CN211924678U - Expansion bolt with clamping block - Google Patents
Expansion bolt with clamping block Download PDFInfo
- Publication number
- CN211924678U CN211924678U CN202020488191.1U CN202020488191U CN211924678U CN 211924678 U CN211924678 U CN 211924678U CN 202020488191 U CN202020488191 U CN 202020488191U CN 211924678 U CN211924678 U CN 211924678U
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- CN
- China
- Prior art keywords
- sleeve
- expansion
- screw rod
- clamping block
- block
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an expansion bolt with a clamping block, wherein a clamping column is welded at one end of a screw rod, the screw rod is connected with a fastening nut through a thread, a gasket is arranged outside the screw rod at a position between a sleeve and the fastening nut, a limiting mechanism is arranged at one side of the inner wall of the sleeve, which is close to the clamping column, and two sets of anti-slip mechanisms are symmetrically arranged at the middle part of the inner wall of the sleeve about the axis of the inner wall of the sleeve; the spring is used for pushing the clamping block to rotate around the rotating shaft in a small range so as to protrude the outer surface of the screw, the clamping block is embedded into the guide groove to limit the rotation of the screw, the movement of the screw in the axial direction is smooth, the mutual rotation between the bolt and the sleeve is prevented, and the fastening nut is convenient to tighten.
Description
Technical Field
The utility model relates to a fastener technical field specifically is a take expansion bolts of fixture block.
Background
The expansion bolt has the structure that the tail part of the body is provided with a big head, an outer sleeve which is slightly larger than the diameter of the bolt is sleeved on the outer surface of the bolt, and the tail part is provided with a plurality of openings. The expansion bolt can slide to a certain extent under the condition of tension along with the time lapse, and even can fall off, so that the expansion bolt has potential safety hazards to a certain extent. However, the expansion bolt with the clamping block in the existing structure often causes the bolt body and the outer sleeve to be incapable of being clamped when the hexagon nut is screwed, and the nut cannot be screwed completely due to rotation. When dismantling old and useless collision bolt, the inside swelling of sleeve pipe and gomphosis in the hole, and the outer end often flushes with the drill way, lacks the stress position, and the sleeve is dismantled the degree of difficulty greatly. Therefore, the utility model provides a take expansion bolts of fixture block is used for solving above-mentioned problem.
Disclosure of Invention
An object of the utility model is to provide a take expansion bolts of fixture block to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take expansion bolts of fixture block, includes screw rod and sleeve, the one end welding of screw rod has the card post, the screw rod deviates from one side outer peripheral face of card post and has attacked the screw thread outward, the screw rod passes through threaded connection fastening nut, the screw rod externally mounted of position between sleeve and the fastening nut has the gasket, stop gear is installed to one side that the sleeve inner wall is close to the card post, two sets of limited slip mechanisms are installed about its axis symmetry in the middle part of sleeve inner wall, the sleeve includes straight section of thick bamboo, dilatation joint, inflation section, expansion joint and expansion section, one side that the straight section of thick bamboo is close to the card post is the inflation section, four inflation joints have been seted up about its axis complete symmetry to the inflation section, the straight section of thick bamboo is close to fastening nut one side and is the expansion section, the expansion section has seted.
Preferably, the limiting mechanism comprises an installation groove, a rotating shaft, a clamping block and an elastic sheet, the rotating shaft is welded at the lower part of the inner side of the installation groove, the rotating shaft penetrates through a through hole formed in the lower part of one side of the clamping block, and the elastic sheet is installed at the bottom of the installation groove.
Preferably, the mounting groove is formed in one side of the outer portion of the screw, and the elastic sheet is arc-shaped and the top of the elastic sheet contacts with the bottom of the clamping block.
Preferably, the anti-slip mechanism comprises a mounting hole, an anti-slip block, a light spring and a limiting block, the anti-slip block is rotatably mounted on the outer side of the inside of the mounting hole, the bottom of the mounting hole is connected with the anti-slip block through the light spring, and the limiting block is welded on one side of the outer edge of the mounting hole.
Preferably, the mounting hole is formed in the middle of the inner wall of the sleeve, and the limiting block is close to one side of the anti-slip block rotating shaft.
Preferably, a guide groove is formed in the inner wall of the sleeve corresponding to the clamping block, the guide groove is formed in the axial direction of the sleeve, an annular anti-slip groove is formed in the screw corresponding to the anti-slip block, the cross section of the anti-slip groove is in a right triangle shape, and a right-angle surface is formed in one side close to the clamping column.
Preferably, the middle part of the expansion section is provided with a mounting opening, a bending strip is welded inside the mounting opening, and the outer edge of the inner wall of the expansion section is a chamfer.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the expansion section is extruded by the fastening nut and is bent outwards to expand, the expansion section is completely attached to the surface of a fixed object along with the continuous movement of the gasket and the fastening nut, the sleeve is firmly fixed in the hole by the expansion section in the expansion state, and the firmness degree is high;
2. the spring is used for pushing the clamping block to rotate around the rotating shaft in a small range so as to protrude the outer surface of the screw, the clamping block is embedded into the guide groove to limit the rotation of the screw, the movement of the screw in the axial direction is smooth, the mutual rotation between the bolt and the sleeve is prevented, and the fastening nut is convenient to tighten;
3. the outer end of the anti-slip block is pushed by the light spring to slide along the outer peripheral surface of the screw rod until the outer end is embedded into the anti-slip groove to lock the screw rod, so that the influence of the excessive sliding of the screw rod on the stability of an external fixed object is avoided, and the integral firmness is improved;
4. after the bending strip is picked out and bent by using a tool, the bending strip is turned over to form an unfolding section, so that an operator can conveniently pull the sleeve out of the hole by using tools such as pliers and the like, and the disassembling operation of the collision bolt is facilitated.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a limiting mechanism of the present invention;
fig. 3 is a schematic structural view of the anti-slip mechanism of the present invention.
In the figure: the anti-slip device comprises a screw rod 1, a sleeve 2, a thread 3, a gasket 4, a fastening nut 5, a clamping column 6, a limiting mechanism 7, an anti-slip mechanism 8, a mounting opening 9, a bending strip 10, a chamfer 11, a sliding groove 12, an anti-slip groove 13, a mounting groove 71, a rotating shaft 72, a clamping block 73, an elastic sheet 74, a mounting hole 81, an anti-slip block 82, a light spring 83 and a limiting block 84.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: an expansion bolt with a clamping block comprises a screw rod 1 and a sleeve 2, a clamping column 6 is welded at one end of the screw rod 1, the clamping column 6 enters the sleeve 2 to expand the sleeve, threads 3 are tapped on the outer peripheral surface of one side, deviating from the clamping column 6, of the screw rod 1, the screw rod 1 is in threaded connection with a fastening nut 5 through the threads 3, the fastening nut 5 rotates to extrude the outer end of a tower barrel 2 to pull out the screw rod 1, the clamping column 6 is pulled by the screw rod 1 to move towards the inside of the sleeve 2, a gasket 4 is mounted on the outer portion of the screw rod 1 between the sleeve 2 and the fastening nut 5, the gasket 4 enlarges the contact area between the fastening nut 5 and the end portion of the sleeve 2, a limiting mechanism 7 is mounted on one side, close to the clamping column 6, of the inner wall of the sleeve 2, the limiting mechanism 7 prevents the screw rod 1 from rotating, two sets of anti-slip mechanisms 8 are symmetrically mounted, The expansion joint 22, the expansion section 23, the expansion joint 24 and the expansion section 25, the expansion section 23 is arranged on one side of the straight cylinder 21 close to the clamping column 6, the expansion section 23 is extruded by the clamping column 6 to expand, four expansion joints 22 are completely and symmetrically arranged on the expansion section 23 about the axis of the expansion section 23, the expansion joint 22 is convenient for the expansion section 23 to be smoothly expanded, the expansion section 25 is arranged on one side of the straight cylinder 21 close to the fastening nut 5, four expansion joints 24 are completely and symmetrically arranged on the expansion section 25 about the axis of the expansion section 25, the expansion joints 24 are convenient for the expansion section 25 to be pressed and bent, the expansion section 25 is pressed and bent outwards to expand and is completely attached to the surface of a fixed object along with the continuous movement of the gasket 4 and the fastening nut 5, and the expansion section 25 in the expansion state and the expansion section 22 in the expansion state firmly fix the.
Further, the limiting mechanism 7 comprises an installation groove 71, a rotating shaft 72, a clamping block 73 and an elastic sheet 74, the rotating shaft 72 is welded at the lower part of the inner side of the installation groove 71, the rotating shaft 72 penetrates through a through hole formed in the lower part of one side of the clamping block 73, the elastic sheet 74 is installed at the bottom of the installation groove 71, a spring 74 pushes the clamping block 73 to rotate around the rotating shaft 72 for a small angle so as to protrude out of the outer surface of the screw 1, the clamping block 73 is embedded into the guide groove 12 to limit the rotation of the screw 1, the movement of the screw 1 in the axial direction is smooth, the mutual rotation between the bolt 1 and the.
Further, the mounting groove 71 is formed in one side of the outer portion of the screw rod 1, the elastic piece 74 is arc-shaped, the top of the elastic piece 74 contacts with the bottom of the clamping block 73, and the elastic piece 74 pushes the clamping block 73 to protrude out of the outer surface of the screw rod 1.
Further, the anti-slip mechanism 8 comprises a mounting hole 81, an anti-slip block 82, a light spring 83 and a limiting block 84, the anti-slip block 82 is rotatably mounted on the outer side of the inside of the mounting hole 81, the bottom of the mounting hole 81 is connected with the anti-slip block 82 through the light spring 83, the limiting block 84 is welded on one side of the outer edge of the mounting hole 81, the light spring 83 pushes the outer end of the anti-slip block 82 to slide along the outer peripheral surface of the screw rod 1 until the outer end is embedded into the anti-slip groove 13 to lock the screw rod 1, the influence of excessive sliding of the screw rod 1 on the stability of an external fixed.
Further, the mounting hole 81 is formed in the middle of the inner wall of the sleeve 2, the limiting block 84 is close to one side of the rotating shaft of the anti-slip block 82, and the limiting block 84 prevents the anti-slip block 82 from excessively rotating and supports a part of pressure transmitted by the anti-slip block 82.
Furthermore, a guide groove 12 is formed in the inner wall of the sleeve 2 at a position corresponding to the stopper 73, the guide groove 12 is formed along the axial direction of the sleeve 2, the guide groove 12 guides the movement of the stopper 73, an annular anti-slip groove 13 is formed in the screw 1 at a position corresponding to the anti-slip block 82, the cross section of the anti-slip groove 13 is in a right triangle shape, and a right-angle surface is formed on one side close to the clamping column 6.
Further, the installation opening 9 has been seted up at the middle part of expansion section 25, the internal welding of installation opening 9 has bending strip 10, welding bending strip 10 is little to gasket 4 and fastening nut 5 interference in the installation opening 9, bending strip 10 is chosen and is bent the back, turns over a expansion section 25, the operating personnel of being convenient for uses tools such as pliers to extract sleeve 2 from the hole, expansion section 23 inner wall periphery is chamfer 11, chamfer 11 makes the smooth inside that gets into expansion section 23 of card post 6.
The working principle is as follows: when the expansion bolt is assembled, the sleeve 2 is sleeved outside the screw rod 1, then the screw rod 1 is rotated to enable the fixture block 73 to be embedded into the guide groove 12 to limit the rotation of the screw rod 1, the axial direction of the screw rod 1 moves smoothly to prevent the mutual rotation between the screw rod 1 and the sleeve 2, after the assembly is completed, the expansion bolt is plugged into a pre-drilled fixing hole, an operator rotates the fastening nut 5 by using a wrench, the fastening nut 5 rotates to extrude the outer end of the tower barrel 2 to pull out the screw rod 1, the screw rod 1 pulls the clamping column 6 to move towards the inside of the sleeve 2, the clamping column 6 enters the sleeve 2 to expand the sleeve, meanwhile, the fastening nut 5 extrudes the expansion section 25 at the end part of the sleeve 2 by virtue of the gasket 4, the expansion section 25 is pressed to bend outwards to expand and is completely attached to the surface of a fixed object along with the continuous movement of the gasket 4 and the fastening nut 5, and in the moving process of the screw rod 1, the light spring 83 of, until the screw rod 1 is embedded into the sliding stopping groove 13 to lock the screw rod 1, so that the stability of an external fixed object is prevented from being influenced by excessive sliding of the screw rod 1.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The expansion bolt with the clamping block comprises a screw rod (1) and a sleeve (2), and is characterized in that one end of the screw rod (1) is welded with a clamping column (6), the outer peripheral surface of one side, deviating from the clamping column (6), of the screw rod (1) is externally tapped with a thread (3), the screw rod (1) is in threaded connection with a fastening nut (5) through the thread (3), a gasket (4) is arranged outside the screw rod (1) between the sleeve (2) and the fastening nut (5), a limiting mechanism (7) is arranged on one side, close to the clamping column (6), of the inner wall of the sleeve (2), two sets of anti-slip mechanisms (8) are symmetrically arranged in the middle of the inner wall of the sleeve (2) relative to the axis of the inner wall of the sleeve (2), the sleeve (2) comprises a straight cylinder (21), an expansion joint (22), an expansion section (23), an expansion joint (24) and an expansion section (25), one side, close to the clamping, the expansion section (23) is completely symmetrically provided with four expansion slits (22) about the axis thereof, one side of the straight cylinder (21) close to the fastening nut (5) is an expansion section (25), and the expansion section (25) is completely symmetrically provided with four expansion slits (24) about the axis thereof.
2. The expansion bolt with clamping block as claimed in claim 1, wherein: the limiting mechanism (7) comprises an installation groove (71), a rotating shaft (72), a clamping block (73) and an elastic sheet (74), the rotating shaft (72) is welded at the lower part of the inner side of the installation groove (71), the rotating shaft (72) penetrates through a through hole formed in the lower part of one side of the clamping block (73), and the elastic sheet (74) is installed at the bottom of the installation groove (71).
3. The expansion bolt with clamping block as claimed in claim 2, wherein: the mounting groove (71) is formed in one side of the outer portion of the screw rod (1), and the elastic sheet (74) is arc-shaped and the top of the elastic sheet contacts with the bottom of the clamping block (73).
4. The expansion bolt with clamping block as claimed in claim 1, wherein: the anti-slip mechanism (8) comprises a mounting hole (81), an anti-slip block (82), a light spring (83) and a limiting block (84), the anti-slip block (82) is rotatably mounted on the outer side of the inside of the mounting hole (81), the bottom of the mounting hole (81) is connected with the anti-slip block (82) through the light spring (83), and the limiting block (84) is welded on one side of the outer edge of the mounting hole (81).
5. The expansion bolt with clamping block as claimed in claim 4, wherein: the mounting hole (81) is formed in the middle of the inner wall of the sleeve (2), and the limiting block (84) is close to one side of the rotating shaft of the anti-slip block (82).
6. The expansion bolt with clamping block as claimed in claim 1, wherein: the anti-slip sleeve is characterized in that a guide groove (12) is formed in the inner wall of the sleeve (2) corresponding to the position of the clamping block (73), the guide groove (12) is formed in the axis direction of the sleeve (2), an annular anti-slip groove (13) is formed in the position, corresponding to the anti-slip block (82), of the screw rod (1), the cross section of the anti-slip groove (13) is in a right-angled triangle shape, and a right-angle surface is formed in one side, close to the clamping column (6).
7. The expansion bolt with clamping block as claimed in claim 1, wherein: the middle part of the expansion section (25) is provided with a mounting opening (9), a bending strip (10) is welded in the mounting opening (9), and the outer edge of the inner wall of the expansion section (23) is an oblique plane (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020488191.1U CN211924678U (en) | 2020-04-05 | 2020-04-05 | Expansion bolt with clamping block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020488191.1U CN211924678U (en) | 2020-04-05 | 2020-04-05 | Expansion bolt with clamping block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924678U true CN211924678U (en) | 2020-11-13 |
Family
ID=73374475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020488191.1U Expired - Fee Related CN211924678U (en) | 2020-04-05 | 2020-04-05 | Expansion bolt with clamping block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924678U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879403A (en) * | 2021-01-25 | 2021-06-01 | 谢亚洲 | Non-woven fabric roll mounting mechanism of mask machine |
| CN112932568A (en) * | 2020-12-25 | 2021-06-11 | 刘铁龙 | Cervical anterior vertebral body spreader |
| CN113530938A (en) * | 2021-05-27 | 2021-10-22 | 朱睿阳 | Large-load fastener |
| CN114232496A (en) * | 2021-12-30 | 2022-03-25 | 刘丽花 | Waterproof fastening device is used in public road bridge roof beam construction that portable warning effect is good |
-
2020
- 2020-04-05 CN CN202020488191.1U patent/CN211924678U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932568A (en) * | 2020-12-25 | 2021-06-11 | 刘铁龙 | Cervical anterior vertebral body spreader |
| CN112879403A (en) * | 2021-01-25 | 2021-06-01 | 谢亚洲 | Non-woven fabric roll mounting mechanism of mask machine |
| CN113530938A (en) * | 2021-05-27 | 2021-10-22 | 朱睿阳 | Large-load fastener |
| CN114232496A (en) * | 2021-12-30 | 2022-03-25 | 刘丽花 | Waterproof fastening device is used in public road bridge roof beam construction that portable warning effect is good |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201113 |