Monitoring equipment for tunnel construction

Abstract

The invention discloses monitoring equipment for tunnel construction, and relates to the technical field of monitoring equipment. The device comprises a bottom rod, an elastic inner rod is arranged at the top of the bottom rod, a mounting head is arranged at the top of the elastic inner rod, monitoring equipment is mounted on the mounting head, a plurality of outer snake-bone barrels are arranged between the mounting head and the bottom rod, and hinge seats are arranged at the tops of the outer snake-bone barrels and the bottom rod; the plurality of outer snake-bone barrels, the bottom rod and the mounting head are hinged together through the hinge seat, and the outer snake-bone barrels are connected to the outer side of the elastic inner rod in a sleeving manner. The monitoring equipment is installed in the mode of being tightly attached to the inner wall of the tunnel, the recovery elastic force above the elastic inner rod faces the outside of the tunnel, the gravity of the monitoring equipment gives bending force towards the interior of the tunnel to the elastic inner rod, therefore, the elastic force of the elastic inner rod can play a damping role on the monitoring equipment, and the damping distance is far larger than the conventional damping distance; and therefore, the monitoring equipment cannot be damaged even in dangerous environments such as blasting and the like.

Description

Technical Field

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

[0002] With the continuous advancement of modern engineering construction, tunnel construction, as an important component of infrastructure construction, is widely used in transportation, energy, water conservancy and other fields. During tunnel construction, the construction environment is complex and the working conditions are difficult. Therefore, to ensure construction safety and project quality, the installation and use of monitoring equipment has become particularly important.

[0003] Tunnel construction sites are characterized by unique environments, confined spaces, and susceptibility to harsh conditions. Therefore, the installation and placement of monitoring equipment has always been a technical challenge. A utility model patent (publication number: CN213452751U) discloses a monitoring device for tunnel construction, comprising a mounting plate having a first threaded hole formed on the front surface, a fixing screw movably connected to the inner wall of the first threaded hole, a support plate fixedly connected to one side of the mounting plate, a fixing slot formed on the front surface of the support plate, a support rod movably connected to the inner wall of the fixing slot, a stabilizing plate fixedly connected to one end of the support rod, and a monitoring device body fixedly connected to the other end of the support rod, an adjustment plate fixedly connected to the outer wall of the support rod, a second threaded hole formed on the front surface of the adjustment plate, and an adjustment shaft movably connected to the inner wall of the second threaded hole. The installation method of monitoring equipment in this patent and the prior art both require workers to use climbing equipment to install it at a height, which not only makes subsequent inspection and maintenance difficult, but also because tunnel construction is a dynamic process, as construction progresses, the installation position of the monitoring equipment needs to be adjusted according to the construction progress, and the equipment needs to be recalibrated or relocated regularly, which brings additional workload to the installation. The current fixed installation method is inconvenient to migrate. For example, if a conventional mounting pole is used for installation, since the inner wall of the tunnel is arc-shaped, the mounting pole will seriously interfere with the tunnel construction, and the installation is relatively limited. Moreover, since the tunnel will generate large vibrations during construction, the sources of which may include blasting, the use of mechanical equipment, vehicle driving, changes in soil and rock, etc., especially large vibrations such as blasting will cause serious damage to the monitoring equipment. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and provide a monitoring device for tunnel construction.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: The utility model provides a kind of monitoring equipment for tunnel construction, including bottom bar, the top of the bottom bar is provided with elastic inner rod, the top of the elastic inner rod is provided with mounting head, and monitoring equipment is installed on mounting head, and the mounting head is provided with several outer snake bone cylinders between bottom bar, and outer snake bone cylinder and the top of bottom bar are provided with hinged seat, and hinged seat is hinged together with several outer snake bone cylinders, bottom bar and mounting head, and outer snake bone cylinder is sleeved on the outside of elastic inner rod; The left side of the hinged seat is provided with two groups of guide sliding mouths, and the right side of the hinged seat is fixedly installed with two groups of hydraulic cylinders, the inside of the two groups of hydraulic cylinders is provided with a telescopic piston rod, the telescopic piston rod penetrates into the inside of the hinged seat, and one end in the inside of the hinged seat is fixedly installed with a triangular wedge, the triangular wedge is slidably connected in the guide sliding mouth, and the two groups of triangular wedges are respectively located at the front end and the rear end of the hinged place of the outer snake bone cylinder.

[0006] Further, the bottom of the bottom bar is sleeved with a wall-hanging base.

[0007] Further, the wall-hanging base is fixedly installed on the inner wall of the tunnel by bolts.

[0008] Further, the wall-hanging base is adhesively connected to the inner wall of the tunnel.

[0009] Further, the two sides of the bottom bar are both installed with control hydraulic cylinders, the two groups of control hydraulic cylinders are respectively connected to the hydraulic cylinders at the front end and the rear end of the hinged place of all the outer snake bone cylinders through hydraulic pipes, and the hydraulic cylinder interface is located at one end close to the hinged seat, a top spring is arranged between the telescopic piston rod and the inner wall of the hydraulic cylinder, the top spring is used to push the telescopic piston rod to extend, a sealing nut is arranged on the top of the control hydraulic cylinder, a piston is arranged in the inside of the control hydraulic cylinder, a piston screw rod is arranged on the top of the piston, and the piston screw rod is threadedly connected in the sealing nut.

[0010] Further, a detachable support is arranged on the outside of the bottom bar, and the control hydraulic cylinder is installed on the detachable support.

[0011] Further, a rotating handle is arranged on the top of the piston screw rod.

[0012] Further, the distance between the two groups of telescopic piston rods and the distance between the two groups of triangular wedges are the same as the diameter of the elastic inner rod.

[0013] Further, a hoop is arranged on the top of the monitoring equipment, and the hoop is fixedly installed on the mounting head.

[0014] Further, a mounting positioning groove is arranged on the outside of the mounting head, and the hoop is sleeved in the mounting positioning groove.

[0015] The utility model has the beneficial effects as follows: 1. The present invention bends the elastic inner rod to a bending angle greater than the arc angle of the tunnel inner wall, then controls the operation of the hydraulic cylinder on the outer side of the bend, retracts the telescopic piston rod, and drives the triangular wedge blocks to be inserted between adjacent outer serpentine tubes, thereby locking the angles of the adjacent outer serpentine tubes and limiting the angle of the device. The bottom rod is then fitted to the lowest part of the tunnel inner wall, and then the telescopic piston rod on the outer side of the bend is controlled to extend. Under the elastic force of the elastic inner rod, the outer serpentine tube is closely attached to the inner wall of the tunnel. The monitoring equipment can be installed without climbing, and the impact on the tunnel construction space is relatively small. At the same time, the device can be used in different tunnels and has a wide range of applications.

[0016] 2. The present invention installs the monitoring equipment in close contact with the inner wall of the tunnel. The direction of the restoring elastic force above the elastic inner rod is toward the outside of the tunnel, and the gravity of the monitoring equipment gives the elastic inner rod a bending force toward the inside of the tunnel. During the installation of the monitoring equipment, only the outer side of the elastic bend is limited to prevent the elastic inner rod from recovering and rebounding. However, the elastic inner rod can bend inward. Therefore, the elastic force of the elastic inner rod can be used to reduce shock for the monitoring equipment, and the shock-absorbing distance is much greater than the conventional shock-absorbing distance, so that the monitoring equipment will not be damaged even in dangerous environments such as blasting.

[0017] 3. The present invention controls the operation of the hydraulic cylinder on the inner side of the bend, retracts the telescopic piston rod, and controls the distance between the triangular wedge block and the upper outer serpentine tube. It can adjust the shock absorption intensity and limit the shock absorption distance to prevent it from colliding with other equipment under normal circumstances. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation of the monitoring equipment of the present invention; Figure 2 It is a schematic diagram of the overall structure of the monitoring device of the present invention; Figure 3 It is a schematic diagram of the lower half of the structure of the monitoring device of the present invention; Figure 4 It is a schematic diagram of the upper part of the structure of the monitoring device of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the hinge seat of the present invention; Figure 6 It is a schematic diagram of the maintenance of the monitoring equipment of the present invention.

[0019] Figure numerals: 1. Bottom rod; 2. Elastic inner rod; 3. Mounting head; 4. Monitoring equipment; 41. Clamp; 5. Outer snake tube; 6. Articulated seat; 61. Guide slide; 62. Hydraulic cylinder; 63. Telescopic piston rod; 64. Top spring; 65. Triangular wedge; 7. Wall-mounted base; 8. Removable bracket; 9. Control hydraulic cylinder; 91. Sealing nut; 92. Piston screw; 10. Hydraulic pipe; 101. Quick-connect plug. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Example 1, as Figures 1-6 As shown, a monitoring device for tunnel construction includes a bottom bar 1, an elastic inner bar 2 is provided on the top of the bottom bar 1, a mounting head 3 is provided on the top of the elastic inner bar 2, a monitoring device 4 is mounted on the mounting head 3, a plurality of outer serpentine tubes 5 are provided between the mounting head 3 and the bottom bar 1, and an articulated seat 6 is provided on the top of the outer serpentine tubes 5 and the bottom bar 1. The articulated seat 6 hinges the plurality of outer serpentine tubes 5, the bottom bar 1 and the mounting head 3 together, and the outer serpentine tubes 5 are sleeved on the outside of the elastic inner bar 2; Two sets of guide slides 61 are provided on the left side of the articulated seat 6, and two sets of hydraulic cylinders 62 are fixedly installed on the right side of the articulated seat 6. Telescopic piston rods 63 are provided inside the two sets of hydraulic cylinders 62. The telescopic piston rods 63 pass through the interior of the articulated seat 6, and a triangular wedge block 65 is fixedly installed at one end inside the articulated seat 6. The triangular wedge block 65 is slidably connected in the guide slide 61. The two sets of triangular wedge blocks 65 are respectively located at the front end and the rear end of the hinge of the outer serpentine tube 5.

[0022] During installation, place the bottom bar 1 close to the bottom of the tunnel wall and fix it, then bend the whole thing to the Figure 6 The telescopic piston rod 63 on the outside of the bend is controlled to retract, and the telescopic piston rod 63 drives the triangular wedge 65 to be inserted between the adjacent outer serpentine tubes 5, limiting the recovery of the elastic inner rod 2. The device as a whole is bent, and then the monitoring equipment 4 is installed on the mounting head 3. After the installation is completed, the telescopic piston rod 63 on the outside of the bend is controlled to extend, and the telescopic piston rod 63 drives the triangular wedge 65 away from the outer serpentine tube 5. Under the elastic force of the elastic inner rod 2, the elastic inner rod 2 swings toward the inner wall of the tunnel until the outer serpentine tube 5 is closely attached to the inner wall of the tunnel. In this way, the device can be applied to tunnels of different specifications, and there is no need to climb for installation. It is easy to install. During subsequent migration, it is only necessary to remove the bottom rod 1 from the inner wall of the tunnel and re-fix it in the migration position.

[0023] Then, according to the current construction environment, the telescopic piston rod 63 on the inner side of the bend is controlled to retract, and the telescopic piston rod 63 drives the triangular wedge block 65 to be inserted between the adjacent outer serpentine tubes 5, but does not touch the outer serpentine tubes 5. There is a certain distance between the outer serpentine tubes 5, and this distance is the shock-absorbing distance. Since the elastic force given to the device by the elastic inner rod 2 is directed toward the outside of the tunnel, the outer serpentine tubes 5 on the outer side of the bend are locked by the triangular wedge block 65, so the elastic inner rod 2 can only bend inward, and the gravity of the monitoring equipment 4 makes the elastic inner rod 2 tend to bend inward, so there is a certain shock-absorbing distance on the inside of the bend, which can dampen the shock of the monitoring equipment 4. Compared with the existing spring shock absorption, the vibration energy is absorbed and consumed by the bending deformation of the elastic inner rod 2. This deformation method is smoother and more stable than the elastic recovery of the spring. During the deformation process of the elastic bent rod, the vibration is gradually consumed slowly, the shock-absorbing effect is more stable, and it is not easy to produce a rebound effect.

[0024] When violent construction such as blasting is carried out inside the tunnel, the smaller shock-absorbing distance cannot achieve a safe shock-absorbing effect and is likely to damage the monitoring equipment 4. Therefore, at this time, the triangular wedge block 65 on the inner side of the control bend is completely away from the outer serpentine tube 5, and the elastic inner rod 2 is completely unrestricted in bending inward. The shock-absorbing distance is much greater than the conventional shock-absorbing distance, so that the monitoring equipment 4 will not be damaged even in dangerous environments such as blasting.

[0025] During maintenance, the triangular wedge 65 on the inner side of the control bend is completely away from the outer serpentine tube 5, and the triangular wedge 65 on the outer side of the control bend is continued to be inserted between the adjacent outer serpentine tubes 5, driving the elastic inner rod 2 to bend, and the entire device is bent into an attached Figure 6 No need to climb up for maintenance, easy maintenance and high maintenance efficiency.

[0026] Embodiment 2, based on the above embodiment, further includes that the bottom of the bottom rod 1 is sleeved with a wall-mounted base 7 .

[0027] Furthermore, the wall-mounted base 7 is fixed to the inner wall of the tunnel by bolts.

[0028] By setting the wall-mounted base 7, the bottom rod 1 does not need to be against the bottom surface of the tunnel, and can be fixed at any position on the inner wall of the tunnel. The installation height of the monitoring equipment 4 can be adjusted as needed, and the bottom rod 1 is off the ground, which makes wiring convenient and safer. This embodiment uses bolts for fixing and installation, which is more secure.

[0029] Embodiment 3, based on the above embodiment, further includes that the wall-mounted base 7 is bonded to the inner wall of the tunnel by glue, and the bonding method is more convenient for subsequent relocation.

[0030] Embodiment 4, on the basis of the above embodiment, further includes that control hydraulic cylinders 9 are installed on both sides of the bottom rod 1, and the two groups of control hydraulic cylinders 9 are respectively connected to the hydraulic cylinders 62 at the front and rear ends of the hinges of all outer serpentine cylinders 5 through hydraulic pipes 10, and the interface of the hydraulic cylinder 62 is located at one end close to the hinge seat 6, and a top spring 64 is provided between the telescopic piston rod 63 and the inner wall of the hydraulic cylinder 62, and the top spring 64 is used to push the telescopic piston rod 63 to extend, and a sealing nut 91 is provided on the top of the control hydraulic cylinder 9, and a piston is provided inside the control hydraulic cylinder 9, and a piston screw 92 is provided on the top of the piston, and the piston screw 92 is threadedly connected to the sealing nut 91.

[0031] Furthermore, a rotary handle is provided on the top of the piston screw 92 .

[0032] By rotating the piston screw 92 by turning the handle, when the piston screw 92 is rotated downward, the hydraulic oil in the hydraulic cylinder 9 is controlled to enter the hydraulic cylinder 62 through the hydraulic pipe 10, and the hydraulic pressure pushes the telescopic piston rod 63 to retract. When the piston screw 92 is rotated upward, the top spring 64 pushes the telescopic piston rod 63 to extend. By setting two groups of control hydraulic cylinders 9, the telescopic piston rods 63 on the outer and inner sides of the bend can be controlled to retract and retract respectively, and the control is simple.

[0033] Embodiment 5, based on the above embodiment, further includes: a detachable bracket 8 is provided on the outer side of the bottom rod 1, a control hydraulic cylinder 9 is installed on the detachable bracket 8, and the hydraulic pipe 10 is connected to the control hydraulic cylinder 9 through a quick-connect plug 101.

[0034] By setting the detachable bracket 8 and the quick-connect plug 101, the control hydraulic cylinder 9 can be separated. After the installation is completed, the device can be moved away, reducing the overall space occupied by the device.

[0035] Embodiment 6, based on the above embodiment, further includes that the spacing between the front and rear groups of telescopic piston rods 63 and the spacing between the front and rear groups of triangular wedge blocks 65 are the same as the diameter of the elastic inner rod 2.

[0036] Through this design, when the triangular wedge block 65 is inserted between adjacent outer serpentine tubes 5, the elastic inner rod 2 can be confined between the outer serpentine tubes 5. When the triangular wedge block 65 is away from the outer serpentine tubes 5, the telescopic piston rod 63 confines the elastic inner rod 2 between the outer serpentine tubes 5, and can correct the overall bending of the elastic inner rod 2, so that the bending of the outer serpentine tube 5 can be synchronized with the bending of the elastic inner rod 2, and the overall stability is high.

[0037] Embodiment 7, based on the above embodiment, further includes: a clamp 41 is provided on the top of the monitoring device 4 , and the clamp 41 is fixedly mounted on the mounting head 3 .

[0038] Furthermore, an installation positioning groove is provided on the outer side of the installation head 3 , and the clamp 41 is sleeved in the installation positioning groove.

[0039] By providing the clamp 41 and the installation positioning groove, the monitoring device 4 can be fixed on the installation head 3 more quickly and stably, and the installation effect is good.

[0040] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A monitoring device for tunnel construction, comprising a bottom rod (1), characterized in that: The top of the bottom rod (1) is provided with an elastic inner rod (2), the top of the elastic inner rod (2) is provided with a mounting head (3), a monitoring device (4) is mounted on the mounting head (3), a plurality of outer serpentine tubes (5) are provided between the mounting head (3) and the bottom rod (1), and a hinge seat (6) is provided on the top of the outer serpentine tubes (5) and the bottom rod (1), the hinge seat (6) hinges the plurality of outer serpentine tubes (5), the bottom rod (1) and the mounting head (3) together, and the outer serpentine tubes (5) are sleeved on the outside of the elastic inner rod (2); Two groups of guide sliding openings (61) are provided on the left side of the articulated seat (6), and two groups of hydraulic cylinders (62) are fixedly installed on the right side of the articulated seat (6). Telescopic piston rods (63) are provided inside the two groups of hydraulic cylinders (62). The telescopic piston rods (63) pass through the interior of the articulated seat (6), and a triangular wedge (65) is fixedly installed at one end inside the articulated seat (6). The triangular wedge (65) is slidably connected to the guide sliding opening (61). The two groups of triangular wedges (65) are respectively located at the front end and the rear end of the hinge of the outer snake bone tube (5).

2. The tunnel construction monitoring device according to claim 1, characterized in that: The bottom of the bottom rod (1) is sleeved with a wall-mounted base (7).

3. The tunnel construction monitoring device according to claim 2, characterized in that: The wall-mounted base (7) is fixedly mounted on the inner wall of the tunnel by means of bolts.

4. The tunnel construction monitoring device according to claim 2, characterized in that: The wall-mounted base (7) is bonded to the inner wall of the tunnel by glue.

5. The tunnel construction monitoring device according to claim 1, characterized in that: A control hydraulic cylinder (9) is installed on both sides of the bottom rod (1). The two groups of control hydraulic cylinders (9) are respectively connected to the hydraulic cylinders (62) at the front and rear ends of the hinged parts of all the outer snake bone cylinders (5) through hydraulic pipes (10), and the interface of the hydraulic cylinder (62) is located at one end close to the hinge seat (6). A top spring (64) is provided between the telescopic piston rod (63) and the inner wall of the hydraulic cylinder (62). The top spring (64) is used to push the telescopic piston rod (63) to extend. A sealing nut (91) is provided on the top of the control hydraulic cylinder (9). A piston is provided inside the control hydraulic cylinder (9). A piston screw (92) is provided on the top of the piston. The piston screw (92) is threadedly connected to the sealing nut (91).

6. The tunnel construction monitoring device according to claim 5, characterized in that: A detachable bracket (8) is provided on the outer side of the bottom rod (1), a control hydraulic cylinder (9) is mounted on the detachable bracket (8), and the hydraulic pipe (10) is connected to the control hydraulic cylinder (9) via a quick-connect plug (101).

7. The tunnel construction monitoring device according to claim 6, characterized in that: A rotary handle is provided on the top of the piston screw (92).

8. The tunnel construction monitoring device according to claim 1, characterized in that: The spacing between the front and rear groups of telescopic piston rods (63) and the spacing between the front and rear groups of triangular wedges (65) are the same as the diameter of the elastic inner rod (2).

9. The tunnel construction monitoring device according to claim 1, characterized in that: A clamp (41) is provided on the top of the monitoring device (4), and the clamp (41) is fixedly mounted on the mounting head (3).

10. The tunnel construction monitoring device according to claim 9, characterized in that: An installation positioning groove is provided on the outer side of the installation head (3), and the clamp (41) is sleeved in the installation positioning groove.

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