Carbonization depth testing device for concrete strength detection

Abstract

The utility model discloses a carbonization depth testing device for concrete strength detection. The carbonization depth testing device mainly comprises a measuring instrument, an upper spring telescopic rod, a lower spring telescopic rod, a hole cleaning mechanism and a liquid spraying mechanism, a motor is arranged in the measuring instrument, the output end of the motor is fixedly connected with a punching rod, a drill bit is arranged at the end, away from the motor, of the punching rod, and the upper spring telescopic rod and the lower spring telescopic rod contract to enable the drill bit to make contact with the concrete wall face to conduct drilling operation. The hole cleaning mechanism and the liquid spraying mechanism are driven to perform cleaning and liquid spraying on the detection hole through contraction and reset of the upper spring telescopic rod and the lower spring telescopic rod; the concrete carbonation depth detection device solves the problems that the labor intensity of operators is high and the detection device is not easy to carry in concrete carbonation depth detection operation; operation efficiency can be improved, and manpower labor can be reduced.

Description

Technical Field

[0001] The present application relates to the field of concrete testing, and in particular to a carbonization depth testing device for concrete strength testing. Background Art

[0002] Concrete is widely used in housing construction, infrastructure construction, highways and bridges, and other fields, and has long been an integral part of people's lives. Concrete boasts numerous advantages, including high strength, durability, fire resistance, and flexible construction. It possesses high strength under compression and can withstand significant pressure and loads. Therefore, testing various concrete parameters has become an essential process. Carbonates in the cement matrix of concrete can be decomposed into calcium carbonate and water by carbon dioxide and moisture, a process known as carbonation. The depth of carbonation significantly affects concrete strength. Current methods for testing the depth of concrete carbonation require operators to individually use different tools for drilling, cleaning, spraying with phenolphthalein alcohol solution, and performing depth testing. These numerous and difficult-to-carry tools are labor-intensive and inconvenient to operate.

[0003] For example, the publication number CN215449001U discloses a multifunctional concrete carbonation depth meter, which comprises a carbonation depth meter assembly and a drilling assembly, wherein the carbonation depth meter assembly is fixedly connected to the drilling assembly, and the drilling assembly comprises a protective shell, a slide, a slider, a connecting plate, a motor, and a drill bit. The aforementioned carbonation depth meter facilitates drilling and controlling the drilling depth only through the provided drill bit and screw, but cannot solve the problem of simultaneously facilitating hole cleaning and liquid spraying. Therefore, the present application designs a carbonation depth test device for concrete strength testing that integrates drilling, emptying, liquid spraying, and detection, is simple to operate, easy to carry, and can reduce the labor intensity of operators. Utility Model Content

[0004] The purpose of the utility model is to provide a carbonization depth testing device for concrete strength testing, aiming to solve the above-mentioned problems.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a carbonation depth testing device for testing concrete strength, comprising a measuring instrument, an upper spring telescopic rod, a lower spring telescopic rod, a hole cleaning mechanism, and a liquid spraying mechanism for spraying liquid into the testing hole; the upper spring telescopic rod and the lower spring telescopic rod are both plugged into the side of the measuring instrument and symmetrically arranged; one end of the hole cleaning mechanism is plugged into the measuring instrument, and the other end of the hole cleaning mechanism is fixedly connected to the upper spring telescopic rod; one end of the liquid spraying mechanism is fixedly connected to the lower spring telescopic rod, and the other end of the liquid spraying mechanism abuts the side of the measuring instrument; a motor is provided inside the measuring instrument, an output end of the motor extends to the side of the measuring instrument, a punching rod is fixedly connected to the output end of the motor, a drill bit is provided at the end of the punching rod away from the motor, and the punching rod is arranged between the upper spring telescopic rod and the lower spring telescopic rod; the upper spring telescopic rod and the lower spring telescopic rod retract to allow the drill bit to contact the concrete wall surface, causing the drill bit to drill a hole, and the contraction and resetting of the upper spring telescopic rod and the lower spring telescopic rod drive the hole cleaning mechanism and the liquid spraying mechanism to clean and spray liquid into the drill hole. Control buttons are provided on the end face of the measuring instrument and the side away from the punching rod. A display screen is also provided on the cross section of the measuring instrument. A liquid pot is plugged into the lower end of the measuring instrument. The surface of the drill bit is provided with a threaded protrusion to improve the crushing effect of concrete.

[0006] The upper spring telescopic rod is used to drive the hole cleaning mechanism to extract air during drilling, and blow air to clear the detection hole when releasing it. The lower spring telescopic rod is used to drive the liquid spraying mechanism to spray liquid on the detection hole, so that the operator does not need to change tools and can perform the pre-step of depth detection while drilling, which reduces the labor intensity of the operator and makes the device more convenient to carry.

[0007] Furthermore, the hole cleaning mechanism includes an air cylinder, an air nozzle, an L-shaped push rod, and a first piston; one end of the air cylinder is plugged into the side of the measuring instrument, the first piston is arranged inside the air cylinder, the air nozzle is arranged downwardly at the end of the air cylinder away from the measuring instrument, the end of the short handle of the L-shaped push rod is fixedly connected to the end of the upper spring telescopic rod away from the measuring instrument, and the long handle of the L-shaped push rod extends into the air cylinder and is fixedly connected to the middle of the first piston. The L-shaped push rod drives the first piston to draw air through the air nozzle when the upper spring telescopic rod contracts, and blows air into the inspection hole when the upper spring telescopic rod is stretched after drilling is completed. This allows the inspection hole to be cleaned after the drilling operation is completed, without the need to change tools or perform additional operations, thereby improving work efficiency and reducing the time required for single-hole inspection.

[0008] Further, liquid spraying mechanism comprises fluid cylinder, liquid mouth, push rod, second piston, hose, tension spring and connecting rod; Fluid cylinder one end is fixedly connected with lower spring telescopic rod by connecting rod, fluid cylinder is communicated with liquid pot by hose, liquid mouth is tilted upwards and is arranged on fluid cylinder away from measuring instrument one end, second piston is arranged on fluid cylinder inside, push rod one end is fixedly connected with second piston, tension spring one end is fixedly connected with second piston, tension spring the other end and fluid cylinder are fixedly connected near the inwall of measuring instrument one side, hose and fluid cylinder junction are provided with the first one-way valve, fluid cylinder and liquid mouth junction are provided with the second one-way valve. Drive the second piston by being provided with and coordinate tension spring that the detection liquid in liquid pot is extracted, and make measuring instrument drive push rod by the contraction of lower spring telescopic rod that the detection liquid in fluid cylinder is sprayed into detection hole, make operator press measuring instrument again after drilling and can complete liquid spraying operation, be more convenient for operator operation.

[0009] Furthermore, a drive column is provided at the bottom of the measuring instrument, extending through the measuring instrument and rotatably connected to the interior of the measuring instrument. A knob is provided on the end of the drive column away from the drilling rod, and the other end of the drive column abuts the push rod. The drive column has a slot of the same shape as the push rod, allowing the push rod to snap into the drive column. The knob can be used to rotate the drive rod, thereby changing the position of the slot and the push rod. This allows the push rod to snap into the slot when the operator presses the measuring instrument to perform the drilling operation, without triggering the spray.

[0010] Furthermore, a gasket is provided at one end of the upper spring telescopic rod and the lower spring telescopic rod away from the measuring instrument.

[0011] Compared with the existing technology, it has the following beneficial effects:

[0012] The utility model provides a carbonation depth testing device for concrete strength testing, wherein an upper spring telescopic rod is provided to drive a hole cleaning mechanism to extract air when drilling, and blows air to clear the testing hole when releasing the air, and a lower spring telescopic rod is provided to drive a liquid spraying mechanism to spray liquid into the testing hole, so that the operator does not need to change tools and can perform the pre-step of depth testing while drilling, thereby reducing the labor intensity of the operator and making the device more convenient to carry.

[0013] The L-shaped push rod is provided to drive the first piston to draw air through the air nozzle when the upper spring telescopic rod is contracted. After the drilling is completed, the upper spring telescopic rod is stretched to blow air to clean the inspection hole. The inspection hole is cleaned when the drilling operation is completed, without the need to change tools or perform additional operations, thereby improving work efficiency and reducing single-hole inspection time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall schematic diagram of a carbonation depth testing device for concrete strength testing according to the present invention;

[0015] Figure 2 This is a schematic diagram from another angle of a carbonation depth testing device for concrete strength testing according to the present invention;

[0016] Figure 3 This is a schematic diagram of a hole cleaning mechanism of a carbonization depth testing device for concrete strength testing according to the present invention;

[0017] Figure 4 This is a partial enlarged schematic diagram of A of the present utility model;

[0018] Figure 5 This is a schematic diagram of the liquid spraying mechanism of a carbonation depth testing device for concrete strength testing according to the present invention;

[0019] Figure 6 This is a schematic diagram of a measuring instrument for a carbonation depth testing device for concrete strength testing according to the present invention;

[0020] Figure 7 This is a schematic diagram of the connection of a driving column of a carbonation depth testing device for concrete strength testing according to the present invention.

[0021] In the figure: 1-measuring instrument; 11-control button; 12-display screen; 13-liquid pot; 14-driving column; 141-knob; 142-slot; 2-upper spring telescopic rod; 21-gasket; 3-lower spring telescopic rod; 4-hole cleaning mechanism; 41-air cylinder; 42-air nozzle; 43-L-shaped push rod; 44-first piston; 5-liquid spraying mechanism; 51-liquid cylinder; 511-first one-way valve; 512-second one-way valve; 52-liquid nozzle; 53-push rod; 54-second piston; 55-hose; 56-tension spring; 57-connecting rod; 6-punching rod; 7-drill bit; 71-threaded protrusion. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 7As shown, the utility model provides the following technical solutions: a carbonization depth testing device for concrete strength testing, comprising a measuring instrument 1, an upper spring telescopic rod 2, a lower spring telescopic rod 3, a hole cleaning mechanism 4, and a liquid spraying mechanism 5 for spraying liquid on the testing hole; the upper spring telescopic rod 2 and the lower spring telescopic rod 3 are both plugged into the side of the measuring instrument 1 and are symmetrically arranged, one end of the hole cleaning mechanism 4 is plugged into the measuring instrument 1, and the other end of the hole cleaning mechanism 4 is fixedly connected to the upper spring telescopic rod 2, one end of the liquid spraying mechanism 5 is fixedly connected to the lower spring telescopic rod 3, and the other end of the liquid spraying mechanism 5 is fixedly connected to the measuring instrument The side of the measuring instrument 1 is abutted; a motor is provided inside the measuring instrument 1, and the output end of the motor extends to the side of the measuring instrument 1. The output end of the motor is fixedly connected to a punching rod 6, and a drill bit 7 is provided at the end of the punching rod 6 away from the motor. The punching rod 6 is arranged between the upper spring telescopic rod 2 and the lower spring telescopic rod 3; the upper spring telescopic rod 2 and the lower spring telescopic rod 3 contract so that the drill bit 7 contacts the concrete wall surface, so that the drill bit 7 drills a hole, and the contraction and reset of the upper spring telescopic rod 2 and the lower spring telescopic rod 3 drive the hole cleaning mechanism 4 and the liquid spraying mechanism 5 to clean and spray the drilled hole. The upper spring telescopic rod 2 and the lower spring telescopic rod 3 both include an outer rod, an inner rod and a telescopic spring. The inner rod slides inside the outer rod and stretches or compresses the telescopic spring, thereby stretching or contracting the spring telescopic rod. When performing concrete carbonization depth detection operations, according to the on-site marking points, the drill bit 7 is aligned with the marking point position so that the upper spring telescopic rod 2 and the lower spring telescopic rod 3 are against the concrete wall surface, and then the measuring instrument 1 is pushed to retract the spring telescopic rod and press the drill bit 7 to the concrete surface, start the motor, and the motor output shaft drives the punching rod 6 to rotate, thereby driving the drill bit 7 to rotate and crush the concrete. The drill bit 7 adopts a conical structure and is plugged into the punching rod 6, so that drill bits 7 of different sizes can be replaced according to the actual situation on site. When the upper spring telescopic rod 2 contracts, the hole cleaning mechanism 4 inhales air. After drilling is completed, the upper spring telescopic rod 2 is stretched, driving the hole cleaning mechanism 4 to blow air to clean the detection hole.

[0024] See also Figure 1 A gasket 21 is provided at one end of the upper spring telescopic rod 2 and the lower spring telescopic rod 3 away from the measuring instrument 1.

[0025] See also Figure 1 The end face of the measuring instrument 1 and the side away from the punching rod 6 are both provided with control buttons 11, the cross section of the measuring instrument 1 is also provided with a display screen 12, and the lower end of the measuring instrument 1 is plugged with a liquid pot 13; the detection mode of the measuring instrument 1 can be adjusted and the detection value can be determined by the control button 11 and the display screen 12. The liquid pot 13 is filled with a special solution for carbonization depth detection, which is generally a 1%-2% phenolphthalein alcohol solution. After consumption, the liquid pot 13 can be removed and replenished.

[0026] See also Figure 1The surface of the drill bit 7 is provided with a threaded protrusion 71 to improve the crushing effect of the concrete, so as to improve the crushing effect of the drill bit 7 on the concrete.

[0027] As another example, Figures 1 to 3 As shown, the hole cleaning mechanism 4 includes an air cylinder 41, an air nozzle 42, an L-shaped push rod 43 and a first piston 44; one end of the air cylinder 41 is plugged into the side of the measuring instrument 1, the first piston 44 is arranged inside the air cylinder 41, and the air nozzle 42 is arranged downwardly tilted at the end of the air cylinder 41 away from the measuring instrument 1. The end of the short handle end of the L-shaped push rod 43 is fixedly connected to the end of the upper spring telescopic rod 2 away from the measuring instrument 1, and the long handle end of the L-shaped push rod 43 extends into the interior of the air cylinder 41 and is fixedly connected to the middle of the first piston 44. When the measuring instrument 1 is pushed for drilling for the first time, the upper spring telescopic rod 2 drives the first piston 44 to remain stationary through the L-shaped push rod 43, and the air cylinder 41 moves toward the wall, so that the first piston 44 slides relatively in the air cylinder 41, and then the air is sucked into the air cylinder 41 through the air nozzle 42. After the drilling is completed, the upper spring telescopic rod 2 rebounds, so that the air cylinder 41 moves in the opposite direction, that is, the first piston 44 slides relatively in the opposite direction, and the air is sprayed into the detection hole through the air nozzle 42 for cleaning the hole. A through hole is opened at the end of the air cylinder 41 away from the measuring instrument 1 for the L-shaped push rod 43 to pass through, and a sliding seal is provided at the edge of the through hole to prevent gas from escaping.

[0028] As another example, Figure 1 and Figures 4 to 7 As shown, the liquid spraying mechanism 5 includes a fluid cylinder 51, a liquid nozzle 52, a push rod 53, a second piston 54, a hose 55, a tensioning spring 56 and a connecting rod 57; one end of the fluid cylinder 51 is fixedly connected with the lower spring telescopic rod 3 by the connecting rod 57, the fluid cylinder 51 is communicated with the liquid pot 13 by the hose 55, the liquid nozzle 52 is upwardly tilted and arranged at one end of the fluid cylinder 51 away from the measuring instrument 1, the second piston 54 is arranged inside the fluid cylinder 51, one end of the push rod 53 is fixedly connected with the second piston 54, one end of the tensioning spring 56 is fixedly connected with the second piston 54, and the other end of the tensioning spring 56 is fixedly connected with the inner wall of the fluid cylinder 51 near one side of the measuring instrument 1. When the lower spring telescopic rod 3 is subjected to pressure and contracts, the fluid cylinder 51 is immobilized through the connecting rod 57, and the measuring instrument 1 pushes the push rod 53 to slide toward the wall, thereby spraying the liquid in the fluid cylinder 51 into the detection hole through the liquid nozzle 52, wherein the liquid flows from the liquid pot 13 to the fluid cylinder 51 through the hose 55. The hose 55 is spirally arranged in the liquid pot 13, so that the hose 55 can be stretched to a certain extent to adapt to the change in the relative position between the measuring instrument 1 and the fluid cylinder 51.

[0029] See also Figure 5The first one-way valve 511 is provided at the junction of the hose 55 and the fluid cylinder 51, and the second one-way valve 512 is provided at the junction of the fluid cylinder 51 and the liquid nozzle 52. The first one-way valve 511 can only make liquid flow from the hose 55 to the fluid cylinder 51, and the second one-way valve 512 can only make liquid flow from the fluid cylinder 51 to the liquid nozzle 52. After the liquid is sprayed, the lower spring telescopic rod 3 rebounds, and the measuring instrument 1 returns to its initial position. The tensioning spring 56 pulls the second piston 54 back to its initial position and forms a negative pressure in the fluid cylinder 51, thereby extracting liquid from the liquid pot 13 through the hose 55. It is worth mentioning that after using this device for the first time or replacing the liquid pot 13, it is necessary to pull the lower spring telescopic rod 3 separately to make liquid enter the fluid cylinder 51.

[0030] See also Figure 1 、 Figure 6 as well as Figure 7 The measuring instrument 1 has a drive column 14 at its lower portion, extending through the measuring instrument 1 and rotatably connected to the interior of the measuring instrument 1. A knob 141 is provided on one end of the drive column 14, distal from the punching rod 6. The other end of the drive column 14 abuts against the push rod 53. The drive column 14 has a slot 142 of the same shape as the push rod 53, allowing the push rod 53 to snap into place. During drilling, the slot 142 corresponds to the shape of the push rod 53. When the measuring instrument 1 is pushed, the push rod 53 snaps into the slot 142, preventing liquid from being ejected during drilling. After the hole is cleared, the drive column 14 is rotated by turning the knob 141, causing the slot 142 to no longer correspond to the shape of the push rod 53, allowing the measuring instrument 1 to be pushed again. The drive column 14 pushes the push rod 53, causing the second piston 54 to move, thereby ejecting liquid. A latch can be provided on the knob 141 to facilitate its rotation to the desired position.

[0031] Working principle: When in use, align the drill bit 7 with the dot position, press the upper spring telescopic rod 2 and the lower spring telescopic rod 3 against the concrete wall through the gasket 21, confirm the direction of the knob 141 so that the slot 142 is consistent with the shape of the push rod 53, then start the motor to rotate the drill bit 7, push the measuring instrument 1 to shrink the spring telescopic rod, and then use the drill bit 7 to break the concrete at the dot position and drill a detection hole of appropriate size. During the pushing process, the upper spring telescopic rod 2 shrinks, causing the measuring instrument 1 to drive the air cylinder 41 to move, and then the first piston 44 is relatively displaced in the air cylinder 41, and air is sucked into the air cylinder 41 through the air nozzle 42, and the push rod at the bottom of the device is pushed. 53 is stuck in the card slot 142 and will not push the second piston 54. After the drilling is completed, the operator no longer applies force in the horizontal direction, and the upper spring telescopic rod 2 rebounds, causing the first piston 44 to move in the opposite direction, thereby causing air to be sprayed into the detection hole through the air nozzle 42 to clean the hole. Subsequently, the driving column 14 is rotated by turning the knob 141, so that the shape of the card slot 142 does not correspond to the push rod 53, and the measuring instrument 1 is pushed again, so that the driving column 14 pushes the push rod 53 to move, thereby causing the second piston 54 to spray the liquid in the liquid cylinder 51 into the detection hole through the liquid nozzle 52, and then the measuring instrument 1 is used to measure the color-changing junction in the detection hole.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbonization depth testing device for concrete strength testing, characterized in that , comprising a measuring instrument (1), an upper spring telescopic rod (2), a lower spring telescopic rod (3), a hole cleaning mechanism (4) and a liquid spraying mechanism (5) for spraying liquid on the detection hole; the upper spring telescopic rod (2) and the lower spring telescopic rod (3) are both plugged into the side of the measuring instrument (1) and symmetrically arranged, one end of the hole cleaning mechanism (4) is plugged into the measuring instrument (1), the other end of the hole cleaning mechanism (4) is fixedly connected to the upper spring telescopic rod (2), one end of the liquid spraying mechanism (5) is fixedly connected to the lower spring telescopic rod (3), the other end of the liquid spraying mechanism (5) is in contact with the side of the measuring instrument (1); the measuring instrument (1) is provided with A motor, wherein the motor output end extends to the side of the measuring instrument (1), the motor output end is fixedly connected to a punching rod (6), and a drill bit (7) is provided at one end of the punching rod (6) away from the motor, and the punching rod (6) is provided between the upper spring telescopic rod (2) and the lower spring telescopic rod (3); the upper spring telescopic rod (2) and the lower spring telescopic rod (3) are retracted to allow the drill bit (7) to contact the concrete wall surface, so that the drill bit (7) drills a hole, and the contraction and resetting of the upper spring telescopic rod (2) and the lower spring telescopic rod (3) drive the hole cleaning mechanism (4) and the liquid spraying mechanism (5) to clean and spray the drill hole.

2. The carbonization depth testing device for concrete strength detection according to claim 1, characterized in that: The end face of the measuring instrument (1) and the side away from the punching rod (6) are provided with a control button (11), the cross section of the measuring instrument (1) is also provided with a display screen (12), and the lower end of the measuring instrument (1) is plugged with a liquid pot (13).

3. The carbonization depth testing device for concrete strength detection according to claim 2, characterized in that: The surface of the drill bit (7) is provided with a threaded protrusion (71) for improving the crushing effect on concrete.

4. The carbonization depth testing device for concrete strength detection according to claim 3, characterized in that: The hole cleaning mechanism (4) comprises an air cylinder (41), an air nozzle (42), an L-shaped push rod (43) and a first piston (44); one end of the air cylinder (41) is plugged into the side of the measuring instrument (1), the first piston (44) is arranged inside the air cylinder (41), the air nozzle (42) is arranged downwardly and tilted at the end of the air cylinder (41) away from the measuring instrument (1), the end of the short handle end of the L-shaped push rod (43) is fixedly connected to the end of the upper spring telescopic rod (2) away from the measuring instrument (1), and the long handle end of the L-shaped push rod (43) extends into the interior of the air cylinder (41) and is fixedly connected to the middle of the first piston (44).

5. The carbonization depth testing device for concrete strength detection according to claim 4, characterized in that: The liquid spraying mechanism (5) comprises a liquid cylinder (51), a liquid nozzle (52), a push rod (53), a second piston (54), a hose (55), a tension spring (56) and a connecting rod (57); one end of the liquid cylinder (51) is fixedly connected to the lower spring telescopic rod (3) through the connecting rod (57); the liquid cylinder (51) is communicated with the liquid pot (13) through the hose (55); the liquid nozzle (52) is arranged upwardly and tilted at one end of the liquid cylinder (51) away from the measuring instrument (1); the second piston (54) is arranged inside the liquid cylinder (51); one end of the push rod (53) is fixedly connected to the middle of the second piston (54); one end of the tension spring (56) is fixedly connected to the second piston (54); and the other end of the tension spring (56) is fixedly connected to the inner wall of the liquid cylinder (51) on the side close to the measuring instrument (1).

6. The carbonization depth testing device for concrete strength detection according to claim 5, characterized in that: A first one-way valve (511) is provided at the junction of the hose (55) and the liquid cylinder (51), and a second one-way valve (512) is provided at the junction of the liquid cylinder (51) and the liquid nozzle (52).

7. The carbonization depth testing device for concrete strength detection according to claim 6, characterized in that: The lower part of the measuring instrument (1) is provided with a driving column (14) which passes through the measuring instrument (1). The driving column (14) is rotatably connected to the inside of the measuring instrument (1). The driving column (14) is provided with a knob (141) at one end away from the punching rod (6). The other end of the driving column (14) is in contact with the pushing rod (53). The driving column (14) is provided with a slot (142) of the same shape as the pushing rod (53) so that the pushing rod (53) can be inserted into the driving column (14).

8. The carbonization depth testing device for concrete strength detection according to claim 7, characterized in that: A gasket (21) is provided on one end of the upper spring telescopic rod (2) and the lower spring telescopic rod (3) away from the measuring instrument (1).

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