Adjustable pulley assembly for doors and windows

Abstract

The adjustable pulley assembly comprises a shell, an installation frame, an adjusting piece and a pulley piece, an installation cavity is formed in the shell, an opening is formed in the bottom of the installation cavity, the installation frame is arranged in the installation cavity, and the end of the adjusting piece penetrates through one end of the shell to be connected with the installation frame. The pulley piece is arranged in the mounting cavity and connected with the mounting frame and the shell, the bottom of the pulley piece protrudes out of the mounting cavity, the adjusting piece controls the pulley piece to swing by adjusting the mounting frame, and the two sides, corresponding to the pulley piece, of the shell protrude outwards to form protruding parts. The installation frame is installed in the installation cavity of the shell, the pulley piece is installed in the installation cavity through the installation frame, the adjusting piece adjusts the height of the pulley piece by adjusting the installation frame, the positions, corresponding to the pulley piece, of the two sides of the shell protrude outwards to form the protruding parts, and the distance between the pulley and the shell is increased through the arrangement of the protruding parts. The pulleys are prevented from being in contact with the shell in the rolling process, and the rolling smoothness of the pulleys is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of hardware equipment, and in particular relates to an adjustable pulley assembly for doors and windows. Background Art

[0002] Most of the current residential buildings are equipped with sliding doors and windows. The advantages of sliding doors and windows are simplicity, beauty, large window width, large glass blocks, wide field of vision, high light rate, easy glass cleaning, flexible use, safety and reliability, long service life, opening in one plane, taking up less space, easy installation of screens, etc. In order to make better use of sliding doors and windows, pulleys are installed at the bottom of the aluminum alloy doors and windows to make the sliding of the doors and windows smoother.

[0003] The pulley can convert sliding friction into rolling friction, which can greatly reduce friction and is widely used in our daily life. There is an adjustment screw in the pulley assembly. By turning the screw, the wheel height can be adjusted.

[0004] However, the pulley is prone to friction with the outer shell, which may cause the pulley to be blocked or stuck during rolling after long-term use. Utility Model Content

[0005] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provides an adjustable pulley assembly for doors and windows. A shell, a mounting frame, an adjusting member and a pulley member are arranged. The mounting frame is installed in the mounting cavity of the shell, and the pulley member is installed in the mounting cavity through the mounting frame. The adjusting member adjusts the height of the pulley member by adjusting the mounting frame. The pulley members on both sides of the shell protrude outward to form convex portions. The arrangement of the convex portions increases the distance between the pulley and the shell, avoids the pulley from contacting the shell during rolling, and ensures the smoothness of the pulley rolling.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An adjustable pulley assembly for doors and windows includes a housing, a mounting frame, an adjusting member and a pulley member, a mounting cavity is provided in the housing, an opening is provided at the bottom of the mounting cavity, the mounting frame is provided in the mounting cavity, the end of the adjusting member passes through one end of the housing and is connected to the mounting frame, the pulley member is provided in the mounting cavity and is respectively connected to the mounting frame and the housing, the bottom of the pulley member protrudes out of the mounting cavity, the adjusting member controls the swing of the pulley member by adjusting the mounting frame, and the two sides of the housing corresponding to the pulley member protrude outward to form a convex portion. The utility model is provided by providing a housing, a mounting frame, an adjusting member and a pulley member, the mounting frame is installed in the mounting cavity of the housing, the pulley member is installed in the mounting cavity through the mounting frame, the adjusting member adjusts the height of the pulley member by adjusting the mounting frame, the two sides of the housing corresponding to the pulley member protrude outward to form a convex portion, the setting of the convex portion increases the distance between the pulley and the housing, avoids the pulley from contacting the housing during rolling, and ensures the smoothness of the pulley rolling.

[0008] Furthermore, the pulley member includes a pulley and a pulley frame, the pulley is rotatably connected to the rotating shaft 1, the two ends of the rotating shaft 1 are connected to the end 1 of the pulley frame, the end 2 of the pulley frame is rotatably connected to the mounting frame and the housing through the rotating shaft 2, and the end 3 of the pulley frame is connected to the mounting frame through the rotating shaft 3. The pulley frame is used to install the pulley, and when the mounting frame is adjusted by the adjusting member, the mounting frame drives the pulley frame and the pulley to swing and adjust, thereby adjusting the height of the pulley.

[0009] Furthermore, both sides of the mounting frame are provided with obliquely arranged oblong holes corresponding to the second rotating shaft, and both sides of the mounting frame are provided with slot holes corresponding to the pulley. The arrangement of the oblong holes facilitates the adjustment of the pulley frame, ensuring smooth adjustment of the pulley height, and the arrangement of the slot holes facilitates the adjustment of the pulley, avoiding contact between the pulley and the mounting frame, resulting in obstruction or jamming of the pulley, thereby ensuring smooth operation of the pulley.

[0010] Furthermore, the adjusting member includes an adjusting screw, a baffle and an adjusting block. The baffle is arranged at one end of the mounting cavity. The adjusting screw passes through one end of the housing and the baffle. The adjusting block is connected to one end of the mounting frame. The adjusting block is provided with a threaded hole. The adjusting block is threadedly connected to the end of the adjusting screw. By turning the adjusting screw to rotate, the adjusting block can move along the direction of the adjusting screw. At the same time, the mounting frame moves with the adjusting block. The pulley frame is driven to swing by the second and third rotating shafts, thereby adjusting the height of the pulley.

[0011] Furthermore, the baffle is provided with a U-shaped slot, which is matched with the adjusting screw, and a bending portion is provided at the bottom of one end of the housing corresponding to the baffle, and the bending portion is bent into the installation cavity and clamps the baffle in the installation cavity. The U-shaped slot is provided to facilitate the rotation of the adjusting screw, and the bending portion is provided to limit the baffle in the installation cavity.

[0012] Furthermore, one end of the mounting frame is provided with a connecting portion, the connecting portion is provided with a socket, and the adjusting block passes through two sockets. The adjusting screw passes through the two sockets, so that the adjusting screw is connected to the connecting portion, so that the adjusting block drives the mounting frame to move along the direction of the adjusting screw.

[0013] Furthermore, a fixing plate is extended from one end of the housing, and a fixing hole 1 is provided on the fixing plate, and a fixing hole 2 is provided on the other end of the housing. The fixing hole 1 and the fixing hole 2 are used to install a fixed pulley assembly.

[0014] Furthermore, it also includes an L-shaped support plate, and reinforcement ribs are evenly distributed at the angle of the L-shaped support plate. One end of the L-shaped support plate is against the bottom of the fixed plate, and the other end of the L-shaped support plate is fixed to the shell by a locking screw. The other end of the L-shaped support plate is provided with a notch, and the adjusting screw passes through the notch. The L-shaped support plate plays a role of supporting and reinforcing the fixed plate. The notch is convenient for the rotation of the adjusting screw, and the reinforcement ribs increase the structural strength of the L-shaped support plate.

[0015] Furthermore, a U-shaped clip is provided at the bottom of the shell, and connecting holes are provided on both sides of the U-shaped clip, and connecting screws are provided in the connecting holes. The connecting screws pass through the connecting holes and are tightened on both sides of the shell, and the bottom of the U-shaped clip is against the bottom of the shell, and the bottom surface of the U-shaped clip is higher than the bottom surface of the pulley. Both ends of the top of the U-shaped clip are provided with fixing parts, and the fixing parts are provided with fixing holes three. The U-shaped clip is fixed to the shell by connecting screws, and the U-shaped clip limits the mounting frame located in the mounting cavity, and the fixing part cooperates with the fixing hole three to fix the installation of the pulley assembly, increase the force points of the pulley assembly installation, make the fixed installation of the pulley assembly uniform, and improve the stability of the fixed installation of the pulley assembly. At the same time, the bottom surface of the U-shaped clip is lower than the bottom surface of the pulley, so that the U-shaped clip does not affect the normal use of the pulley assembly.

[0016] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0017] The utility model provides a shell, a mounting frame, an adjusting member and a pulley member. The mounting frame is installed in the mounting cavity of the shell, and the pulley member is installed in the mounting cavity through the mounting frame. The adjusting member adjusts the height of the pulley member by adjusting the mounting frame. The pulley members on both sides of the shell protrude outward to form convex parts. The setting of the convex parts increases the distance between the pulley and the shell, avoids the pulley from contacting the shell during rolling, and ensures the smoothness of the pulley rolling.

[0018] The utility model also includes an L-shaped support plate, and reinforcement ribs are evenly distributed at the angle of the L-shaped support plate. One end of the L-shaped support plate is against the bottom of the fixed plate, and the other end of the L-shaped support plate is fixed to the shell by a locking screw. The other end of the L-shaped support plate is provided with a notch, and the adjusting screw passes through the notch. The L-shaped support plate plays a role of supporting and reinforcing the fixed plate. The notch is convenient for the rotation of the adjusting screw, and the reinforcement ribs increase the structural strength of the L-shaped support plate.

[0019] In the utility model, a U-shaped clip is provided at the bottom of the shell, and connecting holes are provided on both sides of the U-shaped clip. Connecting screws are provided in the connecting holes. The connecting screws pass through the connecting holes and are tightened on both sides of the shell. The bottom of the U-shaped clip is against the bottom of the shell, and the bottom surface of the U-shaped clip is higher than the bottom surface of the pulley. Both ends of the top of the U-shaped clip are provided with fixing parts, and the fixing parts are provided with fixing holes three. The U-shaped clip is fixed to the shell by connecting screws, and the U-shaped clip limits the mounting frame located in the mounting cavity. At the same time, the fixing part cooperates with the fixing hole three to fix the installation of the pulley assembly, increase the force points of the pulley assembly installation, make the fixed installation of the pulley assembly uniform, and improve the stability of the fixed installation of the pulley assembly. At the same time, the bottom surface of the U-shaped clip is lower than the bottom surface of the pulley, so that the U-shaped clip does not affect the normal use of the pulley assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 This is a structural schematic diagram of an adjustable pulley assembly for doors and windows of the utility model;

[0022] Figure 2 for Figure 1 Explosion diagram of

[0023] Figure 3 It is a structural schematic diagram of the bottom of the shell in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the pulley member in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the mounting frame in the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the baffle in the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the L-shaped support plate in the utility model;

[0028] Figure 8 It is a schematic diagram of the structure of the U-shaped clip in the utility model.

[0029] In the figure, 1-shell; 2-mounting frame; 3-adjusting member; 4-pulley member; 5-mounting cavity; 6-opening; 7-convex portion; 8-pulley; 9-pulley frame; 10-rotating shaft one; 11-end one; 12-end two; 13-rotating shaft two; 14-end three; 15-rotating shaft three; 16-long round hole; 17-slot hole; 18-adjusting screw; 19-blocking piece; 20-adjusting block; 21-U-shaped slot; 22-bending portion; 23-connecting portion; 24-insertion hole; 25-fixing plate; 26-fixing hole one; 27-fixing hole two; 28-L-shaped support plate; 29-reinforcing rib; 30-slot; 31-U-shaped clamp; 32-connecting hole; 33-fixing portion; 34-fixing hole three. DETAILED DESCRIPTION

[0030] like Figures 1 to 8 As shown, an adjustable pulley assembly for doors and windows of the utility model comprises a shell 1, a mounting frame 2, an adjusting member 3 and a pulley member 4. A mounting cavity 5 is provided in the shell 1, and an opening 6 is provided at the bottom of the mounting cavity 5. The mounting frame 2 is arranged in the mounting cavity 5, and an end of the adjusting member 3 passes through one end of the shell 1 and is connected to the mounting frame 2. The pulley member 4 is arranged in the mounting cavity 5 and is respectively connected to the mounting frame 2 and the shell 1. The bottom of the pulley member 4 protrudes from the mounting cavity 5. The adjusting member 3 controls the swing of the pulley member 4 by adjusting the mounting frame 2. Both sides of the shell 1 protrude outward to form convex portions 7 corresponding to the pulley member 4.

[0031] The pulley member 4 includes a pulley 8 and a pulley frame 9. The pulley 8 is rotatably connected to a rotating shaft 10. Both ends of the rotating shaft 10 are connected to an end 11 of the pulley frame 9. An end 12 of the pulley frame 9 is rotatably connected to the mounting frame 2 and the housing 1 through a rotating shaft 13. An end 14 of the pulley frame 9 is connected to the mounting frame 2 through a rotating shaft 15. The pulley frame 9 is used to mount the pulley 8. When the mounting frame 2 is adjusted by the adjusting member 3, the mounting frame 2 drives the pulley frame 9 and the pulley 8 to swing and adjust, thereby adjusting the height of the pulley 8.

[0032] The two sides of the mounting frame 2 are provided with obliquely arranged oblong holes 16 corresponding to the rotating shaft 2 13, and the two sides of the mounting frame 2 are provided with slot holes 17 corresponding to the pulley 8. The setting of the oblong holes 16 facilitates the adjustment of the pulley frame 9, ensuring the smooth adjustment of the height of the pulley 8, and the setting of the slot holes 17 facilitates the adjustment of the pulley 8, avoiding the contact between the pulley 8 and the mounting frame 2, resulting in the pulley 8 being blocked or stuck, and ensuring the smooth operation of the pulley 8.

[0033] The adjusting member 3 includes an adjusting screw 18, a baffle 19 and an adjusting block 20. The baffle 19 is arranged at one end in the mounting cavity 5. The adjusting screw 18 passes through one end of the housing 1 and the baffle 19. The adjusting block 20 is connected to one end of the mounting frame 2. The adjusting block 20 is provided with a threaded hole. The adjusting block 20 is threadedly connected to the end of the adjusting screw 18. By turning the adjusting screw 18 to rotate, the adjusting block 20 can move along the direction of the adjusting screw 18. At the same time, the mounting frame 2 moves with the adjusting block 20, and the pulley frame 9 is driven to swing through the second rotating shaft 13 and the third rotating shaft 15, so as to adjust the height of the pulley 8.

[0034] The baffle 19 is provided with a U-shaped card slot 21, and the U-shaped card slot 21 is matched with the adjusting screw 18. The bottom of one end of the housing 1 is provided with a bending portion 22 corresponding to the baffle 19, and the bending portion 22 is bent into the installation cavity 5 to clamp the baffle 19 in the installation cavity 5. The setting of the U-shaped card slot 21 facilitates the rotation of the adjusting screw 18, and the setting of the bending portion 22 is used to limit the baffle 19 in the installation cavity 5.

[0035] One end of the mounting frame 2 is provided with a connecting portion 23, and the connecting portion 23 is provided with a plug hole 24, and the adjusting block 20 passes through the two plug holes 24. The adjusting screw 18 passes through the two plug holes 24, so that the adjusting screw 18 is connected to the connecting portion 23, so that the adjusting block 20 drives the mounting frame 2 to move along the direction of the adjusting screw 18.

[0036] A fixing plate 25 is extended from one end of the housing 1, and a fixing hole 1 26 is provided on the fixing plate 25. A fixing hole 27 is provided at the other end of the housing 1. The fixing hole 1 26 and the fixing hole 27 are used to install a fixed pulley assembly.

[0037] It also includes an L-shaped support plate 28, and reinforcement ribs 29 are evenly distributed at the angle of the L-shaped support plate 28. One end of the L-shaped support plate 28 is against the bottom of the fixed plate 25, and the other end of the L-shaped support plate 28 is fixed to the housing 1 by a locking screw. The other end of the L-shaped support plate 28 is provided with a notch 30, and the adjusting screw 18 passes through the notch 30. The L-shaped support plate 28 plays a role in supporting and reinforcing the fixed plate 25. The notch 30 is provided to facilitate the rotation of the adjusting screw 18, and the reinforcement ribs 29 increase the structural strength of the L-shaped support plate 28.

[0038] The bottom of the housing 1 is provided with a U-shaped clip 31, and both sides of the U-shaped clip are provided with connection holes 32, and connection screws are provided in the connection holes 32. The connection screws pass through the connection holes 32 and are tightened on both sides of the housing 1. The bottom of the U-shaped clip 31 is against the bottom of the housing 1, and the bottom surface of the U-shaped clip 31 is higher than the bottom surface of the pulley 8. Both ends of the top of the U-shaped clip 31 are provided with fixing parts 33, and the fixing parts 33 are provided with fixing holes 34. The U-shaped clip 31 is fixed to the housing 1 by connecting screws, and the U-shaped clip 31 limits the mounting frame 2 located in the mounting cavity 5. At the same time, the fixing part 33 cooperates with the fixing hole 34 to fix the installation of the pulley assembly, increase the force points of the pulley assembly installation, make the fixed installation of the pulley assembly uniform, and improve the stability of the fixed installation of the pulley assembly. At the same time, the bottom surface of the U-shaped clip 31 is lower than the bottom surface of the pulley 8, so that the U-shaped clip 31 does not affect the normal use of the pulley assembly.

[0039] The utility model is provided with a shell 1, a mounting frame 2, an adjusting member 3 and a pulley member 4. The mounting frame 2 is installed in a mounting cavity 5 of the shell 1, and the pulley member 4 is installed in the mounting cavity 5 through the mounting frame 2. The adjusting member 3 adjusts the height of the pulley member 4 by adjusting the mounting frame 2. The pulley member 4 is protruded outwardly on both sides of the shell 1 corresponding to the outward protrusions 7. The setting of the protrusion 7 increases the distance between the pulley 8 and the shell 1, avoids the pulley 8 from contacting the shell 1 during the rolling process, and ensures the smoothness of the rolling of the pulley 8.

[0040] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. An adjustable pulley assembly for doors and windows, characterized in that: The utility model comprises a shell, a mounting frame, an adjusting member and a pulley member, wherein a mounting cavity is arranged in the shell, an opening is arranged at the bottom of the mounting cavity, the mounting frame is arranged in the mounting cavity, an end of the adjusting member passes through one end of the shell and is connected with the mounting frame, the pulley member is arranged in the mounting cavity and is respectively connected with the mounting frame and the shell, the bottom of the pulley member protrudes from the mounting cavity, the adjusting member controls the swing of the pulley member by adjusting the mounting frame, and convex portions are formed on both sides of the shell corresponding to the outward protrusions of the pulley member.

2. The adjustable pulley assembly for doors and windows according to claim 1, characterized in that: The pulley member includes a pulley and a pulley frame, the pulley is rotatably connected to a rotating shaft 1, both ends of the rotating shaft 1 are connected to an end 1 of the pulley frame, an end 2 of the pulley frame is rotatably connected to the mounting frame and the housing through a rotating shaft 2, and an end 3 of the pulley frame is connected to the mounting frame through a rotating shaft 3.

3. The adjustable pulley assembly for doors and windows according to claim 2, characterized in that: Both sides of the mounting frame are provided with obliquely arranged long circular holes corresponding to the second rotating shaft, and both sides of the mounting frame are provided with slot holes corresponding to the pulley.

4. The adjustable pulley assembly for doors and windows according to claim 1, characterized in that: The adjusting member includes an adjusting screw, a baffle and an adjusting block, wherein the baffle is arranged at one end in the mounting cavity, the adjusting screw passes through one end of the shell and the baffle, the adjusting block is connected to one end of the mounting frame, the adjusting block is provided with a threaded hole, and the adjusting block is threadedly connected to the end of the adjusting screw.

5. The adjustable pulley assembly for doors and windows according to claim 4, characterized in that: The baffle is provided with a U-shaped slot, and the U-shaped slot is matched with the adjusting screw. The bottom of one end of the shell is provided with a bending portion corresponding to the baffle, and the bending portion is bent into the installation cavity and then clamps the baffle in the installation cavity.

6. The adjustable pulley assembly for doors and windows according to claim 4, characterized in that: One end of the mounting frame is provided with a connecting portion, the connecting portion is provided with a plug hole, and the adjusting block passes through two of the plug holes.

7. The adjustable pulley assembly for doors and windows according to claim 4, characterized in that: A fixing plate is extended from one end of the shell, and a fixing hole 1 is provided on the fixing plate. A fixing hole 2 is provided on the other end of the shell.

8. The adjustable pulley assembly for doors and windows according to claim 7, characterized in that: It also includes an L-shaped support plate, with reinforcing ribs evenly distributed at the angle of the L-shaped support plate, one end of the L-shaped support plate rests on the bottom of the fixed plate, the other end of the L-shaped support plate is fixed to the shell by a locking screw, and the other end of the L-shaped support plate is provided with a notch, and the adjusting screw passes through the notch.

9. The adjustable pulley assembly for doors and windows according to claim 1, characterized in that: A U-shaped clip is provided at the bottom of the shell, connecting holes are provided on both sides of the U-shaped clip, connecting screws are provided in the connecting holes, and the connecting screws pass through the connecting holes and are tightened on both sides of the shell, the bottom of the U-shaped clip is against the bottom of the shell, the bottom surface of the U-shaped clip is higher than the bottom surface of the pulley, and fixing parts are provided at both ends of the top of the U-shaped clip, and the fixing parts are provided with fixing holes three.

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