Swing gate with infrared anti-pinch protection function
By setting a clutch assembly between the rotating shaft of the swing gate and the output end of the drive part, the non-friction damping effect of the active disc and the driven disc is solved, and the problem of anti-clip of the swing gate in the prior art is easily caused by wear and looseness, achieving a more efficient anti-clip and rapid reset effect.
Patent Information
- Application Number
- CN202421120489.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-22
AI Technical Summary
When the existing swing gates use damping transmission to prevent clamping, it is easy to cause wear and looseness of the swing gate, which will lose the inspection and issuance function.
A swing gate with infrared anti-clip protection is designed, and a clutch assembly is provided between the rotating shaft and the output end of the drive portion, including an active disk and a driven disk that are fitted to each other, and a torsion spring and an elastic engaging portion are provided between the active disk and the driven disk, forming a non-friction damping effect.
It effectively reduces the wear between the swing shaft and the driving part of the external force impact on the lower gate, and quickly resets after the external force dissipates, improving the anti-clip effect and use efficiency of the swing gate.
Smart Images
Figure CN222594681U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of swing gates, in particular to a swing gate with infrared anti-pinch protection. Background Art
[0002] Swing gates, generally known as flapping doors in the rail transit industry, are mainly used for channel entrance and exit management. Usually, only people are allowed to pass through in the application places. They are composed of a main box and two movable swing arms. The swing arms can swing 180° or 90° to achieve the purpose of dissuasion or release. In actual use, due to human operating errors or machine failures, people are often pinched by the swing arms. Therefore, anti-pinch of swing gates has always been a key problem.
[0003] The authorization announcement number is CN218932943U, which is an infrared anti-entrapment swing gate with a reset function. It includes a box, a gate swing, a first motor, a second motor, and a spring, an extrusion ring and a connecting block are arranged between the second motor and the gate swing to form a damping transmission connection. The principle is: when the gate swing is hit by an external force and the external impact force is greater than the fixed friction force between the extrusion ring and the connecting block pushed by the spring, the gate swing will perform local rotation and movement through the bearing along the direction of the external impact force, separating it from the output shaft of the reducer, which can effectively prevent the gate swing from bending and damaging the internal power mechanism.
[0004] However, the applicant found that although the above-mentioned damping transmission method can reduce the risk of pedestrians being pinched by the swing arm to a certain extent, as the use time increases, the extrusion ring and the connecting block are prone to wear, which will cause the rotation of the gate swing to loosen over time and is very easy to be accidentally knocked open, which does not play a good inspection and release role. Utility Model Content
[0005] The purpose of the utility model is to provide a swing gate with infrared anti-pinch protection to solve the technical problem raised by the above background technology that the swing gates on the market currently use damping transmission to prevent pinching, which easily causes the gate swing to wear and further leads to the loosening of the gate swing.
[0006] To achieve the above purpose, the utility model provides the following technical solution: a swing gate with infrared anti-pinch protection, comprising:
[0007] A main box and a gate swing provided with a rotating shaft, wherein the rotating shaft is rotatably connected to the main box;
[0008] A driving unit for driving the gate pendulum to swing;
[0009] An infrared detection component that controls the drive unit to close the gate swing after detecting a pedestrian passing through the gate swing;
[0010] The swing gate further includes a clutch assembly arranged between the output end of the driving part and the rotating shaft, so that when the gate swing is hit by an external force, the output end is temporarily disconnected from the rotating shaft, and the output end and the rotating shaft are reset after the external force dissipates, and the clutch assembly includes:
[0011] An active disk connected to the output end of the driving unit;
[0012] A driven disc connected to the rotating shaft;
[0013] A reset member disposed between the active disk and the driven disk;
[0014] At least one engaging portion is used to limit the rotation between the driving disk and the driven disk after the rotating shaft is aligned with the output end of the driving portion.
[0015] As a preferred technical solution of the utility model, the driving unit includes:
[0016] The motor is arranged in an inner cavity opened in the main housing;
[0017] A reduction gearbox in which one output portion is connected to the output shaft of the motor, and another output portion of the reduction gearbox is connected to the driving disk.
[0018] As a preferred technical solution of the utility model, a connecting shaft is connected to the lower end of the driven disk, and the connecting shaft is rotatably matched with a movable groove provided in the active disk.
[0019] As a preferred technical solution of the present utility model, the reset member is a torsion spring.
[0020] As a preferred technical solution of the utility model, the engaging portion includes:
[0021] A column with a ball bearing at the bottom end, the column being movably arranged in an inner groove formed in the driven disc;
[0022] A spring is arranged in the inner groove, the spring is connected to the column, and the ball is engaged with a slot provided in the active disk.
[0023] As a preferred technical solution of the utility model, an electric telescopic rod is arranged between the rotating shaft and the driven disk.
[0024] As a preferred technical solution of the utility model, a limiting block is provided on the side where the driven disk is in contact with the active disk, and the limiting block is slidably matched with the arc groove provided on the active disk.
[0025] Compared with the prior art, the beneficial effects of the utility model are:
[0026] The utility model arranges a clutch assembly between the rotating shaft and the output end of the driving part. The clutch assembly includes an active disk and a driven disk that fit together, and a torsion spring and an elastic clamping part are arranged between the active disk and the driven disk to form a non-friction damping effect. The utility model can effectively reduce the wear between the rotating shaft and the driving part when an external force impacts the gate pendulum, and after the external impact force dissipates, the torsion spring can drive the gate pendulum to reset quickly, without the need for staff to restart the motor for reset, and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the external three-dimensional structure of the utility model;
[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the main chassis of the utility model;
[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the active disk and the driven disk of the utility model;
[0030] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;
[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the active disk of the utility model.
[0032] In the figure: 1. main case; 2. rotating shaft; 3. gate swing; 4. inner cavity; 5. motor; 6. reduction box; 7. driving disk; 8. driven disk; 9. connecting shaft; 10. movable groove; 11. torsion spring; 12. inner groove; 13. column; 14. spring; 15. slot; 16. limit block; 17. arc slot; 18. electric telescopic rod; 19. infrared detection component. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0034] See also Figure 1-Figure 5 The utility model provides a technical solution: a swing gate with infrared anti-pinch protection, comprising: a main box 1 and a gate swing 3 provided with a rotating shaft 2, the rotating shaft 2 is rotatably connected to the main box 1; a driving part for driving the gate swing 3 to swing; an infrared detection member 19 for controlling the driving part to close the gate swing 3 after detecting that a pedestrian passes through the gate swing 3; in this embodiment, the driving part comprises: a motor 5, which is arranged in an inner cavity 4 opened in the main box 1; a reduction box 6 in which one output part is connected to the output shaft of the motor 5, and the other output part of the reduction box 6 is connected to the active disk 7;
[0035] The adoption of the above technical solution can ensure that the swing gate can detect and release pedestrians. When the pedestrian presents relevant documents, the motor 5 drives the active disk 7 to rotate through the reduction gearbox 6, the active disk 7 drives the driven disk 8 to rotate, the driven disk 8 drives the rotating shaft 2 connected thereto to rotate, and the rotating shaft 2 drives the gate swing 3 to open, thereby releasing the pedestrian. When the infrared detection element 19 detects that the pedestrian has completely passed through the main box 1, the gate swing 3 is controlled to close again through the motor 5 and the reduction gearbox 6.
[0036] like Figure 2 and Figure 3 As shown, the swing gate further includes a clutch assembly arranged between the output end of the driving part and the rotating shaft 2, so that when the gate swing 3 is hit by an external force, the output end is temporarily disconnected from the rotating shaft 2, and the output end and the rotating shaft 2 are reset after the external force dissipates. The clutch assembly includes: an active disk 7 connected to the output end of the driving part; a driven disk 8 connected to the rotating shaft 2; a reset member arranged between the active disk 7 and the driven disk 8; in this embodiment, a connecting shaft 9 is connected to the lower end of the driven disk 8, and the connecting shaft 9 is rotatably matched with a movable groove 10 provided in the active disk 7, and the reset member is a torsion spring 11;
[0037] like Figure 4 and Figure 5 As shown, the swing gate further includes at least one engaging portion, which is used to limit the rotation between the active disk 7 and the driven disk 8 after the rotating shaft 2 is aligned with the output end of the driving portion; in this embodiment, the engaging portion includes: a column 13 with a ball at the bottom end, the column 13 is movably arranged in the inner groove 12 opened in the driven disk 8; a spring 14 is arranged in the inner groove 12, the spring 14 is connected to the column 13, and the ball is engaged with the engaging groove 15 opened in the active disk 7;
[0038] The adoption of the above technical solution can ensure that the device has an anti-pinch function while reducing the wear of the device. When the pedestrian makes an operational error or the infrared detection component 19 fails, the device can prevent the gate swing 3 from pinching the pedestrian. The specific principle is: when the pedestrian's impact force on the gate swing 3 is greater than the torsion of the torsion spring 11 and the resistance between the ball and the slot 15, since the active disk 7 is fixed, the driven disk 8 will rotate relative to the active disk 7, and the connection between the driven disk 8 and the active disk 7 will be disconnected, so that the column 13 pops out of the slot 15. , the rotation restriction between the driven disk 8 and the active disk 7 is released, and the driven disk 8 drives the rotating shaft 2 connected to it to rotate, so that the gate swing 3 is forced to open to let the pedestrians pass, preventing the gate swing 3 from pinching the pedestrians. When the pedestrian loses contact with the gate swing 3, the gate swing 3 loses external force. At this time, the torsion spring 11 drives the driven disk 8 to automatically reset. When the driven disk 8 is aligned with the active disk 7, the spring 14 pushes the ball of the column 13 to re-enter the card slot 15, so that the active disk 7 and the driven disk 8 are connected again, and the gate swing 3 is closed again and resumes normal use.
[0039] Further, such as Figure 3 As shown, an electric telescopic rod 18 is provided between the rotating shaft 2 and the driven disc 8;
[0040] The above technical solution can be used to adjust the damping force between the driven disk 8 and the active disk 7 as needed. When the electric telescopic rod 18 pushes the driven disk 8 downward, the gap between the driven disk 8 and the active disk 7 is reduced. At this time, the compression degree of the spring 14 is increased, thereby increasing the damping force between the driven disk 8 and the active disk 7.
[0041] Further, such as Figure 4 and Figure 5 As shown, a limit block 16 is provided on one side of the driven disk 8 that is in contact with the active disk 7, and the limit block 16 is slidably matched with an arc groove 17 provided on the active disk 7;
[0042] The above technical solution can prevent the gate pendulum 3 from rotating too much when the driven disk 8 is hit, thereby causing the gate pendulum 3 to collide with the main chassis 1.
[0043] Working principle: When in use, after the pedestrian presents the relevant certificate, the motor 5 drives the active disk 7 to rotate through the reduction box 6, the active disk 7 drives the driven disk 8 to rotate, the driven disk 8 drives the rotating shaft 2 connected thereto to rotate, the rotating shaft 2 drives the gate swing 3 to open, thereby releasing the pedestrian. When the infrared detection component 19 detects that the pedestrian has completely passed through the main box 1, the gate swing 3 is controlled by the motor 5 and the reduction box 6 to close again; when the pedestrian makes an operational error or the infrared detection component 19 fails, the device can prevent the gate swing 3 from pinching the pedestrian. The specific principle is: when the pedestrian's impact force on the gate swing 3 is greater than the torsion of the torsion spring 11 and the resistance between the ball and the slot 15, since the active disk 7 is fixed , the driven disk 8 will rotate relative to the active disk 7, and the connection between the driven disk 8 and the active disk 7 will be disconnected, so that the column 13 will pop out from the slot 15, and the rotation restriction between the driven disk 8 and the active disk 7 will be released. The driven disk 8 drives the rotating shaft 2 connected to it to rotate, so that the gate swing 3 is forced to open to release pedestrians and prevent the gate swing 3 from pinching pedestrians. When the pedestrian loses contact with the gate swing 3, the gate swing 3 loses external force. At this time, the torsion spring 11 drives the driven disk 8 to automatically reset. When the driven disk 8 is aligned with the active disk 7, the spring 14 pushes the ball of the column 13 to re-enter the slot 15, so that the active disk 7 and the driven disk 8 are connected again, and the gate swing 3 is closed again and resumes normal use.
[0044] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A swing gate with infrared anti-pinch protection, comprising: A main box (1) and a gate swing (3) provided with a rotating shaft (2), wherein the rotating shaft (2) is rotatably connected to the main box (1); A driving unit for driving the gate pendulum (3) to swing; An infrared detection element (19) controls the drive unit to close the gate swing (3) after detecting that a pedestrian has passed through the gate swing (3); The swing gate is characterized in that the swing gate further comprises a clutch assembly arranged between the output end of the driving part and the rotating shaft (2), so that when the gate swing (3) is impacted by an external force, the output end is temporarily disconnected from the rotating shaft (2), and the output end and the rotating shaft (2) are reset after the external force dissipates, and the clutch assembly comprises: An active disk (7) connected to the output end of the driving unit; A driven disc (8) connected to the rotating shaft (2); A reset member provided between the active disk (7) and the driven disk (8); At least one engaging portion, the engaging portion being used to limit the rotation between the active disk (7) and the driven disk (8) after the rotating shaft (2) is aligned with the output end of the driving portion.
2. The swing gate with infrared anti-pinch protection according to claim 1 is characterized in that: The driving unit comprises: A motor (5) disposed in an inner cavity (4) opened in the main housing (1); A reduction box (6) having one output portion connected to an output shaft of a motor (5), and another output portion of the reduction box (6) connected to a driving disk (7).
3. The swing gate with infrared anti-pinch protection according to claim 1 is characterized in that: The lower end of the driven disk (8) is connected to a connecting shaft (9), and the connecting shaft (9) is rotatably engaged with a movable groove (10) provided in the driving disk (7).
4. The swing gate with infrared anti-pinch protection according to claim 3 is characterized in that: The reset element is a torsion spring (11).
5. The swing gate with infrared anti-pinch protection according to claim 1 is characterized in that: The engaging portion comprises: A column (13) with a ball bearing is arranged at the bottom end, and the column (13) is movably arranged in an inner groove (12) provided in the driven disk (8); A spring (14) is disposed in the inner groove (12), the spring (14) being connected to the column (13), and the ball bearing being engaged with a slot (15) provided in the active disk (7).
6. The swing gate with infrared anti-pinch protection according to claim 5, characterized in that: An electric telescopic rod (18) is provided between the rotating shaft (2) and the driven disk (8).
7. The swing gate with infrared anti-pinch protection according to claim 1, characterized in that: A limit block (16) is provided on one side of the driven disk (8) that is in contact with the driving disk (7), and the limit block (16) is slidably matched with an arc groove (17) provided on the driving disk (7).