Sliding window pulley

Abstract

The utility model discloses a sliding window pulley, which relates to the technical field of pulleys and comprises a shell, a first pulley shell and a second pulley shell are movably arranged in the shell, a balance slider is movably arranged between the first pulley shell and the second pulley shell, and an adjusting component is arranged on the right side in the shell and used for extruding the second pulley shell. According to the sliding window pulley, the relative position of the first pulley shell and the second pulley shell is adjusted to adapt to the included angle between a window sash and a guide rail, self-balance of the sliding window pulley is achieved, the weight of the window sash is transmitted to the pulley, stress is even, the window sash is pushed smoothly without being blocked, and use experience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a sliding window pulley. Background Art

[0002] A sliding window, also known as a sash window, is a common window design widely used in homes and commercial buildings. Its characteristic is that the window sash moves along a horizontal track, which not only saves space but also facilitates ventilation. The pulley device is a key component to achieve smooth and quiet sliding of the sliding window. It is usually made of metal or plastic and is designed with bearings to reduce friction. A high-quality pulley device can significantly improve the service life and operating experience of the window, and also enhance the sealing performance and safety.

[0003] In the existing sliding window pulley device, the two pulleys usually can only synchronously adjust their height states. However, in actual applications, the window sash and the lower sliding rail cannot be completely parallel. If the pulley cannot adapt to the angle between the window sash and the sliding rail, it will cause the window sash to slide stuck and not smoothly, affecting the use experience. Summary of the Utility Model

[0004] Aiming at the defects existing in the above-mentioned prior art, the purpose of the utility model is to provide a sliding window pulley, which can solve the problem that the pulley cannot adapt to the angle between the window sash and the sliding rail, resulting in the window sash sliding stuck and not smoothly.

[0005] The purpose of the utility model is realized by adopting the following technical scheme:

[0006] A sliding window pulley includes a housing. A first slot inclined to the right is opened on the left side inside the housing. A first pulley housing and a second pulley housing are movably arranged inside the housing. A balance slider is movably arranged between the first pulley housing and the second pulley housing. An adjusting component is arranged on the right side inside the housing, and the adjusting component is used to squeeze the second pulley housing;

[0007] A first inclined surface is fixedly arranged on the left side of the first pulley housing. The first inclined surface can slide along the outer wall of the first slot. A first insertion rod is fixedly arranged on the first inclined surface. A guiding opening is opened on the outer wall of the first slot. The first insertion rod is inserted into the first slot through the guiding opening and slides inside the first slot. A first spring is arranged inside the first slot. One end of the first spring is sleeved on the first insertion rod, and the other end is fixedly arranged at the bottom of the first slot;

[0008] A balance inclined surface is fixedly arranged on the right side of the balance slider, and a second slot is opened on the balance inclined surface;

[0009] A second inclined surface is fixedly arranged on the left side of the second pulley housing. The second inclined surface can slide along the outer wall of the second slot. A second insertion rod is fixedly arranged on the second inclined surface. A guiding opening is formed in the outer wall of the second slot. The second insertion rod is inserted into the second slot through the guiding opening and slides in the second slot. A second spring is arranged in the second slot. One end of the second spring is sleeved on the second insertion rod, and the other end is fixedly arranged at the bottom of the second slot.

[0010] Preferably, the adjusting assembly includes an adjusting slider and an adjusting nut. The adjusting slider is movably arranged in the housing. The adjusting nut is fixedly arranged in the adjusting slider. An adjusting screw is rotatably arranged outside the housing. A hole is formed in the adjusting slider. The screw rod of the adjusting screw passes through the housing and is screwed into the hole of the adjusting slider. The adjusting nut is movably arranged on the screw rod of the adjusting screw.

[0011] Preferably, a limiting groove is formed on the right side of the adjusting slider. The adjusting nut is fixedly arranged in the limiting groove.

[0012] Preferably, a first groove is formed in the right end of the first pulley housing in the vertical direction. A first convex strip is fixedly arranged on the left side of the balance slider. The first convex strip is inserted into the first groove.

[0013] Preferably, a second groove is formed in the right end of the second pulley housing in the vertical direction. A second convex strip is fixedly arranged on the left side of the adjusting assembly. The second convex strip is inserted into the second groove.

[0014] Preferably, a first runner is rotatably arranged on the first pulley housing. A second runner is rotatably arranged on the second pulley housing. The first runner and the second runner pass through the bottom of the housing.

[0015] Preferably, sliding keys are fixedly arranged on both sides of the balance slider. A sliding groove is formed in the side surface of the housing. The sliding keys slide in the sliding groove.

[0016] Preferably, bumps are fixedly arranged above the first pulley housing and the second pulley housing. A positioning hole matching with the bumps is formed in the top of the housing.

[0017] The beneficial effects of the utility model are:

[0018] The sliding window pulley of the present utility model has a first pulley housing and a second pulley housing movably arranged within a housing, and a balance slider is movably arranged between the first pulley housing and the second pulley housing, enabling the sliding window pulley to adapt to the angle between the window sash and the guide rail by adjusting the relative positions of the first pulley housing and the second pulley housing, achieving self - balance of the sliding window pulley. The weight of the window sash is evenly transmitted to the pulley, and the window sash is pushed smoothly without jamming, providing a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an exploded view of the present utility model;

[0020] Figure 2 is an overall structural schematic diagram of the present utility model in the uncompressed state of the spring;

[0021] Figure 3 is an overall structural schematic diagram of the present utility model in the maximum compressed state of the spring;

[0022] Figure 4 is Figure 2 a sectional view of

[0023] Figure 5 is Figure 3 a sectional view of

[0024] Figure 6 is a structural schematic diagram of the balance slider of the present utility model;

[0025] Figure 7 is a structural schematic diagram of the adjusting slider of the present utility model;

[0026] Figure 8 is a structural schematic diagram of the first pulley housing and the second pulley housing of the present utility model.

[0027] In the figures: 100, housing; 200, first slot; 300, first pulley housing; 400, second pulley housing; 500, balance slider; 600, adjusting assembly; 601, adjusting slider; 602, adjusting nut; 700, first inclined surface; 800, first insertion rod; 900, first spring; 110, balance inclined surface; 120, second slot; 130, second inclined surface; 140, second insertion rod; 150, second spring; 160, adjusting screw; 170, limiting groove; 180, first groove; 190, first rib; 210, second groove; 220, second rib; 230, first runner; 240, second runner; 250, sliding key; 260, sliding groove; 270, convex block; 280, positioning hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer and more understandable, the following further describes the utility model in conjunction with the drawings and embodiments.

[0029] An embodiment provided by the utility model is as follows: Figures 1 to 8 As shown, a sliding window pulley includes a housing 100. A first slot 200 inclined to the right is opened on the left side inside the housing 100. A first pulley housing 300 and a second pulley housing 400 are movably arranged inside the housing 100. A balance slider 500 is movably arranged between the first pulley housing 300 and the second pulley housing 400. An adjusting assembly 600 is arranged on the right side inside the housing 100, and the adjusting assembly 600 is used to squeeze the second pulley housing 400;

[0030] A first inclined surface 700 is fixedly arranged on the left side of the first pulley housing 300. The first inclined surface 700 can slide along the outer wall of the first slot 200. A first insertion rod 800 is fixedly arranged on the first inclined surface 700. A guiding opening is opened on the outer wall of the first slot 200. The first insertion rod 800 is inserted into the first slot 200 through the guiding opening and slides inside the first slot 200. A first spring 900 is arranged inside the first slot 200. One end of the first spring 900 is sleeved on the first insertion rod 800, and the other end is fixedly arranged at the bottom of the first slot 200;

[0031] A balance inclined surface 110 is fixedly arranged on the right side of the balance slider 500, and a second slot 120 is opened on the balance inclined surface 110;

[0032] A second inclined surface 130 is fixedly arranged on the left side of the second pulley housing 400. The second inclined surface 130 can slide along the outer wall of the second slot 120. A second insertion rod 140 is fixedly arranged on the second inclined surface 130. A guiding opening is opened on the outer wall of the second slot 120. The second insertion rod 140 is inserted into the second slot 120 through the guiding opening and slides inside the second slot 120. A second spring 150 is arranged inside the second slot 120. One end of the second spring 150 is sleeved on the second insertion rod 140, and the other end is fixedly arranged at the bottom of the second slot 120.

[0033] During use, the staff installs the sliding window pulley on the sliding rail under the sliding window. Since there is an angle between the sliding window and the sliding rail, the staff adjusts the adjusting component 600 to move the adjusting component 600 to the left to squeeze the second pulley housing 400. Since the second inclined surface 130 slides along the outer wall of the second slot 120, the horizontal force received by the second plug rod 140 will be decomposed into a force along the direction of the second slot 120. There is a guiding opening on the outer wall of the second slot 120. After being stressed, the second plug rod 140 moves along the guiding opening to the bottom of the second slot 120, squeezing the second spring 150, and the second pulley housing 400 moves left and downward. At this time, the second pulley housing 400 squeezes the balance slider 500, and the balance slider 500 moves left to squeeze the first pulley housing 300. Since the first inclined surface 700 slides along the outer wall of the first slot 200, the horizontal force received by the first plug rod 800 will be decomposed into a force along the direction of the first slot 200. There is a guiding opening on the outer wall of the first slot 200. After being stressed, the first plug rod 800 moves along the guiding opening to the bottom of the first slot 200, squeezing the first spring 900, and the first pulley housing 300 moves left and downward. When the first pulley housing 300 and the second pulley housing 400 simultaneously contact the sliding rail, they stop moving. At this time, the connection line of the centers of the first pulley housing 300 and the second pulley housing 400 is parallel to the sliding rail, realizing the self-balancing of the sliding window pulley.

[0034] Preferably, the adjusting component 600 includes an adjusting slider 601 and an adjusting nut 602. The adjusting slider 601 is movably arranged in the housing 100, the adjusting nut 602 is fixedly arranged in the adjusting slider 601, an adjusting screw 160 is rotatably arranged outside the housing 100, a hole is formed in the adjusting slider 601, the screw rod of the adjusting screw 160 passes through the housing 100 and is screwed into the hole of the adjusting slider 601, and the adjusting nut 602 is movably arranged on the screw rod of the adjusting screw 160.

[0035] During use, the staff turns the adjusting screw 160. The adjusting screw 160 rotates outside the housing 100, and the adjusting nut 602 moves on the screw rod of the adjusting screw 160, thereby driving the adjusting slider 601 to move.

[0036] Preferably, a limiting groove 170 is formed on the right side of the adjusting slider 601, the adjusting nut 602 is fixedly arranged in the limiting groove 170. The limiting groove 170 is arranged on the right side of the adjusting slider 601, which can ensure that when turning the adjusting screw 160 to push the adjusting slider 601 to move left, the length of the adjusting screw 160 can be minimized to save costs. At the same time, this setting method facilitates the installation of the adjusting nut 602 and improves the installation efficiency.

[0037] Preferably, a first groove 180 is formed in the right end of the first pulley housing 300 in the vertical direction. A first rib 190 is fixedly arranged on the left side of the balance slider 500. The first rib 190 is inserted into the first groove 180. By providing the mutually cooperating first groove 180 and first rib 190, the lateral movement of the balance slider 500 becomes more stable.

[0038] Preferably, a second groove 210 is formed in the right end of the second pulley housing 400 in the vertical direction. A second rib 220 is fixedly arranged on the left side of the adjusting assembly 600. The second rib 220 is inserted into the second groove 210. By providing the mutually cooperating second groove 210 and second rib 220, the movement of the adjusting assembly 600 becomes more stable when pressing the second pulley housing 400.

[0039] Preferably, a first runner 230 is rotatably arranged on the first pulley housing 300, and a second runner 240 is rotatably arranged on the second pulley housing 400. The first runner 230 and the second runner 240 pass through the bottom of the housing 100.

[0040] Preferably, sliding keys 250 are fixedly arranged on both sides of the balance slider 500. A sliding groove 260 is formed in the side surface of the housing 100. The sliding keys 250 slide in the sliding groove 260. When installing the sliding window pulley, the staff can manually move the sliding keys 250 to adjust the heights of the first pulley housing 300 and the second pulley housing 400 to assist in the installation.

[0041] Preferably, bumps 270 are fixedly arranged above the first pulley housing 300 and the second pulley housing 400. A positioning hole 280 matching the bumps 270 is formed in the top of the housing 100. When installing the first pulley housing 300 and the second pulley housing 400, the staff puts the bumps 270 into the positioning hole 280, which is convenient for the positioning installation of the first pulley housing 300 and the second pulley housing 400.

[0042] The working principle in this embodiment is more specifically as follows:

[0043] The staff installs the sliding window pulley on the slide rail below the sliding window. Due to the angle between the sliding window and the slide rail, the staff turns the adjusting screw 160, and the adjusting screw 160 drives the adjusting nut 602 to move to the left to squeeze the second pulley housing 400. Since the second plug rod 140 squeezes the second spring 150, the second pulley housing 400 moves to the lower left. At this time, the second pulley housing 400 squeezes the balancing slider 500, and the balancing slider 500 moves to the left to squeeze the first pulley housing 300. Due to the first plug rod 8 00 squeezes the first spring 900, the first pulley housing 300 moves to the lower left, and the first rotating wheel 230 and the second rotating wheel 240 stop turning the adjusting screw 160 after they contact the slide rail at the same time. At this time, the line connecting the center points of the first rotating wheel 230 and the second rotating wheel 240 is parallel to the slide rail, so that the sliding window pulley is self-balancing. In addition, the staff can also make auxiliary adjustments by toggling the sliding key 250 when turning the adjusting screw 160. The height of the first rotating wheel 230 and the second rotating wheel 240 can be adjusted by up to 14 mm.

[0044] The sliding window pulley of the utility model is provided with a first pulley shell 300 and a second pulley shell 400 movably in a shell body 100, and a balancing slider 500 is movably provided between the first pulley shell 300 and the second pulley shell 400, so that the sliding window pulley can adapt to the angle between the window sash and the guide rail by adjusting the relative positions of the first pulley shell 300 and the second pulley shell 400, thereby realizing self-balancing of the sliding window pulley, the weight of the window sash is transmitted to the pulley with uniform force, the window sash can be pushed smoothly without jamming, and the user experience is good.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims

1. A sliding window pulley, comprising a housing (100), characterized in that: A first slot (200) tilted to the right is provided on the left side of the housing (100); a first pulley housing (300) and a second pulley housing (400) are movably provided in the housing (100); a balancing slider (500) is movably provided between the first pulley housing (300) and the second pulley housing (400); an adjusting component (600) is provided on the right side of the housing (100); the adjusting component (600) is used to squeeze the second pulley housing (400); A first inclined surface (700) is fixedly provided on the left side of the first pulley housing (300), and the first inclined surface (700) can slide along the outer wall of the first slot (200). A first insertion rod (800) is fixedly provided on the first inclined surface (700), and a guide opening is provided on the outer wall of the first slot (200). The first insertion rod (800) is inserted into the first slot (200) through the guide opening and slides in the first slot (200). A first spring (900) is provided in the first slot (200), and one end of the first spring (900) is sleeved on the first insertion rod (800), and the other end is fixedly provided at the bottom of the first slot (200); A balancing inclined surface (110) is fixedly provided on the right side of the balancing sliding block (500), and a second slot (120) is provided on the balancing inclined surface (110); A second inclined surface (130) is fixedly arranged on the left side of the second pulley housing (400), and the second inclined surface (130) can slide along the outer wall of the second slot (120). A second insertion rod (140) is fixedly arranged on the second inclined surface (130), and a guide opening is opened on the outer wall of the second slot (120). The second insertion rod (140) is inserted into the second slot (120) through the guide opening and slides in the second slot (120). A second spring (150) is arranged in the second slot (120), and one end of the second spring (150) is sleeved on the second insertion rod (140), and the other end is fixedly arranged at the bottom of the second slot (120).

2. The sliding window pulley according to claim 1, characterized in that: The adjustment assembly (600) comprises an adjustment slider (601) and an adjustment nut (602); the adjustment slider (601) is movably arranged in the housing (100); the adjustment nut (602) is fixedly arranged in the adjustment slider (601); an adjustment screw (160) is rotatably arranged outside the housing (100); a hole is provided in the adjustment slider (601); the screw rod of the adjustment screw (160) passes through the housing (100) and is screwed into the hole of the adjustment slider (601); and the adjustment nut (602) is movably arranged on the screw rod of the adjustment screw (160).

3. The sliding window pulley according to claim 2, characterized in that: A limiting groove (170) is provided on the right side of the adjusting slide block (601), and the adjusting nut (602) is fixedly disposed in the limiting groove (170).

4. The sliding window pulley according to claim 1, characterized in that: A first groove (180) is provided at the right end of the first pulley housing (300) in the vertical direction, and a first convex strip (190) is fixedly provided on the left side of the balancing slider (500), wherein the first convex strip (190) is inserted into the first groove (180).

5. The sliding window pulley according to claim 1, characterized in that: A second groove (210) is provided at the right end of the second pulley housing (400) in the vertical direction, and a second convex strip (220) is fixedly provided on the left side of the adjustment component (600), and the second convex strip (220) is inserted into the second groove (210).

6. The sliding window pulley according to claim 1, characterized in that: A first rotating wheel (230) is rotatably disposed on the first pulley housing (300), and a second rotating wheel (240) is rotatably disposed on the second pulley housing (400). The first rotating wheel (230) and the second rotating wheel (240) pass through the bottom of the housing (100).

7. The sliding window pulley according to claim 1, characterized in that: Sliding keys (250) are fixedly arranged on both sides of the balancing slider (500), and a sliding groove (260) is provided on the side of the housing (100), and the sliding key (250) slides in the sliding groove (260).

8. The sliding window pulley according to claim 1, characterized in that: A protrusion (270) is fixedly provided above the first pulley housing (300) and the second pulley housing (400), and a positioning hole (280) matching with the protrusion (270) is provided on the top of the housing (100).

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