Child safety type one-key quick door handle opening preventer

Abstract

The utility model provides a child safety type one-key fast door handle opening preventer which comprises a lock seat, a lock handle arranged on the lock seat in a rotating mode around a shaft, a first lock piece and a second lock piece, the first lock piece and the second lock piece are used for controlling the lock handle to rotate relative to the lock seat for unlocking and locking respectively, and an installation ring is fixedly arranged on the lock seat. The first lock part is axially and movably arranged in an inner hole of the mounting ring, a pair of rotating rings used for driving the first lock part to rotate along with the lock handle is fixedly arranged at the lower end of the lock handle, the rotating rings are arranged on the two sides of the mounting ring respectively and correspondingly arranged at the two ends of the first lock part in a sleeving mode, and a plurality of caulking grooves are distributed in the inner hole wall of one side of the mounting ring in the circumferential direction. The first locking piece is correspondingly provided with clamping parts used for being alternately clamped into the caulking grooves, the first locking piece is provided with an automatic clamping-in driving mechanism used for driving the clamping parts to be automatically clamped into the caulking grooves, and the first locking piece is provided with a rotary unlocking mechanism capable of enabling the clamping parts to rotate to be separated from the caulking grooves when the lock handle rotates towards the upper locking side. The door handle opening preventer has the functions of one-key quick locking and child safety protection.

Description

Technical Field

[0001] The utility model relates to the technical field of door lock safety devices, in particular to a child-safe one-button quick door handle stopper. Background Art

[0002] In modern homes and public places, handle locks are commonly used to control interior doors due to their ease of operation, especially in private spaces such as bedroom doors where privacy needs to be protected. However, for child users, handle locks may pose a safety risk - careless operation may cause finger injuries, or children may be accidentally locked indoors. The usual solution is to deploy a door handle blocking device to limit its rotation to reduce safety risks.

[0003] In the existing technical solutions, various designs of door handle blocking devices have emerged. For example, a device disclosed in Chinese utility model patent CN209874682U consists of a base, a swinging member swingable relative to the base, and a first and a second locking mechanism for controlling the rotation of the swinging member. This design adopts a complex structural form to achieve double locking to improve safety during use. However, such a design brings inconvenience to the locking process - the user must first unlock the two locking mechanisms before rotating the swinging member to lock it. The operation is cumbersome and time-consuming. In order to simplify the operation, the designer introduced a design of setting an inclined surface in the second locking mechanism tooth, but this also caused a new problem: once the first locking mechanism fails to switch from the unlocked state to the locked state in time, the child can automatically unlock the second locking mechanism by pulling the swinging member and complete the locking operation of the swinging member. Once the swinging member is locked, it is rotated in the opposite direction to unlock it, thereby creating a risk of locking the child in the house.

[0004] In view of the problems existing in the existing design, it is urgent to develop a door handle blocking device with an innovative design. This new device should be designed to simplify the locking steps and ensure the safety of children when operating it. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned technical problems and provide a child-safe one-button quick door handle blocker which can not only lock the door quickly with one button, but also effectively prevent safety risks caused by children's misoperation of the door handle.

[0006] To solve the above problems, the utility model provides a child-safe one-touch quick door handle blocker, comprising a lock seat, a lock handle rotatably arranged on the lock seat, and a first lock member and a second lock member for respectively controlling the lock handle to rotate, unlock and lock relative to the lock seat, a mounting ring being fixedly provided on the lock seat, the first lock member being axially movably arranged in the inner hole of the mounting ring, a pair of rotating circles being fixedly provided at the lower end of the lock handle for driving the first lock member to rotate together with the lock handle, the pair of rotating circles being arranged on both sides of the mounting ring and correspondingly sleeved on both ends of the first lock member, a plurality of embedding grooves being circumferentially distributed on the inner hole wall on one side of the mounting ring, a clamping portion for alternately engaging with the embedding groove being correspondingly provided on the first lock member, an automatic engaging driving mechanism for driving the clamping portion to automatically engage with the embedding groove being provided on the first lock member, and a rotation unlocking mechanism being provided on the first lock member for causing the clamping portion to rotate out of the embedding groove when the lock handle is rotated to the upper locking side.

[0007] Compared with the prior art, the utility model is beneficial in that: the utility model utilizes a unique one-key quick design. When locking, the second lock piece is unlocked and then the lock handle is rotated. The rotation unlocking mechanism on the first lock piece is used to automatically unlock the first lock piece, so that one-key quick locking can be achieved. For people who know the opening method of this door handle blocker, the opening operation is very convenient. However, for children and pets who do not know the opening method of this door handle blocker and are mentally deficient, no matter how the children and pets press the door handle blocker randomly, it is almost impossible to open the door handle blocker. The probability of children and pets randomly pressing the door handle blocker to open it is almost zero, which can effectively prevent children and pets from opening the door, and prevent children from locking themselves in the house due to misoperation of the lock, truly achieving both one-key quick locking and child safety protection. When unlocking, it is necessary to press the first lock piece with one hand to unlock it, and unlock the second lock piece with the other hand while turning the lock handle to rotate and unlock it, which greatly increases the difficulty of the unlocking operation, thereby avoiding the risk of children accidentally unlocking the door.

[0008] As an improvement, the first lock element includes a first button and a second button, the clamping portion is axially extended and arranged on the first button, the inner end of the first button is provided with a plug hole, the inner end of the second button is provided with a corresponding plug rod, part of the plug rod is inserted into the plug hole and is tightly fixed with the hole wall of the plug hole. After applying this structure, the split assembly structure design of the first lock element is convenient for the processing and manufacturing of the first lock element and the assembly of the entire door handle blocker.

[0009] Specifically, the automatic snap-in drive mechanism is a compression spring sleeved on the insertion rod, one end of the compression spring is fixed to the second button, and the other end of the compression spring is against the other side wall of the mounting ring. After the structure is applied, the elastic force of the compression spring, on the one hand, pushes the second button on the opposite side of the mounting ring outward, and on the other hand, pulls the first button on one side of the mounting ring inward. Such forces work together to make the clamping part on the first button easily snap into the groove on the mounting ring. This design cleverly converts the tension of the compression spring on one side of the mounting ring into the thrust on the other side, thereby realizing the automatic locking of the first lock, and thereby ensuring that the first lock presents the advantages of simple structure, small size and compact layout.

[0010] Specifically, the rotation unlocking mechanism is an inclined guide surface arranged at the inner end of the clamping part, which is arranged toward the locking side of the lock handle and is pressed and matched with a groove wall of one side of the embedded groove. After the structure is applied, the clamping part of the first lock member is pressed and matched with the groove wall of the embedded groove on the mounting ring by the inclined guide surface arranged at its inner end, so that when the lock handle rotates in the locking direction, the automatic unlocking mechanism of the first lock member can be triggered, and if the lock handle rotates in the opposite direction, the first lock member will not be automatically unlocked, thereby ensuring the unidirectionality and safety of the unlocking process.

[0011] Specifically, a pair of rotating circles includes a first rotating circle corresponding to the first button and a second rotating circle corresponding to the second button. The first button is axially movable in the inner hole of the first rotating circle, and the second button is axially movable in the inner hole of the second rotating circle. A through groove running through the inner and outer ends of the first rotating circle is provided on the inner hole wall of the first rotating circle, and the clamping part is axially movable and embedded in the through groove. After applying this structure, the clamping part of the first button and the through groove of the first rotating circle are effectively matched, ensuring that the rotation of the lock handle can smoothly drive the first lock piece to rotate synchronously. Due to the special structure of the through groove, the first lock piece can not only rotate with the lock handle, but also can move axially in the inner holes of the first rotating circle and the second rotating circle and the inner hole of the mounting circle. This mechanism ensures that the user can easily switch the first lock piece between the locked state and the unlocked state by pressing it from both sides, which is easy and efficient to operate.

[0012] Specifically, a plurality of limit grooves corresponding to the embedding grooves are circumferentially distributed on the outer ring of the mounting ring, and the second locking member is arranged on the lock handle. The second locking member includes a lock tongue for alternately engaging in the limit grooves, an elastic member for driving the lock tongue to move downward and automatically engage in the limit grooves, and a pair of pressing blocks for driving the lock tongue to move upward and disengage from the limit grooves. The lock handle is provided with a accommodating cavity with openings at the bottom and both sides. The lock tongue is movably arranged in the accommodating cavity up and down and its lower end extends downward from the bottom opening of the accommodating cavity. The elastic member is arranged in the accommodating cavity and its two ends are respectively abutted against the upper end of the lock tongue and the top cavity wall of the accommodating cavity. A pair of pressing blocks are correspondingly arranged in the openings on both sides of the accommodating cavity, each pressing block has a first inclined surface, and the lock tongue has a second inclined surface which is arranged corresponding to the first inclined surface and can be squeezed and matched with the first inclined surface to drive the lock tongue to move upward. After applying this structure, the lower end of the lock tongue automatically snaps into the limiting groove on the mounting ring through the mutual cooperation of the lock tongue and the elasticity, thereby achieving the purpose of controlling the lock handle to rotate and lock relative to the lock seat by the second lock piece; at the same time, the second lock piece is unlocked by squeezing and fitting the first inclined surface on the push block and the second inclined surface on the lock tongue, thereby achieving the purpose of controlling the lock handle to rotate and unlock relative to the lock seat by the second lock piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a three-dimensional diagram of the utility model;

[0015] Figure 3 It is a cross-sectional view of the utility model;

[0016] Figure 4 It is an exploded view of the utility model;

[0017] Figure 5 This is the first stereoscopic view of the base in the utility model;

[0018] Figure 6 This is the second stereoscopic view of the base in the utility model.

[0019] Figure 7 It is a structural schematic diagram of the lock handle in the utility model.

[0020] Description of reference numerals:

[0021] 1. Lock seat; 2. Lock handle; 20. Accommodating cavity; 21. First rotating circle; 210. Through groove; 22. Second rotating circle; 3. First locking element; 30. Clamping part; 301. Inclined guide surface; 31. First button; 310. Insertion hole; 32. Second button; 320. Insert rod; 33. Compression spring; 4. Second locking element; 41. Lock tongue; 42. Elastic element; 43. Push block; 5. Mounting ring; 51. Embedded groove; 52. Limiting groove; 61. First inclined surface; 62. Second inclined surface. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 7 As shown, in the utility model, the child-safe one-touch quick door handle blocker comprises a lock seat 1, a lock handle 2 rotatably arranged on the lock seat 1, and a first lock member 3 and a second lock member 4 for respectively controlling the lock handle 2 to rotate and lock relative to the lock seat 1. A mounting ring 5 is fixedly arranged on the lock seat 1, and the first lock member 3 is axially movably arranged in the inner hole of the mounting ring 5. A pair of rotating circles for driving the first lock member 3 to rotate with the lock handle 2 are fixedly arranged at the lower end of the lock handle 2. The pair of rotating circles are arranged on both sides of the mounting ring 5 and are correspondingly sleeved on both ends of the first lock member 3. A plurality of embedding grooves 51 are circumferentially distributed on the inner hole wall of one side of the mounting ring 5. A clamping portion 30 for alternately engaging with the embedding groove 51 is correspondingly provided on the first lock member 3. An automatic engaging driving mechanism for driving the clamping portion 30 to automatically engage with the embedding groove 51 is provided on the first lock member 3, and a rotation unlocking mechanism is provided on the first lock member 3 for rotating the clamping portion 30 out of the embedding groove 51 when the lock handle 2 is rotated to the upper locking side.

[0024] The present invention is advantageous in that: the present invention utilizes a unique one-key quick design. When the door is locked, the lock handle 2 is rotated after unlocking the second lock element 4, and the first lock element 3 is automatically unlocked by the rotation unlocking mechanism on the first lock element 3, so as to realize one-key quick locking. For people who know the opening method of the door handle blocker, the opening operation is very convenient. However, for children and pets who do not know the opening method of the door handle blocker and have insufficient intelligence, no matter how the children and pets press the door handle blocker randomly, it is almost impossible to open the door handle blocker. The probability of children and pets randomly pressing the door handle blocker to open the door handle is almost zero, which can effectively prevent children and pets from opening the door, and prevent children from locking themselves in the house due to misoperation of the lock, so as to truly achieve the dual consideration of one-key quick locking and child safety protection. When unlocking the door, it is necessary to press the first lock element 3 with one hand to unlock it, and unlock the second lock element 4 with the other hand while turning the lock handle 2 to rotate and unlock it, which greatly increases the difficulty of the unlocking operation, thereby avoiding the risk of children accidentally unlocking the door.

[0025] like Figure 2 and Figure 3As shown, the first lock 3 includes a first button 31 and a second button 32, the clamping portion 30 is axially extended and arranged on the first button 31, the inner end of the first button 31 is provided with a plug hole 310, the inner end of the second button 32 is provided with a corresponding plug rod 320, and a portion of the plug rod 320 is inserted into the plug hole 310 and is tightly fixed with the hole wall of the plug hole 310. After applying this structure, the split assembly structure design of the first lock 3 is convenient for the processing and manufacturing of the first lock 3 and the assembly of the entire door handle blocker.

[0026] like Figure 3 and Figure 4 As shown, the automatic snap-in driving mechanism is a compression spring 33 sleeved on the insertion rod 320, one end of the compression spring 33 is fixed to the second button 32, and the other end of the compression spring 33 abuts against the other side wall of the mounting ring 5. After the structure is applied, the elastic force of the compression spring 33, on the one hand, pushes the second button 32 on the opposite side of the mounting ring 5 outward, and on the other hand, pulls the first button 31 on one side of the mounting ring 5 inward. Such forces work together to make the clamping portion 30 on the first button 31 easily snap into the embedded groove 51 on the mounting ring 5. This design ingeniously converts the pulling force of the compression spring 33 on one side of the mounting ring 5 into the thrust force on the other side, thereby realizing the automatic locking of the first lock 3, and thereby ensuring that the first lock 3 presents the advantages of simple structure, small size and compact layout.

[0027] like Figures 3 to 5 As shown, the rotation unlocking mechanism is an inclined guide surface 301 arranged at the inner end of the clamping portion 30, and the inclined guide surface 301 is arranged toward the locking side of the lock handle 2 and is pressed and matched with a groove wall of one side of the embedded groove 51. After applying this structure, the clamping portion 30 of the first lock member 3 is pressed and matched with the groove wall of the embedded groove 51 on the mounting ring 5 by the inclined guide surface 301 arranged at its inner end, so that when the lock handle 2 rotates in the locking direction, the automatic unlocking mechanism of the first lock member 3 can be triggered, and if the lock handle 2 rotates in the opposite direction, the first lock member 3 will not be automatically unlocked, thereby ensuring the unidirectionality and safety of the unlocking process.

[0028] like Figure 3 , Figure 4 and Figure 7As shown, a pair of rotating circles includes a first rotating circle 21 corresponding to the first button 31 and a second rotating circle 22 corresponding to the second button 32. The first button 31 is axially movable in the inner hole of the first rotating circle 21, and the second button 32 is axially movable in the inner hole of the second rotating circle 22. A through groove 210 penetrating the inner and outer ends of the first rotating circle 21 is provided on the inner hole wall, and the clamping part 30 is axially movable and embedded in the through groove 210. After applying this structure, the clamping part 30 of the first button 31 effectively cooperates with the through groove 210 of the first rotating circle 21, ensuring that the rotation of the lock handle 2 can smoothly drive the first lock member 3 to rotate synchronously. Due to the special structure of the through groove 210, the first lock member 3 can not only rotate with the lock handle 2, but also can move axially in the inner holes of the first rotating circle 21 and the second rotating circle 22 and the inner hole of the mounting circle 5. This mechanism ensures that the user can easily switch between the locked state and the unlocked state by pressing the first lock member 3 from both sides, which is easy and efficient to operate.

[0029] like Figures 3 to 6 As shown, the outer ring of the mounting ring 5 is circumferentially distributed with a plurality of limiting grooves 52 corresponding to the embedding grooves 51, the second locking member 4 is arranged on the lock handle 2, and the second locking member 4 includes a lock tongue 41 for alternately snapping into the limiting groove 52, an elastic member 42 for driving the lock tongue 41 to move downward and automatically snap into the limiting groove 52, and a pair of pressing blocks 43 for driving the lock tongue 41 to move upward and out of the limiting groove 52, and the lock handle 2 is provided with a receiving cavity 20 with openings at the bottom and both sides, and the lock tongue 41 can move up and down The elastic member 42 is disposed in the accommodating cavity 20 and its lower end extends downward from the bottom opening of the accommodating cavity 20. The elastic member 42 is disposed in the accommodating cavity 20 and its two ends respectively abut against the upper end of the locking tongue 41 and the top cavity wall of the accommodating cavity 20. A pair of pressing blocks 43 are correspondingly disposed in the openings on both sides of the accommodating cavity 20. Each pressing block 43 has a first inclined surface 61. The locking tongue 41 has a second inclined surface 62 that is disposed corresponding to the first inclined surface 61 and can be pressed and matched with the first inclined surface 61 to drive the locking tongue 41 to move upward. Specifically, the elastic member 42 can be a spring or a rubber member. After applying this structure, through the mutual cooperation of the lock tongue 41 and the elasticity, the lower end of the lock tongue 41 is automatically snapped into the limiting groove 52 on the mounting ring 5, thereby achieving the purpose of controlling the lock handle 2 to rotate and lock relative to the lock seat 1 through the second lock member 4; at the same time, the second lock member 4 is unlocked by the first inclined surface 61 on the pressing block 43 and the second inclined surface 62 on the lock tongue 41, thereby achieving the purpose of controlling the lock handle 2 to rotate and unlock relative to the lock seat 1 through the second lock member 4.

[0030] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A child-safe one-touch quick door handle blocker, comprising a lock base (1), a lock handle (2) rotatably arranged on the lock base (1), and a first lock member (3) and a second lock member (4) for respectively controlling the lock handle (2) to rotate relative to the lock base (1) to unlock and lock, wherein the lock base (1) is fixedly provided with a mounting ring (5), the first lock member (3) is axially movably arranged in the inner hole of the mounting ring (5), a pair of rotating rings for driving the first lock member (3) to rotate along with the lock handle (2) are fixedly provided at the lower end of the lock handle (2), the pair of rotating rings are arranged on both sides of the mounting ring (5) and are correspondingly sleeved on both ends of the first lock member (3), a plurality of embedded grooves (51) are circumferentially distributed on the inner hole wall of one side of the mounting ring (5), and a clamping portion (30) for alternately clamping into the embedded grooves (51) is correspondingly provided on the first lock member (3), characterized in that: The first locking member (3) is provided with an automatic snap-in drive mechanism for driving the snap-in portion (30) to automatically snap-in into the embedding groove (51), and the first locking member (3) is provided with a rotation unlocking mechanism for enabling the snap-in portion (30) to rotate out of the embedding groove (51) when the lock handle (2) is rotated toward the upward locking side.

2. The child-safe one-touch quick door handle stopper according to claim 1, characterized in that: The first locking element (3) comprises a first button (31) and a second button (32); the clamping portion (30) is axially extended on the first button (31); an insertion hole (310) is provided at the inner end of the first button (31); a corresponding insertion rod (320) is provided at the inner end of the second button (32); a portion of the insertion rod (320) is inserted into the insertion hole (310) and is tightly fitted and fixed to the hole wall of the insertion hole (310).

3. The child-safe one-touch quick door handle stopper according to claim 2, characterized in that: The automatic snap-in drive mechanism is a compression spring (33) sleeved on the insertion rod (320), one end of the compression spring (33) is fixed to the second button (32), and the other end of the compression spring (33) abuts against the other side wall of the installation ring (5).

4. The child-safe one-touch quick door handle stopper according to claim 3, characterized in that: The rotation unlocking mechanism is an inclined guide surface (301) arranged at the inner end of the clamping portion (30), the inclined guide surface (301) being arranged towards the locking side of the lock handle (2) and being pressed and matched with a side wall of the embedding groove (51).

5. The child-safe one-touch quick door handle stopper according to claim 2, characterized in that: The pair of rotating circles comprises a first rotating circle (21) arranged corresponding to the first button (31) and a second rotating circle (22) arranged corresponding to the second button (32); the first button (31) is axially movably arranged in the inner hole of the first rotating circle (21); the second button (32) is axially movably arranged in the inner hole of the second rotating circle (22); a through groove (210) penetrating through the inner and outer ends of the first rotating circle (21) is provided on the inner hole wall of the first rotating circle (21); the clamping portion (30) is axially movably embedded in the through groove (210).

6. The child-safe one-touch quick door handle stopper according to claim 1, characterized in that: A plurality of limiting grooves (52) are circumferentially distributed on the outer ring of the mounting ring (5) and are arranged corresponding to the embedding grooves (51). The second locking member (4) is arranged on the lock handle (2). The second locking member (4) comprises a locking tongue (41) for alternately engaging with the limiting grooves (52), an elastic member (42) for driving the locking tongue (41) to move downward and automatically engage with the limiting grooves (52), and a pair of pressing blocks (43) for driving the locking tongue (41) to move upward and disengage from the limiting grooves (52). The lock handle (2) is provided with a receiving cavity (20) having openings at the bottom and two sides. The locking tongue (41) is movable up and down. The elastic member (42) is arranged in the accommodating cavity (20) and its lower end extends downward from the bottom opening of the accommodating cavity (20); the elastic member (42) is arranged in the accommodating cavity (20) and its two ends respectively abut against the upper end of the locking tongue (41) and the top cavity wall of the accommodating cavity (20); a pair of pressing blocks (43) are correspondingly arranged in the two side openings of the accommodating cavity (20); each of the pressing blocks (43) has a first inclined surface (61); and the locking tongue (41) has a second inclined surface (62) which is arranged corresponding to the first inclined surface (61) and can be pressed and matched with the first inclined surface (61) to drive the locking tongue (41) to move upward.

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