Anti-pinch door opener

Abstract

The application relates to an anti-pinch door opener and relates to the technical field of door openers. The anti-pinch door opener comprises a door opener shell arranged on a door body, and the door body comprises a receiving cavity. The application can effectively prevent a person from being injured when the person is pinched. When the first anti-pinch strip and the second anti-pinch strip are moved by a sliding door and an accidental pinching situation occurs, the internal hollow space of the first anti-pinch strip will be compressed to generate pressure change. When the pressure sensor detects the pressure change, data is transmitted to a data processor. The data processor controls the motor to timely reverse work, so that the first anti-pinch strip and the second anti-pinch strip are timely separated. The anti-pinch door opener has a relatively stable anti-pinch function, can avoid the situation that the door opener is pinched and injured due to some accidents during work, can timely perform a back-off operation when a person is pinched, and improves the safety effect of the door opener during use.

Description

Technical Field

[0001] This application relates to the technical field of door openers, and in particular to a door opener designed to prevent pinching injuries. Background Technology

[0002] In modern buildings and various venues, door openers are widely used as key equipment for automating door opening and closing. From shopping malls and office buildings in the commercial sector, to hospitals and schools in public facilities, and to unit doors and garage doors in residential communities, door openers play an indispensable role, greatly improving the convenience and security of door use and meeting people's needs for efficient access and intelligent management.

[0003] Existing gate openers typically lack anti-pinch functionality, which may lead to injuries due to accidents during operation, thus affecting the safety of using the gate opener. Utility Model Content

[0004] The purpose of this application is to provide an anti-pinch door opener with a relatively stable anti-pinch function, which can prevent accidental pinching during operation and can promptly retract when someone is pinched, thus improving the safety of the door opener. This solves the problem that existing door openers usually do not have an anti-pinch function, and accidental pinching during operation may affect the safety of using the door opener.

[0005] This application provides a door opener with an anti-pinch function, employing the following technical solution: An anti-pinch door opener includes a door opener housing, which is mounted on a door body. The door body includes a storage cavity, within which a sliding door slides. A door frame is provided on one side of the storage cavity. A first anti-pinch strip and a second anti-pinch strip are provided between one side of the door frame post and one side of the sliding door. Both the first and second anti-pinch strips are hollow. The first anti-pinch strip is located on the side of the sliding door closest to the door frame post, and the second anti-pinch strip is located on the side of the door frame post closest to the sliding door. The first anti-pinch strip contains multiple... A pressure sensor is included. One end of the door opener housing is fixedly connected to the outer surface of one side of the storage cavity. A motor is installed at one end of the inner wall of the middle section of the door opener housing. A rotating shaft is installed at one end of the motor output shaft. A telescopic rod is installed at one end of the rotating shaft. A gear is installed at one end of the telescopic rod. A coupling assembly is installed between the gear and the telescopic rod. A rack meshes with the bottom of the gear. The rack is installed at the top of the sliding door. A data processor is installed on one side of the inner wall of the middle section of the door opener housing. The data processor is electrically connected to the motor and the pressure sensor. The first anti-pinch strip and the second anti-pinch strip are made of flexible rubber material.

[0006] By adopting the above technical solution, the first anti-pinch strip, in conjunction with the second anti-pinch strip and its internal hollow structure, can effectively prevent injury when someone is pinched. When the sliding door moves and the first and second anti-pinch strips accidentally pinch a person, the internal hollow space of the first anti-pinch strip will be compressed, causing a pressure change. When the pressure sensor detects the pressure change, it will transmit the data to the data processor. The data processor will control the motor to reverse in time, so that the first and second anti-pinch strips will separate in time, achieving a relatively stable anti-pinch function. This can prevent injuries caused by accidents during the operation of the door opener. In case someone is pinched, the door opener can be retracted in time, improving the safety of the door opener during use.

[0007] Preferably, a plurality of spaced partitions are provided in the inner wall of the middle portion of the first anti-pinch strip, and the space in the inner wall of the middle portion of the first anti-pinch strip is divided into a plurality of detection chambers by the plurality of partitions, and a pressure sensor is provided in each of the plurality of detection chambers.

[0008] By adopting the above technical solution, the partition block divides the internal space of the first anti-pinch strip into multiple detection chambers, and a pressure sensor is set in each detection chamber, realizing accurate detection of pressure changes in different areas of the first anti-pinch strip. When a certain area is squeezed, the corresponding pressure sensor can respond quickly, enabling the data processor to obtain more accurate pressure information, thereby controlling the motor more timely and accurately, and further improving the sensitivity and accuracy of the anti-pinch function.

[0009] Preferably, the coupling assembly includes a first connecting plate and a second connecting plate. The first connecting plate is disposed at one end of the telescopic inner rod of the telescopic rod, and the second connecting plate is disposed on one side of the gear. A driving block and a driven block are provided between the first connecting plate and the second connecting plate. The driving block is disposed on the side of the first connecting plate near the second connecting plate, and the driven block is disposed on the side of the second connecting plate near the first connecting plate. The driven block is located on the rotation trajectory of the driving block.

[0010] By adopting the above technical solution, the first connecting plate, the second connecting plate, the driving block, and the driven block in the coupling assembly cooperate with each other to achieve stable and flexible power transmission between the telescopic rod and the gear. The driving block drives the driven block to rotate, ensuring that the gear can operate stably according to the drive of the motor.

[0011] Preferably, the side of the gear furthest from the coupling assembly is rotatably mounted on one side of the inner wall of the storage cavity via a positioning shaft.

[0012] By adopting the above technical solution, the gear is rotatably set on one side of the inner wall of the storage cavity through the positioning shaft, which provides stable support and rotation fulcrum for the gear and ensures the smoothness of the gear in the meshing transmission process with the rack.

[0013] Preferably, a spring is provided inside the telescopic rod, with one end of the spring located at one end of the inner wall of the telescopic outer tube and the other end of the spring located at one end of the telescopic inner rod.

[0014] By adopting the above technical solution, the spring can apply a certain thrust to the telescopic inner rod of the telescopic rod, so that the telescopic rod can stably position the first connecting plate, and the drive block can stably drive the second connecting plate to rotate through the driven block.

[0015] Preferably, both sides of the driving block and the driven block are inclined, and the inclined outer surfaces of the driving block and the driven block are adapted to each other. When the driving block drives the driven block, one side of the inclined outer surface of the driving block and one side of the inclined outer surface of the driven block are in contact with each other and are slidably connected. The driving block and the driven block do not completely cover the opposite edge of the first connecting disk and the second connecting disk.

[0016] By adopting the above technical solution, the inclined outer surfaces of the driving block and the driven block cooperate with each other. When the sliding door clamps a human body during its movement, the sliding door will encounter a certain resistance. This resistance is then transmitted to the coupling assembly via a rack and pinion mechanism. This increases the resistance when the driving block drives the driven block to rotate, causing the spring to be unable to stably push the first connecting plate through the telescopic rod. This results in slippage between the inclined outer surfaces of the driving block and the driven block, causing the driving block to push the first connecting plate away from the second connecting plate, retracting the telescopic rod, and compressing the spring until the driving block... The drive block can quickly release the drive block's influence on the driven block by the continuous rotation of the first connecting plate, thereby releasing the driving force on the sliding door and preventing the sliding door from continuously clamping the human body. This also prevents the pressure sensor from failing to detect pressure changes and transmit pressure data in time, which would cause the sliding door to fail to retract in time and continue to apply clamping force to the human body. By not completely covering the opposite edge of the first and second connecting plates, the driving force of the drive block on the driven block has a large buffer space, preventing the drive block from quickly driving the driven block again, allowing the person being clamped to be removed from the clamping point in time.

[0017] Preferably, a limiting rod is provided on one side of the outer surface of the middle part of the telescopic inner rod through a fixing plate, the outer surface of the middle part of the limiting rod is slidably disposed within the inner wall of the middle part of the limiting frame, and one end of the limiting frame is disposed on one side of the outer surface of the middle part of the telescopic outer tube of the telescopic rod.

[0018] By adopting the above technical solution, the cooperation between the limiting rod and the limiting frame plays a limiting and guiding role in the telescopic movement of the inner telescopic rod, preventing the telescopic rod from deviating or shaking during the telescopic process, ensuring the accuracy and stability of the telescopic movement, and enabling the telescopic rod to stably apply driving force to the coupling assembly.

[0019] Preferably, the telescopic rod is provided with a distance sensing component, which includes a first distance sensor and a second distance sensor. The first distance sensor and the second distance sensor cooperate with each other through a telecommunication connection. The first distance sensor is fixed on one side of the outer surface of the middle part of the telescopic outer tube of the telescopic rod through a fixing plate, and the second distance sensor is fixed on one side of the outer surface of the middle part of the telescopic inner rod of the telescopic rod through a fixing plate. The distance sensing component is telecommunicationly connected to a data processor.

[0020] By adopting the above technical solution, the first distance sensor and the second distance sensor in the distance sensing component work together to monitor the distance change between the inner telescopic rod and the outer tube of the telescopic rod in real time. This allows for the monitoring of the distance between the first connecting plate and the second connecting plate. When someone is trapped, causing the drive block to be obstructed and the first connecting plate to push the telescopic rod to retract, the data can be transmitted to the data processor in a timely manner. The data processor can then control the working direction of the motor based on the distance information, causing the motor to control the drive block to drive the driven block in the opposite direction, thus causing the sliding door to retract and release the trapped person.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] This anti-pinch door opener effectively prevents injury when someone is pinched by a first anti-pinch strip combined with a second anti-pinch strip and its internal hollow design. When the sliding door moves and the first and second anti-pinch strips accidentally pinch a person, the hollow space inside the first anti-pinch strip is compressed, causing a pressure change. When the pressure sensor detects the pressure change, it transmits the data to the data processor. The data processor then controls the motor to reverse in time, causing the first and second anti-pinch strips to separate promptly. This achieves a relatively stable anti-pinch function, preventing injuries from accidental pinching during operation. It also allows for timely retraction when someone is pinched, improving the safety of the door opener during use.

[0023] This anti-pinch door opener, through the cooperation of the drive block and the driven block, can promptly release the driving force on the sliding door when someone is pinched. Furthermore, through the data transmission of the distance sensing component to the data sensor, it can promptly control the sliding door to retract. It assists the anti-pinch treatment of the first anti-pinch strip, the second anti-pinch strip, and the pressure sensor in working together, avoiding the situation where the pressure sensor fails to detect in time and cannot quickly drive the sliding door to retract. The cooperation of the two anti-pinch methods can more stably ensure the normal operation of the door opener's anti-pinch function. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present application;

[0025] Figure 2 This is a schematic cross-sectional view of the left side of this application;

[0026] Figure 3 This is a top sectional view of this application;

[0027] Figure 4 This is an exploded view of the coupling assembly of this application;

[0028] Figure 5 This is a cross-sectional view of the telescopic pole of this application.

[0029] In the picture:

[0030] 1. Door opener housing; 2. Door body; 201. Storage cavity; 202. Sliding door; 203. Door frame; 3. Motor; 4. Rotating shaft; 5. Telescopic rod; 6. Coupling assembly; 601. First connecting plate; 602. Drive block; 603. Driven block; 604. Second connecting plate; 7. Gear; 8. Rack; 9. First anti-pinch strip; 10. Second anti-pinch strip; 11. Pressure sensor; 12. Separator block; 13. Detection chamber; 14. Spring; 15. Limiting rod; 16. Limiting frame; 17. Data processor; 18. Distance sensing assembly; 1801. First distance sensor; 1802. Second distance sensor. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0032] Example 1: A door opener designed to prevent pinching injuries. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3The system includes a door opener housing 1, which is mounted on a door body 2. The door body 2 includes a storage cavity 201, within which a sliding door 202 slides. A door frame 203 is mounted on one side of the storage cavity 201. A first anti-pinch strip 9 and a second anti-pinch strip 10 are provided between one side of the door frame 203 column and one side of the sliding door 202. Both the first anti-pinch strip 9 and the second anti-pinch strip 10 are hollow. The first anti-pinch strip 9 is located on the side of the sliding door 202 near the door frame 203 column, and the second anti-pinch strip 10 is located on the side of the door frame 203 column near the sliding door 202. Multiple pressure sensors 11 are installed inside the first anti-pinch strip 9. One end of the door opener housing 1 is fixedly connected to the outer surface of one side of the storage cavity 201. A motor 3 is installed at one end of the inner wall of the middle part of the door opener housing 1. A rotating shaft 4 is installed at one end of the output shaft of the motor 3. A telescopic rod 5 is installed at one end of the rotating shaft 4. A gear 7 is installed at one end of the telescopic rod 5. A coupling assembly 6 is installed between the gear 7 and the telescopic rod 5. A rack 8 meshes with the bottom of the gear 7. The rack 8 is installed at the top of the sliding door 202. A data processor 17 is installed on one side of the inner wall of the middle part of the door opener housing 1. The data processor 17 is electrically connected to the motor 3 and the pressure sensor 11. The first anti-pinch strip 9 and the second anti-pinch strip 10 are made of flexible rubber material.

[0033] Please see Figure 2 Multiple spacer blocks 12 are arranged at fixed intervals on the inner wall of the middle part of the first anti-pinch strip 9. The space of the inner wall of the middle part of the first anti-pinch strip 9 is divided into multiple detection chambers 13 by the multiple spacer blocks 12. Each detection chamber 13 is equipped with a pressure sensor 11. The spacer blocks 12 divide the internal space of the first anti-pinch strip 9 into multiple detection chambers 13 and set a pressure sensor 11 in each detection chamber 13, so as to realize the accurate detection of pressure changes in different areas of the first anti-pinch strip 9. When a certain area is squeezed, the corresponding pressure sensor 11 can respond quickly, so that the data processor 17 can obtain more accurate pressure information, thereby controlling the motor 3 more timely and accurately, and further improving the sensitivity and accuracy of the anti-pinch function.

[0034] Please see Figure 2 and Figure 3 The side of gear 7 away from the coupling assembly 6 is rotatably mounted on one side of the inner wall of the middle part of the storage cavity 201 via the positioning shaft. The gear 7 is rotatably mounted on one side of the inner wall of the middle part of the storage cavity 201 via the positioning shaft, which provides stable support and rotation fulcrum for gear 7 and ensures the smoothness of gear 7 during meshing transmission with rack 8.

[0035] Please see Figure 3 and Figure 5A limiting rod 15 is provided on one side of the outer surface of the middle part of the telescopic inner rod of the telescopic rod 5 through a fixing plate. The outer surface of the middle part of the limiting rod 15 is slidably disposed in the inner wall of the middle part of the limiting frame 16. One end of the limiting frame 16 is disposed on one side of the outer surface of the middle part of the telescopic outer tube of the telescopic rod 5. The cooperation between the limiting rod 15 and the limiting frame 16 plays a limiting and guiding role in the telescopic movement of the inner rod of the telescopic rod 5, preventing the telescopic rod 5 from deviating or shaking during the telescopic process, ensuring the accuracy and stability of the telescopic movement of the telescopic rod 5, and enabling the telescopic rod 5 to stably apply driving force to the coupling assembly 6.

[0036] Example 2: A door opener designed to prevent pinching injuries. Please refer to [link / reference]. Figure 3 and Figure 4 The coupling assembly 6 includes a first connecting plate 601 and a second connecting plate 604. The first connecting plate 601 is located at one end of the telescopic inner rod of the telescopic rod 5, and the second connecting plate 604 is located on one side of the gear 7. A driving block 602 and a driven block 603 are provided between the first connecting plate 601 and the second connecting plate 604. The driving block 602 is located on the side of the first connecting plate 601 near the second connecting plate 604, and the driven block 603 is located on the side of the second connecting plate 604 near the first connecting plate 601. The driven block 603 is located on the rotation trajectory of the driving block 602. The first connecting plate 601, the second connecting plate 604, the driving block 602, and the driven block 603 in the coupling assembly 6 cooperate with each other to realize a stable and flexible power transmission between the telescopic rod 5 and the gear 7. The driving block 602 drives the driven block 603 to rotate, ensuring that the gear 7 can operate stably according to the drive of the motor 3.

[0037] Please see Figure 5 The telescopic rod 5 is equipped with a spring 14 inside. One end of the spring 14 is located on the inner wall of the telescopic outer tube of the telescopic rod 5, and the other end of the spring 14 is located on the inner telescopic rod of the telescopic rod 5. The spring 14 can apply a certain thrust to the inner telescopic rod of the telescopic rod 5, so that the telescopic rod 5 can stably position the first connecting plate 601, and the driving block 602 can stably drive the second connecting plate 604 to rotate through the driven block 603.

[0038] Please see Figure 3 and Figure 4Both sides of the driving block 602 and the driven block 603 are inclined. The inclined outer surfaces of the driving block 602 and the driven block 603 are adapted to each other. When the driving block 602 drives the driven block 603, one side of the inclined outer surface of the driving block 602 and one side of the inclined outer surface of the driven block 603 are in contact and slidably connected. The driving block 602 and the driven block 603 do not completely cover the opposite edge of the first connecting plate 601 and the second connecting plate 604. Due to the cooperation of the inclined outer surfaces of the driving block 602 and the driven block 603, when the sliding door 202 clamps a human body during its movement, the movement of the sliding door 202 will be subject to a certain resistance. This resistance will be transmitted to the coupling assembly 6 through the rack 8 and the gear 7. This will increase the resistance when the driving block 602 drives the driven block 603 to rotate. This will cause the spring 14 to be unable to stably push the first connecting plate 601 through the telescopic rod 5, and will cause the driving block 602 and the driven block 603 to cooperate with each other. The inclined outer surfaces of the sliding door 202 slide against each other, causing the drive block 602 to push the first connecting plate 601 away from the second connecting plate 604, causing the telescopic rod 5 to retract and compress the spring 14. This continues until the drive block 602 passes over the driven block 603 through the continuous rotation of the first connecting plate 601, quickly releasing the drive of the drive block 602 on the driven block 603. This releases the driving force on the sliding door 202, preventing the sliding door 202 from continuously clamping the human body. It also prevents the pressure sensor 11 from failing to detect pressure changes and transmit pressure data in time, thus preventing the sliding door 202 from retracting in time and continuously applying clamping force to the human body. Because the drive block 602 and the driven block 603 do not completely cover the opposite edge of the first connecting plate 601 and the second connecting plate 604, the driving force of the drive block 602 on the driven block 603 has a large buffer space, preventing the drive block 602 from quickly driving the driven block 603 again, allowing the person being clamped to be removed from the clamping point in time.

[0039] Please see Figure 3 and Figure 5The telescopic rod 5 is equipped with a distance sensing assembly 18, which includes a first distance sensor 1801 and a second distance sensor 1802. The first distance sensor 1801 and the second distance sensor 1802 cooperate with each other through a telecommunication connection. The first distance sensor 1801 is mounted on one side of the outer surface of the middle part of the telescopic outer tube of the telescopic rod 5 through a fixing plate, and the second distance sensor 1802 is mounted on one side of the outer surface of the middle part of the telescopic inner rod of the telescopic rod 5 through a fixing plate. The distance sensing assembly 18 is telecommunicationly connected to the data processor 17. The first distance sensor 1801 and the second distance sensor 18 in the distance sensing assembly 18 are... The second distance sensor 1802 works in conjunction with the telescopic rod 5 to monitor the distance change between the inner telescopic rod and the outer tube in real time. This allows for the monitoring of the distance between the first connecting plate 601 and the second connecting plate 604. When someone is trapped, causing the drive block 602 to be obstructed and the first connecting plate 601 to push the telescopic rod 5 to retract, the data can be promptly transmitted to the data processor 17. The data processor 17 can then control the working direction of the motor 3 based on the distance information, causing the motor 3 to control the drive block 602 to drive the driven block 603 in the opposite direction, thus causing the sliding door 202 to retract and release the trapped person.

[0040] The implementation principle of this application embodiment is as follows: When the door opener is working, the motor 3 starts, driving the telescopic rod 5 to rotate via the rotating shaft 4. The telescopic rod 5 drives the gear 7 to rotate via the coupling assembly 6. The gear 7 meshes with the rack 8, thereby driving the sliding door 202 to slide within the storage cavity 201, realizing the opening and closing of the door. During the movement of the sliding door 202, if a person or object accidentally enters between the first anti-pinch strip 9 and the second anti-pinch strip 10 and is trapped, the hollow setting in the middle of the first anti-pinch strip 9 and the second anti-pinch strip 10 can prevent the trapped person from suffering greater trapping injury. Pressure changes occur in the detection chamber 13 inside the clamping bar 9. The pressure sensor 11 inside the detection chamber 13 detects the pressure change and transmits the data to the data processor 17. Upon receiving the pressure change signal, the data processor 17 immediately controls the motor 3 to reverse, causing the sliding door 202 to move in the opposite direction. The first anti-pinch bar 9 separates from the second anti-pinch bar 10, releasing the clamp on the person being clamped. When the pressure sensor 11 quickly detects a pressure change, the continuous movement of the sliding door 202 will encounter a certain resistance. This resistance will be transmitted to the connecting gear through the engagement of the rack 8 and the gear 7. On the shaft assembly 6, when the driving block 602 drives the driven block 603, it encounters a certain resistance. This resistance overcomes the thrust of the spring 14 on the telescopic rod 5, causing the inclined outer surfaces of the driving block 602 and the driven block 603 to slip against each other. This causes the driving block 602 to push the first connecting plate 601 away from the second connecting plate 604, causing the telescopic rod 5 to retract and compress the spring 14. The driving block 602 eventually passes over the driven block 603 through the continuous rotation of the first connecting plate 601, quickly releasing the driving force of the driving block 602 on the driven block 603. This releases the driving force on the sliding door 202, preventing it from continuously trapping the human body. When the telescopic rod 5 retracts, the first distance sensor 1801 and the second distance sensor 1802 work together to detect the movement of the first connecting plate 601. This causes the distance sensing component 18 to transmit data to the data processor 17, which in turn controls the working direction of the motor 3 based on the distance information. The motor 3 then controls the drive block 602 to drive the driven block 603 in the opposite direction, causing the sliding door 202 to retract in time.

[0041] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A door closer with anti-pinch function, comprising a door closer housing (1), characterized in that: The door opener housing (1) is mounted on the door body (2). The door body (2) includes a storage cavity (201). A sliding door (202) slides within the storage cavity (201). A door frame (203) is mounted on one side of the storage cavity (201). A first anti-pinch strip (9) and a second anti-pinch strip (10) are provided between one side of the door frame (203) column and one side of the sliding door (202). Both the first anti-pinch strip (9) and the second anti-pinch strip (10) are hollow inside. The first anti-pinch strip (9) is located on the side of the sliding door (202) near the door frame (203) column, and the second anti-pinch strip (10) is located on the side of the door frame (203) column near the sliding door (202). Multiple pressure sensors (11) are installed inside the first anti-pinch strip (9). The door opener housing (1) One end of the door opener housing (1) is fixedly connected to the outer surface of the storage cavity (201) on one side. A motor (3) is provided at one end of the inner wall of the middle part of the door opener housing (1). A rotating shaft (4) is provided at one end of the output shaft of the motor (3). A telescopic rod (5) is provided at one end of the rotating shaft (4). A gear (7) is provided at one end of the telescopic rod (5). A coupling assembly (6) is provided between the gear (7) and the telescopic rod (5). A rack (8) meshes with the bottom of the gear (7). The rack (8) is located at the top of the sliding door (202). A data processor (17) is provided on one side of the inner wall of the middle part of the door opener housing (1). The data processor (17) is electrically connected to the motor (3) and the pressure sensor (11). The first anti-pinch strip (9) and the second anti-pinch strip (10) are made of flexible rubber material.

2. The door opening machine according to claim 1, wherein: The first anti-pinch strip (9) has multiple spacer blocks (12) arranged at fixed intervals in the inner wall of the middle part. The space of the inner wall of the first anti-pinch strip (9) is divided into multiple detection chambers (13) by the multiple spacer blocks (12). Each of the multiple detection chambers (13) is equipped with a pressure sensor (11).

3. The door opening machine according to claim 1, wherein: The coupling assembly (6) includes a first connecting plate (601) and a second connecting plate (604). The first connecting plate (601) is located at one end of the telescopic inner rod of the telescopic rod (5), and the second connecting plate (604) is located on one side of the gear (7). A driving block (602) and a driven block (603) are provided between the first connecting plate (601) and the second connecting plate (604). The driving block (602) is located on one side edge of the first connecting plate (601) near the second connecting plate (604), and the driven block (603) is located on one side edge of the second connecting plate (604) near the first connecting plate (601). The driven block (603) is located on the rotation trajectory of the driving block (602).

4. The door opening machine according to claim 1, wherein: The gear (7) is rotatably mounted on one side of the inner wall of the storage cavity (201) via a positioning shaft on the side away from the coupling assembly (6).

5. The door opening machine according to claim 1, wherein: The telescopic rod (5) is equipped with a spring (14). One end of the spring (14) is located at one end of the inner wall of the telescopic outer tube of the telescopic rod (5), and the other end of the spring (14) is located at one end of the telescopic inner rod of the telescopic rod (5).

6. The door opening machine according to claim 3, wherein: Both sides of the driving block (602) and the driven block (603) are inclined. The inclined outer surfaces of the driving block (602) and the driven block (603) are adapted to each other. When the driving block (602) drives the driven block (603), one side of the inclined outer surface of the driving block (602) and one side of the inclined outer surface of the driven block (603) are in contact with each other and are slidably connected. The driving block (602) and the driven block (603) do not completely cover the opposite edge of the first connecting plate (601) and the second connecting plate (604).

7. The door opening machine according to claim 1, wherein: A limiting rod (15) is provided on one side of the outer surface of the middle part of the telescopic inner rod of the telescopic rod (5) through a fixing plate. The middle outer surface of the limiting rod (15) is slidably disposed in the middle inner wall of the limiting frame (16). One end of the limiting frame (16) is disposed on one side of the middle outer surface of the telescopic outer tube of the telescopic rod (5).

8. The door opening machine according to claim 1, wherein: The telescopic rod (5) is provided with a distance sensing component (18), which includes a first distance sensor (1801) and a second distance sensor (1802). The first distance sensor (1801) and the second distance sensor (1802) cooperate with each other through a telecommunication connection. The first distance sensor (1801) is fixed on one side of the outer surface of the middle part of the telescopic outer tube of the telescopic rod (5) through a fixing plate. The second distance sensor (1802) is fixed on one side of the outer surface of the middle part of the telescopic inner rod of the telescopic rod (5) through a fixing plate. The distance sensing component (18) is telecommunicationly connected to the data processor (17).

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