Thermal insulation device for bridge 0 # block construction

Abstract

The utility model discloses a heat preservation device for bridge 0 # block construction. The heat preservation device comprises a temporary anchoring structure, a heat preservation structure, a steam generator, a hot air cannon and a power generator. The temporary anchoring structure is used for supporting the insulation structure. The heat preservation structure comprises a bottom plate, a truss, a plurality of heat preservation side plates, a heat preservation shed roof and fastening devices, the bottom plate is arranged on the outer side of a bridge pier (7) of the cable-stayed bridge in a sleeving mode and is horizontally arranged, the bottom plate is detachably connected with the temporary anchoring structure, the truss is detachably connected to the bottom plate, and the heat preservation side plates and the heat preservation shed roof are detachably connected and fixed to the truss through the fastening devices. A closed space is formed by the multiple heat preservation side plates and the heat preservation ceiling to cover the upper end of a cable-stayed bridge pier (7). The thermal insulation structure is arranged to seal the construction area of the No.0 block, the steam generator and the hot air cannon are arranged to adjust the temperature of the space in the thermal insulation structure, the temperature of construction materials is controlled at a proper temperature, and the construction progress and quality are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a heat preservation device for the construction of No. 0 bridge blocks. Background Art

[0002] The construction of Block 0 of the low-tower cable-stayed bridge will be affected by the low temperature in winter. Under long-term low temperature conditions, the temperature changes of concrete and structural materials will have an adverse effect on their performance, including slow solidification, reduced strength, easy cracking and other problems. In order to ensure the progress and quality of construction, it is necessary to design a thermal insulation device to maintain the appropriate temperature of the construction materials. Utility Model Content

[0003] The utility model provides a heat preservation device for the construction of No. 0 bridge block to solve the above technical problems.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A thermal insulation device for the construction of bridge block No. 0 comprises: a temporary anchoring structure, a thermal insulation structure, a steam generator, a hot air gun and a generator.

[0006] Temporary anchoring structures are used to support the insulation structure.

[0007] The insulation structure includes: a bottom plate, a truss, a plurality of insulation side plates, an insulation roof and fastening devices. The bottom plate is sleeved on the outside of the piers of the cable-stayed bridge and is arranged horizontally. The bottom plate is detachably connected to the temporary anchoring structure. The truss is detachably connected to the bottom plate. The insulation side plates and the insulation roof are detachably fixed to the truss through fastening devices. The plurality of insulation side plates, the insulation roof and the bottom plate form a closed space to cover the upper ends of the piers of the cable-stayed bridge.

[0008] The steam generator and the hot air gun are arranged in a closed space, and the generator provides power for the steam generator and the hot air gun.

[0009] Furthermore, the fastening device includes a fixing clamp and a sleeve; the fixing clamp includes: a screw, a first elastic member and a first clamping plate, the screw is vertical and passes through the first clamping plate, the first elastic member is located on one side of the first clamping plate along the axis direction of the screw, and the first elastic member has a tendency to hinder the movement of the first clamping plate along the axis direction of the screw.

[0010] The sleeve includes: a sleeve, a second elastic member and a second clamping plate. The sleeve is provided with an internal thread matching the screw rod. The sleeve is vertical and passes through the second clamping plate. The second elastic member is located on one side of the second clamping plate along the screw-in direction of the sleeve. The second elastic member has a tendency to hinder the movement of the second clamping plate along the axial direction of the sleeve.

[0011] Furthermore, the first elastic member is in an arc shape, the screw is arranged along the radial direction of the first elastic member, both ends of the first elastic member are fixed on the first clamping plate, and the arc portion of the first elastic member is connected to the screw through the first connecting assembly.

[0012] The second elastic member is in an arc shape, the sleeve is arranged along the radial direction of the second elastic member, both ends of the second elastic member are fixed on the second clamping plate, and the arc portion of the second elastic member is connected to the sleeve through a second connecting assembly.

[0013] Furthermore, the first connecting assembly includes a first connecting rod and a first limiting plate, one end of the first connecting rod is fixed on the first limiting plate, and the other end passes through the middle of the arc portion of the first elastic member and is fixed on the screw rod, and the first connecting rod is fixedly connected to the first elastic member.

[0014] The second connecting assembly includes a second connecting rod and a second limiting plate. One end of the second connecting rod is fixed on the second limiting plate, and the other end passes through the middle of the arc portion of the second elastic member and is fixed on the sleeve. The second connecting rod is fixedly connected to the second elastic member.

[0015] Furthermore, the screw rod passes through the middle of the first clamping plate, and the sleeve passes through the middle of the second clamping plate.

[0016] Furthermore, the bottom plate is made of flame retardant material.

[0017] Furthermore, a cable trough is provided on the bottom plate, and the cable trough is used for routing cables of the steam generator, hot air gun and generator.

[0018] Furthermore, guardrails are arranged around the base plate, and the guardrails are detachably connected to the base plate.

[0019] Furthermore, a thermometer is provided on the truss, and the thermometer is detachably connected to the truss.

[0020] Furthermore, rock wool blankets are used for the insulation side panels and the insulation roof.

[0021] Beneficial effects:

[0022] The present application discloses an insulation device for the construction of bridge block No. 0, which encloses the construction area of ​​block No. 0 by setting up an insulation structure, and sets up a steam generator and a hot air cannon to adjust the temperature of the space within the insulation structure, thereby controlling the temperature of the construction materials at an appropriate temperature and ensuring the construction progress and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 This is a structural schematic diagram of a bridge block No. 0 construction structure disclosed in Example 1 of the utility model;

[0025] Figure 2 It is a schematic diagram of the arrangement of a steam generator, a hot air gun and a generator on a bottom plate of a No. 0 bridge block construction structure disclosed in the utility model;

[0026] Figure 3 This is a structural schematic diagram of a heat insulation structure of a No. 0 bridge construction structure disclosed in the utility model;

[0027] Figure 4 This is a structural schematic diagram of a bridge No. 0 block construction structure fastener disclosed by the utility model;

[0028] Figure 5 It is a structural schematic diagram of a temporary anchoring structure of a No. 0 bridge construction structure disclosed in the utility model;

[0029] Figure 6 for Figure 5 Sectional view of AA in the middle;

[0030] Figure 7 This is a structural schematic diagram of a quick-disassembly assembly of a No. 0 bridge construction structure disclosed in the utility model;

[0031] Figure 8 The utility model discloses an assembly diagram of a lower support, a fixing hook and a connecting beam of a bridge No. 0 block construction structure.

[0032] 11. Pipe pile; 12. Upper support; 13. Lower support; 131. Fixing hook; 132. Connecting beam; 14. Crossbar; 151. First locking block; 1511. Positioning groove; 152. Second locking block; 1521. Positioning block; 153. Fastener;

[0033] 21. Bottom plate; 211. Wire trough; 212. Guardrail; 22. Truss; 23. Insulation side plate; 24. Insulation roof; 251. Screw; 252. First elastic member; 253. First clamping plate; 254. First connecting rod; 255. First stop plate; 261. Casing; 262. Second elastic member; 263. Second clamping plate; 264. Second connecting rod; 265. Second stop plate; 27. Fastening rope;

[0034] 3. Steam generator; 4. Hot air cannon; 5. Generator; 6. Thermometer; 7. Bridge pier. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Example 1

[0037] A bridge block 0 construction structure, combined with Figure 1 , Figure 2 and Figure 3 As shown, it includes: a temporary anchoring structure, an insulation structure, a steam generator 3, a hot air cannon 4 and a generator 5; the temporary anchoring structure is used to support the insulation structure; the insulation structure includes: a bottom plate 21, a truss 22, a plurality of insulation side plates 23, an insulation roof 24 and a fastener, the bottom plate 21 is sleeved on the outside of the pier 7 of the cable-stayed bridge and is arranged horizontally, the bottom plate 21 is detachably connected to the temporary anchoring structure, the truss 22 is detachably connected to the bottom plate 21, the insulation side plates 23 and the insulation roof 24 are detachably fixed to the truss 22 by fasteners, and the plurality of insulation side plates 23, the insulation roof 24 and the bottom plate 21 form a closed space to cover the upper end of the pier 7 of the cable-stayed bridge; the steam generator 3 and the hot air cannon 4 are arranged in the closed space, and the generator 5 supplies power to the steam generator 3 and the hot air cannon 4. The temporary anchoring structure supports and fixes the bottom plate 21, and the insulation side plate 23 is fixed to the truss 22 by fasteners, and the insulation roof 24 is fixed to the top of the truss 22 by fasteners. The closed space surrounded by the bottom plate 21, the insulation side plate 23 and the insulation roof 24 accommodates the construction area of ​​the No. 0 block at the upper end of the pier 7 and achieves the insulation effect. The steam generator 3 and the hot air gun 4 are powered by the generator, and the construction personnel operate the steam generator 3 and the hot air gun 4 to adjust the temperature in the closed space, and control the temperature of the construction materials at an appropriate temperature, so that the No. 0 block can be constructed even when the external ambient temperature is low, ensuring the construction progress and quality of the project.

[0038] Preferably, combined Figure 1 , Figure 3 and Figure 4As shown, the fastener includes a fixing clamp and a sleeve, and the fixing clamp and the sleeve cooperate to fix the insulation side plate 23 and the insulation roof 24 on the truss 22. The fixing clamp includes: a screw 251, a first elastic member 252 and a first clamping plate 253. The screw 251 is perpendicular to and passes through the first clamping plate 253. The first elastic member 252 is located on one side of the first clamping plate 253 along the axis direction of the screw 251. The first elastic member 252 has a tendency to hinder the first clamping plate 253 from moving along the axis direction of the screw 251. The sleeve includes: a sleeve 261, a second elastic member 262 and a second clamping plate 263. The sleeve 261 is provided with an internal thread that matches the screw 251. The sleeve 261 is perpendicular to and passes through the second clamping plate 263. The second elastic member 262 is located on one side of the second clamping plate 263 along the screw-in direction of the sleeve 261. The second elastic member 262 has a tendency to hinder the second clamping plate 263 from moving along the axis direction of the sleeve 261. Taking the fixing of the heat-insulating side panel 23 as an example, a plurality of first through holes are provided on the truss 22, and the screw rod 251 is passed through the heat-insulating side panel 23 and the first through holes in sequence and then screwed into the sleeve 261. When the screw rod 251 is screwed into a certain position, the first clamping plate 253 and the second clamping plate 263 respectively abut against the heat-insulating side panel 23 from both sides. The arrangement of the first elastic member 252 and the second elastic member 262 enables the screw rod 251 to be further screwed in, and the heat-insulating side panel 23 deforms the first elastic member 252 through the first clamping plate 253 and the second elastic member 262 through the second clamping plate 263. The elastic force generated by the first elastic member 252 and the second elastic member 262 acts on the first clamping plate 253 and the second clamping plate 263, thereby clamping the heat-insulating side panel 23.

[0039] Preferably, the first elastic member 252 is in an excellent arc shape, the screw 251 is arranged along the radial direction of the first elastic member 252, both ends of the first elastic member 252 are fixed on the first clamping plate 253, and the arc portion of the first elastic member 252 is connected to the screw 251 through a first connecting assembly. The second elastic member 262 is in an excellent arc shape, the sleeve 261 is arranged along the radial direction of the second elastic member 262, both ends of the second elastic member 262 are fixed on the second clamping plate 263, and the arc portion of the second elastic member 262 is connected to the sleeve 261 through a second connecting assembly. The excellent arc-shaped first elastic member 252 and the second elastic member 262 facilitate manual screwing of the screw 251 and the sleeve 261.

[0040] Specifically, the first elastic member 252 and the second elastic member 262 are made of spring steel, and the arc shape enables the first elastic member 252 and the second elastic member 262 to have good elasticity. The first elastic member 252 and the first clamping plate 253 can be fixed by welding, and the second elastic member 262 and the second clamping plate 263 can be fixed by welding.

[0041] Preferably, the first connecting assembly includes a first connecting rod 254 and a first limiting plate 255, one end of the first connecting rod 254 is fixed on the first limiting plate 255, and the other end passes through the middle of the arc-shaped portion of the first elastic member 252 and is fixed on the screw 251, and the first connecting rod 254 is fixedly connected to the first elastic member 252. The second connecting assembly includes a second connecting rod 264 and a second limiting plate 265, one end of the second connecting rod 264 is fixed on the second limiting plate 265, and the other end passes through the middle of the arc-shaped portion of the second elastic member 262 and is fixed on the sleeve 261, and the second connecting rod 264 is fixedly connected to the second elastic member 262. Due to the long diameter of the arc-shaped portion, a longer screw 251 and sleeve 261 are required, but in fact the extra length has no effect on the cooperation between the screw 251 and the sleeve 261, resulting in a waste of materials. In addition, the force-bearing surface of the arc-shaped portion is small, which is not conducive to direct connection with the screw 251 and the sleeve 261. The first connecting rod 254 and the second connecting rod 264 are added to play a transition role, and the first limiting plate 255 and the second limiting plate 265 are used to bear force and limit position.

[0042] Specifically, the first connecting rod 254 is coaxially arranged with the screw rod 251, and the first connecting rod 254 is perpendicular to the first limiting plate 255, so that the first elastic member 252 can be more evenly contacted with the first limiting plate 255 after being stressed, thereby avoiding uneven stress on the first clamping plate 253. The first connecting rod 254 is fixed to the first limiting plate 255 and the first elastic member 252 by welding, and the first connecting rod 254 is fixed to the screw rod 251 by welding. The second connecting assembly has the same structure as the first connecting assembly, and will not be described in detail here.

[0043] Preferably, the screw 251 passes through the middle of the first clamping plate 253, and the sleeve 261 passes through the middle of the second clamping plate 263, so that the insulation side plates 23 or the insulation roof 24 located around the screw 251 can be evenly compressed to achieve reliable fixation.

[0044] Specifically, the truss 22 is fixed on the base plate 21 by first bolts and nuts, and the heat preservation roof 24 and the truss 22 are also provided with fastening ropes 27, which tighten the heat preservation roof 24 on the truss 22 to prevent the heat preservation roof 24 from being blown away by strong winds.

[0045] Preferably, the bottom plate 21 is made of flame-retardant material, and specifically can be a flame-retardant color steel plate to ensure safety.

[0046] Specifically, the steam generator 3, the hot air cannon 4 and the generator 5 are fixed on the bottom plate 21 by second bolts and nuts. There are multiple steam generators 3 and hot air cannons 4, which are alternately arranged around the bridge pier 7 to ensure uniform temperature at different positions in the closed space.

[0047] Preferably, a wire groove 211 is provided on the bottom plate 21 , and the wire groove 211 is used for routing cables of the steam generator 3 , the hot air cannon 4 and the generator 5 .

[0048] Preferably, guardrails 212 are provided around the bottom plate 21 to protect the safety of construction workers. The guardrails 212 are detachably connected to the bottom plate 21 through third bolts and nuts to facilitate disassembly and assembly.

[0049] Preferably, a thermometer 6 is provided on the truss 22, and the thermometer 6 is used to monitor the temperature inside the block 0 in real time. The thermometer 6 and the truss 22 are detachably connected via a fourth bolt and nut.

[0050] Preferably, the insulation side panels 23 and the insulation roof 24 can be insulated with rock wool blankets.

[0051] Preferably, combined Figure 1 , Figure 5 and Figure 6 As shown, the temporary anchoring structure is used to support the bottom plate 21. The temporary anchoring structure includes multiple groups of support components, and the support components include: pipe piles 11, upper supports 12, lower supports 13 and cross bars 14; multiple pipe piles 11 of the multiple groups of support components are arranged around the piers 7 of the low-tower cable-stayed bridge, and the bottom plate 21 falls on the upper end surface of the pipe piles 11, the upper supports 12 are detachably connected to the pipe piles 11 and the bottom plate 21, the lower supports 13 are detachably connected to the ground and the pipe piles 11, and the cross bars 14 are located between the pipe piles 11 and the piers 7. The two ends of the cross bars 14 are respectively connected to the pipe piles 11 and the piers 7 through quick-release components. The temporary anchoring structure is provided with detachably connected support components, which can realize rapid disassembly and assembly, simplify the construction steps of the temporary anchoring structure, improve construction efficiency, and ensure the stability of the bottom plate 21.

[0052] Preferably, combined Figure 5 , Figure 6 and Figure 7As shown, the quick release assembly includes: a first locking block 151, a second locking block 152 and a fastener 153. The first locking block 151 is fixed on the cross bar 14, and the second locking block 152 is fixed on the structure to be connected, or the first locking block 151 is fixed on the structure to be connected, and the second locking block 152 is fixed on the cross bar 14. There are two first locking blocks 151 and they are arranged opposite to each other. The second locking block 152 can be inserted between the two first locking blocks 151. A positioning groove 1511 is provided on the surface of the first locking block 151 facing the second locking block 152. A positioning block 1521 is fixed on the surface of the second locking block 152 facing the first locking block 151. The positioning block 1521 is inserted into the positioning groove 1511 for positioning; the fastener 153 locks the first locking block 151 and the second locking block 152. Insert the second locking block 152 between the two first locking blocks 151, and insert the positioning block 1521 into the positioning groove 1511 to realize the positioning of the first locking block 151 and the second locking block 152, and prevent the first locking block 151 and the second locking block 152 from rotating relative to each other; then install the fastener 153 to lock the first locking block 151 and the second locking block 152.

[0053] Preferably, the fastener 153 includes a fastening bolt and a fastening nut. The fastening bolt passes through the two first locking blocks 151 and the second locking block 152 and is fastened with the fastening nut to fix the first locking block 151 and the second locking block 152.

[0054] Preferably, the positioning groove 1511 is arranged perpendicular to the axis of the cross bar 14, and the positioning groove 1511 positions the positioning block 1521, thereby limiting the relative movement of the first locking block 151 and the second locking block 152 along the axis direction of the cross bar 14, thereby limiting the movement of the cross bar 14 along its axial direction, preventing the pipe pile 11 from shifting, and ensuring the stability of the base plate 21.

[0055] Preferably, the first locking block 151 and the second locking block 152 are arranged in the vertical direction, so as to adjust the possible height error between the second locking block 152 on the pile 11 and the second locking block 152 on the pier 7 by sliding the positioning block 1521 in the positioning groove 1511.

[0056] Specifically, the first locking block 151 is fixed on the cross bar 14, and the second locking block 152 is fixed on the pipe pile 11 and the bridge pier 7. The first steel bars are pre-embedded on both end surfaces of the cross bar 14, and the first locking block 151 is welded and fixed to the ends of the first steel bars. The second steel bars are pre-embedded on the pipe pile 11 and the bridge pier 7, and the second locking block 152 is welded and fixed to the ends of the second steel bars. A second through hole is opened in the middle of the first locking block 151, and a third through hole is opened in the middle of the second locking block 152. Align the first locking blocks 151 at both ends of the crossbar 14 with the second locking blocks 152 on the pipe pile 11 and the bridge pier 7, respectively, slide the positioning blocks 1521 into the positioning grooves 1511, keep the crossbar 14 horizontal, and adjust the height of the crossbar 14 by relative sliding of the positioning blocks 1521 and the positioning grooves 1511, so that the second through hole corresponds to the third through hole, and tighten the fastening bolts through the second through hole and the third through hole in turn with the fastening nuts, fix the first locking blocks 151 and the second locking blocks 152 together, and complete the installation of the crossbar 14. When disassembling, remove the fastening bolts and fastening nuts and then slide to disassemble the crossbar 14.

[0057] Preferably, combined Figure 5 , Figure 6 and Figure 8 As shown, the lower end of the lower support 13 is provided with a fixing hook 131, which is pre-buried in the lower support 13 to achieve fixation, and the fixing hook 131 is inserted into the ground to ensure the stability of the lower support 13; the outer wall of the pipe pile 11 is provided with a support groove, and the upper end of the lower support 13 cooperates with the support groove, and the upper end of the lower support 13 is inserted into the support groove to achieve the support of the pipe pile 11 by the lower support 13. Since the installation of the lower support 13 only requires the fixing hook 131 to be inserted into the ground and the upper end to be inserted into the support groove, the installation operation is simplified, so the installation time can be saved.

[0058] Specifically, the lower support 13 is in an inclined rod shape, the bottom end of the lower support 13 is in a disc shape, and there is an angle between the center line of the lower support 13 and the bottom end of the lower support 13, so that the bottom end of the lower support 13 remains horizontal, thereby increasing the pressure-bearing area of ​​the lower support 13 and improving the support effect. The fixing hook 131 is arranged perpendicular to the bottom end of the lower support 13, so that the fixing hook 131 can be embedded in the ground.

[0059] Specifically, there are multiple lower supports 13 , and the multiple lower supports 13 are evenly arranged around the pipe pile 11 , so as to enhance the support of the lower supports 13 for the pipe pile 11 and improve the stability of the pipe pile 11 .

[0060] Preferably, there are multiple fixing hooks 131 , which are arranged side by side, and a connecting beam 132 is fixed between two adjacent fixing hooks 131 . The connecting beam 132 and the fixing hooks 131 are fixed by welding to improve the rigidity of the fixing hooks 131 .

[0061] Preferably, the lower part of the fixing hook 131 is provided with a first earth-breaking blade, the cross section of the first earth-breaking blade is an isosceles triangle, and the sharp corner of the isosceles triangle is set downward; the lower part of the connecting beam 132 is provided with a second earth-breaking blade, the cross section of the second earth-breaking blade is also an isosceles triangle, and the sharp corner of the isosceles triangle is set downward; the first earth-breaking blade and the second earth-breaking blade can facilitate earth-breaking, which is conducive to the insertion of the fixing hook 131 and the connecting beam 132 into the ground. The soil above the connecting beam 132 can prevent the connecting beam 132 from being pulled out upward, which is conducive to improving the stability of the lower support 13; when disassembling, the fixing hook 131 can be pulled out after the soil above the connecting beam 132 is cleared.

[0062] Specifically, embedded bolts are embedded in the pipe pile 11, and an end surface connection plate matching the embedded bolts is welded to the lower end of the upper support 12. The end surface connection plate is locked and fixed to the embedded bolts by locking nuts, so that the upper support 12 is fixedly installed on the pipe pile 11. The upper end of the upper support 12 is fixed to the bottom plate 21 by a fifth bolt and nut.

[0063] Example 2

[0064] This embodiment provides a construction method for a bridge block 0 construction structure, comprising the following steps:

[0065] S1 Assemble temporary anchoring structure:

[0066] S11 First, the second steel bar is embedded when the concrete is poured in the bridge pier, the second steel bar and the embedded bolts are embedded and the support groove is reserved when the pipe pile is manufactured, the first steel bar is embedded when the cross bar is manufactured, and the fixing hook is embedded when the lower support is manufactured.

[0067] S12: Secondly, the first locking block is welded to the first steel bar, and the second locking block is welded to the second steel bar.

[0068] S13 Then, the pipe piles are first erected around the bridge piers, and the upper end of the lower support is inserted into the support groove, so that the fixing hook is kept vertically arranged, and then pressure is applied to the pipe piles so that the bottom of the pipe piles and the fixing hooks of the lower support are driven into the ground, and the lower support supports the pipe piles.

[0069] S14 Then, align the positioning groove with the positioning block, adjust the height of the two ends of the cross bar to keep the cross bar horizontal, so as to adjust the height error of the second locking block on the pipe pile and the second locking block on the pier; fix the first locking block and the second locking block with fastening bolts and fastening nuts to fix the cross bar to the pipe pile and the pier respectively.

[0070] S15Finally, the locking nut and the embedded bolts are used to fix the upper support on the pipe pile.

[0071] S2 installation insulation structure:

[0072] S21 First, install the base plate on the temporary anchoring structure, that is, place the base plate on the pipe piles and fix the base plate to the upper support with the fifth bolts and nuts.

[0073] S22 Secondly, install the truss on the bottom plate, lift the truss to the bottom plate with a crane, and fix the truss to the bottom plate with the first bolts and nuts.

[0074] S23 Then, the insulation roof is installed through the fastener, and the insulation roof is lifted to the top of the truss by a crane, so that the screw of the fastener passes through the insulation roof and the truss and is screwed into the sleeve to fix the insulation roof and the truss, and the fastening rope is tied to the insulation roof and the truss.

[0075] S24 Finally, the insulation side panels are hoisted to the sides of the trusses by a crane, and the insulation side panels are installed by fasteners.

[0076] S3 has steam generators and hot air guns installed on the baseplate, and the generator is also installed on the baseplate to reduce wiring.

[0077] S4 connects the steam generator and hot air cannon to the generator through cable troughs. After installation, the construction workers start the generator and control the operation of the steam generator and hot air cannon according to the detection value of the thermometer.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A heat preservation device for the construction of bridge block 0, characterized in that: include: Temporary anchoring structure, thermal insulation structure, steam generator (3), hot air gun (4) and generator (5); The temporary anchoring structure is used to support the thermal insulation structure; The insulation structure comprises: a bottom plate (21), a truss (22), a plurality of insulation side plates (23), an insulation roof (24) and a fastening device, wherein the bottom plate (21) is sleeved on the outside of the pier (7) of the cable-stayed bridge and is arranged horizontally, the bottom plate (21) is detachably connected to the temporary anchoring structure, the truss (22) is detachably connected to the bottom plate (21), the insulation side plates (23) and the insulation roof (24) are both detachably connected to the truss (22) by the fastening device, and the plurality of insulation side plates (23), the insulation roof (24) and the bottom plate (21) form a closed space to cover the upper end of the pier (7) of the cable-stayed bridge; The steam generator (3) and the hot air cannon (4) are arranged in the closed space, and the generator (5) supplies power to the steam generator (3) and the hot air cannon (4).

2. The heat preservation device for the construction of bridge block 0 according to claim 1 is characterized in that: The fastening device comprises a fixing clamp and a sleeve; the fixing clamp comprises: a screw rod (251), a first elastic member (252) and a first clamping plate (253); the screw rod (251) is vertical and passes through the first clamping plate (253); the first elastic member (252) is located on one side of the first clamping plate (253) along the axial direction of the screw rod (251); the first elastic member (252) has a tendency to hinder the first clamping plate (253) from moving along the axial direction of the screw rod (251); The sleeve comprises: a sleeve (261), a second elastic member (262) and a second clamping plate (263); the sleeve (261) is provided with an internal thread matching the screw rod (251); the sleeve (261) is perpendicular to and passes through the second clamping plate (263); the second elastic member (262) is located on one side of the second clamping plate (263) along the screwing direction of the sleeve (261); the second elastic member (262) has a tendency to hinder the second clamping plate (263) from moving along the axial direction of the sleeve (261).

3. The heat preservation device for the construction of bridge block No. 0 according to claim 2 is characterized in that: The shape of the first elastic member (252) is an arc shape, the screw rod (251) is arranged along the radial direction of the first elastic member (252), both ends of the first elastic member (252) are fixed on the first clamping plate (253), and the arc-shaped part of the first elastic member (252) is connected to the screw rod (251) through a first connecting assembly; The second elastic member (262) is in the shape of an arc, the sleeve (261) is arranged along the radial direction of the second elastic member (262), both ends of the second elastic member (262) are fixed on the second clamping plate (263), and the arc portion of the second elastic member (262) is connected to the sleeve (261) via a second connecting assembly.

4. The heat preservation device for the construction of bridge block No. 0 according to claim 3 is characterized in that: The first connecting assembly comprises a first connecting rod (254) and a first limiting plate (255); one end of the first connecting rod (254) is fixedly mounted on the first limiting plate (255), and the other end of the first connecting rod (254) passes through the middle of the arc-shaped portion of the first elastic member (252) and is fixedly mounted on the screw rod (251); the first connecting rod (254) is fixedly connected to the first elastic member (252); The second connecting assembly comprises a second connecting rod (264) and a second limiting plate (265); one end of the second connecting rod (264) is fixedly mounted on the second limiting plate (265); the other end of the second connecting rod (264) passes through the middle of the arc-shaped portion of the second elastic member (262) and is fixedly mounted on the sleeve (261); the second connecting rod (264) is fixedly connected to the second elastic member (262).

5. The heat preservation device for the construction of bridge block No. 0 according to claim 2 is characterized in that: The screw rod (251) passes through the middle of the first clamping plate (253), and the sleeve (261) passes through the middle of the second clamping plate (263).

6. The heat preservation device for the construction of bridge block No. 0 according to claim 1 is characterized in that: The bottom plate (21) is made of flame-retardant material.

7. The heat preservation device for the construction of bridge block No. 0 according to claim 1 is characterized in that: A wire trough (211) is provided on the bottom plate (21), and the wire trough (211) is used for routing cables of the steam generator (3), the hot air cannon (4) and the generator (5).

8. The heat preservation device for the construction of bridge block No. 0 according to claim 1 is characterized in that: Guardrails (212) are arranged around the bottom plate (21), and the guardrails (212) are detachably connected to the bottom plate (21).

9. The heat preservation device for the construction of bridge block No. 0 according to claim 1 is characterized in that: The truss (22) is provided with a temperature measuring instrument (6), and the temperature measuring instrument (6) is detachably connected to the truss (22).

10. The heat preservation device for the construction of bridge block 0 according to claim 1, characterized in that: The heat-insulating side panels (23) and the heat-insulating roof (24) are made of rock wool blankets.

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