Support foundation connection conversion device

Abstract

The utility model provides a support foundation connection conversion device which comprises two supporting units, each supporting unit comprises a bearing beam in rigid connection with a foundation, two connection conversion pieces are arranged on each bearing beam, and the four connection conversion pieces of the two supporting units correspond to four stand columns of a support respectively. The connecting conversion piece comprises an I-shaped cushion block, a cover plate is arranged on the top of the I-shaped cushion block, and fixing holes corresponding to standard steel structure section stand column bolt hole positions are formed in the cover plate. The overall stress area is effectively enlarged through the bearing beams, vertical loads of the tower are evenly distributed to the foundation through reasonable arrangement of the connecting conversion pieces, overlarge local stress of the foundation is avoided, the gravity center of the whole tower is stable and even in stress through reasonable arrangement of the positions between the bearing beams and the connecting conversion pieces, and therefore the structure of the tower is compact. The bottom of the tower is prevented from inclining or shifting, meanwhile, through the fixing holes formed in the cover plate, connection with the support through fixing of bolts and nuts is facilitated, and repeated utilization of the support assembly is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of bracket support, in particular to a bracket foundation connection conversion device. Background Art

[0002] In the construction of large bridges and other major projects, the foundation connection of the support tower is a key link to ensure the stability and safety of the overall structure. The effective transfer of the tower's vertical load and the uniform distribution of the foundation's force are directly related to the stability of the construction support and the construction accuracy. However, traditional tower foundation connections usually transfer the tower's vertical load directly to the foundation, which can easily lead to local force concentration on the foundation, causing stress overload, affecting the foundation's bearing capacity and construction safety. At the same time, it is usually fixed directly to the foundation by welding, which requires on-site welding and multiple debugging. Not only does it have a long construction period and affect the reuse of the support components, but disassembly usually requires destructive operations, which cannot achieve efficient turnover, resulting in material waste and increased costs. Therefore, a support foundation connection conversion device is proposed to solve the above problems. Utility Model Content

[0003] The main purpose of the utility model is to provide a support foundation connection conversion device to solve the problem that local force concentration on the foundation is easily caused, resulting in stress overload, affecting the bearing capacity of the foundation and construction safety.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a support foundation connection conversion device, including two support units, the support unit includes a pad beam rigidly connected to the foundation, and two connection conversion pieces are provided on the pad beam, and the four connection conversion pieces of the two support units correspond to the four columns of the support respectively;

[0005] The connection conversion piece includes an I-shaped pad, a cover plate is provided on the top of the I-shaped pad, and fixing holes corresponding to the bolt hole positions of the standard steel structure section columns are provided on the cover plate.

[0006] In the preferred embodiment, the pad beam is composed of a single I-beam or a combination of multiple I-beams, and U-shaped sliding limiters are provided on both sides of the I-shaped pad block, which slide and wrap the flange above the pad beam therein.

[0007] In the preferred embodiment, sliding grooves are provided on both side flanges above the cushion beam;

[0008] The U-shaped sliding limiter is provided with a locking groove on the lower side panel, and a through hole is provided on the upper side panel, in which a locking bolt is inserted. The inserted end of the locking bolt passes through the sliding groove and the locking groove in turn, and a locking nut is threadedly installed. The locking nut can contact the bottom of the flange above the pad beam through the locking groove.

[0009] In a preferred embodiment, a support plate adapted to the groove on the side of the cushion beam is further provided at the bottom of the U-shaped sliding limiter. Except for the upper edge, the other three edges of the support plate are provided with support reinforcements extending to the side.

[0010] In a preferred embodiment, the cushion beam is composed of two I-beams, and a spacing adjustment mechanism for adjusting the spacing between the two connection conversion members is provided in the cavity connecting the two I-beams.

[0011] In the preferred embodiment, a movable groove communicating with the cavity is provided at the top of the cavity;

[0012] The spacing adjustment mechanism includes an axle seat hoisted at both ends of the cavity, and a positive and negative thread screw is rotatably arranged between the bearings of the two axle seats. One end of the positive and negative thread screw passes through the axle seat and is connected to a rotating hand plate. A connecting plate passing through the movable groove is provided at the bottom of the I-shaped pad, and the connecting plate is sleeved on the corresponding threads of the positive and negative thread screws through the internal thread provided thereon.

[0013] The utility model provides a support foundation connection conversion device, which effectively expands the overall force-bearing area through the pad beam, and evenly distributes the vertical load of the tower to the foundation through the reasonable arrangement of the connection conversion parts, avoiding excessive local force on the foundation. Through the reasonable arrangement of the position between the pad beam and the connection conversion parts, the center of gravity of the entire tower is stable and the force is evenly distributed, avoiding tilting or displacement of the bottom of the tower. At the same time, the fixing holes provided on the cover plate facilitate the connection with the bracket by bolts and nuts, which facilitates the reuse of the bracket assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 It is a side view of the overall structure of the utility model;

[0016] Figure 2 This utility model Figure 1 Another perspective structure diagram;

[0017] Figure 3 This utility model Figure 1 A magnified view of the structure in the middle;

[0018] Figure 4 This is a structural diagram of the first embodiment of the basic connection conversion device of the utility model;

[0019] Figure 5 This is a structural diagram of the connection conversion piece of the utility model;

[0020] Figure 6 This utility model Figure 5 Another perspective structure diagram;

[0021] Figure 7 This is an exploded structural diagram of the basic connection conversion device of the utility model;

[0022] Figure 8 This is a structural diagram of the second embodiment of the basic connection conversion device of the utility model;

[0023] Figure 9 This utility model Figure 8 Half-section structure diagram;

[0024] Figure 10 This is a structural diagram of the connection between the tower connection system and the column part of the utility model;

[0025] Figure 11 This is a structural diagram of the clamp of the utility model;

[0026] Figure 12 This utility model Figure 11 Exploded structure diagram;

[0027] Figure 13 This utility model Figure 11 Half-section structure diagram;

[0028] Figure 14 This utility model Figure 13 Middle B is an enlarged view of the structure;

[0029] Figure 15 This is a half-section exploded structural diagram of the pawl assembly of the utility model;

[0030] Figure 16 This is a half-section diagram of the connection structure between the telescopic rod and the pawl of the utility model;

[0031] In the figure: foundation 1; support tower 2; foundation connection conversion device 20; cushion beam 200; sliding groove 2000; moving groove 2001; connection conversion member 201; I-shaped spacer 2010; cover plate 2011; fixing hole 2012; U-shaped sliding limiter 2013; locking groove 2014; through hole 2015; support plate 2016; support reinforcement 2017; locking bolt 2018; locking nut 2019; shaft seat 2020; positive and negative thread screw 2021; rotating hand plate 2022; connecting plate 2023; internal thread sleeve 2024; spacing adjustment mechanism 202; standard steel structure section 21; height Adjustment section 22; non-standard steel structure section 220; supporting beam 221; adjustment block 222; inter-tower connection system 3; hoop structure 30; U-shaped docking piece 300; docking plate 301; docking screw 302; docking hole 303; docking nut 304; connecting ear 305; groove 306; ratchet 307; pawl assembly 308; through ring 3030; telescopic slot 3031; through hole 3032; telescopic rod 3033; limit plate 3034; pawl 3035; return spring 3036; threaded wire 3037; T-shaped connector 3038; parallel connecting rod 31; diagonal bracing rod 32; assembled arch rib 4. DETAILED DESCRIPTION

[0032] Example 1

[0033] like Figure 1-3 As shown, an assembled arch rib assembly bracket includes two supporting towers 2 arranged on a foundation 1. The heights of the two supporting towers 2 correspond to the heights of the support points of the assembled arch ribs 4, respectively, so as to match the support points of the assembled arch ribs 4 at different positions and heights. An inter-tower connection system 3 is provided between the two supporting towers 2. The inter-tower connection system 3 can be used to form an integral supporting structure of the two supporting towers 2, thereby preventing a single tower from tilting or displacing due to lateral force or wind load, and thus providing stable support for the installation of the assembled arch ribs 4 during the construction process.

[0034] A plurality of guy ropes 5 are also provided on the outside of the supporting tower 2. One end of the guy rope 5 is connected to the standard steel structure section 21 or the non-standard steel structure section 220 located above through a rope clamp, and the other end is connected to the foundation 1 through a lifting lug, thereby further improving the overall wind resistance.

[0035] The support tower 2 includes a foundation connection conversion device 20 connected to the foundation 1, standard steel structure segments 21 arranged sequentially on the foundation connection conversion device 20, and a height adjustment segment 22 provided on the topmost standard steel structure segment 21. The foundation connection conversion device 20 is used to achieve a stable connection between the support tower 2 and the foundation 1; the standard steel structure segment 21 is a frame structure composed of multiple standard steel sections and is stacked and assembled in a modular manner to achieve rapid construction of support towers of different heights. In this embodiment, the standard steel structure segments 21 are connected by bolts for easy disassembly and reuse; the height adjustment segment 22 is used to accurately adjust the height of the support tower to match the elevation of the assembled arch rib, which specifically includes:

[0036] The non-standard steel structure segment 220 is arranged on the topmost standard steel structure segment 21. The non-standard steel structure segment 220 is also a frame structure spliced ​​by multiple standard steel sections. The tops of its four vertical poles form a corresponding height difference along the axial direction of the prefabricated arch rib 4 to match the spatial curve of the arch rib, and two support beams 221 are arranged perpendicular to the axial direction of the prefabricated arch rib 4. The support beams 221 serve as the direct support structure of the arch rib segment. The support beams 221 are provided with multiple adjustment blocks 222 for supporting the prefabricated arch rib 4. In this embodiment, the number of adjustment blocks 222 on a single support beam 221 is two, and the left and right supports are arranged below the prefabricated arch rib 4 for its installation. The vertical poles, support beams 221 and adjustment blocks 222 are fixed by bolts.

[0037] It should be noted that when in use, the height of the adjustment block is simulated through a 3D model, and is processed and fixed to the beam in advance to accurately adjust the elevation and line shape of the arch rib, and then the arch rib is hoisted so that it falls on the adjustment block. In addition, walkway boards are laid between the supporting beams 221, and guardrails are set up as a working platform for welding the webs between the arch rib segments.

[0038] The prefabricated arch rib assembly bracket of this embodiment can meet the assembly requirements of complex-shaped arch ribs, provide an efficient, stable, and adjustable modular construction support system, effectively improve construction efficiency and ensure project quality. At the same time, the segments are connected by bolts, avoiding damage to standard sections caused by welding, facilitating installation and turnover, and increasing material life and turnover times.

[0039] Example 2

[0040] Further illustrate with reference to Example 1, Figure 4-7In the structure shown, the foundation connection conversion device 20 is composed of two supporting units, which provide stable support for the standard steel structure section 21 at the bottom, thereby realizing a reliable connection between the supporting tower 2 and the foundation 1. The supporting unit includes a pad beam 200 rigidly connected to the foundation 1. The pad beam 200 can be fixed to the foundation 1 by embedded bolts or welding. Two connection conversion parts 201 are provided on the pad beam 200. The four connection conversion parts 201 of the two supporting units correspond to the four columns of the bracket, specifically the four columns of the standard steel structure section 21 at the bottom. The pad beam 200 effectively expands the overall force-bearing area, and through the reasonable arrangement of the connection conversion parts 201, the vertical load of the tower is evenly distributed to the foundation 1, avoiding excessive local force on the foundation, and through the reasonable arrangement of the position between the pad beam 200 and the connection conversion part 201, the center of gravity of the entire tower is stable and the force is evenly distributed, avoiding tilting or displacement of the bottom of the tower.

[0041] In the preferred embodiment, the connection conversion member 201 includes an I-shaped pad 2010, and a cover plate 2011 is provided on the top of the I-shaped pad 2010. The cover plate 2011 is provided with fixing holes 2012 corresponding to the column bolt holes of the standard steel structure section 21. The shape characteristics of the I-shaped pad 2010 facilitate the setting of the fixing holes 2012 and the installation of the nuts.

[0042] In the preferred embodiment, the pad beam 200 is composed of a single I-beam or a combination of multiple I-beams, and U-shaped sliding limiters 2013 are provided on both sides of the I-shaped pad block 2010. The U-shaped sliding limiters 2013 slide and wrap the flange above the pad beam 200 therein, so that the connecting conversion member 201 can slide linearly on the pad beam 200, thereby adjusting its specific support position to meet the spacing requirements between the columns of the standard steel structure section 21.

[0043] Sliding grooves 2000 are provided on both side flanges above the pad beam 200. The sliding grooves 2000 are long slots processed on the flanges of the pad beam and arranged along the longitudinal direction of the pad beam to cooperate with the sliding and positioning of the connecting conversion part 201. The length of the sliding groove is designed to meet the range requirements that may be adjusted during construction, ensuring that the connecting conversion part can slide freely and be fixed within the linear range.

[0044] The U-shaped sliding limiter 2013 is provided with a locking groove 2014 on the lower side panel, and a through hole 2015 is provided on the upper side panel, in which a locking bolt 2018 is inserted. The insertion end of the locking bolt 2018 passes through the sliding groove 2000 and the locking groove 2014 in sequence, and is threadedly installed with a locking nut 2019. The locking nut 2019 can contact the bottom of the upper flange of the pad beam 200 through the locking groove 2014.

[0045] With this design, after the locking nut 2019 is released from contact with the bottom of the upper flange of the pad beam 200, the distance between the two connecting conversion parts 201 can be adjusted by sliding. After the adjustment is completed, the locking effect is achieved by tightening the locking nut 2019 to make it contact with the flange of the pad beam 200.

[0046] In the preferred embodiment, the bottom of the U-shaped sliding limiter 2013 is also provided with a support plate 2016 that is compatible with the side groove of the pad beam 200. Except for the upper edge, the other three edges of the support plate 2016 are provided with support reinforcements 2017 extending to the side. The support plate 2016 and the support reinforcements 2017 are used to effectively increase the contact area between the pad beam 200 and the U-shaped sliding limiter 2013, effectively disperse the vertical load transmitted by the structure, and also play the role of supporting the flange structure of the pad beam 200, further enhancing the stability and bearing performance of the overall structure, and avoiding problems caused by force concentration or lateral displacement.

[0047] Example 3

[0048] Further illustrate with reference to Example 2, Figure 8-9 As shown in the structure, in order to further improve the spacing adjustment accuracy of the two connecting conversion parts 201, the cushion beam 200 in this embodiment is composed of two I-beams, and a spacing adjustment mechanism 202 for adjusting the spacing between the two connecting conversion parts 201 is provided in the cavity connecting the two, and a movable groove 2001 connected thereto is provided at the top of the cavity.

[0049] Among them, the spacing adjustment mechanism 202 includes an axle seat 2020 hoisted at both ends of the cavity, and a positive and negative thread screw 2021 is rotatably arranged between the bearings of the two axle seats 2020. One end of the positive and negative thread screw 2021 passes through the axle seat 2020 and is connected to a rotating hand plate 2022, so that the positive and negative thread screw 2021 can be rotated between the two axle seats 2020 by rotating the hand plate 2022.

[0050] A connecting plate 2023 passing through the movable groove 2001 is provided at the bottom of the I-shaped pad 2010. The connecting plate 2023 is mounted on the corresponding threads of the positive and negative thread screws 2021 through the internal thread sleeve 2024 provided thereon, so that the precise adjustment of the distance between the two connecting conversion parts 201 is achieved through the forward and reverse rotation of the positive and negative thread screws 2021.

[0051] Example 4

[0052] Further illustrate with reference to Example 1, Figure 10-16In the structure shown, the inter-tower connection system 3 includes a plurality of hoop structures 30 arranged on the columns of the standard steel structure section 21 on the opposite sides of the two supporting towers 2. A plurality of parallel connecting rods 31 and diagonal braces 32 are arranged between the two supporting towers 2 through the hoop structures 30, wherein the parallel connecting rods 31 are used to provide a transverse connection between the two supporting towers 2, and their main function is to enhance the horizontal rigidity between the towers. The diagonal braces 32 connect the two supporting towers 2 through a certain inclination angle, and are mainly used to enhance the anti-overturning ability and overall stability between the towers.

[0053] It should be noted that both the parallel connecting rods 31 and the diagonal bracing rods 32 are made of high-strength steel, and their lengths meet the height and spacing requirements of the two supporting towers 2 .

[0054] In this embodiment, there are two inter-tower connection systems 3 , which are arranged front and back between two supporting towers 2 .

[0055] In the preferred embodiment, the clamp structure 30 includes two symmetrically arranged U-shaped docking pieces 300, and both ends of the U-shaped docking piece 300 are provided with outwardly extending docking plates 301, and a plurality of docking screws 302 are provided on the docking plate 301 of one of the U-shaped docking pieces 300, and docking holes 303 matching the docking screws 302 are provided on the docking plate 301 of the other U-shaped docking piece 300. The ends of the docking screws 302 pass through the corresponding docking holes 303 and are threadedly fitted with docking nuts 304. In this embodiment, the number of docking screws 302 on a single docking plate 301 is three. When in use, the docking screws 302 are inserted into the corresponding docking holes 303 and the docking nuts 304 are installed to achieve a locking effect, thereby ensuring that the two U-shaped docking pieces 300 firmly hold the columns.

[0056] The side of one of the U-shaped docking parts 300 is also provided with multiple connecting ears 305 for connecting the parallel connecting rod 31 and the diagonal support rod 32. The connecting ears 305 are provided with mounting holes for connecting the parallel connecting rod 31 and the diagonal support rod 32 through a pin shaft. In this embodiment, the number of connecting ears 305 is three, which can connect one parallel connecting rod 31 and two diagonal support rods 32 at the same time.

[0057] In the preferred embodiment, in order to improve the stability of the two U-shaped docking parts 300 during the installation process, a groove 306 is provided on the outside of the docking nut 304, a ratchet 307 is provided in the groove 306, and a pawl assembly 308 cooperating with the ratchet 307 is provided at the docking hole 303. Through the cooperation between the ratchet 307 and the pawl assembly 308, the clamping posture can be maintained when the two U-shaped docking parts 300 are not locked.

[0058] With this design, when the two U-shaped docking parts 300 are docked and clamped to the vertical pole, the ratchet 307 and the pawl assembly 308 can be used to keep the two in a clamping posture when the docking nut 304 is not installed, so that the installation height can be maintained. There is no need for construction workers to maintain its position when installing the docking nut 304, which greatly improves its installation convenience.

[0059] In the preferred embodiment, the pawl assembly 308 includes a through ring 3030 arranged at the docking hole 303, the inner diameter of the through ring 3030 is the same as the diameter of the docking hole 303, a telescopic groove 3031 is provided on the inner side of the through ring 3030, and a through hole 3032 connected to the telescopic groove 3031 is provided on the outer side, and a telescopic rod 3033 is telescopically provided through the through hole 3032 and the telescopic groove 3031, and a limit plate 3034 and a pawl 3035 are respectively provided at both ends of the telescopic rod 3033, the diameter of the limit plate 3034 is larger than the diameter of the through hole 3032, the pawl 3035 can pass through the telescopic groove 3031 and adapt to the ratchet 307, and the outside of the telescopic rod 3033 is provided with a return spring 3036 located between the telescopic groove 3031 and the pawl 3035.

[0060] With this design, a guide path can be provided for the movement of the telescopic rod 3033 and the pawl 3035 through the docking hole 303, and the limit plate 3034 plays a limiting role. When the telescopic rod 3033 passes through the through ring 3030, the pawl 3035 telescopes and moves through contact with the ratchet 307 and under the action of the return spring 3036. When it moves to the extreme position, the interference between the pawl 3035 and the ratchet 307 effectively prevents the telescopic rod 3033 from detaching.

[0061] Furthermore, rubber pads 309 are provided on the inner sides of the two U-shaped docking pieces 300. The elasticity of the rubber pads 309 and the locking of the pawl assembly 308 and the ratchet 307 can further enhance the anti-slip performance and stability, while preventing the U-shaped docking pieces from scratching the surface of the tower column.

[0062] The telescopic rod 3033 and the pawl 3035 are rotatably connected, wherein a T-slot 3039 is provided at the connection between the pawl 3035 and the telescopic rod 3033 , and a T-shaped connector 3038 movably disposed in the T-slot 3039 is provided at the end of the telescopic rod 3033 .

[0063] The through hole 3032 is a threaded hole, and a thread 3037 adapted to the threaded hole is provided at one end of the telescopic rod 3033 close to the pawl 3035 .

[0064] With this design, when dismantling, the pawl 3035 can be pulled out of the pawl 3035 through the telescopic rod 3033 to release the interference between the two, and the telescopic rod 3033 can be rotated to be threadedly connected to the through hole 3032 to maintain its unlocked state.

[0065] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A support foundation connection conversion device, characterized by: The invention comprises two supporting units, each supporting unit comprising a cushion beam (200) rigidly connected to a foundation (1), two connecting conversion members (201) being provided on the cushion beam (200), and the four connecting conversion members (201) of the two supporting units respectively corresponding to the four columns of the bracket; The connection conversion member (201) comprises an I-shaped pad (2010), a cover plate (211) is provided on the top of the I-shaped pad (2010), and the cover plate (2011) is provided with fixing holes (2012) corresponding to the column bolt hole positions of the standard steel structure section (21).

2. The support foundation connection conversion device according to claim 1, characterized in that: The cushion beam (200) is composed of a single I-steel or a combination of multiple I-steels. U-shaped sliding limiters (2013) are provided on both sides of the I-shaped cushion block (2010), and the U-shaped sliding limiters (2013) slide and wrap the flange above the cushion beam (200) therein.

3. The support foundation connection conversion device according to claim 2, characterized in that: Sliding grooves (2000) are provided at both side flanges above the cushion beam (200); The U-shaped sliding limiter (2013) is provided with a locking groove (2014) on the side plate below, and a through hole (2015) is provided on the side plate above. A locking bolt (2018) is inserted into the through hole (2015). The insertion end of the locking bolt (2018) passes through the sliding groove (2000) and the locking groove (2014) in sequence, and a locking nut (219) is threadedly installed. The locking nut (2019) can contact the bottom of the upper flange of the pad beam (200) through the locking groove (2014).

4. The support foundation connection conversion device according to claim 3, characterized in that: The bottom of the U-shaped sliding limiter (2013) is further provided with a support plate (2016) adapted to the side groove of the cushion beam (200), and the support plate (2016) is provided with support reinforcement members (2017) extending to the side at the other three edges except the upper edge.

5. A support foundation connection conversion device according to any one of claims 1 to 4, characterized in that: The cushion beam (200) is composed of two I-steels, and a spacing adjustment mechanism (202) for adjusting the spacing between the two connection conversion members (201) is provided in a cavity connected therebetween.

6. The support foundation connection conversion device according to claim 5, characterized in that: The top of the cavity is provided with a movable groove (2001) connected thereto; The spacing adjustment mechanism (202) includes shaft seats (2020) hoisted at both ends of the cavity, a forward and reverse thread screw (2021) is rotatably arranged between the bearings of the two shaft seats (2020), one end of the forward and reverse thread screw (2021) passes through the shaft seat (2020) and is connected to a rotating hand plate (222), and a connecting plate (2023) passing through the movable groove (2001) is provided at the bottom of the I-shaped pad (2010), and the connecting plate (2023) is sleeved on the corresponding thread of the forward and reverse thread screw (2021) through an internal thread sleeve (2024) provided thereon.

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