Window and door handle with self-locking structure

Abstract

The utility model discloses a window and door handle with a self-locking structure, which comprises a handle and a mounting base, a sleeve is protruded on the mounting base, a sleeve cavity matched with the sleeve is arranged on the back of the handle, a rotating shaft is arranged in the sleeve cavity, the sleeve is sleeved in the handle through the sleeve cavity, and the handle is provided with a self-locking structure. The rotating shaft penetrates into the sleeve to achieve rotating connection of the handle and the installation base, the installation height between the handle and the installation base is reduced through nested assembly of the sleeve cavity and the sleeve, arrangement of the locking mechanism is achieved through rotating fit installation of the sleeve cavity and the sleeve, and the handle is provided with a clamping pin assembly penetrating into the sleeve cavity. A clamping groove is formed in the sleeve, the clamping pin assembly is provided with a clamping pin capable of elastically stretching out and drawing back, the clamping pin is matched with the clamping groove, namely the clamping pin is automatically clamped into the clamping groove to limit rotation of the handle, automatic locking of the handle is achieved, and the situation that the handle is not locked due to misoperation or forgetting of a user is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of windows and doors, in particular to a window door handle with a self-locking structure. Background Art

[0002] Generally, a handle is provided on a window or door to realize the operation of unlocking and opening the window or door. The existing handle is installed on the window or door through a base, and the handle can rotate relative to the base to lock or unlock the window or door. And for high-rise floors, a locking mechanism is provided on the handle, and the locking mechanism needs to be operated before opening the window to further rotate the handle to open the window, preventing children from easily operating the handle to open the window and causing danger. However, at present, the locking mechanisms on the handles all require users to operate to lock. Once the user misoperates or forgets to lock the handle through the locking mechanism, there is a risk that children can easily open the window or door. On the other hand, at present, the structure of the locking mechanism is relatively complex, resulting in the handle structure being prone to becoming bulky, thick and high. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a window door handle with a self-locking structure.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A window door handle with a self-locking structure includes a handle and a mounting base. The mounting base protrudes with a sleeve. A sleeve cavity cooperating with the sleeve is provided on the back of the handle. A rotating shaft is provided in the sleeve cavity. The handle sleeved the sleeve into it through the sleeve cavity. The rotating shaft penetrates into the sleeve to realize the rotational connection between the handle and the mounting base. And a pin assembly penetrating into the sleeve cavity is provided on the handle. A positioning groove is provided on the sleeve. The pin assembly is provided with an elastically telescopic positioning pin cooperating with the positioning groove to limit the rotation of the handle.

[0006] The pin assembly is connected through the side wall of the sleeve cavity, and the positioning groove is provided on the side wall of the sleeve.

[0007] The pin assembly is arranged below the gripping part of the handle.

[0008] The pin assembly includes a mounting shell, a spring and the positioning pin. A channel for the positioning pin to movably penetrate through is formed in the mounting shell. The positioning pin is sleeved with the spring and installed in the channel, and the elastic telescopic movement of the positioning pin is realized through the spring.

[0009] One end of the positioning pin is snapped into the positioning groove, and the other end is connected with a handheld part located outside the handle.

[0010] A clamping groove penetrates out to the bottom of the sleeve at the bottom end of the rotating shaft, and a circlip is installed on the clamping groove.

[0011] The rotating shaft is provided with a threaded hole, and the bottom of the sleeve penetrates a screw assembly and is fixedly connected to the threaded hole.

[0012] A tongue is provided on the side of the handle, and a cushion block corresponding to the tongue is provided on the door and window frame.

[0013] A transmission hole for inserting a transmission shaft is provided on the rotating shaft.

[0014] A marble mechanism is further provided on the handle. The marble mechanism includes marbles elastically penetrating into the sleeve cavity, and the sleeve is provided with a limit sinking groove cooperating with the marbles.

[0015] The beneficial effects of the present utility model are as follows: The present invention realizes the rotational installation with the mounting base by providing a sleeve cavity on the handle of the handle, reduces the installation height between the handle and the mounting base, and arranges the locking mechanism by using the rotational fitting installation of the sleeve cavity and the sleeve. The arrangement is direct, simple and effective. Moreover, the present utility model uses a pin assembly that can elastically extend as the lock body of the locking mechanism. When the end of the positioning pin of the pin assembly reaches the positioning groove, it automatically snaps into the positioning groove, realizing the automatic locking of the handle, effectively avoiding the situation that the handle is not locked due to the user's misoperation or forgetting. Description of the Drawings

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0017] Figure 1 is a schematic diagram of the scenario when the present utility model adopts the locking handle solution;

[0018] Figure 2 is a schematic structural diagram of the present utility model;

[0019] Figure 3 is a disassembled schematic diagram of the present utility model;

[0020] Figure 4 is a cross-sectional view of the present utility model. Detailed Embodiment

[0021] Refer to Figures 1 to 4A window door handle with a self-locking structure comprises a handle 2 and a mounting base 1, wherein the mounting base 1 is protruded with a sleeve 3, and a sleeve cavity 4 cooperating with the sleeve 3 is provided on the back of the handle 2, and a rotating shaft 5 is provided in the sleeve cavity 4, wherein the handle 2 inserts the sleeve 3 into the sleeve cavity 4, and the rotating shaft 5 penetrates into the sleeve 3 to realize the rotation connection between the handle 2 and the mounting base 1, and the installation height between the handle 2 and the mounting base 1 is reduced by the nested assembly of the sleeve cavity 4 and the sleeve 3, and the sleeve cavity 4 is used. The cylindrical cavity 4 and the sleeve 3 are rotatably matched to realize the arrangement of the locking mechanism. The handle 2 is provided with a bayonet assembly 6 that penetrates into the sleeve cavity 4. The sleeve 3 is provided with a locking groove 7. The bayonet assembly 6 is provided with an elastically retractable locking pin 61 that cooperates with the locking groove 7. When the end of the locking pin 61 of the bayonet assembly 6 reaches the locking groove 7, it is automatically locked in the locking groove 7, restricting the rotation of the handle 2, realizing automatic locking of the handle, and effectively preventing the user from unlocking the handle due to misoperation or forgetfulness.

[0022] As a preferred solution of the utility model, the bayonet assembly 6 is connected and arranged on the side wall of the sleeve cavity 4, and the positioning groove 7 is arranged on the side wall of the sleeve 3, so that the sufficient lateral space between the sleeve cavity 4 and the sleeve 3 can be used to arrange the locking mechanism, so that the positioning groove 7 can be designed to be more easily matched with the bayonet assembly 6 to achieve stable limiting. In addition, the bayonet assembly 6 can be arranged below the grip part of the handle 2, and the grip part is used to cover the bayonet assembly 6, so that the bayonet assembly 6 cannot be easily detected under direct vision of people. On the one hand, it is difficult for young children to observe and operate, further improving the safety. On the other hand, the bayonet assembly 6 will not have much visual impact on the shape of the handle 2.

[0023] Preferably, the latch assembly 6 includes a mounting shell 62, a spring 63 and the latch pin 61. A channel 64 is formed in the mounting shell 62 for the latch pin 61 to movably pass through. The latch pin 61 is sleeved with the spring 63 and installed in the channel 64, and the elastic movement and extension of the latch pin 61 are achieved by the spring 63. The latch pin 61 always remains in an extended state under the action of the spring 63, and one end of the latch pin 61 is stuck in the latch groove 7, and the other end is connected to a hand-held part 65 on the outside of the handle 2. The user retracts the latch pin 61 by pulling the hand-held part 65 hard, so that the end of the latch pin 61 is out of the latch groove 7, and the unlocking handle 2 is rotated to open the window.

[0024] A marble mechanism (9) may also be provided on the handle (2). The marble mechanism (9) includes marbles (91) elastically inserted into the sleeve cavity (4). The sleeve (3) is provided with a limiting sunk groove (31) that cooperates with the marbles (91), and there are more than two limiting sunk grooves (31) arranged along the circumferential wall of the sleeve (3) according to the rotation direction of the handle (2). For example, when there are two limiting sunk grooves (31) arranged 90° apart in the rotation direction of the handle (2), the two limiting sunk grooves 31 define the rotation angle stop positions of the handle 2. The locked or unlocked state of the window door lock body can be indicated by the stop positions, enabling the user to clearly know that the handle 2 has rotated in place and has been unlocked or locked. When in the unlocked or locked state, a certain torque is brought to the handle to prevent the handle from easily rotating and losing the current state due to factors such as gravity or slight touch, which is more conducive to the user's next operation. And since when the handle (2) is in the locked state, the marble mechanism 9 and the latch assembly (6) cooperate with the clamping groove 7 and the limiting sunk groove 31 on the sleeve 3 respectively, the protruding direction of the marbles 91 of the marble mechanism 9 is arranged to be the same as the penetrating direction of the clamping pin 61 of the latch assembly 6, that is, the marble mechanism 9 is arranged below the latch assembly 6. The clamping groove 7 is located above the limiting sunk groove that defines the locked state. At this time, the structure of the handle 2 with both the marble mechanism 9 and the latch assembly 6 arranged is the simplest. There may also be three or more limiting sunk grooves 31 arranged. Specifically, based on the two arranged at 90°, there is also a limiting sunk groove arranged between the two. Its function is that when the user rotates the handle 2 from one of the limiting sunk grooves arranged at 90° to the other, the marbles 91 cross the middle limiting sunk groove to bring a clear operating feel, optimizing the user's experience. And it can also serve as a safeguard to prevent the handle 2 from returning to the automatic locking state due to falling when the unlocking state is not in place.

[0025] The rotating shaft 5 is the core rotating component of the handle 2 and the mounting base 1, and at the same time is the connecting body for their relative assembly. There can be various connection methods, including: 1. (not shown in the figure) Achieving clamping connection through a snap ring. A clamping groove is provided at the bottom end of the rotating shaft 5 and penetrates to the bottom of the sleeve 3. A snap ring is installed through the clamping groove, and the snap ring is used to abut against the bottom of the sleeve 3 to achieve the axial limit of the rotating shaft 5, thereby realizing the assembly of the handle 2 and the mounting base 1; 2. (as Figure 3 shown) Through simple screw connection. A threaded hole is provided at the bottom of the rotating shaft 5, and a through hole for inserting a screw assembly is provided at the bottom of the sleeve 3. The screw assembly passes through the through hole and is tightly connected to the threaded hole, thereby realizing the assembly of the handle 2 and the mounting base 1. The above two connection methods can be selected according to requirements and are not limited to the above two methods.

[0026] The structure of the handle 2 of the present utility model can be modified according to different window door locking methods: for example, adopting a simple scheme of a simple snap lock handle that uses a tongue 8 to catch the window frame or door frame (as Figure 1As shown in the figure, a tongue 8 can be additionally provided on the side of the handle 2 to be clamped and arranged in cooperation with the window frame or door frame, and a cushion block corresponding to the tongue 8 is provided on the door and window frame. On the one hand, it is easier to adjust the tightness of the clamping of the tongue 8, and on the other hand, it avoids scratching the surface coating on the door and window frame, resulting in rust and poor durability. For example, in the case of a transmission handle with a transmission shaft connected to the inner lock body of the window or door (not shown in the figure), a transmission hole for inserting the transmission shaft is provided at the bottom of the rotating shaft 5. One end of the transmission shaft is inserted into the transmission hole, and the other end is connected to the lock body inside the window or door. By rotating the handle 2, the lock body inside the window or door can be driven to work to lock or unlock the window or door.

Claims

1. A window door handle with a self-locking structure, comprising a handle (2) and a mounting base (1), characterized in that: The mounting base (1) protrudes with a sleeve (3). A sleeve cavity (4) matching the sleeve (3) is provided on the back of the handle (2). A rotating shaft (5) is provided in the sleeve cavity (4). The handle (2) sleevs the sleeve (3) through the sleeve cavity (4). The rotating shaft (5) penetrates into the sleeve (3) to realize the rotational connection between the handle (2) and the mounting base (1). A latch assembly (6) penetrating into the sleeve cavity (4) is provided on the handle (2). A positioning groove (7) is provided on the sleeve (3). The latch assembly (6) is provided with an elastically telescopic positioning pin (61) which cooperates with the positioning groove (7) to limit the rotation of the handle (2).

2. The window door handle according to claim 1, characterized in that: The latch assembly (6) is connected through the side wall of the sleeve cavity (4), and the positioning groove (7) is arranged on the side wall of the sleeve (3).

3. The window door handle according to claim 2, wherein: The latch assembly (6) is arranged below the gripping part of the handle (2).

4. The window door handle according to claim 1, characterized in that: The latch assembly (6) includes a mounting shell (62), a spring (63) and the positioning pin (61). A channel (64) for the positioning pin (61) to movably penetrate is formed in the mounting shell (62). The positioning pin (61) is sleeved with the spring (63) and installed in the channel (64), and the elastic telescopic movement of the positioning pin (61) is realized through the spring (63).

5. The window door handle according to claim 1 or 4, characterized in that: One end of the positioning pin (61) is snapped into the positioning groove (7), and the other end is connected with a hand-held part (65) on the outside of the handle (2).

6. The window door handle according to claim 1, characterized in that: A clamping groove is provided at the bottom end of the rotating shaft (5) and penetrates out to the bottom of the sleeve (3), and a circlip is installed on the clamping groove.

7. The window door handle according to claim 1, characterized in that: The rotating shaft (5) is provided with a threaded hole, and a screw assembly penetrates into the bottom of the sleeve (3) and is tightly connected with the threaded hole.

8. The window door handle according to claim 1, characterized in that: A tongue (8) is provided on the side of the handle (2), and a cushion block corresponding to the tongue (8) is provided on the door and window frame.

9. The window door handle according to claim 1, characterized in that: A transmission hole for inserting a transmission shaft is provided on the rotating shaft (5).

10. The window door handle according to claim 1, characterized in that: A ball mechanism (9) is further provided on the handle (2). The ball mechanism (9) includes balls (91) elastically penetrating into the sleeve cavity (4). The sleeve (3) is provided with limiting sunk grooves (31) matching the balls (91), and two or more limiting sunk grooves (31) are arranged along the circumferential wall of the sleeve (3) according to the rotation direction of the handle (2).

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