CN217078329U - Pavement engineering roughness detection device - Google Patents

Abstract

The utility model discloses a pavement engineering flatness detection device, which belongs to the technical field of road engineering detection appliances. A pavement engineering flatness detection device comprises a measuring ruler. A tubular level is symmetrically installed at the top edge of the measuring ruler. The bottom of the measuring ruler is symmetrically provided with a groove, the inner side of the groove is fixedly connected with a cylindrical rod, a bearing is installed under the bottom opening of the groove, a connecting block is installed on the upper surface of the bearing, and the connecting block is inserted into the cylindrical rod. A connecting seat is installed under the bearing, a cylindrical shaft is welded on the upper surface of the connecting seat, and the cylindrical shaft is connected with the inner ring of the bearing by interference, a sleeve is installed under the connecting seat, and the bottom end of the sleeve is A screw rod is installed, the bottom end of the screw rod is welded with a base, and the lower surface of the base is provided with anti-skid lines, which can realize the comparison of the data measured by two laser ranging heads, and then can measure the smoothness of the road surface It improves the accuracy and accuracy of detection.

Description

A kind of pavement engineering flatness detection device

technical field

The utility model relates to the technical field of road engineering detection appliances, in particular to a pavement engineering flatness detection device.

Background technique

Road engineering refers to the whole process of planning, design, construction, maintenance and management of roads and the engineering entities they are engaged in. Like any other category of civil engineering, road engineering has distinct technical, economic and managerial characteristics. However, the existing flatness detection device for road engineering detection reduces the efficiency during detection and use, and the operation is complicated and time is wasted. The existing patent is a pavement engineering flatness detection device, which is disclosed in the patent application number CN202023061891.1. The disclosed technology can solve the above problems.

However, the existing device is fixed on the bottom of the vehicle for measurement, and the measured data is inaccurate due to the bumping of the vehicle during driving. Therefore, we propose a road surface engineering flatness detection device to solve the above problems.

Utility model content

1. Technical problems to be solved

In view of the problems existing in the prior art, the purpose of the present invention is to provide a pavement engineering flatness detection device, which can realize the comparison of the data measured by two laser ranging heads, and then can measure the flatness of the pavement. It improves the accuracy and accuracy of detection.

2. Technical solutions

In order to solve the above problems, the present invention adopts the following technical solutions.

A pavement engineering flatness detection device includes a measuring ruler, a tubular level is symmetrically installed at the top edge of the measuring ruler, a groove is symmetrically opened at the bottom of the measuring ruler, and a cylindrical rod is fixedly connected to the inner side of the groove, A bearing is installed below the bottom opening of the groove, a connecting block is installed on the upper surface of the bearing, and the connecting block is inserted and connected with the cylindrical rod, a connecting seat is installed under the bearing, and a cylindrical shaft is welded on the upper surface of the connecting seat. , and the cylindrical shaft is connected with the inner ring of the bearing by interference, a sleeve is installed under the connecting seat, a screw rod is installed at the bottom end of the sleeve, a base is welded at the bottom end of the screw rod, and the lower surface of the base is provided with anti-skid The inner threaded sleeve is fixedly connected to the inner side of the bottom port of the sleeve, and the inner threaded sleeve is screwed with the lead screw, and a laser distance measuring head is symmetrically installed at the bottom edge of the measuring ruler.

Further, a handle is fixedly connected to the middle of the top of the measuring ruler, and the outer wall of the handle is covered with a raised-point glue pad.

Further, the size of the connecting block is smaller than the internal size of the groove, a through hole is formed at the insertion point of the cylindrical rod and the connecting block, and the inner diameter of the through hole is adapted to the outer diameter of the cylindrical rod.

Further, handles are welded on the outer walls on both sides of the sleeve.

Further, a top plate is welded on the top of the sleeve, a mounting hole is opened at the edge of the surface of the top plate, and the top plate is fixedly connected to the connecting seat through bolts.

Further, a limit plate is installed on the top end of the screw rod, and the limit plate is located inside the sleeve, the limit plate is arranged in a circular structure, and the outer diameter of the limit plate is larger than the inner threaded sleeve.

3. Beneficial effects

Compared with the prior art, the advantages of the present utility model are:

(1) In this scheme, two manual drive sleeves are used to make the inner thread sleeve on the inside of the port rotate with the screw rod, and then the measuring ruler is adjusted in the horizontal direction. When the top of the measuring ruler is symmetrically installed with the pipe level When the bubbles are all centered, it means that the measuring ruler is in a horizontal state. The distance between the road surface and the transmitting end can be measured by the laser distance measuring head, and the data measured by the two laser distance measuring heads can be compared, and then the smoothness of the road surface can be measured. It improves the accuracy and accuracy of detection.

(2) In this solution, by symmetrically arranging handles on the outer wall of the sleeve, the force arm of the sleeve during the rotation process can be effectively extended, thereby facilitating the manual driving of the sleeve to rotate.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the structural representation under another perspective of the present utility model;

3 is a schematic diagram of the bottom structure of the measuring ruler of the present invention;

4 is a schematic structural diagram of a connecting block of the present invention;

Fig. 5 is the structural schematic diagram of the connecting seat of the present invention;

FIG. 6 is a schematic diagram of the internal structure of the sleeve 4 of the present invention.

Description of the labels in the figure:

1. Measuring ruler; 101, tubular level; 102, handle; 103, groove; 104, cylindrical rod;

2. Bearing; 201. Connection block;

3. Connecting seat; 301. Cylindrical shaft;

4. Sleeve; 401, lead screw; 402, handle; 403, top plate; 404, base; 405, internal thread sleeve; 406, limit plate;

5. Laser ranging head.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. For example, based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Example:

1-6, a pavement engineering flatness detection device includes a measuring ruler 1, a tubular level 101 is symmetrically installed at the top edge of the measuring ruler 1, a groove 103 is symmetrically opened at the bottom of the measuring ruler 1, and the groove 103 A cylindrical rod 104 is fixedly connected on the inner side, a bearing 2 is installed under the bottom opening of the groove 103, a connecting block 201 is installed on the upper surface of the bearing 2, and the connecting block 201 is connected with the cylindrical rod 104 by plugging, and a connecting seat 3 is installed under the bearing 2, A cylindrical shaft 301 is welded on the upper surface of the connecting seat 3, and the cylindrical shaft 301 is connected with the inner ring of the bearing 2 by interference. A sleeve 4 is installed under the connecting seat 3, a screw rod 401 is installed at the bottom end of the sleeve 4, and the bottom end of the screw rod 401 is installed. The base 404 is welded, and the bottom surface of the base 404 is provided with anti-skid lines, the inner side of the bottom port of the sleeve 4 is fixedly connected with an internal thread sleeve 405, and the internal thread sleeve 405 is screwed with the lead screw 401, and the bottom edge of the measuring ruler 1 is symmetrically installed With laser ranging head 5;

By setting the length of the measuring ruler 1 at 3 m, manually placing the measuring ruler 1 on the road, using the base 404 to abut the ground, and the lower surface of the base 404 is provided with anti-skid lines, which can effectively improve the distance between the base 404 and the road. The friction force, through two manual driving of the sleeve 4, the inner threaded sleeve 405 on the inner side of the port rotates with the screw 401, and during the rotation of the sleeve 4, the cylindrical shaft 301 on the connecting seat 3 will cooperate with the bearing 2. The inner ring rotates, so that the connecting block 201 rotates with the cylindrical rod 104, and then the measuring ruler 1 is adjusted in the horizontal direction. When the air bubbles in the tubular level 101 are symmetrically installed on the top of the measuring ruler 1, it means that the measurement The ruler 1 is in a horizontal state, and an external display control device is connected through the laser ranging head 5. The laser diode is aimed at the road surface to emit laser pulses through the laser ranging head 5. After being reflected by the target, the laser scatters in all directions, and part of the scattered light returns to the road. The receiver on the laser ranging head 5 can measure the distance between the road surface and the transmitting end.

Referring to FIG. 1 , a handle 102 is fixedly connected to the middle of the top of the measuring ruler 1 , and the outer wall of the handle 102 is covered with a raised glue pad.

Referring to Figures 3 and 4, the size of the connecting block 201 is smaller than the internal size of the groove 103, the cylindrical rod 104 and the connecting block 201 are inserted with a through hole, and the inner diameter of the through hole matches the outer diameter of the cylindrical rod 104. When measuring During the horizontal adjustment of the ruler 1, the connecting block 201 will cooperate with the cylindrical rod 104 to rotate to avoid connection interference during the adjustment process.

Referring to FIG. 1 , handles 402 are welded on the outer walls of both sides of the sleeve 4. By symmetrically arranging the handles 402 at the outer walls of the sleeve 4, the lever arm of the sleeve 4 during the rotation process can be effectively extended, thereby facilitating the manual driving of the sleeve. 4 Turn.

Referring to FIGS. 1 and 5 , the top of the sleeve 4 is welded with a top plate 403 , a mounting hole is provided at the edge of the surface of the top plate 403 , and the top plate 403 is fixedly connected to the connecting seat 3 through bolts, so that the sleeve 4 can be easily installed below the connecting seat 3 .

Referring to FIG. 6 , a limit plate 406 is installed on the top of the screw rod 401 , and the limit plate 406 is located inside the sleeve 4 , the limit plate 406 is arranged in a circular structure, and the outer diameter of the limit plate 406 is larger than the inner threaded sleeve 405 . After the position plate 406 is in contact with the female threaded sleeve 405 , the sleeve 4 can be restricted from continuing to move, and the sleeve 4 and the screw rod 401 can be prevented from being detached.

In use: by setting the length of the measuring ruler 1 at 3m, manually placing the measuring ruler 1 on the road surface, using the base 404 to abut the ground, and the lower surface of the base 404 is provided with anti-skid patterns, which can effectively improve the base 404 The frictional force with the road surface is driven by two manual drives of the sleeve 4, so that the inner threaded sleeve 405 on the inner side of the port rotates with the screw 401, and during the rotation of the sleeve 4, the cylindrical shaft 301 on the connection seat 3 will rotate. Cooperate with the inner ring of the bearing 2 to rotate, so that the connecting block 201 is rotated with the cylindrical rod 104, and then the measuring ruler 1 is adjusted in the horizontal direction. When the air bubbles in the tubular level 101 are symmetrically installed on the top of the measuring ruler 1, the Then this means that the measuring ruler 1 is in a horizontal state, and the display control device is connected to the external display control device through the laser distance measuring head 5. Through the laser distance measuring head 5, the laser diode is aimed at the road surface to emit laser pulses. After being reflected by the target, the laser light is scattered in all directions. The scattered light returns to the receiver on the laser ranging head 5, so that the distance between the road surface and the transmitting end can be measured, and the data measured by the two laser ranging heads 5 can be compared to measure the smoothness of the road surface and improve the In order to ensure the accuracy and accuracy of detection, HG-C1100 can be selected for the model of laser rangefinder 5.

The above descriptions are only preferred specific embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improvement concept, equivalently replaces or changes, should be covered within the protection scope of the present utility model.

Claims (6)

1. A pavement engineering flatness detection device, characterized in that it comprises a measuring ruler (1), and a tubular level (101) is symmetrically installed at the top edge of the measuring ruler (1), and the measuring ruler (1) A groove (103) is symmetrically opened at the bottom, a cylindrical rod (104) is fixedly connected to the inner side of the groove (103), a bearing (2) is installed under the bottom opening of the groove (103), and the bearing (2) A connecting block (201) is installed on the upper surface, and the connecting block (201) is connected to the cylindrical rod (104) by inserting, a connecting seat (3) is installed under the bearing (2), and the upper surface of the connecting seat (3) is connected A cylindrical shaft (301) is welded, and the cylindrical shaft (301) is connected with the inner ring of the bearing (2) by interference, a sleeve (4) is installed under the connecting seat (3), and the bottom end of the sleeve (4) A screw rod (401) is installed, the bottom end of the screw rod (401) is welded with a base (404), and the lower surface of the base (404) is provided with anti-skid patterns, and the inner side of the bottom port of the sleeve (4) is fixedly connected with an inner A threaded sleeve (405) is provided, and the inner threaded sleeve (405) is screwed with the lead screw (401), and a laser distance measuring head (5) is symmetrically installed at the bottom edge of the measuring ruler (1). 2. A pavement engineering flatness detection device according to claim 1, characterized in that: a handle (102) is fixedly connected to the top middle of the measuring ruler (1), and the outer wall of the handle (102) is covered with a handle (102). Raised pads. 3. A pavement engineering flatness detection device according to claim 1, characterized in that: the size of the connecting block (201) is smaller than the internal size of the groove (103), and the cylindrical rod (104) and the connecting block ( 201) A via hole is opened at the insertion point, and the inner diameter of the via hole is adapted to the outer diameter of the cylindrical rod (104). 4. A pavement engineering flatness detection device according to claim 1, characterized in that: handles (402) are welded to the outer walls on both sides of the sleeve (4). 5 . The pavement engineering flatness detection device according to claim 1 , wherein a top plate ( 403 ) is welded on the top of the sleeve ( 4 ), and a mounting hole is opened at the surface edge of the top plate ( 403 ). 6 . , and the top plate (403) is fixedly connected with the connecting seat (3) through bolts. 6. A pavement engineering flatness detection device according to claim 1, characterized in that: a limit plate (406) is installed at the top of the screw rod (401), and the limit plate (406) is located on the sleeve (4). ), the limiting plate (406) is arranged in a circular structure, and the outer diameter of the limiting plate (406) is larger than the inner threaded sleeve (405).

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