Vehicle-mounted bottom support and battery box locking mechanism thereof

Abstract

The utility model relates to the field of heavy truck battery replacement, and discloses a vehicle-mounted bottom support and a battery box locking mechanism thereof, the battery box locking mechanism comprises a fixed beam (1) and a pressing connecting rod (2), the pressing connecting rod (2) is provided with a pressing wheel (3) capable of pressing a cross beam at the bottom of a battery box, the vehicle-mounted bottom support further comprises a driving connecting rod (4), a driven connecting rod (5) and a driving part used for realizing rotation of the driving connecting rod (4), the driving connecting rod (4) can drive the pressing connecting rod (2) to rotate at a fixed point through the driven connecting rod (5) in the rotating process, and the pressing wheel (3) can be driven to move up and down in the fixed-point rotating process of the pressing connecting rod (2). According to the utility model, the connecting rod mechanism is adopted to realize the pressing of the pressing wheel (3) on the cross beam at the bottom of the battery box, the whole structure is simple, the processing is convenient, the occupied space on a vehicle-mounted bottom support is small, and the whole installation can be realized without arranging a more complicated installation frame.

Description

Technical Field

[0001] The utility model relates to the field of heavy truck battery replacement, and in particular to a vehicle-mounted base. Background Art

[0002] When the existing electric heavy-duty truck battery replacement battery box is installed on the electric heavy-duty truck, the battery box is generally hoisted onto the vehicle-mounted base. A connector that cooperates with the bottom of the battery box is provided on the vehicle-mounted base, and a connector plug that cooperates with the connector is generally provided at the bottom of the battery box; the vehicle-mounted base is also generally provided with a positioning and locking mechanism for positioning the battery box, and a bottom cross beam is provided at the bottom of the battery box. The bottom cross beam is generally in the form of a concave frame structure, so that the positioning device on the vehicle-mounted base can be extended into and positioned.

[0003] Although the existing positioning and locking mechanism can position and lock the battery box, it still has problems such as complex structure, large space on the vehicle base, and inconvenient installation. Utility Model Content

[0004] The utility model aims at the problems existing in the vehicle-mounted bottom bracket in the prior art and provides a vehicle-mounted bottom bracket and a battery box locking mechanism thereof.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] The battery box locking mechanism includes a fixed beam and a clamping link that can rotate at a fixed point. The clamping link is provided with a clamping wheel that can clamp the bottom cross beam of the battery box from top to bottom. It also includes an active link, a driven link and a driving part for realizing the rotation of the active link. The two ends of the driven link are respectively hinged to the clamping link and the active link. The end of the active link away from the driven link is hinged to the fixed beam. During the rotation of the active link, the clamping link can be driven to rotate at a fixed point through the driven link. During the fixed-point rotation of the clamping link, the clamping wheel can be driven to move up and down.

[0007] Preferably, the driving part comprises a driving cylinder, a housing of the driving cylinder is hinged on the fixed beam, and an end of a piston rod of the driving cylinder is hinged on the active connecting rod.

[0008] Preferably, the fixed beam is vertically arranged and has an active connecting rod hinge seat and a driving cylinder hinge seat at the upper and lower ends respectively. A cylinder housing connection seat is also provided at a position adjacent to the driving cylinder hinge seat on the fixed beam, and the housing of the driving cylinder is rotatably connected to the cylinder housing connection seat. A single fixed beam can provide installation points for the active connecting rod and the driving cylinder, and a battery box locking mechanism can be installed on both sides of the fixed beam, which greatly reduces the installation space occupied by the entire mechanism on the vehicle-mounted base; structurally, the active connecting rod and the driving cylinder can be installed and fixed only by installing a hinge seat on the fixed beam, which has a simple structure and is easy to install.

[0009] Preferably, the driven connecting rod, the active connecting rod and the piston rod end of the driving cylinder are hinged at the same hinge axis, and the same hinge axis is located in the middle of the active connecting rod. A limit groove is provided on the side of the active connecting rod, and a limit rod is provided on the driven connecting rod perpendicular to the driven connecting rod. When the clamping wheel presses the bottom beam of the battery box, the limit rod is inserted into the limit groove.

[0010] The cooperation between the limit groove and the limit rod can limit the rotation angle of the active connecting rod and the driven connecting rod, thereby forming a dead point, ensuring that the entire battery box locking mechanism is locked in this state, thereby ensuring the clamping stability.

[0011] Preferably, the clamping link includes a link body, and the upper and lower ends of the link body are respectively provided with an upper link hinge portion and a lower link hinge portion extending toward the same side of the link body, the end of the lower link hinge portion away from the link body constitutes a rotation fixed point for the clamping link fixed-point rotation, the end of the upper link hinge portion away from the link body constitutes a clamping wheel mounting point for installing a clamping wheel, and the end of the upper link hinge portion close to the link body constitutes a driven link hinge point for hingedly connecting the driven link.

[0012] Preferably, a spring is connected between the clamping connecting rod and the driven connecting rod, and the spring has a tendency to keep the clamping connecting rod in a clamped state. The spring can play a role of further clamping insurance in the case of damage or leakage of the driving cylinder.

[0013] A vehicle-mounted base includes the aforementioned battery box locking mechanism.

[0014] Preferably, the vehicle further comprises a bottom bracket frame, the battery box locking mechanism is arranged on the bottom bracket frame, and the bottom bracket frame is also provided with a plurality of evenly arranged guide blocks and a plurality of evenly arranged positioning pins. The setting of the guide blocks can realize the rough positioning of the battery box during the hoisting process on the vehicle bottom bracket, and the setting of the positioning pins can realize the fine positioning of the battery box during the hoisting process on the vehicle bottom bracket, and finally cooperate with the locking mechanism to realize the fixation of the battery box on the vehicle bottom bracket.

[0015] The utility model has significant technical effects due to the adoption of the above technical solutions:

[0016] The utility model adopts a connecting rod mechanism to realize the pressing of the pressing wheel to the bottom crossbeam of the battery box. The overall structure is simple and the processing is convenient. It occupies a small space on the vehicle bottom bracket and can realize the overall installation without setting a more complicated installation frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a vehicle-mounted base bracket of the utility model.

[0018] Figure 2 yes Figure 1 Top view of the .

[0019] Figure 3 yes Figure 2 Schematic diagram of the structure of the battery box locking mechanism.

[0020] Figure 4 yes Figure 3 Schematic diagram of working status.

[0021] Figure 5 yes Figure 4 Cross-sectional view of . DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Example 1

[0024] This embodiment provides a vehicle-mounted base, such as Figure 1-Figure 5 As shown, the vehicle-mounted base also includes a base frame 10 , on which a battery box locking mechanism is installed. The base frame 10 is also provided with a plurality of evenly arranged guide blocks 20 and a plurality of evenly arranged positioning pins 30 .

[0025] In this embodiment, four guide blocks 20 are arranged on the vehicle-mounted base, two of which are arranged along the diagonal of the base frame 10, and the other two guide blocks 20 are arranged in the middle of both sides of the base frame 10; four positioning pins 30 are also provided, and the four positioning pins 30 are arranged in the middle of the base frame 10, and a battery replacement connector is also provided at the center position of the four positioning pins 30.

[0026] In addition, there are 6 battery box locking mechanisms, of which 4 battery box locking mechanisms are arranged at the four corners of the bottom support frame 10, and the other 2 battery box locking mechanisms are arranged on the center line of the bottom support frame 10 along the width direction, and the 2 battery box locking mechanisms are symmetrically arranged along the length direction of the bottom support frame 10.

[0027] The upper end of the guide block 20 is provided with at least one inclined surface, and the lower end is a vertical surface. During the hoisting process of the battery box, the bottom is vertically positioned by the guiding inclined surface on the guide block 20, and finally the lower end of the battery box is positioned by the vertical surface of the lower end of the guide block 20. At this time, all the outer walls of the guide block 20 are positioned in coordination with the inner wall of the lower end of the battery box to achieve rough positioning of the battery box; then the positioning pin 30 is inserted into the positioning hole at the bottom of the battery box to further achieve precise positioning of the battery box, and at this time, the connector on the battery box can be plugged into the battery replacement connector on the vehicle bottom bracket. Finally, the bottom crossbeam of the battery box is pressed downward by the clamping wheel 3 to achieve complete locking and positioning of the battery box on the vehicle bottom bracket.

[0028] The battery box locking mechanism includes a fixed beam 1 and a clamping link 2 that can rotate at a fixed point. The clamping link 2 is provided with a clamping wheel 3 that can clamp the bottom cross beam of the battery box from top to bottom.

[0029] It also includes an active connecting rod 4, a driven connecting rod 5 and a driving part for realizing the rotation of the active connecting rod 4. The two ends of the driven connecting rod 5 are respectively hinged to the clamping connecting rod 2 and the active connecting rod 4. The end of the active connecting rod 4 away from the driven connecting rod 5 is hinged on the fixed beam 1. During the rotation of the active connecting rod 4, the clamping connecting rod 2 can be driven to rotate at a fixed point through the driven connecting rod 5. During the fixed-point rotation of the clamping connecting rod 2, the clamping wheel 3 can be driven to move up and down.

[0030] Among them, the clamping link 2 includes a link body 21, and the upper and lower ends of the link body 21 are respectively provided with an upper link hinge part 22 and a lower link hinge part 23 extending toward the same side of the link body 21, and the end of the lower link hinge part 23 away from the link body 21 constitutes a rotation point for the fixed-point rotation of the clamping link 2, and the rotation point for the fixed-point rotation is set on the base frame 10 of the vehicle-mounted base. By designing the clamping link 2 to be U-shaped with its opening facing one side, the bottom is directly hinged to the base frame 10, thereby further simplifying the entire locking mechanism structure.

[0031] The end of the upper connecting rod hinge part 22 away from the connecting rod body 21 constitutes a pressure wheel mounting point for mounting the pressure wheel 3 , and the end of the upper connecting rod hinge part 22 close to the connecting rod body 21 constitutes a driven connecting rod hinge point for hingedly connecting the driven connecting rod 5 .

[0032] In this embodiment, the driving part includes a driving cylinder 6, the housing of the driving cylinder 6 is hinged on the fixed beam 1, and the end of the piston rod of the driving cylinder 6 is hinged on the active connecting rod 4. Of course, other mechanisms capable of realizing linear telescopic motion can also be used to achieve this, such as an electric telescopic rod, an oil cylinder, etc.

[0033] Among them, the fixed beam 1 is vertically arranged and has an active connecting rod articulated seat 11 and a driving cylinder articulated seat 12 at the upper and lower ends respectively. A cylinder housing connecting seat 13 is also arranged at a position adjacent to the driving cylinder articulated seat 12 on the fixed beam 1, and the housing of the driving cylinder 6 is rotatably connected to the cylinder housing connecting seat 13. The cylinder housing connecting seat 13 and the driving cylinder articulated seat 12 jointly realize the connection of the driving cylinder 6 on the vehicle-mounted base, which can effectively ensure the installation stability of the driving cylinder 6.

[0034] like Figure 4 As shown, Figure 4 The left side shows the state where the clamping wheel 3 releases the clamping of the battery box cross beam, and the right side shows the state where the clamping wheel 3 clamps the battery box cross beam.

[0035] During the operation, the piston rod of the driving cylinder 6 is retracted, driving the active connecting rod 4 to rotate counterclockwise around the rotating point e, the active connecting rod 4 drives the driven connecting rod 5 to rotate clockwise through the rotating point d, and the driven connecting rod 5 drives the clamping connecting rod 2 to rotate counterclockwise around the rotating point a through the rotating point c, thereby realizing the downward pressure of the clamping wheel 3 at the upper end of the clamping connecting rod 2; conversely, the piston rod of the driving cylinder 6 is extended to realize the opening of the clamping wheel 3.

[0036] In this embodiment, the driven connecting rod 5, the active connecting rod 4 and the piston rod end of the driving cylinder 6 are hinged at the same hinge axis, and the same hinge axis is located in the middle of the active connecting rod 4. A limiting groove 41 is provided on the side of the active connecting rod 4 facing the driven connecting rod 5. The driven connecting rod 5 is provided with a limiting rod 51 which is vertically arranged with the driven connecting rod 5. When the clamping wheel 3 presses the bottom cross beam of the battery box, the limiting rod 51 is inserted into the limiting groove 41.

[0037] During the clamping process of the clamping wheel 3, the active connecting rod 4 rotates counterclockwise and finally causes the limit groove 41 thereon to engage with the limit rod 51 on the driven connecting rod 5. At this time, the clamping wheel 3 is just in a state of clamping the battery box crossbeam. The cooperation between the limit groove 41 and the limit rod 51 can limit the rotation angle of the active connecting rod 4 and the driven connecting rod 5, and then form a dead point, ensuring that the entire battery box locking mechanism is locked in this state, and then ensuring the clamping stability.

[0038] In addition, a spring 7 is connected between the clamping link 2 and the driven link 5. The spring 7 has a tendency to keep the clamping link 2 in a clamped state. Specifically, the spring 7 in this embodiment can play a further clamping and insurance role in the event of damage or leakage of the driving cylinder 6. When the air source of the driving cylinder 6 is insufficient, the spring 7 will continue to pull the driven link 5 downward, so that the driven link 5 can still continue to push the upper end of the clamping link 2 downward. At the same time, the spring 7 can also tighten the lower end of the clamping link 2, further pressing the upper end of the clamping link 2 downward, and the clamping wheel 3 maintained at the upper end of the clamping link 2 can still continue to clamp the battery box cross beam.

[0039] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0040] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A battery box locking mechanism, comprising a fixed beam (1) and a clamping link (2) capable of rotating at a fixed point, wherein the clamping link (2) is provided with a clamping wheel (3) capable of clamping a bottom cross beam of the battery box from top to bottom, wherein the clamping wheel (3) is characterized in that: It also comprises an active connecting rod (4), a driven connecting rod (5) and a driving part for realizing the rotation of the active connecting rod (4); the two ends of the driven connecting rod (5) are respectively hinged to the clamping connecting rod (2) and the active connecting rod (4); the end of the active connecting rod (4) away from the driven connecting rod (5) is hinged to the fixed beam (1); during the rotation of the active connecting rod (4), the clamping connecting rod (2) can be driven to rotate at a fixed point through the driven connecting rod (5); during the fixed point rotation of the clamping connecting rod (2), the clamping wheel (3) can be driven to move up and down.

2. The battery box locking mechanism according to claim 1, characterized in that: The driving part comprises a driving cylinder (6), a shell of the driving cylinder (6) is hinged on the fixed beam (1), and an end of a piston rod of the driving cylinder (6) is hinged on the active connecting rod (4).

3. The battery box locking mechanism according to claim 2, characterized in that: The fixed beam (1) is vertically arranged and has an active connecting rod hinge seat (11) and a driving cylinder hinge seat (12) at its upper and lower ends respectively. A cylinder housing connecting seat (13) is also provided at a position adjacent to the driving cylinder hinge seat (12) on the fixed beam (1). The housing of the driving cylinder (6) is rotatably connected to the cylinder housing connecting seat (13).

4. The battery box locking mechanism according to claim 2, characterized in that: The driven connecting rod (5), the driving connecting rod (4) and the piston rod end of the driving cylinder (6) are hinged at the same hinge axis, and the same hinge axis is located in the middle of the driving connecting rod (4). A limit groove (41) is provided on the side of the driving connecting rod (4). The driven connecting rod (5) is provided with a limit rod (51) vertically arranged with the driven connecting rod (5). When the clamping wheel (3) clamps the cross beam at the bottom of the battery box, the limit rod (51) is inserted into the limit groove (41).

5. The battery box locking mechanism according to claim 1, characterized in that: The clamping link (2) comprises a link body (21), wherein the upper and lower ends of the link body (21) are respectively provided with an upper link hinge portion (22) and a lower link hinge portion (23) extending toward the same side of the link body (21), wherein the end of the lower link hinge portion (23) away from the link body (21) constitutes a rotation fixed point for fixed-point rotation of the clamping link (2), the end of the upper link hinge portion (22) away from the link body (21) constitutes a clamping wheel mounting point for mounting a clamping wheel (3), and the end of the upper link hinge portion (22) close to the link body (21) constitutes a driven link hinge point for hingedly connecting a driven link (5).

6. The battery box locking mechanism according to claim 1, characterized in that: A spring (7) is connected between the clamping connecting rod (2) and the driven connecting rod (5), and the spring (7) has a tendency to keep the clamping connecting rod (2) in a clamped state.

7. A vehicle-mounted base, characterized in that: Including the battery box locking mechanism as described in any one of claims 1-6.

8. The vehicle-mounted base according to claim 7, characterized in that: It also comprises a bottom support frame (10), the battery box locking mechanism being arranged on the bottom support frame (10), and the bottom support frame (10) being further provided with a plurality of evenly arranged guide blocks (20) and a plurality of evenly arranged positioning pins (30).

Images