CN212318836U

CN212318836U - Small-caliber multi-mode opening and closing valve

Info

Publication number: CN212318836U
Application number: CN202020773756.0U
Authority: CN
Inventors: 陈长青; 崔远明; 张小明
Original assignee: Tikos Technology Group Lishui General Valve Co Ltd
Current assignee: Tikos Technology Group Lishui General Valve Co Ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-01-08
Anticipated expiration: 2030-05-12

Abstract

The utility model provides a valve is opened and close to small-bore multimode, includes handle, valve body, case, goes up the valve stem, lower valve stem, vice hand wheel, runs from opposite directions the ring, drives the rotary rod through vice hand wheel and opens and close the valve, and its beneficial effect is: when the valve cannot be closed by using a conventional handle, the valve is closed by using the auxiliary hand wheel, so that the outflow of media is avoided, and the supply of media in other areas is not influenced.

Description

Small-caliber multi-mode opening and closing valve

Technical Field

The utility model relates to a small-bore valve technical field, especially a can be small-bore can the multimode valve of opening and close.

Background

The small-caliber valve is widely applied in the current civil field, is particularly frequently used on household water supply and heat supply pipelines, in daily life, the conventional valve is opened and closed through a handle, but the handle or a valve rod is easy to damage due to long-term frequent opening and closing, so that the outflow of media cannot be cut off, the medium can be prevented from flowing out by means of closing a main valve under general conditions, the function of the whole supply pipeline is lost due to the mode, and the supply of media in other areas of a household is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a valve is opened and close to small-bore multimode solves the single mode of opening and close of present valve, when handle or valve rod damage, can take another kind of mode to cut the medium, and does not influence the use of other regional media.

The utility model provides a technical scheme that its technical problem adopted: a small-caliber multi-mode opening and closing valve comprises a handle, an upper valve rod, a lower valve rod, an auxiliary hand wheel, split rings and a limiting pin, wherein cylindrical grooves are formed in the upper end and the lower end of a valve core and are in the same line with the axis, the upper valve rod is connected with the valve core through a bolt, the lower valve rod is connected with the valve core through a bolt, the split rings are arranged in the gap between the lower valve rod and the inner periphery of a valve body, and the lower valve rod is prevented from moving downwards along the axial direction; and the lower valve rod is also provided with a limiting pin for ensuring that the auxiliary hand wheel can only rotate 90 degrees and preventing the valve core from being opened and closed to the greatest extent due to over rotation or insufficient rotation angle. The auxiliary hand wheel can be detached, and when the lower valve rod needs to be rotated, the auxiliary hand wheel is installed at the lower end of the lower valve rod.

Preferably, a bearing is arranged in a gap between the periphery of the lower valve rod and the valve body, so that friction between the lower valve rod and the valve core in the opening and closing process of the valve is reduced, and the service life of the valve is prolonged.

Preferably, lower valve rod periphery with still install O shape sealing washer and packing pad, be equipped with the filler in the packing pad to increase the leakproofness of valve, packing pad lower extreme still is provided with the packing and presses the cover, in order to compress tightly the packing pad, guarantees the leakproofness of packing pad and lower valve rod.

Preferably, a valve seat is arranged between the valve body and the ball valve core and used for supporting the valve core in a fully closed position and providing sealing.

Preferably, a spring is fixedly arranged at a gap between the tail end of the upper valve rod and the top end of the lower valve rod and the valve core respectively, so that static electricity generated in the opening and closing process is reduced.

The valve obtained by the technical scheme has the beneficial effects that: when the valve cannot be closed by using a conventional handle, the auxiliary hand wheel is used for closing the valve, so that the outflow of media is avoided, and the supply of media in other areas is not influenced.

Drawings

Fig. 1 is a schematic structural diagram of the valve of the present invention.

Fig. 2 is an enlarged schematic view of the position a of the present invention.

Fig. 3 is a schematic structural view of the limit pin of the present invention.

Description of the drawings reference numbers: the valve comprises a handle 1, an upper valve rod 2, a valve body 3, a valve core 4, a detachable auxiliary hand wheel or handle 5, a valve seat 6, a spring 7, a lower valve rod 8, a split ring 9, a bearing 10, an O-shaped sealing ring 11, a packing pad 12, packing 13, a packing pressing sleeve 14 and a limiting pin 15.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

A small-caliber multi-mode opening and closing valve comprises a handle 1, an upper valve rod 2, a lower valve rod 8, a detachable auxiliary hand wheel or a detachable handle 5, a split ring 9 and a limiting pin 15, wherein cylindrical grooves are formed in the upper end and the lower end of a valve core 4 and are in the same straight line with the axis, the upper valve rod 2 is in bolt connection with the valve core 4, the lower valve rod 8 is in bolt connection with the valve core 4, the split ring is arranged in the gap between the lower valve rod 8 and the inner periphery of a valve body 3, and the lower valve rod 8 is prevented from moving downwards along the axial direction; the lower valve rod 8 is also provided with a limiting pin 15 for ensuring that the auxiliary hand wheel 5 can only rotate 90 degrees, and preventing the valve core from being completely opened and closed due to over-rotation or insufficient rotation angle; the auxiliary hand wheel 5 can be detached, and when the lower valve rod 8 needs to be rotated, the auxiliary hand wheel 5 is inserted and embedded at the lower end of the lower valve rod 8.

The lower valve rod 8 is connected with the valve body 3 through a shaft, and a bearing 10 is arranged at the gap between the periphery of the lower valve rod 8 and the valve body 3 so as to reduce the friction between the lower valve rod 8 and the valve core 4 in the opening and closing process of the valve and prolong the service life of the valve.

The periphery of the lower valve rod 8 is provided with an O-shaped sealing ring 11 and a packing pad 12, a packing 13 is arranged in the packing pad 12 to increase the sealing performance of the valve, and a packing pressing sleeve 14 is arranged at the lower end of the packing pad 12 to compress the packing pad 12, so that the sealing performance of the packing pad 12 and the lower valve rod 8 is guaranteed.

And a valve seat 6 is arranged between the valve body 3 and the valve core 4 and used for supporting the valve core 4 at the fully closed position and providing sealing.

And springs 7 are fixedly arranged at the gaps between the tail end of the upper valve rod 2 and the top end of the lower valve rod 8 and the valve core 4 respectively so as to reduce static electricity generated in the switching process.

Under normal conditions, when the handle 1 or the upper valve rod 2 is normal and the valve needs to be opened and closed, the handle 1 only needs to be rotated, the upper valve rod 2 drives the valve core 4 to rotate together under the action of the handle 1, the communicating hole of the valve core 4 is staggered with the pipeline hole of the valve body, and the valve is closed; when the handle 1 or the upper valve rod 2 breaks down, the auxiliary hand wheel 5 is installed on the lower valve rod 8, the auxiliary hand wheel 5 is rotated by 90 degrees, the lower valve rod 8 drives the valve core 4 to rotate by 90 degrees together, the through hole of the valve core 4 is staggered with the pipeline hole of the valve body 3, and the valve is closed.

Example 1:

the design scheme can be used for general ball valves, lower valve rod and spheroid bolted connection, during the revolute pair hand wheel, drive the spheroid and rotate, stagger with the pipeline hole, and the valve is closed.

Example 2:

the scheme can also be used for a common butterfly valve, the lower valve rod is connected with the valve core through a bolt, when the auxiliary hand wheel is rotated, the valve core is driven to rotate and is staggered with the pipeline hole, and the valve is closed.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The utility model provides a small-bore multimode on-off valve, includes handle (1), valve body (3), case (4), goes up valve rod (2), lower valve rod (8), vice hand wheel of detachable (5), runs from opposite directions ring (9), case (4) upper end, lower extreme all are equipped with the recess, its characterized in that go up valve rod (2), lower valve rod (8) all with case (4) recess fixed connection, vice hand wheel of detachable (5) are installed on lower valve rod (8), lower valve rod (8) and valve body (3) inner peripheral clearance department install run from opposite directions ring (9).

2. Valve according to claim 1, characterized in that the lower valve stem (8) is provided with a limit pin (15).

3. Valve according to claim 1, characterized in that the lower stem (8) is connected to the valve body (3) by a shaft, the periphery of which is fitted with a bearing (10) in the clearance with the valve body (3).

4. The valve according to claim 3, characterized in that the periphery of the lower valve rod (8) is further provided with an O-shaped sealing ring (11) and a packing pad (12), a packing (13) is arranged in the packing pad (12), and a packing pressing sleeve (14) is further arranged at the lower end of the packing pad (12).

5. A valve according to claim 1 or 3, characterized in that a valve seat (6) is arranged between the valve body (3) and the valve core (4).

6. The valve according to claim 5, wherein the spring (7) is fixedly arranged at the gap between the tail end of the upper valve rod (2) and the top end of the lower valve rod (8) and the valve core (4).