A concrete placing boom with an anti-condensation structure for construction

Abstract

The present invention relates to the field of concrete construction, and discloses a construction concrete placing boom with an anti-condensation structure, comprising a mounting frame, a pipe assembly mounted on the mounting frame, the pipe assembly mainly comprising an elbow 1 and an elbow 2, the internal components of the elbow 1 and the elbow 2 being used to prevent stratification of concrete at the elbow due to different flow rates of the inner and outer layers, which ultimately leads to a large amount of concrete remaining at the elbow, and a watering assembly that can be opened by water pressure control is also provided in the elbow 1. The construction concrete placing boom with an anti-condensation structure provided by the present invention has a pipe assembly, which can firstly reduce the stratification of concrete and continuously carry away aggregates with slurry, and secondly, can use water of different temperatures to insulate concrete according to the ambient temperature to prevent the initial setting of concrete in advance and from remaining at the elbow, and finally, when the initial setting phenomenon occurs, water can be added in time to slow down or eliminate the initial setting phenomenon.

Description

Technical Field

[0001] The invention relates to the technical field of concrete construction, in particular to a concrete placing boom for building construction with an anti-condensation structure. Background Art

[0002] In the patent application with application announcement number CN119195486A, it includes a stand and a conveying pipe group, the conveying pipe group includes a conveying pipe and an extension pipe, the extension pipe is bent vertically downward at one end away from the conveying pipe, and a rotating frame is provided outside the end of the extension pipe away from the conveying pipe. The rotating frame is rotatably connected to the stand, and a rotating part is also provided on the stand, and the rotating part is used to drive the rotating frame to rotate. The conveying pipe group also includes a hose and a telescopic pump pipe, one end of the hose is connected to the extension pipe, and the other end is connected to the feed end of the telescopic pump pipe. The telescopic pump pipe is arranged on the rotating frame, and the discharge end is tilted downward, and the adjustment component is used to adjust the height of the discharge end of the telescopic pump pipe. The advantages are: the setting of the telescopic pump tube and the adjustment component enables the adjustment component to change the height of the discharge end of the telescopic pump tube, and the telescopic function of the telescopic pump tube can adjust the position of its own discharge end, so that the discharge end of the telescopic pump tube can be sufficiently close to the side area to be poured after adjustment, so that the present application does not need to install an additional chute or chute to pour the side area to be poured, thereby improving the pouring efficiency of the side of the pouring part, and also enables the present application to adjust the pouring direction and angle at multiple angles, so that it can pour the restricted planes, beam-column-slab planes and multiple-angle facades in the pouring area, effectively improving the pouring efficiency and practicality of the present application.

[0003] In the prior art, including the aforementioned patents, during concrete spreading operations, concrete can easily begin to set or completely set within the concrete placing boom's pipes due to factors such as excessively high or low ambient temperatures or prolonged waiting times for raw materials. Performing forward and reverse pumping at this time poses a risk of pipe bursting. Dismantling the corresponding pipes for maintenance undoubtedly increases unnecessary workload and delays project progress. Furthermore, it is worth noting that elbows are the most prone to blockage due to settling. If these blockages are not discovered promptly, the probability of concrete setting upstream and downstream of the elbows increases, further increasing workload and reducing work efficiency. Furthermore, prior manual concrete placing booms require pre-installation of their counterweights to ensure construction safety. This requires workers to level the equipment during installation. Furthermore, for concrete placing booms of special sizes, auxiliary components such as balance beams and guide ropes are required. Furthermore, prior art installations require at least three lifts to complete, further increasing the workload and reducing installation efficiency. Summary of the Invention

[0004] The problem to be solved by the present invention is that when concrete is at the elbow of the concrete placing machine pipe, aggregate is easily deposited and causes coagulation and blockage due to the different flow rates inside and outside, and the existing equipment has a relatively complicated process when hoisting.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a concrete placing boom for construction with an anti-condensation structure, comprising a mounting frame, a pipe assembly mounted on the mounting frame, the pipe assembly mainly comprising elbow 1 and elbow 2, the internal components of elbow 1 and elbow 2 are both used to prevent stratification of concrete at the elbow due to different flow rates of the inner and outer layers, which ultimately leads to a large amount of concrete remaining at the elbow, and a sprinkler assembly that can be opened by water pressure control is also provided in elbow 1, and the sprinkler assembly in elbow 1 is used to replenish water for concrete when the concrete begins to set, a counterweight assembly is provided at the end of the forearm of the mounting frame, and a mounting plate 1 is provided inside the elbow 1, and the shape of the mounting plate 1 is the same as that of the elbow but only There is one-half of an elbow, and several baffles are fixedly set inside the mounting plate. One of the baffles is composed of two arc-shaped plates with an inclination angle. The baffles are close to the center of the elbow from the feed to the discharge. The mounting plate of the baffle is provided with an opening for temperature conduction and water supply. The elbow is also provided with an opening at the same position. A mounting cylinder is fixedly set on the side of the baffle away from the internal space of the elbow, and a spring is fixedly set inside the mounting cylinder. A sealing gasket is fixedly set on the other end of the spring. The sealing gasket is located on the side of the baffle close to the internal space of the elbow. A telescopic rod is provided inside the spring, and the two ends of the telescopic rod are fixedly connected to the mounting cylinder and the sealing gasket respectively.

[0006] Preferably, the pipeline assembly includes a feed pipe, which is connected to the mounting frame. The feed pipe under the mounting frame arm is connected to elbow 2, and the feed point of elbow 1 is connected to the upstream pipeline. The feed point of elbow 1 can be parallel or perpendicular to the ground (when the upstream pipeline is located below the feed point of the elbow).

[0007] Preferably, the feed point of the elbow 2 is also connected to the upstream pipeline, and the feed point of the elbow 2 can only be perpendicular to the ground (when the upstream pipeline is located above the feed point of the elbow). The feed pipe, elbow 1 and baffle 2 are all provided with cavities in the pipe wall, and the cavity can be used for the passage of hot and cold water for heat preservation and moisture retention.

[0008] Preferably, a mounting plate 2 is provided inside the elbow 2, and the specifications of the mounting plate 2 are consistent with those of the mounting plate 1. A baffle 2 is fixedly provided inside the mounting plate 2, and neither the elbow 2 nor the mounting plate 2 has an opening connected to the cavity.

[0009] Preferably, the counterweight assembly includes a fixed counterweight block which is fixedly installed below the end of the small arm of the mounting bracket. The counterweight assembly further includes a steel cable which passes through the middle of the fixed counterweight block, and one end of the steel cable near the upper part of the mounting bracket is wound around a take-up reel.

[0010] Preferably, a roller is provided between the steel cable and the take-up reel. Brackets are provided on both sides of the take-up reel. The lower ends of the brackets are fixedly connected to the mounting bracket. The brackets are rotatably connected to the take-up reel. Perforated plates are fixedly provided on both sides of the take-up reel.

[0011] Preferably, the perforated plate is annularly arranged and can be fixedly connected to the bracket by bolts. A fence is provided on the outside of the fixed counterweight block. The fence is arranged in a "C" shape, and several movable counterweight blocks are arranged inside the fence.

[0012] Preferably, the movable counterweight blocks are fixed to the mounting bracket by steel cables. A stop block is provided at the lower end of the lowermost movable counterweight block. The stop block is fixedly connected to the steel cable. The counterweight assembly further includes two symmetrical slide rails which are fixedly connected to the mounting bracket. The slide rails are slidably connected to the fence and are fixed to the fence by bolts.

[0013] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0014] (1) Under the action of the pipeline assembly, firstly, it is possible to reduce the stratification phenomenon that occurs when concrete passes through the elbow due to different flow rates, and the slurry can be used to continuously carry away the aggregate, thereby reducing the probability of concrete deposition at the source. Moreover, both the baffle and the mounting plate can be replaced at any time without replacing the elbow, which can reduce the cost during use. Secondly, through the cavity and external components such as water pumps, water at different temperatures can be used to heat-insulate the concrete according to the ambient temperature, preventing the slurry from freezing due to low temperature and reducing the fluidity, and also preventing the slurry from evaporating too fast due to high temperature, which may lead to premature initial setting of the concrete. In this way, the influence of temperature on the concrete can be reduced, further reducing the probability of concrete coagulation. Finally, when the concrete shows the phenomenon of initial setting, it is also possible to replenish water to the concrete by controlling the water pressure to slow down or eliminate the initial setting phenomenon, which can ensure the working efficiency and also provide time guarantee for workers to disassemble the pipe for maintenance;

[0015] (2) Under the action of the counterweight assembly, first, workers can complete the installation without relying on the tower crane. This not only shortens the time for installing the counterweight, but also simplifies the installation steps, without over-reliance on the experience of the tower crane driver and workers. Secondly, the provision of multiple counterweight blocks can enhance the modification capability of the device, so that the large arm in front of it can continue to extend to a certain extent, without the need to purchase other types of equipment. Finally, through the enclosure, not only can the center of the device be placed on the support frame by utilizing its own weight, but the rotatable part of the device can also be locked, thereby further saving the preparation time before lifting. The position of the center of gravity can also be adjusted to facilitate lifting and reduce the probability of shaking during lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the elbow of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of an elbow according to the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the elbow 2 of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the water spray assembly in the elbow 1 of the present invention;

[0021] Figure 6 Schematic diagram of the flow direction of concrete in elbow 1 according to the present invention;

[0022] Figure 7 Schematic diagram of the flow direction of concrete in elbow 2 of the present invention;

[0023] Figure 8 This is an enlarged structural diagram of the counterweight assembly of the present invention;

[0024] Figure 9 For the present invention Figure 8 A in the middle is an enlarged structural diagram;

[0025] Figure 10 This is a schematic cross-sectional view of the counterweight assembly of the mounting frame of the present invention.

[0026] In the figure: 1. Mounting frame; 2. Pipe assembly; 201. Feed pipe; 202. Elbow 1; 2021. Mounting plate 1; 2022. Baffle 1; 2023. Mounting cylinder; 2024. Spring; 2025. Sealing gasket; 2026. Telescopic rod; 203. Elbow 2; 2031. Mounting plate 2; 2032. Baffle 2; 3. Counterweight assembly; 301. Fixed counterweight; 302. Steel cable; 303. Reel; 304. Roller; 305. Bracket; 306. Perforated plate; 307. Enclosure; 308. Movable counterweight; 309. Block; 310. Slide rail. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0028] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words “including” or “comprising” and the like used in this disclosure mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words “connected” or “connected” and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. “Up”, “down”, “left”, “right” and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] like Figures 1 to 10As shown, the present invention provides a construction concrete placing boom with an anti-condensation structure, including a mounting frame 1, a pipe assembly 2 mounted on the mounting frame 1, the pipe assembly 2 mainly including an elbow 1 202 and an elbow 2 203, the internal components of the elbow 1 202 and the elbow 2 203 are both used to prevent the stratification of concrete at the elbow due to the different flow rates of the inner and outer layers, which eventually leads to a large amount of concrete remaining at the elbow, and a sprinkler assembly that can be opened by water pressure control is also provided in the elbow 1 202, and the sprinkler assembly in the elbow 1 202 is used to replenish water for the concrete when the concrete begins to set, a counterweight assembly 3 is provided at the end of the forearm of the mounting frame 1, a mounting plate 1 2021 is provided inside the elbow 1, the shape of the mounting plate 1 2021 is the same as that of the elbow but only half of the elbow, and a number of fixed components are provided inside the mounting plate 1 2021 A baffle 1 2022 is formed, and a baffle 1 2022 is composed of two arc-shaped plates with an inclination. The baffle 1 2022 is close to the center of the elbow from the feed to the discharge. The mounting plate 1 2021 at the baffle 1 2022 is provided with an opening for temperature conduction and water supply. The elbow 1 202 is also provided with an opening at the same position. A mounting cylinder 2023 is fixedly provided on the side of the baffle 1 2022 away from the internal space of the elbow 1 202. A spring 2024 is fixedly provided inside the mounting cylinder 2023, and a sealing gasket 2025 is fixedly provided on the other end of the spring 2024. The sealing gasket 2025 is located on the side of the baffle 1 2022 close to the internal space of the elbow 1 202. A telescopic rod 2026 is provided inside the spring 2024, and the two ends of the telescopic rod 2026 are fixedly connected to the mounting cylinder 2023 and the sealing gasket 2025 respectively.

[0030] The pipeline assembly 2 includes a feed pipe 201, and the feed pipes 201 are connected to the mounting frame 1. The feed pipe 201 below the upper arm of the mounting frame 1 is connected to the elbow 2 203, and the feed point of the elbow 1 202 is connected to the upstream pipeline. The feed point of the elbow 1 202 can be parallel or perpendicular to the ground (when the upstream pipeline is located below the feed point of the elbow).

[0031] The feed point of elbow 203 is also connected to the upstream pipeline. The feed point of elbow 203 can only be perpendicular to the ground (when the upstream pipeline is above the feed point of the elbow). The pipe walls of the feed pipe 201, elbow 1 202 and baffle 2 2032 are all provided with cavities, which can be used for the passage of hot and cold water for heat preservation and moisturizing.

[0032] Inside the elbow two 203, there is a mounting plate two 2031. The mounting plate two 2031 has the same specifications as the mounting plate one 2021. Inside the mounting plate two 2031, there is a baffle two 2032 fixedly arranged. Neither the elbow two 203 nor the mounting plate two 2031 has an opening connected to the cavity. At the flanges of the elbow one 202 and the elbow two 203, there are slots for installing the mounting plate one 2021 and the mounting plate two 2031. And during installation, the remaining part of the slot opening needs to be filled with a sealing ring to prevent concrete from entering the opened slot.

[0033] The counterweight component 3 includes a fixed counterweight block 301. The fixed counterweight block 301 is fixedly installed below the end of the small arm of the mounting frame 1. The counterweight component 3 further includes a steel cable 302. The steel cable 302 passes through the middle of the fixed counterweight block 301. One end of the steel cable 302 close to the upper part of the mounting frame 1 is wound around the winding shaft 303.

[0034] Between the steel cable 302 and the winding shaft 303, there is a roller 304. On both sides of the winding shaft 303, there are brackets 305. The lower ends of the brackets 305 are fixedly connected to the mounting frame 1. The brackets 305 are rotationally connected to the winding shaft 303. On both sides of the winding shaft 303, there are perforated plates 306 fixedly arranged.

[0035] The perforated plate 306 is annularly arranged. The perforated plate 306 can be fixedly connected to the bracket 305 through bolts. Outside the fixed counterweight block 301, there is a fence 307. The fence 307 is arranged in a "C" shape. Inside the fence 307, there are several movable counterweight blocks 308.

[0036] The movable counterweight blocks 308 are fixedly connected to the mounting frame 1 through the steel cable 302. At the lower end of the lowermost movable counterweight block 308, there is a stop block 309. The stop block 309 is fixedly connected to the steel cable 302. The counterweight component 3 further includes two symmetric slide rails 310. The slide rails 310 are fixedly connected to the mounting frame 1. The slide rails 310 are slidably connected to the fence 307. The slide rails 310 and the fence 307 are fixedly connected through bolts.

[0037] The working principle and usage process of the present invention: After the device is started, when the concrete passes through the elbow, it is divided into the following two situations:

[0038] When the concrete passes through the elbow, under the action of centrifugal force, some aggregates in the concrete will break away from the slurry and flow to the outer arc of the elbow, while most of the slurry will flow through the inner arc of the elbow. Under the action of the baffle one 2022 in the elbow one 202, the aggregates can be forced to move towards the inner arc, and the aggregates are carried away by the slurry. And the subsequent aggregates will continuously impact the surface of the baffle one 2022, thereby further reducing the residue of the aggregates. Moreover, after passing through the first baffle one 2022, it will hit the rear baffle one 2022 again and repeat the above process;

[0039] When the concrete passes through the second elbow 203, the aggregate will still flow to the outer arc under the action of centrifugal force and gravity, while the slurry can rush to the aggregate at the outer arc under the action of the second baffle 2032, and the aggregate can be taken away by the impact force of the slurry. In addition, during maintenance, the concrete in the middle of the second elbow 203 can also be washed away by the impact force generated by the clean water passing through the second baffle 2032.

[0040] It is worth mentioning that the cavities in the feeding pipe 201, the elbow 1 202 and the elbow 2 203 can be supplied with water by an external water pump, and the water temperature needs to be increased or decreased according to the ambient temperature during construction. This can be used to keep the concrete warm in winter and summer to prevent the moisture in the concrete from freezing and evaporating too quickly. If the concrete is found to have initially set during use, the water pressure can be increased. After the sealing gasket 2025 is pushed out by the water pressure, the concrete can be replenished with water in time to prevent or slow down the speed of concrete setting.

[0041] When hoisting the device, workers first loosen the bolts on the perforated plate 306 to unlock the reel 303, lower the movable counterweight 308, and then pass the block 309 through the counterweight to completely separate it from the device body. After retracting the steel cable 302 and re-securing the reel 303, they loosen the bolts at the junction of the enclosure 307 and the slide rail 310 and move the enclosure 307 to the outside of the device support frame to secure it, preventing the device from rotating and restricting the rotating pipe below. After completing these operations, the hoisting can begin. After the hoisting is completed, the enclosure 307 is reset, the reel 303 is loosened again, and the appropriate number of movable counterweights 308 are connected to the mounting frame 1, and the device can be put back into use.

[0042] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A construction material placing boom with an anti-condensation structure, comprising a mounting frame (1), a pipe assembly (2) mounted on the mounting frame (1), and characterized in that: The pipe assembly (2) mainly includes an elbow 1 (202) and an elbow 2 (203). The internal components of the elbow 1 (202) and the elbow 2 (203) are used to prevent the concrete from being delaminated at the elbow due to the different flow rates of the inner and outer layers, which eventually leads to a large amount of concrete remaining at the elbow. The elbow 1 (202) is also provided with a sprinkler assembly that can be opened by water pressure control. The sprinkler assembly in the elbow 1 (202) is used to replenish water for the concrete when the concrete begins to set. The end of the small arm of the mounting frame (1) is provided with a counterweight assembly (3). The interior of the elbow 1 (202) is provided with a mounting plate 1 (221). The shape of the mounting plate 1 (221) is the same as that of the elbow but is only half of the elbow. The interior of the mounting plate 1 (221) is fixedly provided with a plurality of baffles 1 (222). One baffle 1 (222) is composed of two arc-shaped plates with an inclination angle. The baffle 1 (2022) is arranged close to the center of the elbow from the feed point to the discharge point, the mounting plate 1 (2021) at the baffle 1 (2022) is provided with an opening for conducting temperature and supplying water, and the elbow 1 (202) is also provided with an opening at the same position, a mounting cylinder (2023) is fixedly provided on the side of the baffle 1 (2022) away from the inner space of the elbow 1 (202), a spring (2024) is fixedly provided inside the mounting cylinder (2023), a sealing gasket (2025) is fixedly provided on the other end of the spring (2024), the sealing gasket (2025) is located on the side of the baffle 1 (2022) close to the inner space of the elbow 1 (202), a telescopic rod (2026) is provided inside the spring (2024), and the two ends of the telescopic rod (2026) are fixedly connected to the mounting cylinder (2023) and the sealing gasket (2025) respectively.

2. The construction material placing boom with an anti-condensation structure according to claim 1, characterized in that: The pipeline assembly (2) includes a feed pipe (201), and the feed pipes (201) are all connected to the mounting frame (1). The feed pipe (201) below the upper arm of the mounting frame (1) is connected to the second elbow (203), and the feed point of the first elbow (202) is connected to the upstream pipeline. The feed point of the first elbow (202) can be parallel to or vertical to the ground (when the upstream pipeline is located below the feed point of the elbow).

3. The construction placing boom with an anti-condensation structure according to claim 2, characterized in that: The feed point of the second elbow (203) is also connected to the upstream pipeline. The feed point of the second elbow (203) can only be vertical to the ground (when the upstream pipeline is located above the feed point of the elbow). The walls of the feed pipe (201), the first elbow (202) and the second baffle (2032) are all provided with cavities, which can be used for the passage of hot and cold water for heat preservation and moisture retention.

4. The construction placing boom with an anti-condensation structure according to claim 1, characterized in that: A second mounting plate (2031) is provided inside the second elbow (203), and the specifications of the second mounting plate (2031) are consistent with those of the first mounting plate (221). A second baffle (2032) is fixedly provided inside the second mounting plate (2031), and neither the second elbow (203) nor the second mounting plate (2031) has an opening connected to the cavity.

5. The construction placing boom with an anti-condensation structure according to claim 1, characterized in that: The counterweight assembly (3) includes a fixed counterweight block (301), the fixed counterweight block (301) is fixedly installed below the end of the small arm of the mounting frame (1), the counterweight assembly (3) further includes a steel cable (302), the steel cable (302) passes through the middle of the fixed counterweight block (301), and one end of the steel cable (302) close to the upper part of the mounting frame (1) is wound around a winding shaft (303).

6. The construction placing boom with an anti-condensation structure according to claim 5, characterized in that: A roller (304) is provided between the steel cable (302) and the winding shaft (303), brackets (305) are provided on both sides of the winding shaft (303), the lower ends of the brackets (305) are fixedly connected to the mounting frame (1), the brackets (305) are rotatably connected to the winding shaft (303), and perforated plates (306) are fixedly provided on both sides of the winding shaft (303).

7. The construction placing boom with an anti-condensation structure according to claim 6, characterized in that: The perforated plate (306) is annularly arranged, the perforated plate (306) can be fixedly connected to the bracket (305) by bolts, a fence (307) is provided on the outside of the fixed counterweight block (301), the fence (307) is arranged in a "C" shape, and a number of movable counterweight blocks (308) are provided inside the fence (307).

8. The construction placing boom with an anti-condensation structure according to claim 7, characterized in that: The movable counterweight block (308) is fixed to the mounting frame (1) by a steel cable (302), a stop block (309) is provided at the lower end of the lowermost movable counterweight block (308), the stop block (309) is fixedly connected to the steel cable (302), the counterweight assembly (3) further includes two symmetrical slide rails (310), the slide rails (310) are fixedly connected to the mounting frame (1), the slide rails (310) are slidably connected to the fence (307), and the slide rails (310) and the fence (307) are fixed by bolts.

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