CN214882798U - Municipal administration highway operation measurement management system - Google Patents

Municipal administration highway operation measurement management system Download PDF

Info

Publication number
CN214882798U
CN214882798U CN202120490438.8U CN202120490438U CN214882798U CN 214882798 U CN214882798 U CN 214882798U CN 202120490438 U CN202120490438 U CN 202120490438U CN 214882798 U CN214882798 U CN 214882798U
Authority
CN
China
Prior art keywords
rod
bearing block
support
long hole
horizontal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202120490438.8U
Other languages
Chinese (zh)
Inventor
何苗
刘占庆
王龙
陶攀
宗钰坤
胡旭鑫
陈明欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pingdingshan Highway Transportation Institute Of Survey And Design
Original Assignee
Pingdingshan Highway Transportation Institute Of Survey And Design
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pingdingshan Highway Transportation Institute Of Survey And Design filed Critical Pingdingshan Highway Transportation Institute Of Survey And Design
Priority to CN202120490438.8U priority Critical patent/CN214882798U/en
Application granted granted Critical
Publication of CN214882798U publication Critical patent/CN214882798U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The utility model relates to a municipal administration highway management measurement management system relates to highway subgrade quality measurement technical field. The municipal administration road management measurement management system comprises a support base, and a lifting mechanism, a bearing device, a scale rod, a drop hammer assembly, a drop hammer adsorption assembly, a measurement assembly and a control display assembly which are arranged on the support base; elevating system is including installing the guide bar in the backup pad bottom, be equipped with the scale along the equidistant distribution of upper and lower direction on the scale bar, the fly leaf has been cup jointed on the scale bar, it includes bearing block and cushion to bear the device, pressure sensor is installed to the bottom central point department of putting of bearing block, the hammer subassembly that falls is including wearing to establish the hammer that falls on the guide bar, the regulating plate of connection on the hammer that falls, the hammer that falls is when rebound to setting for the position, regulating plate and fly leaf contact, measuring component includes the deflection sensor that is used for measuring ground deflection of a plurality of interval arrangements. The municipal administration road management measurement management system can accurately measure the road subgrade data and improve the deflection measurement precision.

Description

Municipal administration highway operation measurement management system
Technical Field
The utility model relates to a road bed quality measurement technical field of town road especially relates to a measurement and management system is managed to town road.
Background
The highway subgrade and pavement measurement is actually measurement of subgrade and pavement compaction quality and flatness, and only by fully compacting subgrade and pavement structure layers, the strength and rigidity of the subgrade and the pavement and the flatness of the pavement in later use can be ensured, the service life of subgrade and pavement engineering can be ensured and prolonged, and the highway subgrade and pavement measurement has an important effect in the management and management of municipal highways.
The method for measuring the highway subgrade on site has various methods, wherein the accurate method is to detect by using a drop weight deflectometer, but the existing drop weight deflectometer measuring method has no accurate assistance to the height adjustment of a drop weight, and can generate errors, so that the final calculation result has errors, the drop weight needs to fall stably, if the drop weight deviates, the measuring result has errors, and the measurement on the ground needs to combine various data together, so that the final measuring result is more accurate.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a municipal administration highway management measurement management system to when solving some present drop hammer benkelman deflectometers and measuring highway subgrade, the height control error of drop hammer is great, and it is comparatively single to measure the data type of dependence, makes the unsafe technical problem of measuring result of final highway subgrade.
In order to achieve the above object, the utility model adopts the following technical scheme:
municipal administration highway management measurement management system includes:
the U-shaped support frame comprises two support upright columns which are arranged in parallel at intervals and a support plate connected between the two support upright columns, a through hole penetrating through the support base is formed in the position, located between the two support upright columns, of the support base, travelling wheels and support legs are arranged at the bottom of the support base, and the support legs can lift up and down to realize contact and separation with the ground;
the lifting mechanism comprises a guide rod arranged at the bottom of the supporting plate and a motor arranged on the supporting plate, an output shaft of the motor is in transmission connection with a driving rod parallel to the guide rod, and the driving rod is a threaded rod;
the bearing device comprises a bearing block and a buffer cushion fixed on the upper side of the bearing block, both the bearing block and the buffer cushion can vertically pass through the through opening, the bearing block is in threaded connection with the driving rod and is in sliding fit with the guide rod, the buffer cushion is sleeved on the guide rod and the driving rod, and a pressure sensor is arranged at the center of the bottom of the bearing block;
the scale rod is arranged at the upper part of the supporting base and is parallel to the supporting upright post, scales distributed at equal intervals along the vertical direction are arranged on the scale rod, a movable plate parallel to the supporting base is sleeved on the scale rod, and the movable plate can move up and down along the scale rod;
the drop hammer assembly comprises a drop hammer which is arranged on the guide rod in a penetrating mode and is positioned above the cushion pad, and an adjusting plate which is connected to the drop hammer and is parallel to the supporting base, wherein when the drop hammer moves upwards to a set position, the adjusting plate is in contact with the movable plate;
the drop hammer adsorption assembly comprises electric push rods fixed at the bottom of the supporting plate, the electric push rods are arranged in pairs, the pushing end of each electric push rod is fixedly connected with an electromagnet, and the electromagnets can adsorb the drop hammers when being electrified and in contact with the drop hammers so as to prevent the drop hammers from freely falling along the guide rods;
the measuring assembly comprises a suspender which is assembled on the supporting base and can move along the up-down direction and the walking direction of the traveling wheels, the suspender is provided with a horizontal rod section which is parallel to the supporting base, a plurality of deflection sensors which are arranged at intervals and used for measuring the deflection of the ground are assembled on the horizontal rod section in a sliding mode, and the horizontal rod section is connected with the bearing block when the bearing block moves to a measuring position;
the control display assembly comprises a controller and a display screen which are arranged at the side of the supporting stand column and connected with each other, the controller is in control connection with the electric push rod and the motor, and the controller is in signal connection with the pressure sensor and each deflection sensor.
The beneficial effects of the above technical scheme are: the utility model discloses a municipal administration highway management measures management system is when measuring the highway subgrade, the height of the hammer that falls of record that can be accurate under the effect of scale rod and fly leaf, and the hammer that falls realizes rising and descends under the effect of getting electric or realizing of electro-magnet simultaneously, under the guide effect of guide bar, restricts the lift route of the hammer that falls, makes the hammer that falls can not take place the skew in the process of rising and descending to guarantee the accuracy of final measured data; in addition, because the pressure sensor is arranged at the center of the bearing block, when the impact force is generated on the bearing block by the drop hammer, the acting force between the bearing block and the ground can be detected by the pressure sensor, the data is used as auxiliary data and is combined with the data detected by the deflection sensors which are arranged in the measuring assembly and have different distances from the measuring point, and the measuring precision is improved under the analysis and comparison of the controller. The whole measuring process can realize automatic measurement through the controller, automatically records data, and displays the measured data on the display screen to form a set of measurement management system, thereby playing a good role in the management of municipal highways.
Furthermore, the positions, corresponding to the support legs, on the support base are respectively provided with a hydraulic push rod, the hydraulic push rods penetrate through the support base and are connected with the corresponding support legs to drive the support legs to move up and down, and the controller is in control connection with the hydraulic push rods to realize synchronous action of the hydraulic push rods.
Has the advantages that: the stabilizer blade can realize supporting the stable of base under hydraulic push rod's pushing action, when hydraulic push rod withdraws simultaneously, the effect of performance walking wheel makes whole device can remove the position on the different road surfaces of highway and measures the operation.
Further, be equipped with the recess of caving in up on the downside of supporting the base, the jib still includes and supports the vertical pole section of base vertically, still is equipped with horizontal slot hole and vertical slot hole that is perpendicular cross form and arranges on the support base, and the width of horizontal slot hole and vertical slot hole is the same to horizontal slot hole and vertical slot hole all run through one of them side cell wall of recess, vertical pole section removes the assembly on supporting the base through the locking bolt who wears to establish in the horizontal slot hole, and can enter into in the vertical slot hole when locking bolt moves to the cross position of horizontal slot hole and vertical slot hole along the horizontal slot hole in order to realize reciprocating of jib.
Has the advantages that: make things convenient for the survey crew to the adjustment of jib position and the fixed of adjustment back jib, also make things convenient for when not measuring, place the jib from top to bottom in order to protect the deflection sensor.
Furthermore, the bearing block is provided with a slot matched with the horizontal rod section, and the horizontal rod section is spliced and assembled with the bearing block when the bearing block moves to the measuring position.
Has the advantages that: the assembly and the disassembly between the horizontal rod section and the bearing block are convenient.
Furthermore, two ends of the horizontal rod section are provided with stop bulges, and each deflection sensor is arranged between the two stop bulges.
Has the advantages that: when the position of the deflection sensor is adjusted, the deflection sensor can be prevented from sliding off the horizontal rod section and being damaged under the action of the stop protrusion.
Drawings
FIG. 1 is a schematic view of the municipal highway operation measurement management system of the present invention when not measuring;
fig. 2 is a schematic diagram of the utility model of a municipal administration and highway management measurement management system in the measurement process.
Description of reference numerals: 1-support base, 2-through opening, 3-support plate, 4-support upright post, 5-motor, 6-drive rod, 7-guide rod, 8-buffer pad, 9-bearing block, 10-support leg, 11-walking wheel, 12-hydraulic push rod, 13-pressure sensor, 14-deflection sensor, 15-graduated rod, 16-graduation, 17-drop hammer, 18-movable plate, 19-adjusting plate, 20-electromagnet, 21-electric push rod, 22-horizontal rod segment, 23-vertical rod segment, 24-vertical long hole, 25-horizontal long hole, 26-controller, 27-display screen, 28-locking bolt and 29-stop projection.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses a municipal administration highway operation measurement management system's concrete embodiment:
as shown in fig. 1 and 2, the municipal administration and management system comprises a support base 1, and a lifting mechanism, a bearing device, a scale rod 15, a drop hammer assembly, a drop hammer adsorption assembly, a measurement assembly and a control display assembly which are arranged on the support base.
Specifically, install the support frame on supporting base 1, the support frame is "U" font, including two support posts 4 of parallel interval arrangement and the backup pad 3 of connecting between two support posts 4, supports base 1 and is equipped with the mouth 2 that passes through supporting base 1 from top to bottom in the position that lies in between two support posts 4. Walking wheel 11 and stabilizer blade 10 are installed to the bottom of supporting base 1, and walking wheel 11 can drive supporting base 1 and remove to different positions when removing, and the position that supports base 1 and correspond each stabilizer blade 10 all is equipped with hydraulic push rod 12, and hydraulic push rod 12 passes supporting base 1 and is connected with the stabilizer blade 10 that corresponds to drive stabilizer blade 10 reciprocates, and stabilizer blade 10 can realize when the oscilaltion with the contact on ground and break away from. The control display assembly comprises a controller 26 and a display screen 27 which are arranged at the side of the support upright post 4 and connected with each other, and the controller 26 is in control connection with each hydraulic push rod 12 to realize the synchronous action of each hydraulic push rod 12.
The lifting mechanism comprises a guide rod 7 arranged at the bottom of the supporting plate 3 and a motor 5 arranged on the supporting plate 3, the motor 5 is a forward and reverse rotating motor, and the controller 26 is in control connection with the motor 5 and can control the opening and closing of the motor 5 and the rotating speed of the motor 5. The motor 5 is provided with a speed reducer, an output shaft of the motor 5 is connected with a driving rod 6 parallel to the guide rod 7 in a transmission way, and the driving rod 6 is a threaded rod. The bearing device comprises a bearing block 9 and a cushion pad 8 fixed on the upper side of the bearing block 9, and the upper surface of the cushion pad 8 is provided with a rubber column-shaped protrusion. Bearing block 9 and cushion 8 homoenergetic are from top to bottom through supporting the mouth 2 that passes through on the base 1, bearing block 9 and drive lever 6 threaded connection and simultaneously with guide bar 7 sliding fit, cushion 8 suit is on guide bar 7 and drive lever 6, and pressure sensor 13 is installed to the bottom central point department of putting of bearing block 9, and pressure sensor 13 is used for measuring the pressure between bearing block 9 and the ground. When the motor 5 is started, the driving rod 6 rotates, and at the moment, the bearing block moves upwards or downwards along the guide rod, and the moving path cannot be deviated.
The graduated rod 15 is arranged on the upper part of the supporting base 1 near the passage opening 2 and is parallel to the supporting upright 4. The scale rod 15 is provided with scales 16 which are distributed at equal intervals along the up-down direction, the scale rod 15 is sleeved with a movable plate 18 which is parallel to the supporting base 1, and the movable plate 18 can move up and down along the scale rod 15. The drop hammer assembly comprises a drop hammer 17 which is arranged on the guide rod 7 in a penetrating mode and located above the cushion pad 8, and an adjusting plate 19 which is connected to the drop hammer 17 and is parallel to the supporting base 1, when the drop hammer 17 moves upwards to a set position, the adjusting plate 19 is in contact with the movable plate 18, the drop hammer 17 continues to move upwards, and the adjusting plate 19 presses the movable plate 18 to enable the movable plate 18 to move upwards along the scale rod 15. The drop hammer adsorption component comprises electric push rods 21 fixed at the bottom of the support plate 3, the electric push rods 21 are arranged in pairs, and the controller 26 is in control connection with each electric push rod 21. The pushing end of each electric push rod 21 is fixedly connected with an electromagnet 20, and the controller 26 can control the electromagnet 20 to be powered on or powered off. The electromagnet 20, when energized and in contact with the drop weight 17 under the urging action of the electric push rod 21, can attract the drop weight 17 to prevent the drop weight 17 from freely falling along the guide bar 7.
The measuring assembly comprises a boom mounted on the support base 1 and movable in an up-down direction and in a walking direction of the running wheels 11. The suspension rod is provided with a horizontal rod section 22 parallel to the supporting base 1 and a vertical rod section 23 perpendicular to the supporting base 1, wherein the two ends of the horizontal rod section 22 are provided with stop bulges 29, and a plurality of deflection sensors 14 which are arranged at intervals and used for measuring the deflection of the ground are slidably assembled on the part, between the two stop bulges 29, of the horizontal rod section 22. The controller 26 is in signal connection with the pressure sensors 13 and the respective deflection sensors 14. The bearing block 9 is provided with a slot matched with the horizontal rod section 22, and the horizontal rod section 22 is assembled with the bearing block in an inserting way when the bearing block 9 moves to a measuring position. Be equipped with the recess of upwards sunken on the downside of supporting base 1, still be equipped with horizontal slot hole 25 and vertical slot hole 24 that is the vertical cross form and arranges on the support base 1, horizontal slot hole 25 is the same with vertical slot hole 24's width, and horizontal slot hole 25 and vertical slot hole 24 all run through one of them side cell wall of recess, vertical pole section 23 removes the assembly on supporting base 1 through the locking bolt 28 of wearing to establish in horizontal slot hole 25, and locking bolt 28 can enter into vertical slot hole 24 in order to realize reciprocating of jib when moving to horizontal slot hole 25 and vertical slot hole 24's cross position along horizontal slot hole 25.
When the utility model is used for measuring the highway, the controller controls the motor to be turned on, so that the bearing plate falls to the measuring position along the guide rod, then the locking bolt is loosened, the suspender is moved, and the horizontal rod end of the suspender is spliced with the bearing block; then control electric putter through the controller, make the electro-magnet move down along the guide bar and contact with the drop hammer, simultaneously through controller for the electro-magnet circular telegram, make the electro-magnet tightly adsorb the drop hammer, avoid the drop hammer free fall, according to measuring the requirement, with the drop hammer through the electro-magnet remove to the height corresponding with the scale on the scale rod, then with each deflection sensor remove to with the measuring point settlement distance. During measurement, the electromagnet is powered off, the drop hammer moves downwards along the guide rod under the action of self gravity to impact the cushion pad, force is transmitted to the ground through the bearing block, pressure between the bearing block and the ground can be measured through the pressure sensor, the data is combined with data measured by each deflection sensor as auxiliary data, and current road base data are accurately measured through collection and analysis of the controller.
The utility model discloses a municipal administration highway management measures management system is when measuring the highway subgrade, the height of the record drop hammer that can be accurate under the effect of scale rod and fly leaf, and the drop hammer is realized rising and descending under the effect that the electro-magnet got to the electricity or realized simultaneously, under the guide effect of guide bar, restricts the lift route of drop hammer, makes the drop hammer rise and can not take place the skew with the decline in-process to guarantee final measured data's accuracy. Meanwhile, pressure data between the bearing plate and the ground are introduced to be combined with data measured by each deflection sensor, so that the accuracy of measuring the roadbed is further improved, and the method plays an important role in the management, measurement and management of the municipal highway.
In other embodiments, the supporting legs can also be driven by an electric push rod to lift up and down.
In other embodiments, a stopping protrusion may be provided only at one end of the horizontal rod section away from the bearing block, and the deflection sensor near the bearing block is stopped by the bearing block and does not slide out of the horizontal rod section.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (5)

1. Municipal administration road operation measurement management system, its characterized in that includes:
the U-shaped support frame comprises two support upright columns which are arranged in parallel at intervals and a support plate connected between the two support upright columns, a through hole penetrating through the support base is formed in the position, located between the two support upright columns, of the support base, travelling wheels and support legs are arranged at the bottom of the support base, and the support legs can lift up and down to realize contact and separation with the ground;
the lifting mechanism comprises a guide rod arranged at the bottom of the supporting plate and a motor arranged on the supporting plate, an output shaft of the motor is in transmission connection with a driving rod parallel to the guide rod, and the driving rod is a threaded rod;
the bearing device comprises a bearing block and a buffer cushion fixed on the upper side of the bearing block, both the bearing block and the buffer cushion can vertically pass through the through opening, the bearing block is in threaded connection with the driving rod and is in sliding fit with the guide rod, the buffer cushion is sleeved on the guide rod and the driving rod, and a pressure sensor is arranged at the center of the bottom of the bearing block;
the scale rod is arranged at the upper part of the supporting base and is parallel to the supporting upright post, scales distributed at equal intervals along the vertical direction are arranged on the scale rod, a movable plate parallel to the supporting base is sleeved on the scale rod, and the movable plate can move up and down along the scale rod;
the drop hammer assembly comprises a drop hammer which is arranged on the guide rod in a penetrating mode and is positioned above the cushion pad, and an adjusting plate which is connected to the drop hammer and is parallel to the supporting base, wherein when the drop hammer moves upwards to a set position, the adjusting plate is in contact with the movable plate;
the drop hammer adsorption assembly comprises electric push rods fixed at the bottom of the supporting plate, the electric push rods are arranged in pairs, the pushing end of each electric push rod is fixedly connected with an electromagnet, and the electromagnets can adsorb the drop hammers when being electrified and in contact with the drop hammers so as to prevent the drop hammers from freely falling along the guide rods;
the measuring assembly comprises a suspender which is assembled on the supporting base and can move along the up-down direction and the walking direction of the traveling wheels, the suspender is provided with a horizontal rod section which is parallel to the supporting base, a plurality of deflection sensors which are arranged at intervals and used for measuring the deflection of the ground are assembled on the horizontal rod section in a sliding mode, and the horizontal rod section is connected with the bearing block when the bearing block moves to a measuring position;
the control display assembly comprises a controller and a display screen which are arranged at the side of the supporting stand column and connected with each other, the controller is in control connection with the electric push rod and the motor, and the controller is in signal connection with the pressure sensor and each deflection sensor.
2. The system of claim 1, wherein the support base is provided with hydraulic push rods at positions corresponding to the support legs, the hydraulic push rods penetrate through the support base and are connected with the corresponding support legs to drive the support legs to move up and down, and the controller is in control connection with the hydraulic push rods to realize synchronous action of the hydraulic push rods.
3. The municipal highway operation measurement and management system according to claim 1, wherein the lower side surface of the support base is provided with an upwardly concave groove, the suspension rod further comprises a vertical rod section perpendicular to the support base, the support base is further provided with a horizontal long hole and a vertical long hole which are arranged in a vertical crossing manner, the horizontal long hole and the vertical long hole have the same width, the horizontal long hole and the vertical long hole penetrate through one side of the groove wall, the vertical rod section is movably assembled on the support base through a locking bolt arranged in the horizontal long hole in a penetrating manner, and the locking bolt can enter the vertical long hole to realize the up-and-down movement of the suspension rod when moving to the crossing position of the horizontal long hole and the vertical long hole along the horizontal long hole.
4. The municipal highway operation measurement management system according to any one of claims 1 to 3, wherein the bearing block is provided with a slot adapted to a horizontal bar section, and the horizontal bar section is assembled with the bearing block by insertion when the bearing block is moved to the measurement position.
5. The municipal highway operation measurement management system according to any one of claims 1 to 3, wherein stop protrusions are provided at both ends of the horizontal bar section, and each deflection sensor is provided between the two stop protrusions.
CN202120490438.8U 2021-03-08 2021-03-08 Municipal administration highway operation measurement management system Active CN214882798U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120490438.8U CN214882798U (en) 2021-03-08 2021-03-08 Municipal administration highway operation measurement management system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120490438.8U CN214882798U (en) 2021-03-08 2021-03-08 Municipal administration highway operation measurement management system

Publications (1)

Publication Number Publication Date
CN214882798U true CN214882798U (en) 2021-11-26

Family

ID=78856859

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120490438.8U Active CN214882798U (en) 2021-03-08 2021-03-08 Municipal administration highway operation measurement management system

Country Status (1)

Country Link
CN (1) CN214882798U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114351561A (en) * 2021-12-30 2022-04-15 冯满耀 Bionic magnetic control cavitation precipitation-prevention negative pressure type adsorption guide highway construction marking vehicle
CN116815595A (en) * 2023-08-30 2023-09-29 山东省路桥集团有限公司 Bridge deck pavement flatness detection device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114351561A (en) * 2021-12-30 2022-04-15 冯满耀 Bionic magnetic control cavitation precipitation-prevention negative pressure type adsorption guide highway construction marking vehicle
CN116815595A (en) * 2023-08-30 2023-09-29 山东省路桥集团有限公司 Bridge deck pavement flatness detection device
CN116815595B (en) * 2023-08-30 2023-11-03 山东省路桥集团有限公司 Bridge deck pavement flatness detection device

Similar Documents

Publication Publication Date Title
CN214882798U (en) Municipal administration highway operation measurement management system
CN101761004B (en) Rail detecting instrument for low and medium speed magnetic suspension F-type rail
CN110126876B (en) Ground penetrating radar auxiliary device for train track detection
CN106149720B (en) A kind of highway barrier hydraulic pile driver
CN114016361B (en) Road and bridge construction roughness measuring device
CN106768236B (en) Spring and rate of wheel load reduction test macro are adjusted in rail vehicle weighing
CN205711655U (en) A kind of asphalt-spreader paving thickness real-time detection apparatus
CN114046765A (en) Levelness measuring and adjusting device for highway bridge
CN201152841Y (en) Full-automatic monkey hammer type benkelman beams deflectometer
CN218823700U (en) Detection apparatus based on drop hammer impact
CN203118325U (en) Elevator traction machine installation and maintenance practical training apparatus
CN113218278B (en) Railway platform detection robot
CN201082946Y (en) Weight self-adjusting gage bar
CN216559618U (en) Drop hammer impact device for railway track indoor vibration test
CN202420465U (en) Linear motor height measurement reference track device
CN205711575U (en) A kind of half span type for CRTS III plate-type non-fragment orbit repairs structure
CN213895054U (en) Straddle type monorail train wheel changing device
CN210533291U (en) Wave form steel guardrail crossbeam center height detection device
CN210063003U (en) Ground penetrating radar auxiliary device for train track detection
CN209924564U (en) 35-220 KV line concrete pole quick pole arranging machine
CN220813343U (en) Road surface seam roughness detection device
CN112461624A (en) Road surface test compaction instrument convenient to adjust and dismantle
CN103185561B (en) Linear electric motors elevation carrection datum rail device and measurement method of adjustment thereof
CN217332021U (en) Road hardness detects machine with impact force adjusts structure
CN220818962U (en) Road surface subsidence on-line monitoring system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant