CN212718146U

CN212718146U - Catalyst sampling ball valve of high-temperature high-frequency switch capable of preventing leakage

Info

Publication number: CN212718146U
Application number: CN202021630270.8U
Authority: CN
Inventors: 田世忠; 谷千; 杨博; 刘海春
Original assignee: Zhejiang Speed Fluid Technology Co ltd
Current assignee: Zhejiang Speed Fluid Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-16
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a prevent catalyst sample ball valve of outer high temperature high frequency switch that leaks, including main part and anticreep hole that falls, the valve rod is installed at the main part top, and installs the spacer at the valve rod top, the main part bottom is connected with thrust gasket, and is provided with the bottom end cover bottom the main part, the bottom end cover outside is provided with the winding gasket, and bottom end cover internally mounted has the system double-screw bolt that leads, system double-screw bolt external connection has the locking ring, and is provided with tight set nut bottom the locking ring, the anticreep hole that falls is seted up in tight set nut surface. This prevent catalyst sample ball valve of outer hourglass high temperature high frequency switch mills flat side through drawing system double-screw bolt head, makes it can prevent that the lower extreme lid from beating to change when screwing up lock nut, influences sealed effect, and sets up through mutually supporting between anticreep drop hole, draw-in groove, fixture block and the bolt, makes it draw system double-screw bolt and tightly decide to be connected more stability between the nut, has further avoided tightly deciding the nut and has skidded the condition that arouses the lower extreme lid and beat to change.

Description

Catalyst sampling ball valve of high-temperature high-frequency switch capable of preventing leakage

Technical Field

The utility model relates to a ball valve technical field specifically is a prevent catalyst sample ball valve of outer hourglass high temperature high frequency switch.

Background

The ball valve, the opening and closing piece (spheroid) is driven by the valve stem, and round the valve that the ball valve axis makes rotary motion, also can be used to fluidic regulation and control, wherein have very strong shearing force between its V type ball core of the hard seal V-type ball valve and the metal valve seat of the build-up welding carbide, the medium that is particularly useful for containing fibre, tiny solid particle etc., and the multiple-way ball valve not only can control the confluence of medium, reposition of redundant personnel, and the switching of flow direction in a flexible way on the pipeline, also can close arbitrary passageway and make two other passageways link to each other simultaneously.

The existing ball valve is generally of an upper-mounted valve rod structure, so that the sealing performance is poor, the packing load is large, the leakage risk is high, the graphite is easy to age and oxidize under the condition that the graphite exists in the lower shaft hole, the valve body is leaked, and the catalyst sampling ball valve capable of preventing the high-temperature high-frequency switch from leaking is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent catalyst sample ball valve of outer hourglass high temperature high frequency switch to it generally is upper assembling formula valve rod structure to provide general ball valve in solving above-mentioned background art, makes its leakproofness relatively poor, causes the packing load big, and it is higher to reveal the risk, and the sealing in shaft hole has the graphite condition under, and graphite is ageing and oxidation very easily, causes the problem that the valve body leaked.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent catalyst sample ball valve of outer hourglass high temperature high frequency switch, includes main part and anti-drop hole, the valve rod is installed at the main part top, and installs the spacer at the valve rod top, the main part bottom is connected with the thrust gasket, and is provided with the lower end cover bottom the main part, the lower end cover outside is provided with the winding gasket, and lower end cover internally mounted has the system double-screw bolt that leads, system double-screw bolt externally connected has the locking ring, and is provided with tight set nut bottom the locking ring, anti-drop hole sets up in tight set nut surface, and anti-drop downthehole wall has seted up the draw-in groove, the inside fixture block that is provided with of.

Preferably, the thrust washer is connected with the main body in a sealing mode through the valve rod, and the thrust washer is annular.

Preferably, the lower end cover and the winding gasket are mutually attached, and the vertical center line of the lower end cover coincides with the vertical center line of the winding gasket.

Preferably, the holding stud forms a fixing structure with the main body through a locking ring and a fastening nut, and the size of the inner opening of the locking ring is matched with that of the outer opening of the holding stud.

Preferably, the clamping grooves are uniformly distributed at equal intervals on the inner wall of the anti-falling hole, and the number of the clamping grooves is four.

Preferably, the bolt rod passes through the clamping block, the clamping groove and forms a clamping structure with the fastening nut, and the bolt rod penetrates through the inside of the fastening nut.

Compared with the prior art, the beneficial effects of the utility model are that: this prevent catalyst sample ball valve of outer hourglass high temperature high frequency switch, except with the cooperation of main part, the device valve rod afterbody and the setting of mutually supporting between the spacer make its valve switch more stable, and through the thrust gasket, mutually supporting between valve rod and the main part for reduce the load of packing, prolong the filler life-span, thereby reduced the risk that the valve body revealed.

This prevent catalyst sample ball valve of outer hourglass high temperature high frequency switch through the mutually supporting setting between main part and the winding gasket, makes under its main part shaft hole department sealed by the winding gasket, has solved pure graphite or has packed structure graphite oxidation and ageing problem under the high temperature down, and the problem of leaking is outward solved in lower shaft hole.

This prevent catalyst sample ball valve of outer high temperature high frequency switch that leaks, through milling flat side to holding down the double-screw bolt head, make it can prevent that the lower extreme lid from beating to change when screwing up lock nut, influence sealed effect, and set up through mutually supporting between anticreep drop hole, draw-in groove, fixture block and the bolt, make it hold down and be connected more stable between the double-screw bolt and the tight nut, further avoided tight nut to skid and arouse the condition that the lower extreme lid beaten to change.

Drawings

FIG. 1 is a schematic view of the front view of the internal structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the fastening nut of the present invention.

In the figure: 1. a main body; 2. anti-falling holes; 3. a valve stem; 4. positioning plates; 5. a thrust washer; 6. a lower end cover; 7. winding the gasket; 8. the stud is drawn; 9. locking a ring; 10. tightening the nut; 11. a card slot; 12. a clamping block; 13. a latch rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-3, the present invention provides a technical solution: a catalyst sampling ball valve of an anti-leakage high-temperature high-frequency switch comprises a main body 1 and an anti-falling hole 2, wherein a valve rod 3 is installed at the top of the main body 1, a positioning plate 4 is installed at the top of the valve rod 3, a thrust gasket 5 is connected to the bottom of the main body 1, a lower end cover 6 is arranged at the bottom of the main body 1, the thrust gasket 5 is in sealing connection with the main body 1 through the valve rod 3, the thrust gasket 5 is annular, the valve switch is more stable through the matching arrangement between the tail part of the valve rod 3 and the positioning plate 4, the connection between the valve rod 3 and the main body 1 is more sealed through the close fit between the thrust gasket 5 and the valve rod 3 in an annular structure, the load of a filler is reduced, the service life of the filler is prolonged, the risk of valve body leakage is reduced, the thrust gasket 5 is hardened or is made of an integral hardened, the grinding tool is extended into the main body 1 from the shaft hole of the lower valve body to grind the matching part of the main body 1 to achieve sealing grade smoothness, the anti-thrust step part of the valve rod 3 is hardened and ground to ensure the sealing effect of the position, and the valve rod 3 is stabilized through the double action of the positioning sheet 4;

the outer side of the lower end cover 6 is provided with a winding gasket 7, a restraining stud 8 is arranged in the lower end cover 6, the lower end cover 6 and the winding gasket 7 are mutually attached, the vertical central line of the lower end cover 6 is coincident with the vertical central line of the winding gasket 7, and the lower shaft hole of the main body 1 is sealed by the winding gasket 7 through the mutual matching arrangement of the main body 1 and the winding gasket 7, so that the problems of oxidation and aging of pure graphite or lower packing structure graphite at high temperature and the problem of leakage of the lower shaft hole are solved;

the locking ring 9 is connected to the exterior of the draw stud 8, the bottom of the locking ring 9 is provided with the fastening nut 10, the draw stud 8 forms a fixed structure with the main body 1 through the locking ring 9 and the fastening nut 10, the size of the inner opening of the locking ring 9 is matched with the size of the outer opening of the draw stud 8, the main body 1 is more stable through the mutual matching arrangement of the draw stud 8, the locking ring 9 and the fastening nut 10, and the head of the draw stud 8 is milled flat, so that the lower end cover 6 can be prevented from rotating when the fastening nut 10 is screwed, and the sealing effect is influenced;

anti-falling hole 2 is seted up on tightly deciding nut 10 surface, and 2 inner walls in anti-falling hole have seted up draw-in groove 11, the inside fixture block 12 that is provided with of draw-in

groove

11, and 12 one end of fixture block are fixed with bolt rod 13, draw-in groove 11 is equidistance evenly distributed about 2 inner walls in anti-falling hole, and draw-in groove 11 is provided with four, bolt rod 13 passes through fixture block 12, draw-in groove 11 and tightly decide and constitute the block structure between the nut 10, and bolt rod 13 runs through inside tightly deciding nut 10, through anti-falling hole 2, draw-in groove 11, mutually supporting between fixture block 12 and the bolt rod 13 sets up, make it pin 8 and tightly decide and be connected more stable between the nut 10, the condition that tightly deciding nut 10 skidded and cause lower end cover 6 to spin has further.

The working principle is as follows: when the catalyst sampling ball valve of the anti-leakage high-temperature high-frequency switch is used, firstly, the thrust washer 5 is hardened or a whole hardened material is adopted, the surface is polished and ground, then, the thrust washer 5 extends into a grinding tool from the lower shaft hole of the main body 1 to grind the matching part of the main body 1 to achieve the sealing grade smoothness, further, the thrust step part of the valve rod 3 is hardened and ground to ensure the sealing effect of the position, the valve rod 3 is stabilized through the double action of the positioning piece 4, then, the valve rod 3 is penetrated through the lower shaft hole of the main body 1, the lower end cover 6 and the winding washer 7 are arranged in the valve body hole, then, the drawing stud 8 and the locking ring 9 are screwed in the lower shaft hole, the fastening nut 10 is screwed, the flat square groove on the drawing stud 8 is clamped by a spanner, the fastening nut 10 is screwed in, finally, the bolt rod 13 is aligned to the clamping groove 11 on the inner wall of the surface falling-off preventing position of, the locking is performed by penetrating the interior of the fastening nut 10, and the bolt rod 13 of the draw stud 8 is abutted, so that the situation that the lower end cover 6 rotates due to the slippage of the fastening nut 10 is avoided.

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

Claims

1. The utility model provides a prevent catalyst sample ball valve of outer high temperature high frequency switch that leaks, includes main part (1) and anticreep hole (2), its characterized in that: valve rod (3) are installed at main part (1) top, and locating piece (4) are installed at valve rod (3) top, main part (1) bottom is connected with thrust gasket (5), and main part (1) bottom is provided with lower end cover (6), the lower end cover (6) outside is provided with winding gasket (7), and lower end cover (6) internally mounted has draw down double-screw bolt (8), draw down double-screw bolt (8) external connection has locking ring (9), and locking ring (9) bottom is provided with tight set nut (10), tight set nut (10) surface is seted up in anticreep hole (2), and draw-in groove (11) have been seted up to anticreep hole (2) inner wall, inside fixture block (12) that is provided with of draw-in groove (11), and fixture block (12) one end is fixed with bolt pole (13).

2. The catalyst sampling ball valve of the high-temperature high-frequency switch capable of preventing the leakage according to claim 1, which is characterized in that: the thrust gasket (5) is in sealing connection with the main body (1) through the valve rod (3), and the thrust gasket (5) is annular.

3. The catalyst sampling ball valve of the high-temperature high-frequency switch capable of preventing the leakage according to claim 1, which is characterized in that: the lower end cover (6) and the winding gasket (7) are mutually attached, and the vertical center line of the lower end cover (6) is coincided with the vertical center line of the winding gasket (7).

4. The catalyst sampling ball valve of the high-temperature high-frequency switch capable of preventing the leakage according to claim 1, which is characterized in that: the draw stud (8) forms a fixing structure with the main body (1) through a locking ring (9) and a fastening nut (10), and the size of the inner opening of the locking ring (9) is matched with that of the outer opening of the draw stud (8).

5. The catalyst sampling ball valve of the high-temperature high-frequency switch capable of preventing the leakage according to claim 1, which is characterized in that: the clamping grooves (11) are uniformly distributed on the inner wall of the anti-falling hole (2) at equal intervals, and four clamping grooves (11) are formed.

6. The catalyst sampling ball valve of the high-temperature high-frequency switch capable of preventing the leakage according to claim 1, which is characterized in that: the bolt rod (13) forms a clamping structure with the fastening nut (10) through the clamping block (12), the clamping groove (11), and the bolt rod (13) penetrates through the inside of the fastening nut (10).