Foldable frame and walking aid equipment

Abstract

The utility model discloses a foldable frame and walking aid equipment, the foldable frame comprises a bendable main rod connecting rod, a linkage rod, two main rods and a wheel connecting rod, and the two main rods and the wheel connecting rod are oppositely arranged; each main rod is provided with a first connecting part and a second connecting part; the first connecting part is used for being rotationally connected with a frame connecting rod, and the main rod connecting rod is located between the two main rods; the second connecting part is used for being connected with one end of the linkage rod, and the other end of the linkage rod is connected with the main rod connecting rod; the second connecting part is further used for being connected with a wheel connecting rod; when the main rod connecting rod is bent, the linkage rod moves along with the main rod connecting rod, and the main rod connecting rod and the linkage rod simultaneously drive the two main rods and the two wheel connecting rods which are oppositely arranged to get close to each other. And through a linkage mechanism of multiple groups of connecting rods, the folding steps of the rollator are simplified, the folding efficiency is improved, and the rollator is rapidly folded at a time.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of walking aids, and particularly relates to a foldable frame and a walking aid. BACKGROUND

[0002] A walking aid is an appliance that assists the human body in supporting body weight, maintaining balance and walking. In simple terms, it is to share the pressure of the legs, so that people with difficulty in walking can also travel freely.

[0003] A walking aid is usually a four-wheeled walking aid, and front wheels and rear wheels are arranged on two oppositely arranged main rods. Most of the existing walking aids have the functions of automatic or manual opening and folding, and the folding or unfolding operation is relatively troublesome and time-consuming, which cannot meet the needs of people. CONTENT OF THE INVENTION

[0004] In view of the above problems, the purpose of the application is to provide a foldable frame and a walking aid, which simplifies the folding steps of the walking aid, improves the folding efficiency, and realizes one-time rapid folding of the walking aid through a linkage mechanism of multiple connecting rods.

[0005] According to an aspect of an embodiment of the application, a foldable frame is provided, which comprises a bendable main rod connecting rod, a linkage rod, and two oppositely arranged main rods and a wheel connecting rod; each main rod is provided with a first connecting part and a second connecting part; the first connecting part is used for rotationally connecting with the frame connecting rod, and the main rod connecting rod is located between the two main rods; the second connecting part is used for connecting with one end of the linkage rod, and the other end of the linkage rod is connected with the main rod connecting rod; the second connecting part is also used for connecting with the wheel connecting rod; when the main rod connecting rod is bent, the linkage rod moves with the main rod connecting rod, and the main rod connecting rod and the linkage rod simultaneously drive the two oppositely arranged main rods and the wheel connecting rod to move close to each other.

[0006] Optionally, the main rod connecting rod comprises a first main rod connecting rod, a second main rod connecting rod and a buckling piece, the first main rod connecting rod and the second main rod connecting rod are connected through the buckling piece; when folding, the buckling piece moves upward, the first main rod connecting rod and the second main rod connecting rod bend downward, and the ends of the first main rod connecting rod and the second main rod connecting rod away from the buckling piece move close to each other.

[0007] Optionally, the wheel connecting rod comprises a first wheel connecting rod and a second wheel connecting rod; the first wheel connecting rod and the second wheel connecting rod are connected through the second connecting part; the first wheel connecting rod and the second wheel connecting rod are both rotationally connected with the second connecting part; when folding, the second connecting part moves downward with the rotation of the linkage rod, and the ends of the first wheel connecting rod and the second wheel connecting rod away from the second connecting part move close to each other.

[0008] Optionally, the second connecting part is located at the end of the frame, and the second connecting part comprises a first accommodating groove and two second accommodating grooves arranged oppositely; the first accommodating groove is used for accommodating the linkage rod, and the second accommodating groove is used for accommodating the first wheel connecting rod and the second wheel connecting rod.

[0009] Optionally, the foldable frame further comprises a wheel moving rod connected to a third connecting part of the frame; the wheel connecting rod is connected to the wheel moving rod; when folding, the third connecting part moves upward along the frame, and the end of the wheel connecting rod away from the third connecting part moves toward the frame.

[0010] Optionally, when the foldable frame is unfolded, the wheel moving rod and the wheel connecting rod form an isosceles triangle.

[0011] Optionally, the foldable walker further comprises an auxiliary support rod, one end of the auxiliary support rod is connected to the linkage rod, and the other end of the auxiliary support rod is connected to the frame.

[0012] Optionally, the foldable walker further comprises an auxiliary support rod, one end of the auxiliary support rod is connected to the frame connecting rod, and the other end of the auxiliary support rod is connected to the frame.

[0013] Optionally, the linkage rod is two folding rods arranged in an "X" shape and intersecting with each other, and the two folding rods are connected to the front side and the rear side of the frame connecting rod, respectively.

[0014] According to an aspect of the embodiment of the present application, a walker is provided, comprising the foldable frame of any one of the above.

[0015] The present application has the beneficial effect of solving the problem of complicated operation of the existing walker when folding or unfolding, so as to meet the demand of users for convenience and practicality and enable the walker to be folded at one time. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 The structure schematic diagram of the foldable frame provided by the embodiment of the present application is shown in the figure.

[0018] Figure 2 The structure schematic diagram of the main rod provided by the embodiment of the present application is shown in the figure.

[0019] Figure 3 The structure schematic diagram of the main rod connecting rod provided by the embodiment of the present application is shown in the figure.

[0020] Figure 4 Another structural schematic view of the foldable frame provided by an embodiment of the present application is shown in FIG. 3.

[0021] Figure 5 A structural schematic view of the foldable frame provided by another embodiment of the present application is shown in FIG. 4.

[0022] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are merely intended to show the schematic views.

[0023] The reference signs in the detailed description are as follows:

[0024] 100, foldable frame; 110, main rod; 111, first connecting part; 112, second connecting part; 1121, first accommodating groove; 1122, second accommodating groove; 113, third connecting part; 120, frame connecting rod; 121, first main rod connecting rod; 122, second main rod connecting rod; 123, buckling member; 130, linkage rod; 131, folding rod; 140, wheel connecting rod; 141, first wheel connecting rod; 142, second wheel connecting rod; 150, wheel moving rod; 160, auxiliary support rod; 170, front wheel; 180, rear wheel. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0027] In addition, in addition to indicating the orientation or positional relationship, some of the above terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific circumstances.

[0028] In addition, the terms "mounting", "arrangement", "provided with", "connected", "linked" should be interpreted broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood according to the specific circumstances by those skilled in the art.

[0029] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components, and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "a plurality" is two or more.

[0030] It should also be understood that the terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application and the appended claims, unless otherwise clear from the context, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0031] It should be further understood that the term "and / or" used in the present application and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0032] The existing walking aid usually needs the user to perform a series of cumbersome steps in the folding process, first close the frames to each other to fold the length of the walking aid, then disassemble the wheels, and finally fold up the seat part. Since the user group of the walking aid is usually the elderly with difficulty in movement or poor physical endurance, such folding method not only consumes time, but also reduces the user's experience.

[0033] To solve this problem, the connecting rod connecting the two side frames and the connecting rod connecting the two side wheels of each frame are interconnected, so that the user can complete multiple folding actions at one time through a simple operation.

[0034] Therefore, as Figures 1 to 4As shown, on the one hand, an embodiment of the present application provides a foldable frame 100, which is applied to a walking aid device, and the frame includes two symmetrically arranged main poles 110, a bendable main pole connecting rod 120, a linkage rod 130 and a wheel connecting rod 140; the main pole 110 includes a first connecting portion 111 and a second connecting portion 112; the first connecting portion 111 is used to connect with the main pole connecting rod 120, and the main pole connecting rod 120 is located between the two main poles 110; the second connecting portion 112 is used to connect with one end of the linkage rod 130, and the other end of the linkage rod 130 is connected to the main pole connecting rod 120; the second connecting portion 112 is also used to connect with the wheel connecting rod 140; when folding, the main pole connecting rod 120 rotates, the linkage rod 130 moves with the main pole connecting rod 120, and the wheel connecting rod 140 rotates with the linkage rod 130.

[0035] like Figure 1 As shown, the two ends of the main rod connecting rod 120 are respectively fixedly connected to the first connecting portion 111 of the main rod 110, and the main rod connecting rod 120 can rotate along its center. When rotating, the two ends of the main rod connecting rod 120 approach each other. When folding, the main rod connecting rod 120 drives the two main rods 110 connected to it to move closer to each other. Since the linkage rod 130 is respectively connected to the main rod 110 and the main rod connecting rod 120, the linkage rod 130 also rotates accordingly. Since the linkage rod 130 and the wheel connecting rod 140 are both connected to the second connecting portion 112 of the main rod 110, when the linkage rod 130 rotates, it will drive the wheel connecting rod 140 connected to the second connecting portion 112 to rotate, and the two wheels on both sides of each main rod 110 will flip upward along with the wheel connecting rod 140.

[0036] The foldable frame 100 of the present embodiment utilizes a rotatable main rod connecting rod 120 to achieve folding in the length direction of the rollator. The wheel connecting rods 140 enable the wheels to flip upward, allowing the rollator to fold in the height direction. A linkage rod 130 is connected to the main rod connecting rod 120 at one end, and indirectly connected to the wheel connecting rod 140 at the other end. When the user folds the rollator, a simple movement simultaneously triggers the folding of both the main rod 110 and the wheels. Specifically, the user's folding action on the main rod 110 transmits force to the wheel connecting rod 140 via the linkage rod 130. The wheel connecting rod 140 responds to this action, causing the wheels to flip upward. This not only makes folding quick and easy, but also significantly reduces the space required, allowing the rollator to be easily stored in small spaces at home when not in use.

[0037] The main rod connecting rod 120 is designed to be rotatable. In the embodiment of the present application, Figure 3As shown, the main rod connecting rod 120 includes a first main rod connecting rod 121, a second main rod connecting rod 122, and a fastening member 123. The first main rod connecting rod 121 and the second main rod connecting rod 122 are connected by the fastening member 123. When folding, the fastening member 123 moves upward, and the ends of the first main rod connecting rod 121 and the second main rod connecting rod 122 away from the fastening member 123 approach each other.

[0038] The main rod connecting rod 120 is designed in a two-section form. A fastening member 123 that allows them to rotate relative to each other is provided at the connection between the first main rod connecting rod 121 and the second main rod connecting rod 122. The fastening member 123 can be a sliding shaft, a ball socket joint, a rolling bearing, a universal joint, etc.

[0039] In the embodiment of the present application, considering that when folding, the main rod connecting rod 120 only needs to rotate in one direction. For example, in the present application, when the fastening member 123 is lifted upward, the main rod connecting rod 120 rotates downward, and the folding of the main rods 110 and the storage of the wheels can be achieved. Of course, in other embodiments, the folding of the walking aid device can also be opened by pressing down the fastening member. Since the main rod connecting rod 120 does not need to rotate freely in multiple directions, the first main rod connecting rod 121 and the second main rod connecting rod 122 of the present application adopt a hinged fastening member 123. The first main rod connecting rod 121 and the second main rod connecting rod 122 connected by the hinge not only can rotate relative to the fastening member 123 on the fixed axis, but also are relatively small and simple in structure compared with the universal joint or ball socket joint, and are easy to maintain.

[0040] As Figure 4 shown, when the foldable frame 100 is unfolded, the first main rod connecting rod 121 and the second main rod connecting rod 122 are in a "one" shape. When the foldable frame 100 is folded, the user can grasp the fastening member 123 and move it upward along the arrow direction in the figure. At this time, the first main rod connecting rod 121 and the second main rod connecting rod 122 rotate as the fastening member 123 moves upward, forming an "eight" shape and gradually forming a "vertical" shape, so that the two relatively arranged main rods 110 approach and abut against each other.

[0041] The linkage rod 130 is two folding rods 131 that are arranged crosswise in an "X" shape. The two folding rods 131 are respectively connected to the first main rod connecting rod 121 and the second main rod connecting rod 122. During the process of the first main rod connecting rod 121 and the second main rod connecting rod 122 changing from a "one" shape to a "vertical" shape, the two folding rods 131 approach each other towards their intersection point and are folded from an "X" shape into a "vertical" shape.

[0042] The foldable frame 100 of the embodiment of the present application is a four-wheel structure, that is, two front wheels 170 for controlling the direction and two rear wheels 180 for braking, as Figure 1 and Figure 4As shown in the drawings, each main rod 110 is provided with a front wheel 170 and a rear wheel 180 on both sides, respectively, and is connected to the main rod 110 through a wheel connecting rod 140.

[0043] The wheel connecting rod 140 includes a first wheel connecting rod 141 and a second wheel connecting rod 142; the first wheel connecting rod 141 and the second wheel connecting rod 142 are connected through a second connecting portion 112; when folding, the second connecting portion 112 moves downward with the rotation of the linkage rod 130, and the ends of the first wheel connecting rod 141 and the second wheel connecting rod 142 away from the second connecting portion 112 approach each other.

[0044] Figure 2 As shown in the structural schematic diagram of the main rod 110 provided by the embodiment of the application, Figure 1 , Figure 2 and Figure 4 As shown in the drawings, the front wheel 170 and the rear wheel 180 are connected to the two sides of the main rod 110 through the first wheel connecting rod 141 and the second wheel connecting rod 142, respectively, and the first wheel connecting rod 141 and the second wheel connecting rod 142 are arranged in a "I" shape when the frame 110 is unfolded.

[0045] When the foldable frame 110 is folded, the aforementioned intersecting linkage rods 130 approach each other along the intersection points, and with the inward folding of the linkage rods 130, the second connecting portion 112 connected to the linkage rods 130 moves downward, and the first wheel connecting rod 141 and the second wheel connecting rod 142 connected to the second connecting portion 112 rotate upward with the downward movement of the second connecting portion 112, gradually approaching a "V" shape from a "I" shape, thereby driving the front wheel 170 connected to the first wheel connecting rod 141 and the rear wheel 180 connected to the second wheel connecting rod 142 to rise upward, and the upward rotation of the front wheel 170 and the rear wheel 180 realizes the reduction of the overall height of the scooter, facilitating storage and transportation. When it is necessary to unfold and use the scooter, the two main rods 110 are unlocked and moved away from each other, causing the linkage rods 130 to unfold outward, and the second connecting portion 112 moves upward with the unfolding of the linkage rods 130, and the wheel connecting rod 140 rotates downward, and the wheels descend to the use position, i.e., contact with the ground.

[0046] It should be noted that the wheel connecting rod 140 shown in the drawings of the present application is in a "I" shape when the foldable frame is unfolded, which is only an exemplary structure of the present application. When the foldable frame is completely unfolded, the first wheel connecting rod 141 and the second wheel connecting rod 143 can be in any shape that can connect the front wheel 170 and the rear wheel 180 and support the front wheel 170 and the rear wheel 180 to contact the ground, such as an "eight" or a "V" shape, to provide greater grip and stability. Specifically, the shape of the frame connecting rod 140 can be adjusted according to the distance between the wheels and the distance between the main rods, i.e., the overall length and width dimensions of the scooter.

[0047] The foldable frame 100 provided by the embodiments of the present application not only realizes folding in the length direction, but also realizes folding in the height direction, so that the whole structure is more compact and folding is more convenient.

[0048] Further, please refer to Figure 1 and 2 , the second connecting part 112 is located at the end of the main rod 110, and the second connecting part 112 comprises a first accommodating groove 1121 and two oppositely arranged first accommodating grooves 1122; the first accommodating groove 1121 is used for accommodating the linkage rod 130, and the first accommodating grooves 1122 are used for accommodating the first wheel connecting rod 141 and the second wheel connecting rod 142.

[0049] The linkage rod 130 is arranged in the first accommodating groove 1121, so that the linkage rod 130 can push the second connecting part 112 to move when the linkage rod 130 moves. The first wheel connecting rod 141 and the second wheel connecting rod 142 are arranged in the two first accommodating grooves 1122, as shown in Figure 2 , the first accommodating groove 1122 is composed of two communicating openings, one opening upward and one opening left / right, so that the wheel connecting rod 140 can rotate in the two directions in the first accommodating groove 1122.

[0050] After folding is completed, the first wheel connecting rod 141 and the second wheel connecting rod 142 are perpendicular to the ground, parallel to the main rod 110 and abut, at this time, the first wheel connecting rod 141 and the second wheel connecting rod 142 are completely accommodated in the first accommodating groove 1122. The overall height and length of the walking aid are minimized.

[0051] The above mentioned folding and accommodating of the overall height and length of the walking aid to which the foldable frame 100 is applied, in order to further ensure the accommodating size and effect of the walking aid, the width of the walking aid also needs to be considered, that is, the distance between the front wheel 170 and the rear wheel 180 of each main rod 110 needs to be adjusted.

[0052] In the embodiments of the present application, please continue to refer to Figures 1 to 4 , the foldable frame 100 further comprises a wheel moving rod 150, the wheel moving rod 150 is connected to the third connecting part 113 of the main rod 110; the wheel connecting rod 140 is connected to the wheel moving rod 150; during folding, the third connecting part 113 moves upward along the main rod 110, and the end of the wheel connecting rod 140 away from the third connecting part 113 moves towards the main rod 110.

[0053] The third connecting part 113 of the main rod 110 is arranged as a mounting seat which can slide up and down along the main rod 110, and the wheel moving rod 150 is two, which are respectively connected to the front wheel 170 and the rear wheel 180 on both sides of the main rod 110, as shown in Figure 1 and Figure 4As shown, when the walker is unfolded, the wheel moving rods 150 are arranged in a "8" shape in a plane. For the convenience of description, only the wheel moving rods 150 connected with the front wheels 170 are described below.

[0054] One end of the wheel moving rod 150 is connected with the third connecting part 113 of the main rod 110, and the other end is connected with the front wheel 170, and the wheel moving rod 150 is also connected with the wheel connecting rod 140. When folding, the third connecting part 113 slides upward along the main rod 110, so that the wheel connecting rod 140 moves in the direction close to the main rod 110 until it is parallel to the main rod 110 and abuts to complete folding.

[0055] Similarly, the wheel moving rod 150 connected with the rear wheel 180 also moves in the direction close to the main rod 110 when folding, at this time, the distance between the front wheel 170 and the rear wheel 180 is reduced due to the movement of the wheel connecting rod 140, and the adjustment of the overall structure of the walker in the width direction has been achieved.

[0056] When the foldable frame 100 is unfolded, the wheel moving rod 150 and the wheel connecting rod 140 form an isosceles triangle, providing a stable support structure; when in the folded state, the wheel moving rod 150 and the wheel connecting rod 140 are converted into a rhombus, realizing a compact storage form. Specifically, when the second connecting part 112 moves downward to drive the wheel connecting rod 140 to rotate upward, the third connecting part 113 slides upward along the main rod 110, so that the two wheel moving rods 150 connected with the third connecting part 113 move upward and close to each other with the third connecting part 113, to adjust the distance between the two wheels, that is, the width direction of the walker.

[0057] As shown in FIGS. 1 and 2, the foldable frame 100 further comprises a main rod 110, a second connecting part 112, a third connecting part 113, a wheel connecting rod 140, a wheel moving rod 150, a linkage rod 130, a main rod connecting rod 120, and a front wheel 170 and a rear wheel 180. Figure 1 Figure 4 As shown in FIGS. 1 and 2, the foldable frame 100 further comprises a main rod 110, a second connecting part 112, a third connecting part 113, a wheel connecting rod 140, a wheel moving rod 150, a linkage rod 130, a main rod connecting rod 120, and a front wheel 170 and a rear wheel 180.

[0058] The arrangement of the auxiliary support rod 160 can provide additional stability to ensure that when the walker is in the intermediate state of folding or unfolding, due to the cooperation of the main rod connecting rod 120, the wheel connecting rod 140, and the wheel moving rod 150, the walker will not be stable when not locked, and will be inclined or shaken when fully unfolded or fully folded.

[0059] ​In order to achieve the three-way folding of the walking aid, and simplify the structure of the main rod 110, the design needs to use the least number of connecting rods to achieve linkage. However, such a design can cause insufficient force transmission, for example, it can be more laborious to move the main rod 110 by pulling the connecting part of the main rod connecting rod 120. Similarly, the linkage rod 130 is only connected to the main rod 110 through the second connecting part 112, and the linkage rod 130 can not be sufficient to directly push the third connecting part 113 to move upward.

[0060] In view of the above problems, in order to solve how to achieve one-key three-way folding of the walking aid more labor-savingly, an auxiliary support rod 160 is provided, one end of which is connected to the linkage rod 130 and the other end of which is connected to the main rod 110, and rotates with the movement of the linkage rod 130 and the main rod 110, and bears part of the force transmission. In this way, without the need to increase the complex connecting rod mechanism, the effective transmission of force is ensured, the folding of the walking aid is more labor-saving, the linkage is better, the folding steps are simpler and faster, and the folding efficiency of the walking aid is improved.

[0061] According to an optional embodiment of the present application, please refer to Figure 5 , the auxiliary support rod 160 can also be connected to the main rod connecting rod 120 at one end, and the other end of the auxiliary support rod 160 is connected to the main rod 110, and the other end of the auxiliary support rod is located between the first connecting part and the third connecting part. When the user performs one-key folding, that is, when the main rod connecting rod 120 is pulled, the downward rotation force of the first main rod connecting rod 121 and the second main rod connecting rod 122 is transmitted to the main rod 110 through the auxiliary support rod 160, the auxiliary support rod 160 helps to disperse and transmit this force, ensures the stable movement and positioning of the walking aid, and also enhances the stability and safety of the walking aid in different use states.

[0062] According to an optional embodiment of the present application, the linkage rod 130 adopts two folding rods 131 arranged in cross, and the two folding rods 131 have at least one intersection point. In the present application, in order to make the structure of the walking aid simple, small, easy to maintain, and the like, an "X" shape cross arrangement is adopted, which provides good stability when not folded, and can be compactly stored when folded. As shown in Figure 4 or Figure 5 One end of one of the folding rods 131 is connected to the front side of the main rod connecting rod 120, and the other folding rod 131 is connected to the rear side of the main rod connecting rod 120. By connecting the front and rear of the main rod connecting rod 120 through the linkage rod 130, when the main rod connecting rod 120 is lifted, the force is more balanced in the front and rear directions, providing better weight support and distribution, and ensuring the synchronization and coordination of the folding action.

[0063] According to another aspect of the present application, a walking aid is also provided, which includes any of the above foldable frames.

[0064] It should be noted that the walking aid device of the embodiments of the present application includes but is not limited to a walking aid device such as a baby carriage, an old people's carriage and the like, and the number of wheels of the walking aid device is not limited herein.

[0065] For the embodiments of the present application, it should also be noted that the embodiments of the present application and the features in the embodiments can be combined with each other to obtain new embodiments without conflict.

[0066] The above is only the preferred embodiments of the present application, and does not limit the present application in any form, and the protection scope of the present application should be subject to the protection scope of the claims. Although the present application has been disclosed as above with the preferred embodiments, however, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solutions of the present application, and any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, all belong to the scope of the technical solutions of the present application.

Claims

1. A foldable frame, characterized in that, The frame comprises a bendable main rod connecting rod, a linkage rod, and two oppositely arranged main rods and wheel connecting rods; Each of the main rods is provided with a first connecting part and a second connecting part; The first connecting part is used for rotating connection with the frame connecting rod, and the main rod connecting rod is located between the two main rods; The second connecting part is used for connection with one end of the linkage rod, and the other end of the linkage rod is connected with the main rod connecting rod; The second connecting part is also used for connection with the wheel connecting rod; When the main rod connecting rod is bent, the linkage rod moves with the main rod connecting rod, and the main rod connecting rod and the linkage rod simultaneously drive the two oppositely arranged main rods and the wheel connecting rod to move close to each other.

2. The foldable frame of claim 1, wherein, The main rod connecting rod comprises a first main rod connecting rod, a second main rod connecting rod, and a buckling part, and the first main rod connecting rod and the second main rod connecting rod are connected through the buckling part; When folding, the buckling part moves upward, the first main rod connecting rod and the second main rod connecting rod bend downward, and the ends of the first main rod connecting rod and the second main rod connecting rod away from the buckling part move close to each other.

3. The foldable frame of claim 1, wherein, The wheel connecting rod comprises a first wheel connecting rod and a second wheel connecting rod, and the first wheel connecting rod and the second wheel connecting rod are both rotatingly connected with the second connecting part; When folding, the second connecting part moves downward with the rotation of the linkage rod, and the ends of the first wheel connecting rod and the second wheel connecting rod away from the second connecting part move close to each other.

4. The foldable frame of claim 3, wherein, The second connecting part is located at the end of the main rod, and the second connecting part is provided with a first accommodating groove and two oppositely arranged second accommodating grooves; The first accommodating groove is used for accommodating the linkage rod, and the second accommodating grooves are used for respectively accommodating the first wheel connecting rod and the second wheel connecting rod.

5. The foldable frame of any one of claims 1-4, wherein, The foldable frame further comprises a wheel moving rod, and the wheel moving rod is connected to a third connecting part of the main rod; The wheel connecting rod is connected with the wheel moving rod; When folding, the third connecting part moves upward along the main rod, and the end of the wheel connecting rod away from the third connecting part moves toward the direction close to the main rod.

6. The foldable frame of claim 5, wherein, When the foldable frame is unfolded, the wheel moving rod and the wheel connecting rod form an isosceles triangle.

7. The foldable frame of claim 5, wherein, The frame further comprises an auxiliary support rod, one end of the auxiliary support rod is connected with the linkage rod, and the other end of the auxiliary support rod is connected with the frame.

8. The foldable frame of claim 5, wherein, The frame further comprises an auxiliary support rod, one end of the auxiliary support rod is connected with the frame connecting rod, and the other end of the auxiliary support rod is connected with the main rod.

9. The foldable frame of claim 1, wherein, The linkage rod is two folding rods arranged in cross to form an "X" shape, and the two folding rods are respectively connected to the front side and the rear side of the frame connecting rod.

10. A walking aid, characterized in that The walking aid device comprises the frame according to any one of claims 1-9.

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