CN219855224U - Cement sand mixing mixer - Google Patents

Abstract

The utility model relates to the field of cement stirring equipment, and in particular discloses a cement and sandy soil mixing stirrer, which comprises: the stirring hopper comprises a frame, a lifting seat, a blanking assembly, a seat plate, a water bar, a stirring hopper, a stirring shaft and wear-resistant plates, wherein the lifting seat is arranged in the frame and can lift, the seat plate is arranged on the lifting seat, the water bar is arranged on the seat plate, the stirring hopper is arranged on the seat plate in a slidable mode, and the stirring shaft and the wear-resistant plates are arranged at two ends of the stirring hopper. According to the utility model, the water retaining bars are arranged on the seat plate, the stirring hopper moves in the two water retaining bars, water can be prevented from leaking out from the gaps at the side parts of the stirring hopper by the water retaining bars, the two end parts of the stirring hopper are respectively provided with the detachable wear-resistant plates with adjustable height, the wear-resistant plates are made of wear-resistant materials with higher hardness, the wear-resistant plates can be conveniently detached and replaced when worn, the height of the wear-resistant plates after wear can be reduced, so that the contact friction parts at the two ends of the stirring hopper always have good sealing performance, and cement leakage is prevented.

Description

Cement sand mixing mixer

Technical Field

The utility model belongs to the field of cement stirring equipment, and particularly relates to a cement and sandy soil mixing stirrer.

Background

In the process of manufacturing the recycled bricks, the cleaned sand and stone aggregate and cement are required to be fully stirred to form coarse materials, the coarse materials are put into a brick press for pressing, and finally, the coarse materials are baked and formed.

The cement sand mixing stirrer is common equipment for mixing and stirring sand and cement, has more structural types, is usually used for working in a drum-type and box-type mixing stirrer in the building industry, is more uniform and efficient in stirring, is commonly used in the brick making industry, and particularly is in a push-pull type box stirrer because of more convenient and quick feeding and discharging, difficult blocking and drying, and is widely applied.

The friction surface of the stirring box of the existing push-pull box body stirring machine is worn with a supporting plate of equipment in the push-pull process, so that water and even part of cement can leak for a long time, and the water and even part of cement are solidified and bonded on the supporting plate, so that the sealing performance of the friction surface is worse and worse, and the working environment and the service life of the equipment are seriously influenced.

The foregoing background is only for the purpose of providing an understanding of the inventive concepts and technical aspects of the present utility model and is not necessarily prior art to the present application and is not intended to be used as an aid in the evaluation of the novelty and creativity of the present utility model in the event that no clear evidence indicates that such is already disclosed at the date of filing of the present application.

Disclosure of Invention

The utility model aims to provide a cement and sandy soil mixing stirrer, so that the defects that the friction surface is large in long-term friction abrasion and poor in tightness when the stirring box moves, and cement is easy to leak to cause solidification and adhesion are overcome.

In order to achieve the above object, the present utility model provides a cement and sand mixing mixer, comprising: the lifting seat is provided with a seat plate, the seat plate comprises a first end and a second end which are opposite, two water blocking strips which are parallel to each other are arranged on the seat plate, and two ends of each water blocking strip extend to the first end and the second end respectively; the blanking component is fixedly arranged on the frame and is positioned above the seat plate; the stirring hopper is arranged between the two water bars, the stirring hopper is provided with a first feeding hole and a first discharging hole which are mutually communicated, the first feeding hole faces the blanking assembly, the first discharging hole faces the seat plate, a plurality of rotatable stirring shafts are arranged between the first feeding hole and the first discharging hole, a first driving assembly is arranged between the stirring hopper and the seat plate, and the first driving assembly can drive the stirring hopper to move towards the first end and enable a part of the first discharging hole to extend outwards from the first end; two ends of the stirring hopper, which correspond to the first end and the second end, are respectively provided with a detachable wear-resistant plate, the height of the wear-resistant plate is adjustable, and the bottom of the wear-resistant plate is mutually abutted with the seat plate.

Preferably, in the above technical scheme, a lifting adjusting assembly is further provided on the frame, and the lifting adjusting assembly includes: the lifting device comprises a lifting seat, a lifting column, a lifting bolt, a lifting nut, a lifting bolt and a first locking nut, wherein one end of the lifting column is fixed on the frame, the other end of the lifting column is provided with the lifting bolt, the threaded end of the lifting bolt is in threaded connection with the lifting column, the nut end of the lifting bolt is in butt joint with the bottom of the lifting seat, and the lifting bolt is provided with the first locking nut; the support seat is fixedly arranged on the frame and is provided with a through hole; the support stud is fixedly connected with the bottom of the lifting seat at one end, the other end of the support stud penetrates through the through hole in a sliding mode, a second locking nut and a third locking nut are arranged on the support stud, and the support seat is located between the second locking nut and the third locking nut.

Preferably, in the above technical solution, the blanking assembly includes: the blanking hopper comprises a second feeding hole and a second discharging hole which are communicated with each other, and the second discharging hole is opposite to the seat plate; the sliding cover is rotationally connected with the blanking hopper and seals the second discharging port; the blanking driving motor is arranged on the frame, the output end of the blanking driving motor is connected with one end of the crank, the other end of the crank is rotationally connected with one end of the sliding cover through the connecting rod, and when the output end of the driving motor rotates, the sliding cover can be driven by the crank and the connecting rod to rotate, so that the second discharge port is opened or closed.

Preferably, in the above technical solution, a detachable scraper is provided at the second discharge port, an edge of the scraper is abutted to the sliding cover, and a distance between the edge of the scraper and the sliding cover is adjustable.

Preferably, in the above technical scheme, the device further comprises a blanking plate, one end of the blanking plate is fixedly connected with the first end, the other end of the blanking plate extends obliquely downwards and gradually reduces in width, and two sides of the blanking plate are bent upwards.

Preferably, in the above technical scheme, the water guide device further comprises a water guide plate, wherein the middle of the water guide plate is recessed downwards, one side of the water guide plate is fixedly connected with the second end, and two ends of the water guide plate extend towards two sides of the seat plate.

Preferably, in the above technical solution, the first driving assembly includes: the hydraulic cylinder, the first connecting seat and the second connecting seat; the first connecting seat is fixedly arranged on the seat plate, the second connecting seat is fixedly connected with the stirring hopper, the cylinder body of the hydraulic cylinder is rotationally connected with the first connecting seat, and the telescopic rod of the hydraulic cylinder is rotationally connected with the second connecting seat.

Preferably, in the above technical solution, the guide assembly further includes: the guide rails are symmetrically arranged on two sides of the stirring hopper and are parallel to the water retaining bars; the guide wheel is fixedly connected with the seat plate through a wheel seat, and is clamped into the guide rail and can rotate.

Preferably, in the above technical solution, each stirring shaft is provided with a plurality of stirring paddles, each stirring paddle is disposed at intervals along an axis of the stirring shaft, and positions of the stirring paddles on two adjacent stirring shafts are staggered with each other.

Preferably, in the above technical scheme, one end of each stirring shaft is provided with a first transmission gear, each first transmission gear is meshed with each other, a transmission shaft is further arranged on the stirring hopper, one end of the transmission shaft is provided with a second transmission gear meshed with the first transmission gear, the middle part of the transmission shaft is provided with a third transmission gear, the second end is provided with a transmission motor, the axis of an output shaft of the transmission motor is perpendicular to the axis of the transmission shaft and is provided with a fourth transmission gear, and the fourth transmission gear is meshed with the third transmission gear.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the cement and sandy soil mixing mixer, the water retaining bars are arranged on the seat plate, the mixing hopper moves in the two water retaining bars, water can be prevented from leaking out of a gap at the side part of the mixing hopper by the water retaining bars, the two end parts of the mixing hopper are respectively provided with the detachable wear-resistant plates with adjustable heights, the wear-resistant plates are made of wear-resistant materials with high hardness, the wear-resistant plates can be conveniently detached and replaced when worn, the height of the wear-resistant plates can be reduced after wear, and therefore good tightness of contact friction parts at the two ends of the mixing hopper is ensured all the time, and leakage of cement is prevented.

2. The lifting adjusting component can adjust the height of the lifting seat, so that the distance between the stirring hopper and the blanking component can be changed according to the viscosity of different materials and the requirements of dust conditions, the rotating jacking column is used for adjusting and determining the specific height of the lifting seat, and then the heights of the lifting seat and the stirring hopper can be locked and fixed through the supporting studs, the second locking nut and the third locking nut.

3. The circular arc-shaped sliding cover is arranged at the second discharge hole of the blanking hopper in the blanking assembly, the circular arc surface is of a structure which can enable the second discharge hole to be opened or closed more easily when the second discharge hole is slightly viscous, and the scraping plate arranged at the second discharge hole can scrape the cement adhered inside the sliding cover to reduce the viscosity.

4. The blanking plate can play a role in pouring materials, and the structure with the middle concave can also effectively prevent the side leakage of the materials; the circular arc-shaped water guide plate can play a role in guiding and discharging water oozed out of the stirring hopper to two sides of the stirring hopper.

5. The guide assembly comprises the guide wheel and the guide rail, wherein the guide wheel can be clamped in the C-shaped guide rail, and can limit the rotation and displacement of the stirring hopper in the vertical direction.

6. The stirring shaft is provided with the spike-shaped stirring paddles, and the positions of the stirring paddles are staggered, so that the stirring effect can be improved, and cement and aggregate are mixed more fully and uniformly.

7. According to the utility model, the stirring shafts are mutually meshed for synchronous rotation through the plurality of first transmission gears, and the transmission motor can be arranged at the second end of the stirring hopper through the mutual matching between the transmission shaft and the third transmission gear and the fourth transmission gear in a bevel gear form, so that the installation space is saved, the stirring shafts and the hydraulic cylinders are intensively arranged, the structure is more compact, and the protection device is arranged at the position where the transmission part is positioned in the later stage.

Drawings

FIG. 1 is a block diagram of a cement and sandy soil mixer of the utility model.

Fig. 2 is a structural view of the frame and the elevating seat.

Fig. 3 is a structural view of the stirring hopper and the guide assembly.

FIG. 4 is a view of the structure of the mixing bowl and guide assembly at another angle.

The main reference numerals illustrate:

100-frames;

200-lifting seats, 210-seat plates, 211-first ends, 212-second ends, 220-water retaining strips, 230-blanking plates and 240-water guide plates;

300-blanking assembly;

400-stirring hopper, 410-first feed inlet, 420-first discharge outlet, 430-stirring shaft, 431-stirring paddle, 432-first transmission gear, 433-transmission shaft, 434-second transmission gear, 435-third transmission gear, 436-transmission motor, 437-fourth transmission gear, 450-wear plate;

500-of a lifting adjusting assembly, 510-of a jacking column, 520-of a jacking bolt, 530-of a first locking nut, 540-of a supporting seat, 560-of a supporting stud, 570-of a second locking nut and 580-of a third locking nut;

600-first drive assembly, 610-hydraulic cylinder, 620-first connection seat, 630-second connection seat;

700-guiding component, 710-guiding track, 720-guiding wheel, 730-wheel seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "transverse"

The references to "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The terms "first," "second," "third," and the like, if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

As shown in fig. 1, 2, 3 and 4, the cement and sand mixer in this embodiment includes: the machine frame 100, the lifting seat 200, the seat plate 210, the first end 211, the second end 212, the water bar 220, the blanking assembly 300, the stirring bucket 400, the first feed inlet 410, the first discharge outlet 420, the stirring shaft 430, the stirring paddle 431, the first transmission gear 432, the transmission shaft 433, the second transmission gear 434, the third transmission gear 435, the transmission motor 436, the fourth transmission gear 437, the wear plate 450, the top column 510, the top bolt 520, the first lock nut 530, the support seat 540, the support stud 560, the second lock nut 570, the third lock nut 580, the first driving assembly 600, the hydraulic cylinder 610, the first connection seat 620, the second connection seat 630, the guide assembly 700, the guide rail 710, the guide wheel 720 and the wheel seat 730.

The frame 100 is a box-type frame structure, in which a lifting seat 200 is installed, the outer dimensions of the lifting seat 200 are matched with the inner space of the frame 100 to enable the lifting seat 200 to move up and down in the frame 100, the lifting seat 200 is also a box-type frame structure, a seat plate 210 is installed at the bottom of the lifting seat 200, the seat plate 210 comprises a first end 211 and a second end 212 which are opposite, two water blocking strips 220 which are parallel to each other and are arranged in an outward protruding manner are welded on the seat plate 210, and two ends of the water blocking strips 220 extend to the first end 211 and the second end 212 respectively; the blanking plate 230 and the water guide plate 240 are respectively installed at the first end 211 and the second end 212, one end of the blanking plate 230 is fixedly connected with the first end 211, the other end of the blanking plate 230 extends obliquely downwards and the width of the blanking plate is gradually reduced, the guard plates on two sides of the blanking plate 230 are bent upwards, the middle part of the water guide plate 240 is recessed downwards in an arc shape, one side of the water guide plate 240 is fixedly connected with the second end 212, and two ends of the water guide plate 240 extend towards two sides of the seat plate 210.

In addition, a lifting adjusting assembly 500 is further provided on the frame 100, which includes: top post 510, support base 540, and support stud 560; one end of the jacking column 510 is fixedly welded on the frame 100, the other end of the jacking column 510 extends upwards and is provided with a jacking bolt 520, the threaded end of the jacking bolt 520 is in threaded connection with the jacking column 510, the nut end of the jacking bolt 520 is abutted with the bottom of the lifting seat 200, and the jacking bolt 520 is provided with a first locking nut 530 for locking after the length of the jacking bolt 520 is adjusted; the four supporting seats 540 are symmetrically and fixedly welded on the frame 100, and the supporting seats 540 are provided with through holes; one end of the support stud 560 is fixedly welded with the bottom of the lifting seat 200, the other end of the support stud 560 passes through the through hole in a slidable manner, a second lock nut 570 and a third lock nut 580 are mounted on the support stud 560, the support seat 540 is located between the second lock nut 570 and the third lock nut 580, and after the second lock bolt and the third lock bolt are simultaneously tightened towards the direction of the support seat 540, the support stud 560 can be locked and fixed.

A blanking assembly 300 is also mounted on the frame 100, the blanking assembly 300 is positioned above the seat plate 210, and the blanking assembly 300 comprises a blanking hopper, a sliding cover and a blanking driving motor; the blanking hopper is fixedly connected with the frame 100 and comprises a second feeding hole and a second discharging hole which are communicated with each other, the second feeding hole is positioned above the second discharging hole, the second discharging hole is opposite to the seat plate 210, and the caliber of the second discharging hole is smaller than that of the second discharging hole and gradually narrowed; the sliding cover is a circular arc-shaped plate-shaped mechanism and is rotationally connected with the blanking hopper, and the inner walls at the two ends of the sliding cover are mutually abutted with the two edges of the opening part of the second discharging port so as to cover the second discharging port; the blanking driving motor is installed at the top of the frame 100, a connecting component of a crank connecting rod structure is installed between the blanking driving motor and the sliding cover, the output end of the blanking driving motor is connected with one end of the crank, the other end of the crank is rotationally connected with one end of the sliding cover through the connecting rod, and when the output end of the driving motor rotates, the sliding cover can be driven by the crank and the connecting rod to be attached to a second discharging port to rotate, so that the second discharging port is opened or closed.

In addition, install detachable scraper blade respectively at the both ends of second discharge gate, the scraper blade is made by rubber material, and the edge and the sliding closure butt of scraper blade, and the scraper blade passes through layering and bolt to be installed on the blanking hopper, and the distance between the edge of scraper blade and the sliding closure is adjustable.

The bottom of the stirring bucket 400 is in mutual abutting connection with the top surface of the seat plate 210 and can slide on the seat plate 210, the stirring bucket 400 is positioned between the two water retaining bars 220, the stirring bucket 400 is of a cuboid structure, a first feed port 410 is formed in the top of the stirring bucket 400, a first discharge port 420 is formed in the bottom of the stirring bucket, the first feed port 410 and the first discharge port 420 are mutually communicated, the first feed port 410 faces the blanking assembly 300, the first discharge port 420 faces the seat plate 210, a plurality of rotatable stirring shafts 430 are arranged between the first feed port 410 and the first discharge port 420, the axes of the stirring shafts 430 are mutually parallel, a plurality of stirring paddles 431 are arranged on each stirring shaft 430 at intervals along the axes of the stirring shafts 430, the end parts of the stirring paddles 431 outwards extend from the side parts of the stirring shafts 430, and the positions of the stirring paddles 431 on the two adjacent stirring shafts 430 are mutually staggered; the first drive gears 432 are coaxially arranged at one end of each stirring shaft 430, the first drive gears 432 are mutually meshed, the transmission shaft 433 is further arranged on the stirring hopper 400, the second drive gear 434 mutually meshed with the first drive gears 432 is arranged at one end of the transmission shaft 433, the third drive gear 435 is arranged in the middle of the transmission shaft 433, the drive motor 436 is arranged at the second end 212, the axis of the output shaft of the drive motor 436 is mutually perpendicular to the axis of the transmission shaft 433, the fourth drive gear 437 is arranged on the output shaft of the drive motor 436, and the fourth drive gear 437 and the third drive gear 435 are of a bevel gear structure and mutually meshed.

A first driving assembly 600 is installed between the end of the stirring hopper 400 facing the second end 212 and the seat plate 210, and the first driving assembly 600 can drive the stirring hopper 400 to move towards the first end 211 and enable a part of the first discharging hole 420 to extend outwards from the first end 211, so that materials fall from the first discharging hole 420; two detachable wear plates 450 are respectively arranged at two ends of the stirring hopper 400 corresponding to the first end 211 and the second end 212, a plurality of vertically arranged long waist holes are formed in the wear plates 450 and are connected with the ends of the stirring hopper 400 through bolts, so that the height of the wear plates 450 is adjustable, and the bottoms of the wear plates 450 are made of metal materials with higher hardness and are mutually abutted against the seat plates 210.

Specifically, the first driving assembly 600 includes: a hydraulic cylinder 610, a first connection mount 620, and a second connection mount 630; the first connecting seat 620 is fixedly welded on the base plate 210, the second connecting seat 630 is fixedly welded with the end part of the stirring hopper 400, the cylinder body of the hydraulic cylinder 610 is rotationally connected with the first connecting seat 620, and the telescopic rod of the hydraulic cylinder 610 is rotationally connected with the second connecting seat 630.

In addition, a guide assembly 700 is further installed between the stirring hopper 400 and the base plate 210, and the guide assembly 700 includes: the two guide rails 710 and the guide wheel 720 are symmetrically and fixedly arranged at two sides of the stirring hopper 400 respectively, the guide rails 710 are parallel to the water retaining bars 220, the cross section of the guide rails 710 is C-shaped, and the opening is outwards; the guide wheel 720 is fixedly connected with the seat plate 210 through the wheel seat 730, and the guide wheel 720 is clamped in the guide rail 710 and can rotate.

Next, the working principle of a cement and sand mixer according to this embodiment will be described in detail, so that those skilled in the art will more understand the present utility model:

during operation, aggregate is discharged into the blanking hopper by discharging equipment, then the sliding cover is driven to be opened by the blanking driving motor, so that the aggregate falls into the stirring hopper 400, cement is injected into the stirring hopper 400, the driving motor 436 drives the stirring shaft 430 to drive the stirring paddle 431 to rotate, the aggregate and the cement are fully stirred and mixed, finally the hydraulic cylinder 610 drives the blanking hopper to extend outwards from the first end 211, the mixed material is guided to be blanked by the blanking plate 230, water seeped out by the cement flows in the two water retaining strips 220, when the hydraulic cylinder 610 drives the stirring hopper 400 to recover, the water can be pushed into the water guide plate 240 to flow out, so that a working area is kept clean, the abrasion is received below the abrasion-resistant plate 450 after the stirring hopper is used for a period of time, the lower edge of the abrasion-resistant plate 450 is mutually attached to the plate surface of the base plate 210, and the sealing performance of the stirring hopper 400 is kept continuously.

In summary, in the cement and sand mixing mixer of this embodiment, by providing the water retaining bars 220 on the seat board 210, the mixing hopper 400 moves in the two water retaining bars 220, the water retaining bars 220 can prevent water from leaking out from the gaps at the sides of the mixing hopper 400, the two ends of the mixing hopper 400 are respectively provided with the detachable and height-adjustable wear-resistant plates 450, the wear-resistant plates 450 are made of wear-resistant materials with higher hardness, and when the wear-resistant plates wear, the wear-resistant plates 450 can be conveniently detached and replaced, and the height of the wear-resistant plates 450 can also be reduced after wear, so that the contact friction parts at the two ends of the mixing hopper 400 always have good tightness, thereby preventing cement from leaking.

The foregoing description of specific exemplary embodiments of the utility model has been presented for the purpose of illustration and description, but it is not intended to limit the utility model to the precise form disclosed, and it is apparent that many changes and modifications may be made in accordance with the above teachings, and while embodiments of the utility model have been shown and described, this specific embodiment is merely illustrative of the utility model and not restrictive, the particular features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner, the exemplary embodiments being selected and described for the purpose of explaining the specific principles of the utility model and its practical application, so that modifications, substitutions, variations, and various other changes may be made to the embodiments without creatively departing from the principles and spirit of the utility model as desired by those skilled in the art without departing from the scope of the patent claims.

Claims (10)

1. A cement and sandy soil mixing mixer, comprising:

the lifting seat is provided with a seat plate, the seat plate comprises a first end and a second end which are opposite, two water blocking strips which are parallel to each other are arranged on the seat plate, and two ends of each water blocking strip extend to the first end and the second end respectively;

the blanking component is fixedly arranged on the frame and is positioned above the seat plate;

the stirring hopper is arranged between the two water bars, the stirring hopper is provided with a first feeding hole and a first discharging hole which are mutually communicated, the first feeding hole faces the blanking assembly, the first discharging hole faces the seat plate, a plurality of rotatable stirring shafts are arranged between the first feeding hole and the first discharging hole, a first driving assembly is arranged between the stirring hopper and the seat plate, and the first driving assembly can drive the stirring hopper to move towards the first end and enable a part of the first discharging hole to extend outwards from the first end; two ends of the stirring hopper, which correspond to the first end and the second end, are respectively provided with a detachable wear-resistant plate, the height of the wear-resistant plate is adjustable, and the bottom of the wear-resistant plate is mutually abutted with the seat plate.

2. The cement and sandy soil mixing mixer of claim 1, further comprising a lifting adjustment assembly on the frame, comprising:

the lifting device comprises a lifting seat, a lifting column, a lifting bolt, a lifting nut, a lifting bolt and a first locking nut, wherein one end of the lifting column is fixed on the frame, the other end of the lifting column is provided with the lifting bolt, the threaded end of the lifting bolt is in threaded connection with the lifting column, the nut end of the lifting bolt is in butt joint with the bottom of the lifting seat, and the lifting bolt is provided with the first locking nut;

the support seat is fixedly arranged on the frame and is provided with a through hole;

the support stud is fixedly connected with the bottom of the lifting seat at one end, the other end of the support stud penetrates through the through hole in a sliding mode, a second locking nut and a third locking nut are arranged on the support stud, and the support seat is located between the second locking nut and the third locking nut.

3. The cement and sand mixing mixer of claim 1 wherein the blanking assembly comprises:

the blanking hopper comprises a second feeding hole and a second discharging hole which are communicated with each other, and the second discharging hole is opposite to the seat plate;

the sliding cover is rotationally connected with the blanking hopper and seals the second discharging port;

the blanking driving motor is arranged on the frame, the output end of the blanking driving motor is connected with one end of the crank, the other end of the crank is rotationally connected with one end of the sliding cover through the connecting rod, and when the output end of the driving motor rotates, the sliding cover can be driven by the crank and the connecting rod to rotate, so that the second discharge port is opened or closed.

4. A cement and sandy soil mixing mixer according to claim 3, wherein a detachable scraper is arranged at the second discharge hole, the edge of the scraper is abutted against the sliding cover, and the distance between the edge of the scraper and the sliding cover is adjustable.

5. The cement and sandy soil mixing mixer of claim 1, further comprising a blanking plate, wherein one end of the blanking plate is fixedly connected with the first end, the other end of the blanking plate extends obliquely downwards and gradually reduces in width, and two sides of the blanking plate are bent upwards.

6. The cement and sand mixing mixer of claim 1 further comprising a water guide plate, wherein the middle of the water guide plate is recessed downward, one side of the water guide plate is fixedly connected with the second end, and two ends of the water guide plate extend to two sides of the seat plate.

7. The cement sand mixer of claim 1 wherein the first drive assembly comprises: the hydraulic cylinder, the first connecting seat and the second connecting seat; the first connecting seat is fixedly arranged on the seat plate, the second connecting seat is fixedly connected with the stirring hopper, the cylinder body of the hydraulic cylinder is rotationally connected with the first connecting seat, and the telescopic rod of the hydraulic cylinder is rotationally connected with the second connecting seat.

8. The cement and sand mixer of claim 1 further comprising a guide assembly comprising:

the guide rails are symmetrically arranged on two sides of the stirring hopper and are parallel to the water retaining bars;

the guide wheel is fixedly connected with the seat plate through a wheel seat, and is clamped into the guide rail and can rotate.

9. The cement and sandy soil mixing mixer according to claim 1, wherein each stirring shaft is provided with a plurality of stirring paddles, each stirring paddle is arranged at intervals along the axis of the stirring shaft, and the positions of the stirring paddles on two adjacent stirring shafts are staggered.

10. The cement and sandy soil mixing mixer according to claim 1, wherein one end of each stirring shaft is respectively provided with a first transmission gear, each first transmission gear is meshed with each other, a transmission shaft is further arranged on the stirring hopper, one end of the transmission shaft is provided with a second transmission gear meshed with the first transmission gear, the middle part of the transmission shaft is provided with a third transmission gear, the second end is provided with a transmission motor, the axis of an output shaft of the transmission motor is mutually perpendicular to the axis of the transmission shaft and is provided with a fourth transmission gear, and the fourth transmission gear is meshed with the third transmission gear.