A device applied to charging pile measurement calibration and detection

Abstract

The application relates to the technical field of measurement, in particular to a device applied to charging pile measurement, calibration and detection, which comprises a lower shell and an upper shell, a connecting mechanism is arranged between the lower shell and the upper shell, a clamping mechanism is arranged between the lower shell and the upper shell, a sliding mechanism is arranged on the lower surface of the lower shell, a supporting mechanism is arranged in the lower shell and the upper shell, and a butt joint mechanism is arranged in the lower shell and the upper shell, wherein the butt joint mechanism comprises a detection device and a buffer pad. The existence of the arc-shaped clamping block enables the arc-shaped clamping block to be attached to the charging head, the arc-shaped embedded blocks on the arc-shaped clamping block are clamped on the charging head, and the fixing effect of the charging head is improved. The triangular clamping blocks and the arc-shaped clamping blocks on the rectangular clamping plate ensure the protection effect of the triangular clamping blocks on the rectangular protective cap, meanwhile, the clamping effect of the charging head on the butt joint is improved, and the installation stability of the charging head is improved.

Description

A device for metering calibration and verification of charging piles Technical Field

[0001] This invention relates to the field of measurement technology, and in particular to a device for the metrological calibration and verification of charging piles. Background Technology

[0002] With the gradual promotion of electric vehicles, my country has become the world's largest owner of electric vehicles, and the demand for electric vehicle charging has increased significantly. Apart from some electric buses with dedicated charging stations and some private cars with private charging spaces, most private electric vehicles, ride-hailing vehicles using pure electric vehicles, and taxis in megacities such as Beijing, Shanghai, Guangzhou, and Shenzhen need to charge at open public charging stations. There are a large number of charging transactions here, and the function of charging piles as the basis for charging transactions has been amplified to a very important position.

[0003] Charging piles have developed rapidly in my country, but there is a lack of relevant product technical specifications and relatively few standards for metering. Many charging pile manufacturers and operators either lack understanding of metering requirements or intentionally manipulate metering, charging consumers for electricity losses that they shouldn't bear, or simply using flawed metering to overcharge consumers. Currently, it is common for consumers to seek help and intervention from quality inspection departments because of discrepancies between the charging pile's meter reading and the vehicle's registered charge.

[0004] When calibrating a charging station, the plug of the charging station needs to be inserted into the testing equipment. The testing equipment detects the voltage increased by the charging station to calibrate it. During this process, the plug needs to be locked in the equipment to ensure the stability of the testing. However, the testing equipment does not have a positioning structure for the plug, so the plug is easy to loosen after insertion, which affects the calibration effect. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a device for metering calibration and verification of charging piles.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a device for metering calibration and verification of charging piles, comprising a lower housing and an upper housing, a connecting mechanism between the lower housing and the upper housing, a locking mechanism between the lower housing and the upper housing, a sliding mechanism below the lower housing, a supporting mechanism inside the lower housing and the upper housing, and a docking mechanism inside the lower housing and the upper housing;

[0007] The docking mechanism includes a detection device and a buffer pad, both of which are fixedly installed inside the lower housing. The buffer pad is positioned on both sides of the detection device. A rectangular base is fixedly installed on the upper surface of the detection device. A docking connector is fixedly installed on the upper surface of the rectangular base. A rectangular clamping plate is fixedly installed on the upper surface of the rectangular base. A triangular locking block is fixedly installed on the outer side wall of the rectangular clamping plate. An arc-shaped locking block is fixedly installed on the inner side wall of the rectangular clamping plate. An arc-shaped embedding block is fixedly installed on the inner side wall of the arc-shaped locking block. A rectangular protective cap is movably engaged with the outer side of the rectangular base.

[0008] As a preferred embodiment of the present invention, the rectangular clamp is made of an elastic material, and the inner sidewall of the rectangular protective cap is provided with a groove for an opening and closing triangular locking block, and the rectangular clamp is in a vertical state when locked.

[0009] As a preferred embodiment of the present invention, the support mechanism includes an arc-shaped plate, which is fixedly installed on the upper surface of the detection equipment. A circular rotating shaft is movably engaged within the arc-shaped plate. A rotating rod is fixedly installed on the side wall of the circular rotating shaft. An elastic rod is fixedly installed at the end of the rotating rod. A rectangular sleeve is fixedly installed on the inner side wall of the upper housing, and the elastic rod is movably engaged within the rectangular sleeve.

[0010] As a preferred embodiment of the present invention, the connecting mechanism includes a rectangular support plate, which is fixedly installed on the side walls of the lower housing and the upper housing, and the rectangular support plate is installed on the side where the lower housing and the upper housing fit together. An inclined groove is formed on the side walls of the two rectangular support plates that are close to each other. A connecting soft skin layer is fixedly installed on the outer side wall of the rectangular support plate. The connecting soft skin layer is elastic and covers the rectangular support plate. A rivet is fixedly installed on the side wall of the connecting soft skin layer. The connecting soft skin layer is fixedly installed on the side wall of the rectangular support plate by the rivet.

[0011] As a preferred embodiment of the present invention, the engaging mechanism includes an upper cover plate, which is fixedly installed on the side wall of the upper housing. A lower engaging plate is fixedly installed on the side wall of the upper housing. A dovetail plate is engaged within the lower engaging plate. The dovetail plate has a trapezoidal cross-sectional shape. A circular lifting rod is fixedly installed on the side wall of the dovetail plate. A spring is fixedly installed on the side wall of the circular lifting rod. The spring is fixedly installed on the inner side wall of the upper cover plate. A trapezoidal upper and lower slider is fixedly installed on the side wall of the dovetail plate. The trapezoidal upper and lower slider is movably engaged within a trapezoidal groove. A push rectangular slide is fixedly installed on the side wall of the trapezoidal upper and lower slider. The push rectangular slide is in contact with the side wall of the upper cover plate.

[0012] As a preferred embodiment of the present invention, the sliding mechanism includes a rectangular support leg, which is fixedly installed on the lower surface of the lower housing. An outer movable sleeve is fixedly installed on the rectangular support leg. A pulley is movably installed on the side wall of the rectangular support leg. A pull rod is movably engaged inside the outer movable sleeve. A rectangular positioning groove is provided on the side wall of the pull rod. A rectangular positioning block is fixedly installed inside the outer movable sleeve. The rectangular positioning block is movably engaged in the rectangular positioning groove. A spherical clip is movably engaged inside the outer movable sleeve. A spring piece is provided below the spherical clip. The spherical clip is engaged below the end of the pull rod.

[0013] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0014] 1. The presence of the arc-shaped locking block allows it to fit snugly against the outside of the charging head, and the arc-shaped embedded block on the arc-shaped locking block engages with the charging head, improving the fixing effect of the charging head. This device, through the triangular locking block and arc-shaped locking block on the rectangular clamp plate, ensures the protective effect of the rectangular protective cap on the triangular locking block, while improving the engagement effect of the charging head on the connector, thus improving the installation stability of the charging head.

[0015] 2. A rectangular protective cap is provided on the rectangular base. When the connector is not connected to the charging head, the rectangular protective cap can block dust and ensure the protection of the connector.

[0016] 3. The elastic rod can be engaged in the rectangular sleeve. The elastic rod is an elastic component, which makes it easier to engage in the rectangular sleeve, thereby supporting the lower and upper housings, ensuring the stability of the equipment after installation, preventing relative displacement between the lower and upper housings, improving the stability of the lower and upper housings after opening, preventing the lower and upper housings from closing together, and improving the ease of operation.

[0017] 4. The soft connecting layer connects the two rectangular support plates when they rotate relative to each other, ensuring the support effect of the equipment, strengthening the connection between the lower and upper shells, and facilitating the control of the rotation of the lower and upper shells.

[0018] 5. A circular lifting rod and a spring are provided on the dovetail plate. With the presence of the circular lifting rod and the spring, when the dovetail plate moves up and down, the circular lifting rod will pull the spring to deform and generate a reverse elastic force to make the dovetail plate return to its original position, which improves the convenience of opening and closing the equipment.

[0019] 6. By pulling the lever, the pulleys slide on the ground, enabling the equipment to be moved to charging stations in different locations, thus improving the ease of operation.

[0020] 7. The lower casing is supported by rectangular support legs. The presence of the rectangular support legs allows the lower casing to be suspended in the air, ensuring the stability of the equipment when placed on the ground. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the front structure of the present invention;

[0022] Figure 2 is a schematic diagram of the structure on the back of the present invention;

[0023] Figure 3 is a schematic diagram of the structure of the present invention viewed from below;

[0024] Figure 4 is a schematic diagram of the support mechanism of the present invention;

[0025] Figure 5 is a schematic diagram of the sliding mechanism of the present invention;

[0026] Figure 6 is a schematic diagram of the connection mechanism of the present invention;

[0027] Figure 7 is a schematic diagram of the engaging mechanism of the present invention;

[0028] Figure 8 is a structural schematic diagram of the support mechanism of the present invention;

[0029] Figure 9 is a schematic diagram of the docking mechanism of the present invention.

[0030] The components include: 1. Lower shell; 2. Upper shell; 3. Testing equipment; 4. Buffer pad; 11. Top cover plate; 12. Lower clamping plate; 13. Pushing rectangular sliding plate; 14. Trapezoidal upper and lower sliders; 15. Trapezoidal slide groove; 16. Dovetail long plate; 17. Circular lifting rod; 18. Spring; 21. Rectangular support plate; 22. Connecting soft skin layer; 23. Rivet; 31. Outer movable sleeve; 32. Rectangular support leg; 33. Pulley; 34. Pull-out rod; 35. Rectangular positioning groove; 36. Rectangular positioning block; 37. Spherical clamp; 41. Circular rotating shaft; 42. Arc plate; 43. Rotating rod; 44. Elastic rod; 45. Rectangular sleeve; 51. Rectangular base; 52. Rectangular protective cap; 53. Butt joint; 54. Rectangular clamping plate; 55. Triangular clamping block; 56. Arc-shaped clamping block; 57. Arc-shaped embedded block. Detailed Implementation

[0031] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0032] Example:

[0033] As shown in Figures 1, 2, 3, 4, 5, 6, 7, 8 and 9, a device for metering calibration and verification of charging piles includes a lower housing 1 and an upper housing 2. A connecting mechanism is provided between the lower housing 1 and the upper housing 2, a locking mechanism is provided between the lower housing 1 and the upper housing 2, a sliding mechanism is provided below the lower housing 1, a support mechanism is provided inside the lower housing 1 and the upper housing 2, and a docking mechanism is provided inside the lower housing 1 and the upper housing 2.

[0034] The docking mechanism includes a testing device 3 and a buffer pad 4. Both the testing device 3 and the buffer pad 4 are fixedly installed inside the lower housing 1, and the buffer pad 4 is located on both sides of the testing device 3. A rectangular base 51 is fixedly installed on the upper surface of the testing device 3. A docking joint 53 is fixedly installed on the upper surface of the rectangular base 51. A rectangular clamping plate 54 is fixedly installed on the upper surface of the rectangular base 51. A triangular locking block 55 is fixedly installed on the outer side wall of the rectangular clamping plate 54. An arc-shaped locking block 56 is fixedly installed on the inner side wall of the rectangular clamping plate 54. An arc-shaped embedding block 57 is fixedly installed on the inner side wall of the arc-shaped locking block 56. A rectangular protective cap 52 is movably engaged and installed on the outer side of the rectangular base 51.

[0035] The rectangular clamp 54 is made of a flexible material, and the inner wall of the rectangular protective cap 52 has a groove for the opening and closing triangular locking block 55. When locked, the rectangular clamp 54 is in a vertical state.

[0036] The charging head of the charging pile is inserted into the docking connector 53 to detect the voltage of the charging head, facilitating the measurement of the charging head's voltage and improving the accuracy of power consumption detection. A rectangular protective cap 52 is provided on the rectangular base 51. When the docking connector 53 is not connected to the charging head, the rectangular protective cap 52 can block dust and ensure the protection of the docking connector 53. When the rectangular protective cap 52 and the rectangular clamp 54 are engaged, the triangular locking block 55 on the side wall of the rectangular clamp 54 engages with the rectangular protective cap 52, thus fixing the rectangular protective cap 52. When the charging head and the docking connector 53 are engaged, the presence of the arc-shaped locking block 56 allows the arc-shaped locking block 56 to fit against the outside of the charging head, and the arc-shaped embedded block 57 on the arc-shaped locking block 56 engages with the charging head, improving the fixing effect of the charging head.

[0037] The support mechanism includes an arc plate 42, which is fixedly installed on the upper surface of the testing equipment 3. A circular rotating shaft 41 is movably engaged inside the arc plate 42. A rotating rod 43 is fixedly installed on the side wall of the circular rotating shaft 41. An elastic rod 44 is fixedly installed on the end of the rotating rod 43. A rectangular sleeve 45 is fixedly installed on the inner side wall of the upper housing 2. The elastic rod 44 is movably engaged inside the rectangular sleeve 45.

[0038] After the lower housing 1 and the upper housing 2 are opened and closed, the rotating rod 43 is rotated to drive the circular rotating shaft 41 to rotate within the arc plate 42, thereby controlling the rotation of the circular rotating shaft 41 and making its rotation more stable. When the circular rotating shaft 41 rotates, it will drive the rotating rod 43 to change its angle, allowing the elastic rod 44 at the end of the rotating rod 43 to engage in the rectangular sleeve 45. The elastic rod 44 is an elastic component, which allows it to engage more easily in the rectangular sleeve 45, thus providing support between the lower housing 1 and the upper housing 2. This ensures the stability of the equipment after installation, prevents relative displacement between the lower housing 1 and the upper housing 2, improves the stability of the lower housing 1 and the upper housing 2 after opening, prevents the lower housing 1 and the upper housing 2 from closing together, and improves the ease of operation.

[0039] The connecting mechanism includes a rectangular support plate 21, which is fixedly installed on the side walls of the lower housing 1 and the upper housing 2. The rectangular support plate 21 is installed on the side where the lower housing 1 and the upper housing 2 are in contact. An inclined groove is provided on the side walls of the two rectangular support plates 21 that are close to each other. A connecting soft skin layer 22 is fixedly installed on the outer side wall of the rectangular support plate 21. The connecting soft skin layer 22 is elastic and covers the rectangular support plate 21. A rivet 23 is fixedly installed on the side wall of the connecting soft skin layer 22. The connecting soft skin layer 22 is fixedly installed on the side wall of the rectangular support plate 21 by the rivet 23.

[0040] When the lower housing 1 and the upper housing 2 open and close, the lower housing 1 will drive the rectangular support plate 21 to rotate. When the rectangular support plate 21 rotates, a groove is provided on the side wall where the two rectangular support plates 21 are in contact, which facilitates the control of the rotation of the rectangular support plate 21. A connecting soft layer 22 is provided on the outside of the rectangular support plate 21 for connection. With the presence of the connecting soft layer 22, when the two rectangular support plates 21 rotate relative to each other, the connecting soft layer 22 connects the two rectangular support plates 21, ensuring the support effect of the equipment, making the connection between the lower housing 1 and the upper housing 2 stronger, and facilitating the control of the rotation of the lower housing 1 and the upper housing 2.

[0041] The engaging mechanism includes an upper cover plate 11, which is fixedly installed on the side wall of the upper housing 2. A lower locking plate 12 is fixedly installed on the side wall of the upper housing 2. A dovetail plate 16 is engaged and installed inside the lower locking plate 12. The dovetail plate 16 has a trapezoidal cross-sectional shape. A circular lifting rod 17 is fixedly installed on the side wall of the dovetail plate 16. A spring 18 is fixedly installed on the side wall of the circular lifting rod 17. The spring 18 is fixedly installed on the inner side wall of the upper cover plate 11. A trapezoidal upper and lower slider 14 is fixedly installed on the side wall of the dovetail plate 16. The trapezoidal upper and lower slider 14 is movably engaged and installed in a trapezoidal slide groove 15. A push rectangular slide plate 13 is fixedly installed on the side wall of the trapezoidal upper and lower slider 14. The push rectangular slide plate 13 is in contact with the side wall of the upper cover plate 11.

[0042] By pulling and pushing the rectangular sliding plate 13, the rectangular sliding plate 13 drives the trapezoidal upper and lower sliders 14 to slide within the trapezoidal slide groove 15. When the trapezoidal upper and lower sliders 14 slide, they will drive the dovetail plate 16 to slide within the lower clamping plate 12. When the dovetail plate 16 leaves the lower clamping plate 12, there is no longer any object connecting the lower clamping plate 12 and the upper cover plate 11. This allows the lower housing 1 and the upper housing 2 to be rotated directly, realizing the opening and closing of the equipment. A circular lifting rod 17 and a spring 18 are provided on the dovetail plate 16. With the presence of the circular lifting rod 17 and the spring 18, when the dovetail plate 16 moves up and down, the circular lifting rod 17 will pull the spring 18 to deform, generating a reverse elastic force to make the dovetail plate 16 return to its original position, thus improving the convenience of opening and closing the equipment.

[0043] The sliding mechanism includes a rectangular support leg 32, which is fixedly installed on the lower surface of the lower housing 1. An outer movable sleeve 31 is fixedly installed on the rectangular support leg 32. A pulley 33 is movably installed on the side wall of the rectangular support leg 32. A pull rod 34 is movably engaged inside the outer movable sleeve 31. A rectangular positioning groove 35 is provided on the side wall of the pull rod 34. A rectangular positioning block 36 is fixedly installed inside the outer movable sleeve 31 and is movably engaged in the rectangular positioning groove 35. A spherical clip 37 is movably engaged inside the outer movable sleeve 31. A spring piece is provided below the spherical clip 37, and the spherical clip 37 is engaged below the end of the pull rod 34.

[0044] When the equipment is working, by pulling the pull rod 34, the pull rod 34 moves within the outer movable sleeve 31. When the pull rod 34 moves, the rectangular positioning block 36 fixed inside the outer movable sleeve 31 moves within the rectangular positioning groove 35 opened on the pull rod 34. Through the engagement of the rectangular positioning block 36 within the rectangular positioning groove 35, the movement of the pull rod 34 is limited, ensuring the stability of the movement of the pull rod 34. After the pull rod 34 moves to the designated position, the groove opened on the bottom of the pull rod 34 contacts the spherical clip 37. A spring piece is provided on the bottom of the spherical clip 37, which bounces up the spherical clip 37 and engages with the lower surface of the pull rod 34, thus fixing the pull rod 34. The fixed pull rod 34 is then pulled out from the outer movable sleeve 31.

[0045] Working principle:

[0046] Step 1: When the equipment is working, by pulling the pull rod 34, the pull rod 34 moves within the outer movable sleeve 31. As the pull rod 34 moves, the rectangular positioning block 36 fixed inside the outer movable sleeve 31 moves within the rectangular positioning groove 35 on the pull rod 34. The engagement of the rectangular positioning block 36 within the rectangular positioning groove 35 limits the movement of the pull rod 34, ensuring its stability. After the pull rod 34 reaches the designated position, the pull rod... The groove below the 34 contacts the spherical clip 37. A spring is provided below the spherical clip 37, which pops up the spherical clip 37 and locks it onto the lower surface of the pull rod 34, thus fixing the pull rod 34. After fixing, the pull rod 34 is pulled out from the outer movable sleeve 31. By pulling the pull rod 34, the pulley 33 slides on the ground, realizing the movement of the equipment. This makes it easy to move the equipment to charging piles in different locations, improving the ease of operation of the equipment.

[0047] Step 2: When opening the device, pull and push the rectangular sliding plate 13 to make the trapezoidal upper and lower sliders 14 slide within the trapezoidal groove 15. When the trapezoidal upper and lower sliders 14 slide, they will drive the dovetail plate 16 to slide within the lower clamping plate 12. When the dovetail plate 16 leaves the lower clamping plate 12, there is no longer any object connecting the lower clamping plate 12 and the upper cover plate 11. This allows the lower housing 1 and the upper housing 2 to be rotated directly, thus opening and closing the device. A circular lifting rod 17 and a spring 18 are provided on the dovetail plate 16. With the presence of the circular lifting rod 17 and the spring 18, when the dovetail plate 16 moves up and down, the circular lifting rod 17 will pull the spring 18 to deform, generating a reverse elastic force to make the dovetail plate 16 return to its original position, thus improving the convenience of opening and closing the device.

[0048] Step 3: When the lower housing 1 and the upper housing 2 open and close, the lower housing 1 will drive the rectangular support plate 21 to rotate. When the rectangular support plate 21 rotates, the side wall where the two rectangular support plates 21 are in contact is provided with a groove for the rectangular support plate 21 to rotate, which facilitates the control of the rotation of the rectangular support plate 21. A connecting soft layer 22 is provided on the outside of the rectangular support plate 21 for connection. Through the presence of the connecting soft layer 22, when the two rectangular support plates 21 rotate relative to each other, the connecting soft layer 22 connects the two rectangular support plates 21, ensuring the support effect of the equipment, making the connection between the lower housing 1 and the upper housing 2 stronger, and facilitating the control of the rotation of the lower housing 1 and the upper housing 2.

[0049] Step 4: After the lower housing 1 and the upper housing 2 are opened and closed, the rotating rod 43 is rotated to drive the circular rotating shaft 41 to rotate within the arc plate 42, thereby controlling the rotation of the circular rotating shaft 41 and making its rotation more stable. When the circular rotating shaft 41 rotates, it will drive the rotating rod 43 to change its angle, allowing the elastic rod 44 at the end of the rotating rod 43 to engage in the rectangular sleeve 45. The elastic rod 44 is an elastic component, which allows it to engage more easily in the rectangular sleeve 45, thus providing support between the lower housing 1 and the upper housing 2. This ensures the stability of the equipment after installation, prevents relative displacement between the lower housing 1 and the upper housing 2, improves the stability of the lower housing 1 and the upper housing 2 after opening, prevents the lower housing 1 and the upper housing 2 from closing together, and improves the ease of operation.

[0050] Step 5: After turning on the device, insert the charging head of the charging pile into the docking connector 53 to detect the voltage of the charging head. This facilitates the measurement of the charging head's voltage and improves the accuracy of power consumption detection. A rectangular protective cap 52 is provided on the rectangular base 51. When the docking connector 53 is not connected to the charging head, the rectangular protective cap 52 can block dust and ensure the protection of the docking connector 53. When the rectangular protective cap 52 and the rectangular clamping plate 54 are engaged, the triangular locking block 55 on the side wall of the rectangular clamping plate 54 allows the triangular locking block 55 to engage. The rectangular protective cap 52 is locked inside to secure it. When the charging head and the connector 53 are engaged, the presence of the arc-shaped locking block 56 allows it to fit snugly against the outside of the charging head, and the arc-shaped insert block 57 on the arc-shaped locking block 56 engages with the charging head, improving the securing effect of the charging head. This device, through the triangular locking block 55 and the arc-shaped locking block 56 on the rectangular clamping plate 54, ensures the protective effect of the rectangular protective cap 52 on the triangular locking block 55, while improving the engagement effect of the charging head on the connector 53 and enhancing the installation stability of the charging head.

[0051] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A device for metering calibration and verification of charging piles, comprising a lower housing (1) and an upper housing (2), characterized in that, A connecting mechanism is provided between the lower housing (1) and the upper housing (2), a locking mechanism is provided between the lower housing (1) and the upper housing (2), a sliding mechanism is provided below the lower housing (1), a supporting mechanism is provided inside the lower housing (1) and the upper housing (2), and a docking mechanism is provided inside the lower housing (1) and the upper housing (2); the docking mechanism includes a detection device (3) and a buffer pad (4), both the detection device (3) and the buffer pad (4) are fixedly installed inside the lower housing (1), and the buffer pad (4) is provided on both sides of the detection device (3). A rectangular base (51) is fixedly installed on the upper surface of the detection device (3), and a docking joint (53) is fixedly installed on the upper surface of the rectangular base (51). A rectangular clamp (54) is fixedly installed on the upper surface of a rectangular base (51). A triangular locking block (55) is fixedly installed on the outer side wall of the rectangular clamp (54). An arc-shaped locking block (56) is fixedly installed on the inner side wall of the rectangular clamp (54). An arc-shaped embedding block (57) is fixedly installed on the inner side wall of the arc-shaped locking block (56). A rectangular protective cap (52) is movably engaged with the rectangular base (51). The rectangular clamp (54) is made of an elastic material. The inner side wall of the rectangular protective cap (52) has a groove for the opening and closing triangular locking block (55). When engaged, the rectangular clamp (54) is in a vertical state. The support mechanism includes an arc-shaped plate (42), which is fixedly installed on the testing equipment. On the upper surface of (3), a circular rotating shaft (41) is movably engaged in the arc plate (42), a rotating rod (43) is fixedly installed on the side wall of the circular rotating shaft (41), and an elastic rod (44) is fixedly installed on the end of the rotating rod (43); a rectangular sleeve (45) is fixedly installed on the inner side wall of the upper shell (2), and the elastic rod (44) is movably engaged in the rectangular sleeve (45); the connecting mechanism includes a rectangular support plate (21), the rectangular support plate (21) is fixedly installed on the side wall of the lower shell (1) and the upper shell (2), and the rectangular support plate (21) is installed on the side where the lower shell (1) and the upper shell (2) are in contact, and oblique openings are provided on the side walls of the two rectangular support plates (21) that are close to each other. The rectangular support plate (21) has a connecting soft skin layer (22) fixedly installed on its outer side wall. The connecting soft skin layer (22) is elastic and covers the rectangular support plate (21). The connecting soft skin layer (22) is fixedly installed on the side wall of the connecting soft skin layer (22). The connecting soft skin layer (22) is fixedly installed on the side wall of the rectangular support plate (21) by the rivet (23). The locking mechanism includes an upper cover plate (11). The upper cover plate (11) is fixedly installed on the side wall of the upper shell (2). The lower locking plate (12) is fixedly installed on the side wall of the upper shell (2). The dovetail plate (16) is locked and installed inside the lower locking plate (12). The cross-sectional shape of the dovetail plate (16) is trapezoidal.A circular lifting rod (17) is fixedly installed on the side wall of the dovetail plate (16). A spring (18) is fixedly installed on the side wall of the circular lifting rod (17). The spring (18) is fixedly installed on the inner side wall of the upper cover plate (11). A trapezoidal upper and lower slider (14) is fixedly installed on the side wall of the dovetail plate (16). The trapezoidal upper and lower slider (14) is movably engaged in the trapezoidal slide groove (15). A push rectangular slide plate (13) is fixedly installed on the side wall of the trapezoidal upper and lower slider (14). The push rectangular slide plate (13) is in contact with the side wall of the upper cover plate (11). The sliding mechanism includes a rectangular support leg (32). The rectangular support leg (32) is fixedly installed on the lower housing. (1) On the lower surface of the rectangular support leg (32), an outer movable sleeve (31) is fixedly installed on the rectangular support leg (32). A pulley (33) is movably installed on the side wall of the rectangular support leg (32). A pull rod (34) is movably engaged in the outer movable sleeve (31). A rectangular positioning groove (35) is opened on the side wall of the pull rod (34). A rectangular positioning block (36) is fixedly installed in the outer movable sleeve (31). The rectangular positioning block (36) is movably engaged in the rectangular positioning groove (35). A spherical clip (37) is movably engaged in the outer movable sleeve (31). A spring is provided below the spherical clip (37). The spherical clip (37) is engaged below the end of the pull rod (34).

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