Jacking pipe connecting structure and jacking pipe assembly

Abstract

The utility model belongs to the technical field of pipe jacking construction, and discloses a pipe jacking connecting structure and a pipe jacking assembly. The jacking pipe connecting structure comprises a first jacking pipe connector, a second jacking pipe connector and a heating device, the first jacking pipe connector comprises a first connecting part and a first hot melting piece which are both of an annular structure, the first connecting part is connected to one end of the jacking pipe body and extends in the axial direction of the jacking pipe body, and the first hot melting piece is connected to the inner wall of the first connecting part. The second top pipe joint comprises a second connecting part and a second hot melting piece which are both of an annular structure, the second connecting part is connected to one end of the other top pipe body and extends in the axial direction of the top pipe body, and the second hot melting piece is connected to the outer wall of the second connecting part; the second connecting part can be inserted into the first connecting part, and the first hot melting piece abuts against the second hot melting piece. The heating device is used for heating the first hot melting piece and the second hot melting piece. According to the jacking pipe connecting structure, the good sealing performance between the jacking pipes can be guaranteed, and the stability and safety of jacking pipe connection are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking construction, in particular to a pipe jacking connection structure and a pipe jacking assembly. Background Art

[0002] With the expansion of the urban scale and the increase of the population, the utilization of the urban underground space has developed rapidly, and the pipe jacking construction has also been widely applied in the construction of urban underground space projects. Compared with the traditional open cut method, the pipe jacking construction technology has obvious advantages. When using the pipe jacking construction technology for construction, there is no need to excavate the surface layer, and it can cross roads, railways, rivers, ground buildings, underground structures and various underground pipelines without damaging the ground road structure and affecting the normal operation of the existing road traffic at all. All construction is carried out below the road surface, the construction process is noise-free, and the cost is relatively low.

[0003] The construction process of the pipe jacking is as follows: after a pipe body is jacked into the foundation, the second pipe body is lowered and jacked in continuously to form a pipe jacking pipeline passing through the subgrade layer. During the pipe jacking construction process, problems such as poor sealing or easy damage of the pipe joints are likely to occur, especially in an environment with high groundwater pressure, which may lead to water seepage or pipeline connection failure.

[0004] Therefore, there is an urgent need for a pipe jacking connection structure and a pipe jacking assembly to solve the above problems. Summary of the Utility Model

[0005] An object of the utility model is to provide a pipe jacking connection structure, which can realize the sealed connection between pipe jackings, prevent water seepage of the pipe jackings, and improve the stability of the pipe jacking connection.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Provide a pipe jacking connection structure, including:

[0008] A first pipe jacking joint, the first pipe jacking joint includes a first connecting portion and a first hot melt member, both the first connecting portion and the first hot melt member are annular structures, the first connecting portion is connected to one end of the pipe jacking main body and extends along the axial direction of the pipe jacking main body, and the first hot melt member is connected to the inner wall of the first connecting portion;

[0009] A second pipe jacking joint, the second pipe jacking joint includes a second connecting portion and a second hot melt member, both the second connecting portion and the second hot melt member are annular structures, the second connecting portion is connected to one end of the other pipe jacking main body and extends along the axial direction of the pipe jacking main body, the second hot melt member is connected to the outer wall of the second connecting portion, the second connecting portion can be inserted into the first connecting portion and the first hot melt member abuts against the second hot melt member;

[0010] A heating device for heating the first hot melt part and the second hot melt part.

[0011] As an alternative embodiment of the pipe jacking connection structure, the first pipe jacking joint further includes a first connection groove formed by the inner wall of the first connection part and the end face of the pipe jacking body, and the first connection groove is capable of accommodating the second connection part.

[0012] As an alternative embodiment of the pipe jacking connection structure, a first accommodation groove is formed on the inner wall of the first connection part, and the first hot melt part is disposed in the first accommodation groove.

[0013] As an alternative embodiment of the pipe jacking connection structure, the second pipe jacking joint further includes a second connection groove formed by the outer wall of the second connection part and the end face of the pipe jacking body, and the second connection groove is capable of accommodating the first connection part.

[0014] As an alternative embodiment of the pipe jacking connection structure, a second accommodation groove is formed on the outer wall of the second connection part, and the second hot melt part is disposed in the second accommodation groove.

[0015] As an alternative embodiment of the pipe jacking connection structure, the heating device includes a heating power source, two electric heating elements and a plurality of electric wires. The two electric heating elements are respectively in contact with the first hot melt part and the second hot melt part, and the electric wires are used to connect the heating power source and the electric heating elements.

[0016] As an alternative embodiment of the pipe jacking connection structure, one of the electric heating elements is connected between the first connection part and the first hot melt part.

[0017] As an alternative embodiment of the pipe jacking connection structure, one of the electric heating elements is connected between the second connection part and the second hot melt part.

[0018] As an alternative embodiment of the pipe jacking connection structure, the cross sections of the first connection part and the second connection part are square.

[0019] Another object of the present utility model is to provide a pipe jacking assembly capable of ensuring the sealing performance and stability of the connection between pipe jackings.

[0020] To achieve this object, the present utility model adopts the following technical solutions:

[0021] A pipe jacking assembly is provided, including: a plurality of pipe jackings. Each pipe jacking includes a pipe jacking body and the above-mentioned pipe jacking connection structure. The first pipe jacking joint and the second pipe jacking joint are respectively disposed at both ends of the pipe jacking body, and the plurality of pipe jackings are connected in sequence.

[0022] Advantages of the present utility model:

[0023] The utility model provides a jacking pipe connection structure, which includes a first jacking pipe joint, a second jacking pipe joint and a heating device. The first jacking pipe joint includes a first connecting part connected to one end of the jacking pipe main body. The second jacking pipe joint includes a second connecting part connected to one end of another jacking pipe main body. Both the first connecting part and the second connecting part are annular structures. The second connecting part can be inserted into the first connecting part. An annular first hot-melt part is arranged on the inner wall of the first connecting part, and an annular second hot-melt part is arranged on the outer wall of the second connecting part. Under the action of the heating device, the first hot-melt part and the second hot-melt part can be melted and fused. After the fused material cools, it can fill the gap between the first connecting part and the second connecting part and bond with the first connecting part and the second connecting part, realizing the sealed connection between the first connecting part and the second connecting part. This jacking pipe connection structure is simple to install, can ensure good sealing between jacking pipes, prevent water penetration, can withstand the pressure of groundwater, and enhances the stability and safety of the jacking pipe connection.

[0024] The utility model also provides a jacking pipe assembly, which includes a plurality of jacking pipes and the above-mentioned jacking pipe connection structure, and can realize the sealed connection between jacking pipes, ensuring the waterproof performance of the jacking pipe assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the jacking pipe connection structure provided by the utility model;

[0026] Figure 2 is a schematic structural diagram of the first connecting part of the jacking pipe connection structure provided by the utility model;

[0027] Figure 3 is a schematic structural diagram of the second connecting part of the jacking pipe connection structure provided by the utility model.

[0028] In the figure:

[0029] 1, first jacking pipe joint; 11, first connecting part; 111, first receiving groove; 12, first hot-melt part; 13, first connecting groove;

[0030] 2, second jacking pipe joint; 21, second connecting part; 211, second receiving groove; 22, second hot-melt part; 23, second connecting groove;

[0031] 3, heating device; 31, heating power supply; 32, electric heating element; 33, electric wire;

[0032] 100, jacking pipe main body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following further describes the present utility model in detail in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0034] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0036] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0037] Such as Figures 1 to 3As shown in the figure, the pipe jacking connection structure of this embodiment includes a first pipe jacking joint 1, a second pipe jacking joint 2, and a heating device 3. The first pipe jacking joint 1 includes a first connecting portion 11 and a first hot melt member 12. Both the first connecting portion 11 and the first hot melt member 12 are annular structures. The first connecting portion 11 is connected to one end of the pipe jacking main body 100 and extends along the axial direction of the pipe jacking main body 100. The first hot melt member 12 is connected to the inner wall of the first connecting portion 11. The second pipe jacking joint 2 includes a second connecting portion 21 and a second hot melt member 22. Both the second connecting portion 21 and the second hot melt member 22 are annular structures. The second connecting portion 21 is connected to one end of another pipe jacking main body 100 and extends along the axial direction of the pipe jacking main body 100. The second hot melt member 22 is connected to the outer wall of the second connecting portion 21. The second connecting portion 21 can be inserted into the first connecting portion 11, and the first hot melt member 12 abuts against the second hot melt member 22. The heating device 3 is used to heat the first hot melt member 12 and the second hot melt member 22.

[0038] The pipe jacking connection structure of this embodiment includes a first pipe jacking joint 1, a second pipe jacking joint 2, and a heating device 3. The first pipe jacking joint 1 includes a first connecting portion 11 connected to one end of the pipe jacking main body 100, and the second pipe jacking joint 2 includes a second connecting portion 21 connected to one end of another pipe jacking main body 100. Both the first connecting portion 11 and the second connecting portion 21 are annular structures. The second connecting portion 21 can be inserted into the first connecting portion 11. An annular first hot melt member 12 is provided on the inner wall of the first connecting portion 11, and an annular second hot melt member 22 is provided on the outer wall of the second connecting portion 21. Under the action of the heating device 3, the first hot melt member 12 and the second hot melt member 22 can be melted and fused. After the fusion material cools, it can fill the gap between the first connecting portion 11 and the second connecting portion 21 and bond with the first connecting portion 11 and the second connecting portion 21, realizing the sealed connection between the first connecting portion 11 and the second connecting portion 21. This pipe jacking connection structure is simple to install, can ensure good sealing between pipe jackings, prevent water penetration, can withstand the pressure of groundwater, and enhances the stability and safety of the pipe jacking connection.

[0039] In this embodiment, the cross-sections of the first connecting portion 11 and the second connecting portion 21 are square. In some other embodiments, the first connecting portion 11 and the second connecting portion 21 can also be conical structures.

[0040] Furthermore, the first pipe jacking joint 1 further includes a first connecting groove 13. The inner wall of the first connecting portion 11 and the end face of the pipe jacking main body 100 form the first connecting groove 13, which can accommodate the second connecting portion 21 and facilitate the positioning of the second connecting portion 21. In this embodiment, the inner wall of the second connecting portion 21 overlaps with the cylindrical surface where the inner wall of the pipe jacking main body 100 is located, reducing the protrusion on the inner wall of the pipe jacking assembly. This can not only reduce the resistance of the water flow in the pipe jacking but also reduce the impact of the water flow on the pipe jacking connection structure, which is beneficial to improving the connection strength and service life of the pipe jacking connection structure.

[0041] Furthermore, the second pipe jacking joint 2 further includes a second connecting groove 23. An outer wall of the second connecting portion 21 and an end face of the pipe jacking main body 100 form the second connecting groove 23, and the second connecting groove 23 can accommodate the first connecting portion 11, facilitating the positioning of the first connecting portion 11. In this embodiment, an outer wall of the first connecting portion 11 overlaps with a cylindrical surface where the outer wall of the pipe jacking main body 100 is located, reducing protrusions on the outer wall surface of the pipe jacking assembly, thereby reducing the resistance suffered by the pipe jacking during the pipe jacking construction process, being beneficial to reducing the pipe jacking construction difficulty and improving the pipe jacking construction efficiency.

[0042] Optionally, a first accommodating groove 111 is formed on an inner wall of the first connecting portion 11, and the first hot melt piece 12 is arranged in the first accommodating groove 111. Such an arrangement can better position the first hot melt piece 12 and prevent the first hot melt piece 12 from moving axially during installation. In addition, after the first hot melt piece 12 and the second hot melt piece 22 are fused, part of the fused material can fill the first accommodating groove 111. When the first connecting portion 11 and the second connecting portion 21 move relatively axially, the fused material can abut against the inner wall of the first accommodating groove 111, thereby improving the axial connection strength of the pipe jacking connection structure and enhancing the stability of the pipe jacking connection structure.

[0043] Optionally, a second accommodating groove 211 is formed on an outer wall of the second connecting portion 21, and the second hot melt piece 22 is arranged in the second accommodating groove 211. Such an arrangement can better position the second hot melt piece 22 and prevent the second hot melt piece 22 from moving axially when connecting the pipe jacking. In addition, after the first hot melt piece 12 and the second hot melt piece 22 are fused, part of the fused material can fill the second accommodating groove 211. When the first connecting portion 11 and the second connecting portion 21 move relatively axially, the fused material can abut against the inner wall of the second accommodating groove 211, thereby further improving the axial connection strength of the pipe jacking connection structure and ensuring the stability of the pipe jacking connection structure.

[0044] Furthermore, the heating device 3 includes a heating power source 31, two heating elements 32, and a plurality of electric wires 33. The two heating elements 32 are respectively fixed to the first connecting portion 11 and the second connecting portion 12 and are respectively in contact with the first hot melt piece 12 and the second hot melt piece 22. The heating power source 31 is fixed on an inner wall of the second connecting portion 21, and the electric wires 33 are used to connect the heating power source 31 and the heating elements 32 to form a closed loop. In this embodiment, the heating power source 31 is a battery, and the heating element 32 is a heating wire. By controlling the power of the battery, it is ensured that the heating element 32 runs out of power after the first hot melt piece 12 and the second hot melt piece 22 are fully melted. When the heating power source 31 runs out of power, the heating element 32 stops heating, causing the fused material to start cooling and solidifying, thereby controlling the connection time of the pipe jacking connection structure and improving the connection efficiency.

[0045] Optionally, an electric heating element 32 is connected between the first connection part 11 and the first hot melt part 12, and an electric heating element 32 is connected between the second connection part 21 and the second hot melt part 22 to prevent the electric heating element 32 from falling off during installation.

[0046] This embodiment also provides a pipe jacking assembly, including a plurality of pipe jacking pipes. The pipe jacking pipe includes a pipe jacking pipe main body 100 and the above-mentioned pipe jacking pipe connection structure. The first pipe jacking joint 1 and the second pipe jacking joint 2 are respectively arranged at both ends of the pipe jacking pipe main body 100, and the plurality of pipe jacking pipes are connected in sequence. In this pipe jacking assembly, the plurality of pipe jacking pipes are connected through the above-mentioned pipe jacking pipe connection structure, realizing reliable sealing between the pipe jacking pipes, effectively preventing moisture penetration, enhancing the stability of the pipe jacking pipe connection and the water pressure resistance performance, and simplifying the installation process, ensuring the safety and efficiency of the construction site.

[0047] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A pipe jacking connection structure, characterized in that: include: A first jacking pipe joint (1), the first jacking pipe joint (1) comprising a first connecting portion (11) and a first hot melt component (12), the first connecting portion (11) and the first hot melt component (12) both being annular structures, the first connecting portion (11) being connected to one end of the jacking pipe body (100) and extending along the axial direction of the jacking pipe body (100), and the first hot melt component (12) being connected to the inner wall of the first connecting portion (11); A second jacking pipe joint (2), the second jacking pipe joint (2) comprising a second connecting portion (21) and a second hot melt component (22), the second connecting portion (21) and the second hot melt component (22) both being annular structures, the second connecting portion (21) being connected to one end of another jacking pipe body (100) and extending in the axial direction of the jacking pipe body (100), the second hot melt component (22) being connected to the outer wall of the second connecting portion (21), the second connecting portion (21) being capable of being inserted into the first connecting portion (11) and the first hot melt component (12) being in abutment with the second hot melt component (22); A heating device (3), wherein the heating device (3) is used to heat the first hot melt component (12) and the second hot melt component (22).

2. The jacking pipe connection structure according to claim 1, characterized in that: The first jacking pipe joint (1) further comprises a first connecting groove (13), wherein the inner wall of the first connecting portion (11) and the end surface of the jacking pipe body (100) form the first connecting groove (13), and the first connecting groove (13) is capable of accommodating the second connecting portion (21).

3. The jacking pipe connection structure according to claim 1, characterized in that: The inner wall of the first connecting portion (11) forms a first accommodating groove (111), and the first hot melt component (12) is arranged in the first accommodating groove (111).

4. The jacking pipe connection structure according to claim 1, characterized in that: The second jacking pipe joint (2) further comprises a second connecting groove (23), wherein the outer wall of the second connecting portion (21) and the end surface of the jacking pipe body (100) form the second connecting groove (23), and the second connecting groove (23) is capable of accommodating the first connecting portion (11).

5. The jacking pipe connection structure according to claim 1, characterized in that: The outer wall of the second connecting portion (21) forms a second receiving groove (211), and the second hot melt component (22) is arranged in the second receiving groove (211).

6. The jacking pipe connection structure according to claim 1, characterized in that: The heating device (3) comprises a heating power source (31), two electric heating elements (32) and a plurality of electric wires (33), wherein the two electric heating elements (32) are in contact with the first hot melt component (12) and the second hot melt component (22) respectively, and the electric wires (33) are used to connect the heating power source (31) and the electric heating elements (32).

7. The jacking pipe connection structure according to claim 6, characterized in that: An electric heating element (32) is connected between the first connecting portion (11) and the first hot melt component (12).

8. The jacking pipe connection structure according to claim 6, characterized in that: One of the electric heating elements (32) is connected between the second connecting portion (21) and the second hot melt component (22).

9. The jacking pipe connection structure according to claim 1, characterized in that: The cross sections of the first connecting portion (11) and the second connecting portion (21) are square.

10. A jacking pipe assembly, characterized in that: The invention comprises a plurality of jacking pipes, wherein the jacking pipes comprise a jacking pipe body (100) and a jacking pipe connection structure according to any one of claims 1 to 9, wherein the first jacking pipe joint (1) and the second jacking pipe joint (2) are respectively arranged at two ends of the jacking pipe body (100), and the plurality of jacking pipes are connected in sequence.

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