Door and window side edge adjusting pulley

Abstract

The utility model discloses a door and window side edge adjusting pulley, it includes door and window frame, the lower both sides symmetry of this door and window frame are installed with pulley assembly, this pulley assembly includes corner ware, adjusting part and a plurality of movable pulleys, a plurality of movable pulleys are movable connection in the lower part of corner ware respectively, the rear part of corner ware is equipped with the adjusting installation position, and the adjusting part is movable connection in the adjusting installation position. The door and window side edge adjusting pulley of the utility model is through the rotation of adjusting screw piece, and adjusting screw rod will drive adjusting part to slide in adjusting installation position along the longitudinal direction, and then realizes the height accurate adjustment of whole pulley assembly, adapts track height change or ground inequality installation error, effectively promotes the stability of door and window operation, the adaptability of installation and the maintainability of structure, and is convenient for user adjustment.

Description

Technical Field

[0001] This utility model belongs to the technical field of door and window accessories, specifically relating to a door and window side adjustment pulley. Background Technology

[0002] With the development of door and window manufacturing and installation technology, various sliding doors and windows are widely used in residential, commercial, and industrial buildings. Among them, the pulley, as the core component of the door and window sliding mechanism, directly affects the service life, smoothness of sliding, and ease of installation of the doors and windows. In existing technology, pulley assemblies are generally installed at the bottom of the door or window sash to support the weight of the door or window and guide it to slide along the guide rail.

[0003] Traditional pulley assemblies are typically separate from the adjustment mechanism, requiring an adjusting screw for fine-tuning the pulley's position when adjusting the height. In common designs, this adjusting screw is located at the top of the pulley assembly, while the pulley itself is concealed within an inner cavity at the bottom of the door or window. Due to the limited space, users must use a long, thin tool inserted through the narrow gap at the bottom of the door or window to perform the adjustment. This not only makes the adjustment process complex and difficult but also results in inaccurate adjustments and limited adjustment range, severely impacting the installation efficiency and user experience of doors and windows.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a door and window side adjustment pulley to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a door and window side adjustment pulley, which includes a door and window frame, and pulley assemblies are symmetrically installed on the lower two sides of the door and window frame. The pulley assembly includes a corner mechanism, an adjustment component, and several movable pulleys. The several movable pulleys are movably connected to the lower part of the corner mechanism. An adjustment mounting position is provided at the rear of the corner mechanism, and the adjustment component is movably connected to the adjustment mounting position.

[0007] Furthermore, the upper end of the adjustment mounting position is provided with an adjustment through-hole, in which an adjustment screw is engaged. The middle part of the adjustment component is provided with an adjustment through-hole, and the lower end of the adjustment screw is provided with an adjustment screw rod. The adjustment screw rod is threadedly connected to the adjustment through-hole. By rotating the adjustment screw, the adjustment screw rod at its lower end is driven to rotate, thereby causing the adjustment component to move and adjust along the adjustment mounting position.

[0008] Furthermore, the two sides of the adjustment mounting position are symmetrically recessed with adjustment grooves, and the front two sides of the adjustment component are provided with adjustment sliders, which are respectively embedded in the corresponding adjustment grooves and form a sliding fit connection with them.

[0009] Furthermore, the lower part of the corner bracket is connected to a mounting bracket, and the front two sides of the mounting bracket are symmetrically provided with first connecting holes. The lower front part of the corner bracket is provided with a first connecting groove. The two first connecting holes are correspondingly arranged on both sides of the first connecting groove, and are connected and fixed to the first connecting groove by fasteners passing through the first connecting holes.

[0010] Furthermore, the mounting bracket has symmetrical second connecting holes on its rear two sides, and the adjustment component has a second connecting groove on its side. The two second connecting holes are correspondingly arranged on both sides of the second connecting groove, and are connected and fixed to the second connecting groove by fasteners passing through the second connecting holes.

[0011] Furthermore, several movable pulleys are respectively arranged inside the mounting bracket. A first pulley through hole is opened in the middle of the movable pulley, and a second pulley through hole is opened on both sides of the mounting bracket. The two second pulley through holes are symmetrically arranged on both sides of the first pulley through hole, and are hinged to the first pulley through hole by fasteners passing through the second pulley through hole.

[0012] Furthermore, the corner bracket has a first mounting hole at its lower front and a second mounting hole at its upper part. The first mounting hole and the second mounting hole are respectively connected and fixed to the door and window frame by fasteners.

[0013] The present invention has the following advantages: A pulley assembly is symmetrically installed on both sides of the lower part of the door and window frame. The pulley assembly includes a corner mechanism, an adjusting component, and several movable pulleys. Each movable pulley is movably connected to the lower part of the corner mechanism. An adjusting mounting position is provided at the rear of the corner mechanism. The adjusting component is movably connected to this adjusting mounting position. An adjusting through-hole is provided at the upper end of the adjusting mounting position, and an adjusting screw is engaged in this through-hole. An adjusting hole is provided in the middle of the adjusting component, and an adjusting screw is provided at the lower end of the adjusting screw. The adjusting screw and the adjusting hole are threadedly connected. By rotating the adjusting screw, the adjusting component slides longitudinally within the adjusting mounting position, thereby achieving precise height adjustment of the entire pulley assembly. This adapts to changes in track height or uneven ground installation errors, effectively improving the stability of door and window operation, installation adaptability, and structural maintainability, and also facilitating user adjustment. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0015] Fig. 2 This is a three-dimensional structural diagram of the pulley assembly of this utility model.

[0016] Fig. 3 This is an exploded view of the pulley assembly of this utility model.

[0017] Fig. 4 This is an exploded structural diagram of the corner mechanism, adjusting component, and adjusting screw of this utility model.

[0018] Reference numerals: Door and window frame 10; Pulley assembly 20; Corner unit 21; Adjusting component 22; Movable pulley 23; Adjusting mounting position 211; Adjusting through position 212; Adjusting screw 24; Adjusting through hole 221; Adjusting screw 241; Adjusting slide 213; Adjusting slider 222; Mounting bracket 25; First connecting through hole 251; First connecting through groove 214; Second connecting through hole 252; Second connecting through groove 223; First pulley through hole 231; Second pulley through hole 253; First mounting through hole 215; Second mounting through hole 216. Detailed Implementation

[0019] like Figs. 1 to 4 As shown, a door and window side adjustment pulley includes a door and window frame 10, on which pulley assemblies 20 are symmetrically installed on the lower two sides.

[0020] In practical implementation, the pulley assembly 20 includes a corner bracket 21, an adjusting component 22, and several movable pulleys 23. The movable pulleys 23 are movably connected to the lower part of the corner bracket 21. The rear part of the corner bracket 21 is provided with an adjusting mounting position 211. The adjusting component 22 is movably connected to the adjusting mounting position 211. The upper end of the adjusting mounting position 211 is provided with an adjusting through-hole 212. An adjusting screw 24 is engaged in the adjusting through-hole 222. The middle part of the adjusting component 22 is provided with an adjusting screw 241. The adjusting screw 241 is threadedly connected to the adjusting through-hole 221. By rotating the adjusting screw 24, the adjusting screw 241 at its lower end is rotated, thereby causing the adjusting component 22 to move up and down along the adjusting mounting position 211. In use, the user can rotate the adjusting screw 24, causing the adjusting screw 241 to rotate relative to the adjusting through hole 221, thereby driving the entire adjusting component 22 to rise and fall. Since the adjusting component 22 and the corner mechanism 21 are linked, the corner mechanism 21 is also raised and lowered as a whole, thus achieving precise adjustment of the height of the pulley assembly 20. This adjustment structure effectively compensates for uneven ground, track wear, or assembly errors of the doors and windows themselves, improving the installation adaptability and service life of the doors and windows.

[0021] In practical implementation, the adjustment mounting position 211 has symmetrically recessed adjustment grooves 213 on both sides, and the front two sides of the adjustment component 22 have opposite adjustment sliders 222. The adjustment sliders 222 are respectively embedded in the corresponding adjustment grooves 213 and form a sliding engagement connection with them. Through the above structural arrangement, the adjustment component 22 can slide up and down along the groove direction in the adjustment mounting position 211, thereby achieving smooth guidance, avoiding shaking or deviation during the adjustment process, and further improving the stability and reliability of the adjustment.

[0022] In practical implementation, the lower part of the corner bracket 21 is connected to a mounting bracket 25. The mounting bracket 25 has symmetrically arranged first connecting holes 251 on its front two sides, and a first connecting groove 214 on the lower front part of the corner bracket 21. Two first connecting holes 251 are correspondingly arranged on both sides of the first connecting groove 214, and are connected and fixed to the first connecting groove 214 by fasteners passing through the first connecting holes 251, thus achieving a reliable connection and fixation between the mounting bracket 25 and the corner bracket 21, ensuring its overall rigidity and balanced force distribution. The rear two sides of the mounting bracket 25 have symmetrically arranged second connecting holes 252, and the side of the adjusting component 22 has a second connecting groove 223. Two second connecting holes 252 are correspondingly arranged on both sides of the second connecting groove 223, and are connected and fixed to the second connecting groove 223 by fasteners passing through the second connecting holes 252, thus ensuring that the adjusting component 22 is securely connected to the rear part of the mounting bracket 25.

[0023] In practical implementation, several movable pulleys 23 are respectively arranged inside the mounting bracket 25. A first pulley through hole 231 is opened in the middle of the movable pulley 23, and a second pulley through hole 253 is opened on both sides of the mounting bracket 25. The two second pulley through holes 253 are symmetrically arranged on both sides of the first pulley through hole 231, and are hinged to the first pulley through hole 231 by fasteners passing through the second pulley through hole 253. Thus, the movable pulley 23 can be movably connected to the inside of the mounting bracket 25. This connection method not only ensures that the pulley can rotate freely, but also allows the pulley to swing relative to the mounting bracket 25 in the vertical direction or within a small angle range, further improving the adaptability and anti-jamming ability of the pulley assembly under complex track conditions.

[0024] In practical implementation, the corner bracket 21 has a first mounting hole 215 at its lower front and a second mounting hole 216 at its upper part. The first mounting hole 215 and the second mounting hole 216 are respectively connected and fixed to the door and window frame 10 by fasteners, thereby realizing multi-point positioning installation of the corner bracket.

[0025] In summary, pulley assemblies 20 are symmetrically installed on the lower sides of the door and window frame 10. Each pulley assembly 20 includes a corner bracket 21, an adjusting component 22, and several movable pulleys 23. The movable pulleys 23 are movably connected to the lower part of the corner bracket 21. An adjusting mounting position 211 is provided at the rear of the corner bracket 21. The adjusting component 22 is movably connected to the adjusting mounting position 211. An adjusting through-hole 212 is provided at the upper end of the adjusting mounting position 211, and an adjusting screw 24 is engaged in the adjusting through-hole 212. The adjusting component 22... An adjustment hole 221 is provided in the middle of the adjustment screw 24, and an adjustment screw 241 is provided at the lower end of the adjustment screw 24. The adjustment screw 241 is threadedly connected to the adjustment hole 221. The adjustment pulley on the side of the door and window of this utility model can achieve precise height adjustment of the entire pulley assembly by rotating the adjustment screw, which will drive the adjustment component to slide longitudinally in the adjustment installation position. This adapts to changes in track height or uneven ground installation errors, effectively improves the stability of door and window operation, installation adaptability and structural maintainability, and facilitates user adjustment.

Claims

1. A side-adjusting pulley for doors and windows, characterized in that, It includes a door and window frame (10), and pulley assemblies (20) are symmetrically installed on the lower two sides of the door and window frame (10). The pulley assembly (20) includes a corner bracket (21), an adjusting component (22) and several movable pulleys (23). Several movable pulleys (23) are respectively movably connected to the lower part of the corner bracket (21). The rear part of the corner bracket (21) is provided with an adjusting mounting position (211), and the adjusting component (22) is movably connected in the adjusting mounting position (211).

2. The door and window side adjusting pulley according to claim 1, characterized in that, The upper end of the adjustment mounting position (211) is provided with an adjustment through position (212), and an adjustment screw (24) is installed in the adjustment through position (212). The middle part of the adjustment component (22) is provided with an adjustment through hole (221). The lower end of the adjustment screw (24) is provided with an adjustment screw (241). The adjustment screw (241) is threadedly connected to the adjustment through hole (221). By rotating the adjustment screw (24), the adjustment screw (241) at its lower end is driven to rotate, thereby causing the adjustment component (22) to move and adjust along the adjustment mounting position (211).

3. The door and window side adjusting pulley according to claim 1, characterized in that, The adjustment mounting position (211) has symmetrically recessed adjustment grooves (213) on both sides. The front sides of the adjustment component (22) are provided with adjustment sliders (222). The adjustment sliders (222) are respectively embedded in the corresponding adjustment grooves (213) and form a sliding fit connection with them.

4. The door and window side adjusting pulley according to claim 1, characterized in that, The lower part of the corner bracket (21) is connected to a mounting bracket (25). The front two sides of the mounting bracket (25) are symmetrically provided with first connecting holes (251). The lower front part of the corner bracket (21) is provided with a first connecting groove (214). The two first connecting holes (251) are respectively arranged on both sides of the first connecting groove (214) and are connected and fixed to the first connecting groove (214) by fasteners passing through the first connecting holes (251).

5. The door and window side adjusting pulley according to claim 4, characterized in that, The mounting bracket (25) has symmetrical second connecting holes (252) on its rear two sides, and the adjusting component (22) has a second connecting groove (223) on its side. The two second connecting holes (252) are respectively arranged on both sides of the second connecting groove (223), and are connected and fixed to the second connecting groove (223) by fasteners passing through the second connecting holes (252).

6. The door and window side adjusting pulley according to claim 5, characterized in that, Several movable pulleys (23) are respectively arranged inside the mounting bracket (25). A first pulley through hole (231) is opened in the middle of the movable pulley (23), and a second pulley through hole (253) is opened on both sides of the mounting bracket (25). The two second pulley through holes (253) are symmetrically arranged on both sides of the first pulley through hole (231), and are hinged to the first pulley through hole (231) by fasteners passing through the second pulley through hole (253).

7. The door and window side adjusting pulley according to claim 1, characterized in that, The corner bracket (21) has a first mounting hole (215) at its lower front and a second mounting hole (216) at its upper part. The first mounting hole (215) and the second mounting hole (216) are respectively connected and fixed to the door and window frame (10) by fasteners.

Images