An asphalt pavement construction site auxiliary tool surface release agent automatic spraying device

By designing an automatic spraying device, which utilizes a lever mechanism and an air pump to achieve automated spraying and blowing, the problem of uneven application and splashing of release agent in asphalt pavement construction has been solved, improving construction efficiency and bonding effect.

CN115990553BActive Publication Date: 2026-04-21CHINA RAILWAY (HENAN) XINCHUAN EXPRESSWAY CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY (HENAN) XINCHUAN EXPRESSWAY CO LTD
Filing Date
2023-02-15
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing technologies, the application of release agent by auxiliary tools during asphalt pavement construction is uneven, which easily leads to dripping and splashing, resulting in pollution and reduced adhesion. Furthermore, the direct dipping method contaminates the release agent and reduces work efficiency.

Method used

An automatic spraying device for surface release agent of auxiliary tools on asphalt surface construction site was designed. It adopts a lever mechanism to trigger the limit switch, combined with release agent pump and air pump to realize automatic spraying and blowing, improve the uniformity of application and prevent splashing.

Benefits of technology

It improves the uniformity of the release agent application, avoids dripping and contamination, increases work efficiency, ensures the adhesion of asphalt pavement, and reduces the waste of release agent.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a bituminous pavement construction site auxiliary tool surface isolating agent automatic spraying device, relates to the isolating agent spraying technical field of bituminous pavement construction, and comprises a box body, an isolating agent storage tank, an isolating agent pump, an air pump, an isolating agent pipeline, an air pipeline, a battery, a rubber grid and a control mechanism. A lever mechanism is used to trigger a travel switch, the automatic degree of isolating agent smearing is improved, an automatic control isolating agent spraying device and an air drying device are used, the uniformity of isolating agent smearing is improved, and the problem that the original solution of the isolating agent is polluted due to direct dipping from a barrel is avoided.
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Description

Technical Field

[0001] This invention relates to the field of asphalt pavement construction release agent spraying technology, specifically to an automatic release agent spraying device for surface auxiliary tools in asphalt pavement construction. Background Technology

[0002] During asphalt paving, workers need to use shovels and other auxiliary tools to trim the asphalt mixture laid on the road surface. When using shovels and other auxiliary tools to remove the hot asphalt mixture, to prevent asphalt mixture from sticking to the tools and affecting work efficiency, workers will periodically apply a release agent to the tools. This is usually done by pouring the release agent into a bucket and then dipping the tools directly into the bucket, or by applying the release agent directly to the tools using a plastic bottle with a perforated cap. However, these methods can easily lead to uneven application of the release agent on the auxiliary tools. Excessive application force can also cause the tool to carry too much release agent, resulting in splashing. If the splashes fall onto the road base, they will contaminate the base during asphalt paving, leading to poor adhesion between the asphalt pavement and the base. If the splashes fall onto the asphalt mixture, they will wash away the asphalt film on the mixture, resulting in reduced adhesion between the mixtures. Insufficient application amount leads to poor anti-adhesion effect, increases the number of times workers need to apply the release agent, and reduces work efficiency. Direct dipping can also contaminate the release agent and reduce its release effect. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic release agent spraying device for auxiliary tools on asphalt surface construction sites. By triggering a limit switch through a lever mechanism, the automation level of release agent application is improved. The use of an automatic control release agent spraying device and an air-draining device increases the uniformity of release agent application, avoids release agent splashing, and avoids the problem of contaminating the release agent concentrate by directly dipping it from the bucket.

[0004] Implementation of the present invention:

[0005] An automatic surface release agent spraying device for asphalt pavement construction site auxiliary tools is characterized by comprising: a housing, a release agent storage tank, a release agent pump, an air pump, a release agent pipeline, an air pipeline, a battery, rubber gratings, and a control mechanism; the release agent storage tank is located at the lower part of the housing; the release agent pump is located at the upper end of the release agent storage tank; the air pump is located at the upper end of the release agent pump; the release agent pump and the air pump are protected by pump covers; the release agent pump outlet is connected to the release agent pipeline; the release agent pump inlet is connected to the inside of the release agent storage tank; the air pump outlet is connected to the air pipeline; the air pump inlet is connected to the outside of the housing; the battery is located at the upper end of the release agent storage tank; the battery is connected to both the release agent pump and the air pump; several rubber gratings are located on the upper part of the housing; and the control mechanism is located on top of the rubber gratings.

[0006] Furthermore, the control mechanism includes a swing plate, a baffle, a fixed plate, a release agent pump switch, an air pump switch, a cover plate, and a stabilizing spring; the swing plate and the baffle are the same width, and one end of the baffle is fixedly connected to the swing plate; the other end of the baffle is hinged to the inside of the fixed plate; the release agent pump switch is located inside the fixed plate, below the baffle; the air pump switch is located at the lower end of the cover plate; the cover plate is located at the upper end of the fixed plate and above the baffle; the fixed plate is fixed to the top of one side of the rubber grid; a first stabilizing spring is provided between the fixed plate and the baffle; the first stabilizing spring is fixedly connected to the fixed plate; a second stabilizing spring is provided between the cover plate and the baffle; the second stabilizing spring is fixedly connected to the cover plate.

[0007] Furthermore, the swing plate and the baffle are located on one of the rubber grids; the fixing plate has several rubber plates corresponding to the rubber grids on one side of the swing plate; the rubber plates are made of rubber; the fixing plate is fixedly connected to the rubber plates.

[0008] Furthermore, the battery is connected to the separator pump switch and the air pump switch via a battery switch; the separator pump switch is connected to the separator pump; and the air pump switch is connected to the air pump.

[0009] Furthermore, the upper part of the release agent storage tank is provided with a release agent loading port; the lower part of the release agent storage tank is provided with a release agent unloading hole.

[0010] Furthermore, the release agent conduit is located below the air conduit.

[0011] Furthermore, the end of the release agent pipeline that is not connected to the release agent pump is sealed.

[0012] Furthermore, the end of the air duct not connected to the air pump is sealed.

[0013] Furthermore, the release agent pipeline is equipped with a release agent nozzle; the release agent nozzle is inside the rubber grid.

[0014] Furthermore, the air duct is equipped with an air nozzle; the air nozzle is located inside the rubber grille.

[0015] The beneficial effects of this invention are:

[0016] The uniformity of the release agent application is improved, preventing waste caused by excessive application and splashing. It also prevents the impact of splashed release agent on the bonding effect between the road base and the asphalt mixture, and prevents poor release effect due to insufficient application. The degree of automation is high, requiring no manual operation. Control can be completed simply by touching the rubber plate in the control area with a tool. The release agent concentrate and the used release agent are stored separately, avoiding the problem of poor release agent effect due to contamination. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure described in Example 1;

[0018] Figure 2 This is a partial sectional view as described in Example 1;

[0019] Figure 3 This is a schematic diagram of the control structure described in Example 1;

[0020] Figure 4 This is a sectional view of AA.

[0021] Figure 5 This is a magnified schematic diagram of a portion of the control structure.

[0022] Figure 6 This is a schematic diagram of the baffle structure described in Example 1;

[0023] In the diagram, 1 is the housing, 2 is the release agent storage tank, 21 is the release agent loading port, 22 is the release agent unloading port, 3 is the release agent pump, 4 is the air pump, 5 is the release agent pipeline, 51 is the release agent nozzle, 6 is the air pipeline, 61 is the air nozzle, 7 is the battery, 71 is the battery switch, 8 is the rubber grid, 9 is the control mechanism, 91 is the swing plate, 92 is the baffle, 93 is the fixing plate, 94 is the release agent pump switch, 95 is the air pump switch, 96 is the cover plate, 97 is the first stabilizing spring, 98 is the second stabilizing spring, 99 is the rubber plate, and 10 is the pump protective cover. Detailed Implementation

[0024] The present invention will be further described below through specific embodiments.

[0025] Example 1

[0026] This embodiment provides an automatic surface release agent spraying device for auxiliary tools in asphalt pavement construction, including a box body 1, a release agent storage box 2, a release agent pump 3, an air pump 4, a release agent pipeline 5, an air pipeline 6, a battery 7, a rubber grid 8, and a control mechanism 9. The release agent storage box 2 is located at the lower part of the box body 1. The release agent pump 3 is located at the upper end of the release agent storage box 2. The air pump 4 is located at the upper end of the release agent pump 3. Pump protective covers 10 are provided outside the release agent pump 3 and the air pump 4. The outlet of the release agent pump 3 is connected to the release agent pipeline 5. The inlet of the release agent pump 3 is connected to the inside of the release agent storage box 2. The outlet of the air pump 4 is connected to the air pipeline 6. The inlet of the air pump 4 is connected to the outside of the box body 1. The battery 7 is located at the upper end of the release agent storage box 2. The battery 7 is connected to the release agent pump 3 and the air pump 4 respectively. Two rows of rubber grids 8 are provided at the upper part of the box body 1. Fixing plates 93 are provided on both sides of the top of the rubber grids 8, and the control mechanism 9 is located in the middle of the top right side.

[0027] Preferably, the control mechanism 9 includes a swing plate 91, a baffle 92, a release agent pump switch 94, an air pump switch 95, a cover plate 96, and a stabilizing spring 97; the swing plate 91 and the baffle 92 are the same width and one end of the baffle 92 is fixedly connected to the swing plate 91; the other end of the baffle 92 is hinged to the inside of the fixed plate 93 by a pin; the release agent pump switch 94 is located inside the fixed plate 93, below the baffle 92; the air pump switch 95 is located at the lower end of the cover plate 96; the cover plate 96 is located at the upper end of the fixed plate 93 and above the baffle 92; the fixed plate 93 is fixed to the top of one side of the rubber grid 8; a first stabilizing spring 97 is provided between the fixed plate 93 and the baffle 92; the first stabilizing spring 97 is fixedly connected to the fixed plate 93; a second stabilizing spring 98 is provided between the cover plate 96 and the baffle 92; the second stabilizing spring (98) is fixedly connected to the cover plate (96).

[0028] Preferably, the swing plate 91 and the baffle 92 are located on one of the rubber grids 8; the fixing plate 93 has a plurality of rubber plates 99 corresponding to the rubber grids 8 on one side of the swing plate 91; the rubber plates 99 are made of rubber; the fixing plate 93 is fixedly connected to the rubber plates 99.

[0029] Preferably, battery 7 is connected to separator pump switch 94 and air pump switch 95 via battery switch 71; separator pump switch 94 is connected to separator pump 3; and air pump switch 95 is connected to air pump 4.

[0030] Preferably, the release agent storage tank 2 is provided with a release agent loading port 21 at the top and a release agent unloading hole 22 at the bottom.

[0031] Preferably, the release agent pipe 5 is located below the air pipe 6.

[0032] Preferably, the end of the release agent pipeline 5 that is not connected to the release agent pump 3 is closed.

[0033] Preferably, the end of the air duct 6 that is not connected to the air pump 4 is closed.

[0034] Preferably, the release agent pipe 5 is provided with a release agent nozzle 51; the release agent nozzle 51 is inside the rubber grid 8.

[0035] Preferably, the air duct 6 is provided with an air nozzle 61; the air nozzle 61 is inside the rubber grille 8.

[0036] Working principle of the invention: Taking Example 1 as an example, during the asphalt pavement construction process, when workers need to apply a release agent to auxiliary tools such as shovels,

[0037] (1) Turn on the battery switch 71, and then put the shovel in from directly above the rubber grid 8. As the shovel enters the rubber grid 8, the rubber plate 99 bends and enters the rubber grid 8 as the shovel moves down, and at the same time, the shovel enters the spray range of the release agent nozzle 51 and the air nozzle 61.

[0038] (2) When the shovel is placed into the rubber grid 8 from directly above the control mechanism 9, the swing plate 91 and the baffle 92 move down with the shovel. The baffle 92 rotates downward about the fixed plate 93 as the axis and then touches the release agent pump switch 94.

[0039] (3) The release agent pump 3 works to draw the release agent from the release agent storage tank 2 and deliver it through the release agent pipeline 5 to the release agent nozzle 51 for spraying onto the shovel;

[0040] (4) When the shovel is lifted and moved out of the rubber grid 8, the swing plate 91 and the baffle 92 rotate upward with the shovel under the action of the first stabilizing spring 97. The swing plate 91 first returns to the horizontal due to friction, and then swings upward.

[0041] (5) The swing plate 91 drives the baffle 92 to return to the horizontal position first, and then swings upward;

[0042] (6) Under the action of the swing plate 91, the baffle 92 first moves away from the isolator pump switch 94, at which point the isolator pump 3 stops working, and then the baffle 92 triggers the air pump switch 95.

[0043] (7) The air pump 4 starts working and delivers air through the air pipe to the air nozzle 61. The air is then sprayed out from the air nozzle 61 to blow away the iron shovel that has been sprayed with the release agent, thus removing the excess release agent and achieving the purpose of preventing splashing.

[0044] (8) The blown-off release agent falls into the bottom of box 1 to avoid affecting the bonding effect between the road base and the asphalt mixture;

[0045] (9) When the shovel is pulled out, the control mechanism 9 is reset under the action of the second stabilizing spring 98, and the air pump 4 stops working. After this process, the task of spraying and drying the release agent on the shovel and other auxiliary tools is finally completed.

[0046] The isolator pump 3 described in Example 1 is a miniature electric diaphragm pump with model number 0142HB-12-60; the air pump 4 is a miniature vacuum pump with model number ZR370-02PM.

[0047] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. An asphalt paving job site aid surface sealer automatic spray applicator apparatus characterized by: It includes a housing (1), a release agent storage tank (2), a release agent pump (3), an air pump (4), a release agent pipeline (5), an air pipeline (6), a battery (7), a rubber grid (8), a control mechanism (9), and a fixing plate (93). The lower part of the box (1) is provided with a release agent storage box (2); The release agent storage tank (2) is equipped with a release agent pump (3) at the top. An air pump (4) is provided at the upper end of the isolation agent pump (3); The outlet of the release agent pump (3) is connected to the release agent pipeline (5); The inlet of the release agent pump (3) is connected to the inside of the release agent storage tank (2); The air pump (4) outlet is connected to the air pipe (6); The air pump (4) inlet is connected to the outside of the housing (1); The upper end of the release agent storage box (2) is equipped with a battery (7); The battery (7) is connected to the separator pump (3) and the air pump (4) respectively; The upper part of the box (1) is provided with several rubber grids (8); The rubber grid (8) is provided with a fixing plate (93) on top; The fixed plate (93) is provided with a control mechanism (9); The control mechanism (9) includes a swing plate (91), a baffle (92), a release agent pump switch (94), an air pump switch (95), a cover plate (96), and a stabilizing spring (97). One end of the baffle (92) is fixedly connected to the swing plate (91); The other end of the baffle (92) is hinged to the inside of the fixed plate (93); The isolator pump switch (94) is located inside the fixed plate (93), below the baffle (92); The air pump switch (95) is located at the lower end of the cover plate (96); The cover plate (96) is disposed on the upper end of the fixed plate (93) and is located above the baffle (92); The fixing plate (93) is fixed to the top of one side of the rubber grid (8); A first stabilizing spring (97) is provided between the fixing plate (93) and the baffle (92); The first stabilizing spring (97) is fixedly connected to the fixing plate (93); A second stabilizing spring (98) is provided between the cover plate (96) and the baffle plate (92); The second stabilizing spring (98) is fixedly connected to the cover plate (96); The swing plate (91) and the baffle (92) are the same width; The swing plate (91) and the baffle (92) are located on one of the rubber grids (8); The fixed plate (93) has several rubber plates (99) corresponding to the rubber grid (8) on one side of the swing plate (91). The rubber sheet (99) is made of rubber; The fixing plate (93) is fixedly connected to the rubber plate (99).

2. The device of claim 1, wherein the device is characterized by: The end of the release agent pipeline (5) that is not connected to the release agent pump (3) is closed.

3. The device of claim 1, wherein: The end of the air duct (6) that is not connected to the air pump (4) is closed.

4. The device of claim 1, wherein: The release agent pipeline (5) is equipped with a release agent nozzle (51); The release agent nozzle (51) is inside the rubber grid (8).

5. The device of claim 1, wherein: An air nozzle (61) is provided on the air duct (6). The air nozzle (61) is inside the rubber grid (8).

6. The device of claim 1, wherein: The battery (7) is connected to the separator pump switch (94) and the air pump switch (95) respectively via the battery switch (71); The release agent pump switch (94) is connected to the release agent pump (3); The air pump switch (95) is connected to the air pump (4).

7. The device of claim 1, wherein: The upper part of the release agent storage tank (2) is provided with a release agent loading port (21); The release agent storage tank (2) is provided with a release agent discharge hole (22) at the bottom.

8. The device of claim 1, wherein: The release agent pipe (5) is located below the air pipe (6).

9. The device of claim 1, wherein: The release agent pump (3) and air pump (4) are provided with pump protective covers (10).

Citation Information

Patent Citations

  • Paint spraying device of bag cage framework

    CN105457781A

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    CN217313985U