Drawing type battery case mounting structure

Abstract

The utility model belongs to the technical field of electric wheelchairs, and particularly relates to a pull-out type battery case mounting structure. Comprising a storage battery frame body and a battery drawing plate used for placing a battery, the battery is bound on the battery drawing plate through a drawing belt, one side of the storage battery frame body is provided with a fixing frame, the fixing frame is provided with a bolt hole, one side of the battery drawing plate is provided with a mounting hole matched with the bolt hole, and bolts are inserted into the mounting hole and the bolt hole. The other side of the storage battery frame body is provided with a limiting piece for limiting the side, away from the mounting hole, of the battery drawing plate, and when the battery needs to be taken out, the bolt is screwed out of the fixing frame on one side of the storage battery frame body firstly, and then the limiting piece on the other side is operated, so that the limiting piece does not limit the battery drawing plate and the storage battery frame body; at the moment, the battery drawing plate can be drawn out from the storage battery frame body, and the battery can be taken out after the binding belt for binding the battery is loosened, so that the battery can be conveniently overhauled and replaced by maintenance personnel under the condition that the seat backrest system is not dismantled.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wheelchairs, and in particular relates to a pull-out type battery shell installation structure. Background Art

[0002] An electric wheelchair is an assistive mobility tool designed for people with limited mobility. It combines the convenience of a traditional wheelchair with the advantages of modern electric technology, allowing users to move more easily and autonomously. The main components of an electric wheelchair include batteries, motors, controllers, seat back systems, tires, and brake systems. The battery provides power for the electric wheelchair, usually using rechargeable lithium batteries or lead-acid batteries. The motor is the power source of the electric wheelchair, responsible for driving the wheelchair forward, backward, and turning. The controller is the "brain" of the electric wheelchair, which receives the user's operating instructions, controls the working status of the motor and battery, and realizes precise control of the wheelchair.

[0003] At present, the battery of an electric wheelchair is generally installed under the main frame by bolts. After the battery is installed, the battery pull-out plate and seat back system will be installed on it. This means that if the battery needs to be inspected or replaced, the entire seat back system must be removed before subsequent operations can be carried out. This operation is relatively cumbersome, which increases the workload and time of maintenance personnel to a certain extent and reduces the efficiency of inspecting or replacing batteries. Utility Model Content

[0004] In view of the above problems existing in the prior art, the purpose of the utility model is to provide a pull-out battery shell installation structure that can quickly disassemble and assemble the battery of the electric wheelchair and improve the efficiency of maintenance or replacement.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0006] The pull-out battery shell installation structure comprises a battery frame fixedly connected to the lower part of the main frame of the electric wheelchair and a battery pull-out plate slidably arranged on the battery frame for placing the battery, the battery is fixed to the battery pull-out plate by a strap, a fixing frame is arranged on one side of the battery frame, a bolt hole is arranged on the fixing frame, a mounting hole matching the bolt hole is arranged on one side of the battery pull-out plate, bolts are inserted into the mounting hole and the bolt hole, and a limiting member is arranged on the other side of the battery frame for limiting the battery pull-out plate in a direction away from the mounting hole;

[0007] The limiting member includes a limiting rod and a limiting frame, the limiting rod is fixedly connected to the limiting blocks on the side walls on both sides, a first through groove adapted to the shape of the limiting rod and the two limiting blocks is opened on the side wall of the battery pull-out plate, a second through groove adapted to the shape of the limiting rod and the two limiting blocks is opened on one side of the limiting frame, the second through groove is connected to a circular groove, the two limiting blocks and the limiting rod can both rotate in the circular groove, a spring is fixedly connected to the inner wall of the circular groove, the end of the spring is fitted with the inner wall of the circular groove, and two limiting grooves matching the shapes of the two limiting blocks are also opened on the inner wall of the circular groove.

[0008] Furthermore, one end of the limiting rod is fixedly connected with a knob.

[0009] Furthermore, two L-shaped guide rails are fixedly connected to both sides of the battery pull-out plate, and two movable shafts are rotatably connected to the inner walls on both sides of the battery frame. The bottom edge of the movable shaft is in contact with the top edge of the L-shaped guide rail, and the L-shaped guide rail limits the movable shaft.

[0010] Furthermore, heat dissipation holes are provided at the bottom and both sides of the battery frame.

[0011] Furthermore, a draw belt is fixedly connected to one side of the battery draw plate.

[0012] Furthermore, two limiting pins arranged opposite to each other are provided on the inner bottom wall of the battery frame, and two slots adapted to the limiting pins are provided on one side of the battery pull-out plate.

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

[0014] In this solution, the bolts can limit the battery pull-out plate, and the limiting piece on the other side also limits the battery pull-out plate to ensure the stability of the battery pull-out plate. When the battery needs to be removed, first unscrew the bolts from the fixed frame on one side of the battery frame, and then operate the limiting piece on the other side so that the limiting piece does not limit the battery pull-out plate and the battery frame. At this time, the battery pull-out plate can be pulled out of the battery frame, and the battery can be taken out after loosening the straps that bind the battery, which makes it convenient for maintenance personnel to inspect and replace the battery without removing the seat back system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall installation structure of this structure;

[0016] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0017] Figure 3 This is a schematic diagram of a pull-out state of the structure;

[0018] Figure 4 This is another schematic diagram of the pull-out state of the structure;

[0019] Figure 5 It is a cross-sectional schematic diagram of the limiting member in this structure;

[0020] Figure 6 This is a schematic diagram of the structure of the battery pull-out plate in this structure;

[0021] Figure 7 It is a cross-sectional schematic diagram of the limit frame in this structure;

[0022] Figure 8 It is a schematic diagram of the structure of the battery frame in this structure;

[0023] Fig. 9 It is a structural schematic diagram of the limit rod in this structure;

[0024] In the figure: 1-battery frame; 2-battery pull-out plate; 3-fixing frame; 4-bolt hole; 5-mounting hole; 6-bolt; 7-limiting frame; 8-limiting rod; 9-limiting block; 10-first through slot; 11-second through slot; 12-round slot; 13-spring; 14-limiting slot; 15-knob; 16-L-shaped guide rail; 17-movable shaft; 18-heat dissipation hole; 19-pull-out belt; 20-binding strap; 21-limiting nail; 22-slot. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with specific embodiments.

[0026] like Figure 1-Figure 9As shown, a pull-out battery shell mounting structure described in the utility model comprises a battery frame 1 fixedly connected to the lower part of the main frame of the electric wheelchair and a battery pull-out plate 2 slidably arranged on the battery frame 1 for placing the battery, the battery being bound to the battery pull-out plate 2 by a strap 20, a fixing frame 3 being arranged on one side of the battery frame 1, a bolt hole 4 being arranged on the fixing frame 3, a mounting hole 5 matching the bolt hole 4 being arranged on one side of the battery pull-out plate 2, a bolt 6 being inserted into the mounting hole 5 and the bolt hole 4, a limiting member being arranged on the other side of the battery frame 1 for limiting the side of the battery pull-out plate 2 away from the mounting hole 5, the limiting member comprising a limiting rod 8 and a limiting frame 7, the limiting rod 8 being relative to the two The side walls of the battery pull-out plate 2 are fixedly connected with limit blocks 9, and the side walls are provided with a first through groove 10 that is adapted to the shape of the limit rod 8 and the two limit blocks 9. One side of the limit frame 7 is provided with a second through groove 11 that is adapted to the shape of the limit rod 8 and the two limit blocks 9. One side of the second through groove 11 is connected with a circular groove 12, and the two limit blocks 9 and the limit rod 8 can rotate in the circular groove 12. A spring 13 is fixedly connected to one side of the inner wall of the circular groove 12, and the other end of the spring 13 is in contact with the inner wall of the circular groove 12. Two limit grooves 14 that match the shapes of the two limit blocks 9 are provided on the inner wall of the circular groove 12, and a knob 15 is fixedly connected to one end of the limit rod 8.

[0027] When the battery needs to be repaired or replaced, first unscrew the bolt 6 from the fixing frame 3, press the limit rod 8 on the other side of the battery frame 1 inward, one end of the limit rod 8 applies pressure to the spring 13 and compresses it, and the limit blocks 9 on both sides of the limit rod 8 slide out of the limit groove 14 and fit with the side wall of the circular groove 12. At this time, rotate the limit rod 8, and the limit block 9 rotates in the circular groove 12. Since the circular groove 12 is connected to the second through groove 11, the limit block 9 is stuck in the second through groove 11 after rotating a certain angle. The battery drawer plate 2 can be slid on the battery frame 1, which is convenient for maintenance or overhaul of the battery in the battery frame 1, and reduces the maintenance difficulty and cost to a certain extent. The combination of a bolt 6 connected at one end and a limit piece connected at the other end can not only ensure the strength and reliability of the connection, but also reduce the complexity of disassembly to a certain extent.

[0028] Two L-shaped guide rails 16 are fixedly connected to both sides of the battery pull-out plate 2, and two movable shafts 17 are rotatably connected to both sides of the inner wall of the battery frame 1. The bottom side of the movable shaft 17 is in contact with the upper side of the L-shaped guide rail 16, and the end of the L-shaped guide rail 16 can limit the movable shaft 17, thereby preventing the battery pull-out plate 2 from sliding out of one side of the battery frame 1.

[0029] Heat dissipation holes 18 are provided at the bottom and both sides of the battery frame 1 , and a drawer belt 19 is fixedly connected to one side of the battery drawer plate 2 , so that the user can draw the battery drawer plate 2 conveniently.

[0030] Two limiting pins 21 are arranged on the bottom wall inside the battery frame 1, and two slots 22 matching with the limiting pins 21 are opened on one side of the battery pull-out plate 2. When the battery pull-out plate 2 is pushed into the battery frame 1, the limiting pins 21 are just stuck in the slots 22.

Claims

1. A pull-out battery shell installation structure, characterized in that: The electric wheelchair comprises a battery frame fixedly connected to the lower part of the main frame of the electric wheelchair and a battery pull-out plate slidably arranged on the battery frame for placing batteries, wherein the batteries are fixed to the battery pull-out plate by straps, a fixing frame is arranged on one side of the battery frame, a bolt hole is arranged on the fixing frame, a mounting hole matching the bolt hole is arranged on one side of the battery pull-out plate, bolts are inserted into the mounting hole and the bolt hole, and a limiting member is arranged on the other side of the battery frame for limiting the battery pull-out plate in a direction away from the mounting hole; The limiting member includes a limiting rod and a limiting frame, the limiting rod is fixedly connected to the limiting blocks on the side walls on both sides, a first through groove adapted to the shape of the limiting rod and the two limiting blocks is opened on the side wall of the battery pull-out plate, a second through groove adapted to the shape of the limiting rod and the two limiting blocks is opened on one side of the limiting frame, the second through groove is connected to a circular groove, the two limiting blocks and the limiting rod can both rotate in the circular groove, a spring is fixedly connected to the inner wall of the circular groove, the end of the spring is fitted with the inner wall of the circular groove, and two limiting grooves matching the shapes of the two limiting blocks are also opened on the inner wall of the circular groove.

2. The pull-out battery shell installation structure according to claim 1, characterized in that: One end of the limiting rod is fixedly connected with a knob.

3. The pull-out battery case installation structure according to claim 1, characterized in that: Two L-shaped guide rails are fixedly connected to both sides of the battery pull-out plate, and two movable shafts are rotatably connected to the inner walls on both sides of the battery frame. The bottom edge of the movable shaft is in contact with the top edge of the L-shaped guide rail, and the L-shaped guide rail limits the movable shaft.

4. The pull-out battery case installation structure according to claim 1, characterized in that: The bottom and both sides of the battery frame are provided with heat dissipation holes.

5. The pull-out battery case installation structure according to claim 1, characterized in that: A drawing belt is fixedly connected to one side of the battery drawing plate.

6. The pull-out battery case installation structure according to claim 1, characterized in that: Two limiting pins arranged opposite to each other are arranged on the inner bottom wall of the battery frame, and two card slots matched with the limiting pins are arranged on one side of the battery pull-out plate.

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