Labor-saving push-pull lock
By designing the fulcrum protrusion and return spring on the lock tongue, combined with the sliding groove guidance, the problem of large resistance of traditional push-pull locks is solved, and the effect of saving effort and stable unlocking is achieved.
Patent Information
- Application Number
- CN202422016171.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The traditional push-pull lock has too large friction angle between the lock tongue and the buckle box, which leads to a large resistance and laboriousness during push-pull.
The upper and lower ends of the lock tongue are formed with fulcrum protrusions. The rear end of the lock tongue plate is connected to the reset spring. The fulcrum protrusion is the rotation fulcrum. The lock tongue flips away to reduce friction angle. Combined with the sliding groove guide and spring guide structure, the stable rotation and propulsion of the lock tongue are achieved.
Reduces the resistance of the push-pull lock, making the push-pull more lightweight and labor-saving, and can achieve stable unlocking and anti-locking functions.
Smart Images
Figure CN223062195U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of push-pull locks and relates to a labor-saving push-pull lock. Technical Background
[0002] For a traditional push-pull lock, when pushing or pulling a door, due to the too large friction angle between the lock tongue and the buckle box, the resistance is large and it is rather laborious to push and pull. Summary of the Invention
[0003] According to the above problems, the present invention provides a labor-saving push-pull lock, and this device has the advantages of being light and labor-saving in pushing and pulling.
[0004] The purpose of the present invention is achieved as follows:
[0005] A labor-saving push-pull lock includes a lock shell and a lock tongue. A lock tongue opening is provided on one side of the lock shell, and a lock tongue plate is provided behind the lock tongue. The lock tongue can rotate relative to the lock tongue plate. Fulcrum protrusions are formed at both the upper and lower ends of the lock tongue, and the two fulcrum protrusions abut against the rear end face of the lock shell panel. A return spring is connected to the rear end of the lock tongue plate, and the return spring always gives a force to push the lock tongue plate towards the lock tongue opening.
[0006] Through the design of the fulcrum protrusions in the present utility model, in the initial stage of pushing or pulling the door, after the lock tongue is stressed, taking one of the fulcrum protrusions as the rotation fulcrum, the lock tongue rotates, so that the friction angle between the lock tongue and the buckle box becomes smaller, thereby reducing the resistance. Then, as the door continues to be pushed or pulled, the lock tongue is pushed into the lock shell to unlock. This way can reduce the resistance when the push-pull lock is pushed and pulled, making the push and pull light.
[0007] The present utility model is further provided as: the rear end face of the lock tongue is an arc surface, the front end face of the lock tongue plate is a plane, and the rear end face of the lock tongue is in line contact with the front end face of the lock tongue plate.
[0008] Through the above settings, the relative rotation of the lock tongue and the lock tongue plate can be realized.
[0009] The present utility model is further provided as: the vertical height of the lock tongue plate is equal to the vertical height of the inner cavity of the lock shell.
[0010] Through the above settings, the lock tongue plate can move more stably in the lock shell.
[0011] The present utility model is further provided as: sliding grooves for the movement of the fulcrum protrusions are formed on the upper and lower two surfaces of the lock shell.
[0012] Through the above settings, the fulcrum protrusions can extend out of the lock shell. When the lock tongue rotates, the fulcrum protrusions can abut against the upper / lower end face of the lock tongue plate, preventing the lock tongue from rotating excessively, playing a role in rotating limit for the lock tongue, and also playing a guiding role in the lateral movement of the lock tongue.
[0013] The present utility model is further configured such that when the locking tongue rotates, one of the fulcrums abuts against the upper / lower end of the locking tongue plate.
[0014] The present utility model is further configured such that a spring guide post is connected to the rear end of the locking tongue plate, a return spring is sleeved on the spring guide post, a guide seat is provided in the lock housing, a guide hole is formed on the guide seat, the spring guide post is arranged in the guide hole, one end of the return spring abuts against the front end face of the guide seat, and the other end of the return spring abuts against the rear end face of the locking tongue plate.
[0015] Through the arrangement of the spring guide post, it plays a role in limiting the spring and also plays an auxiliary guiding role for the locking tongue plate, making the movement of the locking tongue plate more stable.
[0016] The present utility model is further configured such that an anti-lock lock core is further provided at the rear end of the spring guide post, an anti-lock end is provided on the anti-lock lock core, an anti-lock positioning protrusion is formed in the lock housing, and a boosting torsion spring is also connected to the anti-lock lock core.
[0017] Through the above arrangement, the push-pull lock can also play an anti-lock role.
[0018] The present utility model is further configured such that the locking tongue is in a water droplet shape, its isosceles triangle part extends out of the lock housing, its arc part is arranged behind the triangle part, and the fulcrum protrusion is arranged at the connection of the triangle part and the arc part.
[0019] Through the above arrangement, whether closing or opening the door, it is equally labor-saving.
[0020] The present utility model is further configured such that the rear end face of the locking tongue is an arc surface, the front end face of the locking tongue plate is an arc surface matching the rear end face of the locking tongue, and the rear end face of the locking tongue and the front end face of the locking tongue plate are in surface contact.
[0021] Through the above arrangement, the locking tongue can rotate more stably.
[0022] The present utility model is further configured such that a hinge seat is formed on the front end face of the locking tongue plate, hinge holes are formed on both sides of the locking tongue, and a hinge shaft passes through the hinge holes and is connected to the hinge seat.
[0023] The prominent and beneficial technical effects of the present invention compared with the prior art are as follows: Through the design of the fulcrum protrusion, in the initial stage of the sliding door, after the locking tongue is stressed, taking one of the fulcrum protrusions as the rotation fulcrum, the locking tongue rotates in reverse, thereby reducing the friction angle between the locking tongue and the buckle box, reducing the resistance, and then as the sliding door continues to be pushed, the locking tongue is pushed into the lock housing to achieve unlocking. This method can reduce the resistance when pushing and pulling the push-pull lock, making the push-pull light. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0025] Figure 1 It is a schematic structural diagram of the present utility model.
[0026] Figure 2 It is a schematic structural diagram in the closed door state.
[0027] Figure 3 It is a schematic structural diagram in the initial open door state.
[0028] Figure 4 It is a schematic structural diagram when the lock tongue completely extends into the lock case.
[0029] Figure 5 It is a schematic structural diagram when the door is anti-locked.
[0030] 1 - lock case; 2 - lock tongue; 3 - lock tongue opening; 4 - lock tongue plate; 5 - fulcrum protrusion; 6 - lock case panel; 7 - return spring; 8 - arc surface; 9 - flat surface; 10 - chute; 11 - spring guide post; 12 - guide seat; 13 - guide hole; 14 - anti-lock cylinder; 15 - anti-lock end; 16 - anti-lock positioning protrusion; 17 - assist torsion spring. Specific embodiments
[0031] To make the purpose, technical solutions and advantages of the present invention clearer, the following will describe the technical solutions of the present invention in detail. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.
[0032] Embodiment 1: A labor-saving push-pull lock includes a lock case 1 and a lock tongue 2. A lock tongue opening 3 is provided on one side of the lock case 1, and a lock tongue plate 4 is provided behind the lock tongue. The lock tongue 2 can rotate relative to the lock tongue plate 4. Fulcrum protrusions 5 are formed at both the upper and lower ends of the lock tongue 2, and the two fulcrum protrusions 5 abut against the rear end face of the lock case panel 6. The rear end of the lock tongue plate 4 is connected with a return spring 7, and the return spring 7 always gives the lock tongue plate 4 a force to push towards the lock tongue opening 3.
[0033] With the design of the fulcrum protrusion 5, in the initial stage of the sliding door, after the lock tongue 2 is stressed, with one of the fulcrum protrusions 5 abutted against the rear end face of the lock shell panel 6 as the rotation fulcrum, the lock tongue 2 flips, thereby reducing the friction angle between the lock tongue 2 and the buckle box, reducing the resistance. Then, as the sliding door is continuously pushed, the lock tongue 2 is pushed into the lock shell 1 to unlock. This method can reduce the resistance when pushing and pulling the sliding lock, making the push and pull easier.
[0034] The rear end face of the lock tongue 2 is an arc surface 8, and the front end face of the lock tongue plate 4 is a flat surface 9. The rear end face of the lock tongue 2 is in line contact with the front end face of the lock tongue plate 4. With the above settings, relative rotation between the lock tongue 2 and the lock tongue plate 4 can be achieved.
[0035] The vertical height of the lock tongue plate 4 is equal to the vertical height of the inner cavity of the lock shell 1. With the above settings, the lock tongue plate 4 can move more stably within the lock shell 1.
[0036] Chute 10 for the movement of the fulcrum protrusion 5 is formed on the upper and lower two surfaces of the lock shell 1. It also plays a guiding role in the lateral movement of the lock tongue 2.
[0037] When the lock tongue rotates, one of the fulcrums abuts against the upper / lower end of the lock tongue plate. Through the chute setting, the fulcrum protrusion 5 can extend outside the lock shell 1. When the lock tongue 2 rotates, the fulcrum protrusion 5 can abut against the upper / lower end face of the lock tongue plate 4, preventing the lock tongue from rotating excessively and playing a role in rotating limit for the lock tongue 2.
[0038] A spring guide post 11 is connected to the rear end of the lock tongue plate 4. The return spring 7 is sleeved on the spring guide post 11. A guide seat 12 is provided inside the lock shell 1, and a guide hole 13 is formed on the guide seat 12. The spring guide post 11 is arranged in the guide hole 13. One end of the return spring 7 abuts against the front end face of the guide seat 12, and the other end of the return spring 7 abuts against the rear end face of the lock tongue plate 4. Through the setting of the spring guide post 11, it plays a role in limiting the spring and also plays an auxiliary guiding role for the lock tongue plate 4, making the movement of the lock tongue plate 4 more stable.
[0039] An anti-lock lock core 14 is further provided at the rear end of the spring guide post 11. An anti-lock end 15 is provided on the anti-lock lock core 14. An anti-lock positioning protrusion 16 is formed inside the lock shell 1. A boosting torsion spring 17 is also connected to the anti-lock lock core 14. With the above settings, the sliding lock can also play an anti-lock role.
[0040] The lock tongue 2 is in a water droplet shape. Its isosceles triangle part extends outside the lock shell, its arc part is arranged behind the triangle part, and the fulcrum protrusion 5 is arranged at the connection of the triangle part and the arc part. With the above settings, whether closing or opening the door, it is equally labor-saving.
[0041] Embodiment 2: This embodiment is substantially the same as Embodiment 1, and the difference lies in that: the rear end face of the locking tongue is an arc surface, the front end face of the locking tongue plate is an arc surface matching the rear end face of the locking tongue, and the rear end face of the locking tongue and the front end face of the locking tongue plate are in surface contact. Through the above settings, the locking tongue can rotate more stably.
[0042] Embodiment 3: This embodiment is substantially the same as Embodiment 1, and the difference lies in that: a hinge seat is formed on the front end face of the locking tongue plate, hinge holes are formed on both sides of the locking tongue, and a hinge shaft is provided to pass through the hinge holes and connect with the hinge seat.
[0043] The present invention has the characteristics of being easy and labor-saving to push and pull.
[0044] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.
Claims
1. A labor-saving push-pull lock, comprising a lock case and a lock tongue. A lock tongue opening is provided on one side of the lock case. It is characterized in that, A locking tongue plate is provided behind the locking tongue. The locking tongue can rotate relative to the locking tongue plate. Fulcrum protrusions are formed at both the upper and lower ends of the locking tongue, and the two fulcrum protrusions abut against the rear end face of the lock case panel. A return spring is connected to the rear end of the locking tongue plate, and the return spring always applies a force to push the locking tongue plate towards the locking tongue opening.
2. The labor-saving push-pull lock according to claim 1, wherein: The rear end face of the locking tongue is an arc surface, and the front end face of the locking tongue plate is a flat surface. The rear end face of the locking tongue is in line contact with the front end face of the locking tongue plate.
3. The labor-saving push-pull lock according to claim 2, characterized in that: The vertical height of the locking tongue plate is equal to the vertical height of the inner cavity of the lock case.
4. The labor-saving push-pull lock according to claim 3, wherein: Chutes for the movement of the fulcrum protrusions are formed on the upper and lower surfaces of the lock case.
5. The labor-saving push-pull lock according to claim 4, characterized in that: When the locking tongue rotates, one of the fulcrums abuts against the upper / lower end of the locking tongue plate.
6. The labor-saving push-pull lock according to claim 1, characterized in that: A spring guide post is connected to the rear end of the locking tongue plate. The return spring is sleeved on the spring guide post. A guide seat is provided inside the lock case, and a guide hole is formed on the guide seat. The spring guide post is arranged in the guide hole. One end of the return spring abuts against the front end face of the guide seat, and the other end of the return spring abuts against the rear end face of the locking tongue plate.
7. The labor-saving push-pull lock according to claim 6, characterized in that: An anti-lock lock core is further provided at the rear end of the spring guide post. An anti-lock end is provided on the anti-lock lock core. Anti-lock positioning protrusions are formed inside the lock case, and a boosting torsion spring is also connected to the anti-lock lock core.
8. The labor-saving push-pull lock according to claim 1, characterized in that: The locking tongue is in a water droplet shape. Its isosceles triangle part extends outside the lock case, its arc part is arranged behind the triangle part, and the fulcrum protrusions are arranged at the connection of the triangle part and the arc part.
9. The labor-saving push-pull lock according to claim 1, wherein: The rear end face of the locking tongue is an arc surface, and the front end face of the locking tongue plate is an arc surface matching the rear end face of the locking tongue. The rear end face of the locking tongue is in surface contact with the front end face of the locking tongue plate.
10. A labor-saving push-pull lock according to claim 1, characterized in that: A hinge seat is formed on the front end face of the locking tongue plate. Hinge holes are formed on both sides of the locking tongue. A hinge shaft passes through the hinge holes and is connected to the hinge seat.