Safety lock

Abstract

The utility model provides a safety lock, and belongs to the technical field of locks. The safety lock solves the technical problem that an existing safety lock cannot give consideration to locking stability and unlocking convenience of the safety lock at the same time. The safety lock comprises a locking seat, a rotating seat, a lock shell and a seesaw, the lock shell is in a long strip shape, the two longitudinal ends of the lock shell are a hinged end and a swing end respectively, the seesaw is connected to the lock shell in a swing mode, the seesaw is provided with a locking part and a pressing part capable of enabling the locking part to tilt through pressing, the rotating seat is rotationally connected to the hinged end of the lock shell, and the rotating seat is rotationally connected to the lock shell. The locking base is inserted into the swing end of the lock shell in a sliding mode, the pressing portion of the warping plate is located at the swing end of the lock shell, and the swing end of the lock shell is provided with an elastic reset portion which tilts towards the side where the warping plate is located. The reset part abuts against the pressing part of the warping plate so that the locking part of the warping plate can be locked with the locking base in the sliding inserting direction of the locking base. The lock is stable in locking and convenient for a user to open with one hand.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lockset, and relates to a safety lock. BACKGROUND

[0002] Children can easily open or close the general cabinet door, and the hands of children without any safety awareness can be clamped between the door frame and the door or between the two cabinet doors, so a safety lock for locking the above type of door and facilitating adult opening is required.

[0003] The safety lock with the authorization announcement number CN221546656U includes a locking seat, a rotating seat and a strip-shaped main shell, the rotating seat is rotationally connected to one end of the main shell, the locking seat is slidingly inserted into the other end of the main shell and is limited along the direction of the rotating axis of the main shell, a swingable flap is connected to the main shell, one end of the flap is a locking end, the other end of the flap is a pressing end, the locking end has a locking structure for locking the locking seat in the sliding insertion direction of the locking seat, and the locking structure can be unlocked when the locking end is lifted by pressing the pressing end, so that the main shell can rotate relative to the rotating seat to be separated from the locking seat.

[0004] The above product is convenient to use, but the pressing end of the flap is easily unlocked under the action of the internal rebounding piece when it is accidentally touched by the outside world, and the sensitivity is high; if the rebounding piece is cancelled, the user can unlock by pressing the pressing end of the flap at one end of the main shell, but the user still needs to control the swing of the other end of the main shell to realize the separation of the main shell and the locking seat, and since there is a distance between the two ends of the main shell, it is inconvenient for the user to unlock with one hand. SUMMARY

[0005] The utility model provides a safety lock in view of the above -mentioned problem that the prior art exists, the technical problem that the utility model wants to solve is: how to give consideration to the locking stability and the unlocking convenience of the safety lock.

[0006] The purpose of the utility model can be realized through the following technical schemes:

[0007] A safety lock includes a locking seat, a rotating seat, a lock shell and a flap, the lock shell is long strip-shaped, the longitudinal two ends of the lock shell are respectively hinged ends and swing ends, the flap is swingably connected to the lock shell, the flap has a locking part and a pressing part that can make the locking part lift by pressing, the rotating seat is rotationally connected to the hinged end of the lock shell, the locking seat is slidingly inserted into the swing end of the lock shell, characterized in that the pressing part of the flap is located at the swing end of the lock shell, the swing end of the lock shell has a reset part that is inclined to lift and has elasticity towards the side where the flap is located, and the reset part abuts against the pressing part of the flap to make the locking part of the flap keep locking with the locking seat in the sliding insertion direction of the locking seat.

[0008] The rotating seat and the locking seat can be fixed on both sides of the gap of the opening and closing door by pasting or using connecting pieces. The hinged end of the strip-shaped lock shell is rotationally connected with the rotating seat, and the swing end can be inserted and matched with the locking seat across the door gap to form a limit in the opening direction of the door body to prevent the opening and closing door from opening. The locking part of the flap swing-connected to the lock shell is locked to avoid the separation of the lock shell and the locking seat. By pressing the pressing part of the flap from the outside, the locking part of the flap is lifted to achieve unlocking. By arranging the pressing part of the flap on the swing end of the lock shell, and arranging the reset part in the shape of a spring plate on the swing end of the lock shell, the reset part is in abutment with the pressing part of the flap. In this way, the reset part is in abutment with the pressing part of the flap, so that the locking part of the flap always has a tendency to lock. Even if the pressing part of the flap is temporarily unlocked by mistake, the lock shell and the locking seat will not actively separate, causing the locking part of the flap to fail to lock, thereby ensuring the stability of the lock. At the same time, since the pressing part of the flap is arranged on the swing end of the lock shell, the user can conveniently push the other end of the lock shell to rotate around the rotating seat when pressing the unlocking, thereby achieving unlocking without the need for assistance from the other hand, and the operation is more labor-saving and convenient.

[0009] In the above safety lock, the swing axis of the flap is arranged along the longitudinal direction of the lock shell. In this way, the force direction of the finger pressing the flap swing is partially consistent with the direction of the other end of the lock shell swinging to unlock, thereby achieving the swing unlocking of the lock shell by using the unlocking pressing force, so that the operation is labor-saving and convenient.

[0010] In the above safety lock, the swing end of the lock shell has an arc-shaped sliding groove for inserting the locking seat, and the inner end of the sliding groove is closed. The reset part is in the shape of a U-shaped spring plate and is arranged around the outer periphery of the inner end of the sliding groove. The closed inner end of the sliding groove is used to limit the stroke of the locking seat inserted into the lock shell, so that the locking part of the flap can be accurately locked with the locking seat. By arranging the reset part in the shape of a U-shaped spring plate around the outer periphery of the inner end of the sliding groove, the reset part can be reasonably arranged by using the space of the outer periphery of the sliding groove, which is beneficial to avoid interference between the reset part and the locking seat, and can provide stable reset force for the flap, thereby ensuring stable function and making the structure more compact.

[0011] In the above safety lock, the swing end of the lock shell has a receiving groove for embedding the flap, and the flap is swing-connected to the inner wall of the receiving groove. The sliding groove is located on the bottom surface of the receiving groove, and the reset part is located in the receiving groove. In this way, when the flap is pressed, the hand of the user can embed the swing flap part into the receiving groove, thereby being able to stably press the inner wall of the receiving groove to push the swing end of the lock shell to swing. At the same time, the receiving groove protects the flap, which can avoid the influence of the circumferential external force on the flap, thereby ensuring the stability of the lock.

[0012] In the safety lock, the flap is disc-shaped, and the locking portion and the pressing portion of the flap are spaced apart from the inner wall of the accommodating groove. Thus, interference and scratching between the locking portion and the pressing portion and the inner wall of the accommodating groove are avoided when the flap swings, and smooth operation is achieved.

[0013] In the safety lock, the flap has an abutting plane abutting against the bottom surface of the accommodating groove, and the abutting plane is located on the side of the swing axis of the flap close to the locking portion. Thus, the abutting plane at the locking portion of the flap abuts against the bottom surface of the accommodating groove, and the position of the locking portion is kept stable under the influence of the reset portion. That is, when the user presses the locking portion in the locked state, it is found that the locking portion cannot be pressed, and only the pressing portion of the flap can be pressed, so that the user can identify different ends of the flap through touch.

[0014] In the safety lock, the lock shell is an integral injection molding part, and the area opposite to the reset portion on the bottom surface of the accommodating groove has a demolding hole with the same shape as the reset portion. Thus, the core of the reset portion is demolded from the demolding hole after injection molding, and the process cost is saved.

[0015] In the safety lock, the reset portion has a supporting plane abutting against the flap, and the pressing portion of the flap abuts against the supporting plane. Thus, the contact area between the flap and the reset portion is increased, and the service life of the reset portion is affected by long-term contact and excessive wear.

[0016] Compared with the prior art, the safety lock has the following advantages:

[0017] In the safety lock, the pressing portion of the flap is arranged at the swing end of the lock shell. When the user presses the lock to unlock, the hand of the user can conveniently push the swing end of the lock shell to rotate around the rotating seat, and then the lock is unlocked. The user can unlock the lock with one hand, and the stability of the lock and the convenience of operation are considered. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the perspective structure of the embodiment.

[0019] Figure 2 is a schematic diagram of the front view structure of the embodiment.

[0020] Figure 3 is Figure 2 A-A sectional view of the embodiment.

[0021] Figure 4 is Figure 2 B-B sectional view of the embodiment.

[0022] Figure 5 is Figure 4 the enlarged view of C in the embodiment.

[0023] Figure 6 is a schematic diagram of the three-dimensional exploded structure of the present embodiment.

[0024] Figure 7 is a schematic diagram of the three-dimensional exploded structure of the present embodiment from another angle.

[0025] Figure 8 is a schematic diagram of the structure of the present embodiment in the locked state on the cabinet door.

[0026] Figure 9 is a schematic diagram of the structure of the present embodiment in the unlocked state on the cabinet door.

[0027] In the figure, 1, locking seat; 2, rotating seat;

[0028] 3, lock shell; 31, reset portion; 311, support plane; 32, sliding groove; 33, accommodating groove; 34, demolding hole; 35, hinged end; 36, swinging end;

[0029] 4, flap; 41, locking portion; 42, pressing portion; 43, abutting plane;

[0030] 5, cabinet door. DETAILED DESCRIPTION

[0031] The following is a specific embodiment of the present utility model and further describes the technical solution of the present utility model in combination with the drawings, but the present utility model is not limited to these embodiments.

[0032] As shown in Figure 1 , Figure 2 , the safety lock comprises a locking seat 1, a lock shell 3, and a flap 4. The lock shell 3 is in the shape of a long strip, and the two ends of the lock shell 3 are respectively a hinged end 35 and a swinging end 36. The lock shell 3, the flap 4, and the locking seat 1 are all injection molded parts. The flap 4 is in the shape of a disc, and the flap 4 is connected to the lock shell 3.

[0033] As shown in Figure 3 , the locking seat 1 is slidingly inserted into the swinging end 36 of the lock shell 3. The locking portion 41 of the flap 4 is inserted into the locking seat 1 towards the protrusion and is locked with the locking seat 1 along the sliding insertion direction of the locking seat 1. The swinging end 36 of the lock shell 3 is integrally connected with a reset portion 31 that is inclined and raised towards the side where the flap 4 is located. The pressing portion 42 of the flap 4 is also located at the swinging end 36 of the lock shell 3, and the reset portion 31 abuts against the pressing portion 42 of the flap 4. The swinging end 36 of the lock shell 3 has an accommodating groove 33 for embedding the flap 4. The locking portion 41 and the pressing portion 42 of the flap 4 are both spaced apart from the inner wall of the accommodating groove 33, and the reset portion 31 is located in the accommodating groove 33. The reset portion 31 has a support plane 311 for abutting against the flap 4, and the pressing portion 42 of the flap 4 abuts against the support plane 311.

[0034] As shown in Figure 4 ,Figure 5 As shown in the figure, the rotating seat 2 is pivotally connected to the hinge end 35 of the lock shell 3, the swing axis of the flap 4 is arranged along the longitudinal direction of the lock shell 3, and the locking portion 41 and the pressing portion 42 are located on both sides of the swing axis of the flap 4. The flap 4 is swingably connected to the inner wall of the accommodating groove 33, and the flap 4 has an abutting plane 43 abutting against the bottom surface of the accommodating groove 33.

[0035] As shown in the figure, Figure 6 , Figure 7 The swing end 36 of the lock shell 3 has a sliding groove 32 for inserting the locking seat 1 and in the shape of an arc, the inner end of the sliding groove 32 is closed, and the reset portion 31 is in the shape of a U-shaped elastic sheet and is arranged around the outer periphery of the inner end of the sliding groove 32. The sliding groove 32 is located on the bottom surface of the accommodating groove 33, the abutting plane 43 is located between the locking portion 41 of the flap 4 and the hinge of the flap 4, and the area of the bottom surface of the accommodating groove 33 opposite to the reset portion 31 has a demolding hole 34 with the same shape as the reset portion 31.

[0036] As shown in the figure, Figure 8 , Figure 9 The locking seat 1 and the rotating seat 2 are fixed on the two cabinet doors 5 respectively, and the locking seat 1 and the rotating seat 2 are connected and locked as a whole through the lock shell 3, so as to prevent the cabinet doors 5 from being opened; after pressing the flap 4, the lock shell 3 and the locking seat 1 can be unlocked, and the swing end 36 of the lock shell 3 is swung around the rotating seat 2 by applying force, so as to separate the lock shell 3 and the locking seat 1, thereby enabling the two cabinet doors 5 to be opened.

[0037] The specific embodiments described herein are only illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A safety lock comprising a locking seat (1), a rotating seat (2), a lock housing (3) and a flap (4), the lock housing (3) being in the shape of a long strip, the longitudinal two ends of the lock housing (3) being respectively a hinged end (35) and a swinging end (36), the flap (4) being swingably connected to the lock housing (3), the flap (4) having a locking portion (41) and a pressing portion (42) capable of making the locking portion (41) swing up by pressing, the rotating seat (2) being rotatably connected to the hinged end (35) of the lock housing (3), and the locking seat (1) being slidably inserted into the swinging end (36) of the lock housing (3), characterized in that, The pressing part (42) of the flap (4) is located at the swing end (36) of the lock shell (3), the swing end (36) of the lock shell (3) has a reset part (31) which is inclined and flexible towards the side where the flap (4) is located, and the reset part (31) abuts against the pressing part (42) of the flap (4) to make the locking part (41) of the flap (4) locked with the locking seat (1) in the sliding insertion direction.

2. The safety lock of claim 1, wherein The swing axis of the flap (4) is arranged along the longitudinal direction of the lock shell (3).

3. The safety lock of claim 2, wherein, The swing end (36) of the lock shell (3) has a sliding groove (32) for inserting the locking seat (1) and in the shape of an arc, the inner end of the sliding groove (32) is closed, and the reset part (31) is in the shape of a U-shaped elastic sheet and arranged around the outer periphery of the inner end of the sliding groove (32).

4. The safety lock of claim 3, wherein, The swing end (36) of the lock shell (3) has a receiving groove (33) for embedding the flap (4), and the flap (4) is swing-connected to the inner wall of the receiving groove (33), the sliding groove (32) is located on the bottom surface of the receiving groove (33), and the reset part (31) is located in the receiving groove (33).

5. The safety lock of claim 4, wherein, The flap (4) is in the shape of a disc, and the locking part (41) and the pressing part (42) of the flap (4) are both spaced apart from the inner wall of the receiving groove (33).

6. The safety lock of claim 4, wherein, The flap (4) has an abutting plane (43) for abutting against the bottom surface of the receiving groove (33), and the abutting plane (43) is located on the side of the swing axis of the flap (4) close to the locking part (41).

7. The safety lock of claim 4, wherein, The lock shell (3) is an integral injection molding part, and the area of the bottom surface of the receiving groove (33) opposite to the reset part (31) has a demolding hole (34) which is the same in shape as the reset part (31).

8. The safety lock according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, characterized in that, The reset part (31) has a supporting plane (311) for abutting against the flap (4), and the pressing part (42) of the flap (4) abuts against the supporting plane (311).

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