Back rubbing chair structure

Abstract

The invention discloses a back rubbing chair structure, and belongs to the technical field of back rubbing chairs, the back rubbing chair structure comprises a sliding plate, a chair body, a back rubbing mechanism, a threaded sleeve, a backrest, a sliding groove, an adjusting groove, a protection box, a supporting mechanism and two rotating shafts, fixing blocks are arranged at the two ends of the adjusting groove, and a first screw rod is arranged between the two fixing blocks through a bearing; a driven gear is arranged at one end of the first screw rod, a half gear and a driving gear are arranged on the rotating shaft, the back rubbing mechanism, the sliding plate and the chair body are combined, so that a user can enjoy back rubbing service in a sitting posture, the bathing comfort and convenience are improved, and the motor drives the half gear to be meshed with the driven gear to drive the first screw rod to rotate; under the structure of the two half gears, the two driving gears are meshed with each other, bidirectional rotation of the first screw rod is achieved, the threaded sleeve moves up and down in the adjusting groove in a reciprocating mode, then the positions of the sliding plate and the back rubbing mechanism relative to the backrest are adjusted, and therefore the back rubbing experience of a user is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of back-rubbing chairs and provides a back-rubbing chair structure. Background Art

[0002] Rubbing your back while bathing is an important part of daily cleaning and health care. It not only removes dirt and dead skin on the back, but also promotes blood circulation, relieves fatigue, enhances immunity, etc. Rubbing your back can promote blood circulation, help relax muscles and relieve fatigue.

[0003] However, when taking a bath, people usually rub their backs with a back-rubbing tool, and common back-rubbing tools include long-handled bath towels, bath brushes or special back-rubbing tools. This back-rubbing method is too time-consuming and laborious, and during the back-rubbing process, both hands need to hold the back-rubbing tool, which makes it impossible for both hands to react quickly when slipping. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a back-scrubbing chair structure, which aims to solve the problem that the back is generally scrubbed with a back-scrubbing tool when taking a bath. Common back-scrubbing tools include long-handled bath towels, bath brushes or special back-scrubbing tools. This back-scrubbing method is too time-consuming and labor-intensive, and during the back-scrubbing process, both hands need to hold the back-scrubbing tool, which leads to the problem that both hands cannot react quickly when slipping.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a back-rubbing chair structure, comprising a slide plate and a chair body, wherein the front end surface of the slide plate is provided with a back-rubbing mechanism, the rear end surface of the slide plate is provided with a threaded sleeve, the chair body is provided with a backrest, the front end surface of the backrest is provided with a slide groove, the slide groove is provided with an adjustment groove, both ends of the adjustment groove are provided with fixed blocks, and a first screw rod is provided between the two fixed blocks via a bearing, one end of the first screw rod is provided with a driven gear, a protective box and a supporting mechanism are provided below the chair body, and the driven gear extends into the protective box, the Two rotating shafts are rotatably arranged in the protective box, and half gears and driving gears are arranged on the rotating shafts, and the two half gears are respectively meshed with the driven gears and are symmetrically arranged on both sides of the driven gears, the two driving gears on the two rotating shafts are meshed with each other, and one of the rotating shafts is driven by a motor, the slide plate is slidably connected to the backrest and is located in the slide groove, and the back rubbing board is located at the front end surface of the backrest body, the threaded sleeve is threadedly connected to the first screw rod, is located on the first screw rod, and also passes through the adjustment groove.

[0007] Furthermore, the slide groove is provided with two positioning grooves, support blocks are provided at both ends of the positioning groove, and a positioning rod is provided between the two support blocks. The rear end surface of the slide plate is also provided with two positioning blocks, and the two positioning blocks are respectively slidably connected to the corresponding positioning rods, and are sleeved on the positioning rods, and also pass through the corresponding positioning grooves.

[0008] Furthermore, the volumes of the two half gears are both larger than the volume of the driven gear, and when any of the half gears meshes with the driven gear and rotates 180°, the threaded block moves from one end of the adjusting groove to the other end of the adjusting groove.

[0009] Furthermore, the back-rubbing mechanism includes a fastening plate and a back-rubbing board, the fastening plate is provided with a plurality of fastening sleeves, the rear end surface of the back-rubbing board is provided with a plurality of rings, the front end surface of the slide plate has a plurality of vertical grooves, a fixing rod is provided in the vertical groove, the back-rubbing board is supported against the slide plate through a plurality of the rings, and is located on the front end surface of the slide plate, and the ring is sleeved on the fixing rod, the fastening plate is fixedly connected to the slide plate by screws, and is located above the slide plate, and a plurality of the fastening sleeves are also respectively supported against the top of the corresponding rings.

[0010] Furthermore, the back-rubbing mechanism also includes a water baffle, which is arranged above the fastening plate through Velcro and also covers the top of the screw.

[0011] Furthermore, the back-scrubbing chair structure also includes a protective cover and a enclosure, the protective cover is fixedly connected to the backrest and covers the rear end surface of the backrest, and the support block and the fixed block are both located in the protective cover, and the enclosure is fixedly connected to the chair body and is arranged in a C shape on the outside of the chair body.

[0012] Furthermore, the back-scrubbing chair structure also includes a first water-blocking curtain, a second water-blocking curtain and a guide block, one end of the first water-blocking curtain and the second water-blocking curtain are both provided with a convex block, the upper and lower ends of the back-scrubbing board are both provided with convex grooves, the first water-blocking curtain is fixedly connected to the protective cover and is located on the protective cover, the first water-blocking curtain is also slidably connected to the back-scrubbing board through the convex block and is located above the back-scrubbing board, and the convex block is located in the corresponding convex groove, the second water-blocking curtain is fixedly connected to the chair body and is located above the chair body, the second water-blocking curtain is also slidably connected to the back-scrubbing board through the convex block and is located below the back-scrubbing board, and the convex block is located in the corresponding convex groove, the first water-blocking curtain and the second water-blocking curtain both cover the front end surface of the backrest, the guide block is fixedly connected to the chair body and is located above the chair body, and is also located on one side of the second water-blocking curtain.

[0013] The beneficial effects of the present invention are:

[0014] 1. A back-scrubbing chair structure of the present invention provides a convenient back-scrubbing function for users through the back-scrubbing mechanism on the front end surface of the slide board, so that users can easily scrub their backs without bending or turning around. The combination of the slide board and the chair body enables users to enjoy the back-scrubbing service in a sitting position, which increases the comfort and convenience of bathing. The motor drives the half gear on the rotating shaft to engage with the driven gear, thereby driving the first screw to rotate. At the same time, under the structure of the two half gears, the two driving gears engage with each other, thereby realizing the bidirectional rotation of the first screw, so that the threaded sleeve moves back and forth up and down in the adjusting groove, and then adjusts the position of the slide board and the back-scrubbing mechanism relative to the backrest, thereby improving the user's back-scrubbing experience and effectively improving the safety of bathing.

[0015] 2. A back-scrubbing chair structure of the present invention uses screws to fix the fastening plate with the slide plate, thereby ensuring the stability of the back-scrubbing board. The back-scrubbing board is supported against the slide plate by the sleeve ring and is sleeved on the fixing rod. This design not only ensures the stability of the back-scrubbing board, but also facilitates disassembly and cleaning. The water baffle is arranged above the fastening plate with Velcro and covers the screws, thereby effectively preventing bath water from splashing into the gap between the screws and the fastening plate, thereby extending the service life of the back-scrubbing mechanism. The protective cover covers the backrest. The rear end surface of the back protects the internal mechanical structure and prevents the user from accidentally touching it during bathing. The enclosure is C-shaped and arranged on the outside of the chair body, which not only prevents bath water from splashing in, but also increases the sense of security during bathing; the first water retaining curtain and the second water retaining curtain are slidably connected with the back scrubbing board using the convex block, covering the front end surface of the backrest, effectively preventing bath water from splashing into the positioning groove and the adjustment groove. The guide block is located on one side of the second water retaining curtain, which not only guides the bath water flow, but also increases the overall aesthetics of the back scrubbing chair structure.

[0016] 3. A back-scrubbing chair structure of the present invention adjusts the height of the adjustment rod by rotating the second screw rod, thereby adjusting the height of the chair body to meet the heights and needs of different users. This design increases the stability of the chair body during use and prevents the chair body from being offset or tilted due to external forces. The reinforcement rod significantly enhances the strength and stability of the entire support mechanism, ensuring that the chair can withstand a greater load and extend its service life; the C-shaped baffle setting can prevent more water from splashing under the bottom plate, keeping the use environment clean and dry; the multiple water outlet holes allow accumulated water to be discharged smoothly, avoiding damage to the chair caused by a humid environment due to accumulated water.

[0017] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 It is a three-dimensional stereogram of the first embodiment of the present invention.

[0020] Figure 2 It is a front view of the first embodiment of the present invention.

[0021] Figure 3 The present invention Figure 2 Section view along line AA.

[0022] Figure 4 The present invention Figure 2 Sectional view along line BB.

[0023] Figure 5 The present invention Figure 3 Sectional view along the CC line.

[0024] Figure 6 It is a schematic structural diagram of a driving gear, a driven gear and a half gear in the first embodiment of the present invention.

[0025] Figure 7 is a side view of a second embodiment of the present invention.

[0026] Figure 8 The present invention Figure 7 Sectional view along line DD.

[0027] Fig. 9 The present invention Figure 8 A partial enlarged view of point E in the middle.

[0028] Fig.10 The present invention Figure 7 A partial enlarged view of point F in the middle.

[0029] Fig.11 The present invention Figure 7 Sectional view along the GG line.

[0030] Fig.12 It is a front view of the third embodiment of the present invention.

[0031] Fig.13The present invention Fig.12 Sectional view along line HH.

[0032] Figure numerals: 1 is a slide plate, 2 is a chair body, 3 is a back-rubbing mechanism, 4 is a threaded sleeve, 5 is a backrest, 6 is a slide groove, 7 is an adjustment groove, 8 is a fixing block, 9 is a first screw rod, 10 is a driven gear, 11 is a protective box, 12 is a supporting mechanism, 13 is a rotating shaft, 14 is a half gear, 15 is a driving gear, 16 is a motor, 17 is a positioning groove, 18 is a supporting block, 19 is a positioning rod, 20 is a positioning block, 21 is a fastening plate, 22 is a back-rubbing board, 23 is a fastening 24 is a sleeve, 25 is a vertical groove, 26 is a fixing rod, 27 is a water retaining plate, 28 is a protective cover, 29 is a baffle, 30 is a first water retaining curtain, 31 is a second water retaining curtain, 32 is a guide block, 33 is a convex block, 34 is a convex groove, 35 is a top plate, 36 is a bottom plate, 37 is an adjusting rod, 38 is a threaded groove, 39 is a supporting tube, 40 is a second screw rod, 41 is a limiting rod, 42 is a limiting tube, 43 is a reinforcing rod, 44 is a C-shaped baffle, and 45 is a water outlet through hole. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with specific implementation methods. The accompanying drawings are only used for exemplary descriptions and are only schematic diagrams, not actual drawings, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0034] The first embodiment, as Figures 1 to 6As shown, a back-rubbing chair structure of the present invention comprises a slide plate 1 and a chair body 2, wherein the front end surface of the slide plate 1 is provided with a back-rubbing mechanism 3, the rear end surface of the slide plate 1 is provided with a threaded sleeve 4, a backrest 5 is provided on the chair body 2, the front end surface of the backrest 5 has a slide groove 6, the slide groove 6 has an adjustment groove 7, both ends of the adjustment groove 7 are provided with a fixing block 8, and a first screw rod 9 is provided between the two fixing blocks 8 through a bearing, one end of the first screw rod 9 is provided with a driven gear 10, and a backrest 5 is provided below the chair body 2. A protection box 11 and a support mechanism 12 are arranged, and the driven gear 10 extends into the protection box 11. Two rotating shafts 13 are rotatably arranged in the protection box 11. The rotating shafts 13 are provided with half gears 14 and driving gears 15. The two half gears 14 are respectively meshed with the driven gear 10 and are symmetrically arranged on both sides of the driven gear 10. The two driving gears 15 on the two rotating shafts 13 are meshed with each other, and one of the rotating shafts 13 is driven by a motor 16. The slide plate 1 slides with the backrest 5. The back rubbing board 22 is located at the front end surface of the backrest 5 body, the threaded sleeve 4 is threadedly connected to the first screw rod 9, and is located on the first screw rod 9, and also passes through the adjusting slot 7. The back rubbing mechanism 3 on the front end surface of the slide plate 1 provides a convenient back rubbing function for the user, and the back can be easily rubbed without bending or turning around. The combination of the slide plate 1 and the chair body 2 enables the user to enjoy the back rubbing service in a sitting position, which increases the comfort and convenience of bathing. The half gear 14 on the rotating shaft 13 is driven by the motor 16 to engage with the driven gear 10, thereby driving the first screw rod 9 to rotate. At the same time, under the structure of the two half gears 14, the two driving gears 15 are engaged with each other, thereby realizing the bidirectional rotation of the first screw rod 9, so that the threaded sleeve 4 reciprocates up and down in the adjusting slot 7, and then adjusts the position of the slide plate 1 and the back rubbing mechanism 3 relative to the backrest 5, thereby improving the user's back rubbing experience and effectively improving the safety during bathing.

[0035] The slide groove 6 also has two positioning grooves 17, and support blocks 18 are provided at both ends of the positioning groove 17, and a positioning rod 19 is provided between the two support blocks 18. The rear end face of the skateboard 1 is also provided with two positioning blocks 20, and the two positioning blocks 20 are respectively slidably connected with the corresponding positioning rods 19, and are sleeved on the positioning rods 19, and also pass through the corresponding positioning grooves 17. The arrangement of the positioning grooves 17 and the positioning blocks 20 enhances the stability of the skateboard 1 in the slide groove 6, and prevents shaking or deviation during use.

[0036] The volumes of the two half gears 14 are both larger than the volume of the driven gear 10, and any of the half gears 14 meshes with the driven gear 10 and rotates 180°, and the threaded block moves from one end of the adjusting groove 7 to the other end of the adjusting groove 7. The two half gears 14 are symmetrically arranged on both sides of the driven gear 10 and meshed with it, thereby realizing bidirectional rotation of the driven gear 10. The user can easily realize the rising or falling of the back-rubbing mechanism 3 by controlling the motor 16 to rotate in one direction. The operation is simple and efficient, and after the driven gear 10 meshes with any of the half gears 14 by 180°, the threaded sleeve can drive the back-rubbing mechanism 3 to move in one direction.

[0037] The working / implementation / use principle of the present invention is: by starting the motor 16, the motor 16 drives one of the rotating shafts 13 clockwise, which drives the corresponding driving gear 15 and the half gear 14 to rotate clockwise, and the half gear 14 meshes with the driven gear 10 clockwise, and the back-rubbing mechanism 3 moves downward under the action of the threaded sleeve 4 and the first screw 9, while the other driving gear 15 and the half gear 14 rotate counterclockwise. After the clockwise rotating half gear 14 meshes with the driven gear 10 and rotates 180°, it is the turn of the counterclockwise rotating half gear 14 and the driven gear 10 to rotate counterclockwise. The wheel 10 meshes and rotates 180°, and the back-scrubbing mechanism 3 moves upward under the action of the threaded sleeve 4 and the first screw 9, so that the back-scrubbing mechanism 3 can be reciprocated up and down in this cycle. Then the user can sit on the chair body 2 and put his back close to the back-scrubbing mechanism 3 to scrub the back. In this way, the problem of scrubbing the back with a back-scrubbing tool in bathing is solved. Common back-scrubbing tools include long-handled bath towels, bath brushes or special back-scrubbing tools. This back-scrubbing method is too time-consuming and labor-intensive. In addition, during the back-scrubbing process, both hands need to hold the back-scrubbing tool, which leads to the technical problem that both hands cannot react quickly when slipping.

[0038] The second embodiment, as Figures 7 to 11As shown, based on the first embodiment, a back-rubbing chair structure of the present invention, the back-rubbing mechanism 3 includes a fastening plate 21 and a back-rubbing board 22, a plurality of fastening sleeves 23 are arranged on the fastening plate 21, a plurality of collars 24 are arranged on the rear end surface of the back-rubbing board 22, a plurality of vertical grooves 25 are arranged on the front end surface of the slide plate 1, a fixing rod 26 is arranged in the vertical groove 25, the back-rubbing board 22 is mutually supported by the slide plate 1 through the plurality of collars 24, and is located on the front end surface of the slide plate 1, and the collars 24 are sleeved on the fixing rods 26. On the fixed rod 26, the fastening plate 21 is fixedly connected to the slide plate 1 by screws and is located above the slide plate 1, and the plurality of fastening sleeves 23 are also respectively held against the corresponding sleeve rings 24. The fastening plate 21 is fixedly connected to the slide plate 1 by screws, thereby ensuring the stability of the back scrubbing board 22. The back scrubbing board 22 is held against the slide plate 1 by the sleeve ring 24 and is sleeved on the fixed rod 26. This design not only ensures the stability of the back scrubbing board 22, but also facilitates disassembly and cleaning.

[0039] The back-scrubbing mechanism 3 also includes a water baffle 27, which is arranged above the fastening plate 21 through Velcro and also covers the top of the screw. The water baffle 27 is arranged above the fastening plate 21 using Velcro and covers the top of the screw, which effectively prevents bath water from splashing into the gap between the screw and the fastening plate 21, thereby extending the service life of the back-scrubbing mechanism 3.

[0040] The back-scrubbing chair structure also includes a protective cover 28 and a barrier 29. The protective cover 28 is fixedly connected to the backrest 5 and covers the rear end surface of the backrest 5, and the support block 18 and the fixed block 8 are both located in the protective cover 28. The barrier 29 is fixedly connected to the chair body 2 and is arranged in a C shape on the outside of the chair body 2. The protective cover 28 covers the rear end surface of the backrest 5 to protect the internal mechanical structure and prevent the user from accidentally touching it during bathing. The barrier 29 is arranged in a C shape on the outside of the chair body 2, which not only prevents bath water from splashing in, but also increases the sense of security during bathing.

[0041] The back-scrubbing chair structure also includes a first water-blocking curtain 30, a second water-blocking curtain 31 and a guide block 32. One end of the first water-blocking curtain 30 and the second water-blocking curtain 31 are both provided with a convex block 33. The upper and lower ends of the back-scrubbing board 22 both have convex grooves 34. The first water-blocking curtain 30 is fixedly connected to the protective cover 28 and is located on the protective cover 28. The first water-blocking curtain 30 is also slidably connected to the back-scrubbing board 22 through the convex block 33 and is located above the back-scrubbing board 22, and the convex block 33 is located in the corresponding convex groove 34. The second water-blocking curtain 31 is fixedly connected to the chair body 2 and is located above the chair body 2. The second water-blocking curtain 31 is also slidably connected to the back-scrubbing board 22 through the convex block 33. The convex block 33 is located in the corresponding convex groove 34, and the first water retaining curtain 30 and the second water retaining curtain both cover the front end surface of the backrest 5. The guide block 32 is fixedly connected to the chair body 2 and is located above the chair body 2, and is also located on one side of the second water retaining curtain 31. The first water retaining curtain 30 and the second water retaining curtain 31 are slidably connected to the rubbing board 22 using the convex block 33, covering the front end surface of the backrest 5, effectively preventing bath water from splashing into the positioning groove 17 and the adjusting groove 7. The guide block 32 is located on one side of the second water retaining curtain 31, which not only plays a role in guiding the bath water flow, but also increases the overall aesthetics of the back-scrubbing chair structure.

[0042] The working / implementation / use principle of the present invention is as follows: the water baffle 27 is separated from the fastening plate 21. This step is to expose the screws for easy subsequent disassembly. The screws are rotated counterclockwise with a screwdriver to remove the screws. The fastening plate 21 is then removed from the slide plate 1. The backwashing plate 22 is then pulled upward to disengage it from the fixing rod 26 and the vertical groove 25. At the same time, the collar 24 also slides out of the fixing rod 26. The front end of the new backwashing plate 22 is then aligned with the vertical groove 25 of the slide plate 1. Slot 25, and put the ring 24 on the fixing rod 26, and finally put the fastening plate 21 back on the top of the skateboard 1, ensuring that the fastening sleeve 23 corresponds to the ring 24 and slightly abuts against it, and at the same time use a screwdriver to rotate the screw clockwise to firmly fix the fastening plate 21 on the skateboard 1, and use Velcro to re-stick the water baffle 27 on the top of the fastening plate 21, and then clean and disinfect the replaced back scrubbing board 22, and the specific disinfection method can be alcohol disinfection or high-temperature disinfection.

[0043] The third embodiment, as Figure 12 to Figure 13As shown, based on the second embodiment, a back-scrubbing chair structure of the present invention, the support mechanism 12 includes a top plate 35 and a bottom plate 36, an adjusting rod 37 is arranged below the top plate 35, a threaded groove 38 is provided in the adjusting rod 37, a support tube 39 is arranged above the bottom plate 36, a second screw 40 is arranged on the bottom plate 36 through a bearing, and the second screw 40 is located in the support tube 39, the top plate 35 is fixedly connected to the chair body 2 and is located below the chair body 2, the adjusting rod 37 is slidably connected to the support tube 39 and is located in the support tube 39, and the second screw 40 is threadedly connected to the adjusting rod 37 and is located in the threaded groove 38, the height of the adjusting rod 37 is adjusted by rotating the second screw 40, thereby adjusting the height of the chair body 2 to meet the height and needs of different users.

[0044] The support mechanism 12 also includes a plurality of limiting members, which include a limiting rod 41 and a limiting cylinder 42. The limiting rod 41 is fixedly connected to the chair body 2 and is located below the chair body 2. The limiting rod 41 is also slidably connected to the limiting cylinder 42 and is located inside the limiting cylinder 42. The limiting cylinder 42 is fixedly connected to the base plate 36 and is located above the base plate 36, and is also located on the outside of the support cylinder 39. This design increases the stability of the chair body 2 during use and prevents the chair body 2 from being offset or tilted due to external force.

[0045] A plurality of reinforcing rods 43 are arranged between the top plate 35 and the adjusting rod 37, and the plurality of reinforcing rods 43 are arranged in a cross-symmetrical manner. A C-shaped baffle 44 is arranged below the bottom plate 36, and a plurality of water outlet holes 45 are provided below the C-shaped baffle 44. The strength and stability of the entire supporting mechanism 12 are significantly enhanced by the reinforcing rods 43, ensuring that the chair can withstand a greater load and extend its service life. The C-shaped baffle 44 can prevent more water from splashing under the bottom plate 36, thereby keeping the use environment clean and dry. The plurality of water outlet holes 45 allow accumulated water to be discharged smoothly, thereby avoiding damage to the chair caused by accumulated water in a humid environment.

[0046] The working / implementation / use principle of the present invention is: by rotating the second screw 40 to adjust the height of the adjustment rod 37, the height of the chair body 2 is adjusted to meet the height and needs of different users. This design increases the stability of the chair body 2 during use and prevents the chair body 2 from being offset or tilted due to external force. The reinforcement rod 43 significantly enhances the strength and stability of the entire support mechanism 12, ensuring that the chair can withstand a larger load and extend its service life; the C-shaped baffle 44 is set to prevent more water from splashing under the base plate 36, keeping the use environment clean and dry; the multiple water outlet holes 45 allow accumulated water to be discharged smoothly, avoiding damage to the chair caused by a humid environment due to accumulated water. It should be noted that the first screw 9, the second screw 40, the driving gear 15, the driven gear 10, the half gear 14 and the motor 16 of the present design are all coated with a waterproof layer, thereby achieving a waterproof effect, thereby increasing the service life of each component.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A back-rubbing chair structure, characterized in that: The invention comprises a slide plate and a chair body, wherein a back-rubbing mechanism is arranged on the front end surface of the slide plate, a threaded sleeve is arranged on the rear end surface of the slide plate, a backrest is arranged on the chair body, a slide groove is arranged on the front end surface of the backrest, an adjustment groove is arranged in the slide groove, fixing blocks are arranged at both ends of the adjustment groove, and a first screw rod is arranged between the two fixing blocks through a bearing, a driven gear is arranged at one end of the first screw rod, a protection box and a supporting mechanism are arranged below the chair body, and the driven gear extends into the protection box, two rotating shafts are rotatably arranged in the protection box, a half gear and a driving gear are arranged on the rotating shaft, and the two half gears are respectively meshed with the driven gear and symmetrically arranged on both sides of the driven gear, the two driving gears on the two rotating shafts are meshed with each other, and one of the rotating shafts is driven by a motor, the slide plate is slidably connected with the backrest and is located in the slide groove, and the back-rubbing board is located at the front end surface of the backrest body, the threaded sleeve is threadedly connected with the first screw rod, is located and sleeved on the first screw rod, and also passes through the adjustment groove.

2. The back scrubbing chair structure according to claim 1, characterized in that: There are also two positioning grooves in the slide groove, support blocks are provided at both ends of the positioning groove, and a positioning rod is provided between the two support blocks. Two positioning blocks are also provided on the rear end surface of the slide plate, and the two positioning blocks are respectively slidably connected to the corresponding positioning rods, and are sleeved on the positioning rods, and also pass through the corresponding positioning grooves.

3. The back scrubbing chair structure according to claim 2, characterized in that: The volumes of the two half gears are both larger than the volume of the driven gear, and when any of the half gears meshes with the driven gear and rotates 180°, the threaded block moves from one end of the adjusting groove to the other end of the adjusting groove.

4. The back scrubbing chair structure according to claim 3, characterized in that: The back-rubbing mechanism includes a fastening plate and a back-rubbing board, the fastening plate is provided with a plurality of fastening sleeves, the rear end surface of the back-rubbing board is provided with a plurality of rings, the front end surface of the slide plate has a plurality of vertical grooves, a fixing rod is provided in the vertical groove, the back-rubbing board is supported against the slide plate through a plurality of the rings, and is located on the front end surface of the slide plate, and the ring is sleeved on the fixing rod, the fastening plate is fixedly connected to the slide plate by screws, and is located above the slide plate, and a plurality of the fastening sleeves are also respectively supported above the corresponding rings.

5. The back scrubbing chair structure according to claim 4, characterized in that: The back-rubbing mechanism also includes a water baffle, which is arranged above the fastening plate through Velcro and also covers the top of the screw.

6. The back scrubbing chair structure according to claim 5, characterized in that: The back-scrubbing chair structure also includes a protective cover and a enclosure, wherein the protective cover is fixedly connected to the backrest and covers the rear end surface of the backrest, and the support block and the fixed block are both located inside the protective cover, and the enclosure is fixedly connected to the chair body and is arranged in a C shape on the outside of the chair body.

7. The back-scrubbing chair structure according to claim 6, characterized in that: The back-scrubbing chair structure also includes a first water-blocking curtain, a second water-blocking curtain and a guide block, one end of the first water-blocking curtain and the second water-blocking curtain are both provided with a convex block, and the upper and lower ends of the back-scrubbing board are both provided with convex grooves, the first water-blocking curtain is fixedly connected to the protective cover and is located on the protective cover, the first water-blocking curtain is also slidably connected to the back-scrubbing board through the convex block, and is located above the back-scrubbing board, and the convex block is located in the corresponding convex groove, the second water-blocking curtain is fixedly connected to the chair body and is located above the chair body, the second water-blocking curtain is also slidably connected to the back-scrubbing board through the convex block, and is located below the back-scrubbing board, and the convex block is located in the corresponding convex groove, the first water-blocking curtain and the second water-blocking curtain both cover the front end surface of the backrest, the guide block is fixedly connected to the chair body, and is located above the chair body, and is also located on one side of the second water-blocking curtain.

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