Bidirectional transmission screen window lock

Abstract

A bidirectional transmission screen window lock comprises a shell, a first sliding rod and a second sliding rod, the first sliding rod and the second sliding rod are installed in the shell in a sliding mode, and the first sliding rod and the second sliding rod stretch out towards the two ends of the shell. The handle is used for driving the first sliding rod and the second sliding rod to stretch out and draw back along the two ends of the shell, one end of the handle is hinged to the interior of the shell, the hinged end of the handle is provided with a meshing structure and is in meshing connection with the first sliding rod, and the middle of the handle is connected with a pull rod and is connected with the second sliding rod through the pull rod; the first sliding rod and the second sliding rod are driven to stretch out and draw back by shifting the handle outwards, so that the lock head is driven to be locked or unlocked, the outward shifting structure is not limited by moving space, operation is more convenient, the handle can be easily shifted even if a woman wears manicure nails, the problem that unlocking operation is difficult is solved, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window accessories, in particular to a two-way transmission screen window lock. Background Art

[0002] The door and window transmission lock is a device used to control the locking and opening of doors and windows. Its principle is mainly to open and close doors and windows through the cooperation of transmission shaft and transmission gear. Its performance stability and convenience of operation are of great significance to improving the user experience of doors and windows.

[0003] In the existing transmission locks, a miniature scroll-type invisible screen window with a sliding screen box can be referred to as the Chinese invention patent with patent application number 2020109116831, comprising an outer frame, the outer frame comprising a vertical frame and a horizontal frame; a screen box is installed in the outer frame, and the screen box comprises a fixed screen box and a sliding screen box; plastic accessories are installed at both ends of the fixed screen box and the sliding screen box, and a miniature scroll device is installed on the inner side of the plastic accessories, the miniature scroll device is connected to the central axis aluminum round tube in the screen box, the central axis aluminum round tube is connected to the screen, and the fixed screen box is connected to the sliding screen box through the screen, and a cracked miniature single-layer plastic bearing is used instead of a ball-type multi-layer bearing to reduce the size of the central axis aluminum round tube in the screen box and increase the capacity of the hidden screen in the screen box; the sliding pull rod is designed as a scroll-type sliding screen box pull rod that can hide screen, and the sliding screen box and the fixed screen box each share half of the required hidden screen, so that the volume of the screen box is significantly reduced, making the screen window more compact and exquisite.

[0004] However, in the above structure, when sliding the doors and windows is required, it is necessary to press the pressing piece on the button lock to unlock the button lock. Since the pressing piece is vertically attached to the fixed screen box, when you want to press it, it is difficult to put your fingers in to press it because the space is too small. Therefore, the operation is restricted. Especially for some ladies wearing manicures, this structure is more difficult to operate and the experience is poor. Not only that, the knot requires two fingers to press the pressing piece at the same time to tighten the switch, so that the transmission rods on both sides can be unlocked at the same time. The clamping force on both sides is indispensable, which further increases the difficulty of operation. In addition, since the product is large in size and needs to be installed on the surface of the profile, it is not conducive to the design of changes in the structure of the profile, making the profile structure single. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a two-way transmission screen window lock.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A two-way transmission screen window lock comprises an outer shell, a first slide bar and a second slide bar slidably installed in the outer shell, the first slide bar and the second slide bar extend to the outside at both ends of the outer shell; it also comprises a handle for driving the first slide bar and the second slide bar to extend and retract along the two ends of the outer shell, one end of the handle is hinged in the outer shell, the hinged end of the handle is provided with an engaging structure and is meshed and connected with the first slide bar, the middle part of the handle is connected with a pull rod, and is connected to the second slide bar through the pull rod, when the handle is turned, the hinged end of the handle drives the first slide bar to extend and retract through the engaging structure, and the middle part of the handle drives the second slide bar to extend and retract through the pull rod.

[0008] In the utility model, the shell is provided with an opening communicating with the interior, the hinged end of the handle is hinged at the opening, and the hinged end of the handle is hinged at the opening.

[0009] In the utility model, a guide hole / guide groove for guiding the first slide bar and the second slide bar is further provided in the shell, and the guide hole / guide groove extends along the sliding direction.

[0010] Furthermore, the extension distance of the guide hole / guide groove is greater than or equal to the sliding distance of the first sliding rod and the second sliding rod driven by the handle to extend and retract.

[0011] In the utility model, a reset mechanism is provided on the opposite side of the first slide bar and the second slide bar, and the reset mechanism includes a mounting column arranged at one end of the first slide bar and a reset spring sleeved on the mounting column, and the two ends of the reset spring respectively abut against the inner end surfaces of the first slide bar and the second slide bar.

[0012] In the utility model, the meshing structure includes meshing teeth arranged at the hinged end of the handle, and the first slide bar is provided with a meshing groove for matching the meshing teeth. The meshing teeth are matched in the meshing groove. When the handle rotates around the hinge axis, the first slide bar is driven to extend and retract through the meshing groove.

[0013] In the utility model, a locking mechanism is provided between the handle and the pull rod, and the locking mechanism includes a lock core rotatably installed on the handle and a lock buckle fixed on the pull rod. A lock tongue cooperating with the lock buckle for locking is provided at the bottom of the lock core. The lock tongue is locked in the lock buckle or unlocked by rotating the lock core. A lock groove is provided on the top of the lock core for conveniently driving the lock core to rotate.

[0014] Furthermore, a long strip mark is provided on the handle, and a circular mark is provided on the lock core. When the circular mark and the long strip mark are not in the same straight line, the lock tongue is buckled on the lock buckle and locked; when the circular mark and the long strip mark are in the same straight line, the lock tongue and the lock buckle are unlocked.

[0015] The utility model has the following advantages and beneficial effects:

[0016] One end of the handle is hinged in the lock shell, the hinged end of the handle is meshed with the first slide bar, the middle part of the handle is connected to the second slide bar through a pull rod, and the first slide bar and the second slide bar are extended and retracted by pushing the handle outward, thereby driving the lock to be locked or unlocked. This outward-pushing structure will not be restricted by the activity space, and the operation is more convenient. Even ladies wearing manicures can easily push the handle, which solves the problem of difficult unlocking operations and improves practicality.

[0017] Moreover, the structure realizes the principle of a labor-saving lever by using the combination of meshing teeth and meshing grooves and connecting the first slide rod through a pull rod, which can realize a two-way transmission function in a small space, making the product size smaller and the opening force smaller. It can not only be used on different profiles, but also saves effort in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 This is a disassembly diagram of the screen lock in this embodiment;

[0020] Figure 2 This is a diagram of the internal structure of the screen lock in this embodiment;

[0021] Figure 3 is a cross-sectional view of the screen lock in this embodiment;

[0022] Figure 4 This is a diagram of the unlocking state of the locking structure in this embodiment;

[0023] Figure 5 2 is a diagram showing the locked state of the locking structure in this embodiment. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, but the utility model is not limited to the following embodiments.

[0025] like Figures 1 to 5As shown, the present embodiment discloses a bidirectional transmission screen window lock, comprising a shell 13, a first slide bar 12 and a second slide bar 8 slidably mounted in the shell 13, the first slide bar 12 and the second slide bar 8 extending outward from both ends of the shell 13 and connected to a lock head through a transmission rod 9; and further comprising a handle 3 for driving the first slide bar 12 and the second slide bar 8 to extend and retract along both ends of the shell 13, one end of the handle 3 being hinged in the shell 13 through a hinge shaft 7, the hinged end of the handle 3 being provided with a meshing structure, and being meshed and connected with the first slide bar 12 through the meshing structure, a pull rod 5 being connected to the middle part of the handle 3, and being connected with the second slide bar 8 through the pull rod 5, specifically, the two ends of the pull rod 5 are respectively hinged to the handle 3 and the second slide bar 8, when the handle 3 is pushed outward, the hinged end of the handle 3 drives the first slide bar 12 to retract inward through the meshing structure, and at the same time, the middle part of the handle 3 drives the second slide bar 8 to retract inward through the pull rod 5, and the lock head is unlocked through the transmission rod 9 while the first slide bar 12 and the second slide bar 8 are retracted.

[0026] In this embodiment, the shell 13 is a long strip structure, and the front side of the shell 13 is provided with an opening 130 connected to the interior. The hinged end of the handle 3 is hinged at the opening 130. After the handle 3 is installed, a hole is left at the opening 130 to facilitate the insertion of fingers to move the handle 3. Guide holes / guide grooves 131 for guiding the first slide bar 12 and the second slide bar 8 are also provided on the shell arms on both sides. The guide holes / guide grooves 131 extend along the sliding direction, and the extension distance of the guide holes / guide grooves 131 is greater than or equal to the sliding distance that the handle 3 drives the first slide bar 12 and the second slide bar 8 to retract.

[0027] In this embodiment, in order to facilitate the resetting of the lock, a resetting mechanism is provided on the opposite side of the first slide bar 12 and the second slide bar 8, and the resetting mechanism includes a mounting column arranged at one end of the first slide bar 12 and a resetting spring 6 sleeved on the mounting column, and the two ends of the resetting spring 6 are respectively against the inner end surfaces of the first slide bar 12 and the second slide bar 8. When the first slide bar 12 and the second slide bar 8 are retracted inwardly, the resetting spring 6 is compressed. When the handle 3 stops being moved, the elastic force of the resetting spring 6 pushes the first slide bar 12 and the second slide bar 8 to extend outward at the same time, and the handle 3 is reset, thereby driving the lock to be reset.

[0028] In this embodiment, the meshing structure includes a meshing tooth 31 arranged at the hinged end of the handle 3, and the first slide bar 12 is provided with a meshing groove 121 for matching the meshing tooth 31. Under normal circumstances, the meshing tooth 31 is matched in the meshing groove 121. When the handle 3 rotates around the hinge shaft 7, the meshing tooth 31 is driven to rotate relative to the hinge shaft 7, and the meshing tooth 31 drives the first slide bar 12 to extend and retract through the meshing groove 121; preferably, one end of the pull rod 5 is hinged on the handle 3 at a position close to the meshing tooth 31, thereby forming the effect of a force-saving lever; not limited to the above embodiment, the meshing groove 121 can also be set on the second slide bar 8, and the positions of the first slide bar 12 and the second slide bar 8 can be swapped, and the same technical effect is achieved.

[0029] In this embodiment, a locking mechanism is provided between the handle 3 and the pull rod 5 to prevent children from opening it easily. The locking mechanism includes a lock core 2 rotatably installed on the handle 3 and a lock buckle 4 fixed on the pull rod 5. The bottom of the lock core 2 is provided with a lock tongue 20 that cooperates with the lock buckle 4 to lock. The lock tongue 20 can be driven to lock in the lock buckle 4 or unlocked by rotating the lock core 2. The top of the lock core 2 is provided with a lock groove that facilitates driving the lock core 2 to rotate. The lock groove can be a right-angle groove or a special-shaped groove. In this embodiment, a hexagonal groove is preferably used.

[0030] Furthermore, in order to facilitate confirmation of whether the locking mechanism is in a locked state or an unlocked state, a long strip mark 33 is provided on the handle 3, and a circular mark 21 is provided on the lock core 2. When the handle 3 is covered, the lock core 2 is rotated so that the circular mark 21 and the long strip mark 33 are not in the same straight line. At this time, the lock tongue 20 is engaged with the lock buckle 4 and locked, and the handle 3 cannot be moved. The lock core 2 is rotated so that the circular mark 21 and the long strip mark 33 are in the same straight line. At this time, the lock tongue 20 and the lock buckle 4 are unlocked. Preferably, the locking mechanism rotates the lock core 2 by an external safety key 1, and the safety key 1 is provided with a structure with the same shape as the lock slot.

[0031] The above contents described in this specification are merely examples of the present invention. Technicians in the technical field to which the present invention belongs can make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the contents of the present invention specification or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A two-way transmission screen lock, comprising a housing (13), a first slide bar (12) and a second slide bar (8) slidably mounted in the housing (13), wherein the first slide bar (12) and the second slide bar (8) extend outward at two ends of the housing (13), characterized in that: The invention also comprises a handle (3) for driving the first slide bar (12) and the second slide bar (8) to extend and retract along the two ends of the housing (13); one end of the handle (3) is hinged in the housing (13); the hinged end of the handle (3) is provided with a meshing structure and is meshingly connected with the first slide bar (12); the middle part of the handle (3) is connected with a pull rod (5) and is connected to the second slide bar (8) through the pull rod (5); when the handle (3) is moved, the hinged end of the handle (3) drives the first slide bar (12) to extend and retract through the meshing structure, and the middle part of the handle (3) drives the second slide bar (8) to extend and retract through the pull rod (5).

2. A two-way transmission screen window lock according to claim 1, characterized in that: The outer shell (13) is provided with an opening (130) communicating with the interior, and the hinged end of the handle (3) is hinged at the opening (130).

3. A two-way transmission screen window lock according to claim 1, characterized in that: A guide hole / guide groove (131) for guiding the first slide bar (12) and the second slide bar (8) is also provided on the shell arm located on the inner side of the shell, and the guide hole / guide groove (131) extends along the sliding direction.

4. A two-way transmission screen window lock according to claim 3, characterized in that: The extension distance of the guide hole / guide groove (131) is greater than or equal to the sliding distance of the first slide bar (12) and the second slide bar (8) driven by the handle (3) to extend and retract.

5. A two-way transmission screen window lock according to claim 1, characterized in that: A reset mechanism is provided on one side opposite to the first slide bar (12) and the second slide bar (8), the reset mechanism comprising a mounting column arranged at one end of the first slide bar (12) and a reset spring (6) sleeved on the mounting column, the two ends of the reset spring (6) respectively abutting against the inner end surfaces of the first slide bar (12) and the second slide bar (8).

6. A two-way transmission screen lock according to claim 1, characterized in that: The meshing structure comprises a meshing tooth (31) arranged at the hinged end of the handle (3); the first slide bar (12) is provided with a meshing groove (121) for matching the meshing tooth (31); the meshing tooth (31) is matched in the meshing groove (121); when the handle (3) rotates around the hinge shaft (7), the meshing groove (121) drives the first slide bar (12) to extend and retract.

7. A two-way transmission screen window lock according to claim 1, characterized in that: A locking mechanism is provided between the handle (3) and the pull rod (5), the locking mechanism comprising a lock core (2) rotatably mounted on the handle (3) and a lock buckle (4) fixed on the pull rod (5); a lock tongue (20) cooperating with the lock buckle (4) for locking is provided at the bottom of the lock core (2); the lock tongue (20) is locked in the lock buckle (4) or unlocked by rotating the lock core (2); and a lock groove is provided at the top of the lock core (2) for conveniently driving the lock core (2) to rotate.

8. A two-way transmission screen window lock according to claim 7, characterized in that: The handle (3) is provided with a long strip mark (33), and the lock core (2) is provided with a circular mark (21); when the circular mark (21) and the long strip mark (33) are not in the same straight line, the lock tongue (20) is buckled on the lock buckle (4) to lock; when the circular mark (21) and the long strip mark (33) are in the same straight line, the lock tongue (20) and the lock buckle (4) are unlocked.

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