CN215408041U

CN215408041U - Pulley for door and window

Info

Publication number: CN215408041U
Application number: CN202121317081.XU
Authority: CN
Inventors: 蒋卫振
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-01-04
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses a door and window pulley, comprising: a housing provided with a mounting groove with a downward notch; the fixed block is fixed on the inner wall of the mounting groove; the top surface of the first push block is connected to the inner top wall of the mounting groove in a sliding mode, a first screw hole penetrates through the first push block along the left and right sides, the first push block is located on the left side of the fixed block, one side face, close to the fixed block, of the first push block is a first guide face, and the first guide face inclines upwards from left to right; the screw rod is rotatably connected in the mounting groove, the screw rod is mutually matched and connected with the first screw hole, the first rotating wheel is rotatably connected in the first inner shell, one side surface, close to the first push block, of the first inner shell is a first sliding surface, the first sliding surface is connected to the first guide surface in a sliding fit mode, and the right side wall of the first inner shell is connected to the fixing block in a sliding mode.

Description

Pulley for door and window

Technical Field

The utility model relates to a sliding accessory, in particular to a pulley for doors and windows.

Background

A sliding door is a door and window, the sliding door usually includes the fixed frame body buried in the wall and the movable frame body which can move in the fixed frame body, the pulley is usually installed at the bottom of the sliding door and window, in order to support and slide the whole movable frame body, after the movable frame body is installed on the fixed frame body, the height of the pulley is adjusted, in order to make the pulley installed in place, the traditional pulley includes the outer shell and the inner shell, the roller is connected with the inner shell in the inner shell, the inclined hole is set on the side wall of the outer shell, the connecting pin is set on the inner shell and penetrates into the inclined hole, the screw is also set on the outer shell, the screw is connected with the inner shell through the screw thread, when the screw is rotated, the inner shell moves along the extending direction of the inclined hole, in order to adjust the height of the inner shell, but the inner shell and the outer shell of the pulley are connected by the screw and the connecting pin mainly, the whole of activity framework is pressed on the pulley, leads to the stress that screw rod and connecting pin department received great, and screw rod and connecting pin are easy to be out of shape to whole structure collapses and breaks.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a pulley for doors and windows that solves one or more of the problems set forth in the prior art, and provides at least one useful alternative or creation.

The solution of the utility model for solving the technical problem is as follows:

a door and window pulley comprising: a housing provided with a mounting groove with a downward notch; the fixing block is fixed on the inner wall of the mounting groove; the top surface of the first push block is connected to the inner top wall of the mounting groove in a sliding mode, the first push block can slide along the left-right direction, a first screw hole penetrates through the first push block along the left-right direction, the first push block is located on the left side of the fixed block, one side face, close to the fixed block, of the first push block is a first guide face, and the first guide face inclines upwards from left to right; the screw rod, its rotate connect in the mounting groove, the rotation axis of screw rod extends along the left and right direction, the screw rod with first screw is mutually supported and is connected, first inner shell, its internal rotation is connected with first runner, the rotation axis of first runner extends along the horizontal direction, first inner shell is close to a side of first ejector pad is first glide plane, first glide plane with first guide face is parallel to each other, first glide plane sliding fit connect in first guide face, first inner shell can follow on the first ejector pad the incline direction of first guide face slides, the right side wall sliding connection of first inner shell in on the fixed block, first inner shell can slide along upper and lower direction on the fixed block.

The technical scheme at least has the following beneficial effects: the outer shell can be arranged on a movable frame body of an external door leaf and can be contacted with the fixed frame body by virtue of the first rotating wheel in the first inner shell, when the height of the first rotating wheel needs to be adjusted, the screw rod is rotated, the screw rod is connected to the first screw hole of the first push block in a matching way, the top surface of the first push block is connected to the inner top wall of the mounting groove in a sliding way, the first push block can be close to or far away from the fixed block along with the forward and reverse rotation of the screw rod, when the first push block is close to the fixed block, the space between the first push block and the fixed block is reduced, the first inner shell and the first push block generate relative motion along the first guide surface inclined direction, the first inner shell moves downwards on the fixed block, so that the height of the first rotating wheel is reduced, when the first push block is far away from the fixed block, the space between the first push block and the fixed block is increased, and the first inner shell and the first push block also generate relative motion along the first guide surface inclined direction, and first inner shell up motion on the fixed block to make the high rising of first runner, in whole use, be between first ejector pad and the shell, between first inner shell and the first ejector pad the atress transmission between face and the face, so make overall structure stability higher, but bearing capacity is stronger, especially adapted heavy austral window, sliding sash etc. life is longer.

As a further improvement of the above technical solution, the present invention further includes a second pushing block and a second inner housing, a top surface of the second pushing block is slidably connected to an inner top wall of the mounting groove, the second pushing block is slidable in a left-right direction, the second pushing block is provided with a second screw hole extending in the left-right direction, the second pushing block is located at the right side of the fixed block, one side surface of the second pushing block close to the fixed block is a second guide surface, the second guide surface is inclined upward from right to left, a second rotating wheel is rotatably connected inside the second inner housing, a rotation axis of the second rotating wheel extends in a horizontal direction, one side surface of the second inner housing close to the second pushing block is a second sliding surface, the second sliding surface and the second guide surface are parallel to each other, the second sliding surface is slidably connected to the second guide surface, the second inner housing is slidable on the second pushing block in the inclined direction of the second guide surface, the left side wall of the second inner shell is connected to the fixed block in a sliding mode, the second inner shell can slide on the fixed block in the vertical direction, a first thread section and a second thread section are arranged on the screw rod in the left-right direction at intervals, the spiral directions of the first thread section and the second thread section are opposite, the first thread section is connected to the inside of the first screw hole in a matched mode, and the second thread section is connected to the inside of the second screw hole in a matched mode. Similarly, a second rotating wheel capable of adjusting the height up and down is arranged on the right side of the fixed block, a screw rod is rotated in a forward and reverse mode, the second push block can be close to or far away from the fixed block, when the second push block is close to the fixed block, the space between the second push block and the fixed block is reduced, the second inner shell and the second push block generate relative motion along the second guide surface in an inclined direction, the second inner shell moves downwards on the fixed block, so that the height of the second rotating wheel is reduced, when the second push block is far away from the fixed block, the space between the second push block and the fixed block is increased, the second inner shell and the second push block also generate relative motion along the second guide surface in an inclined direction, the second inner shell moves upwards on the fixed block, so that the height of the second rotating wheel is increased, as a first thread section and a second thread section with opposite threads are arranged on the screw rod, the screw rod can drive the first push block and the second push block to be close to or far away from each other, thereby causing the first wheel to be raised or lowered simultaneously with the second wheel.

As a further improvement of the above technical solution, a first dovetail groove is provided on the second guide surface, the first dovetail groove extends along an oblique direction of the second guide surface, a first guide rail is provided on the second sliding surface, the first guide rail is connected in the first dovetail groove in a matching manner, a second guide rail is provided on a left side wall of the second inner housing along an up-down direction, a second dovetail groove is provided on a right side wall of the fixed block, and the second guide rail and the second dovetail groove are connected in a matching manner. The first inner shell is respectively in sliding connection with the first pushing block and the fixed block through the matching of the dovetail groove and the guide rail, so that the first inner shell is more tightly connected with the fixed block and the first pushing block in a matching manner.

As a further improvement of the above technical solution, a third dovetail groove is provided on the first guide surface, the third dovetail groove extends along an oblique direction of the first guide surface, a third guide rail is provided on the first sliding surface, the third guide rail is connected in the third dovetail groove in a matching manner, a fourth guide rail is provided on the right side wall of the first inner housing along the vertical direction, a fourth dovetail groove is provided on the left side wall of the fixed block, and the fourth guide rail and the fourth dovetail groove are connected in a matching manner. Similarly, the second inner shell is respectively in sliding connection with the second push block and the fixed block through the matching of the dovetail groove and the guide rail, so that the matching connection between the second inner shell and the fixed block and the second push block is tighter.

As a further improvement of the technical scheme, the fixing block is provided with a mounting hole, a through hole is formed in the position, opposite to the mounting hole, of the outer wall of the shell, and a bolt penetrates through the through hole and is connected in the mounting hole in a matched mode. The fixed block passes through bolt locking to be fixed in the mounting groove to the detachable construction of fixed block is more convenient to the unit mount, when assembling, can pack into the mounting groove with first ejector pad in, then is connected first inner shell and first ejector pad cooperation, is connected the fixed block again with first inner shell cooperation at last and packs into in the mounting groove.

As a further improvement of the above technical solution, the outer side wall of the first inner casing is provided with scales along the up-down direction. The height of the first inner shell which changes up and down can be observed conveniently.

As a further improvement of the technical scheme, at least one end of the screw penetrates out of the shell, and an inner hexagonal hole is formed in the end face of the screw, which penetrates out of the shell. Utilize the instrument cooperation of peripheral hardware to be connected to interior hexagonal hole in order to rotate the screw rod, it is more convenient wholly to use.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the utility model, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a schematic diagram of the overall explosive structure of the present invention;

fig. 2 is a schematic view of the overall assembly structure of the present invention.

In the drawings: 100-outer shell, 200-fixed block, 210-second dovetail groove, 220-fourth dovetail groove, 300-first push block, 310-third dovetail groove, 400-screw rod, 410-first thread section, 420-second thread section, 500-first inner shell, 510-first runner, 520-third guide rail, 530-fourth guide rail, 600-second push block, 610-first dovetail groove, 700-second inner shell, 710-second runner, 720-first guide rail and 730-second guide rail.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. All technical characteristics in the utility model can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1 and 2, a door and window pulley includes: a housing 100 provided with a mounting groove having a downward notch; a fixing block 200 fixed to an inner wall of the mounting groove; the top surface of the first push block 300 is slidably connected to the inner top wall of the mounting groove, the first push block 300 can slide along the left-right direction, the first push block 300 is provided with a first screw hole in a left-right penetrating manner, the first push block 300 is positioned at the left of the fixed block 200, one side surface of the first push block 300 close to the fixed block 200 is a first guide surface, and the first guide surface inclines upwards from left to right; screw rod 400, its rotate connect in the mounting groove, the axis of rotation of screw rod 400 extends along left right direction, screw rod 400 with first screw is mutually supported and is connected, first inner shell 500, its inside rotation is connected with first runner 510, the axis of rotation of first runner 510 extends along the horizontal direction, first inner shell 500 is close to one side of first ejector pad 300 is first glide plane, first glide plane with first guide face is parallel to each other, first glide plane sliding fit connect in first guide face, first inner shell 500 can follow on the first ejector pad 300 the incline direction of first guide face slides, the right side wall sliding connection of first inner shell 500 in on the fixed block 200, first inner shell 500 can follow the up-and-down direction slip on the fixed block 200.

As can be seen from the above, the outer shell 100 can be mounted on a movable frame of an external door leaf, and can be in contact with a fixed frame by means of the first rotating wheel 510 in the first inner shell 500, when the height of the first rotating wheel 510 needs to be adjusted, the screw rod 400 is rotated, because the screw rod 400 is connected to the first screw hole of the first push block 300 in a matching manner, and the top surface of the first push block 300 is slidably connected to the inner top wall of the mounting groove, the first push block 300 can approach or depart from the fixed block 200 along with the forward and reverse rotation of the screw rod 400, when the first push block 300 approaches the fixed block 200, the space between the first push block 300 and the fixed block 200 becomes smaller, the first inner shell 500 and the first push block 300 generate a relative movement along the direction of the first guide surface, and the first inner shell 500 moves downward on the fixed block 200, so that the height of the first rotating wheel 510 decreases, and when the first push block 300 departs from the fixed block 200, the space between the first push block 300 and the fixed block 200 becomes larger, first inner shell 500 produces the relative motion along first guide face incline direction with first ejector pad 300 equally, and first inner shell 500 up-moves on fixed block 200, thereby make the high rising of first runner 510, in whole use, between first ejector pad 300 and shell 100, be the atress transmission between face and the face between first inner shell 500 and the first ejector pad 300, so make overall structure stability higher, but bearing capacity is stronger, be particularly useful for heavy austral window, sliding sash etc. life is longer, in practical application, the contained angle between first guide face and the mounting groove inner top wall is for being less than 45 degrees, in order to make things convenient for drive first inner shell 500 up-and-down motion through first ejector pad 300.

In practical applications, a plurality of first rotating wheels 510 may be installed in the first inner casing 500, and further, in order to increase the number of the rotating wheels installed, in this embodiment, the present invention further includes a second pushing block 600 and a second inner casing 700, a top surface of the second pushing block 600 is slidably connected to an inner top wall of the installation groove, the second pushing block 600 is slidable in a left-right direction, the second pushing block 600 is provided with a second screw hole in the left-right direction, the second pushing block 600 is located at the right side of the fixed block 200, a side surface of the second pushing block 600 close to the fixed block 200 is a second guide surface, the second guide surface is inclined upward from right to left, a second rotating wheel 710 is rotatably connected to the inside of the second inner casing 700, a rotation axis of the second rotating wheel 710 extends in a horizontal direction, a side surface of the second inner casing 700 close to the second pushing block 600 is a second sliding surface, the second sliding surface and the second guide surface are parallel to each other, the second sliding surface is connected to the second guide surface in a sliding fit manner, the second inner housing 700 is slidable on the second push block 600 along an inclined direction of the second guide surface, a left side wall of the second inner housing 700 is connected to the fixed block 200 in a sliding manner, the second inner housing 700 is slidable on the fixed block 200 in an up-and-down direction, a first thread section 410 and a second thread section 420 are arranged on the screw rod 400 in a left-and-right direction at intervals, the first thread section 410 is opposite to the second thread section 420 in a spiral direction, the first thread section 410 is connected to the first thread section in a matching manner, and the second thread section 420 is connected to the second thread section in a matching manner. Similarly, a second rotating wheel 710 capable of adjusting height up and down is provided at the right of the fixed block 200, the screw 400 is rotated forward and backward, the second push block 600 can be close to or away from the fixed block 200, when the second push block 600 is close to the fixed block 200, the space between the second push block 600 and the fixed block 200 becomes smaller, the second inner housing 700 and the second push block 600 generate a relative movement in the direction of the second guide surface inclination, while the second inner housing 700 moves down on the fixed block 200, so that the height of the second rotating wheel 710 is lowered, when the second push block 600 is away from the fixed block 200, the space between the second push block 600 and the fixed block 200 becomes larger, the second inner housing 700 and the second push block 600 also generate a relative movement in the direction of the second guide surface inclination, while the second inner housing 700 moves up on the fixed block 200, so that the height of the second rotating wheel 710 is raised, because the screw 400 has the first thread section 410 and the second thread section 420 with opposite threads, when the screw 400 rotates, the first pushing block 300 and the second pushing block 600 are driven to approach or separate from each other, so that the first rotating wheel 510 and the second rotating wheel 710 are lifted or lowered simultaneously.

In addition to the shape of the outer casing 100 being designed to limit the movement between the second inner casing 700 and the second push block 600 to improve the tightness of the sliding connection, the sliding fit connection structure between the second inner casing 700 and the second push block 600 and the fixed block 200 may be changed, in this embodiment, the second guide surface is provided with a first dovetail groove 610, the first dovetail groove 610 extends along the oblique direction of the second guide surface, the second sliding surface is provided with a first guide rail 720, the first guide rail 720 is fittingly connected into the first dovetail groove 610, the left side wall of the second inner casing 700 is provided with a second guide rail 730 along the up-down direction, the right side wall of the fixed block 200 is provided with a second dovetail groove 210, and the second guide rail 730 is fittingly connected with the second dovetail groove 210. The first inner housing 500 is respectively in sliding connection with the first push block 300 and the fixed block 200 through the matching of the dovetail groove and the guide rail, so that the matching connection between the first inner housing 500 and the fixed block 200 and the first push block 300 is tighter.

Similarly, as an embodiment of a sliding structure between the first inner housing 500 and the first push block 300 and the fixed block 200, the first guide surface is provided with a third dovetail groove 310, the third dovetail groove 310 extends along an oblique direction of the first guide surface, the first sliding surface is provided with a third guide rail 520, the third guide rail 520 is connected in the third dovetail groove 310 in a matching manner, the right side wall of the first inner housing 500 is provided with a fourth guide rail 530 in an up-down direction, the left side wall of the fixed block 200 is provided with a fourth dovetail groove 220, and the fourth guide rail 530 is connected in a matching manner with the fourth dovetail groove 220. Similarly, the second inner housing 700 is slidably connected to the second push block 600 and the fixed block 200 through the dovetail grooves and the guide rails, so that the second inner housing 700 is more tightly connected to the fixed block 200 and the second push block 600.

In order to facilitate the overall assembly, the fixing block 200 is detachably connected to the mounting groove, and in the following embodiment, the fixing block 200 is provided with a mounting hole, a through hole is formed in a position of the outer wall of the housing 100, which faces the mounting hole, and a bolt penetrates through the through hole and is connected to the mounting hole in a matching manner. Fixed block 200 passes through bolt fastening and fixes in the mounting groove to the detachable construction of fixed block 200 is more convenient to the global positioning, when assembling, can pack into the mounting groove with first ejector pad 300 in, then is connected first inner shell 500 and the cooperation of first ejector pad 300, at last again with fixed block 200 and the cooperation of first inner shell 500 be connected and pack into in the mounting groove.

In some embodiments, the outer sidewall of the first inner case 500 is provided with a scale in the up-down direction. It is convenient to observe the height of the first inner case 500 varying up and down.

In order to facilitate the rotation of the screw 400, in this embodiment, at least one end of the screw 400 penetrates through the housing 100, and an end surface of the screw 400 penetrating through the housing 100 is provided with a hexagon socket. The tool of the peripheral device is connected to the hexagon socket hole in a matching manner to rotate the screw 400, so that the practicability is improved.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the utility model as set forth in the claims appended hereto.

Claims

1. A door and window pulley, characterized in that: the method comprises the following steps:

a housing (100) provided with a mounting groove with a downward notch;

a fixing block (200) fixed to an inner wall of the mounting groove;

the top surface of the first push block (300) is connected to the inner top wall of the mounting groove in a sliding mode, the first push block (300) can slide in the left-right direction, a first screw hole penetrates through the first push block (300) in the left-right direction, the first push block (300) is located on the left of the fixing block (200), one side face, close to the fixing block (200), of the first push block (300) is a first guide face, and the first guide face inclines upwards from left to right;

a screw rod (400) rotatably connected in the mounting groove, wherein the rotation axis of the screw rod (400) extends along the left-right direction, the screw rod (400) is mutually matched and connected with the first screw hole,

first inner shell (500), its internal rotation is connected with first runner (510), the axis of rotation of first runner (510) extends along the horizontal direction, first inner shell (500) are close to a side of first ejector pad (300) is first glide plane, first glide plane with first guide face is parallel to each other, first glide plane sliding fit connect in first guide face, first inner shell (500) can follow on first ejector pad (300) the incline direction of first guide face slides, the right side wall sliding connection of first inner shell (500) in on fixed block (200), first inner shell (500) can slide along the up-and-down direction on fixed block (200).

2. A door and window pulley according to claim 1, wherein: still include second ejector pad (600) and second inner shell (700), the top surface sliding connection of second ejector pad (600) in the interior roof of mounting groove, second ejector pad (600) can be followed left right direction and slided, second ejector pad (600) runs through along left right direction and is provided with the second screw, second ejector pad (600) are located the right-hand side of fixed block (200), second ejector pad (600) are close to a side of fixed block (200) is the second guide face, the slope of second guide face from right to left side up, the inside rotation of second inner shell (700) is connected with second runner (710), the axis of rotation of second runner (710) extends along the horizontal direction, second inner shell (700) are close to a side of second ejector pad (600) are the second glide plane, the second glide plane with the second guide face is parallel to each other, the second glide plane sliding fit connect in the second guide face, the second inner shell (700) can slide on the second push block (600) along the inclined direction of the second guide surface, the left side wall of the second inner shell (700) is connected to the fixing block (200) in a sliding mode, the second inner shell (700) can slide on the fixing block (200) along the vertical direction, a first thread section (410) and a second thread section (420) are arranged on the screw rod (400) along the left-right direction at intervals, the spiral directions of the first thread section (410) and the second thread section (420) are opposite, the first thread section (410) is connected in the first thread hole in a matched mode, and the second thread section (420) is connected in the second thread hole in a matched mode.

3. A door and window pulley according to claim 2, wherein: the second guide surface is provided with first dovetail groove (610), first dovetail groove (610) are followed the incline direction of second guide surface extends, be provided with first guide rail (720) on the second glide plane, first guide rail (720) cooperation connect in first dovetail groove (610), the left side wall of second inner shell (700) is provided with second guide rail (730) along upper and lower direction, the right side wall of fixed block (200) is provided with second dovetail groove (210), second guide rail (730) with second dovetail groove (210) are connected in coordination.

4. A door and window pulley according to claim 1, wherein: be provided with third dovetail (310) on the first guide plane, third dovetail (310) are followed the incline direction of first guide plane extends, be provided with third guide rail (520) on the first glide plane, third guide rail (520) cooperation connect in third dovetail (310), the right side wall of first inner shell (500) is provided with fourth guide rail (530) along upper and lower direction, the left side wall of fixed block (200) is provided with fourth dovetail (220), fourth guide rail (530) with fourth dovetail (220) are mutually supported and are connected.

5. A door and window pulley according to claim 1, wherein: the fixing block (200) is provided with a mounting hole, a through hole is formed in the position, right opposite to the mounting hole, of the outer wall of the shell (100), and a bolt penetrates through the through hole and is connected in the mounting hole in a matched mode.

6. A door and window pulley according to claim 1, wherein: the outer side wall of the first inner shell (500) is provided with scales along the up-down direction.

7. A door and window pulley according to claim 1, wherein: at least one end of the screw rod (400) penetrates out of the shell (100), and an inner hexagonal hole is formed in the end face, penetrating out of the shell (100), of the screw rod (400).