Vacuum circuit breaker shell

Abstract

The utility model relates to a vacuum circuit breaker shell, and relates to the field of vacuum circuit breakers. The vacuum circuit breaker comprises a vacuum circuit breaker body, a protection piece and a grounding piece, the vacuum circuit breaker body comprises a shell, a supporting frame is horizontally fixed to the bottom face of the shell, the protection piece is vertically arranged outside the shell, fixing frames are symmetrically fixed to the bottom face of the shell, the fixing frames are fixedly installed through bolts, and the protection piece comprises a protection frame. The protective frame is fixedly assembled on the bottom face of the supporting frame, a plurality of clamping frames are fixed to the two sides of the protective frame in the vertical direction, protective frame strips are horizontally assembled in the clamping frames of the protective frame, insulating plates are vertically fixed to the outer walls of the protective frame strips, and grounding pieces are vertically arranged on the bottom face of the protective frame. According to the vacuum circuit breaker, the protection part is arranged outside the shell in the vacuum circuit breaker body, so that damage to maintainers caused by current on the outer wall of the shell can be prevented, and the maintenance safety of the vacuum circuit breaker is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum circuit breakers, in particular to a vacuum circuit breaker shell. BACKGROUND

[0002] A vacuum circuit breaker is a high-voltage switch device widely used in power systems for controlling and protecting circuits. It uses vacuum as an arc-extinguishing medium and has excellent arc-extinguishing performance, high reliability, and long service life. The vacuum circuit breaker shell is used to carry internal electrical components.

[0003] The existing patent with the publication number CN209104064U and the name of a vacuum circuit breaker shell includes an end cover and a base. The end cover and the base are connected through at least one positioning assembly. The positioning assembly includes a mounting block and a positioning pin. The mounting block is fixed to the lower end surface of the end cover. The upper end surface of the base is provided with a mounting slot for the mounting block to extend into. The mounting block is provided with a positioning hole, and the positioning pin is arranged in the positioning hole. A fixing groove is arranged on the inner wall of the mounting slot. When the mounting block is embedded in the mounting slot, the positioning pin can extend into the fixing groove through the positioning hole. The fixing groove is provided with a anti-disengagement component to limit the separation of the positioning pin. When connecting the end cover and the base, the mounting block is first embedded in the corresponding mounting slot, and then the positioning pin is extended into the fixing groove through the positioning hole. At this time, the mounting block cannot move upwardly due to the limitation of the positioning pin. The positioning pin and the positioning magnet are attracted to each other to avoid the separation of the positioning pin and the fixing groove. The end cover and the base are not connected through bolts, and have the function of convenient disassembly and assembly.

[0004] For the related technology in the above, the inventors found that the vacuum circuit breaker shell is usually made of metal material. In use, the vacuum circuit breaker shell lacks insulation protection components, which cannot prevent the current on the outer wall of the vacuum circuit breaker shell from causing harm to maintenance personnel, affecting the safety of the maintenance of the vacuum circuit breaker. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the situation that the existing vacuum circuit breaker shell lacks insulation protection components, cannot prevent the current on the outer wall of the vacuum circuit breaker shell from causing harm to maintenance personnel, and affects the safety of the maintenance of the vacuum circuit breaker, the present application provides a vacuum circuit breaker shell.

[0006] The vacuum circuit breaker shell provided by the present application adopts the following technical scheme:

[0007] The utility model provides a kind of vacuum circuit breaker shell, including vacuum circuit breaker body, guard and ground, vacuum circuit breaker body includes shell, the bottom surface of shell is fixed with bracket horizontally, and the outside of shell is vertically provided with guard, the bottom surface of shell is fixed with fixed frame symmetrically, and fixed frame is fixed installation by bolt, guard includes guard frame, guard frame is fixedly assembled on the bottom surface of bracket, and the both sides of guard frame are fixed with multiple clamping frames along vertical direction, multiple clamping frames of guard frame are horizontally assembled with protection frame strip, and the outer wall of protection frame strip is vertically fixed with insulating plate, and ground is vertically provided on the bottom surface of guard frame.

[0008] By adopting the above technical scheme, the guard frame on the guard is inserted into the outside of the vacuum circuit breaker body, the bottom of the guard frame is fixedly assembled with the bracket on the bottom surface of the shell, then multiple clamping frames on the both sides of the guard frame are assembled with multiple protection frame strips, and the insulating plates on the multiple protection frame strips block the shell of the vacuum circuit breaker body, so that the guard provided outside the shell of the vacuum circuit breaker body can prevent the electric current on the outer wall of the shell from causing harm to the maintenance personnel, thereby ensuring the safety of the maintenance of the vacuum circuit breaker.

[0009] Optionally, multiple mounting studs are vertically fixed on the bottom surface of the bracket, multiple mounting holes are vertically and penetratingly formed on the guard frame to cooperate with the multiple mounting studs, and lock nuts are threadedly assembled on the bottom of the multiple mounting studs.

[0010] By adopting the above technical scheme, the bracket and the guard frame are inserted and connected one by one through the multiple mounting studs, and then the lock nuts are threadedly assembled on the mounting studs to lock and fixedly assemble the bracket and the guard frame.

[0011] Optionally, a clamping column is horizontally and slidingly assembled in the clamping frame, and a spring is horizontally sleeved on the outside of the clamping column, and the both ends of the spring are fixed on the end of the clamping column and the clamping frame, respectively.

[0012] By adopting the above technical scheme, when the protection frame strip is assembled in the clamping frame, the clamping column in the clamping frame is pulled out of the clamping frame to extrude and deform the spring, so as to insert the protection frame strip into the clamping frame.

[0013] Optionally, an insertion slot is horizontally formed in the middle of the protection frame strip, and the insertion slot of the protection frame strip is inserted with the clamping column.

[0014] By adopting the above technical scheme, after the protection frame strip is inserted into the clamping frame, the clamping column is released under the deformation force of the spring and is inserted into the insertion slot of the protection frame strip, so as to lock and install the stability of the protection frame strip inserted into the clamping frame.

[0015] Optionally, the ground includes a screw cylinder plate, the screw cylinder plate is horizontally arranged below the guard frame, and a conductive wire is vertically fixed on the middle of the bottom surface of the screw cylinder plate.

[0016] By adopting the technical scheme, the screw cylinder strip plate is used to be assembled on the bottom surface of the protective frame, the conductive wire on the bottom surface of the screw cylinder strip plate contacts the ground, and the shell on the vacuum circuit breaker body is grounded, thereby improving the effectiveness of the shell on the vacuum circuit breaker body.

[0017] Optionally, a screw post is vertically fixed on the bottom surface of the protective frame, and a screw shell is vertically rotatably connected to the top surface of the screw cylinder strip plate, and the screw shell on the screw cylinder strip plate is threadedly assembled with the screw post.

[0018] By adopting the technical scheme, the screw post on the bottom surface of the protective frame is threadedly assembled with the screw shell on the screw cylinder strip plate, thereby facilitating the electrical connection and assembly of the protective frame and the screw cylinder strip plate.

[0019] Optionally, a screw rod is vertically fixed at the bottom end of the conductive wire, and an assembly screw is threadedly assembled on the screw rod, and a grounding needle is vertically fixed on the bottom surface of the assembly screw.

[0020] By adopting the technical scheme, the screw rod on the bottom surface of the conductive wire is threadedly adjusted to install the assembly screw, and the grounding needle on the bottom surface of the assembly screw is inserted into the ground, thereby ensuring the grounding effectiveness of the conductive wire.

[0021] Optionally, an insulating sleeve is sleeved on the outside of the conductive wire.

[0022] By adopting the technical scheme, the insulating sleeve on the conductive wire is used to ensure the insulation of the conductive wire and protect the maintenance personnel.

[0023] In summary, the present application has at least one of the following beneficial technical effects: in use, the protective frame on the protective member is inserted into the outside of the vacuum circuit breaker body, the bottom of the protective frame is fixedly assembled with the support frame on the bottom surface of the shell, then a plurality of clamping frames on both sides of the protective frame are assembled with a plurality of protective frame strips, and the insulating plate on the plurality of protective frame strips blocks the shell of the vacuum circuit breaker body, thereby preventing the current on the outer wall of the shell from causing harm to the maintenance personnel, and ensuring the safety of the vacuum circuit breaker maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0025] Figure 2 is a schematic diagram of the structure of the embodiment of the present application in a disassembled state.

[0026] Figure 3 is a schematic diagram of the structure of the vacuum circuit breaker body in a disassembled state.

[0027] Figure 4 is a schematic diagram of the structure of the protective member in a disassembled state.

[0028] Figure 5 is a structural schematic view of the grounding piece in a disassembled state.

[0029] Reference signs: 1, vacuum circuit breaker body; 11, shell; 12, fixed frame; 13, support frame; 131, mounting stud; 14, locking nut; 2, protection piece; 21, protection frame; 211, stud; 22, clamping frame; 23, protection frame strip; 24, clamping column; 241, spring; 25, insulating plate; 3, grounding piece; 31, screw cylinder strip; 32, conductive wire; 33, screw rod; 34, assembled screw cylinder; 35, grounding pin; 36, insulating sleeve. DETAILED DESCRIPTION

[0030] The application will be further described in detail below with reference to the accompanying drawings.

[0031] The application discloses a vacuum circuit breaker shell. Figure 1 , Figure 2 , Figure 3 and Figure 4 , a vacuum circuit breaker shell, comprising a vacuum circuit breaker body 1, a protection piece 2 and a grounding piece 3, the vacuum circuit breaker body 1 comprises a shell 11, a support frame 13 is fixed horizontally on the bottom surface of the shell 11, and the protection piece 2 is arranged vertically on the outside of the shell 11, a fixed frame 12 is fixed symmetrically on the bottom surface of the shell 11, and the fixed frame 12 is fixed by bolts, the protection piece 2 comprises a protection frame 21, the protection frame 21 is fixed and assembled on the bottom surface of the support frame 13, and a plurality of clamping frames 22 are fixed vertically on both sides of the protection frame 21, a protection frame strip 23 is horizontally assembled in each clamping frame 22 of the protection frame 21, and an insulating plate 25 is fixed vertically on the outer wall of the protection frame strip 23, and the grounding piece 3 is arranged vertically on the bottom surface of the protection frame 21.

[0032] By adopting the above technical scheme, the protection frame 21 on the protection piece 2 is inserted into the outside of the vacuum circuit breaker body 1, the bottom of the protection frame 21 is fixed and assembled with the support frame 13 on the bottom surface of the shell 11, then a plurality of clamping frames 22 on both sides of the protection frame 21 are assembled with a plurality of protection frame strips 23, and the insulating plates 25 on the plurality of protection frame strips 23 block the shell 11 of the vacuum circuit breaker body 1, so that the protection piece 2 arranged outside the shell 11 of the vacuum circuit breaker body 1 can prevent the electric current on the outer wall of the shell 11 from causing harm to the maintenance personnel, thereby ensuring the safety of the vacuum circuit breaker maintenance.

[0033] Referring to Figure 1 , a plurality of mounting studs 131 are fixed vertically on the bottom surface of the support frame 13, a plurality of mounting holes matched with the plurality of mounting studs 131 are vertically provided on the protection frame 21, and locking nuts 14 are threadedly assembled on the bottom of the plurality of mounting studs 131.

[0034] By adopting the technical scheme, the bracket 13 and the protection frame 21 are correspondingly inserted through the plurality of mounting studs 131, and then the locking nuts 14 are threadedly assembled on the mounting studs 131, so as to lock and fix the assembled bracket 13 and the protection frame 21.

[0035] With reference to Figure 1 The card column 24 is horizontally slidably assembled in the card frame 22, and the outer portion of the card column 24 is horizontally sleeved with a spring 241, and the two ends of the spring 241 are fixed on the end portion of the card column 24 and the card frame 22 respectively.

[0036] By adopting the technical scheme, when the protection frame strip 23 is assembled in the card frame 22, the card column 24 in the card frame 22 is pulled out of the card frame 22, and the spring 241 is deformed for extrusion, and the protection frame strip 23 is inserted into the card frame 22.

[0037] With reference to Figure 1 The middle portion of the protection frame strip 23 is horizontally provided with a slot, and the slot of the protection frame strip 23 is inserted with the card column 24.

[0038] By adopting the technical scheme, after the protection frame strip 23 is inserted into the card frame 22, the card column 24 is inserted into the slot of the protection frame strip 23 under the action of the deformation force of the spring 241, so as to lock and fix the stability of the protection frame strip 23 inserted into the card frame 22.

[0039] With reference to Figure 1 The grounding member 3 comprises a screw cylinder strip plate 31, and the screw cylinder strip plate 31 is horizontally arranged below the protection frame 21, and the bottom surface of the screw cylinder strip plate 31 is vertically fixed with a conductive wire 32.

[0040] By adopting the technical scheme, the screw cylinder strip plate 31 is used to be assembled on the bottom surface of the protection frame 21, and the conductive wire 32 on the bottom surface of the screw cylinder strip plate 31 is used to contact the ground, so as to ground the shell 11 on the vacuum circuit breaker body 1 and improve the effectiveness of the shell 11 on the vacuum circuit breaker body 1.

[0041] With reference to Figure 1 The bottom surface of the protection frame 21 is vertically fixed with a screw column 211, and the top surface of the screw cylinder strip plate 31 is vertically rotatably connected with a screw shell, and the screw shell on the screw cylinder strip plate 31 is threadedly assembled with the screw column 211.

[0042] By adopting the technical scheme, the screw column 211 on the bottom surface of the protection frame 21 is threadedly assembled with the screw shell on the screw cylinder strip plate 31, so as to facilitate the electrical connection and assembly of the protection frame 21 and the screw cylinder strip plate 31.

[0043] With reference to Figure 1The bottom end of the conductive wire 32 is vertically fixed with a screw rod 33, and the screw rod 33 is threadedly assembled with an assembling screw cylinder 34, and the bottom surface of the assembling screw cylinder 34 is vertically fixed with a grounding needle 35.

[0044] By adopting the above technical scheme, the screw rod 33 on the bottom surface of the conductive wire 32 is threadedly adjusted to install the assembling screw cylinder 34, and the grounding needle 35 on the bottom surface of the assembling screw cylinder 34 is inserted into the ground, so as to ensure the grounding effectiveness of the conductive wire 32.

[0045] With reference to Figure 1 The conductive wire 32 is externally sleeved with an insulating sleeve 36.

[0046] By adopting the above technical scheme, the insulating sleeve 36 on the conductive wire 32 is used to ensure the insulation of the conductive wire 32 and protect the maintenance personnel.

[0047] The implementation principle of the vacuum circuit breaker shell according to the embodiment of the application is as follows: in use, the protective frame 21 on the protection piece 2 is inserted into the outside of the vacuum circuit breaker body 1, the bottom of the protective frame 21 is fixedly assembled with the supporting frame 13 on the bottom surface of the shell 11, then a plurality of clamping frames 22 on both sides of the protective frame 21 are assembled with a plurality of protective frame strips 23, the insulating plate 25 on the plurality of protective frame strips 23 blocks the shell 11 of the vacuum circuit breaker body 1, the screw cylinder strip plate 31 is used to be assembled on the bottom surface of the protective frame 21, the conductive wire 32 on the bottom surface of the screw cylinder strip plate 31 contacts the ground, the screw rod 33 on the bottom surface of the conductive wire 32 is threadedly adjusted to install the assembling screw cylinder 34, and the grounding needle 35 on the bottom surface of the assembling screw cylinder 34 is inserted into the ground, so as to ensure the grounding effectiveness of the conductive wire 32.

[0048] The above are the preferred embodiments of the application, and are not used to limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A vacuum circuit breaker housing, characterized by, The utility model provides a kind of vacuum circuit breaker, including vacuum circuit breaker body (1), protection piece (2) and grounding piece (3), the vacuum circuit breaker body (1) includes shell (11), the bottom surface of shell (11) is fixed with bracket (13) horizontally, and the outside vertical of shell (11) is provided with protection piece (2), the bottom surface of shell (11) is fixed with fixed frame (12) symmetrically, and fixed frame (12) is fixed by bolt installation, the protection piece (2) includes protection frame (21), the bottom surface of bracket (13) is fixedly assembled with protection frame (21), and the both sides of protection frame (21) are fixed with multiple card frames (22) along vertical direction, multiple card frames (22) of protection frame (21) are horizontally assembled with protection frame strip (23), and the outer wall of protection frame strip (23) is vertically fixed with insulating plate (25), the bottom surface of protection frame (21) is vertically provided with the grounding piece (3).

2. A vacuum circuit breaker housing according to claim 1, characterized in that: The bottom surface of bracket (13) is vertically fixed with multiple mounting studs (131), and multiple mounting holes matched with multiple mounting studs (131) are vertically penetrated on protection frame (21), the bottom of multiple mounting studs (131) is threadedly assembled with locking nut (14).

3. A vacuum circuit breaker housing as claimed in claim 1, wherein: The card frame (22) is horizontally slidably assembled with the card column (24), and the outer part of the card column (24) is horizontally sleeved with the spring (241), and the both ends of the spring (241) are fixed on the end of the card column (24) and the card frame (22) respectively.

4. A vacuum circuit breaker housing according to claim 3, characterized in that: The middle part of the protection frame strip (23) is horizontally provided with the insertion slot, and the insertion slot of the protection frame strip (23) is inserted with the card column (24).

5. A vacuum circuit breaker housing as claimed in claim 1, wherein: The grounding piece (3) includes screw cylinder strip plate (31), the screw cylinder strip plate (31) is horizontally arranged below the protection frame (21), and the bottom surface of the screw cylinder strip plate (31) is vertically fixed with the conductive wire (32).

6. A vacuum circuit breaker housing according to claim 5, characterized in that: The bottom surface of the protection frame (21) is vertically fixed with the screw column (211), and the top surface of the screw cylinder strip plate (31) is vertically rotatably connected with the screw shell, and the screw shell on the screw cylinder strip plate (31) is threadedly assembled with the screw column (211).

7. A vacuum circuit breaker housing according to claim 6, characterized in that: The bottom end of the conductive wire (32) is vertically fixed with the screw rod (33), and the screw rod (33) is threadedly assembled with the assembly screw cylinder (34), and the bottom surface of the assembly screw cylinder (34) is vertically fixed with the grounding needle (35).

8. A vacuum circuit breaker housing according to claim 7, characterized in that: The outer part of the conductive wire (32) is sleeved with the insulating sleeve (36).

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