Concrete wall crack repairing device

Abstract

The invention discloses a concrete wall crack repairing device which comprises a repairing patch and a joint mixture injection mechanism, a temperature difference sensing mechanism and a flow adjusting mechanism are arranged on the repairing patch, the temperature difference sensing mechanism is fixedly installed on the upper end face of the repairing patch and comprises a fixing frame and a temperature sensing rod, the temperature sensing rod is detachably installed on the fixing frame, and the flow adjusting mechanism is fixedly installed on the fixing frame. The temperature sensing rod is fixedly connected with the flow adjusting mechanism, the flow adjusting mechanism is fixedly installed between the joint mixture injection mechanism and the repairing patch and comprises a temperature difference conversion sleeve, a flow adjusting piston and a polymerization inhibitor pipe, an injection hole is formed in the upper end face of the temperature difference conversion sleeve, and the flow adjusting piston is installed on the side wall of the injection hole in a sliding mode. The method has the advantages of high crack repairing efficiency and good crack repairing quality, and solves the problems of low crack repairing efficiency and poor crack repairing quality caused by difficult control of the repairing material injection rate due to environment temperature change in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of wall repair, in particular to a concrete wall crack repairing device. Background Art

[0002] In the modern construction industry, concrete, as the main building material, is widely used in various building structures. However, due to the influence of various internal and external factors, such as construction quality, environmental changes, load effects, etc., concrete structures are prone to cracks during long-term service. These cracks not only affect the appearance of the structure, but more importantly, they reduce the durability and safety of the structure, become channels for water vapor penetration, accelerate steel corrosion, and even cause structural damage in severe cases.

[0003] Traditional concrete crack repair methods usually include manually removing debris from the cracks, cement sealing, and pouring repair materials (such as epoxy resin). When pouring epoxy resin, it is necessary to slowly inject it through a syringe. This process usually lasts for several hours. This process often relies on manual operation and has many shortcomings. For example, the injection rate of the repair material is difficult to control, especially in environmental areas with large temperature fluctuations. The temperature difference between sunrise and sunset is dozens of degrees, and the fluidity and solidification time of the material will be affected. When the temperature rises, the fluidity of the epoxy resin increases and the solidification time is shortened, which can easily lead to bubbles and material waste caused by too fast injection, and the epoxy resin solidifies prematurely, resulting in the inability of the epoxy resin to fill the crack depth, affecting the repair effect. When the temperature drops, the flow rate of the epoxy resin decreases, and the injection is too slow to affect the repair efficiency and quality. Therefore, a concrete wall crack repair device is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a concrete wall crack repair device, which has the advantages of high crack repair efficiency and good quality, and solves the problem in the prior art that the injection rate of the repair material is difficult to control due to changes in ambient temperature, resulting in low crack repair efficiency and poor crack repair quality.

[0005] To achieve the above object, the present invention provides the following technical solutions: a concrete wall crack repair device, comprising a repair patch and a caulking agent injection mechanism, wherein the repair patch is provided with a temperature difference sensing mechanism and a flow regulating mechanism; The temperature difference sensing mechanism is fixedly mounted on the upper end surface of the repair patch, and the temperature difference sensing mechanism includes a fixing frame and a temperature sensing rod, the temperature sensing rod is detachably mounted on the fixing frame, and the temperature sensing rod is fixedly connected to the flow regulating mechanism; The flow regulating mechanism is fixedly installed between the sealant injection mechanism and the repair patch. The flow regulating mechanism includes a temperature difference conversion sleeve, a flow regulating piston and an inhibitor tube. The upper end surface of the temperature difference conversion sleeve is provided with an injection hole, and the flow regulating piston is slidably installed on the side wall of the injection hole.

[0006] As a preferred concrete wall crack repair device of the present invention, the corner of the repair patch is provided with an expansion anchor for fixing, the top of the expansion anchor is provided with an external thread, and the fixing frame is provided with a rotatably connected internal threaded sleeve, and the internal threaded sleeve is threadedly connected to the expansion anchor.

[0007] As a preferred concrete wall crack repairing device of the present invention, the temperature sensing rod includes a temperature sensing sleeve and a temperature sensing piston, the temperature sensing piston is inserted into the temperature sensing sleeve and is slidingly and sealingly connected thereto, a temperature sensing solution is arranged in the temperature sensing sleeve, and a liquid storage chamber and a piston chamber are arranged in the temperature sensing sleeve, and the diameter of the liquid storage chamber is larger than the diameter of the piston chamber.

[0008] As a preferred concrete wall crack repairing device of the present invention, a pressure measuring sleeve is arranged on the side of the temperature difference conversion sleeve, a first spring is arranged in the pressure measuring sleeve, the temperature sensing piston is inserted into the pressure measuring sleeve and elastically connected to the pressure measuring sleeve through the first spring, and scale lines are arranged on the surface of the temperature sensing piston.

[0009] As a preferred concrete wall crack repairing device of the present invention, the front end of the temperature sensing sleeve is provided with an external threaded screw, the center of the fixing frame is provided with a rotatably connected adjusting nut, and the external threaded screw passes through the adjusting nut and is threadedly connected thereto.

[0010] As a preferred concrete wall crack repairing device of the present invention, the temperature difference conversion sleeve is a hollow tubular structure, hydraulic oil is arranged in the interlayer of the temperature difference conversion sleeve, a sliding hole is arranged on the side wall of the temperature difference conversion sleeve, and the flow regulating piston is inserted into the sliding hole and is slidably connected with the temperature conversion sleeve.

[0011] As a preferred concrete wall crack repairing device of the present invention, a limiting ring is arranged at the front end of the flow regulating piston, the limiting ring is a semicircular ring structure, and the side end surface of the limiting ring is a conical structure, and two sets of limiting rings are closed to form a conical funnel-shaped structure.

[0012] As a preferred concrete wall crack repairing device of the present invention, the side wall of the limiting ring is provided with an auxiliary material hole which penetrates the side wall of the flow regulating piston, the bottom of the inhibitor tube is provided with a discharge hole, and when the flow regulating piston is fully extended, the auxiliary material hole is aligned with and connected to the discharge hole.

[0013] As a preferred embodiment of the concrete wall crack repairing device of the present invention, a spiral blade is arranged in the injection hole.

[0014] As a preferred concrete wall crack repairing device of the present invention, the repair patch is made of felt, the caulking agent injection mechanism has an injection syringe, an injection piston and a second spring, and the injection syringe and the injection piston are elastically connected through the second spring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses a temperature difference sensing mechanism and a flow regulating mechanism. The temperature difference sensing mechanism can sense the temperature change of the environment or the concrete surface in real time, and convert the temperature change into the displacement of the temperature sensing piston, thereby triggering the flow regulating mechanism to change the position of the flow regulating piston to automatically change the aperture of the injection hole, control the injection rate of the epoxy resin, and avoid the problem that the epoxy resin becomes more fluid in a high temperature environment, resulting in too fast an injection rate of the epoxy resin, too many bubbles in the epoxy resin, or overflow and waste of the epoxy resin.

[0016] 2. The present invention not only limits the injection hole diameter through the conical funnel structure of the limiting ring, but also promotes the mixing of the epoxy resin and the inhibitor, effectively slows down the curing speed of the epoxy resin, and ensures that the material is still in a suitable working state when it penetrates deep into the crack. At the same time, the design of the auxiliary material hole facilitates the precise control of the addition of the inhibitor, further optimizing the repair process.

[0017] 3. The invention not only provides good waterproof and tensile resistance through the tarpaulin material repair patch, but also simplifies the construction steps and reduces the subsequent maintenance costs. The expansion anchor bolts and adjustable temperature sensing rod design on the repair patch not only ensure that the device is firmly fixed at the crack position, but also can adjust the length of the temperature sensing sleeve according to the specific position and width of the crack, thereby realizing personalized customized repair operations and improving the accuracy and efficiency of the repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 An exploded view of the present invention; Figure 3 It is a front cross-sectional view of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle; Figure 6 For the present invention Figure 3 CC section view of the medium temperature difference conversion sleeve; Figure 7It is a top cross-sectional view of the temperature difference conversion sleeve of the present invention when the flow regulating piston is in an extended state; Figure 8 It is a front cross-sectional view of the temperature sensing rod of the present invention; Fig. 9 This is a schematic diagram of the present invention in use when repairing cracks.

[0019] In the figure: 1. repair patch; 101. expansion anchor; 2. caulking agent injection mechanism; 201. injection syringe; 202. injection piston; 203. second spring; 3. temperature difference sensing mechanism; 301. fixing frame; 302. temperature sensing rod; 3021. temperature sensing sleeve; 3022. temperature sensing piston; 3023. pressure measuring sleeve; 3024. first spring; 3025. liquid storage chamber; 3026. piston chamber; 3027. temperature sensing solution; 3028. external threaded screw rod; 303. internal threaded sleeve; 304. adjusting nut; 4. flow regulating mechanism; 401. temperature difference conversion sleeve; 4011. sliding hole; 4012. injection hole; 402. flow regulating piston; 4021. limiting ring; 4023. auxiliary material hole; 403. inhibitor pipe; 4032. discharge hole; 404. spiral blade. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 9 , a concrete wall crack repair device, comprising a repair patch 1 and a caulking agent injection mechanism 2, the repair patch 1 is provided with a temperature difference sensing mechanism 3 and a flow regulating mechanism 4; The temperature difference sensing mechanism 3 is fixedly mounted on the upper end surface of the repair patch 1. The temperature difference sensing mechanism 3 includes a fixing frame 301 and a temperature sensing rod 302. The temperature sensing rod 302 is detachably mounted on the fixing frame 301. The temperature sensing rod 302 is fixedly connected to the flow regulating mechanism 4. The flow regulating mechanism 4 is fixedly installed between the sealant injection mechanism 2 and the repair patch 1. The flow regulating mechanism 4 includes a temperature difference conversion sleeve 401, a flow regulating piston 402 and an inhibitor tube 403. The temperature difference conversion sleeve 401 is made of elastic metal. The upper end surface of the temperature difference conversion sleeve 401 is provided with an injection hole 4012. The flow regulating piston 402 is slidably installed on the side wall of the injection hole 4012.

[0021] Furthermore, an expansion anchor 101 for fixing is provided at a corner of the repair patch 1 , an external thread is provided at the top of the expansion anchor 101 , and a rotatably connected internal thread sleeve 303 is provided on the fixing frame 301 , and the internal thread sleeve 303 is threadedly connected to the expansion anchor 101 .

[0022] The repair patch 1 is fixed to the cracked wall surface by the expansion anchor 101, and then the fixing frame 301 is fixed to the top of the expansion anchor 101. When the temperature sensing rod 302 is deformed under the influence of temperature, the fixing frame 301 restrains the end of the temperature sensing rod 302 away from the flow regulating mechanism 4, so that the other end of the temperature sensing rod 302 squeezes the temperature difference conversion sleeve 401, causing it to undergo a slight elastic deformation.

[0023] Furthermore, the temperature sensing rod 302 includes a temperature sensing sleeve 3021 and a temperature sensing piston 3022. The temperature sensing sleeve 3021 is made of aluminum alloy or brass. The temperature sensing piston 3022 is inserted into the temperature sensing sleeve 3021 and is slidingly and sealingly connected thereto. A temperature sensing solution 3027 is arranged in the temperature sensing sleeve 3021. The temperature sensing solution 3027 is ethanol, diesel or mercury. A liquid storage chamber 3025 and a piston chamber 3026 are arranged in the temperature sensing sleeve 3021. The diameter of the liquid storage chamber 3025 is greater than the diameter of the piston chamber 3026.

[0024] When the temperature of the temperature sensing sleeve 3021 rises, the temperature sensing solution 3027 in the liquid storage chamber 3025 expands, thereby squeezing the temperature sensing piston 3022, causing the temperature sensing piston 3022 to squeeze the temperature difference conversion sleeve 401. The diameter of the liquid storage chamber 3025 is larger than the diameter of the piston chamber 3026, so that when the liquid is slightly deformed, the temperature sensing piston 3022 can also be greatly displaced.

[0025] Furthermore, a pressure measuring sleeve 3023 is provided on the side of the temperature difference conversion sleeve 401, a first spring 3024 is provided in the pressure measuring sleeve 3023, a temperature sensing piston 3022 is inserted into the pressure measuring sleeve 3023 and elastically connected to the pressure measuring sleeve 3023 through the first spring 3024, and a scale line is provided on the surface of the temperature sensing piston 3022.

[0026] By squeezing the first spring 3024 through the temperature-sensing piston 3022, the rigid deformation of the temperature-sensing rod 302 is converted into elastic deformation, thereby preventing the temperature difference conversion sleeve 401 from being squeezed beyond the elastic limit and unable to recover. At the same time, the current pressure on the temperature difference conversion sleeve 401 can be judged through the scale, thereby determining the opening and closing degree of the internal flow regulating piston 402, so that the position of the flow regulating piston 402 can be adjusted according to the current temperature.

[0027] Furthermore, an external threaded screw 3028 is disposed at the front end of the temperature sensing sleeve 3021 , and a rotatably connected adjusting nut 304 is disposed at the center of the fixing frame 301 , and the external threaded screw 3028 passes through the adjusting nut 304 and is threadedly connected thereto.

[0028] By rotating the adjusting nut 304, the length of the temperature sensing sleeve 3021 can be adjusted to adapt to the position of the crack, and the initial tensioning force of the temperature sensing sleeve 3021 can be adjusted. The pressure of the temperature sensing piston 3022 on the temperature difference conversion sleeve 401 can be adjusted according to the current temperature so that the flow of the injection hole 4012 in its center can match the current temperature.

[0029] Furthermore, the temperature difference conversion sleeve 401 is a hollow tubular structure, hydraulic oil is arranged in the interlayer of the temperature difference conversion sleeve 401, a sliding hole 4011 is arranged on the side wall of the temperature difference conversion sleeve 401, and the flow regulating piston 402 is inserted into the sliding hole 4011 and is slidably connected with the temperature conversion sleeve.

[0030] When the temperature sensing piston 3022 squeezes the temperature difference conversion sleeve 401, it undergoes elastic deformation, thereby squeezing the internal hydraulic oil and causing the flow regulating piston 402 to slide outward, thereby regulating the flow. That is, when the temperature rises, the flow regulating piston 402 extends outward, reducing the diameter of the injection hole 4012 and reducing the flow rate of the epoxy resin, thereby avoiding excessive flow rate, resulting in excessive bubbles in the epoxy resin, or epoxy resin overflowing and causing waste.

[0031] Furthermore, a limiting ring 4021 is provided at the front end of the flow regulating piston 402. The limiting ring 4021 is a semicircular ring structure, and the side end surface of the limiting ring 4021 is a conical structure. The two sets of limiting rings 4021 are closed to form a conical funnel structure.

[0032] When the flow regulating piston 402 extends outward, the two sets of limiting rings 4021 are closed, thereby forming a funnel-shaped limiting structure, which limits the aperture of the injection hole 4012 and reduces the flow of epoxy resin. The conical structure increases the flow rate of the epoxy resin when it flows through this place, generates a certain negative pressure, and sucks the inhibitor in the inhibitor tube 403 into the injection hole 4012, mixes with the epoxy resin, and slows down the solidification speed of the epoxy resin.

[0033] Furthermore, the side wall of the limiting ring 4021 is provided with an auxiliary material hole 4023 which penetrates the side wall of the flow regulating piston 402, and the bottom of the inhibitor tube 403 is provided with a discharge hole 4032, and when the flow regulating piston 402 is fully extended, the auxiliary material hole 4023 is aligned with and connected to the discharge hole 4032.

[0034] When the flow regulating piston 402 is fully extended, the discharge hole 4032 is connected with the auxiliary material hole 4023, so that the inhibitor can be discharged along the discharge hole 4032 to reduce the solidification time of the epoxy resin and avoid the epoxy resin from solidifying quickly at high temperature, which makes the epoxy resin unable to penetrate deep into the crack and affects the repair effect.

[0035] Furthermore, a spiral blade 404 is disposed in the injection hole 4012 .

[0036] The epoxy resin and the polymerization inhibitor are fully mixed by the spiral blades 404, so as to avoid partial agglomeration of the epoxy resin and blocking of the flow channel due to insufficient mixing.

[0037] Furthermore, the repair patch 1 is made of linoleum, and the caulking agent injection mechanism 2 includes an injection syringe 201 , an injection piston 202 and a second spring 203 . The injection syringe 201 and the injection piston 202 are elastically connected via the second spring 203 .

[0038] The repair patch 1 made of tarpaulin can be firmly adhered to the wall surface after baking, and has the functions of waterproofing and stretch resistance, which can effectively reduce the further expansion of cracks and prevent rainwater from seeping into the wall through the cracks. The elastically connected injection piston 202 structure enables the injection piston 202 to continue to feed slowly under the reset action of the second spring 203, without the need for continuous manual operation, thereby improving the convenience of epoxy resin injection.

[0039] When the crack repair device in this embodiment is used, first, ensure that the crack area of ​​the concrete wall has been cleaned and there is no loose material or dust, then lay the repair patch 1 flat on the crack and bake it with a flame spray gun (a common crack repair tool) to make the repair patch 1 firmly adhere to the wall surface, install expansion anchor bolts 101 at the four corners of the repair patch 1 to fix it, drill holes near the crack to install the temperature difference conversion sleeve 401, and then bake it with a low fire to make the repair patch 1 adhere to the bottom of the temperature difference conversion sleeve 401, and then install the pressure measuring sleeve 3023. The fixing frame 301 is fixed on the side wall of the temperature difference conversion sleeve 401 by threading, and then the fixing frame 301 is fixed on the upper end of the expansion anchor bolt 101, so that the front end of the temperature sensing sleeve 3021 passes through the adjusting nut 304, and the pressure of the temperature sensing piston 3022 on the first spring 3024 is adjusted by rotating the adjusting nut 304, so as to adjust the initial position of the flow regulating piston 402, and repeat the above operation until the repair patch 1 is fully covered after being spread, and finally the caulking agent injection mechanism 2 is inserted into the injection hole 4012 of the temperature difference conversion sleeve 401 , the injection piston 202 squeezes the epoxy resin in the injection piston 202 under the action of the second spring 203 to achieve automatic and continuous feeding. As the temperature changes, the temperature difference sensing mechanism 3 prompts the flow regulating piston 402 to automatically adjust the opening size of the injection hole 4012, thereby controlling the flow rate of the resin. When the temperature rises, the piston slides outward to reduce the aperture, reduce the flow rate, and prevent bubble generation and material waste; when the temperature drops, on the contrary, the flow rate is increased to ensure efficiency. When the regulating piston is fully extended, the conical funnel structure formed by the limit ring 4021 not only limits the diameter of the injection hole 4012, but also automatically absorbs the inhibitor and epoxy resin due to the negative pressure effect generated by the conical structure, delaying the curing process and ensuring that the resin has enough time to penetrate into the crack. The spiral blade 404 in the injection hole 4012 continuously stirs during the flow of the resin to ensure that the inhibitor and the epoxy resin are fully mixed, avoid agglomeration, and ensure uniform penetration of the resin in the crack. After the injection is completed, rest for 12-24 hours, replace the epoxy resin injection mechanism, and perform a second injection to improve the repair effect.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete wall crack repair device, comprising a repair patch (1) and a caulking agent injection mechanism (2), characterized in that: The repair patch (1) is provided with a temperature difference sensing mechanism (3) and a flow regulating mechanism (4); The temperature difference sensing mechanism (3) is fixedly mounted on the upper end surface of the repair patch (1), the temperature difference sensing mechanism (3) comprises a fixing frame (301) and a temperature sensing rod (302), the temperature sensing rod (302) is detachably mounted on the fixing frame (301), and the temperature sensing rod (302) is fixedly connected to the flow regulating mechanism (4); The flow regulating mechanism (4) is fixedly installed between the sealant injection mechanism (2) and the repair patch (1), and comprises a temperature difference conversion sleeve (401), a flow regulating piston (402) and an inhibitor tube (403). An injection hole (4012) is provided on the upper end surface of the temperature difference conversion sleeve (401), and the flow regulating piston (402) is slidably installed on the side wall of the injection hole (4012).

2. A concrete wall crack repairing device as claimed in claim 1, characterized in that: An expansion anchor bolt (101) for fixing is arranged at a corner of the repair patch (1), an external thread is arranged at the top of the expansion anchor bolt (101), and a rotatably connected internal thread sleeve (303) is arranged on the fixing frame (301), and the internal thread sleeve (303) is threadedly connected to the expansion anchor bolt (101).

3. A concrete wall crack repairing device as claimed in claim 1, characterized in that: The temperature sensing rod (302) comprises a temperature sensing sleeve (3021) and a temperature sensing piston (3022); the temperature sensing piston (3022) is inserted into the temperature sensing sleeve (3021) and is slidably and sealingly connected thereto; a temperature sensing solution (3027) is arranged in the temperature sensing sleeve (3021); a liquid storage chamber (3025) and a piston chamber (3026) are arranged in the temperature sensing sleeve (3021); the diameter of the liquid storage chamber (3025) is greater than the diameter of the piston chamber (3026).

4. A concrete wall crack repairing device as claimed in claim 3, characterized in that: A pressure measuring sleeve (3023) is arranged on the side of the temperature difference conversion sleeve (401), a first spring (3024) is arranged in the pressure measuring sleeve (3023), the temperature sensing piston (3022) is inserted into the pressure measuring sleeve (3023) and elastically connected thereto via the first spring (3024), and scale lines are arranged on the surface of the temperature sensing piston (3022).

5. A concrete wall crack repairing device as claimed in claim 4, characterized in that: An externally threaded screw (3028) is disposed at the front end of the temperature sensing sleeve (3021), and a rotatably connected adjusting nut (304) is disposed at the center of the fixing frame (301), and the externally threaded screw (3028) passes through the adjusting nut (304) and is threadedly connected thereto.

6. A concrete wall crack repairing device as claimed in claim 1, characterized in that: The temperature difference conversion sleeve (401) is a hollow tubular structure. Hydraulic oil is arranged in the interlayer of the temperature difference conversion sleeve (401). A sliding hole (4011) is arranged on the side wall of the temperature difference conversion sleeve (401). The flow regulating piston (402) is inserted into the sliding hole (4011) and is slidably connected with the temperature conversion sleeve.

7. A concrete wall crack repairing device as claimed in claim 6, characterized in that: A limiting ring (4021) is provided at the front end of the flow regulating piston (402); the limiting ring (4021) is a semicircular ring structure, and the side end surface of the limiting ring (4021) is a conical structure.

8. A concrete wall crack repairing device as claimed in claim 7, characterized in that: The side wall of the limiting ring (4021) is provided with an auxiliary material hole (4023) which is in communication with the side wall of the flow regulating piston (402), and the bottom of the polymerization inhibitor tube (403) is provided with a discharge hole (4032), and when the flow regulating piston (402) is fully extended, the auxiliary material hole (4023) is aligned with and communicates with the discharge hole (4032).

9. A concrete wall crack repairing device as claimed in claim 7, characterized in that: A spiral blade (404) is arranged inside the injection hole (4012).

10. A concrete wall crack repairing device as claimed in claim 1, characterized in that: The repair patch (1) is made of linoleum felt, and the caulking agent injection mechanism (2) comprises an injection syringe (201), an injection piston (202) and a second spring (203), wherein the injection syringe (201) and the injection piston (202) are elastically connected via the second spring (203).

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