Battery mounting structure for electric wheelchair

Abstract

The utility model discloses a battery mounting structure for an electric wheelchair, which is characterized in that the lower end of a battery body is inserted into a base, the upper end of the battery body is connected with a lock catch seat, a lock head is hinged on the lock catch seat, the lock head is connected with the lock catch seat through a torsion spring, a button for controlling the lock head slides in the lock catch seat, and a spring is arranged between the button and the lock catch seat. An avoiding groove corresponding to the first linkage part is formed in the button, and an arc-shaped table is arranged at the lower end of the avoiding groove. When the battery body is mounted, the bottom of the battery body is placed on the base, then the battery body is pushed, the battery body can be locked by the connecting lock catch, and when the battery body is dismounted, the button is pressed by one hand, and the battery body can be directly lifted by the other hand, so that the battery body is simpler and more convenient to dismount and mount; and the risk of clamping hands is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery installation for electric wheelchairs, and particularly relates to a battery installation structure for an electric wheelchair. Background Art

[0002] A wheelchair is a chair equipped with wheels to help replace walking, and is an important mobile tool for the wounded, sick, and disabled for home rehabilitation, transportation, medical treatment, and outdoor activities. Wheelchairs not only meet the transportation needs of the physically disabled and the mobility-impaired, but more importantly, they facilitate the movement and care of patients by their family members, enabling patients to exercise their bodies and participate in social activities with the help of wheelchairs.

[0003] For an electric wheelchair, the battery is one of the essential components. In some existing electric wheelchairs, the battery is installed on the backrest bracket of the wheelchair through a support frame. When installing the battery, it is necessary to first align the battery with the plug below and the protruding position on the support frame, and then push the battery in to complete the installation, resulting in very inconvenient disassembly and assembly of the battery; in addition, the distance between the upper end of the battery and the seat frame is relatively close, and it is easy to pinch the hand when installing the battery. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a battery installation structure for an electric wheelchair to solve the problems raised in the above background art. A battery installation structure for an electric wheelchair provided by the utility model has the characteristics of being convenient for quickly disassembling and assembling the battery.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A battery installation structure for an electric wheelchair includes a base, a battery body, and a connection lock. Among them, the base is installed on the lower crossbar of the backrest, the connection lock is installed on the upper crossbar of the backrest, the lower end of the battery body is inserted into the base, the upper end of the battery body is connected with a lock seat, and a lock groove corresponding to the lock hook part is provided on the lock seat. The connection lock includes a lock seat, a lock head is hinged on the lock seat, and the lock head and the lock seat are also connected by a torsion spring. The lock head includes a hinge part, and a first linkage part, a lock hook part, and a second linkage part are respectively provided on the circumference of the hinge part. Among them, the lock hook part and the second linkage part are located on the side close to the battery body, and the first linkage part is located on the other side. A button for controlling the lock head slides in the lock seat, a spring is provided between the button and the lock seat, an avoidance groove corresponding to the first linkage part is provided on the button, and an arc-shaped platform is provided at the lower end of the avoidance groove.

[0006] In order to achieve electrical connection and supply power to the electrical components of the electric wheelchair, further, connection seats are also connected to the upper crossbar and the lower crossbar of the backrest, and plugs are installed on the connection seats.

[0007] In order to achieve the hinge connection between the lock head and the lock buckle seat, further, the hinge part and the lock buckle seat are connected by a connecting pin, and the torsion spring is sleeved on the connecting pin.

[0008] In order to guide and limit the movement of the button, further, the button includes a sleeve body and an insertion part. Among them, U-shaped grooves are respectively arranged on both sides of the sleeve body, elastic blocks are formed on both sides of the sleeve body, a limit pin is connected to the lower end of the elastic block, a limit groove corresponding to the limit pin is arranged on the lock buckle seat, and a guiding inclined groove corresponding to the limit pin is arranged on the upper edge of the lock buckle seat.

[0009] In order to achieve the quick positioning and limit connection between the bottom of the battery body and the base, further, a connecting groove is arranged at the bottom of the base, two clamping blocks are arranged above the base, and a clamping groove corresponding to the clamping blocks is arranged at the bottom of the battery body.

[0010] In order to limit the battery body, further, a limit block is arranged on the outer side of one of the clamping blocks.

[0011] In the present utility model, further, a method for realizing a battery installation structure for an electric wheelchair includes the following steps:

[0012] (1) The limit block on the base cooperates with the clamping groove at the bottom of the battery body to realize the limit installation of the lower part of the battery body;

[0013] (2) The locking hook part of the lock head is embedded into the lock groove of the lock seat to realize the limit installation of the upper part of the battery body;

[0014] (3) The plug is inserted into the socket of the battery body to supply power to the devices of the electric wheelchair;

[0015] (4) By pressing the button, under the action of the torsion spring, the locking hook part of the lock head is separated from the lock seat to realize unlocking.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. When installing the battery body in the present utility model, only need to place the bottom of the battery body on the base, and then push the battery body to complete the locking of the battery body by the connection lock. The button rebounds to ensure that the fixation of the battery body is absolutely not loose, meeting the use requirements with the smallest volume. When disassembling, only need to press the button with one hand and directly lift the battery body with the other hand, making the disassembly and assembly of the battery body simpler and more convenient, and avoiding the risk of pinching hands;

[0018] 2. The present utility model realizes the quick positioning and limit connection between the bottom of the battery body and the base through the cooperation of the clamping blocks and the clamping grooves, with a simple structure and low production cost, making the disassembly and assembly between the battery body and the base more convenient;

[0019] 3. The utility model realizes the rapid positioning of the battery body and the base through the cooperation of the clamping block and the clamping groove, without the need to align the plug and the socket again, making the installation of the battery body more convenient. Description of the Drawings

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is an exploded structural schematic diagram of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the connection lock of the utility model;

[0023] Figure 4 It is an exploded structural schematic diagram of the connection lock of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the button of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the lock head of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the base of the utility model;

[0027] Figure 8 It is a structural schematic diagram of the battery body of the utility model;

[0028] Figure 9 It is a structural schematic diagram of the lock seat of the utility model;

[0029] Figure 10 It is a structural schematic diagram of the connection seat of the utility model;

[0030] Figure 11 It is a sectional structural schematic diagram of the state of the connection lock when the battery body of the utility model is not installed;

[0031] Figure 12 It is a sectional structural schematic diagram of the state of the connection lock after the battery body of the utility model is installed;

[0032] Figure 13 It is a structural schematic diagram of the overall installation of the utility model and the wheelchair;

[0033] In the figure: 1. Cross bar on the backrest; 2. Lower cross bar of the backrest; 3. Base; 31. Connecting groove; 32. Clamping block; 33. Limiting block; 4. Connecting seat; 41. Plug; 5. Battery body; 51. Lock seat; 52. Card slot; 53. Lock groove; 6. Connecting lock buckle; 7. Lock buckle seat; 71. Limiting groove; 72. Guide inclined groove; 73. Guide limiting groove; 8. Button; 81. Avoidance groove; 82. Arc-shaped platform; 83. Insertion part; 84. Sleeve body; 85. Elastic block; 86. U-shaped groove; 87. Limiting pin; 88. Guide limiting block; 9. Lock head; 91. First linkage part; 92. Lock hook part; 93. Second linkage part; 94. Hinge part; 10. Torsion spring; 11. Spring; 12. Connecting pin. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] Please refer to Figures 1-13 , the present invention provides the following technical solutions: A battery installation structure for an electric wheelchair, including a base 3, a battery body 5, and a connecting lock buckle 6. Among them, the base 3 is installed on the lower cross bar 2 of the backrest, the connecting lock buckle 6 is installed on the upper cross bar 1 of the backrest, the lower end of the battery body 5 is inserted into the base 3, the upper end of the battery body 5 is connected with a lock seat 51, a lock groove 53 is provided on the lock seat 51, the connecting lock buckle 6 includes a lock buckle seat 7, a lock head 9 is hinged on the lock buckle seat 7, and the lock head 9 and the lock buckle seat 7 are also connected by a torsion spring 10. The lock head 9 includes a hinge part 94, and a first linkage part 91, a lock hook part 92, and a second linkage part 93 are respectively provided on the circumference of the hinge part 94. Among them, the lock hook part 92 and the second linkage part 93 are located on the side close to the battery body 5, and the first linkage part 91 is located on the other side. A button 8 for controlling the lock head 9 slides in the lock buckle seat 7, a spring 11 is provided between the button 8 and the lock buckle seat 7, the elastic force of the spring 11 is less than the torsion force of the torsion spring 10, and an avoidance groove 81 corresponding to the first linkage part 91 is provided on the button 8, and an arc-shaped platform 82 is provided at the lower end of the avoidance groove 81.

[0037] When the connecting lock buckle 6 of the present invention is in the unlocked state, the button 8 is embedded in the lock buckle seat 7, and the first linkage part 91 is pressed on the arc-shaped platform 82 under the action of the torsion spring 10, preventing the spring 11 from pushing the button 8 and performing basic limitation on the button 8;

[0038] When installing the battery body 5, place the bottom of the battery body 5 on the base 3. The limit of the bottom of the battery body 5 is realized by the cooperation of the clamping block 32 and the clamping groove 52. Then push the battery body 5. At this time, the back of the battery body 5 contacts the second linkage part 93 first, driving the lock head 9 to rotate (as shown in the attached Figure 11 direction), so that the lock hook part 92 is hooked into the lock groove 53 of the lock seat 51. At this time, the first linkage part 91 is separated from the arc-shaped table 82, and the button 8 is reset upward under the action of the spring 11. The rebound of the button 8 ensures that the fixation of the battery body 5 is absolutely not loose, meeting the use requirements with the smallest volume. The side wall of the button 8 abuts against the first linkage part 91, and the second linkage part 93 abuts against the battery body 5 for double limit. The two sides of the lock hook part 92 cooperate with the lock seat 51 to limit the left and right shaking of the battery body 5, completing the locking;

[0039] When disassembling the battery body 5, press the button 8 downward. At this time, the first linkage part 91 corresponds to the avoidance groove 81 on the button 8, leaving a rotation space for the first linkage part 91. At this time, pull the battery body 5 backward. Under the action of the torsion spring 10, the lock head 9 rotates (in the opposite direction of the attached Figure 11 direction), and the lock hook part 92 follows the rotation and lifts to separate from the lock groove 53, realizing unlocking. Then directly lift the battery body 5.

[0040] By adopting the above technical solution, when installing the battery body 5 of the present utility model, only need to place the bottom of the battery body 5 on the base 3, and then push the battery body 5 to complete the locking of the connection lock 6 to the battery body 5. When disassembling, only need to press the button 8 with one hand, and the other hand can directly lift the battery body 5, making the disassembly and assembly of the battery body 5 simpler and more convenient, and avoiding the risk of pinching hands.

[0041] Specifically, a connection seat 4 is further connected to the upper cross bar 1 and the lower cross bar 2 of the backrest. A plug 41 is installed on the connection seat 4, and the plug 41 is electrically connected to the electrical components of the electric wheelchair.

[0042] By adopting the above technical solution, the plug 41 is inserted into the socket on the battery body 5 to realize electrical connection.

[0043] Specifically, the hinge part 94 and the lock seat 7 are connected by a connecting pin 12, and the torsion spring 10 is sleeved on the connecting pin 12.

[0044] By adopting the above technical solution, the hinge of the lock head 9 and the lock seat 7 is realized.

[0045] Embodiment 2

[0046] The difference between this embodiment and Embodiment 1 is as follows: Specifically, a connecting groove 31 is provided at the bottom of the base 3 for connecting with the lower cross bar 2 of the backrest. Two clamping blocks 32 are provided above the base 3, and a clamping groove 52 corresponding to the clamping blocks 32 is provided at the bottom of the battery body 5.

[0047] By adopting the above technical solution, the quick positioning and limit connection between the bottom of the battery body 5 and the base 3 are realized through the cooperation of the clamping blocks 32 and the clamping grooves 52. The structure is simple and the production cost is low, making the disassembly and assembly between the battery body 5 and the base 3 more convenient.

[0048] Embodiment 3

[0049] The difference between this embodiment and Embodiment 1 is as follows: Specifically, one clamping block 32 corresponds to the connecting seat 4, and a limit block 33 is provided on the outer side of the other clamping block 32.

[0050] By adopting the above technical solution, the battery body 5 is limited.

[0051] Embodiment 4

[0052] The difference between this embodiment and Embodiment 1 is as follows: Specifically, the button 8 includes a sleeve body 84 and an insertion part 83. The avoidance groove 81 and the arc-shaped platform 82 are arranged on the side surface of the sleeve body 84. Among them, U-shaped grooves 86 are respectively provided on both sides of the sleeve body 84, and elastic blocks 85 are formed on both sides of the sleeve body 84. A limit pin 87 is connected to the lower end of the elastic block 85. A limit groove 71 corresponding to the limit pin 87 is provided on the lock seat 7, and a guiding inclined groove 72 corresponding to the limit pin 87 is provided on the upper edge of the lock seat 7.

[0053] By adopting the above technical solution, the movement of the button 8 is guided and limited through the cooperation of the limit pin 87 and the limit groove 71; by utilizing the deformation ability of the elastic block 85 and the cooperation of the guiding inclined groove 72, the sleeve body 84 is inserted into the lock seat 7, and then the insertion part 83 is inserted into the sleeve body 84. The connection between the sleeve body 84 and the insertion part 83 is realized by screwing, making the assembly of the button 8 and the lock seat 7 more convenient and avoiding the problem of inconvenient installation by using a metal pin passing through from head to tail in the past.

[0054] Specifically, guiding and limiting blocks 88 are respectively further provided on both sides of the sleeve body 84, and guiding and limiting grooves 73 corresponding to the guiding and limiting blocks 88 are provided in the lock seat 7.

[0055] By adopting the above technical solution, the movement of the button 8 is further guided and limited through the cooperation of the guiding and limiting blocks 88 and the guiding and limiting grooves 73, avoiding the shaking of the button 8 relative to the lock seat 7.

[0056] Embodiment 5

[0057] Furthermore, a method for implementing a battery installation structure for an electric wheelchair according to the present utility model includes the following steps:

[0058] (1) The limit block 33 on the base 3 cooperates with the card slot 52 at the bottom of the battery body 5 to achieve the limit installation of the lower part of the battery body 5;

[0059] (2) The locking hook portion 92 of the lock head 9 is embedded into the lock slot 53 of the lock seat 51 to achieve the limit installation of the upper part of the battery body 5;

[0060] (3) The plug 41 is inserted into the socket of the battery body 5 to supply power to the devices of the electric wheelchair;

[0061] (4) By pressing the button 8, under the action of the torsion spring 10, the locking hook portion 92 of the lock head 9 is separated from the lock seat 51 to achieve unlocking.

[0062] In summary, when installing the battery body 5 according to the present utility model, only need to place the bottom of the battery body 5 on the base 3, and then push the battery body 5 to complete the locking of the connecting lock 6 to the battery body 5. The button 8 rebounds to ensure that the fixation of the battery body 5 is absolutely not loose, meeting the use requirements with the smallest volume. When disassembling, only need to press the button 8 with one hand and directly lift the battery body 5 with the other hand, making the disassembly and assembly of the battery body 5 simpler and more convenient, and avoiding the risk of pinching hands; the present utility model realizes the quick positioning and limit connection between the bottom of the battery body 5 and the base 3 through the cooperation of the card block 32 and the card slot 52, with a simple structure and low production cost, making the disassembly and assembly between the battery body 5 and the base 3 more convenient. The present utility model realizes the quick positioning of the battery body 5 and the base 3 through the cooperation of the card block 32 and the card slot 52, without the need to align the positions of the plug 41 and the socket again, making the installation of the battery body 5 more convenient.

[0063] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A battery installation structure for an electric wheelchair, characterized in that: It includes a base, a battery body and a connection buckle. Among them, the base is installed on the lower crossbar of the backrest, the connection buckle is installed on the upper crossbar of the backrest, the lower end of the battery body is inserted into the base, a lock seat is connected to the upper end of the battery body, the connection buckle includes a buckle seat, a lock head is hinged on the buckle seat, and the lock head and the buckle seat are also connected by a torsion spring. The lock head includes a hinge part, a first linkage part, a lock hook part and a second linkage part are respectively arranged on the circumference of the hinge part. Among them, the lock hook part and the second linkage part are located on the side close to the battery body, and the first linkage part is located on the other side. A button for controlling the lock head slides in the buckle seat.

2. The battery mounting structure for an electric wheelchair according to claim 1, wherein: Connection seats are also connected to the upper crossbar and the lower crossbar of the backrest, and plugs are installed on the connection seats.

3. The battery mounting structure for an electric wheelchair according to claim 1, characterized in that: The hinge part and the buckle seat are connected by a connecting pin, and the torsion spring is sleeved on the connecting pin.

4. A battery mounting structure for an electric wheelchair according to claim 1, characterized in that: A spring is arranged between the button and the buckle seat.

5. The battery mounting structure for an electric wheelchair according to claim 1, characterized in that: The button includes a sleeve body and an insertion part. Among them, U-shaped grooves are respectively arranged on both sides of the sleeve body, elastic blocks are formed on both sides of the sleeve body, a limit pin is connected to the lower end of the elastic block, a limit groove corresponding to the limit pin is arranged on the buckle seat, and a guide inclined groove corresponding to the limit pin is arranged on the upper edge of the buckle seat.

6. The battery mounting structure for an electric wheelchair according to claim 1, characterized in that: An avoidance groove corresponding to the first linkage part is arranged on the button, and an arc-shaped platform is arranged at the lower end of the avoidance groove.

7. The battery mounting structure for an electric wheelchair according to claim 1, wherein: A lock groove corresponding to the lock hook part is arranged on the lock seat.

8. The battery mounting structure for an electric wheelchair according to claim 1, wherein: A connection groove is arranged at the bottom of the base, two clamping blocks are arranged above the base, and clamping grooves corresponding to the clamping blocks are arranged at the bottom of the battery body.

9. A battery mounting structure for an electric wheelchair according to claim 8, characterized in that: A limit block is arranged on the outside of one of the clamping blocks.

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