Lock catch device

Abstract

The utility model relates to the field of lock catches, in particular to a lock catch device, which is characterized in that a control handle is rotatably connected with a shell through a shaft body, a first torsion spring is sleeved on the shaft body, one end of the first torsion spring is propped against the back surface of the control handle, the other end of the first torsion spring is propped against a lock tongue, and the lock tongue is locked under the action of the first torsion spring. An obtuse triangle indicator is formed among the control handle, the hinge piece and the spring bolt. According to the lock, the control handle and the shell are only rotationally connected, the hinge piece is rotationally connected with the control handle and the tongue piece, under the condition that the first torsional spring is sleeved, the control handle and the hinge piece in an unlocking state form an obtuse triangle on the tongue piece, and the obtuse triangle has the indicating function of the lock; whether the control rod completely returns to the closed state or not can be clearly displayed, the indicator is small in occupied space, the overall compactness of the lock can be kept, and installation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lock catch, especially a lock catch device. BACKGROUND

[0002] Locks used in limited spaces need to meet several key requirements. First, the volume of the lock must be small, while at the same time providing sufficient unlocking travel within a limited rotation range, thus facilitating use in environments where space is limited.

[0003] Even if the size of the lock is reduced, even to a size smaller than a finger, it is still necessary to ensure that the user can easily operate the control lever of the lock.

[0004] In addition, the control lever of the lock also needs to have a reliable mechanism to ensure that it can be securely maintained in the closed state, avoiding accidental ejection of the control lever.

[0005] In addition, during operation, the user may encounter a situation where the control lever is not fully closed, especially when closing, the control lever does not reach the fully seated position. However, due to the lack of clear feedback, the user often does not realize this problem, which can lead to the lock being accidentally opened without being fully closed. DISCLOSURE OF INVENTION

[0006] To solve the above problems, the utility model provides a lock catch device, which has a corresponding prompt effect, and the structure can be applied in a small environment.

[0007] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0008] A lock catch device, characterized in that it comprises a shell, a lock tongue, a control lever, a hinged piece and a locking mechanism arranged in the shell. The lock tongue is slidingly connected with the shell. One end of the lock tongue is a tongue piece. An opening is provided on the shell for the tongue piece to pass through. One end of the control lever is rotatably connected with the shell. One end of the hinged piece is hingedly connected with the lock tongue. The other end of the hinged piece is rotatably connected with the control lever. The locking mechanism is clamped and fixed with the control lever embedded in the shell. The control lever and the shell are rotatably connected through a shaft body. A first torsional spring is sleeved on the shaft body. One end of the first torsional spring abuts against the back surface of the control lever. The other end of the first torsional spring abuts against the lock tongue. Under the action of the first torsional spring, the control lever, the hinged piece and the lock tongue form an obtuse angle triangle indicator.

[0009] The utility model has the advantages of:

[0010] In the utility model, the control handle and the shell are only connected in a rotating mode, the hinge piece is rotatably connected with the control handle and the tongue piece, in the case of the first torsional spring, the control handle and the hinge piece form an obtuse triangle on the tongue piece in the unlocked state, the shape is the indicating function of the lock, and whether the control lever has returned to the closed state can be clearly displayed.

[0011] Specifically, the hinge seat is formed on the lock tongue, and the connecting part matched with the hinge seat is arranged at the end of the hinge piece, and the shaft body passes through the connecting part and the hinge seat; the hinge seat and the connecting part are arranged to be matched with each other, so that the connection effect between them is improved, and better stability in use is ensured.

[0012] In addition, the hinge seat is located in the middle region of the lock tongue, so that in the locked state, the control handle is completely embedded in the shell.

[0013] It should be noted that in the locked state, the control handle is embedded in the shell, and the first torsional spring is also compressed, and in the unlocked state, the first torsional spring automatically opens the control handle, forcing the lock tongue to reset, so that the control handle can be rotated out of the shell, which is beneficial to the use of the control handle.

[0014] The above-mentioned locking mechanism comprises a button, a second torsional spring and a clamping piece extending outwardly formed on the head of the control handle, one end of the second torsional spring is connected with the hinge seat, and the other end is located below the button, the button is rotatably connected with the shell, under the action of the second torsional spring, the button is always pushed, and a parallel relationship is maintained between the button and the shell, a clamping hole for clamping the clamping piece is arranged on the surface opposite to the control handle, the clamping piece has a length for contacting the button, and when the clamping piece touches the upper surface of the clamping hole, a force is applied to the button, in the embodiment, the direction of the force is to the right, therefore, the button rotates clockwise under the external force, and the clamping hole can correspond to the clamping piece smoothly, and clamping between the two is realized.

[0015] In summary, the locking mode has a simple structure, and can directly act on other components, such as the button and the control handle, thereby greatly optimizing the design of the utility model and reducing the number of parts used.

[0016] Specifically, the control handle also has a rotary switch, the rotary switch has a lock piece located in the shell, the lock piece is elliptical, the hinge piece is provided with a lock hole matched with the lock piece, and the lock piece is abutted between the lock piece and the lock catch after passing through the lock hole by twisting the rotary switch, so that the control handle and the hinge piece are locked together, and the lock catch device cannot be opened. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the utility model.

[0018] Figure 2 is Figure 1 an explosion schematic view.

[0019] Figure 3 is a use state view of the utility model.

[0020] Figure 4 is a perspective view of the shell. DETAILED DESCRIPTION

[0021] As Figures 1-4 shown, a lock device is characterized in that it comprises a shell 1, a lock tongue 2, a control handle 3, a hinged piece 4 and a locking mechanism arranged in the shell 1, the lock tongue 2 is in sliding connection with the shell 1, one end of the lock tongue 2 is a tongue piece 2a, an opening 1a for the tongue piece 2a to pass out is arranged on the shell 1, one end of the control handle 3 is in rotary connection with the shell 1, one end of the hinged piece 4 is in hinged connection with the lock tongue 2, the other end of the hinged piece 4 is in rotary connection with the control handle 3, the locking mechanism is in clamping and fixing with the control handle 3 embedded in the shell 1, wherein the control handle 3 and the shell 1 are in rotary connection through a shaft body, a first torsional spring (not shown in the figure) is sleeved on the shaft body, one end of the first torsional spring is in abutment with the back surface of the control handle 3, the other end of the first torsional spring is in abutment with the lock tongue 2, under the action of the first torsional spring, the control handle 3, the hinged piece 4 and the lock tongue 2 form an obtuse angle triangle indicator.

[0022] The utility model has the advantages of:

[0023] In the utility model, the control handle 3 and the shell 1 are only in rotary connection, and the hinged piece 4 is in rotary connection with the control handle 3 and the tongue piece 2a, under the condition of sleeving the first torsional spring, the control handle 3 and the hinged piece 4 in the unlocking state form an obtuse angle triangle on the tongue piece 2a, the shape is the indicating function of the lock, and whether the control rod has returned to the closed state can be clearly displayed, the indicator design occupies less space, the compactness of the lock as a whole can be maintained, and installation is facilitated.

[0024] Specifically, the hinged seat 21 is formed on the lock tongue 2, and the connecting part 41 matched with the hinged seat 21 is arranged at the end of the hinged piece 4, and the shaft body 5 passes through the connecting part 41 and the hinged seat 21 at the same time; the hinged seat 21 and the connecting part 41 are arranged to be matched with each other, so that the connection effect between them is improved, and better stability in use is ensured.

[0025] In addition, the hinged seat 21 is located in the middle region of the lock tongue 2, so that the control handle 3 is completely embedded in the shell 1 in the locked state.

[0026] Need to explain, in the locked state, the control handle 3 is embedded in the shell 1, and the first torsional spring is also compressed, in the unlocking, the first torsional spring will automatically open the control handle 3, force the lock tongue 2 reset, in this way, the control handle 3 can be rotated out of the shell 1, facilitate the use of the control handle 3.

[0027] The above-mentioned locking mechanism comprises a button 6, a second torsional spring and a clamping piece 31 formed on the head of the control handle 3 and extending outward, one end of the second torsional spring is connected with the hinge seat 21, and the other end is located below the button 6, the button 6 is rotatably connected with the shell 1, under the action of the second torsional spring, the button 6 is always pressed, and a parallel relationship is maintained between the button 6 and the shell 1, a clamping hole 61 for clamping the clamping piece 31 is arranged on the surface opposite to the control handle 3, the clamping piece 31 has a length for contacting the button 6, and the clamping piece 31 applies a force to the button 6 when contacting the upper surface of the clamping hole 61, in the embodiment, the force is directed to the right, therefore, the button 6 rotates clockwise under the external force, and therefore, the clamping hole 61 can correspond to the clamping piece 31, and clamping is realized between the clamping hole 61 and the clamping piece 31.

[0028] In summary, the locking mode has simple structure, and can directly act on other components, for example, the button 6 and the control handle 3, so that the design of the utility model is greatly optimized, and the number of parts used is reduced.

[0029] Specifically, the control handle 3 further has a rotary switch 7, the rotary switch 7 has a locking piece 71 located in the shell 1, the locking piece 71 is elliptical, the hinge piece 4 is provided with a locking hole 42 matched with the locking piece 71, after the locking piece 71 passes through the locking hole 42, the rotary switch 7 is twisted to make the locking piece 71 abut against the lock catch, so that the control handle 3 and the hinge piece 4 are locked together, and it is ensured that the lock catch device cannot be opened.

[0030] The above-mentioned embodiments only describe the preferred embodiments of the utility model, and do not limit the scope of the utility model, and various deformations and improvements of the technical scheme of the utility model made by ordinary engineering technical personnel without departing from the design spirit of the utility model should fall within the protection scope determined by the claims of the utility model.

Claims

1. A catch device, characterized in that The utility model relates to a lock, comprising a shell and a lock tongue, a control handle, a hinged piece and a locking mechanism arranged in the shell, the lock tongue is in sliding connection with the shell, one end of the lock tongue is a tongue piece, the shell is provided with an opening for the tongue piece to pass through, one end of the control handle is in rotational connection with the shell, one end of the hinged piece is in hinged connection with the lock tongue, the other end of the hinged piece is in rotational connection with the control handle, the locking mechanism is in clamping and fixing connection with the control handle embedded in the shell, wherein the control handle and the shell are in rotational connection through a shaft body, the shaft body is sleeved with a first torsion spring, one end of the first torsion spring is in abutment with the back of the control handle, the other end of the first torsion spring is in abutment with the lock tongue, under the action of the first torsion spring, the control handle, the hinged piece and the lock tongue form an obtuse angle triangle indicating object.

2. A catch device according to claim 1, characterised in that The lock tongue is provided with a hinged seat, and the hinged piece is provided with a connecting part matched with the hinged seat at the end, and the shaft body passes through the connecting part and the hinged seat.

3. A catch device according to claim 2, characterised in that The hinged seat is located in the middle region of the lock tongue.

4. A catch device according to claim 1, characterised in that The locking mechanism comprises a button, a second torsion spring and a clamping piece outwardly extending on the head of the control handle, one end of the second torsion spring is connected with the hinged seat, and the other end is located below the button, the button is in rotational connection with the shell, the button is provided with a clamping hole matched with the clamping piece on the opposite surface of the control handle, and the clamping piece has a length in contact with the button.

5. A catch device according to claim 1, characterised in that The control handle is further provided with a rotary switch, the rotary switch has a lock piece in the shell, the lock piece is elliptical, the hinged piece is provided with a lock hole matched with the lock piece, and the lock piece is in abutment with the lock piece after passing through the lock hole.

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