Asphalt spraying structure of synchronous vehicle

Abstract

The utility model discloses a synchronous vehicle asphalt spraying structure which comprises a spray pipe shell, a spray pipe, a nozzle and a spray head air cylinder, the spray pipe is arranged in the spray pipe shell, through holes are formed in the outer surface of the spray pipe located in the spray pipe shell in the circumferential direction, the lower end of the spray pipe penetrates to the lower portion of the spray pipe shell, and a positioning groove is formed in the lower end of the spray pipe. The nozzle is installed at the lower end of the spray pipe through the positioning grooves, the nozzle and the spray pipe are fixed through the spray head nut, the telescopic end of the spray head air cylinder is connected with a guide rod, the guide rod penetrates into the spray pipe, and a piston plug is arranged at the lower end of the guide rod. The flow of asphalt can be increased, so that the asphalt distribution uniformity is improved; and the spraying angle of the spraying pipe can be adjusted, the asphalt can be uniformly sprayed by different angles, and the asphalt can be sprayed to the most edge of the pavement, so that the construction quality is ensured to meet the requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to asphalt spraying technical field, concretely is a kind of synchronous car asphalt spraying structure. BACKGROUND

[0002] Synchronous car is also called synchronous stone mastic chip seal vehicle, and synchronous stone mastic chip seal refers to spraying asphalt binder and spreading aggregate simultaneously by synchronous stone mastic chip seal vehicle, so that asphalt binder and aggregate have most sufficient contact to achieve maximum adhesion between them.

[0003] The spraying pipe of synchronous car on the market has two through holes in circumferential direction, the capacity of asphalt entering the spraying pipe is fixed, and only the pressure provided by the heat preservation container of asphalt can be relied on to change the speed of spraying asphalt, and the direction of spraying pipe and nozzle cannot be adjusted after installation, so asphalt cannot be uniformly spread on the most edge of roadside sometimes, resulting in unqualified construction quality; Chinese patent application No. 202022041781.2 discloses a packing valve for asphalt system of synchronous seal vehicle and asphalt system, the piston rods of four air cylinders are inserted into the valve body and are respectively sealed by the sealing valve plate assemblies at the ends of the piston rods, and the four valves are packed on one valve body, so that multiple passage changes can be realized to achieve different working projects of asphalt system; the defects are that the spraying angle of asphalt cannot be changed, and the flow of asphalt cannot be changed, so asphalt cannot be uniformly spread on the most edge of road surface; a synchronous car asphalt spraying structure is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems of overcoming the defects of the prior art and providing a synchronous car asphalt spraying structure, which can increase the flow of asphalt to improve the uniformity of asphalt spreading, the spraying angle of the spraying pipe can be adjusted, different angles can also make the spreading uniform, asphalt can be spread to the most edge of road surface, the construction quality can meet the requirements, and the problems in the background art can be effectively solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a synchronous car asphalt spraying structure, which comprises a spraying pipe shell, a spraying pipe, a nozzle and a spraying head air cylinder, the spraying pipe is arranged in the spraying pipe shell, the outer surface of the spraying pipe in the spraying pipe shell is provided with a through hole in circumferential direction, the lower end of the spraying pipe penetrates below the spraying pipe shell, the lower end of the spraying pipe is provided with a positioning groove, the positioning groove is at least three, the nozzle is installed at the lower end of the spraying pipe through the positioning groove, the nozzle and the spraying pipe are fixed through a spraying head nut, the telescopic end of the spraying head air cylinder is connected with a guide rod, the guide rod penetrates into the spraying pipe, and the lower end of the guide rod is provided with a piston plug.

[0006] Further, the piston plug is in conical structure, and the piston plug is in sliding contact with the inner wall of the spraying pipe.

[0007] Further, the through holes are arranged at least four, and the through holes are arranged up and down along the circumferential direction of the spray pipe.

[0008] Further, the spray pipes are equidistantly distributed on the spray pipe shell.

[0009] Further, the internal cavity of the spray pipe shell is arranged as a heating cavity, the heating cavity is provided with a heat conduction oil pipeline, and the upper surface of the spray pipe shell is provided with an air pipe support.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The position of the piston plug is changed by the spray head cylinder, the flow of asphalt is increased, and the uniformity of asphalt distribution is improved; the spray angle of the spray pipe can be adjusted through the positioning groove, different angles can also make the distribution uniform, and the asphalt can be distributed to the edge of the road surface, so that the construction quality meets the requirements.

[0012] 2. The heat conduction oil pipeline circulates heat conduction oil, which is used for heating the asphalt in the heating cavity to prevent the asphalt from solidifying, and loosens the spray head nut, so that the nozzle can be taken out from the lower end of the spray pipe, and the nozzle can be conveniently repaired and replaced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the utility model A-A section;

[0015] Figure 3 It is a spray pipe axonometric drawing of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the utility model spray pipe top view;

[0017] Figure 5 It is a structural schematic diagram of the utility model spray pipe section.

[0018] In the drawing: 1 spray head cylinder, 2 air pipe support, 3 heat conduction oil pipeline, 4 spray pipe, 5 spray head nut, 6 nozzle, 7 heating cavity, 8 spray pipe shell, 9 piston plug, 10 guide rod, 11 positioning groove, 12 through hole. DETAILED DESCRIPTION

[0019] In the description of the utility model, need understanding is, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and it is not indicated or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as a limitation on the utility model.

[0020] Please refer to Figures 1-5 The utility model provides a technical scheme: a synchronous car asphalt spraying structure, including spray pipe shell 8, spray pipe 4, nozzle 6 and spray head cylinder 1, spray pipe 4 sets up in spray pipe shell 8, spray pipe 4 is distributed on spray pipe shell 8 with equal interval, the outer surface circumference direction of spray pipe 4 inside spray pipe shell 8 is provided with through -hole 12, the lower end of spray pipe 4 is worn to the below of spray pipe shell 8, the lower end of spray pipe 4 is provided with positioning groove 11, this positioning groove 11 is provided with at least three, nozzle 6 is installed at the lower end of spray pipe 4 through positioning groove 11, changes the installation position of nozzle 6 and positioning groove 11, can adjust the angle of asphalt that nozzle 6 sprays, adjusts conveniently, satisfies the use demand, nozzle 6 and spray pipe 4 between through spray head nut 5 are fixed, loosen spray head nut 5, can take out nozzle 6 from the lower end of spray pipe 4, is convenient for overhaul and replaces nozzle 6, the telescopic end of spray head cylinder 1 is connected with guide rod 10, guide rod 10 is worn to spray pipe 4, and the lower end of guide rod 10 is provided with piston plug 9.

[0021] The piston plug 9 is provided as a conical structure, which is in sliding contact with the inner wall of the spray pipe 4. The piston plug 9 is driven by the spray head cylinder 1 to move up and down. When the piston plug 9 extends to the lowermost end of the spray pipe 4, the spray pipe 4 is blocked, and the nozzle 6 is in a closed state. The piston plug 9 moves upward, and the through holes 12 and the spray pipe 4 are in a pass-through state. The more the number of through holes 12 and the spray pipe 4 are connected, the more asphalt enters the spray pipe 4, and the more asphalt is sprayed by the nozzle 6. By changing the position of the piston plug 9, the efficiency of the asphalt sprayed by the nozzle 6 can be adjusted, which is convenient to adjust.

[0022] The through holes 12 are provided as at least four, and are arranged up and down along the circumferential direction of the spray pipe 4. Multiple through holes 12 are provided to increase the flow of asphalt and improve work efficiency.

[0023] The internal cavity of the spray pipe shell 8 is arranged as a heating cavity 7, the heating cavity 7 is communicated with an asphalt heat preservation tank, the asphalt heat preservation tank provides asphalt into the heating cavity 7 through an asphalt pump, a heat conducting oil pipeline 3 is arranged in the heating cavity 7, heat conducting oil flows in the heat conducting oil pipeline 3, and the heat conducting oil is used for heating the asphalt in the heating cavity 7 and preventing the asphalt from solidifying, an air pipe support 2 is arranged on the upper surface of the spray pipe shell 8, the air pipe support 2 is used for fixing air pipes of the spray head cylinder 1 and prevents the distribution of the spray head cylinder 1 from being disorderly.

[0024] Working principle: the asphalt pump punches the asphalt in the asphalt heat preservation tank into the heating cavity 7; the heat conducting oil in the heat conducting oil pipeline 3 heats the asphalt, prevents the asphalt from solidifying, makes the asphalt in a flowing state; the spray head cylinder 1 drives the piston plug 9 to move upwards, so that the spray pipe 4 is in a pass-through state, the asphalt is sprayed out from the nozzle 6, the spray head cylinder 1 drives the piston plug 9 to move downwards, when the piston plug 9 extends to the lowermost end of the spray pipe 4, the spray pipe 4 is blocked, and the nozzle 6 is in a closed state.

[0025] The basic principle, main features and advantages of the utility model are shown and described above, under the premise of not departing from the utility model spirit and range, the utility model has various changes and improvements, and these changes and improvements all fall into the range of the utility model claimed.

Claims

1. A synchronized asphalt spraying structure for a vehicle comprising a spraying tube housing (8), a spraying tube (4), a nozzle (6) and a spraying head cylinder (1), characterized in that: The nozzle (4) is arranged in the nozzle shell (8), the outer surface of the nozzle (4) inside the nozzle shell (8) is provided with through holes (12) in the circumferential direction, the lower end of the nozzle (4) penetrates below the nozzle shell (8), the lower end of the nozzle (4) is provided with positioning grooves (11), the positioning grooves (11) are at least three, the nozzle (6) is installed at the lower end of the nozzle (4) through the positioning grooves (11), the nozzle (6) and the nozzle (4) are fixed through the nozzle nut (5), the telescopic end of the nozzle cylinder (1) is connected with the guide rod (10), the guide rod (10) penetrates into the nozzle (4), and the lower end of the guide rod (10) is provided with a piston plug (9).

2. A synchronized asphalt spraying structure according to claim 1, characterized in that: The piston plug (9) is arranged in a conical structure, and the piston plug (9) is in sliding contact with the inner wall of the nozzle (4).

3. A synchronized asphalt spraying structure as claimed in claim 1, wherein: The through holes (12) are at least four, and the through holes (12) are arranged up and down along the circumferential direction of the nozzle (4).

4. A synchronized asphalt spraying structure as claimed in claim 1, wherein: The nozzles (4) are equally spaced on the nozzle shell (8).

5. A synchronized asphalt spraying structure as claimed in claim 1, wherein: The inner cavity of the nozzle shell (8) is arranged as a heating cavity (7), the heating cavity (7) is provided with a heat conduction oil pipeline (3), and the upper surface of the nozzle shell (8) is provided with an air pipe support (2).

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