A back spray mechanism

Abstract

The present invention provides a back spray mechanism, belonging to the technical field of shower equipment. It solves the problem that the existing back spray is easy to collide with the user during use. The back spray mechanism includes a pipe body and a water outlet having a water inlet end and a water outlet end. The pipe body is provided with a water outlet cavity. A through hole is penetrated through the side wall of the pipe body. The water inlet end of the water outlet is connected to the water outlet cavity. The water outlet is connected to the pipe body. The water outlet end of the water outlet is opposite to the through hole or the water outlet end of the water outlet extends out of the through hole. The back spray mechanism has the advantage of a wide range of applications.

Description

Technical Field

[0001] The invention belongs to the technical field of shower equipment and relates to a back spray mechanism. Background Art

[0002] Showers are commonly used shower equipment in people's daily lives, and back sprays are shower heads installed outside the main pipe of the shower. Existing back sprays can be fixed to the main pipe by welding, and in order to facilitate the replacement of the back spray, the back spray is often fixed to the side wall of the main pipe by threaded connection. Because the main pipe of some showers is in the shape of a round tube, its wall is relatively thin, which is not conducive to the connection of the back spray.

[0003] To this end, the applicant has designed a pipeline sealing structure and applied for a Chinese patent with the application number: 201921106270.5; its announcement number is: CN210165061U; the pipeline sealing structure includes a tubular pipe body and a connector, the side wall of the pipe body is penetrated with a connecting hole, the inner wall of the pipe body has a cylindrical connecting part protruding inward around the connecting hole, the end of the connector facing the connecting hole has a cylindrical connecting end, the connecting end passes through the connecting hole and is threadedly connected to the connecting part, and the end of the connector facing the pipe body is also provided with an annular sealing part, the sealing part is sleeved on the outside of the connecting end and the sealing part can seal between the outer wall of the pipe body and the connector. The pipeline sealing structure improves the connection strength and stability by setting the connecting part.

[0004] However, the existing back sprays all protrude significantly from the surface of the shower column. When installed in places with small space or insufficient water pressure, the user is close to the shower column during use and is very likely to collide with the back spray, which not only easily causes the back spray connection to loosen, but also easily causes damage to the human body, and has poor applicability. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems existing in the prior art and to propose a back spray mechanism, which solves the problem that the existing back spray is prone to collision with the user during use.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A back-spray mechanism comprises a pipe body and a water outlet having a water inlet end and a water outlet end, wherein the pipe body is provided with a water outlet cavity, a through hole is penetrated through the side wall of the pipe body, the water inlet end of the water outlet is connected with the water outlet cavity, and the water outlet is connected with the water outlet cavity. The water outlet is connected with the pipe body, and the water outlet end of the water outlet is opposite to the through hole or the water outlet end of the water outlet extends out of the through hole.

[0008] When the back spray mechanism is in use, water flows from the water outlet cavity in the tube body through the water inlet end into the water outlet part, and is sprayed out from the water outlet end of the water outlet part. The sprayed water flows out from the through holes on the side wall of the tube body to the outside of the tube body for the user to shower.

[0009] In the back spray mechanism, the water outlet is installed in the pipe body, so that the water outlet is not exposed outside the pipe body, which can effectively avoid collision with the user and cause damage to the back spray mechanism or the user. It is suitable for places with small space or insufficient water pressure and has a wide range of applications. In addition, during the shower process, because the back spray is not installed outside, the main pipe of the shower can also be used as a handrail for the elderly to support the body to avoid slipping and improve safety.

[0010] In the above-mentioned back-spray mechanism, the aperture of the through hole is larger than the width of the water outlet end of the water outlet, and the water outlet end can swing toward the hole wall of the through hole when subjected to radial force. The water outlet end of the water outlet extends out of the tube body, and can be manually manipulated by the user to adjust the water outlet angle of the water outlet to meet different showering needs. Even in places where the installation space is limited, the water outlet end of the water outlet can be deflected to meet the installation and use requirements at the same time, thereby increasing the scope of application.

[0011] In the above-mentioned back-spray mechanism, a water outlet shell is also provided in the tube body, the water outlet shell has the above-mentioned water outlet cavity, the water outlet shell is provided with a water outlet hole on one side facing the through hole, the outer side of the water outlet shell has a cylindrical limiting portion protruding outwards around the water outlet hole, and the water outlet member is rotatably provided in the limiting portion. Rotatably providing the water outlet member in the cylindrical limiting portion can not only locate the position of the water outlet member, but also assist in limiting the rotation angle of the water outlet member, avoiding excessive manual operation and causing wear on the water outlet end or the tube body, and is suitable for public places with frequent operations.

[0012] In the above-mentioned back-spray mechanism, the outer side surface of the water inlet end of the water outlet is spherical, and an annular sealing ring is arranged between the water outlet and the water outlet shell, the outer side of the limiting part is threadedly connected with a cylindrical limiting cap, and the inner side of the limiting cap has an inwardly protruding annular retaining edge, and when the limiting cap is screwed in relative to the limiting part, the retaining edge can abut against the spherical surface of the outer side of the water outlet. The outer side of the water inlet end is roughly spherical, which can not only facilitate the rotation of the entire water outlet relative to the water outlet shell, but also ensure the effectiveness of the sealing ring after rotation to avoid water leakage. At the same time, the threaded limiting cap can not only position the water outlet after rotation to prevent the water outlet from falling out of the water outlet shell, but also adjust the degree of tightening according to the needs of the user, and then adjust the adjustment force required when manually operating the water outlet end to meet the needs of different users.

[0013] In the above-mentioned back spray mechanism, the hole wall of the water outlet has a protruding annular convex edge, the sealing ring is arranged between the convex edge and the water outlet, and when the limit cap is screwed in relative to the limit part, the water outlet is tightly pressed against the sealing ring. The water outlet is tightly pressed against the sealing ring, which can not only ensure the sealing effect, but also provide damping for the water outlet when rotating, enhance the hand feeling when adjusting the angle of the water outlet, and further ensure the positioning of the water outlet after rotation, thereby ensuring the stability of the back spray water outlet.

[0014] In the above-mentioned back-spray mechanism, a spring is arranged on the other side of the water outlet housing relative to the through hole, and the two ends of the spring are respectively against the tube body and the water outlet housing. The water outlet end of the water outlet part is extended out of the through hole by the spring, and even if there is a collision or bump, the entire water outlet housing and the water outlet part can be retracted into the tube body to compress the spring, thereby reducing damage.

[0015] In the above-mentioned back-spray mechanism, the water outlet housing has a protruding column on the other side of the through hole, and the spring is sleeved on the outside of the protruding column. The protruding column provides support for the spring to prevent the spring from undergoing a large radial deformation, thereby preventing the water outlet end from colliding with the side wall of the through hole.

[0016] In the above-mentioned back-spray mechanism, the water outlet part includes a cylindrical main body and a booster part fixed in the water inlet end, a spiral water hole is provided in the booster part and / or between the booster part and the inner wall of the main body, a protruding annular limiting step is provided in the main body, and there is a spacing between one end of the booster part relative to the water outlet end and the limiting step, the inner side of the limiting step is the booster hole and the water flow area of ​​the booster hole is smaller than the water flow area of ​​the water outlet port.

[0017] Compared with the prior art, the water outlet of the back spray mechanism is installed inside the pipe body, avoiding exposure of the entire water outlet outside the pipe body, which can effectively avoid collision with the user and cause damage to the back spray mechanism or the user. It is suitable for places with small space or insufficient water pressure and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the back spray mechanism.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the back spray mechanism.

[0020] Figure 3 It is an enlarged view of the water outlet part in the back spray mechanism.

[0021] Figure 4 This is an exploded view of the water outlet parts in this back spray mechanism.

[0022] In the figure, 1, tube body; 11, through hole; 2, water outlet part; 21, water inlet end; 22, water outlet end; 23, main body; 24, booster; 25, limiting step; 26, booster hole; 3, water outlet shell; 31, water outlet cavity; 32, water outlet hole; 33, limiting part; 34, convex edge; 35, convex column; 4, sealing ring; 5, limiting cap; 51, retaining edge; 6, spring. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] like Figure 1 and Figure 2 As shown, the back spray mechanism includes a pipe body 1 and several water outlets 2 with a water inlet end 21 and a water outlet end 22, all of which are arranged in the pipe body 1, wherein the pipe body 1 is a shower main pipe, and a water outlet shell 3 with a water outlet cavity 31 is arranged in the pipe body 1. Several through holes 11 are penetrated and opened on the side wall of one side of the pipe body 1, and the several through holes 11 are evenly distributed on the pipe body 1 along the vertical direction, the number of through holes 11 is the same as the number of water outlets 2 and is arranged one by one, the water outlet end 22 of the water outlet 2 is opposite to the through hole 11 or the water outlet end 22 of the water outlet 2 extends into the through hole 11 from the inner port of the through hole 11, and because the connection structure of each water outlet 2 is the same, the structure of one of them is taken as an example for description below.

[0025] like Figure 3 As shown, a water outlet hole 32 is formed through the water outlet housing 3 on one side facing the through hole 11, and a cylindrical stopper 33 protruding outward is provided on the outer side of the water outlet housing 3 around the water outlet hole 32. The water outlet member 2 is rotatably arranged in the stopper 33, and the water inlet end 21 is connected with the water outlet cavity 31 through the water outlet hole 32. The water outlet end 22 of the water outlet member 2 is cylindrical, and the end of the water outlet end 22 passes through the pipe body 1 through the through hole 11. The aperture of the through hole 11 is larger than the width of the water outlet end 22 of the water outlet member 2, and the water outlet end 22 can swing toward the hole wall direction of the through hole 11 when subjected to radial force.

[0026] Specifically, the outer side surface of the water inlet end 21 of the water outlet 2 is roughly spherical, and the outer side of the limiting portion 33 is threadedly connected with a cylindrical limiting cap 5, and the inner side of the limiting cap 5 has a ring-shaped retaining edge 51 protruding inwardly. When the limiting cap 5 is screwed in relative to the limiting portion 33, the retaining edge 51 can abut against the spherical surface of the outer side of the water outlet 2. The hole wall of the water outlet 32 ​​has a protruding ring-shaped convex edge 34, and a ring-shaped sealing ring 4 is arranged between the convex edge 34 and the water outlet 2. When the limiting cap 5 is screwed in relative to the limiting portion 33, the water outlet 2 is tightly pressed against the sealing ring 4. In this embodiment, the inner side of the sealing ring 4 facing one end of the water outlet 2 has a tapered surface.

[0027] The other side of the water outlet housing 3 relative to the through hole 11 has several protruding truncated cone-shaped bosses 35, which are evenly distributed on the water outlet housing 3 along the vertical direction. A spring 6 is sleeved on the outer side of each boss 35, and both ends of the spring 6 are respectively against the pipe body 1 and the water outlet housing 3.

[0028] like Figure 4 As shown, the water outlet member 2 includes a cylindrical main body 23 and a booster member 24 that is tightly fitted and fixed in the water inlet end 21. There are several spiral water holes in the booster member 24 and / or between the booster member 24 and the inner wall of the main body 23. The main body 23 has a protruding annular limiting step 25 and a boss. One end of the booster member 24 relative to the water outlet end 22 abuts against the boss and has a spacing between the booster member 24 and the limiting step 25. The inner side of the limiting step 25 is a booster hole 26 and the water flow area of ​​the booster hole 26 is smaller than the water flow area of ​​the port of the water outlet end 22. The inner side of the main body 23 between the booster hole 26 and the port of the water outlet end 22 has a bell mouth.

[0029] When the back spray mechanism is in use, water flows out from the water outlet cavity 31 in the tube body 1 through the water outlet hole 32, and after being pressurized at the booster 24, it is sprayed out from the water outlet end 22 of the water outlet 2, and the sprayed water flows out from the through hole 11 on the side wall of the tube body 1 to the outside of the tube body 1 for the user to shower. During use, if the water outlet angle of the water outlet 2 is not good, the side of the water inlet end 21 of the water outlet 2 extending out of the through hole 11 can be manually moved so that the entire water outlet 2 swings to a suitable position relative to the limiter 33 to meet different usage requirements.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A back spray mechanism, comprising a pipe body (1) and a water outlet (2) having a water inlet end (21) and a water outlet end (22), wherein the pipe body (1) has a water outlet cavity (31), a through hole (11) is formed through the side wall of the pipe body (1), and the water inlet end (21) of the water outlet (2) is connected to the water outlet cavity (31), characterized in that: The water outlet member (2) is connected to the pipe body (1), and a water outlet end (22) of the water outlet member (2) extends out of the through hole (11). A water outlet housing (3) is also provided in the pipe body (1), and the water outlet housing (3) has the above-mentioned water outlet cavity (31). The water outlet member (2) is rotatably connected to the water outlet housing (3), and a spring (6) is provided on the other side of the water outlet housing (3) relative to the through hole (11), and two ends of the spring (6) respectively abut against the pipe body (1) and the water outlet housing (3).

2. A back-spraying mechanism according to claim 1, characterized in that: The diameter of the through hole (11) is greater than the width of the water outlet end (22) of the water outlet member (2), and the water outlet end (22) can swing towards the hole wall direction of the through hole (11) when subjected to radial force.

3. A back-spraying mechanism according to claim 2, characterized in that: A water outlet hole (32) is formed through the water outlet housing (3) on one side facing the through hole (11); a cylindrical limiting portion (33) protruding outwards is provided on the outside of the water outlet housing (3) around the water outlet hole (32); and the water outlet member (2) is rotatably arranged in the limiting portion (33).

4. A back-spraying mechanism according to claim 3, characterized in that: The outer side surface of the water inlet end (21) of the water outlet member (2) is spherical, and an annular sealing ring (4) is provided between the water outlet member (2) and the water outlet housing (3). The outer side of the limiting portion (33) is threadedly connected to a cylindrical limiting cap (5), and the inner side of the limiting cap (5) has an inwardly protruding annular retaining edge (51). When the limiting cap (5) is screwed inward relative to the limiting portion (33), the retaining edge (51) can abut against the spherical surface on the outer side of the water outlet member (2).

5. A back-spraying mechanism according to claim 4, characterized in that: The hole wall of the water outlet hole (32) is provided with a protruding annular convex edge (34), the sealing ring (4) is arranged between the convex edge (34) and the water outlet member (2), and when the limiting cap (5) is screwed in relative to the limiting portion (33), the water outlet member (2) is tightly pressed against the sealing ring (4).

6. A back-spraying mechanism according to claim 1, characterized in that: The water outlet housing (3) has a protruding boss (35) on the other side relative to the through hole (11), and the spring (6) is sleeved on the outside of the boss (35).

7. A back-spraying mechanism according to any one of claims 1 to 5, characterized in that: The water outlet member (2) comprises a cylindrical main body (23) and a booster member (24) fixed in the water inlet end (21); a spiral water hole is provided in the booster member (24) and / or between the booster member (24) and the inner wall of the main body (23); a protruding annular limiting step (25) is provided in the main body (23); a spacing is provided between one end of the booster member (24) relative to the water outlet end (22) and the limiting step (25); the inner side of the limiting step (25) is a booster hole (26); and the water flow area of ​​the booster hole (26) is smaller than the water flow area of ​​the port of the water outlet end (22).

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