A settlement displacement observation auxiliary device for foundation pit monitoring

Abstract

The present invention discloses a settlement displacement observation auxiliary device for foundation pit monitoring, which relates to the technical field of foundation pit monitoring, and comprises a folding base, a mounting mechanism is arranged on the top of the folding base, an observation point determination mechanism is arranged on the top of the mounting mechanism, an observation equipment clamping and fixing mechanism is arranged on the top of the observation point determination mechanism, a driving mechanism is arranged on the top of the inner cavity of the mounting mechanism, a pushing mechanism is arranged on the bottom of the driving mechanism, and a locking and traveling mechanism is arranged on the bottom of the inner cavity of the mounting mechanism; the driving mechanism drives the pushing mechanism to move downward, and the pushing mechanism pushes the locking and traveling mechanism after moving downward, and the locking and traveling mechanism releases the lock between the folding base after being pushed. The present invention has a higher degree of automation, and can complete the measurement of multiple workstations without frequent manual disassembly and movement to obtain the actual settlement displacement observation point, and there is no need to dismantle the equipment and install the observation equipment later, thereby ensuring the subsequent observation accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit monitoring, and in particular to a settlement displacement observation auxiliary device for foundation pit monitoring. Background Art

[0002] Foundation pit monitoring refers to the observation and analysis of changes in foundation pit rock and soil properties, support structure displacement and surrounding environmental conditions during foundation pit excavation and underground engineering construction, and timely feedback of monitoring results to predict the development of deformation and stable state that will result from further construction. It is an important link to ensure the smooth construction of foundation pit projects.

[0003] The invention patent with publication number CN11698973 discloses a settlement displacement observation auxiliary device for foundation pit monitoring, including a main control body, a sliding rail is fixedly connected to the lower end of the main control body, a sliding pressing body is slidably connected to the outer end of the sliding rail, a pressing port is opened at the middle end of the sliding pressing body, and a pair of mutually meshing synchronous gears are rotatably connected to the middle end of the main control body, which can achieve the preset observation point always being kept under the condition of equal front and rear sight distances through synchronized measuring rolls.

[0004] However, after actual application by technicians in this field, it was found that the above-mentioned auxiliary device still has some shortcomings. The most obvious one is that when determining the point with the smallest temperature difference on the front and rear observation routes, multiple site selection and multiple detection operations are required. Only after the point selection is completed can the observation equipment be set up and settlement observation be carried out. In this process, it is inevitable to disassemble and move the auxiliary device multiple times, which is too manpower-consuming and the point selection process is time-consuming.

[0005] In addition, after the point is determined, the auxiliary equipment needs to be dismantled to facilitate the installation of subsequent observation equipment. During this process, errors may easily occur between the installation location of the observation equipment and the actual point, thereby affecting the accuracy of subsequent observations.

[0006] Therefore, it is necessary to invent a settlement displacement observation auxiliary device for foundation pit monitoring to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a settlement displacement observation auxiliary device for foundation pit monitoring, which is provided with a folding base, an installation mechanism, an observation equipment clamping and fixing mechanism, a driving mechanism, a pushing mechanism and a locking and traveling mechanism, so that the driving mechanism can be used to drive the pushing mechanism to move downward, and the pushing mechanism pushes the locking and traveling mechanism after moving downward. After the locking and traveling mechanism is pushed, the lock between the folding base and the folding base is released, thereby providing conditions for subsequent workstation switching, and then the driving mechanism drives the locking and traveling mechanism, so that the locking and traveling mechanism drives the observation point determination mechanism and the observation equipment clamping and fixing mechanism to move to the next workstation through the installation mechanism, so as to start In order to solve the problem proposed in the above background technology that when determining the point with the smallest temperature difference on the observation path before and after, multiple site selection and multiple detection operations are required. Only after the point selection is completed can the observation equipment be set up and settlement observation be carried out. In this process, it is inevitable to disassemble and move the auxiliary equipment multiple times, which is too manpower-consuming and time-consuming. In addition, after the point is determined, the auxiliary equipment needs to be dismantled to facilitate the subsequent installation of observation equipment. In this process, it is easy for errors to occur between the installation position of the observation equipment and the actual point, thereby affecting the accuracy of subsequent observations.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a settlement displacement observation auxiliary device for foundation pit monitoring, comprising a folding base, a mounting mechanism is arranged on the top of the folding base, an observation point determination mechanism is arranged on the top of the mounting mechanism, an observation equipment clamping and fixing mechanism is arranged on the top of the observation point determination mechanism, a driving mechanism is arranged on the top of the inner cavity of the mounting mechanism, a pushing mechanism is arranged on the bottom of the driving mechanism, and a locking and traveling mechanism is arranged on the bottom of the inner cavity of the mounting mechanism;

[0009] The driving mechanism drives the pushing mechanism to move downward, and the pushing mechanism pushes the locking travel mechanism after moving downward. After being pushed, the locking travel mechanism releases the lock between the folding base, and the driving mechanism drives the locking travel mechanism. The locking travel mechanism drives the observation point determination mechanism and the observation equipment clamping and fixing mechanism to move to the next workstation through the installation mechanism.

[0010] Preferably, the folding base comprises a first L-shaped base plate, a second L-shaped base plate, a first guide rail, a second guide rail, a locking groove, a reference column, a first magnet and a second magnet;

[0011] The second L-shaped base plate is rotatably connected to the right end of the first L-shaped base plate through a pin shaft, the first guide rail is fixedly set on the top of the first L-shaped base plate, the second guide rail is fixedly set on the top of the second L-shaped base plate, and there are multiple locking grooves and reference columns. The multiple locking grooves are evenly opened on both sides of the first guide rail and the second guide rail, and the multiple reference columns are evenly fixed on both sides of the top of the first L-shaped base plate and both sides of the top of the second L-shaped base plate. The first magnet is fixedly set on the right end of the second L-shaped base plate, and the second magnet is fixedly set on the right side of the observation point determination mechanism.

[0012] Preferably, the mounting mechanism comprises a columnar housing, an extension rod, auxiliary wheels and a mounting plate;

[0013] The observation point determination mechanism is fixedly set on the top of the cylindrical shell, the cylindrical shell is located on the top of the first L-shaped bottom plate and is slidably set on the outside of the first guide rail, and there are four extension rods and four auxiliary wheels. The four extension rods are evenly fixed on the bottom of the outer side of the cylindrical shell, and the four auxiliary wheels are rotatably sleeved on the outside of the four extension rods through bearings. The mounting plate is set on the top of the inner cavity of the cylindrical shell.

[0014] Preferably, the observation equipment clamping and fixing mechanism comprises a mounting seat, a clamping plate and a bidirectional screw;

[0015] The mounting seat is fixedly set on the top of the observation point determination mechanism, and two clamping plates are provided. The two clamping plates are symmetrically arranged on the inner side of the mounting seat, and the bidirectional screw penetrates the mounting seat and is rotatably connected to the mounting seat through a bearing. The two clamping plates are both sleeved on the outer side of the bidirectional screw and are both transmission-connected to the bidirectional screw.

[0016] Preferably, the driving mechanism comprises a reciprocating screw, a driving motor, an outer sleeve, a first spring, an inner sleeve, a guide plate, an outer sleeve plate and a rack;

[0017] The reciprocating screw passes through the mounting plate and is rotatably connected to the mounting plate through a bearing, the driving motor is fixedly arranged on the top of the mounting plate and is transmission-connected to the reciprocating screw, the outer sleeve, the first spring and the inner sleeve are sequentially sleeved on the outside of the reciprocating screw from top to bottom, the outer sleeve is transmission-connected to the reciprocating screw, the first spring is fixedly connected between the outer sleeve and the inner sleeve, the inner sleeve is slidingly connected to the reciprocating screw and is slidably arranged on the inside of the outer sleeve in a vertical direction, the guide plate is fixedly sleeved on the top of the outside of the outer sleeve and is slidably nested on the inside of the columnar shell in a vertical direction, the outer sleeve plate is fixedly sleeved on the bottom of the outside of the outer sleeve, and the rack is fixedly arranged on the bottom of the outer sleeve plate.

[0018] Preferably, the pushing mechanism comprises an end plate and a pushing block;

[0019] The end plate is fixedly arranged at the bottom end of the inner sleeve, the push block is fixedly arranged at the bottom of the end plate, and inclined surfaces are arranged on both sides of the bottom of the push block.

[0020] Preferably, the locking travel mechanism comprises an inverted U-shaped frame, a rotating shaft, a travel wheel, a gear, a pointer, a C-shaped locking rod, a guide rod and a second spring;

[0021] The inverted U-shaped frame is sleeved on the outside of the first guide rail, the rotating shaft is rotatably nested in the side of the inverted U-shaped frame through a bearing, the rotating shaft passes through the columnar shell and is rotatably connected to the columnar shell through a bearing, the traveling wheel and the gear are sleeved on the outside of the rotating shaft in sequence from the inside to the outside, the traveling wheel is fixedly connected to the rotating shaft, the gear is connected to the rotating shaft through an overrunning clutch, the pointer is fixedly set on the outer end of the rotating shaft, the C-shaped locking rod slides through the outer wall of the inverted U-shaped frame and extends to the inner side of the inverted U-shaped frame, the guide rod slides through the C-shaped locking rod and is fixedly connected to the outer wall of the inverted U-shaped frame, and the second spring is sleeved on the outside of the guide rod and fixedly connected between the C-shaped locking rod and the guide rod.

[0022] Technical effects and advantages of the present invention:

[0023] The present invention is provided with a folding base, an installation mechanism, an observation equipment clamping and fixing mechanism, a driving mechanism, a pushing mechanism and a locking and traveling mechanism, so that the driving mechanism can be used to drive the pushing mechanism to move downward, and the pushing mechanism pushes the locking and traveling mechanism after moving downward. After being pushed, the locking and traveling mechanism releases the lock between the folding base, thereby providing conditions for subsequent workstation switching. Then the driving mechanism drives the locking and traveling mechanism, and the locking and traveling mechanism drives the observation point determination mechanism and the observation equipment clamping and fixing mechanism to move to the next workstation through the installation mechanism, so as to start the measurement of the next workstation. Compared with the same type of device in the prior art, the present invention has a higher degree of automation, and can complete the measurement of multiple workstations without frequent manual disassembly and movement to obtain the actual settlement displacement observation point. There is no need to dismantle the equipment and install the observation equipment subsequently, thereby ensuring the subsequent observation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the folding base structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the clamping and fixing mechanism of the observation equipment of the present invention;

[0027] Figure 4 It is a schematic diagram of the structures of the mounting mechanism, the driving mechanism and the pushing mechanism of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the locking travel mechanism of the present invention.

[0029] In the figure: 1, folding base; 11, first L-shaped bottom plate; 12, second L-shaped bottom plate; 13, first guide rail; 14, second guide rail; 15, locking groove; 16, reference column; 17, first magnet; 18, second magnet; 2, mounting mechanism; 21, columnar shell; 22, extension rod; 23, auxiliary wheel; 24, mounting plate; 3, observation point determination mechanism; 4, observation equipment clamping and fixing mechanism; 41, mounting seat; 42, clamping plate; 43, two-way Screw; 5. Driving mechanism; 51. Reciprocating screw; 52. Driving motor; 53. Outer sleeve; 54. First spring; 55. Inner sleeve; 56. Guide plate; 57. Outer sleeve; 58. Rack; 6. Pushing mechanism; 61. End plate; 62. Push block; 7. Locking travel mechanism; 71. Inverted U-shaped frame; 72. Rotating shaft; 73. Travel wheel; 74. Gear; 75. Pointer; 76. C-shaped locking rod; 77. Guide rod; 78. Second spring. DETAILED DESCRIPTION

[0030] 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.

[0031] The present invention provides Figure 1-Figure 5 The settlement displacement observation auxiliary device for foundation pit monitoring shown in the figure comprises a folding base 1, a mounting mechanism 2 is arranged on the top of the folding base 1, an observation point determination mechanism 3 is arranged on the top of the mounting mechanism 2, an observation equipment clamping and fixing mechanism 4 is arranged on the top of the observation point determination mechanism 3, a driving mechanism 5 is arranged on the top of the inner cavity of the mounting mechanism 2, a pushing mechanism 6 is arranged on the bottom of the driving mechanism 5, and a locking and moving mechanism 7 is arranged on the bottom of the inner cavity of the mounting mechanism 2;

[0032] The driving mechanism 5 drives the pushing mechanism 6 to move downward, and the pushing mechanism 6 pushes the locking travel mechanism 7 after moving downward. After being pushed, the locking travel mechanism 7 releases the lock between the folding base 1. The driving mechanism 5 drives the locking travel mechanism 7, and the locking travel mechanism 7 drives the observation point determination mechanism 3 and the observation equipment clamping and fixing mechanism 4 to move to the next workstation through the installation mechanism 2.

[0033] It should be noted that the observation point determination mechanism 3 is a solution that has been disclosed in the prior art and is not an essential technical feature of the present application, so the present application does not elaborate on its specific structure.

[0034] like Figure 2 As shown, the folding base 1 includes a first L-shaped base plate 11, a second L-shaped base plate 12, a first guide rail 13, a second guide rail 14, a locking groove 15, a reference column 16, a first magnet 17 and a second magnet 18, wherein the second L-shaped base plate 12 is rotatably connected to the right end of the first L-shaped base plate 11 through a pin shaft, the first guide rail 13 is fixedly arranged on the top of the first L-shaped base plate 11, the second guide rail 14 is fixedly arranged on the top of the second L-shaped base plate 12, a plurality of the locking grooves 15 and the reference column 16 are arranged, and a plurality of the locking grooves 15 are evenly opened on both sides of the first guide rail 13 and the second guide rail 14, a plurality of the reference columns 16 are evenly fixedly arranged on both sides of the top of the first L-shaped base plate 11 and on both sides of the top of the second L-shaped base plate 12, the first magnet 17 is fixedly arranged on the right end of the second L-shaped base plate 12, and the second magnet 18 is fixedly arranged on the right side of the observation point determination mechanism 3.

[0035] By setting the above structure, the device can be placed on the center line of the settlement reference point and the settlement observation point, and the second L-shaped bottom plate 12 is pushed to rotate the second L-shaped bottom plate 12 to a horizontal state with the pin as the center. During this process, the first magnet 17 and the second magnet 18 are separated from each other, and then the two fixed rope loops of the observation point measuring mechanism 3 are respectively put on the bolts of the settlement reference point and the settlement observation point to start the measurement operation, and then the positions of the two observation blocks in the observation point measuring mechanism 3 are observed to determine the difference in average temperature on the front and rear observation paths, thereby completing the measurement of the current workstation.

[0036] like Figure 4 As shown, the mounting mechanism 2 includes a cylindrical shell 21, an extension rod 22, auxiliary wheels 23 and a mounting plate 24, wherein the observation point determination mechanism 3 is fixedly arranged on the top of the cylindrical shell 21, the cylindrical shell 21 is located on the top of the first L-shaped bottom plate 11 and is slidably arranged on the outside of the first guide rail 13, four extension rods 22 and four auxiliary wheels 23 are arranged, the four extension rods 22 are evenly fixed on the bottom of the outer side of the cylindrical shell 21, the four auxiliary wheels 23 are rotatably sleeved on the outside of the four extension rods 22 through bearings, and the mounting plate 24 is arranged on the top of the inner cavity of the cylindrical shell 21.

[0037] By setting the above structure, during the movement of the columnar shell 21, the four auxiliary wheels 23 support the columnar shell 21, and at the same time, the observation point determination mechanism 3, the observation equipment clamping and fixing mechanism 4 and the locking and moving mechanism 7 move right synchronously.

[0038] like Figure 3As shown, the observation equipment clamping and fixing mechanism 4 includes a mounting seat 41, a clamping plate 42 and a bidirectional screw 43, wherein the mounting seat 41 is fixedly arranged on the top of the observation point determination mechanism 3, and two clamping plates 42 are provided, and the two clamping plates 42 are symmetrically arranged on the inner side of the mounting seat 41, and the bidirectional screw 43 passes through the mounting seat 41 and is rotatably connected to the mounting seat 41 through a bearing, and the two clamping plates 42 are both sleeved on the outer side of the bidirectional screw 43 and are both transmission-connected to the bidirectional screw 43.

[0039] By setting the above structure, after determining the actual settlement displacement observation point, the bottom of the observation equipment is placed between the two clamping plates 42, and then the bidirectional screw 43 is rotated, so that the bidirectional screw 43 drives the two clamping plates 42 to approach each other to complete the clamping and fixing of the observation equipment, and then the foundation pit monitoring operation is carried out through the observation equipment, and the equipment does not need to be dismantled to install the observation equipment, thereby ensuring the subsequent observation accuracy.

[0040] like Figure 4 As shown, the driving mechanism 5 includes a reciprocating screw 51, a driving motor 52, an outer sleeve 53, a first spring 54, an inner sleeve 55, a guide plate 56, an outer sleeve 57 and a rack 58, wherein the reciprocating screw 51 passes through the mounting plate 24 and is rotatably connected to the mounting plate 24 through a bearing, the driving motor 52 is fixedly arranged on the top of the mounting plate 24 and is transmission-connected to the reciprocating screw 51, and the outer sleeve 53, the first spring 54 and the inner sleeve 55 are sequentially sleeved on the outside of the reciprocating screw 51 from top to bottom. The outer sleeve 53 is transmission-connected with the reciprocating screw 51, the first spring 54 is fixedly connected between the outer sleeve 53 and the inner sleeve 55, the inner sleeve 55 is slidingly connected with the reciprocating screw 51 and is slidably arranged on the inner side of the outer sleeve 53 along the vertical direction, the guide plate 56 is fixedly sleeved on the outer top of the outer side of the outer sleeve 53 and is slidably nested on the inner side of the columnar shell 21 along the vertical direction, the outer sleeve plate 57 is fixedly sleeved on the outer bottom of the outer side of the outer sleeve 53, and the rack 58 is fixedly arranged on the bottom of the outer sleeve plate 57.

[0041] like Figure 4 As shown, the pushing mechanism 6 includes an end plate 61 and a pushing block 62, wherein the end plate 61 is fixedly disposed at the bottom end of the inner sleeve 55, and the pushing block 62 is fixedly disposed at the bottom of the end plate 61, and both sides of the bottom of the pushing block 62 are provided with inclined surfaces.

[0042] By setting the above-mentioned driving mechanism 5 and pushing mechanism 6, the driving motor 52 can drive the reciprocating screw 51 to rotate after it is started. When the reciprocating screw 51 rotates, it drives the outer sleeve 53 guided by the guide plate 56 to move downward. When the outer sleeve 53 moves downward, the inner sleeve 55 is driven downward by the first spring 54, and the rack 58 is driven downward by the outer sleeve plate 57. When the inner sleeve 55 moves downward, the push block 62 is driven downward by the end plate 61. When the push block 62 moves downward, it pushes the four adjacent C-shaped locking rods 76.

[0043] like Figure 5 As shown, the locking travel mechanism 7 includes an inverted U-shaped frame 71, a rotating shaft 72, a traveling wheel 73, a gear 74, a pointer 75, a C-shaped locking rod 76, a guide rod 77 and a second spring 78, wherein the inverted U-shaped frame 71 is sleeved and arranged on the outside of the first guide rail 13, the rotating shaft 72 is rotatably nested and arranged on the side of the inverted U-shaped frame 71 through a bearing, the rotating shaft 72 passes through the columnar housing 21 and is rotatably connected to the columnar housing 21 through a bearing, and the traveling wheel 73 and the gear 74 are sleeved and arranged on the rotating shaft 72 from the inside to the outside. On the outside of the shaft 72, the traveling wheel 73 is fixedly connected to the rotating shaft 72, the gear 74 is connected to the rotating shaft 72 through an overrunning clutch, the pointer 75 is fixedly arranged at the outer end of the rotating shaft 72, the C-shaped locking rod 76 slides through the outer wall of the inverted U-shaped frame 71 and extends to the inner side of the inverted U-shaped frame 71, the guide rod 77 slides through the C-shaped locking rod 76 and is fixedly connected to the outer wall of the inverted U-shaped frame 71, and the second spring 78 is sleeved on the outside of the guide rod 77 and fixedly connected between the C-shaped locking rod 76 and the guide rod 77.

[0044] By setting the above structure, when the push block 62 moves downward, it pushes the four adjacent C-shaped locking rods 76. After being pushed, the C-shaped locking rods 76 move outward along the guide rods 77. At this time, the second spring 78 is compressed by the C-shaped locking rods 76. At the same time, the C-shaped locking rods 76 gradually move outward from the inner side of the adjacent locking grooves 15 until the C-shaped locking rods 76 move out from the inner side of the locking grooves 15 to release the lock, thereby providing conditions for subsequent station switching.

[0045] After the rack 58 meshes with the adjacent gear 74, as the rack 58 continues to move downward, the gear 74 drives the traveling wheel 73 to rotate through the rotating shaft 72. When the traveling wheel 73 rotates, it drives the cylindrical shell 21 to move right. During the rightward movement of the cylindrical shell 21, the four auxiliary wheels 23 support the cylindrical shell 21. At the same time, the observation point measurement mechanism 3, the observation equipment clamping and fixing mechanism 4 and the locking travel mechanism 7 move to the next measurement station. At this time, the outer sleeve 53 moves to the bottom of the reciprocating thread on the outside of the reciprocating screw 51. Subsequently, as the reciprocating screw 51 continues to rotate, the outer sleeve 53 moves up and resets. During the upward movement of the outer sleeve 53, the compressed first spring 54 gradually recovers, and at the same time, the rack 58 drives the gear 74 to rotate in the opposite direction. At this time, due to the limitation of the overrunning clutch, the gear 74 cannot drive the rotating shaft 72 to rotate.

[0046] The present invention also discloses a method for using a settlement displacement observation auxiliary device for foundation pit monitoring, the method specifically comprising the following steps:

[0047] S1. When determining the settlement displacement observation point, place the device on the midline between the settlement reference point and the settlement observation point, push the second L-shaped bottom plate 12, and rotate the second L-shaped bottom plate 12 to a horizontal state with the pin as the center. During this process, the first magnet 17 and the second magnet 18 are separated from each other, and then the two fixed rope loops of the observation point determination mechanism 3 are respectively put on the bolts of the settlement reference point and the settlement observation point to start the measurement operation, and then observe the positions of the two observation blocks in the observation point determination mechanism 3 to determine the difference in average temperature on the front and rear observation paths, and then complete the measurement of the current station;

[0048] S2, start the driving motor 52. After the driving motor 52 is started, it drives the reciprocating screw 51 to rotate. When the reciprocating screw 51 rotates, it drives the outer sleeve 53 guided by the guide plate 56 to move downward. When the outer sleeve 53 moves downward, it drives the inner sleeve 55 to move downward through the first spring 54, and drives the rack 58 to move downward through the outer sleeve plate 57. When the inner sleeve 55 moves downward, it drives the push block 62 to move downward through the end plate 61. When the push block 62 moves downward, it pushes the four adjacent C-shaped locking rods 76. After being pushed, the C-shaped locking rods 76 move outward along the guide rods 77. At this time, the second spring 78 is compressed by the C-shaped locking rod 76, and at the same time, the C-shaped locking rod 76 gradually moves outward from the inner side of the adjacent locking groove 15.

[0049] S3, when the outer sleeve 53 moves downward to a first threshold, the C-shaped locking rod 76 moves out from the inner side of the locking groove 15 to release the lock. At this time, the bottom of the push block 62 is in contact with the top of the inverted U-shaped frame 71. Due to the obstruction of the inverted U-shaped frame 71, the push block 62 cannot move downward any further. Subsequently, as the outer sleeve 53 continues to move downward, the inner sleeve 55, which also cannot move downward any further, compresses the first spring 54, and the outer sleeve plate 57 continues to drive the rack 58 to move downward.

[0050] S4, when the downward movement distance of the outer sleeve 53 reaches the second threshold, the rack 58 meshes with the adjacent gear 74, and as the rack 58 continues to move downward, the gear 74 drives the traveling wheel 73 to rotate through the rotating shaft 72, and the traveling wheel 73 drives the columnar shell 21 to move rightward when rotating. During the rightward movement of the columnar shell 21, the four auxiliary wheels 23 support the columnar shell 21, and at the same time, the observation point determination mechanism 3, the observation equipment clamping and fixing mechanism 4 and the locking travel mechanism 7 move rightward synchronously;

[0051] S5, when the downward movement distance of the outer sleeve 53 reaches the third threshold, the observation point determination mechanism 3, the observation equipment clamping and fixing mechanism 4 and the locking and traveling mechanism 7 move to the next determination station, and the outer sleeve 53 moves to the bottom of the reciprocating thread on the outer side of the reciprocating screw 51. Subsequently, as the reciprocating screw 51 continues to rotate, the outer sleeve 53 moves upward and resets. During the upward movement of the outer sleeve 53, the compressed first spring 54 gradually recovers, and at the same time, the rack 58 drives the gear 74 to rotate in the opposite direction. At this time, due to the limitation of the overrunning clutch, the gear 74 cannot drive the rotating shaft 72 to rotate;

[0052] S6, when the upward movement distance of the outer sleeve 53 reaches the fourth threshold, the outer sleeve 53 arrives at the initial position, that is, the top of the reciprocating thread on the outer side of the reciprocating screw 51, and the C-shaped locking rod 76 is inserted into the inner side of the adjacent locking groove 15 again to complete the locking. Subsequently, as the reciprocating screw 51 continues to rotate, the outer sleeve 53 moves down again. During this process, the positions of the two observation blocks in the observation point determination mechanism 3 are observed again to determine the difference in average temperature on the front and rear observation paths, thereby completing the measurement of the current position;

[0053] S7, after the measurement of multiple stations is completed successively, the actual settlement displacement observation point is obtained according to the multiple measurement results, and when the C-shaped locking rod 76 is subsequently moved out from the inner side of the locking groove 15, the driving motor 52 is stopped, and then the columnar shell 21 is pushed to the left, so that the columnar shell 21 drives the observation point measurement mechanism 3 and the observation equipment clamping and fixing mechanism 4 to move to the actual settlement displacement observation point. In this process, the position of the pointer 75 and the corresponding reference column 16 is observed to ensure the leftward movement distance of the columnar shell 21;

[0054] S8. Make the driving motor 52 drive the reciprocating screw 51 to rotate in the opposite direction, so that the outer sleeve 53 moves up and resets on the outside of the reciprocating screw 51 until the C-shaped locking rod 76 is inserted into the inner side of the locking groove 15 corresponding to the actual settlement displacement observation point to complete the locking. Then, put the bottom of the observation equipment between the two clamping plates 42, and then rotate the bidirectional screw 43, so that the bidirectional screw 43 drives the two clamping plates 42 to approach each other to complete the clamping and fixing of the observation equipment, and then perform foundation pit monitoring operations through the observation equipment.

[0055] It should also be noted that the first threshold, the second threshold and the third threshold increase in sequence, and the first threshold, the second threshold, the third threshold and the fourth threshold are recorded for the convenience of accurately describing the actual working conditions of the scheme;

[0056] When the solution of the present application is actually produced, the first threshold, the second threshold, the third threshold and the fourth threshold are all specific values ​​according to the actual specifications of the reciprocating screw 51 .

[0057] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A settlement displacement observation auxiliary device for foundation pit monitoring, characterized in that: The foldable base (1) comprises a mounting mechanism (2) disposed at the top of the foldable base (1), an observation point determination mechanism (3) disposed at the top of the mounting mechanism (2), an observation device clamping and fixing mechanism (4) disposed at the top of the observation point determination mechanism (3), a driving mechanism (5) disposed at the top of the inner cavity of the mounting mechanism (2), a pushing mechanism (6) disposed at the bottom of the driving mechanism (5), and a locking and advancing mechanism (7) disposed at the bottom of the inner cavity of the mounting mechanism (2); The driving mechanism (5) drives the pushing mechanism (6) to move downward, and after the pushing mechanism (6) moves downward, it pushes the locking travel mechanism (7), and after the locking travel mechanism (7) is pushed, it releases the lock between the locking travel mechanism and the folding base (1), and the driving mechanism (5) drives the locking travel mechanism (7), and the locking travel mechanism (7) drives the observation point determination mechanism (3) and the observation equipment clamping and fixing mechanism (4) to move to the next workstation through the installation mechanism (2); The folding base (1) comprises a first L-shaped base plate (11), a second L-shaped base plate (12), a first guide rail (13), a second guide rail (14), a locking groove (15), a reference column (16), a first magnet (17) and a second magnet (18); The second L-shaped bottom plate (12) is rotatably connected to the right end of the first L-shaped bottom plate (11) via a pin shaft, the first guide rail (13) is fixedly arranged on the top of the first L-shaped bottom plate (11), the second guide rail (14) is fixedly arranged on the top of the second L-shaped bottom plate (12), a plurality of the locking grooves (15) and the reference columns (16) are provided, the plurality of the locking grooves (15) are evenly arranged on both sides of the first guide rail (13) and the second guide rail (14), a plurality of the reference columns (16) are evenly fixedly arranged on both sides of the top of the first L-shaped bottom plate (11) and on both sides of the top of the second L-shaped bottom plate (12), the first magnet (17) is fixedly arranged on the right end of the second L-shaped bottom plate (12), and the second magnet (18) is fixedly arranged on the right side of the observation point determination mechanism (3); The mounting mechanism (2) comprises a columnar housing (21), an extension rod (22), auxiliary wheels (23) and a mounting plate (24); The observation point determination mechanism (3) is fixedly arranged on the top of the columnar shell (21), the columnar shell (21) is located on the top of the first L-shaped bottom plate (11) and is slidably arranged on the outside of the first guide rail (13), the extension rods (22) and the auxiliary wheels (23) are each provided with four, the four extension rods (22) are evenly fixedly arranged on the bottom of the outside of the columnar shell (21), the four auxiliary wheels (23) are rotatably sleeved and arranged on the outside of the four extension rods (22) through bearings, and the mounting plate (24) is arranged on the top of the inner cavity of the columnar shell (21); The observation equipment clamping and fixing mechanism (4) comprises a mounting seat (41), a clamping plate (42) and a bidirectional screw (43); The mounting seat (41) is fixedly arranged on the top of the observation point determination mechanism (3), two clamping plates (42) are provided, and the two clamping plates (42) are symmetrically arranged on the inner side of the mounting seat (41), the bidirectional screw (43) passes through the mounting seat (41) and is rotatably connected to the mounting seat (41) via a bearing, and the two clamping plates (42) are both sleeved and arranged on the outer side of the bidirectional screw (43) and are both transmission-connected to the bidirectional screw (43); The driving mechanism (5) comprises a reciprocating screw (51), a driving motor (52), an outer sleeve (53), a first spring (54), an inner sleeve (55), a guide plate (56), an outer sleeve plate (57) and a rack (58); The reciprocating screw (51) passes through the mounting plate (24) and is rotatably connected to the mounting plate (24) via a bearing. The driving motor (52) is fixedly arranged on the top of the mounting plate (24) and is transmission-connected to the reciprocating screw (51). The outer sleeve (53), the first spring (54) and the inner sleeve (55) are sequentially sleeved and arranged on the outside of the reciprocating screw (51) from top to bottom. The outer sleeve (53) is transmission-connected to the reciprocating screw (51). The first spring (54) is fixedly connected to the inner sleeve (55). Between the outer sleeve (53) and the inner sleeve (55), the inner sleeve (55) is slidably connected to the reciprocating screw (51) and is slidably arranged inside the outer sleeve (53) in a vertical direction, the guide plate (56) is fixedly sleeved on the top of the outer side of the outer sleeve (53) and is slidably nested inside the columnar housing (21) in a vertical direction, the outer sleeve plate (57) is fixedly sleeved on the bottom of the outer side of the outer sleeve (53), and the rack (58) is fixedly arranged on the bottom of the outer sleeve plate (57); The pushing mechanism (6) comprises an end plate (61) and a pushing block (62); The end plate (61) is fixedly arranged at the bottom end of the inner sleeve (55), the push block (62) is fixedly arranged at the bottom of the end plate (61), and both sides of the bottom of the push block (62) are provided with inclined surfaces; The locking travel mechanism (7) comprises an inverted U-shaped frame (71), a rotating shaft (72), a travel wheel (73), a gear (74), a pointer (75), a C-shaped locking rod (76), a guide rod (77) and a second spring (78); The inverted U-shaped frame (71) is sleeved and arranged on the outside of the first guide rail (13); the rotating shaft (72) is rotatably nested and arranged on the side of the inverted U-shaped frame (71) through a bearing; the rotating shaft (72) passes through the columnar housing (21) and is rotatably connected to the columnar housing (21) through a bearing; the traveling wheel (73) and the gear (74) are sleeved and arranged on the outside of the rotating shaft (72) in sequence from the inside to the outside; the traveling wheel (73) is fixedly connected to the rotating shaft (72); the gear (74) is rotated by overrunning The clutch is connected to the rotating shaft (72), the pointer (75) is fixedly arranged on the outer end of the rotating shaft (72), the C-shaped locking rod (76) slides through the outer wall of the inverted U-shaped frame (71) and extends to the inner side of the inverted U-shaped frame (71), the guide rod (77) slides through the C-shaped locking rod (76) and is fixedly connected to the outer wall of the inverted U-shaped frame (71), and the second spring (78) is sleeved and arranged on the outer side of the guide rod (77) and is fixedly connected between the C-shaped locking rod (76) and the guide rod (77).

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