CN213511580U - Interlocking pin for circuit breaker - Google Patents
Interlocking pin for circuit breaker Download PDFInfo
- Publication number
- CN213511580U CN213511580U CN202022176834.1U CN202022176834U CN213511580U CN 213511580 U CN213511580 U CN 213511580U CN 202022176834 U CN202022176834 U CN 202022176834U CN 213511580 U CN213511580 U CN 213511580U
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- pin
- threaded rod
- circuit breaker
- mounting hole
- breaker according
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Abstract
The utility model relates to an interlocking pin for circuit breaker, including threaded rod and pin shell, the one end central authorities of pin shell are equipped with the mounting hole, the threaded rod includes erection segment and screw thread section, the erection segment insert in the mounting hole fixed, the screw thread section expose unsettledly. Compared with the prior art, compared with the integral structure of the existing interlocking pin, the structure of the two separated connecting pieces is simpler, the processing and the production are convenient, and the yield is high; meanwhile, the connection between the threaded rod and the pin shell obviously improves the strength of the joint and prevents the joint from being broken.
Description
Technical Field
The utility model belongs to the technical field of circuit breaker part manufacturing and specifically relates to an interlocking pin for circuit breaker is related to.
Background
The interlocking pin is an important part in the circuit breaker and plays a role in linkage between modules. As shown in fig. 1, the conventional interlocking pin is a one-piece member including a cylindrical housing a, a hexagonal root b, and a threaded end c. However, the conventional structure has the following problems: 1. the thread end part has complex production process, easy damage and low yield. 2. When the connecting piece is used, the connecting part of the thin and short thread end part c and the hexagonal root part b is stressed greatly and is easy to break. 3. With interlocking round pin complex screw hole edge ubiquitous burr, the burr supports to lean on hexagonal root b and has aggravated the inhomogeneous atress of screw thread tip c, breaks more easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an interlocking round pin for circuit breaker in order to overcome the defect that above-mentioned prior art exists, improve the production yields, overcome the easy cracked problem of screw end connection department.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides an interlocking pin for circuit breaker, includes threaded rod and pin shell, the one end central authorities of pin shell are equipped with the mounting hole, the threaded rod includes erection segment and screw thread section, the erection segment insert in the mounting hole fixed, the screw thread section expose unsettledly.
Further, the mounting hole is a threaded hole, and the threaded rod is a full threaded rod.
Furthermore, one end of the threaded rod is provided with a screwdriver matching slotted hole.
Furthermore, the threaded rod is a No. 45 steel threaded rod.
Further, the pin shell comprises a hexagonal pin root and a cylindrical pin body, and the mounting hole is located at one end of the pin root.
Further, the opening end of the mounting hole is provided with a chamfer.
Further, the mounting section and the mounting hole are connected through a spline structure and are connected in an interference fit mode.
Further, the length of the mounting section is 1.5-4 times of the length of the threaded section.
Further, the maximum width of the root of the pin is 8 mm.
Compared with the prior art, the utility model has the advantages of it is following:
1. the interlocking pin is divided into the threaded rod and the pin shell, and the threaded rod is inserted into the pin shell to form a whole, so that compared with the whole structure of the existing interlocking pin, the two separated connecting pieces are simpler in structure, convenient to process and produce and high in yield; meanwhile, the connection between the threaded rod and the pin shell obviously improves the strength of the joint and prevents the joint from being broken.
2. The utility model discloses a threaded rod can adopt full threaded rod, is convenient for process, production to and the connection of pin shell. And a screwdriver matched slotted hole is formed in one end of the threaded rod, so that the convenience of assembling the threaded rod and the mounting hole is further improved.
3. The utility model discloses be equipped with the chamfer at the open end of mounting hole, after the interlocking pin assembly was accomplished, the burr on the ring that the chamfer formed can cladding cooperation structure for the steady laminating of pin root, the atress is even.
Drawings
Fig. 1 is a schematic structural view of a conventional interlocking pin.
Fig. 2 is a schematic perspective view of a first embodiment.
Fig. 3 is a schematic cross-sectional structure diagram of the first embodiment.
Reference numerals: 1. the bolt comprises a threaded rod 11, a mounting section 12, a threaded section 13, a screwdriver matching groove hole 2, a pin shell 21, a mounting hole 22, a pin root 23, a pin body 24, a chamfer angle a, a cylindrical shell, a hexagonal root b, a threaded end c.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example one
As shown in fig. 2 and 3, the present embodiment provides an interlock pin for a circuit breaker, including a threaded rod 1 and a pin housing 2. The pin housing 2 includes a hexagonal pin root 22 and a cylindrical pin body 23. A mounting hole 21, specifically a threaded hole, is provided in the center of the end of the pin root 22. The threaded rod 1 is a full threaded rod. One end of the threaded rod 1 is inserted into the mounting hole 21 to be fixed, and the other end is exposed and suspended. The inserted part of the threaded rod 1 is the installation section 11, and the exposed part is the threaded section 12.
The length of the mounting section 11 is generally 1.5 to 4 times, preferably 3 times, the length of the threaded section 12.
The suspended end of the threaded rod 1 is also provided with a screwdriver matching slot hole 13, which is a hexagonal matching hole in the embodiment. Thus, the operator can fit the threaded rod 1 and the mounting hole 21 together with the hexagonal screwdriver.
The threaded rod 1 adopts a No. 45 steel threaded rod, and the strength of the rod body and the threads is ensured.
To overcome the problem of mating surface burrs, the present embodiment is further provided with a chamfer 24, preferably a C0.8 chamfer, at the open end of the mounting hole 21. The ring formed by chamfer 24 may wrap around burrs on the mating structure, allowing pin root 22 to fit smoothly and evenly over the mating surface.
In addition, the maximum width of pin root 22 in this embodiment is 8mm, avoiding the problem of interference of pin root 22 with the mating surface base.
Example two
The difference between this embodiment and the first embodiment is that the threaded rod includes a mounting section and a threaded section, the mounting section is inserted into the mounting hole 21 and fixed, and the threaded section is exposed and suspended. The mounting section is connected with the mounting hole through a spline structure in an interference fit mode. During installation, the installation section is directly inserted into the installation hole, so that assembly can be completed, and the assembly efficiency is high.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (9)
1. The utility model provides an interlocking pin for circuit breaker, its characterized in that includes threaded rod (1) and pin shell (2), the one end central authorities of pin shell (2) are equipped with mounting hole (21), threaded rod (1) are including installation section (11) and screw thread section (12), installation section (11) insert in mounting hole (21) fixed, screw thread section (12) expose unsettledly.
2. Interlocking pin for circuit breaker according to claim 1, characterized in that said mounting hole (21) is a threaded hole and said threaded rod (1) is an all-threaded rod.
3. Interlocking pin for circuit breaker according to claim 2, characterized in that one end of the threaded rod (1) is provided with a screwdriver engagement slot (13).
4. Interlocking pin for circuit breaker according to claim 2, characterized in that said threaded rod (1) is a 45-gauge steel threaded rod.
5. Interlocking pin for a circuit breaker according to claim 1, characterized in that the pin housing (2) comprises a hexagonal pin root (22) and a cylindrical pin body (23), the mounting hole (21) being located at one end of the pin root (22).
6. Interlocking pin for circuit breaker according to claim 1, characterized in that the open end of the mounting hole (21) is provided with a chamfer (24).
7. Interlocking pin for a circuit breaker according to claim 1, characterized in that said mounting segment (11) and mounting hole (21) are connected by a splined structure and are connected by interference fit.
8. The interlock pin for a circuit breaker according to claim 1, wherein the length of the mounting section (11) is 1.5 to 4 times the length of the threaded section (12).
9. Interlocking pin for a circuit breaker according to claim 5, characterized in that the maximum width of the pin root (22) is 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022176834.1U CN213511580U (en) | 2020-09-28 | 2020-09-28 | Interlocking pin for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022176834.1U CN213511580U (en) | 2020-09-28 | 2020-09-28 | Interlocking pin for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213511580U true CN213511580U (en) | 2021-06-22 |
Family
ID=76463261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022176834.1U Active CN213511580U (en) | 2020-09-28 | 2020-09-28 | Interlocking pin for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213511580U (en) |
-
2020
- 2020-09-28 CN CN202022176834.1U patent/CN213511580U/en active Active
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