Contact box device for isolating high-voltage switch cabinet

Abstract

The utility model discloses a device for isolating a contact box in a high-voltage switch cabinet, which belongs to the technical field of contact boxes and comprises a contact box main body and a storage shell movably connected to one side of the contact box main body, and two jacks are respectively arranged on the outer wall of one side of the storage shell. An insulating plug and an operating rod are inserted into two insertion holes of the storage shell respectively, moving grooves are formed in the outer walls of the two sides of the operating rod, limiting rods are movably connected into the moving grooves of the operating rod, supporting blocks are fixed to the opposite faces of the two limiting rods, and the limiting rods are sleeved with compression springs used for supporting the supporting blocks. A handle is fixed to the outer wall of one side of the operating rod, and one side of the handle is movably connected with an adjusting block. According to the device for isolating the contact box in the high-voltage switch cabinet, when the baffle plate at the contact box is overhauled, the contact box and the electrified static contact can be isolated, and the personal safety of workers is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of contact boxes, and particularly relates to a device for isolating a contact box in a high-voltage switch cabinet. Background Art

[0002] Contact boxes are installed in 10kV and 35kV high-voltage switch cabinets. There are static contacts made of copper material in the contact boxes. The static contacts include static contacts on the bus side and static contacts on the line side (or main transformer side). The static contacts are energized when the bus and the line side are both powered on.

[0003] In order to perform maintenance on the circuit breaker chamber after the circuit breaker trolley is pulled out, especially when the operator repairs the baffle at the contact box, it is necessary to pull the baffle up and down. When the baffle is pulled open, the energized static contacts in the contact box are exposed, which poses a safety hazard to the operator. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for isolating a contact box in a high-voltage switch cabinet, so as to solve the problem that when the operator repairs the baffle at the contact box, it is necessary to pull the baffle up and down. When the baffle is pulled open, the energized static contacts in the contact box are exposed, which poses a safety hazard to the operator as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A device for isolating a contact box in a high-voltage switch cabinet includes a contact box main body and a storage shell movably connected to one side of the contact box main body. Two jacks are respectively opened on the outer wall of one side of the storage shell, and an insulating plug and an operating rod are respectively inserted into the two jacks of the storage shell.

[0006] Moving grooves are opened on the outer walls on both sides of the operating rod, and a limiting rod is movably connected in the moving groove of the operating rod. Supporting blocks are fixed on the opposite surfaces of the two limiting rods, and a compression spring for supporting the supporting block is sleeved on the outside of the limiting rod. A handle is fixed on one side outer wall of the operating rod, and an adjusting block is movably connected to one side of the handle.

[0007] In a further embodiment, one end of the adjusting block is fixed with a connecting column, a pushing block for pushing the supporting block is fixed on the end face of the connecting column, and a step groove matching with the limiting rod is opened on one side outer wall of the insulating plug.

[0008] In a further embodiment, a limiting ring is fixed on the outer wall of the connecting column, and a fixing spring for supporting the limiting ring is sleeved on the outside of the connecting column.

[0009] In a further embodiment, a cavity is provided in the insulating plug, and a support spring is provided in the insulating plug, and connecting blocks movably connected to the insulating plug are provided on both sides of the support spring.

[0010] In a further embodiment, a non-slip pad movably connected to the insulating plug is fixed to a side of the connection block away from the support spring, and a surface of the non-slip pad is provided with an inclined surface.

[0011] In a further embodiment, two connection holes are provided on the outer walls around the contact box body, adsorption blocks are fixed in the connection holes of the contact box body, and two magnetic blocks adsorbed to the adsorption blocks are fixed on the outer wall of one side of the storage shell.

[0012] Technical effects and advantages of the utility model:

[0013] The device is used for isolating the contact box in the high-voltage switch cabinet. By inserting the operating rod into the insulating plug, the push block supports the support block, and the limit rod is inserted into the step groove of the insulating plug, so that the operating rod and the insulating plug are stably connected, and then the insulating plug is inserted into the contact box body by the handle and the operating rod, so as to isolate the contact box body and the static contact, thereby ensuring the safety of the operating personnel;

[0014] By setting the storage shell, the insulating plug and the operating rod can be stored at the same time, which is convenient for carrying. At the same time, the supporting spring supports the connecting block and the anti-skid pad, so that the anti-skid pad fits on the inner wall of the storage shell, and the position of the insulating plug can be fixed to prevent the insulating plug from accidentally falling when not subject to external force. At the same time, the pushing block supports the supporting block, so that the limiting rod fits on the inner wall of the storage shell, and the position of the operating rod can be fixed to prevent the operating rod from accidentally separating from the storage shell when not subject to external force.

[0015] The position of the storage shell can be fixed by adsorption through the magnetic block and the adsorption block. At the same time, the movable storage shell can adjust the installation position of the storage shell according to the different installation positions of the contact box body to avoid the storage shell affecting the installation of the contact box body. The device is used to isolate the contact box device in the high-voltage switch cabinet. When the baffle at the contact box is inspected and repaired, the contact box and the energized static contact can be isolated to ensure the personal safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is the structural schematic diagram of the present utility model;

[0018] Figure 2 is the exploded view of the storage case of the present utility model;

[0019] Figure 3 is the cross-sectional view of the insulating plug of the present utility model;

[0020] Figure 4 is the cross-sectional view of the operating rod of the present utility model;

[0021] Figure 5 is the Figure 4 enlarged view of part A in the present utility model.

[0022] In the figure: 1, main body of the contact box; 2, adsorption block; 3, storage case; 4, magnetic attraction block; 5, insulating plug; 6, support spring; 7, connection block; 8, anti-slip pad; 9, operating rod; 10, limiting rod; 11, support block; 12, compression spring; 13, handle; 14, adjusting block; 15, connecting column; 16, push block; 17, limiting ring; 18, fixing spring. Specific embodiments

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some technical features well known in the art are not described.

[0024] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the figures shown in the present utility model, and are hereby explained together.

[0025] Please refer to Figures 1-5 , the present utility model provides a device for isolating the contact box in a high-voltage switchgear, including the main body 1 of the contact box and a storage case 3 movably connected to one side of the main body 1 of the contact box. The main body 1 of the contact box is a prior art, and its structure will not be described in detail here. Two connection holes are opened on the outer walls around the main body 1 of the contact box, and adsorption blocks 2 are adhesively fixed in the connection holes of the main body 1 of the contact box. Two magnetic attraction blocks 4 that adsorb to the adsorption blocks 2 are fixed on one outer wall of the storage case 3 by bolts. By adsorbing the magnetic attraction blocks 4 to the adsorption blocks 2, the position of the storage case 3 can be fixed. At the same time, according to the different installation positions of the main body 1 of the contact box, the storage case 3 can be moved to adjust the installation position of the storage case 3 to avoid the storage case 3 affecting the installation of the main body 1 of the contact box;

[0026] On one outer wall of the storage case 3, two jacks are respectively provided. An insulating plug 5 and an operating rod 9 are respectively inserted into the two jacks of the storage case 3. A cavity is provided in the insulating plug 5, and a support spring 6 is provided in the insulating plug 5. On both sides of the support spring 6, there are connection blocks 7 movably connected to the insulating plug 5. On the side of the connection block 7 away from the support spring 6, there is an anti-slip pad 8 movably connected to the insulating plug 5. The surface of the anti-slip pad 8 is provided with an inclined surface. The anti-slip pad 8 is provided with an inclined surface, which is convenient for quickly pushing the insulating plug 5 into the storage case 3 and preventing the anti-slip pad 8 from hindering the movement of the insulating plug 5. The support spring 6 supports the connection block 7 and the anti-slip pad 8, so that the anti-slip pad 8 fits on the inner wall of the storage case 3, and the position of the insulating plug 5 can be fixed to prevent the insulating plug 5 from accidentally falling off when no external force is applied;

[0027] On both outer walls of the operating rod 9, moving grooves are respectively provided. A limiting rod 10 is movably connected in the moving groove of the operating rod 9. The limiting rod 10 is of a cuboid structure to prevent the limiting rod 10 from rotating randomly in the operating rod 9. On the opposite surfaces of the two limiting rods 10, support blocks 11 are fixed by screws. A compression spring 12 for supporting the support block 11 is sleeved outside the limiting rod 10. The compression spring 12 supports the support block 11, so that the two support blocks 11 fit together. At this time, the end faces of the two limiting rods 10 are on the same plane as the outer wall of the operating rod 9 to prevent the limiting rod 10 from separating from the operating rod 9. A handle 13 is fixed on one outer wall of the operating rod 9, and an adjusting block 14 is movably connected to one side of the handle 13;

[0028] One end of the adjusting block 14 is fixed with a connecting column 15 by screws. The connecting column 15 is movably connected to both the operating rod 9 and the handle 13. The end face of the connecting column 15 is fixed with a pushing block 16 for pushing the support block 11 by screws. The end face of the pushing block 16 is of a conical structure, and inclined surfaces matching the end face of the pushing block 16 are provided on the opposite surfaces of the two support blocks 11, which is convenient for the pushing block 16 to be inserted between the two support blocks 11. A step groove matching the limiting rod 10 is provided on one outer wall of the insulating plug 5. A limiting ring 17 is fixed on the outer wall of the connecting column 15 by screws. A fixing spring 18 for supporting the limiting ring 17 is sleeved outside the connecting column 15. The pushing block 16 supports the support block 11, so that the limiting rod 10 fits on the inner wall of the storage case 3, and the position of the operating rod 9 can be fixed to prevent the operating rod 9 from accidentally separating from the storage case 3 when no external force is applied. By inserting the operating rod 9 into the insulating plug 5, the pushing block 16 supports the support block 11, so that the limiting rod 10 is inserted into the step groove of the insulating plug 5, and the operating rod 9 is stably connected to the insulating plug 5. Then, through the cooperation of the handle 13 and the operating rod 9, the insulating plug 5 is inserted into the contact box body 1 to isolate the contact box body 1 and the static contact, thus ensuring the safety of the operators.

[0029] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The control mode of the present utility model is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] In the description of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0031] Working principle:

[0032] When the device for isolating the contact box in the high-voltage switch cabinet is in use, the connecting column 15 and the push block 16 are pulled by the adjusting block 14, and the limiting ring 17 compresses the fixing spring 18. The push block 16 separates from the supporting block 11, and the compression spring 12 supports the supporting block 11 to make the two supporting blocks 11 fit. The operating rod 9 is taken out through the handle 13, and then the operating rod 9 is inserted into the insulating plug 5. The adjusting block 14 is released, and the fixing spring 18 resets, pushing the limiting ring 17 and the connecting column 15 to move, so that the push block 16 is inserted between the two supporting blocks 11. The push block 16 supports the supporting block 11 to make the limiting rod 10 inserted into the step groove of the insulating plug 5, so that the operating rod 9 is stably connected to the insulating plug 5;

[0033] Then, the insulating plug 5 is taken out of the receiving shell 3 through the handle 13 in cooperation with the operating rod 9, and the insulating plug 5 is inserted into the contact box body 1. The supporting spring 6 supports the connecting block 7 and the anti-slip pad 8 to make the anti-slip pad 8 fit on the inner wall of the contact box body 1 to fix the position of the insulating plug 5 and isolate the contact box body 1 and the static contact, thus ensuring the safety of the operators. Then, the connecting column 15 and the push block 16 are pulled by the adjusting block 14 to release the support of the push block 16 on the supporting block 11. The operating rod 9 is taken out of the insulating plug 5 and inserted into the receiving shell 3 to store the operating rod 9.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A contact box device for isolating a high-voltage switch cabinet, comprising a contact box body (1) and a storage shell (3) movably connected to one side of the contact box body (1), characterized in that: Two insertion holes are respectively provided on one side outer wall of the storage shell (3), and an insulating plug (5) and an operating rod (9) are respectively inserted into the two insertion holes of the storage shell (3); The outer walls on both sides of the operating rod (9) are provided with movable grooves, and a limit rod (10) is movably connected in the movable groove of the operating rod (9), and supporting blocks (11) are fixed to the opposite surfaces of the two limit rods (10), and the outer part of the limit rod (10) is sleeved with a compression spring (12) for supporting the supporting block (11), and a handle (13) is fixed to the outer wall of one side of the operating rod (9), and an adjustment block (14) is movably connected to one side of the handle (13).

2. A contact box device for isolating a high-voltage switch cabinet according to claim 1, characterized in that: A connecting column (15) is fixed at one end of the adjusting block (14), a pushing block (16) for pushing the supporting block (11) is fixed on the end surface of the connecting column (15), and a step groove matching the limiting rod (10) is formed on one side outer wall of the insulating plug (5).

3. A contact box device for isolating a high-voltage switch cabinet according to claim 2, characterized in that: A limiting ring (17) is fixed to the outer wall of the connecting column (15), and a fixing spring (18) for supporting the limiting ring (17) is sleeved on the outside of the connecting column (15).

4. A contact box device for isolating a high-voltage switch cabinet according to claim 1, characterized in that: A cavity is provided in the insulating plug (5), and a support spring (6) is provided in the insulating plug (5). Both sides of the support spring (6) are provided with connection blocks (7) movably connected to the insulating plug (5).

5. A contact box device for isolating a high-voltage switch cabinet according to claim 4, characterized in that: An anti-skid pad (8) movably connected to the insulating plug (5) is fixed to the side of the connection block (7) away from the support spring (6), and the surface of the anti-skid pad (8) is provided with an inclined surface.

6. A contact box device for isolating a high-voltage switch cabinet according to claim 1, characterized in that: Two connection holes are provided on the four outer walls of the contact box body (1), adsorption blocks (2) are fixed in the connection holes of the contact box body (1), and two magnetic blocks (4) adsorbed to the adsorption blocks (2) are fixed on one outer wall of the storage shell (3).

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