CN210216494U - Anchor bolt sealing sleeve - Google Patents

Abstract

The utility model provides an crab-bolt seal cover, it including: an opening portion and a sealing portion. The opening part is provided with a first cavity, and one end of the opening part is an opening end. The sealing portion with the other end of opening is connected, the sealing portion has the second cavity, first cavity with the second cavity is linked together, be equipped with the internal thread that is used for connecting the crab-bolt on the inner wall of sealing portion, the internal diameter of first cavity is greater than the internal diameter of second cavity. Internal thread in the sealing portion can reliably be connected with the crab-bolt for the crab-bolt seal cover has played the effect of fixed cover PVC pipe on the crab-bolt, prevents to take place to shift at installation crab-bolt in-process PVC pipe.

Description

Anchor bolt sealing sleeve

Technical Field

The utility model relates to an crab-bolt seal cover.

Background

Along with the continuous increase of wind turbine generator system model, for the joint strength who improves pylon basis and flange, each fan host computer producer has released the crab-bolt cage structure in succession to replace original basic ring structure. The anchor bolt cage consists of an upper anchor plate, a lower anchor plate, an anchor bolt assembly and a lower anchor plate supporting piece. For anchor bolt assemblies, in addition to ensuring mechanical properties, corrosion protection is another very important criterion. In order to prevent water, rainwater and the like from corroding the anchor bolt during concrete pouring, the anchor bolt is subjected to anticorrosion protection by adopting a heat shrinkable tube, a PVC (polyvinyl chloride) tube and the like. The original design is as follows: a section of PVC pipe is sleeved on the anchor bolt, then a unthreaded hole protective cap is sleeved on the end part of the anchor bolt, and the PVC pipe is inserted into the protective cap, so that the sealing performance of the exposed section of the anchor bolt is ensured. Although the sealing effect is considered in the original design, in the actual use process, when workers install anchor bolts, the PVC pipes are always upwards displaced, and the installation is difficult.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the aversion can take place for the PVC pipe on overcoming prior art on the crab-bolt, leads to the defect of installation difficulty, provides one kind and ensures that the PVC pipe on the crab-bolt can not take place the crab-bolt seal cover of aversion.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the anchor bolt sealing sleeve is characterized by comprising:

an opening part having a first cavity, one end of the opening part being an open end;

the sealing, the sealing with the other end of opening is connected, the sealing has the second cavity, first cavity with the second cavity is linked together, be equipped with the internal thread that is used for connecting the crab-bolt on the inner wall of sealing, the internal diameter of first cavity is greater than the internal diameter of second cavity.

Preferably, the anchor bolt seal sleeve further comprises a seal ring, a seal groove is formed in the inner wall of the opening portion, and the seal ring is located in the seal groove.

Preferably, be equipped with many in the sealing, along the arch of axial extension, many the arch is along circumference equipartition, the internal thread is located many protruding.

Preferably, the number of the protrusions is 4.

Preferably, the anchor bolt sealing sleeve is made of plastic.

Preferably, the axial length of the internal thread is 1 to 1.5 pitches.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: internal thread in the sealing portion can reliably be connected with the crab-bolt for the crab-bolt seal cover has played the effect of fixed cover PVC pipe on the crab-bolt, prevents to take place to shift at installation crab-bolt in-process PVC pipe.

Drawings

Figure 1 is a partial cross-sectional view of an anchor gland in accordance with a preferred embodiment of the present invention.

Fig. 2 is a bottom view of the anchor seal cartridge in a preferred embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the anchor bolt sealing sleeve connected with the PVC pipe and the anchor bolt in the preferred embodiment of the present invention.

Description of reference numerals:

opening part 100

First cavity 110

Open end 120

Sealing part 200

Second cavity 210

Internal thread 220

Sealing groove 230

Projection 240

Sealing ring 300

PVC pipe 400

Anchor bolt 500

Detailed Description

The present invention will be more clearly and completely described below with reference to the accompanying drawings.

Fig. 1 and 2 show an anchor gland comprising: an opening 100 and a sealing 200. The opening portion 100 has a first cavity 110, and one end of the opening portion 100 is an opening end 120. The sealing part 200 is connected to the other end of the opening part 100, the sealing part 200 has a second cavity 210, the first cavity 110 is communicated with the second cavity 210, an inner thread 220 for connecting the anchor bolt 500 is provided on the inner wall of the sealing part 200, and the inner diameter of the first cavity 110 is larger than that of the second cavity 210.

As shown in fig. 3, when sealing the anchor 500 with the anchor gland: firstly overlap PVC pipe 400 on the section that exposes of crab-bolt 500 from the tip of crab-bolt 500 along the axial, then with the open end 120 of crab-bolt seal cover towards the tip of crab-bolt 500, overlap the crab-bolt seal cover in the tip of crab-bolt 500, the tip of crab-bolt 500 passes first cavity 110 and gets into second cavity 210 this moment, PVC pipe 400 inserts in first cavity 110, then rotatory crab-bolt seal cover, with crab-bolt seal cover and crab-bolt 500 threaded connection. The anchor gland functions to secure the PVC pipe 400 and prevent the PVC pipe 400 from shifting during installation of the anchor 500.

In order to ensure that the anchor sealing sleeve and the PVC pipe 400 can perform a good sealing function, the anchor sealing sleeve further includes a sealing ring 300, a sealing groove 230 is formed on an inner wall of the opening portion 100, and the sealing ring 300 is located in the sealing groove 230. When the PVC pipe 400 is inserted into the first cavity 110, the sealing ring 300 abuts against the outer surface of the PVC pipe 400, thereby ensuring that water cannot enter the anchor gland and the PVC pipe 400.

In order to reduce the processing difficulty of the internal thread 220 of the anchor bolt sealing sleeve, a plurality of protrusions 240 extending along the axial direction are arranged in the sealing part 200, the plurality of protrusions 240 are uniformly distributed along the circumferential direction, and the internal thread 220 is located on the plurality of protrusions 240. In this case, the number of the protrusions 240 is 4. In order to facilitate screwing of the anchor bolt sealing sleeve, the thread precision of 6G increased by 0.3mm is selected, and the anchor bolt sealing sleeve can be easily screwed by hand.

In this embodiment, the material of crab-bolt seal cover is plastics. The plastic material is cheap and easy to be injection molded, and can not generate rust.

The axial length of the internal thread 220 in this embodiment is 1 to 1.5 pitches. By adopting the shorter thread length, the load which can be borne by the thread can be ensured to be less than or equal to 20kN, and the thread part can be smoothly pulled off when the anchor bolt 500 is tensioned at the later stage, so that any influence is not generated on the stress of the anchor bolt 500.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims (6)

1. The utility model provides an crab-bolt seal cover which characterized in that, it is including:

an opening part having a first cavity, one end of the opening part being an open end;

the sealing, the sealing with the other end of opening is connected, the sealing has the second cavity, first cavity with the second cavity is linked together, be equipped with the internal thread that is used for connecting the crab-bolt on the inner wall of sealing, the internal diameter of first cavity is greater than the internal diameter of second cavity.

2. The anchor-sealing gland according to claim 1, wherein said anchor-sealing gland further comprises a sealing ring, a sealing groove is provided on the inner wall of said opening portion, said sealing ring being located in said sealing groove.

3. The anchor bolt sealing sleeve according to claim 1, wherein a plurality of axially extending protrusions are provided in the sealing portion, the plurality of protrusions are circumferentially and uniformly distributed, and the internal thread is provided on the plurality of protrusions.

4. An anchor-sealing sleeve as claimed in claim 3, wherein the number of said projections is 4.

5. An anchor-sealing sleeve as claimed in claim 3, characterized in that the material of the anchor-sealing sleeve is plastic.

6. An anchor-sealing sleeve as claimed in claim 5, characterized in that the axial length of said internal thread is 1 to 1.5 thread pitches.

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