CN217002598U - Tungsten carbide fastener - Google Patents
Tungsten carbide fastener Download PDFInfo
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- CN217002598U CN217002598U CN202122967628.7U CN202122967628U CN217002598U CN 217002598 U CN217002598 U CN 217002598U CN 202122967628 U CN202122967628 U CN 202122967628U CN 217002598 U CN217002598 U CN 217002598U
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- tungsten carbide
- hole groove
- cap body
- connector
- fastener
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Abstract
The utility model discloses a tungsten carbide fastener, relates to the technical field of polycrystalline silicon production assemblies, and mainly aims to provide a tungsten carbide fastener which can directly contact polycrystalline silicon and improve the connection strength of the fastener. The main technical scheme of the utility model is as follows: a tungsten carbide fastener comprising: the helmet comprises a helmet body, a first handle, a second handle and a first handle, wherein one end of the helmet body is an arc surface, the other end of the helmet body is provided with a first hole groove, and the bottom of the first hole groove extends towards the direction of the arc surface; the body of rod, the body of rod include connector and screw rod, and the one end fixed connection of connector is in the screw rod, and the first hole groove is inserted to the other end to, connector fixed connection is in the cap body. The utility model is mainly used for fastening and connecting equipment.
Description
Technical Field
The utility model relates to the technical field of polycrystalline silicon production assemblies, in particular to a tungsten carbide fastener.
Background
In recent years, the polysilicon industry in China is developed at a high speed, the quality requirement of polysilicon is more and more strict, and the requirement on the material of relevant equipment for producing the polysilicon is particularly important. Tungsten carbide material or PU material are all used rather than the most material of contact each other in the current polycrystalline silicon production process, and in polycrystalline silicon finished product packaging process, the equipment that uses is more nonstandard equipment, and some connections, the fastener of equipment are stainless steel material, PU material or tungsten carbide material mostly. The stainless steel material has the defects that the stainless steel connecting piece cannot be in direct contact with polycrystalline silicon, metal pollution is high, the PU material is in direct contact with the polycrystalline silicon, abrasion is fast, PU is easy to cut into the polycrystalline silicon, and therefore quality problems are caused.
SUMMERY OF THE UTILITY MODEL
In view of this, embodiments of the present invention provide a tungsten carbide fastener, and mainly provide a tungsten carbide fastener that can directly contact polysilicon and can improve the connection strength of the fastener.
In order to achieve the purpose, the utility model mainly provides the following technical scheme:
an embodiment of the present invention provides a tungsten carbide fastener, including:
the helmet comprises a helmet body, a handle and a handle, wherein one end of the helmet body is a circular arc surface, the other end of the helmet body is provided with a first hole groove, and the bottom of the first hole groove extends towards the direction of the circular arc surface;
the body of rod, the body of rod includes connector and screw rod, the one end fixed connection of connector in the screw rod, the other end inserts first hole groove, and, connector fixed connection in the cap body.
Further, the first hole groove is rectangular or regular polygonal.
Furthermore, the cap body is provided with a first side surface, and a first fillet is arranged between the first side surface and the arc surface.
Further, a first gap is formed between the side face of the connecting body and the inner wall of the first hole groove.
Furthermore, the connecting body and the screw rod are of an integrally formed structure.
Furthermore, the cap body is made of tungsten carbide, and the rod body is made of stainless steel.
Further, the other end of the cap body is provided with a first end face, and the diameter of the first end face is larger than that of the screw.
Further, the center position of the first hole groove coincides with the center position of the first end surface.
Compared with the prior art, the utility model has the following technical effects:
in the technical scheme provided by the embodiment of the utility model, the cap body is used for supporting the rod body and is in mutual contact with the polycrystalline silicon, one end of the cap body is an arc surface, the other end of the cap body is provided with a first hole groove, and the bottom of the first hole groove extends towards the direction of the arc surface; the function of the body of rod is fastening and connecting other parts, the body of rod includes link and threaded spindle, one end of the link is fixedly connected to threaded spindle, another end inserts the first hole slot, and, the link is fixedly connected to the cap body, compared with prior art, most materials that contact each other in the polycrystalline silicon production process use tungsten carbide material or PU material, and in the polycrystalline silicon finished product packaging process, the apparatus used is mostly nonstandard equipment, some connections of the apparatus, fastener are stainless steel material, PU material or tungsten carbide material mostly, stainless steel material's disadvantage lies in, stainless steel material connecting piece can't contact with polycrystalline silicon directly, metal contamination is higher, and PU material and polycrystalline silicon direct contact, wear and tear is quicker, very easily bring PU into polycrystalline silicon, thus cause the quality problem, tungsten carbide material can be used as the fastener, but its fragility is bigger, very easily broken entering polycrystalline silicon brings the quality problem, among the technical scheme, through setting up the cap body into the tungsten carbide material, set up the body of rod into stainless steel, one end at the cap body sets up the arc surface, make the structure of the cap body more durable, it is difficult broken, then set up first hole groove at the other end of the cap body, make the connector insert first hole groove, then weld the connector and the cap body through vacuum welding's mode, make the cap body fixed with the connector, set up the screw rod on the connector, the screw rod can be connected and fasten other parts, thereby make the cap body can be directly and polycrystalline silicon contact each other, improve the production environment of producing polycrystalline silicon material, simultaneously can also improve the joint strength of tungsten carbide fastener, and then reach the connectivity that improves the tungsten carbide fastener and the technological effect of support nature.
Drawings
FIG. 1 is a schematic view of a tungsten carbide fastener according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a first cap according to an embodiment of the present invention;
fig. 3 is a schematic top view of a second cap according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples.
As shown in fig. 1 to 3, an embodiment of the present invention provides a tungsten carbide fastener including:
the helmet comprises a helmet body 1, wherein one end of the helmet body 1 is an arc surface 11, the other end of the helmet body 1 is provided with a first hole groove 12, and the bottom of the first hole groove 12 extends towards the direction of the arc surface 11;
the body of rod, the body of rod include connector 21 and screw rod 22, and the one end fixed connection of connector 21 is in screw rod 22, and the other end inserts first hole groove 12 to, connector 21 fixed connection is in cap body 1.
In the technical scheme provided by the embodiment of the utility model, the cap body 1 is used for supporting the rod body and is mutually contacted with polycrystalline silicon, one end of the cap body 1 is an arc surface 11, the other end of the cap body 1 is provided with a first hole groove 12, and the bottom of the first hole groove 12 extends towards the direction of the arc surface 11; the effect of the body of rod is fastening and connecting other parts, the body of rod includes connector 21 and screw rod 22, the one end fixed connection of connector 21 is in screw rod 22, the other end inserts first hole groove 12, and, connector 21 fixed connection is in the cap body 1, compared with the prior art, most material of contact each other all uses tungsten carbide material or PU material in the polycrystalline silicon production process, and in polycrystalline silicon finished product packaging process, the equipment that uses is mostly nonstandard equipment, some of equipment are connected, the fastener is mostly stainless steel material, PU material or tungsten carbide material, stainless steel material's shortcoming lies in, stainless steel material connecting piece can not with polycrystalline silicon direct contact, metal contamination is higher, and PU material and polycrystalline silicon direct contact, wearing and tearing are faster, very easily cut PU and bring into polycrystalline silicon, thereby arouse the quality problem, the tungsten carbide material can be used as the fastener, but the brittleness is large, and the polycrystalline silicon is easy to break to bring quality problems, in the technical scheme, the cap body 1 is made of tungsten carbide, the rod body is made of stainless steel, one end of the cap body 1 is provided with the arc surface 11, so that the cap body 1 has a firmer structure and is not easy to break, then, the other end of the cap body 1 is provided with a first hole groove 12, so that the connection body 21 can be inserted into the first hole groove 12, then the connecting body 21 and the cap body 1 are welded in a vacuum welding mode, so that the cap body 1 and the connecting body 21 are fixed, the screw rod 22 is arranged on the connecting body 21, and the screw rod 22 can be connected with and fastened with other components, so that the cap body 1 can be directly contacted with the polysilicon, the production environment for producing the polysilicon material is improved, meanwhile, the connection strength of the tungsten carbide fastener can be improved, and the technical effect of improving the connectivity and the support of the tungsten carbide fastener is achieved.
The cap body 1 is used for supporting the rod body and is in contact with polycrystalline silicon, one end of the cap body 1 is an arc surface 11, the other end of the cap body 1 is provided with a first hole groove 12, the bottom of the first hole groove 12 extends towards the direction of the arc surface 11, the cap body 1 is made of tungsten carbide material, the tungsten carbide material can be in direct contact with the polycrystalline silicon and cannot pollute the polycrystalline silicon, one end face of the cap body 1 is the arc surface 11, the arc surface 11 can have good supporting performance when contacting other components, meanwhile, the cap body 1 can be firmer, the risk of breakage of the cap body 1 is reduced, the cap body 1 can be of a cylindrical structure or an elliptic cylindrical structure, the other end of the cap body 1 is provided with a first hole groove 12, the bottom of the first hole groove 12 extends towards the direction of the arc surface 11, the first hole groove 12 is arranged at the center of the other end face of the cap body 1, the side face of the cap body 1 is provided with an extrusion side face, a worker can clamp the extrusion side face through a tool such as a wrench and the like, and then the cap body 1 is rotated, so that the technical effect of conveniently mounting and dismounting the tungsten carbide fastener is achieved, the other end of the cap body 1 is provided with a first end face 14, and the diameter of the first end face 14 is larger than that of the screw 22; the body of rod is used for fastening and connecting other parts, the body of rod includes the connector 21 and the screw rod 22, one end of the connector 21 is fixedly connected to the screw rod 22, the other end is inserted into the first hole groove 12, and, the connector 21 is fixedly connected to the cap body 1, the connector 21 and the screw rod 22 are made of stainless steel material, the shape of the connector 21 is the same as that of the first hole groove 12, so that the connector 21 can be completely placed into the first hole groove 12, the surface of the screw rod 22 has external threads, and other parts can be connected and fastened, the connector 21 and the screw rod 22 are of an integral structure, and the connecting line and the supporting strength of the body of rod can be improved, of course, the connector 21 and the screw rod 22 can also be connected in a welding manner, and welding or installation between the connector 21 and the cap body 1 can be facilitated, in the technical scheme, by setting the cap body 1 to be tungsten carbide material, the body of rod is set to be stainless steel material, set up arc surface 11 in the one end of the cap body 1, make the structure of the cap body 1 more durable, it is not fragile, then set up first hole groove 12 at the other end of the cap body 1, make connector 21 insert in first hole groove 12, then weld connector 21 and the cap body 1 through vacuum welding's mode, make the cap body 1 fixed with connector 21, set up screw rod 22 on connector 21, screw rod 22 can connect and fasten other parts, thereby make the cap body 1 can directly contact with polycrystalline silicon each other, improve the production environment of production polycrystalline silicon material, can also improve the joint strength of tungsten carbide fastener simultaneously, and then reach the connectivity that improves the tungsten carbide fastener and the technological effect of support nature.
Further, the shape of the first hole groove 12 is rectangular or regular polygonal. In this embodiment, the shape of the first hole 12 is further limited, the shape of the first hole 12 is rectangular or regular polygon, that is, the cross-sectional shape of the first hole 12 is rectangular or regular polygon, when the cross-sectional shape of the first hole 12 is rectangular, the effect of facilitating the processing of the cap body 1 can be achieved, the bottom of the first hole 12 is of a chamfer structure, on one hand, the processing of the cap body 1 can be facilitated, on the other hand, the supporting strength of the cap body 1 can be improved, when the cross-sectional shape of the first hole 12 is regular polygon, on the one hand, the processing is facilitated, on the other hand, the connector 21 can be prevented from rotating in the first hole 12, and therefore, the technical effect of improving the stability of the connector 21 is achieved.
Furthermore, the cap body 1 has a first side surface 13, and a first fillet is formed between the first side surface 13 and the arc surface 11. In this embodiment, first side 13 is located between the other end of the arc surface 11 and the cap body 1, has first fillet between first side 13 and the arc surface 11 for arc surface 11 passes through the fillet with first side 13 and passes through, can improve the support nature of the cap body 1 on the one hand, makes the cap body 1 can be more durable simultaneously, thereby reduces the broken risk of the cap body 1.
Further, a first gap is formed between the side surface of the connecting body 21 and the inner wall of the first hole groove 12. In this embodiment, the connecting body 21 is further defined, and a first gap is provided between the side surface of the connecting body 21 and the inner wall of the first hole groove 12, that is, a certain gap is provided between the connecting body 21 and the first hole groove 12, and the width of the first gap is 0.2mm, so as to facilitate the overhaul and the disassembly of the tungsten carbide fastener.
Further, the center position of the first hole groove 12 coincides with the center position of the first end surface 14. In this embodiment, the first hole 12 is further defined, and a center position of the first hole 12 coincides with a center position of the first end surface 14, that is, the first hole 12 is disposed at the center position of the first end surface 14, so that after the rod body is installed, an axis of the screw rod 22 is also located at the center position of the first end surface 14, thereby achieving a technical effect of facilitating the rotation and installation of the tungsten carbide fastener.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A tungsten carbide fastener, comprising:
the helmet comprises a helmet body, a first handle and a second handle, wherein one end of the helmet body is an arc surface, the other end of the helmet body is provided with a first hole groove, the bottom of the first hole groove extends towards the direction of the arc surface, and the helmet body is made of tungsten carbide;
the body of rod, the body of rod includes connector and screw rod, the one end fixed connection of connector in the screw rod, the other end inserts first hole groove, and, connector fixed connection in the cap body.
2. The tungsten carbide fastener of claim 1,
the first hole groove is rectangular or regular polygonal.
3. The tungsten carbide fastener of claim 1,
the cap body has a first side surface, and a first fillet is arranged between the first side surface and the arc surface.
4. A tungsten carbide fastener according to claim 2,
a first gap is formed between the side face of the connecting body and the inner wall of the first hole groove.
5. A tungsten carbide fastener according to claim 2,
the connecting body and the screw rod are of an integrally formed structure.
6. A tungsten carbide fastener according to any one of claims 1 to 5,
the rod body is made of stainless steel.
7. A tungsten carbide fastener according to claim 6,
the other end of the cap body is provided with a first end face, and the diameter of the first end face is larger than that of the screw.
8. A tungsten carbide fastener according to claim 7,
the center position of the first hole groove is overlapped with the center position of the first end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122967628.7U CN217002598U (en) | 2021-11-30 | 2021-11-30 | Tungsten carbide fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122967628.7U CN217002598U (en) | 2021-11-30 | 2021-11-30 | Tungsten carbide fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217002598U true CN217002598U (en) | 2022-07-19 |
Family
ID=82382060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122967628.7U Active CN217002598U (en) | 2021-11-30 | 2021-11-30 | Tungsten carbide fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217002598U (en) |
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2021
- 2021-11-30 CN CN202122967628.7U patent/CN217002598U/en active Active
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