Cam hook lock mechanism

Abstract

The application discloses a cam hook locking mechanism and relates to the technical field of battery replacing equipment. The cam hook locking mechanism comprises a mounting plate, a driving assembly and a cam which is rotationally arranged on the mounting plate. The driving assembly is connected with the cam and is used for driving the cam to rotate and lock a connecting piece to the mounting plate. The driving assembly is used for driving the cam to rotate. When the cam rotates, the connecting piece can be hooked and locked or unlocked. The cam hook locking mechanism solves the problem that the traditional battery replacing equipment lacks a structure for locking a battery box, enhances the stability of the battery box in the battery replacing equipment, and is not prone to loosening and has high safety.

Description

Technical Field

[0001] This invention relates to the field of battery swapping equipment technology, and in particular to a cam hook locking mechanism. Background Technology

[0002] Battery-powered new energy vehicles represent the current direction of automotive development. Currently, new energy heavy-duty trucks are mainly used for logistics within industrial parks and for short- and medium-distance logistics. Due to their high power consumption and long charging time, battery swapping stations are commonly built to quickly replenish energy in order to save time. New energy passenger vehicles take more than 5 hours to charge slowly, and even fast charging takes 1-2 hours. Therefore, using the battery swapping mode can replenish energy in just a few minutes, greatly improving efficiency.

[0003] The battery swapping station will be equipped with several battery racks for charging the battery boxes. When a new energy heavy-duty truck comes, the old battery box will be removed from the new energy heavy-duty truck, and then the fully charged battery box will be placed into the new energy heavy-duty truck for direct use.

[0004] The technical solution disclosed in Chinese patent document (application number: 202122019525.8, patent title: A Novel Battery Swapping Equipment) is as follows: a tractor unit, a battery swapping platform, multiple base supports, and a battery swapping mechanism. The tractor unit has a saddle. The battery swapping platform includes a first platform, a second platform, and an intermediate connecting body connecting the first and second platforms. The intermediate connecting body is detachably connected to both the first and second platforms. The first platform has a platform body and a gooseneck connecting the platform body, and the gooseneck is detachably connected to the saddle via a traction pin. Each base support is set on the first and / or second platforms, and the base support is used to install the battery box. The battery swapping mechanism is set on the first and / or second platforms. When the intermediate connecting body is detached, a battery swapping channel is formed between the first and second platforms for the electric equipment to enter. The novel battery swapping equipment of this application utilizes automotive equipment technology and control technology to achieve rapid energy replenishment for electric vehicles, electric engineering equipment, and other electric machinery.

[0005] However, the battery swapping equipment in the aforementioned patent documents does not have a locking mechanism for the battery box, which makes the battery box prone to loosening in the battery swapping equipment, resulting in poor stability. This not only poses a safety hazard, but also may cause the charging port of the battery swapping equipment to fail to connect due to loosening, thus affecting the charging effect. Summary of the Invention

[0006] In view of the above, the present invention provides a cam hook locking mechanism that can lock the connecting parts, solving the problem of the lack of a locking structure for the battery box in traditional battery swapping equipment, enhancing the stability of the battery box in the battery swapping equipment, and providing high safety.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0008] A cam hook locking mechanism, comprising:

[0009] The drive assembly is equipped with a cam for rotation; the drive assembly is connected to the cam and is used to drive the cam to rotate so as to lock the connector to the mounting plate.

[0010] Furthermore, the cam is provided with an arc-shaped groove, and a locking hook is slidably connected to the arc-shaped groove; one end of the arc-shaped groove is the proximal end, and the other end of the arc-shaped groove is the distal end, and the straight-line distance between the distal end and the rotation center of the cam is greater than the straight-line distance between the proximal end and the rotation center of the cam;

[0011] When the cam rotates, when the locking hook is at the proximal end, the locking hook hooks the connector to lock it; when the locking hook is at the distal end, the locking hook separates from the connector to unlock it.

[0012] Furthermore, a protective cover is provided on the mounting plate, and the meshing position of the rack and the teeth is located inside the protective cover.

[0013] Furthermore, a first limiting block is provided on one side of the locking hook, and the first limiting block is fixed to the mounting plate; the first limiting block is provided with an inclined surface; during the rotation of the cam, when the locking hook moves from the proximal end to the distal end, the locking hook will move laterally along the inclined surface.

[0014] Furthermore, a second limiting block is provided on the other side of the locking hook, and the second limiting block is fixed to the mounting plate; the second limiting block is provided with a protrusion and an inclined position for the locking hook to move laterally; during the reverse rotation of the cam, when the locking hook moves from the distal end to the proximal end, the locking hook returns to the vertical state and hooks and locks the connecting piece, the first limiting block abuts against one side of the locking hook and the protrusion abuts against the other side of the locking hook.

[0015] Furthermore, the mounting plate is provided with a first pin, and the cam is rotatably connected to the first pin.

[0016] Furthermore, the lower edge of the mounting plate has a recessed position that matches the size of the connector, and the recessed position is located between the first limiting block and the second limiting block.

[0017] Furthermore, a second pin is slidably connected within the arc-shaped groove, and the upper end of the locking hook is clamped and connected to both ends of the second pin.

[0018] Furthermore, the cam is provided with an arc-shaped groove, which is an open slot, and the cam rotates to hook and lock the connector.

[0019] Furthermore, the drive assembly includes a rack and teeth disposed on the edge of the cam, the rack engaging with the teeth; movement of the rack interacts with the teeth, thereby causing the cam to rotate and lock the connector.

[0020] The beneficial effects of this invention are:

[0021] The mounting plate of this invention is provided with a drive assembly and a cam. The drive assembly is used to drive the cam to rotate. When the cam rotates, the locking hook can hook and lock or unlock the connecting parts. This solves the problem of the lack of a locking structure for the battery box in traditional battery swapping equipment, enhances the stability of the battery box in the battery swapping equipment, makes it less prone to loosening, and ensures high safety. Attached Figure Description

[0022] To more clearly illustrate the specific implementation methods, the accompanying drawings used in the description of the implementation methods will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is an overall diagram of the cam hook locking mechanism (at this time, the locking hook is at the proximal end);

[0024] Figure 2 This is an overall diagram of the cam hook locking mechanism (at this time, the locking hook is at the distal end);

[0025] Figure 3 It is the cam hook locking mechanism in Figure 1 Remove the locking hook while in the current state;

[0026] Figure 4 It is a 3D view of the cam and the locking hook;

[0027] Figure 5 This is an overall diagram of another embodiment of the cam hook locking mechanism.

[0028] Explanation of main component symbols

[0029]

[0030]

[0031] The following detailed embodiments will further illustrate this disclosure in conjunction with the above-described drawings. Detailed Implementation

[0032] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this disclosure; the described embodiments are merely a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0034] In various embodiments, for ease of description and not limitation of this disclosure, the term "connection" used in the patent application specification and claims is not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0035] Example 1

[0036] like Figures 1 to 4 As shown, a cam hook locking mechanism includes a mounting plate 1, on which a driving component and a cam 2 are rotatably mounted; the mounting plate 1 is provided with a first pin 9, and the cam 2 is rotatably connected to the first pin 9, thereby realizing that the cam 2 is rotatably connected to the mounting plate 1.

[0037] The drive assembly is connected to the cam 2 and is used to drive the cam 2 to rotate. Specifically, the mounting plate 1 is fixed in the battery swapping station or battery swapping equipment. The battery box of the new energy heavy-duty truck is equipped with a connector 4. The connector 4 is fixed by this cam hook locking mechanism, thereby achieving the purpose of fixing the battery box. The connector 4 is fixed to the battery box, and fixing the connector 4 fixes the battery box.

[0038] Cam 2 is provided with an arc-shaped groove 201, which is a closed slot, and a locking hook 3 is slidably connected to the arc-shaped groove 201; combined with Figure 4See, a second pin 10 is slidably connected within the arc-shaped groove 201. The upper end of the locking hook 3 is clamped and connected to both ends of the second pin 10, allowing the upper end of the locking hook 3 to slide within the arc-shaped groove 201. One end of the arc-shaped groove 201 is the proximal end 2011, and the other end is the distal end 2012. The linear distance between the distal end 2012 and the rotation center of the cam 2 is greater than the linear distance between the proximal end 2011 and the rotation center of the cam 2; that is, the linear distance between the distal end 2012 and the first pin 9 is greater than the linear distance between the proximal end 2011 and the first pin 9; that is, as shown... Figure 1 As shown, when the locking hook 3 is connected to the proximal end 2011 of the arc-shaped groove 201, the locking hook 3 will rise slightly under the pull of the cam 2, and when... Figure 2 As shown, when the locking hook 3 is connected to the distal end 2012 of the arc groove 201, the locking hook 3 will descend slightly.

[0039] The purpose of the above structure is that when the cam 2 rotates, when the locking hook 3 is at the proximal end 2011, the locking hook 3 hooks the connecting piece 4 and locks it. At this time, the battery box is locked in the battery swapping station or battery swapping equipment and cannot move. When the locking hook 3 is at the distal end 2012, the locking hook 3 separates from the connecting piece 4 and unlocks it. At this time, the battery box is unlocked and can move.

[0040] The drive assembly includes a rack 5 and teeth 202 on the edge of the cam 2. The rack 5 is meshed with the teeth 202. Therefore, when the rack 5 moves left and right, it drives the cam 2 to rotate by interacting with the teeth 202.

[0041] A protective cover 6 is provided on the mounting plate 1. The protective cover 6 covers the rack 5 and has an internal cavity for the rack 5 to be installed. The lower end of the protective cover 6 has an opening for the teeth 202 on the cam 2 to extend into and assemble with the rack 5. The purpose of the protective cover 6 is to ensure that the meshing position of the rack 5 and the teeth 202 is within the protective cover 6, preventing foreign objects from being drawn in and causing damage or affecting the normal operation of the mechanism.

[0042] The lower edge of the mounting plate 1 has a recess 101 that matches the size of the connector 4, and the connector 4 is inserted into the recess 101 for locking.

[0043] A first limiting block 7 is provided on one side of the locking hook 3, and the first limiting block 7 is welded and fixed to the mounting plate 1; the first limiting block 7 is provided with an inclined surface 701; during the rotation of the cam 2, when the locking hook 3 moves from the proximal end 2011 to the distal end 2012, as shown in the figure, the locking hook 3 is positioned such that... Figure 2 In the state shown, the locking hook 3 will move laterally along the inclined surface 701; at this time, the locking hook 3 releases the lock on the connector 4, and the connector 4 can be freely disengaged from the recessed position 101, that is, the battery box can be removed.

[0044] A second limiting block 8 is provided on the other side of the locking hook 3, and the second limiting block 8 is welded to the mounting plate 1; the second limiting block 8 is provided with a protrusion 801 and an inclined position 802 for the locking hook 3 to move laterally; the inclined position 802 is for the locking hook 3 to move laterally as follows. Figure 2 The state described is accommodated; during the reverse rotation of cam 2, when locking hook 3 moves from the distal end 2012 to the proximal end 2011, locking hook 3 returns to its original position. Figure 1 In the vertical position shown, the connector 4 is hooked and locked, and the connector 4 is locked in the recessed position 101, so the battery box cannot be moved. In this state, the first limiting block 7 abuts against one side of the locking hook 3, and the protrusion 801 abuts against the other side of the locking hook 3, so that the locking hook 3 cannot move left or right. The structure is compact and the locking effect is good.

[0045] The recessed position 101 is located between the first limiting block 7 and the second limiting block 8, and together they match the locking hook 3 to lock and limit the connecting piece 4.

[0046] Example 2

[0047] like Figure 5 The figure shown is an overall diagram of another embodiment of the cam hook locking mechanism. The difference between this embodiment and embodiment 1 is that the cam 2 is provided with an arc groove 201. The arc groove 201 is an open slot. The cam 2 rotates to hook the connector 4 into the open slot, thereby hooking and locking the connector 4.

[0048] The rack 5 can be driven by a cylinder or a hydraulic cylinder to move laterally. A limit guide wheel 11 is provided above the rack 5 to limit and guide the movement of the rack 5, thereby improving the smoothness of the rack 5's operation.

[0049] In the several specific embodiments provided in this disclosure, it will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this disclosure. Furthermore, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Terms such as "first," "second," etc., are used to denote names and do not indicate any particular order.

[0050] The above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this disclosure should not depart from the spirit and scope of the technical solutions of this disclosure.

Claims

1. A cam hook locking mechanism, characterized in that, include: The drive assembly is equipped with a cam for rotation; the drive assembly is connected to the cam and is used to drive the cam to rotate so as to lock the connector to the mounting plate; The cam is provided with an arc-shaped groove, and a locking hook is slidably connected to the arc-shaped groove; one end of the arc-shaped groove is the proximal end, and the other end of the arc-shaped groove is the distal end; the straight-line distance between the distal end and the rotation center of the cam is greater than the straight-line distance between the proximal end and the rotation center of the cam. When the cam rotates, when the locking hook is at the proximal end, the locking hook hooks the connector to lock it; when the locking hook is at the distal end, the locking hook separates from the connector to unlock it. A first limiting block is provided on one side of the locking hook, and the first limiting block is fixed to the mounting plate; the first limiting block is provided with an inclined surface; during the rotation of the cam, when the locking hook moves from the proximal end to the distal end, the locking hook will move laterally along the inclined surface; a second limiting block is provided on the other side of the locking hook, and the second limiting block is fixed to the mounting plate; the second limiting block is provided with a protrusion and an inclined position for the locking hook to move laterally; during the reverse rotation of the cam, when the locking hook moves from the distal end to the proximal end, the locking hook returns to a vertical state and hooks and locks the connector, the first limiting block abuts against one side of the locking hook and the protrusion abuts against the other side of the locking hook; The lower edge of the mounting plate has a recessed position that matches the size of the connector, and the recessed position is located between the first limiting block and the second limiting block; The drive assembly includes a rack and teeth disposed on the edge of the cam, the rack engaging with the teeth; the movement of the rack interacts with the teeth, thereby causing the cam to rotate and lock the connector.

2. The cam hook locking mechanism according to claim 1, characterized in that, The mounting plate is provided with a protective cover, and the meshing position of the rack and the teeth is located inside the protective cover.

3. The cam hook locking mechanism according to claim 2, characterized in that, The mounting plate is provided with a first pin, and the cam is rotatably connected to the first pin.

4. The cam hook locking mechanism according to claim 3, characterized in that, A second pin is slidably connected within the arc-shaped groove, and the upper end of the locking hook is clamped and connected to both ends of the second pin.

5. A cam hook locking mechanism according to claim 1, characterized in that, The cam is provided with an arc-shaped groove, which is an open slot. The cam rotates to hook and lock the connector.

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