Stop valve with filter screen
By introducing filtration, plugging, and anti-backflow devices into the gate valve, the problem of the gate valve's lack of clean filtration is solved, achieving separation of the medium and impurities and simplifying the cleaning process, thereby improving medium quality and working efficiency.
Patent Information
- Application Number
- CN202423178938.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing shut-off valves lack cleaning and filtration functions, causing impurities in the conveyed medium to flow with the medium, affecting the medium quality and prolonging subsequent cleaning time.
A gate valve with a filter screen is designed, comprising a filter device, a blocking device, an anti-backflow device, and a switching device. The filter screen filters impurities, the blocking device prevents the medium from flowing out, the anti-backflow device prevents the medium from flowing back, and the switching device controls the flow of the medium.
It achieves the separation of media and impurities, avoids the presence of a large number of impurities after the media flows out, simplifies the impurity cleaning process, and improves media quality and work efficiency.
Smart Images
Figure CN223578897U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of stop valve, concretely is a stop valve with filter screen. BACKGROUND
[0002] The stop valve is also called the stop gate, and it is the most widely used valve, and it is popular because of small friction between sealing surfaces in the opening and closing process, high durability, small opening height, easy manufacturing, convenient maintenance, application in medium and low pressure, and application in high pressure, and the closing principle of the stop valve is that the valve stem pressure makes the valve clapper sealing surface and the valve seat sealing surface tightly adhere to prevent medium circulation.
[0003] The current stop valve does not have the cleaning and filtering function, and once the medium inside is mixed with impurities, the impurities will be transported with the medium, which affects the use quality of the medium and makes the subsequent use of the staff more inconvenient, so the staff needs to remove the impurities and prolongs the subsequent operation time. UTILITY MODEL CONTENT
[0004] In view of the defects of the prior art, the utility model provides a stop valve with filter screen, which solves the problem that the current stop valve does not have the cleaning and filtering function, and once the medium inside is mixed with impurities, the impurities will be transported with the medium, which affects the use quality of the medium and makes the subsequent use of the staff more inconvenient, so the staff needs to remove the impurities and prolongs the subsequent operation time.
[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a stop valve with filter screen, comprising a valve body, a filter device is arranged on one side of the valve body, the filter device comprises: a connecting ring, which is detachably connected to the inner wall of the valve body; a filter screen, which is fixedly connected to the inner wall of the connecting ring through bolts; a supporting plate, which is fixedly connected to the outer wall of the valve body and is in close contact with the outer wall of the connecting ring; a support plate, which is installed on the outer wall of the valve body; a limiting block, which is in close contact with the outer wall of the connecting ring and is inserted with the inner wall of the support plate; a first spring, which is detachably connected to the outer wall of the limiting block and is in close contact with the outer wall of the support plate; wherein the limiting block moves along the inner wall of the support plate and compresses the first spring when it is stressed, the supporting plate can support the connecting ring, and the filter screen can filter the medium inside the valve body.
[0006] Preferably, one side of the filtering device is provided with a plugging device, the plugging device comprising: a shell mounted on the outer wall of the valve body; a stud rotatably connected to the inner wall of the shell through a sealing bearing; two first baffles, both of which are threadedly connected to the outer wall of the stud; two sliding blocks, both of which are arranged on the inner wall of the shell and fixedly connected to the outer walls of the two first baffles; wherein rotating the stud can drive the two first baffles to move along the inner wall of the shell.
[0007] Preferably, the outer walls of the two first baffles are both provided with sealing pads, and the sealing pads are all in contact with the inner wall of the valve body.
[0008] Preferably, the inside of the valve body is provided with a switching device, the switching device comprising: a plug in contact with the inner wall of the valve body; a valve stem threadedly connected to the inner wall of the valve body and detachably connected to the inner wall of the plug; a hand wheel mounted on the outer wall of the valve stem; wherein rotating the hand wheel can drive the plug to move along the inner wall of the valve body.
[0009] Preferably, the inside of the valve body is provided with an anti-backflow device, the anti-backflow device comprising: a vertical plate fixedly connected to the inner wall of the valve body; two horizontal rods both inserted into the inner wall of the vertical plate; a second baffle mounted on the outer walls of the two horizontal rods and in contact with the outer wall of the vertical plate; two second springs both detachably connected to the outer walls of the two horizontal rods and in contact with the inner wall of the vertical plate; wherein the second baffle, when subjected to force, can drive the two horizontal rods to move along the inner wall of the vertical plate and compress the two second springs.
[0010] Beneficial effects
[0011] The utility model provides a stop valve with filter screen. Have the following beneficial effects: this stop valve with filter screen passes through filtering device, when the medium flows in the valve body after the stop valve opens, passes through filtering device can filter the impurity existing in the medium, like this when the medium flows out pipe outside, the worker can clean the impurity reserved in the valve body, thereby completes the separation operation to the medium and the impurity, avoids the existence of a large number of impurities after the medium flows out pipe.
[0012] When the worker cleans the impurities in the valve body, the plugging device can block the medium, avoid the medium from being discharged together with the impurities outside the valve body when cleaning the impurities, the anti-backflow device can block the medium flowing back in the valve body, avoid the medium from being polluted after flowing back, the switching device can control the flow of the medium in the valve body, avoid the worker from being unable to control the flow of the medium. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1The utility model discloses a structure schematic drawing;
[0014] Figure 2 For Figure 1 The utility model discloses a sectional view;
[0015] Figure 3 For Figure 2 The utility model discloses a structure schematic drawing of the limiting block and the first spring in the second sealing device;
[0016] Figure 4 For Figure 2 The utility model discloses a structure schematic drawing of the vertical board, cross bar and the second baffle in the third sealing device;
[0017] Figure 5 For Figure 2 The utility model discloses a structure schematic drawing of the stud bolt, the first baffle and the sealing gasket in the fourth sealing device;
[0018] Figure 6 For Figure 2 The utility model discloses a structure schematic drawing of the clamping block, filter screen and connecting plate in the fifth sealing device.
[0019] In the drawing: 1, valve body; 2, filter device; 21, clamping block; 22, filter screen; 23, connecting plate; 24, limiting block; 25, support plate; 26, first spring; 3, plugging device; 31, shell; 32, stud bolt; 33, first baffle; 331, sealing gasket; 34, sliding block; 4, switch device; 41, plug; 42, valve rod; 43, hand wheel; 5, anti -backflow device; 51, vertical board; 52, cross bar; 53, second baffle; 54, second spring. DETAILED DESCRIPTION
[0020] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the range of protection of the utility model.
[0021] Through the personnel in the field, the parts in the case are connected in turn, and the specific connection and operation sequence should be referred to the following working principle, and the detailed connection means is the public technical knowledge in the field, and the following mainly introduces the working principle and process.
[0022] The current stop valve does not have the cleaning filter function, and once the medium inside is mixed with impurities, the impurities will be transported with the medium, which affects the use quality of the medium, and also makes the subsequent use of the staff more inconvenient, so that the staff needs to remove the impurities, and also prolongs the subsequent operation time.
[0023] In view of this, the present invention provides a shut-off valve with a filter screen. When the shut-off valve is opened and the medium flows inside the valve body, the filter screen can filter the impurities present in the medium. In this way, when the medium flows out of the pipeline, the worker can clean the impurities remaining inside the valve body, thereby completing the separation of the medium and impurities and avoiding the presence of a large amount of impurities after the medium flows out of the pipeline.
[0024] Example 1: By Figure 1 , 2 As shown in sections 3 and 6, a gate valve with a filter screen includes a valve body 1. A filter device 2 is provided on one side of the valve body 1. The filter device 2 includes: a locking block 21, detachably connected to the inner wall of the valve body 1; a filter screen 22, the mesh size of which is not limited but only needs to meet the usage requirements, and is fixedly connected to the inner wall of the locking block 21 by bolts; a connecting plate 23, fixedly connected to the outer wall of the valve body 1 and in contact with the outer wall of the locking block 21; a support plate 25, installed on the outer wall of the valve body 1; a limiting block 24, in contact with the outer wall of the locking block 21 and inserted into the inner wall of the support plate 25; and a first spring 26, detachably connected to the outer wall of the limiting block 24 and in contact with the outer wall of the support plate 25. When the limiting block 24 is subjected to force, it will move along the inner wall of the support plate 25 and compress the first spring 26. The connecting plate 23 can support the locking block 21, and the filter screen 22 can filter the medium inside the valve body 1.
[0025] In the specific implementation process, it is worth noting that a sealing gasket is installed between the card block 21 and the valve body 1. The sealing gasket can prevent the medium from flowing out from the gap between the card block 21 and the valve body 1. The connecting plate 23 plays a connecting role to the valve body 1, preventing the valve body 1 from separating without the connection of the connecting plate 23.
[0026] Specifically, when using this gate valve with a filter screen, when the medium flows into the valve body 1, the medium passes through the filter screen 22. At this time, the filter screen 22 filters the medium, and the impurities contained in the medium are blocked by the filter screen 22. The medium can then continue to flow through the filter screen 22 along the inside of the valve body 1 until it is finally discharged through the pipeline. When the worker wants to clean the impurities inside the valve body 1, the worker pushes the limiting block 24 towards the support plate 25. The limiting block 24 is subjected to force and begins to move along the inner wall of the support plate 25 and compress the first spring 26 until the limiting block 24 disengages from the outer wall of the locking block 21. At this time, the worker can remove the locking block 21 and the filter screen 22 from the inner wall of the valve body 1, and then clean the filter screen 22 and the impurities inside the valve body 1.
[0027] Example 2: From Figure 1 , 2And 5 can know that a filter screen stop valve, the filter device 2 one side is provided with the plugging device 3, the plugging device 3 includes: shell 31 is installed on the outer wall of valve body 1;Double head bolt 32 is rotatably connected to the inner wall of shell 31 by sealing bearing;First baffle 33 is provided with two, and is connected to the outer wall of double head bolt 32 by screw thread;Sliding block 34 is provided with two, and is provided on the inner wall of shell 31, and is respectively fixedly connected with the outer wall of two first baffles 33;Wherein, rotating double head bolt 32 can make two first baffles 33 drive two sliding blocks 34 along the inner wall of shell 31 movement;
[0028] In the specific implementation process, it is worth pointing out that, when two first baffles 33 are forced to move along the outer wall of double head bolt 32, two sliding blocks 34 will be driven to move along the inner wall of shell 31, because the inner wall of shell 31 is limited by the limit groove, so two sliding blocks 34 can only move up and down in the limit groove, thereby making two first baffles 33 only move up and down along the outer wall of double head bolt 32;
[0029] Further, the outer wall of two first baffles 33 is provided with sealing pad 331, and a plurality of sealing pads 331 are in close contact with the inner wall of valve body 1;
[0030] In the specific implementation process, it is worth pointing out that, when two first baffles 33 are in the initial position, the sealing pad 331 can prevent the medium from entering the inside of the shell 31, and when the first baffles 33 are in close contact with each other, the sealing pad 331 can prevent the medium from passing between the two first baffles 33;
[0031] Specifically, on the basis of the above embodiment one, before the worker prepares to disassemble the filter device 2, first rotate the double head bolt 32 clockwise, the double head bolt 32 is forced to start rotating along the inner wall of the shell 31 through the sealing bearing, at this time, two first baffles 33 are affected by the rotation of the double head bolt 32 and start to move towards each other, until two first baffles 33 are in close contact with each other, the worker stops rotating the double head bolt 32, at this time, two first baffles 33 will block the medium in the inside of the valve body 1, the worker then dismounts the filter device 2 to clean the impurities in the inside of the valve body 1.
[0032] Embodiment three: by Figure 1 And 2 It can be known that the inside of the valve body 1 is provided with a switch device 4, the switch device 4 includes: plug 41, which is in close contact with the inner wall of the valve body 1;Valve stem 42, which is threadedly connected to the inner wall of the valve body 1 and detachably connected to the inner wall of the plug 41;Hand wheel 43, which is installed on the outer wall of the valve stem 42;Wherein, rotating the hand wheel 43 can make the valve stem 42 drive the plug 41 to move along the inner wall of the valve body 1;
[0033] In the implementation process, it is worth pointing out that the bottom of the plug 41 is provided with a sealing gasket, which can prevent the medium from flowing out of the gap when the plug 41 and the inner wall of the valve body 1 are attached to each other.
[0034] Specifically, on the basis of the above embodiment one, when the worker wants to cut off the medium inside the valve body 1, the worker rotates the hand wheel 43 clockwise, which drives the valve stem 42 to rotate along the inner wall of the valve body 1, and at the same time, the valve stem 42 drives the plug 41 to move downward along the inner wall of the valve body 1 until the bottom of the plug 41 is attached to the inner wall of the valve body 1, at which time the medium inside the valve body 1 is blocked by the plug 41, when the worker wants to restore the medium flow, the worker rotates the hand wheel 43 counterclockwise, which drives the plug 41 to move upward through the valve stem 42 until the plug 41 and the inner wall of the valve body 1 are separated from each other, at which time the medium inside the valve body 1 can flow out from the gap between the plug 41 and the valve body 1.
[0035] Embodiment four: from Figure 1 、 2 and 4, the inside of the valve body 1 is provided with an anti-backflow device 5, the anti-backflow device 5 comprises: a vertical plate 51 fixedly connected to the inner wall of the valve body 1; a crossbar 52 provided with two and inserted into the inner wall of the vertical plate 51; a second baffle 53 installed on the outer wall of the two crossbars 52 and attached to the outer wall of the vertical plate 51; two second springs 54 respectively detachably connected to the outer wall of the two crossbars 52 and attached to the inner wall of the vertical plate 51; wherein the second baffle 53 will drive the two crossbars 52 to move along the inner wall of the vertical plate 51 and compress the two second springs 54 when it is stressed;
[0036] In the implementation process, it is worth pointing out that the outer wall of the second baffle 53 is provided with a sealing gasket, which can prevent the medium from passing through the gap between the second baffle 53 and the vertical plate 51 when the medium inside the valve body 1 backflows, and the second spring 54 can be replaced by the worker, thereby ensuring the sealing effect of the second baffle 53 and the vertical plate 51;
[0037] Specifically, on the basis of the above embodiment one, when the medium inside the valve body 1 flows normally, the medium will push the second baffle 53 to move away from the vertical plate 51, when the second baffle 53 moves, it will drive the two crossbars 52 to move along the inner wall of the vertical plate 51, and at the same time, the two second springs 54 will be compressed by the movement of the two crossbars 52, at which time the medium can pass through the gap between the second baffle 53 and the vertical plate 51, when the medium inside the valve body 1 backflows, the medium will push the second baffle 53 to move towards the vertical plate 51, when the second baffle 53 and the vertical plate 51 are attached to each other, the medium will be blocked by the second baffle 53 and the vertical plate 51, which can prevent the medium inside the valve body 1 from backflowing.
[0038] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0039] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connecting" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.
[0040] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A strainer-equipped stop valve comprising a valve body (1), characterized by: One side of the valve body (1) is provided with a filter device (2), the filter device (2) comprises: Clamping block (21), detachable connection is set up in the wall of the valve body (1); Filter screen (22), fixedly connected by bolt in the inner wall of the clamping block (21); Connecting plate (23), fixedly connected to the outer wall of the valve body (1), and with the outer wall of the clamping block (21) is attached; Support plate (25), installed on the outer wall of the valve body (1); Limiting block (24), attached to the outer wall of the clamping block (21), and with the inner wall of the support plate (25) is inserted; First spring (26), detachable connection is set up in the outer wall of the limiting block (24), and with the outer wall of the support plate (25) is attached; Wherein, the limiting block (24) will move along the inner wall of the support plate (25) and compress the first spring (26) when stressed, the connecting plate (23) can support the clamping block (21), the filter screen (22) can filter the medium in the valve body (1).
2. A strainer-equipped stop valve according to claim 1, characterized in that: One side of the filter device (2) is provided with a plugging device (3), the plugging device (3) comprises: Housing (31), installed on the outer wall of the valve body (1); Double head bolt (32), rotatably connected to the inner wall of the housing (31) through the sealing bearing; First baffle (33), two are set, and are connected by thread in the outer wall of the double head bolt (32); Sliding block (34), two are set, are set in the inner wall of the housing (31), and are respectively connected with the outer wall of two first baffles (33); Wherein, rotating the double head bolt (32) can make two first baffles (33) drive two sliding blocks (34) move along the inner wall of the housing (31).
3. A strainer-equipped stop valve according to claim 2, characterized in that: The outer wall of two first baffles (33) is installed with sealing pad (331), and a plurality of sealing pads (331) are attached to the inner wall of the valve body (1).
4. A strainer-equipped stop valve according to claim 1, characterized in that: The inside of the valve body (1) is provided with a switching device (4), and the switching device (4) comprises: Plug (41), attached to the inner wall of the valve body (1); Valve stem (42), threadedly connected to the inner wall of the valve body (1), and detachably connected with the inner wall of the plug (41); Hand wheel (43), installed on the outer wall of the valve stem (42); Wherein, rotating the hand wheel (43) can make the valve stem (42) drive the plug (41) move along the inner wall of the valve body (1).
5. A strainer-equipped stop valve according to claim 1, characterized in that: The inside of the valve body (1) is provided with an anti backflow device (5), and the anti backflow device (5) comprises: Vertical plate (51), fixedly connected to the inner wall of the valve body (1); Cross bar (52), two are set, and are inserted into the inner wall of the vertical plate (51); Second baffle (53), installed on the outer wall of two cross bars (52), and attached to the outer wall of the vertical plate (51); Second spring (54), two are set, are detachably connected to the outer wall of two cross bars (52), and are attached to the inner wall of the vertical plate (51); Wherein, the second baffle (53) will drive two cross bars (52) to move along the inner wall of the vertical plate (51) and compress two second springs (54) when stressed.