Double-shaft horizontal concrete mixer convenient to clean

The design, which uses a hydraulic cylinder and a motor to drive the mixing shaft, solves the problem of fixed discharge position in existing technologies, enabling efficient concrete collection and equipment cleaning, and improving production efficiency and cleanliness.

CN223918312UActive Publication Date: 2026-02-17BEIJING XIAOHONGMEN CONCRETE CO LTD
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Patent Information

Application Number
CN202520505456.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-17
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Existing twin-shaft horizontal concrete mixers can only discharge concrete at a fixed location, resulting in time loss for construction vehicles to pick up the concrete and reducing concrete production efficiency.

Method used

A convenient twin-shaft horizontal concrete mixer was designed. The mixing shaft is driven by a hydraulic cylinder and a motor to rotate the discharge nozzle, which makes it easy for engineering vehicles to pick up concrete at different locations. It is also equipped with a high-pressure cleaning device to clean the adhering substances on the inner wall of the mixing drum.

Benefits of technology

This system enables engineering vehicles to pick up concrete at different locations, reducing queuing time, improving concrete production efficiency, and ensuring equipment cleanliness through a high-pressure cleaning device.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of concrete mixing, and discloses a double-shaft horizontal concrete mixer convenient to clean, which comprises a bottom plate, supporting columns are fixedly connected to the left side and the right side of the middle of the top wall of the bottom plate, mixing barrels are fixedly connected to the inner walls of the two supporting columns, and sliding grooves are formed in the front end and the rear end of the left side of the top wall of the bottom plate. And sliding feet are arranged on the inner walls of the two sliding grooves, fixing plates are fixedly connected to the top ends of the two sliding feet, a hydraulic cylinder is fixedly connected to the left side of the supporting column on the left side, and the output end of the hydraulic cylinder is fixedly connected to the inner walls of the fixing plates. According to the concrete stirring device, the stirring shaft is driven by the motor to rotate so that concrete can be fully stirred, and the discharging column is rotationally connected with the discharging bin, so that the discharging nozzle can rotate, a material receiving vehicle or personnel can receive materials at different positions conveniently, the time loss of receiving the concrete by an engineering vehicle is saved, and the production efficiency of the concrete is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to concrete mixing technical field especially, relates to a convenient cleaning biaxial horizontal concrete mixer. BACKGROUND

[0002] The biaxial horizontal concrete mixer is a large mechanical equipment used for mixing concrete. This design can ensure that the concrete is fully mixed, thereby improving the uniformity and quality of the concrete. This type of concrete mixer is used in places that require a large amount of concrete, such as large construction sites, concrete mixing stations, etc. Due to its efficient mixing capacity and stable working performance, it is widely used in construction, road, bridge and other engineering projects.

[0003] After searching, the Chinese patent publication No. CN209954967U discloses a biaxial horizontal concrete mixer including a mixing drum, a mixing shaft, a mixing arm, a blade, and a cleaning device. The mixing shaft is arranged in the mixing drum, the mixing arm is fixedly connected to the mixing shaft, the blade is connected to the mixing arm by bolts, and the cleaning device includes a pressure pump, an inlet pipe, an outlet pipe, and a high-pressure nozzle. The mixing shaft has a through hole in its peripheral wall, the outlet pipe is connected to the mixing shaft, the high-pressure nozzle is connected to the outlet pipe corresponding to the through hole, the pressure pump is connected to a water source through the inlet pipe, and the through hole and the high-pressure nozzle are arranged in one-to-one correspondence. The water pipe is connected to the mixing shaft through a fixing member. After the mixer is completed, there will be residual concrete in the mixer. At this time, the pressure pump is turned on to inject water into the water pipe. The pressure of the pressure pump will cause the water to be sprayed in the mixing drum through the high-pressure nozzle. The mixing shaft drives the water pipe to rotate through the fixing member, causing the high-pressure nozzle to rotate around the center line of the mixing shaft, thereby achieving cleaning of the mixer. The cleaning is convenient. However, the device can only discharge at a fixed location during discharging, and the engineering vehicle for receiving the concrete needs to reach the specified accurate position to receive the concrete, causing time loss of the engineering vehicle in receiving the concrete and reducing the production efficiency of the concrete. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides a biaxial horizontal concrete mixer for easy cleaning, aiming to improve the problem that only single discharging at a fixed location during discharging, thereby causing time loss of the engineering vehicle in receiving the concrete and reducing the production efficiency of the concrete.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a convenient cleaning double-shaft horizontal concrete mixer, including the bottom plate, the top wall middle part both sides of bottom plate are all fixedly connected with the support column, the inner wall of two support columns are all fixedly connected with the stirring drum, the top wall left side of bottom plate is all provided with the sliding groove, the inner wall of two sliding grooves are all provided with the sliding foot, the top of two sliding feet are all fixedly connected with the fixed plate, the left side of left side support column is fixedly connected with the hydraulic cylinder, the output of hydraulic cylinder is fixedly connected in the inner wall of fixed plate, the top wall front and back of fixed plate are all fixedly connected with motor, the output of two motors are all fixedly connected with the stirring shaft, the outer wall of two stirring shafts are all fixedly connected with the fixed disc, the top wall right side of fixed plate is fixedly connected with the push plate, the inner wall of push plate is rotatably connected with two fixed discs, two stirring shafts pass through the left and right sides of stirring drum, the right side of stirring drum is fixedly connected with the discharge bin, the bottom end of discharge bin is rotatably connected with the discharge column, the outer wall of discharge column is communicated with the discharge nozzle, the top wall middle part of bottom plate is provided with the cleaning device.

[0006] Through the above technical scheme: the approximate position of the concrete can be taken by the engineering vehicle or personnel at the discharge nozzle, and the time loss in the queue is reduced.

[0007] As a further description of the above technical scheme:

[0008] The cleaning device includes a water tank, the front side of the right support column is fixedly connected with a water pump, the output of the water pump is communicated with a water supply pipe, the input of the water supply pipe is communicated with the front right end of the water tank, the output of the water supply pipe is communicated with a pressure booster, the bottom end of the pressure booster is communicated with a spray main pipe, the front and back sides of the spray main pipe are communicated with a plurality of spray sub-pipes, the outputs of the plurality of spray sub-pipes are communicated with a rotary valve, and the outputs of the plurality of rotary valves are communicated with a spray head.

[0009] Through the above technical scheme: the water in the water tank is pumped into the pressure booster by the water pump, and the water after pressure boosting is sprayed at high pressure by the spray head, so that the concrete attached in the stirring drum can be cleaned.

[0010] As a further description of the above technical scheme:

[0011] The top left end of the bottom plate is fixedly connected with a control console, and a plurality of control buttons are fixedly installed on the top wall of the control console.

[0012] Through the above technical scheme: the control buttons installed on the control console can improve the work efficiency of the operator.

[0013] As a further description of the above technical scheme:

[0014] The escalator is fixedly connected to the front side of the top wall of the bottom plate.

[0015] Through the above technical scheme, the operator can reach the top wall of the stirring barrel through the escalator and overhaul and maintain the equipment on the top wall.

[0016] Further description of the above technical scheme:

[0017] The top wall left side of the stirring barrel is provided with a feeding groove, and the top end of the feeding groove is fixedly connected with a baffle.

[0018] Through the above technical scheme, when feeding through the feeding groove, the problem of splashing out of the stirring barrel caused by too large flow rate can be well solved by the baffle.

[0019] Further description of the above technical scheme:

[0020] The top wall of the stirring barrel is provided with a maintenance valve, and the top wall of the maintenance valve is fixedly connected with a handle.

[0021] Through the above technical scheme, the operator can check and maintain the equipment in the stirring barrel through the maintenance valve, and the handle is installed to facilitate opening of the maintenance valve.

[0022] Further description of the above technical scheme:

[0023] The front side right end of the water tank is provided with a water filling valve.

[0024] Through the above technical scheme, the water filling valve is used for filling water in the water tank, so that the equipment has enough water source for work.

[0025] Further description of the above technical scheme:

[0026] The front side top end of the water tank is fixedly connected with a pressure gauge.

[0027] Through the above technical scheme, the pressure gauge can detect the water pressure in the water tank, and the water amount in the water tank can be known through the pressure gauge.

[0028] The utility model has the advantages of:

[0029] 1. In this utility model, the support column stabilizes the mixing drum, and the motor drives the mixing shaft to rotate so that the concrete is fully mixed. The hydraulic cylinder pushes the fixed plate fixedly connected to the mixing shaft, so that the mixing shaft moves to the right and pushes the groove of the mixing shaft outside the right wall of the mixing drum, so that the concrete is concentrated and flows into the discharge column. The discharge column is rotatably connected to the discharge hopper, so that the discharge nozzle can rotate, which makes it convenient for receiving vehicles or personnel to receive materials at different positions, saving the time lost by engineering vehicles in receiving concrete and improving the production efficiency of concrete.

[0030] 2. In this utility model, a water pump supplies water from the water tank to the booster to increase the water pressure. A main spray pipe is connected below the booster, and multiple auxiliary spray pipes are connected to the front and rear sides of the main spray pipe. The output end of each auxiliary spray pipe is connected to a rotary valve for adjusting the angle of the nozzle, so that the entire mixing tank and the mixing shaft can be cleaned. Attached Figure Description

[0031] Figure 1 A front view of a twin-shaft horizontal concrete mixer that is easy to clean, as proposed in this utility model;

[0032] Figure 2 A perspective view of a convenient-to-clean twin-shaft horizontal concrete mixer proposed in this utility model;

[0033] Figure 3 This is a sectional view of a twin-shaft horizontal concrete mixer drum that is easy to clean, as proposed in this utility model.

[0034] Figure 4 This utility model presents a structural schematic diagram of a convenient method for cleaning the discharge column of a twin-shaft horizontal concrete mixer.

[0035] Legend:

[0036] 1. Base plate; 2. Cleaning device; 201. Water tank; 202. Water pump; 203. Water supply pipe; 204. Booster; 205. Main spray pipe; 206. Secondary spray pipe; 207. Rotary valve; 208. Sprayer head; 3. Support column; 4. Mixing tank; 5. Sliding groove; 6. Sliding foot; 7. Fixing plate; 8. Motor; 9. Mixing shaft; 10. Fixing plate; 11. Push plate; 12. Discharge hopper; 13. Discharge column; 14. Discharge nozzle; 15. Hydraulic cylinder; 16. Control console; 17. Control button; 18. Ladder; 19. Feeding trough; 20. Baffle; 21. Inspection valve; 22. Handle; 23. Water injection valve; 24. Pressure gauge. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0038] Reference Figure 2 , Figure 3 and Figure 4 This utility model provides an embodiment of a convenient-to-clean twin-shaft horizontal concrete mixer, comprising a base plate 1. Support columns 3 are fixedly connected to the left and right sides of the top wall of the base plate 1. A mixing drum 4 is fixedly connected to the inner walls of both support columns 3. Sliding grooves 5 are provided at the front and rear ends of the left side of the top wall of the base plate 1. Sliding feet 6 are provided on the inner walls of both sliding grooves 5. A fixing plate 7 is fixedly connected to the top of both sliding feet 6. A hydraulic cylinder 15 is fixedly connected to the left side of the left support column 3. The output end of the hydraulic cylinder 15 is fixedly connected to the inner wall of the fixing plate 7. Motors 8 are fixedly connected to the front and rear sides of the top wall. Stirring shafts 9 are fixedly connected to the output ends of the two motors 8. Fixed plates 10 are fixedly connected to the outer walls of the two stirring shafts 9. Pushing plates 11 are fixedly connected to the right side of the top wall of the fixed plate 7. The inner wall of the pushing plates 11 is rotatably connected to the two fixed plates 10. The two stirring shafts 9 pass through the left and right sides of the mixing tank 4. A discharge hopper 12 is fixedly connected to the right side of the mixing tank 4. A discharge column 13 is rotatably connected to the bottom end of the discharge hopper 12. A discharge nozzle 14 is connected to the outer wall of the discharge column 13. A cleaning device 2 is provided in the middle of the top wall of the bottom plate 1.

[0039] Specifically, the support column 3 is used to stabilize the mixing drum 4. The motor 8 drives the mixing shaft 9 to rotate, so that the concrete in the mixing drum 4 is fully mixed. After the mixing is completed, the hydraulic cylinder 15 pushes the fixing plate 7 to slide in the sliding groove 5, and pushes the fixing plate 10 fixedly connected to the mixing shaft 9 through the push plate 11, so that the mixing shaft 9 is pushed to the right and the groove of the mixing shaft 9 is pushed outside the right wall of the mixing drum 4. Then the motor 8 is started to rotate clockwise to push the concrete into the discharge hopper 12, and the concrete is concentrated together and flows into the discharge column 13. The discharge column 13 is rotatably connected to the discharge hopper 12, so that the discharge nozzle 14 can rotate, which is convenient for receiving vehicles or personnel to receive materials at different positions.

[0040] Reference Figure 1 , Figure 2 and Figure 3The cleaning device 2 includes a water tank 201. A water pump 202 is fixedly connected to the front side of the right support column 3. The output end of the water pump 202 is connected to a water supply pipe 203. The input end of the water supply pipe 203 is connected to the front right end of the water tank 201. The output end of the water supply pipe 203 is connected to a booster 204. The bottom end of the booster 204 is connected to a spray main pipe 205. Multiple spray auxiliary pipes 206 are connected to the front and rear sides of the spray main pipe 205. The output ends of the multiple spray auxiliary pipes 206 are all connected to a rotary valve 207. The output ends of the multiple rotary valves 207 are all connected to a nozzle 208.

[0041] Specifically, water in the water tank 201 is pumped to the water supply pipe 203 by the water pump 202, and then supplied to the booster 204 through the water supply pipe 203 and the water pump 202 to increase the water pressure. The booster 204 is connected to the main spray pipe 205 below, and multiple spray auxiliary pipes 206 are connected to the front and rear sides of the main spray pipe 205. The output end of each spray auxiliary pipe 206 is connected to a rotary valve 207 for adjusting the angle of the nozzle 208, so that the entire mixing tank 4 can be cleaned.

[0042] Reference Figure 1 and Figure 2 A control console 16 is fixedly connected to the left end of the top wall of the base plate 1, and multiple control buttons 17 are fixedly installed on the top wall of the control console 16; a ladder 18 is fixedly connected to the front side of the top wall of the base plate 1, and the top of the ladder 18 is fixedly connected to the front side of the top wall of the mixing tank 4; a feeding trough 19 is provided on the left side of the top wall of the mixing tank 4, and a baffle 20 is fixedly connected to the top of the feeding trough 19; a maintenance valve 21 is provided in the middle of the top wall of the mixing tank 4, and a handle 22 is fixedly connected to the top wall of the maintenance valve 21; a water injection valve 23 is provided on the right side of the front side of the water tank 201; a pressure gauge 24 is fixedly connected to the middle of the top of the front side of the water tank 201.

[0043] Specifically, the console 16 and control buttons 17 allow operators to easily control various functions of the mixing system, such as starting, stopping, and adjusting the mixing speed. This helps improve operational efficiency and ensures that the mixing process proceeds according to predetermined parameters. The ladder 18 provides operators with a safe and convenient way to reach the top of the mixing tank 4, which is crucial for adding materials, inspecting, or maintaining the interior of the mixing tank 4. Materials are added to the mixing tank 4 through the feeding chute 19, and the baffle 20 prevents splashing during the feeding process. The inspection valve 21 allows operators to open the mixing tank 4 when needed for internal inspection or maintenance. The handle 22 facilitates lifting the inspection valve 21. The water filling valve 23 is used to add water to the water tank 201 for cleaning the mixing tank 4 and freshly mixed concrete, etc. The pressure gauge 24 is used to monitor the pressure inside the water tank 201, allowing the operator to determine the remaining water level in the water tank 201.

[0044] Working principle: The motor 8 drives the mixing shaft 9 to rotate, which fully mixes the concrete in the mixing drum 4, thereby improving the uniformity and quality of the concrete. After mixing, the hydraulic cylinder 15 pushes the fixing plate 7, causing the fixing plate 7 to slide in the sliding groove 5. The pushing plate 11 pushes the fixing disc 10, which is fixedly connected to the mixing shaft 9, to move the mixing shaft 9 to the right, pushing the groove of the mixing shaft 9 outside the right wall of the mixing drum 4. Then, the motor 8 is started to rotate clockwise to push the concrete into the discharge hopper 12. The discharge hopper 12 collects the concrete pushed in by the two mixing shafts 9 and flows into the discharge column 13. The discharge column 13 is rotatably connected to the discharge hopper 12, allowing the concrete to be discharged. The nozzle 14 can rotate, making it convenient for receiving vehicles or personnel to receive materials at different locations. After all the concrete has been discharged, the water in the water tank 201 is pumped to the water supply pipe 203 by the water pump 202. The water is then supplied to the booster 204 through the water supply pipe 203 and the water pump 202 to increase the water pressure. The strong water pressure can wash away the deposits attached to the inner wall of the mixing drum 4 and the mixing shaft 9. The booster 204 is connected to the main spray pipe 205. The front and rear sides of the main spray pipe 205 are connected to multiple spray auxiliary pipes 206. The output end of each spray auxiliary pipe 206 is connected to a rotary valve 207 for adjusting the angle of the nozzle 208, so that the entire interior of the mixing drum 4 can be cleaned.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A convenient-to-clean twin-shaft horizontal concrete mixer, comprising a base plate (1), characterized in that: The top wall of the base plate (1) is fixedly connected to the left and right sides of the middle section of the base plate (1). The inner walls of the two support columns (3) are fixedly connected to the mixing tank (4). The top left side of the base plate (1) is provided with sliding grooves (5) at both ends. The inner walls of the two sliding grooves (5) are provided with sliding feet (6). The tops of the two sliding feet (6) are fixedly connected to the fixing plates (7). The left side of the left support column (3) is fixedly connected to the left side of the base plate (3). The output end of the hydraulic cylinder (15) is fixedly connected to the inner wall of the fixing plate (7). The top wall of the fixing plate (7) is fixedly connected to the front and rear sides of the base plate (7). The two motors (8) are fixedly connected to the front and rear sides of the base plate (7). The output ends of the two stirring shafts (9) are fixedly connected to the stirring shafts (9). The outer walls of the two stirring shafts (9) are fixedly connected to the fixed plates (10). The right side of the top wall of the fixed plate (7) is fixedly connected to the push plate (11). The inner wall of the push plate (11) is rotatably connected to the two fixed plates (10). The two stirring shafts (9) pass through the left and right sides of the stirring tank (4). The right side of the stirring tank (4) is fixedly connected to the discharge chamber (12). The bottom end of the discharge chamber (12) is rotatably connected to the discharge column (13). The outer wall of the discharge column (13) is connected to the discharge nozzle (14). The middle of the top wall of the bottom plate (1) is provided with a cleaning device (2).

2. The convenient-to-clean twin-shaft horizontal concrete mixer according to claim 1, characterized in that: The cleaning device (2) includes a water tank (201), and a water pump (202) is fixedly connected to the front side of the support column (3) on the right side. The output end of the water pump (202) is connected to a water supply pipe (203), the input end of the water supply pipe (203) is connected to the front right end of the water tank (201), the output end of the water supply pipe (203) is connected to a booster (204), the bottom end of the booster (204) is connected to a spray main pipe (205), the front and rear sides of the spray main pipe (205) are connected to multiple spray auxiliary pipes (206), the output ends of the multiple spray auxiliary pipes (206) are connected to a rotary valve (207), and the output ends of the multiple rotary valves (207) are connected to a nozzle (208).

3. The convenient-to-clean twin-shaft horizontal concrete mixer according to claim 1, characterized in that: A control console (16) is fixedly connected to the left end of the top wall of the base plate (1), and multiple control buttons (17) are fixedly installed on the top wall of the control console (16).

4. The convenient-to-clean twin-shaft horizontal concrete mixer according to claim 1, characterized in that: A ladder (18) is fixedly connected to the front side of the top wall of the base plate (1), and the top of the ladder (18) is fixedly connected to the front side of the top wall of the mixing tank (4).

5. A convenient-to-clean twin-shaft horizontal concrete mixer according to claim 1, characterized in that: A feeding trough (19) is provided on the left side of the top wall of the mixing tank (4), and a baffle (20) is fixedly connected to the top of the feeding trough (19).

6. A convenient-to-clean twin-shaft horizontal concrete mixer according to claim 1, characterized in that: The top wall of the mixing tank (4) is provided with a maintenance valve (21), and the top wall of the maintenance valve (21) is fixedly connected with a handle (22).

7. A convenient-to-clean twin-shaft horizontal concrete mixer according to claim 2, characterized in that: A water injection valve (23) is provided on the right side of the front of the water tank (201).

8. A convenient-to-clean twin-shaft horizontal concrete mixer according to claim 2, characterized in that: A pressure gauge (24) is fixedly connected to the middle of the top front of the water tank (201).

Citation Information

Patent Citations

  • Double-shaft horizontal concrete mixer

    CN209954967U