Volute spiral spring load generating mechanism, load assembly and free hovering curtain

Abstract

The utility model discloses a volute spiral spring load generating mechanism which comprises a connecting shaft and at least one load applying body, the load applying body comprises a sleeve and a load mounting plate, the load mounting plate is provided with a load clamping groove, the load mounting plate is arranged on the side portion of the sleeve, the sleeve is arranged on the connecting shaft in a sleeved mode, and the load clamping groove is arranged on the connecting shaft. The sleeve is used for applying resistance to the connecting shaft when the sleeve rotates relative to the connecting shaft, an applying body clamping groove is formed in one end of the sleeve, and an applying body clamping block capable of being matched with the applying body clamping groove is arranged at the other end of the sleeve. The utility model further discloses a load assembly and a free hovering curtain. Compared with the prior art, the balance force component has the advantage that the balance force can be adjusted within a certain range aiming at the existing balance force component.

Description

Technical Field

[0001] The utility model relates to the technical field of curtain accessories, in particular to a scroll spring load generating mechanism, a load component and a free-suspending curtain. Background Art

[0002] Patent number CN201922411348.0 discloses a balancing force assembly for cordless curtains, which discloses the following technical solution: A balancing force assembly for cordless curtains, relating to the field of cordless curtain accessories, includes a coil spring guard, a coil spring shaft, and a spring. The coil spring guard includes an end, two reinforcing ribs, and a fixed disc. One end of each of the two reinforcing ribs is fixedly connected to the end, and the two reinforcing ribs are arranged correspondingly. A plurality of fixed discs are equidistantly arranged between the two reinforcing ribs, and the center of each fixed disc is provided with a perforation. The spring is spiral-shaped, and one end located at the center of the spring has a mounting hole, and the other end located at the outside is bent with an arc-shaped buckle. According to the utility model, the spring can automatically balance the elastic force according to the length of the curtain being pulled down, so that the elastic force and the weight of the curtain being pulled out are offset, so that the device can stably and reliably output torque to the outside, achieving the purpose of fixing the curtain length. At the same time, the number of springs installed can be adjusted according to the weight of the curtain, so that the torque generated by the multiple springs can be adapted to the weight of the curtain.

[0003] In actual production, precisely balancing the weight of curtains requires preparing a variety of springs of varying specifications for selection based on actual conditions. This means manufacturers need to produce and store a large number of spare springs, increasing production costs and management complexity. Furthermore, in practice, the weight of curtains can vary depending on factors such as material and thickness, making subtle adjustments difficult to achieve with existing designs. Consequently, in some cases, even with the appropriate spring replacement, achieving the desired balance may not be achieved.

[0004] Furthermore, since the performance parameters of each spring (such as the spring constant) are fixed and difficult to change once selected, this limits the flexibility of the system to some extent. For those who want to adjust the curtain state according to seasonal changes or personal preferences, this lack of adjustability is obviously not user-friendly.

[0005] In summary, although existing cordless curtain balancing force assemblies have solved the problems of traditional curtains to a certain extent, they still face many challenges in practical application. In view of this, a scroll spring load generating mechanism, load assembly, and free-hovering curtain are proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a scroll spring load generating mechanism, a load component and a free-suspending curtain, which can adjust the balancing force within a certain range for an existing balancing force component.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] A scroll spring load generating mechanism includes a connecting shaft and at least one load applying body, the load applying body including a sleeve and a load mounting plate, the load mounting plate being provided with a load slot, the load mounting plate being arranged on the side of the sleeve, the sleeve being sleeved on the connecting shaft and being used to apply resistance to the connecting shaft when relative rotation occurs with the connecting shaft, one end of the sleeve being provided with an applying body slot, and the other end being provided with an applying body block capable of cooperating with the applying body slot.

[0009] In a preferred embodiment, the load applying body includes two load mounting plates, and the two load mounting plates are respectively provided at two ends of the sleeve.

[0010] In a preferred embodiment, a damping member is provided between the inner wall of the sleeve and the outer wall of the connecting shaft, and the damping member is provided on the inner wall of the sleeve or the outer wall of the connecting shaft.

[0011] In a preferred embodiment, the damping member is configured to be sheet-shaped, and includes an adhesive layer and a damping layer provided on the adhesive layer, and the adhesive layer is adhered to the inner wall of the sleeve or the outer wall of the connecting shaft.

[0012] In a preferred embodiment, the adhesive layer is made of non-woven fabric, plastic or resin material, and the damping layer is made of fiber material.

[0013] In a preferred embodiment, a damping member is provided on the outer wall of the connecting shaft. The damping member is configured in a sheet shape and extends from one end of the connecting shaft to the other end.

[0014] In a preferred embodiment, a plurality of damping members are provided and are evenly distributed around the connecting shaft.

[0015] In a preferred embodiment, the application body slot is connected to the edge of the load mounting plate, a chamfer or fillet is provided on the top of one end of the application body block, chamfers or fillets are provided on both sides of the chamfer or fillet, the side of the application body block is inclined, and the application body slot is adapted to the shape of the application body block.

[0016] A load assembly includes the scroll spring load generating mechanism, and also includes a scroll spring shaft, multiple balancing force mounting plates, a reinforcing rod, multiple scroll springs and terminals. The multiple balancing force mounting plates and terminals are arranged in a straight line to form a columnar structure. The balancing force mounting plates are provided with balancing force slots. The scroll spring shaft passes through the multiple balancing force mounting plates and the terminals. The reinforcing rod connects the multiple balancing force mounting plates and the terminals. The multiple scroll springs are installed on the scroll spring shaft. The connecting shaft connects the scroll spring shaft.

[0017] A free-hanging curtain comprises the load assembly.

[0018] Compared with the prior art, the utility model provides a scroll spring load generating mechanism, which is used to generate load for the existing balancing force component. After assembly is completed, its connecting shaft is connected to the scroll spring shaft of the balancing force component and is installed in the curtain aluminum tube. The load applying body applies resistance to the rotation of the connecting shaft. The connecting shaft is connected to the balancing force component. The balancing force component is used to balance the weight of the curtain. When the load component is not set, in order to achieve the balance of the gravity of different curtains, scroll springs of various specifications are required. After the load component is set, the balancing force of the balancing force component can be adjusted within a certain area by applying damping, thereby reducing the required spring specifications, reducing production costs, and improving the adaptability of the curtain state.

[0019] Specifically, during operation, when the curtain moves up or down, the balancing force component will be driven to move. The movement of the balancing force component will drive the connecting shaft and the sleeve to rotate relative to each other. Since the sleeve is mounted on the connecting shaft, it will apply resistance to the rotation of the connecting shaft, thereby achieving the application of load.

[0020] When there are more than two load applying bodies, for the stability of the structure, the load applying bodies need to be connected into one body, and the stability of adjacent load applying bodies is achieved through the cooperation of the load applying body slots and the load applying body blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a load component of the present invention (first viewing angle).

[0022] Figure 2 This is a structural schematic diagram of a load component of the present invention (second viewing angle).

[0023] Figure 3 This is a schematic diagram of the disassembly structure of a load component involved in the utility model.

[0024] Figure 4 The utility model is a structural schematic diagram of a scroll spring load generating mechanism (containing only one load applying body).

[0025] Figure 5 The utility model is a schematic diagram of the longitudinal cross-section structure of a damping member of a scroll spring load generating mechanism.

[0026] In the picture

[0027] Connecting shaft 1; shaft slot 2; damping member 3; adhesive layer 4; damping layer 5; load applying body 6; sleeve 7; load mounting plate 8; load slot 9; applying body slot 10; applying body block 11; scroll spring shaft 12; shaft block 13; balancing force mounting plate 14; balancing force slot 15; reinforcing rod 16; terminal 17; connecting block 18. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings.

[0029] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0030] like Figures 1 to 5 As shown, a scroll spring load generating mechanism includes a connecting shaft 1 and at least one load applying body 6, the load applying body 6 includes a sleeve 7 and a load mounting plate 8, the load mounting plate 8 is provided with a load slot 9, the load mounting plate 8 is arranged on the side of the sleeve 7, the sleeve 7 is sleeved on the connecting shaft 1, and is used to apply resistance to the connecting shaft 1 when relative rotation occurs with the connecting shaft 1, one end of the sleeve 7 is provided with an applying body slot 10, and the other end is provided with an applying body block 11 that can cooperate with the applying body slot 10.

[0031] A scroll spring load generating mechanism of this embodiment is used to generate a load for an existing balancing force component. After assembly, its connecting shaft 1 is connected to the scroll spring shaft 12 of the balancing force component and is installed in the curtain aluminum tube. The load applying body 6 applies resistance to the rotation of the connecting shaft 1. The connecting shaft 1 is connected to the balancing force component. The balancing force component is used to balance the weight of the curtain. When the load component is not set, in order to achieve the balance of the gravity of different curtains, scroll springs of various specifications are required. After the load component is set, the balancing force of the balancing force component can be adjusted within a certain area by applying damping, thereby reducing the required spring specifications, reducing production costs, and improving the adaptability of the curtain state.

[0032] Specifically, during operation, when the curtain moves up or down, the balancing force component will be driven to move. The movement of the balancing force component will drive the connecting shaft 1 and the sleeve 7 to rotate relative to each other. Since the sleeve 7 is sleeved on the connecting shaft 1, it will apply resistance to the rotation of the connecting shaft 1, thereby realizing the application of load.

[0033] When there are more than two load applying bodies 6 , for structural stability, the load applying bodies 6 need to be connected into one body. The stability of adjacent load applying bodies 6 is achieved through the cooperation of the load applying body slots 10 and the load applying body blocks 11 .

[0034] Adjustment of different loads can be achieved by adjusting the number of load applying bodies 6 .

[0035] In the above structural setting, the load card slot 9 is used to cooperate with the card block in the curtain aluminum tube to achieve the installation and fixation of the load mounting plate 8.

[0036] Furthermore, in order to effectively maintain the stability of the structure, the load applying body 6 includes two load mounting plates 8 , and the two load mounting plates 8 are respectively provided at both ends of the sleeve 7 .

[0037] To achieve a good damping effect, a damping member 3 is provided between the inner wall of the sleeve 7 and the outer wall of the connecting shaft 1. The damping member 3 is provided on the inner wall of the sleeve 7 or the outer wall of the connecting shaft 1. The provision of the damping member 3 achieves damping. Specifically, when the sleeve 7 and the connecting shaft 1 rotate relative to each other, the damping member 3 applies resistance to the inner wall of the sleeve 7 or the outer wall of the connecting shaft 1, thereby generating damping.

[0038] Specifically, the damping member 3 is configured to be sheet-shaped, and includes an adhesive layer 4 and a damping layer 5 provided on the adhesive layer 4 . The adhesive layer 4 is adhered to the inner wall of the sleeve 7 or the outer wall of the connecting shaft 1 .

[0039] Specifically, the adhesive layer 4 is made of non-woven fabric, plastic or resin material, and the damping layer 5 is made of fiber material. In actual applications, the materials of the adhesive layer 4 and the damping layer 5 are not limited to the materials listed in the embodiment, as long as they can achieve their functional purposes.

[0040] In this embodiment, the damping member 3 is provided on the outer wall of the connecting shaft 1 . The damping member 3 is configured in a sheet shape and extends from one end of the connecting shaft 1 to the other end.

[0041] In order to achieve structural stability, a plurality of damping members 3 are provided and are evenly distributed around the connecting shaft 1 .

[0042] Furthermore, the applying body slot 10 is connected to the edge of the load mounting plate 8, so as to facilitate the sliding in of the applying body block 11. The top of one end of the applying body block 11 is provided with a chamfer or a fillet, and chamfers or fillets are provided on both sides of the chamfer or the fillet to facilitate the smooth entry of the applying body block 11. The side of the applying body block 11 is tilted, and the applying body slot 10 is adapted to the shape of the applying body block 11. The applying body block 11 and the applying body slot 10 form a dovetail joint matching structure, thereby realizing a stable connection between adjacent load applying bodies 6.

[0043] In order to further improve the stability of the structure, more than two application body clamping blocks 11 and more than two application body clamping slots 10 are provided, and the more than two application body clamping slots 10 are provided in parallel.

[0044] This embodiment also provides a load assembly, including the scroll spring load generating mechanism, and further including a scroll spring shaft 12, a plurality of balancing force mounting plates 14, a reinforcing rod 16, a plurality of scroll springs, and a terminal 17. The plurality of balancing force mounting plates 14 and the terminal 17 are arranged in a straight line to form a columnar structure. The balancing force mounting plates 14 are provided with a balancing force slot 15. The scroll spring shaft 12 passes through the plurality of balancing force mounting plates 14 and the terminal 17. The terminal 17 is a component connected to the curtain fixing bracket. The reinforcing rod 16 connects the plurality of balancing force mounting plates 14 and the terminal 17. The plurality of scroll springs are mounted on the scroll spring shaft 12. The connecting shaft 1 connects the scroll spring shaft 12. When in use, the balancing force component and the load component are integrated and installed together in the curtain aluminum tube. The block in the curtain aluminum tube cooperates with the balancing force slot 15 and the load slot 9. The scroll spring is used to provide the main balancing function, and the load component is used to adjust the balancing force.

[0045] In order to realize the connection between the balancing force component and the load component, a shaft clamping block 13 is provided at one end of the spiral spring shaft 12, and a shaft clamping groove 2 is provided on the connecting shaft 1. The shaft clamping groove 2 passes through the end surface of the connecting shaft 1, and the shaft clamping block 13 cooperates with the shaft clamping groove 2.

[0046] One end of the balancing force member is provided with a connecting block 18 , and the connecting block 18 is matched with the applying body slot 10 adjacent thereto.

[0047] In order to maintain the stability of the structure, more than two connecting blocks 18 are provided.

[0048] Furthermore, the sides of the shaft clamp 13 and the connecting clamp 18 are arranged at an angle, the shaft clamp 13 and the shaft clamp groove 2 are adapted to each other, the application body clamp groove 10 and the connecting clamp 18 are adapted to each other, the shaft clamp 13 and the shaft clamp groove 2 form a dovetail tenon matching structure, and the connecting clamp 18 and the application body clamp groove 10 form a dovetail tenon matching structure.

[0049] In order to enable the connecting block 18 to smoothly enter the application body slot 10 and the shaft block 13 to smoothly enter the shaft slot 2, the top of one end of the connecting block 18 and the shaft block 13 is provided with a chamfer or fillet, and chamfers or fillets are provided on both sides of the chamfer or fillet.

[0050] Through the above structural arrangement, the connecting shaft 1 and the scroll spring shaft 12 are stably connected, and the balancing force mounting plate 14 and the load applying body 6 are stably connected.

[0051] This embodiment also provides a free-hanging curtain, including the load assembly.

[0052] The above description of the embodiments is intended to facilitate understanding and use of the present invention by those skilled in the art. It is apparent that those skilled in the art can readily make various modifications to the embodiments and apply the general principles described herein to other embodiments without requiring creative effort. Therefore, the present invention is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should fall within the scope of protection of the present invention.

Claims

1. A scroll spring load generating mechanism, characterized in that: The load applying body includes a connecting shaft and at least one load applying body, wherein the load applying body includes a sleeve and a load mounting plate, wherein the load mounting plate is provided with a load slot, wherein the load mounting plate is provided on the side of the sleeve, and the sleeve is sleeved on the connecting shaft and is used to apply resistance to the connecting shaft when relative rotation occurs with the connecting shaft, wherein one end of the sleeve is provided with a load applying body slot, and the other end is provided with a load applying body block capable of cooperating with the load applying body slot.

2. A scroll spring load generating mechanism according to claim 1, characterized in that: The load applying body includes two load mounting plates, and the two load mounting plates are respectively arranged at two ends of the sleeve.

3. A scroll spring load generating mechanism according to claim 1, characterized in that: A damping member is provided between the inner wall of the sleeve and the outer wall of the connecting shaft, and the damping member is provided on the inner wall of the sleeve or the outer wall of the connecting shaft.

4. A scroll spring load generating mechanism according to claim 3, characterized in that: The damping member is configured to be sheet-shaped and includes an adhesive layer and a damping layer disposed on the adhesive layer. The adhesive layer is adhered to the inner wall of the sleeve or the outer wall of the connecting shaft.

5. A scroll spring load generating mechanism according to claim 4, characterized in that: The adhesive layer is made of non-woven fabric, plastic or resin material, and the damping layer is made of fiber material.

6. The scroll spring load generating mechanism according to claim 1, characterized in that: A damping member is provided on the outer wall of the connecting shaft. The damping member is configured in a sheet shape and extends from one end of the connecting shaft to the other end.

7. A scroll spring load generating mechanism according to claim 3 or 6, characterized in that: There are multiple damping members, which are evenly distributed around the connecting shaft.

8. The scroll spring load generating mechanism according to claim 1, characterized in that: The applying body slot is connected to the edge of the load mounting plate, a chamfer or fillet is provided on the top of one end of the applying body block, chamfers or fillets are provided on both sides of the chamfer or fillet, the side of the applying body block is inclined, and the applying body slot is adapted to the shape of the applying body block.

9. A load assembly, characterized in that: The vortex spring load generating mechanism comprises the vortex spring load generating mechanism described in any one of claims 1 to 8, and further comprises a vortex spring shaft, a plurality of balancing force mounting plates, a reinforcing rod, a plurality of vortex springs and terminals, wherein the plurality of balancing force mounting plates and terminals are arranged in a straight line to form a columnar structure, a balancing force slot is provided on the balancing force mounting plate, the vortex spring shaft passes through the plurality of balancing force mounting plates and the terminals, the reinforcing rod connects the plurality of balancing force mounting plates and the terminals, a plurality of the vortex springs are mounted on the vortex spring shaft, and the connecting shaft connects the vortex spring shaft.

10. A free-hanging curtain, characterized in that: Comprising the load assembly according to claim 9.

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