Intelligent check valve with monitoring function

Abstract

The invention discloses an intelligent check valve with a monitoring function, and relates to the technical field of check valves. Comprising a valve body, a liquid outlet cavity, a communicating cavity and a liquid inlet cavity are sequentially arranged in the valve body from top to bottom, and the inner diameter of the communicating cavity is smaller than that of the liquid outlet cavity and that of the liquid inlet cavity; and an upper end seat is mounted at the top of the valve body. By arranging the cleaning mechanism, the sliding barrel and the end frame structure can be driven to move upwards based on pushing of the pushing assembly, then the one-way plugging valve element is jacked upwards, in the process, based on counter-acting force, the end frame is pressed downwards, then a cleaning part and a convex ball are extruded out of the sliding barrel through an extrusion part, and the cleaning part and the convex ball are exposed to the outer side of the sliding barrel; along with pushing of the pushing assembly, the convex ball slides into the spiral sliding groove and slides under guiding of the spiral sliding groove, the sliding barrel rotates in the process, after the convex ball completely passes through the spiral sliding groove, the sliding barrel rotates based on resilience force of the flat spiral spring, and then the cleaning part is used for cleaning the liquid outlet cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of check valves, and in particular to an intelligent check valve with a monitoring function. Background Art

[0002] In fluid control systems, check valves are a common type of valve used to prevent backflow of media and ensure one-way flow in the system. However, traditional check valves have some problems during use, such as the accumulation of impurities inside after long-term use, which can cause blockage and affect the normal operation of the valve; at the same time, most existing check valves lack effective monitoring methods, making it impossible to timely understand the working status and internal conditions of the valves, and unable to perform cleaning in a timely manner, which brings inconvenience to the maintenance and management of the system.

[0003] After searching, the application scheme of Chinese patent application number CN202120620995.7 discloses a check valve that is easy to clean, including a valve body, a retaining ring is fixedly connected to the middle end of the inner cavity of the valve body, a sealing ring is fixedly connected to the inner wall of the retaining ring, a baffle is movably connected to the inner wall of the sealing ring, a valve stem is fixedly connected to the inner wall of the baffle, and a first limiter and a second limiter are movably connected to the right and left sides of the valve stem surface respectively, the front and rear sides of the first limiter and the second limiter are fixedly connected to the inner wall of the valve body, a spring is provided on the left side of the valve body surface, a cleaning cover is movably connected to the top of the valve body, and a limiting groove is provided on the top of the cleaning cover. The check valve in the above-mentioned document has the following shortcomings: it cannot monitor the working condition in real time and perform self-cleaning treatment, and there is room for improvement. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an intelligent check valve with a monitoring function.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An intelligent check valve with a monitoring function comprises a valve body, wherein the interior of the valve body is sequentially arranged as a liquid outlet cavity, a connecting cavity and a liquid inlet cavity from top to bottom, wherein the inner diameter of the connecting cavity is smaller than the inner diameters of the liquid outlet cavity and the liquid inlet cavity; an upper end seat is mounted on the top of the valve body, a one-way blocking valve core is mounted on the inner side of the valve body, the top outer wall of the one-way blocking valve core is slidably connected to the inner wall of the upper end seat, and the one-way blocking valve core and the upper end seat are connected via an upper spring; a lower end seat is mounted on the bottom of the valve body, and a cleaning mechanism is arranged in the lower end seat, wherein the cleaning mechanism comprises:

[0007] The end frame is sealed and slides on the inner wall of the top of the lower end seat, and the top of the end frame is flush with the top surface of the lower end seat;

[0008] A slide cylinder is slidably connected to the inner wall of the lower end seat, a slide rod is fixed to the bottom of the end frame, and the slide rod is slidably connected to the inner wall of the top end of the slide cylinder;

[0009] A first ball head slide, the first ball head slide is installed in the lower end seat, the first ball head slide is connected to the inner wall of the slide tube through a telescopic rod, and the first ball head slide moves radially in the slide tube under the guidance of the telescopic rod;

[0010] A second ball head slide, the second ball head slide is installed in the lower end seat, one end of the second ball head slide is connected to a convex ball, a second sleeve is provided on the inner side of the slide tube, the convex ball slides in the second sleeve, an opening for the convex ball to extend out is provided on the outer side of the slide tube, the second ball head slide is connected to the second sleeve through a second elastic connecting tube; a guide slider is provided on the second ball head slide, and the guide slider is slidably connected in the second sleeve;

[0011] A cleaning part, the cleaning part is mounted on the first ball head slide, and an opening is provided on the outer side of the slide tube for the cleaning part to extend out;

[0012] The extrusion part is installed at the bottom end of the slide rod and is used to extrude the cleaning part and the convex ball to the outside of the slide tube;

[0013] One-way limiting part, which is used to limit the end frame in one direction to prevent the end frame from moving toward the bottom of the lower end seat;

[0014] A pushing assembly, the pushing assembly is used to push the slide cylinder upward, and the bottom end of the slide cylinder is rotatably mounted on the output end of the pushing assembly, and the bottom end of the slide cylinder and the output end of the pushing assembly are connected by a plane scroll spring;

[0015] A spiral groove is provided inside the connecting cavity of the valve body, the initial position of the convex ball is located directly below the end of the spiral groove, and the spiral groove has an integer number of circles.

[0016] As a preferred embodiment of the present invention: the extrusion part includes a first extrusion block, the first extrusion block is fixed to the bottom end of the slide rod, and the bottom of the first extrusion block is an inverted truncated cone structure with a gradually decreasing diameter; the first ball head slide is located on the moving path of the first extrusion block; a connecting rod is fixed to the bottom of the first extrusion block, and a second extrusion block is fixed to the bottom end of the connecting rod, and the bottom of the second extrusion block is an inverted truncated cone structure with a gradually decreasing diameter; the second ball head slide is located on the moving path of the second extrusion block.

[0017] As a preferred embodiment of the present invention: the cleaning unit includes:

[0018] A cleaning brush, the cleaning brush is arranged on an outer wall of one side of the first ball head slide;

[0019] A first sleeve, the first sleeve is arranged inside the slide tube, the position of the first sleeve is matched with the opening, and the cleaning brush extends into the first sleeve;

[0020] A support spring, one end of which is connected to the first ball head slide, and the other end of which is connected to the inner wall of the slide tube.

[0021] As a preferred embodiment of the present invention: the pushing component includes:

[0022] An electric telescopic cylinder is installed at the bottom of the lower end seat through a bracket assembly, and a mounting plate is installed at the output end of the electric telescopic cylinder;

[0023] A push block is installed on the top of the installation plate, the bottom end of the slide cylinder is rotatably installed on the outer wall of the top of the push block, and one end of the plane scroll spring is fixed on the push block.

[0024] As a preferred embodiment of the present invention, the bracket assembly includes an outer bracket, the electric telescopic cylinder is installed on the outer bracket, two matching fixing hoops are fixed on the top of the outer bracket, and the outer bracket is fixed to the outer side of the lower end seat through the two fixing hoops.

[0025] As a preferred embodiment of the present invention: the one-way limiting portion includes:

[0026] The limit block is slidably connected to the top inner wall of the lower end seat. The limit block is an inverted trapezoidal structure. The side of the limit block close to the end frame is a plane. One end of the limit block and the inner wall of the lower end seat are connected by a side spring; the top edge of the slide cylinder is an arc structure.

[0027] As a preferred embodiment of the present invention: the bottom of the end frame and the top surface of the slide cylinder are connected via a first elastic connecting cylinder, and the first elastic connecting cylinder is located outside the slide rod.

[0028] As a preferred embodiment of the present invention: a liquid outlet pipe is connected to the top side of the valve body, and the liquid outlet pipe is communicated with the liquid outlet cavity of the valve body; a liquid inlet pipe is connected to the bottom side of the valve body, and the liquid inlet pipe is communicated with the liquid inlet cavity of the valve body; a first monitoring sensor module for monitoring the pressure in the liquid inlet pipe is arranged in the liquid inlet pipe, and a second monitoring sensor module for monitoring the pressure in the liquid outlet pipe is arranged in the liquid outlet pipe.

[0029] As a preferred embodiment of the present invention: it also includes a control module, and the first monitoring sensor module, the second monitoring sensor module and the electric telescopic cylinder are all electrically connected to the control module.

[0030] As a preferred embodiment of the present invention: a first annular slope is arranged on the inner side of the top of the connecting cavity of the valve body, and a second annular slope matching the first annular slope is arranged on the outer side of the bottom of the one-way blocking valve core.

[0031] The beneficial effects of the present invention are:

[0032] 1. The present invention provides a cleaning mechanism, which can drive the slide tube and the end frame structure to move upward based on the push of the pushing component, and then lift the one-way blocking valve core upward. During the process, based on the reaction force, the end frame is pressed downward, and then the cleaning part and the convex ball are squeezed out to the outside of the slide tube through the extrusion part, so that they are exposed to the outside of the slide tube. With the push of the pushing component, the convex ball slides into the spiral groove and slides under the guidance of the spiral groove. During the process, the slide tube rotates. When the convex ball completely passes through the spiral groove, the slide tube rotates based on the resilience of the plane scroll spring, and then the cleaning part is used to clean the liquid outlet cavity.

[0033] 2. In the present invention, when the pushing component drives the slide and other structures to reset, since the spiral slide groove is an integer number of circles, the convex ball can enter the spiral slide groove again to slide. When the convex ball leaves the spiral slide groove, the connecting cavity is cleaned by the cleaning part based on the rotation of the slide, thereby improving practicality.

[0034] 3. The present invention provides a cleaning part and an extrusion part, which can squeeze the first ball head slide and the second ball head slide outward under the movement of the extrusion part, and then squeeze them out of the outside of the slide tube, which is convenient for cleaning operations. The cleaning brush has a certain elasticity so that it can pass through the connecting cavity smoothly.

[0035] 4. The present invention can limit the end frame by setting a one-way limiting portion to prevent it from moving downward. When moving upward, the top edge of the slide can be used to squeeze the limiting block into the lower end seat to ensure smooth movement of the structure.

[0036] 5. The present invention, by setting up structures such as control modules, can determine whether there is an abnormality in the structure based on the monitoring information fed back by the first monitoring sensor module and the second monitoring sensor module. For example, when the pressure in the liquid inlet pipe is too high and the pressure in the liquid outlet pipe is too low, a certain degree of blockage may have occurred. In this case, the liquid supply is interrupted, and the electric telescopic cylinder is controlled to work to clean the inside of the valve body, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural schematic diagram of an intelligent check valve with a monitoring function proposed by the present invention;

[0038] Figure 2 This is a schematic structural diagram of a cross-section of an intelligent check valve with a monitoring function proposed by the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the upper end seat and the one-way blocking valve core of an intelligent check valve with a monitoring function proposed by the present invention;

[0040] Figure 4 This is a schematic structural diagram of a cross-section of the lower end seat of an intelligent check valve with a monitoring function proposed by the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of an intelligent check valve cleaning brush and a convex ball with a monitoring function proposed by the present invention;

[0042] Figure 6 This is a structural schematic diagram of an intelligent check valve outer bracket and an electric telescopic cylinder with monitoring function proposed by the present invention.

[0043] In the figure: 1 valve body, 2 lower end seat, 3 outer bracket, 4 electric telescopic cylinder, 5 fixing hoop, 6 liquid inlet pipe, 7 first monitoring sensor module, 8 upper end seat, 9 second monitoring sensor module, 10 liquid outlet pipe, 11 upper spring, 12 end frame, 13 first extrusion block, 14 push block, 15 one-way blocking valve core, 16 spiral slide groove, 17 first annular inclined surface, 18 second annular inclined surface, 19 side spring, 20 limit block, 21 slide rod, 22 first elastic connecting tube, 23 cleaning brush, 24 second ball head slide, 25 second elastic connecting tube, 26 second sleeve, 27 convex ball, 28 guide slider, 29 support spring, 30 slide tube, 31 second extrusion block, 32 opening, 33 connecting rod, 34 first ball head slide, 35 mounting plate. DETAILED DESCRIPTION

[0044] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0045] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] Embodiment 1:

[0047] An intelligent check valve with monitoring function, such as Figure 1-6 As shown, it includes a valve body 1, and the interior of the valve body 1 is sequentially arranged as a liquid outlet cavity, a connecting cavity and a liquid inlet cavity from top to bottom, and the inner diameter of the connecting cavity is smaller than the inner diameters of the liquid outlet cavity and the liquid inlet cavity; an upper end seat 8 is installed on the top of the valve body 1, and a one-way blocking valve core 15 is arranged on the inner side of the valve body 1, and the top outer wall of the one-way blocking valve core 15 is slidably connected to the inner wall of the upper end seat 8, and the one-way blocking valve core 15 and the upper end seat 8 are connected by an upper spring 11; a lower end seat 2 is installed at the bottom of the valve body 1, and a cleaning mechanism is arranged in the lower end seat 2, and the cleaning mechanism includes:

[0048] The end frame 12 is sealed and slid on the inner wall of the top of the lower end seat 2, and the top of the end frame 12 is flush with the top surface of the lower end seat 2;

[0049] The slide cylinder 30 is slidably connected to the inner wall of the lower end seat 2, and a slide rod 21 is fixed to the bottom of the end frame 12, and the slide rod 21 is slidably connected to the inner wall of the top end of the slide cylinder 30;

[0050] A first ball head slide 34, the first ball head slide 34 is installed in the lower end seat 2, the first ball head slide 34 and the inner wall of the slide tube 30 are connected by a telescopic rod, and the first ball head slide 34 moves radially in the slide tube 30 under the guidance of the telescopic rod;

[0051] A second ball head slide 24 is installed in the lower end seat 2. A convex ball 27 is connected to one end of the second ball head slide 24. A second sleeve 26 is provided inside the slide tube 30. The convex ball 27 slides in the second sleeve 26. An opening for the convex ball 27 to extend out is provided outside the slide tube 30. The second ball head slide 24 and the second sleeve 26 are connected by a second elastic connecting tube 25. A guide slider 28 is provided on the second ball head slide 24. The guide slider 28 is slidably connected in the second sleeve 26.

[0052] The cleaning part is mounted on the first ball head slide 34, and an opening 32 is provided on the outer side of the slide 30 for the cleaning part to extend out;

[0053] An extrusion part, which is installed at the bottom end of the slide rod 21 and is used to extrude the cleaning part and the convex ball 27 to the outside of the slide cylinder 30;

[0054] A one-way limiting portion, which is used to limit the end frame 12 in one direction to prevent the end frame 12 from moving toward the bottom of the lower end seat 2;

[0055] A pushing assembly, the pushing assembly is used to push the slide 30 upward, and the bottom end of the slide 30 is rotatably mounted on the output end of the pushing assembly, and the bottom end of the slide 30 and the output end of the pushing assembly are connected by a plane scroll spring;

[0056] A spiral groove 16 is provided inside the connecting cavity of the valve body 1, and the initial position of the convex ball 27 is located directly below the end of the spiral groove 16. The spiral groove 16 is an integer number of turns, wherein the pitch of the spiral groove 16 should satisfy the condition that the convex ball 27 can slide smoothly in the spiral groove 16;

[0057] By setting up a cleaning mechanism, the slide cylinder 30 and the end frame 12 structure can be driven to move upward based on the push of the pushing component, and then the one-way blocking valve core 15 is lifted upward. During the process, based on the reaction force, the end frame 12 is pressed downward, and then the cleaning part and the convex ball 27 are squeezed out to the outside of the slide cylinder 30 through the extrusion part, so that they are exposed to the outside of the slide cylinder 30. With the push of the pushing component, the convex ball 27 slides into the spiral slide groove 16 and slides under the guidance of the spiral slide groove 16. During the process, the slide cylinder 30 rotates. When the convex ball 27 completely passes through the spiral slide groove 16, based on the resilience of the plane scroll spring, the slide cylinder 30 rotates, and then the cleaning part is used to clean the liquid outlet cavity;

[0058] When the push assembly drives the slide 30 and other structures to reset, since the spiral slide groove 16 is an integer circle, the convex ball 27 can enter the spiral slide groove 16 again to slide. When the convex ball 27 is separated from the spiral slide groove 16, the connecting cavity is cleaned by the cleaning part based on the rotation of the slide 30, which improves the practicality.

[0059] It is worth noting that when the convex ball 27 descends to the top of the lower end seat 2, the end frame 12 should be separated from the one-way blocking valve core 15, or the force exerted by the one-way blocking valve core 15 on the end frame 12 is not enough to press the convex ball 27 out of the outside of the slide cylinder 30 to ensure smooth resetting of the structure.

[0060] In order to facilitate the cleaning portion and the convex ball 27 to the outside of the slide 30; Figure 4 , Figure 5 As shown, the extrusion portion includes a first extrusion block 13, which is fixed to the bottom end of the slide rod 21, and the bottom of the first extrusion block 13 is an inverted truncated cone structure with a gradually decreasing diameter; the first ball head slide 34 is located on the moving path of the first extrusion block 13; a connecting rod 33 is fixed to the bottom of the first extrusion block 13, and a second extrusion block 31 is fixed to the bottom end of the connecting rod 33, and the bottom of the second extrusion block 31 is an inverted truncated cone structure with a gradually decreasing diameter; the second ball head slide 24 is located on the moving path of the second extrusion block 31.

[0061] To facilitate cleaning; Figure 4 , Figure 5 As shown, the cleaning unit includes:

[0062] A cleaning brush 23, the cleaning brush 23 is arranged on an outer wall of one side of the first ball head slide 34;

[0063] A first sleeve, which is disposed inside the slide 30, and the position of the first sleeve matches the opening 32, and the cleaning brush 23 extends into the first sleeve;

[0064] A support spring 29, one end of the support spring 29 is connected to the first ball head slide 34, and the other end is connected to the inner wall of the slide cylinder 30;

[0065] By setting up the cleaning part and the extrusion part, the first ball head slide 34 and the first ball head slide 34 can be squeezed outward under the movement of the extrusion part, and then squeezed out of the slide tube 30, which is convenient for cleaning operations. The cleaning brush 23 has a certain elasticity so that it can pass through the connecting cavity smoothly.

[0066] In order to facilitate the movement of the structure; Figure 2 , Figure 4 , Figure 6 As shown, the pushing component includes:

[0067] The electric telescopic cylinder 4 is mounted on the bottom of the lower end seat 2 through a bracket assembly, and a mounting plate 35 is mounted on the output end of the electric telescopic cylinder 4;

[0068] The push block 14 is mounted on the top of the mounting plate 35 , the bottom end of the slide cylinder 30 is rotatably mounted on the top outer wall of the push block 14 , and one end of the plane spiral spring is fixed on the push block 14 .

[0069] To facilitate installation; Figure 1 , Figure 6 As shown, the support assembly includes an outer support 3, an electric telescopic cylinder 4 is installed on the outer support 3, two matching fixing hoops 5 are fixed on the top of the outer support 3, and the outer support 3 is fixed to the outer side of the lower end seat 2 through the two fixing hoops 5.

[0070] In order to facilitate the end frame 12 to limit; Figure 4 As shown, the one-way limiting portion includes:

[0071] The limit block 20 is slidably connected to the top inner wall of the lower end seat 2. The limit block 20 is an inverted trapezoidal structure. The side of the limit block 20 close to the end frame 12 is a plane. One end of the limit block 20 is connected to the inner wall of the lower end seat 2 through a side spring 19;

[0072] The top edge of the slide 30 is an arc-shaped structure;

[0073] By setting a one-way limiting part, the end frame 12 can be limited to prevent it from moving downward. When moving upward, the top edge of the slide cylinder 30 can be used to squeeze the limiting block 20 into the lower end seat 2 to ensure smooth movement of the structure.

[0074] In addition, the opening and the one-way limit portion should be staggered, or the outer edge of the opening should be set as an arc surface to prevent the structure from getting stuck during movement; during movement, the slide 30 or the push block 14 can maintain contact with the limit block 20 to prevent it from popping out, so as to facilitate subsequent resetting.

[0075] To improve reliability; Figure 4As shown, the bottom of the end frame 12 and the top surface of the slide cylinder 30 are connected via a first elastic connecting cylinder 22 , and the first elastic connecting cylinder 22 is located outside the slide rod 21 .

[0076] To facilitate monitoring; Figure 1 As shown, a liquid outlet pipe 10 is connected to one side of the top of the valve body 1, and the liquid outlet pipe 10 is communicated with the liquid outlet cavity of the valve body 1; a liquid inlet pipe 6 is connected to one side of the bottom of the valve body 1, and the liquid inlet pipe 6 is communicated with the liquid inlet cavity of the valve body 1; a first monitoring sensor module 7 for monitoring the pressure in the liquid inlet pipe 6 is arranged in the liquid inlet pipe 6, and a second monitoring sensor module 9 for monitoring the pressure in the liquid outlet pipe 10 is arranged in the liquid outlet pipe 10.

[0077] To facilitate intelligent control of cleaning; Figure 1 As shown, a control module is also included, and the first monitoring sensor module 7, the second monitoring sensor module 9 and the electric telescopic cylinder 4 are all electrically connected to the control module;

[0078] By setting up structures such as control modules, it is possible to determine whether there is an abnormality in the structure based on the monitoring information fed back by the first monitoring sensor module 7 and the second monitoring sensor module 9. For example, when the pressure in the liquid inlet pipe 6 is too high and the pressure in the liquid outlet pipe 10 is too low, a certain degree of blockage may occur, and the liquid supply is interrupted, and the electric telescopic cylinder 4 is controlled to work to clean the inside of the valve body 1, thereby improving practicality;

[0079] The specific sensor model and signal line connection method can refer to the existing technology and will not be described in detail in this embodiment.

[0080] Embodiment 2:

[0081] An intelligent check valve with monitoring function, such as Figure 3 As shown, in order to improve reliability, this embodiment makes the following improvements on the basis of embodiment 1: a first annular slope 17 is provided on the inner side of the top of the communication cavity of the valve body 1, and a second annular slope 18 matching the first annular slope 17 is provided on the outer side of the bottom of the one-way blocking valve core 15;

[0082] By providing the first annular bevel 17 and the second annular bevel 18 , the blocking effect can be improved and the reliability can be improved.

[0083] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent check valve with monitoring function, characterized in that: The invention comprises a valve body (1), wherein the interior of the valve body (1) is sequentially arranged from top to bottom as a liquid outlet cavity, a connecting cavity and a liquid inlet cavity, wherein the inner diameter of the connecting cavity is smaller than the inner diameters of the liquid outlet cavity and the liquid inlet cavity; an upper end seat (8) is mounted on the top of the valve body (1), a one-way blocking valve core (15) is arranged on the inner side of the valve body (1), the top outer wall of the one-way blocking valve core (15) is slidably connected to the inner wall of the upper end seat (8), and the one-way blocking valve core (15) and the upper end seat (8) are connected via an upper spring (11); a lower end seat (2) is mounted on the bottom of the valve body (1), and a cleaning mechanism is arranged in the lower end seat (2), wherein the cleaning mechanism comprises: An end frame (12), the end frame (12) is sealingly slid on the inner wall of the top of the lower end seat (2), and the top of the end frame (12) is flush with the top surface of the lower end seat (2); A slide cylinder (30), the slide cylinder (30) is slidably connected to the inner wall of the lower end seat (2), a slide rod (21) is fixed to the bottom of the end frame (12), and the slide rod (21) is slidably connected to the inner wall of the top end of the slide cylinder (30); A first ball head slide (34), the first ball head slide (34) is installed in the lower end seat (2), the first ball head slide (34) and the inner wall of the slide cylinder (30) are connected by a telescopic rod, and the first ball head slide (34) moves radially in the slide cylinder (30) under the guidance of the telescopic rod; A second ball head slide (24), the second ball head slide (24) is installed in the lower end seat (2), one end of the second ball head slide (24) is connected to a convex ball (27), a second sleeve (26) is arranged inside the slide tube (30), the convex ball (27) slides in the second sleeve tube (26), an opening for the convex ball (27) to extend out is arranged outside the slide tube (30), the second ball head slide (24) and the second sleeve tube (26) are connected through a second elastic connecting tube (25); a guide slider (28) is arranged on the second ball head slide (24), and the guide slider (28) is slidably connected in the second sleeve tube (26); A cleaning part, the cleaning part is mounted on the first ball head slide (34), and an opening (32) is provided on the outer side of the slide cylinder (30) for the cleaning part to extend out; An extrusion part, which is mounted on the bottom end of the slide rod (21) and is used to extrude the cleaning part and the convex ball (27) toward the outside of the slide cylinder (30); A one-way limiting portion, which is used to limit the end frame (12) in one direction to prevent the end frame (12) from moving toward the bottom of the lower end seat (2); A pushing assembly, the pushing assembly is used to push the slide cylinder (30) upwards, and the bottom end of the slide cylinder (30) is rotatably mounted on the output end of the pushing assembly, and the bottom end of the slide cylinder (30) and the output end of the pushing assembly are connected via a planar scroll spring; A spiral groove (16) is provided on the inner side of the connecting cavity of the valve body (1), the initial position of the convex ball (27) is located directly below the end of the spiral groove (16), and the spiral groove (16) is an integer number of turns.

2. The intelligent check valve with monitoring function according to claim 1, characterized in that: The extrusion portion comprises a first extrusion block (13), the first extrusion block (13) is fixed to the bottom end of the slide rod (21), the bottom of the first extrusion block (13) is an inverted truncated cone structure with a gradually decreasing diameter; the first ball head slide (34) is located on the moving path of the first extrusion block (13); a connecting rod (33) is fixed to the bottom of the first extrusion block (13), a second extrusion block (31) is fixed to the bottom end of the connecting rod (33), the bottom of the second extrusion block (31) is an inverted truncated cone structure with a gradually decreasing diameter; the second ball head slide (24) is located on the moving path of the second extrusion block (31).

3. The intelligent check valve with monitoring function according to claim 2 is characterized in that: The cleaning unit comprises: A cleaning brush (23), the cleaning brush (23) being arranged on an outer wall of one side of the first ball head slide (34); A first sleeve, the first sleeve is arranged inside the slide tube (30), the position of the first sleeve is matched with the opening (32), and the cleaning brush (23) extends into the first sleeve; A support spring (29), one end of the support spring (29) is connected to the first ball head slide (34), and the other end is connected to the inner wall of the slide cylinder (30).

4. The intelligent check valve with monitoring function according to claim 3 is characterized in that: The pushing component comprises: An electric telescopic cylinder (4), the electric telescopic cylinder (4) is mounted on the bottom of the lower end seat (2) through a bracket assembly, and a mounting plate (35) is mounted on the output end of the electric telescopic cylinder (4); The push block (14) is mounted on the top of the mounting plate (35), the bottom end of the slide cylinder (30) is rotatably mounted on the top outer wall of the push block (14), and one end of the plane spiral spring is fixed on the push block (14).

5. The intelligent check valve with monitoring function according to claim 4, characterized in that: The support assembly comprises an outer support (3), an electric telescopic cylinder (4) is mounted on the outer support (3), two matching fixing hoops (5) are fixed on the top of the outer support (3), and the outer support (3) is fixed to the outside of the lower end seat (2) via the two fixing hoops (5).

6. The intelligent check valve with monitoring function according to claim 5, characterized in that: The one-way limiting portion comprises: A limit block (20) is slidably connected to the top inner wall of the lower end seat (2); the limit block (20) is an inverted trapezoidal structure; the side of the limit block (20) close to the end frame (12) is a plane; one end of the limit block (20) and the inner wall of the lower end seat (2) are connected via a side spring (19); and the top edge of the slide cylinder (30) is an arc-shaped structure.

7. The intelligent check valve with monitoring function according to claim 6, characterized in that: The bottom of the end frame (12) and the top surface of the slide cylinder (30) are connected via a first elastic connecting cylinder (22), and the first elastic connecting cylinder (22) is located outside the slide rod (21).

8. The intelligent check valve with monitoring function according to claim 4, characterized in that: A liquid outlet pipe (10) is connected to one side of the top of the valve body (1), and the liquid outlet pipe (10) is in communication with the liquid outlet cavity of the valve body (1); a liquid inlet pipe (6) is connected to one side of the bottom of the valve body (1), and the liquid inlet pipe (6) is in communication with the liquid inlet cavity of the valve body (1); a first monitoring sensor module (7) for monitoring the pressure in the liquid inlet pipe (6) is arranged in the liquid inlet pipe (6), and a second monitoring sensor module (9) for monitoring the pressure in the liquid outlet pipe (10) is arranged in the liquid outlet pipe (10).

9. The intelligent check valve with monitoring function according to claim 8, characterized in that: It also includes a control module, and the first monitoring sensor module (7), the second monitoring sensor module (9) and the electric telescopic cylinder (4) are all electrically connected to the control module.

10. The intelligent check valve with monitoring function according to claim 1, characterized in that: A first annular slope (17) is arranged on the inner side of the top of the communicating cavity of the valve body (1), and a second annular slope (18) matching the first annular slope (17) is arranged on the outer side of the bottom of the one-way blocking valve core (15).

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