CN224059228U - A tapping device for thermal elements of molded case circuit breakers - Google Patents
A tapping device for thermal elements of molded case circuit breakersInfo
- Publication number
- CN224059228U CN224059228U CN202520753245.5U CN202520753245U CN224059228U CN 224059228 U CN224059228 U CN 224059228U CN 202520753245 U CN202520753245 U CN 202520753245U CN 224059228 U CN224059228 U CN 224059228U
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- thermal element
- bearing seat
- supporting
- pressing
- compression
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Abstract
The utility model relates to a tapping device for a thermal element of a molded case circuit breaker. The utility model aims to solve the technical problem of providing a tapping device for a thermal element of a molded case circuit breaker. The technical scheme includes that the hot element pressing assembly comprises a pressing block, a pre-pressing spring and a connecting screw, the hot element pressing assembly comprises a supporting sleeve, a supporting spring and a plug, a main action port of the bearing seat, a bearing seat bearing groove and a bearing seat limiting hole are formed in the bearing seat, a hot element placing groove is formed in the middle of the bottom surface of the main action port of the bearing seat, a front positioning column is arranged on the hot element placing groove, and a rear positioning column is arranged on the bearing seat bearing groove. The utility model has the advantages that the compression block can realize rapid compression on the heating part of the thermal element of the molded case circuit breaker and the connecting part on the thermal element under the action of the compression force of the pre-compression spring, the overall tapping time is shortened, and the flexibility is higher.
Description
Technical Field
The utility model relates to a tapping device for a thermal element of a molded case circuit breaker.
Background
The thermal tripping system of the molded case circuit breaker is formed by splicing a thermal element, a bimetallic strip and a rear seat through multiple electric welding processes, as shown in fig. 8, the thermal element of the traditional molded case circuit breaker comprises an upper thermal element connecting part 70, a thermal element heating part 71 and a lower thermal element connecting part 72 which are sequentially bent and formed, the upper thermal element connecting part 70 and the thermal element heating part 71 are arranged in parallel, the lower thermal element connecting part 71 is vertically bent to form the lower thermal element connecting part 72, the upper thermal element connecting part 70 is provided with a thermal element waist-shaped hole 74, the thermal element heating part 71 is provided with a thermal element opening 75 for riveting, the lower thermal element connecting part 72 is provided with a thermal element thread seat 76, the thermal element thread seat 76 is internally provided with a thermal element thread fixing hole 77 which is vertically arranged with the thermal element opening 75, the thread tapping device of the traditional molded case circuit breaker is required to perform thread tapping treatment on the thermal element thread fixing hole 77, or the tool for fixing the thermal element of the molded case circuit breaker is excessively tight, the thermal element is inserted or the thermal element is difficult to be inserted into the whole process, the thermal element is difficult to be placed into the process to be easily or the process to be easily moved, or the thermal element is difficult to be threaded, the process is difficult to be easily placed into the process to be relatively low, or the thermal element is difficult to be easily fixed, and the process is difficult to be easily and the threaded and the element is difficult to be easily placed; in addition, the conventional device has limited support capability for the lower connection portion 72 of the heat element, and when the screw fixing hole 77 of the heat element is tapped, the lower connection portion 72 of the heat element is easily slightly bent due to the action of the tapping force, so that the screw processing effect is poor, the reliability of the tapping is reduced, and improvement and optimization are performed for the reason.
Disclosure of utility model
In order to solve the problems, the technical problem to be solved by the utility model is to provide a tapping device for a thermal element of a molded case circuit breaker.
The utility model relates to a technical scheme adopted by a thermal element tapping device of a molded case circuit breaker, which is characterized by comprising a thermal element bearing seat, a vertically movable geothermal element pressing assembly and a transversely arranged thermal element supporting assembly, wherein the thermal element pressing assembly comprises a pressing block, a pre-pressing spring and a connecting screw, the thermal element supporting assembly comprises a supporting sleeve, a supporting spring and a plug, a bearing seat main action opening for the upward and downward movement of the pressing block, a bearing seat bearing groove for the bearing of a thermal element heating part and a transversely penetrated bearing seat limiting hole are arranged on the thermal element bearing seat, the bearing seat limiting hole is used for the installation and limiting of the thermal element supporting assembly, a thermal element placing groove for the bearing of a connecting part on the thermal element is arranged in the middle of the bottom surface of the bearing seat main action opening, a front positioning column penetrating into a thermal element kidney-shaped hole is arranged on the thermal element placing groove, and a rear positioning column penetrating into a thermal element opening is arranged on the bearing seat bearing groove;
The compressing block comprises a compressing block main body and a compressing block pressing part arranged below the compressing block main body, the compressing block pressing part is used for compressing the heating part of the heat element and the upper connecting part of the heat element, a compressing block front positioning groove in butt joint with the front positioning column and a compressing block rear positioning groove in butt joint with the rear positioning column are arranged on the compressing block pressing part, and the pre-compressing spring is arranged between the upper end of the compressing block and the upper end face of the main action port of the bearing seat.
The connecting screw penetrates through the thermal element bearing seat and is connected with the compression block after passing through the upper part of the main action opening of the bearing seat, the pre-compression spring is sleeved on the connecting screw, one end of the pre-compression spring abuts against the upper end of the compression block, and the other end of the pre-compression spring abuts against the upper end face of the main action opening of the bearing seat.
The supporting sleeve comprises a sleeve body and a sleeve limiting part, a sleeve yielding groove used for placing a heat element screw seat is formed in the sleeve body, the front end of the heat element bearing seat at the position of a bearing seat limiting hole is provided with a bearing seat front flange used for limiting the sleeve limiting part, the plug is fixed at the rear end of the heat element bearing seat at the position of the bearing seat limiting hole, the supporting spring is arranged in the bearing seat limiting hole, one end of the supporting spring abuts against the sleeve limiting part and the other end of the supporting spring abuts against the plug, and the sleeve body is used for supporting the inner side of the lower connecting part of the heat element when tapping.
The plug is in threaded connection with the inner wall of the limit hole of the bearing seat.
The bottom surface of the main action opening of the bearing seat is provided with bearing seat guide posts at two sides of the thermal element placing groove, and the main body of the compression block is provided with compression block guide holes corresponding to the bearing seat guide posts.
The pressing block is characterized in that a pressing block manual operation part is arranged on the pressing block main body, and a hand lifting opening convenient for manual operation of a person is arranged at the bottom of the pressing block manual operation part.
The tapping device for the thermal element of the molded case circuit breaker has the advantages that the compression block can rapidly compress the thermal element heating part of the thermal element of the molded case circuit breaker and the upper connecting part of the thermal element under the action of the compression spring, compared with the traditional cylinder compression, the total tapping time is shortened, the flexibility is higher, the front positioning column and the rear positioning column can effectively reduce the shaking of the thermal element of the molded case circuit breaker, the compression accuracy during compression is improved, the lower connecting part of the thermal element is effectively prevented from slightly bending under the action of the tapping force during the tapping process, and the tapping effect and the reliability are remarkably improved.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the thermal element tapping apparatus of the molded case circuit breaker of the present utility model;
FIG. 2 is an exploded view of the thermal element compression assembly of the present utility model;
FIG. 3 is an exploded view of the thermal element support assembly of the present utility model;
FIG. 4 is a schematic elevational view of a thermal element receptacle according to the present utility model;
FIG. 5 is a schematic view of the structure of the compression block of the present utility model;
FIG. 6 is a schematic view of the back side structure of the thermal element receptacle of the present utility model;
FIG. 7 is a schematic view of the structure of the support sleeve of the present utility model;
fig. 8 is a schematic structural view of a molded case circuit breaker thermal element.
Detailed Description
As shown in fig. 1-7, the thermal element tapping device of the molded case circuit breaker comprises a thermal element bearing seat 1, a thermal element pressing assembly 2 capable of vertically moving, and a thermal element supporting assembly 3 arranged transversely, wherein the thermal element pressing assembly 2 comprises a pressing block 5, a pre-compression spring 6 and a connecting screw 7, the thermal element supporting assembly 3 comprises a supporting sleeve 8, a supporting spring 9 and a plug 10, the thermal element bearing seat 1 is provided with a bearing seat main action opening 11 for the upward and downward movement of the pressing block 5, a bearing seat bearing groove 12 for the bearing of a thermal element heating part 71, a bearing seat limit hole 13 penetrating transversely, the bearing seat limit hole 13 is used for the installation and limit of the thermal element supporting assembly 3, a thermal element embedding groove 14 for bearing a connecting part 70 on the thermal element is arranged in the middle of the bottom surface of the bearing seat main action opening 11, a front positioning post 15 penetrating into the thermal element shaping hole 74 is arranged on the thermal element embedding groove 14, the bearing seat 12 is provided with a rear positioning post 16 penetrating into the thermal element opening 75, the pressing block 16 comprises a pressing block 5 and a bearing seat limit hole 13 penetrating transversely, the thermal element heating part 21 is arranged on the lower surface of the thermal element pressing block, and the thermal element pressing block 20 is connected with the upper end face of the thermal element pressing block 20, and the thermal element pressing block 70 is arranged on the front positioning block 20, and the thermal element pressing block is connected with the upper end face of the thermal element pressing block 70, and the thermal element pressing part is provided with the thermal element pressing part, and the thermal element pressing assembly is provided with a connecting part, and the thermal element pressing part is provided with a connecting part, and the thermal element pressing device is provided with a thermal element pressing device, and has a device, and a thermal element device. Compared with the traditional cylinder compaction, the front positioning column 15 and the rear positioning column 16 can effectively reduce the shaking of thermal elements of the molded case circuit breaker and improve the compaction accuracy during compaction.
The connecting screw 7 passes through the thermal element bearing seat 1 and is connected with the compression block 5 after passing through the upper part of the main action opening 11 of the bearing seat, the pre-compression spring 6 is sleeved on the connecting screw 7, one end of the pre-compression spring is propped against the upper end of the compression block 5, and the other end of the pre-compression spring is propped against the upper end face of the main action opening 11 of the bearing seat.
The supporting sleeve 8 comprises a sleeve barrel 25 and a sleeve limiting part 26, a sleeve abdicating groove 27 used for placing the heat element threaded seat 76 is formed in the sleeve barrel 25, the front end of the heat element supporting seat 1 at the position of the position limiting hole 13 of the bearing seat is provided with a bearing seat front flange 28 used for limiting the position of the sleeve limiting part 26, the plug 10 is fixed at the position of the heat element supporting seat 1 at the rear end of the position limiting hole 13 of the bearing seat, the supporting spring 9 is arranged in the position limiting hole 13 of the bearing seat, one end of the supporting spring 9 abuts against the sleeve limiting part 26 and the other end of the supporting spring abuts against the plug 10, the sleeve barrel 25 is used for supporting the inner side of the heat element lower connecting part 72, and supporting force is provided for the supporting sleeve 8 through the supporting spring 9, so that the heat element lower connecting part 72 can be supported when the heat element threaded fixing hole 77 of the heat element threaded seat 76 is threaded, and the heat element lower connecting part 72 is effectively prevented from slightly bending under the action of tapping force, so that the tapping effect is poor.
The plug 10 is in threaded connection with the inner wall of the limit hole 13 of the bearing seat, the position of the plug 10 can be adjusted according to the requirement to adjust the supporting force of the supporting spring 9, and the use is more flexible.
The bottom surface of the main action port 11 of the bearing seat is provided with bearing seat guide posts 30 at two sides of the thermal element placing groove 14, and the main body 20 of the compression block is provided with compression block guide holes 31 corresponding to the bearing seat guide posts 30, so that the problems of inaccurate positioning or uneven compression force caused by deflection of the compression block 5 in the moving process are reduced.
The compaction block main body 20 is provided with the compaction block manual operation part 33, and the bottom of the compaction block manual operation part 33 is provided with the hand lifting opening 34 which is convenient for manual operation of personnel, so that the working strength of operators is reduced, and the tapping efficiency is improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. The tapping device for the thermal element of the molded case circuit breaker is characterized by comprising a thermal element bearing seat (1), a vertically movable geothermal element pressing assembly (2) and a transversely arranged thermal element supporting assembly (3), wherein the thermal element pressing assembly (2) comprises a pressing block (5), a pre-pressing spring (6) and a connecting screw (7), the thermal element supporting assembly (3) comprises a supporting sleeve (8), a supporting spring (9) and a plug (10), a bearing seat main action opening (11) for the pressing block (5) to move up and down, a bearing seat bearing groove (12) for the bearing of a thermal element heating part (71) and a transversely penetrated bearing seat limiting hole (13), the bearing seat limiting hole (13) is used for the installation and limiting of the thermal element supporting assembly (3), a thermal element placing groove (14) for the bearing of a connecting part (70) on the thermal element is arranged in the middle of the bottom surface of the bearing seat main action opening (11), a bearing seat main action opening (12) is arranged on the thermal element placing groove (14), a bearing seat positioning post (16) is arranged in the bearing seat (75), and a positioning post (16) is arranged on the bearing seat main action opening (74).
The compression block (5) comprises a compression block main body (20) and a compression block pressing part (21) arranged below the compression block main body (20), the compression block pressing part (21) is used for pressing the heating part (71) of the thermal element and the connecting part (70) on the thermal element, the compression block pressing part (21) is provided with a compression block front positioning groove (22) in butt joint with the front positioning column (15), a compression block rear positioning groove (23) in butt joint with the rear positioning column (16), and the pre-compression spring (6) is arranged between the upper end of the compression block (5) and the upper end face of the main action port (11) of the bearing seat.
2. The tapping device for the thermal element of the molded case circuit breaker according to claim 1, wherein the connecting screw (7) penetrates through the thermal element bearing seat (1) and is connected with the compression block (5) after passing through the upper part of the main action opening (11) of the bearing seat, the pre-compression spring (6) is sleeved on the connecting screw (7), one end of the pre-compression spring is propped against the upper end of the compression block (5), and the other end of the pre-compression spring is propped against the upper end face of the main action opening (11) of the bearing seat.
3. The tapping device for the thermal element of the molded case circuit breaker according to claim 1, wherein the supporting sleeve (8) comprises a sleeve barrel (25) and a sleeve limiting part (26), a sleeve yielding groove (27) for placing a threaded seat (76) of the thermal element is formed in the sleeve barrel (25), a front end of the thermal element supporting seat (1) at the position of the supporting seat limiting hole (13) is provided with a supporting seat front flange (28) for limiting the sleeve limiting part (26), the plug (10) is fixed at the rear end of the thermal element supporting seat (1) at the position of the supporting seat limiting hole (13), the supporting spring (9) is placed in the supporting seat limiting hole (13), one end of the supporting spring is propped against the sleeve limiting part (26) and the other end of the supporting spring is propped against the plug (10), and the sleeve barrel (25) is used for supporting the inner side of a lower connecting part (72) of the thermal element during tapping.
4. The tapping device for thermal elements of molded case circuit breaker according to claim 3, wherein the plug (10) is in threaded connection with the inner wall of the limit hole (13) of the socket.
5. The tapping device for thermal elements of molded case circuit breaker according to claim 2, wherein the bottom surface of the main action port (11) of the socket is provided with socket guide posts (30) at both sides of the thermal element insertion groove (14), and the main body (20) of the compression block is provided with compression block guide holes (31) corresponding to the socket guide posts (30).
6. The tapping device for the thermal element of the molded case circuit breaker according to claim 2, wherein the pressing block main body (20) is provided with a pressing block manual operation part (33), and a hand lifting opening (34) which is convenient for manual operation of a person is arranged at the bottom of the pressing block manual operation part (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520753245.5U CN224059228U (en) | 2025-04-21 | 2025-04-21 | A tapping device for thermal elements of molded case circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520753245.5U CN224059228U (en) | 2025-04-21 | 2025-04-21 | A tapping device for thermal elements of molded case circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224059228U true CN224059228U (en) | 2026-03-31 |
Family
ID=99200882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520753245.5U Active CN224059228U (en) | 2025-04-21 | 2025-04-21 | A tapping device for thermal elements of molded case circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224059228U (en) |
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2025
- 2025-04-21 CN CN202520753245.5U patent/CN224059228U/en active Active
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