CN214424856U - Novel sleeve type expansion anchor bolt - Google Patents

Abstract

The utility model discloses a novel sleeve type expansion anchor bolt, which belongs to the technical field of anchor bolt fasteners, and adopts the technical proposal that the sleeve type expansion anchor bolt comprises a sleeve body, three through grooves are arranged to ensure that the sleeve body has enough strength and is easy to expand and is convenient to produce and process, an arc clamping piece is used for stretching outwards along the expansion end head at the right end of a screw rod to be in contact with the expansion end head, thereby effectively controlling the anchor bolt to rotate during construction, the friction force between the sleeve body and a fixed body can be increased through a plurality of annular grooves and annular convex rings, the tightness of the expansion anchor bolt is further improved, the friction force between the sleeve body and concrete is effectively enhanced through a plurality of anti-skid blocks, and the stability of an anchoring object is further realized, the novel sleeve type expansion anchor bolt can increase the friction force between the expansion sleeve and the fixed body when in use, the stability of the anchoring object is enhanced, and the problem that the expansion anchor bolt rotates in the expansion anchoring process is avoided.

Description

Novel sleeve type expansion anchor bolt

Technical Field

The utility model relates to an crab-bolt fastener technical field, in particular to novel bushing type expansion anchor.

Background

As is well known, an expansion anchor is a common threaded fastener used for fixedly mounting a pipeline, a bracket or equipment on a fixed body such as a wall, a floor or a column, and the expansion anchor in the market at present mainly comprises an anchor body and an expansion sleeve sleeved on the anchor body.

However, the existing expansion anchor bolt is limited by the structure of the expansion sleeve, so that the friction force generated between the expansion sleeve and the concrete is limited, and finally, the anchoring object is unstable and the fastening effect is poor.

Disclosure of Invention

The utility model provides a novel bushing type expansion anchor aims at solving owing to receive expansion sleeve's structural constraint, causes the frictional force that produces between expansion sleeve and the concrete limited, finally leads to the anchor object unstable, fastens the poor problem of effect.

The utility model discloses a realize like this, a novel bushing type expansion anchor bolt, the screw rod comprises a screw rod, the outer wall of screw rod has cup jointed the sleeve pipe body, the inflation end is installed on the right side of sleeve pipe body, the sleeve pipe body is close to the one end of inflation end and has seted up three logical groove, it is three to lead to the groove and be axial distribution along the sleeve pipe body, it forms a plurality of arc clamping pieces to lead to the groove to evenly cut apart the right-hand member of sleeve pipe body, a plurality of evenly distributed's annular groove and annular protruding circle are seted up to the outer wall of sleeve pipe body, and are a plurality of annular groove and annular protruding circle all are located the left side of arc clamping piece, and are a plurality of annular groove and annular protruding circle are the alternating distribution.

In order to prevent that the crab-bolt is outside or the rotation appears in the concrete in arc clamping piece when the construction, the utility model discloses a novel bushing type expansion anchor is preferred, and is a plurality of the three lugs of not uniform size of outer wall difference fixedly connected with of arc clamping piece.

In order to strengthen the frictional force of sleeve pipe body and concrete, and then realized the stability of anchor object, the utility model discloses a novel sleeve pipe expansion anchor is preferred, and is a plurality of the non slipping spur of the equal a plurality of evenly distributed of fixedly connected with of outer wall of cyclic annular protruding circle, it is a plurality of the non slipping spur is the semicircle arcuation.

In order to guarantee the normal work of crab-bolt, the utility model discloses a novel bushing type expansion anchor is preferred, the external screw thread has been seted up in the left side of screw rod, spring washer has been cup jointed to the outer wall of screw rod and has been located the plain washer on spring washer right side, the left end outer wall threaded connection of screw rod has the nut.

In order to increase the frictional force between sleeve pipe body and the fixed body, strengthen the fastness of anchor object, the utility model discloses a novel bushing type expansion anchor is preferred, and is a plurality of the lug is triangular pyramid shape, the equal fixedly connected with fixed block in upper and lower both sides of sleeve pipe body outer wall.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the novel sleeve type expansion anchor bolt, the sleeve body can be guaranteed to have enough strength and be easy to expand and meanwhile be convenient to produce and process by arranging the three through grooves, the arc-shaped clamping pieces are outwards expanded to form a circular arc surface along the expansion end at the right end of the screw rod and are contacted with the expansion end, so that the anchor bolt is effectively controlled to rotate during construction, the friction force between the sleeve body and the fixed body can be increased by the aid of the annular grooves and the annular convex rings, and the tightness of the expansion anchor bolt is further improved;

2. according to the novel sleeve type expansion anchor bolt, the friction force between the sleeve body and concrete is effectively enhanced through the plurality of anti-skidding blocks, and the stability of an anchoring object is further realized;

to sum up, this kind of novel bushing type expansion anchor has realized that expansion anchor can increase the frictional force between expansion sleeve and the fixed body when using, strengthens the stability of anchor object, avoids expansion anchor to take place rotatory problem at expansion anchor in-process.

Drawings

Fig. 1 is an overall structure diagram of a novel sleeve type expansion anchor bolt of the present invention;

fig. 2 is a structural diagram of the annular groove and the annular convex ring of the present invention.

In the figure, 1, a screw; 101. an external thread; 2. a sleeve body; 201. an annular groove; 202. an annular convex ring; 203. anti-skid blocks; 3. an arc-shaped clamping piece; 301. a through groove; 302. a bump; 4. a nut; 401. a spring washer; 402. a flat washer; 5. an expansion tip; 6. and (5) fixing blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a novel bushing type expansion anchor bolt, including screw rod 1, sleeve pipe body 2 has been cup jointed to screw rod 1's outer wall, inflation end 5 is installed on sleeve pipe body 2's right side, sleeve pipe body 2 is close to the one end of inflation end 5 and has been seted up three logical groove 301, three logical groove 301 is axial distribution along sleeve pipe body 2, three logical groove 301 is with a plurality of arc clamping pieces 3 of right-hand member evenly divided formation of sleeve pipe body 2, a plurality of evenly distributed's annular groove 201 and annular protruding circle 202 are seted up to sleeve pipe body 2's outer wall, a plurality of annular groove 201 and annular protruding circle 202 all are located the left side of arc clamping piece 3, a plurality of annular groove 201 and annular protruding circle 202 are the alternate distribution.

In this embodiment: can guarantee through setting up three logical groove 301 that sleeve pipe body 2 is convenient for production and processing again when having sufficient intensity and easy inflation, outwards be circular cambered surface and open and the contact of inflation end 5 through arc clamping piece 3 along the inflation end 5 of screw rod 1 right-hand member to rotation appears in the effective control crab-bolt when the construction, can increase the frictional force between sleeve pipe body 2 and the fixed body through a plurality of annular groove 201 and annular bulge loop 202, further improve the fastening nature of inflation crab-bolt.

As a technical optimization scheme of the utility model, the outer wall of a plurality of arc clamping pieces 3 is the three lug 302 of different sizes of fixedly connected with respectively.

In this embodiment: the arc-shaped clip 3 can be prevented from rotating outwards or automatically in concrete during construction of the anchor bolt through the convex block 302, and the expansion of the arc-shaped clip 3 is facilitated.

As a technical optimization scheme of the utility model, the non slipping spur 203 of a plurality of evenly distributed of the equal fixedly connected with of outer wall of a plurality of cyclic annular protruding circle 202, a plurality of non slipping spurs 203 are the semicircle arcuation.

In this embodiment: the friction force between the sleeve body 2 and the concrete is effectively enhanced through the plurality of anti-slip blocks 203, and then the stability of anchoring objects is realized.

As a technical optimization scheme of the utility model, external screw thread 101 has been seted up in screw rod 1's left side, and spring washer 401 has been cup jointed to screw rod 1's outer wall and is located flat packing ring 402 on spring washer 401 right side, and screw rod 1's left end outer wall threaded connection has nut 4.

In this embodiment: the sleeve body 2 is fixed by rotating the nut 4, and the arc-shaped jaws 3 are expanded by the spring washer 401 and the flat washer 402 to ensure the normal operation of the anchor bolt.

As a technical optimization scheme of the utility model, a plurality of lugs 302 are triangular pyramid shape, the equal fixedly connected with fixed block 6 in upper and lower both sides of 2 outer walls of sleeve pipe body.

In this embodiment: being triangular pyramid shape through a plurality of lugs 302, can preventing that the crab-bolt is outside or the rotation appears in the concrete in arc clamping piece 3 when the construction, through the frictional force between the multiplicable sleeve pipe body 2 of fixed block 6 and the fixed body, the fastness of reinforcing anchor object.

The working principle is as follows: can guarantee sleeve pipe body 2 through setting up three logical groove 301 and be convenient for production and processing again when having sufficient intensity and easy inflation, it opens and contacts with inflation end 5 outwards to be circular cambered surface along the inflation end 5 of screw rod 1 right-hand member through arc clamping piece 3, thereby rotation appears when the construction in the effective control crab-bolt, can increase the frictional force between sleeve pipe body 2 and the fixed body through a plurality of annular groove 201 and cyclic annular bulge loop 202, further improve the fastening nature of expansion crab-bolt, the frictional force of sleeve pipe body 2 with the concrete has effectively been strengthened through a plurality of non slipping spur 203, and then the stability of anchor object has been realized, can prevent that arc clamping piece 3 outwards or rotation appears in the concrete when the crab-bolt is under construction through lug 302, easily arc clamping piece 3's inflation.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. A novel sleeve type expansion anchor bolt comprises a screw rod (1) and is characterized in that: the outer wall of screw rod (1) has cup jointed sleeve pipe body (2), inflation end (5) are installed on the right side of sleeve pipe body (2), sleeve pipe body (2) are close to the one end of inflation end (5) and have been seted up three and have been led to groove (301) and be axial distribution, three along sleeve pipe body (2) lead to groove (301) and evenly divide the right-hand member of sleeve pipe body (2) and form a plurality of arc clamping pieces (3), the outer wall of sleeve pipe body (2) is seted up a plurality of evenly distributed's annular groove (201) and annular bulge loop (202), and is a plurality of annular groove (201) and annular bulge loop (202) all are located the left side of arc clamping piece (3), and are a plurality of annular groove (201) and annular bulge loop (202) are the distribution of alternating.

2. The telescopic expansion anchor as claimed in claim 1, wherein: the outer walls of the arc-shaped clamping pieces (3) are fixedly connected with three convex blocks (302) with different sizes respectively.

3. The telescopic expansion anchor as claimed in claim 1, wherein: the outer wall of the annular convex rings (202) is fixedly connected with a plurality of evenly distributed anti-skidding blocks (203), and the anti-skidding blocks (203) are in a semicircular arc shape.

4. The telescopic expansion anchor as claimed in claim 1, wherein: the left side of the screw rod (1) is provided with an external thread (101), the outer wall of the screw rod (1) is sleeved with a spring washer (401) and a flat washer (402) positioned on the right side of the spring washer (401), and the outer wall of the left end of the screw rod (1) is in threaded connection with a nut (4).

5. The telescopic expansion anchor as set forth in claim 2, wherein: a plurality of the convex blocks (302) are in a triangular pyramid shape, and the upper side and the lower side of the outer wall of the sleeve body (2) are fixedly connected with fixing blocks (6).

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