CN220076235U

CN220076235U - Worm wheel driving rope tightener

Info

Publication number: CN220076235U
Application number: CN202321447986.8U
Authority: CN
Inventors: 智雄风; 封平
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-11-24
Anticipated expiration: 2033-06-08

Abstract

The utility model relates to a worm wheel driving rope tightener, which comprises a frame body and a rotating shaft, wherein a worm wheel and a worm for driving the rotating shaft to rotate are arranged on the frame body, a rotating frame is arranged on the frame body, the worm is arranged on the rotating frame, and the rotating frame drives the worm to enter or leave from a meshing position with the worm wheel. The beneficial effects of the utility model are as follows: the rope tightener is driven by the worm and the worm wheel to tighten the rope, so that the rope tightener is stable in driving, strong in tightening force, high in reliability, and capable of remarkably improving the operation efficiency by being matched with an electric tool, and the worm can be conveniently meshed with or separated from the worm wheel, so that various operation modes are facilitated.

Description

Worm wheel driving rope tightener

Technical Field

The utility model relates to a truck rope tightener, in particular to a worm wheel drive rope tightener.

Background

The rope tightener is a necessary loading safety device for a large truck and is used for firmly binding cargoes on the truck. The existing freight car rope tightener adopts a rotating shaft to wind a binding rope to bind the goods, and the ratchet wheel is used for preventing the goods from loosening. The rotary shaft directly drives the winding binding rope, the moment for tightening the binding rope is small, the twisting bar is needed to be used for reinforcing and binding goods, and more manual operation is needed. And when the ratchet wheel is used for preventing the rotating shaft from reversing, a small amount of loosening can be generated, and the reliable tensioning of the binding rope is not facilitated.

Disclosure of Invention

The utility model aims to provide a worm wheel driven rope tightener which can realize quick, convenient and reliable tightening and binding of a truck binding rope.

In order to achieve the above object, the technical scheme of the present utility model is as follows: the utility model provides a worm wheel drive euphroe, includes support body and pivot, is equipped with the drive pivot pivoted worm wheel and worm, be equipped with the revolving rack on the support body, the worm is installed on the revolving rack, the revolving rack drives the worm get into or break away from with the engaged position of worm wheel.

Further, in order to realize rotational positioning of the turret, the turret is hinged to the turret body through a turret shaft, and the turret is provided with a positioning pin for positioning the worm in an engaged position.

Furthermore, in order to avoid interference when the worm is separated from the worm wheel, when the worm wheel is meshed with the worm, an included angle between a connecting line of the center of the rotating frame shaft and the center of the worm and the rotating shaft is not more than 30 degrees.

Still further, in order to make the worm keep the state of breaking away from the meshing, the revolving rack is equipped with the revolving rack round pin post, the revolving rack round pin post is equipped with the revolving rack pinhole, the support body is equipped with the support body round pin post, the support body round pin post is equipped with the support body pinhole, the locating pin passes revolving rack pinhole and support body pinhole make the worm location is in the meshing position, when worm and worm wheel break away from, the revolving rack round pin post is rotated through the support body pinhole.

Further, in order to retain the conventional operation means, the worm wheel is disposed at one end of the rotation shaft, and a wrench hole is formed at the other end of the rotation shaft.

Further, in order to be able to operate with a power tool, the tip of the worm is provided with a wrench socket.

Still further, a preferred wrench socket is one wherein the wrench socket is an external hex socket and/or an internal hex socket.

The beneficial effects of the utility model are as follows: the rope tightener is driven by the worm and the worm wheel to tighten the rope, so that the rope tightener is stable in driving, strong in tightening force, high in reliability, and capable of remarkably improving the operation efficiency by being matched with an electric tool, and the worm can be conveniently meshed with or separated from the worm wheel, so that various operation modes are facilitated.

The utility model is described in detail below with reference to the drawings and examples.

Drawings

FIG. 1 is a block diagram of the present utility model;

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is an exploded view of the structure of the present utility model;

FIG. 4 is a cross-sectional view of the turret structure of the present utility model;

FIG. 5 is a cross-sectional view of the structure of the turret of the present utility model with the worm disengaged from the worm gear;

FIG. 6 is a schematic diagram of the present utility model using an electric wrench;

FIG. 7 is a schematic diagram of the drive of the present utility model;

FIG. 8 is a schematic view of the rotation of the present utility turret;

fig. 9 is a schematic view of the locating pin disengaging the worm from engagement with the worm gear.

Detailed Description

As shown in fig. 1 to 5, a worm wheel driving rope tightener comprises a frame body 10 and a rotating shaft 20, wherein the worm wheel 30 and a worm 31 for driving the rotating shaft to rotate are arranged on the frame body, a rotating frame 40 is arranged on the frame body, the worm is installed on the rotating frame, and the rotating frame drives the worm to enter or leave from a meshing position with the worm wheel.

The turret is hinged to the frame body 10 by a turret shaft 41, and is provided with a positioning pin 42 for positioning the worm in an engaged position.

When the worm wheel is meshed with the worm, an included angle alpha between a connecting line of the center of the rotating frame shaft and the center of the worm and the rotating shaft is not more than 30 degrees.

The rotating frame is provided with a rotating frame pin 43, the rotating frame pin is provided with a rotating frame pin hole 44, the frame body is provided with a frame body pin 11, the frame body pin is provided with a frame body pin hole 12, the locating pin 42 penetrates through the rotating frame pin hole and the frame body pin hole to enable the worm to be located at the meshing position, and when the worm is separated from the worm wheel, the rotating frame pin rotates through the frame body pin hole.

The worm wheel 30 is arranged at one end of the rotating shaft, and a wrenching hole 21 is arranged at the other end of the rotating shaft.

The end of the worm is provided with a spanner interface 32.

The wrench interface is an external hexagonal interface and/or an internal hexagonal interface.

Embodiment one:

as shown in fig. 1 to 5, a worm wheel drive rope tensioner includes a frame 10 and a rotating shaft 20.

The spindle 20 rotates on the frame 10 and is axially restrained by two spring clips 23. One end of the rotating shaft 20 extends out of the frame body and is provided with a worm wheel 31, an inner hole of the worm wheel 31 is a screw hole 33, a stud 22 matched with the screw hole 33 of the worm wheel is arranged at the end of the rotating shaft, and in order to match the rotation stress direction of the rotating shaft, the screw hole 33 of the worm wheel and the stud 22 of the rotating shaft are left-handed threads. The other end of the rotating shaft extends out of the frame body and is provided with a wrenching hole 21.

The worm 31 meshed with the worm wheel 30 is mounted on a rotating frame 40, the rotating frame is hinged with the frame body 10 through a rotating frame shaft 41, and the rotating frame 40 can rotate on the frame body to drive the worm 31 to enter or leave the meshing position with the worm wheel. The turret is provided with a locating pin 42 for locating the worm in the engaged position.

The turret 40 is provided with turret pin 43, turret pin 44, frame 11, and frame pin 12. The positioning pin 42 passes through the turret pin hole 44 and the frame body pin hole 12 to position the worm 31 in engagement with the worm wheel. When the worm is disengaged from the worm wheel, the rotating frame pin 43 integrally rotates through the frame body pin hole 12, so that the positioning pin 42 can pass through the frame body pin hole 12 again to block the rotating frame 40, and the worm is kept in a position disengaged from the worm wheel, as shown in fig. 5.

The rotating frame shaft 41 is arranged on the side wall of the frame body 10 and is positioned at the side edge of the worm wheel 30, and when the worm wheel 30 is meshed with the worm 31, an included angle alpha between a connecting line of the center of the rotating frame shaft and the center of the worm and the center line of the rotating shaft is not more than 30 degrees. Thus, when the worm is driven to be separated from the worm wheel by the rotating frame 40, the worm moves along the radial direction of the worm wheel, and interference with the worm wheel is avoided.

The worm wheel can be operated by adopting an electric wrench, the end head of the worm is provided with a wrench interface 32, and in the quantity of the goods to be loaded, the wrench interface 32 is a combined structure of an outer hexagonal interface and an outer hexagonal interface. The external hex socket is in fact a hex nut configuration that can be rotated by a hex socket wrench. The inner hexagonal interface is a hexagonal hole and is arranged in the center of the wrench interface and can be rotated by an inner hexagonal wrench.

As shown in fig. 6 and 7, the present utility model may be used by using an electric wrench 50, and the electric wrench 50 shown in fig. 6 is fitted with a hexagonal socket wrench 51 to be fitted over the external hexagonal socket. The electric wrench drives the worm 31 to rotate through the wrench interface 32, the worm 31 drives the worm wheel 30 to rotate, the rotating shaft 20 is driven to rotate, and the binding rope is tensioned. The screw hole 33 of the worm wheel and the stud 22 of the rotating shaft are stressed in the screwing direction in the rotating driving process, and the worm wheel and the worm cannot be loosened. Because the worm wheel and the worm are self-locking mechanical structures, the rotating shaft 20 for tightening the binding rope cannot be loosened by itself. When the binding rope is required to be loosened, the worm can be rotated in the loosening direction by using a wrench, after the binding rope is loosened, the locating pin 42 (shown in fig. 8) can be pulled out, the rotating frame 40 is rotated, the worm is separated from the meshing position with the worm wheel (shown in fig. 9), and the rotating shaft can be freely rotated to quickly loosen the binding rope. If it is desired to keep the worm and worm wheel disengaged, the locating pin 42 may be inserted into the housing pin hole 12 to block the turret 40 from homing. In this state, the rotating shaft can freely rotate, and the rotating shaft can also be rotated through the wrenching hole 21 at the other end of the rotating shaft, so that the operation similar to that of a common rope tightener is realized.

The utility model has convenient operation, convenient disassembly and maintenance, large rope tightening force, and can save time and labor when matched with an electric wrench, thereby providing convenience for cargo transportation and storage.

Claims

1. The utility model provides a worm wheel drive euphroe, includes support body and pivot, its characterized in that is equipped with the drive pivot pivoted worm wheel and worm, be equipped with the revolving rack on the support body, the worm is installed on the revolving rack, the revolving rack drives the worm get into or break away from with the engaged position of worm wheel.

2. A worm gear drive tensioner as claimed in claim 1 wherein the turret is hinged to the frame body by a turret shaft, the turret being provided with a locating pin to locate the worm in an engaged position.

3. A worm gear drive tensioner as claimed in claim 2, wherein the angle between the line connecting the centre of the turret shaft and the centre of the worm and the axis of rotation is not more than 30 ° when the worm gear is engaged with the worm.

4. The worm wheel drive rope tensioner according to claim 2, wherein the rotating frame is provided with a rotating frame pin, the rotating frame pin is provided with a rotating frame pin hole, the frame body is provided with a frame body pin, the frame body pin is provided with a frame body pin hole, the positioning pin passes through the rotating frame pin hole and the frame body pin hole to enable the worm to be positioned at an engagement position, and when the worm is separated from the worm wheel, the rotating frame pin rotates through the frame body pin hole.

5. The worm-gear-driven rope tightener according to claim 1, wherein the worm gear is disposed at one end of the rotation shaft, and a wrenching hole is formed at the other end of the rotation shaft.

6. The worm-gear-driven tightener as claimed in claim 1, wherein the worm has a wrench socket at an end thereof.

7. A worm drive tensioner as claimed in claim 6, wherein the wrench interface is an external hex interface and/or an internal hex interface.