Monoclinal tongue lock

Abstract

The utility model discloses a single inclined tongue lock body relates to door lock technical field, including lock shell and be provided with in the inclined tongue subassembly and transmission subassembly of lock shell, transmission subassembly includes the handle of rotatable setting in lock shell and be used for connecting, the handle is equipped with the bar, the push plate is equipped with two convex stripes, the bar is located between two convex stripes, the push plate middle part rotatable connection lock shell, when rotating handle, the handle rotation makes the bar push the convex stripe, the push plate pushes one end of the bar and makes the bar rotate, the other end of the bar pulls the inclined tongue subassembly and makes the inclined tongue subassembly retract into the lock shell, the utility model no matter clockwise or counterclockwise rotating handle can retract the inclined tongue subassembly into the lock shell, need not according to the installation position of lock body and reassemble the rotating direction of handle, has simplified the installation procedure, is more convenient for assembly work.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, specifically a single-tongue lock body. Background Technology

[0002] Single-latch door locks are typically installed on interior doors such as those in bedrooms and bathrooms. Single-latch door locks have a simple structure and low manufacturing cost.

[0003] When installing a door lock, the handle's installation position must be determined according to the specific situation. Different handle positions result in different rotation directions when opening the door. For example, if the handle is installed on the left side of the door, turn the handle clockwise to open the door; if the handle is installed on the right side of the door, turn the handle clockwise to open the door. However, existing single-latch lock bodies usually only allow the handle to be turned in one direction to unlock. Therefore, if the direction of the latch is incorrect during the assembly stage, the lock body needs to be disassembled and reinstalled or replaced, making the installation process cumbersome and troublesome. Utility Model Content

[0004] This utility model discloses a single-slant tongue lock body to solve the technical problem of only being able to unlock in one direction.

[0005] To solve the above-mentioned technical problems, the present invention proposes the following optimized technical solution: A single-tongue lock body includes a lock housing and a tongue assembly and a transmission assembly disposed within the lock housing. The transmission assembly includes a dial wheel, a push plate, and a lever plate. The dial wheel is rotatably disposed within the lock housing and is used to connect to a handle. The dial wheel has a lever bar. The push plate has two protrusions. The lever bar is located between the two protrusions. The center of the lever plate is rotatably connected to the lock housing. When the handle is turned, the dial rotates, causing the lever to push the convex bar. The push plate pushes one end of the lever to rotate, and the other end of the lever pulls the latch assembly to retract the latch assembly into the lock housing.

[0006] Furthermore, there are two dials, and the two dials are located between the two protruding strips.

[0007] Furthermore, the transmission assembly also includes a round shaft, which is fixedly connected inside the lock housing. The lever plate has a rotating hole, and the lever plate is rotatably connected to the round shaft by being sleeved on the round shaft through the rotating hole.

[0008] Furthermore, the latch assembly includes a latch tongue, which is slidably disposed within the lock housing and extends out of the lock housing; the latch tongue is connected to the other end of the lever plate.

[0009] Furthermore, the other end of the lever is provided with a hook, the oblique tongue is provided with a connecting strip, the connecting strip is provided with a connecting groove, and the hook is hooked into the connecting groove.

[0010] Furthermore, the latch assembly also includes a first elastic element, which is used to reset the latch so that the latch extends out of the lock housing.

[0011] Furthermore, the tongue assembly also includes a tongue slider, a push rod, and a second elastic element. The tongue slider is slidably disposed on the tongue. The tongue has a tongue groove and a limiting point. The limiting point is disposed adjacent to the tongue groove. One end of the push rod is movably connected to the lock housing, and the other end corresponds to the tongue groove. The second elastic element is located between one end of the tongue slider and one end of the push rod. When the oblique tongue slider retracts into the lock housing, the second elastic element is squeezed and pushes one end of the push rod to rotate, while the other end of the push rod moves to the limiting point, preventing the oblique tongue from retracting into the lock housing.

[0012] Furthermore, the dial plate is provided with a boss. When the push plate pushes the dial plate to rotate, the boss pushes the other end of the push rod from the limiting point to the oblique tongue groove.

[0013] Furthermore, the lock housing includes an upper shell, a lower shell, a fixing sleeve, a guide plate, and a fixing member. A receiving cavity is formed between the upper shell and the lower shell to accommodate the latch assembly and the transmission assembly. The fixing sleeve is fitted onto the upper shell and the lower shell. The guide plate is connected to the fixing sleeve. Both the guide plate and the fixing sleeve are provided with holes for the latch assembly to pass through. The fixing member is disposed in the receiving cavity and is used for the lever to be rotatably connected thereto.

[0014] Furthermore, the lock housing also includes a guide plate, which is disposed within the receiving cavity and is used to guide the push plate during movement.

[0015] The present invention has the following advantages over the prior art: The single-tongue lock body provided by this utility model is equipped with a tongue assembly and a transmission assembly. The transmission assembly has a dial wheel with a lever and a push plate with two protrusions. The lever is positioned between the two protrusions. Rotating the handle clockwise or counterclockwise will push the two protrusions respectively, thereby pushing the push plate. The push plate pushes one end of the lever, causing the lever to rotate. The other end of the lever pulls the tongue assembly, causing the tongue assembly to retract into the lock housing. Therefore, this utility model can retract the tongue assembly into the lock housing whether the handle is rotated clockwise or counterclockwise, without needing to reassemble the rotation direction of the handle according to the installation position of the lock body, simplifying the installation process and making assembly easier. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the present invention and the lock frame.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model.

[0018] Figure 3 This is an exploded view of the structure of this utility model.

[0019] Figure 4 This is a structural schematic diagram of the oblique tongue assembly and transmission assembly of this utility model.

[0020] Figure 5 This is a top view of the tongue assembly and transmission assembly of this utility model.

[0021] Figure 6 This is a schematic diagram of the oblique tongue of this utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the dial of this utility model.

[0023] In the diagram: 100, lock housing; 110, upper housing; 120, lower housing; 130, fixing sleeve; 140, guide plate; 150, fixing component; 151, protruding shaft; 160, guide plate; 200, latch assembly; 210, latch; 211, connecting bar; 212, connecting groove; 213, latch groove; 214, limiting point; 220, latch slider; 230, push rod; 300, transmission assembly; 310, dial wheel; 311, dial bar; 320, push plate; 321, protruding bar; 322, push bar; 330, dial plate; 331, hook; 332, boss; 340, round shaft; 400, lock frame; 410, lock groove; 420, blocking part. Detailed Implementation

[0024] 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.

[0025] See Figures 1-7A single-tongue lock body includes a lock housing 100 and a tongue assembly 200 and a transmission assembly 300 disposed within the lock housing 100. The transmission assembly 300 includes a dial wheel 310, a push plate 320, and a lever 330. The dial wheel 310 is rotatably disposed within the lock housing 100 and is used to connect to a handle. The dial wheel 310 has two levers 311. The push plate 320 has two protrusions 321. The levers 311 are located between the two protrusions 321. The lever 330 is rotatably connected to the lock housing 100 at its center.

[0026] Lock opening method: When the handle is turned clockwise, the dial wheel 310 rotates, causing the lever 311 to push the protrusion 321 located below the lever 311. Since the push plate 320 conforms to the internal structure of the lock housing 100, the push plate 320 will move along the length of the lock housing 100. Therefore, when the push plate 320 is pushed by the dial wheel 310, it will move towards the latch assembly 200. The push plate 320 moves towards the latch assembly 200 and pushes one end of the lever 330. Since the middle part of the lever 330 is rotatably connected to the lock housing 100, when one end of the lever 330 is pushed, the lever 330 rotates, thereby causing the other end of the lever 311 to rotate. Pulling the latch assembly 200 causes it to retract into the lock housing 100, thus opening the door. When the handle is turned counterclockwise, the dial wheel 310 rotates, causing the lever 311 to push the protrusion 321 located on the lever 311. Therefore, when the push plate 320 is pushed by the dial wheel 310, it moves towards the latch assembly 200. The push plate 320 moves towards the latch assembly 200 and pushes one end of the lever 330. When one end of the lever 330 is pushed, the lever 330 rotates, thereby causing the other end of the lever 311 to pull the latch assembly 200, causing it to retract into the lock housing 100, thus opening the door.

[0027] Additionally, the push plate 320 is provided with a push bar 322, the position of which corresponds to one end of the dial plate 330; when the push plate 320 moves in the direction of the dial plate 330, the push bar 322 can push one end of the dial plate 330.

[0028] In this embodiment, there are two levers 311, which are located between the two protrusions 321. Specifically, the two levers 311 are close to the two protrusions 321 respectively. Therefore, when the handle is turned clockwise, the lower lever 311 pushes the lower protrusion 321, and when the handle is turned counterclockwise, the upper lever 311 pushes the lower protrusion 321.

[0029] In this embodiment, the transmission assembly 300 further includes a round shaft 340, which is fixedly connected within the lock housing 100. The lever 330 has a rotating hole, and the lever 330 is rotatably connected to the round shaft 340 by being fitted through the rotating hole, thereby enabling the lever 330 to be rotatably mounted within the lock housing 100. It should be noted that the diameter of the rotating hole is adapted to the diameter of the round shaft 340, ensuring that the rotating hole fits snugly into the round shaft 340 without being too loose.

[0030] In this embodiment, the latch assembly 200 includes a latch 210, which is slidably disposed within the lock housing 100 and extends out of the lock housing 100; the latch 210 is connected to the other end of the lever 330, and when the lever 330 rotates, the lever 330 pulls the latch 210 to retract into the lock housing 100.

[0031] In this embodiment, the other end of the lever 330 is provided with a hook 331, the oblique tongue 210 is provided with a connecting strip 211, the connecting strip 211 is provided with a connecting groove 212, and the hook 331 hooks the connecting groove 212. Therefore, when the lever 330 rotates, the lever 330 can pull the oblique tongue 210.

[0032] In this embodiment, the latch assembly 200 further includes a first elastic element, which is used to reset the latch 210 so that the latch 210 extends out of the lock housing 100. Specifically, the first elastic element is a spring located between the latch 210 and the lock housing 100. When the latch 210 retracts into the lock housing 100, the spring is compressed. When the door is opened, the door frame no longer compresses the latch 210, and the spring's rebound force causes the latch 210 to extend out of the lock housing 100.

[0033] In this embodiment, the latch assembly 200 further includes a latch slider 220, a push rod 230, and a second elastic element. The latch slider 220 is slidably disposed on the latch 210. The latch 210 is provided with a latch groove 213 and a limiting point 214. The limiting point 214 is disposed adjacent to the latch groove 213. One end of the push rod 230 is movably connected to the lock housing 100, and the other end corresponds to the latch groove 213. The second elastic element is located between one end of the latch slider 220 and the push rod 230. The latch slider 220 is used to prevent the latch 210 from being pried open and inserted into the lock housing 100 when the door is closed, thus playing an anti-theft role.

[0034] The anti-theft mechanism of the latch slider 220: The lock frame 400 installed on the door frame has a lock groove 410, and the top of the lock groove 410 has a blocking part 420. When the door is closed, the blocking part 420 will block the latch slider 220. When the door is closed, the latch 210 extends into the lock groove 410. Because the blocking part 420 blocks the latch slider 220, the latch slider 220 will be squeezed by the blocking part 420 and retracted into the lock housing 100. The second elastic element is compressed, and the compression of the second elastic element pushes one end of the push rod 230. Under the push of the second elastic element, the push rod 230 rotates at one end, and the other end of the push rod 230 moves to the limiting point 214. That is, the push rod 230 acts to hold the tongue 210 at the limiting point 214. Therefore, when someone pries it, the tongue 210 is held by the push rod 230 and cannot retract into the lock case 100, thus achieving the anti-theft function.

[0035] To further explain, the fixing member 150 of the lock housing 100 is provided with a protruding shaft 151. One end of the push rod 230 is loosely fitted onto the protruding shaft 151 and is placed at an angle. At this time, the other end of the push rod 230 is located in the oblique tongue groove 213. The second elastic member is a spring. One end of the spring is fitted onto the oblique tongue slider 220 and the other end is fitted onto the protruding shaft 151. When the oblique tongue slider 220 retracts into the lock housing 100 to push the second spring member, the second elastic member pushes one end of the push rod 230. The second elastic member rotates at one end so that its other end moves to the limit point 214.

[0036] In this embodiment, the lever plate 330 is provided with a boss 332. When the push plate 320 pushes the lever plate 330 to rotate, the boss 332 moves and pushes the push rod 230, pushing the other end of the push rod 230 from the limiting point 214 to the oblique tongue groove 213, completing the reset of the push rod 230, so that the oblique tongue 210 is not blocked by the push rod 230 and can retract into the lock case 100.

[0037] In this embodiment, the lock housing 100 includes an upper housing 110, a lower housing 120, a fixing sleeve 130, a guide plate 140, and a fixing member 150. The upper housing 110 and the lower housing 120 are detachably connected by a locking mechanism. A receiving cavity is formed between the upper housing 110 and the lower housing 120 to accommodate the latch assembly 200 and the transmission assembly 300. The fixing sleeve 130 is fitted onto the upper housing 110 and the lower housing 120, and also serves to connect the upper housing 110 and the lower housing 120. The guide plate 140 is connected to the fixing sleeve 130. Both the guide plate 140 and the fixing sleeve 130 are provided with holes for the latch assembly 200 to pass through. The fixing member 150 is disposed in the receiving cavity. The fixing member 150 is used for the rotatable connection of the lever 330. Specifically, a round shaft 340 is fixedly connected to the fixing member 150, and the lever 330 is rotatably fitted onto the round shaft 340.

[0038] In this embodiment, the lock housing 100 further includes a guide plate 160, which is disposed within the receiving cavity and serves to guide the push plate 320 during movement. The guide plate 160 has a groove on its side that matches the push plate 320. When the push plate 320 moves, it slides within the groove of the guide plate 160, thus providing a guiding function for the push plate 320.

[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 single-oblique tongue lock body, characterized in that, The lock includes a lock housing and a latch assembly and a transmission assembly disposed within the lock housing. The transmission assembly includes a dial wheel, a push plate, and a lever plate. The dial wheel is rotatably disposed within the lock housing and is used to connect to a handle. The dial wheel has a lever bar. The push plate has two protrusions. The lever bar is located between the two protrusions. The lever plate is rotatably connected to the lock housing at its center. When the handle is turned, the dial rotates, causing the lever to push the convex bar. The push plate pushes one end of the lever to rotate, and the other end of the lever pulls the latch assembly to retract the latch assembly into the lock housing.

2. A single oblique tongue lock body according to claim 1, characterized in that, The number of the dial strips is two, and the two dial strips are located between the two convex strips.

3. A single oblique tongue lock body according to claim 1, characterized in that, The transmission assembly also includes a round shaft, which is fixedly connected inside the lock housing. The lever plate has a rotating hole, and the lever plate is rotatably connected to the round shaft by being sleeved on the round shaft through the rotating hole.

4. A single oblique tongue lock body according to claim 1, characterized in that, The latch assembly includes a latch tongue, which is slidably disposed within the lock housing and extends out of the lock housing; the latch tongue is connected to the other end of the lever plate.

5. A single oblique tongue lock body according to claim 4, characterized in that, The other end of the lever is provided with a hook, the oblique tongue is provided with a connecting strip, the connecting strip is provided with a connecting groove, and the hook is hooked into the connecting groove.

6. A single oblique tongue lock body according to claim 4, characterized in that, The latch assembly further includes a first elastic element, which is used to reset the latch so that the latch extends out of the lock housing.

7. A single oblique tongue lock body according to claim 4, characterized in that, The latch assembly further includes a latch slider, a push rod, and a second elastic element. The latch slider is slidably disposed on the latch. The latch has a latch groove and a limiting point. The limiting point is disposed adjacent to the latch groove. One end of the push rod is movably connected to the lock housing, and the other end corresponds to the latch groove. The second elastic element is located between one end of the latch slider and one end of the push rod. When the oblique tongue slider retracts into the lock housing, the second elastic element is squeezed and pushes one end of the push rod to rotate, while the other end of the push rod moves to the limiting point, preventing the oblique tongue from retracting into the lock housing.

8. A single oblique tongue lock body according to claim 7, characterized in that, The dial plate is provided with a boss. When the push plate pushes the dial plate to rotate, the boss pushes the other end of the push rod from the limiting point to the oblique tongue groove.

9. A single oblique tongue lock body according to claim 1, characterized in that, The lock housing includes an upper shell, a lower shell, a fixing sleeve, a guide plate, and a fixing member. A receiving cavity is formed between the upper shell and the lower shell to accommodate the latch assembly and the transmission assembly. The fixing sleeve is fitted onto the upper shell and the lower shell. The guide plate is connected to the fixing sleeve. Both the guide plate and the fixing sleeve are provided with holes for the latch assembly to pass through. The fixing member is disposed in the receiving cavity and is used for the rotatable connection of the lever plate thereon.

10. A single oblique tongue lock body according to claim 9, characterized in that, The lock housing also includes a guide plate, which is disposed within the receiving cavity and is used to guide the push plate as it moves.

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