A mobile phone data line fixing device

Abstract

The present invention discloses a mobile phone data cable fixing device, which relates to the technical field of mobile phone accessories, and comprises a base plate, wherein a tension detection mechanism is fixedly installed on the inner wall of the base plate; the tension detection mechanism comprises a clamping sub-mechanism and a stretching sub-mechanism; the stretching sub-mechanism comprises a motor fixedly installed on the top of the base plate, a first connecting rod is fixedly installed on the driving end of the motor, a fourth connecting rod is rotatably installed on the side end of the first connecting rod, a third connecting rod is rotatably installed on the side end of the fourth connecting rod, and a second connecting rod is rotatably installed on the side end of the third connecting rod; in the present invention, the tension detection mechanism can be used to simulate the stress conditions of the data cable in different usage scenarios, and the clamping sub-mechanism can accurately adjust the spacing between the clamping plates through the cooperation of a rotating motor and a screw rod, so as to achieve stable clamping and release of the data cable. Compared with the traditional tension detection method, the present invention can more accurately reflect the stress conditions of the data cable in a specific section, so as to timely discover potential quality problems.

Description

Technical Field

[0001] The invention relates to the technical field of mobile phone accessories, in particular to a mobile phone data line fixing device. Background Art

[0002] In the current field of mobile phone data cable production, the quality and durability of data cables have always been the focus of common concern of manufacturers and users. In order to ensure that the data cables can meet the needs of various usage scenarios, data cable production factories will conduct strict tensile tests on the data cables before leaving the factory. This testing process usually involves placing the entire data cable on a tensile testing device to evaluate the overall strength and durability of the data cable by applying a certain tensile force.

[0003] However, with the continuous expansion of smartphone functions and the increasing diversification of user needs, the usage scenarios of data cables have become more and more complex and diverse. In certain specific circumstances, a specific section of the data cable may be subjected to greater tension or twisting force. For example, when a user hangs a mobile phone on a data cable to take a selfie or shoot a video, the top connection section of the data cable may be subjected to greater tension; and when a user uses a data cable to connect to a car charger, the middle or bottom section of the data cable may be damaged due to frequent bending and pulling.

[0004] Although the traditional method of testing the tensile force of the entire data cable can evaluate the overall strength of the data cable, it cannot accurately reflect the stress conditions of the data cable in a specific section. Therefore, when the data cable is subjected to a large tensile force or twisting force in a specific section, problems such as breakage, poor contact or reduced transmission efficiency may occur, thereby affecting the user experience and the service life of the data cable.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The purpose of the present invention is to provide a mobile phone data line fixing device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides a mobile phone data cable fixing device, comprising a bottom plate, and a tension detection mechanism is fixedly installed on the inner wall of the bottom plate; The tension detection mechanism includes a clamping sub-mechanism and a stretching sub-mechanism; The stretching sub-mechanism includes a motor fixedly mounted on the top of the base plate, a first connecting rod fixedly mounted on the driving end of the motor, a fourth connecting rod rotatably mounted on the side end of the first connecting rod, a third connecting rod rotatably mounted on the side end of the fourth connecting rod, a second connecting rod rotatably mounted on the side end of the third connecting rod, and the side end of the second connecting rod is rotatably connected to the first connecting rod; a clamping sub-mechanism is rotatably mounted at the connection between the third and fourth connecting rods.

[0008] Furthermore, the clamping sub-mechanism includes a screw rod rotatably installed at the connection between the third connecting rod and the fourth connecting rod, a rotary motor is fixedly installed at the bottom end of the screw rod, the rotary motor is slidably installed in a slide groove opened on the inner wall of the bottom plate, the outer wall of the screw rod is threadedly installed in a threaded hole opened on the inner wall of the slider, a slide plate is fixedly installed on the side wall of the slider, a clamp plate is slidably installed on the outer wall of the slide plate, and a clamping groove is opened on the inner wall of the clamp plate.

[0009] Furthermore, a fixing column is fixedly installed on the top of the bottom plate away from the motor, and a USB plugging and unplugging force detection mechanism is fixedly installed on the top of the fixing column; The USB plugging and unplugging force detection mechanism includes a chassis fixedly installed on the top of a fixed column, a fixing plate fixedly installed on the inner side wall of the chassis, a connecting plate fixedly installed on the side wall of the fixing plate, a connecting shaft rotatably installed on the connecting plate away from the inner wall of the fixing plate, a pointer fixedly installed on the top end of the outer wall of the connecting shaft, a gear fixedly installed on the middle section of the outer wall of the connecting shaft, a rack meshingly connected to the outer wall of the gear, a sliding rod fixedly installed on the end of the rack, a sliding column fixedly installed on the side wall of the sliding rod away from the rack, and a USB connection port fixedly installed on the side end of the sliding column.

[0010] Furthermore, a first tension spring is fixedly installed on the inner wall of the fixed plate, the other end of which is fixedly connected to the inner wall of the sliding rod, a second tension spring is fixedly installed on the other side of the fixed plate close to the first tension spring, and the end of the second tension spring away from the fixed plate is fixedly connected to the sliding rod.

[0011] Furthermore, a connecting groove is provided on the inner wall of the clamping plate, a connecting column is slidably mounted on the inner wall of the connecting groove, and the connecting column is fixedly connected to the inner wall of the slide plate.

[0012] Furthermore, a limit plate is fixedly installed on the top of the chassis, and a visible shell is fixedly installed on the top of the limit plate.

[0013] Furthermore, a first rotating shaft is rotatably mounted at the connection between the first connecting rod and the fourth connecting rod, and a second rotating shaft is rotatably mounted at the connection between the second connecting rod and the third connecting rod.

[0014] Furthermore, a shell is fixedly mounted on the outer wall of the bottom plate, and a limiting groove is provided on the top of the shell, and the limiting groove is used for the movement and opening and closing of the clamping sub-mechanism.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The tension detection mechanism can simulate the stress conditions of the data cable in different usage scenarios. At the same time, the clamping sub-mechanism can accurately adjust the distance between the clamping plates through the cooperation of the rotating motor and the screw to achieve stable clamping and release of the data cable. Compared with the traditional tension detection method of the entire data cable, the present invention can more accurately reflect the stress conditions of the data cable in a specific section, thereby timely discovering potential quality problems.

[0016] 2. Through the coordination of gears, racks and pointers, the plugging and unplugging force is converted into rotational motion to achieve intuitive readings, which can then be used to detect whether the plugging and unplugging force of the USB connector of the data cable meets the factory requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a tension detection mechanism of a mobile phone data cable fixing device after being unfolded; Figure 2 This is a schematic diagram of the extension mechanism structure of a mobile phone data cable fixing device; Figure 3 It is a schematic diagram of the exploded structure of a clamping mechanism of a mobile phone data cable fixing device; Figure 4 A schematic diagram of the front structure of a USB plug-in and pull-out force detection mechanism of a mobile phone data cable fixing device; Figure 5 A schematic diagram of the internal structure of a USB plug-in force detection mechanism of a mobile phone data cable fixing device; Figure 6 The figure is a schematic diagram of the front structure of a mobile phone data cable fixing device.

[0018] In the figure: 1. outer shell; 2. clamping plate; 3. visible shell; 4. USB connection port; 5. limiting groove; 6. bottom plate; 7. motor; 8. first connecting rod; 9. second connecting rod; 10. first rotating shaft; 11. second rotating shaft; 12. third connecting rod; 13. fourth connecting rod; 14. sliding groove; 15. clamping groove; 16. connecting groove; 17. sliding block; 18. sliding plate; 19. connecting column; 20. threaded hole; 21. screw; 22. rotating motor; 23. fixing column; 24. chassis; 25. fixing plate; 26. first tension spring; 27. connecting plate; 28. connecting shaft; 29. ​​gear; 30. second tension spring; 31. pointer; 32. limiting plate; 33. rack; 34. sliding rod; 35. sliding column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 - Figure 6 , the present invention provides a technical solution: a mobile phone data line fixing device, comprising a bottom plate 6, the inner wall of which is fixedly mounted with a tension detection mechanism; The tension detection mechanism includes a clamping sub-mechanism and a stretching sub-mechanism; The stretching sub-mechanism includes a motor 7 fixedly mounted on the top of the base plate 6, a first connecting rod 8 is fixedly mounted on the driving end of the motor 7, a fourth connecting rod 13 is rotatably mounted on the side end of the first connecting rod 8, a third connecting rod 12 is rotatably mounted on the side end of the fourth connecting rod 13, a second connecting rod 9 is rotatably mounted on the side end of the third connecting rod 12, and the side end of the second connecting rod 9 is rotatably connected to the first connecting rod 8; a clamping sub-mechanism is rotatably mounted at the connection between the third connecting rod 12 and the fourth connecting rod 13.

[0021] It should be noted that: the bottom plate 6 is the basic supporting component of the entire device, located at the bottom, and is used to fix the tension detection mechanism and provide a stable supporting platform; Furthermore, the first connecting rod 8 is used as a transmission component to convert the rotational motion of the motor 7 into a linear stretching motion, and the second connecting rod 9, the third connecting rod 12, and the fourth connecting rod 13 together form a four-bar linkage to achieve force amplification and transmission, thereby ensuring the stability and accuracy of the stretching effect; Furthermore, when the motor 7 is started, the first connecting rod 8 is driven to rotate, and through the transmission of the four-bar linkage, the third connecting rod 12 and the fourth connecting rod 13 generate relative motion, thereby driving the clamping sub-mechanism to perform a stretching or relaxing action.

[0022] See also Figure 3 The present invention provides a technical solution: a mobile phone data cable fixing device, including a clamping sub-mechanism including a screw rod 21 rotatably installed at the connection between the third connecting rod 12 and the fourth connecting rod 13, a rotary motor 22 is fixedly installed at the bottom end of the screw rod 21, and the rotary motor 22 is slidably installed in a slide groove 14 opened on the inner wall of the bottom plate 6, and the outer wall of the screw rod 21 is threadedly installed in a threaded hole 20 opened on the inner wall of the slider 17, a slide plate 18 is fixedly installed on the side wall of the slider 17, a clamp plate 2 is slidably installed on the outer wall of the slide plate 18, and a clamping groove 15 is opened on the inner wall of the clamp plate 2.

[0023] It should be noted that the screw rod 21 is rotatably mounted at the connection between the third connecting rod 12 and the fourth connecting rod 13, one end of the screw rod 21 is fixedly connected to the output shaft of the rotary motor 22, and the other end is threadedly mounted in the threaded hole 20 on the inner wall of the slider 17; Furthermore, when the rotary motor 22 is started, it drives the screw 21 to rotate in the slide groove 14 on the inner wall of the bottom plate 6. Since the screw 21 cooperates with the threaded hole 20 on the inner wall of the slider 17, the rotation of the screw 21 is converted into the up and down movement of the slider 17. Furthermore, the screw 21 is a main transmission component of the clamping sub-mechanism. The screw 21 realizes the linear movement of the slider 17 and its attached slide 18 and the clamping plate 2 through rotational motion, thereby adjusting the spacing between the clamping plates 2 to achieve clamping and releasing of the data cable. Furthermore, the rotary motor 22 is started after receiving the control signal, and its output shaft drives the screw 21 to rotate. Since the rotary motor 22 itself can slide along the slide slot 14, it provides sufficient flexibility to adapt to the clamping requirements of different positions; Furthermore, each rotary motor 22 can be controlled individually, which means that in different test sections, the spacing between the clamping plates 2 of each clamping sub-mechanism can be adjusted separately to test the stress condition of each section, thereby improving the flexibility and accuracy of the test; Furthermore, the clamping plate 2 is slidably mounted on the outer wall of the slide plate 18, and moves together with the slide plate 18 and the slider 17 in a linear motion, and the data line is clamped by adjusting the spacing between the clamping plates 2; Furthermore, the clamping groove 15 on the inner side wall of the clamping plate 2 enables it to tightly clamp the data line while providing sufficient clamping force to maintain a stable position of the data line.

[0024] See also Figure 4 , Figure 5 The present invention provides a technical solution: a mobile phone data line fixing device, comprising a bottom plate 6 with a fixing column 23 fixedly installed on the top away from the motor 7, and a USB plugging and unplugging force detection mechanism fixedly installed on the top of the fixing column 23; The USB plugging and unplugging force detection mechanism includes a chassis 24 fixedly installed on the top of the fixing column 23, a fixing plate 25 fixedly installed on the inner wall of the chassis 24, a connecting plate 27 fixedly installed on the side wall of the fixing plate 25, a connecting shaft 28 rotatably installed on the connecting plate 27 away from the inner wall of the fixing plate 25, a pointer 31 fixedly installed on the top of the outer wall of the connecting shaft 28, a gear 29 fixedly installed on the middle section of the outer wall of the connecting shaft 28, a rack 33 meshingly connected on the outer wall of the gear 29, a sliding rod 34 fixedly installed on the end of the rack 33, a sliding column 35 fixedly installed on the side wall of the sliding rod 34 away from the rack 33, and a USB connection port 4 fixedly installed on the side end of the sliding column 35.

[0025] It should be noted that the fixing column 23 is connected to the top of the bottom plate 6 by welding. As a supporting structure of the USB plugging force detection mechanism, the fixing column 23 provides a stable installation foundation, ensuring the stability and accuracy of the USB plugging force detection mechanism during the test process; Furthermore, the pointer 31 and the gear 29 are connected to the connecting shaft 28 by welding. The pointer 31 is used to indicate the size of the plugging and unplugging force. The gear 29 is meshed with the rack 33 to convert the plugging and unplugging force into rotational motion. The pointer 31 provides an intuitive reading. The meshing of the gear 29 and the rack 33 realizes the conversion of the plugging and unplugging force into rotational motion, thereby improving the accuracy and readability of the test. Furthermore, after the tension detection mechanism is fully extended, the USB connector of the data cable is plugged into the USB connection port 4. When the tension detection mechanism begins to retract, the data cable is subjected to tension, and the USB connection port 4 is subjected to plug-in and pull-out force. This plug-in and pull-out force is transmitted to the gear 29 through the slide column 35, the slide rod 34 and the rack 33, thereby driving the connecting shaft 28 and the pointer 31 to rotate. When the pointer 31 rotates to a certain position, it indicates the size of the plug-in and pull-out force. The tester can read this value and compare it with the factory requirements to determine whether the data cable meets the requirements.

[0026] See also Figure 5 The present invention provides a technical solution: a mobile phone data cable fixing device, comprising a first tension spring 26 fixedly installed on the inner wall of a fixing plate 25, the other end of the first tension spring 26 is fixedly connected to the inner wall of a sliding rod 34, a second tension spring 30 is fixedly installed on the other side of the fixing plate 25 close to the first tension spring 26, and one end of the second tension spring 30 away from the fixing plate 25 is fixedly connected to the sliding rod 34.

[0027] It should be noted that one end of the first tension spring 26 and the second tension spring 30 are connected to the inner wall of the fixed plate 25, and the other end is connected to the inner wall of the sliding rod 34 in the same fixing manner. When the sliding rod 34 is moved by an external force, the first tension spring 26 and the second tension spring 30 will be stretched. Once the external force disappears, the first tension spring 26 and the second tension spring 30 will release their stored elastic potential energy, so that the sliding rod 34 and the connected USB connector 4 return to their initial positions. At this time, the pointer 31 will also return to its initial position to prepare for the next test.

[0028] See also Figure 3 The present invention provides a technical solution: a mobile phone data line fixing device, including a connecting groove 16 opened on the inner wall of a clamping plate 2, a connecting column 19 slidably installed on the inner wall of the connecting groove 16, and the connecting column 19 is fixedly connected to the inner wall of a slide plate 18.

[0029] It should be noted that the connection groove 16 is specially designed for slidingly installing the connection column 19, and its shape and size match those of the connection column 19 to ensure that they can slide smoothly.

[0030] See also Figure 4 , Figure 5 The present invention provides a technical solution: a mobile phone data line fixing device, comprising a limit plate 32 fixedly installed on the top of a chassis 24, and a visible shell 3 fixedly installed on the top of the limit plate 32.

[0031] It should be noted that the limit plate 32 is fixedly installed on the top of the chassis 24 and is located on the rotation path of the pointer 31. When the pointer 31 rotates to a preset maximum angle, the limit plate 32 will prevent it from rotating further, thereby preventing the first tension spring 26 and the second tension spring 30 from being over-tensioned, causing the pointer 31 to be unable to reset.

[0032] Furthermore, when the pointer 31 completely enters the limit plate 32, it indicates that the insertion and extraction force is too large and exceeds the standard range set by the factory, and adjustment or replacement of components is required at this time; Furthermore, the visual shell 3 is fixedly mounted on the top of the limiting plate 32 and is made of transparent acrylic material, so as to observe the working status of the internal components, and prevent external factors such as dust and moisture from invading the interior of the device, thereby protecting the internal components from damage.

[0033] See also Figure 2 The present invention provides a technical solution: a mobile phone data line fixing device, including a first connecting rod 8 and a fourth connecting rod 13 at the connection of which a first rotating shaft 10 is rotatably installed, and a second connecting rod 9 and a third connecting rod 12 at the connection of which a second rotating shaft 11 is rotatably installed.

[0034] It should be noted that when the first connecting rod 8 or the fourth connecting rod 13 is subjected to external force, they will rotate around the first rotating shaft 10, and then be converted into translational motion. The rotational connection structure between the rotating shafts is simple and easy to manufacture and maintain.

[0035] See also Figure 6 The present invention provides a technical solution: a mobile phone data line fixing device, including a bottom plate 6 with a shell 1 fixedly mounted on the outer wall, and a limiting groove 5 is provided on the top of the shell 1, and the limiting groove 5 is used for the movement and opening and closing of the clamping sub-mechanism.

[0036] It should be noted that the fixed connection between the bottom plate 6 and the housing 1 ensures the stability and reliability of the entire device. The housing 1 can effectively prevent external factors from invading the internal mechanism and improve the protection performance of the device.

[0037] Furthermore, the limit groove 5 is a part of the shell 1 and is integrally formed with the shell 1 through processing. The limit groove 5 is intended to guide the movement and opening and closing of the internal sub-mechanism. When the clamping sub-mechanism moves, it will move along the trajectory of the limit groove 5 to prevent it from exceeding the predetermined movement trajectory and position, thereby ensuring the safety and stability of the device.

[0038] Working principle: After the motor 7 receives the start signal, its driving end starts to rotate, driving the first connecting rod 8 to rotate. The rotation of the first connecting rod 8 is transmitted through the four-bar mechanism composed of the second connecting rod 9, the third connecting rod 12, and the fourth connecting rod 13. With the transmission of the four-bar mechanism, the third connecting rod 12 and the fourth connecting rod 13 produce relative motion, thereby driving the clamping sub-mechanism to stretch or relax. When the rotary motor 22 receives the control signal, it starts to rotate, driving the screw 21 to rotate in the slide groove 14 on the inner wall of the bottom plate 6. Since the screw 21 cooperates with the threaded hole 20 on the inner wall of the slider 17, the rotation of the screw 21 is converted into the up and down movement of the slider 17. The up and down movement of the slider 17 drives the slide plate 18 and the clamping plate 2 to move together. The data cable is clamped by adjusting the spacing between the clamping plates 2. The clamping groove 15 on the inner wall of the clamping plate 2 Ensure that the data cable is tightly clamped, and then detect the tension that the data cable itself can withstand. When the tension detection mechanism is fully extended, the USB connector of the data cable is plugged into the USB connection port 4. When the tension detection mechanism starts to retract, the data cable is subjected to tension, and the USB connection port 4 is subjected to plug-in and pull-out force. This plug-in and pull-out force is transmitted to the gear 29 through the slide column 35, the slide rod 34 and the rack 33. The rotation of the gear 29 drives the connecting shaft 28 and the pointer 31 to rotate. When the pointer 31 rotates to a certain position, it indicates the size of the plug-in and pull-out force. When the slide rod 34 is moved by an external force, the first tension spring 26 and the second tension spring 30 will be stretched. Once the external force disappears, the first tension spring 26 and the second tension spring 30 release their stored elastic potential energy, so that the slide rod 34 and the connected USB connection port 4 return to their initial positions.

Claims

1. A mobile phone data cable fixing device, comprising a bottom plate (6), characterized in that: A tension detection mechanism is fixedly mounted on the inner wall of the bottom plate (6); The tension detection mechanism includes a clamping sub-mechanism and a stretching sub-mechanism; The stretching sub-mechanism comprises a motor (7) fixedly mounted on the top of the bottom plate (6); a first connecting rod (8) is fixedly mounted on the driving end of the motor (7); a fourth connecting rod (13) is rotatably mounted on the side end of the first connecting rod (8); a third connecting rod (12) is rotatably mounted on the side end of the fourth connecting rod (13); a second connecting rod (9) is rotatably mounted on the side end of the third connecting rod (12); and a side end of the second connecting rod (9) is rotatably connected to the first connecting rod (8); and a clamping sub-mechanism is rotatably mounted at the connection between the third connecting rod (12) and the fourth connecting rod (13).

2. A mobile phone data cable fixing device as claimed in claim 1, characterized in that: The clamping sub-mechanism comprises a screw rod (21) rotatably mounted at the connection between the third connecting rod (12) and the fourth connecting rod (13); a rotary motor (22) is fixedly mounted at the bottom end of the screw rod (21); the rotary motor (22) is slidably mounted in a slide groove (14) provided on the inner wall of the bottom plate (6); the outer wall of the screw rod (21) is threadedly mounted in a threaded hole (20) provided on the inner wall of the slider (17); a slide plate (18) is fixedly mounted on the side wall of the slider (17); a clamp plate (2) is slidably mounted on the outer wall of the slide plate (18); and a clamping groove (15) is provided on the inner wall of the clamp plate (2).

3. A mobile phone data cable fixing device as claimed in claim 1, characterized in that: A fixing column (23) is fixedly mounted on the top of the bottom plate (6) away from the motor (7), and a USB plugging and unplugging force detection mechanism is fixedly mounted on the top of the fixing column (23); The USB plugging and unplugging force detection mechanism comprises a chassis (24) fixedly mounted on the top of a fixing column (23); a fixing plate (25) is fixedly mounted on the inner side wall of the chassis (24); a connecting plate (27) is fixedly mounted on the side wall of the fixing plate (25); a connecting shaft (28) is rotatably mounted on the connecting plate (27) away from the inner wall of the fixing plate (25); a pointer (31) is fixedly mounted on the top of the outer wall of the connecting shaft (28); a gear (29) is fixedly mounted on the middle section of the outer wall of the connecting shaft (28); a rack (33) is meshingly connected to the outer wall of the gear (29); a sliding rod (34) is fixedly mounted on the end of the rack (33); a sliding column (35) is fixedly mounted on the side wall of the sliding rod (34) away from the rack (33); and a USB connection port (4) is fixedly mounted on the side end of the sliding column (35).

4. A mobile phone data line fixing device as claimed in claim 3, characterized in that: A first tension spring (26) is fixedly mounted on the inner wall of the fixed plate (25), and the other end of the first tension spring (26) is fixedly connected to the inner wall of the slide bar (34). A second tension spring (30) is fixedly mounted on the other side of the fixed plate (25) close to the first tension spring (26), and one end of the second tension spring (30) away from the fixed plate (25) is fixedly connected to the slide bar (34).

5. A mobile phone data line fixing device as claimed in claim 2, characterized in that: The inner wall of the clamping plate (2) is provided with a connecting groove (16), the inner wall of the connecting groove (16) is slidably mounted with a connecting column (19), and the connecting column (19) is fixedly connected to the inner wall of the slide plate (18).

6. A mobile phone data line fixing device as claimed in claim 3, characterized in that: A limit plate (32) is fixedly mounted on the top of the chassis (24), and a visible shell (3) is fixedly mounted on the top of the limit plate (32).

7. A mobile phone data cable fixing device as claimed in claim 1, characterized in that: A first rotating shaft (10) is rotatably mounted at the connection between the first connecting rod (8) and the fourth connecting rod (13), and a second rotating shaft (11) is rotatably mounted at the connection between the second connecting rod (9) and the third connecting rod (12).

8. A mobile phone data cable fixing device as claimed in claim 1, characterized in that: The outer wall of the bottom plate (6) is fixedly mounted with a housing (1), and a limiting groove (5) is provided on the top of the housing (1), wherein the limiting groove (5) is used for the movement and opening and closing of the clamping sub-mechanism.

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