CN220378085U

CN220378085U - Lower pulley for limiting and installing doors and windows

Info

Publication number: CN220378085U
Application number: CN202321668135.6U
Authority: CN
Inventors: 梁国志
Original assignee: Xinxing Junrui Hardware Co ltd
Current assignee: Xinxing Junrui Hardware Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2024-01-23
Anticipated expiration: 2033-06-29

Abstract

The utility model relates to the technical field of door and window accessory installation, in particular to a lower pulley for door and window limiting installation, which comprises an outer shell, an inner shell and a door and window section bar, wherein a plurality of pulley blocks are rotatably arranged on the inner side of the inner shell through a plurality of pin shafts, the number of pulleys of each pulley block is two, the outer shell is clamped on the inner side of the door and window section bar through a 90-degree limiting assembly, the inner shell is connected on the inner side of the outer shell through an adjusting assembly, and gaps are reserved between the bottoms of the pulley blocks and the bottoms of the inner shell, and the lower pulley disclosed by the utility model has the beneficial effects that: can prevent effectively that the movable plate from rising the door and window section bar from inside because of the too big protruding trace that leads to of power during installation, can also carry out effective location to the movable plate after the rotation, prevent that the movable plate from being rotated at the in-process atress that door and window removed to make the movable plate can stably block in the door and window section bar, make this lower pulley can stably install on the door and window section bar.

Description

Lower pulley for limiting and installing doors and windows

Technical Field

The utility model relates to the technical field of door and window accessory installation, in particular to a lower pulley for limiting and installing doors and windows.

Background

The pulley is a commonly used hardware fitting in metal doors and windows, and is divided into an upper pulley and a lower pulley, wherein the upper pulley is arranged on an upper rail of the doors and windows, the lower pulley is arranged on a lower rail of the doors and windows, the pulley has the function of enabling the doors and windows to move smoothly in the sliding and sliding process, the pulley is attractive and attractive, the common lower pulley in the market is arranged at present, screws are directly arranged on the inner wall of an aluminum product, the screws are screwed tightly, the aluminum product is easy to damage, and screw installation positions are reserved when the aluminum product is opened, so that the production cost is high.

Through retrieving, the pulley that bulletin number is CN 214886358U's one kind adopts the rotary piece installation fixed, has the pulley assembly, the pulley assembly is concave form structure, and the inboard terminal surface at its both ends has the rotary piece through countersunk movable rivet activity hinge, and this rotary piece is square form structure, and its a set of diagonal angle adopts the chamfer structure respectively, the both ends of rotary piece are located the fillet department respectively and follow the edge of rotary piece and increase gradually, the pulley assembly corresponds the rotary piece and has seted up the movable groove, just the pulley assembly activity is inlayed and is located the section bar, and this section bar is concave form structure, and the draw-in groove has been seted up in its inboard terminal surface extension to locate the draw-in groove through rotary piece edge cooperation card and make the fixed setting of pulley assembly.

Said utility model patent can implement pulley assembly fixation by means of rotating rotary piece and clamping fit of section bar, and its installation is convenient and quick, and can greatly raise working efficiency, and its structure is simple and reasonable, and its processing is convenient, but its following obvious defects still have to be improved:

1. the movable grooves are symmetrically arranged, the rotating piece rotates for 360 degrees, when the movable grooves are installed, the movable grooves are forced to lift up the surface of the aluminum material from the inside, the aluminum material is damaged, and the appearance is unsightly;

2. the side of the inner and outer shells is provided with a waist-shaped hole which is inclined, namely, the machining procedure of the inclined hole site is still needed.

Therefore, the utility model of the lower pulley for limiting and installing the door and window is necessary.

Disclosure of Invention

Therefore, the utility model provides a lower pulley for limiting and installing doors and windows, which solves the problems in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a lower pulley of spacing installation of door and window, includes shell, inner shell and door window section bar, and the inner shell inboard is provided with a plurality of assembly pulleys through a plurality of round pin axle rotations, and every group assembly pulley quantity is two, the shell passes through 90 spacing subassembly joint in the door and window section bar inboard, the inner shell passes through adjusting part to be connected in the shell inboard, the assembly pulley bottom all leaves the space with the inner shell bottom.

Preferably, the 90-degree limiting assembly comprises two movable pieces, the centers of the two movable pieces are respectively arranged in the shell in a rotating mode through countersunk movable rivets, and the two movable pieces are respectively positioned at the left end and the right end of the bottom of the shell.

Preferably, two groups of movable grooves corresponding to the two movable sheets are formed in the front end and the rear end of the shell, the number of each group of movable grooves is two, and the two movable grooves in the same group are staggered in the front-rear direction.

Preferably, the inner side of the door and window section bar is provided with a clamping groove, when the movable piece rotates to a position perpendicular to the shell, the movable piece is clamped in the clamping groove, and two side edges of the movable piece perpendicular to the shell are respectively attached to the inner walls of the two corresponding movable grooves.

Preferably, the adjusting component comprises an adjusting screw, the adjusting screw is in threaded connection with the side part of the right end of the outer shell, a nut is fixedly arranged on the side part of the right end of the inner shell, the left end of the adjusting screw penetrates through the nut, the surface of the adjusting screw is in threaded connection with the nut, a positioning groove is formed in the right end of the bottom of the inner shell, and the positioning groove corresponds to a movable piece which is rotationally arranged at the right end of the bottom of the outer shell.

Preferably, when the movable piece rotates to a position perpendicular to the outer shell, the left end of the inner shell is abutted against the movable piece which is rotatably arranged at the left end of the bottom of the outer shell, and the inner wall of the positioning groove is abutted against the movable piece which is rotatably arranged at the right end of the bottom of the outer shell.

The beneficial effects of the utility model are as follows:

1. through the shell, the inner shell, the door and window section bar, the pulley block, the 90-degree limiting assembly and the adjusting assembly are matched for use, two groups of movable grooves formed in two ends of the shell are asymmetrically arranged, so that the movable piece can be limited by 90 degrees, can only rotate to a position perpendicular to the shell from a position parallel to the shell, can effectively prevent the movable piece from jacking up the door and window section bar from the inside to generate convex marks due to overlarge force during installation, can effectively position the movable piece after rotation under the action of the adjusting assembly, and can prevent the movable piece from being stressed to rotate in the moving process of the door and window section bar, so that the movable piece can be stably clamped in the door and window section bar, namely, the lower pulley can be stably installed on the door and window section bar;

2. the outer shell and the inner shell do not need to be provided with waist-shaped holes, so that one waist-shaped hole machining procedure is omitted, and the processing is convenient;

3. a plurality of groups of pulley blocks can rotate on the inner side of the inner shell through the pin shafts, gaps are reserved between the pulley blocks and the inner shell, namely, two pulleys of each group of pulley blocks can move up and down, so that the acting points of the pulleys can be adjusted at any time in the sliding process of a door or window, the stress is even, and the door or window can move more stably.

Drawings

FIG. 1 is a top view of a structure provided by the present utility model;

FIG. 2 is a top view of the housing provided by the present utility model;

FIG. 3 is a front view of the inner shell according to the present utility model;

FIG. 4 is a top view of the structure provided by the present utility model when the inner shell is in contact with two movable plates;

fig. 5 is a schematic structural diagram of the movable piece and the door and window section bar when being clamped.

In the figure: 1. a housing; 2. an inner case; 3. a pin shaft; 4. pulley block; 5. countersunk movable rivets; 6. a movable plate; 7. a movable groove; 8. an adjusting screw; 9. a nut; 10. door and window section bar; 11. a clamping groove; 12. and a positioning groove.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Referring to fig. 1-5, the lower pulley for limiting and installing a door and window provided by the utility model comprises an outer shell 1, an inner shell 2 and a door and window section bar 10, wherein a plurality of pulley blocks 4 are rotatably arranged on the inner side of the inner shell 2 through a plurality of pin shafts 3, the number of pulleys of each pulley block 4 is two, the outer shell 1 is clamped on the inner side of the door and window section bar 10 through a 90-degree limiting assembly, the inner shell 2 is connected on the inner side of the outer shell 1 through an adjusting assembly, gaps are reserved at the bottoms of the pulley blocks 4 and the bottoms of the inner shell 2, so that both ends of each pulley block 4 can move up and down, namely, the two pulleys of each pulley block 4 can move up and down, so that the force points of the pulleys can be adjusted at any time in the process of pushing and pulling the door and window, the stress is uniform, and the door and window can move more stably;

the 90-degree limiting assembly comprises two movable pieces 6, the centers of the two movable pieces 6 are respectively arranged in the shell 1 in a rotating mode through countersunk movable rivets 5, the two movable pieces 6 are respectively positioned at the left end and the right end of the bottom of the shell 1, so that workers can manually rotate the movable pieces 6, two groups of movable grooves 7 corresponding to the two movable pieces 6 are formed in the front end and the rear end of the shell 1, the number of each group of movable grooves 7 is two, the two movable grooves 7 of the same group are arranged in a staggered mode in the front-rear mode, clamping grooves 11 are formed in the inner side of a door window section bar 10, when the movable pieces 6 rotate to the position perpendicular to the shell 1, the movable pieces 6 are clamped in the clamping grooves 11, namely the movable pieces 6 are clamped in the door window section bar 10, the lower pulleys are clamped with the door window section bar 10, the pulley assembly is fixed, the installation is convenient and quick, work efficiency can be greatly improved, the two sides of the movable pieces 6 perpendicular to the shell 1 are respectively attached to the inner walls of the corresponding two movable grooves 7, the movable grooves 7 of the same group are staggered in the front-rear mode, the movable pieces 6 can be attached to the movable pieces 6 in the mode, namely, when the movable pieces 6 can be mounted in the position perpendicular to the door window section bar 10 from the position perpendicular to the shell 1, and the position perpendicular to the door window section bar 10, and the position can only rotate by 90 degrees, and the protruding position of the door window section bar can be prevented from being rotated by the position perpendicular to the door window section bar from the position to the inside when the door window section bar 1;

the adjusting component comprises an adjusting screw 8, the adjusting screw 8 is in threaded connection with the side part of the right end of the outer shell 1, a nut 9 is fixedly arranged on the side part of the right end of the inner shell 2, the left end of the adjusting screw 8 penetrates through the nut 9, the surface of the adjusting screw 8 is in threaded connection with the nut 9 in forward and reverse directions, namely, when a worker rotates the adjusting screw 8 forward and reverse directions, the nut 9 in threaded connection with the surface of the adjusting screw 8 can reciprocate left and right, the inner shell 2 is controlled to reciprocate left and right in the outer shell 1, a positioning groove 12 is formed in the right end of the bottom of the inner shell 2, the positioning groove 12 corresponds to a movable piece 6 which is rotationally arranged at the right end of the bottom of the outer shell 1, when the movable piece 6 rotates to a position perpendicular to the outer shell 1, the left end of the inner shell 2 is in contact with the movable piece 6 which is rotationally arranged at the left end of the bottom of the outer shell 1, namely, the inner shell 2 can position two movable pieces 6 which are rotationally arranged by 90 degrees, namely, the movable piece 6 is prevented from being forced to rotate in the process of moving a door and window, so that the movable piece 6 can be stably clamped in the door and window section 10, and even the door section 10 can be stably installed on the pulley section 10.

The application process of the utility model is as follows: when the lower pulley is required to be assembled on the door and window section bar 10, a worker can put the shell 1 into the door and window section bar 10 firstly, then manually rotate the two movable pieces 6, so that the two movable pieces 6 are staggered front and back, namely, rotated by 90 degrees under the limit action of the asymmetrically arranged movable grooves 7, and the two movable pieces 6 are clamped in the clamping grooves 11 arranged in the door and window section bar 10;

when a worker manually rotates the movable piece 6 into the clamping groove 11 on the door and window section bar 10, the inner shell 2 is controlled to move left in the outer shell 1 by rotating the adjusting screw 8, so that the inner shell 2 moves to a position where the left end of the inner shell 2 abuts against the movable piece 6 positioned at the left end of the outer shell 1 and the inner wall of the positioning groove 11 abuts against the movable piece 6 positioned at the right end of the outer shell 1, the inner shell 2 positions the two movable pieces 6 rotated by 90 degrees, and accordingly, the installation operation can be realized, and the disassembly operation can be realized by reverse operation.

The above description is only of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.

Claims

1. The utility model provides a lower pulley of spacing installation of door and window, includes shell (1), inner shell (2) and door and window section bar (10), and the rotation of a plurality of round pins (3) are provided with a plurality of assembly pulley (4) in inner side of inner shell (2), and every pulley of group (4) quantity is two, its characterized in that: the outer shell (1) is clamped inside the door and window section bar (10) through a 90-degree limiting assembly, the inner shell (2) is connected inside the outer shell (1) through an adjusting assembly, and gaps are reserved between the bottoms of the pulley blocks (4) and the bottoms of the inner shell (2).

2. The door and window spacing mounted lower pulley of claim 1, wherein: the 90-degree limiting assembly comprises two movable pieces (6), the centers of the two movable pieces (6) are respectively arranged in the shell (1) in a rotating mode through countersunk movable rivets (5), and the two movable pieces (6) are respectively positioned at the left end and the right end of the bottom of the shell (1).

3. The door and window spacing mounted lower pulley of claim 2, wherein: two groups of movable grooves (7) corresponding to the two movable sheets (6) are formed in the front end and the rear end of the shell (1), the number of each group of movable grooves (7) is two, and the two movable grooves (7) in the same group are arranged in a staggered mode in the front-rear direction.

4. A door and window limit mounted lower pulley as in claim 3 wherein: the door and window section bar (10) inboard has seted up draw-in groove (11), works as movable piece (6) rotate to the position with shell (1) mutually perpendicular, movable piece (6) card is in draw-in groove (11), two side of movable piece (6) and shell (1) mutually perpendicular are laminated with two corresponding movable groove (7) inner walls respectively.

5. The door and window spacing mounted lower pulley of claim 2, wherein: the adjusting assembly comprises an adjusting screw (8), the adjusting screw (8) is in threaded connection with the right end side part of the outer shell (1), a nut (9) is fixedly arranged on the right end side part of the inner shell (2), the left end of the adjusting screw (8) penetrates through the nut (9), the surface of the adjusting screw (8) is in threaded connection with the nut (9), a positioning groove (12) is formed in the right end of the bottom of the inner shell (2), and the positioning groove (12) corresponds to a movable piece (6) which is rotatably arranged on the right end of the bottom of the outer shell (1).

6. The door and window limit mounted lower pulley as claimed in claim 5, wherein: when the movable piece (6) rotates to a position perpendicular to the outer shell (1), the left end of the inner shell (2) is abutted against the movable piece (6) which is rotatably arranged at the left end of the bottom of the outer shell (1), and the inner wall of the positioning groove (12) is abutted against the movable piece (6) which is rotatably arranged at the right end of the bottom of the outer shell (1).