CN220956383U - Fastener using internal tooth gaskets - Google Patents
Fastener using internal tooth gaskets Download PDFInfo
- Publication number
- CN220956383U CN220956383U CN202322524693.1U CN202322524693U CN220956383U CN 220956383 U CN220956383 U CN 220956383U CN 202322524693 U CN202322524693 U CN 202322524693U CN 220956383 U CN220956383 U CN 220956383U
- Authority
- CN
- China
- Prior art keywords
- internal tooth
- gasket
- screw
- fastener
- screw rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 210000001503 joint Anatomy 0.000 claims abstract description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000004411 aluminium Substances 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
A fastener using an internal tooth spacer includes a threaded shank and an internal tooth spacer. The internal tooth gaskets include washers, locking internal teeth. The gasket is of a circular ring structure, each locking internal tooth is characterized in that one end of each locking internal tooth is fixed on the inner ring of the gasket, the other end of each locking internal tooth extends towards the circle center of the gasket, and each locking internal tooth comprises an abutting end, an arc abutting joint and a guiding chamfer. Compared with the prior art, the utility model can avoid interference and abrasion by arranging the abutting end to form the internal teeth, and meanwhile, the abutting end is adopted to elastically deform the internal tooth gasket, so that the screw rod is loosened and cannot generate a gap with the gasket, thereby preventing abnormal sound or impact in vibration. And through setting up arc butt joint with the direction chamfer reduces striking and friction, reduces the impact to the screw thread, protection screw thread pole, especially screw thread pole that softer material such as aluminium made prevents the screw thread wearing and tearing.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a fastener using an internal tooth gasket.
Background
The bolt gasket is an anti-slip annular iron sheet and is arranged on a bolt, when the bolt is screwed down, the friction force between a nut and a device fixing piece can be increased, so that the bolt is prevented from loosening, the effect of protecting the bolt is achieved, but in the working process of the device, the gasket and the bolt are loosened due to long-term vibration, the anti-loosening effect of the gasket is weakened, and the bolt is easy to fall. In addition, the existing bolt gasket is of a complete annular structure, the bolt is required to pass through the bolt gasket when being additionally installed, then the bolt is screwed on the equipment fixing piece, the gasket is displaced after the bolt is loosened due to overlarge pore diameter of the gasket, the inner ring inevitably wears out threads when the pore diameter of the gasket is too small, and when the bolt is made of soft materials such as aluminum or aluminum alloy, friction on the threads can lead to damage of the bolt.
The play clearance adjusting device for the shaft and the bearing disclosed in the Chinese utility model CN201821701680.X comprises a circular gasket, wherein 4 to 6 internal teeth distributed in a circular ring shape are arranged in the gasket, and the internal teeth are uniformly distributed at intervals. The internal teeth are disposed obliquely with respect to the front or back of the pad. The assembly process comprises the steps of assembling the bearing, assembling the bearing on the bearing inner ring, fixing the bearing in the bearing sleeve through the bearing end cover, sleeving the gasket on the bearing in a clearance fit manner, arranging the gasket between the bearing and the bearing end cover, and attaching the inner teeth to the inner wall of the bearing end cover after bending outwards, wherein the outer diameter of the gasket is the same as that of the bearing outer ring.
The utility model can be also applied to bolts with gaskets by arranging the internal teeth in the gaskets, so that the problem of abrasion of the gaskets to the threads and the problem of looseness of the gaskets in the long-term use process are solved.
Disclosure of utility model
In view of the above, the present utility model provides a fastener using an internal tooth pad that can solve the above-described problems.
A fastener using an internal tooth pad includes a screw rod and an internal tooth pad sleeved on the screw rod. The internal tooth pad includes a washer as a main body, and a plurality of locking internal teeth provided on the washer. The gasket is of a circular ring structure, each locking internal tooth is characterized in that one end of each locking internal tooth is fixed on the inner ring of the gasket, the other end of each locking internal tooth extends towards the circle center of the gasket and comprises an abutting end, an arc-shaped abutting joint arranged on the abutting end and a guide chamfer arranged on an abutting end angle. The abutting end is a free end of the locking inner tooth, and the end of the free end is bent towards one side. The arc-shaped abutting joint is the most distal end of the abutting end. The guide chamfers are located at both corners of the abutment end.
Further, the screw thread rod comprises a screw rod, a circle of threads arranged on the screw rod, a screw arranged at one end of the screw rod, and a screw head arranged at the other end of the screw rod far away from the screw rod.
Further, the screw rod is made of aluminum or aluminum alloy, and the inner tooth gaskets are made of one of metal, cast iron or alloy.
Further, the diameter of the screw head is larger than that of the screw rod, the head shape of the screw head is one of a round head, an umbrella head and a hexagonal head, and the groove shape of the screw head is one of a straight groove and a cross groove.
Further, the radian of the arc-shaped abutting joint is consistent with the radian of the rod body of the screw rod.
Further, the washer is provided with three locking internal teeth.
Further, four locking internal teeth are arranged on the gasket.
Further, a circular hole is formed by the arc-shaped end portions of each of the locking internal teeth at the center of the locking internal teeth.
Compared with the prior art, the fastener using the internal tooth gaskets provided by the utility model has the advantages that the internal tooth gaskets are arranged, so that the friction force is increased when the screw rod is screwed down, and the loosening is prevented. And through setting up the butt end forms the internal tooth, can enough avoid the interference that probably takes place when gasket aperture and screw rod size disagree with the wearing and tearing to the screw thread when the installation, adopt simultaneously the butt end of buckling for the internal tooth gasket is in screw rod screw up in-process butt is in on the screw head, and take place elastic deformation, thereby make the screw rod takes place not hard up in long-term use, also can not produce the clearance with the gasket, thereby prevent to produce abnormal sound or striking in vibrations. And through setting up arc butt joint with the direction chamfer for when internal tooth gasket with the screw rod equipment, reduce striking and friction, reduce the impact to the screw thread, protection screw rod, especially screw rod that softer material such as aluminium was made prevents screw wear.
Drawings
Fig. 1 is a schematic view of a product construction of a fastener using an internal tooth spacer according to the present utility model.
Fig. 2 is an exploded view of the fastener of fig. 1 using an internal tooth spacer.
Fig. 3 is a schematic view of the structure of the internal tooth pad of the fastener using the internal tooth pad of fig. 1.
Detailed Description
Specific embodiments of the present utility model are described in further detail below. It should be understood that the description herein of the embodiments of the utility model is not intended to limit the scope of the utility model.
Fig. 1 to 3 are schematic structural views of a fastener using an internal tooth pad according to the present utility model. The fastener using the internal tooth pad includes a screw rod 10, and an internal tooth pad 20 fitted over the screw rod 10. It is contemplated that the fastener using the internal tooth shims may include other functional modules such as threads, nuts, etc., which are well known to those skilled in the art and will not be described in detail herein.
The screw rod 10 is made of aluminum or aluminum alloy, and comprises a screw rod 11, a circle of threads 12 arranged on the screw rod 11, a screw 13 arranged at one end of the screw rod 11, and a screw head 14 arranged at the other end of the screw rod 11 away from the screw 13. The screw 11 and the thread 12 are well known in the art, and will not be described in detail here. The screw 13 is provided with a chamfer so that a guiding effect is generated when the screw rod 10 is inserted into a nut or is fitted into the internal tooth pad 20, thereby facilitating the operation. The diameter of the screw head 14 is larger than that of the screw 11, and the head shape may be round head, umbrella head, hexagonal head, etc., and in this embodiment, a column head is used as an example, and the groove shape may be a common groove shape such as a straight groove, a cross groove, etc., which is not particularly limited herein.
The internal tooth pad 20 is made of metal, cast iron or alloy, and includes a washer 21 as a main body, and three or four locking internal teeth 22 provided on the washer 21. The gasket 21 is of a circular ring structure, and is sleeved on the screw rod 10, so that the gasket can increase the contact area, reduce the pressure, prevent loosening, and protect parts and screws.
Each of the locking internal teeth 22 is fixed at one end to an inner ring of the washer 21 and extends toward a center of the washer 21 at the other end, and includes an abutment end 221, an arc-shaped abutment 222 provided on the abutment end 221, and a pair of guide chamfers 223 provided on corners of the abutment end 221. The abutment end 221 is a free end of the locking inner tooth 22, and an end of the free end is bent towards an insertion direction of the screw rod 10, so that a tilted edge is formed at a center of the inner tooth spacer 20, a contact surface of the locking inner tooth 22 and the screw rod 10 is an inclined surface instead of a vertical contact of a common product on the market, so that abrasion of the locking inner tooth 22 to the screw thread 12 is reduced, and meanwhile, when the screw rod is locked, the abutment end 221 is elastically deformed towards a center of the locking inner tooth 22, so that elastic force is generated between the screw rod and the spacer, and even if the screw rod is loosened in long-term use, a gap is not generated between the spacer and the screw rod due to the existence of the elastic force. The arc-shaped abutting joint 222 is the most distal end of the abutting end 221, the arc-shaped abutting joint 222 has a certain radian which is concavely set inwards and is consistent with the radian of the rod body of the screw rod 11, so that the locking inner teeth 22 can be attached to the screw rod 11, correspondingly, in the center of the four locking inner teeth 22 adopted in the embodiment, a circular hole is formed by the arc-shaped end part of each locking inner tooth 22 together, so that the screw rod 10 can be inserted. The guide chamfer 223 is located at both corners of the abutment end 221 so that the thread rod 10 is not scratched by sharp corners when inserted into the locking internal tooth 22.
Compared with the prior art, the fastener using the internal tooth gaskets provided by the utility model has the advantages that the internal tooth gaskets 20 are arranged, so that the friction force is increased when the screw rod 10 is screwed down, and the loosening is prevented. And through setting up butt end 221 forms the internal tooth, can enough avoid the interference that the spacer aperture probably takes place when not consistent with the screw rod size, and to the wearing and tearing of screw thread when the installation, adopts simultaneously the butt end 221 of buckling for internal tooth spacer 20 screw rod 10 screw up the in-process is supported on the screw head 14, and takes place elastic deformation, thereby makes screw rod 10 has taken place not hard up in the long-term use, also can not produce the clearance with the spacer, thereby prevents to produce abnormal sound or striking in the vibrations. And by providing the arc-shaped abutting joint 222 and the guiding chamfer 223, when the internal tooth spacer 20 and the screw rod 10 are assembled, the impact and friction are reduced, the impact on the screw thread 12 is reduced, the screw rod 10, particularly the screw rod made of softer materials such as aluminum, is protected, and the screw thread wear is prevented.
The above is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model, and any modifications, equivalent substitutions or improvements within the spirit of the present utility model are intended to be covered by the claims of the present utility model.
Claims (8)
1. A fastener using internal tooth shims, characterized in that: the fastener using the internal tooth gasket comprises a screw tooth rod and an internal tooth gasket sleeved on the screw tooth rod, the internal tooth gasket comprises a gasket serving as a main body and a plurality of locking internal teeth arranged on the gasket, the gasket is of a circular ring structure, each locking internal tooth is characterized in that one end of each locking internal tooth is fixed on the internal ring of the gasket, the other end of each locking internal tooth extends towards the circle center of the gasket and comprises an abutting end, an arc-shaped abutting joint arranged on the abutting end and a guiding chamfer arranged on an abutting end angle, the abutting end is a free end of the locking internal tooth, the end of the free end bends towards one side, the arc-shaped abutting joint is the farthest end of the abutting end, and the guiding chamfer is positioned on two corners of the abutting end.
2. The fastener using an internal tooth spacer as defined in claim 1, wherein: the screw tooth rod comprises a screw rod, a circle of screw threads arranged on the screw rod, a screw arranged at one end of the screw rod and a screw head arranged at the other end of the screw rod far away from the screw rod.
3. The fastener using an internal tooth spacer as defined in claim 2, wherein: the screw rod is made of aluminum or aluminum alloy, and the inner tooth gasket is made of one of metal, cast iron or alloy.
4. The fastener using an internal tooth spacer as defined in claim 2, wherein: the diameter of the screw head is larger than that of the screw rod, the head shape of the screw head is one of a round head, an umbrella head and a hexagonal head, and the groove shape of the screw head is one of a straight groove and a cross groove.
5. The fastener using an internal tooth spacer as defined in claim 2, wherein: the radian of the arc-shaped butt joint is consistent with the radian of the rod body of the screw rod.
6. The fastener using an internal tooth spacer as defined in claim 1, wherein: three locking internal teeth are arranged on the gasket.
7. The fastener using an internal tooth spacer as defined in claim 1, wherein: four locking internal teeth are arranged on the gasket.
8. The fastener using an internal tooth spacer as defined in claim 1, wherein: a circular hole is formed by the arc-shaped end parts of each locking internal tooth at the center of the locking internal tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322524693.1U CN220956383U (en) | 2023-09-14 | 2023-09-14 | Fastener using internal tooth gaskets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322524693.1U CN220956383U (en) | 2023-09-14 | 2023-09-14 | Fastener using internal tooth gaskets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956383U true CN220956383U (en) | 2024-05-14 |
Family
ID=90975648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322524693.1U Active CN220956383U (en) | 2023-09-14 | 2023-09-14 | Fastener using internal tooth gaskets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956383U (en) |
-
2023
- 2023-09-14 CN CN202322524693.1U patent/CN220956383U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |