CN219529516U - Screw pin device - Google Patents
Screw pin device Download PDFInfo
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- CN219529516U CN219529516U CN202320363627.8U CN202320363627U CN219529516U CN 219529516 U CN219529516 U CN 219529516U CN 202320363627 U CN202320363627 U CN 202320363627U CN 219529516 U CN219529516 U CN 219529516U
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- threaded
- screw
- pin
- clamping part
- hole
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Abstract
The utility model discloses a screw rod pin device, which belongs to the technical field of fastening members and comprises a screw rod and a threaded pin, wherein the threaded pin is provided with a threaded through hole, the threaded pin is connected to the screw rod through the threaded through hole in a threaded manner, and threaded holes are correspondingly formed in the threaded pins positioned at two sides of the threaded through hole; the end face integrated into one piece of screw rod has clamping part, the clamping surface of clamping part is provided with the blind hole along radial direction. The utility model is suitable for fastening and mounting of compact machinery, meets the requirements of mounting and dismounting of the whole structure in a narrow space, ensures the fastening performance and effectively prevents loosening.
Description
Technical Field
The utility model belongs to the technical field of fastening members, and particularly relates to a screw pin device.
Background
With the development of the industrial society, the degree of intensification and refinement of equipment are greatly deepened, and the arrangement among the institutions becomes tighter. For parts at special positions, the general disassembly tool can not completely meet the disassembly and assembly requirements, so that the parts are difficult to assemble and disassemble, and the parts are required to be subjected to targeted transformation for disassembly and assembly.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a screw pin device which is suitable for fastening and mounting of compact machinery, meets the requirements of mounting and dismounting of the whole structure in a narrow space, can ensure the fastening performance and effectively prevents loosening.
The screw rod pin device comprises a screw rod and a threaded pin, wherein the threaded pin is provided with a threaded through hole, the threaded pin is connected to the screw rod through the threaded through hole in a threaded manner, and threaded holes are correspondingly formed in the threaded pins positioned on two sides of the threaded through hole; the end face integrated into one piece of screw rod has clamping part, the clamping surface of clamping part is provided with the blind hole along radial direction.
Further, the blind holes corresponding to the bearing seat installation end surfaces of the adjacent screw rods are internally provided with retaining strips, the retaining strips are L-shaped rod bodies, one ends of the retaining strips are arranged in the blind holes, and the other ends of the retaining strips are bent towards the bearing seat installation end surfaces of the adjacent screw rods and welded and fixed. The retaining strip that sets up can effectively guarantee that the screw rod no longer loosens, guarantees overall connection structure's fastening effect.
Further, the blind holes are formed in a plurality of, and the blind holes are uniformly distributed on the clamping surface of the clamping part. The installation and operation of different positions are satisfied, and the installation of operators is convenient.
Further, the clamping part structure is a cylinder or a prism.
Further, the size of the clamping part is smaller than the metric size of the screw corresponding to the nut.
The utility model has the advantages and technical effects that: due to the adoption of the technical scheme, the fastening device is suitable for fastening installation of compact machinery, meets the requirements of installation and disassembly of the whole structure in a narrow space, can ensure the tightness and effectively prevents loosening. Through the blind hole arranged on the clamping part, the inserted rod can be inserted into the blind hole for fastening, and the screw rod is screwed; screw holes are correspondingly formed in the threaded pins, bolts can be screwed into the screw holes when the threaded pins are disassembled, and the pin pulling operation is convenient when the threaded pins are disassembled.
Drawings
FIG. 1 is a schematic view of the overall structure provided by an embodiment of the present utility model;
FIG. 2 is a schematic view of a threaded pin according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a clamping portion according to an embodiment of the present utility model;
fig. 4 is a schematic view of a mounting structure according to an embodiment of the present utility model.
In the figure: 1. a screw; 2. a threaded pin; 21. a threaded through hole; 22. a screw hole; 3. a clamping part; 31. a blind hole; 4. a stop strip.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 4, the present utility model provides a screw pin device including a screw 1 and a threaded pin 2, the threaded pin 2 being provided with a threaded through hole 21, the threaded pin 2 being screwed to the screw 1 through the threaded through hole 21, the screw 1 and the threaded pin 2 being screwed to each other by screw threads. Screw holes 22 are correspondingly arranged on the threaded pins 2 positioned on two sides of the threaded through holes 21; the end face of the screw 1 is integrally formed with a clamping part 3, and specifically, the clamping part 3 is in a cylinder or prism structure. The size of the clamping part 3 is smaller than the metric size of the screw 1 corresponding to the nut, specifically, the size of the clamping part 3 and the nut head with the same specification are scaled and increased in thickness, so that the movable space for fastening the wrench is increased, for example, the screw 1 is M42 size, and the size of the clamping part 3 is M36 nut size. The clamping surface of the clamping part 3 is provided with blind holes 31 along the radial direction, specifically, the blind holes 31 are provided with a plurality of blind holes 31, and the blind holes 31 are uniformly distributed on the clamping surface of the clamping part 3. The installation and operation of different positions are satisfied, and the installation of operators is convenient.
The blind hole 31 corresponding to the bearing seat installation end face of the adjacent screw 1 is internally provided with a stop strip 4, the stop strip 4 is an L-shaped rod body, one end of the stop strip 4 is arranged in the blind hole 31, and the other end of the stop strip is bent towards the bearing seat installation end face of the adjacent screw 1 and welded and fixed. The arranged retaining strip 4 can effectively ensure that the screw 1 is not loosened any more, and ensure the fastening effect of the integral connection structure.
The distance S between the clamping part 3 and the bearing seat is increased, so that the movable space for fastening the wrench can be increased, or the wrench can be directly fastened by using a pneumatic socket wrench. The blind hole 31 of the clamping surface of the clamping part 3 can also be used for fastening action, and a straight rod can be inserted into the blind hole 31 to rotate the screw 1 until screwing. After the fastening is finished, one end of the retaining strip 4 is inserted into the blind hole 31, and the other end of the retaining strip is attached to the bearing seat for welding and fixing, so that the screw 1 can be effectively prevented from loosening. When the threaded pin 2 is disassembled, a bolt can be screwed into a screw hole 22 correspondingly arranged on the threaded pin 2, so that the threaded pin 2 can be conveniently pulled out.
Due to the adoption of the technical scheme, the fastening device is suitable for fastening installation of compact machinery, meets the requirements of installation and disassembly of the whole structure in a narrow space, can ensure the tightness and effectively prevents loosening. Through the blind hole 31 arranged on the clamping part 3, the inserted rod can be inserted into the blind hole 31 for fastening, and the screw 1 can be screwed; screw holes 22 are correspondingly formed in the threaded pins 2, bolts can be screwed into the screw holes 22 when the threaded pins 2 are disassembled, and the pin pulling operation during disassembly is facilitated.
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 (5)
1. The screw rod pin device is characterized by comprising a screw rod (1) and a threaded pin (2), wherein the threaded pin (2) is provided with a threaded through hole (21), the threaded pin (2) is connected to the screw rod (1) through the threaded through hole (21), and threaded holes (22) are correspondingly formed in the threaded pin (2) positioned at two sides of the threaded through hole (21); the end face of the screw rod (1) is integrally formed with a clamping part (3), and a blind hole (31) is formed in the clamping surface of the clamping part (3) along the radial direction.
2. Screw pin device according to claim 1, characterized in that a retaining strip (4) is arranged in the blind hole (31) corresponding to the bearing seat mounting end face of the adjacent screw (1), the retaining strip (4) is an L-shaped rod body, one end of the retaining strip (4) is arranged in the blind hole (31), and the other end is bent towards the bearing seat mounting end face of the adjacent screw (1) and welded and fixed.
3. Screw pin device according to claim 1 or 2, characterized in that the blind holes (31) are provided in a plurality, the blind holes (31) being evenly distributed on the clamping surface of the clamping part (3).
4. Screw pin device according to claim 1, characterized in that the clamping part (3) is of cylindrical or prismatic structure.
5. Screw pin device according to claim 1, characterized in that the clamping part (3) has a size smaller than the metric size of the corresponding nut of the screw (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320363627.8U CN219529516U (en) | 2023-02-28 | 2023-02-28 | Screw pin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320363627.8U CN219529516U (en) | 2023-02-28 | 2023-02-28 | Screw pin device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529516U true CN219529516U (en) | 2023-08-15 |
Family
ID=87631762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320363627.8U Active CN219529516U (en) | 2023-02-28 | 2023-02-28 | Screw pin device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529516U (en) |
-
2023
- 2023-02-28 CN CN202320363627.8U patent/CN219529516U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |