KR20000001126A - Valve - Google Patents

Abstract

PURPOSE: A valve is provided to fix a hand wheel using a piece manufactured simply and at a low price. CONSTITUTION: A valve comprises: a lubricating nipple(4) formed in a bush(10) of a spindle(2) moving on its shaft via a hand wheel(3) and a nut section(9) and a support shackle(8) and inserted in the nut section; herein, a valve can be open and shut by the spindle, and a lubricant is fed to a spiral section between the nut section and the spindle through the lubricant nipple.

Description

valve

The invention includes a lubricating nipple screwed into a bush of a support shackle and a spindle that is axially movable through a handwheel and nut section and inserted into the nut section, the valve being capable of opening and closing by the spindle. And a valve configured to allow the lubricant to be conveyed to the threaded region between the nut section and the spindle via the lubrication nipple.

The handwheel can be secured by a set screw to prevent the valve from inadvertently moving. In this case the set screw is engaged inside a peripheral ring-shaped groove provided in the nut section, which nut section is engaged with the handwheel and by means of the nut section the spindle can move axially to open and close the valve.

The provision of a threaded bore for a set screw is only possible due to the additional manufacturing cost which increases the manufacturing cost. This drawback is particularly important because large volumes of products are used in such valves.

An object of the present invention is to form a valve capable of fixing a handwheel by means that is produced simply and inexpensively.

1 is a longitudinal cross-sectional view of a valve according to the present invention.

Explanation of symbols on the main parts of the drawings

1 housing 2 spindle

3: handwheel 4: lubrication nipole

5: ring groove 6: lubrication bore

7: valve blocking body 8: support

9: nut section 10: bush

This object is achieved by the nut section being able to be secured so as not to be twisted by the lubricating nipple.

Due to the structural shape described above, it is not necessary to use a fixing screw. However, the lubrication nipple can be matched to the function of the set screw by measures that do not significantly increase the manufacturing cost.

It is also necessary to form the threaded shaft of the lubricating nipole correspondingly longer, so that during braking of the handwheel the lubricating nipole can be inserted into the ring nut.

In order to increase the downtime of the valve, it is also important to make the lubricating nipoles of a correspondingly wear-resistant material.

Other preferred embodiments of the invention are described in the dependent claims.

Embodiments of the present invention are described below with reference to the accompanying drawings.

1 shows a valve comprising a housing 1 in which a valve blocking body 7 capable of closing the valve is arranged therein.

The valve blocking body 7 which functions as a choke can be actuated via the spindle 2, which is operatively engaged with the nut section 9 which is rotatable via the handwheel 3. The spindle 2 thereby moves in the axial direction.

The nut section 9 is rotatably supported in the bush 10, which is part of the support shackle 8, which is fixedly coupled with the housing 1.

Lubricating nipples 4 inserted into the ring-shaped grooves 5 provided in the nut section 9 are screwed into the bush 10. A lubrication bore 6 extends from the ring groove 5 to the threaded section of the threaded spindle 2.

The threaded shaft of the lubricated nipole 4 is longer than the wall thickness of the bush 10. When the lubricated nipple 4 is fully inserted in rotation, the nipple protrudes into the ring-shaped groove 5 to fix the nut section 9.

The handwheel 3 is thereby fixed, as a result of which the spindle 2 cannot move unintentionally.

In order to release the handwheel 3, it is only necessary to partially turn off the lubrication nipple 4 until the nut section 9 can rotate freely.

Since free discharge of the lubricant is ensured in the ring-shaped groove 5 through the groove, the function of the lubricating nipole 4 is maintained at all points, in particular even during braking of the handwheel.

Since the lubrication nipple 4 also functions as a set screw according to the present invention, it is not necessary to use a set screw.

According to the present invention, it is possible to form a valve capable of fixing the handwheel by means which are produced simply and inexpensively.

Claims (4)

Lubricating nipples screwed into the bush 10 of the support shaft 2 and the spindle 2 and the axially movable through the handwheel 3 and the nut section 9 are inserted into the nut section 9. 4) a valve configured to allow opening and closing of the valve by the spindle, and through the lubricating nipple, to allow lubricant to be transferred to the threaded region between the nut section 9 and the spindle 2 The valve, characterized in that the nut section (9) can be fixed so as not to be twisted by the lubrication nipple (4). 2. The valve according to claim 1, wherein the length of the threaded shaft of the lubricated nipple (4) is longer than the wall thickness of the bush (10). 2. The valve as claimed in claim 1, wherein the lubrication nipple (4) is made of a material resistant to wear. 2. The valve as claimed in claim 1, wherein the lubrication nipple (4) is pressed against the nut section (9) in a threaded final state.