CN214384494U - Measuring device for highway construction - Google Patents

Abstract

The utility model discloses a measuring device for highway construction, which comprises two groups of brake rollers, two groups of support legs fixedly connected with the top of the brake rollers, two groups of bottom plates fixedly connected with the top of the support legs, a motor box fixedly connected with the bottom of the bottom plate, a threaded rod rotates, a measuring instrument is driven to move up and down through a limiting block and a placing plate, a second rotating rod drives a rotating disk and the measuring instrument to rotate through an adjusting handle, the height and the angle of the measurement can be adjusted, the threaded rod rotates to drive the placing plate, a pressure rod and a second pressure plate to move downwards, the measuring instrument descends to the interior of a damping box, meanwhile, a first buffer spring stretches, generates vibration during movement to enable the support plate and the measuring instrument to rock up and down, a movable rod rotates through the cooperation of a first connecting shaft and a second connecting shaft, and enables two groups of first connecting blocks to mutually approach or keep away from each other through the cooperation of a sliding chute and a sliding block, the telescopic rod and the second buffer spring are driven to stretch, so that the buffer and shock absorption are effectively carried out, and the service life of the device is prolonged.

Description

Measuring device for highway construction

Technical Field

The utility model belongs to the technical field of highway construction, specifically be a measuring device for highway construction.

Background

The road is a road for public transportation literally, and is an engineering facility for various vehicles and pedestrians to pass, a measuring device is required to be used for measuring the road in road construction, the structure of a general measuring device is relatively fixed, the measured angle and height cannot be adjusted according to needs, measurement is inconvenient, the working efficiency is reduced, and when the device is carried and moved, the device is easy to shake, the device is damaged, and the service life of the device is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a measuring device is used in highway construction to the problem that can not adjust measured angle and height as required of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a measuring device for highway construction comprises two groups of brake rollers, wherein the tops of the two groups of brake rollers are fixedly connected with two groups of supporting legs, the tops of the two groups of supporting legs are fixedly connected with a bottom plate, the middle of the bottom plate is fixedly connected with a motor box, the bottom of an inner cavity of the motor box is fixedly connected with a driving motor, the top of the driving motor is provided with a connecting rod, the top of the bottom plate is fixedly connected with a damping box, the left side and the right side of the damping box are provided with two groups of vertical through grooves, the left side and the right side of the top of the bottom plate are fixedly connected with two groups of fixing blocks, the tops of the two groups of fixing blocks are movably connected with two groups of vertical threaded rods, the tops of the two groups of threaded rods are fixedly connected with two groups of top plates, two groups of limiting blocks are sleeved on the tops of surfaces of the threaded rods, the two groups of limiting blocks are matched with the two groups of through grooves, one side, which is close to each other, is fixedly connected with a transverse placing plate, an adjusting handle is arranged in the middle of the surface of the placing plate, two groups of cushion blocks are fixedly connected to the left side and the right side of the bottom of the placing plate, two groups of pressure rods are fixedly connected to the bottoms of the two groups of cushion blocks, the top of the placing plate is provided with a rotating disk, the top of the rotating disk is provided with a measuring instrument, the middle of the inner cavity of the rotating disk is provided with a base, the top of base runs through the top of rotary disk and the bottom fixed connection of measuring apparatu, the left and right sides of base is equipped with two sets of first clamp plates, and is two sets of one side fixedly connected with two sets of horizontal pull rods that first clamp plate kept away from each other are two sets of the pull rod is not with two sets of one end that first clamp plate is connected runs through two sets of handles of the left and right sides fixedly connected with of rotary disk, and is two sets of one side fixedly connected with two sets of horizontal expanding spring that first clamp plate and rotary disk inner chamber are close to each other, and two sets of expanding spring cup joints two sets of the surface of pull rod.

Preferably, two groups of supporting blocks are fixedly connected to the left side and the right side of the inner cavity of the bottom plate, two groups of first transverse rotating rods are arranged on one side, close to each other, of the supporting blocks, two groups of first conical gears are fixedly connected to one ends, close to each other, of the first rotating rods, two groups of second conical gears matched with the first conical gears are arranged at the bottoms of one sides, close to each other, of the first conical gears, two groups of third conical gears are sleeved on one sides, far away from each other, of the surfaces of the first rotating rods, and two groups of fourth conical gears matched with the third conical gears are arranged at the tops of one sides, close to each other, of the third conical gears.

Preferably, one end of the connecting rod, which is not connected with the driving motor, penetrates through the middle of the top of the motor box and the bottom of the bottom plate and is fixedly connected with the bottom of the second bevel gear, and the bottom ends of the two groups of threaded rods penetrate through the left side and the right side of the top of the fixing block and the top of the bottom plate and are fixedly connected with the top of the two groups of fourth bevel gears.

Preferably, be equipped with horizontal backup pad in the middle of the inner chamber of surge tank, the left and right sides through connection of backup pad has two sets of adapter sleeves, and is two sets of the inner chamber top of adapter sleeve is equipped with two sets of second clamp plates, and is two sets of second clamp plate and two sets of one side fixedly connected with two sets of vertical first buffer spring that the adapter sleeve inner chamber is close to each other, and is two sets of the bottom of depression bar runs through two sets of the top of adapter sleeve extends to the inner chamber of adapter sleeve and two sets of the top fixed connection of second clamp plate.

Preferably, the bottom of the inner cavity of the damping box is fixedly connected with a transverse fixing plate, the bottoms of two groups of connecting sleeves are fixedly connected with the left side and the right side of the top of the fixing plate, the top of the fixing plate is provided with a transverse sliding chute, the left side and the right side of the top of the sliding chute are provided with two groups of sliding blocks, the tops of the two groups of sliding blocks are fixedly connected with two groups of first connecting blocks, the two groups of sliding blocks and the first connecting blocks are positioned between the two groups of connecting sleeves, the surface of the two groups of first connecting blocks is in through connection with two groups of first connecting shafts, one side of the two groups of first connecting blocks, which are close to each other, is fixedly connected with a transverse second buffer spring, the second buffer spring is sleeved on the surface of the telescopic rod, the middle of the bottom of the supporting plate is fixedly connected with a second connecting block, and the left side and the right side of the surface of the second connecting block are in through connection with two groups of second connecting shafts, two groups of movable rods are movably connected between the first connecting shaft and the second connecting shaft.

Preferably, be equipped with vertical second dwang in the middle of the inner chamber of placing the board, and the top of second dwang runs through the top of placing the board in the middle of with the middle fixed connection in the bottom of rotary disk, the surperficial top of second dwang has cup jointed fifth conical gear, fifth conical gear's surperficial bottom be equipped with fifth conical gear assorted sixth conical gear, fixedly connected with center pin in the middle of the surface of sixth conical gear, and the center pin does not run through the one end of placing the board with sixth conical gear and adjust handle fixed connection in the middle of the surface.

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

1. the driving motor drives the connecting rod and the second bevel gear to rotate, the second bevel gear is meshed with the first bevel gear, so that the two groups of first bevel gears drive the first rotating rod and the third bevel gear to rotate, the third bevel gear is meshed with the fourth bevel gear, so that the fourth bevel gear drives the threaded rod to rotate, the limiting block and the placing plate drive the measuring instrument to move up and down, the adjusting handle and the central shaft are matched to drive the sixth bevel gear to rotate, and the sixth bevel gear is meshed with the fifth bevel gear, so that the fifth bevel gear drives the second rotating rod, the rotating disk and the measuring instrument to rotate;

2. the threaded rod rotates to drive and places board downstream, depression bar and second clamp plate down push at the adapter sleeve inner chamber, make the measuring apparatu descend to the surge tank inside, it is flexible to drive first buffer spring simultaneously, it can make the backup pad drive the measuring apparatu and rock from top to bottom to remove in-process production vibrations, it rotates through first connecting axle and the cooperation of second connecting axle to drive the movable rod simultaneously, make two sets of first connecting blocks be close to or keep away from each other through spout and slider cooperation, it is flexible to drive telescopic link and second buffer spring, can cushion the shock attenuation effectively, the service life of device is prolonged.

Drawings

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

FIG. 2 is a schematic view of the bottom plate structure of the present invention;

FIG. 3 is a schematic view of the structure of the damping box of the present invention;

fig. 4 is a schematic diagram of the structure of the placing board of the present invention.

In the figure: 1 brake roller, 2 support legs, 3 bottom plates, 31 supporting blocks, 32 first rotating rods, 33 first bevel gears, 34 second bevel gears, 35 third bevel gears, 36 fourth bevel gears, 4 motor boxes, 5 driving motors, 6 connecting rods, 7 shock absorption boxes, 71 supporting plates, 72 connecting sleeves, 73 second pressing plates, 74 first buffer springs, 75 fixing plates, 76 chutes, 77 sliding blocks, 78 first connecting blocks, 79 first connecting shafts, 791 telescopic rods, 792 second buffer springs, 793 second connecting blocks, 794 second connecting shafts, 795 movable rods, 8 through grooves, 9 fixing blocks, 10 threaded rods, 11 top plates, 12 limiting blocks, 13 placing plates, 131 second rotating rods, 132 fifth bevel gears, 133 sixth bevel gears, 134 central shafts, 14 adjusting handles, 15 cushion blocks, 16 pressure rods, 17 rotating disks, 18 rotating rods, 19 bases, 20 first pressing plates, 17 rotating disks, 18 rotating measuring instrument bases, 19 bases, 9 rotating rods, 3 first pressing plates, 9 second buffer springs, four rotating rods, four rotating shafts, four rotating rods, four rotating shafts, 21 draw bar, 22 handle, 23 extension spring.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a measuring device for highway construction comprises two groups of brake rollers 1, wherein the top parts of the two groups of brake rollers 1 are fixedly connected with two groups of supporting legs 2, the top parts of the two groups of supporting legs 2 are fixedly connected with a bottom plate 3, the middle part of the bottom plate 3 is fixedly connected with a motor box 4, the bottom part of an inner cavity of the motor box 4 is fixedly connected with a driving motor 5, the top part of the driving motor 5 is provided with a connecting rod 6, the top part of the bottom plate 3 is fixedly connected with a damping box 7, the left side and the right side of the damping box 7 are provided with two groups of vertical through grooves 8, the left side and the right side of the top part of the bottom plate 3 are fixedly connected with two groups of fixed blocks 9, the top parts of the two groups of fixed blocks 9 are movably connected with two groups of vertical threaded rods 10, the top parts of the two groups of threaded rods 10 are fixedly connected with two groups of top plates 11, and the surface top parts of the two groups of threaded rods 10 are sleeved with two groups of limiting blocks 12, and two sets of stopper 12 and two sets of lead to groove 8 phase-match, two sets of stopper 12 is close to each other one side fixedly connected with horizontal board 13 of placing, it is equipped with in the middle of the surface of board 13 to place and adjusts handle 14, place two sets of cushions 15 of the bottom left and right sides fixedly connected with of board 13, two sets of bottom fixedly connected with two sets of depression bars 16 of cushion 15, the top of placing board 13 is equipped with rotary disk 17, rotary disk 17's top is equipped with measuring apparatu 18, be equipped with base 19 in the middle of rotary disk 17's the inner chamber, the top of base 19 is run through the top of rotary disk 17 and the bottom fixed connection of measuring apparatu 18, the left and right sides of base 19 is equipped with two sets of first clamp plates 20, and two sets of one side fixedly connected with two sets of horizontal pull rods 21 that first clamp plate 20 kept away from each other, two sets of pull rods 21 do not with two sets of one end that first clamp plate 20 is connected runs through two sets of handles of left and right sides fixedly connected with of rotary disk 17 22, two groups of transverse expansion springs 23 are fixedly connected to the side, close to each other, of the inner cavity of the rotating disc 17, of the first pressing plate 20, and the two groups of expansion springs 23 are sleeved on the surfaces of the two groups of pull rods 21.

Referring to fig. 2, two groups of supporting blocks 31 are fixedly connected to the left and right sides of the inner cavity of the bottom plate 3, two groups of transverse first rotating rods 32 are arranged on the sides of the two groups of supporting blocks 31 close to each other, two groups of first bevel gears 33 are fixedly connected to the ends of the two groups of first rotating rods 32 close to each other, two groups of second bevel gears 34 matched with the first bevel gears 33 are arranged at the bottoms of the two groups of first bevel gears 33 close to each other, two groups of third bevel gears 35 are sleeved on the sides of the two groups of first rotating rods 32 far from each other, two groups of fourth bevel gears 36 matched with the third bevel gears 35 are arranged at the tops of the two groups of third bevel gears 35 close to each other, one end of the connecting rod 6 not connected with the driving motor 5 penetrates through the middle between the top of the motor box 4 and the bottom of the bottom plate 3 and is fixedly connected with the bottoms of the second bevel gears 34, the bottom ends of the two groups of threaded rods 10 penetrate through the left and right sides of the tops of the two groups of fixed blocks 9 and the bottom plate 3 and are fixedly connected with the tops of the two groups of fourth bevel gears 36, the driving motor 5 drives the connecting rod 6 and the second bevel gear 34 to rotate, the two groups of first bevel gears 33 drive the first rotating rod 32 and the third bevel gear 35 to rotate due to the meshing connection between the second bevel gear 34 and the first bevel gear 33, and the fourth bevel gear 36 drives the threaded rods 10 to rotate due to the meshing connection between the third bevel gear 35 and the fourth bevel gear 36;

referring to fig. 3, a transverse support plate 71 is arranged in the middle of an inner cavity of the damper box 7, two groups of connecting sleeves 72 are connected to the left and right sides of the support plate 71 in a penetrating manner, two groups of second press plates 73 are arranged at the tops of the inner cavities of the two groups of connecting sleeves 72, two groups of vertical first buffer springs 74 are fixedly connected to the sides, close to the inner cavities of the two groups of connecting sleeves 72, of the two groups of second press plates 73, the bottom ends of two groups of press rods 16 penetrate through the tops of the two groups of connecting sleeves 72 and extend to the inner cavities of the connecting sleeves 72 to be fixedly connected with the tops of the two groups of second press plates 73, the threaded rod 10 drives the placing plate 13 to move downwards, and drives the press rods 16 and the second press plates 73 to press downwards in the inner cavities of the connecting sleeves 72, so that the measuring instrument 18 descends into the damper box 7, and drives the first buffer springs 74 to expand and damp;

referring to fig. 3, a transverse fixing plate 75 is fixedly connected to the bottom of the inner cavity of the damper box 7, the bottoms of two sets of connecting sleeves 72 are fixedly connected to the left and right sides of the top of the fixing plate 75, a transverse sliding groove 76 is formed in the top of the fixing plate 75, two sets of sliding blocks 77 are arranged on the left and right sides of the top of the sliding groove 76, two sets of first connecting blocks 78 are fixedly connected to the tops of the two sets of sliding blocks 77, the two sets of sliding blocks 77 and the first connecting blocks 78 are located between the two sets of connecting sleeves 72, two sets of first connecting blocks 78 are connected to two sets of first connecting shafts 79 in a penetrating manner on the surfaces of the two sets of first connecting blocks 78, a transverse telescopic rod 791 is fixedly connected to the side of the two sets of first connecting blocks 78 close to each other, a transverse second buffer spring 792 is fixedly connected to the side of the two sets of first connecting blocks 78 close to each other, the second buffer spring 793 is sleeved on the surface of the telescopic rod 791, a second connecting block 793 is fixedly connected to the middle of the bottom of the supporting plate 71, two groups of second connecting shafts 794 are connected to the left and right sides of the surface of the second connecting block 793 in a penetrating manner, two groups of movable rods 795 are movably connected between the two groups of first connecting shafts 79 and the second connecting shafts 794, vibration generated in the moving process can enable the supporting plate 71 to drive the measuring instrument 18 to swing up and down, and meanwhile, the movable rods 795 are driven to rotate through the cooperation of the first connecting shafts 79 and the second connecting shafts 794, so that the two groups of first connecting blocks 78 are close to or far away from each other through the cooperation of the sliding grooves 76 and the sliding blocks 77, and the telescopic rods 791 and the second buffer springs 792 are driven to stretch and retract to buffer and absorb shock;

referring to fig. 4, a vertical second rotating rod 131 is disposed in the middle of the inner cavity of the placing plate 13, and the top of the second rotating rod 131 penetrates through the middle of the top of the placing plate 13 and is fixedly connected with the middle of the bottom of the rotating disc 17, a fifth bevel gear 132 is sleeved on the top of the surface of the second rotating rod 131, a sixth bevel gear 133 matched with the fifth bevel gear 132 is arranged at the bottom of the surface of the fifth bevel gear 132, a central shaft 134 is fixedly connected in the middle of the surface of the sixth bevel gear 133, and the end of the central shaft 134 which is not connected with the sixth bevel gear 133 penetrates the middle of the surface of the placing plate 13 to be fixedly connected with the adjusting handle 14, the sixth bevel gear 133 is rotated by the cooperation of the adjusting handle 14 and the central shaft 134, due to the meshed connection between the sixth bevel gear 133 and the fifth bevel gear 132, the fifth bevel gear 132 drives the second rotating rod 131 and the rotating disk 17 to rotate.

The working principle is as follows: when the measuring instrument is used, the driving motor 5 drives the connecting rod 6 and the second bevel gear 34 to rotate, the two groups of first bevel gears 33 drive the first rotating rod 32 and the third bevel gear 35 to rotate due to the meshing connection between the second bevel gear 34 and the first bevel gear 33, the fourth bevel gear 36 drives the threaded rod 10 to rotate due to the meshing connection between the third bevel gear 35 and the fourth bevel gear 36, the measuring instrument 18 is driven to move up and down through the limiting block 12 and the placing plate 13 to adjust the height, the sixth bevel gear 133 is driven to rotate through the matching of the adjusting handle 14 and the central shaft 134, the fifth bevel gear 133 and the fifth bevel gear 132 are meshed to drive the second rotating rod 131, the rotating disk 17 and the measuring instrument to rotate due to the meshing connection between the sixth bevel gear 133 and the fifth bevel gear 132, the measuring angle can be adjusted as required, when the measuring instrument is not used, the threaded rod 10 reversely rotates to drive the placing plate 13 to move downwards, depression bar 16 and second clamp plate 73 are down pushed down at adapter sleeve 72 inner chamber, make measuring apparatu 18 descend to inside the surge tank 7, drive first buffer spring 74 simultaneously and stretch out and draw back and cushion the shock attenuation, make the device remove through brake roller 1, it can make backup pad 71 drive measuring apparatu 18 rock from top to bottom to remove in-process vibrations, it rotates through the cooperation of first connecting axle 79 and second connecting axle 794 to drive movable rod 795 simultaneously, make two sets of first connecting blocks 78 close to each other or keep away from through spout 76 and slider 77 cooperation, it cushions the shock attenuation to drive telescopic link 791 and the flexible buffering of second buffer spring 792.

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 (6)

1. The utility model provides a measuring device is used in highway construction, includes two sets of brake rollers (1), its characterized in that: the top of the two groups of brake rollers (1) is fixedly connected with two groups of supporting legs (2), the top of the two groups of supporting legs (2) is fixedly connected with a bottom plate (3), the middle of the bottom plate (3) is fixedly connected with a motor box (4), the bottom of an inner cavity of the motor box (4) is fixedly connected with a driving motor (5), the top of the driving motor (5) is provided with a connecting rod (6), the top of the bottom plate (3) is fixedly connected with a damping box (7), the left side and the right side of the damping box (7) are provided with two groups of vertical through grooves (8), the left side and the right side of the top of the bottom plate (3) are fixedly connected with two groups of fixed blocks (9), the top of the two groups of fixed blocks (9) is movably connected with two groups of vertical threaded rods (10), the top of the two groups of threaded rods (10) is fixedly connected with two groups of top plates (11), and the surface top of the two groups of threaded rods (10) is sleeved with two groups of limit blocks (12), and two sets of stopper (12) and two sets of lead to groove (8) phase-match, two sets of stopper (12) are close to one side fixedly connected with horizontal place board (13) each other, place the surface centre of board (13) and be equipped with regulation handle (14), place the bottom left and right sides fixedly connected with two sets of cushions (15) of board (13), two sets of the bottom fixedly connected with two sets of depression bars (16) of cushion (15), the top of placing board (13) is equipped with rotary disk (17), the top of rotary disk (17) is equipped with measuring apparatu (18), be equipped with base (19) in the middle of the inner chamber of rotary disk (17), the top of base (19) runs through the top of rotary disk (17) and the bottom fixed connection of measuring apparatu (18), the left and right sides of base (19) is equipped with two sets of first clamp plates (20), two sets of one side fixedly connected with two sets of horizontal pull rods (21) that first clamp plate (20) kept away from each other, two sets of pull rod (21) do not with two sets of the left and right sides fixedly connected with two sets of handle (22) of rotary disk (17) are run through to the one end that first clamp plate (20) are connected, and are two sets of one side fixedly connected with two sets of horizontal expanding spring (23) that first clamp plate (20) and rotary disk (17) inner chamber are close to each other, and are two sets of expanding spring (23) cup joint is two sets of the surface of pull rod (21).

2. The measuring device for road construction according to claim 1, wherein: the utility model discloses a bottom plate, including bottom plate (3), the inner chamber left and right sides fixedly connected with two sets of supporting shoe (31), it is two sets of supporting shoe (31) are close to each other one side be equipped with two sets of horizontal first bull stick (32), two sets of one end fixedly connected with two sets of first bevel gear (33) that first bull stick (32) are close to each other, and two sets of one side bottom that first bevel gear (33) are close to each other is equipped with second bevel gear (34) with first bevel gear (33) assorted, and two sets of one side that the surface of first bull stick (32) is kept away from each other has cup jointed two sets of third bevel gear (35), and is two sets of one side top that third bevel gear (35) are close to each other is equipped with two sets of fourth bevel gear (36) with third bevel gear (35) assorted.

3. The measuring device for road construction according to claim 2, wherein: the one end that connecting rod (6) are not connected with driving motor (5) runs through the top of motor case (4) and the bottom of bottom plate (3) in the middle of with the bottom fixed connection of second conical gear (34), and is two sets of the bottom of threaded rod (10) runs through two sets of the top left and right sides and two sets of fixed block (9) and bottom plate (3) the top fixed connection of fourth conical gear (36).

4. The measuring device for road construction according to claim 1, wherein: be equipped with horizontal backup pad (71) in the middle of the inner chamber of surge tank (7), the left and right sides through connection of backup pad (71) has two sets of adapter sleeve (72), and is two sets of the inner chamber top of adapter sleeve (72) is equipped with two sets of second clamp plate (73), and is two sets of second clamp plate (73) and two sets of one side fixedly connected with two sets of vertical first buffer spring (74), two sets of that the inner chamber of adapter sleeve (72) is close to each other the bottom of depression bar (16) runs through two sets of the inner chamber and two sets of that the top of adapter sleeve (72) extends to adapter sleeve (72) the top fixed connection of second clamp plate (73).

5. The measuring device for road construction according to claim 4, wherein: the inner cavity bottom of the shock absorption box (7) is fixedly connected with a transverse fixing plate (75), the bottoms of the two groups of connecting sleeves (72) are fixedly connected with the left side and the right side of the top of the fixing plate (75), the top of the fixing plate (75) is provided with a transverse sliding groove (76), the left side and the right side of the top of the sliding groove (76) are provided with two groups of sliding blocks (77), the top of the two groups of sliding blocks (77) is fixedly connected with two groups of first connecting blocks (78), the two groups of sliding blocks (77) and the first connecting blocks (78) are positioned between the two groups of connecting sleeves (72), the surface of the two groups of first connecting blocks (78) is in through connection with two groups of first connecting shafts (79), one side of the two groups of first connecting blocks (78) which are close to each other is fixedly connected with a transverse telescopic rod (791), and one side of the two groups of first connecting blocks (78) which are close to each other is fixedly connected with a transverse second buffer spring (792), and second buffer spring (792) cup joints the surface at telescopic link (791), fixedly connected with second connecting block (793) in the middle of the bottom of backup pad (71), the surperficial left and right sides through connection of second connecting block (793) has two sets of second connecting axles (794), and is two sets of swing joint has two sets of movable rods (795) between first connecting axle (79) and second connecting axle (794).

6. The measuring device for road construction according to claim 1, wherein: place the inner chamber of board (13) in the middle of be equipped with vertical second dwang (131), and the top of second dwang (131) is run through the top of placing board (13) in the middle of with the middle fixed connection in bottom of rotary disk (17), the surface top of second dwang (131) has cup jointed fifth conical gear (132), the surface bottom of fifth conical gear (132) is equipped with sixth conical gear (133) with fifth conical gear (132) assorted, fixedly connected with center pin (134) in the middle of the surface of sixth conical gear (133), and center pin (134) do not run through the surface of placing board (13) in the middle of with the one end that sixth conical gear (133) is connected with adjust handle (14) fixed connection.

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