CN214459440U - Road surface bending resistance detection device - Google Patents
Road surface bending resistance detection device Download PDFInfo
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- CN214459440U CN214459440U CN202120177378.4U CN202120177378U CN214459440U CN 214459440 U CN214459440 U CN 214459440U CN 202120177378 U CN202120177378 U CN 202120177378U CN 214459440 U CN214459440 U CN 214459440U
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Abstract
The utility model belongs to the field of pavement bending resistance detection, in particular to a pavement bending resistance detection device, which comprises two upright posts and a cross beam, wherein the cross beam is fixedly connected between the side surfaces of the upper ends of the two upright posts, the middle part of the lower surface of the cross beam is fixedly connected with a cylinder, the lower end of the cylinder is sleeved and connected with a pneumatic lifting rod, the lower end of the pneumatic lifting rod is fixedly connected with a pressing plate, the upper end of a hard spring is jointed and connected below the sliding plate, the left side surface and the right side surface of the lower end of the hard spring are fixedly connected with a sliding block, the sliding block is clamped with a clamping groove, the clamping groove is arranged on the side surface of the concave part of the positioning plate, the surface of the positioning plate is in threaded connection with a pushing screw rod, the positioning plate is arranged on the lower surface inside a guide sleeve, the pavement bending resistance detection device can simulate the bearing strength of a roadbed in the pavement bending resistance detection process, and can better reflect the bending resistance performance of the pavement, and meanwhile, the road surface bending resistance value can be visually read, and the device is convenient to use.
Description
Technical Field
The utility model relates to a road surface bending resistance detects technical field, specifically is a road surface bending resistance detection device.
Background
The road surface is a layered structure that is laid on a road bed with various road building materials and directly bears the load of vehicles. The pavement with good quality has enough strength and good stability, and the surface of the pavement can meet the requirements of smoothness, compactness and skid resistance. The pavement structure consists of a surface layer, a base layer and a cushion layer. The road surface is the main component of the highway, and the quality of the road surface can directly influence the driving speed, the safety and the transportation cost. The high-grade highway builds a good road surface, can ensure that vehicles run at high speed, safely and comfortably, can save more transportation cost, and fully play the functions of the high-grade highway.
The anti-bending detection needs to be carried out after pavement laying is finished, when vehicles run on the pavement, if the pavement anti-bending indexes do not reach the standards, the vehicles run on the pavement, the pavement collapse can be caused, the potential safety hazard can be caused, the existing pavement anti-bending detection device cannot simulate the bearing strength of a roadbed, the anti-bending performance of the pavement can not be reflected well, meanwhile, the anti-bending numerical value of the pavement cannot be read visually, and the pavement anti-bending detection device is inconvenient to use.
In order to solve the problem, the application provides a road surface bending resistance detection device.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem in the background art, the utility model provides a road surface bending resistance detection device has the bearing strength that can simulate the road bed at the in-process that detects the road surface bending resistance, can better reflect the bending resistance on road surface, can read out road surface bending resistance numerical value directly perceived simultaneously, the characteristics of the use of the device of being convenient for.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a pavement bending resistance detection device comprises two upright posts and a cross beam, the cross beam is fixedly connected between the side surfaces of the upper ends of the two upright posts, the middle part of the lower surface of the cross beam is fixedly connected with an air cylinder, the lower end of the air cylinder is sleeved and connected with a pneumatic lifting rod in a sliding manner, the lower end of the pneumatic lifting rod is fixedly connected with a pressing plate, the lower end of the upright post is fixedly connected with a fixing frame, the lower surface of the fixing frame is fixedly connected with a support, the lower end of the support is fixedly connected with the outer surface of a guide sleeve, the inner side surface of the guide sleeve is connected with a sliding plate in a sliding manner, a support column is fixedly connected above the sliding plate, a bearing plate is fixedly connected above the support column and positioned under the pressing plate, the upper end of a hard spring is attached and connected below the sliding plate, the left side surface and the right side surface of the lower end of the hard spring are fixedly connected with sliding blocks, and the sliding blocks are clamped with clamping grooves, the clamping groove is formed in the side face of the concave portion of the positioning plate, a pushing screw rod is connected to the surface of the positioning plate in a threaded mode, and the positioning plate is placed on the lower surface inside the guide sleeve.
Preferably, fixed frame quantity sets up to two, fixed surface fixedly connected with fastening spring on the fixed frame inside, fastening spring lower extreme fixedly connected with splint, the space region that splint and the inside lower surface of fixed frame formed is the standing groove.
Preferably, the lower end of the guide sleeve is fixedly connected with a base, and the lower surface of the base is fixedly connected with an anti-skid rubber pad.
Preferably, the side surface of the middle part inside the pressing plate is fixedly connected with a pressure sensor, and the pressure sensor is electrically connected with an industrial computer.
Preferably, the spacing evenly placed limiting plate in the space region of pressure sensor below and the inside lower surface of clamp plate, limiting plate below fixedly connected with guide bar, guide bar side sliding connection is in the clamp plate downside.
Preferably, the length of the guide rod is greater than the distance between the lower surface of the pressure sensor and the inner lower surface of the pressure plate.
Compared with the prior art, the beneficial effects of the utility model are as follows:
according to the pavement bending resistance detection device, the pressing plate is used for providing support for a pavement sample in the process of applying pressure to the pavement sample, and the elasticity of the hard spring simulates the bearing strength of a roadbed, so that the detection numerical value is more accurate.
Secondly, this road surface bending resistance detection device under the effect of guide bar for the limiting plate exerts pressure to pressure sensor, and the numerical value that pressure sensor detected is transmitted to the industrial computer, reads out road surface bending resistance numerical value directly perceived by the industrial computer, makes it and predetermined bending resistance numerical value do the comparison, just can draw whether up to standard road surface bending resistance can reach
This road surface bending resistance detection device has the bearing strength that can simulate the road bed at the in-process to road surface bending resistance detection, can better reflect the bending resistance on road surface, can read out road surface bending resistance numerical value directly perceived simultaneously, the characteristics of the use of the device of being convenient for.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the pressing plate structure of the present invention;
fig. 3 is the schematic diagram of the positioning plate and hard spring matching structure of the present invention.
In the figure: 1. a column; 2. a cross beam; 3. a cylinder; 4. a pneumatic lifter; 5. a splint; 6. a bearing plate; 7. a hard spring; 8. a guide sleeve; 9. a base; 10. a support pillar; 11. a placement groove; 12. a fixing frame; 13. a fastening spring; 14. pressing a plate; 15. a limiting plate; 16. a guide bar; 17. a pressure sensor; 18. pushing the screw rod; 19. a slider; 20. a card slot; 21. positioning a plate; 22. a support; 23. a sliding plate.
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 to 3, the present invention provides a technical solution: a road surface bending resistance detection device, it includes: hard spring 7, pressing plate 14, pressure sensor 17 and cylinder 3 and pneumatic lifter 4, block slider 19 in draw-in groove 20, then rotate and promote screw rod 18 and connect slider 19 and locating plate 21 closely firmly, can accomplish the change to hard spring 7, under the control of cylinder 3, pneumatic lifter 4 stretches out downwards, pressing plate 14 exerts pressure to the road surface sample under pneumatic lifter 4's effect, under the effect of guide bar 16, make limiting plate 15 exert pressure to pressure sensor 17, the numerical value that pressure sensor 17 detected transmits industrial computer, read out road surface bending resistance numerical value directly perceived by industrial computer, make it compare with predetermined bending resistance numerical value, can reach the road surface bending resistance whether up to standard, the bearing strength of the elasticity simulation road bed of hard spring 7, make detection numerical value more accurate.
A pavement bending resistance detection device comprises two upright posts 1 and a cross beam 2, the cross beam 2 is fixedly connected between the side surfaces of the upper ends of the two upright posts 1, the middle part of the lower surface of the cross beam 2 is fixedly connected with an air cylinder 3, the lower end of the air cylinder 3 is sleeved and slidably connected with a pneumatic lifting rod 4, the lower end of the pneumatic lifting rod 4 is fixedly connected with a pressing plate 14, the lower end of the upright post 1 is fixedly connected with a fixed frame 12, the lower surface of the fixed frame 12 is fixedly connected with a bracket 22, the lower end of the bracket 22 is fixedly connected with the outer surface of a guide sleeve 8, the inner side surface of the guide sleeve 8 is slidably connected with a sliding plate 23, a support column 10 is fixedly connected above the sliding plate 23, a bearing plate 6 is fixedly connected above the support column 10, the bearing plate 6 is positioned under the pressing plate 14, the upper end of a hard spring 7 is attached and connected below the sliding plate 23, the left and right side surfaces of the lower end of the hard spring 7 are fixedly connected with slide blocks 19, and clamping grooves 20 are clamped on the slide blocks 19, the clamping groove 20 is formed in the side face of the concave portion of the positioning plate 21, the surface of the positioning plate 21 is connected with the pushing screw 18 in a threaded mode, and the positioning plate 21 is placed on the lower surface inside the guide sleeve 8.
In order to be able to put the road surface sample in standing groove 11, fastening spring 13 receives the compression, and under the effect of fastening spring 13 elasticity, splint 5 is firm the centre gripping of road surface sample, and fixed frame 12 quantity sets up to two, and fixed surface is connected with fastening spring 13 on the inside of fixed frame 12, and fastening spring 13 lower extreme fixedly connected with splint 5, and the space region that splint 5 and the inside lower surface of fixed frame 12 formed is standing groove 11.
In order to keep the stability of the whole device and further improve the detection accuracy when the road surface bending resistance is detected, the lower end of the guide sleeve 8 is fixedly connected with a base 9, and the lower surface of the base 9 is fixedly connected with an anti-skidding rubber pad.
In order to conveniently transmit the value detected by the pressure sensor 17 to an industrial computer, the industrial computer visually reads the road surface bending resistance value, and compares the road surface bending resistance value with a preset bending resistance value to judge whether the road surface bending resistance reaches the standard or not, the pressure sensor 17 is fixedly connected to the side surface of the middle part inside the pressing plate 14, and the pressure sensor 17 is electrically connected with the industrial computer.
In order to be under the effect of limiting plate 15, the upper end of guide bar 16 is in the inside of clamp plate 14, prevents that guide bar 16 and clamp plate 14 from breaking away from the contact to cause pressure sensor 17 to lose effect, spacing plate 15 has evenly been placed at the interval in the space region of pressure sensor 17 below and the inside lower surface of clamp plate 14, limiting plate 15 below fixedly connected with guide bar 16, guide bar 16 side sliding connection is in the clamp plate 14 downside.
In order to enable the limiting plate 15 to apply pressure to the pressure sensor 17 under the action of the guide rod 16, the length of the guide rod 16 is larger than the distance between the lower surface of the pressure sensor 17 and the inner lower surface of the pressure plate 14.
The working principle is as follows: according to the bearing capacity of the roadbed, different hard springs 7 are replaced, the hard springs 7 are replaced by clamping a sliding block 19 in a clamping groove 20, then rotating a pushing screw rod 18 to connect the sliding block 19 and a positioning plate 21 tightly and firmly, so that the hard springs 7 can be replaced, a pavement sample is placed in a placing groove 11, a fastening spring 13 is compressed, under the action of the elastic force of the fastening spring 13, a clamping plate 5 clamps the pavement sample firmly, a cylinder 3 is started, a pneumatic lifting rod 4 extends downwards under the control of the cylinder 3, a pressure plate 14 applies pressure to the pavement sample under the action of the pneumatic lifting rod 4, in the process that the pressure plate 14 applies pressure to the pavement sample continuously, a bearing plate 6 supports the pavement sample, along with the increase of the pressure applied to the pavement sample by the pressure plate 14, under the action of a guide rod 16, a limiting plate 15 applies pressure to a pressure sensor 17, the value detected by the pressure sensor 17 is transmitted to an industrial computer, the bending resistance value of the road surface is visually read by the industrial computer and is compared with the preset bending resistance value, whether the bending resistance of the road surface reaches the standard or not can be obtained, and the bearing strength of the roadbed is simulated by the elasticity of the hard spring 7, so that the detected value is more accurate.
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 road surface bending resistance detection device, includes two stand (1) and crossbeam (2), two fixedly connected with crossbeam (2), its characterized in that between stand (1) upper end side: the middle part of the lower surface of the cross beam (2) is fixedly connected with an air cylinder (3), the lower end of the air cylinder (3) is connected with a pneumatic lifting rod (4) in a sleeved and sliding manner, the lower end of the pneumatic lifting rod (4) is fixedly connected with a pressing plate (14), the lower end of the upright post (1) is fixedly connected with a fixed frame (12), the lower surface of the fixed frame (12) is fixedly connected with a support (22), the lower end of the support (22) is fixedly connected with the outer surface of a guide sleeve (8), the inner side surface of the guide sleeve (8) is connected with a sliding plate (23) in a sliding manner, a support column (10) is fixedly connected above the sliding plate (23), a bearing plate (6) is fixedly connected above the support column (10), the bearing plate (6) is positioned under the pressing plate (14), the lower part of the sliding plate (23) is connected with the upper end of a hard spring (7) in an attaching manner, and the left and right side surfaces of the lower end of the hard spring (7) are fixedly connected with sliding blocks (19), slider (19) joint has draw-in groove (20), draw-in groove (20) are seted up in locating plate (21) concave part side, locating plate (21) surface threaded connection has a promotion screw rod (18), locating plate (21) are placed at the inside lower surface of guide sleeve (8).
2. The road surface bending resistance detection device according to claim 1, characterized in that: fixed frame (12) quantity sets up to two, fixed surface fixedly connected with fastening spring (13) on fixed frame (12) inside, fastening spring (13) lower extreme fixedly connected with splint (5), the spatial zone that splint (5) and fixed frame (12) inside lower surface formed is standing groove (11).
3. The road surface bending resistance detection device according to claim 1, characterized in that: the lower end of the guide sleeve (8) is fixedly connected with a base (9), and the lower surface of the base (9) is fixedly connected with an anti-skid rubber pad.
4. The road surface bending resistance detection device according to claim 1, characterized in that: the pressure plate (14) is characterized in that a pressure sensor (17) is fixedly connected to the side face of the middle inside the pressure plate (14), and the pressure sensor (17) is electrically connected with an industrial computer.
5. The road surface bending resistance detection device according to claim 4, characterized in that: spacing plate (15) have evenly been placed in the space region of pressure sensor (17) below and the inside lower surface of clamp plate (14) interval, limiting plate (15) below fixedly connected with guide bar (16), guide bar (16) side sliding connection is in clamp plate (14) downside.
6. The road surface bending resistance detection device according to claim 5, characterized in that: the length of the guide rod (16) is larger than the distance between the lower surface of the pressure sensor (17) and the inner lower surface of the pressure plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120177378.4U CN214459440U (en) | 2021-01-22 | 2021-01-22 | Road surface bending resistance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120177378.4U CN214459440U (en) | 2021-01-22 | 2021-01-22 | Road surface bending resistance detection device |
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| Publication Number | Publication Date |
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| CN214459440U true CN214459440U (en) | 2021-10-22 |
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| CN202120177378.4U Active CN214459440U (en) | 2021-01-22 | 2021-01-22 | Road surface bending resistance detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354380A (en) * | 2021-12-06 | 2022-04-15 | 蒋松龄 | Bending resistance detection device is used in new material processing |
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2021
- 2021-01-22 CN CN202120177378.4U patent/CN214459440U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354380A (en) * | 2021-12-06 | 2022-04-15 | 蒋松龄 | Bending resistance detection device is used in new material processing |
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Address after: 265500 Xishou, Intel Avenue, Fushan District, Yantai City, Shandong Province (office building of Highway Bureau) Patentee after: Ping An Inspection Technology (Shandong) Group Co.,Ltd. Address before: 265500 Xishou, Intel Avenue, Fushan District, Yantai City, Shandong Province (office building of Highway Bureau) Patentee before: Shandong Ping'an Engineering Quality Inspection Co.,Ltd. |