Packaging bag sealing detection device

Abstract

The utility model relates to the technical field of detection devices, in particular to a packaging bag sealing detection device which comprises a device body, stable installation mechanisms are arranged on the surfaces of the device body and a supporting frame, and labor-saving operation mechanisms are arranged on the inner wall of the supporting frame and the surface of a pressing plate body. The surface of the pressing plate body and the surface of the detection assembly are each provided with a convenient-to-replace mechanism. According to the utility model, when the detection device is used, the support frame can be stably mounted on the surface of the device body, so that the phenomenon of detection errors caused by shaking of the support frame in the use process of the detection device is avoided, and the friction force generated when the pressing plate body moves in the use process of the detection device is greatly reduced; the detection device is more labor-saving and convenient to operate, operation is facilitated, the use convenience of the detection device is greatly improved, the detection device can regularly replace the detection assembly, and the detection accuracy of the detection device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a packaging bag sealing detection device. Background Art

[0002] Packaging bags refer to bags used to package various supplies, which make the goods convenient to transport and store during the production and circulation process. Packaging bags are needed in the process of filling tomato sauce. After the filling is completed, the sealing of the packaging bags needs to be tested. Now a packaging bag sealing detection device is needed.

[0003] First, the detection device needs to be installed before use, and the stability of the existing detection device during assembly needs to be further improved. This makes it impossible to stably install the support frame on the surface of the device body when the detection device is used, which easily leads to detection errors due to the shaking of the support frame during the use of the detection device; secondly, the existing detection device is usually not convenient to operate when in use, and is not labor-saving and quick enough. This greatly increases the friction force generated by the movement of the pressure plate body when the detection device is in use, making the detection device not labor-saving and convenient to operate, and is not conducive to operation; thirdly, the detection device needs to regularly replace the detection components when in use, and the replacement steps of the existing detection device when replacing the detection components are often cumbersome, which greatly reduces the convenience of the detection device when in use, and reduces the accuracy of the detection device during detection. Utility Model Content

[0004] The purpose of the utility model is to provide a packaging bag sealing detection device to solve the problems proposed in the above background technology that the stability of the detection device during use needs to be further improved, it is usually inconvenient to operate, it is not labor-saving and fast enough, and the replacement steps when replacing the detection component are often complicated.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a packaging bag sealing detection device, comprising a device body, a support frame is arranged on the surface of the top position of the device body, a pressure plate body is arranged on the surface of the support frame, the pressure plate body and the inner wall of the support frame slide and cooperate with each other, the pressure plate body is located above a weighing scale, a weighing scale is installed on the surface of the top position of the device body, a fixing frame is installed on the surface of the weighing scale, a display is installed on the surface of the fixing frame, a rotating stud is threadedly connected to the surface at the center position of the top of the support frame, a detection component is arranged at the bottom of the pressure plate body, a stable installation mechanism is arranged on the surface of the device body and the support frame, a positioning card block, a positioning card slot and a stable installation part are included in the interior of the stable installation mechanism, a labor-saving operating mechanism is arranged on the inner wall of the support frame and the surface of the pressure plate body, a guide slide groove, an anti-drop card, a mounting plate, a rotating ball, a fastening bolt and a guide slider are included in the interior of the labor-saving operating mechanism, a convenient replacement mechanism is arranged on the surface of the pressure plate body and the detection component, and a fixing seat, a connecting piece and a convenient replacement group are included in the interior of the convenient replacement mechanism.

[0006] Preferably, one end of the rotating stud extends to the interior of the support frame and rotatably cooperates with the surface of the device body. The surface thread of the rotating stud is provided with an adjusting screw barrel. The adjusting screw barrel and the surface of the rotating stud are rotatably cooperated with each other. The surface of the adjusting screw barrel is threadedly fastened to the surface of the pressure plate body through a screw.

[0007] Preferably, the stable mounting portion is arranged on the surface of the device body and the support frame, and the stable mounting portion is composed of a stretch spring, an arc-shaped clip and a mounting stud. The surface at the bottom position of the support frame is installed with a positioning block, and the surface of the device body is provided with a positioning slot. The positioning slot and the surface of the positioning block are engaged with each other. The surface of the positioning block is provided with a groove, and an arc-shaped clip is arranged inside the groove. The arc-shaped clip and the inner wall of the groove are slidably engaged with each other.

[0008] Preferably, the arc-shaped clamp and the surface of the device body are snap-fitted with each other, and a stretch spring is installed on the surface of the arc-shaped clamp, one end of the stretch spring is fixed to the inner wall of the groove, and the surface of the support frame is threadedly connected with a mounting stud, one end of the mounting stud passes through the support frame and is threadedly fastened to the surface of the device body.

[0009] Preferably, guide sliders are installed on the surfaces of both ends of the pressure plate body, and a guide groove is provided on the inner wall of the support frame. The guide groove and the surface of the guide slider are slidably matched with each other, and a mounting plate is provided on the surface of the guide slider. Anti-slip clamps are installed on the surface of the guide slider, and the anti-slip clamps are snap-fitted with the surface of the mounting plate.

[0010] Preferably, the surface of the mounting plate is provided with rotating balls at equal intervals, and the rotating balls and the surface of the mounting plate are rotatably matched with each other. The surface of the mounting plate is threadedly connected with fastening bolts, and one end of the fastening bolt passes through the mounting plate and is threadedly fastened to the surface of the guide slider.

[0011] Preferably, the convenient replacement group is arranged on the surface of the pressure plate body and the detection component, and the convenient replacement group is composed of a card body and a groove body. A fixed seat is installed on the surface at the bottom position of the pressure plate body, and a connecting piece is installed on the top of the detection component, and one end of the connecting piece extends to the interior of the fixed seat.

[0012] Preferably, a clamp body is installed on the surface at the top position of the connecting piece, and the clamp body and the inner wall of the fixing seat are snap-fitted with each other. The inner wall of the fixing seat is provided with a groove body, and the groove body and the surface of the connecting piece are slidably fitted with each other.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the packaging bag sealing detection device not only enables the support frame to be stably mounted on the surface of the device body when the detection device is in use, thereby avoiding the phenomenon of detection errors caused by the shaking of the support frame during the use of the detection device, but also greatly reduces the friction force generated by the movement of the pressure plate body when the detection device is in use, making the detection device more labor-saving and convenient to operate, and greatly improving the convenience of the detection device when in use, so that the detection device can regularly replace the detection components, so that the accuracy of the detection device during detection is further improved;

[0014] 1. By providing a stable installation mechanism, the support frame drives the positioning card block to be clamped into the interior of the positioning card slot, and the support frame is positioned and installed under the clamping action of the positioning card block and the positioning card slot. At this time, the arc-shaped card piece is driven to move under the elastic force of the extension spring inside the groove, so that the arc-shaped card piece is clamped into the interior of the device body, and the support frame is prevented from loosening under the clamping action of the extension spring and the arc-shaped card piece. Subsequently, the user tightens the installation studs on the surface of the support frame, and under the action of the installation studs, the support frame is stably installed on the surface of the device body, avoiding the phenomenon of loosening and displacement of the support frame during use, and realizing the function of stable installation of the detection device, so that the support frame can be stably installed on the surface of the device body when the detection device is used, avoiding the phenomenon of detection errors caused by shaking of the support frame during the use of the detection device;

[0015] 2. By providing a labor-saving operating mechanism, the pressure plate body drives the guide slider to slide inside the guide slide groove, and the pressure plate body is guided under the joint action of the guide slider and the guide slide groove. The user tightens the fastening bolts on the surface of the mounting plate, and the mounting plate is installed on the surface of the guide slider under the action of the fastening bolts. When the guide slider moves, the guide slider drives the mounting plate to move inside the guide slide groove, and the rotating ball rotates on the surface of the mounting plate. Under the action of the rotating ball, the friction force generated when the mounting plate slides inside the guide slide groove is greatly reduced, so that the pressure plate body is more labor-saving and quick during the lifting movement, and the labor-saving movement function of the detection device is realized, so that the friction force generated by the pressure plate body during the movement when the detection device is used is greatly reduced, making the detection device more labor-saving and convenient to operate, which is conducive to operation;

[0016] 3. By providing a convenient replacement mechanism, the user pulls the detection component downward to make the detection component slide inside the groove body. At this time, the detection component drives the connecting part to slide inside the groove body, and the connecting part drives the card body away from the inner wall of the fixed seat, thereby removing the detection component from the surface of the fixed seat, and replacing the detection component in time, realizing the function of convenient replacement of the detection component of the detection device, thereby greatly improving the convenience of using the detection device, enabling the detection device to regularly replace the detection component, and further improving the accuracy of the detection device during detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 3 For the utility model Figure 2 An enlarged structural diagram of the stable mounting mechanism;

[0020] Figure 4 For the utility model Figure 2 An enlarged structural diagram of the labor-saving operating mechanism;

[0021] Figure 5 It is an enlarged structural schematic diagram of the convenient replacement mechanism of the utility model.

[0022] In the figure: 1. device body; 101. support frame; 102. weighing scale; 103. display; 104. pressure plate body; 105. fixing frame; 106. detection component; 107. adjusting screw barrel; 108. rotating stud; 2. stable installation mechanism; 201. positioning block; 202. positioning slot; 203. stable installation part; 2031. extension spring; 2032. arc-shaped clamp; 2033. mounting stud; 3. labor-saving operation mechanism; 301. guide slide; 302. anti-drop clamp; 303. mounting plate; 304. rotating ball; 305. fastening bolt; 306. guide slide; 4. convenient replacement mechanism; 401. fixing seat; 402. connecting piece; 403. convenient replacement group; 4031. clamp body; 4032. slot body. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] The utility model provides a packaging bag sealing detection device with a structure as follows Figure 1 and Figure 2 As shown, it includes a device body 1, a support frame 101 is provided on the surface at the top position of the device body 1, a pressure plate body 104 is provided on the surface of the support frame 101, the pressure plate body 104 and the inner wall of the support frame 101 slide together, the pressure plate body 104 is located above the weighing scale 102, the weighing scale 102 is installed on the surface at the top position of the device body 1, a fixing frame 105 is installed on the surface of the weighing scale 102, a display 103 is installed on the surface of the fixing frame 105, a rotating stud 108 is threadedly connected to the surface at the center position of the top of the support frame 101, one end of the rotating stud 108 extends to the inside of the support frame 101 and rotates with the surface of the device body 1, an adjusting screw barrel 107 is threadedly sleeved on the surface of the rotating stud 108, the adjusting screw barrel 107 and the surface of the rotating stud 108 rotate together, the surface of the adjusting screw barrel 107 is threadedly fastened with the surface of the pressure plate body 104 by screws, and a detection component 106 is provided at the bottom of the pressure plate body 104.

[0025] Furthermore, if Figure 2 and Figure 3As shown, the surfaces of the device body 1 and the support frame 101 are both provided with a stable installation mechanism 2, the interior of the stable installation mechanism 2 includes a positioning block 201, a positioning slot 202 and a stable installation portion 203, the stable installation portion 203 is arranged on the surfaces of the device body 1 and the support frame 101, the stable installation portion 203 is composed of a stretch spring 2031, an arc-shaped clamp 2032 and a mounting stud 2033, the surface at the bottom position of the support frame 101 is installed with a positioning block 201, the surface of the device body 1 is opened with a positioning slot 202, the positioning slot 202 and the positioning block 20 1, the surfaces of the positioning block 201 are all snap-fitted with each other, the surfaces of the positioning block 201 are all provided with grooves, and the interior of the grooves is provided with arc-shaped clamps 2032, the arc-shaped clamps 2032 and the inner wall of the grooves are slidably matched with each other, the arc-shaped clamps 2032 and the surface of the device body 1 are snap-fitted with each other, and the surfaces of the arc-shaped clamps 2032 are all installed with extension springs 2031, one end of the extension springs 2031 is fixed to the inner wall of the groove, the surface of the support frame 101 is threadedly connected with a mounting stud 2033, one end of the mounting stud 2033 passes through the support frame 101 and is threadedly fastened with the surface of the device body 1.

[0026] During implementation, the support frame 101 drives the positioning block 201 to be stuck into the inside of the positioning slot 202, and the support frame 101 is positioned and installed under the engagement of the positioning block 201 and the positioning slot 202. At this time, the arc-shaped clamp 2032 is driven to move under the elastic force of the extension spring 2031 inside the groove, so that the arc-shaped clamp 2032 is stuck to the inside of the device body 1, and the support frame 101 is prevented from loosening under the engagement of the extension spring 2031 and the arc-shaped clamp 2032. Subsequently, the user tightens the installation studs 2033 on the surface of the support frame 101, and under the action of the installation studs 2033, the support frame 101 is stably installed on the surface of the device body 1, avoiding the support frame 101 from loosening and displacement during use, so as to realize the function of stable installation of the detection device.

[0027] Furthermore, if Figure 2 and Figure 4As shown, the inner wall of the support frame 101 and the surface of the pressure plate body 104 are both provided with a labor-saving operating mechanism 3, the interior of the labor-saving operating mechanism 3 includes a guide groove 301, an anti-dropping clamp 302, a mounting plate 303, a rotating ball 304, a fastening bolt 305 and a guide slider 306, and the surfaces of both ends of the pressure plate body 104 are both installed with guide sliders 306, and the inner wall of the support frame 101 is provided with a guide groove 301, and the surfaces of the guide groove 301 and the guide slider 306 slide with each other, and the guide slider The surface of 306 is provided with a mounting plate 303, and the surface of the guide slider 306 is installed with an anti-slip clamp 302, the anti-slip clamp 302 and the surface of the mounting plate 303 are engaged with each other, the surface of the mounting plate 303 is provided with rotating balls 304 with equal intervals, the rotating balls 304 and the surface of the mounting plate 303 are rotatably engaged with each other, the surface of the mounting plate 303 is threadedly connected with a fastening bolt 305, one end of the fastening bolt 305 passes through the mounting plate 303 and is threadedly fastened to the surface of the guide slider 306.

[0028] During implementation, the pressure plate body 104 drives the guide slider 306 to slide inside the guide slot 301, and the pressure plate body 104 is guided under the joint action of the guide slider 306 and the guide slot 301. The user tightens the fastening bolts 305 on the surface of the mounting plate 303, and the mounting plate 303 is installed on the surface of the guide slider 306 under the action of the fastening bolts 305. When the guide slider 306 moves, the guide slider 306 drives the mounting plate 303 to move inside the guide slot 301, and the rotating ball 304 rotates on the surface of the mounting plate 303. Under the action of the rotating ball 304, the friction force generated when the mounting plate 303 slides inside the guide slot 301 is greatly reduced, thereby making the pressure plate body 104 more labor-saving and quick during the lifting movement, so as to realize the function of labor-saving movement of the detection device.

[0029] Furthermore, if Figure 2 and Figure 5 As shown, the surfaces of the pressure plate body 104 and the detection component 106 are both provided with a convenient replacement mechanism 4, the interior of the convenient replacement mechanism 4 includes a fixed seat 401, a connecting piece 402 and a convenient replacement group 403, the convenient replacement group 403 is arranged on the surfaces of the pressure plate body 104 and the detection component 106, the convenient replacement group 403 is composed of a clamp body 4031 and a groove body 4032, the surface at the bottom position of the pressure plate body 104 is installed with a fixed seat 401, the top of the detection component 106 is installed with a connecting piece 402, one end of the connecting piece 402 extends to the interior of the fixed seat 401, the surface at the top position of the connecting piece 402 is installed with a clamp body 4031, the clamp body 4031 and the inner wall of the fixed seat 401 are snap-fitted with each other, the inner wall of the fixed seat 401 is provided with a groove body 4032, and the groove body 4032 and the surface of the connecting piece 402 are slidably matched with each other.

[0030] During implementation, the user pulls the detection component 106 downward so that the detection component 106 slides inside the groove 4032. At this time, the detection component 106 drives the connecting piece 402 to slide inside the groove 4032, and the connecting piece 402 drives the card body 4031 away from the inner wall of the fixing seat 401, thereby removing the detection component 106 from the surface of the fixing seat 401, and replacing the detection component 106 in time to realize the function of the detection device to facilitate the replacement of the detection component 106.

[0031] Working principle: When in use, first place the device body 1 at the designated position, and the user places the support frame 101 on the surface of the device body 1. At this time, the support frame 101 drives the positioning block 201 to be clamped into the inside of the positioning slot 202. Under the clamping action of the positioning block 201 and the positioning slot 202, the support frame 101 is positioned and installed. At this time, the arc-shaped clamp 2032 is driven to move under the elastic force of the extension spring 2031 inside the groove, so that the arc-shaped clamp 2032 is clamped into the inside of the device body 1. Under the clamping action of the extension spring 2031 and the arc-shaped clamp 2032 The support frame 101 is prevented from loosening under the snapping action, and then the user tightens the mounting studs 2033 on the surface of the support frame 101, and the support frame 101 is stably mounted on the surface of the device body 1 under the action of the mounting studs 2033, avoiding the support frame 101 from loosening and displacement during use, so as to realize the function of stable installation of the detection device, so that the support frame 101 can be stably mounted on the surface of the device body 1 when the detection device is used, avoiding the phenomenon of detection errors caused by shaking of the support frame 101 during the use of the detection device.

[0032] Subsequently, the user rotates the rotating stud 108 on the surface of the support frame 101, and the threaded cooperation of the rotating stud 108 and the adjusting screw 107 drives the pressure plate body 104 to move up and down inside the support frame 101. When the pressure plate body 104 moves, the pressure plate body 104 drives the detection component 106 to move downward until it contacts the packaging bag placed on the surface of the weighing scale 102. The downward pressure of the pressure plate body 104 and the detection component 106 is recorded through the readings of the display 103, and the sealing of the packaging bag is detected under the joint action of the pressure plate body 104 and the detection component 106.

[0033] When the pressing plate body 104 moves, the pressing plate body 104 drives the guide slider 306 to slide inside the guide slide groove 301, and the pressing plate body 104 is guided under the joint action of the guide slider 306 and the guide slide groove 301, and the user tightens the fastening bolts 305 on the surface of the mounting plate 303, and the mounting plate 303 is installed on the surface of the guide slider 306 under the action of the fastening bolts 305. When the guide slider 306 moves, the guide slider 306 drives the mounting plate 303 to move inside the guide slide groove 301, and the rotating ball 304 rotates on the surface of the mounting plate 303. Under the action of the rotating ball 304, the friction force generated when the mounting plate 303 slides inside the guide slide groove 301 is greatly reduced, thereby making the pressing plate body 104 more labor-saving and quick during the lifting and lowering movement, so as to realize the function of the labor-saving movement of the detection device, thereby making the friction force generated by the pressing plate body 104 during the movement when the detection device is used greatly reduced, making the detection device more labor-saving and convenient to operate, and facilitating operation.

[0034] Subsequently, when the detection component 106 needs to be replaced after being used for a long time, the user pulls the detection component 106 downward so that the detection component 106 slides inside the groove 4032. At this time, the detection component 106 drives the connecting piece 402 to slide inside the groove 4032, and the connecting piece 402 drives the card body 4031 away from the inner wall of the fixing seat 401, thereby removing the detection component 106 from the surface of the fixing seat 401. The detection component 106 is replaced in time to realize the function of the detection device to facilitate the replacement of the detection component 106, thereby greatly improving the convenience of the detection device when used, and enabling the detection device to regularly replace the detection component 106, so that the accuracy of the detection device during detection is further improved, and finally completing the use of the detection device.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A packaging bag sealing detection device, comprising a device body (1), characterized in that: A support frame (101) is arranged on the surface of the top position of the device body (1), and a pressure plate body (104) is arranged on the surface of the support frame (101). The pressure plate body (104) and the inner wall of the support frame (101) are slidably matched with each other. The pressure plate body (104) is located above a weighing scale (102). A weighing scale (102) is installed on the surface of the top position of the device body (1), and a fixing frame (105) is installed on the surface of the weighing scale (102). A display (103) is installed on the surface of the fixing frame (105). A rotating stud (108) is threadedly connected to the surface of the top center position of the support frame (101). A detection component (106) is arranged at the bottom of the pressure plate body (104). The device body (1) and the support frame (1 01) are provided with a stable installation mechanism (2), the interior of the stable installation mechanism (2) includes a positioning block (201), a positioning slot (202) and a stable installation part (203); the inner wall of the support frame (101) and the surface of the pressure plate body (104) are provided with a labor-saving operating mechanism (3), the interior of the labor-saving operating mechanism (3) includes a guide slide groove (301), an anti-dropping card (302), a mounting plate (303), a rotating ball (304), a fastening bolt (305) and a guide slider (306); the surfaces of the pressure plate body (104) and the detection component (106) are provided with a convenient replacement mechanism (4), the interior of the convenient replacement mechanism (4) includes a fixing seat (401), a connecting piece (402) and a convenient replacement group (403).

2. A packaging bag sealing detection device according to claim 1, characterized in that: One end of the rotating stud (108) extends to the interior of the support frame (101) and is rotatably matched with the surface of the device body (1); an adjusting screw barrel (107) is threadedly sleeved on the surface of the rotating stud (108); the adjusting screw barrel (107) and the surface of the rotating stud (108) are rotatably matched with each other; the surface of the adjusting screw barrel (107) is threadedly fastened to the surface of the pressure plate body (104) via a screw.

3. A packaging bag sealing detection device according to claim 1, characterized in that: The stable mounting portion (203) is arranged on the surface of the device body (1) and the support frame (101), and the stable mounting portion (203) is composed of an extension spring (2031), an arc-shaped clamping piece (2032) and a mounting stud (2033). The surface at the bottom position of the support frame (101) is installed with a positioning clamping block (201). The surface of the device body (1) is provided with a positioning clamping groove (202). The positioning clamping groove (202) and the surface of the positioning clamping block (201) are mutually engaged. The surface of the positioning clamping block (201) is provided with a groove, and an arc-shaped clamping piece (2032) is arranged inside the groove. The arc-shaped clamping piece (2032) and the inner wall of the groove are mutually slidably engaged.

4. A packaging bag sealing detection device according to claim 3, characterized in that: The arc-shaped clamp (2032) and the surface of the device body (1) are mutually engaged and matched, and an extension spring (2031) is installed on the surface of the arc-shaped clamp (2032), one end of the extension spring (2031) is fixed to the inner wall of the groove, and the surface of the support frame (101) is threadedly connected with a mounting stud (2033), and one end of the mounting stud (2033) passes through the support frame (101) and is threadedly fastened to the surface of the device body (1).

5. The packaging bag sealing detection device according to claim 1, characterized in that: The surfaces of both ends of the pressure plate body (104) are installed with guide sliders (306), the inner wall of the support frame (101) is provided with a guide slot (301), the guide slot (301) and the surface of the guide slider (306) are slidably matched with each other, the surface of the guide slider (306) is provided with a mounting plate (303), the surface of the guide slider (306) is installed with an anti-slipping clamp (302), and the anti-slipping clamp (302) and the surface of the mounting plate (303) are snap-fitted with each other.

6. A packaging bag sealing detection device according to claim 5, characterized in that: The surface of the mounting plate (303) is provided with rotating balls (304) at equal intervals, and the rotating balls (304) and the surface of the mounting plate (303) are rotatably matched with each other. The surface of the mounting plate (303) is threadedly connected with a fastening bolt (305), and one end of the fastening bolt (305) passes through the mounting plate (303) and is threadedly fastened to the surface of the guide slider (306).

7. The packaging bag sealing detection device according to claim 1, characterized in that: The convenient replacement group (403) is arranged on the surface of the pressure plate body (104) and the detection component (106), and the convenient replacement group (403) is composed of a clamp body (4031) and a groove body (4032). The surface at the bottom position of the pressure plate body (104) is installed with a fixing seat (401), and the top of the detection component (106) is installed with a connecting piece (402), and one end of the connecting piece (402) extends to the inside of the fixing seat (401).

8. A packaging bag sealing detection device according to claim 7, characterized in that: The surface at the top position of the connecting piece (402) is installed with a clamping body (4031), and the clamping body (4031) and the inner wall of the fixing seat (401) are mutually engaged, and the inner wall of the fixing seat (401) is provided with a groove body (4032), and the groove body (4032) and the surface of the connecting piece (402) are mutually slidably engaged.

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