CN216895817U

CN216895817U - Novel manual butterfly valve

Info

Publication number: CN216895817U
Application number: CN202123019636.5U
Authority: CN
Inventors: 邵田田; 张朝阳
Original assignee: Jiangsu Zhongdish Valve Co ltd
Current assignee: Jiangsu Zhongdish Valve Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-07-05
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses a novel manual butterfly valve, relates to the technical field of handle type butterfly valves, and aims to solve the problem that liquid conveyed inside the existing handle type butterfly valve flows back when the existing handle type butterfly valve is used. The up end of first butterfly valve body is provided with the connecting block, the up end of connecting block is provided with the threaded rod, and the one end of threaded rod runs through and extends to the inside of connecting block, the inside of first butterfly valve body and second butterfly valve body is provided with interior valve body, the inside of interior valve body is provided with the central fixed rod body, the both sides of the central fixed rod body all are provided with the shielding plate, and the shielding plate is provided with two, two the shielding plate all rotates with the central fixed rod body to be connected, two the outer wall both sides of shielding plate all are provided with the anchor strut, and the anchor strut is provided with a plurality of, a plurality of the both ends of anchor strut respectively with shielding plate and anchor strut fixed connection, two the inside of shielding plate up end is provided with the second and reserves the hole groove, and the second reserves the hole groove and is provided with two.

Description

Novel manual butterfly valve

Technical Field

The utility model relates to the technical field of handle type butterfly valves, in particular to a novel manual butterfly valve.

Background

A handle type butterfly valve is a simple tool which is made of materials such as gray cast iron, nodular cast iron, cast steel, aluminum alloy, stainless steel and the like and is used for the fields of sulfur burning, chemical engineering, petrifaction, smelting, medicine and the like in a gas pipeline and a sulfur acid making system in the sulfuric acid industry. The butterfly plate of the manual butterfly valve is arranged in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis at a rotation angle of 0-90 degrees, and when the disc-shaped butterfly plate rotates to 90 degrees, the valve is in a full-open state. The butterfly valve has simple structure, small volume and light weight, and is composed of a few parts. And the valve can be quickly opened and closed only by rotating 90 degrees, the operation is simple, and meanwhile, the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance to the flow of media through the valve body, and therefore the pressure drop across the valve is small, and better flow control characteristics are achieved. The butterfly valve has two sealing types of elastic sealing and metal sealing. An elastic sealing valve is adopted, and a sealing ring can be embedded on the valve body or attached to the periphery of the butterfly plate; valves employing metal seals generally have a longer life than valves employing elastomeric seals.

However, when the existing handle type butterfly valve is used, the liquid conveyed inside has the problem of backflow; therefore, the existing requirements are not met, and a novel manual butterfly valve is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel manual butterfly valve, which solves the problem that liquid conveyed inside the existing handle type butterfly valve in the background art flows back when in use.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel manual butterfly valve comprises a first butterfly valve body and a second butterfly valve body, wherein a connecting block is arranged on the upper end face of the first butterfly valve body, a threaded rod is arranged on the upper end face of the connecting block, one end of the threaded rod penetrates through and extends into the connecting block, inner valve bodies are arranged inside the first butterfly valve body and the second butterfly valve body, a central fixing rod body is arranged inside the inner valve body, two shielding plates are arranged on two sides of the central fixing rod body and are rotatably connected with the central fixing rod body, reinforcing rods are arranged on two sides of the outer wall of each of the two shielding plates and are provided with a plurality of reinforcing rods, two ends of the plurality of reinforcing rods are fixedly connected with the shielding plates and the reinforcing rods respectively, a second reserved hole groove is arranged inside the upper end face of each of the two shielding plates, and two second reserved hole grooves are arranged, two the second preformed hole groove all forms with the shielding plate integral type, the one end of threaded rod is provided with the second connecting plate, the both sides of terminal surface all are provided with spacing buckle connecting rod under the second connecting plate, and just spacing buckle connecting rod is provided with two, two spacing buckle connecting rod all with second connecting plate fixed connection.

Preferably, the outside of threaded rod one end is provided with the end of consolidating, the other end of threaded rod is provided with twist grip, and the other end and twist grip fixed connection of threaded rod.

Preferably, one side of first butterfly valve body and second butterfly valve body outer wall all is provided with first connecting plate, and first connecting plate is provided with four, four first connecting plate all with first butterfly valve body and second butterfly valve body welded connection, first butterfly valve body passes through hex bolts and second butterfly valve body threaded connection, and hex bolts is provided with two.

Preferably, the top of first butterfly valve body outer wall both sides all is provided with connects the dead lever, and connects the dead lever and be provided with two, two connect the dead lever all with first butterfly valve body welded connection, two the inside of connecting the dead lever all is provided with first preformed hole groove, and first preformed hole groove is provided with two, two first preformed hole groove all forms with being connected the dead lever integral type.

Preferably, the circle of inner valve body inner wall all is provided with the recess, and recess and inner valve body integral type form.

Preferably, two the one end of shielding plate all is provided with first rubber seal, and first rubber seal is provided with two, two first rubber seal all with shielding plate fixed connection, two the inner wall in second preformed hole groove all is provided with second rubber seal, and the inner wall hot melt of second rubber seal and second preformed hole groove is connected.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the arrangement of the threaded rod, the connecting block, the limiting buckle connecting rod, the shielding plates and the second reserved hole grooves, when the butterfly valve is closed, the limiting buckle connecting rod is driven by the rotation of the threaded rod to extend into the second reserved hole grooves in the upper end surfaces of the two shielding plates, so that the shielding plates are effectively fixed in position, when liquid needs to circulate, the butterfly valve is operated reversely, and the shielding plates rotate in a single direction, so that the problem that the liquid conveyed inside the butterfly valve flows back when the existing handle type butterfly valve is used can be solved.

2. Through the anchor strut that sets up between the shielding plate and the fixed body of rod of center, can effectually strengthen the device pressure-bearing degree when receiving inside liquid pressure, the maximize provides the supporting role, and the operation of guarantee baffle is used.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of a partial structure of the limit buckle connection rod of the present invention.

Fig. 3 is a schematic top view of the central fixing rod of the present invention.

Fig. 4 is a partial structural schematic diagram of the inner valve body of the utility model.

In the figure: 1. a first butterfly valve body; 2. a second butterfly valve body; 3. a first connecting plate; 4. connecting blocks; 5. reinforcing the end; 6. a threaded rod; 7. rotating the handle; 8. an inner valve body; 9. connecting a fixed rod; 10. a first preformed hole groove; 11. a central fixed rod body; 12. a shielding plate; 13. a reinforcing rod; 14. a second connecting plate; 15. a limiting buckle connecting rod; 16. a groove; 17. a first rubber seal ring; 18. a second preformed hole groove; 19. a second rubber seal ring; 20. a hexagon bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, an embodiment of the present invention is shown: a novel manual butterfly valve comprises a first butterfly valve body 1 and a second butterfly valve body 2, wherein the upper end face of the first butterfly valve body 1 is provided with a connecting block 4, the upper end face of the connecting block 4 is provided with a threaded rod 6, one end of the threaded rod 6 penetrates through and extends into the connecting block 4, the first butterfly valve body 1 and the second butterfly valve body 2 are internally provided with inner valve bodies 8, the inner valve bodies 8 are internally provided with a central fixed rod body 11, two sides of the central fixed rod body 11 are respectively provided with a shielding plate 12, the two shielding plates 12 are respectively rotatably connected with the central fixed rod body 11, two sides of the outer wall of the two shielding plates 12 are respectively provided with a plurality of reinforcing rods 13, two ends of the plurality of reinforcing rods 13 are respectively fixedly connected with the shielding plates 12 and the reinforcing rods 13, the inner part of the upper end faces of the two shielding plates 12 is provided with a second reserved hole groove 18, and the second reserved hole grooves 18 are provided with two reinforcing rods 13, two second preformed hole grooves 18 all form with shielding plate 12 integral type, and the one end of threaded rod 6 is provided with second connecting plate 14, and the both sides of terminal surface all are provided with spacing buckle connecting rod 15 under the second connecting plate 14, and spacing buckle connecting rod 15 is provided with two, two spacing buckle connecting rods 15 all with second connecting plate 14 fixed connection.

Furthermore, the outside of one end of the threaded rod 6 is provided with a reinforcing end 5, the other end of the threaded rod 6 is provided with a rotating handle 7, and the other end of the threaded rod 6 is fixedly connected with the rotating handle 7.

Further, one side of the outer walls of the first butterfly valve body 1 and the second butterfly valve body 2 is provided with four first connecting plates 3, the four first connecting plates 3 are connected with the first butterfly valve body 1 and the second butterfly valve body 2 in a welded mode, the first butterfly valve body 1 is connected with the second butterfly valve body 2 in a threaded mode through the hexagon bolts 20, the hexagon bolts 20 are arranged, and the hexagon bolts 20 are arranged, so that the installation or the disassembly is convenient.

Further, the top of 1 outer wall both sides of first butterfly valve body all is provided with connects dead lever 9, and connects dead lever 9 and be provided with two, two connect dead lever 9 all with 1 welded connection of first butterfly valve body, two inside of connecting dead lever 9 all are provided with first preformed hole groove 10, and first preformed hole groove 10 is provided with two, two first preformed hole grooves 10 all with be connected dead lever 9 integral type and form, the integral type forms the probability that reduces the fracture surface and produce.

Furthermore, a groove 16 is formed in one circle of the inner wall of the inner valve body 8, the groove 16 and the inner valve body 8 are integrally formed, and the probability of generating a fracture surface is reduced due to the integral formation.

Further, the one end of two shielding plates 12 all is provided with first rubber seal 17, and first rubber seal 17 is provided with two, two first rubber seal 17 all with shielding plate 12 fixed connection, the inner wall of two second preformed hole grooves 18 all is provided with second rubber seal 19, and the inner wall hot melt of second rubber seal 19 and second preformed hole groove 18 is connected, the setting of second rubber seal 19 for frictional force increases, reduces the probability that drops.

The working principle is as follows: during the use, be connected the device with the pipeline, this pipeline need not deepen downwards, can drive spacing buckle connecting rod 15 and stretch into the inside second preformed hole groove 18 of two shielding plate 12 up end, thereby effectually carry out the fixed of position to shielding plate 12, when needing to carry out the circulation of liquid, then reverse operation, with spacing buckle connecting rod 15 follow second preformed hole groove 18 in the separation can, and the direction of rotation of this shielding plate 12, it is the folk prescription to rotating, so when using, can not appear, the backward flow phenomenon of liquid.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Claims

1. The utility model provides a novel manual butterfly valve, includes first butterfly valve body (1) and second butterfly valve body (2), its characterized in that: the upper end face of the first butterfly valve body (1) is provided with a connecting block (4), the upper end face of the connecting block (4) is provided with a threaded rod (6), one end of the threaded rod (6) penetrates through and extends into the connecting block (4), the first butterfly valve body (1) and the second butterfly valve body (2) are internally provided with inner valve bodies (8), the inner portion of each inner valve body (8) is provided with a central fixing rod body (11), two sides of each central fixing rod body (11) are respectively provided with a shielding plate (12), the number of the shielding plates (12) is two, the two shielding plates (12) are rotatably connected with the central fixing rod body (11), reinforcing rods (13) are arranged on two sides of the outer wall of the two shielding plates (12), the number of the reinforcing rods (13) are respectively fixedly connected with the shielding plates (12) and the reinforcing rods (13), two the inside of shielding plate (12) up end is provided with second preformed hole groove (18), and second preformed hole groove (18) is provided with two, two second preformed hole groove (18) all forms with shielding plate (12) integral type, the one end of threaded rod (6) is provided with second connecting plate (14), the both sides of terminal surface all are provided with spacing buckle connecting rod (15) under second connecting plate (14), and spacing buckle connecting rod (15) are provided with two, two spacing buckle connecting rod (15) all with second connecting plate (14) fixed connection.

2. A new type manual butterfly valve according to claim 1, characterized in that: the outside of threaded rod (6) one end is provided with reinforced end (5), the other end of threaded rod (6) is provided with twist grip (7), and the other end and twist grip (7) fixed connection of threaded rod (6).

3. A new type manual butterfly valve according to claim 1, characterized in that: one side of first butterfly valve body (1) and second butterfly valve body (2) outer wall all is provided with first connecting plate (3), and first connecting plate (3) are provided with four, four first connecting plate (3) all with first butterfly valve body (1) and second butterfly valve body (2) welded connection, first butterfly valve body (1) is through hex bolts (20) and second butterfly valve body (2) threaded connection, and hex bolts (20) are provided with two.

4. A novel manual butterfly valve according to claim 1, characterized in that: the top of first butterfly valve body (1) outer wall both sides all is provided with connects dead lever (9), and connects dead lever (9) and be provided with two, two connect dead lever (9) all with first butterfly valve body (1) welded connection, two the inside of connecting dead lever (9) all is provided with first preformed hole groove (10), and first preformed hole groove (10) is provided with two, two first preformed hole groove (10) all forms with being connected dead lever (9) integral type.

5. A novel manual butterfly valve according to claim 1, characterized in that: the inner wall of the inner valve body (8) is provided with a groove (16), and the groove (16) and the inner valve body (8) are integrally formed.

6. A novel manual butterfly valve according to claim 1, characterized in that: two the one end of shielding plate (12) all is provided with first rubber seal (17), and first rubber seal (17) is provided with two, two first rubber seal (17) all with shielding plate (12) fixed connection, two the inner wall of second preformed hole groove (18) all is provided with second rubber seal (19), and the inner wall hot melt of second rubber seal (19) and second preformed hole groove (18) is connected.