A multi-link linkage-based walking stick chair and unfolding method

Abstract

The application discloses a kind of based on multi-connecting rod linkage's walking stick chair and unfolding method, it is related to the technical field of assisting travel and rest equipment, including base, seat part and supporting leg part, seat part and supporting leg part can be unfolded and folded;The multi-connecting rod linkage's walking stick chair strengthens, fuses the function of walking stick and chair, user can be converted between walking stick and seat two forms according to actual demand, improve the practicability and applicability of product, it is suitable for people who are inconvenient or need frequent rest;Armrest adopts the design of "T" type and curve, outer wall is provided with anti-skid line and slide, can better fit the holding action of user, facilitate user to grip when using as walking stick, and the seat plate side rotatably installs extension plate, linkage unfolding can increase the area of seat plate, improve the comfort of user when sitting.

Description

Technical Field

[0001] This invention relates to the field of assistive travel and rest equipment technology, specifically to a cane chair based on multi-link linkage and its unfolding method. Background Technology

[0002] In the field of assistive travel and rest equipment, traditional travel aids and rest facilities are often limited in function for people with mobility impairments or who need to rest frequently.

[0003] For example, a cane only provides support for walking, while a chair is not convenient to move or carry.

[0004] While some multifunctional auxiliary devices exist on the market, they still suffer from the following technical shortcomings:

[0005] The product has a complex structure and is cumbersome to operate, making it difficult for users to quickly switch between different functions.

[0006] Its stability is poor, and it cannot provide reliable support for users when used as a seat;

[0007] The seat area is fixed, which cannot meet the seating needs of different users.

[0008] When in use, it cannot well balance the needs of functional diversity, ease of operation, stability and comfort, making it difficult to meet the actual use scenarios in daily life. Summary of the Invention

[0009] The purpose of this invention is to provide a cane chair based on multi-link linkage and its unfolding method, so as to solve the problems of limited functionality, inconvenient operation, poor stability and insufficient comfort of existing auxiliary equipment.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a cane chair based on multi-link linkage, comprising a base, a seat, and support legs;

[0011] The base includes a main rod, which serves as a load-bearing component, and a handrail and a first rubber sleeve are respectively provided at both ends of the main rod;

[0012] The seat section, which is assembled on the main rod via a linkage assembly, a first connector, and a second connector, includes a seat plate, and the seat section is capable of being unfolded and folded.

[0013] The support legs can be unfolded and folded. When unfolded, they support the main rod and the seat. When folded, they fit snugly against the main rod.

[0014] Furthermore, the first connector is fixed to the outer wall of the main rod, and the second connector is slidably disposed on the outer wall of the main rod.

[0015] Furthermore, the linkage assembly includes a first link, a first reinforcing link, a second link, a second reinforcing link, a slider, and a slide rail.

[0016] Furthermore, both first links are rotatably connected to the first connector, and the second link is located between the two first links and rotatably connected to the first connector;

[0017] The slide rails are of two types and are respectively arranged on the extension plate, and the sliders are arranged in the slide rails;

[0018] The end of the first connecting rod away from the main rod is rotatably connected to the slider, and the end of the second connecting rod away from the main rod is rotatably connected to the seat plate.

[0019] Furthermore, the two ends of the first reinforcing link are respectively rotatably connected to the middle part of the first link and the second connecting member, and the two ends of the second reinforcing link are respectively rotatably connected to the middle part of the second link and the second connecting member.

[0020] Furthermore, the pivot points where the first connecting rod, the second connecting rod, and the first connecting member are rotatably connected are on the same horizontal plane. In the unfolded state, the first connecting rod and the second connecting rod are radially distributed along the axis of the main rod.

[0021] Furthermore, the outrigger includes,

[0022] A third connector is disposed on the main rod. A first support rod is rotatably disposed on the third connector. A second support rod is disposed at the end of the first support rod. A second rubber sleeve is disposed at the end of the second support rod away from the first support rod.

[0023] Furthermore, the outrigger also includes a first reinforcing rod, a second reinforcing rod, and a third reinforcing rod;

[0024] The first reinforcing rod is rotatably mounted on the third connector, and the second reinforcing rod is disposed at the end of the first reinforcing rod;

[0025] One end of the third reinforcing rod is rotatably connected to the third connecting member, and the other end is rotatably connected to the middle section of the first rod.

[0026] Furthermore, the handrail is configured in a "T" shape and is curved.

[0027] Furthermore, the end of the seat plate near the main rod is rotatably connected to the second connecting member.

[0028] A method for unfolding a cane chair based on multi-link linkage, comprising: a cane chair as described above; including:

[0029] S1. The user unfolds the cane chair and pulls the seat away from the main pole;

[0030] S2. The user pulls the first and second support rods away from the main rod.

[0031] S3. After completing steps S1 and S2 above, the user can use it as a chair;

[0032] S4. The user folds the cane chair and pushes the first and second support bars toward the main bar (101);

[0033] S5. Push the seat plate towards the main rod;

[0034] S6. After completing steps S4 and S5, the user can use it as a cane.

[0035] Compared with the prior art, the present invention provides a cane chair based on multi-link linkage and unfolding method, which integrates the functions of cane and chair. Users can switch between cane and chair forms according to actual needs, improving the practicality and applicability of the product, and is suitable for people with mobility difficulties or who need to rest frequently.

[0036] The armrests feature a T-shaped, curved design with anti-slip textures and tracks on the outer wall, which better conform to the user's gripping motion and make it easier for the user to hold when using it as a cane. The seat has extension plates that can be rotated and installed on both sides, which can be extended to increase the seat area and improve the user's comfort when sitting.

[0037] Based on the setup of the linkage group, the first support rod, the second support rod, and the connector, the stability principle of the triangular structure is utilized to improve the support stability of the seat plate and the reliability of the overall structure. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0039] Figure 1 A schematic diagram of the first integral structure for reinforcing the cane chair provided in an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of the second integral structure for reinforcing the cane chair provided in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the support leg provided in an embodiment of the present invention;

[0042] Figure 4 This is a first structural schematic diagram of the seat portion provided in an embodiment of the present invention;

[0043] Figure 5 This is a first structural schematic diagram of the seat portion provided in an embodiment of the present invention;

[0044] Figure 6 This is a schematic diagram of the folded state of the cane chair provided in an embodiment of the present invention.

[0045] Explanation of reference numerals in the attached figures:

[0046] 100. Base; 101. Main rod; 102. First rubber sleeve; 103. Armrest; 200. Seat section; 201. First connector; 202. Linkage assembly; 202a. First link; 202a-1. First reinforcing link; 202b. Second link; 202b-1. Second reinforcing link; 202c. Slider; 202c-1. Slide rail; 203. Seat plate; 203a. Extension plate ; 204, Second connecting piece; 300, Support leg; 301, Third connecting piece; 302, First support rod; 302a, Second support rod; 302b, Second rubber sleeve; 303, First reinforcing support rod; 303a, Second reinforcing support rod; 304, Spring; 305, Third reinforcing support rod; 306, Link hook; 307, Locking hook; 307a, Sliding buckle; 400, Drive unit; 401, Connecting pin. Detailed Implementation

[0047] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0048] Please see the appendix Figure 1-5 As an embodiment of the present invention, a cane chair based on multi-link linkage is provided, which includes a base 100, and a seat part 200 and a support leg part 300 disposed on the base 100.

[0049] The seat 200 and the leg rests 300 can be unfolded.

[0050] Regarding matrix 100, including,

[0051] Main rod 101 is used as a load-bearing component;

[0052] A handrail 103 is provided at the top of the main pole 101, and a first rubber sleeve 102 is provided at the bottom of the main pole 101;

[0053] Regarding seat section 200, including,

[0054] The first connector 201 is fixedly installed on the outer wall of the main rod 101 and is used as the first load-bearing component of the seat part 200.

[0055] The second connector 204 is slidably disposed on the outer wall of the main rod 101 and located in the direction of the first connector 201 near the user's arm, and is used as the second support member of the seat part 200;

[0056] Specifically, both the first connector 201 and the second connector 204 are designed as circular sleeves;

[0057] The seat plate 203 is assembled with the first connector 201 and the second connector 204 via the connecting rod assembly 202. The extension plates 203a are rotatably installed on both sides of the seat plate 203 to increase the area of ​​the seat plate 203, thereby improving the comfort of the user when sitting. In this embodiment, the end of the seat plate 203 near the main rod 101 is rotatably connected to the second connector 204.

[0058] Linkage assembly 202 includes a first link 202a, a first reinforcing link 202a-1, a second link 202b, a second reinforcing link 202b-1, a slider 202c, and a slide rail 202c-1, wherein,

[0059] The number of first connecting rods 202a is set to two, and the ends of the two first connecting rods 202a are rotatably connected to the first connecting member 201. The second connecting rod 202b is located between the two first connecting rods 202a and is rotatably connected to the first connecting member 201.

[0060] Two slides 202c-1 are provided, each located on an extension plate 203a.

[0061] There are two sliders 202c, which are slidably set in slide rail 202c-1 respectively, and the sliders 202c and slide rail 202c-1 are adapted to each other;

[0062] The end of the first connecting rod 202a away from the main rod 101 is rotatably connected to the slider 202c, and its rotation direction includes two intersecting degrees of freedom;

[0063] The end of the second link 202b away from the main link 101 can be supported to the lower end face of the seat plate 203;

[0064] Specifically, a support block adapted to the second link 202b is provided on the end face of the seat plate 203 near the second link 202b. With this arrangement, in the unfolded state, the second link 202b can support the seat plate 203 and avoid the second link 202b causing movement interference to the first link 202a and the seat plate 203 during the folding process.

[0065] The two ends of the first reinforcing link 202a-1 are respectively rotatably connected to the middle part of the first link 202a and the second connecting piece 204;

[0066] The two ends of the second reinforcing link 202b-1 are respectively rotatably connected to the middle part of the second link 202b and the second connecting piece 204;

[0067] Specifically, the pivot points of the first link 202a, the second link 202b and the first connector 201 are on the same horizontal plane. The swing planes of the two first links 202a and the one second link 202b are set at an angle to each other. That is, when the first link 202a and the second link 202b are in the folded state, they can fit against the main rod 101. When the first link 202a and the second link 202b are in the unfolded state, the first link 202a and the second link 202b are radially distributed along the axis of the main rod 101.

[0068] When in use, the seat plate 203 can be folded and unfolded with the main rod 101 through the linkage 202, the first connector 201, and the second connector 204. In the folded state, the user uses the main rod 101 as a cane. In the unfolded state, the user uses the seat plate 203 and the main rod 101 together as a chair.

[0069] Regarding the outrigger 300, including,

[0070] The third connector 301 is slidably mounted on the main rod 101 and located on the side of the first connector 201 away from the user's hand;

[0071] There are two first support rods 302, each rotatably mounted on the first connector 201.

[0072] Specifically, the pivot points of the two first support rods 302 and the first connector 201 are on the same horizontal plane, and the swing planes of the two first support rods 302 are set at an angle to each other. That is, when the two first support rods 302 are in the folded state, they can fit against the main rod 101. When the two third support rods are in the unfolded state, the two third support rods are radially distributed along the axis of the main rod 101.

[0073] The number of second support rods 302a is adapted to the number of first support rods 302, and they are rotatably mounted at the end of the first support rod 302. A second rubber sleeve 302b is provided at the end of any second support rod 302a that is away from the first support rod 302.

[0074] The first reinforcing rod 303 is rotatably mounted on the third connector 301. The end of the first reinforcing rod 303 away from the third connector 301 is rotatably provided with a second reinforcing rod 303a. The end of the second reinforcing rod 303a away from the first reinforcing rod 303 is rotatably connected to the middle section of the second rod 302a.

[0075] The third reinforcing rod 305 is rotatably connected at one end to the third connecting piece 301, and rotatably connected at the other end to the middle section of the first rod 302;

[0076] For ease of description, the above-mentioned middle section refers to the part of the outer wall of the pole that is 1 / 3 or 1 / 4 of the distance from the two ends of the pole. The position of the middle section can be adjusted according to design requirements.

[0077] Spring 304 has one end located between two first connecting rods 202a and connected to the first connecting rods 202a via a cable and a connecting rod, and the other end located on a third connecting member 301. The third connecting member 301 is provided with a mounting hook for mounting spring 304.

[0078] A torsion spring is provided at the rotatable connection between the seat plate 203 and the second connecting member 204;

[0079] Thus, through the synergistic effect of the torsion spring and spring 304, a continuous auxiliary driving force can be provided for the unfolding process of the cane chair, effectively reducing the user's operating force, enabling it to unfold smoothly and automatically, and improving ease of use.

[0080] In practical applications, the user folds the seat plate 203 and extension plate 203a of the seat part 200 to fit the main rod 101, and folds the first support rod 302 and second support rod 302a of the leg part 300 to fit the main rod 101. At this time, this embodiment can be used as a cane. The user unfolds the seat plate 203 and extension plate 203a of the seat part 200, unfolds the first support rod 302 and second support rod 302a of the leg part 300, and places it on the ground. The main rod 101 is tilted, and the seat is unfolded. At this time, this embodiment can be used as a seat for the user to rest.

[0081] Please see the appendix Figure 1 As another embodiment of the present invention, an armrest 103 for reinforcing the aforementioned cane chair is provided, comprising an armrest 103 configured as a "T" shape and curved, with anti-slip texture and a slide 202c-1 on its outer wall. This shape design allows the armrest 103 to better fit the user's grip, facilitating subsequent operations.

[0082] Please see the appendix Figure 1-6 As another embodiment of the present invention, a driving method for the above-mentioned cane chair is provided, which includes a driving part 400 and a connecting pin 401;

[0083] The drive unit 400 is built into the main rod 101. The drive unit includes a motor, a lead screw, and a lead screw nut. The lead screw nut is connected to the second connecting member 204 through a connecting pin 401.

[0084] In use, the motor output of the drive unit 400 drives the lead screw to rotate. Based on the lead screw and lead nut transmission principle, the lead nut is displaced, thereby driving the second connecting member 204 to move, thus providing an electric drive for the aforementioned cane chair, making it convenient for users to use.

[0085] In one feasible implementation, a linkage hook 306 is also provided between the second connector 204 and the third connector 301, thereby realizing the linkage between the second connector 204 and the third connector 301, improving the overall structural stability and ease of use.

[0086] In one feasible implementation, a locking hook 307 is also provided on the lower end face of the seat plate 203, and a sliding buckle 307a is provided on the main rod near the first connecting member 201. The sliding buckle 307a is adapted to the locking hook 307. In the folded state, the locking hook 307 can hook onto the sliding buckle 307a to achieve locking in the folded state. When the user needs to unfold the cane chair, the locking hook 307 and the sliding buckle 307a are released to unfold the cane chair.

[0087] Please see the appendix Figure 1-6 As another embodiment of the present invention, a method for using the aforementioned cane chair is provided. The initial state is the folded state mentioned in Embodiment 1. The unfolding of the cane chair includes the following steps:

[0088] S1. The user unfolds the cane chair and pulls the second connector 204 away from the armrest 103, and the seat 203 is pulled away from the main rod 101. At this time, the components included in the seat part 200 move in the following states:

[0089] Slider 202c slides along slide rail 202c-1, and its sliding direction is gradually away from main rod 101;

[0090] The first link 202a and the second link 202b move in a direction away from the main rod 101 until they unfold into a radial shape.

[0091] The first reinforcing link 202a-1 and the second reinforcing link 202b-1 move with the first link 202a and the second link 202b, moving away from the seat plate 203. In the fully extended state, any one of the first link 202a, the first reinforcing link 202a-1, and the extension plate 203a forms a triangle, and the second link 202b, the second reinforcing link 202b-1, and the seat plate 203 forms a triangle. Thus, the support stability of the seat plate 203 is improved through the three triangular structures.

[0092] The second connector 204 slides along the outer wall of the main rod 101 in a direction away from the first connector 201;

[0093] S2. The user pulls the first support rod 302 and the second support rod 302a away from the main rod 101. At this time, the components included in the support leg 300 move in the following state:

[0094] Both the first support rod 302 and the second support rod 302a move away from the main rod 101. The first reinforcing support rod 303 and the second reinforcing support rod 303a unfold, and the third reinforcing support rod 305 moves accordingly. In the fully unfolded state, the first support rod 302, the second support rod 302a, and the main rod 101 form a triangle, and the first support rod 302, the main rod 101, and the third reinforcing support rod 305 form a triangle. This triangular structure enhances the stability of the support legs for the main rod 101 and the seat 200.

[0095] S3. After completing the above steps S1 and S2, the cane chair included in the present invention is unfolded, and the user can use it as a chair.

[0096] S4. The user folds the cane chair and pulls the second connector 204 toward the armrest 103, thereby causing the seat 203 to move toward the main rod 101. At the same time, the extension plate 203a folds relative to the seat 203 until it is in contact with the main rod 101. The first support rod 302 and the second support rod 302a are pushed toward the main rod 101. At this time, the components included in the support leg 300 move in the following states:

[0097] The first support rod 302 and the second support rod 302a both move toward the direction of the main rod 101, the first reinforcing support rod 303 and the second reinforcing support rod 303a retract, and the third reinforcing support rod 305 moves accordingly.

[0098] As the first support rod 302 and the second support rod 302a gradually approach the main rod 101, the triangle originally formed by the first support rod 302, the second support rod 302a, and the main rod 101, as well as the triangle formed by the first support rod 302, the main rod 101, and the third reinforcing support rod 305, gradually deforms and disappears, and the support of the outriggers on the main rod 101 and the seat 200 is released.

[0099] S5. The seat plate 203 moves toward the main rod 101. At this time, the components included in the seat part 200 move in the following state:

[0100] Slider 202c slides along slide rail 202c-1, and its sliding direction is to gradually approach the main rod 101.

[0101] The first link 202a and the second link 202b move toward the main rod 101, gradually converging from a radial shape.

[0102] The first reinforcing link 202a-1 and the second reinforcing link 202b-1 move with the first link 202a and the second link 202b, moving towards the seat plate 203; as each link moves, the triangle originally formed by any one of the first link 202a, the first reinforcing link 202a-1, and the extension plate 203a, and the triangle formed by the second link 202b, the second reinforcing link 202b-1, and the seat plate 203, gradually deforms until it disappears, and the support structure of the seat plate 203 changes;

[0103] The second connector 204 slides along the outer wall of the main rod 101 toward the direction close to the first connector 201, returning to the initial positioning state;

[0104] S6. After completing steps S4 and S5 above, the cane chair of the present invention is folded so that the user can use it as a cane.

[0105] Compared with the prior art, the present invention has the following characteristics:

[0106] Combining the functions of a cane and a chair, users can switch between the two modes according to their actual needs, enhancing the product's practicality and applicability, making it suitable for people with mobility difficulties or those who need to rest frequently.

[0107] The armrest 103 adopts a "T" shape and a curved design. The outer wall is provided with anti-slip texture and slide 202c-1, which can better fit the user's gripping action and make it easier for the user to grip when using it as a cane. The seat 203 has an extension plate 203a that is rotated and installed on both sides. When the extension plate is opened in conjunction, the area of ​​the seat 203 can be increased, which can improve the comfort of the user when sitting.

[0108] Based on the linkage 202, the first support rod 302, the second support rod 302a, and the connecting parts, the stability principle of the triangular structure is utilized to improve the support stability of the seat plate 203 and the reliability of the overall structure.

[0109] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cane chair based on multi-link linkage, characterized in that, It includes a base (100), a seat (200), and a leg (300). The base (100) includes a main rod (101), which serves as a load-bearing component. Handrails (103) and first rubber sleeves (102) are respectively provided at both ends of the main rod (101). The seat part (200) is assembled on the main rod (101) via a linkage group (202), a first connector (201), and a second connector (204), and includes a seat plate (203). The seat part (200) can be unfolded and folded. The outrigger (300) can be unfolded and folded. When unfolded, it supports the main rod (101) and the seat (200). When folded, it fits against the main rod (101).

2. The cane chair based on multi-link linkage according to claim 1, characterized in that, The first connector (201) is fixed to the outer wall of the main rod (101), and the second connector (204) is slidably disposed on the outer wall of the main rod (101).

3. A cane chair based on multi-link linkage according to claim 2, characterized in that, The linkage assembly (202) includes a first link (202a), a first reinforcing link (202a-1), a second link (202b), a second reinforcing link (202b-1), a slider (202c), and a slide rail (202c-1).

4. A cane chair based on multi-link linkage according to claim 3, characterized in that, Both first connecting rods (202a) are rotatably connected to the first connecting member (201), and the second connecting rod (202b) is located between the two first connecting rods (202a) and rotatably connected to the first connecting member (201); There are two slides (202c-1) and they are respectively set on the extension plate (203a). The slider (202c) is set in the slide (202c-1). The end of the first connecting rod (202a) away from the main rod (101) is rotatably connected to the slider (202c).

5. A cane chair based on multi-link linkage according to claim 4, characterized in that, The two ends of the first reinforcing link (202a-1) are respectively rotatably connected to the middle part of the first link (202a) and the second connector (204), and the two ends of the second reinforcing link (202b-1) are respectively rotatably connected to the middle part of the second link (202b) and the second connector (204).

6. A cane chair based on multi-link linkage according to claim 4, characterized in that, The pivot points of the first connecting rod (202a), the second connecting rod (202b) and the first connecting member (201) are on the same horizontal plane. In the unfolded state, the first connecting rod (202a) and the second connecting rod (202b) are radially distributed along the axis of the main rod (101).

7. A cane chair based on multi-link linkage according to claim 1, characterized in that, The outrigger (300) includes, A third connector (301) is disposed on the main rod (101). A first support rod (302) is rotatably disposed on the third connector (301). A second support rod (302a) is disposed at the end of the first support rod (302). A second rubber sleeve (302b) is disposed at the end of the second support rod (302a) away from the first support rod (302).

8. A cane chair based on multi-link linkage according to claim 7, characterized in that, The outrigger (300) also includes a first reinforcing rod (303), a second reinforcing rod (303a), and a third reinforcing rod (305). The first reinforcing rod (303) is rotatably mounted on the third connector (301), and the second reinforcing rod (303a) is disposed at the end of the first reinforcing rod (303); One end of the third reinforcing rod (305) is rotatably connected to the third connector (301), and the other end is rotatably connected to the middle section of the first rod (302).

9. A cane chair based on multi-link linkage according to claim 1, characterized in that, The armrest (103) is set in a "T" shape and is curved. The end of the seat plate (203) near the main rod (101) is rotatably connected to the second connector (204).

10. A method for unfolding a cane chair based on multi-link linkage, characterized in that, Includes the cane chair as described in any one of claims 1 to 9; include, S1. The user unfolds the cane chair and pulls the second connector (204) along the main rod (101) away from the armrest (103), and the seat (203) moves away from the main rod (101); S2, The user pushes and pulls the first support rod (302) and the second support rod (302a) away from the main rod (101); S3. After completing steps S1 and S2 above, the user can use it as a chair; S4. The user folds the cane chair and pulls the second connector (204) along the main rod (101) toward the armrest (103), and the first support rod (302) and the second support rod (302a) move toward the main rod (101); S5, the seat plate (203) moves toward the main rod (101); S6. After completing steps S4 and S5, the user can use it as a cane.

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