Gate valve casting with parallel double-gate-plate elastic structure

Abstract

The utility model discloses a parallel double-gate-plate elastic structure gate valve casting, and relates to the technical field of gate valves. A parallel double-gate-plate elastic structure gate valve casting comprises a valve body, a feeding pipe is fixedly connected to one side of the valve body, a discharging pipe is fixedly connected to the side, away from the feeding pipe, of the valve body, a valve deck is fixedly connected to the top of the valve body, four mounting rods are fixedly mounted on the valve deck, and air cylinders are fixedly connected to the tops of the four mounting rods. According to the gate valve, the dirt scraping structure is arranged in the valve body, the dirt scraping plate is tightly attached to the surface of the parallel gate plate, in the moving process of the gate plate, attached dirt is scraped off in time, dirt accumulation is effectively prevented, and the service life of the gate plate is prolonged. The gate plate and the sealing strip on the inner bottom wall of the valve body are always kept in good contact, the sealing performance is maintained, the fluid leakage condition is greatly reduced, and the service life of the gate valve is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to gate valve technical field, especially in parallel double gate board elastic structure gate valve casting. BACKGROUND

[0002] Parallel double gate board elastic structure gate valve as a kind of common fluid control equipment, in numerous industrial fields, such as petroleum, chemical industry, water treatment etc. have been widely used. Its parallel double gate board design cooperation elastic structure, so that the valve can better adapt to the pressure change of medium in pipeline in the process of opening and closing, guarantee the sealing performance of valve.

[0003] The existing parallel double gate board elastic structure gate valve in the process of use, when gate valve is used to transport the fluid containing impurity, particle and other dirty medium, these dirt is extremely easy to adhere to the surface of parallel double gate board, with the increase of use time, dirt is continuously accumulated, gradually destroys the sealing surface between gate board and valve body, after the decline of sealing performance, it will lead to fluid leakage, and then reduce the service life of gate valve, therefore, we propose a kind of parallel double gate board elastic structure gate valve casting. UTILITY MODEL CONTENTS

[0004] The utility model discloses a parallel double gate board elastic structure gate valve casting, can solve the problem that the existing parallel double gate board elastic structure gate valve in the process of use, when gate valve is used to transport the fluid containing impurity, particle and other dirty medium, these dirt is extremely easy to adhere to the surface of parallel double gate board, with the increase of use time, dirt is continuously accumulated, gradually destroys the sealing surface between gate board and valve body, after the decline of sealing performance, it will lead to fluid leakage, and then reduce the service life of gate valve.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: parallel double gate board elastic structure gate valve casting, including:

[0006] Valve body, the side fixedly connected with feed pipe of valve body, the side fixedly connected with discharge pipe of valve body away from feed pipe,

[0007] Valve cover is fixedly connected on the top of valve body, four installation rods are fixedly installed on valve cover, and cylinder is fixedly connected on the top of four installation rods, and cylinder is installed on the top of valve body through four installation rods, and the telescopic end of cylinder extends into the inside of valve body and is fixedly connected with parallel gate board, and the inside of valve body is provided with dirty scraping structure,

[0008] Dirty scraping structure includes three bolts and dirty scraping plate, three through holes are formed in dirty scraping plate, three bolts are fixedly installed in the inside of valve body through corresponding through hole, and the scraping side of dirty scraping plate is in contact with the surface of parallel gate board.

[0009] Preferably, the number of the scraping structures is two, and the two scraping structures are symmetrically arranged on two sides of the parallel gate plate.

[0010] Preferably, the inner bottom wall of the valve body is fixedly connected with two sealing strips.

[0011] Preferably, a maintenance opening is arranged on one side of the valve body, and a maintenance plate is bolted on the maintenance opening.

[0012] Preferably, the feeding pipe and the discharging pipe are in communication with the interior of the valve body.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、the parallel double gate plate elastic structure gate valve casting, the gate valve is scraped through setting scraping structure in the valve body, and the scraping plate is tightly attached to the surface of the parallel gate plate, dirt adhered is scraped off in time in the gate plate moving process, dirt accumulation is effectively prevented, the sealing strip between the gate plate and the inner bottom wall of the valve body is ensured to always keep good contact, the sealing performance is maintained, fluid leakage is greatly reduced, and the service life of the gate valve is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further illustrated below in combination with the drawings and examples:

[0016] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is the parallel gate plate structure schematic view of the utility model;

[0018] Figure 3 It is the valve body cross section structure schematic view of the utility model;

[0019] Figure 4 It is the scraping plate structure schematic view of the utility model.

[0020] Fig. 1 valve body, 2, feeding pipe, 3, discharging pipe, 4, valve cover, 5, maintenance plate, 6, maintenance opening, 7, air cylinder, 8, parallel gate plate, 9, scraping plate, 10, sealing strip, 11, bolt, 12, through hole, 13, mounting rod. DETAILED DESCRIPTION

[0021] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0022] In the description of the utility model, it is understood that the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right etc. based on the orientation or positional relationship shown in the drawing, is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0023] In the description of the utility model, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If the first and second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0024] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0025] Please refer to Figures 1-4 The utility model provides a technical scheme: parallel double gate plate elastic structure gate valve casting, comprising:

[0026] The valve body 1 is fixedly connected with the feed pipe 2 on one side, and the discharge pipe 3 is fixedly connected with the valve body 1 away from the feed pipe 2, and the feed pipe 2 and the discharge pipe 3 are communicated with the inside of the valve body 1;

[0027] The valve body 1 is fixedly connected with the valve cover 4 on the top, four mounting rods 13 are fixedly installed on the valve cover 4, and the air cylinder 7 is fixedly connected on the top of the four mounting rods 13. The air cylinder 7 is installed on the top of the valve body 1 through the four mounting rods 13, the telescopic end of the air cylinder 7 extends into the inside of the valve body 1 and is fixedly connected with the parallel gate plate 8, and the inside of the valve body 1 is provided with a scraping structure.

[0028] The scraping structure comprises three bolts 11 and a scraping plate 9, three through holes 12 are formed in the scraping plate 9, the three bolts 11 are fixedly installed in the inside of the valve body 1 through the corresponding through holes 12, the scraping side of the scraping plate 9 is in contact with the surface of the parallel gate plate 8, the number of the scraping structure is two, and the two scraping structures are symmetrically arranged on the two sides of the parallel gate plate 8.

[0029] The inner bottom wall of the valve body 1 is fixedly connected with two sealing strips 10, and the one side of the valve body 1 is provided with an access hole 6, and the access hole 6 is bolted with an access plate 5.

[0030] Further, in the use of the device, fluid flows into the valve body 1 through the feed pipe 2, if the parallel gate plate 8 is in the open state, the fluid can pass through the valve body 1 smoothly, and flow out from the discharge pipe 3, which is also in communication with the inside of the valve body 1, realizing the delivery of fluid, when it is necessary to cut off the fluid, start the air cylinder 7, the air cylinder 7 contracts, drives the parallel gate plate 8 to move downward, until the parallel gate plate 8 is tightly attached to the two sealing strips 10 of the inner bottom wall of the valve body 1, blocking the flow of fluid, realizing the closing of the gate valve.

[0031] When the parallel gate plate 8 moves upward, because the scraping plate 9 of the scraping structure is fixed in the valve body by three bolts 11, and the scraping side of the scraping plate 9 is in contact with the surface of the parallel gate plate 8, when the parallel gate plate 8 rises, the scraping plate 9 will scrape the surface of the parallel gate plate 8, and the dirt attached to the parallel gate plate 8 will be scraped off, and the scraped dirt will be discharged from the discharge pipe under the action of gravity.

[0032] The parallel double gate plate elastic structure gate valve is the existing equipment, which can be specifically referred to model: Yongxiao Z641H.

[0033] The gate valve sets the scraping structure in the valve body 1, the scraping plate 9 is tightly attached to the surface of the parallel gate plate 8, and the attached dirt is scraped off in time during the movement of the gate plate, effectively preventing the accumulation of dirt, ensuring that the sealing strip 10 of the gate plate and the inner bottom wall of the valve body 1 always maintains good contact, maintains the sealing performance, greatly reduces the fluid leakage, and further improves the service life of the gate valve.

[0034] Structure description: maintenance plate 5: installed on the maintenance opening 6 by bolts, used to close the maintenance opening 6, when it is necessary to maintain the inside of the valve body 1, the maintenance plate 5 can be removed, so that the operator can enter the valve body to check and maintain;

[0035] Scraping plate 9: fixed in the valve body 1 by three bolts 11, the scraping side is in contact with the surface of the parallel gate plate 8, during the upward movement of the parallel gate plate 8, the surface of the parallel gate plate 8 is scraped, the attached dirt is scraped off, the surface of the parallel gate plate 8 is kept clean, and the accumulation of dirt is prevented from damaging the sealing surface;

[0036] Sealing strip 10: fixedly connected to the inner bottom wall of the valve body 1, when the parallel gate plate 8 is lowered and tightly attached to it, a seal is formed to prevent fluid from passing through, ensuring the sealing performance of the gate valve;

[0037] Bolt 11: passes through the through hole 12 on the scraping plate 9, and fixes the scraping plate 9 in the valve body 1, ensuring that the scraping plate 9 is installed stably and can stably scrape the surface of the parallel gate plate 8 during the movement of the parallel gate plate 8.

[0038] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art person who has possessed under the premise of not departing from the utility model tenet.

Claims

1. Parallel double-dam elastic structure gate valve casting, characterized in that, Include: The valve body (1), one side of the valve body (1) is fixedly connected with the feed pipe (2), the side of the valve body (1) away from the feed pipe (2) is fixedly connected with the discharge pipe (3); The top of the valve body (1) is fixedly connected with the valve cover (4), the valve cover (4) is fixedly installed with four installation rods (13), the air cylinder (7) is fixedly connected at the top of the four installation rods (13), and the air cylinder (7) is installed at the top of the valve body (1) through the four installation rods (13); Wherein, the telescopic end of the air cylinder (7) extends into the inside of the valve body (1) and is fixedly connected with the parallel gate plate (8), and the inside of the valve body (1) is provided with a scraping structure; The scraping structure includes three bolts (11) and a scraping plate (9), the scraping plate (9) is provided with three through holes (12), the three bolts (11) are fixedly installed in the inside of the valve body (1) through the corresponding through holes (12), and the scraping side of the scraping plate (9) is in contact with the surface of the parallel gate plate (8).

2. The parallel double-disk resilient seat gate valve casting of claim 1, wherein: The number of the scraping structure is two, and the two scraping structures are symmetrically arranged on both sides of the parallel gate plate (8).

3. The parallel double-disk resilient seat gate valve casting of claim 1, wherein: The inner bottom wall of the valve body (1) is fixedly connected with two sealing strips (10).

4. The parallel double-disk resilient seat gate valve casting of claim 1, wherein: The side of the valve body (1) is provided with an access hole (6), and the access plate (5) is bolted on the access hole (6).

5. The parallel double-disk resilient seat gate valve casting of claim 1, wherein: The feed pipe (2) and the discharge pipe (3) are communicated with the inside of the valve body (1).

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