CN114893684B - Comprehensive detection device and detection method for potential safety hazards of tunnel - Google Patents
Comprehensive detection device and detection method for potential safety hazards of tunnel Download PDFInfo
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- CN114893684B CN114893684B CN202210566998.6A CN202210566998A CN114893684B CN 114893684 B CN114893684 B CN 114893684B CN 202210566998 A CN202210566998 A CN 202210566998A CN 114893684 B CN114893684 B CN 114893684B
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 13
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000006698 induction Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
Abstract
The invention relates to the technical field of tunnel equipment, in particular to a comprehensive detection device and a detection method for potential safety hazards of tunnels. A comprehensive detection device for potential safety hazards of tunnels comprises a chassis, a platform, a supporting rod, two adjusting mechanisms, a conical main gear, two sensing mechanisms and a driving mechanism. Each adjusting mechanism comprises an upper rod, a lower rod, a first sleeve rod, a second sleeve rod, a rotating rod and a gear assembly. The lower extreme of rotary rod is provided with first gear vertically. The gear assembly includes a ring gear, a disk, a bevel pinion, and a second gear. The bevel main gear is meshed with the two bevel auxiliary gears. The induction mechanism is used for enabling the rotary rod to move up and down, and the driving mechanism is used for driving the bevel main gear to rotate. The invention provides a comprehensive detection device for potential safety hazards of a tunnel, which aims to solve the problems that the levelness of an instrument cannot be ensured during measurement due to uneven ground of the tunnel during construction in the conventional tunnel construction monitoring, so that multiple measurement references are different, and the accuracy of a monitoring result is difficult to ensure.
Description
Technical Field
The invention relates to the technical field of tunnel equipment, in particular to a comprehensive detection device and a detection method for potential safety hazards of tunnels.
Background
Tunnels are buildings which are built underground, underwater or in mountain bodies, paved with railways or built on roads for motor vehicles to pass through, and can be divided into mountain tunnels, underwater tunnels and urban tunnels according to the positions of the tunnels. The tunnel construction process mainly comprises the work of tunnel planning, exploration, design, through control measurement, construction and the like. The monitoring of tunnel construction can accurately confirm deformation position and deflection, has decisive meaning to the construction time of the secondary lining of tunnel, sinks to the tunnel vault, monitors tunnel earth surface unevenness simultaneously, confirms the stability of country rock according to measured data, judges the support effect, instructs construction process prevention to collapse, guarantees construction safety. Patent 202010862257.3 discloses a tunnel construction monitoring device, comprising a supporting seat; a work table; the height adjusting mechanism is arranged above the supporting seat and connected with the supporting seat through the height adjusting mechanism, and is used for adjusting the relative distance between the workbench and the supporting seat; the two laser transmitters are respectively fixed at the left side and the right side of the construction tunnel and used for transmitting laser as horizontal references; the laser receiver is fixed on the upper surface of the workbench and is used for simultaneously receiving laser emitted by the two laser emitters; and the monitoring assembly is fixed on the upper surface of the workbench and is used for monitoring the settlement of the tunnel vault and the subsidence of the ground surface.
The structure of the invention has the advantages of the patent, but the structure of the patent is complex, and the data of the settlement of the vault and the subsidence of the earth surface of the tunnel are monitored by measuring the same point for a plurality of times, but the ground of the tunnel is not leveled during construction, so that the levelness of the instrument during measurement cannot be ensured, the benchmarks of the plurality of times are different, and the accuracy of the monitoring result is difficult to ensure.
Disclosure of Invention
The invention provides a comprehensive detection device for potential safety hazards of a tunnel, which aims to solve the problems that the levelness of an instrument cannot be ensured during measurement due to uneven ground of the tunnel during construction in the conventional tunnel construction monitoring, so that multiple measurement references are different, and the accuracy of a monitoring result is difficult to ensure.
The invention relates to a comprehensive detection device for potential safety hazards of tunnels, which adopts the following technical scheme: a comprehensive detection device for potential safety hazards of tunnels comprises a chassis, a platform, a supporting rod, two adjusting mechanisms, a conical main gear, two sensing mechanisms and a driving mechanism. The chassis is horizontally provided with two lantern rings, and the platform is arranged above the chassis and is connected with the chassis through a supporting rod. Two first connecting rods are horizontally arranged on the supporting rod, and the first connecting rods and the lantern ring are concentrically arranged.
The projection angle of the two adjusting mechanisms on the platform is 90 degrees. Each adjusting mechanism comprises an upper rod, a lower rod, a first sleeve rod, a second sleeve rod, a rotating rod and a gear assembly. The upper end of the upper rod is rotationally connected to the lower surface of the platform, the upper end of the lower rod is sleeved at the lower end of the upper rod, and the lower end of the lower rod is rotationally connected to the supporting rod. The first loop bar is arranged in the lower bar and can rotate relative to the lower bar, the lower end of the upper bar is arranged in the first loop bar and is in threaded connection with the first loop bar, and the upper end of the second loop bar is connected with the lower end of the first loop bar. The upper end of the rotating rod can be arranged at the lower end of the second sleeve rod in a vertical sliding mode, and a first gear is vertically arranged at the lower end of the rotating rod.
The gear assembly includes a ring gear, a disk, a bevel pinion, and a second gear. The annular disk is rotatably arranged on the lantern ring, and an annular disk groove is formed in the annular disk. The rim plate rotationally sets up on first connecting rod, is provided with the second connecting rod on the rim plate, and the side of rim plate is provided with the rim plate groove, and first gear meshes with rim plate or rim plate. The bevel pinion is sleeved on the second connecting rod, and the second gear is meshed with the wheel disc and the wheel ring disc. The bevel main gear is meshed with the two bevel auxiliary gears. The induction mechanism is used for enabling the rotary rod to move up and down, and the driving mechanism is used for driving the bevel main gear to rotate.
Further, each sensing mechanism comprises a round bar, a slider, two springs and a hose. The round rod is horizontally arranged on the lower surface of the platform, and a cavity is arranged in the round rod. The sliding block is slidably arranged on the round rod, the spring is sleeved on the round rod, one end of the spring is fixedly connected with the round rod, and the other end of the spring is fixedly connected with the sliding block. The upper end of the hose is connected with one end of the round rod close to the center of the platform,
and is communicated with the cavity, and the lower end of the hose is communicated with the second loop bar.
Further, a support is vertically arranged on the chassis. The driving mechanism comprises a rocker which is rotatably arranged on the support, and one end of the rocker is fixedly connected with the bevel main gear.
Further, the arc length of the wheel disc groove gradually increases outwards along the circle center of the wheel disc, and the arc length of the wheel disc groove gradually increases outwards along the circle center of the wheel disc. The wheel disc groove is arranged 180 degrees opposite to the wheel ring disc groove.
Further, the upper end of the second loop bar is in universal connection with the lower end of the first loop bar.
Further, be provided with first spout on the round bar, the slider slidable sets up in first spout, and in the cavity was inserted to slider one end, the slider other end was provided with the baffle, baffle shutoff first spout.
Further, an annular groove is formed in the peripheral wall of the second loop bar, a connecting ring is arranged at the lower end of the hose, the connecting ring is sleeved on the annular groove, and the second loop bar can rotate relative to the connecting ring.
Further, the support rod is ball hinged with the platform.
Further, a second chute is formed in the inner peripheral wall of the lower rod, a bump is arranged on the peripheral wall of the first sleeve rod, and the bump is arranged in the second chute.
The beneficial effects of the invention are as follows: because the ground is uneven, the descending heights of the first gears of the two adjusting mechanisms are inconsistent, the first gears at the higher positions of the platform are more descended, the first gears are closer to the circle center of the wheel disc, when the rocker rotates for one circle, the number of turns of the first gears is less, due to the existence of the wheel disc groove, the more the first gears which are closer to the circle center of the wheel disc are in contact with the wheel disc, the more the rocker rotates for one circle, and then the distance between the first sleeve rod and the upper rod is driven to shrink is larger. Therefore, the rocker is enabled to rotate for a circle, and the shrinkage of the two groups of first loop bars and the upper bar can be respectively adjusted, so that the simultaneous adjustment can be approximately finished.
Because the ground is uneven, the rising heights of the first gears of the two adjusting mechanisms are inconsistent, the first gears at the lower positions of the platform rise more, the first gears are closer to the edge of the annular disk, and the more the first gears need to rotate. Because the circumference of the wheel ring is larger, when the rocker rotates for one circle, the number of turns of the first gear is larger than the number of turns of the first gear which need to rotate, and the area of the engagement of the first gear and the wheel ring is reduced through the wheel ring groove, so that the number of turns of the first gear is reduced, and the end of simultaneous adjustment can be approximately achieved.
Through the relative 180 settings in wheel disk groove and ring gear disk groove, when a first gear and rim plate or ring gear disk, another first gear is in wheel disk groove and ring gear disk groove for reach laborsaving effect when rotating the rocker.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural diagram of an embodiment of a comprehensive detection device for potential safety hazards of tunnels;
FIG. 2 is a front view of an embodiment of a comprehensive detection device for potential safety hazards of tunnels of the present invention;
FIG. 3 is a cross-sectional view at A-A in FIG. 2;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is an enlarged view at B in FIG. 3;
FIG. 6 is an enlarged view at C in FIG. 3;
FIG. 7 is an exploded view of a part of the structure of the comprehensive detection device for potential safety hazards of tunnels;
FIG. 8 is a schematic structural view of a wheel disc of an embodiment of a comprehensive detection device for potential safety hazards of tunnels of the present invention;
fig. 9 is a schematic structural view of a wheel ring disc of an embodiment of a comprehensive detection device for tunnel potential safety hazards.
In the figure: 110. a platform; 111. a round bar; 120. an induction mechanism; 121. a slide block; 122. a spring; 131. a pole is arranged; 132. a lower rod; 141. a first loop bar; 142. a second loop bar; 143. a rotating rod; 144. a wheel ring disc; 1441. a wheel ring disc groove; 145. a wheel disc; 1451. a disc groove; 146. bevel pinion; 147. a second gear; 148. a rocker; 149. a bevel main gear; 150. a chassis; 151. a first link; 152. a collar; 153. a third link; 154. a support; 160. a support rod; 170. and (3) a hose.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of a comprehensive detection device for potential safety hazards of a tunnel according to the present invention, as shown in fig. 1 to 9, includes a chassis 150, a platform 110, a support bar 160, two adjusting mechanisms, a bevel main gear 149, two sensing mechanisms 120, and a driving mechanism. The chassis 150 is horizontally provided with two collars 152 through a vertical rod, and the platform 110 is arranged above the chassis 150 and is connected with the chassis 150 through a supporting rod 160. The support bar 160 is horizontally provided with two first connecting rods 151, and the first connecting rods 151 are arranged concentrically with the collar 152.
The angle between the projections of the two adjustment mechanisms onto the platform 110 is 90 °. Each of the adjustment mechanisms includes an upper rod 131, a lower rod 132, a first sleeve rod 141, a second sleeve rod 142, a rotating rod 143, and a gear assembly. The upper end of the upper rod 131 is rotatably connected to the lower surface of the platform 110, the upper end of the lower rod 132 is sleeved on the lower end of the upper rod 131, a hinge seat is arranged on the supporting rod 160, and the lower end of the lower rod 132 is rotatably connected to the hinge seat. The first loop bar 141 is disposed in the lower bar 132 and can rotate relative to the lower bar 132, the lower end of the upper bar 131 is disposed in the first loop bar 141 and is in threaded connection with the first loop bar 141, the upper end of the second loop bar 142 is connected with the lower end of the first loop bar 141, the support bar 160 is provided with a stop collar 180, and the second loop bar 142 is rotatably disposed in the stop collar 180. The upper end of the rotating rod 143 is slidably disposed at the lower end of the second sleeve rod 142, and the lower end of the rotating rod 143 is vertically provided with a first gear.
The gear assembly includes a ring gear 144, a disk 145, a bevel pinion 146, and a second gear 147. The annular disk 144 is rotatably disposed on the collar 152, and the annular disk 144 is provided with an annular disk groove 1441. The wheel 145 is rotatably disposed on the first link 151, a second link is disposed on the wheel 145, a wheel groove 1451 is disposed on a side of the wheel 145, and the first gear is engaged with the wheel ring 144 or the wheel 145. The bevel pinion 146 is sleeved on the second connecting rod, the supporting rod 160 is horizontally provided with a third connecting rod 153, the second gear 147 is sleeved on the third connecting rod 153, and the second gear 147 is meshed with the wheel disc 145 and the wheel ring disc 144.
The bevel primary gear 149 meshes with the bevel secondary gear 146. The sensing mechanism 120 is used for enabling the rotating rod 143 to move up and down, and the driving mechanism is used for driving the bevel main gear 149 to rotate.
In this embodiment, as shown in fig. 4, each sensing mechanism 120 includes a round bar 111, a slider 121, two springs 122, and a hose 170. The round bar 111 is horizontally arranged on the lower surface of the platform 110, and a cavity is arranged in the round bar 111. The sliding block 121 is slidably disposed on the round rod 111, the spring 122 is sleeved on the round rod 111, one end of the spring 122 is fixedly connected to the round rod 111, and the other end of the spring 122 is fixedly connected to the sliding block 121. The upper end of the hose 170 is connected to the end of the round bar 111 near the center of the platform 110 and communicates with the cavity, and the lower end of the hose 170 communicates with the second loop bar 142. When the slider 121 moves toward the center of the platform 110, the slider 121 compresses the air in the round bar 111, and then drives the rotating bar 143 to move downward through the hose 170, and the first gear on the rotating bar 143 is in frictional contact with the wheel disc 145. When the sliding blocks 121 are moved away from the center of the platform 110, the movement of the sliding blocks 121 drives the rotating rods 143 to move upwards through the flexible tubes 170, so that the first gears on the rotating rods 143 are in friction contact with the annular disks 144.
In this embodiment, as shown in fig. 7, a stand 154 is vertically provided on the chassis 150. The driving mechanism comprises a rocker 148, the rocker 148 is rotatably arranged on a support 154, and one end of the rocker 148 is fixedly connected with a conical main gear 149. The drive rocker 148 rotates the bevel master gear 149.
In this embodiment, as shown in fig. 8 and 9, the arc length of annular disc groove 1441 gradually increases outward along the center of annular disc 144, and the arc length of disc groove 1451 gradually increases outward along the center of disc 145. The wheel groove 1451 is provided 180 ° opposite the wheel groove 1441.
In this embodiment, as shown in fig. 5, the upper end of the second loop bar 142 is connected with the lower end of the first loop bar 141 in a universal manner. The first and second levers 141 and 142 may be rotated simultaneously about their own axes, and the first lever 141 may be rotated in any direction with respect to the second lever 142.
In this embodiment, as shown in fig. 4, a first chute is provided on the round rod 111, a slider 121 is slidably disposed in the first chute, one end of the slider 121 is inserted into the cavity, and a baffle is disposed at the other end of the slider 121, and the baffle seals the first chute. The slider 121 compresses the gas in the cavity as it moves horizontally over the rod 111, and the shutter seals the rod 111.
In this embodiment, as shown in fig. 5, a ring groove is provided on the peripheral wall of the second sleeve rod 142, a connecting ring is provided at the lower end of the hose 170, the connecting ring is sleeved on the ring groove, and the second sleeve rod 142 can rotate relative to the connecting ring.
In this embodiment, as shown in FIG. 3, the support bar 160 is ball-hinged to the platform 110. The platform 110 is free to rotate relative to the support bar 160.
In this embodiment, as shown in fig. 3, a second sliding groove is disposed on the inner peripheral wall of the lower rod 132, and a protrusion is disposed on the peripheral wall of the first sleeve rod 141 and disposed in the second sliding groove.
The working process comprises the following steps: in the initial state, the initial position of the slider 121 is in the middle of the round bar 111, and the first gear is not in contact with the wheel disc 145 and the wheel ring disc 144. The device is placed on the ground such that the platform 110 is not level due to the unevenness of the ground.
When both sliders 121 move toward the center of the platform 110, the two adjusting mechanisms are positioned at a higher position. The slider 121 compresses the gas in the round bar 111, and thus drives the rotating bar 143 to move downward through the hose 170, and the first gear on the rotating bar 143 is in frictional contact with the wheel disc 145. At this time, the rotating rocker 148 drives the bevel gear 149 to rotate, the bevel gear 149 further drives the two bevel pinion 146 to rotate, the bevel pinion 146 drives the wheel disc 145 to rotate through the second connecting rod, so that the first gear rotates, the first gear rotates to drive the rotating rod 143, the first sleeve rod 141 and the second sleeve rod 142 to rotate, and the first sleeve rod 141 is in threaded connection with the upper rod 131, so that the first sleeve rod 141 and the upper rod 131 shrink due to the rotation between the first sleeve rod 141 and the upper rod 131. The two adjustment mechanisms are pulled downward and the platform 110 returns to the horizontal.
When both sliders 121 are moved away from the center of the platform 110, the two adjustment mechanisms are now in a lower position. The movement of the slider 121 drives the rotating rod 143 upward through the hose 170, causing the first gear on the rotating rod 143 to make frictional contact with the annular disc 144. At this time, the rotating rocker 148 drives the bevel gear 149 to rotate, the bevel gear 149 further drives the two bevel pinion 146 to rotate, the bevel pinion 146 drives the wheel disc 145 to rotate through the second connecting rod, and then drives the second gear 147 to rotate, and the second gear 147 drives the wheel disc 144 to rotate, so that the rotation directions of the wheel disc 144 and the wheel disc 145 are opposite. The wheel ring 144 makes the first gear reversely rotate, and then drives the rotating rod 143, the first loop bar 141 and the second loop bar 142 reversely rotate, and the first loop bar 141 reversely rotates so that the first loop bar 141 and the upper bar 131 are pulled apart, thereby the positions of the two adjusting mechanisms are jacked up, and the platform 110 is restored to the horizontal state.
When one slider 121 moves toward the center of the platform 110 and the other slider 121 moves away from the center of the platform 110, the position of one adjustment mechanism is higher and the position of the other adjustment mechanism is lower. The slider 121 of the adjusting mechanism at the higher position compresses the air in the round bar 111, and thus drives the rotating bar 143 to move downward through the hose 170, and the first gear on the rotating bar 143 is in frictional contact with the wheel disc 145. At this time, the rotating rocker 148 drives the bevel gear 149 to rotate, the bevel gear 149 further drives the two bevel pinion 146 to rotate, the bevel pinion 146 drives the wheel disc 145 to rotate through the second connecting rod, so that the first gear rotates, the first gear rotates to drive the rotating rod 143, the first sleeve rod 141 and the second sleeve rod 142 to rotate, and the rotation between the first sleeve rod 141 and the upper rod 131 enables the first sleeve rod 141 and the upper rod 131 to shrink. Movement of the slider 121 of the adjustment mechanism in the lowered position brings the first gear on the rotary lever 143 into frictional contact with the annular disc 144. At this time, the rotating rocker 148 drives the bevel gear 149 to rotate, the bevel gear 149 further drives the two bevel pinion 146 to rotate, the bevel pinion 146 drives the wheel disc 145 to rotate through the second connecting rod, and then drives the second gear 147 to rotate, and the second gear 147 drives the wheel disc 144 to rotate, so that the rotation directions of the wheel disc 144 and the wheel disc 145 are opposite. The wheel ring 144 rotates the first gear reversely, and drives the rotating rod 143, the first sleeve rod 141 and the second sleeve rod 142 to rotate reversely, and the reverse rotation of the first sleeve rod 141 pulls the first sleeve rod 141 and the upper rod 131 apart.
When the slider 121 returns to the middle position of the round bar 111, the first gear is disengaged from the annular disk 144 or the wheel disk 145, and the device is automatically stopped.
Because the ground is uneven, the descending heights of the first gears of the two adjusting mechanisms are inconsistent, the first gears at the higher positions of the platform 110 descend more, the first gears are closer to the circle center of the wheel disc 145, when the rocker 148 rotates one circle, the number of turns of the first gears is less, due to the wheel disc groove 1451, the more the first gears which are closer to the circle center of the wheel disc 145 are in contact with the wheel disc 145, the more the rocker 148 rotates one circle, the more the turns of the first gears are, and the larger the distance between the first sleeve rod 141 and the upper rod 131 is driven to shrink. Thereby ensuring that the rocker 148 rotates for one circle, and the contraction amounts of the two groups of the first sleeve rods 141 and the upper rod 131 can be respectively adjusted, so that the two groups of the first sleeve rods and the upper rod 131 can be approximately adjusted at the same time.
Because of the uneven ground, the elevation of the first gear of the two adjustment mechanisms is also inconsistent, the more the first gear rises at the lower position of the platform 110, the closer the first gear is to the edge of the annular disk 144, and the more turns the first gear needs to turn. Because the circumference of the annular disk 144 is larger, when the rocker 148 rotates one turn, the number of turns of the first gear is larger than the number of turns of the first gear, and at this time, the area of the engagement of the first gear and the annular disk 144 is reduced through the annular disk groove 1441, so that the number of turns of the first gear is reduced, and the end of simultaneous adjustment can be approximately reached.
Through the 180 ° arrangement of the wheel disc groove 1451 and the wheel disc groove 1441, when one first gear is located in the wheel disc groove 1451 and the wheel disc groove 1441 with respect to the wheel disc 145 or the wheel disc 144, the other first gear achieves a labor-saving effect when the rocker 148 is rotated.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. The utility model provides a comprehensive detection device of tunnel potential safety hazard which characterized in that:
comprises a chassis, a platform, a supporting rod, two adjusting mechanisms, a conical main gear, two sensing mechanisms and a driving mechanism; the chassis is horizontally provided with two lantern rings, and the platform is arranged above the chassis and is connected with the chassis through a supporting rod; the support rod is horizontally provided with two first connecting rods, and the first connecting rods and the lantern ring are concentrically arranged;
the included angle of the projection of the two adjusting mechanisms on the platform is 90 degrees; each adjusting mechanism comprises an upper rod, a lower rod, a first sleeve rod, a second sleeve rod, a rotating rod and a gear assembly; the upper end of the upper rod is rotationally connected to the lower surface of the platform, the upper end of the lower rod is sleeved at the lower end of the upper rod, and the lower end of the lower rod is rotationally connected to the supporting rod; the first loop bar is arranged in the lower bar and can rotate relative to the lower bar, the lower end of the upper bar is arranged in the first loop bar and is in threaded connection with the first loop bar, and the upper end of the second loop bar is connected with the lower end of the first loop bar; the upper end of the rotating rod is arranged at the lower end of the second sleeve rod in a vertically sliding manner, and a first gear is vertically arranged at the lower end of the rotating rod; the gear assembly comprises a wheel ring disc, a wheel disc, a bevel pinion and a second gear; the annular disk is rotatably arranged on the lantern ring, and an annular disk groove is formed in the annular disk; the wheel disc is rotatably arranged on the first connecting rod, a second connecting rod is arranged on the wheel disc, a wheel disc groove is formed in the side face of the wheel disc, the first gear is meshed with the wheel ring disc or the wheel disc, the arc length of the wheel ring disc groove gradually increases outwards along the circle center of the wheel ring disc, and the arc length of the wheel disc groove gradually increases outwards along the circle center of the wheel disc; the wheel disc groove and the wheel ring disc groove are arranged 180 degrees opposite; the bevel pinion is sleeved on the second connecting rod, and the second gear is meshed with the wheel disc and the wheel ring disc;
the bevel main gear is meshed with the two bevel auxiliary gears; the sensing mechanisms are used for enabling the rotating rod to move up and down, and each sensing mechanism comprises a round rod, a sliding block, two springs and a hose; the round rod is horizontally arranged on the lower surface of the platform, and a cavity is arranged in the round rod; the sliding block is slidably arranged on the round rod, the spring is sleeved on the round rod, one end of the spring is fixedly connected with the round rod, and the other end of the spring is fixedly connected with the sliding block; the upper end of the hose is connected with one end of the round rod, which is close to the center of the platform, and is communicated with the cavity, and the lower end of the hose is communicated with the second sleeve rod; the driving mechanism is used for driving the bevel main gear to rotate.
2. The comprehensive tunnel safety hazard detection device according to claim 1, wherein: a support is vertically arranged on the chassis; the driving mechanism comprises a rocker which is rotatably arranged on the support, and one end of the rocker is fixedly connected with the bevel main gear.
3. The comprehensive tunnel safety hazard detection device according to claim 1, wherein: the upper end of the second loop bar is in universal connection with the lower end of the first loop bar.
4. The comprehensive tunnel safety hazard detection device according to claim 1, wherein: the round rod is provided with a first chute, the sliding block is slidably arranged in the first chute, one end of the sliding block is inserted into the cavity, the other end of the sliding block is provided with a baffle, and the baffle seals the first chute.
5. The comprehensive tunnel safety hazard detection device according to claim 1, wherein: the circumferential wall of the second sleeve rod is provided with an annular groove, the lower end of the hose is provided with a connecting ring, the connecting ring is sleeved on the annular groove, and the second sleeve rod can rotate relative to the connecting ring.
6. The comprehensive tunnel safety hazard detection device according to claim 1, wherein: the supporting rod is hinged with the platform in a ball mode.
7. The comprehensive tunnel safety hazard detection device according to claim 1, wherein: the lower rod inner peripheral wall is provided with a second chute, the first sleeve rod peripheral wall is provided with a bump, and the bump is arranged in the second chute.
8. A comprehensive detection method for potential safety hazards of tunnels is characterized by comprising the following steps:
the method comprises the following steps:
s1: placing the comprehensive tunnel safety hazard detection device according to any one of claims 1 to 7 on the ground, wherein the platform is not horizontal due to uneven ground;
s2: when the position of the adjusting mechanism is higher, the rotating rod moves downwards under the action of the sensing mechanism, and a first gear on the rotating rod is in friction contact with the wheel disc; under the action of the driving mechanism, the conical main gear rotates to drive the conical auxiliary gear to rotate, and the conical auxiliary gear drives the wheel disc to rotate through the second connecting rod, so that the first gear rotates and drives the rotary rod, the first sleeve rod and the second sleeve rod to rotate; the rotation between the first loop bar and the upper bar makes the first loop bar and the upper bar shrink, the position of the adjusting mechanism is pulled downwards, and the platform is restored to be horizontal;
s3: when the position of the adjusting mechanism is lower, the rotating rod moves upwards under the action of the sensing mechanism, and a first gear on the rotating rod is in friction contact with the annular disc; under the action of the driving mechanism, the conical main gear rotates to drive the conical auxiliary gear to rotate, the conical auxiliary gear drives the wheel disc to rotate through the second connecting rod to drive the second gear to rotate, and the second gear drives the wheel ring disc to rotate, so that the rotation direction of the wheel ring disc is opposite to that of the wheel disc; the wheel ring disc enables the first gear to reversely rotate, so that the rotary rod, the first loop bar and the second loop bar are driven to reversely rotate, the first loop bar and the upper bar are pulled apart by the reverse rotation of the first loop bar, the position of the adjusting mechanism is jacked up, and the platform is restored to be horizontal;
wherein, step S2 and step S3 are alternatively performed.
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