CN204357123U - A kind of Novel water-stop bolt - Google Patents

Abstract

The utility model discloses a new type of water-stop bolt, which comprises a sleeve, an expanding head is arranged on the circumference of both ends of the sleeve, and a revolving joint is threaded at the two ends of the sleeve respectively. A water-stop sheet is installed in the middle of the casing, a water-swellable water-stop material is built in the middle of the casing, and a sealing head is sealed in the casing at both ends of the water-swellable water-stop material. The utility model has the advantages of simple structure, material saving, convenient disassembly and installation, labor saving, shortened construction man-hours, saved construction costs, and enables the reuse of the originally expensive disposable reinforced threaded rods.

Description

A new type of water-stop bolt

technical field

The utility model relates to a water-stop bolt used for underground waterproof structures in the construction industry.

Background technique

The Chinese patent with the patent number CN201110266378.2 discloses a "returnable water-stop bolt", which includes a bolt body. The bolt body is composed of a middle part and an end part. External threads are provided at both ends of the middle part, and the end part It can be threadedly connected with the middle part, a pad is provided on the side of the end part close to the middle part, and a T-shaped thread is provided on the side of the end part away from the pad. The main part of the water-stop bolt is a solid iron piece, and the amount of steel used is larger than that of the hollow casing.

The Chinese patent with the patent number CN201220189416.9 discloses a "new double-pull waterstop bolt rod", which includes a threaded screw rod, a rubber waterstop ring, a steel waterstop ring, round steel and a steel inner wire sleeve. The round steel is the main part, and the whole is a φ12 round steel structure. In the center of the round steel, there is a steel water stop ring. At both ends of the round steel, there are connected screws with wires, which are set on the screw with wires. A steel inner wire sleeve is provided, and a rubber water stop ring is arranged on the outer end of the steel inner wire sleeve. The main part of the water-stop bolt is round steel of φ12, and the amount of steel used is larger than that of the hollow casing.

The Chinese patent with the patent number CN201320572026.4 discloses "a multi-functional wall-penetrating water-stop bolt", which includes an inner support tube and axial screws located at both ends of the inner support rod, and the inner support tube and the axial screw screw Threaded connection, a water-stop ring is set in the middle of the inner support tube, a support groove is provided on the inner support tube, the inside of the support groove is filled with water-stop expansion rubber, and the two ends of the inner support tube An external pressure nut sleeve is provided respectively, and a mountain nut and a butterfly buckle are sleeved on the shaft-rotating screw rod. There is only a kind of water-stop measure of water-stop expansion rubber in the water-stop bolt rod pipe. It is easy to cause groundwater to leak from the inside of the water-stop bolt; in addition, the water-stop ring mentioned by the water-stop bolt is an expanded rubber water-stop ring. The outer wall of the pipe leaks.

Contents of the invention

The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a new type of water-stop bolt with convenient post-processing, simple installation and disassembly of formwork, and guaranteed engineering quality.

The technical scheme of the utility model is:

A new type of water-stop bolt, which includes a sleeve, an enlarged head is arranged on the circumference of both ends of the sleeve, and a revolving joint is threaded at both ends of the sleeve. A water-stop sheet is installed in the middle of the tube, a water-swellable water-stop material is built in the middle of the casing, and a head is sealed in the casing at both ends of the water-swellable water-stop material.

Compared with the prior art, the utility model has the following advantages:

1. The water stop effect is good, the amount of steel is less, and the material is saved.

2. The water-stop screw does not need cement support or cement pad, which is convenient for construction and saves labor.

3. During the disassembly process of the screw, first remove the screw outside the wall (the screws inside and outside the wall are connected by screws and can be easily disassembled with a wrench). At this time, the formwork has no resistance, so it can be easily disassembled. The simple operation saves time and effort, and the formwork has zero loss. It can increase the turnover times of templates and save templates.

4. The screw does not need gas cutting at all, no emission and no pollution.

5. After the formwork is removed, the wall is flat and the overall visual effect of the building is good. Conducive to later construction.

To sum up, the structure is simple, material is saved, disassembly and installation are convenient and labor-saving, construction time is shortened, construction cost is saved, and the originally expensive disposable steel threaded rod can be reused.

Description of drawings

Fig. 1 is the structural representation of a kind of novel water-stop bolt of the present utility model;

Fig. 2 is a schematic diagram of connection of the water stop bolt shown in Fig. 1 .

Fig. 3 is a schematic diagram of the utility model's new waterstop bolt supporting the formwork of the basement exterior wall.

Detailed ways

The utility model is described in detail below in conjunction with accompanying drawing and specific embodiment.

As shown in the accompanying drawings, the new waterstop bolt includes a sleeve 3, and an enlarged head 2 is arranged on the circumference of both ends of the sleeve 3, and the two ends of the sleeve 3 are threaded respectively. Connected with a turnover joint 1, a water-stop sheet 4 is installed in the middle of the casing 3, and a water-swellable water-stop material 5 is built in the middle of the casing 3, and a water-swellable water-stop material 5 is built between the two sides of the water-swellable water-stop material. The casing 3 at the end is sealed with a head 6, which completely separates the water-swellable water-stop material from the outside world. When the head 6 leaks, the water-swellable water-stop material plays the role of secondary water .

The usage method of this water stop bolt is as follows:

When in use, place the water-stop bolt in the formwork, use the expansion head 2 to withstand the inside of the formwork, cooperate with the turnover joint 1, the formwork main flute (steel pipe) 7 and the formwork secondary flute (wooden square) 8 to fix the formwork 9, and then pour Concrete, after pouring the concrete, unscrew the turnover joint 1, and circulate it for the next construction. After the formwork is removed, the water-stop bolts remain in the concrete, the inside of the casing is sealed with a head 6 and water-swellable material 5 for water-stop, and the outside uses a water-stop piece 4 welded to the casing to tightly stop water.

Claims (1)

1. A new type of water-stop bolt, which includes a sleeve, an enlarged head is arranged on the circumference of both ends of the sleeve, and a revolving joint is threaded at the two ends of the sleeve respectively. A water-stop sheet is installed in the middle of the casing, and it is characterized in that: a water-swellable water-stop material is built in the middle of the casing, and a head is sealed in the casing at both ends of the water-swellable water-stop material.