Anti-blocking stop valve convenient to clean

Abstract

The utility model discloses an anti-blocking stop valve convenient to clean, which belongs to the technical field of stop valves and comprises a valve casing, a mounting port communicated with the inside is arranged at the bottom end of the valve casing, and a water inlet channel and a water outlet channel are arranged in the valve casing. The first-stage filtering assembly is installed in the filtering pipe to filter large sundries, the second-stage filtering assembly is installed in the valve shell to filter small dirt, double filtering can be formed through cooperation of the second-stage filtering assembly and the first-stage filtering assembly, and therefore the valve element and the valve seat of the stop valve are prevented from being blocked. Meanwhile, the secondary filter assembly can quickly remove dirt communicated with a filter screen through threaded connection of a mounting ring and a mounting opening, and the filter cartridge can be taken out by taking down a rotating plate, so that through a detachable structure of the primary filter assembly and the secondary filter assembly, quick cleaning and operation recovery can be realized without disassembly by professionals; the overall reliability of the system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, and more specifically to an anti-clogging stop valve which is easy to clean. Background Art

[0002] A stop valve is a valve used to control the flow of fluid. It opens or closes the flow channel by raising or lowering the valve core, thereby achieving fluid on / off or regulation. Turning the handwheel drives the valve stem and valve core up and down, changes the flow channel area, and controls the flow. It has excellent sealing performance when closed and is suitable for cutting off fluids. It is widely used in pipelines of media such as water, steam, and oil, and is suitable for occasions that require frequent opening and closing or flow regulation.

[0003] Chinese Patent Authorization Announcement No.: CN213332389U provides an anti-blocking stop valve. When the inlet and outlet are connected, the liquid in the valve body flows into the outlet, and the No. 1 spring pushes the slider to misalign the side outlet hole with the No. 2 outlet hole. The liquid enters the inlet and pushes the valve ball and the No. 2 spring to move, so that the liquid flows out of the outlet from the No. 1 outlet. When the outlet is blocked, more and more liquid accumulates inside the valve body, and the pressure becomes greater and greater, thereby pushing the slider to move until the stepped slider fits with the stepped hole, so that the No. 1 outlet is blocked by the small-diameter hole section, and the No. 2 outlet is connected with the side outlet hole, so that the liquid is discharged from the No. 2 outlet and the side outlet hole. The liquid discharged from the side outlet hole can be collected, so that when the outlet of the valve is blocked, the liquid can still be discharged.

[0004] After the valve is blocked, it needs to be cleaned. The stop valve in the above scheme needs to be dismantled to effectively clean the blockage, which requires professional personnel to operate and increases labor costs. At the same time, dismantling the stop valve usually requires the system to stop running, affecting production efficiency. The downtime will cause production interruption and bring economic losses.

[0005] Therefore, in view of the above problems, an anti-clogging stop valve which is easy to clean is proposed. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The utility model provides an anti-clogging stop valve which is easy to clean, and can improve the problems existing in the related technology: to clean a clogged stop valve, the entire stop valve needs to be dismantled for effective cleaning, which requires professional personnel to operate and increases labor costs. Meanwhile, dismantling the stop valve usually requires the system to stop running, which affects production efficiency. The downtime may cause production interruption and bring economic losses.

[0008] 2. Technical solution

[0009] To solve the above problems, the utility model adopts the following technical solutions.

[0010] The embodiment of the present application provides an anti-clogging stop valve which is easy to clean, comprising a valve housing, a mounting port connected to the interior is formed at the bottom end of the valve housing, a water inlet channel and a water outlet channel are arranged inside the valve housing, a secondary filter assembly is arranged inside the valve housing, a water inlet pipe is fixedly connected to the water inlet of the valve housing, a filter tube is fixedly connected to the other end of the water inlet pipe, the filter tube is connected to the interior of the valve housing through the water inlet pipe, a primary filter assembly is arranged inside the filter tube, the primary filter assembly comprises a rotating plate, a plurality of claws are fixedly mounted on the outer edge of the rotating plate, a plurality of blocks matching the claws are fixedly mounted on the outer end of the filter tube, and the rotating plate can be detachably mounted on the outer end of the filter tube by cooperating with the claws and the blocks.

[0011] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0012] The primary filter assembly is installed in the filter tube to filter larger debris, while the secondary filter assembly is installed inside the valve housing to filter smaller dirt. The cooperation of the secondary filter assembly and the primary filter assembly can form double filtration, thereby preventing the valve core and valve seat of the stop valve from being blocked. At the same time, the secondary filter assembly can quickly remove the dirt connected to the filter screen through the threaded connection between the mounting ring and the mounting port, and the filter cartridge can be taken out by removing the rotating plate. The detachable structure of the primary filter assembly and the secondary filter assembly allows it to be quickly cleaned in case of blockage, and it can be quickly cleaned and restored to operation without the need for professional personnel to disassemble, thereby improving the overall reliability of the system.

[0013] In some embodiments, a valve cover is fixedly mounted on the top of the valve housing, a threaded sleeve is fixedly mounted on the top of the valve cover, a valve stem is threadedly connected to the threaded sleeve, and the valve stem passes through the valve cover and extends to the interior of the valve housing.

[0014] In some embodiments, a runner is fixedly connected to the top end of the valve stem, a valve core is fixedly connected to the bottom end of the valve stem, a valve seat is fixedly installed at the connection between the water inlet channel and the water outlet channel inside the valve housing, and the secondary filter assembly is located below the valve seat.

[0015] In some embodiments, the secondary filter assembly includes a dirt collecting cylinder and a mounting ring, a slip ring is fixedly mounted on the inner side of the mounting ring, the mounting ring is rotatably connected to the outer end of the dirt collecting cylinder via the slip ring, and the mounting ring is threadedly connected to the mounting port.

[0016] In some embodiments, the secondary filter assembly also includes a mounting cylinder, a plurality of connecting rods are fixedly connected between the mounting cylinder and the dirt collecting cylinder, a filter screen is installed on the inner side of the mounting cylinder, a scraper ring is fixedly installed on the outer end of the mounting cylinder, and the scraper ring abuts against the inner wall of the valve housing.

[0017] In some embodiments, the primary filtration component further includes a sealing ring and a snap ring. The snap ring is fixedly installed inside the filtration pipe. The outer end of the sealing ring is fixedly installed with a filter cartridge. The filter cartridge is blocked and installed inside the filtration pipe through the snap ring, and the filter cartridge is located at the connection between the filtration pipe and the water inlet pipe to form filtration.

[0018] In some embodiments, the primary filtration component further includes a spring. An installation groove matching the sealing ring is formed at the outer end of the filtration pipe. One end of the spring is fixedly connected to the inner side of the rotating plate, and the other end of the spring abuts against the outer end of the sealing ring. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the overall sectional structure of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the secondary filtration component of the present utility model;

[0022] Figure 4 is a schematic diagram of the structure of the primary filtration component of the present utility model;

[0023] Figure 5 of the present utility model Figure 4 schematic diagram of the structure at A in

[0024] Explanation of the reference numerals in the drawings:

[0025] 1. Valve housing;

[0026] 2. Valve cover;

[0027] 3. Valve stem;

[0028] 4. Threaded sleeve;

[0029] 5. Runner;

[0030] 6. Water inlet pipe;

[0031] 7. Filtration pipe;

[0032] 8. Secondary filtration component; 81. Sewage collection cylinder; 82. Installation cylinder; 83. Filter screen; 84. Scraping ring; 85. Connecting rod; 86. Installation ring; 87. Sliding ring;

[0033] 9. Primary filtration component; 91. Rotating plate; 92. Claw; 93. Installation groove; 94. Spring; 95. Filter cartridge; 96. Snap ring; 97. Sealing ring; 98. Block;

[0034] 10. Valve core;

[0035] 11. Valve seat;

[0036] 12. Installation port. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0038] See also Figure 1-Figure 5 , an anti-clogging stop valve which is easy to clean, comprises a valve housing 1, a mounting port 12 which is connected to the interior is opened at the bottom end of the valve housing 1, a water inlet channel and a water outlet channel are arranged inside the valve housing 1, a secondary filter assembly 8 is arranged inside the valve housing 1, a water inlet pipe 6 is fixedly connected to the water inlet of the valve housing 1, a filter tube 7 is fixedly connected to the other end of the water inlet pipe 6, the filter tube 7 is connected to the interior of the valve housing 1 through the water inlet pipe 6, a primary filter assembly 9 is arranged inside the filter tube 7, the primary filter assembly 9 comprises a rotating plate 91, a plurality of claws 92 are fixedly mounted on the outer edge of the rotating plate 91, a plurality of blocks 98 which match the claws 92 are fixedly mounted on the outer end of the filter tube 7, and the rotating plate 91 can be detachably mounted on the outer end of the filter tube 7 through the claws 92 and the blocks 98.

[0039] A valve cover 2 is fixedly installed on the top of the valve housing 1 , a threaded sleeve 4 is fixedly installed on the top of the valve cover 2 , a valve stem 3 is threadedly connected to the threaded sleeve 4 , and the valve stem 3 passes through the valve cover 2 and extends to the inside of the valve housing 1 .

[0040] The top end of the valve stem 3 is fixedly connected to a runner 5 , the bottom end of the valve stem 3 is fixedly connected to a valve core 10 , a valve seat 11 is fixedly installed at the connection point between the water inlet channel and the water outlet channel inside the valve housing 1 , and the secondary filter assembly 8 is located below the valve seat 11 .

[0041] Compared with the traditional one, the stop valve in this scheme not only has a double filtering system to prevent the valve core 10 and the valve seat 11 from being blocked, but also has the characteristic of being easy to clean, which can improve the convenience of maintenance. The valve housing 1 is provided with a water inlet channel and a water outlet channel, and the middle valve seat 11 is fixed at the connection point between the water inlet channel and the water outlet channel. At the same time, a mounting port 12 is opened at the bottom of the valve housing 1, and the mounting port 12 is connected to the water inlet channel inside the valve housing 1. By means of the mounting port 12, the secondary filter assembly 8 is installed inside the water inlet channel of the valve housing 1, that is, directly below the valve seat 11, to filter the water or liquid that is about to enter the water outlet channel through the valve seat 11.

[0042] The outer end of the valve housing 1 is fixed with an inlet pipe 6, which is connected to the water inlet channel of the valve housing 1. The other end of the inlet pipe 6 is fixed with a filter pipe 7, which is connected to the inlet pipe 6 and connected to the middle of the inlet pipe 6. The primary filter assembly 9 is installed inside the filter pipe 7 and is used for filtering like the secondary filter assembly 8. The primary filter assembly 9 is installed inside the filter pipe 7 to filter larger debris, while the secondary filter assembly 8 is installed inside the valve housing 1 to filter smaller dirt. The cooperation can form double filtration, thereby preventing the valve core 10 and the valve seat 11 of the stop valve from being blocked. At the same time, the secondary filter component 8 can quickly connect the filter screen 83 to remove dirt through the threaded connection between the mounting ring 86 and the mounting port 12, and the filter cartridge 95 can be taken out by removing the rotating plate 91. Therefore, the detachable structure of the primary filter component 9 and the secondary filter component 8 can make it possible to quickly clean up when blockage occurs. It can be quickly cleaned and restored to operation without the need for professional personnel to disassemble it. The cleaning process is simple and quick, which reduces downtime and improves the overall reliability of the system.

[0043] The valve cover 2 can be fixed to the top of the valve housing 1 by bolts, and the threaded sleeve 4 is fixed to the top of the valve cover 2. The valve stem 3 is threadedly connected to the threaded sleeve 4. At the same time, the valve stem 3 penetrates the valve cover 2 and extends to the inside of the valve housing 1, so that the valve core 10 is located above the valve seat 11. The runner 5 is fixed to the top of the valve stem 3. When the stop valve needs to be closed, it is only necessary to rotate the runner 5 to make the valve stem 3 drive the valve core 10 to move downward and abut against the valve seat 11 to form a seal.

[0044] See also Figure 2 and Figure 3 The secondary filter assembly 8 includes a dirt collecting cylinder 81 and a mounting ring 86 , a slip ring 87 is fixedly mounted on the inner side of the mounting ring 86 , the mounting ring 86 is rotatably connected to the outer end of the dirt collecting cylinder 81 through the slip ring 87 , and the mounting ring 86 is threadedly connected to the mounting port 12 .

[0045] The secondary filter assembly 8 also includes a mounting cylinder 82 , a plurality of connecting rods 85 are fixedly connected between the mounting cylinder 82 and the dirt collecting cylinder 81 , a filter screen 83 is installed inside the mounting cylinder 82 , a scraper ring 84 is fixedly installed at the outer end of the mounting cylinder 82 , and the scraper ring 84 abuts against the inner wall of the valve housing 1 .

[0046] The secondary filter assembly 8 in this scheme is mainly used for secondary filtration. A slip ring 87 is fixedly installed on the inner side of the mounting ring 86, and the dirt collecting cylinder 81 is rotatably connected to the inner side of the mounting ring 86 through the slip ring 87. The mounting port 12 and the mounting ring 86 are threadedly connected, so that the mounting ring 86 can be detachably installed with the dirt collecting cylinder 81 at the bottom of the mounting port 12. A plurality of connecting rods 85 are fixedly installed on the inner side of the dirt collecting cylinder 81, and the other ends of the plurality of connecting rods 85 are fixedly connected to the mounting cylinder 82. A filter screen 83 is installed on the top of the mounting cylinder 82, and a scraper ring 84 is fixed on the outer end of the mounting cylinder 82. The scraper ring 84 is tightly abutted against the inner wall of the valve housing 1. When liquid enters the valve housing 1 through the water inlet pipe 6 After entering the water inlet pipe, it will be filtered by the filter screen 83. At this time, the dirt will be blocked by the filter screen 83 and located between the installation cylinder 82 and the dirt collecting cylinder 81. Some of the heavier dirt will be settled in the dirt collecting cylinder 81, thereby preventing smaller dirt from adhering to the valve core 10 and the valve seat 11 and affecting the seal between the valve core 10 and the valve seat 11, thereby playing an anti-clogging role. When it is necessary to clean the secondary filter assembly 8, it is only necessary to rotate the mounting ring 86 and remove it from the mounting port 12, and the entire secondary filter assembly 8 can be removed for cleaning. During the removal process, the scraper ring 84 will also scrape the inner wall of the valve housing 1, thereby bringing out the dirt attached to the inner wall of the valve housing 1, so that it can further reduce the dirt inside the valve housing 1.

[0047] See also Figure 1 , Figure 4 as well as Figure 5 The first-stage filter assembly 9 also includes a sealing ring 97 and a snap ring 96. The snap ring 96 is fixedly installed inside the filter tube 7. A filter cartridge 95 is fixedly installed on the outer end of the sealing ring 97. The filter cartridge 95 is installed inside the filter tube 7 through the snap ring 96. The filter cartridge 95 is located at the connection between the filter tube 7 and the water inlet pipe 6 to form a filter.

[0048] The primary filter assembly 9 also includes a spring 94 . The outer end of the filter tube 7 is provided with a mounting groove 93 that matches the sealing ring 97 . One end of the spring 94 is fixedly connected to the inner side of the rotating plate 91 , and the other end of the spring 94 abuts against the outer end of the sealing ring 97 .

[0049] The primary filter assembly 9 in this scheme is mainly used to filter larger debris. The clamping ring 96 is fixed on the inner wall of the filter tube 7. When the filter cartridge 95 is installed inside the filter tube 7, one end of the filter cartridge 95 will be clamped and fixed on the clamping ring 96. The filter cartridge 95 is in the shape of a long cylinder and is located at the connection between the filter tube 7 and the water inlet pipe 6, so that the debris can be intercepted by the filter cartridge 95 inside the filter tube 7.

[0050] A mounting groove 93 is provided at the end of the filter tube 7, and the mounting groove 93 matches the sealing ring 97 so that it can be installed inside. The sealing ring 97 mainly plays a sealing role. A plurality of annularly distributed claws 92 are fixed on the outer edge of the rotating plate 91, and a plurality of blocks 98 are fixed at the end of the filter tube 7. At the same time, a spring 94 is also fixed at the outer end of the rotating plate 91. When the filter cartridge 95 is installed inside the filter tube 7, the sealing ring 97 can be stuck in the mounting groove 93. At this time, the spring 94 on the rotating plate 91 is pressed against the outer end of the sealing ring 97, so that the claws 92 and the blocks 98 are misaligned, and then the rotating plate 91 is pushed inward and rotated, so that the claws 92 and the blocks 98 overlap, and the rotating plate 91 is stuck and fixed.

[0051] When it is necessary to clean the filter cartridge 95, since the filtered debris is located in the filter tube 7, the debris can be directly flushed out by backflushing. After closing the stop valve and removing the rotating plate 91, water will flow out from the end of the filter tube 7, thereby taking out the internal garbage, thereby forming a backflushing effect. There is no need to manually take out the garbage, thereby improving the convenience of cleaning.

[0052] Working principle: The primary filter assembly 9 in this scheme is a single-layer filter, and the filter cartridge 95 is in the shape of a long cylinder, which is located at the connection between the filter tube 7 and the water inlet pipe 6, so that the debris can be intercepted by the filter cartridge 95 inside the filter tube 7, and the secondary filter assembly 8 is a second-layer filter, and a filter screen 83 is installed on the top of the installation cylinder 82. When the liquid enters the water inlet pipe of the valve housing 1 through the water inlet pipe 6, it will be filtered by the filter screen 83. At this time, the dirt will be blocked between the installation cylinder 82 and the dirt collecting cylinder 81, and some heavier dirt will be precipitated in the dirt collecting cylinder 81;

[0053] When the secondary filter assembly 8 needs to be cleaned, the entire secondary filter assembly 8 can be removed for cleaning by simply rotating the mounting ring 86 and removing it from the mounting port 12. When the filter cartridge 95 needs to be cleaned, the stop valve is closed and the rotating plate 91 is removed. Water will then flow out from the end of the filter tube 7, thereby taking out the garbage inside.

Claims

1. An anti-clogging stop valve that is easy to clean, comprising a valve housing (1), wherein a mounting opening (12) communicating with the interior is provided at the bottom end of the valve housing (1), and a water inlet channel and a water outlet channel are provided inside the valve housing (1). Features: A secondary filter assembly (8) is arranged inside the valve housing (1); a water inlet of the valve housing (1) is fixedly connected to a water inlet pipe (6); a filter tube (7) is fixedly connected to the other end of the water inlet pipe (6); the filter tube (7) is connected to the interior of the valve housing (1) via the water inlet pipe (6); and a primary filter assembly (9) is arranged inside the filter tube (7); The primary filter assembly (9) comprises a rotating plate (91), a plurality of claws (92) being fixedly mounted on the outer edge of the rotating plate (91), a plurality of blocks (98) matching the claws (92) being fixedly mounted on the outer end of the filter tube (7), and the rotating plate (91) is detachably mounted on the outer end of the filter tube (7) by means of the claws (92) cooperating with the blocks (98).

2. The anti-clogging stop valve that is easy to clean according to claim 1, characterized in that: A valve cover (2) is fixedly mounted on the top of the valve housing (1), a threaded sleeve (4) is fixedly mounted on the top of the valve cover (2), the threaded sleeve (4) is threadedly connected to a valve stem (3), and the valve stem (3) passes through the valve cover (2) and extends into the interior of the valve housing (1).

3. The anti-clogging stop valve that is easy to clean according to claim 2, characterized in that: The top end of the valve stem (3) is fixedly connected to a rotating wheel (5), the bottom end of the valve stem (3) is fixedly connected to a valve core (10), a valve seat (11) is fixedly installed at the connection point between the water inlet channel and the water outlet channel inside the valve housing (1), and the secondary filter assembly (8) is located below the valve seat (11).

4. The anti-clogging stop valve that is easy to clean according to claim 1, characterized in that: The secondary filter assembly (8) comprises a dirt collecting cylinder (81) and a mounting ring (86); a slip ring (87) is fixedly mounted on the inner side of the mounting ring (86); the mounting ring (86) is rotatably connected to the outer end of the dirt collecting cylinder (81) via the slip ring (87); and the mounting ring (86) is threadedly connected to the mounting port (12).

5. The anti-clogging stop valve that is easy to clean according to claim 4, characterized in that: The secondary filter assembly (8) further comprises a mounting cylinder (82), a plurality of connecting rods (85) being fixedly connected between the mounting cylinder (82) and the dirt collecting cylinder (81), a filter screen (83) being installed on the inner side of the mounting cylinder (82), and a scraper ring (84) being fixedly installed on the outer end of the mounting cylinder (82), the scraper ring (84) being in contact with the inner wall of the valve housing (1).

6. The anti-clogging stop valve that is easy to clean according to claim 1, characterized in that: The primary filter assembly (9) further comprises a sealing ring (97) and a snap ring (96); the snap ring (96) is fixedly mounted inside the filter tube (7); a filter cartridge (95) is fixedly mounted on the outer end of the sealing ring (97); the filter cartridge (95) is mounted inside the filter tube (7) by blocking the snap ring (96); and the filter cartridge (95) is located at the connection between the filter tube (7) and the water inlet pipe (6) to form filtering.

7. The anti-clogging stop valve that is easy to clean according to claim 6, characterized in that: The primary filter assembly (9) further comprises a spring (94); the outer end of the filter tube (7) is provided with a mounting groove (93) matching the sealing ring (97); one end of the spring (94) is fixedly connected to the inner side of the rotating plate (91); and the other end of the spring (94) abuts against the outer end of the sealing ring (97).

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