Concrete mixing equipment for repairing airfield pavement

By integrating water temperature control and mixing functions into a mobile concrete mixing plant, the problem of inconvenient operation in existing technologies has been solved, enabling convenient operation and effective mixing of airport pavement repair materials, preventing premature solidification of materials, and improving construction efficiency.

CN224044142UActive Publication Date: 2026-03-27首都机场集团有限公司北京大兴国际机场 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing technologies for airport pavement repair are inconvenient to operate, time-consuming and labor-intensive, and the repair materials are prone to premature solidification during transportation, affecting the effectiveness of the repair.

Method used

A portable concrete mixing plant was designed, comprising a water tank, a concrete tank, and a mixing device. It integrates water temperature control, quantitative water addition, and mixing functions. The plant maintains temperature and mixing during transportation through a water pump and a mixing pump, and is equipped with an insulation box mechanism to prevent the material from solidifying.

Benefits of technology

It enables temperature control and continuous stirring of the repair material during movement, preventing premature solidification, simplifying operation, improving construction efficiency and effectiveness, and enhancing the convenience of the equipment and the repair effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224044142U_ABST
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Abstract

The utility model relates to concrete mixing equipment for repairing airport pavements, which structurally comprises a water tank and a concrete tank which are mounted on a trolley, a water adding port is arranged at the top of the water tank, a temperature sensor is mounted on the water tank, a water suction pump and a heating rod are arranged at the bottom in the water tank, and an outlet of the water suction pump is connected with a top outlet of the water tank through a pipeline. A support is arranged on the portion, on the outer side of the concrete box, of the trolley, a stirring pump is installed on the top of the support, and the output end of the stirring pump is connected with stirring blades in the concrete box. The moving device has the advantages that the moving device can be conveniently moved to an area needing to be repaired, the temperature of water added to a repairing material can be controlled in the moving process, continuous water adding and continuous stirring are guaranteed, the material can be effectively prevented from being solidified in advance in the process of transferring the mixed material, operation can be effectively simplified, and the repairing effect can be effectively improved. A preferable heat preservation box mechanism is further arranged, special working conditions such as low temperature can be coped with, and the using effect is further improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a concrete mixing equipment, concretely relates to a movable concrete mixing equipment for airport pavement repair. BACKGROUND

[0002] Airport pavement is caused by factors such as load stress, temperature change, material aging, construction process defects, improper maintenance, etc. Concave damage, crack damage, chunk damage, water stable damage and groove damage, etc. need to be repaired by pouring repair materials such as concrete. In the repair operation, the water temperature control, quantitative water adding and stirring operations of the repair materials need to be performed.

[0003] In the prior art, the general operation mode is to uniformly stir the concrete material by a handheld mixer at a fixed location, then load it into a heat preservation box, wrap it with heat preservation materials, and then transport it to the damage site for pouring into the damaged area for repair operation. In the mode of the prior art, the water adding process needs to be adjusted by a measuring cup before pouring into the stirring barrel, which has the problem of inconvenient operation, and is more troublesome to move, time-consuming and labor-consuming. At the same time, the repair materials may be prematurely solidified during the transportation process, affecting the use effect. UTILITY MODEL CONTENT

[0004] The utility model provides a concrete mixing equipment for airport pavement repair, which aims to overcome the above-mentioned deficiencies in the prior art, integrate water temperature control, quantitative water adding and stirring, facilitate movement, and improve the use effect.

[0005] The technical solution of the utility model is a concrete mixing equipment for airport pavement repair, which includes a water tank and a concrete tank mounted on a trolley. The water tank is provided with a water inlet at the top, and a temperature sensor is mounted on the water tank. An extraction pump and a heating rod are arranged at the bottom of the water tank. The outlet of the extraction pump is connected to the top outlet of the water tank through a pipeline. The top outlet of the water tank is connected to one end of a water adding pipe, and the other end of the water adding pipe is connected to the water inlet of the concrete tank. A support is arranged on the trolley outside the concrete tank, and a stirring pump is mounted on the top of the support. The output end of the stirring pump is connected to the stirring blades in the concrete tank. When the water tank is filled with water, the heating rod is working, the extraction pump is pumping water, and the stirring pump is stirring, the quantitative water adding and continuous stirring can be maintained to meet the temperature requirements during the transportation of the repair materials.

[0006] Preferably, a liquid level meter is arranged on the side of the water tank, and a drain hole with a ball valve is arranged at the bottom of the water tank.

[0007] Preferably, the utility model further comprises a heat preservation box mechanism placed on the concrete tank, which includes a rectangular shell. A heating fan is arranged in the shell, and a labyrinth air duct is arranged in the shell. Handles are arranged at both ends of the shell outside. Hot air is formed in the shell by the heating fan, which facilitates overall heat preservation.

[0008] Preferably, a plurality of air-permeable long holes are arranged along the top surface and the side surface of the shell. The phenomenon of deformation and protrusion of the repair material due to excessive temperature in the heat preservation box can be prevented.

[0009] The airport pavement repairing concrete mixing equipment has the advantages of reasonable structure, convenient movement to the area to be repaired, controllable water temperature of the repair material during movement, continuous water adding and stirring, effective prevention of early solidification of the material during the process of transferring and mixing the material, effective simplification of operation, improvement of repair effect, and optional heat preservation box mechanism for coping with special working conditions such as low temperature and further improvement of use effect. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a structural schematic view of the airport pavement repairing concrete mixing equipment.

[0011] Figure 2 is a left side perspective view of Figure 1 .

[0012] Figure 3 is a top view of Figure 1 .

[0013] Figure 4 is a partial perspective structural schematic view of the heat preservation box mechanism in the airport pavement repairing concrete mixing equipment.

[0014] Figure 5 is a top view of Figure 4 .

[0015] In the figure, 1 is a trolley, 2 is a water tank, 21 is a water adding port, 22 is a liquid level meter, 23 is a water discharge port, 24 is a water pump, 25 is a water adding pipe, 26 is a heating rod, 3 is a concrete box, 31 is a support, 32 is a stirring pump, 4 is an electric control box, 41 is an aviation plug, 5 is a heat preservation box mechanism, 51 is a shell, 52 is a handle, 53 is a hot air blower, and 54 is an air-permeable long hole. DETAILED DESCRIPTION

[0016] The utility model will be further explained in detail in combination with examples and specific implementation manners.

[0017] For example, Figures 1-3As shown, the airport pavement repairing concrete mixing equipment, its structure includes water tank 2 and concrete tank 3 installed on the trolley 1, wherein the water tank 2 top is provided with water inlet 21, the water tank 2 side is provided with liquid level gauge 22, the water tank 2 is provided with temperature sensor, the water tank 2 bottom is provided with water outlet 23 installed with ball valve, the water tank 2 inner bottom is provided with water pump 24 and heating rod 26, the water pump 24 outlet is connected with the water tank 2 top outlet through pipeline, the water tank 2 top outlet connects one end of water adding pipe 25, the other end of water adding pipe 25 connects the water inlet of concrete tank 3, the trolley 1 outside the concrete tank 3 is provided with support 31, the support 31 top is installed with stirring pump 32, the stirring pump 32 output end is connected with the stirring blade in the concrete tank 3, the support 31 is also installed with electric control box 4, the electric control box 4 top is provided with aviation plug 41.

[0018] According to the above structure, the water in the water tank 2 is heated, temperature control is adjusted, water is pumped and concrete is stirred.

[0019] In specific design, the trolley 1 includes chassis, handle and universal wheel, the chassis is welded by 5# angle aluminum, the installed support 31 is welded by angle aluminum and aluminum plate, the support 31 and handle are welded on the chassis, and the universal wheel is fixed below the chassis.

[0020] The water tank 2 is welded by aluminum alloy plate as a whole and is fixed between the trolley 1 by bolts. The water outlet 23 is controlled by ball valve. The water pump 24 preferably adopts low water level stainless steel pump which does not burn. The model QDN3-5-0.15, power 150W, lift 5m, voltage 220V, flow 3m³ / h, weight 6.5kg, caliber 25mm can be preferably adopted. The heating rod 26 adopts two 3KW pure titanium heating rods for aquaculture with anti-scald and anti-electricity leakage protection function. The liquid level gauge 22 is visual liquid level gauge, and every 5mm scale represents 1L water.

[0021] The stirring pump 32 preferably adopts BLD0 vertical stirring machine, and the fixed flange is provided with handle at both ends, the fixed flange is installed with stop plate below and quick clamp above, and the specific parameters are: power 1.1KW, transmission ratio 11, voltage 220V, rotating speed 136r / min.

[0022] The electric control box 4 preferably further includes temperature control switch and probe, button switch, AC contactor, air switch and the like.

[0023] In specific work, the operation process is: water is added to the water tank 2, the aviation plug 41 is powered on, the heating rod 26 works, the water pump 24 pumps water, and the stirring pump 32 stirs.

[0024] When the water tank 2 actually works, the water added should not exceed 80% of the total water level.

[0025] The aviation plug 41 is a female head, equipped with a 5m male plug power line, and is plugged with the aviation plug female head at the other end of the power car during operation.

[0026] The display of the temperature on the electric control box 4 should include the working start temperature (adjustable) of the heating rod, the actual monitoring temperature of the water temperature, and the working stop temperature (adjustable) of the heating rod. When the water temperature is lower than the set minimum temperature, the heating rod starts to work; when the water temperature is higher than the set maximum temperature of the heating rod, the heating rod stops working. The start temperature should be lower than the stop temperature.

[0027] During the water pumping process of the water pump 24, the water pumping switch is preferably a reset button switch. The required water volume is extracted according to the actual demand observation of the water tank liquid level meter or the observation of the water demand of the stirring barrel.

[0028] When the concrete box 3 is in use, the quick clamp is opened to lift the stirring pump 32 and put it into the box body. Stirring materials are added in the box body, and after water is added, the stirring button is pressed to start the stirring work.

[0029] As shown in Figure 4 , 5 , the preferred embodiment further includes a heat preservation box mechanism 5 placed on the concrete box 3. The following use scenarios are included: low temperature icing conditions; the optimal water temperature for repair materials is about 30 degrees; the repair materials are prone to icing after being poured into the missing blocks, affecting the repair progress; special repair is required for airport pavement repair.

[0030] Specifically, in cold seasons, if the existing technology of using a hair dryer to directly blow hot air to maintain the temperature of the repair materials, only the local heating is satisfied, and the heat loss is large, which cannot meet the heat preservation requirements of large area repair points.

[0031] The heat preservation box mechanism 5 includes a rectangular shell 51, two hot air blowers 53 are arranged at both ends of the shell 51, a labyrinth air duct is arranged inside the shell 51 and communicates with the air outlets of the two hot air blowers 53, handles 52 are arranged at both ends of the outer side of the shell 51, and a plurality of air permeable long holes 54 are arranged along the top surface and the side surface of the shell 51.

[0032] During operation, hot air is formed in the shell 51 by the hot air blowers 53, which facilitates overall heat preservation, and only needs to be powered on without the need for long-term hand holding.

[0033] In specific design, the shell 51 is welded from aluminum alloy plates, the outside is welded into a shell form, the inside is welded with lightening rib plates, and the outside is welded with along plates, which constitute a heat preservation shell as a whole. The air permeable long holes 54 are used to prevent the deformation and bulging of the repair materials due to excessive temperature in the heat preservation box. The hot air blowers 53 preferably adopt industrial PTC hot air blowers with high-temperature self-protection function. The number of hot air blowers 53 is determined according to the length of the shell 51. For example, one hot air blower 53 can be used for a 600x600mm shell, and two hot air blowers 53 can be used for a 1200x600mm shell.

[0034] In actual construction, the heat preservation box mechanism 5 with appropriate size can be selected according to the area of the repaired pavement, or multiple heat preservation box mechanisms 5 can be combined for use. The heat preservation box mechanism 5 is placed above the repairing material, the electric heating fan 53 is powered through the wiring board, and the wiring board can be powered through the power supply vehicle. The power supply is continuously supplied, the temperature is kept, and until the hardening degree of the repairing material reaches the specified requirement.

[0035] The above-mentioned components are all prior art, and a person skilled in the art can use any model and existing design that can realize the corresponding function.

[0036] The preferred embodiments of the present application are described above, and it should be pointed out that, for ordinary skilled in the art, without departing from the creative concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A concrete mixing apparatus for repairing an airport pavement, characterized by comprising: Including the water tank (2) and concrete tank (3) installed on the trolley (1), wherein the water tank (2) top is provided with a water inlet (21), the water tank (2) is provided with a temperature sensor, the water tank (2) is provided with a water pump (24) and a heating rod (26) at the bottom, the water pump (24) outlet is connected with the water tank (2) top outlet through a pipeline, the water tank (2) top outlet is connected with one end of the water pipe (25), the other end of the water pipe (25) is connected with the concrete tank (3) water inlet, the trolley (1) outside the concrete tank (3) is provided with a support (31), the support (31) top is installed with a stirring pump (32), the stirring pump (32) output end is connected with the concrete tank (3) inside stirring blade.

2. The airport pavement repairing concrete mixing apparatus according to claim 1, wherein The water tank (2) side is provided with a liquid level gauge (22), and the water tank (2) bottom is provided with a water drain (23) installed with a ball valve.

3. The airport pavement patching concrete mixing apparatus of claim 1, wherein, It also includes a heat preservation box mechanism (5) placed on the concrete tank (3), the heat preservation box mechanism (5) includes a rectangular shell (51), the shell (51) is provided with a hot air blower (53), the shell (51) is provided with a labyrinth air duct communicated with the hot air blower (53) air outlet, the shell (51) outside two ends are provided with handles (52).

4. The airport pavement repairing concrete mixing apparatus according to claim 3, wherein A plurality of air long holes (54) are arranged along the shell (51) top surface and side surface.