Locking structure of battery pack

Abstract

The utility model provides a kind of battery package's stop lock structure, belong to cleaning machine technical field.It solves the problem of poor convenience of existing battery package unlocking.The battery package stop lock structure, including the battery box with battery compartment, the outside wall of battery box has mounting seat, mounting cavity is provided with hanging platform block, one end of hanging platform block can extend into battery compartment, spring one is arranged between the inner wall of hanging platform block and mounting seat, spring one makes hanging platform block have the direction of moving inside battery compartment, the below of hanging platform block is provided with the trigger of being able to rotate, the trigger includes force arm and main hook, the below of force arm is provided with spring two, the end of main hook and hanging platform block abut, the above of hanging platform block is provided with button, the lower end of button and force arm abut.The structure is unlocked by applying relatively small force, and the unlocking operation is convenient.The structure of the stop lock structure is simple, small and compact.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning machine technology, and specifically refers to a locking structure for a battery pack. Background Technology

[0002] A high-pressure washer is a machine that uses a power unit to drive a high-pressure plunger pump to generate high-pressure water to rinse the surface of an object. It can peel off and wash away dirt, achieving the purpose of cleaning the surface of the object. Currently, most lithium battery cleaning machines in the industry use a battery pack installed inside the cleaning machine, which powers the power unit. Existing battery packs are installed in the battery compartment and then positioned using a locking mechanism to prevent them from detaching from the compartment.

[0003] There are two main locking structures. One type places the locking button on the battery compartment housing. This type of button is relatively large and requires pulling outwards to remove the battery pack. The large size of the button in this type of structure makes the battery box itself larger. The other type places the locking button on the battery pack, which is inconvenient.

[0004] Currently, a battery pack with a snap-fit ​​structure is disclosed on the Chinese patent website [Authorization Announcement No.: CN219163579U]. It includes a housing for mounting a battery compartment in an electrical device, with battery cells housed within the housing. The snap-fit ​​structure comprises two opposing latching blocks slidably mounted on the housing. The two latching blocks can move away from each other to a first position to engage with the battery compartment, and can move closer together to a second position to disengage from the battery compartment. An elastic member is used to elastically drive the two latching blocks away from the first position. A sliding member is slidably mounted on the housing, and the sliding member has two force-applying parts corresponding to the two latching blocks. The sliding member slides under force so that the two force-applying parts act on the two latching blocks, and the two latching blocks, driven by the two force-applying parts, press against the elastic member to move closer to the second position. During operation, the sliding member needs to be pushed horizontally by hand to move the latching blocks horizontally; this method requires a relatively large force to unlock. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a battery pack locking structure. The technical problem this invention aims to solve is: how to improve the convenience of unlocking the battery pack.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A locking structure for a battery pack includes a battery box with a battery compartment. The battery box has a mounting base on its outer wall, the mounting base having a mounting cavity. A mounting block is disposed within the mounting cavity, one end of the mounting block extending into the battery compartment. A spring is disposed between the mounting block and the inner wall of the mounting base, the spring causing the mounting block to move towards the interior of the battery compartment. A rotatable trigger is disposed below the mounting block, the trigger including a force arm and a main hook. A second spring is disposed below the force arm, the end of the main hook abutting against the mounting block. A button is disposed above the mounting block, the lower end of the button abutting against the force arm. When the button is pressed downwards, the trigger rotates and, through the main hook, moves the mounting block away from the battery compartment.

[0008] A battery pack is placed inside the battery compartment. A mounting block, under the action of spring one, extends one end into the battery compartment and engages with the battery pack, thus positioning the battery pack within the compartment. When the battery pack needs to be removed, pressing the button downwards applies a downward force to the lever arm, which overcomes the force of spring two and rotates downwards by a certain angle. This causes the trigger to rotate by a certain angle, and the trigger's main hook moves the mounting block away from the battery compartment, overcoming the force of spring one. This disengages the mounting block from the battery compartment, unlocking the battery pack and facilitating its removal. This structure unlocks the battery pack by using the lever principle of the trigger after pressing the button, requiring only a small force to unlock. The unlocking operation is convenient. Furthermore, this locking structure is simple in design and compact in size.

[0009] In the aforementioned battery pack locking structure, guide holes are provided on two opposite side walls of the mounting cavity. These guide holes are positioned along the moving direction of the mounting block. Sliding portions extending into the corresponding guide holes are provided on both sides of the mounting block. A first spring seat is provided on one side of the mounting block, and a second spring seat is provided on the inner wall of the mounting cavity. One end of the first spring is fitted onto the first spring seat, and the other end is fitted onto the second spring seat. The mounting block is slidably positioned within the guide holes via the sliding portions on both sides, ensuring that the mounting block can slide horizontally smoothly and steadily without easily shifting.

[0010] In the aforementioned locking structure of a battery pack, the trigger has a rotating shaft, the side wall of the mounting base has a bearing seat, the rotating shaft is mounted on the bearing seat, the bottom surface of the mounting cavity has a spring seat three, the lower surface of the force-bearing arm has a spring seat four, the lower end of the spring two is sleeved on the spring seat three, and the upper end is sleeved on the spring seat four. The assembly structure of the rotating shaft and the bearing seat ensures that the trigger can rotate smoothly within the mounting cavity, and the arrangement of the spring seat three and the spring seat four ensures stable spring installation.

[0011] In the aforementioned locking structure of a battery pack, the button includes two abutting portions that abut against the upper surface of the force-bearing arm. The button has a relief groove in its center, and the spring is located within the relief groove. The abutting portions are designed to contact the force-bearing arm and drive it to rotate, while the relief groove facilitates the installation of the spring.

[0012] In the aforementioned battery pack locking structure, mounting arms are provided on both sides of the button, and the sidewalls of the mounting arms have limiting blocks. A stop block is provided above the limiting blocks of the mounting base, and the limiting blocks can abut against the stop blocks. When the button is pressed down and then released, the button moves upward to reset under the force of the second spring. When the limiting blocks abut against the stop blocks, it indicates that the button has been reset to its original position.

[0013] In the aforementioned locking structure for a battery pack, a cover plate is provided at the upper end of the mounting base, and a through hole is formed in the middle of the cover plate. The upper end of the button has a pressing part, which is located within the through hole. The cover plate encloses the entire locking structure within the mounting base, making it more aesthetically pleasing and also providing some protection for the button.

[0014] Compared with the prior art, the battery pack locking structure of this utility model has the following advantages: This structure unlocks the battery pack by pressing the button and using the lever principle of the trigger to move the mounting block, which can unlock the battery with a relatively small force. The unlocking operation is convenient. In addition, the locking structure is simple in structure and small in size. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is one of the cross-sectional structural schematic diagrams of this utility model.

[0017] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.

[0018] Figure 4 This is the second cross-sectional structural schematic diagram of this utility model.

[0019] Figure 5 yes Figure 4 A magnified structural diagram of part A in the middle.

[0020] Figure 6 This is one of the partial three-dimensional structural schematic diagrams of this utility model.

[0021] Figure 7 This is the second partial three-dimensional structural schematic diagram of this utility model.

[0022] Figure 8This is a three-dimensional structural diagram of the battery box of this utility model.

[0023] In the diagram, 1. Battery box; 2. Battery compartment; 3. Mounting base; 4. Mounting cavity; 5. Hanging block; 50. Sliding part; 51. Spring seat one; 6. Spring one; 7. Trigger; 70. Force arm; 71. Main hook; 72. Rotating shaft; 73. Spring seat four; 8. Spring two; 9. Button; 90. Clamping part; 91. Relief groove; 92. Mounting arm; 93. Pressing part; 94. Limiting block; 10. Guide hole; 11. Spring seat two; 12. Spring seat three; 13. Stop block; 14. Cover plate; 140. Through hole; 15. Battery pack; 16. Shaft seat. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] like Figures 1 to 8As shown, the locking structure of this battery pack includes a battery box 1 with a battery compartment 2. A mounting base 3 is located on the outer wall of the battery box 1. The mounting base 3 has a mounting cavity 4, and a mounting block 5 is disposed within the mounting cavity 4. One end of the mounting block 5 can extend into the battery compartment 2. A spring 6 is disposed between the mounting block 5 and the inner wall of the mounting base 3, allowing the mounting block 5 to move towards the interior of the battery compartment 2. A rotatable trigger 7 is disposed below the mounting block 5. The trigger 7 has a rotating shaft 72. A bearing seat 16 is located on the side wall of the mounting base 3, and the rotating shaft 72 is mounted on the bearing seat 16. The trigger 7 includes a force-bearing arm 70 and a main hook 71. A second spring 8 is disposed below the force-bearing arm 70. A third spring seat 12 is located on the bottom surface of the mounting cavity 4, and a fourth spring seat 73 is located on the lower surface of the force-bearing arm 70. The lower end of the second spring 8 is sleeved on the third spring seat 12, and the upper end is sleeved on the fourth spring seat 73. The end of the main hook 71 abuts against the mounting block 5. A button 9 is located above the mounting block 5, and the lower end of the button 9 abuts against the force arm 70. When the button 9 is pressed down, the trigger 7 rotates and, through the main hook 71, moves the mounting block 5 away from the battery compartment 2. A battery pack 15 is placed inside the battery compartment 2. Under the action of spring 6, one end of the mounting block 5 extends into the battery compartment 2 and engages with the battery pack 15, thus positioning the battery pack 15 inside the battery compartment 2. When it is necessary to remove the battery pack 15, the button 9 is pressed down. The downward force of the button 9 acts on the force arm 70, causing the force arm 70 to rotate downwards by a certain angle against the force of spring 8. This causes the trigger 7 to rotate by a certain angle, and the main hook 71 of the trigger 7 moves the mounting block 5 away from the battery compartment 2 against the force of spring 6, thus detaching the mounting block 5 from the battery compartment 2 and unlocking the battery pack 15, facilitating its removal from the battery compartment 2. This structure unlocks the device by pressing button 9, which uses the lever principle of trigger 7 to move the hanging block 5. This allows for unlocking with relatively little force, making the unlocking operation convenient. In addition, this locking structure is simple in structure and compact in size.

[0026] like Figure 6 , Figure 7 and Figure 8 As shown, guide holes 10 are provided on two opposite side walls inside the mounting cavity 4. The guide holes 10 are arranged along the moving direction of the mounting block 5. Sliding parts 50 extending into the corresponding guide holes 10 are provided on both sides of the mounting block 5. A spring seat 1 51 is provided on one side of the mounting block 5, and a spring seat 2 11 is provided on the inner wall of the mounting cavity 4. One end of the spring 1 6 is sleeved on the spring seat 1 51, and the other end is sleeved on the spring seat 2 11. The mounting block 5 is slidably disposed in the guide holes 10 through the sliding parts 50 on both sides, ensuring that the mounting block 5 can slide in the horizontal direction. The mounting block 5 slides smoothly and is not easily displaced.

[0027] like Figure 5 , Figure 6 and Figure 7 As shown, button 9 includes two abutting portions 90 that abut against the upper surface of the force-bearing arm 70. A relief groove 91 is located in the middle of button 9, and spring 6 is located within the relief groove 91. Mounting arms 92 are provided on both sides of button 9. Limiting blocks 94 are located on the side walls of mounting arms 92. A stop block 13 is provided above the limiting blocks 94 on mounting base 3, allowing the limiting blocks 94 to abut against the stop block 13. When button 9 is pressed down and then released, the button 9 moves upward to reset under the force of spring 8. The reset is complete when the limiting blocks 94 abut against the stop block 13. A cover plate 14 is provided at the upper end of mounting base 3. A through hole 140 is provided in the middle of cover plate 14, and a pressing portion 93 is located at the upper end of button 9 within the through hole 140.

[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A locking structure for a battery pack, comprising a battery box (1) having a battery compartment (2), characterized in that, The battery box (1) has a mounting base (3) on its outer side wall. The mounting base (3) has a mounting cavity (4). A mounting block (5) is provided in the mounting cavity (4). One end of the mounting block (5) can extend into the battery compartment (2). A spring (6) is provided between the mounting block (5) and the inner wall of the mounting base (3). The spring (6) causes the mounting block (5) to move toward the inside of the battery compartment (2). A rotatable trigger (7) is provided below the mounting block (5). The trigger (7) includes a force arm (70) and a main hook (71). A second spring (8) is provided below the force arm (70). The end of the main hook (71) abuts against the mounting block (5). A button (9) is provided above the mounting block (5). The lower end of the button (9) abuts against the force arm (70). When the button (9) is pressed down, the trigger (7) rotates and drives the mounting block (5) to move away from the battery compartment (2) through the main hook (71).

2. The locking structure for a battery pack according to claim 1, characterized in that, Guide holes (10) are provided on two opposite side walls inside the mounting cavity (4). The guide holes (10) are arranged along the moving direction of the mounting block (5). Sliding parts (50) extending into the corresponding guide holes (10) are provided on both sides of the mounting block (5). A spring seat one (51) is provided on one side of the mounting block (5). A spring seat two (11) is provided on the inner wall of the mounting cavity (4). One end of the spring one (6) is sleeved on the spring seat one (51) and the other end is sleeved on the spring seat two (11).

3. The locking structure for a battery pack according to claim 1, characterized in that, The trigger (7) has a rotating shaft (72), the side wall of the mounting base (3) has a bearing seat (16), the rotating shaft (72) is mounted on the bearing seat (16), the bottom surface of the mounting cavity (4) has a spring seat three (12), the lower surface of the force arm (70) has a spring seat four (73), the lower end of the spring two (8) is sleeved on the spring seat three (12), and the upper end is sleeved on the spring seat four (73).

4. The locking structure for a battery pack according to claim 1, characterized in that, The button (9) includes two abutting parts (90) that abut against the upper surface of the force arm (70), and the middle part of the button (9) has a relief groove (91), and the spring (6) is located in the relief groove (91).

5. The locking structure for a battery pack according to claim 1, characterized in that, The button (9) is provided with mounting arms (92) on both sides. The side wall of the mounting arm (92) has a limiting block (94). The mounting base (3) is provided with a stop block (13) above the limiting block (94). The limiting block (94) can abut against the stop block (13).

6. The locking structure for a battery pack according to claim 1, characterized in that, The upper port of the mounting base (3) is provided with a cover plate (14), and a through hole (140) is provided in the middle of the cover plate (14). The upper end of the button (9) has a pressing part (93), and the pressing part (93) is located in the through hole (140).

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