Shaft-penetrating type spring structure and sun-shading device

Abstract

The utility model relates to a shaft penetrating type spring structure which comprises an upper rail assembly, a lower rail assembly and a spring assembly. The bearing plate is mounted at the bottom of the upper rail assembly; two T-shaped grooves are formed in the face, back on to the upper rail, of the bearing plate side by side. The at least one spring box is detachably connected with the bearing plate; the spring box comprises a box body, a cover plate, a first clamping pin, an alignment seat, a second clamping pin and a convex lug; the first clamping pin is matched and connected with the T-shaped groove; the second clamping pin is matched and connected with the T-shaped groove; and the alignment seat corresponds to the lug. The shaft penetrating type spring structure is simple in structure and convenient to use, the bearing plate is installed on the bottom face of the upper rail, a plurality of spring boxes can be installed in a spliced mode through the bearing plate, different elastic force ranges are effectively selected, and the shaft penetrating type spring structure flexibly adapts to curtains of different materials and different weights.

Description

Technical Field

[0001] This utility model relates to the field of sunshade device technology, and in particular to a through-shaft spring structure and a sunshade device having the through-shaft spring structure. Background Technology

[0002] Roller blinds, also known as semi-automatic blinds, are unique in that they feature a spring mechanism built into the tube. This innovative design has made them widely popular as a door and window decoration material. The essence of their operation lies in the clever use of the spring force wound around a roller as the core power source for driving the blind's raising and lowering.

[0003] Common spring blind designs often rely on a fixed single spring box structure. This structure has certain limitations in adjusting the spring force, with a relatively narrow adjustable range. Therefore, it is not very adaptable to curtains of different materials and weights, making it difficult to achieve precise matching and flexible adjustment. Utility Model Content

[0004] Therefore, in response to at least one of the above problems, this utility model provides a through-shaft spring structure and a sunshade device.

[0005] This utility model is achieved using the following solution:

[0006] This utility model proposes a through-shaft spring structure, characterized in that it includes:

[0007] The upper rail assembly includes an upper rail, a take-up and untake-up module mounted on the bottom surface of the upper rail, and a drive shaft rotatably connected to the take-up and untake-up module;

[0008] At least one spring box is detachably connected to the bottom surface of the upper rail; the spring box includes a housing, a first connecting structure connected to the housing, and a second connecting structure; the first connecting structure and the second connecting structure are correspondingly arranged, and the first connecting structure and the second connecting structure can be installed and connected to each other, thereby realizing the fixed connection of the two spring boxes.

[0009] In one embodiment, the through-shaft spring structure further includes a support plate installed at the bottom of the upper rail assembly. The support plate is installed on the bottom surface of the upper rail, and two T-slots are arranged side by side on the side of the support plate facing away from the upper rail. The two T-slots are arranged along the length direction of the support plate.

[0010] The housing includes a box body and a cover plate that matches and connects to the box body; the spring box also includes a first locking foot connected to opposite sides of the top surface of the box body and a second locking foot connected to opposite sides of the top surface of the cover plate; the first locking foot is T-shaped and matches and connects to a T-slot; the second locking foot is T-shaped and matches and connects to a T-slot, so that the spring box can be detachably connected to the support plate and thus detachably connected to the bottom surface of the upper rail.

[0011] In one embodiment, the take-up and unwinding module has two units and is installed at opposite ends of the bottom surface of the upper rail; the first connecting structure is a positioning seat, and the second connecting structure is a lug. The spring box has two lugs and two positioning seats. The two positioning seats are connected to opposite sides of the box body, and the two lugs are connected to opposite sides of the cover plate. When the two spring boxes are spliced ​​in the same direction, the box body of one spring box abuts against the cover plate of the other spring box. The lugs are screwed into the interior of the positioning seats by screws through them, thereby realizing the installation connection between the positioning seats and the lugs.

[0012] In one embodiment, the spring box further includes a first balance wheel rotatably mounted on the top of the box body, a second balance wheel rotatably mounted on the bottom of the box body, and a spiral spring connecting the first balance wheel and the second balance wheel; the drive shaft coaxially passes through the first balance wheel to drive the first balance wheel to rotate synchronously.

[0013] In one embodiment, the cross-section of the drive shaft is non-circular; the first balance wheel has a shaft hole along the axis of the first balance wheel, and the opening shape of the shaft hole matches the cross-sectional shape of the drive shaft.

[0014] In one embodiment, the spiral spring is S-shaped, with one end of the spiral spring fixedly connected to the first balance wheel and the other end of the spiral spring fixedly connected to the second balance wheel, such that the first balance wheel and the second balance wheel rotate in opposite directions.

[0015] In one embodiment, a receiving groove is recessed inward along the length of the upper rail at the center of the bottom surface of the upper rail; a boss is protruding along the length of the bearing plate at the center of the side of the bearing plate facing the upper rail, and the boss and the receiving groove are correspondingly engaged.

[0016] In one embodiment, the upper rail is provided with a plurality of assembly holes on the opposite sides of the receiving groove; the bearing plate is provided with a plurality of through grooves on the opposite sides of the boss, and the through grooves correspond one-to-one with the assembly holes.

[0017] In one embodiment, the drive shaft is a single shaft, which passes through the take-up / unwind module and the spring box; and / or

[0018] The mounting position of the take-up and unwind module on the bottom surface of the upper rail is adjustable.

[0019] This utility model also proposes a sunshade device, characterized in that it includes at least the through-shaft spring structure as described in any of the preceding claims.

[0020] The technical solution provided by this utility model has the following technical effects:

[0021] This utility model provides a through-axis spring structure, including at least one spring box detachably connected to the bottom surface of the upper rail; each spring box includes a housing, a first connecting structure connected to the housing, and a second connecting structure; the first connecting structure and the second connecting structure are correspondingly arranged and can be installed and connected to each other, thereby realizing a fixed connection between the two spring boxes; the above-mentioned through-axis spring structure is simple in structure, easy to use, and can splice and install multiple spring boxes, effectively selecting different elasticity ranges and flexibly adapting to curtains of different materials and weights; in this utility model, a through-axis structure with a single drive shaft is adopted, which is more convenient to splice multiple spring boxes than some other solutions where the drive shaft is composed of multiple segments, and has a higher load-bearing capacity; at the same time, the position of the lifting rope is also easy to adjust, which can adapt to curtains of different specifications. Attached Figure Description

[0022] Figure 1 This is a perspective view of a through-shaft spring structure according to an embodiment of the present invention;

[0023] Figure 2 This is a perspective view of the through-shaft spring structure of this embodiment from another angle;

[0024] Figure 3 This is a partially exploded view of the through-shaft spring structure of this embodiment;

[0025] Figure 4 for Figure 3 Enlarged view of circle A shown;

[0026] Figure 5 This is a perspective view of two spring boxes being spliced ​​together in the same direction in the through-shaft spring structure of this embodiment;

[0027] Figure 6 This is an exploded view of the spring box in this embodiment;

[0028] Figure 7 This is a perspective view of the sunshade device according to this embodiment of the present invention;

[0029] Figure 8 This is a perspective view of the sunshade device in this embodiment from another direction. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0033] Please see Figures 1 to 8 This embodiment provides a sunshade device 1, such as a curtain. The sunshade device 1 includes an upper rail assembly 10, a support plate 20, a spring box 30, a lifting rope 40, a curtain body 50, a cord tie 60, and a positioning ring 70. At least one spring box 30 is provided, and the support plate 20 is mounted on the bottom of the upper rail assembly 10. The upper rail assembly 10, the support plate 20, and the spring box 30 constitute the through-axis spring structure of the sunshade device 1.

[0034] The upper rail assembly 10 includes an upper rail 11, a take-up / delivery module 12 mounted on the bottom surface of the upper rail 11, and a drive shaft 13 rotatably connected to the take-up / delivery module 12; the drive shaft 13 has a non-circular cross-section. For example, in this embodiment, the drive shaft 13 has a hexagonal cross-section; two take-up / delivery modules 12 are provided and mounted at opposite ends of the bottom surface of the upper rail 11.

[0035] The spring box 30 includes a housing, a first connecting structure 34 connected to the housing, and a second connecting structure 36. In this embodiment, the housing includes a box body 31 and a cover plate 32 that matches and connects to the box body 31. The first connecting structure 34 and the second connecting structure 36 are correspondingly arranged and can be installed and connected to each other, thereby realizing the fixed connection of the two spring boxes 30. In this embodiment, the first connecting structure 34 is a mounting seat 34, and the second connecting structure 36 is a lug 36. The mounting seat 34 and the lug 36 can be installed and connected to each other. In some other embodiments, the first connecting structure 34 and the second connecting structure 36 can also be two mutually matching snap-fit ​​structures.

[0036] In this embodiment, the spring box 30 is provided with two aligning seats 34 and two lugs 36. The two aligning seats 34 are connected to opposite sides of the box body 31 away from the cover plate 32, and the two lugs 36 are connected to opposite sides of the cover plate 32. The aligning seats 34 and lugs 36 correspond to each other. When the two spring boxes 30 are spliced ​​in the same direction, the box body 31 of one spring box 30 abuts against the cover plate 32 of the other spring box 30. At this time, screws are used to thread the lugs 36 through them and screw them into the inside of the aligning seats 34, thereby realizing the installation connection between the aligning seats 34 and the lugs 36, and thus realizing the fixed connection between the two spring boxes 30.

[0037] The spring box 30 also includes a first balance wheel 37 rotatably mounted on the top of the box body 31, a second balance wheel 38 rotatably mounted on the bottom of the box body 31, and a spiral spring (not shown) connecting the first balance wheel 37 and the second balance wheel 38; the spiral spring is S-shaped, with one end of the spiral spring fixedly connected to the first balance wheel 37 and the other end of the spiral spring fixedly connected to the second balance wheel 38, so that the first balance wheel 37 and the second balance wheel 38 rotate in opposite directions.

[0038] The drive shaft 13 is coaxially mounted on the first balance wheel 37 to drive the first balance wheel 37 to rotate synchronously. Specifically, the first balance wheel 37 has a shaft hole 370 along its axial direction. The opening shape of the shaft hole 370 matches the cross-sectional shape of the drive shaft 13, so that the drive shaft 13 can drive the first balance wheel 37 to rotate synchronously.

[0039] like Figure 3 and Figure 4 As shown, the spring box 30 is detachably connected to the bottom surface of the upper rail 11. A receiving groove 14 is recessed inward along the length of the upper rail 11 at the center of the bottom surface of the upper rail 11. A plurality of assembly holes 15 are provided on the upper rail 11 on opposite sides of the receiving groove 14. The receiving groove 14 and the assembly holes 15 are used to position and connect the support plate 20.

[0040] A boss 21 protrudes from the center of the side of the support plate 20 facing the upper rail 11 along the length of the support plate 20, and the boss 21 corresponds to the receiving groove 14. A plurality of through grooves 22 are provided on the opposite sides of the boss 21 on the support plate 20. The through grooves 22 correspond one-to-one with the assembly holes 15. After bolts are inserted through the through grooves 22, they are screwed into the inside of the assembly holes 15, so that the support plate 20 can be fixedly installed on the bottom surface of the upper rail 11.

[0041] The support plate 20 has two T-slots 23 arranged side by side on the side facing away from the upper rail 11. The two T-slots 23 are arranged along the length of the support plate and are used to support the connecting spring box 30.

[0042] In this embodiment, the spring box 30 further includes a first latch 33 connected to opposite sides of the top surface of the box body 31 and a second latch 35 connected to opposite sides of the top surface of the cover plate 32. The first latch 33 is T-shaped and matches the T-slot 23 to achieve a detachable connection between the box body 31 and the support plate 20; the second latch 35 is T-shaped and matches the T-slot 23 to achieve a detachable connection between the cover plate 32 and the support plate 20, thereby enabling the spring box 30 to be detachably connected to the bottom surface of the upper rail 11. In practical use, different numbers of spring boxes 30 can be added to the support plate 20 according to requirements to effectively select different elasticity ranges and flexibly adapt to curtains of different materials and weights. Of course, in some other embodiments, other detachable structures, such as snap-fit ​​connections, can be used between the spring box 30 and the bottom surface of the upper rail 11.

[0043] See Figure 7 , Figure 8 In this embodiment, the lifting rope 40 can be gradually wound back by the retractable module 12, thereby causing the curtain 50 to close. The curtain 50 includes a bottom rod 51 at its lower end, which increases the overall weight of the curtain 50, making it easier for the curtain 50 to stay at the desired height. A cable tie 60 is connected to the lower end of the lifting rope 40, and the cable tie 60 is fixedly connected to the bottom rod 51.

[0044] When the bottom rod 51 of the curtain 50, which is in the retracted or partially retracted state, is pulled down, the curtain 50 unfolds from top to bottom. The bottom of the curtain 50 moves downward with the bottom rod 51, and the two lifting ropes 40 are released from the take-up and release module 12, causing the curtain 50 to unfold.

[0045] A positioning ring 70 can be fixed to the surface of the curtain body 50, and the lifting rope 40 is threaded through the positioning ring 70. The positioning ring 70 can position and guide the position of the lifting rope 40 relative to the curtain body 50. The mounting position of the cord retraction module 12 on the bottom surface of the upper rail 11 is adjustable, so that the position of the lifting rope 40 can be easily adjusted to accommodate curtains of different sizes.

[0046] The through-axis spring structure described in this embodiment is simple in structure and easy to use. Multiple spring boxes 30 can be spliced ​​and installed on the bottom surface of the upper rail 11, effectively selecting different elasticity ranges and flexibly adapting to curtains of different materials and weights. The drive shaft 13 is a single piece, which passes through the take-up and release module 12 and the spring box 30. Compared with some other embodiments where the drive shaft 13 is composed of multiple spliced ​​segments, this embodiment adopts a through-axis structure with a single drive shaft 13, which has high load-bearing capacity and makes it easier to splice multiple spring boxes 30; at the same time, the position of the lifting rope 40 is also easy to adjust, which can adapt to curtains of different sizes.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A through-shaft spring structure, characterized in that, include: The upper rail assembly includes an upper rail, a take-up and untake-up module mounted on the bottom surface of the upper rail, and a drive shaft rotatably connected to the take-up and untake-up module; At least one spring box is detachably connected to the bottom surface of the upper rail; the spring box includes a housing, a first connecting structure connected to the housing, and a second connecting structure; the first connecting structure and the second connecting structure are correspondingly arranged, and the first connecting structure and the second connecting structure can be installed and connected to each other, thereby realizing the fixed connection of the two spring boxes.

2. The through-shaft spring structure according to claim 1, characterized in that: The through-shaft spring structure also includes a support plate installed at the bottom of the upper rail assembly. The support plate is installed on the bottom surface of the upper rail, and two T-slots are arranged side by side on the side of the support plate facing away from the upper rail. The two T-slots are arranged along the length direction of the support plate. The housing includes a box body and a cover plate that matches and connects to the box body; the spring box also includes a first locking foot connected to opposite sides of the top surface of the box body and a second locking foot connected to opposite sides of the top surface of the cover plate; the first locking foot is T-shaped and matches and connects to a T-slot; the second locking foot is T-shaped and matches and connects to a T-slot, so that the spring box can be detachably connected to the support plate and thus detachably connected to the bottom surface of the upper rail.

3. The through-shaft spring structure according to claim 2, characterized in that: The take-up and unwinding module has two parts, which are installed at opposite ends of the bottom surface of the upper rail. The first connecting structure is a positioning seat, and the second connecting structure is a lug. The spring box has two lugs and two positioning seats. The two positioning seats are connected to opposite sides of the box body, and the two lugs are connected to opposite sides of the cover plate. When the two spring boxes are spliced ​​in the same direction, the box body of one spring box abuts against the cover plate of the other spring box. The lugs are screwed into the inside of the positioning seats by screws through them, thereby realizing the installation connection between the positioning seats and the lugs.

4. The through-shaft spring structure according to claim 3, characterized in that: The spring box also includes a first balance wheel rotatably mounted on the top of the box, a second balance wheel rotatably mounted on the bottom of the box, and a spiral spring connecting the first balance wheel and the second balance wheel; the drive shaft passes coaxially through the first balance wheel to drive the first balance wheel to rotate synchronously.

5. The through-shaft spring structure according to claim 4, characterized in that: The drive shaft has a non-circular cross-section; the first balance wheel has a shaft hole along its axis, and the shape of the shaft hole matches the cross-sectional shape of the drive shaft.

6. The through-shaft spring structure according to claim 4, characterized in that: The spiral spring is S-shaped, with one end of the spiral spring fixedly connected to the first balance wheel and the other end of the spiral spring fixedly connected to the second balance wheel, so that the first balance wheel and the second balance wheel rotate in opposite directions.

7. The through-shaft spring structure according to claim 3, characterized in that: The bottom surface of the upper rail is recessed inward along the length of the upper rail, and a receiving groove is provided in the middle of the side of the bearing plate facing the upper rail along the length of the bearing plate. The boss and the receiving groove are correspondingly matched.

8. The through-shaft spring structure according to claim 7, characterized in that: The upper rail has multiple assembly holes on opposite sides of the receiving groove; the bearing plate has multiple through grooves on opposite sides of the boss, and the through grooves correspond one-to-one with the assembly holes.

9. The through-shaft spring structure according to claim 1, characterized in that: The drive shaft is a single piece, which passes through the take-up / untake-off module and the spring box; and / or The mounting position of the take-up and unwind module on the bottom surface of the upper rail is adjustable.

10. A sunshade device, characterized in that, It includes at least the through-shaft spring structure as described in any one of claims 1-9.

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