CN211599702U

CN211599702U - Manual butterfly valve

Info

Publication number: CN211599702U
Application number: CN201922277810.2U
Authority: CN
Inventors: 朱琦
Original assignee: Chengdu Shanglv Technology Co ltd
Current assignee: Chengdu Shanglv Technology Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-29
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a manual butterfly valve, which comprises a valve body, a valve rod, a disc plate and a valve seat, wherein the bottom of the valve seat is provided with a disc-shaped clamping disc, a limit clamping strip is arranged around a quarter of the clamping disc, a limit clamping groove is arranged on one side wall surface of the limit clamping strip, one end of the valve rod is connected with a wrench, a limit groove is arranged in the wrench, two mutually symmetrical assembling gaps are arranged on two opposite side walls along the limit groove, a compression spring is arranged in the assembling gap, a limit block is arranged in the limit groove, sleeve clamping columns matched with the assembling gaps are arranged on two opposite side walls of the limit block, the sleeve clamping columns are clamped towards one end of the clamping disc connecting wrench along the spring, the length of the assembling gap is larger than that of the sleeve clamping columns, a convex block matched with the limit clamping groove is arranged on one side wall of the limit block, the limit block in the wrench and, the flow is regulated, the use is convenient, and the manufacturing cost is lower.

Description

Manual butterfly valve

Technical Field

The utility model relates to a pump valve technical field especially relates to a manual butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the purpose of opening and closing or adjusting is achieved, most of manual butterfly valves used in the current market cannot be fixed by a valve switch, the butterfly valves are inconvenient to use, and the butterfly valves cannot be controlled to open or close the butterfly valves at the same time to control the material flow of the butterfly valves.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, a manual butterfly valve capable of adjusting the material passing flow rate of the valve is provided.

The technical scheme of the utility model as follows:

a manual butterfly valve comprises a valve body, a valve rod penetrating the valve body, a pair of disc plates connected to the valve rod and a valve seat arranged at the bottom of the valve body, wherein a disc-shaped clamping disc is arranged at the bottom of the valve seat, a limiting clamping strip is arranged at the edge of the clamping disc around one quarter of the clamping disc, a continuous arc-shaped limiting clamping groove is arranged on one side wall surface of the limiting clamping strip away from the connecting clamping disc, matched through holes are formed in the valve body, the valve seat and the clamping disc, the valve rod is sleeved in the through hole and extends out of the bottom of the clamping disc, the valve rod extending out of the bottom of the clamping disc is connected with one end of a spanner, a limiting groove is formed in the spanner, two assembling gaps which are symmetrical to each other are formed in two side walls opposite to the limiting groove, a compression spring is arranged in each assembling gap, be provided with on the relative two sides lateral wall of stopper with assembly breach matched with cup joints the card post, cup joint the card post along the spring orientation the one end card of spanner is connected to the joint dish is put, assembly breach length is greater than cup joint card post length, be provided with on the stopper one side lateral wall with spacing draw-in groove matched with lug, the stopper of rotating the spanner in with the spanner rotates the block with spacing card strip and adjusts the rotatory opening size of dish board, the regulation flow, convenient to use just has lower manufacturing cost.

Furthermore, the limit clamping strip is provided with a stop block at the edge of the two ends, so that the limit block can be stopped to prevent the limit clamping strip from excessively separating from the limit clamping strip.

Preferably, two be provided with the sealing rubber strip on the border of dish board laminating valve body inside wall, the leakproofness of butterfly valve when can effectively guarantee the dish board and close.

Further, the assembly notch is provided with a plurality of stop rods on the two side wall surfaces far away from the laminating limiting block, so that the phenomenon that the limiting block cannot move due to the fact that springs in the limiting notches are in different positions is prevented.

The utility model adopts the above technical scheme, compare with prior art, have following technological effect:

1. this valve can adopt the spanner to drive the valve rod and carry out the volume that the interior circulation material of rotation regulation butterfly valve passes through the butterfly valve, only needs to rotate the spanner simultaneously, just can realize that the stopper in the spanner can rotate the block with spacing card strip and adjust the rotatory opening size of dish board, adjusts the flow, and convenient to use just has lower manufacturing cost.

2. The stopper can be blocked to the stopper and spacing, prevents that its skew from excessively breaking away from spacing card strip.

3. The sealing rubber strip can effectively ensure the tightness of the butterfly valve when the butterfly plate is closed.

4. The shelves pole prevents that the spring in the spacing breach from ectopic or popping out from the spacing breach, leads to the unable motion of stopper and can't take place with the mutual condition of putting of spacing card strip.

Drawings

FIG. 1 is a schematic view of an overall structure of a butterfly valve according to an embodiment of the present invention;

FIG. 2 is a diagram of a structure of a card disk in an embodiment of the present invention;

FIG. 3 is a top view of the wrench according to the embodiment of the present invention;

FIG. 4 is a side view of the wrench according to the embodiment of the present invention;

description of reference numerals:

1. a valve body; 2. a valve stem; 201. sealing the rubber strip; 3. a plate; 4. a valve seat; 5. a clamping disc; 501. Limiting clamping strips; 5011. a stopper; 502. a limiting clamping groove; 6. a wrench; 601. a limiting groove; 6011. a limiting block; 6012. a bump; 6013. limiting the clamp column; 602. assembling the notch; 6021. a compression spring; 6022. a stop lever.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings;

example 1:

as shown in fig. 1 to 4, a manual butterfly valve comprises a valve body 1, a valve rod 2 penetrating the valve body 1, a pair of disks 3 connected to the valve rod 2, and a valve seat 4 arranged at the bottom of the valve body 1, wherein a clamping disc 5 in a disc shape is arranged at the bottom of the valve seat 4, the valve seat 4 is fixed with the clamping disc 5 by bolts, a limiting clamping strip 501 is arranged around the edge of the quarter clamping disc 5, a continuous arc-shaped limiting clamping groove 502 is arranged on one side wall surface of the limiting clamping strip 501 away from the connecting clamping disc 5, matched through holes are arranged in the valve body 1, the valve seat 4 and the clamping disc 5, sealing rings are arranged on the through holes, the valve rod 2 is sleeved in the through holes and extends out of the bottom of the clamping disc 5, the sealing rings can prevent the butterfly valve from leaking from the through holes, one end of the valve rod 2 extending out of the bottom of the clamping disc 5 and connected with a wrench 6 is fixed by bolts, the wrench 6, a limiting groove 601 is arranged in the wrench 6, two mutually symmetrical assembling notches 602 are arranged on two opposite side walls along the limiting groove 601, a compression spring 6021 is transversely arranged in the assembling notch 602, a limiting block 6011 is arranged in the limiting groove 601, sleeve clamping columns matched with the assembling notches 602 are arranged on two opposite side walls of the limiting block 6011, the two side walls of the limiting block 6011 are tightly attached to the two side walls of the limiting groove 601, the sleeve clamping columns are in a long strip rod shape and are positioned in the assembling notches 602, the sleeve clamping columns are clamped at the right side of the spring, the spring presses the sleeve clamping columns to enable the limiting block 6011 to move towards the right side in an abutting mode, the length of the assembling notches 602 is larger than that of the sleeve clamping columns, a convex block 6012 matched with the limiting clamping groove 502 is arranged on one side wall of the limiting block 6011, the convex block 6012 of the limiting block 6011 slides out of the limiting clamping groove 502, when a butterfly valve is opened and closed, meanwhile, a bump 6012 of the limiting block 6011 in the wrench 6 slides in the limiting clamping groove 502 of the limiting clamping strip 501, and the bump 6012 can be slidably clamped in different limiting clamping grooves 502 according to different flow rates.

Example 2:

in one embodiment, as shown in fig. 1 and fig. 2, vertically disposed stoppers 5011 are disposed at edges of two ends of the position-limiting locking strip 501, when a protrusion 6012 on the stopper 6011 abuts against the stoppers 5011 at the two ends, the disc 3 is fully opened or closed, and at the same time, the stopper 6011 can be blocked by the stopper 5011 to prevent the stopper 6011 from being shifted to excessively separate from the position-limiting locking strip 501.

Example 3:

in one embodiment, as shown in fig. 1, the sealing rubber strips 201 are arranged on the edges of the two disks 3 attached to the inner side wall of the valve body 1, so that the tightness of the butterfly valve when the disks 3 are closed can be effectively ensured.

Example 4:

in one embodiment, as shown in fig. 4, three stop rods are respectively disposed on two side wall surfaces of the assembly notches 602 on two sides of the limiting groove 601 of the wrench 6, which are far away from the attaching limiting block 6011, so as to prevent the limiting block 6011 from being unable to move or being unable to be abutted and clamped with the limiting clamping strip 501 due to spring dislocation in the limiting notches.

The above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.

Claims

1. A manual butterfly valve comprises a valve body, a valve rod penetrating the valve body, a pair of disc plates connected to the valve rod and a valve seat arranged at the bottom of the valve body, and is characterized in that a disc-shaped clamping disc is arranged at the bottom of the valve seat, a limiting clamping strip is arranged around one fourth of the edge of the clamping disc, a continuous arc-shaped limiting clamping groove is arranged on one side wall surface of the limiting clamping strip away from the connecting clamping disc, matched through holes are arranged in the valve body, the valve seat and the clamping disc, the valve rod is sleeved in the through hole and extends out of the bottom of the clamping disc, the valve rod extending out of the bottom of the clamping disc is connected with one end of a spanner, a limiting groove is arranged in the spanner, two symmetrical assembling gaps are arranged on two side walls opposite to each other along the limiting groove, a compression spring is arranged in the assembling gap, and a limiting block is arranged, be provided with on the relative two sides lateral wall of stopper with assembly breach matched with cup joints the card post, cup joint the card post along the spring orientation the one end card of spanner is connected to the joint dish is put, assembly breach length is greater than cup joint card post length, be provided with on the stopper one side lateral wall with spacing draw-in groove matched with lug.

2. A manual butterfly valve according to claim 1, characterized in that: and the limit clamping strips are provided with limit blocks at the edges of the two ends.

3. A manual butterfly valve according to claim 1, characterized in that: and two sealing rubber strips are arranged on the edges of the inner side walls of the disc plates attached to the valve body.

4. A manual butterfly valve according to claim 1, characterized in that: and a plurality of stop rods are arranged on the two side wall surfaces of the assembling gap far away from the laminating limiting block.