A prefabricated component assembling device for a power plant trestle

Abstract

This invention discloses a prefabricated component assembly device for power plant trestle bridges, used for supporting and assembling the trestle bridge body. It includes: a support unit comprising a vertically installed support column on a pile foundation; a corbel unit comprising a corbel assembly fitted onto the outside of the support column and a limiting component for restricting the position of the corbel assembly; the corbel assembly includes an integrally formed sleeve block, pad block, and extension plate; the limiting component includes a limiting rod, a telescopic block, a limiting block, and a tightening spring. By assembling prefabricated components, the long construction cycle, high pouring difficulty, and numerous safety hazards of traditional cast-in-place corbels are avoided. The design of the limiting component further improves the reliability and stability of corbel installation. The entire installation process eliminates the need for on-site pouring, resulting in a short construction cycle and high efficiency, making it suitable for the rapid assembly construction of power plant trestle bridges.

Description

Technical Field

[0001] This invention relates to the field of prefabricated component assembly technology for power plant trestle bridges, specifically to a prefabricated component assembly device for power plant trestle bridges. Background Technology

[0002] In the construction of thermal power plants, trestle bridges serve as connecting channels between key facilities in the coal conveying system. Their structural stability and construction efficiency directly affect the overall construction cycle and operational reliability of the power plant. Trestle bridges are usually assembled from multiple precast concrete or steel structure sections and connected to the beams, columns, or supports of the plant building through corbel structures to bear the load of the trestle bridge and transfer it to the main structure. Currently, the cantilever structure of power plant trestle bridges is generally constructed by on-site concrete pouring. The specific process is as follows: steel bars or steel plates are pre-embedded in the corresponding positions of the main structure, formwork is erected on-site, concrete is poured, and after it has cured to the design strength, the trestle bridge section is hoisted and fixed. This traditional construction method requires a long curing time after the concrete is poured, resulting in a long construction cycle. In addition, the high-altitude formwork and pouring operations are difficult and pose many safety hazards. Furthermore, the on-site wet work brings additional burdens to the construction environment and personnel operations, and the process is complicated. Therefore, there is an urgent need to develop a prefabricated component assembly device suitable for power plant trestle bridges, so as to achieve rapid, accurate and reliable on-site installation of steel structure brackets, thereby improving construction efficiency, ensuring the quality of bracket connections, and promoting the prefabrication upgrade of power plant trestle bridge projects.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a prefabricated component assembly device for power plant trestle bridges, in order to solve the problems mentioned in the background art, which are that the construction of power plant trestle bridges in the prior art uses the cast-in-place corbel method, resulting in long construction period, high pouring difficulty, and many safety hazards.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A prefabricated component assembly device for a thermal power plant trestle, used for supporting and assembling the trestle body, includes: Support units, including columns vertically installed on the pile foundation; The corbel unit includes a corbel assembly sleeved on the outside of the support column and a limiting assembly for limiting the position of the corbel assembly; The bracket assembly includes an integrally formed sleeve block, pad block, and extension plate; The limiting assembly includes a limiting rod, a telescopic block, a limiting block, and a tightening spring.

[0006] Furthermore, the support unit also includes a flange and locking bolts, the flange fixing the support to the pile foundation by means of the locking bolts.

[0007] Furthermore, the sleeve block has a through groove inside for fitting onto the outside of the support column; a guide opening is provided on one side of the upper part of the sleeve block for guiding the trestle body during the lowering process.

[0008] Furthermore, the pad block is fixedly connected to the side of the sleeve block located on the main body of the trestle, and is used to support the main body of the trestle.

[0009] Furthermore, the extension plate is fixedly connected to both sides of the pad and located in the extension direction of the trestle body, in order to increase the contact area between the trestle body and the pad.

[0010] Furthermore, the interior of the support column is provided with a slot for engaging the two ends of the limiting rod.

[0011] Furthermore, a telescopic block is slidably inserted into the lower part of the limiting rod near both ends, and the lower end of the telescopic block is provided with an inclined surface at the corner of the support column. The telescopic block can extend downward under the elastic force of the top spring to lock the limiting rod.

[0012] Furthermore, the limiting rod has an internal recess for accommodating the limiting block; The limiting block is fixedly connected to the upper end of the telescopic block; The tightening spring is fixedly connected to the upper end of the limiting block and located inside the retraction groove, and is used to tighten the limiting block downward.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention avoids the problems of long construction cycle, high pouring difficulty, and many safety hazards of traditional cast-in-place corbels by assembling prefabricated components. The design of the limiting component further improves the reliability and stability of corbel installation. The entire installation process does not require on-site pouring, has a short construction cycle, and is highly efficient. It is suitable for the rapid assembly construction of power plant trestle bridges. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a diagram showing the fit between the support unit and the corbel unit of the present invention; Figure 3 For the present invention in Figure 2 Enlarged view of point A in the middle; Figure 4 This is a diagram showing the fit between the bracket assembly and the limiting assembly of the present invention. Figure 5This is a diagram showing the fit between the limiting rod and the support column of the present invention. Figure 6 This is a diagram showing the cooperation relationship between the telescopic block and the limiting rod of the present invention.

[0015] Reference numerals: 100, Ground; 101, Pile foundation; 102, Trestle body; 1, Support unit; 11, Flange; 12, Locking bolt; 13, Column; 131, Slot; 2, Bracket unit; 21, Bracket assembly; 211, Sleeve block; 2111, Through slot; 2112, Guide port; 212, Pad block; 213, Extension plate; 22, Limiting assembly; 221, Limiting rod; 2211, Retraction slot; 222, Telescopic block; 2221, Inclined surface; 223, Limiting block; 224, Tightening spring. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-6 The present invention provides a technical solution: A prefabricated component assembly device for a thermal power plant trestle, used for supporting and assembling the trestle body 102, includes: Support unit 1 includes a column 13 vertically installed on the pile foundation 101; The bracket unit 2 includes a bracket assembly 21 sleeved on the outside of the support column 13 and a limiting assembly 22 for limiting the position of the bracket assembly 21; The bracket assembly 21 includes an integrally formed sleeve block 211, pad block 212 and extension plate 213; The limiting component 22 includes a limiting rod 221, a telescopic block 222, a limiting block 223, and a tightening spring 224.

[0018] As an improvement, such as Figure 1-3 As shown, the support unit 1 also includes a flange 11 and a locking bolt 12, wherein the flange 11 fixes the support column 13 to the pile foundation 101 by means of the locking bolt 12.

[0019] It should be noted that the flange 11 fixes the support column 13 to the pre-cast pile foundation 101 by locking bolts 12, ensuring the stability of the support column 13.

[0020] Furthermore, such as Figure 4As shown, the sleeve block 211 has a through groove 2111 inside, which is used to fit on the outside of the support column 13; the upper side of the sleeve block 211 has a guide opening 2112, which is used to guide the trestle body 102 during the lowering process.

[0021] Furthermore, the pad block 212 is fixedly connected to the sleeve block 211 on one side of the trestle body 102, and is used to support the trestle body 102.

[0022] Among them, such as Figure 3 As shown, the extension plate 213 is fixedly connected to both sides of the pad 212 and located in the extension direction of the trestle body 102, which is used to increase the contact area between the trestle body 102 and the pad 212.

[0023] As an improvement, the inside of the support column 13 is provided with a through slot 131 for engaging the two ends of the limiting rod 221.

[0024] Furthermore, such as Figure 6 As shown, a telescopic block 222 is slidably inserted into the lower part of the limiting rod 221 near both ends, and an inclined surface 2221 is provided at the lower end of the telescopic block 222 relative to the corner of the support column 13. The telescopic block 222 can extend downward under the elastic force of the top spring 224 to lock the limiting rod 221.

[0025] Furthermore, the limiting rod 221 is provided with a retraction groove 2211 for accommodating the limiting block 223; The limiting block 223 is fixedly connected to the upper end of the telescopic block 222; The tightening spring 224 is fixedly connected to the upper end of the limiting block 223 and located inside the retraction groove 2211, and is used to tighten the limiting block 223 downward.

[0026] It should be noted that: in the specific implementation process of this invention, such as Figure 1-6 As shown, the pile foundation 101 is formed by casting on the ground 100 in advance. The sleeve block 211 is fitted onto the outside of the support column 13 through the through groove 2111 opened inside, with the guide opening 2112 facing upward. Then, the two ends of the limiting rod 221 are respectively inserted into the slots 131 reserved in the two sets of support columns 13. The limiting rod 221 can support and limit the lower end of the sleeve block 221. Finally, the support columns 13 are vertically installed on the upper end of the pile foundation 101 in sequence with the flange 11 and the locking bolt 12, thus completing the installation of the corbel. The entire installation process does not require the corbel to be cast in place, the construction cycle is short and the construction efficiency is high. like Figure 1-3As shown, the pad 212 in this invention is fixedly connected to one side of the sleeve block 211, and the extension plate 213, which is used to increase the contact area between the trestle body 102 and the pad 212, is fixedly connected to both sides of the pad 212 and located in the extension direction of the trestle body 102, so as to avoid excessive stress concentration between the trestle body 102 and the pad 212. After the bracket is installed, multiple sections of the trestle body 102 are hoisted onto the upper end of the pad block 212 by a crane. Then, the trestle body 102 and the pad block 212 are welded together to complete the installation of the trestle body 102. like Figure 4-6 As shown, in this invention, the lower part of the limiting rod 221 is slidably inserted with a telescopic block 222 near both ends. The lower end of the telescopic block 222 and the corner on the side opposite to the support column 13 are provided with an inclined surface 2221. The inclined surface 2221 can guide the limiting rod 221 and pass through the slot 131. After the telescopic rod 222 passes through the slot 131, the telescopic block 222 extends downward under the elastic force of the top spring 224, so that the telescopic block 221 can lock and limit the limiting rod 221, preventing the limiting rod 221 from separating from the support column 13, and further improving the reliability of the bracket installation.

[0027] The installation process of this invention is as follows: Step 1: Concrete piles 101 sequentially on the ground surface 100; Step 2: Fit the sleeve 211 onto the outside of the support column 13 through the through slot 2111, with the guide opening 2112 facing upward; Step 3: Insert both ends of the limiting rod 221 into the slots 131 of the support column 13 to support and limit the sleeve block 211; Step 4: Install the support column 13 vertically onto the pile foundation 101 using flange 11 and locking bolts 12; Step 5: After the brackets are installed, use a crane to lift the multiple sections of the trestle body 102 to the top of the pad block 212 in sequence, and weld the trestle body 102 to the pad block 212 for fixation.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated component assembly device for a thermal power plant trestle, used for supporting and assembling the trestle body (102), characterized in that, include: The support unit (1) includes a column (13) mounted on a vertically installed pile foundation (101). The corbel unit (2) includes a corbel assembly (21) sleeved on the outside of the support column (13) and a limiting assembly (22) for limiting the position of the corbel assembly (21). The bracket assembly (21) includes an integrally formed sleeve block (211), pad block (212), and extension plate (213). The limiting component (22) includes a limiting rod (221), a telescopic block (222), a limiting block (223), and a tightening spring (224).

2. The prefabricated component assembly device for a thermal power plant trestle according to claim 1, characterized in that: The support unit (1) also includes a flange (11) and a locking bolt (12), wherein the flange (11) fixes the support column (13) to the pile foundation (101) by means of the locking bolt (12).

3. The prefabricated component assembly device for a thermal power plant trestle according to claim 1, characterized in that: The sleeve (211) has a through groove (2111) inside, which is used to fit on the outside of the support (13); the upper side of the sleeve (211) has a guide (2112) for guiding the trestle body (102) during the lowering process.

4. The prefabricated component assembly device for a thermal power plant trestle according to claim 1, characterized in that: The pad (212) is fixedly connected to the sleeve (211) on one side of the trestle body (102) and is used to support the trestle body (102).

5. The prefabricated component assembly device for a thermal power plant trestle according to claim 4, characterized in that: The extension plate (213) is fixedly connected to both sides of the pad (212) and located in the extension direction of the trestle body (102) to increase the contact area between the trestle body (102) and the pad (212).

6. The prefabricated component assembly device for a thermal power plant trestle according to claim 1, characterized in that: The inside of the support column (13) is provided with a slot (131) for engaging the two ends of the limiting rod (221).

7. The prefabricated component assembly device for a thermal power plant trestle according to claim 1, characterized in that: The lower part of the limiting rod (221) is slidably inserted with a telescopic block (222) near both ends, and the lower end of the telescopic block (222) is provided with an inclined surface (2221) at the corner of the support column (13). The telescopic block (222) can extend downward under the elastic force of the top spring (224) to lock the limiting rod (221).

8. The prefabricated component assembly device for a thermal power plant trestle according to claim 7, characterized in that: The limiting rod (221) has an internal recess (2211) for accommodating the limiting block (223). The limiting block (223) is fixedly connected to the upper end of the telescopic block (222); The tightening spring (224) is fixedly connected to the upper end of the limiting block (223) and located inside the retraction groove (2211) to tighten the limiting block (223) downward.

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