Valve anti-blocking device for water conservancy project

Abstract

The utility model provides a valve anti-blocking device for hydraulic engineering, which relates to the field of hydraulic engineering and comprises an accommodating cavity connected with a water inlet end of a valve, two ends of the accommodating cavity are connected and communicated with variable-diameter flange joints, end covers capable of being opened are arranged on the upper portion and the lower portion of the accommodating cavity, and three groups of mutually contacted filter units are inserted into the accommodating cavity. According to the valve anti-blocking device for the water conservancy project, impurities blocking the valve are filtered out of the valve through the arranged filter screen so that the valve can be prevented from being blocked, the filter screen is cleaned at regular time, the end cover is opened, and therefore the valve can be prevented from being blocked. When the filter unit is replaced, the new filter unit is clamped with the old filter unit from the upper part of the accommodating cavity and is pushed downwards, the filter unit wrapped with the filter material is withdrawn from the accommodating cavity, and the filter unit wrapped with the filter material can be taken down from the device to be washed, so that the production cost is reduced, and meanwhile, the filter effect can be always kept in the process of replacing the filter unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to water conservancy engineering technical field, concretely is a valve anti -blocking device for water conservancy engineering. BACKGROUND

[0002] Valve is the control part in fluid conveying system, has the functions such as cut-off, regulation, flow guide, prevent backflow, pressure stabilization, shunt or overflow pressure relief. Valve relies on drive or automatic mechanism to make the on-off member to make lifting, sliding, swing or rotary motion, to change the size of its flow passage area to realize its control function.

[0003] The prior art patent CN211273835U is a valve anti-blocking device, which comprises a shell, a mounting frame, a sleeve, a filter screen and a collection box. The shell is provided with connecting flanges at both ends, and mounting seats are arranged at both ends of the shell. The mounting frame is mounted in the mounting groove of the mounting seat. The sleeve is fixedly connected to the bottom edge of the mounting frame. The sleeve is provided with filter holes. The filter screen is arranged at the bottom of the sleeve. The filter screen is inclined. A high-pressure nozzle is arranged at the top of the shell. The high-pressure nozzle is connected to the external pipeline through a loose joint. The high-pressure nozzle is close to the top of the filter screen. A stirring blade is arranged in the sleeve. The stirring blade is connected to the top end of a rotating rod. The bottom end of the rotating rod is provided with a fixing seat.

[0004] The technical scheme is provided with mounting seats, mounting frames, sleeves, filter holes, stirring blades, rotating rods and fixing seats, which can conveniently collect impurities in the shell. The structure of the stirring blade can better crush the impurities, and the crushing efficiency is high, which can effectively prevent the valve from being blocked. However, the high-pressure nozzle is integrated in the device when cleaning the impurities in the collection shell, which increases the production cost. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a valve anti-blocking device for water conservancy engineering, which solves the problem of inconvenient cleaning of the anti-blocking device in the background art.

[0006] TECHNICAL SCHEME

[0007] To achieve the above object, the utility model is realized by the following technical scheme: a valve anti-blocking device for water conservancy engineering, comprising a containing cavity connected with the water inlet end of the valve, two ends of the containing cavity are connected and penetrated by a variable-diameter flange joint, upper and lower ends of the containing cavity are provided with openable end covers, three groups of filter units in contact with each other are inserted into the inside of the containing cavity, the filter unit comprises two symmetrical fixed plates, a filter screen is fixedly installed between the two fixed plates, an insertion slot is formed in the upper fixed plate, and an insertion block protrudes from the bottom end of the lower fixed plate and is inserted into the adjacent insertion slot.

[0008] Further, the four corners of the fixed plate are rounded, the inner ring of the accommodating cavity is attached to the outer ring of the fixed plate, and a sealing groove is formed in the middle of the fixed plate.

[0009] Further, a support beam is fixedly installed in the middle of the filter screen, and the upper and lower ends of the support beam are fixedly connected with the fixed plate.

[0010] Further, the filter screen is bent into a "concave" shape, and the opening direction of the filter screen is away from the valve.

[0011] Further, the end cover comprises a sliding cover which is slidingly connected with the accommodating cavity, a baffle which is inserted into the accommodating cavity is fixedly installed at the tail end of the sliding cover, a boss is arranged on the side of the accommodating cavity which is away from the baffle, a groove is formed in the side of the boss which is away from each other, a sealing plate is inserted into the baffle which is away from the baffle, the sealing plate is clamped in the groove, and the sealing plate and the sliding cover are fixed by bolts.

[0012] Further, the cross section of the sealing plate is in the shape of "T", the horizontal end of the sealing plate is above the sliding cover, and the bolts are threadedly connected with the horizontal end of the sealing plate.

[0013] Further, the distance between the two end covers is equal to the length of the three filter units which are clamped with each other, the length of the water passing part in the middle of the accommodating cavity is greater than that of the two extending parts, and the uppermost insertion groove and the lowermost insertion block are located on the outside of the accommodating cavity.

[0014] The beneficial effects of the utility model lie in:

[0015] 1. The valve anti-blocking device for water conservancy projects, the impurities which block the valve are filtered outside the valve by the filter screen, the valve is prevented from being blocked, the filter screen is cleaned regularly, the end cover is opened, the new filter unit is clamped with the old filter unit from the upper side of the accommodating cavity and is pushed downward, the lowermost filter unit which plays a supporting role is pushed out of the accommodating cavity and is inserted with the new filter unit and is pushed downward, at this time, the filter unit which wraps the filter material is taken out of the accommodating cavity, the filter unit which wraps the filter material can be taken out of the device for washing, the production cost is reduced, and the filtering effect can be maintained during the replacement of the filter unit.

[0016] 2. The valve anti-blocking device for water conservancy projects, the filter screen is bent into a "concave" shape, and the opening direction of the filter screen is away from the valve, so that the filter material can be temporarily accommodated in the cavity formed by the filter screen, and more collected materials can be collected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model structural schematic view is shown in the figure;

[0018] Figure 2 is a half-section schematic view of the accommodating cavity of the utility model;

[0019] Figure 3 is a schematic view of the filter unit of the utility model;

[0020] Figure 4 is a schematic view of the end cover of the utility model.

[0021] Wherein, 1, valve; 2, accommodating cavity; 3, reducing flange joint; 4, end cover; 5, filter unit; 501, fixed plate; 502, filter screen; 503, plug-in slot; 504, plug-in block; 505, sealing groove; 506, sealing ring; 507, support beam; 401, sliding cover; 402, baffle; 403, boss; 404, groove; 405, sealing plate; 406, bolt. DETAILED DESCRIPTION

[0022] 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 scope of protection of the utility model.

[0023] Referring to Figures 1-4 A valve anti-blocking device for water conservancy projects, comprising an accommodating cavity 2 connected with the water inlet end of the valve 1, two ends of the accommodating cavity 2 are connected and penetrated by a reducing flange joint 3, upper and lower ends of the accommodating cavity 2 are provided with openable end covers 4, three groups of filter units 5 in contact with each other are inserted into the inside of the accommodating cavity 2, the filter unit 5 comprises symmetrically arranged fixed plates 501, a filter screen 502 is fixedly installed between the two fixed plates 501, a plug-in slot 503 is formed in the upper fixed plate 501, a plug-in block 504 protrudes from the bottom end of the lower fixed plate 501, the plug-in block 504 is inserted into the adjacent plug-in slot 503, impurities blocking the valve 1 are filtered outside the valve 1 by the filter screen 502, the valve 1 can be prevented from being blocked, the filter screen 502 is cleaned regularly, the end cover 4 is opened, a new filter unit 5 is clamped with an old filter unit 5 from the upper end of the accommodating cavity 2 and is pushed downward, the lowermost filter unit 5 plays a supporting role and is pushed out of the accommodating cavity 2, the filter unit 5 is inserted with the new filter unit 5 and is pushed downward, at this time, the filter unit 5 wrapped with filter material is taken out of the device for flushing, the production cost is reduced, and the filtering effect can be maintained during the replacement of the filter unit 5.

[0024] The four corners of the fixed plate 501 are chamfered, the inner circle of the accommodating cavity 2 is attached to the outer circle of the fixed plate 501, the middle part of the fixed plate 501 is provided with a sealing groove 505, and the sealing groove 505 is provided with a sealing ring 506. The chamfering treatment can facilitate the installation of the sealing ring 506, and the installation of the sealing ring 506 can avoid water leakage from the gap between the fixed plate 501 and the accommodating cavity 2.

[0025] The middle part of the filter screen 502 is fixedly provided with a supporting beam 507, and the upper and lower ends of the supporting beam 507 are fixedly connected with the fixed plate 501. The supporting beam 507 can increase the strength of the filter screen 502 and limit the distance between the two fixed plates 501.

[0026] The filter screen 502 is bent into a "concave" shape, and the opening direction of the filter screen 502 is away from the valve 1. In this way, the filter can be temporarily accommodated in the cavity formed by the filter screen 502, so that more collection objects can be collected.

[0027] The end cover 4 comprises a sliding cover 401 slidably connected with the accommodating cavity 2, and a baffle 402 inserted with the accommodating cavity 2 is fixedly installed at the tail end of the sliding cover 401. The side of the accommodating cavity 2 away from the baffle 402 is provided with a boss 403, the side of the boss 403 away from each other is provided with a groove 404, the sealing plate 405 is inserted with the baffle 402 away from the sliding cover 401, the sealing plate 405 is clamped in the groove 404, and the sealing plate 405 and the sliding cover 401 are fixed by the bolt 406. In this way, the accommodating cavity 2 can be sealed.

[0028] The cross section of the sealing plate 405 is "T" shape, the horizontal end of the sealing plate 405 is above the sliding cover 401, and the bolt 406 is threadedly connected with the horizontal end of the sealing plate 405. In this way, water leakage can be avoided from the connection between the end cover 4 and the accommodating cavity 2.

[0029] The distance between the two end covers 4 is equal to the length of the three filter units 5 clamped with each other, the length of the middle water passing part of the accommodating cavity 2 is greater than that of the two side extending parts, the uppermost insertion slot 503 and the lowermost insertion block 504 are located on the outside of the accommodating cavity 2. In this way, when the filter unit 5 is replaced, the lower outlet of the accommodating cavity 2 can be blocked to avoid water leakage.

[0030] When in use, the filter screen 502 can filter the impurities clogging the valve 1 outside the valve 1, so as to avoid the clogging of the valve 1; the filter screen 502 is cleaned at a fixed time; the end cover 4 is opened; a new filter unit 5 is clamped with an old filter unit 5 from above the containing cavity 2 and is pushed downward; the filter unit 5 at the bottom which plays a supporting role is pushed out of the containing cavity 2 and is inserted with the new filter unit 5 and is pushed downward; at this time, the filter unit 5 wrapped with the filter material exits the containing cavity 2; the filter unit 5 wrapped with the filter material can be taken out from the device for washing, so as to reduce the production cost; meanwhile, the filtering effect can be maintained during the replacement of the filter unit 5.

[0031] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying such actual relationship or order between such entities or actions.

[0032] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A valve anti-blocking device for hydraulic engineering, comprising a containing cavity (2) connected to the water inlet end of a valve (1), characterized in that: Both ends of the accommodating cavity (2) are connected and through variable flange joints (3), upper and lower of the accommodating cavity (2) are provided with openable end covers (4), the inside of the accommodating cavity (2) is inserted with three groups of mutually contacting filter units (5); The filter unit (5) includes symmetrically arranged fixed plates (501), the filter screen (502) is fixedly installed between the two fixed plates (501), the upper fixed plate (501) is provided with an insertion slot (503) above, and the lower fixed plate (501) is provided with an insertion block (504) at the bottom end, and the insertion block (504) is inserted into the adjacent insertion slot (503).

2. The anti-blocking device for valves in hydraulic engineering according to claim 1, characterized in that: The four corners of the fixed plate (501) are rounded, the inner ring of the accommodating cavity (2) is attached to the outer ring of the fixed plate (501), the middle part of the fixed plate (501) is provided with a sealing groove (505), and the inside of the sealing groove (505) is provided with a sealing ring (506).

3. The anti-blocking device for valves in hydraulic engineering according to claim 2, characterized in that: The middle part of the filter screen (502) is fixedly installed with a support beam (507), and the upper and lower ends of the support beam (507) are fixedly connected with the fixed plate (501).

4. The anti-blocking device for valves in hydraulic engineering according to claim 3, characterized in that: The filter screen (502) is bent into a "concave" shape, and the opening direction of the filter screen (502) is away from the valve (1).

5. The anti-blocking device for valves in hydraulic engineering according to any one of claims 1 to 4, characterized in that: The end cover (4) includes a sliding cover (401) slidably connected with the accommodating cavity (2), a baffle (402) fixedly installed at the tail end of the sliding cover (401) and inserted with the accommodating cavity (2), a boss (403) provided on the side of the accommodating cavity (2) away from the baffle (402), a groove (404) provided on the side of the boss (403) away from each other, a sealing plate (405) inserted with the sliding cover (401) away from the baffle (402), the sealing plate (405) is clamped in the groove (404), and the sealing plate (405) and the sliding cover (401) are fixed by bolts (406).

6. The anti-clogging device for valves in hydraulic engineering according to claim 5, characterized in that: The cross section of the sealing plate (405) is "T" shape, the horizontal end of the sealing plate (405) is above the sliding cover (401), and the bolt (406) is threadedly connected with the horizontal end of the sealing plate (405).

7. The anti-clogging device for valves in hydraulic engineering according to claim 6, characterized in that: The distance between the two end covers (4) is equal to the length of the three mutually clamped filter units (5), the length of the middle water passing part of the accommodating cavity (2) is greater than that of the two side extending parts, and the uppermost insertion slot (503) and the lowermost insertion block (504) are located on the outside of the accommodating cavity (2).

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