Knob spring lock

Abstract

The utility model belongs to the technical field of locks, and particularly relates to a knob spring lock. A blind hole is formed in the center of the lock column, a first spring and a push block are sequentially arranged in the blind hole, two grooves penetrating through the blind hole are formed in the outer side wall of the lock column, and lock pins are arranged in the two grooves; the front end of the rotating block is located on the front side of the lock pin. The shell is connected with the rotating block, a first wavy line is arranged at the rear end of the shell, a second wavy line is arranged at the front end of the twisting handle, the twisting handle is rotationally connected to the shell, and the first wavy line is meshed with the second wavy line; the lock head comprises a clamping head, a V-shaped groove is formed in the clamping head, and the lock pin is used for being clamped into the V-shaped groove. And the two lock pins are separated from the V-shaped groove of the clamping head by rotating the twisting handle so as to unlock the lock head. The knob spring lock can be quickly unlocked and locked, unlocking tools such as a key are not needed, and the knob spring lock is convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of locks, and particularly relates to a knob snap lock. Background Art

[0002] Existing locks generally include a lock head and a lock base. After the lock head and the lock base are locked together, a key is used to unlock the lock head.

[0003] However, since the key needs to be inserted into the keyhole of the lock head when opening, when the key is lost or broken in the keyhole of the lock head, it will be difficult to open the lock, and it is inconvenient to use. Therefore, it is necessary to design a knob snap lock to solve the above problems. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a knob snap lock to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical solution: A knob snap lock includes a lock head and a knob lock. The knob lock includes a lock post, a rotating block, a housing, and a torsion handle. A blind hole is provided at the center of the lock post. A first spring and a push block are sequentially arranged in the blind hole. Two grooves penetrating through the blind hole are provided on the outer side wall of the lock post. Both grooves extend in the front-rear direction. The distance between the front ends of the two grooves is smaller than the distance between the rear ends of the two grooves. Lock pins are arranged in both grooves. The lock pins are slidably connected to the grooves in the front-rear direction;

[0006] The front end of the rotating block is located in front of the lock pin, and the rear end of the rotating block is connected to the torsion handle;

[0007] The housing is connected to the rotating block. A first wavy line is provided at the rear end of the housing. A second wavy line is provided at the front end of the torsion handle. The torsion handle is rotatably connected to the housing, and the first wavy line meshes with the second wavy line;

[0008] The lock head includes a clamping head, and a V-shaped groove is provided on the clamping head. The lock pin is used to be clamped into the V-shaped groove.

[0009] Further, a hook surface is provided at the front end of the groove, and the inner wall of the groove is an inclined surface that extends from the hook surface to the rear. The inclined surface extends in the radial direction of the lock post from front to back.

[0010] Further, a second spring is provided between the rotating block and the torsion handle.

[0011] Further, the rear end of the lock post passes through the housing and is threadedly connected with a locking nut.

[0012] Further, a gasket is provided between the second spring and the torsion handle.

[0013] Further, the knob lock also includes a round pin. A long tooth is provided at the rear end of the rotating block. A first pin hole is opened at the rear end of the long tooth. A second pin hole is opened on the torsion handle. The long tooth is inserted into the torsion handle. The first pin hole is used to correspond to the second pin hole. The round pin sequentially passes through the first pin hole and the second pin hole.

[0014] Further, the lock head also includes a hexagonal rod, a hollow rubber bowl, and an adjusting nut. The hexagonal rod is threadedly connected to the hollow rubber. The chuck is provided at the rear end of the hexagonal rod. The adjusting nut is connected to the front end of the hexagonal rod.

[0015] Technical effects and advantages of the present utility model:

[0016] 1. By rotating the torsion handle, the two lock pins are disengaged from the V-shaped groove of the chuck to unlock the lock head. It is beneficial to quickly unlock and lock the knob snap lock, and there is no need to use unlocking tools such as keys, which is more convenient to use.

[0017] Other features and advantages of the present utility model will be described in the subsequent description, and part of them will be obvious from the description, or understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Shows the external structure schematic diagram of the knob lock in the embodiment of the present utility model;

[0020] Figure 2 Shows the internal structure schematic diagram of the knob lock in the embodiment of the present utility model;

[0021] Figure 3 Shows the structure schematic diagram of the lock post in the embodiment of the present utility model;

[0022] Figure 4 Shows the structure schematic diagram of the first spring and the push block in the embodiment of the present utility model;

[0023] Figure 5The structural schematic diagram of the torsion handle according to the embodiment of the present utility model is shown;

[0024] Figure 6 The structural schematic diagram of the outer shell according to the embodiment of the present utility model is shown;

[0025] Figure 7 The structural schematic diagram of the lock head according to the embodiment of the present utility model is shown.

[0026] Reference numerals: 11, chuck; 111, V-shaped groove; 12, hexagonal rod; 13, hollow rubber bowl; 14, adjusting nut; 21, lock post; 211, blind hole; 212, first spring; 213, push block; 214, groove; 22, rotating block; 221, long tooth; 222, round pin; 23, outer shell; 231, first wavy line; 24, torsion handle; 241, second wavy line; 251, second spring; 252, gasket; 26, locking nut; 3, lock pin. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] As Figures 1 to 3 and Figure 7 shown, a rotary knob latch according to an embodiment of the present utility model includes a lock head and a rotary knob lock. The rotary knob lock includes a lock post 21, a rotating block 22, an outer shell 23 and a torsion handle 24. A blind hole 211 is provided at the center of the lock post 21. A first spring 212 and a push block 213 are sequentially arranged in the blind hole 211. Two grooves 214 penetrating through the blind hole 211 are provided on the outer side wall of the lock post 21. Both of the two grooves 214 extend in the front-rear direction. The distance between the front ends of the two grooves 214 is less than the distance between the rear ends of the two grooves 214. A lock pin 3 is arranged in each of the two grooves 214. The lock pin 3 is slidably connected to the groove 214 in the front-rear direction;

[0029] The front end of the rotating block 22 is located on the front side of the lock pin 3, and the rear end of the rotating block 22 is connected to the torsion handle 24;

[0030] The outer shell 23 is connected to the rotating block 22. A first wavy line 231 is provided at the rear end of the outer shell 23, and a second wavy line 241 is provided at the front end of the turning handle 24. The turning handle 24 is rotatably connected to the outer shell 23, and the first wavy line 231 meshes with the second wavy line 241;

[0031] The lock head includes a clamping head 11. A V-shaped groove 111 is formed in the clamping head 11, and the locking pin 3 is used to be inserted into the V-shaped groove 111.

[0032] Specifically, the rotating block 22 is located outside the locking column 21, and the outer shell 23 is located outside the rotating block 22. Secondly, the first wavy line 231 is circumferentially arranged at the rear end of the outer shell 23, and the second wavy line 241 is circumferentially arranged at the front end of the turning handle 24.

[0033] In this embodiment, when the lock head is connected to the knob by a snap lock, when the clamping head 11 is inserted into the blind hole 211, the clamping head 11 pushes the push block 213 to move backward in the blind hole 211 and compresses the first spring 212; during the backward movement of the push block 213, the two locking pins 3 are driven to slide backward in the groove 214 to increase the distance between the two locking pins 3, so that the rear end of the lock head can be inserted between the two locking pins 3. When the V-shaped groove 111 at the rear end of the clamping head 11 is located between the two locking pins 3, the two locking pins 3 are inserted into the V-shaped groove 111 of the clamping head 11, thereby realizing the locking of the knob snap lock and the lock head.

[0034] When unlocking the lock head, by rotating the turning handle 24, the turning handle 24 rotates relative to the outer shell 23. The second wavy line 241 at the front end of the turning handle 24 meshes with the first wavy line 231 at the rear end of the outer shell 23. When the top of the first wavy line 231 abuts against the top of the second wavy line 241, the turning handle 24 moves backward relative to the outer shell 23; by connecting the turning handle 24 to the rotating block 22, the rotating block 22 is driven to move backward; during the backward movement of the rotating block 22, the two locking pins 3 are driven to slide backward along the groove 214. Since the distance between the front ends of the two grooves 214 is smaller than the distance between the rear ends of the two grooves 214, the two locking pins 3 open during the backward movement, that is, the two locking pins 3 disengage from the V-shaped groove 111, so that the two locking pins 3 no longer lock the clamping head 11. Then, under the action of the first spring 212, the push block 213 is pushed to move forward in the blind hole 211, so as to push the clamping head 11 to disengage from the blind hole 211 by the forward movement of the push block 213, thereby realizing the unlocking of the knob snap lock and the lock head.

[0035] Thus, by pushing the lock head to move within the blind hole 211, the two lock pins 3 are driven to engage into the V-shaped groove 111 of the chuck 11 to lock the lock head. Secondly, by rotating the turning knob 24, the two lock pins 3 are disengaged from the V-shaped groove 111 of the chuck 11 to unlock the lock head. This is beneficial for quickly unlocking and locking the knob lock, and there is no need to use unlocking tools such as keys, making it more convenient to use. In addition, the turning knob 24 can be rotated left or right to unlock, which is beneficial for further reducing the unlocking difficulty of the knob lock.

[0036] Optionally, a hook surface is provided at the front end of the groove 214, and the inner wall of the groove 214 is set as an inclined surface, which extends from the hook surface to the rear, and the inclined surface extends along the radial direction of the lock post 21 from front to back.

[0037] In this embodiment, by setting the front end of the groove 214 as a hook surface and arranging the lock pin 3 within the hook surface, the lock pin 3 can be prevented from moving forward and disengaging from the groove 214. At the same time, the inner wall of the groove 214 is set as an inclined surface, which extends from front to back and simultaneously extends outward along the radial direction. During the backward movement of the lock pin 3, the distance between the two lock pins 3 gradually increases.

[0038] Optionally, as Figure 2 shown, a second spring 251 is arranged between the rotating block 22 and the turning knob 24.

[0039] In this embodiment, when a force is applied to rotate the turning knob 24, during the backward movement of the turning knob 24 relative to the housing 23, the second spring 251 is stretched, and when the force is released, the second spring 251 contracts to return the turning knob 24 to its original position.

[0040] Optionally, as Figure 4 and Figure 6 shown, the rear end of the lock post 21 passes through the housing 23 and is threadedly connected with a lock nut 26.

[0041] In this embodiment, a reserved hole is provided at the rear end of the housing 23, the rear end of the lock post 21 passes through the housing 23, and the rear end of the lock post 21 is provided with threads. By threadedly connecting the lock nut 26 to the rear end of the lock post 21, the rear end of the lock post 21 can be fixed to the housing 23 by using the lock nut 26.

[0042] Optionally, as Figure 2 shown, a gasket 252 is arranged between the second spring 251 and the turning knob 24.

[0043] In this embodiment, by arranging the gasket 252 between the second spring 251 and the turning knob 24, the gasket 252 can be used to support the second spring 251.

[0044] Optionally, asFigure 2 As shown, the knob latch further includes a round pin 222. A long tooth 221 is provided at the rear end of the rotating block 22. A first pin hole is formed at the rear end of the long tooth 221. A second pin hole is formed on the turning handle 24. The long tooth 221 is inserted into the turning handle 24. The first pin hole is used to correspond to the second pin hole. The round pin 222 sequentially passes through the first pin hole and the second pin hole.

[0045] Specifically, the turning handle 24 includes an external protective shell, a second wavy line 241 and internal reinforcing lines. The protective shell enhances the aesthetic appearance. The wavy line meshes with the first wavy line 231 at the rear of the outer shell 23, causing a change in the meshing height during rotation to unlock the lock. The internal reinforcing lines protect the rear nut of the lock post 21 and also increase the strength of the turning handle 24. There is a through pin hole on the turning handle 24, and the pin hole of the long tooth 221 penetrates the same round pin 222, causing the turning handle 24 to perform an unlocking action when it rotates.

[0046] In this embodiment, by forming a first pin hole on the long tooth 221 and a second pin hole on the turning handle 24, using the first pin hole to dock with the second pin hole, and using the round pin 222 to pass through the first pin hole and the second pin hole, the long tooth 221 can be connected to the turning handle 24.

[0047] Optionally, as Figure 7 shown, the lock head further includes a hexagonal rod 12, a hollow rubber bowl 13 and an adjusting nut 14. The hexagonal rod 12 is threadedly connected to the hollow rubber. The chuck 11 is provided at the rear end of the hexagonal rod 12. The adjusting nut 14 is connected to the front end of the hexagonal rod 12.

[0048] In this embodiment, by rotating the adjusting nut 14, the hexagonal rod 12 can be driven to rotate, thereby driving the chuck 11 to move backward in the blind hole 211, so that the two lock pins 3 are engaged into the V-shaped groove 111 of the chuck 11. Thus, by using a tool such as a wrench to rotate the adjusting nut 14, the chuck 11 can be engaged between the two lock pins 3 for locking, which is convenient for locking.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A knob lock, characterized in that: The invention comprises a lock head and a knob lock, wherein the knob lock comprises a lock column (21), a rotary block (22), a housing (23) and a twist handle (24); a blind hole (211) is provided at the center of the lock column (21); a first spring (212) and a push block (213) are arranged in sequence in the blind hole (211); two grooves (214) penetrating the blind hole (211) are provided on the outer wall of the lock column (21); the two grooves (214) extend in the front-to-back direction; the distance between the front ends of the two grooves (214) is smaller than the distance between the rear ends of the two grooves (214); a lock pin (3) is provided in each of the two grooves (214); the lock pin (3) is slidably connected to the groove (214) in the front-to-back direction; The front end of the rotary block (22) is located in front of the locking pin (3), and the rear end of the rotary block (22) is connected to the twist handle (24); The housing (23) is connected to the rotary block (22); a first wavy line (231) is provided at the rear end of the housing (23); a second wavy line (241) is provided at the front end of the twist handle (24); the twist handle (24) is rotatably connected to the housing (23); the first wavy line (231) is meshed with the second wavy line (241); The lock head comprises a clamping head (11), a V-shaped groove (111) is provided on the clamping head (11), and the lock pin (3) is used to be clamped into the V-shaped groove (111).

2. The knob latch according to claim 1, characterized in that: The front end of the groove (214) is provided with a hook surface, and the inner wall of the groove (214) is provided with an inclined surface, the inclined surface extends from the hook surface to the rear, and the inclined surface extends from the front to the rear along the radial direction of the locking column (21).

3. The knob latch according to claim 1, characterized in that: A second spring (251) is provided between the rotating block (22) and the twist handle (24).

4. The knob latch according to claim 1, characterized in that: The rear end of the locking column (21) passes through the housing (23) and is threadedly connected with a locking nut (26).

5. The knob latch according to claim 3, characterized in that: A gasket (252) is provided between the second spring (251) and the twist handle (24).

6. The knob latch according to claim 1, characterized in that: The knob lock also includes a round pin (222), a long tooth (221) is provided at the rear end of the rotary block (22), a first pin hole is opened at the rear end of the long tooth (221), a second pin hole is opened on the twist handle (24), the long tooth (221) is inserted into the twist handle (24), the first pin hole is used to correspond to the second pin hole, and the round pin (222) passes through the first pin hole and the second pin hole in sequence.

7. The knob latch according to claim 1, characterized in that: The lock head also includes a hexagonal rod (12), a hollow rubber bowl (13) and an adjusting nut (14); the hexagonal rod (12) is threadedly connected to the hollow rubber bowl; the clamping head (11) is arranged at the rear end of the hexagonal rod (12); and the adjusting nut (14) is connected to the front end of the hexagonal rod (12).

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