Flexible waterproof sleeve

Abstract

The utility model provides a flexible waterproof sleeve, which relates to the technical field of waterproof sleeves, and comprises a flexible inner pipe and two flange outer pipes, the two flange outer pipes are respectively sleeved at the two ends of the flexible inner pipe, an annular gap is formed between the inner wall of each flange outer pipe and the outer wall of the flexible inner pipe, and the outer wall of each flange outer pipe is provided with an annular groove. Elastic supporting pieces are arranged in the annular intervals and supported between the outer wall of the flexible inner pipe and the inner wall of the flange outer pipe. The flexible waterproof sleeve provided by the utility model can effectively avoid damage and leakage caused by non-uniform stress.

Description

Technical Field

[0001] This utility model relates to the field of waterproof sleeve technology, and in particular to a flexible waterproof sleeve. Background Technology

[0002] In building construction, waterproof sleeves are required when pipes need to pass through areas that require waterproofing, such as walls, floors, or roofs.

[0003] There are three types of existing waterproof sleeves: flexible waterproof sleeves, rigid waterproof sleeves, and rigid waterproof flanges. Flexible waterproof sleeves are suitable for areas with earthquake fortification requirements, where the pipe penetration point will be subject to vibration and pipe expansion and contraction, or for structures with strict waterproofing requirements. Rigid waterproof sleeves are suitable for structures where the pipe penetration point will not be subject to pipe vibration and expansion and contraction. Rigid waterproof flanges are suitable for structures where the pipe penetration point will not be subject to pipe vibration and expansion and contraction, and are suitable for structures where space is limited at the pipe penetration point, where the pipe installation precedes the structure, or for pipe renovation and upgrading.

[0004] However, existing waterproof sleeves are mostly suitable for penetration through a single wall. When a pipe needs to pass through multiple walls consecutively, different walls will experience different settlements, which will inevitably cause the pipe to be subjected to longitudinal shear forces and deform. This may lead to seal failure and pipe deformation, resulting in leakage. Although flexible waterproof sleeves can deform accordingly when uneven settlement occurs, in existing flexible waterproof sleeves, there must be a point where the pipe and sleeve are rigidly fixed. Therefore, when both sleeves are rigidly connected and fixed to the same pool wall, the same problem will occur when settlement occurs.

[0005] In view of this, based on years of experience in production and design in this and related fields, the inventor has designed a flexible waterproof sleeve through repeated experiments in order to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this invention is to provide a flexible waterproof sleeve that can effectively prevent damage and leakage caused by uneven stress.

[0007] To achieve the above objectives, this utility model proposes a flexible waterproof sleeve, wherein the waterproof sleeve includes a flexible inner tube and two flanged outer tubes, the two flanged outer tubes are respectively sleeved on both ends of the flexible inner tube, and an annular gap is formed between the inner wall of each flanged outer tube and the outer wall of the flexible inner tube. An elastic support member is provided within the annular gap, and each elastic support member is supported between the outer wall of the flexible inner tube and the inner wall of the flanged outer tube.

[0008] As described above, in the flexible waterproof sleeve, both ends of the flexible inner tube are detachably connected to elastic leak-proof rings, the outer diameter of the elastic leak-proof rings is larger than the outer diameter of the flexible inner tube, and the elastic leak-proof rings are sealed to the inner wall of the flange outer tube and close one end of the annular spacer.

[0009] The flexible waterproof sleeve as described above, wherein the elastic leak-proof ring and the flexible inner tube are threaded together.

[0010] As described above, in the flexible waterproof sleeve, a first elastic seal is provided at the other end of the annular spacer, and the first elastic seal is respectively sealed to the outer wall of the flexible inner tube and the inner wall of the flange outer tube.

[0011] As described above, in the flexible waterproof sleeve, a second elastic seal is further provided within the annular interval, the elastic support is located between the elastic leak-proof ring and the second elastic seal, and both ends of the elastic support abut against the elastic leak-proof ring and the second elastic seal, respectively.

[0012] The flexible waterproof sleeve described above, wherein the first elastic seal and the second elastic seal are annular bodies formed of flexible sealant.

[0013] The flexible waterproof sleeve described above, wherein the elastic support is an elastic sealing ring.

[0014] The flexible waterproof sleeve as described above, wherein the flange outer pipe includes an outer pipe body and flanges disposed at both ends of the outer pipe body.

[0015] The flexible waterproof sleeve described above has a radially protruding wing ring provided on the outer wall of the outer tube body.

[0016] The flexible waterproof sleeve as described above, wherein the flexible inner tube is a metal corrugated hose or a plastic corrugated hose.

[0017] Compared with the prior art, the present invention has the following features and advantages:

[0018] The flexible waterproof sleeve proposed in this utility model is used to pass through two walls with expansion joints. The two flanged outer pipes of the waterproof sleeve pass through the two walls respectively, and the two ends of the flexible inner pipe are respectively inserted into the two flanged outer pipes. The flexible inner pipe is connected to the flanged outer pipes through an elastic support. With the above structure, the flexible inner pipe has a lateral expansion and contraction margin, and the elastic support has a longitudinal expansion and contraction margin. Therefore, when the two walls settle unevenly, causing a height difference between the two flanged outer pipes, and the flexible inner pipe is subjected to lateral and longitudinal shear forces at the same time, the flexible inner pipe can undergo corresponding elastic changes in the lateral and / or longitudinal directions, thereby effectively preventing the flexible inner pipe from breaking and effectively avoiding leakage caused by the breakage of the flexible inner pipe. Attached Figure Description

[0019] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0020] Figure 1 This is a schematic diagram of the structure of the waterproof sleeve proposed in this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 100. Waterproof sleeve; 10. Flexible inner tube;

[0023] 20. Flange outer pipe; 21. Outer pipe body;

[0024] 22. Flange; 23. Wing ring;

[0025] 30. Annular gap; 40. Elastic support component;

[0026] 50. Elastic leak-proof ring; 60. First elastic seal;

[0027] 70. Second elastic seal; 200. Wall. Detailed Implementation

[0028] The details of this utility model can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of this utility model described herein are for illustrative purposes only and should not be construed as limiting the utility model in any way. Under the teachings of this utility model, those skilled in the art can conceive of any possible modifications based on this utility model, and these should all be considered to fall within the scope of this utility model.

[0029] like Figure 1 As shown, this utility model proposes a flexible waterproof sleeve 100, which includes a flexible inner tube 10 and two flanged outer tubes 20. The two flanged outer tubes 20 are respectively sleeved on both ends of the flexible inner tube 10. An annular gap 30 is formed between the inner wall of each flanged outer tube 20 and the outer wall of the flexible inner tube 10. An elastic support member 40 is provided in the annular gap 30, and each elastic support member 40 is supported between the outer wall of the flexible inner tube 10 and the inner wall of the flanged outer tube 20.

[0030] The flexible waterproof sleeve 100 proposed in this utility model is used to pass through two walls 200 with expansion joints. The two flange outer pipes 20 of the waterproof sleeve 100 pass through the two walls 200 respectively. The two ends of the flexible inner pipe 10 are respectively inserted into the two flange outer pipes 20, and the flexible inner pipe 10 is connected to the flange outer pipes 20 through the elastic support member 40. With the above structure, the flexible inner pipe 10 has a lateral expansion and contraction margin, and the elastic support member 40 has a longitudinal expansion and contraction margin. Therefore, when the two walls 200 undergo uneven settlement, causing a height difference between the two flange outer pipes 20, and the flexible inner pipe 10 is subjected to lateral and longitudinal shear forces at the same time, the flexible inner pipe 10 can undergo corresponding elastic changes in the lateral and / or longitudinal directions, thereby effectively preventing the flexible inner pipe 10 from breaking and effectively avoiding leakage caused by the breakage of the flexible inner pipe 10.

[0031] In one optional embodiment of this invention, elastic leak-proof rings 50 are detachably connected to both ends of the flexible inner tube 10. The outer diameter of the elastic leak-proof rings 50 is larger than the outer diameter of the flexible inner tube 10, and the elastic leak-proof rings 50 are in a sealing fit with the inner wall of the flange outer tube 20, sealing one end of the annular gap 30. The elastic leak-proof rings 50 can effectively ensure the sealing performance when the flexible inner tube 10 is connected to other pipelines, further preventing leakage of the flexible inner tube 10.

[0032] In one optional embodiment of this implementation, the elastic leak-proof ring 50 and the flexible inner tube 10 are threaded together to facilitate the disassembly and replacement of the flexible inner tube 10 during routine maintenance, thus solving the problem of replacement after accidental damage.

[0033] In an optional embodiment of this method, a first elastic seal 60 is provided at the other end of the annular gap 30. The first elastic seal 60 is in sealing engagement with the outer wall of the flexible inner tube 10 and the inner wall of the flange outer tube 20, respectively. By sealing the other end of the annular gap 30 with the first elastic seal 60, the sealing between the flange outer tube 20 and the flexible inner tube 10 is ensured, further preventing leakage accidents.

[0034] In an optional example, a second elastic seal 70 is also provided within the annular interval 30, and an elastic support 40 is located between the elastic leak-proof ring 50 and the second elastic seal 70, with both ends of the elastic support 40 abutting against the elastic leak-proof ring 50 and the second elastic seal 70, respectively. With this structure, both ends of the elastic support 40 are sealed, effectively ensuring the long-term effective operation of the elastic support 40.

[0035] In an optional example, the first resilient seal 60 and the second resilient seal 70 are annular bodies formed of flexible sealant material.

[0036] Furthermore, the flexible inner tube 10, the first elastic seal 60, the elastic support 40, and the second elastic seal 70 are pre-assembled inside the flange outer tube 20, which can avoid water leakage problems caused by poor sealing effect on site.

[0037] In an optional example, the resilient support 40 is a resilient sealing ring.

[0038] Preferably, in the length direction of the flexible inner tube 10, the length of the elastic support 40 is greater than the length of the first elastic seal 60 and the length of the second elastic seal 70.

[0039] In an optional embodiment of this utility model, the outer flange 20 includes an outer pipe body 21 and flanges 22 disposed at both ends of the outer pipe body 21. In use, the outer pipe body 21 penetrates the wall 200, and the two flanges 22 are respectively located on the inner and outer sides of the wall 200. The flange 22 located on the inner side of the wall 200 serves a limiting function, while the flange 22 located on the outer side of the wall 200 serves a connecting function to facilitate its connection with other pipelines or valves.

[0040] Furthermore, the flange 22 located on the outside of the wall 200 is spaced from the wall 200 to facilitate the installation and removal of connecting bolts when connecting other pipelines.

[0041] In an optional embodiment, a radially protruding wing ring 23 is provided on the outer wall of the outer tube 21 to further ensure the connection strength between the flange outer tube 20 and the wall 200.

[0042] In one optional example of this implementation, the flexible inner tube 10 is a metal corrugated hose or a plastic corrugated hose.

[0043] The detailed explanations of the above embodiments are intended only to explain the present invention so as to facilitate a better understanding of the present invention. However, these descriptions should not be construed as limiting the present invention for any reason. In particular, the various features described in different embodiments can be arbitrarily combined with each other to form other embodiments. Unless there is an explicit description to the contrary, these features should be understood to be applicable to any embodiment, and not limited to the described embodiments.

Claims

1. A flexible waterproofing sleeve, characterized in that, The waterproof sleeve includes a flexible inner tube and two flanged outer tubes. The two flanged outer tubes are respectively sleeved on both ends of the flexible inner tube. An annular gap is formed between the inner wall of each flanged outer tube and the outer wall of the flexible inner tube. An elastic support is provided in the annular gap, and each elastic support is supported between the outer wall of the flexible inner tube and the inner wall of the flanged outer tube.

2. The flexible waterproofing sleeve of claim 1, wherein, Both ends of the flexible inner tube are detachably connected to elastic leak-proof rings. The outer diameter of the elastic leak-proof rings is larger than the outer diameter of the flexible inner tube, and the elastic leak-proof rings are sealed to the inner wall of the flange outer tube and close one end of the annular gap.

3. The flexible waterproofing sleeve of claim 2, wherein, The elastic leak-proof ring and the flexible inner tube are connected by a thread.

4. The flexible waterproofing sleeve of claim 2, wherein, The other end of the annular spacer is provided with a first elastic seal, which is respectively sealed to the outer wall of the flexible inner tube and the inner wall of the flange outer tube.

5. The flexible waterproof sleeve as described in claim 4, characterized in that, A second elastic seal is also provided within the annular interval. The elastic support is located between the elastic leak-proof ring and the second elastic seal, and both ends of the elastic support abut against the elastic leak-proof ring and the second elastic seal, respectively.

6. The flexible waterproof sleeve as described in claim 5, characterized in that, The first elastic seal and the second elastic seal are annular bodies formed of flexible sealant.

7. The flexible waterproof sleeve as described in claim 1, characterized in that, The elastic support is an elastic sealing ring.

8. The flexible waterproof sleeve as described in claim 1, characterized in that, The flange outer tube includes an outer tube body and flanges disposed at both ends of the outer tube body.

9. The flexible waterproof sleeve as described in claim 8, characterized in that, The outer wall of the outer tube is provided with a radially protruding wing ring.

10. The flexible waterproof sleeve as described in claim 8, characterized in that, The flexible inner tube is a metal corrugated hose or a plastic corrugated hose.

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