Universal child handle lock

Abstract

The utility model relates to the field of door and window locks, in particular to a universal child handle lock which comprises a handle, a base, a rotating seat and a positioning piece, the rotating seat comprises an embedded section, a rotating shaft section and a gear section, the embedded section is connected to the handle, a shaft hole is formed in the end face of the gear section, and the rotating shaft section is connected to the rotating shaft section. One end of the positioning piece elastically abuts against the outer curved surface of the rotating shaft section through a spring, at least two positioning grooves matched with the positioning piece are annularly distributed in the outer curved surface of the rotating shaft section, the base is slidably provided with a locking piece used for abutting against the other end of the positioning piece, and a gear section arranged on the rotating seat can be matched with a shifting fork through the rotating seat. The shaft hole formed in the end face of the gear section can be matched with a square shaft, so that the handle lock structure can be used in cooperation with a shifting fork or the square shaft, meanwhile, the handle lock comprises a child lock structure which is also suitable for the shifting fork or the square shaft, the universality of the handle lock is improved, the inventory pressure is reduced, and the use flexibility of the handle lock is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of door and window locks, and in particular to a universal child handle lock. Background Technology

[0002] Door and window handle locks are the opening and closing devices for doors and windows, and an important line of defense for home safety. In addition to the basic opening and closing functions, existing handle locks also have child lock structures to prevent children from accidentally turning the handle and opening the door or window, which could lead to children climbing up and falling out of the door or window and causing danger. Handle locks can be divided into two parts according to the transmission part: the fork and the transmission shaft. Referring to our company's utility model patent application (publication number: CN217872277U): A Concealed Child Door Lock, it can be seen that the structure uses a rotational transmission shaft. In addition, referring to the utility model patent application (publication number: CN218597945U): A Fork Handle, this is a fork structure. The fork moves linearly. The movement mode of the fork and the transmission shaft are different, and their connection structures are also different. This makes the parts of the two types of handle locks incompatible, especially the child lock structure, resulting in a large inventory of parts and insufficient flexibility in use. Utility Model Content

[0003] The present invention provides a universal child handle lock, so as to make the handle lock accessories universal and compatible with lever forks and square shafts.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a universal child handle lock, comprising a handle, a base, a rotating seat, and a positioning member. The rotating seat includes an embedded section, a rotating shaft section, and a gear section for transmission connection of a shift fork. The embedded section is connected to the handle. The end face of the gear section is provided with a shaft hole for mounting a square shaft. One end of the positioning member is elastically abutted against the outer curved surface of the rotating shaft section by a spring. At least two positioning grooves that cooperate with the positioning member are distributed in a ring on the outer curved surface of the rotating shaft section. The base is slidably provided with a locking member for abutting against the other end of the positioning member.

[0005] Furthermore, the base is provided with a receiving cavity, the positioning member is disposed in the receiving cavity and slides radially in the receiving cavity along the rotating shaft section, one end of the receiving cavity is provided with a first opening facing the rotating shaft section, and the other end is provided with a second opening for the positioning member to extend and retract.

[0006] Furthermore, the positioning element includes a pin and a top cap that fits into the positioning groove. The spring is sleeved outside the pin, with one end of the spring abutting against the top cap and the other end abutting against the inner wall of the second opening.

[0007] Furthermore, the base has a slot on its front side, the lock is disposed in the slot, and the lock has a pushing part protruding from the slot on its front side.

[0008] Furthermore, a ball bearing is provided on the back of the lock component, and the ball bearing extends and retracts within the lock component via a compression spring. The base is provided with two limiting pits that cooperate with the ball bearing.

[0009] Furthermore, a cover plate is provided on the front of the base, and the cover plate is rotatably connected to the handle.

[0010] Furthermore, it includes a shift fork, which is provided with a toothed plate that meshes with the gear segment.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the rotating seat, the gear segment set on the rotating seat can be adapted to the shift fork, and the shaft hole set on the end face of the gear segment can be adapted to the square shaft, so that the handle lock structure can be used with the shift fork or the square shaft respectively. At the same time, the handle lock contains a child lock structure. By setting the locking part and the positioning groove respectively abutting against the two ends of the positioning part, the positioning part cannot slide, thereby achieving the locking effect. The child lock structure is also applicable to the shift fork or the square shaft, improving the versatility of the handle lock, reducing inventory pressure, and improving the flexibility of the handle lock in use. Attached Figure Description

[0012] Figure 1 This is an exploded view of the present invention.

[0013] Figure 2 This is a schematic diagram showing the connection of the rotating seat, positioning component, and locking component in this utility model.

[0014] Figure 3 This is a schematic diagram of the locked state of this utility model.

[0015] Figure 4 This is a schematic diagram of the unlocked state of this utility model.

[0016] Figure 5 This is a schematic diagram of the positioning component in this utility model.

[0017] Figure 6 This is a schematic diagram of the rotating seat in this utility model.

[0018] Figure 7 This is a front view of the present invention in the locked state.

[0019] Figure 8 This is a schematic diagram showing the connection between the shift fork and the rotating seat in this utility model.

[0020] Figure 9 This is a perspective view of the connecting plate in this utility model.

[0021] In the diagram: handle 1, base 2, rotating seat 3, positioning component 4, locking component 5, embedded section 31, rotating shaft section 32, gear section 33, pin 41, top cap 42, spring 44, ball bearing 50, pushing part 51, toothed plate 66, cover plate 102, slot 105, connecting plate 222, positioning groove 320, shaft hole 330, receiving cavity 400, first opening 401, second opening 402, limiting pit 500. Detailed Implementation

[0022] 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.

[0023] As shown in the attached figure, this utility model discloses a universal child handle lock, comprising a handle 1, a base 2, a rotating seat 3, and a positioning element 4. The handle 1 is disposed on the front of the base 2. The rotating seat 3 and the positioning element 4 are both disposed within the base 2. The rotating seat 3 is an integrally formed structure, comprising an insert section 31, a rotating shaft section 32, and a gear section 33 for transmission connection of the shift fork. The rotating shaft section 32 is located between the insert section 31 and the gear section 33. The insert section 31 protrudes from the base 2 and is inserted into the handle 1, connecting to the handle 1. The end face of the gear section 33 is provided with a shaft hole 330 for mounting a square shaft. Specifically, the shaft hole 330 is located on the rotation axis of the rotating seat 3. The rotating shaft section 32 is cylindrical. One end of the positioning element 4 elastically abuts against the outer curve of the rotating shaft section 32 by a spring 44. On the outer curved surface of the pivot section 32, at least two positioning grooves 320 are distributed in a ring to cooperate with the positioning member 4. The handle 1 drives the rotating seat 3 to rotate together. When it rotates to the point where one of the positioning grooves 320 corresponds to the positioning member 4, the positioning member 4 will automatically push into the positioning groove 320 under the elastic force of the spring 44 because the positioning member 4 has room to move forward. The base 2 is slidably provided with a locking member 5 for abutting the other end of the positioning member 4. At this time, the locking member 5 is slidably moved to abut the other end of the positioning member 4, so that the rear end of the positioning member 4 has no room to move backward and cannot slide out of the positioning groove 320, thereby achieving the locking effect. When unlocking, the locking member 5 can be slid open and moved away from the positioning member 4. This child lock structure acts on the pivot section 32 and does not affect the fork or square shaft structure, so that this child lock structure can be used with the fork structure or the square shaft structure.

[0024] This utility model discloses a universal child handle lock. Through the setting of the rotating base 3, the gear segment 33 on the rotating base 3 can be adapted to the shift fork, and the shaft hole 330 on the end face of the gear segment 33 can be adapted to the square shaft. This allows the handle lock structure to be used with either the shift fork or the square shaft. Simultaneously, the handle lock includes a child lock structure. The locking member 5, in conjunction with the positioning groove 320, abuts against both ends of the positioning member 4, preventing the positioning member 4 from sliding and thus achieving a locking effect. This child lock structure is also applicable to the shift fork or the square shaft, improving the versatility of the handle lock, reducing inventory pressure, and increasing the flexibility of use.

[0025] In this embodiment, the base 2 is provided with a receiving cavity 400, and the positioning member 4 is disposed in the receiving cavity 400 and slides radially within the receiving cavity 400 along the rotating shaft section 32. One end of the receiving cavity 400 is provided with a first opening 401 facing the rotating shaft section 32, and the other end is provided with a second opening 402 for the positioning member 4 to extend and retract. For details, please refer to [reference needed]. Figure 3 , 4 9. The base 2 has a groove and a connecting plate 222. The connecting plate 222 covers the groove to form a receiving cavity 400. The connecting plate 222 is snapped onto the base 2 for easy installation. First, the positioning member 4 and the spring 44 are placed in the groove, and then the connecting plate 222 is installed to cover them. The length of the receiving cavity 400 is shorter than that of the positioning member 4. When the positioning member 4 slides toward the rotating seat 3, it extends out of the first opening 401. When the positioning member 4 slides backward, it extends out of the second opening 402. The locking member 5 is located at the second opening 402 in the locked state, and then abuts against the second opening 402 to prevent the positioning member 4 from sliding backward.

[0026] The positioning element 4 is as follows Figure 5 The device includes a pin 41 and a top cap 42 that fits into the positioning groove 320. The spring 44 is sleeved on the outside of the pin 41, with one end of the spring 44 abutting against the top cap 42 and the other end abutting against the inner wall of the second opening 402. The positioning member 4 is held against the rotating shaft section 32 by the action of the spring 44.

[0027] In this embodiment, the base 2 has a slot 105 on its front side, the locking member 5 is disposed in the slot 105, and the locking member 5 has a pushing part 51 protruding from the slot 105 on its front side.

[0028] The back of the locking component 5 is provided with a ball bearing 50, which extends and retracts within the locking component 5 via a compression spring. The base 2 has two limiting recesses 500 that engage with the ball bearing 50, providing a positioning function for the locking component 5. Specifically, the two limiting recesses 500 are located on the side of the connecting plate 222 facing the slot 105, corresponding to the unlocked and locked states of the locking component 5. The locking component 5 slides towards one end of the slot 105. When the ball bearing 50 engages with the corresponding limiting recess 500 in the unlocked state, it is in the unlocked state, and the positioning component 4 can slide forward and backward. When the ball bearing 50 engages with the corresponding limiting recess 500 in the locked state, it is in the locked state, and the locking component 5 is positioned at the second opening 402, abutting against the positioning component 4 and preventing it from sliding backward. (See also...) Figure 7 , 9 The base 2 has lock and unlock markings near the slot 105 for easy access.

[0029] In this embodiment, a cover plate 102 is provided on the front of the base 2. The cover plate 102 is rotatably connected to the handle 1. The shape of the cover plate 102 corresponds to the base 2 and is used to cover the structure of the base 2 and the structure of the lock 5. The cover plate 102 is fastened to the base 2 and rotates about the axis of the handle 1. Under normal conditions, the cover plate 102 is fastened to the front of the base 2. When the lock 5 needs to be used, the cover plate 102 can be rotated open first.

[0030] In this embodiment, a shift fork is included. The shift fork is provided with a toothed plate 66 that meshes with the gear segment 33. The shift fork is an existing structure. It should be noted that the shift fork has a toothed plate 66 for meshing and transmission with the gear segment 33. In addition, the square shaft is also an existing structure and can be directly inserted into the shaft hole 330.

[0031] The above embodiments are preferred embodiments of this utility model. All structures similar to this utility model and equivalent changes thereof should fall within the protection scope of this utility model.

Claims

1. A universal child handle lock, characterized in that: The device includes a handle, a base, a rotating seat, and a positioning element. The rotating seat includes an embedded section, a rotating shaft section, and a gear section for driving and connecting a shift fork. The embedded section is connected to the handle. The end face of the gear section is provided with a shaft hole for mounting a square shaft. One end of the positioning element is elastically abutted against the outer curved surface of the rotating shaft section by a spring. At least two positioning grooves that mate with the positioning element are distributed in a ring on the outer curved surface of the rotating shaft section. The base is slidably provided with a locking element for abutting against the other end of the positioning element.

2. A universal child handle lock according to claim 1, characterized in that: The base has a receiving cavity, the positioning member is disposed in the receiving cavity and slides radially within the receiving cavity along the rotating shaft section, one end of the receiving cavity has a first opening facing the rotating shaft section, and the other end has a second opening for the positioning member to extend and retract.

3. A universal child handle lock according to claim 2, characterized in that: The positioning component includes a pin and a top cap that fits into the positioning groove. The spring is sleeved outside the pin, with one end of the spring abutting against the top cap and the other end abutting against the inner wall of the second opening.

4. A universal child handle lock according to claim 1, characterized in that: The base has a slot on its front side, the lock is disposed in the slot, and the front side of the lock has a pushing part protruding from the slot.

5. A universal child handle lock according to claim 4, characterized in that: The back of the lock is provided with a ball bearing, which extends and retracts within the lock via a compression spring. The base has two limiting recesses that cooperate with the ball bearing.

6. A universal child handle lock according to claim 4, characterized in that: The base is provided with a cover plate on the front, and the cover plate is rotatably connected to the handle.

7. A universal child handle lock according to claim 1, characterized in that: It includes a shift fork, which is provided with a toothed plate that meshes with the gear segment.

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