CN210799651U - Unilateral bolt with two-piece type folding gasket - Google Patents
Unilateral bolt with two-piece type folding gasket Download PDFInfo
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- CN210799651U CN210799651U CN201920611385.3U CN201920611385U CN210799651U CN 210799651 U CN210799651 U CN 210799651U CN 201920611385 U CN201920611385 U CN 201920611385U CN 210799651 U CN210799651 U CN 210799651U
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- packing ring
- screw rod
- ring
- bolt
- washer
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Abstract
The utility model discloses a unilateral bolt with two formula folding washers. Including screw rod (1) that has the one end nut, the key is that the cover is equipped with two formula folding packing ring (2) on screw rod (1), whole packing ring (3) and with screw-thread fit's nut (4) of screw rod (1), the end face of screw rod (1) is equipped with one grafting connection structure (6), the surface of foretell two formula folding packing ring (2) and whole packing ring (3) is equipped with relative cyclic annular convex part respectively, two formula folding packing ring (2) constitute the ring shape packing ring by two semicircle gaskets, a surface of ring shape packing ring is equipped with connects and can makes ring shape packing ring inseparable connection flexure strip (5), connect flexure strip (5) and ring shape packing ring's surface coplanar. The utility model discloses simple structure and very reliable, the installation is quick, has the suggestion warning that the abnormal conditions appears to the unilateral bolt at important fastening position.
Description
The technical field is as follows:
the utility model relates to a connecting fastener that machinery or framework engineering field used especially relates to a unilateral bolt of being applied to special component like box or large-scale body.
Background art:
the connecting fastener such as a bolt is a connecting piece which is widely used, the using amount is huge, a gasket or a washer is a necessary accessory of the bolt, the common washer is of a ring structure with a through hole in the center, the outer diameter of the washer is larger than the connecting hole of the member to be connected, the bolt passes through the connecting hole of the member to be connected, the washer sleeved on the bolt is positioned on one side of the member to be connected, a nut matched with a screw rod of the bolt is positioned on the other side of the member to be connected, and the member to be connected can be fastened by screwing the nut. However, if the members to be connected are box-type structures or hollow cylindrical structures such as large steel pipes or large special-shaped members, the fastening bolts in the prior art are inconvenient to use and even cannot be used practically because the connecting holes through which the circular ring gaskets cannot pass enter the closed space, so that a single-side bolt which can be used for a sealed space or a semi-sealed space, such as a four-section-structured variable-diameter gasket, can pass through the connecting holes of the members to be connected and can be matched with the bolts to form a single-side bolt. However, the gaskets with four-section structures are often separated from each other when deformed or in use, so that the gaskets with four-section structures are wasted and resources are wasted, or the gaskets are difficult to restore to a complete unfolded state after being deformed, and the dislocation problem often occurs among the sections, so that the friction force or the due performance and function of the gaskets are influenced. Therefore, the problem of the defects of the existing unilateral bolt is still an urgent problem to be solved.
The invention content is as follows:
the invention aims to disclose a safe, reliable and convenient to use unilateral bolt.
Realize the utility model discloses a technical solution as follows: including the screw rod that has the one end nut, the key is that the cover is equipped with two formula folding packing rings on the screw rod, whole packing ring and with the screw-thread fit's of screw rod nut, the end face of screw rod is equipped with a grafting connection structure, foretell two formula folding packing rings and whole packing ring's surface is equipped with relative cyclic annular convex part respectively, two formula folding packing rings constitute ring shape packing ring by two semicircle gaskets, a surface of ring shape packing ring is equipped with the connection and can makes the not looks mutual separation's of ring shape packing ring connection flexure strip, connect the surface coplanar of flexure strip and ring shape packing ring.
The plug-in connection structure is characterized in that the end face of the screw rod is provided with a polygonal blind hole with at least three edges.
The plug-in connection structure is characterized in that the end head surface of the screw rod is provided with a protruding end with a cross section of at least a trilateral shape.
The connecting elastic sheet is a thin steel sheet or a thin plastic sheet, or a composite sheet formed by at least two thin steel wires or a plurality of thin steel wire meshes and plastics.
And a positioning sleeve is arranged between the two-piece type folding gasket and the integral gasket.
And a gasket or/and a sensing device are/is arranged between the integral washer and the nut.
The utility model discloses an unilateral bolt, at first be the design simple structure of two formula collapsible packing rings, whole process after the preparation can keep intact, can not loose break away from, and the unilateral bolt of constitution, not only simply and very reliable, the installation is quick, still further has the suggestion of the unilateral bolt abnormal conditions appearance to important fastening position and reports an emergency and asks for help or increased vigilance, has important meaning to the security and the stability of whole framework.
Description of the drawings:
fig. 1 is a schematic perspective view of an expanded part of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the fastening of the member according to the embodiment shown in fig. 1.
Fig. 3 is a perspective expanded structure diagram of the installation state of the embodiment shown in fig. 1.
Fig. 4 is a schematic perspective view of the expanded parts according to another embodiment of the present invention.
Fig. 5 is a schematic structural view of the embodiment shown in fig. 4 for fastening a member.
Fig. 6 is a perspective expanded structure diagram of the embodiment shown in fig. 4 in an installation state.
Fig. 7 is a schematic perspective view of a mounting tool used in mounting the present invention.
Fig. 8 is a front view structural schematic diagram of the two-piece foldable washer of the present invention.
Fig. 9 is a front view of another two-piece foldable washer according to the present invention.
Fig. 10 is a schematic view of a cross-sectional structure a-a in fig. 8.
The specific implementation mode is as follows:
while the detailed description of the embodiments of the present invention is provided in conjunction with fig. 1 to 10 of the specification, it should be noted that the detailed description of the embodiments is provided to facilitate the comprehensive understanding of the technical spirit of the present invention, and should not be construed as limiting the scope of the claims of the present invention.
Referring to fig. 1 to 10, the technical solution of the embodiment of the present invention is: unilateral bolt with two formula folding packing rings, including screw rod 1 that has the one end nut, the key is that the cover is equipped with two formula folding packing rings 2 on the screw rod 1, whole packing ring 3 and with screw rod 1's screw-thread fit's nut 4, screw rod 1's end face is equipped with a grafting connection structure 6, foretell two formula folding packing rings 2 and whole packing ring 3's surface is equipped with relative annular convex part respectively, two formula folding packing rings 2 constitute ring shape packing ring by two semicircle gaskets, a surface of ring shape packing ring is equipped with connects and can makes the connection flexure strip 5 that ring shape packing ring inseparable each other, connect the surface coplanar of flexure strip 5 and ring shape packing ring. Referring to fig. 3 or 6, when the present invention is used for installation and fastening of engineering components, firstly, the screw rod 1 of the aforementioned single-sided bolt is inserted into one side of the through hole 11 of two components 10 to be fastened and connected, the two-piece foldable washer 2, the integral washer 3 and the nut 4 are sleeved on an installation tool 12 with a slender rod, the two-piece foldable washer 2 is bent at an angle, the contact surface of the two bent semicircular rings is matched with a clamping portion 13 on the installation tool 12 to maintain the bent state, the installation tool 12 is pushed in the direction P shown in fig. 3 or 6, the connector at the front end of the installation tool 12 is connected with the plug-in connection structure 6 at the end face of the screw rod 1, the installation tool 12 is continuously pushed to enable the two-piece foldable washer 2 sleeved on the installation tool 12 in the bent state to pass through the through hole 11 of the two components 10, then the installation tool 12 is pushed downwards and pulled backwards or the installation tool 12 is rotated, the two-piece folding washer 2 is separated from the position of the clamping part 13 of the installation tool 12, and returns to the flat state under the action of the elastic force of the connection elastic part 5, and finally the installation tool 12 is pulled in the direction opposite to the arrow P shown in figure 3 or figure 6, so that the two-piece folding washer 2 and the nut at one end of the single-side bolt are positioned on one side surface of the component 10 to be fastened and connected, the end of the screw rod 1 is exposed out of the other side of the component 10, the whole washer 3 and the nut 4 are pushed forwards, the nut 4 is matched with the screw thread of the screw rod 1, the nut 4 is screwed, and the two components 10 to be fastened and connected are fastened by the single-side bolt. The surface of the connecting elastic element 5 is coplanar with the surface of the circular ring-shaped gasket, that is, the surface of the circular ring-shaped gasket is provided with a concave part (not shown in the figure) matched with the shape of the connecting elastic element 5, and the acting force of the nut at one end of the screw 1 directly acts on the surface of the circular ring-shaped gasket, so that the surface of the connecting elastic element 5 is prevented from only contacting with the nut to reduce the fastening force. The annular convex parts arranged on the two-piece type folding gasket 2 and the integral gasket 3 are arranged in the through hole 11 of the component 10, so that the dislocation of the two-piece type folding gasket 2 and the integral gasket 3 can be effectively reduced, and the static friction force of the unilateral bolt and the stability of the whole framework are improved.
The plug-in connection structure 6 is a blind hole with an end face of the screw rod 1 provided with at least three-sided polygon, such as a quadrilateral, pentagonal or hexagonal blind hole, or the plug-in connection structure 6 is a protruding end with a cross section of at least three sides, such as a quadrilateral, pentagonal or hexagonal protruding end, which is arranged corresponding to the concave-convex part of the connector at the end of the mounting tool 12, so that the plug-in connection between the two can be realized.
The former component 10 to be fastened and connected is two to-be-connected components, in the actual engineering, the stress between the two components is often different, so that the two components 10 have the tendency of dislocation or relative displacement, the screw of the unilateral bolt is subjected to the action of shearing force, on one hand, the screw is deformed or cut off, and the fastening force of the unilateral bolt is reduced due to the deformation, in order to avoid the situation, a positioning sleeve 7 is arranged between the two-piece foldable washer 2 and the integral washer 3, during the actual engineering installation, the positioning sleeve 7 is positioned in the through hole 11 of the component 10, so that the shearing force generated by the dislocation displacement of the two components 10 can act on the positioning sleeve 7, the effect of protecting the screw 1 is achieved, meanwhile, a dislocation space can be avoided between the two components 10, and the stability of the whole engineering framework is also good; in order to further increase the fastening force and the friction force of the unilateral bolt, a washer 8 is arranged between the integral washer 3 and the nut 4; in the long-term use of the unilateral bolt on the fastened component 10, the unilateral bolt can be loosened or damaged variously, which brings harm or hidden danger to a plurality of high-requirement frameworks, therefore, a sensing device 9 is arranged between the integral washer 3 and the nut 4 or a sensing device is arranged between the washer 8 and the nut 4, when the nut 4 is screwed, an acting force is applied to the sensing device 9, when the nut 4 is loosened or the screw 1 is subjected to an overlarge acting force or the screw 1 is broken, the sensing device 9 has corresponding stress induction, the sensing device 9 is a force sensing device, and for the prior art, the detailed description of the sensing device itself is not provided. The elastic member 6 is made of a thin steel sheet or a thin plastic sheet, or a composite material sheet formed by combining a thin steel wire and a plastic material, and has better bending performance and elasticity.
Claims (6)
1. The utility model provides a unilateral bolt with folding packing ring of two formula, including screw rod (1) that has the one end nut, the cover is equipped with folding packing ring of two formula (2) on its characterized in that screw rod (1), whole packing ring (3) and with screw-thread fit's nut (4) of screw rod (1), the end face of screw rod (1) is equipped with one and pegs graft connection structure (6), the surface of foretell folding packing ring of two formula (2) and whole packing ring (3) is equipped with relative annular convex part respectively, folding packing ring of two formula (2) comprises two semicircle gaskets ring shape packing ring, ring shape packing ring's a surface is equipped with connects and can make the connection flexure strip (5) that ring shape packing ring not alternate segregation, connect flexure strip (5) and ring shape packing ring's surface coplanar.
2. The single-sided bolt with the two-piece folding washer according to claim 1, characterized in that the plug connection structure (6) is a blind hole with a polygonal shape with at least three sides formed on the end face of the threaded rod (1).
3. The single-sided bolt with the two-piece folding washer according to claim 1, characterized in that the plug connection structure (6) is a protruding end with a cross section of at least three-sided shape provided on the end face of the bolt (1).
4. The single-sided bolt with the two-piece folded washer according to claim 1, 2 or 3, characterized in that the connecting elastic piece (5) is a thin steel sheet or a thin plastic sheet, or a composite sheet of at least two thin steel wires or a plurality of thin steel wire meshes and plastic.
5. The single-sided bolt with two-piece folded washer according to claim 4 characterized in that a locating sleeve (7) is provided between the two-piece folded washer (2) and the integral washer (3).
6. The single-sided bolt with two-piece folded washer according to claim 5, characterized in that a washer (8) or/and a sensing device (9) is/are arranged between the integral washer (3) and the nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611385.3U CN210799651U (en) | 2019-04-29 | 2019-04-29 | Unilateral bolt with two-piece type folding gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611385.3U CN210799651U (en) | 2019-04-29 | 2019-04-29 | Unilateral bolt with two-piece type folding gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210799651U true CN210799651U (en) | 2020-06-19 |
Family
ID=71241246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920611385.3U Active CN210799651U (en) | 2019-04-29 | 2019-04-29 | Unilateral bolt with two-piece type folding gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210799651U (en) |
-
2019
- 2019-04-29 CN CN201920611385.3U patent/CN210799651U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210303 Address after: 315824 3rd floor, building 1, 612 Fuchunjiang Road, Xinqi, Beilun District, Ningbo City, Zhejiang Province Patentee after: NINGBO DAZHI MACHINE TECHNOLOGY Co.,Ltd. Address before: 717 Zhongxing Road, Jiangdong District, Ningbo City, Zhejiang Province (16-10 Huahong International Center) Patentee before: Ningbo Xinyang Weiye import and Export Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jiangang Inventor after: He Chunfen Inventor after: Fan Hangjian Inventor before: Wang Jiangang Inventor before: He Chunfeng Inventor before: Fan Hangjian |
|
| CB03 | Change of inventor or designer information |