Wheelchair

Abstract

The utility model discloses a wheelchair which comprises a mounting frame, a rotary locking mechanism and a supporting mechanism, a seat plate is arranged at the top of the mounting frame, and a connecting plate and a backup plate are rotationally mounted on the front side and the rear side of the mounting frame respectively; the rotation locking mechanism is used for controlling the installation frame, the connecting plate and the backup plate to rotate or be fixed. The supporting mechanism comprises an adjusting assembly and a limiting assembly, the adjusting assembly comprises moving frames and a sliding groove, the sliding groove is formed in the bottom of the mounting frame, and the two moving frames are located on the front side and the rear side of the bottom of the mounting frame correspondingly and slidably connected with the sliding groove through sliding blocks so that the two moving frames can get close to or get away from each other; the limiting assembly can fix the two movable frames to the positions close to or away from each other. The wheelchair and the flatcar can be switched by rotating the locking mechanism and the supporting mechanism, so that the wheelchair can be deformed and is kept stable after deformation, the utilization rate of the device is increased, and waste of instruments is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a wheelchair. Background Art

[0002] For patients with limited mobility, they are usually pushed around in a wheelchair before undergoing minimally invasive surgeries such as abdominal puncture. However, they usually need to lie on a stretcher and be sent back after the surgery, which means that the wheelchair and stretcher can only be transported in one trip, resulting in a waste of equipment and inconvenience in use and management.

[0003] Chinese patent publication number CN113230049B discloses a folding wheelchair, in which a locking mechanism cooperating with each other is provided between the seat cushion frame and the first connecting rod or the second connecting rod, so that the device can be folded and adjusted for easy use by patients.

[0004] However, although the above wheelchair can improve portability to a certain extent by being folded and stored after use, a flatbed cart is still required after surgery, and the wheelchair can still only be used for a single trip, which also causes a waste of equipment.

[0005] Based on this, the utility model designs a wheelchair to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a wheelchair.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A wheelchair, comprising:

[0009] A mounting frame, the top of which is provided with a seat plate, and the front and rear sides of the mounting frame are respectively rotatably provided with a connecting plate and a backing plate;

[0010] A rotation locking mechanism, which is used to control the rotation or fixation of the mounting frame, the connecting plate and the backing plate; and

[0011] The supporting mechanism comprises an adjusting component and a limiting component, wherein the adjusting component comprises a moving frame and a slide groove, wherein the slide groove is provided at the bottom of the mounting frame, and the two moving frames are respectively located at the front and rear sides of the bottom of the mounting frame, and are respectively slidably connected with the slide groove through sliders, so that the two moving frames can be close to or away from each other, and a universal wheel is provided at the bottom of the moving frame, and the limiting component can fix the two moving frames at a position close to or away from each other.

[0012] Furthermore, one end of the connecting plate away from the mounting frame is rotatably connected to a foot plate, one end of the foot plate extends out of the upper side of the connecting plate for supporting the patient's foot, the other end of the foot plate is located on the lower side of the connecting plate and is rotatably connected to a connecting rod, the connecting rod is located on the lower side of the connecting plate and the other end of the connecting rod is rotatably connected to the bottom of the mounting frame.

[0013] Furthermore, a rotating shaft rotatably connected to the front side of the mounting frame is fixedly installed at one end of the connecting plate, and a rotating shaft rotatably connected to the back plate is fixedly installed at the rear side of the mounting frame.

[0014] Furthermore, the rotation locking mechanism includes a mounting plate, a rotating rod and a support frame, wherein the mounting plate is respectively provided with one end of each rotating shaft, and a plurality of latch teeth are evenly distributed circumferentially on the mounting plate, and the two rotating rods are respectively rotatably connected to one side of the mounting frame and the back plate, the rotating rod on the mounting frame corresponds to the mounting plate on the connecting plate rotating shaft, and the rotating rod on the back plate corresponds to the mounting plate on the mounting frame rotating shaft, a handle is provided at one end of the rotating rod and a locking block is provided at the other end, the rotating rod is connected to the support frame via a first spring, and the two support frames are respectively fixedly mounted on the mounting frame or the back plate where the corresponding rotating rods are located, and the first spring can provide elastic force to rotate the locking block to be clamped between the two latch teeth.

[0015] Furthermore, support blocks are respectively provided on the top side of the two movable frames away from each other, and supports are respectively provided at the bottom of the mounting frame, the back plate and the connecting plate at each extreme position of the movement of the support blocks, and the support blocks can abut against the corresponding supports up and down.

[0016] Furthermore, the limit assembly includes a sleeve, and a sleeve is respectively arranged at each limit position of the movement of the support block corresponding to the bottom of the support plate and the connecting plate. A limit groove is opened on one side of the sleeve, and a gear rod is slidably inserted into one end of the sleeve. A second spring is connected between the inner end of the gear rod and the inside of the sleeve to provide an elastic force to push the gear rod out of the sleeve. A push block is arranged on the gear rod and slides out of the limit groove. When the support block moves to the limit position, the gear rod at the corresponding position can block the support block to prevent the support block from moving in the opposite direction.

[0017] Furthermore, a baffle is fixedly installed in the middle of the slide groove.

[0018] The utility model has the following technical effects:

[0019] The utility model releases the locking state of the back board by operating the rotation locking mechanism between the back board and the mounting frame, and after the back board is rotated to a suitable angle, the back board is locked by the rotation locking mechanism, the patient sits on the seat board, the foot board supports the patient's feet, and the back board supports the patient's back, so that the patient can keep sitting; the back board is pushed to drive the patient to move through the universal wheels; when the transferred patient needs to lie flat, the back board and the connecting board are unlocked by the rotation locking mechanism, and the back board is rotated so that the upper surface of the back board and the seat board are in the same horizontal plane; the connecting board is rotated so that the upper surface of the connecting board and the seat board are in the same horizontal plane, and the connecting board drives the foot board to rotate through the connecting rod so that the upper surface of the foot board and the connecting board are in the same horizontal plane, so that it is convenient for the patient to lie flat; the back board and the connecting board are locked by the rotation locking mechanism; the limiting assembly is operated so that the limiting assembly no longer hinders the movement of the adjusting assembly, and the adjustment assembly is operated to drive the change of the distance between the front and rear universal wheels, so that the adjusting assembly moves to the lower side of the back board and the connecting board, thereby better supporting the back board and the connecting board, making the device more stable. The conversion between the wheelchair and the flatbed cart is achieved by rotating the locking mechanism and the supporting mechanism, thereby improving the utilization rate of the device and avoiding the waste of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A three-dimensional wheelchair of the utility model Figure 1 ;

[0022] Figure 2 It is a front view of a wheelchair of the utility model;

[0023] Figure 3 The utility model is a wheelchair after removing part of the installation frame from the three-dimensional Figure 2 ;

[0024] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0025] Figure 5 This is an enlarged view of the slider and its connection structure;

[0026] Figure 6 This is an enlarged view of the connecting rod and its connection structure.

[0027] The numbers in the figure represent:

[0028] 1. Mounting frame; 2. Seat plate; 3. Back plate; 4. Connecting plate; 5. Foot plate; 6. Rotation locking mechanism; 61. Mounting plate; 62. Clamping teeth; 63. Locking block; 64. Turn bar; 65. Handle; 66. First spring; 7. Support mechanism; 71. Adjustment assembly; 711. Moving frame; 712. Slider; 713. Slide groove; 714. Baffle plate; 715. Support; 716. Support block; 72. Limiting assembly; 721. Baffle rod; 722. Push block; 723. Second spring; 724. Limiting groove; 725. Sleeve; 8. Universal wheel; 9. Connecting rod; 10. Support frame. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model is further described below in conjunction with embodiments.

[0031] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0032] Please refer to the instruction manual Figure 1-6 A wheelchair comprises a mounting frame 1, a rotation locking mechanism 6 and a supporting mechanism 7.

[0033] A seat plate 2 is arranged on the top of the mounting frame 1, and a connecting plate 4 and a backing plate 3 are rotatably mounted on the front and rear sides of the mounting frame 1 respectively.

[0034] Preferably, one end of the connecting plate 4 away from the mounting frame 1 is rotatably connected to a foot plate 5, one end of the foot plate 5 extends out of the upper side of the connecting plate 4 for supporting the patient's foot, the other end of the foot plate 5 is located on the lower side of the connecting plate 4 and is rotatably connected to a connecting rod 9, the connecting rod 9 is located on the lower side of the connecting plate 4 and the other end of the connecting rod 9 is rotatably connected to the bottom of the mounting frame 1.

[0035] Furthermore, a rotating shaft rotatably connected to the front side of the mounting frame 1 is fixedly installed at one end of the connecting plate 4 , and a rotating shaft rotatably connected to the back plate 3 is fixedly installed at the rear side of the mounting frame 1 .

[0036] The rotation locking mechanism 6 is used to control the rotation or fixation of the mounting frame 1 , the connecting plate 4 and the backing plate 3 .

[0037] Specifically, the rotation locking mechanism 6 includes a mounting plate 61, a rotating rod 64 and a support frame 10. A mounting plate 61 is provided at one end of each rotating shaft. A plurality of latch teeth 62 are evenly distributed circumferentially on the mounting plate 61. The two rotating rods 64 are respectively rotatably connected to one side of the mounting frame 1 and the support plate 3. The rotating rod 64 on the mounting frame 1 corresponds to the mounting plate 61 on the rotating shaft of the connecting plate 4, and the rotating rod 64 on the support plate 3 corresponds to the mounting plate 61 on the rotating shaft of the mounting frame 1. A handle 65 is provided at one end of the rotating rod 64 and a locking block 63 is provided at the other end. The rotating rod 64 is connected to the support frame 10 through a first spring 66, and the two support frames 10 are respectively fixedly installed on the mounting frame 1 or the support plate 3 where the corresponding rotating rod 64 is located. The first spring 66 can provide elastic force to rotate the locking block 63 to be locked between the two latch teeth 62.

[0038] When the rotary locking mechanism 6 works normally, pressing the handle 65 drives the rotating rod 64 to rotate, thereby driving the locking block 63 to move, the first spring 66 is stretched, and the locking block 63 no longer contacts the latch tooth 62, so that the locking block 63 no longer hinders the movement of the mounting plate 61, thereby completing the unlocking of the back plate 3 and the connecting plate 4; after the back plate 3 and the connecting plate 4 are adjusted to a suitable angle, the handle 65 is released, the first spring 66 is reset, driving the rotating rod 64 and the locking block 63 to reset, and the locking block 63 is engaged with the latch tooth 62, thereby locking the mounting plate 61 connected to the latch tooth 62, thereby locking the back plate 3 and the connecting plate 4 fixedly connected to the mounting plate 61; thereby, the back plate 3 and the connecting plate 4 can be adjusted to multiple angles and can be fixed at multiple angles.

[0039] The supporting mechanism 7 includes an adjusting component 71 and a limiting component 72. The adjusting component 71 includes a moving frame 711 and a slide groove 713. The slide groove 713 is opened at the bottom of the mounting frame 1. The two moving frames 711 are respectively located at the front and rear sides of the bottom of the mounting frame 1, and are respectively slidably connected with the slide groove 713 through sliders 712, so that the two moving frames 711 can be close to or away from each other. Universal wheels 8 are provided at the bottom of the moving frames 711. The limiting component 72 can fix the two moving frames 711 at a position close to or away from each other.

[0040] Preferably, a baffle 714 is fixedly installed in the middle of the slide groove 713.

[0041] In one embodiment, support blocks 716 are respectively provided on the top side of the two movable frames 711 away from each other, and supports 715 are respectively provided at each extreme position of the movement of the support blocks 716 at the bottom of the mounting frame 1, the support plate 3 and the connecting plate 4, and the support blocks 716 can be abutted against the corresponding supports 715 up and down.

[0042] Furthermore, the limiting assembly 72 includes a sleeve 725, and a sleeve 725 is respectively arranged at each extreme position of the movement of the support block 716 at the bottom of the support plate 3 and the connecting plate 4. A limiting groove 724 is opened on one side of the sleeve 725, and a shift rod 721 is slidably inserted at one end of the sleeve 725. A second spring 723 is connected between the inner end of the shift rod 721 and the inside of the sleeve 725 to provide an elastic force to push the shift rod 721 out of the sleeve 725. A push block 722 is arranged on the shift rod 721 to slide out of the limiting groove 724. When the support block 716 moves to the extreme position, the shift rod 721 at the corresponding position can block the support block 716 to prevent the support block 716 from moving in the opposite direction.

[0043] When the device is in the wheelchair state, one end of the front moving frame 711 is blocked by the baffle plate 714, and the other end is blocked by the connecting plate 4; one end of the rear moving frame 711 is blocked by the baffle plate 714, and the support block 716 at the other end abuts against the support 715 at the lower end of the back plate 3 and is blocked by the blocking rod 721, so that the moving frame 711 and the universal wheel 8 on the moving frame 711 remain in this state; when switching to the flat car state, it is only necessary to rotate the connecting plate 4 and the back plate 3 to be level with the seat plate 2 by rotating the locking mechanism 6, and then toggle the corresponding gear lever 721 to release the blocking of the support block 716, and slide the two moving frames 711 away from each other until they move to the limit distance, and then block the gear lever 721 in this position on the reverse movement path of the support block 716 to complete the adjustment of the spacing between the universal wheels 8 on the front and rear sides, so that the device remains stable after deformation.

[0044] When the wheelchair is working normally, the locking state of the backboard 3 is released by operating the rotation locking mechanism 6 between the backboard 3 and the mounting frame 1, and the backboard 3 is locked by the rotation locking mechanism 6 after the backboard 3 is rotated to a suitable angle, and the patient sits on the seat plate 2, the footboard 5 supports the patient's feet, and the backboard 3 supports the patient's back, so that the patient can remain sitting; the backboard 3 is pushed to move the patient through the universal wheels 8; when the transferred patient needs to remain lying flat, the backboard 3 and the connecting plate 4 are unlocked by rotating the locking mechanism 6, and the backboard 3 is rotated so that the upper surface of the backboard 3 and the seat plate 2 are located at the same horizontal plane; The movable connecting plate 4 makes the connecting plate 4 and the upper surface of the seat plate 2 in the same horizontal plane, and the connecting plate 4 drives the foot plate 5 to rotate through the connecting rod 9, so that the foot plate 5 and the upper surface of the connecting plate 4 are in the same horizontal plane, so that it is convenient for the patient to lie flat; the back plate 3 and the connecting plate 4 are locked by rotating the locking mechanism 6; the limiting component 72 is operated so that the limiting component 72 no longer hinders the movement of the adjustment component 71, and the adjustment component 71 is operated to change the distance between the front and rear universal wheels 8, so that the adjustment component 71 moves to the lower side of the back plate 3 and the connecting plate 4, so as to better support the back plate 3 and the connecting plate 4, making the device more stable. By rotating the locking mechanism 6 and the supporting mechanism 7, the conversion between the wheelchair and the flat car is realized, which improves the utilization rate of the device and avoids the waste of equipment.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wheelchair, characterized in that: include: A mounting frame (1) having a seat plate (2) disposed on the top thereof, and a connecting plate (4) and a backing plate (3) rotatably mounted on the front and rear sides of the mounting frame (1); A rotation locking mechanism (6) for controlling the rotation or fixation of the mounting frame (1), the connecting plate (4) and the backing plate (3); and The support mechanism (7) comprises an adjustment component (71) and a limit component (72); the adjustment component (71) comprises a movable frame (711) and a slide groove (713); the slide groove (713) is arranged at the bottom of the mounting frame (1); the two movable frames (711) are respectively located at the front and rear sides of the bottom of the mounting frame (1) and are respectively slidably connected to the slide groove (713) through a slider (712) so that the two movable frames (711) can be close to or away from each other; a universal wheel (8) is arranged at the bottom of the movable frame (711); and the limit component (72) can fix the two movable frames (711) at a position close to or away from each other.

2. The wheelchair according to claim 1, characterized in that: One end of the connecting plate (4) away from the mounting frame (1) is rotatably connected to a foot plate (5); one end of the foot plate (5) extends out of the upper side of the connecting plate (4) and is used to support the patient's foot; the other end of the foot plate (5) is located on the lower side of the connecting plate (4) and is rotatably connected to a connecting rod (9); the connecting rod (9) is located on the lower side of the connecting plate (4) and the other end of the connecting rod (9) is rotatably connected to the bottom of the mounting frame (1).

3. The wheelchair according to claim 1, characterized in that: A rotating shaft rotatably connected to the front side of the mounting frame (1) is fixedly mounted on one end of the connecting plate (4), and a rotating shaft rotatably connected to the back plate (3) is fixedly mounted on the rear side of the mounting frame (1).

4. The wheelchair according to claim 3, characterized in that: The rotation locking mechanism (6) comprises a mounting plate (61), a rotating rod (64) and a support frame (10), wherein one mounting plate (61) is provided at one end of each rotating shaft, and a plurality of latching teeth (62) are evenly distributed circumferentially on the mounting plate (61). The two rotating rods (64) are respectively rotatably connected to one side of the mounting frame (1) and the supporting plate (3), wherein the rotating rod (64) on the mounting frame (1) corresponds to the mounting plate (61) on the rotating shaft of the connecting plate (4), and the rotating rod (64) on the supporting plate (3) corresponds to the mounting plate (61) on the rotating shaft of the connecting plate (4). A mounting plate (61) is disposed on a rotating shaft of the mounting frame (1); a handle (65) is disposed at one end of the rotating rod (64) and a locking block (63) is disposed at the other end; the rotating rod (64) is connected to the support frame (10) via a first spring (66); and the two support frames (10) are respectively fixedly mounted on the mounting frame (1) or the support plate (3) where the corresponding rotating rod (64) is located; the first spring (66) can provide elastic force to rotate the locking block (63) so as to be locked between the two locking teeth (62).

5. The wheelchair according to claim 1, characterized in that: A support block (716) is respectively arranged on one side of the top of the two movable frames (711) away from each other, and a support (715) is respectively arranged at each extreme position of movement of the support block (716) at the bottom of the mounting frame (1), the support plate (3) and the connecting plate (4), and the support block (716) can abut against the corresponding support (715) up and down.

6. The wheelchair according to claim 5, characterized in that: The limiting assembly (72) includes a sleeve (725), and the bottom of the support plate (3) and the connecting plate (4) is respectively provided with a sleeve (725) at each limit position of the movement of the support block (716). A limiting groove (724) is provided on one side of the sleeve (725), and a shift rod (721) is slidably inserted at one end of the sleeve (725). A second spring (723) is connected between the inner end of the shift rod (721) and the inside of the sleeve (725) to provide an elastic force to push the shift rod (721) out of the sleeve (725). A push block (722) is provided on the shift rod (721) and slides out of the limiting groove (724). When the support block (716) moves to the limit position, the shift rod (721) at the corresponding position can block the support block (716) to prevent the support block (716) from moving in the reverse direction.

7. The wheelchair according to claim 1, characterized in that: A baffle (714) is fixedly mounted in the middle of the slide groove (713).

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