Flange type gate valve

Abstract

The utility model discloses a flange type gate valve which comprises a gate valve body. A buffer mechanism is arranged in the liquid inlet pipe, the buffer mechanism comprises a spring, a connecting column and a buffer plate, and the connecting column is slidably connected with the liquid inlet pipe; a cleaning mechanism is arranged in the liquid inlet pipe and comprises a filter plate, an interception plate and filter holes. According to the flange type gate valve, when fluid passes through the liquid inlet pipe, the fluid can impact the buffer plate, in the upward moving process of the buffer plate, a channel in the liquid inlet pipe can be gradually enlarged, the buffer effect is achieved, the filter plate is slidably connected with the mounting groove, and when impurities in the filter plate need to be cleaned, the filter plate is prevented from falling off. The filter plate can be taken out of the mounting groove by opening the cleaning cover, operation is convenient, when fluid passes through the filter plate, impurities in the fluid can be filtered out by the filter plate, the intercepting plate can prevent the impurities from remaining in the liquid inlet pipe when the filter plate is lifted upwards, and the blocking effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gate valve, concretely is a flange gate valve. BACKGROUND

[0002] The flange gate valve is connected with the pipeline system through the flange connection mode, and the working principle of the flange gate valve is based on the up-down movement of the gate plate to control the on-off of the fluid. When the lifting height of the gate plate is equal to 1 times the valve pass diameter, the fluid passage is completely smooth. On the contrary, when the gate plate is lowered and closely attached to the valve seat, the fluid passage is cut off, and the valve is closed. The flange gate valve also has the advantages of simple structure, small size, light weight, easy maintenance and the like. The flange gate valve is a valve type with excellent performance and wide applicability, and plays an important role in industrial production.

[0003] Referring to Chinese patent authorized publication No. CN221824602U, authorized publication date is October 11, 2024, a kind of flange sealing gate valve is disclosed, the utility model can be directly glued to sealing rubber ring or directly to flange plate by manual mode, and then make the hole of sealing rubber ring and the connecting barrel and connecting ring on flange plate support limit, so that without the assistance of bolt, sealing rubber ring can also be fixed;

[0004] But the utility model in the process of using, lack buffer mechanism, when the gate plate is opened, fluid will directly impact on the gate plate, long-term use can cause damage to the gate plate, and fluid may contain impurities, impurities can cause wear to the gate plate, not conducive to long-term use.

[0005] Therefore, we propose a kind of flange gate valve to solve the problems raised in the above. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of flange gate valve to solve the problems raised in the above background art that the utility model in the process of using, lack buffer mechanism, when the gate plate is opened, fluid will directly impact on the gate plate, long-term use can cause damage to the gate plate, and fluid may contain impurities, impurities can cause wear to the gate plate, not conducive to long-term use.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of flange gate valve, comprising: gate valve body;

[0008] Further comprising:

[0009] Liquid inlet pipe, the inside of the liquid inlet pipe is provided with buffer mechanism, wherein buffer mechanism includes spring, connecting column and buffer plate, the connecting column is slidably connected with liquid inlet pipe, and the lower side of connecting column is provided with buffer plate;

[0010] The inside of the liquid inlet pipe is provided with a cleaning mechanism, wherein the cleaning mechanism comprises a filter plate, an intercepting plate and filter holes; the inside right side of the filter plate is provided with the intercepting plate; the left side of the filter plate is provided with the filter holes which are arranged in an array.

[0011] Preferably, the inside of the gate valve body is provided with a slot; the slot is connected with a gate plate clamping groove; the gate plate is rotationally connected with a threaded column; and the threaded column is threadedly connected with the gate valve body.

[0012] Preferably, the right side of the gate valve body is provided with a liquid inlet pipe; the right side of the liquid inlet pipe is provided with a flange plate; and the outside of the flange plate is provided with an anti-skid ring.

[0013] Preferably, the upper side of the liquid inlet pipe is provided with a hollow column; the inside of the hollow column is provided with a spring; and the spring is located on the upper side of the connecting column.

[0014] Preferably, the upper side of the liquid inlet pipe is provided with a mounting slot; the upper side of the mounting slot is rotationally connected with a cleaning cover; and the inside of the mounting slot is slidingly connected with a filter plate.

[0015] Preferably, the left side of the gate valve body is provided with a liquid outlet pipe; the left side of the liquid outlet pipe is provided with a flange plate and an anti-skid ring.

[0016] Compared with the prior art, the flange type gate valve has the following beneficial effects: when fluid passes through the liquid inlet pipe, the fluid impacts the buffer plate; the passage inside the liquid inlet pipe gradually increases during the upward movement of the buffer plate, thereby playing a buffering role; the filter plate is slidingly connected with the mounting slot; when the impurities inside the filter plate need to be cleaned, the filter plate can be taken out from the mounting slot by opening the cleaning cover, and the operation is relatively convenient; when the fluid passes through the filter plate, the impurities in the fluid are filtered by the filter plate; the intercepting plate can prevent the impurities from remaining in the liquid inlet pipe when the filter plate is lifted upward, thereby playing a shielding role.

[0017] 1. The gate valve body, the slot and the gate plate are arranged; the inside of the gate valve body is provided with the slot; the slot is connected with the gate plate clamping groove; when the gate plate is lifted by the threaded column, the fluid can flow through the gate valve body, and the operation is convenient.

[0018] 2. The liquid inlet pipe, the flange plate and the anti-skid ring are arranged; the side of the flange plate is provided with the anti-skid ring; the anti-skid ring can increase the contact area with other flanges, thereby playing an anti-skid role.

[0019] 3. The spring, the connecting column and the buffer plate are arranged; when fluid passes through the liquid inlet pipe, the fluid impacts the buffer plate; the buffer plate moves upward; the buffer plate presses the spring through the connecting column, so that the spring is elastically deformed; during the upward movement of the buffer plate, the passage inside the liquid inlet pipe gradually increases, thereby playing a buffering role; the fluid passing through the gate plate at a high speed can be prevented from damaging the gate plate.

[0020] 4. The installation slot, cleaning cover and filter plate are arranged, the filter plate is slidably connected with the installation slot, when the impurities inside the filter plate need to be cleaned, the filter plate can be taken out from the installation slot by opening the cleaning cover, and the operation is more convenient.

[0021] 5. The filter plate, intercepting plate and filter hole are arranged, when fluid passes through the filter plate, the impurities in the fluid are filtered by the filter plate, the intercepting plate prevents the impurities from remaining in the liquid inlet pipe when the filter plate is lifted, and the intercepting plate plays a shielding role, so that damage of the impurities to the gate valve body is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a right view of the utility model;

[0023] Figure 2 It is a filter plate of the utility model;

[0024] Figure 3 It is a three-dimensional structure schematic view of the utility model;

[0025] Figure 4 It is a left view of the utility model;

[0026] Figure 5 It is a connection structure schematic view of the installation slot and the cleaning cover of the utility model.

[0027] In the drawing: 1, gate valve body; 2, slot; 3, gate plate; 4, threaded column; 5, liquid inlet pipe; 6, flange plate; 7, anti-skid ring; 8, hollow column; 9, spring; 10, connecting column; 11, buffer plate; 12, installation slot; 13, cleaning cover; 14, filter plate; 15, intercepting plate; 16, filter hole; 17, liquid outlet pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. Specific embodiment one

[0030] This embodiment is a flange type gate valve.

[0031] As Figure 1 And Figure 4As shown, the inside of the gate valve body 1 is provided with a slot 2, and the slot 2 is connected with the gate plate 3, and the gate plate 3 is connected with the threaded column 4, and the threaded column 4 is connected with the gate valve body 1, and the right side of the gate valve body 1 is provided with a liquid inlet pipe 5, and the right side of the liquid inlet pipe 5 is provided with a flange plate 6, and the outside of the flange plate 6 is provided with an anti-skid ring 7.

[0032] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the upper side of the liquid inlet pipe 5 is provided with a hollow column 8, and the inside of the hollow column 8 is provided with a spring 9, and the spring 9 is located on the upper side of the connecting column 10, and the connecting column 10 is connected with the liquid inlet pipe 5, and the lower side of the connecting column 10 is provided with a buffer plate 11, and the upper side of the liquid inlet pipe 5 is provided with a mounting groove 12, and the mounting groove 12 is connected with a cleaning cover 13, and the inside of the mounting groove 12 is connected with a filter plate 14, and the inside of the filter plate 14 is provided with an intercepting plate 15, and the left side of the filter plate 14 is provided with a filter hole 16, and the filter hole 16 is arranged in an array, and the left side of the gate valve body 1 is provided with a liquid outlet pipe 17, and the left side of the liquid outlet pipe 17 is provided with a flange plate 6 and an anti-skid ring 7.

[0033] It should be noted that when using the device, rotating the threaded column 4 on the upper side of the gate plate 3, the threaded column 4 will take the gate plate 3 up, when the gate plate 3 is disconnected with the slot 2, the fluid will be transported from the liquid inlet pipe 5 into the gate valve body 1, and then discharged from the liquid outlet pipe 17, and the side of the liquid inlet pipe 5 and the liquid outlet pipe 17 is provided with a flange plate 6 and an anti-skid ring 7, the anti-skid ring 7 can increase the contact area with other flanges, and play the role of anti-skid and sealing. Specific example two

[0035] This embodiment is to solve the problem that the gate valve body 1 is damaged when the fluid flow rate is too large during work.

[0036] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , when the liquid inlet pipe 5 has fluid passing through, the fluid will first impact the buffer plate 11, and the buffer plate 11 will move up, and in the process of moving up, the buffer plate 11 will extrude the spring 9 through the connecting column 10, at this time the spring 9 will be elastically deformed, and in the process of moving up, the channel in the liquid inlet pipe 5 will gradually increase, and the fluid conveying speed will also gradually increase, playing the role of buffering, preventing the fluid from passing through the gate plate 3 too quickly to cause damage to the gate plate 3, thereby protecting the gate valve body 1, and prolonging the service life.

[0037] In addition, when the fluid stops being delivered, the spring 9 restores the elastic deformation and pushes the connecting column 10 to move downward in the hollow column 8, thereby playing a buffering role when the fluid is delivered next time. Embodiment three

[0039] This embodiment is to solve the problem of damage to the gate valve body 1 caused by impurities.

[0040] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , when the fluid passes through the inside of the liquid inlet pipe 5, it will contact the filter plate 14, and the filter plate 14 will filter the fluid, and the fluid without impurities will be delivered to the gate valve body 1 from the filter hole 16, and then discharged from the liquid outlet pipe 17, and the impurities will be blocked by the filter plate 14 and stored between the filter plate 14 and the intercepting plate 15 under the action of gravity. After the gate plate 3 falls, the fluid will stop moving, and the impurities will all fall on the inside of the intercepting plate 15 and the filter plate 14. The intercepting plate 15 can also prevent the impurities from remaining in the liquid inlet pipe 5 when the filter plate 14 is lifted up, thereby avoiding damage to the gate valve body 1 caused by impurities.

[0041] In addition, when cleaning the impurities, all channels are closed, the fluid stops being delivered, the threaded rod directly connecting the cleaning cover 13 and the mounting groove 12 is rotated to open the cleaning cover 13, then the filter plate 14 is lifted up to take out the filter plate 14 from the inside of the liquid inlet pipe 5, and the impurities can be cleaned, which is convenient to operate.

[0042] The contents not described in detail in the specification belong to the prior art known to those skilled in the art. The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art. The mechanical parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0043] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A flanged gate valve, comprising: Gate valve body (1); Its characteristic is that it further includes: The liquid inlet pipe (5) is provided with a buffer mechanism inside, wherein the buffer mechanism includes a spring (9), a connecting column (10) and a buffer plate (11). The connecting column (10) is slidably connected to the liquid inlet pipe (5), and a buffer plate (11) is provided on the lower side of the connecting column (10). The inlet pipe (5) is equipped with a cleaning mechanism, which includes a filter plate (14), an interceptor plate (15) and filter holes (16). The filter plate (14) is equipped with an interceptor plate (15) on the right side inside, and the filter plate (14) is equipped with filter holes (16) on the left side, and the filter holes (16) are arranged in an array.

2. A flanged gate valve according to claim 1, characterized in that: The gate valve body (1) has a slot (2) inside, and the slot (2) is connected to the gate plate (3) in a slotted manner. The gate plate (3) is rotatably connected to the threaded column (4), and the threaded column (4) is threadedly connected to the gate valve body (1).

3. A flanged gate valve according to claim 1, characterized in that: The gate valve body (1) is provided with an inlet pipe (5) on the right side, and a flange (6) is provided on the right side of the inlet pipe (5), and an anti-slip ring (7) is provided on the outside of the flange (6).

4. A flanged gate valve according to claim 3, characterized in that: A hollow column (8) is provided on the upper side of the liquid inlet pipe (5), and a spring (9) is provided inside the hollow column (8), and the spring (9) is located on the upper side of the connecting column (10).

5. A flanged gate valve according to claim 1, characterized in that: The upper side of the liquid inlet pipe (5) is provided with an installation groove (12), and a cleaning cover (13) is rotatably connected to the upper side of the installation groove (12), and a filter plate (14) is slidably connected inside the installation groove (12).

6. A flanged gate valve according to claim 1, characterized in that: The gate valve body (1) is provided with a drain pipe (17) on the left side, and a flange (6) and an anti-slip ring (7) are provided on the left side of the drain pipe (17).

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