Spring bolt convenient to change direction and latch bolt lock
By designing a lock tongue structure with interchangeable directions, the problem of difficulty in selecting the installation direction of the lock body is solved, enabling flexible replacement of the lock tongue direction and reducing the return rate and production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GERUN INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-01-21
- Publication Date
- 2026-05-01
AI Technical Summary
The existing lock body requires the bolt direction to be selected according to the door opening direction during installation, which is difficult for consumers to select accurately, resulting in a high return and exchange rate and increased production costs.
A changeable locking tongue structure was designed. By setting screw holes, wrench grooves, anti-loosening plates and other components on the locking tongue and locking tongue rod, the locking tongue direction can be changed by rotating it from the front end of the locking tongue with a wrench. Automatic extension and retraction are achieved through torsion spring positioning grooves and locking tongue guides.
It enables flexible changing of the locking tongue direction, reduces the return and exchange rate, reduces production costs, and improves user experience and production efficiency.
Smart Images
Figure CN224187331U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lock bodies and relates to a lock tongue and a slanted latch lock that are easy to change direction. Background Technology
[0002] Currently, lock bodies on the market are assembled before delivery and sale. Therefore, consumers need to select the direction of the bolt according to their desired door opening direction when purchasing. However, many consumers are unaware of this and do not know the difference when buying. This results in the bolt direction of the purchased lock body not matching the intended door opening direction, requiring returns and exchanges, which is very inconvenient. Moreover, producing lock bodies with bolts of different directions requires two production lines, increasing production costs. Summary of the Invention
[0003] In view of the above problems, the present invention provides a bolt and latch lock with convenient direction changing. The device has the advantage of being able to easily change the direction of the bolt as needed.
[0004] The objective of this invention is achieved as follows:
[0005] A locking tongue that facilitates changing direction includes a locking tongue portion and a locking tongue rod. The rear end of the locking tongue portion has a through-hole with an internal thread. The front end of the locking tongue rod has an external thread. The front end of the locking tongue rod is screwed into the screw hole through the external thread. The front end of the locking tongue rod also has a wrench groove.
[0006] With the above settings, when you need to change the direction of the latch, simply insert the corresponding wrench into the screw hole from the front end of the latch, align the wrench with the wrench slot, and then rotate the wrench to separate the latch and the latch rod. Then, change the direction of the latch and screw the latch rod back into the screw hole to complete the change of the latch direction.
[0007] The present invention is further configured such that: an anti-loosening groove is formed inside the locking tongue, the anti-loosening groove is perpendicularly arranged to intersect the axis of the screw hole, an anti-loosening plate is provided inside the anti-loosening groove, and the front end of the locking tongue rod passes through the anti-loosening plate.
[0008] The anti-loosening plate prevents the latch from loosening due to long-term vibrations from opening and closing the door.
[0009] The present invention is further configured such that the anti-loosening sheet is made of rubber or plastic.
[0010] By implementing the above settings, the anti-loosening sheet can have a certain degree of elasticity, resulting in a better anti-loosening effect.
[0011] The present invention is further configured such that a positioning platform is formed on the locking tongue rod, and when the locking tongue rod is tightened with the locking tongue part, the positioning platform abuts against the rear end of the locking tongue part.
[0012] By setting up a positioning platform, the distance the locking tongue rod should be screwed into the screw hole can be accurately determined, preventing the locking tongue rod from extending too far into the screw hole.
[0013] The present invention is further configured such that a torsion spring positioning groove is provided at the rear end of the locking tongue rod.
[0014] By using the design of the torsion spring positioning groove, the torsion spring located in the lock body abuts against the torsion spring positioning groove, so that the torsion spring always applies a force to the bolt rod in the direction of the bolt.
[0015] The present invention is further configured such that the front end face of the latch is formed with an inclined surface.
[0016] The present invention is further configured such that: two silencing grooves are formed on the inclined surface of the front end of the locking tongue, and a buffer plate is provided in the silencing groove, with the front end of the buffer plate protruding out of the silencing groove.
[0017] The buffer plate helps to cushion and silence the latch when it extends and touches the lock case when the door is closed.
[0018] The present invention is further configured such that the wrench groove is a pentagonal groove, a hexagonal groove, or an octagonal groove.
[0019] A latch lock using the aforementioned latch includes a lock body, a lock shell having a latch hole, the latch being disposed within the latch hole, a latch guide being disposed within the lock shell, a latch guide groove being formed on the latch guide, a latch rod being disposed within the latch guide groove, a limit block being formed at the rear end of the latch rod, a torsion spring positioning groove being formed on the rear end face of the limit block, a torsion spring being disposed within the lock shell, one end of the torsion spring abutting against the torsion spring positioning groove and constantly providing a force for the latch to extend outward from the latch hole; an unlocking actuation component is also rotatably disposed within the lock shell, the unlocking end of the unlocking actuation component extending towards the latch rod and disposed between the latch guide and the latch limit block.
[0020] With the above setup, when opening the door, turning the handle to engage the unlocking mechanism moves the bolt rod backward, causing the bolt to retract. After releasing the handle, the bolt automatically extends under the action of the torsion spring. To change the bolt direction, a wrench can be inserted from the outside of the lock body through a through-hole, entering from the front. The wrench is then matched with the wrench slot and rotated, causing the bolt to retract from the lock housing. After changing the direction, the bolt and bolt rod can be tightened again.
[0021] The present invention is further configured such that the torsion spring positioning groove is a cross groove.
[0022] The cross groove design makes it easier to adjust the torsion spring's positioning direction after the latch rod is screwed into the latch, as long as one groove of the cross groove matches the torsion spring.
[0023] The outstanding and beneficial technical effect of this invention compared with the prior art is that when it is necessary to change the direction of the latch, simply insert the corresponding wrench into the screw hole from the front end of the latch, align the wrench and the wrench groove, and then rotate the wrench to separate the latch and the latch rod. Then, change the direction of the latch and screw the latch rod back into the screw hole to complete the change of the latch direction. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is one of the structural schematic diagrams of the locking tongue in Example 1.
[0026] Figure 2 This is the second schematic diagram of the locking tongue in Example 1.
[0027] Figure 3 This is an exploded view of the locking tongue structure in Example 1.
[0028] Figure 4 This is one of the exploded views of the locking tongue structure in Example 2.
[0029] Figure 5 This is the second exploded view of the locking tongue structure in Example 2.
[0030] Figure 6 This is a schematic diagram of a slanted latch lock.
[0031] 0-Lock tongue; 1-Lock tongue part; 2-Lock tongue rod; 3-Screw hole; 4-Internal thread; 5-External thread; 6-Wrench groove; 7-Positioning platform; 8-Torsion spring positioning groove; 9-Torsion spring; 10-Anti-loosening groove; 11-Anti-loosening plate; 12-Silence groove; 13-Buffer plate; 20-Lock body; 21-Lock shell; 22-Lock tongue hole; 23-Lock tongue guide; 24-Lock tongue guide groove; 25-Limit block; 26-Unlocking actuator; 27-Unlocking end. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0033] Example 1: A locking tongue 0 that facilitates changing direction includes a locking tongue portion 1 and a locking tongue rod 2. The rear end of the locking tongue portion 1 has a through-hole 3 with an internal thread 4 formed inside. The front end of the locking tongue rod 2 has an external thread 5. The front end of the locking tongue rod 2 is screwed into the screw hole 3 through the external thread 5. The front end of the locking tongue rod 2 also has a wrench groove 6, which can be a pentagonal, hexagonal, or octagonal groove. Correspondingly, a pentagonal wrench, a hexagonal wrench, or an octagonal wrench can be selected.
[0034] With the above settings, when it is necessary to change the direction of the latch, simply insert the corresponding wrench into the screw hole 3 from the front end of the latch 1, align the wrench with the wrench groove 6, and then rotate the wrench to separate the latch 1 and the latch rod 2. Then, change the direction of the latch 1 and screw the latch rod 2 back into the screw hole to complete the change of the latch direction.
[0035] The locking tongue 2 is also formed with a positioning platform 7. When the locking tongue 2 is tightened with the locking tongue part 1, the positioning platform 7 abuts against the rear end of the locking tongue part 1. By setting the positioning platform 7, the distance of the locking tongue 2 screwed into the screw hole 3 can be accurately positioned, and the locking tongue 2 can be prevented from extending too far into the screw hole 3.
[0036] The rear end of the latch rod 2 is provided with a torsion spring positioning groove 8. Through the design of the torsion spring positioning groove 8, the torsion spring 9 located in the lock body abuts against the torsion spring positioning groove 8, so that the torsion spring 9 always applies a force to the latch rod 2 in the direction of the latch part 1.
[0037] The front end face of the latch 1 is formed with a bevel.
[0038] Example 2: This example is basically the same as Example 1, except that: the inner part 2 of the latch also has an anti-loosening groove 10, which is perpendicular to the axis of the screw hole 3. An anti-loosening plate 11 is provided in the anti-loosening groove 10, and the front end of the latch rod 2 passes through the anti-loosening plate 11. The anti-loosening plate 11 prevents the latch 1 from loosening during long-term opening and closing vibrations.
[0039] The anti-loosening sheet 11 is made of rubber or plastic. This design allows the anti-loosening sheet to have a certain degree of elasticity, resulting in a better anti-loosening effect.
[0040] Two silencing grooves 12 are formed on the inclined surface at the front end of the latch, and a buffer plate 13 is provided in the silencing groove 12. The front end of the buffer plate 13 protrudes out of the silencing groove 12. By setting the buffer plate 13, the latch extends and hits the lock shell when the door is closed, thus achieving a buffering and silencing effect.
[0041] A latch lock using the aforementioned latch includes a lock body 20. A latch hole 22 is provided on the lock shell 21 of the lock body 20. The latch 0 is disposed within the latch hole 22. A latch guide 23 is also provided within the lock shell 21. A latch guide groove 24 is formed on the latch guide 23. A latch rod 2 is disposed within the latch guide groove 24. A limiting block 25 is formed at the rear end of the latch rod 2. A torsion spring positioning groove 8 is formed on the rear end face of the limiting block 25. A torsion spring 9 is also provided within the lock shell. One end of the torsion spring 9 abuts against the torsion spring positioning groove 8 and continuously provides force to push the latch 0 outward from the latch hole 22. An unlocking actuation member 26 is rotatably disposed within the lock shell 21. The unlocking end 27 of the unlocking actuation member 26 extends towards the latch rod 2 and is disposed between the latch guide 23 and the latch limiting block 25.
[0042] With the above setup, when opening the door, turning the unlocking lever 26 via the handle moves the bolt 2 backward, causing the bolt 0 to retract. After releasing the handle, the bolt automatically extends under the action of the torsion spring 9. When it is necessary to change the direction of the bolt, a wrench can be inserted from the outside of the lock body through the through-hole 3, entering from the front of the hole 3, and then rotating it to match the wrench hole. The bolt 1 then exits from the lock housing 21. After changing the direction, the bolt 1 and bolt 2 are then tightened again.
[0043] The torsion spring positioning groove 8 is a cross groove. The cross groove design makes it easier to adjust the direction of the torsion spring positioning groove after the latch rod is screwed into the latch, as long as one groove of the cross groove matches the torsion spring.
[0044] This utility model has the feature of allowing for convenient replacement of the bolt direction according to needs.
[0045] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.
Claims
1. A lock tongue which is convenient to change the direction, comprising a lock tongue part and a lock tongue rod, characterized in that, The rear end of the latch has a through screw hole with internal threads, and the front end of the latch rod has external threads. The front end of the latch rod is screwed into the screw hole through the external threads, and the front end of the latch rod also has a wrench groove.
2. A lock bolt according to claim 1, wherein: The locking tongue is also formed with an anti-loosening groove, which is perpendicular to the axis of the screw hole. An anti-loosening plate is provided in the anti-loosening groove, and the front end of the locking tongue rod passes through the anti-loosening plate.
3. A lock bolt according to claim 2, wherein: The anti-loosening sheet is made of rubber or plastic.
4. A lock bolt according to claim 1, wherein: The locking tongue rod is also formed with a positioning platform. When the locking tongue rod is tightened with the locking tongue part, the positioning platform abuts against the rear end of the locking tongue part.
5. A locking tongue for convenient direction changing according to claim 1, characterized in that: The rear end of the locking tongue rod is provided with a torsion spring positioning groove.
6. A locking tongue for convenient direction changing according to claim 1, characterized in that: The front end face of the latch is formed with a bevel.
7. A locking tongue for convenient direction changing according to claim 6, characterized in that: Two silencing grooves are also formed on the inclined surface at the front end of the locking tongue. A buffer plate is provided in the silencing groove, and the front end of the buffer plate protrudes out of the silencing groove.
8. A lock bolt according to claim 1, wherein: The wrench groove is a pentagonal groove, a hexagonal groove, or an octagonal groove.
9. A sash lock using the dead bolt according to claim 1, characterized in that: The lock includes a lock body, a lock shell with a latch hole, the latch being disposed within the latch hole, a latch guide within the lock shell with a latch guide groove, a latch rod disposed within the latch guide groove, a limit block being formed at the rear end of the latch rod, a torsion spring positioning groove being formed on the rear end face of the limit block, a torsion spring within the lock shell with one end abutting against the torsion spring positioning groove and constantly providing force to push the latch out of the latch hole; and an unlocking actuation component rotatably disposed within the lock shell, the unlocking end of the unlocking actuation component extending towards the latch rod and disposed between the latch guide and the latch limit block.
10. A latch according to claim 9, wherein: The torsion spring positioning groove is a cross groove.