Concrete pouring device for industrial and civil buildings

Abstract

The invention is suitable for the technical field of building construction, discloses a concrete pouring device for industrial and civil buildings, and aims to solve the technical problem of stone accumulation when concrete falls in the prior art. In order to achieve the purpose, the concrete pouring device for the industrial and civil buildings comprises a sleeve, an extending assembly and a buffering assembly, and the extending assembly and the buffering assembly are both arranged in the sleeve; by means of the spirally-arranged buffer plate, stones of concrete can fall on the buffer plate, so that a certain buffer effect is achieved on the stones, the falling speed of the buffered stones is reduced, cement paste directly leaks through the leakage holes, the falling speed of the stones is not affected, and the cement paste and the stones can be filled more evenly; and the phenomenon that due to the fact that the falling speed of the stone blocks is high, the number of the stone blocks at the bottom of the pouring mold is large, and the amount of cement paste is small, the bottom cracks due to the small amount of cement paste after pouring is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a concrete pouring device for industrial and civil buildings. Background Art

[0002] Concrete is a material composed of cement, sand and water, with some kind of aggregate added, such as tooth or gravel. Concrete is one of the most important building materials in modern times, especially when reinforced with iron to become reinforced concrete. Concrete pouring refers to the process of pouring concrete into a mold until it is plasticized. In civil engineering, concrete and other materials are poured into a mold to form a predetermined shape. When pouring concrete, the free height of the concrete should not exceed 2m. If it exceeds 3m, corresponding measures should be taken.

[0003] During the concrete pouring process, a pouring truck is used to transport concrete to a high place, and then the concrete is discharged into molds at locations such as the roof through a discharge pipe. Since the stones and cement slurry are subject to different air resistance, the cement slurry usually has a certain viscosity, and the resistance it encounters when gathered together is greater than the resistance of the stones. Therefore, in the process of concrete falling, the stones will fall first. At this time, the stones will generally accumulate at the bottom of the pouring mold, resulting in less cement slurry at the bottom. The places with less cement slurry have insufficient viscosity and are more likely to crack than other places, causing the cement slab or cement wall to be more prone to cracking after pouring. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a concrete pouring device for industrial and civil buildings, which aims to solve the technical problem of stone accumulation when concrete falls in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention proposes a concrete pouring device for industrial and civil buildings, comprising a sleeve, an extension component and a buffer component, wherein the extension component and the buffer component are both arranged in the sleeve; The sleeve comprises an outer cover and an inner discharge channel, a cavity with a lower opening is formed between the outer cover and the inner discharge channel, and the extension assembly is slidably mounted in the cavity; The extension assembly includes an extension tube sliding in the cavity between the outer cover and the inner discharge channel, and a power group is also installed at the bottom of the cavity, a fixing ring is fixed on the outer periphery of the inner discharge channel, and the extension tube is located on the side of the fixing ring away from the power group; The buffer assembly includes a rotating column rotating on the inner wall of the inner discharge channel, and at least two buffer plates are fixed on the inner wall of the rotating column, and the buffer plates are spirally arranged.

[0006] Preferably, at least two slide rod cavities are opened inside the extension tube, and at least two long slide grooves are opened on the outer periphery of the extension tube, wherein the long slide grooves are connected to the corresponding slide rod cavities, and a screw rod is rotatably connected to the fixed ring, and the screw rod extends downward into the inside of the slide rod cavity and is threadedly connected to the slide rod cavity, and a slide rod is also slidably arranged inside the screw rod.

[0007] Preferably, a driven end face gear is fixed on the top of the sliding rod, and teeth are provided on the end face of the driven end face gear away from the sliding rod. The sliding rod is square in design, the length of the sliding rod is greater than the length of the screw rod, and an abutment block is movably connected to the bottom of the sliding rod.

[0008] Preferably, the power group includes a synchronous motor fixed to the outer cover and the bottom of the inner discharge channel cavity, a main gear is fixed on the rotating shaft of the synchronous motor, an end ring gear is also fixed on one end face of the main gear, and teeth are arranged on the end face of the end ring gear away from the synchronous motor.

[0009] Preferably, an annular rack is provided on the outer periphery of the rotating column, the annular rack is meshed with the main gear, end bearings are installed on the upper and lower end faces of the rotating column, and a plurality of leakage holes are also provided on the buffer plate.

[0010] Preferably, a thread groove is provided on the outer periphery of the outer cover, and at least two communication holes are opened on the outer periphery of the outer cover. The communication holes are located at the thread groove, and an adjustment component is installed on the thread groove.

[0011] Preferably, the adjustment assembly includes an adjustment threaded ring threadedly connected to the thread groove, an annular handle ring is fixed on the outer periphery of the adjustment threaded ring, an adjustment rotating ring is movably connected inside the adjustment threaded ring, at least two abutment plates are fixed on the adjustment rotating ring, and the abutment plates pass through the connecting hole to the interior of the extension tube.

[0012] Preferably, at least two screw holes are provided on the top of the inner discharge channel, and fixing bolts are detachably installed in the screw holes.

[0013] Preferably, the extension component also includes a stirring pressure plate sliding on the inner discharge channel, a limit plate is fixed on the outer periphery of the inner discharge channel, a stirring spring is installed between the stirring pressure plate and the limit plate, at least three stirring gear cavities are opened inside the stirring pressure plate, a synchronous ring gear is rotatably connected inside the stirring pressure plate, the end face of the synchronous ring gear close to the inner discharge channel is an inclined surface, and teeth are provided on the inclined surface, a stirring gear is rotatably installed in the stirring gear cavity, the stirring gear is meshed with the outer periphery of the synchronous ring gear, a stirring shaft is fixed at the bottom of the stirring gear, the stirring shaft extends downward through the limit plate, and a stirring plate is fixed at the bottom of the stirring shaft.

[0014] Preferably, at least three bevel gears are rotatably connected in the inner discharge channel, a bevel rack is fixed on the outer periphery of the inner discharge channel, the bevel rack is meshed with the bevel gears, and a handle is also fixed on the outer periphery of the stirring plate.

[0015] Compared with the prior art, the concrete pouring device for industrial and civil buildings provided by the present invention has the following beneficial effects: 1. The spirally arranged buffer plate allows the concrete stones to fall on it, thereby creating a certain buffering effect. The buffer plate is also provided with a number of leak holes, and the falling speed of the buffered stones slows down. The cement slurry leaks directly through the leak holes without affecting its falling speed, so that the cement slurry and stones can be filled more evenly, avoiding the situation where there are more stones and less cement slurry at the bottom of the casting mold due to the fast falling speed of the stones, which leads to cracks at the bottom after casting due to less cement slurry.

[0016] 2. The power group can be used to drive the screw rod to rotate, so that the extension tube can be extended downward, thereby lengthening the overall length of the sleeve, so as to adjust the distance between the concrete outlet and the pouring place, to avoid concrete splashing everywhere and causing waste due to excessive distance, and blockage due to too small distance.

[0017] 3. By adjusting the components, the staff can use the minimum force to adjust the extension of the extension tube, and can end this process at any time, which greatly reduces the work intensity of the staff.

[0018] 4. Through the rotation direction of the buffer plate, the rotating column drives the buffer plate to rotate, so that the stone also has an upward force, and then this stone collides with the newly fallen stone, which can reduce the impact force of the stone and thus reduce the damage to the buffer plate.

[0019] 5. Through the setting of the stirring plate and the stirring shaft, the stirring blade can stir the cement slurry, so that the cement slurry and stones can be evenly distributed, and the cracking of the stone wall or stone slab after pouring due to uneven distribution of cement slurry can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional diagram of the first embodiment of the present invention.

[0022] Figure 2 It is a half-section view of the first embodiment of the present invention.

[0023] Figure 3 The present invention Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 The present invention Figure 2 Enlarged view of point B in the middle.

[0025] Figure 5 It is an internal stereogram of the first embodiment of the present invention.

[0026] Figure 6 It is a partial cross-sectional view of the first embodiment of the present invention.

[0027] Figure 7 It is a front view of the second embodiment of the present invention.

[0028] Figure 8 It is a cross-sectional view of the second embodiment of the present invention.

[0029] Fig. 9 The present invention Figure 8 Enlarged view of point C in the middle.

[0030] in: 10-outer cover; 11-inner discharge channel; 12-fixing bolt; 13-screw hole; 20-extension tube; 21-fixing ring; 22-driven end face gear; 23-slide rod; 24-screw rod; 25-abutment block; 26-long slide groove; 27-slide rod cavity; 30-rotating column; 31-buffer plate; 32-end face bearing; 33-bevel rack; 40-adjusting threaded ring; 41-handle ring; 42-connecting hole; 43-abutment plate; 44-adjusting rotating ring; 50-synchronous motor; 51-main gear; 52-end face ring gear; 60-stirring pressure plate; 61-handle; 62-synchronous ring gear; 63-stirring gear cavity; 64-stirring gear; 65-stirring shaft; 66-limiting plate; 67-bevel gear; 68-stirring spring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0032] In the description of the present invention, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0033] In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invention product is usually placed when in use, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0035] See also Figure 1—6. An embodiment of the present invention provides a concrete pouring device for industrial and civil buildings, including a sleeve, an extension assembly and a buffer assembly. The sleeve includes an outer cover 10 and an inner discharge channel 11. A cavity with a lower opening is formed between the outer cover 10 and the inner discharge channel 11. The extension assembly is slidably installed in the cavity. At least two screw holes 13 are also provided on the top of the inner discharge channel 11. Fixing bolts 12 are detachably installed in the screw holes 13. The entire sleeve can be installed at the discharge port of the concrete pouring vehicle by screwing the fixing bolts 12. The extension component includes an extension tube 20 that slides in the cavity between the outer cover 10 and the inner discharge channel 11, and a power group is also installed at the bottom of the cavity for providing power, which can be driven by fuel such as electricity and gasoline. A fixing ring 21 is fixed on the outer periphery of the inner discharge channel 11, and the extension tube 20 is located on the side of the fixing ring 21 away from the power group. At least two slide rod cavities 27 are opened inside the extension tube 20, and at least two long slide grooves 26 are also opened on the outer periphery of the extension tube 20, wherein the long slide grooves 26 are connected to the corresponding slide rod cavities 27, and a screw rod 24 is rotatably connected to the fixing ring 21, and the screw rod 24 extends downward to the inside of the slide rod cavity 27 and is threadedly connected to the slide rod cavity 27, and a slide rod 23 is also slidably provided in the screw rod 24, and a driven end face gear is fixed on the top of the slide rod 23 Wheel 22, the end face of the driven end face gear 22 away from the slide rod 23 is provided with teeth, the slide rod 23 is square, and the square slide rod 23 allows it to slide only in the screw rod 24, and can also drive the screw rod 24 to rotate while sliding. The length of the slide rod 23 is greater than the length of the screw rod 24, and the bottom of the slide rod 23 is movably connected with an abutment block 25, which abuts against the abutment block 25, so that the slide rod 23 drives the driven end face gear 22 to move upward and mesh with the power group, so that the screw rod 24 can be driven to rotate by the power group, so that the extension tube 20 can be extended downward, thereby lengthening the overall length of the sleeve, so as to adjust the distance between the concrete outlet and the pouring place, avoid concrete splashing everywhere due to excessive distance, causing waste, and blockage due to too small distance; The buffer assembly includes a rotating column 30 rotating on the inner wall of the inner discharge channel 11. The upper and lower end faces of the rotating column 30 are installed with end bearings 32, so that the rotating column 30 can rotate more smoothly. At least two buffer plates 31 are fixed on the inner wall of the rotating column 30. The buffer plates 31 are spirally arranged. The spirally arranged buffer plates 31 allow concrete stones to fall on them, thereby causing a certain buffering effect on them. The buffer plates 31 are also provided with a plurality of leak holes. The falling speed of the stones after buffering is slowed down, and the cement slurry leaks directly through the leak holes without affecting the concrete. The falling speed can make the cement slurry and stones fill more evenly, avoiding the situation that there are more stones and less cement slurry at the bottom of the casting mold due to the fast falling speed of the stones, which leads to cracks at the bottom after casting due to less cement slurry. An annular rack is provided on the outer peripheral side of the rotating column 30, which is meshed with the main gear 51. The rotating column 30 can be rotated by the annular rack, and the rotating buffer plate 31 can buffer both the stones and cement slurry, effectively avoiding the fast falling speed, which may cause damage to the mold.

[0036] A threaded groove is provided on the outer periphery of the outer cover 10, and at least two connecting holes 42 are also opened on the outer periphery of the outer cover 10. The connecting holes 42 are located at the threaded groove, and an adjusting component is installed on the threaded groove. The adjusting component includes an adjusting threaded ring 40 threadedly connected to the threaded groove, and an annular handle ring 41 is fixed on the outer periphery of the adjusting threaded ring 40. An adjusting rotating ring 44 is movably connected inside the adjusting threaded ring 40, and at least two abutment plates 43 are fixed on the adjusting rotating ring 44. The abutment plates 43 pass through the connecting holes 42 to the inside of the extension tube 20. The adjusting component can enable the staff to use the minimum force to adjust the extension of the extension tube 20, and the process can be ended at any time, which greatly reduces the work intensity of the staff.

[0037] The power group includes a synchronous motor 50 fixed to the outer cover 10 and the bottom of the inner discharge channel 11 cavity. A main gear 51 is fixed on the rotating shaft of the synchronous motor 50. An end face ring gear 52 is also fixed to one end face of the main gear 51. The end face ring gear 52 is provided with teeth on the end face away from the synchronous motor 50. The power group provides power to the entire device, and one set of power sources is used to control at least two different systems, which greatly saves the use of power sources, and the staff can control the synchronous motor 50 to rotate forward and reverse.

[0038] During the working process, when in use, the entire device can be installed at the discharge port of a concrete pouring vehicle, both large and small pouring vehicles, by means of the fixing bolts 12, and then the synchronous motor 50 is directly started to rotate in the forward direction, and the synchronous motor 50 rotates through the main gear 51 to drive the rotating column 30 to rotate, and the rotating direction of the rotating column 30 is the same as the spiral direction of the buffer plate 31, so that when the stone falls on the buffer plate 31, the rotating column 30 drives the buffer plate 31 to rotate, so that the stone also has an upward force, and then the stone and the newly dropped stone are moved upward. The falling stones collide with each other, which can reduce the impact force of the stones, thereby reducing the damage to the buffer plate 31. When the staff finds that the bottom of the discharge port of the inner discharge channel 11 is too far away from the mold to be cast, the staff can rotate the handle ring 41, and under the guidance of the thread groove, the adjusting thread ring 40 will be driven to move upward, so that the abutment plate 43 can be driven to move upward by adjusting the rotating ring 44, and part of the abutment plate 43 is in the slide rod cavity 27 and abuts on the abutment block 25, so the abutment plate 43 can drive the slide rod 2 through the abutment block 25. 3 slides upward until the slide bar 23 drives the driven end face gear 22 to mesh with the end face ring gear 52. At this time, the main gear 51 rotates and can also drive the driven end face gear 22 and the slide bar 23 to rotate through the end face ring gear 52. Since the slide bar 23 is set in a square shape, the slide bar 23 can also drive the screw rod 24 to rotate. The rotation of the screw rod 24 can drive the extension tube 20 to move downward through the thread, so that it gradually extends. At this time, the slide bar 23 and the screw rod 24 are stationary relative to the outer cover 10 and the inner discharge channel 11. When the extension tube When the extension tube 20 moves to the appropriate position, the handle ring 41 can be rotated in the reverse direction to make the abutment plate 43 disengage from the abutment block 25 and fall under the action of the slide bar 23's own weight, so that the driven end face gear 22 and the end face ring gear 52 are disengaged, and the driven end face gear 22 can stop extending, and the abutment block 25 can also be adhered to the abutment plate 43. When the abutment plate 43 moves, it can also drive the abutment block 25 to move. If you want to retract the extension tube 20, reverse the synchronous motor 50, and make the end face ring gear 52 mesh with the driven end face gear 22. Embodiment 2

[0039] See also Figure 7—9. On the basis of the first embodiment, the extension component may further include a stirring plate 60 sliding on the inner discharge channel 11, a handle 61 is fixed on the outer periphery of the stirring plate 60, a limit plate 66 is fixed on the outer periphery of the inner discharge channel 11, a stirring spring 68 is installed between the stirring plate 60 and the limit plate 66, at least three stirring gear cavities 63 are opened inside the stirring plate 60, a synchronous ring gear 62 is rotatably connected inside the stirring plate 60, and the end face of the synchronous ring gear 62 on one side close to the inner discharge channel 11 is arranged as an inclined surface, and teeth are arranged on the inclined surface. The arrangement of the inclined teeth can reduce the vertical collision of the gears caused by meshing. Phenomenon, a stirring gear 64 is rotatably installed in the stirring gear cavity 63, and the stirring gear 64 is meshed with the outer peripheral side of the synchronous ring gear 62. A stirring shaft 65 is fixed at the bottom of the stirring gear 64, and the stirring shaft 65 extends downward and passes through the limit plate 66. A stirring piece is fixed at the bottom of the stirring shaft 65, and the stirring piece can stir the cement slurry, so that the cement slurry and stones can be evenly distributed, and the cracking of the stone wall or stone slab after pouring caused by uneven distribution of cement slurry can be avoided. At least three bevel gears 67 are also rotatably connected in the inner discharge channel 11, and a bevel rack 33 is fixed on the outer peripheral side of the inner discharge channel 11, and the bevel rack 33 is meshed with the bevel gear 67.

[0040] During the working process, when in use, the synchronous motor 50 is started to drive the main gear 51 to rotate, thereby driving the rotating column 30 to rotate, and the rotating direction of the rotating column 30 is the same as the spiral direction of the buffer plate 31. The rotation of the rotating column 30 can also drive the helical gear 67 to rotate through the helical rack 33, so that when the stone falls on the buffer plate 31, the rotating column 30 drives the buffer plate 31 to rotate, so that the stone also has an upward force, and then this stone collides with the newly fallen stone, which can reduce the impact force of the stone, thereby reducing the impact on the buffer plate 31. 1. When the concrete in the casting mold needs to be stirred, the staff can directly pull down the stirring platen 60 through the handle 61, so that the stirring platen 60 compresses the stirring spring 68 to drive the stirring shaft 65 to move downward until the synchronous ring gear 62 is meshed with the bevel gear 67. At this time, the rotation of the bevel gear 67 can drive the stirring gear 64 to rotate through the synchronous ring gear 62, thereby rotating the stirring shaft 65. At this time, the concrete can be stirred by the stirring blade on the stirring shaft 65, so that the cement slurry and stones are distributed more evenly.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete pouring device for industrial and civil buildings, comprising a sleeve, an extension assembly and a buffer assembly; characterized in that: The extension assembly and the buffer assembly are both disposed in the sleeve; The sleeve comprises an outer cover (10) and an inner discharge channel (11), a cavity with a lower opening is formed between the outer cover (10) and the inner discharge channel (11), and the extension assembly is slidably mounted in the cavity; The extension assembly comprises an extension tube (20) sliding in a cavity between the outer cover (10) and the inner discharge channel (11), and a power group is also installed at the bottom of the cavity, a fixing ring (21) is fixed on the outer periphery of the inner discharge channel (11), and the extension tube (20) is located on a side of the fixing ring (21) away from the power group; The buffer assembly comprises a rotating column (30) rotating on the inner wall of the inner discharge channel (11), and at least two buffer plates (31) are fixed on the inner wall of the rotating column (30), and the buffer plates (31) are spirally arranged.

2. A concrete pouring device for industrial and civil buildings as claimed in claim 1, characterized in that: At least two slide rod cavities (27) are provided inside the extension tube (20), and at least two long slide grooves (26) are provided on the outer periphery of the extension tube (20), wherein the long slide grooves (26) are communicated with the corresponding slide rod cavities (27). A screw rod (24) is rotatably connected to the fixing ring (21), and the screw rod (24) extends downward into the interior of the slide rod cavity (27) and is threadedly connected to the slide rod cavity (27). A slide rod (23) is also slidably provided inside the screw rod (24).

3. A concrete pouring device for industrial and civil buildings as claimed in claim 2, characterized in that: A driven end face gear (22) is fixed to the top of the slide rod (23); a side end face of the driven end face gear (22) away from the slide rod (23) is provided with teeth; the slide rod (23) is square in shape; the length of the slide rod (23) is greater than the length of the lead screw (24); and an abutment block (25) is movably connected to the bottom of the slide rod (23).

4. A concrete pouring device for industrial and civil buildings as claimed in claim 1, characterized in that: The power group comprises a synchronous motor (50) fixed to the outer cover (10) and the bottom of the cavity of the inner discharge channel (11); a main gear (51) is fixed to the rotating shaft of the synchronous motor (50); an end face ring gear (52) is also fixed to one end face of the main gear (51); and teeth are provided on the end face of the end face ring gear (52) on a side away from the synchronous motor (50).

5. A concrete pouring device for industrial and civil buildings as claimed in claim 4, characterized in that: An annular rack is provided on the outer periphery of the rotating column (30), the annular rack meshing with the main gear (51), end bearings (32) are installed on the upper and lower end faces of the rotating column (30), and a plurality of leakage holes are also provided on the buffer plate (31).

6. A concrete pouring device for industrial and civil buildings as claimed in claim 1, characterized in that: A thread groove is provided on the outer periphery of the outer cover (10), and at least two communication holes (42) are also provided on the outer periphery of the outer cover (10). The communication holes (42) are located at the thread groove, and an adjustment component is installed on the thread groove.

7. A concrete pouring device for industrial and civil buildings as claimed in claim 6, characterized in that: The adjustment assembly comprises an adjustment threaded ring (40) threadedly connected to the thread groove, an annular handle ring (41) is fixed to the outer periphery of the adjustment threaded ring (40), an adjustment rotating ring (44) is movably connected inside the adjustment threaded ring (40), at least two abutment plates (43) are fixed on the adjustment rotating ring (44), and the abutment plates (43) pass through the connecting hole (42) to the inside of the extension tube (20).

8. A concrete pouring device for industrial and civil buildings as claimed in claim 1, characterized in that: At least two screw holes (13) are also provided on the top of the inner discharge channel (11), and fixing bolts (12) are detachably installed in the screw holes (13).

9. A concrete pouring device for industrial and civil buildings as claimed in claim 1, characterized in that: The extension assembly further comprises a stirring plate (60) sliding on the inner discharge channel (11); a limit plate (66) is fixed on the outer periphery of the inner discharge channel (11); a stirring spring (68) is installed between the stirring plate (60) and the limit plate (66); at least three stirring gear cavities (63) are provided inside the stirring plate (60); a synchronous ring gear (62) is rotatably connected inside the stirring plate (60); an end surface of the synchronous ring gear (62) close to the inner discharge channel (11) is provided with an inclined surface, and teeth are provided on the inclined surface; a stirring gear (64) is rotatably installed in the stirring gear cavity (63); the stirring gear (64) is meshed with the outer periphery of the synchronous ring gear (62); a stirring shaft (65) is fixed at the bottom of the stirring gear (64); the stirring shaft (65) extends downward and passes through the limit plate (66); a stirring sheet is fixed at the bottom of the stirring shaft (65).

10. A concrete pouring device for industrial and civil buildings as claimed in claim 9, characterized in that: At least three bevel gears (67) are rotatably connected in the inner discharge channel (11), a bevel rack (33) is fixed on the outer periphery of the inner discharge channel (11), the bevel rack (33) is meshed with the bevel gears (67), and a handle (61) is fixed on the outer periphery of the stirring plate (60).

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