A high sealing check valve

Abstract

The invention discloses a high-sealing one-way valve, which relates to the technical field of one-way valves. The invention connects a square tube at the connection between an inlet channel and an outlet channel, and slides a piston block in the square tube, so as to connect a cabin to the outlet channel. The water wheel is driven to rotate by means of the flow of fluid in the outlet channel, and the transmission mechanism transmits the rotational power. When the one-way valve is opened, the piston block is driven to drive a spherical valve core fixed on a spring away from a port of the inlet channel and stored in the square tube, so as to realize direct connection between the inlet channel and the outlet channel, avoid excessive impact and wear on the spherical valve core during the flow of fluid, and in the process of checking the reverse flow, the water wheel is pushed to rotate in the reverse direction, so as to drive the piston block to move in the reverse direction, drive the spherical valve core to reset and re-seal and squeeze it at the port of the inlet channel, and cooperate with the elastic support of the spring. Under the double cooperation, the sealing stability of the device during one-way interception of the fluid can be further improved.

Description

Technical Field

[0001] The invention relates to the technical field of one-way valves, and in particular to a high-sealing one-way valve. Background Art

[0002] A one-way valve is a valve used to limit the flow direction of fluid in a piping system. In a one-way valve, the fluid can only flow in through the water inlet and then flow out through the water outlet. With the help of the non-return structure in the valve body, the fluid cannot flow back from the water outlet to the water inlet. Therefore, the one-way valve is also called a check valve.

[0003] In the prior art, the non-return structure in the one-way valve is usually composed of an elastic unit and a valve core that is supported and blocked at the valve port by the elastic unit. Under normal circumstances, the inside of the one-way valve is in a blocked state. During use, the valve core can be pushed open under the pushing force of the fluid flowing forward to achieve the connectivity of the one-way valve. The structure is simple and easy to use. However, since the valve core is arranged on the fluid flow path, the fluid flow can easily cause abnormal wear to the valve core during long-term use, resulting in the valve core no longer fitting with the valve port due to abnormal wear, affecting the sealing of the one-way valve for fluid reverse flow check, and it is difficult to use it stably in a precision piping system for a long time.

[0004] Therefore, a high sealing one-way valve is proposed to solve some problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that during the use of the one-way valve, the valve core is in the fluid flow path for a long time, which makes the valve core easily washed by the fluid and abnormally worn, resulting in the sealing performance of the valve core being affected when it is blocked at the valve port for non-return, and to propose a high-sealing one-way valve.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0007] A high-sealing one-way valve comprises a valve body, wherein a water inlet channel and a water outlet channel which are vertically connected are provided through the valve body, a square tube is fixed to the valve body, and one end of the square tube is connected to the connection between the water inlet channel and the water outlet channel, a piston block is slidably installed in the square tube, and a screw rod arranged parallel to the square tube is installed in the piston block, a spring is fixedly installed at one end of the screw rod close to the water inlet channel, and a spherical valve core adapted to the port of the water inlet channel is fixed on the spring, a cabin connected to the water outlet channel is provided in the valve body, and a water wheel is rotatably installed in the cabin, a first gear rod arranged parallel to the square tube is fixed to the piston block, a first gear meshing with the first gear rod is rotatably installed in the valve body, and a transmission mechanism connected between the water wheel and the first gear is provided in the valve body.

[0008] Preferably, there is an angle of 45° between the square tube and the water outlet channel, a plug rod is slidably inserted at the end of the screw, and the plug rod is fixedly connected to the spherical valve core.

[0009] Preferably, the other end of the square tube is connected to the outer end wall of the valve body, and the screw thread is screwed into the piston block.

[0010] Preferably, a metal gasket sleeved on the outside of the water inlet channel port is fixed at the connection between the water inlet channel, the water outlet channel and the screw, and the metal gasket is made of an elastic metal sheet, and the cross-section of the metal gasket is set to a C-shaped structure.

[0011] Preferably, the transmission mechanism includes a sliding rod that slides vertically in the valve body, and a worm gear is fixed to the upper end of the sliding rod, a second gear is fixed to the lower end of the sliding rod, a worm gear meshing with the worm gear is rotatably installed in the valve body, a first bevel gear coaxially fixed to the water wheel is rotatably installed in the valve body, a second bevel gear meshing with the first bevel gear is fixed at the end of the worm gear, a second gear coaxially fixed to the first gear is rotatably installed in the valve body, and the second gear meshes with the second gear.

[0012] Preferably, the water inlet channel, water outlet channel, square tube and cabin are located on the same vertical plane, the valve body is divided into three parts: front, middle and rear along the vertical plane where the square tube and the slide rod are located, a sleeve is provided on the outer movable sleeve of the valve body, and a window corresponding to the square tube is opened on the sleeve, and a bolt is screwed on the sleeve.

[0013] Preferably, a vertically arranged flat surface is provided on the outer end wall of the valve body, and the inner dimension of the sleeve is closely matched with the outer dimension of the valve body.

[0014] Preferably, the sleeve is installed in the installation cavity, the outer size of the sleeve is adapted to the inner size of the installation cavity, the installation cavity is symmetrically opened on the upper and lower sides of the pump body, a chamber connected between the two installation cavities is opened in the middle position of the pump body, a piston cylinder connected to the chamber is fixed on the pump body, and a piston column is slidably installed in the piston cylinder, a threaded hole connected to the installation cavity is opened at the end of the pump body, and a plug is screwed on the thread in the threaded hole, a connecting hole connected to the threaded hole is opened on the outer end wall of the pump body, an L-shaped transfer channel connected between the installation cavity and the connecting hole is opened in the plug, and a first sealing gasket is installed between the threaded hole and the plug.

[0015] Preferably, the inner end wall of the installation cavity is equipped with an internal thread, and the outer end wall of the sleeve is equipped with an external thread that matches the internal thread of the installation cavity.

[0016] Preferably, joints are inserted at both the upper and lower ends of the sleeve, and a hexagonal through slot is opened in the joint, the hexagonal through slot is set through, a second sealing gasket is installed between the sleeve and the joint, and a second sealing gasket is also installed at the outer port of the hexagonal through slot, and a magnet is embedded in the end wall of the joint.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, by connecting a square tube at the connection between the water inlet channel and the water outlet channel, and slidingly installing a piston block in the square tube, the cabin is connected to the water outlet channel, and the water wheel is driven to rotate by means of the flow of fluid in the water outlet channel. In combination with the transmission mechanism for the transmission of the rotational power, and the meshing of the first gear and the first gear rod, when the one-way valve is opened, the piston block can be driven to drive the spherical valve core fixed on the spring away from the port of the water inlet channel and stored in the square tube, so as to realize the direct connection between the water inlet channel and the water outlet channel, so that the fluid flow process will not cause excessive impact on the stored spherical valve core, which is conducive to reducing the wear of the spherical valve core caused by the impact of the fluid during long-term use, and further conducive to improving the sealing of the spherical valve core at the port of the water inlet channel. In the process of checking the reverse flow, the water wheel is pushed to rotate in the reverse direction, driving the piston block to move in the reverse direction, driving the spherical valve core to reset and re-seal and squeeze at the port of the water inlet channel, and in combination with the elastic support of the spring, the double cooperation can further improve the sealing stability of the device when the fluid is intercepted in one direction;

[0019] 2. In the present invention, by screwing the screw thread into the piston block and setting the end of the square tube away from the connection between the water inlet channel and the water outlet channel to be open through, the staff can flexibly adjust the distance between the end of the screw and the water inlet channel port when the spherical valve core is pressed against the water inlet channel port by rotating the screw according to actual use needs, so that the spring can more tightly press the spherical valve core against the port of the water inlet channel, thereby further improving the sealing performance of the device for one-way check of the fluid;

[0020] 3. In the present invention, the slide bar is only provided with a small number of teeth, so that the continuous rotation of the worm will drive the worm gear to move below the worm. In this state, the continuous rotation of the worm will no longer drive the slide bar to continue to move downward, so that the water wheel can idle in the cabin and will not cause obstruction to the flow of the fluid in the water outlet channel, which is conducive to ensuring the smoothness of the forward flow of the fluid through the device;

[0021] 4. In the present invention, the valve body is divided into three parts, namely, front, middle and rear parts, by two vertical planes, and the front, middle and rear parts of the valve body are restricted by a sleeve sleeved on the outside. Under the restraint of the sleeve, the front, middle and rear parts of the valve body form a tight whole, which can effectively improve the convenience of disassembly and assembly of the one-way valve and facilitate the inspection and maintenance of the one-way valve by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 This is a disassembled diagram of the one-way valve of the present invention;

[0024] Figure 2 is a three-dimensional diagram of a one-way valve of the present invention;

[0025] Figure 3 For the present invention Figure 2 A top view of the structure in the middle;

[0026] Figure 4 For the present invention Figure 3 Sectional view at AA in the middle;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of point C in the middle;

[0028] Figure 6 For the present invention Figure 3 Sectional view at the middle BB;

[0029] Figure 7 This is a disassembled diagram of the internal structure of the valve body of the present invention;

[0030] Figure 8 It is a cross-sectional view of the one-way valve of the present invention when it is opened;

[0031] Fig. 9 A three-dimensional diagram showing the one-way valve of the present invention installed in a pump body;

[0032] Fig.10 For the present invention Fig. 9 Cross-sectional view of the structure.

[0033] Serial number in the picture:

[0034] 1. Valve body; 101. Water inlet channel; 102. Water outlet channel; 103. Square tube; 104. Piston block; 105. Screw; 106. Spring; 107. Ball valve core; 108. Insert rod; 109. Metal gasket;

[0035] 2. Cabin; 201. Water wheel; 202. First gear rod; 203. First gear;

[0036] 3. Sliding rod; 301. Worm gear; 302. Second gear rod; 303. Worm; 304. First bevel gear; 305. Second bevel gear; 306. Second gear;

[0037] 4. sleeve; 401. window; 402. bolt; 403. flat surface;

[0038] 5. Pump body; 501. Chamber; 502. Piston cylinder; 503. Piston column; 504. Mounting cavity; 505. Threaded hole; 506. Plug; 507. Connecting hole; 508. L-shaped transfer channel; 509. First sealing gasket;

[0039] 6. Connector; 601. Hexagon socket groove; 602. Second sealing gasket. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Embodiment: This embodiment provides a high sealing one-way valve, see Figure 1 - Fig.10 Specifically, it includes a valve body 1, in which a water inlet channel 101 and a water outlet channel 102 are vertically connected, a square tube 103 is fixed in the valve body 1, and one end of the square tube 103 is connected to the connection between the water inlet channel 101 and the water outlet channel 102, a piston block 104 is slidably installed in the square tube 103, and a screw 105 arranged parallel to the square tube 103 is installed in the piston block 104, and a spring 1 is fixedly installed at one end of the screw 105 close to the water inlet channel 101 06, and a spherical valve core 107 adapted to the port of the water inlet channel 101 is fixed on the spring 106, a chamber 2 connected to the water outlet channel 102 is opened in the valve body 1, and a water wheel 201 is rotatably installed in the chamber 2, a first gear rod 202 arranged parallel to the square tube 103 is fixed on the piston block 104, a first gear 203 meshing with the first gear rod 202 is rotatably installed in the valve body 1, and a transmission mechanism connected between the water wheel 201 and the first gear 203 is arranged in the valve body 1.

[0042] When the device is in use, the staff can use the device to limit the reverse movement of the fluid in the pipeline system. When the fluid enters the one-way valve from the water inlet channel 101, the driving force formed by the fluid flow will overcome the elastic supporting force of the spring 106 on the spherical valve core 107, so that the spherical valve core 107 moves to the side away from the port of the water inlet channel 101. In this state, the port of the water inlet channel 101 is no longer blocked by the spherical valve core 107, and the fluid can flow to the water outlet channel 102 through the opened port of the water inlet channel 101, and flow out of the one-way valve through the water outlet channel 102. When the fluid passes through the water outlet channel 102, it will flow through the cabin 2, thereby driving the water wheel 201 rotatably installed in the cabin 2 to rotate, and then under the power transmission of the transmission mechanism between the water wheel 201 and the first gear 203, the first gear 203 can be driven to rotate. With the help of the first gear 203 and The meshing of the first gear rod 202 drives the first gear rod 202 to drive the piston block 104 to move in the square tube 103 in the direction away from the connection between the water inlet channel 101 and the water outlet channel 102. Driven by the moving away action of the piston block 104, the screw rod 105 and the spring 106 drive the spherical valve core 107 to be stored in the square tube 103. At this time, the water inlet channel 101 and the water outlet channel 102 are in a straight-through state, so that the fluid will not be blocked by the spherical valve core 107 when flowing from the water inlet channel 101 to the water outlet channel 102, which is conducive to improving the smoothness and efficiency of the fluid flow. The above-mentioned structural arrangement ensures that the stored spherical valve core 107 will not be excessively impacted during the fluid flow process, which is conducive to reducing the wear of the spherical valve core 107 caused by the fluid impact during long-term use, and further conducive to improving the sealing of the spherical valve core 107 at the port of the water inlet channel 101.

[0043] When the fluid is about to flow in the opposite direction from the water outlet channel 102 to the water inlet channel 101, the reversely flowing fluid will drive the water wheel 201 to rotate in the opposite direction inside the cabin 2 when passing through the cabin 2 connected to the water outlet channel 102. Under the transmission connection of the transmission mechanism, the first gear 203 will be driven to rotate in the opposite direction, and then under the meshing of the first gear 203 and the first gear rod 202, the piston block 104 will be driven to move in the square tube 103 toward the connection between the water inlet channel 101 and the water outlet channel 102. Under the connection of the screw rod 105 and the spring 106, the spherical valve core 107 will be driven to re-enter the connection between the water inlet channel 101 and the water outlet channel 102, and re-seal the water inlet channel 101. 01, in this state, the fluid cannot flow from the water outlet channel 102 to the water inlet channel 101, and in the process of the fluid flowing back from the water outlet channel 102, the extrusion thrust is applied to the spherical valve core 107, which can press the spherical valve core 107 against the port of the water inlet channel 101. The device uses the power of the reverse flow of the fluid to drive the piston block 104 to slide in the opposite direction, driving the spherical valve core 107 to be squeezed against the port of the water inlet channel 101 again, and uses the extrusion force provided by the reverse flow of the flow to directly press the spherical valve core 107 against the port of the water inlet channel 101. Under the dual coordination, the sealing stability of the device during one-way interception of the fluid can be effectively improved.

[0044] In the specific implementation process, Figure 4 and Figure 5 As shown, there is an angle of 45° between the square tube 103 and the water outlet channel 102, and a plug rod 108 is slidably inserted at the end of the screw 105, and the plug rod 108 is fixedly connected to the spherical valve core 107. When the device is used, by setting a 45° angle between the square tube 103 and the water outlet channel 102, the square tube 103 is inclined relative to the water inlet channel 101 and the water outlet channel 102. During the sliding control process, the spherical valve core 107 cuts into the connection between the water inlet channel 101 and the water outlet channel 102 in an inclined state, or exits the water inlet channel 101 in an inclined state. At the connection between the channel 101 and the water outlet channel 102, at the same time, by slidingly inserting the plug rod 108 at the end of the screw 105, and fixing the spherical valve core 107 on the plug rod 108, the movement trajectory of the spherical valve core 107 is guided by means of the sliding insertion of the plug rod 108 and the end of the screw 105. With the 45° cutting-in angle, the stability of the elastic support of the spherical valve core 107 by the spring 106 and the spherical valve core 107 can be taken into account, and the spherical valve core 107 can be retracted by sliding to prevent it from being impacted and worn by the fluid for a long time, thereby improving the stability of the device during actual use to a certain extent.

[0045] In the specific implementation process, Figure 4As shown, the other end of the square tube 103 is connected to the outer end wall of the valve body 1, and the screw 105 is threadedly screwed into the piston block 104. When the device is in use, the staff can flexibly adjust the distance between the end of the screw 105 and the port of the water inlet channel 101 when the spherical valve core 107 is pressed against the port of the water inlet channel 101 according to actual use needs. By rotating the screw 105, with the help of the engagement of the thread, the end of the screw 105 is driven further toward the port of the water inlet channel 101. With the distance between the end of the screw 105 and the port of the water inlet channel 101 shortened, the spring 106 can more tightly press the spherical valve core 107 against the port of the water inlet channel 101, thereby further improving the sealing performance of the device for one-way check of the fluid.

[0046] In the specific implementation process, Figure 5 As shown, a metal gasket 109 is fixed at the connection between the water inlet channel 101, the water outlet channel 102 and the screw 105 and is sleeved on the outside of the port of the water inlet channel 101. The metal gasket 109 is made of an elastic metal sheet, and the cross section of the metal gasket 109 is set to a C-shaped structure. When the device is used, when the ball valve core 107 is blocked at the port of the water inlet channel 101, the ball valve core 107 will be pressed against the port of the water inlet channel 101 under the elastic support of the spring 106 and the force of the reverse flow of the fluid. The gasket 109 is made of elastic metal sheet, and the cross-section of the metal gasket 109 is set to a C-shaped structure. Under the extrusion of the spherical valve core 107, the metal gasket 109 at the port of the water inlet channel 101 will be deformed and filled in the gap between the port of the water inlet channel 101 and the metal gasket 109. Even if the spherical valve core 107 is worn due to continuous erosion of the fluid during long-term use, the metal gasket 109 can also complete the gap filling through elastic deformation adaptation, which can effectively improve the sealing of the device during actual use.

[0047] In the specific implementation process, Figure 1 and Figure 7As shown, the transmission mechanism includes a slide bar 3 that slides vertically in the valve body 1, and a worm gear 301 is fixed to the upper end of the slide bar 3, and a second gear rod 302 is fixed to the lower end of the slide bar 3. A worm 303 meshing with the worm gear 301 is rotatably installed in the valve body 1, a first bevel gear 304 coaxially fixed to the water wheel 201 is rotatably installed in the valve body 1, and a second bevel gear 305 meshing with the first bevel gear 304 is fixed at the end of the worm 303. A second gear 306 coaxially fixed to the first gear 203 is rotatably installed in the valve body 1, and the second gear 306 meshes with the second gear rod 302. When the device is used, in the process of using the transmission mechanism to transmit power between the water wheel 201 and the first gear 203, when the water wheel 201 is driven to rotate, it will bring The first bevel tooth 304 coaxially fixed therewith is driven to rotate, and the second bevel tooth 305 is driven to rotate by means of the meshing of the first bevel tooth 304 and the second bevel tooth 305. During the rotation of the second bevel tooth 305, the worm 303 fixedly connected thereto is driven to rotate. By means of the meshing of the worm 303 and the worm gear rod 301, the worm gear rod 301 is driven to drive the slide bar 3 to move up and down. During the up and down movement of the slide bar 3, the second gear rod 302 fixedly installed at the lower end thereof is driven to move up and down synchronously. During the up and down movement of the second gear rod 302, the meshing of the second gear rod 302 and the second gear 306 drives the first gear 203 to rotate synchronously. By means of the meshing of the first gear 203 and the first gear rod 202, power is provided for the sliding of the piston block 104 in the square tube 103.

[0048] by Figure 7 The middle structure is used as a reference. When the fluid flows from the water inlet channel 101 to the water outlet channel 102, the water wheel 201 is pushed to rotate counterclockwise. With the meshing of the first bevel gear 304 and the second bevel gear 305, and the meshing of the worm 303 and the worm gear rod 301, the slide bar 3 is driven to move downward. The worm gear rod 301 is only provided with a small number of teeth. The continuous rotation of the worm 303 drives the worm gear rod 301 to move below the worm 303. In this state, the continuous rotation of the worm 303 will no longer drive the slide bar 3 to continue to move downward, so that the water wheel 201 can idle in the cabin 2, and will not cause obstruction to the flow of the fluid in the water outlet channel 102, which is conducive to ensuring the smoothness of the fluid when it flows forward through the device. In addition, the device, with the self-locking property of the worm 303 and the worm gear rod 301 when meshing, makes it impossible for the slide bar 3 to move easily when the worm 303 is not driven to rotate, which is conducive to ensuring the structural stability of the device when it is actually used.

[0049] In the specific implementation process, Figure 3 and Figure 6As shown, the water inlet channel 101, the water outlet channel 102, the square tube 103 and the cabin 2 are located on the same vertical plane, and the valve body 1 is divided into three parts: front, middle and rear along the vertical plane where the square tube 103 and the vertical plane where the slide rod 3 are located. A sleeve 4 is movably sleeved on the outer side of the valve body 1, and a window 401 corresponding to the square tube 103 is provided on the sleeve 4. A bolt 402 is screwed on the sleeve 4. A vertically arranged flat surface 403 is provided on the outer end wall of the valve body 1. The internal size of the sleeve 4 is closely matched with the external size of the valve body 1. When the device is used, the valve body 1 is divided into three parts: front, middle and rear by two vertical planes, and the front, middle and rear parts of the valve body 1 are adjusted by the sleeve 4 sleeved on the outside. The sleeve 4 is provided with a flat surface 403 on the outer end wall of the valve body 1, so that when the sleeve 4 is sleeved on the front, middle and rear parts of the valve body 1, the sleeve 4 will not deflect relative to the valve body 1, and the screw connection of the bolt 402 is used for locking, which is beneficial to further improve the structural stability of the assembled one-way valve.

[0050] In the specific implementation process, Fig. 9 and Fig.10 As shown, the sleeve 4 is installed in the installation cavity 504, and the outer size of the sleeve 4 is adapted to the inner size of the installation cavity 504. The installation cavity 504 is symmetrically arranged on the upper and lower sides of the pump body 5, and a chamber 501 connected between the two installation cavities 504 is opened in the middle position of the pump body 5, a piston cylinder 502 connected with the chamber 501 is fixed on the pump body 5, and a piston column 503 is slidably installed in the piston cylinder 502, a threaded hole 505 connected with the installation cavity 504 is opened at the end of the pump body 5, and a plug 506 is screwed on the inner thread of the threaded hole 505, a connecting hole 507 connected with the threaded hole 505 is opened on the outer end wall of the pump body 5, an L-shaped transfer channel 508 connected between the installation cavity 504 and the connecting hole 507 is opened in the plug 506, and a first sealing gasket 509 is installed between the threaded hole 505 and the plug 506.

[0051] When the device is in use, the two one-way valves are respectively installed in the upper and lower installation chambers 504 in the pump body 5. The staff rotates the plug 506 to remove it from the threaded hole 505, then installs the one-way valve in the installation chamber 504, and screws the plug 506 back into the threaded hole 505, so that the one-way valve is tightly installed in the installation chamber 504. The water outlet channels 102 in the one-way valves in the upper and lower installation chambers 504 are both above the water inlet channel 101. The water outlet channel 102 in the one-way valve at the bottom is connected to the chamber 501, and the water inlet channel 101 in the one-way valve at the top is connected to the chamber 501. The right end of the piston column 503 is connected to a reciprocating drive unit. During the working process, driven by the reciprocating drive unit, the piston column 503 will move back and forth left and right in the piston cylinder 502. When the piston column 503 moves to the right in the piston cylinder 502, the left side of the piston cylinder 502 is connected to the chamber The space connected to 501 gradually increases. Under the action of pressure, the external fluid enters the water inlet channel 101 in the lower one-way valve through the lower connecting hole 507 under the connection of the lower L-shaped transfer channel 508, pushes open the spherical valve core 107, enters the water outlet channel 102 from the water inlet channel 101 port in the lower one-way valve, and then enters the chamber 501. As the connection space between the left side of the piston cylinder 502 and the chamber 501 continues to increase, the space is continuously filled. In this case, the upper one-way valve is in a one-way closed state, and the external fluid cannot enter through the upper connecting hole 507. When the fluid enters the chamber 501 through the lower one-way valve, it will drive the water wheel 201 in the lower one-way valve to rotate, and move the lower spherical valve core 107 to be stored in the lower square tube 103, ensuring that the water inlet channel 101 and the water outlet channel 102 in the lower one-way valve are directly connected, so that the fluid flows smoothly.

[0052] When the piston rod 503 moves to the left in the piston cylinder 502, the space connecting the left side of the piston cylinder 502 and the chamber 501 gradually shrinks. At this time, the spherical valve core 107 in the one-way valve below is elastically supported by the spring 106 and driven in reverse by the water wheel 201, and is tightly sealed at the port of the water inlet channel 101 below, so that the one-way valve below is in a one-way closed state, and the fluid in the space will be discharged from the upper connecting hole 507 through the upper one-way valve. With the help of the reciprocating movement of the piston rod 503 and the restrictions of the upper and lower one-way valves, the pumping operation of the fluid is realized.

[0053] In the specific implementation process, Figure 1 , Figure 4 , Fig. 9 and Fig.10As shown, the inner end wall of the installation cavity 504 is equipped with an internal thread, and the outer end wall of the sleeve 4 is equipped with an external thread that matches the internal internal thread of the installation cavity 504. The upper and lower ends of the sleeve 4 are plugged with a connector 6, and an internal hexagonal groove 601 is provided in the connector 6. The internal hexagonal groove 601 is set through, and a second sealing gasket 602 is installed between the sleeve 4 and the connector 6. The second sealing gasket 602 is also installed at the outer port of the internal hexagonal groove 601. A magnet is embedded in the end wall of the connector 6. When the device is used, the external thread is assembled on the sleeve 4, and the internal thread that matches the external thread is assembled in the installation cavity 504, so that the one-way valve can be screwed in by threading. Installing it in the installation cavity 504 can effectively improve the stability of the one-way valve installed in the installation cavity 504. At the same time, by installing the connector 6 at the upper and lower ends of the sleeve 4, with the help of the connection between the hexagonal through slot 601 in the connector 6 and the external hexagonal wrench, a power access point can be provided for the operation of screwing the one-way valve into the installation cavity 504. The connector 6 and the sleeve 4 are easy to disassemble and assemble, and connectors 6 of different specifications can be replaced according to actual usage requirements. At the same time, by installing the magnet in the end wall of the connector 6, the connection stability between the connector 6 and the sleeve 4 can be effectively improved, and with the help of the magnetic adsorption of the magnet on the magnetic conductive material, the iron filings in the fluid can be filtered to ensure the stability of the operation of the pipeline system.

[0054] Specifically, the working principle and operation method of the present invention are as follows:

[0055] When the fluid flows from the water inlet channel 101 to the water outlet channel 102, the spherical valve core 107 is pushed by the fluid to overcome the elastic support of the spring 106 and move, so that the port of the water inlet channel 101 is opened, and the fluid flows from the water inlet channel 101 into the water outlet channel 102. During the process of the fluid flowing through the water outlet channel 102, the water wheel 201 is pushed to rotate in the cabin 2. With the meshing of the first bevel gear 304 and the second bevel gear 305 in the transmission mechanism, the meshing of the worm 303 and the worm gear rod 301, and the meshing of the second gear rod 302 and the second gear 306, the first gear 203 is driven to rotate, and then with the meshing of the first gear 203 and the first gear rod 202, the piston block 104 is driven to move in the square tube 103 away from the connection position of the water inlet channel 101 and the water outlet channel 102, so as to drive the spherical valve core 107 to be stored in the square tube 103, so that the water inlet channel 101 is opened. The water channel 101 and the water outlet channel 102 are directly connected to ensure the smoothness of the one-way flow of the fluid, and to avoid abnormal wear caused by the long-term impact of the fluid on the spherical valve core 107. When the fluid flows back from the water outlet channel 102 to the water inlet channel 101, it will push the water wheel 201 to reverse in the cabin 2. With the help of the reverse transmission of the power by the transmission mechanism, the first gear 203 is reversed, and then the piston block 104 moves in the square tube 103 toward the connection between the water inlet channel 101 and the water outlet channel 102, driving the spherical valve core 107 to re-enter the port of the water inlet channel 101, and with the elastic support of the spring 106, the spherical valve core 107 is blocked at the port of the water inlet channel 101, and with the elastic deformation and filling of the metal gasket 109 after being squeezed, the connection between the water inlet channel 101 and the water outlet channel 102 is cut off, thereby realizing the anti-backflow operation of the fluid.

[0056] The above are only preferred specific implementation modes 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 solutions and inventive concepts 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. A high-sealing one-way valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a water inlet channel (101) and a water outlet channel (102) which are vertically connected. A square tube (103) is fixed in the valve body (1), and one end of the square tube (103) is connected to the connection between the water inlet channel (101) and the water outlet channel (102). A piston block (104) is slidably mounted in the square tube (103), and a screw rod (105) arranged parallel to the square tube (103) is mounted in the piston block (104). A spring (106) is fixedly mounted at one end of the screw rod (105) close to the water inlet channel (101), and the spring (106) is fixedly mounted at one end of the screw rod (105) close to the water inlet channel (101). A spherical valve core (107) adapted to the port of the water inlet channel (101) is fixed on the valve body (106); a chamber (2) communicating with the water outlet channel (102) is provided in the valve body (1), and a water wheel (201) is rotatably installed in the chamber (2); a first gear rod (202) arranged parallel to the square tube (103) is fixed on the piston block (104); a first gear (203) meshing with the first gear rod (202) is rotatably installed in the valve body (1); and a transmission mechanism connected between the water wheel (201) and the first gear (203) is provided in the valve body (1); There is an angle of 45° between the square tube (103) and the water outlet channel (102); a plug rod (108) is slidably inserted at the end of the screw rod (105), and the plug rod (108) is fixedly connected to the spherical valve core (107); The transmission mechanism comprises a slide bar (3) which slides vertically in the valve body (1), a worm gear (301) being fixed at the upper end of the slide bar (3), a second gear bar (302) being fixed at the lower end of the slide bar (3), a worm (303) meshing with the worm gear (301) being rotatably mounted in the valve body (1), a first bevel gear (304) coaxially fixed to the water wheel (201) being rotatably mounted in the valve body (1), a second bevel gear (305) meshing with the first bevel gear (304) being fixed at the end of the worm (303), and a second gear (306) coaxially fixed to the first gear (203) being rotatably mounted in the valve body (1), and the second gear (306) meshing with the second gear bar (302).

2. A high sealing check valve according to claim 1, characterized in that: The other end of the square tube (103) is connected to the outer end wall of the valve body (1), and the screw rod (105) is threadedly screwed into the piston block (104).

3. A high sealing one-way valve according to claim 1, characterized in that: A metal gasket (109) sleeved on the outside of the port of the water inlet channel (101) is fixed at the connection between the water inlet channel (101), the water outlet channel (102) and the screw rod (105); the metal gasket (109) is made of an elastic metal sheet, and the cross-section of the metal gasket (109) is arranged in a C-shaped structure.

4. A high sealing check valve according to claim 1, characterized in that: The water inlet channel (101), the water outlet channel (102), the square tube (103) and the chamber (2) are located on the same vertical plane. The valve body (1) is divided into three parts, namely, front, middle and rear parts, along the vertical plane where the square tube (103) and the vertical plane where the slide rod (3) are located. A sleeve (4) is movably sleeved on the outer side of the valve body (1), and a window (401) corresponding to and communicating with the square tube (103) is formed on the sleeve (4). A bolt (402) is screwed onto the sleeve (4).

5. A high sealing one-way valve according to claim 4, characterized in that: A vertically arranged flat surface (403) is provided on the outer end wall of the valve body (1), and the inner dimensions of the sleeve (4) are closely matched with the outer dimensions of the valve body (1).

6. A high sealing check valve according to claim 4, characterized in that: The sleeve (4) is installed in the installation cavity (504), the outer dimensions of the sleeve (4) are adapted to the inner dimensions of the installation cavity (504), the installation cavity (504) is symmetrically arranged at the upper and lower sides of the pump body (5), a chamber (501) connected between the two installation cavities (504) is arranged in the middle of the pump body (5), a piston cylinder (502) connected to the chamber (501) is fixed on the pump body (5), and a piston column (503) is slidably installed in the piston cylinder (502), and the pump body A threaded hole (505) communicating with the installation cavity (504) is formed at the end of the pump body (5), and a plug (506) is screwed into the threaded hole (505). A connecting hole (507) communicating with the threaded hole (505) is formed on the outer end wall of the pump body (5). An L-shaped transfer channel (508) communicating between the installation cavity (504) and the connecting hole (507) is formed in the plug (506), and a first sealing gasket (509) is installed between the threaded hole (505) and the plug (506).

7. A high sealing check valve according to claim 6, characterized in that: An inner end wall of the installation cavity (504) is provided with an internal thread, and an outer end wall of the sleeve (4) is provided with an external thread that matches the internal internal thread of the installation cavity (504).

8. A high sealing check valve according to claim 7, characterized in that: The upper and lower ends of the sleeve (4) are both plugged with connectors (6), and a hexagonal through slot (601) is provided in the connector (6). The hexagonal through slot (601) is arranged to pass through. A second sealing gasket (602) is installed between the sleeve (4) and the connector (6). A second sealing gasket (602) is also installed at the outer end of the hexagonal through slot (601). A magnet is embedded in the end wall of the connector (6).

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