Cp iii sleeve embedded auxiliary frame

Abstract

This utility model relates to the field of surveying and construction technology, specifically to an auxiliary frame for pre-embedding CPⅢ sleeves. It includes a crossbeam with support blocks at both ends, forming a U-shape with the crossbeam and the two support blocks. Each support block has a limiting screw hole with a limiting screw rod. An installation rod is located in the middle of the crossbeam for connecting the CPⅢ sleeve. This utility model achieves precise vertical positioning and fixing of the sleeve in concrete by directly connecting and guiding the CPⅢ sleeve to the installation rod in the middle of the crossbeam. This completely avoids the sleeve position deviation caused by traditional secondary drilling installation, ensuring the embedding accuracy of the CPⅢ point.

Description

Technical Field

[0001] This utility model relates to the field of surveying and construction technology, and in particular to the CPⅢ sleeve pre-embedded auxiliary frame. Background Technology

[0002] In the construction of high-speed railways, intercity railways, and other track engineering projects, CPⅢ (track control network) is an important measurement benchmark for track fine-tuning and operation and maintenance. The quality of CPⅢ point installation directly affects the accuracy and reliability of subsequent track laying, line adjustment, and long-term monitoring. The traditional method of CPⅢ pre-embedding usually involves drilling holes in the top of the concrete retaining wall after it has been poured, and then using anchoring adhesive to fix the CPⅢ sleeves into the holes.

[0003] This traditional method has the following significant drawbacks: Positioning accuracy is difficult to guarantee: manual drilling is prone to positional deviations, which leads to increased coordinate errors of CPⅢ points and affects the accuracy of the overall measurement network; Low construction efficiency: It requires dedicated personnel to operate equipment such as generators and electric drills, and the procedures are cumbersome and time-consuming. Structural damage risk: During drilling, internal reinforcing bars may be encountered, which may not only damage the structure but also affect the overall strength and durability of the retaining wall. Poor appearance quality: Drilled holes often require later repairs, affecting the neatness and aesthetics of the wall appearance; High cost: The cost of rebar adhesive, special equipment and labor are all high, making it less economical.

[0004] Therefore, a technical solution is needed to address the above problems, improve the accuracy, stability, and construction efficiency of CPⅢ sleeve installation, and reduce subsequent maintenance costs. Utility Model Content

[0005] The purpose of this utility model is to overcome the problems of low positioning accuracy, poor construction efficiency, easy damage to the structure, poor appearance quality and high cost in the installation of CPⅢ sleeves, and to provide an auxiliary frame for CPⅢ sleeve pre-embedding.

[0006] This utility model provides a CPⅢ sleeve pre-embedded auxiliary frame, including a crossbeam, with support blocks at both ends of the crossbeam, the crossbeam and the two support blocks forming a gate shape, the support blocks having limiting screw holes, the limiting screw holes being equipped with limiting screws, and an installation rod in the middle of the crossbeam for connecting the CPⅢ sleeve.

[0007] In use, the CPⅢ sleeve pre-embedded auxiliary frame of this utility model is connected to the lower end of the mounting rod, and the crossbeam is placed across the casting template so that the support blocks at both ends are located on the outside of the casting template; the limiting screw is rotated so that its end is pressed against the outside of the template, thereby fixing the entire auxiliary frame; guided by the mounting rod, the CPⅢ sleeve is accurately positioned to the design position; after the concrete has solidified, the limiting screw is loosened and the auxiliary frame is removed to complete the CPⅢ sleeve pre-embedding.

[0008] Preferably, the end of the limiting screw is provided with a butterfly handle.

[0009] The butterfly handle allows construction workers to manually tighten or loosen the limit screw, enabling quick clamping and disassembly without the need for additional tools, thus improving ease of operation and work efficiency.

[0010] Preferably, the crossbeam has a mounting screw hole in the middle, and the mounting rod is threaded into the mounting screw hole.

[0011] The extension length can be finely adjusted by rotating the installation rod, thereby precisely controlling the pre-embedded height of the CPⅢ sleeve, adapting to the requirements of different construction elevations, and ensuring the accuracy of the plane and elevation position of the pre-embedded point.

[0012] Preferably, the upper part of the mounting rod is provided with a turntable.

[0013] The turntable increases the contact area with the hand, making it easier and more comfortable for construction workers to fine-tune the height of the rotating installation rod, further improving the convenience and precision of the adjustment.

[0014] Preferably, the crossbeam is provided with two limiting blocks, and the limiting blocks and the support blocks correspond one-to-one to form limiting slots.

[0015] The support block and the limiting block are located on both sides of the casting template. Working together with the limiting screw, they can quickly and accurately position and constrain the auxiliary frame, preventing it from moving horizontally in subsequent operations and ensuring the accuracy of the sleeve's pre-embedded position.

[0016] Preferably, the limiting block includes a connecting part and a limiting part, which are integrally formed into an L-shape.

[0017] The added connecting part is used for welding with the crossbeam, which can increase the contact area between the limiting block and the crossbeam and improve the connection stability.

[0018] Preferably, a spirit level is provided at the top of the crossbeam.

[0019] The spirit level can be used to quickly level the crossbeam and ensure that the mounting rod is in a vertical position, thereby ensuring the verticality of the pre-embedded CPⅢ sleeve, which is one of the key factors to ensure the accuracy of the measurement point.

[0020] Preferably, the crossbeam is provided with an adjustment screw hole, the axis of which is parallel to the axis of the mounting rod, and a height adjustment bolt is provided in the adjustment screw hole.

[0021] The horizontality of the crossbeam can be precisely adjusted by rotating the height adjustment bolt. When used in conjunction with the spirit level, it can compensate for installation errors caused by uneven support surfaces, ensuring that the installation rod always maintains a strictly plumb state. This greatly improves the vertical accuracy of the CPⅢ sleeve installation and provides a more reliable quality assurance for measurement control points.

[0022] Preferably, there are two adjusting screw holes, which are respectively disposed in the two limiting slots.

[0023] Two height adjustment bolts are arranged on both sides of the mounting rod, which can independently and precisely adjust the height of both ends of the crossbeam. This allows the auxiliary frame to quickly reach a precise level even on uneven support surfaces, significantly improving the equipment's adaptability to complex construction environments and further ensuring the final quality of the sleeve pre-embedding.

[0024] Preferably, the crossbeam, support block, and limiting block are all structural components made of aluminum alloy.

[0025] The aluminum alloy material ensures that the auxiliary frame has sufficient structural strength and rigidity, while being lightweight, easy to handle and carry, and suitable for frequent movement on the construction site, reducing the labor intensity of workers.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a CPⅢ sleeve pre-embedding auxiliary frame. By setting a portal frame structure (composed of a crossbeam and two end support blocks) and cooperating with a screw-able limiting screw, the auxiliary frame can be quickly and firmly clamped and fixed on the casting template, providing a stable reference for subsequent sleeve pre-embedding. 2. This utility model provides an auxiliary frame for pre-embedding CPⅢ sleeves. The CPⅢ sleeve is directly connected to and guided by an installation rod set in the middle of the crossbeam. This enables precise vertical positioning and fixing of the sleeve in the concrete, completely avoiding the sleeve position deviation caused by traditional secondary drilling installation, and ensuring the embedding accuracy of the CPⅢ point. 3. This utility model provides an auxiliary frame for pre-embedded CPⅢ sleeves. Through a one-time casting pre-embedding method, the CPⅢ sleeves can be formed synchronously with the concrete structure, which solves the risk of damage to the structure caused by traditional drilling methods and protects the integrity and durability of the concrete structure. 4. This utility model provides a CPⅢ sleeve pre-embedded auxiliary frame. Through its detachable and reusable design, the auxiliary frame can be reused multiple times, which solves the problem of high costs of rebar adhesive materials, special equipment and labor in traditional methods, and reduces construction costs. 5. This utility model provides an auxiliary frame for pre-embedding CPⅢ sleeves. Through precise positioning and one-time molding process, it can achieve standardized installation of CPⅢ sleeves, solve the problem of the impact of later repairs on the appearance of the wall in traditional methods, and ensure the appearance quality of concrete structures. 6. This utility model provides a CPⅢ sleeve pre-embedded auxiliary frame, which can complete the pre-embedded work without power equipment and professional drilling tools through a simple mechanical fixing method, solving the problem of dependence on special equipment in traditional methods and improving the convenience and adaptability of construction. Attached Figure Description

[0027] Figure 1 This is the front view of the CPⅢ sleeve pre-embedded auxiliary frame of this utility model; Figure 2 This is a cross-sectional structural diagram of the CPⅢ sleeve pre-embedded auxiliary frame of this utility model; Figure 3 This is a diagram showing the usage status of the CPⅢ sleeve pre-embedded auxiliary frame of this utility model; Marked in the image: 1-Crossbeam, 11-Mounting screw hole, 12-Adjusting screw hole, 2-Support block, 21-Limit screw hole, 3-Limit screw rod, 31-Butterfly handle, 4-Mounting rod, 41-Turntable, 5-Limit block, 51-Connecting part, 52-Limiting part, 6-Level bubble, 7-Height adjusting bolt, 8-CPⅢ sleeve. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0029] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0031] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0032] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0033] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0034] Example 1 like Figure 1 , Figure 2 and Figure 3 As shown, the CPⅢ sleeve pre-embedded auxiliary frame includes a crossbeam 1, with support blocks 2 at both ends of the crossbeam 1. The crossbeam 1 and the two support blocks 2 form a gate shape. The support blocks 2 are provided with limiting screw holes 21, and the limiting screw holes 21 are equipped with limiting screws 3. The crossbeam 1 is provided with an installation rod 4 in the middle, and the installation rod 4 is used to connect the CPⅢ sleeve.

[0035] In one or more implementations, such as Figure 2As shown, a mounting screw hole 11 can be set in the middle of the crossbeam 1. The mounting rod 4 is threaded into the mounting screw hole 11. The embedment height of the CPⅢ sleeve can be adjusted by rotating the mounting screw to adapt to the requirements of different construction elevations and ensure the accuracy of the plane and elevation position of the pre-embedded point.

[0036] In one or more implementations, such as Figure 1 As shown, two limiting blocks 5 can be set on the crossbeam 1. The limiting blocks 5 and the support blocks 2 correspond one-to-one to form limiting slots. The support blocks 2 and the limiting blocks 5 are located on both sides of the casting template. They work together with the limiting screws 3 to quickly and accurately position and constrain the auxiliary frame, preventing it from moving horizontally in subsequent operations and ensuring the accuracy of the sleeve pre-embedded position.

[0037] In optional implementations, such as Figure 2 As shown, the limiting block 5 includes a connecting part 51 and a limiting part 52. The connecting part 51 and the limiting part 52 are integrally formed into an L-shape. The added connecting part 51 is used to weld with the crossbeam 1, which can increase the contact area between the limiting block 5 and the crossbeam 1 and improve the connection stability.

[0038] In one or more implementations, such as Figure 1 As shown, a spirit level 6 and a height adjustment bolt 7 for adjusting the horizontal level of the crossbar can be added to the crossbar. The spirit level 6 can be used to quickly level the crossbeam 1 and ensure that the mounting rod 4 is in a vertical state, thereby ensuring the verticality of the pre-embedded CPⅢ sleeve.

[0039] Bubble level 6: Can be set at the top of beam 1 for easy observation by the operator.

[0040] Height adjusting bolts 7: There are two bolts, one on each side of the mounting rod 4. The two sides of the crossbeam are provided with adjusting screw holes 12. The axis of the adjusting screw holes 12 is parallel to the axis of the mounting rod 4, so that the height adjusting bolts 7 are located in the two limit slots. By rotating the height adjusting bolts 7, the levelness of the crossbeam 1 can be precisely adjusted. When used with the level bubble 6, it can compensate for the installation error caused by the unevenness of the support surface, ensuring that the mounting rod 4 always maintains a strict plumb state, thereby greatly improving the vertical accuracy of the CPⅢ sleeve installation and providing a more reliable quality guarantee for the measurement control points.

[0041] In one or more implementations, such as Figure 1 As shown, a turntable 41 can be installed on the top of the mounting rod 4, and butterfly handles 31 can be installed at the ends of the limiting screw 3 and the height adjusting bolt 7, so as to facilitate the rotation of these components without the need for external tools, making the operation simple.

[0042] In one or more embodiments, the crossbeam 1, the support block 2, and the limiting block 5 can all be made of aluminum alloy structural components. The crossbeam 1 and the support block 2 can be made of aluminum alloy hollow square tubes. The aluminum alloy material ensures that the auxiliary frame has sufficient structural strength and rigidity, while being lightweight, easy to handle and carry, and suitable for frequent movement and use on the construction site, thus reducing the labor intensity of workers.

[0043] Example 2 A method for pre-embedding sleeves, using the CPⅢ sleeve pre-embedding auxiliary frame as described in Example 1, such as... Figure 1 , Figure 2 and Figure 3 As shown, it includes the following steps: S1: Construction Preparation and Positioning: After the reinforcement of the concrete retaining wall is tied and before the formwork is erected, according to the design drawings, use a total station and other surveying instruments to accurately lay out the plane position of all CPⅢ pre-embedded points on the reinforcement cage, and make a cross center mark with a conspicuous marker pen. At the same time, calculate the pre-embedded elevation value of the top surface of each CPⅢ sleeve according to the track design elevation.

[0044] S2: Auxiliary frame installation and initial fixing: Install and reinforce the concrete side formwork, then place the CPⅢ sleeve pre-embedded auxiliary frame across the pouring formwork of the protective wall, so that the limiting slots formed by the support blocks 2 and the limiting blocks 5 at both ends of the crossbeam 1 are locked in the inner and outer sides of the top of the formwork. Reliably connect the upper end of the CPⅢ sleeve to the lower end of the installation rod 4 through threads or other means, manually pre-tighten the limiting screws 3 on both sides, so that the butterfly handle 31 is turned to the state of initially clamping the formwork, so that the auxiliary frame is initially fixed.

[0045] S3: Fine leveling and fine adjustment positioning: Observe the level bubble 6 at the top of the crossbeam 1. If the level bubble 6 is biased to one side, tighten the height adjustment bolt 7 on that side or lower the height adjustment bolt 7 on the opposite side until the level bubble 6 is precisely centered. At this time, the crossbeam 1 is in a strictly horizontal state, and the mounting rod 4 connected to it by threads is in a precisely vertical state. This step ensures the verticality of the CPⅢ sleeve 8.

[0046] S4: Final Fixing and Elevation Fine-tuning: After the auxiliary frame is leveled, tighten the butterfly handles 31 at the ends of the limit screws 3 on both sides so that the ends of the limit screws 3 press firmly against the outside of the template, and firmly lock the entire auxiliary frame on the template to prevent it from shifting during concrete pouring. Then, rotate the turntable 41 on the upper part of the installation rod 4. Through the threaded engagement between the installation rod 4 and the installation screw hole 11 on the crossbeam 1, finely adjust the extension length of the installation rod 4, thereby driving the CPⅢ sleeve to rise and fall, so that its top surface elevation is completely consistent with the pre-calculated design elevation value. Use a level to verify the elevation.

[0047] S5: Concrete pouring and curing: After confirming that the plane position, verticality and elevation of the CPⅢ sleeve meet the design requirements, the concrete pouring operation of the protective wall shall be carried out. During the pouring process, the vibrator should be prevented from directly touching the auxiliary frame and the CPⅢ sleeve to prevent them from shifting.

[0048] S6: Disassembly and Transfer: After the concrete has initially set and reached a certain strength, proceed in reverse order: first loosen and turn back the limit screws 3 on both sides, then loosen the height adjustment bolts 7 to remove them from the top surface of the template. The entire auxiliary frame can then be removed from the concrete structure. At this point, the CPⅢ sleeve has been precisely embedded in the concrete. Clean the cement slurry on the auxiliary frame, and it can be transferred to the next embedding point to repeat the above steps S2 to S6.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. CPⅢ sleeve (8) pre-embedded auxiliary frame, characterized in that, The device includes a crossbeam (1), with support blocks (2) at both ends. The crossbeam (1) and the two support blocks (2) form a gate shape. The support blocks (2) are provided with limiting screw holes (21), and the limiting screw holes (21) are equipped with limiting screws (3). The crossbeam (1) is provided with an installation rod (4) in the middle, which is used to connect the CPⅢ sleeve.

2. The CPⅢ sleeve pre-embedded auxiliary frame according to claim 1, characterized in that, The limiting screw (3) is provided with a butterfly handle (31) at its end.

3. The CPⅢ sleeve pre-embedded auxiliary frame according to claim 1, characterized in that, The crossbeam (1) has a mounting screw hole (11) in the middle, and the mounting rod (4) is threaded into the mounting screw hole (11).

4. The CPⅢ sleeve pre-embedded auxiliary frame according to claim 3, characterized in that, The mounting rod (4) has a turntable (41) on its upper part.

5. The CPⅢ sleeve pre-embedded auxiliary frame according to claim 1, characterized in that, The crossbeam (1) is provided with two limiting blocks (5), and the limiting blocks (5) and the support blocks (2) correspond one-to-one to form limiting slots.

6. The CPⅢ sleeve pre-embedded auxiliary frame according to claim 5, characterized in that, The limiting block (5) includes a connecting part (51) and a limiting part (52), which are integrally formed into an L-shape.

7. The CPⅢ sleeve pre-embedded auxiliary frame according to claim 5, characterized in that, The top of the crossbeam (1) is provided with a spirit level (6).

8. The CPⅢ sleeve pre-embedded auxiliary frame according to claim 7, characterized in that, The crossbeam (1) is provided with an adjustment screw hole (12), the axis of which is parallel to the axis of the mounting rod (4), and a height adjustment bolt (7) is provided in the adjustment screw hole (12).

9. The CPⅢ sleeve pre-embedded auxiliary frame according to claim 8, characterized in that, The number of the adjusting screw holes (12) is two, and they are respectively set in the two limiting slots.

10. The CPⅢ sleeve pre-embedded auxiliary frame according to any one of claims 5-9, characterized in that, The crossbeam (1), support block (2) and limiting block (5) are all aluminum alloy structural components.

Images