CN210069102U

CN210069102U - Labor-saving hand wheel

Info

Publication number: CN210069102U
Application number: CN201920838908.8U
Authority: CN
Inventors: 裘观阳
Original assignee: Hangzhou Dumeto Machinery Co Ltd
Current assignee: Hangzhou Dumeto Machinery Co Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-02-14
Anticipated expiration: 2029-06-04

Abstract

The utility model provides a labor-saving hand wheel, which comprises a hand wheel ring, a valve rod, connecting ribs and an extension handle, wherein the valve rod is arranged on the center of the hand wheel ring, and the valve rod is connected with the hand wheel ring through a plurality of connecting ribs; the outer side wall of the hand wheel ring is provided with a handle groove for accommodating an extension handle, the head of the extension handle is hinged in the handle groove through a pivot, the extension handle can rotate around the pivot to extend out of the handle groove, one side of the handle groove, which is close to the head of the extension handle, is provided with a limit wall, and after the extension handle extends out of the handle groove, the head of the extension handle is abutted against the limit wall; the bottom wall of the extension handle and the bottom wall of the handle groove are fixed with magnet pieces which are oppositely arranged, and the extension handle can be attracted in the handle groove by the two magnet pieces. The utility model discloses utilize the extension handle can easily rotate the hand wheel ring to the messenger opens the valve more laborsaving.

Description

Labor-saving hand wheel

Technical Field

The utility model belongs to the technical field of the valve accessories, concretely relates to laborsaving hand wheel.

Background

The valve with the hand wheel is opened and closed by rotating the hand wheel, the hand wheel is generally of an annular structure, the hand wheel is rotated by friction force between the hand and the hand wheel when the valve is opened or closed, when the valve is closed too tightly, large force needs to be applied to rotate the hand wheel, and operation is very laborious.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a laborsaving hand wheel that can easily open valve.

The utility model provides a following technical scheme:

a labor-saving hand wheel comprises a hand wheel ring, a valve rod, connecting ribs and an extension handle, wherein the valve rod is arranged at the circle center of the hand wheel ring and is connected with the hand wheel ring through a plurality of connecting ribs; the outer side wall of the hand wheel ring is provided with a handle groove for accommodating an extension handle, the head of the extension handle is hinged in the handle groove through a pivot, the extension handle can rotate around the pivot to extend out of the handle groove, one side of the handle groove, which is close to the head of the extension handle, is provided with a limit wall, and after the extension handle extends out of the handle groove, the head of the extension handle is abutted against the limit wall; the bottom wall of the extension handle and the bottom wall of the handle groove are fixed with magnet pieces which are oppositely arranged, and the extension handle can be attracted in the handle groove by the two magnet pieces.

Preferably, the head of the extension handle is fixed with a limiting block protruding outwards, an arc-shaped blocking groove matched with the rotating path of the limiting block is formed in the hand wheel ring, and the limiting block can rotate in the blocking groove.

Preferably, the longitudinal section of the hand wheel ring is elliptical; the extension handle comprises a handle inner wall close to the inner side of the handle groove and a handle outer wall far away from the inner side of the handle groove, and the handle outer wall is an arc-shaped wall flush with the surface of the hand wheel ring.

Preferably, the magnet piece is fixed to the tail of the extension handle or the handle slot by a countersunk head screw.

Preferably, the tail part of the outer wall of the handle is drilled with a pulling hole.

Preferably, the width of the pull hole is 1.5-2.5cm, and the length of the pull hole is 3-5 cm.

The utility model has the advantages that: the utility model is hinged with an extension handle in the handle groove of the hand wheel ring, when the valve is closed too tightly, the extension handle can be screwed out, and the extension handle is pushed to rotate the hand wheel ring, so as to increase the rotating torque of the hand wheel ring, and the use is more labor-saving; when the extension handle is not needed, the extension handle is contracted into the handle groove, and the extension handle is fixed by attracting the two magnet pieces, so that the normal use of the hand wheel ring is not influenced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the extension handle of the present invention during operation;

FIG. 2 is a schematic view of the extension handle of the present invention when retracted;

FIG. 3 is a view from the direction B of FIG. 1;

labeled as: 1. a hand wheel ring; 2. a valve stem; 3. connecting ribs; 4. an extension handle; 5. a handle slot; 6. a limiting wall; 7. a magnet piece; 8. hole drawing; 9. a limiting block; 10. a baffle groove; 11. the inner wall of the handle; 12. the outer wall of the handle.

Detailed Description

As shown in fig. 1 and 2, the labor-saving hand wheel comprises a hand wheel ring 1, a valve rod 2, a connecting rib 3 and an extension handle 4. Valve rod 2 is fixed in the centre of a circle department of hand rim 1, valve rod 1 is through three 3 fixed connection hand rim 1 of splice bar, be equipped with the handle groove 5 that is used for accomodating extension handle 4 on the lateral wall of hand rim 1, the head of extension handle 4 passes through the pivot and articulates in handle groove 5, extension handle 4 can stretch out handle groove 5 around the pivot rotation, handle groove 5 is close to head one side of extension handle 4 and is equipped with spacing wall 6, extension handle 4 stretches out behind handle groove 5, the spacing wall 6 of its head butt, the rotation stroke of spacing wall 6 restriction extension handle 4, thereby can transmit the rotational force of extension handle 4 to valve rod 2. The bottom wall of the extension handle 4 and the bottom wall of the handle groove 5 are respectively fixed with magnet sheets 7 which are oppositely arranged, and the two magnet sheets 7 have different magnetic levels and can be mutually attracted to fix the extension handle 4 in the handle groove 5. The two magnet pieces 7 are installed in an embedded mode, and cannot protrude out to influence the smooth extension and retraction of the extension handle; the magnet piece 7 is fixed at the tail part of the extension handle 4 or in the handle groove 5 through a countersunk screw, and the magnet piece 7 is positioned at the tail part of the extension handle 4, so that the force arm of the extension handle is increased, and the extension handle 4 can be easily pulled out from the handle groove 5. The tail part of the outer wall of the handle is drilled with a pull hole 8, the width of the pull hole 8 is 1.5-2.5cm, the length of the pull hole 8 is 3-5cm, and the extension handle 4 can be easily pulled out of the handle groove 5 by extending fingers into the pull hole 8.

As shown in fig. 1 and 3, the head of extension handle 4 is fixed with outside convex stopper 9, be equipped with the curved fender groove 10 that matches with stopper 9's rotation route on the hand wheel ring 1, keep off groove 10 intercommunication handle groove 5, stopper 9 can be at the rotation of keeping off groove 10, when extension handle 4 rotates the maximum aperture, stopper 9 butt keeps off the lateral wall of groove 10, keep off groove 10 and play supplementary limiting displacement to stopper 9's rotation, prevent that extension handle 4 from continuing to rotate, the rotation effort of extension handle 4 to valve rod 2 has further been transmitted.

The longitudinal section of the hand wheel ring 1 is oval, so that the hand wheel ring is convenient for holding operation by a palm; the extension handle 4 comprises a handle inner wall 11 close to the inner side of the handle groove 5 and a handle outer wall 12 far away from the inner side of the handle groove 5, the handle outer wall 12 is an arc-shaped wall flush with the surface of the hand wheel ring 1, and when the extension handle 4 is folded, the extension handle 4 does not protrude out of the surface of the hand wheel ring 1, so that the hand operation of the hand wheel ring 1 is more comfortable.

When the valve is closed too tightly, fingers stretch into the pull hole 8 to pull the extension handle 4 out of the handle groove 5, so that the head of the extension handle 4 is abutted to the limiting wall 6 and the baffle groove 10, the extension handle 4 is pushed along the direction A in the figure 1, the valve can be loosened by rotating the hand wheel ring 1, then the extension handle 4 is taken into the handle groove 5 and is sucked and fixed through the magnet piece 7.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A labor-saving hand wheel is characterized by comprising a hand wheel ring, a valve rod, a connecting rib and an extension handle; the valve rod is arranged at the circle center of the hand wheel ring and is connected with the hand wheel ring through a plurality of connecting ribs; the outer side wall of the hand wheel ring is provided with a handle groove for accommodating the extension handle, the head of the extension handle is hinged in the handle groove through a pivot, the extension handle can rotate around the pivot to extend out of the handle groove, one side of the handle groove, which is close to the head of the extension handle, is provided with a limit wall, and after the extension handle extends out of the handle groove, the head of the extension handle is abutted against the limit wall; the bottom wall of the extension handle and the bottom wall of the handle groove are fixed with magnet pieces which are oppositely arranged, and the extension handle can be attracted in the handle groove by the two magnet pieces.

2. The labor-saving hand wheel according to claim 1, wherein the head of the extension handle is fixed with a limiting block protruding outwards, the hand wheel ring is provided with an arc-shaped retaining groove matching with the rotation path of the limiting block, and the limiting block can rotate in the retaining groove.

3. The labor-saving hand wheel of claim 2, wherein the longitudinal section of the hand wheel ring is elliptical; the extension handle comprises a handle inner wall close to the inner side of the handle groove and a handle outer wall far away from the inner side of the handle groove, and the handle outer wall is an arc-shaped wall flush with the surface of the hand wheel ring.

4. The labor-saving handwheel of claim 3, wherein the magnet piece is fixed at the tail of the extension handle or in the handle slot by a countersunk screw.

5. The labor-saving hand wheel of claim 3, wherein a pull hole is drilled at the tail part of the outer wall of the handle.

6. The labor-saving hand wheel according to claim 5, wherein the width of the pulling hole is 1.5-2.5cm, and the length of the pulling hole is 3-5 cm.