Anti-theft fixing device for wheelchair

Abstract

The utility model relates to the technical field of wheelchairs, in particular to a wheelchair protection fixing device which comprises a safety belt, the safety belt is transversely fixed to the upper portion of a wheelchair body, a protection assembly is installed on the front portion of the wheelchair body, the bottom of the protection assembly is fixed to the bottom of a backrest of the wheelchair body, and the top of the protection assembly is connected with the middle of the safety belt. An extension assembly is installed on the front side of the bottom of the wheelchair body, the protection assembly comprises a gasket, the gasket is located on a seat cushion of the wheelchair body, the top of the front end of the gasket is connected with a flexible cushion, the top of the flexible cushion is connected with screen cloth, and the top of the screen cloth is clamped and matched with the middle of a safety belt through a connecting mechanism. According to the wheelchair protection fixing device, the safety belt is transversely fixed to the upper portion of the wheelchair body and tightly connected with the protection assembly on the front portion, and the risk of slipping or injury is effectively avoided; and through the design of the connecting mechanism, clamping and releasing of the safety belt become simple and rapid, use habits of different passengers are adapted, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair technology, and more specifically, to a wheelchair anti-locking device. Background Technology

[0002] In the field of wheelchair technology, traditional wheelchair designs primarily focus on mobility and comfort, while safety restraints for occupants are often relatively simple, typically relying solely on basic seat belts. However, for occupants with limited mobility or frailty, such restraint methods may not provide sufficient stability and safety during wheelchair movement, especially on bumpy roads or during emergency braking, posing a risk of slipping off the wheelchair or sustaining injury.

[0003] In addition, during long-term use, the wheelchair's fixation devices and protective components may fail due to wear or aging, requiring frequent replacement or repair, which increases the cost of use and the difficulty of maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a wheelchair anti-lock device to solve the problem mentioned in the background art that such a locking method may not provide sufficient stability and safety for passengers with limited mobility or physical weakness during wheelchair movement, especially when encountering bumpy roads or emergency braking, where passengers are at risk of slipping off the wheelchair or getting injured.

[0005] To achieve the above objectives, this utility model provides a wheelchair anti-lock device, including a seat belt, which is laterally fixed to the upper part of the wheelchair body. A protective component is installed at the front of the wheelchair body, the bottom of the protective component is fixed to the bottom of the backrest of the wheelchair body, the top of the protective component is connected to the middle of the seat belt, and an extension component is installed on the front bottom of the wheelchair body. The protective component includes a pad, which is located on the seat cushion of the wheelchair body. A flexible pad is connected to the top front end of the pad, and a mesh is connected to the top of the flexible pad. The top of the mesh is engaged with the middle of the seat belt through a connecting mechanism.

[0006] Preferably, the mesh fabric is made of a mesh nonwoven material, and the flexible pad is made of silicone material.

[0007] Preferably, both sides of the pad are fixed to the bottom of the backrest of the wheelchair body by straps.

[0008] Preferably, the extension component includes a horizontally arranged fixing groove, a movable plate is slidably arranged inside the fixing groove, one end of the movable plate can slide to the outside of the front end of the fixing groove, and a limit block is fixedly arranged at the bottom of one end of the movable plate inside the fixing groove, the limit block can slide within the fixing groove.

[0009] Preferably, the connecting mechanism includes a housing, with the top of the mesh fabric connected to the outer side of one end of the housing. A retaining plate is provided inside the housing, and the back of the retaining plate is hinged to the inner wall of the housing via a hinge seat. A hook is installed at one end of the retaining plate, and the safety belt extends into the housing and engages with the hook. A groove is provided on the inner wall of the housing near the front of the hook.

[0010] Preferably, the housing has a slotted opening near the hook for the seat belt to enter and exit. A push plate is installed on the top of the housing, and a pressure post is installed at the bottom of the push plate. An opening is provided on the top surface of the housing. The bottom of the pressure post slides through the opening and extends into the housing, pressing against the back of the other end of the push plate. The downward pressure of the pressure post can cause the other end of the push plate to descend, causing one end of the hook to lift up and separate from the seat belt.

[0011] Preferably, a return spring is installed between the bottom of the button and the top outer side of the housing.

[0012] Preferably, a clamping spring is installed between the back of the hook and the inner wall of the housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This wheelchair restraint system utilizes a lateral seatbelt secured to the upper part of the wheelchair body, tightly connected to the front protective components, forming a robust safety system. This design ensures the occupant remains stable even on bumpy roads or during emergency braking, effectively preventing the risk of slippage or injury. The flexible padding and mesh fabric within the protective components provide both a comfortable feel and enhanced restraint.

[0015] Furthermore, the design of the extension components allows the wheelchair to be adjusted in length to suit the different needs of the rider, making it convenient for patients with leg limitations to place their feet and easily adapting to various scenarios. The ingenious design of the connecting mechanism makes the engagement and disengagement of the seatbelt simple and quick, accommodating the usage habits of different riders and enhancing the device's practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the extension component in this utility model;

[0019] Figure 4This is a schematic diagram of the connecting mechanism in this utility model;

[0020] The meanings of the labels in the diagram are as follows:

[0021] 1. Wheelchair body; 2. Safety belt; 3. Protective components; 31. Flexible pad; 32. Mesh fabric; 33. Gasket; 34. Strap; 4. Extension components; 41. Fixing groove; 42. Movable plate; 421. Limiting block; 5. Connecting mechanism; 51. Housing; 511. Groove; 512. Opening; 52. Locking plate; 521. Hook; 522. Hinge seat; 53. Press plate; 531. Pressure column; 532. Return spring; 54. Tightening spring. Detailed Implementation

[0022] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a wheelchair anti-fixation device, such as... Figures 1-4 As shown, the wheelchair includes a seat belt 2, which is horizontally fixed to the upper part of the wheelchair body 1. A protective component 3 is installed at the front of the wheelchair body 1. The bottom of the protective component 3 is fixed to the bottom of the backrest of the wheelchair body 1. The top of the protective component 3 is connected to the middle of the seat belt 2. An extension component 4 is installed on the front bottom of the wheelchair body 1. The protective component 3 includes a pad 33, which is located on the seat cushion of the wheelchair body 1. A flexible pad 31 is connected to the top of the front end of the pad 33. A mesh fabric 32 is connected to the top of the flexible pad 31. The top of the mesh fabric 32 is engaged with the middle of the seat belt 2 through a connecting mechanism 5.

[0024] In use, the seat belt 2 is horizontally fixed to the upper part of the wheelchair body 1, forming a basic occupant restraint structure, effectively preventing the occupant from tilting forward or sliding sideways during wheelchair movement. The protective component 3 installed at the front of the wheelchair body 1 is firmly fixed to the bottom of the backrest of the wheelchair body 1 at the bottom, and connected to the middle of the seat belt 2 at the top. This design enhances the overall stability and protection.

[0025] Furthermore, the pad 33 in the protective component 3 is located on the seat cushion of the wheelchair body 1, providing an additional layer of comfort and support for the occupant. At the same time, as the basic part of the protective component, it ensures the stability of the entire protective structure. The flexible pad 31 connected to the front top of the pad 33, with its soft material and conformability, further enhances the occupant's comfort and reduces the feeling of pressure caused by long-term sitting.

[0026] The mesh fabric 32 connected to the top of the flexible pad 31 not only has good breathability but also disperses and absorbs the pressure generated by the occupant's body to a certain extent, making the riding experience more comfortable. The top of the mesh fabric 32 is engaged with the seat belt 2 through the connecting mechanism 5. This ingenious design creates a tight connection between the protective components and the seat belt, enhancing the overall fixation effect and ensuring the safety and stability of the occupant in various movement states.

[0027] In this embodiment, the mesh fabric 32 is made of a mesh non-woven fabric material, and the flexible pad 31 is made of silicone material. The mesh fabric 32, made of mesh non-woven fabric, has good breathability and comfort, effectively dispersing and absorbing pressure generated by the occupant's body while keeping the front of the groin dry, thus improving the riding experience. The flexible pad 31, made of silicone material, has excellent softness and elasticity, conforming to the occupant's hip curve, providing additional support and cushioning, and reducing discomfort from prolonged sitting.

[0028] Specifically, both sides of the pad 33 are fixed to the bottom of the backrest of the wheelchair body 1 by straps 34, ensuring the stability and reliability of the protective component 3 and preventing displacement or loosening during use.

[0029] Furthermore, the extension component 4 includes a horizontally arranged fixing groove 41, which is fixedly installed on the bottom front side of the wheelchair body 1. A movable plate 42 is slidably arranged inside the fixing groove 41. A limit block 421 is fixedly installed at the bottom of one end of the movable plate 42 inside the fixing groove 41, and the limit block 421 can slide within the fixing groove 41. The design of the extension component 4 allows the wheelchair to be adjusted in length according to the different needs of the occupant. The movable plate 42 slides within the fixing groove 41, and the limit block 421 prevents the movable plate 42 from falling out, ensuring the stability and safety of the extension component 4.

[0030] Furthermore, the connecting mechanism 5 includes a housing 51. The top of the mesh fabric 32 is connected to the outer side of one end of the housing 51. A retaining plate 52 is provided inside the housing 51. The back of the retaining plate 52 is hinged to the inner wall of the housing 51 via a hinge seat 522. A hook 521 is installed at one end of the retaining plate 52. After the safety belt 2 extends into the interior of the housing 51, it engages with the hook 521. A groove 511 is provided on the inner wall of the housing 51 near the front of the hook 521. The design of the connecting mechanism 5 enables quick connection and separation between the safety belt 2 and the protective component 3. The retaining plate 52 rotates within the housing 51 via the hinge seat 522, and the hook 521 engages with the safety belt 2. The groove 511 provides sufficient space for the hook 521, making the connection and separation process smoother.

[0031] Furthermore, a slotted opening is provided at one end of the housing 51 near the hook 521 for the insertion and exit of the seat belt 2. A push plate 53 is installed on the top of the housing 51, and a pressure post 531 is installed at the bottom of the push plate 53. An opening 512 is provided on the top surface of the housing 51. The bottom of the pressure post 531 slides through the opening 512 and extends into the housing 51, pressing against the back of the other end of the push plate 52. Pressing down the pressure post 531 causes the other end of the push plate 52 to descend, raising one end of the hook 521 and separating it from the seat belt 2. Through the design of the push plate 53 and the pressure post 531, the seat belt 2 can be quickly released. Pressing down the push plate 53 causes the pressure post 531 to descend, raising the other end of the push plate 52 and separating it from the seat belt 2, making the operation simple and quick.

[0032] Furthermore, a return spring 532 is installed between the bottom of the button 53 and the top outer side of the housing 51. The design of the return spring 532 allows the button 53 to automatically reset after the seat belt 2 is released, maintaining the neatness and aesthetics of the connecting mechanism 5, while also facilitating the next use.

[0033] Furthermore, a clamping spring 54 is installed between the back of the hook 521 and the inner wall of the housing 51, and the clamping spring 54 is always in a compressed state. The design of the clamping spring 54 enables the hook 521 to maintain a tight engagement with the seat belt 2 when no external force is applied, which enhances the stability and reliability of the connection and prevents loosening or falling off during use.

[0034] When in use, the wheelchair restraint device of this invention firstly fixes the safety belt 2 laterally to the upper part of the wheelchair body 1, forming a basic occupant restraint structure. This design effectively prevents the occupant from tilting forward or sliding sideways during wheelchair movement, ensuring the occupant's basic safety.

[0035] The pad 33 in the protective component 3 is located on the seat cushion of the wheelchair body 1, providing an additional layer of comfort and support for the occupant. The flexible pad 31, connected to the top front end of the pad 33, further enhances the occupant's comfort and reduces pressure caused by prolonged sitting due to its soft silicone material and conforming fit. The mesh fabric 32, connected to the top of the flexible pad 31, is made of a mesh non-woven fabric material, offering excellent breathability and comfort. The mesh fabric 32 not only effectively disperses and absorbs pressure generated by the occupant's body but also keeps the area in front of the groin dry, improving the riding experience.

[0036] The length of the extension assembly 4 can be adjusted according to the different needs of the passengers by sliding the movable plate 42 within the fixed groove 41. The limiting block 421 prevents the movable plate 42 from falling out, ensuring the stability and safety of the extension assembly 4.

[0037] When it is necessary to connect the mesh fabric 32 to the seat belt 2, pressing down on the button plate 53 drives the pressure column 531 to move downward. The downward pressure of the pressure column 531 causes the other end of the locking plate 52 to descend, raising one end of the hook 521. At this time, the clamping spring 54 and the return spring 532 are compressed. Then, the seat belt 2 is inserted into the interior of the housing 51 through the slot, and then the seat belt 2 is hooked onto the hook 521. Next, the button plate 53 is released, and the restoring force of the return spring 532 drives the button plate 53 to return to its original position, and the hook 521 is inserted into the groove 511. When it is necessary to release the seat belt 2, pressing down on the button plate 53 raises one end of the hook 521 and separates it from the seat belt 2. The operation is simple and quick, realizing the rapid release of the seat belt 2.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wheelchair restraint device, comprising a safety belt (2), characterized in that: The seat belt (2) is horizontally fixed to the upper part of the wheelchair body (1). A protective component (3) is installed at the front of the wheelchair body (1). The bottom of the protective component (3) is fixed to the bottom of the backrest of the wheelchair body (1). The top of the protective component (3) is connected to the middle of the seat belt (2). An extension component (4) is installed on the front bottom of the wheelchair body (1). The protective component (3) includes a pad (33). The pad (33) is located on the seat cushion of the wheelchair body (1). A flexible pad (31) is connected to the top of the front end of the pad (33). A mesh (32) is connected to the top of the flexible pad (31). The top of the mesh (32) is engaged with the middle of the seat belt (2) through a connecting mechanism (5).

2. The wheelchair anti-lock device according to claim 1, characterized in that: The mesh fabric (32) is made of mesh nonwoven fabric material, and the flexible pad (31) is made of silicone material.

3. The wheelchair anti-lock device according to claim 1, characterized in that: Both sides of the pad (33) are fixed to the bottom of the backrest of the wheelchair body (1) by straps (34).

4. The wheelchair anti-lock device according to claim 1, characterized in that: The extension component (4) includes a horizontally arranged fixing groove (41), and a movable plate (42) is slidably arranged inside the fixing groove (41). One end of the movable plate (42) can slide to the outside of the front end of the fixing groove (41). A limiting block (421) is fixedly arranged at the bottom of one end of the movable plate (42) inside the fixing groove (41). The limiting block (421) can slide inside the fixing groove (41).

5. The wheelchair anti-lock device according to claim 1, characterized in that: The connecting mechanism (5) includes a housing (51), the top of the mesh (32) is connected to the outer side of one end of the housing (51), a card plate (52) is provided inside the housing (51), the back of the card plate (52) is hinged to the inner wall of the housing (51) through a hinge seat (522), a hook (521) is installed at one end of the card plate (52), the safety belt (2) extends into the inside of the housing (51) and engages with the hook (521), and a groove (511) is provided on the inner wall of the housing (51) near the front of the hook (521).

6. The wheelchair anti-fixation device according to claim 5, characterized in that: The housing (51) has a slotted opening near the hook (521) for the seat belt (2) to enter and exit. A push plate (53) is installed on the top of the housing (51), and a pressure post (531) is installed at the bottom of the push plate (53). An opening (512) is provided on the top surface of the housing (51). The bottom of the pressure post (531) slides through the opening (512) and extends into the housing (51) and presses against the back of the other end of the hook plate (52). The pressure post (531) pressing down can drive the other end of the hook plate (52) to descend, so that one end of the hook (521) is raised and separated from the seat belt (2).

7. The wheelchair anti-fixation device according to claim 6, characterized in that: A return spring (532) is installed between the bottom of the button (53) and the top outer side of the housing (51).

8. The wheelchair anti-fixation device according to claim 6, characterized in that: A clamping spring (54) is installed between the back of the hook (521) and the inner wall of the housing (51).

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