Asphalt spraying rod capable of being automatically folded

Abstract

The asphalt spraying rod capable of being folded automatically comprises a middle spraying pipe and side spraying pipes arranged on the left side and the right side of the middle spraying pipe, supports are fixed to the two ends of the middle spraying pipe respectively and used for being connected with an asphalt distribution truck, a plurality of spraying openings are evenly formed in the middle spraying pipe and the side spraying pipes, and at least one inlet is formed in the middle spraying pipe. The middle spray pipe is used for being connected with a whole vehicle pipeline, hinge seats with installation through holes are welded to the two ends of the middle spray pipe, first through holes communicated with the middle spray pipe are formed in the hinge seats, movable connecting pieces are installed in the installation through holes of the hinge seats in an inserted mode, and the movable connecting pieces are connected with one end of each side spray pipe. The end of the middle spraying pipe and the end of each side spraying pipe are further provided with a containing frame used for containing a hydraulic oil cylinder, and the hydraulic oil cylinder is connected with the other end of each side spraying pipe. The heating device has the advantages of being simple and reasonable in structure, higher in heating efficiency, lower in cost, more convenient to install and the like.

Description

Technical Field

[0001] The utility model belongs to the field of road surface mechanical equipment and relates to an automatically foldable asphalt spraying rod. Background Art

[0002] In the spraying device of the existing asphalt spreader or road sprinkler, a horizontal spraying rod is often set at the lower rear of the asphalt spreader or road sprinkler. The front of the horizontal spraying rod is connected to the liquid storage tank on the asphalt spreader or road sprinkler. Several nozzles are set horizontally below the horizontal spraying rod, and all valves are driven to open or close at the same time by a cylinder. That is, the operation can only be carried out according to the spraying width set by the vehicle body. However, in actual use, due to the difference in road width, it cannot be used in special conditions such as narrow road operations or local spraying requirements, or it will cause unnecessary energy waste, and the overall spraying efficiency is not high.

[0003] Therefore, an automatically foldable asphalt spraying rod is designed to overcome the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide an automatically foldable asphalt spraying pole which has a simple and reasonable structure, higher heating efficiency, lower cost and more convenient installation.

[0005] The utility model is realized by the following technical solutions: an automatically foldable asphalt spraying rod, comprising a central nozzle and side nozzles arranged on the left and right sides of the central nozzle, brackets are fixed at both ends of the central nozzle for connection with an asphalt spreading vehicle, a plurality of spraying ports are evenly arranged on the central nozzle and the side nozzles, at least one inlet is arranged on the central nozzle for connecting to the vehicle pipeline, hinge seats with mounting through holes are welded at both ends of the central nozzle, a first through hole connected to the central nozzle is arranged on the hinge seat, and a first through hole connected to the central nozzle is arranged on the hinge seat. A movable connecting piece is inserted into the mounting hole of the seat, and the movable connecting piece is connected to one end of each side nozzle, and a second through hole connected to the first through hole is provided on the movable connecting piece, which is used to ensure that the middle nozzle and the side nozzle are connected after installation. A placement rack for placing a hydraulic cylinder is also provided on the middle nozzle and the end of each side nozzle. The hydraulic cylinder is connected to the other end of each side nozzle, and each side nozzle is driven to flip with one end as the center point by the extension and contraction of the hydraulic cylinder, thereby realizing the expansion or folding of the side nozzle.

[0006] Preferably: the movable connecting part consists of a rotating shaft and two pairs of ear plates installed on both sides of the end of each side nozzle, the rotating shaft is inserted into the mounting hole of the hinge seat, and the two pairs of ear plates are respectively embedded and installed in the placement holes correspondingly arranged on both sides of the rotating shaft, and a fastener is provided at one end of the rotating shaft to prevent the rotating shaft from falling out when rotating. Each ear plate is provided with a placement hole for the rotating shaft and a connecting hole connected to the mounting hole of the hinge seat, so as to ensure that the liquid asphalt flowing from the whole vehicle pipeline to the central nozzle flows into the hinge seat, the rotating shaft, the ear plate in turn after passing through the central nozzle, and then enters the side nozzle, and then the corresponding spraying ports on the central nozzle and the side nozzle are opened through the control program or manually, and the liquid asphalt is sprayed from the spraying ports opened on the central nozzle and the side nozzle.

[0007] Preferably: a horizontal partition and a vertical partition are provided in the middle nozzle pipe, which divides the middle nozzle pipe into an independent first oil chamber, a second oil chamber and a third oil chamber. The first oil chamber and the second oil chamber are distributed on the left and right, and the third oil chamber is located on one side of the first oil chamber and the second oil chamber. An inlet is provided on the first oil chamber and the second oil chamber respectively, and each inlet is connected to the whole vehicle pipeline. Two second through holes are provided in the middle position of the rotating shaft, and the two second through holes are respectively connected to the first oil chamber and the third oil chamber of the middle nozzle pipe. The placement holes at both ends of the rotating shaft are respectively connected to the connecting through holes of each ear plate, so as to realize the double circulation flow of liquid asphalt in the middle nozzle pipe and improve the overall spraying efficiency.

[0008] Preferably, the fastener consists of a locking bolt, a first flat washer and a spring washer, wherein the first flat washer and the spring washer are sequentially inserted into one end of the rotating shaft, and the mounting bolt and the locking bolt are used to prevent loosening, and O-rings are respectively provided at the connection between the rotating shaft and the hinge seat for sealing.

[0009] Preferably, the placement rack and the hydraulic cylinder are connected and fixed by a pin shaft with a second flat washer, and a cotter pin is inserted into the tail hole of the pin shaft for locking.

[0010] Preferably, the control program is a PLC controller.

[0011] The beneficial effects of the utility model are as follows:

[0012] The automatically foldable asphalt spraying rod designed by the utility model has a simple and reasonable overall structure, can more effectively improve the efficiency and quality of construction, is more convenient to install, has reliable quality, is more suitable for designs with space requirements, and has a wider overall scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the present invention (side nozzle folded state).

[0014] Figure 2This is a schematic structural diagram of the present invention (side nozzle expanded state).

[0015] Figure 3 This is a schematic structural diagram of the middle nozzle of the present utility model.

[0016] Figure 4 It is a schematic diagram of the exploded structure of the hinge seat and the movable connecting part in the utility model.

[0017] Figure 5 This is a cross-sectional view of the hinged seat and the movable connecting member after installation in the utility model. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to more clearly understand the purpose, technical solutions and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0019] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inside", "outside", "horizontal", and "vertical" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or original referred to must have a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0020] The present invention will be described in detail below with reference to the accompanying drawings: Figures 1-3 As shown, an automatically foldable asphalt spraying rod comprises a central nozzle 1 and side nozzles 2 arranged on the left and right sides of the central nozzle 1. Brackets 3 are fixed to both ends of the central nozzle 1 for connecting to an asphalt spreading vehicle. A plurality of spraying ports 4 are evenly arranged on the central nozzle 1 and the side nozzles 2. At least one inlet 5 is provided on the central nozzle 1 for connecting to the pipeline of the entire vehicle. An articulated seat 7 with a mounting through hole 6 is welded at both ends of the central nozzle 1. A first through hole 8 communicating with the central nozzle 1 is provided on the articulated seat 7. A mounting bracket 3 is inserted into the mounting through hole 6 of the articulated seat. It is equipped with a movable connecting part, which is connected to one end of each side nozzle 2, and a second through hole 9 connected to the first through hole 8 is provided on the movable connecting part, which is used to ensure that the middle nozzle 1 and the side nozzle 2 are connected after installation. A placement rack 21 for placing a hydraulic cylinder 10 is also provided on the middle nozzle 1 and the end of each side nozzle 2. The hydraulic cylinder 10 is connected to the other end of each side nozzle 2. The hydraulic cylinder 10 is extended and retracted to drive each side nozzle 2 to flip with one end as the center point, thereby realizing the expansion or folding of the side nozzle 2.

[0021] The automatically foldable asphalt spraying rod designed by the utility model can unfold or fold the side nozzles according to the width of the road surface, thereby meeting and improving the overall construction efficiency, and the overall practical range is wider.

[0022] As Figure 4 shown, the active connection consists of a rotating shaft 11 and two pairs of ear plates 12 installed on both sides of the end of each side nozzle 2, the rotating shaft 11 is inserted into the mounting hole 6 of the hinge seat 7, and the two pairs of ear plates 12 are respectively embedded in the corresponding placement hole 13 installed on both sides of the rotating shaft 11, and a fastener is provided at one end of the rotating shaft 11 to prevent the rotating shaft 11 from falling out when rotating, and a connecting hole 14 is provided on each ear plate 12 to connect the placement hole 13 of the rotating shaft 11 and the mounting hole 6 of the hinge seat 7, to ensure that the liquid asphalt flowing from the vehicle pipeline to the middle nozzle 1 flows into the hinge seat 7, the rotating shaft 11, the ear plate 12, and then into the side nozzle 2, and then opens the corresponding spray port 4 of the middle nozzle 1 and the side nozzle 2 through the control program or manually, and the liquid asphalt is sprayed from the opened spray port 4 of the middle nozzle 1 and the side nozzle 2. This way of opening the spray port through the control program or manually is a conventional technology, so it is not explained in detail.

[0023] As Figure 3 shown, the middle nozzle 1 is provided with a horizontal partition 15 and a vertical partition 16, which divides the middle nozzle 1 into independent first oil cavity 17, second oil cavity 18 and third oil cavity 19, the first oil cavity 17 and the second oil cavity 18 are distributed on the left and right sides, and the third oil cavity 19 is located on one side of the first oil cavity 17 and the second oil cavity 18, and an inlet 5 is provided on each of the first oil cavity 17 and the second oil cavity 18, and each inlet 5 is connected to the vehicle pipeline, and the middle position of the rotating shaft 11 is provided with two second through holes 9, and the two second through holes 9 are respectively connected to the first oil cavity 17 and the third oil cavity 19 of the middle nozzle 1, and the placement hole 13 at both ends of the rotating shaft 11 is connected to the connecting hole 14 of each ear plate 12, and the placement hole 13 at both ends of the rotating shaft 11 and the two second through holes 9 in the middle form two groups of inlets and outlets, thereby realizing the double circulation of liquid asphalt in the middle nozzle and improving the overall spraying efficiency.

[0024] As Figure 5 shown, the fastener consists of a locking bolt 25, a first flat washer 26 and a spring washer 27, wherein the first flat washer 26 and the spring washer 27 are sequentially sleeved into one end of the rotating shaft 11, the mounting bolt 22 and the locking bolt 25 are used for anti-loose, and O-rings are respectively arranged between the connection of the rotating shaft 11 and the hinge seat 7 for sealing. The placement rack 21 and the hydraulic oil cylinder 10 are connected and fixed by the pin shaft 24 with the second flat washer 23, and the split pin 20 is inserted into the tail hole of the pin shaft 24 for locking. The control program is a PLC controller.

[0025] The automatically foldable asphalt spraying rod designed by the utility model has a simple and reasonable overall structure, can more effectively improve the efficiency and quality of construction, is more convenient to install, has reliable quality, is more suitable for designs with space requirements, and has a wider overall scope of application.

[0026] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, any equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this utility model shall be covered by the claims of this utility model.

Claims

1. An automatically foldable asphalt spraying rod, comprising a central nozzle (1) and side nozzles (2) arranged on the left and right sides of the central nozzle (1), wherein brackets (3) are fixed to both ends of the central nozzle (1) for connecting to an asphalt spreading vehicle, and a plurality of spraying ports (4) are evenly arranged on the central nozzle (1) and the side nozzles (2), characterized in that: At least one inlet (5) is provided on the central nozzle (1) for connecting to the pipeline of the entire vehicle. Both ends of the central nozzle (1) are welded with an articulated seat (7) with a mounting through hole (6). A first through hole (8) connected to the central nozzle (1) is provided on the articulated seat (7). A movable connecting piece is inserted and installed in the mounting through hole (6) of the articulated seat. The movable connecting piece is connected to one end of each side nozzle (2), and a second through hole (9) connected to the first through hole (8) is provided on the movable connecting piece to ensure that the central nozzle (1) and the side nozzle (2) are connected after installation. A placement rack (21) for placing a hydraulic cylinder (10) is also provided on the central nozzle (1) and at the end of each side nozzle (2). The hydraulic cylinder (10) is connected to the other end of each side nozzle (2). The hydraulic cylinder (10) is extended and retracted to drive each side nozzle (2) to flip with one end as the center point, thereby realizing the expansion or folding of the side nozzle (2).

2. The automatically foldable asphalt spraying boom according to claim 1, characterized in that: The movable connecting member is composed of a rotating shaft (11) and two pairs of ear plates (12) installed on both sides of the end of each side nozzle (2). The rotating shaft (11) is inserted into the mounting through hole (6) of the hinge seat (7). The two pairs of ear plates (12) are respectively embedded in the placement holes (13) correspondingly set on both sides of the rotating shaft (11). A fastener is provided at one end of the rotating shaft (11) to prevent the rotating shaft (11) from falling out when rotating. Each ear plate (12) is provided with a placement hole ( 13) and the connecting through hole (14) connected to the mounting through hole (6) of the hinge seat (7) to ensure that the liquid asphalt flowing from the whole vehicle pipeline to the middle nozzle (1) flows into the hinge seat (7), the rotating shaft (11), the ear plate (12) in sequence after passing through the middle nozzle (1) and then enters the side nozzle (2), and then the corresponding spraying ports (4) on the middle nozzle (1) and the side nozzle (2) are opened through the control program or manually, and the liquid asphalt is sprayed out from the spraying ports (4) opened on the middle nozzle (1) and the side nozzle (2).

3. The automatically foldable asphalt spraying boom according to claim 1, characterized in that: The central nozzle (1) is provided with a transverse partition (15) and a vertical partition (16), which divide the central nozzle (1) into an independent first oil chamber (17), a second oil chamber (18) and a third oil chamber (19). The first oil chamber (17) and the second oil chamber (18) are distributed on the left and right, and the third oil chamber (19) is located on one side of the first oil chamber (17) and the second oil chamber (18). An inlet (5) is provided on the first oil chamber (17) and the second oil chamber (18), respectively. Each inlet (5) is connected to the pipeline of the entire vehicle. Two second through holes (9) are provided in the middle position of the rotating shaft (11). The two second through holes (9) are respectively connected to the first oil chamber (17) and the third oil chamber (19) of the central nozzle (1). The placement holes (13) at both ends of the rotating shaft (11) are respectively connected to the connecting through holes (14) of each ear plate (12), thereby realizing a double circulation flow of liquid asphalt in the central nozzle, thereby improving the overall spraying efficiency.

4. The automatically foldable asphalt spraying boom according to claim 2, characterized in that: The fastener is composed of a locking bolt (25), a first flat washer (26) and a spring washer (27), wherein the first flat washer (26) and the spring washer (27) are sequentially inserted into one end of the rotating shaft (11), and the mounting bolt (22) and the locking bolt (25) are used to prevent loosening, and an O-ring is respectively provided at the connection between the rotating shaft (11) and the hinge seat (7) for sealing.

5. The automatically foldable asphalt spraying boom according to claim 1, characterized in that: The placement rack (21) and the hydraulic cylinder (10) are connected and fixed via a pin shaft (24) with a second flat washer (23), and a cotter pin (20) is inserted into the tail hole of the pin shaft (24) for locking.

6. The automatically foldable asphalt spraying boom according to claim 2, characterized in that: The control program is a PLC controller.

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