Frame and wheelchair

Abstract

The application provides a frame and a wheelchair, the frame comprises a first support component and a second support component, the first support component comprises a first support frame and a second support frame, the first support frame is formed with a bearing position, and the first support component further comprises a clamping structure and a locking structure, the clamping structure and the locking structure are arranged on the second support frame, the second support component comprises a clamping matching structure matched with the clamping structure and a locking matching structure matched with the locking structure, wherein at least one of the first support component and the second support component is provided with a wheel set mounting portion, one of the locking structure and the locking matching structure has switchable first and second shapes under the action of external force, so that the first support component and the second support component are relatively fixed or separated, and the frame can be quickly disassembled and installed.

Description

Technical Field

[0001] This application relates to the field of wheelchair technology, and in particular to a frame and wheelchair. Background Technology

[0002] Existing mobile devices and mobility aids, such as wheelchairs, typically employ an integrated design, lacking a modular, disassembly concept, making them inconvenient to handle and transport. Meanwhile, detachable heavy-duty mobility scooters suffer from unreasonable disassembly structures, resulting in overly heavy modules, requiring frequent squatting during disassembly, and in some cases, requiring the mobile device to be flipped over for disassembly, leading to a poor user experience. Utility Model Content

[0003] This application provides a vehicle frame and wheelchair, aiming to solve the problem of unreasonable disassembled structures in existing mobility tools.

[0004] In a first aspect, this application provides a vehicle frame, comprising: The first support component includes a first support frame and a second support frame. The first support frame has a bearing position. The first support component also includes a snap-fit ​​structure and a locking structure, which are disposed on the second support frame. The second support component includes a snap-fit ​​structure and a locking fit structure. The snap-fit ​​structure is used to form a structural snap-fit ​​with the snap-fit ​​structure, and the locking fit structure is used to form a structural locking with the locking fit structure. In this configuration, at least one of the first support component and the second support component is provided with a wheel assembly mounting portion. One of the locking structure and the locking fitting structure has a switchable first form and a second form under the action of external force. In the first form, the locking structure and the locking fitting structure form a structural lock to fix the first support component and the second support component relatively. In the second form, the locking structure and the locking fitting structure disengage from the structural lock, and the first support component separates from the second support component on the side away from the wheel assembly mounting portion.

[0005] Optionally, the locking structure includes a mounting bracket fixed to the first support frame and a locking piece rotatably connected to the mounting bracket; Under the action of external force, the locking plate rotates relative to the mounting base so that the locking structure has a switchable first form and a second form.

[0006] Optionally, the locking plate includes an arc-shaped body and a lever connected to the arc-shaped body. The arc-shaped body is connected to the locking fitting structure. The lever is used to rotate the arc-shaped body under the action of an external force so that the locking structure switches from the first form to the second form, or switches from the second form to the first form.

[0007] Optionally, the second support frame includes a second connecting component, and the second support frame is movably connected to the second bracket component through the second connecting component; In the first state where the locking structure and the locking fitting structure are structurally locked, the second support frame is relatively fixed to the first support frame; in the second state where the locking structure and the locking fitting structure are disengaged, the second support frame is folded to the first support frame via the second connecting component.

[0008] Optionally, the first support frame includes a first movable frame, a second movable frame, and a first connecting component. The first movable frame has the bearing position, and the first movable frame is movably connected to the second movable frame through the first connecting component. In the first state where the locking structure and the locking fitting structure are structurally locked, the first movable frame is fixed relative to the second movable frame and the second support frame respectively; in the second state where the locking structure and the locking fitting structure are disengaged, the first movable frame is folded together with the second movable frame through the first connecting member.

[0009] Optionally, the first connecting component includes a mounting base disposed on the first movable frame, a hook frame movably hinged to the mounting base, and an elastic element for providing elastic force to the hook frame, wherein a first end of the elastic element is connected to the hook frame and a second end of the elastic element is connected to the mounting base; The mounting base is also provided with a locking pin, and the hook frame is provided with a first mating part that is adapted to the locking pin; Under the action of external force, the hook frame rotates relative to the mounting base through the elastic element to make the locking pin engage or disengage with the first mating part; when the locking pin is engaged with the first mating part, the first movable frame and the second movable frame are relatively fixed; when the locking pin is disengaged from the first mating part, the first movable frame is folded with the second movable frame through the first connecting member, and folded with the second support frame through the second connecting member.

[0010] Optionally, the second support frame includes at least a first crossbar and a second crossbar spaced apart, and the second bracket component includes at least a first crossbeam and a second crossbeam spaced apart. The first crossbar is provided with a locking structure, the second crossbar is provided with a locking structure, the first crossbeam is provided with a locking fitting structure for engaging with the locking structure, and the second crossbeam is provided with a locking fitting structure for locking with the locking structure.

[0011] Optionally, the first support frame further includes a third crossbar, which is spaced apart from the second crossbar to form the bearing position.

[0012] Optionally, the first bracket component further includes a first movable rod, which is movably connected to the first support frame and the second support frame respectively.

[0013] Optionally, the second bracket component further includes a handle assembly disposed on the side of the second bracket component away from the wheel assembly mounting portion.

[0014] Secondly, this application also provides a wheelchair, which includes the aforementioned frame and wheel assembly, wherein the wheel assembly is mounted on the wheel assembly mounting portion.

[0015] The frame provided in this application adopts a modular design, consisting of a detachable first support component and a second support component. Through snap-fit ​​and locking mechanisms, the two components can be quickly disassembled or flexibly assembled into a complete frame structure. This detachable structure allows users to easily assemble the two parts into a stable frame during use to meet load-bearing requirements, while disassembling the frame into two independent components during transportation or handling. This effectively reduces the overall space occupied, facilitating storage and handling, thereby reducing transportation costs and improving space utilization efficiency. Furthermore, unlike traditional disassembly methods, the frame provided in this application eliminates the need to lay the entire device on its side or flip it over, or to squat down. Users can complete the disassembly and assembly of the frame while standing, reducing physical burden and avoiding the risk of impact, thus enhancing safety. Furthermore, this application also provides a wheelchair with the aforementioned frame, which also has the advantages of the aforementioned frame, namely, the wheelchair can be quickly disassembled into two parts, greatly reducing its size and improving portability. At the same time, during the loading and unloading of the wheelchair, there is no need to laboriously flip the bulky chair, and frequent squatting and bending are avoided. The operation process is safe and labor-saving, significantly reducing the operating threshold and physical burden. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional structural diagram of the vehicle frame provided in this application; Figure 2 This is an exploded view of the three-dimensional structure of the vehicle frame; Figure 3 This is an exploded view of the three-dimensional structure of the first support component; Figure 4 A three-dimensional structural diagram of the frame in its first folded state; Figure 5 A three-dimensional structural diagram of the frame in its second folded state; Figure 6 Exploded view of the three-dimensional structure of the first support frame Figure 7 This is a three-dimensional structural diagram of the second support frame; Figure 8 This is a three-dimensional structural diagram of the second support component.

[0018] icon: 10. Chassis; 1. First bracket component; 11. First support frame; 111. First movable frame; 112. Second movable frame; 113. First connecting component; 114. Mounting base; 115. Hook frame; 115a. First mating part; 116. Elastic element; 117. Locking pin; 12. Second support frame; 121. First crossbar; 122. Second crossbar; 123. Third crossbar; 124. Second connecting component; 13. Engaging structure; 14. Locking structure; 141. Mounting bracket; 141a. Limiting part; 142. Locking piece; 143. Arc-shaped main body; 144. Paddle; 15. First movable rod; 2. Second bracket component; 21. Snap-fit ​​structure; 22. Lock fit-fit structure; 23. First crossbeam; 24. Second crossbeam; 25. Handle assembly; 26. Wheel set; 3. Wheelset installation section. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] As an important assistive mobile device, the portability and ease of use of wheelchairs directly affect the user's quality of life. However, most traditional wheelchairs on the market currently use a one-piece frame structure, which, while ensuring overall stability, has significant drawbacks in terms of transportation and storage. Due to the non-detachable one-piece design, wheelchairs are too large to fit in the trunk of a typical family car, or their large size requires multiple people to carry them into the trunk, severely limiting the handling and transportation of wheelchairs.

[0022] Meanwhile, integrated wheelchairs also take up considerable storage space in homes or medical facilities. Although some wheelchair products are detachable, their detachment structures are often poorly designed, requiring either a complete flip or complex operation that necessitates frequent squatting by the user. These issues do not fundamentally address the pain points of cumbersome assembly and disassembly, or inconvenient operation.

[0023] To address the aforementioned technical problems, this application provides a vehicle frame that allows for quick disassembly, aiming to solve the problem of unreasonable disassembly structures in existing personal transportation tools.

[0024] The frame of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] Please see Figure 1 and Figure 2 , Figure 1 This is a three-dimensional structural diagram of the vehicle frame provided by this utility model. Figure 2 This is an exploded view of the three-dimensional structure of the vehicle frame.

[0026] like Figure 1 and Figure 2 As shown, the frame 10 provided in this application includes a first support component 1 and a second support component 2. The first support component 1 includes a first support frame 11 and a second support frame 12. The first support frame 11 has a bearing position, and the first support component 1 also includes a snap-fit ​​structure 13 and a locking structure 14, which are disposed on the second support frame 12.

[0027] The second support component 2 includes a snap-fit ​​structure 21 and a locking fit structure 22. The snap-fit ​​structure 21 is used to form a structural snap-fit ​​with the snap-fit ​​structure 13, and the locking fit structure 22 is used to form a structural locking with the locking structure 14.

[0028] In this design, at least one of the first support component 1 and the second support component 2 is provided with a wheel assembly mounting portion 3. One of the locking structure 14 and the locking fitting structure 22 has a switchable first form and a second form under external force. In the first form, the locking structure 14 and the locking fitting structure 22 form a structural lock, thereby fixing the first support component 1 and the second support component 2 relatively. In the second form, the locking structure 14 and the locking fitting structure 22 disengage, and the first support component 1 separates from the second support component 2 towards the side away from the wheel assembly mounting portion 3.

[0029] For example, in some specific examples, the engaging structure 13 is formed with an engaging groove, which is adapted to the engaging mating structure 21 to form an engaging engagement.

[0030] It should be understood that the engaging structure 13 can be disposed in the first support component 1 or the second support component 2, and correspondingly, the engaging mating structure 21 can be disposed in the second support component 2 or the first support component 1. Similarly, the locking structure 14 can be disposed in the first support component 1 or the second support component 2, and correspondingly, the locking mating structure 22 can be disposed in the second support component 2 or the first support component 1. This application does not impose any limitations.

[0031] For example, the first support component 1 is provided with a locking fitting structure 21 and a locking fitting structure 22, and the second support component 2 is provided with a locking structure 13 and a locking structure 14. Alternatively, the first support component 1 is provided with a locking fitting structure 21 and a locking structure 14, and the second support component 2 is provided with a locking structure 13 and a locking fitting structure 22. Or, the first support component 1 is provided with a locking structure 13 and a locking fitting structure 22, and the second support component 2 is provided with a locking fitting structure 21 and a locking structure 14.

[0032] It's understandable, such as Figure 1 As shown, in some examples, the first support frame 11 and the second support frame 12 can support the target object carried on the support position in at least two different directions, thereby improving the stability, safety and comfort of the support position.

[0033] In this embodiment, the frame 10 adopts a modular design, comprising a detachable first support component 1 and a second support component 2. A snap-fit ​​structure 13 and a locking structure 14 are provided to allow for quick disassembly or flexible assembly of the two components into a complete frame 10 structure. This detachable structure allows users to easily assemble the two parts into a stable frame 10 during use to meet load-bearing requirements. During transportation or handling, the frame 10 can be disassembled into two independent components, effectively reducing overall space occupation and facilitating storage and handling, thereby reducing transportation costs and improving space utilization efficiency. Furthermore, unlike traditional disassembly methods, the frame 10 provided in this application does not require the entire device to be placed on its side or flipped, nor does it require squatting. Users can complete the disassembly and assembly of the frame 10 while standing, reducing physical burden and avoiding the risk of impact, thus enhancing safety.

[0034] For example, such as Figure 2 As shown, when in use, the user sits on the support position along the second direction. When disassembling, the user unlocks the locking structure 14 and lifts the second support component 2 along the second direction to separate the first support component 1 and the second support component 2.

[0035] Please see Figures 2 to 4 In some embodiments, the second support frame 12 includes a second connecting member 124, and the second support frame 12 is movably connected to the second bracket member 2 through the second connecting member 124.

[0036] In the first configuration where the locking structure 14 and the locking fitting structure 22 are structurally locked, the second support frame 12 is relatively fixed to the first support frame 11. In the second configuration where the locking structure 14 and the locking fitting structure 22 are disengaged, the second support frame 12 is folded together with the first support frame 11 via the second connecting member 124.

[0037] In this embodiment, in the first configuration where the locking structure 14 and the locking fitting structure 22 are structurally locked, the second support frame 12 is fixed relative to the first support frame 11 to achieve stable load-bearing, and can support the target object supported at the bearing position in at least two different directions. In the second configuration where the locking structure 14 and the locking fitting structure 22 are disengaged, the second support frame 12 is folded together with the first support frame 11 via the second connecting member 124, which reduces the storage volume.

[0038] Furthermore, in some specific examples, the first support frame 11 includes a first movable frame 111, a second movable frame 112, and a first connecting member 113. The first movable frame 111 has a bearing position, and the first movable frame 111 is movably connected to the second movable frame 112 through the first connecting member 113.

[0039] In the first configuration where the locking structure 14 and the locking fitting structure 22 are structurally locked, the first movable frame 111 is fixed relative to the second movable frame 112 and the second support frame 12, respectively. In the second configuration where the locking structure 14 and the locking fitting structure 22 are disengaged, the first movable frame 111 is folded together with the second movable frame 112 via the first connecting member 113.

[0040] In this embodiment, in the first state where the locking structure 14 and the locking fitting structure 22 are structurally locked, the first movable frame 111 is fixed relative to the second movable frame 112 and the second support frame 12, respectively, which can stably support the bearing position. In the second state where the locking structure 14 and the locking fitting structure 22 are not structurally locked, the first movable frame 111 can be folded with the second movable frame 112 through the first connecting member 113 to reduce the storage volume.

[0041] It's understandable, such as Figure 4 and Figure 5 As shown, the first movable frame 111 can be folded with the second movable frame 112 via the first connecting part 113, and folded with the second support frame 12 via the second connecting part 124, so that the huge frame 10 structure can be formed into three folds, greatly reducing the volume and making it easy to store or transport.

[0042] It's understandable that users can choose whether to disassemble or fold the frame 10 based on their actual needs. For example, in practical applications, users can simply disassemble the frame 10 into the first support component 1 and the second support component 2. Alternatively, with the first support component 1 and the second support component 2 separated, users can fold the first movable frame 111, the second movable frame 112, and the second support frame 12 within the first support component 1 before storage. Or, when the first support component 1 and the second support component 2 are assembled into the frame 10, the first movable frame 111, the second movable frame 112, and the second support frame 12 within the first support component 1 can be folded to meet the need for quick adjustment of the state in short-term storage situations. For example, while waiting for a train, the frame 10 can be transformed from a user-occupied state to a compact state suitable for temporary storage, allowing for quick reuse upon arrival at the destination. This design flexibly addresses storage needs in different scenarios, reducing space occupation during waiting periods and improving travel convenience through efficient structural transformation.

[0043] Specifically, in some embodiments, the first support frame 11 further includes a third crossbar 123, which is spaced apart from the second crossbar 122 to form a bearing position.

[0044] In this embodiment, the third crossbar 123, as a component of the bearing position, strengthens the structural strength of the bearing position, stably supports the bearing position, makes the force on the bearing position more balanced, and indirectly reduces the stress on the locking structure 14. At the same time, the installation position of the third crossbar 123 and the second crossbar 122, which are spaced apart, allows the third crossbar 123 to move synchronously with the first movable frame 111 and the second movable frame 112 in the folded state without affecting the folding of the frame 10.

[0045] Please see Figures 4 to 6 ,like Figure 6 As shown, in some embodiments, the first connecting component 113 includes a mounting base 114 disposed on the first movable frame 111, a hook frame 115 movably hinged to the mounting base 114, and an elastic member 116 for providing elastic force to the hook frame 115. The first end of the elastic member 116 is connected to the hook frame 115, and the second end of the elastic member 116 is connected to the mounting base 114.

[0046] The mounting base 114 is also provided with a locking pin 117, and the hook frame 115 is provided with a first mating part 115a that is adapted to the locking pin 117. Under the action of external force, the hook frame 115 rotates relative to the mounting base 114 through the elastic member 116 to make the locking pin 117 engage or disengage from the first mating part 115a. When the locking pin 117 is engaged with the first mating part 115a, the first movable frame 111 and the second movable frame 112 are relatively fixed. When the locking pin 117 is disengaged from the first mating part 115a, the first movable frame 111 is folded with the second movable frame 112 through the first connecting member 113, and is folded with the second support frame 12 through the second connecting member 124.

[0047] For example, when a user applies external force to rotate the hook frame 115 counterclockwise, the first mating part 115a on the hook frame 115 disengages from the locking pin 117, allowing the frame 10 to be folded. When the user applies external force to rotate the hook frame 115 clockwise to engage the first mating part 115a with the locking pin 117, the frame 10 is ready for use and can carry loads. In some specific examples, the locking pin 117 may also be fixedly mounted on the second movable frame 112; this is not a limitation.

[0048] In this embodiment, the combination of the mounting base 114, hook 115, and elastic element 116 utilizes the elastic force of the elastic element 116 to drive the hook 115 to engage or disengage with the locking pin 117 on the mounting base 114. Only simple external force is required to fix or trigger the folding of the first movable frame 111 and the second movable frame 112. The structure is simple and requires few components, reducing both production costs and the probability of equipment failure and maintenance. Simultaneously, in the unlocked state where the hook 115 is disengaged from the locking pin 117, not only are the first movable frame 111 and the second movable frame 112 folded, but the folding of the first movable frame 111 and the second support frame 12 is also simultaneously facilitated, enabling multiple components to work together to form a linked folding mechanism, thus improving the efficiency of structural transformation.

[0049] In some embodiments, the first support component 1 further includes a first movable rod 15, which is movably connected to the first support frame 11 and the second support frame 12 respectively.

[0050] More specifically, in some specific examples, the first movable rod 15 is movably connected to the second movable frame 112 and the second support frame 12 respectively, and the first movable rod 15 and the first movable frame 111 are spaced apart.

[0051] In this embodiment, the first movable rod 15 is movably connected to both the first support frame 11 and the second support frame 12. When the first bracket component 1 and the second support component 2 are locked in place, the first movable rod 15 can provide coordinated support with the first connecting component 113 and the second connecting component 124, dispersing the pressure on the bearing position of the first movable frame 111 to avoid overload, thereby improving the overall deformation resistance and stability of the frame 10. Simultaneously, since the first movable rod 15 is movably connected to both the first support frame 11 and the second support frame 12, this arrangement retains the necessary movement space for folding while limiting unintended displacement between the first support frame 11 and the second support frame 12 through the rigidity of the rod during use, reducing structural sway and making the load-bearing capacity more stable.

[0052] Please see Figure 7 and Figure 8 ,like Figure 7 As shown, in some embodiments, the locking structure 14 includes a mounting base 141 fixed to the first support frame 11 and a locking piece 142 rotatably connected to the mounting base 141. Under the action of an external force, the locking piece 142 rotates relative to the mounting base 141, allowing the locking structure 14 to have a switchable first form and a second form.

[0053] For example, in some specific examples, the mounting bracket 141 is also provided with a limiting part 141a for fixing the second bracket component 2. When assembling the frame 10, the second bracket component 2 is first initially limited by the limiting part 141a, and then the second bracket component 2 is fixed by the locking piece 142, thus achieving quick positioning and assembly. Specifically, the limiting part 141a can be a groove structure. During disassembly, the locking piece 142 is moved to rotate the first bracket component 1 or the second bracket component 2, so that the locking piece 142 and the groove structure are disengaged from the first bracket component 1. Lifting the first bracket component 1 separates the first bracket component 1 and the second bracket component 2.

[0054] In this embodiment, by combining the mounting bracket 141 and the locking plate 142, switching between the first and second forms can be achieved simply by rotating the locking plate 142. In the first form, the locking structure 14 and the locking fitting structure 22 form a rigid lock, thereby fixing the relative positions of the first support frame 11 and the second support component 2. This prevents the frame 10 from loosening due to vibration or stress during user use, ensuring the structural stability and safety of the frame 10. In the second form, the second support component 2 separates from the first support frame 11 on the side away from the wheel assembly mounting part 3. That is, the separation direction of the second support component 2 from the first support component 1 is opposite to the user's sitting direction. This arrangement eliminates the need for manual side-turning or flipping of the frame 10; the user can easily separate the frame 10 into the first support component 1 and the second support component 2 while standing. This avoids the user's effort in flipping the heavy chair and eliminates the need for frequent squatting and bending, making the operation safe, effortless, and significantly reducing the operational threshold and physical burden.

[0055] Specifically, in some embodiments, the locking plate 142 includes an arc-shaped body 143 and a lever 144 connected to the arc-shaped body 143. The arc-shaped body 143 is connected to the locking fitting structure 22. The lever 144 is used to rotate the arc-shaped body 143 under the action of external force so that the locking structure 14 switches from a first form to a second form, or from a second form to a first form.

[0056] In this embodiment, the design of the paddle 144 provides the user with a point of force to drive the arc-shaped body 143 to rotate in order to lock or release. The arc-shaped body 143 and the locking fitting structure 22 form a larger contact surface to prevent accidental disengagement in the event of vibration or other conditions, thereby enhancing the stability of the locked state.

[0057] like Figure 8As shown, in some embodiments, the second support frame 12 includes at least a first crossbar 121 and a second crossbar 122 spaced apart, and the second support component 2 includes at least a first crossbeam 23 and a second crossbeam 24 spaced apart. The first crossbar 121 is provided with a locking structure 13, the second crossbar 122 is provided with a locking structure 14, the first crossbeam 23 is provided with a locking fitting structure 21 for structurally engaging with the locking structure 13, and the second crossbeam 24 is provided with a locking fitting structure 22 for structurally locking with the locking structure 14.

[0058] In this embodiment, the locking structure 13 of the first crossbar 121 engages with the locking fitting structure 21 of the first crossbeam 23 to achieve initial positioning and limit the relative displacement between the components. The locking structure 14 of the second crossbar 122 engages with the locking fitting structure 22 of the second crossbeam 24 to achieve rigid locking and fixation of the first support component 1 and the second support component 2, preventing loosening due to force or vibration during use. The coordinated operation of the locking structure 13 and the locking structure 14 enables rapid positioning and assembly fixation of the first support component 1 and the second support component 2.

[0059] Furthermore, the first crossbar 121 and the second crossbar 122, and the first crossbeam 23 and the second crossbeam 24 are arranged at intervals, with the first crossbar 121 corresponding to the first crossbeam 23 and the second crossbar 122 corresponding to the second crossbeam 24. This arrangement allows users to quickly align the corresponding components when assembling the frame 10, reducing installation deviations. When disassembling the frame 10, the intervals also prevent interference between different mating structures, ensuring smooth disassembly.

[0060] It can also be understood that when setting the engaging structure 13 and the engaging mating structure 21, the engaging structure 13 can be set on the first crossbar 121, and the engaging mating structure 21 that structurally engages with the engaging structure 13 can be set on the first crossbeam 23; or the engaging mating structure 21 can be set on the first crossbar 121, and the engaging structure 13 that structurally engages with the engaging mating structure 21 can be set on the first crossbeam 23. Similarly, when setting the locking structure 14 and the locking mating structure 22, the locking structure 14 can be set on the second crossbar 122, and the locking mating structure 22 that structurally locks with the locking structure 14 can be set on the second crossbeam 24. Alternatively, the locking mating structure 22 can be set on the second crossbar 122, and the locking structure 14 that structurally locks with the locking mating structure 22 can be set on the second crossbeam 24. This application does not impose any limitations.

[0061] In some embodiments, the second support component 2 further includes a handle assembly 25, which is disposed on the side of the second support component 2 away from the wheel assembly mounting portion 3.

[0062] It is understood that in this embodiment, caregivers or companions can use the handle assembly 25 to push the frame 10 or wheelchair to perform operations such as moving forward, turning, or climbing. Specifically, in some examples, the height, spacing, and grip of the handle assembly 25 are designed to fit the arm posture of a person standing and pushing, reducing wrist and shoulder fatigue for caregivers during long-term pushing and improving the comfort of assisted operation.

[0063] For example, the height of the handle assembly 25 can be achieved by adding a telescopic rod connected to the handle assembly 25, thereby adjusting the height of the handle assembly 25 to accommodate caregivers or companions of different heights.

[0064] More specifically, a braking component can also be installed on the handle assembly 25. Users or assistants can trigger the brake by pulling the braking component to prevent the wheelchair from sliding on slopes or downhill sections, thereby improving mobility safety.

[0065] Secondly, this application also provides a wheelchair, which includes the aforementioned frame 10 and wheel assembly 26, with the wheel assembly 26 mounted on the wheel assembly mounting part 3. The specific structure of the frame 10 can be found in the aforementioned embodiments and will not be repeated here.

[0066] As can be seen from the above, the wheelchair proposed in this application, since it includes the frame 10 mentioned above, also has the advantages of the frame 10 of this application. The wheelchair has the advantages of being detachable and foldable. Users can disassemble the wheelchair into the first support component 1 and the second support component 2 as needed, or fold the first movable frame 111 and the second movable frame 112 through the first connecting component 113 in the assembled state. This allows the wheelchair to significantly reduce its size when stored for a long time, and to quickly switch to a compact state in short-term scenarios such as waiting for a bus, reducing space occupation and improving travel convenience.

[0067] It can also be understood that, in some specific embodiments, the wheel assembly mounting part 3 includes a first wheel assembly mounting part and a second wheel assembly mounting part. The first wheel assembly mounting part is disposed on the first bracket component 1, and the second wheel assembly mounting part is disposed on the second bracket component 2. The wheel assembly 26 includes a first wheel assembly and a second wheel assembly. The first wheel assembly is mounted on the first wheel assembly mounting part, and the second wheel assembly is mounted on the second wheel assembly mounting part. The first wheel assembly mounting part and the second wheel assembly mounting part may be the same or different, and this application does not impose any limitations on this.

[0068] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0069] It should also be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0070] The sequence numbers of the above-described embodiments of this utility model are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific implementations of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A vehicle frame, characterized in that, include: The first support component includes a first support frame and a second support frame. The first support frame has a bearing position. The first support component also includes a snap-fit ​​structure and a locking structure, which are disposed on the second support frame. The second support component includes a snap-fit ​​structure and a locking fit structure. The snap-fit ​​structure is used to form a structural snap-fit ​​with the snap-fit ​​structure, and the locking fit structure is used to form a structural locking with the locking fit structure. In this configuration, at least one of the first support component and the second support component is provided with a wheel assembly mounting portion. One of the locking structure and the locking fitting structure has a switchable first form and a second form under the action of external force. In the first form, the locking structure and the locking fitting structure form a structural lock to fix the first support component and the second support component relatively. In the second form, the locking structure and the locking fitting structure disengage from the structural lock, and the first support component separates from the second support component on the side away from the wheel assembly mounting portion.

2. The frame according to claim 1, characterized in that, The locking structure includes a mounting bracket fixed to the first support frame and a locking piece rotatably connected to the mounting bracket; Under the action of external force, the locking plate rotates relative to the mounting base so that the locking structure has a switchable first form and a second form.

3. The frame according to claim 2, characterized in that, The locking plate includes an arc-shaped body and a lever connected to the arc-shaped body. The arc-shaped body is connected to the locking fitting structure. The lever is used to rotate the arc-shaped body under the action of external force so that the locking structure switches from the first form to the second form, or switches from the second form to the first form.

4. The frame according to claim 1, characterized in that, The second support frame includes a second connecting component, and the second support frame is movably connected to the second bracket component through the second connecting component; In the first state where the locking structure and the locking fitting structure are structurally locked, the second support frame is relatively fixed to the first support frame; in the second state where the locking structure and the locking fitting structure are disengaged, the second support frame is folded to the first support frame via the second connecting component.

5. The frame according to claim 4, characterized in that, The first support frame includes a first movable frame, a second movable frame, and a first connecting component. The first movable frame has the bearing position, and the first movable frame is movably connected to the second movable frame through the first connecting component. In the first state where the locking structure and the locking fitting structure are structurally locked, the first movable frame is fixed relative to the second movable frame and the second support frame respectively; in the second state where the locking structure and the locking fitting structure are disengaged, the first movable frame is folded together with the second movable frame through the first connecting member.

6. The frame according to claim 5, characterized in that, The first connecting component includes a mounting base disposed on the first movable frame, a hook frame movably hinged to the mounting base, and an elastic element for providing elastic force to the hook frame. A first end of the elastic element is connected to the hook frame, and a second end of the elastic element is connected to the mounting base. The mounting base is also provided with a locking pin, and the hook frame is provided with a first mating part that is adapted to the locking pin; Under the action of external force, the hook frame rotates relative to the mounting base through the elastic element to make the locking pin engage or disengage with the first mating part; when the locking pin is engaged with the first mating part, the first movable frame and the second movable frame are relatively fixed; when the locking pin is disengaged from the first mating part, the first movable frame is folded with the second movable frame through the first connecting member, and folded with the second support frame through the second connecting member.

7. The frame according to any one of claims 1-6, characterized in that, The second support frame includes at least a first crossbar and a second crossbar spaced apart, and the second bracket component includes at least a first crossbeam and a second crossbeam spaced apart. The first crossbar is provided with a locking structure, the second crossbar is provided with a locking structure, the first crossbeam is provided with a locking fitting structure for engaging with the locking structure, and the second crossbeam is provided with a locking fitting structure for locking with the locking structure.

8. The frame according to claim 7, characterized in that, The first support frame also includes a third crossbar, which is spaced apart from the second crossbar to form the bearing position.

9. The frame according to any one of claims 1-6, characterized in that, The first bracket component further includes a first movable rod, which is movably connected to the first support frame and the second support frame respectively.

10. The frame according to any one of claims 1-6, characterized in that, The second bracket component also includes a handle assembly disposed on the side of the second bracket component away from the wheel assembly mounting portion.

11. A wheelchair, characterized in that, The wheelchair includes a frame and wheel assembly as described in any one of claims 1-6, wherein the wheel assembly is mounted on the wheel assembly mounting portion.

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