Totally-closed premixed concrete mixing and stirring device

Abstract

The invention provides a totally-enclosed premixed concrete mixing and stirring device, and relates to the field of concrete stirring, the totally-enclosed premixed concrete mixing and stirring device comprises a support frame, a stirring barrel is fixedly mounted at the top of the support frame, one side of the stirring barrel is rotatably connected with a hollow stirring steel pipe through a bearing, and one end, penetrating into the stirring barrel, of the hollow stirring steel pipe is connected with a stirring mechanism; the crusher further comprises a driving mechanism, a steel framework, a feeding box and a crushing mechanism. A discharging pipe is arranged at the bottom of the stirring barrel to facilitate discharging, a cleaning cover is arranged on the side wall to facilitate cleaning of the stirring barrel, a driving motor works to drive a driving shaft to rotate, and then a first gear is driven to be engaged with a second gear, so that a hollow stirring steel pipe and a stirring mechanism conduct stirring in the stirring barrel; the swing rod can be driven to swing through the push rod, multi-angle stirring and mixing can be carried out, compared with a traditional stirring mode, the stirring device is more flexible, meanwhile, when the sliding rod horizontally slides, the scraper can be driven to clean the interior of the stirring barrel, and concrete is prevented from being stacked on the inner wall of the stirring barrel.

Description

Technical Field

[0001] The invention relates to the field of concrete mixing, and in particular to a fully enclosed ready-mixed concrete mixing and stirring device. Background Art

[0002] Concrete, abbreviated as "tóng", 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] For example, patent application CN215396006U discloses a fully enclosed dust-proof concrete mixing device, including a box body and a mixing mechanism. The mixing mechanism is welded at the middle position of the top upper surface of the box body. The mixing mechanism is specifically composed of a shell, a motor, a rotating shaft, a coupling, a mixing rod and a mixing block. The shell is welded at the middle position of the top upper surface of the box body, and a motor is installed at the center position of the shell. The bottom of the motor contacts and connects to the top upper surface of the box body, and the output end of the motor is connected to the top of the rotating shaft. By installing a driving wheel, a driven wheel and a conveyor belt on one side of the box, it is convenient to transport the concrete raw materials into the box, and the contact between the box and the external environment is reduced to a large extent, reducing the dust entering the box and thus affecting the use effect of the concrete. In addition, a motor is used to drive a stirring block on the top of the box to stir the concrete raw materials to ensure the mixing effect of the concrete raw materials and the use effect of the concrete. However, in actual use, it is found that although this concrete mixing device can achieve the purpose of sealed mixing, its mixing effect is not efficient enough, and after mixing, it is easy to cause residues to remain on the inner wall of the concrete, affecting subsequent use. Therefore, we have made improvements to this and proposed a fully enclosed premixed concrete mixing and stirring device. Summary of the invention

[0004] The purpose of the present invention is to provide a fully enclosed ready-mixed concrete mixing and stirring device, which solves the problem that although the traditional concrete mixing device can achieve the purpose of sealed mixing, its mixing effect is not efficient enough, and after mixing, it is easy to cause residues to remain on the inner wall of the concrete, affecting subsequent use.

[0005] In order to achieve the above-mentioned invention object, the present invention provides a fully enclosed ready-mixed concrete mixing device, comprising a support frame, a mixing barrel is fixedly installed on the top of the support frame, the mixing barrel is welded to the top of the support frame, one side of the mixing barrel is rotatably connected to a hollow mixing steel pipe through a bearing, the hollow mixing steel pipe is rotatably connected to the center of the mixing barrel, one end of the hollow mixing steel pipe that penetrates into the mixing barrel is connected to a mixing mechanism, and further comprises:

[0006] A driving mechanism, the driving mechanism is connected to one end of the support frame and is used to drive the hollow stirring steel pipe to drive the stirring mechanism to stir and mix the concrete raw materials inside the stirring barrel;

[0007] The steel frame is erected on the peripheral side of the support frame and is higher than the support frame;

[0008] The feed box is fixedly installed on the top of the steel frame, and includes a feed pipe connected to the top and a discharge pipe connected to the bottom. A sealing cover is inserted on the top of the feed pipe, which can close the feed pipe during stirring, thereby achieving closed dust prevention. The discharge pipe is connected to the stirring barrel, and a discharge port is opened at the position where the feed box is connected to the discharge pipe. A plurality of steel plates are connected to the inner side wall of the discharge port. The gap between the two steel plates allows raw materials that meet the size to enter the stirring barrel through the discharge pipe;

[0009] The crushing mechanism is installed on one side of the top of the steel frame and extends to the inside of the feed box, and is used to crush the raw materials in the feed box.

[0010] As a preferred technical solution of the present invention, the side wall of the mixing barrel is rotatably connected with a cleaning cover, and a lock is also provided on the side wall of the mixing barrel near the cleaning cover. A lock frame adapted to the lock is installed on the cleaning cover. When the lock is fastened with the lock frame, the cleaning cover can be closed on the mixing barrel. When the mixing barrel needs to be cleaned, there is no need to disassemble the mixing barrel. The mixing barrel can be cleaned by opening the lock and flipping the cleaning cover.

[0011] As a preferred technical solution of the present invention, a discharge pipe is connected to the bottom of the mixing barrel, and an opening and closing component is installed on the side wall of the discharge pipe. The opening and closing component can open or close the discharge pipe, thereby facilitating the discharge of the mixed concrete.

[0012] As a preferred technical solution of the present invention, the opening and closing component includes an opening and closing valve plate rotatably connected to the side wall of the discharge pipe, the opening and closing valve plate passing through one end of the discharge pipe is fixedly connected to an adjusting handle, the side wall of the adjusting handle is rotatably connected to a clamping rod, a spring 1 is fixedly connected between the clamping rod and the adjusting handle, the side wall of the discharge pipe is also fixedly connected to a chuck, the clamping rod can be clamped in a clamping groove on the side wall of the chuck, the opening and closing valve plate is adapted to the discharge pipe, and at the same time, the side wall of the opening and closing valve plate has a horizontal axis, thereby ensuring that the opening and closing valve plate is flipped around the horizontal axis. When the opening and closing valve plate needs to be opened, the clamping rod is pressed to cause the spring 1 to contract, the clamping rod is disengaged from the chuck, and the opening and closing valve plate can be rotated. When the adjustment is completed and the valve is closed, the clamping rod is automatically released, and the clamping rod is automatically reset under the elastic potential energy of the spring 1, thereby completing the closing by clamping and fixing.

[0013] As a preferred technical solution of the present invention, the stirring mechanism includes a push rod rotatably connected to the side wall of the hollow stirring steel pipe, one end of the push rod is rotatably connected to a swing rod, one end of the swing rod is fixedly connected to a stirring rod, the outer wall of one stirring rod is fixedly connected to a plurality of plate stirring blades, and the outer wall of the other stirring rod is fixedly connected to a spiral stirring blade. The stirring mechanism also includes a sliding rod splined and slidably connected to the inner wall of the hollow stirring steel pipe, the swing rod is rotatably connected to the sliding rod, and when the sliding rod is extended, it can drive the push rod to move, thereby driving the swing rod to rotate outward, so that the plate stirring blades and the spiral stirring blades continue to stir the concrete, and the sliding rod is splined to the hollow stirring steel pipe, thereby ensuring that the sliding rod and the hollow stirring steel pipe rotate synchronously and can slide relative to each other.

[0014] As a preferred technical solution of the present invention, the side wall of the sliding rod is also fixedly connected to a truss, and the top of the truss is also fixedly connected to a scraper. The cross-section of the scraper is a right triangle to fit the inner wall of the mixing barrel. The end of the sliding rod that passes through the hollow mixing steel pipe is fixedly connected to spring 2, and the spring 2 is fixedly connected to the hollow mixing steel pipe. When the sliding rod moves, it can drive the truss and the scraper to slide synchronously, and the scraper scrapes the inner wall of the mixing barrel to avoid the accumulation of concrete residue inside the mixing barrel.

[0015] As a preferred technical solution of the present invention, the driving mechanism includes a driving motor fixedly connected to a support frame, the output end of the driving motor is fixedly connected to a driving shaft, the side wall of the driving shaft is fixedly connected to gear one, the outer wall of gear one is meshed with gear two, and gear two is fixedly connected to the outer wall of the hollow stirring steel pipe. When the driving motor is working, the driving shaft can be driven to rotate, and the rotation of the driving shaft drives gear one and gear two to rotate, thereby driving the hollow stirring steel pipe to rotate.

[0016] As a preferred technical solution of the present invention, the crushing mechanism includes a crushing motor fixedly connected to a steel frame, the output end of the crushing motor is fixedly connected to a disc, the side wall of the disc is rotatably connected to an eccentric shaft, the outer wall of the eccentric shaft is rotatably connected to an impact pile, one end of the impact pile is rotatably connected to an impact hammer, the crushing mechanism also includes a crushing cone installed on the inner wall of a feed box, and the bottom of the impact pile is also fixedly connected to a toggle rod. The crushing motor can drive the disc to rotate when it is working, and the disc and the eccentric shaft rotate synchronously for one circle to drive the impact pile to reciprocate once. When the impact hammer moves, it can directly push the raw material to hit the crushing cone, thereby crushing the raw material.

[0017] As a preferred technical solution of the present invention, the side wall of the support frame is also fixedly connected to a U-shaped bridge, and the middle part of the U-shaped bridge is rotatably connected to a pendulum. When the pendulum flips and falls relative to the U-shaped bridge, it cooperates with the stirring mechanism. When the impact pile moves, it can drive the toggle rod to push the pendulum to move, and when the bottom of the pendulum hits the slide rod, it pushes the slide rod to move.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the scheme of the present invention:

[0020] 1. Through the arrangement of the support frame, mixing barrel, hollow mixing steel pipe, mixing mechanism and driving mechanism, a discharge pipe is arranged at the bottom of the mixing barrel for easy unloading, and a cleaning cover is arranged on the side wall for easy cleaning of the mixing barrel. The driving motor drives the driving shaft to rotate, and then drives gear 1 to mesh with gear 2 so that the hollow mixing steel pipe and the mixing mechanism can be stirred in the mixing barrel. When the slide bar slides horizontally, the swing bar can be driven to swing by the push rod, and multi-angle stirring and mixing can be performed. Compared with the traditional stirring method, it is more flexible. At the same time, when the slide bar slides horizontally, it can also drive the scraper to clean the inside of the mixing barrel to avoid the accumulation of concrete on the inner wall of the mixing barrel.

[0021] 2. Through the setting of feed box, crushing mechanism, U-shaped bridge and pendulum, the crushing motor can drive the disc to drive the impact pile to push the raw materials against the impact hammer in a gap manner, thereby crushing the raw materials to ensure that the raw materials meet the use size. At the same time, the movement of the impact pile will also drive the toggle rod to move and overturn the impact hammer. When the impact hammer falls automatically, it can impact the sliding rod, thereby cooperating with the stirring mechanism as the driving force for the deformation of the stirring mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a fully enclosed premixed concrete mixing and stirring device provided by the present invention;

[0023] Figure 2 A partially cutaway structural schematic diagram of a fully enclosed premixed concrete mixing and stirring device provided by the present invention;

[0024] Figure 3 A schematic cross-sectional structure diagram of a fully enclosed premixed concrete mixing and stirring device provided by the present invention;

[0025] Figure 4 A schematic diagram of the matching structure of a driving mechanism and a mixing barrel of a fully enclosed premixed concrete mixing and stirring device provided by the present invention;

[0026] Figure 5 A schematic cross-sectional structure diagram of a mixing barrel in a fully enclosed premixed concrete mixing and stirring device provided by the present invention;

[0027] Figure 6 A fully enclosed premixed concrete mixing device provided by the present invention Figure 4 Schematic diagram of the structure viewed from above;

[0028] Figure 7A schematic diagram of the three-dimensional structure of a stirring mechanism in a fully enclosed premixed concrete mixing and stirring device provided by the present invention;

[0029] Figure 8 A schematic diagram of the deformation state structure of a stirring mechanism in a fully enclosed ready-mixed concrete mixing and stirring device provided by the present invention;

[0030] Fig. 9 A fully enclosed premixed concrete mixing device provided by the present invention Figure 6 Enlarged structural diagram at A in the middle.

[0031] Indicated in the figure:

[0032] 10. Support frame; 11. Mixing barrel; 12. Hollow mixing steel pipe; 13. Cleaning cover; 14. Lock buckle; 15. Lock frame; 16. Discharge pipe; 17. Opening and closing member; 171. Opening and closing valve plate; 172. Adjusting handle; 173. Clamping rod; 174. Spring 1; 175. Chuck;

[0033] 20. stirring mechanism; 21. push rod; 22. swing rod; 23. stirring rod; 24. plate stirring blade; 25. spiral stirring blade; 26. sliding rod; 27. truss; 28. scraper; 29. ​​spring 2;

[0034] 30. Driving mechanism; 31. Driving motor; 32. Driving shaft; 33. Gear 1; 34. Gear 2;

[0035] 40. Steel frame;

[0036] 50. Feed box; 51. Feed pipe; 52. Discharge pipe; 53. Discharge port; 54. Steel plate;

[0037] 60. Crushing mechanism; 61. Crushing motor; 62. Disc; 63. Eccentric shaft; 64. Impact pile; 65. Impact hammer; 66. Crushing cone; 67. Toggle lever;

[0038] 70. Pendulum; 71. U-shaped bridge. DETAILED DESCRIPTION

[0039] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0040] See also Figures 1 to 9The present invention provides a technical solution: a fully enclosed ready-mixed concrete mixing device, comprising a support frame 10, a mixing barrel 11 is fixedly installed on the top of the support frame 10, the mixing barrel 11 is welded to the top of the support frame 10, one side of the mixing barrel 11 is rotatably connected to a hollow mixing steel pipe 12 through a bearing, the hollow mixing steel pipe 12 is rotatably connected to the center of the mixing barrel 11, and one end of the hollow mixing steel pipe 12 that penetrates into the mixing barrel 11 is connected to a mixing mechanism 20, and also includes:

[0041] The driving mechanism 30 is connected to one end of the support frame 10 and is used to drive the hollow mixing steel pipe 12 to drive the mixing mechanism 20 to mix the concrete raw materials inside the mixing barrel 11;

[0042] The steel frame 40 is erected on the peripheral side of the support frame 10 and is higher than the support frame 10;

[0043] The feed box 50 is fixedly installed on the top of the steel frame 40, and includes a feed pipe 51 connected to the top and a discharge pipe 52 connected to the bottom. A sealing cover is inserted on the top of the feed pipe 51, which can close the feed pipe 51 during stirring, thereby achieving closed dust prevention. The discharge pipe 52 is connected to the mixing barrel 11, and a discharge port 53 is opened at the position where the feed box 50 is connected to the discharge pipe 52. A plurality of steel plates 54 are connected to the inner side wall of the discharge port 53. The gap between the two steel plates 54 allows the raw materials that meet the size to enter the mixing barrel 11 through the discharge pipe 52;

[0044] The crushing mechanism 60 is installed on one side of the top of the steel frame 40 and extends to the inside of the feed box 50 , and is used to crush the raw materials in the feed box 50 .

[0045] As a preferred embodiment, on the basis of the above-mentioned method, further, the side wall of the mixing barrel 11 is rotatably connected with a cleaning cover 13, and a lock buckle 14 is also provided on the side wall of the mixing barrel 11 near the cleaning cover 13. A lock frame 15 adapted to the lock buckle 14 is installed on the cleaning cover 13. When the lock buckle 14 is fastened with the lock frame 15, the cleaning cover 13 can be closed on the mixing barrel 11. When the mixing barrel 11 needs to be cleaned, there is no need to disassemble the mixing barrel. The locking buckle 14 can be opened and the cleaning cover 13 can be flipped over to clean the mixing barrel 11. A discharge pipe 16 is connected to the bottom of the mixing barrel 11, and an opening and closing component 17 is installed on the side wall of the discharge pipe 16. The opening and closing component 17 can open or close the discharge pipe 16, thereby facilitating the discharge of the mixed concrete.

[0046] The opening and closing member 17 includes an opening and closing valve plate 171 rotatably connected to the side wall of the discharge pipe 16. One end of the opening and closing valve plate 171 that passes through the discharge pipe 16 is fixedly connected to an adjusting handle 172. The side wall of the adjusting handle 172 is rotatably connected to a clamping rod 173. A spring 174 is fixedly connected between the clamping rod 173 and the adjusting handle 172. The side wall of the discharge pipe 16 is also fixedly connected to a chuck 175. The clamping rod 173 can be clamped in a clamping groove on the side wall of the chuck 175. The opening and closing valve plate 171 and the discharge pipe are fixedly connected. 16 is adapted, and the side wall of the opening and closing valve plate 171 has a horizontal axis, so that the opening and closing valve plate 171 can be turned over with the horizontal axis as the axis. When the opening and closing valve plate 171 needs to be opened, the clamping rod 173 is pressed to make the spring 174 contract, and the clamping rod 173 is separated from the clamping disk 175, so that the opening and closing valve plate 171 can be rotated. When the adjustment is completed and the valve plate is closed, the clamping rod 173 is automatically released, and the clamping rod 173 is automatically reset under the elastic potential energy of the spring 174, so that the clamping and fixing can complete the closing.

[0047] As a preferred embodiment, on the basis of the above-mentioned method, further, the stirring mechanism 20 includes a push rod 21 rotatably connected to the side wall of the hollow stirring steel pipe 12, one end of the push rod 21 is rotatably connected to a swing rod 22, one end of the swing rod 22 is fixedly connected to a stirring rod 23, the outer wall of one stirring rod 23 is fixedly connected to a plurality of plate stirring blades 24, and the outer wall of another stirring rod 23 is fixedly connected to a spiral stirring blade 25, the stirring mechanism 20 also includes a sliding rod 26 spline-slidably connected to the inner wall of the hollow stirring steel pipe 12, the swing rod 22 is rotatably connected to the sliding rod 26, when the sliding rod 26 is extended, it can drive the push rod 21 to move, thereby driving the swing rod 22 to rotate outward, so that the plate stirring blades 24 and the spiral stirring blades 25 continue to stir the concrete, the sliding rod 26 is spline-connected to the hollow stirring steel pipe 12, thereby ensuring that the sliding rod 26 is The hollow mixing steel pipe 12 rotates synchronously and can also slide relatively. The side wall of the slide bar 26 is also fixedly connected to a truss 27, and the top of the truss 27 is also fixedly connected to a scraper 28. The cross-section of the scraper 28 is a right-angled triangle to fit the inner wall of the mixing barrel 11. One end of the slide bar 26 that passes through the hollow mixing steel pipe 12 is fixedly connected to a spring 29, and the spring 29 is fixedly connected to the hollow mixing steel pipe 12. When the slide bar 26 moves, the truss 27 and the scraper 28 can be driven to slide synchronously. The scraper 28 scrapes the inner wall of the mixing barrel 11 to avoid the accumulation of concrete residues inside the mixing barrel 11. Specifically, the scraper 28 is formed by fixing multiple blades through a fixing member. The spacing between the blades is the same as the movement length of the slide bar 26, so as to meet the overall cleaning of the inner wall of the mixing barrel 11 as much as possible. Specifically, the number of blades can be selected according to the length of the mixing barrel 11.

[0048] As a preferred embodiment, on the basis of the above method, further, the driving mechanism 30 includes a driving motor 31 fixedly connected to the support frame 10, the output end of the driving motor 31 is fixedly connected to the driving shaft 32, the side wall of the driving shaft 32 is fixedly connected to the gear 1 33, the outer wall of the gear 1 33 is meshed with the gear 2 34, the gear 2 34 is fixedly connected to the outer wall of the hollow stirring steel pipe 12, and the driving motor 31 can drive the driving shaft 32 to rotate when it is working, and the rotation of the driving shaft 32 drives the gear 1 33 and the gear 2 34 to rotate, thereby driving the hollow stirring steel pipe 12 to rotate.

[0049] As a preferred embodiment, on the basis of the above-mentioned method, further, the crushing mechanism 60 includes a crushing motor 61 fixedly connected to the steel frame 40, the output end of the crushing motor 61 is fixedly connected to a disc 62, the side wall of the disc 62 is rotatably connected to an eccentric shaft 63, the outer wall of the eccentric shaft 63 is rotatably connected to an impact pile 64, one end of the impact pile 64 is rotatably connected to an impact hammer 65, the crushing mechanism 60 also includes a crushing cone 66 installed on the inner side wall of the feed box 50, and the bottom of the impact pile 64 is also fixedly connected to a toggle rod 67, and the crushing motor 61 can work to bring The movable disc 62 rotates, and the disc 62 and the eccentric shaft 63 rotate synchronously for one circle to drive the impact pile 64 to reciprocate once. When the impact hammer 65 moves, it can directly push the raw material to hit the crushing cone 66, so as to crush the raw material. The side wall of the support frame 10 is also fixedly connected to the U-shaped bridge 71, and the middle part of the U-shaped bridge 71 is rotatably connected to the pendulum 70. When the pendulum 70 flips and falls relative to the U-shaped bridge 71, it contacts and cooperates with the stirring mechanism 20. When the impact pile 64 moves, it can drive the toggle rod 67 to push the pendulum 70 to move. When the bottom of the pendulum 70 hits the slide bar 26, it pushes the slide bar 26 to move.

[0050] Specifically, when the fully enclosed ready-mixed concrete mixing device is working / in use: a discharge pipe 16 is provided at the bottom of the mixing barrel 11 for easy unloading. When unloading is required, the opening and closing valve plate 171 is opened. Specifically, the clamping rod 173 is pressed to cause the spring 174 to contract, and the clamping rod 173 is disengaged from the clamping disc 175, and the opening and closing valve plate 171 can be rotated. When the adjustment is completed and the valve is closed, the clamping rod 173 is automatically released, and the clamping rod 173 is automatically reset under the elastic potential energy of the spring 174, so that the closing can be completed by clamping and fixing. A cleaning cover 13 is provided on the side wall of the mixing barrel 11 for easy cleaning of the mixing barrel 11. When the mixing barrel 11 needs to be cleaned, the lock buckle 14 is opened and the cleaning cover 13 is flipped over to clean the mixing barrel 11. The driving motor 31 works to drive the driving shaft 32 to rotate, thereby driving the gear 1 33 to mesh with the gear 2 34 enables the hollow stirring steel pipe 12 and the stirring mechanism 20 to stir in the stirring barrel 11. When the slide bar 26 slides horizontally, the push rod 21 can drive the swing rod 22 to swing, so that multi-angle stirring and mixing can be carried out. Compared with the traditional stirring method, it is more flexible. At the same time, when the slide bar 26 slides horizontally, it can also drive the scraper 28 to clean the inside of the stirring barrel 11 to avoid the accumulation of concrete on the inner wall of the stirring barrel 11. The crushing motor 61 can drive the disc 62 to drive the impact pile 64 to intermittently push the raw materials to resist the impact hammer 65, thereby crushing the raw materials to ensure that the raw materials meet the use size. At the same time, when the impact pile 64 moves, it will also drive the toggle rod 67 to move and overturn the impact hammer 65. When the impact hammer 65 automatically falls, it can impact the slide bar 26, thereby cooperating with the stirring mechanism 20 as the driving force for the deformation of the stirring mechanism 20.

[0051] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A fully enclosed ready-mixed concrete mixing device, characterized in that: The invention comprises a support frame (10), a stirring barrel (11) is fixedly mounted on the top of the support frame (10), a hollow stirring steel pipe (12) is rotatably connected to one side of the stirring barrel (11) via a bearing, and a stirring mechanism (20) is connected to one end of the hollow stirring steel pipe (12) that penetrates into the stirring barrel (11), and further comprises: A driving mechanism (30), the driving mechanism (30) being connected to one end of the support frame (10) and being used to drive the hollow stirring steel pipe (12) to drive the stirring mechanism (20) to stir and mix the concrete raw materials inside the stirring barrel (11); A steel frame (40) is erected on the peripheral side of the support frame (10) and is higher than the support frame (10); A feed box (50) is fixedly mounted on the top of the steel frame (40), and comprises a feed pipe (51) connected to the top and a discharge pipe (52) connected to the bottom, wherein the discharge pipe (52) is connected to the mixing barrel (11), and a discharge port (53) is provided at the position where the feed box (50) is connected to the discharge pipe (52), and a plurality of steel plates (54) are connected to the inner side wall of the discharge port (53), and the gap between the two steel plates (54) allows raw materials that meet the size to enter the mixing barrel (11) through the discharge pipe (52); The crushing mechanism (60) is installed on one side of the top of the steel frame (40) and extends to the inside of the feed box (50), and is used to crush the raw materials in the feed box (50).

2. A fully enclosed ready-mixed concrete mixing device according to claim 1, characterized in that: The side wall of the mixing barrel (11) is rotatably connected with a cleaning cover (13), and a lock buckle (14) is also arranged at a position of the side wall of the mixing barrel (11) close to the cleaning cover (13), and a lock frame (15) adapted to the lock buckle (14) is installed on the cleaning cover (13).

3. A fully enclosed ready-mixed concrete mixing device according to claim 1, characterized in that: The bottom of the mixing barrel (11) is connected to a discharge pipe (16), and a side wall of the discharge pipe (16) is installed with an opening and closing component (17).

4. A fully enclosed ready-mixed concrete mixing device according to claim 3, characterized in that: The opening and closing component (17) includes an opening and closing valve plate (171) rotatably connected to the side wall of the discharge pipe (16); one end of the opening and closing valve plate (171) passes through the discharge pipe (16) and is fixedly connected to an adjustment handle (172); the side wall of the adjustment handle (172) is rotatably connected to a clamping rod (173); a spring (174) is fixedly connected between the clamping rod (173) and the adjustment handle (172); the side wall of the discharge pipe (16) is also fixedly connected to a chuck (175); the clamping rod (173) can be clamped in a clamping groove on the side wall of the chuck (175).

5. A fully enclosed ready-mixed concrete mixing device according to claim 1, characterized in that: The stirring mechanism (20) comprises a push rod (21) rotatably connected to the side wall of the hollow stirring steel pipe (12), one end of the push rod (21) is rotatably connected to a swing rod (22), one end of the swing rod (22) is fixedly connected to a stirring rod (23), the outer wall of one stirring rod (23) is fixedly connected to a plurality of plate-type stirring blades (24), and the outer wall of another stirring rod (23) is fixedly connected to a spiral stirring blade (25), and the stirring mechanism (20) further comprises a sliding rod (26) spline-slidably connected to the inner wall of the hollow stirring steel pipe (12), and the swing rod (22) is rotatably connected to the sliding rod (26).

6. A fully enclosed ready-mixed concrete mixing device according to claim 5, characterized in that: The side wall of the slide bar (26) is also fixedly connected to a truss (27), and the top of the truss (27) is also fixedly connected to a scraper (28), and the cross-section of the scraper (28) is a right triangle so as to fit the inner wall of the mixing barrel (11). The end of the slide bar (26) passing through the hollow mixing steel pipe (12) is fixedly connected to a spring 2 (29), and the spring 2 (29) is fixedly connected to the hollow mixing steel pipe (12).

7. A fully enclosed ready-mixed concrete mixing device according to claim 6, characterized in that: The driving mechanism (30) comprises a driving motor (31) fixedly connected to the support frame (10); the output end of the driving motor (31) is fixedly connected to a driving shaft (32); the side wall of the driving shaft (32) is fixedly connected to a gear 1 (33); the outer wall of the gear 1 (33) is meshed with a gear 2 (34); and the gear 2 (34) is fixedly connected to the outer wall of the hollow stirring steel pipe (12).

8. A fully enclosed ready-mixed concrete mixing device according to claim 1, characterized in that: The crushing mechanism (60) includes a crushing motor (61) fixedly connected to a steel frame (40), the output end of the crushing motor (61) is fixedly connected to a disc (62), the side wall of the disc (62) is rotatably connected to an eccentric shaft (63), the outer wall of the eccentric shaft (63) is rotatably connected to an impact pile (64), one end of the impact pile (64) is rotatably connected to an impact hammer (65), the crushing mechanism (60) also includes a crushing cone (66) installed on the inner wall of the feed box (50), and the bottom of the impact pile (64) is also fixedly connected to a toggle rod (67).

9. A fully enclosed ready-mixed concrete mixing device according to claim 8, characterized in that: The side wall of the support frame (10) is also fixedly connected to a U-shaped bridge (71), and the middle part of the U-shaped bridge (71) is rotatably connected to a pendulum (70), and when the pendulum (70) flips and falls relative to the U-shaped bridge (71), it contacts and cooperates with the stirring mechanism (20).

Images