Rotating wheel type mechanical lock
By introducing the design of limit roulette and retaining ring shrapnel into the rotary wheel mechanical lock, the problem of inaccurate rotation angle of the traditional rotary wheel mechanical lock is solved, and the effect of accurate rotation angle and strong controllability is achieved, which improves the overall function and practicality.
Patent Information
- Application Number
- CN202422238631.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The traditional rotary wheel mechanical lock has a simple structure on the civil defense door, and the rotation angle is inaccurate. It is impossible to determine the opening and closing of the door when it is rotated to the point of rotation. It has poor controllability and poor overall effect.
A rotary wheel mechanical lock is designed, including a lock ring, guide sleeve, lock pin, shaft, cam, limit wheel and retaining ring main body. Through the coordination of the limit groove of the limit wheel and the retaining ring shrapnel, precise control of the rotation angle is achieved, and the elastic parts and handwheels are used for operation.
It achieves accurate rotation angle, strong controllability, complete functions, strong practicality, and optimized overall effect.
Smart Images
Figure CN223151809U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical equipment, and more specifically, it relates to a rotary mechanical lock. Background Art
[0002] A mechanical lock for opening and closing a door is usually provided on an underground civil air defense door. When the civil air defense door is closed, it plays a locking role. The traditional rotary mechanical lock configured on the civil air defense door has a simple structure, inaccurate rotation angle, and it is impossible to determine how many circumferential angles it needs to rotate to open and close the civil air defense door, resulting in poor controllability and overall unsatisfactory effect. Accordingly, the utility model provides a rotary mechanical lock. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art, and provide a rotary mechanical lock with accurate rotation angle and excellent controllability.
[0004] To solve the above technical problems, the purpose of the utility model is realized as follows: A rotary mechanical lock according to the utility model includes a lock ring provided on a door frame and a guide sleeve provided on a door panel. The guide sleeve and the lock ring are coaxially arranged. A lock pin that can be inserted into the lock ring is slidably connected in the guide sleeve. One end of the lock pin facing away from the lock ring is provided with a shaft rotatably connected to the door panel. A cam that follows is provided on the shaft. A limiting portion provided on the lock pin is arranged between the cam and the lock pin. The cam surface abuts against the limiting portion. An elastic member that abuts against the guide sleeve at one end and the cam at the other end is sleeved on the lock pin. A handwheel for controlling rotation is provided on the shaft.
[0005] The utility model is further provided as follows: A limiting wheel disc is coaxially arranged on the shaft. A plurality of limiting grooves with equal adjacent interval angles are circumferentially arranged on the side surface of the limiting wheel disc. A retaining ring main body fixed to the door panel is arranged outside the limiting wheel disc. Elastic retaining ring pieces that are respectively matched with the limiting grooves are arranged on the inner side surface of the retaining ring main body. The elastic retaining ring pieces are respectively embedded in the limiting grooves. One end of each elastic retaining ring piece is connected to the retaining ring main body.
[0006] The utility model is further provided as follows: The cross-section of the elastic retaining ring piece is in a "C" shape.
[0007] The utility model is further provided as follows: The bottom of the retaining ring main body has a retaining ring seat for connection.
[0008] The utility model is further provided as follows: The number of the limiting grooves is four, eight or twelve.
[0009] The utility model is further provided as follows: A limiting hole extending circumferentially is formed on the limiting wheel disc. A limiting pin connected to the door panel is slidably connected in the limiting hole.
[0010] The present utility model is further configured such that: the extended circumferential angle of the limiting hole is 90°.
[0011] The present utility model is further configured such that: the cam is a single-leaf cam.
[0012] The present utility model is further configured such that: the elastic member is a compression spring.
[0013] In summary, the present utility model has the following beneficial effects: The rotary mechanical lock involved in the present utility model, by configuring a follower limiting wheel disc on the shaft, with limiting grooves circumferentially distributed on the side surface of the limiting wheel disc, and cooperating with the retaining ring main body on the outside, the angle of the rotating limiting wheel disc is limited by the retaining ring elastic piece thereon, so that when the handwheel operates the mechanical lock to open and close, the rotation angle is accurate, the controllability is excellent, the overall function is perfect, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is the overall structural schematic diagram of the present utility model;
[0015] Figure 2 is the partial structural schematic diagram of the present utility model;
[0016] Figure 3 is the local structural schematic diagram of the present utility model;
[0017] Figure 4 is the structural schematic diagram of the present utility model for embodying the retaining ring main body. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the preferred implementation schemes of the present utility model will be described below in conjunction with specific embodiments. However, it should be understood that these descriptions are only for further explaining the features and advantages of the present utility model, rather than limiting the patent requirements of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] The present utility model will be further described below in conjunction with the drawings and preferred embodiments.
[0020] Embodiment 1
[0021] See Figures 1 to 4As shown in the figure, a rotary mechanical lock involved in this embodiment includes a lock ring 1 provided on a door frame (not shown), and a guide sleeve 2 provided on a door panel (not shown). The guide sleeve 2 and the lock ring 1 are coaxially arranged. A lock pin 3 that can be inserted into the lock ring is slidably connected in the guide sleeve 2. One end of the lock pin 3 facing away from the lock ring is provided with a shaft 4 rotatably connected to the door panel. A cam 5 that follows is provided on the shaft 4. A limiting portion 6 provided on the lock pin is arranged between the cam 5 and the lock pin 3. The cam surface of the cam 5 abuts against the limiting portion 6. An elastic member 8 that abuts against the guide sleeve at one end and the cam at the other end is sleeved on the lock pin 3. A hand wheel 9 for controlling rotation is provided on the shaft 4.
[0022] Further, a limiting wheel disc 10 is coaxially arranged on the shaft 4. Eight limiting grooves 11 with equal adjacent interval angles are circumferentially distributed on the side surface of the limiting wheel disc 10. A retaining ring main body 12 fixed to the door panel is arranged outside the limiting wheel disc 10. Retaining ring elastic pieces 13 that are respectively matched with the limiting grooves are arranged on the inner side surface of the retaining ring main body 12. The retaining ring elastic pieces 13 are respectively embedded in the limiting grooves 11. One end of the retaining ring elastic piece 13 is connected to the retaining ring main body 12; the cross section of the retaining ring elastic piece 13 is in a "C" shape.
[0023] Further, the bottom of the retaining ring main body 12 has a retaining ring seat 14 for connection.
[0024] Further, a limiting hole 15 extending 90° circumferentially is formed in the limiting wheel disc 10. A limiting pin 16 connected to the door panel is slidably connected in the limiting hole 15.
[0025] Further, the cam 5 is a single-leaf cam.
[0026] Further, the elastic member 8 is a compression spring.
[0027] In this embodiment, by operating the hand wheel 9 to rotate 90°, the limiting wheel disc 10 also rotates 90° correspondingly, changing the retaining ring elastic pieces 13 embedded in the limiting grooves 11 until the shaft 4 maintains circumferential positioning. During this period, the cam 5 is linked to laterally push the lock pin 3 until the lock pin 3 is inserted into the lock ring 1 to realize the locking of the mechanical lock.
[0028] Among them, through the arrangement of the limiting hole 15 and the limiting pin 16, the angle limiting function is achieved when the limiting wheel disc 10 rotates.
[0029] For the rotary mechanical lock involved in the present invention, by configuring a following limiting wheel disc on the shaft, limiting grooves are circumferentially distributed on the side surface of the limiting wheel disc, and a retaining ring main body is arranged outside. The retaining ring elastic pieces on it perform angle limiting on the rotating limiting wheel disc, so that during the process of operating the mechanical lock to open and close by the hand wheel, the rotation angle is accurate, the controllability is excellent, the overall function is perfect, and the practicability is strong.
[0030] Unless otherwise specified, in this utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial direction", "radial direction", "circumferential direction", etc., the orientation or positional relationship indicated is based on the actual orientation or positional relationship shown. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the orientation or positional relationship in this utility model are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the embodiments and according to the specific circumstances.
[0031] Unless otherwise clearly defined and limited, in this utility model, if there are terms such as "arranged", "connected" and "coupled", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.
[0032] The preferred specific embodiments of this utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of this utility model without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of this utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.
Claims
1. A rotary mechanical lock, comprising a lock ring arranged on a door frame and a guide sleeve arranged on a door panel. The guide sleeve and the lock ring are coaxially arranged. A lock pin that can be inserted into the lock ring is slidably connected in the guide sleeve. It is characterized in that: One end of the locking pin facing away from the locking ring is provided with a shaft rotatably connected to the door panel. A cam that follows is provided on the shaft. A limiting portion is provided on the locking pin between the cam and the locking pin. The cam surface of the cam abuts against the limiting portion. An elastic member is sleeved on the locking pin, with one end abutting against the guide sleeve and the other end abutting against the cam. A handwheel for controlling rotation is provided on the shaft.
2. The rotary mechanical lock according to claim 1, wherein: A limiting wheel disc is coaxially arranged on the shaft. A plurality of limiting grooves with equal adjacent interval angles are circumferentially arranged on the side surface of the limiting wheel disc. A retaining ring main body fixed to the door panel is provided outside the limiting wheel disc. A retaining ring elastic piece that matches the limiting grooves one by one is provided on the inner side surface of the retaining ring main body. The retaining ring elastic pieces are respectively embedded in the limiting grooves. One end of the retaining ring elastic piece is connected to the retaining ring main body.
3. The rotary mechanical lock according to claim 2, wherein: The cross section of the retaining ring elastic piece is in a "C" shape.
4. The rotary mechanical lock according to claim 2 or 3, characterized in that: The bottom of the retaining ring main body has a retaining ring seat for connection.
5. The rotary mechanical lock according to claim 4, characterized in that: The number of the limiting grooves is four, eight or twelve.
6. The rotary mechanical lock according to claim 5, characterized in that: A limiting hole extending in the circumferential direction is formed in the limiting wheel disc. A limiting pin connected to the door panel is slidably connected in the limiting hole.
7. The rotary mechanical lock according to claim 6, wherein: The extended circumferential angle of the limiting hole is 90°.
8. The rotary mechanical lock according to claim 1, characterized in that: The cam is a single-leaf cam.
9. The rotary mechanical lock according to claim 1, wherein: The elastic member is a compression spring.