CN219177001U

CN219177001U - Four-way reversing plug valve

Info

Publication number: CN219177001U
Application number: CN202223517382.4U
Authority: CN
Inventors: 项忠和; 徐慧娜; 方晓群; 旷理同; 陈洪
Original assignee: Power Construction Valve Lishui Co ltd
Current assignee: Power Construction Valve Lishui Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-13
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a four-way reversing plug valve which comprises a valve body, wherein a valve rod is arranged in the valve body, the upper end of the valve rod is fixedly connected with a control rod, the outer surface of the upper end of the valve rod is fixedly sleeved with a sealing ring, the lower end of the valve rod is fixedly connected with a valve ball, the valve ball is provided with a circulation groove, the surface of the valve ball is provided with a sealing gasket, the valve ball is provided with a reinforced sealing structure, the reinforced sealing structure comprises a supporting plate, a supporting rod, a circular groove and a supporting spring, the supporting plate is connected with the inside of the sealing gasket, the supporting rod is fixedly connected with the inside of the supporting plate, the surface of the valve ball is provided with the circular groove, and the four-way reversing plug valve has the function of guaranteeing the tightness of the valve ball, meanwhile, the control structure can guarantee the rotating angle of the control rod, so that a user can correctly rotate the valve ball to an opening or closing position.

Description

Four-way reversing plug valve

Technical Field

The utility model relates to the field of plug valves, in particular to a four-way reversing plug valve.

Background

The plug valve is a valve for realizing opening or closing, and is widely applied to oilfield exploitation, transportation and refining equipment, and is also widely applied to petrochemical industry, chemical industry, coal gas, natural gas, liquefied petroleum gas, heating and ventilation industries and general industries.

At present, when some four-way plug valves existing in the market are used for a long time, valve ball abrasion is easy to occur, sealing performance is reduced, oil leakage phenomenon occurs, four-way plug valves are provided with four through grooves for flowing media, an existing valve body control rod is not provided with a control structure, excessive rotation is easy to occur, sealing is not tight, or the four-way plug valves are not rotated in place, circulation blocking phenomenon is caused, and use is not facilitated.

Disclosure of Invention

The utility model aims to provide a four-way reversing plug valve, which solves the problems that the sealing performance is reduced, oil leakage phenomenon occurs and the phenomenon of excessive rotation and out-of-place rotation occurs when a valve body is used due to long-time use and abrasion of a ball valve

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a four-way reversing plug valve, includes the valve body, the inside of valve body is provided with the valve rod, the upper end fixedly connected with control rod of valve rod, the upper end fixed surface of valve rod has cup jointed the sealing washer, the lower extreme fixedly connected with valve ball of valve rod, the valve ball is provided with the circulation groove, the surface of valve ball is provided with sealed the pad, the valve ball is provided with reinforcing seal structure, reinforcing seal structure includes backup pad, bracing piece, circular slot and supporting spring, the internally connected with backup pad of sealed pad, the inside fixedly connected with bracing piece of backup pad, the surface of valve ball is provided with the circular slot, the end and the circular slot sliding connection of bracing piece, the inside sliding connection of circular slot has supporting spring, the lower extreme of control rod is provided with control structure, control structure includes montant, reset spring, stopper, lug and draw-in groove, the inside sliding connection of lower extreme inside of montant has reset spring, the inside sliding connection of lower extreme inside of montant has the stopper, the inside sliding connection of lower extreme has the stopper, the inside lug is provided with the lug on the lug.

Preferably, two sealing rings are arranged and are rotationally connected with the valve body, and the sealing rings have the function of sealing a gap at the joint of the valve rod and the upper end of the valve body.

Preferably, the valve ball is arranged at the communication part of the four through grooves of the valve body, and has the function of sealing and blocking the four through grooves of the valve body.

Preferably, the joint position of lug sets up to spherically, through the setting of spherical lug, has the effect that makes things convenient for lug and draw-in groove joint, perhaps lug and draw-in groove break away from.

Preferably, the clamping grooves are arranged in three, the three clamping grooves are spaced 45 degrees in pairs, the three clamping grooves are respectively a horizontal clamping groove, an inclined clamping groove and a vertical clamping groove, the horizontal clamping groove is a transverse flow switch of the valve body, the inclined clamping groove is a closing switch of the valve body, and the vertical clamping groove is a vertical flow switch of the valve body.

Compared with the prior art, the utility model has the advantages that:

1. the ball valve has the advantages that the sealing structure is reinforced, and the supporting sealing gasket is always in contact with the inner wall of the valve body, so that the sealing performance of the ball valve is ensured, and the gap between the ball valve and the valve body is prevented from generating oil leakage.

2. The utility model has the function of limiting and reminding the angle of the rotary control rod through the arrangement of the protruding blocks in the control structure and the three clamping grooves, so that the phenomenon of excessive rotation or insufficient rotation can not occur when a user uses the valve body by rotating the control rod.

Drawings

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

FIG. 2 is a top view of the internal structure of the valve body of the present utility model;

FIG. 3 is a top view of the control structure of the present utility model;

FIG. 4 is an enlarged view at A of FIG. 1;

FIG. 5 is an enlarged view at B of FIG. 2;

fig. 6 is an enlarged view at C of fig. 3.

The reference numerals in the figures illustrate:

the valve comprises a valve body 1, a valve rod 2, a control rod 3, a sealing ring 4, a valve ball 5, a circulating groove 6, a sealing gasket 7, a reinforcing sealing structure 8, a supporting plate 9, a supporting rod 10, a circular groove 11, a supporting spring 12, a control structure 13, a vertical rod 14, a return spring 15, a limiting block 16, a lug 17 and a clamping groove 18.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1

Referring to fig. 1-6, a four-way reversing plug valve in the drawings comprises a valve body 1, wherein a valve rod 2 is arranged in the valve body 1, a control rod 3 is fixedly connected to the upper end of the valve rod 2, the control rod 3 has the function of controlling the direction of a circulation groove 6 of a valve ball 5, so that the valve body 1 is opened and the valve body 1 is closed, a sealing ring 4 is fixedly sleeved on the outer surface of the upper end of the valve rod 2, the sealing ring 4 has the function of sealing a gap at the joint of the valve rod 2 and the valve body 1, so that the tightness of the whole valve body 1 is ensured, the lower end of the valve rod 2 is fixedly connected with the valve ball 5, the valve ball 5 has the function of sealing four channels in the valve body 1, the valve ball 5 is provided with the circulation groove 6, the surface of the valve ball 5 is provided with a sealing gasket 7, the valve ball 5 is provided with a reinforced sealing structure 8, the reinforced sealing structure 8 comprises a supporting plate 9, a supporting rod 10, a circular groove 11 and a supporting spring 12, the supporting spring 12 is in a compressed state and has the function of pushing the supporting plate 9 outwards, so that the supporting plate 7 is pushed outwards, the sealing gasket 7 is always attached to the inner wall of the valve body 1, the tightness of the valve ball 5 is guaranteed, the supporting plate 9 is connected to the inside of the sealing gasket 7, the supporting rod 10 is fixedly connected to the inside of the supporting plate 9, the circular groove 11 is arranged on the surface of the valve ball 5, the tail end of the supporting rod 10 is in sliding connection with the circular groove 11, the supporting spring 12 is in sliding connection with the inside of the circular groove 11, the supporting spring 12 belongs to the compression spring, the control structure 13 is arranged at the lower end of the control rod 3, the control structure 13 comprises a vertical rod 14, a reset spring 15, a limiting block 16, a lug 17 and a clamping groove 18, the vertical rod 14 is fixedly connected to the left lower end of the control rod 3, the lower end of the vertical rod 14 is in sliding connection with the valve body 1, the lower extreme inside sliding connection of montant 14 has reset spring 15, reset spring 15 has elasticity and reset effect, the inside sliding connection of lower extreme of montant 14 has stopper 16, the left end fixedly connected with lug 17 of stopper 16, the inside draw-in groove 18 that is provided with of upper end of valve body 1, lug 17 and draw-in groove 18 joint, draw-in groove 18 are provided with three, be horizontal draw-in groove 18 respectively, slope draw-in groove 18 and vertical draw-in groove 18, when lug 17 and horizontal draw-in groove 18 joint, the transverse channel of valve body 1 is opened, when lug 17 and slope draw-in groove 18 joint, valve body 1 is in the closed state, when lug 17 and vertical draw-in groove 18 joint, the vertical channel of valve body 1 is opened.

In order to ensure the tightness of the valve ball 5, a reinforcing sealing structure 8 is provided, the reinforcing sealing structure 8 comprises a supporting plate 9, a supporting rod 10, a circular groove 11 and a supporting spring 12, the supporting spring 12 is in a compressed state, and the supporting plate 9 is always provided with an outward thrust.

In this embodiment, through setting up of supporting spring 12 and backup pad 9 etc. have the effect of outwards promoting sealing pad 7 and supporting sealing pad 7 for sealing pad 7 closely laminates with the inner wall of valve body 1 all the time, realizes sealing characteristic, prevents to take place sealing pad 7 wearing and tearing and valve body 1 and produce the gap, appears the oil leak phenomenon.

Example 2

In order to prevent excessive rotation or insufficient rotation of the valve body 1 when a user uses the valve body 1, a control structure 13 is provided, the control structure 13 comprises a vertical rod 14, a return spring 15, a limiting block 16, a protruding block 17 and a clamping groove 18, and the clamping groove 18 is provided with three parts, namely a horizontal clamping groove 18, an inclined clamping groove 18 and a vertical clamping groove 18.

In this embodiment, when the control lever 3 is rotated, when the protrusion 17 provided on the vertical rod 14 at the lower end of the control lever 3 is engaged with the horizontal engaging groove 18, the lateral passage of the valve body 1 is opened, when the protrusion 17 is engaged with the inclined engaging groove 18, the valve body 1 is in a closed state, and when the protrusion 17 is engaged with the vertical engaging groove 18, the vertical passage of the valve body 1 is opened.

This four-way reversing plug valve is when using, because the inside enhancement seal structure 8 that is provided with of valve ball 5, the inside supporting spring 12 of enhancement seal structure 8 sets up to compression spring, so supporting spring 12 has outside thrust all the time to bracing piece 10 and backup pad 9, thereby make backup pad 9 outwards promote sealed pad 7 all the time, sealed pad 7 is closely laminated with the inner wall of valve body 1 all the time, the effect of guaranteeing valve ball 5 leakproofness, prevent to take place sealed pad 7 wearing and tearing, there is the gap with valve body 1, the phenomenon of oil leak appears, simultaneously when using valve body 1, control lever 3 initial state is in the inclined state, the circulation groove 6 of valve ball 5 is not in any logical groove intercommunication with valve body 1 at this moment, because the setting of control lever 3 lower extreme control structure 13, have the effect that limits the angle of rotatory control lever 3, if clockwise rotatory control lever 3, the lug 17 and the slope draw-in groove 18 that the inside of control lever 3 lower extreme montant is provided with of control lever 14 break away from, the time, the circulation groove 6 and the vertical two logical grooves circulation of valve body 1 of this moment, realize opening 1 vertical switch, the gap exists, the phenomenon of opening 1, the anticlockwise rotatory control lever 3 and the circulation groove 3 can be in order to take place the purpose, the horizontal joint 3 and the purpose is opened with the valve body 1 or the horizontal rotation 3 can take place, the purpose is realized through the control lever 1, the valve body is opened through the valve body 1 or can be opened through the control lever 3, the control lever is opened through the control lever 3, the effect is opened through the control lever 3 and the valve 1, the valve can be opened through the opposite side to the valve 3 and the valve can be opened to the valve through the control valve 1.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides a four-way reversing plug valve, includes valve body (1), its characterized in that: the inside of valve body (1) is provided with valve rod (2), the upper end fixedly connected with control rod (3) of valve rod (2), the upper end fixed surface of valve rod (2) has cup jointed sealing washer (4), the lower extreme fixedly connected with valve ball (5) of valve rod (2), valve ball (5) are provided with circulation groove (6), the surface of valve ball (5) is provided with sealed pad (7), valve ball (5) are provided with reinforcing seal structure (8), reinforcing seal structure (8) include backup pad (9), bracing piece (10), circular slot (11) and supporting spring (12), the internally connected with backup pad (9) of sealed pad (7), the inside fixedly connected with bracing piece (10) of backup pad (9), the surface of valve ball (5) is provided with circular slot (11), the end and the circular slot (11) sliding connection of bracing piece (10), the inside sliding connection of circular slot (11) has supporting spring (12), the lower extreme of control rod (3) is provided with control structure (13), montant (16) and return spring (12), the left lower extreme fixedly connected with montant (14) of control lever (3), the lower extreme and the valve body (1) sliding connection of montant (14), the inside sliding connection of lower extreme of montant (14) has reset spring (15), the inside sliding connection of lower extreme of montant (14) has stopper (16), the left end fixedly connected with lug (17) of stopper (16), the inside draw-in groove (18) that is provided with of upper end of valve body (1), lug (17) and draw-in groove (18) joint.

2. The four-way reversing plug valve of claim 1, wherein: the two sealing rings (4) are arranged and are rotationally connected with the valve body (1).

3. The four-way reversing plug valve of claim 1, wherein: the valve ball (5) is arranged at the communication part of the four through grooves of the valve body (1).

4. The four-way reversing plug valve of claim 1, wherein: the clamping part of the lug (17) is spherical.

5. The four-way reversing plug valve of claim 1, wherein: the clamping grooves (18) are three, and the three clamping grooves (18) are spaced 45 degrees from each other.