CN216386854U

CN216386854U - Underground structure health monitoring device based on thermal expansion coefficient and load strain

Info

Publication number: CN216386854U
Application number: CN202122543745.0U
Authority: CN
Inventors: 白杰
Original assignee: Suzhou Shencheng Underground Space Research Institute Co ltd
Current assignee: Suzhou Shencheng Underground Space Research Institute Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-04-26
Anticipated expiration: 2031-10-21

Abstract

The utility model provides an underground structure health monitoring device based on thermal expansion coefficient and load strain, which relates to the technical field of underground structure health monitoring and comprises a mounting frame, wherein a long rod bolt penetrates through the center of the top of the mounting frame, the long rod bolt is arranged to facilitate the disc to move through rotating the long rod bolt, the disc is rotatably connected with an L-shaped plate through the long rod bolt, the L-shaped plate is rotatably connected with a fixed shaft to enable a mounting block to rotate within a certain angle range, and further, personnel can conveniently adjust the emission angle of an ultrasonic detector, so that better monitoring inside the structure is realized.

Description

Underground structure health monitoring device based on thermal expansion coefficient and load strain

Technical Field

The utility model relates to the technical field of health monitoring of underground structures, in particular to an underground structure health monitoring device based on a thermal expansion coefficient and load strain.

Background

Underground structures are divided into arch structures, circular and rectangular tubular structures, framework structures, thin shell structures and special-shaped structures according to the structural form. The loads borne by the underground structure are classified into the following three types according to the action characteristics and the conditions which may occur in use: namely permanent (primary) loads, variable (additional) loads and accidental (extraordinary) loads.

Underground structure is in the construction use, because the weight at its top is heavier, has heavier pressure to underground structure, and the material of building underground structure moreover is because the change of temperature, can cause the material to rock because of expend with heat and contract with cold, and then influences underground structure's stability, consequently needs personnel's regular the measuring, but to the remote area, the time that measuring personnel wasted when measuring is longer, and efficiency is lower moreover.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, when an underground structure is built and used, the top of the underground structure is heavier, the underground structure is stressed heavier, and the stability of the underground structure is influenced due to the fact that materials for building the underground structure are likely to shake due to thermal expansion and cold contraction due to temperature change, so that personnel are required to detect the underground structure regularly, but for remote areas, the detection personnel waste longer time during detection and have lower efficiency.

In order to achieve the purpose, the utility model adopts the following technical scheme: an underground structure health monitoring device based on thermal expansion coefficient and load strain comprises a mounting frame, wherein a long rod bolt is arranged at the center of the top of the mounting frame in a threaded penetrating manner, a disc is fixedly connected to the bottom end face of the long rod bolt, guide grooves are respectively formed in the center of one side opposite to the mounting frame, cylindrical blocks are slidably connected to the positions, close to the top, in the guide grooves, two cylindrical blocks are arranged, a mounting block is fixedly connected between the two cylindrical blocks, two fixing seats are fixedly connected to the center of the top of the mounting block, a fixing shaft is arranged at the center of the top of the mounting block, L-shaped plates are respectively arranged on two sides of the shaft surface of the fixing shaft in a rotating and penetrating manner, supporting blocks are respectively fixedly connected to the front side and the rear side of the bottom of the mounting block, springs are respectively fixedly connected to the bottom positions of the outer surfaces on two sides of the supporting blocks, the bottom two sides of the mounting block are respectively fixedly connected with a rectangular block, a guide rod is fixedly arranged at the center of one side of the rectangular block in a penetrating mode, two end faces of the guide rod are respectively connected with a connecting block in a rotating mode, and clamping blocks are respectively arranged on the bottom two sides of the mounting block.

Preferably, the mounting bracket is U type setting, the both sides surface bottom position of mounting bracket is fixedly connected with mounting panel respectively.

Preferably, the surface of the fixed shaft and one side of the two fixed seats are fixedly arranged in a penetrating manner, and the opposite side of the two L-shaped plates is rotatably connected with the surface of the disc.

Preferably, the centers of the opposite sides of the two supporting blocks are respectively provided with an adjusting bolt, and the surface of the adjusting bolt and the center of one side of the supporting block are in threaded through arrangement.

Preferably, one end of the spring is fixedly connected with a fixing plate, and the fixing plate is fixedly connected with the connecting block.

Preferably, an ultrasonic detector is arranged between the two clamping blocks, and the front surface and the rear surface of each clamping block are fixedly connected with the surface of the adjacent connecting block.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, by arranging the mounting block, the rectangular block, the guide rod, the connecting block, the clamping block and the spring, the ultrasonic detector can be clamped tightly by the adjusting bolts through rotating the two adjusting bolts, meanwhile, the two clamping blocks can clamp the two side surfaces of the ultrasonic detector through the elastic action of the spring, so that the position of the ultrasonic detector is fixed, the position of the ultrasonic detector is fixed through fixing the position of the mounting frame, and further, the detection of fine cracks in the structure is realized through the ultrasonic detector, namely, automatic detection is realized, meanwhile, wireless transmission of data is realized, and the periodic manual detection of personnel is avoided.

2. According to the utility model, the long rod bolt is arranged, so that the disc can move conveniently by rotating the long rod bolt, the mounting block can rotate within a certain angle range by the rotary connection of the disc and the L-shaped plate and the rotary connection of the L-shaped plate and the fixed shaft, and further, personnel can adjust the emission angle of the ultrasonic detector conveniently, so that better monitoring of the inside of the structure can be realized.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic bottom view of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic diagram of the right view structure of FIG. 2 according to the present invention.

Illustration of the drawings: 1. a mounting frame; 2. a long rod bolt; 3. mounting a plate; 4. a guide groove; 5. a cylindrical block; 6. mounting blocks; 7. an L-shaped plate; 8. a fixed shaft; 9. a fixed seat; 10. a clamping block; 11. an ultrasonic detector; 12. a fixing plate; 13. a spring; 14. a support block; 15. connecting blocks; 16. adjusting the bolt; 17. a rectangular block; 18. a guide bar; 19. a disk.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Example 1, as shown in fig. 1 to 3, an underground structure health monitoring device based on thermal expansion coefficient and load strain comprises a mounting frame 1, wherein the mounting frame 1 is in a U-shaped configuration, the bottom positions of the outer surfaces of the two sides of the mounting frame 1 are respectively and fixedly connected with a mounting plate 3, a long rod bolt 2 is arranged at the center of the top of the mounting frame 1 in a threaded manner, a disc 19 is fixedly connected to the bottom end surface of the long rod bolt 2, a guide groove 4 is respectively formed at the center of the opposite side of the mounting frame 1, two cylindrical blocks 5 are slidably connected to the inside of the guide groove 4 near the top position, two cylindrical blocks 5 are arranged, a mounting block 6 is fixedly connected between the two cylindrical blocks 5, two fixing seats 9 are fixedly connected to the center of the top of the mounting block 6, a fixing shaft 8 is arranged at the center of the top of the mounting block 6, and L-shaped plates 7 are respectively and rotatably arranged at the two sides of the shaft surface of the fixing shaft 8, the surface of the fixed shaft 8 and one side of the two fixed seats 9 are fixedly arranged in a penetrating way, and the opposite sides of the two L-shaped plates 7 are rotatably connected with the surface of the disc 19.

The whole embodiment 1 achieves the effects that the installation plate 3 and the installation surface are fixed by using expansion bolts, meanwhile, the cylindrical block 5 is arranged in the guide groove 4, the cylindrical block 5 can slide and rotate in the guide groove 4, the installation block 6 is rotated while the installation block 6 fixedly connected with the cylindrical block 5 is adjusted, the fixing of the fixing shaft 8 is facilitated by arranging the fixing seat 9, the L-shaped plate 7 and the fixing shaft 8 are rotatably arranged in a penetrating way, the L-shaped plate 7 and the disc 19 are rotatably connected, the installation block 6, the fixing seat 9, the fixing shaft 8, the L-shaped plate 7, the disc 19 and the long rod bolt 2 are connected, the installation block 6 is lifted by rotating the long rod bolt 2, and the ultrasonic detector 11 is tightly attached to the monitoring surface, when the ultrasonic detector 11 is attached to the monitoring surface, the disc 19 continuously descends by rotating the long rod bolt 2, the L-shaped plate 7 is connected with the disc 19 in a rotating mode, the L-shaped plate 7 is connected with the fixed shaft 8 in a rotating mode, the L-shaped plate 7 inclines, the fixed shaft 8 and the fixed seat 9 incline, the installation block 6 inclines at an angle, and the emission angle of the ultrasonic detector 11 is adjusted.

Embodiment 2, as shown in fig. 1 to 3, support blocks 14 are fixedly connected to front and rear sides of the bottom of an installation block 6, an adjusting bolt 16 is arranged at a center of one opposite side of each of the two support blocks 14, a surface of the adjusting bolt 16 and a center of one side of each of the support blocks 14 are arranged in a threaded manner, springs 13 are fixedly connected to bottom positions of outer surfaces of two sides of each of the support blocks 14, a fixing plate 12 is fixedly connected to one end of each of the springs 13, the fixing plate 12 is fixedly connected to a connection block 15, rectangular blocks 17 are fixedly connected to two sides of the bottom of the installation block 6, a guide rod 18 is fixedly arranged at a center of one side of each of the rectangular blocks 17 in a threaded manner, two end surfaces of each of the guide rods 18 are rotatably connected to the connection block 15, clamp blocks 10 are respectively arranged at two sides of the bottom of the installation block 6, an ultrasonic detector 11 is arranged between the two clamp blocks 10, and front and rear surfaces of each of the clamp blocks 10 are fixedly connected to surfaces of the adjacent connection blocks 15.

The effect that its whole embodiment 2 reached is, spring 13 is normal state, when installing ultrasonic detector 11, the personnel is connected through the rotation of connecting block 15 and guide arm 18, and through the fixed connection of clamp splice 10 and two adjacent connecting blocks 15, therefore the personnel can stir two clamp splices 10 outwards, then put ultrasonic detector 11 in the bottom of installation piece 6, and the elasticity through spring 13 resets and realizes that two clamp splices 10 firmly cliies ultrasonic detector 11, and through rotatory adjusting bolt 16, through the threaded connection of adjusting bolt 16 and supporting shoe 14, guarantee that adjusting bolt 16 can not take place relative position skew with supporting shoe 14 when tightly propping against the surface of ultrasonic detector 11.

Working principle; at first personnel stir two clamp splice 10 outwards and realize that spring 13 is tensile, then put ultrasonic detector 11 between two clamp splice 10, and realize two clamp splice 10 firmly to clip ultrasonic detector 11 through the automatic re-setting of spring 13 itself, and realize ultrasonic detector 11's rigidity through rotation adjusting bolt 16, then pass the through-hole that sets up on the mounting panel 3 through expansion bolts and realize the rigidity of mounting panel 3 and monitoring face, and then realize the rigidity of mounting bracket 1, then personnel realize through rotatory stock bolt 2 that mounting block 6 drives ultrasonic detector 11 and removes and realize that ultrasonic detector 11 tightly laminates the monitoring face surface, and realize the control of the direction of rotation of mounting block 6 through manual mounting block 6, and realize the control of the rotation angle of mounting block 6 through rotatory stock bolt 2.

It should be noted that various standard components used in the present invention are commercially available, non-standard components are specially customized, and the connection manner adopted in the present invention, such as bolting, welding, etc., is also a very common means in the mechanical field, and the inventor does not need to describe herein any further.

The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides an underground structure health monitoring device based on coefficient of thermal expansion and load strain, includes mounting bracket (1), its characterized in that: the mounting frame is characterized in that a long rod bolt (2) is arranged at the center of the top of the mounting frame (1) in a threaded penetrating manner, a disc (19) is fixedly connected to the bottom end face of the long rod bolt (2), guide grooves (4) are respectively formed in the center of one side of the mounting frame (1) opposite to the center of the top, two cylindrical blocks (5) are slidably connected to the inner portion of each guide groove (4) close to the top, two mounting blocks (6) are fixedly connected between the two cylindrical blocks (5), two fixing seats (9) are fixedly connected to the center of the top of each mounting block (6), a fixing shaft (8) is arranged at the center of the top of each mounting block (6), L-shaped plates (7) are respectively arranged at the two sides of the shaft surface of each fixing shaft (8) in a rotating and penetrating manner, and supporting blocks (14) are respectively fixedly connected to the front side and the rear side of the bottom of each mounting block (6), the spring (13) is fixedly connected to the bottom of the outer surface of the two sides of the supporting block (14) respectively, the rectangular block (17) is fixedly connected to the bottom of the mounting block (6) respectively, a guide rod (18) is fixedly arranged at the center of one side of the rectangular block (17) in a penetrating mode, two end faces of the guide rod (18) are rotatably connected with connecting blocks (15) respectively, and clamping blocks (10) are arranged on the two sides of the bottom of the mounting block (6) respectively.

2. A subsurface structure health monitoring device based on coefficient of thermal expansion and load strain as claimed in claim 1 wherein: the mounting bracket (1) is arranged in a U shape, and the bottom positions of the outer surfaces of the two sides of the mounting bracket (1) are fixedly connected with mounting plates (3) respectively.

3. A subsurface structure health monitoring device based on coefficient of thermal expansion and load strain as claimed in claim 1 wherein; the surface of the fixed shaft (8) and one side of the two fixed seats (9) are fixedly arranged in a penetrating mode, and the opposite side of the L-shaped plate (7) is rotatably connected with the surface of the disc (19).

4. A subsurface structure health monitoring device based on coefficient of thermal expansion and load strain as claimed in claim 1 wherein: adjusting bolts (16) are respectively arranged at the centers of the opposite sides of the two supporting blocks (14), and the surfaces of the adjusting bolts (16) and the center of one side of the supporting block (14) are in threaded penetration arrangement.

5. A subsurface structure health monitoring device based on coefficient of thermal expansion and load strain as claimed in claim 1 wherein: one end fixedly connected with fixed plate (12) of spring (13), fixed plate (12) and connecting block (15) fixed connection.

6. A subsurface structure health monitoring device based on coefficient of thermal expansion and load strain as claimed in claim 1 wherein: an ultrasonic detector (11) is arranged between the two clamping blocks (10), and the front surface and the rear surface of each clamping block (10) are fixedly connected with the surfaces of the adjacent connecting blocks (15).