Waterproof piece for pipe penetrating through wall

Abstract

The utility model belongs to the technical field of plastic pipe through-wall waterproofing, and discloses a waterproof piece for pipe through-wall, which comprises an outer sleeve, telescopic sleeves capable of stretching relative to the outer sleeve are arranged at two ends of the outer sleeve, the telescopic sleeves are sleeved in the outer sleeve and can be stretched or shortened according to the thickness of a wall body, and one or more through holes for pipes to penetrate through are arranged on the end surfaces of the telescopic sleeves. The telescopic sleeve and the outer sleeve are movably sealed through an O-shaped ring, the end face of the telescopic sleeve and a pipe are sealed through an end face sealing ring, a circular bead is arranged at the front end of the outer surface of the telescopic sleeve, the periphery of the circular bead is wrapped by cement, the circular bead is extruded or stretched along with thermal expansion and cold contraction of the cement, and therefore sealing of the waterproof piece and a wall is kept. A check ring is arranged on the periphery of the shoulder and can block seepage water. The surface of the waterproof piece for the pipe to penetrate through the wall is provided with the shoulder, water seepage caused by different expansion coefficients of the pipe and cement is well solved, the length can be adjusted in a telescopic mode, applicability is wide, and the waterproof piece has great application prospects.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic pipe wall penetration waterproofing, in particular to a waterproofing piece for pipe wall penetration. Background Art

[0002] At present, more and more people in the field of home decoration pay attention to waterproofing. In areas such as bathrooms and balconies, plastic pipes need to be waterproofed after passing through the wall. The traditional method is to open a hole in the wall, pass the plastic pipe through, and then backfill with cement and apply waterproofing. However, due to the different expansion coefficients of plastic pipes and cement, a gap will be generated between the pipe and the wall when the temperature changes significantly, causing the waterproof layer to be damaged and water seepage on the wall. Utility Model Content

[0003] The utility model aims to provide a waterproof part for pipes passing through walls, so as to solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, the specific technical scheme of a waterproof member for pipes passing through walls of the utility model is as follows:

[0005] A waterproof part for pipes passing through walls, comprising an outer jacket, with telescopic sleeves that can be extended and retracted relative to the outer jacket being arranged at both ends of the outer jacket, the telescopic sleeves being arranged in the outer jacket and being extended or shortened according to the thickness of the wall, the end face of the telescopic sleeve having one or more through holes for the pipes to pass through, the telescopic sleeve and the outer jacket being movably sealed by an O-ring, the end face of the telescopic sleeve and the pipe being sealed by an end face sealing ring, the front end of the outer surface of the telescopic sleeve having a shoulder, the shoulder being wrapped around by cement, the shoulder being squeezed or stretched as the cement expands or contracts, thereby maintaining the sealing between the waterproof part and the wall, and the outer periphery of the shoulder having a retaining ring that can block water seepage.

[0006] Furthermore, the outer sleeve is a circular hollow tube with inner edges at both ends for limiting the telescopic sleeve and preventing the telescopic sleeve from sliding out of the outer sleeve.

[0007] Furthermore, the O-ring is fixedly arranged on the inner side of the inner edge to form a seal with the outer wall of the telescopic sleeve.

[0008] Furthermore, the telescopic sleeve is enclosed by two semicircular structures, and a buckle structure is provided on the inner surface of the semicircular structure. The buckle structure includes a male buckle and a female buckle, and the two semicircular structures are assembled by clamping the male buckle and the female buckle.

[0009] Furthermore, an outer convex edge is provided at one end of the outer surface of the telescopic sleeve that is sleeved with the outer sleeve, and the outer convex edge cooperates with the inner edge of the outer sleeve to form a sleeve structure. During the telescopic process, the outer wall of the telescopic sleeve forms a dynamic seal with the O-ring inside the outer sleeve.

[0010] Furthermore, a sealing ring groove is provided on the inner side of the through hole on the outer end surface of the telescopic sleeve, and the end surface sealing ring is arranged in the sealing ring groove.

[0011] Furthermore, the outer sleeve and the telescopic sleeve are both made of materials with a low linear expansion coefficient.

[0012] The utility model provides a waterproof part for pipes penetrating walls, which has the following advantages: the surface of the waterproof part for pipes penetrating walls has a shoulder, which effectively solves the water seepage caused by the different expansion coefficients of the pipes and cement, and the length can be adjusted telescopically, which has a wide range of applicability and great application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the waterproof member for pipes passing through walls of the utility model;

[0014] Figure 2 This is a cross-sectional view of the waterproof member for pipes passing through walls of the utility model;

[0015] Figure 3 This is a schematic diagram of the telescopic sleeve structure of the utility model;

[0016] Explanation of the markings in the figure: 1. outer sleeve; 11. inner edge; 2. telescopic sleeve; 21. through hole; 22. snap-fit ​​structure; 23. outer convex edge; 24. shoulder; 25. sealing ring groove; 3. O-ring; 4. end face sealing ring; 5. pipe. DETAILED DESCRIPTION

[0017] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a waterproof part for pipes passing through walls of the utility model in conjunction with the accompanying drawings.

[0018] like Figure 1 Figure 2 As shown, a waterproof part for pipes passing through walls of the utility model comprises an outer jacket 1, and telescopic sleeves 2 which can be telescopic relative to the outer jacket 1 are arranged at both ends of the outer jacket 1. The telescopic sleeve 2 is arranged in the outer jacket 1 and can be extended or shortened according to the thickness of the wall. The end face of the telescopic sleeve 2 has one or more through holes 21 for the pipe 5 to pass through. The telescopic sleeve 2 and the outer jacket 1 are movably sealed by an O-ring 3, and the end face of the telescopic sleeve 2 and the pipe 5 are sealed by an end face sealing ring 4.

[0019] The outer sleeve 1 is a circular hollow tube with inner edges 11 at both ends, which are used to limit the telescopic sleeve 2 and prevent the telescopic sleeve from slipping out of the outer sleeve 1. The O-ring 3 is fixedly arranged inside the inner edge 11 to form a seal with the outer wall of the telescopic sleeve 2.

[0020] like Figure 3As shown, the telescopic sleeve 2 is formed by enclosing two semicircular structures, and the inner surface of the semicircular structure is provided with a buckle structure 22, which includes a male buckle and a female buckle, and the two semicircular structures are assembled by clamping the male buckle and the female buckle. The telescopic sleeve is divided into two petal structures for easy construction. The outer surface of the telescopic sleeve 2 is provided with an outer convex edge 23 at one end of the sleeve 1, and the outer convex edge 23 cooperates with the inner edge 11 of the sleeve 1 to form a sleeve structure. During the telescopic process, the outer wall of the telescopic sleeve 2 forms a dynamic seal with the O-ring 3 on the inner side of the sleeve 1. The front end of the outer surface of the telescopic sleeve 2 has a shoulder 24. When in use, the shoulder 24 is wrapped with cement. Due to the different expansion coefficients of cement and plastic, the shoulder 24 is squeezed or stretched with the thermal expansion and contraction of cement, thereby maintaining the sealing of the waterproof part and the wall. In addition, the outer periphery of the shoulder 24 has a retaining ring, which can also be used as a water-stopping structure. Even if water penetrates, it will be blocked by the shoulder 24 and will not penetrate into the wall. A sealing ring groove 25 is provided inside the through hole 21 on the outer end surface of the telescopic sleeve 2. An end surface sealing ring 4 is arranged in the sealing ring groove 25. The end surface sealing ring 4 is used to achieve sealing between the pipe and the waterproof component.

[0021] Preferably, both the outer sleeve 1 and the telescopic sleeve 2 are made of materials with a low linear expansion coefficient.

[0022] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A waterproof part for a pipe (5) to penetrate a wall, comprising a jacket (1), characterized in that: Both ends of the outer jacket (1) are provided with telescopic sleeves (2) which can be telescopic relative to the outer jacket (1). The telescopic sleeve (2) is sleeved in the outer jacket (1) and is extended or shortened according to the thickness of the wall. The end face of the telescopic sleeve (2) has one or more through holes (21) for the pipe (5) to pass through. The telescopic sleeve (2) and the outer jacket (1) are movably sealed by an O-ring (3). The end face of the telescopic sleeve (2) and the pipe (5) are sealed by an end face sealing ring (4). The front end of the outer surface of the telescopic sleeve (2) has a shoulder (24). The shoulder (24) is surrounded by cement. The shoulder (24) is squeezed or stretched as the cement expands or contracts, thereby maintaining the sealing between the waterproof part and the wall. The outer periphery of the shoulder (24) has a retaining ring, which can prevent water seepage.

2. The waterproof member for pipe (5) passing through a wall according to claim 1, characterized in that: The outer sleeve (1) is a circular hollow tube (5) having inner edges (11) at both ends, which are used to limit the telescopic sleeve (2) and prevent the telescopic sleeve (2) from sliding out of the outer sleeve (1).

3. The waterproof member for pipe (5) passing through a wall according to claim 2, characterized in that: The O-ring (3) is fixedly arranged on the inner side of the inner edge (11) and is used to form a seal with the outer wall of the telescopic sleeve (2).

4. The waterproof member for pipe (5) passing through a wall according to claim 1, characterized in that: The telescopic sleeve (2) is formed by enclosing two semicircular structures. The inner surface of the semicircular structure is provided with a buckle structure (22). The buckle structure (22) comprises a male buckle and a female buckle. The two semicircular structures are assembled by clamping the male buckle and the female buckle.

5. The waterproof part for pipe (5) passing through a wall according to claim 3, characterized in that: An outer convex edge (23) is provided at one end of the outer surface of the telescopic sleeve (2) that is sleeved with the outer sleeve (1). The outer convex edge (23) cooperates with the inner edge (11) of the outer sleeve (1) to form a sleeve-joined structure. During the telescopic process, the outer wall of the telescopic sleeve (2) forms a dynamic seal with the O-ring (3) on the inner side of the outer sleeve (1).

6. The waterproof member for pipe (5) passing through a wall according to claim 1, characterized in that: The inner side of the through hole (21) on the outer end surface of the telescopic sleeve (2) is provided with a sealing ring groove (25), and the end surface sealing ring (4) is arranged in the sealing ring groove (25).

7. The waterproof member for pipe (5) passing through a wall according to claim 1, characterized in that: The outer sleeve (1) and the telescopic sleeve (2) are both made of materials with a low linear expansion coefficient.

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