CN214893114U

CN214893114U - Tunnel internal diameter rapid detection instrument

Info

Publication number: CN214893114U
Application number: CN202121536515.5U
Authority: CN
Inventors: 刘君伟; 刘兆平; 蒋炜
Original assignee: Shanghai Huahuan Electronic Technology Co ltd
Current assignee: Shanghai Huahuan Electronic Technology Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-11-26
Anticipated expiration: 2031-07-07

Abstract

The utility model belongs to the technical field of tunnel construction, in particular to a rapid detecting instrument for tunnel inner diameter, which comprises a movable base, wherein the bottom of the movable base is fixedly provided with a movable wheel, a fixed cylinder is fixedly connected with the center of the top of the movable base, a movable rod is arranged in the fixed cylinder, the top end of the movable rod movably extends to the upper part of the fixed cylinder and is fixedly connected with a leveling plate; moving grooves are symmetrically formed in the top of the moving base on two sides of the fixed cylinder, and adjusting mechanisms are symmetrically arranged in the two moving grooves; the top of the leveling plate is provided with a bearing plate, and the top of the bearing plate is fixedly provided with a laser range finder; the top of the leveling plate is provided with a level gauge; the utility model is convenient for adjusting the measuring height and the horizontal position of the instrument, and is flexible and convenient to use; in addition, the laser range finder is convenient to level, so that the measurement precision of the laser range finder can be improved, and errors are reduced.

Description

Tunnel internal diameter rapid detection instrument

Technical Field

The utility model relates to a tunnel construction technical field specifically is a tunnel internal diameter short-term test instrument.

Background

Along with the construction of a large amount of subways and underground pipe galleries in China, a large amount of underground engineering adopts shield method tunnel construction, the lining of a subway shield tunnel is generally formed by assembling pipe pieces, a large number of joints are the most obvious characteristics of the subway shield tunnel, the joints have great influence on the mechanical property of a tunnel structure, once the assembling size deviation is overlarge, the joints are greatly deformed to generate a stress concentration phenomenon, the pipe pieces are staggered, the pipe pieces are cracked seriously, a series of hazards such as water leakage and the like are caused, the assembling size deviation is overlarge, the shield tail brush is not tightly attached to the outside of the pipe pieces, the shield tail sealing fails, slurry outside the pipe pieces flows into the tunnel under construction, soil outside the pipe pieces runs off to cause cavities, the ground subsides collapse is caused, and the safety of ground surface roads and buildings is influenced. Therefore, the inner diameter of the segment tunnel needs to be detected, and the deviation is timely corrected according to real-time measurement data, so that the method has important significance for controlling the safety of the segment tunnel structure.

The existing rapid tunnel inner diameter detection instrument cannot adjust the measured position according to actual practical requirements, and has poor flexibility; in addition, the laser range finder cannot be leveled in the measuring process, so that the measuring precision is influenced, and the error is large.

Disclosure of Invention

An object of the utility model is to provide a tunnel internal diameter short-term test instrument to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a tunnel inner diameter rapid detection instrument comprises a movable base, wherein a movable wheel is fixedly mounted at the bottom of the movable base, a fixed cylinder is fixedly connected at the center of the top of the movable base, a movable rod is arranged in the fixed cylinder, and the top end of the movable rod movably extends to the upper part of the fixed cylinder and is fixedly connected with a leveling plate; moving grooves are symmetrically formed in the top of the moving base on two sides of the fixed cylinder, and adjusting mechanisms are symmetrically arranged in the two moving grooves; the top of the leveling plate is provided with a bearing plate, and the top of the bearing plate is fixedly provided with a laser range finder; and a level gauge is arranged at the top of the leveling plate.

Preferably, the number of the moving wheels is four, and the moving wheels are arranged at the bottom of the moving base in a rectangular array; the moving wheel is provided with a brake pad.

Preferably, the adjusting mechanism comprises a sliding block, a first connecting piece, a second connecting piece and a support rod; a screw rod penetrates through the inner screw of the sliding block, one end of the screw rod is rotatably connected with the inner side wall of the moving groove, and the other end of the screw rod movably penetrates through the moving groove and is fixedly connected with a rotating button; the supporting rod is obliquely arranged, the bottom end of the supporting rod is movably connected with the first connecting piece, and the top end of the supporting rod is movably connected with the second connecting piece; the bottom of the first connecting piece is fixedly connected to the top of the sliding block, and the top of the second connecting piece is fixedly connected to the bottom of the leveling plate.

Preferably, a first moving block and a second moving block are fixedly connected to two sides of the bottom of the bearing plate respectively, and the first moving block and the second moving block are both in sliding connection with a guide sliding groove formed in the top of the leveling plate; and the top of the bearing plate is movably provided with a fastening bolt, and the head end of the fastening bolt passes through a through hole formed in the second moving block and then is connected with the bottom wall in the guide sliding groove.

Preferably, the bottom wall in one of the guide sliding chutes is provided with connecting holes in a linear array, and the connecting holes and the through holes are correspondingly arranged and have the same specification.

Preferably, a push-pull handle is fixedly mounted at the top of the right side of the movable base.

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

the utility model measures the inner diameter of the pipe sheet tunnel through the laser range finder, and the measurement is convenient and quick; the rotary buttons on the two sides can be rotated to drive the screw rod to rotate, so that the sliding block moves along the screw rod, the inclination angle of the supporting rod is changed, the height of the laser range finder can be adjusted according to actual use requirements, and the use is flexible; the utility model discloses judge whether the leveling board is in the horizontality according to the spirit level, through rotating one of them side knob, can slightly adjust the leveling board, easy operation conveniently adjusts laser range finder to improve laser range finder's measurement accuracy, reduce the error; through removing the loading board and fixing through fastening bolt, conveniently adjust laser rangefinder's level measurement position.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the movable base of the present invention;

fig. 3 is a schematic structural view of the leveling plate of the present invention;

fig. 4 is a schematic view of the inverted structure of the loading plate of the present invention.

In the figure: 1. moving the base; 2. a moving wheel; 3. a fixed cylinder; 4. a movable rod; 5. leveling; 6. a moving groove; 7. an adjustment mechanism; 71. a slider; 72. a screw rod; 73. a rotation knob; 74. a first connecting member; 75. a second connecting member; 76. a strut; 8. a carrier plate; 9. a laser range finder; 10. a level gauge; 11. a first moving block; 12. a second moving block; 13. a guide chute; 14. fastening a bolt; 15. a through hole; 16. connecting holes; 17. push-pull handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: a tunnel inner diameter rapid detection instrument comprises a movable base 1, wherein a movable wheel 2 is fixedly mounted at the bottom of the movable base 1, a fixed cylinder 3 is fixedly connected at the center of the top of the movable base 1, a movable rod 4 is arranged in the fixed cylinder 3, and the top end of the movable rod 4 movably extends to the upper part of the fixed cylinder 3 and is fixedly connected with a leveling plate 5; moving grooves 6 are symmetrically formed in the top of the moving base 1 on two sides of the fixed cylinder 3, and adjusting mechanisms 7 are symmetrically arranged in the two moving grooves 6; the top of the leveling plate 5 is provided with a bearing plate 8, and the top of the bearing plate 8 is fixedly provided with a laser range finder 9; the leveling plate 5 is provided with a level 10 on the top.

Furthermore, four moving wheels 2 are arranged at the bottom of the moving base 1 in a rectangular array; remove and install the brake block on the wheel 2, can fix the instrument, and then stability when can improving the instrument measurement.

Further, the adjusting mechanism 7 includes a sliding block 71, a first connecting member 74, a second connecting member 75, and a supporting rod 76; a screw rod 72 is spirally penetrated through the slide block 71, one end of the screw rod 72 is rotatably connected with the inner side wall of the moving groove 6, and the other end movably penetrates through the moving groove 6 and is fixedly connected with a rotating button 73; the supporting rod 76 is obliquely arranged, the bottom end of the supporting rod 76 is movably connected with the first connecting piece 74, and the top end of the supporting rod 76 is movably connected with the second connecting piece 75; the bottom of the first connecting piece 74 is fixedly connected to the top of the sliding block 71, and the top of the second connecting piece 75 is fixedly connected to the bottom of the leveling plate 5.

Further, a first moving block 11 and a second moving block 12 are fixedly connected to two sides of the bottom of the bearing plate 8 respectively, and both the first moving block 11 and the second moving block 12 are slidably connected with a guide sliding groove 13 formed in the top of the leveling plate 5; the top of the bearing plate 8 is movably provided with a fastening bolt 14, and the head end of the fastening bolt 14 passes through a through hole 15 formed in the second moving block 12 and then is connected with the inner bottom wall of the guide chute 13.

Furthermore, a linear array of connecting holes 16 is formed in the bottom wall of one of the guide chutes 13, and the connecting holes 16 are arranged corresponding to the through holes 15 and have the same specification.

Further, a push-pull handle 17 is fixedly installed at the top of the right side of the movable base 1.

The working principle is as follows: when the laser range finder is used, the push-pull handle 17 is matched with the moving wheel 2, so that the laser range finder can be pushed to a designated place conveniently, when the height of the laser range finder 9 needs to be adjusted, the rotating buttons 73 on the two sides of the moving base 1 are rotated, the rotating buttons 73 drive the screw rod 72 to rotate, when the screw rod 72 rotates, the two sliding blocks 71 move along the screw rod 72 and are close to or far away from each other, the inclination angle of the supporting rod 76 is changed, further the height adjustment of the laser range finder 9 is realized, the operation is simple, the height of the laser range finder 9 can be adjusted according to actual use requirements, and the use is flexible; whether the leveling plate 5 is in a horizontal state or not can be judged according to the level gauge 10, when the laser range finder 9 is leveled, the rotating button 73 on the lower side of the leveling plate 5 is rotated, so that the supporting rod 76 on the lower side is rotated, the leveling plate 5 can be finely adjusted, the laser range finder 9 is ensured to be in the horizontal state, the operation is simple, the measurement precision of the laser range finder 9 can be improved, and errors can be reduced; when the horizontal measurement position of the laser range finder 9 needs to be adjusted, the fastening bolt 14 is detached, the bearing plate 8 is released from being fixed, after the bearing plate 8 is pushed to move to a proper position, the bearing plate is connected with the corresponding connecting hole 16 through the fastening bolt 14, the laser range finder 9 can be fixed again, the operation is simple, and the adjustment is convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A rapid tunnel inner diameter detection instrument is characterized by comprising a movable base (1), wherein a movable wheel (2) is fixedly mounted at the bottom of the movable base (1), a fixed cylinder (3) is fixedly connected to the center of the top of the movable base (1), a movable rod (4) is arranged in the fixed cylinder (3), and the top end of the movable rod (4) movably extends to the upper part of the fixed cylinder (3) and is fixedly connected with a leveling plate (5); moving grooves (6) are symmetrically formed in the top of the moving base (1) on two sides of the fixed cylinder (3), and adjusting mechanisms (7) are symmetrically arranged in the two moving grooves (6); a bearing plate (8) is arranged at the top of the leveling plate (5), and a laser range finder (9) is fixedly arranged at the top of the bearing plate (8); the top of the leveling plate (5) is provided with a level (10).

2. The instrument for rapidly detecting the inner diameter of the tunnel according to claim 1, wherein: the number of the moving wheels (2) is four, and the moving wheels are arranged at the bottom of the moving base (1) in a rectangular array; the moving wheel (2) is provided with a brake pad.

3. The instrument for rapidly detecting the inner diameter of the tunnel according to claim 1, wherein: the adjusting mechanism (7) comprises a sliding block (71), a first connecting piece (74), a second connecting piece (75) and a support rod (76); a screw rod (72) penetrates through the sliding block (71) in a spiral mode, one end of the screw rod (72) is rotatably connected with the inner side wall of the moving groove (6), and the other end of the screw rod movably penetrates through the moving groove (6) and is fixedly connected with a rotating button (73); the supporting rod (76) is obliquely arranged, the bottom end of the supporting rod (76) is movably connected with the first connecting piece (74), and the top end of the supporting rod (76) is movably connected with the second connecting piece (75); the bottom of the first connecting piece (74) is fixedly connected to the top of the sliding block (71), and the top end of the second connecting piece (75) is fixedly connected to the bottom of the leveling plate (5).

4. The instrument for rapidly detecting the inner diameter of the tunnel according to claim 1, wherein: a first moving block (11) and a second moving block (12) are fixedly connected to two sides of the bottom of the bearing plate (8) respectively, and the first moving block (11) and the second moving block (12) are in sliding connection with a guide sliding groove (13) formed in the top of the leveling plate (5); the top of the bearing plate (8) is movably provided with a fastening bolt (14), and the head end of the fastening bolt (14) passes through a through hole (15) formed in the second moving block (12) and then is connected with the inner bottom wall of the guide sliding groove (13).

5. The instrument for rapidly detecting the inner diameter of the tunnel according to claim 4, wherein: connecting holes (16) are formed in the inner bottom wall of one of the guide sliding grooves (13) in a linear array mode, and the connecting holes (16) and the through holes (15) are correspondingly arranged and are consistent in specification.

6. The instrument for rapidly detecting the inner diameter of the tunnel according to claim 1, wherein: the top of the right side of the movable base (1) is fixedly provided with a push-pull handle (17).