Locking device and shovel

Abstract

The utility model discloses a locking device, be in the field of shovel carrier, be used for limiting annular part, wherein the adjusting shaft is equipped with spring, and the both ends of spring are respectively located between the limiting block and locking insert, when the locking device is unlocked, and the plug -in stick is located in the locking groove, and the locking insert passes through the perforation, and the spring is elongated. The device simple structure, easy operation maintenance has reduced the failure risk of locking device.

Description

Technical Field

[0001] This utility model relates to the field of loader technology, and more specifically, to a locking device and a loader. Background Technology

[0002] With the application and promotion of battery-powered loader machines, the securing and locking of battery packs plays a crucial role in the battery swapping efficiency and operational safety. Existing battery pack casings typically have annular components that are securely locked to the loader's frame via locking devices, allowing for quick assembly and disassembly. Current locking devices are generally hydraulic linkage mechanisms or locking cylinders, requiring power from the loader. If the entire vehicle malfunctions, the battery cannot be separated from the vehicle, increasing the difficulty and risk of battery swapping.

[0003] Among them, Chinese patent document (CN 119928655 A) provides a quick battery swapping device for underground pure electric loaders, which includes a battery mounting frame with battery units installed inside, a guide mechanism, a frame positioning component, and a discharge connector mounted on the loader frame; the bottom of the battery unit is provided with a quick-connect connector A; the bottom of the battery mounting frame is provided with a positioning sleeve and a locking plate; the guide mechanism is provided with multiple guide plates to guide the battery mounting frame in the front-back and left-right directions; the frame positioning component includes a positioning post and a locking cylinder mounted on the frame; the discharge connector is provided with a quick-connect connector B, which has a male-female mating connection structure with the quick-connect connector A to electrically connect the battery unit to the loader operating system.

[0004] The locking cylinder used in the above-mentioned device is at risk of failure when the loader's power is depleted.

[0005] The relevant technologies do not provide effective solutions to the above problems. Utility Model Content

[0006] To address the problem that the locking device of the loader battery pack may fail due to lack of power supply in related technologies, some embodiments of this application provide a locking device for limiting an annular member, including: a limiting clamping plate comprising two opposing first clamping plates and a second clamping plate, wherein the first clamping plate and the second clamping plate are formed with perforations;

[0007] A limiting cylinder is fixed to the side of the first clamping plate away from the second clamping plate. A limiting block is fixed to the end of the limiting cylinder away from the first clamping plate. A locking groove is formed on the side of the limiting block facing the outside of the limiting cylinder, which passes through the limiting block in the axial direction.

[0008] The movable component includes an adjusting shaft and a locking insert, the locking insert being fixed to one end of the adjusting shaft; a portion of the adjusting shaft surface is connected to a rod extending axially, the rod's structure being adapted to the locking groove and capable of passing through and exiting the locking groove, one end of the rod being connected to a top block, the top block being capable of abutting against the end face of the limiting block; the adjusting shaft passes through the limiting cylinder, and the locking insert is movably disposed within the limiting cylinder and the through hole;

[0009] The adjusting shaft is fitted with a spring, with both ends of the spring abutting between the limiting block and the locking plug, respectively. When the locking device is unlocked, the insert rod abuts against the outside of the limiting block, the locking plug is located inside the limiting cylinder, and the spring is compressed. When the locking device is locked, the insert rod is located inside the locking groove, the locking plug passes through the through hole, and the spring is extended.

[0010] Furthermore, the limiting block also forms a limiting recess, which intersects with the locking groove. The shape of the limiting recess is adapted to the top surface of the insertion rod, and the limiting recess is used to abut against the end face of the insertion rod.

[0011] Furthermore, the angle between the limiting recess and the locking groove is 90°, and the limiting recess and the locking groove together form a "+" shape.

[0012] Furthermore, the adjusting shaft is provided with two insertion rods, and the included angle between the radial sections of the two insertion rods is 180°.

[0013] Furthermore, an adjustment handle is fixed to the end of the adjustment shaft away from the locking plug. The adjustment handle is in the shape of an "I" and its extension direction is perpendicular to the axis of the adjustment shaft.

[0014] Furthermore, it also includes a protective cylinder, which is fixed to the end of the limiting cylinder away from the first clamping plate, and a portion of the adjusting shaft is located inside the protective cylinder.

[0015] Furthermore, a cylindrical mounting plate is fixed to one end of the limiting block near the spring, and one end of the spring is fitted onto the mounting plate.

[0016] Furthermore, the locking plug is cylindrical, with a cylindrical groove formed at one end, and one end of the spring is inserted into the groove.

[0017] To achieve the above objectives, some embodiments of this application also provide a loader, including a battery pack, a frame, and any of the above-described locking devices. The locking device is fixedly connected to the frame, and an annular member is fixedly connected to the bottom of the battery pack. The annular member is located between the first clamping plate and the second clamping plate. The locking plug is inserted into the through hole and the annular member, and the battery pack is detachably connected to the frame through the locking device.

[0018] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0019] The locking device of this application can effectively lock and disassemble the annular component on the battery pack housing without relying on other systems of the loader, further ensuring the smooth replacement or installation of the battery pack. Simultaneously, the spring in this locking device is only compressed during unlocking, and rebounds quickly and responsively during locking. After locking, the spring is in a relatively relaxed state with low deformation. This design makes the spring less prone to fatigue damage, thereby extending the service life of the locking device. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0021] Figure 1 This is a schematic diagram of a locking device structure according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of a locking device according to an embodiment of the present application, showing the interior of the limiting cylinder;

[0023] Figure 3 This is a schematic diagram of the limiting block structure of a locking device according to an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the movable component structure of the limiting block of a locking device according to an embodiment of this application;

[0025] Figure 5 This is a cross-sectional structural diagram of the locking device in the application state (unlocked) according to an embodiment of this application;

[0026] Figure 6 This is a cross-sectional structural diagram of the locking device in the application state (locked) according to an embodiment of this application;

[0027] Figure 7 This is a schematic diagram of a locking device structure according to an embodiment of this application;

[0028] Label Explanation:

[0029] 100. Limiting clamp; 110. First clamp; 120. Second clamp; 130. Perforation;

[0030] 200. Limiting cylinder; 210. Limiting block; 211. Locking groove; 212. Limiting recess; 220. Locking platform;

[0031] 300. Movable component; 310. Adjusting shaft; 311. Insert rod; 312. Top block; 320. Locking insert; 321. Groove; 330. Adjusting handle;

[0032] 400. Spring;

[0033] 500. Support frame;

[0034] 600. Protective casing. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate for the embodiments of this application described herein.

[0037] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0038] This application provides a locking device for limiting an annular member, the locking device including a limiting clamp 100, a limiting cylinder 200 and a movable component 300.

[0039] The limiting clamp 100 includes two opposing first clamps 110 and second clamps 120. Specifically, a space for accommodating the annular member is formed between the surfaces of the first clamps 110 and the second clamps 120. The first clamps 110 and the second clamps 120 are formed with through holes 130. Specifically, when the annular member is placed between the first clamps 110 and the second clamps 120, the annular hole and the through hole 130 of the annular member overlap or substantially overlap.

[0040] like Figure 2 , 3 As shown, the limiting cylinder 200 is fixed to the side of the first clamping plate 110 away from the second clamping plate 120. The end of the limiting cylinder 200 away from the first clamping plate 110 is fixed with a limiting block 210. The side of the limiting block 210 facing the outside of the limiting cylinder 200 has a locking groove 211 that passes through the limiting block 210 in the axial direction.

[0041] It is worth noting that the axial and radial directions involved in this application are consistent with the axial and radial directions of the limiting cylinder 200.

[0042] like Figure 2 , 4 As shown, the movable component 300 includes an adjustment shaft 310 and a locking insert 320, with the locking insert 320 fixed to one end of the adjustment shaft 310. A portion of the axial surface of the adjustment shaft 310 is connected to a rod 311. The rod 311 extends axially, and its structure is adapted to the locking groove 211, allowing it to pass through the locking groove 211. For example, if the locking groove 211 is a straight groove, the rod 311 is also a straight rod, allowing the rod 311 to pass into the locking groove 211.

[0043] like Figure 2 , 4 As shown, one end of the insertion rod 311 is connected to a top block 312, which can abut against the end face of the limiting block 210; the adjusting shaft 310 passes through the limiting cylinder 200, and the locking plug 320 is movably disposed in the limiting cylinder 200 and the through hole 130. Specifically, the end face of the top block 312 is larger than the end face of the locking groove 211.

[0044] Among them, such as Figures 1 to 5 As shown, the adjusting shaft 310 is fitted with a spring 400, with both ends of the spring 400 abutting between the limit block 210 and the locking plug 320, respectively; Figures 1 to 4As shown in Figure 6, when the locking device is unlocked, the insert rod 311 abuts against the outside of the limit block 210, the locking plug 320 is located inside the limit cylinder 200, and the spring 400 is compressed; when the locking device is locked, the insert rod 311 is located inside the locking groove 211, the locking plug 320 passes through the through hole 130, and the spring 400 extends. For details, refer to... Figure 6 When the annular part is located within the limiting clamp 100, the locking plug 320 passes through both the through hole 130 and the annular hole of the annular part, thereby achieving multi-directional limiting of the annular part.

[0045] Therefore, when the user needs to unlock, they can pull the adjusting shaft 310 to pull the insert rod 311 out of the locking groove 211, and the locking plug 320 will also be pulled out of the through hole 130 at the same time. The locking plug 320 enters the limiting cylinder 200. The user then rotates the adjusting shaft 310 to push the insert rod 311 against the outside of the limiting block 210. At this time, the locking plug 320 remains inside the limiting cylinder 200. When the user needs to lock, they can rotate the adjusting shaft 310 to align the insert rod 311 with the locking groove 211, insert the insert rod 311 into the locking groove 211, and push the top block 312 against the outside of the limiting block 210. The locking plug 320 then passes through the through hole 130, completing the locking action.

[0046] The locking device of this application can effectively lock and disassemble the annular part on the battery pack housing without relying on other systems of the loader, further ensuring the smooth replacement or installation of the battery pack. Meanwhile, the spring 400 in this locking device is only compressed during unlocking, and quickly rebounds during locking, responding promptly. After locking, the spring 400 is in a relatively relaxed state with low deformation. This design makes the spring 400 less prone to fatigue damage, thereby extending the service life of the locking device.

[0047] Preferred, such as Figure 3 As shown, the limiting block 210 also forms a limiting recess 212, which intersects with the locking groove 211. The shape of the limiting recess 212 is adapted to the top surface of the insertion rod 311. The limiting recess 212 is used to hold the end face of the insertion rod 311. When unlocking, the insertion rod 311 is fixed in the limiting groove to prevent the insertion rod 311 from sliding back into the locking groove 211, thereby reducing the safety risk.

[0048] Specifically, the angle between the limiting recess 212 and the locking groove 211 is 90°, and the combination of the limiting recess 212 and the locking groove 211 forms a "+" shape. This design allows the user to control the position of the insertion rod 311 more accurately.

[0049] More specifically, such as Figure 4 As shown, the adjusting shaft 310 is equipped with two insert rods 311, and the included angle between the radial sections of the two insert rods 311 is 180°. The structure is simple and highly operable.

[0050] Furthermore, such as Figure 2 As shown, an adjustment handle 330 is fixed at the end of the adjustment shaft 310 away from the locking plug 320. The adjustment handle 330 is in the shape of an "I". The extension direction of the adjustment handle 330 is perpendicular to the axis of the adjustment shaft 310, which makes it convenient for the user to apply force.

[0051] As an optional solution, such as Figure 1 As shown, the locking device includes a support frame 500, through which the side of the adjusting shaft 310 near the handle passes. The support frame 500 can provide certain support for the adjusting shaft 310. Specifically, the support frame 500 is fixed on the frame of the loader.

[0052] Preferred, such as Figure 7 As shown, the locking device of this application also includes a protective cylinder 600, which is fixed to the end of the limiting cylinder 200 away from the first clamping plate 110. A portion of the adjusting shaft 310 is located inside the protective cylinder 600, thereby minimizing the risk of the adjusting shaft 310 being corroded by dust.

[0053] Among them, such as Figure 2 As shown, a cylindrical locking platform 220 is fixed to one end of the limiting block 210 near the spring 400. One end of the spring 400 is fitted onto the locking platform 220. The cylindrical locking platform 220 will not interfere with the movement of the insertion rod 311 and can limit the end of the spring 400, guiding the spring 400 to move smoothly.

[0054] Preferably, refer to Figure 2 As shown, the locking plug 320 is cylindrical, and a columnar groove 321 is formed at one end of the locking plug 320. One end of the spring 400 is inserted into the groove 321. The groove 321 can further prevent the spring 400 from wobbling radially, so that the locking device can be stable.

[0055] As a specific solution, refer to Figure 1 , 5 As shown, this application also provides a loader, including a battery pack, a frame, and the locking device mentioned in the above-mentioned solution. The locking device is fixedly connected to the frame, and an annular member is fixedly connected to the bottom of the battery pack. The annular member is located between the first clamping plate 110 and the second clamping plate 120. A locking plug is inserted into the through hole 130 and the annular member. The battery pack is detachably connected to the frame through the locking device. This loader uses a purely mechanical locking device to lock the battery pack. The structure is simple, easy to operate and maintain, and its structure reduces the risk of locking failure.

[0056] In this application, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0057] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A locking device for restricting an annular member, characterized in that, include: The limiting clamp includes two opposing first clamps and second clamps, and the first clamps and second clamps are formed with through holes; A limiting cylinder is fixed to the side of the first clamping plate away from the second clamping plate. A limiting block is fixed to the end of the limiting cylinder away from the first clamping plate. A locking groove is formed on the side of the limiting block facing the outside of the limiting cylinder, which passes through the limiting block in the axial direction. The movable component includes an adjusting shaft and a locking insert, the locking insert being fixed to one end of the adjusting shaft; a portion of the adjusting shaft surface is connected to a rod extending axially, the rod's structure being adapted to the locking groove and capable of passing through and exiting the locking groove, one end of the rod being connected to a top block, the top block being capable of abutting against the end face of the limiting block; the adjusting shaft passes through the limiting cylinder, and the locking insert is movably disposed within the limiting cylinder and the through hole; The adjusting shaft is fitted with a spring, with both ends of the spring abutting between the limiting block and the locking plug, respectively. When the locking device is unlocked, the insert rod abuts against the outside of the limiting block, the locking plug is located inside the limiting cylinder, and the spring is compressed. When the locking device is locked, the insert rod is located inside the locking groove, the locking plug passes through the through hole, and the spring is extended.

2. The locking device according to claim 1, characterized in that: The limiting block also forms a limiting recess, which intersects with the locking groove. The shape of the limiting recess is adapted to the top surface of the insertion rod, and the limiting recess is used to abut against the end face of the insertion rod.

3. A locking device according to claim 2, characterized in that: The angle between the limiting recess and the locking groove is 90°, and the limiting recess and the locking groove together form a "+" shape.

4. A locking device according to claim 3, characterized in that: The adjusting shaft is provided with two insert rods, and the included angle between the radial sections of the two insert rods is 180°.

5. A locking device according to claim 4, characterized in that: An adjustment handle is fixed to the end of the adjustment shaft away from the locking plug. The adjustment handle is in the shape of an "I" and its extension direction is perpendicular to the axis of the adjustment shaft.

6. A locking device according to claim 1, characterized in that: It also includes a protective sleeve, which is fixed to the end of the limiting sleeve away from the first clamping plate, and a portion of the adjusting shaft is located inside the protective sleeve.

7. A locking device according to claim 1, characterized in that: A cylindrical mounting plate is fixed to one end of the limiting block near the spring, and one end of the spring is fitted onto the mounting plate.

8. A locking device according to claim 1 or 7, characterized in that: The locking plug is cylindrical, with a cylindrical groove formed at one end, and one end of the spring is inserted into the groove.

9. A loader, characterized in that: The device includes a battery pack, a frame, and a locking device as described in any one of claims 1 to 8, wherein the locking device is fixedly connected to the frame, and an annular member is fixedly connected to the bottom of the battery pack, the annular member being located between the first clamping plate and the second clamping plate, the locking plug being inserted into the through hole and the annular member, and the battery pack being detachably connected to the frame via the locking device.

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