Volute spiral spring load connecting structure, load assembly and free hovering curtain

Abstract

The utility model discloses a volute spiral spring load connecting structure which comprises a load component, a connecting clamping block and a shaft clamping block, the load component comprises a connecting shaft and at least one load applying body, the connecting shaft is provided with a shaft clamping groove, the load applying body comprises a sleeve and a load installing plate, the load installing plate is provided with a load clamping groove, and the shaft clamping block is connected with the sleeve. The load mounting plate is arranged on the side portion of the sleeve, the sleeve sleeves the connecting shaft and is used for applying resistance to the connecting shaft when rotating relative to the connecting shaft, an applying body clamping groove is formed in one end of the sleeve, an applying body clamping block capable of being matched with the applying body clamping groove is arranged at the other end of the sleeve, and the connecting clamping block and the shaft clamping block are arranged on the balance force component. The connecting clamping block is matched with the applying body clamping groove close to the connecting clamping block, and the shaft clamping block is matched with the shaft clamping groove. The utility model further discloses a load assembly and a free hovering curtain. Compared with the prior art, the balance force adjustment of the existing balance force assembly in a one-point range is realized by connecting the load.

Description

Technical Field

[0001] The utility model relates to the technical field of curtain accessories, in particular to a scroll spring load connection 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, while existing cordless curtain balancing assemblies have addressed some of the challenges of traditional curtains, they still face numerous challenges in practical applications. In light of this, a scroll spring load connection mechanism, a load assembly, and a free-hovering curtain are provided. Utility Model Content

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

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

[0008] A scroll spring load connection structure includes a load component, a connecting block and an axis block, the load component includes a connecting shaft and at least one load applying body, the connecting shaft is provided with an axis slot, the load applying body includes a sleeve and a load mounting plate, the load mounting plate is provided with a load slot, the load mounting plate is arranged on the side of the sleeve, 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, one end of the sleeve is provided with an applying body slot, and the other end is provided with an applying body block that can cooperate with the applying body slot, the connecting block and the axis block are provided on the balancing force component, the connecting block cooperates with the applying body slot close to it, and the axis block cooperates with the axis slot.

[0009] In a preferred embodiment, there are more than two connecting blocks, and each of the load applying bodies is provided with more than two applying body blocks.

[0010] In a preferred embodiment, the sides of the shaft block, the connection block and the application body block are arranged at an angle, the shaft block and the shaft slot are adapted to each other, the application body slot and the connection block are adapted to each other, and the application body block and the application body slot are adapted to each other.

[0011] In a preferred embodiment, the top of one end of the shaft clamping block, the connection clamping block and the application body clamping block is provided with a chamfer or a rounded corner, and chamfers or rounded corners are provided on both sides of the chamfer or the rounded corner.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] A load assembly includes the scroll spring load connection structure and a balancing force component, wherein the balancing force component 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, a balancing force slot is provided on the balancing force mounting plate, 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, multiple scroll springs are installed on the scroll spring shaft, the shaft block is provided on the scroll spring shaft, and the connecting block is provided at one end of the balancing force component.

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

[0018] Compared to the prior art, the present invention achieves load application by providing a load member and a connection structure between the load member and the balancing force member. Specifically, during use, the combined load member and balancing force member are installed in the curtain aluminum tube, and the load application body applies resistance to the rotation of the connecting shaft. The connecting shaft is connected to the balancing force member, and the balancing force member is used to balance the weight of the curtain. When the load member is not provided, to achieve the balance of the gravity of different curtains, corresponding spiral springs of various specifications are required. After the load member is provided, the balancing force of the balancing force member 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] In the utility model, the connection between the load component and the balancing force component is achieved by cooperating the connecting block with the applying body slot close to it, and the shaft block with the shaft slot. The connection structure is stable, and after the connection, the scroll spring shaft and the connecting shaft can rotate relative to the balancing force mounting plate and the load applying body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a load component of the present invention (first viewing angle).

[0021] Figure 2 This is a structural schematic diagram of a load component of the present invention (second viewing angle).

[0022] Figure 3 This is a schematic diagram of the disassembly structure of a load component involved in the utility model.

[0023] Figure 4 The utility model is a structural schematic diagram of a scroll spring load generating mechanism (containing only one load applying body).

[0024] 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.

[0025] In the picture

[0026] 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

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] 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.

[0029] like Figures 1 to 5 As shown, a scroll spring load connection structure includes a load component, a connecting block 18 and a shaft block 13, the load component includes a connecting shaft 1 and at least one load applying body 6, the connecting shaft 1 is provided with a shaft slot 2, 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 slot 9 is used to cooperate with the block in the curtain aluminum tube to achieve the installation and fixation of the load mounting plate 8, 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, the connecting block 18 and the shaft block 13 are provided on the balancing force component, the connecting block 18 cooperates with the applying body slot 10 close to it, and the shaft block 13 cooperates with the shaft slot 2.

[0030] The scroll spring load connection structure of this embodiment achieves load application by providing a load member and a connection structure between the load member and the balancing force member. Specifically, during use, the combined load member and the balancing force member are installed in the curtain aluminum tube, and the load application body 6 applies resistance to the rotation of the connecting shaft 1. The connecting shaft 1 is connected to the balancing force member, which is used to balance the weight of the curtain. When the load member is not provided, to achieve the balance of the gravity of different curtains, scroll springs of various specifications are required. After the load member is provided, the balancing force of the balancing force member 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.

[0031] 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 the load. By adjusting the number of load applying bodies 6, different loads can be adjusted.

[0032] In the present invention, the connection between the load component and the balancing force component is achieved by cooperating the connecting block 18 with the applying body slot 10 close thereto, and the shaft block 13 with the shaft slot 2. The connection structure is stable, and after the connection, the scroll spring shaft 12 and the connecting shaft 1 can rotate relative to the balancing force mounting plate 14 and the load applying body 6.

[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 connection between 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] Furthermore, the applying body card slot 10 is connected to the edge of the load mounting plate 8 , thereby facilitating the sliding in of the applying body card block 11 .

[0035] In order to further improve the stability of the structure, at least two connection blocks 18 are provided, and each load applying body 6 is provided with at least two applying body blocks 11 .

[0036] The sides of the shaft clamp 13, the connecting clamp 18 and the application body clamp 11 are arranged at an angle, the shaft clamp 13 is adapted to the shaft clamp groove 2, the application body clamp groove 10 is adapted to the connecting clamp 18, and the application body clamp 11 is adapted to the application body clamp groove 10 to form a dovetail joint matching structure, thereby achieving a stable connection.

[0037] The tops of one end of the shaft clamping block 13 , the connecting clamping block 18 and the application body clamping block 11 are provided with chamfers or fillets, and both sides of the chamfers or fillets are provided with chamfers or fillets to facilitate entry into corresponding clamping slots.

[0038] 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 .

[0039] 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.

[0040] 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 .

[0041] 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.

[0042] 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.

[0043] In order to achieve structural stability, a plurality of damping members 3 are provided and are evenly distributed around the connecting shaft 1 .

[0044] This embodiment also provides a load assembly, including the scroll spring load connection structure, and also includes a balancing force component, the balancing force component includes a scroll spring shaft 12, multiple balancing force mounting plates 14, a reinforcing rod 16, multiple scroll springs and terminals 17, the multiple balancing force mounting plates 14 and terminals 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 multiple balancing force mounting plates 14 and the terminals 17, the terminals 17 are components connected to the curtain fixing bracket, the reinforcing rod 16 connects the multiple balancing force mounting plates 14 and the terminals 17, the multiple scroll springs are installed on the scroll spring shaft 12, the shaft clamp 13 is provided on the scroll spring shaft 12, and the connecting clamp 18 is provided at one end of the balancing force component. When in use, the balancing force component and the load component are integrated and installed together in the curtain aluminum tube. The card block in the curtain aluminum tube cooperates with the balancing force slot 15 and the load slot 9. The spiral spring is used to provide the main balancing function, and the load component is used to realize the adjustment of the balancing force.

[0045] This embodiment also provides a free-hanging curtain, including the load assembly.

[0046] 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 loaded connection structure, characterized in that: It includes a load component, a connecting block and an axis block, the load component includes a connecting shaft and at least one load applying body, the connecting shaft is provided with an axis slot, the load applying body includes a sleeve and a load mounting plate, the load mounting plate is provided with a load slot, the load mounting plate is arranged on the side of the sleeve, 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, one end of the sleeve is provided with an applying body slot, and the other end is provided with an applying body block capable of cooperating with the applying body slot, the connecting block and the axis block are provided on the balancing force component, the connecting block cooperates with the applying body slot close to it, and the axis block cooperates with the axis slot.

2. A scroll spring load connection structure according to claim 1, characterized in that: There are more than two connection blocks, and each load applying body is provided with more than two applying body blocks.

3. The scroll spring load connection structure according to claim 1, characterized in that: The sides of the shaft clamping block, the connecting clamping block and the applying body clamping block are arranged obliquely, the shaft clamping block is adapted to the shaft clamping slot, the applying body clamping slot is adapted to the connecting clamping block, and the applying body clamping block is adapted to the applying body clamping slot.

4. The scroll spring load connection structure according to claim 1, characterized in that: The tops of one ends of the shaft clamping block, the connection clamping block and the application body clamping block are provided with chamfers or rounded corners, and chamfers or rounded corners are provided on both sides of the chamfers or rounded corners.

5. The scroll spring load connection structure 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.

6. The scroll spring load connection structure 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.

7. The scroll spring load connection structure according to claim 6, 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.

8. The scroll spring load connection structure according to claim 7, 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.

9. A load assembly, characterized in that: The scroll spring load connection structure includes any one of claims 1 to 8, and also includes a balancing force component, wherein the balancing force component 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, a balancing force slot is provided on the balancing force mounting plate, 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, multiple scroll springs are installed on the scroll spring shaft, the shaft block is provided on the scroll spring shaft, and the connecting block is provided at one end of the balancing force component.

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

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