PCCP (prestressed concrete cylinder pipe) capable of being assembled and stacked

Abstract

The utility model discloses a PCCP (prestressed concrete cylinder pipe) capable of being assembled and stacked. The utility model has the beneficial effects that through the matched design of the guide groove, the guide table, the limiting hole and the limiting component, when two adjacent PCCPs are spliced, the pull cover can be pulled outwards firstly, so that the limiting column is pulled away from the slot, and then the upper insertion table of one PCCP is stably inserted into the upper slot of the other PCCP under the matching of the guide table and the guide groove, so that the splicing of the two adjacent PCCPs is realized. After the insertion tables are inserted into the corresponding insertion grooves, the limiting columns can be rebounded back into the limiting holes in the guide tables under the action of the springs only by loosening the pull covers, so that the two adjacent PCCPs can be rapidly limited in the assembling process, and due to the fact that the tedious operation of relative rotation of the two PCCPs is omitted in the assembling and stacking mode, the assembling efficiency is improved, and the assembling cost is reduced. And therefore, the assembling and stacking efficiency of the two adjacent PCCPs is improved, and efficient assembling, stacking and using of the PCCPs are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of PCCP pipe technology, specifically to a PCCP pipe that can be assembled and stacked. Background Technology

[0002] PCCP pipe is short for prestressed concrete steel cylinder pipe, a type of pipeline used for transporting water, gas, and other liquids. It consists of three parts: an outer steel cylinder, prestressed concrete, and an inner steel lining, possessing high compressive strength and corrosion resistance.

[0003] Existing PCCP pipes mainly consist of an inner concrete layer, an inner steel cylinder installed on the outside of the inner concrete layer, an outer concrete layer installed on the outside of the inner steel cylinder, a threaded groove reserved at one end of the inner steel cylinder, and a threaded ring reserved at the other end of the inner steel cylinder. When assembling and stacking two adjacent PCCP pipes, they are mainly connected by rotating the two PCCP pipes relative to each other. Since the PCCP pipe itself is relatively heavy, using the relative screwing method will result in low assembly and stacking efficiency between two adjacent PCCP pipes, which is not convenient for efficient assembly and stacking of PCCP pipes. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a PCCP tube that can be quickly connected and limited between two adjacent PCCP tubes by means of insertion and spring-back reset, and has high assembly and stacking efficiency, in light of the current state of the technology.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes an assemblable and stackable PCCP pipe, including an inner steel cylinder, an outer concrete layer installed on the outside of the inner steel cylinder, an inner concrete layer installed on the inside of the inner steel cylinder, a slot is opened at one end of the inner steel cylinder, four guide grooves are opened in a ring in the slot, an insertion platform is reserved at the other end of the inner steel cylinder, a guide platform is reserved on the outer wall of the insertion platform corresponding to the guide groove, a limit hole is opened on the guide platform, and a limit component is installed at one end of the outer concrete layer facing each of the guide grooves. The limit component includes an installation hole, a pull cap, a spring, and a limit post.

[0008] Furthermore, both the outer and inner concrete layers are cast and connected to the inner steel lining cylinder.

[0009] Furthermore, the inner steel cylinder is made of stainless steel, and the inner wall of the inner steel cylinder has a smooth structure.

[0010] Furthermore, the slot is a ring structure, and the size of the insertion platform matches the size of the slot; the insertion platform is also a ring structure.

[0011] Furthermore, the guide groove is located on the outer wall of the slot, and the size of the guide platform matches the size of the guide groove.

[0012] Furthermore, the limiting hole is formed on the guide platform, the limiting hole penetrates the guide platform, and the size of the limiting hole matches the size of the limiting post.

[0013] Furthermore, the limiting post penetrates the outer layer of concrete and slides with the outer layer of concrete, and one end of the limiting post extends into the slot.

[0014] Furthermore, the pull cap is welded to the end of the limiting post opposite to the slot, the mounting hole is opened on the outer layer of the concrete at the pull cap, one end of the spring is welded to the pull cap, the other end of the spring is inserted into the mounting hole, and the limiting post passes through the spring.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This invention features a guide groove pre-drilled in the slot on the inner steel cylinder and a guide platform pre-drilled on the insertion platform on the inner steel cylinder. A limiting hole is also provided on the guide platform, and a limiting component is installed on the outer concrete layer opposite the slot. This allows for the following assembly method: when assembling two adjacent PCCP pipes, the pull cap can be pulled outwards first, causing the limiting post to be pulled away from the slot. Then, with the cooperation of the guide platform and guide groove, the insertion platform on one PCCP pipe can be stably inserted into the slot on another PCCP pipe. After the insertion platform is inserted into the corresponding slot, simply releasing the pull cap allows the limiting post to spring back into the limiting hole on the guide platform under spring action. This achieves rapid limiting of adjacent PCCP pipes during assembly. Because this assembly and stacking method eliminates the cumbersome operation of rotating the two PCCP pipes relative to each other, the assembly and stacking efficiency between adjacent PCCP pipes is improved, facilitating the efficient assembly and stacking of PCCP pipes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an assemblable and stackable PCCP pipe according to the present invention;

[0019] Figure 2 This is a left view of a PCCP pipe that can be assembled and stacked according to this utility model;

[0020] Figure 3This is a front sectional view of an assemblable and stackable PCCP pipe according to this utility model;

[0021] Figure 4 This invention relates to a stackable PCCP pipe. Figure 3 Enlarged view of point A in the middle.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Slot; 2. Guide groove; 3. Inner concrete layer; 4. Inner steel cylinder lining; 5. Outer concrete layer; 6. Guide platform; 7. Insertion platform; 8. Limiting component; 801. Mounting hole; 802. Pull cover; 803. Spring; 804. Limiting post; 9. Limiting hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] like Figures 1-4 As shown, an assemblable and stackable PCCP pipe in this embodiment includes an inner steel cylinder 4, an outer concrete layer 5 installed on the outside of the inner steel cylinder 4, and an inner concrete layer 3 installed on the inside of the inner steel cylinder 4. One end of the inner steel cylinder 4 has a slot 1, and four guide grooves 2 are arranged in a ring within the slot 1. The other end of the inner steel cylinder 4 has a pre-reserved insertion platform 7. A guide platform 6 is pre-reserved on the outer wall of the insertion platform 7 corresponding to the guide grooves 2. Limiting holes 9 are provided on the guide platforms 6. A limiting component 8 is installed at one end of the outer concrete layer 5, directly opposite each guide groove 2. The limiting component 8 includes an installation hole 801, a pull cap 802, and a spring 803. And the limiting post 804, when two adjacent PCCP tubes are assembled, the pull cover 802 is pulled outward first, so that the limiting post 804 is pulled away from the slot 1. Then, with the cooperation of the guide table 6 and the guide groove 2, the insertion platform 7 on one PCCP tube is stably inserted into the slot 1 on the other PCCP tube. After the insertion platform 7 is inserted into the corresponding slot 1, the pull cover 802 is released, and the limiting post 804 is bounced back into the limiting hole 9 on the guide table 6 under the action of the spring 803, so as to realize the rapid limiting of two adjacent PCCP tubes during the assembly process, which facilitates the efficient assembly and stacking of PCCP tubes.

[0026] like Figures 1-4As shown, in this embodiment, both the outer concrete layer 5 and the inner concrete layer 3 are cast and connected to the inner steel cylinder 4. The outer concrete layer 5, the inner steel cylinder 4, and the inner concrete layer 3 constitute the main structure of the PCCP pipe. The inner steel cylinder 4 is made of stainless steel and has a smooth inner wall. The inner steel cylinder 4 has good corrosion resistance and support strength, thus enabling the PCCP pipe to have good structural strength. The slot 1 has a ring structure, and the size of the insertion platform 7 matches the size of the slot 1. The insertion platform 7 also has a ring structure, which can ensure convenient insertion of the insertion platform 7 on one PCCP pipe into the slot 1 on another PCCP pipe.

[0027] like Figures 1-4 As shown, in this embodiment, the guide groove 2 is located on the outer wall of the slot 1, the size of the guide platform 6 matches the size of the guide groove 2, the limiting hole 9 is formed on the guide platform 6, the limiting hole 9 penetrates the guide platform 6, and the size of the limiting hole 9 matches the size of the limiting post 804. After the limiting hole 9 and the limiting post 804 cooperate, the reliable limiting of two adjacent PCCP pipes after assembly can be achieved. Since the assembled PCCP generally needs to be pre-embedded and reinforced after the initial assembly, the elastic limiting action can ensure the initial limiting of two adjacent PCCP pipes after assembly, and will not affect the subsequent normal use of the PCCP pipes.

[0028] like Figures 1-4 As shown, in this embodiment, the limiting post 804 penetrates the outer concrete layer 5 and slides with it. One end of the limiting post 804 extends into the slot 1. The pull cap 802 is welded to the end of the limiting post 804 facing away from the slot 1. The mounting hole 801 is opened outside the outer concrete layer 5 at the pull cap 802. One end of the spring 803 is welded to the pull cap 802, and the other end of the spring 803 is inserted into the mounting hole 801. The limiting post 804 penetrates the spring 803. The spring 803 is mainly used to realize the automatic springback reset of the limiting post 804 after being pulled outwards. The pull cap 802 facilitates the convenient pulling outwards of the limiting post 804 when assembling two adjacent PCCP pipes.

[0029] The specific implementation process of this embodiment is as follows: When assembling two adjacent PCCP pipes, the pull cover 802 is pulled outward first, so that the limiting post 804 is pulled away from the slot 1. Then, with the cooperation of the guide table 6 and the guide groove 2, the insertion platform 7 of one PCCP pipe is stably inserted into the slot 1 of another PCCP pipe. After the insertion platform 7 is inserted into the corresponding slot 1, the pull cover 802 is released, and the limiting post 804 is bounced back into the limiting hole 9 on the guide table 6 under the action of the spring 803, so as to realize the rapid positioning of the two adjacent PCCP pipes during the assembly process. Since the cumbersome operation of rotating the two PCCP pipes relative to each other is eliminated in this assembly and stacking method, the assembly and stacking efficiency between the two adjacent PCCP pipes is improved, which facilitates the efficient assembly and stacking of PCCP pipes.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A PCCP pipe that can be assembled and stacked, characterized in that: The system includes an inner steel cylinder (4), an outer concrete layer (5) installed on the outside of the inner steel cylinder (4), an inner concrete layer (3) installed on the inside of the inner steel cylinder (4), a slot (1) opened at one end of the inner steel cylinder (4), four guide grooves (2) are opened in a ring shape in the slot (1), an insertion platform (7) is reserved at the other end of the inner steel cylinder (4), a guide platform (6) is reserved on the outer wall of the insertion platform (7) corresponding to the guide groove (2), a limit hole (9) is opened on the guide platform (6), and a limit component (8) is installed at one end of the outer concrete layer (5) facing each guide groove (2), the limit component (8) includes an installation hole (801), a pull cover (802), a spring (803) and a limit post (804).

2. The PCCP pipe that can be assembled and stacked according to claim 1, characterized in that: The outer concrete layer (5) and the inner concrete layer (3) are both cast and connected to the inner steel cylinder (4).

3. The PCCP pipe that can be assembled and stacked according to claim 1, characterized in that: The inner steel cylinder (4) is made of stainless steel, and the inner wall of the inner steel cylinder (4) has a smooth structure.

4. The PCCP pipe that can be assembled and stacked according to claim 1, characterized in that: The slot (1) is a ring structure, and the size of the insertion platform (7) matches the size of the slot (1). The insertion platform (7) is also a ring structure.

5. The PCCP pipe that can be assembled and stacked according to claim 1, characterized in that: The guide groove (2) is located on the outer wall of the slot (1), and the size of the guide platform (6) matches the size of the guide groove (2).

6. The PCCP pipe that can be assembled and stacked according to claim 5, characterized in that: The limiting hole (9) is formed on the guide platform (6), the limiting hole (9) penetrates the guide platform (6), and the size of the limiting hole (9) matches the size of the limiting post (804).

7. A PCCP pipe that can be assembled and stacked according to claim 6, characterized in that: The limiting post (804) penetrates the outer concrete layer (5) and slides with the outer concrete layer (5), and one end of the limiting post (804) extends into the slot (1).

8. The PCCP pipe that can be assembled and stacked according to claim 7, characterized in that: The pull cover (802) is welded to the end of the limiting post (804) opposite to the slot (1). The mounting hole (801) is opened outside the concrete outer layer (5) at the pull cover (802). One end of the spring (803) is welded to the pull cover (802), and the other end of the spring (803) is inserted into the mounting hole (801). The limiting post (804) passes through the spring (803).

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