A heat preservation device for grouting prefabricated columns in winter

Abstract

The present invention belongs to the technical field of prefabricated column construction, and in particular, relates to an insulation device for grouting prefabricated columns in winter, comprising: an insulation component wrapped around the outside of the grouting area of ​​the prefabricated column, the insulation component comprising two spliced ​​and fixed insulation parts; the insulation part comprises a wood plywood, a reflective film and an extruded polystyrene board fixedly arranged in sequence from the outside to the inside; the wood plywood of the two insulation parts is fixed by a fixing part; a temperature regulating part is provided between the extruded polystyrene board and the grouting area of ​​the prefabricated column; a temperature sensing part is provided in the injection hole of the grouting area of ​​the prefabricated column, and the temperature sensing part is electrically connected to the temperature regulating part. The device adjusts the heating temperature according to the actual situation through the temperature regulating part, can effectively maintain the temperature of the grouting area of ​​the prefabricated column, reduce the temperature stress of the grouting material caused by temperature changes, prevent cracks and peeling of the grouting layer, ensure the integrity and durability of the grouting layer, and improve the grouting quality.

Description

Technical Field

[0001] The present invention belongs to the technical field of precast column construction, and particularly relates to a heat preservation device for precast column grouting in winter. Background Art

[0002] In recent years, precast and assembled buildings, as a new type of green, environmental protection and energy-saving building form, have been widely promoted across the country. As one of the important components of precast and assembled buildings, the reliability and efficiency of the connection method of precast columns are crucial for ensuring the overall building quality and performance. As an advanced connection method, the precast column grouting connection technology has the characteristics of high construction efficiency, reliable connection quality, strong adaptability, etc., and has been widely used in modern construction projects.

[0003] However, the problem with precast column grouting connection is that if the heat preservation measures are not in place during winter construction, it will directly affect the technical performance of the grouting material and pose a hidden danger to the project. Therefore, during winter construction, the heat preservation measures for precast column grouting are an important link to ensure that the grouting material reaches the best performance and to guarantee the structural strength and durability of precast columns. Therefore, we propose a heat preservation device for precast column grouting in winter. Summary of the Invention

[0004] The purpose of the present invention is to provide a heat preservation device for precast column grouting in winter to solve the above problems.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] A heat preservation device for precast column grouting in winter, comprising: a heat preservation component wrapped outside the precast column grouting area, and the heat preservation component includes two spliced and fixed heat preservation parts;

[0007] The heat preservation part includes a plywood, a reflective film and an extruded polystyrene board which are fixedly arranged in sequence from outside to inside;

[0008] The plywoods between the two heat preservation parts are fixed through a fixing part;

[0009] A temperature adjustment part is arranged between the extruded polystyrene board and the precast column grouting area;

[0010] A temperature sensing part is arranged in the perfusion hole of the precast column grouting area, and the temperature sensing part is electrically connected to the temperature adjustment part.

[0011] Optionally, the plywood is of a C-shaped structure.

[0012] Optionally, the plywood, the reflective film and the extruded polystyrene board are bonded through glue.

[0013] Optionally, the fixing portion includes a plurality of buckles, the male buckle of the buckle is fixed at the joint seam of one of the wood plywood boards, the female buckle of the buckle is fixed at the joint seam of another of the wood plywood boards, and the male buckle and the female buckle of the buckle are detachably connected.

[0014] Optionally, the thickness of the extruded polystyrene board is not less than 50 mm.

[0015] Optionally, the temperature regulating part includes a heating belt, which is coiled between the extruded polystyrene board and the prefabricated column grouting area, the heating belt is fixed to the extruded polystyrene board, the heating belt is electrically connected to a temperature controller, the temperature controller is used to adjust the heating temperature of the heating belt, and the temperature controller is electrically connected to the temperature sensing part.

[0016] Optionally, the temperature sensing part includes a temperature measuring line, which is electrically connected to the temperature controller and is arranged in the grouting hole after the grouting of the prefabricated column is completed.

[0017] Optionally, the length of the temperature measuring line is not less than 600 mm.

[0018] Optionally, the height of the wood glue board is not less than 400 mm.

[0019] Optionally, three buckles are provided at the joint between two adjacent wood glue boards on each side.

[0020] Optionally, the distances between two adjacent buckles are equal.

[0021] A method for heat preservation of a prefabricated column grouting area in winter, using the above-mentioned heat preservation device for prefabricated column grouting in winter, comprises the following steps:

[0022] The length, width and height of the insulation device are designed according to the size of the prefabricated column. The temperature sensing part is arranged behind the grouting hole, and the formwork is supported for grouting. After the formwork is removed, the two insulation parts are spliced ​​and wrapped around the outside of the grouting area of ​​the prefabricated column. The temperature of the grouting area of ​​the prefabricated column is monitored in real time by the temperature sensing part, and the temperature is adjusted by the temperature regulating part.

[0023] Compared with the prior art, the present invention has the following advantages and technical effects:

[0024] The present invention can monitor the temperature of the prefabricated column grouting area in real time by setting a temperature sensing part in the grouting hole of the prefabricated column grouting area. After the grouting is completed, the two insulation parts are spliced ​​on the outside of the prefabricated column grouting area and wrapped. The extruded polystyrene board adjacent to the side wall of the prefabricated column grouting area plays a role of insulation. The reflective film can also further reduce the temperature loss. At the same time, the temperature regulating part set between the extruded polystyrene board and the prefabricated column grouting area can adjust the heating degree according to the temperature feedback of the temperature sensing part to ensure the required temperature during the prefabricated column grouting construction in winter. The temperature regulating part adjusts the heating temperature according to the actual situation, which can effectively maintain the temperature of the prefabricated column grouting area, reduce the temperature stress of the grouting material caused by temperature changes, prevent the grouting layer from cracking and peeling, ensure the integrity and durability of the grouting layer, improve the grouting quality, and maintain the temperature of the prefabricated column grouting area, thereby accelerating the setting speed and strength development of the grouting material, so that the grouting operation can be completed in a shorter time, shortening the construction period. It can effectively avoid the phenomenon of rework of the grouting layer due to low temperature, reduce repeated work and waste of manpower and material resources. The above device can be used repeatedly, is not restricted by the site, is simple to install and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a top view of the structure before splicing of the present invention;

[0028] Figure 3 This is a plan view of the thermal insulation device of the present invention after installation;

[0029] Figure 4 This is a vertical view of the thermal insulation device of the present invention after installation;

[0030] Among them, 1. Wood plywood; 2. Reflective film; 3. Extruded polystyrene board; 4. Heating tape; 5. Clip; 6. Temperature controller; 7. Temperature measuring line; 8. Prefabricated column grouting area. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figures 1 to 4 , the present invention discloses a heat preservation device for grouting prefabricated columns in winter, comprising: a heat preservation component wrapped around the outside of the grouting area 8 of the prefabricated column, the heat preservation component comprising two heat preservation parts spliced ​​and fixed;

[0034] The heat-insulating part comprises a wood glue board 1, a reflective film 2 and an extruded polystyrene board 3 which are fixedly arranged in sequence from the outside to the inside;

[0035] The wood glue boards 1 of the two heat-insulating parts are fixed by a fixing part;

[0036] A temperature regulating section is provided between the extruded polystyrene board 3 and the prefabricated column grouting area 8;

[0037] A temperature sensing part is provided in the grouting hole of the prefabricated column grouting area 8, and the temperature sensing part is electrically connected to the temperature regulating part.

[0038] The present invention can monitor the temperature of the prefabricated column grouting area 8 in real time by setting a temperature sensing part in the grouting hole of the prefabricated column grouting area 8. After the grouting is completed, the two insulation parts are spliced ​​on the outside of the prefabricated column grouting area 8 and wrapped. The extruded polystyrene board 3 adjacent to the side wall of the prefabricated column grouting area 8 plays a role of insulation. The reflective film 2 can also further reduce the temperature loss. At the same time, the temperature regulating part set between the extruded polystyrene board 3 and the prefabricated column grouting area 8 can adjust the heating degree according to the temperature feedback of the temperature sensing part to ensure the required temperature during the prefabricated column grouting construction in winter. By adjusting the heating temperature according to the actual situation by the temperature regulating part, the temperature of the prefabricated column grouting area 8 can be effectively maintained, the temperature stress caused by the temperature change of the grouting material can be reduced, the cracks and peeling of the grouting layer can be prevented, the integrity and durability of the grouting layer can be ensured, the grouting quality can be improved, and the temperature of the prefabricated column grouting area 8 can be maintained, thereby accelerating the setting speed and strength development of the grouting material, so that the grouting operation can be completed in a shorter time, shortening the construction period. It can effectively avoid the phenomenon of rework of the grouting layer due to low temperature, reduce repeated work and waste of manpower and material resources. The above device can be used repeatedly, is not restricted by the site, is simple to install and easy to use.

[0039] As an alternative embodiment, the wooden plywood 1 has a U-shaped structure.

[0040] As an alternative embodiment, the height of the wooden plywood 1 is not less than 400 mm.

[0041] In this embodiment, the height of the wooden plywood 1 is selected to be 400 mm, and the sizes of the reflective film 2 and the extruded polystyrene board 3 match the size of the wooden plywood 1.

[0042] As an alternative embodiment, the wooden plywood 1, the reflective film 2 and the extruded polystyrene board 3 are bonded together by glue.

[0043] According to the design dimensions, cut the heat-insulating materials such as the reflective film 2 and the extruded polystyrene board 3. Paste the reflective film 2 on the inner side of the wooden plywood 1 with glue. After the paste is firm, then paste the extruded polystyrene board 3 on the inner side of the reflective film with glue. After the thermal insulation layer is pasted, it is necessary to ensure that the precast column can be tightly wrapped.

[0044] As an alternative embodiment, the thickness of the extruded polystyrene board 3 is not less than 50 mm.

[0045] As an alternative embodiment, the fixing part includes a plurality of buckles 5. The male buckle of the buckle 5 is fixed at the splicing joint of one of the wooden plywoods 1, the female buckle of the buckle 5 is fixedly connected to the splicing joint of another wooden plywood 1, and the male buckle and the female buckle of the buckle 5 are detachably connected.

[0046] As an alternative embodiment, three buckles 5 are provided at the splicing joints of two adjacent wooden plywoods 1 on each side.

[0047] Optionally, the distances between two adjacent buckles 5 are equal.

[0048] The wooden plywood 1 has a U-shaped structure. The joints of the U-shaped structure are connected by buckles 5. Three buckles 5 are evenly installed at equal intervals on each side. The male buckle and the female buckle of the buckle 5 are respectively fixed on the corresponding wooden plywood 1 by screws.

[0049] As an alternative embodiment, the temperature adjustment part includes a heating tape 4. The heating tape 4 is wound between the extruded polystyrene board 3 and the precast column grouting area 8. The heating tape 4 is fixedly connected to the extruded polystyrene board 3. The heating tape 4 is electrically connected to a temperature controller 6. The temperature controller 6 is used to adjust the heating temperature of the heating tape 4, and the temperature controller 6 is electrically connected to the temperature sensing part.

[0050] After the thermal insulation layer is set up, install the heating tape 4. The heating tape 4 should be evenly arranged along the length direction of the precast column on the inner side of the extruded polystyrene board 3 and fixed with plastic staples to ensure that the precast column grouting area 8 can be evenly heated. Connect the heating tape to the power supply to ensure that the heating tape can work properly. At the same time, set the temperature controller 6 to control the temperature and power of the heating device.

[0051] As an optional implementation, the temperature sensing part includes a temperature measuring line 7, which is electrically connected to the temperature controller 6. The temperature measuring line 7 is arranged in the grouting hole after the grouting of the prefabricated column is completed.

[0052] As an optional implementation, the length of the temperature measuring line 7 is not less than 600 mm.

[0053] Furthermore, the temperature controller 6 is preferably a PLC programmable controller. By setting the program of the temperature controller 6, the temperature parameter of the temperature controller 6 is set to a specified temperature. The temperature controller 6 adjusts the heating power of the heating belt 4 in time according to the real-time temperature feedback from the temperature measuring line 7 to ensure that the temperature of the prefabricated column grouting area 8 is constant.

[0054] As an additional implementation manner, the present invention further provides a method for heat preservation of a prefabricated column grouting area in winter, using the above-mentioned heat preservation device for prefabricated column grouting in winter, comprising the following steps:

[0055] The length, width and height of the insulation device are designed according to the size of the prefabricated column. The temperature sensing part is set behind the grouting hole, and the formwork is supported for grouting. After the formwork is removed, the two insulation parts are spliced ​​and wrapped around the outside of the grouting area of ​​the prefabricated column. The temperature of the grouting area of ​​the prefabricated column is monitored in real time by the temperature sensing part and the temperature is adjusted by the temperature regulating part.

[0056] Through the winter prefabricated column grouting insulation device, the prefabricated column grouting insulation during winter construction is perfectly achieved, and the grouting quality is effectively improved. Under extremely tight construction period, not only the construction task is completed on time, but also reference experience is provided for similar projects, which has good social benefits.

[0057] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A heat preservation device for grouting prefabricated columns in winter, characterized in that: include: A heat-insulating component wrapped around the outside of the prefabricated column grouting area (8), the heat-insulating component comprising two heat-insulating parts spliced ​​and fixed; The heat-insulating part comprises a wood glue board (1), a reflective film (2) and an extruded polystyrene board (3) which are fixedly arranged in sequence from the outside to the inside; The wood glue boards (1) of the two heat-insulating parts are fixed by a fixing part; A temperature regulating portion is provided between the extruded polystyrene board (3) and the prefabricated column grouting area (8); A temperature sensing part is provided in the grouting hole of the prefabricated column grouting area (8), and the temperature sensing part is electrically connected to the temperature regulating part.

2. The heat preservation device for grouting prefabricated columns in winter according to claim 1, characterized in that: The wood glue board (1) is a U-shaped structure.

3. The heat preservation device for grouting prefabricated columns in winter according to claim 1, characterized in that: The wood glue board (1), the reflective film (2) and the extruded polystyrene board (3) are bonded together by glue.

4. The heat preservation device for grouting prefabricated columns in winter according to claim 1, characterized in that: The fixing portion comprises a plurality of buckles (5), the male buckle of the buckle (5) is fixed at a joint seam of one of the wood plywood sheets (1), the female buckle of the buckle (5) is fixed at a joint seam of another of the wood plywood sheets (1), and the male buckle and the female buckle of the buckle (5) are detachably connected.

5. The heat preservation device for grouting prefabricated columns in winter according to claim 1, characterized in that: The thickness of the extruded polystyrene board (3) is not less than 50 mm.

6. The heat preservation device for grouting prefabricated columns in winter according to claim 1, characterized in that: The temperature regulating part comprises a heating belt (4), the heating belt (4) is coiled and arranged between the extruded polystyrene board (3) and the prefabricated column grouting area (8), the heating belt (4) is fixedly connected to the extruded polystyrene board (3), the heating belt (4) is electrically connected to a temperature controller (6), the temperature controller (6) is used to adjust the heating temperature of the heating belt (4), and the temperature controller (6) is electrically connected to the temperature sensing part.

7. The heat preservation device for grouting prefabricated columns in winter according to claim 6, characterized in that: The temperature sensing part comprises a temperature measuring line (7), the temperature measuring line (7) is electrically connected to the temperature controller (6), and the temperature measuring line (7) is arranged in the grouting hole after the grouting of the prefabricated column is completed.

8. The heat preservation device for grouting prefabricated columns in winter according to claim 7, characterized in that: The length of the temperature measuring line (7) is not less than 600 mm.

9. The heat preservation device for grouting prefabricated columns in winter according to claim 1, characterized in that: The height of the wood glue board (1) is not less than 400 mm.

10. The heat preservation device for grouting prefabricated columns in winter according to claim 4, characterized in that: Three buckles (5) are provided at the joints of two adjacent wood glue boards (1) on each side.

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