Concrete plain end mixer

Abstract

The utility model discloses a concrete plain end mixer which realizes the function of continuously switching a driving shaft in the clockwise direction and the anticlockwise direction in an inner cavity of a mixing tank under the action of a mixing assembly, so that the efficiency and the uniformity of concrete mixing are improved. An inner gear is fixedly arranged on the inner side wall of a rotating disc, an outer gear is fixedly arranged on the outer surface of a cylindrical block, the diameter of the rotating disc is larger than that of the cylindrical block, and the number of teeth of the inner gear is larger than that of teeth of the outer gear, so that when the inner gear is meshed with a driving gear, a driving shaft does decelerating motion; the speed reduction can provide larger torque output, is beneficial to intense stirring of concrete, and ensures that coarse aggregate in the concrete is fully crushed and mixed; when the outer gear is meshed with the driving gear, the driving shaft does accelerated motion, the acceleration is beneficial to rapid circulation of concrete in the stirring process, the stirring efficiency is improved, and especially after the concrete is preliminarily mixed, rapid stirring can help to further refine the mixture.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a flat concrete mixer. Background Art

[0002] Concrete is a general term for engineering composite materials that are cemented into a whole by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates, mixed with water in a certain proportion, and then mixed to obtain cement concrete, also known as ordinary concrete, which is widely used in civil engineering. Flat mixer is a vertical flat processing equipment used to mix concrete.

[0003] Some existing mixers, for example: Application No.: CN202223316193.0, Application Date: 2022-12-07, propose a concrete flat-mouth mixer, which can effectively reduce the resistance of the first mixing blade and effectively improve the mixing efficiency of concrete, including a mixing tank, a plurality of support columns are arranged at the bottom end of the mixing tank, a driving shaft is arranged in the middle of the mixing tank, a plurality of support plates are arranged at the top of the driving shaft, a connecting plate is arranged at the bottom end of each support plate, a first mixing blade is arranged at the bottom end of each connecting plate, a differential box is arranged at the bottom of the mixing tank, a base is arranged below the mixing tank, a driving motor is arranged at the top of the base, a transmission shaft is arranged between the driving motor and the differential box, a plurality of fixed blocks are arranged at the top of the inner wall of the mixing tank, a nozzle is arranged inside the fixed block, a connecting pipe is arranged on the side of the nozzle, a water pump is arranged at one end of the connecting pipe, a water inlet pipe is arranged at the bottom of the water pump, a plurality of spray holes are arranged on the side wall of the nozzle, and the lengths of the plurality of support plates are different.

[0004] Although the above-mentioned patent can effectively reduce the resistance to concrete, since the drive shaft can usually only rotate in one direction, such as clockwise or counterclockwise, it is impossible to achieve continuous switching of the drive shaft between clockwise and counterclockwise directions, thereby limiting the scope of use of the concrete mixer and also causing a certain impact on the uniformity of concrete mixing. Utility Model Content

[0005] The utility model aims to provide a flat concrete mixer, which can realize the continuous switching of the driving shaft between the clockwise and counterclockwise directions, thereby further improving the efficiency and uniformity of concrete mixing, and also can greatly increase the application range of the concrete mixer.

[0006] In order to solve the above technical problems, the utility model adopts a technical solution:

[0007] A concrete mixer, comprising:

[0008] A stirring tank, wherein a bracket is fixedly arranged at the lower part of the stirring tank, and a discharge port is opened at the lower part of the inner cavity of the stirring tank;

[0009] A stirring assembly is rotatably disposed in the stirring tank and is used to mix and stir the concrete;

[0010] The stirring assembly comprises:

[0011] A driving motor is arranged at the lower part of the bracket, and an output end of the driving motor passes through the bracket and extends to the upper part of the bracket and is fixedly connected with a turntable, and the turntable is rotatably arranged at the upper part of the bracket;

[0012] An internal gear, fixedly arranged on the inner side wall of the upper part of the rotating disk;

[0013] A cylindrical block is fixedly arranged at the center of the upper part of the turntable;

[0014] An external gear, fixedly arranged on the outer circumferential surface of the cylindrical block;

[0015] A driving shaft is rotatably sleeved in the inner cavity of the mixing tank, the bottom end of the driving shaft passes through the mixing tank and abuts against the upper part of the turntable, and the bottom end of the driving shaft is located between the internal gear and the cylindrical block;

[0016] A driving gear, fixedly sleeved on the bottom end of the driving shaft, the driving gear meshes with the inner gear and the outer gear respectively;

[0017] A first limiting assembly is fixedly arranged at the top end of the driving shaft;

[0018] The first agitator is fixedly mounted on the first limiting assembly.

[0019] According to some embodiments, the first limiting component includes:

[0020] A positioning screw is fixedly arranged at the top end of the driving shaft, and the first agitator is sleeved on the positioning screw;

[0021] A locking nut is sleeved on the positioning screw, and the locking nut is located above the first agitator.

[0022] According to some embodiments, the first agitator comprises:

[0023] The first mounting plate is sleeved on the positioning screw, a plurality of support plates are fixedly arranged on the first mounting plate, a connecting plate is fixedly arranged at the lower part of the support plate, and a first stirring blade is fixedly arranged at the lower part of the connecting plate.

[0024] According to some embodiments, the first stirring blade has a conical structure.

[0025] According to some embodiments, a second agitator is further fixedly disposed at the lower portion of the support plate, the second agitator is located on one side of the connecting plate, and the second agitator comprises:

[0026] A support rod, fixedly arranged at the lower part of the support plate;

[0027] A first limiting plate, fixedly arranged on the support rod;

[0028] A second limiting plate, fixedly disposed below the first limiting plate;

[0029] The mounting sleeve is a rotating sleeve disposed on the support rod, the mounting sleeve is located between the first limiting plate and the second limiting plate, a plurality of stirring rods are fixedly disposed on the mounting sleeve, and a second stirring blade is fixedly disposed at the lower portion of the stirring rod.

[0030] According to some embodiments, the second stirring blade has an arc-shaped structure.

[0031] According to some embodiments, a watering assembly is provided in the mixing tank, and the watering assembly includes:

[0032] A plurality of mounting blocks are fixedly arranged along the circumferential surface of the inner cavity of the mixing tank;

[0033] An annular tube is fixedly sleeved on the mounting block, a plurality of nozzles are provided on the inner side of the annular tube, a water receiving pipe is fixedly connected to the outer side of the annular tube, one end of the water receiving pipe passes through the mixing tank and extends to the outside of the mixing tank.

[0034] According to some embodiments, a limiting groove connected to the outside of the mixing tank is provided at the discharge port, and a blocking component is provided in the limiting groove, and the blocking component includes:

[0035] A blocking plate is slidably embedded in the limiting groove;

[0036] A fixed block, fixedly arranged on one side of the blocking plate;

[0037] A third limiting plate is fixedly arranged on one side of the outside of the mixing tank;

[0038] A second mounting plate, fixedly disposed above the third limiting plate;

[0039] The driving rod is rotatably sleeved on the second mounting plate, the bottom end of the driving rod passes through the second mounting plate and is fixedly connected to the fixing block, the top end of the driving rod passes through the third limiting plate and is clamped on the second limiting assembly, and the second limiting assembly is arranged on the upper part of the third limiting plate.

[0040] According to some embodiments, the second limiting component includes:

[0041] A spring, wherein the bottom end of the spring is fixedly connected to the third limit plate, the top end of the spring is fixedly connected to the limit block, and the driving rod is clamped on the limit block.

[0042] According to some embodiments, the driving rod is in an L-shaped structure.

[0043] Beneficial effects:

[0044] 1. Through the coordination of the driving motor, turntable, internal gear, cylindrical block, external gear and driving shaft, the driving shaft can be continuously switched between clockwise and counterclockwise in the inner cavity of the mixing tank, thereby further improving the efficiency and uniformity of concrete mixing, and at the same time greatly increasing the scope of use of the concrete mixer.

[0045] 2. An inner gear is fixedly arranged on the inner wall of the turntable, and an outer gear is fixedly arranged on the outer surface of the cylindrical block. Since the diameter of the turntable is larger than that of the cylindrical block, the number of teeth of the inner gear is greater than that of the outer gear, so that when the inner gear is meshed with the driving gear, the driving shaft performs a deceleration motion. This deceleration can provide a greater torque output, which is conducive to the strong mixing of concrete and ensures that the coarse aggregate in the concrete is fully crushed and mixed; when the outer gear is meshed with the driving gear, the driving shaft performs an acceleration motion. This acceleration helps the rapid circulation of concrete during the mixing process and improves the mixing efficiency. Especially after the concrete is initially mixed, rapid mixing can help further refine the mixture.

[0046] 3. Through the alternating meshing of the inner gear and the outer gear with the driving gear, the drive shaft can continuously switch between deceleration and acceleration modes, thereby meeting the needs of different stages in the concrete mixing process. For example, strong mixing is required in the initial mixing stage, while gentle mixing may be required in the subsequent stage to avoid over-mixing. At the same time, this change in deceleration and acceleration helps to improve the mixing uniformity of the concrete, because the mixing speed at different stages can be optimized according to the different characteristics of the concrete.

[0047] 4. Under the action of the first limiting assembly, the first agitator is detachably mounted on the driving shaft, so that the driving shaft drives the first agitator to mix and stir the concrete.

[0048] Additional aspects and advantages of the utility model will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. 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.

[0050] Figure 1 It is a schematic diagram of the utility model;

[0051] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0052] Figure 3 for Figure 2 A schematic diagram of a stirring assembly is shown in;

[0053] Figure 4 for Figure 3 A schematic diagram of a first agitator shown in;

[0054] Figure 5 for Figure 4 A schematic diagram of a second agitator shown in;

[0055] Figure 6 for Figure 1 A perspective cutaway view of the mixing tank and the plugging assembly shown in FIG.

[0056] Figure 7 for Figure 6 A local enlarged view of point A shown in FIG.

[0057] Figure 8 for Figure 1 Schematic diagram of the watering assembly shown in .

[0058] In the figure, 1 is a mixing tank, 11 is a bracket, 12 is a discharging port, 13 is a limiting groove, 2 is a mixing component, 21 is a driving motor, 22 is a turntable, 23 is an internal gear, 24 is a cylindrical block, 25 is an external gear, 26 is a driving shaft, 27 is a driving gear, 28 is a first limiting component, 281 is a positioning screw, 282 is a locking nut, 29 is a first agitator, 291 is a first mounting plate, 292 is a support plate, 293 is a connecting plate, 294 is a first stirring blade, 295 is a second stirring device, 2951 support rod, 2952 first limit plate, 2953 second limit plate, 2954 mounting sleeve, 2955 stirring rod, 2956 second stirring blade, 3 watering assembly, 31 mounting block, 32 annular pipe, 33 nozzle, 34 water connecting pipe, 4 blocking assembly, 41 blocking plate, 42 fixing block, 43 third limit plate, 44 second mounting plate, 45 driving rod, 46 second limit assembly, 461 spring, 462 limit block. DETAILED DESCRIPTION

[0059] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0060] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0061] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0062] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0063] Combination Figures 1 to 8 As shown, a flat concrete mixer comprises a mixing tank 1 and a mixing assembly 2.

[0064] A bracket 11 is fixedly provided at the lower part of the mixing tank 1, and a discharge port 12 is opened at the lower part of the inner cavity of the mixing tank 1; the mixing component 2 is rotatably arranged in the mixing tank 1, and is used for mixing and stirring concrete; the mixing component 2 includes: a driving motor 21, a turntable 22, an internal gear 23, a cylindrical block 24, an external gear 25, a driving shaft 26, a driving gear 27, a first limit component 28 and a first agitator 29. The driving motor 21 is arranged at the lower part of the bracket 11, and the output end of the driving motor 21 passes through the bracket 11 and extends to the upper part of the bracket 11 and is fixedly connected with a turntable 22, which is rotatably arranged on the upper part of the bracket 11; the internal gear 23 is fixedly arranged on the inner side wall of the upper part of the turntable 22; the cylindrical block 24 is fixedly arranged at the exact center position of the upper part of the turntable 22; the external gear 25 is fixedly arranged on the outer circumferential surface of the cylindrical block 24; the driving shaft 26 is rotatably sleeved in the inner cavity of the mixing tank 1, the bottom end of the driving shaft 26 passes through the mixing tank 1 and abuts against the upper part of the turntable 22, and the bottom end of the driving shaft 26 is located between the internal gear 23 and the cylindrical block 24; the driving gear 27 is fixedly sleeved on the bottom end of the driving shaft 26, and the driving gear 27 is meshed with the internal gear 23 and the external gear 25 respectively; the first limit assembly 28 is fixedly arranged at the top end of the driving shaft 26; the first agitator 29 is fixedly sleeved on the first limit assembly 28.

[0065] Among them, by cooperating with the driving motor 21, the rotating disk 22, the internal gear 23, the cylindrical block 24, the external gear 25 and the driving shaft 26, the driving shaft 26 can be continuously switched between clockwise and counterclockwise directions in the inner cavity of the mixing tank, thereby further improving the efficiency and uniformity of concrete mixing, and at the same time greatly increasing the scope of use of the concrete mixer; by fixing the internal gear 23 on the inner side wall of the rotating disk 22 and fixing the external gear 25 on the outer surface of the cylindrical block 24, since the diameter of the rotating disk 22 is larger than that of the cylindrical block 24, the number of teeth of the internal gear 23 is greater than that of the external gear 25, so that when the internal gear 23 is meshed with the driving gear 27, the driving shaft 26 performs a deceleration motion, and this deceleration can provide greater torque output, which is beneficial to the strong mixing of concrete and ensures that the coarse aggregate in the concrete is fully crushed and mixed; when the external gear 25 is meshed with the driving gear 27 , the drive shaft 26 performs an accelerating motion, and this acceleration helps the rapid circulation of concrete during the mixing process and improves the mixing efficiency, especially after the concrete is initially mixed, rapid mixing can help further refine the mixture; by the action of the inner gear 23 and the outer gear 25 being alternately meshed with the drive gear 27, the drive shaft 26 can continuously switch between the deceleration and acceleration modes, thereby meeting the needs of different stages in the concrete mixing process, such as strong mixing is required in the initial mixing stage, while gentle mixing may be required in the subsequent stage to avoid excessive mixing, and at the same time, this change in deceleration and acceleration helps to improve the mixing uniformity of the concrete, because the mixing speeds at different stages can be optimized according to the different characteristics of the concrete; by the action of the first limit assembly 28, the first agitator 29 is detachably mounted on the drive shaft 26, so that the drive shaft 26 drives the first agitator 29 to mix and stir the concrete.

[0066] Combination Figure 1 , Figure 2 and Figure 3 As shown, the first limiting assembly 28 includes: a positioning screw 281 and a locking nut 282. The positioning screw 281 is fixedly arranged at the top end of the driving shaft 26, and the first agitator 29 is sleeved on the positioning screw 281; the locking nut 282 is sleeved on the positioning screw 281, and the locking nut 282 is located above the first agitator 29.

[0067] The positioning screw 281 can be used to position the first agitator 29 , and the locking nut 282 can be used to fix the first agitator 29 on the driving shaft 26 .

[0068] Combination Figure 3 and Figure 4As shown, the first agitator 29 includes: a first mounting plate 291, a support plate 292, a connecting plate 293 and a first stirring blade 294. The first mounting plate 291 is sleeved on the positioning screw 281, a plurality of supporting plates 292 are fixedly arranged on the first mounting plate 291, a connecting plate 293 is fixedly arranged at the lower part of the supporting plate 292, and a first stirring blade 294 is fixedly arranged at the lower part of the connecting plate 293.

[0069] When the driving shaft 26 rotates, the driving shaft 26 drives the first mounting plate 291, the support plate 292, the connecting plate 293 and the first stirring blade 294 to rotate together, so that the connecting plate 293 and the first stirring blade 294 can mix and stir the concrete.

[0070] To further explain, the first stirring blade 294 has a conical structure, and the conical structure makes the cross-sectional area of ​​the first stirring blade 294 gradually decrease from top to bottom. The first stirring blade 294 can better penetrate the concrete during rotation, reducing the resistance during the stirring process. At the same time, this shape design helps to increase the contact area between the first stirring blade 294 and the inner wall of the mixing tank 1, thereby improving the stirring efficiency.

[0071] Combination Figure 4 and Figure 5 As shown, a second agitator 295 is fixedly arranged at the lower part of the support plate 292, and the second agitator 295 is located at one side of the connecting plate 293. The second agitator 295 includes: a support rod 2951, a first limiting plate 2952, a second limiting plate 2953, a mounting sleeve 2954 and a stirring rod 2955. The support rod 2951 is fixedly arranged at the lower part of the support plate 292; the first limiting plate 2952 is fixedly arranged on the support rod 2951; the second limiting plate 2953 is fixedly arranged below the first limiting plate 2952; the mounting sleeve 2954 is rotatably sleeved on the support rod 2951, and the mounting sleeve 2954 is located between the first limiting plate 2952 and the second limiting plate 2953. A plurality of stirring rods 2955 are fixedly arranged on the mounting sleeve 2954, and a second stirring blade 2956 is fixedly arranged at the lower part of the stirring rod 2955.

[0072] Among them, when the driving shaft 26 rotates, the driving shaft 26 will not only drive the first mounting plate 291, the support plate 292, the connecting plate 293 and the first stirring blade 294 to rotate together, but also during the rotation of the support plate 292, the support plate 292 will drive the support rod 2951, the first limiting plate 2952, the second limiting plate 2953, the mounting sleeve 2954 and the stirring rod 2955 to rotate together, thereby realizing the mixing and stirring of the concrete by the first stirring blade 294 and the second stirring blade 2956.

[0073] Further explanation, the second stirring blade 2956 has an arc-shaped structure. The arc-shaped structure enables the second stirring blade 2956 to generate a larger centrifugal force during the rotation, thereby increasing the stirring effect and making the stirring more uniform and sufficient. The second stirring blade 2956 can reduce resistance and improve stirring efficiency during the rotation, thereby making the stirring smoother and faster. At the same time, it also helps to prevent solid particles from depositing at the bottom of the container during the stirring process, thereby avoiding excessive local concentration of solid particles affecting the stirring effect.

[0074] Combination Figure 1 , Figure 2 and Figure 8 As shown, a watering assembly 3 is provided in the mixing tank 1, and the watering assembly 3 includes: a mounting block 31, an annular tube 32, a nozzle 33 and a water receiving pipe 34. The mounting block 31 is fixedly provided with a plurality of nozzles 33 along the circumferential surface of the inner cavity of the mixing tank 1; the annular tube 32 is fixedly sleeved on the mounting block 31, and a plurality of nozzles 33 are provided on the inner side of the annular tube 32, and a water receiving pipe 34 is fixedly connected to the outer side of the annular tube 32, and one end of the water receiving pipe 34 passes through the mixing tank 1 and extends to the outside of the mixing tank 1.

[0075] The water can be passed through the water receiving pipe 34 so that the water follows the trajectory of the annular pipe 32 and enters the inner cavity of the mixing tank 1 from the plurality of nozzles 33 to be mixed with the concrete.

[0076] Combination Figure 1 , Figure 6 and Figure 7 As shown, a limiting groove 13 connected to the outside of the mixing tank 1 is provided at the discharge port 12, and a blocking assembly 4 is arranged in the limiting groove 13, and the blocking assembly 4 includes: a blocking plate 41, a fixing block 42, a third limiting plate 43, a second mounting plate 44, a driving rod 45 and a second limiting assembly 46. The blocking plate 41 is slidably embedded in the limiting groove 13; the fixing block 42 is fixedly arranged on one side of the blocking plate 41; the third limiting plate 43 is fixedly arranged on one side of the outside of the mixing tank 1; the second mounting plate 44 is fixedly arranged above the third limiting plate 43; the driving rod 45 is rotatably sleeved on the second mounting plate 44, the bottom end of the driving rod 45 passes through the second mounting plate 44 and is fixedly connected to the fixing block 42, the top end of the driving rod 45 passes through the third limiting plate 43 and is clamped on the second limiting assembly 46, and the second limiting assembly 46 is arranged on the upper part of the third limiting plate 43.

[0077] Among them, under the rotation of the driving rod 45, the driving rod 45 can drive the blocking plate 41 to be slidably blocked in the limiting groove 13 to block the discharge port 12, and it is also convenient to discharge the concrete after the concrete mixing is completed.

[0078] Combination Figure 7As shown, the second limiting assembly 46 includes: a spring 461 and a limiting block 462. The bottom end of the spring 461 is fixedly connected to the third limiting plate 43, the top end of the spring 461 is fixedly connected to the limiting block 462, and the driving rod 45 is clamped on the limiting block 462. The driving rod 45 is L-shaped.

[0079] Here, under the action of the spring 461 , the driving rod 45 is clamped on the limiting block 462 , so that the driving rod 45 is prevented from being easily pulled, thereby opening the discharge port 12 of the mixing tank 1 .

[0080] In some embodiments, the lower part of the bracket 11 is also rotatably provided with a plurality of rollers to facilitate moving the device to a corresponding place.

[0081] The working mode of the utility model is as follows:

[0082] First, pour the corresponding concrete raw materials into the inner cavity of the mixing tank 1. Secondly, through the water receiving pipe 34, water is allowed to flow along the trajectory of its annular pipe 32 and enter the inner cavity of the mixing tank 1 from multiple nozzles 33 to mix with the concrete. Then, start the driving motor 21, and the driving motor 21 drives the turntable 22 to rotate, so that an outer gear 25 is fixedly provided on the outer surface of the cylindrical block 24. Since the diameter of the turntable 22 is larger than the diameter of the cylindrical block 24, the number of teeth of the inner gear 23 is greater than the number of teeth of the outer gear 25, so that when the inner gear 23 is meshed with the driving gear 27, the driving shaft 26 performs a deceleration motion. This deceleration can provide greater torque output, which is conducive to strong mixing of concrete and ensures that the coarse aggregate in the concrete is fully crushed and mixed; when the outer gear 25 is meshed with the driving gear 27, the driving shaft 26 performs an acceleration motion. This acceleration helps the rapid circulation of concrete during the mixing process and improves the mixing efficiency. rate, especially after the concrete is initially mixed, rapid stirring can help further refine the mixture; by the action of the inner gear 23 and the outer gear 25 alternately meshing with the drive gear 27, the drive shaft 26 can continuously switch between the modes of decelerating when rotating clockwise and rotating in the opposite direction during the acceleration movement, thereby meeting the needs of different stages in the concrete mixing process, such as strong stirring is required in the initial mixing stage, while gentle stirring may be required in the subsequent stage to avoid excessive mixing. At the same time, this change in deceleration and acceleration helps to improve the mixing uniformity of the concrete, because the mixing speed at different stages can be optimized according to the different characteristics of the concrete. Finally, after the mixing of the concrete is completed, the drive rod 45 is pulled out from the limit block 462, and the drive rod 45 is rotated at the same time, so that the drive rod 45 drives the blocking plate 41 away from the discharge port 12 to realize the unloading of the concrete.

[0083] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A flat concrete mixer, characterized in that: include: A stirring tank (1), wherein a bracket (11) is fixedly arranged at the lower part of the stirring tank (1), and a discharge port (12) is opened at the lower part of the inner cavity of the stirring tank (1); A stirring assembly (2) is rotatably disposed in the stirring tank (1) and is used to mix and stir the concrete; The stirring assembly (2) comprises: A driving motor (21) is arranged at the lower part of the bracket (11); an output end of the driving motor (21) passes through the bracket (11) and extends to the upper part of the bracket (11) and is fixedly connected with a rotating disk (22); the rotating disk (22) is rotatably arranged at the upper part of the bracket (11); An internal gear (23) is fixedly mounted on the inner side wall of the upper portion of the rotating disk (22); A cylindrical block (24) is fixedly arranged at the exact center of the upper part of the rotating disk (22); An external gear (25) is fixedly arranged on the outer circumferential surface of the cylindrical block (24); A drive shaft (26) is rotatably sleeved in the inner cavity of the stirring tank (1), the bottom end of the drive shaft (26) passes through the stirring tank (1) and abuts against the upper part of the turntable (22), and the bottom end of the drive shaft (26) is located between the internal gear (23) and the cylindrical block (24); A driving gear (27) is fixedly sleeved on the bottom end of the driving shaft (26), and the driving gear (27) is meshed with the internal gear (23) and the external gear (25) respectively; A first limiting assembly (28) is fixedly arranged at the top end of the driving shaft (26); The first agitator (29) is fixedly mounted on the first limiting component (28).

2. A flat concrete mixer according to claim 1, characterized in that: The first limiting component (28) comprises: A positioning screw (281) is fixedly mounted on the top end of the driving shaft (26), and the first agitator (29) is sleeved on the positioning screw (281); A locking nut (282) is sleeved on the positioning screw (281), and the locking nut (282) is located above the first agitator (29).

3. A flat concrete mixer according to claim 2, characterized in that: The first agitator (29) comprises: The first mounting plate (291) is sleeved on the positioning screw (281), and a plurality of support plates (292) are fixedly arranged on the first mounting plate (291). A connecting plate (293) is fixedly arranged at the lower part of the support plate (292), and a first stirring blade (294) is fixedly arranged at the lower part of the connecting plate (293).

4. A flat concrete mixer according to claim 3, characterized in that: The first stirring blade (294) has a conical structure.

5. A flat concrete mixer according to claim 3, characterized in that: A second agitator (295) is also fixedly disposed at the lower portion of the support plate (292). The second agitator (295) is located on one side of the connecting plate (293). The second agitator (295) includes: A support rod (2951) is fixedly arranged at the lower part of the support plate (292); A first limiting plate (2952) is fixedly mounted on the support rod (2951); A second limiting plate (2953) is fixedly disposed below the first limiting plate (2952); The mounting sleeve (2954) is rotatably mounted on the support rod (2951), the mounting sleeve (2954) is located between the first limiting plate (2952) and the second limiting plate (2953), a plurality of stirring rods (2955) are fixedly mounted on the mounting sleeve (2954), and a second stirring blade (2956) is fixedly mounted at the lower portion of the stirring rod (2955).

6. A flat concrete mixer according to claim 5, characterized in that: The second stirring blade (2956) has an arc-shaped structure.

7. A flat concrete mixer according to claim 1, characterized in that: A watering assembly (3) is arranged in the stirring tank (1), and the watering assembly (3) comprises: A plurality of mounting blocks (31) are fixedly arranged along the circumferential surface of the inner cavity of the stirring tank (1); An annular tube (32) is fixedly sleeved on the mounting block (31), a plurality of nozzles (33) are provided on the inner side of the annular tube (32), a water receiving pipe (34) is fixedly connected to the outer side of the annular tube (32), one end of the water receiving pipe (34) passes through the stirring tank (1) and extends to the outside of the stirring tank (1).

8. A flat concrete mixer according to claim 1, characterized in that: The discharge port (12) is provided with a limiting groove (13) which is in communication with the outside of the stirring tank (1), and a blocking component (4) is arranged in the limiting groove (13). The blocking component (4) comprises: A blocking plate (41) is slidably embedded in the limiting groove (13); A fixed block (42) fixedly arranged on one side of the blocking plate (41); A third limiting plate (43) is fixedly arranged on one side of the outside of the stirring tank (1); A second mounting plate (44) is fixedly disposed above the third limiting plate (43); The driving rod (45) is rotatably sleeved on the second mounting plate (44), the bottom end of the driving rod (45) passes through the second mounting plate (44) and is fixedly connected to the fixing block (42), the top end of the driving rod (45) passes through the third limiting plate (43) and is clamped on the second limiting assembly (46), and the second limiting assembly (46) is arranged on the upper part of the third limiting plate (43).

9. A flat concrete mixer according to claim 8, characterized in that: The second limiting component (46) comprises: A spring (461), wherein the bottom end of the spring (461) is fixedly connected to the third limit plate (43), the top end of the spring (461) is fixedly connected to the limit block (462), and the driving rod (45) is clamped on the limit block (462).

10. A flat concrete mixer according to claim 8, characterized in that: The driving rod (45) is in an L-shaped structure.

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