1. A door and window linear driving structure based on chain transmission comprises a guide installation section bar (1) and is characterized in that a slide rail is arranged on the guide installation section bar (1), a pulley (2) is freely and slidably arranged on the slide rail, an open step is arranged on the side face of the guide installation section bar (1), a driving motor (3) is fixedly arranged at one end of the guide installation section bar (1), the driving motor (3) is connected to the pulley (2) in a transmission way through a transmission structure (4) and drives the pulley (2) to slide along the slide rail, and the transmission structure (4) comprises a chain (43), a first chain sleeve (41), a second chain sleeve (42) and a gear (44); the first chain sleeve (41) is fixedly arranged at the upper part in the guide mounting section bar (1), a groove capable of accommodating a chain (43) is arranged on the lower surface of the first chain sleeve (41), the section of the second chain sleeve (42) is right-angled and is clamped on an open step of the guide mounting section bar (1) and shields the section bars at the bottom and the side of the open step, two gears (44) are arranged and are respectively rotatably arranged at two ends of the guide mounting section bar (1), one gear (44) is in transmission connection with the driving motor (3) and serves as a driving wheel, and the other gear (44) serves as a driven wheel; the chain (43) forms a closed loop and is meshed with the two gears (44), one part of the chain (43) is embedded in the groove of the first chain sleeve (41) in a sliding way, and the other part of the chain (43) is placed on the second chain sleeve (42); the part of chain (43) in the recess be provided with the joint structure that promotes coaster (2) and remove, coaster (2) on fixed be provided with stretch out direction installation section bar (1) and fixed connection to connecting rod (5) of door and window fan.

2. The door and window linear driving structure based on chain transmission is characterized in that the section of the guide mounting section bar (1) is rectangular, the guide mounting section bar is divided into a first transmission area, a sliding area (13) and an output area (12) from top to bottom, and a mounting area (11) is arranged on one side of the sliding area (13); first transmission zone bottom be provided with gum cover bearing muscle (14) that inwards transversely stretches out, first chain cover (41) through gum cover bearing muscle (14) fixed joint in first transmission zone, slip district (13) top both sides all be provided with horizontal guide rail (15) that transversely stretch out, slip district (13) bottom both sides all are provided with the L shape of transversely stretching out and erect guide rail (16), output district (12) one side be provided with the output opening, installing zone (11) and coaster district (13) just be less than first transmission zone side by side, make the top of installing zone (11) form open step, open step is kept away from one side of first transmission zone and is provided with spacing fence (17) that upwards extends and has formed the second transmission zone, second chain cover (42) install in the second transmission zone through spacing fence (17) joint.

3. The linear driving structure for doors and windows based on chain transmission as claimed in claim 1, wherein said transmission structure (4) further comprises a tightness adjusting structure (6), said tightness adjusting structure (6) comprises two connecting screw cylinders (61) and a double-threaded screw (62), said chain (43) on the second chain sleeve (42) is divided into two sections, each of the two sections is fixedly connected with one connecting screw cylinder (61), the two connecting screw cylinders (61) are respectively connected to two ends of the double-threaded screw (62), and the threads of the two ends of the double-threaded screw (62) are opposite.

4. The chain-drive-based door and window linear driving structure as claimed in claim 1, wherein the first chain sleeve (41) and the second chain sleeve (42) are made of smooth hard nylon plastic.

5. A linear driving structure for chain-driven doors and windows according to claim 1, wherein the gear (44) as the driven wheel is replaced by a reverse wheel (45), and the reverse wheel (45) is provided with a chain groove extending circumferentially and accommodating the chain (43).

6. A chain-drive-based linear drive structure for doors and windows according to claim 1, characterized in that said trolley (2) comprises a body (21) and a plurality of pairs of vertical pulleys (22) arranged on both sides of the body (21), said vertical pulleys (22) being slidably connected to the vertical guide (16) of the guide mounting section bar (1); the top of the car body (21) is rotatably provided with a plurality of upper transverse wheels (23), and the upper transverse wheels (23) are in sliding connection and in clearance fit with the transverse guide rails (15) of the guide mounting section bars (1); the bottom of the car body (21) is rotatably provided with a plurality of lower transverse wheels (24), and the lower transverse wheels (24) are in sliding connection and in clearance fit with the L-shaped side surfaces of the vertical guide rails (16) of the guide mounting section bar (1); automobile body (21) bottom fixed mounting have connecting rod (5), automobile body (21) top be provided with joint arch (25), the joint structure of chain (43) be the double-deck chain of chain unit at corresponding joint arch (25) both ends, joint arch (25) card go into the concave position that forms between two chain units.

7. The chain-drive-based door and window linear driving structure as claimed in claim 6, wherein the clamping protrusions (25) can be two rail wheel guard plates (26), the rail wheel guard plates (26) are respectively disposed at two ends of the vehicle body (21), extend from two ends of the vehicle body (21) to shield the upper rail wheel (23) at the corresponding end and then extend upwards to a position below the chain (43); the two double-layer chain units of the clamping structure of the chain (43) are respectively positioned at the outer sides of the two transverse wheel guard plates (26).

Background

With the development of informatization, the concept of smart home is gradually rising, and a large number of motors are required to be used as a power system in the smart home. Particularly, in the aspect of doors and windows, the motor is required to drive the doors and windows to be automatically opened and closed. Present electric door and window's drive structure part adopts linear electric motor, but linear electric motor is expensive and the technique is still immature, and stability is relatively poor and need certain buffer distance when starting, and the influence is used and is experienced.

Some electric door and window in addition adopt traditional motor cooperation transmission structure to realize rectilinear movement, but this kind of transmission structure wraps up in the section bar at present mostly, and inconvenient overhauls and maintains transmission structure, can not bear too big weight moreover, simultaneously easy because complicated transmission structure causes great noise and power loss.

Disclosure of Invention

Based on the problems in the prior art, the invention provides a door and window linear driving structure based on chain transmission, which comprises a guide installation section bar, wherein a slide rail is arranged on the guide installation section bar, a pulley is freely and slidably arranged on the slide rail, an open step is arranged on the side surface of the guide installation section bar, one end of the guide installation section bar is fixedly provided with a driving motor, the driving motor is connected to the pulley in a transmission manner through a transmission structure and drives the pulley to slide along the slide rail, and the transmission structure comprises a chain, a first chain sleeve, a second chain sleeve and a gear; the first chain sleeve is fixedly arranged at the upper part in the guide mounting section bar, a groove capable of accommodating a chain is arranged on the lower surface of the first chain sleeve, the section of the second chain sleeve is right-angled and is clamped on an open step of the guide mounting section bar, the section bars at the bottom and the side of the open step are shielded, two gears are arranged and are respectively rotatably arranged at two ends of the guide mounting section bar, one gear is in transmission connection with a driving motor and serves as a driving wheel, and the other gear serves as a driven wheel; the chain forms a closed loop and is meshed with the two gears, one part of the chain is embedded in the groove of the first chain sleeve in a sliding manner, and the other part of the chain is placed on the second chain sleeve; the part of chain in the recess be provided with the joint structure that promotes the coaster and remove, the coaster on fixed be provided with stretch out the direction installation section bar and fixed connection to the connecting rod of door and window fan.

The guide installation section bar is rectangular in section and is divided into a first transmission area, a sliding area and an output area from top to bottom, and an installation area is arranged on one side of the sliding area; first transmission district bottom be provided with the gum cover bearing muscle that inwards transversely stretches out, first chain cover pass through gum cover bearing muscle fixed joint in first transmission district, slip district top both sides all be provided with the horizontal guide rail that transversely stretches out, slip district bottom both sides all are provided with the perpendicular guide rail of L shape that transversely stretches out, output district one side be provided with the output opening, installing zone and coaster district just be less than first transmission district side by side, make the top of installing zone form open step, one side that first transmission district was kept away from to open step is provided with the spacing fence that upwards extends and has formed the second transmission district, second chain cover install in the second transmission district through spacing fence joint.

The transmission structure further comprises a tightness adjusting structure, the tightness adjusting structure comprises two connecting screw cylinders and a double-end screw, the chain is divided into two sections on the second chain sleeve, the two sections are respectively fixedly connected with one connecting screw cylinder, the two connecting screw cylinders are respectively in threaded connection with the two ends of the double-end screw, and the threads at the two ends of the double-end screw are opposite.

Wherein, the material of first chain cover and second chain cover be glossy stereoplasm nylon plastics, the chain cover of making by glossy nylon can carry out the centre gripping to the chain spacing, also can avoid chain and section bar collision noise emission when guaranteeing stability.

According to the other preferable scheme, the gear of the driven wheel is replaced by the reversing wheel, the reversing wheel is provided with the chain groove which extends in the circumferential direction and can accommodate the chain, the gear is replaced by the reversing wheel, the requirement on coordination during installation can be reduced, and the installation efficiency is improved.

The pulley comprises a body and a plurality of pairs of vertical pulleys arranged on two sides of the body, and the vertical pulleys are connected to vertical guide rails of the guide mounting section in a sliding manner; the top of the car body is rotatably provided with a plurality of upper transverse wheels, and the upper transverse wheels are in sliding connection and in clearance fit with the transverse guide rails of the guide mounting section bars; the bottom of the car body is rotatably provided with a plurality of lower transverse wheels, and the lower transverse wheels are in sliding connection and in clearance fit with the L-shaped side surface of the vertical guide rail of the guide mounting section bar; the automobile body bottom fixed mounting have the connecting rod, the automobile body top is provided with the joint arch, the joint structure of chain be the double-deck chain of chain unit that corresponds the protruding both ends of joint, the protruding card of joint go into the concave position that forms between two chain units.

According to another preferred scheme, the clamping protrusions can be two transverse wheel guard plates which are respectively arranged at two ends of the vehicle body, extend out of the two ends of the vehicle body, shield the upper transverse wheel at one corresponding end and extend upwards to the lower side of the chain; two double-deck chain units of joint structure of chain be located the outside of two band pulley backplate respectively, with the protruding optimization of joint for two band pulley backplate, can guarantee to realize the transmission between coaster and the chain and connect, also can play the purpose of protecting the upper transverse wheel, avoid the upper transverse wheel because the collision is too much and rapid wear in the in-process that uses.

Wherein, a door and window linear driving structure based on chain drive still including decorating the shell, decorate the shell including constituteing a last horizontal material and two perpendicular materials of door shape, last horizontal material parcel direction installation section bar, driving motor fixed mounting in one of them perpendicular material, decorate the shell and can cooperate conventional door and window frame material section bar to make, perhaps directly with motor fixed mounting in perpendicular frame material, transmission structure also can be to rotate from the driving wheel and install in perpendicular frame material, also can install in the direction installation section bar of extension.

The invention has the following beneficial effects:

1. the transmission structure passes through the cooperation of chain, first chain cover, second chain cover and gear, and simple structure is reasonable, is difficult for causing the loss of power, and chain and coaster joint belong to the rigid connection moreover, and the stroke of control coaster that can be accurate is convenient the dismantlement simultaneously. Meanwhile, as the smooth plastic chain sleeve made of nylon is adopted, the movement of the chain is quieter, and the noise is avoided; and one part of the chain of the transmission structure is in an open design, so that the chain is convenient to maintain and repair, and when lubricating oil is required to be added to the chain, the chain only needs to be rotated and added in an open area; the chain can be inspected and the chain unit replaced in the open area in the same way.

2. The tightness adjusting structure in the transmission structure and the design that the driven wheel is the reversing wheel enable the tightness degree of the chain to be adjusted slightly conveniently by rotating the double-end screw, and the chain is suitable for doors and windows with different specifications and sizes.

3. The tackle is provided with a plurality of groups of transverse wheels, including an upper transverse wheel and a lower transverse wheel, so that the tackle can move more stably, can bear larger weight, and can adapt to ultra-large doors and windows and even move glass curtain walls.

Drawings

Fig. 1 is a schematic perspective view of a linear driving structure for doors and windows based on chain transmission.

Fig. 2, enlarged a of fig. 1.

Fig. 3, enlarged B of fig. 1.

Fig. 4 is an enlarged view of fig. 1 at C.

Fig. 5 is a side view of a linear driving structure for doors and windows based on chain transmission, hiding gears and a driving motor.

Fig. 6 shows the structure of the transmission structure and the pulley.

Fig. 7 is a schematic view of the transmission structure and the pulley, and two chain sleeves are hidden.

Fig. 8, enlarged view at D of fig. 7.

Fig. 9 is an enlarged view of the pulley in the second embodiment.

Fig. 10, a schematic view of the installation of the decorative cover.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The first embodiment is as follows:

the door and window linear driving structure based on chain transmission shown in fig. 1-8 comprises a guide installation section bar 1, wherein the section of the guide installation section bar 1 is rectangular, and is divided into a first transmission area, a sliding area 13 and an output area 12 from top to bottom, one side of the sliding area 13 is provided with an installation area 11, when in actual installation, a round hole or a strip-shaped hole can be formed in the section bar of the installation area 11, and then the guide installation section bar 1 is fixedly installed on a wall or other positions needing to be installed by matching with a bolt or an explosive screw; the inner walls of the profiles at the two sides of the bottom of the first transmission area are provided with rubber sleeve bearing ribs 14 which extend inwards and transversely, the rubber sleeve bearing ribs 14 can be clamped with the first chain sleeve 41 and can also increase the strength of the guide installation profile 1, the inner walls of the profiles at the two sides of the top of the sliding area 13 are provided with transverse guide rails 15 which extend transversely, the profiles at the two sides of the bottom of the sliding area 13 are provided with L-shaped vertical guide rails 16 which extend transversely, one side of the output area 12 is provided with an output opening, a connecting rod 5 on the pulley extends out of the guide mounting section bar 1 from the output opening and is fixedly connected with a door and window sash or other objects needing to move, the mounting area 11 and the pulley area 13 are arranged side by side and are lower than the first transmission area, so that an open step is formed at the top of the mounting area 11, and one side of the open step, which is far away from the first transmission area, is provided with a limit fence 17 extending upwards and forms a second transmission area developed outwards.

The guide mounting section bar 1 is provided with a transmission structure, and the transmission structure 4 comprises a chain 43, a first chain sleeve 41, a second chain sleeve 42, a gear 44, a reversing wheel 45 and an elastic adjustment structure 6; the tightness adjusting structure 6 comprises two connecting screw cylinders 61 and a double-end screw 62; the shape of the first chain sleeve 41 is the same as that of the first transmission area, the first chain sleeve 41 is fixedly clamped in the first transmission area through a rubber sleeve bearing rib 14, a groove capable of accommodating a chain 43 is formed in the lower surface of the first chain sleeve 41, the section of the second chain sleeve 42 is right-angled, and the second chain sleeve 42 is clamped and mounted in the second transmission area through a limiting rail 17 and shields profiles at the bottom and the side of the second transmission area; the gear 44 and the reversing wheel 45 are respectively rotatably arranged at two ends of the guide mounting section bar 1, wherein the gear 44 is in transmission connection with the driving motor 3 fixedly arranged at one end of the guide mounting section bar 1 and is used as a driving wheel; the reversing wheel 45 is provided with a chain groove which extends in the circumferential direction and can accommodate the chain 43, and is used as a driven wheel; the chain 43 forms a closed loop, one end of the closed loop is meshed with the gear 44, the other end of the closed loop is embedded in a chain groove of the reversing wheel 45, one part of the chain 43 is embedded in a groove of the first chain sleeve 41 in a sliding mode, the other part of the chain 43 is placed on the second chain sleeve 42 and is divided into two sections, the two sections are fixedly connected with a connecting screw cylinder 61 respectively, the two connecting screw cylinders 61 are connected to two ends of the double-headed screw 62 in a threaded mode respectively, and threads at two ends of the double-headed screw 62 are opposite; the part of the chain 43 in the groove is provided with a clamping structure for pushing the pulley 2 to move.

The pulley 2 comprises a body 21 and two pairs of four vertical pulleys 22 arranged on two sides of the body 21, and the vertical pulleys 22 are connected to the vertical guide rails 16 of the guide mounting profile 1 in a sliding manner; the top of the vehicle body 21 is rotatably provided with two upper transverse wheels 23, and the upper transverse wheels 23 are in sliding connection and in clearance fit with the transverse guide rails 15 of the guide mounting section bar 1; the bottom of the vehicle body 21 is rotatably provided with two lower transverse wheels 24, and the lower transverse wheels 24 are in sliding connection and in clearance fit with the L-shaped side surfaces of the vertical guide rails 16 of the guide mounting section bars 1; the connecting rod 5 is fixedly installed at the bottom of the vehicle body 21, the clamping protrusion 25 is arranged at the top of the vehicle body 21, the clamping structure of the chain 43 is that the chain units corresponding to the two ends of the clamping protrusion 25 are double-layer chains, and the clamping protrusion 25 is clamped into a concave position formed between the two chain units; the driving motor 3 is connected to the pulley 2 through a transmission structure 4 in a transmission mode and drives the pulley 2 to slide along a sliding rail, and a connecting rod 5 which extends out of the guide mounting section bar 1 and is fixedly connected to the door and window sash is fixedly arranged on the pulley 2.

In a preferred embodiment, the first chain cover 41 and the second chain cover 42 are made of nylon.

As a preferred embodiment, as shown in fig. 10, the linear driving structure for doors and windows based on chain transmission may further include a decorative shell, the decorative shell includes an upper horizontal member 7 and two vertical members 8 forming a door shape, the upper horizontal member 7 wraps the guide mounting profile 1, the driving motor 3 is fixedly installed in one of the vertical members 8, and the reversing wheel 45 is rotatably installed in the vertical member 8.

Example two:

the difference between the first embodiment and the second embodiment lies in that the structure of the pulley is different, as shown in fig. 9, the clamping protrusion 25 is replaced by two cross wheel guards 26, the cross wheel guards 26 are respectively arranged at two ends of the body 21, extend out from two ends of the body 21 to shield the upper cross wheel 23 at the corresponding end and then extend upwards to the lower side of the chain 43; the two double-layer chain units of the clamping structure of the chain 43 are respectively positioned at the outer sides of the two transverse wheel guard plates 26.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.