Concrete carbonization depth measuring device

Abstract

The invention relates to the technical field of concrete carbonization depth detection, in particular to a concrete carbonization depth measuring device which comprises a measuring instrument and a measuring contact pin arranged on the measuring instrument, an elastic telescopic ring plate is arranged on one side of the measuring instrument, and a driving assembly is arranged on the side, close to the elastic telescopic ring plate, of the measuring instrument. A cleaning assembly is arranged on the side, close to the elastic telescopic ring plate, of the measuring instrument, large particles can be cleaned, meanwhile, an arranged flexible brush is driven by an inner rotating rod to rotate, the flexible brush continuously makes contact with the inner wall of a hole to clean the inner wall of the hole, some large particles are cleaned out, and the cleaning effect is good. And meanwhile, under the rotation of the whole inner rotating rod, air backflow is formed in the hole under the action of the air supply cover and the air suction fan blades, some escaping air dust is continuously pushed to the direction away from the hole under the action of the backflow, and the dust is prevented from falling into the hole again to affect the whole subsequent measurement result.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete carbonation depth detection, and specifically to a concrete carbonation depth measuring device. Background Art

[0002] Concrete carbonation refers to the process in which calcium hydroxide in concrete reacts with carbon dioxide in the air, carbon dioxide dissolved in water, or other acidic substances to become calcium carbonate and lose its alkalinity. Measuring the depth of concrete carbonation is an important means to evaluate the durability of concrete structures.

[0003] Before measurement, a hammer and a chisel are used to knock on the hole. When a suitable hole is chiseled, the dust and impurities remaining inside the hole are cleaned out through an air nozzle. After cleaning these impurities, a phenolphthalein solution is dropped into the hole for a color change reaction, and finally, the carbonation depth of the entire concrete wall surface is obtained through the detection of a measuring instrument.

[0004] When measuring, cleaning the chiseled hole is to prevent the remaining dust inside the hole from adhering to the inner wall. When the phenolphthalein solution is dropped, this dust affects the color change of the phenolphthalein solution. The existing dust cleaning operation is to insert an air nozzle into the hole and blow out the dust by jetting air. During the entire cleaning process, the air nozzle jetting method can only blow away some small dust particles that have fallen on the hole, and some larger particles cannot be effectively blown away by the air nozzle, so that these larger particles affect the subsequent measurement results. Moreover, the air nozzle jetting method easily scatters small dust into the surrounding air. When the user approaches the wall for careful cleaning, these scattered dust particles are likely to enter the user's eyeball, causing discomfort to the user's eyeball. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the present invention provides a concrete carbonation depth measuring device, which has the function of cleaning larger particles, and at the same time, during the entire cleaning process, it treats some dust scattered in the air to avoid this dust affecting the user.

[0006] To achieve the above object, the present invention provides the following technical solution: A concrete carbonation depth measuring device, including a measuring instrument and a measuring probe provided on the measuring instrument. An elastic telescopic ring plate is provided on one side of the measuring instrument. A driving component is provided on the side of the measuring instrument close to the elastic telescopic ring plate. A cleaning component is provided on the side of the measuring instrument close to the elastic telescopic ring plate, and the cleaning component is inside the elastic telescopic ring plate; The cleaning component includes an inner rotating rod arranged on one side of the measuring instrument close to the elastic telescopic ring plate. An outer rotating rod is sleeved on the inner rotating rod, and the outer rotating rod is engaged and slidable with the inner rotating rod. An annular sleeve is arranged on the outer rotating rod, and telescopic sleeve plates are arranged in an array on the annular sleeve. Flexible brushes are arranged in an array on the side of the telescopic sleeve plate away from the inner rotating rod. The cleaning component further includes a air supply component, which is used to realize the air reflux in the area to be cleaned under the rotation of the inner rotating rod, and capture some fine dust scattered in the air.

[0007] Preferably, the air supply component includes a suction fan blade arranged on the inner rotating rod. A air supply cover is sleeved on the suction fan blade, and the air supply cover is fixedly connected with the elastic telescopic ring plate. An adsorption plate is arranged on the inner rotating rod, and the adsorption plate is located between the suction fan blade and the outer rotating rod. A friction plate is arranged on the air supply cover, and the friction plate is in contact with the adsorption plate.

[0008] Preferably, air inlet holes are opened at the position of the air supply cover close to the suction fan blade. Air supply holes are arranged in an array at one end of the air supply cover away from the inner rotating rod. Oblique holes are arranged in a whole row on the adsorption plate.

[0009] Preferably, the adsorption plate is made of a kind of polypropylene material. Acetate fiber material is embedded on the side of the friction plate close to the adsorption plate, and this material is in contact and fit with the adsorption plate.

[0010] Preferably, two second springs are arranged inside the telescopic sleeve plate, and are respectively in contact with two adjacent inner sleeve plates. Round balls are arranged at one end of the telescopic sleeve plate away from the annular sleeve.

[0011] Preferably, the driving component includes a mounting seat arranged on one side of the measuring instrument. A swing handle is movably arranged on the mounting seat. A transmission rod is arranged on the side of the swing handle close to the elastic telescopic ring plate. A movable sleeve is arranged at one end of the transmission rod away from the swing handle. A belt is arranged on the movable sleeve. A transmission shaft is sleeved at one end of the belt away from the transmission rod, and the diameter of the transmission shaft is different from that of the movable sleeve. A transmission gear is arranged on the transmission shaft. A mating gear is arranged on the inner rotating rod, and the mating gear is meshed with the transmission gear.

[0012] Preferably, a protective shell is arranged on the side of the measuring instrument close to the inner rotating rod, and the protective shell is rotatably connected with the transmission shaft and the inner rotating rod. A one-way ratchet is movably arranged at the position of the protective shell close to the transmission rod, and the one-way ratchet is fixedly connected with the movable sleeve. Tightening elastic blocks are arranged in an array on the transmission rod, and one end of the tightening elastic blocks is in contact with the one-way ratchet.

[0013] Preferably, a sliding groove is formed on one side of the swinging handle, a sliding block is movably arranged inside the sliding groove, a telescopic rod is arranged on one side of the measuring instrument close to the swinging handle, and the telescopic rod is rotatably connected with the sliding block, and a first spring is sleeved outside the telescopic rod.

[0014] Preferably, a placement groove is formed at one end of the inner rotating rod close to the outer rotating rod, a limiting plate is movably arranged inside the placement groove, a telescopic limiting rod is arranged inside the placement groove, and a third spring is sleeved outside the telescopic limiting rod.

[0015] Preferably, a limiting groove is formed inside the outer rotating rod, the limiting groove is in contact with the limiting plate, and a pushing plate is movably arranged on the outer rotating rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, the flexible brush rotates under the drive of the inner rotating rod, so that the flexible brush continuously contacts and cleans the inner wall of the hole, cleaning out some large particles. At the same time, under the rotation of the entire inner rotating rod, an air reflux is formed inside the hole under the action of the air supply hood and the suction fan blades. Under the action of this reflux, some scattered air dust is continuously pushed away from the hole, preventing these dusts from falling back into the hole again and affecting the entire subsequent measurement results. 2. At the same time, when these dusts continuously approach the adsorption plate arranged, the inclined holes formed on the adsorption plate can effectively block these dusts, so that these dusts directly contact the adsorption plate. At the same time, the rotating adsorption plate will generate an electrostatic phenomenon under continuous friction with the friction plate, so that the dusts contacting the adsorption plate are directly adsorbed on it, continuously reducing the scattered dust in the hole and making the final measurement result more accurate. 3. The rotation of the entire inner rotating rod is driven by the cooperation between the transmission gear and the mating gear. The maximum diameter of the set transmission gear is much larger than that of the mating gear, so that during the entire rotation process, the rotation speed of the mating gear is faster than that of the transmission gear. This enables the user to save effort when using it, and at the same time, the entire suction fan blade can convey air at a faster rotation speed, increasing the air reflux flow rate inside the entire hole and quickly treating the scattered dust to prevent these dusts from falling back into the hole again. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the overall device of the present invention.

[0018] Figure 2 It is a rear view structure diagram of the overall device of the present invention.

[0019] Figure 3 It is a side cross-sectional structure diagram of the cleaning component and the air supply component of the device of the present invention.

[0020] Figure 4 This is an enlarged schematic view of the partial structure of the cleaning component of the device of the present invention.

[0021] Figure 5 This is a half-sectional schematic view of the connection structure between the inner rotating rod and the outer rotating rod in the device of the present invention.

[0022] Figure 6 This is an exploded schematic view of the air suction component of the device of the present invention.

[0023] Figure 7 This is a schematic view of the internal structure of the drive component of the device of the present invention.

[0024] Figure 8 This is a partial schematic view of the connection structure between the measuring instrument and the swing handle in the device of the present invention.

[0025] Figure 9 For the device of the present invention Figure 7 Partial enlarged schematic view at position A.

[0026] Figure 10 This is a schematic view of the connection structure between the inner rotating rod and the internal limit plate in the device of the present invention.

[0027] Figure 11 This is a half-sectional schematic view of the connection structure between the outer rotating rod and the propulsion plate in the device of the present invention.

[0028] In the figure: 1. Measuring instrument; 11. Protective shell; 12. One-way ratchet; 13. Telescopic rod; 2. Measuring probe; 3. Elastic telescopic ring plate; 4. Drive component; 41. Mounting seat; 42. Swing handle; 421. Tightening elastic block; 422. Sliding groove; 423. Sliding block; 424. First spring; 43. Transmission rod; 44. Movable sleeve; 45. Belt; 46. Transmission shaft; 47. Transmission gear; 48. Matching gear; 5. Cleaning component; 51. Inner rotating rod; 511. Placing groove; 512. Limit plate; 513. Telescopic limit rod; 514. Third spring; 52. Outer rotating rod; 521. Limit groove; 522. Propulsion plate; 53. Ring sleeve; 54. Telescopic sleeve plate; 541. Second spring; 542. Round ball; 55. Flexible brush; 6. Air supply component; 61. Suction fan blade; 62. Air supply cover; 621. Air inlet hole; 622. Air supply hole; 63. Adsorption plate; 631. Oblique hole; 64. Friction plate. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0030] Please refer to Figures 1 to 6 which is the first embodiment of the present invention and provides a technical solution: a device for measuring the carbonation depth of concrete, including a measuring instrument 1 and a measuring probe 2 arranged on the measuring instrument 1. The measuring probe 2 is used to contact the boundary line between the carbonated and non-carbonated layers in the area to be detected to obtain the final monitoring data. An elastic telescopic ring plate 3 is arranged on one side of the measuring instrument 1. The elastic telescopic ring plate 3 is used to annularly seal the chiseled hole, so that when cleaning the dust in the hole, the dust escaping into the air will be intercepted. A driving component 4 is arranged on the side of the measuring instrument 1 close to the elastic telescopic ring plate 3. The driving component 4 is used to transmit power so that the arranged inner rotating rod 51 can rotate. A cleaning component 5 is arranged on the side of the measuring instrument 1 close to the elastic telescopic ring plate 3. The cleaning component 5 is used to clean the dust adsorbed in the hole during rotation, and the cleaning component 5 is inside the elastic telescopic ring plate 3; The cleaning component 5 includes an inner rotating rod 51 arranged on the side of the measuring instrument 1 close to the elastic telescopic ring plate 3. The inner rotating rod 51 is annularly arrayed with notches, and a clamping and sliding relationship is formed between the outer rotating rods 52 through these notches, so that when the inner rotating rod 51 rotates, the outer rotating rods 52 can be driven to rotate synchronously. An outer rotating rod 52 is sleeved on the inner rotating rod 51, and the outer rotating rod 52 is clamped and slid with the inner rotating rod 51. One end of the outer rotating rod 52 away from the inner rotating rod 51 is dome-shaped, and there is a through hole penetrating through the inside of the outer rotating rod 52 at the dome. When the outer rotating rod 52 is squeezed and shrinks towards the measuring instrument 1, the air stored inside the outer rotating rod 52 can be discharged through this through hole, avoiding the influence of the air inside the outer rotating rod 52 on the overall contraction state of the outer rotating rod 52 when it cannot be discharged. An annular sleeve 53 is arranged on the outer rotating rod 52. Telescopic sleeve plates 54 are arrayed on the annular sleeve 53. The telescopic sleeve plates 54 are formed by splicing and sleeving multiple sleeve plates together, and springs are placed between two adjacent sleeve plates to reset the telescopic sleeve plates 54 without external force. Flexible brushes 55 are arrayed on the side of the telescopic sleeve plates 54 away from the inner rotating rod 51. The material of the flexible brushes 55 is preferably selected from nylon material or polyester material, both of which have good elasticity and wear resistance; The cleaning component 5 further includes a air supply component 6. The air supply component 6 is used to realize the air reflux in the area to be cleaned under the rotation of the inner rotating rod 51 and capture some fine dust escaping into the air.

[0031] The air supply component 6 includes a suction fan blade 61 provided on the inner rotating rod 51. The suction fan blade 61 is fixedly connected to the inner rotating rod 51, and there is a sufficient distance between the baffle on the side of the suction fan blade 61 close to the outer rotating rod 52 and the inner rotating rod 51, so that the outside air can enter the inside of the suction fan blade 61 through this place. Driven by the fan blades with a certain inclination angle arranged in the array inside the suction fan blade 61, the air is continuously sent into the air supply cover 62, and then the air is sent into the cleaning area again through the air supply holes 622 arranged in the array on the air supply cover 62, so as to realize the gas reflux in the cleaning area. Under the action of this gas reflux, the dust dissipated in the air during the cleaning process is carried to make these dusts contact the adsorption plate 63. A air supply cover 62 is sleeved on the suction fan blade 61, and the air supply cover 62 is fixedly connected to the elastic telescopic ring plate 3. The air supply cover 62 is integrally funnel-shaped, and the inside of the air supply cover 62 is cavity-shaped. An air inlet hole 621 is opened at the position of the air supply cover 62 where it is close to the suction fan blade 61. When every two adjacent fan blades in the suction fan blade 61 carry air to the air inlet hole 621, these air will be sent into the inside of the air supply cover 62 and finally return to the space in the cleaning area again through the air supply holes 622 on the air supply cover 62. An adsorption plate 63 is provided on the inner rotating rod 51, and the adsorption plate 63 is located between the suction fan blade 61 and the outer rotating rod 52. The adsorption plate 63 is used to rotate synchronously under the drive of the inner rotating rod 51. During the rotation process, the adsorption plate 63 continuously rubs against the friction plate 64, so that the adsorption plate 63 generates static electricity and has an adsorption effect on the dust contacting the adsorption plate 63. A friction plate 64 is provided on the air supply cover 62, and the friction plate 64 is in contact with the adsorption plate 63. The surface of the friction plate 64 in contact with the adsorption plate 63 is filled and inlaid with acetate fiber fabric, so that under the friction action, the adsorption plate 63 itself shows an electrostatic phenomenon.

[0032] An air inlet hole 621 is opened at the position of the air supply cover 62 close to the suction fan blade 61, and air supply holes 622 are arrayed at one end of the air supply cover 62 far from the inner rotating rod 51. The overall opening angle of the air supply holes 622 on the arc surface of the air supply cover 62 has a certain inclination. Under the action of this inclination angle, when a part of the air is sent, it can form a certain angle with the cleaning area, so that the dust dissipated in the air can be pushed by this part of the air and move towards the adsorption plate 63. Diagonal holes 631 are arranged in a whole row on the adsorption plate 63. The overall inclination angle of the diagonal holes 631 is in a state of blocking particulate matter from the horizontal position. When the internal air carries dust and approaches the adsorption plate 63, the air therein will enter the suction fan blade 61 through the diagonal holes 631, while the dust therein will be blocked by the diagonal holes 631 and contact the entire adsorption plate 63. During the contact process, it is adsorbed by the adsorption plate 63 with an electrostatic effect, so as to realize the adsorption of the dust dissipated in the air and prevent these dusts from falling back into the holes again and affecting the final result of the whole measurement.

[0033] The adsorption plate 63 is made of a polypropylene material, and the friction plate 64 is embedded with an acetate fiber material on one side close to the adsorption plate 63, and the material is in contact with the adsorption plate 63. When the adsorption plate 63 rotates with the inner rotating rod 51, the adsorption plate 63 will continuously generate friction with the acetate fiber material embedded in the friction plate 64. Under the action of friction, the electrons inside the two will be transferred, and finally the adsorption plate 63 as a whole will be positively charged and have an adsorption effect, which will adsorb the contacted dust, while the acetate fiber material on the friction plate 64 is negatively charged as a whole.

[0034] A second spring 541 is provided inside the telescopic sleeve 54, and two second springs 541 are provided, which are respectively in contact with the inner sleeves adjacent to each other. The second spring 541 is used to reset the sleeve inside the telescopic sleeve 54. At the same time, the second spring 541 is sleeved on a push rod, and several sleeves are restricted by the push rod to avoid falling off. A round ball 542 is provided at one end of the telescopic sleeve 54 away from the annular sleeve 53. When the telescopic sleeve 54 is squeezed and contracted, the round ball 542 can contact the inner wall of the air supply hood 62 before the telescopic sleeve 54, and the friction is reduced through the contact between the round ball 542 and the air supply hood 62.

[0035] During use, first, the elastic telescopic ring plate 3 on the measuring instrument 1 is placed close to the concrete wall, and the chiseled hole is completely covered inside the entire elastic telescopic ring plate 3. Then, the measuring instrument 1 is continuously moved closer to the wall until the measuring instrument 1 stops moving when encountering resistance during movement. Then, the inner rotating rod 51 is rotated by the driving component 4. During the rotation of the inner rotating rod 51, the suction fan blades 61 and the outer rotating rod 52 are synchronously driven to rotate, so that the flexible brush 55 provided on the outer rotating rod 52 can brush the dust and impurities remaining in the hole to make them leave the hole. At the same time, the rotation of the suction fan blades 61 can suck the air in the hole. During the suction process, some dust scattered in the air is driven toward the adsorption plate 63, and the sucked air passes through the air supply cover 62. The air enters the air supply cover 62 through the air inlet hole 621, and the air finally re-enters the hole through the air supply hole 622 on the air supply cover 62 to form an air reflux. The dust in the hole will be continuously moved out of the hole surface under the action of the air reflux. At the same time, the adsorption plate 63 provided in this process is continuously in contact with the friction plate 64, so that the adsorption plate 63 as a whole generates static electricity to adsorb the dust contacting the adsorption plate 63, so as to prevent the dust from re-entering the hole through the air supply cover 62 and affecting the subsequent measurement results. After a period of time, the measuring instrument 1 can be removed, and the phenolphthalein solution can be dripped into the hole. After waiting for a period of time, the measuring probe 2 on the measuring instrument 1 is contacted with the boundary between the carbonized and uncarbonized layers in the hole to obtain the final measurement data. Example

[0036] Please refer to Figures 1 to 9 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is as follows: The driving assembly 4 includes a mounting base 41 disposed on one side of the measuring instrument 1. A swing handle 42 is movably disposed on the mounting base 41. The user puts the thumb into the circular placement opening in the swing handle 42 and presses the swing handle 42 inward, so that the swing handle 42 can swing around the set mounting base 41 as the axis. At the same time, the transmission rod 43 disposed at the axis of the swing handle 42 will rotate, thereby transmitting the power through the set transmission rod 43. A transmission rod 43 is disposed on the swing handle 42 close to the elastic telescopic ring plate 3. An activity sleeve 44 is disposed at one end of the transmission rod 43 away from the swing handle 42. A belt 45 is disposed on the activity sleeve 44. A transmission shaft 46 is sleeved at one end of the belt 45 away from the transmission rod 43, and the transmission shaft 46 and the activity sleeve 44 have different diameters. The activity sleeve 44 transmits the formed rotational force to the transmission shaft 46 through the belt 45. At the same time, the maximum diameters of the transmission shaft 46 and the activity sleeve 44 are different, so that the belt 45 will not slip during the entire conveying process. A transmission gear 47 is disposed on the transmission shaft 46. A mating gear 48 is disposed on the inner rotating rod 51, and the mating gear 48 meshes with the transmission gear 47. The maximum diameter of the transmission gear 47 is much larger than that of the mating gear 48, so that during the entire rotation process, the rotational speed of the mating gear 48 is faster than that of the transmission gear 47, and the overall rotational speed of the inner rotating rod 51 is much greater than the rotational speed of the transmission rod 43.

[0037] A protective shell 11 is disposed on the measuring instrument 1 close to the inner rotating rod 51, and the protective shell 11 is rotatably connected to the transmission shaft 46 and the inner rotating rod 51. A one-way ratchet 12 is movably disposed on the protective shell 11 close to the transmission rod 43, and the one-way ratchet 12 is fixedly connected to the activity sleeve 44. The one-way ratchet 12 is used to contact with the abutting elastic block 421 disposed on the swing handle 42. During the entire contact process, when the swing handle 42 is no longer pressed, the set first spring 424 resets the swing handle 42. The reset of the swing handle 42 will no longer be able to transmit the power to the one-way ratchet 12, so that the one-way ratchet 12 will stop driving the activity sleeve 44 to rotate. Abutting elastic blocks 421 are arrayed on the transmission rod 43, and one end of the abutting elastic block 421 contacts with the one-way ratchet 12. The abutting elastic block 421 has a certain arc, so that when the swing handle 42 is reset, at this moment, the transmission rod 43 will drive the abutting elastic block 421 to rotate in the reverse direction. At this moment, the set abutting elastic block 421 will no longer exert an abutting and pushing effect on the one-way ratchet 12.

[0038] A sliding groove 422 is formed on one side of the swinging handle 42. A sliding block 423 is movably arranged inside the sliding groove 422. One side of the measuring instrument 1 close to the swinging handle 42 is provided with a telescopic rod 13, and the telescopic rod 13 is rotatably connected to the sliding block 423. A first spring 424 is sleeved outside the telescopic rod 13. The first spring 424 is used to drive the swinging handle 42 to reset by elastic force. When the swinging handle 42 is pressed and rotated, the set telescopic rod 13 and the first spring 424 contract synchronously, so that the swinging handle 42 can reset to the initial position without external force in the follow-up.

[0039] During the use process, when the user presses the swinging handle 42 to make the transmission rod 43 rotate synchronously, the abutting elastic block 421 arranged on the transmission rod 43 will push the one-way ratchet 12 to rotate, so that the set belt 45 transmits power to the transmission shaft 46, and the transmission gear 47 rotates. Under the meshing action between the transmission gear 47 and the mating gear 48 arranged on the inner rotating rod 51, the inner rotating rod 51 is driven to rotate. When the user presses the swinging handle 42 to the limit position and stops pressing, the swinging handle 42 can reset under the action of the set first spring 424. During the reset process of the swinging handle 42, the reverse rotation of the transmission rod 43 makes the abutting elastic block 421 no longer push the one-way ratchet 12 to rotate, thereby avoiding the reverse rotation of the inner rotating rod 51 and affecting the entire cleaning process.

[0040] The remaining structures are the same as those of Embodiment 1. Embodiment

[0041] Please refer to Figures 1 to 11 , which is the third embodiment of the present invention. The difference between this embodiment and the first and second embodiments is: A placement groove 511 is formed at one end of the inner rotating rod 51 close to the outer rotating rod 52. A limiting plate 512 is movably arranged inside the placement groove 511. The limiting plate 512 is composed of an inclined straight plate and a clamping block with an arc surface. When the outer rotating rod 52 moves in position, the set limiting plate 512 can lock the current position, avoiding the random sliding of the position of the outer rotating rod 52 and affecting the cleaning effect of the flexible brush 55 arranged on the outer rotating rod 52 in the cleaning area. A telescopic limiting rod 513 is arranged inside the placement groove 511, and a third spring 514 is sleeved outside the telescopic limiting rod 513.

[0042] A limiting groove 521 is formed inside the outer rotating rod 52, and the limiting groove 521 is in contact with the limiting plate 512. The limiting groove 521 is in the shape of an inclined tooth, which is used to limit the outer rotating rod 52 by the limiting plate 512, and at the same time, the outer rotating rod 52 can only move in one direction. A pushing plate 522 is movably arranged on the outer rotating rod 52, and the pushing plate 522 is used to unlock the engagement between the limiting plate 512 and the limiting groove 521 by sliding, so that the outer rotating rod 52 can move reversely back to the initial position.

[0043] During the whole using process, when the measuring instrument 1 continuously approaches the concrete wall, the outer rotating rod 52 continuously retracts the inner rotating rod 51. During the whole moving process, the limiting groove 521 on the outer rotating rod 52 continuously contacts the limiting plate 512 arranged on the inner rotating rod 51, so that an engaging effect is formed between the limiting plate 512 and the limiting groove 521, and the outer rotating rod 52 will not slide randomly. At the same time, when the whole measurement is completed, by pushing the pushing plate 522, the limiting plate 512 rotates, temporarily disengaging the engaging relationship between the limiting plate 512 and the limiting groove 521, which is convenient for the user to reset the outer rotating rod 52 and convenient for subsequent continuous use.

[0044] The rest of the structure is the same as that of Embodiments 1 and 2.

[0045] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete carbonation depth measuring device, comprising a measuring instrument (1) and a measuring probe (2) arranged on the measuring instrument (1), characterized in that: An elastic telescopic ring plate (3) is provided on one side of the measuring instrument (1), a driving component (4) is provided on the side of the measuring instrument (1) close to the elastic telescopic ring plate (3), a cleaning component (5) is provided on the side of the measuring instrument (1) close to the elastic telescopic ring plate (3), and the cleaning component (5) is located inside the elastic telescopic ring plate (3); The cleaning assembly (5) comprises an inner rotating rod (51) arranged on a side of the measuring instrument (1) close to the elastic telescopic ring plate (3); an outer rotating rod (52) is sleeved on the inner rotating rod (51), and the outer rotating rod (52) and the inner rotating rod (51) are engaged and slidable with each other; an annular sleeve (53) is arranged on the outer rotating rod (52); a telescopic sleeve plate (54) is arranged in an array on the annular sleeve (53); and a flexible brush (55) is arranged in an array on a side of the telescopic sleeve plate (54) away from the inner rotating rod (51); The cleaning assembly (5) further comprises an air supply assembly (6), which is used to realize air reflow in the area to be cleaned under the rotation of the inner rotating rod (51), thereby capturing some fine dust dispersed in the air.

2. A concrete carbonization depth measuring device according to claim 1, characterized in that: The air supply assembly (6) comprises an air suction fan blade (61) arranged on the inner rotating rod (51); an air supply cover (62) is sleeved on the air suction fan blade (61); the air supply cover (62) is fixedly connected to the elastic telescopic ring plate (3); an adsorption plate (63) is arranged on the inner rotating rod (51); the adsorption plate (63) is located between the air suction fan blade (61) and the outer rotating rod (52); a friction plate (64) is arranged on the air supply cover (62); the friction plate (64) is in contact with the adsorption plate (63).

3. A concrete carbonization depth measuring device according to claim 2, characterized in that: The air supply cover (62) is provided with an air inlet hole (621) near the suction fan blade (61), an array of air supply holes (622) is provided at one end of the air supply cover (62) away from the inner rotating rod (51), and the adsorption plate (63) is provided with oblique holes (631) in a row.

4. A concrete carbonization depth measuring device according to claim 2, characterized in that: The adsorption plate (63) is made of a polypropylene material, and a fiber acetate material is embedded in the friction plate (64) on a side close to the adsorption plate (63), and the material is in contact with and in contact with the adsorption plate (63).

5. The concrete carbonization depth measuring device according to claim 1, characterized in that: A second spring (541) is arranged inside the telescopic sleeve (54), and two second springs (541) are arranged, respectively contacting two adjacent inner sleeves. A round ball (542) is arranged at one end of the telescopic sleeve (54) away from the annular sleeve (53).

6. A concrete carbonization depth measuring device according to claim 4, characterized in that: The driving assembly (4) comprises a mounting seat (41) arranged on one side of the measuring instrument (1); a swing handle (42) is movably arranged on the mounting seat (41); a transmission rod (43) is arranged on a side of the swing handle (42) close to the elastic telescopic ring plate (3); a movable sleeve (44) is arranged on an end of the transmission rod (43) away from the swing handle (42); a belt (45) is arranged on the movable sleeve (44); a transmission shaft (46) is sleeved on an end of the belt (45) away from the transmission rod (43); the transmission shaft (46) and the movable sleeve (44) have different diameters; a transmission gear (47) is arranged on the transmission shaft (46); a matching gear (48) is arranged on the inner rotating rod (51); and the matching gear (48) is meshed with the transmission gear (47).

7. A concrete carbonization depth measuring device according to claim 6, characterized in that: The measuring instrument (1) is provided with a protective shell (11) on one side close to the inner rotating rod (51), and the protective shell (11) is rotatably connected to the transmission shaft (46) and the inner rotating rod (51); a one-way ratchet (12) is movably provided on the protective shell (11) close to the transmission rod (43), and the one-way ratchet (12) is fixedly connected to the movable sleeve (44); a tightening spring block (421) is arranged in an array on the transmission rod (43), and one end of the tightening spring block (421) is in contact with the one-way ratchet (12).

8. A concrete carbonization depth measuring device according to claim 7, characterized in that: A sliding groove (422) is provided on one side of the swing handle (42), a sliding block (423) is movably provided inside the sliding groove (422), a telescopic rod (13) is provided on the side of the measuring instrument (1) close to the swing handle (42), the telescopic rod (13) and the sliding block (423) are rotatably connected, and a first spring (424) is sleeved on the outside of the telescopic rod (13).

9. A concrete carbonization depth measuring device according to claim 7, characterized in that: A placement slot (511) is provided at one end of the inner rotating rod (51) close to the outer rotating rod (52), and a limit plate (512) is movably provided inside the placement slot (511). A telescopic limit rod (513) is provided inside the placement slot (511), and a third spring (514) is sleeved outside the telescopic limit rod (513).

10. A concrete carbonization depth measuring device according to claim 9, characterized in that: A limiting groove (521) is provided inside the outer rotating rod (52), and the limiting groove (521) is in contact with the limiting plate (512). A pushing plate (522) is movably provided on the outer rotating rod (52).

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