Concrete structure carbonization depth automatic detection device

Abstract

The invention relates to the technical field of carbonization depth detection, and particularly discloses a concrete structure carbonization depth automatic detection device which comprises an outer shell, self-adaptive horizontal pieces are arranged on the two sides of one end of the outer shell, a push-type trepanning mechanism is installed in a drilling shell, one end of the push-type trepanning mechanism communicates with a dust collection assembly, and the other end of the push-type trepanning mechanism communicates with a dust removal assembly. A push-type tapping mechanism is arranged on the outer shell, a push-type solution spraying assembly is arranged in the outer shell and located under the push-type tapping mechanism, and a carbonization detection assembly is installed on the outer shell and located under the push-type solution spraying assembly in an embedded mode. The device is simple in structure and convenient to operate, the detection accuracy is improved, meanwhile, trepanning, reagent spraying and carbonization detection can be integrated, the overall detection efficiency is greatly improved, dust particles generated during trepanning can be sucked and cleaned out, and the particles are prevented from affecting the detection accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of carbonization depth detection, and in particular to an automatic detection device for the carbonization depth of a concrete structure. Background Art

[0002] The concrete carbonation depth meter is a testing device specially used to detect the carbonation depth of concrete. It is mainly composed of a stylus, a handle and a display screen, wherein the display screen is used to display the extension length of the stylus. When the carbonation depth of concrete needs to be detected, a small pit with a radius of 1 cm is first chiseled out of the concrete component, and then the mixed alcohol phenolphthalein reagent is evenly sprayed in the small pit, so that the uncarbonated area of ​​the small pit is pink. Finally, the detection device is attached to the concrete to be tested, and the small pit is tested. The user reads the test data through the display screen.

[0003] However, during the use of the existing concrete carbonation depth measuring instrument, it is necessary to keep it perpendicular to the concrete surface or make the device in a horizontal state, but the surface of the concrete is not in an absolutely flat state, and errors are prone to occur during the detection, resulting in inaccurate detection results. At the same time, in the prior art, before the detection, it is necessary to first use tools such as chisels to open holes in the concrete, and it is also necessary to use spraying equipment to spray alcohol phenolphthalein reagent into the holes before the detection can be carried out. Multiple tools need to be used, which is very troublesome and reduces the efficiency of the detection.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide an automatic detection device for the carbonization depth of concrete structures.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: an automatic detection device for the carbonization depth of a concrete structure, comprising an outer shell, adaptive horizontal members are arranged on both sides of one end of the outer shell, a bubble level is installed on the outer shell, a drilling shell is installed at the top center of the outer shell, a push-type hole-opening mechanism is installed in the drilling shell, and one end of the push-type hole-opening mechanism is connected to a dust suction assembly, a push-type solution spraying assembly is arranged in the outer shell directly below the push-type hole-opening mechanism, a carbonization detection assembly is embeddedly installed on the outer shell below the push-type solution spraying assembly, an L-shaped handle is symmetrically arranged on the end of the outer shell away from the carbonization detection assembly, and an anti-slip sleeve is arranged on the L-shaped handle.

[0007] Preferably, the adaptive horizontal member includes a guide cavity opened at one end of the outer shell, a guide rod is arranged in the guide cavity, the end of the guide rod located outside the guide cavity is connected to a horizontal cross plate, a side support plate is connected to the horizontal cross plate, a T-shaped plate is arranged on the inner side of the side support plate, the outer wall of the outer shell is provided with a T-shaped groove matching the T-shaped plate, and a spring is connected between the T-shaped plate and the inner wall of the T-shaped groove.

[0008] Preferably, the push-type hole-opening mechanism includes a micro motor located in the drilling shell, the output end of the micro motor is connected to the drill bit, the other end of the micro motor is connected to a sliding plate via a connecting column, a strip opening is opened on the drilling shell, and one end of the sliding plate passing through the strip opening is connected to a push block.

[0009] Preferably, the bottom of the sliding plate and the micro motor are both provided with lower guide blocks, the bottom of the drilling shell is symmetrically provided with guide grooves matching with the lower guide blocks, and a second spring is connected between the sliding plate and the inner wall of the drilling shell.

[0010] Preferably, an inner cavity is opened in the drilling shell at one end of the drill bit, a plurality of air intake ports are arranged on the inner wall of the inner cavity, an annular baffle ring is arranged in the inner cavity on the inner side of the air intake port, and an annular rubber ring is arranged at the opening of the inner cavity.

[0011] Preferably, the dust suction assembly includes an annular suction pipe embedded in the inner cavity, the annular suction pipe is provided with a conical suction sleeve corresponding to the suction port, one end of the annular suction pipe is connected to a micro suction pump through a connecting pipe, and a dust suction shell is provided outside the micro suction pump.

[0012] Preferably, a plug-in cavity is provided in the dust collection shell, a baffle is provided at the rear end of the plug-in cavity, an open plug-in shell is provided in the plug-in cavity, and a large-pore filter and a small-pore filter are respectively provided in the open plug-in shell.

[0013] Preferably, the press-type solution spraying assembly includes a pressing cylinder fixed in the outer shell, one end of the pressing cylinder is integrally connected with a conical cylinder, the end of the conical cylinder is integrally connected with a spraying port, and a conical rubber ring is provided in the spraying port, a piston is provided in the pressing cylinder, one end of the piston is connected to a push rod passing through the pressing cylinder, a liquid adding tube passing through the pressing cylinder is also connected to the piston, and a telescopic hose is integrally connected to the liquid adding tube, and a sealing plug is detachably provided at one end of the liquid adding tube located outside the pressing cylinder.

[0014] Preferably, the carbonization detection assembly includes a detection shell embedded in the bottom of the outer shell, a movable cavity is provided in the detection shell, a lower rack and an upper rack are provided on the upper and lower sides of the inner wall of the movable cavity, a gear is meshed between the lower rack and the upper rack, and the center of the gear is movably installed in the detection shell through a movable shaft, guide grooves are provided on the upper and lower inner walls of the movable cavity, and sliding blocks matching the guide grooves are provided on the lower rack and the upper rack, one end of the lower rack is integrally connected with a detection needle, and the end of the upper rack away from the detection needle is integrally connected with a scale plate, and the scale plate can movably pass through one end of the detection shell, and the end of the lower rack away from the detection needle is integrally connected with a connecting block, and a rotating threaded shaft movably passing through one end of the detection shell is connected to the connecting block through a bearing.

[0015] The present invention provides a device for automatically detecting carbonization depth of concrete structure, which has the following beneficial effects:

[0016] By arranging adaptive horizontal parts on both sides of one end of the outer shell and cooperating with a bubble level, the outer shell can be ensured to be always in a horizontal state during detection, thereby ensuring the accuracy of its detection. The push-type hole opening mechanism arranged in the drilling shell can be used to drill holes in concrete before detection, and automatically retract into the drilling shell when not in use. At the same time, the dust generated by drilling can be absorbed by cooperating with a dust suction component during drilling. The set press-type solution spraying component can spray the alcohol phenolphthalein reagent into the drilled hole after drilling, and after it changes color, the discolored part is detected through the action of the carbonization detection component, thereby achieving the effect of detecting the carbonization depth. When used, the present invention can effectively ensure the horizontality of the outer shell during detection and improve the accuracy of its detection. At the same time, the hole opening, spraying reagent and carbonization detection can be combined into one, thereby greatly improving the overall detection efficiency. At the same time, the dust particles generated can be sucked out and cleaned out when the hole is opened, thereby avoiding the particles affecting the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a front view of an automatic detection device for carbonization depth of a concrete structure according to an embodiment of the present invention;

[0019] Figure 2is an enlarged view of an adaptive horizontal member in an automatic detection device for carbonization depth of a concrete structure according to an embodiment of the present invention;

[0020] Figure 3 is a structural schematic diagram of a push-type hole opening mechanism in an automatic detection device for carbonization depth of a concrete structure according to an embodiment of the present invention;

[0021] Figure 4 is an enlarged view of point A in a device for automatically detecting carbonization depth of a concrete structure according to an embodiment of the present invention;

[0022] Figure 5 is a structural schematic diagram of a dust collection component in an automatic detection device for carbonization depth of a concrete structure according to an embodiment of the present invention;

[0023] Figure 6 is a structural schematic diagram of a press-type solution spraying component in an automatic detection device for carbonization depth of a concrete structure according to an embodiment of the present invention;

[0024] Figure 7 It is a structural schematic diagram of a carbonization detection component in an automatic detection device for carbonization depth of a concrete structure according to an embodiment of the present invention.

[0025] In the figure:

[0026] 1. Outer shell; 2. Adaptive level; 3. Bubble level; 4. Drilling shell; 5. Push-type hole opening mechanism; 6. Dust suction assembly; 7. Press-type solution spray assembly; 8. Carbonization detection assembly; 9. L-shaped handle; 10. Anti-slip sleeve; 11. Guide cavity; 12. Guide rod; 13. Horizontal cross plate; 14. Side support plate; 15. T-shaped plate; 16. T-shaped slot; 17. Spring 1; 18. Micro motor; 19. Drill bit; 20. Sliding plate; 21. Guide slot; 22. Lower guide block; 23. Strip opening; 24. Push block; 25. Spring 2; 26. Air inlet; 27. Annular retaining ring; 28. Annular rubber ring; 29. ​​Annular Suction pipe; 30, conical suction sleeve; 31, connecting pipe; 32, dust suction shell; 33, micro suction pump; 34, plug-in cavity; 35, baffle; 36, open plug-in shell; 37, large-pore filter; 38, small-pore filter; 39, pressing cylinder; 40, conical cylinder; 41, spray nozzle; 42, conical rubber ring; 43, piston; 44, push rod; 45, rotating threaded shaft; 46, filling tube; 47, telescopic hose; 48, sealing plug; 49, detection shell; 50, movable cavity; 51, lower rack; 52, upper rack; 53, gear; 54, guide groove; 55, sliding block; 56, detection needle; 57, scale plate; 58, connecting block. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-7 The present invention provides an automatic detection device for the carbonization depth of a concrete structure, comprising an outer shell 1, wherein adaptive horizontal members 2 are arranged on both sides of one end of the outer shell 1, and a bubble level 3 is installed on the outer shell 1. By arranging the adaptive horizontal members 2 on both sides of one end of the outer shell 1 and cooperating with the bubble level 3, the outer shell 1 can be kept in a horizontal state at all times during detection, thereby ensuring the accuracy of the detection. A drilling shell 4 is installed at the top center of the outer shell 1, and a push-type hole-opening mechanism 5 is installed in the drilling shell 4. The push-type hole-opening mechanism 5 arranged in the drilling shell 4 can perform drilling work on concrete before detection, and automatically retracts into the drilling shell 4 when not in use, and the push-type hole-opening mechanism 5 One end of the housing 1 is connected to a dust suction component 6, and the dust suction component 6 is used to absorb dust generated by drilling. A push-type solution spraying component 7 is arranged in the outer shell 1 just below the push-type hole opening mechanism 5, and a carbonization detection component 8 is embeddedly installed on the outer shell 1 below the push-type solution spraying component 7. An L-shaped handle 9 is symmetrically arranged at one end of the outer shell 1 away from the carbonization detection component 8, and an anti-slip cover 10 is arranged on the L-shaped handle 9. After drilling, the push-type solution spraying component 7 can spray the alcohol phenolphthalein reagent into the drilled hole. After the color changes, the color change is detected through the action of the carbonization detection component 8, thereby achieving the effect of detecting the carbonization depth.

[0029] In one embodiment, please refer to the attached manual. Figure 2As shown, the adaptive horizontal member 2 includes a guide cavity 11 opened at one end of the outer shell 1, a guide rod 12 is arranged in the guide cavity 11, and a horizontal cross plate 13 is connected to the end of the guide rod 12 outside the guide cavity 11, and a side support plate 14 is connected to the horizontal cross plate 13, and a T-shaped plate 15 is arranged on the inner side of the side support plate 14. The outer wall of the outer shell 1 is provided with a T-shaped slot 16 matching the T-shaped plate 15, and a spring 17 is connected between the T-shaped plate 15 and the inner wall of the T-shaped slot 16. Before testing, the horizontal cross plate 13 is firstly attached to the surface of the concrete, and pushed inward, so that the horizontal cross plate 13 drives the guide rod 12 to shrink inward, and at the same time, the T-shaped plate 15 on the side support plate 14 slides with the T-shaped slot 16, and then through the action of the spring 17, the horizontality of the outer shell 1 can be guaranteed when facing uneven concrete.

[0030] In one embodiment, please refer to the attached manual. Figure 3-4 As shown, the push-type hole-opening mechanism 5 includes a micro motor 18 located in the drilling shell 4, the output end of the micro motor 18 is connected to a drill bit 19, the other end of the micro motor 18 is connected to a sliding plate 20 through a connecting column, a strip opening 23 is provided on the drilling shell 4, one end of the sliding plate 20 passing through the strip opening 23 is connected to a push block 24, the bottom of the sliding plate 20 and the micro motor 18 are both provided with a lower guide block 22, the bottom of the drilling shell 4 is symmetrically provided with guide grooves 21 matched with the lower guide block 22, a spring 25 is connected between the sliding plate 20 and the inner wall of the drilling shell 4, an inner cavity is provided in the drilling shell 4 at one end of the drill bit 19, a plurality of air intake ports 26 are provided on the inner wall of the inner cavity, and an annular retaining ring 27 is provided on the inner side of the air intake port 26 in the inner cavity, and an annular rubber ring 28 is provided at the opening of the inner cavity. When drilling a hole, first start the micro motor 18 to drive the drill bit 19 to rotate, and at the same time manually advance the push block 24, so that the sliding plate 20 cooperates with the connecting column to drive the micro motor 18 to advance outward, thereby realizing the drilling of the concrete. After the drilling is completed, turn off the micro motor 18, and use the action of the spring 25 to restore the micro motor 18 to its original position.

[0031] In one embodiment, please refer to the attached manual. Figure 5As shown, the dust suction component 6 includes an annular suction pipe 29 embedded in the inner cavity, and a conical suction sleeve 30 corresponding to the suction port 26 is arranged on the annular suction pipe 29, and one end of the annular suction pipe 29 is connected to a micro suction pump 33 through a connecting pipe 31, and a dust suction shell 32 is arranged outside the micro suction pump 33, and a plug-in cavity 34 is opened in the dust suction shell 32, and a baffle 35 is arranged at the tail end of the plug-in cavity 34, and an open plug-in shell 36 is arranged in the plug-in cavity 34, and a large-pore filter 37 and a small-pore filter 38 are respectively arranged in the open plug-in shell 36. The suction force generated by the micro suction pump 33 is produced from the conical suction sleeve 30 through the connecting pipe 31 and the annular suction pipe 29, and finally the dust in the inner cavity is sucked through the suction port 26. The annular baffle ring 27 can block the dust to a certain extent. Finally, the dust-containing air is discharged after double filtration through the large-pore filter 37 and the small-pore filter 38 on the open plug-in shell 36.

[0032] In one embodiment, please refer to the attached manual. Figure 6 As shown, the press-type solution spraying assembly 7 includes a press cylinder 39 fixed in the outer shell 1, one end of the press cylinder 39 is integrally connected with a conical cylinder 40, the end of the conical cylinder 40 is integrally connected with a spraying port 41, and a conical rubber ring 42 is provided in the spraying port 41, a piston 43 is provided in the press cylinder 39, one end of the piston 43 is connected to a push rod 44 passing through the press cylinder 39, a liquid adding tube 46 passing through the press cylinder 39 is also connected to the piston 43, and a telescopic hose 47 is integrally connected to the liquid adding tube 46, and a sealing plug 48 is detachably provided at one end of the liquid adding tube 46 located outside the press cylinder 39. When spraying the reagent, the piston 43 on the push rod 44 is pushed forward in the pressing cylinder 39. Through the effect of air pressure, the alcohol phenolphthalein reagent is compressed by the conical cylinder 40 and then sprayed out through the spray port 41. The conical rubber ring 42 can generate a tension at the end of the spray port 41. When not in use, it can ensure that the alcohol phenolphthalein reagent will not drip out. The liquid adding tube 46 is convenient for adding the alcohol phenolphthalein reagent. With the telescopic hose 47, it can be ensured that the piston 43 will not affect the liquid adding tube 46 when moving. The sealing plug 48 can seal the liquid adding tube 46 when not in use.

[0033] In one embodiment, please refer to the attached manual. Figure 7As shown, the carbonization detection assembly 8 includes a detection shell 49 embedded in the bottom of the outer shell 1, and a movable cavity 50 is arranged in the detection shell 49. A lower rack 51 and an upper rack 52 are arranged on the upper and lower sides of the inner wall of the movable cavity 50. A gear 53 is meshed between the lower rack 51 and the upper rack 52, and the center of the gear 53 is movably installed in the detection shell 49 through a movable shaft. The upper and lower inner walls of the movable cavity 50 are both provided with guide grooves 54, and the lower rack 51 and the upper rack 52 are meshed with each other. The racks 52 are each provided with a sliding block 55 matching the guide groove 54, one end of the lower rack 51 is integrally connected with a detection needle 56, the end of the upper rack 52 away from the detection needle 56 is integrally connected with a scale plate 57, and the scale plate 57 can movably pass through one end of the detection shell 49, the end of the lower rack 51 away from the detection needle 56 is integrally connected with a connecting block 58, and the connecting block 58 is connected to a rotating threaded shaft 45 that movably passes through one end of the detection shell 49 through a bearing. When conducting the test, first rotate the rotating threaded shaft 45, and through the action of the bearing, the connecting block 58 pushes the lower rack 51 forward, so that the detection needle 56 extends until it stops at the junction of the pink and undiscolored colors. At the same time, with the cooperation of the gear 53, the upper rack 52 is driven to move in the opposite direction, so that the upper rack 52 drives the scale plate 57 to extend out of the detection shell 49. The extended length of the scale plate 57 is the depth of the carbonization of the concrete. The guide groove 54 and the sliding block 55 are set to guide the lower rack 51 and the upper rack 52 while limiting their positions, thereby ensuring that the positions of the detection needle 56 and the scale plate 57 can be returned to zero after use.

[0034] In actual application, by arranging adaptive horizontal parts 2 on both sides of one end of the outer shell 1 and cooperating with the bubble level 3, it can be ensured that the outer shell 1 is always in a horizontal state during detection, thereby ensuring the accuracy of its detection. The push-type hole opening mechanism 5 arranged in the drilling shell 4 can be used to drill holes in the concrete before detection, and automatically retract into the drilling shell 4 when not in use. At the same time, the dust generated by drilling is absorbed by cooperating with the dust suction component 6 during drilling. The set press-type solution spraying component 7 can spray the alcohol phenolphthalein reagent into the drilled hole after drilling, and after it changes color, the discolored part is detected through the action of the carbonization detection component 8, thereby achieving the effect of detecting the carbonization depth. When used, the present invention can effectively ensure the horizontality of the outer shell 1 during detection and improve the accuracy of its detection. At the same time, the hole opening, spraying reagent and carbonization detection can be combined into one, which greatly improves the overall detection efficiency. At the same time, the dust particles generated can be sucked out when the hole is opened to avoid the particles affecting the accuracy of the detection.

[0035] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic detection device for carbonization depth of concrete structure, characterized in that: The invention comprises an outer shell (1), wherein adaptive horizontal members (2) are arranged on both sides of one end of the outer shell (1), a bubble level (3) is installed on the outer shell (1), a drilling shell (4) is installed at the top center of the outer shell (1), a push-type hole-opening mechanism (5) is installed in the drilling shell (4), and one end of the push-type hole-opening mechanism (5) is connected to a dust suction component (6), a push-type solution spraying component (7) is arranged in the outer shell (1) directly below the push-type hole-opening mechanism (5), a carbonization detection component (8) is embeddedly installed on the outer shell (1) below the push-type solution spraying component (7), and an L-shaped handle (9) is symmetrically arranged at one end of the outer shell (1) away from the carbonization detection component (8), and an anti-slip sleeve (10) is arranged on the L-shaped handle (9).

2. The automatic detection device for carbonization depth of concrete structure according to claim 1 is characterized in that: The adaptive horizontal member (2) comprises a guide cavity (11) opened at one end of the outer shell (1), a guide rod (12) is arranged in the guide cavity (11), and the end of the guide rod (12) located outside the guide cavity (11) is connected to a horizontal cross plate (13), and a side support plate (14) is connected to the horizontal cross plate (13), and a T-shaped plate (15) is arranged on the inner side of the side support plate (14), and the outer wall of the outer shell (1) is provided with a T-shaped groove (16) matching the T-shaped plate (15), and a spring (17) is connected between the T-shaped plate (15) and the inner wall of the T-shaped groove (16).

3. The automatic detection device for carbonization depth of concrete structure according to claim 2 is characterized in that: The push-type hole-opening mechanism (5) comprises a micro motor (18) located in the drilling housing (4); the output end of the micro motor (18) is connected to a drill bit (19); the other end of the micro motor (18) is connected to a sliding plate (20) via a connecting column; a strip opening (23) is provided on the drilling housing (4); one end of the sliding plate (20) passing through the strip opening (23) is connected to a push block (24).

4. The automatic detection device for carbonization depth of concrete structure according to claim 3 is characterized in that: The bottom of the sliding plate (20) and the micro motor (18) are both provided with a lower guide block (22), the bottom of the drilling housing (4) is symmetrically provided with a guide groove (21) matching the lower guide block (22), and a spring 2 (25) is connected between the sliding plate (20) and the inner wall of the drilling housing (4).

5. The automatic detection device for carbonization depth of concrete structure according to claim 4 is characterized in that: An inner cavity is provided in the drilling shell (4) at one end of the drill bit (19), a plurality of air inlets (26) are provided on the inner wall of the inner cavity, an annular retaining ring (27) is provided in the inner cavity on the inner side of the air inlet (26), and an annular rubber ring (28) is provided at the opening of the inner cavity.

6. The automatic detection device for carbonization depth of concrete structure according to claim 5, characterized in that: The dust suction component (6) comprises an annular suction pipe (29) embedded in the inner cavity, the annular suction pipe (29) being provided with a conical suction sleeve (30) corresponding to the suction port (26), one end of the annular suction pipe (29) being connected to a micro suction pump (33) via a connecting pipe (31), and a dust suction housing (32) being provided outside the micro suction pump (33).

7. The automatic detection device for carbonization depth of concrete structure according to claim 6 is characterized in that: The dust collecting shell (32) is provided with a plug-in cavity (34), a baffle (35) is provided at the rear end of the plug-in cavity (34), an open plug-in shell (36) is provided in the plug-in cavity (34), and a large-pore filter (37) and a small-pore filter (38) are respectively provided in the open-type plug-in shell (36).

8. The automatic detection device for carbonization depth of concrete structure according to claim 7, characterized in that: The press-type solution spraying assembly (7) comprises a press cylinder (39) fixed in the outer shell (1), one end of the press cylinder (39) is integrally connected with a conical cylinder (40), the end of the conical cylinder (40) is integrally connected with a spraying port (41), and a conical rubber ring (42) is arranged in the spraying port (41), a piston (43) is arranged in the press cylinder (39), one end of the piston (43) is connected with a push rod (44) passing through the press cylinder (39), the piston (43) is also connected with a liquid adding pipe (46) passing through the press cylinder (39), and a telescopic hose (47) is integrally connected to the liquid adding pipe (46), and a sealing plug (48) is detachably arranged at one end of the liquid adding pipe (46) located outside the press cylinder (39).

9. The automatic detection device for carbonization depth of concrete structure according to claim 8, characterized in that: The carbonization detection assembly (8) comprises a detection shell (49) embedded in the bottom of the outer shell (1), a movable cavity (50) is arranged in the detection shell (49), a lower rack (51) and an upper rack (52) are arranged on the upper and lower sides of the inner wall of the movable cavity (50), a gear (53) is meshed between the lower rack (51) and the upper rack (52), and the center of the gear (53) is movably installed in the detection shell (49) through a movable shaft, and the upper and lower inner walls of the movable cavity (50) are both provided with guide grooves (54), and the lower rack (51) and the upper rack (52) are meshed with each other. (52) are provided with sliding blocks (55) matching the guide grooves (54), one end of the lower rack (51) is integrally connected with a detection needle (56), the end of the upper rack (52) away from the detection needle (56) is integrally connected with a scale plate (57), and the scale plate (57) can movably pass through one end of the detection shell (49), the end of the lower rack (51) away from the detection needle (56) is integrally connected with a connecting block (58), and the connecting block (58) is connected to a rotating threaded shaft (45) that movably passes through one end of the detection shell (49) through a bearing.

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