CN215907836U

CN215907836U - Nuclear magnetic probe protective housing convenient to assembly

Info

Publication number: CN215907836U
Application number: CN202122619880.9U
Authority: CN
Inventors: 王俊武
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-02-25
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a nuclear magnetic probe protective shell convenient to assemble, which comprises a nuclear magnetic probe and a protective shell body, wherein the nuclear magnetic probe and the protective shell body are arranged at the bottom of a logging instrument, the bottom of the logging instrument is fixedly connected with a mounting ring, the protective shell body comprises a protective tube, the protective tube is sleeved on the nuclear magnetic probe, two sides of the top of the protective tube are fixedly connected with fixed blocks, the mounting ring is movably sleeved on the two fixed blocks, the right sides of the fixed blocks are provided with clamping grooves, and the right sides of the mounting rings are provided with rectangular grooves which are in cross communication with the inside of the mounting ring. According to the nuclear magnetic probe shielding device, the protective pipe is matched with the two shielding boxes, the nuclear magnetic probe is completely surrounded and shielded, the risk of damage caused by mistaken collision of the nuclear magnetic probe can be effectively reduced, the two shielding boxes can be automatically and synchronously rotated to remove shielding of the nuclear magnetic probe when the nuclear magnetic probe shielding device is used, exploration operation is facilitated, assembly operation of the protective pipe and the two shielding boxes can be rapidly achieved through a simple pulling mode, and the nuclear magnetic probe shielding device is convenient for personnel to use.

Description

Nuclear magnetic probe protective housing convenient to assembly

Technical Field

The utility model relates to the technical field of nuclear magnetic probe protective cases, in particular to a nuclear magnetic probe protective case convenient to assemble.

Background

The nuclear magnetic resonance logging is a new logging technology suitable for open hole wells, and is the only logging method which can directly measure the seepage volume characteristics of free fluids (oil, gas and water) of any lithologic reservoir at present, when in actual logging, a geomagnetic field is used as a static magnetic field, a nuclear magnetic logging instrument is used for deep underground exploration through a nuclear magnetic probe on the nuclear magnetic logging instrument, and in order to reduce the abrasion risk of the nuclear magnetic probe, a protective shell is required to shield and protect the nuclear magnetic probe when the logging instrument is used for descending the well;

current nuclear magnetic probe protective housing, install on the nuclear magnetic logging instrument through the mode of bolt fastening mostly, the quick assembly operation in later stage is not convenient for to the mode of bolt fastening, and in order to avoid nuclear magnetic probe survey the in-process, the protective housing disturbs the nuclear magnetic probe, establish to the opening mostly in the bottom of its protective housing, the bottom sets up to open-ended mode and shelters from the protecting effect relatively poor, the risk that the nuclear magnetic probe is bumped bad from the bottom appears easily, can not satisfy the user demand, therefore we have proposed a nuclear magnetic probe protective housing of being convenient for assemble and are used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a nuclear magnetic probe protective shell convenient to assemble.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a nuclear magnetic probe protective shell convenient to assemble comprises a nuclear magnetic probe and a protective shell body which are arranged at the bottom of a logging instrument, wherein the bottom of the logging instrument is fixedly connected with a mounting ring, the protective shell body comprises a protective tube, the protective tube is sleeved on the nuclear magnetic probe, both sides of the top of the protective tube are fixedly connected with fixed blocks, the mounting ring is movably sleeved on the two fixed blocks, the right side of the fixed block is provided with a clamping groove, the right side of the mounting ring is provided with a rectangular groove which is in cross communication with the inside of the mounting ring, a clamping mechanism is sleeved in the rectangular groove in a sliding manner and is clamped with the two clamping grooves, the right side of the clamping mechanism extends to the right side of the mounting ring, the clamping mechanism is magnetically attracted and fixed at the right side of the mounting ring, the bottoms of both sides of the protective tube are provided with rotating grooves, the bottoms of the two sides of the protective tube are provided with openings, the bottoms of the two shielding boxes are in movable contact, one sides, which are close to each other, are provided with openings and in movable contact, the top of each shielding box is provided with an opening, the two shielding boxes are movably sleeved on the nuclear magnetic probe, the top of each shielding box is fixedly connected with a rotating block, a rotating shaft is rotatably arranged between the front inner wall and the rear inner wall of each rotating groove, the top of each rotating block extends into the corresponding rotating groove, the rotating blocks are fixedly sleeved on the corresponding rotating shafts, gears are fixedly sleeved on the rotating shafts and are positioned on the front sides of the corresponding rotating blocks, racks are respectively meshed on the mutually close sides of the two gears, annular grooves are formed in the side walls of the protective tubes, the top ends of the racks extend into the annular grooves, driving guide mechanisms are slidably arranged in the annular grooves, the bottoms of the driving guide mechanisms are fixedly connected with the top ends of the racks, electric telescopic rods are embedded on the inner walls of the tops of the annular grooves, the top ends of output shafts of the electric telescopic rods are fixedly connected with the left sides of the tops of the driving guide mechanisms, and the driving guide mechanisms are sleeved on the nuclear magnetic probe, the nuclear magnetic probe is positioned between the two racks.

Preferably, the clamping mechanism comprises a clip rod which is slidably sleeved in the rectangular groove, the clip rod is sleeved on the nuclear magnetic probe, clamping blocks are fixedly connected to the inner walls of the left side and the right side of the clip rod respectively, the clamping blocks are clamped with the corresponding clamping grooves, the right side of the clip rod extends to the right side of the mounting ring and is fixedly connected with a T-shaped rod, and the T-shaped rod is fixed to the right side of the mounting ring in a magnetic attraction manner.

Preferably, the driving guide mechanism comprises a moving ring which is slidably mounted in the annular groove, the moving ring is sleeved on the nuclear magnetic probe, the bottom of the moving ring is fixedly connected with the top end of the rack, and the bottom end of the output shaft of the electric telescopic rod is fixedly connected with the left side of the top of the moving ring.

Preferably, slots are formed in two sides of the bottom of the mounting ring and are communicated with the rectangular grooves in a crossed mode, and the inner walls of the slots are in movable contact with the outer sides of the corresponding fixing blocks.

Preferably, a first magnet is fixedly connected to the inner wall of the right side of the T-shaped rod, a second magnet is fixedly connected to the right side of the mounting ring, and the left side of the first magnet is attracted to the right side of the second magnet.

Preferably, the front inner wall and the rear inner wall of the rotating groove are both fixedly connected with bearings, and the inner sides of the inner rings of the bearings are fixedly connected with the outer sides of the corresponding rotating shafts.

Preferably, two through holes are formed in the inner wall of the bottom of the annular groove, the through holes are communicated with the corresponding rotating grooves, and the racks are located in the corresponding through holes and are not in contact with the inner wall of the through holes.

Preferably, the equal fixedly connected with slider in both sides of shift ring has all seted up the first groove on the both sides inner wall of ring channel, and fixedly connected with T shape slide rail on its open-ended one side inner wall is kept away from in the first groove, and the T shape spout that top and bottom are the opening setting is seted up to one side that the shift ring was kept away from to the slider, T shape slide rail and the T shape spout sliding connection that corresponds.

Preferably, a wireless remote control switch is arranged in the electric telescopic rod, and an external remote controller is arranged in the wireless remote control switch in a matching mode.

Compared with the prior art, the utility model has the beneficial effects that:

by the well logging instrument, the nuclear magnetic probe, the mounting ring, the protective tube, the shielding box, the fixed block, the clamping groove, the clamping block, the clip rod, the rectangular groove, the T-shaped rod, the annular groove, the moving ring, the electric telescopic rod, the rack, the rotating groove, the rotating block, the rotating shaft is matched with the gear, the protective tube and the two shielding boxes are arranged to completely shield the nuclear magnetic probe, when the nuclear magnetic probe is required to be exposed for exploration operation, the electric telescopic rod is controlled by an external remote controller to be started in the forward direction, the electric telescopic rod drives the moving ring to move downwards, the moving ring drives the two racks to move downwards, the two racks drive the two gears to rotate in opposite directions, the gears sequentially drive the shielding boxes to rotate through the corresponding rotating shaft and the rotating block, the shielding of the nuclear magnetic probe is removed by the rotation of the two shielding boxes in opposite directions, the exploration operation can be carried out, after the use, the electric telescopic rod is controlled by the external remote controller to be started in the reverse direction, the two shielding boxes move towards the direction close to each other and shield and protect the nuclear magnetic probe;

when the nuclear magnetic probe is required to be removed and the shielding box is removed, the T-shaped rod is pulled rightwards to drive the first magnet to be separated from the second magnet rightwards, the T-shaped rod drives the two clamping blocks to be respectively moved out of the corresponding clamping grooves through the clip rod, at the moment, the protecting tube can be moved downwards to drive the two fixing blocks to be respectively moved out of the corresponding slots, the protecting tube drives the two shielding boxes to move downwards to remove the shielding of the nuclear magnetic probe, the nuclear magnetic probe is convenient for personnel to carry out maintenance operation on the nuclear magnetic probe, when the nuclear magnetic probe is required to be shielded, the protecting tube is moved upwards to drive the two fixing blocks to be respectively inserted into the corresponding slots, the protecting tube drives the two shielding boxes to move upwards to be sleeved on the nuclear magnetic probe, then the T-shaped rod is pushed leftwards to drive the two clamping blocks to be respectively clamped into the corresponding clamping grooves leftwards through the clip rod, and the protecting tube and the shielding boxes are fixed, and (5) finishing the installation.

According to the nuclear magnetic probe shielding device, the protective pipe is matched with the two shielding boxes, the nuclear magnetic probe is completely surrounded and shielded, the risk of damage caused by mistaken collision of the nuclear magnetic probe can be effectively reduced, the two shielding boxes can be automatically and synchronously rotated to remove shielding of the nuclear magnetic probe when the nuclear magnetic probe shielding device is used, exploration operation is facilitated, assembly operation of the protective pipe and the two shielding boxes can be rapidly achieved through a simple pulling mode, and the nuclear magnetic probe shielding device is convenient for personnel to use.

Drawings

FIG. 1 is a schematic structural view of a magnetic nuclear probe protective case of the present invention, which is easy to assemble;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 100 logging instruments, 101 nuclear magnetic probes, 1 mounting ring, 2 protective tubes, 3 shielding boxes, 4 fixing blocks, 5 clamping grooves, 6 clamping blocks, 7-shaped rods, 8 rectangular grooves, 9T-shaped rods, 10 annular grooves, 11 moving rings, 12 electric telescopic rods, 13 racks, 14 rotating grooves, 15 rotating blocks, 16 rotating shafts and 17 gears.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a nuclear magnetic probe protective shell convenient for assembly comprises a nuclear magnetic probe 101 arranged at the bottom of a logging instrument 100 and a protective shell body, wherein the bottom of the logging instrument 100 is fixedly connected with a mounting ring 1, the protective shell body comprises a protective tube 2, the protective tube 2 is sleeved on the nuclear magnetic probe 101, two sides of the top of the protective tube 2 are fixedly connected with fixed blocks 4, the mounting ring 1 is movably sleeved on the two fixed blocks 4, the right side of the fixed block 4 is provided with a clamping groove 5, the right side of the mounting ring 1 is provided with a rectangular groove 8 which is in cross communication with the inside of the mounting ring 1, a clamping mechanism is sleeved in the rectangular groove 8 in a sliding manner and clamped manner with the two clamping grooves 5, the right side of the clamping mechanism extends to the right side of the mounting ring 1, the clamping mechanism is fixed on the right side of the mounting ring 1 in a magnetic manner, the bottoms of two sides of the protective tube 2 are provided with rotating grooves 14 with openings at the bottoms, the bottom of the protective tube 2 is movably contacted with two shielding boxes 3, one side of each shielding box 3, which is close to each other, is provided with an opening and is movably contacted with the opening, the top of each shielding box 3 is provided with an opening, each shielding box 3 is movably sleeved on the nuclear magnetic probe 101, the top of each shielding box 3 is fixedly connected with a rotating block 15, a rotating shaft 16 is rotatably arranged between the front inner wall and the rear inner wall of each rotating groove 14, the top of each rotating block 15 extends into the corresponding rotating groove 14, each rotating block 15 is fixedly sleeved on the corresponding rotating shaft 16, a gear 17 is fixedly sleeved on each rotating shaft 16, the gear 17 is positioned at the front side of the corresponding rotating block 15, one side, which is close to each other, of the two gears 17 is meshed with a rack 13, the side wall of the protective tube 2 is provided with an annular groove 10, the top end of each rack 13 extends into the annular groove 10, a driving guide mechanism is slidably arranged in the annular groove 10, and the bottom of the driving guide mechanism is fixedly connected with the top end of the rack 13, an electric telescopic rod 12 is embedded on the inner wall of the top of the annular groove 10, the top end of an output shaft of the electric telescopic rod 12 is fixedly connected with the left side of the top of a driving guide mechanism, the driving guide mechanism is sleeved on a nuclear magnetic probe 101, and the nuclear magnetic probe 101 is positioned between two racks 13;

the clamping mechanism comprises a clip rod 7 which is slidably sleeved in the rectangular groove 8, the clip rod 7 is sleeved on the nuclear magnetic probe 101, the inner walls of the left side and the right side of the clip rod 7 are fixedly connected with a clamping block 6, the clamping block 6 is clamped with the corresponding clamping groove 5, the right side of the clip rod 7 extends to the right side of the mounting ring 1 and is fixedly connected with a T-shaped rod 9, and the T-shaped rod 9 is fixed on the right side of the mounting ring 1 in a magnetic absorption manner;

the driving guide mechanism comprises a moving ring 11 which is slidably mounted in the annular groove 10, the moving ring 11 is sleeved on the nuclear magnetic probe 101, the bottom of the moving ring 11 is fixedly connected with the top end of a rack 13, and the bottom end of an output shaft of the electric telescopic rod 12 is fixedly connected with the left side of the top of the moving ring 11.

In the utility model, two slots are respectively arranged on two sides of the bottom of a mounting ring 1, the two slots are respectively communicated with a rectangular slot 8 in a crossing way, the inner walls of the slots are in movable contact with the outer sides of corresponding fixed blocks 4, a first magnet is fixedly connected to the inner wall of the right side of a T-shaped rod 9, a second magnet is fixedly connected to the right side of the mounting ring 1, the left side of the first magnet is attracted to the right side of the second magnet, bearings are fixedly connected to the inner walls of the front side and the rear side of a rotating slot 14, the inner side of the inner ring of each bearing is fixedly connected with the outer side of a corresponding rotating shaft 16, two through holes are arranged on the inner wall of the bottom of an annular slot 10, the through holes are communicated with corresponding rotating slots 14, racks 13 are positioned in the corresponding through holes and are not in contact with the inner walls of the through holes, sliding blocks are fixedly connected to two sides of a moving ring 11, first slots are respectively arranged on the inner walls of two sides of the annular slot 10, a T-shaped sliding rail is fixedly connected to the inner wall of one side of the first slot, which is far away from the opening, the novel nuclear magnetic probe device is characterized in that one side, away from the moving ring 11, of the sliding block is provided with a T-shaped sliding groove, the top and the bottom of the T-shaped sliding groove are both arranged through openings, the T-shaped sliding rail is in sliding connection with the corresponding T-shaped sliding groove, a wireless remote control switch is arranged in the electric telescopic rod 12, and an external remote controller is arranged in a matching manner of the wireless remote control switch.

The working principle is as follows: when the nuclear magnetic probe is used, the protective tube 2 and the two shielding boxes 3 are arranged to completely shield and protect the nuclear magnetic probe 101, the risk that the nuclear magnetic probe 101 is damaged by mistake in the process of going into a well is reduced, when the nuclear magnetic probe 101 needs to be exposed for exploration operation, the electric telescopic rod 12 is controlled to be started in the forward direction through an external remote controller to control a wireless remote control switch, the output shaft of the electric telescopic rod 12 drives the movable ring 11 to move downwards, the movable ring 11 drives the two sliding blocks to respectively slide on the corresponding T-shaped sliding rails, the movable ring 11 drives the two racks 13 to move downwards, the two racks 13 drive the two gears 17 to rotate in opposite directions, the gears 17 drive the corresponding rotating shafts 16 to rotate, the rotating shafts 16 drive the corresponding rotating blocks 15 to rotate, the two shielding boxes 3 to rotate in opposite directions, and the shielding of the nuclear magnetic probe 101 is gradually removed while the shielding boxes 3 rotate, the nuclear magnetic probe 101 is exposed, exploration operation can be carried out, after the nuclear magnetic probe is used, the electric telescopic rod 12 is controlled to be started reversely through an external remote controller, the motion process of the electric telescopic rod 12 is opposite to the motion process of the electric telescopic rod 12 which is started forwardly, the two shielding boxes 3 are enabled to move towards the direction which is close to each other and shield and protect the nuclear magnetic probe 101, and the risk of damage caused by mistaken collision of the nuclear magnetic probe 101 can be effectively reduced by means of completely surrounding and shielding the nuclear magnetic probe 101;

when the nuclear magnetic probe 101 needs to be removed and the shielding box 3 needs to be removed to remove shielding of the nuclear magnetic probe 101, the T-shaped rod 9 is pulled rightwards to drive the first magnet to be separated from the second magnet rightwards, the T-shaped rod 9 drives the clip rod 7 to move rightwards, the clip rod 7 drives the two clamping blocks 6 to move out of the corresponding clamping grooves 5 respectively, fixing of the fixing blocks 4 is removed, the protecting tube 2 can move downwards, the protecting tube 2 drives the two fixing blocks 4 to move out of the corresponding slots respectively, the protecting tube 2 moves downwards and drives the two shielding boxes 3 to move downwards simultaneously, shielding of the nuclear magnetic probe 101 is removed, maintenance operation of the nuclear magnetic probe 101 is facilitated for personnel, when the nuclear magnetic probe 101 needs to be shielded, the fixing blocks 4 are aligned with the corresponding slots, the protecting tube 2 moves upwards to drive the two fixing blocks 4 to be inserted into the corresponding slots respectively, the protecting tube 2 drives the two shielding boxes 3 to move upwards and be sleeved on the nuclear magnetic probe 101, promote T shape pole 9 immediately left, T shape pole 9 drives back shape pole 7 and moves left, returns shape pole 7 and drives two fixture blocks 6 and move left, in fixture block 6 blocks into corresponding draw-in groove 5 left, T shape pole 9 drives first magnet and adsorbs with the second magnet left when moving left for fixed block 4 is fixed, and then makes protective tube 2 and shelter from box 3 and be fixed, protective tube 2 shelters from the protection with sheltering from box 3 to nuclear magnetic probe 101 this moment.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A nuclear magnetic probe protection shell convenient to assemble comprises a nuclear magnetic probe (101) arranged at the bottom of a logging instrument (100) and a protection shell body, wherein the bottom of the logging instrument (100) is fixedly connected with a mounting ring (1), the protection shell body comprises a protection tube (2), and the nuclear magnetic probe protection shell is characterized in that the protection tube (2) is sleeved on the nuclear magnetic probe (101), both sides of the top of the protection tube (2) are fixedly connected with fixed blocks (4), the mounting ring (1) is movably sleeved on the two fixed blocks (4), the right side of each fixed block (4) is provided with a clamping groove (5), the right side of the mounting ring (1) is provided with a rectangular groove (8) which is in cross communication with the inside of the mounting ring (1), a clamping mechanism is sleeved in the rectangular groove (8) in a sliding manner and is clamped with the two clamping grooves (5), and the right side of the clamping mechanism extends to the right side of the mounting ring (1), the clamping mechanism is fixed on the right side of the mounting ring (1) in a magnetic attraction manner, the bottoms of the two sides of the protective tube (2) are respectively provided with a rotating groove (14) with the bottom arranged as an opening, the bottom of the protective tube (2) is movably contacted with two shielding boxes (3), one side of each shielding box (3) close to each other is respectively provided with an opening and movably contacted, the top of each shielding box (3) is provided with an opening, the two shielding boxes (3) are movably sleeved on the nuclear magnetic probe (101), the top of each shielding box (3) is fixedly connected with a rotating block (15), a rotating shaft (16) is rotatably arranged between the inner wall of the front side and the inner wall of the rear side of each rotating groove (14), the top of each rotating block (15) extends into the corresponding rotating groove (14), the rotating blocks (15) are fixedly sleeved on the corresponding rotating shafts (16), gears (17) are fixedly sleeved on the rotating shafts (16), and arranged on the gears (17) and positioned at the front sides of the corresponding rotating blocks (15), one side that two gears (17) are close to each other all meshes has rack (13), ring channel (10) have been seted up on the lateral wall of protective tube (2), the top of rack (13) extends to in ring channel (10), slidable mounting has drive guiding mechanism in ring channel (10), the bottom of drive guiding mechanism and the top fixed connection of rack (13), it is equipped with electric telescopic handle (12) to inlay on the top inner wall of ring channel (10), the output shaft top of electric telescopic handle (12) and the top left side fixed connection of drive guiding mechanism, the drive guiding mechanism cover is established on nuclear magnetic probe (101), nuclear magnetic probe (101) are located between two racks (13).

2. The nuclear magnetic probe protection shell convenient to assemble according to claim 1, wherein the clamping mechanism comprises a clip rod (7) which is slidably sleeved in a rectangular groove (8), the clip rod (7) is sleeved on the nuclear magnetic probe (101), clamping blocks (6) are fixedly connected to inner walls of the left side and the right side of the clip rod (7), the clamping blocks (6) are clamped with corresponding clamping grooves (5), the right side of the clip rod (7) extends to the right side of the mounting ring (1) and is fixedly connected with a T-shaped rod (9), and the T-shaped rod (9) is fixed to the right side of the mounting ring (1) in a magnetic attraction mode.

3. The nuclear magnetic probe protection shell convenient to assemble according to claim 1, wherein the driving guide mechanism comprises a moving ring (11) which is slidably installed in the annular groove (10), the moving ring (11) is sleeved on the nuclear magnetic probe (101), the bottom of the moving ring (11) is fixedly connected with the top end of the rack (13), and the bottom end of the output shaft of the electric telescopic rod (12) is fixedly connected with the left side of the top of the moving ring (11).

4. The protective shell of nuclear magnetic probe convenient to assemble according to claim 1, wherein two sides of the bottom of the mounting ring (1) are provided with slots, the two slots are communicated with the rectangular groove (8) in a crossing manner, and the inner walls of the slots are in movable contact with the outer side of the corresponding fixing block (4).

5. The protective shell of claim 2, wherein a first magnet is fixedly connected to the inner wall of the right side of the T-shaped rod (9), a second magnet is fixedly connected to the right side of the mounting ring (1), and the left side of the first magnet is attracted to the right side of the second magnet.

6. A magnetic resonance probe protective casing convenient to assemble according to claim 1, wherein the front inner wall and the rear inner wall of the rotating groove (14) are fixedly connected with bearings, and the inner sides of the inner rings of the bearings are fixedly connected with the outer sides of the corresponding rotating shafts (16).

7. The protective shell of nuclear magnetic probe convenient to assemble according to claim 1, characterized in that the bottom inner wall of the annular groove (10) is provided with two through holes, the through holes are communicated with the corresponding rotating grooves (14), and the rack (13) is positioned in the corresponding through holes and is not contacted with the inner wall of the through holes.

8. The nuclear magnetic probe protective shell convenient to assemble according to claim 3, wherein sliding blocks are fixedly connected to two sides of the moving ring (11), first grooves are formed in inner walls of two sides of the annular groove (10), T-shaped sliding rails are fixedly connected to inner walls of one side, away from the opening, of the first grooves, T-shaped sliding grooves are formed in one side, away from the moving ring (11), of each sliding block, the tops and the bottoms of the T-shaped sliding grooves are both arranged in an opening mode, and the T-shaped sliding rails are in sliding connection with the corresponding T-shaped sliding grooves.

9. The easy-to-assemble nuclear magnetic probe protective shell according to claim 1, characterized in that a wireless remote control switch is arranged in the electric telescopic rod (12), and the wireless remote control switch is matched with an external remote controller.