CN210069006U - Oblique cone type pipeline gate valve - Google Patents

Abstract

The utility model discloses a tapered pipeline gate valve, including the valve casing, both ends fixed connection flange about the valve casing, connecting thread hole is seted up to the lateral wall around the flange, valve casing upper surface top fixed connection guide cylinder, along fixed mounting seal ring on the guide cylinder, the first ring and the second ring that blocks water of valve casing inner wall difference fixed mounting, the laminating second ring left side wall that blocks water of the laminating of first ring right side wall that blocks water, first fixed slot is seted up to the first ring right side wall that blocks water, the second ring left side wall that blocks water sets up the second fixed slot, the oblique awl that blocks water of laminating of first fixed slot and second fixed slot inner wall, the oblique awl upper surface middle fixed mounting connecting device that blocks water, connecting device upper surface middle fixed connection screw rod, screw rod lateral wall spiro union nut, realized reducing operating personnel's the degree of opening and reduced the degree of difficulty of opening of gate valve, through the inclination and the first ring that blocks water of oblique awl, The gap of the second water-blocking ring changes the size of the water flow.

Description

Oblique cone type pipeline gate valve

Technical Field

The utility model relates to a pipeline gate valve technical field specifically is a tapered pipeline gate valve.

Background

The pipeline gate valve plays the important part that the switch both ends are connected, the switch part of gate valve is perpendicular with the rivers direction usually, pipeline gate valve is for closing totally or the full cut-off mode usually, the structure that blocks water that adopts the activity blocks water and stops rivers, current pipeline gate valve adopts the flashboard to block water more, rivers are big to the pressure of flashboard like this, exist and close not using the back for a long time opening because the effect of water easily causes flashboard and the structure that blocks water to bond, increase operating personnel's the degree of difficulty of opening, the problem that the degree of passage of rivers is not adjustable and controllable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oblique cone formula pipeline gate valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a tapered pipeline gate valve comprises a valve casing, wherein flanges are fixedly connected to the left end and the right end of the valve casing, connecting threaded holes are formed in the front side wall and the rear side wall of each flange, a guide cylinder is fixedly connected to the top of the upper surface of the valve casing, a sealing ring is fixedly installed on the guide cylinder, a first water blocking ring and a second water blocking ring are fixedly installed on the inner wall of the valve casing respectively, the right side wall of the first water blocking ring is attached to the left side wall of the second water blocking ring, a first fixing groove is formed in the right side wall of the first water blocking ring, a second fixing groove is formed in the left side wall of the second water blocking ring, a water blocking tapered cone is attached to the inner walls of the first fixing groove and the second fixing groove, a connecting device is fixedly installed in the middle of the upper surface of the water blocking tapered cone, a screw is fixedly connected to the middle of the upper surface of the connecting device, the outer side, the left end of the outer side wall of the valve shell is fixedly provided with a water pressure meter, and the measuring end of the water pressure meter extends into the cavity of the valve shell.

Preferably, first waterproof groove is seted up along the outer edge of first ring right side wall that blocks water, the second waterproof groove is seted up along the outer edge of second ring left side wall that blocks water, first waterproof groove and the waterproof strip of second waterproof groove upper surface laminating arc, the waterproof ring of the waterproof strip both ends fixed connection of arc, the vertical lateral wall of first waterproof groove and the vertical lateral wall of second waterproof groove of waterproof ring lateral wall laminating respectively.

Preferably, connecting device includes the first slider of leading, the first oblique awl of blocking water of leading slider lower fixed surface connection, the first slider inner wall laminating spheroid of leading, slider is led to spheroid lateral wall upper end laminating second, the second is led the first slider upper surface of leading of slider lower fixed surface connection, spheroid upper surface fixed connection connecting rod, connecting rod top fixed connection screw rod, the slider inner wall is led to the connecting rod lateral wall laminating second.

Preferably, a handle is fixedly arranged on the upper surface of the hand wheel.

Compared with the prior art, the beneficial effects of the utility model are that: an oblique cone type pipeline gate valve is provided with a first water-blocking ring, a second water-blocking ring and a water-blocking oblique cone, which achieves the effect of blocking water flow, the water-blocking inclined cone is separated towards the inclined upper part by rotating the hand wheel to drive the screw rod to rotate on the inner wall of the nut and the transmission of the connecting device, so that water can pass through the gate valve, and because the water-blocking inclined cone has an inclination angle in the vertical direction, the gaps between the water blocking inclined cone and the first water blocking ring and the gaps between the water blocking inclined cone and the second water blocking ring are gradually increased in the moving process, so that the water flow is gradually increased, the water blocking inclined cone and the water flow are inclined at an angle, the water flow can have an upward component force on the water blocking inclined cone, meanwhile, the contact surface of the water blocking oblique cone and water is arc-shaped, so that the resistance of water to the water blocking oblique cone is reduced, the use force of operators is reduced, the opening force of the operators is reduced, the opening difficulty of the gate valve is reduced, the purpose of changing the size of water flow is achieved through the inclination angle of the water blocking inclined cone and the gaps of the first water blocking ring and the second water blocking ring.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic view of a first water stop ring and its connection structure;

FIG. 3 is a schematic view of a second water-stop ring and its connection structure;

FIG. 4 is a schematic view of the screw rod and the connection structure thereof according to the present invention;

fig. 5 is a schematic view of the water-blocking oblique cone and the connection structure thereof.

In the figure: 1 valve casing, 2 flanges, 201 connecting screw hole, 3 guide cylinders, 4 closed rings, 5 first waterproof rings, 501 first fixed slot, 502 first waterproof groove, 6 second waterproof rings, 601 second fixed slot, 602 second waterproof groove, 7 oblique cones that block water, 8 connecting device, 801 first guide slider, 802 spheroid, 803 second guide slider, 804 connecting rod, 9 screws, 10 nuts, 11 hand wheels, 12 water pressure gauge, 13 arc waterproof strips, 14 waterproof rings, 15 handles.

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. 1-5, the present invention provides a technical solution: a tapered pipeline gate valve comprises a valve casing 1, a flange 2 is fixedly connected at the left end and the right end of the valve casing 1, a connecting threaded hole 201 is formed in the front side wall and the rear side wall of the flange 2, a guide cylinder 3 is fixedly connected at the top of the upper surface of the valve casing 1, a closed ring 4 is fixedly installed on the upper edge of the guide cylinder 3, a first water-blocking ring 5 and a second water-blocking ring 6 are respectively and fixedly installed on the inner wall of the valve casing 1, the right side wall of the first water-blocking ring 5 is attached to the left side wall of the second water-blocking ring 6, a first fixing groove 501 is formed in the right side wall of the first water-blocking ring 5, a second fixing groove 601 is formed in the left side wall of the second water-blocking ring 6, a water-blocking tapered cone 7 is attached to the inner walls of the first fixing groove 501 and the second fixing groove 601, a connecting device 8 is fixedly installed in the middle of the upper surface of the water-blocking tapered cone 7, a screw, 1 lateral wall left end fixed mounting water pressure gauge 12 of valve casing, water pressure gauge 12 measuring end extends to 1 intracavity of valve casing, valve casing 1 communicates with each other with 3 lower extreme insides of guide cylinder, when opening the pipe gate valve, because the impact of rivers, can will block water the oblique cone control at original inclination direction, prevent to take place to rotate because of the rotation of screw rod 9, the contained angle that will block water the oblique cone and rivers direction during the use is the obtuse angle, make rivers can produce 7 oblique ascending power to the oblique cone that blocks water when flowing through the oblique cone that blocks water 9, finally by having an ascending component force, water pressure gauge 12's measuring end is arranged in and is had water valve casing 1 one end inner chamber when the gate valve is closed, water pressure gauge 12 can show the water pressure that has the water end intracavity.

Specifically, first water-proof groove 502 is seted up along the outer edge of first water-proof ring 5 right side wall, second water-proof ring 6 left side wall is seted up along the outer edge of second water-proof groove 602, first water-proof groove 502 and the waterproof strip 13 of second water-proof groove 602 upper surface laminating arc, waterproof ring 14 of the fixed connection in arc-shaped waterproof strip 13 both ends, waterproof ring 14 lateral wall laminates the vertical lateral wall of first water-proof groove 502 and the vertical lateral wall of second water-proof groove 602 respectively, add and establish arc-shaped waterproof strip 13 and ring water ring 14 at first water-proof ring 5, the gap of second water-proof ring 6 and first water-proof ring 5, the gap between second water-proof ring 6 and the valve casing 1, prevent that rivers from overflowing to the device outside from guide cylinder 3 under the effect of pressure, the water source is wasted, destroy service environment, the leakproofness of device has been increased.

Specifically, the connecting device 8 includes a first guide block 801, a water-blocking oblique cone 7 is fixedly connected to a lower surface of the first guide block 801, an inner wall of the first guide block 801 is attached to the sphere 802, an upper end of a side wall of the sphere 802 is attached to a second guide block 803, a lower surface of the second guide block 803 is fixedly connected to an upper surface of the first guide block 801, an upper surface of the sphere 802 is fixedly connected to a connecting rod 804, a top end of the connecting rod 804 is fixedly connected to a screw 9, an outer side wall of the connecting rod 804 is attached to an inner wall of the second guide block 803, the sphere 802 rotates on an inner wall of a cavity formed by the first guide block 801 and the second guide block 803, the water-blocking oblique cone 7 is driven to move obliquely upward.

Specifically, the handle 15 is fixedly installed on the upper surface of the hand wheel 11, and the handle 15 is additionally installed, so that an operator can conveniently hold the hand wheel 11, and the comfort level of the operator in rotating the hand wheel 11 is improved.

The working principle is as follows: when the utility model discloses when using, finish the device equipment after, adopt bolted connection with flange 2 and the external world at 1 both ends of valve casing, make the contained angle that blocks water oblique cone 7 and rivers direction during the installation be the obtuse angle, make things convenient for the fixed orientation that blocks water oblique cone 7 of rivers and produce an oblique ascending power to the oblique cone 7 that blocks water, operating personnel handheld handle 15 when needs open the pipeline gate valve, it drives screw rod 9 and rotates on nut 10 to rotate hand wheel 11, spheroid 802 slides at the inner chamber wall that first slider 801 and second slider 803 are led to the slider 801, will give oblique cone 7 that blocks water along the ascending power transmission of 3 axes of guide cylinder, upwards along 3 axial of guide cylinder, break away from the cavity that constitutes with the first fixed slot 501 of first ring 5 that blocks water and the second fixed slot 601 that the ring 6 that blocks water constitutes, because the lateral wall of oblique cone 7 that blocks water, make the oblique cone 501 that blocks water and the first fixed slot 501 of first ring 5 that blocks water and the second that the second block water ring 6 constitutes of blocking water more and more the gap And the flow quantity of the water flow is gradually increased until the water blocking oblique cone 7 is completely separated from a cavity formed by the first fixing groove 501 of the first water blocking ring 5 and the second fixing groove 601 formed by the second water blocking ring 6, the flow quantity of the water flow reaches the maximum, and the gate valve can be closed by reversely rotating.

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 (4)

1. A tapered pipe gate valve, comprising a valve housing (1), characterized in that: the left end and the right end of the valve shell (1) are fixedly connected with the flange (2), the front side wall and the rear side wall of the flange (2) are provided with connecting threaded holes (201), the top of the upper surface of the valve shell (1) is fixedly connected with the guide cylinder (3), the guide cylinder (3) is provided with a sealing ring (4) along fixed installation, the inner wall of the valve shell (1) is respectively and fixedly provided with a first water-blocking ring (5) and a second water-blocking ring (6), the right side wall of the first water-blocking ring (5) is attached to the left side wall of the second water-blocking ring (6), the right side wall of the first water-blocking ring (5) is provided with a first fixing groove (501), the left side wall of the second water-blocking ring (6) is provided with a second fixing groove (601), the inner walls of the first fixing groove (501) and the second fixing groove (601) are attached to a water-blocking oblique cone (7), the middle part of the upper surface of the water-blocking oblique cone (7, screw rod (9) lateral wall spiro union nut (10), nut (10) lateral wall fixed connection guide cylinder (3) inner wall, department fixed mounting hand wheel (11) in the middle of screw rod (9) upper surface, valve casing (1) lateral wall left end fixed mounting water pressure gauge (12), water pressure gauge (12) measuring end extends to valve casing (1) intracavity.

2. The tapered pipe gate valve of claim 1, further comprising: first watertight fittings (502) are seted up along seting up to first watertight fittings (5) right side wall outward, second watertight fittings (602) are seted up along seting up to second watertight fittings (6) left side wall outward, first watertight fittings (502) and second watertight fittings (602) upper surface laminating arc waterproof strip (13), waterproof strip (13) both ends fixed connection waterproof ring (14) of arc, waterproof ring (14) lateral wall is laminated first watertight fittings (502) vertical lateral wall and the vertical lateral wall of second watertight fittings (602) respectively.

3. The tapered pipe gate valve of claim 1, further comprising: connecting device (8) are including first slider (801) of leading, first slider (801) lower surface fixed connection oblique awl (7) that blocks water of leading, first slider (801) inner wall laminating spheroid (802) of leading, slider (803) are led to laminating second on spheroid (802) lateral wall, slider (803) upper surface is led to second slider (803) lower surface fixed connection first slider (801) of leading, surface fixed connection connecting rod (804) on spheroid (802), connecting rod (804) top fixed connection screw rod (9), slider (803) inner wall is led to connecting rod (804) lateral wall laminating second.

4. The tapered pipe gate valve of claim 1, further comprising: and a handle (15) is fixedly arranged on the upper surface of the hand wheel (11).

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