CN212429937U - Valve constant torque tightening handle - Google Patents

Abstract

The utility model relates to a valve constant torque tightening handle, which comprises a valve body, wherein the valve body is provided with a valve rotating shaft, a threaded hole is arranged on the valve rotating shaft, a torque block is sleeved outside the valve rotating shaft and is connected with a valve handle, the valve handle is provided with an inner sleeve, and the inner sleeve is sleeved on the torque block; the lower end surface of the valve handle is contacted with the top end of the valve rotating shaft; a connecting hole is formed in the center of the valve handle; the valve handle is connected with the valve rotating shaft through a locking screw; the inner surface and the outer surface of the inner sleeve are both hexagonal; the inner sleeve is provided with a rectangular groove along the axial direction. The constant torque tightening handle of the valve of the utility model adds a torque block which is shorter than the valve core shaft on the valve core shaft, and a groove is arranged on the handle inner sleeve which is matched with the torque block; when the torque of the switch valve is too large, the inner sleeve of the handle is properly opened, so that the abrasion of the valve is reduced, the abnormal opening and closing condition of the valve is avoided, and the service life of the valve is prolonged.

Description

Valve constant torque tightening handle

Technical Field

The utility model relates to a valve, specific theory relates to a handle is screwed up to valve permanent moment of torsion.

Background

The connection between the switch handle and the valve core shaft of the small valve generally adopts a fixed connection mode or an over-fit connection mode between the valve core shaft and the handle hole. Due to different strength of hands, the situation of over-tightening can be generated in the process of opening and closing the valve; after the situation occurs, the following two conditions which are unfavorable to the use of the valve easily occur, so that the valve is blocked and is difficult to open or close; the abrasion of the sealing surface of the valve core is increased, and the service life of the valve is reduced. Therefore, since the opening and closing of the valve cannot be operated with a proper constant torque; the inconvenience in use and the shortening of the service life of the valve are brought, and the waste of resources is caused.

SUMMERY OF THE UTILITY MODEL

Not enough to above-mentioned prior art, the utility model provides a handle is screwed up to valve constant torque of simple structure, convenient operation, extension valve life.

The utility model adopts the technical proposal that:

the utility model provides a handle is screwed up to valve permanent moment of torsion, includes the valve body, and the valve body is provided with the valve pivot, is provided with the screw hole in the valve pivot, and valve pivot outside cover is equipped with the torsion piece, and the torsion piece is connected its characterized in that with the valve handle:

the valve handle is provided with an inner sleeve which is sleeved on the torsion block;

the lower end surface of the valve handle is contacted with the top end of the valve rotating shaft;

a connecting hole is formed in the center of the valve handle;

the valve handle is connected with the valve rotating shaft through a locking screw;

the inner surface and the outer surface of the inner sleeve are both hexagonal;

the inner sleeve is provided with a rectangular groove along the axial direction.

Six rectangular grooves are formed in the vertex of the hexagon and penetrate through the inner sleeve in the axial direction.

And a 0.5mm gap is formed between the locking end surface of the locking screw and the upper end surface of the valve handle.

The valve rotating shaft is a stepped shaft and comprises a lower valve rotating shaft and an upper valve rotating shaft, the diameter of the lower valve rotating shaft is larger than that of the upper valve rotating shaft, the cross section of the upper valve rotating shaft is hexagonal, and the torsion block is sleeved on the upper valve rotating shaft; the height of the torsion block is smaller than the length of the upper rotating shaft.

The constant torque tightening handle of the valve of the utility model adds a torque block which is shorter than the valve core shaft on the valve core shaft, and a groove is arranged on the handle inner sleeve which is matched with the torque block; when the torque of the switch valve is too large, the inner sleeve of the handle can be properly opened; so that the slipping phenomenon is generated between the inner sleeve of the handle and the torsion block; the constant torque operation of the switch valve is realized; therefore, the abrasion of the valve is slowed down, the abnormal opening and closing condition of the valve is avoided, and the service life of the valve is prolonged.

The utility model discloses relative prior art's beneficial effect:

the handle is screwed up by the constant torque of the valve, and the valve switch is operated under the constant torque by protecting the over-torque operation in the valve switch process, so that the valve switch is prevented from being blocked, and the valve is opened or closed more smoothly; reduce the abrasion of the sealing surface of the valve core and prolong the service life of the valve.

Drawings

Fig. 1 is a schematic structural view of the valve constant torque tightening handle of the present invention;

fig. 2 is a schematic structural view of a valve handle of the constant torque tightening handle of the valve of the present invention;

fig. 3 is a schematic view of the valve handle of the constant torque tightening handle of the present invention.

In the drawings, the main parts are illustrated by symbols:

in the figure:

1. valve body 2 and valve rotating shaft

3. Threaded hole 4, torsion piece

5. Inner sleeve 6 and valve handle

7. Connecting hole 8, locking screw

9. A rectangular groove.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples:

as shown in the attached figures 1-3, the constant-torque valve tightening handle comprises a valve body 1, a valve rotating shaft 2 is arranged on the valve body 1, a threaded hole 3 is formed in the valve rotating shaft 2, a torque block 4 is sleeved on the outer side of the valve rotating shaft 2, the torque block 4 is connected with a valve handle 6,

the valve handle 6 is provided with an inner sleeve 5, and the inner sleeve 5 is sleeved on the torsion block;

the lower end surface of the valve handle is contacted with the top end of the valve rotating shaft;

a connecting hole 7 is formed in the center of the valve handle;

the valve handle is connected with the valve rotating shaft through a locking screw 8;

the inner surface and the outer surface of the inner sleeve are both hexagonal;

the inner sleeve is provided with a rectangular groove 9 in the axial direction.

Six rectangular grooves 9 are formed in the vertex of the hexagon and penetrate through the inner sleeve in the axial direction.

And a 0.5mm gap is formed between the locking end surface of the locking screw and the upper end surface of the valve handle.

The valve rotating shaft is a stepped shaft and comprises a lower valve rotating shaft and an upper valve rotating shaft, the diameter of the lower valve rotating shaft is larger than that of the upper valve rotating shaft, the cross section of the upper valve rotating shaft is hexagonal, and the torsion block is sleeved on the upper valve rotating shaft; the height of the torsion block is smaller than the length of the upper rotating shaft.

The constant torque tightening handle of the valve of the utility model adds a torque block which is shorter than the valve core shaft on the valve core shaft, and a groove is arranged on the handle inner sleeve which is matched with the torque block; when the torque of the switch valve is too large, the inner sleeve of the handle can be properly opened; so that the slipping phenomenon is generated between the inner sleeve of the handle and the torsion block; the constant torque operation of the switch valve is realized; therefore, the abrasion of the valve is slowed down, the abnormal opening and closing condition of the valve is avoided, and the service life of the valve is prolonged.

The constant-torque tightening handle of the valve of the utility model protects the over-torque operation in the valve opening and closing process, so that the valve opening and closing are all operated under constant torque, the valve opening and closing is prevented from being blocked, and the valve is opened or closed more smoothly; reduce the abrasion of the sealing surface of the valve core and prolong the service life of the valve.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. All the simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention.

Claims (4)

1. The utility model provides a handle is screwed up to valve permanent moment of torsion, includes valve body (1), and valve body (1) is provided with valve pivot (2), is provided with screw hole (3) on valve pivot (2), and valve pivot (2) outside cover is equipped with torsion piece (4), and torsion piece (4) are connected its characterized in that with valve handle (6):

the valve handle (6) is provided with an inner sleeve (5), and the inner sleeve (5) is sleeved on the torsion block;

the lower end surface of the valve handle is contacted with the top end of the valve rotating shaft;

a connecting hole (7) is formed in the center of the valve handle;

the valve handle is connected with the valve rotating shaft through a locking screw (8);

the inner surface and the outer surface of the inner sleeve are both hexagonal;

the inner sleeve is provided with a rectangular groove along the axial direction.

2. The valve constant torque tightening handle according to claim 1, wherein:

six rectangular grooves are formed in the vertex of the hexagon and penetrate through the inner sleeve in the axial direction.

3. The valve constant torque tightening handle according to claim 1, wherein:

and a 0.5mm gap is formed between the locking end surface of the locking screw and the upper end surface of the valve handle.

4. The valve constant torque tightening handle according to claim 1, wherein:

the valve rotating shaft is a stepped shaft and comprises a lower valve rotating shaft and an upper valve rotating shaft, the diameter of the lower valve rotating shaft is larger than that of the upper valve rotating shaft, the cross section of the upper valve rotating shaft is hexagonal, and the torsion block is sleeved on the upper valve rotating shaft; the height of the torsion block is smaller than the length of the upper rotating shaft.

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