RFID underground plugging device with anti-vibration structure

Abstract

The invention discloses an RFID underground leaking stoppage device with an anti-vibration structure, which comprises a drill cylinder and a first cavity, a second cavity is arranged in the first cavity, and the second cavity is slidably connected in the first cavity; the horizontal anti-vibration mechanism adopts a splayed design and a combination of a hydraulic damping rod and a second supporting spring, so that vibration and impact force from all directions can be more effectively dispersed and absorbed, particularly, the performance is excellent in a non-orthogonal direction, the vibration resistance of the device is remarkably improved, and the service life of the device is prolonged. The device can stably work in an underground environment, internal key components are protected from vibration damage, it is guaranteed that an RFID system can accurately read and transmit label information, and damage of vertical vibration to an RFID antenna and a reader-writer is avoided through a first supporting spring; through the splayed design of the horizontal anti-vibration mechanism, the size of the cavity is not increased while the damping effect is improved, and the splayed damping structure is relatively simple in design and easy to maintain and replace.

Description

Technical Field

[0001] The invention relates to the technical field of underground leak plugging equipment, in particular to an RFID underground leak plugging device with an anti-vibration structure. Background Art

[0002] RFID downhole plugging technology is an underground plugging solution that combines wireless radio frequency identification technology. This technology achieves real-time monitoring and management of the underground environment and equipment by setting RFID sensors and RFID tags at key locations underground. In RFID downhole plugging technology, the RFID system is mainly composed of electronic tags, readers and antennas. Electronic tags are installed on equipment and locations that need to be monitored. They can communicate with readers and writers wirelessly. The readers and writers are responsible for reading the information in the electronic tags and sending this information to the ground monitoring center for processing and analysis.

[0003] Most of the existing RFID downhole plugging devices with anti-vibration structures adopt the method of adding springs and limit rods perpendicular to the central axis of the drill barrel in the drill barrel to reduce shock in the horizontal direction. The support and shock absorption effect of this cross-shaped shock-absorbing structure in non-orthogonal directions may be weak. At the same time, the cross-shaped shock-absorbing structure may take up more space because it requires a larger support area. At the same time, the design of limit rods and slide grooves also makes the structure more complicated and easier to damage, which greatly reduces the service life of the equipment. Therefore, an RFID downhole plugging device with an anti-vibration structure is provided to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problems raised by the above-mentioned background technology and to provide an RFID downhole leak plugging device with an anti-vibration structure, which has the advantages of higher stability, higher space utilization and convenient maintenance in complex and changeable vibration environments, thereby solving the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an RFID downhole plugging device with an anti-vibration structure, comprising: a drill pipe and a first cavity, a second cavity is arranged inside the first cavity, the second cavity is slidably connected inside the first cavity, a first supporting spring is fixedly connected between the first cavity and the second cavity, a third cavity is arranged inside the second cavity, and a plurality of groups of horizontal anti-vibration mechanisms are fixedly connected inside the second cavity; The horizontal anti-vibration mechanism includes a C-shaped fixed seat, two groups of first rotating fixed rings are rotatably connected on the inner side of the C-shaped fixed seat, a hydraulic damping rod is fixedly connected to the side of the first rotating fixed ring, a second rotating fixed ring is fixedly connected to the movable end of the hydraulic damping rod, a second supporting spring is sleeved on the outer side of the hydraulic damping rod, a screw is arranged on the inner side of the second rotating fixed ring, and a nut is threadedly connected under the screw.

[0006] As a further solution of the present invention: a fixing ring is fixedly connected to the outside of the third cavity, and a fixing through hole is opened on the inside of the fixing ring.

[0007] As a further solution of the present invention: a third cavity is arranged inside the second cavity, and a reader / writer and an RFID antenna are fixedly connected inside the third cavity.

[0008] As a further solution of the present invention: a PLC control panel and a hydraulic cylinder are fixedly connected inside the drill barrel, a telescopic rod is connected to the hydraulic cylinder, a valve plate is fixedly connected to the movable end of the telescopic rod, and a vertical valve is arranged inside the drill barrel.

[0009] As a further solution of the present invention: the second cavity and the third cavity are both hollow annular structures.

[0010] As a further solution of the present invention: a circle of grooves is provided on the outer side of the fixing ring, and fixing through holes that penetrate the fixing ring and are located correspondingly above and below the groove are provided, and the second rotating fixing ring is arranged inside the groove, and the screw rod sequentially penetrates the fixing through hole above the fixing ring, the second rotating fixing ring and the fixing through hole below the fixing ring and is threadedly connected to the nut, so that the second rotating fixing ring is rotatably connected to the fixing ring.

[0011] As a further solution of the present invention: the reader / writer is signal-connected to the RFID antenna.

[0012] As a further solution of the present invention: a side opening adapted to the valve plate is provided on the side wall of the drill tube, and the valve plate is used to open and close the side opening.

[0013] As a further solution of the present invention: the reader / writer signal is connected to a PLC control board, and the PLC control board signal is connected to a hydraulic cylinder and a vertical valve.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts an eight-shaped design and a combination of a hydraulic damping rod and a second support spring through a horizontal anti-vibration mechanism, which can more effectively disperse and absorb vibrations and impact forces from all directions, especially in non-orthogonal directions, significantly improving the vibration resistance of the device, enabling the device to work stably in an underground environment, protecting internal key components from vibration damage, ensuring that the RFID system can accurately read and transmit tag information, and ensuring the accuracy and reliability of the data.

[0015] 2. In the present invention, effective shock absorption in the vertical direction is achieved through the first supporting spring between the first cavity and the second cavity, thereby avoiding damage to the RFID antenna and the reader caused by vertical vibration.

[0016] 3. The figure-eight design of the horizontal anti-vibration mechanism in the present invention can more effectively utilize limited space, improve the shock absorption effect without increasing the volume of the cavity. This compact design is particularly important in the underground environment, and can minimize the footprint of the device, improve the flexibility and efficiency of underground operations, and the design of the figure-eight shock-absorbing structure is relatively simple and easy to maintain and replace. When the shock-absorbing element needs to be repaired or replaced, it can be disassembled and installed more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the telescopic rod in the present invention; Figure 3 is a schematic structural diagram of the first support spring in the present invention; Figure 4 It is a structural schematic diagram of the reader / writer and the RFID antenna in the present invention; Figure 5 It is a structural schematic diagram of the horizontal anti-vibration mechanism in the present invention.

[0018] In the figure: 1. first cavity; 2. second cavity; 3. PLC control board; 4. hydraulic cylinder; 5. telescopic rod; 6. valve plate; 7. vertical valve; 8. first supporting spring; 9. third cavity; 10. fixing collar; 11. fixing through hole; 12. horizontal anti-vibration mechanism; 121. C-type fixing seat; 122. first rotating fixing ring; 123. hydraulic damping rod; 124. second supporting spring; 125. second rotating fixing ring; 126. screw; 127. nut; 13. reader / writer; 14. RFID antenna; 15. drill barrel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0021] Reference Figures 1 to 5 , the present invention provides the following technical solutions: Embodiment 1: An RFID downhole plugging device with an anti-vibration structure comprises: a drill tube 15 and a first cavity 1, a second cavity 2 is arranged inside the first cavity 1, the second cavity 2 is slidably connected inside the first cavity 1, a first support spring 8 is fixedly connected between the first cavity 1 and the second cavity 2, a third cavity 9 is arranged inside the second cavity 2, and a plurality of groups of horizontal anti-vibration mechanisms 12 are fixedly connected inside the second cavity 2; The horizontal anti-vibration mechanism 12 includes a C-shaped fixed seat 121, and two groups of first rotating fixed rings 122 are rotatably connected to the inner side of the C-shaped fixed seat 121. A hydraulic damping rod 123 is fixedly connected to the side of the first rotating fixed ring 122. The movable end of the hydraulic damping rod 123 is fixedly connected to the second rotating fixed ring 125. A second supporting spring 124 is sleeved on the outer side of the hydraulic damping rod 123. A screw 126 is arranged on the inner side of the second rotating fixed ring 125, and a nut 127 is threadedly connected to the lower side of the screw 126.

[0022] By adopting the above solution, multiple groups of first support springs 8 are fixedly connected between the first cavity 1 and the second cavity 2, so that the second cavity 2 can be damped in the vertical direction inside the first cavity 1, so that the third cavity 9 is located inside the second cavity 2, thereby preventing the RFID antenna 14 and the reader 13 from being damaged by vibration in the vertical direction; Through multiple groups of figure-eight-shaped horizontal anti-vibration mechanisms 12, through its shape design, it is possible to more effectively disperse and absorb vibrations and impact forces from all directions, especially the shock-absorbing effect in non-orthogonal directions is better. The design of the figure-eight-shaped horizontal anti-vibration mechanism 12 is more compact and can more effectively utilize limited space. This design can improve the shock-absorbing effect without increasing the volume of the cavity.

[0023] Reference Figures 1 to 4 A fixing ring 10 is fixedly connected to the outside of the third cavity 9, a fixing through hole 11 is opened inside the fixing ring 10, a circle of grooves is opened outside the fixing ring 10, and fixing through holes 11 that penetrate the fixing ring 10 and correspond to each other are opened above and below the groove. A second rotating fixing ring 125 is arranged inside the groove, and a screw 126 sequentially penetrates the fixing through hole 11 above the fixing ring 10, the second rotating fixing ring 125 and the fixing through hole 11 below the fixing ring 10 and is threadedly connected with a nut 127, so that the second rotating fixing ring 125 is rotatably connected to the fixing ring 10. A third cavity 9 is arranged inside the second cavity 2, and the third cavity A reader / writer 13 and an RFID antenna 14 are fixedly connected inside 9, and the reader / writer 13 and the RFID antenna 14 are signal connected. A PLC control board 3 and a hydraulic cylinder 4 are fixedly connected inside the drill barrel 15, and a telescopic rod 5 is connected to the hydraulic cylinder 4. The movable end of the telescopic rod 5 is fixedly connected to a valve plate 6. A vertical valve 7 is arranged inside the drill barrel 15, and a side opening adapted to the valve plate 6 is opened on the side wall of the drill barrel 15. The valve plate 6 is used to open and close the side opening. The reader / writer 13 is signal connected to the PLC control board 3, and the PLC control board 3 is signal connected to the hydraulic cylinder 4 and the vertical valve 7. The second cavity 2 and the third cavity 9 are both hollow annular structures.

[0024] The above scheme is adopted: the hydraulic cylinder 4 and the vertical valve 7 are controlled by the PLC control board 3, wherein the PLC control board 3 receives the signal from the reader 13 to control the vertical valve 7 and the hydraulic cylinder 4. When the RFID tag is dropped from the drill tube 15 and enters the radiation range of the RFID antenna 14, the RFID antenna 14 can recognize the signal of the RFID tag and send the signal to the PLC control board 3, and the PLC control board 3 sends corresponding control signals to the hydraulic cylinder 4 and the vertical valve 7.

[0025] The working principle of the present invention is as follows: the first cavity 1 and the second cavity 2 are connected by multiple groups of first support springs 8. When the device is subjected to vertical vibration, the first support springs 8 can effectively absorb the vibration energy, reduce the vibration amplitude, and protect the internal RFID antenna 14 and the reader 13 from damage, thereby improving the stability and reliability of the device. Even in a strong vibration environment, the RFID system can work normally to ensure accurate reading and transmission of data. A fixing ring 10 is fixed on the outside of the third cavity 9. Through the cooperation of the fixing through hole 11 on the fixing ring 10 and the screw 126 and the nut 127, the connection with the horizontal anti-vibration mechanism 12 is realized, thereby ensuring the stability of the third cavity 9 in the horizontal direction. The horizontal anti-vibration mechanism 12 adopts an eight-shaped design, including a C-shaped fixing seat 121, a first rotating fixing ring 122, a hydraulic damping rod 123, a second rotating fixing ring 125 and a second support spring 124, wherein the hydraulic damping rod 123 and the second support spring 124 together constitute the core part of the anti-vibration. The damping characteristics of the hydraulic damping rod 123 can provide a stable damping force when impacted, and the second support spring 124 can provide additional support and buffering during the vibration process. These mechanisms can effectively disperse and absorb vibrations and impact forces from all directions, especially in non-orthogonal directions. The compact design of the eight-shaped horizontal anti-vibration mechanism 12 can more effectively utilize limited space, improve the shock absorption effect, and do not increase the volume of the cavity; A PLC control board 3 and a hydraulic cylinder 4 are fixed inside the drill tube 15. The PLC control board 3 receives signals from the reader 13 and controls the actions of the hydraulic cylinder 4 and the vertical valve 7 according to the signals. The hydraulic cylinder 4 controls the opening and closing of the valve plate 6 through the telescopic rod 5, thereby controlling the opening and closing of the side opening on the side wall of the drill tube 15. The vertical valve 7 is used to control the flow of the fluid inside the drill tube 15.

[0026] Embodiment 2: An RFID downhole plugging device with an anti-vibration structure comprises: a drill tube 15 and a first cavity 1, a second cavity 2 is arranged inside the first cavity 1, the second cavity 2 is slidably connected inside the first cavity 1, a first supporting spring 8 is fixedly connected between the first cavity 1 and the second cavity 2, a third cavity 9 is arranged inside the second cavity 2, and a plurality of horizontal anti-vibration mechanisms 12 are fixedly connected inside the second cavity 2; The horizontal anti-vibration mechanism 12 includes a C-shaped fixed seat 121, and two groups of first rotating fixed rings 122 are rotatably connected to the inner side of the C-shaped fixed seat 121. A hydraulic damping rod 123 is fixedly connected to the side of the first rotating fixed ring 122. The movable end of the hydraulic damping rod 123 is fixedly connected to the second rotating fixed ring 125. A second supporting spring 124 is sleeved on the outer side of the hydraulic damping rod 123. A screw 126 is arranged on the inner side of the second rotating fixed ring 125, and a nut 127 is threadedly connected to the lower side of the screw 126.

[0027] By adopting the above solution, multiple groups of first support springs 8 are fixedly connected between the first cavity 1 and the second cavity 2, so that the second cavity 2 can be damped in the vertical direction inside the first cavity 1, so that the third cavity 9 is located inside the second cavity 2, thereby preventing the RFID antenna 14 and the reader 13 from being damaged by vibration in the vertical direction; Through multiple groups of figure-eight-shaped horizontal anti-vibration mechanisms 12, through its shape design, it is possible to more effectively disperse and absorb vibrations and impact forces from all directions, especially the shock-absorbing effect in non-orthogonal directions is better. The design of the figure-eight-shaped horizontal anti-vibration mechanism 12 is more compact and can more effectively utilize limited space. This design can improve the shock-absorbing effect without increasing the volume of the cavity.

[0028] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An RFID downhole plugging device with an anti-vibration structure, characterized in that: include: A drill tube (15) and a first cavity (1), a second cavity (2) is arranged inside the first cavity (1), the first cavity (1) is slidably connected to the second cavity (2), a first support spring (8) is fixedly connected between the first cavity (1) and the second cavity (2), a third cavity (9) is arranged inside the second cavity (2), and a plurality of groups of horizontal anti-vibration mechanisms (12) are fixedly connected inside the second cavity (2); The horizontal anti-vibration mechanism (12) comprises a C-shaped fixed seat (121), two groups of first rotating fixed rings (122) are rotatably connected inside the C-shaped fixed seat (121), a hydraulic damping rod (123) is fixedly connected to the side of the first rotating fixed ring (122), a movable end of the hydraulic damping rod (123) is fixedly connected to a second rotating fixed ring (125), a second supporting spring (124) is sleeved on the outer side of the hydraulic damping rod (123), a screw rod (126) is arranged inside the second rotating fixed ring (125), and a nut (127) is threadedly connected below the screw rod (126).

2. The RFID downhole plugging device with an anti-vibration structure according to claim 1 is characterized in that: A fixing collar (10) is fixedly connected to the outside of the third cavity (9), and a fixing through hole (11) is provided on the inside of the fixing collar (10).

3. The RFID downhole plugging device with an anti-vibration structure according to claim 1 is characterized in that: A third cavity (9) is arranged inside the second cavity (2), and a reader / writer (13) and an RFID antenna (14) are fixedly connected inside the third cavity (9).

4. The RFID downhole plugging device with an anti-vibration structure according to claim 1 is characterized in that: A PLC control panel (3) and a hydraulic cylinder (4) are fixedly connected inside the drill barrel (15); a telescopic rod (5) is connected to the hydraulic cylinder (4); a valve plate (6) is fixedly connected to the movable end of the telescopic rod (5); and a vertical valve (7) is arranged inside the drill barrel (15).

5. The RFID downhole plugging device with an anti-vibration structure according to claim 1 is characterized in that: The second cavity (2) and the third cavity (9) are both hollow annular structures.

6. The RFID downhole plugging device with an anti-vibration structure according to claim 2 is characterized in that: The fixing collar (10) is provided with a groove on its outer side, and fixing through holes (11) are provided above and below the groove and penetrate the fixing collar (10) and are located at corresponding positions. The second rotating fixing collar (125) is arranged inside the groove, and the screw rod (126) penetrates the fixing through hole (11) above the fixing collar (10), the second rotating fixing collar (125), and the fixing through hole (11) below the fixing collar (10) in sequence and is threadedly connected to the nut (127), so that the second rotating fixing collar (125) is rotatably connected to the fixing collar (10).

7. The RFID downhole plugging device with an anti-vibration structure according to claim 3 is characterized in that: The reader / writer (13) and the RFID antenna (14) are signal-connected.

8. The RFID downhole plugging device with an anti-vibration structure according to claim 4 is characterized in that: A side opening adapted to the valve plate (6) is provided on the side wall of the drill tube (15); the valve plate (6) is used to open and close the side opening.

9. The RFID downhole plugging device with an anti-vibration structure according to claim 4 is characterized in that: The reader / writer (13) is signal-connected to a PLC control panel (3), and the PLC control panel (3) is signal-connected to a hydraulic cylinder (4) and a vertical valve (7).

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