A cantilevered pump pipe droop compensation welding structure for electric pole pumping

Abstract

The utility model provides a cantilever formula pump pipe droop compensation welding structure for electric pole pumping relates to compensation welding technical field, including pump pipe main part, the horizontal array of the bottom surface of pump pipe main part is equipped with mount, the surface of mount all is equipped with two limit grooves, both sides of two limit grooves all are equipped with limit post, the bottom of pump pipe main part is equipped with two reinforcing ribs, the horizontal array of two reinforcing ribs middle is equipped with connecting plate, adopt to reinforcing rib and carry out the package clamping type constraint, even if partial weld because of fatigue cracking and unstick, reinforcing rib can keep in situ by mount and limit post, will not slip or fall off, thereby guaranteeing that pump pipe is still stable and reliable under the action of high frequency vibration and alternating load, avoids the influence construction safety because of droop or swing. Solve the weld of reinforcing rib and pump pipe junction because of fatigue and unstick in the process of concrete pumping sustained high frequency vibration to make reinforcing rib lose the effect of support thereby the shortcoming of serious threat construction safety.

Description

Technical Field

[0001] This utility model relates to the field of compensation welding technology, and in particular to a cantilever pump pipe sagging compensation welding structure for electric pole pumping. Background Technology

[0002] In building construction and infrastructure development, concrete pumping technology has become an indispensable part. Among these, cantilever pumping arms are widely used due to their wide operating range and high flexibility, especially in high-altitude or hard-to-reach areas, such as pouring foundations for utility poles. However, as the pumping arm extends, the pump pipe experiences significant sagging deformation due to its own weight and the weight of the concrete inside. This sagging not only affects the accuracy of pumping but can also lead to uneven stress distribution within the pump pipe, potentially causing fatigue damage or even structural failure over prolonged operation, posing a safety hazard. Furthermore, sagging increases pumping resistance, reduces pumping efficiency, and places an additional burden on the pumping equipment. To address this issue, steel bars are often used as reinforcing ribs, fixed to the pump pipe body by welding. However, this welded structure faces a significant technical challenge: during pumping, the pulsating flow of concrete generates continuous high-frequency vibrations. Long-term, high-intensity vibrations generate enormous fatigue stress on the weld between the steel bars and the pump pipe. Under repeated stress, micro-cracks easily appear in the weld, gradually propagate, and eventually cause the steel bars to detach from the weld. If the reinforcing bars detach from the weld, the overall structural strength of the pump pipe will drop sharply, which will not only affect the pumping efficiency and accuracy, but may also cause serious safety accidents such as pump pipe breakage during operation. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where continuous high-frequency vibration during concrete pumping causes fatigue-induced weld detachment at the connection between the reinforcing rib and the pump pipe, resulting in the reinforcing rib losing its supporting function and seriously threatening construction safety. Therefore, this invention proposes a cantilevered pump pipe sag compensation welding structure for electric pole pumping.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a cantilever pump pipe sag compensation welding structure for electric pole pumping, comprising a pump pipe body, a fixing frame arranged in a horizontal array on the bottom surface of the pump pipe body, two limiting grooves on the surface of each fixing frame, and limiting posts on both sides of each limiting groove, two reinforcing ribs at the bottom of the pump pipe body, a connecting plate arranged in a horizontal array between the two reinforcing ribs, and limiting blocks on both sides of each end of the two reinforcing ribs.

[0005] Preferably, the fixing brackets are all welded to the pump pipe body, and the cross-section of the fixing brackets is U-shaped.

[0006] Preferably, the two limiting grooves on the surface of the fixing frame are mirror images of the pump pipe body, and the limiting grooves are located on the arc-shaped edge of the fixing frame.

[0007] Preferably, the positions of the two reinforcing ribs at the bottom of the pump pipe body correspond one-to-one with the positions of the limiting grooves on the surface of the fixing frame, and both reinforcing ribs are installed in the limiting grooves on the surface of the fixing frame, which are arranged in a horizontal array at the bottom of the pump pipe body, and the top surfaces of the two reinforcing ribs are welded to the bottom surface of the pump pipe body.

[0008] Preferably, the connecting plate, which is horizontally arranged between the two reinforcing ribs, is perpendicular to the pump pipe body, and the cross-section of the connecting plate is arc-shaped. Both ends of the connecting plate are welded to the two reinforcing ribs.

[0009] Preferably, the limiting posts on both sides of the two limiting grooves on the surface of the fixing frame are welded to two reinforcing ribs.

[0010] Preferably, the two limiting blocks on both sides of the two reinforcing ribs are mirror images of the reinforcing ribs, and the limiting blocks are welded to the pump pipe body.

[0011] Beneficial effects

[0012] In this invention, two sets of limiting blocks are welded to both ends of the bottom of the pump pipe. Each set of limiting blocks consists of two limiting posts. Two reinforcing ribs are fixed between the limiting blocks and fitted to the bottom surface of the pump pipe. The reinforcing ribs are then welded along their entire length. A transverse connecting plate is then added between the reinforcing ribs to form an integral frame, enhancing rigidity and load-bearing capacity. A fixing frame is then welded longitudinally to the bottom surface of the pump pipe. The fixing frame has an arc-shaped limiting groove that fits tightly against the outer arc surface of the reinforcing rib, providing secondary limiting and reinforcement. Limiting posts are then welded to both sides of the fixing frame to clamp and constrain the reinforcing ribs. Even if a local weld cracks due to fatigue, the reinforcing ribs can remain in place thanks to the fixing frame and limiting posts, preventing slippage or detachment. This ensures the pump pipe remains stable and reliable under high-frequency vibration and alternating loads, preventing sagging or swaying that could affect construction safety. This invention solves the problem that continuous high-frequency vibration during concrete pumping causes fatigue-induced weld detachment at the connection between the reinforcing ribs and the pump pipe, resulting in the reinforcing ribs losing their supporting function and seriously threatening construction safety. Attached Figure Description

[0013] Figure 1 This is an isometric drawing of the present invention;

[0014] Figure 2 This is a partial isometric view of the lower part of this utility model;

[0015] Figure 3 This is an upward isometric view of the present invention;

[0016] Figure 4This is a perspective view of the present invention.

[0017] Legend:

[0018] 1. Pump pipe body; 2. Fixing frame; 3. Limiting groove; 4. Reinforcing rib; 5. Connecting plate; 6. Limiting column; 7. Limiting block. Detailed Implementation

[0019] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0020] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0022] Reference Figure 1-4 A cantilever pump pipe sag compensation welding structure for electric pole pumping includes a pump pipe body 1. A fixing frame 2 is horizontally arranged on the bottom surface of the pump pipe body 1. Each fixing frame 2 has two limiting grooves 3 on its surface, and limiting posts 6 are provided on both sides of each limiting groove 3. Two reinforcing ribs 4 are provided at the bottom of the pump pipe body 1. A connecting plate 5 is horizontally arranged between the two reinforcing ribs 4, and limiting blocks 7 are provided on both ends of each reinforcing rib 4. The fixing frames 2 are welded to the pump pipe body 1, and the cross-section of the fixing frame 2 is U-shaped. The two limiting grooves 3 on the surface of the fixing frame 2 are mirror images of the pump pipe body 1, and the limiting grooves 3 are located on the arc-shaped edge of the fixing frame 2. The two reinforcing ribs at the bottom of the pump pipe body 1... The positions of the two reinforcing ribs 4 correspond one-to-one with the positions of the limiting grooves 3 on the surface of the fixing frame 2. Both reinforcing ribs 4 are installed in the limiting grooves 3 on the surface of the fixing frame 2, which are horizontally arranged at the bottom of the pump pipe body 1. The top surfaces of the two reinforcing ribs 4 are welded to the bottom surfaces of the pump pipe body 1. The connecting plate 5, which is horizontally arranged in the middle of the two reinforcing ribs 4, is perpendicular to the pump pipe body 1. The cross-section of the connecting plate 5 is arc-shaped. Both ends of the connecting plate 5 are welded to the two reinforcing ribs 4. The limiting posts 6 on both sides of the two limiting grooves 3 on the surface of the fixing frame 2 are welded to the two reinforcing ribs 4. The two limiting blocks 6 on both sides of the two reinforcing ribs 4 are mirror images of the reinforcing ribs 4. The limiting blocks 7 are welded to the pump pipe body 1.

[0023] Before using the pump pipe, the two ends of the two reinforcing ribs 4 are accurately embedded and welded between two sets of limiting blocks 7 at both ends of the bottom surface of the pump pipe body 1. Each set of limiting blocks 7 consists of two blocks arranged symmetrically to initially limit and fix the ends of the reinforcing ribs 4, ensuring that the reinforcing ribs 4 remain in contact with the bottom surface of the pump pipe body 1 during installation and are arranged in a mirror image to ensure uniform stress. Subsequently, the reinforcing ribs 4 are welded to the bottom surface of the pump pipe body 1 along their entire length. The reinforcing ribs 4 are usually made of steel bars of appropriate diameter to balance strength and weldability. After welding, the two reinforcing ribs 4 are laterally connected into a whole by multiple connecting plates 5 arranged at equal intervals. The number and position of the connecting plates 5 are designed and arranged according to the length of the reinforcing ribs 4 on site to form a stable frame structure, thereby further improving the overall rigidity and load-bearing capacity. Subsequently, multiple fixing frames 2 are evenly spaced longitudinally on the bottom surface of the pump pipe body 1. The number and arrangement of the fixing frames 2 are selected according to the site conditions. Each fixing frame 2 adopts an arc-shaped limiting groove 63 structure that matches the reinforcing rib 4. When welding the fixing frame 2, the limiting groove 63 is made to fit and connect with the outer arc surface of the reinforcing rib 4. This allows the reinforcing rib 4 to not only be connected to the pump pipe body 1 through the weld, but also to be reinforced by the fixing frame 2, greatly reducing the risk of the reinforcing rib 4 loosening due to local weld fatigue. After the fixing frames 2 are welded, limiting posts are welded to both sides of each fixing frame 2 on the surface of the reinforcing rib 4. The position of the limiting posts corresponds precisely to both sides of the fixing frame 2. This ensures that even if the local weld cracks and detaches due to fatigue when the reinforcing rib 4 is subjected to high-frequency vibration or accidental impact, the reinforcing rib 4 can still maintain a tight fit with the bottom surface of the pump pipe body 1 under the limiting action of the fixing frame 2, continuing to play a supporting role and preventing the pump pipe from sagging or swaying due to support failure. Meanwhile, because the limiting columns form a clamping restriction on both sides of the fixing frame 2, the reinforcing rib 4 can still be firmly fixed in its original position after the weld is detached, and will not slip or shift laterally. This ensures that the pump pipe can maintain a stable stress state even under continuous high-frequency vibration and alternating load during concrete pumping. This effectively solves the defect in traditional structures where the weld between the reinforcing rib 4 and the pump pipe is prone to fatigue detachment, resulting in loss of support and serious threat to construction safety. The safety and reliability of the overall structure are significantly improved. Specific Implementation Example 2:

[0025] Reference Figure 1-4A cantilever pump pipe sag compensation welding structure for electric pole pumping is further based on the basic structure in Specific Embodiment 1. Before the installation of the pump pipe body 1, the reinforcing rib 4 is initially positioned by limiting blocks 7. The limiting blocks 7 are symmetrically fixed in pairs on the bottom surface of the pump pipe body 1. Their clamping space strictly controls the position of the two ends of the reinforcing rib 4, so that the reinforcing rib 4 can fit tightly against the bottom surface of the pump pipe during the installation process, avoiding axial displacement or end misalignment, thereby providing a precise installation reference for subsequent welding. Subsequently, the reinforcing rib 4 is welded to the bottom surface of the pump pipe along its entire length. In this process, the reinforcing rib 4, as the main load-bearing unit, forms an integral force-bearing structure with the pump pipe body 1, ensuring that the pump pipe has bending rigidity and anti-sag capacity when bearing its own weight and pumping load. After welding, the reinforcing rib 4 can effectively share the bending moment and vibration impact from the pump pipe along its entire length. After the full-length welding is completed, the two parallel reinforcing ribs 4 are laterally connected by connecting plates 5 arranged at equal intervals. The two ends of the connecting plates 5 are firmly welded to the reinforcing ribs 4 to form a stable frame, so that the force between the reinforcing ribs 4 can be transmitted laterally and evenly distributed, avoiding local deformation caused by the independent force on a single reinforcing rib 4. Next, the fixing frame 2 is arranged longitudinally at equal intervals on the bottom surface of the pump pipe body 1 and welded and fixed. The cross-section of the fixing frame 2 is U-shaped, and the limiting groove 63 opened on its arc edge fits with the outer arc surface of the reinforcing rib 4. It can provide secondary limiting support on the basis of the full-length weld of the reinforcing rib 4, so that the reinforcing rib 4 no longer relies solely on the weld itself to bear the entire load during pumping, but achieves load distribution through the synergistic effect of the weld and the fixing frame 2, which greatly reduces the risk of loosening or breakage caused by weld fatigue. After the fixing frame 2 is welded, limiting posts are added to both sides and firmly welded to the reinforcing rib 4. The limiting posts are precisely aligned with the fixing frame 2, forming a clamping restraint on both sides of the reinforcing rib 4. This ensures that the reinforcing rib 4 remains stably fitted under continuous vibration or alternating impact. Even if local weld cracks occur, the limiting posts can still prevent the reinforcing rib 4 from shifting laterally or peeling off entirely, ensuring its continued support function and preventing pump pipe sagging or swaying due to failure. This allows the pump pipe to maintain overall rigidity and stability under long-term operating conditions, effectively avoiding structural sagging and swaying hazards, and significantly improving the safety and reliability of the construction process.

[0026] In summary:

[0027] 1. Two sets of limiting blocks 7 are welded to both ends of the bottom of the pump pipe. Each set of limiting blocks 7 consists of two limiting posts. Two reinforcing ribs 4 are fixed between the limiting blocks 7 and attached to the bottom surface of the pump pipe. The reinforcing ribs 4 are then welded along their entire length. A transverse connecting plate 5 is then added between the reinforcing ribs 4 to form an integral frame, enhancing rigidity and load-bearing capacity. Subsequently, a fixing frame 2 is welded longitudinally to the bottom surface of the pump pipe. The fixing frame 2 has an arc-shaped limiting groove 63 that fits tightly against the outer arc surface of the reinforcing ribs 4, providing secondary limiting and reinforcement. Limiting posts are then welded to both sides of the fixing frame 2 to clamp and constrain the reinforcing ribs 4. Even if a local weld cracks and detaches due to fatigue, the reinforcing ribs 4 can remain in place thanks to the fixing frame 2 and the limiting posts, preventing slippage or detachment. This ensures the pump pipe remains stable and reliable under high-frequency vibration and alternating loads, preventing sagging or swaying from affecting construction safety. This invention addresses the drawback of continuous high-frequency vibration during concrete pumping, which causes fatigue-induced weld detachment at the connection between the reinforcing rib 4 and the pump pipe, resulting in the reinforcing rib 4 losing its supporting function and thus seriously threatening construction safety.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cantilever pump pipe sag compensation welded structure for pole pumping, comprising a pump pipe body (1), characterized in that: The bottom surface of the pump pipe body (1) is provided with a horizontal array of fixing frames (2). The surface of the fixing frames (2) is provided with two limiting grooves (3), and the two limiting grooves (3) are provided with limiting posts (6) on both sides. The bottom of the pump pipe body (1) is provided with two reinforcing ribs (4). The middle of the two reinforcing ribs (4) is provided with a horizontal array of connecting plates (5), and the two ends of the two reinforcing ribs (4) are provided with limiting blocks (7).

2. The cantilever pump pipe sag compensation welding structure for electric pole pumping according to claim 1, characterized in that: The fixing brackets (2) are all welded to the pump pipe body (1), and the cross-section of the fixing brackets (2) is U-shaped.

3. The cantilever pump pipe sag compensation welding structure for electric pole pumping according to claim 1, characterized in that: The two limiting grooves (3) on the surface of the fixed frame (2) are mirror images of the pump pipe body (1) and the limiting grooves (3) are located on the arc edge of the fixed frame (2).

4. The cantilever pump pipe sag compensation welding structure for electric pole pumping according to claim 1, characterized in that: The positions of the two reinforcing ribs (4) at the bottom of the pump pipe body (1) correspond one-to-one with the positions of the limiting grooves (3) on the surface of the fixing frame (2). Both reinforcing ribs (4) are installed in the limiting grooves (3) on the surface of the fixing frame (2) which are arranged in a horizontal array at the bottom of the pump pipe body (1). The top surfaces of the two reinforcing ribs (4) are welded to the bottom surface of the pump pipe body (1).

5. The cantilever pump pipe sag compensation welding structure for electric pole pumping according to claim 1, characterized in that: The connecting plate (5) arranged horizontally between the two reinforcing ribs (4) is perpendicular to the pump pipe body (1), and the cross-section of the connecting plate (5) is arc-shaped. Both ends of the connecting plate (5) are welded to the two reinforcing ribs (4).

6. The cantilever pump pipe sag compensation welding structure for electric pole pumping according to claim 1, characterized in that: The limiting posts (6) on both sides of the two limiting grooves (3) on the surface of the fixing frame (2) are welded to the two reinforcing ribs (4).

7. The cantilever pump pipe sag compensation welding structure for pole pumping according to claim 1, characterized in that: The two limiting blocks (6) on both sides of the two reinforcing ribs (4) are mirror images of the reinforcing ribs (4) and the limiting blocks (7) are welded to the pump pipe body (1).

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