阅读说明：本技术 热沥青输送喷洒加热枪 (Hot asphalt conveying, spraying and heating gun ) 是由 胡信平 孔令雪 于公明 刘跃海 于 2019-11-12 设计创作，主要内容包括：本发明涉及沥青使用设备技术领域,公开了热沥青输送喷洒加热枪,包括沥青专用耐热管、沥青泵接口、开关、把手、耐高温电热丝、枪体；沥青专用耐热管的底端连通有四通,四通的底端设置由沥青泵接口,四通的上下端对称连接有两组加热丝接头,沥青专用耐热管的内部最内层设置有耐高温电热丝,耐高温电热丝的外圈包裹有一层绝缘耐高温管,绝缘耐高温管的外表面与沥青专用耐热管的内表面之间设置有用于沥青输送区域,位于枪体前端的沥青专用耐热管的外部套装有一层支撑金属管,支撑金属管上固定安装有两组便于操作支撑金属管的把手,位于后侧的把手的下表面设置有一组开关,开关通过电线电性连接到设置在四通上侧位置的沥青泵开关接口上。(The invention relates to the technical field of asphalt using equipment, and discloses a hot asphalt conveying and spraying heating gun, which comprises a special asphalt heat-resistant pipe, an asphalt pump connector, a switch, a handle, a high-temperature-resistant electric heating wire and a gun body; the bottom intercommunication of the special heat-resistant pipe of pitch has the cross, the bottom setting of cross is by pitch pump interface, the last lower terminal symmetry of cross is connected with two sets of heater strip connectors, the inside inlayer of the special heat-resistant pipe of pitch is provided with high temperature resistant heating wire, the outer lane parcel of high temperature resistant heating wire has the insulating high temperature resistant pipe of one deck, be provided with between the surface of insulating high temperature resistant pipe and the special heat-resistant pipe of pitch and be used for pitch conveying area, the outside cover that is located the special heat-resistant pipe of pitch of rifle body front end is equipped with the one deck and supports the tubular metal resonator, fixed mounting has the handle of two sets of operations support tubular metal resonators of being convenient for on the support tubular metal resonator, the lower surface that is located the handle of rear side is provided.)

1. The hot asphalt conveying and spraying heating gun comprises a special asphalt heat-resistant pipe (10), an asphalt pump interface (11), a switch (16), a handle (17), a high-temperature-resistant electric heating wire (21) and a gun body (22); the tail end of the gun body (22) is communicated with a spray head, the bottom end of the special asphalt heat-resistant pipe (10) is communicated with a cross joint (12), the bottom end of the cross joint (12) is provided with an asphalt pump interface (11), the special asphalt heat-resistant pipe is characterized in that the upper end and the lower end of the cross joint (12) are symmetrically connected with two groups of heating wire joints (15), the innermost layer of the special asphalt heat-resistant pipe (10) is provided with a high-temperature resistant heating wire (21), the outer ring of the high-temperature resistant heating wire (21) is wrapped with a layer of insulating pipe (20), a zone for conveying asphalt is arranged between the outer surface of the insulating high-temperature resistant pipe (20) and the inner surface of the special asphalt heat-resistant pipe (10), the special asphalt heat-resistant pipe (10) positioned at the front end of the gun body (22) is sleeved with a layer of supporting metal pipe (18), the lower surface of the handle (17) positioned at the rear side is provided with a group of switches (16), and the switches (16) are electrically connected to an asphalt pump switch interface (14) arranged at the upper side of the four-way joint (12) through electric wires (13).

2. The hot asphalt delivery, spray and heating gun according to claim 1, wherein the length of the asphalt-specific heat-resistant pipe (10) is 15 meters or less of the heating wire joint.

3. The hot asphalt delivery, spray and heat gun according to claim 2, wherein the high temperature resistant heating wire (21) is made of stainless steel.

4. The hot asphalt delivery, spray and heat gun according to claim 3, wherein both ends of the high temperature resistant heating wire (21) are electrically connected to the heater wire connections (15) on the upper and lower sides of the cross (12), respectively.

5. The hot asphalt delivery sprinkling heating gun according to claim 4, wherein the high temperature resistant heating wire (21) is provided in a structure whose length and thickness can be adjusted according to the length and inner diameter of the heat-resistant pipe (10) dedicated to asphalt.

6. The hot asphalt delivery, spray and heat gun according to claim 5, wherein an insulating gasket is provided between the cross-piece (12) and the high temperature resistant heating wire (21).

7. A hot asphalt conveying, spraying and heating gun according to any one of claims 1-6, characterized in that the tail end of the gun body (22) is communicated with a group of three-way joints (19), and the three-way joints (19) are respectively provided with a group of interfaces for adjusting heating wires and another installation port for installing different spray heads.

8. The hot asphalt conveying, spraying and heating gun according to claim 7, characterized in that the tee joint (19) and the end of the gun body (22), and the bottom end of the asphalt special heat-resistant pipe (10) and the cross joint (12) are connected through threaded cylinders.

Technical Field

The invention relates to the technical field of asphalt using equipment, in particular to a hot asphalt conveying and spraying heating gun.

Background

The existing asphalt spraying equipment is a large-scale spraying vehicle, and a fixed spraying device is generally used; or the asphalt is sprayed through a pipeline, and the emulsified asphalt can only be sprayed by using a plurality of independent spraying devices and small asphalt spraying vehicles.

There are also spray guns that can spray hot asphalt, but the design is complicated, and equipment is heavy, and pipeline length is shorter, and heating efficiency is low, and the energy consumption is high, and preheating time is long, and factor of safety is low, and refer to figure 1, its structure is roughly: the innermost layer is hot asphalt, the hot asphalt is wrapped by an asphalt pipe outside the hot asphalt, the middle part is a heating wire, and the outermost layer is a heat-resistant pipe. Because the design is complicated, so the pipe is thick, and because pitch pipe thermal conductivity nature is not good, lead to heating effect bad, the heat can only be gived off through outside heat-resistant pipe, leads to heat-resistant pipe temperature higher, causes personnel's damage easily. The existing small asphalt spraying vehicle can not spray high-temperature asphalt; the spray gun with the heating function has the defects of complex design, low heating efficiency, low safety factor, thick pipe diameter of a product, heavy weight and close spraying distance. It is therefore desirable to design a heat gun that addresses these problems.

Disclosure of Invention

The present invention is directed to a hot asphalt delivery spray heating gun that solves the problems set forth in the background above.

In order to achieve the purpose, the invention provides the following technical scheme: the hot asphalt conveying and spraying heating gun comprises a special asphalt heat-resistant pipe, an asphalt pump interface, a switch, a handle, a high-temperature-resistant electric heating wire and a gun body; the tail end of the gun body is communicated with a spray head for spraying asphalt, the bottom end of the special asphalt heat-resistant pipe is communicated with a four-way joint, the bottom end of the four-way joint is provided with an asphalt pump interface, and the special asphalt heat-resistant pipe can be communicated to an asphalt source through the asphalt pump interface, so that the asphalt is input into the special asphalt heat-resistant pipe. The upper end and the lower end of the four-way joint are symmetrically connected with two groups of heating wire joints, the innermost layer of the special asphalt heat-resistant pipe is provided with a high-temperature-resistant heating wire, the outer ring of the high-temperature-resistant heating wire is wrapped with a layer of insulating high-temperature-resistant pipe, the area between the outer surface of the insulating high-temperature-resistant pipe and the inner surface of the special asphalt heat-resistant pipe is used for conveying asphalt, and the asphalt and the high-temperature-resistant heating wire can be isolated by the insulating high-. The mode of adopting at the special heat-resisting pipe internally mounted high temperature resistant heating wire of pitch heats, and simple structure is reliable, improves heating efficiency, reduces the energy consumption, reduces pipeline diameter and weight, reduce cost.

The outside cover that is located the special heat-resistant pipe of pitch of rifle body front end is equipped with the one deck and supports the tubular metal resonator, and the setting of supporting the tubular metal resonator is convenient for stabilize and is located the special heat-resistant pipe of front side pitch and can stabilize straighten the use. Support fixed mounting has two sets of handles that the operation of being convenient for supported the tubular metal resonator on the tubular metal resonator, and the lower surface that is located the handle of rear side is provided with a set of switch, and the switch passes through electric wire electric connection to set up on the pitch pump switch interface of cross upside position, opens the switch through manual, and then the transport of the inside pitch of control pitch pump switch interface. The switch for controlling the switch interface of the asphalt pump is arranged in the switch on the supporting metal pipe, so that the spraying start and stop can be conveniently and remotely controlled.

As a further scheme of the invention: the length of the special heat-resistant pipe for asphalt is less than or equal to 15 meters of the heating wire joint, so that the spraying range is fully expanded.

As a further scheme of the invention: the high-temperature resistant electric heating wire is made of stainless steel, and has extremely strong oxidation resistance and long service life.

As a further scheme of the invention: the two ends of the high-temperature resistant electric heating wire are respectively and electrically connected to the heating wire connectors on the upper side and the lower side of the four-way joint, so that a circulation circuit is formed, and then the power supply is connected to the high-temperature resistant electric heating wire, so that the high-temperature resistant electric heating wire can be driven to heat.

As a further scheme of the invention: the thickness of the high-temperature-resistant electric heating wire can be freely adjusted according to the length and the inner diameter of the special heat-resistant pipe for the asphalt, so that the environment temperature is lower, and the good fluidity and the spraying temperature of the asphalt are ensured under the condition of longer spraying distance.

As a further scheme of the invention: an insulating washer is arranged between the four-way joint and the high-temperature resistant electric heating wire, and the high-temperature resistant electric heating wire is sleeved inside the insulating high-temperature resistant pipe and is completely insulated from asphalt and the gun body shell, so that the safety of a user is ensured.

As a further scheme of the invention: the tail end of the gun body is communicated with a group of tee joints, a group of interfaces used for adjusting the heating wires and another nozzle mounting opening used for mounting different nozzles are arranged on the tee joints, and spraying with multiple functions is achieved by arranging the interfaces and the mounting openings.

As a still further scheme of the invention: the tee joint is connected with the end of the gun body and the bottom end of the special asphalt heat-resistant pipe is connected with the tee joint through the threaded barrel, so that the tee joint and the gun body are convenient to mount and dismount.

Compared with the prior art, the invention has the beneficial effects that:

1. the mode of adopting at pitch pipeline internally mounted heater strip heats, and simple structure is reliable, improves heating efficiency, reduces the energy consumption, reduces pipeline diameter and weight, reduce cost, and is safe high-efficient.

2. The heating power is adjusted by changing the diameter of the heating wire, and the high thermal conductivity and the high utilization rate are matched, so that the good fluidity and the spraying temperature of the asphalt can be ensured under the conditions of low environmental temperature and long spraying distance.

3. Has good insulation treatment and provides safety guarantee.

4. The control switch of the pump is arranged on the handle and is controlled remotely.

5. The length of the pipeline can be adjusted, the longest length can reach 15 meters, and the spraying range is enlarged.

Drawings

Fig. 1 is a schematic diagram of a prior art structure existing in the background art.

Fig. 2 is a schematic diagram of the overall structure of the hot asphalt delivery spray heating gun.

Fig. 3 is a schematic view of the internal structure of a heat-resistant pipe dedicated to asphalt in the hot asphalt delivery and spray heating gun.

Wherein: the special asphalt heat-resistant pipe 10, an asphalt pump interface 11, a four-way joint 12, an electric wire 13, an asphalt pump switch interface 14, a heating wire joint 15, a switch 16, a handle 17, a supporting metal pipe 18, a three-way joint 19, an insulating high-temperature-resistant pipe 20, a high-temperature-resistant heating wire 21 and a gun body 22.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.