Temporary support for a double cross steel pipe concrete x column of an indirect cooling tower

Abstract

This invention discloses a temporary support for a double-crossing steel-concrete composite X-column in an indirect cooling tower, belonging to the field of construction technology for thermal power plants. The temporary support includes a support base, a support frame detachably connected to the top of the support base, an adjusting frame detachably connected to the top of the support frame, a support column movably connected to the top of the adjusting frame, and a fine-tuning component for adjusting the height of the support column installed within the adjusting frame. A snap-fit ​​connector is rotatably connected to the top of the support column, and the snap-fit ​​connector is detachably connected to the steel-concrete composite X-column. The support base and the ring beam seat of the steel-concrete composite X-column are also detachably connected by bolts and nuts. The temporary support of this invention has good stability and can be automatically clamped and disassembled with the X-shaped inclined support through the snap-fit ​​connector, making installation and disassembly convenient. Furthermore, its multi-segment detachable structure facilitates disassembly and relocation.

Description

Technical Field

[0001] This invention relates to the field of construction technology for thermal power plants, and in particular to a temporary support for a double-crossing steel-concrete X-column of an intercooling tower. Background Technology

[0002] With the widespread application of air-cooling technology in large-capacity generator sets in coal-rich and water-scarce areas of northern China, the scale and height of the supporting air-cooling towers are getting larger and larger. For example, a natural draft cooling tower has a height of 188.00m, a bottom diameter of 139.06m, a throat diameter of 89.30m, an outlet diameter of 93.30m, and an air inlet height of 29.60m.

[0003] Consequently, the construction period for natural draft cooling towers is becoming increasingly longer. In cold northern regions, due to climate limitations, there is often a winter shutdown period of 3 to 5 months. During this shutdown period, the low ambient temperature prevents the normal pouring and setting of concrete, necessitating a halt to construction and exacerbating the conflict between the construction period and the overall project schedule. Among the various stages of cooling tower construction, the annular foundation and tower cylinder have limited room for time-saving due to factors such as the initial strength of the concrete, the rate of skip-pour construction, and the speed of cylinder wall formwork changes.

[0004] To shorten the construction period of natural ventilation cooling towers, some power design units have adopted steel-concrete composite X-shaped inclined columns instead of traditional reinforced concrete X-shaped inclined columns. This approach offers advantages such as shorter construction cycles, simpler processing, better economic efficiency, and lower construction costs. Individual X-shaped inclined column steel pipe frames can be factory-produced, and the reinforced X-shaped inclined columns have high out-of-plane lateral stiffness and allow for a large slenderness ratio.

[0005] The construction steps for steel-concrete composite X-shaped inclined supports are roughly as follows: steel pipes, webs, and structural steel are manufactured in sections, then assembled into segmented steel ring beams and support steel pipes, and subsequently welded into a single X-shaped inclined support steel pipe frame; after hoisting and positioning the single X-shaped inclined support steel pipe frame, the segmented steel ring beams of the single X-shaped inclined support steel pipe frame are spliced ​​and assembled into a whole steel ring beam, and then concrete is poured into the steel pipes using bottom injection, one-time or segmented jacking methods, to obtain a ring-shaped X-shaped inclined support steel-concrete composite structure. In the industry, before concrete pouring, it is called a single X-shaped inclined support steel pipe frame; after concrete pouring, it is called an X-shaped inclined support.

[0006] Utility model patent CN215760755U discloses a temporary support structure for a steel-concrete X-shaped inclined column of a cooling tower. The structure includes a main temporary support component. The top of the main temporary support component is hinged to a tie plate fixed at the intersection of a single X-shaped inclined column steel pipe frame. Two connecting rods are fixedly connected to the main temporary support component and the two inclined columns below the hinge point. A bracket is fixedly connected to the lower end of the main temporary support component. The bracket is used to support two jacks symmetrically placed on the temporary support foundation to adjust the elevation of the single X-shaped inclined column steel pipe frame and the segmented steel ring beam, as well as their radius relative to the center of the cooling tower. The bottom of the main temporary support component has a connecting base plate for engaging with multiple bolts for tightening with nuts. Multiple steel shims are placed between the connecting base plate and the temporary support foundation. This temporary support structure has the function of adjusting the elevation of the single X-shaped inclined column steel pipe frame and the segmented steel ring beam, as well as their radius relative to the center of the cooling tower. The installation and disassembly process is stable, reliable, and safe. However, the following problems still exist in the construction process of the support structure: (1) There is no transverse support structure between the temporary support foundation of the support structure and the entire X-shaped inclined column, which is easy to cause the X-shaped inclined column to tilt and move in the horizontal direction, and the stability needs to be improved; (2) The support structure is mainly supported by the column steel pipe in the longitudinal direction, but the column steel pipe is an integral structure with a large height, so it is not easy to move, and the steel pipe structure is not strong enough for the overall weight of the X-shaped inclined column; (3) The top of the support structure is connected to the top of the X-shaped inclined column by connecting rods, connecting ears and bolts. Since the X-shaped inclined column is large in height, using bolts to connect its top makes it difficult for construction personnel to operate, and it is not convenient to install and disassemble. Summary of the Invention

[0007] To address the aforementioned problems, this invention aims to provide a temporary support for a double-crossing steel-concrete X-column of an indirect cooling tower. It offers good stability, facilitates installation and disassembly of the X-shaped inclined support, and features a multi-segment detachable structure for easy disassembly and relocation.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] A temporary support for a double-crossing steel-concrete composite X-column of an indirect cooling tower includes a support base, characterized in that: a support frame is detachably connected to the top of the support base, an adjustment frame is detachably connected to the top of the support frame, a support column is movably connected to the top of the adjustment frame, and a fine-tuning component for adjusting the height of the support column is installed inside the adjustment frame; a snap-fit ​​is rotatably connected to the top of the support column, and the snap-fit ​​is detachably connected to the steel-concrete composite X-column.

[0010] Furthermore, the support base includes a first base and a second base made of concrete. The second base is located at the top center of the first base, and a fixing frame is fixed inside the second base. The top of the fixing frame passes through the second base.

[0011] The inner sidewall of the fixed frame is provided with a ring of mounting plates, and the support frame is detachably installed on the top of the mounting plates; the first base is provided with a plurality of first connecting ribs for connecting with the ground, and the ends of the plurality of first connecting ribs all penetrate the first base.

[0012] Furthermore, the support frame includes a support frame mounting base and a support frame body. The support frame mounting base is placed on the mounting plate, and the four sides of the support frame mounting base are detachably connected to the four sides of the fixed frame by bolts.

[0013] The top of the support frame body is fixedly provided with an installation platform for connecting with the adjustment frame, and the top of the installation platform is fixedly provided with connecting plates on all four sides.

[0014] Furthermore, the adjustment frame includes an adjustment frame base and an adjustment frame body. The adjustment frame base is placed on the mounting platform, and the four sides of the adjustment frame base are detachably connected to the four connecting plates by bolts.

[0015] A reinforcing plate is fixed to the top of the base of the adjustment frame, a reinforcing column is fixed to the top of the reinforcing plate, a plurality of triangular plates are fixed to the outer periphery of the reinforcing column, an L-shaped plate is fixed to the top of the plurality of triangular plates, the top of the reinforcing column passes through the L-shaped plate, and the reinforcing plate, reinforcing column, triangular plates and L-shaped plate are all located in the body of the adjustment frame, and the fine adjustment component is installed on the L-shaped plate and the reinforcing column.

[0016] Furthermore, the fine-tuning assembly includes a fine-tuning motor mounted on the L-shaped plate, a drive gear connected to the output shaft of the fine-tuning motor, a fine-tuning screw rotatably connected to the top of the reinforcing column, a driven gear fixedly sleeved on the fine-tuning screw, and a drive gear connected to the driven gear via a drive chain; a fine-tuning rod is threaded onto the fine-tuning screw, the top of the fine-tuning rod is connected to the support column, and a limit ring is fixedly connected to the outer side of the fine-tuning rod near the bottom, two limit rods are symmetrically fixed on the limit ring, and two limit ears corresponding to the limit rods are symmetrically fixed on the top of the adjusting frame body, each limit ear having a limit groove, and the limit rods passing through the corresponding limit grooves.

[0017] Furthermore, a mounting plate is fixedly fitted on the top of the reinforcing column, and a mounting groove is formed on the top of the mounting plate. A tapered roller bearing is installed in the mounting groove, and a connecting shaft is rotatably mounted inside the tapered roller bearing. A plane bearing is also rotatably fitted on the outside of the connecting shaft, and the plane bearing is located above the tapered roller bearing. A first flange is also fixedly fitted on the connecting shaft, and the first flange is located above the plane bearing. The fine-tuning screw is coaxially fixed at the top center of the first flange. A second flange is also rotatably fitted on the reinforcing column, and the first flange and the second flange are connected by bolts.

[0018] Furthermore, a snap-fit ​​mounting base is fixedly provided at the top of the support column, and two rotatable connecting ears are fixedly provided at the top of the snap-fit ​​mounting base. A snap-fit ​​rotating shaft is fixedly provided between the two rotatable connecting ears, and the snap-fit ​​is rotatably sleeved on the snap-fit ​​rotating shaft.

[0019] Furthermore, the snap-fit ​​component includes a connecting block rotatably sleeved on the rotating shaft of the snap-fit ​​component. A first snap-fit ​​block and a second snap-fit ​​block are fixedly provided on the top of the connecting block. A snap-fit ​​rotating groove is provided on the side of the first snap-fit ​​block near the second snap-fit ​​block. A trapezoidal groove with a larger top and a smaller bottom is provided on the top of both the first snap-fit ​​block and the second snap-fit ​​block. A connecting column matching the trapezoidal groove is fixedly provided at the intersection of the steel pipe concrete X-column. The connecting column is movably snapped into the two trapezoidal grooves.

[0020] Furthermore, the bottom of the snap-fit ​​rotating groove is connected to a spring groove, a return spring is installed in the spring groove, a pressure rod is fixed to the top of the return spring, a connecting rod is vertically fixed to the pressure rod near the top, and a first connecting rod is movably connected to both ends of the connecting rod. An L-shaped connecting rod is movably connected to the end of each first connecting rod away from the connecting rod. A roller is installed at the end of the L-shaped connecting rod, and roller grooves matching the rollers are opened on both sides of the connecting column.

[0021] Furthermore, a second connecting rib is fixedly installed inside the second base. The second connecting rib is located below the fixed frame, and both ends of the second connecting rib penetrate the second base. Two reinforcing screws are detachably connected to the ring beam seat of the steel pipe concrete X-column. Each reinforcing screw is threaded with two reinforcing nuts. Each reinforcing nut penetrates the second connecting rib, and the two reinforcing nuts are located on both sides of the second connecting rib.

[0022] The beneficial effects of this invention are: compared with the prior art, the improvement of this invention lies in that...

[0023] 1. In the temporary support structure of this invention, when the first base is poured with concrete, the first connecting bar is directly set in the first base and poured together with the first base. Then, the first connecting bar is fixed to the ground with anchor bolts, ensuring the stability of the entire temporary support structure itself. When the second base is poured with concrete, the second connecting bar is set in the second base and poured together. Then, the second base and the ring beam seat of the steel pipe concrete X-column are connected with reinforcing bolts and reinforcing nuts, which plays a horizontal supporting role and prevents the steel pipe concrete X-column from tilting or shifting in the horizontal direction, further improving the stability of the temporary support.

[0024] 2. The temporary support structure in this invention adopts a multi-segment structure. The support base, support frame, adjustment frame and support column are all detachably connected. This ensures that the height of the entire support structure meets the support height requirements of the steel pipe concrete X column, and also allows the entire temporary support structure to be disassembled for easy movement.

[0025] 3. The temporary support structure in this invention can fine-tune the height of the support column through the fine-tuning component, which can conveniently, quickly and stably make the steel tube concrete X-column reach the expected angle and position. Moreover, the fine-tuning component in this application uses a structure in which tapered roller bearings and flat bearings cooperate with each other. This can not only satisfy the circumferential rotation of the fine-tuning screw, but also avoid the resistance to rotation caused by the weight of the steel tube concrete X-column acting on the support column to bear downward pressure, thereby improving the service life and adjustment accuracy of the fine-tuning component.

[0026] 4. The temporary support structure in this invention is movably connected to the steel-concrete composite X-column via a snap-fit ​​connector. The steel-concrete composite X-column is snapped into the trapezoidal groove of the snap-fit ​​connector. When the steel-concrete composite X-column moves closer to the temporary support, it squeezes the pressure rod, thereby driving the first connecting rod and the L-shaped connecting rod to rotate. This clamps and fixes the connecting column on the steel-concrete composite X-column from the side. The rollers and roller grooves reduce the frictional resistance between the connecting column and the snap-fit ​​connector during the clamping process. During disassembly, only the snap-fit ​​connector needs to be moved downwards to achieve automatic separation between the snap-fit ​​connector and the connecting column, greatly simplifying the construction operation process and reducing labor costs.

[0027] 5. The temporary support structure in this invention has a gradually decreasing cross-sectional area from bottom to top, and a large contact area between the bottom and the ground, which improves stability. The support frame body and the adjustment frame body in the middle adopt a frame structure of channel steel + I-beam + plate, which has good connection stability. Only the support column at the top adopts a round tube support structure, which increases the rigidity of the overall structure, avoids large deformation and failure caused by excessively long round tubes, and improves construction safety and accuracy. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the temporary support structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the support base structure of the present invention.

[0030] Figure 3 This is a cross-sectional view of the support base structure of the present invention.

[0031] Figure 4 This is a schematic diagram of the support frame structure of the present invention.

[0032] Figure 5 This is a schematic diagram of the adjustment frame structure of the present invention.

[0033] Figure 6 This is a schematic diagram of the fine-tuning component structure of the present invention.

[0034] Figure 7 This is a cross-sectional view of the structure of the fine-tuning component of the present invention.

[0035] Figure 8 For the present invention Figure 7 Enlarged view of a portion of the structure in section A.

[0036] Figure 9 This is a schematic diagram of the overall structure of the support column and snap-fit ​​component of the present invention.

[0037] Figure 10 This is a schematic diagram of the external structure of the snap-fit ​​connector of the present invention.

[0038] Figure 11 This is a schematic diagram of the internal structure of the snap-fit ​​connector of the present invention.

[0039] Figure 12 This is a schematic diagram of the connection between the snap-fit ​​component of the present invention and the steel-concrete composite X-column.

[0040] Figure 13 This is a cross-sectional view of the internal structure of the snap-fit ​​component of the present invention.

[0041] Figure 14 This is a schematic diagram of the L-shaped connecting rod in the rotating state of the snap-fit ​​component of the present invention.

[0042] Figure 15 This is a schematic diagram showing the connection relationship between the ring beam seat and the second base of the present invention.

[0043] Wherein: 1-Support base, 101-First base, 102-Second base, 103-Fixing frame, 1031-Second connecting through hole, 1032-Lifting ear, 104-Mounting plate, 2-Support frame, 201-Support frame mounting seat, 2011-First connecting through hole, 202-Support frame body, 203-Mounting platform, 204-Connecting plate, 2041-Fourth connecting through hole, 3-Adjusting frame, 301-Adjusting frame base, 3011-Third connecting through hole, 302-Adjusting frame body, 303-Reinforcing plate, 304-Reinforcing column, 305-Triangle plate, 306-L-shaped plate, 4-Supporting column, 401-Snap-fit ​​mounting seat, 402-Rotating connecting ear, 403-Snap-fit ​​rotating shaft, 5-Snap-fit, 501-Connecting block, 502-First snap-fit ​​block, 503-Second snap-fit ​​block, 504-Snap-fit 505-Trapezoidal groove, 506-Spring groove, 507-Return spring, 508-Pressure rod, 509-Connecting rod, 510-First connecting rod, 511-L-shaped connecting rod, 512-Roller, 6-First connecting rib, 7-Fine-adjusting motor, 8-Driving gear, 9-Fine-adjusting screw, 10-Driven gear, 11-Drive chain, 12-Fine-adjusting rod, 13-Limit ring, 14-Limit rod, 15-Limit Positioning lug, 1501-Limiting groove, 16-Mounting plate, 1601-Mounting groove, 17-Tapered roller bearing, 18-Connecting shaft, 19-Side bearing, 20-First flange, 21-Second flange, 22-Connecting column, 2201-Roller groove, 23-Second connecting rib, 24-Reinforcing screw, 25-Reinforcing nut, 26-Tilt sensor, 100-Steel pipe concrete X-column, 200-Ring beam seat. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0045] Example 1:

[0046] See attached document Figure 1-8 The temporary support for a double-crossing steel-concrete composite X-column of an indirect cooling tower, as shown, includes a support base 1. A support frame 2 is detachably connected to the top of the support base 1. An adjusting frame 3 is detachably connected to the top of the support frame 2. A support column 4 is movably connected to the top of the adjusting frame 3. A fine-tuning component for adjusting the height of the support column 4 is installed inside the adjusting frame 3. A snap-fit ​​5 is rotatably connected to the top of the support column 4, and the snap-fit ​​5 is detachably connected to the steel-concrete composite X-column 100. The support base 1, support frame 2, adjusting frame 3, and support column 4 are all vertically upward-facing, and all are detachably connected, allowing for individual disassembly and easy relocation.

[0047] Specifically, the support base 1 includes a first base 101 and a second base 102 made of concrete. The second base 102 is located at the top center of the first base 101, and a fixing frame 103 is fixed inside the second base 102. The bottom of the fixing frame 103 is located in the second base 102 and is fixed inside the second base 102 by the concrete during the pouring process. The top of the fixing frame 103 penetrates the second base 102. The first base 101 is provided with a plurality of first connecting ribs 6 for connecting to the ground. The first connecting ribs 6 are poured into the first base 101 with concrete, and the plurality of first connecting ribs 6 are distributed in a cross shape. The end of each first connecting rib 6 penetrates the side wall of the first base 101, and the end of the first connecting rib 6 is located outside the first base 101 and is fixed to the ground by anchor bolts (not shown in the figure).

[0048] The inner sidewall of the fixed frame 103 is provided with a mounting plate 104. The support frame 2 is detachably mounted on the top of the mounting plate 104. The support frame 2 includes a support frame mounting base 201 and a support frame body 202. The support frame mounting base 201 is placed on the mounting plate 104, and a plurality of first connecting through holes 2011 are opened around the support frame mounting base 201. The fixed frame 103 near the top is provided with second connecting through holes 1031 corresponding to the first connecting through holes 2011. The second connecting through holes 1031 are located above the second base 102. The first connecting through holes 2011 and the second connecting through holes 1031 are detachably connected by bolts.

[0049] The top of the support frame body 202 is fixedly provided with an installation platform 203 for connecting with the adjustment frame 3. Connecting plates 204 are fixedly provided around the top of the installation platform 203. The adjustment frame 3 includes an adjustment frame base 301 and an adjustment frame body 302. The adjustment frame base 301 is placed on the installation platform 203 and is located within a square space enclosed by the four connecting plates 204. A third connecting through hole 3011 is provided around the adjustment frame base 301. A fourth connecting through hole 2041 matching the third connecting through hole 3011 is provided on each of the four connecting plates 204. The third connecting through hole 3011 and the fourth connecting through hole 2041 are detachably connected by bolts. Both the support frame body 202 and the adjustment frame body 302 are constructed using channel steel and square steel welded together to form a frame-type support structure, improving overall stability.

[0050] Furthermore, a reinforcing plate 303 is fixedly provided on the top of the adjustment frame base 301, and a reinforcing column 304 is fixedly provided on the top of the reinforcing plate 303. A plurality of triangular plates 305 are fixedly provided on the outer periphery of the reinforcing column 304. The plurality of triangular plates 305 are all fixed on the top of the reinforcing plate 303, which reinforces the reinforcing column 304. An L-shaped plate 306 is fixedly provided on the top of the plurality of triangular plates 305. The top of the reinforcing column 304 penetrates the L-shaped plate 306. The reinforcing plate 303, the reinforcing column 304, the triangular plates 305 and the L-shaped plate 306 are all located inside the adjustment frame body 302. The fine-tuning component is installed on the L-shaped plate 306 and the reinforcing column 304.

[0051] The fine-tuning assembly includes a fine-tuning motor 7 mounted on the L-shaped plate 306. A drive gear 8 is connected to the output shaft of the fine-tuning motor 7. A fine-tuning screw 9 is rotatably connected to the top of the reinforcing column 304. A driven gear 10 is fixedly sleeved on the fine-tuning screw 9. The drive gear 8 and the driven gear 10 are connected by a drive chain 11. A fine-tuning rod 12 is externally threaded onto the fine-tuning screw 9. The top of the fine-tuning rod 12 is connected to the support column 4. A limiting ring 13 is fixedly connected to the outer side of the fine-tuning rod 12 near the bottom. Two limiting rods 14 are symmetrically fixed on the limiting ring 13. Two limiting ears 15 corresponding to the limiting rods 14 are symmetrically fixed on the top of the adjusting frame body 302. Each limiting ear 15 has a limiting groove 1501. The limiting rod 14 passes through the corresponding limiting groove 1501. When the fine-tuning motor 7 is working, it drives the drive gear 8 to rotate, which in turn drives the driven gear 10 to rotate under the action of the drive chain 11. When the driven gear 10 rotates, it drives the fine-tuning screw 9, which is fixedly connected to it, to rotate. Since the fine-tuning screw 9 and the fine-tuning rod 12 are threadedly connected and are subject to the action of the limiting rod 14 and the limiting groove 1501, the fine-tuning screw 9 drives the fine-tuning rod 12 to move in the up and down direction when it rotates.

[0052] The specific method of the rotatable connection between the fine-tuning screw 9 and the reinforcing column 304 is as follows: A mounting plate 16 is fixedly sleeved on the top of the reinforcing column 304. A mounting groove 1601 is opened on the top of the mounting plate 16. A tapered roller bearing 17 is installed in the mounting groove 1601. A connecting shaft 18 is rotatably mounted inside the tapered roller bearing 17. A plane bearing 19 is rotatably sleeved outside the connecting shaft 18, and the plane bearing 19 is located above the tapered roller bearing 17. A first flange 20 is also fixedly sleeved on the connecting shaft 18, and the first flange 20 is located above the plane bearing 19. The first flange 20 and the connecting shaft 18 form a cross-shaped integral structure. The fine-tuning screw 9 is coaxially fixed at the top center of the first flange 20. A second flange 21 is rotatably sleeved on the reinforcing column 304. The first flange 20 and the second flange 21 are connected by bolts. A gap is left between the second flange 21 and the reinforcing column 304 so that the second flange 21 can rotate around the reinforcing column 304. After the first flange 20 rotates to the aforementioned position, the second flange 21 is rotated so that the bolt holes on the two flanges align vertically. Finally, they are fixed with bolts to form an integral rotatable structure. When the driven gear 10 rotates and drives the fine-tuning screw 9 to rotate, it will drive the integral structure formed by the first flange 20, the connecting shaft 18, and the second flange 21 to rotate. This structure, which uses tapered roller bearings 17 and flat bearings 19 in cooperation, can satisfy the circumferential rotation of the fine-tuning screw 9 and avoid the resistance to rotation caused by the weight of the steel-concrete X-column 100 acting on the support column 4 to bear downward pressure, thereby improving the service life and adjustment accuracy of the fine-tuning component.

[0053] The top of the fine-tuning rod 12 is detachably connected to the support column 4 via a flange and bolts. The support column 4 and the steel-concrete X-column 100 are connected via a snap-fit ​​5. In this embodiment, the snap-fit ​​5 can be any structure in the prior art that can connect the support column 4 and the steel-concrete X-column 100. For example, a snap-fit ​​plate can be rotatably connected to the top of the support column 4, and a snap-fit ​​plate can be fixed at the intersection of the steel-concrete X-column 100. The two snap-fit ​​plates are connected by bolts.

[0054] The working principle of the temporary support in this embodiment is as follows: When the temporary support of the present invention is used, a first base 101 is first poured on the inner side of the steel pipe concrete X-column 100. When pouring the first base 101, multiple first connecting ribs 6 arranged in a cross pattern are pre-embedded and fixed inside the first base. Then, a second base 102 is poured on top of the first base 101. When pouring the second base 102, a fixing frame 103 is pre-embedded inside, and the top of the fixing frame 103 passes through the second base 102. The ends of the first connecting ribs 6 are fixed to the ground with anchor bolts.

[0055] The support frame mounting base 201 of the support frame 2 is fixed to the fixed frame 103 with bolts. The adjustment frame base 301 is placed on the mounting platform 203. The adjustment frame body 302 is fixed to the connecting plate 204 with bolts. The top of the fine adjustment rod 12 is fixed to the bottom of the support column 4 with flange and bolts. The fine adjustment motor 7 is started. When the fine adjustment motor 7 is working, it drives the drive gear 8 to rotate. Under the action of the drive chain 11, it drives the driven gear 10 to rotate. When the driven gear 10 rotates, it drives the fine adjustment screw 9 fixedly connected to it to rotate. Since the fine adjustment screw 9 and the fine adjustment rod 12 are threadedly connected and are subject to the action of the limit rod 14 and the limit groove 1501, the fine adjustment screw 9 rotates and drives the fine adjustment rod 12 to move in the up and down direction.

[0056] After the height of the support column 4 is adjusted to the required height, the top of the support column 4 is connected to the steel-concrete composite X-column 100 through the snap-fit ​​connector 5, thereby achieving temporary support for the steel-concrete composite X-column 100.

[0057] Example 2:

[0058] Based on Embodiment 1, the specific structures of the support column 4 and the snap-fit ​​component 5 in this application are as follows: Figure 9-14 As shown, a snap-fit ​​mounting base 401 is fixedly provided on the top of the support column 4, and two rotating connecting ears 402 are fixedly provided on the top of the snap-fit ​​mounting base 401. A snap-fit ​​rotating shaft 403 is fixedly provided between the two rotating connecting ears 402, and the snap-fit ​​5 is rotatably sleeved on the snap-fit ​​rotating shaft 403.

[0059] The snap-fit ​​component 5 includes a connecting block 501 rotatably sleeved on the snap-fit ​​component rotation shaft 403. The connecting block 501 has a T-shaped structure, with the bottom of the vertical section rotatably sleeved on the snap-fit ​​component rotation shaft 403, and the top of the horizontal section fixedly provided with a first snap-fit ​​block 502 and a second snap-fit ​​block 503. Both the first snap-fit ​​block 502 and the second snap-fit ​​block 503 have a cubic structure, and the bottoms of the first snap-fit ​​block 502 and the second snap-fit ​​block 503 are in contact with each other. The first snap-fit ​​block 502 has a snap-fit ​​rotation groove 504 on the side near the second snap-fit ​​block 502, and the tops of the first snap-fit ​​block 502 and the second snap-fit ​​block 503 have trapezoidal grooves 505 that are larger at the top and smaller at the bottom. A connecting column 22 matching the trapezoidal groove 505 is fixedly provided at the intersection of the steel pipe concrete X-column 100, and the connecting column 22 is movably snapped in the two trapezoidal grooves 505.

[0060] The bottom of the snap-fit ​​rotating groove 504 is connected to a spring groove 506, and a return spring 507 is installed in the spring groove 506. A pressure rod 508 is fixedly installed on the top of the return spring 507. It should be noted that the pressure rod 508 is generally embedded in the first snap-fit ​​block 502 and half embedded in the second snap-fit ​​block 503, so as to ensure its stability during the up and down movement. A connecting rod 509 is vertically fixed near the top of the pressure rod 508. The pressure rod 508 and the connecting rod 509 form a cross-shaped structure, and both ends of the connecting rod 509 are movably connected to the first connecting rod 510. Each first connecting rod 510 is movably connected to an L-shaped connecting rod 511 at the end away from the connecting rod 509. A roller 512 is installed at the end of the L-shaped connecting rod 511. Roller grooves 2201 matching the rollers 512 are opened on both sides of the connecting column 22.

[0061] When the steel-concrete composite X-column 100 is pressed downwards into the trapezoidal groove 505, it presses down on the pressure rod 508, thereby squeezing the return spring 507 downwards. Simultaneously, it drives the first connecting rod 510 and the L-shaped connecting rod 511 to rotate, and the two rollers 512 move towards each other, clamping and fixing the connecting column 22 between the two rollers 512. At the same time, the connecting column 22 is clamped and fixed in the trapezoidal groove 505. When disassembling the temporary support, the support column 4 and the locking piece 5 are moved downwards as a whole. The return spring 507 returns to its original deformation, and the rollers 512 disengage from the connecting column 22, allowing for quick and automatic disassembly of the entire temporary support from the steel-concrete composite X-column 100.

[0062] Example 3:

[0063] Based on Embodiment 2, in order to further improve the horizontal support effect of the temporary support on the steel-concrete composite X-column 100, a component for limiting the horizontal movement of the steel-concrete composite X-column 100 is also provided between the ring beam seat 200 and the support base 1, as shown in the attached figure. Figure 15As shown. A second connecting rib 23 is also fixed inside the second base 102. The second connecting rib 23 is located below the fixed frame 103. The second connecting rib 23 is directly poured into the second base 102 during the pouring of the second base 102. Both ends of the second connecting rib 23 penetrate the second base 102. Two reinforcing screws 24 are detachably connected to the ring beam seat 200 of the steel pipe concrete X-column 100. Specifically, shorter screws can be pre-embedded in the ring beam seat 200. Then, a flange is connected to the side of the ring beam seat 200 through the screws. The reinforcing screws 24 are fixedly connected to the flange. The reinforcing screws 24 and the flange can be detached from the ring beam seat 200 as a whole. Two reinforcing nuts 25 are threaded on each reinforcing screw 24. Each reinforcing nut 24 penetrates the second connecting rib 23, and the two reinforcing nuts 25 are located on both sides of the second connecting rib 23.

[0064] By connecting the ring beam seat 200 and the second base 102 in the horizontal direction with the reinforcing screw 24, a horizontal support function can be provided, preventing the steel-concrete composite X-column from tilting or shifting in the horizontal direction, and further improving the stability of the temporary support.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A temporary support for a double-intersecting steel tube concrete X column of a cooling tower, comprising a support base (1), characterized in that: The top of the support base (1) is detachably connected to a support frame (2), the top of the support frame (2) is detachably connected to an adjustment frame (3), the top of the adjustment frame (3) is movably connected to a support column (4), and the adjustment frame (3) is equipped with a fine-tuning component for adjusting the height of the support column (4). The top of the support column (4) is rotatably connected to a snap-fit ​​piece (5), and the snap-fit ​​piece (5) is detachably connected to the steel pipe concrete X-column (100). The adjustment frame (3) includes an adjustment frame base (301) and an adjustment frame body (302). A reinforcing plate (303) is fixedly provided on the top of the adjustment frame base (301), and a reinforcing column (304) is fixedly provided on the top of the reinforcing plate (303). The fine-tuning assembly includes a fine-tuning screw (9) rotatably connected to the top of the reinforcing column (304), and a fine-tuning rod (12) is externally threaded onto the fine-tuning screw (9). The top of the fine-tuning rod (12) is connected to the support column (4). A mounting plate (16) is fixedly fitted on the top of the reinforcing column (304). A mounting groove (1601) is opened on the top of the mounting plate (16). A tapered roller bearing (17) is installed in the mounting groove (1601). A connecting shaft (18) is rotatably installed in the tapered roller bearing (17). A plane bearing (19) is rotatably fitted on the outside of the connecting shaft (18). The plane bearing (19) is located above the tapered roller bearing (17). A first flange (20) is also fixedly fitted on the connecting shaft (18). The first flange (20) is located above the plane bearing (19). The fine-tuning screw (9) is coaxially fixed at the top center of the first flange (20). A second flange (21) is also rotatably fitted on the reinforcing column (304). The first flange (20) and the second flange (21) are connected by bolts. The top of the support column (4) is fixedly provided with a snap-fit ​​mounting base (401), and the top of the snap-fit ​​mounting base (401) is fixedly provided with two rotating connecting ears (402). A snap-fit ​​rotating shaft (403) is fixedly provided between the two rotating connecting ears (402), and the snap-fit ​​(5) is rotatably sleeved on the snap-fit ​​rotating shaft (403). The snap-fit ​​component (5) includes a connecting block (501) rotatably sleeved on the snap-fit ​​component rotating shaft (403). The top of the connecting block (501) is fixed with a first snap-fit ​​block (502) and a second snap-fit ​​block (503). The first snap-fit ​​block (502) has a snap-fit ​​rotating groove (504) on the side near the second snap-fit ​​block (503). The top of the first snap-fit ​​block (502) and the second snap-fit ​​block (503) are both provided with trapezoidal grooves (505) that are larger at the top and smaller at the bottom. A connecting column (22) matching the trapezoidal groove (505) is fixed at the intersection of the steel pipe concrete X-column (100). The connecting column (22) is movably snapped in the two trapezoidal grooves (505). The bottom of the snap-fit ​​rotating groove (504) is connected to a spring groove (506), and a return spring (507) is installed in the spring groove (506). A pressure rod (508) is fixedly provided on the top of the return spring (507). A connecting rod (509) is vertically fixed near the top of the pressure rod (508). Both ends of the connecting rod (509) are movably connected to a first connecting rod (510). Each first connecting rod (510) is movably connected to an L-shaped connecting rod (511) at the end away from the connecting rod (509). A roller (512) is installed at the end of the L-shaped connecting rod (511). Roller grooves (2201) matching the rollers (512) are opened on both sides of the connecting column (22).

2. A temporary support for a double-intersecting steel tube concrete X column of a cooling tower according to claim 1, characterized in that: The support base (1) includes a first base (101) and a second base (102) made of concrete. The second base (102) is located at the top center of the first base (101), and a fixing frame (103) is fixed inside the second base (102). The top of the fixing frame (103) passes through the second base (102). The inner sidewall of the fixed frame (103) is provided with a ring of mounting plate (104), and the support frame (2) is detachably installed on the top of the mounting plate (104); the first base (101) is provided with a plurality of first connecting ribs (6) for connecting with the ground, and the ends of the plurality of first connecting ribs (6) all penetrate the first base (101).

3. A temporary support for a double-intersecting steel tube concrete X column of a cooling tower according to claim 2, characterized in that: The support frame (2) includes a support frame mounting base (201) and a support frame body (202). The support frame mounting base (201) is placed on the mounting plate (104), and the four sides of the support frame mounting base (201) are detachably connected to the four sides of the fixing frame (103) by bolts. The top of the support frame body (202) is fixed with an installation platform (203) for connecting with the adjustment frame (3), and the top of the installation platform (203) is fixed with connecting plates (204) around its perimeter.

4. The temporary support for a double-crossing steel-concrete composite X-column of an indirect cooling tower according to claim 3, characterized in that: The adjustment frame base (301) is placed on the mounting platform (203), and the four sides of the adjustment frame base (301) are detachably connected to the four connecting plates (204) by bolts. Multiple triangular plates (305) are fixedly provided on the outer periphery of the reinforcing column (304), and an L-shaped plate (306) is fixedly provided on the top of the multiple triangular plates (305). The top of the reinforcing column (304) passes through the L-shaped plate (306), and the reinforcing plate (303), reinforcing column (304), triangular plates (305) and L-shaped plate (306) are all located inside the adjusting frame body (302). The fine-tuning component is installed on the L-shaped plate (306) and the reinforcing column (304).

5. A temporary support for a double-intersecting steel tube concrete X column of a cooling tower according to claim 4, characterized in that: The fine-tuning assembly also includes a fine-tuning motor (7) mounted on the L-shaped plate (306), a drive gear (8) connected to the output shaft of the fine-tuning motor (7), a driven gear (10) fixedly sleeved on the fine-tuning screw (9), and the drive gear (8) and the driven gear (10) connected by a drive chain (11); a limit ring (13) is fixedly connected to the outer side of the fine-tuning rod (12) near the bottom, and two limit rods (14) are symmetrically fixed on the limit ring (13); two limit ears (15) corresponding to the limit rods (14) are symmetrically fixed on the top of the adjustment frame body (302), and each limit ear (15) has a limit groove (1501) opened on it, and the limit rod (14) passes through the corresponding limit groove (1501).

6. A temporary support for a double-intersecting steel tube concrete X column of a cooling tower according to claim 2, characterized in that: A second connecting rib (23) is also fixed inside the second base (102). The second connecting rib (23) is located below the fixed frame (103), and both ends of the second connecting rib (23) penetrate the second base (102). Two reinforcing screws (24) are detachably connected to the ring beam seat (200) of the steel pipe concrete X-column (100). Two reinforcing nuts (25) are threaded onto each reinforcing screw (24). Each reinforcing screw (24) penetrates the second connecting rib (23), and the two reinforcing nuts (25) are located on both sides of the second connecting rib (23).

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