Angle type stop and check valve

Abstract

The invention provides an angle type stop and check valve, and belongs to the technical field of angle type stop and check valves. Comprising a valve body, a bottom drainage module and port closing valve modules, the bottom drainage module is arranged on the lower surface of the valve body, and the port closing valve modules are arranged at the bottom and the left end of the valve body. By arranging the valve rod rust removal module, rust on the surface of the valve rod can be removed in the valve rod rust removal module when the valve rod of the device spirally moves, industrial butter can be used for maintenance after the rust is removed, and compared with the situation that a valve rod on a traditional device is not treated in time after being rusted, so that threads of the valve rod are rusted and penetrated by the rust, and the service life of the valve rod is prolonged. According to the device, through rust removal and industrial butter maintenance, when the valve rod spirally moves, rust removal treatment and maintenance can be conducted on threads, the service life of the valve rod is prolonged to a certain degree, and the service life of the valve rod is prolonged to a certain degree. And the service life of the whole device is prolonged to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of angle stop and check valve technology, and particularly to an angle stop and check valve. Background Technology

[0002] Angle gate check valve combines the functions of a gate valve and a check valve. It typically includes components such as a valve body, valve cover, valve stem, and valve disc. The valve body has a valve cavity, a first water inlet, a second water inlet, and an inspection port that communicate with the valve cavity. A valve cover is located at the inspection port, and a valve stem extending into the valve cavity is threaded onto the valve cover. A slide cylinder is located inside the valve cavity, with its two ends communicating with the first water inlet and the inspection port, respectively. A connecting port is located on the side wall of the slide cylinder, and a valve disc is slidably connected inside the slide cylinder.

[0003] Although existing angle gate and check valves are relatively complete in function, they still have certain drawbacks: First, when existing angle gate and check valves need maintenance or replacement, the water inside the device cannot be completely drained after disassembly. After workers remove the device, water will spill onto their clothes, which can increase physical discomfort during operation. Second, existing angle gate and check valves generally have internal filters to remove impurities from the water. However, most of these filters are directly fixed inside the device. Over time, impurities in the water will clog the filters, and because of this, the water cannot effectively filter out impurities. The filters are mostly fixed inside the device and cannot be replaced. Replacing the filter requires disassembling the entire device, which can interrupt the overall work progress and affect the normal operation. Whenever the filter gets clogged, workers have to disassemble and repair it, which also increases the labor intensity of the workers. Third, the stems of existing angle gate and check valves generally stop spiraling after rotating to open or close the valve disc. If the stem does not spiral for a long time, it will rust, which can easily cause the stem to rust and seize up. This reduces the service life of the stem and, consequently, the service life of the entire device. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide an angle-type shut-off and check valve to address the following issues: Firstly, after use, residual water inside existing angle-type shut-off and check valves can spill onto workers' clothes during disassembly, increasing their discomfort. Secondly, the filter screen in existing angle-type shut-off and check valves is generally fixed to the valve body and cannot be removed for cleaning after clogging. Clogging usually requires disassembling the entire device, interrupting normal operation and impacting overall function. Furthermore, each time the filter screen becomes clogged, workers need to remove and repair it, increasing their workload. Thirdly, the valve stem of existing angle-type shut-off and check valves is prone to rusting and seizing after spiral motion, potentially reducing its lifespan and consequently affecting the overall lifespan of the device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] An angle-type shut-off and check valve includes a valve body, a bottom drain module on the lower surface of the valve body, port closure valve modules at the bottom and left end of the valve body, a filter screen module on one side of the port closure valve module, a pipe connection end on one side of the filter screen module, a valve cover on the top of the valve body, the valve cover being threadedly connected to the valve body by valve cover bolts, a valve stem rust removal module fixedly connected to the top of the valve cover, a valve stem being threadedly connected to the inner wall of the valve stem rust removal module, and a valve stem disc at one end of the valve stem.

[0007] Optionally, the bottom drainage module includes an air compressor base, with a threaded plug hole at the top of the air compressor base, a valve body fixedly connected to the top of the air compressor base, a threaded drainage hole at the bottom of the valve body, an air compressor on one side of the air compressor base, the air compressor being threadedly connected to the air compressor base via an air compressor bolt, an air supply plate fixedly connected to one side of the air compressor, a bottom threaded connection end fixedly connected to the top of the air supply plate, and an air supply hose threadedly connected to the surface of the bottom threaded connection end.

[0008] Optionally, the bottom threaded connection end is threadedly connected to the top threaded connection end via an air supply hose. An airbag base is fixedly connected to the top of the top threaded connection end. An airbag column is provided on the top of the airbag base. An airbag disc is provided on the top of the airbag column. A hollow threaded plug is fixedly connected to the airbag base. A valve body is threadedly connected to the hollow threaded plug via an inflator base. The threaded plug hole and the hollow threaded plug are mutually compatible. The threaded drain hole and the hollow threaded plug are mutually compatible.

[0009] Optionally, the port closure valve module includes a closure valve housing, a valve body is fixedly connected to one side of the closure valve housing, a filter screen module is fixedly connected to the other side of the closure valve housing, a closure valve housing cover is provided on the top of the closure valve housing, the closure valve housing cover is threadedly connected to the closure valve housing via a housing cover bolt, and a threaded sleeve is fixedly connected to the top of the closure valve housing cover.

[0010] Optionally, the inner wall of the threaded sleeve is threadedly connected to a valve stem of a sealing valve, the top of the valve stem of the sealing valve is provided with a valve stem disc of the sealing valve, the threaded sleeve is mounted with a valve stem shaft of the sealing valve through the valve stem of the sealing valve, the surface of the valve stem shaft of the sealing valve is provided with a shaft sleeve, and the bottom of the shaft sleeve is fixedly connected to a valve disc.

[0011] Optionally, the filter module includes a filter box, and a left slide rail and a right slide rail are fixedly connected to the inner wall of the filter box from left to right. A left filter screen is slidably connected to the inner wall of the left slide rail, and a right filter screen is slidably connected to the inner wall of the right slide rail. A filter box cover is provided on the top of the filter box, and the filter box cover is threadedly connected to the filter box through filter box cover bolts.

[0012] Optionally, the top of the filter screen cover is fixedly connected with a left bolt base and a right bolt base from left to right. The left bolt base has a left threaded hole on its front side, and a left bolt is threaded to the inner wall of the left threaded hole. The left bolt base is connected to the left filter screen through the left bolt. The right bolt base has a right threaded hole on its front side, and a right bolt is threaded to the inner wall of the right threaded hole.

[0013] Optionally, the right bolt base is connected to the right filter screen via a right bolt thread. The top of the filter screen box cover has a left filter screen groove and a right filter screen groove sequentially opened from left to right. The left filter screen groove and the left filter screen are mutually adapted to each other, and the right filter screen groove and the right filter screen are mutually adapted to each other.

[0014] Optionally, the valve stem rust removal module includes a valve stem adapter, a U-shaped plate is fixedly connected to the surface of the valve stem adapter, and a top valve stem adapter is fixedly connected to the valve stem adapter through the U-shaped plate. The inner walls of the valve stem adapter and the top valve stem adapter are provided with upper thread and lower thread from top to bottom, and a first top friction block is provided at the top of the upper thread.

[0015] Optionally, the bottom of the upper threaded wire is provided with a first bottom friction block, the top of the lower threaded wire is provided with a second top friction block, the bottom of the lower threaded wire is provided with a second bottom friction block, the surface of the valve stem is fixedly connected with a grease output threaded end, the inner wall of the grease output threaded end is threadedly connected with a grease connector, the inner wall of the grease connector is threadedly connected with a grease gun, and the inner wall of the valve stem is provided with a grease release port.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above solution, by setting a bottom drain module and a port sealing valve module, the device can temporarily seal the port of the valve body in advance when it needs to be disassembled and repaired. This cuts off the continued water supply from the water pipe and prevents water from flowing back into the valve body, thereby controlling the volume of water in the valve body. The bottom drain module allows the water in the valve body to be quickly drained after the port sealing valve is closed. This ensures that no water can be poured out of the valve body when the device needs to be disassembled, replaced, or repaired. To a certain extent, this can reduce the possibility of workers getting their clothes wet and experiencing physical discomfort due to residual water in the valve body being poured out during disassembly.

[0018] By incorporating a filter module installed externally on the valve body, consisting of a left and a right filter, when the left filter becomes clogged after normal filtration, the worker can easily remove the right filter and quickly insert it into the water. Simultaneously, the worker can pull out and secure the left filter, allowing for the removal of debris. Compared to traditional devices where the filter is fixed inside the unit, this device's filter module allows for filter replacement without interrupting normal operation. This eliminates the need to stop the entire process or disassemble the clogged device, significantly reducing the workload for maintenance workers.

[0019] By incorporating a valve stem rust removal module, the rust on the valve stem surface can be removed within the module during its spiral motion. After rust removal, industrial grease can be applied for maintenance. This is significantly different from traditional devices where rust is not treated promptly, causing the rust to penetrate the valve stem's threads and preventing spiral motion, thus reducing the valve stem's lifespan. This device removes rust and applies industrial grease during the valve stem's spiral motion, extending the valve stem's lifespan and, consequently, the overall lifespan of the device. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0021] Figure 1 A schematic diagram of an angle-type shut-off and check valve;

[0022] Figure 2 for Figure 1 A partially enlarged structural diagram;

[0023] Figure 3 A schematic diagram of the bottom drain module of an angle-type shut-off and check valve;

[0024] Figure 4 for Figure 3 A partially enlarged structural diagram;

[0025] Figure 5 A schematic diagram of the angle-type shut-off and check valve port closure valve module;

[0026] Figure 6 for Figure 5 A partially enlarged structural diagram;

[0027] Figure 7 A schematic diagram of the angle-type shut-off and check valve filter module;

[0028] Figure 8 for Figure 7 A partially enlarged structural diagram;

[0029] Figure 9 Schematic diagram of the rust removal module for the stem of an angle-type stop and check valve;

[0030] Figure 10 for Figure 9 A partially enlarged structural diagram.

[0031] Figure label:

[0032] 1. Valve body; 2. Bottom drain module; 201. Inflator base; 202. Inflator; 203. Air supply plate; 204. Bottom threaded connection end; 205. Air supply hose; 206. Top threaded connection end; 207. Airbag base; 208. Airbag column; 209. Airbag disc; 210. Airbag disc; 3. Port sealing valve module; 301. Sealing valve housing; 302. Sealing valve housing cover; 303. Threaded sleeve; 304. Sealing valve stem; 305. Sealing valve stem disc; 306. Sealing valve stem shaft; 307. Shaft sleeve; 308. Valve disc; 4. Filter module; 401. Filter box; 402. Left slide rail; 403. Right slide rail; 4 04. Left side filter screen; 405. Right side filter screen; 406. Filter screen box cover; 407. Left side bolt base; 408. Right side bolt base; 409. Left side bolt; 410. Right side bolt; 5. Pipe connection end; 6. Valve cover; 7. Valve stem rust removal module; 701. Valve stem adapter; 702. U-shaped plate; 703. Top valve stem adapter; 704. Upper threaded thread; 705. Lower threaded thread; 706. First top friction block; 707. First bottom friction block; 708. Second top friction block; 709. Second bottom friction block; 710. Grease output threaded end; 711. Grease connector; 712. Grease gun; 8. Valve stem; 9. Valve stem disc.

[0033] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0034] The following is a detailed description of an angle-type shut-off and check valve provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0035] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0036] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0037] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0038] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0039] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an angle-type shut-off and check valve, including a valve body 1. A bottom drain module 2 is provided on the lower surface of the valve body 1. A port sealing valve module 3 is provided at the bottom and left end of the valve body 1. A filter screen module 4 is provided on one side of the port sealing valve module 3. A pipe connection end 5 is provided on one side of the filter screen module 4. A valve cover 6 is provided on the top of the valve body 1. The valve cover 6 is threadedly connected to the valve body 1 by a valve cover bolt. A valve stem rust removal module 7 is fixedly connected to the top of the valve cover 6. A valve stem 8 is threadedly connected to the inner wall of the valve stem rust removal module 7. A valve stem disc 9 is provided at one end of the valve stem 8.

[0040] Bottom drain module 2 is welded to valve body 1. Port sealing valve module 3 is welded to bottom drain module 2. Filter screen module 4 is also welded to port sealing valve module 3. Pipe connection end 5 is also welded to filter screen module 4. Valve cover 6 is placed on top of valve body 1, and valve cover bolts are used to assemble valve cover 6 and valve body 1 together. Valve stem rust removal module 7 is welded to top of valve cover 6. Valve stem 8 is welded together using valve stem disc 9 using welding technology. The assembled valve stem 8 is then installed into valve stem rust removal module 7 to complete the assembly.

[0041] In use, the water supply pipe and the water inlet pipe are installed on the outlet and inlet pipe connection ends 5 of the valve body 1, respectively. When the device needs to be used, the operator needs to hold the valve stem disc 9 and rotate it to rotate the valve stem 8, which in turn lifts the valve gate at one end of the valve stem 8. This allows water in the inlet pipe to enter the valve body 1 through the inlet end, then be transported to the outlet end of the valve body 1, and finally enter the water supply pipe. While the valve stem 8 is rotating, it rotates within the valve stem rust removal module 7, thus removing the rust from the valve stem 8 and performing routine maintenance on the rust. When the entire device needs to be dismantled, the worker can first close the port sealing valve module 3, then close and unscrew the bottom drain module 2 to allow the residual water in the valve body 1 to drain out. When the water in the valve body 1 stops flowing, the worker can then remove the entire device from the water supply pipe and inlet pipe. When one of the filter screens in the filter screen module 4 is clogged, the worker only needs to unfix the other filter screen in the filter screen module 4 and insert it into the water. Then, the clogged filter screen is pulled out and refixed. After pulling it out and fixing it, the debris on the filter screen is removed. The cleaned filter screen can be fixed and left in place, waiting to be replaced by the filter screen in the water, thus completing the operation.

[0042] like Figures 3 to 6 As shown, in this embodiment, the bottom drainage module 2 includes an air compressor base 201. The top of the air compressor base 201 is provided with a threaded plug hole. A valve body 1 is fixedly connected to the top of the air compressor base 201. A threaded drainage hole is provided at the bottom of the valve body 1. An air compressor 202 is provided on one side of the air compressor base 201. The air compressor 202 is threadedly connected to the air compressor base 201 by an air compressor bolt. An air supply plate 203 is fixedly connected to one side of the air compressor 202. A bottom threaded connection end 204 is fixedly connected to the top of the air supply plate 203. An air supply hose 205 is threadedly connected to the surface of the bottom threaded connection end 204.

[0043] The bottom threaded connection end 204 is threadedly connected to the top threaded connection end 206 via the air supply hose 205. The top of the top threaded connection end 206 is fixedly connected to the airbag base 207. The top of the airbag base 207 is provided with an airbag column 208. The top of the airbag column 208 is provided with an airbag disc 209. The airbag base 207 is fixedly connected to a hollow threaded plug 210. The hollow threaded plug 210 is threadedly connected to the valve body 1 via the inflator base 201. The threaded plug hole and the hollow threaded plug 210 are mutually compatible. The threaded drain hole and the hollow threaded plug 210 are mutually compatible.

[0044] The inflator base 201 is welded to the bottom of the valve body 1, while the threaded plug hole and the inflator base 201 are integrally formed. The threaded drain hole and the valve body 1 are integrally formed. The air supply plate 203 is integrally connected to the inflator 202, and the bottom threaded connection end 204 is welded to the top of the air supply plate 203. The assembled inflator 202 is installed onto the inflator base 201 using inflator bolts. The airbag column 208 and the airbag base 207 are integrally connected, while the airbag disc 209 and the airbag column... 208 are connected as one piece. The top threaded connection end 206 is welded to the bottom of the airbag base 207. The assembled airbag base 207 is welded to the hollow inner wall of the hollow threaded plug 210. The air supply hose 205 is screwed between the bottom threaded connection end 204 and the top threaded connection end 206. Finally, the hollow threaded plug 210 is screwed into the inflator base 201 and screwed out from the threaded plug hole of the inflator base 201 until it is screwed into the threaded drain hole of the valve body 1, thus completing the assembly.

[0045] When using the module, after assembling it according to the above steps, when screwing the hollow threaded plug 210 into the threaded drain hole of the valve body 1, start the inflator 202. The gas produced by the inflator 202 will first enter the gas delivery plate 203, and then enter the gas delivery hose 205 through the bottom threaded connection end 204. The gas then enters the top threaded connection end 206 through the gas delivery hose 205. After entering the top threaded connection end 206, the gas passes through the airbag base 207 until it enters the airbag column 208. After the airbag column 208 is inflated, it will become firm. At this time, the remaining gas enters the airbag disc 209. After the airbag disc 209 is inflated, it will bulge out from the hollow inner wall cavity of the hollow threaded plug 210, thus... To reduce the possibility of water overflow, the gaps in the hollow threaded plug and threaded drain hole are filled. When it is necessary to drain the water from the valve body 1, the worker first needs to use the air inflator 202 to remove the gas from the air bladder column 208 and air bladder disc 209, causing the air bladder column 208 and air bladder disc 209 to shrink and deform. Then, the worker rotates the hollow threaded plug 210 until it is removed from the air inflator base 201, so that the water in the valve body 1 can be released from the threaded drain hole and threaded plug hole. After the water in the valve body 1 is released, the worker only needs to rotate the hollow threaded plug 210 back and then re-inflate the air bladder column 208 and air bladder disc 209 to complete the operation.

[0046] The port closure valve module 3 includes a closure valve housing 301. A valve body 1 is fixedly connected to one side of the closure valve housing 301, and a filter screen module 4 is fixedly connected to the other side of the closure valve housing 301. A closure valve housing cover 302 is provided on the top of the closure valve housing 301. The closure valve housing cover 302 is threadedly connected to the closure valve housing 301 by a housing cover bolt. A threaded sleeve 303 is fixedly connected to the top of the closure valve housing cover 302.

[0047] The inner wall of the threaded sleeve 303 is threadedly connected to the valve stem 304 of the sealing valve. The top of the valve stem 304 is provided with a valve stem disc 305 of the sealing valve. The threaded sleeve 303 is mounted with a valve stem shaft 306 of the sealing valve through the valve stem 304. The surface of the valve stem shaft 306 is provided with a shaft sleeve 307. The bottom of the shaft sleeve 307 is fixedly connected to a valve disc 308.

[0048] A valve body 1 is welded to one side of the closed valve housing 301, and a filter module 4 is welded to the other side. A threaded sleeve 303 is welded to the top of the closed valve housing cover 302, and a rotating shaft sleeve 307 is welded to the top of the valve disc 308. The closed valve stem rotating shaft 306 is installed into the rotating shaft sleeve 307. The closed valve stem 304 and the closed valve stem disc 305 are welded together using welding technology. Then, the closed valve stem 304 is rotated into the threaded sleeve 303 and then rotated out of the threaded sleeve 303. The assembled valve disc 308 is then installed onto the other end of the closed valve stem 304 using the closed valve stem rotating shaft 306. Finally, the assembled closed valve housing cover 302 is installed onto the closed valve housing 301 using housing cover bolts, completing the assembly.

[0049] When the device needs to be circulated with water, the operator needs to rotate the valve stem disc 305 of the sealing valve, which in turn rotates the valve stem 304. The valve stem 304 rotates within the threaded sleeve 303, thus moving the valve stem 304 up and down. The shaft inside the valve stem shaft 306 rotates, while the shaft outside the valve stem shaft 306 does not rotate. This means that when the valve stem 304 moves vertically, it drives the valve disc 308 to move vertically, causing the valve disc 308 to rise. At this point, water can enter the valve body 1. When the device needs to be disassembled, simply reverse the operation to lower the valve disc 308 back down, thus blocking the water flow and completing the operation.

[0050] By setting up a bottom drain module 2 and a port sealing valve module 3, the device can temporarily seal the port of valve body 1 in advance using the port sealing valve module 3 when it needs to be disassembled and repaired. This cuts off the continued water supply from the water pipe and prevents water from flowing back into valve body 1, thereby controlling the volume of water in valve body 1. After the port sealing valve module 3 is closed, the water in valve body 1 can be quickly drained through the bottom drain module 2. This ensures that when the device needs to be disassembled, replaced, or repaired, no water can be poured out of valve body 1. This can, to a certain extent, reduce the possibility of workers getting their clothes wet due to the residual water in valve body 1 being poured out during disassembly, thus reducing the possibility of workers getting wet and experiencing physical discomfort.

[0051] like Figures 7 to 8 As shown, in this embodiment, the filter module 4 includes a filter box 401. The inner wall of the filter box 401 is fixedly connected to a left slide rail 402 and a right slide rail 403 from left to right. A left filter 404 is slidably connected to the inner wall of the left slide rail 402, and a right filter 405 is slidably connected to the inner wall of the right slide rail 403. A filter box cover 406 is provided on the top of the filter box 401. The filter box cover 406 is threadedly connected to the filter box 401 by a filter box cover bolt.

[0052] The top of the filter screen cover 406 is fixedly connected with a left bolt base 407 and a right bolt base 408 from left to right. The left bolt base 407 has a left threaded hole on its front side, and a left bolt 409 is threadedly connected to the inner wall of the left threaded hole. The left bolt base 407 is threadedly connected to the left filter screen 404 through the left bolt 409. The right bolt base 408 has a right threaded hole on its front side, and a right bolt 410 is threadedly connected to the inner wall of the right threaded hole.

[0053] The right bolt base 408 is threadedly connected to the right filter screen 405 via the right bolt 410. The top of the filter screen box cover 406 has a left filter screen groove and a right filter screen groove from left to right. The left filter screen groove and the left filter screen 404 are mutually compatible, and the right filter screen groove and the right filter screen 405 are mutually compatible.

[0054] A port-sealing valve module 3 is welded to one side of the filter box 401 using welding technology. The left slide rail 402 and the right slide rail 403 are welded to the inner wall of the filter box 401. The left filter 404 is installed into the left slide rail 402, and the right filter 405 is installed into the right slide rail 403. The left and right filter grooves are integrally formed with the filter box cover 406. The left bolt base 407 and the right bolt base 408 are welded to the top of the filter box cover 406. The assembled filter box cover 406 is installed into the top of the filter box 401 using filter box cover bolts. After lifting the left filter 404 and the right filter 405, the left bolt 409 and the right bolt 410 are screwed into the left bolt base 407 and the right bolt base 408 respectively, and then passed through and screwed into the left filter 404 and the right filter 405 in sequence to complete the assembly and fixation.

[0055] In use, the worker first loosens the left bolt 409 of the left filter screen 404, allowing the left filter screen 404 to slide into the water along the left slide rail 402. The left filter screen 404, now in the water, serves as the initial filter. When the left filter screen 404 becomes clogged after prolonged use in the water, the worker needs to loosen the right bolt 410 and slide the right filter screen 405 into the water along the right slide rail 403 to serve as the subsequent filter. Then, the worker can pull out the left filter screen 404 and use the left bolt 409 to screw it back into the left bolt base 407 and into the left filter screen 404 to secure it. The worker can then use a high-pressure water gun to clean the debris off the left filter screen 404, making it easier to replace the right filter screen 405 later. This completes the operation.

[0056] By setting up a filter module 4, which is installed on the outside of the valve body 1, and the filter module 4 is equipped with a left filter 404 and a right filter 405, when the left filter 404 becomes clogged after normal filtration, the worker can unsecure the right filter 405 and quickly insert it into the water. At the same time, the worker can pull out and secure the left filter 404, and then clean the debris off the left filter 404. Compared with traditional devices that fix the filter inside the device, this device's filter module 4 has the advantage of being able to replace the filter without stopping the normal operation of the device. This means that when cleaning the filter, the normal operation process does not need to be stopped, and the worker does not need to disassemble the entire clogged device. This reduces the labor intensity of disassembly and maintenance to a certain extent.

[0057] like Figures 9 to 10 As shown, in this embodiment, the valve stem rust removal module 7 includes a valve stem adapter 701, a U-shaped plate 702 is fixedly connected to the surface of the valve stem adapter 701, and a top valve stem adapter 703 is fixedly connected to the valve stem adapter 701 through the U-shaped plate 702. The inner walls of the valve stem adapter 701 and the top valve stem adapter 703 are provided with an upper thread 704 and a lower thread 705 from top to bottom, and a first top friction block 706 is provided at the top of the upper thread 704.

[0058] The bottom of the upper threaded wire 704 is provided with a first bottom friction block 707, the top of the lower threaded wire 705 is provided with a second top friction block 708, the bottom of the lower threaded wire 705 is provided with a second bottom friction block 709, the surface of the valve stem adapter 701 is fixedly connected with a grease output thread end 710, the inner wall of the grease output thread end 710 is threadedly connected with a grease connector 711, and the inner wall of the grease connector 711 is threadedly connected with a grease gun 712.

[0059] The U-shaped plate 702 is welded between the valve stem adapter 701 and the top valve stem adapter 703. The valve stem adapter 701 and the top valve stem adapter 703 are welded together with an upper thread 704 and a lower thread 705. The top and bottom of the upper thread 704 are welded together with a first top friction block 706 and a first bottom friction block 707. The top and bottom of the lower thread 705 are welded together with a second top friction block 708 and a second bottom friction block 709. The surface of the valve stem adapter 701 is welded with a grease output thread end 710. The grease connector 711 is screwed into the grease output thread end 710, and then the grease gun 712 is screwed onto the grease connector 711. The grease release port is integrally formed with the valve stem adapter 701, completing the assembly.

[0060] During use, when the valve stem 8 is screwed into the valve stem adapter 701 of the valve stem rust removal module 7, the threads of the valve stem 8 will move between the upper thread 704 and the lower thread 705. When the threads of the valve stem 8 move between the upper thread 704 and the lower thread 705, the threads will be rubbed by the first top friction block 706, the first bottom friction block 707, the second top friction block 708, and the second bottom friction block 709, thereby removing the rust from the threads of the valve stem 8. Then, the worker can put industrial lubricating grease into the grease gun 712 and use the grease gun 712 to push the industrial lubricating grease into the valve stem adapter 701 along the grease connector 711 and the grease output thread end 710, and squeeze it out from the grease release port of the valve stem adapter 701 to lubricate the threads of the valve stem 8, thereby removing rust and maintaining and lubricating the valve stem 8, thus extending the service life of the valve stem 8, and consequently extending the service life of the entire device, completing the operation.

[0061] By incorporating a valve stem rust removal module 7, the rust on the surface of the valve stem 8 can be removed within the module 7 during its spiral motion. After rust removal, industrial grease can be applied for maintenance. In contrast, with traditional devices where rust is not treated promptly, causing rust to penetrate the threads of the valve stem 8 and preventing it from spiraling, thus reducing its lifespan, this device removes rust and applies industrial grease during the spiral motion of the valve stem 8, extending its lifespan and, consequently, the overall lifespan of the device.

[0062] The working principle of the technical solution provided by this invention is as follows: The water supply pipe and the water inlet pipe are respectively installed on the pipe connection end 5 of the outlet and inlet ends of the valve body 1. When the device needs to be used, the operator needs to hold the valve stem disc 9 and rotate it to make the valve stem 8 rotate. This causes the valve gate at one end of the valve stem 8 to lift, allowing water in the inlet pipe to enter the valve body 1 through the inlet end, then be transported to the outlet end of the valve body 1, and finally enter the water supply pipe. While the valve stem 8 is rotating, it rotates within the valve stem rust removal module 7, thus removing the rust from the valve stem 8 and performing routine maintenance on the rust. When the entire device needs to be dismantled, the operator can first close the valve at the port. Module 3 is closed, then the bottom drain module 2 is closed and unscrewed, allowing the remaining water in valve body 1 to drain completely. When the water in valve body 1 stops flowing, the worker can remove the entire device from the water supply and inlet pipes. When one of the filters in filter module 4 becomes clogged, the worker only needs to unsecure the other filter and insert it into the water, then pull out the clogged filter and resecure it. After removing and securing it, the debris on the filter screen is cleaned, and the cleaned filter screen can be left in place to replace the filter screen in the water. When the hollow threaded plug 210 is screwed into the threaded drain hole of valve body 1, the air compressor 202 is started. The gas generated by the air compressor 202 first enters the air supply plate 203, and then flows through the bottom thread... The gas enters the air supply hose 205 through the connecting end 204, and then enters the top threaded connecting end 206 through the air supply hose 205. After entering the top threaded connecting end 206, the gas passes through the airbag base 207 until it enters the airbag column 208. The airbag column 208 becomes firm after inflation, and the remaining gas enters the airbag disc 209. The airbag disc 209 then expands out of the hollow inner wall cavity of the hollow threaded plug 210 after inflation, thereby filling the gap between the hollow threaded plug and the threaded drain hole, reducing the possibility of water overflow. When it is necessary to drain the water in the valve body 1, the worker needs to first use the air inflator 202 to remove the gas from the airbag column 208 and the airbag disc 209, causing the airbag column 208 and the airbag disc 209 to shrink and deform. Then the worker... Rotate the hollow threaded plug 210 until it is removed from the air compressor base 201, allowing water in the valve body 1 to be released through the threaded drain hole and the threaded plug hole. After the water in the valve body 1 is released, the worker only needs to rotate the hollow threaded plug 210 back and then re-inflate the air bladder column 208 and air bladder disc 209. When the entire device needs to be circulated with water, the worker needs to rotate the valve stem disc 305 of the sealing valve, causing the valve stem 304 of the sealing valve to rotate. The valve stem 304 of the sealing valve rotates within the threaded sleeve 303, thus achieving the up-and-down movement of the valve stem 304. The shaft inside the valve stem shaft 306 of the sealing valve rotates, while the shaft outside the valve stem shaft 306 does not rotate.This causes the valve stem 304 of the closed valve to move vertically, which in turn drives the valve disc 308 to move vertically, causing the valve disc 308 to rise. Water can then enter the valve body 1. When disassembling the device, simply reverse the operation to lower the valve disc 308, thus blocking water flow. The worker first loosens the left bolt 409 of the left filter screen 404, allowing the left filter screen 404 to slide into the water along the left slide rail 402. The left filter screen 404 serves as the initial filter. When the left filter screen 404 becomes clogged after prolonged use in the water, the worker needs to loosen the right bolt 410, allowing the right filter screen 405 to slide into the water along the right slide rail 403, serving as the subsequent filter. Then, the worker can pull out the left filter screen 404 and use the left bolt 409 to screw back into the left bolt base 407 and then into the left filter screen 404 to secure it. Then, the worker can use high pressure... The water gun cleans the debris from the left filter screen 404, facilitating the subsequent replacement of the right filter screen 405. When the valve stem 8 is screwed into the valve stem adapter 701 of the valve stem derusting module 7, the threads of the valve stem 8 move between the upper thread 704 and the lower thread 705. As the threads move between these two threads, they are agitated by the first top friction block 706, the first bottom friction block 707, the second top friction block 708, and the second bottom friction block 705. 09. Friction removes rust from the threads of the valve stem 8. Then, the worker can put industrial lubricating grease into the grease gun 712 and use it to push the grease through the grease connector 711 and the grease output thread 710 into the valve stem adapter 701. The grease is then squeezed out from the grease release port of the valve stem adapter 701 and lubricated onto the threads of the valve stem 8. This removes rust and lubricates the valve stem 8, extending its service life and consequently the overall service life of the device.

[0063] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0064] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An angle-type shut-off and check valve, characterized in that, The valve includes a valve body, the lower surface of which is provided with a bottom drain module. The bottom and left end of the valve body are provided with port sealing valve modules. One side of the port sealing valve module is provided with a filter screen module. One side of the filter screen module is provided with a pipe connection end. The top of the valve body is provided with a valve cover. The valve cover is threadedly connected to the valve body by valve cover bolts. The top of the valve cover is fixedly connected with a valve stem rust removal module. The inner wall of the valve stem rust removal module is threadedly connected to a valve stem. One end of the valve stem is provided with a valve stem disc.

2. The angle-type shut-off and check valve according to claim 1, characterized in that, The bottom drainage module includes an air compressor base, with a threaded plug hole at the top of the air compressor base. A valve body is fixedly connected to the top of the air compressor base, and a threaded drainage hole is provided at the bottom of the valve body. An air compressor is provided on one side of the air compressor base, and the air compressor is threadedly connected to the air compressor base via an air compressor bolt. An air supply plate is fixedly connected to one side of the air compressor, and a bottom threaded connection end is fixedly connected to the top of the air supply plate. An air supply hose is threadedly connected to the surface of the bottom threaded connection end.

3. The angle-type shut-off and check valve according to claim 2, characterized in that, The bottom threaded connection end is threadedly connected to the top threaded connection end via an air supply hose. An airbag base is fixedly connected to the top of the top threaded connection end. An airbag column is provided on the top of the airbag base. An airbag disc is provided on the top of the airbag column. A hollow threaded plug is fixedly connected to the airbag base. A valve body is threadedly connected to the hollow threaded plug via an inflator base. The threaded plug hole and the hollow threaded plug are mutually compatible. The threaded drain hole and the hollow threaded plug are mutually compatible.

4. The angle-type shut-off and check valve according to claim 1, characterized in that, The port closure valve module includes a closure valve housing, a valve body is fixedly connected to one side of the closure valve housing, a filter screen module is fixedly connected to the other side of the closure valve housing, a closure valve housing cover is provided on the top of the closure valve housing, the closure valve housing cover is threadedly connected to the closure valve housing through a housing cover bolt, and a threaded sleeve is fixedly connected to the top of the closure valve housing cover.

5. The angle-type shut-off and check valve according to claim 4, characterized in that, The inner wall of the threaded sleeve is threadedly connected to the valve stem of the sealing valve. The top of the valve stem of the sealing valve is provided with a valve stem disc of the sealing valve. The threaded sleeve is mounted with a valve stem shaft of the sealing valve through the valve stem of the sealing valve. The surface of the valve stem shaft of the sealing valve is provided with a shaft sleeve. The bottom of the shaft sleeve is fixedly connected to a valve disc.

6. The angle-type shut-off and check valve according to claim 1, characterized in that, The filter module includes a filter box. The inner wall of the filter box is fixedly connected to a left slide rail and a right slide rail from left to right. A left filter screen is slidably connected to the inner wall of the left slide rail, and a right filter screen is slidably connected to the inner wall of the right slide rail. The top of the filter box is provided with a filter box cover, and the filter box cover is threadedly connected to the filter box via filter box cover bolts.

7. The angle-type shut-off and check valve according to claim 6, characterized in that, The top of the filter screen box cover is fixedly connected with a left bolt base and a right bolt base from left to right. The left bolt base has a left threaded hole on its front side, and a left bolt is threaded to the inner wall of the left threaded hole. The left bolt base is connected to the left filter screen through the left bolt. The right bolt base has a right threaded hole on its front side, and a right bolt is threaded to the inner wall of the right threaded hole.

8. The angle-type shut-off and check valve according to claim 7, characterized in that, The right bolt base is connected to the right filter screen via a right bolt thread. The top of the filter screen box cover has a left filter screen groove and a right filter screen groove opened sequentially from left to right. The left filter screen groove and the left filter screen are mutually compatible, and the right filter screen groove and the right filter screen are mutually compatible.

9. The angle-type shut-off and check valve according to claim 1, characterized in that, The valve stem rust removal module includes a valve stem adapter, a U-shaped plate is fixedly connected to the surface of the valve stem adapter, and a top valve stem adapter is fixedly connected to the valve stem adapter through the U-shaped plate. The inner walls of the valve stem adapter and the top valve stem adapter are provided with upper thread and lower thread from top to bottom, and a first top friction block is provided at the top of the upper thread.

10. The angle-type shut-off and check valve according to claim 9, characterized in that, The upper threaded wire has a first bottom friction block at its bottom, the lower threaded wire has a second top friction block at its top, the lower threaded wire has a second bottom friction block at its bottom, the valve stem is fitted with a grease output threaded end fixedly connected to its surface, the inner wall of the grease output threaded end is threaded with a grease connector, the inner wall of the grease connector is threaded with a grease gun, and the valve stem is fitted with a grease release port on its inner wall.

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