Arm support structure and walking aid cart

Abstract

The utility model provides an arm support structure and a walking-aiding cart, the arm support structure comprises a support frame, a handle assembly and a bracket assembly, the support frame comprises a support piece and a connecting pipe, one end of the support piece is fixedly connected to the connecting pipe, the handle assembly is telescopically connected to one end of the connecting pipe, the bracket assembly is rotatably connected to the connecting pipe, and the handle assembly is connected to the connecting pipe. The angle adjusting assembly is used for adjusting the angle of the bracket assembly; in this way, one end of the connecting pipe is fixedly connected with the supporting piece so that the strength and the bearing capacity of the whole supporting frame can be improved, the handle assembly is arranged to be of a telescopic structure so that the requirements of users of different figures can be met, meanwhile, the bracket assembly is rotated and expanded outwards so that the seat space of the walking-aid cart can be improved, and the walking-aid cart is convenient to use. Therefore, the comfort of the user is improved on the basis of meeting different user requirements and improving the bearing capacity of the arm support structure.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of trolley technology, in particular to an arm support structure and a walking aid trolley. BACKGROUND

[0002] A walking aid trolley is a device that can assist people with difficulty walking or loss of walking ability to take care of themselves, walk and walk like normal people. The existing walking aid trolley usually includes a walking aid trolley body that can assist movement and an arm support structure. The walking aid trolley body is used to carry the arm support structure, and the arm support structure is used to carry the user's arms, so that users with poor upper limb function can more easily carry out daily activities. However, the existing arm support structure support rod is connected and fixed with the connecting pipe for installing the handle assembly through a plastic part, and the armrest for carrying the arm is fixed to the plastic part, so that the carrying capacity of the arm support structure is limited, the strength is poor, and when a user with a heavy body weight is supported, it is easy to be damaged. Moreover, part of the existing armrest assembly is configured in the seat space of the walking aid trolley, which limits and reduces the space, resulting in a larger volume for sitting on the walking aid trolley, poor comfort, and affecting the user experience. CONTENT OF THE UTILITY MODEL

[0003] The present disclosure provides an arm support structure and a walking aid trolley to at least solve the above-mentioned problems in the prior art.

[0004] To achieve the above-mentioned purpose, the present disclosure provides the following technical solution: an arm support structure, comprising:

[0005] a support frame comprising a support member and a connecting pipe, one end of the support member being fixedly connected to the connecting pipe;

[0006] a handle assembly, the handle assembly being telescopically connected to one end of the connecting pipe;

[0007] an armrest assembly, the armrest assembly being rotatably connected to the connecting pipe for adjusting the angle of the armrest assembly, so that the armrest assembly switches between a first position and a second position; wherein,

[0008] the first position is the initial position of the armrest assembly, and the second position is the outwardly expanded position of the armrest assembly.

[0009] In an implementable manner, the armrest assembly comprises:

[0010] an armrest, the armrest being provided at the other end of the connecting pipe;

[0011] a fixing assembly, the fixing assembly being connected to the armrest and rotatably sleeved on the connecting pipe, the fixing assembly being provided with a guide hole;

[0012] A limiting member is received in the connecting pipe, one end of the limiting member extends into the guide hole through the pipe wall of the connecting pipe for guiding the fixed assembly to rotate around the connecting pipe.

[0013] In an embodiment, the guide hole is two oppositely arranged L-shaped slot holes, one part of each L-shaped slot hole extends along the axial direction of the connecting pipe, and the other part of each L-shaped slot hole extends along the circumferential direction of the connecting pipe.

[0014] When the end of each limiting member extends into one part of the L-shaped slot hole, it is used for guiding the fixed assembly to move in the axial direction of the connecting pipe, and when the end of each limiting member extends into the other part of the L-shaped slot hole, it is used for guiding the fixed assembly to rotate around the connecting pipe.

[0015] In an embodiment, the fixed assembly comprises:

[0016] A first fixing member movably sleeved on the connecting pipe and detachably connected to the holder, and used for fixing one end of the holder to the connecting pipe;

[0017] A second fixing member movably sleeved on the connecting pipe and detachably connected to the holder, and used for fixing the other end of the holder to the connecting pipe, and two L-shaped slot holes are arranged on opposite sides of the second fixing member.

[0018] In an embodiment, the second fixing member comprises:

[0019] A fixing body provided with a through hole, the connecting pipe is arranged in the fixing body along the through hole, and two L-shaped slot holes are arranged on opposite sides of the fixing body;

[0020] A second locking member, which is threadedly connected to the holder after passing through the fixing body, and is used for locking the fixing body to the holder.

[0021] In an embodiment, the fixing body is further provided with a threaded hole, the threaded hole is in communication with the inside and outside of the through hole, and the second fixing member further comprises a pressing member, one end of the pressing member is threadedly connected to the threaded hole and is used for pressing against the inner wall of the connecting pipe.

[0022] In an embodiment, the holder comprises:

[0023] A holder framework, which is fixed to the other end of the connecting pipe by the fixed assembly, and the cross-sectional shape of the holder framework along the direction perpendicular to the extension direction of the connecting pipe is an arc structure to form a first arc-shaped slot.

[0024] The support body is fixedly connected to the first arc-shaped groove, and the cross section of the support body along the extension direction perpendicular to the connecting pipe is an arc-shaped structure to form a second arc-shaped groove.

[0025] The support pad is embedded in the bottom wall of the second arc-shaped groove and is fixedly connected to the support body.

[0026] In one possible implementation, the handle assembly includes:

[0027] The handle is L-shaped and one end of the handle is slidably inserted into the connecting tube.

[0028] The handle body is connected to the other end of the handle rod;

[0029] Fasteners are connected to the connecting pipe and the handle rod, and are used to fix the handle rod, which has been adjusted to a predetermined position, to the connecting pipe.

[0030] In one embodiment, the armrest structure further includes a brake assembly, the operating end of which is integrated on the handlebar and adjacent to the handle body.

[0031] This disclosure provides the following technical solution: a walking aid trolley, the walking aid trolley including the above-mentioned arm support structure.

[0032] In the aforementioned armrest structure, the connecting tube is first fixed to one end of the support member, and then the support assembly is installed onto the connecting tube. By adjusting the length of the handle assembly extending out of the connecting tube, it can accommodate users of different body shapes, thereby meeting the needs of different users. At the same time, by rotating the outward-expanding support assembly, the support assembly can be moved away from the seat space of the walking aid, thereby improving user comfort. In this way, by fixing one end of the connecting tube to the support member, the strength and load-bearing capacity of the entire support frame are improved. By setting the handle assembly as a telescopic structure, it is possible to meet the needs of users of different body shapes. At the same time, by rotating the support assembly outward, it is possible to increase the seat space of the walking aid. Thus, user comfort is improved while meeting the needs of different users and improving the load-bearing capacity of the armrest structure.

[0033] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0034] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which:

[0035] In the drawings, the same or similar notations represent the same or similar parts.

[0036] Figure 1 A structural schematic diagram of an arm support structure in the embodiment of the present disclosure is shown;

[0037] Figure 2 A structural schematic diagram of Figure 1 A structural schematic diagram of a first fixing member, a second fixing member, a limiting member and a support seat in the embodiment of the present disclosure is shown;

[0038] Figure 3 A structural schematic diagram of Figure 1 An exploded structural schematic diagram of a support seat in the embodiment of the present disclosure is shown;

[0039] Figure 4 An exploded structural schematic diagram of a support frame, a handle assembly and a brake assembly in the embodiment of the present disclosure is shown. Figure 1

[0040] Explanation of reference numerals in the drawings:

[0041] In the drawings: 11, support frame; 111, support member; 112, connecting pipe; 12, handle assembly; 121, handle rod; 122, handle body; 123, fastener; 124, locking hole; 125, limiting hole; 126, sealing pipe; 13, support seat assembly; 131, support seat; 1311, support seat framework; 1312, support seat body; 1313, support seat pad; 1314, first arc-shaped slot; 1315, second arc-shaped slot; 132, fixing assembly; 1321, first fixing member; 13211, first buckle; 13212, second buckle; 13213, first locking member; 13214, first clamping slot; 13215, second clamping slot; 1322, second fixing member; 13221, fixing body; 13222, through hole; 13223, second locking member; 13224, threaded hole; 13225, abutting member; 13226, guide hole; 133, limiting member; 1331, elastic member; 1332, limiting column; 14, brake assembly; 141, brake handle; 142, brake box; 143, brake wire. DETAILED DESCRIPTION

[0042] In order to make the objectives, features and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present disclosure.

[0043] ​It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, the steps described in the present disclosure can be performed in parallel, sequentially or in a different order, as long as the desired results of the technical solutions of the present disclosure can be achieved, which is not limited herein.

[0044] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0045] The embodiments of the utility model are explained below in combination with the drawings.

[0046] Please refer to Figure 1 The arm support structure provided by the present disclosure includes a support frame 11, a handle assembly 12 and a support seat assembly 13. The support frame 11 includes a support piece 111 and a connecting pipe 112. One end of the support piece 111 is fixedly connected to the connecting pipe 112. The support piece 111 is a support rod. Specifically, the support piece 111 and the connecting pipe 112 are fixed by welding. An included angle is formed between the support piece 111 and the connecting pipe 112. Specifically, the connecting pipe 112 is horizontally arranged, and the support piece 111 is arranged obliquely. The handle assembly 12 is telescopically connected to one end of the connecting pipe 112. The support seat assembly 13 is rotatably connected to the connecting pipe 112, so as to adjust the angle of the support seat assembly 13, and switch the support seat assembly 13 between a first position and a second position. The first position is the initial position of the support seat assembly 13. The second position is the expanded position of the support seat assembly 13. When the support seat assembly is in the initial position, the user can support the arm through the support seat assembly. When the support seat assembly is in the expanded position, the position of the support seat assembly is adjusted and leaves the seat space of the walking aid cart, so that the walking aid cart has a larger seat space.

[0047] The arm support structure is fixed to one end of the support member 111, and then the bracket assembly 13 is installed on the connecting pipe 112, and the length of the connecting pipe 112 is adjusted by the adjusting handle assembly 12 to adapt to users of different body shapes, specifically users with different arm lengths, so as to meet the needs of different users, and at the same time, the bracket assembly 13 is expanded outward by rotating to make the bracket assembly 13 away from the seat space of the walker, thereby improving the comfort of the user. In this way, the one end of the connecting pipe 112 is fixedly connected with the support member 111 to improve the strength and carrying capacity of the entire support frame 11, and the handle assembly 12 is arranged in a telescopic structure to meet the needs of users of different body shapes, and at the same time, the bracket assembly 13 is expanded outward by rotating to improve the seat space of the walker, thereby realizing the improvement of the comfort of the user on the basis of meeting the needs of different users and improving the carrying capacity of the arm support structure.

[0048] Please refer to Figure 2 In some embodiments, the bracket assembly 13 includes a bracket 131, a fixing assembly 132, and a limiting member 133. The bracket 131 is arranged at the other end of the connecting pipe 112, the fixing assembly 132 is connected to the bracket 131 and is telescopically arranged on the connecting pipe 112, the fixing assembly 132 is provided with a guide hole 13226, and the limiting member 133 is received in the connecting pipe 112, and one end of the limiting member 133 extends into the guide hole 13226 through the pipe wall of the connecting pipe 112 to guide the rotation of the fixing assembly 132 around the connecting pipe 112, thereby adjusting the angle of the bracket 131 and the fixing assembly 132.

[0049] In this way, when the bracket assembly 13 is expanded outward, the bracket 131 is moved by an external force to drive the fixing assembly 132 to rotate around the connecting pipe 112 under the guidance of the guide hole 13226 and the limiting member 133, thereby realizing stable adjustment of the angle of the bracket assembly 13, and the adjustment is fast and the operation is quick.

[0050] It can be understood that for users with a larger body size, when sitting on the walker, part of the bracket 131 is arranged in the seat space of the walker, so that the bracket 131 will press against the user's body, thereby interfering with the user's range of motion. Therefore, the bracket assembly 13 is adjusted from the initial position to the expanded position by adjusting the angle of the fixing assembly 132 and the bracket 131 to expand the bracket 131 and increase the seat space, thereby improving the comfort of the user.

[0051] Please refer to Figure 2In some embodiments, the guide hole 13226 is two oppositely arranged L-shaped slot holes, one part of each L-shaped slot hole extends along the axial direction of the connecting pipe 112, the other part of each L-shaped slot hole extends along the circumferential direction of the connecting pipe 112, when the end of each limiting member 133 extends into the one part of the L-shaped slot hole, it is used to guide the movement of the fixing assembly 132 along the axial direction of the connecting pipe 112, when the end of each limiting member 133 extends into the other part of the L-shaped slot hole, it is used to guide the rotation of the fixing assembly 132 around the connecting pipe 112.

[0052] In this way, the bracket 131 and the fixing assembly 132 are limited in the initial position and the expanded position by the L-shaped slot hole and the limiting member 133, so as to facilitate the quick adjustment of the bracket assembly 13 from the initial position to the expanded position, or from the expanded position to the initial position, thereby improving the convenience of operation, wherein when the bracket assembly 13 is in the initial position, the limiting member 133 is located at the end of the other part of the L-shaped slot hole, so as to facilitate the user's arm when practicing walking with the walker, when the bracket assembly 13 is in the expanded position, the limiting member 133 is located in the one part of the L-shaped slot hole, at this time, the bracket assembly 13 is expanded, so as to facilitate the user to ride the walker when tired, and has a larger seat space and better comfort.

[0053] Please refer to Figure 2 In some embodiments, the limiting member 133 comprises a resilient member 1331 and two limiting columns 1332, the two limiting columns 1332 are fixedly connected to the two ends of the resilient member 1331, each limiting column 1332 extends into the corresponding one L-shaped slot hole after penetrating the pipe wall of the connecting pipe 112, the limiting column 1332 is slidingly connected to the L-shaped slot hole, the elastic force released by the resilient member 1331 is used to drive the limiting column 1332 to extend into the L-shaped slot hole after penetrating the connecting pipe 112, when each limiting column 1332 extends into the one part of the L-shaped slot hole, it is used to guide the fixing assembly 132 to move only along the axial direction of the connecting pipe 112, when each limiting column 1332 extends into the other part of the L-shaped slot hole, it is used to guide the fixing assembly 132 to rotate only around the connecting pipe 112. For example, the resilient member 1331 can be a V-shaped spring piece.

[0054] In this way, the elastic force released by the resilient member 1331 is used to drive each limiting column 1332 to always extend into the corresponding one L-shaped slot hole, so that the limiting column 1332 can cooperate with the L-shaped slot hole and guide the movement of the fixing assembly 132 and the bracket 131 along the L-shaped slot hole, so as to facilitate the quick reset of the bracket assembly 13 and the quick shifting to the expanded state, thereby improving the convenience of operation, and at the same time, the limiting member 133 has a simple structure and is easy to process and disassemble.

[0055] Please refer to Figure 1In some embodiments, the fixing assembly 132 includes a first fixing member 1321 and a second fixing member 1322. The first fixing member 1321 is movably sleeved on the connecting pipe 112 and detachably connected to the holder 131, and is used for fixing one end of the holder 131 to the connecting pipe 112. The second fixing member 1322 is movably sleeved on the connecting pipe 112 and detachably connected to the holder 131, and is used for fixing the other end of the holder 131 to the connecting pipe 112. Two L-shaped slots are formed on opposite sides of the second fixing member 1322, and one end of the support member 111 is located between the first fixing member 1321 and the second fixing member 1322.

[0056] In this way, by arranging the first fixing member 1321 and the second fixing member 1322 on the connecting pipe 112 at intervals, and by locating one end of the support member 111 between the first fixing member 1321 and the second fixing member 1322, when the user's arm is placed on the holder 131, the user's gravity is evenly transmitted to the front and rear parts of the connecting pipe 112, and the pressure borne by the connection between the support member 111 and the connecting pipe 112 in the front-rear direction is more uniform, thereby achieving a stable supporting effect, so as to further improve the carrying capacity of the arm support structure. Meanwhile, the first fixing member 1321 and the second fixing member 1322 are detachably connected to the holder 131, so as to realize the disassembly and assembly of the holder 131.

[0057] Further, the first fixing member 1321 and the connecting pipe 112 have a friction force, so that when the first fixing member 1321 is rotated to a predetermined position, it can be fixed to the connecting pipe 112 by the friction force. The second fixing member 1322 and the connecting pipe 112 have a friction force, so that when the second fixing member 1322 is rotated to a predetermined position, it can be fixed to the connecting pipe 112 by the friction force.

[0058] In this embodiment, the structures of the first fixing member 1321 and the second fixing member 1322 can be the same or different.

[0059] Please refer to Figure 2In some embodiments, the first fixing member 1321 comprises a first clamping member 13211, a first clamping member 13211 and a first locking member 13213. The first clamping member 13211 is connected to one side of the holder 131 towards the connecting pipe 112. Specifically, the first clamping member 13211 is fixedly connected to the holder 131 by welding or adhesion, or the first clamping member 13211 and the holder 131 are integrated and have a first clamping groove 13214 for clamping one side of the connecting pipe 112. The first clamping member 13211 has a second clamping groove 13215 for clamping the other side of the connecting pipe 112. The first locking member 13213 is screwed into the holder 131 through the first clamping member 13211 to lock the first clamping member 13211 to the holder 131. When the first locking member 13213 locks the first clamping member 13211 to the holder 131, the connecting pipe 112 is clamped in the first clamping groove 13214 of the first clamping member 13211 and the second clamping groove 13215 of the first clamping member 13211. The first locking member 13213 can be a screw.

[0060] In this way, the connecting pipe 112 is clamped in the first clamping groove 13214 and the second clamping groove 13215, and then the first locking member 13213 is screwed into the holder 131 through the first clamping member 13211 to clamp and fix the connecting pipe 112 by the walls of the first clamping groove 13214 and the second clamping groove 13215. Moreover, the first fixing member 1321 has a simple structure and is easy and fast to operate.

[0061] Please refer to Figure 2 In some embodiments, the second fixing member 1322 further comprises a fixing body 13221 and a second locking member 13223. The fixing body 13221 is provided with a through hole 13222, and the connecting pipe 112 passes through the fixing body 13221 along the through hole 13222. Two L-shaped slot holes are formed on opposite sides of the fixing body 13221. The second locking member 13223 is screwed into the holder 13 through the fixing body 13221 to lock the fixing body 13221 to the holder 13. The second locking member 13223 can be a screw.

[0062] In this way, the second fixing member 1322 and the first fixing member 1321 are actuated by an external force to overcome the friction between them and the connecting pipe 112 and rotate around the connecting pipe 112 to adjust the position of the fixing body 13221 relative to the connecting pipe 112. Then the second locking member 13223 is aligned with the threaded hole 13224 on the second fixing member 1322 and screwed to the end of the second locking member 13223 against the connecting pipe 112 to lock the second fixing member 1332 to the connecting pipe 112, thereby further improving the firmness between the second fixing member 1332 and the connecting pipe 112.

[0063] It can be understood that the friction between the first fixing member 1321 and the connecting pipe 112 and the friction between the second fixing member 1322 and the connecting pipe 112 are generally limited, and the fixing assembly 132 can still rotate around the connecting pipe 112 when a larger external force is applied. Therefore, after the second locking member 13223 abuts against the connecting pipe 112, the firmness between the connecting pipe 112 and the fixing assembly 132 can be improved.

[0064] Referring to Figure 2 In some embodiments, the second fixing member 1322 is further provided with a threaded hole 13224 which is in communication with the inside and outside of the through hole 13222. The second fixing member 1322 further includes a threaded hole 13224 which is threadedly connected to the threaded hole 13224 and used for abutting against the inner wall of the connecting pipe 112. For example, the threaded hole 13224 can be a bolt.

[0065] In this way, by rotating the threaded hole 13224, the threaded thrust between the threaded hole 13224 and the second fixing member 1322 causes one end of the threaded hole 13224 to abut against the connecting pipe 112, so as to lock the second fixing member 1322 which is preliminarily fixed to the connecting pipe 112, thereby improving the firmness between the connecting pipe 112 and the second fixing member 1322.

[0066] Referring to Figure 3 In some embodiments, the bracket 131 includes a bracket framework 1311, a bracket body 1312 and a bracket pad 1313. The bracket framework 1311 is fixed to the other end of the connecting pipe 112 by the fixing assembly 132. The bracket framework 1311 has an arc-shaped structure along the cross section perpendicular to the extension direction of the connecting pipe 112, so as to form a first arc-shaped groove 1314. The bracket body 1312 is fixedly connected in the first arc-shaped groove 1314 and has an arc-shaped structure along the cross section perpendicular to the extension direction of the connecting pipe 112, so as to form a second arc-shaped groove 1315. Specifically, the bracket body 1312 and the bracket framework 1311 are fixed by adhesion. The bracket pad 1313 is embedded in the bottom wall of the second arc-shaped groove 1315 and fixedly connected with the bracket body 1312. Specifically, the bracket pad 1313 and the bracket body 1312 are fixed by adhesion.

[0067] In this way, the bracket 131 is arranged in an arc-shaped structure, so as to better support the user's arm, thereby improving the user experience.

[0068] In this embodiment, the hardness of the holder framework 1311 is greater than that of the holder body 1312, and the hardness of the holder body 1312 is greater than that of the holder pad 1313. For example, the holder pad 1313 is made of plastic material, the holder body 1312 is made of soft plastic, and the holder framework 1311 is made of hard plastic or metal, so as to improve the comfort of the user on the basis of ensuring the strength of the holder 131.

[0069] Referring to Figure 4 In some embodiments, the handle assembly 12 comprises a handle rod 121, a handle body 122, and a fastener 123. The handle rod 121 is in an L-shaped structure, and one end of the handle rod 121 is slidably inserted into the connecting pipe 112. The handle body 122 is connected to the other end of the handle rod 121, and is made of plastic material and sleeved on the other end of the handle rod 121. The fastener 123 is connected to the connecting pipe 112 and the handle rod 121, and is used to fix the handle rod 121 adjusted to a predetermined position on the connecting pipe 112.

[0070] In this way, the handle rod 121 is first slid along the connecting pipe 112 to a predetermined position, and then the handle rod 121 is fixed to the connecting pipe 112 by the fastener 123, so as to realize the telescopic adjustment of the handle assembly 12, so that the handle assembly 12 is suitable for users with different body shapes, such as users with different lengths of arms, and the telescopic adjustment of the handle assembly 12 is convenient and fast.

[0071] Referring to Figure 4 In some embodiments, the handle assembly 12 further comprises a sealing pipe 126 sleeved on the connecting pipe 112 and the handle rod 121, so as to seal the ports of the handle rod 121 and the connecting pipe 112.

[0072] In some embodiments, one end of the handle rod 121 is provided with a plurality of locking holes 124 uniformly arranged, and one end of the connecting pipe 112 is further provided with two limiting holes 125 arranged opposite to each other. The fastener 123 passes through the two limiting holes 125 and a corresponding locking hole 124, so as to fix the handle rod 121 adjusted to a predetermined position on the connecting pipe 112. For example, the fastener 123 can be a locking pin, or a bolt provided with a nut.

[0073] In this way, the handle rod 121 is fixed by passing the fastener 123 through the two limiting holes 125 and a corresponding locking hole 124, and locking the other end of the fastener 123 by the nut, so as to realize the fixation of the handle rod 121, which is simple in structure and fast in adjustment.

[0074] Referring to Figure 4In some embodiments, the armrest structure further comprises a brake assembly 14, an operating end of the brake assembly 14 is integrated on the handle bar 121 and is adjacent to the handle body 122, so that when a user holds the handle body 122, the brake assembly 14 is pulled and the brake is activated.

[0075] Further, the brake assembly 14 comprises a brake handle 141, a brake box 142 and a brake wire 143, the brake handle 141 is rotatably connected to the brake box 142, the brake box 142 is connected to the handle bar 121 at a position adjacent to the handle body 122, one end of the brake wire 143 is connected to the brake box 142 and the brake handle 141, and the other end of the brake wire 143 is connected to the main body of the walker and is used to brake the walking wheels of the main body of the walker.

[0076] The embodiments of the present disclosure further provide a walker, the walker comprises the armrest structure described above, and the number of the armrest structures is two, the walker further comprises a main body of the walker, the main body of the walker is provided with a seat, and the two armrest assemblies are arranged on opposite sides of the seat.

[0077] The above merely describes the specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, and all the changes or replacements should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An arm support structure, characterized by, include: The support frame (11) includes a support member (111) and a connecting pipe (112), one end of the support member (111) being fixedly connected to the connecting pipe (112); A handle assembly (12) is retractably connected to one end of the connecting tube (112); A support assembly (13) is rotatably connected to the connecting tube (112) for adjusting the angle of the support assembly (13) to switch the support assembly (13) between a first position and a second position; wherein, The first position is the initial position of the support assembly (13), and the second position is the outward expansion position of the support assembly (13).

2. The arm rest structure according to claim 1, characterized by The support assembly (13) includes: Support (131), the support (131) is located at the other end of the connecting pipe (112); A fixing component (132) is connected to the support (131) and rotatably sleeved on the connecting tube (112). The fixing component (132) is provided with a guide hole (13226). A limiting member (133) is housed inside the connecting tube (112). One end of the limiting member (133) passes through the wall of the connecting tube (112) and extends into the guide hole (13226) to guide the fixing assembly (132) to rotate around the connecting tube (112).

3. The arm rest structure according to claim 2, wherein The guide hole (13226) is two L-shaped slots arranged opposite each other. A portion of each L-shaped slot extends along the axial direction of the connecting pipe (112), and another portion of each L-shaped slot extends along the circumferential direction of the connecting pipe (112). When the end of each of the limiting members (133) extends into a portion of the L-shaped slot, it guides the fixing assembly (132) to move in the axial direction of the connecting tube (112), and when the end of each of the limiting members (133) extends into another portion of the L-shaped slot, it guides the fixing assembly (132) to rotate about the connecting tube (112).

4. The arm support structure of claim 3, wherein, The fixing component (132) includes: The first fastener (1321) is movably sleeved on the connecting pipe (112) and detachably connected to the bracket (131), and is used to fix one end of the bracket (131) to the connecting pipe (112); The second fastener (1322) is movably sleeved on the connecting pipe (112) and detachably connected to the bracket (131), and is used to fix the other end of the bracket (131) to the connecting pipe (112). The two L-shaped slots are opened on opposite sides of the second fastener (1322).

5. The arm support structure of claim 4, wherein, The second fastener (1322) includes: The fixed body (13221) is provided with a through hole (13222), and the connecting pipe (112) passes through the through hole (13222) and is inserted into the fixed body (13221). The two L-shaped slots are opened on opposite sides of the fixed body (13221). A second locking member (13223) is screwed through the fixing body (13221) to the holder (131) to lock the fixing body (13221) to the holder (131).

6. The arm support structure according to claim 5, characterized in that, The fixing body (13221) is further provided with a threaded hole (13224) which is in communication with the inside and outside of the through hole (13222), and the second fixing member (1322) further comprises a pressing member (13225) which is screwed to the threaded hole (13224) and is used to press against the inner wall of the connecting pipe (112).

7. The arm rest structure of claim 2, wherein The holder (131) comprises: A holder skeleton (1311) is fixed to the other end of the connecting pipe (112) by the fixing assembly (132), and the cross section of the holder skeleton (1311) along the extension direction of the connecting pipe (112) is arc-shaped to form a first arc-shaped groove (1314); A holder body (1312) is fixedly connected in the first arc-shaped groove (1314), and the cross section of the holder body (1312) along the extension direction of the connecting pipe (112) is arc-shaped to form a second arc-shaped groove (1315); A holder pad (1313) is embedded in the bottom wall of the second arc-shaped groove (1315) and is fixedly connected with the holder body (1312).

8. The arm rest structure of claim 7, wherein, The handle assembly (12) comprises: A handle rod (121) which is L-shaped, one end of the handle rod (121) is slidably inserted into the connecting pipe (112), and the other end of the handle rod (121) is connected with the handle body (122); A handle body (122) is connected to the other end of the handle rod (121); A fastener (123) is connected to the connecting pipe (112) and the handle rod (121) and is used to fix the handle rod (121) which is adjusted to a predetermined position to the connecting pipe (112).

9. The arm support structure according to claim 8, characterized in that, The arm support structure further comprises a brake assembly (14), and the operating end of the brake assembly (14) is integrated on the handle rod (121) and is adjacent to the handle body (122).

10. A walking trolley characterised by, The walking cart comprises the arm support structure according to any one of claims 1-9.

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