CN213260279U

CN213260279U - Concrete mixing device

Info

Publication number: CN213260279U
Application number: CN202020822805.5U
Authority: CN
Inventors: 周正鹏; 周子方; 周佳佳; 周正洪; 周正青; 倪唯一; 周志浜; 周子明; 张华英; 郑章丹
Original assignee: Shanghai Haofeng Concrete Co ltd
Current assignee: Shanghai Haofeng Concrete Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-05-25
Anticipated expiration: 2030-05-15

Abstract

The utility model relates to a concrete mixing device, the on-line screen storage device comprises a base, fixed connection is in the pillar of base upper end, fixed connection is in the dead lever of pillar upper end, fixed connection is in the bull gear of dead lever outer end, the joint is in the agitator of bull gear inner wall, fixed connection is in the support column of base up end, fixed connection is in the play hopper of support column upper end, place the water tank of base up end and be used for driving the power supply unit of water feeding pump on the water tank, erect in the base up end and be close to the income hopper of agitator one side, it is equipped with the spray pipe to go into hopper pan feeding mouth edge, a plurality of hole for water spraying has been seted up on the spray pipe, spray pipe water inlet one end is connected with the inlet tube, the inlet tube other end communicates to on the water feeding pump, wet. The automatic feeding device has the advantages that raw materials are not easy to damage during feeding, the residual materials in the feeding hopper are quickly cleaned, the raw material waste is reduced, and dust is not easy to harm human bodies during feeding.

Description

Concrete mixing device

Technical Field

The utility model belongs to the technical field of machining's technique and specifically relates to a concrete mixing device is related to.

Background

The concrete mixing device is a machine for mixing and stirring cement, gravel aggregate and water into a concrete mixture, and is widely applied to the construction industry.

The patent of current grant publication No. CN215146224U and name for a concrete self-oscillation mixer discloses a concrete mixer, and this concrete mixer includes mixer body and lower hopper, is fixed at the back of lower hopper to be equipped with and beats the device, beats the device and includes drive motor, shaft coupling and the bent axle link mechanism that is used for beating lower hopper, beats lower hopper through the reciprocating motion that power supply unit drove the bent axle link, makes the raw materials that remain at the feeder hopper through beating the vibration entering churn.

The above prior art solutions have the following drawbacks: carry out pan feeding and clearance through the mode of beating into the hopper, can cause to damage also can cause dry raw materials dust to fly upward simultaneously to hopper and raw materials down to a certain extent during the long-term use, also can cause certain influence to the health after operating personnel inhales too much dust, can't ensure the raw materials integrality also cause the waste of raw materials simultaneously and harm that operating personnel is healthy when being under construction for a long time and using.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a do not damage the raw materials during pan feeding, do not cause dry raw materials to fly upward and also conveniently clear up a concrete mixing device of going into hopper defective material simultaneously.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a concrete mixing device comprises a base, a mixing tank, rotating gears, a feeding hopper, a discharging hopper, a power supply device, a support and a support column, wherein the support is provided with two supports which are vertically and fixedly connected to the upper end surface of the base, one ends of the two supports far away from the base are horizontally and fixedly connected with fixed rods, the fixed rods are fixedly connected to the rotating gears, the side wall of the mixing tank is clamped on the inner walls of the two rotating gears, the support columns are fixedly connected to one side, close to the discharge port of the mixing tank, of the upper end surface of the base, the ends of the support columns far away from the base are fixedly connected to the discharging hopper, the discharging hopper is positioned under the discharge port of the mixing tank, the discharging direction of the discharging hopper inclines towards the upper end surface of the base, one end of the feeding hopper close to the feeding port of the mixing tank is erected on the upper end surface of, a telescopic frame structure for dumping the feeding hopper is abutted to the lower part of the feeding hopper, and a power supply device is placed on the upper end face of the base;

the water tank has still been placed to one side that the base upper end is close to into the hopper, install on the water tank and pass through power supply unit driven water feed pump, the water feed pump delivery port is connected and is communicated and has the inlet tube, go into hopper pan feeding mouth edge fixedly connected with spray pipe, the hole for water spraying water inlet with the inlet tube is connected and is communicated, the spray pipe is close to a plurality of hole for water spraying have been seted up to hopper pan feeding mouth one side.

Through the technical scheme, when the feeding hopper is filled with the filler, water in the water tank is lifted to the water inlet pipe through the water feeding pump to flow into the water spraying pipe and spray out through the water spraying holes in the water spraying pipe, the sprayed water wets the raw materials in the feeding hopper, so that dust is not prone to generating during feeding, the sprayed water is accumulated in the feeding hopper, then the water accumulated in the feeding hopper is flushed into the stirring barrel along with the raw materials, and the feeding hopper is flushed and cleaned by matching with the water spraying pipe during the spraying process.

The utility model discloses further set up to: the edge of each water spraying hole arranged on the water spraying pipe is hinged with a plurality of shielding covers, the water spraying pipe is made of iron, and the shielding covers are made of magnets matched with the water spraying pipe made of iron.

Through above-mentioned technical scheme, the spray pipe is when spraying water, and water pressure needs to reach and makes the absorption open when having the magnetic to block the lid naturally at the hole for water spraying edge, and water just can spout, and the water spray water pressure of every hole for water spraying is balanced, strengthens the water spray effect, blocks when the water pressure is less or does not have water simultaneously and cover and can be automatic closed, the water economy resource.

The utility model discloses further set up to: the feeding hopper comprises a material placing bin and a material conveying track, a first bin opening is formed in one end face, far away from the bottom surface, of the material placing bin, a second bin opening is formed in one end face, close to the material inlet of the stirring barrel, of the material conveying track, a third bin opening is formed in one end face, far away from the ground, of the material conveying track, one end, close to the material inlet of the stirring barrel, of the material placing bin is fixedly connected and communicated with one end, far away from the material inlet of the stirring barrel, of the material conveying track, the material conveying track is obliquely arranged with the ground when not used, the material placing bin is located below the material conveying track when not used, and a baffle oblique to the second bin opening is fixedly connected to one side, close to the second bin opening, of the side wall of the material;

the telescopic frame structure comprises a first support and a second support, one end of the first support, which is far away from the ground, abuts against the middle position of the lower end face of the material conveying track, one end of the second support is fixedly connected to the upper end face of the base, and one end of the second support, which is far away from the base, abuts against one side, close to the feeding hopper, of the bottom end face of the feeding hopper;

the first support comprises a first telescopic device and a first sliding chute matched with the first telescopic device for use, a first screw rod used for manually rotating and controlling the first telescopic device to slide in the first sliding chute is arranged on the first telescopic device, a plurality of first screw holes for the first screw rod to penetrate into are uniformly formed in the inner wall of the first sliding chute, the first support is abutted against the ground when in use, and a first knob is arranged at one end of the first screw rod, which is far away from the first sliding chute;

the second support includes first pillar, second pillar, first pillar fixed connection is close to into hopper one side in the base upper end, the one end that the base was kept away from to first pillar is rotated and is connected in the one end that the base is close to the second pillar, the one end fixed connection that the base was kept away from to the second pillar is in fortune material track lower surface, still include the second telescoping device on the second pillar and with the second spout that the cooperation of second telescoping device used, be equipped with on the second telescoping device and be used for artifical rotation control the gliding second screw rod of second telescoping device in the second spout, a plurality of confessions have evenly been seted up in its inner wall to the second spout the second screw in the second screw rod is worn to establish, the second screw rod is kept away from the one end of second spout is equipped with the second knob.

Through the technical scheme, go into the hopper and divide into and put feed bin and fortune material track two parts, also slow down the speed when the raw materials gets into the agitator when extension pan feeding time, the speed is too fast when avoiding directly shaking the pan feeding and produces the raise dust, set up first support promotion fortune material track on first commentaries on classics screw rod through artifical rotation and be close to and put feed bin one side and put the feed bin and rise, set up the second knob control second support pulling fortune material track discharge gate one side decline on the screw rod through artifical rotation simultaneously, make into the whole slope of hopper when the pan feeding, drive the raw materials through rivers and slowly slide into the agitator along the fortune material track of slope, produce the dust and damage raw materials when avoiding using the vibration pan feeding.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the utility model arranges the water spray pipe above the feeding hopper, so that the raw material can be wetted in the feeding hopper by spraying water through the water spray pipe when feeding the feeding hopper, thereby avoiding the generation of dust during feeding the dried raw material to harm human health;

2. the utility model discloses a divide into the hopper and transport the material track and put the feed bin two parts, install the expansion bracket structure in the hopper below simultaneously, can prolong hopper pan feeding time, move the raw materials through spray pipe spun hosepipe and slowly get into the agitator along the whole of the hopper that inclines, reduce the damage of raw materials and the production of flying dust, the washing away of cooperation water when the pan feeding simultaneously, in time clear up the hopper, reduce the waste of raw materials.

Drawings

FIG. 1 is a schematic view of the construction of the concrete mixing apparatus.

Fig. 2 is a front view of the concrete mixing apparatus.

FIG. 3 is a schematic view of the connection structure of the feeding hopper with the water spraying pipe and the water inlet pipe in the concrete mixing device.

Fig. 4 is an exploded view of the structure of fig. 3.

Fig. 5 is a partially enlarged structural view of a portion a in fig. 4.

FIG. 6 is a schematic view of the connection structure of the base and the feeding hopper of the concrete mixing device.

Fig. 7 is an exploded view of the structure of fig. 6.

FIG. 8 is a schematic view of the structure of the concrete mixing apparatus when feeding.

In the figure, 1, a base; 2. a stirring barrel; 3. a rotating gear; 4. a water tank; 41. a water pump; 5. feeding into a hopper; 51. placing a bin; 512. a first bin opening; 52. a material conveying track; 521. a second bin opening; 522. a third bin opening; 6. a water spray pipe; 61. a water spray hole; 62. a blocking cover; 7. a water inlet pipe; 8. a power supply device; 10. a telescopic frame structure; 11. a first bracket; 111. a first telescoping device; 112. a first chute; 113. a first screw; 114. a first knob; 12. a second bracket; 121. a first support; 122. a second support; 123. a second telescoping device; 13. a support pillar; 14. a pillar; 15. a water supply pipe; 16. a discharge hopper; 17. a baffle plate; 18. a second chute; 19. a second screw; 191. a second knob; 20. a wear layer; 21. fixing the rod; 22. a first screw hole; 23. and a second screw hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a concrete mixing device, including base 1, two pillars 14 of fixed connection in the base 1 up end, fixed connection set up two rotating gear 3 on two pillars 14 dead lever 21, lateral wall joint in the agitator 2 of rotating gear 3 inner wall and erect in base 1 up end be close to the income hopper 5 of agitator 2 pan feeding end one side, place in base 1 up end be close to power supply unit 8 and the water tank 4 of agitator 2 one side.

The feeding hopper 5 comprises a square material placing bin 51 made of iron sheet and a material conveying track 52 matched with the square material placing bin 51, the bottom end face of the feeding hopper 5 is abutted with a telescopic frame knot for obliquely placing the material placing bin 51 into the feeding hopper 5, 10 is provided, one end of the feeding hopper 5, which is far away from the ground, is provided with a first bin opening 512 (refer to figure 4), one end of the material conveying track 52, which is close to the feeding hopper 5 of the stirring barrel 2, is provided with a second bin opening 521 (refer to figure 4), one end of the material conveying track 52, which is far away from the ground, is provided with a third bin opening 522 (refer to figure 4), one side, which is close to the second bin opening 521 (refer to figure 4), of the side wall of the material conveying track 52 is welded with a rectangular baffle 17 obliquely arranged towards the second bin opening 521 (refer to figure 4), the rectangular baffles 17 are not connected with each other, the material conveying track 52 is divided into a cone shape by the rectangular baffle 17, the side wall, when not in use, the material conveying rail 52 is obliquely placed on the bottom surface towards the material inlet side of the stirring barrel 2, a wear-resistant layer is bonded on the inner wall of the material placing bin 51 through an adhesive, and the iron sheet on the bottom plate of the material conveying rail 52 is polished and slipped.

Referring to fig. 3 and 4, for the related structure of the connection of the water spraying pipes 6 on the feeding hopper 5 of the concrete mixing device disclosed by the present invention, the edge of the first port 512 (refer to fig. 4) of the feeding hopper 51 of the feeding hopper 5 is welded with the U-shaped water spraying pipe 6 made of iron, one end of the U-shaped water spraying pipe 6 near the first port 512 (refer to fig. 4) of the feeding hopper 51 is provided with a plurality of circular water spraying holes 61 (refer to fig. 5) protruding toward the direction of the first port 512 of the feeding hopper, each circular water spraying hole 61 (refer to fig. 5) is hinged with a circular magnet thin sheet blocking cover 62 (refer to fig. 5), the diameter of the blocking cover 62 (refer to fig. 5) is larger than that of the water spraying hole 61 (refer to fig. 5), the blocking cover 62 (refer to fig. 5) can be adsorbed on the outer ring of the water spraying hole 61 (refer to fig. 5), one end of the water spraying pipe 6 far away from the first port 512, the other end of the water inlet pipe 7 is communicated with the water outlet of a water feeding pump 41 which is fixedly connected with the water tank 4.

Before the concrete stirring device stirs, raw materials are put into the material placing bin 51 of the feeding hopper 5 through the first bin opening 512 (refer to fig. 4), the power supply device 8 drives the water feeding pump 41 to pump water into the water inlet pipe 7 from the water tank 4 and then flow into the water spraying pipe 6, when the water quantity and the water pressure are gradually increased, the water flow washes away the magnetic shielding cover 62 adsorbed on the water spraying holes 61 (refer to fig. 5) and is sprayed into the material placing bin 51 of the feeding hopper 5, and the raw materials are moistened and gradually accumulated in the material placing bin 51.

Referring to fig. 6 and 7, in order to provide a connection structure between a feeding hopper 5 and a base 1 of a concrete mixing apparatus according to the present invention, a first support 11 having an H-shape is welded on a bottom end surface of a feeding rail 52 of the feeding hopper 5 near a middle position of the feeding rail 52, a bottom end of the first support 11 abuts against the ground when not in use, a lower portion of the first support 11 is a first sliding groove 112, an upper portion of the first support 11 is a first expansion device 111 capable of sliding in the first sliding groove 112, the first expansion device 111 is connected to a first screw 13 for controlling the first expansion device 111 to move along an inner wall of the first sliding groove 112 under manual control, the first sliding groove 112 is uniformly provided with twelve first screw holes 22 (refer to fig. 8) for the first screw 113 to penetrate through, one end of the first screw 113 away from the first sliding groove 112 is provided with a first knob 114, and when the first screw 113 is rotated clockwise by the first screw 114, one end of the first screw 113 is gradually far away from the first screw hole 22 (refer to fig. 8) formed in the inner wall of the first sliding chute 112, the first telescopic device 111 is manually pulled to freely move up and down along the inner wall of the first sliding chute 112, after the proper height is adjusted, the first screw 113 is rotated anticlockwise through the first knob 114, one end of the first screw 113 is gradually and rotatably connected and inserted into the first screw hole 22 (refer to fig. 8) formed in the inner wall of the first sliding chute 112, the first screw 113 blocks the first telescopic device 111 to move, the process enables the first support 11 to be telescopic up and down and fixed at the designated height, and the hopper 5 is pushed to be integrally inclined (refer to fig. 8).

A second bracket 12 matched with the first bracket 11 for use is fixedly connected between the position, close to the feeding port of the stirring barrel 2, on the bottom end face of the material conveying rail 52 and the upper end of the base 1, a bottom plate is arranged at the connecting part of the second bracket 12, the bottom end face of the material feeding hopper 5 and the upper end face of the base 1, the connecting part of the bottom plate, the bottom end face of the material feeding hopper 5 and the upper end face of the base 1 is reinforced by rivets, the second bracket 12 comprises a first support column 121 vertically connected to the upper end of the base 1 and close to one side of the material feeding hopper 5 and a second support column 122 vertically connected with the lower surface of the material conveying rail 52 and close to one side of the stirring barrel 2, the first support column 121 is connected with the second support column 122 through bolts, the second support column 122 is similar to the first support column 121 in structure, a second chute 18 is arranged at one end of the second support column 122 close to the first support column 121, the second expansion device 123 is rotatably connected with a second screw rod 19 for controlling the second expansion device 123 to move along the inner wall of the second sliding chute 18 under manual control, the inner wall of the second sliding chute 18 is uniformly provided with five second screw holes 23 (refer to fig. 8) for the second screw rod 19 to penetrate through, one end of the second screw rod 19, which is far away from the second sliding chute 18, is provided with a second knob 191, when the second screw rod 19 is rotated clockwise by the second knob 191, one end of the second screw rod 19 is gradually far away from the second screw hole 23 (refer to fig. 8) arranged on the inner wall of the second sliding chute 18, the second expansion device 123 is manually pulled to freely move up and down along the inner wall of the second sliding chute 18, after the proper height is adjusted, the second screw rod 19 is rotated counterclockwise by the second knob 191, one end of the second screw rod 19 is gradually inserted into the second screw hole 23 (refer to fig. 8) arranged on the inner wall of the second sliding chute 18, the second screw, this process causes the second support 12 to be retractable up and down, pulling the hopper 5 out of the hopper to tilt (see fig. 8).

After putting into the material placing bin 51 with the raw materials, control the second telescoping device 123 that sets up on second support 12 through artifical rotatory second screw rod 19 and stimulate material transporting track 52 and be close to the one end downstream of agitator 2, the first knob 114 of artifical rotatory simultaneously, first support 11 promotes material transporting track 52 middle part and connects and keep away from the material placing bin 51 upward movement of agitator 2 one end in material transporting track 52 through first telescoping device 111, make into the whole front and back of hopper 5 and take place the slope (refer to fig. 8), the raw materials slides into agitator 2 along smooth material transporting track 52.

Referring to fig. 1 and 2, one side of the upper end surface of the base 1 close to the outlet is further fixedly connected with a conical discharge hopper 16 through a support column 13, a rotating shaft is arranged in the middle of the support column 13, the support column 13 is divided into two sections capable of rotating up and down, the upper section and the lower section of the support column 13 are respectively and vertically fixed on the bottom surface of the discharge hopper 16 and the upper end surface of the upper end of the base 1, one end of the discharge hopper 16 close to the mixing tank 2 is slightly higher than one end of the discharge hopper 16 far away from the mixing tank 2, and the support column.

One end of the upper end surface of the base 1, which is close to the side wall of the discharge hopper 16, is hung with a water supply pipe 15 with a water outlet higher than the discharge hopper 16, the water supply pipe 15 is made of rubber materials and can rotate up and down along with the discharge hopper 16, and a water supply inlet is fixedly connected to a water supply pump 41 on the water tank 4.

After the stirring of the stirring barrel 2 is completed, the processed raw materials slide downwards through the feeding hopper 5 to be stacked, and after the stirring is completed, the water is fed to the water feeding pipe 15 through the water feeding pump 41 to wash and clean the discharging hopper 16 in time.

The implementation principle of the embodiment is as follows: when the concrete mixer is used, raw materials are put into the material placing bin 51 of the material feeding hopper 5, the power supply device 8 drives the water feeding pump 41 to feed water into the water spraying pipe 6 through the water inlet pipe 7, when the water volume and the water pressure increase, the water flow rushes off the blocking cover 62 (refer to fig. 5) and is sprayed into the material placing bin 51 through the water spraying hole 61 (refer to fig. 5), the raw materials are moistened and gradually accumulated in the material placing bin 51, then the telescopic frame structure 10 abutting against the bottom end face of the material feeding hopper 5 is controlled to stretch by manually rotating the first knob 114 and the second knob 191 to drive the material feeding hopper 5 to move up and down, the whole material feeding hopper 5 is lifted up and down, the whole material feeding hopper 5 is inclined towards the material inlet of the stirring barrel 2 (refer to fig. 8), the raw materials in the material placing bin 51 slide into the stirring barrel 2 along the smooth material conveying track 52 along with the water flow inclination, the water spraying pipe 6 continuously sprays, the stirring barrel 2 is driven to stir, the processed materials slide out for use through the discharging hopper 16, the sliding speed and the stacking position of the processed products can be changed by the rotating support column 13, and the power supply device 8 after use drives the water supply pump 41 to supply water to the water supply pipe 15 and then enables the water to flow into the discharging hopper to be washed.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A concrete mixing device comprises a base (1), a mixing tank (2), a rotating gear (3), a feeding hopper (5), a discharging hopper (16), a power supply device (8), a support column (14) and a support column (13), wherein the support column (14) is provided with two and two support columns (14) which are vertically and fixedly connected to the upper end face of the base (1), one ends of the two support columns (14) far away from the base (1) are horizontally and fixedly connected with a fixing rod (21), the fixing rod (21) is fixedly connected to the rotating gear (3), the side wall of the mixing tank (2) is clamped on the inner walls of the two rotating gears (3), the support column (13) is fixedly connected to the upper end face of the base (1) and is close to one side of a discharge hole of the mixing tank (2), one end of the support column (13) far away from the base (1) is fixedly connected to the discharging hopper (16), and the discharging hopper (16) is positioned under the discharge, the discharging direction of the discharging hopper (16) is inclined towards the upper end face of the base (1), one end, close to the feeding port of the stirring barrel (2), of the feeding hopper (5) is connected to the upper end face of the base (1) in a bridging mode, the discharging port of the feeding hopper (5) is flush with the feeding port of the stirring barrel (2) in height, a telescopic frame structure (10) used for dumping the feeding hopper (5) is abutted to the lower portion of the feeding hopper (5), and a power supply device (8) is placed on the upper end face of the base (1);

the method is characterized in that: base (1) upper end is close to one side of going into hopper (5) and has still placed water tank (4), install on water tank (4) and pass through power supply unit (8) driven water feed pump (41), water feed pump (41) delivery port be connected with inlet tube (7) and with inlet tube (7) intercommunication, go into hopper (5) pan feeding mouth edge fixedly connected with spray pipe (6), spray pipe (6) are close to a plurality of hole for water sprayings (61) have been seted up into hopper (5) pan feeding mouth one side, hole for water spraying (61) water inlet connect in inlet tube (7) and with inlet tube (7) intercommunication.

2. A concrete mixing apparatus according to claim 1, wherein: one side of the water spraying pipe (6) close to the water spraying hole (61) is hinged with a blocking cover (62) used for covering the water spraying hole (61), the water spraying pipe (6) is made of iron, the blocking cover (62) is made of magnets, and the diameter of the blocking cover (62) is larger than that of the water spraying hole (61).

3. A concrete mixing apparatus according to claim 1, wherein: go into hopper (5) including putting feed bin (51) and fortune material track (52), put feed bin (51) and keep away from the terminal surface of bottom surface and seted up first storehouse mouth (512), fortune material track (52) are close to a terminal surface of agitator (2) pan feeding mouth has seted up second storehouse mouth (521), fortune material track (52) keep away from the terminal surface on ground and seted up third storehouse mouth (522), put feed bin (51) and be close to the one end fixed connection of agitator (2) pan feeding mouth in fortune material track (52) keep away from the one end of agitator (2) pan feeding mouth and with fortune material track (52) intercommunication, fortune material track (52) when not using to agitator (2) pan feeding mouth lopsidedness sets up, it is located when not using to put feed bin (51) fortune material track (52) below.

4. A concrete mixing apparatus according to claim 1, wherein: the telescopic frame structure (10) comprises a first support (11) and a second support (12), one end, far away from the ground, of the first support (11) is abutted to the middle position of the lower end face of the material conveying track (52), one end of the second support (12) is fixedly connected to the upper end face of the base (1), one end, far away from the base (1), of the second support (12) is abutted to the end face, close to the bottom end face of the material feeding hopper (5), of the material feeding hopper (5).

5. A concrete mixing apparatus according to claim 4, wherein: the first support (11) comprises a first telescopic device (111) and a first sliding groove (112), the first sliding groove (112) is located at one end, close to the ground, of the inner side face of the first support (11), the first telescopic device (111) is connected to the first sliding groove (112) in a clamping mode, a first screw (113) used for controlling the first telescopic device (111) to slide up and down along the inner wall of the first sliding groove (112) through manual rotation is further arranged on the first telescopic device (111), a plurality of first screw holes (22) for the first screw (113) to penetrate into are uniformly formed in the inner wall of the first sliding groove (112), and the first support (11) is vertically abutted to the ground when in use;

the second support (12) comprises a first support column (121) and a second support column (122), the first support column (121) is fixedly connected to one side, close to the material feeding hopper (5), of the upper end of the base (1), one end, far away from the base (1), of the first support column (121) is fixedly connected to one end, close to the base (1), of the second support column (122), one end, far away from the base (1), of the second support column (122) is fixedly connected to the lower surface of the material conveying track (52), the second support column (122) comprises a second expansion device (123) and a second sliding chute (18), the second sliding chute (18) is arranged at one end, close to the material conveying track (52), of the side surface of the second support column (122), the second expansion device (123) is clamped on the second sliding chute (18), a second screw (19) for manually controlling the second expansion device (123) to slide up and down along the inner wall of the second sliding chute (18) is further arranged on the second expansion device (123), the inner wall of the second chute (18) is uniformly provided with a plurality of second screw holes (23) for the second screw rods (19) to penetrate into.

6. A concrete mixing apparatus according to claim 5, wherein: a first knob (114) is arranged at one end, far away from the first sliding groove (112), of the first screw rod (113), and a second knob (191) is arranged at one end, far away from the second sliding groove (18), of the second screw rod (19).

7. A concrete mixing apparatus according to claim 3, wherein: the inner wall of the material placing bin (51) is paved with a wear-resistant layer (20), and the wear-resistant layer (20) is bonded on the inner wall of the material placing bin (51) through an adhesive.

8. A concrete mixing apparatus according to claim 3, wherein: two side walls of the material conveying track (52) are respectively welded with a baffle (17) at one end close to the second bin opening (521), the two baffles (17) are obliquely arranged towards the second bin opening (521), and the two baffles (17) are not connected with each other.

9. A concrete mixing apparatus according to claim 1, wherein: the water supply pump (41) is also connected with a water supply pipe (15), and the water supply pipe (15) extends to the upper part of the discharge hopper (16) along the edge of the base (1).