Embedded through-wall pipe

Abstract

The utility model provides an embedded through-wall pipe. The embedded through-wall pipe comprises an embedded pipe, a first sealing ring; a first crimping structure; a second sealing ring; and a second crimping structure. The embedded through-wall pipe provided by the utility model is provided with the embedded pipe, the first sealing ring is arranged on the annular platform of the flaring part in the embedded pipe, the first sealing ring can extend into the flaring part through the first crimping structure, and the first sealing ring is extruded by the extension part of the first crimping structure and the annular platform together; a first sealing ring and a second pressing connection structure are arranged, the second pressing connection structure and the first pressing connection structure jointly extrude the second sealing ring, the second sealing ring is made to abut against the outer wall of the connecting pipeline after extending, and the situation that the telescopic pipe and the through-wall pipe twist relatively can be avoided; the stability and the practicability are good.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline installation, and in particular relates to a pre-buried wall-penetrating pipe. Background Art

[0002] Wall pipes, also known as wall sleeves, are a type of hardware used for installation on building walls. Water wall pipes are an indispensable part of home decoration. They ensure that water pipes are safe between different spaces and can reliably pass through walls.

[0003] In the prior art, the wall-penetrating pipe is usually pre-buried in the wall, but the wall-penetrating pipe is usually connected to an external connecting pipe. However, there will be certain errors in the actual construction, resulting in inconvenience in docking. Therefore, the wall-penetrating pipe and the telescopic pipe are usually connected in a telescopic manner and fixed by squeezing the sealing ring. However, after the connection, the connecting pipe of this structure is subjected to internal and external vibrations, and a certain angle of twisting will occur relative to the wall-penetrating pipe, resulting in poor stability, affecting the service life, and poor practicality. Utility Model Content

[0004] The embodiment of the utility model provides a pre-buried wall-penetrating pipe, which aims to solve the problems of twisting of the connecting pipe after being subjected to internal and external vibration after the existing pipeline connection, poor stability and poor practicality.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a pre-buried wall-penetrating pipe, comprising:

[0006] The embedded pipe has a through-going tube cavity into which the connecting pipeline can extend, one end of the tube cavity is provided with a flared portion, and an annular platform is formed at the bottom of the flared portion;

[0007] A first sealing ring, arranged on the annular platform;

[0008] A first crimping structure, having a protruding portion that can be extended into the flared portion, wherein the first crimping structure is used to, after being connected to the embedded pipe, squeeze the first sealing ring through the protruding portion and the annular platform, so that the first sealing ring is extended and abuts against the outer wall of the connecting pipeline;

[0009] A second sealing ring is arranged at an end of the first crimping structure away from the protruding portion;

[0010] The second crimping structure is used to compress the second sealing ring together with the first crimping structure after being connected to the embedded pipe, so that the second sealing ring is extended and abuts against the outer wall of the connecting pipeline.

[0011] In a possible implementation manner, a fixing flange for connecting the first crimping structure and the second crimping structure is provided at the end of the embedded pipe.

[0012] In a possible implementation, the first crimping structure includes:

[0013] A first pressure plate, comprising a connecting flange and an insert sleeve integrally connected to the connecting flange, wherein the insert sleeve is the extending portion;

[0014] There are multiple first bolts, each of which is arranged on the first pressure plate in an annular manner along the axis of the first pressure plate, and a spacing area is formed between any two adjacent first bolts.

[0015] In a possible implementation, the connecting flange and the axis of the insert are arranged colinearly.

[0016] In a possible implementation, the second crimping structure includes:

[0017] A second pressure plate is arranged in parallel with the connecting flange, and an annular extrusion groove for placing the second sealing ring is provided on the end surface of the second pressure plate close to the connecting flange; the second pressure plate has a circular hole for the connecting pipeline to pass through;

[0018] There are multiple second bolts, each of which corresponds to each of the spacers one by one, and each of the second bolts passes through the second pressure plate, the connecting flange and the fixing flange in sequence.

[0019] In a possible implementation, the annular extrusion groove passes through the inner side wall of the circular hole, and an annular inclined portion is provided on the side wall of the annular extrusion groove away from the circular hole.

[0020] In a possible implementation, a positioning ring is provided on the outer wall of the embedded pipe.

[0021] In a possible implementation, the positioning ring is provided with a plurality of positioning holes, and the plurality of positioning holes are arranged at annular intervals along the axis of the embedded pipe.

[0022] In a possible implementation, the embedded wall-penetrating pipe further includes a positioning member, and a plurality of the positioning members are provided, and the plurality of the positioning members are arranged in one-to-one correspondence with the plurality of the positioning holes, each of the positioning members is an L-shaped rod, and one end of each of the positioning members passes through the corresponding positioning hole.

[0023] In a possible implementation, each of the positioning holes is a regular polygonal hole, and a cross section of each corresponding positioning member inserted into the positioning hole is a polygonal structure corresponding to the positioning hole.

[0024] In this implementation, compared with the prior art, a pre-buried pipe is provided, and a first sealing ring is provided on the annular platform of the flared part inside the pre-buried pipe, which can be extended into the flared part through a first crimping structure, and the first sealing ring is squeezed together with the protruding part of the first crimping structure and the annular platform, so that the first sealing ring abuts against the outer wall of the connecting pipeline after being extended, and a second sealing ring and a second crimping structure are provided, and the second crimping structure can squeeze the second sealing ring together with the first crimping structure, so that the second sealing ring abuts against the outer wall of the connecting pipeline after being extended, which can avoid relative twisting between the telescopic tube and the wall-penetrating tube, and has good stability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a partial cross-sectional structure of a pre-buried wall-penetrating pipe provided in an embodiment of the utility model;

[0026] Figure 2 for Figure 1 The structural schematic diagram provided is a rotational cross-sectional structural schematic diagram at AA;

[0027] Figure 3 for Figure 2 The cross-sectional structural diagram at BB of the provided structural diagram;

[0028] Description of reference numerals:

[0029] 10. Embedded pipe; 11. Pipe cavity; 12. Positioning ring; 20. First sealing ring; 30. First crimping structure; 31. First pressure plate; 311. Connecting flange; 312. Insert sleeve; 32. First bolt; 40. Second sealing ring; 50. Second crimping structure; 51. Second pressure plate; 52. Second bolt; 60. Positioning piece; 70. Telescopic tube. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] Please also read Figures 1 to 3 The embedded wall-penetrating pipe provided by the utility model is now described. The embedded wall-penetrating pipe comprises: an embedded pipe 10, a first sealing ring 20, a first crimping structure 30, a second sealing ring 40 and a second crimping structure 50.

[0032] The embedded pipe 10 has a through tube cavity 11 for the connecting pipeline to extend into. One end of the tube cavity 11 is provided with a flared portion, and an annular platform is formed at the bottom of the flared portion.

[0033] The first sealing ring 20 is arranged on the annular platform.

[0034] The first crimping structure 30 has an extension portion that can extend into the flared portion. After the first crimping structure 30 is connected to the embedded pipe 10, the extension portion and the annular platform are used to squeeze the first sealing ring 20 so that the first sealing ring 20 is extended and abuts against the outer wall of the connecting pipeline.

[0035] The second sealing ring 40 is disposed at the end of the first crimping structure 30 away from the protruding portion.

[0036] The second crimping structure 50 is used to compress the second sealing ring 40 together with the first crimping structure 30 after being connected to the embedded pipe 10, so that the second sealing ring 40 is extended and abuts against the outer wall of the connecting pipeline.

[0037] Compared with the prior art, the embedded wall-penetrating pipe provided in the present embodiment has an embedded pipe 10, and a first sealing ring 20 is arranged on the annular platform of the flared portion in the embedded pipe 10, which can be extended into the flared portion through a first crimping structure 30, and the first sealing ring 20 is squeezed together by the extended portion of the first crimping structure 30 and the annular platform, so that the first sealing ring 20 is extended and abuts against the outer wall of the connecting pipeline, and a second sealing ring 40 and a second crimping structure 50 are arranged, and the second crimping structure 50 can squeeze the second sealing ring 40 together with the first crimping structure 30, so that the second sealing ring 40 is extended and abuts against the outer wall of the connecting pipeline, so that relative twisting of the telescopic tube 70 and the wall-penetrating pipe can be avoided, and the stability and practicality are good.

[0038] In some embodiments, the embedded pipe 10 may be Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 The end of the embedded pipe 10 is provided with a fixed flange for connecting the first crimping structure 30 and the second crimping structure 50 .

[0039] The other end of the embedded pipe 10 can be directly a flange, and of course a flared portion can also be provided, and is connected with a first sealing ring 20, a first crimping structure 30, a second sealing ring 40 and a second crimping structure 50, that is, the structures of the two ends are the same.

[0040] In some embodiments, the first crimping structure 30 may be configured as follows: Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2The first crimping structure 30 includes: a first pressure plate 31 and a first bolt 32. The first pressure plate 31 includes a connecting flange 311 and an insert 312 integrally connected to the connecting flange 311, and the insert 312 is a protruding portion. A plurality of first bolts 32 are provided, and each first bolt 32 is arranged on the first pressure plate 31 in an annular manner along the axis of the first pressure plate 31, and a spacing area is formed between any two adjacent first bolts 32.

[0041] The connecting flange is integrally connected to the insert 312, which can be understood as an integral casting or an integral welding. A plurality of first bolts 32 can fix the first pressure plate 31 and the fixed flange on the embedded pipe 10. The spacing area formed between two adjacent first bolts 32 can be understood as, for example, if four first bolts 32 are provided, then the area between the two adjacent first bolts 32 is the spacing area, and the four first bolts 32 are provided with four spacing areas.

[0042] In some embodiments, the connecting flange 311 may be formed as follows: Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 The axes of the connecting flange 311 and the insert sleeve 312 are arranged colinearly.

[0043] The connecting flange 311 and the insert sleeve 312 are coaxially arranged.

[0044] In some embodiments, the second crimping structure 50 may be configured as follows: Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 The second crimping structure 50 includes: a second pressure plate 51 and a second bolt 52. The second pressure plate 51 is arranged in parallel with the connecting flange 311. The end surface of the second pressure plate 51 close to the connecting flange 311 is provided with an annular extrusion groove for placing the second sealing ring 40. The second pressure plate 51 has a circular hole for the connecting pipeline to pass through. There are a plurality of second bolts 52, each second bolt 52 corresponds to each spacer area one by one, and each second bolt 52 passes through the second pressure plate 51, the connecting flange 311 and the fixed flange in sequence.

[0045] When connecting the second pressure plate 51 and the fixed flange, each second bolt 52 passes through the connecting flange 311, and the corresponding connecting flange 311 is provided with a through hole for each second bolt 52 to pass through. The annular extrusion groove can prevent the second pressure plate 51 from abutting against the first bolt 32 when the second bolt 52 drives the second pressure plate 51 to be pressed.

[0046] Specifically, the optional structure of the fixed flange, the first pressure plate 31, the first bolt 32, the second pressure plate 51 and the second bolt 52 in this embodiment is that eight threaded connection holes are provided on the fixed flange, four threaded connection holes and four through holes are provided on the first pressure plate 31, and four threaded connection holes are provided on the second pressure plate 51. The first bolt 32 passes through the threaded connection holes of the fixed flange and the threaded connection holes of the connecting flange 311 of the first pressure plate 31 in sequence, and the second bolt 52 passes through the threaded connection holes of the fixed flange, the through holes of the first pressure plate 31 and the threaded connection holes of the second pressure plate 51 in sequence. The through holes on the first pressure plate 31 are arranged in the interval area, and the threaded connection holes on the second pressure plate 51 are staggered with the threaded connection holes on the connecting flange 311.

[0047] In some embodiments, the annular extrusion groove may be formed as follows: Figure 2 See the structure shown. Figure 2 The annular extrusion groove passes through the inner wall of the circular hole, and an annular inclined portion is provided on the side wall of the annular extrusion groove away from the circular hole.

[0048] The annular extrusion groove passes through the inner wall of the circular hole and is connected to the circular hole. An annular inclined portion is provided on the side wall away from the circular hole. When the second sealing ring 40 is extruded by the annular extrusion groove, the second sealing ring 40 can be extended and stably abutted against the outer wall of the connecting pipeline.

[0049] In some embodiments, the embedded pipe 10 may be Figure 2 , Figure 3 See the structure shown. Figure 2 , Figure 3 A positioning ring 12 is provided on the outer wall of the embedded pipe 10 .

[0050] The positioning ring 12 can be understood as an annular protrusion provided on the outer wall of the embedded pipe 10, which can prevent the axial displacement of the embedded pipe 10 after cement pouring.

[0051] In some embodiments, the positioning ring 12 may be Figure 2 , Figure 3 See the structure shown. Figure 2 , Figure 3 The positioning ring 12 is provided with a plurality of positioning holes, and the plurality of positioning holes are arranged at annular intervals along the axis of the embedded pipe 10 .

[0052] The positioning ring 12 is provided with a plurality of positioning holes, and steel bars or rods can be inserted into the positioning holes, so as to increase the contact area after cement pouring and make the connection more stable.

[0053] In some embodiments, the pre-buried wall-penetrating pipe may be used as follows: Figure 2 , Figure 3 See the structure shown. Figure 2 , Figure 3The embedded wall-penetrating pipe also includes a positioning member 60, and a plurality of positioning members 60 are provided. The plurality of positioning members 60 are arranged in one-to-one correspondence with the plurality of positioning holes. Each positioning member 60 is an L-shaped rod, and one end of each positioning member 60 passes through the corresponding positioning hole.

[0054] The positioning member 60 can increase the contact area after cement pouring, making the connection more stable.

[0055] In some embodiments, the positioning holes may be Figure 2 , Figure 3 See the structure shown. Figure 2 , Figure 3 Each positioning hole is a regular polygonal hole, and the cross-section of each corresponding positioning member 60 inserted into the positioning hole is a polygonal structure corresponding to the positioning hole.

[0056] The regular polygonal structure can adjust the placement angle of the L-shaped rod after the positioning member 60 is inserted into the corresponding positioning hole, which can increase the contact area after cement pouring and make the connection more stable.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Pre-buried wall-penetrating pipe, characterized in that: include: The embedded pipe has a through-going tube cavity into which the connecting pipeline can extend, one end of the tube cavity is provided with a flared portion, and an annular platform is formed at the bottom of the flared portion; A first sealing ring, arranged on the annular platform; A first crimping structure, having a protruding portion that can be extended into the flared portion, wherein the first crimping structure is used to, after being connected to the embedded pipe, squeeze the first sealing ring through the protruding portion and the annular platform, so that the first sealing ring is extended and abuts against the outer wall of the connecting pipeline; A second sealing ring is arranged at an end of the first crimping structure away from the protruding portion; The second crimping structure is used to compress the second sealing ring together with the first crimping structure after being connected to the embedded pipe, so that the second sealing ring is extended and abuts against the outer wall of the connecting pipeline.

2. The embedded wall pipe according to claim 1, characterized in that: The end of the embedded pipe is provided with a fixing flange for connecting the first crimping structure and the second crimping structure.

3. The embedded wall-penetrating pipe according to claim 2, characterized in that: The first crimping structure comprises: A first pressure plate, comprising a connecting flange and an insert sleeve integrally connected to the connecting flange, wherein the insert sleeve is the extending portion; There are multiple first bolts, each of which is arranged on the first pressure plate in an annular manner along the axis of the first pressure plate, and a spacing area is formed between any two adjacent first bolts.

4. The embedded wall-penetrating pipe according to claim 3, characterized in that: The connecting flange and the axis of the insert are arranged colinearly.

5. The embedded wall-penetrating pipe according to claim 4, characterized in that: The second crimping structure comprises: A second pressure plate is arranged in parallel with the connecting flange, and an annular extrusion groove for placing the second sealing ring is provided on the end surface of the second pressure plate close to the connecting flange; the second pressure plate has a circular hole for the connecting pipeline to pass through; There are multiple second bolts, each of which corresponds to each of the spacers one by one, and each of the second bolts passes through the second pressure plate, the connecting flange and the fixing flange in sequence.

6. The embedded wall-penetrating pipe according to claim 5, characterized in that: The annular extrusion groove passes through the inner side wall of the circular hole, and an annular inclined surface portion is provided on the side wall of the annular extrusion groove away from the circular hole.

7. The embedded wall-penetrating pipe according to claim 1, characterized in that: A positioning ring is arranged on the outer wall of the embedded pipe.

8. The embedded wall-penetrating pipe according to claim 7, characterized in that: The positioning ring is provided with a plurality of positioning holes, and the plurality of positioning holes are arranged at annular intervals along the axis of the embedded pipe.

9. The embedded wall-penetrating pipe according to claim 8, characterized in that: The embedded wall-penetrating pipe also includes a positioning piece, and a plurality of the positioning pieces are provided. The plurality of the positioning pieces are arranged in one-to-one correspondence with the plurality of the positioning holes. Each of the positioning pieces is an L-shaped rod, and one end of each of the positioning pieces passes through the corresponding positioning hole.

10. The embedded wall-penetrating pipe according to claim 9, characterized in that: Each of the positioning holes is a regular polygonal hole, and the cross-section of each of the corresponding positioning members inserted into the positioning hole is a polygonal structure corresponding to the positioning hole.

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