Buried compression-resistant HPVC solid-wall pipe

Abstract

The utility model discloses a buried compression-resistant HPVC solid-wall pipe which comprises an HPVC solid-wall pipe body and four front foot supports symmetrically fixed at one end of the surface of the HPVC solid-wall pipe body, a rear foot support located on the same horizontal line with the front foot supports is installed at the other end of the surface of the HPVC solid-wall pipe body, and a symmetrical pipe column reinforcing structure is installed between the front foot supports and the rear foot support. An external thread expanding pipe is integrally formed at one end of the surface of the HPVC solid wall pipe body. According to the utility model, the degree of freedom of the HPVC solid-wall pipe body during underground bending is reduced, and the symmetrical pipe column reinforcing structure effectively inhibits the deflection and deformation of the pipeline, so that the shape stability of the pipeline under the action of various external loads can be ensured, the stress concentration generated at the bending part of the pipeline is reduced, and the service life of the pipeline is favorably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipes, in particular to a buried compression-resistant HPVC solid wall pipe. Background Technique

[0002] As an important part of the underground drainage, water supply and industrial pipe systems, the buried HPVC solid wall pipe undertakes key functions and responsibilities. Its main functions include the safe discharge of urban sewage and rainwater, serving as a non-toxic drinking water pipe, and transporting various chemicals and media in the industrial field. Its structure is well-designed, and the key components include high-molecular polyvinyl chloride resin as the material basis, ensuring excellent chemical stability and corrosion resistance. The pipe wall is thick and uniform, capable of withstanding the challenges of internal and external pressures and soil forces, thus ensuring the stability and safety of the pipe during long-term buried use. The connection method adopts rubber sealing rings and sleeve connections, which are simple and efficient, ensuring the sealing and anti-permeability of the connection points;

[0003] As disclosed in a HPVC solid wall pipe with the authorization announcement number CN206377360U, which includes a main body. A sunscreen layer and an anti-corrosion layer are coated on the main body. Protrusions are provided on the main body, and 4 rope-passing holes are provided on the protrusions. The main body includes an outer pipe layer, an inner pipe layer and an intermediate column. Triangular support ribs are provided between the outer pipe layer and the inner pipe layer. A sound insulation layer is also provided between the outer pipe layer and the inner pipe layer. The sound insulation layer is sound insulation cotton particles of different sizes. Through holes are provided on the inner pipe layer. The design of the protrusions at both ends of the main body is used to prevent the rolling of the pipe body during handling and installation and improve the compressive strength; it plays a supporting role for the pipe body, effectively avoiding the direct contact between the pipe body and the ground. However, in the process of using this technical solution, the pipe body is mainly supported by the protrusions at both ends of the pipe body. It can still play an effective supporting role when the pipe length is short. However, the HPVC pipe itself has a certain flexibility, and long-distance bending will cause a change in the overall shape of the pipe, making the protrusion supports at both ends of the pipe unable to effectively maintain the straightness and stability of the pipe, resulting in excessive stress concentration in some parts of the pipe, increasing the risk of pipe rupture or leakage. Content of the Utility Model

[0004] The purpose of the utility model is to provide a buried compression-resistant HPVC solid wall pipe, in which front foot supports and rear foot supports are respectively installed at both ends of the pipe, and a straight-mouth cross arm and a hollow pipe column for preventing the deflection deformation of the HPVC solid wall pipe are installed between the front foot supports and the rear foot supports, so as to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions: a buried compression-resistant HPVC solid wall pipe, including an HPVC solid wall pipe body and four front foot supports symmetrically fixed at one end of the surface of the HPVC solid wall pipe body. A rear foot support is installed at the other end of the surface of the HPVC solid wall pipe body on the same horizontal line as the front foot supports. A symmetric pipe column strengthening structure is installed between the front foot supports and the rear foot supports. An externally threaded enlarged diameter pipe is integrally formed at one end of the surface of the HPVC solid wall pipe body, and an internally threaded pipe head for threaded connection with the externally threaded enlarged diameter pipe is rotatably installed at the other end of the surface of the HPVC solid wall pipe body.

[0006] Preferably, two symmetric U-shaped ear feet are integrally formed at both ends of the surface of the HPVC solid wall pipe body.

[0007] Preferably, a dovetail-shaped annular flange is installed on the inner wall of the internally threaded pipe head, and a dovetail-shaped annular cut groove is provided on the annular outer wall of the HPVC solid wall pipe body near the internally threaded pipe head. The dovetail-shaped annular flange and the dovetail-shaped annular cut groove are in sliding fit.

[0008] Preferably, two symmetric convex seats are integrally formed on the outer walls of the front foot supports and the rear foot supports away from each other.

[0009] Preferably, through holes coaxial with each other are provided inside the two convex seats.

[0010] Preferably, the symmetric pipe column strengthening structure is a straight-mouth type cross arm fixed between the front foot supports and the rear foot supports, and hollow pipe columns fixed between the front foot supports and the rear foot supports above and below the straight-mouth type cross arm.

[0011] Preferably, a solid column for inserting into the hollow pipe column is fixed on the outer wall of the rear foot support near the internally threaded pipe head, and the inner diameter of the hollow pipe column is equal to the outer diameter of the solid column.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The buried compression-resistant HPVC solid wall pipe has structures such as... cooperating with each other. The rear foot supports and the front foot supports also play a role in supporting and bearing at the ends of the HPVC solid wall pipe body, thereby reducing the degree of freedom of the HPVC solid wall pipe body when bending underground. The symmetric pipe column strengthening structure effectively inhibits the deflection and deformation of the pipeline. It can ensure that the pipeline maintains a stable shape under various external loads, reduce the stress concentration generated at the bending parts of the pipeline, and contribute to extending the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic three-dimensional structure of the present utility model Figure 1 ;

[0014] Figure 2The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 It is a side view structural schematic diagram of the utility model;

[0016] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0017] Figure 5 It is a schematic diagram of the three-dimensional assembly structure of the utility model.

[0018] In the figure: 1. HPVC solid wall pipe body; 101. dovetail type annular groove; 102. U-shaped ear foot; 2. internal thread pipe head; 201. dovetail type annular flange; 3. external thread expansion pipe; 4. front foot support; 401. convex seat; 402. through hole; 5. rear foot support; 6. straight mouth cross arm; 7. hollow pipe column; 8. solid column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1-5 The utility model provides an embodiment: an underground compression-resistant HPVC solid wall pipe, comprising an HPVC solid wall pipe body 1 and four front foot supports 4 symmetrically fixed at one end of the surface of the HPVC solid wall pipe body 1, a rear foot support 5 on the same horizontal line as the front foot support 4 is installed at the other end of the surface of the HPVC solid wall pipe body 1, a symmetrical pipe column reinforcement structure is installed between the front foot support 4 and the rear foot support 5, an external thread expansion pipe 3 is integrally formed at one end of the surface of the HPVC solid wall pipe body 1, and an internal thread pipe head 2 for threaded connection with the external thread expansion pipe 3 is rotatably installed at the other end of the surface of the HPVC solid wall pipe body 1;

[0021] The symmetrical pipe column reinforcement structure is a straight-mouth cross arm 6 fixed between the front foot support 4 and the rear foot support 5, and a hollow pipe column 7 fixed between the front foot support 4 and the rear foot support 5 above and below the straight-mouth cross arm 6. The straight-mouth cross arm 6 and the hollow pipe column 7 strengthen the flexibility and deformation resistance of the pipeline, effectively prevent the deformation of the pipeline at the bend, and can also disperse the stress of the pipeline body, reduce the adverse effect of deflection on the pipeline, and maintain the overall stability of the pipeline;

[0022] On one side of the rear footrest 5 close to the inner threaded pipe head 2, a solid column 8 for plugging into the hollow pipe column 7 is fixed. The inner diameter of the hollow pipe column 7 is equal to the outer diameter of the solid column 8. After the two HPVC solid wall pipe bodies 1 are connected at the head and tail, the solid column 8 fixed at one end of the rear footrest 5 close to the inner threaded pipe head 2 will be concentrically plugged into the hollow pipe column 7, which can enhance the stability of the connection between pipes. Especially when the pipe system is affected by external forces and underground environments, it can effectively prevent the connection from loosening or shifting due to external forces;

[0023] The solid column 8 supports at the joint of the two pipes. By dispersing the stress, it reduces the local stress concentration phenomenon at the joint, which helps to extend the service life of the inner threaded pipe head 2, the outer threaded enlarged pipe 3, and the HPVC solid wall pipe body 1;

[0024] At both ends of the surface of the HPVC solid wall pipe body 1, two symmetric U-shaped ear feet 102 are integrally formed. The design of the U-shaped ear feet 102 forms a strong structural connection at both ends of the pipe, which can effectively enhance the overall structural strength of the pipe;

[0025] A dovetail-shaped annular flange 201 is installed on the inner wall of the inner threaded pipe head 2. A dovetail-shaped annular groove 101 is provided on the annular outer wall of the HPVC solid wall pipe body 1 close to the inner threaded pipe head 2. The dovetail-shaped annular flange 201 and the dovetail-shaped annular groove 101 are in sliding fit. When the head and tail ends of two adjacent HPVC solid wall pipe bodies 1 are connected, the staff makes the inner threaded pipe heads 2 and the outer threaded enlarged pipes 3 at the head and tail ends of the adjacent two connect, and makes the inner threaded pipe head 2 initially sleeve the outer threaded enlarged pipe 3. After that, the staff continuously screws the inner threaded pipe head 2 to make the outer threaded enlarged pipe 3 and the inner threaded pipe head 2 be threadedly connected until the inner threaded pipe head 2 and the outer threaded enlarged pipe 3 are connected in place. At this time, the connection of the head and tail ends between the two HPVC solid wall pipe bodies 1 is completed, which is convenient for the staff to carry out on-site installation and connection;

[0026] On the outer walls of the front footrest 4 and the rear footrest 5 away from each other, two symmetric convex seats 401 are integrally formed. Through holes 402 coaxial with each other are opened inside the two convex seats 401, and steel columns can be driven into the through holes 402 so that the HPVC solid wall pipe body 1 can be stably buried in the ground.

[0027] When the embodiment of the present application is in use, first, four rear footrests 5 and four front footrests 4 that are equally spaced and opposite to each other are respectively installed at both ends of the surface of the HPVC solid-wall pipe body 1. At the same time, a straight-mouth cross arm 6 and two hollow pipe columns 7 are installed between the rear footrests 5 and the front footrests 4 on the same horizontal line. The two hollow pipe columns 7 are located above and below the straight-mouth cross arm 6. At this time, the straight-mouth cross arm 6 and the hollow pipe columns 7 prevent the HPVC solid-wall pipe body 1 from deflecting and deforming. Moreover, when the HPVC solid-wall pipe body 1 is buried underground, the rear footrests 5 and the front footrests 4 also play a role in supporting and holding at the ends of the HPVC solid-wall pipe body 1, thereby reducing the degree of freedom of the HPVC solid-wall pipe body 1 when bending underground, effectively suppressing the deflection and deformation of the pipeline. It can ensure that the pipeline maintains a stable shape under various external loads, reduce the stress concentration generated at the bending part of the pipeline, and help extend the service life of the pipeline.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. Buried compression-resistant HPVC solid wall pipe, characterized by: The invention comprises an HPVC solid wall pipe body (1) and four front foot supports (4) symmetrically fixed at one end of the surface of the HPVC solid wall pipe body (1); a rear foot support (5) on the same horizontal line as the front foot support (4) is installed at the other end of the surface of the HPVC solid wall pipe body (1); a symmetrical pipe column reinforcement structure is installed between the front foot support (4) and the rear foot support (5); an external thread expansion pipe (3) is integrally formed at one end of the surface of the HPVC solid wall pipe body (1); and an internal thread pipe head (2) for threaded connection with the external thread expansion pipe (3) is rotatably installed at the other end of the surface of the HPVC solid wall pipe body (1).

2. The buried compression-resistant HPVC solid wall pipe according to claim 1 is characterized in that: Two symmetrical U-shaped ears (102) are integrally formed at both ends of the surface of the HPVC solid wall pipe body (1).

3. The buried compression-resistant HPVC solid wall pipe according to claim 1 is characterized in that: A dovetail annular flange (201) is installed on the inner wall of the internally threaded pipe head (2), and a dovetail annular groove (101) is provided on the annular outer wall of one end of the HPVC solid wall pipe body (1) close to the internally threaded pipe head (2), and the dovetail annular flange (201) and the dovetail annular groove (101) are slidably matched.

4. The buried compression-resistant HPVC solid wall pipe according to claim 1 is characterized in that: Two symmetrical convex seats (401) are integrally formed on the outer walls of the front foot support (4) and the rear foot support (5) on a side away from each other.

5. The buried compression-resistant HPVC solid wall pipe according to claim 4 is characterized in that: A coaxial through hole (402) is formed inside the two convex seats (401).

6. The buried compression-resistant HPVC solid wall pipe according to claim 1, characterized in that: The symmetrical tube column reinforcement structure comprises a straight-mouthed cross arm (6) fixed between the front foot support (4) and the rear foot support (5), and a hollow tube column (7) fixed between the front foot support (4) and the rear foot support (5) above and below the straight-mouthed cross arm (6).

7. The buried compression-resistant HPVC solid wall pipe according to claim 6 is characterized in that: A solid column (8) for plugging into the hollow pipe column (7) is fixed on the outer wall of one side of the rear foot support (5) close to the internally threaded pipe head (2), and the inner diameter of the hollow pipe column (7) is equal to the outer diameter of the solid column (8).

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