Anti-falling wheelchair

Abstract

The utility model provides an anti-falling wheelchair, which belongs to the field of wheelchairs and comprises a wheelchair support, a seat plate is arranged at the top of the wheelchair support, baffles are arranged on two sides of the top of the seat plate, a chair back is arranged on the other side of the top of the seat plate, and the opposite sides of the two baffles are connected with the surface of the chair back through limiting components. An auxiliary assembly is arranged at one end of the bottom of the wheelchair support. A buffering assembly is arranged on the surface of the top of the seat plate. The two sliding blocks move in the two sliding grooves and drive the two elastic bent rods to move, after the positions are appropriate, the two sliding blocks and the two strip-shaped blocks are limited and fixed, the distance between the two elastic bent rods and the chair back is adjusted, the two elastic bent rods are matched with the chair back, the two connectors and the limiting nuts to drive the two elastic belts to move, and the two elastic belts are driven to move. The two elastic bent rods make contact with the shoulders of the patient, the inner walls of the two elastic bent rods are fixed to the abdomen of the patient, the electric snap fastener is clamped with the electric sub-fastener, the two elastic bent rods are connected and fixed, and the patient is limited.

Description

Technical Field

[0001] The utility model relates to the field of wheelchairs, in particular to a fall-proof wheelchair. Background Art

[0002] A wheelchair is a chair equipped with wheels that can help replace walking. It is divided into electric and manual folding wheelchairs. It is an important mobile tool for home rehabilitation, turnover transportation, medical treatment, and outdoor activities for the wounded, sick, and disabled. The wheelchair not only meets the needs of the physically disabled and those with limited mobility, but more importantly, it is convenient for family members to move and take care of the patients, so that the patients can use the wheelchair for physical exercise and participate in social activities. After searching the application number CN202020715034.X, a wheelchair disclosed in the application number CN202020715034.X is recorded to include a wheelchair body, which includes a back frame, a seat frame, a support frame, and a foot frame assembly. One end of the seat frame is rotatably connected to the back frame, and the other end of the seat frame is rotatably connected to the foot frame assembly. The wheelchair body is provided with an adjustment assembly for rotating the back frame, the seat frame, and the foot frame assembly to a horizontal state. The support frame is connected to the seat frame, and the support frame is provided with a moving wheel assembly. By adopting the utility model, the wheelchair can be adjusted to a lying state, and the user can lie flat on the wheelchair, which increases the scope of application of the wheelchair. However, the above description still has the following defects in actual use: the current wheelchair lacks a structure to limit the position of patients with delirium, agitation and easy to get lost when in use, making it easy for them to get off the wheelchair privately and cause adverse events, thereby causing falls. Therefore, it is necessary to design a practical anti-fall wheelchair. Utility Model Content

[0003] The purpose of the utility model is to provide a fall-proof wheelchair to solve the problems raised by the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-fall wheelchair, comprising a wheelchair support, a seat plate is arranged on the top of the wheelchair support, baffles are arranged on both sides of the top of the seat plate, a chair back is arranged on the other side of the top of the seat plate, the opposite sides of the two baffles are mounted and connected to the surface of the chair back through a limit assembly, an auxiliary assembly is arranged at one end of the bottom of the wheelchair support, and a buffer assembly is arranged on the surface of the top of the seat plate;

[0005] The limit assembly comprises two strip blocks installed on the surfaces of opposite sides of the two baffles, a slide groove is provided on the opposite sides of the two strip blocks, and sliders are slidably connected on the inner walls of the two slide grooves, one end of the two sliders are provided with a groove, the inner wall of the groove is provided with a socket, the inner wall of the socket is engaged with a plurality of limit holes provided on one side of the inner wall of the slide groove through a limit pin, one side of the two sliders are fixedly connected with an elastic bent rod, the surfaces of the other ends of the two elastic bent rods are provided with connecting blocks, the surfaces of the two elastic bent rods near the connecting blocks are fixedly connected with elastic bands, the other ends of the two elastic bands are provided with joints, the surfaces of the other ends of the two joints are interlaced and connected with the surface of the chair back, and the other ends of the two joints are threadedly connected with limiting nuts.

[0006] An auxiliary component includes two mounting blocks installed at one end of the bottom of the wheelchair frame, the opposite sides of the two mounting blocks are interlaced and connected with the fixing rod, both ends of the fixing rod are provided with locking nuts, the surface of the fixing rod is provided with two mounting rings, one side of the bottom of the two mounting rings is provided with a limit block, and the other ends of the two limit blocks are fixedly connected with a rubber block.

[0007] As a preferred solution of the utility model: the buffer assembly includes several mounting sleeves installed on the top surface of the seat plate, the top ends of several mounting sleeves are interspersed with support rods, the bottoms of several support rods are provided with push blocks, the sides of several push blocks are slidably connected with cavities provided on the inner walls of several mounting sleeves, the bottoms of several push blocks are fixedly connected with springs provided on the bottoms of the inner walls of several mounting sleeves, the top ends of several support rods are snap-connected with several snap-in holes provided on the bottom of the load-bearing plate, a weight sensor is provided in the middle of the bottom of the load-bearing plate, a sponge pad is provided below the weight sensor, the bottom of the sponge pad is fixedly connected to the middle of the top of the seat plate, and the weight sensor is electrically connected to a control switch provided on the other side surface of the chair back.

[0008] As a preferred solution of the utility model: moving blocks are provided on the top and bottom of the slider, the surfaces of the two moving blocks are slidably connected to the moving grooves provided on the top and bottom of the inner wall of the slide groove, through holes are provided on both sides of the two moving blocks, and the inner walls of the two through holes are slidably connected to the guide rods provided on the inner walls of the two moving grooves.

[0009] As a preferred solution of the utility model: two mounting holes are provided on the sides of the surface of the chair back, the inner walls of the two mounting holes are interlaced and connected with the surfaces of the two joints, and armrests are provided on both sides of the top of the chair back.

[0010] As a preferred solution of the utility model: through holes are provided on the surfaces of the two mounting blocks on opposite sides, and the inner walls of the two through holes are interlaced and connected with the surfaces at both ends of the fixing rod.

[0011] As a preferred solution of the utility model: slots are provided at opposite ends of the two connection blocks, one of which is provided with an electronic female buckle on its inner wall, and the electronic female buckle is snap-connected with the electronic sub-buckle on the inner wall of the other slot.

[0012] As a preferred solution of the utility model: two driving wheels are arranged on one side of the bottom of the wheelchair bracket, and two driven wheels are arranged on the other side of the bottom of the wheelchair bracket.

[0013] As a preferred solution of the utility model: the side of the wheelchair bracket is fixedly connected to the top of the two pedals through two auxiliary frames.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The two sliders move in the two slide grooves, and the two sliders drive the two groups of moving blocks to slide on the guide rod surfaces of the inner walls of the two groups of moving grooves. The movement of the two sliders is limited. When the position is appropriate, the two limit pins are inserted into the corresponding two plug holes and the limit holes, so that the two sliders and the two strip blocks are limited and fixed, so as to adjust the distance between the two elastic bent rods and the chair back. The two elastic bent rods cooperate with the chair back, two joints and limit nuts to drive the two elastic belts to move, so that they contact the patient's shoulders, fix the inner walls of the two elastic bent rods with the patient's abdomen, and engage the electronic female buckle on one of the connecting blocks with the electronic buckle on the other connecting block, so as to connect and fix the two elastic bent rods, thereby limiting the patient's position and preventing the patient from falling down when getting off the wheelchair by himself;

[0016] (2) The patient is supported by a load-bearing plate, which cooperates with a weight sensor and a control switch to control the connectivity between the electronic sub-buckle and the electronic female buckle when subjected to force, so as to prevent the patient from loosening the connection by himself. The load-bearing plate moves downward under force and cooperates with a number of support rods to move. The support rods drive a number of push blocks to squeeze a number of springs in a number of mounting sleeves, thereby cushioning the patient when he sits down. When the wheelchair tends to tip backward, the fixing rod cooperates with the limit blocks and rubber blocks on the two mounting rings to contact the ground, thereby preventing the wheelchair from tipping backward. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is one of the structural diagrams of the utility model;

[0019] Figure 3It is a partial structural schematic diagram of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the auxiliary component structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the buffer component of the utility model.

[0023] In the figure: 1, wheelchair support; 11, seat plate; 12, baffle; 13, backrest; 14, control switch; 15, mounting hole; 16, armrest; 17, driving wheel; 18, driven wheel; 19, auxiliary frame; 110, pedal; 2, limit assembly; 21, bar block; 22, slide groove; 23, slider; 24, groove; 25, jack; 26, limit pin; 27, limit hole; 28, elastic bent rod; 29, connecting block; 210, elastic belt; 211, joint; 212, limit nut; 2 13. Moving block; 214. Moving slot; 215. Through hole; 216. Guide rod; 217. Electronic female buckle; 218. Electronic sub-buckle; 3. Auxiliary components; 31. Mounting block; 32. Fixing rod; 33. Locking nut; 34. Mounting ring; 35. Limit block; 36. Rubber block; 37. Through hole; 4. Buffer assembly; 41. Mounting sleeve; 42. Support rod; 43. Push block; 44. Spring; 45. Load-bearing plate; 46. Snap-in hole; 47. Weight sensor; 48. Sponge pad. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6 A fall-proof wheelchair comprises a wheelchair support 1, a seat plate 11 is arranged on the top of the wheelchair support 1, baffles 12 are arranged on both sides of the top of the seat plate 11, a seat back 13 is arranged on the other side of the top of the seat plate 11, and the opposite sides of the two baffles 12 are connected to the surface of the seat back 13 through a limiting component 2, an auxiliary component 3 is arranged at one end of the bottom of the wheelchair support 1, and a buffer component 4 is arranged on the surface of the top of the seat plate 11;

[0026] See also Figure 4, the limit assembly 2 includes two strip blocks 21 installed on the surfaces of opposite sides of the two baffles 12, and the two strip blocks 21 are provided with a slide groove 22 on the opposite sides. Slide blocks 23 are slidably connected on the inner walls of the two slide grooves 22, and one end of the two slide blocks 23 is provided with a groove 24. The inner wall of the groove 24 is provided with a socket 25. The inner wall of the socket 25 is engaged with a plurality of limit holes 27 provided on one side of the inner wall of the slide groove 22 through a limit pin 26. One side of the two slide blocks 23 is fixedly connected with an elastic bent rod 28, and the surfaces of the other ends of the two elastic bent rods 28 are provided with connecting blocks 29. The areas on the surfaces of the two elastic bent rods 28 near the connecting blocks 29 are fixedly connected with elastic bands 210, and the other ends of the two elastic bands 210 are provided with joints 211. The surfaces of the other ends of the two joints 211 are interlaced and connected with the surface of the chair back 13, and the other ends of the two joints 211 are threadedly connected with limit nuts 212.

[0027] During specific use: the two sliders 23 move in the two slide grooves 22, and the two sliders 23 drive the two groups of moving blocks 213 to slide on the surface of the guide rod 216 on the inner wall of the two groups of moving grooves 214, and limit the movement of the two sliders 23. When the position is appropriate, the two limit pins 26 are inserted into the corresponding two sockets 25 and the limit holes 27, so that the two sliders 23 and the two strip blocks 21 are limited and fixed, thereby adjusting the distance between the two elastic bent rods 28 and the chair back 13. The two elastic bent rods 28 cooperate with the chair back 13, the two joints 211 and the limit nuts 212 to drive the two elastic belts 210 to move, so that they contact the patient's shoulders, fix the inner walls of the two elastic bent rods 28 to the patient's abdomen, and engage the electronic female buckle 217 on one of the connecting blocks 29 with the electronic buckle 218 on the other connecting block 29, so that the two elastic bent rods 28 are connected and fixed, thereby limiting the patient and preventing the patient from falling when getting off the wheelchair by himself.

[0028] See also Figure 5 , the auxiliary component 3 includes two mounting blocks 31 installed at one end of the bottom of the wheelchair frame 1, and the opposite sides of the two mounting blocks 31 are inserted and connected with the fixing rod 32, and locking nuts 33 are provided at both ends of the fixing rod 32. Two mounting rings 34 are provided on the surface of the fixing rod 32, and one side of the bottom of the two mounting rings 34 is provided with a limit block 35, and the other ends of the two limit blocks 35 are fixedly connected with a rubber block 36.

[0029] When the wheelchair is in use, when it tends to fall backward, the fixing rod 32 cooperates with the limiting blocks 35 and the rubber blocks 36 on the two mounting rings 34 to contact the ground, thereby preventing the wheelchair from falling backward.

[0030] See also Figure 6The buffer assembly 4 includes a plurality of mounting sleeves 41 mounted on the top surface of the seat plate 11, the top ends of the plurality of mounting sleeves 41 are interspersed with support rods 42, the bottom ends of the plurality of support rods 42 are provided with push blocks 43, the sides of the plurality of push blocks 43 are slidably connected with the cavities provided on the inner walls of the plurality of mounting sleeves 41, the bottom ends of the plurality of push blocks 43 are fixedly connected with springs 44 provided on the bottom ends of the inner walls of the plurality of mounting sleeves 41, the top ends of the plurality of support rods 42 are snap-connected with a plurality of snap-in holes 46 provided on the bottom of the load-bearing plate 45, a weight sensor 47 is provided in the middle of the bottom of the load-bearing plate 45, a sponge pad 48 is provided below the weight sensor 47, the bottom of the sponge pad 48 is fixedly connected with the middle of the top of the seat plate 11, and the weight sensor 47 is electrically connected with the control switch 14 provided on the other side surface of the chair back 13.

[0031] During specific use: the load-bearing plate 45 supports the patient, and when it is subjected to force, it cooperates with the weight sensor 47 and the control switch 14 to control the connectivity between the electronic buckle 217 and the electronic female buckle 218 to prevent the patient from loosening the connection by himself. The load-bearing plate 45 moves downward under force and cooperates with a number of support rods 42 to move. The support rods 42 drive a number of push blocks 43 to squeeze a number of springs 44 in a number of mounting sleeves 41, thereby providing a buffer when the patient sits down.

[0032] See also Figure 4 A moving block 213 is provided at the top and bottom of the slider 23, and the surfaces of the two moving blocks 213 are slidably connected to the moving grooves 214 provided at the top and bottom of the inner wall of the slide groove 22. Through holes 215 are provided on both sides of the two moving blocks 213, and the inner walls of the two through holes 215 are slidably connected to the guide rods 216 provided on the inner walls of the two moving grooves 214.

[0033] During specific use, the two sliders 23 move in the two slide grooves 22 , and the two sliders 23 cooperate with the two groups of through holes 215 to drive the two groups of moving blocks 213 to slide on the surfaces of the guide rods 216 on the inner walls of the two groups of moving grooves 214 , thereby limiting the movement of the two sliders 23 .

[0034] See also Figure 3 Two mounting holes 15 are provided on the side of the surface of the chair back 13 , the inner walls of the two mounting holes 15 are interlaced and connected with the surfaces of the two joints 211 , and armrests 16 are provided on both sides of the top of the chair back 13 .

[0035] During specific use, the two joints 211 are inserted and connected with the two mounting holes 15 , and are fixed to the chair back 13 with the two limiting nuts 212 .

[0036] See also Figure 6 Through holes 37 are formed on the surfaces of the two mounting blocks 31 on opposite sides, and the inner walls of the two through holes 37 are interlaced and connected with the surfaces of the two ends of the fixing rod 32 .

[0037] When in use, the surfaces at both ends of the fixing rod 32 are inserted and connected with the two through holes 37 on the two mounting blocks 31 , so as to facilitate the installation and removal of the fixing rod 32 .

[0038] See also Figure 4 The two connecting blocks 29 have slots at opposite ends, and an electronic female buckle 217 is provided on the inner wall of one of the slots, and the electronic female buckle 217 is engaged and connected with the electronic buckle 218 on the inner wall of the other slot.

[0039] During specific use: the two elastic bent rods 28 cooperate with the chair back 13, the two joints 211 and the limiting nut 212 to drive the two elastic belts 210 to move, so that they contact the patient's shoulders, fix the inner walls of the two elastic bent rods 28 to the patient's abdominal position, and engage the electronic female buckle 217 on one of the connecting blocks 29 with the electronic buckle 218 on the other connecting block 29, so as to connect and fix the two elastic bent rods 28 to achieve the limitation of the patient.

[0040] See also Figure 1 Two driving wheels 17 are arranged on one side of the bottom of the wheelchair support 1 , and two driven wheels 18 are arranged on the other side of the bottom of the wheelchair support 1 .

[0041] When in use, the two driving wheels 17 and the driven wheels 18 at the bottom of the wheelchair support 1 facilitate the movement of the patient.

[0042] See also Figure 1 The sides of the wheelchair support 1 are fixedly connected to the tops of the two pedals 110 through two auxiliary frames 19 .

[0043] During specific use: the wheelchair support 1 cooperates with the two auxiliary frames 19 and the pedal 110 to support the patient's feet.

[0044] When in use, the two sliders 23 move in the two slide grooves 22, and the two sliders 23 drive the two groups of moving blocks 213 to slide on the surfaces of the guide rods 216 on the inner walls of the two groups of moving grooves 214, to limit the movement of the two sliders 23. When the position is appropriate, the two limit pins 26 are inserted into the corresponding two plug holes 25 and the limit holes 27, and the two sliders 23 and the two strip blocks 21 are limited and fixed, and the distance between the two elastic bent rods 28 and the chair back 13 is adjusted. The two elastic bent rods 28 cooperate with the chair back 13, the two joints 211 and the limit nuts 212 to drive the two elastic belts 210 to move, so that they contact the patient's shoulders, and the inner walls of the two elastic bent rods 28 are fixed to the patient's abdomen. The electronic female buckle 217 on one of the connecting blocks 29 is engaged with the electronic female buckle 218 on the other connecting block 29, and the two elastic bent rods 28 are connected and fixed, so as to limit the patient and prevent the patient from falling when getting off the wheelchair by himself.

[0045] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fall-proof wheelchair, characterized in that: The wheelchair frame (1) comprises a seat plate (11) at the top of the wheelchair frame (1), baffles (12) are provided on both sides of the top of the seat plate (11), a chair back (13) is provided on the other side of the top of the seat plate (11), the opposite sides of the two baffles (12) are connected to the surface of the chair back (13) through a limit assembly (2), an auxiliary assembly (3) is provided at one end of the bottom of the wheelchair frame (1), and a buffer assembly (4) is provided on the surface of the top of the seat plate (11); A limit assembly (2), the limit assembly (2) comprising two strip blocks (21) mounted on opposite sides of two baffles (12), a slide groove (22) being provided on opposite sides of the two strip blocks (21), a slider (23) being slidably connected to the inner wall of the two slide grooves (22), a groove (24) being provided at one end of the two sliders (23), a plug hole (25) being provided on the inner wall of the groove (24), the inner wall of the plug hole (25) being locked with a plurality of limit holes (27) provided on one side of the inner wall of the slide groove (22) through a limit pin (26) The two sliders (23) are connected together, one side of each of the two sliders (23) is fixedly connected with an elastic bent rod (28), the surfaces of the other ends of each of the two elastic bent rods (28) are provided with a connecting block (29), the areas of the surfaces of the two elastic bent rods (28) close to the connecting block (29) are fixedly connected with an elastic band (210), the other ends of each of the two elastic bands (210) are provided with a joint (211), the surfaces of the other ends of each of the two joints (211) are interlaced and connected with the surface of the chair back (13), and the other ends of each of the two joints (211) are threadedly connected with a limiting nut (212); The auxiliary component (3) comprises two mounting blocks (31) mounted at one end of the bottom of the wheelchair support (1), the two mounting blocks (31) are connected to the fixing rod (32) at opposite sides, the fixing rod (32) is provided with locking nuts (33) at both ends, the fixing rod (32) is provided with two mounting rings (34) on the surface, the bottom of the two mounting rings (34) is provided with a limit block (35) at one side, and the other ends of the two limit blocks (35) are fixedly connected with a rubber block (36).

2. The anti-fall wheelchair according to claim 1, characterized in that: The buffer assembly (4) comprises a plurality of mounting sleeves (41) mounted on the top surface of the seat plate (11), the top ends of the plurality of mounting sleeves (41) are interlaced with support rods (42), the bottom ends of the plurality of support rods (42) are provided with push blocks (43), the sides of the plurality of push blocks (43) are slidably connected with cavities provided on the inner walls of the plurality of mounting sleeves (41), the bottom ends of the plurality of push blocks (43) and the bottom ends of the inner walls of the plurality of mounting sleeves (41) are provided with springs (44) ) is fixedly connected, the top ends of several support rods (42) are snap-connected with several snap-in holes (46) provided at the bottom of the load-bearing plate (45), a weight sensor (47) is provided in the middle of the bottom of the load-bearing plate (45), a sponge pad (48) is provided below the weight sensor (47), the bottom of the sponge pad (48) is fixedly connected with the middle of the top of the seat plate (11), and the weight sensor (47) is electrically connected with a control switch (14) provided on the other side surface of the chair back (13).

3. The anti-fall wheelchair according to claim 1, characterized in that: The top and bottom of the slider (23) are each provided with a moving block (213), the surfaces of the two moving blocks (213) are slidably connected to moving grooves (214) provided at the top and bottom of the inner wall of the slide groove (22), through holes (215) are provided on both sides of the two moving blocks (213), and the inner walls of the two through holes (215) are slidably connected to guide rods (216) provided on the inner walls of the two moving grooves (214).

4. The anti-fall wheelchair according to claim 1, characterized in that: Two mounting holes (15) are provided on the sides of the surface of the chair back (13); the inner walls of the two mounting holes (15) are interlaced and connected with the surfaces of the two joints (211); and armrests (16) are provided on both sides of the top of the chair back (13).

5. The anti-fall wheelchair according to claim 1, characterized in that: The surfaces of the two mounting blocks (31) on the opposite sides are each provided with a through hole (37), and the inner walls of the two through holes (37) are interlaced and connected with the surfaces of the two ends of the fixing rod (32).

6. The anti-fall wheelchair according to claim 1, characterized in that: The two connecting blocks (29) are each provided with a slot at one opposite end, and an electronic female buckle (217) is provided on the inner wall of one of the connecting blocks, and the electronic female buckle (217) is engaged and connected with an electronic buckle (218) on the inner wall of the other slot.

7. The anti-fall wheelchair according to claim 1, characterized in that: Two driving wheels (17) are arranged on one side of the bottom of the wheelchair support (1), and two driven wheels (18) are arranged on the other side of the bottom of the wheelchair support (1).

8. The anti-fall wheelchair according to claim 1, characterized in that: The sides of the wheelchair support (1) are fixedly connected to the tops of the two pedals (110) via two auxiliary frames (19).

Images