CN218267300U

CN218267300U - Flange gate valve

Info

Publication number: CN218267300U
Application number: CN202220720823.1U
Authority: CN
Inventors: 梁华勇
Original assignee: Hubei Jian'an Fire Valve Technology Co ltd
Current assignee: Hubei Jian'an Fire Valve Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2023-01-10
Anticipated expiration: 2032-03-29

Abstract

The utility model discloses a flanged gate valve, including flange body and flashboard, the vertical flashboard that is provided with in the upper end of flange internal portion, the intermediate position department of flange body top installs the slot gate valve cap through interior hexagonal seal screw, and the vertical connection lead screw of installing on the slot gate valve cap, the bottom and the flashboard of connection lead screw are connected, and the hand wheel is installed through hand wheel fixed screw and the solid gasket of hand wheel on the top of connection lead screw, cup jointed the gland inner seal on the connection lead screw of slot gate valve cap top. The utility model adopts the straight-through flange body, the flowing direction of the medium is not changed when the medium flows through the valve, and the flowing resistance to the medium is smaller; the flange body is sequentially provided with a groove gate valve cap and a gland inner seal, the double seals are adopted, the connecting screw rod drives the flashboard to move up and down by rotating the hand wheel, the sealing surface of the flashboard is tightly pressed with the valve seat on the flange body, and a good sealing effect is achieved.

Description

Flange gate valve

Technical Field

The utility model relates to the technical field of valves, specifically be flanged gate valve.

Background

The gate valve is the most commonly used shut-off valve, which is mainly used for connecting or shutting off the medium in the pipeline and is not suitable for regulating the medium flow. The valve is used on an industrial pipeline, and controls the flow and the blockage of a medium through the opening and the closing of the flashboard; the pipeline medium switching device can be applied to pipelines under various working conditions such as petroleum, chemical engineering, electric power and the like, and is suitable for the following mediums: water, oil, steam, etc.

However, the existing gate valve can increase the flow resistance in the medium channel when in use, has a common sealing effect, is easy to cause the problem of medium leakage, has short service life and influences the normal production task.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flange gate valve to solve the current gate valve that proposes among the above-mentioned background art and can increase the flow resistance in the medium passage when using, sealed effect is general moreover, appears the problem of medium leakage easily, and life is shorter, influences the problem of normal production task simultaneously.

In order to achieve the above purpose, the utility model provides a following technical scheme: flanged gate valve, including flange body and flashboard, the vertical flashboard that is provided with in the upper end of flange internal portion, the intermediate position department of flange body top installs the sluice valve cap through interior hexagonal gland packing screw, and the vertical connecting screw rod of installing on the sluice valve cap, connecting screw rod's bottom and flashboard are connected, and the hand wheel is installed through the solid gasket of hand wheel set screw and hand wheel on connecting screw rod's the top, cup jointed the gland inner seal on the connecting screw rod of sluice valve cap top, and the top at the sluice valve cap is passed through sealing connection screw and gland screw gasket fixed mounting at gland inner seal's both ends.

Preferably, the both sides of flashboard top all are provided with the draw-in groove that is the L type, and the draw-in groove internal fixation has lead screw coupling nut, lead screw coupling nut and the bottom threaded connection who connects the lead screw, the lead screw coupling nut's of being convenient for dismantlement to be convenient for carry out the dismouting to the flashboard and maintain.

Preferably, the vertical plane on which the flashboard is located is perpendicular to the flowing direction of the flange body, the flange body is internally provided with a straight-through structure, flowing resistance of a medium cannot be increased, and the middle position of the flashboard is vertically provided with a reinforcing rib to increase the structural strength of the flashboard.

Preferably, be provided with rubber seal between slot gate valve cap and the flange body, and rubber seal and hexagon socket head cap sealing screw threaded connection guarantee the leakproofness of being connected between slot gate valve cap and the flange body, avoid appearing the phenomenon of seepage.

Preferably, 1O-shaped ethylene propylene diene monomer sealing ring and 3O-shaped silica gel sealing rings are sequentially arranged between the groove gate valve cap and the gland inner seal from bottom to top, so that the sealing performance of the joint between the groove gate valve cap and the gland inner seal is ensured.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The straight-through flange body is adopted, the flowing direction of the medium is not changed when the medium flows through the valve, and the flowing resistance to the medium is small;

(2) The flashboard is vertical to the flowing direction of the medium, and compared with a stop valve, the opening and closing of the flashboard are labor-saving;

(3) Both sides of the flashboard have the function of intercepting, and a medium can flow through the two sides of the gate valve in any direction, so that the purpose of connection or disconnection can be achieved, and the flashboard is convenient to install and suitable for a pipeline with the medium flow direction capable of being changed;

(4) The flange body is sequentially provided with a groove gate valve cap and a gland inner seal, the double seals are adopted, the connecting screw rod drives the flashboard to move up and down by rotating the hand wheel, the sealing surface of the flashboard is tightly pressed with the valve seat on the flange body, and a good sealing effect is achieved.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

fig. 3 is a side view schematic structure diagram of the present invention;

fig. 4 is a schematic top view of the present invention;

in the figure: 1. a flange body; 2. a trench gate valve cap; 3. a shutter plate; 4. the screw rod is connected with a nut; 5. a hexagon socket head cap screw; 6. a rubber seal ring; 7. an O-shaped silica gel sealing ring; 8. connecting a screw rod; 9. an O-shaped ethylene propylene diene monomer sealing ring; 10. sealing the connecting screw; 11. a hand wheel fixing screw; 12. a gland screw gasket; 13. sealing the inside of the gland; 14. fixing a gasket by a hand wheel; 15. a handwheel.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. 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. 1-4, the present invention provides an embodiment: the flange gate valve comprises a flange body 1 and a gate plate 3, wherein the gate plate 3 is vertically arranged at the upper end inside the flange body 1, the sealing surface of the gate plate 3 is matched with a valve seat on the flange body 1 to realize the purpose of cutting, the vertical plane where the gate plate 3 is located is vertical to the flow direction of the flange body 1, the inside of the flange body 1 is of a straight-through structure, the flow resistance of a medium cannot be increased, and a reinforcing rib is vertically arranged at the middle position of the gate plate 3 to increase the structural strength of the gate plate 3;

a groove gate valve cap 2 is arranged at the middle position above the flange body 1 through an inner hexagonal sealing screw 5 and used for sealing the installation position of a gate plate 3 above the flange body 1, a rubber sealing ring 6 is arranged between the groove gate valve cap 2 and the flange body 1, the sealing property of the connection between the groove gate valve cap 2 and the flange body 1 is ensured, the leakage phenomenon is avoided, and the rubber sealing ring 6 is in threaded connection with the inner hexagonal sealing screw 5, so that the installation firmness of the rubber sealing ring 6 is improved;

a connecting screw rod 8 is vertically arranged on the groove gate valve cap 2, the connecting screw rod 8 is in threaded connection with the groove gate valve cap 2, the bottom end of the connecting screw rod 8 is connected with the gate plate 3, two sides above the gate plate 3 are both provided with L-shaped clamping grooves, screw rod connecting nuts 4 are fixed in the clamping grooves, the screw rod connecting nuts 4 are in threaded connection with the bottom end of the connecting screw rod 8, the screw rod connecting nuts 4 are convenient to disassemble, and therefore the gate plate 3 is convenient to disassemble and maintain;

a hand wheel 15 is installed at the top end of the connecting screw rod 8 through a hand wheel fixing screw 11 and a hand wheel fixing gasket 14, a gland inner seal 13 is sleeved on the connecting screw rod 8 above the groove gate valve cap 2 and used for sealing the joint of the top of the groove gate valve cap 2 and the connecting screw rod 8, and two ends of the gland inner seal 13 are fixedly installed at the top of the groove gate valve cap 2 through a seal connecting screw 10 and a gland screw gasket 12;

1O-shaped ethylene propylene diene monomer sealing ring 9 and 3O-shaped silica gel sealing rings 7 are sequentially arranged between the groove gate valve cap 2 and the gland inner seal 13 from bottom to top, so that the sealing performance of the joint between the groove gate valve cap 2 and the gland inner seal 13 is ensured.

When the embodiment of the application is used, the two ends of the flange body 1 are installed in a pipeline, the connecting screw rod 8 is driven to rotate through the rotary hand wheel 15, the bottom end of the connecting screw rod 8 rotates in the inner portion of the screw rod connecting nut 4, and along with the rotation of the connecting screw rod 8, the length of the connecting screw rod 8 below the groove gate valve cap 2 is gradually increased or reduced, so that the gate plate 3 is driven to lift, and the pipeline is cut off or opened.

Claims

1. Flanged gate valve, its characterized in that: including flange body (1) and flashboard (3), the vertical flashboard (3) that is provided with in the upper end of flange body (1) inside, groove gate valve cap (2) are installed through interior hexagonal sealing screw (5) to the intermediate position department of flange body (1) top, and vertical lead screw (8) of installing on groove gate valve cap (2), the bottom and flashboard (3) of lead screw (8) are connected, and hand wheel (15) are installed through hand wheel fixed screw (11) and hand wheel solid gasket (14) in the top of lead screw (8), cup jointed gland inner seal (13) on the lead screw (8) of groove gate valve cap (2) top, and the top at groove gate valve cap (2) is passed through sealing connection screw (10) and gland screw gasket (12) fixed mounting at the both ends of gland inner seal (13).

2. The flanged gate valve of claim 1, wherein: the two sides of flashboard (3) top all are provided with the draw-in groove that is the L type, and the draw-in groove internal fixation has lead screw coupling nut (4), lead screw coupling nut (4) and the bottom threaded connection of connecting screw rod (8).

3. The flanged gate valve of claim 1, wherein: the vertical plane that flashboard (3) place is perpendicular to the circulation direction mutually of flange body (1), and the intermediate position department of flashboard (3) is vertical to be provided with the strengthening rib.

4. The flanged gate valve of claim 1, wherein: be provided with rubber seal (6) between slot gate valve cap (2) and the flange body (1), and rubber seal (6) and hexagon socket head cap sealing screw (5) threaded connection.

5. The flanged gate valve of claim 1, wherein: and 1O-shaped ethylene propylene diene monomer sealing ring (9) and 3O-shaped silica gel sealing rings (7) are sequentially arranged between the groove gate valve cap (2) and the gland inner seal (13) from bottom to top.