A type of anti-blocking valve for pipelines

Abstract

This invention relates to the field of valve technology and provides an anti-blocking valve for pipelines, including a ball valve seat and a ball valve rotatably disposed inside the ball valve seat; a conveying channel is opened inside the ball valve; a movable tube is slidably disposed inside the conveying channel; slide rods that slide and engage with a sliding groove are symmetrically fixed on the side of the curved panel; a return spring is fixedly connected between the end of the slide rod and the sliding groove; a receiving cavity communicating with the conveying channel is opened inside the ball valve; a clearing part adapted to the movable tube is slidably disposed inside the receiving cavity; a driving part for driving the clearing part to rise and fall is provided inside the ball valve; the device releases the restriction on the movable tube, and under the elastic force of the return spring, drives the movable tube along with the blockage to slide out from inside the conveying channel; the driving part drives the clearing part to slide down to the end of the movable tube, pulling the movable tube back into the conveying channel; the blockage inside the movable tube is squeezed out by the clearing ball, completing the rapid clearing of the blockage inside the ball valve.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and more specifically, to an anti-blocking valve for pipelines. Background Technology

[0002] A ball valve typically uses a ball with a circular passage as its opening and closing element. The ball rotates with the valve body to achieve the opening and closing action. The opening and closing element of a ball valve is a ball with a through hole that rotates about an axis perpendicular to the passage, thereby achieving the purpose of opening and closing the passage. Traditional ball valves usually consist of a ball with a delivery passage mounted on a valve seat, and opening and closing are achieved by the rotation of the ball.

[0003] In water conservancy projects, ball valves are commonly used. However, due to impurities in the water, such as silt and algae, a large amount of impurities accumulate inside the ball valve's delivery channel over time, causing blockages and preventing the valve from operating normally. This hinders the progress of the water conservancy project. Furthermore, because the ball valve is located inside the valve seat, it is impossible to monitor the valve's internal condition in a timely manner, making it difficult to clean blockages from the delivery channel promptly. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an anti-blocking valve for pipelines. When it is necessary to clean the inside of the ball valve's delivery channel, by releasing the restriction on the movable pipe, under the elastic force of the return spring, the movable pipe, along with the blockage, slides out of the delivery channel. The drive unit drives the unblocking unit to slide down to the end of the movable pipe, opens the sealing cover, and pulls the movable pipe back into the delivery channel. During this process, the blockage inside the movable pipe is squeezed out by the unblocking ball and discharged through the drain pipe, thus completing the rapid cleaning of the blockage inside the ball valve and ensuring the normal operation of water conservancy projects.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pipeline anti-blocking valve includes a ball valve seat and a ball valve rotatably disposed inside the ball valve seat; the ball valve has a delivery channel inside; a movable tube is slidably disposed inside the delivery channel; symmetrical grooves parallel to the delivery channel are formed on the circumferential side of the ball valve; a curved plate adapted to the circumferential side of the ball valve is fixed to one end of the movable tube; slide rods slidably engaged with the grooves are symmetrically fixed to the side of the curved plate; a return spring is fixedly connected between the end of the slide rod and the groove; a receiving cavity communicating with the delivery channel is formed inside the ball valve; a sliding device is slidably disposed inside the receiving cavity. The device includes a dredging section adapted to the movable tube; the dredging section includes a piston plate that slides into the receiving cavity; a sliding rod is fixed to the bottom of the piston plate; a dredging ball adapted to the inner wall of the movable tube is fixed to the bottom end of the sliding rod; an avoidance groove is provided on the periphery of the movable tube to slide into the sliding rod; a baffle rail is fixed to the inner wall of the conveying channel to engage with the avoidance groove; a drive unit for driving the dredging section to rise and fall is provided inside the ball valve; an L-shaped plate is fixed to the periphery of the ball valve seat; an alarm and a controller are installed on the top of the L-shaped plate; and a flow sensor is installed inside the ball valve seat.

[0007] The invention is further configured such that: an input pipe and an output pipe are symmetrically connected on the periphery of the ball valve seat; the flow sensor is fixedly installed inside the output pipe; a drain pipe is connected on the periphery of the output pipe; a sealing cap is screwed to the bottom end of the drain pipe; a transparent observation window is provided on the periphery of the output pipe; a sealing groove is opened at the end of the conveying channel; an annular groove is opened on the bottom surface of the sealing groove; a sealing plate that is inserted and matched with the sealing groove is fixed on the inner wall of the curved panel; and an elastic rubber sleeve sleeved on the movable pipe is connected between the sealing plate and the annular groove.

[0008] The invention is further configured as follows: a shaft hole is provided inside the ball valve seat; a plurality of coaxial first sealing grooves are uniformly provided on the inner wall of the shaft hole, and a plurality of coaxial first sealing rings are uniformly fixed on its top; a valve stem that rotatably engages with the shaft hole is fixed on the top of the ball valve; a plurality of second sealing rings that are adapted to the corresponding first sealing grooves are uniformly fixed on the outer circumferential side of the valve stem; a sealing cover that is adapted to the outer wall of the ball valve seat is fixed on the circumferential side of the valve stem; a plurality of second sealing grooves that are adapted to the corresponding first sealing rings are uniformly provided on the inner wall of the sealing cover; a servo motor is fixedly installed on the top of the L-shaped plate; the output end of the servo motor is fixedly connected to the end of the valve stem.

[0009] The invention is further configured such that: a threading groove communicating with a sliding groove is provided inside the valve stem; a connecting rope is fixedly connected to the end of the sliding rod; the other end of the connecting rope passes through the threading groove and is connected to a ball head; a lead screw is rotatably provided on the circumferential side of the valve stem, and a guide rod is fixed on its circumferential side; a sliding plate that rotates with the thread of the lead screw is slidably provided on the guide rod; and a ball seat that matches the ball head is fixed at the top of the sliding plate.

[0010] The present invention is further configured such that: the driving part includes a first rotating cavity opened inside the ball valve and a second rotating cavity opened inside the valve stem and communicating with the first rotating cavity; a rotating rod is rotatably arranged inside the second rotating cavity; a driving gear is fixed at the bottom end of the rotating rod and rotatably arranged inside the first rotating cavity; a first screw is rotatably arranged at the top of the first rotating cavity, and a vertical rod is fixed at the top of the first screw; a driven gear that meshes with the driving gear is fixed on the first screw.

[0011] The present invention is further configured such that: a first threaded groove and a sliding groove are sequentially formed on the top of the piston plate; the first screw is threadedly rotated with the first threaded groove; and the vertical rod is slidably rotated with the sliding groove.

[0012] The invention is further configured such that: the driving part includes a piston chamber and a connecting chamber sequentially formed inside the ball valve; both the piston chamber and the connecting chamber are connected to the receiving chamber; a second threaded groove communicating with the piston chamber is formed inside the valve stem; a piston block is slidably arranged inside the piston chamber; and a second screw is rotatably arranged on the top of the piston block, which is threadedly engaged with the second threaded groove.

[0013] The invention is further configured such that: a limiting rod is fixed at the top of the connecting cavity; a limiting groove is provided at the top of the piston plate to slide with the limiting rod; and a tension spring sleeved on the limiting rod is fixedly connected between the piston plate and the connecting cavity.

[0014] The invention is further configured such that: the driving part includes an installation cavity formed inside the ball valve; the installation cavity communicates with the receiving cavity; a third threaded groove is formed inside the valve stem; a Z-shaped tube is provided between the third threaded groove and the installation cavity; a third screw is screwed into the third threaded groove; guide posts are symmetrically fixed at the top of the installation cavity; positioning grooves that slide with the guide posts are symmetrically formed at the top of the piston plate; a connecting spring sleeved on the guide post is fixedly connected between the piston plate and the top of the installation cavity; and a pull rope passing through the Z-shaped tube is fixedly connected between the piston plate and the third screw.

[0015] The advantages of this invention are:

[0016] 1. When the flow sensor inside the output pipe detects that the water flow is lower than the warning value, the present invention transmits the signal to the controller, which then controls the alarm to sound an alarm and provide timely reminders. At the same time, the water flow and blockage in the output pipe can be observed through the transparent observation window, which facilitates the clearing of blockages inside the ball valve delivery channel.

[0017] 2. When the ball valve's conveying channel needs to be cleaned, the present invention releases the restriction on the movable tube. Under the elastic force of the return spring, the movable tube, along with the blockage, slides out of the conveying channel. The drive unit drives the unblocking unit to slide down to the end of the movable tube, opens the sealing cover, and pulls the movable tube back into the conveying channel. During this process, the blockage inside the movable tube is squeezed out by the unblocking ball and discharged through the drain pipe, thus completing the rapid cleaning of the blockage inside the ball valve and ensuring the normal operation of the water conservancy project. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an anti-blocking valve for pipelines according to the present invention.

[0019] Figure 2 For the present invention Figure 1 Enlarged view of region A.

[0020] Figure 3 This is a schematic diagram of the ball valve seat of the present invention.

[0021] Figure 4 This is a schematic diagram of the ball valve of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the active tube of the present invention.

[0023] Figure 6 This is a schematic diagram of the active tube of the present invention from another angle.

[0024] Figure 7 This is a schematic diagram of the structure under the conveying state in Embodiment 2 of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure under the unblocking state in Embodiment 2 of the present invention.

[0026] Figure 9 For the present invention Figure 8 Enlarged view of region C.

[0027] Figure 10 This is a schematic diagram of the drive unit in Embodiment 2 of the present invention.

[0028] Figure 11 For the present invention Figure 10 Enlarged view of region B.

[0029] Figure 12 This is a schematic diagram of the unblocking section in Embodiment 2 of the present invention.

[0030] Figure 13 This is a schematic diagram of the structure under the conveying state in Embodiment 3 of the present invention.

[0031] Figure 14This is a schematic diagram of the structure under the unblocking state in Embodiment 3 of the present invention.

[0032] Figure 15 This is a schematic diagram of the drive unit in Embodiment 3 of the present invention.

[0033] Figure 16 This is a schematic diagram of the unblocking section in Embodiment 3 of the present invention.

[0034] Figure 17 This is a schematic diagram of the structure in the conveying state of Embodiment 4 of the present invention.

[0035] Figure 18 This is a schematic diagram of the structure under the unblocking state in Embodiment 4 of the present invention.

[0036] Figure 19 This is a schematic diagram of the drive unit in Embodiment 4 of the present invention.

[0037] Figure 20 This is a schematic diagram of the unblocking section in Embodiment 4 of the present invention.

[0038] In the diagram: 1. Ball valve seat; 2. Ball valve; 3. Conveying channel; 4. Movable pipe; 5. Slide groove; 6. Curved panel; 7. Slide rod; 8. Return spring; 9. Receiving cavity; 10. Unblocking section; 11. Piston plate; 12. Unblocking ball; 13. Clearance groove; 14. L-shaped plate; 15. Controller; 16. Input pipe; 17. Output pipe; 18. Drain pipe; 19. Sealing cover; 20. Transparent observation window; 21. Shaft hole; 22. First sealing groove; 23. First sealing ring; 24. Valve stem; 25. Second sealing ring; 26. Sealing cover; 27. Second sealing groove; 28. Servo motor; 29. ​​Threading groove; 30. Connecting rope; 31. Ball head; 32. Lead screw; 33. Guide rod; 34. Slide plate 35. Ball seat; 36. First rotating cavity; 37. Second rotating cavity; 38. Rotating rod; 39. Drive gear; 40. First screw; 41. Vertical rod; 42. Driven gear; 43. First threaded groove; 44. Sliding groove; 45. Piston cavity; 46. Connecting cavity; 47. Second threaded groove; 48. Second screw; 49. Limiting rod; 50. Limiting groove; 51. Tension spring; 52. Mounting cavity; 53. Third threaded groove; 54. Z-shaped tube; 55. Third screw; 56. Guide post; 57. Positioning groove; 58. Connecting spring; 59. Pull rope; 60. Sealing groove; 61. Ring groove; 62. Sealing plate; 63. Elastic rubber sleeve; 64. Sliding rod; 65. Piston block; 66. Stop rail. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0041] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0042] Example 1

[0043] Please see Figure 1-20 The present invention provides the following technical solutions:

[0044] A pipeline anti-blocking valve specifically includes a ball valve seat 1 and a ball valve 2 rotatably disposed inside the ball valve seat 1; the ball valve 2 has a delivery channel 3 inside; a movable tube 4 is slidably disposed inside the delivery channel 3; symmetrical grooves 5 are formed on the periphery of the ball valve 2, parallel to the delivery channel 3; a curved plate 6 adapted to the periphery of the ball valve 2 is fixed to one end of the movable tube 4; slide rods 7 slidably fitted to the grooves 5 are symmetrically fixed on the side of the curved plate 6; a return spring 8 is fixedly connected between the end of the slide rod 7 and the groove 5; a receiving cavity 9 communicating with the delivery channel 3 is formed inside the ball valve 2; a sliding tube 4 is slidably disposed inside the receiving cavity 9. A 4-phase compatible unblocking section 10; the unblocking section 10 includes a piston plate 11 that slides with the receiving cavity 9; a sliding rod 64 is fixed to the bottom of the piston plate 11; a unblocking ball 12 that fits with the inner wall of the movable tube 4 is fixed to the bottom end of the sliding rod 64; a clearance groove 13 that slides with the sliding rod 64 is opened on the periphery of the movable tube 4; a baffle rail 66 that inserts into the clearance groove 13 is fixed to the inner wall of the conveying channel 3; a drive unit for driving the unblocking section 10 to rise and fall is provided inside the ball valve 2; an L-shaped plate 14 is fixed to the periphery of the ball valve seat 1; an alarm and a controller 15 are installed on the top of the L-shaped plate 14; a flow sensor is installed inside the ball valve seat 1.

[0045] The ball valve seat 1 has an input pipe 16 and an output pipe 17 symmetrically connected on its side. The flow sensor is fixedly installed inside the output pipe 17. The output pipe 17 has a drain pipe 18 connected on its side. The bottom of the drain pipe 18 is screwed with a sealing cap 19. The output pipe 17 has a transparent observation window 20 on its side. The end of the conveying channel 3 has a sealing groove 60. The bottom surface of the sealing groove 60 has an annular groove 61. The inner wall of the curved panel 6 has a sealing plate 62 that is inserted into and fits with the sealing groove 60. An elastic rubber sleeve 63 is sleeved on the movable pipe 4 between the sealing plate 62 and the annular groove 61.

[0046] The elastic rubber sleeve 63 protects the clearance groove 13 and prevents blockages inside the output pipe 17 from entering the movable pipe 4; an annular baffle is provided on the inner wall of the output pipe 17 near its end to block the movable pipe 4.

[0047] The ball valve seat 1 has a shaft hole 21 inside; the inner wall of the shaft hole 21 has several coaxial first sealing grooves 22 evenly distributed, and several coaxial first sealing rings 23 are evenly fixed on its top; the top of the ball valve 2 is fixed with a valve stem 24 that rotates with the shaft hole 21; several second sealing rings 25 that are adapted to the corresponding first sealing grooves 22 are evenly fixed on the outer periphery of the valve stem 24; a sealing cover 26 that is adapted to the outer wall of the ball valve seat 1 is fixed on the periphery of the valve stem 24; several second sealing grooves 27 that are adapted to the corresponding first sealing rings 23 are evenly distributed on the inner wall of the sealing cover 26; a servo motor 28 is fixedly installed in the top of the L-shaped plate 14; the output end of the servo motor 28 is fixedly connected to the end of the valve stem 24.

[0048] The rotational engagement between the first sealing groove 22 and the second sealing ring 25, and between the first sealing ring 23 and the second sealing groove 27, improves the sealing performance of the connection between the ball valve 2 and the ball valve seat 1.

[0049] The valve stem 24 has a wire groove 29 inside that communicates with the slide groove 5; a connecting rope 30 is fixedly connected to the end of the slide rod 7; the other end of the connecting rope 30 passes through the wire groove 29 and is connected to a ball head 31; a lead screw 32 is rotatably provided on the circumference of the valve stem 24, and a guide rod 33 is fixed on its circumference; a sliding plate 34 is slidably provided on the guide rod 33 and is threadedly engaged with the lead screw 32; a ball seat 35 that is adapted to engage with the ball head 31 is fixed at the top of the sliding plate 34.

[0050] Working principle of this embodiment:

[0051] In the initial state, under the elastic force of the return spring 8, the movable tube 4 slides out of the conveying channel 3, the elastic rubber sleeve 63 is stretched, the unblocking ball 12 is stored inside the storage cavity 9, and the connecting rope 30 is in a slack state.

[0052] Rotating the lead screw 32 causes the slide plate 34 to slide along the guide rod 33 away from the valve stem 24, which in turn causes the connecting rope 30 to pull the slide rod 7, thereby causing the movable tube 4 to slide and be stored inside the conveying channel 3. The return spring 8 is compressed until the sealing plate 62 is inserted into the sealing groove 60. The curved plate 6 fits tightly onto the ball valve 2, and the baffle 66 is inserted into the clearance groove 13, completing the closure of the clearance groove 13 on the movable tube 4. In this state, it can be used for normal conveying. Water flows from the input pipe 16 through the movable tube 4 and is discharged from the output pipe 17.

[0053] The water flow inside the output pipe 17 can be observed through the transparent observation window 20, and it can be observed whether there are any blockages inside the output pipe 17. This allows for timely judgment of whether there is a major blockage, facilitating subsequent quick cleaning.

[0054] When the flow sensor inside the output pipe 17 (located near the end of the output pipe 17) detects that the water flow rate inside the output pipe 17 is lower than the set warning value, the flow sensor transmits a signal to the controller 15, and the controller 15 activates the alarm to alert the staff.

[0055] The operator rotates the screw 32 to drive the slide plate 34 to slide along the guide rod 33 towards the valve stem 24, so that the connecting rope 30 changes from a taut state to a slack state. Under the elastic reset force of the reset spring 8, the movable tube 4, together with the blockage inside it, slides out of the ball valve 2 along the conveying channel 3 until the curved panel 6 abuts against the annular baffle, and the elastic rubber sleeve 63 is stretched.

[0056] The drive unit controls the unblocking part 10 to slide down along the receiving cavity 9 until the unblocking ball 12 slides down to near the end of the movable tube 4. The sealing cover 19 is opened, and the screw 32 is rotated to drive the slide plate 34 to slide along the guide rod 33 in a direction away from the valve stem 24. This drives the connecting rope 30 to pull the slide rod 7, thereby causing the movable tube 4 to slide and be received into the conveying channel 3. During this process, the unblocking ball 12 squeezes the blockage inside the movable tube 4 out of the movable tube 4 and discharges it through the drain pipe 18.

[0057] Again, control the movable pipe 4 to slide out of the ball valve 2 along the conveying channel 3, and control the unblocking part 10 to slide up along the receiving cavity 9 and be stored inside the receiving cavity 9 through the drive unit. Then, control the movable pipe 4 to be stored inside the conveying channel 3, and the water flow will flush the movable pipe 4 and the inside of the output pipe 17. Most of the blockage will be flushed away by the water flow through the drain pipe 18, completing the cleaning of the blockage inside the movable pipe 4 and ensuring the normal operation of the water conservancy project.

[0058] Example 2

[0059] Please see Figure 7-12 This second embodiment is an improvement on the first embodiment as follows: Specifically, the driving unit includes a first rotating cavity 36 opened inside the ball valve 2 and a second rotating cavity 37 opened inside the valve stem 24 and communicating with the first rotating cavity 36; a rotating rod 38 is rotatably arranged inside the second rotating cavity 37; a driving gear 39 rotatably arranged inside the first rotating cavity 36 is fixed at the bottom end of the rotating rod 38; a first screw 40 is rotatably arranged at the top inside the first rotating cavity 36, and a vertical rod 41 is fixed at the top inside the first screw 40; a driven gear 42 that meshes with the driving gear 39 is fixed on the first screw 40.

[0060] The piston plate 11 has a first threaded groove 43 and a sliding groove 44 sequentially opened on its top; the first screw 40 is threadedly rotated with the first threaded groove 43; and the vertical rod 41 is slidably engaged with the sliding groove 44.

[0061] Working principle of this embodiment two:

[0062] By rotating the rotating rod 38, the drive gear 39 is driven to rotate, which in turn drives the driven gear 42 to rotate, thereby causing the unblocking part 10 to move up and down along the inner wall of the receiving cavity 9, thus cooperating with the movement of the movable tube 4 to achieve the unblocking work inside the movable tube 4.

[0063] Example 3

[0064] Please see Figure 13-16 This third embodiment is an improvement on the first embodiment. Specifically, the driving part includes a piston chamber 45 and a connecting chamber 46 sequentially opened inside the ball valve 2; both the piston chamber 45 and the connecting chamber 46 are connected to the receiving chamber 9; the valve stem 24 has a second threaded groove 47 that communicates with the piston chamber 45; a piston block 65 is slidably arranged inside the piston chamber 45; and a second screw 48 that is threadedly engaged with the second threaded groove 47 is rotatably arranged on the top of the piston block 65.

[0065] A limiting rod 49 is fixed at the top of the connecting cavity 46; a limiting groove 50 is provided at the top of the piston plate 11 to slide with the limiting rod 49; a tension spring 51 sleeved on the limiting rod 49 is fixedly connected between the piston plate 11 and the connecting cavity 46.

[0066] Working principle of this embodiment three:

[0067] By rotating the second screw 48, it rotates and descends inside the second threaded groove 47, thereby causing the piston block 65 to slide and descend along the inner wall of the piston cavity 45, thus forcing the air inside the piston cavity 45 into the receiving cavity 9, thereby causing the piston plate 11 to slide and descend along the inner wall of the receiving cavity 9, and the corresponding tension spring 51 is stretched; by rotating the second screw 48 in the opposite direction, it rotates and rises inside the second threaded groove 47, drawing the air inside the receiving cavity 9 back into the piston cavity 45. Under the elastic reset action of the tension spring 51, the piston plate 11 is pulled and slides and rises along the inner wall of the receiving cavity 9, thereby cooperating with the movement of the movable tube 4 to achieve the unblocking work inside the movable tube 4.

[0068] Example 4

[0069] Please see Figure 17-20This fourth embodiment is an improvement on the first embodiment. Specifically, the drive unit includes an installation cavity 52 inside the ball valve 2; the installation cavity 52 is connected to the receiving cavity 9; a third threaded groove 53 is provided inside the valve stem 24; a Z-shaped tube 54 is provided between the third threaded groove 53 and the installation cavity 52; a third screw 55 is screwed into the third threaded groove 53; guide posts 56 are symmetrically fixed at the top of the installation cavity 52; positioning grooves 57 that slide with the guide posts 56 are symmetrically provided at the top of the piston plate 11; a connecting spring 58 sleeved on the guide post 56 is fixedly connected between the piston plate 11 and the top of the installation cavity 52; a pull rope 59 passing through the Z-shaped tube 54 is fixedly connected between the piston plate 11 and the third screw 55.

[0070] Working principle of Example 4:

[0071] By rotating the third screw 55 to make it rotate and descend along the inside of the third threaded groove 53, the pull rope 59 changes from a straight state to a slack state. Under the elastic reset action of the connecting spring 58, the unblocking part 10 is driven to slide and descend along the receiving cavity 9. By rotating the third screw 55 in one direction to make it rotate and rise along the inside of the third threaded groove 53, the pull rope 59 pulls the unblocking part 10 to slide and rise along the inner wall of the receiving cavity 9, so that the connecting spring 58 is compressed, thereby cooperating with the movement of the movable tube 4 to realize the unblocking work inside the movable tube 4.

[0072] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0073] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0074] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0076] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A pipe anti-blocking valve, comprising a ball valve seat (1) and a ball valve (2) rotatably arranged inside the ball valve seat (1); a delivery channel (3) is arranged inside the ball valve (2); characterized in that: The conveying channel (3) is slidably provided with a movable tube (4); the ball valve (2) is symmetrically provided with a sliding groove (5) parallel to the conveying channel (3) on its circumferential side; a curved plate (6) adapted to the circumferential side of the ball valve (2) is fixed at one end of the movable tube (4); a sliding rod (7) slidably fixed on the side of the curved plate (6) and slidingly engaged with the sliding groove (5); a return spring (8) is fixedly connected between the end of the sliding rod (7) and the sliding groove (5); The ball valve (2) has a receiving cavity (9) that communicates with the conveying channel (3); the receiving cavity (9) has a slidable unblocking part (10) that is adapted to the movable tube (4); the unblocking part (10) includes a piston plate (11) that slides with the receiving cavity (9); a sliding rod (64) is fixed at the bottom of the piston plate (11); a unblocking ball (12) that is adapted to the inner wall of the movable tube (4) is fixed at the bottom end of the sliding rod (64); a clearance groove (13) that slides with the sliding rod (64) is provided on the periphery of the movable tube (4); a baffle rail (66) that is inserted into the clearance groove (13) is fixed on the inner wall of the conveying channel (3). The ball valve (2) is provided with a drive unit for driving the unblocking part (10) to rise and fall; an L-shaped plate (14) is fixed on the periphery of the ball valve seat (1); an alarm and a controller (15) are installed on the top of the L-shaped plate (14); a flow sensor is installed inside the ball valve seat (1); The ball valve seat (1) is symmetrically connected to an input pipe (16) and an output pipe (17) on its periphery; the flow sensor is fixedly installed inside the output pipe (17); a drain pipe (18) is connected to the periphery of the output pipe (17); a sealing cap (19) is screwed to the bottom of the drain pipe (18); a transparent observation window (20) is provided on the periphery of the output pipe (17); a sealing groove (60) is opened at the end of the conveying channel (3); an annular groove (61) is opened on the bottom surface of the sealing groove (60); a sealing plate (62) is fixed to the inner wall of the curved plate (6) and is inserted into the sealing groove (60); an elastic rubber sleeve (63) is sleeved on the movable pipe (4) between the sealing plate (62) and the annular groove (61). The ball valve seat (1) has an internal shaft hole (21); the inner wall of the shaft hole (21) is uniformly provided with several coaxial first sealing grooves (22), and the top of the ball valve seat (1) is uniformly fixed with several coaxial first sealing rings (23); the top of the ball valve (2) is fixed with a valve stem (24) that rotates with the shaft hole (21); the outer circumferential side of the valve stem (24) is uniformly fixed with several second sealing rings (25) that are adapted to the corresponding first sealing grooves (22); the circumferential side of the valve stem (24) is fixed with a sealing cover (26) that is adapted to the outer wall of the ball valve seat (1); the inner wall of the sealing cover (26) is uniformly provided with several second sealing grooves (27) that are adapted to the corresponding first sealing rings (23); a servo motor (28) is fixedly installed in the top of the L-shaped plate (14); the output end of the servo motor (28) is fixedly connected to the end of the valve stem (24); The valve stem (24) has a threading groove (29) inside that communicates with the slide groove (5); a connecting rope (30) is fixedly connected to the end of the slide rod (7); the other end of the connecting rope (30) passes through the threading groove (29) and is connected to a ball head (31); a lead screw (32) is rotatably provided on the circumferential side of the valve stem (24), and a guide rod (33) is fixed on the circumferential side of the valve stem (24); a sliding plate (34) is slidably provided on the guide rod (33) and rotates with the thread of the lead screw (32); a ball seat (35) that matches the ball head (31) is fixed at the top of the sliding plate (34).

2. A non-clogging valve for a pipeline according to claim 1, characterized in that: The drive unit includes a first rotating cavity (36) opened inside the ball valve (2) and a second rotating cavity (37) opened inside the valve stem (24) and communicating with the first rotating cavity (36); a rotating rod (38) is rotatably arranged inside the second rotating cavity (37); a drive gear (39) rotatably arranged inside the first rotating cavity (36) is fixed at the bottom end of the rotating rod (38); a first screw (40) is rotatably arranged at the top inside the first rotating cavity (36), and a vertical rod (41) is fixed at the top inside the first rotating cavity (36); a driven gear (42) that meshes with the drive gear (39) is fixed on the first screw (40).

3. A non-clogging valve for a pipeline according to claim 2, wherein: The piston plate (11) has a first threaded groove (43) and a sliding groove (44) sequentially opened on its top; the first screw (40) is threadedly rotated with the first threaded groove (43); the vertical rod (41) is slidably engaged with the sliding groove (44).

4. A pipeline anti-blocking valve according to claim 3, characterized in that: The drive unit includes a piston chamber (45) and a connecting chamber (46) sequentially opened inside the ball valve (2); the piston chamber (45) and the connecting chamber (46) are both connected to the receiving chamber (9); the valve stem (24) has a second threaded groove (47) that communicates with the piston chamber (45); a piston block (65) is slidably arranged inside the piston chamber (45); a second screw (48) that is threadedly engaged with the second threaded groove (47) is rotatably arranged on the top of the piston block (65).

5. A pipeline anti-blocking valve according to claim 4, characterized in that: A limiting rod (49) is fixed at the top of the connecting cavity (46); a limiting groove (50) is provided at the top of the piston plate (11) to slide with the limiting rod (49); a tension spring (51) sleeved on the limiting rod (49) is fixedly connected between the piston plate (11) and the connecting cavity (46).

6. A pipeline anti-blocking valve according to claim 5, characterized in that: The drive unit includes an installation cavity (52) inside the ball valve (2); the installation cavity (52) is connected to the receiving cavity (9); a third threaded groove (53) is provided inside the valve stem (24); a Z-shaped tube (54) is provided between the third threaded groove (53) and the installation cavity (52); a third screw (55) is screwed into the third threaded groove (53); guide posts (56) are symmetrically fixed at the top of the installation cavity (52); positioning grooves (57) that slide with the guide posts (56) are symmetrically provided at the top of the piston plate (11); a connecting spring (58) sleeved on the guide post (56) is fixedly connected between the piston plate (11) and the top of the installation cavity (52); a pull rope (59) passing through the Z-shaped tube (54) is fixedly connected between the piston plate (11) and the third screw (55).

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