Bidirectional synchronous strip lock

Abstract

The utility model discloses a bidirectional synchronous strip lock, which belongs to the field of locks of screen windows and doors and windows, is used for locking and unlocking an upper lock point and a lower lock point of the screen windows and the doors and windows, solves the technical problem of synchronous movement of the upper lock point and the lower lock point, and comprises a lock body, the upper rack and the lower rack can move in the longitudinal direction of the lock body, the upper rack is provided with an upper shifting fork, the lower rack is provided with a lower shifting fork, the upper rack and the lower rack are meshed through a gear, the gear is limited in the lock body, the lock body is provided with a push block, the push block can move relative to the lock body, and the push block is connected to the upper rack or the lower rack.

Description

Technical Field

[0001] The utility model belongs to the field of locks for screen windows, doors and windows, and particularly relates to a two-way control lock. Background Art

[0002] Two-way control locks, used on screens, doors, and windows, lock and unlock simultaneously in both the upward and downward directions. A shift fork drives a locking point on a transmission rod up and down to engage or disengage the lock seat on the window frame. Existing two-way control locks require two fingers to operate: one finger controls the upward movement of the locking point on the transmission rod, and the other controls the downward movement of the locking point on the transmission rod, making operation very inconvenient. Utility Model Content

[0003] The purpose of the utility model is to provide a bidirectional synchronous strip lock, which realizes the synchronous movement of two locking points in the upper and lower directions.

[0004] A bidirectional synchronized bar lock includes a lock body, an upper rack and a lower rack are installed in the lock body, the upper rack and the lower rack can move along the longitudinal direction of the lock body, the upper rack is provided with an upper shift fork, the lower rack is provided with a lower shift fork, the upper rack and the lower rack are engaged by a gear, the gear is limited in the lock body, the lock body is installed with a push block, the push block can move relative to the lock body, and the push block is connected to the upper rack or the lower rack.

[0005] The lock body includes a face frame and a bottom plate, the bottom plate is covered on the bottom surface of the face frame, the top surface of the face frame is provided with a longitudinal groove, the upper rack is connected to the push block through a connecting plate, the connecting portion of the connecting plate and the push block can move along the longitudinal groove, and the push block is covered with a longitudinal groove along the top surface of the face frame.

[0006] A fork plate is provided at one end of the lower rack, and clamping columns are provided on both sides of the fork plate. An operating port is provided on the top surface of the face frame, and a longitudinal password wheel is installed between the bottom plate and the operating port. The end surface of the password wheel is provided with a groove for clamping the clamping column, and the groove is provided with a notch for disengaging the clamping column.

[0007] Card platforms are provided on both sides of the bottom plate, the password wheel is placed between the card platforms, a horizontal shaft extends from the groove, and the horizontal shaft abuts against one of the card platforms through a ball and a spring.

[0008] The two ends of the gear are axially connected to the face frame and the spring seat respectively. The two ends of the spring seat are respectively in contact with the upper fork and the lower fork through the driving spring. The spring seat is limited to the bottom plate.

[0009] The beneficial effects of the utility model are as follows: the transmission mechanism composed of the upper rack, the lower rack and the gear enables the push block to drive the upper rack and the lower rack to move synchronously, and also enables the upper fork and the lower fork to drive the locking point on the transmission rod to move up and down to achieve synchronous locking or unlocking. The above process can be completed by pushing the push block with one finger, which is very convenient to operate. At the same time, a password wheel is provided to prevent children from operating it by mistake. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional diagram of the bidirectional synchronous strip lock of the utility model;

[0011] Figure 2 for Figure 1 Exploded diagram;

[0012] Figure 3 for Figure 1 Longitudinal cross-sectional view. DETAILED DESCRIPTION

[0013] The present invention will be further described in detail below with reference to the accompanying drawings.

[0014] like Figure 1 、 2 As shown in Figures 3 and 4, the bidirectional synchronous bar lock consists of a face frame 1 and a base plate 2. The base plate 2 is covered from the bottom surface of the face frame 1 and fixed with screws. A connecting plate 3, an upper rack 4, a lower rack 5, a gear 6, and a spring seat 7 are provided within the lock body. The upper rack 4 and the lower rack 5 are meshed through the gear 6, and the ends of the gear 6 are axially connected to the face frame 1 and the spring seat 7, respectively. An upper arch 8, a support plate 9, and a lower arch 10 are provided in the middle of the base plate 2. The upper shift fork 11 of the upper rack 4 is provided on the upper arch 8. When the upper rack 4 moves up and down, the upper arch 8 limits its position. The lower shift fork 12 of the lower rack 5 is provided on the lower arch 10. When the lower rack 5 moves up and down, the lower arch 10 limits its position.

[0015] The spring seat 7 is positioned above the support plate 9 and below the upper rack 4 and lower rack 5. The spring seat 7 is a rectangular plate, longitudinally limited by two staggered bosses 13 located on either side of the support plate 9. Laterally, the spring seat 7 is limited by the sidewalls of the face frame 1. Two guide posts 14 extend from the longitudinal end faces of the spring seat 7. These posts 14 are respectively connected to one end of a drive spring 15. The other end of the drive spring 15 is correspondingly connected to the upper limit post 16 of the upper shift fork 11 and the lower limit post 17 of the lower shift fork 12. The drive spring can push the upper rack upward or the lower rack downward.

[0016] The top surface of face frame 1 is provided with a longitudinal groove 18, with stoppers 19 at each end. A push block 20, along with the two stoppers 19, covers the longitudinal groove 18 on the top surface of face frame 1. A connecting plate 3 is positioned between face frame 1 and upper rack 4. One end of connecting plate 3 is inserted into circular hole 4a on upper rack 4 via connecting post 21. The other end of connecting plate 3 is connected to push block 20 via set screw 22. When push block 20 is pushed, set screw 22, acting as the connecting portion between connecting plate 3 and push block 20, moves along longitudinal groove 18. The stoppers 19 act as longitudinal stoppers for push block 20, allowing it to be moved up and down.

[0017] Base plate 2 is provided with mounting brackets 23 on either side, with a code wheel 24 longitudinally positioned between them. A groove 25 is defined on the end surface of code wheel 24, with a notch 26 defined in the groove. A transverse shaft 27 extends from groove 25 and abuts against a mounting hole 23a of one of the mounting brackets 23 via a ball bearing 28 and a spring 29. A fork plate 30 is provided at one end of lower rack 5, with mounting posts 31 on either side. An operating port 32 is provided on the top surface of face frame 1, through which the outer edge of code wheel 24 protrudes to enable movement. When the latch 31 is hooked into the groove 25 from both ends of the combination wheel 24, the lower rack 5 is locked by the combination wheel 24; when the latch 31 is placed at the notch 26 of the combination wheel 24, the latch 31 can be disengaged from the combination wheel 24 from the notch 26, thereby unlocking the lower rack 5 from the combination wheel 24. At this time, the portion of the outer edge of the combination wheel 24 exposed from the operating port 32 is marked as an unlocking number. When the operating port 32 exposes the unlocking number, the combination wheel 24 is in the unlocked state. When the operating port 32 exposes the portion other than the unlocking number, the combination wheel 24 is in the locked state. The arrangement of the combination wheel 24 effectively prevents the danger of children accidentally operating the unlocking operation.

[0018] When the above-mentioned two-way synchronization lock works:

[0019] When the window sash is brought close to the window frame, the upper rack 4 moves upward under the action of the driving spring 15, and the upper fork 11 drives the locking point of the upper transmission rod to enter the corresponding lock seat of the window frame. At the same time, the lower rack 5 moves downward, and the lower fork 12 drives the locking point of the lower transmission rod to enter the corresponding lock seat of the window frame. The code wheel 24 is dialed from the operating port 32 so that the unlocking number does not appear from the operating port 32. At this time, the window sash is locked by the code wheel 24.

[0020] By turning the combination wheel 24 from the operating port 32 so that the unlocking digit is exposed to the operating port 32, a single finger pushes the push block 20, causing the push block 20 to synchronously retract the upper rack 4 and the lower rack 5 toward the middle. At this point, the upper shift fork 11 drives the locking point of the upper direction transmission rod to disengage from the corresponding lock seat of the window frame, and the lower shift fork 12 drives the locking point of the lower direction transmission rod to disengage from the corresponding lock seat of the window frame. The window sash is now unlocked from the combination wheel 24 and can be opened. The above process can be completed by simply pushing the push block with a finger, which is very convenient to operate.

Claims

1. A bidirectional synchronous lock, characterized in that: The invention comprises a lock body, wherein an upper rack (4) and a lower rack (5) are installed in the lock body, wherein the upper rack (4) and the lower rack (5) can move in the longitudinal direction of the lock body, wherein the upper rack (4) is provided with an upper shift fork (11), and the lower rack (5) is provided with a lower shift fork (12), wherein the upper rack (4) and the lower rack (5) are meshed through a gear (6), and the gear (6) is limited in the lock body, wherein the lock body is provided with a push block (20), wherein the push block (20) can move relative to the lock body, and wherein the push block (20) is connected to the upper rack (4) or the lower rack (5).

2. The bidirectional synchronous bar lock according to claim 1, characterized in that: The lock body comprises a face frame (1) and a bottom plate (2), wherein the bottom plate (2) is covered on the bottom surface of the face frame (1), and a longitudinal groove (18) is provided on the top surface of the face frame (1). The upper rack (4) is connected to the push block (20) via a connecting plate (3), and the connecting portion between the connecting plate (3) and the push block (20) can move along the longitudinal groove (18), and the push block (20) is covered with the longitudinal groove (18) along the top surface of the face frame (1).

3. The bidirectional synchronous strip lock according to claim 2, characterized in that: A fork plate (30) is provided at one end of the lower rack (5), and clamping columns (31) are provided on both sides of the fork plate (30). An operating port (32) is provided on the top surface of the face frame (1), and a longitudinal code wheel (24) is installed between the bottom plate (2) and the operating port (32). The end surface of the code wheel (24) is provided with a groove (25) for clamping the clamping column (31), and the groove (25) is provided with a notch (26) for disengaging the clamping column (31).

4. The bidirectional synchronous strip lock according to claim 3, characterized in that: Card platforms (23) are provided on both sides of the base plate (2), the password wheel (24) is placed between the card platforms (23), a transverse shaft (27) extends from the groove (25), and the transverse shaft (27) abuts against one of the card platforms through a ball (28) and a spring (29).

5. The bidirectional synchronous strip lock according to claim 2, characterized in that: The two ends of the gear (6) are axially connected to the face frame (1) and the spring seat (7), and the two ends of the spring seat (7) are respectively in contact with the upper shift fork (11) and the lower shift fork (12) through the driving spring (15). The spring seat (7) is limited to the bottom plate (2).

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