Shutter structure capable of being freely contracted

Abstract

The utility model relates to the technical field of shutters, in particular to a freely retractable shutter structure, which comprises fixed frames arranged in pairs, positioning grooves arranged in the fixed frames along the length direction, a plurality of shaft holes arranged in the positioning grooves at equal intervals, driving chain grooves and control chain grooves arranged on two sides of the fixed frames corresponding to the positioning grooves, a sliding groove corresponding to the control chain groove is formed outside the fixed frame; the transmission chain is matched between the two guide wheels through the driving chain groove and the control chain groove; a plurality of blade wheels are arranged on the positioning groove and are meshed with the transmission chain; one end of the blade shaft penetrates through the blade wheel and the corresponding shaft hole, the other end of the blade shaft is provided with a universal ball sleeve, and the blade shaft is matched with the blade wheel through a spline; universal ball heads matched with the universal ball sleeves are arranged at the two ends of the telescopic blades respectively. The utility model is composed of a pair of fixed frames and a plurality of telescopic blades, so that the structure is simpler, and the compatibility is stronger.

Description

Technical Field

[0001] The utility model relates to the technical field of shutters, in particular to a shutter structure which can be freely retracted. Background Art

[0002] For many years, people have used blinds to control indoor light, privacy, security, environmental protection and aesthetics. However, due to the variety of window sizes, in order to make the size of the blinds match the window style, it is a long-term need to be able to manufacture a blind that can be freely extended to adapt to the window size. Utility Model Content

[0003] The utility model provides a freely retractable shutter structure, which is composed of a pair of fixed frames and a plurality of telescopic blades, so the structure is simpler and the compatibility is stronger. The fixed frame includes components of the control and transmission parts, and the components are assembled to form a whole. Therefore, during the installation process, only two fixed frames need to be installed on both sides of the window, and the telescopic blades can be installed one by one in the appropriate position to complete the installation of the shutter.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a freely retractable shutter structure, comprising: a fixed frame, the fixed frames are arranged in pairs, and each of the fixed frames is provided with a positioning groove along the length direction, a plurality of axial holes are arranged equidistantly in the positioning groove, guide wheels are respectively provided at both ends of the fixed frame corresponding to the positioning groove, a driving chain groove and a control chain groove are provided on both sides of the fixed frame corresponding to the positioning groove, and a sliding groove is provided on the outside of the fixed frame corresponding to the control chain groove; a transmission chain, the transmission chain is matched between the two guide wheels through the driving chain groove and the control chain groove; Blade wheel, the blade wheels are multiple and arranged on the positioning groove, and each of the blade wheels is respectively engaged with the transmission chain in the drive chain groove; a blade shaft, one end of the blade shaft passes through the blade wheel and the corresponding shaft hole, and the other end is provided with a universal ball sleeve, and the blade shaft and the blade wheel are matched through a spline; telescopic blades, the telescopic blades are horizontally arranged between the two fixed frames, and both ends of each of the telescopic blades are respectively provided with a universal ball head adapted to the universal ball sleeve; a control slider, the control slider is slidably fitted in the slide groove and connected to the corresponding area of ​​the transmission chain.

[0005] Preferably, a first silent strip is provided along the length direction of the driving chain slot at one side away from the positioning slot, and the driving chain is slidably matched with the first silent strip.

[0006] Preferably, a second mute strip is provided along the length direction on one side of the control chain slot close to the positioning slot, and the second mute strip is used to isolate the meshing of the transmission chain and each of the blade wheels.

[0007] Preferably, the telescopic blade is formed by inserting a blade core and a blade shell, and a spring is provided between the inside of the blade shell and the end of the blade core.

[0008] Preferably, the transmission chain is provided with breaks, and the control slider is connected between the breaks.

[0009] The utility model has the beneficial effect that the shutter is composed of a pair of fixed frames and a plurality of telescopic blades, so the structure is simpler and the compatibility is stronger. The fixed frame contains the components of the control and transmission parts, and forms a whole after assembly. Therefore, during the installation process, only two fixed frames need to be installed on both sides of the window, and the telescopic blades can be installed one by one in the appropriate position to complete the installation of the shutter. In the adjustment process of the fixed frame, only the blade shaft needs to be taken out, and the position of each blade wheel can be rolled to adjust, so as to determine the installation position of the telescopic blade. When the blade wheel is in place, the blade shaft can be reinserted. In the modification and production process of the fixed frame, the appropriate length can be freely intercepted to adapt to different window sizes, and through the installation angle of the telescopic blade, other special window contours other than rectangles can also be adapted, such as trapezoids, triangles, rhombuses, parallelograms, etc. The first mute strip isolates the inner wall of the transmission chain and the drive chain groove, and ensures that the blade wheel can be effectively engaged with the transmission chain whether in the working state or in the adjustment state. The second mute bar provides stable mechanical support for the control slider, and also reduces the difficulty of installing the transmission chain and the slider through the isolation function. Under the action of the spring, the telescopic blades are pressed against the corresponding universal ball sleeves through the universal ball heads at both ends, so it is easy to disassemble and assemble the telescopic blades. In addition, in order to improve the stability of the telescopic blades in the in-place state, the blade shell and the blade core can be fastened by adding machine screws. The control slider is provided with teeth adapted to the transmission chain, so that the transmission chain can be connected by meshing with the transmission chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 This is a cross-sectional view of the overall structure of the utility model;

[0012] Figure 2This is a schematic diagram of the middle structure of the fixed frame of the utility model;

[0013] Figure 3 This is a schematic diagram of the fixed frame end structure of the utility model;

[0014] In the figure: 1. fixed frame; 2. positioning groove; 3. shaft hole; 4. guide wheel; 5. drive chain groove; 6. control chain groove; 7. slide groove; 8. transmission chain; 9. blade wheel; 10. blade shaft; 11. universal ball sleeve; 12. telescopic blade; 13. universal ball head; 14. control slider; 15. first silent strip; 16. second silent strip; 17. blade core; 18. blade shell; 19. spring. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] according to Figure 1 , Figure 2 , Figure 3 As shown, a freely retractable shutter structure comprises: a fixed frame 1, the fixed frames 1 are arranged in pairs, and each of the fixed frames 1 is provided with a positioning groove 2 along the length direction, a plurality of axial holes 3 are arranged equidistantly in the positioning groove 2, guide wheels 4 are respectively provided at the two ends of the fixed frame 1 corresponding to the positioning groove 2, a driving chain groove 5 and a control chain groove 6 are provided on both sides of the fixed frame 1 corresponding to the positioning groove 2, and a sliding groove 7 is provided on the outside of the fixed frame 1 corresponding to the control chain groove 6; a transmission chain 8, the transmission chain 8 is matched between the two guide wheels 4 through the driving chain groove 5 and the control chain groove 6; a blade wheel 9, the blade wheel 9 is provided in plurality, and And arranged on the positioning groove 2, each of the blade wheels 9 is respectively engaged with the transmission chain 8 in the drive chain groove 5; a blade shaft 10, one end of the blade shaft 10 passes through the blade wheel 9 and the corresponding shaft hole 3, and the other end is provided with a universal ball sleeve 11, and the blade shaft 10 and the blade wheel 9 are splined; telescopic blades 12, the telescopic blades 12 are horizontally arranged between the two fixed frames 1, and the two ends of each of the telescopic blades 12 are respectively provided with a universal ball head 13 adapted to the universal ball sleeve 11; a control slider 14, the control slider 14 is slidably fitted in the slide groove 7, and is connected to the corresponding area of ​​the transmission chain 8.

[0017] In the above arrangement, the shutter is composed of a pair of fixed frames 1 and a plurality of telescopic blades 12, so the structure is simpler and the compatibility is stronger. The fixed frame 1 contains the components of the control and transmission parts, and forms a whole after assembly. Therefore, during the installation process, only two fixed frames 1 need to be installed on both sides of the window, and the telescopic blades 12 can be installed one by one in the appropriate position to complete the installation of the shutter. In the adjustment process of the fixed frame 1, only the blade shaft 10 needs to be taken out, and the position of each blade wheel 9 can be adjusted by rolling, so as to determine the installation position of the telescopic blade 12. When the blade wheel 9 is in place, the blade shaft 10 can be reinserted. In the modification and production process of the fixed frame 1, the appropriate length can be freely intercepted to adapt to different window sizes, and through the installation angle of the telescopic blade 12, other special window contours other than rectangles can also be adapted, such as trapezoids, triangles, rhombuses, parallelograms, etc.

[0018] A first silent strip 15 is provided along the length direction of the driving chain slot 5 at one side away from the positioning slot 2 , and the driving chain 8 is slidably matched with the first silent strip 15 .

[0019] The first silent strip 15 in this arrangement isolates the transmission chain 8 from the drive chain slot 5 and ensures that the blade wheel 9 can be effectively in meshing with the transmission chain 8 whether in the working state or in the adjustment state.

[0020] A second silent strip 16 is provided along the length direction on one side of the control chain slot 6 close to the positioning slot 2 , and the second silent strip 16 is used to isolate the meshing of the transmission chain 8 and each of the blade wheels 9 .

[0021] This arrangement can provide stable mechanical support for the control slider 14 and reduce the difficulty of installing the transmission chain 8 and the slider through the isolation function.

[0022] The telescopic blade 12 is formed by inserting a blade core 17 and a blade shell 18 , and a spring 19 is provided between the blade shell 18 and the end of the blade core 17 .

[0023] In this arrangement, the telescopic blade 12 is pressed against the corresponding universal ball sleeve 11 through the universal ball heads 13 at both ends under the action of the spring 19, so it is convenient to disassemble and assemble the telescopic blade 12. In addition, in order to improve the stability of the telescopic blade 12 in the in-place state, the blade shell 18 and the blade core 17 can be fastened by adding machine screws.

[0024] The transmission chain 8 is provided with breaks, and the control slider 14 is connected between the breaks.

[0025] In this configuration, the control slider 14 is provided with teeth adapted to the transmission chain 8 , so that the transmission chain 8 is connected by meshing with the transmission chain 8 .

[0026] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A freely retractable shutter structure, characterized in that ,include: A fixed frame (1), wherein the fixed frames (1) are arranged in pairs, and each of the fixed frames (1) is provided with a positioning groove (2) along the length direction, and a plurality of axial holes (3) are arranged at equal intervals in the positioning groove (2), and guide wheels (4) are respectively provided at both ends of the fixed frame (1) corresponding to the positioning groove (2), and a driving chain groove (5) and a control chain groove (6) are provided on both sides of the fixed frame (1) corresponding to the positioning groove (2), and a sliding groove (7) is provided on the outside of the fixed frame (1) corresponding to the control chain groove (6); A transmission chain (8), wherein the transmission chain (8) is engaged between the two guide wheels (4) via the drive chain groove (5) and the control chain groove (6); a blade wheel (9), wherein the blade wheel (9) is provided in plurality and arranged on the positioning groove (2), and each blade wheel (9) is respectively engaged with the transmission chain (8) in the driving chain groove (5); a blade shaft (10), one end of the blade shaft (10) passes through the blade wheel (9) and the corresponding shaft hole (3), the other end of the blade shaft (10) is provided with a universal ball sleeve (11), and the blade shaft (10) and the blade wheel (9) are matched via a spline; Telescopic blades (12), the telescopic blades (12) being horizontally arranged between the two fixed frames (1), and both ends of each telescopic blade (12) being respectively provided with a universal ball head (13) adapted to the universal ball sleeve (11); A control slider (14) is slidably fitted in the slide groove (7) and connected to a corresponding area of ​​the transmission chain (8).

2. A freely retractable shutter structure according to claim 1, characterized in that: A first silent strip (15) is provided along the length direction on one side of the drive chain slot (5) away from the positioning slot (2), and the transmission chain (8) is slidably matched with the first silent strip (15).

3. The freely retractable shutter structure according to claim 1, characterized in that: A second silent strip (16) is provided along the length direction on one side of the control chain slot (6) close to the positioning slot (2), and the second silent strip (16) is used to isolate the meshing of the transmission chain (8) and each of the blade wheels (9).

4. The freely retractable shutter structure according to claim 1, characterized in that: The telescopic blade (12) comprises a blade core (17) and a blade shell (18) which are plugged together, and a spring (19) is provided between the inside of the blade shell (18) and the end of the blade core (17).

5. The freely retractable shutter structure according to claim 1, characterized in that: The transmission chain (8) is provided with breaks, and the control slider (14) is connected between the breaks.

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