Portable device for roadway deformation monitoring

Abstract

The invention discloses a portable device for roadway deformation monitoring, and relates to the technical field of roadway monitoring. The portable device for roadway deformation monitoring comprises a box body, a monitor, a first connecting unit, an adjusting assembly and a second connecting unit, the box body comprises a first containing cavity and a second containing cavity, the first containing cavity is slidably provided with a storage frame used for containing the monitor, the first connecting unit comprises a fixing plate and a mounting plate, and the fixing plate and the mounting plate are arranged on the fixing plate. The monitor is arranged on the fixing plate in a position adjustable mode, the mounting plate is rotationally arranged on the fixing plate, the adjusting assembly is arranged in the first containing cavity and is adjustable in height, the second connecting unit comprises a first rod and a first plate, the other end of the first rod is connected with the adjusting assembly, and the first plate is detachably connected with the mounting plate. The portable device for roadway deformation monitoring is convenient to move and can be suitable for a complex roadway environment, and the real-time performance and accuracy of measured data are guaranteed to reflect the actual deformation condition of a roadway.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel monitoring, and in particular to a portable device for tunnel deformation monitoring. Background Art

[0002] In coal mining activities, as the excavation face continues to deepen, the problem of coal mine roadway deformation becomes increasingly obvious, posing a serious threat to the safety of miners and the normal production of coal mines. In related technologies, coal mine roadway deformation monitoring mainly uses traditional manual measurement or fixed monitoring equipment. Although manual measurement can obtain relatively accurate roadway deformation data, it has disadvantages such as low measurement efficiency, high labor intensity, and poor data real-time performance. It is difficult to meet the real-time and accuracy requirements of modern coal mine production for safety monitoring. Although fixed monitoring equipment can achieve automated monitoring to a certain extent, its installation position is fixed, the monitoring range is limited, and it is difficult to adapt to the complex and changeable coal mine roadway environment. Especially in mining areas with complex geological conditions and frequent roadway deformation, fixed monitoring equipment often cannot accurately reflect the actual deformation of the roadway. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes a portable device for monitoring tunnel deformation. The portable device is easy to move, can be applied to complex tunnel environments, and ensures the real-time and accuracy of measurement data to reflect the actual deformation of the tunnel.

[0005] The portable device for monitoring tunnel deformation according to an embodiment of the present invention includes:

[0006] A box, a monitor, and a first connecting unit, wherein the box includes a first accommodating chamber and a second accommodating chamber, a storage frame is slidably provided in the first accommodating chamber, a third accommodating chamber for accommodating the monitor is limited in the storage frame, the box is provided with running wheels, the first connecting unit includes a fixing plate and a mounting plate, the position of the monitor is adjustable and the mounting plate is rotatably provided on the side of the fixing plate away from the monitor, and a first connecting portion is provided on the mounting plate;

[0007] an adjusting component, the adjusting component being disposed in the first accommodating cavity and being height-adjustable;

[0008] The second connecting unit includes a first rod and a first plate. The other end of the first rod is connected to the adjustment assembly. A second connecting portion is provided on the first plate. The second connecting portion is detachably connected to the first connecting portion.

[0009] The portable device for monitoring tunnel deformation according to the embodiment of the present invention is easy to move, can be applied to complex tunnel environments, and ensures the real-time and accuracy of measurement data to reflect the actual deformation of the tunnel.

[0010] In some embodiments, the first connecting unit includes a first connecting rod and a plurality of second connecting rods, one end of the first connecting rod is connected to the fixed plate by a ball joint, the other end of the first connecting rod is fixedly connected to the monitor, a plurality of second connecting rods are circumferentially spaced around the first connecting rod and fixedly connected to the fixed plate, the other end of the second connecting rod is in contact with the monitor, and the length of the second connecting rod is adjustable.

[0011] In some embodiments, multiple second connecting rods are arranged at an angle, and the distance between any two second connecting rods increases in the direction away from the fixed plate. An abutment plate is rotatably provided at one end of the second connecting rod away from the fixed plate, and the abutment plate is used to abut against the end face of the monitor.

[0012] In some embodiments, the first connecting unit includes a first drive motor, a protective ring and a connecting bearing. The first drive motor is arranged on the mounting plate, and the output shaft of the first drive motor is fixedly connected to the fixed plate. The protective ring is arranged between the fixed plate and the mounting plate and is sleeved on the first drive motor. The connecting bearing is arranged on the protective ring and connected to the fixed plate or the mounting plate.

[0013] In some embodiments, the first connecting portion is an insertion rod, and the second connecting portion is a socket provided on the first board, and the insertion rod is plugged into and fits with the socket.

[0014] In some embodiments, the insertion rod is provided with a radially extending limiting hole, the first plate is slidably provided with a limiting plate, the cross-sectional size of the limiting plate is the same as the cross-sectional size of the limiting hole, and the limiting plate is used to be plugged into the limiting hole.

[0015] In some embodiments, the adjustment component is a foldable mechanical arm, one end of the mechanical arm is rotatably connected to the bottom wall of the second accommodating cavity, and the first rod is provided at the other end of the mechanical arm.

[0016] In some embodiments, a third connecting unit is included, the length of the first rod is adjustable, the third connecting unit includes a second rod and a second plate, the second rod is rotatably arranged on the side of the first plate close to the first rod, and a third connecting part is provided on the second plate, and the third connecting part is detachably connected to the first connecting part.

[0017] In some embodiments, the opening of the first accommodating cavity is provided on one side of the box body, a first magnetic component is provided in the first accommodating cavity, a second magnetic component is correspondingly provided on the storage frame, and the first magnetic component is used to be magnetically connected to the second magnetic component.

[0018] In some embodiments, a baffle is rotatably provided on the box body corresponding to the second accommodating cavity, and the baffle is used to cover the top of the second accommodating cavity. A pull rod is rotatably provided on the box body, and the length of the pull rod is adjustable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of a portable device for monitoring tunnel deformation according to an embodiment of the present invention.

[0020] Figure 2 3 is a schematic structural diagram of the portable device for monitoring tunnel deformation according to an embodiment of the present invention when in use.

[0021] Figure 3 3 is a connection diagram of the first connection unit in the portable device for monitoring tunnel deformation according to an embodiment of the present invention.

[0022] Figure 4 It is a connection diagram of the adjustment component and the second connection unit in the portable device for monitoring tunnel deformation according to an embodiment of the present invention.

[0023] Figure 5 Schematic diagram of the connection between the first rod and the first plate in the portable device for monitoring tunnel deformation according to an embodiment of the present invention.

[0024] Figure 6 It is a cross-sectional view of the box in the portable device for monitoring tunnel deformation according to an embodiment of the present invention.

[0025] Reference numerals:

[0026] Box body 1; first accommodating chamber 11; second accommodating chamber 12; storage frame 13; third accommodating chamber 14; running wheel 15; baffle 16; pull rod 17;

[0027] Monitor 2;

[0028] First connecting unit 3; fixing plate 31; mounting plate 32; first connecting portion 33; first connecting rod 34; second connecting rod 35; first driving motor 36; protective ring 37; connecting bearing 38; limiting hole 39;

[0029] Adjustment component 4;

[0030] Second connecting unit 5; first rod 51; first plate 52; second connecting portion 53; limiting rod 54;

[0031] Third connecting unit 6; second rod 61; second plate 62; second drive motor 63

[0032] A first magnetic member 7;

[0033] The second magnetic element 8 . DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 6 As shown, the portable device for monitoring tunnel deformation according to an embodiment of the present invention includes a box 1 , a monitor 2 , a first connecting unit 3 , an adjusting component 4 and a second connecting unit 5 .

[0036] The box body 1 includes a first accommodating chamber 11 and a second accommodating chamber 12. A storage frame 13 is slidingly provided in the first accommodating chamber 11. A third accommodating chamber 14 for accommodating the monitor 2 is limited in the storage frame 13. The box body 1 is provided with walking wheels 15. The first connecting unit 3 includes a fixed plate 31 and a mounting plate 32. The monitor 2 is adjustable and arranged on the fixed plate 31. The mounting plate 32 is rotatably arranged on the side of the fixed plate 31 away from the monitor 2. A first connecting portion 33 is provided on the mounting plate 32. The adjustment component 4 is provided in the first accommodating chamber 11 and is height-adjustable. The second connecting unit 5 includes a first rod 51 and a first plate 52. The other end of the first rod 51 is fixedly connected to the adjustment component 4. A second connecting portion 53 is provided on the first plate 52; the second connecting portion 53 is detachably connected to the first connecting portion 33.

[0037] When the portable device for monitoring tunnel deformation according to an embodiment of the present invention is in use, the box 1 is moved to the position to be measured, the storage frame 13 is moved, the monitor 2 placed in the third accommodating chamber 14 is taken out, and the adjustment component 4 in the second accommodating chamber 12 is activated, the height of the adjustment component 4 is adjusted, and the monitor 2 is connected through the first connecting part 33 and the second connecting part 53, the height of the adjustment component 4 is further adjusted, and the inclination angle of the monitor 2 is adjusted on the fixing plate 31 so that the monitor 2 is aligned with the measuring point.

[0038] The portable device for monitoring tunnel deformation in an embodiment of the present invention is integrated on the box 1, which is convenient for movement. The measuring position and measuring height of the monitor 2 can be adjusted conveniently through the adjustment component 4 and the first connecting unit 3. At the same time, the monitor 2 can be quickly installed and disassembled through the first connecting part 33 and the second connecting part 53, which facilitates the movement and installation of the device in a complex tunnel environment, thereby ensuring the real-time and accuracy of the measurement data to reflect the actual deformation of the tunnel.

[0039] Optionally, a buffer pad is provided in the third accommodating cavity 14 , and the buffer pad is used to protect the monitor 2 , reduce damage to the monitor 2 during the movement of the box 1 , and ensure the measurement accuracy of the monitor 2 .

[0040] In some embodiments, as Figure 2 and Figure 3 As shown, the first connecting unit 3 includes a first connecting rod 34 and a plurality of second connecting rods 35, one end of the first connecting rod 34 is connected to the fixed plate 31 by a ball joint, the other end of the first connecting rod 34 is fixedly connected to the monitor 2, and the plurality of second connecting rods 35 are arranged at intervals along the circumferential direction around the first connecting rod 34 and are fixedly connected to the fixed plate 31, the other end of the second connecting rod 35 abuts against the monitor 2, and the length of the second connecting rod 35 is adjustable.

[0041] Specifically, a tube is provided at the axial position of the fixed plate 31, and a universal ball is provided at the end of the first connecting rod 34. The universal ball is hingedly fitted in the tube, and a sealing ring is provided in the tube to prevent the universal ball from falling out. The other end of the first connecting rod 34 is fixedly connected to the monitor 2, and the extension direction of the first connecting rod 34 is perpendicular to the end face of the monitor. Multiple second connecting rods 35 are arranged at equal intervals along the circumference of the first connecting rod 34. The second connecting rod 35 is an electric telescopic rod, which is electrically connected to the mobile power supply in the box 1 through a wire.

[0042] When adjusting the monitor 2 relative to the fixing plate 31, the multiple second connecting rods 35 are retracted, and the first connecting rod 34 is rotated via the ball joint connection between the first connecting rod 34 and the fixing plate 31 to adjust the position and tilt angle of the monitor 2. When the monitor 2 is adjusted to the correct position, the multiple second connecting rods 35 are sequentially extended so that the ends of the multiple second connecting rods 35 abut against the monitor 2. This facilitates the adjustment of the position and tilt angle of the monitor 2.

[0043] Optionally, the length of the first connecting rod 34 is adjustable and may be an electrically-operated telescopic rod.

[0044] Optionally, three or four second connecting rods 35 are provided.

[0045] In some embodiments, as Figure 3 As shown, multiple second connecting rods 35 are arranged at an angle, and the distance between any two second connecting rods 35 increases in the direction away from the fixed plate 31. An abutment plate is rotatably provided at one end of the second connecting rod 35 away from the fixed plate 31, and the abutment plate is used to abut against the end face of the monitor 2.

[0046] By tilting the plurality of second connecting rods 35 so as to increase the effective support coverage area of ​​the plurality of second connecting rods 35 while fixing the bottom of the second connecting rods 35 , the effective adjustment and fixing range of the monitor 2 under the rotation of the first connecting rod 34 is ensured.

[0047] Optionally, the abutment plate is hinged to the second connecting rod 35 via a connecting lug and a rotating shaft, or the abutment plate is spherically hinged to the second connecting rod 35 via a universal ball and a sleeve.

[0048] In some embodiments, as Figure 3 As shown, the first connecting unit 3 includes a first drive motor 36, a protective ring 37 and a connecting bearing 38. The first drive motor 36 is arranged on the mounting plate 32. The output shaft of the first drive motor 36 is fixedly connected to the fixed plate 31. The protective ring 37 is arranged between the fixed plate 31 and the mounting plate 32 and is sleeved on the first drive motor 36. The connecting bearing 38 is arranged on the protective ring 37 and is connected to the fixed plate 31 or the mounting plate 32.

[0049] By setting up a first drive motor 36, when adjusting the monitor 2, the first drive motor 36 can be rotated to drive the fixed plate 31 to rotate relative to the mounting plate 32, and then the monitor 2, the first connecting rod 34 and the second connecting rod 35 can rotate as a whole relative to the mounting plate 32, so as to facilitate the adjustment of the measuring angle of the monitor 2 and ensure effective detection of the monitor 2. At the same time, a protective ring 37 is set to protect the first drive motor 36 to prevent dust or debris from entering the position of the first drive motor 36 to interfere with the first drive motor 36. By setting a connecting bearing 38 on the protective ring 37, the contact area between the mounting plate 32 and the fixed plate 31 is increased, thereby increasing the connection strength between the mounting plate 32 and the fixed plate 31, thereby ensuring the safety and reliability of the monitor 2 when in use.

[0050] Optionally, the driving motor is connected to a first connector via a wire, and the first connector is used to be connected to a mobile power source in the box 1, thereby realizing rotation control of the driving motor.

[0051] In some embodiments, as Figure 4 and Figure 5 As shown, the first connecting part 33 is an insert rod, and the second connecting part 53 is a socket provided on the first plate 52. The insert rod is plugged into the socket, and a limiting hole 39 extending radially is provided on the insert rod. The first plate 52 is slidingly provided with a limiting plate, and the cross-sectional size of the limiting plate is the same as the cross-sectional size of the limiting hole 39. The limiting plate is used to be plugged into the limiting hole 39.

[0052] Specifically, two first sliding rails are provided in parallel on the first plate 52, and a sliding rod is slidably provided on the two first sliding rails. The limit plate is fixedly provided on the sliding rod, and a support spring is provided on the side of the sliding rod facing away from the limit plate. The other end of the support spring is fixedly connected to the sliding rail. In the absence of external force, the support spring drives the sliding rod and the limit block to move toward the direction close to the socket.

[0053] When the first connecting part 33 and the second connecting part 53 are connected and assembled, the limit rod 54 and the slide rod are moved to open the socket, the plug rod is inserted into the socket, and the limit hole 39 is aligned with the limit rod 54. The external force applied to the limit rod 54 is contacted, and the support spring drives the limit rod 54 and the slide rod to move. The limit rod 54 is inserted into the limit hole 39, further fixing the plug rod to prevent the plug rod from falling out of the slot, thereby ensuring the reliability and safety of the monitor 2 during use.

[0054] In some embodiments, as Figure 2 and Figure 4 As shown, the adjustment component 4 is a foldable mechanical arm, one end of which is rotatably connected to the bottom wall of the second accommodating cavity 12, and the first rod 51 is provided at the other end of the mechanical arm.

[0055] Specifically, the robotic arm includes a first section and a second section. The first section is connected to the second accommodating groove through damped rotation. The first section and the second section are connected through damped rotation. The height of the second section away from the first section can be adjusted by rotating the first section and the second section, thereby facilitating adjustment of the height of the second connecting unit 5 and the monitor 2.

[0056] Optionally, the end of the first rod 51 is rotationally connected to the second section via a damper. It should be noted that under the action of the damper, when there is no external force, the relative positions of the first rod 51 and the second section are fixed and will not rotate spontaneously.

[0057] In some embodiments, as Figure 2 and Figure 4 As shown, it includes a third connecting unit 6, the length of the first rod 51 is adjustable, the third connecting unit 6 includes a second rod 61 and a second plate 62, the second rod 61 is rotatably arranged on the side of the first plate 52 close to the first rod 51, and a third connecting part is provided on the second plate 62, and the third connecting part is detachably connected to the first connecting part 33.

[0058] Specifically, a second drive motor 63 is fixedly provided on the first plate 52, and the output shaft of the second drive motor 63 is rotatably provided on the first plate 52. The second rod 61 is fixedly provided on the output shaft of the second drive motor 63. The third connecting part has the same structure as the first connecting part 33 and will not be repeated here. The second drive motor 63 drives the second rod 61 to rotate to further adjust the detection position of the monitor 2.

[0059] Optionally, a baffle 16 is provided in the first accommodating chamber 11 to separate it into two chambers, and a monitor 2 is placed in each chamber. The two monitors 2 can be connected to the second connecting unit 5 and the third connecting unit 6 respectively, so that the two monitors 2 can operate simultaneously.

[0060] In some embodiments, as Figure 6As shown, the opening of the first accommodating cavity 11 is provided on one side of the box body 1 , a first magnetic component 7 is provided in the first accommodating cavity 11 , and a second magnetic component 8 is correspondingly provided on the storage frame 13 , and the first magnetic component 7 is used to be magnetically connected to the second magnetic component 8 .

[0061] The opening of the first accommodating cavity 11 is set on one side of the box body 1 to facilitate the removal of the storage frame 13. At the same time, the first magnetic member 7 and the second magnetic member 8 are respectively set on the first accommodating cavity 11 and the storage frame 13 to ensure the stability of the storage frame 13 in the box body 1 during the movement of the box body 1, so as to facilitate the movement.

[0062] Optionally, the first magnetic member 7 is a magnet, and the second magnetic member 8 is a magnetic metal;

[0063] Alternatively, the first magnetic member 7 and the second magnetic member 8 are both magnets, and the two magnets are close to each other;

[0064] Alternatively, the first magnetic component 7 is an iron core, which is electrically connected to a distributor, and the second magnetic component 8 is a negative magnetic block, the back of which is adsorbed and connected to the surface of the iron core. Power is supplied to the iron core through the distributor to make the iron core a positive magnetic block. The iron core with opposite magnetic properties forms a magnetic connection with the negative magnetic block, ensuring a stable connection between the storage frame 13 and the box body 1.

[0065] In some embodiments, as Figure 1 and Figure 2 As shown, a baffle 16 is rotatably provided on the box body 1 corresponding to the second accommodating cavity 12 , and the baffle 16 is used to cover the top of the second accommodating cavity 12 . A pull rod 17 is rotatably provided on the box body 1 , and the length of the pull rod 17 is adjustable.

[0066] By rotating the baffle 16, the opening of the second accommodating chamber 12 can be opened and closed, and the adjustment component 4 in the second accommodating chamber 12 can be protected. At the same time, a rotatable pull rod 17 is provided to facilitate personnel to pull when moving the box body 1, saving time and effort.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0069] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0070] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0071] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0072] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A portable device for monitoring tunnel deformation, characterized in that: include: A box, a monitor, and a first connecting unit, wherein the box includes a first accommodating chamber and a second accommodating chamber, a storage frame is slidably provided in the first accommodating chamber, a third accommodating chamber for accommodating the monitor is limited in the storage frame, the box is provided with running wheels, the first connecting unit includes a fixing plate and a mounting plate, the position of the monitor is adjustable and the mounting plate is rotatably provided on the side of the fixing plate away from the monitor, and a first connecting portion is provided on the mounting plate; an adjusting component, the adjusting component being disposed in the first accommodating cavity and being height-adjustable; The second connecting unit includes a first rod and a first plate. The other end of the first rod is connected to the adjustment assembly. A second connecting portion is provided on the first plate. The second connecting portion is detachably connected to the first connecting portion.

2. The portable device for monitoring tunnel deformation according to claim 1, characterized in that: The first connecting unit includes a first connecting rod and multiple second connecting rods, one end of the first connecting rod is connected to the fixed plate ball joint, the other end of the first connecting rod is fixedly connected to the monitor, multiple second connecting rods are arranged at circumferential intervals around the first connecting rod and are fixedly connected to the fixed plate, the other end of the second connecting rod is in contact with the monitor, and the length of the second connecting rod is adjustable.

3. The portable device for monitoring tunnel deformation according to claim 2, characterized in that: Multiple second connecting rods are arranged at an angle, and the distance between any two second connecting rods increases in the direction away from the fixed plate. An abutment plate is rotatably provided on one end of the second connecting rod away from the fixed plate, and the abutment plate is used to abut against the end face of the monitor.

4. The portable device for monitoring tunnel deformation according to claim 1, characterized in that: The first connecting unit includes a first drive motor, a protective ring and a connecting bearing. The first drive motor is arranged on the mounting plate. The output shaft of the first drive motor is fixedly connected to the fixed plate. The protective ring is arranged between the fixed plate and the mounting plate and is sleeved on the first drive motor. The connecting bearing is arranged on the protective ring and connected to the fixed plate or the mounting plate.

5. The portable device for monitoring tunnel deformation according to claim 1, characterized in that: The first connecting portion is an inserting rod, and the second connecting portion is a socket provided on the first plate, and the inserting rod is plugged into and matched with the socket.

6. The portable device for monitoring tunnel deformation according to claim 5, characterized in that: The insert rod is provided with a limiting hole extending in the radial direction. The first plate is slidably provided with a limiting plate. The cross-sectional size of the limiting plate is the same as that of the limiting hole. The limiting plate is used to be plugged into the limiting hole.

7. The portable device for monitoring tunnel deformation according to claim 1, characterized in that: The adjustment component is a foldable mechanical arm, one end of the mechanical arm is rotatably connected to the bottom wall of the second accommodating cavity, and the first rod is provided at the other end of the mechanical arm.

8. The portable device for monitoring tunnel deformation according to claim 1, characterized in that: It includes a third connecting unit, the length of the first rod is adjustable, the third connecting unit includes a second rod and a second plate, the second rod is rotatably arranged on a side of the first plate close to the first rod, and a third connecting part is provided on the second plate, and the third connecting part is detachably connected to the first connecting part.

9. The portable device for monitoring tunnel deformation according to claim 1, characterized in that: The opening of the first accommodating cavity is provided on one side of the box body. A first magnetic component is provided in the first accommodating cavity. A second magnetic component is correspondingly provided on the storage frame. The first magnetic component is used to be magnetically connected to the second magnetic component.

10. The portable device for monitoring tunnel deformation according to claim 1, characterized in that: A baffle is rotatably provided on the box body corresponding to the second accommodating cavity, and the baffle is used to cover the top of the second accommodating cavity. A pull rod is rotatably provided on the box body, and the length of the pull rod is adjustable.

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