Gate valve with filtering function

Abstract

The utility model provides a gate valve with a filtering function, which comprises a valve body, an inlet end and an outlet end, wherein the inlet end and the outlet end are respectively arranged at the left end and the right end of the valve body; the mounting ring plate is arranged on the valve body in a sliding mode and located in the inlet end, and the limiting plate blocks are annularly arranged on the valve body at equal intervals, located in the inlet end and used for limiting the mounting ring plate to move rightwards. The limiting check blocks are annularly arranged on the valve body at equal intervals, located in the inlet end and used for limiting the mounting ring plate to move leftwards, and the auxiliary penetrating openings are formed in the mounting ring plate and used for allowing the mounting ring plate to penetrate through the limiting check blocks when the mounting ring rotates to the preset position. The number of the auxiliary penetrating openings corresponds to the number of the limiting check blocks, the limiting plate blocks are arranged on the right side of the mounting ring plate, and the limiting check blocks are arranged on the left side of the mounting ring plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a gate valve with filtering function. BACKGROUND

[0002] The gate valve is a gate board, and the movement direction of the gate board is perpendicular to the fluid direction, and the gate valve can only be fully opened and closed, and cannot be adjusted and throttled. The gate valve is sealed by the contact between the valve seat and the gate board, and the sealing surface is usually built up with a metal material to increase the wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate board has a rigid gate board and an elastic gate board, and according to the different gate boards, the gate valve is divided into a rigid gate valve and an elastic gate valve.

[0003] When the gate valve is used for conveying sewage, since the sewage contains particulate impurities such as sand or stone, when the impurities enter the gate valve along with the sewage, the gate valve cannot filter the impurities in the sewage, and when the sewage stops flowing, the impurities are easy to deposit and accumulate in the gate valve, and the accumulated impurities are easy to block the gate valve, thereby affecting the normal use of the gate valve. CONTENT

[0004] The utility model discloses a gate valve with filtering function.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gate valve with filtering function, which comprises a valve body, an inlet end and an outlet end arranged at the left end and the right end of the valve body respectively, an installation ring plate slidably arranged in the inlet end on the valve body, at least three limiting plate blocks annularly and equidistantly arranged in the inlet end on the valve body for limiting the right movement of the installation ring plate, at least two limiting blocks annularly and equidistantly arranged in the inlet end on the valve body for limiting the left movement of the installation ring plate, at least two auxiliary through holes opened on the installation ring plate for the installation ring plate to pass through the limiting blocks when the installation ring is rotated to a predetermined position, and a filter screen arranged on the installation ring plate, the number of the auxiliary through holes corresponds to the number of the limiting blocks, the limiting plate blocks are arranged on the right side of the installation ring plate, and the limiting blocks are arranged on the left side of the installation ring plate.

[0006] Further improvement is that a fixed circular plate is arranged in the inlet end on the valve body, a connecting column is arranged between the fixed circular plate and each limiting plate block, a connecting shaft is arranged on the left end face of the fixed circular plate, a connecting ring plate is arranged on the filter screen and gap-fitted with the connecting shaft, the central axis of the connecting ring plate corresponds to the central axis of the installation ring plate, and the central axis of the fixed circular plate corresponds to the central axis of the connecting ring plate.

[0007] Further improvement is that the left end face of the connecting ring plate is provided with a driving sleeve convenient for hand control, and the diameter of the driving sleeve is larger than that of the connecting shaft.

[0008] Further improvement is that the right end face of the mounting ring plate is provided with a flexible extrusion layer.

[0009] Further improvement is that the flexible extrusion layer is two, and the two flexible extrusion layers are respectively located on the two sides of the auxiliary through hole.

[0010] Further improvement is that the flexible extrusion layer is a rubber layer.

[0011] After the above technical scheme is adopted, the beneficial effects of the utility model are that when the gate valve is conveying sewage, since the sewage contains particulate impurities such as sand or stone, when the impurities enter the gate valve along with the sewage, the filter screen filters the particulate impurities such as sand or stone contained in the sewage, thereby preventing the particulate impurities from entering the valve body and causing sedimentation and accumulation, and the impurities are not easy to block the gate valve, thereby not easily affecting the normal use of the gate valve; when the filter screen needs to be cleaned, the valve body is first taken out from the preset pipeline, then the mounting ring plate is rotated in the circumferential direction by hand, until the auxiliary through hole corresponds to the position of the limiting block, then the filter screen or the mounting ring plate is pulled outwards until the mounting ring plate is taken out from between the limiting plate and the limiting block, the impurities on the filter screen can be conveniently cleaned, and the filtering effect of the filter screen is improved.

[0012] Further effects are that when installing, the connecting ring plate is aligned with the connecting shaft for installation, so that the mounting ring plate slides in the horizontal direction of the central axis of the inlet end, and when the mounting ring plate is located between the limiting plate and the limiting block, the mounting ring plate is kept on the central axis of the inlet end, thereby improving the contact area between the filter screen and the impurities.

[0013] Further effects are that when the mounting ring plate is installed between the limiting plate and the limiting block, the flexible extrusion layer is extruded with the left end face of the limiting plate, so that the flexible extrusion layer is deformed, and after the mounting ring plate is installed between the limiting plate and the limiting block, the gap between the mounting ring plate and the limiting plate and the limiting block is filled by the flexible extrusion layer, so that the mounting ring plate does not slide left and right when located between the limiting plate and the limiting block, thereby improving the stability of the mounting ring plate between the limiting plate and the limiting block. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0015] Figure 1 is a structural schematic diagram of the present application;

[0016] Figure 2 is an enlarged view of A part corresponding to Figure 1

[0017] Figure 3 is a left view cutaway view of the valve body and the inlet end in the present application;

[0018] Figure 4 is a left view cutaway view of the valve body and the connecting shaft in the present application;

[0019] Figure 5 is a left view cutaway view of the valve body and the mounting ring plate in the present application;

[0020] Figure 6 is a left view cutaway view of the valve body and the limiting stopper in the present application;

[0021] Figure 7 is a right view of the mounting ring plate and the flexible extrusion layer in the present application;

[0022] Figure 8 is a top cutaway view of the mounting ring plate, the driving sleeve and the flexible extrusion layer in the present application.

[0023] Mark explanation: valve body 1, inlet end 2, outlet end 3, mounting ring plate 4, limiting plate 5, limiting stopper 6, auxiliary through hole 7, filter screen 8, fixed circular plate 9, connecting column 10, connecting shaft 11, connecting ring plate 12, driving sleeve 13, flexible extrusion layer 14. DETAILED DESCRIPTION

[0024] The present application will be further described in combination with the drawings and specific embodiments.

[0025] Referring to Figures 1 to 8 ​As shown in the specific embodiment, the technical scheme adopted by the present embodiment is: a gate valve with filtering function, comprising a valve body 1, an inlet end 2 and an outlet end 3 respectively arranged at the left end and the right end of the valve body 1, and further comprising a mounting ring plate 4 slidably arranged on the valve body 1 in the inlet end 2, at least three limiting plate blocks 5 arranged in a ring shape and equidistantly on the valve body 1 in the inlet end 2 for limiting the rightward movement of the mounting ring plate 4, at least two limiting blocks 6 arranged in a ring shape and equidistantly on the valve body 1 in the inlet end 2 for limiting the leftward movement of the mounting ring plate 4, at least two auxiliary through holes 7 opened on the mounting ring plate 4 for allowing the mounting ring plate 4 to pass through the limiting blocks 6 when the mounting ring is rotated to a predetermined position, and a filter screen 8 arranged on the mounting ring plate 4. The number of the auxiliary through holes 7 corresponds to the number of the limiting blocks 6. The limiting plate blocks 5 are arranged on the right side of the mounting ring plate 4, and the limiting blocks 6 are arranged on the left side of the mounting ring plate 4. When the mounting ring plate 4 is located between the limiting plate blocks 5 and the limiting blocks 6, the inner diameter of the valve body 1 formed by the plurality of limiting plate blocks 5 is greater than the inner diameter of the mounting ring plate 4, and the inner diameter of the valve body 1 formed by the limiting blocks 6 is smaller than the inner diameter of the mounting ring plate 4, so that the limiting plate blocks 5 are blocked on the right end surface of the mounting ring plate 4, and the limiting blocks 6 are blocked on the left end surface of the mounting ring plate 4. The number of the limiting plate blocks 5 is four, and the four limiting plate blocks 5 are arranged in a ring shape and equidistantly on the valve body 1. The number of the limiting blocks 6 is three, and the three limiting blocks 6 are arranged in a ring shape and equidistantly on the valve body 1. The inlet end 2 and the outlet end 3 are both circular ends. The mounting ring plate 4 can slide horizontally and rotate circumferentially in the inlet end 2. The gap between the mounting ring plate 4 and the inner wall of the valve body 1 is 2mm-9mm. The smaller the gap, the easier it is for the central axis of the mounting ring plate 4 to correspond to the central axis of the inlet end 2. The plurality of limiting plate blocks 5 are arranged on the inner wall of the valve body 1, the plurality of limiting plate blocks 5 abut against the right end surface of the mounting ring plate 4, the medium passes through the middle part of the mounting ring plate 4, and the filter screen 8 filters the medium; and the plurality of limiting blocks 6 are also arranged on the inner wall of the valve body 1, and the plurality of limiting blocks 6 abut against the left end surface of the mounting ring plate 4.

[0026] As shown in the specific embodiment, Figure 4 The valve body 1 is provided with a fixed circular plate 9 in the inlet end 2, a connecting column 10 arranged between the fixed circular plate 9 and each limiting plate block 5, a connecting shaft 11 arranged on the left end surface of the fixed circular plate 9, and a connecting ring plate 12 arranged on the filter screen 8 and in clearance fit with the connecting shaft 11. The central axis of the connecting ring plate 12 corresponds to the central axis of the mounting ring plate 4, and the central axis of the fixed circular plate 9 corresponds to the central axis of the connecting ring plate 12. The filter screen 8 is fixedly arranged between the connecting ring plate 12 and the mounting ring plate 4 by welding or bonding.

[0027] As shown in the specific embodiment, Figure 7 , Figure 8As shown, the left end surface of the connecting ring plate 12 is provided with a drive sleeve 13 for hand control, and the diameter of the drive sleeve 13 is larger than that of the connecting shaft 11.

[0028] The right end surface of the mounting ring plate 4 is provided with a flexible extrusion layer 14.

[0029] The flexible extrusion layer 14 is shared by two, and the two flexible extrusion layers 14 are located on both sides of the auxiliary through hole 7.

[0030] The flexible extrusion layer 14 is a rubber layer.

[0031] The working principle of the utility model is: when the gate valve is conveying sewage, because the sewage contains sand or stone and other particulate impurities, when the impurities enter the gate valve with the sewage, the filter screen 8 filters the sand or stone and other particulate impurities contained in the sewage, thereby preventing the particulate impurities from entering the valve body 1 and causing sedimentation and accumulation, and the impurities are not easy to block the gate valve, thereby not easily affecting the normal use of the gate valve; when it is necessary to clean the filter screen 8, first, the valve body 1 is taken out from the preset pipeline, then the drive sleeve 13 is held by hand and rotated, the filter screen 8 and the mounting ring plate 4 are driven to rotate circumferentially by the drive sleeve 13, until the auxiliary through hole 7 corresponds to the position of the limiting block 6, then the drive sleeve 13 is pulled outwards to drive the mounting ring plate 4 to move outward, until the mounting ring plate 4 is taken out from between the limiting plate block 5 and the limiting block 6, the impurities on the filter screen 8 can be conveniently cleaned, and the filtering effect of the filter screen 8 is improved; when it is necessary to install the mounting ring plate 4, the mounting ring plate 4 is driven into the inlet end 2 by holding the drive sleeve 13 by hand, and the position of the auxiliary through hole 7 corresponds to the position of the limiting block 6, then the mounting ring plate 4 is pushed to the end of the limiting plate block 5 until it enters between the limiting plate block 5 and the limiting block 6, and the mounting ring plate 4 is driven to rotate circumferentially by rotating the drive sleeve 13, so that the position of the auxiliary through hole 7 is offset from the position of the limiting block 6, and the mounting ring plate 4 can be limited to move horizontally by the limiting plate block 5 and the limiting block 6, that is, the installation of the filter screen 8 is completed.

[0032] When installing, the connecting ring plate 12 is aligned with the connecting shaft 11 for installation, so that the mounting ring plate 4 slides in the horizontal direction, and when the mounting ring plate 4 is located between the limiting plate block 5 and the limiting block 6, the mounting ring plate 4 is kept on the central axis of the inlet end 2, thereby improving the contact area between the filter screen 8 and the impurities.

[0033] When the mounting ring plate 4 is mounted between the limiting plate 5 and the limiting block 6, the flexible extrusion layer 14 is extruded with the left end face of the limiting plate 5, so that the flexible extrusion layer 14 is deformed flexibly, and after the mounting ring plate 4 is mounted between the limiting plate 5 and the limiting block 6, the gap between the mounting ring plate 4, the limiting plate 5 and the limiting block 6 is filled by the flexible extrusion layer 14, so that the mounting ring plate 4 does not slide left and right when being located between the limiting plate 5 and the limiting block 6, and the stability of the mounting ring plate 4 between the limiting plate 5 and the limiting block 6 is improved.

[0034] The utility model discloses a structure of product, the model of each element is not the content of the utility model protection, also be the public known technology, as long as the element of realizing the function of the utility model on the market can be as a kind of filter function's gate valve selection application.Therefore the model of element and so on parameters are not detailed in the utility model.It is contributed in the utility model to combine each element scientifically together.

[0035] The basic principle and main features of the utility model and its advantages are shown and described above, and those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.The utility model is not detailed, and all are the public known technology of those skilled in the art.

Claims

1. A gate valve with filtering function, comprising a valve body, an inlet end and an outlet end respectively arranged at left end and right end of the valve body, characterized in that: The valve body is provided with a fixed circular plate, a connecting column arranged between the fixed circular plate and each of the limiting plate blocks, a connecting shaft arranged on the left end surface of the fixed circular plate, and a connecting ring plate arranged on the filter screen and in clearance fit with the connecting shaft, the central axis of the connecting ring plate corresponding to the central axis of the mounting ring plate, and the central axis of the fixed circular plate corresponding to the central axis of the connecting ring plate.

2. The gate valve with filtering function according to claim 1, characterized in that: The left end surface of the connecting ring plate is provided with a driving sleeve convenient for hand control, the diameter of the driving sleeve being greater than the diameter of the connecting shaft.

3. The gate valve with filtering function according to claim 2, characterized in that: The right end surface of the mounting ring plate is provided with a flexible extrusion layer.

4. The gate valve with filtering function according to claim 1, characterized in that: There are two flexible extrusion layers, and the two flexible extrusion layers are respectively arranged on the two sides of the auxiliary through hole.

5. The gate valve with filtering function according to claim 4, characterized in that: The flexible extrusion layer is a rubber layer.

6. A gate valve with filtering function according to claim 4 or 5, characterized in that: ​

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