Suspension type pavement elevation control device

Abstract

The utility model relates to a suspension type road surface elevation control device which comprises a backrest hanging rod, a cross rod and a front adjusting rod, and the backrest hanging rod, the cross rod and the front adjusting rod are all straight rods with adjustable lengths; the two ends of the cross rod are hinged to the near end of the backrest hanging rod and the near end of the front adjusting rod respectively, and fastening bolts are arranged at the hinged positions; the far end of the backrest hanging rod is suspended; an adjusting assembly is arranged at the far end of the front adjusting rod; the backrest hanging rod, the cross rod and the front adjusting rod can be attached to the back side face, the top face and the front side face of the retaining wall respectively, and a steel wire rope used for marking the elevation is hooked through the adjusting assembly. Therefore, the problem that elevation indication is difficult in the current asphalt pavement construction process is effectively solved, and favorable conditions are provided for smooth operation of construction.

Description

Technical Field

[0001] This utility model relates to a construction machinery, and more particularly to a device for road asphalt construction, specifically a suspended road surface elevation control device. Background Technology

[0002] During asphalt pavement construction, the asphalt paving height needs to be marked to ensure the smoothness of the asphalt pavement. Currently, the conventional method is to use guide seats to erect steel wire ropes, which are then used to indicate the elevation. These guide seats are mostly triangular pyramids, placed on the base layer of the pavement in the construction section, and the steel wire ropes are then erected on the guide seats.

[0003] However, during the asphalt paving of the elevated bridge, both sides of the construction road were reinforced with retaining walls. The inner side of these retaining walls adjacent to the road was sloping, making it impossible to place guide rails. Furthermore, the asphalt paving of the construction road had to be closely connected to the retaining walls, thus preventing the guide rails from being placed on the road surface, significantly impacting the construction process.

[0004] Therefore, there is an urgent need to design a device to solve the above-mentioned elevation control problem. Utility Model Content

[0005] The purpose of this invention is to address the difficulty in controlling the elevation of asphalt pavement during current asphalt pavement construction by providing a suspended pavement elevation control device. This device can be easily installed on a retaining wall next to the construction pavement and hooked onto a steel wire rope used to mark the pavement elevation, thus creating favorable conditions for the smooth construction of asphalt pavement.

[0006] The technical solution of this utility model is:

[0007] A suspended road elevation control device includes a backrest rod, a crossbar, and a front adjusting rod, all of which are straight rods with adjustable lengths. The two ends of the crossbar are hinged to the proximal ends of the backrest rod and the front adjusting rod, respectively, and fastening bolts are provided at the hinge points. The distal end of the backrest rod is suspended. The distal end of the front adjusting rod is equipped with an adjusting component. The backrest rod, crossbar, and front adjusting rod can respectively rest against the back, top, and front sides of a retaining wall, and are hooked onto a steel wire rope used for marking elevations via the adjusting component.

[0008] Furthermore, the backrest hanging rod, crossbar, and front adjustment rod are all made of telescopic rods, and are equipped with fixing bolts of a stable length.

[0009] Furthermore, the adjustment assembly includes a sleeve and a hook; the sleeve is a cylindrical shape with open ends, vertically arranged, and hinged to the far end of the front adjustment rod, and has a tightening bolt on its side wall; the hook is an L-shaped rod, with its vertical side movably inserted into the sleeve, and its horizontal side positioned below the sleeve.

[0010] Furthermore, it also includes a connecting block; the connecting block is in the shape of a short plate, one end of which is connected to the sleeve, and the other end of which is hinged to the far end of the front adjusting rod, and a fastening bolt is provided at the hinge.

[0011] Furthermore, the sleeve is provided with a verticality display structure.

[0012] Furthermore, at least one limiting groove is provided on the transverse side; the limiting groove is groove-shaped and opens upward.

[0013] The beneficial effects of this utility model are:

[0014] This utility model is reasonably designed, simple in structure, and easy to use. The backrest, crossbar, and front adjusting rod of this device can be attached to the back, top, and front sides of the retaining wall, respectively, ensuring a stable installation. Then, the wire rope is hooked onto the hook, and the distance between the hook and the ground is adjusted to ensure the wire rope accurately marks the road surface elevation, greatly facilitating the smooth construction of asphalt pavement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the image.

[0017] Figure 3 This is a diagram showing the usage state of this utility model.

[0018] Among them, 1-backrest hanging rod; 2-crossbar; 3-front adjustment rod; 4-adjustment component; 41-verticality display structure; 42-sleeve; 43-tightening bolt; 44-limiting groove; 45-hook; 46-connecting block; 5-retaining wall; 6-steel wire rope; 7-ground. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-3 As shown.

[0021] A suspended road elevation control device includes a backrest rod 1, a crossbar 2, a front adjusting rod 3, and an adjusting assembly 4.

[0022] The backrest hanging rod 1, crossbar 2, and front adjusting rod 3 are all straight rods made of telescopic rods, which can be easily adjusted in length. At the same time, the backrest hanging rod 1, crossbar 2, and front adjusting rod 3 are also equipped with fixing bolts, which can be tightened after the length is adjusted to ensure the stability of the length.

[0023] The two ends of the crossbar 2 are hinged to the proximal ends of the backrest hanging rod 1 and the front adjusting rod 3, respectively, and fastening bolts are provided at the hinge points. This allows for easy adjustment of the angles between the backrest hanging rod, the crossbar, and the front adjusting rod, and they are secured by the fastening bolts to easily conform to the shape of the retaining wall 5 at the construction site. The distal end of the backrest hanging rod 1 is suspended to accommodate the height of the retaining wall. The distal end of the front adjusting rod 3 is connected to the adjusting assembly 4.

[0024] The adjusting assembly 4 includes a sleeve 42 and a hook 45. The sleeve 42 is a cylindrical shape with open ends, vertically arranged, and connected to the distal end of the front adjusting rod 3 via a connecting block 46. The connecting block 46 is a short plate, one end of which is connected to the outer wall of the sleeve 42, and the other end is hinged to the distal end of the front adjusting rod 3. A fastening bolt is provided at the hinge, allowing the sleeve to rotate along the hinge to adjust its verticality and fix it in place.

[0025] The hook 45 is an L-shaped rod with its vertical side movably inserted into the sleeve 42 and its horizontal side positioned below the sleeve 42, allowing the hook 45 to move up and down along the sleeve 42 to change its distance from the ground 7. Simultaneously, a handwheel-shaped tightening bolt 43 is provided on the side wall of the sleeve 42 to tighten the vertical side and maintain the hook's height position.

[0026] Furthermore, the sleeve 42 is provided with a perpendicularity display structure 41 to display the perpendicularity of the sleeve and provide a reference for adjusting the sleeve. Preferably, this perpendicularity display structure can be a vertical bubble for ease of use.

[0027] Furthermore, at least one limiting groove 44 is provided on the horizontal side of the hook 45. The limiting groove 44 is groove-shaped with an upward opening, so that the wire rope 6 can be placed in the limiting groove to prevent it from sliding freely and affecting its use.

[0028] The method of using this utility model is as follows:

[0029] 1) Loosen the fastening bolts at the hinge joint between the backrest hanging rod, the crossbar and the front adjusting rod, and adjust the length of the crossbar so that the length of the crossbar is adapted to the width of the top surface of the retaining wall.

[0030] 2) Place the crossbar on the top surface of the retaining wall, and ensure that the back hanging rod and the front adjusting rod are aligned with the back and front sides of the retaining wall, respectively. Then, tighten the fastening bolts at the hinge.

[0031] 3) Adjust the length of the back hanging rod so that its far end reaches about 0.3 meters below the height of the retaining wall to prevent it from detaching from the retaining wall due to tension.

[0032] 4) Adjust the length of the front adjusting rod so that its far end is flush with the inflection point at the bottom of the retaining wall. Then, fix the length of the front adjusting rod.

[0033] 5) Adjust the angle between the sleeve and the front adjusting rod, and refer to the perpendicularity display structure to ensure the sleeve is in a vertical position. Then, tighten the sleeve.

[0034] 6) After adjusting the distance between the horizontal edge of the hook and the ground, tighten the bolt to ensure that the height of the hook meets the design requirements.

[0035] 7) Repeat steps 1)-6) above, and install one of these devices every 10 meters along the retaining wall until the construction requirements are met.

[0036] 8) Hang the wire rope in the limit groove of the hook and tighten both ends; installation is complete.

[0037] This invention allows for flexible adjustment of the angles between the backrest hook, crossbar, and front adjusting rod, ensuring they rest securely against the back, top, and front sides of the retaining wall. Then, a wire rope is hooked onto the hook, and the distance between the hook and the ground is adjusted to accurately mark the road surface elevation. This not only greatly facilitates the smooth construction of asphalt pavements but also creates favorable conditions for improving construction efficiency and quality.

[0038] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A suspended pavement elevation control device comprising a backrest hanger bar, a cross bar and a front adjustment bar, characterized in that, The backrest hanging rod, crossbar, and front adjusting rod are all straight rods with adjustable lengths. The two ends of the crossbar are hinged to the proximal ends of the backrest hanging rod and the front adjusting rod, respectively, and fastening bolts are provided at the hinges. The distal end of the backrest hanging rod is suspended. The distal end of the front adjusting rod is provided with an adjusting component. The backrest hanging rod, crossbar, and front adjusting rod can respectively abut against the back side, top surface, and front side of the retaining wall, and the steel wire rope used to mark the elevation is hooked on by the adjusting component.

2. The suspended pavement elevation control device of claim 1, wherein, The backrest hanging rod, crossbar, and front adjustment rod are all made of telescopic rods, and are equipped with fixing bolts of a stable length.

3. The suspended pavement elevation control device of claim 1, wherein, The adjustment assembly includes a sleeve and a hook; the sleeve is a cylindrical shape with open ends, vertically arranged, and hinged to the far end of the front adjustment rod, and has a tightening bolt on its side wall; the hook is an L-shaped rod, with its vertical side movably inserted into the sleeve, and its horizontal side positioned below the sleeve.

4. The suspended pavement elevation control device of claim 3, wherein, It also includes a connecting block; the connecting block is in the shape of a short plate, one end of which is connected to the sleeve, and the other end of which is hinged to the far end of the front adjusting rod, and a fastening bolt is provided at the hinge.

5. The suspended road surface elevation control device according to claim 3, characterized in that, The sleeve is equipped with a verticality display structure.

6. The suspended pavement elevation control device of claim 3, wherein, At least one limiting groove is provided on the horizontal edge; the limiting groove is groove-shaped and opens upward.

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