Connecting pipe set and connecting assembly

Abstract

The utility model provides a connecting pipe set and a connecting assembly, the connecting pipe set comprises a pipe body, the pipe body comprises a lining pipe layer, a reinforcing pipe layer and an outer wrapping pipe layer which are sequentially connected from inside to outside, and at least part of the reinforcing pipe layer protrudes out of the lining pipe layer and the outer wrapping pipe layer; the connecting pipe comprises a first connecting section and a second connecting section which are connected with each other, the first connecting section is inserted into at least part of the reinforcing pipe layer, the end, away from the second connecting section, of the first connecting section abuts against the end of the lining pipe layer, the second connecting section protrudes out of the reinforcing pipe layer, and a connecting part is arranged on the second connecting section; the sleeve is arranged on at least part of the outer wall of the reinforced pipe layer in a sleeving manner, so that the connecting pipe and the sleeve are arranged on the two sides of the pipe body in a clamping manner; the end, close to the outer wrapping pipe layer, of the sleeve abuts against the end of the outer wrapping pipe layer. By adopting the technical scheme provided by the utility model, the technical problem that the connecting stability of the connecting pipe group in the prior art is poorer can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection structures, in particular to a connecting pipe group and a connecting component. Background Art

[0002] At present, when two pipelines are connected, a connecting piece used for the connection is often firstly sleeved on the end of the pipeline or inserted into the end of one pipeline, and then connected to the other pipeline through the connecting piece.

[0003] However, when the pipeline is a multi-layer sandwich structure with an outer cladding and an inner cladding, when the pipe body is connected in the above manner, the connector will be directly sleeved on the outer wall of the pipeline or embedded in the inner wall of the pipe body, that is, the connector is directly sleeved on the outer cladding or embedded in the inner cladding. The outer cladding and the inner cladding are generally protective layer structures, and the protective layer structure has limited structural strength and a certain degree of deformation ability. During the connection process between the pipeline and the connector, the structural strength of the connection will be insufficient, so that the effective connection between the pipeline and the connector cannot be guaranteed, and the connection stability of the pipeline and the connector is poor. Utility Model Content

[0004] The main purpose of the utility model is to provide a connecting pipe group and a connecting assembly to solve the technical problem of poor connection stability of the connecting pipe group in the prior art.

[0005] In order to achieve the above object, according to one aspect of the utility model, a connecting pipe group is provided, comprising:

[0006] The pipe body comprises an inner lining layer, a reinforcing layer and an outer cladding layer connected in sequence from the inside to the outside, wherein at least a portion of the reinforcing layer protrudes from the inner lining layer and the outer cladding layer;

[0007] The connecting pipe comprises a first connecting section and a second connecting section connected to each other, the first connecting section is inserted into at least a part of the reinforcing pipe layer, one end of the first connecting section away from the second connecting section abuts against the end of the lining pipe layer, the second connecting section is arranged to protrude from the reinforcing pipe layer, and a connecting portion is arranged on the second connecting section;

[0008] The sleeve is sleeved on at least part of the outer wall of the reinforcing tube layer so that the connecting tube and the sleeve are clamped on both sides of the tube body; one end of the sleeve close to the outer tube layer abuts against the end of the outer tube layer.

[0009] Further, a plurality of first protrusions are provided on one side of the connecting pipe close to the reinforcing pipe layer, the plurality of first protrusions are arranged at intervals along the extending direction of the connecting pipe, and a first groove is formed between two adjacent first protrusions; a plurality of second protrusions are provided on one side of the sleeve close to the reinforcing pipe layer, the plurality of second protrusions are arranged at intervals along the extending direction of the sleeve, and a second groove is formed between two adjacent second protrusions;

[0010] Among them, multiple first grooves are arranged in one-to-one correspondence with multiple second protrusions, and each first groove and the corresponding second protrusion are relatively arranged on both sides of the reinforced tube layer; multiple second grooves are arranged in one-to-one correspondence with multiple first protrusions, and each second groove and the corresponding first protrusion are relatively arranged on both sides of the reinforced tube layer.

[0011] Further, the first protrusion is embedded in one side of the reinforcement tube layer; and / or,

[0012] The second protrusion is embedded on the other side of the reinforced tube layer.

[0013] Furthermore, a third protrusion is provided on the side of the connecting pipe close to the reinforced pipe layer, and the third protrusion is provided on the side of the plurality of first protrusions away from the lining pipe layer, and the contact area between the third protrusion and the reinforced pipe layer is smaller than the contact area between the first protrusion and the reinforced pipe layer; and / or,

[0014] A fourth protrusion is also provided on the side of the sleeve close to the reinforcement tube layer. The fourth protrusion is provided on the side of the plurality of second protrusions away from the outer tube layer. The contact area between the fourth protrusion and the reinforcement tube layer is smaller than the contact area between the second protrusion and the reinforcement tube layer.

[0015] Furthermore, the inner lining layer comprises:

[0016] The inner rubber tube layer is inserted into the reinforcement tube layer, and the inner rubber tube layer is connected to the reinforcement tube layer;

[0017] The protective tube layer is inserted into the inner rubber tube layer, and the protective tube layer is connected to the inner rubber tube layer;

[0018] Wherein, one end of the first connecting section away from the second connecting section abuts against the end of the inner rubber tube layer and the end of the protective tube layer.

[0019] According to another aspect of the utility model, a connection assembly is provided, comprising: the connection pipe set provided above, the connection pipe set having two members;

[0020] The connection structure is provided with two connection matching parts, the two connection pipe groups are arranged one-to-one with the two connection matching parts, and the connection part of each connection pipe group is adapted to the corresponding connection matching part so that each connection pipe group is connected to the corresponding connection matching part.

[0021] Furthermore, the connection structure includes a first split body and a second split body that are detachably connected; when the first split body and the second split body are connected, the first split body and the second split body enclose an installation space that is adapted to the two connecting sections, so that the first split body and the second split body are installed on the two second connecting sections;

[0022] Among them, the first split body is provided with a first accommodating opening groove adapted to a part of the second connecting section of the connecting pipe group, and the second split body is provided with a second accommodating opening groove adapted to another part of the second connecting section; a part of two connecting matching parts is provided on the groove wall of the first accommodating opening groove, and another part of two connecting matching parts is provided on the groove wall of the second accommodating opening groove.

[0023] Further, one of the connecting portion and the connecting matching portion includes a plurality of connecting protrusions arranged at intervals, and the other of the connecting portion and the connecting matching portion includes a plurality of connecting grooves arranged at intervals;

[0024] The ends of the second connecting sections of the two connecting tube groups are arranged in abutment with each other, a plurality of connecting protrusions are arranged in one-to-one correspondence with a plurality of connecting grooves, and each connecting protrusion is arranged in a corresponding connecting groove.

[0025] Furthermore, the ends of the second connection sections of the two connection tube groups are abutted against each other; the connection structure further comprises:

[0026] The sealing structure comprises a first sealing portion and a second sealing portion, wherein the first sealing portion and the second sealing portion are respectively located on both sides of the abutment between the ends of the second connecting sections of the two connecting tube groups, the first sealing portion is used to be fitted with one second connecting section, and the second sealing portion is used to be fitted with another second connecting section.

[0027] Further, the sealing structure comprises a first sealing member, a second sealing member and a third sealing member connected in sequence, wherein the first sealing member is close to one end of a second connecting segment to form a first sealing portion, the third sealing member is close to one end of another second connecting segment to form a second sealing portion, and the second sealing member is spaced apart from the two second connecting segments; and / or,

[0028] The connecting part includes a plurality of connecting protrusions arranged at intervals, and the connecting matching part includes a plurality of connecting grooves arranged at intervals. The plurality of connecting protrusions are arranged in a one-to-one correspondence with the plurality of connecting grooves, and each connecting protrusion is arranged in a corresponding connecting groove; the connecting protrusion at the end of one connecting part is connected to the connecting protrusion at the end of the other connecting part to form a splicing protrusion, and the connecting groove of one connecting matching part is connected to the connecting groove of the other connecting matching part to form a splicing groove matched with the splicing protrusion. An installation groove connected with the splicing groove is also provided on the connecting structure. The shape of the installation groove is matched with the shape of the sealing structure, and the sealing structure is installed in the installation groove.

[0029] By applying the technical solution of the utility model, the first connecting section of the connecting pipe is inserted into the part of the reinforcing pipe layer and abuts against the end of the inner lining pipe layer, and the sleeve is clamped on the outer wall of the part of the reinforcing pipe layer and abuts against the end of the outer sheath layer. On the one hand, the friction between the connecting pipe and the reinforcing pipe layer is improved by the clamping force of the connecting pipe and the sleeve on the reinforcing pipe layer of the pipe body, thereby preventing the connecting pipe from falling off from the pipe body and ensuring the connection stability between the pipe body and the connecting pipe; on the other hand, since the reinforcing pipe layer has a larger structural strength and is not easy to deform compared with the inner lining pipe layer and the outer sheath layer, the situation that the connection position between the pipe body and the connecting pipe is easily moved and the clamping effect is poor due to large deformation during the connection process is reduced, thereby better preventing the connecting pipe from falling off from the pipe body and better ensuring the connection stability and connection strength between the pipe body and the connecting pipe. Therefore, the technical solution provided by the utility model can solve the technical problem of poor connection stability of the connecting pipe group in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0031] Figure 1 A schematic structural diagram of a connecting pipe group provided according to an embodiment of the utility model is shown;

[0032] Figure 2 Shows Figure 1 An enlarged view of the dotted line frame portion of the connecting pipe group is shown;

[0033] Figure 3 A schematic structural diagram of a connection assembly provided according to an embodiment of the utility model is shown;

[0034] Figure 4 Shows Figure 3 An enlarged view of the dashed box portion of the connection assembly is shown;

[0035] Figure 5 Shows Figure 4 An enlarged schematic diagram of some structures in .

[0036] The above drawings include the following reference numerals:

[0037] 10. Pipe body; 11. Inner lining layer; 111. Inner rubber layer; 112. Protective layer; 12. Reinforced layer; 13. Outer sheath layer;

[0038] 20. Connecting pipe; 21. First connecting section; 211. First protrusion; 212. First groove; 213. Third protrusion; 22. Second connecting section; 221. Connecting portion;

[0039] 30. sleeve; 31. second protrusion; 32. second groove; 33. fourth protrusion;

[0040] 40. Connection structure; 41. Connection fitting portion; 411. First accommodating opening groove; 412. Connection protrusion; 413. Connection groove; 42. First split body; 43. Sealing structure; 431. First sealing member; 432. Second sealing member; 433. Third sealing member; 434. Installation groove. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] like Figure 1 and Figure 2 As shown, the first embodiment of the present invention provides a connecting pipe group, which includes a pipe body 10, a connecting pipe 20 and a casing 30. The pipe body 10 includes an inner lining pipe layer 11, a reinforcing pipe layer 12 and an outer cladding layer 13 connected in sequence from the inside to the outside, and at least a portion of the reinforcing pipe layer 12 is protruded from the inner lining pipe layer 11 and the outer cladding layer 13. The connecting pipe 20 includes a first connecting section 21 and a second connecting section 22 connected to each other, the first connecting section 21 is inserted into at least a portion of the reinforcing pipe layer 12, one end of the first connecting section 21 away from the second connecting section 22 is abutted against the end of the inner lining pipe layer 11, the second connecting section 22 is protruded from the reinforcing pipe layer 12, and a connecting portion 221 is provided on the second connecting section 22. The sleeve 30 is sleeved on at least part of the outer wall of the reinforcing tube layer 12 so that the connecting tube 20 and the sleeve 30 are sandwiched on both sides of the tube body 10 , and one end of the sleeve 30 close to the outer tube layer 13 abuts against the end of the outer tube layer 13 .

[0043] By adopting the connecting pipe group provided by the utility model, the first connecting section 21 of the connecting pipe 20 is inserted into the part of the reinforced pipe layer 12, and the sleeve 30 is clamped on the outer wall of the part of the reinforced pipe layer 12. On the one hand, the friction between the connecting pipe 20 and the reinforced pipe layer 12 is improved through the clamping force of the connecting pipe 20 and the sleeve 30 on the reinforced pipe layer 12 of the pipe body 10, thereby preventing the connecting pipe 20 from falling off from the pipe body 10 and ensuring the connection stability between the pipe body 10 and the connecting pipe 20; on the other hand, because the reinforced pipe layer 12 has greater structural strength and is not easy to deform than the lining pipe layer 11 and the outer sheath layer 13, the situation that the connection position of the pipe body 10 and the connecting pipe 20 is easily moved and the clamping effect is poor due to the large deformation during the connection process is reduced, thereby better preventing the connecting pipe 20 from falling off from the pipe body 10 and better ensuring the connection stability and connection strength between the pipe body 10 and the connecting pipe 20. By abutting the first connection section 21 against the end of the inner lining layer 11 and the casing 30 against the end of the outer cladding layer 13 , the installation positions of the first connection section 21 and the casing 30 can be better positioned.

[0044] In addition, the second connecting section 22 of the connecting pipe 20 is protruding from the reinforcing pipe layer 12, and a connecting portion 221 is provided on the second connecting section 22. The connection of multiple connecting pipes 20 is achieved through the connecting portion 221, and then the connection of multiple pipe bodies 10 is achieved, so the convenience of connecting and splitting multiple sections of pipelines is greatly improved.

[0045] Specifically, the reinforced pipe layer 12 can be a steel wire reinforced layer to ensure the structural strength of the pipe body. Specifically, the steel wires in the steel wire reinforced layer have high structural strength and are arranged closely, and the steel wire reinforced layer can meet the working pressure requirements of 10MPa and above.

[0046] Specifically, the outer tube layer 13 is used to be arranged on the outer wall of the reinforcement tube layer 12 to protect the reinforcement tube layer 12, prevent the reinforcement tube layer 12 from corrosion, and can also buffer the pipe body 10 during transportation. Specifically, the outer tube layer 13 can be made of rubber material.

[0047] Specifically, the inner lining layer 11 is used to be arranged on the inner wall of the reinforcement layer 12 to protect the reinforcement layer 12, prevent the reinforcement layer 12 from corrosion, or reduce the wear of the reinforcement layer 12. Specifically, the inner lining layer can be made of a material with a high wear resistance coefficient to increase the service life of the pipe body 10.

[0048] Specifically, the "at least part of the reinforced pipe layer 12" in "the first connecting section 21 is inserted into at least part of the reinforced pipe layer 12" and "the casing 30 is sleeved on at least part of the outer wall of the reinforced pipe layer 12" refers to the part of the reinforced pipe layer 12 that protrudes out of the inner lining pipe layer 11 and the outer sheathing layer 13.

[0049] Specifically, the connecting portion 221 on the second connecting section 22 may be a connecting groove, a connecting protrusion 412 or a connecting thread or the like.

[0050] In this embodiment, a plurality of first protrusions 211 are provided on one side of the connecting tube 20 close to the reinforcing tube layer 12, and the plurality of first protrusions 211 are arranged at intervals along the extension direction of the connecting tube 20, and a first groove 212 is formed between two adjacent first protrusions 211. A plurality of second protrusions 31 are provided on one side of the sleeve 30 close to the reinforcing tube layer 12, and the plurality of second protrusions 31 are arranged at intervals along the extension direction of the sleeve 30, and a second groove 32 is formed between two adjacent second protrusions 31. The plurality of first grooves 212 are arranged in one-to-one correspondence with the plurality of second protrusions 31, and each first groove 212 and the corresponding second protrusion 31 are arranged on both sides of the reinforcing tube layer 12; the plurality of second grooves 32 are arranged in one-to-one correspondence with the plurality of first protrusions 211, and each second groove 32 and the corresponding first protrusion 211 are arranged on both sides of the reinforcing tube layer 12.

[0051] With such an arrangement, a plurality of first protrusions 211 are arranged on the side of the connecting pipe 20 close to the reinforcing pipe layer 12 and a first groove 212 is formed between adjacent first protrusions 211, and a plurality of second protrusions 31 are arranged on the side of the sleeve 30 close to the reinforcing pipe layer 12 and a second groove 32 is formed between adjacent second protrusions 31. When the connecting pipe 20 and the sleeve 30 are clamped on both sides of at least part of the reinforcing pipe layer 12 by a high pressure clamp, each first protrusion 211 and the second groove 32 are arranged on both sides of the same position on the reinforcing pipe layer 12, and each first groove 212 and the second protrusion 31 are arranged on two opposite sides of the same position on the reinforcing pipe layer 12. The first protrusion 211 is buckled in the reinforced tube layer 12, and a buckling groove matching the threshold is formed in the reinforced tube layer 12 at the relative position of the first protrusion 211. The side of the reinforced tube layer 12 opposite to the buckling groove will be deformed to form a buckling protrusion, and the first protrusion 211 will push the buckling protrusion into the corresponding second groove 32 at the same time; the buckling fitting process between the second protrusion 31 and the first groove 212 is similar to the buckling fitting process between the first protrusion 211 and the second groove 32. In this way, the connecting tube 20 and the sleeve 30 can be firmly clamped on the pipe body 10, ensuring the stability of the connection of the connecting tube 20 and the structural strength of the connection, and preventing the connecting tube 20 from falling off the pipe body 10.

[0052] In this embodiment, the first protrusion 211 is embedded in one side of the reinforcing tube layer 12. In this way, the connecting tube 20 can be firmly fixed on the reinforcing tube layer 12, ensuring the structural strength and stability of the connection of the connecting tube 20, and preventing the connecting tube 20 from falling off from the tube body 10.

[0053] In this embodiment, the second protrusion 31 is embedded in the other side of the reinforcing tube layer 12. In this way, the sleeve 30 can be firmly fixed on the reinforcing tube layer 12, and the connecting tube 20 can also be firmly fixed on the reinforcing tube layer 12, thereby ensuring the structural strength and stability of the connection, and preventing the connecting tube 20 from falling off from the tube body 10.

[0054] In this embodiment, a third protrusion 213 is further provided on the side of the connecting pipe 20 close to the reinforcing pipe layer 12. The third protrusion 213 is provided on the side of the plurality of first protrusions 211 away from the inner lining pipe layer 11, and the contact area between the third protrusion 213 and the reinforcing pipe layer 12 is smaller than the contact area between the first protrusion 211 and the reinforcing pipe layer 12. Since the contact area between the third protrusion 213 and the reinforcing pipe layer 12 is smaller than the contact area between the first protrusion 211 and the reinforcing pipe layer 12, it is easier to insert each third protrusion 213 on the side of the connecting pipe 20 close to the reinforcing pipe layer 12 into the inner wall of the reinforcing pipe layer 12, thereby facilitating the smoothness of the insertion of the third protrusion 213 at the end into the inner wall of the reinforcing pipe layer 12 at the end, thereby facilitating the installation of the connecting pipe 20 onto the reinforcing pipe layer 12 without affecting the connection strength between the connecting pipe 20 and the pipe body 10, thereby improving the convenience of installing the connecting pipe 20.

[0055] In this embodiment, a fourth protrusion 33 is further provided on the side of the sleeve 30 close to the reinforcement tube layer 12. The fourth protrusion 33 is provided on the side of the plurality of second protrusions 31 away from the outer tube layer 13. The contact area between the fourth protrusion 33 and the reinforcement tube layer 12 is smaller than the contact area between the second protrusion 31 and the reinforcement tube layer 12. Since the contact area between the fourth protrusion 33 and the reinforcement tube layer 12 is smaller than the contact area between the second protrusion 31 and the reinforcement tube layer 12, it is easier to sleeve each fourth protrusion 33 on the side of the sleeve 30 close to the reinforcement tube layer 12 onto the reinforcement tube layer 12, thereby facilitating the smoothness of sleeve-mounting the fourth protrusion 33 at the end onto the reinforcement tube layer 12 at the end, thereby facilitating the sleeve 30 to be installed on the reinforcement tube layer 12 without affecting the connection strength between the sleeve 30 and the tube body 10, thereby improving the convenience of installing the sleeve 30.

[0056] In this embodiment, the inner lining tube layer 11 includes an inner hose layer 111 and a protective tube layer 112. The inner hose layer 111 is inserted into the reinforcing tube layer 12, and the inner hose layer 111 is connected to the reinforcing tube layer 12; the protective tube layer 112 is inserted into the inner hose layer 111 and is connected to the inner hose layer 111; wherein, the end of the first connecting section 21 away from the second connecting section 22 abuts against the end of the inner hose layer 111 and the end of the protective tube layer 112. In this way, the wear resistance and corrosion resistance of the pipe body 10 are improved by the protective tube layer 112, thereby improving the service life of the pipe body 10, and the inner hose layer 111 can buffer the material in the pipe body 10 to reduce the impact of the material on the pipe body 10, which will further improve the service life of the pipe body 10.

[0057] Specifically, the protective tube layer 112 can be made of a wear-resistant material, or a corrosion-resistant material component, or a wear-resistant and corrosion-resistant material component, or a mixture of a wear-resistant material and a corrosion-resistant material.

[0058] Specifically, the protective pipe layer 112 can be made of ultra-high molecular polyethylene materials such as UPE, so that its wear resistance coefficient is increased to more than 10 times that of the reinforced pipe layer 12. In addition, ultra-high molecular polyethylene materials such as UPE have good corrosion resistance, so they can also meet the corrosion resistance requirements, thereby increasing the service life of the pipe body 10.

[0059] Specifically, the inner rubber tube layer 111 may be made of rubber material.

[0060] like Figures 3 to 5 As shown, the second embodiment of the present utility model provides a connection assembly, which includes a connection structure 40 and a connection pipe group provided in the first embodiment. There are two connection pipe groups; two connection matching parts 41 are arranged on the connection structure 40, and the two connection pipe groups are arranged one-to-one with the two connection matching parts 41, and the connection part 221 of each connection pipe group is adapted to the corresponding connection matching part 41, so that each connection pipe group is connected to the corresponding connection matching part 41.

[0061] By using the connection assembly provided in this embodiment, one connection pipe 20 and one connection matching portion 41 of the connection structure 40 match each other, and another connection pipe 20 and another connection matching portion 41 of the connection structure 40 match each other, so that the two connection pipes 20 can be connected through the connection structure 40, and then the two pipe bodies 10 can be connected together, thereby realizing the connection of the pipeline. Since the connection pipes 20 and the pipe bodies 10 of each connection pipe group have good connection stability and connection strength, and the two connection pipes 20 are connected through the connection structure 40, on the one hand, the connection strength and stability of the connection position of the two connection pipes 20 are guaranteed, and on the other hand, it is also convenient to install and disassemble multiple pipe bodies 10, thereby improving the convenience of connecting each pipe body 10.

[0062] Specifically, the connection structure 40 is made of alloy, and after multiple processes such as precision forging, heat treatment, machining, and spraying, it can withstand a high pressure of more than 10 MPa to meet the use requirements.

[0063] In this embodiment, the connection structure 40 includes a first split body 42 and a second split body that are detachably connected; when the first split body 42 and the second split body are connected, the first split body 42 and the second split body enclose an installation space that is compatible with the two connecting sections, so that the first split body 42 and the second split body are installed on the two second connecting sections 22. Among them, the first split body 42 is provided with a first accommodating opening groove 411 that is compatible with a part of the second connecting section 22 of the connecting pipe group, and the second split body is provided with a second accommodating opening groove that is compatible with another part of the second connecting section 22; a part of the two connecting matching parts 41 is provided on the groove wall of the first accommodating opening groove 411, and another part of the two connecting matching parts 41 is provided on the groove wall of the second accommodating opening groove. In this way, by setting the connection structure 40 as a split structure, the first split body 42 and the second split body are both provided with a part of the two connecting matching parts 41, and the first split body 42 and the second split body are matched and connected with each other, so that they can be combined to form two connecting matching parts 41, and then the connection of the two connecting pipes 20 can be realized. Furthermore, by providing the connection structure 40 with a detachable split structure, the first split 42 and the second split can be placed on both sides of the installation position respectively, and then the first split 42 and the second split are connected to form the connection structure 40, so that the connection structure 40 can be more conveniently installed on the connection parts 221 of the two connecting pipes 20, which is convenient for disassembly and assembly.

[0064] Specifically, the first sub-body 42 and the second sub-body are both provided with a plurality of screw holes arranged opposite to each other, and each bolt passes through two screw holes at corresponding positions on the two sub-bodies in sequence, thereby realizing the installation and removal of the first sub-body 42 and the second sub-body. Moreover, by installing and removing the first sub-body 42 and the second sub-body in this way, the convenience of installing and removing each sub-body is further improved.

[0065] In this embodiment, one of the connecting portion 221 and the connecting matching portion 41 includes a plurality of spaced connecting protrusions 412, and the other of the connecting portion 221 and the connecting matching portion 41 includes a plurality of spaced connecting grooves 413. The ends of the second connecting segments 22 of the two connecting tube groups are abutted, and the plurality of connecting protrusions 412 are arranged one-to-one with the plurality of connecting grooves 413, and each connecting protrusion 412 is arranged in a corresponding connecting groove 413. In this way, through the mutual cooperation of the connecting grooves 413 and the connecting protrusions 412, not only the installation position of the connecting member can be positioned, but also the connecting structure 40 can be tightly connected to the two second connecting segments 22, thereby improving the convenience of installation and the structural strength of the connection position of the two second connecting segments 22. In addition, the connecting protrusions 412 and the connecting grooves 413 are both arranged in plurality, thereby further improving the stability of the connection between the connecting structure 40 and the two second connecting segments 22, and the structural strength of the connection.

[0066] In this embodiment, the ends of the second connection sections 22 of the two connection tube groups are abutted. The connection structure 40 also includes a sealing structure 43, which has a first sealing portion and a second sealing portion, which are respectively located on both sides of the abutment of the ends of the second connection sections 22 of the two connection tube groups, the first sealing portion is used to fit with one second connection section 22, and the second sealing portion is used to fit with another second connection section 22. In this way, the first sealing portion of the sealing structure 43 is fitted with one second connection section 22, and the second sealing portion is fitted with another second connection section 22, so that the position where the second connection sections 22 of the two connection tubes 20 are connected can be sealed, preventing the material in the pipe body 10 from leaking at the connection of each connection tube 20, thereby ensuring the stability of the pipeline when transporting materials.

[0067] In this embodiment, the sealing structure 43 includes a first seal 431, a second seal 432 and a third seal 433 connected in sequence, the first seal 431 forms a first seal near one end of a second connecting section 22, the third seal 433 forms a second seal near one end of another second connecting section 22, and the second seal 432 is spaced apart from the two second connecting sections 22. In this way, the first seal on the first seal 431 is fitted with one second connecting section 22, the second seal on the third seal 433 is fitted with another second connecting section 22, and the second seal 432 is connected to the first seal 431 and the third seal 433, so that the material that may penetrate can be tightly sealed in the space surrounded by the first seal 431, the second seal 432 and the third seal 433, so as to prevent the material in the pipe body 10 from leaking at the connection of each connecting pipe 20, thereby ensuring the stability of the pipeline when transporting materials.

[0068] In this embodiment, the connection part 221 includes a plurality of connection protrusions 412 arranged at intervals, and the connection matching part 41 includes a plurality of connection grooves 413 arranged at intervals. The plurality of connection protrusions 412 are arranged one-to-one with the plurality of connection grooves 413, and each connection protrusion 412 is arranged in a corresponding connection groove 413. The connection protrusion 412 at the end of one connection part 221 is connected with the connection protrusion 412 at the end of another connection part 221 to form a splicing protrusion, and the connection groove 413 of one connection matching part 41 is connected with the connection groove 413 of another connection matching part 41 to form a splicing groove matched with the splicing protrusion. The connection structure 40 is also provided with a mounting groove 434 connected with the splicing groove, and the shape of the mounting groove 434 is matched with the shape of the sealing structure 43, and the sealing structure 43 is installed in the mounting groove 434. In this way, a plurality of mutually matching connection protrusions 412 and connection grooves 413 are arranged at the installation position of the connection structure 40 and the connection part 221, thereby effectively improving the structural strength and stability of the connection position. Furthermore, the splicing protrusions and the splicing grooves are adapted to each other, ensuring that the ends of the two connecting parts 221 can be installed at the corresponding positions on the connecting matching part 41, thereby realizing the positioning of the installation position of the connecting structure 40. In addition, the sealing structure 43 can be installed in the installation groove 434, thereby preventing the material in the pipe body 10 from leaking at the connection of each connecting pipe 20, thereby ensuring the stability of the pipeline when transporting materials.

[0069] Specifically, the connecting pipe group and the connecting assembly provided in the above-mentioned embodiment can be used in the field of mining. During the mining process, as the mining face advances, it is necessary to backfill the goaf area to control the damage and deformation of the overlying rock strata caused by mining, so that the deformation of the buildings above the ground is kept within a safe allowable range. When backfilling the goaf area, a pipeline is often used to transport the fluid filler. Since the pressure of the fluid filler in the pipeline is relatively high, the prior art often uses a high-pressure hose (equivalent to the pipe body 10) with a multi-layer structure to transport the filler. The connecting pipe group and the connecting assembly provided in the above-mentioned embodiment can ensure the structural strength of the connection position of each section of the high-pressure hose while extending the total length of the pipeline.

[0070] From the above description, it can be seen that the above-mentioned embodiments of the utility model achieve the following technical effects: the connecting pipe 20 and the sleeve 30 are clamped on both sides of the reinforcing pipe layer 12 which is a layer of the pipe body 10, and do not need to be installed on both sides of each pipe layer of the entire pipe body 10, thereby reducing the distance between the connecting pipe 20 and the sleeve 30, thereby improving the clamping effect of the connecting pipe 20 and the sleeve 30, and further greatly improving the connection strength of the connection position of the connecting pipe 20 and the pipe body 10.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0072] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0073] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0074] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0075] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0076] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A connecting pipe set, characterized in that: include: A pipe body (10), the pipe body (10) comprising an inner lining layer (11), a reinforcing pipe layer (12) and an outer cladding layer (13) connected in sequence from the inside to the outside, wherein at least a portion of the reinforcing pipe layer (12) protrudes from the inner lining layer (11) and the outer cladding layer (13); A connecting pipe (20), comprising a first connecting section (21) and a second connecting section (22) connected to each other, wherein the first connecting section (21) is inserted into at least a portion of the reinforcing pipe layer (12), an end of the first connecting section (21) away from the second connecting section (22) abuts against an end of the inner lining pipe layer (11), the second connecting section (22) is arranged to protrude from the reinforcing pipe layer (12), and a connecting portion (221) is arranged on the second connecting section (22); A sleeve (30) is sleeved on at least part of the outer wall of the reinforcing tube layer (12) so that the connecting tube (20) and the sleeve (30) are clamped on both sides of the tube body (10); an end of the sleeve (30) close to the outer tube layer (13) abuts against the end of the outer tube layer (13).

2. The connecting pipe assembly according to claim 1, characterized in that: A plurality of first protrusions (211) are arranged on one side of the connecting tube (20) close to the reinforcing tube layer (12), the plurality of first protrusions (211) are arranged at intervals along the extension direction of the connecting tube (20), and a first groove (212) is formed between two adjacent first protrusions (211); a plurality of second protrusions (31) are arranged on one side of the sleeve (30) close to the reinforcing tube layer (12), the plurality of second protrusions (31) are arranged at intervals along the extension direction of the sleeve (30), and a second groove (32) is formed between two adjacent second protrusions (31); Wherein, a plurality of first grooves (212) and a plurality of second protrusions (31) are arranged in one-to-one correspondence, and each first groove (212) and the corresponding second protrusion (31) are arranged relatively on both sides of the reinforced tube layer (12); a plurality of second grooves (32) and a plurality of first protrusions (211) are arranged in one-to-one correspondence, and each second groove (32) and the corresponding first protrusion (211) are arranged relatively on both sides of the reinforced tube layer (12).

3. The connecting pipe assembly according to claim 2, characterized in that: The first protrusion (211) is embedded on one side of the reinforcing tube layer (12); and / or, The second protrusion (31) is embedded in the other side of the reinforced tube layer (12).

4. The connecting pipe assembly according to claim 2, characterized in that: A third protrusion (213) is further provided on a side of the connecting pipe (20) close to the reinforcing pipe layer (12); the third protrusion (213) is provided on a side of the plurality of first protrusions (211) away from the inner lining pipe layer (11); a contact area between the third protrusion (213) and the reinforcing pipe layer (12) is smaller than a contact area between the first protrusion (211) and the reinforcing pipe layer (12); and / or, A fourth protrusion (33) is further provided on a side of the casing (30) close to the reinforcing tube layer (12); the fourth protrusion (33) is provided on a side of the plurality of second protrusions (31) away from the outer tube layer (13); and a contact area between the fourth protrusion (33) and the reinforcing tube layer (12) is smaller than a contact area between the second protrusion (31) and the reinforcing tube layer (12).

5. The connecting pipe assembly according to claim 1, characterized in that: The inner lining layer (11) comprises: An inner rubber tube layer (111) is inserted into the reinforcing tube layer (12), and the inner rubber tube layer (111) is connected to the reinforcing tube layer (12); A protective tube layer (112) is inserted into the inner rubber tube layer (111), and the protective tube layer (112) is connected to the inner rubber tube layer (111); Wherein, one end of the first connecting section (21) away from the second connecting section (22) abuts against the end of the inner rubber tube layer (111) and the end of the protective tube layer (112).

6. A connection assembly, characterized in that: include: The connecting pipe set according to any one of claims 1 to 5, wherein there are two connecting pipe sets; A connection structure (40), wherein two connection fitting parts (41) are arranged on the connection structure (40), the two connection tube groups are arranged in one-to-one correspondence with the two connection fitting parts (41), and the connection part (221) of each connection tube group is matched with the corresponding connection fitting part (41) so that each connection tube group is connected to the corresponding connection fitting part (41).

7. The connection assembly according to claim 6, characterized in that: The connection structure (40) comprises a first split body (42) and a second split body which are detachably connected; when the first split body (42) and the second split body are connected, the first split body (42) and the second split body enclose an installation space adapted to the two connection sections, so that the first split body (42) and the second split body are installed on the two second connection sections (22); The first split body (42) is provided with a first accommodating opening groove (411) adapted to a part of the second connecting section (22) of the connecting pipe group, and the second split body is provided with a second accommodating opening groove adapted to another part of the second connecting section (22); a part of the two connecting matching parts (41) is provided on the groove wall of the first accommodating opening groove (411), and another part of the two connecting matching parts (41) is provided on the groove wall of the second accommodating opening groove.

8. The connection assembly according to claim 6, characterized in that: One of the connecting portion (221) and the connecting matching portion (41) comprises a plurality of connecting protrusions (412) arranged at intervals, and the other of the connecting portion (221) and the connecting matching portion (41) comprises a plurality of connecting grooves (413) arranged at intervals; The ends of the second connecting sections (22) of the two connecting tube groups are arranged in abutment with each other, the plurality of connecting protrusions (412) and the plurality of connecting grooves (413) are arranged in one-to-one correspondence, and each connecting protrusion (412) is arranged in a corresponding connecting groove (413).

9. The connection assembly according to claim 6, characterized in that: The ends of the second connecting sections (22) of the two connecting tube groups are arranged in abutment with each other; the connecting structure (40) further comprises: A sealing structure (43), wherein the sealing structure (43) comprises a first sealing portion and a second sealing portion, wherein the first sealing portion and the second sealing portion are respectively located on both sides of abutment between the ends of the second connecting sections (22) of the two connecting tube groups, wherein the first sealing portion is used to be fitted with one of the second connecting sections (22), and the second sealing portion is used to be fitted with another of the second connecting sections (22).

10. The connection assembly according to claim 9, characterized in that The sealing structure (43) comprises a first sealing member (431), a second sealing member (432) and a third sealing member (433) which are connected in sequence, wherein the first sealing member (431) is close to one end of one of the second connecting sections (22) to form the first sealing portion, and the third sealing member (433) is close to one end of another of the second connecting sections (22) to form the second sealing portion, and the second sealing member (432) is spaced apart from the two second connecting sections (22); and / or, The connecting portion (221) includes a plurality of connecting protrusions (412) arranged at intervals, and the connecting matching portion (41) includes a plurality of connecting grooves (413) arranged at intervals. The plurality of connecting protrusions (412) and the plurality of connecting grooves (413) are arranged in a one-to-one correspondence, and each connecting protrusion (412) is arranged in a corresponding connecting groove (413); the connecting protrusion (412) at the end of one connecting portion (221) and the connecting protrusion (412) at the end of another connecting portion (221) are connected to each other. (412) are connected to form a splicing protrusion, a connecting groove (413) of one connecting matching part (41) is connected to a connecting groove (413) of another connecting matching part (41) to form a splicing groove matched with the splicing protrusion, and a mounting groove (434) connected to the splicing groove is also provided on the connecting structure (40), and the shape of the mounting groove (434) is matched with the shape of the sealing structure (43), and the sealing structure (43) is installed in the mounting groove (434).

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