Pipe joint water seepage prevention structure of concealed shower head embedded box

Abstract

The utility model discloses a pipe joint water seepage prevention structure of a concealed shower head embedded box. The pipe joint water seepage prevention structure comprises a box body, a connecting pipe, a water inlet joint, an external nut and an inner sealing bush, a third pipe wall and a third thread are arranged on the side, facing the inner cavity of the box body, of the water inlet connector. The inner sealing bush is provided with a bush pipe wall and a bush ring table; a sealing ring groove for embedding a sealing ring is formed in the wall of the bushing; the lining pipe wall can stretch into the water inlet connector from the third pipe wall, and the sealing ring abuts against one pipe wall. The external nut is matched with the third thread, and the bush ring table is arranged between the third pipe wall and the external nut in an abutting mode. According to the utility model, a user can overhaul and replace the sealing element at the joint without breaking the wall body or dismantling the water inlet joint, so that the maintenance cost is obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bathroom accessories, and particularly relates to a water seepage prevention structure for a pipe joint of a concealed shower embedded box. Background Art

[0002] During the installation process of a concealed shower, generally, a PPR pipe joint with threads is first tightened onto the valve body or the embedded box, then the PPR pipe is cut according to the installation distance, and finally the cut PPR pipe is heat-melted and connected to the PPR pipe joint. However, the PPR pipe joint only relies on threaded connection to achieve sealing, and there is still room for improvement in the sealing effect of such a connection method.

[0003] For this reason, a concealed shower embedded box structure with stronger sealing performance has been introduced in the market. For example, an embedded box introduced in the patent number CN202321156586.1; a pipe joint is installed on the connecting pipe, the connecting pipe is provided with a first thread and a first pipe wall, the pipe joint is provided with a second thread and a second pipe wall, the first thread is screwed with the second thread, and the first pipe wall is matched with the second pipe wall and presses a first sealing ring to achieve double sealing of the connecting pipe and the pipe joint, improving the sealing performance between the pipe joint and the box body.

[0004] However, in this sealing structure, the two sealing rings 21 and 22 of the connecting pipe 11 and the pipe joint 12 are arranged at the card slots and steps of the pipe joint 12. After long-term use and aging, the sealing rings will age and fail, and at this time, water leakage will occur at the water inlet end. At this time, if there is a need to repair the sealing structure at the pipe joint, since the pipe joint is completely buried in the wall and the sealing ring is arranged at the pipe joint, the connection state of the connecting pipe and the pipe joint cannot be repaired, and the wall needs to be demolished for maintenance, which is complex and costly. Therefore, further improvement is needed. Summary of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a water seepage prevention structure for a pipe joint of a concealed shower embedded box.

[0006] A technical solution adopted by an embodiment of the utility model to solve its technical problems is: a water seepage prevention structure for a pipe joint of a concealed shower embedded box, comprising: a box body, a connecting pipe, a water inlet joint, an external nut, and an internal sealing bushing;

[0007] The box body is provided with a water inlet, and the water inlet joint is fixed to the water inlet; the connecting pipe is provided with a first pipe wall and a first thread, and the water inlet joint is provided with a second pipe wall and a second thread; the first pipe wall can extend into the second pipe wall, and the first thread can cooperate with the second thread;

[0008] On one side facing the inner cavity of the box body, the water inlet joint is provided with a third pipe wall and a third thread; the inner sealing bushing is provided with a bushing pipe wall and a bushing ring platform; the bushing pipe wall is provided with a sealing ring groove for embedding a sealing ring; the bushing pipe wall can extend into the water inlet joint from the third pipe wall and press the sealing ring against the first pipe wall; the external nut is matched with the third thread, and the bushing ring platform is pressed between the third pipe wall and the external nut.

[0009] Optionally, at least two sealing ring grooves are arranged at intervals on the third pipe wall.

[0010] Optionally, a plurality of ratchet rings are arranged on the outer side of the first pipe wall, and the ratchet rings are buried in the box body.

[0011] Optionally, a valve body and a valve seat connecting piece are arranged in the box body; the valve seat connecting piece is connected between the valve body and the water inlet joint; the valve seat connecting piece is provided with a second ring platform; the second ring platform can be abutted against the bushing ring platform; the second ring platform and the bushing ring platform are pressed between the third pipe wall and the external nut.

[0012] Optionally, a sealing ring is arranged between the second ring platform and the bushing ring platform.

[0013] The beneficial effects of the present utility model are as follows: The water inlet joint is fixed to the box body by hot melting, and after being threadedly connected with the connecting pipe, it is buried in the wall body; during use, through the third pipe wall on one side of the box body, the inner sealing bushing can be installed into the water inlet joint, and the head of the inner sealing bushing extends to the first pipe wall to realize the sealing of the first pipe wall and the connecting pipe by using the sealing ring; the bushing ring platform of the inner sealing bushing is pressed between the third pipe wall and the external nut to realize the sealing of the third pipe wall and the water inlet joint. In the present utility model, the inner sealing bushing that can be disassembled and installed inside the box body is used to realize the sealing effect on the water inlet joint and the connecting pipe; the sealing rings are all arranged on the detachable inner sealing bushing pipe wall or end face and can be disassembled and installed together with the inner sealing bushing; users can repair and replace the sealing parts at the connection without chiseling the wall or removing the water inlet joint, and the maintenance cost is significantly reduced.

[0014] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given below in conjunction with the accompanying drawings and are described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

[0016] Figure 1 is a schematic structural diagram of the embedded box of the present utility model;

[0017] Figure 2 is Figure 1The enlarged schematic diagram of point A in the middle;

[0018] Figure 3 for Figure 1 Schematic diagram of the exploded view of the embedded box.

[0019] Description of main component symbols:

[0020] 10. Box body; 11. Water inlet; 20. Connecting pipe; 21. First pipe wall; 22. First thread; 30. Water inlet joint; 31. Second pipe wall; 32. Second thread; 33. Third pipe wall; 34. Third thread; 35. Ratchet ring; 40. External nut; 50. Internal sealing bushing; 51. Bushing pipe wall; 52. Bushing ring platform; 53. Sealing ring groove; 60. Valve body; 70. Valve seat connector; 71. Second ring platform. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0025] Example

[0026] Reference Figures 1 to 3 The utility model provides a water-proof structure for the pipe joint of a concealed shower embedded box, comprising: a box body 10, a connecting pipe 20, a water inlet joint 30, an external nut 40 and an internal sealing bushing 50;

[0027] The box body 10 is provided with a water inlet 11, and the water inlet joint 30 is fixed to the water inlet 11; the connecting pipe 20 is provided with a first pipe wall 21 and a first thread 22, and the water inlet joint 30 is provided with a second pipe wall 31 and a second thread 32; the first pipe wall 21 can extend into the second pipe wall 31, and the first thread 22 can cooperate with the second thread 32;

[0028] A third tube wall 33 and a third thread 34 are provided on the side of the water inlet joint 30 facing the inner cavity of the box body 10; the inner sealing bushing 50 is provided with a bushing tube wall 51 and a bushing ring platform 52; the bushing tube wall 51 is provided with a sealing ring groove 53 for embedding a sealing ring; the bushing tube wall 51 can extend into the water inlet joint 30 from the third tube wall 33, and the sealing ring is pressed against a tube wall; the external nut 40 cooperates with the third thread 34, and the bushing ring platform 52 is pressed between the third tube wall 33 and the external nut 40.

[0029] In the utility model, the water inlet joint 30 is fixed to the box body 10 by hot melting, and is threadedly connected with the connecting pipe 20 and then buried in the wall; during use, the inner sealing bushing 50 can be installed in the water inlet joint 30 through the third pipe wall 33 on one side of the box body 10, and the head of the inner sealing bushing 50 extends to the first pipe wall 21 to achieve the sealing of the first pipe wall 21 and the connecting pipe 20 by using the sealing ring; the bushing ring 52 of the inner sealing bushing 50 is set between the third pipe wall 33 and the external nut 40 to achieve the sealing of the third pipe wall 33 and the water inlet joint 30. In the utility model, the inner sealing bushing 50 that can be disassembled and installed inside the box body 10 is used to achieve the sealing effect of the water inlet joint 30 and the connecting pipe 20; the sealing rings are all set on the removable pipe wall or end face of the inner sealing bushing 50, and can be disassembled and installed together with the inner sealing bushing 50; the user does not need to break the wall or remove the water inlet joint 30, and can inspect and replace the seal at the connection, and the maintenance cost is significantly reduced.

[0030] In this embodiment, in order to improve the sealing performance between the inner sealing bushing 50 and the end face of the water inlet pipe, at least two sealing ring grooves 53 are arranged at intervals on the third pipe wall 33 .

[0031] In this embodiment, a plurality of ratchet rings 35 are disposed on the outer side of the first tube wall 21 . The ratchet rings 35 are embedded in the box body 10 . The cooperation between the ratchet rings 35 and the box body 10 can improve the reliability of the hot-melt connection between the two.

[0032] In this embodiment, a valve body 60 and a valve seat connector 70 are arranged inside the box body 10; the valve seat connector 70 is connected between the valve body 60 and the water inlet joint 30; the valve seat connector 70 is provided with a second annular platform 71; the second annular platform 71 can be abutted against the bushing annular platform 52; the second annular platform 71 and the bushing annular platform 52 are abutted between the third pipe wall 33 and the external nut 40. The external nut 40 can simultaneously lock and fix the inner sealing bushing 50 and the valve seat connector 70.

[0033] Specifically, in order to improve the sealing performance of the abutting surface between the inner sealing bushing 50 and the valve seat connector 70, a sealing ring is arranged between the second annular platform 71 and the bushing annular platform 52.

[0034] In this embodiment, the valve seat connector 70 is a telescopic member, and the connection method can refer to the technical solution disclosed in the patent document with the publication number of CN218818425U.

[0035] Certainly, the present invention is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A water-proof structure for a pipe joint of a concealed shower embedded box, characterized in that: include: A box body (10), a connecting pipe (20), a water inlet joint (30), an external nut (40) and an internal sealing bushing (50); The box body (10) is provided with a water inlet (11), and the water inlet joint (30) is fixed to the water inlet (11); the connecting pipe (20) is provided with a first pipe wall (21) and a first thread (22), and the water inlet joint (30) is provided with a second pipe wall (31) and a second thread (32); the first pipe wall (21) can extend into the second pipe wall (31), and the first thread (22) can cooperate with the second thread (32); The water inlet joint (30) is provided with a third tube wall (33) and a third thread (34) on the side facing the inner cavity of the box body (10); the inner sealing bushing (50) is provided with a bushing tube wall (51) and a bushing ring platform (52); the bushing tube wall (51) is provided with a sealing ring groove (53) for embedding a sealing ring; the bushing tube wall (51) can extend from the third tube wall (33) into the water inlet joint (30) and abut the sealing ring against the tube wall; the external nut (40) cooperates with the third thread (34), and the bushing ring platform (52) is abutted between the third tube wall (33) and the external nut (40).

2. The anti-seepage structure of the pipe joint of the concealed shower embedded box according to claim 1, characterized in that: The third tube wall (33) is provided with at least two sealing ring grooves (53) at intervals.

3. The anti-seepage structure of the pipe joint of the concealed shower embedded box according to claim 1, characterized in that: A plurality of ratchet rings (35) are arranged on the outer side of the first tube wall (21), and the ratchet rings (35) are embedded in the box body (10).

4. The anti-seepage structure of the pipe joint of the concealed shower embedded box according to claim 1, characterized in that: The box body (10) is provided with a valve body (60) and a valve seat connecting piece (70); the valve seat connecting piece (70) is connected between the valve body (60) and the water inlet joint (30); the valve seat connecting piece (70) is provided with a second ring platform (71); the second ring platform (71) can abut against the bushing ring platform (52); the second ring platform (71) and the bushing ring platform (52) are abutted between the third pipe wall (33) and the external nut (40).

5. The anti-seepage structure of the pipe joint of the concealed shower embedded box according to claim 4, characterized in that: A sealing ring is provided between the second ring platform (71) and the bushing ring platform (52).

Images