CN210797212U - Pavement deflection detection device - Google Patents
Pavement deflection detection device Download PDFInfo
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- CN210797212U CN210797212U CN201921379272.1U CN201921379272U CN210797212U CN 210797212 U CN210797212 U CN 210797212U CN 201921379272 U CN201921379272 U CN 201921379272U CN 210797212 U CN210797212 U CN 210797212U
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Abstract
The utility model relates to a pavement deflection detection device, which comprises a measuring lever, a dial indicator bracket and a dial indicator, the measuring lever comprises a first lever and a second lever which are connected, the first lever is provided with a measuring head at the non-connecting end of the first lever and the second lever, the side head of the dial indicator props against the upper surface of the second lever at the non-connecting end of the second lever and the first lever, the second lever is provided with a support which is rotatably connected with the first lever, the support is positioned between the connecting end of the second lever and the first lever and the dial indicator bracket, it is characterized in that the first lever is rotationally connected with the second lever, a fixed block is arranged at the connecting end of the first lever and the second lever, the second lever is provided with a holding groove for holding the fixing block at the connecting end of the second lever and the first lever, and the fixing block and the second lever are detachably connected through the fixing component. The measuring lever has the advantages of being convenient to retract and release and saving assembling time.
Description
Technical Field
The utility model relates to a road surface detects technical field, in particular to road surface deflection detection device.
Background
The road surface deflectometer is made by lever principle and is used for measuring the road surface deflectometer, the road surface forms local deflectometer, namely vertical deformation, under the action of load, the shape reflected by the road surface takes a basin shape with a load point as a center, the basin is called as a deflectometer, when the load is removed, the road surface is recovered to the original shape by elasticity, the deflectometer disappears, and the difference value before and after the load is called as the deflectometer. Generally, the larger the deflection value is, the larger the plastic deformation of the road surface structure is (the rigidity is poor), and meanwhile, the fatigue resistance is also poor, so that the heavy traffic is difficult to bear; on the contrary, the road surface structure has good fatigue resistance and can bear heavy traffic. The rod length specifications of the existing automatic deflectometers are usually 3.6m, 5.4m and 7.2 m.
Current grant bulletin day is 2017.07.14, grant bulletin number is CN 206328664U's patent document discloses a road surface deflectometer, including left side crossbeam, right side crossbeam, support, pivot and percentage table, left side crossbeam pass through bolted connection with the right side crossbeam, left side crossbeam bottom connect the support through the pivot, the one end of left side crossbeam set up the percentage table, right side crossbeam tip be provided with the connection horizontal pole, the percentage table activity set up on the fixed bolster, the percentage table be wireless data transmission percentage table, be external having data receiving module, data receiving module be connected with the controller, the controller on be provided with bluetooth module, the controller pass through bluetooth module and be connected with mobile client.
However, the left cross beam and the right cross beam of the road surface deflection detection device are detachably connected. When this road surface deflection detection device carries out road surface deflection and detects, need connect into a lever with left side crossbeam and right side crossbeam, can derive its connected mode by description attached figure 1 and do: the left side cross beam and the right side cross beam are horizontally placed and are in the same horizontal line in the horizontal direction, four through holes are formed in the joint of the left side cross beam and the right side cross beam, four through holes are formed in the joint of the right side cross beam and the left side cross beam, the through holes of the left side cross beam and the through holes of the right side cross beam correspond to each other one by one, and the through holes of the left side cross beam and the right side cross beam are fixedly connected through bolts. Therefore, before detecting the deflection value on the road surface, the through holes of the left side beam and the right side beam need to be butted, the mounting bolts are connected, after the deflection value on the road surface is detected, the bolts need to be disassembled, and the left side beam and the right side beam are disassembled.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a road surface deflection detection device, it has the equipment convenience, the equipment time is short, detect advantage that work efficiency is high.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a pavement deflection detection device comprises a measurement lever, a dial indicator bracket and a dial indicator arranged on the dial indicator bracket, wherein the measurement lever comprises a first lever and a second lever which are connected, the first lever is provided with a measurement head at the non-connection end of the first lever and the second lever, the side head of the dial indicator props against the upper surface of the second lever at the non-connection end of the second lever and the first lever, the second lever is provided with a support which is rotatably connected with the second lever, the support is positioned between the connection end of the second lever and the first lever and the dial indicator bracket, the pavement deflection detection device is characterized in that the first lever and the second lever are rotatably connected through a rotating piece, the connection end of the first lever and the second lever is provided with a fixed block, and the connection end of the second lever and the first lever is provided with an accommodating groove for accommodating the fixed block, the fixed block and the second lever are detachably connected through the fixed assembly.
Through adopting above-mentioned technical scheme, when carrying out the deflection index survey to the road surface, put road surface deflection detection device's support montant and percentage table support subaerial, rotate first lever, make the fixed block of first lever be located the holding tank of second lever to it is fixed with first lever and second lever through fixed subassembly, thereby accomplish the equipment to road surface deflection detection device. Therefore, the utility model discloses need not to install the device through other independent subassemblies, have the equipment convenient, the equipment time is short, detect advantage that work efficiency is high.
The utility model discloses further set up to: the fixing assembly comprises an outer pipe fixedly arranged on the second lever and a fixing rod penetrating through the outer pipe, the inner peripheral wall of the outer pipe is provided with a limiting inner convex ring, the outer peripheral wall of the fixing rod is provided with a limiting outer convex ring, the limiting outer convex ring is positioned between the end, connected with the second lever, of the outer pipe and the limiting inner convex ring, and the limiting inner convex ring and the limiting outer convex ring are provided with compression elastic pieces; the second lever is provided with a through hole for the fixing rod to penetrate through, the fixing block is provided with a fixing hole, and the fixing rod is connected with the fixing hole in an inserting mode.
Through adopting above-mentioned technical scheme, the second lever is kept away from to the pulling dead lever, makes the cooperation of spacing interior bulge loop and spacing outer bulge loop prevent breaking away from of dead lever, rotates first lever, makes the fixed block be located the holding tank of second lever, loosens the dead lever after, under the drive of compression elastic component, makes the dead lever pass the via hole and be fixed in the fixed orifices, thereby realizes the fixed to first lever and second lever junction through fixed subassembly.
The utility model discloses further set up to: the length direction of the fixing rod is parallel to the direction of the rotating axis between the first lever and the second lever.
Through adopting above-mentioned technical scheme, make fixed subassembly be located holding tank open-ended both sides.
The utility model discloses further set up to: and the second lever is provided with a fixing groove for the insertion of the fixing rod at the groove wall of the accommodating groove.
Through adopting above-mentioned technical scheme, realize fixing the dead lever lower extreme through the fixed slot.
The utility model discloses further set up to: the fixed components are in a plurality of groups, and the fixed rods of the fixed components are connected through a connecting rod at one end of the fixed rods far away from the second lever.
By adopting the technical scheme, the multi-group fixing rods can be lifted at one time.
The utility model discloses further set up to: the rotating member includes a hinge.
Through adopting above-mentioned technical scheme, realize being connected the rotation of first lever and second lever through the hinge.
The utility model discloses further set up to: the second lever is provided with a level gauge.
Through adopting above-mentioned technical scheme, observe the horizontality of measuring the lever through the spirit level.
The utility model discloses further set up to: the lower extreme of support is provided with the leveling subassembly that is used for adjusting measuring lever horizontality, the leveling subassembly includes leveling dull and stereotyped and four leveling bolts, the lower extreme of support welds in the dull and stereotyped upper surface of leveling, four leveling screw holes have been seted up to the leveling dull and stereotyped, four leveling screw hole is the circumference array along the tie point of support and leveling dull and stereotyped, four leveling bolt respectively with four leveling screw hole threaded connection.
By adopting the technical scheme, the four leveling assemblies are arranged in a circumferential array along the connecting points of the support and the leveling flat plate, and the heights of the support in different directions are adjusted by matching the adjusting bolts with the leveling threaded holes, so that the leveling state of the measuring lever is adjusted.
The utility model discloses further set up to: the dial indicator support comprises a supporting vertical rod, a first deformed split ring sleeved on the supporting vertical rod, a second deformed split ring sleeved on the measuring rod of the dial indicator and a connecting cross rod arranged between the first deformed split ring and the second deformed split ring; the two open ends of the first deformed open ring are respectively provided with a first fastening block, and a first fastening piece for enabling the two first fastening blocks to be close to each other is arranged between the two first fastening blocks; the two open ends of the second deformed open ring are respectively provided with a second fastening block, and a second fastening piece which enables the two second fastening blocks to be close to each other is arranged between the two second fastening blocks.
Through adopting above-mentioned technical scheme, realize supporting the fixed of montant through mutually supporting between first deformation split ring, first fastening block and the first fastener, realize the supporting role to the percentage table through connecting the horizontal pole to realize fixing the percentage table through mutually supporting between second deformation split ring, second fastening block and the second fastener.
The utility model discloses further set up to: the supporting vertical rods are provided with straightening assemblies for adjusting the vertical state of the supporting vertical rods, the straightening assemblies are at least three groups, and the at least three groups of straightening assemblies are arranged in a circumferential array along the supporting vertical rods; the straightening assembly comprises a straightening flat plate and a straightening bolt, the straightening flat plate is arranged on the supporting vertical rod, and is provided with a straightening threaded hole, and the straightening bolt is in threaded connection with the straightening threaded hole.
Through adopting above-mentioned technical scheme, be the circumference array through setting up the leveling subassembly along supporting the montant and arrange to through alignment bolt and alignment screw hole threaded cooperation, thereby realize adjusting the height that supports the montant equidirectional, thereby realize adjusting the vertical condition that supports the montant.
To sum up, the utility model discloses following beneficial effect has: when carrying out the deflection value survey to the road surface, put road surface deflection detection device's support montant and percentage table support subaerial, rotate first lever, make the fixed block of first lever be located the holding tank of second lever to will make first lever and second lever fixed through fixed subassembly, thereby accomplish the fast assembly to road surface deflection detection device. Therefore, the utility model discloses need not to install the device through other independent subassemblies, have the equipment convenient, the equipment time is short, detect advantage that work efficiency is high.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic view of the overall structure of the embodiment of the present invention in a folded state;
FIG. 4 is an enlarged view of portion B of FIG. 3;
fig. 5 is a top view of an embodiment of the invention;
fig. 6 is a cross-sectional view taken along line C-C of fig. 5.
In the figure: 1. a measuring lever; 11. a first lever; 111. a measuring head; 112. a fixed block; 1121. a fixing hole; 12. a second lever; 121. accommodating grooves; 122. a via hole; 123. fixing grooves; 124. mounting grooves; 125. a level gauge; 126. point measuring the screw rod; 2. a hinge; 3. a fixing assembly; 31. an outer tube; 311. a limiting inner convex ring; 32. fixing the rod; 321. a limiting convex ring; 33. a compression spring; 4. a connecting rod; 5. a dial indicator bracket; 51. supporting the vertical rod; 52. a straightening component; 521. straightening the flat plate; 522. straightening the bolt; 53. a first deformed open ring; 531. a first fastening block; 532. a first bolt; 54. connecting the cross bars; 55. a second modified split ring; 551. a second fastening block; 552. a second bolt; 6. a dial indicator; 7. a support; 71. a rotating shaft; 72. a leveling assembly; 721. leveling the flat plate; 722. leveling bolts.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): a pavement deflection detection device is shown by combining a graph 1 and a graph 2 and comprises a measuring lever 1, a dial indicator bracket 5 and a dial indicator 6 arranged on the dial indicator bracket 5.
Referring to fig. 3 and 4, the measuring lever 1 includes a first lever 11 and a second lever 12, and one end of the first lever 11 is rotatably connected to one end of the second lever 12 by a hinge 2.
The first lever 11 is integrally formed with a fixing block 112 at a rotation connecting end of the first lever 11 and the second lever 12, the second lever 12 is provided with an accommodating groove 121 for accommodating the fixing block 112 at a connecting end of the second lever 12 and the first lever 11, and the accommodating groove 121 and the hinge 2 are respectively located at two sides of the second lever 12.
Referring to fig. 5 and 6, the second lever 12 is provided with two sets of fixing members 3 for detachably connecting with the fixing block 112.
Each set of fixing members 3 includes an outer tube 31, a fixing rod 32, and a compression spring 33. The length direction of the outer tube 31 is parallel to the direction of the rotation axis between the first lever 11 and the second lever 12, the lower end of the outer tube 31 is welded on the upper surface of the second lever 12, the inner peripheral wall of the outer tube 31 is integrally formed with a limiting inner cam 311, and the limiting inner cam 311 is located at the upper end of the outer tube 31. The fixing rod 32 is inserted into the outer tube 31, a limiting convex ring 321 is integrally formed on the outer peripheral wall of the fixing rod 32, and the limiting convex ring 321 is located between the end of the outer tube 31 connected with the second lever 12 and the limiting convex ring 311. The compression spring 33 is sleeved on the fixing rod 32, and the compression spring 33 is located between the inner limit convex ring 311 and the outer limit convex ring 321. The second lever 12 is provided with a through hole 122 for the fixing rod 32 to pass through, the fixing block 112 is provided with a fixing hole 1121, the fixing rod 32 is inserted into the fixing hole 1121, and the second lever 12 is provided with a fixing groove 123 for inserting the lower end of the fixing rod 32 at the groove wall of the accommodating groove 121.
The upper ends of the fixing rods 32 of the two groups of fixing assemblies 3 are connected through a connecting rod 4, and the connecting rod 4 is welded with the fixing rods 32.
As shown in fig. 1, the first lever 11 is integrally formed with a measuring head 111 at a non-connecting end of the second lever 12, and the measuring head 111 is perpendicular to the length direction of the first lever 11.
The second lever 12 is pivotally connected to the support 7, the support 7 and the measuring head 111 being located on the same side of the measuring lever 1.
As shown in fig. 6, the upper end of the holder 7 is rotatably coupled to the lower surface of the second lever 12 by a rotating shaft 71, and the axis of the rotating shaft 71 is perpendicular to the length direction of the second lever 12 and is horizontally disposed. Mounting groove 124 has been seted up to the lower surface of second lever 12, and second lever 12 has seted up the mounting hole that runs through mounting groove 124, and the rotation hole has been seted up to the upper end of support 7, and axis of rotation 71 rotates with the rotation hole and is connected, axis of rotation 71 and mounting hole interference fit.
The lower end of the support 7 is provided with a leveling component 72 for adjusting the horizontal state of the measuring lever 1, the leveling component 72 comprises a leveling flat plate 721 and four leveling bolts 722, the lower end of the support 7 is welded on the upper surface of the leveling flat plate 721, the leveling flat plate 721 is provided with four leveling threaded holes, the four leveling threaded holes are circumferentially arrayed along the connection point of the support 7 and the leveling flat plate 721, and the four leveling bolts 722 are respectively in threaded connection with the four leveling threaded holes.
The upper surface of the second lever 12 is provided with an embedding groove, a level gauge 125 is embedded in the embedding groove, and the embedding groove is located right above the mounting groove 124, that is, the level gauge 125 is located right above the support 7.
Referring to fig. 1 and 2, the dial indicator support 5 is located at the non-connecting end of the second lever 12 with the first lever 11. The dial indicator bracket 5 comprises a supporting vertical rod 51, a straightening component 52 arranged at the lower end of the supporting vertical rod 51, a first deformed split ring 53 sleeved on the supporting vertical rod 51, a second deformed split ring 55 used for installing the dial indicator 6 and a connecting cross rod 54 arranged between the first deformed split ring 53 and the second deformed split ring 55.
The straightening assembly 52 comprises a straightening flat plate 521 and four straightening bolts 522, the lower end of the supporting vertical rod 51 is welded on the upper surface of the straightening flat plate 521, the straightening flat plate 521 is provided with four straightening threaded holes, the four straightening threaded holes are circumferentially arrayed along the connecting point of the supporting vertical rod 51 and the straightening flat plate 521, and the four straightening bolts 522 are respectively in threaded connection with the four straightening threaded holes. First deformation split ring 53 has first fastening block 531 in its both open ends integrated into one piece respectively, and first fastening hole has been seted up respectively to two first fastening blocks 531, and first bolt 532 is worn to be equipped with in the first fastening hole of two first fastening blocks 531, and first bolt 532 end threaded connection first nut. The second deformed split ring 55 is sleeved on the measuring rod of the dial indicator 6. The second deformable split ring 55 is integrally formed with second fastening blocks 551 at two open ends thereof, the two second fastening blocks 551 are respectively provided with second fastening holes, the second fastening holes of the two second fastening blocks 551 are provided with second bolts 552 in a penetrating manner, and end portions of the second bolts 552 are in threaded connection with second nuts. Both ends of the connecting cross bar 54 are welded to the outer peripheral surface of the first modified split ring 53 and the outer peripheral surface of the second modified split ring 55, respectively.
A point measuring screw 126 is welded on the upper surface of the non-connecting end of the second lever 12 and the first lever 11, and the point measuring screw 126 is vertical to the upper surface of the second lever 12; and the side head of the dial indicator 6 butts against the upper end surface of the point measuring screw 126.
The horizontal distance from the rotating axis of the support 7 to the measuring head 111 and the horizontal distance from the rotating axis of the support 7 to the spot measuring screw 126 are 2 to 1.
The implementation principle of the embodiment is as follows: when the pavement deflection value is measured, the dial indicator bracket 5 and the support 7 are placed on the ground, the dial indicator 6 is arranged in the dial indicator bracket 5, and a measuring head of the dial indicator 6 is abutted against the upper end face of the point measuring screw 126; the connecting rod 4 is pulled upwards while the first lever 11 is rotated, so that the fixing block 112 of the first lever 11 is placed in the accommodating groove 121, the connecting rod 4 is loosened to enable the fixing rod 32 to penetrate through the fixing hole 1121 of the first lever 11 and be inserted into the fixing groove 123, and the leveling component 72 of the adjusting support 7 enables the measuring lever 1 to be in a horizontal state, so that the pavement deflection detection device does not need to be installed through other independent components, and the device has the advantages of convenience in assembly, short assembly time and high detection working efficiency.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The road surface deflection detection device comprises a measuring lever (1), a dial indicator support (5) and a dial indicator (6) arranged on the dial indicator support (5), wherein the measuring lever (1) comprises a first lever (11) and a second lever (12) which are connected, the first lever (11) is provided with a measuring head (111) at the non-connecting end of the first lever and the second lever (12), the side head of the dial indicator (6) is abutted against the upper surface of the second lever (12) at the non-connecting end of the second lever and the first lever (11), the second lever (12) is provided with a support (7), the support (7) is rotatably connected with the second lever (12), the support (7) is positioned between the connecting end of the second lever (12) and the first lever (11) and the dial indicator support (5), and is characterized in that the first lever (11) is rotatably connected with the second lever (12) through a rotating part, first lever (11) are provided with fixed block (112) in its link with second lever (12), second lever (12) offer holding tank (121) that are used for holding fixed block (112) in its link with first lever (11), fixed block (112) and second lever (12) can dismantle through fixed subassembly (3) and be connected.
2. The pavement deflection detection device according to claim 1, wherein the fixing assembly (3) comprises an outer tube (31) fixedly arranged on the second lever (12) and a fixing rod (32) penetrating through the outer tube (31), an inner limiting convex ring (311) is arranged on the inner peripheral wall of the outer tube (31), an outer limiting convex ring (321) is arranged on the outer peripheral wall of the fixing rod (32), the outer limiting convex ring (321) is arranged between the outer tube (31) and the connecting end of the second lever (12) and the inner limiting convex ring (311), and the inner limiting convex ring (311) and the outer limiting convex ring (321) are provided with compression elastic members; the second lever (12) is provided with a through hole (122) for a fixing rod (32) to penetrate through, the fixing block (112) is provided with a fixing hole (1121), and the fixing rod (32) is connected with the fixing hole (1121) in an inserting mode.
3. The pavement deflection detecting apparatus according to claim 2, wherein the length direction of the fixing lever (32) is parallel to the direction of the rotation axis between the first lever (11) and the second lever (12).
4. The pavement deflection detection device according to claim 3, wherein the second lever (12) is provided with a fixing groove (123) for inserting the fixing rod (32) at a groove wall of the accommodating groove (121).
5. The pavement deflection detection apparatus according to claim 4, wherein the fixing assemblies (3) are provided in multiple groups, and the fixing rods (32) of the multiple groups of fixing assemblies (3) are connected by a connecting rod (4) at one end thereof far away from the second lever (12).
6. A pavement deflection detection apparatus according to claim 1, wherein said rotatable member comprises a hinge (2).
7. A pavement deflection detection apparatus according to claim 1, characterized in that said second lever (12) is provided with a level gauge (125).
8. The pavement deflection detection device according to claim 1, wherein a leveling component (72) for adjusting the level state of the measuring lever (1) is arranged at the lower end of the support (7), the leveling component (72) comprises a leveling flat plate (721) fixedly connected to the support (7) and at least three leveling bolts (722), the leveling flat plate (721) is provided with leveling threaded holes, the leveling threaded holes correspond to the leveling bolts (722) in a one-to-one manner, the at least three leveling threaded holes are circumferentially arrayed along the fixed connection points of the support (7) and the leveling flat plate (721), and the leveling bolts (722) are in threaded connection with the leveling threaded holes.
9. The pavement deflection detection device according to claim 1, wherein the dial indicator support (5) comprises a support vertical rod (51), a first deformed split ring (53) sleeved on the support vertical rod (51), a second deformed split ring (55) sleeved on the measuring rod of the dial indicator (6), and a connecting cross rod (54) arranged between the first deformed split ring (53) and the second deformed split ring (55); the two open ends of the first deformed open ring (53) are respectively provided with a first fastening block (531), and a first fastener for enabling the two first fastening blocks (531) to approach each other is arranged between the two first fastening blocks (531); the two open ends of the second deformed open ring (55) are respectively provided with a second fastening block (551), and a second fastening piece for enabling the two second fastening blocks (551) to approach each other is arranged between the two second fastening blocks (551).
10. The road surface deflection detection device according to claim 9, wherein the vertical support rod (51) is provided with a straightening component (52) for adjusting the vertical support rod to be in a vertical state, the straightening component (52) comprises a straightening plate (521) fixedly connected to the vertical support rod (51) and at least three straightening bolts (522), the straightening plate (521) is provided with straightening threaded holes, the straightening threaded holes and the straightening bolts (522) are in one-to-one correspondence, the at least three straightening threaded holes are in a circumferential array along the fixed connection point of the vertical support rod (51) and the straightening plate (521), and the straightening bolts (522) are in threaded connection with the straightening threaded holes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379272.1U CN210797212U (en) | 2019-08-22 | 2019-08-22 | Pavement deflection detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379272.1U CN210797212U (en) | 2019-08-22 | 2019-08-22 | Pavement deflection detection device |
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| CN210797212U true CN210797212U (en) | 2020-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965060A (en) * | 2020-08-03 | 2020-11-20 | 河海大学 | Press-in type on-site modulus of resilience measuring device |
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2019
- 2019-08-22 CN CN201921379272.1U patent/CN210797212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965060A (en) * | 2020-08-03 | 2020-11-20 | 河海大学 | Press-in type on-site modulus of resilience measuring device |
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