Gas-insulated switchgear helium leak detection transfer clamping system

Abstract

The invention relates to the technical field of gas-filled cabinet helium leak detection, in particular to a gas-filled cabinet helium leak detection transfer clamping system which comprises a sliding block, a bottom frame, a supporting column, a side frame, a first rotating shaft and a rubber pad. According to the transfer clamping system for helium leak detection of the gas insulated switchgear, when the side frame drives the side plate to slide, the side plate drives the second rotating shaft to rotate through the first rack and the first gear ring, so that the supporting block rotates to the bottom of the cabinet body to support the cabinet body, the stability of the cabinet body during transfer is kept, and the falling force generated during transfer of the cabinet body is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of helium leak detection for gas cabinets, and in particular to a transfer and clamping system for helium leak detection for gas cabinets. Background Art

[0002] The gas cabinet is a new generation of switchgear with a compact design and scalable structure suitable for distribution automation. This equipment mainly uses a combination of air insulation and sulfur hexafluoride (SF6) gas compartments to improve electrical performance and safety. However, in a fully insulated and fully enclosed structure, the problem of air leakage is particularly critical because the high-voltage phase distance in SF6 gas is only one-third of that in air. If SF6 gas leaks, insufficient concentration will cause the switch to burn out, resulting in significant losses. Therefore, the gas cabinet needs to be helium leak tested to ensure its sealing and reliability. When the gas cabinet is helium leak tested, the gas cabinet will first be clamped by a transfer device, and then transferred to the helium leak detection device for helium leak testing.

[0003] Because the cabinet will be subjected to helium leak detection before being put into use, when the cabinet is subjected to helium leak detection, the cabinet is transferred to the helium leak detection device through a transfer device for helium leak detection. When the transfer device transfers the cabinet, a clamping structure is used to clamp both sides of the cabinet, and then the cabinet is transferred to the helium leak detection device. However, when the cabinet is transferred by the transfer device, the cabinet is in a suspended state and has a certain weight. At this time, the cabinet will generate a downward force, which can easily cause the cabinet to deviate and tilt on the clamping structure. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an inflatable cabinet helium leak detection transfer clamping system to solve the problem that the cabinet body is transferred to generate a downward force due to its own weight, and the downward force easily causes the cabinet body to deviate and tilt on the clamping structure.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A gas cabinet helium leak detection transfer clamping system comprises a mobile frame, the inner wall of which is slidably connected with a lifting plate;

[0007] A clamping assembly, the clamping assembly is arranged on the lifting plate, the clamping assembly includes a slider, a slide groove matching the slider is opened at the bottom of the lifting plate, the side wall of the slider is slidably connected to the inner wall of the slide groove, a bottom frame is arranged at the bottom of the slider, a support column is fixed between the top of the bottom frame and the bottom of the slider, a side frame is arranged on one side of the bottom frame, and a plurality of first rotating shafts arranged at equal distances are rotatably connected to the inner wall of the side frame, and a rubber pad is bonded to the surface of each first rotating shaft;

[0008] A first driving assembly, which is disposed on the lifting plate and is used to drive the first rotating shaft on the side frame to approach the cabinet and clamp it;

[0009] The bottom support assembly is arranged on the side frame and is used to support the bottom of the cabinet.

[0010] Preferably, a first cylinder is fixed to the inner wall of the bottom frame, a first limiting column is slidably connected to the inner wall of the first cylinder, an end of the first limiting column away from the first cylinder is fixed to a side wall of the side frame, and a first return spring is fixed between the end of the first limiting column away from the side frame and the inner wall of the first cylinder.

[0011] Preferably, a second return spring is fixed between one side of the side frame and the inner wall of the bottom frame, and each of the first cylinders is located inside the corresponding second return spring for supporting the side frame.

[0012] Preferably, the bottom support assembly includes two side blocks fixed on the side walls of the side frame, the two side blocks are symmetrical with the side frame as the center, a second through hole is opened on the two side blocks, the inner walls of the two second through holes are both rotating second rotating shafts, and the bottoms of the two second rotating shafts are fixed with support blocks for supporting the bottom of the cabinet.

[0013] Preferably, side plates are fixed on both sides of the side frame, a first rack is fixed on one side of the side plate, a first gear ring is fixed on the outer surface of the second rotating shaft, and the first gear ring is meshingly connected with the first rack.

[0014] Preferably, a first transmission assembly is provided on the side frame, and the first transmission assembly includes a threaded column fixed on the top of the second rotating shaft, and the top of the threaded column is rotatably connected to the bottom of the slider, and a linkage plate is provided on the outside of the support column, and a first through hole is opened on the linkage plate. The support column is located inside the first through hole, and the support column cooperates with the first through hole to limit the linkage plate.

[0015] Preferably, a screw groove is provided on the linkage plate, the threaded column is threadedly connected to the inside of the screw groove, the bottom of the linkage plate is slidably connected to two symmetrical linkage bars, the side frame is provided with two symmetrical sliding openings, the two linkage bars are respectively slidably connected to the corresponding sliding openings, a plurality of second racks are fixed on the linkage bar, a second gear ring is fixed to the outer wall of the first rotating shaft, and the second gear ring is meshingly connected to the second rack.

[0016] Preferably, a second transmission assembly is provided on the side frame, and the second transmission assembly includes a push column fixed on a side wall of the first cylinder, and one end of the push column extending out of the side frame has a curved surface, and two third through holes adapted to the push column are provided on the side frame, and the push column is slidably connected inside the corresponding third through holes.

[0017] Preferably, a bottom plate is fixed to the bottom of the linkage plate, and two arc-shaped blocks are fixed to the side of the bottom plate facing the push column.

[0018] Preferably, the first driving component includes a driving shaft rotatably connected to the inner wall of the lifting plate, the driving shaft having threaded sections symmetrical at both ends, the upper end of the sliding block is provided with a threaded groove matched with the threaded section, the threaded section of the driving shaft is threadedly connected to the inside of the threaded groove, a driving source is installed on one side of the lifting plate, the output end of the driving source passes through the lifting plate and is connected to one end of the driving shaft, a cylinder is installed on the top of the moving frame, and the piston rod section of the cylinder is fixed to the top of the lifting plate.

[0019] The beneficial effects of the present invention are:

[0020] 1. Through the cooperation of the side frame, the first cylinder, the first limiting column and the first return spring, the first rotating shaft and the rubber pad can be pressed against the surface of the cabinet to clamp the cabinet, thereby maintaining the stability of the cabinet during transfer.

[0021] 2. When the side frame drives the side panel to slide, the side panel drives the second rotating shaft to rotate through the first rack and the first gear ring, so that the support block rotates to the bottom of the cabinet to support the cabinet, thereby maintaining the stability of the cabinet during transfer and reducing the downward force generated during the transfer of the cabinet.

[0022] 3. The threaded column drives the linkage plate downward, and the linkage plate drives the first rotating shaft to rotate through the second rack and the second gear ring on the linkage bar, so that the first rotating shaft lifts the cabinet body, thereby reducing the downward force generated by the cabinet body. Through the cooperation of the push column, the bottom plate and the arc block, the first cylinder can compress the first return spring again, thereby increasing the clamping strength of the first rotating shaft on the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention.

[0024] Figure 2 It is a schematic structural diagram of the clamping assembly of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the first three-dimensional cross-section of the lifting plate of the present invention.

[0026] Figure 4 It is a schematic structural diagram of the bottom support assembly of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the first three-dimensional cross section of the bottom frame of the present invention.

[0028] Figure 6It is a schematic structural diagram of the first cylinder of the present invention.

[0029] In the figure:

[0030] 10. Mobile rack; 11. Lifting plate;

[0031] 20. Clamping assembly; 21. Sliding block; 22. Sliding groove; 23. Bottom frame; 24. Support column; 25. Side frame; 26. First cylinder; 27. First limiting column; 28. First return spring; 29. ​​First rotating shaft; 210. Rubber pad; 211. Second return spring;

[0032] 30. First drive assembly; 31. Drive shaft; 32. Drive source; 33. Cylinder;

[0033] 40. bottom support assembly; 41. side block; 42. second through hole; 43. second rotating shaft; 44. support block; 45. side plate; 46. first rack; 47. first gear ring;

[0034] 50, first transmission assembly; 51, threaded column; 52, linkage plate; 53, first through hole; 54, linkage bar; 55, sliding mouth; 56, second rack; 57, second gear ring;

[0035] 60. Second transmission assembly; 61. Push column; 62. Third through hole; 63. Bottom plate; 64. Arc block. DETAILED DESCRIPTION

[0036] The following will refer to the attached Figures 1 to 6 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0037] Embodiment 1

[0038] Because the cabinet will be subjected to helium leak detection before being put into use, when the cabinet is subjected to helium leak detection, the cabinet is transferred to the helium leak detection device through a transfer device for helium leak detection. When the transfer device transfers the cabinet, it uses a clamping structure to clamp both sides of the cabinet, and then transfers it to the helium leak detection device. However, when the cabinet is transferred by the transfer device, the cabinet is in a suspended state and has a certain weight. At this time, the cabinet will generate a downward force, and the downward force will cause the cabinet to deviate and tilt on the clamping structure.

[0039] As attached Figure 1-Figure 6 As shown, a transfer and clamping system for helium leak detection of an inflatable cabinet includes a mobile frame 10, the inner wall of the mobile frame 10 is slidably connected with a lifting plate 11, the bottom of the mobile frame 10 is equipped with moving wheels, and the interior of the lifting plate 11 is equipped with a clamping assembly 20 for clamping the cabinet body, thereby facilitating the transfer of the cabinet body;

[0040] The clamping assembly 20 includes a slider 21, and the top of the slider 21 is slidably connected to the inner top wall of the lifting plate 11. In this embodiment, the slider 21 is in an inverted T shape, and a slide groove 22 adapted to the slider 21 is provided at the bottom of the lifting plate 11, and the side wall of the slider 21 is slidably connected to the inner wall of the slide groove 22.

[0041] A bottom frame 23 is disposed at the bottom of the slider 21 , and a support column 24 is fixed between the top of the bottom frame 23 and the bottom of the slider 21 for supporting the bottom frame 23 , thereby maintaining the stability of the bottom frame 23 .

[0042] A side frame 25 is provided on one side of the bottom frame 23, and a first cylinder 26 is fixed to the inner wall of the bottom frame 23. A first limiting column 27 is slidably connected to the inner wall of the first cylinder 26, and one end of the first limiting column 27 away from the first cylinder 26 is fixed to a side wall of the side frame 25, which is used to limit the side frame 25, thereby maintaining the stability of the side frame 25, and a first return spring 28 is fixed between one end of the first limiting column 27 away from the side frame 25 and the inner wall of the first cylinder 26.

[0043] The inner wall of the side frame 25 is rotatably connected to a plurality of first rotating shafts 29 arranged at equal distances, and a rubber pad 210 is bonded to the surface of each first rotating shaft 29 .

[0044] A second return spring 211 is fixed between one side of the side frame 25 and the inner wall of the bottom frame 23 , and each first cylinder 26 is located inside the corresponding second return spring 211 , for supporting the side frame 25 , thereby facilitating the return of the side frame 25 .

[0045] A first driving assembly 30 is disposed inside the lifting plate 11 for driving the clamping assembly 20 to clamp and transfer the cabinet.

[0046] The first driving assembly 30 includes a driving shaft 31 rotatably connected to the inner wall of the lifting plate 11, the driving shaft 31 has threaded sections symmetrical at both ends, the upper end of the slider 21 is provided with a threaded groove adapted to the threaded section, and the threaded section of the driving shaft 31 is threadedly connected to the inside of the threaded groove, a driving source 32 is installed on one side of the lifting plate 11, and the output end of the driving source 32 passes through the lifting plate 11 and is connected to one end of the driving shaft 31, and a cylinder 33 is installed on the top of the moving frame 10, and the piston rod section of the cylinder 33 is fixed to the top of the lifting plate 11.

[0047] When in use, the mobile frame 10 is first moved to the cabinet, and the lifting plate 11 is first driven to move down by the cylinder 33 so that the cabinet is located between the two side frames 25. The driving source 32 in the working state drives the driving shaft 31 to rotate, and the driving shaft 31 makes the two sliders 21 approach each other, and the sliders 21 slide along the extension track of the slide groove 22, and the sliders 21 drive the bottom frame 23 to approach the cabinet through the support column 24, and the bottom frame 23 is driven by the first cylinder 26, the first limit column 27 and the first return spring 28. The movable side frame 25 slides toward the cabinet, and at this time, the rubber pad 210 of the first rotating shaft 29 will press against the surface of the cabinet. As the slider 21 slides, the first limiting column 27 slides inside the first cylinder 26 to compress the first return spring 28, so that the rubber pad 210 of the first rotating shaft 29 presses tightly against the surface of the cabinet to clamp it. After clamping, the lifting plate 11 is driven to move up by the cylinder 33, and then the movable frame 10 is moved to the device for helium leak detection, so as to perform helium leak detection on the cabinet.

[0048] Through the cooperation of the side frame 25, the first cylinder 26, the first limiting column 27 and the first return spring 28, the first rotating shaft 29 and the rubber pad 210 can be pressed against the surface of the cabinet to clamp the cabinet, thereby maintaining the stability of the cabinet during transfer.

[0049] A bottom support assembly 40 is provided on the side frame 25 for supporting the bottom of the cabinet, thereby maintaining the stability of the cabinet during transfer.

[0050] The bottom support assembly 40 includes two side blocks 41 fixed on the side walls of the side frame 25. The two side blocks 41 are symmetrical with the side frame 25 as the center. A second through hole 42 is opened on the two side blocks 41. The inner walls of the two second through holes 42 rotate the second shaft 43. The bottom of the two second shafts 43 is fixed with a support block 44 for supporting the bottom of the cabinet, so as to maintain the stability of the cabinet during transfer.

[0051] Side plates 45 are fixed to both sides of the side frame 25 , a first rack 46 is fixed to one side of the side plate 45 , a first gear ring 47 is fixed to the outer surface of the second rotating shaft 43 , and the first gear ring 47 is meshedly connected with the first rack 46 .

[0052] When the side frame 25 slides toward the inside of the bottom frame 23, the first rack 46 on the side panel 45 drives the second shaft 43 to rotate inside the second through hole 42 through the first gear ring 47. At this time, the two support blocks 44 connected to the side frame 25 rotate synchronously in the opposite direction to the bottom of the cabinet to support the cabinet, thereby maintaining the stability of the cabinet transfer and preventing the cabinet from moving downward due to its own weight and causing it to fall and deviate when clamped by the first shaft 29.

[0053] When the side frame 25 drives the side panel 45 to slide, the side panel 45 drives the second shaft 43 to rotate through the first rack 46 and the first gear ring 47, so that the support block 44 rotates to the bottom of the cabinet to support the cabinet, thereby maintaining the stability of the cabinet during transfer and reducing the downward force generated during transfer.

[0054] Embodiment 2

[0055] When the cabinet is clamped by the clamping assembly 20 and transferred by the first driving assembly 30, the cabinet is in a suspended state. Since the cabinet itself has a certain weight, the cabinet will generate a downward force, and the downward force can easily cause the cabinet to deviate when transferred by the mobile frame 10. In view of this, improvements are made on the basis of Example 1.

[0056] refer to Figure 4 and Figure 5 As shown, a first transmission assembly 50 is provided on the side frame 25 for driving the first rotating shaft 29 to rotate, thereby applying a pulling force to the cabinet.

[0057] The first transmission assembly 50 includes a threaded column 51 fixed on the top of the second rotating shaft 43, and the top of the threaded column 51 is rotatably connected to the bottom of the slider 21, a linkage plate 52 is arranged on the outside of the support column 24, a first through hole 53 is opened on the linkage plate 52, and the support column 24 is located inside the first through hole 53, and the support column 24 cooperates with the first through hole 53 to limit the linkage plate 52, so as to prevent the linkage plate 52 from deviating when sliding.

[0058] A screw groove is formed on the linkage plate 52 , and the threaded column 51 is threadedly connected inside the screw groove. When the threaded column 51 rotates, it can drive the linkage plate 52 to slide up and down on the surface of the support column 24 .

[0059] The bottom of the linkage plate 52 is slidably connected to two symmetrical linkage bars 54, and two symmetrical sliding openings 55 are opened on the side frame 25, and the two linkage bars 54 are slidably connected inside the corresponding sliding openings 55, and a plurality of second racks 56 are fixed on the linkage bar 54, and the number of the second racks 56 is the same as the number of the first rotating shaft 29, and a second gear ring 57 is fixed to the outer wall of the first rotating shaft 29, and the second gear ring 57 is meshed and connected with the second rack 56.

[0060] When the two second rotating shafts 43 rotate, the second rotating shafts 43 drive the threaded columns 51 to rotate, and the two threaded columns 51 can drive the linkage plate 52 to move downward, and the linkage plate 52 can drive the first rotating shaft 29 to rotate through the second rack 56 and the second gear ring 57 on the linkage bar 54. At this time, the first rotating shaft 29 rotates from bottom to top, thereby generating a lifting force on the cabinet body, thereby reducing the downward force of the cabinet body.

[0061] refer to Figure 5 and Figure 6 As shown, a second transmission assembly 60 is provided on the side frame 25 for improving the clamping strength of the first rotating shaft 29 on the cabinet, thereby improving the stability of the cabinet.

[0062] The second transmission assembly 60 includes a push column 61 fixed on a side wall of the first cylinder 26. The end of the push column 61 extending out of the side frame 25 has an arc surface. Two third through holes 62 adapted to the push column 61 are provided on the side frame 25, and the push column 61 is slidably connected inside the corresponding third through holes 62.

[0063] A bottom plate 63 is fixed to the bottom of the linkage plate 52 , and two arc-shaped blocks 64 are fixed to a side of the bottom plate 63 facing the push column 61 .

[0064] When the linkage plate 52 is in a downward state, the arc surface of the arc block 64 will press against the arc surface of the pushing column 61. As the linkage plate 52 moves downward, the arc block 64 will push the pushing column 61 to slide toward the inside of the side frame 25. The pushing column 61 pushes the first cylinder 26, thereby compressing the first return spring 28 again, thereby increasing the clamping strength of the first rotating shaft 29 on the cabinet.

[0065] The threaded column 51 drives the linkage plate 52 to move downward, and the linkage plate 52 drives the first rotating shaft 29 to rotate through the second rack 56 and the second gear ring 57 on the linkage bar 54, so that the first rotating shaft 29 lifts the cabinet body, thereby reducing the downward force generated by the cabinet body. Through the cooperation of the pushing column 61, the bottom plate 63 and the arc block 64, the first cylinder 26 can compress the first return spring 28 again, thereby improving the clamping strength of the first rotating shaft 29 on the cabinet body.

[0066] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A helium leak detection transfer clamping system for an inflatable cabinet, characterized in that: It comprises a movable frame, the inner wall of which is slidably connected with a lifting plate; A clamping assembly, the clamping assembly is arranged on the lifting plate, the clamping assembly includes a slider, a slide groove matching the slider is opened at the bottom of the lifting plate, the side wall of the slider is slidably connected to the inner wall of the slide groove, a bottom frame is arranged at the bottom of the slider, a support column is fixed between the top of the bottom frame and the bottom of the slider, a side frame is arranged on one side of the bottom frame, and a plurality of first rotating shafts arranged at equal distances are rotatably connected to the inner wall of the side frame, and a rubber pad is bonded to the surface of each first rotating shaft; A first driving assembly, which is disposed on the lifting plate and is used to drive the first rotating shaft on the side frame to approach the cabinet and clamp it; The bottom support assembly is arranged on the side frame and is used to support the bottom of the cabinet.

2. The inflatable cabinet helium leak detection transfer clamping system according to claim 1 is characterized in that: A first cylinder is fixed to the inner wall of the bottom frame, a first limiting column is slidably connected to the inner wall of the first cylinder, an end of the first limiting column away from the first cylinder is fixed to a side wall of the side frame, and a first return spring is fixed between the end of the first limiting column away from the side frame and the inner wall of the first cylinder.

3. The inflatable cabinet helium leak detection transfer clamping system according to claim 2 is characterized in that: A second return spring is fixed between one side of the side frame and the inner wall of the bottom frame, and each of the first cylinders is located inside the corresponding second return spring for supporting the side frame.

4. The inflatable cabinet helium leak detection transfer clamping system according to claim 3 is characterized in that: The bottom support assembly includes two side blocks fixed on the side walls of the side frame, the two side blocks are symmetrical with the side frame as the center, a second through hole is opened on the two side blocks, the inner walls of the two second through holes rotate the second shaft, and the bottom of the two second shafts are fixed with support blocks for supporting the bottom of the cabinet.

5. The inflatable cabinet helium leak detection transfer clamping system according to claim 4 is characterized in that: Side plates are fixed on both sides of the side frame, a first rack is fixed on one side of the side plate, a first gear ring is fixed on the outer surface of the second rotating shaft, and the first gear ring is meshed and connected with the first rack.

6. The inflatable cabinet helium leak detection transfer clamping system according to claim 5, characterized in that: The side frame is provided with a first transmission assembly, which includes a threaded column fixed on the top of the second rotating shaft, the top of the threaded column is rotatably connected to the bottom of the slider, a linkage plate is provided on the outside of the support column, a first through hole is opened on the linkage plate, the support column is located inside the first through hole, and the support column cooperates with the first through hole to limit the linkage plate.

7. The inflatable cabinet helium leak detection transfer clamping system according to claim 6, characterized in that: A screw groove is provided on the linkage plate, and the threaded column is threadedly connected inside the screw groove. Two symmetrical linkage bars are slidably connected to the bottom of the linkage plate. Two symmetrical sliding openings are provided on the side frame. The two linkage bars are slidably connected inside the corresponding sliding openings respectively. A plurality of second racks are fixed on the linkage bar, and a second gear ring is fixed on the outer wall of the first rotating shaft, and the second gear ring is meshedly connected with the second rack.

8. The inflatable cabinet helium leak detection transfer clamping system according to claim 7, characterized in that: The side frame is provided with a second transmission assembly, which includes a push column fixed on a side wall of the first cylinder, and one end of the push column extending out of the side frame has an arc surface. The side frame is provided with two third through holes adapted to the push column, and the push column is slidably connected inside the corresponding third through holes.

9. The inflatable cabinet helium leak detection transfer clamping system according to claim 8, characterized in that: A bottom plate is fixed at the bottom of the linkage plate, and two arc-shaped blocks are fixed on one side of the bottom plate facing the push column.

10. The inflatable cabinet helium leak detection transfer clamping system according to claim 9, characterized in that: The first driving component includes a driving shaft rotatably connected to the inner wall of the lifting plate, the driving shaft has threaded sections with symmetrical ends, the upper end of the sliding block is provided with a threaded groove matched with the threaded section, the threaded section of the driving shaft is threadedly connected to the inside of the threaded groove, a driving source is installed on one side of the lifting plate, the output end of the driving source passes through the lifting plate and is connected to one end of the driving shaft, a cylinder is installed on the top of the moving frame, and the piston rod section of the cylinder is fixed to the top of the lifting plate.

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