Door lock with anti-misoperation function

Abstract

This utility model discloses a door lock with anti-misoperation function, belonging to the technical field of door lock equipment. It addresses the limitations of handle rotation and the difficulty in limiting the rotation direction of the handle. The lock lock includes a handle and a lock cylinder. A connecting seat is fixedly connected to one end of the lock cylinder near the handle. A rotating cylinder is rotatably mounted outside the connecting seat and fixedly connected to the end of the handle. The handle is rotatably mounted on the lock cylinder via the connecting seat and the rotating cylinder. An anti-misoperation mechanism is provided between the connecting seat and the rotating cylinder. This utility model, through its anti-misoperation mechanism, allows the lock cylinder to be rotated at any time according to the door lock's usage process while the handle is being operated, thereby improving the ease of use. The locking component on the anti-misoperation mechanism facilitates limiting the rotation direction of the handle, thus preventing accidental opening of the lock cylinder during handle rotation.

Description

Technical Field

[0001] This utility model belongs to the technical field of door lock equipment, specifically relating to a door lock with anti-misoperation function. Background Technology

[0002] Door locks are installed on the door and are used to open or close it. A typical inside lock allows for quick opening by turning the handle. However, some doors in rooms where special items are stored, such as storage rooms, can pose safety hazards if accidentally opened. Children are particularly prone to accidental operation.

[0003] A prior art patent, CN216714092U, describes a door lock with anti-misoperation features. This patent includes a lock cylinder and a handle. The handle has a lock sleeve at its end, and a portion of the lock cylinder passes through the lock sleeve. The lock cylinder includes a housing with an annular groove running circumferentially. An annular protrusion is located on the inner wall of the lock sleeve and slides within the annular groove. A spring is located on one side wall of the annular groove, causing the annular protrusion to abut against the other side wall of the groove, creating a gap between the bottom wall of the lock sleeve and the end of the lock cylinder. A cross-shaped positioning block is located on the bottom wall inside the lock sleeve. A connecting block is provided between the positioning block and the bottom wall inside the lock sleeve. The outer end of the lock cylinder is provided with a cross-shaped positioning groove that matches the positioning block. At least two limiting members are provided on the groove wall of the positioning groove to prevent the door lock from being opened accidentally and improve the security performance of the door lock. However, in actual use, there are still the following shortcomings: From a practical point of view, when performing the anti-accidental operation on the door lock, this patent completes the rotation operation of the lock cylinder by pushing the limiting member. This process can only be performed after the door panel on which the door lock is installed is stably limited, which has limitations in use. In addition, the handle can only be rotated in one direction during the operation, which makes it easier to make accidental operation.

[0004] Therefore, a door lock with anti-misoperation function is needed to solve the problems of the existing technology, such as the large limitations when rotating the handle and the inconvenience of limiting the rotation direction of the handle. Utility Model Content

[0005] The purpose of this invention is to provide a door lock with anti-misoperation function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a door lock with anti-misoperation function, including a handle and a lock cylinder, wherein a connecting seat is fixedly connected to one end of the lock cylinder near the handle, and a rotating cylinder is rotatably disposed outside the connecting seat, the rotating cylinder being fixedly connected to the end of the handle, the handle being rotatably disposed on the lock cylinder through the connecting seat and the rotating cylinder, and an anti-misoperation mechanism is provided between the connecting seat and the rotating cylinder, the anti-misoperation mechanism being used to limit the rotation of the handle to prevent misoperation.

[0007] It should be noted in the solution that the anti-misoperation mechanism includes a fixed cylinder and a connecting shaft. The fixed cylinder is fixedly connected to the connecting seat. The right end of the connecting shaft is connected to the rotating cylinder. The connecting shaft extends through the fixed cylinder. A locking rod is fixedly connected to the outer circumferential surface of the connecting shaft. A toothed block is fixedly connected to the inner wall surface of the fixed cylinder corresponding to the locking rod. A locking component is provided outside the toothed block inside the fixed cylinder. The locking component is used to limit the locking rod.

[0008] It is worth noting that multiple locking rods are evenly distributed on the outer surface of the connecting shaft.

[0009] It should be further noted that the snap-fit ​​assembly is rotatably mounted inside the fixed cylinder outside the toothed block.

[0010] In a preferred embodiment, multiple snap-fit ​​components, matching snap-fit ​​rods and toothed blocks are provided inside the fixed cylinder, and are centrally and rotatably distributed within the fixed cylinder.

[0011] In a preferred embodiment, the snap-fit ​​assembly includes a rotating block, a rotating ring, and a connecting rod. The rotating block is movably disposed within the fixed cylinder and is correspondingly disposed with a toothed block. The rotating ring is fixedly connected to both ends of the connecting rod. The connecting rod is fixedly connected to the inside of the fixed cylinder via the rotating ring. The rotating block is rotatably disposed outside the connecting rod via the rotating ring. A torsion spring is disposed on the outside of the connecting rod. Both ends of the torsion spring are respectively connected to the rotating block and the connecting rod. A snap-fit ​​block is fixedly connected to the outer surface of the rotating block, and a stop block is fixedly connected to the other side of the outer surface of the rotating block.

[0012] In a preferred embodiment, the locking block is located outside the connecting shaft via a rotating block.

[0013] In a preferred embodiment, the rotating block is limited to rotate outside the toothed block by a stop block.

[0014] Compared with the prior art, the door lock with anti-misoperation function provided by this utility model has at least the following beneficial effects:

[0015] (1) By setting up an anti-misoperation mechanism, the lock cylinder can be rotated at any time according to the use of the door lock when the handle is operated, thereby improving the convenience of the device.

[0016] (2) The locking component on the anti-misoperation mechanism makes it easy to limit the rotation direction of the handle, thereby preventing the lock cylinder from being accidentally opened during the rotation of the handle, thus improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the fixed cylinder of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the snap-fit ​​component of this utility model.

[0021] In the diagram: 1. Handle; 2. Lock cylinder; 3. Connecting seat; 4. Rotating cylinder; 5. Anti-misoperation mechanism; 501. Fixed cylinder; 502. Connecting shaft; 503. Snap-fit ​​rod; 504. Snap-fit ​​assembly; 5041. Rotating block; 5042. Rotating ring; 5043. Connecting rod; 5044. Torsion spring; 5045. Snap-fit ​​block; 5046. Stop block; 505. Tooth block. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Please see Figure 1-4 This utility model provides a door lock with anti-misoperation function, including a handle 1 and a lock cylinder 2. A connecting seat 3 is fixedly connected to one end of the lock cylinder 2 near the handle 1. A rotating cylinder 4 is rotatably disposed outside the connecting seat 3. The rotating cylinder 4 is fixedly connected to the end of the handle 1. The handle 1 is rotatably disposed on the lock cylinder 2 through the connecting seat 3 and the rotating cylinder 4. An anti-misoperation mechanism 5 is disposed between the connecting seat 3 and the rotating cylinder 4. The anti-misoperation mechanism 5 is used to limit the rotation of the handle 1 to prevent misoperation.

[0024] Further as Figure 1 , Figure 2 and Figure 3As shown, it is worth noting that the anti-misoperation mechanism 5 includes a fixed cylinder 501 and a connecting shaft 502. The fixed cylinder 501 is fixedly connected to the connecting seat 3. The right end of the connecting shaft 502 is connected to the rotating cylinder 4. The connecting shaft 502 extends through the fixed cylinder 501. A locking rod 503 is fixedly connected to the outer circumferential surface of the connecting shaft 502. Multiple locking rods 503 are evenly distributed on the outer surface of the connecting shaft 502. A toothed block 505 is fixedly connected to the inner wall surface of the fixed cylinder 501 corresponding to the locking rod 503. A locking component 504 is provided outside the toothed block 505 inside the fixed cylinder 501. The locking component 504 is used to limit the locking rod 503. The locking component 504 is rotatably arranged inside the fixed cylinder 501 outside the toothed block 505. Multiple locking components 504 are provided inside the fixed cylinder 501 to match the locking rod 503 and the toothed block 505, and are centrally and rotatably distributed inside the fixed cylinder 501.

[0025] When in use, rotating the handle 1 can cooperate with the locking component 504 to prevent accidental operation during the rotation of the lock cylinder 2, thereby preventing accidental operation that could cause the lock cylinder to rotate and thus improving the security of the door lock.

[0026] As can be seen from the above working process, the anti-misoperation mechanism 5 can rotate the lock cylinder 2 at any time according to the use of the door lock when the handle 1 is operated, thereby improving the convenience of the device.

[0027] Further as Figure 3 and Figure 4 As shown, it is worth noting that the snap-fit ​​assembly 504 includes a rotating block 5041, a rotating ring 5042, and a connecting rod 5043. The rotating block 5041 is movably disposed within the fixed cylinder 501 and is disposed corresponding to the toothed block 505. The rotating ring 5042 is fixedly connected to both ends of the connecting rod 5043. The connecting rod 5043 is fixedly connected inside the fixed cylinder 501 through the rotating ring 5042. The rotating block 5041 rotates outside the connecting rod 5043 through the rotating ring 5042. The connecting rod 5043 is equipped with a torsion spring 5044 on its outer side. The two ends of the torsion spring 5044 are connected to the rotating block 5041 and the connecting rod 5043 respectively. A locking block 5045 is fixedly connected to the outer surface of the rotating block 5041. The locking block 5045 is located outside the connecting shaft 502 through the rotating block 5041. A stop block 5046 is fixedly connected to the other side of the outer surface of the rotating block 5041. The rotating block 5041 is limited to rotate outside the toothed block 505 by the stop block 5046.

[0028] When in use, turn the handle 1 clockwise, and the locking rod 503 is locked by the locking block 5045. Then, the locking block 5045 drives the fixed cylinder 501 and the connecting seat 3 to rotate, thereby causing the lock cylinder 2 to rotate. Thus, the unlocking operation is achieved by rotating the lock cylinder 2.

[0029] Turning handle 1 counterclockwise causes connecting shaft 502 to drive locking rod 503 to rotate, and locking rod 503 to press locking block 5045. This causes locking block 5045 to rotate outside rotating ring 5042 via rotating block 5041, thus preventing locking block 5045 from locking locking rod 503 and preventing rotation of lock cylinder 2. This prevents accidental opening of lock cylinder 2. Furthermore, the spring force of torsion spring 5044 resets locking block 5045 via rotating block 5041, allowing lock cylinder 2 to be rotated when handle 1 is operated correctly, thereby improving the practicality of the device.

[0030] This solution has the following working process: When this device is in use, when operating the lock cylinder 2, rotating the handle 1 clockwise causes the handle 1 to drive the rotating cylinder 4 to rotate outside the connecting seat 3, thereby causing the connecting shaft 502 to rotate. This causes the locking rod 503 to rotate inside the fixed cylinder 501. Through the rotation of the locking rod 503, the locking rod 503 is locked by the locking block 5045, which in turn drives the fixed cylinder 501 and the connecting seat 3 to rotate, thereby causing the lock cylinder 2 to rotate. Thus, the unlocking operation is achieved by rotating the lock cylinder 2. If the handle 1 is rotated counterclockwise, the connecting shaft 502 will rotate. The connecting shaft 502 drives the locking rod 503 to rotate, and the locking rod 503 presses against the locking block 5045, causing the locking block 5045 to rotate outside the rotating ring 5042 via the rotating block 5041. This prevents the locking block 5045 from locking the locking rod 503, thus preventing the lock cylinder 2 from rotating. This prevents accidental operation that could open the lock cylinder 2. Furthermore, the spring force of the torsion spring 5044 resets the locking block 5045 via the rotating block 5041, allowing the lock cylinder 2 to be rotated when the handle 1 is operated correctly, thereby improving the practicality of the device.

[0031] In summary: the anti-misoperation mechanism 5 allows the lock cylinder 2 to be rotated at any time according to the use of the door lock when the handle 1 is operated, thereby improving the convenience of the device; the snap-fit ​​component 504 on the anti-misoperation mechanism 5 makes it easy to limit the rotation direction of the handle 1, thereby preventing the lock cylinder 2 from being accidentally opened during the rotation of the handle 1, thus improving the practicality of the device.

Claims

1. A door lock with anti-misoperation function, comprising a handle (1) and a lock cylinder (2), characterized in that: The lock cylinder (2) is fixedly connected to a connecting seat (3) near the handle (1). A rotating cylinder (4) is rotatably mounted on the outside of the connecting seat (3). The rotating cylinder (4) is fixedly connected to the end of the handle (1). The handle (1) is rotatably mounted on the lock cylinder (2) through the connecting seat (3) and the rotating cylinder (4). An anti-misoperation mechanism (5) is provided between the connecting seat (3) and the rotating cylinder (4). The anti-misoperation mechanism (5) is used to limit the rotation of the handle (1) to prevent misoperation.

2. A door lock with anti-misoperation function according to claim 1, characterized in that: The anti-misoperation mechanism (5) includes a fixed cylinder (501) and a connecting shaft (502). The fixed cylinder (501) is fixedly connected to the connecting seat (3). The right end of the connecting shaft (502) is connected to the rotating cylinder (4). The connecting shaft (502) extends through the fixed cylinder (501). A snap-fit ​​rod (503) is fixedly connected to the outer circumferential surface of the connecting shaft (502). A toothed block (505) is fixedly connected to the inner wall surface of the fixed cylinder (501) corresponding to the snap-fit ​​rod (503). A snap-fit ​​assembly (504) is provided outside the toothed block (505) inside the fixed cylinder (501). The snap-fit ​​assembly (504) is used to limit the snap-fit ​​rod (503).

3. A door lock with anti-misoperation function according to claim 2, characterized in that: The snap-fit ​​rods (503) are evenly distributed on the outer surface of the connecting shaft (502).

4. A door lock with anti-misoperation function according to claim 3, characterized in that: The snap-fit ​​assembly (504) is rotatably mounted inside the fixed cylinder (501) outside the toothed block (505).

5. A door lock with anti-misoperation function according to claim 4, characterized in that: The snap-fit ​​assembly (504) is matched with the snap-fit ​​rod (503) and the toothed block (505) in multiple ways within the fixed cylinder (501), and is centrally and rotatingly distributed within the fixed cylinder (501).

6. A door lock with anti-misoperation function according to claim 5, characterized in that: The snap-fit ​​assembly (504) includes a rotating block (5041), a rotating ring (5042), and a connecting rod (5043). The rotating block (5041) is movably disposed within the fixed cylinder (501) and corresponds to the toothed block (505). The rotating ring (5042) is fixedly connected to both ends of the connecting rod (5043). The connecting rod (5043) is fixedly connected to the inside of the fixed cylinder (501) through the rotating ring (5042). The rotating block (5041) is movably disposed within the fixed cylinder (501) and corresponds to the toothed block (505). 041) A rotating ring (5042) is rotatably mounted outside the connecting rod (5043). A torsion spring (5044) is provided on the outside of the connecting rod (5043). The two ends of the torsion spring (5044) are respectively connected to the rotating block (5041) and the connecting rod (5043). A locking block (5045) is fixedly connected to the outer surface of the rotating block (5041), and a stop block (5046) is fixedly connected to the other side of the outer surface of the rotating block (5041).

7. A door lock with anti-misoperation function according to claim 6, characterized in that: The card block (5045) is located outside the connecting shaft (502) via a rotating block (5041).

8. A door lock with anti-misoperation function according to claim 7, characterized in that: The rotating block (5041) is limited to rotate outside the toothed block (505) by a stop block (5046).

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