CN222351111U - Internal expansion fixed rivet - Google Patents
Internal expansion fixed rivet Download PDFInfo
- Publication number
- CN222351111U CN222351111U CN202421220755.8U CN202421220755U CN222351111U CN 222351111 U CN222351111 U CN 222351111U CN 202421220755 U CN202421220755 U CN 202421220755U CN 222351111 U CN222351111 U CN 222351111U
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- China
- Prior art keywords
- expansion
- rod body
- block
- base
- rod
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Links
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Insertion Pins And Rivets (AREA)
Abstract
本实用新型涉及铆钉技术领域，尤其涉及一种内膨胀固定式铆钉，包括端盖，所述端盖下端转动连接有圆板，所述端盖内部贯穿滑动连接有杆体，所述圆板与杆体贯穿螺纹转动连接，所述杆体侧壁设置有环槽，所述杆体端部转动连接有锁紧块，所述锁紧块下端侧壁倾斜设置；底座，所述底座上端环形阵列分布设置有多个膨胀块。操作人员将锁紧块、膨胀块与底座滑动至事先开设的钻孔内部，手动转动凸块使得圆板转动，杆体带动锁紧块滑动，将多个膨胀块撑开使得膨胀块形变，从而将物件固定于指定位置，膨胀块完全形变后，杆体由环槽处断开，将多余的杆体部分去除，从而便于对铆钉进行安装，同时无需使用其余的工具对铆钉进行安装。
The utility model relates to the technical field of rivets, and in particular to an internal expansion fixed rivet, comprising an end cap, a circular plate rotatably connected to the lower end of the end cap, a rod body slidably connected to the inside of the end cap, the circular plate and the rod body rotatably connected through a thread, a ring groove is provided on the side wall of the rod body, a locking block is rotatably connected to the end of the rod body, and the lower side wall of the locking block is inclined; a base, a plurality of expansion blocks are distributed in a circular array on the upper end of the base. The operator slides the locking block, the expansion block and the base into the pre-opened drilled hole, manually rotates the convex block to rotate the circular plate, and the rod body drives the locking block to slide, and the plurality of expansion blocks are stretched to deform the expansion blocks, thereby fixing the object at the specified position. After the expansion block is completely deformed, the rod body is disconnected from the ring groove, and the excess rod body part is removed, thereby facilitating the installation of the rivet, and no other tools are needed to install the rivet.
Description
Technical Field
The utility model relates to the technical field of rivets, in particular to an internal expansion fixed rivet.
Background
An internal expansion fixed rivet, also called an expansion rivet or an expansion nail, is a special fastener, and the principle of the internal expansion fixed rivet is mainly to fix a base material by utilizing the plastic deformation and mechanical principle of a metal material. The expansion rivet has wide application fields, such as automobile manufacturing, building industry, machinery manufacturing, aviation field and the like. In automotive construction, expansion rivets may be used to reinforce and secure sheet metal components such as wheel arches, door panels, and the like to enhance their structural strength. In the construction industry, expansion rivets are commonly used for the connection and fixation of steel structures, such as for the installation of aluminum veneer curtain walls, roofing elements, etc. In mechanical fabrication, expansion rivets may be used in the assembly of devices to enhance the stability and reliability of their structure. In the field of aviation, expansion rivets are also widely used as a reliable connection.
The existing metal rivet is easy to loosen in a drilled hole due to long-term operation in the use process, so that the rivet connection is not stable enough, the service life is extremely short in a shaking environment, and the rivet rod is easy to fall back, so that the expansion pipe cannot prop against the inner wall of the hole.
Disclosure of utility model
The utility model aims to provide an internal expansion fixed rivet, which has the advantages of facilitating rivet installation and improving the use stability of the rivet through the structure, so as to solve the problems of inconvenient rivet installation and poor use stability of the rivet in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The inner expansion fixed rivet comprises an end cover, a base, a plurality of expansion blocks, a base and a plurality of locking blocks, wherein the lower end of the end cover is rotationally connected with a circular plate, a rod body is connected inside the end cover in a penetrating and sliding mode, the circular plate is rotationally connected with the rod body in a penetrating and threaded mode, annular grooves are formed in the side walls of the rod body, the end portions of the rod body are rotationally connected with the locking blocks, the side walls of the lower ends of the locking blocks are obliquely arranged, the base is arranged at the upper end of the end cover, and the annular arrays on the base are distributed and provided with the expansion blocks which are matched with the locking blocks.
Preferably, the upper end of the end cover is fixedly connected with a protection pad, the protection pad is made of rubber, and a plurality of holes are formed in the annular array on the protection pad.
Preferably, the side wall of the circular plate is symmetrically and fixedly connected with two convex blocks, and the side walls of the two convex blocks are respectively sleeved with a rubber protective sleeve.
Preferably, the base is internally provided with a notch in a penetrating way, the notch is connected with the rod body in a penetrating and sliding way, and the side wall of the notch is provided with a clamping groove.
Preferably, the locking piece lower extreme fixedly connected with cylinder, the cylinder is inside to run through and is provided with logical groove, the body of rod runs through rotation with logical groove and is connected, cylinder and notch sliding connection.
Preferably, the side wall of the column body is provided with a clamping block, the clamping block is matched with the clamping groove, and the clamping block and the clamping groove are all annular.
Compared with the prior art, the utility model has the advantages that:
1. The operating personnel slides the locking piece, expansion block and base to the drilling inside of seting up in advance, protection pad lateral wall and article lateral wall laminating simultaneously, manual rotation lug makes the plectane rotate, make body of rod and end cover run through the slip, the body of rod drives the locking piece simultaneously and slides, prop up a plurality of expansion blocks and make expansion block deformation, thereby be fixed in the assigned position with the article, when the locking piece slides certain distance, after expansion block deformation completely simultaneously, the body of rod is broken off by annular department, get rid of unnecessary body of rod part, thereby be convenient for install the rivet, need not to use other instrument to install the rivet simultaneously.
2. After the locking block is pulled by the rod body to slide a certain distance, the cylinder slides to the inside of the notch, the cylinder slides to the inside in-process of the notch, the clamping block contacts with the side wall of the notch to deform, when the clamping block contacts with the clamping groove, the clamping block automatically recovers through the elasticity of the clamping block, the side wall of the clamping block is attached to the inner wall of the clamping groove, the locking block is limited, the locking block is prevented from loosening due to vibration, the expansion block cannot be locked, and the use stability of the rivet is improved.
Drawings
Fig. 1 is a schematic top view of an external structure of an internal expansion set rivet according to the present utility model.
Fig. 2 is a schematic bottom external structure of an internal expansion set rivet according to the present utility model.
FIG. 3 is a schematic side cross-sectional view of an internally expanding set rivet according to the present utility model.
FIG. 4 is a schematic front cross-sectional view of an internally expanding set rivet according to the present utility model.
In the figure, the end cover 1, the protection pad 2, the circular plate 3, the convex block 4, the rod body 5, the annular groove 6, the base 7, the expansion block 8, the notch 9, the clamping groove 10, the locking block 11, the cylinder 12 and the clamping block 13 are arranged.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, an internal expansion fixed rivet comprises an end cover 1, wherein a circular plate 3 is rotationally connected to the lower end of the end cover 1, a rod body 5 is rotationally connected to the inner portion of the end cover 1 in a penetrating sliding manner, the circular plate 3 is rotationally connected with the rod body 5 in a penetrating manner, a ring groove 6 is formed in the side wall of the rod body 5, a locking block 11 is rotationally connected to the end portion of the rod body 5, the side wall of the lower end of the locking block 11 is obliquely arranged, a base 7 is arranged at the upper end of the end cover 1, a plurality of expansion blocks 8 are distributed on the upper end of the base 7 in an annular array manner, the expansion blocks 8 are matched with the locking block 11, an operator slides the locking block 11, the expansion blocks 8 and the base 7 into a drilled hole which is formed in advance, meanwhile, the side wall of the end cover 1 is attached to the side wall of an object, then the operator rotates the circular plate 3, the rod body 5 and the end cover 1 are in a penetrating manner, meanwhile, the rod body 5 drives the locking block 11 to slide, the expansion blocks 8 are propped open, the expansion blocks 8 are deformed, the object is fixed at a designated position, when the locking block 11 is not required to slide a certain distance, and the expansion blocks 8 are completely deformed, the rod body 5 is broken by the ring groove 6, and redundant rod body 5 is removed, so that the rest of the rod body 5 is convenient to install the rivet.
The end cover 1 upper end fixedly connected with protection pad 2, protection pad 2 adopt the rubber material, and protection pad 2 upper end ring shape array is provided with a plurality of holes, and when end cover 1 lateral wall and article lateral wall subsides, protection pad 2 protects the article lateral wall, avoids article surface to appear the scar.
Two lugs 4 are symmetrically and fixedly connected to the side wall of the circular plate 3, rubber protective sleeves are sleeved on the side walls of the two lugs 4, the circular plate 3 is rotated by manually rotating the lugs 4, and hands of operators are protected through the protective sleeves.
The base 7 is inside to run through and is provided with notch 9, and notch 9 runs through sliding connection with body of rod 5, and notch 9 lateral wall is provided with draw-in groove 10, and notch 9 sets up to circular.
The locking piece 11 lower extreme fixedly connected with cylinder 12, the inside running through of cylinder 12 is provided with logical groove, and body of rod 5 runs through rotary connection with logical groove, cylinder 12 and notch 9 sliding connection, after body of rod 5 pulling locking piece 11 slides certain distance, cylinder 12 slides to the notch 9 inside.
The cylinder 12 lateral wall is provided with fixture block 13, fixture block 13 cooperatees with draw-in groove 10, fixture block 13 and draw-in groove 10 all set up to the annular, fixture block 13 adopts the elastic block, the cylinder 12 slides to the inside in-process of notch 9, fixture block 13 takes place deformation with notch 9 lateral wall contact, when fixture block 13 and draw-in groove 10 contact, fixture block 13 is automatic resumes through self elasticity for fixture block 13 lateral wall and the laminating of draw-in groove 10 inner wall, thereby carry out spacingly to latch segment 11, avoid latch segment 11 to be at becoming flexible, can't lock expansion block 8.
According to the utility model, an operator slides the locking block 11, the expansion blocks 8 and the base 7 into a pre-drilled hole, meanwhile, the side wall of the protection pad 2 is attached to the side wall of an object, the circular plate 3 is rotated by manually rotating the protruding block 4, the rod body 5 and the end cover 1 penetrate and slide, meanwhile, the rod body 5 drives the locking block 11 to slide, the expansion blocks 8 are spread to deform the expansion blocks 8, so that the object is fixed at a designated position, when the locking block 11 slides for a certain distance, and the expansion blocks 8 are completely deformed, the rod body 5 is disconnected from the ring groove 6, and the redundant rod body 5 is partially removed, so that the rivet is convenient to install.
After the rod body 5 pulls the locking block 11 to slide a certain distance, the cylinder 12 slides to the inside of the notch 9, the cylinder 12 slides to the inside in-process of the notch 9, the fixture block 13 deforms with the contact of the side wall of the notch 9, when the fixture block 13 contacts with the clamping groove 10, the fixture block 13 automatically restores through the elasticity of the self, the side wall of the fixture block 13 is attached to the inner wall of the clamping groove 10, and therefore the locking block 11 is limited.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. An internally expanding fixed rivet, characterized by comprising
The end cover (1), the lower extreme of end cover (1) rotates and is connected with plectane (3), inside sliding connection that runs through of end cover (1) has body of rod (5), plectane (3) run through threaded rotation with body of rod (5) and be connected, body of rod (5) lateral wall is provided with annular (6), body of rod (5) tip rotates and is connected with latch segment (11), latch segment (11) lower extreme lateral wall slope sets up;
The base (7), base (7) are located end cover (1) upper end, base (7) upper end ring annular array distributes and is provided with a plurality of expansion blocks (8), expansion blocks (8) cooperate with latch segment (11).
2. The internal expansion fixed rivet according to claim 1, wherein the upper end of the end cover (1) is fixedly connected with a protection pad (2), the protection pad (2) is made of rubber, and a plurality of holes are formed in an annular array on the upper end of the protection pad (2).
3. An internal expansion fixed rivet according to claim 1, characterized in that the side walls of the circular plate (3) are symmetrically and fixedly connected with two protruding blocks (4), and the side walls of the two protruding blocks (4) are respectively sleeved with a rubber protective sleeve.
4. An internally expanding fixed rivet according to claim 1, characterized in that the base (7) is internally provided with a slot (9) in a penetrating sliding connection with the shank (5), the slot (9) being provided with a clamping groove (10) on the side wall of the slot (9).
5. An internal expansion fixed rivet according to claim 1, characterized in that the lower end of the locking block (11) is fixedly connected with a column body (12), a through groove is formed in the column body (12) in a penetrating manner, the rod body (5) is connected with the through groove in a penetrating and rotating manner, and the column body (12) is connected with the notch (9) in a sliding manner.
6. The internally expanding fixed rivet according to claim 5, wherein a clamping block (13) is arranged on the side wall of the column body (12), the clamping block (13) is matched with the clamping groove (10), and the clamping block (13) and the clamping groove (10) are all annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421220755.8U CN222351111U (en) | 2024-05-31 | 2024-05-31 | Internal expansion fixed rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421220755.8U CN222351111U (en) | 2024-05-31 | 2024-05-31 | Internal expansion fixed rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222351111U true CN222351111U (en) | 2025-01-14 |
Family
ID=94205027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421220755.8U Active CN222351111U (en) | 2024-05-31 | 2024-05-31 | Internal expansion fixed rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222351111U (en) |
-
2024
- 2024-05-31 CN CN202421220755.8U patent/CN222351111U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |