CN220428816U

CN220428816U - Concrete mixing conveyor

Info

Publication number: CN220428816U
Application number: CN202321745480.5U
Authority: CN
Inventors: 李�浩; 李昌荣; 王小红
Original assignee: Mianyang Jihongshun Building Materials Co ltd
Current assignee: Mianyang Jihongshun Building Materials Co ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2024-02-02
Anticipated expiration: 2033-07-05

Abstract

The utility model discloses a concrete stirring and conveying device, which comprises a base, wherein a feeding component and a stirring component are arranged on the base, materials are provided for the feeding component and the stirring component, a conveying component is arranged below the stirring component, the stirring component comprises a stirring barrel communicated with the feeding component, the top of the stirring barrel is rotationally connected with a rotating pipe, the rotating pipe penetrates through the stirring barrel to the inner cavity of the stirring barrel, the lower part of the rotating pipe is provided with a connecting rod, one end of the connecting rod, which is far away from the rotating pipe, is provided with a wall scraping rod, the wall scraping rod is attached to the inner wall of the stirring barrel, one side, which is far away from the inner wall of the stirring barrel, of the wall scraping rod is provided with a plurality of groups of second stirring rods, the inner wall of the rotating pipe is rotationally connected with a second rotating shaft, a plurality of groups of first stirring rods are arranged on the second rotating shaft, and the bottom of the stirring barrel is provided with a first discharging pipe. According to the utility model, the rotating pipe is added on the second rotating shaft, so that the first stirring rod and the second stirring rod are mutually staggered to stir the concrete, and the stirring efficiency is improved.

Description

Concrete mixing conveyor

Technical Field

The utility model relates to the technical field of building equipment, in particular to a concrete stirring and conveying device.

Background

Concrete is simply referred to as "concrete": refers to the collective term for engineering composite materials in which aggregate is consolidated into a whole by a cementitious material. The term concrete generally refers to cement as a cementing material, and sand and stone as aggregate; the cement concrete, also called ordinary concrete, obtained by mixing the cement concrete with water (which can contain additives and admixtures) according to a certain proportion is widely applied to civil engineering. Along with the continuous development of economy, the development of the building industry in China is rapid, the building quantity of infrastructure is increased or not, and the concrete is taken as one of the building materials with the largest modern building engineering consumption, so that the demand of the concrete is rapid.

When current concrete mixing equipment is in use, most drive single pivot through the motor and stir the concrete, stirring efficiency is lower, and the speed is comparatively slow, if for the rotational speed that increases the motor of stirring speed and simplex, then probably lead to the motor to damage, can't satisfy the in-service use demand, moreover at the in-process of stirring because the viscosity of concrete is great often glues on the inner wall of agitator, can cause the concrete stirring inhomogeneous when the concrete glues on the agitator inner wall to the concrete that glues on the inner wall hardly clears away from the inner wall of agitator.

Accordingly, the applicant has proposed a concrete mixing and conveying apparatus to solve the above-mentioned problems.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a concrete stirring and conveying device.

The utility model adopts the following technical scheme to realize the aim:

the concrete stirring and conveying device comprises a base, wherein a feeding assembly and a stirring assembly are arranged on the base, the feeding assembly is communicated with the stirring assembly and provides materials for the stirring assembly, and a conveying assembly is arranged below the stirring assembly;

the stirring assembly comprises a stirring barrel communicated with the feeding assembly, a rotating pipe is rotationally connected to the top of the stirring barrel, the rotating pipe penetrates through the stirring barrel to the inner cavity of the stirring barrel, a connecting rod is installed at the lower portion of the rotating pipe, a wall scraping rod is installed at one end of the connecting rod, which is far away from the rotating pipe, the wall scraping rod is attached to the inner wall of the stirring barrel, a plurality of groups of second stirring rods are installed on one side, which is far away from the inner wall of the stirring barrel, of the wall scraping rod, a second rotating shaft is rotationally connected to the inner wall of the rotating pipe, a plurality of groups of first stirring rods are installed on the second rotating shaft, and a first discharging pipe is arranged at the bottom of the stirring barrel.

Further, the material loading subassembly is including all establishing the storage vat on the base and being fore-and-aft material loading section of thick bamboo, the storage vat is through first communicating pipe intercommunication with material loading section of thick bamboo lower part, vertically be equipped with rotatable first pivot in the material loading section of thick bamboo, be equipped with first helical blade in the first pivot, first pivot top extends material loading section of thick bamboo top and is connected with first motor, material loading section of thick bamboo upper portion is equipped with the second communicating pipe with the agitator intercommunication.

Further, the conveying assembly comprises a conveying pipe, a feeding hole located below the first discharging pipe is formed in one end of the top of the conveying pipe, a second motor is arranged on one side of the conveying pipe, a second motor drives a third rotating shaft arranged in the conveying pipe, a third spiral blade is arranged on the third rotating shaft, and a second discharging pipe is arranged at one end, far away from the stirring barrel, of the bottom of the conveying pipe.

Further, a first bevel gear is arranged at the part, extending out of the top of the feeding barrel, of the first rotating shaft, a second bevel gear is meshed with the first bevel gear, a fifth bevel gear is arranged at the upper part of the rotating tube, a fourth bevel gear is arranged at the part, extending out of the top of the stirring barrel, of the second rotating shaft, the fourth bevel gear and the fifth bevel gear are meshed with the third bevel gear, and the second bevel gear is connected with the third bevel gear through a fourth rotating shaft.

Further, the lower part of the stirring barrel is of a funnel-shaped structure, and one end of the second rotating shaft, which is positioned at the lower part of the stirring barrel, is provided with a second helical blade.

Further, the scraping rod comprises a vertical part and an inclined part, the vertical part is attached to the inner wall of the upper part of the stirring barrel, the inclined part is attached to the inner wall of the lower part of the stirring barrel, and a plurality of groups of second stirring rods are located on the vertical part.

Further, the base is provided with a fixing seat below the stirring barrel, the fixing seat is hinged with the bottom of the conveying pipe, one side of the fixing seat is provided with a telescopic rod hinged with the base, and the top of the telescopic rod is hinged with the bottom of the conveying pipe.

Further, a support column is installed at one end on the base, and a support bracket is arranged at the top of the support column.

Further, first bevel gear and second bevel gear outside is equipped with first guard box, first guard box is installed at last feed cylinder top, first motor is installed at first guard box top, third bevel gear, fourth bevel gear and fifth bevel gear outside is equipped with the second guard box, the second guard box is installed at the agitator top.

Further, one end of the top of the stirring barrel is communicated with a water inlet pipe.

Compared with the prior art, the utility model provides a concrete stirring and conveying device, which has the following beneficial effects:

1. according to the utility model, the rotating pipe is added on the second rotating shaft, the second rotating shaft drives the first stirring rod to rotate, and simultaneously, the rotating pipe drives the wall scraping rod and the second stirring rod to rotate, so that the first stirring rod and the second stirring rod are mutually staggered to stir materials and water, the stirring efficiency is improved, the wall scraping rod is used for effectively scraping concrete on the inner wall of the stirring barrel, the concrete is prevented from adhering to the inner wall of the stirring barrel, the stirring uniformity of the concrete is improved, the use requirement is met, and the stirring device is more practical.

2. According to the concrete pouring device, materials are conveyed to the stirring barrel through the feeding assembly, the first stirring rod and the second stirring rod in the stirring barrel stir concrete, the stirred concrete is discharged from the first discharging pipe and enters the conveying assembly, and the concrete is conveyed to a position to be poured through the conveying assembly, so that the conveying efficiency of the concrete is improved.

Drawings

FIG. 1 is a schematic view of the internal structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 4 is an enlarged schematic view of the structure at B in fig. 1.

The mark in the figure is 1, a base; 2. a feeding assembly; 21. a storage barrel; 22. a feeding cylinder; 23. a first communication pipe; 24. a first motor; 25. a first rotating shaft; 26. a first helical blade; 27. a second communicating pipe; 3. a stirring assembly; 31. a stirring barrel; 32. a second rotating shaft; 33. a rotary tube; 34. a connecting rod; 35. a wall scraping rod; 36. a first stirring rod; 37. a second stirring rod; 38. a second helical blade; 39. a first discharge pipe; 40. a discharge valve; 4. a transport assembly; 41. a delivery tube; 42. a feed inlet; 43. a second motor; 44. a third rotating shaft; 45. a third helical blade; 46. a second discharge pipe; 5. a first bevel gear; 6. a second bevel gear; 7. a third bevel gear; 8. a fourth bevel gear; 9. a fifth bevel gear; 10. a fixing seat; 11. a telescopic rod; 12. a support column; 13. a support bracket; 14. a water inlet pipe; 15. support legs; 16. a roller; 17. a first protection box; 18. a second protection box; 19. a towing hook; 20. and a fourth rotating shaft.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

It should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," second, "" third, "" fourth, "and fifth" are used for descriptive purposes only and are not to be construed as indicating or implying positive importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The embodiment of the utility model provides a concrete stirring and conveying device, referring to fig. 1 and 2, which comprises a base 1, wherein a feeding component 2 and a stirring component 3 are arranged on the base 1, the feeding component 2 is communicated with the stirring component 3 and provides materials for the stirring component, and a conveying component 4 is arranged below the stirring component 3 to convey concrete to a position to be poured, so that the conveying efficiency of the concrete is improved;

the stirring assembly 3 comprises a stirring barrel 31 communicated with the feeding assembly 2, a rotating pipe 33 is rotatably connected to the top of the stirring barrel 31, the rotating pipe 33 penetrates through the stirring barrel 31 to the inner cavity of the stirring barrel 31, a connecting rod 34 is arranged at the lower part of the rotating pipe 33, a wall scraping rod 35 is arranged at one end of the connecting rod 34, which is far away from the rotating pipe 33, a first discharging pipe 39 is arranged at the bottom of the stirring barrel 31 in a staggered manner, concrete is effectively scraped through the wall scraping rod 35, the concrete is prevented from adhering to the inner wall of the stirring barrel 31, the uniformity of stirring the concrete is improved, the wall scraping rod 35 is attached to the inner wall of the stirring barrel 31, a plurality of groups of second stirring rods 37 are arranged at one side, which is far away from the inner wall of the stirring barrel 31, of the rotating pipe 33, a second rotating shaft 32 is rotatably connected to the inner wall of the rotating pipe 33, a plurality of groups of first stirring rods 36 are arranged on the second rotating shaft 32, the first stirring rods 36 and the second stirring rods 37 are arranged in a staggered manner, and a discharging valve 40 is arranged on the first discharging pipe 39.

Referring to fig. 1, in this embodiment, the lower portion of the stirring barrel 31 is of a funnel-shaped structure, and the second rotating shaft 32 is provided with a second spiral blade 38 at one end of the lower portion of the stirring barrel 31, so that it is effectively ensured that the concrete in the stirring barrel 31 does not block the first discharging pipe 39, and the concrete at the bottom can be conveyed back to the first stirring rod 36 to be circularly mixed, so that stirring is more sufficient.

The upper part of the stirring barrel 31 is cylindrical; support legs 15 are arranged on two sides of the lower portion of the stirring barrel 31 and are used for supporting the stirring barrel 31, the support legs 15 are arranged on the base 1, and specifically, the number of the support legs 15 is 4 and distributed around the lower portion of the stirring barrel 31.

Referring to fig. 1, in this embodiment, the scraping rod 35 includes a vertical portion and an inclined portion, the vertical portion is attached to an inner wall of an upper portion of the stirring vessel 31, the inclined portion is attached to an inner wall of a lower portion of the stirring vessel 31, and a plurality of groups of the second stirring rods 37 are located on the vertical portion.

Referring to fig. 1 and 2, in this embodiment, one end of the top of the stirring barrel 31 is connected to a water inlet pipe 14, the water inlet pipe 14 is connected to a water outlet of the water pump, and the water inlet pipe 14 is convenient for conveying water into the stirring barrel 31 to mix with concrete.

Specifically, the gyro wheel 16 is installed to base 1 bottom both sides, and the one end that is close to feeding subassembly 2 on the base 1 is equipped with towing pintle 19, conveniently uses the car to carry or remove the position to this device through driving gyro wheel 16 and towing pintle 19.

Referring to fig. 1, in this embodiment, the feeding assembly 2 includes a storage tank 21 and a feeding cylinder 22 that are both disposed on the base 1, the storage tank 21 is communicated with the lower portion of the feeding cylinder 22 through a first communication pipe 23, a rotatable first rotating shaft 25 is longitudinally disposed in the feeding cylinder 22, a first helical blade 26 is disposed on the first rotating shaft 25, the top end of the first rotating shaft 25 extends out of the top of the feeding cylinder 22 and is connected with a first motor 24, a second communication pipe 27 that is communicated with the stirring cylinder 31 is disposed on the upper portion of the feeding cylinder 22, and the second communication pipe 27 is communicated with the upper portion of the stirring cylinder 31.

Specifically, a slope is arranged at the inner bottom of the storage barrel 21, so that materials can enter the upper charging barrel 22 completely through the first communication pipe 23.

To adding the material in the storage vat 21, the material gets into feed cylinder 22 through first communicating pipe 23, starts first motor 24, and first motor 24 drives first pivot 25 and rotates, and first pivot 25 drives first helical blade 26 and rotates, and first helical blade 26 drives the material and carries to second communicating pipe 27, and the material gets into in the agitator 31 through second communicating pipe 27.

Referring to fig. 3 and 4, in this embodiment, a portion of the first rotating shaft 25 extending out of the top of the upper charging barrel 22 is provided with a first bevel gear 5, the first bevel gear 5 is meshed with a second bevel gear 6, an upper portion of the rotating tube 33 is provided with a fifth bevel gear 9, a portion of the second rotating shaft 32 extending out of the top of the stirring barrel 31 is provided with a fourth bevel gear 8, the fourth bevel gear 8 and the fifth bevel gear 9 are meshed with a third bevel gear 7, and the second bevel gear 6 and the third bevel gear 7 are connected through a fourth rotating shaft 20.

Specifically, the fourth bevel gear 8 is located above the fifth bevel gear 9, and the third bevel gear 7 is located between the fourth bevel gear 8 and the fifth bevel gear 9.

When the first rotating shaft 25 rotates, the first rotating shaft 25 drives the first bevel gear 5 to rotate, the first bevel gear 5 drives the second bevel gear 6 to rotate, the second bevel gear 6 drives the fourth rotating shaft 20 to rotate, the fourth rotating shaft 20 drives the third bevel gear 7 to rotate, the third bevel gear 7 drives the fourth bevel gear 8 and the fifth bevel gear 9 to rotate, the fourth bevel gear 8 and the fifth bevel gear 9 rotate in opposite directions, the fourth bevel gear 8 drives the second rotating shaft 32 and the first stirring rod 36 to rotate, the fifth bevel gear 9 drives the rotating tube 33, the connecting rod 34, the scraping rod 35 and the second stirring rod 37 to rotate, the first stirring rod 36 and the second stirring rod 37 are mutually staggered to stir materials and water, the materials and the water are uniformly mixed, the first rotating shaft 25, the second rotating shaft 32 and the rotating tube 33 are driven by the first motor 24 to simultaneously rotate, continuous feeding stirring work is completed, energy consumption is saved, stirring efficiency is improved to a great extent, concrete on the inner wall of the stirring barrel 31 is effectively scraped by the scraping rod 35, and uniformity of stirring is improved.

Referring to fig. 3 and 4, in the present embodiment, a first protection box 17 is provided outside the first bevel gear 5 and the second bevel gear 6 to protect the first bevel gear 5 and the second bevel gear 6 from damage caused by impurities to the first bevel gear 5 and the second bevel gear 6, the first protection box 17 is installed at the top of the upper charging barrel 22, the first motor 24 is installed at the top of the first protection box 17, a second protection box 18 is provided outside the third bevel gear 7, the fourth bevel gear 8 and the fifth bevel gear 9 to protect the third bevel gear 7, the fourth bevel gear 8 and the fifth bevel gear 9 from damage caused by impurities, and the second protection box 18 is installed at the top of the stirring barrel 31.

The fourth rotating shaft 20 is rotatably connected with the first protection box 17 and the second protection box 18, and the first protection box 17 and the second protection box 18 can provide supporting force for the fourth rotating shaft 20, so that stability of the fourth rotating shaft 20 during rotation is improved.

Referring to fig. 1, in this embodiment, the conveying assembly 4 includes a conveying pipe 41, a feed inlet 42 located below the first discharge pipe 39 is provided at one end of the top of the conveying pipe 41, a second motor 43 is provided at one side of the conveying pipe 41, the second motor 43 drives a third rotating shaft 44 provided in the conveying pipe 41, a third helical blade 45 is mounted on the third rotating shaft 44, and a second discharge pipe 46 is provided at one end of the bottom of the conveying pipe 41 away from the stirring barrel 31.

After the concrete is stirred, the concrete is discharged through the first discharging pipe 39, enters the conveying pipe 41 from the feeding hole 42, the second motor 43 is started, the second motor 43 drives the third rotating shaft 44 to rotate, the third rotating shaft 44 drives the third helical blade 45 to rotate, the third helical blade 45 conveys the concrete entering from the feeding hole 42 to the vicinity of the second discharging pipe 46, and the concrete is discharged from the second discharging pipe 46 to the position where the concrete is to be poured.

Referring to fig. 1 and 2, in this embodiment, a fixed seat 10 is disposed below the stirring barrel 31 on the base 1, the fixed seat 10 is hinged to the bottom of the conveying pipe 41, a telescopic rod 11 hinged to the base 1 is disposed on one side of the fixed seat 10, and the top of the telescopic rod 11 is hinged to the bottom of the conveying pipe 41.

The telescopic rod 11 is an electric telescopic rod, a hydraulic telescopic rod or a pneumatic telescopic rod.

According to the height of the concrete to be poured, the conveying pipe 41 is adjusted to be proper in height and inclination through the expansion and contraction of the telescopic rod 11, so that the concrete produced by the stirring barrel 31 is conveniently conveyed to the position to be poured, and the conveying efficiency of the concrete is improved.

Referring to fig. 1 and 2, in this embodiment, a support column 12 is installed at one end of the base 1, and a support bracket 13 is disposed at the top of the support column 12, so as to support the conveying pipe 41, thereby facilitating the limiting and supporting of the conveying pipe 41.

Working principle: when in use, the device is conveniently hauled or moved by an automobile through the driving roller 16 and the towing hook 19, when the device moves to a proper position, the device is connected with an external power supply, the conveying pipe 41 is adjusted to a proper height and inclination according to the height of the concrete to be poured through the expansion and contraction of the telescopic rod 11, the material is added into the storage barrel 21, enters the feeding barrel 22 through the first connecting pipe 23, the first motor 24 is started, the first motor 24 drives the first rotating shaft 25 to rotate, the first rotating shaft 25 drives the first helical blade 26 to rotate, the first helical blade 26 drives the material to be conveyed to the second connecting pipe 27, the material enters the stirring barrel 31 through the second connecting pipe 27, the water is conveyed into the stirring barrel 31 through the water inlet pipe 14, when the first rotating shaft 25 rotates, the first rotating shaft 25 drives the first bevel gear 5 to rotate, the first bevel gear 5 drives the second bevel gear 6 to rotate, the second bevel gear 6 drives the fourth rotating shaft 20 to rotate, the fourth rotating shaft 20 drives the third bevel gear 7 to rotate, the third bevel gear 7 drives the fourth bevel gear 8 and the fifth bevel gear 9 to rotate, the fourth bevel gear 8 drives the second rotating shaft 32 and the first stirring rod 36 to rotate, the fifth bevel gear 9 drives the rotating pipe 33, the connecting rod 34, the wall scraping rod 35 and the second stirring rod 37 to rotate, the first stirring rod 36 and the second stirring rod 37 are mutually staggered to stir materials and water, the materials and the water are uniformly mixed, concrete on the inner wall of the stirring barrel 31 is effectively scraped through the wall scraping rod 35, the concrete is prevented from adhering to the inner wall of the stirring barrel 31, and the uniformity of stirring of the concrete is improved;

What is not described in detail in this specification is prior art known to those skilled in the art.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.

Claims

1. The concrete stirring and conveying device comprises a base (1), and is characterized in that a feeding assembly (2) and a stirring assembly (3) are arranged on the base (1), the feeding assembly (2) is communicated with the stirring assembly (3) and supplies materials for the stirring assembly, and a conveying assembly (4) is arranged below the stirring assembly (3);

stirring subassembly (3) are including agitator (31) with material loading subassembly (2) intercommunication, agitator (31) top rotates and is connected with swinging arms (33), swinging arms (33) run through the inner chamber of agitator (31) to agitator (31), connecting rod (34) are installed to swinging arms (33) lower part, scraper bar (35) are installed to one end that swinging arms (33) were kept away from to connecting rod (34), scraper bar (35) are laminated with the inner wall of agitator (31), scraper bar (35) are kept away from one side of agitator (31) inner wall and are installed multiunit second puddler (37), swinging arms (33) inner wall rotation is connected with second pivot (32), install multiunit first puddler (36) on second pivot (32), agitator (31) bottom is equipped with first discharging pipe (39).

2. The concrete mixing and conveying device according to claim 1, wherein the feeding assembly (2) comprises a storage vat (21) and a longitudinal feeding barrel (22) which are both arranged on the base (1), the storage vat (21) is communicated with the lower part of the feeding barrel (22) through a first communicating pipe (23), a rotatable first rotating shaft (25) is longitudinally arranged in the feeding barrel (22), a first helical blade (26) is arranged on the first rotating shaft (25), the top end of the first rotating shaft (25) extends out of the top of the feeding barrel (22) to be connected with a first motor (24), and a second communicating pipe (27) communicated with the stirring barrel (31) is arranged on the upper part of the feeding barrel (22).

3. The concrete mixing and conveying device according to claim 1, wherein the conveying assembly (4) comprises a conveying pipe (41), a feed inlet (42) located below the first discharge pipe (39) is formed in one end of the top of the conveying pipe (41), a second motor (43) is arranged on one side of the conveying pipe (41), a third rotating shaft (44) arranged in the conveying pipe (41) is driven by the second motor (43), a third helical blade (45) is mounted on the third rotating shaft (44), and a second discharge pipe (46) is arranged at one end, away from the stirring barrel (31), of the bottom of the conveying pipe (41).

4. The concrete mixing and conveying device according to claim 2, wherein a first bevel gear (5) is installed at a portion of the first rotating shaft (25) extending out of the top of the upper charging barrel (22), the first bevel gear (5) is meshed with a second bevel gear (6), a fifth bevel gear (9) is installed at the upper portion of the rotating pipe (33), a fourth bevel gear (8) is installed at a portion of the second rotating shaft (32) extending out of the top of the mixing barrel (31), the fourth bevel gear (8) and the fifth bevel gear (9) are meshed with a third bevel gear (7), and the second bevel gear (6) is connected with the third bevel gear (7) through a fourth rotating shaft (20).

5. The concrete mixing and conveying apparatus according to claim 1, wherein the lower portion of the mixing drum (31) has a funnel-shaped structure, and the second rotating shaft (32) is provided with a second helical blade (38) at one end of the lower portion of the mixing drum (31).

6. The concrete mixing and conveying apparatus according to claim 5, wherein the wall scraping rod (35) includes a vertical portion that is fitted to an inner wall of an upper portion of the mixing drum (31) and an inclined portion that is fitted to an inner wall of a lower portion of the mixing drum (31), and a plurality of sets of the second stirring rods (37) are located on the vertical portion.

7. A concrete mixing and conveying device according to claim 3, wherein a fixed seat (10) is arranged below the mixing drum (31) on the base (1), the fixed seat (10) is hinged with the bottom of the conveying pipe (41), a telescopic rod (11) hinged with the base (1) is arranged on one side of the fixed seat (10), and the top of the telescopic rod (11) is hinged with the bottom of the conveying pipe (41).

8. The concrete mixing and conveying device according to claim 7, wherein a support column (12) is mounted at one end on the base (1), and a support bracket (13) is arranged at the top of the support column (12).

9. The concrete mixing and conveying device according to claim 4, wherein a first protection box (17) is arranged outside the first bevel gear (5) and the second bevel gear (6), the first protection box (17) is installed at the top of the upper charging barrel (22), the first motor (24) is installed at the top of the first protection box (17), a second protection box (18) is arranged outside the third bevel gear (7), the fourth bevel gear (8) and the fifth bevel gear (9), and the second protection box (18) is installed at the top of the mixing barrel (31).

10. The concrete mixing and conveying device according to claim 1, wherein one end of the top of the mixing drum (31) is communicated with a water inlet pipe (14).