Human body supporting device for bathing

Abstract

The utility model discloses a human body supporting device for bathing, which belongs to the technical field of bathing safety and comprises a base, a connecting rod component, a main backrest and an auxiliary backrest, one end of the connecting rod component is rotatably connected onto the base, the main backrest is rotatably connected with the other end of the connecting rod component, and the auxiliary backrest is connected onto the main backrest in a lifting manner. The auxiliary backrest can move up and down along one end face of the main backrest and can be folded and contracted, the height of the main backrest can be adjusted, and the supporting range of the anti-falling device can be expanded by adjusting the auxiliary backrest in a lifting mode.

Description

Technical Field

[0001] The utility model relates to the technical field of bathing safety, in particular to a human body supporting device for bathing. Background Art

[0002] When a person puts on pants without support, he or she first lifts one foot to put on one side, then switches to the other foot and lifts it, and then puts on the pants on the other side; at this time, the person is standing on one foot, and the human body is often prone to lose balance and fall, especially for the elderly; in special circumstances, such as just after taking a shower in the bathroom, the floor becomes slippery with water, and it is very easy to lose balance when lifting the feet to rub them when washing feet in the shower, especially for the elderly or people with poor balance, who often fall and suffer physical injuries. The existing bracket for bathing support is large in size and small in support area, and often requires assistance from people. Now, a device that is simple to use and has a large support area is needed to meet the demand for preventing falls after standing on one foot.

[0003] The existing patent application with publication number CN108634832A discloses a fall-proof healthy elderly care bathing enclosure frame, including a bathing maintenance frame body, the surface of the bathing maintenance frame body is integrally formed with an installation fixing plate, and the side plate of the bathing maintenance frame body is provided with a lifting groove, the internal sliding connection of the lifting groove is provided with a connecting slide plate, the surface of the connecting slide plate is welded with an adjustment frame, the internal sliding connection of the adjusting frame is provided with an enclosure rod, the surface of the connecting slide plate is rotatably connected with an adjusting screw, the adjusting screw simultaneously penetrates the outer wall of the adjusting frame and the enclosure rod, the surface of the enclosure rod is provided with an overlapping groove, the internal overlapping groove is provided with a telescopic cross bar, and the surface of the bathing maintenance frame body is provided with a backrest groove; two enclosure rods are provided on the bathing maintenance frame body, the two enclosure rods are adjusted in distance by an adjusting screw, and together with the telescopic cross bar, form an enclosure structure, the enclosure frame occupies a large area and has a small adjustable range, is complicated to operate, and is not convenient for use by elderly people. Utility Model Content

[0004] The utility model aims to provide a human body supporting device for bathing, which solves the problems that the existing anti-falling devices for bathing have a small adjustable range and are complicated to operate.

[0005] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] A human body support device for bathing comprises a base, a connecting rod assembly and a main backrest, wherein one end of the connecting rod assembly is rotatably connected to the base, and the main backrest is rotatably connected to the other end of the connecting rod assembly. The main backrest can be rotated clockwise or counterclockwise around the other end of the connecting rod assembly toward the base at a certain angle, occupies little space and is easy to operate.

[0007] Further, it further includes a secondary backrest, which is vertically connected to the main backrest. The secondary backrest can move along one end face of the main backrest. The secondary backrest includes a main beam, a bracket, a telescopic shaft, a fourth spring, a wedge-shaped member, and a convex key. The bracket is connected to the main beam, and the bracket is telescopically connected to the main backrest. The telescopic shaft is arranged inside the bracket. The wedge-shaped member is arranged at one end of the telescopic shaft. The fourth spring is sleeved on the telescopic shaft. The convex key is telescopically connected to the side wall of the bracket, and the inner end of the convex key can be engaged with the wedge-shaped member to adjust the telescopic height of the secondary backrest, meet the support use of different people, can be folded and retracted, and adjust the height of the main backrest. Lifting and adjusting the secondary backrest can also expand the support range of the anti-fall device.

[0008] Further, the link assembly includes a positioning mechanism and a first pivot shaft. The positioning mechanism is arranged inside the link assembly. The first pivot shaft is arranged at the rotation center of the link assembly and the base. The first pivot shaft is provided with a rotating surface and a limiting surface. The positioning mechanism includes a rod arm, a first shaft sleeve, a positioning pin, and a first elastic element. The first shaft sleeve is sleeved on the first pivot shaft. One end of the positioning pin is fixed to the first shaft sleeve, and the other end of the positioning pin is inserted into the tail end of the rod arm. The positioning pin can move along the length direction of the rod arm. The first elastic element applies pressure to the positioning pin. There is a limiting groove on the side wall of the rod arm. The limiting groove includes a rotating part and a limiting part. The rotating part is in rotational cooperation with the rotating surface, and the limiting part can be engaged with the limiting surface. Rotate the link assembly, the rod arm moves under the pressure of the first elastic element, and the first pivot shaft moves along the limiting groove to change the locking state, which is used to switch the locking state of the rod arm during the rotation of the link assembly, and realize the support limit and rotation contraction functions of the anti-fall device.

[0009] Furthermore, the base includes a limiting pin, which is arranged on the base and within the rotation range of the link assembly, used to prevent the link assembly from losing its limit function and improve the safety of use.

[0010] Furthermore, the link assembly further includes a second shaft sleeve and a second pivot shaft. The second pivot shaft is arranged at the other end of the link assembly. The second shaft sleeve is sleeved on the second pivot shaft. The main backrest includes a backboard, a clutch structure, a locking structure, and a hook structure. The clutch structure is arranged inside the backboard and is sleeved on the second shaft sleeve. The locking structure is arranged on one side of the clutch structure. The hook structure is arranged on the link assembly. The hook structure, the clutch structure, and the locking structure form a restriction on the relative rotation between the link assembly and the main backrest, which is used for locking and opening the main backrest.

[0011] Preferably, the clutch structure includes a first limiting member, a second limiting member and a second elastic element. The first limiting member is sleeved on the second sleeve, the second limiting member is coaxially fixed on the second pivot shaft, one end of the second elastic element abuts against the first limiting member, and the other end abuts against the second sleeve. The first limiting member can slide axially along the axis of the second sleeve. The clutch structure, the locking structure and the hook structure cooperate to complete the engagement and disengagement between the second sleeve and the link assembly, and are used to lock different support states of the main backrest respectively.

[0012] Preferably, the locking structure includes a push plate, a clamping member, a first spring and a fixing member. The fixing member is arranged inside the backrest plate. The push plate is connected to the clamping member and is slidably connected to the fixing member. The first spring is arranged between the fixing member and the clamping member. The clamping member is clamped with the first limiting member. The hook structure includes a fixing plate, a hook claw and a second spring. The fixing plate is arranged on the link assembly. The hook claw is slidably connected to the fixing plate, and a part of the hook claw penetrates through the side wall of the rod arm and abuts against the hook structure. The second spring is arranged between the fixing plate and the hook claw. The second spring pushes the hook claw to abut against the first limiting member, and the hook claw can be clamped with the first limiting member to lock the retracted state of the main backrest.

[0013] Preferably, the first limiting member is provided with a hook groove, an axial pushing portion and a clamping groove. The hook groove is arranged on the first limiting member. The axial pushing portion protrudes from the end face of the first limiting member. The clamping groove is arranged on the first limiting member away from the hook groove for locking and unlocking.

[0014] Preferably, the main backrest further includes a limiting member and a third spring. The limiting member is arranged on the second pivot shaft. One end of the third spring is connected to the limiting member, and the other end is connected to the backrest plate for the main backrest to automatically reset after flipping.

[0015] More preferably, an elastic clip is further included. The elastic clip is fixed on the wall surface, and the link assembly can be clamped with the elastic clip to fix the link assembly in the folded state.

[0016] The beneficial effects of the present utility model are as follows:

[0017] (1) The human body support device for bathing is connected with the main backrest by a rotatable link assembly, so that the overall occupied area of the anti-fall device is small and the installation is convenient. The link assembly realizes the adjustment and fixation of the up and down positions, and is convenient to use.

[0018] (2) The human body support device for bathing installs a secondary backrest on the main backrest that can move up and down along the end face of the main backrest, expanding the support area of the anti-fall device. At the same time, it can also adjust the position of the support surface according to the height of the user, making it flexible and convenient to use. The connecting rod assembly is provided with a positioning mechanism. The positioning mechanism can cooperate with the first pivot at the rotation point of the connecting rod assembly. By cooperating with the sliding surface and the limiting surface on the first pivot, it can be positioned in the open state and the contracted state of the main backrest, ensuring the accuracy of the open position. In addition, when the main backrest is in the open or contracted state, a limiting pin is also provided, improving the load-bearing capacity of the main backrest and eliminating the risk of the limiting mechanism failing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Isometric view of the human body support device for bathing provided by the present utility model;

[0020] Figure 2 State diagram of the human body support device for bathing provided by the present utility model after contraction;

[0021] Figure 3 Cross-section of the positioning mechanism of the human body support device for bathing provided by the present utility model Figure 1 ;

[0022] Figure 4 Cross-section of the positioning mechanism of the human body support device for bathing provided by the present utility model Figure 2 ;

[0023] Figure 5 Exploded view of the human body support device for bathing provided by the present utility model;

[0024] Figure 6 Main backrest clutch structure of the human body support device for bathing provided by the present utility model Figure 1 ;

[0025] Figure 7 Main backrest clutch structure of the human body support device for bathing provided by the present utility model Figure 2 ;

[0026] Figure 8 Main backrest clutch structure of the human body support device for bathing provided by the present utility model Figure 3 ;

[0027] Figure 9 Main backrest clutch structure of the human body support device for bathing provided by the present utility model Figure 4 ;

[0028] Figure 10 Main backrest clutch structure of the human body support device for bathing provided by the present utility model Figure 5 ;

[0029] Figure 11 The main backrest sectional view of the human body support device for bathing provided by the present utility model;

[0030] Figure 12 The main backrest flipping structure diagram of the human body support device for bathing provided by the present utility model;

[0031] Figure 13 The internal structure diagram of the secondary backrest of the human body support device for bathing provided by the present utility model;

[0032] Figure 14 The exploded view of the secondary backrest of the human body support device for bathing provided by the present utility model;

[0033] Figure 15 The sectional view of the lifting structure of the secondary backrest of the human body support device for bathing provided by the present utility model;

[0034] Figure 16 The axonometric view of the first limiting member of the human body support device for bathing provided by the present utility model;

[0035] Figure 17 The front view of the first limiting member of the human body support device for bathing provided by the present utility model;

[0036] Figure 18 The state conversion diagram of the human body support device for bathing provided by the present utility model;

[0037] Figure 19 The usage state diagram of the human body support device for bathing provided by the present utility model.

[0038] Reference numerals:

[0039] 1. Base; 101. First pivot; 102. Limit pin; 2. Link assembly; 21. Positioning mechanism; 201. Rod arm; 2011. Limit groove; 202. First bushing; 203. Positioning pin; 204. First elastic element; 205. Collar; 206. Hook structure; 207. First limiting member; 2071. Hook groove; 2072. Axial pushing portion; 2073. Card slot; 208. Second limiting member; 209. Second elastic element; 210. Second pivot; 211. Connecting member; 212. Second bushing; 213. Hook claw; 214. Second spring; 215. Fixed plate; 216. Limit post; 217. Third spring; 3. Main backrest; 301. Back plate; 302. Sub-beam; 303. Engaging member; 304. Pushing plate; 305. First spring; 306. Fixed member; 307. Wing plate; 4. Sub-backrest; 401. Main beam; 402. Bracket; 403. Bottom plate; 404. Fifth spring; 405. Convex key; 406. Telescopic shaft; 407. First snap ring; 408. Fourth spring; 409. Fixed block; 410. Wedge member; 411. Second snap ring; 20. Clutch structure; 30. Locking structure; 5. Elastic clip. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] As Figures 1 - 19 shown, this embodiment discloses a human body support device for bathing, including a base 1, a link assembly 2, a main backrest 3 and a sub-backrest 4. One end of the link assembly 2 is rotatably connected to the base 1, and the main backrest 3 is rotatably connected to the other end of the link assembly 2. The main backrest 3 can rotate clockwise or counterclockwise around the other end of the link assembly 2 towards the base 1 by a certain angle, which is convenient for opening and folding. The sub-backrest 4 is connected to the main backrest 3 in a lifting manner, and the sub-backrest 4 can move up and down along one end face of the main backrest 3 to expand the area for supporting the human body. The main backrest 3 rotates around the base 1 under the support of the link assembly 2. When the link assembly 2 rotates to the horizontal state, the main backrest 3 supports forward. When the link assembly 2 rotates to the vertical state, the height of the main backrest 3 can be adjusted. The main backrest 3 can rotate around the end of the link assembly 2 to ensure that the support direction always faces the user. The sub-backrest 4 can be separated from the main backrest 3 to expand the support range.

[0042] Further, the link assembly 2 includes a positioning mechanism 21 and a first pivot 101. The positioning mechanism 21 is disposed within the link assembly 2. The first pivot 101 is disposed at the rotation center of the link assembly 2 and the base 1. The first pivot 101 is provided with a rotating surface and a limiting surface. The rotating surface and the limiting surface are connected end to end and disposed on the outer wall of the first pivot 101. The positioning mechanism 21 includes a lever arm 201, a first bushing 202, a positioning pin 203, and a first elastic element 204. The first bushing 202 is disposed within the lever arm 201 and sleeved on the first pivot 101. The positioning pin 203 slides along the length direction of the lever arm 201. The first elastic element 204 applies pressure to the positioning pin 203, causing the positioning pin 203 to tend to move towards the first pivot 101. A limiting groove 2011 is provided on the side wall of the lever arm 201. The limiting groove 2011 includes a rotating portion and a limiting portion. The rotating portion is in rotational cooperation with the rotating surface, and the limiting portion can be engaged with the limiting surface. When the link assembly 2 is rotated, the lever arm 201 moves under the pressure of the first elastic element 204, and the first pivot 101 moves along the limiting groove 2011 to change the locking state. Specifically, the rotating portion is a circular groove, and the limiting portion is in a shape of a runway. When the link assembly 2 is in a horizontal state, the limiting portion cooperates with the limiting surface to lock the link assembly 2, and the main backrest 3 can support the user. When the lever arm 201 needs to be rotated to a vertical state, the limiting portion is disengaged from the limiting surface, and the rotating surfaces come into contact, so that the link assembly 2 can rotate around the base 1, facilitating the folding or adjustment of the main backrest 3.

[0043] Furthermore, the base 1 includes a limiting pin 102. The limiting pin 102 is disposed on the base 1 and within the rotation range of the link assembly 2. When the limiting pin 102 is disposed above the link assembly 2, it can block the downward rotation of the link assembly 2, prevent the main backrest 3 from rotating downward, and play a role in downward limiting to prevent the main backrest 3 from falling. When the link assembly 2 rotates upward to be perpendicular to the ground, the limiting pin 102 blocks the continuous rotation of the link assembly 2 and plays a role in upward limiting.

[0044] Further, the link assembly 2 further includes a second bushing 212 and a second pivot 210. The second pivot 210 is disposed at the other end of the link assembly 2, and the second bushing 212 is sleeved on the second pivot 210. The main backrest 3 includes a backrest plate 301, a clutch structure 20, a locking structure 30, and a hook structure 206. The clutch structure 20 is disposed within the backrest plate 301, sleeved on the second bushing 212, and fixed to the second bushing 212. The locking structure 30 is disposed on one side of the clutch structure 20 for restricting the relative rotation of the main backrest 3 with respect to the link assembly 2. The hook structure 206 is disposed on the link assembly 2. The hook structure 206, the clutch structure 20, and the locking structure 30 cooperate to restrict the relative rotation between the link assembly 2 and the main backrest 3. The three work together to respectively restrict the rotation of the main backrest 3 in two directions and the unlocking of the main backrest 3, enabling the main backrest 3 to support forward in the horizontal state and freely rotate to adjust the position in the vertical state.

[0045] Specifically, a collar 205 is provided at the end of the second pivot 210 for fixing the second pivot 210 to the rod arm 201.

[0046] Preferably, the clutch structure 20 includes a first limiting member 207, a second limiting member 208, and a second elastic element 209. The first limiting member 207 is sleeved on the second bushing 212. The second limiting member 208 is coaxially fixed to the second pivot 210. One end of the second elastic element 209 abuts against the first limiting member 207, and the other end abuts against the second bushing 212. The first limiting member 207 can slide axially along the axis of the second bushing 212 to complete the unlocking of the clutch structure 20 and the hook structure 206. The clutch structure 20, the locking structure 30, and the hook structure 206 cooperate to complete the engagement and disengagement between the second bushing 212 and the link assembly 2. A protrusion is provided on the outer wall of the first limiting member 207, which engages with the hook structure 206 during the rotation of the main backrest 3 to restrict the swing of the main backrest 3. A protrusion is provided on the second limiting member 208, which engages with the locking structure 30 for the separation and combination of the first limiting member 207 and the second bushing 212. The combination of the two limiting members completes the engagement and disengagement action between the main backrest 3 and the link assembly 2. After locking, the main backrest 3 can be unlocked by external pushing.

[0047] Among them, the first limiting member 207 is provided with a hook groove 2071, an axial pushing portion 2072 and a clamping groove 2073. The hook groove 2071 is arranged on the first limiting member 207. The axial pushing portion 2072 protrudes from the end face of the first limiting member 207. The clamping groove 2073 is arranged on the first limiting member 207 away from the hook groove 2071. When it is necessary to lock the main backrest 3 and the link assembly 2, the fixed hook groove 2071 is combined with the hook structure 206 when the second bushing 212 rotates in place. At this time, the push plate 304 is separated from the second limiting member 208. Under the action of the first spring 305, the engaging member 303 and the clamping groove 2073 on the first limiting member 207 lock the first limiting member 207 and the second bushing 212. When the main backrest 3 needs to be rotated back to the original position after use, the main backrest 3 is pushed to continue rotating around the second pivot 210. The axial pushing portion 2072 is squeezed by the second limiting member 208, driving the first limiting member 207 to move axially along the second bushing 212. The hook groove 2071 is disengaged from the hook structure 206, and the main backrest 3 and the link assembly 2 are unlocked. The main backrest 3 rotates back to the original position in the reverse direction driven by the third spring 217. The engaging member 303 is squeezed by the second limiting member 208 and disengaged from the first limiting member 207. The main backrest 3 can rotate freely around the axis.

[0048] Preferably, the locking structure 30 includes a push plate 304, an engaging member 303, a first spring 305 and a fixing member 306. The fixing member 306 is arranged in the backrest plate 301. The push plate 304 is connected to the engaging member 303, and the push plate 304 is slidably connected to the fixing member 306. The first spring 305 is arranged between the fixing member 306 and the engaging member 303 for the reset of the engaging member 303. The engaging member 303 is clamped with the first limiting member 207 to lock the main backrest 3. Pushing the push plate 304 unlocks the engaging member 303 and the main backrest 3. The hook structure 206 includes a fixing plate 215, a hook claw 213 and a second spring 214. The fixing plate 215 is arranged on the link assembly 2. The hook claw 213 is slidably connected to the fixing plate 215. The second spring 214 is arranged between the fixing plate 215 and the hook claw 213 for the reset of the hook claw 213. The hook claw 213 can be clamped with the first limiting member 207. The hook claw 213 is L-shaped. The vertical part of the hook claw 213 is clamped with the hook groove 2071 on the first limiting member 207 to relatively lock the main backrest 3 and the link assembly 2. When the main backrest 3 continues to rotate, the second limiting member 208 pushes the first limiting member 207 to move axially, and the hook claw 213 can be disengaged from the hook groove 2071, unlocking the main backrest 3 and the link assembly 2.

[0049] Such as Figure 8As shown, when the main backrest 3 is in the retracted state (the main backrest 3 faces the wall or the fixed surface), the first spring 305 is in the reset state. At this time, the push plate 304 contacts the second limiting member 208, the engaging member 303 is stuck in the fixed hook groove 2071 of the first limiting member 207, there is a certain distance between the second limiting member 208 and the first limiting member 207. At this time, the first limiting member 207 also squeezes the second elastic element 209, and the engaging member 303 contacts the second limiting member 208, thereby restricting the rotation of the first limiting member 207 and the locking structure 30. Since the card slot 2073 on the first limiting member 207 is clamped with one end of the fixing member 306, the first limiting member 207 and the locking structure 30 rotate synchronously; when the main backrest 3 needs to be used, by rotating the main backrest 3, at this time the second limiting member 208 squeezes the push plate 304, pushing the engaging member 303 to disengage the engaging member 303 from the fixed hook groove 2071, and the engaging member 303 is disengaged from the second limiting member 208. Furthermore, the first limiting member 207 is released from the restriction of the second limiting member 208 and can rotate. At this time, the main backrest 3 is not restricted and can rotate relative to the second pivot 210. At this time, the first limiting member 207 is axially reset. At this time, the two opposite side surfaces of the first limiting member 207 and the second limiting member 208 are in contact. The reset of the first limiting member 207 is convenient for the hook groove 2071 and the hook claw 213 to engage when the main backrest 3 rotates to a certain angle later, so as to lock the main backrest 3 and the link assembly 2;

[0050] As Figure 9 shown, when the main backrest 3 needs to support the human body for use, the second limiting member 208 is completely separated from the push plate 304, and the main backrest 3 needs to be locked with the link assembly 2. At this time, the fixed hook groove 2071 of the first limiting member 207 rotates to the position of the hook claw 213 of the hook structure 206 driven by the second bushing 212, and the fixed hook groove 2071 engages with the hook claw 213, restricting the main backrest 3 from rotating back. The card slot 2073 on the first limiting member 207 locks the first limiting member 207 and the fixing member 306 in the circumferential direction, so that the two rotate synchronously. At this time, the two opposite side surfaces of the first limiting member 207 and the second limiting member 208 are in contact;

[0051] As Figure 10As shown, when the main backrest 3 needs to be rotated back to its original position after use (the limit of the main backrest 3 is released), the main backrest 3 is pushed to continue rotating a certain angle around the second pivot 210 in the direction opposite to the reset direction (continue to rotate the main backrest downward slightly), so that the axially pushing portion 2072 protruding from the first limiting member 207 is squeezed by the second limiting member 208, thereby driving the first limiting member 207 to move axially inward along the second bushing 212. At this time, the engaging member 303 latches the first limiting member 207 to prevent it from moving axially outward, so that the fixing hook groove 2071 is completely disengaged from the hook claw 213 of the hook structure 206, the main backrest 3 is unlocked from the link assembly 2, and the main backrest 3 rotates back to its original position under the drive of the third spring 217. The engaging member 303 is disengaged from the first limiting member 207 under the extrusion of the second limiting member 208, and the main backrest 3 can freely rotate around the axis.

[0052] More preferably, the main backrest 3 further includes wing plates 307. The wing plates 307 are arranged on both sides of the main backrest 3 and extend in an arc form in the direction away from the link assembly 2. The wing plates 307 are attached to the human back, applying pressure from both sides, expanding the contact area with the back and preventing the human body from slipping to both sides, thereby improving the safety of use.

[0053] See Figures 9 - 11 Furthermore, the main backrest 3 further includes a limiting post 216 and a third spring 217. The limiting post 216 is arranged on the second pivot 210. One end of the third spring 217 is connected to the limiting post 216, and the other end is connected to the backrest plate 301. The third spring 217 provides the reset force for the main backrest 3 after flipping. The limiting post 216 penetrates through the second bushing 212 to form a through groove on its side wall. After the part of the limiting post 216 protruding from the second bushing 212 contacts the backrest plate 301, the main backrest 3 stops rotating.

[0054] Preferably, it further includes an elastic clip 5. The elastic clip 5 is fixed on the wall or other fixed objects. The link assembly 2 can be clamped with the elastic clip 5. The elastic clip 5 clamps the link assembly 2 after the link assembly 2 is retracted and folded against the wall, preventing the anti-fall device from accidentally falling off.

[0055] See Figures 13 - 15, Further, the secondary backrest 4 includes a main beam 401, a bracket 402, a telescopic shaft 406, a fourth spring 408, a wedge 410, and a convex key 405. The bracket 402 is connected to the main beam 401. The bracket 402 is telescopically connected to the main backrest 3. The telescopic shaft 406 is disposed within the bracket 402. The wedge 410 is disposed at one end of the telescopic shaft 406. The fourth spring 408 is sleeved on the telescopic shaft 406. The convex key 405 is telescopically connected to the side wall of the bracket 402, and the inner end of the convex key 405 facing inward can be engaged with the wedge 410. A secondary beam 302 is provided on the backrest plate 301. The second bushing 212 is connected to the backrest plate 301 by a connecting member 211. The bracket 402 is telescopically connected within the secondary beam 302. Pressing down the telescopic shaft 406 causes the wedge 410 to push the convex key 405 to retract inward, and the secondary backrest 4 can move relative to the main backrest 3.

[0056] Preferably, the inner end of the convex key 405 facing inward is an inclined surface. After the wedge 410 descends to the bottom of the bracket 402, the inclined surface and the wedge 410 form a wedge pushing structure. The outer end of the convex key 405 abuts against the secondary beam 302 to lock the secondary beam 302 and the bracket 402. A first snap spring 407 and a second snap spring 411 are provided on the telescopic shaft 406. The fourth spring 408 is disposed between the first snap spring 407 and the second snap spring 411, and is used to push the telescopic shaft 406 to bounce back and lock the secondary backrest 4, as well as serve as the upper and lower limits for the movement of the telescopic shaft 406. The secondary backrest 4 is locked and opened by pushing the telescopic shaft 406 on the secondary backrest 4.

[0057] Specifically, two convex keys 405 arranged oppositely are provided within the bracket 402. A fifth spring 404 is provided between the two convex keys 405, and the fifth spring 404 is used to push the two convex keys 405 outward to abut against the secondary beam 302 to play a locking role. A bottom plate 403 is provided below the two convex keys 405 for guiding the sliding of the convex keys 405. A fixing block 409 is provided within the bracket 402, and the telescopic shaft 406 penetrates through the fixing block 409. The fixing block 409 is used for guiding the telescopic shaft 406.

[0058] Specifically refer to Figure 18 and Figure 19 , The usage process of the human body support device for bathing is as follows:

[0059] When not in use, the anti-fall device is in a folded and retracted state. At this time, the connecting rod assembly 2 is in a vertical state parallel to the wall surface, the main backrest 3 is folded, and the backrest plate 301 on the main backrest 3 faces the wall surface, occupying a small space. When in use, the hook structure 206 and the locking structure 30 are opened respectively. The connecting rod assembly 2 and the main backrest 3 can rotate relative to each other. Pull the connecting rod assembly 2 to release the positioning mechanism 21. The connecting rod assembly 2 can rotate relative to the base 1. Open the connecting rod assembly 2 to a horizontal state, and rotate the main backrest 3 to make the backrest plate 301 rotate outwards to a state facing the user. The hook structure 206 and the locking structure 30 are locked with the clutch structure 20, and the positioning mechanism 21 is also locked to completely fix the main backrest 3. When it is necessary to expand the support area, press down the telescopic shaft 406 on the auxiliary backrest 4 to release the auxiliary backrest 4 from the main backrest 3. After adjusting the height of the auxiliary backrest 4 to a suitable position, release the pressing on the telescopic shaft 406, and the auxiliary backrest 4 is locked.

[0060] According to the disclosure and teachings of the above specification, those skilled in the art of the present invention can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A human body support device for bathing, characterized in that: The utility model comprises a base (1), a connecting rod assembly (2) and a main backrest (3), wherein one end of the connecting rod assembly (2) is rotatably connected to the base (1), and the main backrest (3) is rotatably connected to the other end of the connecting rod assembly (2); the main backrest (3) can rotate clockwise or counterclockwise around the other end of the connecting rod assembly (2) toward the base (1) at a certain angle.

2. The human body support device for bathing according to claim 1, characterized in that: The invention also comprises a secondary backrest (4), wherein the secondary backrest (4) is connected to the main backrest (3) in a lifting manner, and the secondary backrest (4) can move along one end surface of the main backrest (3). The secondary backrest (4) comprises a main beam (401), a bracket (402), a telescopic shaft (406), a fourth spring (408), a wedge (410) and a convex key (405). The bracket (402) is connected to the main beam (401), and the bracket (402) is telescopically connected to the main backrest (3). The telescopic shaft (406) is arranged in the bracket (402), the wedge (410) is arranged on one end of the telescopic shaft (406), the fourth spring (408) is sleeved on the telescopic shaft (406), the convex key (405) is telescopically connected to the side wall of the bracket (402), and the inward end of the convex key (405) can be engaged with the wedge (410).

3. The human body support device for bathing according to claim 1, characterized in that: The connecting rod assembly (2) comprises a positioning mechanism (21) and a first pivot (101), wherein the positioning mechanism (21) is arranged in the connecting rod assembly (2), the first pivot (101) is arranged at the rotation center of the connecting rod assembly (2) and the base (1), the first pivot (101) is provided with a rotation surface and a limit surface, the positioning mechanism (21) comprises a lever arm (201), a first shaft sleeve (202), a positioning pin (203) and a first elastic element (204), the first shaft sleeve (202) is sleeved on the first pivot (101), one end of the positioning pin (203) is fixed on the first shaft sleeve (202), and the positioning pin (203) is provided with a first elastic element (204). 03) is inserted into the rear end of the lever arm (201), the positioning pin (203) can move along the length direction of the lever arm (201), the first elastic element (204) applies pressure to the positioning pin (203), a limiting groove (2011) is provided on the side wall of the lever arm (201), the limiting groove (2011) includes a rotating part and a limiting part, the rotating part is rotatably matched with the rotating surface, the limiting part can be engaged with the limiting surface, the connecting rod assembly (2) is rotated, the lever arm (201) moves under the pressure of the first elastic element (204), the first pivot (101) moves along the limiting groove (2011), and the locking state is changed.

4. The human body support device for bathing according to claim 1, characterized in that: The base (1) comprises a limit pin (102), which is arranged on the base (1) and is within the rotation range of the connecting rod assembly (2).

5. The human body support device for bathing according to claim 3, characterized in that: The connecting rod assembly (2) also includes a second shaft sleeve (212) and a second pivot (210), wherein the second pivot (210) is arranged on the other end of the connecting rod assembly (2), and the second shaft sleeve (212) is sleeved on the second pivot (210). The main backrest (3) includes a backrest plate (301), a clutch structure (20), a locking structure (30) and a hook structure (206), wherein the clutch structure (20) is arranged on the inner side of the backrest plate (301), the clutch structure (20) is sleeved on the second shaft sleeve (212), the locking structure (30) is arranged on one side of the clutch structure (20), and the hook structure (206) is arranged on the connecting rod assembly (2), and the hook structure (206), the clutch structure (20) and the locking structure (30) form a structure for limiting the relative rotation of the connecting rod assembly (2) and the main backrest (3).

6. The human body support device for bathing according to claim 5, characterized in that: The clutch structure (20) comprises a first limit member (207), a second limit member (208) and a second elastic element (209); the first limit member (207) is sleeved on the second shaft sleeve (212); the second limit member (208) is coaxially fixed on the second pivot (210); one end of the second elastic element (209) abuts against the first limit member (207) and the other end abuts against the second shaft sleeve (212); the first limit member (207) can slide axially along the axis of the second shaft sleeve (212); the clutch structure (20), the locking structure (30) and the hook structure (206) cooperate to complete the clutch of the second shaft sleeve (212) and the connecting rod assembly (2).

7. The human body support device for bathing according to claim 6, characterized in that: The locking structure (30) comprises a push plate (304), a locking member (303), a first spring (305) and a fixing member (306), wherein the fixing member (306) is arranged on the inner side of the support plate (301), the push plate (304) is connected to the locking member (303), and the push plate (304) is slidably connected to the fixing member (306), the first spring (305) is arranged between the fixing member (306) and the locking member (303), and the locking member (303) is locked with the first limiting member (207); the hook structure (206) comprises a fixing plate (215), A hook claw (213) and a second spring (214), the fixing plate (215) is arranged on the connecting rod assembly (2), the hook claw (213) is slidably connected to the fixing plate (215), and a portion of the hook claw (213) penetrates the side wall of the lever arm (201) and contacts the hook structure (206), the second spring (214) is arranged between the fixing plate (215) and the hook claw (213), the second spring (214) pushes the hook claw (213) to contact the first limiting member (207), and the hook claw (213) can be connected with the first limiting member (207).

8. The human body support device for bathing according to claim 6, characterized in that: The first limiting member (207) is provided with a hook groove (2071), an axial pushing portion (2072) and a clamping groove (2073); the hook groove (2071) is arranged on the first limiting member (207); the axial pushing portion (2072) protrudes from the end surface of the first limiting member (207); and the clamping groove (2073) is arranged on the first limiting member (207) away from the hook groove (2071).

9. The human body support device for bathing according to claim 5, characterized in that: The main backrest (3) further comprises a limit member (216) and a third spring (217), wherein the limit member (216) is arranged on the second pivot (210), and one end of the third spring (217) is connected to the limit member (216), and the other end is connected to the backrest (301).

10. The human body support device for bathing according to claim 1, characterized in that: It also comprises an elastic clip (5), wherein the elastic clip (5) is fixed on the wall, and the connecting rod assembly (2) can be clamped with the elastic clip (5).

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