Side pressure pulley mechanism

Abstract

The utility model relates to pulley technical field discloses a side pressure pulley mechanism, including the connecting base plate, is equipped with the horizontal guide hole on the connecting base plate, one side of connecting base plate is provided with the base, is provided with the support block in the base, the side of support block close connecting base plate is provided with the guide support rod, the guide support rod sliding joint is in the horizontal guide hole, is provided with the support wheel with the guide support rod in the same side on the base, the support wheel and connecting base plate contact, the base is installed movable lift's support, is provided with the pulley assembly that can swing in the support, this side pressure pulley mechanism supports the base through guide support rod and support wheel simultaneously, and the support force is better, prevents the phenomenon that the translation is not smooth because the deformation appears, and the support can lift, thereby can drive pulley assembly to lift, so as to adjust the height of pulley assembly, thereby adjust the up and down clearance of door leaf frame.

Description

Technical Field

[0001] This utility model relates to the field of pulley technology, and more specifically, to a side-pressure pulley mechanism. Background Technology

[0002] A sliding door or window is a new type of door or window. The door or window sash can be slid horizontally on a guide rail and then pushed horizontally. Usually, the frame of the door or window sash is equipped with a pulley mechanism that can perform both sliding and pushing. For example, a sliding structure disclosed in Chinese patent document CN219587409U includes a sliding base and a connecting plate. The top of the sliding base is provided with a support wheel. The connecting plate is connected to the window sash and is connected to the sliding base through a connector. The connecting plate can move horizontally to both sides of the sliding base, and the connecting plate abuts against the support wheel.

[0003] However, in the existing pulley mechanisms that combine translation and push-pull functions, the slide is connected to the connecting plate via a linkage. This causes the linkage to swing to the other side if the thrust at both ends is uneven during the translation of the door or window sash. This results in a horizontal tilt of the slide during translation, making the translation difficult. Furthermore, the linkage is prone to deformation when supporting heavy door or window sashes, leading to uneven translation. Additionally, the pulleys cannot be adjusted in height, which may cause the door or window sash to tilt due to uneven installation or aging components, resulting in uneven door gaps and uneven vertical clearances after closing. Utility Model Content

[0004] In order to overcome the defects of the existing technology, this utility model provides a side-pressure pulley mechanism to solve the above problems.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a side-pressure pulley mechanism, including a connecting base plate, a transverse guide hole provided on the connecting base plate, a base provided on one side of the connecting base plate, a support block provided in the base, a guide support rod provided on the side of the support block near the connecting base plate, the guide support rod being slidably engaged in the transverse guide hole, a support wheel provided on the base and located on the same side as the guide support rod, the support wheel being in contact with the connecting base plate, a movable and liftable support installed in the base, and a swingable pulley assembly provided in the support.

[0006] In the aforementioned side-pressure pulley mechanism, the length direction of the transverse guide hole is the same as the width direction of the connecting base plate, and the rotation direction of the support wheel is the same as the length direction of the transverse guide hole.

[0007] In the aforementioned side-pressure pulley mechanism, fixing holes are respectively provided at the four corners of the connecting base plate.

[0008] In the aforementioned side-pressure pulley mechanism, a bearing is sleeved on the outer wall of one end of the guide support rod near the transverse guide hole, and a retaining ring is provided on the lower end face of the guide support rod. A retaining cavity is formed between the retaining ring and the bearing, and the wall of the transverse guide hole is engaged in the retaining cavity.

[0009] In the aforementioned side-pressure pulley mechanism, inclined holes are provided at both ends of the support, and two connecting rods are provided in the base. The two connecting rods are respectively inserted into the inclined holes on both sides. A sliding plate is provided at one end of the support, and a threaded hole is provided on the sliding plate. A screw hole is provided at the end of the base near the sliding plate, and a screw is engaged in the screw hole so that the threaded section of the screw is threadedly connected to the threaded hole.

[0010] In the aforementioned side-pressure pulley mechanism, a concave limiting ring is provided on the screw, and a card is installed between the base and the slide plate. The card has a slot that engages with the limiting ring.

[0011] In the aforementioned side-pressure pulley mechanism, the pulley assembly includes a hinged rod installed in a support. Both ends of the hinged rod are hinged to pulley mounting plates, and pulleys are installed at both ends between the two pulley mounting plates. The hinged rod is located above a support block, and the support block has openings on both sides. When the pulley swings above the openings on both sides, the pulley mounting plates touch the edge of the support block and are then limited.

[0012] In the aforementioned side-pressure pulley mechanism, both ends of the base are provided with support wheel seats that protrude towards the connecting base plate, and the support wheel is provided inside each support wheel seat.

[0013] In the aforementioned side-pressure pulley mechanism, flanges are provided on both sides of the connecting base plate.

[0014] The beneficial effects of this utility model are that the base is supported by both the guide support rod and the support wheel. Compared with the linkage structure used in the prior art, the support force is better, preventing the phenomenon of uneven translation due to deformation. Moreover, the support can be raised and lowered, thereby driving the pulley assembly to be raised and lowered, so as to adjust the height of the pulley assembly and thus adjust the vertical gap of the door frame. At the same time, the pulley assembly can swing within the support, which can better adapt to the tilting of the guide rail due to uneven installation or aging of parts. During the thrust process, the swing of the pulley assembly adapts to the changes, making the use smoother. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the side-pressure pulley mechanism of this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the side-pressure pulley mechanism of this utility model.

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the base.

[0018] Figure 4 This is a three-dimensional structural diagram of the support.

[0019] In the diagram: 1. Connecting base plate; 2. Horizontal guide hole; 3. Fixing hole; 4. Base; 5. Support wheel seat; 6. Support wheel; 7. Support block; 8. Guide support rod; 9. Bearing; 10. Connecting rod; 11. Screw hole; 12. Support; 13. Hinge rod; 14. Pulley mounting plate; 15. Pulley; 16. Angled hole; 17. Slide plate; 18. Threaded hole; 19. Opening; 20. Screw; 21. Limiting ring; 22. Card; 23. Slot. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Combination Figures 1 to 4 The illustrated side-pressure pulley mechanism includes a connecting base plate 1. Fixing holes 3 are provided at the four corners of the connecting base plate 1, allowing it to be mounted on a door or window frame. A transverse guide hole 2 is provided on the connecting base plate 1. A base 4 is provided on one side of the connecting base plate 1, and a support block 7 is provided inside the base 4. A guide support rod 8 is provided on the side of the support block 7 closest to the connecting base plate 1, and the guide support rod 8 is slidably engaged within the transverse guide hole 2. A support wheel 6, located on the same side as the guide support rod 8, is provided on the base 4 and contacts the connecting base plate 1. A movable and liftable support 12 is installed inside the base 4. The support 12 is equipped with a swingable pulley assembly. In this embodiment, the base 4 is supported by both the guide support rod 8 and the support wheel 6. Compared with the linkage structure used in the prior art, the support force is better, preventing the phenomenon of uneven translation due to deformation. Moreover, the support 12 can be raised and lowered, thereby driving the pulley assembly to be raised and lowered, so as to adjust the height of the pulley assembly and thus adjust the vertical gap of the door frame. At the same time, the pulley assembly can swing within the support 12, which can better adapt to the tilting of the guide rail due to uneven installation or aging of components. During the thrust process, the swing of the pulley assembly can make adaptive changes, making the use smoother.

[0022] In this embodiment, both ends of the base 4 are provided with support wheel seats 5 that protrude towards the connecting base plate 1, and each support wheel seat 5 is provided with a support wheel 6 to facilitate the installation of the support wheel 6.

[0023] It is worth noting that in this embodiment, the length direction of the transverse guide hole 2 is the same as the width direction of the connecting base plate 1, and the rotation direction of the support wheel 6 is the same as the length direction of the transverse guide hole 2; making the translation process smoother.

[0024] In this embodiment, a bearing 9 is sleeved on the outer wall of one end of the guide support rod 8 near the transverse guide hole 2, and the other end is hinged in the base 4. A retaining ring is provided on the lower end face of the guide support rod 8, and a retaining cavity is formed between the retaining ring and the bearing 9. The hole wall of the transverse guide hole 2 is engaged in the retaining cavity, so that the bearing 9 and the retaining ring are clamped on both sides of the base plate 1 to prevent them from separating.

[0025] In this embodiment, both ends of the support 12 are provided with oblique holes 16. Two connecting rods 10 are provided in the base 4, and the two connecting rods 10 are respectively inserted into the oblique holes 16 on both sides. A sliding plate 17 is fixedly provided at one end of the support 12. A threaded hole 18 is provided on the sliding plate 17. A screw hole 11 is provided at the end of the base 4 near the sliding plate 17. A screw 20 is engaged in the screw hole 11, so that the threaded section of the screw 20 is threadedly connected to the threaded hole 18. By turning the screw 20, the sliding plate 17 drives the support 12 to move. Under the action of the connecting rods 10 and the oblique holes 16, the support 12 rises and falls along the length direction of the oblique holes 16, thereby adjusting the height of the pulley assembly. The structure is simple and the adjustment is convenient.

[0026] Specifically, the screw 20 is provided with a concave limiting ring 21, and a card 22 is installed between the base 4 and the slide plate 17. The card 22 is fixed in the base 4, and the card 22 is provided with a slot 23. The slot 23 is engaged in the limiting ring 21, so that the screw 20 can be stably placed in the base 4 and prevented from loosening.

[0027] The pulley assembly of this embodiment includes a hinge rod 13 installed in the support 12. Both ends of the hinge rod 13 are hinged to pulley mounting plates 14. Pulleys 15 are installed at both ends between the two pulley mounting plates 14. The hinge rod 13 is located above the support block 7. The support block 7 has openings 19 on both sides. When the pulleys 15 swing above the openings 19 on both sides, the pulley mounting plates 14 touch the edge of the support block 7 and limit their movement. This allows the pulleys 15 on both sides to swing on the hinge rod 13 through the pulley mounting plates 14, thereby better adapting to the tilting of the guide rail due to uneven installation or component aging. During the thrust process, the pulley assembly swings to adapt to changes, making the use smoother.

[0028] It is also worth noting that both sides of the connecting base plate 1 in this embodiment are provided with flanges 24, and a translation cavity is formed between the flanges 24 on both sides. The base 4 translates within the translation cavity, which can play a limiting role.

[0029] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A side-pressure pulley mechanism, comprising a connecting base plate (1), characterized in that, A transverse guide hole (2) is provided on the connecting base plate (1). A base (4) is provided on one side of the connecting base plate (1). A support block (7) is provided inside the base (4). A guide support rod (8) is provided on the side of the support block (7) near the connecting base plate (1). The guide support rod (8) is slidably engaged in the transverse guide hole (2). A support wheel (6) is provided on the base (4) on the same side as the guide support rod (8). The support wheel (6) is in contact with the connecting base plate (1). A movable and lifting support (12) is installed inside the base (4). A swingable pulley assembly is provided inside the support (12).

2. The side-pressure pulley mechanism according to claim 1, characterized in that, The length direction of the transverse guide hole (2) is the same as the width direction of the connecting base plate (1), and the rotation direction of the support wheel (6) is the same as the length direction of the transverse guide hole (2).

3. The side-pressure pulley mechanism according to claim 1, characterized in that, Fixing holes (3) are provided at the four corners of the connecting base plate (1).

4. The side-pressure pulley mechanism according to claim 1, characterized in that, The guide support rod (8) has a bearing (9) sleeved on the outer wall of one end near the transverse guide hole (2). A retaining ring is provided on the lower end face of the guide support rod (8). A retaining cavity is formed between the retaining ring and the bearing (9). The hole wall of the transverse guide hole (2) is engaged in the retaining cavity.

5. A side-pressure pulley mechanism according to claim 1, characterized in that, Both ends of the support (12) are provided with inclined holes (16). Two connecting rods (10) are provided in the base (4). The two connecting rods (10) are respectively inserted into the inclined holes (16) on both sides. One end of the support (12) is provided with a sliding plate (17). A threaded hole (18) is provided on the sliding plate (17). The end of the base (4) near the sliding plate (17) is provided with a screw hole (11). A screw (20) is engaged in the screw hole (11) so that the threaded section of the screw (20) is threadedly connected to the threaded hole (18).

6. A side-pressure pulley mechanism according to claim 5, characterized in that, The screw (20) is provided with a concave limiting ring (21), and a card (22) is installed between the base (4) and the slide plate (17). The card (22) is provided with a card slot (23), and the card slot (23) is engaged in the limiting ring (21).

7. A side-pressure pulley mechanism according to claim 1, characterized in that, The pulley assembly includes a hinge rod (13) installed in the support (12). Both ends of the hinge rod (13) are hinged to pulley mounting plates (14). Pulleys (15) are installed at both ends between the two pulley mounting plates (14). The hinge rod (13) is located above the support block (7). The support block (7) has openings (19) on both sides. When the pulleys (15) swing above the openings (19) on both sides, the pulley mounting plates (14) touch the edge of the support block (7) and are then limited.

8. A side-pressure pulley mechanism according to claim 1, characterized in that, Both ends of the base (4) are provided with support wheel seats (5) that protrude toward the connecting base plate (1), and each support wheel seat (5) is provided with a support wheel (6).

9. A side-pressure pulley mechanism according to claim 1, characterized in that, Flanges (24) are provided on both sides of the connecting base plate (1).

Images