A concrete delivery pump truck boom for construction

Abstract

The utility model relates to engineering machinery technical field, concretely is a kind of concrete delivery pump truck jib for construction, including mechanical arm, fixed ring, delivery pipe and plugging device, fixed ring is fixedly connected with the surface of mechanical arm, delivery pipe is set in the inner wall of fixed ring, plugging device is set on the surface of fixed ring, plugging device includes connecting block, connecting block is fixedly connected with the surface of fixed ring, and the surface of connecting block is provided with through-hole. The utility model, by setting plugging device, it is convenient to plugging for delivery pipe mouth, avoid when mechanical arm needs to recycle delivery pipe after irrigation end, still remain part cement in delivery pipe, more loss, and when next time is used, stone will fall in delivery pipe, and it is more dangerous for construction personnel to use, effectively improve the convenience of equipment.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a boom of a concrete pump truck for building construction. Background Technology

[0002] The boom of a concrete pump truck refers to the telescopic support structure installed on the pump truck. It is mainly used to support the conveying pipeline and convey concrete. It can be raised, lowered, extended, and rotated as needed to adapt to different concrete conveying distances and height requirements.

[0003] Existing technologies, such as CN221704784U, describe a sealing device for reinforced concrete pipes. This device includes a lower concrete pipe, with an upper concrete pipe clamped to its upper end. A limiting ring is fixedly connected to the end of the upper concrete pipe near the lower pipe, and a connecting block is fixedly connected to the left end of the limiting ring. A sealing cap is fixedly connected to the upper end of the upper concrete pipe. In this invention, when concrete is added through the inlet, it enters both the upper and lower concrete pipes, closing the sealing cap. Rotating the rotating blade drives the rotating shaft, which in turn compresses the driving rod behind the rotating shaft, causing the threaded post to move towards the protective pad. This increases the seal between the threaded post and the upper concrete pipe, thus better sealing the reinforced concrete pipe.

[0004] To address the issue of sealing the end of the concrete delivery pipe in existing equipment, which lacks a cap, some cement remains inside the pipe when the robotic arm needs to retrieve it after pouring, resulting in significant waste. Furthermore, stones may fall into the pipe during the next use, posing a danger to construction workers. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology of sealing the end of the concrete conveying pipe, and to propose a concrete conveying pump truck boom for building construction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a concrete pump truck boom for construction, comprising a mechanical arm, a fixed ring, a delivery pipe, and a sealing device. The fixed ring is fixedly connected to the surface of the mechanical arm, the delivery pipe is disposed on the inner wall of the fixed ring, and the sealing device is disposed on the surface of the fixed ring. The sealing device includes a connecting block, which is fixedly connected to the surface of the fixed ring. A through hole is formed on the surface of the connecting block, a long rod is sleeved and connected to the surface of the connecting block, a return spring is fixedly connected to the surface of the connecting block, and a return spring is fixedly connected to the surface of the long rod.

[0007] Furthermore, a long rod is sleeved and connected to the inner wall of the through hole, and a fixing rod is fixedly connected to the surface of the long rod.

[0008] Furthermore, a sealing cap is fixedly connected to the surface of the fixing rod, and the sealing cap is disposed on the surface of the conveying pipe.

[0009] Furthermore, the surface of the long rod is provided with toothed grooves, the surface of the connecting block is fixedly connected to a rotating motor, and the drive end of the rotating motor is rotatably connected to a rotating shaft.

[0010] Furthermore, a gear is fixedly connected to the surface of the rotating shaft, and the gear drives the gear on the inner wall of the tooth groove.

[0011] Furthermore, a return spring is fixedly connected to the side of the connecting block away from the rotating motor, the return spring is sleeved and connected to the surface of the long rod, and a connecting rod is fixedly connected to the surface of the long rod.

[0012] Furthermore, a limiting block is fixedly connected to the surface of the connecting rod, and a collar is sleeved on the surface of the conveying pipe. A groove is formed on the inner wall of the collar, and the limiting block is slidably connected to the inner wall of the groove.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, the sealing device facilitates the sealing of the conveying pipe opening, making the use of the sealing cover more convenient. When the conveying pipe is in use, the motor is started, driving the shaft to rotate. This causes gears to engage with the inner wall of the tooth groove, rotating the long rod. The long rod then rotates the sealing cover to position it, causing it to move away from the conveying pipe opening. The conveying pipe then begins operation. When the sealing cover is pulled along with the long rod, the limiting block causes the collar to shift and pull, pressing it down. The return spring is forced, and then compressed by tension. When the long rod is no longer under tension, the return spring loses its restraint and stretches back, causing the long rod to move to its original position. This causes the long rod to move the sealing cap to a position that fits against the opening of the delivery pipe and then stops. By setting up a sealing device, it is easy to seal the opening of the delivery pipe, avoiding the situation where some cement remains in the delivery pipe when the robotic arm needs to retrieve the delivery pipe after the pouring is completed, which would be quite wasteful. Furthermore, it would prevent stones from falling into the delivery pipe during the next use, which would be dangerous for construction workers. This effectively improves the convenience of the equipment. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of the boom of a concrete pump truck for building construction.

[0016] Figure 2This utility model provides a schematic diagram of the main structure of a sealing device in the boom of a concrete pump truck used in building construction;

[0017] Figure 3 This utility model provides a schematic diagram of the main structure of the through hole in the boom of a concrete pump truck for building construction.

[0018] Figure 4 This utility model provides a schematic diagram of the main structure of the long rod in the boom of a concrete pump truck for building construction.

[0019] Figure 5 This utility model proposes a method for constructing concrete pump truck booms. Figure 4 Schematic diagram at point A;

[0020] Figure 6 This utility model provides a schematic diagram of the main structure of the collar in the boom of a concrete pump truck used in building construction.

[0021] Legend:

[0022] 1. Robotic arm; 2. Fixed ring; 3. Conveying pipe; 4. Sealing device; 401. Connecting block; 402. Through hole; 403. Long rod; 404. Fixed rod; 405. Sealing cap; 406. Gear groove; 407. Rotating motor; 408. Rotating shaft; 409. Gear; 410. Return spring; 411. Connecting rod; 412. Limiting block; 413. Collar; 414. Slot. Detailed Implementation

[0023] Please see Figures 1-6 This utility model provides a technical solution: a concrete pump truck boom for construction, including a mechanical arm 1, a fixed ring 2, a conveying pipe 3 and a sealing device 4. The fixed ring 2 is fixedly connected to the surface of the mechanical arm 1, the conveying pipe 3 is disposed on the inner wall of the fixed ring 2, and the sealing device 4 is disposed on the surface of the fixed ring 2.

[0024] The specific setup and function of the sealing device 4 will be explained below.

[0025] In this embodiment: the sealing device 4 includes a connecting block 401, which is fixedly connected to the surface of the fixing ring 2. A through hole 402 is opened on the surface of the connecting block 401. A long rod (403) is sleeved and connected to the surface of the connecting block 401. A reset spring 410 is fixedly connected to the surface of the connecting block (401), and a 411 is fixedly connected to the surface of the long rod 403.

[0026] The effect achieved by the above components is that by setting through holes 402, the long rod 403 can be positioned, rotated, and slid, preventing the long rod 403 from shifting in position or angle and from falling off.

[0027] Specifically, a long rod 403 is sleeved and connected to the inner wall of the through hole 402, and a fixing rod 404 is fixedly connected to the surface of the long rod 403.

[0028] The effect achieved by the above components is as follows: by setting the fixing rod 404, it is easy to connect the sealing cover 405, so that the sealing cover 405 and the long rod 403 are connected as one piece, and the long rod 403 can drive the sealing cover 405 to move.

[0029] Specifically, a sealing cap 405 is fixedly connected to the surface of the fixing rod 404, and the sealing cap 405 is set on the surface of the conveying pipe 3.

[0030] The effect achieved by the above components is that by setting the sealing cap 405, the conveying pipe 3 can be closed when in use, so that when not in use, the residual cement and gravel in the conveying pipe 3 will not fall out and hit the construction workers.

[0031] Specifically, the surface of the long rod 403 is provided with a toothed groove 406, the surface of the connecting block 401 is fixedly connected with a rotating motor 407, and the drive end of the rotating motor 407 is rotatably connected with a rotating shaft 408.

[0032] The effects achieved by the above components are as follows: by setting the tooth groove 406, the gear 409 can rotate while driving the long rod 403 to rotate, so that the sealing cover 405 moves in position following the rotation of the long rod 403, which facilitates the opening and closing of the pipe end of the conveying pipe 3. By setting the rotating shaft 408, when the rotating motor 407 drives the rotating shaft 408 to rotate, the rotating shaft 408 can drive the gear 409 fixedly connected to its surface to rotate for positioning.

[0033] Specifically, a gear 409 is fixedly connected to the surface of the rotating shaft 408, and the gear 409 drives the gear 409 on the inner wall of the tooth groove 406.

[0034] The effect achieved by the above components is that by setting the gear 409, it is easy to transmit the gear 409 transmission with the toothed groove 406 opened on the surface of the long rod 403, thereby driving the long rod 403 to rotate in a positioning position.

[0035] Specifically, a return spring 410 is fixedly connected to the side of the connecting block 401 away from the rotating motor 407. The return spring 410 is sleeved and connected to the surface of the long rod 403. A connecting rod 411 is fixedly connected to the surface of the long rod 403.

[0036] The effect achieved by the above components is as follows: by setting the return spring 410, the sealing cover 405 will not be in contact with the opening of the conveying pipe 3 after the sealing cover 405 and the long rod 403 are subjected to tension. When subjected to tension, the limiting block 412 drives the collar 413 to move, so that the return spring 410 is subjected to tension and rebounds. The rebound force of the return spring 410 will push the limiting block 412 and the collar 413 back to their original positions, so that the sealing cover 405 is in contact with the opening of the conveying pipe 3, and the sealing cover 405 closes the conveying pipe 3.

[0037] Specifically, a limiting block 412 is fixedly connected to the surface of the connecting rod 411, and a collar 413 is sleeved and connected to the surface of the conveying pipe 3. A groove 414 is opened on the inner wall of the collar 413, and the limiting block 412 is slidably connected to the inner wall of the groove 414.

[0038] The effect achieved by the above components is as follows: by setting the collar 413 and the slot 414, the limiting block 412 can slide in the slot 414, so that the collar 413 can follow the long rod 403 fixedly connected to the limiting block 412 for displacement movement, and prevent the long rod 403 from deviating when it is in gear 409 transmission, so that the long rod 403 cannot be in contact with the gear 409 for transmission. After the limiting block 412 is set on the inner wall of the collar 413, the collar 413 can constrain the long rod 403, so that the long rod 403 can move stably and is not easy to deviate.

[0039] Working principle: By setting the sealing device 4, the use of the sealing cover 405 is more convenient when sealing the opening of the conveying pipe 3. When the conveying pipe 3 is in use, the rotating motor 407 is started, which drives the rotating shaft 408 to rotate, so that the gear 409 and the inner wall of the tooth groove 406 are driven by the gear 409, which in turn drives the long rod 403 to rotate. The long rod 403 then drives the sealing cover 405 to rotate in a positioning position, and the sealing cover 405 leaves the opening of the conveying pipe 3. The conveying pipe 3 then begins to operate. When the sealing cover 405 is pulled along with the long rod 403 under force, the limiting block 412 drives the collar 413 to move as a whole. The displacement is pulled to compress the return spring 410, which is then compressed by the tension. When the long rod 403 is no longer under tension, the return spring 410 is released from its restraint and stretches back, causing the long rod 403 to move back to its original position. The long rod 403 then moves the sealing cover 405 to a position that fits the opening of the conveying pipe 3 and stops. By setting the sealing device 4, it is easy to seal the opening of the conveying pipe 3, which avoids the situation where some cement remains in the conveying pipe 3 when the robotic arm 1 needs to retrieve the conveying pipe 3 after the pouring is completed, which is relatively wasteful. In addition, stones may fall into the conveying pipe 3 when it is used again, which is dangerous for construction personnel. This effectively improves the convenience of the equipment.

Claims

1. A boom for a concrete pump truck used in construction, comprising a robotic arm (1), a fixing ring (2), a conveying pipe (3), and a sealing device (4), characterized in that: The fixed ring (2) is fixedly connected to the surface of the robotic arm (1), the delivery pipe (3) is disposed on the inner wall of the fixed ring (2), the sealing device (4) is disposed on the surface of the fixed ring (2), the sealing device (4) includes a connecting block (401), the connecting block (401) is fixedly connected to the surface of the fixed ring (2), the surface of the connecting block (401) is provided with a through hole (402), the surface of the connecting block (401) is sleeved and connected with a long rod (403), the surface of the connecting block (401) is fixedly connected with a return spring (410), and the surface of the long rod (403) is fixedly connected with a connecting rod (411).

2. The boom of a concrete pump truck for building construction according to claim 1, characterized in that: A long rod (403) is sleeved and connected to the inner wall of the through hole (402), and a fixing rod (404) is fixedly connected to the surface of the long rod (403).

3. The boom of a concrete pump truck for building construction according to claim 2, characterized in that: A sealing cap (405) is fixedly connected to the surface of the fixing rod (404), and the sealing cap (405) is disposed on the surface of the conveying pipe (3).

4. The boom of a concrete pump truck for building construction according to claim 2, characterized in that: The surface of the long rod (403) is provided with a toothed groove (406), and a rotating motor (407) is fixedly connected to the surface of the connecting block (401). The drive end of the rotating motor (407) is rotatably connected to a rotating shaft (408).

5. The boom of a concrete pump truck for building construction according to claim 4, characterized in that: A gear (409) is fixedly connected to the surface of the rotating shaft (408), and the gear (409) drives the gear (409) on the inner wall of the tooth groove (406).

6. The boom of a concrete pump truck for building construction according to claim 4, characterized in that: A return spring (410) is fixedly connected to the side of the connecting block (401) away from the rotating motor (407). The return spring (410) is sleeved and connected to the surface of the long rod (403). A connecting rod (411) is fixedly connected to the surface of the long rod (403).

7. The boom of a concrete pump truck for building construction according to claim 6, characterized in that: The surface of the connecting rod (411) is fixedly connected to a limiting block (412), and the surface of the conveying pipe (3) is sleeved with a collar (413). The inner wall of the collar (413) is provided with a groove (414), and the limiting block (412) is slidably connected to the inner wall of the groove (414).

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