A quick-mountable and detachable power storage device

Abstract

The utility model relates to a quick disassembly and assembly type electricity storage device, including casing and handle, the both ends of casing inside install locking mechanism, locking mechanism is connected with the dolly mechanism, the both ends of handle pass through casing with dolly mechanism movable connection, drive dolly mechanism movement through rotating handle, and then drive locking mechanism switches between locking state and unlocking state. The utility model has the advantages of realizing quick installation and disassembly, improving the convenience of operation and good connection stability.

Description

Technical Field

[0001] This utility model relates to the field of battery pack connection technology, specifically to a quick-release energy storage device. Background Technology

[0002] In production and practical use, many electrical devices (such as power tools, portable electronic devices, energy storage systems, etc.) rely on detachable energy storage devices for power. To facilitate replacement or charging, these energy storage devices typically need to be quick to install and remove, while ensuring the stability and reliability of the connection to the electrical equipment.

[0003] Existing methods for securing energy storage devices typically employ screw locking or snap-fit ​​structures. While screw fixing provides a secure connection, the process of installation and removal is cumbersome, requiring tools such as screwdrivers, which reduces operational efficiency. Conversely, while snap-fit ​​structures require no tools, they may suffer from insufficient locking force or difficulty in unlocking, impacting the user experience. Therefore, a solution is needed that allows for both quick installation and removal while ensuring a secure connection, thereby improving user convenience and equipment reliability. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-installation and disassembly energy storage device that enables rapid installation and disassembly, improves the convenience of operation, and has good connection stability.

[0005] A quick-release energy storage device includes a housing and a handle. Locking mechanisms are installed at both ends of the inner side of the housing. The locking mechanisms are connected to a toggle mechanism. Both ends of the handle pass through the housing and are movably connected to the toggle mechanism. By rotating the handle, the toggle mechanism is moved, thereby driving the locking mechanism to switch between a locked state and an unlocked state.

[0006] In the above scheme, the rotational motion of the handle transmits torque to the actuating mechanism inside the housing through the connection points at both ends of the handle and the actuating mechanism, forming the first stage of transmission. The actuating mechanism converts the rotational motion of the handle into the linear displacement or angular deflection of the locking mechanism, completing the second stage of motion transformation. The locking mechanism generates mechanical displacement under the drive of the actuating mechanism, and its locking component extends or retracts into the housing to achieve engagement or disengagement with external devices such as the host. When the handle is rotated in the forward direction, the locking mechanism is driven into the locked state, and when rotated in the reverse direction, the locking mechanism is unlocked, forming a bidirectional controllable operation logic.

[0007] Furthermore, the locking mechanism includes a mounting plate, a locking tongue, and elastic elements. The mounting plate is mounted on the housing, and at least two of the elastic elements are connected to the mounting plate in a direction perpendicular to the mounting plate. The locking tongue is pressed against the elastic elements and is movably connected to the mounting plate.

[0008] In the above scheme, elastic elements such as springs or leaf springs are connected to the latch along the direction of the vertical mounting plate, so that the latch remains in the extended locked position in its natural state. When installing the energy storage device, the latch is pressed down by the linkage mechanism of the handle, which actively compresses the elastic element to make the latch fully retract. When the latch is aligned with the lock hole of the host or other external equipment, the handle is rotated in the opposite direction, and the elastic element pushes the latch out to complete the automatic locking.

[0009] Furthermore, the locking tongue includes a main body, a first limiting part, and a second limiting part. The first limiting part and the second limiting part are respectively located at both ends of the main body. The first limiting part and the second limiting part are in movable contact with the inner wall of the housing. The first limiting part and the second limiting part are respectively provided with a first extension and a second extension that pass through the housing.

[0010] In the above scheme, when the first extension and the second extension extend out of the housing, the locking mechanism is in a locked state. At this time, the first limiting part and the second limiting part abut against the inner wall of the housing. When the first extension and the second extension retract, the locking mechanism is in an unlocked state. At this time, the first limiting part and the second limiting part move away from the housing. The first limiting part and the second limiting part can improve the positioning accuracy of the first extension and the second extension.

[0011] Furthermore, the ends of the first extension and the second extension are provided with a first chamfer.

[0012] In the above scheme, the first chamfer at the ends of the first extension and the second extension can improve the guiding performance of the latch, so that the first extension and the second extension can achieve a smooth transition when they extend into or out of the host docking hole.

[0013] Furthermore, the mounting plate is provided with at least two positioning rods, and the lock tongue is provided with a connecting hole opposite to the positioning rod, through which the positioning rod moves.

[0014] In the above scheme, the positioning rod moving through the connecting hole can ensure higher positioning accuracy when the bolt moves back and forth, and at least two positioning rods can prevent the bolt from deflecting, thereby ensuring the stability of the unlocking or locking process of the locking mechanism.

[0015] Furthermore, the actuating mechanism includes a cam block and an actuating element. One end of the cam block is connected to the handle, and the other end of the cam block is connected to the actuating element. The actuating element is rotatably connected to the mounting plate.

[0016] In the above scheme, the rotational motion of the handle is converted into the swinging motion of the actuating element by the cam block, which in turn drives the locking mechanism. Specifically, when the handle is rotated, the eccentric contour of the cam block pushes the actuating element to rotate around the mounting plate. The actuating element then drives the locking tongue to move back and forth in a straight line perpendicular to the mounting plate, thereby achieving the switching between the locking and unlocking states. The structure is simple and easy to process and install.

[0017] Furthermore, the actuating component includes an integrally formed crank and actuating block, the crank being connected to the cam block, and the main body having a protrusion that movably abuts against the actuating block.

[0018] In the above scheme, when the handle is rotated, the cam block drives the crank to swing, which in turn drives the actuating block to push the protrusion of the main body, thereby bringing the latch closer to the mounting plate. At this time, the elastic element is compressed. When the handle is rotated in the opposite direction to reset, the force of the actuating block pushing the protrusion is released, and the elastic element resets and pushes the latch away from the mounting plate. The one-piece crank and actuating block design greatly improves the structural strength and motion accuracy of the actuating element.

[0019] Furthermore, the actuating block is elliptical in shape, and the two protrusions respectively move and abut against the two sides of the actuating block. The positions where the protrusions move and abut against the actuating block are provided with arc-shaped second chamfers.

[0020] In the above scheme, the symmetrical layout of the elliptical actuating block and the double protrusions forms a stable bidirectional force transmission structure, which can ensure that the movement trajectory of the latch is more stable and accurate. The arc-shaped second chamfer is set at the position where the protrusion and the actuating block movably abut, which can greatly improve the smoothness of the actuating block moving the latch and reduce the wear between the protrusion and the actuating block.

[0021] Furthermore, the crank includes a vertical rod and a horizontal rod, the vertical rod has a slot, the cam block is connected to the slot, and the actuating block is connected to the horizontal rod.

[0022] In the above scheme, the crank adopts a composite structure design of vertical rod and horizontal rod. The precise conversion of motion transmission is achieved through the cooperation of the slot and cam block, making the operating torque distribution more uniform. The slot connection of the vertical rod provides a stable transmission fulcrum for the cam block, effectively avoiding offset and jamming during the movement. The direct connection between the horizontal rod and the toggle block forms a short lever arm transmission structure, which greatly improves the response speed and action reliability of the toggle mechanism. The overall design takes into account both structural strength and motion flexibility, making the locking and unlocking actions more crisp and clean, while reducing the dependence on precision machining and improving production feasibility.

[0023] Furthermore, the housing includes a base and a top cover, the top cover being disposed on the base, the handle being rotatably connected to the top cover, and the locking mechanism being connected to the base.

[0024] In the above solution, the housing adopts a split base and top cover design, which makes the assembly and maintenance of the internal mechanism more convenient. The rotating connection structure between the top cover and the handle ensures that the operating torque is directly transmitted to the locking mechanism, reducing intermediate losses. The rigid connection between the base and the locking mechanism provides stable force support, effectively improving the overall structure's shock resistance and durability. The modular design allows the base and top cover to be optimized independently, which not only ensures the aesthetic appearance but also enhances the reliability of the internal functional components. The split structure also facilitates the rapid adaptation of locking mechanisms of different specifications, enhancing the product's expandability and adaptability.

[0025] This utility model discloses a quick-installation and disassembly type energy storage device, which has the advantages of enabling rapid installation and disassembly, improving operational convenience, and providing good connection stability. The rotational motion of the handle transmits torque to the actuating mechanism inside the housing through the connection points at both ends of the handle and the actuating mechanism, forming the first stage of transmission. The actuating mechanism converts the rotational motion of the handle into linear displacement or angular deflection of the locking mechanism, completing the second stage of motion transformation. The locking mechanism generates mechanical displacement under the drive of the actuating mechanism, and its locking component extends or retracts into the housing, realizing engagement or disengagement with external devices such as the host. Rotating the handle in the forward direction drives the locking mechanism into the locked state, while rotating in the reverse direction unlocks it, forming a bidirectional controllable operating logic. Attached Figure Description

[0026] Figure 1 This is a perspective view of a quick-release energy storage device according to an embodiment.

[0027] Figure 2 This is a schematic diagram showing the connection between the actuating mechanism, the locking mechanism, and the handle in one embodiment.

[0028] Figure 3 This is a schematic diagram showing the connection between the actuating mechanism and the locking mechanism in one embodiment.

[0029] Figure 4 This is a structural diagram of a locking mechanism according to one embodiment.

[0030] Figure 5 This is a top view of a locking mechanism according to one embodiment.

[0031] Figure 6 This is a schematic diagram of a toggle mechanism according to one embodiment.

[0032] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Top cover; 12. Base; 2. Handle; 3. Actuating mechanism; 31. Cam block; 32. Actuating element; 321. Crank; 3211. Vertical rod; 3212. Horizontal rod; 322. Actuating element; 4. Locking mechanism; 41. Mounting plate; 411. Positioning rod; 42. Locking tongue; 421. Main body; 422. First limiting part; 423. Second limiting part; 424. First extension part; 425. Second extension part; 426. Connecting hole; 427. Protrusion; 43. Elastic element; 5. First chamfer; 6. Second chamfer; 7. Groove. Detailed Implementation

[0033] The present invention provides a quick-assembly and disassembly type energy storage device in further detail below with reference to specific embodiments and accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown in a preferred embodiment, the quick-release energy storage device of this utility model includes a housing 1 and a handle 2. Locking mechanisms 4 are installed at both ends of the inner side of the housing 1, and the locking mechanisms 4 are connected to a toggle mechanism 3. The two ends of the handle 2 pass through the housing 1 and are movably connected to the toggle mechanism 3. Rotating the handle 2 drives the toggle mechanism 3, thereby driving the locking mechanism 4 to switch between a locked state and an unlocked state. The handle 2 can be connected to the toggle mechanism 3 via screws or other fasteners. The rotational movement of the handle 2 transmits torque to the toggle mechanism 3 inside the housing 1 through the connection points at both ends with the toggle mechanism 3, forming the first stage of transmission. The toggle mechanism 3 converts the rotational movement of the handle 2 into a linear displacement or angular deflection of the locking mechanism 4, completing the second stage of motion transformation. The locking mechanism 4 generates mechanical displacement under the drive of the toggle mechanism 3, and its locking component extends or retracts from the housing 1, achieving engagement or disengagement with external devices such as the host. Rotating the handle 2 in the forward direction drives the locking mechanism 4 into a locked state, while rotating it in the reverse direction unlocks it, forming a bidirectional controllable operating logic.

[0035] In this embodiment, components such as the battery pack and PCB are installed inside the housing 1 to form an energy storage device. Through the linkage design of the handle 2 and the toggle mechanism 3, the user only needs to operate the handle 2 to simultaneously control the locking mechanisms 4 on both sides, realizing one-click quick assembly and disassembly of the energy storage device, which greatly improves the efficiency of disassembly and installation. At the same time, the locking mechanism 4 is built into the inside of the housing 1, with a compact structure and intuitive operation, which avoids the risk of accidental activation of external locks and maintains the simplicity of the device's appearance. In addition, the handle 2 has both carrying and locking functions, which simplifies the structure and reduces manufacturing costs. The overall design takes into account practicality, convenience and economy.

[0036] like Figure 2 and Figure 3As shown, in some embodiments, the locking mechanism 4 includes a mounting plate 41, a latch 42, and elastic elements 43. The mounting plate 41 is mounted on the housing 1. At least two elastic elements 43 are connected to the mounting plate 41 in a direction perpendicular to the mounting plate 41. The latch 42 is pressed against the elastic elements 43 and is movably connected to the mounting plate 41. Springs or sheet springs, etc., are connected to the latch 42 in a direction perpendicular to the mounting plate 41, so that the latch 42 remains in the extended locked position in its natural state. When installing the energy storage device, the latch 42 is pressed down by the lever 2 in conjunction with the toggle mechanism 3, actively compressing the elastic elements 43 to fully retract the latch 42. When the latch 42 is aligned with the lock hole of the host or other external device, the lever 2 is rotated in the opposite direction, and the elastic elements 43 push the latch 42 out to complete the automatic locking.

[0037] like Figure 3 and Figure 4 As shown, in some embodiments, the locking tongue 42 includes a main body 421, a first limiting part 422, and a second limiting part 423. The first limiting part 422 and the second limiting part 423 are located at opposite ends of the main body 421. The first limiting part 422 and the second limiting part 423 are in movable contact with the inner wall of the housing 1. The first limiting part 422 and the second limiting part 423 are respectively provided with a first extension part 424 and a second extension part 425 passing through the housing 1. When the first extension part 424 and the second extension part 425 extend out of the housing 1, the locking mechanism 4 is in a locked state, and at this time the first limiting part 422 and the second limiting part 423 are in contact with the inner wall of the housing 1. When the first extension part 424 and the second extension part 425 retract, the locking mechanism 4 is in an unlocked state, and at this time the first limiting part 422 and the second limiting part 423 are away from the housing 1. The first limiting part 422 and the second limiting part 423 can improve the positioning accuracy of the first extension part 424 and the second extension part 425.

[0038] In this embodiment, the first limiting part 422, the second limiting part 423, the first extension part 424 and the second extension part 425 are all cylindrical. External devices such as the host provide circular holes that match the shape of the first extension part 424 and the second extension part 425, providing a uniform sliding contact surface in the entire circumference, so that the locking tongue 42 maintains a stable linear trajectory in reciprocating motion, effectively preventing deflection or jamming.

[0039] like Figure 3 and Figure 4 As shown, in some embodiments, the ends of the first extension 424 and the second extension 425 are provided with a first chamfer 5. Providing the ends of the first extension 424 and the second extension 425 with the first chamfer 5 can improve the guiding performance of the latch 42, so that the first extension 424 and the second extension 425 can achieve a smooth transition when they extend into or exit the host docking hole.

[0040] like Figure 4 and Figure 5 As shown, in some embodiments, the mounting plate 41 is provided with at least two positioning rods 411, and the latch 42 is provided with a connecting hole 426 opposite to the positioning rods 411. The positioning rods 411 move through the connecting hole 426. The positioning rods 411 moving through the connecting hole 426 can ensure higher positioning accuracy when the latch 42 moves back and forth. At least two positioning rods 411 can prevent the latch 42 from deflecting, thereby ensuring the stability of the unlocking or locking process of the locking mechanism 4. In this embodiment, the positioning rods 411 have a circular cross-section.

[0041] like Figure 3 As shown, in some embodiments, the actuating mechanism 3 includes a cam block 31 and an actuating element 32232. One end of the cam block 31 is connected to the handle 2, and the other end of the cam block 31 is connected to the actuating element 32232. The actuating element 32232 is rotatably connected to the mounting plate 41. The cam block 31 converts the rotational motion of the handle 2 into the swinging motion of the actuating element 32232, thereby driving the locking mechanism 4. Specifically, when the handle 2 is rotated, the eccentric contour of the cam block 31 pushes the actuating element 32232 to rotate around the mounting plate 41. The actuating element 32232 then drives the locking tongue 42 to move back and forth in a straight line perpendicular to the mounting plate 41, realizing the switching between the locking and unlocking states. The structure is simple and convenient for processing and installation.

[0042] like Figure 3 and Figure 6 As shown, in some embodiments, the actuating element 32232 includes an integrally formed crank 321 and a toggle block. The crank 321 is connected to the cam block 31, and the main body 421 is provided with a protrusion 427 that movably abuts against the toggle block. When the handle 2 rotates, the cam block 31 drives the crank 321 to swing, causing the toggle block to push the protrusion 427 of the main body 421, thereby causing the latch 42 to approach the mounting plate 41. At this time, the elastic element 43 is compressed. When the handle 2 rotates in the opposite direction to reset, the force of the toggle block pushing the protrusion 427 is released, and the elastic element 43 resets and pushes the latch 42 away from the mounting plate 41. The integrally formed crank 321 and toggle block design greatly improves the structural strength and motion accuracy of the actuating element 32232.

[0043] like Figure 3 and Figure 6 As shown, in some embodiments, the actuating block is elliptical, with two protrusions 427 respectively abutting against the two sides of the actuating block. An arc-shaped second chamfer 6 is provided at the position where the protrusions 427 abut against the actuating block. The symmetrical arrangement of the elliptical actuating block and the two protrusions 427 forms a stable bidirectional force transmission structure, ensuring a smoother and more precise movement trajectory of the latch 42. The arc-shaped second chamfer 6 at the position where the protrusions 427 abut against the actuating block significantly improves the smoothness of the actuating block's movement of the latch 42 and reduces wear between the protrusions 427 and the actuating block.

[0044] Specifically, when the two sides of the toggle block rotate toward the two protrusions 427, they can simultaneously abut against the two protrusions 427 to press down the latch 42. This design ensures greater stability when the latch 42 is toggleed.

[0045] like Figure 6 As shown, in some embodiments, the crank 321 includes a vertical rod 3211 and a horizontal rod 3212. The vertical rod 3211 has a slot 7, the cam block 31 is connected to the slot 7, and the actuating block is connected to the horizontal rod 3212. The crank 321 adopts a composite structure design of the vertical rod 3211 and the horizontal rod 3212. The precise conversion of motion transmission is achieved through the cooperation of the slot 7 and the cam block 31, making the operating torque distribution more uniform. The slot 7 connection of the vertical rod 3211 provides a stable transmission fulcrum for the cam block 31, effectively avoiding offset and jamming during the movement. The direct connection between the horizontal rod 3212 and the actuating block forms a short lever arm transmission structure, which greatly improves the response speed and action reliability of the actuating mechanism 3. The overall design takes into account both structural strength and motion flexibility, making the locking and unlocking actions more crisp and clean, while reducing the dependence on precision machining and improving production feasibility.

[0046] Reference Figure 4 and Figure 5 The cam block 31 has a stepped pin at the end away from the handle 2. The stepped pin can directly pass through the slot 7 and engage with the crank 321. The structure is simple and easy to process and assemble.

[0047] like Figure 1 and Figure 2 As shown, in some embodiments, the housing 1 includes a base 12 and a top cover 11, with the top cover 11 covering the base 12. The handle 2 is rotatably connected to the top cover 11, and the locking mechanism 4 is connected to the base 12. The housing 1 adopts a split design for the base 12 and the top cover 11, making the assembly and maintenance of the internal mechanism more convenient. The rotatable connection structure between the top cover 11 and the handle 2 ensures that the operating torque is directly transmitted to the locking mechanism 4, reducing intermediate losses. The top cover 11 is provided with a placement groove and a through hole, and the handle 2 can be embedded in the placement groove, thereby saving the space occupied by the energy storage device. The end of the handle 2 can pass through the through hole and connect to the cam block 31. The rigid connection between the base 12 and the locking mechanism 4 provides stable force support, effectively improving the shock resistance and durability of the overall structure. The modular design allows the base 12 and the top cover 11 to be optimized independently, which can ensure the aesthetic appearance and enhance the reliability of the internal functional components. The split structure also provides convenience for the rapid adaptation of different specifications of the locking mechanism 4, enhancing the product's expandability and adaptability.

[0048] The present invention discloses the working principle and process of a quick-release and detachable energy storage device. When it is necessary to connect the energy storage device to external devices such as the host, rotating the handle 2 in the forward direction makes the handle 2 stand upright. The handle 2 drives the cam block 31 to rotate, and the cam block 31 drives the actuating block to deflect, thereby causing the locking tongue 42 to move towards the mounting block. The elastic element 43 is compressed, and the first extension 424 and the second extension 425 retract into the housing 1. After the energy storage device is placed, rotating the handle 2 in the reverse direction makes the handle 2 reset. The force of the actuating block pushing the protrusion 427 is released, the elastic element 43 resets and pushes the locking tongue 42 away from the mounting plate 41, and the first extension 424 and the second extension 425 extend out of the housing 1 to connect with the interface of external devices such as the host.

[0049] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A quick-assembly and disassembly type energy storage device, characterized in that, The device includes a housing and a handle. Locking mechanisms are installed at both ends of the inner side of the housing. The locking mechanisms are connected to a toggle mechanism. Both ends of the handle pass through the housing and are movably connected to the toggle mechanism. By rotating the handle, the toggle mechanism is moved, thereby driving the locking mechanism to switch between a locked state and an unlocked state.

2. The quick-release energy storage device according to claim 1, characterized in that, The locking mechanism includes a mounting plate, a locking tongue, and elastic elements. The mounting plate is mounted on the housing. At least two of the elastic elements are connected to the mounting plate in a direction perpendicular to the mounting plate. The locking tongue is pressed against the elastic elements and is movably connected to the mounting plate.

3. The quick-release energy storage device according to claim 2, characterized in that, The latch includes a main body, a first limiting part and a second limiting part. The first limiting part and the second limiting part are located at both ends of the main body. The first limiting part and the second limiting part are in movable contact with the inner wall of the housing. The first limiting part and the second limiting part are respectively provided with a first extension and a second extension that pass through the housing.

4. The quick-release energy storage device according to claim 3, characterized in that, The ends of the first extension and the second extension are provided with a first chamfer.

5. The quick-release energy storage device according to claim 2, characterized in that, The mounting plate is provided with at least two positioning rods, and the lock tongue is provided with a connecting hole opposite to the positioning rod, through which the positioning rod moves.

6. The quick-release energy storage device according to claim 3, characterized in that, The actuating mechanism includes a cam block and an actuating element. One end of the cam block is connected to the handle, and the other end of the cam block is connected to the actuating element. The actuating element is rotatably connected to the mounting plate.

7. The quick-release energy storage device according to claim 6, characterized in that, The actuating component includes an integrally formed crank and actuating block. The crank is connected to the cam block, and the main body is provided with a protrusion that movably abuts against the actuating block.

8. The quick-release energy storage device according to claim 7, characterized in that, The actuating block is elliptical in shape, and the two protrusions respectively move and abut against the two sides of the actuating block. The positions where the protrusions move and abut against the actuating block are provided with an arc-shaped second chamfer.

9. The quick-release energy storage device according to claim 7, characterized in that, The crank includes a vertical rod and a horizontal rod. The vertical rod has a slot. The cam block is connected to the slot, and the actuating block is connected to the horizontal rod.

10. The quick-release energy storage device according to claim 1, characterized in that, The housing includes a base and a top cover, the top cover is placed on the base, the handle is rotatably connected to the top cover, and the locking mechanism is connected to the base.

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