CN111168847A

CN111168847A - Small-sized portable cement mixer

Info

Publication number: CN111168847A
Application number: CN201911161123.2A
Authority: CN
Inventors: 罗诚; 郑素文
Original assignee: Linhai Hengming Machinery Co Ltd
Current assignee: Linhai Hengming Machinery Co Ltd
Priority date: 2020-04-12
Filing date: 2020-04-12
Publication date: 2020-05-19

Abstract

The invention provides a small portable cement mixer, which comprises a mixing tank, wherein a feeding device is arranged above the mixing tank, a sieve plate device is arranged below the feeding device, a water guide device is arranged below the sieve plate device, a mixing device is arranged below the water guide device, a bottom surface with a discharge port is arranged below the mixing device, a discharge device is arranged at the lower end of the discharge port, a transmission gear set is arranged at one side of the discharge device, a double water inlet device is also arranged at the periphery of the mixing tank, a one-way conduction device is arranged on the double water inlet device, and a viewing port with a cover is also arranged at the other side of the sieve plate device, the working efficiency of the motor is improved.

Description

Small-sized portable cement mixer

Technical Field

The invention belongs to the technical field of mechanical equipment and construction industry, and particularly relates to a small portable cement mixer.

Background

Cement is one of the most main building materials, and cement is fully stirred before using, is favorable to subsequent laying work of cement, and the main stirring mode of present stage adopts the motor to drive the (mixing) shaft and rotates, utilizes the blade on the (mixing) shaft further to stir cement for cement and water intensive mixing.

For example, chinese patent literature discloses a cement mixer [ application No.: 201810557012.2, the invention discloses a cement mixer, which comprises a nozzle, a feed hopper, an annular water pipe, a cross rod, a mixer body, a mixing blade, a valve, a discharge pipe, a first gear, a mixing rod, a support column, a motor, a connecting rod, a scraper, a second gear, a rotating shaft, a water pumping pipe, a water inlet, a water pump, a water tank and a bottom plate. The invention has the beneficial effects that: a circle of spray heads are added at the feed inlet, so that dust during feeding can be effectively inhibited, raw material waste is reduced, and the working environment of workers is improved; the two stirring rods are adopted, so that the stirring speed is increased, and the stirring is more uniform; the scraper blade can rotate along with the axis of rotation, and the design of scraper blade and the laminating of mixer body inner wall makes the cement that glues and glues at the mixer body inner wall among the stirring process can be scraped, has reduced the raw materials extravagant, has cleared up mixer body inner wall simultaneously, has reduced workman's working strength.

The cement mixer in the scheme utilizes the spray head to prevent dust raising, easily causes cement in water mist in the environment, has great pollution and consumes great energy.

Disclosure of Invention

The invention aims to solve the problems and provides a small portable cement mixer, which realizes that a mixing box and a mixing device run in different directions, so that mixing is more sufficient, kinetic energy generated by a motor is fully used, and the working efficiency of the motor is improved.

In order to achieve the purpose, the invention adopts the following technical scheme: a small-sized portable cement mixer comprises a mixing tank, a feeding device is arranged above the mixing tank, a sieve plate device is arranged below the feeding device, the sieve plate device comprises a limiting plate arranged on the inner wall of the mixing tank, a water guide device is arranged below the limiting plate, the mixing device is arranged below the water guide device, a bottom surface with a discharge hole is arranged below the mixing device, a blocking valve is arranged on the discharge hole, a discharge device is arranged below the blocking valve, a transmission gear set is arranged on one side of the discharge device, the transmission gear set comprises a driving wheel arranged on a rotating shaft, the rotating shaft is connected with a motor arranged in a base through a coupler, a gear mounting seat is arranged above the base, a universal wheel with a clamping block is arranged below the base, a water tank is arranged on one side of the sieve plate device, the water tank pass through first water pipe and two water installations and link to each other, two water installations on install the one-way device that switches on, sieve device opposite side still be provided with the visual mouth of taking the lid.

Preferably, the feeding device comprises a feeding bin, a plurality of fixedly installed blades are arranged at the lower end of the feeding bin, two symmetrically distributed opening and closing devices are arranged above the blades and comprise hinge columns arranged on the feeding bin, sealing plates are hinged to the hinge columns, hinge holes matched with the hinge columns are formed in the sealing plates, a first elastic piece is arranged at the lower end of each sealing plate, and the front end of the first elastic piece is fixedly connected with the feeding bin.

Preferably, the sieve plate device comprises a sieve plate which is arranged below the blades and provided with a plurality of sieve holes, a second elastic part is arranged at the lower end of the sieve plate, and the front end of the second elastic part is fixedly connected with the limiting plate.

Preferably, the water guide device comprises a water guide disc fixedly arranged at the top end of the rotating shaft, a water guide groove is formed in the water guide disc, and a through hole is formed in the water guide disc.

As preferred, agitating unit including install in the stirring rake of water guide dish below, the stirring rake include with pivot fixed connection's paddle mount pad, the paddle mount pad on install a plurality of paddles, the paddle on be equipped with a plurality of churning columns, the churning column on be provided with the scraper blade, the scraper blade front end be equipped with along the pivot to the scraper blade that agitator tank inner wall direction thickness reduces gradually, just the scraper blade front end with agitator tank inner wall closely laminate, the churning column on still seted up the helicla flute.

Preferably, the discharging device comprises a funnel arranged on the base, an inclined plane is arranged below the funnel, and a discharging pipeline is arranged at the front end of the inclined plane.

Preferably, the transmission gear set comprises an internal gear fixedly arranged at the bottom of the stirring box, the internal gear is in meshing transmission with the driving wheel through a transmission wheel, and the transmission wheel is fixedly arranged on the gear mounting seat.

Preferably, the double water inlet device comprises a first water pipe connected with the first water pipe, the first water pipe is provided with a plurality of first water inlet pipes, the first water inlet pipes are arranged above the water guide disc, the water inlet device further comprises a second water pipe connected with the first water pipe through second water pipes, the second water pipe is provided with a plurality of second water inlet pipes, the second water inlet pipes are arranged below the stirring paddle, and the second water inlet pipes are arranged in the one-way conduction device.

Preferably, the one-way conduction device comprises a blocking ball arranged at the pipe orifice of the second water inlet pipe, a third elastic part is fixedly connected to one side of the blocking ball, and the front end of the third elastic part is tightly connected with the inner wall of the second water inlet pipe.

Compared with the prior art, the invention has the advantages that:

1. internal gear fixed mounting is in the agitator tank bottom surface in the drive gear group, action wheel and pivot fixed connection for the (mixing) shaft is opposite with agitator tank operation direction, makes cement stirring more abundant in the agitator tank.

2. The setting of two water installations for intake simultaneously from upper and lower both sides, make cement and water fully contact, and the one-way device that switches on of installation on the second inlet tube has avoided cement to block first delivery port.

3. The water guide device is arranged, centrifugal force generated by rotation is utilized, so that water does not move in a non-directional mode, and the wall surface of the stirring box is flushed by water flow while water is in full contact with cement.

4. The setting of headstock gear among the feed arrangement neither influences the feeding, can make the feeding separate with external environment again, optimizes operational environment, opens and close the dress lower extreme and is equipped with the blade, utilizes the gravity that the cement whereabouts produced for cement is directly cut by the blade and is opened, accomplishes the tear material process.

5. The design of sieve in the sieve device utilizes the elastic force of second elastic component to make the sieve shake from top to bottom to make powdered cement and cement bag separation, and the condition is piled up with cement to the cement bag on the sieve can be observed to the visual viewport of taking the lid that sieve device one side set up, and can follow and see that the viewport takes out the cement bag.

6. The stirring column that sets up on the agitating unit makes the stirring more abundant, and the helicla flute of seting up on the stirring column can prevent the cement adhesion on the stirring column, and the scraper that sets up on the stirring column can accomplish the cleanness of agitator tank inner wall in the stirring, prevents that the cement adhesion is on the agitator tank inner wall.

Drawings

FIG. 1 is a structural view of a small portable cement mixer according to the present invention.

FIG. 2 is a sectional view showing the structure of a small portable cement mixer according to the present invention.

FIG. 3 is a sectional view of a compact portable cement mixer according to the present invention.

Fig. 4 is a sectional view of a feeding device provided by the present invention.

Fig. 5 is a cross-sectional view of a unidirectional flux device provided in the present invention.

In the figure, a stirring box 1, a discharge port 11, a bottom surface 12, a blocking valve 13, a feeding device 2, a feeding bin 21, a blade 22, an opening and closing device 23, a hinged column 24, a sealing plate 25, a hinged hole 26, a first elastic member 27, a sieve plate device 3, a limiting plate 31, a sieve hole 32a, a sieve plate 32, a second elastic member 33, a stirring device 4, a stirring paddle 41, a paddle mounting seat 42, a paddle 43, a stirring column 44, a spiral groove 44a, a scraper 45, a scraper 46, a discharging device 5, a funnel 51, an inclined plane 52, a discharging pipeline 53, a double water inlet device 6, a first water pipe 61, a first water inlet pipe 61a, a second water pipe 62, a second water inlet pipe 62a, a one-way conduction device 7, a blocking ball 71, a third elastic member 72, a water guide device D, a water guide disc D1, a water guide groove D2, a through hole D3, a transmission gear set C, a driving wheel C34, C2, an internal gear 3, a rotating, Base Z2, motor Z3, gear mount Z4, universal wheel L, fixture block L1, water tank A, first water pipe A1, second water pipe A2, view port B and cover B1.

Detailed Description

As shown in fig. 1, 2, 3, 4 and 5, a small portable cement mixer comprises a mixing tank 1, a feeding device 2 is arranged above the mixing tank 1, a sieve plate device 3 is arranged below the feeding device 2, the sieve plate device 3 comprises a limit plate 31 arranged on the inner wall of the mixing tank 1, the limit plate 31 in the small portable cement mixer is fixedly arranged on the inner wall of the mixing tank 1 by welding, the outer diameter of the limit plate 31 is consistent with the diameter D of the mixing tank 1, the inner diameter of the limit plate 31 is 90% -95% of the diameter D of the mixing tank 1, a water guide device D is arranged below the limit plate 31, a mixing device 4 is arranged below the water guide device D, a bottom 12 with a discharge port 11 is arranged below the mixing device 4, a blocking valve 13 is arranged on the discharge port 11, a discharge device 5 is arranged below the blocking valve 13, in the small portable cement mixer, the bottom 12 has an inclination angle of 15-30 degrees, the discharge port 11 is arranged on the lowest surface of the bottom surface 12, the diameter d1 of the discharge port 11 is 20-30% of the diameter d of the stirring tank 1, the blocking valve 13 can be arranged in a cylindrical shape, the diameter of the blocking valve 13 is 120-130% of the diameter d1, the blocking valve 13 is provided with a circular outlet 13a, the diameter of the outlet 13a is 90-95% of the diameter of the blocking valve 13, the front end of the blocking valve 13 is provided with a cylindrical connecting column 13b, the front end of the connecting column 13b is provided with a handle 13C, the central axis of the handle 13C is parallel to the central axis of the outlet 13a (namely when the central axis of the handle 13C is vertical, the discharge port 11 is communicated with the discharging device 5), one side of the discharging device 5 is provided with a transmission gear set C, the transmission gear set C comprises a driving wheel C1 arranged on a rotating shaft Z, the rotating shaft Z is connected with a motor Z3, base Z2 below is provided with universal wheel L who takes fixture block L1, sieve device 3 one side is provided with water tank A, water tank A links to each other with two water installations 6 through first water pipe A1, install one-way conduction device 7 on two water installations 6, sieve device 3 opposite side still is provided with the view mouth B of taking lid B1, the lower extreme height of seeing mouth B in this device is unanimous with sieve device 3 sieve 31 height maintenance when being in free state, it sets up to releasable connection with lid B1 to see view mouth B, and lid B1 can adopt transparent ya keli board material to make.

Specifically, the feeding device 2 comprises a feeding bin 21, a plurality of blades 22 fixedly installed are arranged at the lower end of the feeding bin 21, two symmetrically distributed opening and closing devices 23 are arranged above the blades 22, each opening and closing device 23 comprises a hinge column 24 arranged on the feeding bin 21, a sealing plate 25 is hinged on each hinge column 24, hinge holes 26 matched with the hinge columns 24 are formed in each sealing plate 25, a first elastic piece 27 is arranged at the lower end of each sealing plate 25, the front end of each first elastic piece 27 is fixedly connected with the feeding bin 21, the feeding bin 21 can be a rectangular column which is communicated up and down, the length of the side of each rectangle is 45% -50% of the diameter d of the stirring box 1, the wall thickness of the feeding bin 21 can be 2-3 cm, the opening and closing devices 23 are arranged on two symmetrical side surfaces of the rectangular column, the length of the side of each sealing plate 25 is consistent with the length of the side of the inner wall of the rectangular column, the, the opening and closing device 23 is closed, the blade 22 is fixedly arranged on the bottom surface of the feeding bin 21, and the fixing mode can adopt a welding mode.

Further say, sieve plate device 3 is including setting up in the sieve 32 that has a plurality of sieve pores 32a of blade 22 below, sieve 32 lower extreme is equipped with second elastic component 33, second elastic component 33 front end and limiting plate 31 fixed connection, in this device, the diameter and the agitator tank diameter d of sieve 32 keep unanimous, 3 ~ 5cm are got to the sieve pore 32a diameter that sets up on the

sieve

32, and 1 ~ 2cm is got to the distance between the sieve pore 32a, second elastic component 33 one end welds the up end of limiting plate 31, the lower extreme of other end welding and sieve 32.

Specifically, the water guide device D comprises a water guide disc D1 fixedly mounted at the top end of the rotating shaft Z, a water guide groove D2 is formed in the water guide disc D1, a through hole D2 is further formed in the water guide disc D1, the water guide disc D1 in the device is characterized in that the water guide disc D1 in the device can be designed to be conical, the diameter of a conical surface from top to bottom is gradually increased, the maximum diameter of the conical surface is 80% -90% of the inner diameter of the stirring box 1, the water guide groove D2 is arranged along the conical surface, and the width of the water guide groove and the diameter of the through hole D2 can be set to be 3.

Further, the stirring device 4 includes a stirring paddle 41 installed below the water guide disc D1, the stirring paddle 41 includes a paddle installation seat 42 fixedly connected with the rotating shaft Z, the fixing mode of the paddle installation seat 42, the driving wheel C1, the water guide disc D1 and the rotating shaft Z in the device can be installed in a key and key slot mode, the paddle installation seat 42 is provided with a plurality of paddles 43, the paddles 43 are provided with a plurality of stirring columns 44, the stirring columns 44 are provided with a scraper 45, the front end of the scraper 45 is provided with a scraper 46 gradually reducing in thickness along the rotating shaft Z to the inner wall direction of the stirring box 1, the front end of the scraper 46 is tightly attached to the inner wall of the stirring box 1, the stirring column 44 is further provided with a spiral groove 44a, in the device, the number of the stirring columns 44 can be set according to the area of the paddles 43, and the scraper 46 is arranged on the outermost periphery of the paddles 43.

Specifically, the discharging device 5 includes a funnel 51 disposed on a base Z2, the diameter of the funnel 51 is gradually reduced from top to bottom, the funnel 51 is welded on the base Z2, an inclined plane 52 is disposed below the funnel 51, a discharging pipe 53 is disposed at the front end of the inclined plane 52, and the discharging pipe 53 is fixedly mounted on a side round surface of the base Z2.

Specifically, the transmission gear set C comprises an internal gear C2 fixedly mounted at the bottom of the stirring box 1, an internal gear C2 is welded with the bottom surface of the stirring box 1, an internal gear C2 is in meshing transmission with a driving wheel C1 through a transmission wheel C3, and a transmission wheel C3 is fixedly mounted on a gear mounting base Z4.

Further, the double water inlet device 6 comprises a first water pipe 61 connected with a first water pipe a1, a plurality of first water inlet pipes 61a are arranged on the first water pipe 61, the first water inlet pipes 61a are arranged above the water guide disc D1, the water inlet device 6 further comprises a second water pipe 62 connected with the first water pipe 61 through a second water pipe a2, the second water pipe 62 is provided with a plurality of second water inlet pipes 62a, the second water inlet pipes 62a are arranged below the stirring paddle 41, the second water inlet pipes 62a are internally installed in the one-way conduction device 7, in the device, the first water pipe 61 and the second water pipe 62 are fixedly installed on the outer side surface of the stirring box 1, the fixed installation mode can select the welding mode, the first water inlet pipes 61a are arranged below the limiting plate 31, the first water inlet pipes 61a are tangent to the limiting plate 31, the second water inlet pipes 62a are arranged above the highest surface of the bottom surface 12, and a second inlet pipe 62a is disposed below the paddle 43.

More specifically, the one-way conduction device 7 includes a blocking ball 71 disposed at the nozzle of the second water inlet pipe 62a, the diameter of the blocking ball 71 is 110% -120% of the diameter of the second water inlet pipe 62a, a third elastic member 72 is fixedly connected to one side of the blocking ball 71, the front end of the third elastic member 72 is closely connected to the inner wall of the second water pipe 62, the third elastic member 72 is transversely distributed, one end of the third elastic member 72 is welded to one side of the blocking ball 71, the other end of the third elastic member 72 is welded to the inner wall of the second water inlet pipe 62a, and the first elastic member 27, the second elastic member 33 and the third elastic member 72 mentioned in the device are all set as springs.

The working principle is as follows: under the action of the universal wheel L, the small portable cement mixer is pushed to a designated position, a clamping block L1 on the universal wheel L is pressed, cement is thrown in from the upper port of the feeding bin 21, a sealing plate 25 of the opening and closing device 23 is opened under the action of gravity, the cement falls on the blade 22 and is scratched, meanwhile, under the action of the first elastic element 27, the sealing plate 25 is closed, the cement falls on the sieve plate 32, the sieve plate 32 shakes up and down under the action of the cement and the action of the second elastic element 33, cement powder falls on a water guide disc D1 through a hole D2 on the water guide disc D1, part of the cement powder enters the mixing box 1 through a through hole D2 on the water guide disc D1, after the cement is added, a motor Z3 is opened, the rotating shaft Z and the motor Z3 rotate in the same direction, the driving wheel C1 is driven, the driving wheel C1 drives a sieve mesh driving wheel C3 to rotate, and the C2 meshed with, and the internal gear C2 drives the stirring box 1 to synchronously operate, the water box A is opened, water flows into the first water delivery pipe 61, the first water inlet pipe 61a, the second water pipe A2, the second water delivery pipe 62 and the second water inlet pipe 62a from the water box A through the first water pipe A1 in sequence and then flows into the stirring box 1, the water flow of the first water inlet pipe 61a flows onto the water guide disc D1, the water guide disc D1 operates under the action of the rotating shaft Z, the water flow does not flow in a non-directional manner under the action of centrifugal force generated by the operation of the water guide disc D1, meanwhile, the water flow passes through the second water inlet pipe 62a, the one-way conduction device 7 is conducted under the action of water flow impact force, the water flow flows into the stirring box 1 through the one-way conduction device 7, the stirring device 4 operates under the action of the motor Z3, the stirring column 44 synchronously stirs cement, the cement is stirred, the stirring of the cement is completed, the stirring, the scraper 46 arranged, after the stirring, motor Z3, water tank A are closed, the handle 13c of blocking valve 13 is rotated for handle 13c the central axis is parallel with agitator tank 1 the central axis, discharge gate 11 and discharging device 5 switch on each other, make cement flow out from discharging device 5's ejection of compact pipeline, and after cement flowed out completely, water tank A and motor Z were opened again, accomplished agitator tank 1's cleanness.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the stirring tank 1, the discharge port 11, the bottom surface 12, the blocking valve 13, the feeding device 2, the feeding bin 21, the blade 22, the opening and closing device 23, the hinge post 24, the sealing plate 25, the hinge hole 26, the first elastic member 27, the sieve plate device 3, the limiting plate 31, the sieve hole 32a, the sieve plate 32, the second elastic member 33, the stirring device 4, the stirring paddle 41, the paddle mount 42, the paddle 43, the stirring post 44, the spiral groove 44a, the scraping plate 45, the scraping knife 46, the discharging device 5, the funnel 51, the inclined surface 52, the discharging pipe 53, the double water inlet device 6, the first water pipe 61, the first water inlet pipe 61a, the second water pipe 62, the second water inlet pipe 62a, the one-way conducting device 7, the blocking ball 71, the third elastic member 72, the water guide device D, the water guide disk D1, the water guide groove D2, the through hole D3, the transmission gear set C, the driving gear C1, the internal gear C2, the, The terms of the rotating shaft Z, the coupling Z1, the base Z2, the motor Z3, the gear mounting base Z4, the universal wheel L, the fixture block L1, the water tank A, the first water pipe A1, the second water pipe A2, the viewing port B, the cover B1 and the like do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

Claims

1. The utility model provides a small-size portable cement mixer, includes agitator tank (1), its characterized in that: agitator tank (1) top be provided with feed arrangement (2), feed arrangement (2) below be provided with sieve device (3), sieve device (3) including setting up in limiting plate (31) of agitator tank (1) inner wall, limiting plate (31) below be provided with water guide device (D), water guide device (D) below be equipped with agitating unit (4), agitating unit (4) below be provided with bottom surface (12) of taking discharge gate (11), discharge gate (11) on be equipped with block valve (13), block valve (13) below be provided with discharging device (5), discharging device (5) one side be provided with transmission gear group (C), transmission gear group (C) including installing action wheel (C1) on pivot (Z), pivot (Z) link to each other through shaft coupling (Z1) and motor (Z3) of installing in base (Z2), base (Z2) top be provided with gear mount pad (Z4), base (Z2) below be provided with universal wheel (L) of taking fixture block (L1), sieve plate device (3) one side be provided with water tank (A), water tank (A) link to each other with two water installations (6) through first water pipe (A1), two water installations (6) on install one-way device (7) that leads to, sieve plate device (3) opposite side still be provided with the view mouth (B) of taking lid (B1).

2. A compact portable cement mixer according to claim 1, wherein: feed arrangement (2) including feeding storehouse (21), feeding storehouse (21) lower extreme be equipped with a plurality of fixed mounting's blade (22), blade (22) top be equipped with two symmetric distribution's headstock gear (23), headstock gear (23) including setting up hinge post (24) on feeding storehouse (21), hinge post (24) on articulated have closing plate (25), closing plate (25) on be equipped with hinge post (24) hinge hole (26) of mutually supporting, closing plate (25) lower extreme be equipped with first elastic component (27), first elastic component (27) front end with feeding storehouse (21) fixed connection.

3. A compact portable cement mixer according to claim 2, wherein: sieve device (3) including set up in blade (22) below sieve (32) that have a plurality of sieve meshes (32 a), sieve (32) lower extreme be equipped with second elastic component (33), second elastic component (33) front end with limiting plate (31) fixed connection.

4. A compact portable cement mixer according to claim 1, wherein: the water guide device (D) comprises a water guide disc (D1) fixedly mounted at the top end of the rotating shaft (Z), a water guide groove (D2) is formed in the water guide disc (D1), and a through hole (D2) is further formed in the water guide disc (D1).

5. A compact portable cement mixer according to claim 4, wherein: agitating unit (4) including install in water guide dish (D1) below stirring rake (41), stirring rake (41) include with pivot (Z) fixed connection's paddle mount pad (42), paddle mount pad (42) on install a plurality of paddle (43), paddle (43) on be equipped with a plurality of churning columns (44), churning columns (44) on be provided with scraper blade (45), scraper blade (45) front end be equipped with along pivot (Z) to agitator tank (1) inner wall direction thickness scraper (46) that reduce gradually, just scraper blade (46) front end with agitator tank (1) inner wall closely laminate, churning column (44) on still seted up helicla flute (44 a).

6. A compact portable cement mixer according to claim 1, wherein: discharging device (5) including set up in base (Z2) on funnel (51), funnel (51) below be provided with inclined plane (52), inclined plane (52) front end be provided with ejection of compact pipeline (53).

7. A compact portable cement mixer according to claim 1, wherein: the transmission gear set (C) comprises an internal gear (C2) fixedly installed at the bottom of the stirring box (1), the internal gear (C2) is in meshing transmission with the driving wheel (C1) through a transmission wheel (C3), and the transmission wheel (C3) is fixedly installed on the gear installation seat (Z4).

8. A compact portable cement mixer according to claim 5, wherein: the double water inlet device (6) comprises a first water pipe (61) connected with the first water pipe (A1), a plurality of first water inlet pipes (61 a) are arranged on the first water pipe (61), the first water inlet pipes (61 a) are arranged above the water guide disc (D1), the water inlet device (6) further comprises a second water pipe (62) connected with the first water pipe (61) through a second water pipe (A2), the second water pipe (62) is provided with a plurality of second water inlet pipes (62 a), the second water inlet pipes (62 a) are arranged below the stirring paddle (41), and the second water inlet pipes (62 a) are internally installed in the one-way conduction device (7).

9. A compact portable cement mixer according to claim 8, wherein: the one-way conduction device (7) comprises a blocking ball (71) arranged at the pipe orifice of the second water inlet pipe (62 a), one side of the blocking ball (71) is fixedly connected with a third elastic part (72), and the front end of the third elastic part (72) is tightly connected with the inner wall of the second water conveying pipe (62).