Locking and unlocking mechanism and mechanical device having the same
The locking and unlocking mechanism, consisting of a base, locking shaft, and rotating parts, solves the problem of easy loss of screws and nuts, and achieves reliable locking and unlocking of mechanical devices. It has a simple structure and is easy to use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI JIANGSHAN HEAVY IND
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-26
AI Technical Summary
In existing mechanical devices, the locking and unlocking methods using screws and nuts are prone to loss and inconvenient to use.
The locking and unlocking mechanism consists of a base, a locking shaft, and a rotating component. By rotating the rotating component in the forward or reverse direction, the locking shaft is moved axially along the mounting hole to lock or unlock the components between the locking hook and the base.
It achieves reliable locking and unlocking of components, avoids the loss of screws and nuts, and has a simple structure and is easy to use.
Smart Images
Figure CN224414040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical structure technology, and in particular to a locking and unlocking mechanism and a mechanical device having the locking and unlocking mechanism. Background Technology
[0002] Mechanical devices are composed of multiple mechanical parts connected in a specific way. They are capable of transmitting force and motion, converting energy, or performing specific functions, and are widely used in industries such as industry, transportation, medicine, and agriculture. Mechanical devices can help people reduce the difficulty of work or save labor. Some mechanical devices require two components arranged vertically to be locked and unlocked from the side.
[0003] In the existing technology, the conventional locking and unlocking method is to use screws and nuts, but screws and nuts are easy to lose during use and are inconvenient to use. Utility Model Content
[0004] This utility model provides a locking and unlocking mechanism and a mechanical device having the locking and unlocking mechanism to solve the technical problem in the prior art where two components arranged vertically are locked and unlocked from the side by screws and nuts, which are easy to lose and inconvenient to use.
[0005] Firstly, a locking and unlocking mechanism is provided, including:
[0006] A base is disposed on the first component, and the base is provided with mounting holes;
[0007] A locking shaft is provided in the mounting hole and can move axially along the mounting hole. The lower end of the locking shaft is provided with a locking hook spaced apart from the base.
[0008] A rotating component, which is provided on the base corresponding to the mounting hole and is rotatably connected to the upper end of the locking shaft via a thread;
[0009] The second component is positioned between the locking hook and the base. Rotating the rotating component in either the forward or reverse direction causes the locking shaft to move axially along the mounting hole, thereby driving the locking hook to lock the second component and the first component or unlock the second component and the first component.
[0010] In some embodiments, the rotating component includes a rotating shaft disposed on the base, the rotating shaft having an internal thread, and the upper end of the locking shaft having an external thread that mates with the internal thread.
[0011] In some embodiments, the upper end of the locking shaft is provided with a first limiting pin that restricts the upward movement of the rotating shaft along the locking shaft.
[0012] In some embodiments, the rotating element further includes a handle, one end of which is connected to the rotating shaft.
[0013] In some embodiments, one end of the handle is provided with an internal spline, and the rotating shaft is provided with an external spline that mates with the internal spline.
[0014] In some embodiments, the handle has a weight-reducing hole.
[0015] In some embodiments, the locking and unlocking mechanism further includes:
[0016] A spring is disposed in the mounting hole and sleeved on the locking shaft, one end of the spring abuts against the shoulder of the mounting hole, and the other end of the spring abuts against the shoulder of the locking shaft.
[0017] In some embodiments, a strip groove is provided on the outer side of the locking shaft, and a second limiting pin is provided on the base to cooperate with the strip groove.
[0018] In some embodiments, the locking hook has stripes on the side facing the base.
[0019] Secondly, a mechanical device is provided, including the aforementioned locking and unlocking mechanism.
[0020] The beneficial effects of the technical solution provided by this utility model include:
[0021] This utility model provides a locking and unlocking mechanism and a mechanical device having the locking and unlocking mechanism. The locking and unlocking mechanism includes a base, a locking shaft, and a rotating component. The base is disposed on a first component, and the locking shaft is disposed in a mounting hole in the base. The lower end of the locking shaft is provided with a locking hook spaced apart from the base. The rotating component is threadedly rotatably connected to the upper end of the locking shaft. Rotating the rotating component in the forward or reverse direction causes the locking shaft to move axially along the mounting hole, which can drive the locking hook to lock or unlock the second component and the first component disposed between the locking hook and the base. The entire mechanism is connected to the first component, preventing loss. It has a simple structure and is easy to use. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A top view of a locking and unlocking mechanism provided in an embodiment of this utility model;
[0024] Figure 2 Provided for the embodiments of this utility model Figure 1 A schematic diagram of section AA;
[0025] Figure label:
[0026] 1. Base; 11. Mounting holes; 111. Hole shoulder;
[0027] 2. Locking shaft; 21. Locking hook; 211. Stripe; 22. Groove; 23. Shaft shoulder;
[0028] 3. Rotating component; 31. Shaft; 32. Handle; 321. Weight reduction hole;
[0029] 4. First component;
[0030] 5. Second component;
[0031] 6. First limiting pin;
[0032] 7. Spring;
[0033] 8. Second limit pin. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0035] This utility model provides a locking and unlocking mechanism that solves the technical problem of existing mechanical devices where two components arranged vertically are locked and unlocked from the side using screws and nuts, which are easy to lose and inconvenient to use.
[0036] See Figure 1 As shown, this utility model embodiment provides a locking and unlocking mechanism, including: a base 1, a locking shaft 2, and a rotating component 3.
[0037] The base 1 is mounted on the first component 4, and the base 1 has a mounting hole 11. The locking shaft 2 is located in the mounting hole 11 and can move axially along the mounting hole 11. The lower end of the locking shaft 2 has a locking hook 21 spaced apart from the base 1. The rotating component 3 is located on the base 1 corresponding to the mounting hole 11 and is threadedly rotatably connected to the upper end of the locking shaft 2.
[0038] The second component 5 is placed between the locking hook 21 and the base 1. The rotating component 3 is rotated in the forward or reverse direction, and the locking shaft 2 moves axially along the mounting hole 11, causing the locking hook 21 to lock the second component 5 and the first component 4 or unlock the second component 5 and the first component 4.
[0039] Specifically, see Figure 1 and Figure 2 As shown, assuming the second component 5 and the first component 4 are in the unlocked state at the initial position, the rotating component 3 is rotated approximately 180 degrees in the forward direction (reaching...). Figure 2 (As shown in the diagram), the locking shaft 2 moves axially along the mounting hole 11, causing the locking hook 21 to move upward, thereby locking the second component 5 and the first component 4. Then, by rotating the rotating component 3 in the opposite direction by approximately 180 degrees, the locking shaft 2 moves axially along the mounting hole 11, causing the locking hook 21 to move downward, thereby unlocking the second component 5 and the first component 4. Figure 1 and Figure 2 In the diagram, the double-headed arc indicates the rotation direction of the rotating component 3. Figure 2 The double-headed arrow in the center line indicates the up-down movement direction of the locking shaft 2.
[0040] The locking and unlocking mechanism in this embodiment of the utility model includes a base, a locking shaft, and a rotating component. The base is mounted on a first component, and the locking shaft is located in a mounting hole in the base. The lower end of the locking shaft has a locking hook spaced apart from the base. The rotating component is threadedly connected to the upper end of the locking shaft. Rotating the rotating component in either the forward or reverse direction causes the locking shaft to move axially along the mounting hole, which can drive the locking hook to lock or unlock the second component and the first component located between the locking hook and the base. The entire mechanism is connected to the first component, preventing loss. It has a simple structure and is easy to use.
[0041] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 2 As shown, the rotating component 3 includes a rotating shaft 31, which is disposed on the base 1 corresponding to the mounting hole 11. The rotating shaft 31 has an internal thread, and the upper end of the locking shaft 2 has an external thread that mates with the internal thread. The internal and external threads can be trapezoidal threads, which provide balanced bidirectional force and are suitable for mechanisms requiring forward and reverse transmission. When the rotating shaft 31 rotates forward, the locking shaft 2 and the corresponding locking hook 21 move upward, locking the second component 5 and the first component 4; when the rotating shaft 31 rotates in the reverse direction, the locking shaft 2 and the corresponding locking hook 21 move downward, unlocking the second component 5 and the first component 4.
[0042] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2 As shown, the upper end of the locking shaft 2 is provided with a first limiting pin 6 to restrict the upward movement of the rotating shaft 31 along the locking shaft 2. That is, the first limiting pin 6 can restrict the upward movement of the rotating shaft 31 and prevent the rotating shaft 31 from falling off the upper end of the locking shaft 2.
[0043] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2 As shown, the rotating component 3 also includes a handle 32, one end of which is connected to the rotating shaft 31. The handle 32 increases the torque, helping the operator to drive the rotating shaft 31 to rotate, saving time and effort. Specifically, one end of the handle 32 is provided with an internal spline, and the rotating shaft 31 is provided with an external spline that mates with the internal spline. The main function of the spline is to transmit mechanical torque and rotational motion, and it has the characteristics of high load-bearing capacity, good centering, and excellent guiding properties.
[0044] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the handle 32 is provided with a weight reduction hole 321. The weight reduction hole 321 can effectively reduce the mass of the handle 32 while ensuring structural strength and rigidity, thereby making it easier for the user to operate.
[0045] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 2 As shown, the locking and unlocking mechanism further includes a spring 7, which is disposed in the mounting hole 11 and sleeved on the locking shaft 2. One end of the spring 7 abuts against the shoulder 111 of the mounting hole 11, and the other end of the spring 7 abuts against the shoulder 23 of the locking shaft 2. The spring 7 can play a reset role, ensuring that the locking shaft 2 can move down quickly when unlocking.
[0046] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 2 As shown, the locking shaft 2 has a strip groove 22 on its outer side, and the base 1 has a second limiting pin 8 that cooperates with the strip groove 22. The second limiting pin 8 and the strip groove 22 can restrict the locking shaft 2 from rotating with the rotating member 3, so that the locking shaft 2 can move axially along the mounting hole 11.
[0047] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 2 As shown, the locking hook 21 has stripes 211 on the side facing the base 1, and the stripes 211 can enhance the locking effect.
[0048] The locking and unlocking mechanism in this embodiment of the utility model works as follows:
[0049] Locking process: Rotate the handle 32 approximately 180 degrees clockwise. The handle 32 drives the rotating shaft 31 to rotate by the same angle. The rotating shaft 31 drives the locking shaft 2 to move upward, which in turn drives the locking hook 21 to move upward. During the entire process, the locking hook 21 moves approximately half the pitch of the trapezoidal thread, thereby locking the upper and lower first and second components. The first limiting pin 6 limits the rotating shaft 31, and the second limiting pin 8 limits the locking shaft 2.
[0050] Unlocking process: Rotate the handle 32 in the opposite direction by about 180 degrees. The handle 32 drives the rotating shaft 31 to rotate by the same angle. The rotating shaft 31 drives the locking shaft 2 to move downward, which in turn drives the locking hook 21 to move downward. During the whole process, the locking hook 21 moves by about half the pitch of the trapezoidal thread, thereby unlocking the upper and lower first and second components.
[0051] In addition, because the trapezoidal thread pitch is small, in order to ensure the high reliability of the locking and unlocking mechanism during the assembly and adjustment process, the rotation space of the handle 32 should be as close as possible to 180 degrees, while controlling the gap between the locking hook 21 and the base 1 in the unlocked state.
[0052] Wear and tear occurs after prolonged and frequent use, causing changes in the gap between the locking hook 21 and the base 1 in both locked and unlocked states. This results in unreliable locking and unlocking, necessitating readjustment of the locking and unlocking structure. The readjustment process involves: With the locking and unlocking structure in the unlocked state, adjusting the gap between the locking hook 21 and the base 1 according to installation requirements, securing it in place, removing the first limiting pin 6, removing the handle 32, adjusting the angle of the handle 32 to ensure it has the largest possible rotation angle, and reinstalling the first limiting pin 6. In other words, the locking and unlocking mechanism in this embodiment can be quickly disassembled and installed, achieving reliable locking and unlocking throughout its entire lifespan through readjustment.
[0053] This utility model embodiment also provides a mechanical device, including the aforementioned locking and unlocking mechanism.
[0054] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0055] It should be noted that in this invention, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0056] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.
Claims
1. A locking and unlocking mechanism, characterized by, include: A base (1) is provided on the first component (4), and the base (1) is provided with mounting holes (11). A locking shaft (2) is provided in the mounting hole (11) and can move axially along the mounting hole (11). The lower end of the locking shaft (2) is provided with a locking hook (21) spaced apart from the base (1). Rotating component (3), which is provided on the base (1) corresponding to the mounting hole (11) and is threadedly connected to the upper end of the locking shaft (2); The second component (5) is placed between the locking hook (21) and the base (1). The rotating component (3) is rotated in the forward or reverse direction, and the locking shaft (2) moves axially along the mounting hole (11), thereby driving the locking hook (21) to lock the second component (5) and the first component (4) or to unlock the second component (5) and the first component (4).
2. The locking and unlocking mechanism according to claim 1, characterized in that: The rotating component (3) includes a rotating shaft (31), which is located on the base (1). The rotating shaft (31) has an internal thread, and the upper end of the locking shaft (2) has an external thread that mates with the internal thread.
3. The locking and unlocking mechanism according to claim 2, characterized in that: The upper end of the locking shaft (2) is provided with a first limiting pin (6) to restrict the rotation shaft (31) from moving upward along the locking shaft (2).
4. The locking and unlocking mechanism according to claim 2, characterized in that: The rotating component (3) also includes a handle (32), one end of which is connected to the rotating shaft (31).
5. The locking and unlocking mechanism according to claim 4, characterized in that: One end of the handle (32) is provided with an internal spline, and the rotating shaft (31) is provided with an external spline that cooperates with the internal spline.
6. The locking and unlocking mechanism according to claim 4, wherein: The handle (32) is provided with a weight reduction hole (321).
7. The locking and unlocking mechanism according to claim 1, characterized in that, Also includes: Spring (7), the spring (7) is disposed in the mounting hole (11) and sleeved on the locking shaft (2), one end of the spring (7) abuts against the shoulder (111) of the mounting hole (11), and the other end of the spring (7) abuts against the shoulder (23) of the locking shaft (2).
8. The locking and unlocking mechanism according to claim 1, characterized in that: The locking shaft (2) has a strip groove (22) on its outer side, and the base (1) has a second limiting pin (8) that cooperates with the strip groove (22).
9. The locking and unlocking mechanism according to claim 1, characterized in that: The locking hook (21) has stripes (211) on the side facing the base (1).
10. A mechanical device, characterized in that, Includes the locking and unlocking mechanism as described in any one of claims 1-9.