Pump station engineering water inlet and flow guide cone integral type disassembly-free positioning template

Abstract

The utility model relates to the technical field of water conservancy pump station engineering construction, in particular to a pump station engineering water inlet and flow guide cone integrated disassembly-free positioning formwork which comprises a formwork body, a supporting system and an integrated positioning system. The formwork body is composed of a disassembly-free positioning formwork, a perforated back ridge and an anchor bar, the disassembly-free positioning formwork and the perforated back ridge are welded and fixed, and the anchor bar extends to a concrete pouring area to enhance the binding force; the supporting system achieves vertical and horizontal two-way accurate positioning of the formwork through fixing and adjusting vertical rods, pull rods and adjusters. The integrated positioner is installed in the center of the inner side of the formwork and used for hoisting and correcting the position in real time. Through the modular design, the disassembly-free characteristic and the adjustable support, the problems that a traditional formwork is low in installation precision and the structure is prone to being damaged when the formwork is disassembled are solved, the construction efficiency is remarkably improved, the later maintenance cost is reduced, and meanwhile the waterproof performance and durability of the structure are ensured.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy pumping station construction technology, specifically a non-removable positioning template for the water inlet and guide cone of a pumping station project. Background Technology

[0002] In pump station construction, traditional formwork techniques are commonly used for the construction of the inlet and guide cone. During installation, because the formwork is modular, extensive manual labor is required for precise assembly. This assembly process is not only time-consuming, but manual assembly also makes it difficult to ensure the tightness and accuracy of each joint. This leads to problems such as grout leakage, misalignment, and formwork bulging during concrete pouring, significantly affecting the forming quality of the inlet and guide cone.

[0003] Secondly, the removal of formwork after construction is difficult and risky. During removal, even slight carelessness can damage the already poured concrete structure, causing cracks and chipped corners, and potentially affecting the structural stability and safety of the entire pumping station project. Traditional formwork has limited positioning accuracy, making it difficult to meet the high-precision design requirements of modern pumping station projects for inlets and guide cones. Positioning deviations may lead to differences between the dimensions of the inlet and guide cone and the design drawings, thus affecting the smooth flow of water, reducing pumping efficiency, increasing energy consumption, and even causing abnormal pump unit operation such as vibration.

[0004] In summary, traditional formwork for pump station inlets and guide cones has significant limitations in terms of construction efficiency, construction quality, and overall project performance. There is an urgent need for a new, more efficient, and reliable formwork technology to solve these problems and meet the current construction needs of pump station projects. Utility Model Content

[0005] The purpose of this utility model is to provide an integral, non-removable positioning template for the water inlet and guide cone of a pumping station project, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An integrated, non-removable positioning template for the water inlet and guide cone of a pumping station project, comprising a template body, a support system, and an integrated positioning system;

[0008] The template body consists of a non-removable positioning template, a perforated back rib, and anchor bars. The back surface of the non-removable positioning template is welded and fixed to the perforated back rib, and the anchor bars are welded to the back of the non-removable positioning template and extend to the concrete pouring area.

[0009] The support system includes a fixed adjusting upright, a fixed adjusting tie rod, and an adjuster. The fixed adjusting upright is vertically connected to the ground steel pad and the fixing thread at the bottom of the template. One end of the fixed adjusting tie rod extends into the through hole on the non-removable positioning template through a fixing nut, and the other end is connected to the fixed steel plate. The middle is connected by the adjuster.

[0010] The integrated positioning system includes an integrated positioner, which is installed at the center of the upper inner edge of the template and is used to correct the position of the template in real time during hoisting.

[0011] The non-removable positioning template is retained in the concrete structure after construction, and the holes of the fixed adjustment poles and fixed adjustment tie rods after removal are sealed with inclined sealing screws.

[0012] As a further embodiment of this utility model: the perforated back rib is a longitudinally arranged flat steel frame with a longitudinal spacing of 200-400mm, and the surface of the flat steel is uniformly provided with round holes with a diameter of 20-30mm.

[0013] As a further embodiment of this utility model: the anchor bar is a straight threaded steel bar, which is welded to the surface of the non-removable positioning template in a quincunx pattern, and the length of the extension section anchored into the concrete is 150-200mm.

[0014] As a further embodiment of this utility model: the adjuster is a bidirectional threaded sleeve structure, including a positive thread section and a negative thread section, and the template installation accuracy can be finely adjusted by rotating the adjuster.

[0015] As a further embodiment of this utility model: the fixing steel plate is a steel plate with a pre-embedded nut, the pre-embedded screw is connected to the fixing adjustment rod by a thread, and the size of the steel plate is not less than 200mm×200mm×10mm.

[0016] As a further embodiment of this utility model: the integrated positioner includes a steel wire and a quick leveling mechanism, the quick leveling mechanism integrating an tilt sensor, and the positioning accuracy error ≤2mm.

[0017] As a further embodiment of this utility model: the fixing screw is an internally threaded sleeve, which is welded inside the template and fixed to the threaded rod at the top of the fixing and adjusting rod by screwing.

[0018] As a further embodiment of this utility model: the inclined sealing screw is a stainless steel tapered bolt, the taper of which matches the chamfer of the inner wall of the hole, and the surface is flush with the template surface after sealing.

[0019] As a further embodiment of this utility model: the surface of the non-removable positioning template is coated with an epoxy resin anti-rust coating with a coating thickness of not less than 240μm.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] The integrated formwork can be directly installed after hoisting, eliminating the need for separate splicing steps and saving more than 50% of labor time; the regulator and telescopic uprights work together to achieve rapid fine-tuning, shortening the positioning time; the smooth surface of the formwork and its rigid connection with the perforated back ribs eliminate grout leakage and misalignment, and the concrete forming size error is ≤3mm; the formwork is permanently retained in the concrete, avoiding damage during removal and improving structural stability; precise positioning ensures that the size of the water inlet and the guide cone matches the design, reducing water flow resistance by 15% and increasing the pumping efficiency of the pumping station by 10%; the fixed regulating uprights and multi-angle perforation design adapt to complex construction scenarios, and the one-way rotation disassembly mechanism of the regulator simplifies the operation process. Attached Figure Description

[0022] Figure 1 This is a perspective view of the integral, non-removable positioning template in this utility model.

[0023] Figure 2 This is a three-dimensional structural diagram of the integral, non-removable positioning template in this utility model.

[0024] Figure 3 This is a top view of the integral, non-removable positioning template in this utility model.

[0025] Figure 4 This is a schematic diagram of the integrated positioner in this utility model.

[0026] Figure 5 This is a schematic diagram showing the usage state of the integral, non-removable positioning template in this utility model.

[0027] In the diagram: 1-No-removal positioning template, 2-Perforated back brace, 3-Anchor bar, 4-Fixed adjustment pole, 5-Fixed adjustment rod, 6-Adjuster, 7-Fixed steel plate, 8-Fixed thread, 9-Fixed nut, 10-Integrated positioning device, 11-Angled sealing screw, 10.1-Steel wire, 10.2-Quick leveling mechanism. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0030] Please see Figures 1-5This utility model provides an integrated, non-removable positioning template for the water inlet and guide cone of a pumping station project. The template body consists of a non-removable positioning template 1, a perforated back rib 2, and an anchor bar 3. The back surface of the non-removable positioning template 1 is welded and fixed to the perforated back rib 2, and the anchor bar 3 is welded to the back of the non-removable positioning template 1 and extends to the concrete pouring area.

[0031] The support system includes a fixed adjusting pole 4, a fixed adjusting tie rod 5, and an adjuster 6. The fixed adjusting pole 4 is vertically connected to the ground steel pad plate and the fixing thread 8 at the top of the template. One end of the fixed adjusting tie rod 5 extends into the through hole of the non-removable positioning template 1 through a fixing nut 9, and the other end is connected to the fixed steel plate 7. The middle is connected by the adjuster 6.

[0032] The integrated locator 10 is installed at the center of the inner upper edge of the non-removable positioning template 1, and is used to monitor the installation position of the template in real time during the hoisting process;

[0033] The non-removable positioning template 1 is retained in the concrete structure after construction, and the holes of the fixed adjustment pole 4 and fixed adjustment tie rod 5 after removal are sealed by the inclined sealing screw 11.

[0034] The perforated back rib 2 is a longitudinally arranged flat steel frame with a longitudinal spacing of 200-400mm. The surface of the flat steel is uniformly provided with round holes with a diameter of 20-30mm to improve the bonding force and anchoring force between the non-removable positioning template 1 and the concrete, and to ensure that the non-removable positioning template 1 is subjected to uniform force.

[0035] The anchor bar 3 is a straight threaded steel bar, which is welded to the surface of the non-removable positioning template 1 in a quincunx pattern, and the length of the extension section anchored into the concrete is 150-200mm.

[0036] The adjuster 6 is a bidirectional threaded sleeve structure, including a positive thread section and a negative thread section. Its two ends are respectively connected to the threaded ends of the fixed adjusting rod 5. The tension adjustment and quick disassembly are achieved by rotating the adjuster 6 in one direction, thereby realizing the fine adjustment of the template installation accuracy.

[0037] The fixed steel plate 7 is a steel plate with a pre-embedded nut. The pre-embedded screw is connected to the fixed adjustment rod 5 by a thread. The size of the steel plate is not less than 200mm×200mm×10mm.

[0038] The water-facing surface of the non-removable positioning template 1 is made of high-quality alloy steel plate with a thickness of 10mm±2mm and a surface roughness Ra≤0.8μm. The back surface is welded with perforated back ribs 2 with a spacing of 200-400mm, which has both erosion resistance and structural strength.

[0039] The fixed adjustment pole 4 is a telescopic sleeve structure with a fixed nut 9 at the bottom and a fixed threaded connection to the fixed threaded end 8 at the top. The telescopic adjustment range is ±50mm, which can adapt to the precise support of different construction heights. The fixed threaded end 8 is an internally threaded sleeve that is welded to the inside of the template.

[0040] The inclined sealing screw 11 is a stainless steel tapered bolt. Its taper matches the chamfer of the inner wall of the hole. After sealing, the surface is flush with the template surface. Before installation, the inclined sealing screw 11 is coated with thread adhesive and fitted with a water-swellable rubber ring with an expansion coefficient of 200% to ensure that the hole is tightly sealed and flush with the template surface.

[0041] The integrated positioner 10 is a detachable integrated positioning device, set along the center of the upper edge of the template. Its material is two intersecting steel wires 10.1, with a fast leveling mechanism 10.2 fixed in the middle, to achieve three-dimensional spatial positioning (integrated tilt sensor (X / Y / Z three axes)) with an accuracy error ≤2mm.

[0042] The rapid leveling mechanism 10.2 consists of a transparent liquid and a freely moving small ball (i.e., a bubble) inside the instrument. When the instrument is level, the bubble remains in the center. If the instrument is tilted, the bubble will deviate from the center. By observing the position of the bubble, the direction and degree of tilt of the instrument can be determined.

[0043] The surface of the non-removable positioning template 1 is coated with an epoxy resin anti-rust coating with a thickness of not less than 240μm.

[0044] This invention achieves high-precision forming of the pump station inlet and guide cone through the synergistic effect of an integrated, non-removable positioning template and a support system. During construction, the template is positioned in three dimensions using fixed adjusting rods 4, fixed adjusting tie rods 5, and an integrated positioning device 10. After concrete pouring, the main body of the template is retained. After removing the support components, the holes are sealed with inclined sealing screws 11 to ensure structural integrity and smooth water flow.

[0045] As attached Figure 1 and 2 As shown, a custom-made, non-removable positioning template 1 made of high-quality steel is used to ensure its strength and toughness. The perforated back brace 2 is processed, with precise holes drilled at specific intervals. Simultaneously, supporting components such as anchor bars 3, fixed adjusting uprights 4, and fixed adjusting tie rods 5 are prepared. At the construction site, ground support pads are installed and their position and stability are checked.

[0046] Using a large crane, the integral, non-removable positioning template 1 was lifted to the designed position above the pump station inlet and slowly lowered. First, the bottom of the fixed adjusting rod 4 was fixed to the ground embedded parts using fixing nuts 9, and the top was connected to the bottom of the template, with the middle connected by an adjuster 6. Next, the fixed adjusting tie rod 5 was passed through the corresponding perforations of the perforated back brace 2 and the non-removable positioning template 1, with the other end fixed to the fixing steel plate 7, and the middle connected by the adjuster 6. Construction personnel fine-tuned the template from up and down, left and right, and in the rotation direction by rotating the adjuster 6, using measuring instruments such as a total station to monitor in real time and ensure that the template positioning deviation was within the allowable range. Finally, fixing steel wires 10.1 were installed and diagonally braced between the side of the template and the surrounding solid structure to enhance the horizontal stability of the template.

[0047] After completing the formwork positioning and support system installation, concrete pouring begins. A layered pouring method is adopted, with each layer controlled to a thickness of 30-50 cm. An immersion vibrator is used for compaction to ensure uniform and dense concrete, avoiding under-vibration or over-vibration. During the pouring process, designated personnel observe changes in the formwork and support system; if any abnormalities are detected, pouring is immediately stopped and addressed.

[0048] After the concrete is poured and cured to the design strength, the fixed adjusting pole 4 and fixed adjusting tie rod 5 are removed. The construction workers rotate the adjuster 6 in one direction to separate the fixed adjusting tie rod 5 from the formwork. Then, the fixed adjusting tie rod 5 and fixed adjusting pole 4 are removed in sequence. For the remaining holes, the beveled sealing screws 11 are used to seal them to ensure that the seal is tight and that the sealed surface is flush with the surface of the formwork so as not to affect the flow of water.

[0049] The non-removable positioning formwork 1 combines high strength and deformation resistance, ensuring that the formwork does not undergo plastic deformation under the lateral pressure of concrete. The perforated back rib 2 is made of welded flat steel, and holes are opened on the surface of the non-removable positioning formwork 1 to precisely match the tie rod 5. This solves the problem of traditional split formwork being prone to deformation due to insufficient material strength, leading to dimensional deviations in concrete molding.

[0050] The fixed adjusting pole 4 is anchored to the embedded part at the bottom by the fixing nut 9, and the top is threaded to the fixing thread 8 of the template, forming a rigid support system with a vertical bearing capacity ≥10t. The adjuster 6 is a two-way threaded sleeve with a thread pitch of 5mm on both sides, achieving a 10mm stroke adjustment per rotation. With real-time monitoring by a total station, the positioning accuracy reaches ±1mm. The Φ16mm fixing steel wire is inclined at 30°-60° and connected to the side of the template through a steel pad, with an overturning resistance coefficient ≥2.0, ensuring horizontal stability. Traditional template support systems rely on manual experience for adjustment, which is prone to problems such as unstable support and large positioning deviations. This solution achieves rapid and accurate positioning through the mechanical adjuster 6 and quantified inclined parameters.

[0051] The regulator 6 is designed with a one-way threaded lock; rotating it counterclockwise releases the pull rod 5, preventing misoperation that could loosen the structure. The taper of the beveled sealing screw 11 is flush with the water-facing surface of the template. With the use of thread-locking adhesive and a water-swellable rubber ring, the seal is leak-free after a water pressure test, and the surface flatness error is ≤0.5mm.

[0052] This solution addresses the problems of traditional formwork removal damaging concrete and inadequate sealing of holes leading to water seepage. Through a non-removable design and intelligent sealing, structural integrity is improved, and maintenance costs are reduced. Tests show that the formwork positioning accuracy error is ≤1mm, and the sealed holes achieve a P8 impermeability rating.

[0053] The non-removable positioning template 1 is made of high-quality alloy steel plate, 10mm ± 2mm thick, with the water-facing surface polished to Ra ≤ 0.8μm. The back surface is welded with perforated back ribs 2, which employ a flat steel frame structure with their axis forming a 90° angle with the template surface. The fixed adjusting rod 4 is a telescopic sleeve structure, anchored at the bottom to a C30 concrete embedded part via a fixing nut 9, and threaded at the top to a fixing thread 8 at the bottom of the template. The adjuster 6 is a bidirectional threaded sleeve with a 5mm pitch on both the positive and negative thread sections, allowing for ±50mm adjustment of the rod stroke through rotation. During use, the non-removable positioning template 1 is permanently retained as a structural layer, the support system provides stability during construction, and the sealing system ensures long-term durability. These three elements work together to optimize performance throughout the entire lifecycle. Application in a pumping station project shows a 40% reduction in construction time and a 25% reduction in overall cost; the formed structure, after 3D scanning inspection, is dimensionally qualified, and water flow simulation shows reduced resistance.

[0054] This utility model systematically solves the defects of traditional template technology through structural innovation (perforated back rib + bidirectional adjuster), and achieves the three core goals of efficient construction, high-precision molding and long-term durability of pump station projects, which has important engineering promotion value.

[0055] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "sliding," "rotating," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to welded connections, bolted connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A modular, non-removable positioning template for the inlet and guide cone of a pumping station, comprising a template body, a support system, and an integrated positioning system, characterized in that... The template body is composed of a non-removable positioning template (1), a perforated back rib (2) and an anchor bar (3). The back surface of the non-removable positioning template (1) is welded and fixed to the perforated back rib (2). The anchor bar (3) is welded to the back of the non-removable positioning template (1) and extends to the concrete pouring area. The support system includes a fixed adjusting pole (4), a fixed adjusting tie rod (5), and an adjuster (6). The fixed adjusting pole (4) is vertically connected to the ground steel pad and the fixing thread (8) at the bottom of the template. One end of the fixed adjusting tie rod (5) is inserted into the through hole on the non-removable positioning template (1) through a fixing nut (9), and the other end is connected to the fixed steel plate (7). The middle is connected by the adjuster (6). The integrated positioning system includes an integrated locator (10), which is installed at the center of the upper inner edge of the template and is used to correct the position of the template in real time during hoisting. The non-removable positioning template (1) is retained in the concrete structure after construction. The holes of the fixed adjustment pole (4) and fixed adjustment tie rod (5) after removal are sealed by the inclined sealing screw (11).

2. The integral, non-removable positioning template for the pump station inlet and guide cone as described in claim 1, characterized in that, The perforated back rib (2) is a longitudinally arranged flat steel frame with a longitudinal spacing of 200-400mm. The flat steel surface is uniformly provided with round holes with a diameter of 20-30mm.

3. The integral, non-removable positioning template for the pump station inlet and guide cone as described in claim 1, characterized in that, The anchor bar (3) is a straight threaded steel bar, which is welded to the surface of the non-removable positioning template (1) in a plum blossom pattern, and the length of the extension section anchored into the concrete is 150-200mm.

4. The integral, non-removable positioning template for the pump station inlet and guide cone as described in claim 1, characterized in that, The adjuster (6) is a bidirectional threaded sleeve structure, including a positive thread section and a negative thread section. The template installation accuracy can be finely adjusted by rotating the adjuster (6).

5. The integral, non-removable positioning template for the pump station inlet and guide cone as described in claim 1, characterized in that, The fixed steel plate (7) is a steel plate with a pre-embedded nut. The pre-embedded screw is connected to the fixed adjustment rod (5) by a thread. The size of the steel plate is not less than 200mm×200mm×10mm.

6. The integral, non-removable positioning template for the pump station inlet and guide cone as described in claim 1, characterized in that, The integrated positioner (10) includes a steel wire (10.1) and a quick leveling mechanism (10.2). The quick leveling mechanism (10.2) integrates an tilt sensor and has a positioning accuracy error of ≤2mm.

7. The integral, non-removable positioning template for the pump station inlet and guide cone as described in claim 1, characterized in that, The fixing thread (8) is an internal threaded sleeve, which is welded inside the template and fixed to the threaded rod at the top of the fixing adjustment rod (4) by screwing.

8. The integral, non-removable positioning template for the pump station inlet and guide cone as described in claim 1, characterized in that, The inclined sealing screw (11) is a stainless steel tapered bolt, whose taper matches the chamfer of the inner wall of the hole, and the surface is flush with the template surface after sealing.

9. The integral, non-removable positioning template for the pump station inlet and guide cone according to any one of claims 1-8, characterized in that, The surface of the non-removable positioning template (1) is coated with an epoxy resin anti-rust coating with a coating thickness of not less than 240μm.

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