Double-layer constant-force spring type cordless honeycomb curtain

Abstract

The present invention discloses a double-layer constant-force spring type cordless honeycomb curtain, which includes a curtain body and a mounting frame arranged at the upper part of the curtain body; a mounting groove is arranged on the mounting frame; a first spring assembly and a second spring assembly are arranged in the mounting groove; the first spring assembly is located above the second spring assembly. The honeycomb curtain of the present invention adopts double-layer constant-force springs. Compared with a single constant-force spring, the honeycomb curtain can have a larger designable length range, avoiding the situation that the honeycomb curtain is not suitable for the application scenario due to length limitations, and greatly improving the application range of the honeycomb curtain.

Description

Technical Field

[0001] The present invention relates to the technical field of honeycomb curtains, and particularly to a double-layer constant-force spring type cordless honeycomb curtain. Background Art

[0002] The unique honeycomb design of the honeycomb curtain enables air to be stored in the hollow layer, keeping the room at a constant temperature and saving air-conditioning electricity costs. Its anti-ultraviolet and heat-insulating functions effectively protect household items, and it has anti-static treatment and is easy to wash. The pull cord is hidden in the hollow layer, with a perfect appearance, making it simpler and more practical for customers to use than traditional devices.

[0003] The existing honeycomb curtains use a pull cord to control the lifting and lowering of the curtain body to adjust its shading height and lighting level. A relatively large force is required to pull the pull cord, and the operation is troublesome. The exposed pull cord may accidentally entangle the human body, such as around the neck, posing a safety hazard, especially to parents and children, and also affecting the aesthetics. For a few honeycomb curtains that utilize gravity balance, their internal components and the direction of the force applied to them are prone to deviation, resulting in poor performance and stability of the louver curtain, affecting its service life and leading to a poor user experience. Based on this, how to design a double-layer constant-force spring type cordless honeycomb curtain is the technical problem to be solved by the present invention. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a double-layer constant-force spring type cordless honeycomb curtain.

[0005] The present invention solves the above technical problems through the following technical means:

[0006] The double-layer constant-force spring type cordless honeycomb curtain includes a curtain body and a mounting bracket provided at the upper part of the curtain body; a mounting groove is provided on the mounting bracket; a first spring assembly and a second spring assembly are provided in the mounting groove; the first spring assembly is located above the second spring assembly;

[0007] The first spring assembly includes a first constant-force spring, a first movable pulley module, a first fixed pulley module, and a first connecting rope; the first fixed pulley module is fixed on one side of the mounting groove; the first movable pulley module is slidably mounted in the mounting groove; one end of the first constant-force spring is connected to the first movable pulley module, and the other end is fixed on the side of the mounting groove away from the first fixed pulley module;

[0008] The second spring assembly includes a second constant force spring, a second movable pulley module, a second fixed pulley module, a second connecting rope, and a third fixed pulley; the second fixed pulley module is fixed to one side of the installation groove; the second movable pulley module is slidably installed in the installation groove; one end of the second constant force spring is connected to the second movable pulley module; the third fixed pulley is fixed to the side of the installation groove away from the second fixed pulley module; one end of the first connecting rope is fixed to the first fixed pulley module, and the other end passes around the first fixed pulley module, the first movable pulley module, and the third fixed pulley and is connected to the end of the second constant force spring away from the second movable pulley module; one end of the second connecting rope passes around the second fixed pulley module and the second movable pulley module and is connected to one side of the curtain body; the other end of the second connecting rope passes around the second fixed pulley module and the second movable pulley module and is connected to the other side of the curtain body.

[0009] Preferably, for the double-layer constant force spring type cordless honeycomb curtain, the curtain body includes an upper cross plate, a lower cross plate, and a curtain panel group; the upper cross plate and the lower cross plate are arranged opposite to each other up and down; the curtain panel group is arranged between the upper cross plate and the lower cross plate, and its upper end is fixed to the upper cross plate and the lower end is fixed to the lower cross plate; both ends of the second connecting rope pass through the upper cross plate and the curtain panel group and are fixed to the lower cross plate; a first magnetic block is arranged on the upper cross plate; a second magnetic block is installed on the mounting bracket; the upper cross plate and the mounting bracket are detachably connected by the cooperation of the first magnetic block and the second magnetic block.

[0010] Preferably, for the double-layer constant force spring type cordless honeycomb curtain, the first fixed pulley module includes a plurality of first mounting plates fixed to the side wall of the installation groove and first fixed pulleys arranged between adjacent first mounting plates; the second fixed pulley module includes a plurality of second mounting plates fixed to the side wall of the installation groove and second fixed pulleys arranged between adjacent second mounting plates.

[0011] Preferably, for the double-layer constant force spring type cordless honeycomb curtain, the first movable pulley module includes a first sliding frame slidably installed in the installation groove, a plurality of third mounting plates fixed to the first sliding frame, and first movable pulleys arranged between adjacent third mounting plates; the second movable pulley module includes a second sliding frame slidably installed in the installation groove, a plurality of fourth mounting plates fixed to the second sliding frame, and second movable pulleys arranged between adjacent fourth mounting plates.

[0012] Preferably, for the double-layer constant force spring type cordless honeycomb curtain, a first slideway and a second slideway are arranged on the inner wall of the installation groove; the first sliding frame and the second sliding frame are correspondingly arranged in the first slideway and the second slideway.

[0013] Preferably, for the double-layer constant-force spring type cordless honeycomb curtain, the number of the first fixed pulleys is a, the number of the first movable pulleys is b, and a = b ≥ 3; the number of the second fixed pulleys is m, the number of the second movable pulleys is n, and m = n ≥ 3.

[0014] Preferably, for the double-layer constant-force spring type cordless honeycomb curtain, pull rings are provided on the inner walls of the first sliding frame, the second sliding frame and the installation groove, and hooks cooperating with the pull rings are provided at both ends of the first constant-force spring and the second constant-force spring.

[0015] The advantages of the present invention are as follows: The honeycomb curtain of the present invention adopts double-layer constant-force springs. Compared with a single constant-force spring, the honeycomb curtain can have a larger designable length range, avoiding the situation that the honeycomb curtain is not suitable for the application scenario due to length limitations, and greatly improving the application range of the honeycomb curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention.

[0017] Figure 2 is a schematic structural diagram when the curtain body of the present invention is unfolded.

[0018] Figure 3 is a schematic structural diagram when the curtain body of the present invention is pulled down from the upper end of the curtain body.

[0019] Figure 4 is a schematic position diagram of the first spring assembly and the second spring assembly of the present invention.

[0020] Figure 5 is a schematic structural diagram of the first spring assembly of the present invention.

[0021] Figure 6 is a schematic structural diagram of the second spring assembly of the present invention.

[0022] Figure 7 is a schematic structural diagram of the installation groove of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Example 1. Referring to the attached drawings, a double-layer constant-force spring type cordless honeycomb curtain includes a curtain body 1 and a mounting bracket 2 provided at the upper part of the curtain body 1; a mounting groove 21 is provided on the mounting bracket 2; a first spring assembly 3 and a second spring assembly 4 are provided in the mounting groove 21; the first spring assembly 3 is located above the second spring assembly 4;

[0025] The first spring assembly 3 includes a first constant-force spring 31, a first movable pulley module 32, a first fixed pulley module 33 and a first connecting rope 34; the first fixed pulley module 33 is fixed on one side of the mounting groove 21; the first movable pulley module 32 is slidably mounted in the mounting groove 21; one end of the first constant-force spring 31 is connected to the first movable pulley module 32, and the other end is fixed on the side of the mounting groove 21 away from the first fixed pulley module 33;

[0026] The second spring assembly 4 includes a second constant-force spring 41, a second movable pulley module 42, a second fixed pulley module 43, a second connecting rope 44 and a third fixed pulley 45; the second fixed pulley module 43 is fixed on one side of the mounting groove 21; the second movable pulley module 42 is slidably mounted in the mounting groove 21; one end of the second constant-force spring 41 is connected to the second movable pulley module 42; the third fixed pulley 45 is fixed on the side of the mounting groove 21 away from the second fixed pulley module 43; one end of the first connecting rope 34 is fixed on the first fixed pulley module 33, and the other end is connected to the end of the second constant-force spring 41 away from the second movable pulley module 42 after passing around the first fixed pulley module 33, the first movable pulley module 32 and the third fixed pulley 45; one end of the second connecting rope 44 is connected to one side of the curtain body 1 after passing around the second fixed pulley module 43 and the second movable pulley module 42; the other end of the second connecting rope 44 is connected to the other side of the curtain body 1 after passing around the second fixed pulley module 43 and the second movable pulley module 42;

[0027] A constant-force spring is a spring that can maintain a constant elastic force within a corresponding stroke, also known as a constant-tension spring. Its usage mode is linear motion. Compared with ordinary compression or tension springs, its elastic force is very constant and can output an elastic force close to a straight line, ensuring that the product will not change due to changes in elastic force during use;

[0028] When the honeycomb curtain body 1 is in a balanced state, the gravity it receives is equal to the sum of the constant elastic forces generated by the first constant-force spring 31 and the second constant-force spring 41. According to parameters such as the width and length of the curtain body 1 and factors such as the constant elastic forces and strokes of the first constant-force spring 31 and the second constant-force spring 41, calculations and multiple experimental tests are carried out to measure the length and width of the curtain body 1 corresponding to the sum of the constant elastic forces of the first constant-force spring 31 and the second constant-force spring 41, so that the gravity received by the curtain body 1 is equal to the sum of the constant elastic forces of the first constant-force spring 31 and the second constant-force spring 41, and the force balance makes it in a balanced state when it is stationary, that is, the curtain body 1 will not move up and down without external forces; when it is necessary to open the honeycomb curtain, hold the bottom of the curtain body 1 by hand and apply a downward force to it. The curtain body 1 moves downward. When the force application stops, the curtain body 1 will stop moving and be in a stationary and balanced state because the gravity received by the curtain body 1 is equal to the sum of the constant elastic forces generated by the first constant-force spring 31 and the second constant-force spring 41; when it is necessary to retract the honeycomb curtain, lift the bottom of the curtain body 1 upward by hand. The curtain body 1 moves upward. When the upward force application stops, the curtain body 1 will stop moving and be in a stationary and balanced state. That is to say, by applying a force to the curtain body 1 by hand to change its position in the vertical direction, that is, the mutual conversion of kinetic energy and gravitational potential energy, the opening and retracting degrees of the honeycomb curtain are adjusted. When there is no external force intervention, because the gravity received by the curtain body 1 is equal to the sum of the constant elastic forces generated by the first constant-force spring 31 and the second constant-force spring 41, the curtain body 1 is in a stationary and balanced state; through the cooperation of the first spring assembly 3 and the second spring assembly 4, compared with the method of using a single-layer constant-force spring, the length of the honeycomb curtain is greatly increased, so that the designable length range of the honeycomb curtain is larger, avoiding the situation that the honeycomb curtain is not suitable for the application scenario due to length limitation, and greatly improving the application range of the honeycomb curtain;

[0029] The honeycomb curtain of the present invention adopts a double-layer constant-force spring. Compared with a single constant-force spring, the designable length range of the honeycomb curtain is larger, avoiding the situation that the honeycomb curtain is not suitable for the application scenario due to length limitation, and greatly improving the application range of the honeycomb curtain.

[0030] Preferably, the curtain body 1 includes an upper cross plate 11, a lower cross plate 12 and a curtain sheet group 13; the upper cross plate 11 and the lower cross plate 12 are arranged opposite to each other up and down; the curtain sheet group 13 is arranged between the upper cross plate 11 and the lower cross plate 12, and its upper end is fixed on the upper cross plate 11 and the lower end is fixed on the lower cross plate 12; both ends of the second connecting rope 44 pass through the upper cross plate 11 and the curtain sheet group 13 and are fixed on the lower cross plate 12; a first magnet 111 is arranged on the upper cross plate 11; a second magnet 22 is installed on the mounting bracket 2; the upper cross plate 11 and the mounting bracket 2 are detachably connected through the cooperation of the first magnet 11 and the second magnet 22;

[0031] The upper cross plate 11 and the mounting bracket 2 are detachably connected through the cooperation of the first magnet 11 and the second magnet 22. During use, the upper cross plate 1 can be held and pulled downward to create a space between the curtain body 1 and the mounting bracket 2. Only the lower part of the curtain body 1 is blocked, and the space between the curtain body 1 and the mounting bracket 2 is not blocked, meeting different usage requirements.

[0032] Preferably, the first fixed pulley module 33 includes a plurality of first mounting plates 331 fixed on the side wall of the mounting groove 21, and first fixed pulleys 332 arranged between adjacent first mounting plates 331; the second fixed pulley module 43 includes a plurality of second mounting plates 431 fixed on the side wall of the mounting groove 21, and second fixed pulleys 432 arranged between adjacent second mounting plates 431;

[0033] Through the arrangement of the first mounting plate 331 and the second mounting plate 431, the first fixed pulley 332 and the second fixed pulley 432 are respectively fixed on the inner wall of the mounting groove 21, realizing the installation and fixation of the first fixed pulley 332 and the second fixed pulley 432.

[0034] Preferably, the first movable pulley module 32 includes a first sliding frame 321 slidably installed in the mounting groove 21, a plurality of third mounting plates 322 fixed on the first sliding frame 321, and first movable pulleys 323 arranged between adjacent third mounting plates 322; the second movable pulley module 42 includes a second sliding frame 421 slidably installed in the mounting groove 21, a plurality of fourth mounting plates 422 fixed on the second sliding frame 421, and second movable pulleys 423 arranged between adjacent fourth mounting plates 422;

[0035] By slidably installing the first sliding frame 321 in the mounting groove 21, the sliding of the first movable pulley module 32 is realized. Through the arrangement of the third mounting plate 322, the first movable pulley 323 is installed on the first sliding frame 321. The first movable pulley 323 and the first fixed pulley 332 cooperate to wind the first connecting rope 34; the second movable pulley module 42 and the first movable pulley module 32 have the same principle of action.

[0036] Of course, in order to enable the first sliding frame 321 and the second sliding frame 421 to slide in the mounting groove 21, first sliding ways 211 and second sliding ways 212 are provided on the inner wall of the mounting groove 21;

[0037] Preferably, the number of the first fixed pulleys 332 is a, the number of the first movable pulleys 323 is b, and a = b ≥ 3; the number of the second fixed pulleys 432 is m, the number of the second movable pulleys 423 is n, and m = n ≥ 3;

[0038] The first fixed pulley 332, the first movable pulley 323, the second fixed pulley 432, and the second movable pulley 423 are designed to be more than three, so that the first connecting rope 34 and the second connecting rope 44 are wound into multiple strands to share the gravity of the curtain body 1, improve the force-bearing stability and the use stability, and ensure the service life.

[0039] Preferably, pull rings 213 are provided on the inner walls of the first sliding frame 321, the second sliding frame 421, and the installation groove 21, and hooks 311 adapted to the pull rings 213 are provided at both ends of the first constant force spring 31 and the second constant force spring 41;

[0040] Through the cooperation of the pull rings 213 and the hooks 311, it is used to realize the connection between the first constant force spring 31 and the first sliding frame 321 and the inner wall of the installation groove 21, and the connection between the second constant force spring 41 and the second sliding frame 421 and the inner wall of the installation groove 21.

[0041] It should be noted that in this article, if there are relational terms such as first and second, they are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Double-layer constant-force spring type cordless honeycomb curtain, Characterized in that: It includes a curtain body (1) and a mounting bracket (2) arranged at the upper part of the curtain body (1); a mounting groove (21) is arranged on the mounting bracket (2); a first spring assembly (3) and a second spring assembly (4) are arranged in the mounting groove (21); the first spring assembly (3) is located above the second spring assembly (4); The first spring assembly (3) includes a first constant-force spring (31), a first movable pulley module (32), a first fixed pulley module (33) and a first connecting rope (34); the first fixed pulley module (33) is fixed on one side of the mounting groove (21); the first movable pulley module (32) is slidably installed in the mounting groove (21); one end of the first constant-force spring (31) is connected to the first movable pulley module (32), and the other end is fixed on the side of the mounting groove (21) away from the first fixed pulley module (33); The second spring assembly (4) includes a second constant force spring (41), a second movable pulley module (42), a second fixed pulley module (43), a second connecting rope (44), and a third fixed pulley (45); the second fixed pulley module (43) is fixed to one side of the installation groove (21); the second movable pulley module (42) is slidably installed in the installation groove (21); one end of the second constant force spring (41) is connected to the second movable pulley module (42); the third fixed pulley (45) is fixed to the side of the installation groove (21) away from the second fixed pulley module (43); one end of the first connecting rope (34) is fixed to the first fixed pulley module (33), and the other end passes around the first fixed pulley module (33), the first movable pulley module (32), and the third fixed pulley (45) and is connected to the end of the second constant force spring (41) away from the second movable pulley module (42); one end of the second connecting rope (44) passes around the second fixed pulley module (43) and the second movable pulley module (42) and is connected to one side of the curtain body (1); the other end of the second connecting rope (44) passes around the second fixed pulley module (43) and the second movable pulley module (42) and is connected to the other side of the curtain body (1); the curtain body (1) includes an upper cross plate (11), a lower cross plate (12), and a curtain panel group (13); the upper cross plate (11) and the lower cross plate (12) are arranged opposite to each other up and down; the curtain panel group (13) is arranged between the upper cross plate (11) and the lower cross plate (12), and its upper end is fixed to the upper cross plate (11), and the lower end is fixed to the lower cross plate (12); both ends of the second connecting rope (44) pass through the upper cross plate (11) and the curtain panel group (13) and are fixed to the lower cross plate (12); a first magnet (111) is arranged on the upper cross plate (11); a second magnet (22) is installed on the mounting bracket (2); the upper cross plate (11) and the mounting bracket (2) are detachably connected by the cooperation of the first magnet (111) and the second magnet (22); the first fixed pulley module (33) includes a plurality of first mounting plates (331) fixed to the side wall of the installation groove (21) and first fixed pulleys (332) arranged between adjacent first mounting plates (331); the second fixed pulley module (43) includes a plurality of second mounting plates (431) fixed to the side wall of the installation groove (21) and second fixed pulleys (432) arranged between adjacent second mounting plates (431).

2. The double-layer constant force spring type cordless honeycomb curtain according to claim 1, characterized in that: The first movable pulley module (32) includes a first sliding frame (321) slidably mounted in the mounting groove (21), a plurality of third mounting plates (322) fixed to the first sliding frame (321), and a first movable pulley (323) disposed between adjacent third mounting plates (322); the second movable pulley module (42) includes a second sliding frame (421) slidably mounted in the mounting groove (21), a plurality of fourth mounting plates (422) fixed to the second sliding frame (421), and a second movable pulley (423) disposed between adjacent fourth mounting plates (422).

3. The double-layer constant force spring type cordless honeycomb curtain according to claim 2, wherein: a first slideway (211) and a second slideway (212) are provided on the inner wall of the mounting groove (21); the first sliding frame (321) and the second sliding frame (421) are correspondingly disposed in the first slideway (211) and the second slideway (212).

4. The double-layer constant force spring type cordless honeycomb curtain according to claim 2, wherein: the number of the first fixed pulleys (332) is a, the number of the first movable pulleys (323) is b, and a = b ≥ 3; the number of the second fixed pulleys (432) is m, the number of the second movable pulleys (423) is n, and m = n ≥ 3.

5. The double-layer constant force spring type cordless honeycomb curtain according to claim 2, wherein: pull rings (213) are provided on the inner walls of the first sliding frame (321), the second sliding frame (421) and the mounting groove (21), and hooks (311) matching with the pull rings (213) are provided at both ends of the first constant force spring (31) and the second constant force spring (41).

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