Rotating shaft structure of shower support arm

Abstract

The utility model discloses a rotating shaft structure of a shower support arm, which optimizes the product structure, and is larger in flow and more stable in stress. The rotating shaft structure of the shower support arm comprises a shell and a shaft sleeve, the two sides of the shell are provided with a first rod piece and an opening respectively. A hollow rotating shaft is arranged in the shell, the rotating shaft communicates with the first rod piece, an annular water passing groove is formed in the circumferential surface of the rotating shaft, and a plurality of water passing holes communicating into the rotating shaft are formed in the bottom of the water passing groove; the shaft sleeve is sleeved on the circumferential surface of the rotating shaft in a dynamic sealing manner, and one side of the shaft sleeve is provided with a second rod piece communicated with the water passing groove; the second rod piece penetrates out of the opening of the shell; the axis of the first rod piece and the axis of the second rod piece are both perpendicular to the axis of the rotating shaft, and the perpendicular feet of the axis of the first rod piece and the axis of the second rod piece on the axis of the rotating shaft are the same point. No part is arranged in the rotating shaft, so that the flow is larger; the second rod piece and the first rod piece are located on the same plane all the time, stress is more stable, the appearance is neat and attractive, and the industrial design requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary ware devices, in particular to a rotating shaft structure of a shower arm. Background Art

[0002] A shower arm, also known as a shower rod or a shower bracket, is a part of a sanitary ware device. The shower arm itself is a water-passing component and can fix and adjust the position of a shower head (such as an overhead shower).

[0003] In the prior art, for example, a patent with the authorization publication number US8621681B2 discloses a hinged shower arm, which has an elbow communicating with the shower head and an arm communicating with the water supply end; the elbow has a certain length to expand the range of the shower head at one end, and the arm is usually fixed on the wall and pivotally connected with the other end of the elbow, so that the elbow can rotate relative to the arm to adjust the angle. In addition, a locking mechanism is provided at the pivoting joint of the two to limit the rotation, and then the elbow / shower head is fixed at a certain angle / position.

[0004] For other shower arms in the prior art, their general structures are similar to the above-mentioned patent. The axes of the arm and the elbow are respectively in two parallel planes, and they cannot be collinear. A shaft rod needs to be provided between the ends of the two as a rotating shaft. Since both the arm and the elbow are water-passing parts and the shaft rod must be in the water path of the shower arm, such a structure will not only reduce the flow rate of the shower arm and make it difficult to meet the user's needs, but also put forward higher requirements for the quality of the shaft rod: if the shaft rod is a plastic part, it may be difficult to meet the strength requirements of the product, and the service life of the shower arm will be shortened; if the shaft rod is a metal part, it must be guaranteed to be rust-proof, otherwise it will affect the water quality in the shower arm and further affect the user experience. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a rotating shaft structure of a shower arm, solve the problems existing in the prior art, optimize the product structure, have a larger flow rate and more stable force.

[0006] To achieve the above purpose, the solution of the utility model is:

[0007] A rotating shaft structure for a shower arm comprises a shell and a sleeve; a first rod and an opening are respectively provided on both sides of the shell; a hollow rotating shaft is provided in the shell, the rotating shaft is connected to the first rod, and an annular water groove is provided on the circumference of the rotating shaft, and a plurality of water holes connected to the rotating shaft are provided at the bottom of the water groove; the sleeve is dynamically and sealingly sleeved on the circumference of the rotating shaft, and a second rod connected to the water groove is provided on one side of the sleeve; the second rod passes through the opening of the shell; the axes of the first rod and the second rod are both perpendicular to the axis of the rotating shaft, and the feet of the axes of the first rod and the second rod on the axis of the rotating shaft are at the same point.

[0008] A rotating shaft seat, an adapter and a bottom cover are arranged in the shell; the rotating shaft and a connecting shaft parallel to the rotating shaft are arranged on the surface of the rotating shaft seat facing the inside of the shell, and a connecting groove is arranged on the surface of the rotating shaft seat facing away from the inside of the shell, and the two ends of the connecting groove are respectively connected with the rotating shaft and the connecting shaft; the adapter is statically and sealingly inserted into the end of the first rod, and the connecting shaft is statically and sealingly inserted into the side of the adapter; the bottom cover is statically and sealingly covered on the periphery of the connecting groove.

[0009] Preferably, the bottom cover and the rotating shaft seat are assembled by; the periphery of the connecting groove is provided with a step portion for the bottom cover to cooperate with, and the step portion is provided with a flange for welding.

[0010] Preferably, a partition is provided in the shell, a nut is embedded in the end of the rotating shaft, a screw is passed through the partition and threadedly connected in the nut to achieve locking of the rotating shaft on the partition; a slider and a slider slot are provided between the adapter and the partition, and a buckle and a buckle slot are provided between the adapter and the rotating shaft seat.

[0011] The rotating shaft structure of the shower arm also includes a locking member, an elastic member, a limiting member and an operating member; a first concave-convex portion is provided on the circumferential surface of the sleeve; the locking member is slidably fitted in the shell along the radial direction of the sleeve, and is provided with a second concave-convex portion matching the first concave-convex portion; the elastic member is arranged in the shell and acts on the locking member, so that the second concave-convex portion is engaged with the first concave-convex portion to achieve locking of the sleeve; the limiting member is movably fitted on the sliding path of the locking member, so that the locking member cannot be separated from the sleeve; the operating member is exposed to the shell and linked with the limiting member to drive the limiting member.

[0012] Preferably, the first concave-convex portion is a plurality of straight teeth with first inclined surfaces on both sides, and the second concave-convex portion is a plurality of straight teeth with second inclined surfaces on both sides.

[0013] Preferably, the elastic member is a spring; and one end of the locking member is provided with an axial groove for embedding the elastic member.

[0014] Preferably, the limiting member is provided with a giving opening for giving way to the elastic member, and giving steps are provided on both sides of the giving opening; when the limiting member is in the sliding path of the locking member, the giving step is misaligned with the locking member, and the locking member can slide; when the limiting member is out of the sliding path of the locking member, the giving step is opposite to the locking member, and the locking member can slide to embed into the giving step and compress the elastic member at the same time.

[0015] Preferably, the operating member is a button with two ends swingably engaged on the housing, and one end of the button is movably connected to the limiting member; the limiting member is provided with a hook hooked on the inner wall of the operating member.

[0016] Preferably, a latch for swinging engagement with the operating member is provided in the housing.

[0017] After adopting the above technical solution, the utility model has the following technical effects:

[0018] (1) The utility model comprises a first rod-rotating shaft-water hole-water groove-second rod to form a water path at the rotating shaft position of the shower arm, so as to realize the connection between the first rod and the second rod, and the water path of the rotating shaft is connected from the inside of the rotating shaft to the water groove on the circumference of the rotating shaft. When the sleeve rotates to any angle on the circumference of the rotating shaft, the rotating shaft can be connected to the second rod through its water groove. There are no other parts or structures in the rotating shaft, and the water flow is not blocked. The flow rate of the shower arm depends on the number and aperture of the water holes, which is easy to design and not affected by other factors. Compared with the structure of the prior art, it can achieve a larger and more stable flow rate, and the water quality will not be affected.

[0019] (2) When the sleeve rotates around the shaft, the angle of the second rod changes relative to the first rod, and the second rod and the first rod are always in the same plane, so the force is more stable. At the same time, the second rod can also rotate to a coaxial state with the first rod, so that the shower arm forms a straight line, which is neater and more beautiful in appearance and meets the requirements of industrial design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded view of a specific embodiment of the utility model;

[0021] Figure 2 It is a cross-sectional view of a specific embodiment of the utility model;

[0022] Figure 3 A three-dimensional diagram of a shaft sleeve according to a specific embodiment of the utility model;

[0023] Figure 4Stereogram of the locking part of the specific embodiment of the present utility model;

[0024] Figure 5 Stereogram of the limiting part of the specific embodiment of the present utility model;

[0025] Figure 6 Schematic diagram of the component applying part of the structure of the present utility model Figure 1 ;

[0026] Figure 7 Schematic diagram of the component applying part of the structure of the present utility model Figure 2 ;

[0027] Figure 8 Schematic diagram of the component applying part of the structure of the present utility model Figure 3 ;

[0028] Figure 9 Schematic diagram of the two-section shower arm applying the present utility model;

[0029] Figure 10 Schematic diagram of the three-section shower arm applying the present utility model;

[0030] Explanation of the reference numerals in the drawings:

[0031] 1 - housing; 11 - first rod; 12 - opening; 13 - partition; 131 - slider slot;

[0032] 2 - bushing; 21 - second rod; 22 - first concave-convex part; 221 - first inclined surface;

[0033] 3 - rotating shaft seat; 31 - rotating shaft; 311 - water passing groove; 312 - water passing hole; 313 - installation groove; 32 - connecting shaft; 33 - communicating groove; 331 - step part; 332 - flange; 34 - snap groove;

[0034] 4 - adapter; 41 - chute; 42 - guide groove; 43 - slider; 44 - snap;

[0035] 5 - bottom cover;

[0036] 6 - first sealing ring;

[0037] 7 - second sealing ring;

[0038] 8 - nut;

[0039] 9 - screw;

[0040] 10 - decorative cover;

[0041] 20 - third sealing ring;

[0042] 30 - Locking member; 301 - Second concave - convex part; 3011 - Second inclined surface; 302 - Axial groove;

[0043] 40 - Elastic member;

[0044] 50 - Limiting member; 501 - Relief opening; 502 - Relief step; 503 - Limiting surface; 504 - Hook;

[0045] 60 - Operating member;

[0046] 70 - Bolt;

[0047] 80 - Bolt seat; 801 - Claw;

[0048] 90 - Connector. Specific implementation mode

[0049] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail through specific embodiments below.

[0050] Refer to Figures 1-5 As shown, the present invention discloses a rotating shaft structure of a shower arm, including a housing 1 and a bushing 2;

[0051] On both sides of the housing 1, a first rod 11 and an opening 12 are respectively arranged; a hollow rotating shaft 31 is arranged inside the housing 1. The rotating shaft 31 is communicated with the first rod 11, and an annular water - passing groove 311 is arranged on the circumferential surface of the rotating shaft 31. A plurality of water - passing holes 312 communicating with the inside of the rotating shaft 31 are arranged at the bottom of the water - passing groove 311;

[0052] The bushing 2 is movably and sealingly sleeved on the circumferential surface of the rotating shaft 31, and a second rod 21 communicated with the water - passing groove 311 is arranged on one side thereof; the second rod 21 passes through the opening 12 of the housing 1;

[0053] The axis a of the first rod 11 and the axis b of the second rod 21 are both perpendicular to the axis c of the rotating shaft 31, and the feet of perpendiculars of the axis a of the first rod 11 and the axis b of the second rod 21 on the axis c of the rotating shaft 31 are the same point o.

[0054] With the above solution, the waterway at the position of the shower arm rotating shaft of the present utility model is composed of the first rod 11 - the rotating shaft 31 - the water passing hole 312 - the water passing groove 311 - the second rod 21, realizing the connection between the first rod 11 and the second rod 21. And the waterway of the rotating shaft 31 is connected from the inside of the rotating shaft 31 to the water passing groove 311 on the circumferential surface of the rotating shaft 31. When the shaft sleeve 2 rotates around the rotating shaft 31 to any angle, the rotating shaft 31 can be connected to the second rod 21 through its water passing groove 311. There are no other parts or structures inside the rotating shaft 31, and the water flow is not blocked. The flow rate of the shower arm depends on the number and aperture of the water passing holes 312, which is easy to design and not affected by other factors. Compared with the structure of the prior art, it can achieve a larger and more stable flow rate, and the water quality will not be affected. When the shaft sleeve 2 rotates around the rotating shaft 31, the second rod 21 changes its angle relative to the first rod 11, and the second rod 21 and the first rod 11 are always in the same plane, with more stable force. At the same time, the second rod 21 can also rotate to a state coaxial with the first rod 11, making the shower arm form a straight line, which is more neat and beautiful in appearance and meets the requirements of industrial design. In addition, the size of the opening 12 determines the swing range of the second rod 21.

[0055] The following shows specific embodiments of the present utility model.

[0056] The above rotating shaft 31 can be directly integrally formed in the housing 1 and connected to the first rod 11 through the waterway in the housing 1. However, considering the risk that the waterway with multiple turns may cause difficulties in demolding and cost increase, the present utility model provides a rotating shaft seat 3, a connecting piece 4 and a bottom cover 5 in the housing 1. The surface of the rotating shaft seat 3 facing the inside of the housing 1 is provided with the above rotating shaft 31 and a connecting shaft 32 parallel to the rotating shaft 31. And the surface of the rotating shaft seat 3 facing away from the inside of the housing 1 is provided with a communicating groove 33, and both ends of the communicating groove 33 are respectively communicated with the rotating shaft 31 and the connecting shaft 32. The connecting piece 4 is statically sealed and inserted at the end of the first rod 11, and the connecting shaft 32 is statically sealed and inserted at the side of the connecting piece 4. The bottom cover 5 is statically sealed and covered on the periphery of the communicating groove 33. Thus, the bottom cover 5 and the communicating groove 33 enclose a closed waterway between the connecting shaft 32 and the rotating shaft 31, and the first rod 11 is connected to the rotating shaft 31 through the connecting piece 4, the connecting shaft 32 and the communicating groove 33. During production, the rotating shaft seat 3, the connecting piece 4 and the bottom cover 5 can all be independently produced and demolded. And because the connecting shaft 32 is parallel to the rotating shaft 31, they can be demolded in the same direction, realizing the reduction of demolding difficulty. In addition, since the connecting piece 4 is inserted into the first rod 11, the connecting shaft 32 is inserted into the connecting piece 4, the shaft sleeve 2 is sleeved on the rotating shaft 31 and the second rod 21 is limited by the opening 12 to prevent the shaft sleeve 2 from moving axially on the rotating shaft 31.

[0057] Furthermore, a first sealing ring 6 is provided between the connecting shaft 32 and the adapter 4; a second sealing ring 7 is provided between the adapter 4 and the first rod member 11, both of which are to improve the sealing performance and prevent water leakage.

[0058] Meanwhile, the bottom cover 5 and the rotating shaft seat 3 are assembled and connected into a whole by means of welding, glue bonding, etc. to ensure the sealing performance. The preferred method is ultrasonic welding. A step portion 331 for the bottom cover 5 to fit is provided on the periphery of the communication groove 33, and a flange 332 for welding is provided on the step portion 331.

[0059] Secondly, in order to make the structure of the product more stable and prevent the rotating shaft seat 3 from shaking under water pressure, a partition plate 13 is provided in the housing 1. A nut 8 is embedded at the end of the rotating shaft 31. A screw 9 passes through the partition plate 13 and is threadedly connected to the nut 8 to lock the rotating shaft 31 on the partition plate 13, thereby fixing the rotating shaft seat 3. At the same time, a slider 43 and a slider slot 131 are provided between the adapter 4 and the partition plate 13 to realize the installation limit of the adapter 4. The slider slot 131 has a flared opening for the slider 43 to pass through and a constricted opening for preventing the slider 43 from disengaging from the slider slot 131. After the slider 43 is inserted into the slider slot 131 through the flared opening, it moves towards the constricted opening direction until the end of the adapter 4 is inserted into the first rod member 11. A buckle 44 and a buckle slot 34 are provided between the adapter 4 and the rotating shaft seat 3 to realize the reinforcement after connection.

[0060] In addition, the housing 1 is fitted with a decorative cover 10 for covering components such as the rotating shaft seat 3, the adapter 4, and the bottom cover 5 to achieve a neat appearance.

[0061] The rotating shaft 31 is provided with annular mounting grooves 313 on both axial sides of the water passing groove 311. Third sealing rings 20 are provided in both mounting grooves 313. The third sealing rings 20 are tightly fitted between the circumferential surface of the rotating shaft 31 and the inner wall of the shaft sleeve 2 to achieve the effect of dynamic sealing.

[0062] In order to lock the rotation of the shaft sleeve 2 on the rotating shaft 31 and keep the included angle between the second rod member 21 and the first rod member 11 unchanged after the shower arm adjusts the angle, the present utility model further designs a locking mechanism, which includes a locking member 30, an elastic member 40, a limiting member 50 and an operating member 60; a first concave-convex portion 22 is provided on the circumferential surface of the shaft sleeve 2; the locking member 30 is slidably fitted in the housing 1 along the radial direction of the shaft sleeve 2 and is provided with a second concave-convex portion 301 that matches the first concave-convex portion 22; the elastic member 40 is arranged in the housing 1 and acts on the locking member 30 to enable the second concave-convex portion 301 to engage with the first concave-convex portion 22 to lock the shaft sleeve 2; the limiting member 50 is movably fitted on the sliding path of the locking member 30 to prevent the locking member 30 from separating from the shaft sleeve 2; the operating member 60 is exposed outside the housing 1 and is linked with the limiting member 50 for driving the limiting member 50 to disengage from or enter the sliding path of the locking member 30. Thus, when the limiting member 50 is on the sliding path of the locking member 30, it abuts against the end of the locking member 30, and when the shaft sleeve 2 rotates, it cannot push the locking member 30 to compress the elastic member 40 through the first concave-convex portion 22 and the second concave-convex portion 301, so the shaft sleeve 2 cannot rotate; when the user drives the limiting member 50 through the operating member 60, the limiting member 50 disengages from the sliding path of the locking member 30 and no longer blocks the end of the locking member 30. When the shaft sleeve 2 rotates, it can push the locking member 30 to compress the elastic member 40 through the first concave-convex portion 22 and the second concave-convex portion 301, so the shaft sleeve 2 can rotate freely to adjust the relative angle between the second rod member 21 and the first rod member 11; at the same time, due to the elastic force of the elastic member 40, the limiting member 30 can maintain the locked state of the shaft sleeve 2. When the shaft sleeve 2 rotates, it will be subject to resistance from the limiting member 30 and will not shake or change the angle due to the gravity of the first rod member 11 or the second rod member 21 when the user does not apply force.

[0063] In some embodiments of the above locking mechanism, the first concave-convex portion 22 is a number of straight teeth with first inclined surfaces 221 on both sides, and the second concave-convex portion 301 is a number of straight teeth with second inclined surfaces 3011 on both sides. By designing the first inclined surface 221 and the second inclined surface 3011, the circumferential torque when the shaft sleeve 2 rotates can be more converted into the radial thrust for pushing the locking member 30 to slide, so as to push the locking member 30 more smoothly when the limiting member 50 does not block the locking member 30. It can be understood that the number of straight teeth of the first concave-convex portion 22 is reasonably designed according to the rotation range of the shaft sleeve 2 required by the product, and the number of straight teeth of the second concave-convex portion 301 is set to 3 to 5 to meet the requirements.

[0064] In some embodiments of the locking mechanism, a corresponding slide groove may be designed in the housing 1 to cooperate with the locking member 30 and guide the locking member 30. In this embodiment, a slide groove 41 for sliding cooperation with the locking member 30 is specifically provided on the peripheral surface of the adapter 4, and the slide groove 41 is parallel to the first rod 11. At the same time, a partition 13 is also provided in the housing 1, so that a channel for sliding cooperation with the locking member 30 is formed between the slide groove 41 and the partition 13 to guide the locking member 30; in addition, a guide groove 42 for active cooperation with the limiting member 50 may be provided at the end of the slide groove 41 to guide the movement of the limiting member 50.

[0065] In some embodiments of the locking mechanism, the elastic member 40 is a spring; one end of the locking member 30 is provided with an axial groove 302 for the elastic member 40 to be embedded.

[0066] Furthermore, the above-mentioned limiting member 50 is provided with a giving way opening 501 for giving way to the elastic member 40 to avoid the position and state of the moving elastic member 40 when the limiting member 50 moves, and giving way steps 502 are provided on both sides of the giving way opening 501; when the limiting member 50 is in the sliding path of the locking member 30, the giving way step 502 is misaligned with the locking member 30, the limiting surface 503 of the limiting member 50 is opposite to the locking member 30, and the locking member 30 cannot slide; on the contrary, when the limiting member 50 is out of the sliding path of the locking member 30, the limiting surface 503 is misaligned with the locking member 30, the giving way step 502 is opposite to the locking member 30, and the locking member 30 can slide to embed into the giving way step 502 and compress the elastic member 40 at the same time.

[0067] In some embodiments of the locking mechanism, the operating member 60 is a button with two ends swingingly engaged on the housing 1, and one end of the operating member 60 is movably connected to the limiting member 50; the limiting member 50 is provided with a hook 504 hooked on the inner wall of the operating member 60. When the user presses the operating member 60 away from one end of the limiting member 50, the limiting member 50 at the other end can be driven to break away from the sliding path of the locking member 30 by the swing of the operating member 60, thereby unlocking the rotation of the shaft sleeve 2; when the user presses the operating member 60 close to one end of the limiting member 50, the limiting member 50 can be simultaneously pressed back to the sliding path of the locking member 30, thereby locking the shaft sleeve 2. Since the operating member 60 is press-driven and the shower arm usually extends in the up and down directions, the position of the limit member 50 can be maintained after the user presses it, and the limit member 50 will not reset automatically, so that the user only needs to press the operating member 60 once to arbitrarily adjust the relative angle between the second rod 21 and the first rod 11, and press the operating member 60 again after the adjustment is completed to drive the limit member 50 to reset. There is no need to press the operating member 60 for a long time, and the operation is more convenient and quick, which is especially suitable for shower arms with longer first rod 11 and second rod 21.

[0068] Furthermore, a latch 70 for the operating member 60 to swing with is disposed in the housing 1 .

[0069] Secondly, the utility model further includes a latch seat 80 installed in the housing 1. The latch seat 80 is provided with a claw 801 for embedding the latch 70. The latch seat 80 can be fixed in the housing 1 by means of screw locking, such as fixed on the above-mentioned partition 13, and locked with the rotating shaft 31 by the same screw 9. The screw 9 sequentially passes through the latch seat 80 and the partition 13 and is threadedly connected to the nut 8 on the rotating shaft 31. Only one screw 9 can be used to fix two components in the housing 1, and the installation is simpler.

[0070] The installation steps of some structures of the utility model are as follows: After installing the locking member 30 and the elastic member 40 into the adapter 4, the whole is installed into the housing 1, and the whole is relatively fixed to the housing 1 through the sliding engagement of the slider 43 and the slider slot 131; then the bushing 2 is installed at the opening 12, and then the rotating shaft seat 3 is installed into the housing 1 to assemble it with the adapter 4 and the bushing 2, and the rotating shaft seat 3 is locked with screws; then the limiting member 50 is passed through the partition 13 to cooperate with the locking member 30; finally, the decorative cover 10 is ultrasonically welded to the housing 1.

[0071] The main improvement of the utility model lies in the rotating shaft structure between the first rod 11 and the second rod 21. In actual products, this rotating shaft structure can have various applications:

[0072] See Figure 6 , the first rods 11 and 11' of the two housings 1 and 1' can be connected into one rod, thereby forming a support arm with housings 1 at both ends; see Figure 7 , the first rod 11 and the second rod 21 of the housing 1 and the bushing 2 can be connected into one rod, thereby forming a support arm with a housing 1 and a bushing 2 at both ends respectively; see Figure 8 , the second rod 21 of the bushing 2 can be integrated with the joint 90 with an external thread for connecting the shower head, or the second rod 21 of the shaft head 2 can be integrated with the joint with an internal thread for connecting the water supply end. The above parts, combined with other parts of the rotating shaft structure disclosed in the utility model, can be combined to form a two-section or even more-section shower support arm to meet the needs of different scenarios and be more flexible to use.

[0073] The above embodiments and drawings do not limit the product form and style of the utility model. Any appropriate changes or modifications made by those of ordinary skill in the art shall be regarded as not departing from the patent scope of the utility model.

Claims

1. A rotating shaft structure of a shower arm, characterized in that: including a housing and a sleeve; The first rod and the opening are respectively provided on both sides of the shell; a hollow rotating shaft is provided in the shell, the rotating shaft is connected with the first rod, and an annular water groove is provided on the circumference of the rotating shaft, and a plurality of water holes connected to the rotating shaft are provided at the bottom of the water groove; The shaft sleeve is dynamically and sealingly sleeved on the circumference of the rotating shaft, and a second rod connected to the water channel is provided on one side of the shaft sleeve; the second rod passes through the opening of the housing; The axis of the first rod and the axis of the second rod are both perpendicular to the axis of the rotating shaft, and the feet of the axes of the first rod and the second rod on the axis of the rotating shaft are at the same point.

2. The rotating shaft structure of the shower arm according to claim 1, characterized in that: A rotating shaft seat, an adapter and a bottom cover are arranged in the shell; the rotating shaft and a connecting shaft parallel to the rotating shaft are arranged on the surface of the rotating shaft seat facing the inside of the shell, and a connecting groove is arranged on the surface of the rotating shaft seat facing away from the inside of the shell, and the two ends of the connecting groove are respectively connected with the rotating shaft and the connecting shaft; the adapter is statically and sealingly inserted into the end of the first rod, and the connecting shaft is statically and sealingly inserted into the side of the adapter; the bottom cover is statically and sealingly covered on the periphery of the connecting groove.

3. The rotating shaft structure of the shower arm according to claim 2, characterized in that: The bottom cover and the rotating shaft seat are assembled by; the periphery of the communicating groove is provided with a step portion for the bottom cover to cooperate with, and the step portion is provided with a flange for welding.

4. The rotating shaft structure of the shower arm according to claim 2, characterized in that: A partition is provided in the shell, a nut is embedded in the end of the rotating shaft, a screw is passed through the partition and threadedly connected in the nut to lock the rotating shaft on the partition; a slider and a slider slot are provided between the adapter and the partition, and a buckle and a buckle slot are provided between the adapter and the rotating shaft seat.

5. The rotating shaft structure of the shower arm according to claim 1, characterized in that: It also includes a locking member, an elastic member, a limiting member and an operating member; a first concave-convex portion is provided on the circumferential surface of the sleeve; the locking member is slidably fitted in the shell along the radial direction of the sleeve, and is provided with a second concave-convex portion matching the first concave-convex portion; the elastic member is arranged in the shell and acts on the locking member, so that the second concave-convex portion is engaged with the first concave-convex portion to achieve locking of the sleeve; the limiting member is movably fitted on the sliding path of the locking member, so that the locking member cannot be separated from the sleeve; the operating member is exposed to the shell and linked with the limiting member, and is used to drive the limiting member.

6. The rotating shaft structure of the shower arm according to claim 5, characterized in that: The first concave-convex part is a plurality of straight teeth with first inclined surfaces on both sides, and the second concave-convex part is a plurality of straight teeth with second inclined surfaces on both sides.

7. The rotating shaft structure of the shower arm according to claim 5, characterized in that: The elastic member is a spring; one end of the locking member is provided with an axial groove for embedding the elastic member.

8. The rotating shaft structure of the shower arm according to claim 7, characterized in that: The limiting member is provided with a giving opening for giving way to the elastic member, and giving steps are provided on both sides of the giving opening; when the limiting member is in the sliding path of the locking member, the giving step is misaligned with the locking member, and the locking member can slide; when the limiting member is out of the sliding path of the locking member, the giving step is opposite to the locking member, and the locking member can slide to embed into the giving step and compress the elastic member at the same time.

9. The rotating shaft structure of the shower arm according to claim 5, characterized in that: The operating member is a button with two ends swingingly fitted on the housing, and one end of the button is movably connected to the limiting member; the limiting member is provided with a hook hooked on the inner wall of the operating member.

10. The rotating shaft structure of the shower arm according to claim 9, characterized in that: A latch for swinging and cooperating with the operating member is arranged in the shell.

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