Concrete mixer facilitating discharge

Abstract

The utility model discloses a concrete mixer convenient to discharge, including stirring drum, be provided with the stirring subassembly for stirring concrete in the stirring drum, the feeding port is established to the stirring drum upside, the discharge pipe is passed to the communication of stirring drum downside, be provided with the discharge valve on the discharge pipe, the discharge pipe outside surface is established to have two left and right symmetry and set up's lifting cavity, two lifting cavities are provided with screw shaft and guide shaft respectively, the screw shaft rotation is connected in the lifting cavity, the discharge cylinder is screwed on the screw shaft, the discharge cylinder is connected on the guide shaft and slides, the discharge pipe outside surface rotation is connected with the rotating shaft, the rotating shaft one end extends to the lifting cavity and is engaged with screw shaft through bevel gear mechanism, the rotating shaft other end extends to the outside and is connected with the handle, the utility model has the advantage that the discharge height is adjusted.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete mixers and relates to a concrete mixer that facilitates material discharge. Background Technology

[0002] A concrete mixer is a machine that mixes cement, sand and gravel aggregates and water to produce concrete mixture. It mainly consists of a mixing drum, feeding and unloading mechanism, water supply system, prime mover, transmission mechanism, frame and support device.

[0003] Chinese utility model patent CN220113655U discloses a concrete mixer, including a housing and a support frame. A discharge pipe is installed in the middle of the lower end of the housing, and a top cover is installed on the upper end of the housing. A motor is fixedly installed in the middle of the top of the top cover. A mixing shaft is located in the middle of the interior of the housing. A feed hopper passes through the top of the top cover near the motor, and a water inlet valve passes through the top of the top cover near the motor. Hydraulic cylinders are installed at both ends of the top of the top cover near the motor. The support frame is an A-shaped frame with spaced intervals. A swing shaft is installed at the upper end of each support frame. A reducer is fixedly installed on one side of the support frame, and a crank handle is rotatably installed outside the reducer. This technical solution allows adjustment of the housing's tilt angle through the crank handle, reducer, and swing shaft, enabling workers to quickly pour powder into the mixing drum for mixing. However, this technical solution cannot adjust the discharge height of the concrete mixer according to the height of the worker's receiving truck, which may cause inconvenience for workers when receiving concrete. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a concrete mixer that facilitates material discharge, effectively solving the issues in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A concrete mixer for easy material discharge includes a mixing drum, a mixing component for mixing concrete is provided inside the mixing drum, a feed inlet is provided on the upper side of the mixing drum, a discharge pipe is connected to the lower side of the mixing drum, a discharge valve is provided on the discharge pipe, a discharge cylinder located below the discharge valve is slidably connected to the outer side of the discharge pipe, two symmetrically arranged lifting chambers are provided on the outer side of the discharge pipe, a threaded shaft and a guide shaft are respectively provided in the two lifting chambers, the threaded shaft is rotatably connected to the lifting chamber, the discharge cylinder is threadedly connected to the threaded shaft, the discharge cylinder is slidably connected to the guide shaft, a rotating shaft is rotatably connected to the outer side of the discharge pipe, one end of the rotating shaft extends into the lifting chamber and meshes with the threaded shaft through a bevel gear mechanism, and the other end of the rotating shaft extends to the outside and is connected to a handle.

[0006] Furthermore, the gripping end of the handle is covered with a rubber sleeve.

[0007] Furthermore, a scraper ring is provided on the lower side of the discharge pipe. The cross-section of the scraper ring is a right triangle, and the two right-angled sides of the right triangle are respectively attached to the lower side of the discharge pipe and the inner side of the discharge cylinder.

[0008] Furthermore, a screw conveyor is provided on one side of the mixing drum, and the discharge end of the screw conveyor is connected to the feed inlet.

[0009] Furthermore, the stirring assembly includes a stirring shaft rotatably connected inside the stirring drum, a plurality of stirring blades being provided on the stirring shaft, a stirring motor being provided on the upper side of the stirring drum, and the output shaft of the stirring motor being connected to the stirring shaft.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention achieves adjustable discharge height of the concrete mixer through a discharge cylinder, threaded shaft, handle, guide shaft, and bevel gear mechanism, preventing splashing during discharge and improving the convenience of discharge. A screw conveyor enables rapid material loading, enhancing the convenience for operators. The mixing components ensure reliable operation of the concrete mixer. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This utility model Figure 1 A magnified view of part A;

[0014] Figure 3 This is a front view of the present utility model.

[0015] In the diagram: 1. Mixing drum; 101. Feed inlet; 102. Discharge pipe; 2. Mixing shaft; 3. Mixing blade; 4. Mixing motor; 5. Screw conveyor; 6. Discharge valve; 7. Discharge cylinder; 8. Threaded shaft; 9. Guide shaft; 10. Rotating shaft; 11. Scraper ring; 12. Handle; 13. Rubber sleeve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 3 As shown, a concrete mixer for easy material discharge includes a mixing drum 1, a mixing assembly for mixing concrete is installed inside the mixing drum 1, a feed inlet 101 is opened on the upper side of the mixing drum 1, a discharge pipe 102 is connected to the lower side of the mixing drum 1, a discharge valve 6 is installed on the discharge pipe 102 by bolts, a discharge cylinder 7 located below the discharge valve 6 is slidably connected to the outer side of the discharge pipe 102 by a slider and a slide groove, and two symmetrically arranged lifting chambers are opened on the outer side of the discharge pipe 102. A threaded shaft 8 and a guide shaft 9 are respectively installed in the two lifting chambers. The threaded shaft 8 is rotatably connected to the lifting chamber by a bearing, the discharge cylinder 7 is threadedly connected to the threaded shaft 8, and the discharge cylinder 7 is slidably connected to the guide shaft 9. A rotating shaft 10 is rotatably connected to the outer side of the discharge pipe 102 by a bearing. One end of the rotating shaft 10 extends into the lifting chamber and meshes with the threaded shaft 8 through a bevel gear mechanism, and the other end of the rotating shaft 10 extends to the outside and is connected to a handle 12.

[0018] During use, the operator pours concrete raw materials into the mixing drum 1 through the feed inlet 101, and the concrete is mixed by the mixing components inside the mixing drum 1. After mixing, the operator can drive the rotating shaft 10 to rotate by the handle 12. Under the action of the bevel gear mechanism, the rotating shaft 10 can drive the threaded shaft 8 to rotate synchronously. At the same time, under the action of the thread, the threaded shaft 8 can drive the mixing drum 1 to move up and down along the guide shaft 9 on the outer side of the discharge pipe 102, thereby realizing the adjustment of the discharge height of the concrete mixer, preventing the concrete mixer from splashing due to excessive discharge height, and improving the convenience of the operator when discharging concrete. After adjustment, the operator can open the discharge valve 6 to discharge the concrete.

[0019] In this embodiment, the gripping end of the handle 12 is covered with a rubber sleeve 13. When in use, the rubber sleeve 13 increases the friction when the operator grips the handle 12, preventing the operator from slipping out of their hand when rotating the handle 12.

[0020] In this embodiment, a scraper ring 11 is welded to the lower side of the discharge pipe 102. The cross-section of the scraper ring 11 is a right triangle, and the two right-angled sides of the right triangle are respectively attached to the lower side of the discharge pipe 102 and the inner side of the discharge cylinder 7. In use, the scraper ring 11 can scrape off the residual concrete on the inner side of the discharge cylinder 7, preventing the concrete on the inner side of the discharge cylinder 7 from affecting the up and down sliding of the discharge cylinder 7.

[0021] In this embodiment, a screw conveyor 5 is provided on one side of the mixing drum 1. The discharge end of the screw conveyor 5 is connected to the feed inlet 101. During use, workers can pour concrete raw materials into the screw conveyor 5, which is then transported to the feed inlet 101 under the action of the screw conveyor 5, improving the convenience of workers when loading materials. At the same time, the screw conveyor is existing technology, including a shell, a screw conveyor shaft, a feed hopper, a discharge port, and a rotating motor. Its specific structure and working principle are existing technologies and will not be described in detail here.

[0022] In this embodiment, the mixing assembly includes a mixing shaft 2 that is rotatably and sealed within the mixing drum 1 via a sealed bearing. Multiple mixing blades 3 are welded onto the mixing shaft 2. A mixing motor 4 is bolted to the upper side of the mixing drum 1. The output shaft of the mixing motor 4 is connected to the mixing shaft 2. During use, the operator can drive the mixing shaft 2 to rotate via the mixing motor 4, and the concrete raw materials in the mixing drum 1 are mixed under the action of the mixing blades 3, ensuring the reliability of the concrete mixer during use.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete mixer for easy material discharge, comprising a mixing drum, wherein a mixing assembly for mixing concrete is disposed inside the mixing drum, a feed inlet is provided on the upper side of the mixing drum, a discharge pipe is connected to the lower side of the mixing drum, and a discharge valve is provided on the discharge pipe, characterized in that: The discharge pipe has a discharge cylinder slidably connected to its outer side below the discharge valve. The outer side of the discharge pipe has two symmetrically arranged lifting chambers. A threaded shaft and a guide shaft are respectively installed in the two lifting chambers. The threaded shaft is rotatably connected to the lifting chamber. The discharge cylinder is threadedly connected to the threaded shaft and slidably connected to the guide shaft. A rotating shaft is rotatably connected to the outer side of the discharge pipe. One end of the rotating shaft extends into the lifting chamber and meshes with the threaded shaft through a bevel gear mechanism. The other end of the rotating shaft extends to the outside and is connected to a handle.

2. The concrete mixer for easy material discharge according to claim 1, characterized in that: The gripping end of the handle is covered with a rubber sleeve.

3. A concrete mixer for easy material discharge according to claim 1, characterized in that: A scraper ring is provided on the lower side of the discharge pipe. The cross-section of the scraper ring is a right triangle, and the two right-angled sides of the right triangle are respectively attached to the lower side of the discharge pipe and the inner side of the discharge cylinder.

4. A concrete mixer for easy material discharge according to claim 1, characterized in that: A screw conveyor is provided on one side of the mixing drum, and the discharge end of the screw conveyor is connected to the feed inlet.

5. A concrete mixer for easy material discharge according to claim 1, characterized in that: The stirring assembly includes a stirring shaft rotatably connected inside a stirring drum, a plurality of stirring blades being provided on the stirring shaft, a stirring motor being provided on the upper side of the stirring drum, and the output shaft of the stirring motor being connected to the stirring shaft.

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