HDPE plastic steel winding pipe convenient to connect

Abstract

The utility model relates to a high-density polyethylene (HDPE) plastic steel winding pipe convenient to connect, which aims at solving the technical problems that the connection of the current plastic steel winding pipe needs to consume a large amount of time and energy, and pseudo soldering is easy to occur, and comprises a first pipe body, a second pipe body and a connecting ring, the outer side of the first pipe body is sleeved with a first limiting ring, and the outer side of the second pipe body is sleeved with a second limiting ring. A first limiting ring sleeves the outer side of the first pipe body, a second limiting ring sleeves the outer side of the second pipe body, threaded clamping grooves are formed in the inner sides of the first limiting ring and the second limiting ring, first bolts penetrate through the two sides of one end of the first limiting ring, and first nuts sleeve the outer sides of the two first bolts in a threaded mode; second bolts penetrate through the two sides of one end of the second limiting ring, second nuts are arranged on the outer sides of the two second bolts in a threaded and sleeved mode, the first pipe body and the second pipe body are pulled to move in the opposite directions to be in mutual extrusion butt joint in the connecting ring, and then the connecting efficiency of the HDPE plastic steel winding pipe is improved.

Description

Technical Field

[0001] The utility model relates to the field of HDPE plastic-steel winding pipe connections, in particular to a HDPE plastic-steel winding pipe that is easy to connect. Background Art

[0002] HDPE plastic-steel spiral pipe is made from a steel-plastic composite strip that is spirally wound and welded (extrusion welding on the overlapped surfaces). Its inner wall is smooth and flat, and its specifications range from DN200 to DN2600mm. This pipe offers advantages such as corrosion resistance, lightweight, easy installation, high flow capacity, and a long service life (50 years). It is an environmentally friendly, green product that can replace pipes made from high-energy-consuming materials (cement, cast iron, fiberglass, and ceramic).

[0003] When installing existing HDPE plastic-steel wrapped pipes, adjacent plastic-steel wrapped pipes are usually connected by welding. However, due to the limitations of the construction environment, the connection of plastic-steel wrapped pipes requires a lot of time and effort, and it is also prone to cold welding. Therefore, a new technical solution needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to actual needs, and provide an HDPE plastic-steel winding pipe that is easy to connect, so as to solve the technical problems that the connection of the current plastic-steel winding pipe requires a lot of time and energy and is prone to cold welding.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: to design a HDPE plastic-steel wrapped pipe that is easy to connect, including a first tube body, a second tube body and a connecting ring, the outer side of the first tube body is sleeved with a first limiting ring, the outer side of the second tube body is sleeved with a second limiting ring, the inner sides of the first limiting ring and the second limiting ring are both provided with threaded grooves, first bolts are passed through both sides of one end of the first limiting ring, and the outer sides of the two first bolts are threadedly sleeved with first nuts, second bolts are passed through both sides of one end of the second limiting ring, and the outer sides of the two second bolts are threadedly sleeved with second nuts, and one end of the connecting ring is provided with two first through-holes and two second through-holes.

[0006] Preferably, a sealing ring is connected to the middle portion of the inner wall of the connecting ring, and sealing gaskets are fixedly connected to both ends of the sealing ring.

[0007] Preferably, an anti-slip pad is installed on the inner side of the threaded slot.

[0008] Preferably, the length of the first bolt is greater than the connection length between the first limiting ring and the connecting ring, and the length of the second bolt is greater than the connection length between the second limiting ring and the connecting ring.

[0009] Preferably, the size of the first nut and the size of the second nut are respectively larger than the diameters of the first through-hole and the second through-hole.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The utility model combines a first limiting ring, a second limiting ring, a first tube body, a second tube body, a first nut, a second nut, a first bolt, a second bolt, a first through-hole, a second through-hole and a threaded slot. First, the first limiting ring and the second limiting ring are rotated to cooperate with the threaded slot to be sleeved on the outside of the first tube body and the second tube body, and then the connecting ring is placed between the first tube body and the second tube body, and then the first bolt is passed through the first through-hole from one side of the connecting ring, and then the second bolt is passed through the second through-hole from the other side of the connecting ring, and then the first nut and the second nut are respectively screwed and connected with the first bolt and the second bolt, thereby pulling the first tube body and the second tube body toward each other and squeezing and docking with each other in the connecting ring, thereby improving the efficiency of the connection of the HDPE plastic-steel wrapped pipe.

[0012] 2. The utility model combines the sealing ring and the sealing gasket. When the first tube body and the second tube body move toward each other and dock in the connecting ring, the two ends of the first tube body and the second tube body are respectively squeezed on both sides of the sealing ring, thereby cooperating with the sealing gasket to increase the sealing performance of the contact between the sealing ring and the end faces of the first tube body and the second tube body, further improving the sealing effect of the connection between the first tube body and the second tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the pipe body connection of the utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure between the first limiting ring, the second limiting ring and the connecting ring of the utility model;

[0015] Figure 3 This is a schematic diagram of the connection structure between the connecting ring and the sealing ring of the utility model.

[0016] In the figure: 1. First tube body; 2. Second tube body; 3. First limiting ring; 31. First bolt; 32. First nut; 4. Second limiting ring; 41. Second bolt; 42. Second nut; 5. Connecting ring; 51. Sealing ring; 52. Sealing gasket; 53. First through-hole; 54. Second through-hole; 6. Threaded slot; 61. Anti-slip pad. DETAILED DESCRIPTION

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0018] Example 1: A HDPE plastic-steel spiral pipe that is easy to connect, see Figures 1 to 3, comprises a first tube body 1, a second tube body 2 and a connecting ring 5, the first tube body 1 and the second tube body 2 are HDPE plastic steel wrapped tubes, the outer side of the first tube body 1 is provided with a first limiting ring 3, the outer side of the second tube body 2 is provided with a second limiting ring 4, the inner sides of the first limiting ring 3 and the second limiting ring 4 are provided with a threaded groove, and the threaded groove is adapted to the outer sides of the first tube body 1 and the second tube body 2, one end of the first limiting ring 3 is penetrated by both sides of the first bolt 31, the outer sides of the two first bolts 31 are threadedly sleeved with a first nut 32, one end of the second limiting ring 4 is penetrated by both sides of the second bolt 41, the outer sides of the two second bolts 41 are threadedly sleeved with a second nut 42, one end of the connecting ring 5 is provided with two first through-holes 53 and two second through-holes 54, the length of the first bolt 31 is greater than the connection length of the first limiting ring 3 and the connecting ring 5, and the length of the second bolt 41 is greater than the connection length of the second limiting ring 4 and the connecting ring 5 The connection length is used to ensure that the first bolt 31 and the second bolt 41 can respectively pass through the first through-hole 53 and the second through-hole 54 and be placed on the other side of the connecting ring 5. The size of the first nut 32 and the second nut 42 are respectively larger than the diameter of the first through-hole 53 and the second through-hole 54. During operation, first rotate the first limiting ring 3 and the second limiting ring 4 to cooperate with the threaded slot 6 to be sleeved on the outside of the first tube body 1 and the second tube body 2 (equivalent to the nut being connected to the outside of the screw), and then place the connecting ring 5 between the first tube body 1 and the second tube body 2, and then pass the first bolt 31 through the first through-hole 53 from one side of the connecting ring 5, and then pass the second bolt 41 through the second through-hole 54 from the other side of the connecting ring 5, and then respectively tighten the first nut 32 and the second nut 42 to be threadedly connected with the first bolt 31 and the second bolt 41, thereby pulling the first tube body 1 and the second tube body 2 to move toward each other and squeeze and dock with each other in the connecting ring 5, thereby improving the efficiency of the HDPE plastic-steel wrapped pipe connection.

[0019] For details, see Figure 3 A sealing ring 51 is connected to the middle of the inner wall of the connecting ring 5, and sealing gaskets 52 are fixedly connected to both ends of the sealing ring 51, and the sealing gaskets 52 are elastic. The size of the sealing ring 51 is adapted to the thickness of the first tube body 1 and the second tube body 2. When the first tube body 1 and the second tube body 2 move toward each other and dock in the connecting ring 5, the two ends of the first tube body 1 and the second tube body 2 are respectively squeezed on both sides of the sealing ring 51, thereby cooperating with the sealing gasket 52 to increase the sealing performance of the contact between the sealing ring 51 and the end faces of the first tube body 1 and the second tube body 2, further improving the sealing effect of the connection between the first tube body 1 and the second tube body 2.

[0020] For further information, see Figure 2A non-slip pad 61 is installed on the inner side of the threaded slot, and the friction between the first limiting ring 3 and the second limiting ring 4 and the outer sides of the first tube body 1 and the second tube body 2 is increased through the protective pad, thereby improving the stability of the first limiting ring 3 and the second limiting ring 4 being respectively limited on the outer sides of the first tube body 1 and the second tube body 2.

[0021] In addition, the components designed in this utility model are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in this field. Needless to say, the content protected by this utility model does not involve improvements to internal structures and methods.

[0022] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A HDPE plastic-steel winding pipe that is easy to connect, comprising a first pipe body (1), a second pipe body (2) and a connecting ring (5), characterized in that: The outer side of the first tube body (1) is provided with a first limiting ring (3), and the outer side of the second tube body (2) is provided with a second limiting ring (4). The inner sides of the first limiting ring (3) and the second limiting ring (4) are provided with threaded grooves. First bolts (31) are passed through both sides of one end of the first limiting ring (3), and first nuts (32) are threadedly sleeved on the outer sides of the two first bolts (31). Second bolts (41) are passed through both sides of one end of the second limiting ring (4), and second nuts (42) are threadedly sleeved on the outer sides of the two second bolts (41). One end of the connecting ring (5) is provided with two first through holes (53) and two second through holes (54).

2. The HDPE plastic-steel spiral pipe that is easy to connect as claimed in claim 1, characterized in that: A sealing ring (51) is connected to the middle of the inner wall of the connecting ring (5), and sealing pads (52) are fixedly connected to both ends of the sealing ring (51).

3. The HDPE plastic-steel spiral pipe that is easy to connect as claimed in claim 1, characterized in that: An anti-slip pad (61) is installed on the inner side of the threaded slot.

4. The easy-to-connect HDPE plastic-steel spiral pipe according to claim 1, characterized in that: The length of the first bolt (31) is greater than the connection length between the first limiting ring (3) and the connecting ring (5), and the length of the second bolt (41) is greater than the connection length between the second limiting ring (4) and the connecting ring (5).

5. The HDPE plastic-steel spiral pipe that is easy to connect as claimed in claim 1, characterized in that: The size of the first nut (32) and the size of the second nut (42) are respectively larger than the diameters of the first through hole (53) and the second through hole (54).

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