CN213419968U

CN213419968U - Quick opening and closing spherical sealing gate valve

Info

Publication number: CN213419968U
Application number: CN202021770597.5U
Authority: CN
Inventors: 王建和; 洪永忠; 杨贵宏; 王利军; 张晓和
Original assignee: Xingwei Valve Group Co Ltd
Current assignee: Xingwei Valve Group Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-06-11
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a fast opening and closing spherical sealing gate valve, which comprises a valve body, a valve rod, a valve seat and a ball body, wherein the valve body is provided with an inflow port and an outflow port, a valve cavity is arranged between the inflow port and the outflow port, the ball body is arranged in the valve cavity, and symmetrical valve seats are arranged at the matching parts of the inflow end and the outflow end and the ball body; the ball body is split, a notch matched with the opening device is arranged on the ball body, the upper end of the valve rod is connected with the hand wheel, and the other end of the valve rod is connected with the ball body in a circumferential positioning mode through the opening device. Compared with the prior art, the utility model the advantage lie in: through two position simultaneous control about to the spheroid, reduce the wearing and tearing of spheroid and valve body, strengthen the leakproofness and the life of valve.

Description

Quick opening and closing spherical sealing gate valve

Technical Field

The utility model relates to the technical field of valves, specifically a open and close sphere sealing gate valve fast.

Background

The gate valve is an opening and closing piece gate plate, the moving direction of the gate plate is perpendicular to the fluid direction, the gate valve can only be fully opened and fully closed, the gate valve is not suitable for different gate parameters, the gate valve is usually 5 degrees, and the temperature of a medium is 2 degrees and 52 degrees when the temperature is not high. The manufacturability is improved, and the deviation of the angle of the sealing surface in the machining process is compensated, and the gate plate is called an elastic gate plate.

The gate valve can be tightly closed with the sealing surface by means of medium pressure, so that the effect of no leakage is achieved. When the valve is opened and closed, the valve core and the valve seat are always contacted and mutually rubbed, so that the sealing surface is easily abraded, and when the gate valve is closed, the front and back pressure difference of the pipeline is large, so that the abrasion of the sealing surface is more serious.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick open and close spherical sealing gate valve, its simple structure, processing convenience, sealing performance are good and difficult wearing and tearing, and its pipeline setting with the axle center is applicable to various medium environment.

The utility model discloses a solve above technical problem, adopt following technical scheme: the utility model provides a quick open and close sphere sealing gate valve, includes the main part, pressure device and bottom, the main part includes the well body and controls the body, is provided with a spheroid in the main part, and this spheroid has the notch with valve rod cooperation part, is equipped with the supporting shoe in the notch, supporting shoe upper portion and valve rod cooperation, outside the supporting shoe with handle and two connecting rods of hand wheel respectively complex, be provided with on the connecting rod with spheroid complex fixed pin, the valve rod upper end has cup jointed one and has can drive the decurrent hand wheel of valve rod, there is a vacancy part at the valve rod middle part, the built-in handle of taking the slip cap of vacancy part, the rotation handle lets spheroid lateral rotation through the effort.

Technical scheme more than adopting, the utility model has the advantages of it is following:

the utility model discloses optimize the inside spheroidal structure of main part, be equipped with on the spheroid with distraction device assorted notch, be equipped with the valve rod hole on the valve body, valve rod hole and hand wheel connection are worn out to valve rod one end, and the other end passes through distraction device, constitutes the circumference location with the spheroid and is connected to make just can drive spheroid change motion with lighter power when rotating the hand wheel.

As the utility model discloses a further optimization, the notch shape that is equipped with on the spheroid is the V font, through experimental, when the aperture is 35 degrees, spheroid and disk seat face-to-face contact constitute extremely strong sealed face.

As a further optimization of the utility model, the strutting device is composed of a supporting block, a connecting rod and a fixed pin, the strutting device is matched with the notch on the ball body to apply force to the ball body, so that the shape of the ball body is changed, and the valve is opened and closed; the lower end of the connecting rod is inserted into a connecting hole in the upper portion of the ball body to be fixed, when the connecting hole in the upper end is located on the same plane, the fixing pin is inserted to fix the supporting block and the ball body, the valve rod can change the shape of the ball body inside through the supporting block, the sealing performance of the valve is enhanced, the supporting block is in the shape of a cylinder with a hemispherical ball body, the cylinder can be tightly matched with the edge of the gap, and the gap of the hemispherical compensation ball body on the cylinder is a.

As the utility model discloses a further optimization, be connected by the sectional type valve rod between hand wheel and the supporting shoe, constituted a slider mechanism, the valve rod is positive to be provided with the handle, and when the top hand wheel rotated the bottommost that can reach, turning handle drove spheroid circumferential direction, made the valve closed.

As the utility model discloses a further optimization, the disk seat material is polytetrafluoroethylene, and the spheroid sphere when shape and distraction device push down constitutes accurate cooperation, and the leakproofness is splendid, and difficult wearing and tearing.

As the utility model discloses a further optimization, the valve body is equipped with the filler hole with the valve rod junction, is equipped with gland packing additional between filler hole and the valve rod, gland packing is the font align to grid of falling V, and gland packing upper portion is equipped with gland, and gland packing and valve body cooperation are with bolt zonulae occludens, and gland packing strengthens sealing performance.

As the utility model discloses a further optimization, flow in (out) mouth and valve pocket central line on same straight line, the valve inside of this moment does not have the consumption of flowing automatically, and fluid medium can be harmless to pass through the valve.

As the utility model discloses a further optimization, the spheroid is withstood to the valve rod of spheroid lower extreme, plays the positioning action, the sealed effect on balanced spheroid both sides for the spheroid can not take place deformation because of the medium flow velocity is too fast.

As the utility model discloses a further optimization, the upside at valve body both ends is equipped with eyebolt, and when valve body weight was too big, it is more convenient to remove the valve body.

As the utility model discloses a further optimization, the valve body lower extreme is fixed by bottom, bottom gasket and hex bolts, and when valve periodic maintenance, can dismantle the impurity that the bottom sedimentated when clearing up the inside fluid circulation of valve body.

Technical scheme more than adopting, through the notch cooperation on distraction device and the spheroid, make the utility model is suitable for a multiple environment promotes the practicality, leakproofness and life.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of 7 portions of the present invention.

Illustration of the drawings:

1. a valve body; 10. a handle; 2. a valve stem; 3. a valve seat; 4. a sphere; 5. an inflow port; 51. an outflow port; 6. a valve cavity; 7. a distraction device; 71. a support block; 72. a connecting rod; 73. a fixing pin; 8. a notch; 9. a handwheel.

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.

Example 1

In this concrete embodiment, the utility model provides a quick open and close sphere sealing gate valve, including valve body 1, valve rod 2, disk seat 3, spheroid 4, be equipped with inflow entrance 5 and egress opening 51 on the valve body 1, be equipped with the circulation passageway between inflow entrance 5 and the egress opening 51, the circulation passageway is valve pocket 6 with the interior vacancy part of valve body 1, is equipped with spheroid 4 in the valve pocket 6, flows in and flows out both ends and spheroid 4 cooperation parts and is equipped with symmetrical disk seat 3. The ball body is provided with a notch 8 matched with the opening device 7, the valve body 1 is provided with a valve rod hole, one end of the valve rod 2 penetrates out of the valve rod hole to be connected with a hand wheel 9, and the other end of the valve rod passes through the opening device 7 to form circumferential positioning connection with the ball body 4.

Through the arrangement, the structure of the ball body in the valve body 1 is optimized in the embodiment, the notch matched with the spreading device 7 is formed in the ball body 4, the valve rod hole is formed in the valve body 1, one end of the valve rod 2 penetrates out of the valve rod hole to be connected with the hand wheel 9, the other end of the valve rod is connected with the ball body 4 in a circumferential positioning mode through the spreading device 7, and therefore the force for driving the ball body to change and move is smaller when the hand wheel 9 is rotated; the opening device 7 is composed of a supporting block 71, a connecting rod 72 and a fixing pin 73, the opening device 7 is matched with the notch 8 on the ball body 4 to apply force to the ball body 4, so that the shape of the ball body 4 is changed, and the opening and closing of the valve are realized; the lower end of the connecting rod 72 is inserted into a connecting hole at the upper part of the ball body 4 for fixing, and when the connecting hole at the upper end is positioned on a plane, the supporting block 71 and the ball body 4 are fixed by inserting the fixing pin 73, so that the shape of the inner ball body 4 of the valve rod 2 can be changed through the supporting block 71, and the sealing performance of the valve is enhanced.

Further, the hand wheel 9 is connected with the supporting block 71 through a segmented valve rod to form a slider mechanism, and when the hand wheel 9 on the top rotates to the lowest position where the hand wheel can reach, the handle 10 is rotated to drive the ball 4 to rotate circumferentially to close the valve.

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. A quick opening and closing spherical sealing gate valve comprises a valve body (1), a valve rod (2), a valve seat (3) and a ball body (4), wherein an inflow port (5) and an outflow port (51) are arranged on the valve body, a valve cavity (6) is arranged between the inflow port (5) and the outflow port (51), the ball body (4) is arranged in the valve cavity (6), and symmetrical valve seats (3) are arranged at the matching parts of the inflow end and the outflow end and the ball body (4), and the gate valve is characterized in that the ball body (4) is split, a notch (8) matched with a spreading device (7) is arranged on the ball body, the upper end of the valve rod (2) is connected with a hand wheel (9), and the other end of the.

2. The quick opening and closing spherical sealing gate valve according to claim 1, characterized in that: the notch (8) arranged on the ball body (4) is V-shaped, and the opening degree is 30-35 degrees.

3. The quick opening and closing spherical sealing gate valve according to claim 1, characterized in that: the opening device (7) is composed of a supporting block (71), a connecting rod (72) and a fixing pin (73), the lower end of the connecting rod (72) is inserted into a connecting hole in the upper portion of the sphere (4) to be fixed, when the connecting hole in the upper end is located on one plane, the fixing pin (73) is inserted to fix the supporting block (71) and the sphere (4), and the supporting block (71) is in a cylindrical shape and is provided with a hemispherical sphere.

4. The quick opening and closing spherical sealing gate valve according to claim 1 or 3, characterized in that: the hand wheel (9) is connected with the supporting block (71) through a sectional type valve rod to form a sliding block mechanism, and a handle (10) is arranged in the center of the valve rod.

5. The quick opening and closing spherical sealing gate valve according to claim 1, characterized in that: the valve seat (3) is made of polytetrafluoroethylene, and the shape of the valve seat is accurately matched with the spherical surface of the ball body (4) when the opening device (7) is pressed down.

6. The quick opening and closing spherical sealing gate valve according to claim 1, characterized in that: the valve is characterized in that a packing hole is formed in the joint of the valve body (1) and the valve rod (2), sealing packing is additionally arranged between the packing hole and the valve rod and is uniformly arranged in an inverted V shape, and sealing glands are arranged on the upper portions of the sealing packing and are matched with the valve body (1) and are tightly connected through bolts.

7. The quick opening and closing spherical sealing gate valve according to claim 1, characterized in that: the inflow port (5), the outflow port (51) and the center line of the valve cavity (6) are on the same straight line.

8. The quick opening and closing spherical sealing gate valve according to claim 1, characterized in that: the valve rod (2) at the lower end of the sphere (4) is propped against the sphere (4).

9. The quick opening and closing spherical sealing gate valve according to claim 1, characterized in that: lifting ring screws are arranged on the upper sides of the two ends of the valve body (1).

10. The quick opening and closing spherical sealing gate valve according to claim 1, characterized in that: the lower end of the valve body (1) is fixed by a bottom cover, a bottom cover gasket and a hexagon bolt.