1. The utility model provides an air flow detection device for gas mask air feeder, a serial communication port, including flow body (1), a float (2) has been placed in the inner chamber activity of flow body (1), float (2) can be about the inner chamber of flow body (1) is free under the air current effect, the one end of flow body (1) has special interface (101) of air feeder, and one end has special interface (102) of air duct in addition, and the inner chamber that is located flow body (1) of special interface (101) of air feeder and special interface (102) department of air duct is equipped with arch (103) of avoiding float (2) roll-off respectively, flow body (1) is made by transparent material, has the flow scale mark on flow body (1), and flow body (1) outer wall has arc breach (104) convenient for holding.

2. The airflow detecting device for a ventilator of a gas mask as claimed in claim 1, wherein the flow tube body (1) comprises two half tubes (105) connected together in an involutory manner.

3. The airflow detecting device for a ventilator of a respirator as claimed in claim 2, wherein the two half-pipes (105) are connected together by a snap-fit structure (108) or/and an inlay structure (109).

4. The airflow rate detecting device for a ventilator of a respirator as set forth in claim 1, 2 or 3 wherein said flow rate scale markings comprise an upper flow rate limit marking (106) and a lower flow rate limit marking (107).

5. The airflow detection device for the ventilator of the gas mask as claimed in claim 1, 2 or 3, wherein the outer wall of the flow tube body (1) is thicker near the ventilator specific interface (101) and thinner near the airway specific interface (102).

Background

The detection of the air flow of the traditional gas mask air feeder needs a special connecting pipeline and an electronic flowmeter, and is mostly detected in a laboratory environment, the actual application scene often needs to carry out quick detection of the air flow before a user wears a gas mask product, and the industrial gas flow meters with large volume and complexity in the market have high cost and are inconvenient for detecting the air flow.

Disclosure of Invention

The invention provides an airflow detection device for a gas mask blower, aiming at solving the problems of high cost and inconvenient use of the existing gas flowmeter.

The invention is realized by the following technical scheme: the utility model provides an air flow detection device for gas mask air feeder, includes the flow body, a float has been placed in the inner chamber activity of flow body, the float can be under the air current effect in the inner chamber of flow body from top to bottom freely, the one end of flow body has the special interface of air feeder, and one end has the special interface of air duct in addition, and the inner chamber that is located the flow body of the special interface of air feeder and the special interface of air duct is equipped with the arch of avoiding the float roll-off respectively, the flow body is made by transparent material, has the flow scale mark on the flow body, and flow body outer wall has the arc breach of being convenient for to hold.

As a further improvement of the technical scheme of the invention, the flow pipe body comprises two half pipes which are connected together in an involutory mode.

As a further improvement of the technical scheme of the invention, the two half pipes are connected together through a buckling structure or/and an embedding structure.

As a further improvement of the technical solution of the present invention, the flow rate scale marks include a flow rate upper limit mark and a flow rate lower limit mark.

As a further improvement of the technical scheme of the invention, the outer wall of the flow pipe body is thicker at the special interface close to the air blower and thinner at the special interface close to the air duct.

The airflow detection device for the gas mask air blower provided by the invention has the advantages of simple structure and low cost, is different from the structure and principle of the traditional electronic airflow detection device, is used as the special airflow detection device for the gas mask electric air blower, and fills up the blank of related products in China. The utility model discloses an air flow detection device for the electronic air-blower of this gas mask can be handed to the user of service, when using, changing the air-blower product, judges whether the air-supply volume of air-blower accords with the operation requirement that PAPR respiratory track protective equipment to the accessible marks detection device's flow scale position again, satisfies the detection of the minimum limit of different gas mask air-blower air flow. By adopting the novel detection device, the detectability of the air feeder of the gas mask is improved, and the performance of the mask is safer and more reliable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of an airflow detection device for a respirator blower according to the present invention.

Fig. 2 is a schematic structural view of the half pipe.

In the figure: 1-flow pipe body, 101-special connector for air blower, 102-special connector for air duct, 103-bulge, 104-arc notch, 105-half pipe, 106-upper flow limit mark, 107-lower flow limit mark, 108-buckle structure, 109-mosaic structure and 2-floater.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the present invention provides a specific embodiment of an airflow detection device for a gas mask blower, including a flow tube 1, a float 2 is movably placed in an inner cavity of the flow tube 1, the float 2 can freely move up and down in the inner cavity of the flow tube 1 under the action of an airflow, one end of the flow tube 1 is provided with a blower-dedicated interface 101, the other end is provided with an airway-dedicated interface 102, the inner cavities of the flow tube 1 at the blower-dedicated interface 101 and the airway-dedicated interface 102 are respectively provided with a protrusion 103 for preventing the float 2 from sliding out, the flow tube 1 is made of a transparent material, the flow tube 1 is provided with flow scale marks, and the outer wall of the flow tube 1 is provided with an arc-shaped notch 104 for easy handling.

When the air quantity detection device is used, the special air feeder interface 101 and the special air duct interface 102 can be respectively connected with an air feeder tank interface or an air duct connecting port, and the air quantity of the air feeder can be quickly detected. In the detection, a power switch of the air feeder is firstly turned on, after the air flow is stable, the air feeder is vertically placed with an air outlet upward and a table top, the floating position of the floater 2 is observed, and whether the air flow meets the minimum air supply quantity requirement of a product or not is judged through the flow scale marks.

In this embodiment, in order to facilitate the observation of the floating position of the float 2, the flow tube 1 is made of a transparent material, preferably a transparent plastic.

Specifically, in order to avoid the float 2 from sliding out from the interface of the flow tube 1 in the use or non-use state, protrusions 103 are respectively provided at two ends of the flow tube 1. The protrusion 103 has a small inner diameter area with respect to the flow tube body 1, and therefore hardly affects flow detection.

In addition, the arc-shaped notch 104 can facilitate a user to detect the device, and is also convenient to carry and use.

Specifically, the flow pipe body 1 includes two half pipes 105 connected together in an involutory manner.

As shown in fig. 2, the two tube halves 105 are connected together by snap features 108 or/and inlay features 109. In this embodiment, the fastening structure 108 includes a clip and a slot engaged with the clip, and the damascene structure 109 includes a fillet and a slot adapted to the fillet. In this embodiment, the two half-tubes 105 can be connected together by both the snap-fit structure 108 and the insert structure 109, or by only one of the connection methods.

In particular implementation, as shown in fig. 1, the flow rate scale markings include an upper flow rate limit marking 106 and a lower flow rate limit marking 107. Therefore, whether the airflow meets the requirement of the air supply quantity of the product or not is judged conveniently.

As shown in fig. 1, the outer wall of the flow pipe body 1 is thicker near the blower-dedicated interface 101 and thinner near the airway-dedicated interface 102. This structure is convenient for the user to correspond flow body 1 and forced draught blower jar interface, air duct connector according to the outer wall pipe diameter fast and is connected, convenient operation.

As shown in fig. 2, in the present embodiment, one of the flow tubes 1 is irregularly thick, and the other is regularly thin.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.