Curtain pulley structure with guide wheels

Abstract

The utility model relates to a curtain pulley structure with a guide wheel. The technical problems that due to the fact that the connecting position of an existing guide rail is uneven, a tackle moves to be stuck and generate noise are solved. Comprising a tackle body slidably arranged in a telescopic rail, the telescopic rail is provided with a large rail body and a small rail body, the lower end of the tackle body is connected with a tackle arm located on the lower side of the telescopic rail, at least one guide wheel body is arranged at the upper end of the tackle body, and at least one large rail guide part is arranged on the inner side of the large rail body; at least one small rail guide part is arranged on the inner side of the small rail body, the guide wheel body makes contact with the large rail guide part and / or the small rail guide part, and the large rail guide part and the small rail guide part are equal in height. The sliding support device has the advantages that the large rail guide part and the small rail guide part are arranged in the large rail body and the small rail body respectively, the guide wheel body is supported in a sliding mode, meanwhile, the large rail guide part and the small rail guide part are equal in height, smooth operation of the tackle body in the telescopic rail is facilitated, and the phenomenon of jamming is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric curtain equipment, and in particular relates to a curtain pulley structure with a guide wheel. Background Art

[0002] At present, electric curtains generally include components such as motors, guide rails, pulleys, and synchronous belts. The pulleys are arranged in the guide rails and connected to the synchronous belts. Driven by the motor, the curtains move to open and close. In order to adapt to different environments, existing electric curtains use telescopic guide rails to improve the flexibility of electric curtains. However, since the guide rails are telescopic, the places where the guide rails are connected will be uneven. When the pulley slides from one guide rail to another, it will jam and generate noise, which seriously affects the normal use of the curtains. Summary of the invention

[0003] The purpose of the utility model is to provide a curtain pulley structure with a guide wheel in view of the above problems.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a curtain pulley structure with a guide wheel, comprising a pulley body slidably arranged in a telescopic track, the telescopic track having a large track body and a small track body, the lower end of the pulley body is connected to a pulley arm located at the lower side of the telescopic track, the upper end of the pulley body is provided with at least one guide wheel body, the inner side of the large track body is provided with at least one large track guide part, the inner side of the small track body is provided with at least one small track guide part, the guide wheel body is in contact with the large track guide part and / or the small track guide part, and the large track guide part and the small track guide part are of equal height. The pulley body can run smoothly in the telescopic track, reduce noise and vibration, and the large track guide part and the small track guide part cooperate with each other, so that the pulley body can slide arbitrarily in the telescopic track to avoid the phenomenon of jamming.

[0005] In the above-mentioned curtain pulley structure with guide wheels, the pulley body is divided into a main pulley body and an auxiliary pulley body, the main pulley body is slidably arranged in the large track body, the auxiliary pulley body is slidably arranged in the small track body, the main pulley body has a main pulley arm at the lower end, the auxiliary pulley body has an auxiliary pulley arm opposite to the main pulley arm and staggered at the lower end, the main pulley body and the auxiliary pulley body are respectively provided with at least one guide wheel body at the upper end, and the guide wheel bodies on the main pulley body and the auxiliary pulley body are equal in height. The equal height of the guide wheel bodies can ensure the neatness of the curtain during the movement process.

[0006] In the above-mentioned curtain pulley structure with guide wheels, the number of guide wheels on the main pulley body and the auxiliary pulley body is four respectively, and the heights of the guide wheels are equal. Two guide wheels form a group and are symmetrically arranged on both sides of the upper end of the main pulley body or the auxiliary pulley body to ensure the stability of the pulley body operation.

[0007] In the above-mentioned curtain pulley structure with guide wheels, the small track body is axially inserted into the inner side of one end of the large track body, the lower side of the large track body is provided with a large track groove extending axially, the lower side of the small track body is provided with a small track groove connected to the large track groove, the number of the large track guide parts is two and they are respectively arranged on both sides of the large track groove, the number of the small track guide parts is two and they are respectively arranged on both sides of the small track groove, and one end of the large track guide part and one end of the small track guide part are mutually staggered. It is convenient for the pulley body to transition from one track to another track when moving.

[0008] In the above-mentioned curtain pulley structure with guide wheels, the two ends of the guide wheel body are respectively provided with limiting parts, and there is a sliding groove between the limiting parts, and the sliding groove has an annular sliding surface in contact with the large track guide part and / or the small track guide part. The limiting parts are located at both ends of the large track guide part and the lower track guide part, and play a limiting role, so that the stability of the movement of the guide wheel body can be ensured, and the phenomenon of the guide wheel body being separated from the large track guide part or the small track guide part when moving can be reduced.

[0009] In the above-mentioned curtain pulley structure with guide wheels, the small track guide part is provided with a small track lower limit part on the side away from the small track groove, the small track body is provided with a small track upper limit part corresponding to the small track lower limit part on the inner side away from the small track groove, and the end face of the limit part of the guide wheel body on the auxiliary pulley body away from the auxiliary pulley body is in contact with the small track upper limit part and the small track lower limit part. The small track upper limit part and the small track lower limit part limit the auxiliary pulley body to reduce the shaking phenomenon when the auxiliary pulley body slides.

[0010] In the above-mentioned curtain pulley structure with guide wheels, the main pulley body includes a main sliding seat, which is formed by axially splicing two sliding parts, and the upper sides of the ends of the two sliding parts away from each other are respectively provided with main guide wheel connecting parts, and the two sides of the main guide wheel connecting parts are respectively provided with guide wheel bodies, and the same side corresponding to the two sliding parts is provided with a main synchronous belt connecting part, and the main synchronous belt connecting part is provided with an axially penetrating main synchronous belt connecting channel on the inner side of the circumference, and the upper end of the main synchronous belt connecting part is provided with a main synchronous belt mounting cover, and the lower end of the main sliding seat is provided with a fixing plate, and the sliding part and the fixing plate are connected to the main pulley arm fixing seat arranged at one end of the main pulley arm through the main pulley mounting structure. The main pulley body is connected to the synchronous belt through the main synchronous belt connecting part, and the guide wheel body is connected to the main pulley body through the main guide wheel body connecting part.

[0011] In the above-mentioned curtain pulley structure with a guide wheel, the main pulley mounting structure includes a connecting block arranged at the lower end of the sliding part, a connecting groove is provided between the connecting blocks of the two sliding parts, fixing grooves corresponding to the connecting blocks are respectively provided on both sides of the upper end of the fixing plate, and a fixing block located in the connecting groove is provided between the two fixing grooves, a main pulley arm fixing groove is provided in the main pulley arm fixing seat, and the lower end of the sliding part and the lower end of the fixing plate are axially inserted into the main pulley arm fixing groove and are connected by the main pulley fixing screws.

[0012] In the above-mentioned curtain pulley structure with guide wheels, the upper ends of the fixed plate are provided with extension parts on both sides, and a vertical part is provided at the lower end of one of the extension parts, and the vertical part and the extension part are in a vertical structure, and the guide wheel bodies in contact with the outer side of the large track body are provided on both sides of the vertical part. The guide wheel body of the vertical part is a limit guide wheel, which plays a limit role, thereby improving the stability of the main pulley body when moving and reducing the shaking phenomenon.

[0013] In the above-mentioned curtain pulley structure with guide wheels, the auxiliary pulley body includes an auxiliary slide seat, auxiliary guide wheel connection parts are respectively provided on both sides of the upper end of the auxiliary slide seat, guide wheel bodies are respectively provided on both sides of the auxiliary guide wheel connection part, an auxiliary synchronous belt connection part is provided on one side of the auxiliary slide seat, an auxiliary synchronous belt connection channel axially penetrating the circumferential inner side of the auxiliary synchronous belt connection part is provided, and an auxiliary synchronous belt installation cover is provided on the upper end of the auxiliary synchronous belt connection part, and the lower end of the auxiliary slide seat is connected to the auxiliary pulley arm fixing seat provided at one end of the auxiliary pulley arm. The auxiliary pulley body is connected to the synchronous belt through the auxiliary synchronous belt connection part, and the guide wheel body is connected to the auxiliary pulley body through the auxiliary guide wheel body connection part.

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

[0015] 1. The device is provided with a large track guide part and a small track guide part in the large track body and the small track body respectively to provide sliding support for the guide wheel body. Meanwhile, the heights of the large track guide part and the small track guide part are equal, which is beneficial to the smooth operation of the pulley body in the telescopic track and reduces the jamming phenomenon.

[0016] 2. The device sets a small track upper limit part and a small track lower limit part in the small track body. When the auxiliary pulley body moves in the small track body, the shaking of the auxiliary pulley body can be reduced. At the same time, the main pulley body is connected to the guide wheel body by a fixed plate, and the guide wheel body on the fixed plate is in contact with the outer side of the large track body, so that the shaking of the main pulley body can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a side view of the utility model.

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

[0020] Figure 4 It is a structural explosion diagram of the auxiliary pulley body in the utility model.

[0021] Figure 5 It is a structural schematic diagram of the main pulley body and the large track body in the utility model.

[0022] Figure 6 It is a structural schematic diagram of the auxiliary pulley body and the small track body in the utility model.

[0023] Figure 7 It is a structural schematic diagram of the sliding part in the utility model.

[0024] Figure 8 It is a structural schematic diagram of the fixing plate in the utility model.

[0025] In the figure: telescopic track 1, large track body 11, small track body 12, large track guide part 13, small track guide part 14, large track groove 15, small track groove 16, small track lower limit part 17, small track upper limit part 18, pulley body 2, pulley arm 3, main pulley arm 31, auxiliary pulley arm 32, main pulley arm fixing seat 33, main pulley arm fixing groove 34, main pulley fixing screw 35, auxiliary pulley arm fixing seat 36, guide wheel body 4, limit part 41, sliding groove 42, annular sliding surface 43, Main pulley body 5, main sliding seat 51, sliding part 52, main guide wheel body connecting part 53, main synchronous belt connecting part 54, main synchronous belt connecting channel 55, main synchronous belt mounting cover 56, fixing plate 57, extension part 58, vertical part 59, auxiliary pulley body 6, auxiliary sliding seat 61, auxiliary guide wheel body connecting part 62, auxiliary synchronous belt connecting part 63, auxiliary synchronous belt connecting channel 64, auxiliary synchronous belt mounting cover 65, main pulley mounting structure 7, connecting block 71, connecting groove 72, fixing groove 73, fixing block 74. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] like Figure 1-8 As shown, a curtain pulley structure with a guide wheel includes a pulley body 2 slidably arranged in a telescopic track 1, the telescopic track 1 has a large track body 11 and a small track body 12, the lower end of the pulley body 2 is connected to a pulley arm 3 located at the lower side of the telescopic track 1, and the upper end of the pulley body 2 is provided with at least one guide wheel body 4, the inner side of the large track body 11 is provided with at least one large track guide part 13, the inner side of the small track body 12 is provided with at least one small track guide part 14, the guide wheel body 4 is in contact with the large track guide part 13 and / or the small track guide part 14, and the large track guide part 13 and the small track guide part 14 are equal in height. The pulley body 2 can run smoothly in the telescopic track 1, reduce noise and vibration, and the mutual cooperation of the large track guide part 13 and the small track guide part 14 allows the pulley body 2 to slide arbitrarily in the telescopic track 1 to avoid the phenomenon of jamming.

[0028] Combination Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the pulley body 2 is divided into a main pulley body 5 and an auxiliary pulley body 6, the main pulley body 5 is slidably arranged in the large track body 11, and the auxiliary pulley body 6 is slidably arranged in the small track body 12. The main pulley body 5 has a main pulley arm 31 at the lower end, and the auxiliary pulley body 6 has an auxiliary pulley arm 32 opposite to and staggered with the main pulley arm 31 at the lower end. At least one guide wheel body 4 is respectively arranged at the upper end of the main pulley body 5 and the auxiliary pulley body 6, and the guide wheel bodies 4 on the main pulley body 5 and the auxiliary pulley body 6 are equal in height. The equal height of the guide wheel bodies 4 can ensure the neatness of the curtain during the movement process.

[0029] There are four guide wheels 4 on the main pulley body 5 and the auxiliary pulley body 6, and the heights of the guide wheels 4 are equal. Two guide wheels 4 are a group and are symmetrically arranged on both sides of the upper end of the main pulley body 5 or the auxiliary pulley body 6 to ensure the stability of the pulley body 2.

[0030] Specifically, the small track body 12 is axially inserted into the circumferential inner side of one end of the large track body 11, the large track body 11 is provided with an axially extending large track groove 15 at the lower side, the small track body 12 is provided with a small track groove 16 connected to the large track groove 15 at the lower side, the large track guide parts 13 are two in number and are respectively provided on both sides of the large track groove 15, the small track guide parts 14 are two in number and are respectively provided on both sides of the small track groove 16, and one end of the large track guide part 13 and one end of the small track guide part 14 are mutually staggered. It is convenient for the pulley body 2 to transition from one track to another when moving.

[0031] Furthermore, the two ends of the guide wheel body 4 are respectively provided with a limit portion 41, a sliding groove 42 is provided between the limit portions 41, and an annular sliding surface 43 in contact with the large track guide portion 13 and / or the small track guide portion 14 is provided in the sliding groove 42. The limit portions 41 are located at both ends of the large track guide portion 13 and the lower track guide portion 14, and play a role of limiting, so that the stability of the movement of the guide wheel body 4 can be ensured, and the phenomenon of the guide wheel body 4 being separated from the large track guide portion 13 or the small track guide portion 14 when moving is reduced.

[0032] Furthermore, the small track guide part 14 is provided with a small track lower limit part 17 on the side away from the small track groove 16, and the small track body 12 is provided with a small track upper limit part 18 corresponding to the small track lower limit part 17 on the inner side away from the small track groove 16, and the end surface of the limit part 41 of the guide wheel body 4 on the auxiliary pulley body 6 away from the auxiliary pulley body 6 is in contact with the small track upper limit part 18 and the small track lower limit part 17. The small track upper limit part 18 and the small track lower limit part 17 limit the auxiliary pulley body 6 to reduce the shaking phenomenon of the auxiliary pulley body 6 when sliding.

[0033] Combination Figure 3 and Figure 7As shown, the main pulley body 5 includes a main sliding seat 51, which is formed by axially splicing two sliding parts 52. The upper sides of the two sliding parts 52 that are away from each other are respectively provided with main guide wheel body connecting parts 53, and the two sides of the main guide wheel body connecting parts 53 are respectively provided with guide wheel bodies 4. The same side of the two sliding parts 52 corresponding to each other is provided with a main synchronous belt connecting part 54, and the main synchronous belt connecting part 54 is provided with an axially penetrating main synchronous belt connecting channel 55 on the inner side of the circumference, and the upper end of the main synchronous belt connecting part 54 is provided with a main synchronous belt mounting cover 56, and the lower end of the main sliding seat 51 is provided with a fixing plate 57, and the sliding part 52 and the fixing plate 57 are connected to the main pulley arm fixing seat 33 set at one end of the main pulley arm 31 through the main pulley mounting structure 7. The main pulley body 5 is connected to the synchronous belt through the main synchronous belt connecting part 54, and the guide wheel body 4 is connected to the main pulley body 5 through the main guide wheel body connecting part 53.

[0034] Among them, the main pulley mounting structure 7 includes a connecting block 71 arranged at the lower end of the sliding part 52, a connecting groove 72 is provided between the connecting blocks 71 of the two sliding parts 52, and fixing grooves 73 corresponding to the connecting block 71 are respectively provided on both sides of the upper end of the fixing plate 57, and a fixing block 74 located in the connecting groove 72 is provided between the two fixing grooves 73. The main pulley arm fixing seat 33 has a main pulley arm fixing groove 34, and the lower end of the sliding part 52 and the lower end of the fixing plate 57 are axially inserted into the main pulley arm fixing groove 34 and are connected by the main pulley fixing screw 35.

[0035] like Figure 8 As shown, the upper ends of the fixing plate 57 are provided with extensions 58 on both sides, and a vertical portion 59 is provided at the lower end of one of the extensions 58. The vertical portion 59 and the extension 58 are in a vertical structure, and guide wheel bodies 4 are provided on both sides of the vertical portion 59 to contact the outer side of the large track body 11. The guide wheel body 4 of the vertical portion 59 is a limit guide wheel, which plays a limit role, thereby improving the stability of the main pulley body 5 when moving and reducing the shaking phenomenon.

[0036] like Figure 4 As shown, the auxiliary pulley body 6 includes an auxiliary sliding seat 61, and auxiliary guide wheel body connecting parts 62 are respectively provided on both sides of the upper end of the auxiliary sliding seat 61, and guide wheel bodies 4 are respectively provided on both sides of the auxiliary guide wheel body connecting part 62. A secondary synchronous belt connecting part 63 is provided on one side of the auxiliary sliding seat 61, and an auxiliary synchronous belt connecting channel 64 axially penetrating the auxiliary synchronous belt connecting part 63 is provided on the inner side of the circumference, and an auxiliary synchronous belt mounting cover 65 is provided on the upper end of the auxiliary synchronous belt connecting part 63. The lower end of the auxiliary sliding seat 61 is connected to the auxiliary pulley arm fixing seat 36 provided at one end of the auxiliary pulley arm 32. The auxiliary pulley body 6 is connected to the synchronous belt through the auxiliary synchronous belt connecting part 63, and the guide wheel body 4 is connected to the auxiliary pulley body 6 through the auxiliary guide wheel body connecting part 62.

[0037] The principle of this embodiment is:

[0038] The main pulley body 5 slides in the large track body 11 through the guide wheel body 4, the guide wheel body 4 of the main pulley body 5 contacts the large track guide part 13 of the large track body 11, and the guide wheel body 4 is clamped with the large track guide part 13 through the limit part 41. The lower end of the main pulley body 5 extends to the outside of the large track body 11 through the large track groove 15 and is connected to the main pulley arm 31. The guide wheel body 4 connected to one end of the fixing plate 57 contacts the outside of the large track body 11, which plays a role in sliding limit. The wheel body 4 slides in the small track body 12, the guide wheel body 4 of the auxiliary pulley body 6 contacts the small track guide part 14 of the small track body 12, the guide wheel body 4 is clamped with the small track guide part 14 through the limiting part 41, the lower end of the auxiliary pulley body 6 extends to the outside of the small track body 12 through the small track groove 16 and is connected with the auxiliary pulley arm 32, the small track upper limit part 18 and the small track lower limit part 17 inside the small track body 12 limit the upper end of the auxiliary pulley body 6 to reduce the shaking phenomenon when the auxiliary pulley body 6 moves.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0040] Although this article uses more telescopic rails 1, large rail bodies 11, small rail bodies 12, large rail guides 13, small rail guides 14, large rail grooves 15, small rail grooves 16, small rail lower limit portions 17, small rail upper limit portions 18, pulley bodies 2, pulley arms 3, main pulley arms 31, auxiliary pulley arms 32, main pulley arm fixing seats 33, main pulley arm fixing grooves 34, main pulley fixing screws 35, auxiliary pulley arm fixing seats 36, guide wheel bodies 4, limit portions 41, sliding grooves 42, annular sliding surfaces 43, main pulley bodies 5, The main sliding seat 51, the sliding part 52, the main guide wheel body connection part 53, the main synchronous belt connection part 54, the main synchronous belt connection channel 55, the main synchronous belt installation cover 56, the fixing plate 57, the extension part 58, the vertical part 59, the auxiliary pulley body 6, the auxiliary sliding seat 61, the auxiliary guide wheel body connection part 62, the auxiliary synchronous belt connection part 63, the auxiliary synchronous belt connection channel 64, the auxiliary synchronous belt installation cover 65, the main pulley installation structure 7, the connection block 71, the connection groove 72, the fixing groove 73, the fixing block 74 and other terms are used, but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A curtain pulley structure with a guide wheel, comprising a pulley body (2) slidably arranged in a telescopic track (1), wherein the telescopic track (1) has a large track body (11) and a small track body (12), and the lower end of the pulley body (2) is connected to a pulley arm (3) located at the lower side of the telescopic track (1), characterized in that: At least one guide wheel body (4) is provided at the upper end of the pulley body (2), at least one large track guide portion (13) is provided on the inner side of the large track body (11), and at least one small track guide portion (14) is provided on the inner side of the small track body (12), the guide wheel body (4) is in contact with the large track guide portion (13) and / or the small track guide portion (14), and the large track guide portion (13) and the small track guide portion (14) are of equal height.

2. A curtain pulley structure with a guide wheel according to claim 1, characterized in that: The pulley body (2) is divided into a main pulley body (5) and an auxiliary pulley body (6). The main pulley body (5) is slidably arranged in a large track body (11), and the auxiliary pulley body (6) is slidably arranged in a small track body (12). The lower end of the main pulley body (5) has a main pulley arm (31), and the lower end of the auxiliary pulley body (6) has an auxiliary pulley arm (32) opposite to and staggered with the main pulley arm (31). The upper ends of the main pulley body (5) and the auxiliary pulley body (6) are respectively provided with at least one guide wheel body (4), and the guide wheel bodies (4) on the main pulley body (5) and the auxiliary pulley body (6) are of equal height.

3. A curtain pulley structure with a guide wheel according to claim 2, characterized in that: The number of guide wheel bodies (4) on the main pulley body (5) and the auxiliary pulley body (6) is four respectively, and the heights of the guide wheel bodies (4) are equal. The two guide wheel bodies (4) are a group and are symmetrically arranged on both sides of the upper end of the main pulley body (5) or the auxiliary pulley body (6).

4. A curtain pulley structure with a guide wheel according to claim 2 or 3, characterized in that: The small track body (12) is axially inserted into the circumferential inner side of one end of the large track body (11); the large track body (11) is provided with an axially extending large track groove (15) at the lower side; the small track body (12) is provided with a small track groove (16) connected to the large track groove (15) at the lower side; the large track guide parts (13) are two in number and are respectively arranged on both sides of the large track groove (15); the small track guide parts (14) are two in number and are respectively arranged on both sides of the small track groove (16); one end of the large track guide part (13) and one end of the small track guide part (14) are mutually staggered.

5. A curtain pulley structure with a guide wheel according to claim 4, characterized in that: The guide wheel body (4) is provided with limiting parts (41) at both ends respectively, and a sliding groove (42) is provided between the limiting parts (41), and the sliding groove (42) has an annular sliding surface (43) in contact with the large track guide part (13) and / or the small track guide part (14).

6. A curtain pulley structure with guide wheels according to claim 5, characterized in that: The small track guide portion (14) is provided with a small track lower limit portion (17) on the side away from the small track groove (16), and the small track body (12) is provided with a small track upper limit portion (18) corresponding to the small track lower limit portion (17) on the inner side away from the small track groove (16). The end surface of the limit portion (41) on the side of the guide wheel body (4) on the auxiliary pulley body (6) away from the auxiliary pulley body (6) is in contact with the small track upper limit portion (18) and the small track lower limit portion (17).

7. The curtain pulley structure with guide wheels according to claim 2, characterized in that: The main pulley body (5) comprises a main slide seat (51), and the main slide seat (51) is formed by axially splicing two slide parts (52), and the upper sides of the ends of the two slide parts (52) away from each other are respectively provided with main guide wheel body connection parts (53), and the two sides of the main guide wheel body connection parts (53) are respectively provided with guide wheel bodies (4), and the same side corresponding to the two slide parts (52) is provided with a main synchronous belt connection part (54), and the main synchronous belt connection part (54) is provided with an axially penetrating main synchronous belt connection channel (55) on the circumferential inner side, and the upper end of the main synchronous belt connection part (54) is provided with a main synchronous belt installation cover (56), and the lower end of the main slide seat (51) is provided with a fixing plate (57), and the slide part (52) and the fixing plate (57) are connected to the main pulley arm fixing seat (33) arranged at one end of the main pulley arm (31) through the main pulley installation structure (7).

8. The curtain pulley structure with guide wheels according to claim 7, characterized in that: The main pulley mounting structure (7) comprises a connecting block (71) arranged at the lower end of the sliding part (52), a connecting groove (72) is provided between the connecting blocks (71) of the two sliding parts (52), fixing grooves (73) corresponding to the connecting block (71) are provided on both sides of the upper end of the fixing plate (57), and a fixing block (74) located in the connecting groove (72) is provided between the two fixing grooves (73), a main pulley arm fixing groove (34) is provided in the main pulley arm fixing seat (33), and the lower end of the sliding part (52) and the lower end of the fixing plate (57) are axially inserted into the main pulley arm fixing groove (34) and connected by the main pulley fixing screw (35).

9. A curtain pulley structure with guide wheels according to claim 8, characterized in that: Extension portions (58) are respectively provided on both sides of the upper end of the fixing plate (57), a vertical portion (59) is provided on the lower end of one of the extension portions (58), the vertical portion (59) and the extension portion (58) are in a vertical structure, and guide wheel bodies (4) in contact with the outer side of the large track body (11) are respectively provided on both sides of the vertical portion (59).

10. The curtain pulley structure with guide wheels according to claim 2, characterized in that: The auxiliary pulley body (6) includes an auxiliary slide seat (61), and auxiliary guide wheel body connecting parts (62) are respectively provided on both sides of the upper end of the auxiliary slide seat (61), and guide wheel bodies (4) are respectively provided on both sides of the auxiliary guide wheel body connecting part (62). A secondary synchronous belt connecting part (63) is provided on one side of the auxiliary slide seat (61), and an axially penetrating auxiliary synchronous belt connecting channel (64) is provided on the circumferential inner side of the auxiliary synchronous belt connecting part (63), and an auxiliary synchronous belt mounting cover (65) is provided on the upper end of the auxiliary synchronous belt connecting part (63). The lower end of the auxiliary slide seat (61) is connected to an auxiliary pulley arm fixing seat (36) arranged at one end of the auxiliary pulley arm (32).

Images