A self-retracting lock body

Abstract

The utility model discloses a kind of self-locking bodies of pull rod structure, it is related to door lock technical field, including the main tongue component, bevel tongue component and self-bounce component being arranged in lock shell, the main tongue component includes main tongue piece, shaft sleeve and first torsion spring, the shaft sleeve is sleeved on the shaft of the lock shell, the main tongue piece is equipped with sliding slot, the sliding slot is sleeved on the shaft sleeve, the first torsion spring is sleeved in the shaft sleeve, the self-bounce component is stuck the shaft sleeve, the main tongue piece is equipped with main tongue head;When the shaft sleeve is loosened by self-bounce component, the shaft sleeve rotates under the action of first torsion spring, the shaft sleeve rotates in the sliding slot to drive the main tongue piece to move, so that the main tongue head extends out of the lock shell;The utility model can realize automatic locking, save the time of user locking, and use experience is better.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, specifically a pull rod structure self-spring lock body. Background Technology

[0002] Smart door locks typically include multiple latches, such as the master latch and the oblique latch.

[0003] In existing multi-latch smart door locks, the slant latch can usually lock automatically, that is, when the door is closed, the slant latch can retract and then automatically extend to achieve automatic locking; while the main latch usually requires manual extension of the main latch through the handle to achieve locking.

[0004] The manual locking method using a handle makes locking the master latch time-consuming. Users often rush out without manually locking the master latch, resulting in its neglect and the master latch failing to fulfill its original function.

[0005] Therefore, the structure of smart door locks needs further optimization. Utility Model Content

[0006] This utility model discloses a pull rod structure self-locking body to solve the technical problem that the main tongue lock needs to be manually locked.

[0007] To solve the above-mentioned technical problems, the present invention proposes the following optimized technical solution:

[0008] A lever-type self-locking body includes a main tongue assembly, a latch assembly, and a self-locking assembly disposed within a lock housing. The main tongue assembly includes a main tongue member, a bushing, and a first torsion spring. The bushing is sleeved on a shaft of the lock housing. The main tongue member has a sliding groove, which is sleeved on the bushing. The first torsion spring is sleeved inside the bushing. The self-locking assembly hooks onto the bushing. The main tongue member has a main tongue.

[0009] When the bushing is released by the self-spring assembly, the bushing rotates under the action of the first torsion spring. The bushing rotates within the slide groove to drive the main tongue to move, causing the main tongue to extend out of the lock housing.

[0010] Furthermore, it also includes a clutch assembly for connecting the handle.

[0011] Furthermore, the latch assembly includes a latch tongue, a first connecting rod, and a linkage part. One end of the first connecting rod is connected to the latch tongue, and the other end is connected to the linkage part. The linkage part is used for the clutch assembly to abut against it. When the clutch assembly rotates, the clutch assembly pushes the linkage part to retract the latch tongue into the lock housing.

[0012] Furthermore, the tongue assembly also includes a first spring, which is sleeved on the first connecting rod.

[0013] Furthermore, the self-spring assembly includes a self-spring body, a first linkage member, a second linkage member, and a second torsion spring. The middle part of the first linkage member is rotatably connected to the lock housing via a first rotating shaft. One end of the first linkage member is provided with a linkage post, and the self-spring body hooks onto the linkage post. One end of the second linkage member is connected to the first rotating shaft, and the other end hooks onto the main tongue assembly. The second torsion spring is sleeved on the first linkage member.

[0014] When the door is closed, the self-elastic body releases the linkage column, and the second torsion spring causes the other end of the first linkage member to abut against the latch assembly. The latch assembly extends out of the lock housing to drive the first rotating shaft to rotate, and the rotation of the first rotating shaft causes the second linkage member to move to release the main latch assembly.

[0015] Furthermore, the self-elastic body includes a self-elastic tongue, a second connecting rod, and a second spring. One end of the second connecting rod is connected to the self-elastic tongue, and the other end is provided with a first hook. The first hook hooks the linkage column, and the second spring is sleeved on the second connecting rod.

[0016] Furthermore, one end of the second linkage is sleeved on the first rotating shaft, and the other end is provided with a second hook. The shaft sleeve is provided with a notch, and the second hook is used to hook the notch.

[0017] Furthermore, the main tongue assembly also includes a pull rod tooth and a pull rod plate, both of which are sleeved on the bushing, and the pull rod tooth engages with the clutch assembly;

[0018] When the clutch assembly rotates, it drives the pull rod tooth to rotate, the pull rod tooth to rotate the bushing, and the bushing drives the main tongue to move, causing the main tongue to retract into the lock housing.

[0019] The present invention has the following advantages over the prior art:

[0020] This utility model is equipped with a main tongue assembly, a slanted tongue assembly, and a self-locking assembly. When the door is closed, the self-locking assembly is squeezed into the lock housing by the door frame. The self-locking assembly releases the bushing, and the bushing rotates in the slide groove under the force of the first torsion spring. The bushing drives the main tongue to move, so that the main tongue extends out of the lock housing, thereby realizing automatic locking, saving the user's locking time and improving the user experience. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the internal structure of the lock case of this utility model. Figure 1 .

[0023] Figure 3 This is a schematic diagram of the internal structure of the lock case of this utility model. Figure 2 .

[0024] Figure 4 This is an exploded view of the main tongue assembly of this utility model.

[0025] In the diagram: 100, lock case; 200, main latch assembly; 210, main latch piece; 211, slide groove; 212, main latch; 220, bushing; 230, first torsion spring; 240, pull rod toothed piece; 250, pull rod piece; 300, latch assembly; 310, latch; 320, first connecting rod; 330, linkage part; 340, first spring; 400, self-springing assembly; 410, self-springing latch; 420, second connecting rod; 421, first hook part; 430, second spring; 440, first linkage part; 441, linkage column; 450, second linkage part; 451, second hook part; 460, second torsion spring; 470, first pivot; 500, clutch assembly; 600, lock cylinder assembly; 610, lock cylinder dial; 611, protrusion; 620, lock cylinder dial. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] See Figures 1-4 A lever-type self-spring lock body includes a main tongue assembly 200, a latch assembly 300, and a self-springing assembly 400 disposed within a lock housing 100. The main tongue assembly 200 includes a main tongue member 210, a bushing 220, and a first torsion spring 230. The bushing 220 is sleeved on the shaft of the lock housing 100. The main tongue member 210 is provided with a sliding groove 211, which is sleeved on the bushing 220. The first torsion spring 230 is sleeved inside the bushing 220. The self-springing assembly 400 hooks onto the bushing 220. The main tongue member 210 is provided with a main tongue 212.

[0028] When the door is closed, the self-locking assembly 400 is pressed into the lock housing 100 by the door frame. At this time, the self-locking assembly 400 releases the bushing 220. The bushing 220 rotates under the action of the first torsion spring 230. Since the inner wall of the slide groove 211 contacts and exerts a slight squeezing effect on the bushing 220, the bushing 220 has a frictional force on the inner wall of the slide groove 211 when it rotates. Therefore, the bushing 220 can drive the main tongue 210 to move. Specifically, the main tongue 210 moves outward from the lock housing 100, so that the main tongue 212 extends out of the lock housing 100, thus achieving the effect of automatic locking.

[0029] In this embodiment, a clutch assembly 500 is also included. The clutch assembly 500 is used to connect to the handle and to drive the latch bolt assembly 300 and the main bolt assembly 200 to unlock. Specifically, rotating the handle causes the clutch assembly 500 to rotate, which in turn causes the latch bolt assembly 300 and the main bolt assembly 200 to retract into the lock housing 100, thereby unlocking the lock.

[0030] In this embodiment, the latch assembly 300 includes a latch 310, a first connecting rod 320, and a linkage part 330. One end of the first connecting rod 320 is connected to the latch 310, and the other end is connected to the linkage part 330. The linkage part 330 is used for the clutch assembly 500 to abut against it. When the clutch assembly 500 rotates, it pushes the linkage part 330 to retract the latch 310 into the lock housing 100. When the door is closed, the latch assembly 300 retracts into the lock housing 100 and then extends out of it. When the latch assembly 300 extends out of the lock housing 100, it drives the self-springing assembly 400 to release the main latch assembly 200, thereby unlocking the main latch assembly 200. The linkage 330 abuts against the clutch assembly 500. When the handle is turned, the handle drives the clutch assembly 500 to rotate. The clutch assembly 500 pushes the linkage 330, thereby pushing the tongue assembly 300, causing the tongue 310 to retract into the lock housing 100.

[0031] In this embodiment, the latch assembly 300 further includes a first spring 340, which is sleeved on the first connecting rod 320 and is used to reset the first connecting rod 320. When the latch 310 is not pressed by the door frame, the rebound force of the first spring 340 causes the first connecting rod 320 to move outward from the lock housing 100, thereby resetting the latch 310 and extending it out of the lock housing 100.

[0032] In this embodiment, the self-spring assembly 400 includes a self-spring body, a first linkage 440, a second linkage 450, and a second torsion spring 460. The middle part of the first linkage 440 is rotatably connected to the lock housing 100 via a first rotating shaft 470. One end of the first linkage 440 is provided with a linkage post 441, and the self-spring body hooks onto the linkage post 441. One end of the second linkage 450 is connected to the first rotating shaft 470, and the other end hooks onto the main tongue assembly 200. The second torsion spring 460 is sleeved on the first linkage 440.

[0033] When the door is closed, the self-springing body is squeezed by the door frame and retracts into the lock housing 100. At this time, the self-springing body releases the linkage pin 441. The force of the second torsion spring 460 causes the first linkage member 440 to rotate, so that the other end of the first linkage member 440 abuts against the linkage part 330 of the latch assembly 300. The latch assembly 300 extends out of the lock housing 100 to drive the first rotating shaft 470 to rotate. The rotation of the first rotating shaft 470 causes the second linkage member 450 to move to release the main latch assembly 200, specifically releasing the pull rod 250 of the main latch assembly 200, thereby locking the main latch assembly 200.

[0034] In this embodiment, the self-springing body includes a self-springing tongue 410, a second connecting rod 420, and a second spring 430. One end of the second connecting rod 420 is connected to the self-springing tongue 410, and the other end is provided with a first hook 421. The first hook 421 hooks the linkage column 441, and the second spring 430 is sleeved on the second connecting rod 420.

[0035] When the door is closed, the self-springing latch 410 abuts against the door frame and retracts into the lock housing 100. At this time, the second spring 430 is compressed, and the first connecting rod 320 moves to release the linkage post 441 of the first linkage member 440, so that the first linkage member 440 abuts against the linkage part 330 of the latch assembly 300 under the action of the second torsion spring 460. When the door is opened, the second spring 430 is used to reset the self-springing latch 410, the first hook 421 hooks the linkage post 441, the first linkage member 440 separates from the linkage part 330 of the latch assembly 300, and the second linkage member 450 hooks the notch of the central bushing 220 of the main latch assembly 200. At this time, the action of the latch assembly 300 cannot affect the first linkage member 440 and the second linkage member 450.

[0036] In this embodiment, one end of the second linkage 450 is sleeved on the first rotating shaft 470, and the other end is provided with a second hook 451. The bushing 220 is provided with a notch, and the second hook 451 is used to hook the notch. When the first hook 421 hooks the bushing 220, the main tongue 212 retracts into the lock housing 100.

[0037] In this embodiment, the main tongue assembly 200 further includes a pull rod tooth 240 and a pull rod plate 250, both of which are sleeved on the bushing 220, and the pull rod tooth 240 engages with the clutch assembly 500;

[0038] When the handle is turned, the handle drives the clutch assembly 500 to rotate, the clutch assembly 500 drives the pull rod tooth 240 to rotate, the pull rod tooth 240 drives the bushing 220 to rotate, and the bushing 220 drives the main tongue 210 to move, causing the main tongue 212 to retract into the lock housing 100, thereby unlocking the lock by the handle.

[0039] 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 claimed herein.

Claims

1. A lever-type self-locking body, comprising a main bolt assembly, a latch bolt assembly, and a self-locking assembly disposed within a lock housing, characterized in that, The main tongue assembly includes a main tongue member, a bushing, and a first torsion spring. The bushing is fitted onto the shaft of the lock housing. The main tongue member has a sliding groove, which is fitted onto the bushing. The first torsion spring is fitted inside the bushing. The self-elastic assembly hooks onto the bushing. The main tongue member has a main tongue. When the bushing is released by the self-spring assembly, the bushing rotates under the action of the first torsion spring. The bushing rotates within the slide groove to drive the main tongue to move, causing the main tongue to extend out of the lock housing.

2. The self-locking body of the pull rod structure according to claim 1, characterized in that, It also includes a clutch assembly for connecting the handle.

3. The self-locking body of the pull rod structure according to claim 2, characterized in that, The latch assembly includes a latch tongue, a first connecting rod, and a linkage part. One end of the first connecting rod is connected to the latch tongue, and the other end is connected to the linkage part. The linkage part is used for the clutch assembly to abut against it. When the clutch assembly rotates, the clutch assembly pushes the linkage part to retract the latch tongue into the lock housing.

4. The self-locking body of the pull rod structure according to claim 3, characterized in that, The tongue assembly also includes a first spring, which is sleeved on the first connecting rod.

5. A self-locking body for a pull rod structure according to claim 1, characterized in that, The self-spring assembly includes a self-spring body, a first linkage component, a second linkage component, and a second torsion spring. The middle part of the first linkage component is rotatably connected to the lock housing via a first rotating shaft. One end of the first linkage component is provided with a linkage post, and the self-spring body hooks onto the linkage post. One end of the second linkage component is connected to the first rotating shaft, and the other end hooks onto the main tongue assembly. The second torsion spring is sleeved on the first linkage component. When the door is closed, the self-elastic body releases the linkage column, and the second torsion spring causes the other end of the first linkage member to abut against the latch assembly. The latch assembly extends out of the lock housing to drive the first rotating shaft to rotate, and the rotation of the first rotating shaft causes the second linkage member to move to release the main latch assembly.

6. The self-locking body of the pull rod structure according to claim 5, characterized in that, The self-springing body includes a self-springing tongue, a second connecting rod, and a second spring. One end of the second connecting rod is connected to the self-springing tongue, and the other end is provided with a first hook. The first hook hooks onto the linkage column, and the second spring is sleeved on the second connecting rod.

7. A self-locking body for a pull rod structure according to claim 5, characterized in that, One end of the second linkage is sleeved on the first rotating shaft, and the other end is provided with a second hook. The shaft sleeve is provided with a notch, and the second hook is used to hook the notch.

8. A self-locking body for a pull rod structure according to claim 2, characterized in that, The main tongue assembly further includes a pull rod tooth and a pull rod plate, both of which are sleeved on the bushing, and the pull rod tooth engages with the clutch assembly; When the clutch assembly rotates, it drives the pull rod tooth to rotate, the pull rod tooth to rotate the bushing, and the bushing drives the main tongue to move, causing the main tongue to retract into the lock housing.

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