CN219570928U - Cutting ferrule ball valve that sealing performance is better - Google Patents

Abstract

The utility model relates to a sleeve ball valve with better sealing performance, which comprises a valve body, a valve core and a valve rod, wherein the valve core is arranged in a mounting hole of the valve body and is connected with the valve rod, a first filler is arranged between the valve core and the valve body, a pressing nut is sleeved on the valve rod, a sleeve nut is screwed on a port of the valve body, a limiting ring is formed on the end face of the sleeve nut, which faces the valve body, a plurality of limiting grooves which are arrayed in a ring shape along the center of the limiting ring are formed on the inner wall of the limiting ring, the limiting grooves are in a cutting blocking shape and incline along the screwing direction of the sleeve nut, a cylindrical limiting part which can extend into the limiting ring is formed on a port of the valve body, a limiting elastic piece is arranged on the peripheral side face of the limiting part, and the limiting elastic piece inclines along the screwing direction of the sleeve nut and can be clamped into the limiting groove. The clamping sleeve ball valve with better sealing performance is characterized in that the limiting elastic piece is matched with the limiting groove, the clamping sleeve nut is limited in the circumferential direction, the clamping sleeve nut is prevented from reversing, the pipeline is tightly connected with the clamping sleeve ball valve, and the sealing performance is better.

Description

Cutting ferrule ball valve that sealing performance is better

Technical Field

The utility model relates to the technical field of valves, in particular to a clamping sleeve ball valve with better sealing performance.

Background

The sleeve ball valve is an opening and closing device suitable for controlling the connection or disconnection of pipeline media under various pressures, temperatures and media of medium and small caliber pipelines, and the ball head is pressed on the valve body at the outlet end by the pressure of the media, so that the valve is convenient and rapid to open and close, and the quick opening and closing can be realized.

Cutting ferrule ball valve sets up the cutting ferrule on the port of valve body, in inserting the cutting ferrule through the pipeline, utilize cutting ferrule nut locking conflict cutting ferrule, make cutting ferrule inner edge cut into the pipeline uniformly and form effective seal, but current cutting ferrule ball valve is after long-term use, and cutting ferrule nut can produce not hard up, leads to the leakproofness to reduce, and causes the medium in the pipeline to reveal.

The present utility model has been made in view of the above problems.

Disclosure of Invention

The utility model provides a sleeve ball valve with better sealing performance, which solves the problems existing in the use process of the prior art.

The technical scheme of the utility model is realized as follows:

the utility model provides a cutting ferrule ball valve that sealing performance is better, includes valve body, case and valve rod, the case sets up in the mounting hole of valve body and is connected with the valve rod, be provided with first packing between case and the valve body, the cover is equipped with the swager nut on the valve rod, the spiro union has cutting ferrule nut on the valve body port, be formed with the spacing ring on the terminal surface of cutting ferrule nut orientation valve body, a plurality of spacing grooves along spacing ring central ring array have been seted up on the spacing ring inner wall, the spacing groove is cutting and blocks up shape and incline along cutting ferrule nut screwing direction, be formed with the columniform spacing portion that can stretch into the spacing ring on the valve body port, be provided with spacing shell fragment on the spacing portion week side, spacing shell fragment is along cutting ferrule nut screwing direction slope and can block into the spacing inslot.

Preferably, the limiting part is sleeved with a mounting ring, and the limiting elastic sheet is connected to the mounting ring.

Preferably, the limit spring plates are arranged in four along the annular array at the center of the mounting ring, and the limit grooves are arranged in an end-to-end mode and are arranged in multiples of four.

Preferably, a positioning protrusion is formed on the inner side surface of the mounting ring, a positioning groove matched with the positioning protrusion is formed on the peripheral side surface of the limiting part, and the positioning protrusion is clamped into the positioning groove.

Preferably, the mounting ring is formed with a detachable portion bent outward toward an end of the valve body.

Preferably, the limiting elastic sheet, the mounting ring and the positioning protrusion are integrally formed by stainless steel.

Preferably, the valve rod is sequentially sleeved with a material pressing sleeve, a second filler and a material pressing ring from bottom to top, the material pressing sleeve is in an inverted cap shape and is propped against the first filler, the second filler is arranged in the material pressing sleeve, the material pressing ring is propped against the upper end surface of the second filler, and the material pressing nut is propped against the upper end surface of the material pressing ring.

In summary, the beneficial effects of the utility model are as follows:

1. the clamping sleeve nut is circumferentially limited through the cooperation of the limiting elastic sheet and the limiting groove, so that the clamping sleeve nut cannot rotate reversely after being locked in place, the connection tightness between a pipeline and the valve body is ensured, and the clamping sleeve ball valve has better sealing performance.

2. Through the effect of swage sleeve and swage ring, make first packing and second packing remain stable throughout in the use to provide more stable sealed effect, make the cutting ferrule ball valve have better sealing performance.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

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

FIG. 2 is an enlarged schematic view of FIG. 1 at B;

FIG. 3 is a schematic cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 4 is a schematic view of the ferrule nut of the present utility model;

FIG. 5 is a schematic view of the mounting ring of the present utility model.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 5 of the embodiments of the present utility model, and it is obvious that the described embodiments 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.

As shown in the figure, the sleeve ball valve with better sealing performance comprises a valve body 1, a valve core 2 and a valve rod 3, wherein the valve core 3 is arranged in a mounting hole 11 of the valve body 1 and is connected with the valve rod 3, the valve rod 3 upwards penetrates out of the valve body 1 and is connected with a handle 4, a first packing 14 is arranged between the valve core 2 and the valve body 1 in the mounting hole 11, a pressing nut 15 is sleeved on the valve rod 3, a sleeve inner edge 6 is arranged in a port of the valve body 1, a sleeve nut 7 is screwed out of the port of the valve body 1, a limiting ring 71 is formed on the end face of the sleeve nut 7, a plurality of limiting grooves 72 which are arrayed in a ring shape along the center of the limiting ring 71 are formed on the inner wall of the limiting ring 71, the limiting grooves 72 are in a blocking shape and incline along the screwing direction of the sleeve nut 7, a cylindrical limiting part 12 which can extend into the limiting ring 71 is formed on the port of the valve body 1, a limiting elastic piece 81 is arranged on the circumferential side surface of the limiting part, and the limiting elastic piece 81 inclines along the screwing direction of the nut 7 and can be clamped into the limiting groove 72.

In the above embodiment, when the pipe is connected to the sleeve ball valve, the pipe sequentially passes through the sleeve nut 6 and the sleeve inner edge 7 and stretches into the port of the valve body 1, the sleeve nut 7 is made to abut against the end of the sleeve inner edge 6 by screwing the sleeve nut 7 inwards so as to enable the pipe to gradually expand, and when the sleeve nut 7 is screwed inwards, the limiting ring 71 approaches to the limiting elastic sheet 81, after the limiting ring 71 contacts with the limiting elastic sheet 81, the limiting elastic sheet 81 is pressed downwards so as to clamp into the limiting groove 72, and because the limiting elastic sheet 81 and the cutting-blocking-shaped limiting groove 72 are inclined along the screwing direction of the sleeve nut 7, the sleeve nut 7 can be screwed inwards continuously so as to enable the limiting elastic sheet 81 to slide between the limiting grooves 72, after the sleeve nut 7 is screwed in place so as to enable the pipe to be tightly connected with the port of the valve body 1, the end of the limiting elastic sheet 81 abuts against the groove bottom of one of the limiting groove 72, and circumferential limitation is applied to the nut 7 so as to prevent the nut 7 from loosening, thereby ensuring the connection tightness between the pipe and the valve body 1, and the ball valve has better sealing performance.

Preferably, in a specific mode of arranging the limiting elastic sheet 81 on the limiting portion 12, the mounting ring 82 is sleeved on the limiting portion 12, and the limiting elastic sheet 81 is connected to the mounting ring 82, so that the limiting elastic sheet 81 is convenient to disassemble and assemble.

Specifically, spacing shell fragment 81 is provided with four along collar 82 central annular array, and spacing groove 72 end to end is provided with four multiples, and four spacing shell fragments 81 card simultaneously go into four corresponding spacing grooves 72 in, make spacing shell fragment 81 apply more powerful stable circumference spacing to cutting ferrule nut 7, prevent cutting ferrule nut 7 reverse better, improve sealing performance, the spacing groove 72 that end to end set up simultaneously can reduce spacing shell fragment 81 and slide required travel distance between adjacent spacing groove 72 to screw at cutting ferrule nut 7 and make for it provides more accurate spacing.

Preferably, the positioning protrusion 83 is formed on the inner side surface of the mounting ring 82, the positioning groove 13 matched with the positioning protrusion 83 is formed on the circumferential side surface of the limiting part 12, the positioning protrusion 83 is clamped into the positioning groove 13, the mounting ring 82 can be firmly sleeved on the limiting part 12 by matching the positioning protrusion 83 with the positioning groove 13, and circumferential limiting can be applied to the mounting ring 12, so that the limiting elastic sheet 81 is ensured to have good stability after being propped in the limiting groove 72.

Specifically, the mounting ring 82 is bent outwards towards the end of the valve body 1 to form a dismounting portion 821, the dismounting portion 821 surrounds the end of the mounting ring 82 to form a ring shape, the diameter of the dismounting portion 821 is larger than that of the mounting ring 82, the mounting ring 82 is conveniently sleeved on the limiting portion 12, when the pipeline and the sleeve ball valve are required to be dismounted, a positioning protrusion 83 can be separated from the positioning groove 12 to dismount the mounting ring 82 from the limiting portion 12 through the insertion of a tool between the dismounting portion 821 and the limiting portion 12 and the slight prying, and at the moment, the mounting ring 82 and the limiting spring 81 are capable of rotating freely, so that the sleeve nut 7 can be reversed to dismount the pipeline and the sleeve ball valve.

Preferably, the limiting elastic piece 81, the mounting ring 82 and the positioning protrusion 83 are integrally formed by stainless steel, so that the limiting elastic piece 81 has good bending fatigue resistance while the three parts have high connection strength, and the clamping sleeve nut 7 can be stably limited in the circumferential direction, so that the sealing performance of the clamping sleeve ball valve is ensured.

Further, a material pressing sleeve 16, a second filler 17 and a material pressing ring 18 are sequentially sleeved on the valve rod 3 from bottom to top, the material pressing sleeve 16 is in an inverted cap shape, the lower end face of the material pressing sleeve 16 abuts against the first filler 14, the second filler 17 is arranged in the material pressing sleeve 16, the material pressing ring 18 abuts against the upper end face of the second filler 17, and the material pressing nut 15 abuts against the upper end face of the material pressing ring 18.

In the above preferred embodiment, the second packing 17 is tightly packed in the packing sleeve 16 by the packing ring 18, and the side wall of the packing sleeve 16 is stably expanded in the mounting hole 11 by being pressed, so that the second packing 17 is not deflected by the packing sleeve 16 in the circumferential direction, and can always keep stable to provide a better sealing effect due to deflection of the valve rod 3, and the lower end surface of the packing sleeve 16 is tightly pressed against the first packing 14, so that the first packing 14 can keep stable to provide a better sealing effect when the valve core 2 rotates, and therefore, the sleeve ball valve has a better sealing performance.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (7)

1. The utility model provides a cutting ferrule ball valve that sealing performance is better, includes valve body (1), case (2) and valve rod (3), case (2) set up in mounting hole (11) of valve body (1) be connected with valve rod (3), be provided with first packing (14) between case (2) and valve body (1), the cover is equipped with swager nut (15) on valve rod (3), the spiro union has cutting ferrule nut (7) on valve body (1) port, its characterized in that: the cutting sleeve nut (7) is formed with spacing ring (71) on the terminal surface towards valve body (1), a plurality of spacing grooves (72) along spacing ring (71) central annular array have been seted up on spacing ring (71) inner wall, spacing groove (72) are cutting stifled shape and incline along cutting sleeve nut (7) direction of screwing, be formed with cylindrical spacing portion (12) that can stretch into in spacing ring (71) on valve body (1) port, be provided with spacing shell fragment (81) on spacing portion (12) week side, spacing shell fragment (81) incline and can block into in spacing groove (72) along cutting sleeve nut (7) direction of screwing.

2. The ferrule ball valve with better sealing performance according to claim 1, wherein: the limiting part (12) is sleeved with a mounting ring (82), and the limiting elastic piece (81) is connected to the mounting ring (82).

3. The ferrule ball valve with better sealing performance according to claim 2, wherein: the limiting elastic pieces (81) are arranged in an annular array along the center of the mounting ring (82), and the limiting grooves (72) are arranged in an end-to-end mode and are arranged in multiple of four.

4. The ferrule ball valve with better sealing performance according to claim 2, wherein: the mounting ring (82) is provided with a positioning protrusion (83) on the inner side surface, a positioning groove (13) matched with the positioning protrusion (83) is formed in the peripheral side surface of the limiting part (12), and the positioning protrusion (83) is clamped into the positioning groove (13).

5. The ferrule ball valve with better sealing performance according to claim 4, wherein: the mounting ring (82) is bent outwards towards the end part of the valve body (1) to form a dismounting part (821).

6. The ferrule ball valve with better sealing performance according to claim 4, wherein: the limiting elastic sheet (81), the mounting ring (82) and the positioning bulge (83) are integrally formed by stainless steel.

7. The ferrule ball valve with better sealing performance according to claim 1, wherein: the valve rod (3) is sequentially sleeved with a pressing sleeve (16), a second packing (17) and a pressing ring (18) from bottom to top, the pressing sleeve (16) is in an inverted hat shape and is propped against the first packing (14), the second packing (17) is arranged in the pressing sleeve (16), the pressing ring (18) is propped against the upper end face of the second packing (17), and the pressing nut (15) is propped against the upper end face of the pressing ring (18).