CN219975097U - Slotted self-tapping screw sleeve - Google Patents
Slotted self-tapping screw sleeve Download PDFInfo
- Publication number
- CN219975097U CN219975097U CN202320741137.7U CN202320741137U CN219975097U CN 219975097 U CN219975097 U CN 219975097U CN 202320741137 U CN202320741137 U CN 202320741137U CN 219975097 U CN219975097 U CN 219975097U
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- Prior art keywords
- self
- tapping
- sleeve body
- screw sleeve
- tapping screw
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 139
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 21
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
The utility model discloses a slotted self-tapping screw sleeve, which comprises a self-tapping screw sleeve body, wherein the top of the self-tapping screw sleeve body is designed into a conical inclined plane structure; the outer wall of the self-tapping screw sleeve body is provided with external threads, and the inner wall of the self-tapping screw sleeve body is provided with internal threads; the periphery at self-tapping swivel nut body top has been seted up a plurality of chute mouth, a plurality of chute mouth is at the periphery evenly distributed at self-tapping swivel nut body top, a plurality of one side of chute mouth is the fillet, and the opposite side is the anti-reverse barb. According to the self-tapping sleeve, the plurality of uniformly distributed anti-reversion barbs are arranged in the screwing-out direction of the self-tapping sleeve body, the top of the self-tapping sleeve body can be slowly unfolded after the bolts are screwed in, so that the combination of the top end of the self-tapping sleeve body and the inner wall of the bottom hole is tighter, the plurality of uniformly distributed anti-reversion barbs can increase the friction force between the self-tapping sleeve body and the inner wall of the bottom hole, and the bolts can not easily drive the self-tapping sleeve body to screw out of the bottom hole of a workpiece in the repeated disassembling process.
Description
Technical Field
The utility model relates to the technical field of self-tapping screw sleeves, in particular to a slotted self-tapping screw sleeve.
Background
The self-tapping screw sleeve is also called as a self-tapping screw sleeve, is a novel fastener for reinforcing the screw strength, is internally and externally provided with threads, is embedded into softer materials such as plastic, aluminum cast iron, copper and the like, can form an internal screw hole with higher strength, and can repair the damaged internal screw; the self-tapping sleeve is installed without tapping in advance, the self-tapping sleeve can be directly screwed into a specific hole reserved in a base material by using an installation tool, the same screw as the original screw can be used for the female screw with broken teeth, the self-tapping sleeve is economical and attractive, and the screw strength of a new product can be increased.
At present, a plurality of different types of self-tapping screw sleeves are available on the market, chinese utility model with patent number ZL202122335848.8 discloses a novel grooved self-tapping screw sleeve, which comprises a self-tapping screw sleeve body, wherein two notches are symmetrically formed in the outer wall of the self-tapping screw sleeve body, the self-tapping screw sleeve body comprises a plate layer, an outer coating and an inner coating, the outer coating is adhered to the outer surface of the plate layer, the inner coating is adhered to the inner surface of the plate layer, and the outer coating comprises an anti-corrosion layer, a wear-resistant layer and an outer coating. The self-tapping screw sleeve is made of different composite materials and is galvanized, and although the galvanized plate layer can be protected from corrosion, the high-strength application can be met, in the actual use process, the self-tapping screw sleeve is locked and fixed with a workpiece only by virtue of a self-threaded structure and does not have any anti-disengaging structure, so that when the internal threads of the bolt and the self-tapping screw sleeve are screwed tightly, the self-tapping screw sleeve is easily and synchronously taken out of a bottom hole of the workpiece when the subsequent bolt needs to be disassembled, and further the subsequent normal use is influenced.
It is therefore desirable to provide a slotted self-tapping insert that solves the above-mentioned problems.
Disclosure of Invention
The utility model aims to solve the technical problem that the existing self-tapping screw sleeve is locked and fixed with a workpiece only by virtue of a self-threaded structure and does not have any anti-disengaging structure, so that when a bolt is screwed with the internal thread of the self-tapping screw sleeve too tightly, the self-tapping screw sleeve is easily synchronously taken out of a bottom hole of the workpiece when the subsequent bolt needs to be disassembled, and further the subsequent normal use is influenced.
In order to solve the technical problems, the utility model adopts a technical scheme that: the grooved self-tapping screw sleeve comprises a self-tapping screw sleeve body, wherein external threads are arranged on the outer wall of the self-tapping screw sleeve body, internal threads are arranged on the inner wall of the self-tapping screw sleeve body, and the internal threads on the inner wall of the self-tapping screw sleeve body can facilitate screwing of bolts;
the periphery at self-tapping swivel nut body top has seted up a plurality of chute mouth, a plurality of one side of chute mouth is the fillet, and the opposite side is the anti-reverse barb.
The utility model is further provided with: the self-tapping screw sleeve body is made of stainless steel.
Through the technical scheme, the self-tapping screw sleeve body made of stainless steel is high in overall strength, is not easy to damage or break, has functions of wear resistance, corrosion resistance and the like, and is longer in service life in the actual use process.
The utility model is further provided with: the top of the self-tapping screw sleeve body is designed into a conical inclined plane structure.
Through the technical scheme, the self-tapping screw sleeve body with the top of the conical inclined surface structural design is more convenient to screw into the bottom hole of the workpiece through the tool, after the self-tapping screw sleeve body is completely screwed into the bottom hole, the bolt to be connected can be screwed into the inner side of the self-tapping screw sleeve body, and after the bolt is screwed into the position of the innermost bottom, the screwing end of the bolt can slowly prop open the top of the self-tapping screw sleeve body, so that the combination of the top end of the self-tapping screw sleeve body and the inner wall of the bottom hole is tighter.
The utility model is further provided with: the oblique notches are all formed by stamping.
Through above-mentioned technical scheme, both convenient quick processing also can guarantee a plurality of chute mouth notched planarization and aesthetic property simultaneously, also smooth more when follow-up self-tapping swivel nut body needs to screw in the bottom hole, can not take place the condition of card to dun.
The utility model is further provided with: the oblique notches are uniformly distributed on the periphery of the top of the self-tapping screw sleeve body.
Through the technical scheme, the plurality of oblique notches are uniformly distributed on the periphery of the top of the self-tapping screw sleeve body, so that the top of the self-tapping screw sleeve body is stressed more uniformly during screwing, excessive deformation can not occur, and the self-tapping screw sleeve body is smoother in the screwing process.
The utility model is further provided with: the depth of the plurality of bevel notches is less than one third of the height of the self-tapping sleeve body.
Through the technical scheme, the top end of the self-tapping screw sleeve body can be smoother in the screwing process, meanwhile, the integral strength of the self-tapping screw sleeve body can be guaranteed, and the self-tapping screw sleeve body cannot be broken in the repeated screwing or dismantling process.
The utility model is further provided with: the round corners are arranged in the screwing direction of the self-tapping screw sleeve body.
Through the technical scheme, the top is the conical inclined surface structure and is matched with the plurality of fillets in the top screwing direction, so that the self-tapping screw sleeve body is smoother in the screwing process, and the self-tapping screw sleeve body and a workpiece bottom hole are more convenient to combine.
The utility model is further provided with: the reverse-preventing barbs are arranged in the unscrewing direction of the self-tapping screw sleeve body.
Through above-mentioned technical scheme, through set up a plurality of evenly distributed's anti-reverse barb at the direction of screwing out of self-tapping swivel nut body, after the screw-in end of bolt is twisted in the self-tapping swivel nut body, the top of bolt can slowly prop open the self-tapping swivel nut body for the top of self-tapping swivel nut body is inseparabler with the combination of bottom hole inner wall, and a plurality of evenly distributed's anti-reverse barb also can block the inside wall in work piece bottom hole, and increase the frictional force with between the bottom hole inside wall, make the bolt also can not drive the self-tapping swivel nut body easily and unscrew work piece bottom hole at the in-process of dismantling repeatedly.
The beneficial effects of the utility model are as follows:
according to the self-tapping sleeve, the plurality of uniformly distributed anti-reversion barbs are arranged in the screwing-out direction of the self-tapping sleeve body, the top of the self-tapping sleeve body can be slowly unfolded after the bolts are screwed in, so that the combination of the top end of the self-tapping sleeve body and the inner wall of the bottom hole is tighter, the plurality of uniformly distributed anti-reversion barbs can increase the friction force between the self-tapping sleeve body and the inner wall of the bottom hole, and the bolts can not easily drive the self-tapping sleeve body to screw out of the bottom hole of a workpiece in the repeated disassembling process.
Drawings
FIG. 1 is a first view angle block diagram of the present utility model;
FIG. 2 is a second view angle block diagram of the present utility model;
FIG. 3 is a front view of the present utility model;
fig. 4 is a cross-sectional view taken along A-A in fig. 3.
In the figure: 1. a self-tapping thread sleeve body; 2. an external thread; 3. an internal thread; 4. an oblique notch; 5. round corners; 6. an anti-reverse barb.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
Referring to fig. 1-4, a slotted self-tapping screw sleeve includes a self-tapping screw sleeve body 1, wherein the self-tapping screw sleeve body 1 is made of stainless steel, and the self-tapping screw sleeve body 1 made of stainless steel has high overall strength, is not easy to damage or break, has functions of wear resistance, corrosion resistance and the like, and has longer service life in the actual use process; the top of the self-tapping screw sleeve body 1 is in a conical inclined plane structure design, the self-tapping screw sleeve body 1 with the top in the conical inclined plane structure design is more convenient to screw into a bottom hole of a workpiece through a tool, when the self-tapping screw sleeve body 1 is completely screwed into the bottom hole, a bolt to be connected can be screwed into the inner side of the self-tapping screw sleeve body 1, and when the bolt is screwed into the innermost bottom position, the screwing end of the bolt can slowly prop up the top of the self-tapping screw sleeve body 1, so that the top of the self-tapping screw sleeve body 1 is tightly combined with the inner wall of the bottom hole;
as shown in fig. 4, the outer wall of the self-tapping screw sleeve body 1 is provided with an external thread 2, the inner wall of the self-tapping screw sleeve body 1 is provided with an internal thread 3, and the internal thread 3 of the inner wall of the self-tapping screw sleeve body 1 can facilitate the screwing of a bolt;
as shown in fig. 2, a plurality of bevel slots 4 are formed on the peripheral side of the top of the self-tapping sleeve body 1, and the plurality of bevel slots 4 are formed by stamping, so that the self-tapping sleeve is convenient and quick to process, meanwhile, the smoothness and the attractiveness of the cuts of the plurality of bevel slots 4 can be ensured, the self-tapping sleeve body 1 is smoother when being screwed into a bottom hole, and the situation of jamming can not occur; the plurality of bevel slots 4 are uniformly distributed on the peripheral side of the top of the self-tapping screw sleeve body 1, and the plurality of bevel slots 4 are uniformly distributed on the peripheral side of the top of the self-tapping screw sleeve body 1, so that the top of the self-tapping screw sleeve body 1 is stressed more uniformly during screwing, excessive deformation can not occur, and the self-tapping screw sleeve body 1 is smoother in the screwing process; the depth of the inclined grooves 4 is smaller than one third of the height of the self-tapping screw sleeve body 1, so that the top end of the self-tapping screw sleeve body 1 can be smoother in the screwing process, meanwhile, the integral strength of the self-tapping screw sleeve body 1 can be ensured, and the self-tapping screw sleeve body 1 cannot be broken and damaged in the repeated screwing or dismantling process;
as shown in fig. 3, one side of each of the plurality of bevel slots 4 is a round angle 5, the other side is an anti-reversion barb 6, the plurality of round angles 5 are all arranged in the screwing direction of the self-tapping screw sleeve body 1, and the top is in a conical inclined surface structure and matched with the plurality of round angles 5 in the screwing direction of the top, so that the self-tapping screw sleeve body 1 is smoother in the screwing process, and the self-tapping screw sleeve body 1 is more convenient to combine with a bottom hole of a workpiece;
as shown in fig. 1, a plurality of anti-reverse barbs 6 are all arranged in the screwing-out direction of the self-tapping screw sleeve body 1, and through arranging a plurality of uniformly distributed anti-reverse barbs 6 in the screwing-out direction of the self-tapping screw sleeve body 1, after the screwing-in end of the bolt is screwed into the self-tapping screw sleeve body 1, the top of the self-tapping screw sleeve body 1 can be slowly spread out by the bolt, so that the combination of the top end of the self-tapping screw sleeve body 1 and the inner wall of the bottom hole is tighter, the plurality of uniformly distributed anti-reverse barbs 6 can be clamped on the inner wall of the bottom hole of a workpiece, and the friction force between the anti-reverse barbs and the inner wall of the bottom hole is increased, so that the bolt can not easily drive the self-tapping screw sleeve body 1 to screw out of the bottom hole of the workpiece in the repeated disassembly process.
When the self-tapping sleeve is used, the top end of the self-tapping sleeve body 1 is aligned with a bottom hole on a workpiece, then the self-tapping sleeve body 1 is screwed into the bottom hole through a special tool, so that tapping of the bottom hole and combination with the bottom hole are realized, the top is in a conical inclined surface structure and matched with a plurality of fillets 5 in the top screwing direction, the self-tapping sleeve body 1 is enabled to be smoother in the screwing process, combination of the self-tapping sleeve body 1 and the bottom hole of the workpiece is facilitated, in the subsequent use process, a bolt to be connected can be screwed into the inner wall of the self-tapping sleeve body 1, after the screwing end of the bolt is screwed into the self-tapping sleeve body 1, the bolt can slowly prop open the top of the self-tapping sleeve body 1, the combination of the top end of the self-tapping sleeve body 1 and the inner wall of the bottom hole is enabled to be tighter, a plurality of evenly distributed reverse barbs 6 can be clamped on the inner side wall of the bottom hole of the workpiece, friction force between the self-tapping sleeve body 1 and the inner side wall of the bottom hole is increased, the bolt can not easily drive the self-tapping sleeve body 1 to screw out of the bottom hole of the workpiece in the process of the workpiece in the repeated disassembling process, and the connection stability between the self-tapping sleeve body 1 and the workpiece and the bottom hole is ensured.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (8)
1. The utility model provides a fluting formula self-tapping thread bush, includes self-tapping thread bush body (1), its characterized in that: the outer wall of the self-tapping screw sleeve body (1) is provided with an external thread (2), and the inner wall of the self-tapping screw sleeve body (1) is provided with an internal thread (3);
a plurality of bevel notches (4) are formed in the peripheral side of the top of the self-tapping screw sleeve body (1), one sides of the bevel notches (4) are round corners (5), and the other sides of the bevel notches are anti-reversion barbs (6).
2. A slotted self-tapping insert as set forth in claim 1, wherein: the self-tapping screw sleeve body (1) is made of stainless steel.
3. A slotted self-tapping insert as set forth in claim 2, wherein: the top of the self-tapping screw sleeve body (1) is designed into a conical inclined plane structure.
4. A slotted self-tapping insert as set forth in claim 1, wherein: the plurality of bevel notches (4) are all formed by stamping.
5. The slotted self-tapping sleeve as set forth in claim 4, wherein: the oblique notches (4) are uniformly distributed on the periphery of the top of the self-tapping screw sleeve body (1).
6. A slotted self-tapping insert as set forth in claim 1, wherein: the depth of the plurality of bevel grooves (4) is less than one third of the height of the self-tapping screw sleeve body (1).
7. A slotted self-tapping insert as set forth in claim 1, wherein: the round corners (5) are arranged in the screwing direction of the self-tapping screw sleeve body (1).
8. A slotted self-tapping insert as set forth in claim 1, wherein: the anti-reversion barbs (6) are arranged in the unscrewing direction of the self-tapping screw sleeve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320741137.7U CN219975097U (en) | 2023-04-06 | 2023-04-06 | Slotted self-tapping screw sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320741137.7U CN219975097U (en) | 2023-04-06 | 2023-04-06 | Slotted self-tapping screw sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219975097U true CN219975097U (en) | 2023-11-07 |
Family
ID=88579728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320741137.7U Active CN219975097U (en) | 2023-04-06 | 2023-04-06 | Slotted self-tapping screw sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219975097U (en) |
-
2023
- 2023-04-06 CN CN202320741137.7U patent/CN219975097U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |