CN111633814A

CN111633814A - Concrete mixing drum with cleaning function

Info

Publication number: CN111633814A
Application number: CN202010523279.7A
Authority: CN
Inventors: 刘志林
Original assignee: Zhuji Ouyi Automation Equipment Co ltd
Current assignee: Zhuji Ouyi Automation Equipment Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-09-08

Abstract

The invention discloses a concrete mixing drum with a cleaning function, which comprises a mixing drum, wherein a switching cavity is arranged in the mixing drum, a meshing cavity is communicated and arranged at the lower left side of the switching cavity, an inner drum which is abutted against the inner wall of the switching cavity and can slide from left to bottom to right and up is arranged in the switching cavity, a mixing cavity is arranged in the inner drum, and a drum groove which is far away from the mixing cavity is arranged at the left side of the outer circular surface of the inner drum, through the vibration of an inner plate in the mixing drum, intermittent water supplement with different frequencies is carried out in the mixing drum according to the dryness and humidity in the mixing drum during the working process of the mixing drum, so that the concrete in the mixing drum keeps fluidity, the concrete is not easy to accumulate and block due to the vibration of the inner plate, the position of the inner drum of the mixing drum is switched during cleaning, a water supply cavity is switched to the cleaning cavity, and the inner drum, the cleaning cost is reduced, and the concrete is prevented from solidifying and blocking in the mixing drum.

Description

Concrete mixing drum with cleaning function

Technical Field

The invention relates to the technical field of concrete cleaning, in particular to a concrete mixing drum with a cleaning function.

Background

In the middle of the building work process, the concrete mixer truck is the special truck that is used for transporting the concrete, rotation and in good time adding water that need not stop for the churn that prevents the concrete setting mixer truck, if the concrete solidifies then can cause very big influence to the churn in the churn, cause irreversible destruction of churn inner structure even, and churn inner structure is complicated, is difficult to directly wash, and the washing cost in churn later stage after the emergence solidification stops up is higher. The present invention sets forth a device that solves the above problems.

Disclosure of Invention

The technical problem is as follows: concrete solidification in the mixing drum of the concrete mixer truck can cause the use failure of the mixing drum, and the later cleaning is very troublesome, and the cleaning cost is higher.

In order to solve the problems, the concrete mixing drum with the cleaning function is designed in the embodiment, the concrete mixing drum with the cleaning function comprises a mixing drum, a switching cavity is arranged in the mixing drum, the lower left side of the switching cavity is communicated with a meshing cavity, an inner drum which is abutted against the inner wall of the switching cavity and can slide from left to right and up is arranged in the switching cavity, a mixing cavity is arranged in the inner drum, a drum groove which is opened to the far away from the mixing cavity is arranged on the left side of the outer circular surface of the inner drum, sleeves which are abutted against the wall surfaces of the drum groove are arranged in the drum groove, one side end surface of each sleeve which is far away from the mixing cavity is flush with the outer circular surface of the inner drum, inner plate grooves which are distributed in an annular array by taking the axis of the inner drum as the center of a circle are communicated between the mixing cavity and the drum groove, and spring grooves are respectively communicated with the, the left lower side of each inner plate groove is respectively communicated with a vibration groove, an inner plate is respectively placed in each inner plate groove, one side end face of each inner plate far away from the stirring cavity is abutted against one side end face of the sleeve close to the stirring cavity, one side end face of each inner plate close to the stirring cavity is flush with the inner wall face of the stirring cavity, each inner plate extends into the vibration groove from the lower left, an annular cavity is jointly communicated between each vibration groove in the lower left wall of the stirring cavity, each inner plate extends into the spring groove from the upper right, an annular connecting plate is arranged in the annular cavity in a sliding manner, the upper right end face of the annular connecting plate is fixedly connected with each lower left end face of the inner plate, a motor is fixedly arranged in the lower left wall of the meshing cavity, and the upper right end of the motor is dynamically connected with a rotating rod extending into the meshing cavity, the utility model discloses a stirring shaft, including the bull stick right-hand member, the bull stick right-hand member is connected with power gear, power gear meshing be connected with rotate connect in the reversing gear of the upper left wall of meshing chamber, the upper right side of power gear be equipped with fixed connection in inner tube and meshing connection in reversing gear's driven gear, stir between the chamber left side lower wall and the upper right wall rotate be equipped with the (mixing) shaft of inner tube with the axle center, the crisscross helical blade of the outer disc fixedly connected with spiral of (mixing) shaft, be equipped with the opening spline groove down left in the (mixing) shaft, spline inslot rotation is connected with can be in gliding spline inslot spline, the left lower extreme of spline runs through driven gear and fixed connection in the upper right terminal surface of power gear, the sleeve.

Preferably, a vibrating machine is fixedly arranged in the lower left wall of the vibrating groove, a connecting rod is fixedly connected to the right upper end face of the vibrating machine, and the right upper end of the connecting rod in the vibrating groove is fixedly connected to the left lower end face of the annular connecting plate.

Preferably, the liquid supply device is internally provided with a cleaning cavity which is positioned in the upper wall of the switching cavity, the cleaning cavity is communicated with the switching cavity to form cleaning channels distributed in an array manner, the upper right side of the cleaning cavity is provided with a water supply channel in the upper wall of the switching cavity, the water supply channel is communicated with the switching cavity to form a water supply cavity distributed in an array manner, an opening is formed in the sleeve and is far away from the stirring cavity, the opening is respectively communicated with the input pipelines of the cleaning channels, the input pipelines are respectively communicated with the water supply cavities when the inner cylinder moves to the right limit position, the lower right side of the input pipeline is communicated with a conveying pipeline, and the lower right wall of the conveying pipeline is communicated with output pipelines which are provided with openings and are distributed in an array manner.

Preferably, switching pipelines which penetrate through the inner plate and are uniformly distributed in an array are arranged in the inner plate, the switching pipelines and the output pipelines are arranged in a staggered mode, when the inner plate slides leftwards in the inner plate groove, the switching pipelines are communicated with the output pipelines, and when the inner plate resets, the switching pipelines are not communicated with the output pipelines.

Preferably, a hydraulic cylinder is fixedly arranged in the right upper wall of the switching cavity, a piston is connected to the left lower end of the hydraulic cylinder in a power connection mode, a telescopic rotating rod capable of stretching and contracting is connected to the left lower end of the piston in a rotating mode, the left end of the telescopic rotating rod is fixedly connected to the right upper end face of the inner cylinder, the piston can control the telescopic rotating rod to stretch in the piston, and the telescopic rotating rod can keep an idling relation with the piston when rotating along with the inner cylinder.

Preferably, the upper right side of the stirring chamber communicates and is equipped with the feed inlet of opening upper right side, the lower right side of the stirring chamber communicates and is equipped with the discharge gate of opening upper right side, it is equipped with the feed channel of opening upper right side to switch the intercommunication in the upper right wall of chamber, it is equipped with the discharge channel of opening upper right side to switch the intercommunication in the lower right wall of chamber, work as when the inner tube removes there is extreme position, the feed inlet with feed channel communicates with each other, the discharge gate with discharge channel communicates with each other.

Preferably, a sliding groove is formed in the right lower wall of the switching cavity in a communicating manner, a fixed block fixedly connected to the sleeve is arranged in the sliding groove in a sliding manner, the fixed block can move in the sliding groove along with the movement of the inner cylinder, and the fixed block can enable the sleeve to be kept stable and not to rotate when the inner cylinder rotates.

Preferably, the spring groove is internally provided with a spring fixedly connected to the right upper wall of the spring groove, the left end of the spring is fixedly connected to the right upper end of the inner plate, and the right upper wall of the stirring cavity and the left lower side of the spring groove are fixedly provided with a sensor for detecting the humidity and the temperature in the stirring cavity.

Preferably, a feeding funnel is fixedly arranged on the right end face of the mixing drum, a hopper cavity which is communicated with a feeding channel and has an upward opening is arranged in the feeding funnel, a receiving vehicle is arranged on the lower right side of the mixing drum, a receiving cavity which has an upward opening is arranged in the receiving vehicle, the discharging channel is communicated with the receiving cavity, and the lower end face of the receiving vehicle is rotatably connected with a universal wheel used for moving.

The invention has the beneficial effects that: according to the invention, through the vibration of the inner plate in the mixing drum, intermittent water replenishing with different frequencies is carried out in the mixing drum according to the dryness and humidity in the mixing drum in the working process of the mixing drum, so that the concrete in the mixing drum keeps fluidity, the vibration of the inner plate enables the concrete not to be easily accumulated and blocked, the position of the inner cylinder of the mixing drum is switched during cleaning, the water supply cavity is switched to the cleaning cavity, the cleaning process is fully and effectively realized through the vibration of the inner plate and the rolling of the inner cylinder, the cleaning cost is reduced, and the solidification and blocking of the concrete in the mixing drum are avoided.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of a concrete mixing drum with a cleaning function according to the present invention;

FIG. 2 is a schematic structural view of the stirring apparatus of FIG. 1 in a stirring operation state;

FIG. 3 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 4 is a schematic view of the structure in the direction "B-B" of FIG. 1;

FIG. 5 is a front view of the "inner barrel" of the present invention;

FIG. 6 is an enlarged view of the structure of "C" of FIG. 1;

fig. 7 is an enlarged view of the structure of "D" of fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-7, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a concrete mixing drum with a cleaning function, which comprises a mixing drum 11, wherein a switching cavity 35 is arranged in the mixing drum 11, a meshing cavity 18 is communicated and arranged at the lower left side of the switching cavity 35, an inner drum 21 which is abutted against the inner wall of the switching cavity 35 and can slide from left to right and up is arranged in the switching cavity 35, a mixing cavity 64 is arranged in the inner drum 21, a drum groove 62 which is opened to the direction far away from the mixing cavity 64 is arranged at the left side of the outer circular surface of the inner drum 21, a sleeve 46 which is abutted against each wall surface of the drum groove 62 is arranged in the drum groove 62, one side end surface of the sleeve 46 far away from the mixing cavity 64 is flush with the outer circular surface of the inner drum 21, inner plate grooves 63 which are distributed in an annular array by taking the axis of the inner drum 21 as the center of a circle are communicated and arranged between the mixing cavity 64 and the drum groove 62, and the right sides, each the lower left side of inner plate groove 63 communicates respectively and is equipped with vibration groove 51, each place respectively in the inner plate groove 63 and be equipped with inner panel 24, each inner panel 24 is kept away from one side terminal surface of stirring chamber 64 with sleeve 46 is close to one side terminal surface of stirring chamber 64 offsets, each inner panel 24 is close to one side terminal surface of stirring chamber 64 with the internal wall face of stirring chamber 64 flushes, each inner panel 24 extends to down left in the vibration groove 51, each in the stirring chamber 64 lower left wall each vibration groove 51 communicates jointly and is equipped with annular chamber 65, each inner panel 24 extends to up right in the spring groove 26, slide in the annular chamber 65 and be equipped with annular even board 61, the upper right end of annular even board 61 with each the lower left end fixed connection of inner panel 24, the fixed motor 16 that is equipped with in the lower left wall in the meshing chamber 18, the power of the upper right end of motor 16 is connected with the bull stick 17 that extends to in the meshing chamber 18, the right end of the rotating rod 17 is fixedly connected with a power gear 15, the power gear 15 is engaged and connected with a reversing gear 14 which is rotatably connected with the left upper wall surface of the engaging cavity 18, the upper right side of the power gear 15 is provided with a driven gear 13 which is fixedly connected with the inner cylinder 21 and is engaged with the reversing gear 14, a stirring shaft 19 which is coaxial with the inner cylinder 21 is rotatably arranged between the left lower wall and the right upper wall of the stirring cavity 64, the outer circular surface of the stirring shaft 19 is fixedly connected with spiral staggered spiral blades 20, a spline groove 47 with a left lower opening is arranged in the stirring shaft 19, the spline groove 47 is rotatably connected with a spline 12 capable of sliding in the spline groove 47, the left lower end of the spline 12 penetrates through the driven gear 13 and is fixedly connected to the right upper end face of the power gear 15, and a liquid supply device 101 is fixedly arranged in the sleeve 46 and the upper side of the mixing drum 11.

Advantageously, a vibrator 53 is fixedly arranged in the lower left wall of the vibration groove 51, a connecting rod 52 is fixedly connected to the upper right end surface of the vibrator 53, and the upper right end of the connecting rod 52 in the vibration groove 51 is fixedly connected to the lower left end surface of the annular connecting plate 61.

Advantageously, the liquid supply device 101 comprises a cleaning chamber 43 arranged in the upper wall of the switching chamber 35, the cleaning cavity 43 and the switching cavity 35 are communicated with each other to form an array of cleaning channels 44, a water supply channel 41 is arranged at the right upper side of the cleaning cavity 43 in the upper wall of the switching cavity 35, water supply cavities 42 distributed in an array are communicated between the water supply channel 41 and the switching cavity 35, the sleeve 46 is provided with an input duct 45 which is opened to a position far away from the stirring chamber 64 and is respectively communicated with each cleaning channel 44, the input pipes 45 are respectively communicated with the water supply cavities 42 when the inner cylinder 21 moves to the right limit position, a conveying pipeline 48 is communicated with the right lower side of the input pipeline 45 in the sleeve 46, and output pipelines 49 which are opened to the inner plate groove 63 and are uniformly distributed in an array are communicated with the right lower wall surface of the conveying pipeline 48.

Advantageously, switching ducts 50 are provided in the inner plate 24 and extend through the inner plate 24 and are distributed in an even array, the switching ducts 50 are staggered with respect to the output ducts 49, the switching ducts 50 communicate with the output ducts 49 when the inner plate 24 slides to the left in the inner plate groove 63, and the switching ducts 50 do not communicate with the output ducts 49 when the inner plate 24 is reset.

Advantageously, a hydraulic cylinder 32 is fixedly arranged in the upper right wall of the switching cavity 35, a piston 33 is dynamically connected to the lower left end of the hydraulic cylinder 32, a telescopic rotating rod 34 is rotatably connected to the lower left end of the piston 33, the telescopic rotating rod 34 is fixedly connected to the upper right end face of the inner cylinder 21 at the left end, the piston 33 can control the telescopic rotating rod 34 to be telescopic in the piston 33, and the telescopic rotating rod 34 can keep an idle rotation relation with the piston 33 when rotating along with the inner cylinder 21.

Beneficially, the upper right side of the stirring cavity 64 is communicated with a feed inlet 57 with an opening facing upward, the lower right side of the stirring cavity 64 is communicated with a discharge outlet 27 with an opening facing upward, the feed channel 58 with an opening facing upward is communicated with the upper right wall of the switching cavity 35, the discharge channel 31 with an opening facing upward is communicated with the lower right wall of the switching cavity 35, when the inner cylinder 21 moves to a limit position, the feed inlet 57 is communicated with the feed channel 58, and the discharge outlet 27 is communicated with the discharge channel 31.

Advantageously, the lower right wall of the switching chamber 35 is provided with a sliding slot 23 in communication, a fixed block 22 fixedly connected to the sleeve 46 is slidably arranged in the sliding slot 23, the fixed block 22 can move in the sliding slot 23 along with the movement of the inner cylinder 21, and the fixed block 22 can keep the sleeve 46 stable and not rotate when the inner cylinder 21 rotates.

Advantageously, a spring 25 fixedly connected to the upper right wall of the spring groove 26 is arranged in the spring groove 26, the left end of the spring 25 is fixedly connected to the upper right end of the inner plate 24, and a sensor 54 for detecting the humidity and temperature in the stirring chamber 64 is fixedly arranged on the upper right wall of the stirring chamber 64 and the lower left side of the spring groove 26.

Beneficially, a feeding funnel 59 is fixedly arranged on the right end face of the mixing drum 11, a funnel cavity 60 which is communicated with the feeding channel 58 and is opened upwards is arranged in the feeding funnel 59, a receiving trolley 29 is arranged on the lower right side of the mixing drum 11, a receiving cavity 28 which is opened upwards is arranged in the receiving trolley 29, the discharging channel 31 is communicated with the receiving cavity 28, and a universal wheel 30 for moving is rotatably connected to the lower end face of the receiving trolley 29.

The following describes in detail the use steps of a concrete mixing drum with cleaning function in the present text with reference to fig. 1 to 7: in an initial state, the upper right end face of the inner cylinder 21 abuts against the upper right wall face of the switching cavity 35, the feeding port 57 is communicated with the feeding channel 58, the discharging port 27 is communicated with the discharging channel 31, the reversing gear 14 is disengaged from the driven gear 13, the spline 12 is meshed with the stirring shaft 19 in the spline groove 47, the input pipeline 45 is communicated with the water supply channel 41, the fixed block 22 is in a right limit position, and the upper right end face of the fixed block 22 abuts against the upper right wall face of the sliding groove 23.

When the stirring machine works, materials such as cement, sand, stone and the like are poured from the hopper cavity 60, water with required proportion is added, the materials enter the stirring cavity 64 through the feeding channel 58 and the feeding hole 57, the motor 16 is started, the motor 16 drives the power gear 15 to rotate positively through the rotating rod 17, the power gear 15 drives the spline 12 to rotate, the spline 12 drives the stirring shaft 19 to rotate through the spline connection, the stirring shaft 19 drives the helical blades 20 to stir the materials, the vibrator 53 is started, the vibrator 53 drives the annular connecting plate 61 to slide left and right in the annular cavity 65 through the connecting rod 52, the annular connecting plate 61 drives the inner plate 24 to slide left and right, the switching pipeline 50 and the output pipeline 49 are communicated intermittently, the water in the water supply channel 41 intermittently flows into the stirring cavity 64 to keep the humidity of the concrete from solidification, the sensor 54 constantly detects the dry humidity and the temperature change in the stirring cavity 64, therefore, the change frequency of the vibrating machine 53 is controlled according to the detection result of the sensor 54, the inner plate 24 enables concrete in the stirring cavity 64 not to be easily condensed or blocked in the sliding process, after the concrete in the stirring cavity 64 is stirred, the motor 16 controls the power gear 15 to rotate reversely, the power gear 15 drives the spline 12 to rotate the helical blade 20 reversely, the concrete in the stirring cavity 64 is pushed by the helical blade 20 to enter the material receiving cavity 28 from the stirring cavity 64 through the discharge hole 27 and the discharge channel 31, and the material receiving vehicle 29 loaded with the concrete is moved to a required place through the universal wheel 30; when the mixing drum is cleaned, the piston 33 controls the extension of the telescopic rotating rod 34, the inner drum 21 moves to the position that the left lower end surface of the inner drum 21 is abutted against the left lower wall surface of the switching cavity 35, at the moment, the driven gear 13 is engaged with the reversing gear 14, the input pipeline 45 is communicated with the cleaning channel 44, the spline 12 is in a meshing relationship with the mixing shaft 19 in the spline groove 47, the fixed block 22 is at the left limit position, the left lower end surface of the fixed block 22 is abutted against the left lower wall surface of the chute 23, the motor 16 is started, the motor 16 drives the power gear 15 to rotate forward, the power gear 15 drives the spline 12 to rotate forward, the spline 12 drives the mixing shaft 19 and the helical blade 20 to rotate forward through the spline meshing relationship, the power gear 15 drives the reversing gear 14 to rotate through the meshing relationship, the driven gear 13 drives the inner drum 21 to rotate backward, and the inner, when the vibrator 53 is turned on, the vibrator 53 drives the inner plate 24 to slide left and right, and when the inner plate 24 slides left, the output pipeline 49 is communicated with the switching pipeline 50, the dissolved cleaning agent in the cleaning cavity 43 enters the conveying pipeline 48 through the cleaning channel 44 and the input pipeline 45, then enters the stirring cavity 64 through the output pipeline 49 and the switching pipeline 50, when concrete is blocked in the switching pipeline 50, the concrete is dredged by the dissolved cleaning agent and slides into the stirring cavity 64, meanwhile, the concrete attached to the inner wall of the stirring cavity 64 is shattered by sliding the inner plate 24 left and right, the hydraulic cylinder 32 controls the telescopic rotating rod 34 to contract, the telescopic rotating rod 34 drives the inner cylinder 21 to return to the right limit position, a large amount of water is filled into the stirring cavity 64 at the moment, the motor 16 controls the power gear 15 to rotate reversely, and the cleaned sewage in the stirring cavity 64 is removed and discharged through the discharge hole 27 and the discharge channel 31.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims

1. The utility model provides a concrete mixing drum with cleaning function, includes the mixing drum, its characterized in that: a switching cavity is arranged in the stirring cylinder, the lower left side of the switching cavity is communicated with an engaging cavity, an inner cylinder which is abutted against the inner wall of the switching cavity and can slide from left to right and up is arranged in the switching cavity, a stirring cavity is arranged in the inner cylinder, a cylinder groove with an opening facing away from the stirring cavity is arranged on the left side of the outer circular surface of the inner cylinder, a sleeve which is abutted against each wall surface of the cylinder groove is arranged in the cylinder groove, one side end surface of the sleeve, away from the stirring cavity, is flush with the outer circular surface of the inner cylinder, an inner plate groove which is distributed in an annular array mode by taking the axis of the inner cylinder as the center of a circle is communicated between the stirring cavity and the cylinder groove, the right side of each inner plate groove is respectively communicated with a spring groove, the lower left side of each inner plate groove is respectively communicated with a vibrating groove, an inner plate is respectively arranged in each inner plate groove, one side end surface of each, each inner plate is close to one side end face of the stirring cavity and is flush with the inner wall face of the stirring cavity, each inner plate extends into the vibration groove from left to bottom, each vibration groove in the left lower wall of the stirring cavity is communicated with an annular cavity, each inner plate extends into the spring groove from right to top, an annular connecting plate is arranged in the annular cavity in a sliding manner, the upper right end face of the annular connecting plate is fixedly connected with the lower left end face of each inner plate, a motor is fixedly arranged in the lower left wall of the meshing cavity, the upper right end of the motor is in power connection with a rotating rod extending into the meshing cavity, the right end of the rotating rod is fixedly connected with a power gear, the power gear is in meshing connection with a reversing gear rotationally connected with the upper left wall face of the meshing cavity, and the upper right side of the power gear is provided with a driven gear which is fixedly connected with, the stirring shaft is arranged between the left lower wall and the right upper wall of the stirring cavity in a rotating mode and is coaxial with the inner barrel, spiral blades which are spirally staggered are fixedly connected to the outer circular surface of the stirring shaft, a spline groove with a left lower opening is formed in the stirring shaft, a spline which can slide in the spline groove is rotationally connected to the spline groove, the left lower end of the spline penetrates through the driven gear and is fixedly connected to the right upper end face of the power gear, and a liquid supply device is fixedly arranged on the upper side of the sleeve and the stirring barrel.

2. A concrete mixing drum with washing function according to claim 1, characterized in that: the vibrating groove is characterized in that a vibrating machine is fixedly arranged in the lower left wall of the vibrating groove, a connecting rod is fixedly connected to the right upper end face of the vibrating machine, and the right upper end of the connecting rod is fixedly connected to the left lower end face of the annular connecting plate in the vibrating groove.

3. A concrete mixing drum with washing function according to claim 1, characterized in that: the liquid supply device is internally provided with a cleaning cavity which is positioned in the upper wall of the switching cavity, the cleaning cavity is communicated with a cleaning channel which is distributed in an array manner and is arranged between the switching cavities, a water supply channel is arranged at the upper right side of the cleaning cavity in the upper wall of the switching cavity, the water supply channel is communicated with a water supply cavity which is distributed in an array manner and is arranged between the switching cavities, an opening is arranged in the sleeve and is far away from the stirring cavity, the stirring cavity is respectively communicated with the input pipelines of the cleaning channels, the input pipelines are respectively communicated with the water supply cavity when the inner cylinder moves to the right limit position, the lower right side of the input pipeline is communicated with a conveying pipeline, and the lower right wall of the conveying pipeline is communicated with an output pipeline which is provided with an opening and is distributed in an array manner.

4. A concrete mixing drum with washing function according to claim 3, characterized in that: switching pipelines which penetrate through the inner plate and are uniformly distributed in an array mode are arranged in the inner plate, the switching pipelines and the output pipelines are arranged in a staggered mode, when the inner plate slides leftwards in the inner plate groove, the switching pipelines are communicated with the output pipelines, and when the inner plate resets, the switching pipelines are not communicated with the output pipelines.

5. A concrete mixing drum with washing function according to claim 1, characterized in that: the switching cavity right upper wall internal fixation is equipped with the pneumatic cylinder, pneumatic cylinder left side lower extreme power is connected with the piston, piston left side lower extreme rotates and is connected with flexible bull stick that can stretch out and draw back, flexible bull stick left end fixed connection in the upper right end face of inner tube, the piston can be controlled flexible bull stick is in stretch out and draw back in the piston, flexible bull stick can along with when the inner tube rotates with the piston keeps the idle relation.

6. A concrete mixing drum with washing function according to claim 1, characterized in that: the upper right side intercommunication of stirring chamber is equipped with the opening feed inlet to the upper right, the lower right side intercommunication of stirring chamber is equipped with the opening discharge gate to the upper right, it is equipped with opening feedstock channel to the upper right to switch chamber upper right wall in-connection, it is equipped with opening discharge channel to the upper right to switch the intercommunication in the chamber lower right wall, works as when the inner tube removes there is extreme position, the feed inlet with feedstock channel communicates with each other, the discharge gate with discharge channel communicates with each other.

7. A concrete mixing drum with washing function according to claim 1, characterized in that: the switching cavity right lower wall is communicated with a sliding groove, a fixed block fixedly connected to the sleeve is arranged in the sliding groove in a sliding mode, the fixed block can move in the sliding groove along with the movement of the inner barrel, and the fixed block can enable the sleeve to be kept stable and not to rotate when the inner barrel rotates.

8. A concrete mixing drum with washing function according to claim 1, characterized in that: the stirring device is characterized in that a spring groove is internally provided with a spring fixedly connected to the upper right wall of the spring groove, the left end of the spring is fixedly connected to the upper right end of the inner plate, and the upper right wall of the stirring cavity and the lower left side of the spring groove are fixedly provided with a sensor for detecting the humidity and the temperature in the stirring cavity.

9. A concrete mixing drum with washing function according to claim 1, characterized in that: the fixed feed hopper that is equipped with of churn right-hand member face, be equipped with in the feed hopper with feedstock channel is linked together and the ascending funnel chamber of opening, churn right side downside is placed and is equipped with and connects the skip, it is equipped with the ascending material chamber that connects of opening in the skip to connect, feedstock channel with connect the material chamber to be linked together, the terminal surface rotates under the skip and is connected with the universal wheel that is used for the removal.