CN211474616U

CN211474616U - Screw rod type expansion bolt for concrete

Info

Publication number: CN211474616U
Application number: CN201922385197.6U
Authority: CN
Inventors: 谢二雷
Original assignee: Nanjing Yangzi Concrete Products Co ltd
Current assignee: Nanjing Yangzi Concrete Products Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-11
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to an expansion bolts technical field just discloses a screw rod type expansion bolt for concrete, including threaded rod, outer tube and spacing ring, the inside of outer tube cup joints with the surface activity of threaded rod, the left side of spacing ring and the right side fixed connection of outer tube, and the inside of spacing ring cup joints with the surface activity of threaded rod, the gasket has been cup jointed in the surface activity of threaded rod right-hand member. This screw rod type inflation is tied for concrete, rotatory hexagon nut, effect through hexagon nut makes the threaded rod remove to the outside of mounting hole, make the extrusion piece form the extrusion to deformation sheathed tube inner wall, then make deformation sleeve pipe take place to warp, effect through deformation sheathed tube lateral wall and anti-skidding tooth piece makes whole device fix the inside at the mounting hole, when the threaded rod is close to the one end of extrusion piece and remove when being close to the position of solid fixed ring, stop rotation prevents that the bolt is rotatory excessively and leads to whole outer tube to take place to break.

Description

Screw rod type expansion bolt for concrete

Technical Field

The utility model relates to an expansion bolts technical field specifically is a screw rod type expansion bolt for concrete.

Background

Expansion bolts, fix pipeline support or equipment on the wall, the floor and the used special threaded connection spare on the post, expansion bolts mainly comprises countersunk head bolt, the expand tube, plain washer and hexagon nut isotructure, traditional expansion bolts drives the expand tube through screwing countersunk head bolt and takes place to take shape to change and fix whole device, the device is in the use, if countersunk head bolt rotates excessively can lead to whole expand tube to take place to break, though also can fix the object if whole expand tube is broken, its fixed effect can receive the influence of certain degree, make the fixed effect of device not very good, consequently need a screw rod type expansion bolt for concrete to make the fixed effect of device reach better urgently.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a screw rod type expansion bolt for concrete possesses and prevents that whole expand tube from appearing breaking for the fixed effect of device reaches advantages such as better, has solved the problem that proposes among the above-mentioned background art.

(II) technical scheme

The utility model provides a following technical scheme: a screw rod type expansion bolt for concrete comprises a threaded rod, an outer sleeve and a limiting ring, wherein the inner part of the outer sleeve is movably sleeved with the outer surface of the threaded rod, the left side of the limiting ring is fixedly connected with the right side of the outer sleeve, the inner part of the limiting ring is movably sleeved with the outer surface of the threaded rod, a gasket is movably sleeved on the outer surface of the right end of the threaded rod, the gasket is positioned on the right side of the limiting ring, a hexagon nut is connected with the right end of the threaded rod in a threaded manner, the hexagon nut is positioned on the right side of the gasket, one end of the outer sleeve comprises a deformation sleeve, the right end of the deformation sleeve is fixedly connected with the left end of the outer sleeve through a fixing ring, one end of the threaded rod comprises an extrusion block, the right side of the extrusion block is fixedly connected with the left end of the threaded rod, the surface on the right, and one side of each anti-skid tooth block, which is opposite to the corresponding anti-skid tooth block, is fixedly connected with the left sides of the top and the bottom of the deformation sleeve respectively.

Preferably, one side of the limit ring comprises a cushion pad, and the right side of the cushion pad is fixedly connected with the left side of the limit ring.

Preferably, the right side of fixed ring and the left end fixed connection of outer tube, the left side of fixed ring and the right end fixed connection of deformation sleeve pipe.

Preferably, two deformation notches are formed in the side surface of the deformation sleeve, and the two deformation notches are located on the front face and the back face of the left end of the deformation sleeve respectively.

Preferably, one side of the extrusion block comprises a connecting block and a limit nail, the right side of the connecting block is fixedly connected with the left side of the extrusion block, and the right end of the limit nail is fixedly connected with the left side of the connecting block.

Preferably, the side surface of the limit ring comprises two side limit baffles, one side of each of the two side limit baffles is fixedly connected with the top and the bottom of the limit ring, and the left sides of the two side limit baffles are fixedly connected with limit tooth blocks.

Compared with the prior art, the utility model provides a screw rod type expansion bolt for concrete possesses following beneficial effect:

1. this screw rod type expansion bolt for concrete, in the mounting hole with the device nail into the wall body, effect through the stop pin is spacing to the position of whole device, make this expansion bolt advance along the direction of stop pin, after the device enters into the inside of mounting hole, rotatory hexagon nut, effect through hexagon nut makes the threaded rod to the outside removal of mounting hole, make the extrusion piece to deformation sheathed tube inner wall formation extrusion, then make deformation sleeve pipe take place to warp, effect through deformation sheathed tube lateral wall and anti-skidding tooth piece makes whole device fix the inside at the mounting hole, stall when the threaded rod is close to the one end of extrusion piece and removes to the position that is close to solid fixed ring, prevent that the bolt is rotatory excessively and lead to whole outer tube to take place to break.

2. This screw rod type expansion bolt for concrete, through being provided with the spacing ring, limit baffle and spacing tooth piece, when this expansion bolt enters into the inside of mounting hole, the effect through the spacing ring is carried on spacingly to the position of bolt, then limit baffle and spacing tooth piece and the regional contact around the mounting hole, further carry on spacingly to the position of screw rod, threaded rod and outer tube take place to rock from top to bottom in the exit of mounting hole, through being provided with the blotter, can cushion the protection to the oral area of mounting hole, the rigid structure of preventing means causes great damage to the oral area of mounting hole.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the structure of the limiting ring of the present invention;

fig. 3 is a side view of the deformation sleeve structure of the present invention.

Wherein: 1. a threaded rod; 2. an outer sleeve; 3. a limiting ring; 4. a cushion pad; 5. a gasket; 6. a hexagonal nut; 7. a fixing ring; 8. a deformation sleeve; 9. a deformation notch; 10. an anti-slip tooth block; 11. extruding the block; 12. connecting blocks; 13. a limit pin; 14. a limit baffle; 15. and a limiting tooth block.

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. 1-3, a screw type expansion bolt for concrete, comprising a threaded rod 1, an outer sleeve 2 and a limit ring 3, wherein the inner part of the outer sleeve 2 is movably sleeved with the outer surface of the threaded rod 1, the left side of the limit ring 3 is fixedly connected with the right side of the outer sleeve 2, the inner part of the limit ring 3 is movably sleeved with the outer surface of the threaded rod 1, one side of the limit ring 3 comprises a cushion pad 4, the right side of the cushion pad 4 is fixedly connected with the left side of the limit ring 3, the outer surface of the right end of the threaded rod 1 is movably sleeved with a gasket 5, the gasket 5 is positioned on the right side of the limit ring 3, the right end of the threaded rod 1 is in threaded connection with a hexagon nut 6, the hexagon nut 6 is positioned on the right side of the gasket 5, one end of the outer sleeve 2 comprises a deformation sleeve 8, the right end of the deformation sleeve 8, the left side of the fixing ring 7 is fixedly connected with the right end of the deformation sleeve 8, the side surface of the deformation sleeve 8 is provided with two deformation notches 9, the two deformation notches 9 are respectively positioned on the front and the back of the left end of the deformation sleeve 8, one end of the threaded rod 1 comprises an extrusion block 11, the right side of the extrusion block 11 is fixedly connected with the left end of the threaded rod 1, the surface of the right side of the extrusion block 11 is movably connected with the inside of the deformation sleeve 8, the left end of the deformation sleeve 8 comprises two anti-skidding tooth blocks 10, one sides, opposite to the two anti-skidding tooth blocks 10, are respectively fixedly connected with the left sides of the top and the bottom of the deformation sleeve 8, one side of the extrusion block 11 comprises a connecting block 12 and a limit nail 13, the right side of the connecting block 12 is fixedly connected with the left side of the extrusion block 11, the right end of the limit nail 13 is fixedly connected with the left side of the, can break some barriers inside the mounting hole, then the inside that the whole device of being convenient for entered into the mounting hole is installed, and the side surface of spacing ring 3 is including both sides limit baffle 14, and two limit baffle 14 relative one side respectively with the top and the bottom fixed connection of spacing ring 3, the equal fixedly connected with spacing tooth piece 15 in left side of two limit baffle 14.

When the device is used, the device is nailed into a mounting hole of a wall body, the position of the whole device is limited through the action of the limit nail 13, the expansion bolt advances towards the inside of the mounting hole along the direction of the limit nail 13, after the device enters the inside of the mounting hole, the hexagon nut 6 is rotated, the threaded rod 1 moves towards the outside of the mounting hole through the action of the hexagon nut 6, the extrusion block 11 extrudes the inner wall of the deformation sleeve 8, then the deformation sleeve 8 deforms, the whole device is fixed inside the mounting hole through the action of the outer side wall of the deformation sleeve 8 and the anti-skidding tooth block 10, the rotation is stopped when one end of the threaded rod 1, close to the extrusion block 11, moves to the position close to the fixing ring 7, and the threaded rod 1 is prevented from excessively rotating to cause the whole outer sleeve 2 to break.

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

1. The utility model provides a screw rod type expansion bolt for concrete, includes threaded rod (1), outer tube (2) and spacing ring (3), its characterized in that: the utility model discloses a threaded rod of the building engineering machinery, including outer tube (2), spacing ring (3), gasket (5), threaded rod (1), outer tube (2), fixed ring (3), hexagonal nut (6), gasket (5), outer tube (2), deformation sleeve pipe (8), fixed ring (7) and outer tube (2) are passed through to the right-hand member of deformation sleeve pipe (8), the one end of threaded rod (1) is including extrusion piece (11), the right side of extrusion piece (11) and the left end fixed connection of threaded rod (1), and the surface on the right side of the extrusion block (11) is movably connected with the inside of the deformation sleeve (8), the left end of the deformation sleeve (8) comprises two anti-skidding tooth blocks (10), and one sides, opposite to the anti-skidding tooth blocks (10), of the anti-skidding tooth blocks are fixedly connected with the top and the bottom of the deformation sleeve (8) respectively.

2. A screw-type expansion plug for concrete according to claim 1, wherein: one side of the limiting ring (3) comprises a cushion pad (4), and the right side of the cushion pad (4) is fixedly connected with the left side of the limiting ring (3).

3. A screw-type expansion plug for concrete according to claim 1, wherein: the right side of fixed ring (7) and the left end fixed connection of outer tube (2), the left side of fixed ring (7) and the right end fixed connection of deformation sleeve pipe (8).

4. A screw-type expansion plug for concrete according to claim 1, wherein: two deformation notches (9) are formed in the side surface of the deformation sleeve (8), and the two deformation notches (9) are respectively located on the front face and the back face of the left end of the deformation sleeve (8).

5. A screw-type expansion plug for concrete according to claim 1, wherein: one side of extrusion piece (11) is including connecting block (12) and stop pin (13), the right side of connecting block (12) and the left side fixed connection of extrusion piece (11), the right-hand member of stop pin (13) and the left side fixed connection of connecting block (12).

6. A screw-type expansion plug for concrete according to claim 1, wherein: the side surface of the limiting ring (3) comprises two side limiting baffle plates (14), one side of each side limiting baffle plate (14) which is opposite to the top and the bottom of the limiting ring (3) is fixedly connected with a limiting tooth block (15) which is fixedly connected with the left side of each limiting baffle plate (14).