CN115075564A - Device suitable for prefabricated wallboard winter stage grout local heating keeps warm of assembled - Google Patents

Device suitable for prefabricated wallboard winter stage grout local heating keeps warm of assembled Download PDF

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Publication number
CN115075564A
CN115075564A CN202210775768.0A CN202210775768A CN115075564A CN 115075564 A CN115075564 A CN 115075564A CN 202210775768 A CN202210775768 A CN 202210775768A CN 115075564 A CN115075564 A CN 115075564A
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CN
China
Prior art keywords
box body
heat preservation
box
winter
grouting
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Granted
Application number
CN202210775768.0A
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Chinese (zh)
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CN115075564B (en
Inventor
吴尉
龙翔
宋学瑀
张颢
吕豪
陈宝其
张敏
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Beijing Urban Construction No7 Engineering Co Ltd
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Beijing Urban Construction No7 Engineering Co Ltd
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Priority to CN202210775768.0A priority Critical patent/CN115075564B/en
Publication of CN115075564A publication Critical patent/CN115075564A/en
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Publication of CN115075564B publication Critical patent/CN115075564B/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/02Selection of the hardening environment
    • C04B40/0263Hardening promoted by a rise in temperature
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/24Safety or protective measures preventing damage to building parts or finishing work during construction
    • E04G21/28Safety or protective measures preventing damage to building parts or finishing work during construction against unfavourable weather influence
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]

Abstract

The application relates to the field of wall body heating heat preservation technology, discloses a device suitable for prefabricated wallboard winter stage grout local heating keeps warm, and it includes for wall body grout position heating heat preservation's heat preservation box, is provided with the heating rod in the heat preservation box, has seted up the opening in one side of heat preservation box. The application has the effect of effectively improving the construction cost of the traditional winter grouting method.

Description

Device suitable for prefabricated wallboard winter stage grout local heating keeps warm of assembled
Technical Field
The utility model relates to a field of wall body heating heat preservation technique especially relates to a device suitable for prefabricated wallboard winter stage grout local heating keeps warm.
Background
The assembly type building is a building form which is commonly used at present, and during the construction of the assembly type building, the grouting connection construction of the assembly type building on a construction site is a key point in the construction.
The traditional winter grouting method adopts a greenhouse method for construction or avoids winter grouting, the greenhouse method is to close all door and window openings and ventilation positions after the integral grouting work of wall columns and laminated slabs is completed, a fan heater is used for continuously heating for more than 24 hours in a closed area range, a large amount of manpower and winter warm-keeping materials need to be input, in addition, in order to continuously keep warm, a large amount of fuel oil needs to be consumed by a diesel fan heater, the construction cost is higher, and the potential safety hazard exists.
Disclosure of Invention
In order to effectively improve the higher problem of construction cost that traditional winter grouting method exists, this application provides a device suitable for prefabricated wallboard winter grouting local heating keeps warm.
The application provides a device suitable for prefabricated wallboard winter grout local heating keeps warm adopts following technical scheme:
the utility model provides a device suitable for prefabricated wallboard winter stage grout local heating keeps warm, includes for wall body grout position heating heat retaining heat preservation box, is provided with the heating rod in the heat preservation box, has seted up the opening in one side of heat preservation box.
By adopting the technical scheme, when the prefabricated wall panel is grouted in the winter period, the opening side of the heat-insulating box faces the grouting part of the prefabricated wall panel, the heating rod is electrified, and the heat emitted by the heating rod is gathered to the grouting part of the prefabricated wall panel under the gathering of the heat-insulating box to heat and preserve heat of concrete mortar poured into the prefabricated wall panel, so that the condensation speed of the concrete mortar is accelerated; the heat preservation box is adopted for local heat preservation and heating, so that a large amount of manpower is not required to be invested, and materials are not required to be used for plugging the door and window hole and the ventilation part in winter, and the construction cost can be effectively saved; the heating rod adopts an electric heating mode, so that the heating rod is safer and more environment-friendly, and meanwhile, the construction cost can be reduced; the heat preservation box and the heating rod can be repeatedly used for many times, and the heat preservation box is easy to transport and can further reduce the construction cost.
Optionally, the heat preservation box comprises a first box body and a second box body arranged in the first box body in a sliding manner, a straight line of the first box body in the length direction is collinear with a straight line of the second box body in the length direction, openings are formed in the same sides of the first box body and the second box body, and the opening of the first box body is communicated with the opening of the second box body;
the end part of the first box body in the length direction is an open end, the second box body can extend out or retract from the open end of the first box body, and the heating rod extends into the second box body.
By adopting the technical scheme, when the width of the prefabricated wallboard is longer, the second box body can be pulled out of the first box body, the overall length of the heat-insulating box is prolonged, the length of the heat-insulating box is matched with that of the prefabricated wallboard better, and a better heat-insulating effect is achieved; the first box body that slides the setting can enlarge the application range of heat preservation box with the second box body, makes the heat preservation box can adapt to the prefabricated wallboard of various widths.
Optionally, a closed door for controlling the opening and closing of the open end of the first box body is arranged at the open end of the first box body;
the end part of the second box body in the length direction is also an open end, and the open end of the second box body is also provided with a closed door for controlling the open end of the second box body to open and close.
By adopting the technical scheme, the sealing door can further improve the heat insulation effect of the heat insulation box, accelerate the solidification speed of concrete mortar and shorten the construction time; when the second box body needs to be pulled out, a worker can open the sealing door, pull the second box body out of the first box body, open the sealing door at one end of the second box body in the first box body, enable the first box body to be communicated with the second box body, and electrify the heating rod to heat and preserve heat of the part, needing grouting, of the prefabricated wallboard.
Optionally, a temperature measuring line for measuring the temperature of the concrete mortar is further arranged in the first heat preservation box, and a detection end of the temperature measuring line penetrates out from the opening sides of the first box body and the second box body.
Through adopting above-mentioned technical scheme, before carrying out heat preservation heating work for the grout position of prefabricated wallboard, according to the width and the construction conditions of prefabricated wallboard, select the temperature measurement line of suitable quantity, the sense terminal of temperature measurement line is worn out the back from the opening side of first box body and second box body, puts into the prefabricated wallboard again to the heat preservation heating condition of better more comprehensive detection concrete mortar.
Optionally, the bottoms of the first box body and the second box body are both open, a support frame is arranged in the second box body, one end of the support frame is fixed on the inner top surface of the second box body, and the height of the support frame is larger than the inner height of the second box body.
Through adopting above-mentioned technical scheme, after the box that keeps warm is placed subaerial, under the effect of support frame, can have the space between box and the ground that keeps warm, the one end that the detection end was kept away from to the temperature measurement line can be worn out from this space to be connected with the outside temperature measuring instrument of box that keeps warm.
Optionally, one side of the closed door is rotatably connected with the box body, and at least one communicating hole is formed in the closed door.
Through adopting above-mentioned technical scheme, when prefabricated wallboard width is longer, when needing to use a plurality of heat preservation boxes, open the closed door of adjacent heat preservation box tip, aim at the intercommunicating pore of adjacent closed door, construction bolt in the intercommunicating pore connects a plurality of heat preservation boxes.
Optionally, a plurality of mounting holes are formed in the box body at intervals along the length direction of the box body, and the heating rod penetrates through the mounting holes and extends into the heat preservation box.
By adopting the technical scheme, no matter the second box body extends out of the first box body or the second box body is hidden in the first box body, the installation holes are formed to ensure that the first box body and the second box body are uniformly distributed on the heating rod, so that the heat distribution in the heat preservation box is more uniform, and the construction quality is effectively improved.
Optionally, a first magnet is arranged on the surface of the second box body closing door departing from the second box body, and a second magnet matched with the first magnet is arranged on the inner surface of the first box body side plate along the length direction of the first box body.
Through adopting above-mentioned technical scheme, take the second box body out the back from first box body, need open the closed door that the second box body is located first box body to first box body and second box body intercommunication dispersion heat, when opening the closed door, rotate the closed door, first magnet and second magnet attraction make the closed door keep the open mode.
Optionally, the sum of the thicknesses of the first magnet and the second magnet is equal to the distance between the first box and the second box.
Through adopting above-mentioned technical scheme, first box body is more steady with being connected of second box body, can be keeping under the state that second box body closing door opened, the staff's operation of being convenient for more is stimulateed to the second box body.
Optionally, the heat preservation box is made of a glass magnesium board.
Through adopting above-mentioned technical scheme, glass magnesium board has high temperature resistant, fire-retardant, intensity is high, tailors good characteristics such as convenient, and when the heating rod heating, the heat preservation box can not take place deformation because of the high temperature in the heat preservation box, can effectively prolong the life of heat preservation box.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the heat preservation box and the heating rod, the heat preservation box is adopted for local heat preservation and heating, a large amount of manpower is not required to be invested, and materials are not required to be used for plugging the door and window hole and the ventilation part in winter, so that the construction cost can be effectively saved;
2. the end part of the first box body in the length direction is an open end, the second box body can stretch out or retract from the open end of the end part of the first box body, the heating rod stretches into the second box body, the first box body and the second box body which are arranged in a sliding manner can enlarge the application range of the heat-insulating box, and the heat-insulating box can be adapted to prefabricated wallboards with various widths
3. Through setting up the closed door, the closed door can further improve the heat preservation effect of heat preservation box for concrete mortar's solidification rate shortens the engineering time.
Drawings
Fig. 1 is a schematic diagram of the use of the present application.
Fig. 2 is a schematic structural diagram of the present application.
Fig. 3 is a partial structural schematic diagram of the present application.
FIG. 4 is a partial schematic view of another embodiment of the present application
Description of the reference numerals: 1. prefabricating a wallboard; 11. grouting a sleeve; 12. a laminated slab; 2. a heat preservation box; 21. a first case; 22. a second box body; 23. a support frame; 231. a first support bar; 232. a second support bar; 233. a third support bar; 24. a guide rail; 25. a closing door; 251. a communicating hole; 26. mounting holes; 27. a first magnet; 28. a second magnet; 3. a heating rod; 4. and (6) a temperature measuring line.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses be applicable to prefabricated wallboard winter stage grout local heating heat retaining device of assembled.
With reference to fig. 1 and 2, the device suitable for winter-stage grouting local heating and heat preservation of the prefabricated wall panel comprises a heat preservation box 2, and a heating rod 3 is arranged in the heat preservation box. The heat preservation box 2 comprises a first box body 21 and a second box body 22 arranged in the box body in a sliding mode, the first box body 21 and the second box body 22 are long plates with L-shaped sections, the opening sides of the first box body 21 and the second box body 22 face towards the same direction, the straight line of the length direction of the first box body 21 is parallel to the straight line of the length direction of the second box body 22, and the second box body 22 is located in the opening of the first box body 21.
Referring to fig. 1 and 2, a guide rail 24 is disposed on the inner top surface of the first container 21 along the length direction of the first container 21, a fixing portion of the guide rail 24 is fixed on the top surface of the first container 21, a sliding portion of the guide rail 24 is fixed on the outer top surface of the second container 22, and the second container 22 can extend out or retract into the first container 21 along the direction of the guide rail 24. A guide rail 24 is also arranged on the inner plate surface of the side plate of the first box body 21 along the length direction of the first box body 21, the fixing part of the guide rail 24 is fixed on the inner plate surface of the side plate of the first box body 21, the sliding part of the guide rail 24 is fixed on the outer plate surface of the side plate of the second box body 22, and the second box body 22 can extend out or retract into the first box body 21 along the direction of the guide rail 24.
With reference to fig. 1 and 2, both ends of the first box 21 and the second box 22 are open, so that the second box 22 can extend out from any one of the two open ends of the first box 21, thereby facilitating the operation and use of the working personnel.
When the grouting operation is carried out in winter, the opening on one side of the length direction of the heat preservation box 2 faces the position of the prefabricated wall board 1 needing grouting, the heating rod 3 is electrified, and under the gathering effect of the heat preservation box 2, the heat generated by the heating rod 3 can be gathered to the position of the prefabricated wall board 1, so that the solidification speed of concrete mortar is accelerated. When the width of prefabricated wallboard 1 is longer, the staff can pull out second box body 22 from first box body 21, and the whole length of extension heat preservation box 2 enlarges the application range of heat preservation box 2.
Combine fig. 1 and fig. 2, through using heat preservation box 2 and heating rod 3, when the grout in winter, need not to seal the door and window entrance to a cave and the ventilative position in big space, can effectively practice thrift construction cost, simultaneously, heat preservation box 2 is small-size, the transportation of being convenient for can relapse repetitious utilization. Adopt heating rod 3 to heat up, compare in diesel oil electric fan heater intensification and practice thrift construction cost more, and heating rod 3 is also safer.
In this embodiment, the lengths of the first box body 21 and the second box body 22 are both 500mm, the first box body 21 and the second box body 22 are both made of a magnesium oxide board with the thickness of 15mm, the magnesium oxide board has excellent characteristics of high temperature resistance, flame retardance, high strength, convenience in cutting and the like, and when the heating rod 3 is heated, the heat of the heating rod 3 can be gathered in the heat preservation box 2 by the heat preservation box 2, and the heat cannot deform along with the rise of the temperature.
With reference to fig. 1 and 2, a supporting frame 23 for supporting the second box 22 is disposed in the second box 22, the supporting frame 23 includes a first supporting rod 231 and a second supporting rod 232, the first supporting rod 231 is vertically disposed, and an axis of the first supporting rod 231 is parallel to a straight line in a height direction of the thermal insulation box 2. Two second support rods 232 are symmetrically arranged at two ends of the first support rod 231, and the axes of the second support rods 232 are perpendicular to the axis of the first support rod 231. The second support rod 232 disposed at the first support rod 231 near the inner top surface of the second container 22 is fixed to the top plate of the second container 22 by screws.
Referring to fig. 1 and 2, the height of the first support rod 231 and the second support rods 232 disposed at both ends of the first support rod 231 is greater than the inner height of the second container 22. When local heat preservation is carried out on the grouting part of the prefabricated wall panel 1, the second supporting rod 232 is supported on the ground, a gap exists between the second box body 22 and the ground, a temperature measuring line 4 is arranged in the second box body 22, and the detection end of the temperature measuring line 4 sequentially passes through the gap and the second box body 22 and penetrates out of the second box body 22 towards the opening of the prefabricated wall panel 1 until the prefabricated wall panel 1 is arranged in the wall body.
Before the grouting part of the prefabricated wall panel 1 is subjected to heat preservation and heating, a worker sets a plurality of temperature measuring lines 4 at intervals in the prefabricated wall panel 1 according to the width and grouting condition of the prefabricated wall panel 1 so as to better and more comprehensively detect the heat preservation and heating condition of the concrete mortar.
Referring to fig. 1 and 2, a third support bar 233 is disposed at a middle position of the first support bar 231 in the length direction, an axis of the third support bar 233 is perpendicular to an axis of the first support bar 231, one end of the third support bar 233 is fixed to the first support bar 231, the other end of the third support bar 233 is provided with a second support bar 232, and an axis of the second support bar 232 is perpendicular to an axis of the third support bar 233. The second support rod 232 arranged on the third support rod 233 is fixed on the side plate of the second box 22 by screws, and the third support rod 233 can strengthen the supporting effect of the first support rod 231 on the heat preservation box 2 and strengthen the use strength of the heat preservation box 2.
First bracing piece 231, second bracing piece 232 to and third bracing piece 233 all adopt the angle steel to make, and convenient for material collection, the low price can effectively reduce the manufacturing cost of heat preservation box 2.
With reference to fig. 3 and 4, a plurality of mounting holes 26 are formed in the side wall of the first box 21 at equal intervals along the length direction of the first box 21, a plurality of mounting holes 26 are also formed in the side wall of the second box 22 at equal intervals along the length direction of the second box 22, and the mounting holes 26 formed in the second box 22 correspond to the mounting holes 26 formed in the first box 21 one by one.
Referring to fig. 2 and 4, the heating rod 3 sequentially passes through the mounting hole 26 formed in the first box 21 and the mounting hole 26 formed in the second box 22, and then extends into the second box 22. When the width of prefabricated wall panel 1 is longer, pull second box 22, stretch out second box 22 from first box 21 in, at the first box 21 with the coincidence section of second box 22, the section that stretches out of second box 22, the individual layer section interval installation of first box 21 a plurality of heating rods 3.
No matter the second box body 22 stretches out first box body 21 or second box body 22 hides in first box body 21, the offering of mounting hole 26 can both guarantee the heating rod 3 evenly distributed of installation on first box body 21 and the second box body 22 to guarantee thermal evenly distributed in whole heat preservation box 2, improve construction quality.
Referring to fig. 3 and 4, a closing door 25 adapted to the open end of the first box 21 is disposed at each of the two open ends of the first box 21 in the length direction, the closing door 25 is rotatably mounted at the end of the side plate of the first box 21, and a plurality of communication holes 251 are disposed on the closing door 25 at equal intervals in the width direction of the closing door 25. When the closing door 25 is rotated, when the plate surface of the closing door 25 is coplanar with the outer plate surface of the side plate of the first box body 21, the connecting line of the centers of the plurality of communication holes 251 is collinear with the connecting line of the centers of the mounting holes 26 on the first box body 21.
Referring to fig. 3 and 4, a closing door 25 adapted to the open end of the second container 22 is also provided at each of the two open ends of the second container 22 in the length direction, the closing door 25 is rotatably installed at the end of the second container 22, and a plurality of communication holes 251 are provided in the closing door 25 at equal intervals in the width direction of the closing door 25. When the closing door 25 is rotated and the plate surface of the closing door 25 is coplanar with the outer plate surface of the side plate of the second container 22, the connecting line of the centers of the plurality of communicating holes 251 is collinear with the connecting line of the centers of the mounting holes 26 of the second container 22.
When 1 width of prefabricated wallboard is longer, needs a plurality of heat preservation box 2 joint work, will close door 25 and rotate to the position department with the same face of first box body 21 curb plate, will be adjacent two heat preservation box 2's the mounting hole 26 of closing door 25 and aim at to use bolted connection.
Referring to fig. 3 and 4, a first magnet 27 is disposed on the surface of the second box 22 facing away from the second box 22, a second magnet 28 attracted to the first magnet 37 is disposed on the inner surface of the side plate of the first box 21, and the second magnet 28 is disposed along the length direction of the first box 21. The sum of the thicknesses of the two magnets is equal to the distance between the first box body 21 and the second box body 22.
When a plurality of heat preservation boxes 2 are required to be connected, or the second box body 22 is pulled out of the first box body 21, the closed door 25 of the second box body 22 can be opened to keep the heat circulation in the whole heat preservation box 2.
This device can check and accept at the wall post and pass through the back, goes on before 12 constructions of superimposed sheet, with the grout construction separation of wallboard and superimposed sheet 12, compare with traditional wallboard and 12 common grouts of superimposed sheet, can effectively reduce the possibility that the wall post takes place to shift the slope after the grout, when reducing follow-up superimposed sheet 12 construction, to the vibrations influence that prefabricated wallboard 1 caused, improve the roughness of wall body.
Meanwhile, the grouting work of the prefabricated wall panel 1 does not need to wait until the construction of the upper laminated slab 12 is completed, and then the large space is sealed, so that the cross operation of the construction of the support frames 23 of the laminated slabs 12 can be reduced, and the construction period is shortened.
The implementation principle of the device suitable for prefabricated wallboard winter stage grout local heating heat preservation of assembled is: after the acceptance work of the wall column is finished, the prefabricated wall board 1 is installed, grouting work is carried out on the prefabricated wall board 1, a temperature measuring line 4 is preset in the prefabricated wall board 1 according to the width and the construction condition of the prefabricated wall board 1 before the grouting work, the detection end of the temperature measuring line 4 is placed in the prefabricated wall board 1, then the open end of one side of the heat preservation box 2 faces the prefabricated wall board 1, and the temperature measuring line 4 penetrates out of a gap formed by the heat preservation box 2 and the ground. According to the width of wallboard, select the heat preservation box 2 of suitable quantity, through concatenation heat preservation box 2 and tensile first box body 21, form complete heat preservation space, heating rod 3 circular telegram keeps warm for 1 grouting area heating of prefabricated wallboard.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a device suitable for prefabricated wallboard winter stage grout local heating keeps warm which characterized in that of assembled: comprises a heat preservation box (2) for heating and preserving heat of a wall grouting part, a heating rod (3) is arranged in the heat preservation box (2), and an opening is arranged on one side of the heat preservation box (2).
2. The device suitable for the prefabricated wallboard winter grouting local heating heat preservation of claim 1, characterized in that: the heat preservation box (2) comprises a first box body (21) and a second box body (22) arranged in the first box body (21) in a sliding mode, the straight line of the length direction of the first box body (21) is collinear with the straight line of the length direction of the second box body (22), openings are formed in the same sides of the first box body (21) and the second box body (22), and the openings of the first box body (21) are communicated with the openings of the second box body (22);
the end part of the first box body (21) in the length direction is an open end, the second box body (22) can extend out of or retract from the open end of the first box body (21), and the heating rod (3) extends into the second box body (22).
3. The device suitable for the prefabricated wallboard winter grouting local heating heat preservation of claim 2, characterized in that: a closed door (25) for controlling the open end of the first box body (21) to open and close is arranged at the open end of the first box body (21);
the end part of the second box body (22) in the length direction is also an open end, and the open end of the second box body (22) is also provided with a closed door (25) for controlling the open end of the second box body (22) to open and close.
4. The device suitable for the prefabricated wallboard winter grouting local heating heat preservation of claim 1, characterized in that: a temperature measuring line (4) for measuring the temperature of the concrete mortar is further arranged in the first heat preservation box (2), and the detection end of the temperature measuring line (4) penetrates out from the opening sides of the first box body (21) and the second box body (22).
5. The device suitable for prefabricated wallboard winter grouting local heating heat preservation of claim 4, characterized in that: the bottom of first box body (21) and second box body (22) is uncovered, is provided with support frame (23) in second box body (22), and the one end of support frame (23) is fixed on the interior top surface of second box body (22), and the height of support frame (23) is greater than the interior height of second box body (22).
6. The device suitable for prefabricated wallboard winter grouting local heating heat preservation of claim 3, characterized in that: one end of the closed door (25) is rotatably connected with the box body, and at least one communicating hole (251) is formed in the closed door (25).
7. The device suitable for prefabricated wallboard winter grouting local heating heat preservation of claim 6, characterized in that: a plurality of mounting holes (26) are formed at intervals along the length direction of the box body, and the heating rod (3) penetrates through the mounting holes (26) and extends into the heat preservation box (2).
8. The device suitable for prefabricated wallboard winter grouting local heating heat preservation of claim 6, characterized in that: a first magnet (27) is arranged on the surface of the closed door (25) of the second box body (22) departing from the second box body (22), and a second magnet (28) matched with the first magnet (27) is arranged on the inner surface of the side plate of the first box body (21) along the length direction of the first box body (21).
9. The device suitable for prefabricated wallboard winter grouting local heating heat preservation of claim 8, characterized in that: the sum of the thicknesses of the first magnet (27) and the second magnet (28) is equal to the distance between the first box (21) and the second box (22).
10. The device for winter grouting local heating and heat preservation of prefabricated wall panel (1) according to claim 1, characterized in that: the heat preservation box (2) is made of a glass magnesium board.
CN202210775768.0A 2022-07-01 2022-07-01 Device suitable for prefabricated wallboard winter stage grout local heating keeps warm of assembled Active CN115075564B (en)

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CN202210775768.0A CN115075564B (en) 2022-07-01 2022-07-01 Device suitable for prefabricated wallboard winter stage grout local heating keeps warm of assembled

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CN215054589U (en) * 2021-04-21 2021-12-07 徐州力山建设工程有限公司 Low-temperature sleeve grouting protection structure
CN215631092U (en) * 2021-07-28 2022-01-25 河南省第一建筑工程集团有限责任公司 Prefabricated assembled vertical component grouting structure under low temperature environment
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