Rotary telescopic sliding door lock

Abstract

The utility model relates to a kind of rotating telescopic sliding door lock, including the password lock unit and mechanical lock unit in shell;The password lock unit can lock the lock shell of mechanical lock unit, to make mechanical lock unit need to be unlocked by key;The mechanical lock unit includes the lock cylinder in lock shell, the tail of the lock cylinder is connected with the lock bolt of external movable door and is locked;A transmission component is arranged between the lock cylinder and the lock bolt, and a push-out guide surface is arranged on the transmission component, for converting the rotary motion of the lock cylinder into the push-out linear motion of the lock bolt.The utility model has the beneficial effects that: by the helical push-out guide surface on transmission component, the rotary motion of the lock cylinder is directly converted into the linear motion of the lock bolt, replacing the traditional complex multi-component transmission structure, reducing the number of components and mechanical friction, reducing the probability of jamming in transmission process, improving the durability and stability of lock.

Description

Technical Field

[0001] This utility model relates to the technical field of locks, and in particular to a rotary telescopic sliding door lock. Background Technology

[0002] With urbanization and the diversification of home design and the increasing demand for more refined interior layouts, sliding doors are now widely used in many areas of home renovation, such as kitchens, bathrooms, and room partitions. Consequently, the demand for sliding door locks is growing. As a result, the number of sliding door locks on the market is increasing, and their applications are becoming more widespread.

[0003] There are generally two types of sliding doors: one is the double-leaf type, where the two door panels move in a straight line and are locked when the corresponding end faces of the two door panels contact each other; the other is the staggered type, where the two door panels are staggered front and back, with the lock on the front door panel and the lock groove on the rear door panel. When the rear door panel moves behind the front door panel, and the lock groove and the lock tongue align, the lock tongue can be engaged into the lock groove to lock both door panels.

[0004] For staggered door panels, the bolt usually needs to extend behind the front door panel to lock the rear door panel. Mechanical locks unlock by rotation, requiring a transmission structure to convert the rotational motion into linear motion. Existing transmission structures have many components, are complex, and are prone to jamming, resulting in poor performance. Utility Model Content

[0005] In order to solve the above-mentioned problems in the prior art, this utility model provides a rotating telescopic sliding door lock.

[0006] The above-mentioned problems of this utility model are solved by the following technical solution:

[0007] A rotary telescopic sliding door lock includes a combination lock unit and a mechanical lock unit disposed within a housing; the combination lock unit can lock the lock housing of the mechanical lock unit, so that the mechanical lock unit requires a key to unlock;

[0008] The mechanical lock unit includes a lock cylinder located inside the lock housing, and the tail of the lock cylinder is connected to a lock tongue to lock the external movable door.

[0009] A transmission component is provided between the lock cylinder and the bolt, and the transmission component is provided with an ejection guide surface to convert the rotational motion of the lock cylinder into a linear motion of ejecting the bolt.

[0010] A further feature of the above technical solution is that the ejection guide surface is a helical surface arranged around the rotation axis.

[0011] A further provision of the above technical solution is that a transmission sleeve extends from the locking tongue toward the transmission component, and the transmission sleeve is provided on a driven surface that cooperates with the push-out guide surface.

[0012] A further feature of the above technical solution is that the mechanical lock also includes a guide sleeve, and the guide sleeve is provided with a guide hole that can accommodate the protrusion of the lock tongue;

[0013] The guide sleeve is provided with a receiving groove that can accommodate the movement of the transmission sleeve. A limiting structure is provided between the receiving groove and the transmission sleeve so that the transmission sleeve can only move linearly along the direction of the rotation axis.

[0014] By adopting the above technical solution, the limiting structure of the transmission sleeve and guide sleeve of the locking tongue restricts the circumferential movement of the transmission sleeve, allowing it to move linearly along the rotation axis only, ensuring the precise extension and retraction path of the locking tongue, avoiding deviation or jamming, and improving the reliability of locking and unlocking.

[0015] A further provision of the above technical solution is that a top support is provided in the receiving groove, and the top support abuts against the transmission sleeve, so that the transmission sleeve has a tendency to move toward the transmission component.

[0016] By adopting the above technical solution, the top holding member in the guide sleeve receiving groove always pushes the transmission sleeve toward the transmission component. When the transmission component is reset, the top holding member can automatically retract the lock tongue into the lock without additional operation, simplifying the user's operation process.

[0017] A further provision of the above technical solution is that a limiting ring is protruding on the outer periphery of the transmission component, and a limiting groove that cooperates with the limiting ring is provided on the outer shell.

[0018] By adopting the above technical solution, the limiting ring of the transmission component cooperates with the limiting groove of the outer shell to prevent the transmission component from moving linearly with the lock tongue and ensure that it only rotates with the lock cylinder; the limiting head at the tail of the lock cylinder is connected to the limiting connection of the transmission component to prevent the transmission component from spinning or slipping, and to ensure the efficient transmission of rotational motion to linear motion.

[0019] A further provision of the above technical solution is that a limiting head is provided at the tail of the lock cylinder, and the limiting head is limitedly connected to the transmission component.

[0020] A further provision of the above technical solution is that the combination lock unit includes a code-finding component, wherein the code-finding rod of the code-finding component can extend into the housing under the action of external force to find the code of the combination lock.

[0021] A further feature of the above technical solution is that the circumferential surface of the character wheel on the combination lock unit is provided with a code-finding groove that can accommodate the head of the code-finding rod extending into it.

[0022] A further provision of the above technical solution is that the code-finding assembly includes a code-finding box, which limits the code-finding rod to the back of the housing; the code-finding box is provided with a return spring, which drives the code-finding rod toward the side away from the housing.

[0023] By adopting the above technical solution, the code-finding component of the combination lock unit, through the cooperation of the code-finding lever and the code-finding groove of the character wheel, makes it convenient for users to quickly locate the correct code position when they forget the code; the design of the code-finding box and the reset spring ensures that the code-finding lever automatically resets after use, without affecting the normal operation of the combination lock, thus improving the practicality and user experience of the combination lock.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: by using the spiral push-out guide surface on the transmission component, the rotational motion of the lock cylinder is directly converted into the linear motion of the lock tongue, replacing the traditional complex multi-part transmission structure, reducing the number of parts and mechanical friction, reducing the probability of jamming during transmission, and improving the durability and stability of the lock. Attached Figure Description

[0025] Figure 1 This is an exploded structural diagram of the present invention.

[0026] Figure 2 This is an exploded view of the mechanical lock unit.

[0027] Figure 3 This is an exploded structural diagram of the transmission sleeve and guide sleeve.

[0028] Figure 4 This is a schematic diagram showing the position and structure of the transmission sleeve and locking tongue in the unlocked state.

[0029] Figure 5 This is a schematic diagram showing the position and structure of the transmission sleeve and locking tongue in the locked state.

[0030] Figure 6 This is a schematic diagram showing the exploded structure of the combination lock unit and the code-finding component.

[0031] Figure 7 This is a cross-sectional structural diagram of the combination lock unit and the code-finding component.

[0032] The attached image is labeled: 100, outer casing;

[0033] 200. Mechanical lock unit; 210. Lock cylinder; 220. Lock tongue; 230. Lock housing; 221. Transmission sleeve; 221.1. Driven surface; 240. Guide sleeve; 241. Guide hole; 242. Receiving groove; 242.1. Limiting groove; 221.2. Limiting protrusion; 250. Supporting component;

[0034] 300. Combination lock unit; 310. Dial wheel; 320. Lock bar;

[0035] 400. Transmission component; 410. Push-out guide surface; 420. Limiting ring;

[0036] 500. Code finding component; 510. Code finding lever; 520. Code finding box; 530. Return spring;

[0037] 1. Key; a. Key slot. Detailed Implementation

[0038] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0039] like Figure 1-7 As shown in the figure, this embodiment discloses a rotating telescopic sliding door lock.

[0040] A rotating telescopic sliding door lock includes a combination lock unit 300 and a mechanical lock unit 200 disposed within a housing 100; the combination lock unit 300 can lock the lock housing 230 of the mechanical lock unit 200, so that the mechanical lock unit 200 needs to be unlocked by a key 1.

[0041] The mechanical lock unit 200 includes a lock cylinder 210 disposed in a lock housing 230, and the tail of the lock cylinder 210 is connected to a lock tongue 220 to lock with an external movable door.

[0042] A transmission component 400 is provided between the lock cylinder 210 and the bolt 220. The transmission component 400 is provided with an ejection guide surface 410, which is used to convert the rotational motion of the lock cylinder 210 into a linear motion for ejecting the bolt 220.

[0043] The above is the basic scheme of this embodiment.

[0044] Specific reference Figure 1 As shown, the mechanical lock unit 200 and the combination lock unit 300 in this embodiment are conventional mechanical lock and combination lock structures in the prior art. The mechanical lock unit 200 includes a lock cylinder 210 and a lock shell 230. The lock cylinder 210 and the lock shell 230 are locked together by a blade. After the key 1 is inserted, the blade retracts into the lock cylinder 210, thereby unlocking the lock cylinder 210 and the lock shell 230. Turning the key 1 can drive the lock cylinder 210 to rotate, thereby driving the bolt 220 at the tail of the lock cylinder 210. When the lock cylinder 210 and the lock shell 230 are in the locked state, turning the lock shell 230 can rotate the lock shell 230 and the lock cylinder 210 as a whole, thereby driving the bolt 220 at the tail of the lock cylinder 210.

[0045] In this embodiment, the combination lock unit 300 is a combination lock with a dial 310 structure. When the dial 310 is moved to the correct position, the locking rod 320 passing through the dial 310 can be unlocked. At this time, when the lock case 230 is rotated, the lock case 230 can push out the locking rod 320. When the dial 310 is in the wrong combination position, the locking rod 320 is in the locked state. At this time, the head of the locking rod 320 extends into the lock groove of the lock case 230. When the lock case 230 is rotated, the lock case 230 cannot be rotated due to the blocking effect of the locking rod 320.

[0046] The specific structures of the mechanical lock unit 200 and the combination lock unit 300 are consistent with the existing technology and will not be described in detail here.

[0047] In this embodiment, after the mechanical lock unit 200 is unlocked by key 1 or by turning the dial 310, the lock cylinder 210 is rotated. The lock cylinder 210 drives the transmission component 400 to drive. The push-out guide surface 410 on the transmission component 400 guides and drives the bolt 220, causing the bolt 220 to move along the rotation axis of the lock cylinder 210, extending or retracting outward to the rear of the lock cylinder 210, thereby locking or unlocking the movable door with the bolt 220.

[0048] Specifically, in this embodiment, the ejection guide surface 410 is a helical surface arranged around the rotation axis.

[0049] Reference Figure 2 As shown, when the lock cylinder 210 rotates, it drives the ejection guide surface 410 to rotate. Since the ejection guide surface 410 is set as a spiral surface, the spiral surface also rotates synchronously during the rotation. During this process, the lock tongue 220 does not rotate. Therefore, for the fixed position on the lock tongue 220, the contact point on the spiral surface also rotates, thereby driving the lock tongue 220 in a linear direction.

[0050] When the latch 220 unlocks the movable door panel, the latch 220 retracts into the mechanical lock unit 200. In order to ensure the retraction of the latch 220, in this embodiment, the latch 220 is provided with a driven surface 221.1 that cooperates with the push-out guide surface 410.

[0051] Specifically, refer to Figure 3 As shown, a transmission sleeve 221 extends from the locking tongue 220 toward the transmission component 400, and the transmission sleeve 221 is provided with a driven surface 221.1 that cooperates with the push-out guide surface 410.

[0052] When the latch 220 retracts into the mechanical lock unit 200, the guide surface 410 and the driven surface 221.1 engage to form a complete circumferential outer shape structure, such as... Figure 4 As shown.

[0053] For one of the fixed points on the driven surface 221.1, the moving point position on the guide surface 410 that contacts it is pushed out. During the rotation of the lock cylinder 210, the moving point position gradually moves backward along the spiral surface, thereby pushing out the fixed point and thus pushing out the bolt 220. Figure 5 As shown.

[0054] In this embodiment, in order to limit the bolt 220, the mechanical lock further includes a guide sleeve 240, which has a guide hole 241 that can accommodate the bolt 220 extending out.

[0055] The guide sleeve 240 is provided with a receiving groove 242 that can accommodate the movement of the transmission sleeve 221. A limiting structure is provided between the receiving groove 242 and the transmission sleeve 221 so that the transmission sleeve 221 can only move linearly along the direction of the rotation axis.

[0056] Specific reference Figure 3 As shown, in this embodiment, the guide sleeve 240 has a limiting groove 242.1 on the groove wall of the receiving groove 242, and the transmission sleeve 221 has a limiting protrusion 221.2 that cooperates with the limiting groove 242.1 on the outer wall. The limiting protrusion 221.2 and the limiting groove 242.1 cooperate to limit the circumferential movement of the transmission sleeve 221, so that the transmission sleeve 221 can only move radially.

[0057] Furthermore, the transmission sleeve 221 moves radially relative to the guide sleeve 240, therefore, the radial length of the limiting groove 242.1 is greater than the radial length of the limiting protrusion 221.2.

[0058] When unlocking the door panel, the transmission component 400 is reset by rotating the lock cylinder 210. At this time, the lock tongue 220 needs to be driven to move toward the lock cylinder 210. In this embodiment, the receiving groove 242 is provided with a top holding member 250. The top holding member 250 abuts against the transmission sleeve 221, so that the transmission sleeve 221 has a tendency to move toward the transmission component 400.

[0059] After the transmission part is reset, the guide surface 410 is pushed out and separated from the driven surface 221.1 on the transmission sleeve 221. At this time, the transmission sleeve 221 is not held by the transmission component 400, but is held by the holding member 250 on the other side, thereby driving the transmission sleeve 221 to move toward the transmission component 400, and the locking tongue 220 retracts into the mechanical lock.

[0060] Preferably, in this embodiment, the top support 250 is a spring sleeved on the outside of the locking tongue 220.

[0061] In this embodiment, to prevent the transmission component 400 from moving in a straight line along with the locking tongue 220 during transmission, a limiting ring 420 is provided on the outer periphery of the transmission component 400, and a limiting groove 242.1 that cooperates with the limiting ring 420 is provided on the outer shell 100.

[0062] In addition, in this embodiment, the tail of the lock cylinder 210 is provided with a limiting head, which is limitedly connected to the transmission component 400.

[0063] In this embodiment, the limiting head is a non-circular convex part.

[0064] In this embodiment, the combination lock unit 300 includes a code-finding component 500. The code-finding rod 510 of the code-finding component 500 can extend into the housing 100 under the action of external force to find the combination lock code.

[0065] Specifically, the character wheel 310 on the combination lock unit 300 has a code-finding groove a on its circumference that can accommodate the head of the code-finding rod 510 extending into it.

[0066] Specific reference Figure 6 As shown, the head of the code-finding lever 510 extends into the housing 100 and separates from the dial wheel 310 of the combination lock unit 300. When code finding is required, press the tail of the code-finding lever 510 to drive the head of the code-finding lever 510 toward the dial wheel 310. The head of the code-finding lever 510 contacts the surface of the dial wheel 310. At this time, rotate the dial wheel 310. When it is rotated to the correct code position, the position of the code-finding slot a corresponds to the position of the code-finding lever 510. The code-finding lever 510 can be placed into the code-finding slot a, that is, the correct code is found.

[0067] In addition, in this embodiment, the code finding component 500 includes a code finding box 520, which limits the code finding rod 510 to the back of the housing 100; the code finding box 520 is provided with a reset spring 530, which drives the code finding rod 510 toward the side away from the housing 100.

[0068] Specific reference Figure 7 As shown, the code-finding box 520 is provided with a receiving chamber, the middle part of the code-finding rod 510 is located in the receiving chamber, and an abutment part is provided in the middle part of the code-finding rod 510. The return spring 530 is sleeved on the code-finding rod 510, and both ends and the abutment part abut against the inner wall of the code-finding box 520, so that the code-finding rod 510 moves toward the side away from the character wheel 310.

[0069] After the code search is completed, the external force is removed from the code search lever 510. Under the action of the return spring 530, the code search lever 510 moves away from the number wheel 310, allowing the combination lock to function normally.

[0070] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rotary telescopic sliding door lock, comprising a combination lock unit (300) and a mechanical lock unit (200) disposed within a housing (100); the combination lock unit (300) is capable of locking the lock housing (230) of the mechanical lock unit (200) so that the mechanical lock unit (200) requires a key (1) to unlock; Its features are: The mechanical lock unit (200) includes a lock cylinder (210) disposed in a lock housing (230), and the tail of the lock cylinder (210) is connected to a lock tongue (220) to lock with an external movable door; A transmission component (400) is provided between the lock cylinder (210) and the lock tongue (220). The transmission component (400) is provided with an ejection guide surface (410) for converting the rotational motion of the lock cylinder (210) into a linear motion for ejecting the lock tongue (220).

2. The rotary telescopic sliding door lock according to claim 1, characterized in that: The ejection guide surface (410) is a helical surface arranged around the rotation axis.

3. The rotary telescopic sliding door lock according to claim 1, characterized in that: A transmission sleeve (221) is provided on the locking tongue (220) extending toward the transmission component (400), and the transmission sleeve (221) is provided on the driven surface (221.1) that cooperates with the push-out guide surface (410).

4. The rotary telescopic sliding door lock according to claim 3, characterized in that: The mechanical lock also includes a guide sleeve (240), which has a guide hole (241) that can accommodate the protrusion of the bolt (220); The guide sleeve (240) is provided with a receiving groove (242) that can accommodate the movement of the transmission sleeve (221). A limiting structure is provided between the receiving groove (242) and the transmission sleeve (221) so that the transmission sleeve (221) can only move linearly along the direction of the rotation axis.

5. The rotary telescopic sliding door lock according to claim 4, characterized in that: The receiving groove (242) is provided with a top support (250), which abuts against the transmission sleeve (221), causing the transmission sleeve (221) to have a tendency to move toward the transmission component (400).

6. The rotary telescopic sliding door lock according to claim 1, characterized in that: The transmission component (400) has a protruding limiting ring (420) on its outer periphery, and the outer shell (100) has a limiting groove (242.1) that cooperates with the limiting ring (420).

7. The rotary telescopic sliding door lock according to claim 1, characterized in that: The lock cylinder (210) is provided with a limiting head at its tail, and the limiting head is connected to the transmission component (400) for limiting.

8. The rotary telescopic sliding door lock according to claim 1, characterized in that: The combination lock unit (300) includes a code-finding component (500), and the code-finding rod (510) of the code-finding component (500) can extend into the housing (100) under the action of external force to find the code of the combination lock.

9. The rotary telescopic sliding door lock according to claim 8, characterized in that: The circumference of the dial wheel (310) on the combination lock unit (300) is provided with a code-finding groove (a) that can accommodate the head of the code-finding rod (510) to extend into.

10. The rotary telescopic sliding door lock according to claim 8 or 9, characterized in that: The code finding assembly (500) includes a code finding box (520), which limits the code finding rod (510) to the back of the housing (100); the code finding box (520) is provided with a return spring (530), which drives the code finding rod (510) toward the side away from the housing (100).

Images