Three-folding type plugging head for PE (Poly Ethylene) pipe

Abstract

The utility model provides a three-folding type plugging head for a PE (polyethylene) pipe, which comprises a guide frame, an integrated vulcanized leather cup is nested at the bottom of the guide frame, a hinge is fixed at the bottom of the integrated vulcanized leather cup, and a pressing plate is embedded in the integrated vulcanized leather cup. The three-folding type plugging leather cup and the pressing plate are vulcanized into a whole, the dovetail groove is additionally formed in the joint, so that the strength and the sealing performance of the plugging leather cup are improved, the overall strength of the device is effectively improved, the leather cup is not prone to turning over to lose the plugging effect under the condition that the plugging force is large, and the service life of the device is prolonged. And the safety performance of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline maintenance equipment, in particular to a three-fold plugging head for PE pipes. Background Art

[0002] With the continuous improvement of people's living standards, there is an increasing demand for water. Water needs to be transported by water pipes. Water pipes are water supply pipes. Modern decoration water pipes are all constructed by buried wall type. Water pipes can be divided into metal pipes, plastic-coated metal pipes and PE pipes. PE pipes are widely used. At present, in domestic natural gas, water heating and other non-stop transmission, sealing and wiring construction projects, many will use plugging heads to seal PE pipes. However, in the process of sealing PE pipes with existing plugging heads, it is very easy to cause the leather cup to flip under high sealing force and lose its sealing effect, thereby resulting in the risk of sealing failure and poor sealing effect. Utility Model Content

[0003] The purpose of the utility model is to solve the problems existing in the above-mentioned background technology, and to propose a three-fold plugging head for PE pipes.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A three-fold plugging head for a PE pipe comprises a guide frame, an integral vulcanized leather cup is nested at the bottom of the guide frame, a hinge is fixed to the bottom of the integral vulcanized leather cup, and a pressure plate is embedded in the interior of the integral vulcanized leather cup.

[0006] Preferably, the inner wall opening of the one-piece vulcanized leather cup is provided with a dovetail groove, and the outer side of the pressure plate fits in the dovetail groove of the inner wall of the one-piece vulcanized leather cup.

[0007] Preferably, the bottom screw of the guide frame passes through the pressure plate and is connected between the integral vulcanized leather cup and the hinge.

[0008] The utility model vulcanizes the three-fold sealing head scalp cup and the pressure plate into one body, and adds a dovetail groove at the joint to increase the strength and sealing of the sealing leather cup, effectively improving the overall strength of the device. The leather cup is not easy to flip over and lose its sealing effect when the sealing is subjected to a large force, further improving the safety performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a front view of the overall structure of the present invention;

[0010] Figure 2 This is a schematic diagram of the partial structure of the integrated vulcanized leather cup in the present utility model.

[0011] Legend:

[0012] Guide frame 1, integrated vulcanized leather cup 2, hinge 3, pressure plate 4. DETAILED DESCRIPTION

[0013] Example 1, with reference to Figure 1-2 A three-fold plugging head for PE pipe includes a guide frame 1, an integrated vulcanized leather cup 2 is nested at the bottom of the guide frame 1, a hinge 3 is fixed to the bottom of the integrated vulcanized leather cup 2, and a pressure plate 4 is embedded inside the integrated vulcanized leather cup 2.

[0014] The inner wall opening of the integrated vulcanized leather cup 2 is provided with a dovetail groove, and the outer side of the pressure plate 4 fits in the dovetail groove of the inner wall of the integrated vulcanized leather cup 2;

[0015] When the outer side of the pressure plate 4 is embedded in the dovetail groove on the inner wall of the integral vulcanized leather cup 2 , the sealing between the integral vulcanized leather cup 2 and the pressure plate 4 is further improved.

[0016] Example 2: Example 2 differs from Example 1 in that, in this example, the bottom screw of the guide frame 1 passes through the pressing plate 4 and connects the integral vulcanized leather cup 2 and the hinge 3;

[0017] After the pressure plate 4 is embedded in the upper part of the integrated vulcanized leather cup 2, the guide frame 1 is connected to the pressure plate 4 hinge 3 by bolts to form a whole, which further increases the strength of the device and can effectively prevent the device from failing to seal during the sealing process.

[0018] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A three-fold plugging head for PE pipe, comprising a guide frame (1), characterized in that: An integrated vulcanized leather cup (2) is nested at the bottom of the guide frame (1), a hinge (3) is fixed to the bottom of the integrated vulcanized leather cup (2), and a pressure plate (4) is embedded inside the integrated vulcanized leather cup (2).

2. The three-fold plug for PE pipe according to claim 1, characterized in that: The inner wall opening of the one-piece vulcanized leather cup (2) is provided with a dovetail groove, and the outer side of the pressure plate (4) fits into the dovetail groove of the inner wall of the one-piece vulcanized leather cup (2).

3. The three-fold plug for PE pipe according to claim 1, characterized in that: The bottom screw of the guide frame (1) passes through the pressure plate (4) and is connected between the integral vulcanized leather cup (2) and the hinge (3).

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