Chain type centered driving structure

Abstract

The utility model discloses a chain type central driving structure which mainly comprises a motor, lead screws symmetrically arranged on the left side and the right side of the motor, a driving block, a first chain and a first chain wheel. According to the scheme, the double-head motor is arranged in the middle and synchronously drives the lead screws arranged on the left side and the right side. And the driving blocks connected with the screw rod move in the same direction or back to back direction under the rotation of the screw rod. When the two driving blocks move in the opposite directions, the movable window sash connected with the first chain is pulled by the first chain wheel to slowly ascend, and therefore window closing operation is achieved. When the two driving blocks move back to back, the movable window sash is driven by the first chain and the first chain wheel to descend slowly, and therefore window opening operation is achieved. 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 centering drive 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 for the lift window, partially obstructing the view and affecting its 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 centering drive structure for lifting windows.

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

[0006] A chain-type central drive structure mainly includes a motor, a screw rod symmetrically arranged on the left and right sides of the motor, a drive block, a first chain, and a first sprocket. The motor is centrally arranged and has a left output end and a right output end. The left output end is transmission-connected to the left screw rod, and the right output end is transmission-connected to the right screw rod. The drive block is mounted on the screw rod and is threadedly connected to the screw rod. The first sprocket is symmetrically mounted on the drive block and is located on the front and rear sides of the screw rod. The first chain adopts a double first chain design and is respectively mounted on the front and rear sides of the screw rod. One end of the first chain is fixed, and the other end is connected to the movable window sash after passing around the first sprocket on the same side.

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

[0008] Furthermore, the drive structure further includes a guide rail and a slider. The guide rail is disposed below the screw, and the slider is mounted on the guide rail and fixedly connected to the drive block. The drive block is driven by the screw and slides back and forth on the 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 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] Furthermore, four grooves are provided in the cavity, and the grooves extend downward from the top of the cavity to the bottom.

[0013] 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.

[0014] Furthermore, the guide rail base includes a support plate, a first support bar, and a second support bar. The first support bar is disposed 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 disposed 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 guide rail is clamped between the two second support bars.

[0015] 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.

[0016] Furthermore, the driving structure further includes a third sprocket. The third sprocket is mounted on the locking block, located at the front and rear sides of the screw rod, and connected to the first chain on the same side.

[0017] Furthermore, when the drive structure is installed at the bottom of the window, it further includes a fourth sprocket, a second chain, and a connector. The second chain is disposed between the first chain and the movable window sash, with one end connected to the first chain via the connector and the other end connected to the movable window sash. The pins of the first chain and the second chain are perpendicular to each other. The first chain on the same side passes around the first, second, and fourth sprockets before connecting to the second chain.

[0018] The working process and principle of the present invention are as follows: a dual-headed motor is provided in the middle portion of the present invention to simultaneously and synchronously drive the screws provided on the left and right sides. Drive blocks connected to the screws move toward or away from each other as the screws rotate. When the two drive blocks move toward each other, the movable window sash connected to the first chain slowly rises under the pull of the first sprocket, thereby achieving the window closing operation. When the two drive blocks move away from each other, the movable window sash slowly descends under the drive of the first chain and the first sprocket, thereby achieving the window opening operation. The present invention also has the advantages of a simple structure, convenient operation, and ease of implementation.

[0019] Compared with the prior art, the present invention also has the following advantages:

[0020] (1) The chain-type central drive structure provided by the present invention adopts a centrally arranged motor to simultaneously drive the screw rods on both sides, thereby allowing the movable window sash to rise or fall. This method greatly saves the working stroke of the drive block and the motor, and is convenient for saving space in the drive structure, thereby reducing the area occupied by the window frame, which is conducive to further narrowing the window frame and further widening the window field of view.

[0021] (2) The chain-type central drive structure provided by the present invention is connected to one side of the movable window sash by a single-side double first chain drive. Compared with the existing technology, the stability of the movable window sash during the lifting process is significantly enhanced, making the lifting process smoother and more evenly stressed, without swaying.

[0022] (3) The chain-type center drive structure 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

[0023] Figure 1 This is a front view of the chain-type central driving structure provided by the utility model.

[0024] Figure 2 It is a three-dimensional diagram of the chain-type central driving structure provided by the utility model.

[0025] Figure 3 This is a front view of the drive structure provided by the utility model (after removing the first chain).

[0026] Figure 4 It is a structural diagram of the driving structure provided by the utility model.

[0027] Figure 5 It is a three-dimensional diagram of the driving structure provided by the utility model (after removing the first chain).

[0028] Figure 6It is a structural schematic diagram of the driving block provided by the utility model.

[0029] Figure 7 It is a three-dimensional diagram of the guide rail base provided by the utility model.

[0030] Figure 8 It is a side view of the guide rail base provided by the utility model.

[0031] Figure 9 It is a structural schematic diagram of the third sprocket and the locking block provided by the utility model.

[0032] Figure 10 It is a structural schematic diagram of the second sprocket provided by the utility model.

[0033] Figure 11 It is a three-dimensional diagram of the chain-type central driving structure (when installed at the bottom) provided by the utility model.

[0034] Figure 12 yes Figure 11 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-guide rail, 8-slider, 9-guide rail base, 10-screw base, 11-moving block, 12-connecting block, 13-support block, 14-concave cavity, 15-groove, 16-reducer, 17-coupling, 18-support plate, 19-first support bar, 20-second support bar, 21-locking block, 22-third sprocket, 23-movable window sash, 24-fourth sprocket, 25-second chain, 26-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 10As shown, this embodiment discloses a chain-type central drive structure, which mainly includes a motor 1, a screw rod 2 symmetrically arranged on the left and right sides of the motor 1, a drive block 3, a first chain 4, and a first sprocket 5. The motor 1 is centrally arranged and has a left output end and a right output end. The left output end is transmission-connected to the left screw rod 2, and the right output end is transmission-connected to the right screw rod 2. 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 back sides of the screw rod 2. The first chain 4 adopts a double first chain design and is respectively mounted on the front and back sides of the screw rod 2. One end of the first chain 4 is fixed, and the other end is connected to the movable window sash 23 after passing around the first sprocket 5 on the same side.

[0040] Furthermore, the driving structure further comprises a second sprocket 6. The second sprocket 6 is mounted on the left and right sides of the top frame. The first chain 4 on the same side passes around the first sprocket 5 and the second sprocket 6 and is connected to the movable window sash 23.

[0041] Furthermore, the drive structure further includes a guide rail 7 and a slider 8. The guide rail 7 is disposed below the screw 2, and the slider 8 is mounted on the guide rail 7 and fixedly connected to the drive block 3. The drive block 3 is driven by the screw 2 and slides back and forth on the guide rail 7 under the guidance of the slider 8.

[0042] Furthermore, the driving structure further comprises a guide rail base 9 and a screw base 10. The guide rail 7 is mounted on the guide rail base 9, and both ends of the guide rail base 9 are fixedly connected to the screw base 10. Both ends of the screw 2 are rotatably connected to the screw base 10.

[0043] Furthermore, the driving block 3 includes a moving block 11, a connecting block 12, and a support block 13. One side of the connecting block 12 is fixed to the support block 13, and the other side is fixed to the moving block 11. The moving block 11 is mounted on the screw rod 2 and is threadedly connected to the screw rod 2. The support blocks 13 are mounted in pairs on the front and rear sides of the connecting block 12, and the paired support blocks 13 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 14 is provided in the connecting block 12 , and openings are provided on the top and one side of the connecting block 12 .

[0045] Furthermore, four grooves 15 are provided in the cavity 14. The grooves 15 extend downward from the top of the cavity 14 to the bottom.

[0046] Furthermore, the drive structure further includes a reducer 16 and a coupling 17. One end of the reducer 16 is connected to the output end of the motor 1, and the other end is connected to one end of the coupling 17. The other end of the coupling 17 is in driving connection with the screw rod 2.

[0047] Furthermore, the guide rail base 9 includes a support plate 18, a first support bar 19, and a second support bar 20. The first support bar 19 is disposed at the bottom of the support plate 18, located at the front and rear sides of the support plate 18, and is integrally formed with the support plate 18. The second support bar 20 is disposed in the middle of the support plate 18 and is integrally formed with the support plate 18. The second support bars 20 are arranged in pairs, with their bottoms flush with the bottoms of the first support bars 19 and their tops extending upward, penetrating the support plate 18, and then protruding upward. The guide rail 7 is clamped between the two second support bars 20.

[0048] Furthermore, the driving structure further includes a locking block 21. The locking block 21 is mounted on the guide rail base 9 and fixedly connected to the guide rail base 9. One end of the first chain 4 is fixedly connected to the locking block 21, and the other end is fixedly connected to the movable window sash 23.

[0049] Furthermore, the driving structure further includes a third sprocket 22. The third sprocket 22 is mounted on the locking block 21, located at the front and rear sides of the screw rod 2, and connected to the first chain 4 on the same side.

[0050] Furthermore, when the drive structure is installed at the bottom of the window, it further includes a fourth sprocket, a second chain, and a connector. The second chain is disposed between the first chain and the movable window sash, with one end connected to the first chain via the connector and the other end connected to the movable window sash. The pins of the first chain and the second chain are perpendicular to each other. The first chain on the same side passes around the first, second, and fourth sprockets before connecting to the second chain.

[0051] like Figures 11 to 12 As shown, the drive structure, when installed at the bottom of the window, further includes a fourth sprocket 24, a second chain 25, and a connector 26. The second chain 25 is disposed between the first chain 4 and the movable window sash 23, with one end connected to the first chain 4 via the connector 26 and the other end connected to the movable window sash 23. The pins of the first chain 4 and the second chain 26 are perpendicular to each other. The first chain 4 on the same side passes around the first sprocket 5, the second sprocket 6, and the fourth sprocket 24 before connecting to the second chain 25.

[0052] The working process and principle of the present utility model are as follows: the present utility model is provided with a double-headed motor 1 in the middle, which simultaneously and synchronously drives the screw rods 2 provided on the left and right sides. The drive blocks 3 connected to the screw rods 2 move toward or away from each other under the rotation of the screw rods 2. When the two drive blocks 3 move toward each other, the movable window sash 23 connected to the first chain 4 is pulled by the first sprocket 5, thereby achieving the window closing operation. When the two drive blocks 3 move away from each other, the movable window sash 23 is slowly lowered by the drive of the first chain 4 and the first sprocket 5, thereby achieving the window opening operation. The present utility model also has the advantages of simple structure, convenient operation, and ease of 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 centering drive structure, characterized in that: The motor comprises a motor, screw rods symmetrically arranged on the left and right sides of the motor, a drive block, a first chain, and a first sprocket; the motor is centrally arranged and has a left output end and a right output end; the left output end is transmission-connected to the left screw rod, and the right output end is transmission-connected to the right screw rod; The driving block is mounted on the screw rod and is threadedly connected to the screw rod; the first sprocket is symmetrically mounted on the driving block, located at the front and rear sides of the screw rod; The first chain adopts a double first chain design and is respectively installed on the front and rear sides of the screw rod; one end of the first chain is fixed, and the other end is connected to the movable window sash after passing through the first sprocket on the same side.

2. The chain-type centering drive structure according to claim 1, characterized in that: The driving structure further includes a second sprocket; the second sprocket is mounted on the left and right sides of the top frame; the first chain on the same side passes around the first and second sprockets and then connects to the movable window sash.

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

4. The chain-type centering drive structure according to claim 3, characterized in that: The driving structure also includes a guide rail base and a screw rod base; the 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 centering drive structure 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 centering drive structure 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 centering drive structure according to claim 1, characterized in that: The driving structure also 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 transmission.

8. The chain-type centering drive structure 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 guide rail is clamped between the two second support bars.

9. The chain-type centering drive structure according to claim 4, characterized in that: The driving structure also includes a locking block; the locking block is installed on the guide rail base and fixedly connected to the guide rail base; one end of the first chain is connected and fixed to the locking block, and the other end is connected and fixed to the movable window sash.

10. The chain-type centering drive structure according to claim 2, characterized in that: When the driving structure is installed at the bottom, it also includes a fourth 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 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 first sprocket, the second sprocket, and the fourth sprocket and then is connected to the second chain.

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