A handle locking mechanism for hollow built-in blinds

Abstract

The utility model discloses a handle locking mechanism for a hollow built-in blind, and relates to the field of the internal structure of a hollow built-in blind. Before the outer operating handle is installed, the inner operating handle can be effectively locked, so as to avoid accidental movement of the inner operating handle during transportation and damage to the blind; and the outer operating handle can be naturally unlocked after installation to avoid affecting the normal use of the blind. The handle locking mechanism includes a lock tongue slidably connected to the inner operating handle, a lock tongue driving assembly connected to the inner operating handle for driving the lock tongue to extend or retract the inner operating handle, and a locking seat fixedly connected to the window body, and a slot for accommodating the lock tongue is provided on the side of the locking seat facing the inner operating handle. On the whole, it has a series of advantages such as exquisite structure, convenient use, and good practical use effect.

Description

Technical Field

[0001] The utility model relates to the field of the internal structure of a hollow built-in blind. Background Art

[0002] At present, the existing hollow built-in blinds usually have an inner operating handle and an outer operating handle that can move synchronously. The inner operating handle is arranged inside the blind, and the blind is raised or lowered or flipped by the movement of the inner operating handle, while the outer operating handle is slidably connected to the surface of the blind, and maintains a movement tendency of mutual attraction with the inner operating handle under the action of a magnet.

[0003] When transporting such blinds, in order to facilitate stacking and transportation, it is usually decided not to install the outer operating handle first, and to wait until the blinds are delivered to the destination and unloaded before installing the outer operating handle. However, in this way, the inner operating handle will always be in an uncontrolled state during transportation. Once affected by external forces (such as inertia during the transportation vehicle), the inner operating handle will easily move inside the blind, causing the initial position of the inner operating handle to move unexpectedly, and further causing the blind blades to be stacked in disorder or even damaged, which will bring great inconvenience to the subsequent installation of the outer operating handle and the installation and commissioning of the blinds. Utility Model Content

[0004] In view of the above problems, the utility model proposes a handle locking mechanism for a hollow built-in blind, which can effectively lock the inner operating handle before the outer operating handle is installed, thereby avoiding accidental movement of the inner operating handle during transportation; and can be naturally unlocked after the outer operating handle is installed to ensure the normal use of the blind.

[0005] The technical solution of the utility model is as follows: the handle locking mechanism 5 includes a lock tongue 51 slidably connected to the inner operating handle 2, a lock tongue driving assembly 52 connected to the inner operating handle 2 for driving the lock tongue 51 to extend or retract the inner operating handle 2, and a lock seat 53 fixedly connected to the window 3, and a slot 530 for accommodating the lock tongue 51 is provided on the side of the lock seat 53 facing the inner operating handle 2.

[0006] About the bolt drive assembly:

[0007] The lock tongue drive assembly 52 includes a magnet seat 521 and a magnet fixedly installed therein. The top of the magnet seat 521 is hinged to the inner operating handle 2 through a pin shaft 522. The bottom of the magnet seat 521 is fixedly connected to a drive shaft 523. A long oblique guide groove 511 is provided on the lock tongue 51. The drive shaft 523 extends into the oblique guide groove 511. An angle is left between the oblique guide groove 511 and the movement direction of the lock tongue 51.

[0008] About the locking and holding mechanism:

[0009] A locking and holding mechanism is also provided between the magnet seat 521 and the inner operating handle 2, and the locking and holding mechanism includes a holding shaft 524 fixedly connected to the side wall of the magnet seat 521 and a holding spring 22 connected to the inner operating handle 2. A cavity is opened on the side wall of the inner operating handle 2, and the root of the holding spring 22 is fixedly connected to the cavity. The holding shaft 524 is also provided in the cavity and contacts the upper part of the holding spring 22.

[0010] Regarding the sliding connection relationship between the lock tongue and the inner operating handle: a slide groove 21 perpendicular to the movement direction of the inner operating handle 2 is provided, and the locking seat 53 is fixedly installed at the bottom corner of the window 3.

[0011] As an optimization, a limiting groove parallel to the length direction of the slide groove 21 is further provided, and a limiting rib 512 adapted to the limiting groove is fixedly connected to the locking tongue 51, and the limiting rib 512 is slidably connected in the limiting groove.

[0012] When the utility model is initially installed, the inner operating handle can be placed beside the locking seat, and the lock tongue is in a state of extending the inner operating handle into the slot, so that the handle locking mechanism will keep the position locking of the inner operating handle; and when the outer operating handle is installed, the lock tongue can be kept in a state of retracting the inner operating handle under the control of the lock tongue driving assembly, that is, after the installation of the outer operating handle is completed, the position locking of the inner operating handle is released, so that the normal use of the inner operating handle is guaranteed.

[0013] The utility model realizes the purpose of effectively locking the inner operating handle before installing the outer operating handle, and naturally unlocking the outer operating handle after installing, ensuring that the inner operating handle can effectively avoid accidental movement of the inner operating handle under the action of inertia and damage to the blinds during handling and transportation of the hollow built-in blinds. Overall, it has a series of advantages such as exquisite structure, convenient use, good practical use effect, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the hollow built-in blinds.

[0015] Figure 2 It is a schematic diagram of the structure of the inner control handle.

[0016] Figure 3 This is a schematic diagram of the structure when the handle locking mechanism is unlocked.

[0017] Figure 4 This is a three-dimensional picture of the lock tongue when the handle locking mechanism is unlocked.

[0018] Figure 5 This is a schematic diagram of the structure when the handle locking mechanism is locked.

[0019] Figure 6 This is a three-dimensional diagram of the handle locking mechanism when it is locked.

[0020] Figure 7 This is a three-dimensional diagram of the inner control handle.

[0021] Figure 8 It is a three-dimensional structure of the bolt drive assembly. Figure 1 ,

[0022] Fig. 9 It is a three-dimensional structure of the bolt drive assembly. Figure 2 ;

[0023] In the figure, 1 is an outer operating handle, 2 is an inner operating handle, 21 is a slide slot, 22 is a retaining spring, 3 is a window body, and 4 is a blind;

[0024] 5 is a handle locking mechanism, 51 is a lock tongue, 511 is an oblique guide slot, 512 is a limiting ridge, 52 is a lock tongue driving assembly, 521 is a magnet seat, 522 is a pin shaft, 523 is a driving shaft, 524 is a retaining shaft, 53 is a locking seat, and 530 is a slot DETAILED DESCRIPTION

[0025] In order to clearly illustrate the technical features of this patent, this patent is elaborated in detail below through a specific implementation method and in combination with its accompanying drawings.

[0026] In this case, the structural state of the external control handle 1 after installation is as follows Figure 1 As shown, in this state, the external operating handle 1 is slidably connected to the front panel of the window 3. After removing the external operating handle 1 and the front panel of the window 3, as shown in FIG. Figure 2 As shown, the inner operating handle 2 and the handle locking mechanism 5 can be seen. When the inner operating handle 2 reciprocates inside the window 3, the blind 4 can be driven to rise or fall or flip through the transmission mechanism. Considering that the aforementioned transmission mechanism is irrelevant to the technical problem to be solved in this case and belongs to the prior art, it is not repeated in this case.

[0027] like Figure 2-Figure 6As shown, the handle locking mechanism 5 comprises a lock tongue 51 slidably connected to the inner operating handle 2, a lock tongue driving assembly 52 connected to the inner operating handle 2 for driving the lock tongue 51 to extend or retract the inner operating handle 2, and a lock seat 53 fixedly connected to the window 3, and a slot 530 for accommodating the lock tongue 51 is provided on the side of the lock seat 53 facing the inner operating handle 2. In this way, during the initial installation, the inner operating handle 2 can be placed beside the lock seat 52, and the lock tongue is controlled to be in a state of extending the inner operating handle and entering the slot 530, so that the handle locking mechanism 5 will keep the position locking of the inner operating handle; and after the outer operating handle 1 is installed, the lock tongue 51 can be kept in a state of retracting the inner operating handle 2 under the control of the lock tongue driving assembly, that is, after the outer operating handle is installed, the position locking of the inner operating handle is released.

[0028] The bolt drive assembly 52 in this case can be a conventional linear power source, such as an electric push rod, a linear motor, etc., or it can be a non-powered mechanism described below in this case, specifically:

[0029] like Figure 7-Figure 9 As shown, the bolt drive assembly 52 includes a magnet seat 521 and a magnet fixedly installed therein, the top of the magnet seat 521 is hinged to the inner operating handle 2 through a pin 522, the bottom of the magnet seat 521 is fixedly connected with a drive shaft 523, and the bolt 51 is provided with a long strip of oblique guide slot 511, the drive shaft 523 extends into the oblique guide slot 511, and an angle is left between the oblique guide slot 511 and the movement direction of the bolt 51. In this way, as the magnet seat 521 swings along the center of the pin 522, the drive shaft 523 at its bottom will also slide back and forth in the oblique guide slot 511, so that under the influence of the above-mentioned angle, the bolt 51 slides back and forth in the inner operating handle 2, making a linear reciprocating motion of extending or retracting the inner operating handle 2.

[0030] Specifically, after the outer operating handle 1 is installed, the magnet in the outer operating handle 1 can generate suction force on the magnet seat 521, so that it swings outward, and finally drives the lock tongue to retract, and under the influence of the magnetic force, it remains in the state of retracting the inner operating handle 2. Figure 7 , 9The front part of the oblique guide slot 511 is closer to the side where the locking seat is located, and the rear part is farthest from the locking seat. A locking and holding mechanism is also provided between the magnet seat 521 and the inner operating handle 2. The locking and holding mechanism includes a retaining shaft 524 fixedly connected to the side wall of the magnet seat 521 and a retaining spring 22 connected to the inner operating handle 2. A cavity is opened on the side wall of the inner operating handle 2. The root of the retaining spring 22 is fixedly connected to the cavity. The retaining shaft 524 is also provided in the cavity and contacts the upper part of the retaining spring 22. On the one hand, the cavity mentioned above can limit the maximum displacement of the retaining shaft, thereby limiting the maximum rotation angle of the magnet seat 521; more importantly, due to the presence of the retaining spring 22, the retaining shaft 524 can maintain a movement trend toward one side of the cavity when there is no external force; in this way, when the hollow built-in blinds are in the transportation state, the retaining spring 22 will force the retaining shaft 524 and the magnet seat 521 to flip to the rear limit position, at which position the lock tongue 51 is in a state of extending the inner operating handle into the slot 530, and the handle locking mechanism 5 will maintain the position lock for the inner operating handle; and when the outer operating handle 1 is installed, the magnet therein will generate suction to the magnet in the magnet seat 521, thereby pulling the magnet seat 521 to overcome the restoring force of the retaining spring 22 and flip forward to the front limit position, so that the lock tongue 51 remains in the state of retracting the inner operating handle 2, that is, after the installation of the outer operating handle is completed, the position lock of the inner operating handle is released.

[0031] See also Figure 7 Regarding the sliding connection relationship between the lock tongue and the inner operating handle: a slide groove 21 perpendicular to the movement direction of the inner operating handle 2 is opened, and the locking seat 53 is fixedly installed at the bottom corner of the window 3.

[0032] As an optimization, a limiting groove parallel to the length direction of the slide 21 is also provided, and a limiting ridge 512 adapted to the limiting groove is fixedly connected to the lock tongue 51, and the limiting ridge 512 is slidably connected to the limiting groove. During the use of the mechanism, with the limitation of the limiting ridge 512 and the limiting groove, it can be ensured that the lock tongue can only make a straight reciprocating motion along the slide, and further, the extension or retraction of the lock tongue can be better achieved with the driving shaft and the oblique guide slide.

[0033] There are many specific implementation ways of the utility model. The above is only the preferred implementation mode of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the utility model, and these improvements should also be regarded as the protection scope of the utility model.

Claims

1. A handle locking mechanism for a hollow built-in blind, characterized in that: The handle locking mechanism (5) comprises a locking tongue (51) slidably connected to the inner operating handle (2), a locking tongue driving assembly (52) connected to the inner operating handle (2) for driving the locking tongue (51) to extend or retract the inner operating handle (2), and a locking seat (53) fixedly connected to the window (3); a slot (530) for accommodating the locking tongue (51) is provided on a side of the locking seat (53) facing the inner operating handle (2).

2. A handle locking mechanism for a hollow built-in blind according to claim 1, characterized in that: The lock tongue drive assembly (52) comprises a magnet seat (521) and a magnet fixedly mounted therein; the top of the magnet seat (521) is hinged to the inner operating handle (2) via a pin shaft (522); the bottom of the magnet seat (521) is fixedly connected to a drive shaft (523); a long strip-shaped oblique guide slot (511) is provided on the lock tongue (51); the drive shaft (523) extends into the oblique guide slot (511); and an angle is left between the oblique guide slot (511) and the movement direction of the lock tongue (51).

3. A handle locking mechanism for a hollow built-in blind according to claim 2, characterized in that: A locking and holding mechanism is also provided between the magnet seat (521) and the inner operating handle (2), the locking and holding mechanism comprising a holding shaft (524) fixedly connected to the side wall of the magnet seat (521) and a holding spring (22) connected to the inner operating handle (2), a cavity is provided on the side wall of the inner operating handle (2), the root of the holding spring (22) is fixedly connected to the cavity, and the holding shaft (524) is also provided in the cavity and in contact with the upper part of the holding spring (22).

4. A handle locking mechanism for a hollow built-in blind according to claim 1, characterized in that: A slide groove (21) perpendicular to the movement direction of the inner operating handle (2) is provided in the inner operating handle (2), and the locking seat (53) is fixedly mounted at the bottom corner of the window (3).

5. A handle locking mechanism for a hollow built-in blind according to claim 4, characterized in that: A limiting recessed groove parallel to the length direction of the sliding groove (21) is also provided in the sliding groove, and a limiting ridge (512) adapted to the limiting recessed groove is fixedly connected to the locking tongue (51), and the limiting ridge (512) is slidably connected in the limiting recessed groove.

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