Adjusting pulley with locking function

Abstract

The utility model relates to the technical field of door and window hardware, in particular to an adjusting pulley with a locking function, when leaving a factory, an adjusting assembly is rotated to a bottom limit position, at the moment, a limiting assembly locks the adjusting assembly relative to a shell assembly, the adjusting assembly is locked and cannot rotate, so that the pulley cannot move along the height of the shell assembly; and the height consistency of the pulleys of the shipment products relative to the shell assembly is ensured, and the shipment uniformity is ensured. When the height needs to be adjusted, the adjusting assembly is driven to rotate, the shell can be driven to move up and down, the height of the pulley is adjusted, and the adjusting cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window hardware, in particular to an adjusting pulley with a locking function. Background Art

[0002] With the development of door and window technology, beautiful and convenient sliding doors and windows have emerged. By installing a pulley on the fan body, the fan body can be slidably connected to the frame of the sliding door and window. In the prior art, in order to enable the fan body to better achieve a sliding connection with the frame, a pulley with an adjustable distance between the pulley and the frame of the sliding door and window has emerged. However, when the pulley leaves the factory, it often happens that the height of each pulley is inconsistent relative to the shell on which it is installed, which makes the height of each pulley shipped inconsistent. And each sliding door and window is generally installed with multiple pulleys. In order to make each pulley have the same height relative to the slide groove of the frame, and then make the pulley of the pulley better roll in the slide groove, the installer must need to debug the height of each pulley relative to the shell at the installation site, which invisibly increases the time required for the installation process and the installation cost is high. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide an adjusting pulley with a locking function.

[0004] The utility model adopts the following technical solutions:

[0005] An adjusting pulley with a locking function, comprising:

[0006] pulley;

[0007] A housing assembly, the housing assembly comprising an inner housing provided with a first mounting cavity, and an outer housing slidably connected to the inner housing; the outer housing is partially accommodated in the first mounting cavity, and the pulley is rotatably connected to the outer housing;

[0008] An adjusting component, the adjusting component is disposed in the first mounting cavity and is rotatably connected to the inner shell; the adjusting component is in contact with the outer shell, and when the adjusting component rotates relative to the inner shell, the adjusting component can push the outer shell to move along the height direction of the inner shell;

[0009] The limiting assembly is arranged between the inner shell and the adjusting assembly. When the adjusting assembly rotates to the bottom limit position, the limiting assembly locks the adjusting assembly relative to the shell assembly.

[0010] Preferably, the limiting assembly includes a limiting member; a limiting protrusion is provided on the side of the limiting member facing the adjusting assembly; a limiting clamping hole is provided on the adjusting assembly; and a gap is left between the limiting member and the inner wall of the inner shell;

[0011] When the limiting member moves towards the adjusting assembly, the limiting bump is engaged with the limiting hole to lock the adjusting assembly;

[0012] When the limiting member moves away from the adjusting assembly, the limiting bump disengages from the limiting hole to unlock the adjusting assembly.

[0013] Preferably, a limiting groove is provided on the inner wall of the first installation cavity, the depth of the limiting groove is greater than the thickness of the limiting member, and the limiting member is slidably connected in the limiting groove.

[0014] Preferably, the limiting assembly further includes a first elastic member, one end of the first elastic member abuts against the side of the limiting member away from the adjusting assembly, and the other end of the first elastic member abuts against the inner wall of the first installation cavity; the first elastic member is used to push the limiting member towards the adjusting assembly.

[0015] Preferably, the adjusting assembly includes a first rotating member rotatably connected in the first installation cavity, and the limiting hole is provided on the first rotating member;

[0016] When the first rotating member rotates relative to the inner shell, it can push the outer shell to move along the height direction of the inner shell; when the first rotating member rotates to the bottom limit position, the limiting bump extends into the limiting hole to lock the first rotating member.

[0017] Preferably, the adjusting assembly further includes a second rotating member rotatably connected in the first installation cavity, a pushing block abutting against the lower end surface of the second rotating member, and an adjusting member;

[0018] The second rotating member is in transmission connection with the first rotating member, an adjusting inclined surface is provided on the side of the pushing block away from the second rotating member, the adjusting inclined surface extends from bottom to top along the height direction of the inner shell and from front to back along the width direction of the inner shell, and one end of the adjusting member abuts against the adjusting inclined surface;

[0019] The adjusting member moves along the thickness direction of the inner shell, drives the pushing block to move along the height direction of the inner shell through the adjusting inclined surface, and the pushing block drives the second rotating member to rotate.

[0020] Preferably, a first transmission tooth is provided at one end of the first rotating member facing the second rotating member, and a second transmission tooth is provided at one end of the second rotating member facing the first rotating member; the first transmission tooth is meshed with the second transmission tooth to realize the transmission connection between the first rotating member and the second rotating member.

[0021] Preferably, at least one support platform is provided in the first installation cavity;

[0022] When the first rotating member rotates to the bottom limit position, one end of the first rotating member overlaps the support platform; when the second rotating member rotates to the bottom limit position, one end of the second rotating member overlaps the support platform.

[0023] Preferably, a pressing hole is provided on the inner shell, and a pressing column is protrudingly provided on the side of the limiting member away from the first elastic member, and the pressing column extends into the pressing hole;

[0024] By pressing the pressing column, the limiting member moves away from the adjusting assembly, and the limiting protrusion is disengaged from the limiting clamping hole.

[0025] Preferably, the shell assembly also includes a cover plate fixed to the front end of the inner shell, the cover plate is provided with a limiting slide groove extending along the height direction of the inner shell, and the outer shell is provided with a limiting slider on the side facing the cover plate; the limiting slider is slidably connected in the limiting slide groove to limit the vertical movement of the inner shell.

[0026] The beneficial effects of the utility model are:

[0027] The adjusting pulley with locking function involved in the utility model rotates the adjusting component to the bottom limit position when leaving the factory. At this time, the limit component locks the adjusting component relative to the shell component. The adjusting component is locked and cannot rotate, so that the pulley cannot move along the height of the shell component, ensuring that the pulley of the shipped product has the same height relative to the shell component, ensuring the uniformity of shipment. When the height needs to be adjusted, the adjusting component is driven to rotate, which can drive the shell to move up and down, thereby adjusting the height of the pulley, and the adjustment cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an exploded view of the adjusting pulley with locking function of the utility model;

[0029] Figure 2 for Figure 1 The schematic diagram of the adjustment pulley installation is shown;

[0030] Figure 3 for Figure 2 The schematic diagram of the internal structure of the adjusting pulley shown;

[0031] Figure 4 for Figure 2 A schematic diagram of the adjusting pulley shown in a first adjustment position;

[0032] Figure 5 for Figure 2 A schematic diagram of the adjusting pulley shown in a second adjustment position;

[0033] Figure 6 is Figure 4 a partial schematic view of the adjusting pulley shown in

[0034] Figure 7a is Figure 6 an enlarged view of the structure at position A shown in

[0035] Figure 7b is Figure 7a a cross-sectional view of the structure shown in

[0036] Figure 8a is Figure 6 an enlarged view of the structure at position A shown in

[0037] Figure 8b is Figure 8a a cross-sectional view of the structure shown in

[0038] Figure 9a is Figure 6 an enlarged view of the structure at position B shown in

[0039] Figure 9b is Figure 9a a left view of the structure shown in

[0040] Figure 10a is Figure 6 an enlarged view of the structure at position B shown in

[0041] Figure 10b is Figure 10a a left view of the structure shown in

[0042] Reference numerals in the figure:

[0043] 100 - pulley;

[0044] 200 - housing assembly;

[0045] 210 - inner housing; 211 - first installation cavity; 212 - limiting groove; 213 - support platform; 214 - pressing hole; 215 - limiting seat; 220 - outer housing; 221 - limiting slider; 222 - rib; 230 - cover plate; 231 - limiting chute;

[0046] 300 - adjusting assembly;

[0047] 310 - first rotating member; 311 - limiting clamping hole; 312 - first transmission tooth; 320 - second rotating member; 321 - second transmission tooth; 330 - pushing block; 331 - adjusting inclined surface; 340 - adjusting member; 350 - second elastic member; 360 - rotating shaft;

[0048] 400 - limiting assembly;

[0049] 410 - Limiting member; 411 - Limiting bump; 412 - Pressing column; 420 - First elastic member. Detailed implementation manner

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical direction", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] As Figures 1 to 3As shown, the adjusting pulley 100 with a locking function of the present utility model is used to be installed on the sash of a sliding window or door, so that the sash is slidably engaged with the frame of the sliding window or door; it includes a pulley 100, a housing assembly 200, an adjusting assembly 300, and a limiting assembly 400. The housing assembly 200 includes an inner housing 210 provided with a first installation cavity 211, and an outer housing 220 slidably connected to the inner housing 210; a part of the outer housing 220 is accommodated in the first installation cavity 211, and the pulley 100 is rotatably connected to the outer housing 220. The adjusting assembly 300 is disposed in the first installation cavity 211 and rotatably connected to the inner housing 210; the adjusting assembly 300 abuts against the outer housing 220, and when the adjusting assembly 300 rotates relative to the inner housing 210, the adjusting assembly 300 can push the outer housing 220 to move along the height direction of the inner housing 210. The limiting assembly 400 is disposed between the inner housing 210 and the adjusting assembly 300, and when the adjusting assembly 300 rotates to the bottom limit position, the limiting assembly 400 locks the adjusting assembly 300 relative to the housing assembly 200.

[0054] When the adjusting pulley 100 is completed in processing and manufacturing and needs to leave the factory, the processing personnel rotate the adjusting assembly 300 to rotate it to the bottom limit position, as shown in the figure. At this time, the limiting assembly 400 locks the adjusting assembly 300 relative to the housing assembly 200, and the adjusting assembly 300 cannot rotate relative to the housing assembly 200; since the adjusting assembly 300 is locked, the pulley 100 cannot move along the height direction of the housing assembly 200 at this time. In addition, at this time, the pulley 100 is located at the lowest position relative to the housing assembly 200; effectively ensuring that the heights of the pulleys 100 leaving the factory relative to the housing assembly 200 are the same. Ensuring the unity of the product, there is no need to adjust multiple pulleys 100 to the same height during the installation process, reducing the installation cost.

[0055] When the height of the pulley 100 is not compatible with the depth of the window or door chute, it is only necessary to drive the adjusting assembly 300 to rotate relative to the inner housing 210, and then push the outer housing 220 to move along the height direction of the inner housing 210 to adjust the height of the pulley 100; the adjustment difficulty is low.

[0056] The following specifically describes the structure of the adjusting pulley 100 with a locking function of the present utility model.

[0057] Please refer to Figure 1 , a limiting assembly 400 provided in an embodiment of the present utility model includes a limiting member 410; a limiting protrusion 411 is provided on one side of the limiting member 410 facing the adjusting assembly 300; a limiting card hole 311 is provided on the adjusting assembly 300; a gap is left between the limiting member 410 and the inner wall of the inner housing 210, so the limiting member 410 can move along the thickness direction of the inner housing 210. As Figure 7a and Figure 7bAs shown, when the limiting member 410 moves towards the adjusting assembly 300, the limiting bump 411 is engaged with the limiting card hole 311, thereby realizing the locking of the adjusting assembly 300. Conversely, as Figure 8a and 8b shown, when the limiting member 410 moves away from the adjusting assembly 300, the limiting bump 411 disengages from the limiting card hole 311, realizing the unlocking of the adjusting assembly 300. Using this structure to lock or unlock the adjusting assembly 300 has low manufacturing cost and is simple and convenient to operate. Further, a limiting groove 212 is provided on the inner wall of the first installation cavity 211, and the depth of the limiting groove 212 is greater than the thickness of the limiting member 410. The limiting member 410 can be slidably connected in the limiting groove 212. At the same time, in this embodiment, the limiting groove 212 adopts a V-shaped groove structure, and the structure of the limiting groove 212 matches the outer shape structure of the limiting member 410, so that the limiting member 410 can be clamped into the limiting groove 212 and is not likely to move left and right.

[0058] Please refer to Figure 1 , a limiting assembly 400 provided by an embodiment of the present invention further includes a first elastic member 420. One end of the first elastic member 420 abuts against the side of the limiting member 410 away from the adjusting assembly 300, and the other end of the first elastic member 420 abuts against the inner wall of the first installation cavity 211. In the normal state, the first elastic member 420 continuously applies a thrust force towards the adjusting assembly 300 to the limiting member 410. As Figure 7a and Figure 7b shown, when the adjusting assembly 300 rotates to the bottom limit position at this time, the limiting bump 411 is aligned with the limiting card hole 311. The first elastic member 420 applies a thrust force to the limiting member 410, and the limiting member 410 moves towards the adjusting assembly 300 under the push of the first elastic member 420, so that the limiting bump 411 extends into the limiting card hole 311, realizing the locking of the adjusting assembly 300 by the limiting assembly 400.

[0059] Please refer to Figure 1 , Figure 4 and Figure 5 , an adjusting assembly 300 provided by an embodiment of the present invention includes a first rotating member 310 rotatably connected in the first installation cavity 211, and the limiting card hole 311 is provided on the first rotating member 310; one end of the first rotating member 310 is rotatably connected to the inner shell 210. As shown in the figure, when the first rotating member 310 rotates relative to the inner shell 210, the upper end of the first rotating member 310 pushes the outer shell 220 to move along the height direction of the inner shell 210, thereby realizing the height adjustment of the pulley 100. As shown in the figure, the first rotating member 310 rotates to the bottom limit position, at this time the limiting bump 411 extends into the limiting card hole 311, and the first rotating member 310 is locked.

[0060] Please refer to Figure 1 , Figure 4and Figure 5 In addition, the adjusting assembly 300 provided by an embodiment of the present utility model further includes a second rotating member 320 rotatably connected in the first installation cavity 211, a pushing block 330 abutted against the lower end surface of the second rotating member 320, and an adjusting member 340. The second rotating member 320 is in transmission connection with the first rotating member 310. An adjusting inclined surface 331 is provided on a side of the pushing block 330 away from the second rotating member 320. The adjusting inclined surface 331 extends from bottom to top along the height direction of the inner shell 210 and from front to back along the width direction of the inner shell 210. One end of the adjusting member 340 abuts against the adjusting inclined surface 331. A first transmission tooth 312 is provided at an end of the first rotating member 310 facing the second rotating member 320, and a second transmission tooth 321 is provided at an end of the second rotating member 320 facing the first rotating member 310; the first transmission tooth 312 is engaged with the second transmission tooth 321 to realize the transmission connection between the first rotating member 310 and the second rotating member 320.

[0061] The adjusting member 340 moves along the thickness direction of the inner shell 210 and abuts against the adjusting inclined surface 331. When the adjusting member 340 moves along the thickness direction of the housing assembly 200 to abut against the adjusting inclined surface 331, as Figure 9a 、 Figure 9b 、 Figure 10a 、 Figure 10b shown, at this time, when the adjusting member 340 continues to move leftward along the thickness direction of the housing assembly 200, the adjusting inclined surface 331 moves upward under the drive of the adjusting member 340, thereby pushing the pushing block 330 to move along its own height direction. Finally, the second rotating member 320 is driven by the pushing block 330 to rotate relative to the housing assembly 200, and the first rotating member 310 rotates synchronously under the drive of the second rotating member 320, realizing the movement of the pulley 100 relative to the housing assembly 200 in the height direction, and the adjustment process is relatively simple and convenient.

[0062] Specifically, the adjusting pulley 100 with a locking function provided by an embodiment of the present utility model further includes a second elastic member 350. One end of the second elastic member 350 is connected to the first rotating member 310, and the other end of the second elastic member 350 is connected to the inner shell 210; when the first rotating member 310 rotates clockwise relative to the housing assembly 200, the second elastic member 350 can apply a rotational driving force to the first rotating member 310 to rotate towards the second rotating member 320.

[0063] Please refer to Figure 4 and 5 , at least one support platform 213 is provided in the first installation cavity 211, as Figure 4As shown, when the first rotating member 310 rotates to the bottom limit position, one end of the first rotating member 310 overlaps the support platform 213, so that the limit clamping hole 311 is aligned with the limit protrusion 411, so that the limit assembly 400 locks the adjustment assembly 300. When the second rotating member 320 rotates to the bottom limit position, one end of the second rotating member 320 overlaps the support platform 213.

[0064] See also Figure 1 The adjusting pulley 100 with a locking function provided in one embodiment of the utility model further includes two rotating shafts 360 , which are fixed in the first installation cavity 211 , and the first rotating member 310 and the second rotating member 320 are both rotatably connected to the rotating shafts 360 to realize rotation in the first installation cavity 211 .

[0065] See also Figure 1 and Figure 2 A pressing hole 214 is provided on the inner shell 210, and a pressing column 412 is convexly provided on the side of the limiting member 410 away from the first elastic member 420, and the pressing column 412 extends into the pressing hole 214. Specifically, when the height of the pulley 100 needs to be adjusted, the pressing column 412 is pressed to move the limiting member 410 along the thickness direction of the inner shell 210, so that the limiting protrusion 411 is disengaged from the limiting clamping hole 311, unlocking the first rotating member 310, and then the first rotating member 310 can rotate to adjust the height of the pulley 100.

[0066] See also Figure 1 The shell assembly 200 also includes a cover plate 230 fixed to the front end of the inner shell 210, and the cover plate 230 is provided with a limiting slide groove 231 extending along the height direction of the inner shell 210, and the outer shell 220 is provided with a limiting slider 221 on the side facing the cover plate 230; the limiting slider 221 is slidably connected in the limiting slide groove 231 to limit the vertical movement of the inner shell 210.

[0067] Specifically, the inner shell 210 extends upward to be provided with a limit seat 215 with a U-shaped horizontal cross-section, and convex strips 222 are provided on both sides of the outer shell 220. The convex strips 222 are assembled in the limit seat 215 to limit the vertical movement of the inner shell 210.

[0068] Compared with the prior art, for the adjusting pulley 100 with a locking function involved in the present utility model, when leaving the factory, the adjusting assembly 300 is rotated to the bottom limit position. At this time, the limiting assembly 400 locks the adjusting assembly 300 relative to the housing assembly 200, and the adjusting assembly 300 is locked and cannot rotate, so that the pulley 100 cannot move along the height of the housing assembly 200, ensuring that the height of the pulley 100 of the shipped product relative to the housing assembly 200 is consistent and ensuring the unity of shipment. When the height needs to be adjusted, driving the adjusting assembly 300 to rotate can drive the outer shell 220 to move up and down, thereby adjusting the height of the pulley 100, and the adjustment cost is low.

[0069] The above only expresses the preferred technical solution of the present utility model, and its description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and the present utility model also intends to include these changes and deformations.

Claims

1. An adjusting pulley with a locking function, characterized in that, include: pulley; A housing assembly, the housing assembly comprising an inner housing provided with a first mounting cavity, and an outer housing slidably connected to the inner housing; the outer housing is partially accommodated in the first mounting cavity, and the pulley is rotatably connected to the outer housing; An adjusting component, the adjusting component is disposed in the first mounting cavity and is rotatably connected to the inner shell; the adjusting component is in contact with the outer shell, and when the adjusting component rotates relative to the inner shell, the adjusting component can push the outer shell to move along the height direction of the inner shell; The limiting assembly is arranged between the inner shell and the adjusting assembly. When the adjusting assembly rotates to the bottom limit position, the limiting assembly locks the adjusting assembly relative to the shell assembly.

2. The adjusting pulley with a locking function according to claim 1, characterized in that, The limiting assembly includes a limiting member; a limiting protrusion is provided on one side of the limiting member facing the adjusting assembly; a limiting clamping hole is provided on the adjusting assembly; and a gap is left between the limiting member and the inner wall of the inner shell; When the limiting member moves toward the adjusting assembly, the limiting protrusion is engaged with the limiting clamping hole to lock the adjusting assembly; When the limiting member moves away from the adjusting assembly, the limiting protrusion is disengaged from the limiting clamping hole to unlock the adjusting assembly.

3. The adjusting pulley with a locking function according to claim 2, characterized in that, A cavity wall of the first installation cavity is provided with a limiting groove, the depth of the limiting groove is greater than the thickness of the limiting member, and the limiting member is slidably connected in the limiting groove.

4. The adjusting pulley with a locking function according to claim 2, wherein, The limiting component also includes a first elastic member, one end of which abuts against a side of the limiting member away from the adjusting component, and the other end of the first elastic member abuts against an inner wall of the first mounting cavity; the first elastic member is used to push the limiting member closer to the adjusting component.

5. The adjusting pulley with a locking function according to claim 4, characterized in that, The adjustment assembly includes a first rotating member rotatably connected to the first mounting cavity, and the limit clamping hole is provided on the first rotating member; When the first rotating member rotates relative to the inner shell, it can push the outer shell to move along the height direction of the inner shell; when the first rotating member rotates to the bottom limit position, the limiting protrusion extends into the limiting clamping hole to lock the first rotating member.

6. The adjusting pulley with a locking function according to claim 5, characterized in that, The adjustment assembly further includes a second rotating member rotatably connected to the first mounting cavity, a pushing block abutting against a lower end surface of the second rotating member, and an adjustment member; The second rotating member is transmission-connected with the first rotating member, and an adjusting slope is provided on a side of the pushing block away from the second rotating member. The adjusting slope extends from bottom to top along the height direction of the inner shell and from front to back along the width direction of the inner shell, and one end of the adjusting member abuts against the adjusting slope; The adjusting member moves along the thickness direction of the inner shell, and drives the pushing block to move along the height direction of the inner shell through the adjusting inclined surface, and the pushing block drives the second rotating member to rotate.

7. The adjusting pulley with a locking function according to claim 6, wherein, The first rotating member is provided with a first transmission tooth at one end facing the second rotating member, and the second rotating member is provided with a second transmission tooth at one end facing the first rotating member; the first transmission tooth is meshed with the second transmission tooth to achieve a transmission connection between the first rotating member and the second rotating member.

8. The adjusting pulley with a locking function according to claim 6, characterized in that, At least one supporting platform is provided in the first installation cavity; When the first rotating member rotates to the bottom limit position, one end of the first rotating member overlaps the support platform; when the second rotating member rotates to the bottom limit position, one end of the second rotating member overlaps the support platform.

9. The adjusting pulley with a locking function according to claim 6, characterized in that, The inner shell is provided with a pressing hole, and a pressing column is protrudingly provided on a side of the limiting member away from the first elastic member, and the pressing column extends into the pressing hole; By pressing the pressing column, the limiting member moves away from the adjusting assembly, and the limiting protrusion is disengaged from the limiting clamping hole.

10. The adjusting pulley with a locking function according to claim 1, characterized in that, The shell assembly also includes a cover plate fixed to the front end of the inner shell, the cover plate is provided with a limiting slide groove extending along the height direction of the inner shell, and the outer shell is provided with a limiting slider on the side facing the cover plate; the limiting slider is slidably connected in the limiting slide groove to limit the vertical movement of the inner shell.

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