Patent ID: 12216021

DETAILED DESCRIPTION OF THE EMBODIMENTS

The disclosure provides a simulation device for magnetic closing of flap valve. In order to make the purpose, technical scheme and effect of the disclosure clearer and more definite, the disclosure is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the disclosure and are not used to limit the disclosure. It can be understood by those skilled in the art that the singular forms “a”, “one”, “said” and “this” used herein may also include the plural forms unless specifically stated. It should be further understood that the term “including” used in the description of the present disclosure refers to the existence of the features, integers, steps, operations, elements and/or components, but does not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It should be understood that when we call an element “connected” or “coupled” to another element, it can be directly connected or coupled to other elements, or there can be intermediate elements. In addition, the “connection” or “coupling” used herein may include wireless connection or wireless coupling. The term “and/or” as used herein includes all or any unit and all combinations of one or more associated listed items.

Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those generally understood by those skilled in the technical field of the present disclosure. The terms used in the specification of the disclosure herein are only for the purpose of describing specific embodiments, and are not intended to limit the disclosure.

As shown inFIG.1toFIG.3, the embodiment of the disclosure provides a simulation device for magnetic closing of flap valve, which includes a shell body10, a worktable20arranged inside the shell body10, a support30for fixing the worktable20, a magnetic pressure maintaining control mechanism40fixed on the surface of the worktable20, a magnetic valve cover closing control mechanism50, and a plane rotation driving mechanism60and vertical overturning driving mechanism70for driving the rotation of the worktable20.

In the embodiment, the magnetic pressure maintaining control mechanism40includes a valve seat41, a magnetic valve cover42movably connected with one end of the valve seat41, and a first magnet43for repelling the magnetic valve cover42. The valve seat41and the first magnet43are fixed on the worktable20. The magnetic valve cover closing control mechanism50includes a cylinder51and a lifting equipment52for driving the cylinder51to rise and fall. The lifting equipment52is fixed on the worktable20, and the lifting equipment52is located on a same plane as the valve seat41. When the cylinder51is located in the valve seat41, the magnetic valve cover42is in an open state, and when the cylinder51is separated from the magnetic valve cover42, the magnetic valve cover42is in a closed state.

In the embodiment, the driving of the plane rotation driving mechanism60and the vertical overturning driving mechanism70can change the state of the worktable20, so as to drive the state of the valve seat41arranged on the worktable20to change, and different states of the valve seat41can be simulated. Combined with the rise and fall of the cylinder51, the closure between the valve seat41and the magnetic valve cover42under different states can be simulated.

In one implementation of the present embodiment, the worktable20includes a first base21and a second base22. The shape of the first base21can be circular or other shapes.

For example, in combination withFIG.4, the shape of the first base21is circular, and the shape of the second base22is circular, which is adapted to the first base21. A through hole210is arranged in the middle of the first base21, the valve seat41passes through the through hole210, and both ends of the valve seat41are exposed on both sides of the first base21. One end of the valve seat41(connected with the magnetic valve cover) is fixed on the end surface of the first base21through a fixing member220. The first magnet is directly opposite to the magnetic valve cover, that is, when the magnetic valve cover is opened, the first magnet is directly opposite to the magnetic valve cover. And setting the magnetic valve cover directly opposite to the first magnet can ensure that the magnetic valve cover will not be offset when it is closed under the action of magnetic force. The lifting equipment52is arranged on one side of the valve seat.

In this embodiment, the plane rotation driving mechanism60includes a first gear61, a second gear62and a first power equipment63. The power equipment can be a motor. The first gear61is meshed with the second gear62, and the second gear62is fixedly connected with the output end of the first power equipment63. The first gear61is fixed on the end face of the circular base21away from the valve seat41(that is, the first gear61and the valve seat41are respectively arranged on the two opposite end faces of the circular base21). The second base22is provided with a hole for the output end of the motor to pass through. The first power equipment63is fixed on the second base22, and its output end is close to the first gear61, that is, the first gear61and the second gear62are arranged in the space formed between the first base21and the second base22. The second gear is driven to rotate by the rotation of the motor. After the second gear is meshed with the first gear, the first base21is driven to rotate relative to the second base22, that is, the plane rotation driving mechanism60can rotate the valve seat centered on its axis.

In this embodiment, the vertical overturning driving mechanism70includes a first transmission unit71, a second transmission unit72and a second power equipment73for driving the first transmission unit71and the second transmission unit72. The first transmission unit71and the second transmission unit72are fixedly connected with the second base22respectively, and the first transmission unit71is connected with an output end of the second power equipment73. The first transmission unit71includes a bearing and a rotating shaft matched with the bearing. One end of the rotating shaft is matched with the bearing, and the other end is fixed on the second base22. The second transmission unit72includes a bearing and a rotating shaft adapted to the bearing. One end of the rotating shaft is matched with the bearing, and the other end is fixed on the second base22. The bearings are respectively fixed on the support30. The second power equipment73can be an electric equipment or a manual equipment. For example, the second power equipment73is a manual equipment, including a hand wheel730. The rotating the hand wheel730can turn the first base21and the second base22vertically. Through the cooperation of the plane rotation driving mechanism60and the vertical overturning driving mechanism70, the situations of vertical drilling, horizontal drilling and inclined angle drilling can be simulated.

In one implementation of the present embodiment, the simulation device for magnetic closing of flap valve also includes a displacement adjustment mechanism80for adjusting the distance between the first magnet43and the valve seat41. The displacement adjustment mechanism80includes a pressure sensor (not shown), which is connected with the first magnet. The magnetic force between the first magnet43and the magnetic valve cover42can be detected by the pressure sensor. The distance between the first magnet and the magnetic valve cover is adjusted by the magnetic force between the magnetic valve cover42and the first magnet43in different cases, and an appropriate distance is selected.

Referring toFIG.5, in one implementation of this embodiment, the magnetic valve cover42includes a valve cover body421, a connecting arm422fixed on the valve cover body421for movable connection with an open end of the valve seat41, and a valve cover permanent magnet423fixed on the valve cover body. The connecting arm422can be an elastic sheet, one end of which is fixed on the valve cover body421, and the other end is movably connected with one end of the valve seat.

In one implementation of this embodiment, the valve seat41includes a cylinder body410and a second magnet420arranged inside the cylinder body410, and the second magnet420is used to attract the magnetic valve cover42.

The cylinder body410is a cylindrical cylinder with openings at both ends, and the material of the cylinder body410can be metal, such as cast iron, steel, etc. The second magnet420is a cylindrical magnet, and the cylindrical magnet420can be formed by splicing at least two tile magnets along the circumferential direction. For example, four tile magnets (such as tile magnet1, tile magnet2, tile magnet3and tile magnet4) are spliced along the circumferential direction. Wherein, the magnetization directions of the tile magnets can be the same or different, and the magnetization directions include axial magnetization direction and radial magnetization direction. For example, the magnetization direction of tile magnet1, tile magnet2, tile magnet3and tile magnet4is the axial direction.

In one implementation of this embodiment, the valve seat41also includes a bottom cover430, which is detachably connected with the cylinder body410, and the bottom cover430is provided with a hole431for pressure test.

In this embodiment, the bottom cover430refers to the other end (non-connecting end with the magnetic valve cover) used to block the cylindrical body410. By setting the bottom cover430and the magnetic valve cover42, the valve seat can be closed, that is, a closed space can be formed inside the valve seat.

In this embodiment, the bottom cover430includes a bottom cover body432for connecting the first step part433of the cylinder body and the second step part434distributed in steps with the first step part433, and the second step part is arranged at an end of the first step part433away from the cylinder body410. The outer surface of the first step part433is provided with an external thread, which can be connected with the cylinder body. It is easy to understand that the inner surface of the cylinder body is provided with an internal thread suitable for the external thread on the outer surface of the first step part433. When the first step part433is connected with the thread on the cylinder body, the end of the cylindrical magnet420away from the magnetic valve cover is supported on the first step433, and the second step part434is closely fitted with the end of the cylinder body, that is, the diameter of the second step part434is greater than the diameter of the first step part433.

In this embodiment, the hole431for testing the sealing pressure arranged on the bottom cover430is located in the center of the bottom cover430, and the hole431can be connected with the air supply mechanism (not shown in the figure) through a pipe to detect its sealing effect.

In summary, the embodiment of the disclosure provides a simulation device for magnetic closing of flap valve, including a worktable, a driving mechanism for driving the worktable to rotate, a valve seat fixed on the worktable, a magnetic valve cover movably connected with the valve seat, a first magnet for repelling the magnetic valve cover, a cylinder and a lifting equipment for driving the cylinder to rise and fall. When the cylinder is inserted into the valve seat driven by the lifting equipment, the cylinder prevents the closure of the magnetic valve cover. When the cylinder is out of contact with the magnetic valve cover driven by the lifting equipment, the magnetic valve cover is closed by the action of the magnetic force between the first magnet and the magnetic valve cover. Thus, the closing process of flap valve (valve seat and valve cover) in any direction of deep drilling coring under the action of magnetic force is simulated.

It should be understood that the application of the disclosure is not limited to the above examples. For those skilled in the art, it can be improved or transformed according to the above description. All these improvements and transformations should belong to the protection scope of the appended claims of the disclosure.