A method for treating construction joints of concrete structures under complex working conditions

Abstract

The invention discloses a method for treating construction joints of concrete structures under complex working conditions, including the steps of: opening a feed port, pouring abrasives, and then closing a cover plate, pressing a power switch to energize a high-pressure water pump, pressing a micro-electric switch to put the interlayer in a power-off state, adjusting the position of a gun body to align it with a construction joint, pulling a trigger for a few seconds and then closing it, detecting whether the construction joint treatment state meets the requirements, if it meets the requirements, releasing the micro-electric switch and formally starting the construction joint treatment; if not, rotating an adjustment knob to adjust the power of the high-pressure water pump and continuing to detect again until it meets the requirements, etc. The advantages are: the high-pressure water flow generated by the high-pressure water pump is combined with abrasives to achieve effective treatment of the construction joint, and the present application provides a mixing bin so that the abrasives and the water flow have sufficient time to mix, thereby avoiding the situation where the sprayed high-pressure water flow has different degrees of treatment of the construction joint due to the unevenness of the local abrasives.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a method for processing construction joints of a concrete structure under complex working conditions. Background Art

[0002] During the concrete pouring process, the concrete is poured in sections due to design requirements or construction needs. When the first poured concrete exceeds the initial setting time, the later poured concrete cannot be poured directly. A gap must be left between the two, which is the construction joint. Before pouring, the construction joint must be roughened, that is, a "cutting axe" tool is used to chisel out the completed concrete structure surface. The purpose is to make the concrete of the construction surface in the two construction stages firmly bonded. Afterwards, the cement film, loose stones and weak concrete layer must be removed, and the joint must be fully moistened and rinsed, and no water should be allowed to accumulate.

[0003] The current technical summary of the method used to solve the problem of roughening is manual electric drilling or manual roughening. Manual electric drilling or manual roughening has the disadvantages of taking a long time, low production efficiency, high labor costs due to multiple points of roughening, and cannot be effectively roughened when there are small angle corners and steel mesh obstructions, such as below the foundation concrete bottom slab waterstop steel plate and the lower part of the basement top slab waterstop steel plate. For this reason, we proposed a method for treating construction joints of concrete structures under complex working conditions by completing roughening through a high-pressure water pump. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a method for treating construction joints of concrete structures under complex working conditions.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a method for treating a construction joint of a concrete structure under complex working conditions, comprising the following steps:

[0006] S1. Open the feed port, pour in the abrasive, and close the cover.

[0007] S2. Press the power switch to power on the high-pressure water pump, press the micro-switch to power off the interlayer, adjust the position of the gun body to align it with the construction joint, pull the trigger for a few seconds and then close it, and check whether the construction joint treatment status meets the requirements. If it meets the requirements, release the micro-switch and officially start the construction joint treatment; if not, turn the adjustment knob to adjust the power of the high-pressure water pump and continue to test again until it meets the requirements;

[0008] S3, turn on the motor, hold the gun body and slowly adjust the direction of the gun body until the entire construction joint is processed;

[0009] The apparatus used in the above treatment method includes a machine body, a tube body is connected to the machine body, and a gun body is connected to one end of the tube body away from the machine body. The machine body can pump water into the tube body, and a high-pressure water flow can be sprayed out by pressing a trigger on the gun body;

[0010] A high-pressure water pump is arranged inside the machine body, one end of the high-pressure water pump is connected to a water inlet pipe, the other end of the high-pressure water pump is connected to a mixing chamber, the end of the mixing chamber away from the high-pressure water pump is connected to a water outlet pipe, the water outlet pipe is connected to the pipe body, an adjusting knob for adjusting the power of the high-pressure water pump is arranged on the machine body, a power switch for controlling the power supply of the high-pressure water pump is arranged on the machine body, and a plurality of pulleys are fixedly connected to the bottom of the machine body.

[0011] In the above-mentioned method for treating construction joints of concrete structures under complex working conditions, a feed port is provided on the upper wall of the machine body 1, a silo is fixedly connected to the interior of the machine body, abrasive enters the silo through the feed port, and a uniform discharge device is connected to the silo and the mixing chamber.

[0012] In the above-mentioned method for processing construction joints of concrete structures under complex working conditions, the uniform discharge device includes a motor, the output end of the motor is fixedly connected to a synchronous wheel, the inner wall of the body is rotatably connected to a rotating wheel through a pin shaft, the synchronous wheel and the rotating wheel are jointly sleeved with a synchronous belt, a rotating sleeve is coaxially fixedly connected to the rotating wheel, a magnetic core is sleeved inside the rotating sleeve, and the two magnetic poles of the magnetic core are respectively located at the upper and lower ends.

[0013] In the above-mentioned method for treating construction joints of concrete structures under complex working conditions, the lower end of the silo abuts against the side wall of the rotating sleeve, the magnetic core is fixedly connected to the inner wall of the body, and the side wall of the rotating sleeve is provided with multiple groups of feeding components.

[0014] In the above-mentioned method for processing construction joints of concrete structures under complex working conditions, the feeding assembly includes a slide groove opened on the inner wall of the rotating sleeve, a slider is slidably connected in the slide groove, and the magnetic pole of the slider close to one end of the magnetic core is the same as the magnetic pole on the lower side of the magnetic core.

[0015] In the above-mentioned method for treating construction joints of concrete structures under complex working conditions, the side wall of the feed port is rotatably connected with a cover plate. When the cover plate is covered on the feed port, gas cannot escape through the gap between the two. The synchronous wheel is connected with a pumping assembly for pumping air into the silo.

[0016] In the above-mentioned method for treating construction joints of concrete structures under complex working conditions, the pump air assembly includes a pump air pipe fixed on the side wall of the silo, the side wall of the pump air pipe is fixedly connected with an air inlet pipe, a compression air hole is provided at the connection between the pump air pipe and the silo, a piston plate is sealingly and slidingly connected inside the pump air pipe, a pressure rod is fixedly connected to the piston plate, and a spring is placed on the end of the piston plate away from the pressure rod.

[0017] In the above-mentioned method for treating construction joints of concrete structures under complex working conditions, the pressure rod passes through the pump air pipe, the synchronous wheel is coaxially fixedly connected to a rotating wheel, and a plurality of rotating plates are fixedly connected to the side wall of the rotating wheel. The rotation of the rotating plates can drive the pressure rod to move.

[0018] In the above-mentioned method for treating construction joints of concrete structures under complex working conditions, a hollow interlayer is provided on the side wall of the tube body, and electrorheological fluid is filled in the interlayer. A micro-electric switch is also provided on the gun body, and the micro-electric switch controls the on and off of the current of the electrorheological fluid.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The present application proposes a construction joint treatment method. The present application uses a high-pressure water flow generated by a high-pressure water pump in combination with abrasives to achieve effective treatment of the construction joint. The present application also sets a mixing bin so that the abrasive and the water flow have sufficient time to mix, thereby avoiding the situation where the local unevenness of the abrasive causes the sprayed high-pressure water flow to have different degrees of treatment on the construction joint.

[0021] 2. In the present application, components such as a pump air pipe are provided. The rotating plate rotates to move the pressure rod to the left, and the air in the pump air pipe is pumped into the silo. When the rotating plate does not move the pressure rod, the piston plate is reset under the action of the spring. Therefore, when the piston plate is reset to the left and right of the spring, the outside air enters the pump air pipe. This repetition can ensure that there is a relatively obvious positive pressure in the silo, and ensure that the material in the silo can be smoothly pumped into the chute;

[0022] 1. Electrorheological fluid is arranged in the interlayer, and the micro-electric switch controls the power supply. When powered on, it is in a solid-like property with extremely high shear strength, that is, it cannot produce deformation. At this time, the staff does not need to use a lot of force to hold the gun body. When adjusting the position of the gun body, they only need to control the micro-electric switch to cut off the power of the electrorheological fluid. After the electrorheological fluid returns to liquid properties, they need to hold the gun body tightly, which greatly saves the physical strength of the construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a middle body of a method for treating construction joints of concrete structures under complex working conditions proposed by the present invention;

[0024] Figure 2 It is a cross-sectional schematic diagram of a machine body in a method for treating a construction joint of a concrete structure under complex working conditions proposed by the present invention;

[0025] Figure 3 For the present invention Figure 2 A local enlarged schematic diagram in FIG.

[0026] Figure 4This is a partially enlarged schematic diagram of a pipe body in a method for treating construction joints of a concrete structure under complex working conditions proposed by the present invention.

[0027] In the figure: 1 body, 2 tube body, 3 gun body, 4 adjustment knob, 5 power switch, 6 feed port, 7 pulley, 8 high-pressure water pump, 9 mixing chamber, 10 water inlet pipe, 11 silo, 12 water outlet pipe, 13 cover plate, 14 micro switch, 15 synchronous wheel, 16 rotating sleeve, 17 synchronous belt, 18 magnetic core, 19 slide groove, 20 slider, 21 feed pipe, 22 rotating wheel, 23 rotating plate, 24 pump air pipe, 25 air inlet pipe, 26 pressure hole, 27 piston plate, 28 pressure rod, 29 spring, 201 interlayer. DETAILED DESCRIPTION

[0028] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Example

[0029] Reference Figure 1-4 A method for treating construction joints of a concrete structure under complex working conditions comprises the following steps:

[0030] S1, open the feed port 6, pour in the abrasive, and then close the cover plate 13,

[0031] S2, press the power switch 5 to power on the high-pressure water pump 8, press the micro-switch 14 to put the interlayer 201 in a power-off state, adjust the position of the gun body 3 to align it with the construction joint, pull the trigger for a few seconds and then close it, and check whether the construction joint treatment state meets the requirements. If it meets the requirements, release the micro-switch 14 and officially start the construction joint treatment; if not, rotate the adjustment knob 4 to adjust the power of the high-pressure water pump 8 and continue to test again until it meets the requirements;

[0032] S3, start the motor, hold the gun body 3 and slowly adjust the direction of the gun body 3 until the entire construction joint is processed;

[0033] The apparatus used in the above treatment method includes a machine body 1, a tube body 2 is connected to the machine body 1, and a gun body 3 is connected to the end of the tube body 2 away from the machine body 1. The machine body 1 can pump water into the tube body 2, and the high-pressure water flow can be sprayed out by pressing the trigger on the gun body 3;

[0034] A high-pressure water pump 8 is arranged inside the body 1, one end of the high-pressure water pump 8 is connected to a water inlet pipe 10, the other end of the high-pressure water pump 8 is connected to a mixing chamber 9, the end of the mixing chamber 9 away from the high-pressure water pump 8 is connected to a water outlet pipe 12, the water outlet pipe 12 is connected to the pipe body 2, an adjusting knob for adjusting the power of the high-pressure water pump 8 is arranged on the body 1, a power switch 5 for controlling the power supply of the high-pressure water pump 8 is arranged on the body 1, a plurality of pulleys 7 are fixedly connected to the bottom of the body 1, and a brake device is arranged on the pulley 7 to facilitate fixing the body 1 at a certain position, which is the prior art and will not be elaborated here.

[0035] The upper wall of the machine body 1 is provided with a feed port 6, and a silo 11 is fixedly connected to the inside of the machine body 1. The abrasive enters the silo 11 through the feed port 6. The silo 11 and the mixing chamber 9 are connected to a uniform discharge device. A discharge pipe 21 is provided above the mixing chamber 9, and the discharge pipe 21 is connected to the uniform discharge device. The uniform discharge device includes a motor, and a synchronous wheel 15 is fixedly connected to the output end of the motor. A rotating wheel is rotatably connected to the inner wall of the machine body 1 through a pin shaft. The synchronous wheel 15 and the rotating wheel are jointly sleeved with a synchronous belt 17. A rotating sleeve 16 is coaxially fixedly connected to the rotating wheel. A magnetic core 18 is sleeved inside the rotating sleeve 16, and two magnetic poles of the magnetic core 18 are respectively located at the upper and lower ends. The slider 20 located in the slide groove 19 on the upper side of the magnetic core 18 is located at the bottom of the slide groove 19 due to the magnetic attraction force, while the slider located at the lower side of the magnetic core 18 is located at the top of the slide groove 19 (i.e., the end away from the magnetic core 18) due to the magnetic repulsion force, so that the slider 20 located above will move downward to draw the abrasive in the silo 11 into the slide groove 19.

[0036] The lower end of the silo 11 abuts against the side wall of the rotating sleeve 16, the magnetic core 18 is fixedly connected to the inner wall of the body 1, and the side wall of the rotating sleeve 16 is provided with multiple groups of feeding components. The feeding component includes a chute 19 provided on the inner wall of the rotating sleeve 16, and a slider 20 is slidably connected in the chute 19, and the magnetic pole of the slider 20 close to the end of the magnetic core 18 is the same as the magnetic pole of the lower side of the magnetic core 18. The slider 20 located at the top will move downward to draw the abrasive in the silo 11 into the chute 19, and conversely, when the rotating sleeve 16 rotates to move the chute 19 with the abrasive to the bottom, the magnetic repulsion will push the slider 20 downward, thereby pushing the abrasive into the mixing chamber 9, ensuring that even if there is a large pressure inside the mixing chamber 9, the abrasive can still be normally transported to the mixing chamber 9 for mixing.

[0037] The side wall of the feed port 6 is rotatably connected with a cover plate 13. When the cover plate 13 is covered on the feed port 6, gas cannot escape through the gap between the two. The synchronous wheel 15 is connected with a pumping assembly for pumping air to the silo 11. The outer wall of the rotating sleeve 16 is provided with a side plate to prevent abrasive leakage, and its two ends are respectively fixed to the feed pipe 21 and the side wall of the silo 11, which can prevent abrasive leakage in the chute 19 located in the middle.

[0038] The pump air assembly includes a pump air pipe 24 fixed to the side wall of the silo 11, the side wall of the pump air pipe 24 is fixedly connected with an air inlet pipe 25, a compression hole 26 is provided at the connection between the pump air pipe 24 and the silo 11, a piston plate 27 is sealingly and slidingly connected inside the pump air pipe 24, a pressure rod 28 is fixedly connected to the piston plate 27, and a spring 29 is placed on the end of the piston plate 27 away from the pressure rod 28. The pressure rod 28 passes through the pump air pipe 24, and the synchronous wheel 15 is coaxially fixedly connected to the rotating wheel 22. The side wall of the rotating wheel 22 is fixedly connected to multiple rotating plates 23. The rotation of the rotating plate 23 can push the pressure rod 28 to move, and the slider 20 located above will move downward to draw the abrasive in the silo 11 into the chute 19. Conversely, when the rotating sleeve 16 rotates to move the chute 19 with the abrasive to the bottom, the magnetic repulsion force will push the slider 20 to move downward, thereby pushing the abrasive into the mixing chamber 9, ensuring that even if there is a large pressure inside the mixing chamber 9, the abrasive can still be normally transported to the mixing chamber 9 for mixing.

[0039] The side wall of the tube body 2 is provided with a hollow interlayer 201, and the interlayer 201 is filled with electrorheological fluid. A micro-electric switch 14 is also provided on the gun body 3, and the micro-electric switch 14 controls the current on and off of the electrorheological fluid. The staff does not need to use a lot of force to hold the gun body. When adjusting the position of the gun body 3, they only need to control the micro-electric switch 14 to cut off the power of the electrorheological fluid. After the electrorheological fluid restores its liquid properties, they need to hold the gun body tightly, which greatly saves the physical strength of the construction workers.

[0040] In the method of the present invention, when the machine body 1 is in use, the abrasive enters the silo 11 through the feed port 6, the motor drives the synchronous wheel 15 to rotate, and the synchronous wheel 15 drives the rotating sleeve 16 to rotate through the synchronous belt 17. The slider 20 located in the slide groove 19 on the upper side of the magnetic core 18 is located at the bottom of the slide groove 19 due to the magnetic attraction force, while the slider located at the lower side of the magnetic core 18 is located at the top of the slide groove 19 (i.e., the end away from the magnetic core 18) due to the magnetic repulsion force, so that the slider 20 located at the top will move downward to draw the abrasive in the silo 11 into the slide groove 19, while when the rotating sleeve 16 rotates to move the slide groove 19 with the abrasive to the bottom, the magnetic repulsion force will push the slider 20 to move downward, thereby pushing the abrasive into the mixing chamber 9, ensuring that even if there is a large pressure inside the mixing chamber 9, the abrasive can still be normally transported to the mixing chamber 9 for mixing.

[0041] In order to ensure that the material in the silo 11 can smoothly enter the chute 19, a pump air pipe 24 and other components are provided in the present application. The motor drives the rotating wheel 22 and the rotating plate 23 to rotate. The rotating plate 23 rotates to move the pressure rod 28 to the left. The pressure rod 28 moves to the left and can drive the piston plate 27 to move left, so that the air in the pump air pipe 24 is pumped into the silo 11. When the rotating plate 23 does not move the pressure rod 28, the piston plate 27 is reset under the action of the spring 29. It is worth noting that in this embodiment One-way valves are provided at the medium-pressure air hole 26 and the air inlet pipe 25. The one-way valve at the pressure air hole 26 only allows air to enter the silo 11 from the pump air pipe 24 in one direction, and the one-way valve at the air inlet pipe 25 only allows air to enter the pump air pipe 24 from the outside in one direction; therefore, when the piston plate 27 is reset under the spring 29, the outside air enters the pump air pipe 24. This repeated operation can ensure that there is a relatively obvious positive pressure in the silo 11, ensuring that the material in the silo 11 can be smoothly pumped into the chute 19.

[0042] Electrorheological fluid is arranged in the interlayer 201, and the micro-electric switch 14 controls the on and off of the power supply of the controller. When powered on, it is in a solid-like property with extremely high shear strength, that is, it cannot produce deformation. At this time, the staff does not need to use a lot of force to hold the gun body. When adjusting the position of the gun body 3, they only need to control the micro-electric switch 14 to cut off the power of the electrorheological fluid. After the electrorheological fluid returns to liquid properties, they need to hold the gun body tightly, which greatly saves the physical strength of the construction workers.

[0043] Although the terms 1 body, 2 pipe body, 3 gun body, 4 adjustment knob, 5 power switch, 6 feed port, 7 pulley, 8 high pressure water pump, 9 mixing chamber, 10 water inlet pipe, 11 silo, 12 water outlet pipe, 13 cover plate, 14 micro switch, 15 synchronous wheel, 16 rotating sleeve, 17 synchronous belt, 18 magnetic core, 19 slide groove, 20 slider, 21 feed pipe, 22 rotating wheel, 23 rotating plate, 24 pump air pipe, 25 air inlet pipe, 26 air pressure hole, 27 piston plate, 28 pressure rod, 29 spring, 201 interlayer are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A method for treating construction joints of concrete structures under complex working conditions, characterized in that: The following steps are involved: S1. Open the feed port (6), pour in the abrasive, and then close the cover plate (13). S2, pressing the power switch (5) to energize the high-pressure water pump (8), pressing the micro-switch (14) to put the interlayer (201) in a power-off state, adjusting the position of the gun body (3) so that it is aligned with the construction joint, pulling the trigger for a few seconds and then closing it, and checking whether the construction joint treatment state meets the requirements. If it meets the requirements, releasing the micro-switch (14) and officially starting the construction joint treatment; if not, rotating the adjustment knob (4) to adjust the power of the high-pressure water pump (8) and continue to test again until it meets the requirements; S3, turning on the motor, holding the gun body (3) and slowly adjusting the direction of the gun body (3) until the entire construction joint is processed; The apparatus used in the above-mentioned treatment method comprises a machine body (1), the machine body (1) is connected to a tube body (2), the end of the tube body (2) away from the machine body (1) is connected to a gun body (3), the machine body (1) is capable of pumping water into the tube body (2), and pressing a trigger on the gun body (3) can spray out a high-pressure water flow; A high-pressure water pump (8) is arranged inside the machine body (1), one end of the high-pressure water pump (8) is connected to a water inlet pipe (10), the other end of the high-pressure water pump (8) is connected to a mixing chamber (9), the end of the mixing chamber (9) away from the high-pressure water pump (8) is connected to a water outlet pipe (12), the water outlet pipe (12) is connected to the pipe body (2), an adjusting knob for adjusting the power of the high-pressure water pump (8) is arranged on the machine body (1), a power switch (5) for controlling the power supply of the high-pressure water pump (8) is arranged on the machine body (1), and a plurality of pulleys (7) are fixedly connected to the bottom of the machine body (1); The upper wall of the machine body (1) is provided with a feed port (6), the interior of the machine body (1) is fixedly connected with a silo (11), the abrasive enters the silo (11) through the feed port (6), and the silo (11) and the mixing chamber (9) are connected together with a uniform discharge device; The uniform material discharge device comprises a motor, the output end of the motor is fixedly connected to a synchronous wheel (15), the inner wall of the body (1) is rotatably connected to a rotating wheel via a pin shaft, the synchronous wheel (15) and the rotating wheel are jointly sleeved with a synchronous belt (17), a rotating sleeve (16) is coaxially fixedly connected to the rotating wheel, a magnetic core (18) is sleeved inside the rotating sleeve (16), and two magnetic poles of the magnetic core (18) are respectively located at the upper and lower ends; The lower end of the silo (11) abuts against the side wall of the rotating sleeve (16), the magnetic core (18) is fixedly connected to the inner wall of the machine body (1), and the side wall of the rotating sleeve (16) is provided with a plurality of feeding components; The feed assembly comprises a slide groove (19) formed on the inner wall of the rotating sleeve (16), a slider (20) being slidably connected in the slide groove (19), and a magnetic pole at one end of the slider (20) close to the magnetic core (18) being the same as a magnetic pole at the bottom of the magnetic core (18); The side wall of the feed port (6) is rotatably connected to a cover plate (13), and when the cover plate (13) covers the feed port (6), gas cannot escape through the gap between the two. The synchronous wheel (15) is connected to an air pumping assembly for pumping air into the silo (11); The pump air assembly comprises a pump air pipe (24) fixed to the side wall of the silo (11), the side wall of the pump air pipe (24) is fixedly connected to an air inlet pipe (25), a pressure hole (26) is provided at the connection between the pump air pipe (24) and the silo (11), a piston plate (27) is sealingly and slidably connected inside the pump air pipe (24), a pressure rod (28) is fixedly connected to the piston plate (27), and a spring (29) is placed at one end of the piston plate (27) away from the pressure rod (28); The pressure rod (28) passes through the pump air pipe (24); the synchronous wheel (15) is coaxially fixedly connected to the rotating wheel (22); a plurality of rotating plates (23) are fixedly connected to the side wall of the rotating wheel (22); the rotating plates (23) rotate to push the pressure rod (28) to move.

2. A method for treating a construction joint of a concrete structure under complex working conditions according to claim 1, characterized in that: The side wall of the tube body (2) is provided with a hollow interlayer (201), and the interlayer (201) is filled with electrorheological fluid. The gun body (3) is also provided with a micro-electric switch (14), and the micro-electric switch (14) controls the on and off of the current of the electrorheological fluid.

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