Locking device

Abstract

The utility model discloses a locking device which comprises a connecting frame, a lock hook, a fixing hook and a rotating shaft, the fixing hook is fixedly installed on the connecting frame, the lock hook is matched with the connecting frame in a rotating mode through the rotating shaft, a lock groove with an opening is formed in the fixing hook, and the rotating shaft is arranged in the lock groove. The locking device has the advantages that a locking rod on a device needing to be locked is moved into the guide groove, the locking rod moves towards the side close to the locking groove, the locking rod can move towards the side close to the locking groove, the locking groove can be switched between the opening state and the closing state through rotation of the locking hook, and a spring is arranged between the fixing hook and the locking hook. When the locking rod moves, the locking hook is pushed to rotate around the axis of the rotating shaft, so that the locking groove is switched from the closed state to the open state, the locking rod can enter the locking groove, when the locking rod completely enters the locking groove, the spring pushes the locking hook to reset, the structure is simple, and installation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to locking device technical field, especially relates to a locking device. BACKGROUND

[0002] The locking device is a device for locking external parts, such as when installing a storage rack on a transport device, the locking device is needed to lock the storage rack.

[0003] Through retrieval, a kind of automatic lock mechanism provided by China invention patent (application publication number: CN116439934A) is provided with A shaft and B shaft, limiting spanner can rotate along A shaft, lock bolt is cooperated with limiting spanner and can rotate along B shaft, lock catch is matched with lock bolt and cooperated with use, and one end is connected with limiting spanner, the other end is connected with lock bolt of tension spring;

[0004] The automatic locking mechanism reaches any one state of unlocking state or self-locking state by rotating limiting spanner;

[0005] In unlocking state, the tension line of tension spring is above the axis of A shaft, i.e. limiting spanner is given a tension force rotating in clockwise direction by tension spring;

[0006] In self-locking state, the tension line of tension spring is below the axis of A shaft, i.e. limiting spanner is given a tension force rotating in counterclockwise direction by tension spring.

[0007] The above prior art makes that automatic locking mechanism can quickly complete unlocking, and automatically restores self-locking state after function operation is completed, so as to reduce the number of manual operation.

[0008] And the above prior art has the disadvantages of complex structure and difficult tension spring installation, so the defect needs to be improved. UTILITY MODEL CONTENTS

[0009] The utility model aims at the above problems, and provides a locking device, which has the advantages that accidental unlocking does not occur.

[0010] To achieve the above object, the utility model provides the following technical scheme: a locking device, comprising a connecting frame, a lock hook and a fixed hook, the fixed hook is fixedly installed on the connecting frame, the lock hook is rotatably connected to the connecting frame, the fixed hook is provided with a lock slot with an opening, the lock slot is switched between the opening and the closed state by rotating the lock hook, a spring is arranged between the lock hook and the connecting frame or the fixed hook, and the spring acts on the lock hook to make the lock slot always have a tendency to form a closed state.

[0011] Preferably, the fixed hook is provided with a first guide surface, the lock hook is provided with a first end and a second end located on two sides of the rotation shaft, the first end of the lock hook is provided with a second guide surface, and the first guide surface and the second guide surface form a guide groove when the lock slot is in the closed state.

[0012] Preferably, the fixed hook is provided with an arc-shaped surface extending along the rotation track of the lock hook, and the lock hook is provided with an arc-shaped groove, and the arc-shaped surface and the arc-shaped groove are always arranged in close contact.

[0013] Preferably, the connecting frame is provided with a mounting groove, and the fixed hook and the lock hook are arranged in the mounting groove, and at least one side surface of the lock hook is in gap fit with the inner side wall of the mounting groove.

[0014] Preferably, the second end of the lock hook is provided with a protruding pressing part.

[0015] Preferably, the second end of the lock hook is provided with a mounting hole for mounting a traction member.

[0016] Preferably, the second end of the lock hook is provided with a pressing groove, and the pressing groove is provided with a plurality of convex strips.

[0017] Preferably, the fixed hook is provided with a first connecting groove, the lock hook is provided with a second connecting groove, and the spring is arranged in the first connecting groove and the second connecting groove.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The utility model discloses a locking device, the locking rod on the equipment that needs to be locked is moved to the guide groove, the locking rod is moved to the side close to the lock slot, and then the locking rod is in contact with the first inclined surface and the second inclined surface, the locking rod is pushed to rotate around the rotation shaft axis, the lock slot is switched from the closed state to the open state, and then the locking rod can enter the lock slot, when the locking rod completely enters the lock slot, the spring pushes the lock hook to reset, the lock slot is switched from the open state to the closed state, the locking function is realized, and the spring is more simple to install. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is the part three-dimensional structure schematic diagram of the utility model;

[0022] Figure 3 It is the overhead structure schematic diagram of the utility model;

[0023] Figure 4A three-dimensional structure schematic view of the fixed hook of the utility model shows.

[0024] Figure 5 A three-dimensional structure schematic view of the lock hook of the utility model shows.

[0025] BRIEF DESCRIPTION OF DRAWINGS:100, locking rod;1, connecting frame;10, mounting groove;110, connecting plate;11, first connecting piece;12, second connecting piece;2, fixed hook;200, arc surface;20, lock slot;21, first guide surface;22, first connecting groove;3, lock hook;30, pressing groove;300, arc-shaped groove;31, second guide surface;32, pressing part;33, mounting hole;34, convex strip;35, second connecting groove;4, rotating shaft;5, pad;6, spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] As Figures 1-5 shown, a locking device comprises a connecting frame 1, a lock hook 3, a fixed hook 2 and a rotating shaft 4, the fixed hook 2 is fixedly installed on the connecting frame 1, the lock hook 3 is rotationally matched with the connecting frame 1 through the rotating shaft 4, the fixed hook 2 is provided with a lock slot 20 with an opening, the lock slot 20 is switched between opening and closing states through the rotation of the lock hook 3, a spring 6 is arranged between the fixed hook 2 or the connecting frame 1 and the lock hook 3, the spring 6 acts on the lock hook 3, so that the lock slot 20 always has a tendency to form a closed state.

[0028] The fixed hook 2 is provided with a first guide surface 21, the lock hook 3 has a first end and a second end located on both sides of the rotating shaft 4, the first end of the lock hook 3 is provided with a second guide surface 31, when the lock slot 20 is in a closed state, the first guide surface 21 and the second guide surface 31 form a guide groove, in the embodiment, the guide groove is "V" shaped.

[0029] The fixed hook 2 is provided with an arc-shaped surface 200 extending along the rotation trajectory of the locking hook 3, and the locking hook 3 is provided with an arc-shaped groove 300. The arc-shaped surface 200 and the arc-shaped groove 300 are fitted together. When the locking hook 3 rotates around the axis of the rotating shaft 4, the surfaces of the arc-shaped surface 200 and the arc-shaped groove 300 always remain in contact. Therefore, the arc-shaped surface 200 and the arc-shaped groove 300 cooperate to guide the locking hook 3 when it rotates.

[0030] The connecting frame 1 has a mounting groove 10. The fixing hook 2 and the locking hook 3 are both disposed in the mounting groove 10. At least one side surface of the locking hook 3 is in clearance fit with the inner side wall of the mounting groove 10. The fixing hook 2 is provided with a pad 5. The sum of the thickness of the pad 5 and the fixing hook 2 is greater than the thickness of the locking hook 3, so that there is a gap between the locking hook 3 and the side wall of the mounting groove 10, thereby making the locking hook 3 rotate more smoothly.

[0031] The second end of the locking hook 3 is provided with a protruding pressing part 32. By manually pressing the pressing part 32, the locking hook 3 is driven to swing, thereby switching the locking groove 20 from the closed state to the open state, i.e., the unlocking function. The second end of the locking hook 3 is provided with a pressing groove 30, and the pressing groove 30 is provided with several protrusions 34. The protrusions 34 increase the friction and prevent the fingers from slipping on the locking hook 3 when manually pressing.

[0032] The second end of the locking hook 3 is provided with a mounting hole 33 for installing a traction component. In this application, the traction component is a pull rope. By connecting a pull rope inside and outside the mounting hole 33, the unlocking function can be achieved by pulling the pull rope.

[0033] The fixing hook 2 is provided with a first connecting groove 22, the locking hook 3 is provided with a second connecting groove 35, and the spring 6 is installed in the first connecting groove 22 and the second connecting groove 35.

[0034] The connecting frame 1 includes two connecting plates 110, a plurality of first connecting members 11 and a plurality of second connecting members 12. The first connecting members 11 are used to install the connecting plates 110 onto other equipment that needs to install locking devices. The second connecting members 12 are used to fix the fixing hook 2 onto the connecting plates 110. The mounting groove 10 is formed between the two connecting plates 110. It should be noted that the first connecting members 11 and the second connecting members 12 are both bolts and nuts.

[0035] When locking is required: the locking lever 100 on the device to be locked is moved into the guide groove. By moving the locking lever 100 closer to the lock groove 20, the locking lever 100 contacts the first inclined surface and the second inclined surface. As the locking lever 100 continues to move, it pushes the locking hook 3 to rotate around the axis of the rotating shaft 4, thereby switching the lock groove 20 from the closed state to the open state, allowing the locking lever 100 to enter the lock groove 20. When the locking lever 100 is fully inside the lock groove 20, the spring 6 pushes the locking hook 3 to reset, thereby switching the lock groove 20 from the open state to the closed state, thus achieving the locking function.

[0036] When unlocking is required: by manually pressing the pressing part 32, the locking hook 3 is driven to rotate around the axis of the rotating shaft 4, thereby switching the locking groove 20 from the closed state to the open state, so that the locking rod 100 can be removed from the locking groove 20, thereby realizing the unlocking function. When the hand is released, the locking hook 3 is reset by the action of the spring 6, so that the locking groove 20 switches from the open state to the closed state.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A locking device, characterized in that: The device includes a connecting frame (1), a locking hook (3), and a fixing hook (2). The fixing hook (2) is fixedly installed on the connecting frame (1). The locking hook (3) is rotatably fitted on the connecting frame (1). The fixing hook (2) is provided with a locking groove (20) with an opening. The locking groove (20) can switch between open and closed states by the rotation of the locking hook (3). A spring (6) is provided between the locking hook (3) and the connecting frame (1) or the fixing hook (2). The spring (6) acts on the locking hook (3) so that the locking groove (20) always tends to form a closed state.

2. The locking device according to claim 1, characterized in that: The locking hook (3) is rotatably mounted on the connecting frame (1) via the rotating shaft (4). The fixed hook (2) is provided with a first guide surface (21). The locking hook (3) has a first end and a second end located on both sides of the rotating shaft (4). The first end of the locking hook (3) is provided with a second guide surface (31). When the locking groove (20) is in the closed state, the first guide surface (21) and the second guide surface (31) form a guide groove.

3. A locking device according to claim 2, characterized in that: The fixed hook (2) is provided with an arc-shaped surface (200) extending along the rotation trajectory of the locking hook (3), and the locking hook (3) is provided with an arc-shaped groove (300). The arc-shaped surface (200) and the arc-shaped groove (300) are always fitted together.

4. A locking device according to claim 1, characterized in that: The connecting frame (1) has a mounting groove (10), and the fixing hook (2) and the locking hook (3) are both disposed in the mounting groove (10). At least one side surface of the locking hook (3) is in clearance fit with the inner side wall of the mounting groove (10).

5. A locking device according to claim 2, characterized in that: The second end of the locking hook (3) is provided with a protruding pressing part (32).

6. A locking device according to claim 2, characterized in that: The second end of the locking hook (3) is provided with a mounting hole (33) for installing a traction component.

7. A locking device according to claim 2, characterized in that: The second end of the locking hook (3) is provided with a pressing groove (30), and the pressing groove (30) is provided with a plurality of protrusions (34).

8. A locking device according to claim 1, characterized in that: The fixing hook (2) is provided with a first connecting groove (22), the locking hook (3) is provided with a second connecting groove (35), and the spring (6) is installed in the first connecting groove (22) and the second connecting groove (35).

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