CN218094358U - Knife edge type sealing ball valve - Google Patents

Abstract

The utility model discloses a knife edge type sealing ball valve, which comprises a valve body, the both sides of valve body are fixed with first flange respectively, the left side of valve body is provided with left side connection port. This sealed ball valve of edge of a knife formula passes through the ball valve at the in-process of installation use, can be respectively on the left side of left side connection port and the right side of right side connection port, utilize the filter screen to carry out the screw in the fixed back of utilizing the fixed connector of one side to correspond the inside hole of inner chamber, can be with two sets of filter screens fixed both sides that set up at the valve respectively, the in-process that uses at the valve connecting tube, two sets of filter screens of setting can seal the inside of valve, when the fluid gets into the inside to the valve body, the filter screen that sets up can carry out supplementary filtration and get rid of to granule impurity etc. in the fluid, reduce the impurity that gets into to the valve inside, reduce the wearing and tearing when the valve uses simultaneously, the problem of impurity to the liquid in the time of having solved and being not convenient for carrying out supplementary filtration treatment.

Description

Knife edge type sealing ball valve

Technical Field

The utility model relates to a ball valve technical field specifically is a sealed ball valve of edge of a knife formula.

Background

The ball valve is the valve that the circulation of the spheroid shape of being set up by inside adjusts and control the circulation of fluid, it is extensive to use, some current edge-type seal ball valves are installed for the accurate cooperation respectively between the in-process ball valve internal components that use, the ball valve is using the in-process that switches on to flowing liquid, particulate matter impurity that carries in the liquid can enter into the inside to the ball valve subassembly, increase the coefficient of friction of internal components, cause wearing and tearing, consequently, need carry out supplementary filtration to the impurity in the liquid, in order to reduce the fault rate when the ball valve uses.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sealed ball valve of edge of a knife formula to it is not convenient for carry out supplementary filtration treatment's problem to the impurity in the liquid to provide in solving above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a sealed ball valve of edge of a knife formula, includes the valve body, the both sides of valve body are fixed with first flange respectively, the left side of valve body is provided with left side connection port, the vertical valve rod that is provided with in top of valve body, the outside top of valve rod is fixed with the handle, the inside of valve body is provided with the case, the right side of valve body is provided with right side connection port, the left inside of left side connection port and the inside on right side connection port right side are provided with the inner chamber respectively, the inside of inner chamber is provided with the filter screen.

Preferably, a connector is fixed on one side of the filter screen, and an inner hole is formed in the inner part on one side of the inner cavity.

Preferably, the outside of connector is provided with the external screw thread, the inside of hole is provided with the internal thread with external screw thread matched with.

Preferably, the right side of left side connection port and the left side of right side connection port are fixed with second flange respectively, the top and the bottom and both ends of first connection flange one side are run through respectively and are provided with connecting bolt, be provided with sealed the pad between first connecting flange and the second flange, the outside one side of connecting bolt is provided with fixation nut.

Preferably, one side of the connecting bolt penetrates through the second connecting flange and the inner part of the fixing nut respectively.

Preferably, the inside of the top end of the valve body is provided with a self-lubricating bearing, the outside of the self-lubricating bearing is provided with a gland sleeve, the bottom end of the gland sleeve is provided with graphite packing, the top end of the valve body is provided with a gland main body, the insides of two sides of the gland main body are respectively provided with an inner hexagonal screw in a penetrating manner, the bottom end of the handle is fixed with a positioning sheet, and two sides of the inside of the valve body are respectively provided with a graphite sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that: the knife edge type sealing ball valve not only realizes the auxiliary filtering treatment of impurities in liquid, realizes the disassembly and assembly of the ball valve component, but also improves the internal sealing effect of the ball valve when in use;

(1) By arranging the inner cavity, the connectors, the filter screens and the inner holes, the ball valve can be respectively arranged on the left side of the left-side connecting port and the right side of the right-side connecting port in the installation and use process, the filter screens are screwed into the inner holes in the inner cavity corresponding to the connectors fixed on one side and then are fixed, so that the two groups of filter screens can be respectively and fixedly arranged on the two sides of the valve, in the use process of the valve connecting pipeline, the two groups of filter screens can seal the inside of the valve, when fluid enters the valve body, the arranged filter screens can filter and remove particle impurities and the like in the fluid in an auxiliary manner, so that the impurities entering the inside of the valve are reduced, and meanwhile, the abrasion of the valve in the use process is reduced;

(2) The ball valve is provided with the valve body, the left connecting port, the connecting bolt, the first connecting flange, the second connecting flange and the fixing nut, the ball valve can be respectively arranged on two sides of the valve body in the using process, after the fixing nuts arranged on the top and the bottom of one side of the second connecting flange and two ends of the second connecting flange are correspondingly screwed out from the outside of the connecting bolt, the first connecting flange and the second connecting flange can be detached, the left connecting port and the right connecting port can be separated from the valve body by using the first connecting flange and the second connecting flange, all components are detachably arranged, and the ball valve can be independently detached for replacement when being damaged in the using process;

(3) Through being provided with the valve body, the graphite sealing ring, the valve rod, graphite packing, the spacer, the handle, the gland main part, the gland cover, self-lubricating bearing and hexagon socket head cap screw, sealed ball valve is provided with the graphite sealing ring in the in-process of using in the inside both sides of valve body respectively, rotate the in-process of switching at the case, two sets of graphite sealing rings of setting can carry out inside to the inside both sides of valve body and seal, the outside packing of the inside valve rod on valve body top is provided with graphite packing simultaneously, can seal the top of valve, the graphite packing and the graphite sealing ring of setting can make the valve sealed effect when using better.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is an enlarged partial cross-sectional view of the utility model at a in fig. 1;

FIG. 3 is a side view of a second connecting flange according to the present invention, showing an enlarged partial cross-section;

fig. 4 is a schematic diagram of the valve rod explosion amplification structure of the present invention.

In the figure: 1. a valve core; 2. a valve body; 3. a first connecting flange; 4. a left side connection port; 5. an inner cavity; 6. a connecting bolt; 7. graphite filler; 8. a valve stem; 9. a handle; 10. a graphite seal ring; 11. a right side connection port; 12. a second connecting flange; 13. a connecting port; 14. filtering with a screen; 15. an inner bore; 16. fixing a nut; 17. positioning a sheet; 18. a gland body; 19. pressing a cover sleeve; 20. self-lubricating the bearing; 21. a hexagon socket head cap screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-4, a knife-edge type sealing ball valve comprises a valve body 2, wherein first connecting flanges 3 are respectively fixed on two sides of the valve body 2, a left connecting port 4 is arranged on the left side of the valve body 2, a valve rod 8 is vertically arranged at the top end of the valve body 2, a handle 9 is fixed at the top end outside the valve rod 8, a valve core 1 is arranged inside the valve body 2, a right connecting port 11 is arranged on the right side of the valve body 2, an inner cavity 5 is respectively arranged inside the left connecting port 4 and inside the right connecting port 11, and a filter screen 14 is arranged inside the inner cavity 5;

a connecting port 13 is fixed on one side of the filter screen 14, an inner hole 15 is formed in the inner part of one side of the inner cavity 5, an external thread is arranged outside the connecting port 13, and an internal thread matched with the external thread is arranged in the inner hole 15;

specifically, as shown in fig. 1 and fig. 2, the left side of the left side connection port 4 and the right side of the right side connection port 11 can be respectively, after the filter screen 14 is screwed into the inner hole 15 inside the inner cavity 5 corresponding to the fixed connection port 13 on one side, two sets of filter screens 14 can be respectively and fixedly arranged on two sides of the valve, in the process of using the valve connection pipeline, the two sets of filter screens 14 can be used for sealing the inside of the valve, when the fluid enters the inside of the valve body 2, the filter screen 14 can be used for filtering and removing particles and impurities in the fluid in an auxiliary manner, the inside of the valve is sealed, and impurities entering the inside of the valve are reduced.

Example 2: second connecting flanges 12 are respectively fixed on the right side of the left connecting port 4 and the left side of the right connecting port 11, connecting bolts 6 are respectively arranged on the top, the bottom and two ends of one side of the first connecting flange 3 in a penetrating manner, a sealing gasket is arranged between the first connecting flange 3 and the second connecting flange 12, a fixing nut 16 is arranged on one side of the outer part of the connecting bolt 6, and one side of the connecting bolt 6 respectively penetrates through the second connecting flange 12 and the inner part of the fixing nut 16;

specifically, as shown in fig. 1 and 3, after the fixing nuts 16 disposed at the top and the bottom of one side of the second connecting flange 12 and at the two ends are screwed out from the outside of the connecting bolt 6, the first connecting flange 3 and the second connecting flange 12 can be detached from each other, the left connecting port 4 and the right connecting port 11 can be detached from the valve body 2 by using the first connecting flange 3 and the second connecting flange 12, and the components are detachably designed to facilitate disassembly and assembly.

Example 3: a self-lubricating bearing 20 is arranged inside the top end of the valve body 2, a gland sleeve 19 is arranged outside the self-lubricating bearing 20, graphite packing 7 is arranged at the bottom end of the gland sleeve 19, a gland main body 18 is arranged at the top end of the valve body 2, inner hexagonal screws 21 respectively penetrate through the insides of two sides of the gland main body 18, a positioning sheet 17 is fixed at the bottom end of the handle 9, and graphite sealing rings 10 are respectively arranged on two sides inside the valve body 2;

specifically, as shown in fig. 1 and 4, graphite sealing rings 10 are respectively arranged on two sides inside the valve body 2, and in the process of opening and closing the valve core 1 by rotation, the two sets of graphite sealing rings 10 can seal the two sides inside the valve body 2, and graphite packing 7 is filled outside the inner valve rod 8 on the top end of the valve body 2, so that the top end of the valve can be sealed, and the sealing effect of the ball valve is better.

The working principle is as follows: the utility model discloses when using, can be respectively in left side and right side connection port 11's of left side connection port 4 right side, utilize filter screen 14 to carry out the screw in fixed back in the inside hole 15 of connector 13 correspondence inner chamber 5 that one side is fixed, can be with two sets of filter screens 14 fixed both sides that set up at the valve respectively, in-process that valve connecting tube used, two sets of filter screens 14 that set up can seal the inside of valve, when the fluid enters into valve body 2's inside, the filter screen 14 that sets up can carry out supplementary filtration and get rid of to the granule impurity etc. in the fluid, reduce and get into to the inside impurity of valve, be provided with graphite sealing ring 10 in the inside both sides of valve body 2 respectively simultaneously, in-process at case 1 rotation switching, two sets of graphite sealing ring 10 that set up can carry out inside sealing to the inside both sides of valve body 2, the outside packing of inside 8 on valve rod simultaneously on valve body 2 top is provided with graphite packing 7, can seal the top of valve, and when the ball valve is used, can be respectively in valve body 2's both sides, can carry out detachable connection flange 12 one side and the connection flange 3 with the first connection flange subassembly through the first connection flange 3 with the first connection flange 3 respectively with the fixed nut 16 that sets up of both ends, can be connected between the valve body, can be connected with the detachable connection flange between the left side and the detachable connection flange subassembly, the flange.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 (6)

1. The utility model provides a knife-edge seal ball valve, includes valve body (2), its characterized in that: the utility model discloses a valve, including valve body (2), valve rod (8), handle (9), valve body (2), valve core (1), valve body (2), left side connection port (4), the vertical valve rod (8) that is provided with in top of valve body (2), the outside top of valve rod (8) is fixed with handle (9), the inside of valve body (2) is provided with case (1), the right side of valve body (2) is provided with right side connection port (11), the inside on left inside and right side connection port (11) right side of left side connection port (4) is provided with inner chamber (5) respectively, the inside of inner chamber (5) is provided with filter screen (14).

2. The knife-edge sealed ball valve of claim 1, wherein: a connecting port (13) is fixed on one side of the filter screen (14), and an inner hole (15) is formed in the inner part of one side of the inner cavity (5).

3. A knife-edge sealed ball valve as claimed in claim 2, wherein: the external part of the connecting port (13) is provided with external threads, and the internal part of the inner hole (15) is provided with internal threads matched with the external threads.

4. The knife-edge sealed ball valve of claim 1, wherein: the right side of left side connection port (4) and the left side of right side connection port (11) are fixed with second flange (12) respectively, the top and the bottom and both ends of first connection flange (3) one side are run through respectively and are provided with connecting bolt (6), be provided with sealed the pad between first connection flange (3) and second flange (12), connecting bolt (6) outside one side is provided with fixation nut (16).

5. The knife-edge sealed ball valve of claim 4, wherein: one side of the connecting bolt (6) penetrates through the second connecting flange (12) and the fixing nut (16) respectively.

6. The knife-edge sealed ball valve of claim 1, wherein: the improved self-lubricating valve is characterized in that a self-lubricating bearing (20) is arranged inside the top end of the valve body (2), a gland sleeve (19) is arranged outside the self-lubricating bearing (20), graphite packing (7) is arranged at the bottom end of the gland sleeve (19), a gland main body (18) is arranged on the top end of the valve body (2), inner hexagonal screws (21) are arranged inside two sides of the gland main body (18) in a penetrating mode respectively, positioning pieces (17) are fixed at the bottom end of the handle (9), and graphite sealing rings (10) are arranged on two sides inside the valve body (2) respectively.

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