CN114714511A

CN114714511A - Agitating unit and concrete mixer truck

Info

Publication number: CN114714511A
Application number: CN202210508211.0A
Authority: CN
Inventors: 王宏帅; 杨博; 李坤峰; 邵林; 吴晓明; 孙世伦
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-07-08

Abstract

The invention relates to a stirring device and a concrete mixer truck, comprising a stirring tank with a stirring cavity; the mounting seat is mounted in the stirring cavity; the cleaning pipeline is movably assembled on the mounting seat around the rotating axis, and when the stirring tank drives the mounting seat to move around the rotating axis, the cleaning pipeline and the mounting seat generate circumferential rotation; the cleaning pipeline is provided with a water inlet and a water outlet which are communicated with each other, and the water outlet is opposite to the wall of the stirring cavity. Above-mentioned agitating unit through will wasing the inside of pipe installation at the agitator tank, when needs wash the agitator tank, outside high-pressure rivers alright with the delivery port blowout through wasing the pipeline to wash the inner wall of agitator tank. Further, through rotating the agitator tank, the agitator tank and the cleaning pipeline are rotated relatively, so that water columns sprayed from the water outlets can be cleaned to different positions of the inner wall of the agitator tank, and the cleaning degree of the agitator tank is greatly improved.

Description

Agitating unit and concrete mixer truck

Technical Field

The invention relates to the technical field of mixer trucks, in particular to a mixing device and a concrete mixer truck.

Background

The concrete mixer truck is a special truck for conveying concrete for construction, and the truck is provided with a cylindrical mixing tank for carrying mixed concrete, and the mixing tank can be kept to rotate all the time in the transportation process so as to ensure that the carried concrete cannot be solidified.

And the concrete can be solidified under the action of high temperature and is attached to the surface of the stirring tank, so that the normal use of the stirring tank is influenced. For this reason, the concrete mixer truck needs to wash the inside of the mixing tank in time after the mixing operation is completed, so as to prevent the residual concrete from influencing the normal use of the mixing tank after solidification. However, the existing cleaning mode for the inside of the stirring tank is usually a mode of injecting a large amount of water into the stirring tank to wash, so that the washing effect is poor, and the waste of water resources is easily caused.

Disclosure of Invention

Therefore, the stirring device and the concrete mixer truck with the improved defects are needed to solve the problems that the existing stirring tank is internally cleaned, the washing effect is poor and water resource waste is easily caused.

A stirring device, comprising:

a blender jar having a blending cavity configured to rotate about a rotation axis;

the mounting seat is mounted in the stirring cavity;

the cleaning pipeline is movably assembled on the mounting seat around the rotating axis, and when the stirring tank drives the mounting seat to move around the rotating axis, the cleaning pipeline and the mounting seat generate circumferential rotation;

the cleaning pipeline is provided with a water inlet and a water outlet which are communicated with each other, and the water outlet is opposite to the wall of the stirring cavity.

In one embodiment, the mounting seats include a first mounting seat and a second mounting seat arranged at intervals in an extending direction of the rotation axis, and the cleaning pipe is rotatably mounted on the first mounting seat and the second mounting seat around the rotation axis.

In one embodiment, the wall of the stirring chamber comprises a bottom wall and a peripheral wall, the first mounting seat is mounted on the bottom wall, and the second mounting seat is connected with the peripheral wall through spokes.

In one embodiment, the stirring device further comprises a pipeline shield and is configured to be switched between a shielding state and an exposed state, and the pipeline shield shields the water outlet in the shielding state; in the exposed state, the duct shield exposes the water outlet.

In one embodiment, the duct shield is mounted on the mounting base, and the duct shield can move relative to the cleaning duct to switch the duct shield between the shielding state and the exposing state;

the stirring device further comprises a locking piece which can be switched between a locking state and an unlocking state, wherein in the locking state, the locking piece locks the pipeline protective cover and the cleaning pipeline so as to limit the pipeline protective cover to be switched from the shielding state to the exposure state, and in the unlocking state, the locking piece allows the pipeline protective cover to be switched from the shielding state to the exposure state.

In one embodiment, the locking member comprises a body and a locking portion, one of the body and the locking portion is mounted on the duct shield or the mounting seat, and the other is mounted on the cleaning duct;

when the locking piece is in a locking state, the body and the locking part are locked with each other, and when the locking piece is in a separation state, the body and the locking part are separated from each other;

in one embodiment, the body comprises a fixed part and a movable part axially movably connected to the fixed part;

the locking part is a locking hole, and when the locking piece is in the locking state, the movable part extends into the locking hole and is fixed in the locking hole;

when the locking piece is in the unlocking state, the movable part is positioned outside the locking hole.

In one embodiment, the movable part comprises a movable rod which is axially and circumferentially movably arranged on the fixed part and a locking block which protrudes out of the side surface of the movable rod;

the locking hole comprises a first part and a second part which are communicated with each other, the second part is arranged on the inner wall of the first part and is provided with a notch communicated with the first part;

when the locking piece is in when the unblock state, the locking piece is located the locking hole is outside, works as the locking piece is in when the locking state, the movable rod wears to locate first portion, the locking piece warp the breach is located the second portion.

In one embodiment, the movable portion further includes a mounting block and an elastic member, the mounting block is mounted on an end of the movable rod away from the locking hole, the elastic member is sleeved on the movable rod and located between the mounting block and the fixed portion, and the elastic member is in a compressed state.

A concrete mixer truck comprising a mixing device as described above.

Above-mentioned agitating unit through will wasing the inside of pipe installation at the agitator tank, when needs wash the agitator tank, outside high-pressure rivers alright with the delivery port blowout through wasing the pipeline to wash the inner wall of agitator tank. Further, through rotating the agitator tank, the agitator tank and the cleaning pipeline are rotated relatively, so that water columns sprayed from the water outlets can be cleaned to different positions of the inner wall of the agitator tank, and the consumption of water resources is saved while the cleanness degree of the agitator tank is greatly improved.

Drawings

FIG. 1 is a schematic view of a stirring device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the stirring device of FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is a schematic view of a locking member of the stirring device of FIG. 1;

FIG. 6 is a schematic structural view of a water outlet of the stirring device in FIG. 1;

fig. 7 is a sectional view of a cleaning pipe of a stirring apparatus according to another embodiment of the present invention.

A stirring device 100;

a first mount 10; a bearing 11; a seal ring 12; first rotation hole 13

A second mount 20; a lock member 21; a body 211; a fixed portion 22; a movable portion 23; a movable lever 24; a lock block 25; a stop block 26; a mounting block 27; an elastic member 28; the second rotation hole 29;

cleaning the pipeline 30; a water outlet 31; a water inlet 32; a lock hole 33; a plug 34; mounting projection 35

A duct shield 40.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, 2 and 3, in an embodiment of the present invention, a stirring apparatus 100 is provided, in which a stirring tank cleaning device includes: a stirred tank, a mounting seat, a cleaning pipe 30 and a pipe shield 40.

The mixing tank has a mixing chamber for mixing the concrete, and the mixing tank is configured to rotate about an axis of rotation to mix the concrete of the mixing chamber. The mounting seat is arranged in the stirring cavity, the cleaning pipeline 30 is movably assembled on the mounting seat around the rotation axis, and when the stirring tank drives the mounting seat to move around the rotation axis, the cleaning pipeline 30 and the mounting seat generate circumferential movement. That is, the purge line 30 does not rotate with the mounting block as the agitator tank rotates, thereby keeping the purge line 30 itself stationary.

Wherein, wash and seted up water inlet 32 and delivery port 31 on the pipeline 30, water inlet 32 is used for linking to each other with outside water source, and delivery port 31 is located the stirring intracavity to make high-pressure rivers alright spout with delivery port 31 on through washing pipeline 30 in the outside water source, thereby can directly wash the inside of agitator tank.

Specifically, when the inner wall of agitator tank needs to be cleaned, will wash pipeline 30 and external water source and link to each other, restart agitator tank makes the agitator tank begin to rotate, can know from the foregoing that when agitator tank pivoted, wash pipeline 30 self is static, and when water inlet 32 and external water source link to each other, water inlet 32 just can not receive agitator tank pivoted influence with external water source junction. Further, because the cleaning pipeline 30 is immobile, the inner wall of the stirring tank can rotate relative to the cleaning pipeline 30, so that the high-pressure water column sprayed out of the water outlet 31 on the cleaning pipeline 30 can be cleaned to different positions of the inner wall of the stirring wall, and the cleaning degree of the interior of the stirring tank is greatly improved.

Above-mentioned agitating unit 100, through installing washing pipeline 30 in the inside of agitator tank, when needs wash the agitator tank, outside high-pressure rivers alright spout with delivery port 31 through washing pipeline 30 to wash the inner wall of agitator tank. Further, through rotating the agitator tank, the agitator tank and the cleaning pipeline 30 are rotated relatively, so that water columns sprayed out of the water outlets 31 can be cleaned to different positions of the inner wall of the agitator tank, and water resources are saved while the cleaning degree of the agitator tank is greatly improved.

Alternatively, referring to fig. 6, the water outlet 31 may have any shape such as a circle, a rectangle, or the like. Referring to fig. 7, the cleaning pipe 30 may have a wave shape such that the water outlet 31 at the surface of the pipe can be directed in any direction.

In the embodiment of the present invention, the mount includes the first mount 10 and the second mount 20 arranged at an interval in the extending direction of the rotation axis, and the cleaning pipe 30 is rotatably fitted to the first mount 10 and the second mount 20 around the rotation axis. So that the cleaning pipe 30 is supported by the first and second mounting

seats

10 and 20 to be stably installed in the agitating chamber.

In some embodiments, the mount has a first rotation hole 13, the axis of the first rotation hole 13 coinciding with the rotation axis. The cleaning pipe 30 is rotatably inserted into the first rotating hole 13 to fix the cleaning pipe 30 on the agitator tank through the first mounting seat 10. Further, when the agitator tank rotates around the rotation axis, the first mounting seat 10 rotates along with the agitator tank, and since the cleaning pipe 30 is inserted into the first rotation hole 13, when the first mounting seat 10 rotates, the cleaning pipe 30 does not rotate along with the first mounting seat 10, but moves relative to the first mounting seat 10, so as to keep the cleaning pipe 30 stationary, so that the cleaning pipe 30 is connected with an external water source, and the wall of the agitator tank is cleaned.

Furthermore, a second rotating hole 29 with an axis coinciding with the rotation axis is formed in the second mounting seat 20, and the cleaning pipe 30 is rotatably inserted through the second rotating hole 29. When the stirring tank rotates, the second mounting seat 20 rotates along with the stirring tank and moves relative to the cleaning pipeline 30, so that the cleaning pipeline 30 is kept still.

In some embodiments, the interior of the agitator tank includes a bottom wall and a peripheral wall through which the agitator tank is made to have a cylindrical shape. The first mounting seat 10 is mounted on the bottom wall, and the second mounting seat 20 is connected with the peripheral wall through spokes, so that the second mounting seat 20 is mounted in the stirring tank in a suspended manner. In actual use, when the agitator tank does not need to be cleaned, only the water inlet 32 and the external water source are required to be separated from each other, and the agitator tank can be stirred normally. And by mounting the first mounting seat 10 on the bottom wall, the first mounting seat 10 does not affect the mixing of the concrete. Further, the spokes are a plurality of rods extending outward from a center, i.e., the second mounting seat 20, on the same plane, and the plurality of rods have gaps therebetween, so that concrete can pass through the plurality of rods. Therefore, the supporting effect on the second mounting seat 20 can be ensured through the spokes, and the normal stirring of concrete can not be influenced.

In some embodiments, referring to fig. 3, the end of the cleaning pipe 30 is mounted on the first mounting seat 10 through a bearing 11, and a sealing ring 12 is further disposed at the joint of the end of the cleaning pipe 30 and the first mounting seat 10 to ensure that concrete does not enter the location where the bearing 11 is mounted when the mixing tank is in operation, thereby causing damage to the bearing 11.

In some embodiments, referring to fig. 4, the purge line 30 is threaded through the second mount 20 and the bearing 11 is disposed between the purge line 30 and the second mount 20. Wherein, still be provided with installation lug 35 on the washing pipeline 30, when washing pipeline 30 installs on second mount pad 20, installation lug 35 and second mount pad 20 deviate from one side butt of first mount pad 10 to carry out a location to the mounted position of washing pipeline 30 through installation lug 35.

In the embodiment of the present invention, referring to fig. 2, 3 and 5, when the mixing tank mixes concrete, the water outlet 31 is directly exposed to the mixing space of the concrete, so that the concrete can easily enter the water outlet 31, thereby causing the water outlet 31 to be blocked. To this end, the stirring device 100 further comprises a duct shield 40, the duct shield 40 being configured to switch between a shielded state in which the duct shield 40 shields the water outlet 31 and an exposed state in which the duct shield 40 lines the water outlet 31.

Specifically, when the mixing tank needs to mix the concrete, the pipeline protection cover 40 is switched to the shielding state, so that the water outlet 31 is shielded by the pipeline protection cover 40, and the concrete is prevented from entering the water outlet 31. Further, when the agitator tank needs to be cleaned, the pipeline protection cover 40 needs to be switched to the exposed state, and the water outlet 31 on the cleaning pipeline 30 is exposed, so that the high-pressure water column is sprayed out through the water outlet 31 to clean the inner wall of the agitator tank.

In some embodiments, the pipe protecting cover 40 is detachably installed on the cleaning pipe 30, and when the water outlet 31 needs to be shielded, that is, when the pipe protecting cover 40 is in a shielding state, the pipe protecting cover 40 is installed on the cleaning pipe 30 and shields the water outlet 31. When the water outlet 31 does not need to be shielded, the pipeline protection cover 40 is detached, the pipeline protection cover 40 is in an exposed state, the water outlet 31 is exposed, and then the pipeline protection cover 40 can be taken out of the stirring tank, so that the pipeline protection cover 40 is prevented from affecting the cleaning of the stirring tank.

In some embodiments, the duct shield 40 is mounted to the mounting base and is capable of rotating with the agitator tank as the agitator tank rotates, and the cleaning duct 30 is not rotating as the agitator tank rotates, thereby creating relative movement between the duct shield 40 and the cleaning duct 30. In the process of moving the pipe protecting cover 40 relative to the cleaning pipe 30, the pipe protecting cover 40 moves to a position above the water outlet 31, so as to shield the water outlet 31, and at this time, the pipe protecting cover 40 is in a shielding state. When the pipe protective cover 40 moves to other positions, the pipe protective cover 40 leaves the water outlet 31, so that the water outlet 31 is exposed, and the water jet of the water outlet 31 can clean the cavity wall of the stirring tank.

Further, the stirring device 100 further includes a lock member 21, and the lock member 21 can be switched between a locked state and an unlocked state, and in the locked state, the lock member 21 can lock the duct shield 40 and the cleaning duct 30, so that the duct shield 40 is restricted from being switched from the shielding state to the exposure state, that is, in the locked state, the duct shield 40 can be always in the shielding state. In the unlocked state, the lock 21 allows the duct shield 40 to be switched from the shielding state to the exposing state, so that the water outlet 31 on the cleaning duct 30 can be exposed.

In the actual use process, when concrete needs to be stirred, the pipeline protection cover 40 is moved to the position above the water outlet 31 to shield the water outlet 31, then the locking piece 21 is switched to the locking state, the pipeline protection cover 40 and the cleaning pipeline 30 are locked, the cleaning pipeline 30 can rotate along with the pipeline protection cover 40, and therefore the pipeline protection cover 40 is always positioned above the water outlet 31 to shield the water outlet 31.

When the cavity wall of the stirring tank needs to be cleaned, the locking piece 21 is switched to the unlocking state, the stirring shield can continue to rotate along with the stirring tank, so that the stirring shield is separated from the upper part of the water outlet 31, the water outlet 31 is exposed, and the water outlet 31 can spray water to clean the cavity wall of the stirring tank.

In the embodiment, one end of the pipe protecting cover 40 is installed on the first installation seat 10, the other end is installed on the second installation seat 20, and the water outlet 31 is also located between the first installation seat 10 and the second installation seat 20, when the pipe protecting cover 40 rotates along with the mixing tank, the pipe protecting cover 40 can move above the water outlet 31, and the water outlet 31 is shielded.

Further, the stirring device 100 further comprises a plug 34, wherein the plug 34 is detachably installed in the water inlet 32, and when the stirring tank does not need to be cleaned, the water inlet 32 can be sealed through the plug 34, so that concrete is prevented from entering the water outlet 31.

In some embodiments, lock 21 includes a body 211 and a locking portion, one of the body 211 and the locking portion being mounted on duct guard 40 and the other being mounted on wash duct 30. When the lock member 21 is in the locked state, the body 211 and the lock portion are locked to each other, and when the lock member 21 is in the released state, the body 211 and the lock portion are released from each other. Wherein, the body 211 can be the buckle or the bolt, and the locking portion can be with buckle or bolt matched with draw-in groove or screw hole. When the body 211 and the locking portion are locked to each other, the duct guard 40 and the wash duct 30 may be locked to each other to be fixed so that the wash duct 30 can move together with the duct guard 40. And when the body 211 and the locking portion are separated from each other, the duct guard 40 and the wash duct 30 are separated from each other, so that the wash duct 30 and the duct guard 40 can be relatively moved.

One of the body 211 and the locking part may be further installed on the installation seat, and the other may be installed on the cleaning pipe 30, when the body 211 and the locking part are locked with each other, the cleaning pipe 30 and the installation seat are locked with each other, and the installation seat is connected with the pipe guard 40, which may also lock the pipe guard 40 and the cleaning pipe 30 with each other.

In the embodiment, the body 211 includes a fixed portion 22 and a movable portion 23 axially movably connected to the fixed portion 22, and the locking portion is a locking hole 33. When the locking member 21 is in the locked state, the movable portion 23 extends into the locking hole 33 and is fixed in the locking hole 33, so that the body 211 and the locking portion can be locked to each other. When the locking member 21 is in the unlocked state, the movable portion 23 is located outside the locking hole 33, and the body 211 and the locking portion are separated from each other, and the duct guard 40 and the cleaning duct 30 are separated from each other. Alternatively, the movable portion 23 is a threaded rod and the locking hole 33 is a threaded hole that mates with the threaded rod.

Further, referring to fig. 5, the movable portion 23 includes a movable rod 24 axially and circumferentially movably mounted to the fixed portion 22, and a locking block 25 protruding from a side surface of the movable rod 24. The locking hole 33 includes a first portion and a second portion communicating with each other, and the second portion is opened on an inner wall of the first portion and has a notch communicating with the first portion.

When lock member 21 is in the unlocked state, lock block 25 is located outside lock hole 33, and neither movable rod 24 nor lock block 25 can be fixed in lock hole 33, so that body 211 and lock hole 33 are separated from each other, and duct guard 40 and cleaning duct 30 are separated from each other.

When the locking member 21 is in the locking state, the movable rod 24 is inserted into the first portion, and the locking block 25 is inserted into the second portion through the notch. Since the second portion is only connected to the inner wall of the first portion, when the locking block 25 is located at the second portion, the locking block 25 cannot directly leave the locking hole 33 from the second portion, so that the locking block 25 is fixed in the locking hole 33, and the body 211 and the locking hole 33 are locked with each other, and the duct guard 40 and the cleaning duct 30 are also locked with each other. Specifically, when the lock member 21 is changed from the unlocked state to the locked state, the movable rod 24 and the lock block 25 are now aligned with the lock hole 33, so that the movable rod 24 and the lock block 25 are both inserted into the lock hole 25, and then the movable rod 24 is rotated, so that the rotating block 25 is rotated into the second portion from the notch, so that the lock block 15 is clamped in the second portion, and the lock block 21 is changed to the unlocked state.

When the locking member 21 needs to be changed from the locking state to the unlocking state, the movable rod 24 is rotated, so that the locking block 25 rotates to the first part from the notch, the locking block 25 can leave the locking hole 33 from the first part, at the moment, the movable rod 24 is moved in the axial direction, the locking block 25 is pulled out from the locking hole 33, and the locking member 21 is changed to the unlocking state.

Specifically, in the embodiment, the movable portion 23 further includes a limiting block 26 protruding from the side surface of the movable rod 24, the limiting block 26 is located between the locking block 25 and the fixed hole, and the limiting block 26 can abut against the fixed portion 22 during the moving process along with the movable rod 24, so as to prevent the movable rod 24 from moving relative to the fixed hole. The stopper 26 prevents the movable rod 24 from being separated from the fixing hole after the duct guard 40 is separated from the wash duct 30.

Further, stopper 26 and locking block 25 do not coincide in the lengthwise direction of movable rod 24, because the needs of installation, also set up the part that supplies locking block 25 and stopper 26 to pass on the fixed orifices, and because stopper 26 and locking block 25 do not coincide at the lengthwise of movable rod 24 for locking block 25 and stopper 26 can not wear out from the fixed orifices simultaneously, and then avoided movable rod 24 to break away from fixed orifices department.

In a specific embodiment, the movable portion 23 further includes a mounting block 27 and an elastic member 28, the mounting block 27 is mounted on an end of the movable rod 24 away from the locking hole 33, the elastic member 28 is sleeved on the movable rod 24 and located between the mounting block 27 and the fixed portion 22, and the elastic member 28 is in a compressed state. When the movable rod 24 rotates to enable the locking block 25 to be located at the first portion, the locking block 25 is no longer limited by the inner wall of the locking hole 33, the movable rod 24 can return automatically through the compressed elastic piece 28 to bring the locking block 25 out of the locking hole 33, and quick reset of the movable portion 23 is achieved. Further, the position of the movable rod 24 can be kept constant by the compressed spring, preventing the movable rod 24 from entering the locking hole 33 during the rotation of the agitator tank.

In the embodiment, one end of the fixing portion 22 is mounted on the second mounting seat 20, the other end of the fixing portion extends lengthwise in a direction away from the first mounting seat 10, and the locking portion is mounted on an end of the fixing portion 22 away from the second mounting seat 20, so that the locking portion can be as close to the water inlet 32 as possible, that is, the locking portion is as close to the discharge hole of the stirring tank as possible, so that an operator can operate the locking portion.

The embodiment of the invention also provides a concrete mixer truck, which comprises the mixing device 100 in any one of the above embodiments. Since the vehicle includes all technical features of the stirring device 100, the vehicle has all technical effects of the stirring device 100, and will not be described herein again.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A stirring device, characterized in that it comprises:

a stir tank having a stir chamber configured to rotate about a rotation axis;

the mounting seat is mounted in the stirring cavity;

the cleaning pipeline (30) is movably assembled on the mounting seat around the rotating axis, and when the stirring tank drives the mounting seat to move around the rotating axis, the cleaning pipeline (30) and the mounting seat generate circumferential rotation;

wherein the cleaning pipeline (30) is provided with a water inlet (32) and a water outlet (31) which are communicated with each other, and the water outlet (31) is opposite to the wall of the stirring cavity.

2. Stirring device according to claim 1, wherein said mounting seats comprise a first mounting seat (10) and a second mounting seat (20) arranged at a distance in the extension direction of said rotation axis, said washing pipe (30) being rotatably mounted on said first mounting seat (10) and said second mounting seat (20) about said rotation axis.

3. Stirring device according to claim 2, wherein the wall of the stirring chamber comprises a bottom wall and a peripheral wall, the first mounting seat (10) being mounted on the bottom wall and the second mounting seat (20) being connected to the peripheral wall by spokes.

4. The mixing device according to claim 1, further comprising a duct shield (40) and configured to switch between a shielded state in which the duct shield (40) shields the water outlet (31) and an exposed state; in the exposed state, the duct shield (40) exposes the water outlet (31).

5. The mixing apparatus of claim 4, wherein the duct shield (40) is mounted on the mounting, the duct shield (40) being capable of relative movement with the cleaning duct (30) to switch the duct shield (40) between the shielded state and the exposed state;

the stirring device further comprises a locking piece (21), wherein the locking piece (21) can be switched between a locking state and an unlocking state, in the locking state, the locking piece (21) locks the pipeline shield (40) and the cleaning pipeline (30) to limit the pipeline shield (40) to be switched from the shielding state to the exposure state, and in the unlocking state, the pipeline shield (40) is allowed to be switched from the shielding state to the exposure state.

6. The stirring device according to claim 5, wherein said locking member (21) comprises a body (211) and a locking portion, one of said body (211) and said locking portion being mounted on said duct shield (40) or said mounting seat, the other being mounted on said cleaning duct (30);

when the locking piece (21) is in a locking state, the body (211) and the locking part are locked with each other, and when the locking piece (21) is in a separated state, the body (211) and the locking part are separated from each other.

7. The stirring device according to claim 6, characterized in that said body (211) comprises a fixed part (22) and a mobile part (23) axially mobile to said fixed part (22);

the locking part is a locking hole (33), and when the locking piece (21) is in the locking state, the movable part (23) extends into the locking hole (33) and is fixed in the locking hole (33);

when the lock member (21) is in the unlocked state, the movable portion (23) is located outside the lock hole (33).

8. The stirring device according to claim 7, wherein the movable part (23) comprises a movable rod (24) axially and circumferentially movably mounted on the fixed part (22) and a locking block (25) protruding from the side surface of the movable rod (24);

the locking hole (33) comprises a first part and a second part which are communicated with each other, the second part is arranged on the inner wall of the first part and is provided with a notch communicated with the first part;

when locking piece (21) is in when unblock state, locking piece (25) are located locking hole (33) outside, when locking piece (21) are in when the locking state, the movable rod wears to locate first portion, locking piece (25) warp the breach is located the second portion.

9. Stirring device according to claim 8, wherein said movable part (23) further comprises a mounting block (27) and an elastic member (28), said mounting block (27) being mounted on an end of said movable rod (24) facing away from said locking hole (33), said elastic member (28) being sleeved on said movable rod (24) and being located between said mounting block (27) and said fixed part (22), said elastic member (28) being in a compressed state.

10. A concrete mixer truck, characterized in that it comprises a mixing device according to any one of claims 1 to 9.