Chain type driving structure of lifting window

Abstract

The utility model discloses a chain type driving structure of a lifting window. The chain type driving structure mainly comprises a motor, a lead screw, a driving block, a first chain, a first chain wheel and a second chain wheel. The lead screw is driven by the motor, so that the driving block is driven to slide left and right on the lead screw, and the first chains on the front side and the rear side are pulled to achieve lifting operation of the movable window sash. According to the driving structure, the huge size of a balancing weight is abandoned, and the driving structure is further simplified, so that less internal space of the top frame is occupied, and the view of the window is expanded. In addition, a second guide rail and an adjusting plate are arranged on the rear side of the lead screw, the position of the second chain wheel is locked by adjusting the position of the adjusting plate on the second guide rail, then the length of the first chain on the rear side is adjusted, and finally left-right balance of the movable window sash is adjusted. The device also has the advantages of simple structure, convenience in operation and easiness in implementation.

Description

Technical Field

[0001] The utility model relates to the field of lifting windows, in particular to a chain-type driving structure for lifting windows. Background Art

[0002] Most existing lift windows use a counterweight to balance the weight of the movable sash to control the window's opening and closing. A drawback of this actuation method is that the counterweight takes up a lot of space, resulting in a wider and thicker frame, partially obstructing the view and affecting the aesthetics. As the area of ​​the lift window increases, the space occupied by the counterweight becomes even greater.

[0003] Therefore, the existing technology needs to be further improved and perfected. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a chain-type drive structure for lifting windows.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A chain-type drive structure for a lifting window mainly includes a motor, a screw, a drive block, a first chain, a first sprocket, and a second sprocket. The output end of the motor is connected to the screw for transmission. The drive block is mounted on the screw and is threadedly connected to the screw. The first sprocket is symmetrically mounted on the drive block and is located on the front and rear sides of the screw. The first chain adopts a double first chain design and is respectively mounted on the front and rear sides of the screw. One end of the first chain on the front side is fixed, and the other end passes around the first sprocket on the same side and is connected to the movable window sash. The second sprocket is mounted on the rear side of the screw near one end of the motor. One end of the first chain on the rear side is fixed, and the other end passes around the first sprocket and the second sprocket on the same side and is connected to the movable window sash.

[0007] Furthermore, the driving structure further includes a third sprocket. The third sprocket is mounted on the left and right sides of the top frame. The first chain on the same side passes around the third sprocket and is connected to the movable window sash.

[0008] Furthermore, the drive structure further includes a first guide rail and a slider. The first guide rail is disposed below the screw, and the slider is mounted on the first guide rail and fixedly connected to the drive block. The drive block is driven by the screw and slides back and forth on the first guide rail under the guidance of the slider.

[0009] Furthermore, the driving structure further comprises a guide rail base and a screw rod base. The first guide rail is mounted on the guide rail base, and both ends of the guide rail base are fixedly connected to the screw rod base. Both ends of the screw rod are rotatably connected to the screw rod base.

[0010] Furthermore, the drive block includes a moving block, a connecting block, and a support block. One side of the connecting block is fixed to the support block, and the other side is fixed to the moving block. The moving block is mounted on a screw and threadedly connected to the screw. The support blocks are mounted in pairs on the front and rear sides of the connecting block, and the paired support blocks are connected by a shaft. The first sprocket is mounted on the shaft.

[0011] As a preferred solution of the present invention, a cavity is provided in the connecting block, and openings are provided on the top and one side of the connecting block.

[0012] As a preferred solution of the present invention, four grooves are provided in the cavity, and the grooves extend downward from the top of the cavity to the bottom.

[0013] Furthermore, the guide rail base mainly includes a support plate, a first support bar, and a second support bar. The first support bar is arranged at the bottom of the support plate, located at the front and rear sides of the support plate, and is integrally formed with the support plate. The second support bar is arranged in the middle of the support plate and is integrally formed with the support plate. The second support bars are arranged in pairs, with their bottoms flush with the bottoms of the first support bars and their tops extending upward, penetrating the support plate, and then protruding upward. The first guide rail is clamped between the two second support bars.

[0014] Furthermore, the drive structure includes a fourth sprocket. The fourth sprocket is mounted on the front side of the screw rod near one end of the motor. One end of the first chain on the front side is fixed, and the other end passes around the first and fourth sprockets on the same side and then connects to the movable window sash.

[0015] Furthermore, the drive structure includes a second guide rail for adjusting the position of the second sprocket, an adjustment plate, and a bracket. The second guide rail is disposed laterally. The adjustment plate is mounted within the second guide rail and is slidable within the second guide rail. The bracket is mounted on the adjustment plate and secures the second sprocket to the adjustment plate.

[0016] Furthermore, the drive structure further includes a reducer and a coupling. One end of the reducer is connected to the output end of the motor, and the other end is connected to one end of the coupling. The other end of the coupling is connected to the screw drive.

[0017] Furthermore, the driving structure further includes a locking block. The locking block is mounted on the guide rail base and fixedly connected to the guide rail base. One end of the first chain is fixedly connected to the locking block, and the other end is fixedly connected to the movable window sash.

[0018] Furthermore, when the drive structure is installed at the bottom of the window, it also includes a fifth sprocket, a second chain, and a connector. The second chain is arranged between the first chain and the movable window sash, with one end connected to the first chain via the connector and the other end fixedly connected to the movable window sash. The pin of the first chain and the pin of the second chain are perpendicular to each other. The first chain on the same side passes around the third and fifth sprockets before connecting to the second chain.

[0019] The working process and principle of the present invention are as follows: the present invention drives the screw rod through a motor, thereby driving the drive block to slide left and right on the screw rod, and then pulling the first chains on the front and rear sides to realize the lifting and lowering operation of the movable window sash. This driving structure abandons the huge volume of the counterweight block and further simplifies the driving structure, thereby achieving less space occupied inside the top frame and expanding the window field of view. In addition, the present solution is provided with a second guide rail and an adjustment plate at the rear side of the screw rod. By adjusting the position of the adjustment plate on the second guide rail, the position of the second sprocket is locked, and then the length of the first chain on the rear side is adjusted, and finally the left and right balance of the movable window sash is adjusted. The present invention also has the advantages of simple structure, convenient operation, and easy implementation.

[0020] Compared with the prior art, the present invention also has the following advantages:

[0021] (1) The chain-type drive structure for lifting windows provided by the present invention utilizes a motor to drive a screw rod to rotate and pull a first chain, thereby driving the movable window sash to rise or fall. This method greatly saves the working stroke of the drive block and the motor, facilitates saving space for the drive structure, thereby reducing the area occupied by the window frame, and is conducive to further narrowing the window frame and further widening the window field of view.

[0022] (2) The chain-type drive structure for lifting windows provided by the present invention adjusts the length of the first chain on the rear side by adjusting the position of the second sprocket on the rear side, thereby achieving left-right leveling of the movable window sash. Compared with the existing technology, it can significantly enhance the stability of the movable window sash during the lifting process, making the lifting process smoother and more evenly stressed, without left-right swaying.

[0023] (3) The chain-type drive structure for the lifting window provided by the utility model eliminates the counterweight block in the traditional lifting window, which can further narrow the window width. At the same time, it also optimizes the driving method, reduces the number of moving parts, and thus reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of the chain-type drive structure for lifting windows provided by the utility model.

[0025] Figure 2 It is a three-dimensional diagram of the chain-type drive structure of the lifting window provided by the utility model.

[0026] Figure 3 This is a front view of the chain-type drive structure for lifting windows provided by the present invention (after removing the first chain).

[0027] Figure 4 yes Figure 3 A partial enlarged schematic diagram.

[0028] Figure 5 It is a three-dimensional diagram of the chain-type driving structure of the lifting window provided by the utility model (after removing the first chain).

[0029] Figure 6 yes Figure 5 A partial enlarged schematic diagram.

[0030] Figure 7 It is a structural schematic diagram of the driving block provided by the utility model.

[0031] Figure 8 It is a structural schematic diagram of the components for adjusting the second sprocket provided by the utility model.

[0032] Figure 9 It is a structural schematic diagram of the fourth sprocket and the locking block provided by the utility model.

[0033] Figure 10 This is a front view of the chain drive structure (installed at the bottom) of the lifting window provided by the utility model.

[0034] Figure 11 yes Figure 10 A partial enlarged schematic diagram.

[0035] Description of the reference numerals in the above drawings:

[0036] 1-motor, 2-screw, 3-drive block, 4-first chain, 5-first sprocket, 6-second sprocket, 7-third sprocket, 8-first guide rail, 9-slider, 10-guide rail base, 11-screw seat, 12-moving block, 13-connecting block, 14-support block, 15-concave cavity, 16-groove, 17-support plate, 18-first support bar, 19-second support bar, 20-fourth sprocket, 21-movable window sash, 22-adjusting plate, 23-bracket, 24-reducer, 25-coupling, 26-locking block, 27-fifth sprocket, 28-second chain, 29-connecting piece. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clear and explicit, the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] Example 1:

[0039] like Figures 1 to 9 As shown, a chain-type drive structure for lifting windows mainly includes a motor 1, a screw rod 2, a drive block 3, a first chain 4, a first sprocket 5, and a second sprocket 6. The output end of the motor 1 is connected to the screw rod 2 in a transmission manner. The drive block 3 is mounted on the screw rod 2 and is threadedly connected to the screw rod 2. The first sprocket 5 is symmetrically mounted on the drive block 3 and is located on the front and rear sides of the screw rod 2. The first chain 4 adopts a double first chain design and is respectively mounted on the front and rear sides of the screw rod 2. One end of the first chain 4 on the front side is fixed, and the other end passes around the first sprocket 5 on the same side and is connected to the movable window sash 21. The second sprocket 6 is mounted on the rear side of the screw rod 2 near one end of the motor 1. One end of the first chain 4 on the rear side is fixed, and the other end passes around the first sprocket 5 and the second sprocket 6 on the same side and is connected to the movable window sash 21.

[0040] Furthermore, the driving structure further comprises a third sprocket 7. The third sprocket 7 is mounted on the left and right sides of the top frame. The first chain 4 on the same side passes around the third sprocket 7 and is connected to the movable window sash 21.

[0041] Furthermore, the drive structure further includes a first guide rail 8 and a slider 9. The first guide rail 8 is disposed below the screw rod 2, and the slider 9 is mounted on the first guide rail 8 and fixedly connected to the drive block 3. The drive block 3 is driven by the screw rod 2 and slides back and forth on the first guide rail 8 under the guidance of the slider 9.

[0042] Furthermore, the driving structure further includes a guide rail base 10 and a screw base 11. The first guide rail 8 is mounted on the guide rail base 10, and both ends of the guide rail base 10 are fixedly connected to the screw base 11. Both ends of the screw 2 are rotatably connected to the screw base 11.

[0043] Furthermore, the driving block 3 includes a moving block 12, a connecting block 13, and a support block 14. One side of the connecting block 13 is fixed to the support block 14, and the other side is fixed to the moving block 12. The moving block 12 is mounted on the screw rod 2 and is threadedly connected to the screw rod 2. The support blocks 14 are mounted in pairs on the front and rear sides of the connecting block 13, and the paired support blocks 14 are connected by a shaft. The first sprocket 5 is mounted on the shaft.

[0044] As a preferred solution of the present invention, a cavity 15 is provided in the connecting block 13 , and openings are provided on the top and one side of the connecting block 13 .

[0045] As a preferred solution of the present invention, four grooves 16 are provided in the cavity 15. The grooves 16 extend downward from the top of the cavity 15 to the bottom.

[0046] Furthermore, the guide rail base 10 mainly includes a support plate 17, a first support bar 18, and a second support bar 19. The first support bar 18 is arranged at the bottom of the support plate 17, located at the front and rear sides of the support plate 17, and is integrally formed with the support plate 17. The second support bar 19 is arranged in the middle of the support plate 17 and is integrally formed with the support plate 17. The second support bars 19 are arranged in pairs, with their bottoms flush with the bottoms of the first support bars 18 and their tops extending upward, penetrating the support plate 17, and then protruding upward. The first guide rail 8 is clamped between the two second support bars 19.

[0047] Furthermore, the drive structure includes a fourth sprocket 20. The fourth sprocket 20 is mounted on the front side of the screw rod 2, near one end of the motor 1. One end of the first chain 4 is fixed on the front side, while the other end passes through the first sprocket 5 and the fourth sprocket 20 on the same side before connecting to the movable window sash 21.

[0048] Furthermore, the drive structure includes a second guide rail 21, an adjustment plate 22, and a bracket 23 for adjusting the position of the second sprocket 6. The second guide rail 21 is provided on the side. The adjustment plate 22 is mounted and slidable within the second guide rail 21. The bracket 23 is mounted on the adjustment plate 22 and secures the second sprocket 6 to the adjustment plate 22.

[0049] Furthermore, the drive structure further includes a reducer 24 and a coupling 25. One end of the reducer 24 is connected to the output end of the motor 1, and the other end is connected to one end of the coupling 25. The other end of the coupling 25 is in driving connection with the screw rod 2.

[0050] Furthermore, the driving structure further includes a locking block 26. The locking block 26 is mounted on the guide rail base 10 and fixedly connected to the guide rail base 10. One end of the first chain 4 is fixedly connected to the locking block 26, and the other end is fixedly connected to the movable window sash 21.

[0051] like Figures 10 to 11 As shown, when the drive structure is installed at the bottom of the window, it further includes a fifth sprocket 27, a second chain 28, and a connector 29. The second chain 28 is disposed between the first chain 4 and the movable window sash 21. One end of the second chain 28 is connected to the first chain 4 via the connector 29, and the other end is fixedly connected to the movable window sash 21. The pins of the first chain 4 and the second chain 28 are perpendicular to each other. The first chain on the same side passes around the third sprocket 7 and the fifth sprocket 27 before connecting to the second chain 28.

[0052] The working process and principle of the present invention are as follows: the present invention drives the screw rod 2 through the motor 1, thereby driving the drive block 3 to slide left and right on the screw rod 2, and then pulling the first chain 4 on the front and rear sides to realize the lifting and lowering operation of the movable window sash 21. This driving structure abandons the huge volume of the counterweight block and further simplifies the driving structure, thereby achieving less space occupied inside the top frame and expanding the window field of view. In addition, the present solution is provided with a second guide rail 21 and an adjustment plate 22 at the rear side of the screw rod 2. By adjusting the position of the adjustment plate 22 on the second guide rail 21, the position of the second sprocket 6 is locked, and then the length of the first chain 4 on the rear side is adjusted, and finally the left and right balance of the movable window sash 21 is adjusted. The present invention also has the advantages of simple structure, convenient operation and easy implementation.

[0053] The above embodiments are preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A chain-type drive structure for a lifting window, characterized in that: The system comprises a motor, a screw, a drive block, a first chain, a first sprocket, and a second sprocket; the output end of the motor is connected to the screw; the drive block is mounted on the screw and is threadedly connected to the screw; the first sprocket is symmetrically mounted on the drive block, located on the front and rear sides of the screw; The first chain adopts a double first chain design, which is installed on the front and back sides of the screw rod respectively; One end of the first chain on the front side is fixed, and the other end is connected to the movable window sash after passing through the first sprocket on the same side; the second sprocket is installed on the rear side of the screw rod near one end of the motor; one end of the first chain on the rear side is fixed, and the other end is connected to the movable window sash after passing through the first sprocket and the second sprocket on the same side.

2. The chain drive structure for lifting windows according to claim 1, characterized in that: The driving structure further includes a third sprocket; the third sprocket is mounted on the left and right sides of the top frame; the first chain on the same side passes around the third sprocket and is connected to the movable window sash.

3. The chain-type driving structure for lifting windows according to claim 1, characterized in that: The driving structure also includes a first guide rail and a slider; the first guide rail is arranged below the screw rod, the slider is installed on the first guide rail and is fixedly connected to the driving block; the driving block is driven by the screw rod and slides back and forth on the first guide rail under the guidance of the slider.

4. The chain-type driving structure for lifting windows according to claim 3, characterized in that: The driving structure also includes a guide rail base and a screw rod base; the first guide rail is installed on the guide rail base, and both ends of the guide rail base are fixedly connected to the screw rod base; the two ends of the screw rod are respectively rotatably connected to the screw rod base.

5. The chain-type driving structure for lifting windows according to claim 1, characterized in that: The driving block includes a moving block, a connecting block, and a supporting block; one side of the connecting block is fixed to the supporting block, and the other side is fixed to the moving block; the moving block is installed on the screw rod and is threadedly connected to the screw rod; the supporting blocks are installed in pairs on the front and rear sides of the connecting block, and the paired supporting blocks are connected by shafts; the first sprocket is installed on the shaft.

6. The chain-type driving structure for lifting windows according to claim 5, characterized in that: A concave cavity is provided in the connecting block, and openings are provided on the top and one side of the connecting block.

7. The chain-type driving structure for lifting windows according to claim 4, characterized in that: The guide rail base includes a support plate, a first support bar, and a second support bar; the first support bar is arranged at the bottom of the support plate, respectively located at the front and rear sides of the support plate, and is integrally formed with the support plate; the second support bar is arranged in the middle of the support plate and is integrally formed with the support plate; the second support bars are arranged in pairs, the bottom of which is flush with the bottom of the first support bar, and the top extends upward and penetrates the support plate and then protrudes upward; the first guide rail is clamped between the two second support bars.

8. The chain-type driving structure for lifting windows according to claim 1, characterized in that: The driving structure also includes a fourth sprocket; the fourth sprocket is installed on the front side of the screw rod near one end of the motor; one end of the first chain on the front side is fixed, and the other end passes around the first sprocket and the fourth sprocket on the same side and is connected to the movable window sash.

9. The chain-type driving structure for lifting windows according to claim 1, characterized in that: The driving structure also includes a second guide rail, an adjustment plate, and a bracket for adjusting the position of the second sprocket; the second guide rail is arranged on the side; the adjustment plate is clamped in the second guide rail and can slide in the second guide rail; the bracket is installed on the adjustment plate and clamps the second sprocket on the adjustment plate.

10. The chain-type driving structure for lifting windows according to claim 2, characterized in that: When the driving structure is installed at the bottom, it also includes a fifth sprocket, a second chain, and a connecting piece; the second chain is arranged between the first chain and the movable window sash, one end of which is connected to the first chain through the connecting piece, and the other end is fixedly connected to the movable window sash; the pin shaft of the first chain and the pin shaft of the second chain are perpendicular to each other; the first chain on the same side passes around the third sprocket and the fifth sprocket and then connects to the second chain.

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