Gate valve

Abstract

The utility model relates to the technical field of valves, and discloses a gate valve which comprises a gate valve part and a driving part, the gate valve part comprises a valve body and a gate plate, the valve body is provided with a through hole, connecting flanges are arranged at the two ends of the through hole, and the driving part is used for driving the gate plate to move up and down to control opening and closing of the through hole. A filter assembly is arranged on the flashboard in a sliding mode, the filter assembly is used for filtering liquid flowing to the flashboard, a trigger piece is arranged on the flashboard, and when the flashboard and the filter assembly move relatively, the trigger piece drives the filter assembly to vibrate. The problems that in the prior art, a valve body needs to be dismantled regularly, a filter plate needs to be cleaned, and the later maintenance workload is large can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially relates to a gate valve. BACKGROUND

[0002] The gate valve is a kind of valve using gate or wedge-shaped disc, disc is perpendicular to the fluid and moves to open or prevent the fluid in pipeline from flowing.The sundries in liquid enter valve body, and valve body is easily blocked, in the prior art, to avoid the blocking condition, filter structure is mostly arranged at both ends of valve body.

[0003] Such as Chinese patent

public number: CN220118686U

[0004] But the device needs to be periodically removed valve body, filter plate is cleaned, otherwise filter plate is blocked after affecting liquid flow, later maintenance workload is large. INVENTION CONTENTS

[0005] Therefore, the utility model aims at providing a kind of gate valve, solve the problem of prior art, need to be periodically removed valve body, filter plate is cleaned, later maintenance workload is large.

[0006] The utility model solves the above-mentioned technical problem by the following technical means:

[0007] A kind of gate valve, including gate valve part and drive part, the gate valve part includes valve body and gate plate, the valve body is provided with through-hole, the both ends of the through-hole are provided with connecting flange, the drive part is used to drive gate plate to move up and down and control the opening and closing of through-hole, filter assembly is slidably arranged on the gate plate, the filter assembly is used to filter liquid to the gate plate, trigger piece is arranged on the gate plate, when the gate plate moves relative to filter assembly, the trigger piece drives filter assembly to vibrate.

[0008] By setting the above structure, when drive part controls gate plate to move up and down, gate plate drives filter assembly to vibrate by trigger piece, so that sundries adsorbed on filter assembly is separated, without removing valve body, opening and closing gate valve can automatically clean filter assembly, later maintenance is simple, convenient, fast.

[0009] Further, the first limiting piece and the second limiting piece are fixedly arranged on the gate plate, the connecting block is fixedly connected to the filtering assembly, the connecting block is slidingly arranged between the first limiting piece and the second limiting piece, when the connecting block is located between the first limiting piece and the second limiting piece during the movement of the gate plate, the gate plate and the filtering assembly move relatively, when the first limiting piece abuts against the connecting block, the first limiting piece pushes the connecting block to move downward, and when the second limiting piece abuts against the connecting block, the second limiting piece pushes the connecting block to move upward.

[0010] Through the above structure, when the first limiting piece abuts against the connecting block, the first limiting piece pushes the connecting block to move downward, so that the filtering assembly is conveniently installed; when the second limiting piece abuts against the connecting block, the second limiting piece pushes the connecting block to move upward, so that the bottom of the filtering assembly is separated from the inner wall of the through hole, and the sundries shaken and fallen on the filtering assembly can flow away with the liquid, thereby avoiding the accumulation of the sundries on the bottom of the filtering assembly. Meanwhile, after long-time use, the filtering assembly can be taken out together with the gate plate, and manual cleaning or replacement can be performed.

[0011] Further, the elastic piece is arranged between the connecting block and the gate plate, and the elastic piece is used to make the connecting block have a tendency to move towards the second limiting piece.

[0012] Through the above structure, when the connecting block is slidingly arranged between the first limiting piece and the second limiting piece during the movement of the gate plate, the elastic piece makes the connecting block have a tendency to move towards the second limiting piece, thereby avoiding that the filtering assembly moves together with the gate plate due to friction, and ensuring that the gate plate and the filtering assembly move relatively.

[0013] Further, the first limiting piece is detachably connected to the gate plate, the second limiting piece is fixedly connected to the gate plate, a sliding rod is arranged between the first limiting piece and the second limiting piece, the first limiting piece is detachably connected to the second limiting piece through the sliding rod, the connecting block is slidingly arranged on the sliding rod, the elastic piece is sleeved on the sliding rod, and the elastic piece is located between the first limiting piece and the connecting block.

[0014] Through the above structure, the connecting block and the elastic piece are conveniently installed.

[0015] Further, a stepped hole is formed in the first limiting piece, a screw hole is formed in the second limiting piece, one end of the sliding rod is provided with a stepped fixing head, the other end of the sliding rod is provided with an external thread, the stepped fixing head is clamped in the stepped hole, and the external thread is threadedly connected in the screw hole.

[0016] Through the above structure, the first limiting piece and the second limiting piece are fixedly connected.

[0017] Further, the filtering assembly comprises two plate bodies which are identical in structure, the mounting hole is formed in the plate body, and the elastic filter screen is mounted in the mounting hole.

[0018] By setting the above structure, bidirectional filtering can be realized without adjusting the valve body direction according to the liquid flow direction.

[0019] Further, the connecting blocks are arranged in two, and each of the two connecting blocks is fixedly connected between the two plate bodies, and the two connecting blocks and the two plate bodies form sliding holes, and the gate plate is inserted into the sliding holes.

[0020] By setting the above structure, the sliding connection of the filter assembly and the gate plate is realized.

[0021] Further, the trigger piece comprises a plurality of first protrusions, and the center of the elastic filter screen is provided with a second protrusion, when the first protrusion passes through the second protrusion, the first protrusion forces the second protrusion to move away from the gate plate.

[0022] By setting the above structure, when the first protrusion passes through the second protrusion, the first protrusion forces the second protrusion to move away from the gate plate, so that the elastic filter screen vibrates and shakes off the impurities adsorbed on the elastic filter screen.

[0023] The beneficial effects of the utility model are:

[0024] 1. The utility model discloses a trigger piece and a filter assembly slidingly arranged on the gate plate, when the driving part controls the gate plate to move up and down, the gate plate drives the filter assembly to vibrate through the trigger piece, so that the impurities adsorbed on the filter assembly are separated, without dismounting the valve body, the filter assembly can be automatically cleaned by opening and closing the gate valve, and the later maintenance is simple, convenient and fast.

[0025] 2. The utility model discloses a first limiting piece, a second limiting piece and a connecting block, when the first limiting piece abuts against the connecting block, the first limiting piece pushes the connecting block to move down, and the filter assembly is convenient to install, when the second limiting piece abuts against the connecting block, the second limiting piece pushes the connecting block to move up, so that the bottom of the filter assembly is separated from the inner wall of the through hole, the impurities shaken off on the filter assembly can flow away along with the liquid, and the impurities are prevented from accumulating at the bottom of the filter assembly. Meanwhile, after long -term use, the filter assembly can be taken out together with the gate plate, and manual cleaning or replacement can be carried out.

[0026] 3. The utility model discloses an elastic piece, when the connecting block is slidingly arranged between the first limiting piece and the second limiting piece during the movement of the gate plate, the elastic piece makes the connecting block have the tendency of moving to the second limiting piece, the filter assembly is prevented from moving along with the gate plate due to friction, and the relative movement of the gate plate and the filter assembly is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a sectional structure schematic view of the gate valve of the utility model;

[0028] Figure 2is an assembly structure schematic view of the filter assembly and the gate plate in the gate valve of the utility model;

[0029] Figure 3 is Figure 2 is an enlarged structure schematic view of the A in the middle;

[0030] Figure 4 is a cross-sectional structure schematic view of the filter assembly and the gate plate in the gate valve of the utility model;

[0031] Figure 5 is Figure 4 is an enlarged structure schematic view of the B in the middle;

[0032] wherein,

[0033] 1, gate valve part;11, valve body;12, gate plate;13, through hole;14, connecting flange;

[0034] 2, drive part;

[0035] 3, filter assembly;31, plate body;32, elastic filter screen sheet;321, second protrusion;

[0036] 4, trigger;41, first protrusion;

[0037] 51, first limiting piece;52, second limiting piece;53, sliding rod;

[0038] 6, connecting block;

[0039] 7, elastic piece. DETAILED DESCRIPTION

[0040] The advantages and effects of the utility model can be understood by the content disclosed in the specification by the following specific embodiments. It should be noted that the drawings provided in the following embodiments are only used for example description, and the representation is only a schematic view, not a real object drawing, and cannot be understood as the limitation of the utility model. In order to better illustrate the embodiments of the utility model, some components in the drawing can be omitted, enlarged or reduced, and do not represent the size of the actual product. It can be understood by those skilled in the art that some known structures and their descriptions in the drawing can be omitted.

[0041] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0042] like Figures 1-5 As shown, this utility model discloses a gate valve, comprising a gate valve part 1 and a drive part 2. The gate valve part 1 includes a valve body 11 and a gate 12. The valve body 11 is provided with a through hole 13, and connecting flanges 14 are provided at both ends of the through hole 13 for connecting a liquid input pipe and a liquid output pipe. The drive part 2 is used to drive the gate 12 to move up and down to control the opening and closing of the through hole 13. A filter assembly 3 is slidably disposed on the gate 12. The filter assembly 3 is used to filter the liquid flowing to the gate 12. A trigger 4 is provided on the gate 12. When the gate 12 moves relative to the filter assembly 3, the trigger 4 drives the filter assembly 3 to vibrate. When the drive part 2 controls the gate 12 to move up and down, the gate 12 drives the filter assembly 3 to vibrate through the trigger 4, causing the impurities adsorbed on the filter assembly 3 to detach. The filter assembly 3 can be automatically cleaned by opening and closing the gate valve without removing the valve body 11, making subsequent maintenance simple, convenient, and quick.

[0043] In this embodiment, a first limiting member 51 and a second limiting member 52 are fixedly provided on the gate plate 12, and a connecting block 6 is fixedly connected to the filter assembly 3. The connecting block 6 is slidably disposed between the first limiting member 51 and the second limiting member 52. During the movement of the gate plate 12, when the connecting block 6 is located between the first limiting member 51 and the second limiting member 52, the gate plate 12 and the filter assembly 3 move relative to each other. When the first limiting member 51 abuts against the connecting block 6, the first limiting member 51 pushes the connecting block 6 to move downward. When the second limiting member 52 abuts against the connecting block 6, the second limiting member 52 pushes the connecting block 6 to move upward. When the first limiting member 51 abuts against the connecting block 6, the first limiting member 51 pushes the connecting block 6 downwards, facilitating the installation of the filter assembly 3. When the second limiting member 52 abuts against the connecting block 6, the second limiting member 52 pushes the connecting block 6 upwards, causing the bottom of the filter assembly 3 to detach from the inner wall of the through hole 13. Debris falling from the filter assembly 3 due to vibration can then be carried away with the liquid, preventing debris from accumulating at the bottom of the filter assembly 3. Furthermore, after prolonged use, the filter assembly 3 can be removed by taking out the gate 12 for manual cleaning or replacement.

[0044] In the embodiment, the elastic member 7 is arranged between the connecting block 6 and the gate plate 12, and the elastic member 7 is used to make the connecting block 6 have a tendency to move towards the second limiting member 52. The elastic member 7 is a spring, and in other embodiments, the elastic member 7 can also be arranged in a spring sheet structure. During the movement of the gate plate 12, when the connecting block 6 is slidingly arranged between the first limiting member 51 and the second limiting member 52, the elastic member 7 makes the connecting block 6 have a tendency to move towards the second limiting member 52, thereby avoiding that the filter assembly 3 follows the movement of the gate plate 12 due to friction, and ensuring that the relative movement between the gate plate 12 and the filter assembly 3 occurs.

[0045] In the embodiment, the second limiting member 52 is integrally formed with the gate plate 12, the first limiting member 51 is detachably connected with the gate plate 12, the second limiting member 52 is fixedly connected with the gate plate 12, a sliding rod 53 is arranged between the first limiting member 51 and the second limiting member 52, the first limiting member 51 is detachably connected with the second limiting member 52 through the sliding rod 53, the connecting block 6 is slidingly arranged on the sliding rod 53, the elastic member 7 is sleeved on the sliding rod 53, and the elastic member 7 is located between the first limiting member 51 and the connecting block 6. In other embodiments, the first limiting member 51 can also be integrally formed or welded with the gate plate 12, and the embodiment considers the detachable connection between the first limiting member 51 and the gate plate 12, thereby facilitating the installation of the connecting block 6 and the elastic member 7.

[0046] In the embodiment, a stepped hole is formed in the first limiting member 51, a screw hole is formed in the second limiting member 52, one end of the sliding rod 53 is provided with a stepped fixing head, and the other end of the sliding rod 53 is provided with an external thread. The stepped fixing head is clamped in the stepped hole, and the external thread is threadedly connected in the screw hole. The fixed connection between the first limiting member 51 and the second limiting member 52 is realized. In other embodiments, the fixed connection between the sliding rod 53 and the second limiting member 52 can also be realized by using a latch or the like. It should be noted that the stepped fixing head of the embodiment is provided with an internal hexagonal hole, thereby facilitating the rotation of the sliding rod 53 for disassembly and assembly.

[0047] In the embodiment, the connecting block 6 is fixedly connected to the filter assembly 3 by a fixing bolt.

[0048] In the embodiment, the filter assembly 3 includes two plate bodies 31 which are identical in structure. An installation hole is formed in each plate body 31, and an elastic filter screen 32 is installed in the installation hole. The filter assembly 3 can realize bidirectional filtration, and it is not necessary to adjust the direction of the valve body 11 according to the flow direction of the liquid.

[0049] In the embodiment, two connecting blocks 6 are arranged, and the two connecting blocks 6 are fixedly connected between the two plate bodies 31. The two connecting blocks 6 and the two plate bodies 31 form a sliding hole, and the gate plate 12 is inserted into the sliding hole, thereby realizing the sliding connection between the filter assembly 3 and the gate plate 12. In other embodiments, the sliding connection can also be realized by arranging a sliding rail and a sliding groove between the gate plate 12 and the plate body 31.

[0050] In the embodiment, the trigger 4 comprises a plurality of first protrusions 41, and the elastic filter screen 32 is provided with a second protrusion 321, when the first protrusion 41 passes through the second protrusion 321, the first protrusion 41 forces the second protrusion 321 to move away from the gate plate 12. When the first protrusion 41 passes through the second protrusion 321, the first protrusion 41 forces the second protrusion 321 to move away from the gate plate 12, so that the elastic filter screen 32 vibrates, and the impurities adsorbed on the elastic filter screen 32 are shaken off. In other embodiments, only one protrusion is provided on the gate plate 12, and the protrusion is in contact with the mesh of the elastic filter screen 32, and when the protrusion passes through the mesh, the elastic filter screen 32 is forced to vibrate.

[0051] The working principle of the gate valve of the utility model:

[0052] When the driving part 2 controls the gate plate 12 to move upwards, the first limiting part 51 and the second limiting part 52 move upwards, the elastic part 7 makes the connecting block 6 have a tendency to move towards the second limiting part 52, so that the filter assembly 3 is prevented from moving along with the gate plate 12 due to friction, and the gate plate 12 moves relative to the elastic filter screen 32.

[0053] In the process of relative movement of the gate plate 12 and the elastic filter screen 32, when the first protrusion 41 passes through the second protrusion 321, the first protrusion 41 forces the second protrusion 321 to move away from the gate plate 12, so that the elastic filter screen 32 vibrates, and the impurities adsorbed on the elastic filter screen 32 are shaken off.

[0054] When the second limiting part 52 moves upwards to abut against the connecting block 6, the second limiting part 52 pushes the connecting block 6 to move upwards, so that the bottom of the plate body 31 is separated from the inner wall of the through hole 13, the impurities shaken off from the elastic filter screen 32 can flow away with the liquid, and the impurities are prevented from accumulating at the bottom of the filter assembly 3, so that the filter assembly 3 is automatically cleaned.

[0055] The above embodiments are only used to illustrate the technical solutions of the utility model and not to limit, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model, and all should be covered in the claim range of the utility model. The technical, shape and structure parts not described in detail in the utility model are all known technologies.

Claims

1. A gate valve, comprising a gate valve portion (1) and a drive portion (2), wherein the gate valve portion (1) comprises a valve body (11) and a gate (12), the valve body (11) is provided with a through hole (13), and connecting flanges (14) are provided at both ends of the through hole (13), and the drive portion (2) is used to drive the gate (12) to move up and down to control the opening and closing of the through hole (13), characterized in that: A filter assembly (3) is slidably disposed on the gate (12). The filter assembly (3) is used to filter the liquid flowing to the gate (12). A trigger (4) is disposed on the gate (12). When the gate (12) and the filter assembly (3) move relative to each other, the trigger (4) drives the filter assembly (3) to vibrate.

2. A gate valve according to claim 1, characterized in that: The gate (12) is fixedly provided with a first limiting member (51) and a second limiting member (52). The filter assembly (3) is fixedly connected with a connecting block (6). The connecting block (6) is slidably disposed between the first limiting member (51) and the second limiting member (52). During the movement of the gate (12), when the connecting block (6) is located between the first limiting member (51) and the second limiting member (52), the gate (12) and the filter assembly (3) move relative to each other. When the first limiting member (51) abuts against the connecting block (6), the first limiting member (51) pushes the connecting block (6) to move down. When the second limiting member (52) abuts against the connecting block (6), the second limiting member (52) pushes the connecting block (6) to move up.

3. A gate valve according to claim 2, characterized in that: An elastic element (7) is provided between the connecting block (6) and the gate (12), and the elastic element (7) is used to make the connecting block (6) have a tendency to move in the direction of the second limiting element (52).

4. A gate valve according to claim 3, characterized in that: The first limiting member (51) is detachably connected to the gate (12), the second limiting member (52) is fixedly connected to the gate (12), a sliding rod (53) is provided between the first limiting member (51) and the second limiting member (52), the first limiting member (51) is detachably connected to the second limiting member (52) through the sliding rod (53), the connecting block (6) is slidably disposed on the sliding rod (53), the elastic member (7) is sleeved on the sliding rod (53), and the elastic member (7) is located between the first limiting member (51) and the connecting block (6).

5. A gate valve according to claim 4, characterized in that: The first limiting member (51) has a stepped hole, the second limiting member (52) has a screw hole, one end of the slide rod (53) is provided with a stepped fixing head, and the other end is provided with an external thread. The stepped fixing head is locked in the stepped hole, and the external thread is threaded into the screw hole.

6. A gate valve according to claim 2, characterized in that: The filter assembly (3) includes two identical plates (31), with mounting holes provided on the plates (31) and elastic filter sheets (32) installed in the mounting holes.

7. A gate valve according to claim 6, characterized in that: Two connecting blocks (6) are provided. Both connecting blocks (6) are fixedly connected between two plates (31). The two connecting blocks (6) and the two plates (31) form a sliding hole. The gate (12) is inserted into the sliding hole.

8. A gate valve according to claim 6, characterized in that: The trigger (4) includes a plurality of first protrusions (41), and the center of the elastic filter sheet (32) is provided with a second protrusion (321). When the first protrusion (41) passes the second protrusion (321), the first protrusion (41) forces the second protrusion (321) to move away from the gate (12).

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