CN218438917U

CN218438917U - Automatic door opening and closing device capable of automatically engaging and disengaging

Info

Publication number: CN218438917U
Application number: CN202222345671.4U
Authority: CN
Inventors: 陈建东; 陈晓刚; 郑杰龙
Original assignee: Beijing Hongdian Technology Co ltd
Current assignee: Beijing Hongdian Technology Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-02-03
Anticipated expiration: 2032-09-05

Abstract

The utility model relates to a door switch technical field specifically is an automatic door switch of separation and reunion, including door switch, door frame and the door body, and through hinge interconnect between the door frame and the door body to open each other or be closed through door switch between the door frame and the door body, door switch comprises casing, clutch gear mechanism, link mechanism, circuit board, motor, reduction gear mechanism, output shaft and angle encoder. When the utility model is disconnected, the output shaft can move freely without being influenced by the speed reducer; when the door is automatically opened and closed, the door can be automatically disconnected and separated to play a role of preventing clamping if a person pushes and pulls the door, and internal gears are prevented from being damaged by external force, so that the service life is prolonged.

Description

Automatic door opening and closing device capable of automatically engaging and disengaging

Technical Field

The utility model relates to a door closer technical field specifically is an automatic door closer of automatic separation and reunion.

Background

The door is a piece of furniture commonly used in life, generally speaking, the door needs to be installed in a door frame, the door body needs to be connected with the door frame through hinges, the door often needs to be opened and closed when in use, and an automatic door opening and closing device is generally used in the opening and closing process.

At present, automatic door openers are widely applied along with the development of science and technology, but the automatic door openers on the market cannot freely move or can rotate only by needing large torque due to the influence of a reducing mechanism, a human body induction device needs to be additionally installed for having an anti-clamping function, and the defect of high cost is caused by additionally installing a human body induction device; the additional installation of the human body induction sensor on the door also causes the appearance to be influenced and the wiring is difficult; moreover, the external human body sensor is easy to fail, and the anti-pinch function can be disabled if the external human body sensor fails.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic switch door ware of separation and reunion to propose when the clutch breaks off in solving above-mentioned background art, can't make the output shaft not influenced by the speed reducer can the free activity, prevent pressing from both sides the problem of difficulty.

In order to achieve the above purpose, the utility model provides a following technical scheme: an automatic clutch door opening and closing device comprises a door opening and closing device, a door frame and a door body, wherein the door frame is connected with the door body through a hinge, the door frame and the door body are opened or closed mutually through the door opening and closing device, the door opening and closing device consists of a shell, a clutch gear mechanism, a connecting rod mechanism, a circuit board, a motor, a reduction gear mechanism, an output shaft and an angle encoder, the shell is fixedly connected to the surface of the door frame through bolts, the circuit board and the motor are fixed inside the shell through screws, and the reduction gear mechanism is fixed at the input end of the motor; one side in the door opener is rotatably connected with an output shaft through a bearing, and the bottom end of the output shaft penetrates through the shell and is fixed with a connecting rod mechanism; the inside of switch door ware still is provided with the clutch gear mechanism who is used for the separation and reunion, and clutch gear mechanism's fixed surface has the angle encoder who is used for detecting.

Preferably, the clutch gear mechanism comprises an electromagnet, an electromagnet core, a tower spring, a clutch shaft, a clutch gear, a speed reducer output gear and an output shaft gear, the electromagnet is located inside the shell, the electromagnet core capable of moving up and down is connected inside the electromagnet, and the top end of the electromagnet core extends to the inside of the electromagnet and is sleeved with the tower spring.

Preferably, a clutch shaft is fixed at the bottom end of the electromagnet core, a clutch gear is fixed on the surface of the clutch shaft, the output gear of the speed reducer is rotatably connected to the surface of the shell, the output gear of the speed reducer is meshed with the speed reduction gear mechanism, and in a non-disconnection state, the output gear of the speed reducer is meshed with the clutch gear, and each tooth of the output gear of the speed reducer is provided with a chamfer angle.

Preferably, the surface of the shell on one side of the clutch gear is rotatably connected with an output shaft gear, and the output shaft gear is fixedly connected to the surface of the output shaft.

Preferably, the inside of link mechanism is including linking arm, mount pad, regulation spiral shell section of thick bamboo and adjusting screw, linking arm fixed connection is on the surface of output shaft, and the other end of linking arm articulates there is adjusting screw.

Preferably, the mounting seat is mounted on the surface of the door body through a bolt, the surface of the mounting seat is hinged with an adjusting screw cylinder, and the adjusting screw cylinder is in threaded fastening connection with the adjusting screw rod.

Compared with the prior art, the beneficial effects of the utility model are that: when the clutch is disconnected, the automatic door opening and closing device with automatic clutch can enable the output shaft to move freely without being influenced by the speed reducer; when the door is automatically opened and closed, the door can be automatically disconnected and clutched to play an anti-pinch function if a person pushes and pulls the door, and the internal gear is prevented from being damaged by external force, so that the service life is prolonged.

Drawings

Fig. 1 is a schematic view of a usage scenario of the present invention;

FIG. 2 is a schematic view of a partial external structure of the present invention;

FIG. 3 is a schematic view of the internal enlarged structure of the present invention;

fig. 4 is an enlarged schematic structural view of the clutch gear mechanism of the present invention.

In the figure: 1. a door opening and closing device; 11. a housing; 12. a clutch gear mechanism; 13. a link mechanism; 14. a circuit board; 15. a motor; 16. a reduction gear mechanism; 17. an output shaft; 18. an angle encoder; 121. an electromagnet; 122. an electromagnet core; 123. a tower spring; 124. a clutch shaft; 125. a clutch gear; 126. a reducer output gear; 1261. chamfering C; 127. an output shaft gear; 131. a connecting arm; 132. a mounting seat; 133. adjusting the screw cylinder; 134. adjusting the screw rod; 2. a door frame; 3. a door body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and furthermore, the terms "first", "second", "third", "upper, lower, left, right", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Also, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; can be directly connected with each other, also can be indirectly connected with each other through the intermediary, based on the embodiment in the utility model, all other embodiments that ordinary skilled in the art obtained under the prerequisite of not making creative work all belong to the scope of protection of the utility model.

The utility model provides a pair of automatic switch door ware of separation and reunion's structure is as shown in figure 1 and figure 3, including switch door ware 1, door frame 2 and the door body 3, and through hinge interconnect between door frame 2 and the door body 3 to open each other or be closed through switch door ware 1 between door frame 2 and the door body 3, switch door ware 1 comprises casing 11, clutch gear 12, link mechanism 13, circuit board 14, motor 15, reduction gear 16, output shaft 17 and angle encoder 18.

Specifically, in the utility model, in order to ensure that the clutch gear 125 can move smoothly, the center distance between the clutch gear 125 and the output gear 126 and the output gear 127 of the speed reducer needs to be increased, and the proper center distance d between the gear meshed with the clutch gear 125 and the clutch gear 125 is determined by experimental tests to be approximately equal to ((Z1 + Z2)/2 + 0.5) × M (wherein d is the center distance, Z1 is the number of teeth of the clutch gear 125, Z2 is the number of teeth of the gear meshed with the clutch gear 125, and M is the modulus of the clutch gear 125).

Further, as shown in fig. 2 and 3, the housing 11 is fixedly connected to the surface of the door frame 2 by bolts, the circuit board 14 and the motor 15 are fixed inside the housing 11 by screws, and the input end of the motor 15 is fixed with the reduction gear mechanism 16; one side of the inside of door opener 1 is connected with output shaft 17 through the bearing rotation, and the bottom of output shaft 17 runs through casing 11 and is fixed with link mechanism 13, the inside of link mechanism 13 is including linking arm 131, mount pad 132, adjust barrel 133 and adjusting screw 134, mount pad 132 passes through the bolt and installs on the surface of door body 3, and the surface of mount pad 132 articulates there is the regulation barrel 133, and adjust barrel 133 and the mutual screw thread fastening of adjusting screw 134 and be connected, linking arm 131 fixed connection is on the surface of output shaft 17, and the other end of linking arm 131 articulates there is adjusting screw 134.

Specifically, in order to solve the problem that the teeth of the clutch gear 125 cannot be clamped into the teeth of the output shaft gear 127 due to the mutual collision of the teeth of the clutch gear 125 when the clutch gear 125 moves up and down and contacts the output shaft gear 127 from disconnection to contact, thereby causing clutch failure, a chamfer angle 1261 is arranged at the butt tooth edge of the clutch gear 125 and the output shaft gear 127 (the chamfer angle 1261 is approximately equal to pi M/4, wherein pi is the circumferential rate, and M is the module of the clutch gear 125).

Further, as shown in fig. 2 and 4, a clutch gear mechanism 12 for clutch is further disposed inside the door opening and closing device 1, the clutch gear mechanism 12 includes an electromagnet 121, an electromagnet core 122, a tower spring 123, a clutch shaft 124, a clutch gear 125, a reducer output gear 126 and an output shaft gear 127, the electromagnet 121 is disposed inside the housing 11, the electromagnet 121 is connected inside the housing 11, the electromagnet core 122 is capable of moving up and down, a top end of the electromagnet core 122 extends into the electromagnet 121 and is sleeved with the tower spring 123, the clutch shaft 124 is fixed to a bottom end of the electromagnet core 122, the clutch gear 125 is fixed to a surface of the clutch shaft 124, the reducer output gear 126 is rotatably connected to a surface of the housing 11, the reducer output gear 126 and the reducer gear mechanism 16 are mutually engaged, and in a non-disconnected state, the reducer output gear 126 and the clutch gear 125 are mutually engaged, a reverse C angle 1261 is formed on each side of the reducer output gear 126, the surface of the housing 11 on a side of the clutch gear 125 is rotatably connected to the output shaft gear 127, the output shaft gear 127 is fixedly connected to a surface of the output shaft 17, and a tooth encoder 18 for detecting an angle is fixed to a surface of the clutch gear mechanism 12.

In implementation, when the motor 15 is powered on, the reducer output gear 126 drives the clutch gear 125 to rotate, and simultaneously, when the electromagnet 121 is powered on, the electromagnet core 122 pushes the clutch shaft 124 and the clutch gear 125 downwards to move, when the clutch gear 125 collides with the output shaft gear 127, because the bevel edge of the clutch gear 125 and the tooth edge of the output shaft gear 127 has the chamfer 1261, at this time, the bevel edge of the chamfer 1261 contacts the clutch gear 125, and the bevel edge of the tooth of the clutch gear 125 slides along the bevel edge of the tooth of the output shaft gear 127 under the thrust action of the electromagnet 121 in the rotating process until the clutch gear 125 is meshed with the output shaft gear 127, so that the clutch is successful.

In the process of opening and closing the door, when the door is bumped to an obstacle and the door cannot be opened and closed continuously or someone pushes the door in a reverse direction, the angle encoder 18 detects that the rotation of the output shaft 17 stops or rotates in the reverse direction, and at this time, if the electromagnet 121 and the motor 15 are powered off simultaneously, because pressure exists between the tooth end surfaces of the clutch gear 125 and the output shaft gear 127, the force of the tower spring 123 with large friction force between the clutch gear 125 and the output shaft gear 127 cannot drive the electromagnet 121 to bounce, and in order to solve the problem, the magnet needs to be powered off first, the motor 15 is rotated reversely, and the clutch gear 125 is rotated reversely at this time, so that the center distance between the clutch gear 125 and the output gear 126 of the speed reducer and the center distance between the output shaft gear 127 are increased, when the clutch gear 125 rotates reversely, the clutch gear 125 and the output shaft gear 127 have a gap between the clutch gear 125 and the output shaft gear 127, and the friction force between the clutch gear 125 and the output shaft gear 127 disappear, and the electromagnet core 122 is driven to bounce upwards under the elastic force of the tower spring 123, so as to drive the clutch shaft 124 and the clutch gear 125 to move upwards, thereby the gear 125 to successfully separate the gears, and realize the function of preventing pinch.

When the clutch is disconnected, the electromagnet core 122 is in a sprung state under the action of the spring force of the tower spring 123, the electromagnet core 122 is linked with the clutch shaft 124 and the clutch gear 125 to be in the sprung state, and at the moment, the clutch gear 125 and the output shaft gear 127 are not meshed, the output clutch is not affected by the reduction gear mechanism 16, so that the output shaft 17 can rotate freely.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an automatic switch door ware of automatic separation and reunion, includes switch door ware (1), door frame (2) and the door body (3), and through hinge interconnect between door frame (2) and the door body (3), and open or be closed its characterized in that through switch door ware (1) between door frame (2) and the door body (3) each other: the door opening and closing device (1) is composed of a shell (11), a clutch gear mechanism (12), a link mechanism (13), a circuit board (14), a motor (15), a reduction gear mechanism (16), an output shaft (17) and an angle encoder (18), wherein the shell (11) is fixedly connected to the surface of a door frame (2) through bolts, the circuit board (14) and the motor (15) are fixed inside the shell (11) through screws, and the reduction gear mechanism (16) is fixed at the input end of the motor (15); one side inside the door opening and closing device (1) is rotatably connected with an output shaft (17) through a bearing, and the bottom end of the output shaft (17) penetrates through the shell (11) and is fixed with a connecting rod mechanism (13); the door opening and closing device (1) is further internally provided with a clutch gear mechanism (12) for clutch, and an angle encoder (18) for detection is fixed on the surface of the clutch gear mechanism (12).

2. The automatic door closer of claim 1, wherein: the clutch gear mechanism (12) comprises an electromagnet (121), an electromagnet core (122), a tower spring (123), a clutch shaft (124), a clutch gear (125), a speed reducer output gear (126) and an output shaft gear (127), wherein the electromagnet (121) is located inside the shell (11), the electromagnet core (122) capable of moving up and down is connected inside the electromagnet (121), and the top end of the electromagnet core (122) extends into the electromagnet (121) and is sleeved with the tower spring (123).

3. The automatic clutch automatic door closer according to claim 2, wherein: a clutch shaft (124) is fixed at the bottom end of the electromagnet core (122), a clutch gear (125) is fixed on the surface of the clutch shaft (124), the reducer output gear (126) is rotatably connected to the surface of the shell (11), the reducer output gear (126) is meshed with the reduction gear mechanism (16), in addition, in a non-disconnection state, the reducer output gear (126) is meshed with the clutch gear (125), and each tooth of the reducer output gear (126) is provided with an inverted C angle (1261).

4. The automatic clutch automatic door closer according to claim 3, wherein: an output shaft gear (127) is rotationally connected to the surface of the shell (11) on one side of the clutch gear (125), and the output shaft gear (127) is fixedly connected to the surface of the output shaft (17).

5. The automatic clutch door closer according to claim 1, wherein: link mechanism (13) inside including linking arm (131), mount pad (132), regulation screw section of thick bamboo (133) and adjusting screw (134), linking arm (131) fixed connection is on the surface of output shaft (17), and the other end of linking arm (131) articulates there is adjusting screw (134).

6. The automatic clutch door closer according to claim 5, wherein: the mounting seat (132) is mounted on the surface of the door body (3) through bolts, the surface of the mounting seat (132) is hinged with an adjusting screw cylinder (133), and the adjusting screw cylinder (133) is in threaded fastening connection with an adjusting screw rod (134).