CN219888774U - Impact-resistant plug valve - Google Patents

Abstract

The utility model discloses an impact-resistant plug valve, which comprises a valve body, an inlet pipe, an output pipe and a plurality of groups of buffer sheets, wherein a valve core is arranged in the valve body, a first connecting flange is fixedly arranged on the side surface of the inlet pipe, a channel is arranged in the output pipe, a flow channel is arranged in the inlet pipe, an output flange is fixedly arranged at the end part of the output pipe, and an operating mechanism is arranged on the side surface of the first connecting flange; according to the utility model, through the designed operating mechanism, the connecting pipe can be conveniently detached and replaced when the buffer sheet is damaged and worn for a long time, so that the buffer sheet is detached and replaced, the condition that the medium continuously impacts the inner wall of the flow channel and the valve core when the buffer sheet is worn and damaged is avoided, the impact resistance of the buffer sheet to the medium is stable, the impact resistance of the inner wall of the flow channel and the valve core is improved, and the service performance of the plug valve is improved.

Description

Impact-resistant plug valve

Technical Field

The utility model belongs to the technical field of plug valves, and particularly relates to an impact-resistant plug valve.

Background

A plug valve is often used in an industrial pipeline, and is an important valve for controlling medium flow on the industrial pipeline, the plug valve is a rotary valve in a shape of a closing member or a plunger, a passage opening on the plug is communicated with or separated from a passage opening on a valve body by rotating 90 degrees, a valve core of the plug valve can be in a cylindrical shape or a conical shape, and Chinese patent application number 201920811625.4 discloses an impact-resistant plug valve for the industrial valve.

When the existing plug valve is used, the buffer sheet is welded and fixed on the flow channel, when a medium enters the plug valve, the medium can generate impact force to the buffer sheet, turbulent flow is formed by the medium when the buffer sheet is used, the buffer sheet can be damaged and worn after long-term impact of the medium to the buffer sheet after long-term use, at this time, the buffer sheet can not be detached and replaced, the buffer sheet can be reduced to buffer the medium, the impact force of the medium to the inner wall of the flow channel and the valve core can be gradually increased, and the service performance of the plug valve is affected.

Disclosure of Invention

The utility model aims to provide an impact-resistant plug valve, which solves the problems that when the conventional plug valve is used, after long-term impact of a medium on a buffer sheet, the buffer sheet is damaged and worn, and the buffer performance of the buffer sheet on the medium is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an impact resistance type plug valve, includes valve body, admission line, output tube and multiunit buffer piece, the inside of valve body is provided with the case, the fixed flange one that is provided with in side of admission line, the inside of output tube is provided with the passageway, the inside of admission line is provided with the runner, the fixed output flange that is provided with in end of output tube, flange one's side is provided with operating device, operating device includes coupling assembling and change subassembly, change the subassembly and include the connecting pipe, the buffer piece is fixed the inside of connecting pipe, the fixed flange that is provided with in one side of connecting pipe, the fixed external screw thread ring that is provided with of opposite side of connecting pipe.

Preferably, the connecting assembly comprises an internal thread ring and a connecting flange II, wherein the internal thread ring is fixed on the side face of the connecting flange II, and the connecting flange II is fixedly connected with the connecting flange I through a plurality of groups of bolts I.

Preferably, a fixing ring is fixedly arranged on the inner wall of the internal thread ring, and a sealing ring is fixedly arranged on the side face of the fixing ring.

Preferably, the inner thread ring is connected with the outer thread ring through thread screwing, and the side surface of the outer thread ring is in contact with the surface of the sealing ring.

Preferably, the top and the bottom of the internal thread ring are both fixedly provided with a mounting plate, a screw hole is formed in the mounting plate, a T-shaped screw rod is arranged in the screw hole, and the working end of the T-shaped screw rod extends to the surface of the connecting pipe.

Preferably, the side of entering flange the output flange all is provided with protection machanism, protection machanism includes the protection casing, the side of protection casing is fixed to be provided with ring magnet, ring magnet with the entering flange the output is connected through the absorption between the flange.

Preferably, a valve cover is arranged at the top of the valve body, and the valve cover is fixedly connected with the valve body through a plurality of groups of bolts II.

Preferably, a valve rod is arranged on the valve cover, and the bottom of the valve rod is fixedly connected with the valve core.

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

(1) According to the utility model, through the designed operating mechanism, the connecting pipe can be conveniently detached and replaced when the buffer sheet is damaged and worn for a long time, so that the buffer sheet is detached and replaced, the condition that the medium continuously impacts the inner wall of the flow channel and the valve core when the buffer sheet is worn and damaged is avoided, the impact resistance of the buffer sheet to the medium is stable, the impact resistance of the inner wall of the flow channel and the valve core is improved, and the service performance of the plug valve is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of an operating mechanism according to the present utility model;

FIG. 3 is a schematic cross-sectional view of the connection tube, externally threaded ring and internally threaded ring of the present utility model;

in the figure: 1. a protective cover; 2. a ring magnet; 3. entering a flange; 4. a mounting plate; 5. a T-shaped screw; 6. a valve core; 7. an output flange; 8. an output pipe; 9. a valve body; 10. a valve stem; 11. an inlet tube; 12. a first connecting flange; 13. an internally threaded ring; 14. a connecting pipe; 15. a second connecting flange; 16. a buffer sheet; 17. an external threaded ring; 18. a fixing ring; 19. and (3) sealing rings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-3, the present utility model provides a technical solution: an impact-resistant plug valve comprises a valve body 9, an inlet pipe 11, an outlet pipe 8 and a plurality of groups of buffer sheets 16, wherein the buffer sheets 16 can enable media passing through a flow channel to form turbulence when in use, so that impact force of the media on the inner wall of the flow channel and a valve core 6 can be reduced, the valve core 6 is arranged in the valve body 9, a first connecting flange 12 is fixedly arranged on the side surface of the inlet pipe 11, a channel is arranged in the outlet pipe 8, the flow channel is arranged in the inlet pipe 11, an outlet flange 7 is fixedly arranged at the end part of the outlet pipe 8, an operating mechanism is arranged on the side surface of the first connecting flange 12, the operating mechanism comprises a connecting assembly and a replacing assembly, the replacing assembly comprises a connecting pipe 14, the buffer sheets 16 are fixed in the connecting pipe 14 when in use, the buffer sheets 16 are fixed in the connecting pipe 14, an inlet flange 3 is fixedly arranged on one side of the connecting pipe 14, the other side of the connecting pipe 14 is fixedly provided with an external thread ring 17, the connecting assembly comprises an internal thread ring 13 and a connecting flange II 15, the internal thread ring 13 is fixed on the side surface of the connecting flange II 15, the connecting flange II 15 and the connecting flange I12 are fixedly connected through a plurality of groups of bolts I, the connecting flange II 15 can be disassembled and assembled through the bolts I when in use, the inner wall of the internal thread ring 13 is fixedly provided with a fixed ring 18, the side surface of the fixed ring 18 is fixedly provided with a sealing ring 19, the sealing ring 19 can play a sealing role when in use, the internal thread ring 13 and the external thread ring 17 are connected through screw threads in a screwing way, the side surface of the external thread ring 17 is contacted with the surface of the sealing ring 19, the top and the bottom of the internal thread ring 13 are fixedly provided with a mounting plate 4, the inside of the mounting plate 4 is provided with screw holes, and the T-shaped screw 5 is in screwed connection with the screw holes through screw threads when in use, the inside of screw is provided with T shape screw rod 5, and the work end of T shape screw rod 5 extends to the surface of connecting pipe 14, through the operating device of design, be convenient for after a long time use when buffer 16 produces damage and wearing and tearing can be with connecting pipe 14 being dismantled and change, and then change buffer 16 is dismantled, avoid when buffer 16 appears wearing and tearing and damage the condition that the medium continues to produce the impact to inner wall and the case 6 of runner, make buffer 16 stable to the shock resistance of medium, the shock resistance to the inner wall of runner and case 6 has been promoted, the performance of plug valve has been improved.

In this embodiment, preferably, the side of entering flange 3, output flange 7 all is provided with protection machanism, protection machanism includes protection casing 1, the fixed ring magnet 2 that is provided with in side of protection casing 1, through adsorbing between ring magnet 2 and entering flange 3, the output flange 7 and be connected, entering flange 3, output flange 7 are the iron material when using, can protect outside entering flange 3 and output flange 7 when being convenient for remove or carrying the plug valve through the protection machanism of design, prevent that outside dust from entering into the inside of plug valve, be convenient for use.

In this embodiment, preferably, a valve cover is disposed on the top of the valve body 9, and the valve cover is fixedly connected with the valve body 9 through a plurality of groups of bolts two.

In this embodiment, preferably, the valve rod 10 is disposed on the valve cover, and the bottom of the valve rod 10 is fixedly connected with the valve core 6.

The working principle and the using flow of the utility model are as follows:

when the utility model is used, the connecting flange II 15 on the operating mechanism is fixed on the connecting flange I12 through a plurality of groups of bolts I, at the moment, the medium inlet pipe is arranged on the inlet flange 3, the medium outlet pipe is arranged on the output flange 7, then when the medium enters the valve body 9 from the connecting pipe 14, the medium is buffered through the buffer sheet 16, when the buffer sheet 16 is worn and damaged after being used for a long time, the buffer sheet 16 is replaced, the medium inlet pipe on the inlet flange 3 is firstly detached, then the T-shaped screw 5 is outwards rotated, the working end of the T-shaped screw 5 is separated from the surface of the connecting pipe 14, then the connecting pipe 14 is outwards rotated, the external thread ring 17 is driven to rotate, then the external thread ring 17 is separated from the internal part of the internal thread ring 13, the connecting pipe 14 can be detached, then the connecting pipe 14 is replaced according to the reverse principle operation, and the buffer sheet 16 is replaced;

when the plug valve is moved or carried, the ring magnet 2 on the protective cover 1, the inlet flange 3 and the output flange 7 are adsorbed together, so that protection can be carried out, and when the plug valve is used, the plug valve can be detached according to the reverse principle.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides an impact resistance type plug valve, includes valve body (9), admission pipe (11), output tube (8) and multiunit buffer piece (16), the inside of valve body (9) is provided with case (6), the fixed flange one (12) that is provided with in side of admission pipe (11), the inside of output tube (8) is provided with the passageway, the inside of admission pipe (11) is provided with the runner, the fixed output flange (7) that is provided with of the tip of output tube (8), its characterized in that: the side of flange one (12) is provided with operating device, operating device includes coupling assembling and changes the subassembly, it includes connecting pipe (14) to change the subassembly, buffer sheet (16) are fixed the inside of connecting pipe (14), one side of connecting pipe (14) is fixed to be provided with and gets into flange (3), the opposite side of connecting pipe (14) is fixed to be provided with external screw thread ring (17).

2. The impact resistant plug valve of claim 1, wherein: the connecting assembly comprises an internal thread ring (13) and a connecting flange II (15), wherein the internal thread ring (13) is fixed on the side face of the connecting flange II (15), and the connecting flange II (15) is fixedly connected with the connecting flange I (12) through a plurality of groups of bolts I.

3. An impact resistant plug valve according to claim 2, wherein: the inner wall of the internal thread ring (13) is fixedly provided with a fixed ring (18), and the side surface of the fixed ring (18) is fixedly provided with a sealing ring (19).

4. An impact resistant plug valve as claimed in claim 3, wherein: the inner threaded ring (13) is connected with the outer threaded ring (17) through threaded screwing, and the side surface of the outer threaded ring (17) is in contact with the surface of the sealing ring (19).

5. The impact resistant plug valve of claim 4, wherein: the top and the bottom of internal thread ring (13) are all fixed and are provided with mounting panel (4), screw has been seted up to the inside of mounting panel (4), the inside of screw is provided with T shape screw rod (5), just the work end of T shape screw rod (5) extends to the surface of connecting pipe (14).

6. The impact resistant plug valve of claim 1, wherein: the flange structure is characterized in that the side faces of the inlet flange (3) and the output flange (7) are respectively provided with a protection mechanism, each protection mechanism comprises a protection cover (1), the side faces of the protection covers (1) are fixedly provided with annular magnets (2), and the annular magnets (2) are connected with the inlet flange (3) and the output flange (7) through adsorption.

7. The impact resistant plug valve of claim 1, wherein: the top of valve body (9) is provided with the valve gap, the valve gap with pass through multiunit bolt two fixed connection between valve body (9).

8. The impact resistant plug valve of claim 7, wherein: the valve cover is provided with a valve rod (10), and the bottom of the valve rod (10) is fixedly connected with the valve core (6).