Anti-pinch device and processing equipment

Abstract

The application relates to the technical field of sliding door anti-pinch technology, and particularly provides an anti-pinch device and processing equipment. The anti-pinch device comprises a driving assembly connected to a first door frame and connected with a sliding door, the driving assembly is used for driving the sliding door to be close to or away from a second door frame; a connecting assembly is arranged on one side of the second door frame close to the first door frame; an anti-pinch strip is connected to the connecting assembly and is arranged in a spaced mode with the second door frame, the anti-pinch strip can be close to or away from the second door frame, the anti-pinch strip is arranged in a staggered mode with the sliding door; and an induction assembly comprises an inductor, the inductor is connected to the second door frame and is arranged in a mode opposite to one side of the anti-pinch strip close to the second door frame, the inductor is electrically connected with the driving assembly, and the inductor is used for sending a signal when the anti-pinch strip moves along a first direction and abuts against the inductor, so that the driving assembly drives the sliding door to be away from the second door frame. The processing equipment comprises a processing machine table and the anti-pinch device. The anti-pinch device and the processing equipment can avoid that the sliding door pinches an operator.

Description

Technical Field

[0001] This application relates to the field of anti-pinch technology for sliding doors, specifically to an anti-pinch device and processing equipment. Background Technology

[0002] Sliding doors are a common type of door in daily life and the machining industry, offering the advantage of high space utilization. In machining, such as in CNC (Computer Numerical Control) machine tools, sliding doors effectively enclose the machining area, preventing personnel from accidentally entering dangerous areas, while also preventing the leakage of cutting fluid and chips, maintaining a clean working environment. To facilitate operators' adjustments to the CNC machine tool, the sliding door moves away from the control panel when opening and moves closer to the control panel when closing, thus avoiding obstruction of the control panel when open. When operators use the control panel, their hands may easily fall inside the sliding door frame, or when operators need to reach inside the machine tool during maintenance, a closed sliding door could easily trap their hands or body. Utility Model Content

[0003] In view of the above, it is necessary to propose an anti-pinch device and processing equipment to avoid injury to workers from sliding doors.

[0004] This application provides an anti-pinch device applied to a sliding door mechanism. The sliding door mechanism includes a first door frame, a second door frame, and a sliding door. The first door frame and the second door frame are spaced apart along a first direction. The sliding door is slidably connected to the first door frame. The anti-pinch device includes: a drive assembly connected to the first door frame and connected to the sliding door, the drive assembly driving the sliding door to move closer to or away from the second door frame along the first direction; a connecting assembly disposed on the side of the second door frame near the first door frame; an anti-pinch strip connected to the connecting assembly, the anti-pinch strip being spaced apart from the side of the second door frame near the first door frame, the anti-pinch strip being able to move closer to or away from the second door frame under the guidance of the connecting assembly, the anti-pinch strip being offset from the sliding door along a second direction perpendicular to the first direction; and a sensing assembly including a sensor, the sensor being connected to the second door frame and disposed opposite to the side of the anti-pinch strip near the second door frame, the sensor being electrically connected to the drive assembly, the sensor emitting a signal when the anti-pinch strip moves along the first direction and abuts against the sensor, so that the drive assembly drives the sliding door away from the second door frame.

[0005] The aforementioned anti-pinch device, through a drive assembly that opens and closes the sliding door, a connecting assembly that connects the anti-pinch strip to the second door frame, and a sensor connected to the second door frame and positioned opposite the anti-pinch strip on the side of the second door frame, and electrically connected to the drive assembly, allows for effective protection against injury. When the drive assembly closes the sliding door (i.e., moves it towards the second door frame), if a worker's hand or body is positioned between the first and second door frames, the sliding door pushes against the worker's hand or body, causing it to move towards the second door frame. The worker's hand or the drive assembly first contacts the anti-pinch strip, moving it towards the second door frame. When the anti-pinch strip contacts the sensor, the sensor sends a signal to the drive assembly, which then promptly moves the sliding door away from the second door frame, effectively preventing injury from the sliding door pinching the worker. The misalignment between the anti-pinch strip and the sliding door prevents the door from contacting the anti-pinch strip during normal closing, thus avoiding false alarms from the sensor.

[0006] In some embodiments, the sensing component further includes a receiving shell and a sliding member. The receiving shell is connected to the second door frame. The receiving shell has a first receiving hole extending along the first direction. The sliding member is slidably disposed in the first receiving hole along the first direction. The sensor is disposed in the first receiving hole and connected to the sliding member. The end of the sensor near the anti-pinch strip can extend out of the first receiving hole.

[0007] In some embodiments, the sensing component further includes a first elastic member, and a stop portion is provided at one end of the receiving shell away from the anti-pinch strip. The stop portion extends toward the axis of the first receiving hole. The first elastic member is disposed in the first receiving hole, and the two ends of the first elastic member abut against the sliding member and the stop portion, respectively. The first elastic member is used to push the sliding member to move closer to the anti-pinch strip, thereby driving the sensor to move closer to the anti-pinch strip.

[0008] In some embodiments, the sensing component further includes a stop ring disposed on the side of the housing near the anti-pinch strip. The stop ring has a through hole, and the end of the sensor near the anti-pinch strip passes through the through hole. The stop ring is used to prevent the sliding member from moving near the anti-pinch strip.

[0009] In some embodiments, the connecting assembly includes a support sleeve, a sliding rod, and a second elastic member. The support sleeve is connected to the second door frame and has a second receiving hole extending along the first direction. The sliding rod is slidably disposed in the second receiving hole along the first direction and is connected to the anti-pinch strip. The second elastic member is sleeved on the sliding rod, and both ends of the second elastic member abut against the anti-pinch strip and the support sleeve, respectively. The second elastic member is used to push the anti-pinch strip away from the second door frame.

[0010] In some embodiments, the connecting assembly further includes a stop plate connected to one end of the sliding rod away from the anti-pinch strip, and the stop plate is disposed on the side of the support sleeve opposite to the anti-pinch strip, the stop plate being used to abut against the support sleeve to limit the sliding rod.

[0011] In some embodiments, a stepped surface is provided in the second receiving hole, the stepped surface extends radially along the second receiving hole, the radius of the end of the second receiving hole near the anti-pinch strip is greater than the radius of the end away from the anti-pinch strip, and the end of the second elastic member away from the anti-pinch strip is disposed in the second receiving hole and abuts against the stepped surface.

[0012] In some embodiments, multiple connecting components and multiple sensing components are provided. The multiple connecting components are spaced apart in the second door frame along a third direction perpendicular to the first direction and the second direction, and the multiple sensing components are spaced apart in the second door frame along the third direction.

[0013] In some embodiments, the drive assembly includes a drive member and a connector connected to the drive member. The drive member is connected to the first door frame and electrically connected to the sensor. One end of the connector away from the drive member is connected to the sliding door. The drive member is used to drive the connector to reciprocate along the first direction, so as to drive the sliding door to reciprocate along the first direction through the connector.

[0014] This application embodiment also provides a processing device, including: a processing machine table; and the above-mentioned anti-pinch device, wherein the anti-pinch device is disposed on the processing machine table.

[0015] The aforementioned processing equipment, by incorporating the anti-pinch device described in the above embodiment, can prevent the sliding door from pinching and injuring workers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the processing equipment provided in an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the anti-pinch device and sliding door mechanism provided in the embodiments of this application.

[0018] Figure 3 for Figure 2 The anti-pinch device shown is a cross-sectional view along the III-III direction.

[0019] Figure 4 for Figure 3 The diagram shows the structure of the anti-pinch device when the anti-pinch strip moves to its maximum distance near the second door frame.

[0020] Explanation of main component symbols: processing equipment 1000, anti-pinch device 100, drive assembly 10, drive component 11, connector 12, connecting assembly 20, support sleeve 21, second receiving hole 211, stepped surface 212, sliding rod 22, second elastic component 23, stop plate 24, anti-pinch strip 30, sensing assembly 40, sensor 41, receiving shell 42, first receiving hole 421, stop part 422, sliding component 43, first elastic component 44, stop ring 45, through hole 451, sliding door mechanism 200, first door frame 201, second door frame 202, sliding door 203, processing machine table 300. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] The embodiments of this application will be further described below with reference to the accompanying drawings. To facilitate understanding and explanation of the embodiments of this application, a three-dimensional coordinate system is established in some of the drawings, with the X-axis direction as the first direction, the Y-axis direction as the second direction, and the Z-axis direction as the third direction. The X-axis direction, Y-axis direction, and Z-axis direction are perpendicular to each other.

[0025] Please see Figure 1 , Figure 2 and Figure 3 This application provides an anti-pinch device 100, which is applied to a sliding door mechanism 200. The sliding door mechanism 200 includes a first door frame 201, a second door frame 202, and a sliding door 203. The first door frame 201 and the second door frame 202 are spaced apart along a first direction, and the sliding door 203 is slidably connected to the first door frame 201. The sliding door mechanism 200 can be used for welcoming doors, kitchen doors, and any other scenarios requiring the use of a sliding door 203. The first door frame 201 and the second door frame 202 can be independently set door frame structures or the ends of a wall. In this embodiment, the sliding door mechanism 200 is applied to a processing machine 300, which can be a CNC machining equipment 1000, etc. The first door frame 201 and the second door frame 202 can be the housing part of the processing machine 300. The anti-pinch device 100 includes a drive assembly 10, a connecting assembly 20, an anti-pinch strip 30, and a sensing assembly 40.

[0026] Specifically, the drive assembly 10 is connected to the first door frame 201 and the sliding door 203. The drive assembly 10 is used to drive the sliding door 203 to move closer to or away from the second door frame 202 in a first direction. By setting the drive assembly 10, the sliding door 203 can be automatically driven to move closer to or away from the second door frame 202, so as to realize the automatic opening or closing of the sliding door 203.

[0027] Please see also Figure 4 The connecting component 20 is disposed on the side of the second door frame 202 near the first door frame 201. An anti-pinch strip 30 is connected to the connecting component 20, and is spaced apart from the side of the second door frame 202 near the first door frame 201. Guided by the connecting component 20, the anti-pinch strip 30 can move closer to or further away from the second door frame 202. The anti-pinch strip 30 and the sliding door 203 are offset along a second direction perpendicular to the first direction. The sensing component 40 includes a sensor 41, which is connected to the second door frame 202 and opposite to the side of the anti-pinch strip 30 near the second door frame 202. The sensor 41 is electrically connected to the drive component 10. The sensor 41 sends a signal when the anti-pinch strip 30 moves along the first direction and abuts against the sensor 41, causing the drive component 10 to drive the sliding door 203 away from the second door frame 202.

[0028] The anti-pinch strip 30 can be a long strip structure. To improve the anti-pinch effect, the anti-pinch strip 30 can extend along a third direction, and its length can be adapted to the sliding door 203 so that the operator's hand or body is opposite to the anti-pinch strip 30 no matter where it is located in the third direction. The anti-pinch strip 30 is connected to the second door frame 202 through the connecting component 20 and is offset from the sliding door 203 along the second direction, which can prevent the sliding door 203 from contacting the anti-pinch strip 30 when it is closing normally. When the operator's hand or body is between the first door frame 201 and the second door frame 202, the sliding door 203 can push the operator's hand or body to contact the anti-pinch strip 30 during the closing process. When there is no obstacle between the first door frame 201 and the second door frame 202, the sliding door 203 can close normally. In this embodiment, if the sliding door mechanism 200 is mounted on the processing machine table 300, the anti-pinch strip 30 can be mounted inside the processing machine table 300 to prevent the anti-pinch strip 30 from being accidentally touched and causing the sliding door 203 to open when the processing machine table 300 is working. The sensor 41 can be a proximity switch or the like. When the anti-pinch strip 30 moves toward the second door frame 202 under the action of external force, the anti-pinch strip 30 can contact the sensor 41. After the sensor 41 senses the anti-pinch strip 30, it sends a signal to the drive assembly 10, so that the drive assembly 10 drives the sliding door 203 away from the second door frame 202 to prevent the sliding door 203 from pinching and injuring the operator.

[0029] The anti-pinch device 100 provided in this application embodiment can drive the sliding door 203 to open or close by setting the drive assembly 10. The connecting assembly 20 can connect the anti-pinch strip 30 to the second door frame 202. The sensor 41 of the sensing assembly 40 is connected to the second door frame 202 and is arranged opposite to the side of the anti-pinch strip 30 near the second door frame 202, and is electrically connected to the drive assembly 10. When the drive assembly 10 drives the sliding door 203 to close, that is, when it drives the sliding door 203 to move towards the second door frame 202, if the operator's hand or body is located between the first door frame 201 and the second door frame 202, the sliding door 203 pushes the operator's hand or body towards the second door frame 202. The operator's hand or the drive assembly first contacts the anti-pinch strip 30 and drives the anti-pinch strip 30 to move towards the second door frame 202. When the anti-pinch strip 30 comes into contact with the sensor 41, the sensor 41 sends a signal to the drive assembly 10, which then promptly drives the sliding door 203 away from the second door frame 202. This effectively prevents the sliding door 203 from pinching and injuring workers. The anti-pinch strip 30 and the sliding door 203 are misaligned to prevent the sliding door 203 from contacting the anti-pinch strip 30 when it is closing normally, thus preventing false alarms from the sensor 41.

[0030] In some embodiments, see Figure 3 and Figure 4The sensing component 40 also includes a housing 42 and a slider 43. The housing 42 is connected to the second door frame 202 and has a first receiving hole 421 extending in a first direction. The slider 43 is slidably disposed in the first receiving hole 421 in the first direction. The sensor 41 is disposed in the first receiving hole 421 and connected to the slider 43, with one end of the sensor 41 near the anti-pinch strip 30 extending out of the first receiving hole 421. The housing 42 can be a tubular structure, and the slider 43 can be a linear bearing. By providing the housing 42, the sensor 41 can be protected from damage caused by external forces, enhancing its impact resistance and damage prevention capabilities. By providing the slider 43, the movement direction of the sensor 41 can be guided, preventing trigger failure or false triggering caused by sensor misalignment or jamming, ensuring the stability of the anti-pinch function. After the anti-pinch strip 30 contacts the sensor 41, the sensor 41 can slide along the first receiving hole 421 under the pushing action of the anti-pinch strip 30, thus avoiding the rigid contact of the anti-pinch strip 30 with the sensor 41 and causing damage to the sensor 41.

[0031] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The sensing component 40 also includes a first elastic member 44. A stop portion 422 is provided at the end of the housing 42 away from the anti-pinch strip 30. The stop portion 422 extends towards the axis of the first receiving hole 421. The first elastic member 44 is disposed in the first receiving hole 421, and its two ends abut against the sliding member 43 and the stop portion 422, respectively. The first elastic member 44 is used to push the sliding member 43 closer to the anti-pinch strip 30, thereby driving the sensor 41 closer to the anti-pinch strip 30. The first elastic member 44 can be a spring. By providing the first elastic member 44, the sliding member 43 and the sensor 41 can be pushed back to their original positions after the anti-pinch strip 30 moves away from the sensor 41.

[0032] In this way, sensor 41 can extend from housing 42 in the initial state. When anti-pinch strip 30 contacts sensor 41, sensor 41 sends a signal to drive assembly 10, causing drive assembly 10 to drive sliding door 203 away from second door frame 202. However, in actual operation, signal transmission takes time, and the drive assembly 10 also takes time to drive sliding door 203 from moving closer to second door frame 202 to moving away from second door frame 202. If the anti-pinch door stops moving after contacting sensor 41, there is still a risk of sliding door 203 pinching and injuring workers. By pushing sliding member 43 with first elastic member 44, thereby causing sensor 41 to extend from housing 42, anti-pinch strip 30 can continue to move closer to second door frame 202 after contacting sensor 41, until drive assembly 10 drives sliding door 203 away from second door frame 202. After anti-pinch strip 30 is no longer subjected to external force, first elastic member 44 drives sensor 41 to extend from housing 42 for reset. It is understandable that the time it takes for the anti-pinch strip 30 to move close to the second door frame 202 until it comes into contact with the second door frame 202 must be greater than the time it takes for the sensor 41 to send a signal and for the drive assembly 10 to complete the directional drive of the sliding door 203, so as to avoid pinching the workers before the drive assembly 10 drives the sliding door 203 away from the second door frame 202.

[0033] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The sensing component 40 also includes a stop ring 45, which is disposed on the side of the housing 42 near the anti-pinch strip 30. The stop ring 45 has a through hole 451, through which the end of the sensor 41 near the anti-pinch strip 30 passes. The stop ring 45 is used to stop the sliding member 43 from moving near the anti-pinch strip 30. It can be understood that the cross-sectional area of ​​the through hole 451 is larger than the cross-sectional area of ​​the sensor 41, but smaller than the cross-sectional area of ​​the sliding member 43. Thus, by setting the stop ring 45, the sliding member 43 can be stopped when the first elastic member 44 pushes against the sliding member 43 and moves near the anti-pinch strip 30, preventing the sensor 41 from moving excessively and causing the sensor 41 to contact the anti-pinch strip 30 when resetting, thus preventing the sliding door 203 from closing.

[0034] In some embodiments, see Figure 2 , Figure 3 and Figure 4The connecting component 20 includes a support sleeve 21, a sliding rod 22, and a second elastic element 23. The support sleeve 21 is connected to the second door frame 202 and has a second receiving hole 211 extending in a first direction. The sliding rod 22 is slidably disposed in the second receiving hole 211 in the first direction and is connected to the anti-pinch strip 30. The second elastic element 23 is sleeved on the sliding rod 22, and its two ends abut against the anti-pinch strip 30 and the support sleeve 21, respectively. The second elastic element 23 is used to push the anti-pinch strip 30 away from the second door frame 202. The support sleeve 21 is generally tubular, the sliding rod 22 can be columnar, and the second elastic element 23 can be a spring, etc. By providing the support sleeve 21, a sliding base can be provided for the sliding rod 22. By providing the second elastic element 23, the anti-pinch strip 30 can be pushed away from the second door frame 202, so that the anti-pinch strip 30 remains spaced from the second door frame 202 when not being squeezed.

[0035] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The connecting assembly 20 also includes a stop plate 24, which is connected to the end of the sliding rod 22 away from the anti-pinch strip 30. The stop plate 24 is located on the side of the support sleeve 21 opposite to the anti-pinch strip 30 and is used to abut against the support sleeve 21 to limit the sliding rod 22. It can be understood that the outer diameter of the stop plate 24 is larger than the diameter of the second receiving hole 211 of the support sleeve 21. When the second elastic element 23 is at its maximum elongation or subjected to a reverse impact, it can mechanically lock the sliding rod 22 to prevent it from completely dislodging from the support sleeve 21, ensuring that the anti-pinch strip 30 will not fall and injure people or fall into equipment and cause secondary accidents.

[0036] In some embodiments, see Figure 3 and Figure 4 A stepped surface 212 is provided inside the second receiving hole 211. The stepped surface 212 extends radially along the second receiving hole 211. The radius of the end of the second receiving hole 211 near the anti-pinch strip 30 is larger than the radius of the end away from the anti-pinch strip 30. The end of the second elastic member 23 away from the anti-pinch strip 30 is disposed in the second receiving hole 211 and abuts against the stepped surface 212. The stepped surface 212 directly forms an axial seat in the support sleeve 21. One end of the second elastic member 23 is inserted into the end of the second receiving hole 211 near the anti-pinch strip 30, and the other end rests on the stepped surface 212, which can achieve both radial and axial positioning and improve the stability of the second elastic member 23.

[0037] In some embodiments, see Figure 1 and Figure 2Multiple connecting components 20 and sensing components 40 are provided. Multiple connecting components 20 are spaced apart along a third direction perpendicular to the first and second directions on the second door frame 202, and multiple sensing components 40 are spaced apart along a third direction on the second door frame 202. There can be two, three, four, or other connecting components 20. Using multiple connecting components 20 improves the stability of the anti-pinch strip 30 and also improves the stability of the anti-pinch strip 30 when it moves towards the second door frame 202 under force. There can also be two, three, four, or other sensing components 40. Using multiple sensing components 40 improves the accuracy of detecting the anti-pinch strip 30 moving towards the second door frame 202, preventing the anti-pinch strip 30 from tilting due to force on one end, thus avoiding the problem of the sensing component 40 failing to detect the anti-pinch strip 30.

[0038] In some embodiments, see Figure 1 and Figure 2 The drive assembly 10 includes a drive member 11 and a connector 12 connected to the drive member 11. The drive member 11 is connected to the first door frame 201 and electrically connected to the sensor 41. The end of the connector 12 away from the drive member 11 is connected to the sliding door 203. The drive member 11 drives the connector 12 to reciprocate along a first direction, thereby driving the sliding door 203 to reciprocate along the first direction. The drive member 11 can be a telescopic motor, telescopic cylinder, lead screw assembly, etc., as long as it can drive the connector 12 to reciprocate along the first direction. The connector 12 can be composed of multiple plate-like structures, which can stably connect the drive member 11 and the sliding door 203. When the sliding door 203 is closed or opened, the drive member 11 drives the connector 12, thereby causing the sliding door 203 to move closer to or away from the second door frame 202 along the first direction. During the closing process of the sliding door 203, if there is an obstacle between the first door frame 201 and the second door frame 202, causing the anti-pinch strip 30 to contact the sensor 41, the drive unit 11 will drive the sliding door 203 to move away from the second door frame 202 along the first direction after receiving the signal from the sensor.

[0039] The working process of the anti-pinch device 100 provided in this application embodiment is roughly as follows: When there are obstacles such as a worker's hand or body in the first door frame 201 and the second door frame 202, and the drive unit 11 is accidentally activated, causing the sliding door 203 to approach and close near the second door frame 202, the sliding door 203 pushes against the obstacle and moves towards the anti-pinch strip 30. The obstacle pushes the anti-pinch strip 30 closer to the second door frame 202 until the anti-pinch strip 30 contacts the sensor 41. The sensor 41 sends a signal to the drive unit 11, and the drive unit 11 drives the sliding door 203 to move away from the second door frame 202 in time through the connector 12. In this way, the sliding door 203 can be effectively prevented from pinching and injuring workers.

[0040] Please see Figure 1 This application also provides a processing equipment 1000, including a processing machine table 300 and the aforementioned anti-pinch device 100, wherein the anti-pinch device 100 is disposed on the processing machine table 300. It can be understood that in this embodiment, both the first door frame 201 and the second door frame 202 can be part of the housing of the processing machine table 300, and the anti-pinch device 100 can be disposed inside the processing machine table 300 to prevent the anti-pinch strip 30 from being accidentally touched during operation of the processing machine table 300, thus preventing the sliding door 203 from being accidentally opened.

[0041] The processing equipment 1000 provided in this application embodiment can prevent the sliding door 203 from pinching and injuring the operator by setting the anti-pinch device 100 of the above embodiment.

[0042] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. An anti-pinch device applied to a sliding door mechanism, the sliding door mechanism comprising a first door frame, a second door frame, and a sliding door, wherein the first door frame and the second door frame are spaced apart along a first direction, and the sliding door is slidably connected to the first door frame, characterized in that, The anti-pinch device includes: A drive assembly is connected to the first door frame and to the sliding door, the drive assembly being used to drive the sliding door to move closer to or away from the second door frame along the first direction; A connecting component is disposed on the side of the second door frame closer to the first door frame; An anti-pinch strip, connected to the connecting assembly, is spaced apart from the side of the second door frame closest to the first door frame. Guided by the connecting assembly, the anti-pinch strip can move closer to or further away from the second door frame. The anti-pinch strip is offset from the sliding door along a second direction perpendicular to the first direction. The sensing component includes a sensor connected to the second door frame and disposed opposite to the side of the anti-pinch strip near the second door frame. The sensor is electrically connected to the drive component and is used to send a signal when the anti-pinch strip moves along the first direction and abuts against the sensor, so that the drive component drives the sliding door away from the second door frame.

2. The anti-pinch device as described in claim 1, characterized in that, The sensing component further includes a housing and a sliding member. The housing is connected to the second door frame. The housing has a first receiving hole extending along the first direction. The sliding member is slidably disposed in the first receiving hole along the first direction. The sensor is disposed in the first receiving hole and connected to the sliding member. The end of the sensor near the anti-pinch strip can extend out of the first receiving hole.

3. The anti-pinch device as described in claim 2, characterized in that, The sensing component further includes a first elastic member. A stop portion is provided at one end of the receiving shell away from the anti-pinch strip. The stop portion extends toward the axis of the first receiving hole. The first elastic member is disposed in the first receiving hole, and the two ends of the first elastic member abut against the sliding member and the stop portion, respectively. The first elastic member is used to push the sliding member to move closer to the anti-pinch strip, thereby driving the sensor to move closer to the anti-pinch strip.

4. The anti-pinch device as described in claim 3, characterized in that, The sensing component also includes a stop ring, which is disposed on the side of the housing near the anti-pinch strip. The stop ring has a through hole, and the end of the sensor near the anti-pinch strip passes through the through hole. The stop ring is used to stop the sliding member from moving near the anti-pinch strip.

5. The anti-pinch device as described in claim 1, characterized in that, The connecting assembly includes a support sleeve, a sliding rod, and a second elastic element. The support sleeve is connected to the second door frame and has a second receiving hole extending along the first direction. The sliding rod is slidably disposed in the second receiving hole along the first direction and is connected to the anti-pinch strip. The second elastic element is sleeved on the sliding rod, and both ends of the second elastic element abut against the anti-pinch strip and the support sleeve, respectively. The second elastic element is used to push the anti-pinch strip away from the second door frame.

6. The anti-pinch device as described in claim 5, characterized in that, The connecting assembly further includes a stop plate, which is connected to the end of the sliding rod away from the anti-pinch strip, and the stop plate is disposed on the side of the support sleeve opposite to the anti-pinch strip. The stop plate is used to abut against the support sleeve to limit the sliding rod.

7. The anti-pinch device as described in claim 5, characterized in that, The second receiving hole has a stepped surface that extends radially along the second receiving hole. The radius of the end of the second receiving hole near the anti-pinch strip is greater than the radius of the end away from the anti-pinch strip. The end of the second elastic member away from the anti-pinch strip is disposed in the second receiving hole and abuts against the stepped surface.

8. The anti-pinch device as described in claim 1, characterized in that, Multiple connecting components and multiple sensing components are provided. Multiple connecting components are spaced apart in the second door frame along a third direction perpendicular to the first direction and the second direction, and multiple sensing components are spaced apart in the second door frame along the third direction.

9. The anti-pinch device as described in claim 1, characterized in that, The drive assembly includes a drive member and a connector connected to the drive member. The drive member is connected to the first door frame and electrically connected to the sensor. The end of the connector away from the drive member is connected to the sliding door. The drive member is used to drive the connector to reciprocate along the first direction, so as to drive the sliding door to reciprocate along the first direction through the connector.

10. A processing device, characterized in that, include: Processing machine tools; and The anti-pinch device as described in any one of claims 1-9, wherein the anti-pinch device is disposed on the processing machine table.

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