CN113236164B - A clamping mechanism of a magnetic trigger device and a magnetic closure simulation device for a flap valve - Google Patents

Abstract

The invention discloses a clamping mechanism of a magnetic trigger device and a magnetic closure simulation device of a flap valve, comprising: the clamping device comprises a first clamping piece, a second clamping piece and a control mechanism, wherein the second clamping piece is arranged opposite to the first clamping piece, the control mechanism is used for locking the first clamping piece, and the first clamping piece is fixedly connected with the control mechanism. When an object is required to be fixed, the first clamping piece is matched with the second clamping piece, and the first clamping piece is locked by the control mechanism, so that the object to be fixed (such as a valve seat) can be firmly fixed between the first clamping part and the second clamping part. Meanwhile, the clamping mechanism is simple in structure and easy to process.

Description

A clamping mechanism of a magnetic trigger device and a magnetic closure simulation device for a flap valve

technical field

The invention relates to the technical field of pressure-holding coring experiment simulation devices, in particular to a clamping mechanism of a magnetic trigger device and a magnetic closure simulation device for a flap valve.

Background technique

When sampling deep cores, in order to protect the obtained in-situ cores under deep conditions, it is often necessary to use in-situ fidelity coring devices to drill the cores with drilling tools and store the cores in the flap valves or pressure-holding ball valves of the in-situ fidelity coring devices. Case of normal shutdown.

In order to develop a coring pressure maintaining device that can adapt to different drilling conditions, it is often necessary to use a simulation device that can simulate the closing process of the deep drilling coring flap valve under the action of magnetic force. However, after the relevant simulation device fixes the flap valve, the valve seat tends to shake when it is rotated, so that the magnetic valve cover in the open state cannot be directly aligned with the trigger magnet, which affects the closing of the magnetic valve cover.

Therefore, prior art still needs further promotion.

Contents of the invention

In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a clamping mechanism of a magnetic trigger device and a magnetic closing simulation device for a flap valve, aiming at solving the problem of unstable fixing of the valve seat in the magnetic closing simulation device for a flap valve.

In a first aspect, an embodiment of the present invention provides a clamping mechanism of a magnetic trigger device, which includes: a first clamping piece, a second clamping piece opposite to the first clamping piece, and a control mechanism for locking the first clamping piece, and the first clamping piece is fixedly connected to the control mechanism.

Optionally, the clamping mechanism of the magnetic trigger device, wherein, the connecting member includes a first rod and a second rod that is threadedly connected with the first rod; the first rod includes a first connecting part for connecting with the second crank, a second connecting part connected with the second rod, the inner wall of the second connecting part is provided with a first thread, the outer surface of the second rod is provided with a second thread adapted to the first thread, one end of the second rod is detachably connected with the first clamping part, and the other end of the second rod is connected with the first clamping part. Rod threaded connection.

Optionally, the clamping mechanism of the magnetic trigger device further includes: a guide assembly, the guide assembly includes a first guide piece and a second guide piece arranged in parallel, the first clamping piece is arranged between the first guide piece and the second guide piece; the first guide piece includes a first guide strip, the second guide piece includes a second guide strip, and the first guide strip is arranged opposite to the second guide strip; the first clamping piece includes grooves that are respectively adapted to the first guide strip and the second guide strip.

In the second aspect, a magnetic closure simulation device for a flap valve, including: the above-mentioned clamping mechanism of the magnetic trigger device.

Optionally, the magnetic closure simulation device for the flap valve further includes:

A workbench, including a drive mechanism for driving the workbench to rotate;

The magnetic pressure maintaining control mechanism includes a valve seat, a magnetic valve cover movably connected to one end of the valve seat, and a first magnet for repelling the magnetic valve cover; the clamping mechanism is fixed on the workbench, the valve seat is sandwiched between the first clamping part and the second clamping part, and the first magnet is fixed on the workbench on one side of the second clamping part;

The magnetic valve cover closing control mechanism includes a cylinder body, which is used to drive the lifting device for lifting the cylinder body; the lifting device and the valve seat are fixed on the same plane of the workbench; when the cylinder body is placed in the valve seat, the magnetic valve cover is in an open state; when the cylinder body is separated from the magnetic valve cover, the magnetic valve cover is in a closed state.

Optionally, the flap valve magnetic closure simulation device, wherein the valve seat includes: a cylinder body, a second magnet disposed inside the cylinder body, and a bottom cover, the second magnet is used to attract the magnetic valve cover; the bottom cover is detachably connected to the cylinder body, and a hole for pressure testing is provided on the bottom cover.

Optionally, the magnetic closure simulation device for a flap valve, wherein the magnetic valve cover includes: a valve cover body, a connecting arm fixed on the valve cover body for movably connecting with the open end of the valve seat, and a valve cover permanent magnet fixed on the valve cover body.

Optionally, the flap valve magnetic closure simulation device, wherein the bottom cover includes a bottom cover body for connecting a first step portion of the cylinder body and a second step portion distributed in steps with the first step portion, and the second step portion is arranged at an end of the first step portion away from the cylinder body.

Optionally, the magnetic closure simulation device for the flap valve, wherein, the magnetic closure simulation device for the flap valve further includes: an air supply mechanism, and the air supply mechanism is connected to the hole through a pipeline.

Beneficial effects: the embodiment of the present invention provides a clamping mechanism of a magnetic trigger device, comprising: a first clamping piece, a second clamping piece opposite to the first clamping piece, and a control mechanism for locking the first clamping piece, the first clamping piece is fixedly connected to the control mechanism. When the object needs to be fixed, the object to be fixed (such as a valve seat) can be firmly fixed between the first clamping part and the second clamping part by cooperating the first clamping part with the second clamping part and locking the first clamping part with the control mechanism. At the same time, the clamping mechanism has a simple structure and is easy to process.

Description of drawings

Fig. 1 is a perspective view of a clamping mechanism of a magnetic trigger device provided by an embodiment of the present invention;

Fig. 2 is an exploded view of the clamping mechanism provided by the embodiment of the present invention;

Fig. 3 is a perspective view of a magnetic closure simulation device for a flap valve provided by an embodiment of the present invention;

Fig. 4 is a partial structural diagram of the flap valve magnetic closing simulation device provided by the embodiment of the present invention;

Fig. 5 is a partial structural diagram of a flap valve magnetic closure simulation device from another perspective provided by the embodiment of the present invention;

Fig. 6 is an exploded view of the partial structure diagram of the flap valve magnetic closing simulation device provided by the embodiment of the present invention;

Figure 7 is an exploded view of the valve cover and magnetic valve seat provided by the embodiment of the present invention.

Detailed ways

The present invention provides a clamping mechanism of a magnetic trigger device and a magnetic closure simulation device for a flap valve. In order to make the purpose, technical solution and effect of the present invention clearer and more definite, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the wording "comprising" used in the description of the present invention refers to the presence of said 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 their groups. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Additionally, "connected" or "coupled" as used herein may include wireless connection or wireless coupling. The expression "and/or" used herein includes all or any elements and all combinations of one or more associated listed items.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention.

As shown in FIGS. 1 to 2 , an embodiment of the present invention provides a clamping mechanism of a magnetic trigger device, a first clamping part 1 , a second clamping part 2 opposite to the first clamping part 1 , and a control mechanism 3 for locking the first clamping part 1 , and the first clamping part 1 is fixedly connected to the control mechanism 3 .

In this embodiment, the second holding parts 2 is independent of each other with the first clamping parts 1, that is, the second holding parts can be fixed on the supporting parts (the subsequent workbench). 2 Cooperate, lock the first clip holding parts through the control agency, so that the fixation of the first clamping part of the first clamping part 1 and the second holding part 2 can be clamped and fixed.

In this embodiment, the first crank assembly 302 and the second crank 303 are linked by moving the handle, and then the connecting member 305 is driven to move.

For example, when the first clamping part is unlocked, the handle can be pulled outward (outward here refers to the direction away from the second clamping part) to drive the first crank assembly 302 to rotate outward around its hinged part with the base 301. After turning to a certain angle, the first crank assembly 302 drives the second crank 303 to move outward, and finally pulls the connecting part 305 to move outward (because the connecting part is fixedly connected to the first clamping part 1, the first clamping part 1 move outward), so that the first clamping part 1 is separated from the second clamping part 2 . It is easy to understand that when the first clamping part is locked, the handle can be pulled inward to drive the first crank assembly 302 to rotate inward around its hinged part with the base 301. When the rotation reaches a certain angle, the first crank assembly 302 drives the second crank 303 to move inward, and finally pushes the connecting part 305 to move inward.

In an implementation of this embodiment, the connecting member 305 includes a first rod 315 and a second rod 325, wherein the first rod 315 is threadedly connected to the second rod 325, one end of the first rod 315 is connected to the second crank 303, and a threaded connection is provided along the radial direction of the first rod, and threads are provided on the inner wall of the threaded connection; One end of the second rod 325 is detachably connected to the first clamping member 1 . During use, the distance between the first clamping part 1 and the second clamping part 2 can be adjusted by adjusting the connection distance between the second rod 325 and the first rod 315, such as rotating the second rod 2 to make a part of it screw 301 into (or unscrewed out) the first rod 1 to adjust its length, so as to realize the adjustment of the distance between the first clamping part 1 and the second clamping part 2. It can be realized that the same clamping device can be applied to pieces to be fixed in various sizes.

In an implementation manner of this embodiment, the clamping mechanism further includes a guiding mechanism 4 for guiding the first clamping member 1, the guiding mechanism 4 includes two guiding members 401, 402 arranged in parallel, guide rails (guide strips or guide grooves) can be provided on the guide members 401, 402, and a structure matching the guide rails can be provided on the first clamping member 1 at the same time. Exemplarily, if a guide strip is provided on the guide member, then a sliding groove is provided on the first clamping member, and the guide strip is adapted to the guide slide groove so that the first clamping member can slide along the wire bar. By arranging the guide mechanism, the first clamping part will not deviate when it moves, ensuring that the first clamping part and the second clamping part are facing and clamping.

Based on the same inventive concept, as shown in FIG. 3 , an embodiment of the present invention also provides a magnetic closure simulation device for a flap valve, which includes the above-mentioned clamping mechanism.

In this embodiment, the flap valve magnetic closure simulation device further includes: an outer shell 10 and a worktable 20 disposed inside the outer shell 10, a support 30 for fixing the workbench 20, a magnetic force pressure maintaining control mechanism 40 and a magnetic valve cover closing control mechanism 50 fixed on the surface of the workbench 20, a planar rotation drive mechanism 60 and a vertical flip drive mechanism 70 for driving the workbench 20 to rotate.

In this embodiment, with reference to FIGS. 4 to 5 , the magnetic pressure maintaining control mechanism 40 includes a valve seat 41, a magnetic valve cover 42 movably connected to one end of the valve seat 41, and a first magnet 43 for repelling the magnetic valve cover 42; the valve seat 41 is fixed on the workbench 20 through the clamping mechanism, and the first magnet 43 is fixed on the workbench on the side of the second clamping member 2; the magnetic valve cover closing control mechanism 50 includes a cylinder 51 for driving the cylinder. 51 lifting device 52; the lifting device 52 is fixed on the workbench 20, and the lifting device 52 is located on the same plane as the valve seat 41; when the cylinder 51 is located in the valve seat 41, the magnetic valve cover 42 is in an open state; when the cylinder 51 is separated from the magnetic valve cover 42, the magnetic valve cover 42 is in a closed state.

In this embodiment, the state of the workbench 20 can be changed through the driving of the planar rotation drive mechanism 60 and the vertical flip drive mechanism 70, thereby driving the state of the valve seat 41 arranged on the workbench 20 to change, and different states of the valve seat 41 can be simulated. Combined with the lifting and lowering of the cylinder, the closure between the valve seat and the magnetic valve cover under different states can be simulated.

As shown in FIG. 6 , in an implementation manner of this embodiment, the workbench 20 includes a first base 21 and a second base 22 , wherein the shape of the first base 21 may be a circle or other shapes.

Exemplarily, the shape of the first base 21 is circular, and the shape of the second base 22 is circular, which fits with the first base 21 . A through hole 210 is opened in the middle of the first base 21, the valve seat 41 passes through the through hole 210, and both ends are exposed on both sides of the first base 21, and one end of the valve seat 41 (connected with a magnetic valve cover) is fixed on the end surface of the first base 21 by a fixing member. The first magnet 43 is set facing 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 the magnetic valve cover and the first magnet are arranged directly to ensure that the magnetic valve cover will not be offset when it is closed under the action of the magnetic force. The lifting device 52 is arranged on one side of the valve seat.

In this embodiment, the planar rotation driving mechanism 60 includes a first gear 61, a second gear 62 and a first power device 63, the power device may be a motor, the first gear 61 meshes with the second gear 62, the second gear 62 is fixedly connected to the output end of the first power device 63; the first gear 61 is fixed on the end face of the circular base 21 away from the valve seat 41 (that is, the first gear 61 and the valve seat 41 are respectively arranged on two opposite end faces of the circular base 21), the second The base 22 is provided with a hole through which the output end of the power supply passes, the first power device 63 is fixed on the second base 22, and its output end is close to the first gear 61, that is to say, the first gear 61 and the second gear 62 are arranged in the space formed between the first base 21 and the second base 22. The rotation of the motor drives the second gear to rotate. After the second gear meshes with the first gear, it drives the first base 21 to rotate relative to the second base 22. That is to say, the planar rotation driving mechanism 60 can make the valve seat rotate around its central axis.

In this embodiment, the vertical turning drive mechanism 70 includes: a first transmission unit 71, a second transmission unit 72, and a second power device 73 for driving the first transmission unit 71 and the second transmission unit 72; the first transmission unit 71 and the second transmission unit 72 are respectively fixedly connected to the second base 22, and the first transmission unit 71 is connected to the output end of the second power device 73. Wherein, the first transmission unit 71 includes a rotating shaft with a bearing cooperating with the bearing, one end of the rotating shaft is matched with the bearing, and the other end is fixed on the second base 22, the second transmission unit 72 includes a bearing, 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 base 22, and the bearings are respectively fixed on the supports 30. The second power device 73 can be an electric device or a manual device. Exemplarily, the second power device 73 is a manual device, including a hand wheel 730 , turning the hand wheel 730 can cause the first base 21 and the second base 22 to flip vertically. Through the cooperation of the planar rotation driving mechanism 60 and the vertical turning driving mechanism 70 , situations such as vertical drilling, horizontal drilling, and drilling at an oblique angle can be simulated.

In an implementation manner of this embodiment, the clamping mechanism of the magnetic trigger device further includes: a displacement adjustment mechanism 80 for adjusting the distance between the first magnet 43 and the valve seat 41 . Wherein, the displacement adjustment mechanism 80 includes a pressure sensor (not shown), the pressure sensor is connected with the first magnet, the magnetic force between the first magnet 43 and the magnetic valve cover 42 can be detected by the pressure sensor, and the distance between the first magnet and the magnetic valve cover can be adjusted by adjusting the magnetic force between the magnetic valve cover 42 and the first magnet 43 under different conditions, and an appropriate distance can be selected therefrom.

Referring to FIG. 7 , in an implementation of this embodiment, the magnetic valve cover 42 includes: a valve cover body 421 , a connecting arm 422 fixed on the valve cover body 421 for movably connecting with the opening end of the valve seat 41 , and a valve cover permanent magnet 423 fixed on the valve cover body. Wherein, the connecting arm 423 may be an elastic piece, and by fixing one end of the elastic piece on the valve cover body 421, the other end is movably connected with one end of the valve seat.

In an implementation manner of this embodiment, the valve seat 41 includes: a barrel body 410 and a second magnet 420 disposed inside the barrel body 410 , and the second magnet 420 is used to attract the magnetic valve cover 42 .

The barrel body 410 is a cylindrical barrel with openings at both ends, and the material of the barrel body 410 can be metal, such as cast iron, steel, and the like. The second magnet 420 is a cylindrical magnet, and the cylindrical magnet 420 may be formed by splicing at least two tile-shaped magnets along the circumferential direction, for example, four tile-shaped magnets spliced along the circumferential direction, wherein the magnetization directions of the tile-shaped magnets may be the same or different, and the magnetization directions include an axial magnetization direction and a radial magnetization direction. In an implementation manner of this embodiment, the valve seat 41 further includes: a bottom cover 430 that is detachably connected to the barrel body 410 , and a hole 431 for pressure testing is provided on the bottom cover 430 .

In this embodiment, the bottom cover 430 is used to block the other end of the cylindrical body 410 (the end not connected to the magnetic valve cover). By setting the end cover 430 and the magnetic valve cover 42, the valve seat can be closed, that is, a closed space is formed inside the valve seat.

In this embodiment, the bottom cover 430 includes a bottom cover body 432 for connecting a first stepped portion 433 of the cylinder body and a second stepped portion 434 distributed in steps with the first stepped portion 433 , and the second stepped portion 434 is placed at an end of the first stepped portion 433 away from the cylinder body 410 . The outer surface of the first stepped portion 433 is provided with external threads, through which the connection with the barrel body can be realized. It is easy to understand that the inner surface of the same body is provided with internal threads that match the external threads on the outer surface of the first stepped portion 433 . After the first step 433 is threaded on the barrel body, the end of the barrel magnet 420 facing away from the magnetic valve cover is held against the first step 433 , and the second step 434 is closely attached to the end of the barrel body, that is to say, the diameter of the second step 434 is larger than the diameter of the first step 433 .

In this embodiment, the hole 431 provided on the bottom cover 430 for testing the sealing pressure is located at the center of the bottom cover 430, and the hole 431 can be connected to the air supply mechanism (not shown in the figure) through a pipeline to detect its sealing effect.

In summary, an embodiment of the present invention provides a clamping mechanism of a magnetic trigger device, which includes: a first clamping part, a second clamping part opposite to the first clamping part, and a control mechanism for locking the first clamping part, and the first clamping part is fixedly connected to the control mechanism. When the object needs to be fixed, the object to be fixed (such as a valve seat) can be firmly fixed between the first clamping part and the second clamping part by cooperating the first clamping part with the second clamping part and locking the first clamping part with the control mechanism. At the same time, the clamping mechanism has a simple structure and is easy to process.

It should be understood that the application of the present invention is not limited to the above examples, and those skilled in the art can make improvements or transformations according to the above descriptions, and all these improvements and transformations should belong to the protection scope of the appended claims of the present invention.

Claims (4)

1. A flap valve magnetic closure simulation device, characterized in that it comprises: The clamping mechanism includes a first clamping piece, a second clamping piece opposite to the first clamping piece, and a control mechanism for locking the first clamping piece, the first clamping piece is fixedly connected to the control mechanism; The workbench includes a drive mechanism for driving the workbench to rotate, so as to simulate vertical drilling, horizontal drilling, and drilling with different inclination angles; The magnetic pressure maintaining control mechanism includes a valve seat, a magnetic valve cover movably connected to one end of the valve seat, and a first magnet for repelling the magnetic valve cover; the clamping mechanism is fixed on the workbench, the valve seat is sandwiched between the first clamping part and the second clamping part, the first magnet is fixed on the workbench on one side of the second clamping part, and is arranged opposite to the magnetic valve cover; The valve seat includes a cylinder body, a second magnet and a bottom cover arranged inside the cylinder body for attracting the magnetic valve cover; The magnetic valve cover closing control mechanism includes a cylinder body, which is used to drive the lifting device for lifting the cylinder body; the lifting device and the valve seat are fixed on the same plane of the workbench; when the cylinder body is placed in the valve seat, the magnetic valve cover is in an open state; when the cylinder body is separated from the magnetic valve cover, the magnetic valve cover is in a closed state; The second magnet is used to attract the magnetic valve cover; the bottom cover is detachably connected to the barrel body, and a hole for pressure testing is provided at the center of the bottom cover, and the hole is connected to the air supply mechanism through a pipeline. 2. The flap valve magnetic closure simulation device according to claim 1, wherein the magnetic valve cover comprises: a valve cover body, a connecting arm fixed on the valve cover body for being movably connected with the open end of the valve seat, and a valve cover permanent magnet fixed on the valve cover body. 3. The magnetic closure simulation device for a flap valve according to claim 1, wherein the bottom cover comprises a bottom cover body for connecting the first step portion of the cylinder body and a second step portion distributed in steps with the first step portion, and the second step portion is arranged at an end of the first step portion away from the cylinder body. 4 . The magnetic closure simulation device for a flap valve according to claim 1 , further comprising: an air supply mechanism connected to the hole through a pipeline.