Door and window pulley self-locking structure

Abstract

The utility model provides a door and window pulley self-locking structure, and belongs to the technical field of door and window pulleys. The door and window pulley self-locking structure comprises a frame, a plurality of pulleys are rotationally connected to the bottom end of the inner side of the frame and distributed at equal intervals, a self-locking mechanism is arranged on the inner side of the frame and comprises a lifting plate, a brake block is installed at the bottom end of the lifting plate, and telescopic rods are installed on the two sides of the top end of the lifting plate. A fixing plate is installed at the top end of the telescopic rod, one side of the fixing plate is fixedly connected with the top end of the inner side of the frame, the telescopic rod is sleeved with a first spring, the top end of the first spring is connected with the bottom end of the fixing plate, the bottom end of the first spring is connected with the top end of a lifting plate, and an unlocking mechanism is installed at the top end of the lifting plate and comprises a vertical frame. According to the sliding wheel self-locking device, the self-locking function of the sliding wheel can be effectively achieved, doors and windows are prevented from moving accidentally, and the sliding wheel self-locking device has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window pulleys, and in particular to a door and window pulley self-locking structure. Background Art

[0002] Doors and windows are divided into enclosing components or partition components according to their location. They have different design requirements and must have functions such as thermal insulation, heat insulation, sound insulation, waterproofing, and fire prevention. Most doors and windows are equipped with pulleys at the bottom so that they can slide inside the set track, making it convenient for users to open or close the doors and windows.

[0003] Based on the above, the inventors have found the following problems: the existing door and window pulleys do not have a self-locking structure when in use. When the doors and windows are subjected to external vibrations, the pulleys may move with the doors and windows, affecting user use.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a door and window pulley self-locking structure is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a door and window pulley self-locking structure.

[0006] The utility model is achieved in this way:

[0007] A door and window pulley self-locking structure comprises a frame, a plurality of pulleys are rotatably connected to the inner bottom end of the frame, the plurality of pulleys are evenly spaced, a self-locking mechanism is arranged on the inner side of the frame, the self-locking mechanism comprises a lifting plate, a brake block is installed at the bottom end of the lifting plate, telescopic rods are installed on both sides of the top end of the lifting plate, a fixed plate is installed at the top end of the telescopic rod, one side of the fixed plate is fixedly connected to the inner top end of the frame, a first spring is sleeved on the outer side of the telescopic rod, the top end of the first spring is connected to the bottom end of the fixed plate, the bottom end of the first spring is connected to the top end of the lifting plate, and an unlocking mechanism is installed on the top end of the lifting plate.

[0008] Furthermore, the unlocking mechanism comprises a stand, the inner top of the stand is inclined, an inclined block is arranged inside the stand, and the inner top of the stand fits with the top of the inclined block.

[0009] Furthermore, a pull rod is installed on one side of the inclined block, one end of the pull rod passes through one side of the frame, and the pull rod and the frame are slidably connected.

[0010] The beneficial effect of adopting the above further scheme is that by installing a pull rod on one side of the inclined block, the vertical frame can drive the brake block to rise by pulling the pull rod, thereby unlocking the pulley, and the movement stability of the pull rod is improved by the sliding connection between the pull rod and the frame.

[0011] Furthermore, one end of the pull rod is rotatably connected to a rotating shaft, and an adjusting wrench is sleeved on the outer side of the rotating shaft.

[0012] The beneficial effect of adopting the above further solution is that an adjustment wrench is sleeved on the outer side of the rotating shaft, which makes it convenient for the user to pull the pull rod.

[0013] Furthermore, a limit plate is installed at the top end of the pull rod, and one side of the limit plate is in contact with the stand at a side close to the adjusting wrench.

[0014] The beneficial effect of adopting the above further solution is that, by installing a limit plate on the top end of the pull rod, movement limitation when the pull rod is reset is achieved.

[0015] Furthermore, a second spring is installed on one side of the limiting plate, and one end of the second spring is connected to the inner side of the frame.

[0016] The beneficial effect of adopting the above further solution is that, by installing a second spring on one side of the limit plate, the pull rod can be automatically reset.

[0017] Furthermore, a plurality of grooves are formed at the bottom end of the brake block, and the inner sides of the grooves are in contact with the outer sides of the pulley.

[0018] The beneficial effect of adopting the above further solution is that, by opening a plurality of grooves at the bottom end of the brake block, the contact range between the brake block and the pulley is increased, thereby enhancing the braking effect.

[0019] Furthermore, mounting plates are installed at the tops of both ends of the frame, and a pair of mounting holes are opened at the tops of the mounting plates.

[0020] The beneficial effects of the utility model are as follows: the utility model obtains a door and window pulley self-locking structure through the above design, and a plurality of pulleys are rotatably connected to the inner bottom end of the frame, which is convenient for the movement of doors and windows, and a brake block is installed at the bottom end of the lifting plate to realize the self-locking of the pulley brake to prevent the doors and windows from sliding accidentally, and telescopic rods are installed on both sides of the top of the lifting plate to improve the lifting stability of the lifting plate, and a first spring is sleeved on the outer side of the telescopic rod to realize that the lifting and lowering cannot be automatically pressed down, so that the brake block automatically contacts the pulley, and the inner top end of the vertical frame is fitted with the top end of the inclined block to realize the movement of the inclined block to drive the height of the vertical frame to be adjusted, and a pull rod is installed on one side of the inclined block to realize pulling The pull rod can make the vertical frame drive the brake block to rise, so as to unlock the pulley. The pull rod and the frame are slidably connected to improve the movement stability of the pull rod. An adjusting wrench is installed on the outside of the rotating shaft, which is convenient for users to pull the pull rod. A limit plate is installed on the top of the pull rod to realize the movement limit when the pull rod is reset. A second spring is installed on one side of the limit plate to realize automatic reset of the pull rod. A number of grooves are opened at the bottom end of the brake block to increase the contact range between the brake block and the pulley and increase the braking effect. Mounting plates are installed on the top of both ends of the frame to facilitate the installation of the product on doors and windows. The utility model can effectively realize the self-locking function of the pulley to prevent accidental movement of doors and windows, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of a door and window pulley self-locking structure provided by the utility model;

[0023] Figure 2 This is a second bottom-up stereoscopic structural schematic diagram of a door and window pulley self-locking structure provided by the utility model;

[0024] Figure 3 The third exploded structural diagram of a door and window pulley self-locking structure provided by the utility model;

[0025] Figure 4 This is one of the frame cross-sectional stereograms of a door and window pulley self-locking structure provided by the utility model;

[0026] Figure 5 This is a second perspective view of a frame section of a door and window pulley self-locking structure provided by the utility model.

[0027] In the figure: 100, frame; 101, pulley; 102, mounting plate; 103, self-locking mechanism; 10301, lifting plate; 10302, telescopic rod; 10303, fixing plate; 10304, first spring; 10305, brake block; 104, unlocking mechanism; 10401, stand; 10402, inclined block; 10403, pull rod; 10404, rotating shaft; 10405, adjusting wrench; 10406, limit plate; 10407, second spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] The utility model provides the following technical solutions: Figure 1-Figure 5As shown, a door and window pulley self-locking structure includes a frame 100, a plurality of pulleys 101 are rotatably connected to the inner bottom end of the frame 100, and the plurality of pulleys 101 are evenly spaced. A self-locking mechanism 103 is provided on the inner side of the frame 100, and the self-locking mechanism 103 includes a lifting plate 10301, a brake block 10305 is installed at the bottom end of the lifting plate 10301, telescopic rods 10302 are installed on both sides of the top of the lifting plate 10301, a fixed plate 10303 is installed on the top of the telescopic rod 10302, one side of the fixed plate 10303 is fixedly connected to the inner top end of the frame 100, a first spring 10304 is sleeved on the outer side of the telescopic rod 10302, and the top of the first spring 10304 and the bottom of the fixed plate 10303 are connected. The bottom end of the first spring 10304 is connected to the top of the lifting plate 10301, and an unlocking mechanism 104 is installed on the top of the lifting plate 10301. A plurality of pulleys 101 are rotatably connected through the inner bottom end of the frame 100 to facilitate the movement of doors and windows. A brake block 10305 is installed at the bottom end of the lifting plate 10301 to achieve self-locking of the pulley 101 to prevent accidental sliding of the doors and windows. Telescopic rods 10302 are installed on both sides of the top of the lifting plate 10301 to improve the lifting stability of the lifting plate 10301. A first spring 10304 is sleeved on the outer side of the telescopic rod 10302 to achieve automatic downward pressure of the lifting plate 10301, thereby achieving automatic contact between the brake block 10305 and the pulley 101.

[0032] Embodiment 2

[0033] Reference Figure 1-Figure 5 As shown, the unlocking mechanism 104 includes a stand 10401, the top of the interior of the stand 10401 is inclined, an inclined block 10402 is arranged inside the stand 10401, the top of the interior of the stand 10401 and the top of the inclined block 10402 fit together, a pull rod 10403 is installed on one side of the inclined block 10402, one end of the pull rod 10403 passes through one side of the frame 100, the pull rod 10403 and the frame 100 are slidably connected, one end of the pull rod 10403 is rotatably connected to a rotating shaft 10404, an outer side of the rotating shaft 10404 is provided with an adjusting wrench 10405, and the rotating shaft 10404 is adjusted by the stand 10 The inner top of 401 fits with the top of the inclined block 10402, so that the inclined block 10402 can be moved to drive the height of the stand 10401 to be adjusted. A pull rod 10403 is installed on one side of the inclined block 10402, so that the stand 10401 can drive the brake block 10305 to rise by pulling the pull rod 10403, thereby unlocking the pulley 101. The pull rod 10403 and the frame 100 are slidably connected to improve the movement stability of the pull rod 10403. An adjusting wrench 10405 is installed on the outer side of the rotating shaft 10404 to facilitate users to pull the pull rod 10403.

[0034] Embodiment 3

[0035] Reference Figure 1-Figure 5 As shown, a limit plate 10406 ​​is installed at the top of the pull rod 10403, one side of the limit plate 10406 ​​is in contact with the stand 10401 at the side close to the adjusting wrench 10405, a second spring 10407 is installed on one side of the limit plate 10406, one end of the second spring 10407 is connected to the inner side of the frame 100, a plurality of grooves are provided at the bottom end of the brake block 10305, the inner side of the grooves is in contact with the outer side of the pulley 101, and mounting plates 102 are installed at the top of both ends of the frame 100, and the top of the mounting plate 102 is A pair of mounting holes are opened at the end, and a limit plate 10406 ​​is installed through the top of the pull rod 10403 to realize the movement limit of the pull rod 10403 when it is reset. A second spring 10407 is installed on one side of the limit plate 10406 ​​to realize automatic reset of the pull rod 10403. A plurality of grooves are opened at the bottom end of the brake block 10305 to increase the contact range between the brake block 10305 and the pulley 101 and increase the braking effect. Mounting plates 102 are installed on the top of both ends of the frame 100 to facilitate the installation of the product on doors and windows.

[0036] Specifically, the working principle of the door and window pulley self-locking structure is as follows: when in use, a plurality of pulleys 101 are rotatably connected to the inner bottom end of the frame 100 to facilitate the movement of the doors and windows; a brake block 10305 is installed at the bottom end of the lifting plate 10301 to achieve self-locking of the pulley 101 to prevent the doors and windows from accidentally sliding; telescopic rods 10302 are installed on both sides of the top of the lifting plate 10301 to improve the lifting stability of the lifting plate 10301; a first spring 10304 is sleeved on the outer side of the telescopic rod 10302 to achieve automatic downward pressure of the lifting rod 10301, so that the brake block 10305 automatically contacts the pulley 101; the inner top of the vertical frame 10401 and the top of the inclined block 10402 are fitted together to achieve the movement of the inclined block 10402 to drive the height of the vertical frame 10401 to be adjusted; a pull rod 10403 is installed on one side of the inclined block 10402 to achieve the vertical frame 10401 by pulling the pull rod 10403 10401 drives the brake block 10305 to rise, thereby unlocking the pulley 101. The pull rod 10403 and the frame 100 are slidably connected to improve the movement stability of the pull rod 10403. An adjusting wrench 10405 is mounted on the outer side of the rotating shaft 10404, which is convenient for users to pull the pull rod 10403. A limit plate 10406 ​​is installed on the top of the pull rod 10403 to achieve movement limit when the pull rod 10403 is reset. A second spring 10407 is installed on one side of the limit plate 10406 ​​to achieve automatic reset of the pull rod 10403. A plurality of grooves are provided at the bottom end of the brake block 10305 to increase the contact range of the brake block 10305 and the pulley 101 and increase the braking effect. Mounting plates 102 are installed on the top of both ends of the frame 100 to facilitate the installation of the product on doors and windows. The utility model can effectively realize the self-locking function of the pulley to prevent the doors and windows from moving accidentally, and has high practical value.

[0037] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A self-locking structure for door and window pulleys. It is characterized in that The invention comprises a frame (100), wherein the inner bottom end of the frame (100) is rotatably connected to a plurality of pulleys (101), wherein the pulleys (101) are evenly spaced, and a self-locking mechanism (103) is provided on the inner side of the frame (100), wherein the self-locking mechanism (103) comprises a lifting plate (10301), wherein a brake block (10305) is installed at the bottom end of the lifting plate (10301), and telescopic rods (10302) are installed on both sides of the top end of the lifting plate (10301), wherein the telescopic rods (10302) are installed on the top end of the lifting plate (10301), and the telescopic rods (10302) are installed on the bottom end of the lifting plate (10301). 02) is installed with a fixing plate (10303), one side of the fixing plate (10303) is fixedly connected to the inner top of the frame (100), the outer side of the telescopic rod (10302) is sleeved with a first spring (10304), the top of the first spring (10304) is connected to the bottom of the fixing plate (10303), the bottom of the first spring (10304) is connected to the top of the lifting plate (10301), and the top of the lifting plate (10301) is installed with an unlocking mechanism (104).

2. A door and window pulley self-locking structure according to claim 1, It is characterized in that The unlocking mechanism (104) comprises a stand (10401), the inner top of the stand (10401) is inclined, an inclined block (10402) is arranged inside the stand (10401), and the inner top of the stand (10401) and the top of the inclined block (10402) fit together.

3. A door and window pulley self-locking structure according to claim 2, It is characterized in that A pull rod (10403) is installed on one side of the inclined block (10402), one end of the pull rod (10403) passes through one side of the frame (100), and the pull rod (10403) and the frame (100) are slidably connected.

4. A door and window pulley self-locking structure according to claim 3, It is characterized in that One end of the pull rod (10403) is rotatably connected to a rotating shaft (10404), and an adjusting wrench (10405) is sleeved on the outer side of the rotating shaft (10404).

5. A door and window pulley self-locking structure according to claim 4, It is characterized in that A limit plate (10406) is installed at the top end of the pull rod (10403), and one side of the limit plate (10406) is in contact with the stand (10401) at a side close to the adjustment wrench (10405).

6. A door and window pulley self-locking structure according to claim 5, It is characterized in that A second spring (10407) is installed on one side of the limiting plate (10406), and one end of the second spring (10407) is connected to the inner side of the frame (100).

7. A door and window pulley self-locking structure according to claim 1, It is characterized in that A plurality of grooves are provided at the bottom end of the brake block (10305), and the inner sides of the grooves are in contact with the outer sides of the pulley (101).

8. A door and window pulley self-locking structure according to claim 1, It is characterized in that Mounting plates (102) are installed at the tops of both ends of the frame (100), and a pair of mounting holes are opened at the top of the mounting plates (102).

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