CN212498312U - Prevent stifled concrete mixer of using - Google Patents

Prevent stifled concrete mixer of using Download PDF

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Publication number
CN212498312U
CN212498312U CN202020951196.3U CN202020951196U CN212498312U CN 212498312 U CN212498312 U CN 212498312U CN 202020951196 U CN202020951196 U CN 202020951196U CN 212498312 U CN212498312 U CN 212498312U
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China
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pipe
tank
axis
stirring
agitator
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Active
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CN202020951196.3U
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Chinese (zh)
Inventor
陈新
姜春黎
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China Metallurgical Construction Engineering Group Co Ltd
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China Metallurgical Construction Engineering Group Co Ltd
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Abstract

The utility model discloses a concrete mixer for preventing blockage, which comprises a mixing tank, wherein the top of the mixing tank is provided with a feed inlet and a water injection pipe, the top of the mixing tank is provided with a driving motor, a mixing frame is arranged in the mixing tank, and the mixing frame is in driving connection with a driving shaft of the driving motor; the agitator tank bottom has rather than the row's of arranging material pipe that sets up with the central line, arranges that material pipe upper portion mouth of pipe communicates with each other in the agitator tank, be provided with the axis of rotation on its axis direction in the discharge tube, axis of rotation upper end and stirring frame fixed connection, the outer peripheral face of axis of rotation extends along the central line direction spiral of axis of rotation and is equipped with helical blade, helical blade and axis of rotation fixed connection, helical blade and row's material intraductal wall are separated by the setting, it is equipped with the valve to arrange the material pipe end. The utility model discloses can prevent effectively that the phenomenon of stifled pipe from appearing in the mixer when row material.

Description

Prevent stifled concrete mixer of using
Technical Field
The utility model relates to a mixer technical field, concretely relates to prevent stifled concrete mixer that uses.
Background
The concrete mixer is a mechanical structure which mixes and mixes cement, gravel aggregate and water according to a certain proportion to prepare a concrete mixture. The concrete mixer is an important part in the engineering construction process, particularly for small-sized building engineering in cities, towns and villages, the one-time demand for concrete is not small, and the construction cost is high if commercial concrete is poured, so the concrete mixer is used for mixing and configuring the concrete on site.
The existing concrete mixer is generally divided into a horizontal mixer or a vertical mixer, and for the vertical concrete mixer, when the materials are mixed, the materials are easily piled at the bottom of the mixer under the action of self gravity, so that the materials can not be fully mixed, the difficulty of subsequent cleaning work can be increased, and the use is inconvenient. And vertical concrete mixer in the in-service use in-process often still can appear the discharge gate department and easily take place material ejection of compact blocking to cause the problem of discharge gate putty, thereby often can lead to the cement solidification because the stirring dispersion is not enough at concrete mixer's in-process, thereby lead to the discharge gate department to take place easily and block up, thereby lead to the unable ejection of compact of mixer. Therefore, it is necessary to find a concrete mixer for preventing blockage.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: the utility model provides a prevent stifled concrete mixer of using can effectively prevent that the phenomenon of stifled pipe from appearing in the mixer when row material.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a concrete mixer for preventing blockage comprises a mixing tank, wherein a feed inlet and a water injection pipe are formed in the top of the mixing tank, a driving motor is installed on the top of the mixing tank, a mixing frame is arranged in the mixing tank, and the mixing frame is in driving connection with a driving shaft of the driving motor; the agitator tank bottom has rather than the row's of arranging material pipe that sets up with the central line, arranges that material pipe upper portion mouth of pipe communicates with each other in the agitator tank, be provided with the axis of rotation on its axis direction in the discharge tube, axis of rotation upper end and stirring frame fixed connection, the outer peripheral face of axis of rotation extends along the central line direction spiral of axis of rotation and is equipped with helical blade, helical blade and axis of rotation fixed connection, helical blade and row's material intraductal wall are separated by the setting, it is equipped with the valve to arrange the material pipe end.
This mixer is in the use, at first with cement, sand and stone drop into the agitator tank through the dog-house according to certain ratio, then utilize the water injection pipe to water injection in the agitator tank, the water yield is confirmed according to the actual ratio of concrete, in the water injection, driving motor drives the agitator frame and rotates in the agitator tank, the agitator frame makes the material intensive mixing in the agitator tank even, at the in-process of agitator frame stirring, the helical blade of agitator frame lower extreme rotates along with the agitator frame is synchronous, helical blade evenly mixs the material in the discharge tube, guarantee that the material in the discharge tube does not solidify. When the material in the agitator tank mixes a period, and after the intensive mixing, open the terminal valve of row material pipe, arrange the material, at the in-process of arranging the material, driving motor continues to keep rotatory, it is rotatory to drive the helical blade in the row material pipe, under helical blade's rotating action, helical blade self has the conveying pipeline function, not only can guarantee to arrange the intraductal effectual conveying pipeline that carries on of material, and helical blade's rotating action down the convection current carries out the disturbance through the concrete of arranging the material pipe, effectively prevent to arrange the material pipe phenomenon of jam, simultaneously because the cross sectional area who arranges the material pipe is less, arrange the material in-process, helical blade carries out the secondary stirring at the intraductal concrete that is equivalent to of row material, can also further improve the workability of concrete. The rotation direction of the helical blades can enable the concrete entering the discharge pipe to be transported towards the discharge direction of the discharge pipe.
Therefore, in the scheme, the helical blade coaxially connected with the tail end of the stirring frame is arranged in the discharge pipe, and concrete in the discharge pipe is stirred by the helical blade in the stirring process of the stirring tank, so that the material in the discharge pipe is prevented from being solidified; more importantly, at the in-process that the mixer was arranged the material, under the rotation effect of arranging helical blade in the material pipe, not only can guarantee to arrange the intraductal effectual defeated material of material, can also break up the concrete of arranging the material pipe that flows through, effectively prevent to arrange that the material pipe phenomenon of blockking up appears, also can further carry out the secondary stirring to the concrete of being ejection of compact, improve the workability of concrete.
As optimization, the agitator frame include with the pivot that the agitator tank concentric line set up, the upper end of pivot with driving motor's drive shaft drive is connected, the lower extreme of pivot with the agitator tank inner bottom surface be separated by the setting and with axis of rotation fixed connection, the axle of pivot is provided with many mutual parallel puddlers along the even interval of its central line direction on one's body, and the puddler is horizontal extension and its central line and pivot fixed connection, in the agitator tank with the pivot central line is provided with vertical extension's scraper blade for symmetry axis symmetry, and two scraper blades place plane and the central line of pivot are located the coplanar, the both ends of puddler respectively with two scraper blade fixed connection, the scraper blade is back to one side laminating of pivot on the inner wall of agitator tank, the upper and lower both ends of scraper blade respectively with the setting is separated by in to the interior top surface and the interior bottom surface of agitator tank.
Like this, the agitator is connected with driving motor output shaft drive through vertical pivot, then the pivot drives many horizontal puddlers and stirs the concrete in the agitator tank, makes the concrete stirring in the agitator tank even. Through setting up the scraper blade on the agitator frame, the agitator can clear up the inner wall all around of agitator tank when stirring concrete, prevents that material from piling up and adhesion on the agitator tank inner wall, avoids the waste of material, has reduced the work degree of difficulty of the follow-up clearance of agitator tank simultaneously.
Preferably, the inner bottom surface of the stirring tank is an arc surface which is concave downwards and is arranged along the same central line with the stirring tank.
Like this, set up to the concave surface through the bottom with the agitator tank, arrange the in-process of material at the agitator tank like this, concrete in the agitator tank is changeed under the slope effect of concave surface, changes to the mouth of pipe department of arranging the material pipe of central point department and removes, makes things convenient for the row of agitator tank to work like this.
As optimization, a plurality of bottom scraping pieces are uniformly distributed on the circumferential surface of the lower end of the rotating shaft in the circumferential direction, the bottom scraping pieces extend horizontally and are arranged vertically, one end of each bottom scraping piece is fixedly connected with the rotating shaft, the other end of each bottom scraping piece is arranged at a position, separated from the pipe wall of the stirring tank, of the bottom scraping piece, and the side edge of one side, facing the inner bottom surface of the stirring tank, of the bottom scraping piece is attached to the inner bottom surface of.
Therefore, through the bottom scraping blade, when the mixer is used for mixing concrete, the concrete at the bottom in the mixing tank can keep fluidity under the stirring action of the bottom scraping blade, and the concrete at the discharging pipe is not easy to block. In addition, the radian of the bottom scraping blade is matched with the radian of the inner wall of the bottom of the stirring tank, and the cross section of the scraping blade is arranged in an arc shape, so that the bottom scraping blade is better attached to the inner wall of the bottom of the stirring tank, and the subsequent cleaning work of the stirring tank is easier.
As optimization, a plurality of overflowing holes are uniformly formed in the stirring rod and the bottom scraping blade along the length direction of the stirring rod and at equal intervals, and the overflowing holes are cross holes.
Like this, because the agitator frame stirs the in-process at the concrete to the agitator tank, the agitator frame receives the resistance of concrete material great relatively, in order to reduce the resistance that bears of agitator frame, through the crossing hole that a plurality of levels set up is offered to the equal interval on the jam-proof plate of puddler and bottom at the agitator frame, can carry out some reposition of redundant personnel effect to the concrete like this, reduced the agitator frame and rotated the resistance that receives, the agitator frame is more non-deformable like this, the life of agitator frame has been improved.
As optimization, a support flat plate is arranged below the stirring tank, the support flat plate and the stirring tank are arranged at intervals, a plurality of vertical support rods are arranged between the bottom of the stirring tank and the support flat plate, and the upper end and the lower end of each support rod are fixedly connected with the bottom of the stirring tank and the support flat plate respectively; install the universal wheel of taking the dead function of lock all around supporting dull and stereotyped bottom, arrange the row material pipe end and pass in supporting the dull and stereotyped and stretch out to supporting dull and stereotyped below, and arrange the material pipe end and be located between universal wheel bottom wheel face and the supporting flat board bottom.
Like this, because can relate to longer construction line in building engineering, in order to reduce the transport distance of mixing the concrete now, consequently this concrete mixer passes through the universal wheel that agitator tank bottom set up, can follow the needs of construction line and carry out synchronous motion, reduces the transport distance of mixing the concrete now, removes to fix the lock to the universal wheel after targetting in place, along with stopping mixing, it is very convenient to use.
As optimization, the feeding port is funnel-shaped.
Like this, the dog-house is funnel type, and is uncovered great, for the material feeding of more convenient stirring.
To sum up, the beneficial effects of the utility model reside in that: in the scheme, the helical blade coaxially connected with the tail end of the stirring frame is arranged in the discharge pipe, so that concrete in the discharge pipe is stirred by the helical blade in the stirring process of the stirring tank, and the material in the discharge pipe is prevented from being solidified; more importantly, at the in-process that the mixer was arranged the material, under the rotation effect of arranging helical blade in the material pipe, not only can guarantee to arrange the intraductal effectual defeated material of material, can also break up the concrete of arranging the material pipe that flows through, effectively prevent to arrange that the material pipe phenomenon of blockking up appears, also can further carry out the secondary stirring to the concrete of being ejection of compact, improve the workability of concrete.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of a in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Reference numerals in the drawings of the specification include: the device comprises a support flat plate 1, universal wheels 3, a stirring tank 4, a driving motor 5, a feeding port 6, a water injection pipe 7, a stirring frame 8, a scraping plate 9, a bottom scraping plate 10, an overflowing hole 11, a spiral blade 12, a discharging pipe 13, a valve 14 and a support rod 15.
In the concrete mixer for preventing blockage in the specific embodiment, as shown in fig. 1 and 2, the concrete mixer comprises a mixing tank 4, wherein a feeding port 6 and a water injection pipe 7 are formed in the top of the mixing tank 4, a driving motor 5 is installed on the top of the mixing tank 4, a mixing frame 8 is arranged in the mixing tank 4, and the mixing frame 8 is in driving connection with a driving shaft of the driving motor 5; 4 bottoms of agitator tank have rather than the row's of the same central line setting material pipe 13, arrange that material pipe 13 upper portion mouth of pipe communicates with each other in with agitator tank 4, be provided with the axis of rotation on its axis direction in arranging material pipe 13, axis of rotation upper end and stirring frame 8 fixed connection, the outer peripheral face of axis of rotation extends along the central line direction spiral of axis of rotation and is equipped with helical blade 12, helical blade 12 and axis of rotation fixed connection, helical blade 12 and row material pipe 13 inner wall are separated by the setting, arrange material pipe 13 end and be equipped with valve 14.
This mixer is in the use, at first with cement, sand and stone drop into agitator tank 4 through dog-house 6 according to certain ratio in, then utilize water injection pipe 7 to the water injection in agitator tank 4, the water yield is confirmed according to the actual ratio of concrete, in the water injection, driving motor 5 drives agitator frame 8 at 4 internal rotations of agitator tank, agitator frame 8 makes the material intensive mixing in agitator tank 4 even, at the in-process of agitator frame 8 stirring, helical blade 12 of agitator frame 8 lower extreme rotates along with agitator frame 8 is synchronous, helical blade 12 carries out even stirring to the material of arranging in the material pipe 13, guarantee to arrange the material unconsolidation in the material pipe 13. When the material in agitator tank 4 mixes a period of time, and after the intensive mixing, open the valve 14 of arranging the tail end of material pipe 13, arrange the material, at the in-process of arranging the material, driving motor 5 continues to keep rotatory, it is rotatory to drive helical blade 12 of arranging in the material pipe 13, under helical blade 12's rotation effect, helical blade 12 self has the conveying function, not only can guarantee to arrange effectual defeated material in the material pipe 13, and helical blade 12's rotation effect carries out the disturbance to the concrete of flowing through row material pipe 13 down, effectively prevent to arrange that material pipe 13 from appearing the phenomenon of jam, simultaneously because the cross sectional area of arranging material pipe 13 is less, arrange the material in-process, helical blade 12 is equivalent to carrying out the secondary mixing to the concrete in arranging material pipe 13, can also further improve the peaceability of concrete. The direction of rotation of the helical blades 12 is such that concrete entering the discharge pipe 13 is transported in the discharge direction of the discharge pipe 13.
Therefore, in the scheme, the helical blade 12 coaxially connected with the tail end of the stirring frame 8 is arranged in the discharge pipe 13, and the helical blade 12 is used for stirring concrete in the discharge pipe 13 in the stirring process of the stirring tank 4, so that the material in the discharge pipe 13 is prevented from being solidified; more importantly, at the in-process that the mixer was arranged the material, under the rotation effect of helical blade 12 in arranging material pipe 13, not only can guarantee to arrange effectual defeated material in the material pipe 13, can also break up the concrete of arranging material pipe 13 of flowing through, effectively prevent to arrange that material pipe 13 from appearing the phenomenon of jam, also can further carry out the secondary mixing to the concrete of being the ejection of compact, improve the workability of concrete.
In a specific embodiment, the stirring frame 8 comprises a rotating shaft which is arranged along the same central line as the stirring tank 4, the upper end of the rotating shaft is in driving connection with the driving shaft of the driving motor 5, the lower end of the rotating shaft is arranged at a distance from the inner bottom surface of the stirring tank 4 and is fixedly connected with the rotating shaft, a plurality of stirring rods which are parallel to each other are uniformly arranged on the shaft body of the rotating shaft along the direction of the central line thereof at intervals, the stirring rods extend transversely and the central lines thereof are fixedly connected with the rotating shaft, use in agitator tank 4 the pivot central line is provided with vertical extension's scraper blade 9 for symmetry axis symmetry, and two scraper blades 9 place planes are located the coplanar with the central line of pivot, the both ends of puddler respectively with two scraper blade 9 fixed connection, scraper blade 9 back to one side laminating of pivot is on agitator tank 4's inner wall, the upper and lower both ends of scraper blade 9 respectively with agitator tank 4's interior top surface and interior bottom surface are separated by the setting.
Like this, the agitator 8 is connected with 5 output shaft drives of driving motor through vertical pivot, then the pivot drives many horizontal puddlers and stirs the concrete in agitator tank 4, makes the concrete stirring in the agitator tank 4 even. Through setting up scraper blade 9 on agitator frame 8, the mixer is when stirring concrete, and scraper blade 9 can clear up agitator tank 4 inner wall all around, prevents that material pile and adhesion from on agitator tank 4 inner wall, avoids the waste of material, has reduced the work degree of difficulty of the follow-up clearance of agitator tank 4 simultaneously.
In a specific embodiment, the inner bottom surface of the stirring tank 4 is a circular arc surface which is concave downwards and is arranged on the same center line with the stirring tank 4.
Like this, set up to the concave surface through the bottom with agitator tank 4, arrange the in-process of material at agitator tank 4 like this, concrete in agitator tank 4 is changeed under the slope effect of concave surface, changes to the mouth of pipe department of arranging material pipe 13 of central point department and removes, makes things convenient for the row of agitator tank 4 material work like this.
In a specific embodiment, a plurality of bottom scraping pieces 10 are uniformly distributed on the circumferential surface of the lower end of the rotating shaft in the circumferential direction, the bottom scraping pieces 10 extend horizontally and are arranged vertically, one end of each bottom scraping piece 10 is fixedly connected with the rotating shaft, the other end of each bottom scraping piece is arranged at a position separated from the pipe wall of the stirring tank 4, and one side edge of each bottom scraping piece 10, which faces the inner bottom surface of the stirring tank 4, is attached to the inner bottom surface of the stirring tank 4.
Thus, when the mixer is mixing concrete, the bottom scraper 10 keeps the fluidity of the concrete at the bottom of the mixing tank 4 by the mixing action of the bottom scraper 10, so that the concrete at the discharge pipe is not likely to be agglomerated. In addition, the radian of the bottom scraping blade 10 is matched with the radian of the inner wall of the bottom of the stirring tank 4, and the cross section of the scraping blade 9 is arranged in an arc shape, so that the bottom scraping blade 10 is better attached to the inner wall of the bottom of the stirring tank 4, and the subsequent cleaning work of the stirring tank 4 is easier.
In a specific embodiment, a plurality of overflowing holes 11 are uniformly formed in the stirring rod and the bottom scraping blade 10 at equal intervals along the length direction of the stirring rod and the bottom scraping blade respectively, and the overflowing holes 11 are transverse holes.
Like this, because the agitator 8 is stirring the in-process to the concrete in agitator tank 4, agitator 8 receives the resistance of concrete material great relatively, in order to reduce the resistance that bears of agitator 8, through the overflow hole 11 that a plurality of levels set up is offered to the equal interval on the jam-proof board of the puddler of agitator 8 and bottom, can carry out partly reposition of redundant personnel effect to the concrete like this, the resistance that agitator 8 rotated and received has been reduced, agitator 8 more non-deformable like this, the life of agitator 8 has been improved.
In a specific embodiment, a support flat plate 1 is arranged below the stirring tank 4, the support flat plate 1 and the stirring tank 4 are arranged at intervals, a plurality of vertical support rods 15 are arranged between the bottom of the stirring tank 4 and the support flat plate, and the upper end and the lower end of each support rod 15 are respectively fixedly connected with the bottom of the stirring tank 4 and the support flat plate 1; install all around the dull and stereotyped bottom of support universal wheel 3 of dead function of area lock, arrange the tail end of material pipe 13 and pass in the support flat board and stretch out to support flat board below, and arrange the tail end of material pipe 13 and be located between 3 bottom wheel faces of universal wheel and the support flat board bottom.
Like this, because can relate to longer construction line in building engineering, in order to reduce the transport distance of mixing the concrete now, consequently this concrete mixer passes through universal wheel 3 that agitator tank 4 bottom set up, can follow the needs of construction line and carry out synchronous motion, reduces the transport distance of mixing the concrete now, removes to fix the lock to universal wheel 3 after targetting in place, along with stopping mixing, it is very convenient to use.
In the specific implementation process, the feeding port 6 is in a funnel shape.
Like this, dog-house 6 is funnel type, and the uncovered is great, for the material feeding of more convenient stirring.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A concrete mixer for preventing blockage comprises a mixing tank, wherein a feed inlet and a water injection pipe are formed in the top of the mixing tank, a driving motor is installed on the top of the mixing tank, a mixing frame is arranged in the mixing tank, and the mixing frame is in driving connection with a driving shaft of the driving motor; the method is characterized in that: the agitator tank bottom has rather than the row's of arranging material pipe that sets up with the central line, arranges that material pipe upper portion mouth of pipe communicates with each other in the agitator tank, be provided with the axis of rotation on its axis direction in the discharge tube, axis of rotation upper end and stirring frame fixed connection, the outer peripheral face of axis of rotation extends along the central line direction spiral of axis of rotation and is equipped with helical blade, helical blade and axis of rotation fixed connection, helical blade and row's material intraductal wall are separated by the setting, it is equipped with the valve to arrange the material pipe end.
2. The concrete mixer for preventing blockage according to claim 1, wherein: the agitator frame include with the pivot that the agitator tank set up with the central line, the upper end of pivot with driving motor's drive shaft drive is connected, the lower extreme of pivot with the agitator tank bottom surface be separated by the setting and with axis of rotation fixed connection, the axle of pivot is provided with many parallel puddlers each other along the even interval of its central line direction on one's body, the puddler is for horizontal extension and its central line and pivot fixed connection, in the agitator tank with the pivot central line is provided with vertical extension's scraper blade for symmetry axis symmetry, and two scraper blade place planes are located the coplanar with the central line of pivot, the both ends of puddler respectively with two scraper blade fixed connection, the scraper blade is dorsad one side laminating of pivot on the inner wall of agitator tank, the upper and lower both ends of scraper blade respectively with the setting is separated by of inner top surface and the interior bottom surface of agitator tank.
3. The concrete mixer for preventing blockage according to claim 1, wherein: the inner bottom surface of the stirring tank is an arc surface which is concave downwards and is arranged along the same central line with the stirring tank.
4. The concrete mixer for preventing blockage according to claim 2, wherein: the stirring tank is characterized in that a plurality of bottom scraping pieces are uniformly distributed on the circumferential surface of the lower end of the rotating shaft in the circumferential direction, the bottom scraping pieces extend horizontally and are arranged vertically, one end of each bottom scraping piece is fixedly connected with the rotating shaft, the other end of each bottom scraping piece is separated from the pipe wall of the stirring tank, and the bottom scraping pieces face the inner bottom surface of the stirring tank and are attached to the inner bottom surface of the stirring tank on the side edge of one side.
5. The concrete mixer for preventing blockage according to claim 4, wherein: a plurality of overflowing holes are uniformly formed in the stirring rod and the bottom scraping blade at equal intervals in the length direction of the stirring rod and the bottom scraping blade respectively, and the overflowing holes are cross holes.
6. The concrete mixer for preventing blockage according to claim 1, wherein: a support flat plate is arranged below the stirring tank, the support flat plate and the stirring tank are arranged at intervals, a plurality of vertical support rods are arranged between the bottom of the stirring tank and the support flat plate, and the upper end and the lower end of each support rod are fixedly connected with the bottom of the stirring tank and the support flat plate respectively; install the universal wheel of taking the dead function of lock all around supporting dull and stereotyped bottom, arrange the row material pipe end and pass in supporting the dull and stereotyped and stretch out to supporting dull and stereotyped below, and arrange the material pipe end and be located between universal wheel bottom wheel face and the supporting flat board bottom.
7. The concrete mixer for preventing blockage according to claim 1, wherein: the feeding port is funnel-shaped.
CN202020951196.3U 2020-05-29 2020-05-29 Prevent stifled concrete mixer of using Active CN212498312U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020951196.3U CN212498312U (en) 2020-05-29 2020-05-29 Prevent stifled concrete mixer of using

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Application Number Priority Date Filing Date Title
CN202020951196.3U CN212498312U (en) 2020-05-29 2020-05-29 Prevent stifled concrete mixer of using

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CN212498312U true CN212498312U (en) 2021-02-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113547638A (en) * 2021-07-28 2021-10-26 甘肃建筑职业技术学院 Building concrete construction is with carrying equipment of pouring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113547638A (en) * 2021-07-28 2021-10-26 甘肃建筑职业技术学院 Building concrete construction is with carrying equipment of pouring

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