Warm air type warm-keeping and heating device for concrete winter construction in cold region

Abstract

The utility model relates to a warm air type warm-keeping heating device for concrete winter construction in a cold region, which comprises an air heating device, an air pipe and a telescopic support, the telescopic support comprises a support connecting shaft, a support top connecting column, a support cross rod and a support vertical rod, the air heating device is provided with a temperature adjusting knob and an air volume adjusting knob, an air outlet is upward, and the air outlet is communicated with an air pipe. The air pipe is supported by the telescopic supports, every two support vertical rods are connected in a crossed and hinged mode, the vertexes of every two support vertical rods intersect and are jointly connected to a support top connecting column, the vertexes of the support vertical rods are hinged to the support top connecting column through support connecting shafts, and support transverse rods are connected between the opposite support connecting shafts. The support cross rod is in contact support with the bottom of the air pipe which is made of refractory fiber cloth, and an air pipe air opening is formed in the bottom. The device has the advantages that the device can be repeatedly used; the cost is saved; the concrete surface is uniformly heated, and the construction quality can be improved; toxic suffocation gas is avoided, and safe construction is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of concrete maintenance and is suitable for concrete thermal insulation molding in a low-temperature environment. Background Art

[0002] For buildings with normal construction schedules, construction in cold areas is suspended and workers go home for holidays. However, there is uncertainty in the time for changes to existing facilities and accident repairs. If outdoor construction is carried out during the low temperature period in winter, concrete must be poured, and insulation measures must be taken to avoid poor solidification of concrete at low temperatures and cracking and powdering during spring warming. The existing common practice is to use greenhouse method or electric blanket or cotton blanket covering. The former is suitable for large-scale concrete construction, but when it is applied to scattered projects or construction with small engineering quantities, the cost is high and the heat waste is large. At the same time, the greenhouse method mostly uses raw coal for heating, which has safety hazards of fire, poisoning, and suffocation. Coal is easy to produce polluted gases and pollute the atmospheric environment. In order to ensure the pouring quality of the latter, electric blankets or cotton blankets need to be covered on the concrete surface at the beginning of concrete pouring, which is easy to cause the concrete surface to be uneven, affecting the quality and appearance. At the same time, it will also cause the blanket to stick to the concrete surface, making it difficult to clean and unable to be reused. For occasions such as industrial parks and municipalities that require irregular repairs, it is obviously necessary to design a reusable device. Utility Model Content

[0003] The utility model aims to provide a warm wind type concrete heating device for winter construction in cold areas.

[0004] The technical solution of the utility model is as follows: a warm air type cold area concrete winter construction warming heating device, comprising wind heating equipment, air duct, telescopic bracket, the telescopic bracket comprising a bracket connecting shaft, a bracket top connecting column, a bracket cross bar, and a bracket vertical bar, the wind heating equipment is provided with a temperature adjustment knob, an air volume adjustment knob, the air outlet faces upward, the air outlet is connected to the air duct, the air duct is supported by the telescopic bracket, the bracket vertical bars are cross-connected in pairs, the intersection is hinged by the bracket connecting shaft, the vertices of every two bracket vertical bars intersect and are commonly connected to a bracket top connecting column, the vertices of the bracket vertical bars and the bracket top connecting column are hinged by the bracket connecting shaft, the bracket cross bars are connected between the opposite bracket connecting shafts, the bracket cross bars are in contact with the bottom of the air duct for support, the air duct is made of refractory fiber cloth, and an air duct air outlet is opened at the bottom.

[0005] Furthermore, a baffle is arranged at one end of the device, and a support base is connected to the bottom of the baffle and the bottom of the air heating device. The support base is provided with bolt holes, and connecting nails are driven into the bolt holes to fix them. Screws are used for hardened ground (after being taken out, the screw holes are sealed with cement slurry tank injection), and ordinary round nails or wooden wedges are used for non-hardened ground.

[0006] The preferred support crossbar is a sleeve-type telescopic structure, which is inspired by the form of an umbrella telescopic rod.

[0007] The air duct is connected with a fixed belt, the fixed belt has a toothed belt, and the end thereof has a buckle. The toothed belt and the buckle are detachably connected, and the structure is basically the same as that of a trousers belt.

[0008] The outer wall of the air duct is connected to a connecting sleeve with an open bottom, the top connecting column of the bracket is inserted into the connecting sleeve, the bottom of the top connecting column of the bracket is fixed to the bracket connecting shaft, the bracket connecting shaft is simultaneously inserted into the top openings of the two bracket vertical rods to form a hinged structure, and a cotter pin is provided at the end of the bracket connecting shaft.

[0009] Windshields are further arranged on both sides, and holes are arranged on the upper parts of the windshields, through which the windshields are hung on the connecting columns at the top of the bracket.

[0010] The beneficial effects of the utility model are as follows: compared with the existing technology, the structure is simple, the cost is low, and it can be used repeatedly and reciprocatingly; it can save a lot of manpower and material resources, improve construction efficiency, and save costs; the concrete surface is heated evenly, which can improve the construction quality; there is no toxic asphyxiating gas, ensuring safe construction; no polluting gas is generated, ensuring that the environment is not polluted. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the utility model in a contracted state;

[0012] Figure 2 It is a schematic diagram of the utility model in the unfolded state;

[0013] Figure 3 This is a schematic diagram of the bracket and the air duct of the utility model;

[0014] Figure 4 It is a schematic diagram of the utility model in the unfolded state with the windshield;

[0015] Figure 5 It is a schematic diagram of the shape of the connecting sleeve and the connecting column at the top of the bracket;

[0016] In the figure: (1) - air heating equipment, (2) - air outlet, (3) - bracket connecting shaft, (4) - air duct, (5) - bracket top connecting column, (6) - bracket cross bar, (7) - support base, (8) - bolt hole, (9) - wind screen placement box, (10) - air duct air outlet, (11) - casting, (12) - telescopic bracket, (13) temperature adjustment knob, (14) air volume adjustment knob, (15) - bracket vertical rod, (16) - fixing belt, (17) - connecting sleeve, (18) - wind screen. DETAILED DESCRIPTION

[0017] A warm wind type cold region winter construction warming heating device for concrete, comprising a wind heating device 1, a wind duct 4, and a telescopic bracket 12. The telescopic bracket 12 comprises a bracket connecting shaft 3, a bracket top connecting column 5, a bracket cross bar 6, and a bracket vertical bar 15. The wind heating device 1 has an air outlet 2 facing upward, and the air outlet 2 is connected to the wind duct 4. The warm wind generated by the wind heating device 1 enters the wind duct 4 through the air outlet 2. The wind duct 4 is supported by the telescopic bracket 12, and the bracket vertical bars 15 are cross-connected in pairs. The intersection is hinged by the bracket connecting shaft 3. The vertices of every two bracket vertical bars 15 intersect and are connected to a bracket top connecting column 5. The vertices of the bracket vertical bars 15 and the bracket top connecting column 5 are hinged by the bracket connecting shaft 3. The bracket cross bars 6 are connected between the opposite bracket connecting shafts 3. The bracket cross bars 6 are in contact with the bottom of the wind duct 4 for support. The bracket top connecting column 5 also plays a role in lateral positioning of the wind duct. The air duct 4 is made of refractory fiber cloth. The refractory fiber cloth material is soft and can compress wrinkles. A plurality of air duct vents 10 are opened at the bottom. The warm air from the air outlet 2 reaches the surrounding of the cast object 11 through the air duct vents 10. The air heating device 1 is provided with a temperature adjustment knob 13 and an air volume adjustment knob 14. The air volume and temperature of the air heating system are controlled by the knobs. The bracket vertical rod 15 and the bracket connecting shaft 3 form a diamond-shaped telescopic structure. The coverage length of the device can be controlled by stretching and retracting. The storage state is completely shrunk together (such as Figure 1 ).

[0018] A baffle is set at one end of the device, and a support base 7 is connected to the bottom of the baffle and the bottom of the air heating device 1. The support base 7 is provided with bolt holes 8, and connecting nails are driven into the bolt holes 8 to fix them. Screws are used on hardened ground, and ordinary round nails or wooden wedges are used on non-hardened ground to achieve the effect of fixing the device to prevent it from being blown crooked by strong winds.

[0019] The support crossbar is a sleeve-type telescopic structure, so that the coverage width range can be adjusted.

[0020] The air duct 4 is connected with a fixed belt 16, which has a toothed belt and a buckle at the end, and the toothed belt and the buckle are detachably connected. The fixed belt 16 can bundle the air duct 4 and the bracket cross bar 6 when the whole device is retracted.

[0021] The air duct 4 and the bracket 12 may not be directly connected. In order to improve the connection tightness and be more wind-resistant, they are further designed as a connected structure. Figure 5 As shown, the outer wall of the air duct 4 is connected to a connecting sleeve 17 with an open bottom, the top connecting column 5 of the bracket is inserted into the connecting sleeve 17, the bottom of the top connecting column 5 of the bracket is fixed to the bracket connecting shaft 3, and the bracket connecting shaft 3 is simultaneously inserted into the top openings of the two bracket vertical rods 15 to form a hinged structure, and a cotter pin is provided at the end of the bracket connecting shaft 3.

[0022] A windshield placement box 9 is provided on the upper part of the wind heating device 1, and a folded windshield 18 is placed inside. The windshield 18 is made of fire-resistant heat-insulating material. When in use, the windshield 18 is taken out of the windshield placement box 9, unfolded and hung on both sides of the device, and the upper part of the windshield 18 is provided with holes, through which it is hung on the top connecting column 5 of the bracket. A blanket cloth can also be made of a whole piece of fire-resistant heat-insulating material, which is set up to cover the entire warming and heating device, and the bottom area in contact with the ground is pressed with bricks to prevent wind from blowing up.

[0023] When using, 1. Under normal conditions (such as Figure 1 ), fix the belt 16 to tie up the air duct 4 to prevent it from unfolding. When it is needed, move the device to the site, support one side of the device's air heating system through the support seat 7 and fix it to the ground through the bolt hole 8. After the pouring, vibration and plastering of the cast object are completed, open the fixing belt 16, pull open the bracket 12, and then pull open the air duct 4, so that it is placed horizontally on the bracket crossbar 6 and located on the inner side of the connecting column 5 at the top of the bracket. At the same time, take out the wind shield curtain 18 and hang it on both sides to wrap the entire system tightly, and fix the other side of the device to the ground through the support seat 7 and the bolt hole 8 again. At this time, turn on the air heating device 1, adjust the temperature adjustment knob 13 and the air volume adjustment knob 14 to the appropriate temperature, and the warm air will reach the surrounding of the cast object 11 through the air outlet 2, the air duct 4, and the air duct outlet 10, so that the temperature around the cast object 11 reaches a suitable temperature (such as Figure 2 , Figure 3 ).

[0024] 2. When the construction is completed and the inspection is qualified, the air heating device 1 is turned off, and the wind screen 18 is retracted to the wind screen placement box 9, and the air duct 4 is retracted to one side of the air heating device 1; the support base 7 is disassembled from the ground, and the bracket 12 is retracted to one side of the air heating device 1; the whole device is fixed with a fixing belt 16 (such as Figure 1 ) for next use and reuse.

[0025] In addition, the present invention can also be used for other contents that require winter construction, such as masonry construction, wall plastering and whitewashing, and can also be used for temporary outdoor heating and insulation measures for water and other easily frozen pipes in winter.

Claims

1. A warm air type cold area concrete winter construction warming heating device, characterized by The invention comprises a wind heating device (1), an air duct (4), and a telescopic bracket (12). The telescopic bracket (12) comprises a bracket connecting shaft (3), a bracket top connecting column (5), a bracket cross bar (6), and a bracket vertical bar (15). The wind heating device (1) is provided with a temperature adjustment knob (13) and an air volume adjustment knob (14). The air outlet (2) faces upward, the air outlet (2) is connected to the air duct (4), the air duct (4) is supported by the telescopic bracket (12), the bracket vertical bars (15) are cross-connected in pairs, the intersection is hinged by the bracket connecting shaft (3), the vertices of every two bracket vertical bars (15) intersect and are connected to a bracket top connecting column (5), the vertices of the bracket vertical bars (15) and the bracket top connecting column (5) are hinged by the bracket connecting shaft (3), the bracket cross bars (6) are connected between the opposite bracket connecting shafts (3), the bracket cross bars (6) are in contact with the bottom of the air duct (4) for support, and the air duct (4) is made of fire-resistant fiber cloth, and the bottom is provided with an air duct air outlet (10).

2. The warm air type cold area concrete winter construction warming heating device according to claim 1 is characterized in that A baffle is provided at one end of the device, and a support base (7) is connected to the bottom of the baffle and the bottom of the air heating device (1). The support base (7) is provided with a bolt hole (8), and a connecting nail is driven into the bolt hole (8) to fix it. The hardened ground is fixed with a screw, and the non-hardened ground is fixed with an ordinary round nail or a wooden wedge.

3. The warm air type cold area concrete winter construction warming heating device according to claim 1 is characterized in that The support crossbar is a sleeve-type telescopic structure.

4. The warm air type cold area concrete winter construction warming heating device according to claim 1 is characterized in that The air duct (4) is connected to a fixed belt (16), the fixed belt (16) is provided with a toothed belt, an end of which is provided with a buckle, and the toothed belt and the buckle are detachably connected.

5. The warm air type cold area concrete winter construction warming heating device according to claim 1 is characterized in that The outer wall of the air duct (4) is connected to a connecting sleeve (17) with an open bottom. The bracket top connecting column (5) is inserted into the connecting sleeve (17). The bottom of the bracket top connecting column (5) is fixed to the bracket connecting shaft (3). The bracket connecting shaft (3) is simultaneously inserted into the top openings of the two bracket vertical rods (15) to form a hinged structure. A split pin is provided at the end of the bracket connecting shaft (3).

6. The warm air type cold area concrete winter construction warming heating device according to claim 5 is characterized by: Wind shielding curtains (18) are provided on both sides, and holes are provided on the upper part of the wind shielding curtains (18) so as to be hung on the connecting column (5) at the top of the bracket through the holes.

7. The warm wind type cold area concrete winter construction warming heating device according to claim 6 is characterized by: A wind screen placement box (9) is provided on the upper portion of the wind heating device (1).

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