Extrusion electromagnetic induction type grouting steel bar connecting sleeve

Abstract

The application discloses a kind of extrusion electromagnetic induction type grouting steel connecting sleeve;Belong to the field of concrete prefabricated component;Including water-absorbing sponge, water-permeable membrane chamber, infrared early warning circuit device and infrared ray electromagnetic induction valve circuit device;The infrared early warning circuit device includes protection resistance two, buzzer, potentiometer two and PNP triode two etc.;The infrared ray electromagnetic induction valve circuit device includes protection resistance one, potentiometer one, PNP triode one and electromagnetic valve etc.;When cement slurry enters sleeve, water-absorbing sponge absorbs water and expands rapidly, extruding cement slurry around steel, ensuring grouting full, at the same time, when sleeve grouting is completed, infrared ray electromagnetic induction valve is automatically inducted and quickly closes into slurry port and slurry discharge port, to prevent slurry backflow and overflow, ensure steel connecting quality.The application solves the problems of grouting sleeve, such as incomplete grouting, backflow, air hole floating, etc., and is more intelligent and automated.

Description

Technical Field

[0001] This invention belongs to the field of precast concrete components and relates to an extrusion electromagnetic induction type grouting rebar connection sleeve. Specifically, it relates to an extrusion electromagnetic induction type grouting rebar connection sleeve for connecting rebars and precast concrete components. Background Technology

[0002] In existing technologies, rebar connecting sleeves have grouting dead zones and are prone to problems such as insufficient grout density and grout backflow. In addition, they are not economical in terms of resources and energy, waste materials in terms of achieving building energy conservation and structural performance, and are often subject to the limitations of construction site and environmental conditions, thereby increasing the number of on-site construction workers. The present invention develops an extrusion electromagnetic induction type grouting rebar connecting sleeve, which can effectively reduce the amount of cement grout used, solve the problem of incomplete grouting, ensure its connection strength, and is more intelligent and automated. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to solve the issues of grouting dead zones and insufficient grout density and grout backflow in existing rebar connection sleeves. The present invention intelligently solves the gripping force and friction of the sleeve and grout material on the connected rebars, thereby improving the firmness of the connection between the rebars and precast concrete components, reducing manual intervention, and solving the grout backflow problem.

[0004] The technical solution of the present invention is: a compression electromagnetic induction type grouting rebar connecting sleeve of the present invention, comprising a sleeve (1), a water-absorbing and expanding sponge (2), an infrared ray electromagnetic induction valve circuit device (8) and an infrared early warning circuit device (13);

[0005] The water-absorbing and expanding sponge (2) is fixedly placed on the upper and lower sides or the left and right sides inside the sleeve (1);

[0006] Water-permeable membrane chambers (4) are installed on the inner walls of the water-absorbing and expanding sponges (2) on both sides. Infrared spotlights (10) and photoresistors (12) are installed at both ends of the water-permeable membrane chamber (4) on one side.

[0007] An infrared spotlight power supply (11) and an infrared warning circuit device (13) are installed on the left and right side walls of the sleeve (1), near the infrared spotlight (10) and the photoresistor (12).

[0008] Furthermore, the infrared warning circuit device (13) includes a second protective resistor (17-2), a buzzer (20), a second potentiometer (16-2), and a second PNP transistor (18-2) connected by a wired line.

[0009] A second power supply (19-2) is also connected to the wired line.

[0010] Furthermore, the infrared spotlight 2 (10) and its compatible infrared spotlight power supply 2 (11) are connected by a wired line, and the photoresistor 2 (12) is connected to the potentiometer 2 (16-2), the protection resistor 2 (17-2), the PNP transistor 2 (18-2), the circuit power supply 2 (19-2), and the buzzer (20) in the infrared warning circuit device (13).

[0011] Furthermore, on the other side, a sleeve (1) with a water-absorbing and expanding sponge (2) and a water-permeable membrane chamber (4) is fixedly installed, and two slurry inlets (14) and slurry outlets (15) are opened through it.

[0012] Furthermore, an infrared spotlight (5) and an infrared spotlight power supply (6) are respectively installed in the sleeve wall on the side near the slurry inlet (14), and a photoresistor (7) is installed in the sleeve wall on the other side near the slurry inlet (14).

[0013] An infrared electromagnetic induction valve circuit device (8) is installed in the sleeve wall between the slurry inlet (14) and the slurry outlet (15).

[0014] Furthermore, the infrared electromagnetic induction valve circuit device (8) includes a protective resistor (17-1), a potentiometer (16-1), a PNP transistor (18-1), and two electromagnetic valves (21) connected by wired lines.

[0015] A circuit power supply (19-1) is also connected to the wired line.

[0016] Furthermore, the infrared spotlight 1 (5) and its compatible infrared spotlight power supply 1 (6) are connected by a wired line, and the photoresistor 1 (7) is connected to the potentiometer 1 (16-1), the protection resistor 1 (17-1), the PNP transistor 1 (18-1), the circuit power supply 1 (19-1), and the two solenoid valves (21) in the infrared ray electromagnetic induction valve circuit device (8).

[0017] Furthermore, electromagnetic induction valves (9) are installed on the inner walls of both the slurry inlet (14) and the slurry outlet (15).

[0018] Furthermore, the electromagnetic valve (21) includes an electromagnet (22) installed inside the electromagnetic valve, and an electromagnetic induction valve (23) and an iron valve (24) are respectively installed on both sides of the electromagnet (22).

[0019] Furthermore, steel bars (3) are threaded through the side walls on both sides of the sleeve (1).

[0020] Furthermore, the properties of the photoresistor 2 (12) in the infrared early warning circuit device (13) are very different from those in the infrared ray electromagnetic induction valve circuit device (8). When there is light, the resistance of the photoresistor 2 (12) in the infrared early warning circuit device (13) decreases, the voltage drop of the potentiometer 2 (16-2) becomes too large, and the voltage on the PNP transistor 2 (18-2) becomes too large, so the circuit is not open. When there is no light, the resistance of the resistor (protective resistor 2 (17-2)) increases, the voltage drop of the potentiometer 2 (16-2) decreases, and the voltage on the PNP transistor 2 (18-2) decreases. At this time, the circuit (circuit power supply 2 (19-2)) is connected, and the buzzer (20) sounds.

[0021] When there is light, the resistance of the photoresistor 1 (7) in the infrared ray electromagnetic induction valve circuit device (8) increases, the voltage drop of potentiometer 1 (16-1) decreases, and the voltage on PNP transistor 1 (18-1) decreases. At this time, the circuit is connected, the electromagnetic valve (21) is energized, and the slurry inlet (14) and slurry outlet (15) are closed. When there is no light, the resistance of the resistor (protective resistor 1 (17-1)) decreases, the voltage drop of potentiometer 1 (16-1) is too large, and the voltage on PNP transistor 1 (18-1) is too large. At this time, the circuit (circuit power supply 1 (19-1)) is not connected, the electromagnetic valve (21) is not energized, and the slurry inlet (14) and slurry outlet (15) are open.

[0022] Working principle: After the sleeve (1) is connected to the reinforcing bar and placed in the predetermined construction position, the red light emitted by the infrared spotlight 1 (5) at the grout inlet (14) shines on the photoresistor 1 (7), the resistance of the photoresistor 1 (7) increases, the voltage drop of the potentiometer 1 (16-1) decreases, and the voltage on the PNP transistor 1 (18-1) decreases. At this time, the circuit is connected, the solenoid valve (21) is energized, and the grout inlet (14) and the grout outlet (15) are closed. When the construction personnel connect the grouting pipe to the grout inlet (14), the grouting pipe blocks the red light emitted by the infrared spotlight 1 (5), and the photoresistor on the other side... When there is no light, the resistance of resistor 1 (7) decreases, the voltage drop of potentiometer 1 (16-1) is too large, and the voltage on PNP transistor 1 (18-1) is too large. At this time, the circuit is not open, the solenoid valve (21) is not powered, the grout inlet (14) and the grout outlet (15) are open, and the cement grout can enter the casing. During the process of the cement grout entering the casing, the water contained in the cement grout seeps into the water-absorbing and expanding sponge (2) through the permeable membrane chamber (4). After absorbing water, the water-absorbing and expanding sponge (2) expands rapidly and squeezes the permeable membrane and cement grout in the limited casing space, so that it fully surrounds the steel reinforcement. As the volume of the water-absorbing and expanding sponge (2) gradually increases, when it just covers the infrared spotlight 2 (10) arranged in the permeable membrane chamber (4) of the infrared early warning circuit device (13), the corresponding photoresistor 2 (12) is not illuminated, its resistance value increases, the voltage drop of potentiometer 2 (16-2) decreases, and the voltage on PNP transistor 2 (18-2) decreases. At this time, the circuit is connected, and the buzzer (20) sounds; to remind the construction personnel outside that the grouting inside the casing has been completed and to remove the grouting pipe in time; and when the grouting pipe When removed, the red light emitted by the infrared spotlight 1 (5) at the grout inlet (14) shines directly onto the photoresistor 1 (7), increasing the resistance of the photoresistor 1 (7), decreasing the voltage drop across the potentiometer 1 (16-1), and decreasing the voltage across the PNP transistor 1 (18-1). At this point, the circuit is connected, the solenoid valve (21) is energized, and the grout inlet (14) and grout outlet (15) quickly close again to prevent backflow of grout and affect the quality of the steel reinforcement connection. This completes the entire process of the extrusion electromagnetic induction type grouting steel reinforcement connection sleeve. Because the grouting sleeve connecting steel reinforcement and precast concrete components has advantages such as saving resources and energy, improving the utilization rate of materials in achieving building energy conservation and structural performance, overcoming the limitations of construction site and environmental conditions on on-site construction, and reducing the number of on-site construction workers, it is widely used in construction engineering.

[0023] The beneficial effects of this invention are as follows: The features of this invention are: 1. It effectively solves the existing problems of incomplete grouting, air pore floating, and grout backflow, and the construction is simple; 2. It is highly intelligent and automated, and the entire process does not require the participation of construction personnel. It is completed automatically, saving time and effort; 3. It innovatively incorporates an intelligent early warning system to promptly remind construction personnel when grouting is completed. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the sleeve of the present invention;

[0025] Figure 2 This is a circuit diagram of the infrared early warning device of the present invention;

[0026] Figure 3 This is the circuit diagram of the infrared ray electromagnetic induction valve device of the present invention;

[0027] Figure 4 This is a schematic diagram of the electromagnetic valve of the infrared electromagnetic induction valve device of the present invention;

[0028] In the diagram, 1 is a sleeve, 2 is a water-absorbing and expanding sponge, 3 is a reinforcing bar, 4 is a water-permeable membrane chamber, 5 is an infrared spotlight one, 6 is an infrared spotlight power supply one, 7 is a photoresistor one, 8 is an infrared electromagnetic induction valve circuit device, 9 is an electromagnetic induction valve, 10 is an infrared spotlight two, 11 is an infrared spotlight power supply two, 12 is a photoresistor two, 13 is an infrared early warning circuit device, 14 is a slurry inlet, 15 is a slurry outlet, 16-1 is a potentiometer one, 16-2 is a potentiometer two, 17-1 is a protective resistor one, 17-2 is a protective resistor two, 18-1 is a PNP transistor one, 18-2 is a PNP transistor two, 19-1 is a circuit power supply one, 19-2 is a circuit power supply two, 20 is a buzzer, 21 is a solenoid valve, 22 is an electromagnet in the solenoid valve, 23 is an electromagnetic induction valve, and 24 is an iron valve. Detailed Implementation

[0029] The specific technical solution of the present invention will be further described in detail below with reference to specific examples.

[0030] The present invention discloses a compression electromagnetic induction type grouting rebar connecting sleeve, comprising a water-absorbing and expanding sponge 2, a water-permeable membrane chamber 2, an infrared early warning circuit device 13, and an infrared ray electromagnetic induction valve circuit device 8; wherein, the infrared early warning circuit device 13 comprises a photoresistor 12, a protective resistor 17-2, a buzzer 20, a potentiometer 16-2, a PNP transistor 18-2, and a circuit power supply 19-2.

[0031] The infrared electromagnetic induction valve circuit device 8 includes a photoresistor 7, a potentiometer 16-1, a protective resistor 17-1, a PNP transistor 18-1, a circuit power supply 19-1, and two electromagnetic valves 21.

[0032] When the cement grout enters the sleeve 1, the water-absorbing and expanding sponge 2 absorbs water and expands rapidly, squeezing the cement grout around the reinforcing bar to ensure full grouting. At the same time, when the sleeve grouting is completed, the infrared ray electromagnetic induction valve circuit device 8 automatically senses and quickly closes the grout inlet 14 and the grout outlet 15 to prevent grout backflow and overflow, ensuring the quality of the reinforcing bar connection.

[0033] Furthermore, the water-absorbing and expanding sponge 2 is arranged on the upper and lower sides or the left and right sides inside the sleeve 1 to squeeze the cement slurry in the middle and ensure that it is in full contact with the steel bar; at the same time, the water-absorbing and expanding sponge 2 should be an opaque material to ensure that as the water-absorbing and expanding sponge 2 rapidly expands, it can block the red light emitted by the infrared spotlight.

[0034] Furthermore, the permeable membrane in the permeable membrane chamber 4 should be made of a high-strength, unbreakable, highly permeable, and opaque material to ensure that when the cement slurry is injected into the sleeve 1, the water can quickly and promptly penetrate into the water-absorbing and expanding sponge 2.

[0035] Furthermore, in the infrared early warning circuit device 13, an infrared spotlight 10 and a photoresistor 12 are arranged in the water-permeable membrane chamber 4, and it is necessary to ensure that the light emitted by the infrared spotlight 10 shines directly on the photoresistor 12.

[0036] Furthermore, in the infrared electromagnetic induction valve circuit device 8, an infrared spotlight 5 and a photoresistor 7 are arranged at the slurry inlet 14 on the inner wall of the sleeve 1, and it is necessary to ensure that the light emitted by the infrared spotlight 5 shines directly on the photoresistor 7.

[0037] Furthermore, in the infrared electromagnetic induction valve circuit device 8, an electromagnet 22 is installed inside the electromagnetic valve 21; when the electromagnet 22 is energized, it is magnetic, and the electromagnetic valve 21 is closed; when it is not energized, the electromagnet 22 is non-magnetic, and the electromagnetic valve 21 is open.

[0038] Furthermore, in the infrared warning circuit device 13, the infrared spotlight 10 is connected to its infrared spotlight power supply (infrared spotlight power supply 11), and the photoresistor 12 is connected to the entire warning device (infrared warning circuit device 13).

[0039] Furthermore, in the infrared electromagnetic induction valve circuit device 8, the infrared spotlight 5 is connected to its infrared spotlight power supply (infrared spotlight power supply 6), and the photoresistor is connected to the entire electromagnetic induction valve circuit (infrared electromagnetic induction valve circuit device 8).

[0040] After the sleeve 1 is connected to the reinforcing bar and placed in the predetermined construction position, the red light emitted by the infrared spotlight 5 at the grout inlet 14 shines on the photoresistor 7, the resistance of the photoresistor 7 increases, the voltage drop of the potentiometer 16-1 decreases, and the voltage on the PNP transistor 18-1 decreases. At this time, the circuit is connected, the solenoid valve 21 is energized, and the grout inlet 14 and the grout outlet 15 are in the closed state.

[0041] When the construction workers connect the grouting pipe to the grout inlet 14, the grouting pipe blocks the red light emitted by the infrared spotlight 5. The photoresistor 7 on the other side is not illuminated, the resistance of the protection resistor 17-1 decreases, the voltage drop of the potentiometer 16-1 is too large, and the voltage on the PNP transistor 18-1 is too large. At this time, the circuit is not open, the solenoid valve 21 is not energized, and the grout inlet 14 and the grout outlet 15 are in the open state, allowing cement grout to enter the casing.

[0042] During the process of cement grout entering the casing, the water contained in the cement grout seeps into the water-absorbing and expanding sponge 2 through the permeable membrane of the permeable membrane chamber 4. After absorbing water, the water-absorbing and expanding sponge 2 expands rapidly, squeezing the permeable membrane and cement grout within the limited casing space, thus fully surrounding the reinforcing steel. As the volume of the water-absorbing and expanding sponge 2 gradually increases, when it just blocks the infrared spotlight 10 arranged in the permeable membrane chamber 4 in the infrared early warning circuit device 13, the corresponding photoresistor 12 is not illuminated, the resistance of the protection resistor 17-2 increases, the voltage drop of the potentiometer 16-2 decreases, and the PNP transistor 18-... When the voltage on 2 decreases, the circuit is connected, and buzzer 20 sounds to remind the construction personnel outside that the grouting inside the sleeve is complete and to remove the grouting pipe in time. When the grouting pipe is removed, the red light emitted by the infrared spotlight 5 at the grout inlet 14 shines on the photoresistor 7, causing the resistance of the photoresistor 7 to increase. This reduces the voltage drop across the potentiometer 16-1, resulting in a decrease in the voltage across the PNP transistor 18-1. At this point, the circuit is connected, the solenoid valve 21 is energized, and the grout inlet 14 and grout outlet 15 quickly close again to prevent grout backflow and ensure the quality of the rebar connection. This completes the entire process of the extrusion electromagnetic induction type grouting rebar connection sleeve.

Claims

1. A compression electromagnetic induction type grouting rebar connecting sleeve, characterized in that: It includes a sleeve (1), a water-absorbing and expanding sponge (2), an infrared electromagnetic induction valve circuit device (8), and an infrared early warning circuit device (13). The water-absorbing and expanding sponge (2) is fixedly placed on the upper and lower sides or the left and right sides inside the sleeve (1); Water-permeable membrane chambers (4) are installed on the inner walls of the water-absorbing and expanding sponges (2) on both sides. Infrared spotlights (10) and photoresistors (12) are installed at both ends of the water-permeable membrane chamber (4) on one side. On the left and right side walls of the sleeve (1), near the infrared spotlight two (10) and the photoresistor two (12), there are matching infrared spotlight power supply two (11) and infrared early warning circuit device (13). On the other side, a sleeve (1) with a water-absorbing and expanding sponge (2) and a water-permeable membrane chamber (4) is fixedly installed. Two slurry inlets (14) and slurry outlets (15) are opened through the sleeve (1). An infrared spotlight (5) and an infrared spotlight power supply (6) are respectively installed in the sleeve wall on the side near the slurry inlet (14), and a photoresistor (7) is installed in the sleeve wall on the other side near the slurry inlet (14). An infrared electromagnetic induction valve circuit device (8) is installed in the sleeve wall between the slurry inlet (14) and the slurry outlet (15). The infrared electromagnetic induction valve circuit device (8) includes a protection resistor (17-1), a potentiometer (16-1), a PNP transistor (18-1), and two electromagnetic valves (21) connected by wired lines. A circuit power supply (19-1) is also connected to the wired line.

2. The extrusion electromagnetic induction type grouting rebar connecting sleeve according to claim 1, comprising a sleeve, characterized in that: The infrared early warning circuit device (13) includes a second protective resistor (17-2), a buzzer (20), a second potentiometer (16-2), and a second PNP transistor (18-2) connected by a wired line. A second power supply (19-2) is also connected to the wired line.

3. A compression electromagnetic induction type grouting rebar connecting sleeve according to claim 1, comprising a sleeve, characterized in that: The infrared spotlight 2 (10) and its matching infrared spotlight power supply 2 (11) are connected by a wired line. The photoresistor 2 (12) is connected to the potentiometer 2 (16-2), the protection resistor 2 (17-2), the PNP transistor 2 (18-2), the circuit power supply 2 (19-2), and the buzzer (20) in the infrared early warning circuit device (13).

4. A compression electromagnetic induction type grouting rebar connecting sleeve according to claim 1, comprising a sleeve, characterized in that: The infrared spotlight 1 (5) and its matching infrared spotlight power supply 1 (6) are connected by a wired line. The photoresistor 1 (7) is connected to the potentiometer 1 (16-1), the protection resistor 1 (17-1), the PNP transistor 1 (18-1), the circuit power supply 1 (19-1), and the two solenoid valves (21) in the infrared ray electromagnetic induction valve circuit device (8).

5. A compression electromagnetic induction type grouting rebar connection sleeve according to claim 1, comprising a sleeve, characterized in that: Electromagnetic induction valves (9) are installed on the inner wall of one side of the slurry inlet (14) and the slurry outlet (15).

6. The extrusion electromagnetic induction type grouting rebar connecting sleeve according to claim 1, characterized in that: The electromagnetic valve (21) includes an electromagnet (22) installed inside the electromagnetic valve, and an electromagnetic induction valve (23) and an iron valve (24) are respectively installed on both sides of the electromagnet (22).

7. The extrusion electromagnetic induction type grouting rebar connecting sleeve according to claim 1, characterized in that: Steel bars (3) are threaded through the side walls on both sides of the sleeve (1).

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