A linkage multi-point chain window opener

Abstract

The invention discloses a linkage multi-point lock chain window opener, comprising a locking point, a lock seat, a transmission bar, an anti-misoperation device, a linkage mechanism, a screw mechanism and a worm gear mechanism, wherein a driving roller is arranged on the screw nut of the screw mechanism; the worm gear mechanism comprises an anti-bending chain, a sprocket, a worm wheel and a worm, which are extended and retracted by rotating the screw to the anti-bending chain; the linkage mechanism comprises a fork member, which is driven to move by a driving roller; the anti-bending chain is structured with a chain end, which is connected to the linkage mechanism; one of the locking point and the lock seat is fixedly mounted on the window frame, and the other is mounted on a transmission bar inserted into a European standard notch of the window sash, the transmission bar is connected to the fork member, and is driven to move by the fork member, and the anti-misoperation device controls the moving distance of the transmission bar to match the corresponding position of the locking point and the lock seat. The window opener integrates the locking mechanism and the opening mechanism, and can realize the dual-function actions of locking and pushing through a unified rotating action, with integrated functions.

Description

Technical Field

[0001] The invention relates to an auxiliary window opening and closing tool, which is suitable for window structures such as aluminum alloy door windows and curtain wall windows, and in particular to a linkage multi-point chain type window opener. Background Art

[0002] Traditional chain window openers do not have the ability to drive the lock point and can only push and pull the window back. The window lock point is driven by another mechanism or does not have a lock point. If another mechanism is required to drive the lock point, two actions are required: first open the lock point, then shake the chain window opener to push the window out; close the window, and vice versa. If there is no lock point, the air tightness and water tightness of the window cannot be met. Summary of the invention

[0003] The object of the present invention is to provide a window opener capable of simultaneously realizing locking point driving and window opening and closing in view of the above-mentioned deficiencies in the prior art.

[0004] The present invention achieves the above object through the following technical solutions:

[0005] A linkage multi-point chain window opener, comprising: a locking point, a lock seat, a transmission bar, an anti-misoperation device, a linkage mechanism, a screw mechanism and a worm gear mechanism, wherein:

[0006] The screw mechanism includes a screw and a nut. The nut is sleeved on the screw and can move along the axial direction of the screw. A driving roller is provided on the nut.

[0007] The worm gear mechanism includes an anti-bending chain, a sprocket, a worm wheel and a worm, the worm wheel and the worm are meshed with each other, the sprocket and the anti-bending chain are meshed with each other, and the sprocket and the worm wheel are coaxially fixed; the worm is connected to the lead screw, the lead screw and the worm can rotate coaxially, and the anti-bending chain is driven to extend and retract by rotating the lead screw;

[0008] The linkage mechanism includes a fork member, which is configured with a groove for accommodating a driving roller, and the driving roller drives the fork member to move; the anti-bending chain is configured with a chain end, and the chain end is connected to the linkage mechanism;

[0009] One of the lock point and the lock seat is fixedly mounted on the window frame, and the other is mounted on a transmission bar inserted into a European standard slot of the window sash. The transmission bar is connected to a fork member and is driven to move by the fork member. A boss is constructed at the end of the transmission bar.

[0010] The anti-misoperation device is used to be fixedly installed on the window sash, and the anti-misoperation device includes a accommodating chamber, and a spring, a cylindrical pin and a square pin installed in the accommodating chamber; wherein the square pin is connected to the spring, the cylindrical pin and the square pin are integrally formed, and the cylindrical pin can extend out of the accommodating chamber under the elastic force of the spring; the accommodating chamber cooperates with the boss at the end of the transmission bar, so that the square pin can be stuck into the boss as the cylindrical pin extends, thereby limiting the movement of the transmission bar.

[0011] For example, the locking point is installed on the transmission bar, and the lock seat is installed on the corresponding position of the window frame. When the window sash is closed, the driving roller is inserted into the groove of the fork member, and the locking point is inserted into the lock seat. When the window is opened, the rotating screw drives the nut to move, and the driving roller on the fork member moves accordingly. At this time, the anti-bending chain is also driven forward due to the rotation of the screw rod; when the driving roller is separated from the fork member, the anti-misoperation device cylindrical pin on the window sash is also extended under the action of the spring, driving the square pin to clamp into the boss of the transmission bar, limiting the movement of the transmission bar, so that the transmission bar will not move again during the process of the window sash continuing to be pushed out, ensuring that the moving distance of the locking point remains unchanged.

[0012] When the window sash needs to be closed, the screw rod is rotated in the opposite direction, and the nut and the driving roller move in the opposite direction to pull back the anti-bending chain. When the anti-bending chain is pulled back to a certain position, the driving roller enters the groove of the fork member. In the process of the driving roller entering the groove of the fork member, the cylindrical pin of the anti-misoperation device gradually presses against the window frame and is compressed. The square pin is then compressed and withdraws from the boss of the transmission bar, eliminating the restriction on the transmission bar. The transmission bar moves under the drive of the fork member, driving the locking point to enter the lock seat to lock the window.

[0013] Preferably, in the above-mentioned linked multi-point chain window opener, the linked mechanism further comprises a linked plate, and the chain end and the fork member are both connected to the linked plate.

[0014] Preferably, in the above-mentioned linked multi-point chain window opener, the lead screw and the worm are connected by a connecting sleeve.

[0015] Preferably, the above-mentioned linked multi-point chain window opener also includes a box body, in which the screw mechanism and the worm gear mechanism are installed, and the side wall of the box body is provided with a hole for the anti-bending chain to extend and retract and a groove for the driving roller to move.

[0016] Preferably, the above-mentioned linked multi-point chain window opener further includes an input end, which is arranged outside the box body and fixedly connected to the screw rod.

[0017] Preferably, in the above-mentioned linked multi-point chain window opener, a screw rod bracket is further provided in the box body for supporting the screw rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the cooperation of the transmission bar, linkage mechanism and anti-misoperation device, the locking mechanism and the opening mechanism are integrated into one, and the dual functions of locking and pushing can be realized through a unified rotation action, with integrated functions;

[0020] 2) Save a separate locking mechanism and save total cost;

[0021] 3) Only a single rotation action is used to achieve two action results: opening the window and unlocking the lock, and closing the window and locking the lock. The operation is simplified and the design is more user-friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the linkage mechanism and screw mechanism of the linkage multi-point chain window opener;

[0023] Figure 2 It is a schematic diagram of the structure of the screw mechanism and worm gear mechanism of the linked multi-point chain window opener;

[0024] Figure 3 A schematic diagram of the structure in which the misoperation prevention device cooperates with the transmission bar boss to control the movement of the boss;

[0025] Figure 4 To prevent the misoperation of the device and the transmission bar boss, the boss is not restricted.

[0026] Figure 5 It is a schematic diagram of the overall structure of the linked multi-point chain window opener in the window open state.

[0027] In the figure:

[0028] 1-locking point 2-lock seat 3-input end 4-box body 5-screw bracket 6-screw 7-nut 8-connecting sleeve 9-driving roller 10-sprocket 11-anti-bending chain, 12-chain end, 13-worm wheel, 14-worm, 15-fork part, 16-linkage plate, 17-linkage cover, 18-anti-misoperation device, 19-transmission bar, 20-cylindrical pin, 21-square pin, 22-spring, 23-boss. DETAILED DESCRIPTION

[0029] The linked multi-point chain window opener of the present invention is explained and illustrated in detail below in conjunction with the accompanying drawings and preferred specific embodiments, so that those skilled in the art can better understand the present invention and implement it.

[0030] Please refer to Figure 1 and Figure 2 It is a type of linked multi-point chain window opener, including a lock seat 2 installed on the window frame, a transmission bar 19 installed in the European standard groove of the window sash, a locking point 1 constructed on the transmission bar 19, a linkage mechanism fixedly installed on the transmission bar 19, and a box body 4 installed on the window frame, wherein the box body 4 includes a screw mechanism and a worm gear mechanism.

[0031] The screw mechanism includes a screw 6 and a nut 7. The screw 6 is installed in the box body 4 through the screw support 5. The side wall of the box body 4 is provided with a hole for the anti-bending chain 11 to extend and retract and a groove for the driving roller 9 to move. The anti-bending chain 11 is configured with a chain end 12 at the end extending out of the box body, and the chain end 12 is connected to the linkage mechanism. An input terminal 3 is provided outside the box body 4, and the input terminal 3 is fixedly connected to the screw 6. The nut 7 is sleeved on the screw 6 and can move axially along the screw 6; a sheet structure is configured on the nut 7 for mounting the driving roller 9.

[0032] The worm gear mechanism includes an anti-bending chain 11, a sprocket 10, a worm wheel 13 and a worm 14. The worm 14 is connected to the screw 6 through a connecting sleeve 8, and the screw 6 and the worm 14 can rotate coaxially. The worm 14 and the worm wheel 13 are meshed with each other, and the worm wheel 13 is coaxially fixed with the sprocket 10. The sprocket 10 and the anti-bending chain 11 are meshed with each other. The rotation of the worm 14 drives the worm wheel 13 to rotate, the worm wheel 13 drives the sprocket 10 to rotate, and the sprocket 10 drives the anti-bending chain 11 to extend and retract.

[0033] The linkage mechanism includes a fork member 15 and a linkage piece 16. The fork member 15 is configured with a groove, which is inclined at a certain angle along the window frame and is not perpendicular to the window frame, and is used to accommodate the driving roller 9. The fork member 15 is connected to the chain end 12 through the linkage piece 16. The fork member 15 is connected to the transmission bar 19. The linkage mechanism is installed in a box structure, and the box structure is provided with a linkage cover 17 for easy opening and maintenance.

[0034] The end of the transmission bar 19 is formed with a boss 23 .

[0035] See also Figure 3 and Figure 4 The anti-misoperation device is used to be fixedly installed on the window sash, and the anti-misoperation device includes a accommodating chamber, and a spring 22, a cylindrical pin 20 and a square pin 21 installed in the accommodating chamber; wherein the square pin 21 is connected to the spring 22, and the cylindrical pin 20 and the square pin 21 are integrally formed, and the cylindrical pin 20 can extend out of the accommodating chamber under the elastic force of the spring 22; the accommodating chamber cooperates with the boss 23 at the end of the transmission bar, so that the square pin 21 can be stuck into the boss 23 as the cylindrical pin 20 extends, thereby limiting the movement of the transmission bar 19; when the cylindrical pin 20 is compressed into the accommodating chamber, the square pin 21 is also compressed, thereby withdrawing from the boss 23, canceling the restriction, and the transmission bar 19 can move relative to the anti-misoperation device.

[0036] The above-mentioned linked multi-point chain window opener, the number of rotations of the screw rod and the travel distance of the nut, the travel distance of the sprocket-driven anti-bending chain, the limitation of the movement distance of the transmission bar by the anti-misoperation device, and the formation of the locking point and lock seat need to cooperate with each other to ensure that after the window sash is closed, the locking point just moves to the lock seat position to lock.

[0037] For example, each time the input end 3 rotates one circle, the screw 6 is driven to rotate one circle, and the nut 7 on the screw 6 moves 4mm (it can also be set to 6mm, 8mm, etc., which is related to the lead of the screw), and at the same time, the worm 14 drives the worm wheel 13 to rotate 45 degrees (it can also be set to 60 degrees, 90 degrees, etc., which is related to the transmission ratio of the worm wheel), and the worm wheel 13 drives the sprocket 10 to drive the anti-bending chain 11 to move 7mm (calculated based on the chain pitch of 9.525mm). The travel of the locking point 1 to lock the lock seat 2 is 16mm. In this case, the screw 6 needs to rotate 4 circles, and the anti-bending chain 11 needs to extend 28mm. Ensuring that the anti-bending chain 11 can freely extend 28mm during the opening process of the locking point 1 can achieve the two actions of opening the locking point and pushing out the chain at the same time.

[0038] See also Figure 5 The process of opening the window sash is as follows: the input end 3 rotates 4 times, the nut 7 and the driving roller 9 move 16mm, the anti-bending chain 11 and the chain end 12 move freely 28mm, and the free movement ends. The anti-bending chain 11 will force the window sash out, and the window sash and the window frame will move away from each other for a distance. During this process, the cylindrical pin 20 of the anti-misoperation device 18 will also gradually move away from the window frame and gradually extend out of the accommodation chamber under the elastic force of the spring 22. After that, the driving roller 9 and the fork member 15 will be disengaged and continue to move with the nut 7; the cylindrical pin 20 on the anti-misoperation device will pop out completely, and the square pin will be stuck between the two adjacent bosses of the transmission bar to limit the transmission bar from moving further; to ensure that when the window sash is closed, the fork member 15 and the driving roller 9 can be smoothly put into place.

[0039] The process of closing the window sash is as follows: the input terminal 3 is rotated in the reverse direction, the nut 7 and the driving roller 9 move in the reverse direction to meet the fork member 15 on the window sash, the anti-bending chain 11 is continuously retracted, and the window sash is closed until the cylindrical pin on the anti-misoperation device is against the window frame and is continuously pressed into the accommodating chamber. At this time, the driving roller 9 enters the groove of the fork member 15, and at the same time, the square pin 21 of the anti-misoperation device retreats due to the pressure of the cylindrical pin 20, and is pulled away from the boss 23 of the transmission bar, releasing the transmission bar 19, and the nut 7 continues to move 16mm, driving the locking points of the fork member 15 and the transmission bar 19 to be inserted into the lock seat of the window frame to lock the window; the chain end 12 can move freely 28mm during this process.

[0040] The invention concept is described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the core idea of ​​the invention. It should be pointed out that any obvious modification, equivalent substitution or other improvement made by a person of ordinary skill in the art without departing from the invention concept should be included in the protection scope of the present invention.

Claims

1. A linkage multi-point chain window opener, characterized in that: include: Locking point, lock seat, transmission bar, anti-misoperation device, linkage mechanism, screw mechanism and worm gear mechanism, among which, The screw mechanism includes a screw and a nut. The nut is sleeved on the screw and can move along the axial direction of the screw. A driving roller is provided on the nut. The worm gear mechanism includes an anti-bending chain, a sprocket, a worm wheel and a worm, the worm wheel and the worm are meshed with each other, the sprocket and the anti-bending chain are meshed with each other, and the sprocket and the worm wheel are coaxially fixed; the worm is connected to the lead screw, the lead screw and the worm can rotate coaxially, and the anti-bending chain is driven to extend and retract by rotating the lead screw; The linkage mechanism includes a fork member, which is configured with a groove for accommodating a driving roller, and the driving roller drives the fork member to move; the anti-bending chain is configured with a chain end, and the chain end is connected to the linkage mechanism; One of the lock point and the lock seat is fixedly mounted on the window frame, and the other is mounted on a transmission bar inserted into a European standard slot of the window sash. The transmission bar is connected to a fork member and is driven to move by the fork member. A boss is constructed at the end of the transmission bar. The anti-misoperation device is used to be fixedly installed on the window sash, and the anti-misoperation device includes a receiving chamber, and a spring, a cylindrical pin and a square pin installed in the receiving chamber; wherein the square pin is connected to the spring, and the cylindrical pin and the square pin are integrally formed, and the cylindrical pin can extend out of the receiving chamber under the elastic force of the spring; the receiving chamber cooperates with the boss at the end of the transmission bar, so that the square pin can be stuck into the boss as the cylindrical pin extends, thereby limiting the movement of the transmission bar; When the window is opened, the rotating screw drives the nut to move, and the driving roller on the fork moves accordingly. At this time, the anti-bending chain is also driven forward by the rotation of the screw; when the driving roller is separated from the fork, the anti-misoperation device cylindrical pin on the window sash is also extended under the action of the spring, driving the square pin to get stuck in the boss of the transmission bar, limiting the movement of the transmission bar; When the window sash needs to be closed, the screw rod is rotated in the opposite direction, and the nut and the driving roller move in the opposite direction to pull back the anti-bending chain. When the anti-bending chain is pulled back to a certain position, the driving roller enters the groove of the fork member. In the process of the driving roller entering the groove of the fork member, the cylindrical pin of the anti-misoperation device gradually presses against the window frame and is compressed. The square pin is then compressed and withdraws from the boss of the transmission bar, eliminating the restriction on the transmission bar. The transmission bar moves under the drive of the fork member, driving the locking point to enter the lock seat to lock the window.

2. The linkage multi-point chain window opener according to claim 1, characterized in that: The linkage mechanism also includes a linkage plate, and the chain end and the shift fork member are both connected to the linkage plate.

3. The linkage multi-point chain window opener according to claim 1, characterized in that: The lead screw and the worm are connected via a connecting sleeve.

4. The linkage multi-point chain window opener according to claim 1, characterized in that: It also includes a box body, in which a screw mechanism and a worm gear mechanism are installed, and a hole for the anti-bending chain to be stretched and contracted and a groove for the driving roller to move are arranged on the side wall of the box body.

5. The linkage multi-point chain window opener according to claim 4, characterized in that: The box also includes an input terminal, which is arranged outside the box body and is fixedly connected to the lead screw.

6. The linkage multi-point chain window opener according to claim 4, characterized in that: The box body is also provided with a screw support for supporting the screw.

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