A battery case device

Abstract

The utility model discloses a battery box device, the outer layer battery box of this product is equipped with the box cavity of open cavity mouth, and the inner layer battery box is installed in the box cavity through the cavity mouth and can be inserted and removed, and the top of the inner layer battery box is connected with a handle, and the side upper wall of the outer layer battery box is equipped with a lock hole, the inside of the handle side is equipped with longitudinal hole, and the top of the longitudinal hole is provided with an orifice, the inside of the inner upper corner of the side of the inner layer battery box is equipped with a horizontal lock piece cavity, the side upper wall of the inner layer battery box is equipped with a lock piece installation through -hole, and the lock piece installation through -hole is horizontally communicated with the horizontal lock piece cavity, and the horizontal lock piece cavity and the lock piece installation through -hole are horizontally installed with elastic lock piece device together, and the longitudinal hole, the orifice and the horizontal lock piece cavity are vertically installed with elastic push button device together, and the elastic push button device is used for adjusting the telescopic of elastic lock piece device, so as to adjust the insertion and exit of elastic lock piece device in the lock hole, and the product structure is convenient to lock, unlock, stable and firm after locking, and easy to install and operate.

Description

Technical Field

[0001] This utility model relates to components for electric wheelchairs and mobility scooters, and more particularly to a battery box device for use in electric wheelchairs and mobility scooters. Background Technology

[0002] For example, Chinese Patent Publication No. CN216773413U discloses a multifunctional battery box for wheelchairs, including a shell (1), with a box body (3) slidably connected to the inner wall of the shell (1); the box body (3) and the shell (1) are connected by an elastically telescopic locking assembly (32); the outer wall of the box body (3) is provided with an unlocking button (5) for controlling the locking or unlocking state of the locking assembly (32). The locking assembly (32) includes a frame (321) set on the box body (3), and a spring (322) is provided on the inner wall of the frame (321), and the spring (322) is rotatably connected to a locking rod (324) through a pin (323). The free end of the locking rod (324) is rotatably connected to a hemispherical locking head (325) through a pin (323). The inner wall of the shell (1) is provided with a locking groove (11) adapted to the locking head (325). The box body (3) is provided with a limiting plate (31), and the inner wall of the outer shell (1) is provided with a limiting groove (12) that matches the limiting plate (31). The outer wall of the box body (3) is provided with a power indicator plate (4), a switch button (6) and a charging interface (7). A fixing bracket (2) is provided at the bottom corner of the outer shell (1). The horizontal end of the fixing bracket (2) is provided with a recess (21), and the inner wall of the recess (21) is provided with a fixing hole (22).

[0003] The above-mentioned multi-functional battery box has a troublesome locking and unlocking structure, a complex battery box design, no handle, and is inconvenient to take out the box (3) for charging.

[0004] Example 2: Chinese Patent Publication No. CN216148394U discloses a detachable battery box for a wheelchair, including a battery box shell, a positioning and mounting structure, and a battery box core structure. The positioning and mounting structure is installed on the outer side wall of the battery box shell; the battery box core structure is installed inside the battery box shell; the positioning and mounting structure consists of a top plate, a spring switch, a locking block, and mounting strips; mounting strips are installed on the left and right side walls of the battery box shell; the mounting strips are integrally formed with the battery box shell; a top plate is installed on the top inside the battery box shell; the top plate is integrally formed with the battery box shell; a positioning groove is formed inside the top plate; a spring switch is installed on the front side wall of the positioning groove. The elastic switch is integrally formed with the top plate; a locking block is installed on the top of the elastic switch; a locking hole is opened at the bottom of the battery box shell; there are two locking holes; a mating groove is opened at the top of the rear side wall of the battery box shell; the battery box core structure consists of a battery box core body, a pre-positioning block, a buffer pad, and an anti-slip layer; the battery box core body is set inside the battery box shell; a pre-positioning block is installed at the bottom of the battery box core body; a locking groove is opened at the top of the battery box core body; a handle groove is opened at the top of the battery box core body; an anti-slip layer is attached to the inner side wall of the handle groove; a buffer pad is installed on the back of the battery box core body; there are four buffer pads.

[0005] The aforementioned multi-functional battery box has a cumbersome locking and unlocking mechanism, a complex structural design, and lacks a handle, making it inconvenient to remove the battery core from the box for charging. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a battery box device with a reasonable structural design that is convenient for locking and unlocking.

[0007] The solution to the above technical problem is as follows:

[0008] A battery box device includes an outer battery box and an inner battery box. The outer battery box has a cavity with an open opening. The inner battery box is pluggably installed into the cavity through the opening. A handle is connected to the top of the inner battery box.

[0009] A lock hole is provided on one side of the upper wall of the outer battery box;

[0010] A longitudinal hole is provided inside one side of the handle, and an opening is provided at the top of the longitudinal hole;

[0011] A transverse locking cavity is provided inside the upper corner of one side of the inner battery box; a locking mounting through hole is provided on the upper wall of one side of the inner battery box, and the locking mounting through hole is transversely connected to the transverse locking cavity.

[0012] The longitudinal hole connects to the transverse locking cavity;

[0013] The transverse locking cavity and the locking mounting through hole are used to install a resilient locking device in the transverse direction; under normal conditions, the front part of the resilient locking device protrudes from the outside of the inner battery box.

[0014] The longitudinal hole, the opening, and the transverse locking cavity are all vertically equipped with an elastic push button device;

[0015] The elastic push button device is used to adjust the extension and retraction of the elastic locking device; after the inner battery box is inserted into the box cavity through the cavity opening, when the front end of the elastic locking device is inserted into the lock hole, the outer battery box and the inner battery box are locked together.

[0016] After the front end of the elastic locking device disengages from the lock hole, the inner battery box can be pulled out of the box cavity to separate the outer battery box.

[0017] The elastic locking device includes a transverse locking pin and a transverse return spring assembly. A first spring pressing member extends and protrudes from the middle section of the transverse locking pin. The transverse locking pin passes through the transverse locking cavity and the locking mounting through hole. The transverse return spring assembly and the first spring pressing member are arranged at the front of the transverse locking cavity. The transverse return spring assembly is transversely clamped between the first spring pressing member and the front wall of the transverse locking cavity.

[0018] The elastic push button device includes a vertical push button component and a longitudinal return spring assembly. The vertical push button component passes through a longitudinal hole, an orifice, and a transverse locking cavity. The upper section of the vertical push button component is arranged in the longitudinal hole, the top is arranged in the orifice, and the bottom section is arranged in the transverse locking cavity. A second spring pressing component extends from the rear side wall of the lower section of the vertical push button component, and a pressing protrusion extends from the bottom of the front side wall. The second spring pressing component is limited and prevented from dislodging by the top wall of the transverse locking cavity. A notch is opened on the front side wall of the vertical push button component above the pressing protrusion. The lower section of the vertical push button component, the second spring pressing component, and the longitudinal return spring assembly are arranged in the rear part of the transverse locking cavity. The longitudinal return spring assembly is clamped between the second spring pressing component and the bottom of the transverse locking cavity.

[0019] Under normal conditions, the vertical push button is lifted by the longitudinal reset spring assembly, and the pressing protrusion presses against the rear end of the transverse locking pin, pushing the transverse locking pin forward and causing the front part of the transverse locking pin to protrude outside the inner battery box.

[0020] After the vertical push button descends, the horizontal locking pin rebounds and retracts inward through the horizontal return spring assembly. When the rear end of the horizontal locking pin falls into the notch, it retracts inward and does not protrude from the outside of the inner battery box.

[0021] The front bottom of the transverse locking pin has a front corner inclined surface.

[0022] The rear bottom of the transverse locking pin is provided with a rear corner inclined surface;

[0023] The top pressing protrusion has an upper corner inclined surface, and the upper corner inclined surface and the rear corner inclined surface are slidably adjusted together.

[0024] The cavity is square; the outer battery box and the inner battery box are square; the inner battery box has the same shape as the cavity, which fits perfectly.

[0025] The outer battery box has several mounting lugs extending from its left and right side walls, and screw holes are provided on the mounting lugs.

[0026] The bottom of the inner battery box has a recessed socket for installation.

[0027] The inner battery box has several sloping ribs extending from the upper part of the front and rear walls.

[0028] The outer and inner battery boxes are made of plastic.

[0029] The beneficial effects of this battery box device are as follows: 1. The structure of this product facilitates locking and unlocking between the outer battery box and the inner battery box. After locking, the connection is stable and firm. When the elastic push button is pressed down, the elastic locking device automatically uses its own reset elasticity to shrink inward, thereby achieving automatic unlocking with high unlocking efficiency. 2. The connection between the outer battery box and the inner battery box is simple, easy to install, and easy to operate. Attached Figure Description

[0030] Figure 1 , Figure 2 , Figure 3 This is a perspective view of the product of this utility model, showing the transverse locking pin inserted into the lock hole; Figure 4 , Figure 5 , Figure 6 This is an exploded view of the outer battery box and the inner battery box of the present utility model.

[0031] Figure 7 This is a cross-sectional view of the outer battery box of the present invention.

[0032] Figure 8 This is a cross-sectional view of the inner battery box of the present invention, which is equipped with an elastic locking device and an elastic push button device.

[0033] Figure 9 This is a cross-sectional view of the inner battery box of the present invention, without the installation of elastic locking device or elastic push button device;

[0034] Figure 10 , Figure 11 , Figure 12 This is an exploded view of the inner battery box, elastic locking device, and elastic push button device of the present invention.

[0035] Figure 13This is a side view of the vertical push button component of this utility model.

[0036] Figure 14 This is a side view of the transverse locking pin of this utility model product;

[0037] Figure 15 This is a perspective view of the elastic push button device in the retracted state after the elastic locking device of this utility model is pressed down.

[0038] Figure 16 This is a cross-sectional view of the elastic locking device of this utility model in the retracted state after being pressed down.

[0039] Outer battery box 1, box cavity 11, lock hole 12, mounting lug 14, screw hole 15, inner battery box 2, handle 201, longitudinal hole 21, opening 211, transverse locking cavity 22, locking mounting through hole 23, inclined rib 24, socket mounting recess 25, elastic locking device 3, transverse locking pin 31, first spring pressing part 311, front corner inclined surface 312, rear corner inclined surface 313, transverse return spring assembly 32, elastic push button device 4, vertical push button 41, second spring pressing part 411, pressing protrusion 412, notch 413, upper corner inclined surface 414, longitudinal return spring assembly 42. Detailed Implementation

[0040] like Figures 1 to 16 As shown: A battery box device. This product is used for installation on the frame of electric wheelchairs and electric mobility scooters for the disabled, and belongs to the category of electric wheelchair and electric mobility scooter components. This battery box includes an outer battery box 1 and an inner battery box 2. The outer battery box 1 has a cavity 11 with an open opening. The inner battery box 2 is pluggably installed into the cavity 11 through the opening. The top of the inner battery box 2 is integrally extended with a handle 201, which facilitates the removal of the inner battery box 2 by hand. That is, the inner battery box 2 can be inserted into the cavity 11 through the opening and can be pulled out from the cavity 11, forming a detachable connection. After the inner battery box 2 is inserted into the cavity 11, the outer battery box 1 surrounds the inner battery box 2 with a semi-enclosed structure.

[0041] A lock hole 12 is provided on one side of the upper wall of the outer battery box 1;

[0042] The handle 201 has a longitudinal hole 21 inside one side, and an opening 211 is provided at the top of the longitudinal hole 21 (the top of the longitudinal hole 21 is the opening 211).

[0043] A transverse locking cavity 22 is provided inside the upper corner of one side of the inner battery box 2; a locking mounting through hole 23 is provided on the upper wall of one side of the inner battery box 2, and the locking mounting through hole 23 is directly connected to the transverse locking cavity 22 in the transverse direction.

[0044] The longitudinal hole 21 is vertically connected to the rear of the transverse locking cavity 22;

[0045] The transverse locking cavity 22 and the locking mounting through hole 23 are used to horizontally mount the elastic locking device 3.

[0046] The longitudinal hole 21, the orifice 211, and the transverse locking cavity 22 are all vertically mounted with an elastic push button device 4;

[0047] The elastic push button device 4 is used to adjust the extension and retraction of the elastic locking device 3; that is: under normal conditions, the bottom end of the elastic push button device 4 pushes the elastic locking device 3 outward, so that the front part of the elastic locking device 3 protrudes outside the inner battery box 2, and is in the locked state; after the elastic push button device 4 is pressed down, it provides an inward space for the elastic locking device 3, and the elastic locking device 3 automatically uses its own reset elastic retraction to prevent the front part of the elastic locking device 3 from protruding outside the inner battery box 2, and is in the unlocked state; after the inner battery box 2 is inserted into the box cavity 11 through the cavity opening, when the front end of the elastic locking device 3 is inserted into the lock hole 12, the outer battery box 1 and the inner battery box 2 are locked together, and the inner battery box 2 cannot be freely pulled out from the box cavity 11 of the outer battery box 1, thus fixing the inner battery box 2 so that it will not fall out naturally.

[0048] The elastic locking device 3 retracts inward. After the front end of the elastic locking device 3 disengages from the lock hole 12, the inward retraction and unlocking of the elastic locking device 3 is completed, and the inner battery box 2 can be pulled out from the box cavity 11 to separate the outer battery box 1.

[0049] The connection between the outer battery box 1 and the inner battery box 2 is simple, easy to install and operate; the above structure facilitates locking and unlocking between the outer battery box 1 and the inner battery box 2, and the connection is stable and firm after locking; when the elastic push button device 4 is pressed down, the elastic locking device 3 automatically uses its own reset elasticity to shrink inward, realizing automatic unlocking with high unlocking efficiency.

[0050] The inner battery box 2 is used to fix the rechargeable battery. Since the rechargeable battery will run out of power, the inner battery box 2 needs to be pulled out of the box cavity 11 and taken to a place with charging facilities to charge. After charging, the inner battery box 2 is inserted back into the box cavity 11 to fix it. In order to prevent it from falling out during use, a flexible push button device 4, a flexible locking device 3, and a lock hole 12 are provided to cooperate in locking and unlocking.

[0051] Further refinement of the preferred technical solution:

[0052] The elastic locking device 3 includes a transverse locking pin 31 and a transverse return spring assembly 32. The transverse locking pin 31 is integrally injection molded, and the transverse return spring assembly 32 includes two pressure springs. A first spring pressing member 311 protrudes from the middle section of the transverse locking pin 31. The transverse locking pin 31 passes through the transverse locking cavity 22 and the locking mounting through hole 23, and is perfectly fitted to be installed in the transverse locking cavity 22 and the locking mounting through hole 23. The transverse return spring assembly 32 and the first spring pressing member 311 are arranged at the front of the transverse locking cavity 22. The transverse return spring assembly 32 is transversely clamped between the first spring pressing member 311 and the inner front wall of the transverse locking cavity 22, giving the transverse locking pin 31 elasticity. The front section of the transverse locking pin 31 protrudes from the locking mounting through hole 23, which fits perfectly.

[0053] The elastic push button device 4 includes a vertical push button 41 and a longitudinal return spring assembly 42. The vertical push button 41 is integrally injection molded, and the longitudinal return spring assembly 42 includes two return springs. The vertical push button 41 passes through the longitudinal hole 21, the orifice 211, and the transverse locking cavity 22, with the space just suitable for passing through. The upper section of the vertical push button 41 is arranged in the longitudinal hole 21, the top is arranged in the orifice 211, and the bottom section is arranged in the transverse locking cavity 22. The lower section of the vertical push button 41 has a second spring pressing member protruding from its rear sidewall. 411. A pressing protrusion 412 extends from the bottom of the front side wall. The second spring pressing member 411 is limited and prevented from falling off by the top wall of the transverse locking cavity 22. A notch 413 is opened on the front side wall of the vertical push button 41 above the pressing protrusion 412. The lower section of the vertical push button 41, the second spring pressing member 411, and the longitudinal return spring assembly 42 are arranged in the rear part of the transverse locking cavity 22. The longitudinal return spring assembly 42 is clamped between the second spring pressing member 411 and the bottom of the transverse locking cavity 22, so that the vertical push button 41 has elasticity.

[0054] Under normal conditions, the vertical push button 41 is pushed up by the longitudinal reset spring assembly 42. Since the pressing protrusion 412 is protruding, the pressing protrusion 412 presses against the rear end of the transverse locking pin 31, pushing the transverse locking pin 31 forward and pushing it out. This causes the front part of the transverse locking pin 31 to protrude outside the inner battery box 2. When the protruding part of the front part of the transverse locking pin 31 is inserted into the lock hole 12, the inner battery box 2 is locked to the outer battery box 1 by the transverse locking pin 31.

[0055] When the vertical push button 41 is pressed down, the vertical push button 41 descends, and the horizontal locking pin 31 rebounds and retracts inward through the horizontal return spring assembly 32. When the rear end of the horizontal locking pin 31 falls into the recess 413, the recess 413 provides space for the horizontal locking pin 31 to retract inward, so that the horizontal locking pin 31 does not protrude outside the inner battery box 2, thus completing the unlocking of the inner battery box 2. The inner battery box 2 can be pulled out from the outer battery box 1.

[0056] The above describes the specific structure of the elastic locking device 3 and the elastic push button device 4. The structure is easy to operate and has strong practicality.

[0057] The front bottom of the transverse locking pin 31 has a front corner inclined surface 312, which makes it convenient for the inner battery box 2 to be inserted into the box cavity 11. When the inner battery box 2 is inserted into the box cavity 11, the front bottom of the transverse locking pin 31 presses against the opening of the box cavity 11. The transverse locking pin 31 is automatically retracted by the pressure of the front corner inclined surface 312. When the inner battery box 2 is inserted into the box cavity 11, the transverse locking pin 31 automatically extends and is inserted into the lock hole 12; making it convenient to lock.

[0058] The rear bottom of the transverse locking pin 31 is provided with a rear corner inclined surface 313;

[0059] The top pressing protrusion 412 has an upper corner inclined surface 414 on its upper side. The upper corner inclined surface 414 and the rear corner inclined surface 313 are slidably adjusted to facilitate excessive sliding between them and prevent jamming.

[0060] The cavity 11 is square; the outer battery box 1 and the inner battery box 2 are square; the inner battery box 2 has the same shape as the cavity 11, which fits perfectly; a suitable shape is set.

[0061] The outer battery box 1 has several mounting ears 14 extending from its left and right side walls. The mounting ears 14 are provided with screw holes 15. Several screws are passed through the screw holes 15 to fix the outer battery box 1 to the frame of the wheelchair.

[0062] The bottom of the inner battery box 2 is provided with a socket mounting recess 25, which is used to connect to a power socket.

[0063] The inner battery box 2 has several inclined ribs 24 extending from the upper part of its front and rear walls. After the inner battery box 2 is inserted into the box cavity 11, the inclined ribs make the inner battery box 2 and the inner wall of the box cavity 11 slightly squeezed together, thus creating a tight connection and preventing the inner battery box 2 from becoming loose.

[0064] The outer battery box 1 and the inner battery box 2 are made of plastic.

[0065] The outer battery box 1 is formed by fixing the outer front shell and the outer rear shell together with screws.

[0066] The inner battery box 2 is formed by fixing the inner front shell and the inner rear shell together with screws.

Claims

1. A battery box device, comprising an outer battery box and an inner battery box, wherein the outer battery box has a cavity with an open opening, the inner battery box is pluggably installed into the cavity through the opening, and a handle is connected to the top of the inner battery box, characterized in that: A lock hole is provided on one side of the upper wall of the outer battery box; A longitudinal hole is provided inside one side of the handle, and an opening is provided at the top of the longitudinal hole; A transverse locking cavity is provided inside the upper corner of one side of the inner battery box; a locking mounting through hole is provided on the upper wall of one side of the inner battery box, and the locking mounting through hole is transversely connected to the transverse locking cavity. The longitudinal hole connects to the transverse locking cavity; The transverse locking cavity and the locking mounting through hole are used to install a resilient locking device in the transverse direction; under normal conditions, the front part of the resilient locking device protrudes from the outside of the inner battery box. The longitudinal hole, the opening, and the transverse locking cavity are all vertically equipped with an elastic push button device; The elastic push button device is used to adjust the extension and retraction of the elastic locking device; after the inner battery box is inserted into the box cavity through the cavity opening, when the front end of the elastic locking device is inserted into the lock hole, the outer battery box and the inner battery box are locked together. After the front end of the elastic locking device disengages from the lock hole, the inner battery box can be pulled out from the box cavity to separate the outer battery box; The elastic locking device includes a transverse locking pin and a transverse return spring assembly. A first spring pressing member extends and protrudes from the middle section of the transverse locking pin. The transverse locking pin passes through the transverse locking cavity and the locking mounting through hole. The transverse return spring assembly and the first spring pressing member are arranged at the front of the transverse locking cavity. The transverse return spring assembly is transversely clamped between the first spring pressing member and the front wall of the transverse locking cavity. The elastic push button device includes a vertical push button component and a longitudinal return spring assembly. The vertical push button component passes through a longitudinal hole, an orifice, and a transverse locking cavity. The upper section of the vertical push button component is arranged in the longitudinal hole, the top is arranged in the orifice, and the bottom section is arranged in the transverse locking cavity. A second spring pressing component extends from the rear side wall of the lower section of the vertical push button component, and a pressing protrusion extends from the bottom of the front side wall. The second spring pressing component is limited and prevented from dislodging by the top wall of the transverse locking cavity. A notch is opened on the front side wall of the vertical push button component above the pressing protrusion. The lower section of the vertical push button component, the second spring pressing component, and the longitudinal return spring assembly are arranged in the rear part of the transverse locking cavity. The longitudinal return spring assembly is clamped between the second spring pressing component and the bottom of the transverse locking cavity. Under normal conditions, the vertical push button is lifted by the longitudinal reset spring assembly, and the pressing protrusion presses against the rear end of the transverse locking pin, pushing the transverse locking pin forward and causing the front part of the transverse locking pin to protrude outside the inner battery box. After the vertical push button descends, the horizontal locking pin rebounds and retracts inward through the horizontal return spring assembly. When the rear end of the horizontal locking pin falls into the notch, it retracts inward and does not protrude from the outside of the inner battery box. The front bottom of the transverse locking pin is provided with a front corner inclined surface; The rear bottom of the transverse locking pin is provided with a rear corner inclined surface; The top pressing protrusion has an upper corner inclined surface, and the upper corner inclined surface and the rear corner inclined surface are slidably adjusted together.

2. The battery box device according to claim 1, characterized in that: The cavity is square; the outer battery box and the inner battery box are square; the inner battery box has the same shape as the cavity, which fits perfectly.

3. The battery box device according to claim 1, characterized in that: The outer battery box has several mounting lugs extending from its left and right side walls, and screw holes are provided on the mounting lugs.

4. The battery box device according to claim 1, characterized in that: The bottom of the inner battery box has a recessed socket for installation.

5. A battery box device according to claim 1, characterized in that: The inner battery box has several sloping ribs extending from the upper part of the front and rear walls.

6. The battery box device according to claim 1, characterized in that: The outer and inner battery boxes are made of plastic.

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