Concrete pouring device for building construction

Abstract

The present application relates to a technical field related to concrete pouring, and discloses a concrete pouring device for building construction. In order to solve the problem of high labor intensity caused by poor construction environment, a rotatable feeding auger is built into a mixing box. When the feeding auger rotates in the opposite direction, the feeding auger is used to flip the concrete upward to achieve concrete mixing; the feeding auger is rotated forward to feed the concrete into a telescopic drive pipe, and a cut-off valve is used to put the telescopic drive pipe in a relatively closed state. As the amount of concrete inside the telescopic drive pipe increases, the telescopic drive pipe is pushed to extend, forcing the telescopic drive pipe to push a spray seat to move to a desired pouring position. When the cut-off valve opens the telescopic drive pipe, the concrete inside the telescopic drive pipe is directly sprayed from the spray seat to the desired position without manual handling, thereby greatly reducing labor intensity and ultimately achieving the effects of on-site mixing and transportation in the concrete pipe.

Description

Technical Field

[0001] The present application relates to the technical field related to concrete pouring, and in particular to a concrete pouring device for building construction. Background Art

[0002] Concrete pouring is a crucial part of civil engineering. Its core lies in accurately pouring the carefully mixed and balanced concrete materials into the mold, and achieving its plasticization and compaction through means such as vibration, and finally forming a solid building component. In modern construction practice, the main supply of concrete depends on concrete mixer trucks (commonly known as tank trucks) to efficiently transport the concrete prepared in advance at the mixing station to the construction site, and then use advanced concrete pumps and their pump pipe systems to transport the concrete to various construction sites over long distances and at high pressure, greatly improving construction efficiency and flexibility.

[0003] However, although pumping technology is quite mature, it still faces many challenges in the complex and ever-changing construction environment. In particular, in some remote areas that are difficult to access or have limited space, such as the top of high-rise buildings, deep in basements, or areas with complex structures, traditional pumping pipes may be difficult to reach directly, making concrete pouring in these areas difficult. In response to this situation, construction sites often have to adopt a more flexible but more primitive solution - on-site mixing of concrete.

[0004] Although on-site mixing can solve the transportation problem, the problems that come with it are low efficiency and high labor intensity. Workers need to manually mix cement, sand, water and other materials, and after mixing, they use wheelbarrows or manual transportation to transport the heavy concrete to the designated location. This process is not only time-consuming and labor-intensive, but also easily affected by factors such as weather and workers' skill level, resulting in unstable concrete quality, which in turn affects the safety and durability of the entire building structure. Summary of the invention

[0005] The present application proposes a concrete pouring device for building construction, which has the advantages of on-site mixing and transportation in concrete pipes, and is used to solve the problem of high labor intensity caused by poor construction environment mentioned in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a concrete pouring device for building construction, comprising: a mixing box, which is fixed at a desired position by a supporting base, and a mixing chamber is provided inside the mixing box; a mixing motor is fixed to the bottom of the mixing box, and a feeding auger is fixedly installed on the output shaft of the mixing motor; a three-way frame is fixed to the side of the supporting base, the middle part of the three-way frame is connected to the bottom of the mixing chamber through a discharge pipe, a transmission drum is movably installed at one end of the three-way frame, and a telescopic driving pipe is fixed at the other end; a rope collecting gear is movably installed on the side of the transmission drum, and a A rope drum is located inside the transmission drum, and a limited-motion pull rope is wound around the outside of the rope drum; a gear ring is fixed at the end of the tee frame and meshes with the outer teeth of the rope-collecting gear; a driven bevel gear is installed at the end of the transmission drum, and an active bevel gear meshing with the outer teeth of the driven bevel gear is fixedly installed on the output shaft of the stirring motor; a transport cart is connected to one end of the telescopic drive tube, and a spray seat is movably installed on the top of the transport cart; a support frame is movably installed on the inner side of the end of the telescopic drive tube, and the limited-motion pull rope is connected to the support frame; a cut-off valve for realizing the connection and disconnection between the telescopic drive tube and the spray seat is arranged on the inner side of the transport cart.

[0007] Furthermore, a stirring rod located in the stirring chamber is fixedly installed on the top of the feeding auger.

[0008] Furthermore, a limited force internal tooth is fixedly installed on the inner top of the rope collecting gear, and a limited force push rod is movably installed on the rope drum rotating shaft, and a limited force spring is connected between the limited force push rod and the rotating shaft.

[0009] Furthermore, a one-way limiting tooth is fixedly connected to the inner side of the driven bevel gear, the end face of the one-way limiting tooth is in the shape of a right-angled triangle, and a spring push rod is fixedly connected to the outer side of the transmission drum.

[0010] Further, the first cut-off valve is a butterfly valve.

[0011] Furthermore, the second type of cut-off valve includes: a reset piston, which is mounted on the inner side of the support frame, and a rope locking rod is coaxially fixed in the middle of the reset piston; a material control valve core, which is installed at the end of the rope locking rod; a transmission pull rod, which is fixed on the side of the rope locking rod, and a limit handle is fixedly installed on one end of the transmission pull rod; a limit frame, which is fixed on the side of the transport vehicle and is used to limit the movement of the limit handle.

[0012] Furthermore, the cross-section of the material control valve core is an isosceles triangle.

[0013] Furthermore, the side of the limit frame is an inclined surface, and a positioning discharge portion is provided on the top of the inclined surface, a blocking portion is provided on the middle of the inclined surface, and a return discharge portion is provided on the bottom of the inclined surface.

[0014] Furthermore, a reversing wheel is fixedly installed at the end of the support frame, and the end of the rope locking rod points to the central axis of the reversing wheel. A rope locking seat is movably installed on the side of the rope drum shaft, and the limiting pull rope is fixed on the rope locking seat after being reversed by the reversing wheel.

[0015] The present invention has the following beneficial effects:

[0016] The present application provides a concrete pouring device for building construction, in which a rotatable feeding auger structure is integrated inside a mixing box. When the device is working, the feeding auger performs a dual task: when it is necessary to optimize the concrete mixing effect, the feeding auger rotates in the opposite direction, and uses its spiral blades to flip the concrete in the mixing box upward, thereby effectively promoting uniform mixing of the concrete and ensuring sufficient reaction and consistency between materials.

[0017] When the mixed concrete is ready to be delivered to the construction site, the feeding auger switches to the forward rotation mode and pushes the concrete smoothly into the telescopic drive tube connected to it. In the initial stage, the telescopic drive tube is kept relatively closed by the built-in cut-off valve to ensure that the accumulation of concrete in the tube will not leak prematurely. As the concrete is continuously fed in, the pressure in the tube gradually increases, pushing the telescopic drive tube to gradually extend along the preset route. In this process, the telescopic drive tube also plays the role of power transmission, pushing the spray seat connected to its end to move to the designated pouring position.

[0018] Once the predetermined position is reached and it is confirmed that the pouring is ready, the cut-off valve opens to release the concrete accumulated inside the telescopic drive tube. As the feeding auger continues to feed concrete, the concrete is sprayed out in a continuous and controllable manner through the spraying seat, directly covering the area to be poured. This process not only completely gets rid of the dependence on manual handling in traditional construction, significantly reduces labor intensity, but also greatly improves construction efficiency and safety, ensuring the accuracy and quality of concrete pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0020] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0021] Figure 1 It is a schematic diagram of the overall external three-dimensional structure;

[0022] Figure 2 It is a schematic diagram of the overall front cross-sectional structure;

[0023] Figure 3 for Figure 2 The enlarged structural diagram at E in the middle;

[0024] Figure 4 for Figure 2 The enlarged structural diagram at F in the middle;

[0025] Figure 5This is a schematic diagram of the internal three-dimensional structure of the transport vehicle;

[0026] Figure 6 It is a schematic diagram of the internal three-dimensional structure of the mixing box;

[0027] Figure 7 This is a schematic diagram of the installation position of the force-limiting ejector rod;

[0028] Figure 8 It is a schematic diagram of the internal three-dimensional structure of the transmission drum.

[0029] In the figure: 1, support base; 2, mixing box; 200, mixing chamber; 3, mixing motor; 4, active bevel gear; 5, driven bevel gear; 500, one-way limit gear; 6, control computer; 7, transmission drum; 701, spring push rod; 8, rope collection gear; 800, force-limiting internal gear; 801, force-limiting push rod; 802, force-limiting spring; 9, gear ring; 10, telescopic drive pipe; 11, transport vehicle; 12, spray seat; 13. Limiting frame; 130. Positioning discharge part; 131. Sealing part; 132. Return discharge part; 14. Limiting handle; 15. Feeding auger; 150. Stirring rod; 16. Three-way frame; 160. Discharge pipe; 17. Rope drum; 170. Rope lock seat; 18. Limiting pull rope; 19. Reversing wheel; 20. Support frame; 21. Material control valve core; 22. Rope lock top rod; 220. Reset piston; 23. Transmission pull rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Embodiment 1

[0031] See also Figure 1 and Figure 2 It can be seen that the mixing box 2 can be fixed in a relatively remote area through the support base 1. A mixing chamber 200 with an upward opening is provided inside the mixing box 2. The concrete raw materials to be mixed are placed in the mixing chamber 200. A mixing motor 3 is fixedly installed at the bottom of the mixing box 2, and a feeding auger 15 located in the mixing chamber 200 is fixedly installed on the output shaft of the mixing motor 3. When the mixing motor 3 drives the feeding auger 15 to rotate in the opposite direction, the feeding auger 15 will flip the concrete upward, thereby achieving concrete mixing. In actual application, in order to enhance the mixing intensity, combined with Figure 2It can be clearly seen that a stirring rod 150 located in the stirring chamber 200 is fixedly installed on the top of the feeding auger 15, and the stirring rod 150 is used to stir the concrete in the stirring chamber 200, thereby increasing the mixing strength of the concrete in the stirring chamber 200.

[0032] The side of the support base 1 is provided with a three-way frame 16 fixedly installed via a connecting plate. The middle of the three-way frame 16 is connected to the bottom of the mixing chamber 200 via a discharge pipe 160. When the mixing motor 3 drives the feeding auger 15 to rotate forward, the feeding auger 15 will input the concrete in the mixing chamber 200 into the three-way frame 16. Figure 2 , Figure 3 and Figure 6 It can be seen that the end of the three-way frame 16 is movably mounted with a transmission drum 7, and a rope collection gear 8 is movably mounted on the side of the transmission drum 7. The central axis of the rope collection gear 8 faces the central axis of the transmission drum 7. A rope drum 17 located inside the transmission drum 7 is movably mounted on the rope collection gear 8. Specifically, the rope drum 17 shaft is movably mounted on the rope collection gear 8. A limited pull rope 18 is wound around the outer side of the rope drum 17. The limited pull rope 18 can be reeled in by rotating the rope drum 17. A gear ring 9 meshing with the outer teeth of the rope collection gear 8 is fixedly mounted at the end of the three-way frame 16. When the transmission drum 7 rotates on the end of the three-way frame 16, the meshing between the rope collection gear 8 and the gear ring 9 can force the rope collection gear 8 to rotate. A driven bevel gear 5 is installed at the end of the transmission drum 7. Correspondingly, an active bevel gear 4 is fixedly installed on the output shaft of the stirring motor 3 and is meshed with the external teeth of the driven bevel gear 5. When the stirring motor 3 drives the feeding auger 15 to rotate, it will synchronously drive the active bevel gear 4 to rotate, forcing the driven bevel gear 5 to drive the transmission drum 7 to rotate synchronously.

[0033] A telescopic drive tube 10 away from the transmission drum 7 is fixedly installed at the end of the three-way frame 16, and one end of the telescopic drive tube 10 is connected to the transport vehicle 11. Since rollers are movably installed at the four corners of the bottom of the transport vehicle 11, it is convenient for the transport vehicle 11 to move on the ground. Figure 2 As can be seen, a support frame 20 is movably mounted on the inner side of the end of the telescopic drive tube 10, and the limit pull rope 18 is connected to the support frame 20. When the first embodiment is used, refer to Figure 1 , Figure 2 and Figure 5As can be seen in the figure, a spraying seat 12 is movably installed on the top of the transport vehicle 11, and the spraying seat 12 can spray the concrete transported in the telescopic drive tube 10 outward. Since the spraying seat 12 can rotate freely on the top of the transport vehicle 11, the spraying direction of the concrete can be changed. In order to facilitate the control of concrete spraying, a cut-off valve for realizing the connection and disconnection between the telescopic drive tube 10 and the spraying seat 12 is arranged on the inner side of the transport vehicle 11. When the cut-off valve separates the spraying seat 12 from the telescopic drive tube 10, the inside of the telescopic drive tube 10 is in a relatively sealed state. The cut-off valve is preferably a butterfly valve.

[0034] Combination Figure 2 , Figure 3 and Figure 7 It can be clearly seen that a force-limiting internal tooth 800 is fixedly installed on the top of the inner side of the rope collecting gear 8, and a force-limiting top rod 801 is movably installed on the rotating shaft of the rope drum 17. A force-limiting top rod 801 and the rotating shaft are connected with a force-limiting spring 802. The force-limiting top rod 801 is always pushed against the force-limiting internal tooth 800 by the elastic force of the force-limiting spring 802. When the rotational resistance between the rope collecting gear 8 and the rope drum 17 is small, the rope collecting gear 8 will drive the force-limiting top rod 801 to rotate the rope drum 17; when the rotational resistance between the rope drum 17 and the rope collecting gear 8 is large, the force-limiting top rod 801 will slide along the force-limiting internal tooth 800, and transmission cannot be performed between the two. Similarly, in combination with Figure 8 It can be seen that a one-way limit tooth 500 is fixedly connected to the inner side of the driven bevel gear 5, and the end face shape of the one-way limit tooth 500 is a right triangle. A spring top rod 701 is fixedly connected to the outer side of the transmission drum 7. The spring in the spring top rod 701 will make the spring top rod 701 always push to the inner side of the driven bevel gear 5. The spring top rod 701 and the one-way limit tooth 500 can enable one-way transmission between the transmission drum 7 and the driven bevel gear 5.

[0035] In specific application, concrete raw materials are placed in the mixing chamber 200, and the control computer 6 fixed on the side of the support base 1 is used to control the rotation of the mixing motor 3, so that the mixing motor 3 rotates in the reverse direction, and the mixing motor 3 drives the feeding auger 15 and the mixing rod 150 to rotate synchronously in the mixing chamber 200, and the raw materials are stirred in the mixing chamber 200. Since the feeding auger 15 transports the concrete raw materials upward, during this process, the concrete raw materials will not be input into the discharge pipe 160. At the same time, when the mixing motor 3 rotates in the reverse direction, the active bevel gear 4 will also rotate in the reverse direction synchronously, and the active bevel gear 4 and the driven bevel gear 5 will mesh and rotate. During this process, due to the one-way transmission between the driven bevel gear 5 and the transmission drum 7, the driven bevel gear 5 will not cause the transmission drum 7 to rotate.

[0036] When the concrete in the mixing chamber 200 is mixed, the control computer 6 is used to make the mixing motor 3 drive the feeding auger 15 to rotate forward, and the feeding auger 15 will transport the concrete to the three-way frame 16 through the discharge pipe 160, and the concrete in the three-way frame 16 will be input into the telescopic drive pipe 10. During this process, the shut-off valve in the transport vehicle 11 is in a closed state. As the amount of concrete in the telescopic drive pipe 10 increases, the telescopic drive pipe 10 will extend and push the transport vehicle 11 to move to the left. At the same time, when the stirring motor 3 drives the driven bevel gear 5 to rotate forwardly through the active bevel gear 4, the driven bevel gear 5 drives the transmission drum 7 to make the rope collection gear 8 rotate around the gear ring 9. During the rotation, the rope collection gear 8 will drive the rope drum 17 to reel in the limit pull rope 18. Combined with the above, the transport vehicle 11 is pushed to the left by the telescopic driving tube 10, and the limit pull rope 18 is synchronously stretched through the support frame 20, causing the limit pull rope 18 to be in an unwinding state, which causes the torsion between the rope drum 17 and the rope collection gear 8 to be greater than the elastic force of the force limiting spring 802. The force limiting spring 802 will move along the force limiting internal tooth 800, and the rope collection gear 8 will not drive the rope drum 17 to rotate at this time.

[0037] When the transport vehicle 11 moves to the desired position, the cut-off valve is slowly opened to allow the concrete in the telescopic drive tube 10 to spray out from the spray seat 12. The spray seat 12 is rotated to control the direction in which the concrete is sprayed out. As the cut-off valve is slowly opened, the pressure in the telescopic drive tube 10 is gradually reduced, reducing the intensity of the forward movement of the transport vehicle 11, thereby slowing down the movement speed of the transport vehicle 11. When the transport vehicle 11 needs to retreat, it is only necessary to fully open the cut-off valve to release the concrete in the telescopic drive tube 10 from the spray seat 12. The pressure in the telescopic drive tube 10 is not enough to maintain the movement of the transport vehicle 11 to the left. As the rope-collecting gear 8 continues to rotate around the gear ring 9, the force-limiting push rod 801 is pressed against the force-limiting inner tooth 800 by the elastic force of the force-limiting spring 802. The force-limiting inner tooth 800 drives the rope drum 17 to rotate, so that the rope drum 17 reels the limit rope 18, thereby pulling the transport vehicle 11 back toward the support base 1. Embodiment 2

[0038] Further improvement on the basis of the first embodiment, as another form of the cut-off valve, please refer to Figure 2 and Figure 5It can be clearly seen that a reset piston 220 is mounted on the inner side of the support frame 20, and a locking rope top rod 22 located inside the transport vehicle 11 is coaxially fixed to the middle part of the reset piston 220, and the material control valve core 21 is installed at the end of the locking rope top rod 22. The cross-sectional shape of the material control valve core 21 is an isosceles triangle, and the bottom surface of the material control valve core 21 can be used to separate the telescopic drive tube 10 and the limit frame 13. In addition, when the material control valve core 21 moves left and right along the inner side of the transport vehicle 11, the inclined surface is used to push the concrete to prevent the material control valve core 21 from being blocked by the concrete and unable to move inside the transport vehicle 11. Since the end face of the reset piston 220 is located in the telescopic drive tube 10, when the concrete pressure in the telescopic drive tube 10 increases, the reset piston 220 will be pushed to the left, so that the locking rope top rod 22 pushes the material control valve core 21 away from the support frame 20, and the telescopic drive tube 10 and the spray seat 12 are easily connected.

[0039] In order to facilitate the on-off control of concrete supply, a transmission rod 23 is fixedly connected to the side of the lock rope top rod 22, one end of the transmission rod 23 extends to the outside of the transport vehicle 11, and a limited motion handle 14 is fixedly installed on the transmission rod 23 extending to the outside of the transport vehicle 11. A limited motion frame 13 is fixedly installed on the side of the transport vehicle 11 to limit the movement of the limited motion handle 14. Figure 5 As shown, the side of the limit frame 13 is an inclined surface, and a positioning discharge portion 130 is provided on the top of the inclined surface, a blocking portion 131 is provided on the middle of the inclined surface, and a return discharge portion 132 is provided on the bottom of the inclined surface. When the limit handle 14 is placed in the blocking portion 131, the material control valve core 21 separates the telescopic drive tube 10 and the spray seat 12; similarly, when the limit handle 14 is placed in the positioning discharge portion 130 or the return discharge portion 132, the material control valve core 21 will move left / right relatively along the transport vehicle 11, so that the telescopic drive tube 10 and the spray seat 12 are connected.

[0040] In specific implementation, the mixing motor 3 drives the feeding auger 15 to rotate in the opposite direction to mix the concrete. This method is consistent with the content described in the above embodiment 1.

[0041] When the mixing motor 3 rotates forward, the feeding auger 15 transports the mixed concrete in the mixing chamber 200 to the telescopic drive tube 10, and the amount of concrete in the telescopic drive tube 10 increases. At the same time, the concrete in the telescopic drive tube 10 will push the reset piston 220 to move to the left, thereby causing the locking rope top rod 22 to push the material control valve core 21 to have a tendency to open. At this time, if the transport vehicle 11 needs to be moved to the desired position, the limit handle 14 needs to be pulled to the blocking portion 131 to limit the movement of the material control valve core 21. At this time, the transport vehicle 11 moves to the left. When the desired movement position is reached, the limit handle 14 moves along the inclined surface of the limit frame 13, forcing the transmission pull rod 23 to pull the material control valve core 21 so that the telescopic drive tube 10 and the spray seat 12 are gradually connected, and the movement speed of the transport vehicle 11 is controlled according to the size of the connection, and the concrete output through the telescopic drive tube 10 is sprayed outward from the spray seat 12. When it is necessary to retract, the limit handle 14 is pulled to the return discharge part 132, so that the communication channel between the telescopic drive tube 10 and the spray seat 12 is enlarged, forcing the concrete in the telescopic drive tube 10 to be discharged outward quickly. Embodiment 3

[0042] On the basis of the second embodiment, in order to ensure that the transport vehicle 11 can be locked at the desired position during the process of spraying concrete, please refer to Figure 2 , Figure 5 and Figure 6 It can be seen that the end of the support frame 20 is fixedly mounted with a reversing wheel 19, and the end of the rope locking rod 22 points to the central axis of the reversing wheel 19, and the rope locking seat 170 is movably mounted on the side of the rotating shaft of the rope drum 17, and the limit pull rope 18 is fixed on the rope locking seat 170 after being reversed by the reversing wheel 19. In actual application:

[0043] Stirring state: the control computer 6 controls the stirring motor 3 to rotate in the opposite direction, so that the stirring motor 3 drives the feeding auger 15 and the stirring rod 150 to evenly stir the raw materials in the stirring chamber 200. At the same time, when the stirring motor 3 drives the driven bevel gear 5 to rotate through the active bevel gear 4, the transmission drum 7 will not rotate due to the one-way transmission restriction between the driven bevel gear 5 and the transmission drum 7.

[0044] Transportation stage: after the concrete raw materials in the mixing chamber 200 are evenly mixed, the control computer 6 is used to control the mixing motor 3 to rotate forward, so that the feeding auger 15 inputs the evenly mixed concrete into the tee frame 16 through the discharge pipe 160, and the concrete in the tee frame 16 is finally transported to the telescopic drive pipe 10. As the amount of concrete in the telescopic drive pipe 10 increases, the pressure increases relatively, which will push the reset piston 220 to move to the left. At this time, the limit handle 14 is placed at the blocking portion 131, and the material control valve core 21 closes the telescopic drive pipe 10 and There is an interval between the spraying seats 12. As the concrete in the telescopic driving tube 10 increases, the telescopic driving tube 10 pushes the transport vehicle 11 to move to the left. During this process, the driven bevel gear 5 drives the transmission drum 7 to rotate, and the transmission drum 7 drives the rope collection gear 8 to rotate along the ring gear 9. As the transport vehicle 11 moves to the left and pulls the reversing wheel 19, the limiting pull rope 18 on the rope drum 17 is released. At this time, the rotational resistance between the rope collection gear 8 and the rope drum 17 increases, and the force limiting push rod 801 compresses the force limiting spring 802 and rotates along the force limiting internal tooth 800.

[0045] Fixed position spraying stage: When the transport vehicle 11 moves to the desired position, the limit handle 14 is pulled to the positioning discharge part 130, and the material control valve core 21 connects the telescopic drive tube 10 and the spray seat 12, and the concrete is sprayed from the spray seat 12. The spray seat 12 is manually controlled to rotate so that the spray seat 12 sprays to different areas. At the same time, after the limit handle 14 enters the positioning discharge part 130, it will drag the lock rope top rod 22 to the right through the transmission pull rod 23, and then the lock rope top rod 22 will be pushed onto the limit rope 18, and the limit rope 18 is clamped between the lock rope top rod 22 and the reversing wheel 19, forcing the length between the reversing wheel 19 and the lock rope seat 170 to remain unchanged. Combined with the fact that the channel between the spray seat 12 and the telescopic drive tube 10 is not enough to release all the pressure in the telescopic drive tube 10 to the outside, there is always a certain pressure in the telescopic drive tube 10, and the transport vehicle 11 will not be able to move due to the restriction of the limit rope 18.

[0046] In this process, combined Figure 2It can be clearly seen that when the transmission drum 7 rotates, it will drive the rope drum 17 and the rope lock seat 170 to rotate synchronously. The support frame 20 is movably installed at the end of the telescopic driving tube 10 and can also rotate at its end. When the rope drum 17 and the rope lock seat 170 drive the limiting pull rope 18 to actively rotate, the limiting pull rope 18 drives the reversing wheel 19 to follow the rotation. In combination with the limited pull rope 18 connected between the reversing wheel 19 and the rope drum 17 / rope lock seat 170, when the limiting pull rope 18 rotates inside the telescopic driving tube 10, the concrete inside the telescopic driving tube 10 will be stirred to avoid the segregation of concrete during long-distance transportation (concrete segregation refers to the fact that the cohesion between the constituent materials of the concrete mixture is not enough to resist the sinking of coarse aggregate, resulting in the separation of the components of the concrete mixture, resulting in uneven internal composition and structure). The stirring of the limiting pull rope 18 ensures that the concrete is easier to flow during transportation and reduces the transportation resistance.

[0047] Backward stage: After the concrete is sprayed in the vicinity of the transport vehicle 11, it is only necessary to push the limit handle 14 to the return discharge portion 132, and then Figure 2 It can be seen that the material control valve core 21 will move to the left, so that the channel opening between the spray seat 12 and the telescopic drive tube 10 is maximized, and the pressure in the telescopic drive tube 10 is released, which reduces the pressure of the transport vehicle 11 moving to the left. After that, the rope drum 17 is driven by the rope-retracting gear 8 through the force-limiting push rod 801 to rotate, so that the rope drum 17 reels the limiting pull rope 18, and then the reversing wheel 19 pulls the transport vehicle 11 to the right, forcing the transport vehicle 11 to be relatively away from the area where concrete has been sprayed. When the transport vehicle 11 retreats to a certain distance, the limiting handle 14 is pushed to the positioning discharge part 130 again, so that the spray seat 12 sprays concrete to its surrounding area. In this way, the transport vehicle 11 is gradually retracted to the vicinity of the supporting base 1, and the concrete pouring work in this section is completed.

Claims

1. A concrete pouring device for building construction, characterized in that: include: A stirring box (2) is fixed at a desired position by means of a support base (1), and a stirring chamber (200) is provided inside the stirring box (2); The stirring motor (3) is fixed to the bottom of the stirring box (2), and a feeding auger (15) is fixedly mounted on the output shaft of the stirring motor (3); A three-way frame (16) is fixed to the side of the support base (1), the middle of the three-way frame (16) is connected to the bottom of the stirring chamber (200) through a discharge pipe (160), a transmission drum (7) is movably mounted on one end of the three-way frame (16), and a telescopic driving pipe (10) is fixed on the other end; A rope collecting gear (8) is movably mounted on the side of the transmission drum (7), a rope drum (17) located inside the transmission drum (7) is movably mounted on the rope collecting gear (8), and a limited motion pull rope (18) is wound around the outside of the rope drum (17); A gear ring (9) is fixed to the end of the three-way frame (16) and meshes with the outer teeth of the rope collection gear (8); A driven bevel gear (5) is mounted on the end of the transmission drum (7); a driving bevel gear (4) is fixedly mounted on the output shaft of the stirring motor (3) and meshes with the external teeth of the driven bevel gear (5); A transport vehicle (11) is connected to one end of the telescopic driving tube (10), and a spraying seat (12) is movably mounted on the top of the transport vehicle (11); A support frame (20) is movably mounted on the inner side of the end of the telescopic driving tube (10), and a limit pull rope (18) is connected to the support frame (20); A cut-off valve for realizing on-off connection between the telescopic drive pipe (10) and the spray seat (12) is arranged on the inner side of the transport vehicle (11); A limited force internal tooth (800) is fixedly installed on the inner top of the rope collecting gear (8), and a limited force push rod (801) is movably installed on the rotating shaft of the rope drum (17), and a limited force spring (802) is connected between the limited force push rod (801) and the rotating shaft; A one-way limiting tooth (500) is fixedly connected to the inner side of the driven bevel gear (5), and the end face of the one-way limiting tooth (500) is in the shape of a right-angled triangle. A spring push rod (701) is fixedly connected to the outer side of the transmission rotating cylinder (7).

2. The concrete pouring device for building construction according to claim 1, characterized in that: A stirring rod (150) located in the stirring chamber (200) is fixedly mounted on the top of the feeding auger (15).

3. The concrete pouring device for building construction according to claim 1, characterized in that: The first type of shut-off valve is the butterfly valve.

4. The concrete pouring device for building construction according to claim 1, characterized in that: The second type of shut-off valves include: A reset piston (220) is sleeved on the inner side of the support frame (20), and a locking rope top rod (22) is coaxially fixed to the middle of the reset piston (220); The material control valve core (21) is installed at the end of the rope locking rod (22); A transmission rod (23) is fixed to the side of the locking rope top rod (22), and a limited motion handle (14) is fixedly mounted on one end of the transmission rod (23); The limiting frame (13) is fixed to the side of the transport vehicle (11) and is used to limit the movement of the limiting handle (14).

5. The concrete pouring device for building construction according to claim 4, characterized in that: The cross-section of the material control valve core (21) is in the shape of an isosceles triangle.

6. The concrete pouring device for building construction according to claim 4, characterized in that: The side of the limit frame (13) is an inclined surface, and a positioning discharge portion (130) is provided on the top of the inclined surface, a blocking portion (131) is provided on the middle of the inclined surface, and a return discharge portion (132) is provided on the bottom of the inclined surface.

7. The concrete pouring device for building construction according to claim 4, characterized in that: A reversing wheel (19) is fixedly mounted on the end of the support frame (20), and the end of the rope locking top rod (22) points to the central axis of the reversing wheel (19). A rope locking seat (170) is movably mounted on the side of the rotating shaft of the rope drum (17), and the limiting pull rope (18) is fixed on the rope locking seat (170) after being reversed by the reversing wheel (19).

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