A crack prevention device for continuous cooling of concrete columns

Abstract

This invention relates to a crack prevention device for continuous cooling of concrete columns, comprising an insulation strip and a driving mechanism. One end of the insulation strip is connected to a collar, which has an elongated through-hole allowing the other end of the insulation strip to pass through. A connecting strip is fixed to the outer surface of the insulation strip, extending along the length of the insulation strip and extending a portion from the other end of the insulation strip. The portion of the connecting strip extending from the other end of the insulation strip forms a connecting section. The driving end of the driving mechanism is detachably connected to the connecting section. This invention firstly provides thermal insulation, separating the concrete column from the external environment to prevent excessive temperature differences between the inside and outside, allowing heat inside the concrete column to slowly release outward from its top and bottom ends. Secondly, it provides restraint, preventing the internal expansion of the poured concrete column from generating corresponding tensile stress on the outside, which could lead to cracking of the concrete surface, thus providing good protection for the concrete column.

Description

Technical Field

[0001] This invention relates to the technical field of building construction, specifically to a crack prevention device for continuous cooling of concrete columns. Background Technology

[0002] Concrete cracks are physical structural changes caused by internal and external factors in concrete structures. Cracks are the main cause of reduced load-bearing capacity, durability, and waterproofing of concrete structures. Only by correctly identifying the causes of concrete cracks and taking corresponding measures to eliminate hidden dangers can structural safety and normal use be ensured.

[0003] Simultaneously, after concrete is poured, the internal temperature rises rapidly due to the initial heat of hydration. During winter construction, the weather is extremely cold. If insulation measures are inadequate, the internal expansion of the concrete generates corresponding tensile stress on the outside, leading to surface cracking. The temperature difference between the inside and outside of the concrete must not exceed 25°C. Current technology uses heat conduction to address this problem, which, while effective, is extremely costly. Therefore, finding a cost-effective way to prevent concrete cracking due to cooling is crucial. Summary of the Invention

[0004] In order to solve one or more technical problems existing in the prior art, the present invention provides a crack prevention device for continuous cooling of concrete columns.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A crack prevention device for continuous cooling of concrete columns includes an insulation strip and a driving mechanism. One end of the insulation strip is connected to a collar, and the collar has an elongated through hole through which the other end of the insulation strip can pass. A connecting strip is fixed on the outer surface of the insulation strip. The connecting strip extends along the length direction of the insulation strip and extends a portion from the other end of the insulation strip. The portion of the connecting strip extending from the other end of the insulation strip is a connecting section. The driving end of the driving mechanism is detachably connected to the connecting section.

[0006] The beneficial effects of this invention are as follows: The concrete column continuous cooling crack prevention device of this invention, through the cooperation of the insulation tape and the driving mechanism, can wrap the insulation tape around the outside of the concrete column, and then pass the other end of the insulation tape through the collar and connect it to the driving end of the driving mechanism. The driving mechanism drives the insulation tape to tightly wrap the concrete column. First, it can play a role in heat insulation, separating the concrete column from the external environment and avoiding excessive temperature difference between the inside and outside, so that the heat inside the concrete column can be slowly released from its top and bottom ends. Second, it can play a binding role, preventing the internal expansion of the poured concrete column from generating corresponding tensile stress on the outside, which would lead to cracking of the concrete surface, thus providing a better protection for the concrete column.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the collar is an elongated strip structure, extending along the width direction of the insulation strip, and the elongated through hole extends along the length direction of the collar.

[0009] The beneficial effects of adopting the above-mentioned further solution are: the use of a long strip-shaped collar allows the long strip-shaped through hole to extend along the length of the collar, so that the other end of the insulation strip can pass through the collar, and the insulation strip will not wrinkle in the width direction, which facilitates the fitting and wrapping of the concrete column.

[0010] Furthermore, the length of the elongated through-hole is greater than the width of the insulation strip.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the insulation tape can be freely unfolded within the loop without wrinkles, resulting in a better wrapping effect.

[0012] Furthermore, the two ends of the elongated through hole extend to the outer sides of the two sides of the insulation strip in the width direction.

[0013] Furthermore, there are at least two connecting strips, with one connecting strip provided on each of the two sides of the insulation strip closest to its width.

[0014] The beneficial effect of adopting the above-mentioned further solution is that it further ensures the stable connection between the drive end of the drive mechanism and the connecting belt, which is conducive to applying a uniform force to the insulation belt.

[0015] Furthermore, the free end of the connecting segment is provided with a connecting hole, a steel ring is provided in the connecting hole, and the driving end of the driving mechanism is provided with a vertically arranged fixing rod, and the fixing rod is provided with a hook corresponding to the connecting hole.

[0016] The beneficial effect of adopting the above-mentioned further solution is that by setting a steel ring inside the connection hole, the driving end of the drive mechanism is prevented from damaging the connection section.

[0017] Furthermore, the fixing rod is provided with a U-shaped hinge block, and a vertically arranged hinge shaft is provided in the opening of the U-shaped hinge block, and the hook is hinged to the hinge shaft.

[0018] The beneficial effect of adopting the above-mentioned further solution is that it allows for free adjustment of the hook's hanging angle.

[0019] Furthermore, the U-shaped hinge block includes a base plate and two vertically arranged side plates. The base plate is fixed to the fixing rod, and the opening is formed between the two vertically arranged side plates. The hinge shaft is mounted on the two side plates.

[0020] Furthermore, the driving mechanism is a lead screw and nut driving mechanism, the nut of the lead screw and nut driving mechanism is the driving end of the driving mechanism, and a fixed base is installed at the bottom of the driving mechanism.

[0021] The beneficial effect of adopting the above-mentioned further solution is that using a lead screw and nut drive mechanism is conducive to the stable control of the drive process.

[0022] Furthermore, the insulation strip includes a base layer and an insulation layer, wherein the base layer includes a non-woven fabric layer and the insulation layer includes a glass fiber layer.

[0023] The beneficial effect of adopting the above-mentioned further solutions is that it can effectively insulate the concrete columns. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the crack prevention device for continuous cooling of concrete columns according to the present invention. Figure 1 ;

[0025] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle;

[0026] Figure 3 This is a three-dimensional structural diagram of the crack prevention device for continuous cooling of concrete columns according to the present invention. Figure 2 ;

[0027] Figure 4 This is a three-dimensional structural schematic diagram of the lead screw and nut drive mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the thermal insulation tape of the present invention.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Insulation strip; 11. Base layer; 12. Insulation layer;

[0031] 2. Collar; 3. Long strip-shaped through hole;

[0032] 4. Connecting belt; 41. Connecting hole; 42. Connecting section; 43. Steel ring;

[0033] 5. Fixing base; 51. Fixing hole;

[0034] 6. Joystick; 61. Lead screw; 62. Slider; 63. Guide groove;

[0035] 7. Fixed rod; 71. U-shaped hinge block; 72. Hinge shaft; 8. Hook; 9. Concrete column. Detailed Implementation

[0036] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0037] like Figures 1-5 As shown in the figure, a crack prevention device for continuous cooling of concrete columns in this embodiment includes an insulation strip 1 and a driving mechanism. One end of the insulation strip 1 is connected to a collar 2, and the collar 2 has an elongated through hole 3 through which the other end of the insulation strip 1 can pass. A connecting strip 4 is fixed to the outer surface of the insulation strip 1. The connecting strip 4 extends along the length of the insulation strip 1 and extends a portion from the other end of the insulation strip 1. The portion of the connecting strip 4 extending from the other end of the insulation strip 1 is a connecting section 42. The driving end of the driving mechanism is detachably connected to the connecting section 42. The collar 2 can be made of metal and has sufficient tensile strength.

[0038] This embodiment of the concrete column continuous cooling crack prevention device uses a principle similar to the outer protective sleeve of a water pipe. Before continuous cooling, insulation tape is wrapped around the surface of the concrete column like a bandage, and the ends are connected and fixed by hooks and steel rings of the drive mechanism. This method not only allows the insulation tape to be retracted and reused, but also better prevents large-area concrete cracks caused by low temperatures compared to traditional heat conduction methods. This concrete column continuous cooling crack prevention device isolates the temperature transfer between the inside and outside of the concrete column, preventing cracks caused by low temperatures. This method is a physical insulation and has the characteristic of reusability. In use, by setting the insulation tape on the outside of the concrete column, it plays a role in heat insulation and insulation, separating the concrete column from the external environment and avoiding excessive temperature difference between the inside and outside. This allows the heat inside the concrete column to be slowly released from its ends to the outside. At the same time, the insulation tape also has a binding effect, which can prevent the internal expansion of the poured concrete column from generating corresponding tensile stress on the outside, leading to cracking of the concrete surface, thus providing a good protection for the concrete column.

[0039] like Figure 1 and Figure 3 As shown, the collar 2 in this embodiment has a long strip structure. The collar 2 extends along the width direction of the insulation strip 1, and the long strip through hole 3 extends along the length direction of the collar 2. Using a long strip structure for the collar allows the long strip through hole to extend along the length direction of the collar, enabling the other end of the insulation strip to pass through the collar without creating wrinkles in the width direction of the insulation strip, thus facilitating the fitting and wrapping of the concrete column.

[0040] like Figures 1-3As shown, in this embodiment, the length of the elongated through-hole 3 is greater than the width of the insulation strip 1. This allows the insulation strip to unfold freely within the loop without wrinkling, resulting in a better wrapping effect.

[0041] like Figure 1 and Figure 3 As shown, in this embodiment, the two ends of the elongated through hole 3 extend to the outer sides of the two sides of the insulation strip 1 in the width direction.

[0042] like Figure 1 and Figure 3 As shown, in this embodiment, there are at least two connecting strips 4, with one connecting strip 4 located on each of the two sides of the insulation strip 1 closest to its width. This further ensures a stable connection between the drive end of the drive mechanism and the connecting strips, which is beneficial for applying a uniform force to the insulation strip.

[0043] like Figures 1-3 As shown, in this embodiment, the free end of the connecting segment 42 is provided with a connecting hole 41, and a steel ring 43 is provided inside the connecting hole 41. The driving end of the driving mechanism is provided with a vertically arranged fixing rod 7, and a hook 8 is provided on the fixing rod 7 corresponding to the connecting hole 41. By providing a steel ring inside the connecting hole, damage to the connecting segment by the driving end of the driving mechanism is avoided.

[0044] like Figures 1-4 As shown, the fixing rod 7 in this embodiment is provided with a U-shaped hinge block 71, and a vertically arranged hinge shaft 72 is provided in the opening of the U-shaped hinge block 71. The hook 8 is hinged to the hinge shaft 72. This allows the hook to be freely adjusted for the hanging angle.

[0045] like Figures 1-4 As shown, the U-shaped hinge block 71 in this embodiment includes a base plate and two vertically arranged side plates. The base plate is fixed to the fixing rod 7, and the opening is formed between the two vertically arranged side plates. The hinge shaft 72 is mounted on the two side plates, and the hook is mounted on the hinge shaft 72. The hinge shaft 72 can rotate relative to the side plates. The hook 8 can be fixed on the hinge shaft 72 or rotate relative to the hinge shaft 72. The vertically arranged side plates can clamp the hook 8 in the opening and make the hook 8 horizontally arranged.

[0046] like Figure 4As shown, the driving mechanism in this embodiment is a lead screw and nut driving mechanism. The nut of the lead screw and nut driving mechanism is the driving end of the driving mechanism, and a fixed seat 5 is installed at the bottom of the driving mechanism. Specifically, the fixed seat 5 has a flat plate structure, and all four sides of the fixed seat 5 extend from the four sides of the lead screw and nut driving mechanism. Fixing holes 51 can be opened on the extended parts of the fixed seat 5, and then screws are used to cooperate with the fixing holes 51 to stably install the fixed seat 5 on the ground. In addition, the shape of the fixed seat 5 can be any structure, such as square, circular, elliptical, or irregular, and the shape and structure of the fixed seat 5 can be determined according to the shape of the lead screw and nut driving mechanism. When the entire crack prevention device is in use, the fixed seat is placed next to the concrete column and can be fixed by screws in cooperation with the fixing holes.

[0047] Specifically, the lead screw and nut drive mechanism further includes a lead screw 61, a slider 62, and a guide groove 63. The guide groove 63 is a long, narrow groove with an open top. The slider 62 is slidably connected within the guide groove 63 and can slide along the length of the guide groove 63. Both ends of the lead screw 61 are rotatably connected to the side walls of the guide groove 63 along its length via bearings. The slider 62 is fixedly connected to the nut of the lead screw and nut drive mechanism. A rocker arm 6 can also be connected to one end of the lead screw 61. The rocker arm 6 can have an L-shaped structure and a fixed rubber sleeve on its surface. The rubber sleeve has a certain degree of elasticity and can act as a buffer to protect the operator's hands. By rotating the rocker arm 6, the lead screw 61 can be driven to rotate, and the nut threaded onto it can then drive the slider 62 to slide along the guide groove 63. The lower end of the fixing rod 7 can be fixed to the slider 62. The fixing rod 7 is arranged vertically, and U-shaped hinge blocks 71 can be fixed to the upper and lower ends of one side wall of the fixing rod 7 respectively. The opening directions of the two U-shaped hinge blocks 71 are parallel and face the same side. Then, each U-shaped hinge block 71 is hinged with a hook 8 through a hinge shaft 72. The number of U-shaped hinge blocks 71 and hooks 8 can be set according to the number of connecting straps 4. For example, when there are two connecting straps 4, two U-shaped hinge blocks 71 and two hooks 8 can be set; when there are three connecting straps 4, three U-shaped hinge blocks 71 and three hooks 8 can be set. The fixing rod 7 can be a cylindrical rod or a square rod, etc. The working principle of the drive mechanism is that when the rocker arm is rotated, the reciprocating screw rotates, which can drive the slider to reciprocate along the guide groove, which is beneficial to the stable control of the drive process.

[0048] like Figure 5As shown, the insulation strip 1 in this embodiment includes a base layer 11 and an insulation layer 12. The base layer 11 includes a non-woven fabric layer, and the insulation layer 12 includes a fiberglass layer. Fiberglass has higher temperature resistance than organic fibers, is non-flammable, corrosion-resistant, heat-insulating, and has high tensile strength. The insulation strip not only has high tensile strength but also good thermal insulation effect, effectively insulating the concrete column 9. The connecting strip 4 can be a belt with a certain tensile strength and is fixed to the base layer 11. During wrapping, the insulation strip 1 extends along the height direction of the concrete column 9 in the width direction, and wraps around the circumference of the concrete column 9 in the length direction.

[0049] In the specific use of the concrete column continuous cooling crack prevention device in this embodiment, the on-site construction personnel first wrap the insulation tape around the outside of the concrete column, so that the other end of the insulation tape passes through the long strip hole of the end collar. Then, by rotating the screw through the rocker, the slider moves along the guide groove, so that the fixed rod pulls the connecting tape away from the concrete column. In this way, the insulation tape is tightly attached to the outer surface of the concrete column. The insulation layer set by the insulation tape can provide a good insulation effect for the concrete column. At the same time, because of its inner and outer double layers, it can play a good role in resisting continuous low temperatures. In addition, this device can also be used in conjunction with traditional heat conduction methods, which can make large areas of concrete less susceptible to freezing damage.

[0050] This embodiment of the concrete column continuous cooling crack prevention device uses an insulation tape and a driving mechanism to wrap the insulation tape around the outside of the concrete column. The other end of the insulation tape is then passed through a collar and connected to the driving end of the driving mechanism, which drives the insulation tape to tightly wrap the concrete column. Firstly, it provides thermal insulation, separating the concrete column from the external environment and preventing excessive temperature differences, allowing heat inside the concrete column to slowly release outwards from its top and bottom ends. Secondly, it provides restraint, preventing the internal expansion of the poured concrete column from generating corresponding tensile stress on the outside, which could lead to cracking of the concrete surface, thus providing good protection for the concrete column. This embodiment of the concrete column continuous cooling crack prevention device aims to abandon traditional heat conduction methods by wrapping the surface of concrete columns or other large-area columnar concrete structures with insulation tape to achieve internal and external thermal insulation, preventing heat loss and also preventing moisture from adhering to the concrete surface, further increasing the possibility of freezing and cracking. This method is very practical and inexpensive. By installing an insulation strip on the outside of the concrete column to separate it from the external environment, the problem of cracking caused by cooling is prevented from being caused by excessive temperature difference between the inside and outside environments. Compared with traditional heat conduction, this method has the functions of heat insulation and reducing prevention and control costs. At the same time, the device can be reused.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A crack prevention device for continuous cooling of concrete columns, characterized in that, The device includes an insulation strip and a drive mechanism. One end of the insulation strip is connected to a collar, and the collar has an elongated through hole through which the other end of the insulation strip can pass. A connecting strip is fixed to the outer surface of the insulation strip. The connecting strip extends along the length of the insulation strip and extends a portion from the other end of the insulation strip. The portion of the connecting strip extending from the other end of the insulation strip is a connecting segment. The drive end of the drive mechanism is detachably connected to the connecting segment. The free end of the connecting section is provided with a connecting hole, and a steel ring is provided in the connecting hole. The driving end of the driving mechanism is provided with a vertically arranged fixing rod, and a hook is provided on the fixing rod corresponding to the connecting hole. A U-shaped hinge block is provided on the fixing rod, and a vertically arranged hinge shaft is provided in the opening of the U-shaped hinge block. The hook is hinged to the hinge shaft. The U-shaped hinge block includes a base plate and two vertically arranged side plates. The base plate is fixed to the fixing rod, and the opening is formed between the two vertically arranged side plates. The hinge shaft is installed on the two side plates. The driving mechanism is a lead screw and nut driving mechanism, where the nut is the driving end of the mechanism, and a fixed base is installed at the bottom of the mechanism. The lead screw and nut driving mechanism also includes a lead screw, a slider, and a guide groove. The guide groove is a long, narrow groove with an open top. A slider is slidably connected within the guide groove and can slide along the length of the guide groove. Both ends of the lead screw are rotatably connected to the side walls of the guide groove along its length via bearings. The slider is fixedly connected to the nut of the lead screw and nut driving mechanism. The lower end of the fixed rod is fixed to the slider. The collar is a long strip structure, extending along the width direction of the insulation strip, and the long strip through hole extends along the length direction of the collar.

2. The crack prevention device for continuous cooling of concrete columns according to claim 1, characterized in that, The length of the elongated through-hole is greater than the width of the insulation strip.

3. The crack prevention device for continuous cooling of concrete columns according to claim 2, characterized in that, The two ends of the elongated through hole extend to the outer sides of the two sides of the insulation strip in the width direction.

4. The crack prevention device for continuous cooling of concrete columns according to claim 1, characterized in that, The connecting strips are at least two, and the insulation strip is provided with one connecting strip on each of its two sides near its width direction.

5. The crack prevention device for continuous cooling of concrete columns according to claim 1, characterized in that, The insulation strip includes a base layer and an insulation layer. The base layer includes a non-woven fabric layer, and the insulation layer includes a fiberglass layer.

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