Accurate control device in paving process of cement-stabilized base layer

Abstract

A precise control device in the paving process of a cement-stabilized base layer comprises a template used for preliminarily controlling the height; the erecting mechanisms are arranged at the two ends of the formwork, control lines are arranged on the erecting mechanisms, and steel wire ropes are adopted as the control lines; the supporting mechanism is arranged on the template and supports the bottom of the control line; the wire clamping device is connected to the control wire in a sliding manner; the extension rod is rotationally connected to the wire clamping device; and the control rod is slidably connected to the extension rod. The bottom side wall of the control rod drives the connecting ring to move, the positioning column drives the roller to move, when the height of the cement-stabilized base layer deviates, the positioning column drives the limiting ruler to move, at the moment, the deviation distance can be rapidly calculated through the scale marks, and timely repairing in the paving process is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of water-stabilized base course paving technology, and more specifically, to a precision control device in the process of water-stabilized base course paving. Background Technology

[0002] Water-stabilized base course, also known as cement-stabilized base course, refers to the foundation of highways or airport runways. It can be divided into water-stabilized crushed stone base course and water-stabilized sand and gravel base course. Water-stabilized base courses are usually laid using pavers.

[0003] In the paving of water-stabilized base courses, due to the performance of the paving vehicle and the paving material, there are some places where the elevation does not meet the requirements. The existing control method is to use a level or total station for measurement and control. However, the measurement instruments can only measure at a single point and cannot be used for continuous and rapid measurement and control. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a precise control device during the paving process of a water-stabilized base course, which can move on the water-stabilized base course and control the paving height along the path.

[0005] A precision control device for the paving of a water-stabilized base course includes: a template for initial height control; erection mechanisms at both ends of the template, with control lines provided on the erection mechanisms; a support mechanism on the side of the template, supporting the bottom of the control lines; a wire clamp slidably connected to the control lines; an extension rod rotatably connected to the wire clamp; and a control rod slidably connected to the extension rod.

[0006] Furthermore, the template is L-shaped, the top surface of the template is at the elevation of the top surface of the water-stabilized base course, and the bottom of the template is fixed to the roadbed by positioning nails.

[0007] Furthermore, the erection mechanism includes: a bracket disposed on the side of the template, the upper part of the bracket having a wire-passing hole; a clamping plate passing through the wire-passing hole, the clamping plate holding the control line, the rear end of the clamping plate being tapered and the front end of the clamping plate being cylindrical; and a fastening nut screwed to the front end of the clamping plate.

[0008] Furthermore, the support mechanism includes: a threaded rod fixed to the template; a positioning piece slidably connected to the threaded rod; a limiting nut screwed to the threaded rod, the two limiting nuts clamping the positioning piece; and a support rod fixed to the top of the positioning piece, the support rod supporting the control line.

[0009] Furthermore, the top of the support rod is provided with a groove, and a blocking rod is rotatably connected to the groove.

[0010] Furthermore, the wire clamp has a semi-circular groove in the middle, and the two semi-circular grooves are joined together to form a circular hole. The tops of the two wire clamps are connected by a hinge, and the bottoms of the two wire clamps are connected by a snap fastener.

[0011] Furthermore, the extension rod includes: a fixed rod rotatably connected to the side of the wire clamp; an extension rod slidably connected to the fixed rod; and a connecting ring disposed at the end of the extension rod.

[0012] Furthermore, the bottom of the control lever is supported by the connecting ring, and a positioning post is slidably connected to the bottom of the control lever. The positioning post passes through the connecting ring, and the bottom of the positioning post is a roller.

[0013] Furthermore, the top of the positioning column is provided with a limiting ruler, and the side wall of the control rod is provided with a limiting slide, and the limiting ruler is slidably connected to the limiting slide.

[0014] Furthermore, the limiting slide is provided with scale lines on its side.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] ① The bottom side wall of the control rod drives the connecting ring to move, and the positioning column drives the roller to move. When the height of the water-stabilized base layer deviates, the positioning column drives the limit ruler to move. At this time, the deviation distance can be quickly calculated through the scale line, which is convenient for timely repair during the paving process. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a precision control device during the paving process of a water-stabilized base course.

[0019] Figure 2 This is a schematic diagram of the erection mechanism in a precision control device during the paving process of a water-stabilized base course.

[0020] Figure 3 This is a schematic diagram of the support mechanism in a precision control device during the paving process of a water-stabilized base course.

[0021] Figure 4 This is a schematic diagram of a line clamp in a precision control device during the paving of a water-stabilized base course.

[0022] Figure 5 This is a schematic diagram of a control rod in a precision control device used during the paving of a water-stabilized base course.

[0023] In the diagram: 1. Template; 11. Positioning pin; 2. Erection mechanism; 21. Control line; 22. Bracket; 221. Wire hole; 23. Clip; 24. Fastening nut; 3. Support mechanism; 31. Threaded rod; 32. Positioning piece; 321. Limiting nut; 33. Support rod; 331. Barrier rod; 4. Wire clamp; 41. Hinge; 42. Buckle; 5. Extension rod; 51. Fixing rod; 52. Extension rod; 53. Connecting ring; 6. Control rod; 61. Positioning post; 611. Roller; 62. Limiting ruler; 63. Limiting slide; 64. Scale line. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 As shown, a precision control device for the paving process of a water-stabilized base course includes: a template 1 for initial height control; a support mechanism 2 located at both ends of the template 1, with a control line 21 on the support mechanism 2. The control line 21 is made of steel wire rope and is basically located 30 cm above the finished surface of the water-stabilized base course; a support mechanism 3 located on the side of the template 1, supporting the bottom of the control line 21; a wire clamp 4 slidably connected to the control line 21; an extension rod 5 rotatably connected to the wire clamp 4; and a control rod 6 slidably connected to the extension rod 5.

[0026] Template 1 is L-shaped, with the bottom surface of template 1 extending outwards. The top surface of template 1 is at the same elevation as the top surface of the water-stabilized base course. During paving, the top surface of the water-stabilized base course and the top surface of template 1 are aligned. The bottom of template 1 is fixed to the roadbed by positioning nails 11. Positioning nails 11 fix template 1 and prevent the water-stabilized base course from pushing template 1 to move.

[0027] like Figure 2As shown, the erection mechanism 2 includes: a bracket 22 located on the side of the template 1, two brackets 22, a wire hole 221 on the upper part of the bracket 22, the height of the wire hole 221 being greater than the top of the template 1, the wire hole 221 being located above the top surface of the template 1, the control line 21 passing through the wire hole 221; a clamping plate 23 passing through the wire hole 221, the two clamping plates 23 clamping the control line 21 after being attached together, the rear end of the clamping plate 23 being tapered, the diameter of the rear end of the tapered part being greater than the wire hole 221, the front end of the clamping plate 23 being cylindrical, the front end of the clamping plate 23 having external threads, the front end of the clamping plate 23 being able to pass through the wire hole 221; and a fastening nut 24 screwed to the front end of the clamping plate 23, the fastening nut 24 being threaded onto the control line 21 before installing the clamping plate 23. When installing the control line 21, clamp the two retaining plates 23 tightly to straighten the control line 21. Then, pass the cylindrical part of the retaining plate 23 through the wire hole 221. The conical part of the retaining plate 23 is squeezed by the wire hole 221, thereby preventing the control line 21 from moving. Then, tighten the fastening nut 24 to prevent the retaining plate 23 from moving and maintain the clamping force on the control line 21. The control line 21 is set parallel to the finished surface of the leveling base.

[0028] like Figure 3 As shown, the support mechanism 3 includes: a threaded rod 31 fixed to the template 1, the threaded rod 31 being vertically arranged; a positioning piece 32 slidably connected to the threaded rod 31, the thread on the threaded rod 31 not restricting the movement of the positioning piece 32; a limiting nut 321 screwed to the threaded rod 31, the limiting nut 321 being located at the upper and lower parts of the positioning piece 32, the two limiting nuts 321 clamping the positioning piece 32, thereby fixing and adjusting the height of the positioning piece 32; and a support rod 33 fixed to the top of the positioning piece 32, the support rod 33 supporting the control line 21, the support rod 33 preventing the control line 21 from bending downwards in the middle of the span due to its own weight, and the support rod 33 keeping the control line 21 in a straight state.

[0029] The top of the support rod 33 is provided with a groove, and the control line 21 is placed in the groove. A blocking rod 331 is rotatably connected to the groove. The blocking rod 331 blocks the upper part of the groove, which can reduce the probability of the control line 21 leaving the groove.

[0030] like Figure 4 As shown, the wire clamp 4 has a semi-circular groove in the middle. The diameter of the semi-circular groove is smaller than the diameter of the control line 21. The two semi-circular grooves are joined together to form a circular hole. The joined circular hole presses the control line 21 to fix the position of the two wire clamps 4. The top of the two wire clamps 4 is connected by a hinge 41, and the bottom of the two wire clamps 4 is connected by a buckle 42. The buckle 42 can prevent the two wire clamps 4 from rotating under normal conditions and maintain the compression of the control line 21.

[0031] The extension rod 5 includes: a fixed rod 51 rotatably connected to the side of the cable clamp 4; an extension rod 52 slidably connected to the fixed rod 51, the extension rod 52 being extendable and retractable relative to the fixed rod 51; and a connecting ring 53 located at the end of the extension rod 52, the connecting ring 53 moving together with the extension rod 52. The fixed rod 51, the extension rod 52, and the connecting ring 53 are made of stainless steel or steel plate, or other materials that are not easily deformed, to prevent the free ends from bending downwards.

[0032] When installing the extension rod 5, ensure that the connecting ring 53 and the control line 21 are at the same height. This height can be determined with the help of a total station. Once the height is determined, clamp the control line 21 with the wire clamp 4.

[0033] like Figure 5 As shown, the bottom of the control rod 6 is supported by the connecting ring 53. The bottom of the control rod 6 is slidably connected to the positioning post 61. The positioning post 61 extends and retracts relative to the bottom of the control rod 6. The positioning post 61 passes through the connecting ring 53. The bottom of the positioning post 61 is a roller 611. The roller 611 is a universal wheel. The roller 611 moves on the water-stabilized base layer.

[0034] The top of the positioning post 61 is provided with a limit ruler 62, which is perpendicular to the positioning post 61. The side wall of the control rod 6 is provided with a limit slide 63, and the limit ruler 62 is slidably connected to the limit slide 63. When the positioning post 61 extends or retracts, the limit ruler 62 moves up and down along the limit slide 63.

[0035] The limiting slide 63 has a scale line 64 on its side, through which the paving deviation of the water-stabilized base course can be quickly and intuitively seen.

[0036] During use, the bottom side wall of the control rod 6 drives the connecting ring 53 to move, and the positioning column 61 drives the roller 611 to move. When paving without a slope, the connecting ring 53 can be used for circular motion detection and the telescopic extension rod 52 can be used for detection. When detecting the water-stabilized base with a slope, only the extension rod 52 is telescopic. When the height of the water-stabilized base deviates, the positioning column 61 drives the limit ruler 62 to move. At this time, the deviation distance can be quickly calculated through the scale line 64, which is convenient for timely repair during the paving process.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A precision control device for the paving process of a water-stabilized base course, characterized in that, include: Template (1) for initial height control; The erection mechanism (2) is provided at both ends of the template (1), and the erection mechanism (2) is provided with control line (21); A support mechanism (3) is provided on the side of the template (1), and the support mechanism (3) supports the bottom of the control line (21); A wire clamp (4) is slidably connected to the control line (21); Rotate the extension rod (5) connected to the wire clamp (4); and A control rod (6) is slidably connected to the extension rod (5).

2. The precision control device for the paving process of a water-stabilized base course according to claim 1, characterized in that: The template (1) is L-shaped, the top surface of the template (1) is the elevation of the top surface of the water-stabilized base course, and the bottom of the template (1) is fixed to the roadbed by positioning nails (11).

3. The precision control device for the paving process of a water-stabilized base course according to claim 2, characterized in that: The erection mechanism (2) includes: A bracket (22) is provided on the side of the template (1), and a wire hole (221) is provided on the upper part of the bracket (22); A clip (23) passes through the wire hole (221), the clip (23) clamps the control line (21), the rear end of the clip (23) is conical, and the front end of the clip (23) is cylindrical; A fastening nut (24) is screwed to the front end of the slip (23).

4. The precision control device for the paving process of a water-stabilized base course according to claim 3, characterized in that: The support mechanism (3) includes: a threaded rod (31) fixed to the template (1); a positioning piece (32) slidably connected to the threaded rod (31); a limiting nut (321) screwed to the threaded rod (31), the two limiting nuts (321) clamping the positioning piece (32); and a support rod (33) fixed to the top of the positioning piece (32), the support rod (33) supporting the control line (21).

5. The precise control device for the paving process of a water-stabilized base course according to claim 4, characterized in that: The top of the support rod (33) is provided with a groove, and a blocking rod (331) is rotatably connected to the groove.

6. The precision control device for the paving process of a water-stabilized base course according to claim 5, characterized in that: The wire clamp (4) has a semi-circular groove in the middle, and the two semi-circular grooves are joined together to form a circular hole. The tops of the two wire clamps (4) are connected by a hinge (41), and the bottoms of the two wire clamps (4) are connected by a buckle (42).

7. The precise control device for the paving process of a water-stabilized base course according to claim 6, characterized in that: The extension rod (5) includes: a fixed rod (51) rotatably connected to the side of the wire clamp (4); an extension rod (52) slidably connected to the fixed rod (51); and a connecting ring (53) provided at the end of the extension rod (52).

8. The precise control device for the paving process of a water-stabilized base course according to claim 7, characterized in that: The bottom of the control rod (6) is supported by the connecting ring (53), and a positioning post (61) is slidably connected to the bottom of the control rod (6). The positioning post (61) passes through the connecting ring (53), and the bottom of the positioning post (61) is a roller (611).

9. The precision control device for the paving process of a water-stabilized base course according to claim 8, characterized in that: The positioning column (61) is provided with a limiting ruler (62) at the top, and the control rod (6) is provided with a limiting slide (63) on the side wall. The limiting ruler (62) is slidably connected to the limiting slide (63).

10. A precision control device for the paving process of a water-stabilized base course according to claim 9, characterized in that: The limiting slide (63) has scale lines (64) on its side.

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