Crack pouring device for pavement maintenance

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By designing a seam filling gun equipped with scraper and pressure spring, the problem of excessive output of sealant by the existing seam filling machine is solved, and the sealant is uniformly filled, which improves road flatness and construction efficiency.

CN222455780UActive Publication Date: 2025-02-11SHANDONG HI SPEED COMPANY

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Patent Information

Application Number: CN202421184945.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-28
Publication Date: 2025-02-11
Estimated Expiration: 2034-05-28

AI Technical Summary

Technical Problem

When filling sealant, existing seam filling machines rely on manual judgment, excessive sealant output can easily lead to excessive output and affect road flatness.

Method used

A seam filling device for pavement maintenance is designed, including a seam filling gun and a seam filling machine. The seam filling gun is connected to the seam filling machine through a conduit. The seam filling gun is equipped with scraper and pressure spring, and the scraper is fitted with the road surface and pressure. The spring pushes the scraper to make the sealant fill evenly.

Benefits of technology

By automatically adjusting the contact between the scraper and the road surface, we ensure that the sealant is filled evenly, which improves the flatness of the road, reduces the waste of sealant and reduces construction costs.

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Abstract

The utility model discloses a crack pouring device for road maintenance, which relates to the technical field of road maintenance and comprises a crack pouring machine and a crack pouring gun connected with the crack pouring machine through a guide pipe. The handle is installed on the material conveying pipe, one end of the material conveying pipe is connected with the guide pipe, the nozzle is installed at the end, away from the guide pipe, of the material conveying pipe, and the positioning ring is installed at the end, close to the nozzle, of the material conveying pipe; an opening is formed in the side, away from the advancing direction, of the positioning ring, the mounting box is mounted on the side, away from the opening, of the positioning ring, a movable groove is formed in the bottom of the mounting box, the scraper is slidably mounted in the movable groove, limiting protrusions are arranged on the two sides of the scraper, and the two ends of the pressure spring elastically abut against the limiting protrusions and the bottom of the movable groove respectively. The problems that in existing pavement crack pouring construction, in order to ensure that pavement cracks are fully filled, more sealant is output, the sealant is finally higher than a pavement, and the road flatness is affected are solved.

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Description

Technical Field

[0001] The utility model belongs to the technical field of road maintenance, and particularly relates to a seam filling device for road surface maintenance. Background Art

[0002] Pavement cracks are a common disease of asphalt pavements. In the early stage, pavement cracks have no obvious effect on the performance of the road. However, as rainwater enters the cracks and a large number of vehicles load, the cracks inside will gradually become more serious, and may even cause major problems such as road subsidence. Therefore, existing pavement maintenance units will fill the cracks on sections of roads with pavement cracks. First, the pavement cracks are cleaned, and then the sealant is heated to a molten state and filled into the cracks, and finally it is cooled and solidified.

[0003] However, when existing caulking machines are caulking, the output of sealant is generally judged and controlled by staff. In order to ensure that the cracks in the road surface are fully filled, more sealant will be output. This will cause the sealant to be higher than the road surface and affect the smoothness of the road.

[0004] Therefore, a crack caulking device for road maintenance is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a caulking device for road maintenance, so as to solve the problem that in the existing road crack caulking construction, the output amount of sealant is generally judged and controlled by the staff. In order to ensure that the road cracks are fully filled, more sealant will be output, which will cause the sealant to be higher than the road surface and affect the road flatness. The specific technical solution is as follows:

[0006] A caulking device for road maintenance, comprising a caulking machine and a caulking gun, wherein the caulking gun is connected to the caulking machine through a conduit, and the caulking machine is used to melt and output sealant;

[0007] The caulking gun includes a feed pipe, a handle, a positioning ring, a nozzle, a pressure spring, a scraper and a mounting box. The feed pipe is provided with a handle for convenient control. One end of the feed pipe is connected to a guide tube. The nozzle is installed at an end of the feed pipe away from the guide tube. The positioning ring is installed at an end of the feed pipe close to the nozzle. The nozzle is located in the positioning ring. The contact surface between the positioning ring and the road is the working surface.

[0008] The positioning ring is provided with an opening on the side away from the forward direction, the installation box is installed on the side of the positioning ring opening, a movable groove is provided at the bottom of the installation box, the scraper is slidably installed in the movable groove, and limiting protrusions are provided on both sides of the scraper to prevent the scraper from leaving the movable groove, and the two ends of the pressure spring are elastically supported by the limiting protrusion and the bottom of the movable groove respectively.

[0009] Preferably, it further comprises a pressing plate, which is installed on a side of the scraper away from the positioning ring, the bottom of the pressing plate is flush with the bottom of the scraper, and the pressing plate and the scraper are perpendicular to each other.

[0010] Preferably, the maximum elastic force of the pressure spring is less than the weight of the caulking gun.

[0011] Preferably, one end of the feed pipe away from the guide tube is rotatably connected to one end of a connecting piece, and the other end of the connecting piece is fixedly connected to the other end of the positioning ring.

[0012] Preferably, a positioning plate is installed on the connecting plate, a positioning hole is opened on the positioning plate, the axis of the positioning hole is perpendicular to the working surface, a flexible material guide pipe is installed between the nozzle and the material delivery pipe, the nozzle is installed in the positioning hole, and the nozzle is oriented perpendicular to the working surface.

[0013] Preferably, a blower is installed on the caulking machine, and a jet pipe is installed on the side of the positioning ring away from the mounting box, the other end of the jet pipe is connected to the blower, the angle between the air outlet of the jet pipe and the side wall of the positioning ring is an acute angle, and the air outlet of the jet pipe faces the working surface.

[0014] Preferably, the air outlet of the air jet pipe is in a flat trumpet shape, and the long side of the air outlet is parallel to the working surface.

[0015] Preferably, a heating pipe is mounted on the feed conveying pipe, and the heating pipe utilizes the residual heat emitted from the feed conveying pipe to heat the inside of the heating pipe, and the jet pipe passes through the heating pipe.

[0016] Compared with the existing technology, the utility model has the following beneficial effects:

[0017] 1. The utility model pushes the scraper through the pressure spring, so that the scraper always fits with the road surface, and trims the molten sealant to be flush with the ground. Compared with the current manual visual filling of sealant to be flush with the road surface, the flatness of the road surface is further guaranteed. The excess sealant will be framed by the positioning ring, so it can only flow to the unfilled area of the road crack, which improves the utilization rate of the sealant and reduces the cost.

[0018] 2. Since it takes a while for the sealant to solidify from a molten state, the excess sealant will not only flow to the unfilled fixed area of the road crack, but may also flow to the filled area due to extrusion, squeezing the scraped sealant to deformation. The utility model installs a pressure plate on the scraper, and the bottom of the pressure plate is flush with the bottom of the scraper, which is used to cover the area where the road crack has been filled, increase the pressure of the sealant flowing to the fixed area where the road crack has been filled, and ensure the flatness of the road crack after maintenance.

[0019] 3. The utility model rotatably connects the feed pipe with the positioning ring and ensures that the nozzle is always perpendicular to the working surface through the positioning plate, so that the grouting gun can adjust the inclination angle between the feed pipe and the ground to adapt to workers of different heights, thereby improving the practicality of the grouting device for road maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following will briefly introduce the drawings required for the description of the embodiment. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is another side schematic diagram of the utility model.

[0023] Figure 3 It is a schematic diagram of the internal structure of the installation box of the utility model.

[0024] Description of main reference numerals:

[0025] 1. Caulking gun; 2. Feed pipe; 3. Positioning ring; 4. Nozzle; 5. Pressure spring; 6. Scraper; 7. Mounting box; 8. Movable groove; 9. Pressing plate; 10. Connecting piece; 11. Positioning plate; 12. Positioning hole; 13. Flexible feed pipe; 14. Air outlet; 15. Jet pipe; 16. Heating pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example, reference Figures 1 to 3 .

[0028] A caulking device for road maintenance comprises a caulking machine and a caulking gun 1. The caulking gun 1 is connected to the caulking machine through a conduit. The caulking machine is used to melt and output sealant.

[0029] The caulking gun 1 includes a feed pipe 2, a handle, a positioning ring 3, a nozzle 4, a pressure spring 5, a scraper 6 and an installation box 7. The feed pipe 2 is provided with a handle for convenient control to prevent the staff from being scalded. One end of the feed pipe 2 is connected to the conduit, and the nozzle 4 is installed at the end of the feed pipe 2 away from the conduit. The nozzle 4 is used to accurately introduce the sealant into the cracks in the road surface. The positioning ring 3 is installed at the end of the feed pipe 2 close to the nozzle 4, and the nozzle 4 is located in the positioning ring 3. The contact surface between the positioning ring 3 and the road is the working surface. During operation, the edges of the working surface of the positioning ring 3 will be located on both sides of the cracks in the road surface. The staff can observe the gaps in the road surface through the positioning ring 3 to avoid deviation in the operation of the caulking gun 1. The positioning ring 3 can also surround the caulking area to prevent the sealant from flowing to other places and causing waste.

[0030] The side of the positioning ring 3 away from the forward direction is provided with an opening, the installation box 7 is installed on the side of the opening of the positioning ring 3, the bottom of the installation box 7 is provided with a movable groove 8, the scraper 6 is slidably installed in the movable groove 8, and the two sides of the scraper 6 are provided with limiting protrusions to prevent the scraper 6 from leaving the movable groove 8, and the two ends of the pressure spring 5 are elastically supported by the limiting protrusions and the bottom of the movable groove 8 respectively. Through the thrust of the pressure spring 5, the scraper 6 is always kept in contact with the road surface to ensure the flatness of the road surface cracks after being filled. At the same time, when the scraper 6 is worn out, it can also move in the direction close to the road surface under the action of the pressure spring 5, and automatically adjust, which improves practicality. The maximum elastic force of the pressure spring 5 is less than the weight of the caulking gun 1, avoiding the need for the staff to give downward pressure to the caulking gun 1, which increases the workload of the staff. At the same time, the pressure spring 5 can neutralize part of the weight of the caulking gun 1 to reduce the difficulty of the staff in operating the caulking gun 1.

[0031] The pressing plate 9 is installed on the side of the scraper 6 away from the positioning ring 3. The bottom of the pressing plate 9 is flush with the bottom of the scraper 6, and the pressing plate 9 and the scraper 6 are perpendicular to each other. Since it takes some time for the sealant to solidify from the molten state, the excess sealant not only flows to the unfilled fixed area of the road cracks, but also may flow to the filled area due to extrusion, squeezing the scraped sealant to deformation. When the pressing plate 9 covers the area where the road cracks have been filled, the pressure of the sealant flowing to the filled fixed area of the road cracks is increased to avoid deformation and ensure the flatness of the road cracks after maintenance.

[0032] One end of the feed pipe 2 away from the conduit is rotatably connected to one end of the connecting piece 10, and the other end of the connecting piece 10 is fixedly connected to the other end of the positioning ring 3. A positioning plate 11 is installed on the connecting piece 10, and a positioning hole 12 is opened on the positioning plate 11. The axis of the positioning hole 12 is perpendicular to the working surface. A flexible material guide tube 13 is installed between the nozzle 4 and the feed pipe 2. The nozzle 4 is installed in the positioning hole 12, and the nozzle 4 is oriented perpendicular to the working surface. By rotatably connecting the feed pipe 2 with the positioning ring 3, and ensuring that the nozzle 4 is always perpendicular to the working surface through the positioning plate 11, the caulking gun 1 can adjust the inclination angle of the feed pipe 2 with the ground to adapt to workers of different heights, thereby improving the practicality of the caulking device for road maintenance.

[0033] A blower is installed on the caulking machine, and a jet pipe 15 is installed on the side of the positioning ring 3 away from the installation box 7. The other end of the jet pipe 15 is connected to the blower. The angle between the air outlet 14 of the jet pipe 15 and the side wall of the positioning ring 3 is an acute angle, and the air outlet 14 of the jet pipe 15 faces the working surface, which can blow debris to a position away from the positioning ring 3. Compared with the existing pavement caulking construction, which requires cleaning the pavement cracks with a hair dryer before caulking to ensure the drying box of the pavement cracks is clean, the utility model can reduce the steps of cleaning the pavement cracks in advance, improve work efficiency, and reduce labor intensity. The shape of the air outlet 14 of the jet pipe 15 is a flat trumpet shape, and the long side of the air outlet 14 is parallel to the working surface. The flat trumpet mouth can increase the cleaning area and ensure the cleaning of the positioning ring 3 in the forward direction.

[0034] The feed pipe 2 is provided with a heating pipe 16, which uses the residual heat emitted by the feed pipe 2 to heat the inside of the heating pipe 16, and the jet pipe 15 passes through the heating pipe 16. The present application uses the residual heat of the feed pipe 2 to heat the gas of the blower, thereby improving the utilization rate of heat and reducing the construction cost.

[0035] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A caulking device for road maintenance, comprising a caulking machine and a caulking gun (1), wherein the caulking gun (1) is connected to the caulking machine via a conduit, and the caulking machine is used to melt and output a sealant; It is characterized in that The caulking gun (1) comprises a feed pipe (2), a handle, a positioning ring (3), a nozzle (4), a pressure spring (5), a scraper (6) and a mounting box (7), wherein the feed pipe (2) is provided with a handle for convenient control, one end of the feed pipe (2) is connected to a guide tube, the nozzle (4) is mounted on an end of the feed pipe (2) away from the guide tube, the positioning ring (3) is mounted on an end of the feed pipe (2) close to the nozzle (4), the nozzle (4) is located in the positioning ring (3), and the contact surface of the positioning ring (3) with the road is a working surface; The positioning ring (3) is provided with an opening on a side away from the forward direction, the installation box (7) is installed on the side of the opening of the positioning ring (3), a movable groove (8) is provided at the bottom of the installation box (7), the scraper (6) is slidably installed in the movable groove (8), and limiting protrusions are provided on both sides of the scraper (6) to prevent the scraper (6) from leaving the movable groove (8), and the two ends of the pressure spring (5) are elastically supported by the limiting protrusion and the bottom of the movable groove (8) respectively.

2. A crack filling device for road maintenance according to claim 1, characterized in that: It also comprises a pressing plate (9), which is mounted on a side of the scraper (6) away from the positioning ring (3), the bottom of the pressing plate (9) is flush with the bottom of the scraper (6), and the pressing plate (9) and the scraper (6) are perpendicular to each other.

3. A crack filling device for road maintenance according to claim 2, characterized in that: The maximum elastic force of the pressure spring (5) is less than the weight of the caulking gun (1).

4. A crack filling device for road maintenance according to claim 1, characterized in that: One end of the feed pipe (2) away from the guide tube is rotatably connected to one end of a connecting piece (10), and the other end of the connecting piece (10) is fixedly connected to the other end of the positioning ring (3).

5. A crack filling device for road maintenance according to claim 4, characterized in that: A positioning plate (11) is installed on the connecting plate (10), a positioning hole (12) is opened on the positioning plate (11), the axis of the positioning hole (12) is perpendicular to the working surface, a flexible material guide tube (13) is installed between the nozzle (4) and the material delivery pipe (2), the nozzle (4) is installed in the positioning hole (12), and the nozzle (4) is oriented perpendicular to the working surface.

6. A crack filling device for road maintenance according to claim 1, characterized in that: A blower is installed on the seam filling machine, and an air jet pipe (15) is installed on the side of the positioning ring (3) away from the installation box (7), and the other end of the air jet pipe (15) is connected to the blower. The angle between the air outlet (14) of the air jet pipe (15) and the side wall of the positioning ring (3) is an acute angle, and the air outlet (14) of the air jet pipe (15) faces the working surface.

7. A crack filling device for road maintenance according to claim 6, characterized in that: The air outlet (14) of the air jet pipe (15) is in the shape of a flat trumpet, and the long side of the air outlet (14) is parallel to the working surface.

8. A crack filling device for road maintenance according to claim 6, characterized in that: The feed pipe (2) is sleeved with a heating pipe (16), and the heating pipe (16) utilizes the residual heat emitted by the feed pipe (2) to heat the inside of the heating pipe (16), and the injection pipe (15) passes through the heating pipe (16).