Novel self-leveling expansion bolt

Abstract

The novel self-leveling expansion bolt comprises a sleeve, a nut, an upper gasket, a lower gasket, a leveling piece and a bolt column, the upper end of the bolt column is provided with threads, a plurality of clamping groove holes are formed in the sleeve, the sleeve is arranged on the bolt column in a sleeved mode, the threads at the upper end of the bolt column are exposed out of the sleeve, and the nut is arranged in the clamping groove holes. The lower gasket, the upper gasket and the nut are sequentially arranged on the exposed portion of the thread at the upper end of the bolt column, the leveling piece is used for being inserted into a clamping groove hole formed in the sleeve, compared with an existing leveling bolt, leveling is carried out through the leveling piece, the structure is more stable, the phenomenon that the nut is loosened is avoided, and the service life of the leveling bolt is prolonged. And the later mounting plane is more stable and smoother.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a novel self-leveling expansion bolt. Background Art

[0002] Existing expansion bolts used at home and abroad basically drill holes on the foundation plane first, then tighten the nuts to fix the products. However, there are disadvantages: it is difficult to quickly construct on uneven engineering surfaces. It is necessary to add hard objects to the uneven or gapped positions on the construction surface, adjust the horizontal plane, and then tighten the nuts. However, this method will affect the overall levelness, and the fixed products are prone to shaking during use.

[0003] In order to solve the above problems, a self-leveling expansion screw with patent number: CN212775100U is disclosed, which comprises a nut, a spring washer, a flat washer, a sleeve, a leveling nut and a bolt. The upper end of the sleeve is threaded, and the lower end is provided with three holes, and the three holes are equidistantly arranged around the sleeve. The holes are provided with a groove extending downward to the bottom end of the sleeve. The top end of the bolt is threaded, and the leveling nut is arranged on the thread of the sleeve. The bolt is sleeved in the sleeve, and is sequentially provided with a spring washer and a flat washer, and a nut is arranged on the thread of the bolt.

[0004] By setting threads on the pipe sleeve, the horizontality is first adjusted and fixed by the leveling nut according to the angle of the construction surface and the gap during the nailing stage, and then the product is fixed. There is no need to add hard objects, which can quickly and conveniently solve the construction problems caused by the uneven construction surface. However, this method is difficult for workers to adjust, and the nut leveling method may slip later, resulting in an unbalanced leveling installation surface. Utility Model Content

[0005] The utility model aims to provide a novel self-leveling expansion bolt.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0007] A new self-leveling expansion bolt, the bolt comprises a sleeve, a nut, an upper washer, a lower washer, a leveling plate and a bolt column, the upper end of the bolt column is threaded, the sleeve is provided with a plurality of slot holes, the sleeve is sleeved on the bolt column, the upper end of the thread of the bolt column is exposed outside the sleeve, the exposed part of the upper end of the thread of the bolt column is sequentially provided with a lower washer, an upper washer and a nut, and the leveling plate is used to be inserted into the slot holes opened on the sleeve.

[0008] Preferably, three holes are formed at the lower end of the sleeve, and the three holes are equidistantly arranged around the sleeve, and each of the holes is formed with a groove extending downward to the lower end of the sleeve.

[0009] Preferably, the sleeve is provided with a plurality of slot holes, the slot holes are arranged at equal distances and are marked with scales.

[0010] Preferably, the diameter of the lower gasket is larger than the cross-sectional diameter of the sleeve.

[0011] Preferably, the length of the threaded section of the bolt column is one third of the total length.

[0012] After the installation position is determined, the utility model uses a tool to face the installation position, uses a paintbrush to draw the position of the hole, and then uses an electric drill or an impact drill to drill a hole at the designated position for the drawn position. The utility model is driven into the drilled hole, and after being driven in, it is clamped in through a leveling piece to form a plane to ensure the driving degree of the bolt. The driving degree of the bolt can be adjusted horizontally so that the installation surface is on a plane. The product is fixed and installed through nuts, upper washers, and lower washers. The overall structure is simple and easy to use.

[0013] Compared with the existing leveling bolts, the utility model uses the leveling sheet to perform leveling, is more stable in structure, avoids the phenomenon of nut loosening, and makes the later installation plane more stable and flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is the front view of the utility model.

[0016] Figure 3 It is the AA cross-sectional view of the present utility model. DETAILED DESCRIPTION

[0017] The utility model is described in detail below with reference to the accompanying drawings.

[0018] like Figure 1-3 As shown, a new type of self-leveling expansion bolt, the bolt includes a sleeve 1, a nut 2, an upper washer 3, a lower washer 4, a leveling piece 5 and a bolt column 6, the upper end of the bolt column 6 is threaded, the sleeve 1 is provided with a plurality of slot holes 7, the sleeve 1 is sleeved on the bolt column 6, the upper end of the bolt column 6 is exposed outside the sleeve 1, the exposed part of the upper end of the bolt column 6 is sequentially provided with a lower washer 4, an upper washer 3 and a nut 2, and the leveling piece 5 is used to be inserted into the slot hole 7 opened on the sleeve 1.

[0019] Preferably, three holes are formed at the lower end of the sleeve 1 , and the three holes are equidistantly arranged around the sleeve 1 , and each of the holes is formed with a groove extending downward to the lower end of the sleeve 1 .

[0020] Preferably, the sleeve 1 is provided with a plurality of slot holes 7 , which are equidistantly arranged and marked with scales.

[0021] Preferably, the diameter of the lower gasket 4 is larger than the cross-sectional diameter of the sleeve 1 .

[0022] Preferably, the length of the threaded section of the bolt column 6 is one third of the total length.

[0023] After the utility model determines the installation position, a tool is used to face the installation position, and after using a paintbrush to draw the position of the hole, an electric drill or an impact drill is used to drill a hole at the designated position for the drawn position. The utility model is driven into the drilled hole, and after being driven in, it is clamped in through the leveling piece 5 to form a plane to ensure the driving degree of the bolt. The driving degree of the bolt can be adjusted horizontally so that the installation surface is on a plane. The product is fixedly installed through the nut 2, the upper washer 3, and the lower washer 4. The overall structure is simple and easy to use.

[0024] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the utility model are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the utility model, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A new self-leveling expansion bolt, characterized in that: The bolt comprises a sleeve, a nut, an upper washer, a lower washer, a leveling sheet and a bolt column; The upper end of the bolt column is threaded, and the sleeve is provided with a plurality of slot holes; The sleeve is sleeved on the bolt column, and the thread on the upper end of the bolt column is exposed outside the sleeve; The exposed threaded portion of the upper end of the bolt column is provided with a lower washer, an upper washer and a nut in sequence; The leveling piece is used for being inserted into the slot hole opened on the sleeve.

2. A novel self-leveling expansion bolt according to claim 1, characterized in that: The lower end of the sleeve is provided with three holes, which are equidistantly arranged around the sleeve, and each of the holes is provided with a groove extending downward to the lower end of the sleeve.

3. The novel self-leveling expansion bolt according to claim 1 is characterized in that: The sleeve is provided with a plurality of slot holes, which are arranged at equal distances and marked with scales.

4. The novel self-leveling expansion bolt according to claim 1 is characterized in that: The diameter of the lower gasket is greater than the cross-sectional diameter of the sleeve.

5. The novel self-leveling expansion bolt according to claim 1 is characterized in that: The length of the threaded section of the bolt column is one third of the total length.

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