TWI727876B - Folding displacement bath chair structure - Google Patents

Abstract

The present invention provides a foldable displacement bath chair structure, which mainly includes a seat unit and a seat support unit, and the seat unit includes a movable seat cushion and at least two sliding elements arranged under the movable seat cushion, and the The sliding elements are each provided with at least one roller and a seat positioning member; the seat support unit includes four folding units, four chair legs, two side pipes, and two cushion pipes, and each folding unit includes a connection The first connecting portion of the chair leg, a second connecting portion connecting the side tube body and a third connecting portion connecting the cushion tube body are provided with at least one seat positioning hole, and the A folding switch element is provided on the equal side tube body, each cushion tube body is provided with the sliding element, and the roller of the sliding element drives the movable cushion to move on the cushion tube body; the folding switch element makes the The chair legs connected by the folding unit are displaced relative to the cushion tube body.

Description

Folding displacement bath chair structure

The invention relates to a chair, in particular to a shower chair structure that is foldable and convenient for displacement.

In recent years, for the elderly or people with mobility impairments, bath chairs are often used to assist them in bathing or showering. Most of the current designs use pipe fittings to directly fasten the body of the chair with the backrest. The bath chair designed in this way tends to be Occupies a certain volume and has the disadvantage of not being easy to store.

At the same time, when the conventional bath chair needs to move during the bathing process, it is usually a laborious, time-consuming and difficult task for the caregiver who takes care of the disabled. For the disabled, it is prone to danger. Therefore, how to improve the conventional bath chair so that it can be easily displaced during the bathing process, and to facilitate storage after use is the object of the present invention.

The purpose of the present invention is to provide a foldable displacement bathing chair structure, which allows users to move conveniently during bathing, and is also convenient to store after use, so as to improve the convenience and safety of operation and solve the problem of conventional bathing. The chair problem.

To achieve the above objective, the present invention provides a foldable displacement bath chair structure, which mainly includes a seat unit and a seat support unit, and the seat unit includes a movable seat cushion and at least two under the movable seat cushion. A sliding element, wherein each of the sliding elements is provided with at least one roller, and at least one of the sliding elements is provided with a seat positioning member, two sliding connectors pivotally connected to the seat positioning member, and two ends connected to the sliding connector The connecting wire body and a sliding return spring pivotally connected to the seat positioning member; the seat support unit includes four folding units, four chair legs, two side pipes and two cushion pipes, each of which is folded The unit includes a first connecting portion connecting the chair leg, a second connecting portion connecting the side tube, and a third connecting portion connecting the cushion tube, and at least one seat is provided on the cushion tube Positioning holes, and a folding switch element is provided on the side pipes, wherein each of the cushion pipes is provided with the sliding element, and the roller of the sliding element drives the movable cushion to move on the cushion pipe. , And the seat positioning hole is for the seat positioning member to position and fix the movable seat cushion; and the folding switch element makes the chair legs connected to the first connecting parts of the folding units relative to the cushion tube The body is displaced.

Further, the folding unit further includes a first pivoting unit provided with the first connecting portion and the second connecting portion, and a second pivoting unit provided with the third connecting portion, and the first pivoting unit The pivot unit is provided with a first pivot hole at the opposite end of the first connecting portion, and the second connecting portion is located between the first connecting portion and the first pivot hole and extends from the first pivot unit The side is projected outward to form a tube shape to accommodate the side tube, and the second pivot unit is provided with a second pivot hole corresponding to the first pivot hole. The first pivot hole and the second pivot hole are provided with a second pivot hole. A pivoting member penetrates through the pivot hole to make the first pivot unit rotate relative to the second pivot unit.

Further, two of the folding units have a fixed pin slide groove formed in the second connecting portion, and a fixed pin and a fixed pin return spring received in the fixed pin slide groove, and the second pivot unit At least one folding positioning hole is provided on a pivoting surface of the first pivoting unit, wherein one end of the fixing pin penetrates the first pivoting unit to be positioned at the at least one folding positioning hole, and The other end is connected with a fixed pin linkage, and is connected with the folding switch element connected to the other end of the fixed pin linkage.

Further, the side tube body is further provided with a side tube body groove and a folding switch cover body covering the side tube body groove, and the folding switch element includes being accommodated in the side tube body and passing through It is limited to a switch stop part of the foldable switch cover, and one end of the switch stop part is connected to the fixed pin linkage.

Further, one end of the seat cushion tube connected to the third connecting part is provided with a seat cushion tube locator, and the third connecting part is provided with at least one seat cushion tube positioning hole, wherein the seat cushion tube positioning hole accommodates The seat tube body locator.

Further, one end of the chair leg connected to the first connecting portion is provided with at least one chair leg positioning hole, and the chair leg positioning hole of the first connecting portion is provided with a chair leg locator opposite to the chair leg positioning holes, wherein One of the chair leg positioning holes can accommodate the chair leg locator.

Further, the seat unit is provided with a sliding control switch on one side, and the sliding control switch is connected to the other end of a sliding connection piece, and controls the seat positioning piece pivotally connected to one end of the sliding connection piece from the seat Detach from the positioning hole.

Further, the seat unit is pivoted with a bendable backrest element and two detachable auxiliary side grips, the bendable backrest element includes a backrest and at least one backrest control switch, wherein the backrest control switch controls the backrest The movable seat cushion is bent.

Further, the backrest control switch includes a first positioning backrest pivot member with two first limit slots, a backrest positioning member with two backrest limit blocks, and a second backrest with at least three second limit slots. Position the backrest pivot member and a backrest control switch pivot member, wherein the backrest positioning member is further provided with a backrest positioning chamber to accommodate a backrest return spring, and the backrest limit blocks are accommodated in the corresponding first A limiting slot and at least two second limiting slots.

Further, a seat rotating unit is provided between the movable seat cushion and the sliding elements, and the seat rotating unit includes: a first plate body, a positioner arranged on the first plate body, and a positioner arranged on the first plate body. A first plate body and a pivot shaft located in the positioner, a limit fixer provided on the first plate body and located on the outer peripheral side of the positioner, wherein the pivot shaft is pivotally connected to the movable cushion And the first plate, and the positioner is provided with a plurality of pockets, a plurality of balls and a plurality of rotation positioning holes, the pockets contain a ball, the balls abut the movable cushion, and the The rotary positioning hole is provided in the positioner, and the limit fixer has a limit rod, a set of return springs arranged on the limit rod, and a set of limits arranged on the limit rod and sleeved in the return spring. The position rod connector and a limit fixing part, wherein the limit fixing part accommodates the limit rod, the return spring, and the limit rod connector, and the limit rod connector is inserted into the Rotate in the positioning hole.

In order to achieve the above-mentioned and other objectives, the foldable displacement bath chair structure of the present invention adopts the technical means, components and effects thereof. Here is a preferred embodiment with drawings to illustrate the following.

Here are a few preferred implementation aspects of the technical features and operation methods of this application, and they will be described in conjunction with the illustration below for review and reference. Furthermore, the figures in the present invention are not necessarily drawn according to the actual scale for the convenience of explanation, and the proportions in the figures are not used to limit the scope of the present invention.

Regarding the technology of the present invention, please refer to Figures 1 to 21. The present invention provides a foldable displacement bath chair structure, which mainly includes a seat unit 10 and a seat support unit 20, wherein:

The seat unit 10, please refer to Figure 1, Figure 2, Figure 3 and Figure 15, which includes a movable seat cushion 11, a bendable backrest element 12, and two detachable auxiliary side grips Please refer to Figure 8 for the handle 13 and the three sliding elements 14 provided under the movable cushion 11, where each of the sliding elements 14 is provided with a sliding upper cover (not marked) and a sliding lower cover (not marked) ), four screws (not numbered) and two rollers 141 for fixing the sliding upper cover and the sliding lower cover, and at least one of the sliding elements 14 is provided with a seat positioning member 142, and two sliding members pivotally connected to the seat positioning member 142 The connecting piece 143 and the two connecting wire bodies 144, and one end of the seat positioning piece 142 is pivotally provided with a sliding return spring 145, and the sliding return spring 145 abuts at least one of the upper sliding cover or the lower sliding cover, and One end of each connecting wire body 144 is connected to a corresponding one of the sliding connecting pieces 143; please refer to Figures 9 to 14, as shown in Figures 9 to 14, the seat unit 10 is provided with a detachable auxiliary side grip on each side The handle 13 and a sliding control switch 15 located below the detachable auxiliary side grip 13, each of the sliding control switches 15 is connected to the other end of a corresponding one of the sliding connecting pieces 143, so that the sliding control switch 15 controls the Slide the connecting member 143 and drive the seat positioning member 142 pivotally connected at one end to act, so that the seat positioning member 142 is disengaged from the seat positioning hole 241. Please refer to Figures 9 to 12, thereby , Control the seat unit 10 to a movable unlocked state and move to the left and right sides, please refer to Figures 13 to 14, or control the seat unit 10 to a non-movable fixed state; please Referring to Figures 15 to 21, the seat unit 10 is pivoted with the bendable backrest element 12, the bendable backrest element 12 includes a backrest 121 and a backrest control switch 122, wherein the The backrest control switch 122 controls the backrest 121 to bend relative to the movable cushion 11; the backrest control switch 122 includes a first positioning backrest pivot member 1222 with two first limit grooves 1221, and one has two backrest limit blocks Backrest positioning member 1224 of 1223, a second positioning backrest pivot member 1226 with three second limit slots 1225, and a backrest control switch pivot member 1227: Please refer to Figures 16 to 21 again, where, The backrest positioning member 1224 is further provided with a backrest positioning chamber 1228 to accommodate a backrest return spring 1229, and the backrest limit blocks 1223 are accommodated in the corresponding first limit slots 1221 and two of the corresponding ones Waiting in the second limit slot 1225, when the user presses the backrest control switch 122, the first positioning backrest pivot member 1222 bends the backrest 121 toward the movable cushion 11, and the backrest is bent to a predetermined position. The return spring 1229 will return.

The seat support unit 20 includes four folding units 21, four chair legs 22, two side pipes 23 and two cushion pipes 24. Please refer to Figures 1 to 4, and each of the folding units 21 includes a first pivot unit 211 and a second pivot unit 212 pivotally connected to it. Please refer to FIG. 4 again, wherein the first pivot unit 211 has a first pivot unit 211 connected to a chair leg 22 A connecting portion 2111, a second connecting portion 2112 connecting the side tube body 23 and a first pivot hole 2113 opposite to the other end of the first connecting portion 2111, and the second connecting portion 2112 is located at the first connecting portion 2112. The connecting portion 2111 and the first pivot hole 2113 are protruded outwardly from the peripheral side of the first pivot unit 211 to form a tube shape to accommodate the side tube 23, and the second pivot unit 212 is connected The end of the cushion tube 24 is provided with a third connecting portion 2121, and the second pivoting unit 212 is provided with a second pivoting hole 2122 corresponding to the first pivoting hole 2113. The first pivoting hole 2113 is connected to the first pivoting hole 2113. The second pivot hole 2122 is provided with a pivot member 213 so that the first pivot unit 211 rotates relative to the second pivot unit 212, wherein at least one seat positioner is provided on the cushion tubes 24 Hole 241, and the side tube bodies 23 are provided with a folding switch element 30, and two of the folding units 21 are provided with a fixing pin slide groove in the second connecting portion 2112 of the folding unit 21 2114, and a fixing pin 2115 received in the fixing pin sliding groove 2114 and a fixing pin reset spring 2116 abutting one end of the fixing pin 2115, and the second pivot unit 212 is relatively pivotally connected to the first pivot One of the pivoting surfaces 2123 of the unit 211 is provided with two folding positioning holes 2124, wherein one end of the fixing pin 2115 penetrates the first pivoting unit 211 and is positioned at one of the folding positioning holes 2124, and the other One end is connected in parallel to a fixed pin linkage 31, and is connected to the folding switch element 30 connected to the other end of the fixed pin linkage 31. In this embodiment, the folding units 21 at both ends of the same side tube body 23 are connected. Among them, only one folding unit 21 is provided with the fixing pin 2115, but it is not limited to this;

In addition, the side tube body 23 is further provided with a side tube body groove 231 and a folding switch cover 232 covering the side tube body groove 231, and the folding switch element 30 includes the side tube The inside of the body 23 and the penetration limit is located at a switch abutment portion 32 of the foldable switch cover 232, and one end of the switch abutment portion 32 is connected to the fixed pin linkage 31;

Also, please refer to Figure 4, one end of the cushion tube 24 connected to the third connecting portion 2121 is provided with two cushion tube locators 242, and the third connecting portion 2121 is provided with two cushion tube positioning holes 2125, wherein the seat cushion tube positioning hole 2125 accommodates a corresponding one of the seat cushion tube positioners 242;

Furthermore, one end of the leg 22 connected to the first connecting portion 2111 is provided with a plurality of leg positioning holes 221, and the leg positioning holes 211 of the first connecting portion 2111 are provided with a leg locator 2117 opposite to the leg positioning holes 211 , Wherein one of the chair leg positioning holes 221 can accommodate the chair leg positioner 2117.

Wherein, each of the cushion tube body 24 is provided with the sliding element 14. Please refer to Figures 9 to 14. The sliding control switch 15 controls the seat positioning member 142 at the other end of the sliding connector 143. The seat positioning hole 241 is disengaged, so that the roller 141 of the sliding element 14 drives the movable cushion 11 to move on the cushion tube body 24 to the position of the seat positioning hole 241, and then the seat positioning member 142 Automatically reset and position and fix in the seat positioning hole 241, thereby fixing the movable cushion 11;

Wherein, please refer to FIGS. 5 to 7 again, the folding switch element 30 makes the chair legs 22 connected to the first connecting portions 2111 of the folding units 21 face the cushion tube 23 Please refer to Figures 2 to 3 for displacement. Therefore, when the user slides the folding switch element 30, the switch abutment portion 32 will drive the fixed pin linkage 31 to drive the fixed pin 2115. The fixing pin 2115 compresses the fixing pin return spring 2116 in the fixing pin sliding groove 2114, and allows the fixing pin 2115 to disengage from the folding positioning hole 2124. In this way, the user can fold the chair legs 22 according to needs. , Or unfold the chair legs 22, and when the user releases the folding switch element 30, the fixed pin return spring 2116 causes the fixed pin 2115 to be repositioned in the folding positioning hole 2124.

Please refer to Figure 22 again, which is another embodiment of the foldable bath chair structure of the present invention. The main structural features are the same as those in the above-mentioned embodiment and will not be repeated here. The main difference between the two is that the other embodiment is A seat rotating unit 40 is provided between the moving cushion 11 and the sliding elements 14. The seat rotating unit 40 includes: a first plate 41, a positioner 42 arranged on the first plate 41, and a device A pivot shaft 43 on the first plate 41 and located in the positioner 42, and a limit fixer 44 provided on the first plate 41 and located on the outer peripheral side of the positioner 42, wherein the pivot The connecting shaft 43 is pivotally connected between the movable cushion 11 and the first plate 41, so that the movable cushion 11 is rotated about the pivoting shaft 43 as the center, and the positioner 42 is provided with a plurality of accommodating grooves 421. A plurality of balls 422 and a plurality of rotation positioning holes 423. Each of the pockets 421 accommodates a ball 422. The balls 422 abut the movable cushion 11 to assist the movable cushion 11 to rotate in direction, and the The equal-rotation positioning holes 423 are roughly evenly arranged on the positioner 42, and the limit fixer 44 has a limit rod 441, a set of return springs 442 arranged on the limit rod 441, and a set A limit rod connecting piece 443 and a limit fixing piece 444 arranged on the limit rod 441 and sleeved in the return spring 442, wherein the limit fixing piece 444 will accommodate and limit the limit rod 441 , The return spring 442 and the limit rod connector 443, whereby one end of the limit rod connector 443 can be inserted into a rotation positioning hole 423, so that the movable cushion 11 is restricted and fixed to In a predetermined direction, the other end of the limit rod connector 443 can provide the user to move in the direction of the other end of the rotation positioning hole 423, so that the limit rod connector 443 is moved away from the rotation positioning hole 423, and then After the movable cushion 11 can be rotated to a predetermined direction, the user then releases the limit rod 441, and the limit rod connector 443 is inserted into the rotation positioning hole 423 by the return spring 442.

Therefore, please refer to Figs. 23 and 25 again. When the limit rod 441 is pulled up, the limit connecting piece 443 will drive the return spring 442 and the limit rod connecting piece 443 to make the The limit rod connecting piece 443 is disengaged from the rotation positioning hole 423 of the positioner 42, so that the movable cushion 11 can be rotated in the required direction, that is, the movable cushion 11 will use the pivot shaft 43 to connect with The positioner 42 rotates relatively, and when it is rotated to a proper position, the limit rod connector 443 will be fixed and limited in the rotation positioning hole 423 of the positioner 42 by the elastic force of the return spring 442, so that The movable cushion 11 is fixed in one direction and no longer rotates. The positioner 42 of this embodiment is provided with four rotation positioning holes 423, and the rotation positioning holes 423 are evenly provided in the positioner 42 of the four directions, but not limited to this.

In summary, the present invention uses the rollers 141 of the sliding element 14 to allow the movable cushion 11 to move on the cushion tube 24 easily and effortlessly. It is difficult to move, and it will not cause deformation of the cushion tube body 24. At the same time, when the user wants to fold or unfold the chair leg 22, the folding switch element 30 can be slid, and the switch element 30 is used to control the fixing pin 2115 is separated from the folding positioning hole 2124 and can be easily operated.

The content of the present invention has been described in detail above, but the above are only preferred embodiments of the present invention, and should not be used to limit the scope of implementation of the present invention, that is, all equivalent changes and Modifications should still fall within the scope of the patent of the present invention.

10: Seating unit

11: Removable cushion

12: Foldable backrest element

121: Backrest 122: Backrest control switch 1221: The first limit slot 1222: first positioning backrest pivot 1223: backrest limit block 1224: backrest positioning piece 1225: second limit slot 1226: second positioning backrest pivot 1227: Backrest control switch pivot 1228: Backrest positioning chamber 1229: backrest return spring 13: Detachable auxiliary side grip 14: Sliding element 141: Wheel 142: Seat positioning parts 143: Sliding connector 144: connecting line body 145: Sliding return spring 15: Slide control switch 20: Seat support unit 21: Folding unit 211: The first pivot unit 2111: The first connection part 2112: The second connecting part 2113: The first pivot hole 2114: fixed pin chute 2115: fixed pin 2116: fixed pin return spring 2117: Chair leg locator 212: second pivot unit 2121: The third connecting part 2122: second pivot hole 2123: pivot surface 2124: Folding positioning hole 2125: Positioning hole for seat cushion tube 213: Pivot 22: Chair leg 221: Chair leg positioning hole 23: side tube body 231: Side tube groove 232: Folding switch cover 24: Cushion tube body 241: Seat positioning hole 242: Cushion tube locator 30: Folding the switching element 31: Fixed pin linkage 32: Switch stop 40: Seat rotation unit 41: The first board 42: locator 421: Conveyor 422: ball 423: Rotating positioning hole 43: pivot shaft 44: limit retainer 441: Limit Rod 442: return spring 443: limit rod connector 444: limit fixing

Figure 1: A schematic diagram of the three-dimensional assembly of the folding and displacement bath chair structure of the present invention. Figure 2 is a schematic diagram of the folded state of the folding displacement bath chair structure of the present invention. Figure 3 is a schematic view of the folded state of the foldable displacement bath chair structure of the present invention from another perspective. Figure 4: is a partial exploded schematic view of the folding unit of the folding displacement bath chair structure of the present invention. Figures 5 to 7: are schematic diagrams of the folding movement of the folding unit of the folding displacement bath chair structure of the present invention. Figure 8: is an exploded schematic view of the sliding elements of the folding displacement bath chair structure of the present invention. Figures 9-14: are schematic diagrams of the displacement of the seat unit of the foldable displacement bath chair structure of the present invention. Figure 15: is a partial exploded schematic view of the seat unit of the foldable displacement bath chair structure of the present invention. Figures 16 to 18: are schematic diagrams of the cross-sectional action of the backrest control switch of the foldable displacement bath chair structure of the present invention. Figures 19-21: are schematic diagrams of the side action of the backrest control switch of the foldable displacement bath chair structure of the present invention. Figure 22: is a partial exploded schematic view of the seat rotating unit of the folding displacement bath chair structure according to another embodiment of the present invention. Figures 23-25: are schematic diagrams of the rotation and fixing actions of the seat rotating unit according to another embodiment of the present invention.

10: Seating unit

11: Removable cushion

12: Foldable backrest element

13: Detachable auxiliary side grip

14: Sliding element

15: Slide control switch

20: Seat support unit

21: Folding unit

22: Chair leg

23: side tube body

30: Folding the switching element

Claims (10)

A foldable displacement bath chair structure mainly includes: a seat unit including a movable cushion and at least two sliding elements arranged under the movable cushion, wherein each of the sliding elements is provided with at least one roller, and At least one of the sliding elements is provided with a seat positioning piece, two sliding connecting pieces pivotally connected to the seat positioning piece, two connecting wire bodies connected to one end of the sliding connecting piece, and a sliding reset pivotally connected to the seat positioning piece Spring; a seat support unit, including four folding units, four chair legs, two side pipes and two cushion pipes, and each of the folding units includes a first connecting portion connected to the chair leg, a connection to the The second connecting part of the side tube body and a third connecting part connecting the cushion tube body, wherein the cushion tube bodies are provided with at least one seat positioning hole, and the side tube bodies are provided with a folding Switch element; wherein, each of the cushion tube body is provided with the sliding element, the roller of the sliding element drives the movable cushion to move on the cushion tube body, and the seat positioning hole is used for positioning and fixing the seat positioning member The movable seat cushion; wherein the folding switch element causes the chair legs connected to the first connecting portions of the folding units to be displaced relative to the cushion tube body. According to the foldable displacement bath chair structure of claim 1, further, the folding unit further includes a first pivoting unit provided with the first connecting portion and the second connecting portion, and a first pivoting unit provided with the second connecting portion The second pivoting unit of three connecting parts, and the first pivoting unit is provided with a first pivoting hole at the other end opposite to the first connecting part, and the second connecting part is located between the first connecting part and the first connecting part. Between a pivoting hole and protruding outward from the peripheral side of the first pivoting unit to form a tube shape to accommodate the side tube, and the second pivoting unit is provided with a second pivoting hole corresponding to the first pivoting hole A pivoting hole, the first pivoting hole and the second pivoting hole are provided with a pivoting member, so that the first pivoting unit rotates relative to the second pivoting unit. The foldable displacement bath chair structure according to claim 2, further, wherein a fixing pin sliding groove is formed in the second connecting portion of two folding units, and one of the fixing pin sliding grooves is accommodated in the fixing pin sliding groove A fixed pin and a fixed pin reset spring, and the second pivoting unit is provided with at least one folding positioning hole relative to a pivoting surface pivotally connected to the first pivoting unit, wherein one end of the fixed pin penetrates the first pivoting surface The pivot unit is positioned at at least one of the folding positioning holes, and the other end is connected with a fixed pin linkage, and is connected with the folding switch element connected to the other end of the fixed pin linkage. According to the foldable displacement bath chair structure described in claim 3, further, the side tube body is further provided with a side tube body groove and a folding switch cover body covering the side tube body groove, and the retractable The fold switch element includes a switch abutment part that is accommodated in the side tube and is restricted to the foldable switch cover, and one end of the switch abutment part is connected to the fixed pin linkage. According to the foldable displacement bath chair structure of claim 1, further, one end of the seat cushion tube connected to the third connecting part is provided with a seat cushion tube locator, and the third connecting part is provided with at least one seat cushion tube A body positioning hole, wherein the seat cushion tube body positioning hole accommodates the seat cushion tube body locator. According to the foldable displacement bath chair structure of claim 1, further, one end of the chair leg connected to the first connecting portion is provided with at least one chair leg positioning hole, and the chair leg positioning holes of the first connecting portion A chair leg locator is arranged at the opposite position, wherein one of the chair leg locating holes can accommodate the chair leg locator. According to the foldable displacement bath chair structure of claim 1, further, the seat unit is provided with a sliding control switch on one side, and the sliding control switch is connected to the other end of a sliding connector and controls the sliding connector The seat positioning member pivoted at one end is disengaged from the seat positioning hole. According to the foldable displacement bath chair structure of claim 1, further, the seat unit is pivotally provided with a bendable backrest element and two detachable auxiliary side grips, and the bendable backrest element includes a backrest and at least A backrest control switch, wherein the backrest control switch controls the backrest to bend relative to the movable cushion. According to the foldable displacement bath chair structure of claim 8, further, the backrest control switch includes a first positioning backrest pivot member with two first limit grooves, and a second backrest limit block provided with A backrest positioning member, a second positioning backrest pivot member with at least three second limit slots, and a backrest control switch pivot member, wherein the backrest positioning member is further provided with a backrest positioning chamber to accommodate a backrest return spring, The backrest limit blocks are accommodated in the corresponding first limit slots and at least two second limit slots. According to the foldable displacement bath chair structure of claim 1, further, a seat rotating unit is provided between the movable seat cushion and the sliding elements, and the seat rotating unit includes: a first plate body and a seat The positioner on the first plate body, a pivot shaft arranged on the first plate body and located in the positioner, and a limit fixer arranged on the first plate body and located on the outer peripheral side of the positioner , Wherein the pivot shaft is pivotally connected between the movable cushion and the first plate, and the positioner is provided with a plurality of pockets, a plurality of balls, and a plurality of rotating positioning holes, and the pockets contain a ball, The balls abut the movable cushion, and the rotation positioning holes are provided in the positioner, and the limit fixer has a limit rod, a set of return springs arranged on the limit rod, and a set of The limit rod is sheathed in the limit rod connector and a limit fastener in the return spring, wherein the limit fastener will accommodate the limit rod, the return spring and the limit rod connector , And the limiting rod connector will be inserted into the rotation positioning hole.

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