A locking device

Abstract

This disclosure relates to a locking device. The device includes a base, a locking mechanism, and a resistance mechanism. When locking, pulling the lever of the second elastic component causes the locking block to move horizontally along the guide groove away from the locking hook until the locking block disengages from the locking hook. The first spring, through its own elastic force, causes the adapter to move upward along its axial direction. When the adapter moves upward, the swing arm rotates clockwise around the connection between the support and the swing arm under the action of the first spring. The swing arm drives the connecting rod, which in turn drives the locking hook to move, causing the locking hook to rotate clockwise around its connection with the support. This allows the locking hook to perform a limiting and locking function, locking the object between the locking hook and the limiting body. When unlocking, pressing one end of the swing arm or one end of the connecting rod with external force causes the connecting rod to move counterclockwise around its connection with the lower end of the support, disengaging the locking hook and achieving unlocking.

Description

Technical Field

[0001] This disclosure relates to the field of mechanical equipment technology, and more particularly to a locking device. Background Technology

[0002] Currently, in the field of locking mechanism technology, locking devices must not only reliably lock products during transportation but also enable rapid and safe unlocking to prevent safety issues caused by products not being locked or not unlocked in time. Therefore, the adaptability and reliability requirements for locking devices and products are higher. At present, hydraulic cylinder-driven locking methods are generally used. However, this method occupies a large space and has the potential for oil leakage, resulting in low reliability. This locking mechanism is mainly used in the aerospace field for locking and securing objects with high reliability requirements and limited space, which has significant limitations. Summary of the Invention

[0003] To avoid the shortcomings of the prior art, the present invention provides a locking device to solve the problems that the locking mechanism in the prior art occupies a large space and is limited to locking and fixing objects with high reliability requirements and small spaces.

[0004] According to an embodiment of this disclosure, a locking device is provided, the device comprising:

[0005] A base, wherein a through hole is provided on the base and a limiting part is provided at the bottom of the base;

[0006] The locking mechanism includes a support, a swing arm, a first elastic component, a connecting rod, and a locking hook. The support is mounted on the base. The middle part of the swing arm is hinged to the support. The first elastic component is mounted on the support and is hinged to one end of the swing arm. The other end of the swing arm is hinged to one end of the connecting rod. The other end of the connecting rod is hinged to one end of the locking hook. The other end of the locking hook is hinged to the support. The locking hook has a locking part that can pass through the through hole. The locking part cooperates with the limiting part to lock the object.

[0007] The resistance mechanism includes a cover plate, a locking block, and a second elastic component. The cover plate is disposed on the base and has a guide groove. The locking block is movably disposed in the guide groove. The second elastic component is disposed at one end of the cover plate and connected to the locking block. The second elastic component enables the locking block to move along the guide groove and also enables the locking block to extend out of the other end of the cover plate.

[0008] In the locked state, the locking block abuts against the end of the locking hook to limit the locking hook; in the unlocked state, the locking block abuts against the connection between the locking hook and the locking part to limit the locking hook.

[0009] Furthermore, the first elastic component includes:

[0010] First spring and adapter;

[0011] One end of the first spring is disposed on the support, the adapter is hinged to one end of the swing arm, and the other end of the first spring is connected to the adapter.

[0012] Furthermore, the support is provided with a protrusion, and the first spring is sleeved on the protrusion.

[0013] Furthermore, a limiting block is provided at the bottom of the swing arm. In the locked state, the limiting block can abut against the locking hook to limit the locking hook.

[0014] Furthermore, the second resilient component includes:

[0015] Pull rod and second spring;

[0016] One end of the second spring is connected to the locking block, and the other end of the second spring is fixedly connected to the cover plate. The pull rod is connected to the locking block through a connector, and the second spring is sleeved on the pull rod.

[0017] Furthermore, the resistance mechanism also includes:

[0018] Roller;

[0019] The card block is provided with a mounting groove, and the roller is movably mounted in the mounting groove via a pin.

[0020] Furthermore, the support is mounted on the base via a first fastener.

[0021] Furthermore, the cover plate is mounted on the base by a second fastener.

[0022] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0023] In the embodiments of this disclosure, when locking the object using the aforementioned locking device, pulling the lever of the second elastic component causes the locking block to move horizontally along the guide groove away from the locking hook until the locking block disengages from the locking hook. The first spring, through its own elastic force, causes the adapter to move upwards along its axial direction. When the adapter moves upwards, the swing arm rotates clockwise around the connection between the support and the swing arm under the action of the first spring's elastic force. The swing arm drives the connecting rod, which in turn drives the locking hook to move, causing the locking hook to rotate clockwise around its connection with the support, thus enabling the locking hook to perform a limiting and locking function, locking the object between the locking hook and the limiting body. Releasing the lever of the second elastic component causes the locking block to press against the locking hook, further securing the locking hook. During unlocking, pressing one end of the swing arm or one end of the connecting rod with external force causes the connecting rod to rotate counterclockwise around its connection with the lower end of the support, disengaging the locking hook and achieving unlocking. At the same time, the resistance mechanism pushes the locking block out under the action of the second spring assembly, causing the locking block to lock the hook and prevent the hook from springing back, thus ensuring safety in the unlocked state. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0025] Figure 1 This diagram illustrates the structural state of a locking device in an exemplary embodiment of the present disclosure.

[0026] Figure 2 A schematic diagram showing the unlocked state of the locking device in an exemplary embodiment of this disclosure is shown.

[0027] Figure 3 This diagram illustrates the structure of the resistance mechanism in an exemplary embodiment of this disclosure.

[0028] Figure 4 This diagram illustrates the structure of the base in an exemplary embodiment of this disclosure.

[0029] Figure 5 This diagram illustrates the structure of the support in an exemplary embodiment of this disclosure.

[0030] Figure 6 A schematic diagram of the swing arm in an exemplary embodiment of this disclosure is shown.

[0031] In the diagram, 100 is the base; 110 is the limiting part; 120 is the locked object; 130 is the through hole; 200 is the locking mechanism; 210 is the support; 211 is the protrusion; 220 is the swing arm; 221 is the limiting block; 230 is the first elastic component; 231 is the first spring; 232 is the adapter; 240 is the connecting rod; 250 is the locking hook; 251 is the locking part; 300 is the resistance mechanism; 310 is the cover plate; 311 is the roller; 312 is the pin; 320 is the locking block; 330 is the second elastic component; 331 is the second spring; 332 is the pull rod; and 333 is the connecting part. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0033] Furthermore, the accompanying drawings are merely illustrative diagrams of embodiments of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0034] This example embodiment first provides a locking device. (See reference...) Figure 1 and Figure 2 As shown, the locking device may include:

[0035] Base 100, locking mechanism 200 and resistance mechanism 300. The base 100 has a through hole 130 and a limiting part 110 at its bottom. The locking mechanism 200 includes a support 210, a swing arm 220, a first elastic component 230, a connecting rod 240, and a locking hook 250. The support 210 is mounted on the base 100. The middle part of the swing arm 220 is hinged to the support 210. The first elastic component 230 is mounted on the support 210 and is hinged to one end of the swing arm 220. The other end of the swing arm 220 is hinged to one end of the connecting rod 240. The other end of the connecting rod 240 is hinged to one end of the locking hook 250. The other end of the locking hook 250 is hinged to the support 210. The locking hook 250 has a locking part 251 that can pass through the through hole 130. The locking part 251 is connected to the limiting part 110 at its bottom. The positioning part 110 cooperates to lock the object; the resistance mechanism 300 includes a cover plate 310, a locking block 320, and a second elastic component 330. The cover plate 310 is disposed on the base 100 and has a guide groove. The locking block 320 is movably disposed in the guide groove. The second elastic component 330 is disposed at one end of the cover plate 310 and connected to the locking block 320. The second elastic component 330 enables the locking block 320 to move along the guide groove and also enables the locking block 320 to extend out of the other end of the cover plate 310. In the locked state, the locking block 320 abuts against the end of the locking hook 250 to limit the locking hook 250. In the unlocked state, the locking block 320 abuts against the connection between the locking hook 250 and the locking part 251 to limit the locking hook 250.

[0036] Specifically, when the locking device is in the locked state, such as Figure 1 As shown, an external force rotates the swing arm 220 counterclockwise around the connecting shaft. The swing arm 220 drives the connecting rod 240, which in turn drives the locking hook 250 to rotate counterclockwise around the connecting shaft at the lower end of the support 210 via the connecting shaft. The locking hook 250 disengages, thus unlocking the device. Simultaneously, the resistance mechanism 300, under the action of spring force, pushes out the locking block 320 to lock the locking hook 250, thereby unlocking the device and placing it in the unlocked state. Figure 2 As shown.

[0037] When the locking device is in the unlocked state, such as Figure 2As shown, the pull rod 332 of the resistance mechanism 300 is pulled, and the pull rod 332 drives the locking block 320 to move horizontally. The first spring 231 causes the adapter 232 to move axially upward through its own spring force. When the adapter 232 moves upward, the swing arm 220 rotates clockwise around the connecting shaft between the support 210 and the swing arm 220 under the action of the spring force. The swing arm 220 drives the connecting rod 240, and the connecting rod 240 drives the locking hook 250 to move through the connecting shaft, so that the locking hook 250 rotates clockwise around the connecting shaft between itself and the lower end of the support 210, thereby enabling the locking hook 250 to perform the function of limiting and locking, so that the locked object 120 is locked between the locking part 251 of the locking hook 250 and the limiting body. Figure 1 As shown.

[0038] When locking the object 120 using the aforementioned locking device, the pull rod 332 of the second elastic component 330 is pulled. The pull rod 332 causes the locking block 320 to move horizontally along the guide groove away from the locking hook 250 until the locking block 320 disengages from the locking hook 250. The first spring 231 causes the adapter 232 to move upward along its axis through its own elastic force. When the adapter 232 moves upward, the swing arm 220 rotates clockwise around the connection between the support 210 and the swing arm 220 under the action of the elastic force of the first spring 231. The swing arm 220 drives the connecting rod 240, which in turn drives the locking hook 250 to move, causing the locking hook 250 to rotate clockwise around its connection with the support 210. This allows the locking hook 250 to perform the function of limiting and locking, thus locking the object 120 between the locking hook 250 and the limiting body. Release the lever 332 of the second elastic component 330, causing the locking block 320 to abut against the locking hook 250, further securing the locking hook 250. During unlocking, pressing one end of the swing arm 220 or one end of the connecting rod 240 with external force causes the connecting rod 240 to rotate counterclockwise around its connection with the lower end of the support 210 via its connection point with the locking hook 250, disengaging the locking hook 250 and unlocking the device. Simultaneously, the resistance mechanism 300, under the action of the second spring 331 component, pushes out the locking block 320, causing it to lock the locking hook 250, preventing it from springing back and ensuring safety in the unlocked state.

[0039] Below, we will refer to Figures 1 to 6 The various parts of the locking device described above in this example embodiment will be described in more detail.

[0040] In one embodiment, the first elastic component 230 includes a first spring 231 and an adapter 232; one end of the first spring 231 is disposed on the support 210, the adapter 232 is hinged to one end of the swing arm 220, and the other end of the first spring 231 is connected to the adapter 232.

[0041] Specifically, such as Figure 1As shown, the first elastic component 230 includes a first spring 231 and a connector 232. When the locking device is in the locked state, the first spring 231 can be in a compressed state. The first spring 231 pushes the connector 232 upward along its axial direction. The connector 232 is hinged to one end of the swing arm 220. Therefore, the connector 232 pushes one end of the swing arm 220 upward, and the other end of the swing arm 220 presses the connecting rod 240 downward. The connecting rod 240 then presses the locking hook 250 downward to prevent the hook lock from loosening.

[0042] When the locking device is in the unlocked state, the first spring 231 is in the compressed state. The compression spring causes the adapter 232 to move upward along the axis through its own spring force. When the adapter 232 moves upward, the swing arm 220 rotates clockwise around the connecting shaft between the support 210 and the swing arm 220 under the action of the spring force. The swing arm 220 drives the connecting rod 240, and the connecting rod 240 drives the locking hook 250 to move through the connecting shaft, so that the locking hook 250 rotates clockwise around the connecting shaft between it and the lower end of the support 210, thereby enabling the locking hook 250 to perform the function of limiting and locking.

[0043] In one embodiment, the second elastic component 330 includes: a pull rod 332 and a second spring 331; one end of the second spring 331 is connected to the locking block 320, and the other end of the second spring 331 is fixedly connected to the cover plate 310; the pull rod 332 is connected to the locking block 320 through a connector 333, and the second spring 331 is sleeved on the pull rod 332.

[0044] Specifically, such as Figure 3 As shown, pulling the lever 332 to the right will move the locking block 320 to the right and compress the second spring 331. The locking block 320 will release the locking hook 250, so that the locking hook 250 can perform the function of limiting and locking. After the lever 332 is released, the second spring 331 will rebound to resist the locking hook 250.

[0045] Understandably, when the locking device is in the locked state, the locking block 320 abuts against the end of the locking hook 250 to limit the locking hook 250; when the locking device is in the unlocked state, the locking block 320 abuts against the connection between the locking hook 250 and the locking part 251 to limit the locking hook 250.

[0046] In one embodiment, the resistance mechanism 300 further includes a roller 311; the locking block 320 is provided with a mounting groove, and the roller 311 is movably disposed in the mounting groove via a pin 312.

[0047] Specifically, such as Figure 3 The locking block 320 is in direct contact with the base 100, resulting in high friction and affecting equipment performance. Installing rollers 311 on the locking block 320 can reduce friction, allowing the locking function to be achieved with less force applied to the pull rod 332.

[0048] In one embodiment, such as Figure 4 As shown, the base 100 has a through hole 130, and the locking part 251 can pass through the through hole 130.

[0049] It is understood that when the locking device is in the locked state, the locking part 251 passes through the through hole 130 and cooperates with the limiting part 110 to lock the object; when the locking device is in the locked state, the locking part 251 does not pass through or does not completely pass through the through hole 130, so that the object can be released.

[0050] In one embodiment, the support 210 is provided with a protrusion 211, and the first spring 231 is sleeved on the protrusion 211. Specifically, as shown... Figure 5 As shown, the first spring 231 is sleeved on the protrusion 211, which can fix the first spring 231 and prevent the first spring 231 from deforming.

[0051] In one embodiment, the bottom of the swing arm 220 is also provided with a limiting block 221. In the locked state, the limiting block 221 can abut against the locking hook 250 to limit the locking hook 250.

[0052] Specifically, such as Figure 6 As shown, when the locking device is in the locked state, the swing arm 220 on the left side of the support 210 moves downward to drive the limiting block 221 to move downward, so that the limiting block 221 abuts against the locking hook 250 to limit the locking hook 250.

[0053] In one embodiment, the support 210 is mounted on the base 100 by a first fastener. Specifically, the first fastener is a screw or bolt, which secures the support 210 to the base 100.

[0054] In one embodiment, the cover plate 310 is mounted on the base 100 by a second fastener. Specifically, the second fastener is a screw or bolt, which secures the cover plate 310 to the base 100.

[0055] When locking the object 120 using the aforementioned locking device, the pull rod 332 of the second elastic component 330 is pulled. The pull rod 332 causes the locking block 320 to move horizontally along the guide groove away from the locking hook 250 until the locking block 320 disengages from the locking hook 250. The first spring 231 causes the adapter 232 to move upward along its axis through its own elastic force. When the adapter 232 moves upward, the swing arm 220 rotates clockwise around the connection between the support 210 and the swing arm 220 under the action of the elastic force of the first spring 231. The swing arm 220 drives the connecting rod 240, which in turn drives the locking hook 250 to move, causing the locking hook 250 to rotate clockwise around its connection with the support 210. This allows the locking hook 250 to perform the function of limiting and locking, thus locking the object 120 between the locking hook 250 and the limiting body. Release the lever 332 of the second elastic component 330, causing the locking block 320 to abut against the locking hook 250, further securing the locking hook 250. After locking, the locking block 320 abuts against the end of the locking hook 250 to limit its position. During unlocking, pressing one end of the swing arm 220 or one end of the connecting rod 240 with external force causes the connecting rod 240 to rotate counterclockwise around its connection with the lower end of the support 210, disengaging the locking hook 250 and unlocking it. Simultaneously, the resistance mechanism 300, under the action of the second spring 331 component, pushes out the locking block 320, causing it to lock the locking hook 250, preventing it from rebounding and ensuring safety in the unlocked state. After unlocking, the locking block 320 abuts against the connection between the locking hook 250 and the locking part 251 to limit the locking hook 250.

[0056] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., in the above description 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 the embodiments of this disclosure and simplifying the description, and are not intended to 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 the embodiments of this disclosure.

[0057] 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 embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In the embodiments of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "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 disclosure according to the specific circumstances.

[0059] In embodiments of this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0061] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A locking device, characterized in that, The device includes: A base, wherein a through hole is provided on the base and a limiting part is provided at the bottom of the base; The locking mechanism includes a support, a swing arm, a first elastic component, a connecting rod, and a locking hook. The support is mounted on the base. The middle part of the swing arm is hinged to the support. The first elastic component is mounted on the support and is hinged to one end of the swing arm. The other end of the swing arm is hinged to one end of the connecting rod. The other end of the connecting rod is hinged to one end of the locking hook. The other end of the locking hook is hinged to the support. The locking hook has a locking part that can pass through the through hole. The locking part cooperates with the limiting part to lock the object. The resistance mechanism includes a cover plate, a locking block, and a second elastic component. The cover plate is disposed on the base and has a guide groove. The locking block is movably disposed in the guide groove. The second elastic component is disposed at one end of the cover plate and connected to the locking block. The second elastic component enables the locking block to move along the guide groove and also enables the locking block to extend out of the other end of the cover plate. In the locked state, the locking block abuts against the end of the locking hook to limit the locking hook; in the unlocked state, the locking block abuts against the connection between the locking hook and the locking part to limit the locking hook.

2. The locking device according to claim 1, characterized in that, The first elastic component includes: First spring and adapter; One end of the first spring is disposed on the support, the adapter is hinged to one end of the swing arm, and the other end of the first spring is connected to the adapter.

3. The locking device according to claim 2, characterized in that, The support is provided with a protrusion, and the first spring is sleeved on the protrusion.

4. The locking device according to claim 1, characterized in that, The bottom of the swing arm is also provided with a limiting block. In the locked state, the limiting block can abut against the locking hook to limit the locking hook.

5. The locking device according to claim 1, characterized in that, The second elastic component includes: Pull rod and second spring; One end of the second spring is connected to the locking block, and the other end of the second spring is fixedly connected to the cover plate. The pull rod is connected to the locking block through a connector, and the second spring is sleeved on the pull rod.

6. The locking device according to claim 1, characterized in that, The resistance mechanism also includes: Roller; The card block is provided with a mounting groove, and the roller is movably mounted in the mounting groove via a pin.

7. The locking device according to claim 1, characterized in that, The support is mounted on the base via a first fastener.

8. The locking device according to claim 1, characterized in that, The cover plate is mounted on the base by a second fastener.

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