Door handle with child lock

Abstract

The door handle with the child lock comprises a handle shell, a clutch module, a control module and a rotating shell, the clutch module comprises a first connecting shaft and a clutch pin, the first connecting shaft comprises a first mounting hole, the clutch pin is movably located in the first mounting hole, and the control module comprises a pressing part and a transmission structure. The pressing part is located on the side, close to the door plate, of the handle shell, the transmission structure is located in the handle and is in transmission connection with the clutch module, the pressing part can drive the transmission structure to move under the action of external force and drive the clutch module to move, and the rotating shell is rotationally connected with the first connecting shaft and the door lock body and provided with a first groove position. At least part of the structure of the clutch pin can stretch into the first groove position from the first mounting hole so as to drive the rotating shell and the first connecting shaft to rotate synchronously. The technical scheme of the utility model has the function of preventing children from unlocking by mistake, is favorable for improving the anti-theft performance, reducing the occupied space and lowering the cost, and is suitable for more different anti-theft door lock scene requirements.

Description

Technical Field

[0001] This utility model relates to the field of door handle technology, and in particular to a door handle with a child lock. Background Technology

[0002] With increasing demands for home security, especially among consumers with children, there is a growing need for enhanced security in locks. Current smart locks typically employ video detection modules to prevent accidental opening by children. However, these systems are complex, space-consuming, and expensive, and rely heavily on internet and electronic technology. Power outages or system malfunctions can easily render the lock ineffective, failing to prevent theft and child entry. Utility Model Content

[0003] This utility model provides a door handle with a child lock, which has the function of preventing children from accidentally unlocking the door. This helps to improve anti-theft performance, reduce space occupation, reduce costs, and is suitable for more different anti-theft door lock scenarios.

[0004] This utility model provides a door handle with a child lock. The door handle with a child lock includes: a handle housing, a clutch module, a control module, and a rotating housing. The clutch module is disposed within the handle housing and includes a first connecting shaft and a clutch pin. The first connecting shaft includes a shaft body and a first mounting hole. The first mounting hole is disposed on the shaft body and arranged radially along the shaft body. The clutch pin is movably disposed within the first mounting hole. The control module includes a push-button part and a transmission structure. The push-button part is disposed on the side of the handle housing near the door panel. The transmission structure is disposed inside the handle housing and is drively connected to the clutch module. Under external force, the push-button part can drive the transmission structure to move, and in turn, drive the clutch module to move. The rotating housing is rotatably connected to the first connecting shaft and the door lock body. The rotating housing has a first groove, and at least a portion of the clutch pin can extend from the first mounting hole into the first groove to drive the rotating housing and the first connecting shaft to rotate synchronously.

[0005] This utility model's technical solution incorporates a clutch module and a control module within a door handle with a child lock. The control module includes a push-button and a transmission structure. The push-button is located on the handle housing near the door panel and drives the transmission structure, which in turn drives the clutch module. At least a portion of the clutch pin extends from the first mounting hole into the first slot to synchronously rotate the rotating housing and the first connecting shaft. By concealing the push-button within the handle, accidental opening by children is prevented, improving anti-theft performance. Furthermore, the child-locked door handle occupies less space and is less expensive. Additionally, the internal clutch module design enhances the reliability of the connection and separation between the first connecting shaft and the rotating housing, ensuring stable locking and unlocking operations and reducing the child-locked door handle's reliance on power and the internet.

[0006] According to the aforementioned embodiments of this utility model, the door handle with a child lock has an unlocked state and an anti-accidental opening state. In the unlocked state, the pressing part drives the transmission structure to move under the action of external force. The transmission structure drives the clutch module to move, so that at least a part of the clutch pin extends from the first mounting hole into the first slot of the rotating housing. The clutch pin is engaged in the first mounting hole and the first slot. The handle housing rotates and sequentially drives the first connecting shaft and the rotating housing to rotate. The rotating housing drives the door lock body to rotate. In the anti-accidental opening state, at least a part of the clutch pin retracts from the first slot into the first mounting hole, so that the first connecting shaft is disengaged from the rotating housing.

[0007] According to the foregoing embodiments of this utility model, the transmission structure includes: a transmission block, a pushing part, and a second connecting shaft. The transmission block is elastically connected to the pressing part, and the pressing part can push the transmission block to move under the action of external force. The pushing part is connected to the transmission block, and the transmission block can drive the pushing part to move in the horizontal direction. One end of the second connecting shaft is drivenly connected to the pushing part, and the other end is drivenly connected to the clutch module, and the second connecting shaft can drive the first connecting shaft to rotate.

[0008] According to the aforementioned embodiments of the present invention, the pushing part includes a guide channel, and the second connecting shaft has an eccentrically arranged protrusion. The protrusion can cooperate with and connect to the guide channel and move within the guide channel, so that the pushing part can drive the second connecting shaft to move.

[0009] According to the foregoing embodiments of this utility model, the control module includes: a first elastic member and a second elastic member. The first elastic member is elastically disposed between the pressing part and the transmission block. The second elastic member is elastically connected to the pushing part.

[0010] According to the foregoing embodiments of this utility model, the shaft body further includes a second mounting hole arranged along the axial direction. The clutch module further includes a switching block, which is disposed in the second mounting hole and synchronously rotates with the second connecting shaft. The switching block has a second groove arranged along the axial direction. Rotation of the switching block can push at least a portion of the clutch pin structure to move, so that the clutch pin is connected to or separated from the rotating housing.

[0011] According to the foregoing embodiments of this utility model, the door handle with child lock further includes a connecting rod. The connecting rod is connected between the door lock body and the rotating housing, and the connecting rod and the rotating housing can rotate synchronously.

[0012] According to the foregoing embodiments of this utility model, the clutch module further includes: a fixing block and a third elastic element. The fixing block is disposed between the first connecting shaft and the rotating housing. The third elastic element is disposed on the fixing block, and the third elastic element provides an elastic restoring force for the movement of the first connecting shaft.

[0013] According to the aforementioned embodiments of the present invention, the clutch pin includes a first part and a second part that are connected to each other. The first part can extend into the first slot through the first mounting hole, and the switching block rotates to push the second part to move.

[0014] According to the aforementioned embodiments of this utility model, a fourth elastic element is provided on the outside of the second part, and the fourth elastic element provides elastic restoring force for the movement of the clutch pin.

[0015] This utility model's technical solution conceals the push-button mechanism within the handle, enabling the child-locked door handle to have a child-proof anti-accidental unlocking function. Furthermore, the child-locked door handle utilizes a mechanical transmission structure between the control module and the clutch module for locking and unlocking, ensuring stable operation. This reduces the door handle's reliance on power and internet access, minimizes its footprint, lowers costs, and further enhances its anti-theft performance, making it suitable for a wider range of security door lock scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is an exploded structural diagram of an embodiment of the door handle with child lock according to this utility model;

[0018] Figure 2 This is an exploded view of the control module in one embodiment of the door handle with child lock of this utility model;

[0019] Figure 3 This is an exploded view of the clutch module in one embodiment of the door handle with child lock of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of an embodiment of the door handle with child lock according to the present invention in the unlocked state;

[0021] Figure 5 This is a cross-sectional structural diagram of an embodiment of the door handle with child lock of the present invention in the anti-accidental opening state.

[0022] Explanation of icon numbers:

[0023] Handle housing - 100, clutch module - 200, control module - 300, rotating housing - 400, connecting rod - 500, fixing component - 600;

[0024] Top cover - 110, base - 120, first connecting shaft - 210, clutch pin - 220, switching block - 230, fixing block - 240, third elastic element - 250, fourth elastic element - 260, bearing - 270, push part - 310, transmission structure - 320, first elastic element - 330, second elastic element - 340, first slot - 410;

[0025] Shaft body-211, first mounting hole-212, second mounting hole-213, first part-221, second part-222, second slot-231, transmission block-321, pushing part-322, second connecting shaft-323;

[0026] Guide channel - 3221, protrusion - 3231.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] 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.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] This utility model provides a door handle with a child lock, which has the function of preventing children from accidentally unlocking the door. This helps to improve anti-theft performance, reduce space occupation, reduce costs, and is suitable for more different anti-theft door lock scenarios.

[0032] like Figure 1 As shown, this utility model embodiment provides a door handle with a child lock. The door handle with a child lock includes: a handle housing 100, a clutch module 200, a control module 300, and a rotating housing 400.

[0033] like Figure 1 As shown, the handle housing 100 includes an upper cover 110 and a base 120. The upper cover 110 can cover the base 120 so that the base 120 has an installation space inside. The clutch module 200 and the control module 300 are respectively disposed in the installation space.

[0034] like Figure 1 As shown, the clutch module 200 is disposed inside the handle housing 100, as... Figure 3 The clutch module 200 shown includes a first connecting shaft 210 and a clutch pin 220. The first connecting shaft 210 includes a shaft body 211 and a first mounting hole 212. In this embodiment, two first mounting holes 212 are arranged opposite each other along the radial direction of the shaft body 211. The clutch pin 220 is movably disposed within the first mounting hole 212, and one clutch pin 220 is respectively disposed within each first mounting hole 212. Figure 3 As shown, the clutch pin 220 includes a first part 221 and a second part 222 connected to each other. A fourth elastic element 260 is disposed on the outside of the second part 222. The fourth elastic element 260 provides an elastic restoring force for the movement of the clutch pin 220. Preferably, the fourth elastic element 260 is a tower spring.

[0035] like Figure 1 as well as Figure 2 As shown, the control module 300 includes a push button 310 and a transmission structure 320. The push button 310 is located on the handle housing 100 near the door panel, and the transmission structure 320 is located inside the handle housing 100 and is connected to the clutch module 200. Under external force, the push button 310 can drive the transmission structure 320 to move, which in turn drives the clutch module 200 to move. It should be noted that the push button 310 is located on the handle housing 100 on the indoor side, which helps prevent children from accidentally unlocking the door from inside, further improving safety and anti-theft features.

[0036] like Figure 1 As shown, the rotating housing 400 is rotatably connected to the first connecting shaft 210 and the door lock body. The rotating housing 400 has a first groove 410. The first part 221 of the clutch pin 220 can extend into the first groove 410 through the first mounting hole 212 to drive the rotating housing 400 and the first connecting shaft 210 to rotate synchronously.

[0037] This utility model's technical solution incorporates a clutch module 200 and a control module 300 within a door handle with a child lock. The control module 300 includes a push-button part 310 and a transmission structure 320. The push-button part 310 is located on the handle housing 100 near the door panel. The push-button part 310 drives the transmission structure 320, which in turn drives the clutch module 200. The first part 221 of the clutch pin 220 extends from the first mounting hole 212 into the first slot 410 to drive the rotating housing 400 and the first connecting shaft 210 to rotate synchronously. By concealing the push-button part 310 within the handle housing 100, it helps prevent children from accidentally opening the handle, improving anti-theft performance. Furthermore, the child-locked door handle occupies less space and has a lower cost. Moreover, the internal clutch module 200 design enhances the reliability of the connection and separation between the first connecting shaft 210 and the rotating housing 400, ensuring the stability of the locking and unlocking operation and reducing the child-locked door handle's dependence on power and the internet.

[0038] like Figure 3 As shown, the shaft 211 also includes a second mounting hole 213 arranged axially. The clutch module 200 further includes a switching block 230, which is disposed in the second mounting hole 213 and synchronously rotatably connected to the second connecting shaft. The switching block 230 has a second slot 231 arranged axially. Figures 4 to 5 As shown, the rotation of the switching block 230 can push the second part 222 to move, squeezing the fourth elastic member 260, so that the first part 221 can extend into the first slot 410 through the first mounting hole 212, so that the clutch pin 220 is connected to the rotating housing 400, driving the first connecting shaft 210 and the rotating housing 400 to rotate synchronously.

[0039] like Figures 4 to 5 As shown, the door handle with child lock has an unlocked state and an anti-accidental opening state. In the unlocked state, the push part 310 drives the transmission structure 320 to move under the action of external force. The transmission structure 320 drives the clutch module 200 to move, so that the first part 221 of the clutch pin 220 extends from the first mounting hole 212 into the first slot 410 of the rotating housing 400. The clutch pin 220 is engaged in the first mounting hole 212 and the first slot 410. The handle housing 100 rotates and drives the first connecting shaft 210 and the rotating housing 400 to rotate in sequence. The rotating housing 400 drives the door lock body to rotate. In the anti-accidental opening state, the first part 221 of the clutch pin 220 retracts from the first slot 410 into the first mounting hole 212, so that the first connecting shaft 210 is disengaged from the rotating housing 400.

[0040] like Figure 2As shown, the transmission structure 320 includes a transmission block 321, a pushing part 322, and a second connecting shaft 323. The transmission block 321 is elastically connected to the pressing part 310, and the pressing part 310 can push the transmission block 321 to move under the action of external force. The pushing part 322 is connected to the transmission block 321, and the transmission block 321 can drive the pushing part 322 to move in the horizontal direction. One end of the second connecting shaft 323 is drivenly connected to the pushing part 322, and the other end is drivenly connected to the clutch module 200. The second connecting shaft 323 can drive the first connecting shaft 210 to rotate.

[0041] like Figure 2 As shown, the pushing part 322 includes a guide channel 3221, and the second connecting shaft 323 has an eccentrically arranged protrusion 3231. The protrusion 3231 can cooperate with and move within the guide channel 3221. When the transmission block 321 drives the pushing part 322 to move horizontally, the cooperation between the guide channel 3221 and the protrusion 3231 converts the horizontal movement of the pushing part 322 into the rotational movement of the second connecting shaft 323, thus enabling the pushing part 322 to drive the second connecting shaft 323 to rotate. The compact structure between the pushing part 322 and the second connecting shaft 323 is beneficial for improving the space utilization inside the door handle with child lock.

[0042] like Figure 2 As shown, the control module 300 includes a first elastic element 330 and a second elastic element 340. The first elastic element 330 is elastically disposed between the pressing part 310 and the transmission block 321. The second elastic element 340 is elastically connected to the pushing part 322. Preferably, the first elastic element 330 is a spring and the second elastic element 340 is a tension spring. When the first elastic element 330 is released, the pressing part 310 drives the transmission block 321 to rebound, at which time the elastic force of the second elastic element 340 can drive the pushing part 322 to reset.

[0043] like Figure 1 As shown, the door handle with child lock also includes a connecting rod 500. The connecting rod 500 is connected between the door lock body and the rotating housing 400, and the connecting rod 500 and the rotating housing 400 can rotate synchronously. In this application, the connecting rod 500 is a square rod, which can be matched and connected to the square hole in the middle of the door lock body. One end of the square rod is connected to the rotating housing 400, and the other end is connected to the square hole in the door lock body, thereby driving the middle structure of the door lock body to unlock.

[0044] like Figure 1As shown, the clutch module 200 further includes a fixing block 240 and a third elastic element 250. The fixing block 240 is disposed between the first connecting shaft 210 and the rotating housing 400. The third elastic element 250 is disposed on the fixing block 240, and provides elastic restoring force for the movement of the first connecting shaft 210, and can provide a reset torque for the handle housing 100 after rotation. Preferably, the third elastic element 250 is a torsion spring. When the handle housing 100 rotates, the third elastic element 250 generates a torque in the opposite direction, storing energy. After this torque is released, it will push the handle housing 100 back to its initial position, realizing the automatic reset function of the handle housing 100. Whether rotated clockwise or counterclockwise, it can automatically return to its original position through the action of the third elastic element 250. The fixing block 240 is used to provide installation space for the third elastic element 250, preventing the rotating housing 400 or the first connecting shaft 210 from directly contacting the third elastic element 250 during rotation, thereby increasing resistance and improving the smoothness of rotation of the rotating housing 400 and the first connecting shaft 210.

[0045] like Figure 1 As shown, the clutch module 200 also includes a bearing 270. The bearing 270 is disposed between the handle housing 100 and the rotating housing 400, which helps to make the rotation between the handle housing 100 and the rotating housing 400 smoother, reduces the frictional resistance between the handle housing 100 and the rotating housing 400, ensures that the handle housing 100 can rotate easily and smoothly, extends the service life of the door handle with child lock, reduces wear, and improves the durability of the door handle with child lock.

[0046] like Figure 1 As shown, the door handle with child lock also includes a fixing member 600, which can fix the handle housing 100, rotating housing 400 and other structures to the door panel.

[0047] The following describes the specific locking and unlocking process of a door handle with a child lock.

[0048] When it is necessary to unlock the door handle with child lock, pressing the actuating part 310 causes the transmission block 321 to be pushed out under the elastic force of the first elastic member 330. The push-out of the transmission block 321 drives the pushing part 322 to slide horizontally. The protrusion 3231 of the second connecting shaft 323 can cooperate with and move within the guide channel 3221 of the pushing part 322, so that the pushing part 322 can drive the second connecting shaft 323 to rotate. The second connecting shaft 323 drives the switching block 230 to rotate, pushing the second part 222 of the clutch pin 220 away from the second slot 231. The first part 221 of the clutch pin 220 can be locked between the first connecting shaft 210 and the rotating housing 400, so that the first connecting shaft 210 and the rotating housing 400 rotate synchronously. At this time, rotating the handle housing 100 can drive the rotating housing 400 to rotate, thus unlocking the door handle with child lock.

[0049] When the push button 310 is not pressed, the door handle with child lock is in the anti-accidental opening state. The first part 221 of the clutch pin 220 retracts into the first mounting hole 212, causing the first connecting shaft 210 to disengage from the rotating housing 400. At this time, rotating the handle housing 100 cannot drive the rotating housing 400 to rotate, and the door handle with child lock cannot be unlocked.

[0050] This utility model's technical solution conceals the push-button 310 within the handle housing 100, enabling the child-locked door handle to have a child-proof anti-accidental unlocking function. Furthermore, the child-locked door handle uses a mechanical transmission structure 320 between the control module 300 and the clutch module 200 to lock and unlock, ensuring stable locking and unlocking operations. This reduces the child-locked door handle's dependence on power and the internet, minimizes its footprint, lowers costs, and further enhances its anti-theft performance, making it suitable for a wider range of anti-theft door lock scenarios.

[0051] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A door handle with a child lock, characterized in that, include: Handle casing; A clutch module is disposed inside the handle housing. The clutch module includes a first connecting shaft and a clutch pin. The first connecting shaft includes a shaft body and a first mounting hole. The first mounting hole is disposed on the shaft body and is arranged in the radial direction of the shaft body. The clutch pin is movably disposed in the first mounting hole. The control module includes a push part and a transmission structure. The push part is located on the side of the handle housing near the door panel. The transmission structure is located inside the handle housing and is connected to the clutch module. Under the action of external force, the push part can drive the transmission structure to move and drive the clutch module to move. as well as The rotating housing is rotatably connected to the first connecting shaft and the door lock body. The rotating housing has a first groove. At least a portion of the clutch pin can extend from the first mounting hole into the first groove to drive the rotating housing and the first connecting shaft to rotate synchronously.

2. The door handle with child lock as described in claim 1, characterized in that, The door handle with child lock has an unlocked state and an anti-accidental opening state. In the unlocked state, the push part drives the transmission structure to move under the action of external force. The transmission structure drives the clutch module to move, so that at least a part of the clutch pin extends from the first mounting hole to the first slot of the rotating housing. The clutch pin is locked in the first mounting hole and the first slot. The handle housing rotates and drives the first connecting shaft and the rotating housing to rotate in sequence. The rotating housing drives the door lock body to rotate. In the anti-accidental opening state, at least a portion of the clutch pin retracts from the first slot into the first mounting hole, causing the first connecting shaft to disengage from the rotating housing.

3. The door handle with child lock as described in claim 2, characterized in that, The transmission structure includes: A transmission block is elastically connected to the pressing part, and the pressing part can push the transmission block to move under the action of external force; A pushing unit, connected to the transmission block, wherein the transmission block is capable of driving the pushing unit to move horizontally; and The second connecting shaft has one end connected to the pushing part and the other end connected to the clutch module. The second connecting shaft can drive the first connecting shaft to rotate.

4. The door handle with child lock as described in claim 3, characterized in that, The pushing part includes a guide channel, and the second connecting shaft has an eccentrically arranged protrusion. The protrusion can cooperate with and connect to the guide channel and move within the guide channel, so that the pushing part can drive the second connecting shaft to move.

5. The door handle with child lock as described in claim 3, characterized in that, The control module includes: A first elastic element, elastically disposed between the pressing part and the transmission block; and The second elastic element is elastically connected to the pushing part.

6. The door handle with child lock as described in claim 3, characterized in that, The shaft also includes a second mounting hole arranged axially, and the clutch module further includes: A switching block is disposed in the second mounting hole and is synchronously rotatably connected to the second connecting shaft. The switching block has a second groove arranged along the axial direction. Rotation of the switching block can push at least a portion of the structure of the clutch pin to move, so that the clutch pin is connected to or separated from the rotating housing.

7. The door handle with child lock as described in claim 2, characterized in that, The door handle with child lock also includes: A connecting rod is provided, which connects the door lock body and the rotating housing, and the connecting rod and the rotating housing can rotate synchronously.

8. The door handle with child lock as described in claim 2, characterized in that, The clutch module also includes: A fixing block, wherein the fixing block is disposed between the first connecting shaft and the rotating housing; and A third elastic element is disposed on the fixed block, and the third elastic element provides elastic restoring force for the movement of the first connecting shaft.

9. The door handle with child lock as described in claim 6, characterized in that, The clutch pin includes a first part and a second part that are connected to each other. The first part can extend into the first slot through the first mounting hole, and the switching block rotates to push the second part to move.

10. The door handle with child lock as described in claim 9, characterized in that, The second part is externally provided with a fourth elastic element, which provides elastic restoring force for the movement of the clutch pin.

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