Crutch chair

Abstract

The invention discloses a crutch chair which comprises a left support frame, a right support frame and a seat assembly, the seat assembly comprises a left side plate, a middle plate and a right side plate, the left side plate is movably connected with the left support frame, the right side plate is movably connected with the right support frame, the left side plate is provided with a first inner side part and a first outer side part, and the right side plate is provided with a second inner side part and a second outer side part; the first inner side part and the second inner side part are rotatably connected with the two sides of the middle plate respectively, the position where the walking stick chair stays in the folding process comprises a half-folding position and a full-folding position, and when the walking stick chair is located at the half-folding position, the full-folding position is located at the full-folding position. The left supporting frame and the right supporting frame are folded and drawn close in the front-back direction of the seat assembly, the seat assembly is folded and drawn close to the left supporting frame and the right supporting frame, and when the walking stick chair is located at the full folding position, the left supporting frame and the right supporting frame are drawn close in the left-right direction of the seat assembly, and the first outer side part and the second outer side part are drawn close. The folding chair is simple in structure and convenient to fold.

Description

[Technical field]

[0001] The invention relates to a crutch chair. [Background technology]

[0002] Elderly people or people with limited mobility often need to stop and rest to recover their strength during walking. For this reason, cane chairs have appeared on the market. When the cane chair is folded, it can be used as a cane to assist walking. When the cane chair is unfolded, the user can sit on the unfolded seat assembly to rest. However, the traditional cane chair has a complex structure and is not flexible and convenient to fold.

[0003] Therefore, the present invention is just produced based on the above shortcomings. [Summary of the invention]

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a crutch chair which has a simple structure and is easy to fold.

[0005] The present invention is achieved through the following technical solutions:

[0006] A crutch chair has an unfolded seat state and a folded crutch state, comprising a left support frame and a right support frame that can be unfolded or folded respectively, the left support frame and the right support frame are arranged at a distance from each other, and a seat assembly movably connected to the left support frame and the right support frame and capable of being unfolded or folded relative to the two is provided between the left support frame and the right support frame, the seat assembly comprises a left side plate, a middle plate and a right side plate, the left side plate is movably connected to the left support frame, the right side plate is movably connected to the right support frame, the left side plate has a first inner side portion and a first outer side portion, the right side plate has a second inner side portion and a second outer side portion, the first The inner side portion and the second inner side portion are rotatably connected to both sides of the middle plate respectively, and the position where the crutch chair stays during the folding and folding process includes a semi-folded position and a fully folded position reached after further folding from the semi-folded position. When the crutch chair is in the semi-folded position, the left support frame and the right support frame are folded and brought together in the front-to-rear direction of the seat assembly respectively, and the seat assembly is folded and brought together to the left support frame and the right support frame. When the crutch chair is in the fully folded position, the left support frame and the right support frame are brought together in the left-to-right direction of the seat assembly and the first outer side portion and the second outer side portion are brought together.

[0007] The left support frame includes a left front rod and a left rear rod that cross each other and can rotate relative to each other, the front side of the left side panel is rotatably connected to the upper end of the left rear rod, the left front rod is provided with a first connecting position and a second connecting position that can be connected to the rear side of the left side panel, the right support frame includes a right front rod and a right rear rod that cross each other and can rotate relative to each other, the front side of the right side panel is rotatably connected to the upper end of the right rear rod, and the right front rod is provided with a third connecting position and a fourth connecting position that can be connected to the rear side of the right side panel. When the rear side of the left side panel is connected to the first connecting position and the rear side panel is connected to the third connecting position, the seat assembly is unfolded relative to the left support frame and the right support frame, and when the rear side of the left side panel moves to the second connecting position and the rear side panel moves to the fourth connecting position, the seat assembly is folded and brought closer relative to the left support frame and the right support frame.

[0008] The rear side of the left side plate is rotatably connected to a left sliding member, and the left sliding member is slidably connected to the left front rod and can move between a first connection position and a second connection position; the rear side of the right side plate is rotatably connected to a right sliding member, and the right sliding member is slidably connected to the right front rod and can move between a third connection position and a fourth connection position.

[0009] A left connecting seat is fixedly provided on the left support frame and located below the seat assembly, a right connecting seat is fixedly provided on the right support frame and located below the seat assembly, an intermediate seat is provided between the left connecting seat and the right connecting seat, the intermediate seat is rotatably connected to the left connecting seat around a first axis, the intermediate seat is rotatably connected to the right connecting seat around a second axis parallel to the first axis, the intermediate plate is rotatably connected to the first inner side portion around a third axis, the intermediate plate is rotatably connected to the second inner side portion around a fourth axis parallel to the third axis, and when the crutch chair is in a semi-folded position, the first axis coincides with the third axis and the second axis coincides with the fourth axis.

[0010] The left rear rod is located on the outside of the left front rod, the left connecting seat is fixed on the left front rod and located at the intersection of the left front rod and the left rear rod; the right rear rod is located on the outside of the right front rod, the right connecting seat is fixed on the right front rod and located at the intersection of the right front rod and the right rear rod.

[0011] The lower end of the left front rod is provided with an inclined first step. When the left front rod and the left rear rod rotate relative to each other and are folded together, the lower end of the left rear rod moves to the first step; the lower end of the right front rod is provided with an inclined second step. When the right front rod and the right rear rod rotate relative to each other and are folded together, the lower end of the right rear rod moves to the second step.

[0012] A support rod rotatably connected to the middle seat and the front side of the middle plate is provided between the middle seat and the front side of the middle plate.

[0013] A left handle is disposed at the upper end of the left support frame, and a right handle is disposed at the upper end of the right support frame. When the crutch chair is in a fully folded position, the left handle and the right handle are fitted and connected to each other to form a crutch handle.

[0014] The right handle is provided with a protruding engaging portion, and the left handle is provided with a recessed groove which can engage with the engaging portion when the left handle is engaged with the right handle.

[0015] The left front rod is provided with a left limit block capable of supporting the left sliding member and limiting the rear side of the left side plate to the first connection position, and the right front rod is provided with a right limit block capable of supporting the right sliding member and limiting the rear side of the right side plate to the third connection position.

[0016] Compared with the prior art, the present invention has the following advantages: when the crutch chair of the present invention is in the unfolded state, the left support frame and the right support frame are both in the unfolded state and supported on the ground, and the seat assembly is unfolded relative to the left support frame and the right support frame for the user to sit and rest. When the crutch chair needs to be folded, the left support frame and the right support frame are first folded in the front and rear directions of the seat assembly respectively. In this process, the seat assembly is also movable relative to the left support frame and the right support frame and folded and close to the left support frame and the right support frame. At this time, the crutch chair reaches a semi-folded position, and then the left side panel and the left support frame are operated to rotate relative to the middle panel and the right side panel are operated to rotate relative to the middle panel, so that the left support frame and the right support frame are close to each other in the left and right directions of the seat assembly, and the first outer side portion of the left side panel and the second outer side portion of the right side panel are also close to each other. At this time, the crutch chair is further folded to reach the fully folded position, and the left side panel, the middle panel and the right side panel surround the upper parts of the left support frame and the right support frame from three sides, and the originally unfolded left support frame and the right support frame are folded and close to form a rod-shaped component, which can be used as a crutch. The entire crutch chair has a simple structure and can be folded easily and flexibly in two steps.

Brief Description of the Drawings

[0017] Figure 1 It is one of the three-dimensional diagrams of the present invention when it is in the seat state;

[0018] Figure 2 This is the second stereoscopic diagram of the present invention in a seat state;

[0019] Figure 3 is a side view of the present invention in a seat state;

[0020] Figure 4 is a cross-sectional view of the present invention in a seat state;

[0021] Figure 5 is a side view of the present invention during folding;

[0022] Figure 6is a side view of the present invention in a semi-folded position;

[0023] Figure 7 is one of the three-dimensional views of the present invention in a semi-folded position;

[0024] Figure 8 is the second stereoscopic view of the present invention in a semi-folded position;

[0025] Fig. 9 is a stereoscopic view of the present invention during the process of moving from a half-folded position to a fully folded position;

[0026] Fig.10 is one of the three-dimensional views of the present invention in the fully folded position;

[0027] Fig.11 This is the second stereoscopic view of the present invention in the fully folded position. [Specific implementation method]

[0028] The present invention will be further described below in conjunction with the accompanying drawings:

[0029] like Figure 1 and Fig.10 As shown, a crutch chair has an unfolded seat state and a folded crutch state. In the seat state, the user can sit and rest, and in the folded state, the chair can be used as a crutch to assist the user in walking.

[0030] like Figures 1 to 11 As shown, the crutch chair comprises a left support frame 1 and a right support frame 2 which can be respectively unfolded or folded, the left support frame 1 and the right support frame 2 are arranged at intervals from each other, and a seat assembly 3 which is movably connected with the left support frame 1 and the right support frame 2 and can be unfolded or folded relative to the left support frame 1 and the right support frame 2 is arranged between the left support frame 1 and the right support frame 2. When the left support frame 1 and the right support frame 2 are both in the unfolded state, the lower ends of the support frame 1 and the right support frame 2 are supported on the ground, and the seat assembly 3 is unfolded relative to the left support frame 1 and the right support frame 2, and the user can sit on the seat assembly 3 to rest. When walking assistance is needed, the user folds the left support frame 1 and the right support frame 2 respectively, and the seat assembly 3 is also folded, thereby converting the seat state into the crutch state.

[0031] like Figures 1 to 11As shown, the seat assembly 3 includes a left side panel 31, a middle panel 32 and a right side panel 33, the left side panel 31 is movably connected to the left support frame 1, the right side panel 33 is movably connected to the right support frame 2, the left side panel 31 has a first inner side portion 311 and a first outer side portion 312, the right side panel 33 has a second inner side portion 331 and a second outer side portion 332, the first inner side portion 311 and the second inner side portion 331 are rotatably connected to the two sides of the middle panel 32 respectively, and the crutch chair is folded and folded. The position where the crutch chair stays includes a semi-folded position and a fully folded position reached after further folding from the semi-folded position. When the crutch chair is in the semi-folded position, the left support frame 1 and the right support frame 2 are folded together in the front-to-rear direction of the seat assembly 3 respectively, and the seat assembly 3 is folded together to the left support frame 1 and the right support frame 2. When the crutch chair is in the fully folded position, the left support frame 1 and the right support frame 2 are close to each other in the left-right direction of the seat assembly 3, and the first outer side portion 312 and the second outer side portion 332 are close to each other. Therefore, the folding operation of the crutch chair of the present embodiment is completed in two steps. The first step is to fold the crutch chair in the unfolded state to the semi-folded position, and the second step is to fold the crutch chair in the semi-folded position to the fully folded position. The specific operation is: first, the left support frame 1 and the right support frame 2 are folded in the front and rear directions of the seat assembly 3 respectively. During this process, the seat assembly 3 also moves relative to the left support frame 1 and the right support frame 2 and folds close to the left support frame 1 and the right support frame 2. At this time, the crutch chair reaches the semi-folded position, and then the left side panel 31 and the left support frame 1 are operated to rotate relative to the middle panel 32 and The right side plate 33 and the right support frame 2 are rotated relative to the middle plate 32, and the left support frame 1 and the right support frame 2 are brought closer to each other in the left and right directions of the seat assembly 3, and the first outer side portion 312 on the left side plate 31 and the second outer side portion 332 on the right side plate 33 are also brought closer to each other. At this time, the crutch chair is further folded to reach the fully folded position. At this time, the left side plate 31, the middle plate 32 and the right side plate 33 surround the upper part of the left support frame 1 and the right support frame 2 from three sides, and the originally unfolded left support frame 1 and the right support frame 2 are folded and brought closer to form a rod-shaped component, which can be used as a crutch. The entire crutch chair has a simple structure, and it is also convenient and flexible to fold through a two-step folding action.

[0032] like Figures 1 to 8As shown, the left support frame 1 includes a left front rod 11 and a left rear rod 12 that cross each other and can rotate relative to each other, the front side of the left side plate 31 is rotatably connected to the upper end of the left rear rod 12, and the left front rod 11 is provided with a first connection position 111 and a second connection position 112 that can be connected to the rear side of the left side plate 31. The right support frame 2 includes a right front rod 21 and a right rear rod 22 that cross each other and can rotate relative to each other, the front side of the right side plate 33 is rotatably connected to the upper end of the right rear rod 22, and the right front rod 2 1 is provided with a third connection position 211 and a fourth connection position 212 which can be connected to the rear side of the right side panel 33. When the rear side of the left side panel 31 is connected to the first connection position 111 and the rear side of the right side panel 33 is connected to the third connection position 211, the seat assembly 3 is unfolded relative to the left support frame 1 and the right support frame 2. When the rear side of the left side panel 31 moves to the second connection position 112 and the rear side of the right side panel 33 moves to the fourth connection position 212, the seat assembly 3 is folded and brought closer relative to the left support frame 1 and the right support frame 2. When the crutch chair moves from the unfolded position to the semi-folded position, it is only necessary to pull the rear side of the middle panel 32 to move the rear side of the left side panel 31 from the first connection position 111 to the second connection position 112 and the rear side of the right side panel 33 from the third connection position 211 to the fourth connection position 212. During this movement, the front side of the left side panel 31 rotates relative to the left rear rod 12 and pulls the left rear rod 12, and the front side of the right side panel 33 rotates relative to the right rear rod 22 and pulls the right rear rod 22, so that the left front rod 11 and the left rear rod 12 rotate relative to each other and move closer in the front-to-back direction of the seat assembly 3, and the right front rod 21 and the right rear rod 22 rotate relative to each other and move closer in the front-to-back direction of the seat assembly 3, and the left side panel 31 and the right side panel 33 also move closer to the left front rod 11 and the right front rod 21 respectively, and the crutch chair reaches the semi-folded position.

[0033] like Figures 1 to 11As shown, the left side panel 31 is rotatably connected to a left sliding member 41 at the rear side, and the left sliding member 41 is slidably connected to the left front rod 11 and can move between the first connection position 111 and the second connection position 112; the right side panel 33 is rotatably connected to a right sliding member 42 at the rear side, and the right sliding member 42 is slidably connected to the right front rod 21 and can move between the third connection position 211 and the fourth connection position 212. When the middle panel 32 is pulled upward, the left sliding member 41 slides upward from the first connection position 111 along the left front rod 11 to the second connection position 112, and the right sliding member 42 slides upward from the third connection position 211 along the right front rod 21 to the fourth connection position 212. In this process, the left sliding member 41 rotates relative to the left side panel 31 and the right sliding member 42 rotates relative to the right side panel 33, ensuring that the seat assembly 3 is smoothly and flexibly folded and brought close to the left front rod 11 and the right front rod 21. Of course, the rear side of the left side plate 31 can also be configured to be detachably connected to the left front rod 11 and the rear side of the right side plate 33 can also be configured to be detachably connected to the right front rod 21. When the crutch chair needs to be folded, it is only necessary to disconnect the rear side of the left side plate 31 from the first connection position 111 and the rear side of the right side plate 33 from the third connection position 211, and then snap the rear side of the left side plate 31 to the second connection position 112 and snap the rear side of the right side plate 33 to the fourth connection position 212. In this embodiment, the left sliding member 41 and the right sliding member 42 are both cylindrical and sleeved on the left front rod 11 and the right front rod 21.

[0034] like Figure 4 , Figure 5 and Figure 8 As shown, the left front bar 11 is provided with a left limit block 17 that can support the left sliding member 41 and limit the rear side of the left side plate 31 to the first connection position 111, and the right front bar 21 is provided with a right limit block 27 that can support the right sliding member 42 and limit the rear side of the right side plate 33 to the third connection position 211. The left limit block 17 and the right limit block 27 can limit the left sliding member 41 and the right sliding member 42 to ensure that the seat assembly 3 is in a suitable position when unfolded. In addition, when the user sits on the seat assembly 3, the first limit block 17 and the second limit block 27 play a supporting and limiting role, so that the crutch chair does not need a separate locking mechanism in the unfolded state, which is a very clever design.

[0035] like Figures 1 to 11As shown, a left connecting seat 13 is fixedly provided on the left support frame 1 and located below the seat assembly 3, a right connecting seat 23 is fixedly provided on the right support frame 2 and located below the seat assembly 3, an intermediate seat 5 is provided between the left connecting seat 13 and the right connecting seat 23, the intermediate seat 5 is rotatably connected with the left connecting seat 13 around a first axis A, the intermediate seat 5 is rotatably connected with the right connecting seat 23 around a second axis B parallel to the first axis A, the intermediate plate 32 is rotatably connected with the first inner side portion 311 around a third axis C, the intermediate plate 32 is rotatably connected with the second inner side portion 331 around a fourth axis D parallel to the third axis C, and when the crutch chair is in a semi-folded position, the first axis A coincides with the third axis C and the second axis B coincides with the fourth axis D. The left connecting seat 13, the intermediate seat 5 and the right connecting seat 23 are provided below the seat assembly 3, so as to enhance the structural strength of the entire crutch chair and improve the carrying capacity. Moreover, in the semi-folded position, since the first axis A coincides with the third axis C and the second axis B coincides with the fourth axis D, the left side panel 31 and the right side panel 33 rotate relative to the middle panel 32, and the left connecting seat 13 and the right connecting seat 23 can also rotate relative to the middle seat 5, thereby ensuring that the left front rod 11 and the left rear rod 12 that have been folded in the front-to-back direction of the seat assembly 3 can be close to the right front rod 21 and the right rear rod 22 that have been folded in the left-to-right direction of the seat assembly 3, ensuring that the crutch chair is compactly folded in the fully folded position.

[0036] like Figure 1 and Figure 8 As shown, a support rod 6 is provided between the middle seat 5 and the front side of the middle plate 32, which is rotatably connected to the middle seat 5 and the middle plate 32. When the crutch chair is in the unfolded state, the support rod 6 supports the middle plate 32, and the carrying capacity of the crutch chair is increased. When the crutch chair is folded, the upper and lower ends of the support rod 6 rotate relative to the middle plate 32 and the middle seat 5, respectively, so that the seat assembly 3 can be close to the left support frame 1 and the right support frame 2.

[0037] like Figure 1 , Figure 2 , Figure 7 , Figure 8 and Fig.11 As shown, the left rear rod 12 is located on the outside of the left front rod 11, and the left connecting seat 13 is fixed on the left front rod 11 and located at the intersection of the left front rod 11 and the left rear rod 12; the right rear rod 22 is located on the outside of the right front rod 21, and the right connecting seat 23 is fixed on the right front rod 21 and located at the intersection of the right front rod 21 and the right rear rod 22, thereby ensuring that the entire crutch chair has a simple and compact structure and high structural strength.

[0038] like Figure 1 , Figure 2 , Figure 7 , Figure 8 and Fig.11As shown, the lower end of the left front rod 11 is provided with an inclined first step 14, and when the left front rod 11 and the left rear rod 12 rotate relative to each other and fold together, the lower end of the left rear rod 12 matches the first step 14; the lower end of the right front rod 21 is provided with an inclined second step 24, and when the right front rod 21 and the right rear rod 22 rotate relative to each other and fold together, the lower end of the right rear rod 22 matches the second step 24. Therefore, when the crutch chair is in the fully folded position and used as a crutch, the left front rod 11, the left rear rod 12, the right front rod 21 and the right rear rod 22 are folded together and are very compact, which is convenient for users to use. Moreover, since the plane angle at which the lower ends of the left rear rod 12 and the right rear rod 22 contact the ground will change after they are rotated and folded, an inclined first step 14 and a second step 24 are provided on the left front rod 11 and the right front rod 21. When the left support frame 1 and the right support frame 2 are respectively folded, the lower end plane of the left rear rod 12 can be matched and positioned with the first step 14, and the lower end plane of the right rear rod 22 can be matched and positioned with the second step 24.

[0039] like Figure 1 and Fig.10 As shown, the upper end of the left support frame 1 is provided with a left handle 15, and the upper end of the right support frame 2 is provided with a right handle 25. When the crutch chair is in the fully folded position, the left handle 15 and the right handle 25 are connected to each other to form a crutch handle 7. The left handle 15 and the right handle 25 facilitate the user to drag the unfolded crutch chair to move the position, and when the crutch chair is in the fully folded position, the user can assist walking by holding the crutch handle 7.

[0040] like Figure 8 and Fig.11 As shown, the right handle 25 is provided with a protruding engaging portion 26 , and the left handle 15 is provided with a recessed groove 16 that can engage with the engaging portion 26 when the left handle 15 is engaged with the right handle 25 .

[0041] like Figure 1 , Figure 2 and Fig.11As shown, the second outer portion 332 is provided with a hook 333, and the first outer portion 312 is provided with a hole 313 that can be engaged with the hook 333 when the crutch chair is in the fully folded position. When the hole 313 is engaged with the hook 333, the crutch chair is locked in the fully folded position, so that it can be used as a crutch. When the crutch chair needs to be unfolded and used as a seat, disengage the latch hole 313 and the latch hook 333, and then rotate the left support frame 1 and the right support frame 2 to both sides, so that the left side plate 31 and the right side plate 33 are rotated and unfolded relative to the middle plate 32, and then push the middle plate 32 downward, so that the rear side of the left side plate 31 moves from the second connecting position 112 to the first connecting position 111 and the rear side of the right side plate 33 moves from the fourth connecting position 212 to the third connecting position 211, and the seat assembly 3 is unfolded relative to the left support frame 1 and the right support frame 2. During this process, the left front rod 11 and the left rear rod 12 are unfolded in the front-to-back direction of the seat assembly 3, and the right front rod 21 and the right rear rod 22 are also unfolded in the front-to-back direction of the seat assembly 3, and finally reach the fully unfolded position.

[0042] The present embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A crutch chair, having an unfolded seat state and a folded crutch state, characterized in that: The invention comprises a left support frame (1) and a right support frame (2) which can be respectively unfolded or folded, wherein the left support frame (1) and the right support frame (2) are arranged at a distance from each other, and a seat assembly (3) is arranged between the left support frame (1) and the right support frame (2) and is movably connected to the two support frames and can be unfolded or folded relative to the two support frames, wherein the seat assembly (3) comprises a left side plate (31), a middle plate (32) and a right side plate (33), wherein the left side plate (31) is movably connected to the left support frame (1), and the right side plate (33) is movably connected to the right support frame (2), wherein the left side plate (31) has a first inner side portion (311) and a first outer side portion (312), wherein the right side plate (33) has a second inner side portion (331) and a second outer side portion (332), wherein the second inner side portion (331) and the second outer side portion (332) are respectively arranged on the left support frame (1) and the right support frame (2) and the right support frame (33) are respectively arranged on the left support frame (1) and the right support frame (2) and the right support frame (33) are respectively arranged on the right support frame (33) and the right support frame (33) are respectively arranged on the right support frame (33) and the left support frame (31 ... An inner side portion (311) and a second inner side portion (331) are rotatably connected to two sides of the middle plate (32), respectively. In addition, the position where the crutch chair stays during the folding and folding process includes a semi-folded position and a fully folded position reached after further folding from the semi-folded position. When the crutch chair is in the semi-folded position, the left support frame (1) and the right support frame (2) are folded together in the front-rear direction of the seat assembly (3), respectively, and the seat assembly (3) is folded together onto the left support frame (1) and the right support frame (2). When the crutch chair is in the fully folded position, the left support frame (1) and the right support frame (2) are brought together in the left-right direction of the seat assembly (3), and the first outer side portion (312) and the second outer side portion (332) are brought together.

2. The crutch chair according to claim 1, characterized in that: The left support frame (1) comprises a left front rod (11) and a left rear rod (12) which cross each other and can rotate relative to each other, the front side of the left side plate (31) is rotatably connected to the upper end of the left rear rod (12), the left front rod (11) is provided with a first connection position (111) and a second connection position (112) which can be connected to the rear side of the left side plate (31), the right support frame (2) comprises a right front rod (21) and a right rear rod (22) which cross each other and can rotate relative to each other, the front side of the right side plate (33) is rotatably connected to the upper end of the right rear rod (22), the right front rod (21) is provided with A third connection position (211) and a fourth connection position (212) that can be connected to the rear side of the right side panel (33); when the rear side of the left side panel (31) is connected to the first connection position (111) and the rear side of the right side panel (33) is connected to the third connection position (211), the seat assembly (3) is unfolded relative to the left support frame (1) and the right support frame (2); when the rear side of the left side panel (31) moves to the second connection position (112) and the rear side of the right side panel (33) moves to the fourth connection position (212), the seat assembly (3) is folded and brought closer relative to the left support frame (1) and the right support frame (2).

3. The crutch chair according to claim 2, characterized in that: The rear side of the left side plate (31) is rotatably connected to a left sliding member (41), and the left sliding member (41) is slidably connected to the left front rod (11) and can move between a first connection position (111) and a second connection position (112); the rear side of the right side plate (33) is rotatably connected to a right sliding member (42), and the right sliding member (42) is slidably connected to the right front rod (21) and can move between a third connection position (211) and a fourth connection position (212).

4. The crutch chair according to claim 2 or 3, characterized in that: A left connecting seat (13) is fixedly provided on the left support frame (1) and located below the seat assembly (3); a right connecting seat (23) is fixedly provided on the right support frame (2) and located below the seat assembly (3); an intermediate seat (5) is provided between the left connecting seat (13) and the right connecting seat (23); the intermediate seat (5) and the left connecting seat (13) are rotatably connected around a first axis (A); the intermediate seat (5) and the right connecting seat (23) are rotatably connected around a second axis (B) parallel to the first axis (A); the intermediate plate (32) and the first inner side portion (311) are rotatably connected around a third axis (C); the intermediate plate (32) and the second inner side portion (331) are rotatably connected around a fourth axis (D) parallel to the third axis (C); when the crutch chair is in a semi-folded position, the first axis (A) coincides with the third axis (C) and the second axis (B) coincides with the fourth axis (D).

5. The crutch chair according to claim 4, characterized in that: The left rear rod (12) is located outside the left front rod (11), and the left connecting seat (13) is fixed on the left front rod (11) and located at the intersection of the left front rod (11) and the left rear rod (12); the right rear rod (22) is located outside the right front rod (21), and the right connecting seat (23) is fixed on the right front rod (21) and located at the intersection of the right front rod (21) and the right rear rod (22).

6. The crutch chair according to claim 5, characterized in that: The lower end of the left front rod (11) is provided with an inclined first step (14), and when the left front rod (11) and the left rear rod (12) rotate relative to each other and are folded together, the lower end of the left rear rod (12) moves to the first step (14); the lower end of the right front rod (21) is provided with an inclined second step (24), and when the right front rod (21) and the right rear rod (22) rotate relative to each other and are folded together, the lower end of the right rear rod (22) moves to the second step (24).

7. The crutch chair according to claim 4, characterized in that: A support rod (6) is provided between the middle seat (5) and the front side of the middle plate (32) and is rotatably connected to the two.

8. The crutch chair according to claim 1, characterized in that: The upper end of the left support frame (1) is provided with a left handle (15), and the upper end of the right support frame (2) is provided with a right handle (25). When the crutch chair is in a fully folded position, the left handle (15) and the right handle (25) are connected to each other to form a crutch handle (7).

9. The crutch chair according to claim 8, characterized in that: The right handle (25) is provided with a protruding engaging portion (26), and the left handle (15) is provided with a recessed groove (16) which can engage with the engaging portion (26) when the left handle (15) is engaged with the right handle (25).

10. The crutch chair according to claim 3, characterized in that: The left front rod (11) is provided with a left limit block (17) capable of supporting a left sliding member (41) and limiting the rear side of the left side plate (31) to a first connection position (111), and the right front rod (21) is provided with a right limit block (27) capable of supporting a right sliding member (42) and limiting the rear side of the right side plate (33) to a third connection position (211).

Images