A highway asphalt paver screed

Abstract

The utility model relates to the technical field of highway engineering discloses a highway pitch paver ironing plate, include: base plate, base plate is rectangular shape ironing plate, extension structure, extension structure sets up in the wall surface of base plate for extending the width of base plate, extension structure includes: solid rod, slide frame, extension plate and stick rod, solid rod symmetry fixedly connected in the top both sides of base plate, slide frame sets up respectively in the wall surface of every solid rod, extension plate is symmetrically set up in the both sides of base plate, stick rod fixedly connected in the top of every extension plate side wall surface, extension plate can be installed on the side wall surface of base plate, extension structure realizes extension plate assembly extension on the side wall surface of base plate through the way of butt joint locking, and only need to adjust slide frame and sling in the whole process can realize expansion, so compared with prior art, the scheme not only can assemble without the help of bolt, but also can realize the assembly process of faster and more convenient than prior art.

Description

Technical Field

[0001] This utility model belongs to the field of highway engineering, specifically, it relates to a screed for a highway asphalt paver. Background Technology

[0002] The screed of a highway asphalt paver is the core working component of the paver. It is mainly responsible for compacting and leveling the asphalt mixture after paving, ensuring that the road surface meets the design requirements for flatness, density and uniformity.

[0003] The prior art (publication number: CN221566747U) discloses a screed for a paver, including: an assembly plate and a connecting mechanism; multiple assembly plates are arranged in a straight line, and adjacent assembly plates are detachably connected by the connecting mechanism.

[0004] Existing technologies can be extended without bolts. However, while existing technologies do not require bolts for extension, they require additional structures on both sides of the device to be used for assembly, making the assembly process more complicated.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A screed for a highway asphalt paver, comprising:

[0008] Substrate, the substrate is a rectangular ironing plate;

[0009] An extension structure is provided on the wall of the substrate to extend the width of the substrate. The extension structure includes: a fixed rod, a sliding frame, an extension plate, and a mounting rod. The fixed rods are symmetrically fixedly connected to the top two sides of the substrate. The sliding frames are respectively provided on the wall of each fixed rod. The extension plates are symmetrically arranged on both sides of the substrate. The mounting rods are fixedly connected to the top of the side wall of each extension plate. The extension plates can be installed on the side wall of the substrate.

[0010] In a preferred embodiment of this utility model, the fixed rod is a rod with a T-shaped cross section, the sliding frame is a rectangular frame that can slide in the lower half of the fixed rod, the extension plate is a rectangular plate, the sticking rod is a rod with an L-shaped cross section that can fit against the front wall of the fixed rod, and the cavity of the sliding frame can accommodate the dimensions of the upper half of the sticking rod and the lower half of the fixed rod.

[0011] In a preferred embodiment of the present invention, the extension structure further includes side grooves, retaining plates, and top grooves. The side grooves are symmetrically opened on both sides of the substrate, the retaining plates are symmetrically fixedly connected on both sides of the substrate, and the top grooves are opened at the top of both sides of the substrate, with the fixing rods located at the top grooves.

[0012] In a preferred embodiment of the present invention, the extension structure further includes a slot and a block. The slot is symmetrically opened on the front and rear walls of the extension plate, and the block is fixedly connected to the side wall of the extension plate.

[0013] In a preferred embodiment of this utility model, the card block can be inserted into the side groove, the symmetrical card plate can be inserted into the symmetrical card slot, and the same card plate, side groove, fixing rod and sliding frame are also provided on one side wall of each extension plate.

[0014] In a preferred embodiment of this utility model, the wall of the sliding frame is provided with a straightening structure, which includes a tie column, a suspension rope, a protrusion, and a suspension column. The tie column is fixedly connected to the side wall of the sliding frame, the suspension rope is sleeved on the wall of the tie column, the protrusion is fixedly connected to the top of the extension plate, and the suspension column is fixedly connected to the wall of the protrusion.

[0015] In a preferred embodiment of this utility model, the pull column is cylindrical, and the side wall of the sliding frame has an opening adapted to the length of the pull column. The two ends of the suspension rope are fixedly connected to the two ends of the pull column, the protrusion is an inverted L-shaped block, the suspension column is located on the opening wall of the protrusion, and the middle section of the suspension rope can be sleeved on the wall of the suspension column.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. By setting an extension structure and locking it in place, the extension plate can be assembled and extended onto the side wall of the substrate. The entire process only requires adjusting the sliding frame and the hanging rope to achieve the extension. Therefore, compared with the existing technology, this solution can not only be assembled without the need for bolts, but also achieve a faster and more convenient assembly process than the existing technology.

[0018] 2. By setting up a suspension structure, the assembly strength of the extension plate and the base plate can be further improved by pulling the suspension column and utilizing the principle of a suspension bridge.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2This is a disassembly diagram of the structure on both sides of the substrate of this utility model;

[0023] Figure 3 This is a disassembled view of the slide frame and the top of the base plate of this utility model;

[0024] Figure 4 This is a front view of the extension plate of this utility model;

[0025] Figure 5 This is an exploded view of the suspension rope and pull post of this utility model.

[0026] In the diagram: 20, base plate; 21, side groove; 22, card plate; 23, top groove; 24, fixing rod; 25, sliding frame; 26, tie column; 27, hanging rope; 30, extension plate; 31, card slot; 32, card block; 33, sticking rod; 34, protrusion; 35, hanging column. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0028] like Figure 1 and Figure 2 As shown, a screed for a highway asphalt paver includes: a base plate 20, which is a rectangular screed. The structure inside the base plate 20 is consistent with the assembly plate structure of the prior art (publication number: CN221566747U). In specific installation, the top of the base plate 20 is connected to the paver for installation. This is the prior art, so it will not be described in detail here.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an extension structure is provided on the wall of the substrate 20 to extend the width of the substrate 20. The extension structure includes: a fixed rod 24, a sliding frame 25, an extension plate 30, and a mounting rod 33. The fixed rods 24 are symmetrically fixedly connected to the top two sides of the substrate 20. The sliding frames 25 are respectively provided on the wall of each fixed rod 24. The extension plates 30 are symmetrically arranged on both sides of the substrate 20. The mounting rods 33 are fixedly connected to the top of the side wall of each extension plate 30. The extension plates 30 can be installed on the side wall of the substrate 20.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the fixed rod 24 is a rod with a T-shaped cross-section, the sliding frame 25 is a rectangular frame, and the sliding frame 25 can slide on the lower half of the fixed rod 24. The extension plate 30 is a rectangular plate, and the sticking rod 33 is a rod with an L-shaped cross-section. The sticking rod 33 can fit against the front wall of the fixed rod 24. The cavity of the sliding frame 25 can accommodate the upper half of the sticking rod 33 and the lower half of the fixed rod 24. The extension structure also includes a side groove 21, a retaining plate 22, and a top groove 23. The side grooves 21 are symmetrically opened on both sides of the substrate 20. The retaining plates 22 are symmetrically fixedly connected to both sides of the substrate 20. The top groove 23 is opened at the top of both sides of the substrate 20. The fixed rod 24 is located at the top groove 23. The extension structure also includes a retaining groove 31 and a retaining plate 22. Block 32 and slot 31 are symmetrically opened on the front and rear walls of the extension plate 30. Block 32 is fixedly connected to the side wall of the extension plate 30. Block 32 can be inserted into the side slot 21. Symmetrical card plates 22 can be inserted into the symmetrical slots 31. Each side wall of the extension plate 30 is also provided with the same card plate 22, side slot 21, fixing rod 24 and sliding frame 25. The wall of the sliding frame 25 is provided with a straightening structure, which includes a tie column 26, a hanging rope 27, a protrusion 34 and a hanging column 35. The tie column 26 is fixedly connected to the side wall of the sliding frame 25. The hanging rope 27 is sleeved on the wall of the tie column 26. The protrusion 34 is fixedly connected to the top of the extension plate 30. The hanging column 35 is fixedly connected to the wall of the protrusion 34.

[0031] In practical use, the asphalt of the road can be compacted by pressing the base plate 20 downward with the paver. When it is necessary to extend the length of the base plate 20, first align the position of the locking block 32 and the locking groove 31 on the side wall of the extension plate 30 with the position of the side groove 21 and the locking plate 22 on the side wall of the base plate 20 and insert them. As the connection between the extension plate 30 and the base plate 20 is completed, the sticking rod 33 will enter the top groove 23 and stick to the side wall of the fixed rod 24. At this time, the sliding frame 25 will fall downward due to gravity and frame the sticking rod 33. At this time, the connection and combination of the extension plate 30 and the base plate 20 are completed. At this time, the suspension rope 27 can be taut by pulling the middle section of the suspension rope 27 to connect with the suspension column 35. At this time, the sliding frame 25 will be pulled by the suspension rope 27 in the direction of the sliding frame 25.

[0032] In summary, by setting an extension structure and locking it in place, the extension plate 30 is assembled and extended onto the side wall of the base plate 20. The entire process only requires adjusting the sliding frame 25 and the hanging rope 27 to achieve the extension. Therefore, compared with the prior art, this solution not only eliminates the need for bolts for assembly, but also achieves a faster and more convenient assembly process than the prior art.

[0033] like Figure 5As shown, the pull post 26 is cylindrical, and the side wall of the sliding frame 25 has an opening adapted to the length of the pull post 26. The two ends of the suspension rope 27 are fixedly connected to the two ends of the pull post 26, the protrusion 34 is an inverted L-shaped block, the suspension post 35 is located on the opening wall of the protrusion 34, and the middle section of the suspension rope 27 can be sleeved on the wall of the suspension post 35.

[0034] In practical use, the middle section of the hoisting rope 27 is pulled to be connected with the hoisting column 35 so that the hoisting rope 27 is taut. At this time, the sliding frame 25 will be pulled towards the sliding frame 25 by the hoisting rope 27.

[0035] In summary, by setting up a suspension structure, the assembly robustness of the extension plate 30 and the base plate 20 can be further improved by pulling the suspension column 35 using the principle of a suspension bridge.

[0036] Working principle: When it is necessary to extend the length of the substrate 20, firstly, align the locking block 32 and locking groove 31 on the side wall of the extension plate 30 with the side groove 21 and locking plate 22 on the side wall of the substrate 20 and insert them. As the extension plate 30 and the substrate 20 are connected, the sticking rod 33 will simultaneously enter the top groove 23 and stick to the side wall of the fixing rod 24. At this time, the sliding frame 25 will fall down due to gravity and simultaneously frame the sticking rod 33. At this time, the extension plate 30 and the substrate 20 are connected and combined. At this time, the suspension rope 27 can be taut by pulling the middle section of the suspension rope 27 to connect with the suspension column 35. At this time, the sliding frame 25 will be pulled in the direction of the suspension rope 27. If it is necessary to extend the length, the other extension plate 30 can be connected and assembled with the already fixed extension plate 30 through the same steps to extend the use.

[0037] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A highway asphalt paver screed characterized by, include: The substrate (20) is a rectangular ironing plate; An extension structure is provided on the wall of the substrate (20) to extend the width of the substrate (20). The extension structure includes: a fixed rod (24), a sliding frame (25), an extension plate (30), and a stick (33). The fixed rod (24) is symmetrically fixedly connected to the top two sides of the substrate (20). The sliding frame (25) is provided on the wall of each fixed rod (24). The extension plate (30) is symmetrically arranged on both sides of the substrate (20). The stick (33) is fixedly connected to the top of the side wall of each extension plate (30). The extension plate (30) can be installed on the side wall of the substrate (20).

2. A highway asphalt paver screed as defined in claim 1 wherein, The fixed rod (24) is a rod with a T-shaped cross section, the sliding frame (25) is a rectangular frame, the sliding frame (25) can slide in the lower half of the fixed rod (24), the extension plate (30) is a rectangular plate, the sticking rod (33) is a rod with an L-shaped cross section, the sticking rod (33) can fit against the front wall of the fixed rod (24), and the cavity of the sliding frame (25) can be adapted to the size of the upper half of the sticking rod (33) and the lower half of the fixed rod (24).

3. The screed for a highway asphalt paver according to claim 1, characterized in that, The extension structure also includes a side groove (21), a retaining plate (22) and a top groove (23). The side groove (21) is symmetrically opened on both sides of the substrate (20). The retaining plate (22) is symmetrically fixedly connected on both sides of the substrate (20). The top groove (23) is opened at the top of both sides of the substrate (20). The fixing rod (24) is located at the top groove (23).

4. A highway asphalt paver screed as defined in claim 3 wherein, The extension structure also includes a slot (31) and a block (32). The slot (31) is symmetrically opened on the front and rear walls of the extension plate (30), and the block (32) is fixedly connected to the side wall of the extension plate (30).

5. A highway asphalt paver screed as defined in claim 4 wherein, The card block (32) can be inserted into the side slot (21), the symmetrical card plate (22) can be inserted into the symmetrical card slot (31), and the same card plate (22), side slot (21), fixing rod (24) and sliding frame (25) are also provided on one side wall of each extension plate (30).

6. A highway asphalt paver screed as defined in claim 1 wherein, The sliding frame (25) has a hanging structure on its wall surface. The hanging structure includes a pull column (26), a hanging rope (27), a protrusion (34), and a hanging column (35). The pull column (26) is fixedly connected to the side wall of the sliding frame (25), the hanging rope (27) is sleeved on the wall surface of the pull column (26), the protrusion (34) is fixedly connected to the top of the extension plate (30), and the hanging column (35) is fixedly connected to the wall surface of the protrusion (34).

7. A highway asphalt paver screed according to claim 6 wherein, The pull column (26) is cylindrical, and the side wall of the sliding frame (25) has an opening adapted to the length of the pull column (26). The two ends of the suspension rope (27) are fixedly connected to the two ends of the pull column (26). The protrusion (34) is an inverted L-shaped block. The suspension column (35) is located on the opening wall of the protrusion (34). The middle section of the suspension rope (27) can be sleeved on the wall of the suspension column (35).

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