Cement paste stirrer

Abstract

The utility model relates to the technical field of civil engineering experimental equipment, and discloses a cement paste stirrer which comprises an outer shell, a supporting assembly is arranged at the bottom of the outer shell, a rotating column is rotationally connected to the outer wall of the outer shell, a telescopic rod is fixedly connected to the inner wall of the rotating column, a spring is arranged on the outer wall of the telescopic rod in a sleeved mode, and the outer wall of the telescopic rod is fixedly connected with the rotating column. One end of the spring is fixedly connected to the inner wall of the rotating column, the other end of the spring is fixedly connected with an upper toothed plate, the outer wall of the upper toothed plate is fixedly connected with a sliding sleeve, and the outer wall of the sliding sleeve is slidably connected to the outer wall of the rotating column. According to the utility model, the sliding sleeve is firstly pulled to drive the upper toothed plate to move upwards, so that the problem that the stirring efficiency and the mixing quality are influenced due to the fact that the stirring blades are difficult to replace after long-time use is solved, and the stirring blades are rapidly replaced, thereby ensuring the stirring effect and improving the uniformity of a mixture and the quality of concrete.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering experimental equipment, in particular to a cement slurry mixer. Background Art

[0002] Cement slurry mixer is a mechanical equipment used to evenly mix raw materials such as cement, sand, and gravel in the process of preparing cement concrete. It usually consists of a mixing tank, a mixing blade (mixing arm), a drive device, a control system, etc. The mixing blade is a key component in the mixer. It is in direct contact with the raw materials and is responsible for effectively mixing cement, sand, gravel and other materials. In order to ensure the mixing efficiency, mixing quality and safe operation of the equipment, it is necessary to regularly check the status of the mixing blade and replace it when necessary.

[0003] After searching, a dustproof cement mortar mixer is disclosed in the announcement number: CN207682665U, which relates to the technical field of civil engineering experimental equipment. The dustproof cement mortar mixer includes a cement mortar mixer body, characterized in that a column is arranged on one side of the cement mortar mixer body, a groove track is arranged on the lower chassis of the cement mortar mixer body, an arc-shaped connecting rod is fixed on the upper part of the column, one side of the dust cover is fixed in the column, the upper part of the dust cover is connected to the connecting rod through a pull ring, and the lower part can move along the groove track, can be stretched and unfolded, and can be compressed and folded. In addition, the inner wall of the mixing pot of the cement mortar mixer is coated with an anti-sticking material. The advantage of the utility model is that a retractable and foldable dust-proof device is arranged on one side of the cement mortar mixer body. The dust-proof device has a simple structure, is easy to operate, has strong practicality, and has a low manufacturing cost. It can prevent the dust generated by the cement mortar mixer during mixing from floating into the air, which can effectively prevent the dust generated during feeding and mixing from endangering human health, and keep the laboratory environment clean and tidy. In this application, an arc-shaped connecting rod is used in conjunction with a dust cover and other structures to avoid the dust generated during feeding and mixing during the experiment from endangering human health. It is provided that long-term use and contact with hard materials will cause wear or even damage to the stirring blades, and it is difficult to replace the stirring blades, which will affect the stirring efficiency and mixing quality, reduce the stirring efficiency, and cause the stirring time to be extended, affecting the production efficiency. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a cement slurry mixer, which aims to improve the problem that it is difficult to replace the stirring blades, which will affect the stirring efficiency and mixing quality, reduce the stirring efficiency, increase the stirring time, and affect the production efficiency.

[0005] The top end of the driving member is a chain which has a first end fixed to the bottom of the gear and a second end in contact with the gear of the driving member, the first end of the driving member being a chain which has a first end fixed to the bottom of the gear and a second end in contact with the gear.

[0006] By means of the above technical scheme, the sliding sleeve is first moved upward, so that the upper tooth plate rises and disengages from the lower tooth plate, and at the same time the spring contracts, driving the rotating sleeve to rotate, driving the lower tooth plate to rotate, and then causing the rotating plate to rotate in the rotating column. The rotation of the rotating plate causes the slide bar at one end of the block to slide in the arc-shaped slide groove inside it, thereby driving the block to move between the rotating column and the mounting seat. When the block is completely moved into the rotating column, the stirring blade can be removed. When installing, only the mounting seat needs to be put back in place, the rotating sleeve needs to be rotated in the opposite direction to reposition the block, and then the sliding sleeve needs to be released. The spring rebounds to cause the upper tooth plate to re-engage with the lower tooth plate, thereby completing the disassembly, assembly and replacement of the stirring blade.

[0007] Furthermore, the support assembly includes a fixed base, and the upper surface of the fixed base is fixedly connected to the bottom of the outer shell.

[0008] Through the above technical solution, the outer shell is supported by the fixed base in the support assembly.

[0009] Furthermore, a rotating rod is rotatably connected inside the outer shell, and one end of the rotating rod is fixedly connected to a worm.

[0010] Through the above technical solution, driving the rotating rod will drive the worm to rotate.

[0011] Furthermore, a worm gear is rotatably connected inside the outer shell, and the worm gear is meshed with the worm.

[0012] Through the above technical solution, the rotation of the worm will drive the worm wheel to rotate.

[0013] Furthermore, the outer wall of the worm wheel is fixedly connected with a cam wheel, and the outer wall of the cam wheel is rotatably connected to the inside of the outer shell.

[0014] Through the above technical solution, the rotation of the worm wheel drives the cam wheel to rotate inside the outer shell.

[0015] Furthermore, a belt is provided on the outer wall of the cam, and a screw is fixedly connected to the inside of the cam.

[0016] Through the above technical solution, the cam wheels on both sides are rotated synchronously through the belt.

[0017] Furthermore, both ends of the screw are rotatably connected to the interior of the outer shell, and the outer wall of the screw is threadedly connected with a sliding sleeve.

[0018] Through the above technical solution, the concave wheel drives the screw to rotate while the sliding sleeve slides on the outer wall of the screw.

[0019] Furthermore, the outer wall of the sliding sleeve is fixedly connected to a support, and the outer wall of the support is fixedly connected to a stirring tank.

[0020] Through the above technical solution, the movement of the sliding sleeve drives the mixing tank to move up and down through the support.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, firstly, the sliding sleeve is pulled to drive the upper tooth plate to move upward, and then the rotating sleeve is rotated to cooperate with the telescopic rod, the spring, the lower tooth plate, and the rotating plate to drive the clamping block to slide inside the rotating column and the mounting seat, thereby realizing the replacement of the stirring blades. The problem that it is difficult to replace the stirring blades after long-term use, which affects the stirring efficiency and mixing quality, is solved, and the stirring blades can be quickly replaced, thereby ensuring the stirring effect and improving the uniformity of the mixture and the quality of the concrete.

[0023] 2. In the utility model, the rotating rod is first driven to drive the worm to rotate inside the outer shell, and then the worm wheel, concave wheel, belt, screw, sleeve and support are coordinated to drive the mixing tank to move up and down, thereby achieving the height adjustment of the mixing tank, increasing the flexibility of the mixer, and enabling it to adapt to a variety of different production requirements and occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a cement slurry mixer proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the upper part of the mixing blade of a cement slurry mixer proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of a rotating column of a cement slurry mixer proposed by the utility model;

[0027] Figure 4The utility model is a schematic diagram of the internal structure of the outer shell of a cement slurry mixer.

[0028] Legend:

[0029] 1. Outer shell; 2. Fixed base; 3. Rotating column; 4. Telescopic rod; 5. Spring; 6. Upper tooth plate; 7. Sliding sleeve; 8. Rotating sleeve; 9. Rotating plate; 10. Block; 11. Mounting seat; 12. Stirring blade; 13. Rotating rod; 14. Worm; 15. Worm wheel; 16. Concave wheel; 17. Belt; 18. Screw; 19. Sliding sleeve; 20. Support; 21. Stirring tank; 22. Lower tooth plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 - Figure 3 , an embodiment provided by the utility model: a cement slurry mixer, comprising an outer shell 1, a supporting assembly is arranged at the bottom of the outer shell 1, the outer wall of the outer shell 1 is rotatably connected with a rotating column 3, the inner wall of the rotating column 3 is fixedly connected with a telescopic rod 4, the outer wall sleeve of the telescopic rod 4 is provided with a spring 5, one end of the spring 5 is fixedly connected to the inner wall of the rotating column 3, the other end of the spring 5 is fixedly connected with an upper tooth plate 6, the outer wall of the upper tooth plate 6 is fixedly connected with a sliding sleeve 7, the outer wall of the sliding sleeve 7 is slidably connected to the outer wall of the rotating column 3, the outer wall of the rotating column 3 is rotatably connected with a rotating sleeve 8, the inner wall of the rotating sleeve 8 is fixedly connected with a lower tooth plate 22, the lower tooth plate 22 is meshed with the upper tooth plate 6, the interior of the lower tooth plate 22 is fixedly connected with a rotating plate 9, the interior of the rotating plate 9 is slidably connected with a card block 10, the outer wall of the card block 10 is slidably connected with a mounting seat 11, the lower surface of the mounting seat 11 is fixedly connected with a stirring blade 12, the supporting assembly comprises a fixed base 2, the upper surface of the fixed base 2 is fixedly connected to the bottom of the outer shell 1;

[0032] Specifically, first pull the sliding sleeve 7 to move upward, causing the upper toothed plate 6 to rise along with the movement of the sliding sleeve 7, thereby releasing the meshing with the lower toothed plate 22. At the same time, the spring 5 above the upper toothed plate 6 is compressed and shrinks. When the lower toothed plate 22 is no longer constrained by the upper toothed plate 6, the lower toothed plate 22 can be rotated by driving the rotating sleeve 8, thereby driving the rotating plate 9 to rotate inside the rotating column 3. The rotation of the rotating plate 9 causes the slide bar at one end of the block 10 to slide in the arc-shaped slide groove inside the rotating plate 9, thereby guiding the block 10 to move between the rotating column 3 and the mounting seat 11. When the block 10 is completely moved to the inside of the rotating column 3, the mounting seat 11 and the stirring blade 12 can be easily removed. When reinstalling, just put the mounting seat 11 back to its original position, and then drive the rotating sleeve 8 to rotate in the opposite direction to move the block 10 back to the inside of the mounting seat 11. After the positioning of the mounting seat 11 is completed, the sliding sleeve 7 can be released. At this time, the spring 5 is no longer stressed and will rebound to its original state, thereby driving the upper tooth plate 6 to re-engage the teeth of the lower tooth plate 22. In this way, the disassembly, assembly and replacement of the stirring blade 12 are completed, ensuring the normal operation of the mixer and the quality of concrete mixing.

[0033] Reference Figure 1 and Figure 4 The outer shell 1 is rotatably connected with a rotating rod 13, one end of the rotating rod 13 is fixedly connected with a worm 14, the outer shell 1 is rotatably connected with a worm wheel 15, the worm wheel 15 is meshed with the worm 14, the outer wall of the worm wheel 15 is fixedly connected with a concave wheel 16, the outer wall of the concave wheel 16 is rotatably connected to the inside of the outer shell 1, the outer wall of the concave wheel 16 is provided with a belt 17, the inside of the concave wheel 16 is fixedly connected with a screw 18, both ends of the screw 18 are rotatably connected to the inside of the outer shell 1, the outer wall of the screw 18 is threadedly connected with a sleeve 19, the outer wall of the sleeve 19 is fixedly connected with a support 20, and the outer wall of the support 20 is fixedly connected with a mixing tank 21;

[0034] Specifically, the driving rotating rod 13 rotates, so that the worm 14 starts to rotate. Due to the meshing between the worm 14 and the worm wheel 15, the worm wheel 15 will also rotate with the rotation of the worm 14. The rotation of the worm wheel 15 is further transmitted to the cam wheel 16, which also starts to rotate. With the rotation of the cam wheel 16, the belt 17 connected thereto is also driven to rotate, so that the cam wheel 16 on the other side can achieve synchronous rotation. The synchronously rotating cam wheel 16 then drives the two screws 18 to rotate synchronously. The rotation of the screw 18 makes the sleeve 19 move up and down on the outer wall of the screw 18. The movement of the sleeve 19 then drives the support 20 to move up and down. The up and down movement of the support 20 finally makes the mixing tank 21 move up and down, thereby achieving the purpose of adjusting the height of the mixing tank 21, so that the height of the mixing tank 21 can be adjusted according to different mixing requirements, optimize the mixing effect, and also facilitate the maintenance and cleaning of the mixing tank 21.

[0035] Working principle: When the cement slurry mixer needs to be used, first pull the sliding sleeve 7 to move upward, thereby driving the upper tooth plate 6 to move upward and no longer mesh with the lower tooth plate 22, and at the same time make the spring 5 above the upper tooth plate 6 shrink, and then the lower tooth plate 22 is no longer bound, and the lower tooth plate 22 is driven to rotate by driving the rotating sleeve 8, thereby driving the rotating plate 9 to rotate inside the rotating column 3, and then through the rotation of the rotating plate 9, the sliding rod at one end of the block 10 slides in the arc-shaped slide groove inside the rotating plate 9, thereby driving the block 10 to slide inside the rotating column 3 and the mounting seat 11. When the block 10 is completely moved to the inside of the rotating column 3, the mounting seat 11 and the stirring blade 12 can be removed. When installing, you only need to put the mounting seat 11 back to its original position, and then rotate the rotating sleeve 8 in the opposite direction to drive the block 10 Move it back to the inside of the mounting seat 11, then loosen the sliding sleeve 7. At this time, the spring 5 is no longer stressed and rebounds, driving the upper tooth plate 6 to be re-stuck in the teeth of the lower tooth plate 22, achieving the effect of disassembling and replacing the stirring blade 12, and then drive the rotating rod 13 to rotate inside the outer shell 1, thereby driving the worm 14 to rotate. Due to the meshing of the worm 14 and the worm wheel 15, the worm wheel 15 rotates with the rotation of the worm 14, thereby driving the cam 16 to rotate, and then the rotation of the cam wheel 16 drives the belt 17 to rotate, thereby driving the cam wheel 16 on the other side to rotate synchronously, and then driving the two screws 18 to rotate synchronously, so that the sliding sleeve 19 drives the support 20 to move up and down on the outer wall of the screw 18, thereby driving the stirring tank 21 to move up and down, achieving the effect of adjusting the height of the stirring tank 21.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cement paste mixer, comprising an outer shell (1), characterized in that: A support assembly is provided at the bottom of the outer shell (1); the outer wall of the outer shell (1) is rotatably connected to a rotating column (3); the inner wall of the rotating column (3) is fixedly connected to a telescopic rod (4); the outer wall of the telescopic rod (4) is sleeved with a spring (5); one end of the spring (5) is fixedly connected to the inner wall of the rotating column (3); the other end of the spring (5) is fixedly connected to an upper toothed plate (6); the outer wall of the upper toothed plate (6) is fixedly connected to a sliding sleeve (7); the outer wall of the sliding sleeve (7) is slidably connected to the inner wall of the rotating column (3); The outer wall of the rotating column (3) is rotatably connected to a rotating sleeve (8), the inner wall of the rotating sleeve (8) is fixedly connected to a lower tooth plate (22), the lower tooth plate (22) is meshed with the upper tooth plate (6), the interior of the lower tooth plate (22) is fixedly connected to a rotating plate (9), the interior of the rotating plate (9) is slidably connected to a clamping block (10), the outer wall of the clamping block (10) is slidably connected to a mounting seat (11), and the lower surface of the mounting seat (11) is fixedly connected to a stirring blade (12).

2. A cement slurry mixer according to claim 1, characterized in that: The support assembly comprises a fixed base (2), the upper surface of the fixed base (2) being fixedly connected to the bottom of the outer shell (1).

3. A cement slurry mixer according to claim 1, characterized in that: A rotating rod (13) is rotatably connected inside the outer shell (1), and one end of the rotating rod (13) is fixedly connected to a worm (14).

4. A cement slurry mixer according to claim 3, characterized in that: A worm wheel (15) is rotatably connected to the interior of the outer shell (1), and the worm wheel (15) is meshed with the worm (14).

5. A cement slurry mixer according to claim 4, characterized in that: The outer wall of the worm wheel (15) is fixedly connected to a cam wheel (16), and the outer wall of the cam wheel (16) is rotatably connected to the interior of the outer shell (1).

6. A cement paste mixer according to claim 5, characterized in that: The outer wall of the cam wheel (16) is provided with a belt (17), and the interior of the cam wheel (16) is fixedly connected with a screw rod (18).

7. A cement paste mixer according to claim 6, characterized in that: Both ends of the screw rod (18) are rotatably connected to the interior of the outer shell (1), and a sliding sleeve (19) is threadedly connected to the outer wall of the screw rod (18).

8. A cement paste mixer according to claim 7, characterized in that: The outer wall of the sliding sleeve (19) is fixedly connected to a support (20), and the outer wall of the support (20) is fixedly connected to a stirring tank (21).

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