Microfluidic chip clamp device for reservoir rock gas and water percolation and manufacturing method

Abstract

The application discloses a micro-fluidic chip clamp device and a manufacturing method for reservoir rock gas and water seepage, and belongs to the technical field of micro-fluidic chip clamp devices. The micro-fluidic chip clamp device for reservoir rock gas and water seepage comprises a clamping seat, a clamping cover, a lock cover, a pushing mechanism and telescopic pipes. A placing groove is formed on the top surface of the clamping seat, and a micro-fluidic chip is placed in the placing groove. One end of the clamping seat is hinged to one end of the clamping cover, and the clamping cover is used for buckling the placing groove. The other end of the clamping seat and the other end of the clamping cover are detachably connected together by the lock cover. Telescopic pipes are installed on the clamping cover. One telescopic pipe is a discharge pipe, and at least one telescopic pipe is an input pipe. The telescopic pipes are elastic, and the bottom ends of the telescopic pipes can move in the Y direction relative to the clamping cover. The micro-fluidic chip clamp device and the manufacturing method for reservoir rock gas and water seepage solve the problem that the flexible joint is rubbed and damaged at the contact position with the micro-fluidic chip when the flexible joint is buckled and rotated in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of microfluidic chip use, and particularly relates to a microfluidic chip clamp device for reservoir rock gas and water percolation and a manufacturing method. BACKGROUND

[0002] Microfluidic technology is a reliable experimental method for visualizing the fluid percolation behavior and interface effect of reservoir rock at the pore scale, and has obvious advantages in revealing the micro oil displacement mechanism and non-wetting phase capillary trapping mechanism. In the research of gas-water interface evolution and gas trapping behavior at the pore scale of tight sandstone reservoir, scanning electron microscopy, casting thin section and nitrogen adsorption are used to comprehensively characterize the pore structure characteristics of tight sandstone, and the gas-water flow units of tight sandstone pore structure are divided, and different complexity of pore scale gas-water microflow unit structure is extracted. Based on the microflow unit structure, the visual microfluidic chip physical model representing different microflow unit geometries is designed and manufactured by using microfluidic chip etching process, mainly including single throat model, continuous variable throat model, double hole model and complex pore network model, which provides samples for the visualized experimental observation of pore scale micro gas-water interface structure evolution. That is, the pore structure characteristics of tight sandstone are obtained by analysis, and the microfluidic chip is used to simulate the pore structure characteristics of tight sandstone to observe the performance by simulating the pore structure characteristics of tight sandstone.

[0003] When using microfluidic technology to carry out visualized experiment of micro gas-water interface structure evolution at the pore scale, chip clamp device is needed to fix microfluidic chip and connect the whole displacement pipeline to realize fluid supply for microfluidic chip.

[0004] A hard microfluidic chip clamp and a hard microfluidic chip clamp assembly are disclosed in a Chinese patent with application number CN202220562532.4. The hard microfluidic chip clamp includes a first clamp plate, a second clamp plate and a flexible joint. The first clamp plate has a first locking portion formed thereon, and the first locking portion is provided with a first lock piece; the second clamp plate is arranged on the first clamp plate and forms an accommodating space with the first clamp plate, the second clamp plate has a second locking portion formed thereon, and the second locking portion is provided with a second lock piece, the second lock piece cooperates with the first lock piece to lock the first clamp plate and the second clamp plate, and a plurality of joint holes are formed through the second clamp plate; the flexible joint is provided with a through hole in the axial direction, and the flexible joint is detachably arranged in the joint hole, and the through hole corresponds to the sample inlet and outlet hole on the hard microfluidic chip one by one.

[0005] The hard micro-fluidic chip clamp can position and clamp the micro-fluidic chip, but still has the following defects: the first clamping plate and the second clamping plate are hinged, and when buckling, the flexible joint rotates together, which inevitably causes relative friction when the flexible joint presses the micro-fluidic chip, and the position where the flexible joint contacts the micro-fluidic chip is prone to be damaged by friction, and the position where the flexible joint contacts the micro-fluidic chip is prone to leakage. SUMMARY

[0006] The present application provides a micro-fluidic chip clamp device for reservoir rock gas and water seepage and a manufacturing method, which solves the problem of friction damage of the flexible joint at the contact position with the micro-fluidic chip caused by rotation of the flexible joint when buckling.

[0007] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0008] The present application first discloses a micro-fluidic chip clamp device for reservoir rock gas and water seepage, comprising: a clamping seat, a clamping cover, a lock cover, a pushing mechanism and a telescopic pipe; the top surface of the clamping seat is recessed to form a placing groove, and the micro-fluidic chip is placed in the placing groove; one end of the clamping seat is hinged to one end of the clamping cover, and the clamping cover is used to buckle the placing groove; the other end of the clamping seat and the other end of the clamping cover are detachably connected together by the lock cover; the telescopic pipe is installed on the clamping cover, one telescopic pipe is a discharge pipe, and at least one telescopic pipe is an input pipe; the telescopic pipe has elasticity, and the bottom end of the telescopic pipe can move in the Y direction relative to the clamping cover, and can keep the telescopic pipe from contacting the micro-fluidic chip in the placing groove under the elasticity of the telescopic pipe itself; the pushing mechanism is installed on the clamping cover, and the pushing mechanism is used to press the bottom end of the telescopic pipe on the micro-fluidic chip, and align with the input port or the output port on the micro-fluidic chip.

[0009] Preferably, the pushing mechanism comprises: a pushing execution part and a return spring, the pushing execution part can move in the X direction relative to the clamping cover, one end of the pushing execution part is used to push the telescopic pipe, the other end of the pushing execution part is used to press the bottom end of the telescopic pipe on the micro-fluidic chip after being pushed by the lock cover, and the return spring is installed between the pushing execution part and the clamping cover, and the return spring is used to keep the pushing execution part away from the telescopic pipe.

[0010] Preferably, the bottom end of the telescopic pipe forms a first pushing surface, the side of the first pushing surface close to the pushing execution part is inclined downward, a second pushing surface is formed on the pushing execution part, the second pushing surface is parallel to the first pushing surface, and the second pushing surface is used to press down the first pushing surface.

[0011] Preferably, the telescopic tube comprises: a first curved section, a second curved section, a telescopic section, an extension section, a mounting ring and a pressing ring, one end of the extension section is located outside the clamping cover, the other end of the extension section is connected to one end of the first curved section, the first curved section is connected to the second curved section through the telescopic section, the mounting ring is mounted at the first curved section, the mounting ring is mounted on the inner wall of the clamping cover, the pressing ring is mounted at the second curved section, the pressing ring moves in the Y direction under the guidance of the clamping cover, and the top surface of the pressing ring forms a first pressing surface.

[0012] Preferably, the bottom of the pressing ring is provided with a sealing ring, and the sealing ring is used to be pressed on the microfluidic chip.

[0013] Preferably, the clamping cover comprises: a cover body and a mounting cover, the cover body is provided with an observation window for observing the microfluidic chip, one end of the cover body is hingedly connected with the clamping seat, the other end of the cover body is used for detachable connection with the lock cover, the top surface of the cover body is recessed to form a mounting groove, the inner bottom surface of the mounting groove is recessed to form a communication hole, the communication hole guides the movement of the pressing ring in the Y direction, the telescopic tube is mounted in the mounting groove, the mounting groove is buckled by the mounting cover, and the mounting cover is connected with the cover body through a screw.

[0014] Preferably, the top surface of the cover body is recessed to form a containing groove, one end of the pressing execution part is located in the mounting groove, the other end of the pressing execution part is located in the containing groove, the inner wall of the containing groove guides the movement of the pressing execution part in the X direction, and the containing groove is provided with a reset spring.

[0015] Preferably, the lock cover is buckled outside one end of the clamping cover and the clamping seat, and the lock cover is snap-fitted with the clamping cover.

[0016] Preferably, corner positioning blocks are mounted at each corner of the placing groove, a pushing spring is mounted between the corner positioning blocks and the clamping seat, the pushing spring is used to make the corner positioning blocks have a tendency to move into the placing groove, the corner positioning blocks are used to surround the corners of the microfluidic chip, positioning columns are mounted on the corner positioning blocks, and the positioning columns extend into the positioning holes provided in the clamping cover when the corner positioning blocks clamp the microfluidic chip.

[0017] The application also discloses a manufacturing method of the microfluidic chip clamp device, which is executed according to the following steps: S1, manufacturing the clamping seat, the clamping cover, the lock cover, the pressing mechanism and the telescopic tube; the top surface of the clamping seat is recessed to form a placing groove, the placing groove is used for placing the microfluidic chip, one end of the clamping seat is provided with a hinge base for hingedly connecting with the cover body, and the other end of the clamping seat is provided with a buckling base for buckling the lock cover; the clamping cover is provided with an observation window, the clamping cover is provided with a mounting base for mounting the telescopic tube and the pressing mechanism, and the clamping cover is provided with a buckling base for buckling the lock cover; S2, mounting the telescopic tube and the pressing mechanism on the clamping cover, the telescopic tube can move in the Y direction relative to the clamping cover, and the pressing mechanism can press the bottom end of the telescopic tube to the microfluidic chip located in the placing groove; and S3, hingedly connecting one end of the clamping cover with the clamping seat, the clamping cover being provided with the telescopic tube and the pressing mechanism.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] In order to avoid the sliding of the bottom end of the telescopic tube relative to the micro-fluidic chip when the clamping cover rotates relative to the clamping seat and the micro-fluidic chip, and to avoid the abrasion of the bottom end of the telescopic tube due to the sliding, the telescopic tube is provided with elasticity, and under the elasticity, the telescopic tube can be kept in the state of being located in the clamping cover, so that the telescopic tube will not be damaged due to friction during the rotation of the clamping cover. In order to ensure that the telescopic tube is used for passing gas or liquid and subsequently entering the micro-fluidic chip, a pushing mechanism is arranged to press the bottom end of the telescopic tube against the micro-fluidic chip, thereby prolonging the service life of the telescopic tube and ensuring that the telescopic tube can guide the gas and liquid.

[0020] Other advantages, objects and features of the present application will be apparent from the following description, and will be understood by those skilled in the art upon reading and understanding the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the micro-fluidic chip clamp device.

[0022] Figure 2 It is a structural schematic view of the micro-fluidic chip clamp device. Figure 1 It is a structural schematic view of the micro-fluidic chip clamp device.

[0023] Figure 3 It is a structural schematic view of the micro-fluidic chip clamp device. Figure 2 It is a structural schematic view of the micro-fluidic chip clamp device.

[0024] Figure 4 It is a structural schematic view of the micro-fluidic chip clamp device. Figure 2 It is a structural schematic view of the micro-fluidic chip clamp device.

[0025] Figure 5 It is a structural schematic view of the micro-fluidic chip clamp device. Figure 4 It is a structural schematic view of the micro-fluidic chip clamp device.

[0026] Figure 6 It is a structural schematic view of the micro-fluidic chip clamp device.

[0027] Figure 7 It is a structural schematic view of the micro-fluidic chip clamp device.

[0028] Figure 8 It is a structural schematic view of the micro-fluidic chip clamp device.

[0029] Figure 9 It is a structural schematic view of the micro-fluidic chip clamp device.

[0030] Figure 10 It is a structural schematic view of the micro-fluidic chip clamp device.

[0031] Reference numerals: Clamping seat 1, Clamping cover 2, Cover body 21, Mounting cover 22, Receiving groove 23, Mounting groove 24, Locking cover 3, Pushing mechanism 4, Second pushing surface 40, Pushing actuator 41, Return spring 42, Anti-detachment block 43, Telescopic tube 5, First pushing surface 50, First bending section 51, Second bending section 52, Telescopic section 53, Extension section 54, Mounting ring 55, Lowering ring 56, Sealing ring 57, Corner positioning block 61, Pushing spring 62, Positioning post 63. Detailed Implementation

[0032] To make the technical means, creative features, objectives, and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0033] Example 1:

[0034] like Figures 1 to 10 As shown, this embodiment discloses a microfluidic chip clamping device for gas-water seepage in reservoir rocks, including: a clamping seat 1, a clamping cover 2, a locking cover 3, a pushing mechanism 4, and a telescopic tube 5; the top surface of the clamping seat 1 is recessed to form a placement groove, in which a microfluidic chip is placed; one end of the clamping seat 1 is hinged to one end of the clamping cover 2, the clamping cover 2 is used to fasten the placement groove, and the other end of the clamping seat 1 and the other end of the clamping cover 2 are detachably connected together by the locking cover 3; a telescopic tube 5 is installed on the clamping cover 2, one telescopic tube 5 is a discharge tube, and at least one telescopic tube 5 is an input tube, the telescopic tube 5 is elastic, and the bottom end of the telescopic tube 5 can move relative to the clamping cover 2 in the Y direction, and under the elastic force of the telescopic tube 5 itself, it can keep the telescopic tube 5 from contacting the microfluidic chip located in the placement groove; a pushing mechanism 4 is installed on the clamping cover 2, the pushing mechanism 4 is used to press the bottom end of the telescopic tube 5 onto the microfluidic chip, and align it with the input or output port on the microfluidic chip.

[0035] The pushing mechanism 4 includes a pushing actuator 41 and a return spring 42. The pushing actuator 41 can move relative to the clamping cover 2 in the X direction. One end of the pushing actuator 41 is used to push the telescopic tube 5, and the other end of the pushing actuator 41 is used to press the bottom end of the telescopic tube 5 onto the microfluidic chip after being pushed by the locking cover 3. A return spring 42 is installed between the pushing actuator 41 and the clamping cover 2. The return spring 42 is used to keep the pushing actuator 41 away from the telescopic tube 5.

[0036] The bottom end of the telescopic tube 5 is formed with a first pushing surface 50, the first pushing surface 50 is inclined downward near the side of the pushing execution part 41, the pushing execution part 41 is formed with a second pushing surface 40, the second pushing surface 40 is parallel to the first pushing surface 50, and the second pushing surface 40 is used to press down the first pushing surface 50. The movement of the pushing execution part 41 in the X direction is realized, and the downward movement in the Y direction can be realized by pressing down the first pushing surface 50 by the second pushing surface 40.

[0037] The telescopic tube 5 includes a first curved section 51, a second curved section 52, a telescopic section 53, an extension section 54, a mounting ring 55, and a pressing ring 56. One end of the extension section 54 is located outside the clamping cover 2, the other end of the extension section 54 is connected to one end of the first curved section 51, the first curved section 51 is connected to the second curved section 52 through the telescopic section 53, the mounting ring 55 is mounted at the first curved section 51, the mounting ring 55 is mounted on the inner wall of the clamping cover 2, the pressing ring 56 is mounted at the second curved section 52, the pressing ring 56 moves in the Y direction under the guidance of the clamping cover 2, and the top surface of the pressing ring 56 forms the first pushing surface 50. The telescopic tube 5 adopts a hollow spring structure, which ensures the communication performance of gas and liquid, the mounting ring 55 is cast at the first curved section 51, which realizes the positioning and mounting of the clamping cover 2, the pressing ring 56 is cast at the second curved section 52, which realizes the hard pressing basis of the pushing execution part 41 when extruded, that is, the pressing ring 56. The telescopic section 53 realizes the elasticity of the telescopic tube 5.

[0038] The bottom of the pressing ring 56 is mounted with a sealing ring 57, which is used to be pressed on the microfluidic chip. The sealing performance of the telescopic tube 5 when pressing the microfluidic chip at the bottom end is ensured.

[0039] The clamping cover 2 includes a cover body 21 and a mounting cover 22. The cover body 21 is provided with an observation window for observing the microfluidic chip. One end of the cover body 21 is hinged to the clamping seat 1, and the other end of the cover body 21 is used for detachable connection with the lock cover 3. The top surface of the cover body 21 is recessed to form a mounting groove 24, and the inner bottom surface of the mounting groove 24 is recessed to form a communication hole. The communication hole guides the movement of the pressing ring 56 in the Y direction. The telescopic tube 5 is mounted in the mounting groove 24, and the mounting groove 24 is buckled by the mounting cover 22. The mounting cover 22 and the cover body 21 are connected by screws. The mounting cover 22 and the cover body 21 are separately arranged, which facilitates the installation of the telescopic tube 5 and the pressing mechanism 4.

[0040] The top surface of the cover body 21 is recessed to form a containing groove 23. One end of the pushing execution part 41 is located in the mounting groove 24, and the other end of the pushing execution part 41 is located in the containing groove 23. The inner wall of the containing groove 23 guides the movement of the pushing execution part 41 in the X direction. The containing groove 23 is provided with a reset spring 42.

[0041] The lock cover 3 is buckled outside one end of the clamping cover 2 and the clamping seat 1, and the lock cover 3 is buckled with the clamping cover 2. The state that the lock cover 3 locks the clamping cover 2 and the clamping seat 1 buckled together is realized.

[0042] In order to avoid that the microfluidic chip is pressed and damaged by the clamping cover 2 when the microfluidic chip is not installed in place, corner positioning blocks 61 are installed at each corner of the placing groove, a pushing spring 62 is installed between the corner positioning blocks 61 and the clamping seat 1, the pushing spring 62 is used to make the corner positioning blocks 61 have a tendency to move into the placing groove, the corner positioning blocks 61 are used to surround the corners of the microfluidic chip, positioning columns 63 are installed on the corner positioning blocks 61, and the positioning columns 63 extend into the positioning holes of the clamping cover 2 when the corner positioning blocks 61 clamp the microfluidic chip. It is realized that the positioning columns 63 of the microfluidic chip can be aligned with the positioning holes on the clamping cover 2 only when the microfluidic chip is installed into the placing groove, and the protection of the microfluidic chip is improved.

[0043] The design idea of the present application is as follows. Firstly, in order to avoid the sliding of the bottom end of the telescopic tube 5 relative to the microfluidic chip when the clamping cover 2 rotates relative to the clamping seat 1 and the microfluidic chip, and to avoid the abrasion of the bottom end of the telescopic tube 5 due to sliding, the telescopic tube 5 is provided with elasticity, and under the elasticity of the telescopic tube 5, the telescopic tube 5 can maintain the state of being located in the clamping cover 2, so that during the rotation of the clamping cover 2, the telescopic tube 5 will not be damaged due to friction. In order to ensure that the telescopic tube 5 can pass gas or liquid and then enter the microfluidic chip, a pushing mechanism 4 is provided to press the bottom end of the telescopic tube 5 tightly against the microfluidic chip, thereby ensuring the flow. Then, in order to keep the clamping cover 2 and the clamping seat 1 buckled together, a lock cover 3 is provided to buckle the clamping seat 1 and the clamping seat 1 together to maintain the buckled state. Further, the pushing execution part 41 of the pushing mechanism 4 can move in the X direction, and the return spring 42 is connected with the pushing execution part 41 and keeps the pushing execution part 41 away from the bottom end of the telescopic tube 5 under the elastic force of the return spring 42, so as to ensure that the telescopic tube 5 can be retracted into the clamping cover 2 under the elastic force of the telescopic tube 5 itself. When the lock cover 3 is buckled, the pushing execution part 41 can be pressed against the bottom end of the telescopic tube 5, so as to press the bottom end of the telescopic tube 5 tightly against the microfluidic chip, thereby facilitating the access or exit of gas or liquid, and realizing that when the lock cover 3 is buckled, the pushing execution part 41 is automatically operated. That is, the action of buckling the lock cover 3 can realize two functions: one is the function of the lock cover 3 itself, which maintains the buckled state of the clamping cover 2 and the clamping seat 1; the other is to push the pushing execution part 41 to press the bottom end of the telescopic tube 5, thereby pressing the bottom end of the telescopic tube 5 tightly against the microfluidic chip, which can save the operation steps and improve the operation efficiency. Further, in order to realize the automatic elastic function of the telescopic tube 5, the telescopic tube 5 is made of a metal tube with a structure similar to a hollow spring, so as to ensure the elasticity of the telescopic tube 5 itself. In order to facilitate the pressing of the pushing execution part 41, a pressing ring 56 is provided, which is formed by pouring hard plastic in the second curved section 52 to ensure a certain hardness, so that the pressing function of the pushing execution part 41 on the pressing ring 56 can be smoothly performed. Furthermore, the mounting ring 55 is formed by pouring hard plastic in the first curved section 51, so that the middle part of the telescopic tube 5 can also be positioned on the clamping cover 2. The mounting ring 55 is provided with a through hole through which a screw passes, so as to be conveniently mounted on the inner wall of the mounting cover 22.Finally, because the clamping cover 2 has a large clamping force when it is buckled, if the microfluidic chip is not placed in the placement groove in a standard manner and the corner is raised, the microfluidic chip will be damaged when the clamping cover 2 is buckled. Therefore, the corner positioning block 61 and the positioning column 63 are arranged, so that when the microfluidic chip is placed in the placement groove in a standard manner, the microfluidic chip can press the corner positioning block 61 to move, so that the positioning column 63 can be aligned with the positioning hole on the clamping cover 2. If the microfluidic chip is not placed in a standard manner, the positioning column 63 deviates from the positioning hole under the elastic force of the push spring 62, so that the clamping cover 2 is blocked from being buckled to the clamping seat 1, thereby avoiding damage to the microfluidic chip when the clamping cover 2 is buckled, protecting the microfluidic chip and prolonging the service life of the microfluidic chip.

[0044] Embodiment 2:

[0045] Based on Embodiment 1, the present embodiment discloses a manufacturing method of the microfluidic chip clamp device.

[0046] The present embodiment discloses a manufacturing method of a microfluidic chip clamp device, which is executed according to the following steps: S1, manufacturing the clamping seat 1, the clamping cover 2, the lock cover 3, the push mechanism 4 and the telescopic tube 5; the top surface of the clamping seat 1 is recessed to form a placement groove, the placement groove is used for placing the microfluidic chip, one end of the clamping seat 1 is arranged with a hinge base for the hinge cover, and the other end of the clamping seat 1 is arranged with a buckling base for the lock cover 3; the clamping cover 2 is arranged with an observation window, the clamping cover 2 is arranged with a mounting base for the push mechanism 4 and the telescopic tube 5, and the clamping cover 2 is arranged with a buckling base for the lock cover 3; S2, installing the push mechanism 4 and the telescopic tube 5 on the clamping cover 2, the telescopic tube 5 can move in the Y direction relative to the clamping cover 2, and the push mechanism 4 can press the bottom end of the telescopic tube 5 to the microfluidic chip in the placement groove; S3, hinging one end of the clamping cover 2 with the push mechanism 4 and the telescopic tube 5 to the clamping seat 1.

[0047] Step S2 includes the following steps:

[0048] S21, installing the mounting ring 55 on the telescopic tube 5 on the mounting cover 22 in the clamping cover 2 through a screw;

[0049] S22, passing the push execution part 41 through the reset spring 42, and welding the anti-dropping block 43 at the end of the push execution part 41;

[0050] S23, putting the push execution part 41, the reset spring 42 and the anti-dropping block 43 into the mounting groove 24 and the containing groove 23 together, and the reset spring 42 and the anti-dropping block 43 are only located in the containing groove 23;

[0051] S24, buckling the mounting cover 22 for installing the telescopic tube 5 on the cover body 21 in the clamping cover 2;

[0052] S25, the mounting cover 22 is positioned on the cover plate body by using screws.

[0053] Thus, the mounting and pressing mechanism 4 and the telescopic tube 5 are installed, and the mounting cover 22 is positioned and presses the execution part 41, the reset spring 42 and the anti-dropping block 43, thereby improving the installation efficiency.

[0054] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A microfluidic chip clamp device for reservoir rock gas waterflood, characterized in that, The utility model relates to a microfluidic chip clamping device, including: Clamping seat (1), clamping cover (2), lock cover (3), push mechanism (4) and telescopic pipe (5); The top surface of the clamping seat (1) is recessed to form a placing groove, and the microfluidic chip is placed in the placing groove; One end of the clamping seat (1) is hinged to one end of the clamping cover (2), the clamping cover (2) is used for buckling the placing groove, and the other end of the clamping seat (1) and the other end of the clamping cover (2) are detachably connected together by the lock cover (3); The telescopic pipe (5) is installed on the clamping cover (2), one telescopic pipe (5) is a discharge pipe, and at least one telescopic pipe (5) is an input pipe, the telescopic pipe (5) is elastic, the bottom end of the telescopic pipe (5) can move in the Y direction relative to the clamping cover (2), and the telescopic pipe (5) can be kept from contacting the microfluidic chip located in the placing groove under the elasticity of the telescopic pipe (5) itself; The push mechanism (4) is installed on the clamping cover (2), the push mechanism (4) is used for pressing the bottom end of the telescopic pipe (5) on the microfluidic chip and aligning with the input port or the output port on the microfluidic chip; The push mechanism (4) includes a push execution part (41) and a reset spring (42), the push execution part (41) can move in the X direction relative to the clamping cover (2), one end of the push execution part (41) is used for pushing the telescopic pipe (5), the other end of the push execution part (41) is used for pressing the bottom end of the telescopic pipe (5) on the microfluidic chip after being pushed by the lock cover (3), the reset spring (42) is installed between the push execution part (41) and the clamping cover (2), and the reset spring (42) is used for keeping the push execution part (41) away from the telescopic pipe (5); The bottom end of the telescopic pipe (5) forms a first push surface (50), the side close to the push execution part (41) of the first push surface (50) is inclined downward, a second push surface (40) is formed on the push execution part (41), the second push surface (40) is parallel to the first push surface (50), and the second push surface (40) is used for pressing down the first push surface (50); The telescopic pipe (5) includes a first curved section (51), a second curved section (52), a telescopic section (53), an extension section (54), a mounting ring (55) and a pressing ring (56), one end of the extension section (54) is located outside the clamping cover (2), the other end of the extension section (54) is communicated to one end of the first curved section (51), the first curved section (51) is communicated to the second curved section (52) through the telescopic section (53), the mounting ring (55) is installed at the first curved section (51), the mounting ring (55) is installed on the inner wall of the clamping cover (2), the pressing ring (56) is installed at the second curved section (52), the pressing ring (56) moves in the Y direction under the guidance of the clamping cover (2), and the top surface of the pressing ring (56) forms the first push surface (50); The bottom of the pressing ring (56) is provided with a sealing ring (57), and the sealing ring (57) is used for being pressed on the microfluidic chip.

2. The microfluidic chip cartridge device for reservoir rock gas waterflood according to claim 1, wherein, The clamping cover (2) comprises a cover body (21) and a mounting cover (22), the cover body (21) is provided with an observation window for observing the micro-fluidic chip, one end of the cover body (21) is hingedly connected with the clamping seat (1), the other end of the cover body (21) is used for detachably connecting with the lock cover (3), the top surface of the cover body (21) is recessed to form a mounting groove (24), the inner bottom surface of the mounting groove (24) is recessed to form a communication hole, the communication hole guides the movement of the lower pressing ring (56) in the Y direction, the mounting groove (24) is provided with the telescopic tube (5), the mounting groove (24) is buckled by the mounting cover (22), and the mounting cover (22) is connected with the cover body (21) by a screw.

3. The microfluidic chip cartridge device for reservoir rock gas waterflood according to claim 2, wherein, The top surface of the cover body (21) is recessed to form a containing groove (23), one end of the pushing execution part (41) is located in the mounting groove (24), the other end of the pushing execution part (41) is located in the containing groove (23), the inner wall of the containing groove (23) guides the movement of the pushing execution part (41) in the X direction, and the containing groove (23) is provided with the reset spring (42).

4. The microfluidic chip clamp apparatus according to any one of claims 1 to 3, wherein The lock cover (3) is buckled outside one end of the clamping cover (2) and the clamping seat (1), and the lock cover (3) is snap-fitted with the clamping cover (2).

5. The microfluidic chip cartridge device for reservoir rock gas and water percolation of any one of claims 1 to 3, wherein, The corner positioning block (61) is arranged at each corner of the placing groove, the pushing spring (62) is arranged between the corner positioning block (61) and the clamping seat (1), the pushing spring (62) is used for enabling the corner positioning block (61) to have a tendency of moving into the placing groove, the corner positioning block (61) is used for surrounding the corner of the micro-fluidic chip, the positioning column (63) is arranged on the corner positioning block (61), and the positioning column (63) extends into the positioning hole of the clamping cover (2) when the corner positioning block (61) clamps the micro-fluidic chip.

6. A method of manufacturing a microfluidic chip clamp device, characterized by, The micro-fluidic chip clamp device manufacturing method is based on the micro-fluidic chip clamp device for reservoir rock gas and water seepage as claimed in any one of claims 1 to 5; The micro-fluidic chip clamp device manufacturing method is executed according to the following steps: S1, the clamping seat (1), the clamping cover (2), the lock cover (3), the pushing mechanism (4) and the telescopic tube (5) are made; the top surface of the clamping seat (1) is recessed to form a placing groove, the placing groove is used for placing the micro-fluidic chip, one end of the clamping seat (1) is provided with a hinge base for hingedly connecting with the clamping cover, and the other end of the clamping seat (1) is provided with a buckling base for buckling the lock cover (3); the clamping cover (2) is provided with an observation window, the clamping cover (2) is provided with a mounting base for mounting the pushing mechanism (4) and the telescopic tube (5), and the clamping cover (2) is provided with a buckling base for buckling the lock cover (3); S2, the pushing mechanism (4) and the telescopic tube (5) are mounted on the clamping cover (2), the telescopic tube (5) can move in the Y direction relative to the clamping cover (2), and the pushing mechanism (4) can press the bottom end of the telescopic tube (5) to the micro-fluidic chip in the placing groove; S3, one end of the clamping cover (2) provided with the pushing mechanism (4) and the telescopic tube (5) is hingedly connected with the clamping seat (1).

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