Buffer type check valve

Abstract

The utility model relates to the technical field of check valves, in particular to a buffer type check valve which comprises a check valve structure. The check valve structure comprises a valve body piece, the side face of the valve body piece is connected with a water outlet pipe piece in a penetrating mode, and a water pressure buffering structure is installed at the end, away from the water outlet pipe piece, of the check valve structure. According to the circulating buffering device, a high-pressure water source firstly flows into the circulating buffering drum through the water inlet pipe to apply pressure to a water pressure buffering plate in the circulating buffering drum, so that the water pressure buffering plate is impacted by the water source to drive a buffering rotating rod to rotate in the circulating buffering drum, and the buffering rotating rod drives a flywheel to rotate in a magnetic field of an electromagnet; through the electromagnet and the flywheel based on mutual action between a magnetic field and a conductor, when the flywheel rotates, the conductor in the flywheel cuts the magnetic field, induced current is generated in the conductor according to the Faraday's law of electromagnetic induction, the induced current and the magnetic field interact to generate braking torque, and therefore resistance adjustment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a buffer type check valve. Background Art

[0002] The check valve is arranged in a pipeline, including a valve body and a valve core rotatably connected therein. When the fluid flows in the reverse direction, the fluid will push the valve core so that the passage in the valve body is closed. At this time, when the valve core closes the passage in the valve body, the fluid hits the valve core, and then a relatively obvious water hammer phenomenon occurs, causing the entire check valve to vibrate to a large extent, thereby affecting the sealing effect in the check valve. A Chinese patent has been disclosed (authorization announcement number CN 220082290 U), which discloses a buffer type check valve, belongs to the field of valve technology, solves the problem of generating a relatively obvious water hammer phenomenon, causing the entire check valve to vibrate to a large extent, thereby affecting the sealing effect in the check valve, and causing the problem that a good sealing effect cannot be guaranteed between the two. The utility model includes a valve body, and a connecting plate detachably connected to the valve body and arranged along the direction of the passage in the valve body, a flow channel for the fluid to pass through is opened on the connecting plate, a sliding rod is arranged through the thickness direction of the connecting plate, one end of the sliding rod restricts it from leaving the connecting plate, and the other end of the sliding rod shields the flow channel, and both ends of the sliding rod are made of elastic material. This patented technology solves the problem of elastic material at both ends of the sliding rod, so that one end can close the flow channel and the other end can limit the position to prevent the sliding rod from detaching. At the same time, the elastic material allows it to buffer and prevent the sliding rod from rigidly colliding with the connecting plate when the reverse fluid contacts one end of the sliding rod.

[0003] However, the continuous impact of water flow in the prior art will make the buffer component difficult to rebound, thereby reducing the effect of water source buffering. It is necessary to solve the problem of adjusting the water source buffering pressure and buffering the water source when water enters the water source.

[0004] Therefore, those skilled in the art provide a buffer-type check valve to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides:

[0006] A buffer-type check valve comprises: a check valve structure; the check valve structure comprises a valve body, a water outlet pipe is connected through the side of the valve body, and a water pressure buffer structure is installed at one end of the check valve structure away from the water outlet pipe; the water pressure buffer structure comprises a circulating buffer drum, one end of the circulating buffer drum is integrally penetrated by a buffer water pipe, and the other end of the circulating buffer drum is integrally connected to a water inlet pipe; a side fixed disk is integrally fixed to one side wall of the circulating buffer drum, a buffer rotating rod is rotatably installed at the center of the side fixed disk, one end of the buffer rotating rod rotates and penetrates the side fixed disk, and a flywheel is fixedly assembled, and an electromagnet is provided on the outside of the flywheel.

[0007] Preferably: the bottom end of the valve body is integrally sealed with a docking bottom valve, and the docking bottom valve is integrally connected to the buffer water pipe.

[0008] The circulating buffer drum is connected to the valve body for water supply through a buffer water pipe and a docking bottom valve.

[0009] Preferably: an inner valve groove is provided inside the valve body, a check valve core is movably provided inside the inner valve groove, a spring is installed on the surface of the check valve core, and a lower pressure plate is fixedly mounted on the top of the spring.

[0010] Preferably: a ring shaft is rotatably mounted at the center of the lower pressure plate, and a screw rod is rotatably mounted inside the ring shaft, a sealing disk is spirally driven outside the screw rod, and the sealing disk is detachably mounted on the surface of the valve body.

[0011] Preferably: a hand wheel is fixedly mounted on the top end of the screw rod.

[0012] Preferably: a pressure regulating cylinder is installed outside the electromagnet, the pressure regulating cylinder is fixedly assembled on the outer wall of the side fixed disk, and a sealing outer disk is detachably installed on the outer side of the pressure regulating cylinder.

[0013] Preferably: the outer wall of the buffer rotating rod is annular and fixedly equipped with four water pressure buffer plates at equal distances, and the water pressure buffer plates are movably located inside the circulating buffer drum.

[0014] The other side wall of the circulation buffer drum is detachably sealed with a side sealing disk.

[0015] The electromagnet is electrically connected to a controller, and the controller is mounted on the pressure regulating disk.

[0016] Technical effects and advantages of the utility model:

[0017] In the utility model, a high-pressure water source first flows into the interior of a circulation buffer drum through a water inlet pipe, and applies pressure to a water pressure buffer plate inside the circulation buffer drum, so that the water pressure buffer plate is impacted by the water source and drives a buffer rotating rod to rotate inside the circulation buffer drum, so that the buffer rotating rod drives a flywheel to rotate in the magnetic field of an electromagnet, and through the interaction between the electromagnet and the flywheel based on the magnetic field and the conductor, when the flywheel rotates, the conductor inside the flywheel cuts the magnetic field, and according to Faraday's law of electromagnetic induction, an induced current is generated in the conductor, and the induced current interacts with the magnetic field to generate a braking torque, thereby realizing the adjustment of the resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a buffer type check valve provided in an embodiment of the present application;

[0019] Figure 2 It is a schematic structural diagram of the front side of a buffer type check valve provided in an embodiment of the present application;

[0020] Figure 3 It is a structural schematic diagram of a side sealing disk of a buffer type check valve provided in an embodiment of the present application;

[0021] Figure 4 It is a structural schematic diagram of a water pressure buffer structure in a buffer type check valve provided in an embodiment of the present application;

[0022] Figure 5 It is a structural schematic diagram of a check valve structure in a buffer type check valve provided in an embodiment of the present application;

[0023] Figure 6 It is a schematic diagram of the structure of an electromagnet in a buffer-type check valve provided in an embodiment of the present application.

[0024] In the figure:

[0025] 1. Check valve structure; 101. Water outlet pipe; 102. Valve body; 103. Docking bottom valve; 104. Buffer water pipe; 105. Inner valve groove; 106. Check valve core; 107. Spring; 108. Sealing disc; 109. Screw rod; 110. Hand wheel;

[0026] 2. Water pressure buffer structure; 201. Circulation buffer drum; 202. Side sealing disk; 203. Side fixed disk; 204. Pressure regulating cylinder; 205. Buffer rotating rod; 206. Water pressure buffer plate; 207. Flywheel; 208. Electromagnet; 209. Sealed outer disk; 210. Water inlet pipe; 211. Controller. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0028] Embodiment:

[0029] See also Figures 1 to 6 In this embodiment, a buffer type check valve is provided, comprising: a check valve structure 1; the check valve structure 1 comprises a valve body 102, a water outlet pipe 101 is connected to the side of the valve body 102, and a water pressure buffer structure 2 is installed at one end of the check valve structure 1 away from the water outlet pipe 101;

[0030] The water pressure buffer structure 2 includes a circulating buffer drum 201, one end of the circulating buffer drum 201 is integrally provided with a buffer water pipe 104, and the other end of the circulating buffer drum 201 is integrally connected to a water inlet pipe 210;

[0031] A side fixed disk 203 is integrally fixed to one side wall of the circulating buffer drum 201, a buffer rotating rod 205 is rotatably installed at the center of the side fixed disk 203, one end of the buffer rotating rod 205 rotates through the side fixed disk 203, and a flywheel 207 is fixedly installed, and an electromagnet 208 is arranged outside the flywheel 207;

[0032] The bottom end of the valve body 102 is integrally sealed with a docking bottom valve 103, and the docking bottom valve 103 is integrally connected to the buffer water pipe 104; the circulating buffer drum 201 is connected to the valve body 102 for water supply through the buffer water pipe 104 and the docking bottom valve 103; the valve body 102 is provided with an inner valve groove 105, and a check valve core 106 is movably provided inside the inner valve groove 105, and a spring 107 is installed on the surface of the check valve core 106, and a lower pressure plate is fixedly assembled on the top of the spring 107;

[0033] A ring shaft is rotatably mounted at the center of the lower pressure plate, and a screw rod 109 is rotatably mounted on the inner side of the ring shaft. A sealing disc 108 is provided on the outer side of the screw rod 109 for spiral transmission. The sealing disc 108 is detachably mounted on the surface of the valve body 102. A hand wheel 110 is fixedly mounted on the top of the screw rod 109. A pressure regulating cylinder 204 is mounted on the outer side of the electromagnet 208. The pressure regulating cylinder 204 is fixedly mounted on the outer wall of the side fixed disk 203. A sealing outer disk 209 is detachably mounted on the outer side of the pressure regulating cylinder 204.

[0034] The outer wall of the buffer rotating rod 205 is annular and equidistantly fixed with four water pressure buffer plates 206, which are movably located on the inner side of the circulation buffer drum 201; the other side wall of the circulation buffer drum 201 is detachably sealed with a side sealing disk 202; the electromagnet 208 is electrically connected to the controller 211, and the controller 211 is installed on the pressure regulating disk 204.

[0035] Working principle:

[0036] The check valve structure 1 is connected to the water pipe through the flanges on the outlet pipe 101 and the inlet pipe 210;

[0037] When the check valve structure 1 is opened, the high-pressure water source first flows into the inside of the circulation buffer drum 201 through the water inlet pipe 210, and pressurizes the water pressure buffer plate 206 inside the circulation buffer drum 201, so that the water pressure buffer plate 206 is impacted by the water source and drives the buffer rotating rod 205 to rotate inside the circulation buffer drum 201, so that the buffer rotating rod 205 drives the flywheel 207 to rotate in the magnetic field of the electromagnet 208. Based on the interaction between the magnetic field and the conductor between the electromagnet 208 and the flywheel 207, when the flywheel 207 rotates, the conductor inside it cuts the magnetic field. According to Faraday's law of electromagnetic induction, an induced current is generated in the conductor, and the induced current interacts with the magnetic field to generate a braking torque, thereby realizing the adjustment of the resistance;

[0038] The electromagnet 208 is connected to a controller 211 for adjusting the gear voltage;

[0039] When the flywheel 207 rotates in the magnetic field inside the electromagnet 208, it has electromagnetic resistance, and the water source flowing inside the circulating buffer drum 201 is buffered through the water pressure buffer plate 206. The water source with reduced water pressure is discharged into the inner valve groove 105 of the valve body 102 through the buffer water pipe 104 connected to the bottom valve 103. The spring 107 is compressed by the water pressure through the check valve core 106, and the water source can be discharged into the inner valve groove 105, so that the water source passes through the inner valve groove 105 and is discharged from the water outlet pipe 101;

[0040] When the compression pressure of the spring 107 is adjusted, the screw rod 109 is manually rotated, and the rotation of the screw rod 109 will adjust the height along the spiral transmission of the sealing disk 108, so that the spring 107 descends through the lower pressure plate, and the compression pressure of the spring 107 is adjusted.

[0041] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0042] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A buffer type check valve, characterized in that: include: A check valve structure (1); the check valve structure (1) comprises a valve body (102), a water outlet pipe (101) is connected through the side of the valve body (102), and a water pressure buffer structure (2) is installed at one end of the check valve structure (1) away from the water outlet pipe (101); The water pressure buffer structure (2) comprises a circulating buffer drum (201), one end of the circulating buffer drum (201) is integrally provided with a buffer water pipe (104), and the other end of the circulating buffer drum (201) is integrally connected to a water inlet pipe (210); A side fixed disk (203) is integrally fixed to one side wall of the circulation buffer drum (201), a buffer rotating rod (205) is rotatably mounted at the center of the side fixed disk (203), one end of the buffer rotating rod (205) rotates through the side fixed disk (203) and is fixedly mounted with a flywheel (207), and an electromagnet (208) is arranged outside the flywheel (207).

2. A buffer type check valve according to claim 1, characterized in that: The bottom end of the valve body (102) is integrally sealed and provided with a docking bottom valve (103), and the docking bottom valve (103) is integrally connected to the buffer water pipe (104).

3. A buffer type check valve according to claim 2, characterized in that: An inner valve groove (105) is provided inside the valve body (102), a check valve core (106) is movably provided inside the inner valve groove (105), a spring (107) is installed on the surface of the check valve core (106), and a lower pressure plate is fixedly mounted on the top of the spring (107).

4. A buffer type check valve according to claim 3, characterized in that: A ring shaft is rotatably mounted at the center of the lower pressure plate, and a screw rod (109) is rotatably mounted inside the ring shaft. A sealing disc (108) is provided on the outside of the screw rod (109) for spiral transmission. The sealing disc (108) is detachably mounted on the surface of the valve body (102).

5. A buffer type check valve according to claim 4, characterized in that: A hand wheel (110) is fixedly mounted on the top of the screw rod (109).

6. A buffer type check valve according to claim 1, characterized in that: A pressure regulating cylinder (204) is installed outside the electromagnet (208). The pressure regulating cylinder (204) is fixedly assembled on the outer wall of the side fixed disk (203). A sealing outer disk (209) is detachably installed outside the pressure regulating cylinder (204).

7. A buffer type check valve according to claim 1, characterized in that: The outer wall of the buffer rotating rod (205) is annular and equidistantly fixed with four water pressure buffer plates (206), and the water pressure buffer plates (206) are movably located inside the circulating buffer drum (201).

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