Ball valve with adjustable sealing performance and anti-falling ball valve seat

Abstract

The utility model relates to the technical field of valve sealing, and discloses a ball valve capable of adjusting sealing performance and preventing a ball valve seat from falling off, the ball valve comprises a valve body and a valve seat, the right side of the valve body and the right side of the valve seat are respectively provided with a plurality of installation grooves, and the inner walls of the installation grooves are respectively connected with a bolt positioning sleeve in a sliding mode. The inner walls of the multiple bolt positioning sleeves are in threaded connection with elastic bolts, the upper middle portions and the lower middle portions of the outer sides of the multiple bolt positioning sleeves are slidably connected with gaskets, the bottom ends of the outer sides of the multiple bolt positioning sleeves are in threaded connection with locking nuts, and a plurality of first clamping grooves are formed in the right side of the inner wall of the valve body. According to the ball valve seat, the spiral compression spring is used for supporting and fixing the clamping block in the two clamping grooves, the spring is used for buffering and protecting the connecting piece when the valve seat is impacted, the elastic bolt and the positioning sleeve are in threaded connection and are reinforced through the locking nut, and therefore the ball valve seat is high in pressure resistance and simple in connection, and damaged parts are convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of valve sealing technology, and in particular to a ball valve with an adjustable sealing anti-detachment ball valve seat. Background Technology

[0002] Pipeline transportation, as an important modern logistics method, mainly relies on pipelines made of specific materials to carry out the heavy responsibility of transporting oil, natural gas, and chemical raw materials. In pipeline transportation, valves are key components that control the flow of media and ensure safe and stable operation. Because pipeline transportation requires long-term uninterrupted operation, extremely high requirements are placed on the performance of valves. Ordinary valve seats are prone to sealing failure and seat detachment under complex working conditions, which can lead to media leakage, not only wasting resources but also causing safety accidents. To address this, ball valves with adjustable sealing and anti-detachment ball seats have been developed.

[0003] The adjustable sealing anti-detachment ball valve, with its adjustable sealing structure, can flexibly adjust the sealing force according to changes in the pressure and temperature of the medium, ensuring a good sealing effect and reducing the risk of leakage. At the same time, its unique anti-detachment design effectively enhances the connection stability between the valve seat and the valve body, resists external interference, and ensures that the valve seat will not fall off during long-term operation, thus providing a guarantee for the safe and reliable operation of the pipeline transportation system.

[0004] Although the anti-dislodgement structure of ball valves with adjustable sealing anti-dislodgement ball seats can prevent the valve seat from falling off, these anti-dislodgement structures can still suffer fatigue damage under long-term vibration, impact, or medium pressure fluctuations. The existing solution is to establish a regular maintenance system to conduct a comprehensive inspection and maintenance of the valve seat and to promptly identify and replace severely worn parts. However, regular maintenance and online monitoring require investment of manpower, material resources, and financial resources. Moreover, the monitoring equipment has problems with insufficient accuracy and reliability, making it difficult to accurately capture subtle changes and potential faults. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a ball valve with an adjustable sealing anti-drop ball valve seat, which aims to improve the problems of excessive manpower, material and financial consumption and insufficient accuracy of monitoring equipment in the existing technology's regular maintenance system.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a ball valve with an adjustable sealing anti-detachment ball seat, comprising a valve body and a valve seat. Multiple mounting grooves are provided on the right side of both the valve body and the right side of the valve seat. Bolt positioning sleeves are slidably connected to the inner walls of each of the mounting grooves. Elastic bolts are threadedly connected to the inner walls of each of the bolt positioning sleeves. Washers are slidably connected to the upper and lower outer parts of each of the bolt positioning sleeves. Locking nuts are threadedly connected to the bottom outer ends of each of the bolt positioning sleeves. The valve body... Multiple slot 1 are provided on the right side of the inner wall, and multiple slot 2 are provided on the right side of the outer side of the valve seat. A spiral compression spring is fixedly connected to the inner wall of each of the multiple slot 2, and a locking block is fixedly connected to the other end of each of the multiple spiral compression springs. Limiting plates are fixedly connected to the left and right sides of the outer side of the valve seat. Multiple blocking blocks are fixedly connected to the adjacent side of each of the two limiting plates, and sealing gaskets are fixedly connected to the adjacent side of each of the two limiting plates. A filtering mechanism is provided on the left side of the inner wall of the valve seat, which is used to filter impurities in the water flow.

[0007] As a further description of the above technical solution:

[0008] The filtration mechanism includes two fixed supports. The opposite sides of the two fixed supports are fixedly connected to the left side of the inner wall of the valve seat. The adjacent sides of the two fixed supports are fixedly connected to the same fixed ring. The inner wall of the fixed ring is rotatably connected to a transmission rod. A sliding groove is opened on the outer side of the transmission rod. A turbine is fixedly connected to the left end of the transmission rod. Two cleaning brushes are fixedly connected to the outer side of the transmission rod. A filter screen is fixedly connected to the left side of the inner wall of the valve seat. A rubber pad is fixedly connected to the front side of the inner wall of the valve seat. A micro vibrator is fixedly connected to the left side of the rubber pad.

[0009] As a further description of the above technical solution:

[0010] A fastening force sensor is fixedly connected to the top outer side of the multiple elastic bolts, and an alarm is fixedly connected to the top outer side of the valve body.

[0011] As a further description of the above technical solution:

[0012] A fixing plate is fixedly connected to the top of the outer side of the valve body, and a warning sign is fixedly connected to the top of the fixing plate.

[0013] As a further description of the above technical solution:

[0014] A rubber ring is fixedly connected to the outside of the filter screen, and the rubber ring has a ring-shaped design.

[0015] As a further description of the above technical solution:

[0016] Each of the multiple elastic bolts has a screw groove at its top, and the inner wall of each screw groove is frosted.

[0017] As a further description of the above technical solution:

[0018] A rubber damping sheet is fixedly connected to the inner wall of the valve body, and the inner wall of the rubber damping sheet is fixedly connected to the outer side of the valve seat.

[0019] As a further description of the above technical solution:

[0020] Two mounting plates are fixedly connected to the outer wall of the valve body, and the two mounting plates are symmetrically distributed relative to the valve seat.

[0021] This utility model has the following beneficial effects:

[0022] In this invention, the locking block is supported and fixed in two slots by a helical compression spring, so that when the valve seat is subjected to a large impact force, the compression force of the spring can be used to buffer it, avoiding damage to the connection between the valve seat and the valve body. The elastic bolt is threadedly connected to the bolt positioning sleeve and fixed with a lock nut, making the connection between the valve body and the valve seat more stable. The overall structure has strong compressive strength, simple connection, and can be quickly replaced when damaged.

[0023] In this invention, the impact force generated by the water flowing through the ball valve is converted into mechanical power by a turbine, and the mechanical power is transferred through a transmission rod, so that the two cleaning brushes clean both sides of the filter screen. The rotational connection between the fixed ring and the sliding groove restricts the movement of the transmission rod, avoiding an increase in friction between the filter screen and the cleaning brushes. At the same time, the micro vibrator can improve the cleaning efficiency of the filter screen and increase the service life of the ball valve. Attached Figure Description

[0024] Figure 1 This is a perspective view of the ball valve with an adjustable sealing anti-detachment ball valve seat proposed in this utility model.

[0025] Figure 2 This is a cross-sectional view of the valve body of the ball valve with an adjustable sealing anti-detachment ball valve seat proposed in this utility model.

[0026] Figure 3 This is a cross-sectional view of the valve seat of the ball valve with an adjustable sealing anti-detachment ball valve seat proposed in this utility model.

[0027] Figure 4 This is a split view of the locking block of the ball valve with an adjustable sealing anti-detachment ball valve seat proposed in this utility model;

[0028] Figure 5This is an exploded view of the bolt positioning sleeve of the ball valve with an adjustable sealing anti-detachment ball valve seat proposed in this utility model.

[0029] Figure 6 This is a schematic diagram of the filter mechanism of the ball valve with an adjustable sealing anti-detachment ball valve seat proposed in this utility model.

[0030] Legend:

[0031] 1. Valve body; 2. Valve seat; 3. Filtering mechanism; 301. Fixed bracket; 302. Fixed ring; 303. Transmission rod; 304. Sliding groove; 305. Turbine; 306. Cleaning brush; 307. Filter screen; 308. Rubber pad; 309. Miniature vibrator; 4. Mounting groove; 5. Bolt positioning sleeve; 6. Elastic bolt; 7. Washer; 8. Locking nut; 9. Slot 1; 10. Slot 2; 11. Helical compression spring; 12. Locking block; 13. Limiting plate; 14. Barrier block; 15. Sealing gasket; 16. Rubber ring; 17. Screw groove; 18. Fastening force sensor; 19. Alarm; 20. Rubber damping plate; 21. Fixing plate; 22. Warning sign; 23. Mounting plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 3 , Figure 4 and Figure 5This utility model provides an embodiment of a ball valve with an adjustable sealing anti-detachment ball seat, comprising a valve body 1 and a valve seat 2. Multiple mounting grooves 4 are provided on the right side of both the valve body 1 and the valve seat 2. These mounting grooves 4 provide space for bolt positioning sleeves 5. Bolt positioning sleeves 5 are slidably connected to the inner walls of each mounting groove 4. The bolt positioning sleeves 5 provide directional guidance for the bolts and protect them from damage during installation. Elastic bolts 6 are threadedly connected to the inner walls of each bolt positioning sleeve 5. 6 is used to connect the valve body 1 and the valve seat 2. Washers 7 are slidably connected to the upper and lower outer sides of multiple bolt positioning sleeves 5. Washers 7 are used to absorb vibration and impact energy, preventing loosening of the connection between the bolt positioning sleeves 5 and the elastic bolts 6. Locking nuts 8 are threaded to the bottom outer sides of multiple bolt positioning sleeves 5, and the locking nuts 8 can be inserted into the mounting groove 4 inside the valve seat 2, preventing any impact on the operation of the ball valve. Locking nuts 8 are used to fix the elastic bolts 6. Multiple retaining grooves 9 are provided on the right side of the inner wall of the valve body 1. Multiple slots 9 provide movement and buffering space for the locking block 12. Multiple slots 10 are provided on the outer right end of the valve seat 2. These slots 10 house helical compression springs 11, and each slot 10 has a fixedly connected helical compression spring 11 to its inner wall. The helical compression springs 11 buffer the valve seat 2 from impact forces. Locking blocks 12 are fixedly connected to the other ends of each helical compression spring 11. These locking blocks 12 secure the valve body 1 and the valve seat 2. The valve seat 2 has fixedly connected locking blocks 12 to its outer left and right ends. A limiting plate 13 is connected to the valve seat 2. The limiting plate 13 can restrict the movement of the valve seat 2. Multiple blocking blocks 14 are fixedly connected to the adjacent sides of the two limiting plates 13. The multiple blocking blocks 14 can prevent the blocking block 12 from moving left and right, and can also provide guidance for the installation of the limiting plate 13. A sealing gasket 15 is fixedly connected to the adjacent sides of the two limiting plates 13. The sealing gasket 15 is used to increase the tightness of the connection between the valve body 1 and the valve seat 2. A filter mechanism 3 is provided on the left side of the inner wall of the valve seat 2. The filter mechanism 3 is used to filter impurities in the water flow.

[0034] Specifically, during installation, firstly, a spiral compression spring 11 is fixed to the inner wall of the slot 10 on the right side of the valve seat 2. Then, the locking block 12 is connected to the other end of the spiral compression spring 11. The valve seat 2 is slid into the valve body 1, ensuring that the locking block 12 accurately falls into the slot 9 of the valve body 1. On the side adjacent to the two limiting plates 13, multiple blocking blocks 14 are installed. The blocking blocks 14 can restrict the left and right movement of the locking block 12 and provide guidance for the precise installation of the limiting plates 13. At the same time, sealing gaskets 15 are installed on the side adjacent to the two limiting plates 13 to enhance the tightness and sealing of the connection. On the left and right ends of the valve seat 2, the limiting plates 13 are fixedly connected to the threaded grooves with screws. Multiple bolt positioning sleeves 5 are gently slid into the corresponding mounting grooves 4 on the right side of the valve body 1 and the right side of the valve seat 2. Then, each elastic bolt 6 is passed through a washer 7. Afterward, according to the thread direction, the elastic bolts 6 are screwed into the inner wall of the bolt positioning sleeves 5 one by one, so that the elastic bolts 6 pass through the mounting grooves 4, realizing the connection between the valve body 1 and the valve seat 2. For the initial connection and positioning of the valve seat 2, washers 7 are slidably installed under each bolt positioning sleeve 5. This allows the washers 7 to effectively absorb the vibration and impact energy generated during valve operation, ensuring the stability of the connection between the bolt positioning sleeve 5 and the elastic bolt 6 and preventing loosening. At the bottom outer side of each bolt positioning sleeve 5, a locking nut 8 is screwed in according to the thread direction of the elastic bolt 6, ensuring that the locking nut 8 can be fully inserted into the mounting groove 4 inside the valve seat 2 to avoid affecting the normal operation of the ball valve. By tightening the elastic bolt 6, the locking nut 8 is firmly fixed, completing the final connection between the valve body 1 and the valve seat 2. When water flows through the ball valve seat, if the valve seat 2 is subjected to external impact, the spiral compression spring 11 is quickly compressed and deformed, effectively relieving the impact force with its own elasticity and reducing damage to the connection between the valve seat 2 and the valve body 1. At the same time, the cooperation between the locking block 12 and the locking groove 19 and locking groove 20 plays a limiting role, preventing excessive displacement of the valve seat 2 and ensuring the structural stability of the valve.

[0035] Reference Figure 2 and Figure 6The filter mechanism 3 includes two fixed supports 301, which are used to fix the ring 302. The opposite sides of the two fixed supports 301 are fixedly connected to the left side of the inner wall of the valve seat 2. The adjacent sides of the two fixed supports 301 are fixedly connected to the same fixing ring 302. The fixing ring 302 is slidably connected to the sliding groove 304, preventing the transmission rod 303 from moving within the fixing ring 302 when the turbine 305 rotates. The transmission rod 303 is rotatably connected to the inner wall of the fixing ring 302. The transmission rod 303 transmits the force generated when the turbine 305 rotates. The outer side of the transmission rod 303 has a sliding groove 304. The left end of the transmission rod 303 is fixedly connected to the turbine 305, which can filter... The impact force of the water flow is converted into mechanical force. Two cleaning brushes 306 are fixedly connected to the outside of the transmission rod 303. The bristles of the two cleaning brushes 306 face the left and right sides of the filter screen 307 respectively, so that the filter screen 307 is cleaned more thoroughly. The filter screen 307 is fixedly connected to the left side of the inner wall of the valve seat 2. The filter screen 307 can prevent impurities in the water from corroding the ball valve. A rubber pad 308 is fixedly connected to the front side of the inner wall of the valve seat 2. The rubber pad 308 can prevent the micro vibrator 309 from affecting the valve seat 2 and connects the micro vibrator 309 and the valve seat 2. The micro vibrator 309 is fixedly connected to the left side of the rubber pad 308. The micro vibrator 309 can enhance the cleaning effect of the filter screen 307.

[0036] Specifically, the fixing ring 302 is installed on the adjacent side of the two fixing brackets 301 to ensure a stable installation. The transmission rod 303 is inserted into the inner wall of the fixing ring 302. At the same time, the sliding groove 304 on the outer side of the transmission rod 303 and the fixing ring 302 form a sliding connection to prevent the transmission rod 303 from moving within the fixing ring 302 when the turbine 305 rotates. The turbine 305 is fixed to the left end of the transmission rod 303 to ensure a tight connection. The right end of the transmission rod 303 passes through the filter screen 307, and two cleaning brushes 306 are fixed to the right side of the transmission rod 303, with the bristles of the two cleaning brushes 306 facing the left and right sides of the filter screen 307 respectively, ensuring that the cleaning brushes 306 can effectively clean the filter screen 307 when the transmission rod 303 rotates. Then, the rubber pad 308 is installed on the front side of the inner wall of the valve seat 2 to ensure a firm installation. The micro vibrator 309 is fixed to the left side of the rubber pad 308. The rubber pad 308 can prevent the micro vibration from moving. The micro-vibration generated by the actuator 309 affects the valve seat 2, and also ensures that the micro-vibrator 309 is in close contact with the filter screen 307. The filter screen 307 is fixed to the left side of the inner wall of the valve seat 2, ensuring that the filter screen 307 can effectively filter impurities in the water. Finally, two fixed brackets 301 are respectively installed on the left side of the inner wall of the valve seat 2. When water flows through the valve seat 2, the filter screen 307 intercepts impurities in the water, preventing impurities from corroding or damaging the ball valve. The water flow impacts the turbine 305, causing the turbine 305 to rotate, which in turn drives the transmission rod 303 to rotate within the fixed ring 302. The two cleaning brushes 306 rotate with the transmission rod 303, cleaning the left and right sides of the filter screen 307 and removing impurities attached to the filter screen 307. At the same time, the vibration generated by the micro-vibrator 309 is transmitted to the filter screen 307, further loosening the impurities attached to the filter screen 307, enhancing the cleaning effect of the cleaning brushes 306, and improving the filtration efficiency of the filter screen 307.

[0037] Reference Figure 1 , Figure 2 and Figure 3Multiple elastic bolts 6 are fixedly connected to the top outer side of a fastening force sensor 18, which can detect the tightness of the elastic bolts 6. An alarm 19 is fixedly connected to the top outer side of the valve body 1. When the data detected by the fastening force sensor 18 changes, the alarm 19 alerts the operator. A fixing plate 21 is fixedly connected to the top outer side of the valve body 1. The fixing plate 21 is used to connect the warning sign 22 and the valve body 1. The top of the fixing plate 21 is fixedly connected to the warning sign 22, which describes the precautions of the device to the user. A rubber ring 16 is fixedly connected to the outer side of the filter screen 307. The rubber ring 16 can increase the sealing effect of the filter screen 307 and prevent the filter screen 307 from being damaged by water flow. The rubber ring 16 is designed with a ring shape to prevent damage from excessive impact. The top of each of the multiple elastic bolts 6 is provided with a screw groove 17. The inner wall of the multiple screw grooves 17 is sanded. The screw grooves 17 can increase the ease of installation of the elastic bolts 6. A rubber damping plate 20 is fixedly connected to the inner wall of the valve body 1. The rubber damping plate 20 can absorb vibration energy when the pipeline vibrates, reduce the impact force of vibration on the valve seat 2, and reduce the probability of fatigue damage to the anti-detachment structure due to vibration. The inner wall of the rubber damping plate 20 is fixedly connected to the outer side of the valve seat 2. Two mounting plates 23 are fixedly connected to the outer wall of the valve body 1. The two mounting plates 23 are symmetrically distributed relative to the valve seat 2. The two mounting plates 23 make the device easy to install.

[0038] Specifically, the warning sign 22 is fixed to the top of the fixing plate 21. During installation, ensure that the warning sign 22 is secure and that the text is oriented in a way that is easy for the user to see. The warning sign 22 clearly describes the precautions of the device to the user. Two mounting plates 23 are fixedly connected to the outer wall of the valve body 1, and the two mounting plates 23 are symmetrically distributed relative to the valve seat 2, which facilitates the overall installation and fixation of the device. During normal operation of the device, the fastening force sensor 18 detects the tightness of the elastic bolt 6 in real time. When the fastening force of the elastic bolt 6 changes due to vibration, temperature change, or long-term use, the fastening force sensor 18 transmits the detected data change to the alarm 1. 9. Alarm 19 immediately sounds an alarm, reminding staff that the tightening force of the elastic bolt 6 is abnormal and needs to be checked and handled. When the pipeline vibrates, the rubber damping sheet 20 absorbs the energy generated by the vibration, reduces the impact force of the vibration on the valve seat 2, protects the valve seat 2 and the anti-detachment structure, and extends the service life of the device. When water flows through the valve seat 2, the filter screen 307 filters the water flow and intercepts impurities in the water. The rubber ring 16 enhances the sealing effect of the connection between the outer side of the filter screen 307 and the valve seat 2, preventing impurities from bypassing the filter screen 307 and entering the valve. At the same time, it protects the filter screen 307 from being damaged by excessive water flow impact.

[0039] Working principle: The elastic bolt 6 is screwed into the bolt positioning sleeve 5 and passes through the mounting groove 4, achieving the initial connection and positioning of the valve body 1 and the valve seat 2. The locking nut 8 is screwed into the bottom outer side of the bolt positioning sleeve 5 and cooperates with the elastic bolt 6. Tightening the elastic bolt 6 further tightens the locking nut 8, making the valve body 1 and the valve seat 2 firmly connected. Washers 7 are installed above and below the bolt positioning sleeve 5 respectively, which can absorb vibration and impact energy, prevent the bolt connection from loosening, and enhance the stability and reliability of the connection. When the valve seat 2 slides into the valve body 1, the locking block 12 falls into the locking groove 9 of the valve body 1. The elastic force of the helical compression spring 11 makes the locking block 12 cooperate with the locking groove 9 and the locking groove 10, so that when the valve seat 2 is subjected to impact force, the valve body 1 can be locked. The compression deformation of the spring absorbs energy, buffers the impact force, reduces damage to the connection parts, prevents excessive displacement of the valve seat 2, and ensures the structural stability of the valve. The blocking block 14 restricts the left and right movement of the locking block 12, further enhancing the fixing effect of the valve seat 2. At the same time, it provides guidance for the precise installation of the limiting plate 13. The cooperation between the limiting plate 13 and the blocking block 14 makes the position of the valve seat 2 in the valve body 1 more stable, improving the reliability of the overall structure. The sealing gasket 15 is installed on the adjacent side of the two limiting plates 13. After the valve body 1 and the valve seat 2 are connected and fixed, the sealing gasket 15 is squeezed, filling the gap of the connection part, increasing the tightness of the connection between the valve body 1 and the valve seat 2, and effectively preventing the leakage of fluid medium.

[0040] Furthermore, when water flows through valve seat 2, the filter screen 307 first performs preliminary filtration to intercept impurities. Simultaneously, the impact force of the water flow acts on turbine 305, causing turbine 305 to rotate, which in turn drives transmission rod 303 to rotate. Cleaning brush 306 cleans filter screen 307 as transmission rod 303 rotates. During the cleaning process, the vibration generated by micro vibrator 309 further loosens the impurities on filter screen 307, making it easier for cleaning brush 306 to remove impurities more effectively. Through the filtration of filter screen 307, the power transmission of turbine 305 and transmission rod 303, the physical cleaning of cleaning brush 306, and the auxiliary cleaning of micro vibrator 309, the filtration of water flow and the self-cleaning function of filter screen 307 are achieved, ensuring the normal operation of ball valve and the efficient operation of filter mechanism 3.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Ball valve with a drop-proof ball seat with adjustable tightness, comprising a valve body (1) and a valve seat (2), characterized in that: The right side of the valve body (1) and the right side of the valve seat (2) are provided with a plurality of mounting grooves (4), the inner walls of the plurality of mounting grooves (4) are slidably connected with bolt positioning sleeves (5), the inner walls of the plurality of bolt positioning sleeves (5) are threadedly connected with elastic bolts (6), the outer middle upper and middle lower parts of the plurality of bolt positioning sleeves (5) are slidably connected with washers (7), the outer bottom ends of the plurality of bolt positioning sleeves (5) are threadedly connected with lock nuts (8), the right side of the inner wall of the valve body (1) is provided with a plurality of clamping grooves one (9), the right end of the outer side of the valve seat (2) is provided with a plurality of clamping grooves two (10), the inner walls of the plurality of clamping grooves two (10) are fixedly connected with helical compression springs (11), the other ends of the plurality of helical compression springs (11) are fixedly connected with clamping blocks (12), the outer sides of the left and right ends of the valve seat (2) are fixedly connected with limiting sheets (13), the adjacent sides of the two limiting sheets (13) are fixedly connected with a plurality of blocking blocks (14), the adjacent sides of the two limiting sheets (13) are fixedly connected with sealing gaskets (15), and the inner wall left side of the valve seat (2) is provided with a filtering mechanism (3), which is used to filter impurities in the water flow.

2. The ball valve with a seat for fall-prevention balls with adjustable tightness according to claim 1, characterized in that: The filtering mechanism (3) comprises two fixed supports (301), the distantly apart sides of the two fixed supports (301) are fixedly connected to the inner wall left side of the valve seat (2), the adjacent sides of the two fixed supports (301) are fixedly connected with the same fixed ring (302), the inner wall of the fixed ring (302) is rotatably connected with a transmission rod (303), the outer side of the transmission rod (303) is provided with a sliding groove (304), the left end of the transmission rod (303) is fixedly connected with a turbine (305), the outer side of the transmission rod (303) is fixedly connected with two cleaning brushes (306), the inner wall left side of the valve seat (2) is fixedly connected with a filter screen (307), the inner wall front side of the valve seat (2) is fixedly connected with a rubber pad (308), and the left side of the rubber pad (308) is fixedly connected with a micro vibrator (309).

3. The ball valve with a seat for fall-prevention balls with adjustable tightness according to claim 1, characterized in that: The outer top parts of the plurality of elastic bolts (6) are fixedly connected with fastening force sensors (18), and the outer top part of the valve body (1) is fixedly connected with an alarm (19).

4. The drop-in ball valve seat with adjustable tightness according to claim 1, characterized in that: The outer top part of the valve body (1) is fixedly connected with a fixed plate (21), and the top of the fixed plate (21) is fixedly connected with a warning sign (22).

5. The drop-in ball valve seat with adjustable tightness according to claim 2, characterized in that: The outer side of the filter screen (307) is fixedly connected with a rubber ring (16), and the outer shape of the rubber ring (16) adopts an annular design.

6. The drop-in ball valve seat with adjustable tightness according to claim 1, characterized in that: The top ends of the plurality of elastic bolts (6) are provided with screw grooves (17), and the inner walls of the plurality of screw grooves (17) are subjected to frosted treatment.

7. The drop-in ball valve seat with adjustable tightness according to claim 1, characterized in that: The inner wall of the valve body (1) is fixedly connected with a rubber damping sheet (20), and the inner wall of the rubber damping sheet (20) is fixedly connected with the outer side of the valve seat (2).

8. The drop-in ball valve seat with adjustable tightness according to claim 1, characterized in that: The outer wall of the valve body (1) is fixedly connected with two mounting plates (23), and the two mounting plates (23) are symmetrically distributed relative to the valve seat (2).

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