Anti-solidification device of concrete mixer truck
By installing an anti-condensation mechanism inside the mixer truck's mixing tank and using the tank's rotation to propel the concrete, the problem of concrete aggregate stratification and condensation is solved, achieving a more efficient mixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-03
AI Technical Summary
Existing concrete mixer trucks are prone to solidification when transporting concrete with low moisture content and high sand and gravel content due to insufficient mixing, which increases the risk, especially during long-distance transportation.
A concrete anti-caking mechanism is installed inside the mixing tank of the mixer truck, including a first pusher frame and a second pusher frame hinged in the tank body. The concrete material is pushed by the rotation of the tank body. Combined with the dovetail wing structure and elastic connection, the aggregate is fully mixed.
It effectively prevents concrete segregation and setting, increases safe transportation time, and improves the mixing effect of concrete aggregates.
Smart Images
Figure CN224074665U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of concrete mixer trucks, and in particular relates to a device for preventing solidification in concrete mixer trucks. Background Technology
[0002] A concrete mixer truck is a concrete transport device that mounts a concrete tank onto a mixer truck. Specifically, the concrete processing plant adds precast concrete into the concrete tank on the mixer truck, transports it to the construction site, and then dumps the concrete from the tank.
[0003] However, because concrete is prone to hardening and clumping, in severe cases, once the concrete in the tank has completely hardened, it is necessary to cut the tank open and use tools such as electric picks to break up the hardened concrete, which is extremely cumbersome.
[0004] Therefore, in order to prevent concrete from solidifying inside the tank during transportation by the mixer truck, the existing technology designs the concrete tank to be self-rotating, that is, the tank body, support rollers, gear transmission and other structures realize the self-rotation of the tank body. In order to improve the turning of concrete materials inside the tank, spiral blades are often installed inside the tank. The spiral blades inside the self-rotating tank push the material to avoid solidification.
[0005] However, during the concrete work of a building construction project of our company, it was found that when too much concrete was added to the tank, the concrete water content was too low, and there was too much sand and gravel in the concrete (most of which was used as aggregate), the rotating tank could not fully mix the large amount of concrete aggregate. As a result, the concrete, especially the aggregate concrete with a large amount of sand and gravel, was very easy to solidify because it was not fully mixed.
[0006] Furthermore, concrete with a high content of aggregates is more prone to segregation, thus accelerating the setting process. Therefore, there are strict requirements for the transportation time of low-moisture aggregate concrete; it must be delivered to the construction site and dumped within a specified time. However, due to traffic constraints, excessively long transportation times significantly increase the risk of aggregate concrete setting.
[0007] Therefore, by improving the tank structure and utilizing the tank's rotation characteristics to increase the mixing effect of materials inside the tank, especially aggregate concrete with a large amount of sand and gravel, the risk of concrete segregation and setting will be greatly reduced, thereby increasing the safe transportation time. Utility Model Content
[0008] Based on the above background, the purpose of this utility model is to provide a device for preventing solidification in concrete mixer trucks.
[0009] To achieve the above objectives, the present invention adopts the following technical solution:
[0010] A concrete mixer truck anti-solidification device includes a mixer truck and a rotatable mixing tank on the mixer truck, and also includes a concrete anti-solidification mechanism installed inside the mixing tank.
[0011] The concrete anti-caking mechanism includes a first push frame and a second push frame hinged to the top and bottom of the tank; the first push frame and the second push frame open and close as the tank rotates to push the concrete material to prevent the material from stratifying and solidifying.
[0012] Several connecting springs connect the first push frame and the second push frame;
[0013] Several dovetail wing structures are fixedly installed inside the first and second push frames. The dovetail wing structures are used to disperse concrete materials and prevent them from solidifying and clumping.
[0014] Preferably, both the first push frame and the second push frame are hinged to the inner wall of the mixing tank via a hinge bracket.
[0015] Preferably, the hinged bracket includes a fixed bracket fixedly installed on the first push frame and the second push frame, and the fixed bracket is hinged to a suspended mounting bracket by a pin, and the suspended mounting bracket is fixedly installed on the mixing tank.
[0016] Preferably, the connecting spring is arranged on both sides of the first push frame and the second push frame facing each other towards the side wall;
[0017] The two ends of the connecting spring are welded to the first push frame and the second push frame, respectively.
[0018] Preferably, the dovetail wing structure includes a tail wing mounting rod that is fixedly installed, and a plurality of tail wing structures are fixedly connected to the tail wing mounting rod, with the tail wing structures arranged along the length direction of the tail wing mounting rod.
[0019] Preferably, the tail fin structure includes a plurality of circumferentially distributed tail fin plates, the tail fin plates being triangular in shape;
[0020] The tip of the tail fin is positioned outwards.
[0021] Preferably, the tail fin is inclined.
[0022] Preferably, a sensor structure is installed inside the mixing tank.
[0023] Preferably, the sensor structure includes a humidity sensor and a temperature sensor.
[0024] This utility model has the following beneficial effects:
[0025] 1. The first and second pusher frames are positioned at the center of the tank. As the tank rotates, the first and second pusher frames rotate with it. For example, when the first pusher frame moves from the bottom to the top of the tank, it flips towards the center of the tank under the influence of gravity, thus pushing the concrete aggregate. Conversely, when it moves from the top to the bottom of the tank, it flips towards the side wall of the tank.
[0026] The second pusher frame moves in the same way. Therefore, by utilizing the rotational motion of the tank, the first and second pusher frames, connected by the hinge, cleverly push and mix the concrete inside the tank. This method increases the movement of the concrete, preventing insufficient mixing when there is a large amount of concrete.
[0027] This method enables the pushing of large quantities of concrete, and the pushing process promotes mixing between concrete aggregates.
[0028] 2. During the concrete transport process, the mixer truck continuously rotates the tank. Therefore, the first and second push frames move in an opening-closing-opening motion within the tank, which fully mixes the concrete aggregates in the tank and solves the technical defects of aggregate stratification and setting.
[0029] 3. By using connecting springs, the first and second push frames are kept in an elastic tension state. This elastic tension prevents excessive amplitude during opening and closing, thus avoiding impact on the inner wall of the tank. Furthermore, the elasticity of the springs assists the opening and closing movements of the first and second push frames, thereby enhancing the mixing effect on the concrete aggregate.
[0030] 4. During operation, as the first and second push frames rotate and push the material, the tail fins, with their spikes facing outwards, enhance the mixing and pushing effect of the aggregate, while simultaneously breaking up any clumps of material within the aggregate. Furthermore, due to the specific density of the tail fins, the effective volume of material broken up is small. The inclined design, combined with the inclined arrangement of the tank body, further improves the material breaking effect during rotation. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.
[0032] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;
[0033] Figure 2 This is a schematic diagram of the structure of the concrete anti-condensation mechanism installed inside the mixing tank in an embodiment of this utility model;
[0034] Figure 3 This is a schematic diagram of the concrete anti-condensation mechanism in an embodiment of this utility model;
[0035] Figure 4 This is a schematic diagram of the tail fin plate in an embodiment of the present invention;
[0036] Figure 5 This is an embodiment of the present utility model. Figure 3 The top view in the image.
[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0038] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0040] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0041] Example 1
[0042] like Figure 1-5As shown, a concrete mixer truck anti-solidification device includes a mixer truck 1 and a rotatable mixing tank 2 on the mixer truck 1. The structure of the mixer truck 1 and the rotatable mixing tank 2 on the mixer truck 1 is the same as that of existing concrete mixer trucks 1 and mixing tank 2 on the mixer truck 1. Similar to the existing mixing tank 2 on the mixer truck 1, the mixing tank 2 is rotatable, specifically through gear transmission between the mixer truck 1 and the mixing tank 2.
[0043] Those skilled in the art can learn about the specific structure of the mixer truck 1 and the mixing tank 2 in this utility model, as well as the specific structure of the rotation of the mixing tank 2, by consulting technical manuals and dictionaries.
[0044] To address the technical shortcomings of existing mixing tanks 2 in transporting aggregate concrete (high sand and gravel content, low water content), especially when the amount of concrete aggregate is large, and to prevent severe aggregate stratification and setting due to insufficient mixing of aggregates during the rotation of the mixing tank 2, this utility model makes the following improvements:
[0045] The anti-solidification device also includes a concrete anti-solidification mechanism 3 installed inside the mixing tank 2.
[0046] Specifically, the concrete anti-condensation mechanism 3 includes a first push frame 31 and a second push frame 32 hinged to the top and bottom of the tank; the first push frame 31 and the second push frame 32 open and close as the tank rotates to push the concrete material to prevent the material from stratifying and condensing.
[0047] Specifically, the first pusher frame 31 and the second pusher frame 32 are located at the center of the tank (the position that holds the most material). As the tank rotates, the first pusher frame 31 and the second pusher frame 32 (using thickened steel frames) rotate with it. For example, when the first pusher frame 31 moves from the bottom of the tank to the top, it flips towards the center of the tank under the influence of gravity, thus pushing the concrete aggregate. Conversely, when it moves from the top to the bottom of the tank, it flips towards the side wall of the tank.
[0048] The second pusher frame 32 moves in the same way. Therefore, by utilizing the rotational motion of the tank, the first pusher frame 31 and the second pusher frame 32, which are hinged as described above, cleverly push and mix the concrete inside the tank. This method increases the movement of the concrete, avoiding the situation where a large amount of concrete cannot be fully mixed.
[0049] Secondly, this method enables the pushing of a large amount of concrete, and the pushing process promotes the mixing between concrete aggregates.
[0050] Furthermore, since the tank is constantly rotating during transportation, the first pusher frame 31 and the second pusher frame 32 move in an opening-closing-opening motion within the tank, thus fully mixing the concrete aggregates within the tank and solving the technical defects of aggregate stratification and coagulation.
[0051] A plurality of connecting springs are connected between the first push frame 31 and the second push frame 32; specifically, the connecting springs are arranged on both sides of the first push frame 31 and the second push frame 32 facing each other; the two ends of the connecting spring 34 are respectively welded to the first push frame 31 and the second push frame 32.
[0052] The first push frame 31 and the second push frame 32 are kept in an elastic tension state by the connecting spring 34. As a result, the elastic tension between the first push frame 31 and the second push frame 32 prevents the opening and closing process from being too large and impacting the inner wall of the tank.
[0053] Furthermore, in this manner, the elasticity of the spring is used to assist the opening and closing movements of the first push frame 31 and the second push frame 32.
[0054] This enhances the mixing effect of concrete aggregates.
[0055] The hinge method of the first push frame 31 and the second push frame 32 mentioned above is as follows:
[0056] Both the first push frame 31 and the second push frame 32 are hinged to the inner wall of the mixing tank 2 via a hinge bracket 33. The hinge bracket 33 includes a fixed bracket 331 fixedly installed on the first push frame 31 and the second push frame 32, and a suspension bracket 332 is hinged to the fixed bracket 331 via a pin. The suspension bracket 332 is fixedly installed on the mixing tank 2.
[0057] In actual operation, since the tank is equipped with helical blades (not shown in the figure), the suspension mounting bracket 332 is welded with connecting screws (not shown in the figure) according to the existing conventional installation method. The connecting screws are welded to the inner side wall of the tank to avoid the position of the helical blades.
[0058] Example 2
[0059] like Figure 1-5 As shown, this embodiment further reduces the agglomeration of concrete aggregate based on the structure of embodiment 1. Several dovetail wing structures 4 are fixedly installed in the first push frame 31 and the second push frame 32. The dovetail wing structures 4 are used to disperse concrete materials to prevent agglomeration.
[0060] Specifically, the dovetail wing structure is arranged at a density of 10-15cm (the first push frame 31 and the second push frame 32 are frame structures). By arranging the dovetail wing structure, the mixing effect of the material is increased.
[0061] Secondly, the dovetail structure helps to break up lumps of material in the concrete in a timely manner, preventing further agglomeration.
[0062] Specifically, the dovetail wing structure 4 includes a fixedly installed tail wing mounting rod 41, on which several tail wing structures are fixedly connected, with the tail wing structures arranged along the length of the tail wing mounting rod 41. Each tail wing structure includes several circumferentially distributed tail wing plates 42, each tail wing plate 42 being triangular in shape; the tail wing plates are made of 3mm thick steel plates (to maintain sufficient strength) welded to the tail wing mounting rod 41.
[0063] Furthermore, the tip of the tail fin 42 (shaped like a swallow's tail, with a triangular and sharp point) is positioned outwards. At the same time, the tail fin is angled (the angle is towards the rear).
[0064] During operation, as the first pusher frame 31 and the second pusher frame 32 rotate and push the material, the tail fins, with their spikes facing outwards, increase the pushing and mixing effect of the aggregate, while simultaneously breaking up any clumps of material in the aggregate. Furthermore, due to the specific density of the tail fins, the effective volume of material broken up is small. The inclined design, combined with the inclined arrangement of the tank body, further enhances the effect of breaking up material clumps during rotation.
[0065] Example 3
[0066] like Figure 1-5 As shown, in this embodiment, based on the structure of embodiment 1, in order to timely monitor the drying status of the material in the tank, a sensor structure is installed in the mixing tank 2 in accordance with existing methods.
[0067] The sensor structure includes a humidity sensor (not shown in the figure) and a temperature sensor (not shown in the figure). Specifically, the humidity sensor and temperature sensor are conventional sensors used in existing concrete tanks to monitor the humidity inside the tank and the temperature of the concrete (concrete releases chemical energy to generate high temperatures) to prevent the concrete from setting too quickly due to high temperatures.
[0068] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.
Claims
1. A concrete truck anti-set device comprising a truck and a rotatable mixing drum on the truck, characterized by, The concrete anti-setting mechanism is installed in the mixing tank. The concrete anti-setting mechanism comprises a first push frame and a second push frame hinged at the top and bottom positions of the tank body. A plurality of connecting springs are connected between the first push frame and the second push frame. A plurality of dovetail wing structures are fixedly installed in the first push frame and the second push frame.
2. The freeze prevention apparatus for a concrete mixer truck of claim 1, wherein, The first push frame and the second push frame are hingedly installed on the inner side wall of the mixing tank through hinged supports.
3. The freeze prevention apparatus for a concrete mixer truck of claim 2, wherein, The hinged supports comprise fixed supports fixedly installed on the first push frame and the second push frame, and a suspension mounting frame hingedly connected to the fixed supports through a pin shaft and fixedly installed on the mixing tank.
4. The freeze prevention apparatus for a concrete mixer truck of claim 1, wherein, The connecting springs are arranged on both sides of the side walls of the first push frame and the second push frame. The two ends of the connecting springs are respectively welded on the first push frame and the second push frame.
5. The freeze prevention apparatus for a concrete mixer truck of claim 1, wherein, The dovetail wing structure comprises a tail wing mounting rod fixedly installed and arranged, and a plurality of tail wing structures fixedly connected to the tail wing mounting rod and arranged along the length direction of the tail wing mounting rod.
6. The freeze prevention apparatus for a concrete mixer truck of claim 5, wherein, The tail wing structure comprises a plurality of tail wing plates circumferentially distributed, and the shape of the tail wing plate is triangular. The tip of the tail wing plate is outwardly arranged.
7. The freeze prevention apparatus for a concrete mixer truck of claim 6, wherein, The tail wing plate is obliquely arranged.
8. The freeze prevention apparatus for a concrete mixer truck of claim 1, wherein, A sensor structure is installed in the mixing tank.
9. The freeze prevention apparatus for a concrete mixer truck of claim 8, wherein, The sensor structure comprises a humidity sensor and a temperature sensor.