Concrete stirring device

Abstract

The utility model provides a concrete mixing device. When the blocking plate is attached to the screen, screen holes of the screen are in a closed state, and when the blocking plate moves downwards to be away from the screen, the screen holes of the screen are gradually opened. When the smoothing plate rotates, the materials on the screen mesh are flattened, and due to the fact that the materials entering from the feeding hopper can be accumulated, the smoothing plate can enable the materials to be evenly distributed on the surface of the screen mesh. A connecting spring drives a blocking plate to block the screen mesh in an initial state, so that materials can be prevented from being screened by the screen mesh when the flattening plate is used for flattening the materials, the materials are ensured to be fully flattened, and the materials can be uniformly screened downwards to fall off when the screen mesh is opened; therefore, the materials can be uniformly and fully fused with other materials (water and the like) in the material mixing barrel. In other words, the concrete is fully fused to prevent the concrete from caking, so that the efficiency of stirring the concrete and the quality of the stirred concrete are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete mixing technical field, especially a kind of concrete mixing device. BACKGROUND

[0002] Concrete mixer is a kind of construction machinery, mainly used to cement, sand, gravel, water and additional admixture etc. raw materials are mixed according to certain proportion, prepare even concrete mixture, to facilitate construction, concrete mixer can save manpower, greatly improve the quality of concrete mixing, so as to ensure the quality of construction, therefore, concrete mixer plays an important role in construction process.

[0003] The existing mixer when mixing concrete raw materials, due to the large amount of raw materials is introduced into the mixer, it is easy to accumulate in the mixer content far from uneven distribution, so that concrete far in the mixing process is prone to caking phenomenon, therefore, need to increase the mixing time of raw materials, to achieve the effect of sufficient mixing, also lead to the mixing efficiency of concrete is reduced, and still can lead to the problem of finished concrete quality decline. SUMMARY

[0004] In view of the above problem, the utility model is presented to provide a kind of concrete mixing device to overcome the above problems or at least partially solve the above problems, can solve the problem of low mixing efficiency of existing concrete mixing equipment to concrete raw materials, reach the effect of improving the mixing efficiency of concrete raw materials and improving concrete quality.

[0005] Specifically, the utility model provides a kind of concrete mixing device, concrete mixing device includes:

[0006] Mixing barrel, the upper portion of the mixing barrel is equipped with a feed hopper;

[0007] The blanking assembly includes a screen, a blocking plate and a connecting spring. The screen has a plurality of screen holes, is horizontally arranged in the mixing barrel, and is located below the feed hopper. The blocking plate has a plurality of plug columns with the same diameter and height as the screen holes. The blocking plate is horizontally arranged below the screen. Each screen hole coincides with the vertical projection of the plug column. The connecting spring is used to connect the screen and the blocking plate. The connecting spring has an initial state in which the screen and the blocking plate are in close contact, and a stretched state in which the plug column and the screen hole are separated.

[0008] The smoothing assembly includes a smoothing plate and a trigger. The smoothing plate is arranged above the screen and is gap-fitted with the lower end edge of the screen. The trigger is used to stretch the connecting spring from the initial state to the stretched state when the smoothing plate rotates by a predetermined angle.

[0009] a stirring assembly arranged in the mixing barrel, the stirring assembly configured to drive the flattening plate to rotate when in operation.

[0010] Optionally, the stirring assembly comprises a stirring shaft; the stirring shaft and the screen are coaxially and rotationally arranged in the mixing barrel; the inner vertical edge of the flattening plate is fixedly connected with the stirring shaft.

[0011] Optionally, the trigger comprises an upper pressing block and a lower pressing block; the screen is provided with a through hole; the lower pressing block is fixedly arranged on the blocking plate; the lower pressing block is configured to have its upper end above the screen through the through hole when the connecting spring is in the initial state; the lower pressing block and the upper pressing block are both wedge blocks, and the inclined surfaces of the upper pressing block and the lower pressing block are oppositely arranged; the upper pressing block is fixed to the stirring shaft, so that the upper pressing block pushes the lower pressing block to move downward when the stirring shaft rotates by a preset angle.

[0012] Optionally, the top of the lower pressing block and the lower end of the upper pressing block are both provided with horizontal surfaces.

[0013] Optionally, the opposite surfaces of the lower pressing block and the upper pressing block to the respective inclined surfaces are both vertical surfaces.

[0014] Optionally, the outer vertical edge of the flattening plate is located in front of the inner vertical edge along the rotation direction of the flattening plate.

[0015] Optionally, the stirring assembly further comprises a stirring motor and stirring blades;

[0016] The stirring motor is fixedly arranged on the mixing barrel; the stirring blades are arranged on the stirring shaft.

[0017] Optionally, the blocking plate comprises a plurality of connecting plates and a connecting disc; the connecting disc is sleeved on the stirring shaft; the plurality of connecting plates are uniformly distributed along the circumference of the connecting disc; the connecting plates are fixedly connected with the connecting disc; each of the connecting plates is provided with a plurality of plug columns.

[0018] The concrete mixing device has the mixing barrel, the material falling assembly, the flattening assembly and the stirring assembly, and the flattening assembly comprises a flattening plate and a trigger piece.

[0019] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, when taken in conjunction with the annexed drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Some embodiments of the present application will now be described in detail with reference to the drawings, which are provided as illustrative examples so as to enable those skilled in the art to practice the present application. However, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, in the context of the present details, those of ordinary skill in the art will further recognize that the terms "including" and / or "comprising" are used herein in the context of describing compositions and / or processes that can include additional steps and / or components, but that these additional steps and / or components need not necessarily be present in order for the compositions and / or processes to be within the scope of the present application.

[0021] Figure 1 is a schematic structural view of a concrete mixing device according to an embodiment of the present application;

[0022] Figure 2 is a schematic internal structural view of a concrete mixing device according to an embodiment of the present application;

[0023] Figure 3 is Figure 2 is a local enlarged view of A in FIG. 1;

[0024] Figure 4 is a schematic structural view of a blocking plate in a concrete mixing device according to an embodiment of the present application.

[0025] In the figure: 100, mixing barrel; 110, feeding hopper; 200, material falling assembly; 210, screen; 211, screen hole; 212, through hole; 220, blocking plate; 221, plug column; 222, connecting plate; 223, connecting disc; 230, connecting spring; 310, smoothing plate; 320, trigger; 321, upper pressing block; 322, lower pressing block; 400, stirring assembly; 410, stirring shaft; 420, stirring blade; 430, stirring motor. DETAILED DESCRIPTION

[0026] The concrete mixing device of the embodiments of the present application will be described below with reference to Figures 1 to 4 In the description of the embodiments, it should be understood that the terms "first" and "second" are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features and can further include other features.

[0027] Unless otherwise specifically defined and limited, the terms "set", "mount", "connected", "connected", "fixed", "coupled" and the like should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0028] In addition, in the description of the embodiments, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the embodiments, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" or "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0029] In the description of the present embodiments, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0030] Figure 1 is a schematic structural diagram of a concrete mixing device, as Figure 1 indicated and with reference to Figures 2 to 4 The present application provides a concrete mixing device, which comprises a mixing barrel 100, a material falling assembly 200, a smoothing assembly and a stirring assembly 400. The mixing barrel 100 is provided with a feeding hopper 110 at the top. The material falling assembly 200 comprises a screen 210, a blocking plate 220 and a connecting spring 230. The screen 210 is provided with a plurality of screen holes 211 and is horizontally arranged in the mixing barrel 100 and located below the feeding hopper 110. The blocking plate 220 is provided with a plurality of plug columns 221 which are the same in diameter and height with the screen holes 211. The blocking plate 220 is horizontally arranged below the screen 210, and the projection of each screen hole 211 and the plug column 221 in the vertical direction is coincident. The connecting spring 230 is used to connect the screen 210 and the blocking plate 220. The connecting spring 230 has an initial state in which the screen 210 and the blocking plate 220 are in close contact, and a stretched state in which the plug column 221 and the screen hole 211 are separated.

[0031] The smoothing assembly comprises a smoothing plate 310 and a trigger 320. The smoothing plate 310 is arranged above the screen 210 and the lower end edge is in clearance fit with the screen 210. The trigger 320 is used to drive the connecting spring 230 to stretch from the initial state to the stretched state when the smoothing plate 310 rotates by a preset angle. The stirring assembly 400 is arranged in the mixing barrel 100 and is used to drive the smoothing plate 310 to rotate when working.

[0032] Specifically, the screen 210 is fixedly arranged to screen the material introduced into the mixing barrel 100 from the feeding hopper 110. Further, the screen hole 211 and the plug column 221 are arranged with the same diameter and height, so that when the screen 210 and the blocking plate 220 are completely attached, the screen hole 211 on the screen 210 is completely blocked by the plug column 221, and the upper surface of the plug column 221 is coplanar with the upper surface of the screen 210, so as to improve the efficiency of the flattening plate 310 in flattening the material on the screen 210. Further, the blocking plate 220 is arranged to be movable up and down relative to the screen plate, and when the blocking plate 220 and the screen 210 are attached, the screen hole 211 of the screen 210 is in a closed state, and when the blocking plate 220 moves downward away from the screen 210, the screen hole 211 of the screen 210 is gradually opened.

[0033] Specifically, the flattening plate 310 flattens the material on the screen 210 during rotation. Since the material introduced from the feeding hopper 110 will accumulate, the flattening plate 310 can uniformly distribute the material on the surface of the screen 210. Further, the connecting spring 230 drives the blocking plate 220 to block the screen 210 in the initial state, so that the flattening plate 310 can prevent the material from being screened by the screen 210 when flattening the material, so as to ensure that the material is fully flattened, and then the material can be uniformly screened downward when the screen 210 is opened, so as to enable the material to be fully mixed with other materials (water, etc.) in the mixing barrel 100. That is, the material is fully mixed to prevent the material from caking, thereby greatly improving the efficiency of stirring the material and the quality of the stirred material.

[0034] In operation, the stirring assembly 400 is started to introduce the material from the feeding hopper 110 into the mixing barrel 100. The material is accumulated on the screen 210 through the feeding hopper 110, and the stirring assembly 400 drives the flattening plate 310 to rotate in operation. The flattening plate 310 flattens the accumulated material during rotation, and the connecting spring 230 is in the initial state at this time, so that the screen 210 is in a closed state. When the flattening plate 310 rotates by a predetermined angle, the trigger assembly causes the connecting spring 230 to be stretched, so that the blocking plate 220 moves downward relative to the screen 210, and the plug column 221 is separated from the blocking of the screen hole 211, so that the screen 210 is opened. Since the material on the screen 210 is completely flattened by the flattening plate 310, the material uniformly falls from the screen 210 into the mixing barrel 100.

[0035] In the embodiment, in order to complete the above scheme, the mixing barrel 100 is further provided with a discharging mechanism for discharging the stirred material.

[0036] In some embodiments of the present application, Figure 2As shown, the stirring assembly 400 comprises a stirring shaft 410, which is coaxial with the screen 210 and is rotatably arranged in the mixing barrel 100, and the inner side vertical edge of the smoothing plate 310 is fixedly connected with the stirring shaft 410.

[0037] Specifically, the shafts of the screen 210 and the blocking plate 220 are provided with insertion holes, and the stirring shaft 410 sequentially penetrates the insertion holes of the screen 210 and the blocking plate 220 and is rotatably inserted into the mixing barrel 100. Further, the smoothing plate 310 is vertically arranged, and the inner side edge fixedly connected with the stirring shaft 410 can make the smoothing plate 310 rotate synchronously with the stirring shaft 410.

[0038] In some embodiments of the present application, as shown in Figures 2 to 4 As shown, the trigger 320 comprises an upper pressing block 321 and a lower pressing block 322, and the screen 210 is provided with a through hole. The lower pressing block 322 is fixedly arranged on the blocking plate 220 and coincides with the vertical projection of the through hole 212. The lower pressing block 322 is configured to be located above the screen 210 when the connecting spring 230 is in the initial state. The lower pressing block 322 and the upper pressing block 321 are both wedge blocks, and the inclined surfaces of the upper pressing block 321 and the lower pressing block 322 are oppositely arranged. The upper pressing block 321 is fixed to the stirring shaft 410, so that when the stirring shaft 410 rotates by a preset angle, the upper pressing block 321 pushes the lower pressing block 322 to move downward.

[0039] Specifically, the through hole 212 arranged on the screen 210 can make the lower pressing block 322 slide up and down in the through hole 212 when the blocking plate 220 moves up and down relative to the screen 210. Further, the wedge block has an inclined surface, and since the inclined surfaces of the upper pressing block 321 and the lower pressing block 322 are oppositely arranged, when the upper pressing block 321 moves relative to the lower pressing block 322, the two inclined surfaces abut against each other. Since the upper pressing block 321 is fixed to the stirring shaft 410, the inclined surface of the upper pressing block 321 cooperates to push the lower pressing block 322 to move downward, and the lower pressing block 322 drives the blocking plate 220 to move downward, so that the connecting spring 230 is stretched and the screen 210 is opened.

[0040] In some embodiments of the present application, as shown in Figure 3 and Figure 4 As shown, the top of the lower pressing block 322 and the lower end of the upper pressing block 321 are both provided with horizontal surfaces. Specifically, when the horizontal surfaces of the upper pressing block 321 and the lower pressing block 322 contact each other, the lower pressing block 322 remains in the pressed state, so that the arrangement of the horizontal surfaces can make the lower pressing block 322 remain in the pressed state for a period of time. That is, when the horizontal surfaces of the upper pressing block 321 and the lower pressing block 322 contact each other, the connecting spring 230 is in the stretched state and prevents the connecting spring 230 from immediately rebounding. That is, the opened state of the screen 210 will last for a period of time, so that the material on the screen 210 can be fully dropped.

[0041] In some embodiments of the present application, as shown in Figure 4 Specifically, the two vertical surfaces are perpendicular to the respective horizontal surfaces. Further, the vertical surfaces are configured to instantaneously release the contact state between the upper pressing block 321 and the lower pressing block 322 when the horizontal surfaces of the upper pressing block 321 and the lower pressing block 322 are separated from each other, so that the connecting spring 230 quickly contracts to the initial state. Further, the rapid rebound of the connecting spring 230 can drive the screen 210 and the blocking plate 220 to vibrate, thereby enabling the material located in the dead angle of the screen 210 and the blocking plate 220 to be shaken off.

[0042] In some embodiments of the present application, as shown in Figure 4 Specifically, since the position of the feeding hopper 110 is arranged on one side above the mixing barrel 100, when the material falls onto the screen 210 through the feeding hopper 110, the material is accumulated on the outside of the screen 210. Therefore, the arrangement of the outer vertical edge of the smoothing plate 310 in front of the inner vertical edge along the rotation direction of the smoothing plate 310 enables the smoothing plate 310 to gradually push the material on the outside of the screen 210 inward when the smoothing plate 310 rotates, thereby improving the flattening effect of the material.

[0043] In some embodiments of the present application, as shown in Figure 2 Specifically, the stirring motor 430 is configured to drive the stirring shaft 410 to rotate, and the stirring blades 420 are configured to stir and mix the material in the mixing barrel 100 when the stirring blades 420 rotate with the stirring shaft 410. In the present embodiment, the stirring blades 420 are composed of multiple blades with different rotation directions, which further improves the stirring efficiency of the material.

[0044] In some embodiments of the present application, as shown in Figure 4 Specifically, the blocking plate 220 includes multiple connecting plates 222 and a connecting disc 223. The connecting disc 223 is sleeved on the stirring shaft 410, and the multiple connecting plates 222 are evenly distributed along the circumference of the connecting disc 223. The connecting plate 222 is fixedly connected with the connecting disc 223. Each connecting plate 222 is provided with multiple plug columns 221. Specifically, the arrangement of the connecting plate 222 and the connecting disc 223 can achieve the purpose of lightweight design of the blocking plate 220.

[0045] Up to now, the person skilled in the art should recognize that, although the multiple exemplary embodiments of the utility model have been shown and described in detail herein, many other variants or modifications conforming to the principles of the utility model can still be directly determined or deduced according to the content disclosed by the utility model without departing from the spirit and scope of the utility model. Therefore, the scope of the utility model should be understood and recognized as covering all these other variants or modifications.

Claims

1. A concrete mixing device, characterized by, Comprising: a mixing barrel, which is provided with an upper feeding hopper; a material dropping assembly, which comprises a screen, a blocking plate and a connecting spring; the screen is provided with a plurality of screen holes, is horizontally arranged in the mixing barrel and is located below the feeding hopper; the blocking plate is provided with a plurality of plug columns which are the same in diameter and height with the screen holes, is horizontally arranged below the screen, and each screen hole is coincident with the vertical projection of a plug column; the connecting spring is used to connect the screen and the blocking plate; the connecting spring has an initial state in which the screen and the blocking plate are in close contact, and a stretched state in which the plug columns and the screen holes are separated; a smoothing assembly, which comprises a smoothing plate and a trigger; the smoothing plate is arranged above the screen and is gap-fitted with the lower end edge of the screen; the trigger is used to drive the connecting spring to stretch from the initial state to the stretched state when the smoothing plate rotates by a preset angle; a stirring assembly, which is arranged in the mixing barrel and is used to drive the smoothing plate to rotate when working.

2. The concrete mixing device according to claim 1, wherein the stirring assembly comprises a stirring shaft; the stirring shaft and the screen are coaxial and are rotationally arranged in the mixing barrel; the inner vertical edge of the smoothing plate is fixedly connected with the stirring shaft.

3. The concrete mixing device according to claim 2, wherein the trigger comprises an upper pressing block and a lower pressing block; the screen is provided with a through hole; the lower pressing block is fixedly arranged on the blocking plate; the lower pressing block is configured to be located above the screen through the through hole when the connecting spring is in the initial state; the lower pressing block and the upper pressing block are both wedge blocks, and the inclined surfaces of the upper pressing block and the lower pressing block are oppositely arranged; the upper pressing block is fixed to the stirring shaft, so that the upper pressing block pushes the lower pressing block to move downward when the stirring shaft rotates by a preset angle.

4. The concrete mixing device according to claim 3, wherein the top of the lower pressing block and the lower end of the upper pressing block are both provided with horizontal surfaces.

5. The concrete mixing device according to claim 3, wherein the surfaces opposite to the respective inclined surfaces of the lower pressing block and the upper pressing block are both vertical surfaces.

6. The concrete mixing device according to claim 1, wherein the outer vertical edge of the smoothing plate is located in front of the inner vertical edge along the rotation direction of the smoothing plate.

7. The concrete mixing device according to claim 2, wherein the stirring assembly further comprises a stirring motor and stirring blades; the stirring motor is fixedly arranged on the mixing barrel; the stirring blades are arranged on the stirring shaft.

8. The concrete mixing device according to claim 2, wherein the blocking plate comprises a plurality of connecting plates and a connecting disc; the connecting disc is sleeved on the stirring shaft; the connecting plates are uniformly distributed along the circumference of the connecting disc; the connecting plates are fixedly connected with the connecting disc; and each connecting plate is provided with a plurality of plug columns.

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