1. Gas detection device is used in environmental monitoring, its characterized in that includes: the device comprises an equipment base (100), a circulating pumping mechanism (200) and an incremental flow guide mechanism (300), wherein the circulating pumping mechanism (200) and the incremental flow guide mechanism (300) are fixedly arranged on the surface of the equipment base (100), ultrasonic cavitation mechanisms (500) are fixedly arranged on the upper surface and the lower surface of the incremental flow guide mechanism (300), a sensing end head (400) is arranged at one end of the incremental flow guide mechanism (300), and a plurality of gas detection sensors (410) are embedded and arranged on the inner side of the sensing end head (400);

the circulating pumping mechanism (200) comprises a driving mechanism, a driving box (210) and a pumping box (220), a transmission toothed column (250) in transmission connection with the output end of the driving mechanism is arranged inside the driving box (210), the output end of the transmission toothed column (250) is fixedly connected with a motion meshing column (230), the top end of the motion meshing column (230) is in sliding clamping connection with a pumping valve plate (240), and the pumping valve plate (240) is arranged on the pumping valve plate;

the incremental flow guide mechanism (300) comprises a flow guide column pipe (310), flow increasing rings (320), Tesla pressurizing guide pipes (330) and backflow rings (340), wherein the flow increasing rings (320) and the backflow rings (340) are respectively positioned at two ends of the flow guide column pipe (310), the cavitation ball cabin (350) is fixedly sleeved on the outer side of the flow guide column pipe (310), the ultrasonic cavitation mechanism (500) is respectively communicated with the upper end and the lower end of the cavitation ball cabin (350), the number of the backflow rings (340) is a plurality, the backflow rings are axially and uniformly distributed on the outer side of the flow guide column pipe (310), and the flow increasing grooves (331) are formed in the inner side of the Tesla pressurizing guide pipe (330);

ultrasonic cavitation mechanism (500) are linked together in the inside supersonic generator (520) of oscillating cavitation seat (510) including oscillating cavitation seat (510) and fixed mounting, the one end of oscillating cavitation seat (510) and the inside of cavitation ball cabin (350), the fixed joint of port of supersonic generator (520) has (530), (530) are arc hunch net structure.

2. The gas detection apparatus for environmental monitoring according to claim 1, wherein a dynamic seal (241) is fixedly attached to both sides of the pumping valve plate (240), an outer side of the dynamic seal (241) is in sliding contact with an inner side of the pumping box (220), and the dynamic seal (241) is a member made of polytetrafluoroethylene.

3. The gas detection device for environmental monitoring according to claim 1, wherein a sliding groove is formed in the surface of the motion engagement column (230), the bottom end of the pumping valve plate (240) is sleeved inside the sliding groove of the pumping valve plate (240), the periphery of the pumping valve plate (240) is in interference fit with the inner side of the pumping box (220) through a movable sealing strip (241), one side and the top surface of the pumping box (220) are respectively provided with a gas outlet end pipe and a gas inlet end pipe which are communicated with the flow increasing ring (320) and the backflow ring (340), and one-way valves are arranged inside the gas outlet end pipe and the gas inlet end pipe.

4. The gas detecting apparatus for environmental monitoring as recited in claim 1, wherein the tesla pressurizing conduit (330) has a U-shaped structure, two sides of the tesla pressurizing conduit (330) are inclined and parallel, the inner wall of the pressurizing tank (331) is smooth and strong, the number of the tesla pressurizing conduits (330) is four and is divided into two groups, and the two groups of tesla pressurizing conduits (330) are arranged in a vertical and opposite direction.

5. The gas detection device for environmental monitoring according to claim 1, wherein the flow increasing ring (320) and the backflow ring (340) have the same structure and each include a gas distribution ring (341), the gas distribution ring (341) has a plurality of annular guiding holes (342) formed inside thereof, and the annular guiding holes (342) are annularly distributed and are communicated with the inner cavity of the gas distribution ring (341).

6. The gas detection device for environmental detection according to claim 5, wherein the backflow ring (340) further comprises a static electricity guide seat (343) fixedly installed at one side of the gas distribution ring (341), a static electricity guide seat (344) located at one side of the gas distribution ring (341) is fixedly installed at one side of the static electricity guide seat (343), a plurality of densely distributed electrode wires are arranged on the surface of the static electricity guide seat (344), and an end of the static electricity guide seat (344) is electrically connected with a static electricity generator.

7. The gas detecting device for environmental monitoring as recited in claim 1, wherein the flow guiding pillar tube (310) has a two-stage structure, and an end of one of the flow guiding pillar tubes (310) is fixedly connected with a conduit end gathering tube (311) located inside the cavitation ball chamber (350), and an inner wall of the other flow guiding pillar tube (310) has a tapered tube cavity structure.

8. The gas detecting apparatus for environmental monitoring as claimed in claim 1, wherein the gas detecting sensor (410) is one of a metal oxide semiconductor type sensor, an electrochemical type sensor, a catalytic combustion type sensor, an infrared type sensor or a PID photo ionization sensor, and the gas detecting sensors (410) are uniformly distributed in a ring shape on the inner side of the susceptor head (400).

Background

Gas information is a very important item at present, but the difficulty of gas detection is quite high, especially in the case that gas in a normal state is often mixed with multiple gases, so that when gas detection is performed, measurement misalignment or failure is often caused by interference of other gases, but at present, in order to avoid the gas to be detected from being interfered by other gases, the gas to be detected is separated before detection, and detection is performed by a method, and in addition, in the existing ambient environment monitoring technology, the types of gas detectors and temperature and humidity detectors are many, including a semiconductor film type, an electrochemical reaction type, a resistance type and the like, and the existing gas detector includes a gas detection unit and a signal transmission unit, the gas detection unit and the signal transmission unit are respectively packaged in separate housings, and the external dimensions of the gas detection unit and the signal transmission unit are generally larger than 20cmx20cmx20cm, so that, the gas detector has the advantages that the gas detector is less in gas quantity contacted in unit time, a plurality of sensing probes, a PLC (programmable logic controller) system and a communication module are required to be arranged for multipoint detection to realize gas and temperature and humidity monitoring perception in a large environment range, and the multipoint detection adopts the maximum sample number to reduce the occurrence of accidents and uncertain events, so that the equipment cost is high.

The water vapor existing in the environment has certain non-cooperativity for gas detection, namely water vapor interference exists, most water vapor particles are in a mist state granular state in the air, when the particles are formed, a large amount of impurities in the air are needed to be used as condensation nuclei, and the large amount of impurities are wrapped by the atomized particles and are difficult to be sensed by various sensors; for example, in the infrared gas detection sensing element, an internal gas chamber thereof is formed by an optical device, infrared light is reflected in the gas chamber for multiple times and then enters a detector to finally realize gas concentration measurement, wherein the optical gas chambers are all metal gold-plated parts, the surface of the infrared gas chamber is very easy to dewfall under a high-temperature high-humidity environment, and once the optical surface dewfalls, the original reflection route of the light is inevitably changed, so that the measurement data is greatly deviated, and how to effectively prevent the internal dewfall of the infrared element in the high-temperature high-humidity environment becomes a prerequisite condition whether the infrared gas detection sensing technology can be used for detecting toxic gas in a coal mine.

In view of the above, the present invention is to provide a gas detection device for environmental detection, which is improved in view of the conventional problems, to solve the problems that the conventional air detection sensor is susceptible to environmental influences and measurement contingency is high, and to achieve the purposes of solving the problems and improving practical value by the technology.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art or the related art.

Therefore, the technical scheme adopted by the invention is as follows: a gas detection device for environmental monitoring, comprising: the device comprises an equipment seat, a circulating pumping mechanism and an incremental flow guide mechanism, wherein the circulating pumping mechanism and the incremental flow guide mechanism are fixedly arranged on the surface of the equipment seat; the circulating pumping mechanism comprises a driving mechanism, a driving box and a pumping box, wherein a transmission toothed column in transmission connection with the output end of the driving mechanism is arranged inside the driving box, the output end of the transmission toothed column is fixedly connected with a movement meshing column, and the top end of the movement meshing column is slidably clamped with a pumping valve plate; the incremental flow guide mechanism comprises a flow guide column pipe, a flow increasing ring, a Tesla pressurizing conduit and a backflow ring, the flow guide column pipe is of a two-section structure, the end part of one section of flow guide column pipe is fixedly connected with a gathering end pipe positioned in the cavitation ball cabin, the inner wall of the other section of flow guide column pipe is of a tapered pipe cavity structure, the flow increasing ring and the backflow ring are respectively positioned at two ends of the flow guide column pipe, the cavitation ball cabin is fixedly sleeved on the outer side of the flow guide column pipe, the ultrasonic cavitation mechanism is respectively communicated with the upper end and the lower end of the cavitation ball cabin, the number of the backflow rings is a plurality, the backflow rings are axially and uniformly distributed on the outer side of the flow guide column pipe, and the inner side of the Tesla pressurizing conduit is provided with an incremental groove; the ultrasonic cavitation mechanism comprises a vibration cavitation seat and an ultrasonic generator fixedly installed inside the vibration cavitation seat, one end of the vibration cavitation seat is communicated with the inside of the cavitation ball cabin, and the port of the ultrasonic generator is fixedly clamped and connected with the ultrasonic generator and is of an arc arch net structure.

The present invention in a preferred example may be further configured to: the two sides of the pumping valve plate are fixedly adhered with movable sealing strips, the outer sides of the movable sealing strips are in sliding abutting joint with the inner side of the pumping box, and the movable sealing strips are members made of polytetrafluoroethylene materials;

further, the surface of motion nibbling post begins to have the spout, the bottom of pump sending valve plate is cup jointed inside the spout of pump sending valve plate, the week side of pump sending valve plate is through moving the inboard interference fit of sealing strip and pump sending box, one side and the top surface of pump sending box are equipped with respectively and increase the end pipe and the inlet end pipe of giving vent to anger that flow ring and backflow ring are linked together, and the inside of giving vent to anger end pipe and inlet end pipe all is equipped with the check valve.

Through adopting above-mentioned technical scheme, through the rotary motion of pumping valve plate in pumping box inside, the pumping valve plate carries out horizontal slip and rotary motion under the drive of motion meshing post to form negative pressure and pressure boost in the pumping box inside and carry out suction and pump sending air current, form the gas motion of circulation flow, and form the siphon effect at the one end of water conservancy diversion post pipe under the conduction effect of this burst of air current, the acceleration rate effect through siphon effect and tesla valve carries out the increase of circulation gas flow.

The present invention in a preferred example may be further configured to: the utility model discloses a drainage device, including a drainage groove, a plurality of tesla pressure boost pipes, a plurality of flow boost pipes, a plurality of smooth grooves, a plurality of grooves and a plurality of grooves.

Through adopting above-mentioned technical scheme, utilize tesla valve structure, under the drive of circulating pump, carry out the increase of circulation gas flow through the acceleration rate effect of siphon effect and tesla valve.

The present invention in a preferred example may be further configured to: the structure of the flow increasing ring is the same as that of the backflow ring, the flow increasing ring and the backflow ring both comprise gas distribution rings, a plurality of annular guide holes are formed in the inner sides of the gas distribution rings, and the annular guide holes are distributed annularly and are communicated with the inner cavities of the gas distribution rings.

Furthermore, the reflux ring further comprises a static electricity guide seat fixedly installed on one side of the gas distribution ring, one side of the static electricity guide seat is fixedly installed with the static electricity guide seat located on one side of the gas distribution ring, a plurality of densely distributed electrode wires are arranged on the surface of the static electricity guide seat, and the end part of the static electricity guide seat is electrically connected with a static electricity generator.

Through adopting above-mentioned technical scheme, at the in-process of air current cyclic motion, remove tiny particle impurity and partial atomizing granule in the gas through electrostatic absorption, avoid causing the interference to particle impurity and atomizing granule gas detection.

The present invention in a preferred example may be further configured to: the gas detection sensor is one of a metal oxide semiconductor type sensor, an electrochemical type sensor, a catalytic combustion type sensor, an infrared type sensor or a PID photoionization sensor, and is annularly and uniformly distributed on the inner side of the sensing end head.

Through adopting above-mentioned technical scheme, utilize the impression end to continuously monitor through the air current, stop to detect the interference of contingency and make gaseous detection more accurate.

The beneficial effects obtained by the invention are as follows:

1. according to the invention, the incremental diversion structure is arranged to accelerate and circulate the airflow flowing through the surface of the sensor, so that more airflow diversion quantity of the sensor is increased in a unit chamber, more gas is detected, the average content percentage of toxic substances or other substances to be detected in a unit volume is measured, accidental interference of detection is avoided, and the gas detection is more accurate.

2. According to the invention, the unpowered input acceleration structure is arranged, the Tesla valve structure is utilized, the circulating gas flow is increased under the driving of the circulating pump through the siphoning effect and the acceleration effect of the Tesla valve, and the power siphoning of the gas to be detected is utilized, so that the gas flow without external impurities is prevented from interfering with the gas to be detected.

3. According to the invention, the ultrasonic module is arranged, and ultrasonic oscillation cavitation is carried out on the convection ventilation flow by using the ultrasonic cavitation mechanism, so that the condensation nuclei of atomized particles in the air flow are subjected to cavitation and bursting to form a finer water droplet form, and the water dew formed by water droplets on the surface of the sensor and the failure caused by the internal condensation of the element in a high-temperature and high-humidity environment are avoided more finely.

Drawings

FIG. 1 is a schematic overall structure diagram of one embodiment of the present invention;

FIG. 2 is a schematic structural view of a circulating pumping mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of an incremental diversion mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic view of a pumping valve plate according to an embodiment of the present invention;

fig. 5 is a schematic view of a flow guide column according to an embodiment of the present invention;

FIG. 6 is a schematic view of an ultrasonic cavitation mechanism mounting configuration according to an embodiment of the present invention;

FIG. 7 is a schematic view of a reflow ring configuration in accordance with one embodiment of the present invention;

FIG. 8 is a cross-sectional view of a recirculation ring according to an embodiment of the present invention.

Reference numerals:

100. an equipment base;

200. a circulating pumping mechanism; 210. a drive cartridge; 220. a pumping cassette; 230. the motion engaging column; 240. a pumping valve plate; 250. a transmission tooth column; 241. moving the sealing strip;

300. an incremental diversion mechanism; 310. a flow guiding column pipe; 320. a flow increasing ring; 330. a Tesla pressurizing conduit; 340. a reflux ring; 350. a cavitation ball chamber; 311. a conduit end pipe; 331. a flow increasing groove; 341. a gas distribution ring; 342. a ring groove guide hole; 343. an electrostatic guide seat; 344. an electrostatic guide seat;

400. sensing the end; 410. a gas detection sensor;

500. an ultrasonic cavitation mechanism; 510. oscillating cavitation seat; 520. an ultrasonic generator; 540. and (5) exposing the grid.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

It is to be understood that this description is made only by way of example and not as a limitation on the scope of the invention.

A gas detection apparatus for environmental detection according to some embodiments of the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1 to 8, the gas detection apparatus for environmental monitoring according to the present invention includes: the ultrasonic cavitation equipment comprises an equipment seat 100, a circulating pumping mechanism 200 and an incremental flow guide mechanism 300, wherein the circulating pumping mechanism 200 and the incremental flow guide mechanism 300 are fixedly arranged on the surface of the equipment seat 100, the upper surface and the lower surface of the incremental flow guide mechanism 300 are fixedly provided with ultrasonic cavitation mechanisms 500, one end of the incremental flow guide mechanism 300 is provided with a sensing head 400, and the inner side of the sensing head 400 is embedded and provided with a plurality of gas detection sensors 410; the circulating pumping mechanism 200 comprises a driving mechanism, a driving box 210 and a pumping box 220, wherein a transmission toothed column 250 in transmission connection with the output end of the driving mechanism is arranged in the driving box 210, the output end of the transmission toothed column 250 is fixedly connected with a motion meshing column 230, and the top end of the motion meshing column 230 is slidably clamped with a pumping valve plate 240 and a pumping valve plate 240; the incremental flow guiding mechanism 300 comprises a flow guiding column tube 310, a flow increasing ring 320, a Tesla pressurizing conduit 330 and a backflow ring 340, wherein the flow guiding column tube 310 is of a two-section structure, the end part of one section of the flow guiding column tube 310 is fixedly connected with a gathering end tube 311 positioned in a cavitation ball cabin 350, the inner wall of the other section of the flow guiding column tube 310 is of a conical tube cavity structure, the flow increasing ring 320 and the backflow ring 340 are respectively positioned at two ends of the flow guiding column tube 310, the cavitation ball cabin 350 is fixedly sleeved on the outer side of the flow guiding column tube 310, the ultrasonic cavitation mechanism 500 is respectively communicated with the upper end and the lower end of the cavitation ball cabin 350, the number of the backflow rings 340 is a plurality, the backflow rings are axially and uniformly distributed on the outer side of the flow guiding column tube 310, and the flow increasing groove 331 is formed in the inner side of the Tesla pressurizing conduit 330; ultrasonic cavitation mechanism 500 includes oscillating cavitation seat 510 and fixed mounting in oscillating cavitation seat 510 inside supersonic generator 520, the one end of oscillating cavitation seat 510 is linked together with the inside of cavitation ball cabin 350, supersonic generator 520's port fixed joint has 530, 530 is the arc arched net structure, when the air current is in cavitation ball cabin 350's inside, utilize supersonic generator 520 to send the ultrasonic wave and carry out ultrasonic cavitation to the gas of circulation, make the atomizing granule condensation core in the air current carry out the cavitation burst and become more detailed drop of water form, more detailed formation water dew of avoiding sensor surface drop of water, the component is in the inefficacy that high temperature and high humidity environment inside dewfall leads to.

In this embodiment, the two sides of the pumping valve plate 240 are fixedly adhered with the movable sealing strips 241, the outer sides of the movable sealing strips 241 are in sliding contact with the inner side of the pumping box 220, negative pressure suction is intermittently formed on the two sides of the pumping valve plate 240 by utilizing the deflection motion of the pumping valve plate 240 in the pumping box 220 and the matching of the one-way valve, and the movable sealing strips 241 are made of a polytetrafluoroethylene material to reduce sliding friction;

furthermore, a sliding groove is formed on the surface of the moving meshing column 230, the bottom end of the pumping valve plate 240 is sleeved inside the sliding groove of the pumping valve plate 240, the peripheral side of the pumping valve plate 240 is in interference fit with the inner side of the pumping box 220 through a movable sealing strip 241, an air outlet end pipe and an air inlet end pipe communicated with the flow increasing ring 320 and the backflow ring 340 are respectively arranged on one side and the top surface of the pumping box 220, and one-way valves are respectively arranged inside the air outlet end pipe and the air inlet end pipe, by the rotary motion of pumping valve plate 240 inside pumping cassette 220, pumping valve plate 240 performs a left-right sliding and rotary motion driven by motion engaging posts 230, thereby, negative pressure and pressurization are formed inside the pumping box 220 to suck and pump airflow, circularly flowing air movement is formed, a siphon action is formed at one end of the guide pillar pipe 310 under the conduction action of the airflow, and the flowing airflow is increased through the siphon action and the acceleration action of the Tesla valve.

In this embodiment, the tesla pressurizing conduits 330 are U-shaped, two sides of the tesla pressurizing conduits 330 are oblique and parallel, the inner wall of the flow-increasing groove 331 is smooth and smooth, the number of the tesla pressurizing conduits 330 is four and is divided into two groups, and the two groups of tesla pressurizing conduits 330 are vertically and oppositely arranged.

Specifically, utilize the tesla valve structure, under the drive of circulating pump, the acceleration effect through siphon effect and tesla valve carries out the increase of circulation gas flow, avoids sneaking into of the air current of outside impurity, avoids causing the interference to detecting gas.

In this embodiment, the flow increasing ring 320 and the backflow ring 340 have the same structure and each include a gas distribution ring 341, the inner side of the gas distribution ring 341 is provided with a plurality of annular guide holes 342, and the annular guide holes 342 are annularly distributed and communicated with the inner cavity of the gas distribution ring 341, so that the flow of the gas is guided by the flow increasing ring 320 and the backflow ring 340, and a part of the gas flows circularly flow inside the column guide pipe 310.

Further, the backflow ring 340 further includes a static electricity guiding seat 343 fixedly installed at one side of the gas distribution ring 341, a static electricity guiding seat 344 located at one side of the gas distribution ring 341 is fixedly installed at one side of the static electricity guiding seat 343, a plurality of densely distributed electrode wires are arranged on the surface of the static electricity guiding seat 344, and an end portion of the static electricity guiding seat 344 is electrically connected with a static electricity generator.

Specifically, in the process of air flow circulating motion, tiny particle impurities and part of atomized particles in the air are removed through electrostatic adsorption, and the interference on the detection of the particle impurities and the atomized particle air is avoided.

In this embodiment, the gas detection sensor 410 is a metal oxide semiconductor type sensor, an electrochemical sensor, a catalytic combustion type sensor, an infrared type sensor or a PID photoionization sensor, and the gas detection sensor 410 is uniformly distributed on the inner side of the sensing tip 400 in a ring shape, and the sensing tip 400 is used to continuously monitor the passing gas flow, so that the accidental interference of detection is avoided, and the gas detection is more accurate.

The working principle and the using process of the invention are as follows:

the end pipe of the circulating pumping mechanism 200 is respectively communicated with the ports of the flow increasing ring 320 and the backflow ring 340, the circulating pumping mechanism 200 is started to pump gas, the gas flow is sucked from the surface of the port of the backflow ring 340 and enters the inside of the pumping box 220, negative pressure suction is discontinuously formed on two sides of the pumping valve plate 240 by utilizing the deflection motion of the pumping valve plate 240 in the inside of the pumping box 220 and through the matching of a one-way valve, the gas is pumped into the flow increasing ring 320 and enters the inside of the guide post pipe 310 through the notch on the surface of the flow increasing ring 320, a linear gas flow channel is formed in the guide post pipe 310 and the cavitation ball cabin 350, a siphon effect is formed at one end of the guide post pipe 310 under the conduction effect of the gas flow, the flow rate of the circulating gas is increased through the siphon effect and the acceleration effect of the Tesla valve, the power of the gas to be tested is utilized for siphon, and the gas flow without external impurities, the interference to the detection gas is avoided, and more gas flows are detected;

the airflow is secondarily accelerated through the Tesla pressurizing guide pipe 330 in the process of flowing inside the airflow guide pillar 310, the conduction of the airflow is further accelerated, so that more airflow flows through the surface of the gas detection sensor 410 through the guide pillar 310, when the airflow is inside the cavitation ball cabin 350, ultrasonic cavitation is carried out on the flowing gas by using ultrasonic waves emitted by the ultrasonic generator 520, condensation nuclei of atomized particles in the airflow are subjected to cavitation and burst to form a finer water droplet form, the formation of water dew on the surface of the sensor is more finely avoided, the failure of the element due to condensation inside the high-temperature high-humidity environment is caused, a large amount of airflow flows through the surface of the gas detection sensor 410 to carry out impurity detection, the airflow flowing through the surface of the susceptor is accelerated to flow, so that more airflow guiding flux is increased in the unit chamber of the susceptor, and more gases are detected, the average content percentage of toxic substances or other substances to be detected in unit volume is measured, the accidental interference of detection is avoided, the average impurity content in unit time is measured, and the gas components are determined.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be understood that when an element is referred to as being "mounted to," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.