Battery quick disassembly and assembly structure on electric wheelchair

Abstract

The utility model discloses a quick battery dismounting and mounting structure on an electric wheelchair, which belongs to the field of electric wheelchairs and comprises a support frame fixedly arranged at the bottom of a seat cushion of the wheelchair, a fixing component mounted on the support frame and a bearing mechanism mounted on the fixing component. The fixing assembly comprises a power connection box fixedly installed at the bottom of the supporting frame and guide frames symmetrically arranged on the power connection box, a socket is formed in the power connection box, and the bearing mechanism comprises a sliding rail frame and a supporting plate. The sliding rail frame is connected with the leveling plate and sleeved with the limiting sliding groove, so that the supporting plate does not deviate due to shaking when moving front and back, when a battery is replaced, only the positioning block needs to be detached from the limiting groove, the leveling plate is pushed to reset under the influence of the torsional spring, the supporting plate is pulled out at the moment, and the fixing assembly is taken down and replaced. When the fixing assembly is replaced and disassembled, long-time squatting calibration installation is not needed, the battery replacement mode is more convenient, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wheelchairs, in particular to a battery quick disassembly and assembly structure on an electric wheelchair. Background Art

[0002] With the improvement of my country's scientific and technological medical level, the auxiliary medical devices provided for injured patients are becoming more and more diversified. Wheelchairs, as medical devices for auxiliary rehabilitation of patients with leg injuries, are also becoming more and more advanced. At present, most types of wheelchairs are divided into manual wheelchairs and electric wheelchairs. Electric wheelchairs are modified and upgraded on the basis of traditional manual wheelchairs by adding power drive devices, intelligent control devices, batteries and other components.

[0003] The electric wheelchairs in the prior art are driven by electricity, so the supply of electricity is indispensable. Most of the electric wheelchairs on the market currently use rechargeable batteries as power sources. When replacing the batteries, the batteries need to be removed. The batteries of the electric wheelchairs are mainly arranged under the seat. This also means that when replacing, it is necessary to squat for a long time to disassemble and install the batteries. During installation, the batteries also need to be manually calibrated. The installation method is extremely inconvenient for users.

[0004] Therefore, the utility model provides a battery quick disassembly and assembly structure on an electric wheelchair to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a battery quick disassembly and assembly structure on an electric wheelchair, aiming to solve the problem of inconvenient disassembly and assembly of the existing electric wheelchair battery proposed in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery quick disassembly and assembly structure on an electric wheelchair, comprising a support frame fixedly arranged at the bottom of the seat cushion of the wheelchair, a fixing assembly and a bearing mechanism installed on the fixing assembly are installed on the support frame;

[0009] The fixing assembly includes a power connection box fixedly mounted on the bottom of the support frame and a guide frame symmetrically arranged on the power connection box, and the power connection box is provided with a socket;

[0010] The bearing mechanism includes a slide rail frame and a support plate, the slide rail frame is symmetrically arranged on the upper end of the support plate, and the support plate is slidably installed on the inner side of the guide frame through the slide rail frame, a push-flattening assembly is arranged on the end of the support plate away from the power box, a battery is overlapped on the upper end of the support plate, and the upper end of the support plate is fixedly connected to a limiting block; the two limiting blocks installed on the upper end of the support plate are symmetrically arranged for installation inside the I-shaped groove so that the support plate can remain stable when pulled back and forth, and the leveling plate is installed on the inner side of the slide rail frame to play a role in horizontal calibration of the fixed assembly; the power box is installed under the seat cushion by rivets, and the I-shaped groove opened in the power box is slidably connected to the limit block on the upper end of the support plate, and at the same time, the slide rail frame is fixed to the leveling plate and sleeved on the limiting groove.

[0011] Preferably, the push-flattening assembly includes a push-flat plate, a hinge block is installed on the front of the support plate, the hinge block and the push-flat plate are hinged by a torsion spring, and both ends of the push-flat plate are fixedly connected with positioning blocks; when the push-flat plate is in a flat state, the torsion spring is in an unstressed state, and after being stressed, the push-flat plate will rotate to fit with the front of the fixed assembly and provide secondary calibration for the fixed assembly.

[0012] Preferably, a cavity is provided inside the positioning block, a spring is installed inside the cavity, a movable block is fixedly connected to the front end of the spring, and the movable block is slidably connected to the cavity.

[0013] Preferably, a limiting slide groove is provided on the guide frame, the limiting slide groove is slidably mounted on the slide rail frame, and the inner side of the guide frame is in contact with the leveling plate. An I-shaped groove is provided at the bottom of the guide frame, and the limiting block is slidably connected to the I-shaped groove.

[0014] Preferably, a limiting groove is provided at the front end of the guide frame, a reset block is movably connected to the side of the limiting groove, and a chamfer is provided on the surface of the reset block.

[0015] Preferably, a leveling plate is installed on the inner side of the slide rail frame, and one side of the leveling plate is in contact with the guide frame.

[0016] Preferably, the positioning block is matched with the limiting groove, and a buffer pad is provided on one side of the pushing plate close to the fixing assembly.

[0017] (III) Beneficial effects

[0018] The battery quick disassembly and assembly structure on the electric wheelchair is provided with a bearing mechanism, a limit slide groove and an I-shaped groove are provided below the guide frame, and the limit block on the support plate is installed inside the I-shaped groove for the support plate to slide back and forth. At the same time, the slide rail frame is connected with the calibration plate and is sleeved with the limit slide groove, so that the support plate will not deviate due to shaking when moving back and forth. When replacing the battery, it is only necessary to separate the positioning block from the limit groove, and the plate is pushed back to its original position under the influence of the torsion spring. At this time, the support plate is pulled outward, and the fixed component is removed and replaced. When replacing and disassembling the fixed component, there is no need to squat for a long time for calibration and installation. The battery replacement method is more convenient and simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a battery quick disassembly and assembly structure on an electric wheelchair;

[0020] Figure 2 This is a schematic diagram of the bottom structure of the wheelchair body;

[0021] Figure 3 This is a schematic diagram of the structure of the slide rail rack in the storage state;

[0022] Figure 4 Schematic diagram of the fixed component structure

[0023] Figure 5 It is a schematic diagram of the structure of the power box;

[0024] Figure 6 is a schematic diagram of the support plate structure;

[0025] Figure 7 This is a schematic diagram of the structure after the push plate is adjusted;

[0026] Figure 8 It is a schematic diagram of the cross-sectional structure of the positioning block.

[0027] In the figure:

[0028] 1. Seat cushion;

[0029] 2. Support frame;

[0030] 3. Electrical box;

[0031] 31. Socket;

[0032] 4. Carrying mechanism;

[0033] 41. Slide rail frame; 42. Push plate; 43. Support plate; 44. Articulated block; 45. Positioning block; 46. Movable block; 47. Leveling plate; 48. Limiting block; 49. Spring;

[0034] 5. Battery;

[0035] 6. Fix the components;

[0036] 61. Guide frame; 62. Limiting groove; 63. Reset block; 64. Limiting slide groove; 65. I-shaped groove; DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0038] The utility model provides a battery quick disassembly and assembly structure for an electric wheelchair. Figure 1-8 As shown, the battery quick disassembly and assembly structure on the electric wheelchair includes a support frame 2 fixedly arranged at the bottom of the wheelchair seat cushion 1, and a fixing component 6 and a bearing mechanism 4 installed on the fixing component 6 are installed on the support frame 2;

[0039] The fixing assembly 6 includes a power connection box 3 fixedly mounted on the bottom of the support frame 2 and a guide frame 61 symmetrically arranged on the power connection box 3, and a socket 31 is arranged on the power connection box 3;

[0040] The bearing mechanism 4 includes a slide rail frame 41 and a support plate 43. The slide rail frame 41 is symmetrically arranged on the upper end of the support plate 43, and the support plate 43 is slidably installed on the inner side of the guide frame 61 through the slide rail frame 41. A push-flattening assembly is provided at one end of the support plate 43 away from the power connection box 3. The upper end of the support plate 43 is overlapped with the battery 5, and the upper end of the support plate 43 is fixedly connected to the limit block 48.

[0041] Specifically, the two limit blocks 48 installed on the upper end of the support plate 43 are arranged symmetrically, and the slide rail frame 41 is in an inverted L shape. It mainly serves to form an empty groove after connecting with the correction plate 47. The empty groove is used to set the limit slide groove 64. The limit block 48 is used to be installed in the I-shaped groove 65, so that the support plate 43 can remain stable when pulled forward and backward, and plays a role in horizontal calibration of the fixed component 6.

[0042] The pushing assembly includes a pushing plate 42, a hinge block 44 is installed on the front of the support plate 43, the hinge block 44 and the pushing plate 42 are hinged by a torsion spring, both ends of the pushing plate 42 are fixedly connected with positioning blocks 45, a cavity is opened inside the positioning block 45, a spring 49 is installed inside the cavity, a movable block 46 is fixedly connected to the front end of the spring 49, and the movable block 46 is slidably connected to the cavity.

[0043] Furthermore, the hinge block 44 is hinged to the push plate 42 by a torsion spring. When the push plate 42 is in a flat state, the torsion spring is in an unstressed state. After being stressed, the push plate 42 will rotate to fit the front of the fixed component 6 and provide a secondary calibration for the fixed component 6. The calibration is used for the interface connection distance between the fixed component 6 and the electrical box 3 to avoid excessive inward pushing force during electrical connection, which may cause damage to the battery.

[0044] A limiting groove 64 is provided on the guide frame 61, and the limiting groove 64 is slidably sleeved with the slide rail frame 41, and the inner side of the guide frame 61 is in contact with the leveling plate 47. An I-shaped groove 65 is provided at the bottom of the guide frame 61, and the limiting block 48 is slidably connected to the I-shaped groove 65. A limiting groove 62 is provided at the front end of the guide frame 61, and a reset block 63 is movably connected to the side of the limiting groove 62, and a chamfer is provided on the surface of the reset block 63. The positioning block 45 is adapted to the limiting groove 62, and a buffer pad is provided on the side of the push plate 42 close to the fixed component 6.

[0045] Furthermore, when the support plate 43 slides forward and backward under the power box 3, the fixing component 6 supported on the support plate 43 can be moved forward and backward synchronously. When removing the fixing component 6, when holding the support plate 43 and pulling it out, one hand needs to press the top of the fixing component 6 at the same time, so that the support plate 43 and the fixing component 6 can be pulled out synchronously.

[0046] When in use, the user presses the two reset blocks 63 with both hands at the same time, and the movable block 46 is squeezed by the reset block 63 and reset to the cavity of the positioning block 45. At this time, the push plate 42 is reset by the tension of the torsion spring, and the support plate 43 is pulled outward. The fixing component 6 is overlapped on the top of the support plate 43, and the staff pulls out the fixing component 6 and replaces the new fixing component 6 and re-places it on the top of the support plate 43. It is restricted by the two alignment plates 47. When the fixing component 6 is placed between the two alignment plates 47, the plug-in end on the back of the fixing component 6 is connected to the power supply. The power ports on the box 3 are aligned with each other. At this time, the pushing plate 42 is pushed toward the fixed component 6, and the supporting plate 43 is pushed toward the power box 3 until it is pushed to the end. At this time, the positioning block 45 is inserted into the inside of the limiting groove 62. At the same time, since the surface of the movable block 46 is chamfered, when the movable block 46 passes the front end of the limiting groove 62, the movable block 46 is squeezed into the cavity of the positioning block 45. When the movable block 46 moves to the reset block 63, the reset block 63 is pushed outward. At this time, it is fixed, the installation method is simple, and there is no need to squat for a long time when replacing the fixed component 6.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery quick disassembly and assembly structure for an electric wheelchair, comprising a support frame (2) fixedly arranged at the bottom of a seat cushion (1) of the wheelchair, a fixing component (6) being mounted on the support frame (2) and a bearing mechanism (4) mounted on the fixing component (6); Features: The fixing assembly (6) comprises an electrical connection box (3) fixedly mounted on the bottom of the support frame (2) and a guide frame (61) symmetrically arranged on the electrical connection box (3); the electrical connection box (3) is provided with a socket (31); The bearing mechanism (4) comprises a slide rail frame (41) and a support plate (43); the slide rail frame (41) is symmetrically arranged on the upper end of the support plate (43); the support plate (43) is slidably mounted on the inner side of the guide frame (61) through the slide rail frame (41); a push-flattening assembly is arranged at one end of the support plate (43) away from the power connection box (3); a storage battery (5) is overlapped on the upper end of the support plate (43); and a limit block (48) is fixedly connected to the upper end of the support plate (43).

2. The battery quick disassembly and assembly structure for an electric wheelchair according to claim 1, characterized in that: The push plate assembly comprises a push plate (42), a hinge block (44) is installed on the front of the support plate (43), the hinge block (44) is hinged to the push plate (42) through a torsion spring, and both ends of the push plate (42) are fixedly connected with positioning blocks (45).

3. The battery quick disassembly and assembly structure for an electric wheelchair according to claim 2, characterized in that: A cavity is provided inside the positioning block (45), a spring (49) is installed inside the cavity, a movable block (46) is fixedly connected to the front end of the spring (49), and the movable block (46) is slidably connected to the cavity.

4. The battery quick disassembly and assembly structure for an electric wheelchair according to claim 3, characterized in that: The guide frame (61) is provided with a limit slide groove (64), the limit slide groove (64) is slidably sleeved with the slide rail frame (41), and the inner side of the guide frame (61) is in contact with the leveling plate (47). An I-shaped groove (65) is provided below the guide frame (61), and the limit block (48) is slidably connected to the I-shaped groove (65).

5. The battery quick disassembly and assembly structure for an electric wheelchair according to claim 4, characterized in that: A limiting groove (62) is provided at the front end of the guide frame (61), a side of the limiting groove (62) is movably connected to a reset block (63), and a chamfer is provided on the surface of the reset block (63).

6. The battery quick disassembly and assembly structure for an electric wheelchair according to claim 5, characterized in that: A leveling plate (47) is installed on the inner side of the slide rail frame (41), and one side of the leveling plate (47) is in contact with the guide frame (61).

7. The battery quick disassembly and assembly structure for an electric wheelchair according to claim 5, characterized in that: The positioning block (45) is matched with the limiting groove (62), and a buffer pad is provided on one side of the pushing plate (42) close to the fixing assembly (6).

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