An anti-cracking concrete wall

Abstract

The present invention relates to the field of construction technology, and particularly relates to a crack-proof concrete wall. A crack-proof concrete wall includes a wall body and a stabilizing device. The wall body is constructed of concrete, and the stabilizing device is cast inside the wall body. The stabilizing device includes a device body made of metal. A first cavity and a second cavity are formed inside the device body. The first cavity is arranged close to the wall body inside the room, and the second cavity is arranged close to the wall body outside the room. A buffer layer is filled inside the device body. A first air vent and a second air vent which are communicated are vertically formed in the device body close to the outside. A plurality of wire meshes are also fixed on the surface of the wall body. A liquid accumulation tank is further formed in the first cavity, and a water inlet pipe is also included. The water inlet pipe is communicated with the liquid accumulation tank in sequence, and the hydraulic pressure in the water inlet pipe is constant. The water inlet pipe is used for circulating liquid inside the wall body. The generation of cracks in non-load-bearing walls is reduced.

Description

Technical Field

[0001] The present invention relates to the field of construction technology, and particularly relates to a crack-proof concrete wall. Background Art

[0002] Concrete is one of the most important civil engineering materials in modern times. It is a kind of artificial stone prepared by mixing binder materials, granular aggregates (also known as aggregates), water, and, if necessary, admixtures and fillers in a certain proportion, uniformly stirring, densely forming, and curing and hardening. Concrete has the characteristics of rich raw materials, low price, and simple production process, so its consumption is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. These characteristics make its application range very wide. It is not only used in various civil engineering projects, but also an important material in shipbuilding, mechanical industry, ocean development, geothermal engineering, etc. Therefore, concrete occupies an important position in modern engineering construction. However, the crack problem of concrete is relatively common. The occurrence of cracks not only affects the beauty of the wall, but also, in extreme cases, will affect the load-bearing capacity of the wall structure, posing a safety hazard to the wall structure.

[0003] There are various reasons for the generation of cracks in concrete, mainly including changes in temperature and humidity, brittleness and non-uniformity of concrete, unreasonable structure, unqualified raw materials (such as alkali-aggregate reaction), formwork deformation, and uneven foundation settlement. During the hardening period of concrete, a large amount of hydration heat is released by cement, and the internal temperature keeps rising, causing tensile stress on the surface. In the later stage of cooling, due to the restraint of the foundation or old concrete, tensile stress will also appear inside the concrete. The decrease in temperature will also cause a large tensile stress on the surface of the concrete. When these tensile stresses exceed the crack resistance of the concrete, cracks will appear. The internal humidity of many concretes changes little or slowly, but the surface humidity may change greatly or violently. For example, improper curing, dry and wet alternately, and the surface dry shrinkage deformation restricted by the internal concrete often lead to cracks.

[0004] The invention patent application No. 201911011905.8 discloses an anti-cracking wall body and its construction method, which relates to the technical field of building wall body construction and solves the problem that the plastering layer of the existing wall body is prone to cracking. The key points of its technical solution are that the anti-cracking wall body includes a main wall body, a plurality of interior decorative panels, a plastering layer, a plurality of vertical keels and horizontal keels, a connecting component and a fixing component; the construction method includes: a. Measuring and setting out lines; b. Installing a fixing plate; c. Installing a connecting plate; d. Installing vertical keels; e. Installing horizontal keels; f. Installing interior decorative panels; g. Installing cross beams; h. Grouting; when the wall body deforms, the connecting piece used to connect the interior decorative panel to the wall body can displace on the surface of the wall body, so that when the wall body deforms, the stress generated by the deformation will not be transmitted to the wall panel through the displacement of the connecting piece, thus the wall panel will not deform, and the deformation of the plastering layer on the surface of the wall panel will not be caused, so it is not easy to affect the aesthetics of the interior surface.

[0005] The above-mentioned technology balances the displacement of the wall body through the displacement of the connecting piece, so that the wall panel and the plastering layer (i.e., the display surface of the inner wall) will not be stressed, that is, will not deform. However, for non-load-bearing walls, the bearing requirement is not as high as that of load-bearing walls. When a number of keels are set as in the above-mentioned technology, not only the cost increases, but also the bearing surplus is excessive, resulting in waste of resources. Now a technology is needed to reduce the generation of cracks in non-load-bearing walls. Summary of the Invention

[0006] The present invention provides an anti-cracking concrete wall body, which can reduce the generation of cracks in non-load-bearing walls.

[0007] In order to solve the above-mentioned technical problems, the present application provides the following technical solutions:

[0008] An anti-cracking concrete wall body includes a wall body and a stabilizing device. The wall body is built of concrete, and the stabilizing device is poured inside the wall body;

[0009] The stabilizing device includes a device body made of metal. A first cavity and a second cavity are opened inside the device body. The first cavity is arranged close to the wall body inside the room, and the second cavity is arranged close to the wall body outside the room. The device body is filled with a buffer layer; a first air vent and a second air vent that are communicated are vertically opened on the device body close to the outside; a plurality of wire meshes are also fixed on the surface of the wall body;

[0010] An accumulation tank is also opened in the first cavity, and an inlet pipe is further included. The inlet pipe is communicated with the accumulation tank in sequence, and the hydraulic pressure in the inlet pipe is constant. The inlet pipe is used for circulating liquid inside the wall body.

[0011] The basic principle and beneficial effects of this solution:

[0012] The stabilizing device is cast inside the wall body, spaced inside the wall, and acts as a "vertical steel bar", which can effectively offset the lateral load from the wall surface. The device body is made of metal material to enhance the rigidity and strength of the wall body. At the same time, when pouring concrete, it can effectively divide the concrete into blocks, reducing the overall impact of external loads on the wall. When heat dissipation of the wall is required, such as when concrete releases a large amount of heat during the process of pouring and solidifying, cold water is transported through the water inlet pipe during this period, and part of the heat can be taken away through heat transfer, reducing the generation of cracks during the hardening process of concrete; after the concrete hardens, a wire mesh is fixed on the surface of the wall body, and then decoration is carried out on the surface of the concrete wall body. When the concrete wall body generates stress in a certain direction due to the influence of thermal expansion and contraction, the wire mesh can provide a force in the direction to balance the stress, preventing excessive stress and causing damage to the wall body and cracking. Two connected holes are opened on the device body of the stabilizing device close to the outdoor, both of which are connected to the outdoor for ventilation and heat dissipation. During the use of the wall, when the wall body is unevenly heated, heat transfer causes a temperature difference between the two air vents. Under the action of the external wind force, an air flow will be formed in the channel connected between the two air vents. The flow of the air flow can take away the heat inside the wall body, reducing the damage to the wall body caused by heat accumulation and heat storage, thereby reducing the generation of wall cracking. The device body is filled with a buffer layer, which can provide a buffering effect when the wall body expands and contracts thermally, preventing rigid extrusion and wall surface bursting.

[0013] Further, it further includes a third cavity, and the third cavity is opened in the device body between the first cavity and the second cavity. The third cavity is used to fill liquid polyurethane material after the wall body is poured.

[0014] Beneficial effects: After the device body is cast in the concrete wall body, the stability of the device body is improved, and at the same time, the ability of the wall body to resist lateral loads is improved.

[0015] Further, a safety box is further included in the first cavity. The bottom of the safety box is connected to the liquid accumulation box. An ejection airbag is fixed at the upper end of the safety box, and the ejection airbag is connected to the safety box. A limiting plate is fixed in the safety box, and several diphenylmethane diisocyanates are fixed on the limiting plate. The connection part between the safety box and the liquid accumulation box is constricted, and a blocking block is slidably connected at the constricted part. A pressing spring is fixed between the blocking block and the limiting plate, and the pressing spring is used to balance the hydraulic pressure in the water inlet pipe; an opening is opened at the part of the safety box close to the indoor wall body for the ejection airbag to burst out from the wall body when it expands.

[0016] Beneficial effects: When the indoor temperature rises sharply, such as when a fire occurs, the temperature will quickly rise to more than 200°C. Since the stabilizing device in the wall body is made of metal, its temperature rises quickly during the heat transfer process. The diphenylmethane diisocyanate inside it will produce a pungent odor when heated to serve as a reminder; in the process of continuous temperature rise, the metal water inlet pipe is simultaneously conducting heat transfer, the high temperature causes the liquid in the water inlet pipe to vaporize, the outward pressure in the water inlet pipe increases, pushing the blocking block upward, and the vaporized water vapor rises into the safety box, and the water droplets react with the diphenylmethane diisocyanate in the safety box to generate carbon dioxide. As the gas in the safety box continues to increase, the ejection airbag will be expanded. As the gas continues to gather, the ejection airbag continues to increase in volume and explodes from the opening on the wall body. Under the influence of high temperature or open flame burning, the airbag ruptures, and the water vapor and carbon dioxide gas filled inside it splash around, playing a role in extinguishing the fire.

[0017] Furthermore, it also includes a plurality of counterweight blocks, which are arranged outside the liquid accumulation box and suspended at the lower end of the blocking block.

[0018] Beneficial effect: The counterweight is a supplement to the pressure of the suppression spring. The suppression block provided for the suppression spring makes the upper and lower pressures of the block (i.e., the pressure of the suppression spring on the block and the liquid pressure in the liquid storage tank) remain constant or the upper pressure is slightly greater than the lower hydraulic pressure, ensuring that the liquid cannot push the block upward under normal circumstances. The function of the counterweight is to correct the error of the suppression spring, so that under normal circumstances, the sealing effect of the block on the liquid storage tank is improved.

[0019] When a geological disaster occurs, such as an earthquake, with the influence of vibration, if the wall tilts or collapses, the counterweight block is suspended on the blocking block. When the wall tilts, the direction of the pulling force from the counterweight block changes, so the force is relatively reduced. The liquid in the liquid accumulation tank pushes the blocking block under the action of the force and enters the safety box, where it mixes with the diphenylmethane diisocyanate in the safety box to produce carbon dioxide, which fills the airbag. The airbag breaks through the wall and provides a cushioning effect when the wall collapses. At the same time, a triangular support structure is formed between the airbag, the ground and the wall, reducing the probability of wall collapse injuring people and objects.

[0020] Furthermore, it also includes a water outlet pipe, which is arranged around the inner side of the wall body, and the water outlet pipe and the water inlet pipe are connected to a water air conditioner.

[0021] Beneficial effects: Increase the amount of water pipes laid inside the wall. After connecting to the water air conditioner, when cold water or hot water flows through the pipes in this wall, the wall temperature can be correspondingly increased or decreased, and then the temperature control can be completed in the room constructed with this wall, replacing the existing air conditioner. This measure makes the temperature in all parts of the room tend to be the same and more uniform while controlling the temperature. Compared with the traditional air conditioner that sprays in a specific direction by wind force, the temperature in the room is uneven and the experience effect is not good.

[0022] Further, the second cavity is filled with a heat-conducting material.

[0023] Beneficial effects: Facilitate heat transfer and heat dissipation.

[0024] Further, the wall body near the outdoors is also filled with a heat-insulating layer.

[0025] Further, an installation groove is provided on the device body, and the edge of the wire mesh is fixed in the installation groove.

[0026] Further, the device body is made of one or more of Q235, 20MnSi, 20MnSiV, and 20MnSiNb. Description of the Drawings

[0027] Figure 1 Is a three-dimensional view of an anti-cracking concrete wall;

[0028] Figure 2 Is a connection schematic diagram of the stabilizing device and the water air conditioner;

[0029] Figure 3 Is Figure 2 An enlarged view of C in

[0030] Figure 4 Is a top view of the stabilizing device;

[0031] Figure 5 Is Figure 4 A cross-sectional view of the part of the device body near the outdoors at A in

[0032] Figure 6 Is a three-dimensional schematic diagram of the safety box, the liquid accumulation box, and the water inlet pipe;

[0033] Figure 7 Is a cross-sectional view of the safety box, the liquid accumulation box, and the water inlet pipe;

[0034] Figure 8 Is Figure 7 A schematic diagram of the blocking block being opened at B in

[0035] Figure 9 Is a schematic diagram of the airbag bursting out of the safety box when the wall is tilted. Detailed Implementation Manner

[0036] The following is a further detailed description through specific embodiments:

[0037] The markings in the attached drawings of the specification include: wall body 1, inner wall 11, outer wall 12, stabilizing device 2, first cavity 21, second cavity 22, third cavity 23, device body 24, buffer layer 25, wire mesh installation groove 26, first air vent 271, second air vent 272, water air conditioner 3, water inlet pipe 31, water outlet pipe 32, safety box 41, counterweight 42, liquid accumulation box 43, blocking block 44, pressing spring 45, limiting plate 46, diphenylmethane diisocyanate 47, pop-up airbag 48.

[0038] As shown in the attached drawings of Example 1 Figure 1 as follows

[0039] An anti-cracking concrete wall includes a wall body and a stabilizing device. The wall body is constructed of concrete. The stabilizing device is cast inside the wall body. After casting, the wall body is decorated to form an inner wall and an outer wall. The inner wall and the outer wall are plaster layers or decorative layers. The outer wall is also fixed with a heat insulation layer, and the materials selected are perlite cement board, foam cement board, and composite silicate. The stabilizing device includes a device body made of metal. In this solution, the device body is made of Q235.

[0040] As shown in the attached drawings Figure 3 as follows, a first cavity and a second cavity are opened inside the device body. The first cavity is arranged close to the wall body of the indoor side, and the second cavity is arranged close to the wall body of the outdoor side. The second cavity is filled with a heat-conducting material. The device body is filled with a buffer layer, which is filled with sponge or rubber to balance or relieve the force generated by thermal expansion and contraction during the normal use of the wall body. A number of wire meshes are also fixed on the surface of the wall body. Installation grooves are opened on the device body, and the edges of the wire meshes are fixed in the installation grooves. As shown in the attached drawings Figure 4-5 as follows, a first air vent and a second air vent that are connected are opened in the vertical direction of the device body close to the outdoor side. At the corresponding position of the outer wall, air holes are opened for air circulation. Two connected holes are opened on the device body of the stabilizing device close to the outdoor side, both of which are connected to the outdoor for ventilation and heat dissipation. During the use of the wall, when the wall body is unevenly heated, heat transfer causes a temperature difference between the two air vents. Under the action of the external wind force, an air flow will be formed in the channel connected between the two air vents. The flow of the air flow can take away the heat inside the wall body, reduce the damage to the wall body caused by heat accumulation, and thus reduce the generation of wall cracking. It also includes a third cavity, which is opened in the device body between the first cavity and the second cavity. The third cavity is used to fill liquid polyurethane material after the wall body is cast, and after hardening, it forms a polymer core material of a shear-resistant connector.

[0041] As shown in the attached drawings Figure 3 and6 As shown in Figure 7, a liquid storage box is also provided in the first cavity, and a water inlet pipe is also provided. The water inlet pipe is connected to the liquid storage box in turn. The hydraulic pressure in the water inlet pipe is constant. The water inlet pipe is used to circulate liquid inside the wall body. Figure 2 As shown, it also includes a water outlet pipe, which is arranged around the inner side of the wall body, and the water outlet pipe and the water inlet pipe are connected to a water air conditioner. The water air conditioner produces water that meets the required temperature and circulates through the water inlet pipe. When the pipe in the wall circulates cold water or hot water, the wall temperature can be correspondingly increased or decreased.

[0042] As attached Figure 3 As shown, the first chamber also includes a safety box, as shown in the attached Figure 6 , 8 As shown, the bottom of the safety box is connected to the liquid storage tank, and a pop-up airbag is fixed on the upper end of the safety box. The airbag is connected to the safety box. A limiting plate is fixed in the safety box, and a number of diphenylmethane diisocyanate are fixed on the limiting plate. Diphenylmethane diisocyanate reacts with water to generate carbon dioxide. Reaction equation: 2RNCO + H2O → RNHCONHR + CO2↑ This is a foaming reaction, generating urea and carbon dioxide. Diphenylmethane diisocyanate, namely "MDI". When the indoor temperature rises sharply, such as when a fire occurs, the temperature will quickly rise to above 200°C. Since the stabilizing device in the wall body is made of metal, its temperature rises quickly during the heat transfer process. The diphenylmethane diisocyanate inside it will produce a pungent odor when heated to serve as a reminder; as shown in the attached Figure 8 As shown, the connection part between the safety box and the liquid accumulation box is constricted, and a blocking block is slidably connected at the constricted part. A suppression spring is fixed between the blocking block and the limit plate, and the suppression spring is used to balance the hydraulic pressure in the water inlet pipe; the part of the safety box close to the indoor wall body is provided with an opening for the ejection airbag to burst out from the wall body when it expands. The high temperature vaporizes the liquid in the water inlet pipe, and the pressure from the inside of the water inlet pipe increases, pushing the blocking block upward, and the vaporized water vapor rises into the safety box. The water droplets react with the diphenylmethane diisocyanate in the safety box to generate carbon dioxide. As the gas in the safety box continues to increase, the ejection airbag will be expanded. As the gas continues to gather, the ejection airbag continues to increase in volume and bursts out of the opening on the wall body. Under the influence of high temperature or open flame, the airbag ruptures, and the water vapor and carbon dioxide gas filled in it splash around, playing a role in extinguishing the fire.

[0043] As attached Figure 8-9As shown in the figure, it further includes two counterweights, which are arranged outside the liquid accumulation tank and are suspended at the lower end of the blocking block by ropes. During geological disasters, such as earthquakes, with the influence of vibrations, if the wall tilts or collapses, since the counterweights are suspended on the blocking block, when tilting occurs, the direction of the pulling force exerted on the blocking block by the counterweights changes, and thus the force relatively decreases. The liquid in the liquid accumulation tank pushes open the blocking block under the action of the force and enters the safety box, mixes with the diphenylmethane diisocyanate in the safety box to generate carbon dioxide, fills the airbag, and the airbag breaks through the wall, providing a buffering effect when the wall collapses. At the same time, a triangular support structure is formed between the airbag, the ground, and the wall, reducing the probability of the wall collapse injuring people and objects.

[0044] The above are only the embodiments of the present invention. The present invention is not limited to the fields involved in this embodiment case. The common knowledge of specific structures and characteristics, etc. well-known in the solution is not described in detail here. Those of ordinary skill in the art know all the common technical knowledge in the technical field to which the invention belongs before the application date or the priority date, can know all the existing technologies in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to improve and implement this solution. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners and other records in the specification can be used to interpret the content of the claims.

Claims

1. A crack-resistant concrete wall, characterized in that: It includes a wall body and a stabilizing device. The wall body is constructed of concrete, and the stabilizing device is cast inside the wall body. The stabilizing device includes a device body made of metal. A first chamber and a second chamber are formed inside the device body. The first chamber is arranged close to the indoor wall body, and the second chamber is arranged close to the outdoor wall body. A buffer layer is filled inside the device body. A first air vent and a second air vent which are communicated are formed in the vertical direction of the device body close to the outdoor. A plurality of wire meshes are also fixed on the surface of the wall body. A liquid accumulation tank is further formed in the first chamber. An inlet pipe is also included. The inlet pipe is communicated with the liquid accumulation tank in sequence. The hydraulic pressure in the inlet pipe is constant. The inlet pipe is used for circulating liquid inside the wall body. A safety box is further included in the first chamber. The bottom of the safety box is communicated with the liquid accumulation tank. An ejection airbag is fixed at the upper end of the safety box. The ejection airbag is communicated with the safety box. A limiting plate is fixed inside the safety box. A plurality of diphenylmethane diisocyanates are fixed on the limiting plate. The connection part between the safety box and the liquid accumulation tank is in a necking shape. A blocking block is slidably connected at the necking part. A pressing spring is fixed between the blocking block and the limiting plate. The pressing spring is used for balancing the hydraulic pressure in the inlet pipe. An opening is formed at the part of the safety box close to the indoor wall body for the ejection airbag to burst out from the wall body when it expands.

2. The anti-cracking concrete wall according to claim 1, characterized in that: A third chamber is further included. The third chamber is formed in the device body between the first chamber and the second chamber. The third chamber is used for filling liquid polyurethane material after the wall body is cast.

3. A crack-resistant concrete wall according to claim 1, characterized in that: A plurality of counterweights are further included. The counterweights are arranged outside the liquid accumulation tank. The counterweights are suspended at the lower end of the blocking block.

4. A crack-resistant concrete wall according to claim 1, characterized in that: An outlet pipe is further included. The outlet pipe is arranged around the inner side of the wall body. An air conditioner is connected between the outlet pipe and the inlet pipe.

5. A crack-resistant concrete wall according to claim 1, characterized in that: The second chamber is filled with a heat-conducting material.

6. A crack-resistant concrete wall according to claim 1, characterized in that: A heat-insulating layer is further filled inside the wall body close to the outdoor.

7. A crack-resistant concrete wall according to claim 1, characterized in that: An installation groove is formed in the device body. The edge of the wire mesh is fixed in the installation groove.

8. A crack-resistant concrete wall according to claim 1, characterized in that: The device body is made of one or more of Q235, 20MnSi, 20MnSiV and 20MnSiNb.

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