CN209509193U - A kind of triplex type water expandable waterstop - Google Patents

Abstract

The utility model discloses a three-composite water-swellable water-stop strip, which comprises a first article and a second article, and is characterized in that: the first article and the second article are both three-layer composite structures, and the first article The middle layer of the article and the second article is a fixed layer, the upper surface and the lower surface of the middle layer of the first article and the second article are compounded with a waterproof layer, and the port of the fixed layer is a staggered dislocation structure, and the The fixing layers on the first article and the second article are bonded by mortise and tenon, and the end surface of the water-stop layer and the inner wall at the port are provided with an adhesive surface. The utility model is suitable for water-stopping between construction joints. The water-stopping belt has strong toughness, and the two water-stopping belts are conveniently connected, and at the same time, the water-stopping performance does not decrease at the joint.

Description

A three-composite water-swellable water-stop strip

technical field

The utility model belongs to the technical field of water-stop strips, in particular to a three-composite water-swellable water-stop strip.

Background technique

The water stop strip is made of polymer inorganic water-absorbing swelling material and rubber. It is used to prevent leakage in the construction joints of various underground construction projects, water conservancy projects, traffic tunnel projects, power plant cooling towers, municipal water supply and drainage, etc. Material;

Most of the existing waterstops are one-piece structures, which are cut according to the length of the actual construction joints, and a section of waterstops left after cutting is generally connected to another integral waterstop by direct bonding. One section of the strip will easily lead to the lower connection of the joint and the decline of the water-stop performance, and the existing water-stop strips have poor toughness and are easy to break, which is difficult to meet people's needs.

Utility model content

The purpose of the utility model is to provide a three-composite water-swellable water-stop strip in order to solve the problems in the background technology.

The technical scheme that the utility model adopts is as follows:

A three-composite water-swellable water-stop strip, comprising a first article and a second article, both of the first article and the second article have a three-layer composite structure, and the middle layer of the first article and the second article is The fixed layer, the upper surface and the lower surface of the middle layer of the first article and the second article are compounded with a waterproof layer, the port of the fixed layer is a staggered dislocation structure, the first article and the second article The fixed layer is bonded by mortise and tenon, and the end face of the water-stop layer and the inner wall at the port are provided with a bonding surface.

Wherein, the port of the fixed layer is coated with an adhesive.

Wherein, the first item and the second item are water strips.

Wherein, the width of the bonding surface is the same as that of the first item and the second item.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. In the present utility model, the waterstop is composed of a fixed layer and a waterstop layer compounded on the upper surface and the lower surface of the fixed layer. This three-layer composite structure can greatly improve the waterstop performance of the waterstop strip. Performance, and the toughness of the waterstop strip is greatly improved due to the setting of the fixed layer.

2. In the utility model, the fixed layer port of the waterstop is a staggered dislocation structure. When two waterstops are connected, the strength of the joint can be effectively guaranteed by connecting the three layers one by one. The joints are bonded by mortise and tenon, which makes the connection between the two fixed layers tighter and effectively prevents the defect that the waterproof performance of the joint is reduced.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the utility model;

Fig. 2 is a top view of the joint of the fixed layer in the utility model.

Marks in the figure: 1. Fixed layer; 2. Water-stop layer; 3. First item; 4. Adhesive surface; 5. Second item.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Referring to Figure 1-2, a three-composite water-swellable water-stop strip includes a first item 3 and a second item 5, both of which are three-layer composite structures, the first item 3 and the second item 5 The middle layer of the second article 5 is a fixed layer 1, and the upper surface and the lower surface of the middle layer of the first article 3 and the second article 5 are compounded with a waterproof layer 2. This three-layer composite structure can greatly improve the The water-stop performance of the water-stop strip, and the toughness of the water-stop strip is greatly improved due to the setting of the fixed layer 1;

The port of the fixed layer 1 is a staggered structure. The fixed layer 1 on the first article 3 and the second article 5 is bonded by tenon and tenon. The port of 1 is coated with adhesive, the first article 3 and the second article 5 are water-stop strips, and the width of the adhesive surface 4 is the same as the width of the first article 3 and the second article 5. Such a connection method makes the first When the item 3 and the second item 5 are connected, the inner fixed layer 1 is connected first, and the outer water-stop layer 2 is connected later, and the single-layer combined connection greatly improves the tightness of the connection, effectively The water-stop performance of the joint of the water-stop belt is guaranteed.

Working principle, referring to Figure 1-2, when using the waterstop, when two waterstops need to be combined and connected, firstly connect the waterstop layer 2 at the connection end of the first item 3 and the second item 5 Tear apart, the length of the tear is twice the width of the first item 3 and the second item 5, and then connect the fixing layers 1 on the first item 3 and the second item 5 with tenon and tenon joints, and apply adhesive on the joint , and then apply an adhesive on the adhesive surface 4 of the inner wall of the torn water-stop layer 2 and the end surface, press down the torn water-stop layer 2 to make it adhere to the fixed layer 1, and continue to attach the first article 3 and Pressure is applied to the joint of the second article 5 until the adhesive takes effect, and the combined connection of the waterstop is completed.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (4)

1. A three-composite water-swellable water-stop strip, comprising a first item (3) and a second item (5), characterized in that: the first item (3) and the second item (5) are both Three-layer composite structure, the middle layer of the first article (3) and the second article (5) is a fixed layer (1), and the upper surface of the middle layer of the first article (3) and the second article (5) A water-stop layer (2) is combined with the lower surface, the port of the fixed layer (1) is a staggered dislocation structure, and the fixed layer (1) on the first article (3) and the second article (5) Through mortise and tenon bonding, the end surface of the water-stop layer (2) and the inner wall at the port are provided with an adhesive surface (4). 2. A three-composite water-swellable water-stop strip according to claim 1, characterized in that: the port of the fixing layer (1) is coated with an adhesive. 3. A three-composite water-swellable water-stop strip according to claim 1, characterized in that: the first article (3) and the second article (5) are water-stop strips. 4. A three-composite water-swellable water-stop strip according to claim 1, characterized in that: the width of the adhesive surface (4) is the same as that of the first item (3) and the second item (5) of the same width.