Telescopic cabin door lock

Abstract

The utility model relates to the technical field of cabin door locks, and discloses a telescopic cabin door lock which comprises a main body, a middle shaft is movably sleeved with the main body, and the middle shaft is sequentially provided with a plastic gasket, a first rubber ring, a second nylon lining, a first spring and a first nylon lining in a penetrating mode from top to bottom in the main body. A U-shaped groove is formed in the bottom of the main body, the main body is connected with the middle shaft through matching of the U-shaped groove and the first knurled pin, and the middle shaft is movably connected with the main body through the second spring and the steel ball. According to the cabin door lock, the handle, the middle shaft, the first assembly gasket and the cross cup head screw are matched, the first assembly gasket is connected to the outer portion of the main body in a sleeved mode, and therefore the cabin door lock can be suitable for cabin doors of different thicknesses by controlling the number of the first assembly gasket to be increased or decreased; and the problem that the cabin door lock is limited by the thickness of the cabin door during installation is effectively solved, so that the applicable range of the cabin door lock is expanded, and the practicability of the cabin door lock is improved.

Description

Technical Field

[0001] This utility model relates to the field of hatch lock technology, specifically a telescopic hatch lock. Background Technology

[0002] The hatch lock is a lock body fixed to the hatch, and the hatch is opened or closed by operating the hatch lock.

[0003] However, existing hatch door locks need to be installed according to the actual thickness of the hatch. Different thicknesses of hatch doors require custom-made hatch door locks, which leads to certain limitations in practical applications. Furthermore, hatch door locks require operators to operate the handle during operation. To facilitate operation, the handle is installed on the outside of the hatch door lock. This makes the handle protruding from the outside of the hatch door lock easy for operators to accidentally bump into, and the protruding handle may even be damaged by collisions with external objects, thus affecting the service life of the hatch door lock. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a telescopic hatch lock, which has the advantages of being able to use clamps of different thicknesses, expanding the applicability of the hatch lock, and facilitating the concealment of the handle, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a telescopic hatch lock, comprising a main body, with a central shaft movably sleeved inside the main body. The central shaft, from top to bottom, is provided with a plastic washer, a first rubber ring, a second nylon bushing, a first spring, and another second nylon bushing. A U-shaped groove is formed at the bottom of the main body. The main body is connected to the central shaft through the U-shaped groove and a first knurled pin. The central shaft is movably connected to the main body through a second spring and a steel ball. A second knurled pin is movably sleeved on the outer wall of the upper end of the central shaft, and the second knurled pin is located away from the central shaft. A handle is fixedly sleeved on the outer wall of one end of the shaft. The outer wall of the main body is fitted with a No. 1 assembly washer and a No. 2 assembly washer from top to bottom. The No. 1 assembly washer and the No. 2 assembly washer are fixedly connected by a flat washer, a No. 2 spring washer and a cross-head screw. The lower end of the central shaft extends to the bottom of the main body. The lower end of the central shaft passes through a nut and a No. 1 spring washer from top to bottom and then exits from the inside of the cast nut. A Z-shaped handle or a straight handle is sleeved on the outer wall of the central shaft, and the Z-shaped handle and the straight handle are installed between the nut and the No. 1 spring washer.

[0006] Preferably, the outer wall at the upper end of the main body is provided with a slot, and a second rubber ring is fitted inside the slot, the second rubber ring being located above the first assembly pad.

[0007] Preferably, a groove is formed on the outer wall of the upper end of the central shaft, and the inner wall of the groove is fixedly connected to the inner end of the second spring. The end of the second spring away from the groove on the central shaft is fixedly connected to the outer wall of the steel ball.

[0008] Preferably, the inner wall of the first spring is sleeved with the outer wall of the central shaft, the outer wall of the first spring is sleeved with the inner wall of the main body, the upper end of the first spring is fixedly connected to the second nylon bushing, and the end of the first spring away from the second nylon bushing is fixedly connected to the first nylon bushing.

[0009] Preferably, the inner wall of the cast nut is threaded, and the inner wall of the cast nut is threadedly connected to the outer wall of the lower end of the central shaft.

[0010] Preferably, the outer wall of the cross-head screw is threadedly connected to the inner wall of the second spring washer, and the outer wall of the cross-head screw is movably connected to the inner wall of the flat washer. The flat washer is placed between the second assembly washer and the second spring washer. The cross-head screw passes through the interior of the second spring washer, the flat washer, and the second assembly washer from bottom to top, and then connects to the first assembly washer.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model utilizes the cooperation between the handle, central shaft, No. 1 assembly washer, and cross-head screw, and the setting of the No. 1 assembly washer being fitted onto the outside of the main body, so that the hatch lock can be controlled by adding or removing the No. 1 assembly washer to achieve the effect of being suitable for hatches of different thicknesses. This effectively solves the limitation of hatch lock installation by hatch thickness, thereby expanding the applicability of the hatch lock and improving its practicality.

[0013] 2. This utility model achieves the connection between the handle, the main body, the knurled pin, and the central shaft through the cooperation between the handle, the main body, and the central shaft. The knurled pin effectively solves the problem of the handle being accidentally bumped due to its protruding shape. The handle is retracted into the main body when not in use and removed from the main body when in use, making it easy to store the handle when using the door lock and thus preventing damage caused by accidental bumping of the handle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the present invention in its non-working state;

[0016] Figure 3 This is a schematic diagram of the working state of this utility model;

[0017] Figure 4This is an exploded view of the No. 1 assembly gasket of this utility model;

[0018] Figure 5 This is an exploded view of the No. 2 spring of this utility model.

[0019] In the diagram: 1. Main body; 2. Central shaft; 3. Handle; 4. Plastic washer; 5. Rubber ring No. 1; 6. Nylon bushing No. 1; 7. Knurled pin No. 1; 8. Spring No. 1; 9. Nylon bushing No. 2; 10. Nut; 11. Cast nut; 12. Spring No. 2; 13. Steel ball; 14. Knurled pin No. 2; 15. Rubber ring No. 2; 16. Spring washer No. 1; 17. Spring washer No. 2; 18. Phillips head screw; 19. Flat washer; 20. Z-shaped handle; 21. Straight handle; 22. Assembly washer No. 1; 23. Assembly washer No. 2. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 , Figure 5 and Figure 3A telescopic hatch lock includes a main body 1. A central shaft 2 is movably fitted inside the main body 1. The central shaft 2, from top to bottom, is fitted with a plastic washer 4, a first rubber ring 5, a second nylon bushing 9, a first spring 8, and a first nylon bushing 6. The second nylon bushing 9 and the first nylon bushing 6 secure the first spring 8. The first rubber ring 5 is an O-ring used to reduce noise. A U-shaped groove is formed at the bottom of the main body 1. The main body 1 is connected to the central shaft 2 through the U-shaped groove and the first knurled pin 7. When the U-shaped groove and the first knurled pin 7 are separated, the handle 3 is open; when the U-shaped groove and the first knurled pin 7 are connected, the handle 3 is closed. The central shaft 2 is movably connected to the main body 1 through a second spring 12 and a steel ball 13. A second knurled pin 14 is movably fitted onto the outer wall of the upper end of shaft 2. A handle 3 is fixedly fitted onto the outer wall of the end of the second knurled pin 14 away from the central shaft 2. A first assembly washer 22 and a second assembly washer 23 are fitted onto the outer wall of the main body 1 from top to bottom. The first assembly washer 22 and the second assembly washer 23 are fixedly connected by a flat washer 19, a second spring washer 17 and a cross-head screw 18. The lower end of the central shaft 2 extends to the bottom of the main body 1. The lower end of the central shaft 2 passes through the nut 10 and the first spring washer 16 from top to bottom and then exits from the inside of the cast nut 11. A Z-shaped handle 20 or a straight handle 21 is fitted onto the outer wall of the central shaft 2, and the Z-shaped handle 20 and the straight handle 21 are installed between the nut 10 and the first spring washer 16.

[0022] The outer wall at the upper end of the main body 1 is provided with a slot, and a second rubber ring 15 is fitted inside the slot. The second rubber ring 15 is located above the first assembly pad 22. The slot on the main body 1 provides space for the installation of the second rubber ring 15.

[0023] Please see Figure 2 and Figure 4 The outer wall of the upper end of the central shaft 2 is provided with a groove, and the inner wall of the groove is fixedly connected to the inner end of the second spring 12. The second spring 12 connects the central shaft 2 and the steel ball 13. The end of the second spring 12 away from the groove on the central shaft 2 is fixedly connected to the outer wall of the steel ball 13.

[0024] The inner wall of spring 8 is sleeved with the outer wall of the central shaft 2, the outer wall of spring 8 is sleeved with the inner wall of the main body 1, the upper end of spring 8 is fixedly connected with nylon bushing 9, and the end of spring 8 away from nylon bushing 9 is fixedly connected with nylon bushing 6.

[0025] The inner wall of the cast nut 11 is threaded, and the inner wall of the cast nut 11 is threadedly connected to the outer wall of the lower end of the central shaft 2. The threaded connection not only facilitates the connection between the cast nut 11 and the central shaft 2, but also facilitates the removal of the cast nut 11 from the central shaft 2.

[0026] The outer wall of the cross-head screw 18 is threadedly connected to the inner wall of the second spring washer 17. The outer wall of the cross-head screw 18 is movably connected to the inner wall of the flat washer 19. The flat washer 19 is placed between the second assembly washer 23 and the second spring washer 17. The cross-head screw 18 passes through the interior of the second spring washer 17, the flat washer 19, and the second assembly washer 23 from bottom to top and then connects to the first assembly washer 22. The cross-head screw 18 is designed to connect the second assembly washer 23, the second assembly washer 23, the flat washer 19, and the second spring washer 17.

[0027] Working principle: In use, firstly, install the corresponding number of No. 1 assembly shims 22 according to the actual door thickness. Then, select either Z-shaped handle 20 or straight handle 21 as needed. Both Z-shaped handle 20 and straight handle 21 are conventional locking tongues. When the door lock is in the working state, the operator lifts handle 3 by hand. At this time, spring 8 is released and rebounds, pushing the central shaft 2 down to the limit position. The limit position is achieved when knurled pin 7 is engaged in the opening of the main body 1. In the U-shaped groove, in the unlimited position state, the knurled pin 7 is separated from the U-shaped groove opened in the main body 1. At this point, all exposed parts connected to the central shaft 2 can rotate freely according to the central shaft 2 sleeved in the middle of the main body 1. The hidden handle 3 can be turned to a suitable position for use, thereby achieving the purpose of locking and unlocking. Finally, when the hatch lock is not in working state, the central shaft 2 and handle 3 are hidden inside the main body 1, the spring 8 is in a compressed state, and the knurled pin 7 is stuck in the U-shaped groove opened in the main body 1.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A telescopic hatch lock, comprising a main body (1), characterized in that: The main body (1) is internally fitted with a central shaft (2). The central shaft (2) is internally fitted with a plastic washer (4), a first rubber ring (5), a second nylon bushing (9), a first spring (8), and a first nylon bushing (6) sequentially from top to bottom. A U-shaped groove is formed at the bottom of the main body (1). The main body (1) is connected to the central shaft (2) via the U-shaped groove and a first knurled pin (7). The central shaft (2) is movably connected to the main body (1) via a second spring (12) and a steel ball (13). A second knurled pin (14) is movably fitted onto the outer wall of the upper end of the central shaft (2). A handle (3) is fixedly fitted onto the outer wall of the second knurled pin (14) at the end furthest from the central shaft (2). (1) The outer wall of the central shaft (2) is fitted with a No. 1 assembly washer (22) and a No. 2 assembly washer (23) from top to bottom. The No. 1 assembly washer (22) and the No. 2 assembly washer (23) are fixedly connected by a flat washer (19), a No. 2 spring washer (17) and a cross-head screw (18). The lower end of the central shaft (2) extends to the bottom of the main body (1). The lower end of the central shaft (2) passes through the nut (10) and the No. 1 spring washer (16) from top to bottom and then passes through the inside of the cast nut (11). The outer wall of the central shaft (2) is fitted with a Z-shaped handle (20) or a straight handle (21), and the Z-shaped handle (20) and the straight handle (21) are installed between the nut (10) and the No. 1 spring washer (16).

2. The telescopic hatch lock according to claim 1, characterized in that: The outer wall of the upper end of the main body (1) is provided with a slot, and a second rubber ring (15) is sleeved in the slot. The second rubber ring (15) is located above the first assembly pad (22).

3. A telescopic hatch lock according to claim 1, characterized in that: The outer wall of the upper end of the central shaft (2) is provided with a groove, and the inner wall of the groove is fixedly connected to the inner end of the second spring (12). The end of the second spring (12) away from the groove on the central shaft (2) is fixedly connected to the outer wall of the steel ball (13).

4. A telescopic hatch lock according to claim 1, characterized in that: The inner wall of the first spring (8) is sleeved with the outer wall of the central shaft (2), the outer wall of the first spring (8) is sleeved with the inner wall of the main body (1), the upper end of the first spring (8) is fixedly connected with the second nylon bushing (9), and the end of the first spring (8) away from the second nylon bushing (9) is fixedly connected with the first nylon bushing (6).

5. A telescopic hatch lock according to claim 1, characterized in that: The inner wall of the cast nut (11) is threaded, and the inner wall of the cast nut (11) is threadedly connected to the outer wall of the lower end of the central shaft (2).

6. A telescopic hatch lock according to claim 1, characterized in that: The outer wall of the cross-head screw (18) is threadedly connected to the inner wall of the second spring washer (17). The outer wall of the cross-head screw (18) is movably connected to the inner wall of the flat washer (19). The flat washer (19) is placed between the second assembly washer (23) and the second spring washer (17). The cross-head screw (18) passes through the interior of the second spring washer (17), the flat washer (19), and the second assembly washer (23) from bottom to top, and then connects to the first assembly washer (22).

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