CN218760798U - Expansion bolt for building wall - Google Patents

Abstract

The utility model relates to the technical field of bolts, and discloses an expansion bolt for building walls, which comprises a screw rod, wherein the outer side of the screw rod is in threaded connection with a nut, the outer side of the screw rod is provided with an expansion component, and the inner part of the screw rod is provided with a reinforcing component; threaded rod right-hand member outside threaded connection has the screw thread piece, and fixed slot inner wall sliding connection has the movable block, and connects U type piece inner wall swing joint and have the connecting rod, one side fixedly connected with arc that the movable block was kept away from each other, and the arc outside is provided with a plurality of bosses. This expansion bolts for building wall sets up through the cooperation of threaded rod, thread piece, connecting rod, movable block, arc, enhancement tooth, and after accomplishing the bolt installation, remove to rotate the cross turning block again, makes the boss hug closely in the pore wall, can further improve the reliability of bolt fastening, has avoided singly to have taken place not hard up problem by a thin iron sheet inflation fixed, takes place easily.

Description

Expansion bolt for building wall

Technical Field

The utility model relates to a bolt technical field specifically is an expansion bolt for building wall.

Background

An expansion bolt is a special part for fixing pipeline branch/hanger/bracket or equipment on wall, upper and column, and when it is used, firstly, a hole with correspondent size is drilled on the fixing body by using impact electric drill (hammer), then the bolt and expansion tube are placed in the hole, and screwed, so that the bolt, expansion tube, mounting component and fixing body can be expanded into one body. The expansion bolt can be referred to patent numbers: 202011165810.4, the existing expansion bolt is fixed by a thin iron sheet in an expansion mode, so that the reliability is poor, and the iron sheet is easy to damage and break under long-term use or impact of external force, so that the expansion bolt is loosened, and the expansion bolt loses the fixing effect.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model discloses not enough to prior art, the utility model provides an expansion bolt for building wall possesses the reliability height, long service life, installs more stable advantage, has solved the fixed point single, and easy harm causes not hard up, the poor problem of reliability.

(II) technical scheme

In order to realize the purpose, the following technical scheme is provided: the utility model provides an expansion bolts for building wall, includes the screw rod, and screw rod outside threaded connection has the nut, and the screw rod outside just is located the screw thread right side and is provided with the paster, and the screw rod outside is provided with expansion assembly, and the screw rod bottom outside begins to have the fixed slot of symmetry, and the fixed slot is called symmetric distribution with the screw rod central point, and the screw rod is inside to be provided with strengthens the subassembly.

Strengthen the subassembly and include the threaded rod, the thread piece, the connecting rod, the movable block, the arc, the boss, the inside movable mounting of screw rod has the threaded rod, threaded rod right-hand member outside threaded connection has the thread piece, fixed slot inner wall sliding connection has the movable block, one side that the movable block is close to each other all is provided with the one side of being connected U type piece with the thread piece is kept away from each other, and connect U type piece inner wall swing joint has the connecting rod, one side fixedly connected with arc that the movable block was kept away from each other, the arc outside is provided with a plurality of bosses, the threaded rod rotates, the thread piece removes, the connecting rod can drive the movable block and slide, and the movable block is then in sliding connection and the fixed slot, the connecting rod can roll over the state and stretch out, let the boss hug closely at the pore wall.

Preferably, expansion unit includes the collets, spread groove, inflation piece, antiskid tooth, and screw rod outside movable mounting has the collets, and spread groove has been seted up at collets right side edge, and spread groove inner wall swing joint has the connecting block, and connecting block outside fixedly connected with inflation piece, and the inflation piece outside is provided with a plurality of antiskid teeth, struts when the inflation piece, and the outside antiskid tooth of inflation piece can closely laminate with the pore wall.

Preferably, the screw rod outside just is located set block left side fixedly connected with fixed block, screw rod right-hand member outside fixedly connected with circular cone piece, and the surperficial inclined plane of circular cone piece sets up with the inclined plane of inflation piece bottom correspondingly, and the circular cone piece can extrude the inflation piece, can strut the inflation piece.

Preferably, the left end of the screw rod is movably connected with a cross rotating block, the right side of the cross rotating block is fixedly connected with the left end of the threaded rod, and the threaded rod can be driven to rotate through the cross rotating block.

Preferably, the thread of the threaded rod is provided with an outer surface positioned on the right side of the conical block.

(III) advantageous effects

Compared with the prior art, the utility model provides an expansion bolt for building wall possesses following beneficial effect:

1. this expansion bolts for building wall sets up through the cooperation of threaded rod, thread piece, connecting rod, movable block, arc, enhancement tooth, and after accomplishing the bolt installation, remove to rotate the cross turning block again, makes the boss hug closely in the pore wall, can further improve the reliability of bolt fastening, has avoided singly to have taken place not hard up problem by a thin iron sheet inflation fixed, takes place easily.

2. This expansion bolts for building wall sets up through the cooperation of nut, paster, nest block, spread groove, inflation piece, antiskid tooth for the inflation piece struts, and the outside antiskid tooth of inflation piece can closely laminate with the pore wall, the stability of reinforcing bolt installation.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is an enlarged schematic view of the area a in fig. 2 according to the present invention.

In the figure: 1. a screw; 2. a nut; 3. pasting a piece; 4. an expansion assembly; 401. sleeving blocks; 402. connecting grooves; 403. an expansion sheet; 404. anti-slip teeth; 5. a conical block; 6. fixing grooves; 7. a reinforcement assembly; 701. A threaded rod; 702. a thread block; 703. a connecting rod; 704. a moving block; 705. an arc-shaped plate; 706. A reinforcing tooth; 8. a cross turning block; 9. and (5) fixing blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work fall within the scope of protection.

Example 1:

referring to fig. 1-3, an expansion bolt for building wall, including screw rod 1, screw rod 1 outside threaded connection has nut 2, the screw rod 1 outside just is located the screw thread right side and is provided with paster 3, the screw rod 1 outside is provided with expansion assembly 4, screw rod 1 bottom outside begins to have symmetrical fixed slot 6, screw rod 1 is inside to be provided with reinforcing assembly 7, reinforcing assembly 7 includes threaded rod 701, threaded block 702, connecting rod 703, movable block 704, arc 705, reinforcing block 706, threaded block 702 is connected to screw rod 701 right-hand member outside threaded connection, fixed slot 6 inner wall sliding connection has movable block 704, one side that movable block 704 is close to each other and one side that threaded block 702 keeps away from each other all are provided with the connection U type piece, and connect U type piece inner wall swing joint has connecting rod 703, one side fixedly connected with arc 705 that movable block 704 keeps away from each other, the arc 705 outside is provided with a plurality of reinforcing blocks 706, screw rod 1 left end swing joint has cross turning block 8, cross turning block 8 right side and threaded rod 701 left end fixed connection, the screw thread of screw 701 are seted up the surface that is located circular cone 5 right side, fixed slot 6 is called the symmetric distribution with screw rod 1 central point.

The working principle is as follows: when the installation, it rotates cross turning block 8 with the help of the instrument and drives the threaded rod and rotate, it can rotate to make the screw thread piece rather than threaded connection on the threaded rod remove to get the screw thread, the screw thread piece is in decurrent removal, can drive the connecting rod and remove, the movable block is then in sliding connection and the fixed slot, the connecting rod can be rolled over the state of pasting and stretched out, thereby can be ejecting the movable block to the outside, and the movable block can drive the arc and press close to on the pore wall, and outside boss can hug closely on the pore wall, thereby can strengthen the fixed of bolt, further improve the reliability of bolt fastening, it is fixed to have avoided singly leaning on a thinner iron sheet inflation, take place not hard up problem easily.

Example 2:

referring to fig. 1 and 2, the expansion assembly 4 includes a sleeve block 401, a connecting groove 402, an expansion piece 403, an anti-slip tooth 404, the sleeve block 401 is movably mounted on the outer side of the screw 1, the connecting groove 402 is formed in the edge of the right side of the sleeve block 401, a connecting block is movably connected to the inner wall of the connecting groove 402, the expansion piece 403 is fixedly connected to the outer side of the connecting block, a plurality of anti-slip teeth 404 are arranged on the outer side of the expansion piece 403, a fixing block 9 is fixedly connected to the outer side of the screw 1 and located on the left side of the sleeve block 401, a conical block 5 is fixedly connected to the outer side of the right end of the screw 1, and a surface inclined plane of the conical block 5 corresponds to an inclined plane at the bottom of the expansion piece 403

The working principle is as follows: after the bolt is installed into the hole, the nut is rotated by means of tools, the paster can be limited on the wall, along with the rotation of the nut, the screw rod can move outwards, the screw rod can drive the conical block to move outwards, the conical block can extrude the expansion sheet, and the expansion sheet can be propped open, so that the anti-skidding teeth outside the expansion sheet can be tightly attached to the hole wall.

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 (6)

1. The utility model provides an expansion bolts for building wall, includes screw rod (1), its characterized in that: the screw rod (1) outside threaded connection has nut (2), the screw rod (1) outside just is located the screw thread right side and is provided with paster (3), the screw rod (1) outside is provided with expansion block (4), screw rod (1) bottom outside begins to have fixed slot (6) of symmetry, fixed slot (6) are called the symmetric distribution with screw rod (1) central point, screw rod (1) inside is provided with and strengthens subassembly (7).

2. The expansion bolt for building wall according to claim 1, wherein: the reinforcing component (7) comprises a threaded rod (701), a threaded block (702), a connecting rod (703), a movable block (704), an arc-shaped plate (705) and a reinforcing block (706), the threaded rod (701) is movably mounted inside the threaded rod (1), the threaded block (702) is connected to the outer side of the right end of the threaded rod (701) in a threaded mode, the movable block (704) is connected to the inner wall of the fixing groove (6) in a sliding mode, a connecting U-shaped block is arranged on one side, close to each other, of the movable block (704) and one side, away from each other, of the threaded block (702), a connecting rod (703) is movably connected to the inner wall of the connecting U-shaped block, the arc-shaped plate (705) is fixedly connected to one side, away from each other, of the movable block (704), and the reinforcing blocks (706) are arranged on the outer side of the arc-shaped plate (705).

3. The expansion bolt for building wall according to claim 1, wherein: expansion unit (4) are including set piece (401), connecting groove (402), expansion piece (403), antiskid tooth (404), screw rod (1) outside movable mounting has set piece (401), connecting groove (402) have been seted up at set piece (401) right side edge, connecting groove (402) inner wall swing joint has the connecting block, just connecting block outside fixedly connected with expansion piece (403), the expansion piece (403) outside is provided with a plurality of antiskid tooth (404).

4. The expansion bolt for building wall according to claim 1, wherein: the screw rod (1) outside just is located cover piece (401) left side fixedly connected with fixed block (9), screw rod (1) right-hand member outside fixedly connected with circular cone piece (5), the inclined plane of the surface of circular cone piece (5) and the inclined plane of inflation piece (403) bottom set up correspondingly.

5. The expansion bolt for building wall according to claim 1, wherein: the left end of the screw rod (1) is movably connected with a cross rotating block (8), and the right side of the cross rotating block (8) is fixedly connected with the left end of the threaded rod (701).

6. The expansion bolt for building wall according to claim 2, wherein: the thread of the threaded rod (701) is provided with an outer surface positioned on the right side of the conical block (5).

Images