Hand-push type emulsified asphalt constant-temperature spreader

Abstract

The utility model discloses a hand-push type emulsified asphalt constant-temperature spreader, and relates to the technical field of pavement construction. The device comprises a trolley, a heat preservation box, a sealing top cover and a conveying pipe, the heat preservation box is fixed to the center of the top of the trolley, a containing opening is formed in the center of the top of the heat preservation box, a heating plate is fixed to the portion, below the containing opening, of the heat preservation box, the sealing top cover is arranged at the top end of the heat preservation box, and an inflation pump is fixed to the center of the top of the sealing top cover. The output end of the inflation pump communicates with the heat preservation box, and one side of the heat preservation box fixedly communicates with a conveying pipe. By arranging the trolley, the heat preservation box, the sealing top cover and the conveying pipe, the problems that a hand-push type emulsified asphalt spreader is not good enough in constant-temperature effect, pressure is continuously reduced in the asphalt spreading process, and the asphalt spreading uniformity is influenced are solved, and the hand-push type emulsified asphalt spreader has the advantages that the hand-push type emulsified asphalt spreader is good in constant-temperature effect and high in practicability. And the pressure uniformity of spreading is better.

Description

Technical Field

[0001] This utility model belongs to the field of road construction technology, and in particular relates to a hand-push type emulsified asphalt constant temperature spreader. Background Technology

[0002] The hand-push emulsified asphalt spreader is a small piece of equipment designed specifically for small-area road construction, repair, and maintenance. Its lightweight, flexible, and easy-to-operate features make it widely used in residential roads, parking lots, sidewalks, and for repairing localized potholes. Compared to large vehicle-mounted spreaders, it is smaller, easier to move, and suitable for narrow or dispersed working environments. It is also less expensive and easier to maintain, making it ideal for small projects or temporary construction needs. However, the hand-push emulsified asphalt spreader still has the following drawbacks in practical use:

[0003] However, during the asphalt spreading process, since the asphalt spreader is a small device that is independent of the asphalt transport vehicle, as the work progresses, the temperature of the asphalt stored in the spreader's storage structure gradually decreases, which causes the asphalt to cool slowly during the temperature drop process, affecting the smoothness of the asphalt flow.

[0004] During the asphalt transportation process, pressure needs to be applied to deliver the asphalt to the spraying equipment and to aim the asphalt at the ground and spread it on the ground. However, during the asphalt spreading process, the pressure continuously decreases, affecting the uniformity of the asphalt spreading. Utility Model Content

[0005] The purpose of this utility model is to provide a hand-push emulsified asphalt constant temperature spreader. By setting up a handcart, heat preservation box, sealed top cover and conveying pipe, it solves the problems of insufficient constant temperature effect and continuous pressure reduction during asphalt spreading, which affects the uniformity of asphalt spreading.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a hand-push type constant temperature emulsified asphalt spreader, comprising a handcart, an insulated box, a sealed top cover, and a conveying pipe. The insulated box is fixed to the center of the top of the handcart, and an opening is provided at the center of the top of the insulated box. A heating plate is fixed inside the insulated box below the opening. A sealed top cover is provided at the top of the insulated box, and an air pump is fixed to the center of the top of the sealed top cover. The output end of the air pump is connected to the insulated box. A conveying pipe is fixedly connected to one side of the insulated box. During operation, the asphalt in the insulated box is transferred and spread by pushing the handcart. The asphalt is stored in the insulated box, and the top of the insulated box is sealed by the sealed top cover to keep the asphalt warm. The asphalt in the insulated box is output through the conveying pipe.

[0008] Furthermore, a battery pack is fixed to a short side of the top of the trolley away from the conveying pipe, and a protective fence is fixed to the edge of the top of the trolley. The battery pack on the trolley provides power to the equipment on the trolley, and the protective fence protects the insulated box and the battery pack.

[0009] Furthermore, the battery pack is installed inside a protective fence, as are the insulated box and the sealed top cover. The top of the sealed top cover is lower than the top of the protective fence, which acts as a barrier to prevent workers from being burned by high temperatures.

[0010] Furthermore, a feed pipe is fixedly connected to the upper part of the side of the insulation box away from the conveying pipe. An electric control valve is fixed to the periphery of the feed pipe, and a feed inlet is fixedly connected to the top of the feed pipe. The feed pipe on the insulation box conveys asphalt into the receiving port of the insulation box, and the conveying of the feed pipe is controlled by the electric control valve.

[0011] Furthermore, each of the four corners inside the sealed top cover is connected with a mounting bolt. After passing through the sealed top cover, the mounting bolt is screwed into the top of the insulation box and is set on the outside of the receiving opening on the top of the insulation box. The mounting bolts provide installation for the sealed top cover on the insulation box.

[0012] Furthermore, the conveying pipe passes through the protective fence on the top of the handcart and extends outside the fence. The end of the conveying pipe away from the insulation box is fixedly connected to a spreading head. An electric control valve is fixed around the conveying pipe. The conveying pipe spreads asphalt through the spreading head, and the electric control valve controls the on / off of the conveying pipe.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of insufficient temperature control in hand-push emulsified asphalt spreaders by setting up a handcart and an insulated box. When the electric control valve is opened, asphalt is transported through the feed inlet to the feed pipe and then through the feed pipe to the receiving port inside the insulated box. At the same time, the heating plate is activated to keep the asphalt in the receiving port warm and prevent it from solidifying, thus improving the temperature control effect of the hand-push emulsified asphalt spreader.

[0015] This invention solves the problem of continuously decreasing pressure during asphalt spreading in a hand-push emulsified asphalt spreader, which affects the uniformity of asphalt spreading, by setting up an insulated box, a sealed top cover, and a conveying pipe. After the asphalt is delivered into the inlet of the insulated box, the first electric control valve is closed to prevent the asphalt solvent from evaporating. At the same time, the air pump is started to deliver air into the insulated box to pressurize it. After the second electric control valve is opened, the asphalt is delivered into the conveying pipe and then into the spreading head, where it is sprayed out, resulting in better uniformity of asphalt spreading. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of a hand-push type emulsified asphalt constant temperature spreader;

[0018] Figure 2 This is a three-dimensional structural diagram of the handcart;

[0019] Figure 3 This is a three-dimensional view of the structure of the insulated box after it has been partially cut open.

[0020] Figure 4 A three-dimensional structural diagram of the sealed top cover;

[0021] Figure 5 This is a three-dimensional structural diagram of the delivery pipe.

[0022] Figure label:

[0023] 1. Handcart; 101. Protective fence; 102. Battery pack; 2. Insulated box; 201. Inlet; 202. Heating plate; 203. Feed pipe; 204. Electrically controlled valve one; 205. Feed inlet; 3. Sealed top cover; 301. Mounting bolts; 302. Air pump; 4. Conveying pipe; 401. Spreading head; 402. Electrically controlled valve two. 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 skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0025] Please see Figure 1-3This utility model relates to a hand-push type constant temperature spreader for emulsified asphalt, comprising a handcart 1, an insulated box 2, a sealed top cover 3, and a conveying pipe 4. The insulated box 2 is fixed to the center of the top of the handcart 1, supporting the insulated box 2, the sealed top cover 3, and the conveying pipe 4. The insulated box 2 stores the liquefied asphalt to be sprayed. A receiving opening 201 is provided in the center of the top of the insulated box 2 to receive the liquid asphalt. A heating plate 202 is fixed inside the insulated box 2 below the receiving opening 201, and the heating plate 202 fixes the insulated box 2 in place. In this system, the asphalt in the insulation box 2 is heated and kept warm by the heating plate 202. The top of the insulation box 2 is equipped with a sealing top cover 3, which seals the top of the insulation box 2. An air pump 302 is fixed in the center of the top of the sealing top cover 3. The output end of the air pump 302 is connected to the insulation box 2. When the air pump 302 is working, it continuously fills the inlet 201 of the insulation box 2 with air to maintain the high pressure in the inlet 201. A conveying pipe 4 is fixedly connected to one side of the insulation box 2, and the asphalt in the insulation box 2 is conveyed to the spreading head 401 through the conveying pipe 4.

[0026] Specifically, a battery pack 102 is fixed to a short side of the top of the trolley 1 away from the conveying pipe 4, and a protective fence 101 is fixed to the edge of the top of the trolley 1. The battery pack 102 supplies power to the equipment on the trolley 1, and the protective fence 101 protects the insulated box 2 and the battery pack 102 on the trolley 1.

[0027] Furthermore, the battery pack 102 is installed inside the protective fence 101, and the insulation box 2 and the sealing top cover 3 are also installed inside the protective fence 101. The top height of the sealing top cover 3 is lower than the top height of the protective fence 101. The battery pack 102 and the insulation box 2 are protected by the protective fence 101.

[0028] Furthermore, a feed pipe 203 is fixedly connected to the upper part of the side of the insulation box 2 away from the conveying pipe 4. An electric control valve 204 is fixedly connected to the periphery of the feed pipe 203. A feed inlet 205 is fixedly connected to the top of the feed pipe 203. The feed inlet 205 connected to the feed pipe 203 on the insulation box 2 is used to input asphalt, which is then transported to the insulation box 2 through the feed pipe 203. The feed pipe 203 is controlled to open and close by the electric control valve 204.

[0029] The operation process of this embodiment is as follows: During operation, the electric control valve 204 is first opened, and the asphalt is transported to the feed pipe 203 through the feed port 205. The asphalt is then transported to the receiving port 201 in the heat preservation box 2 through the feed pipe 203. At the same time, the heating plate 202 is activated to keep the asphalt in the receiving port 201 warm and prevent the asphalt in the receiving port 201 from solidifying. Specific Implementation Example 2

[0030] Please see Figure 1 , 45. Based on the specific embodiment one, each of the four corners inside the sealing top cover 3 is connected with a mounting bolt 301. After the mounting bolt 301 passes through the sealing top cover 3, it is screwed into the top of the insulation box 2 and set outside the receiving opening 201 on the top of the insulation box 2. After the mounting bolt 301 on the sealing top cover 3 is inserted into the sealing top cover 3, it is screwed into the top of the insulation box 2 and pressed tightly, so that the sealing top cover 3 and the insulation box 2 are installed and secured.

[0031] Specifically, the delivery pipe 4 passes through the protective fence 101 on the top of the handcart 1 and extends out of the fence. The end of the delivery pipe 4 away from the insulation box 2 is fixedly connected to the spreading head 401. An electric control valve 402 is fixed around the delivery pipe 4. The delivery pipe 4 is controlled to open and close by the electric control valve 402. After the electric control valve 402 is opened, the asphalt is delivered to the spreading head 401 through the delivery pipe 4 and then spread onto the ground.

[0032] The operation process of this embodiment is as follows: During operation, after the asphalt is delivered into the receiving port 201 of the insulation box 2, the first electric control valve 204 is closed to prevent the asphalt solvent from evaporating. At the same time, the air pump 302 is started to deliver air into the insulation box 2 to pressurize it. After the second electric control valve 402 is opened, the asphalt is delivered into the delivery pipe 4 and then into the spreading head 401. The asphalt is sprayed out, and the asphalt can be spread by pushing the handcart 1.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hand-push type constant-temperature emulsified asphalt spreader, comprising a handcart (1), a heat preservation box (2), a sealing top cover (3) and a conveying pipe (4), characterized in that: A heat preservation box (2) is fixed at the center of the top of the handcart (1). A receiving opening (201) is provided at the center of the top of the heat preservation box (2). A heating plate (202) is fixed inside the heat preservation box (2) below the receiving opening (201). A sealing top cover (3) is provided at the top of the heat preservation box (2). An air pump (302) is fixed at the center of the top of the sealing top cover (3). The output end of the air pump (302) is connected to the heat preservation box (2). A delivery pipe (4) is fixedly connected to one side of the heat preservation box (2).

2. The hand-push type emulsified asphalt constant temperature spreader according to claim 1, characterized in that: A battery pack (102) is fixed to one short side of the top of the handcart (1) away from the delivery pipe (4), and a protective fence (101) is fixed to the edge of the top of the handcart (1).

3. A hand-propelled, constant temperature, emulsified asphalt spreader according to claim 2, characterized in that: The battery pack (102) is set inside the protective fence (101), and the heat preservation box (2) and the sealing top cover (3) are also set inside the protective fence (101), and the top height of the sealing top cover (3) is lower than the top height of the protective fence (101).

4. The hand-propelled, emulsified-asphalt constant-temperature spreader of claim 1, wherein: The upper part of the side of the heat preservation box (2) away from the conveying pipe (4) is fixedly connected to the feed pipe (203), the periphery of the feed pipe (203) is fixedly connected to the electric control valve (204), and the top of the feed pipe (203) is fixedly connected to the feed port (205).

5. A hand-propelled, constant temperature, emulsified asphalt spreader according to claim 4, characterized in that: The four corners inside the sealed top cover (3) are all connected with mounting bolts (301). After the mounting bolts (301) pass through the sealed top cover (3), they are screwed into the top of the heat preservation box (2) and set outside the receiving opening (201) on the top of the heat preservation box (2).

6. A hand-propelled, constant temperature, emulsified asphalt spreader according to claim 2, characterized in that: The conveying pipe (4) passes through the protective fence (101) on the top of the handcart (1) and extends out of the fence. The end of the conveying pipe (4) away from the heat preservation box (2) is fixedly connected to the spreading head (401). The second electric control valve (402) is fixed around the conveying pipe (4).

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