CN212900046U

CN212900046U - Valve worm wheel with adjustable flat key groove

Info

Publication number: CN212900046U
Application number: CN202021853048.4U
Authority: CN
Inventors: 吴志超
Original assignee: Quanzhou Chaoyue Worm Gear Valve Co Ltd
Current assignee: Quanzhou Chaoyue Worm Gear Valve Co Ltd
Priority date: 2020-08-29
Filing date: 2020-08-29
Publication date: 2021-04-06
Anticipated expiration: 2030-08-29

Abstract

A valve worm wheel with an adjustable flat key groove structurally comprises a box body, wherein an opening end and a closing end are arranged on the box body, an opening and closing rotating rod is rotatably arranged on the opening end, a worm connected with the opening and closing rotating rod is arranged in the box body, a flat key groove is formed in the opening and closing rotating rod, an adjusting rod is rotatably embedded at the end part of the opening and closing rotating rod, the right part of the adjusting rod is provided with a thread structure on the outer wall, the thread structure is connected with a moving ring through threads, when the flat key groove is seriously abraded, the flat key can be assembled in the flat key groove, the adjusting rod is rotated by a tool, the adjusting rod drives the moving ring to axially move in the chute, the moving ring drives the clamping block to extend into the flat key groove to be contacted with the flat key, the flat key is clamped, so that the flat key cannot generate displacement, the adjusting rod can be rotated after the flat key with the reduced volume caused by abrasion is assembled, the flat key with abrasion is clamped, so that the flat key is prevented from displacement, and the opening and closing work is influenced.

Description

Valve worm wheel with adjustable flat key groove

Technical Field

The utility model relates to a valve worm wheel with adjustable flat keyway belongs to valve worm wheel field.

Background

The valve worm wheel is also called as a valve worm wheel head and is arranged on a valve to play a role in controlling the positioning of a valve switch, when the opening end and the closing end of the existing valve worm wheel are used, a flat key needs to be embedded in a flat key groove of the opening end and the closing end, then a hand wheel is connected with the opening end and the closing end, after the valve worm wheel is used, the hand wheel and the flat key can be taken down for preventing mistaken contact, repeated disassembly and assembly work is carried out, the flat key groove of the opening end and the closing end is easily abraded, and the valve worm wheel is enabled to have a larger gap with the flat key after the flat key is assembled, so that the opening and.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art exists, the utility model aims at providing a valve worm wheel with adjustable flat key groove to solve opening and close the end of current valve worm wheel when using, need inlay the flat key in opening and close the flat key inslot of end, then meet the hand wheel with opening and close the end, after using, for preventing the mistake and touching, can take off hand wheel and flat key, repeated dismouting work, make the flat key groove of opening and closing the end produce wearing and tearing easily, lead to it behind the assembly flat key, great clearance appears with the flat key, the problem of work is opened and close in the influence.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a valve worm wheel with adjustable flat keyway, its structure includes the box, be equipped with the end of opening and close on the box, it is equipped with and opens and close the bull stick to open and close to serve to rotate, the inside worm that meets with opening and close the bull stick that is equipped with of box, open and close and be equipped with flat keyway on the bull stick, it has the regulation pole to open and close the bull stick tip rotation, it has the helicitic texture to adjust the pole right part for the outer wall, and threaded connection has the shift ring on this helicitic texture, open and close inside spout that is equipped with shift ring sliding connection of bull stick, spout upper portion extends towards a left side and forms the clamping passageway and leads to with flat keyway, it is equipped with the clamp splice to.

Furthermore, a rotary positioning block for limiting the axial movement of the adjusting rod is arranged in the opening and closing rotating rod.

Further, the end part of the clamping block forms an arc-shaped structure attached to the flat key.

Furthermore, a worm wheel meshed with the worm is further arranged inside the box body.

The utility model has the advantages that: when wearing and tearing are comparatively serious appear in the parallel key groove, can assemble the parallel key in the parallel key groove after, rotate the regulation pole through the instrument, it drives the shifting ring and carries out axial displacement in the spout to adjust the pole, the shifting ring drives the clamp splice and stretches into in the parallel key groove and takes place the contact with the parallel key, carry out the clamping to the parallel key, make the parallel key can not produce the displacement, also can be after the assembly because of wearing and tearing and the flat key that the volume diminishes, rotate the regulation pole, carry out the clamping to the parallel key that has wearing and tearing, prevent its displacement, and cause the influence to opening and close work.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a flat key groove adjustable valve worm wheel of the present invention;

FIG. 2 is a schematic side sectional view of the opening/closing lever;

fig. 3 is a schematic top sectional view of the clamping block.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1, 2 and 3, the present invention provides a valve worm gear with an adjustable flat key groove, which comprises: the structure of the device comprises a box body 1, wherein an opening and closing end 2 is arranged on the box body 1, an opening and closing rotating rod 3 is rotatably arranged on the opening and closing end 2, a worm connected with the opening and closing rotating rod 3 is arranged in the box body 1, a flat key groove 4 is arranged on the opening and closing rotating rod 3, an adjusting rod 5 is rotatably embedded at the end part of the opening and closing rotating rod 3, the right part of the adjusting rod 5 is of a threaded structure, a moving ring 7 is connected onto the threaded structure in a threaded manner, a sliding groove 6 in sliding connection with the moving ring 7 is arranged in the opening and closing rotating rod 3, the upper part of the sliding groove 6 extends towards the left to form a clamping channel and is communicated with the flat key groove 4, a clamping block 8 is arranged in the clamping channel in a sliding manner, the clamping block 8 is connected with the moving ring 7, a rotating positioning block 9 for limiting the axial movement of the adjusting rod 5 is also arranged in, and a worm wheel meshed with the worm is further arranged in the box body 1.

For example, when wearing and tearing are comparatively serious in flat keyway 4, can be after assembling the flat key in flat keyway 4, adjust pole 5 through the instrument rotation, adjust pole 5 and drive shifting ring 7 and carry out axial displacement in spout 6, shifting ring 7 drives clamp splice 8 and stretches into in flat keyway 4 and takes place the contact with the flat key, carry out the clamping to the flat key, make the flat key can not produce the displacement, also can be after assembling the flat key that reduces because of wearing and tearing, rotate and adjust pole 5, the flat key that has wearing and tearing is clamped, prevent its displacement, and cause the influence to opening and close work.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a valve worm wheel with adjustable flat keyway which characterized in that: the structure of the box comprises a box body (1), a starting and closing end (2) is arranged on the box body (1), a starting and closing rotating rod (3) is arranged on the starting and closing end (2) in a rotating mode, a worm connected with the starting and closing rotating rod (3) is arranged inside the box body (1), a flat key groove (4) is formed in the starting and closing rotating rod (3), an adjusting rod (5) is embedded in the rotating rod (3) in a rotating mode, the right portion of the adjusting rod (5) is of a threaded structure, a moving ring (7) is connected to the right portion of the threaded structure in a threaded mode, a sliding groove (6) connected with the moving ring (7) in a sliding mode is arranged inside the starting and closing rotating rod (3), the upper portion of the sliding groove (6) extends towards the left to form a clamping channel and is communicated with the flat key groove (4), a clamping block (8) is arranged in the.

2. The flat keyway adjustable valve worm gear of claim 1, wherein: and a rotary positioning block (9) for limiting the axial movement of the adjusting rod (5) is also arranged in the opening and closing rotating rod (3).

3. The flat keyway adjustable valve worm gear of claim 1, wherein: the end part of the clamping block (8) forms an arc-shaped structure (10) attached to the flat key.

4. The flat keyway adjustable valve worm gear of claim 1, wherein: and a worm wheel meshed with the worm is further arranged in the box body (1).