Multi-pulley block and curtain track matching structure

Abstract

The utility model relates to a matching structure of a multi-pulley block and a curtain track. The technical problems that an existing pulley piece inclines and rubs the interior of a curtain rail are solved. Comprising a tackle body slidably arranged in a track body, a tackle arm is arranged at the lower end of the tackle body, the tackle body comprises a tackle fixing base, two tackle half bodies are arranged at the upper end of the tackle fixing base through an assembly connecting structure, and pulley blocks are arranged on the upper sides and the lower sides of the relatively-away ends of the tackle half bodies correspondingly. The two pulley blocks on each tackle half body are arranged in a one-to-one correspondence mode in the horizontal direction, and the two pulley blocks, located at the same end, on the same tackle half body are arranged in an up-and-down correspondence mode and both correspond to a guide part axially arranged in the track body. The tackle has the advantages that the four pulley blocks are mounted on the tackle main body, so that the tackle main body can run more stably in the track body, and when the tackle arm is stressed to incline, the tackle main body can still run stably and smoothly through mutual matching of the pulley blocks and the track body.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric curtain equipment, and particularly relates to a multi-pulley pulley and curtain track matching structure. Background Art

[0002] Electric curtains are typically powered by a motor, driving a timing belt and pulley within the curtain track. The pulley's movement drives the curtain fabric, controlling the curtain's opening and closing. Existing pulleys are connected to the curtain fabric via pulley arms. The curtain fabric wobble during movement, and this movement can cause the pulley arm to tilt. This friction between the pulley and the curtain track can cause jamming or unusual noises. Over time, this can damage the pulley, impacting normal operation. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems and provide a multi-pulley pulley and curtain track matching structure.

[0004] To achieve the above-mentioned object, the present invention adopts the following technical solutions: a multi-pulley pulley and curtain track matching structure, comprising a pulley body slidably disposed within a track body, the pulley body having a pulley arm extending outward from the track body at its lower end, the pulley body including a pulley mounting seat connected to one end of the pulley arm and vertically extending through a track opening on one side of the track body, the pulley mounting seat having two symmetrically disposed pulley halves extending inward from the track body at its upper end through an assembled connection structure, the pulley halves having pulley assemblies disposed on the upper and lower sides of oppositely spaced ends of the pulley halves, the two pulley assemblies on each pulley half being horizontally aligned, the two pulley assemblies on the same end of the same pulley half being aligned in the upper and lower directions and both corresponding to guide portions axially disposed within the track body, the two pulley halves being spliced together by the pulley mounting seat, the pulley body sliding within the track body via the pulley assembly, and the pulley assembly reducing friction between the pulley body and the track body when the pulley body tilts.

[0005] In the above-mentioned multi-pulley pulley and curtain track matching structure, each pulley assembly includes two pulley bodies vertically symmetrically arranged on both sides of the pulley half, and the pulley bodies are connected by a pulley shaft passing through the pulley half to ensure the operating stability of the pulley half.

[0006] In the above-mentioned structure of a multi-pulley pulley and a curtain track, the two pulley halves are provided with four pulley blocks, and the pulley bodies on each pulley block are of the same size.

[0007] In the above-mentioned multi-pulley pulley and curtain rail matching structure, the four pulley groups on the two pulley halves are divided into two upper pulley groups and two lower pulley groups. The two upper pulley groups are located on the same horizontal plane, and the two lower pulley groups are located on the same horizontal plane and below the upper pulley groups.

[0008] In the above-mentioned multi-pulley pulley and curtain rail structure, the guide portions are two in number and symmetrically arranged. The guide portions have a T-shaped cross-section and are axially integrally formed on both sides of the middle portion of the rail body. The guide portions can prevent the pulley body from deflecting during movement.

[0009] In the above-mentioned multi-pulley trolley and curtain rail matching structure, the corresponding sides of the two guide parts respectively have vertically arranged guide surfaces, and the pulley bodies on the two upper pulley groups and the pulley bodies on the two lower pulley groups respectively correspond to the guide surfaces.

[0010] In the above-mentioned multi-pulley and curtain track cooperation structure, two upper guide ribs are provided inside the side of the track body away from the track opening, and two lower guide ribs are provided inside the side of the track body with the track opening, and the lower guide ribs are symmetrically arranged on both sides of the track opening, and one side of the upper guide rib, one side of the lower guide rib and the guide surface are all located on the same straight line.

[0011] In the above-mentioned multi-pulley trolley and curtain rail cooperation structure, an upper track groove for the upper pulley group to slide is formed between the two upper guide ribs and one end of the two guide parts, and a lower track groove for the lower pulley group to slide and connected to the upper track groove is formed between the two lower guide ribs and the other end of the two guide parts.

[0012] In the above-mentioned multi-pulley pulley and curtain rail matching structure, the assembly connection structure includes vertical grooves respectively provided on corresponding sides of the two pulley halves, the bottom of each pulley half is provided with a bottom groove connected to the vertical groove, the pulley fixing seat is in a mountain shape and has two short vertical portions and a long vertical portion, the long vertical portion is located between the two short vertical portions, the short vertical portions are respectively inserted into the bottom grooves of the two pulley halves, and the long vertical portion is inserted into the vertical grooves of the two pulley halves, and the bottom of the pulley half, the pulley fixing seat, and one end of the pulley arm are connected by fixing bolts. The short vertical portion of the pulley fixing seat is connected to the bottom groove, and the long vertical portion of the pulley fixing seat is connected to the vertical groove, thereby allowing the two pulley halves to be assembled with each other.

[0013] In the above-mentioned multi-pulley pulley and curtain track matching structure, the ends of the pulley halves that are away from each other have a buffer portion, and the lower sides of the ends of the pulley halves that are away from each other are respectively provided with guide wheels horizontally arranged in the track opening.

[0014] Compared with the existing technology, the advantages of this utility model are:

[0015] 1. The device adopts four pulley blocks installed on the pulley body, which can make the pulley body more stable when running in the track body. When the pulley arm is forced to tilt, the pulley body can still run smoothly through the cooperation between the pulley block and the track body.

[0016] 2. The device installs a buffer part on the pulley body, which can avoid damage to the pulley body due to collision when moving, extend the service life of the pulley body, and at the same time use the guide wheel to make the pulley body run stably in the track body, reducing friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is the main view of the present utility model.

[0019] Figure 3 It is a structural diagram of the pulley body in the utility model.

[0020] Figure 4 It is a structural sectional view of the pulley body in the utility model.

[0021] Figure 5 It is a structural schematic diagram of the pulley fixing seat in the utility model.

[0022] In the figure: track body 1, track opening 11, guide part 12, guide surface 13, upper guide rib 14, lower guide rib 15, upper track groove 16, lower track groove 17, pulley body 2, pulley arm 21, pulley fixing seat 22, pulley half body 23, buffer part 24, guide wheel 25, assembled connection structure 3, vertical groove 31, bottom groove 32, short vertical part 33, long vertical part 34, pulley block 4, pulley body 41, pulley shaft 42, upper pulley block 43, lower pulley block 44. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] like Figure 1-5As shown, a multi-pulley pulley and curtain track cooperation structure includes a pulley body 2 slidably arranged in a track body 1, and a pulley arm 21 extending to the outside of the track body 1 at the lower end of the pulley body 2. The pulley body 2 includes a pulley fixing seat 22 connected to one end of the pulley arm 21 and vertically passed through the track opening 11 on one side of the track body 1. The upper end of the pulley fixing seat 22 is provided with two symmetrically arranged pulley halves 23 extending to the inside of the track body 1 through an assembled connection structure 3. Pulley groups 4 are respectively provided on the upper and lower sides of the relatively distant end of the pulley half 23. The two pulley groups 4 on each pulley half 23 are respectively arranged in a one-to-one correspondence along the horizontal direction. The two pulley groups 4 at the same end of the same pulley half 23 are arranged in a corresponding manner up and down and both correspond to the guide portion 12 axially arranged in the track body 1. The two pulley halves 23 are connected to each other through the pulley fixing seat 22, and the pulley body 2 slides in the track body 1 through the pulley block 4. At the same time, the pulley body 2 reduces the friction between the pulley body 2 and the track body 1 when the pulley body 2 tilts through the pulley block 4.

[0025] like Figure 3 As shown, each pulley assembly 4 includes two pulley bodies 41 vertically symmetrically arranged on both sides of the pulley half 23, and the pulley bodies 41 are connected by a pulley shaft 42 passing through the pulley half 23 to ensure the operating stability of the pulley half 23.

[0026] The two pulley halves 23 are provided with four pulley blocks 4 , and the pulley bodies 41 on each pulley block 4 are of the same size.

[0027] Specifically, the four pulley blocks 4 on the two pulley half bodies 23 are divided into two upper pulley blocks 43 and two lower pulley blocks 44 . The two upper pulley blocks 43 are located on the same horizontal plane, and the two lower pulley blocks 44 are located on the same horizontal plane and below the upper pulley blocks 43 .

[0028] Combine Figure 1 and Figure 2 As shown, there are two guide parts 12 and they are symmetrically arranged. The cross section of the guide parts 12 is T-shaped and is axially integrally formed on both sides of the middle part of the track body 1. The guide parts 12 can prevent the pulley body 2 from deflecting during movement.

[0029] The two guide portions 12 have vertically arranged guide surfaces 13 on corresponding sides, and the pulley bodies 41 on the two upper pulley blocks 43 and the pulley bodies 41 on the two lower pulley blocks 44 correspond to the guide surfaces 13 respectively.

[0030] Specifically, two upper guide ribs 14 are provided on the side of the track body 1 facing away from the track opening 11. Two lower guide ribs 15 are provided on the side of the track body 1 facing the track opening 11. The lower guide ribs 15 are symmetrically arranged on either side of the track opening 11. The sides of the upper guide ribs 14 and the lower guide ribs 15, as well as the guide surface 13, are all located on the same straight line. The upper guide ribs 14 and the lower guide ribs 15 serve as position limiting guides.

[0031] Furthermore, an upper track groove 16 for the upper pulley group 43 to slide is formed between the two upper guide ribs 14 and one end of the two guide parts 12, and a lower track groove 17 for the lower pulley group 44 to slide and connected to the upper track groove 16 is formed between the two lower guide ribs 15 and the other end of the two guide parts 12.

[0032] Combine Figure 4 and Figure 5 As shown, the assembly connection structure 3 includes vertical slots 31 provided on corresponding sides of the two pulley halves 23. A bottom slot 32 is provided at the bottom of each pulley half 23, communicating with the vertical slot 31. The pulley fixing seat 22 is in a mountain shape and has two short vertical portions 33 and a long vertical portion 34. The long vertical portion 34 is located between the two short vertical portions 33. The short vertical portions 33 are inserted into the bottom slots 32 of the two pulley halves 23, and the long vertical portion 34 is inserted into the vertical slots 31 of the two pulley halves 23. The bottom of the pulley halves 23, the pulley fixing seat 22, and one end of the pulley arm 21 are connected by fixing bolts. The short vertical portions 33 of the pulley fixing seat 22 are connected to the bottom slot 32, and the long vertical portion 34 of the pulley fixing seat 22 is connected to the vertical slot 31, thereby allowing the two pulley halves 23 to be assembled together.

[0033] like Figure 3 As shown, the ends of the pulley halves 23 that are away from each other have a buffer portion 24 , and the lower sides of the ends of the pulley halves 23 that are away from each other are respectively provided with guide wheels 25 that are horizontally arranged in the track opening 11 .

[0034] The principle of this embodiment is:

[0035] The short vertical portion 33 of the pulley fixing seat 22 is connected to the bottom groove 32 of the pulley half 23, and the long vertical portion 34 of the pulley fixing seat 22 is connected to the vertical groove 31 of the two pulley halves 23, thereby assembling the two pulley halves 23 into a pulley body 2. The pulley body 2 moves in the track body 1 through the pulley body 41, the upper pulley group 43 of the pulley body 2 moves in the upper track groove 16, and the lower pulley group 44 of the pulley body 2 moves in the lower track groove 17. In this way, when the pulley body 2 tilts, the pulley body 41 will move against the inner side of the track body 1 to avoid friction between the pulley body 2 and the track body 1, so that the pulley body 2 runs more stably.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0037] Although the present invention frequently uses terms such as track body 1, track opening 11, guide portion 12, guide surface 13, upper guide rib 14, lower guide rib 15, upper track groove 16, lower track groove 17, pulley body 2, pulley arm 21, pulley fixing seat 22, pulley half body 23, buffer portion 24, guide wheel 25, assembly connection structure 3, vertical groove 31, bottom groove 32, short vertical portion 33, long vertical portion 34, pulley block 4, pulley body 41, pulley shaft 42, upper pulley block 43, and lower pulley block 44, the use of other terms is not excluded. The use of these terms is merely for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A multi-pulley pulley and curtain track matching structure, comprising a pulley body (2) slidably arranged in a track body (1), wherein the lower end of the pulley body (2) has a pulley arm (21) extending to the outside of the track body (1), characterized in that: The pulley body (2) includes a pulley fixing seat (22) connected to one end of the pulley arm (21) and vertically inserted into the track opening (11) on one side of the track body (1). The upper end of the pulley fixing seat (22) is provided with two symmetrically arranged pulley halves (23) extending to the inner side of the track body (1) through an assembled connection structure (3). The pulley halves (23) are provided with pulley groups (4) on the upper and lower sides of the relatively distant ends. The two pulley groups (4) on each pulley half (23) are respectively arranged in a one-to-one correspondence along the horizontal direction. The two pulley groups (4) at the same end of the same pulley half (23) are arranged in a corresponding manner up and down and both correspond to the guide portion (12) axially arranged in the track body (1).

2. The multi-pulley pulley and curtain track matching structure according to claim 1, characterized in that: Each pulley assembly (4) comprises two pulley bodies (41) vertically symmetrically arranged on both sides of the pulley half body (23), and the pulley bodies (41) are connected via a pulley shaft (42) passing through the pulley half body (23).

3. The multi-pulley pulley and curtain track matching structure according to claim 2, characterized in that: The two pulley half bodies (23) are provided with four pulley blocks (4), and the pulley bodies (41) on each pulley block (4) are of the same size.

4. A multi-pulley pulley and curtain track matching structure according to claim 2 or 3, characterized in that: The four pulley blocks (4) on the two pulley half bodies (23) are divided into two upper pulley blocks (43) and two lower pulley blocks (44), wherein the two upper pulley blocks (43) are located on the same horizontal plane, and the two lower pulley blocks (44) are located on the same horizontal plane and below the upper pulley blocks (43).

5. The multi-pulley pulley and curtain track matching structure according to claim 4, characterized in that: The number of the guide parts (12) is two and they are symmetrically arranged. The cross section of the guide parts (12) is T-shaped and they are axially integrally formed on both sides of the middle part of the track body (1).

6. The multi-pulley pulley and curtain track matching structure according to claim 5, characterized in that: One side corresponding to the two guide portions (12) is provided with a vertically arranged guide surface (13), and the pulley bodies (41) on the two upper pulley blocks (43) and the pulley bodies (41) on the two lower pulley blocks (44) respectively correspond to the guide surface (13).

7. The multi-pulley pulley and curtain track matching structure according to claim 4, characterized in that: Two upper guide ribs (14) are provided inside the side of the track body (1) away from the track opening (11), two lower guide ribs (15) are provided inside the side of the track body (1) with the track opening (11), and the lower guide ribs (15) are symmetrically arranged on both sides of the track opening (11), and one side of the upper guide rib (14) and one side of the lower guide rib (15) as well as the guide surface (13) are all located on the same straight line.

8. The multi-pulley pulley and curtain track matching structure according to claim 7, characterized in that: An upper track groove (16) for sliding the upper pulley block (43) is formed between the two upper guide ribs (14) and one end of the two guide parts (12), and a lower track groove (17) for sliding the lower pulley block (44) and communicating with the upper track groove (16) is formed between the two lower guide ribs (15) and the other end of the two guide parts (12).

9. The multi-pulley pulley and curtain track matching structure according to claim 1, characterized in that: The assembly connection structure (3) includes vertical grooves (31) respectively arranged on the corresponding sides of the two pulley half bodies (23); the bottom of the pulley half body (23) is provided with a bottom groove (32) connected to the vertical groove (31); the pulley fixing seat (22) is in a mountain shape and has two short vertical parts (33) and a long vertical part (34); the long vertical part (34) is located between the two short vertical parts (33); the short vertical parts (33) are respectively inserted into the bottom grooves (32) of the two pulley half bodies (23) and the long vertical part (34) is inserted into the vertical grooves (31) of the two pulley half bodies (23); the bottom of the pulley half body (23), the pulley fixing seat (22) and one end of the pulley arm (21) are connected by fixing bolts.

10. The multi-pulley pulley and curtain track matching structure according to claim 1, characterized in that: The ends of the pulley halves (23) that are away from each other are provided with a buffer portion (24), and the lower sides of the ends of the pulley halves (23) that are away from each other are respectively provided with guide wheels (25) that are horizontally arranged in the track opening (11).

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