Concrete pouring device

Abstract

The present invention discloses a concrete pouring device, comprising: a mixing tank, an annular opening being formed between the cover at the top thereof and the top of the side wall of the mixing tank; a bracket; a connecting rod, the top of which is connected to the bracket; a connecting member, which is connected to both the cover and the connecting rod; a pushing rod, which is fixed on the mixing shaft; a support plate, which is arranged above the connecting member, the connecting rod passing through the support plate and being rotatably connected to the support plate; a connecting plate, which is arranged above the support plate, the connecting rod passing through the connecting plate and being rotatably connected to the connecting plate; two cleaning rods, which are respectively inserted into the opening, the tops of the two cleaning rods being respectively connected to the connecting plate, and the lower parts of both being located in the mixing tank, a scraping plate and brush filaments being respectively arranged on the two cleaning rods; at least one guiding rod, the bottom of each guiding rod being connected to the support plate, and the top of each passing through the connecting plate; a lifting device, which is arranged on the support plate. The cleaning mechanism provided by the present invention will not obstruct the concrete when mixing the concrete.

Description

Technical Field

[0001] The present invention relates to the field of concrete pouring, and more particularly to a concrete pouring device. Background Art

[0002] Concrete, abbreviated as "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, and water (which may contain admixtures and additives) in a certain proportion, and then mixed to obtain cement concrete, also known as ordinary concrete, which is widely used in civil engineering.

[0003] Concrete pouring refers to the process of pouring concrete into a mold until it is plasticized. After pouring concrete using a concrete pouring device, the inside of the device needs to be cleaned. However, although a cleaning mechanism is set inside the device, the cleaning mechanism is always located in the pouring box. When the concrete is stirred, it will hinder the concrete, and the concrete is also easy to agglomerate on the cleaning mechanism. Summary of the invention

[0004] The purpose of the present invention is to provide a concrete pouring device. When the concrete is stirred, the connecting plate is driven to move upward by the lifting device, so that the two cleaning rods can be moved upward until the lower ends of the two cleaning rods are respectively in contact with the two ends of the pushing rod, so that the two cleaning rods and the scraper and the brush wire are all located above the concrete. When the concrete is stirred, no obstruction is formed to the concrete, and the concrete will not be agglomerated on the cleaning mechanism. At the end of the stirring, the connecting plate is driven to move downward by the lifting device, and the driving device drives the stirring shaft to rotate, so that the two ends of the pushing rod respectively push the two cleaning rods to rotate in the opening, so that the scraper and the brush wire clean the inner wall of the mixing tank.

[0005] In order to achieve these objects and other advantages of the present invention, a concrete pouring device is provided, comprising:

[0006] A stirring tank, wherein a discharge port is arranged at the bottom, a stirring device is arranged inside, a sealing cover is arranged at the top of the stirring tank, the sealing cover is spaced a certain distance from the top of the side wall of the stirring tank, and an annular opening is formed; a stirring shaft of the stirring device is arranged vertically, the top of the stirring shaft passes through the sealing cover, and is rotatably connected to the sealing cover, and is connected to a driving device fixed on the sealing cover;

[0007] A bracket connected to the side wall of the mixing tank;

[0008] A connecting rod, which is coaxially arranged with the stirring shaft and is located above the sealing cover, and the top of the connecting rod is fixedly connected to the bracket;

[0009] A connecting piece, which covers the outside of the driving device and is fixedly connected to both the cover and the bottom of the connecting rod;

[0010] A push rod, the middle of which is fixed on the stirring shaft and is located above the stirring blades;

[0011] A support plate, which is arranged above the connecting piece. The connecting rod passes through the support plate and is rotatably connected to the support plate. The support plate cannot move up and down;

[0012] A connecting plate, which is arranged above the support plate. The connecting rod passes through the connecting plate and is rotatably connected to the connecting plate. The connecting plate can move up and down;

[0013] Two cleaning rods, which are respectively vertically inserted into the openings. The tops of the two cleaning rods are respectively connected to the connecting plate, and the lower parts are both located in the mixing tank. One of the two cleaning rods is provided with a scraping plate, and the other is provided with brush filaments. The two cleaning rods are not opposite to the stirring blades up and down. When the driving device drives the stirring shaft to rotate and the two cleaning rods are both in the lowest position, the two ends of the push rod can respectively push the two cleaning rods to rotate in the openings, and the scraping plate and the brush filaments are both attached to the inner wall of the mixing tank;

[0014] At least one guiding rod, each guiding rod is vertically arranged, the bottom of each guiding rod is fixedly connected to the support plate, and the top of each guiding rod passes through the connecting plate;

[0015] A lifting device, which is arranged on the support plate and is connected to the connecting plate for driving the connecting plate to move up and down; during the process that the connecting plate drives the two cleaning rods to move from the lowest position to the highest position, the connecting plate is always inserted through each guiding rod. When the two cleaning rods are in the highest position, the lower ends of the two cleaning rods respectively contact the two ends of the push rod and are both located above the stirring blades. The two cleaning rods and the brush plate and the brush filaments are all located in the openings.

[0016] Preferably, in the concrete pouring device, the feeding port of the mixing tank is arranged on the side wall of the mixing tank and is located above the stirring blades. When the two cleaning rods are in the highest position, the feeding port is located below the two cleaning rods.

[0017] Preferably, in the concrete pouring device, the support is in an inverted U shape, and the ends of the two vertical parts of the support are both fixedly connected to the side wall of the upper part of the mixing tank.

[0018] Preferably, in the concrete pouring device, it further includes:

[0019] The limiting plate is arranged below the part between the two vertical parts of the bracket and above the connecting plate. The connecting rod passes through the limiting plate and is rotatably connected to the limiting plate. The limiting plate cannot move up and down. The tops of the guiding rods are fixedly connected to the limiting plate. When the two cleaning rods are in the highest position, the connecting plate contacts the limiting plate.

[0020] Preferably, in the concrete pouring device, there are two guiding rods, which are symmetrically arranged with respect to the connecting rod. The inside of the connecting rod is hollow. The connecting piece is a cuboid with a hollow inside and an open bottom. The top and the side walls of the connecting piece are both of double-layer structure, and there are cavities between the double-layer structures of both. The cavities inside the top and the side walls of the connecting piece communicate with each other, and are both communicated with the inside of the connecting rod and the inside of the mixing tank.

[0021] The concrete pouring device further includes:

[0022] The water inlet pipe has one end connected to a water source and the other end vertically downward passing through the bracket and extending into the inside of the connecting rod.

[0023] Preferably, in the concrete pouring device, a limiting block is fixedly arranged on the connecting rod. The limiting block is located between the connecting plate and the supporting plate and is not vertically opposite to the lifting device. When the two cleaning rods are in the lowest position, the connecting plate contacts the limiting block.

[0024] Preferably, in the concrete pouring device, the push rod includes a first rod body and two second rod bodies. The two second rod bodies are parallel to each other and are both perpendicular to the first rod body. The two second rod bodies are respectively located on both sides of the first rod body. One ends of the two second rod bodies are respectively fixedly connected to the two ends of the first rod body. The middle part of the first rod body is fixedly connected to the mixing shaft. When the driving device drives the mixing shaft to rotate, the other ends of the two second rod bodies can respectively push the two cleaning rods to rotate in the openings.

[0025] Preferably, in the concrete pouring device, it further includes:

[0026] The screw conveyor has its inlet communicated with the discharge port.

[0027] Preferably, in the concrete pouring device, the upper part of the mixing tank is cylindrical, and the diameter of the lower part gradually decreases to a conical shape. The discharge port is arranged at the center of the bottom of the mixing tank. The cleaning rods are opposite to the inner side walls of the upper and lower parts of the mixing tank. When the two ends of the push rod respectively push the two cleaning rods to rotate in the openings, the scraping plates and the brush filaments are both attached to the inner side walls of the upper and lower parts of the mixing tank.

[0028] Preferably, in the concrete pouring device, the tops of the two cleaning rods are detachably connected to the connecting plate. At the bottom of the part of the cleaning rod opposite to the upper part of the mixing tank, a pair of ear plates are provided. The pair of ear plates are spaced apart, and each of them is provided with a square first through hole. The two first through holes on the pair of ear plates are arranged opposite to each other. At the top of the part of the cleaning rod opposite to the lower part of the mixing tank, a connecting block is provided. The connecting block is provided with a square second through hole. The connecting block is inserted between the pair of ear plates, and the second through hole is opposite to the two first through holes. The part of the cleaning rod opposite to the upper part of the mixing tank and the part of the cleaning rod opposite to the lower part of the mixing tank are detachably connected by a connecting shaft. The middle part of the connecting shaft is cuboid-shaped, and the two ends are cylindrical. External threads are provided at both ends of the connecting shaft. The size of the cross-section of the middle part of the connecting shaft is the same as the sizes of the first through hole and the second through hole. The middle part of the connecting shaft passes through the two first through holes and the second through hole. A nut is provided at each end of the connecting shaft, and the two nuts respectively abut against the two ear plates. When the two cleaning rods are in the highest position, the connecting shaft and the two nuts are both located above the opening.

[0029] The present invention has at least the following beneficial effects:

[0030] When mixing concrete, the lifting device drives the connecting plate to move upward, enabling the two cleaning rods to move upward until the lower ends of the two cleaning rods respectively contact the two ends of the pushing rod. In this way, the two cleaning rods, the scraping plate and the brush filaments are all located above the concrete. When mixing concrete, they will not obstruct the concrete, and the concrete will not agglomerate on the cleaning mechanism. When the mixing is completed, the lifting device drives the connecting plate to move downward, and the driving device drives the mixing shaft to rotate, so that the two ends of the pushing rod respectively push the two cleaning rods to rotate in the opening, and the scraping plate and the brush filaments clean the inner wall of the mixing tank.

[0031] The present invention detachably connects the part of the cleaning rod opposite to the upper part of the mixing tank and the part opposite to the lower part of the mixing tank through the connecting shaft and the two nuts, and when the connecting plate drives the two cleaning rods to move from the lowest position until the lower ends of the two cleaning rods respectively contact the two ends of the pushing rod, the connecting shaft and the two nuts are both located above the opening, making it easy to remove the part of the cleaning rod opposite to the lower part of the mixing tank. Also, since the tops of the two cleaning rods are respectively detachably connected to the connecting plate, the two cleaning rods, the scraping plate and the brush filaments are easy to replace.

[0032] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic structural diagram of a concrete pouring device according to an embodiment of the present invention;

[0034] Figure 2 Schematic structural diagram of a push rod according to an embodiment of the present invention;

[0035] Figure 3 Schematic structural diagram of two cleaning rods passing through an opening according to an embodiment of the present invention;

[0036] Figure 4 Schematic structural diagram of a push rod according to an embodiment of the present invention. Detailed implementation manners

[0037] The following further describes the present invention in detail with reference to the accompanying drawings so that those skilled in the art can implement it according to the description in the specification.

[0038] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by terms such as "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does 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 should not be construed as a limitation to the present invention.

[0039] As Figures 1 to 3 shown, the present invention provides a concrete pouring device, including:

[0040] A mixing tank 1, having a discharge port 101 at its bottom, a mixing device inside, a cover 11 at the top of the mixing tank 1. The cover 11 is spaced a certain distance from the top of the side wall of the mixing tank 1 and forms an annular opening 111; the mixing shaft of the mixing device is vertically arranged, the top of the mixing shaft passes through the cover 11, is rotatably connected to the cover 11, and is connected to a driving device fixed on the cover 11;

[0041] A bracket 2, which is connected to the side wall of the mixing tank 1;

[0042] A connecting rod 3, which is coaxially arranged with the mixing shaft and is located above the cover 11. The top of the connecting rod 3 is fixedly connected to the bracket 2;

[0043] A connecting member 4, which covers the outside of the driving device and is fixedly connected to both the cover 11 and the bottom of the connecting rod 3, so that the cover 11 is fixed to the bracket 2 through the connecting rod 3 and the connecting member 4;

[0044] A push rod 5, the middle of which is fixed on the mixing shaft and is located above the mixing blades;

[0045] A support plate 6 is arranged above the connecting piece 4. The connecting rod 3 passes through the support plate 6 and is rotatably connected to the support plate 6 through a bearing. The support plate 6 cannot move up and down.

[0046] A connecting plate 7 is arranged above the support plate 6. The connecting rod 3 passes through the connecting plate 7 and is rotatably connected to the connecting plate 7. The connecting plate 7 can move up and down.

[0047] Two cleaning rods 8 are respectively vertically arranged in the openings 111. The tops of the two cleaning rods 8 are respectively connected to the connecting plate 7, and the lower parts are both located in the stirring tank 1. One of the two cleaning rods 8 is provided with a scraping plate, and the other is provided with brush filaments. The two cleaning rods 8 are respectively not opposite to the stirring blades up and down, and the stirring blades and the stirring shaft do not affect the up and down movement of the two cleaning rods 8. When the driving device drives the stirring shaft to rotate and the two cleaning rods 8 are both in the lowest position, the two ends of the pushing rod 5 can respectively push the two cleaning rods 8 to rotate in the openings 111, and the scraping plate and the brush filaments are both attached to the inner wall of the stirring tank 1.

[0048] At least one guiding rod 9 is vertically arranged. The bottoms of the guiding rods 9 are fixedly connected to the support plate 6, and the tops all pass through the connecting plate 7. The support plate 6 and the connecting plate 7 are connected together through the guiding rod 9, so that when the stirring shaft rotates, the support plate 6 and the connecting plate 7 can rotate synchronously, and the connecting plate 7 can move up and down.

[0049] A lifting device 10 is arranged on the support plate 6 and is connected to the connecting plate 7 for driving the connecting plate 7 to move up and down. When the support plate 6 rotates, the lifting device 10 rotates with the support plate 6. During the process that the connecting plate 7 drives the two cleaning rods 8 to move from the lowest position to the highest position, the connecting plate 7 is always arranged on the guiding rods 9. When the two cleaning rods 8 are in the highest position, the lower ends of the two cleaning rods 8 respectively contact the two ends of the pushing rod 5 and are both located above the stirring blades. The two cleaning rods 8, the brush plate and the brush filaments are all located in the openings 111.

[0050] When the concrete pouring device provided by this solution is in use, the lifting device 10 pushes the connecting plate 7 upward until the two cleaning rods 8 are at the highest position. At this time, the lower ends of the two cleaning rods 8 are respectively in contact with both ends of the pushing rod 5 and are both above the stirring blades. The two cleaning rods 8, the brush plate and the brush filaments are all located in the opening 111. Then, concrete is introduced into the mixing tank 1 through the opening 111, and the concrete does not fall onto the two cleaning rods 8, the brush plate and the brush filaments. Then, the driving device drives the stirring shaft to rotate. As the stirring shaft rotates, the stirring blades stir the concrete, and at the same time, the pushing rod 5 on it rotates synchronously. When the pushing rod 5 rotates, it pushes the two cleaning rods 8, the brush plate and the brush filaments to rotate, and at the same time drives the connecting plate 7, the support plate 6, each guiding rod 9, and the lifting device 10 to rotate synchronously.

[0051] During pouring, the discharge port 101 is opened to discharge the concrete from the mixing tank 1. After pouring is completed, the discharge port 101 is closed, and water is introduced into the mixing tank 1 through the opening 111. At the same time, the lifting device 10 drives the connecting plate 7 to move downward until the two cleaning rods 8 are at the lowest position. The driving device continues to drive the stirring shaft to rotate. As the stirring shaft rotates, the pushing rod 5 on it rotates synchronously. When the pushing rod 5 rotates, it pushes the two cleaning rods 8, the brush plate and the brush filaments to rotate, and at the same time drives the connecting plate 7, the support plate 6, each guiding rod 9, and the lifting device 10 to rotate synchronously. The cleaning rods 8, the brush plate and the brush filaments rotate, and can continuously clean the inner wall of the mixing tank 1. After cleaning is completed, the above steps are continuously repeated.

[0052] Specifically, in the concrete pouring device, the feed inlet of the mixing tank 1 is arranged on the side wall of the mixing tank 1 and is located above the stirring blades. When the two cleaning rods 8 are at the highest position, the feed inlet is located below the two cleaning rods 8. When introducing materials into the mixing tank 1 through the feed inlet, it can prevent the materials from falling onto the cleaning rods 8, the brush plate and the brush filaments.

[0053] Specifically, in the concrete pouring device, the support 2 is in an inverted U shape, and the ends of the two vertical parts of the support 2 are both fixedly connected to the side wall of the upper part of the mixing tank 1.

[0054] Specifically, in the concrete pouring device, it further includes:

[0055] A limiting plate 12, which is arranged below the part between the two vertical parts of the support 2 and above the connecting plate 7. The connecting rod 3 passes through the limiting plate 12 and is rotatably connected to the limiting plate 12 through a bearing. The limiting plate 12 cannot move up and down. The tops of each guiding rod 9 are all fixedly connected to the limiting plate 12. When the two cleaning rods 8 are at the highest position, the connecting plate 7 is in contact with the limiting plate 12, and the limiting plate 12 can limit the connecting plate 7.

[0056] Specifically, in the concrete pouring device, there are two guide rods 9, and the two guide rods 9 are symmetrically arranged with respect to the connecting rod 3. The inside of the connecting rod 3 is hollow. The connecting piece 4 is a cuboid with a hollow inside and an open bottom. The top and side walls of the connecting piece 4 are both double-layer structures, and there are cavities between the double-layer structures of both. The cavities inside the top and side walls of the connecting piece 4 are interconnected and communicate with the inside of the connecting rod 3 and the inside of the mixing tank 1;

[0057] The concrete pouring device further includes:

[0058] A water inlet pipe 13, one end of which is connected to a water source, and the other end vertically penetrates through the bracket 2 and extends into the inside of the connecting rod 3.

[0059] After the pouring is completed, water is introduced into the connecting rod 3 through the water inlet pipe 13. The water flows into the cavities corresponding to the top and side walls of the connecting piece 4 and then flows into the mixing tank 1. This can prevent the water inlet pipe 13 from affecting the rotation of the cleaning rod 8, the connecting plate 7, the support plate 6, each guide rod 9, the lifting device 10, etc.

[0060] Specifically, in the concrete pouring device, a limit block is fixed on the connecting rod 3. The limit block is located between the connecting plate 7 and the support plate 6 and is not opposite to the lifting device 10 up and down. When the two cleaning rods 8 are in the lowest position, the connecting plate 7 contacts the limit block, and the limit block can limit the connecting plate 7.

[0061] Specifically, in the concrete pouring device, as Figure 4 shown, the push rod 5 includes a first rod body 51 and two second rod bodies 52. The two second rod bodies 52 are parallel to each other and perpendicular to the first rod body 51. The two second rod bodies 52 are respectively located on both sides of the first rod body 51. One ends of the two second rod bodies 52 are respectively fixedly connected to both ends of the first rod body 51. The middle of the first rod body 51 is fixedly connected to the mixing shaft. When the driving device drives the mixing shaft to rotate, the other ends of the two second rod bodies 52 can respectively push the two cleaning rods 8 to rotate in the opening 111.

[0062] Specifically, in the concrete pouring device, it further includes:

[0063] A screw conveyor 14, whose inlet is communicated with the discharge port 101, and discharges the concrete through its outlet.

[0064] Specifically, in the concrete pouring device, the upper part of the mixing tank 1 is cylindrical, and the diameter of the lower part gradually decreases to a conical shape. The discharge port 101 is arranged at the center of the bottom of the mixing tank 1. The cleaning rod 8 is opposite to the inner side walls of both the upper and lower parts of the mixing tank 1. When the two ends of the push rod 5 respectively push the two cleaning rods 8 to rotate in the opening 111, both the scraping plate and the brush filaments are in contact with the inner side walls of the upper and lower parts of the mixing tank 1, so that the scraping plate and the brush filaments can clean the inner side walls of the upper and lower parts of the mixing tank 1 simultaneously.

[0065] Specifically, in the concrete pouring device, neither the mixing blades nor the mixing shaft affects the up and down movement of the two cleaning rods 8. The tops of the two cleaning rods 8 are detachably connected to the connecting plate 7 respectively, so that the two cleaning rods 8 can be separated from the connecting plate 7, which is convenient for replacing the cleaning rods 8. A pair of ear plates 81 are arranged at the bottom of the part of the cleaning rod 8 opposite to the upper part of the mixing tank 1. The pair of ear plates 81 are arranged at intervals, and each of them is provided with a square first through hole. The two first through holes on the pair of ear plates 81 are arranged opposite to each other. A connecting block 82 is arranged at the top of the part of the cleaning rod 8 opposite to the lower part of the mixing tank 1. A square second through hole is arranged on the connecting block 82. The connecting block 82 is inserted between the pair of ear plates 81, and the second through hole is opposite to the two first through holes. The part of the cleaning rod 8 opposite to the upper part of the mixing tank 1 and the part of the cleaning rod 8 opposite to the lower part of the mixing tank 1 are detachably connected by a connecting shaft 83. The middle part of the connecting shaft 83 is rectangular, and the two ends are cylindrical. External threads are arranged at the two ends of the connecting shaft 83. The size of the cross section of the middle part of the connecting shaft 83 is the same as that of the first through hole and the second through hole. The middle part of the connecting shaft 83 passes through the two first through holes and the second through hole, and a nut is arranged at each of the two ends of the connecting shaft 83. The two nuts are respectively abutted against the two ear plates 81. When the two cleaning rods 8 are in the highest position, the connecting shaft 83 and the two nuts are both located above the opening 111, so that the nuts and the connecting shaft 83 are convenient to remove, and further convenient to take out the part of the cleaning rod 8 opposite to the lower part of the mixing tank 1. Since both the first through hole and the second through hole are square, and the middle part of the connecting shaft 83 is also square, after the connecting shaft 83 is inserted into the first through hole and the second through hole, the part of the cleaning rod 8 opposite to the lower part of the mixing tank 1 cannot rotate relative to the part of the cleaning rod 8 opposite to the upper part of the mixing tank 1, so that the two parts always maintain a fixed angle, and further the upper and lower parts of the brush plate and the brush filaments are always in contact with the inner side walls of the upper and lower parts of the mixing tank 1 respectively.

[0066] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those skilled in the art, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrated examples described herein.

Claims

1. Concrete pouring device, characterized in that, it includes: A mixing tank, which is provided with a discharge port at the bottom, a mixing device inside, and a cover at the top. The cover is spaced a certain distance from the top of the side wall of the mixing tank and forms an annular opening; the mixing shaft of the mixing device is vertically arranged, the top of the mixing shaft passes through the cover, is rotatably connected to the cover, and is connected to a driving device fixed on the cover; A bracket, which is connected to the side wall of the mixing tank; A connecting rod, which is coaxially arranged with the mixing shaft and is located above the cover. The top of the connecting rod is fixedly connected to the bracket; A connecting piece, which covers the outside of the driving device and is fixedly connected to both the cover and the bottom of the connecting rod; A push rod, the middle of which is fixed on the mixing shaft and is located above the mixing blades; A support plate, which is arranged above the connecting piece. The connecting rod passes through the support plate and is rotatably connected to the support plate. The support plate cannot move up and down; A connecting plate, which is arranged above the support plate. The connecting rod passes through the connecting plate and is rotatably connected to the connecting plate. The connecting plate can move up and down; Two cleaning rods, which are respectively vertically inserted into the opening. The tops of the two cleaning rods are respectively connected to the connecting plate, and the lower parts are both located in the mixing tank. One of the two cleaning rods is provided with a scraping plate, and the other is provided with brush filaments. The two cleaning rods are not opposite to the mixing blades up and down. When the driving device drives the mixing shaft to rotate and the two cleaning rods are both in the lowest position, the two ends of the push rod can respectively push the two cleaning rods to rotate in the opening, and the scraping plate and the brush filaments are both attached to the inner wall of the mixing tank; At least one guide rod, each guide rod is vertically arranged, the bottom of each guide rod is fixedly connected to the support plate, and the top passes through the connecting plate; A lifting device, which is arranged on the support plate and is connected to the connecting plate for driving the connecting plate to move up and down; during the process of the connecting plate driving the two cleaning rods to move from the lowest position to the highest position, the connecting plate is always inserted through each guide rod. When the two cleaning rods are in the highest position, the lower ends of the two cleaning rods respectively contact the two ends of the push rod and are both located above the mixing blades. The two cleaning rods and the brush plate and the brush filaments are all located in the opening.

2. The concrete pouring device according to claim 1, characterized in that, The feed inlet of the mixing tank is arranged on the side wall of the mixing tank and is located above the mixing blades. When the two cleaning rods are in the highest position, the feed inlet is located below the two cleaning rods.

3. The concrete pouring device according to claim 1, characterized in that, The bracket is in an inverted U shape, and the ends of the two vertical parts of the bracket are both fixedly connected to the upper side wall of the mixing tank.

4. The concrete pouring device according to claim 3, characterized in that, It further includes: The limiting plate is arranged below the part between the two vertical parts of the bracket and above the connecting plate. The connecting rod passes through the limiting plate and is rotatably connected to the limiting plate. The limiting plate cannot move up and down. The tops of the guiding rods are fixedly connected to the limiting plate. When the two cleaning rods are in the highest position, the connecting plate contacts the limiting plate.

5. The concrete pouring device according to claim 4, characterized in that there are two guiding rods, and the two guiding rods are symmetrically arranged with respect to the connecting rod. The inside of the connecting rod is hollow. The connecting piece is a cuboid with a hollow inside and an open bottom. The top and the side wall of the connecting piece are both double-layer structures, and there are cavities between the double-layer structures of both. The cavities inside the top and the side wall of the connecting piece are interconnected and communicate with the inside of the connecting rod and the inside of the mixing tank; The concrete pouring device further includes: a water inlet pipe, one end of which is connected to a water source and the other end vertically penetrates the bracket and extends into the inside of the connecting rod.

6. The concrete pouring device according to claim 4, characterized in that a limiting block is fixedly arranged on the connecting rod. The limiting block is located between the connecting plate and the supporting plate and is not vertically opposite to the lifting device. When the two cleaning rods are in the lowest position, the connecting plate contacts the limiting block.

7. The concrete pouring device according to claim 1, characterized in that the pushing rod includes a first rod body and two second rod bodies. The two second rod bodies are parallel to each other and are both perpendicular to the first rod body. The two second rod bodies are respectively located on both sides of the first rod body. One ends of the two second rod bodies are fixedly connected to both ends of the first rod body respectively. The middle of the first rod body is fixedly connected to the mixing shaft. When the driving device drives the mixing shaft to rotate, the other ends of the two second rod bodies can respectively push the two cleaning rods to rotate in the opening.

8. The concrete pouring device according to claim 1, characterized in that further includes: a screw conveyor, the inlet of which is communicated with the discharge port.

9. The concrete pouring device according to claim 1, characterized in that the upper part of the mixing tank is cylindrical, and the diameter of the lower part gradually decreases to a conical shape. The discharge port is arranged at the center of the bottom of the mixing tank. The cleaning rods are opposite to the inner side walls of the upper and lower parts of the mixing tank. When the two ends of the pushing rod respectively push the two cleaning rods to rotate in the opening, the scraping plate and the brush filaments are both attached to the inner side walls of the upper and lower parts of the mixing tank.

10. The concrete pouring device according to claim 9, characterized in that The tops of the two cleaning rods are respectively detachably connected to the connecting plate. A pair of ear plates are provided at the bottom of the part of the cleaning rod opposite to the upper part of the mixing tank. The pair of ear plates are spaced apart, and each of them is provided with a square first through hole. The two first through holes on the pair of ear plates are arranged opposite to each other. A connecting block is provided at the top of the part of the cleaning rod opposite to the lower part of the mixing tank. A square second through hole is provided on the connecting block. The connecting block is inserted between the pair of ear plates, and the second through hole is opposite to the two first through holes. The part of the cleaning rod opposite to the upper part of the mixing tank and the part of the cleaning rod opposite to the lower part of the mixing tank are detachably connected by a connecting shaft. The middle part of the connecting shaft is cuboid-shaped, and the two ends are cylindrical. External threads are provided at the two ends of the connecting shaft. The size of the cross-section of the middle part of the connecting shaft is the same as the sizes of the first through hole and the second through hole. The middle part of the connecting shaft is passed through the two first through holes and the second through hole. A nut is respectively provided at each of the two ends of the connecting shaft, and the two nuts respectively abut against the two ear plates; when the two cleaning rods are in the highest position, the connecting shaft and the two nuts are both located above the opening.

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