Steel cleanroom door anti-pinch safety protection structure

Abstract

This utility model relates to the field of steel door technology and discloses a safety protection structure for preventing hand pinching in steel cleanroom doors. The structure includes a door frame, a support frame fixedly connected to the top of the door frame, a motor fixedly connected inside the support frame, an elliptical wheel fixedly connected to the drive end of the motor, a sliding shaft fixedly connected to the top of the elliptical wheel, a connecting rod slidably connected to the outer wall of the sliding shaft, a fixed shaft rotatably connected to the inner wall of the connecting rod, a rotating block fixedly connected to the outer wall of the fixed shaft, and a rotating shaft rotatably connected to the top of the rotating block. In this utility model, an infrared sensor controls the motor to drive the elliptical wheel to rotate, stopping the cleanroom door from rotating and causing it to rotate outwards. When an object moves away from the vicinity of the cleanroom door, the motor reverses, the sliding shaft slides to the end of the groove, and the connecting rod drives the rotating block to reset, achieving the anti-pinch function. This structure also provides safety protection; even when the door is stopped, it can still rotate in the opposite direction to prevent objects from getting stuck, thus improving the protection level.

Description

Technical Field

[0001] This utility model relates to the field of steel door technology, and in particular to a safety protection structure for preventing hand pinching in steel cleanroom doors. Background Technology

[0002] The steel cleanroom door anti-pinch safety protection structure is designed with sensors, buffer devices, and other features to prevent personnel from being pinched when the door closes, ensuring safety and preventing personal injury and equipment damage caused by hand-pinch accidents. At the same time, the structure is compatible with the sealing and dustproof functions of the cleanroom door, avoiding any impact on cleanroom environmental standards due to safety design, improving reliability and compliance, and meeting the dual requirements of modern cleanroom spaces for safety and functionality.

[0003] The steel cleanroom door's anti-pinch structure works in conjunction with sensors and a buffer device. The sensors monitor the area near the door in real time. When a person or object is detected approaching, a signal is immediately sent to the control system. If the pressure sensor strip on the door edge comes into contact with an object, it will also trigger an electrical signal. At the same time, the buffer damping device inside the door frame or door panel is activated, which slows down the closing speed through elastic materials or damping structures to avoid pinching injuries and ensure both safety protection and sealing performance in a clean environment.

[0004] In existing technologies, some steel cleanroom door anti-pinch safety protection structures completely lock the door after the anti-pinch mechanism is triggered. If an object remains stuck, it cannot be manually freed. Therefore, this steel cleanroom door anti-pinch safety protection structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a steel cleanroom door anti-pinch safety protection structure, which aims to improve the problem in the prior art where objects are continuously stuck, making it impossible to manually free them.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The steel cleanroom door anti-pinch safety protection structure includes a door frame, a support frame fixedly connected to the top of the door frame, a motor fixedly connected inside the support frame, an elliptical wheel fixedly connected to the drive end of the motor, a sliding shaft fixedly connected to the top of the elliptical wheel, a connecting rod slidably connected to the outer wall of the sliding shaft, a fixed shaft rotatably connected to the inner wall of the connecting rod, a rotating block fixedly connected to the outer wall of the fixed shaft, a rotating shaft rotatably connected to the top of the rotating block, a ratchet tooth slidably connected to the inner wall of the rotating block, a return spring fixedly connected to the outer wall of the ratchet tooth, and the outer wall of the return spring fixedly connected to the inner wall of the rotating block. A control module is installed on the top of the door frame, a wire is fixedly connected to the outer wall of the control module, an infrared sensor is fixedly connected to the other end of the wire, and an adjustment component for adjusting the infrared sensor is installed on the outer wall of the door frame.

[0008] As a further description of the above technical solution:

[0009] The adjustment assembly includes a door frame, a slide rail fixedly connected to the outer wall of the door frame, a retaining strip fixedly connected to the inner wall of the slide rail, a slide plate slidably connected to the inner wall of the slide rail, a push rod slidably connected to the inner wall of the slide plate, a slide bar fixedly connected to the inner wall of the push rod, a slider slidably connected to the outer wall of the slide bar, a groove provided on the inner wall of the slider, a connecting rod fixedly connected to the outer wall of the slider, a support spring sleeved on the outer wall of the connecting rod, and a retaining tooth fixedly connected to the other end of the connecting rod.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the connecting rod is provided with a sliding groove, the outer wall of the sliding shaft is slidably connected to the inner wall of the sliding groove, and the outer wall of the elliptical wheel is in contact with the outer wall of the rotating block;

[0012] As a further description of the above technical solution:

[0013] A rotating rod is rotatably connected to the inner wall of the door frame, an inner ratchet is fixedly connected to the outer wall of the rotating rod, and a cleanroom door is fixedly connected to the outer wall of the rotating rod.

[0014] As a further description of the above technical solution:

[0015] The other end of the shaft is fixedly connected to the outer wall of the motor, and the inner wall of the inner ratchet contacts the outer wall of the ratchet teeth;

[0016] As a further description of the above technical solution:

[0017] The control module is externally fixedly connected to another wire, the other end of which is fixedly connected to the outer wall of the motor.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the slide rod is slidably connected to the inner wall of the inclined groove, and the outer wall of the connecting rod is slidably connected to the inner wall of the slide plate;

[0020] As a further description of the above technical solution:

[0021] The outer wall of the tooth contacts the outer wall of the strip, and the outer wall of the slide is mounted on the outer wall of the infrared sensor.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when the cleanroom door is protected against pinching, the infrared sensor controls the motor to drive the elliptical wheel to rotate, causing the cleanroom door to stop rotating and rotate outward. When an object moves away from the vicinity of the cleanroom door, the motor reverses, the sliding shaft slides to the end of the slide groove, and the connecting rod drives the rotating block to reset, thus realizing the anti-pinch function. This structure also has safety protection features; the door can still rotate in the opposite direction when it stops to prevent objects from getting stuck on the door, thereby improving the protection level.

[0024] 2. In this utility model, when it is necessary to adjust the position of the infrared sensor, pressing the push rod drives the slide rod to slide horizontally in the inclined groove, thereby pushing the slider to move upward. The connecting rod disengages the locking teeth from the locking strip. At this time, the sliding plate can be slid to adjust the position. After releasing the push rod, the reset spring resets the locking teeth and engages with the locking strip to fix them, thereby realizing the adjustment of the sensor position. This mechanism is easy to operate and maintain. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the anti-pinch safety protection structure for steel cleanroom doors proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the rotating rod of the anti-pinch safety protection structure for steel cleanroom doors proposed in this utility model;

[0027] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0029] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0030] Figure 6 This is a schematic diagram of the sliding plate structure of the anti-pinch safety protection structure for steel cleanroom doors proposed in this utility model.

[0031] Legend:

[0032] 1. Door frame; 2. Support frame; 3. Motor; 4. Elliptical wheel; 5. Sliding shaft; 6. Connecting rod; 7. Slide groove; 8. Fixed shaft; 9. Rotating block; 10. Rotating shaft; 11. Ratchet tooth; 12. Return spring; 13. Rotating rod; 14. Inner ratchet; 15. Control module; 16. Wire; 17. Infrared sensor; 18. Slide rail; 19. Locking bar; 20. Slide plate; 21. Push rod; 22. Slide rod; 23. Slider; 24. Inclined groove; 25. Connecting rod; 26. Support spring; 27. Locking tooth; 28. Cleanroom door. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a steel cleanroom door anti-pinch safety protection structure, including a door frame 1, which provides an installation environment for the cleanroom door 28. A support frame 2 is fixedly connected to the top of the door frame 1, providing an installation environment for subsequent parts. A motor 3 is fixedly connected inside the support frame 2, providing kinetic energy to an elliptical wheel 4. The drive end of the motor 3 is fixedly connected to the elliptical wheel 4, which pushes a rotating block 9. A sliding shaft 5 is fixedly connected to the top of the elliptical wheel 4, which drives a connecting rod 6 to return to its original position. A connecting rod 6 is slidably connected to the outer wall of the sliding shaft 5, which connects the fixed shaft 8 and the sliding shaft 9. 5. A fixed shaft 8 is rotatably connected to the inner wall of the connecting rod 6, which connects the connecting rod 6 and the fixed shaft 8. A rotating block 9 is fixedly connected to the outer wall of the fixed shaft 8, which provides an installation environment for subsequent connections. A rotating shaft 10 is rotatably connected to the top of the rotating block 9, which provides a motion environment for the rotating block 9. A ratchet tooth 11 is slidably connected to the inner wall of the rotating block 9, which engages the inner ratchet 14. A return spring 12 is fixedly connected to the outer wall of the ratchet tooth 11, which provides a motion environment for the unidirectional rotation of the inner ratchet 14 and the ratchet tooth 11. The outer wall of the return spring 12 is fixedly connected to the inner wall of the rotating block 9.

[0035] A control module 15 is installed on the top of the door frame 1. The control module 15 receives the signal from the infrared sensor 17 and sends a signal to the motor 3. A wire 16 is fixedly connected to the outer wall of the control module 15. The wire 16 transmits the signal from the infrared sensor 17 to the control module 15. The other end of the wire 16 is fixedly connected to the infrared sensor 17. The infrared sensor 17 sends a signal. An adjustment component for adjusting the infrared sensor 17 is installed on the outer wall of the door frame 1.

[0036] The inner wall of the connecting rod 6 is provided with a groove 7, which provides a motion environment for the sliding shaft 5. The outer wall of the sliding shaft 5 is slidably connected to the inner wall of the groove 7. The outer wall of the elliptical wheel 4 is in contact with the outer wall of the rotating block 9. The inner wall of the door frame 1 is rotatably connected to the rotating rod 13, which drives the inner ratchet 14 to rotate. The outer wall of the rotating rod 13 is fixedly connected to the inner ratchet 14. When the inner ratchet 14 meshes with the ratchet teeth 11, the clean door 28 can only rotate outward and cannot rotate in the closing direction. The outer wall of the rotating rod 13 is fixedly connected to the clean door 28, which drives the rotating rod 13 to rotate. The other end of the rotating shaft 10 is fixedly connected to the outer wall of the motor 3. The inner wall of the inner ratchet 14 is in contact with the outer wall of the ratchet teeth 11. The control module 15 is fixedly connected to another wire 16, which transmits the signal of the control module 15 to the motor 3. The other end of the other wire 16 is fixedly connected to the outer wall of the motor 3.

[0037] Reference Figure 2 , Figure 5 and Figure 6 The adjustment assembly includes a door frame 1. A slide rail 18 is fixedly connected to the outer wall of the door frame 1, providing a sliding environment for the slide plate 20. A locking strip 19 is fixedly connected to the inner wall of the slide rail 18. The locking strip 19 cooperates with the locking teeth 27 to control the position of the slide plate 20. The slide plate 20 is slidably connected to the inner wall of the slide rail 18, providing an installation environment for subsequent parts. A push rod 21 is slidably connected to the inner wall of the slide plate 20, acting as a power source to drive the slide rod 22 to slide. The slide rod 22 is fixedly connected to the inner wall of the push rod 21, causing the slider 23 to slide upwards. The sliding rod 22 is slidably connected to the outer wall of the sliding rod 22, and the sliding rod 23 drives the connecting rod 25 to slide. The inner wall of the sliding rod 23 is provided with a groove 24, which provides a motion environment for the sliding rod 22 and the sliding rod 23. The outer wall of the sliding rod 23 is fixedly connected to the connecting rod 25, and the connecting rod 25 drives the locking tooth 27 to slide. The outer wall of the connecting rod 25 is fitted with a support spring 26, which fixes the locking tooth 27 on the locking strip 19. The other end of the connecting rod 25 is fixedly connected to the locking tooth 27, and the locking tooth 27 cooperates with the locking strip 19 to control the position of the sliding plate 20.

[0038] The outer wall of the slide rod 22 is slidably connected to the inner wall of the inclined groove 24, the outer wall of the connecting rod 25 is slidably connected to the inner wall of the slide plate 20, the outer wall of the locking tooth 27 is in contact with the outer wall of the locking strip 19, and the outer wall of the slide plate 20 is installed on the outer wall of the infrared sensor 17.

[0039] Working principle: When the cleanroom door is in anti-pinch mode, the infrared sensor 17 detects an object and sends a signal to the control module 15 via the wire 16. The control module 15 drives the motor 3 via the wire 16, and the motor 3 drives the elliptical wheel 4 to rotate. When the elliptical wheel 4 rotates 90 degrees, it pushes the rotating block 9 to rotate, thereby causing the ratchet tooth 11 to rotate and engage with the inner ratchet 14, thus stopping the cleanroom door 28 from rotating. When the door is rotated outward, the ratchet tooth 11 slides on the inner wall of the rotating block 9 on the inclined surface of the inner ratchet 14, and the return spring 12 resets the ratchet tooth 11. When the object moves away from the vicinity of the cleanroom door 28, the motor 3 reverses, and the sliding shaft 5 slides to the end of the slide groove 7, thereby causing the connecting rod 6 to drive the rotating block 9 to reset, thus achieving the purpose of anti-pinch. This structure also has safety protection. When the door stops moving, the cleanroom door 28 can still rotate in the opposite direction to prevent objects from getting stuck, thus improving the protection level.

[0040] When the position of the infrared sensor 17 needs to be adjusted, press the push rod 21, which will cause the slide rod 22 to slide horizontally. The slide rod 22 slides in the inclined groove 24, which will cause the slider 23 to slide upward, thereby causing the connecting rod 25 to slide. The connecting rod 25 will cause the locking tooth 27 to slide, thereby disengaging the locking tooth 27 from the locking strip 19. At this time, slide the sliding plate 20 to adjust the position of the sliding plate 20. When the push rod 21 is released, the return spring 12 will reset the locking tooth 27 and cooperate with the locking strip 19 to achieve a fixed effect. This achieves the purpose of adjusting the position of the infrared sensor 17. This mechanism is easy to operate and maintain.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel cleanroom door anti-pinch safety protection structure, including a door frame (1), characterized in that: A support frame (2) is fixedly connected to the top of the door frame (1). A motor (3) is fixedly connected inside the support frame (2). An elliptical wheel (4) is fixedly connected to the drive end of the motor (3). A sliding shaft (5) is fixedly connected to the top of the elliptical wheel (4). A connecting rod (6) is slidably connected to the outer wall of the sliding shaft (5). A fixed shaft (8) is rotatably connected to the inner wall of the connecting rod (6). A rotating block (9) is fixedly connected to the outer wall of the fixed shaft (8). A rotating shaft (10) is rotatably connected to the top of the rotating block (9). The inner wall of the rotating block (9) is slidably connected to a ratchet tooth (11), and the outer wall of the ratchet tooth (11) is fixedly connected to a return spring (12). The outer wall of the return spring (12) is fixedly connected to the inner wall of the rotating block (9). A control module (15) is installed on the top of the door frame (1). A wire (16) is fixedly connected to the outer wall of the control module (15). An infrared sensor (17) is fixedly connected to the other end of the wire (16). An adjustment component for adjusting the infrared sensor is installed on the outer wall of the door frame (1).

2. The anti-pinch safety protection structure for steel cleanroom doors according to claim 1, characterized in that: The adjustment assembly includes a door frame (1), with a slide rail (18) fixedly connected to the outer wall of the door frame (1), a retaining strip (19) fixedly connected to the inner wall of the slide rail (18), a sliding plate (20) slidably connected to the inner wall of the slide rail (18), a push rod (21) slidably connected to the inner wall of the sliding plate (20), a slide rod (22) fixedly connected to the inner wall of the push rod (21), a slider (23) slidably connected to the outer wall of the slide rod (22), a groove (24) provided on the inner wall of the slider (23), a connecting rod (25) fixedly connected to the outer wall of the slider (23), a support spring (26) sleeved on the outer wall of the connecting rod (25), and a retaining tooth (27) fixedly connected to the other end of the connecting rod (25).

3. The anti-pinch safety protection structure for steel cleanroom doors according to claim 1, characterized in that: The inner wall of the connecting rod (6) is provided with a groove (7), the outer wall of the sliding shaft (5) is slidably connected to the inner wall of the groove (7), and the outer wall of the elliptical wheel (4) is in contact with the outer wall of the rotating block (9).

4. The anti-pinch safety protection structure for steel cleanroom doors according to claim 1, characterized in that: The inner wall of the door frame (1) is rotatably connected to a rotating rod (13), the outer wall of the rotating rod (13) is fixedly connected to an inner ratchet (14), and the outer wall of the rotating rod (13) is fixedly connected to a clean door (28).

5. The anti-pinch safety protection structure for steel cleanroom doors according to claim 4, characterized in that: The other end of the rotating shaft (10) is fixedly connected to the outer wall of the motor (3), and the inner wall of the inner ratchet (14) is in contact with the outer wall of the ratchet tooth (11).

6. The anti-pinch safety protection structure for steel cleanroom doors according to claim 1, characterized in that: The control module (15) is externally fixedly connected to another wire (16), and the other end of the other wire (16) is fixedly connected to the outer wall of the motor (3).

7. The anti-pinch safety protection structure for steel cleanroom doors according to claim 2, characterized in that: The outer wall of the slide rod (22) is slidably connected to the inner wall of the inclined groove (24), and the outer wall of the connecting rod (25) is slidably connected to the inner wall of the slide plate (20).

8. The anti-pinch safety protection structure for steel cleanroom doors according to claim 2, characterized in that: The outer wall of the tooth (27) is in contact with the outer wall of the strip (19), and the outer wall of the slide plate (20) is mounted on the outer wall of the infrared sensor (17).

Images