Ground breaking drill bit for PID (Proportion Integration Differentiation) detector

Abstract

The utility model relates to a ground breaking drill bit for a PID (proportion integration differentiation) detector, which comprises a conical part and a cylindrical pipe part, the conical part is fixedly connected with the cylindrical pipe part, a plurality of vent holes are distributed on the outer wall of the cylindrical pipe part, vent bolts are respectively arranged at the vent holes and are in threaded connection with the through holes, filter plates are arranged in the middles of the vent bolts, and the filter plates are arranged on the outer wall of the cylindrical pipe part. A sludge discharge port is formed in the lower part of the cylindrical pipe part, a movable baffle plate is arranged at the sludge discharge port, the movable baffle plate is movably connected to the lower edge of the sludge discharge port, and the size of the movable baffle plate is matched with that of the sludge discharge port. According to the soil breaking drill bit, after each detection is completed, muck can be automatically discharged from the soil breaking drill bit, the muck is prevented from remaining in the soil breaking drill bit, the detection accuracy of VOCs gas in the muck can be improved, the muck can be prevented from being accumulated, an air flow channel can be prevented from being blocked, and the smoothness of the air flow channel is guaranteed; and the ground breaking drill bit does not need to be detached from the PID detector for cleaning, so that the working efficiency of the detection equipment can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of solid waste pollution rapid detection, especially a kind of soil breaking drill bit for PID detector. BACKGROUND

[0002] PID detector is the detection equipment for detecting VOCs gas pollutants in solid waste, which can be used to detect the content of VOCs gas pollutants in slag soil, and in the traditional scheme, when detecting VOCs gas pollutants in slag soil, the slag soil is usually sampled first, then the sampled slag soil is transported to VOCs gas detector, and then the VOCs gas content in the slag soil is detected by VOCs gas detector.Currently, the latest slag detection device uses soil breaking drill bit, which breaks the surface layer of slag soil during detection, inserts into the slag soil, sucks the gas in the slag soil, and then transports the gas to PID detection host computer through the pipe, and detects the VOCs gas content in the gas by PID detection host computer.The lower end of the existing soil breaking drill bit is conical part, the middle part is cylindrical tube, the outer wall of the cylindrical tube part is provided with through hole, the through hole is provided with bolt for preventing slag soil from entering, and the middle part of the bolt is provided with filter screen, and the disadvantages of the scheme are that the slag soil will inevitably enter the inside of the cylindrical tube, and the entered slag soil is not easy to clean, and will accumulate with the extension of use time, and the slag soil accumulated in the cylindrical tube of soil breaking drill bit will not only affect the accuracy of detection result, but also hinder the passage of air flow when the slag soil amount accumulates to a certain degree, and to remove the slag soil, the soil breaking drill bit must be removed and washed with water, which is complicated to operate, and the cleaning frequency is high, which will greatly affect the working efficiency of PID detector. SUMMARY

[0003] The utility model aims at the problems of the existing soil breaking drill bit in the background art, and provides a soil breaking drill bit for PID detector.

[0004] To achieve the above object, the utility model realizes by the following technical scheme:

[0005] A soil breaking drill bit for PID detector, which comprises a conical part and a cylindrical tube part, the conical part is fixedly connected with the cylindrical tube part, the outer wall of the cylindrical tube part is distributed with a plurality of air holes, the air holes are respectively provided with air bolts, the air bolts are threadedly connected with the air holes, the middle part of the air bolt is provided with a filter plate, the lower part of the cylindrical tube part is provided with a mud discharge port, the mud discharge port is provided with a movable baffle, the movable baffle is movably connected with the lower edge of the mud discharge port, and the size of the movable baffle matches the size of the mud discharge port.

[0006] In the above scheme, the sludge discharge port is a downward inclined port. Through this arrangement, the soil entering the cavity of the cylindrical pipe portion from the air vent bolt is more easily discharged through the sludge discharge port.

[0007] In the above scheme, the air vent bolt is a cylindrical pipe, which is provided with external threads on its outer wall and an airflow passage in its interior, the airflow passage communicates with the cavity inside the cylindrical pipe portion, a filter plate is arranged in the middle of the airflow passage, the filter plate is provided with a plurality of filter holes, and an assembly auxiliary groove is arranged at the outer side end of the air vent bolt. Through this arrangement, the air vent bolt can be connected with the cylindrical pipe portion through threads, and the filter plate on the air vent bolt can block the passage of soil in the slag soil, the filter plate is arranged in the middle of the airflow passage, which can have a certain gap between the filter plate and the slag soil, which is more conducive to sucking the gas in the slag soil into the airflow passage, and the assembly auxiliary groove facilitates the assembly of the air vent bolt on the cylindrical pipe portion, for example, the assembly auxiliary groove can be a slot, and a slot screwdriver can be used to assemble the air vent bolt during assembly.

[0008] In the above scheme, the inner side end of the air vent bolt is provided with a stepped surface, and a corresponding positioning stepped surface is arranged in the air vent hole of the cylindrical pipe portion. Through the arrangement of the stepped surface and the positioning stepped surface, the air vent bolt can be assembled in place during assembly, avoiding loosening of the air vent bolt.

[0009] In the above scheme, the upper end of the cylindrical pipe portion is further provided with an annular assembly positioning portion, the middle of the annular assembly positioning portion is provided with a through hole corresponding to the internal cavity of the cylindrical pipe portion, a sealing groove is arranged on the annular assembly positioning portion, a sealing ring is arranged in the sealing groove, the sealing ring is arranged on the radial outer side of the through hole, and an assembly hole for assembling the soil breaking drill bit is arranged on the annular assembly positioning portion. Through the arrangement of the annular assembly positioning portion, the soil breaking drill bit can be more conveniently assembled on the PID detector, during assembly, the through hole in the middle of the annular assembly positioning portion is used to connect the gas pipe joint, through the arrangement of the sealing ring, the soil breaking drill bit and the gas pipe joint have good air tightness, and through the arrangement of the assembly hole, the soil breaking drill bit can be fixed to the PID detector by bolts.

[0010] In the above scheme, the cavity bottom of the cylindrical pipe portion is provided with a conical protrusion, and the conical protrusion is arranged on the inner side of the sludge discharge port. Through the arrangement of the conical protrusion, the slag soil falling to the cavity bottom can reach the sludge discharge port along the inclined surface of the conical protrusion, making the discharge of the slag soil more smooth.

[0011] The utility model discloses a positive effect has: 1) the utility model discloses a soil breaking drill bit for PID detector, through setting up the mud discharge port in the lower part of the cylindrical pipe body part of soil breaking drill bit, setting up the movable baffle at the lower edge of mud discharge port, when soil breaking drill bit inserts into the slag soil, under the push of slag soil, movable baffle overturns upward, and blocks at mud discharge port, makes mud discharge port close, when soil breaking drill bit inserts into the slag soil predetermined depth, through PID detector host draws air, forms negative pressure, makes the gas in slag soil enter the cylindrical pipe department through the aeration bolt, enters PID detector host again through the air pipe connector, can obtain the VOCs gas content in slag soil through detection, when soil breaking drill bit is taken out from slag soil after detection, under the action of gravity, movable baffle opens downward, and the slag soil in the cylindrical pipe department in the air drawing process can be discharged through mud discharge port under the action of gravity, through this setting, after each detection, slag soil can be discharged from soil breaking drill bit automatically, avoids the retention of slag soil in soil breaking drill bit, can improve the accuracy of VOCs gas detection in slag soil, and can prevent slag soil accumulation, and block airflow channel, guarantee the unobstructed of airflow channel, 2) the utility model discloses a soil breaking drill bit for PID detector, and slag soil can be discharged from mud discharge port automatically under the action of gravity, need not remove soil breaking drill bit from PID detector and clean, greatly reduces the consumption of equipment downtime maintenance time, can improve the work efficiency of detection equipment. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the soil breaking drill bit for PID detector of the utility model.

[0013] Figure 2 It is the outside structure schematic diagram of the aeration bolt.

[0014] Figure 3 It is the inside structure schematic diagram of the aeration bolt.

[0015] Figure 4 It is the overhead structure schematic diagram of annular assembly positioning part.

[0016] Figure 5 It is the structure schematic diagram of one application mode of the soil breaking drill bit of the utility model.

[0017] The reference numeral in the drawing is, conical part 1, cylindrical pipe part 2, cavity 21, aeration hole 22, mud discharge port 23, conical protrusion 24, annular assembly positioning part 3, through -hole 31, sealing ring 32, assembly hole 33, aeration bolt 4, airflow channel 41, filter plate 42, assembly auxiliary groove 43, step face 44, movable baffle 5, air pipe connector 6, PID host 7, DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described clearly and completely below through embodiments. Obviously, the described embodiments are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0019] As Figures 1-4 shown, the soil breaking drill bit for the PID detector comprises a conical part 1 and a cylindrical tube part 2, and the conical part 1 is fixedly connected with the cylindrical tube part 2.

[0020] The conical part 1 and the cylindrical tube part 2 need to be made of a material with certain strength, for example, a high-strength alloy material can be preferably used.

[0021] The conical part 1 and the cylindrical tube part 2 can be integrally formed, or can be fixedly connected in a manner of welding or screwing.

[0022] The cylindrical tube part 2 is internally provided with a cavity 21, and the outer wall of the cylindrical tube part 2 is distributed with a plurality of air holes 22. The number and distribution of the air holes 22 can be designed according to requirements, for example, they can be divided into multiple rows and columns and evenly distributed along the circumferential wall of the cylindrical tube part.

[0023] As Figure 2 and 3 shown, an air hole bolt 4 is arranged at each air hole 22. The air hole bolt 4 is a cylindrical tube-shaped piece, is externally provided with external threads, is internally provided with an airflow channel 41, and the airflow channel 41 is in communication with the cavity 21 inside the cylindrical tube part 2. A filter plate 42 is arranged in the middle of the airflow channel 41, and the filter plate 42 is distributed with a plurality of filter holes. An assembly auxiliary groove 43 is arranged at the outer end of the air hole bolt 4. Through this arrangement, the air hole bolt 4 and the cylindrical tube part 2 can be connected by screwing, and the filter plate 42 on the air hole bolt 4 can block the passage of soil in the slag soil. The filter plate 42 is arranged in the middle of the airflow channel 41, so that the filter plate 42 has a certain gap with the slag soil, which is more conducive to sucking the gas in the slag soil into the airflow channel. The assembly of the air hole bolt 4 on the cylindrical tube part 2 is facilitated by arranging the assembly auxiliary groove 43. For example, the assembly auxiliary groove 43 can be a slot, and a slot-shaped screwdriver can be used to assemble the air hole bolt during assembly.

[0024] The inner end of the air hole bolt 4 is provided with a stepped surface 44, and a corresponding positioning stepped surface is arranged in the air hole 22 of the cylindrical tube part 2. Through the arrangement of the stepped surface 44 and the positioning stepped surface, the air hole bolt 4 can be assembled in place during assembly, and the loosening of the air hole bolt 4 is avoided.

[0025] A sludge discharge port 23 is arranged at the lower part of the cylindrical pipe part 2, and the sludge discharge port 23 is preferably a downward inclined port. In this way, the sludge entering the cavity of the cylindrical pipe part 2 from the air pipe joint 4 can be more easily discharged through the sludge discharge port.

[0026] An active baffle 5 is arranged at the sludge discharge port 23, and the active baffle 5 is movably connected to the lower edge of the sludge discharge port 23. The size of the active baffle 5 matches the size of the sludge discharge port 23.

[0027] As a preferred solution, a conical protrusion 24 can be arranged at the bottom of the cavity of the cylindrical pipe part 2, and the conical protrusion 24 is arranged at the inner side of the sludge discharge port 23. Through the arrangement of the conical protrusion 24, the sludge falling to the bottom of the cavity can slide along the inclined surface of the conical protrusion 24 to the sludge discharge port 23, so that the sludge can be more smoothly discharged.

[0028] As shown in Figure 1 and 4 As an optional solution, an annular assembly positioning part 3 is further arranged at the upper end of the cylindrical pipe part 2. The middle part of the annular assembly positioning part 3 is provided with a through hole 31 corresponding to the internal cavity 21 of the cylindrical pipe part 2. A sealing groove is arranged on the annular assembly positioning part, and a sealing ring 32 is arranged in the sealing groove. The sealing ring 32 is arranged at the radial outer side of the through hole. An assembly hole 33 for the assembly of the soil breaking drill bit is arranged on the annular assembly positioning part. Through the arrangement of the annular assembly positioning part 3, the soil breaking drill bit can be more conveniently assembled to the PID detector. When assembled, the through hole in the middle part of the annular assembly positioning part 3 is used to connect the air pipe joint 6. Through the arrangement of the sealing ring 32, the soil breaking drill bit and the air pipe joint 6 can have good air tightness. Through the arrangement of the assembly hole 33, the soil breaking drill bit can be conveniently fixed to the PID detector or the shell bottom plate of the detection equipment through bolts.

[0029] As shown in Figure 5As shown, the detection assembly of the soil breaking drill bit for the PID detector can fix the soil breaking drill bit below the PID detector host or below the shell seat plate of the muck detector through bolts during assembly, the muck detector can be a detector for detecting the VOCs gas content of muck alone, or can be a detector for detecting multiple parameters in muck, for example, heavy metal detectors, pH detectors, humidity detectors and the like can be set in the detector according to requirements. Then the gas pipe joint is fixed and sealed with the soil breaking drill bit, and the gas pipe joint is connected with the PID detector host through the gas pipe. When the muck is detected, the PID detector or the muck detector is driven by the driving device to move towards the muck, so that the soil breaking drill bit breaks the surface layer of the muck and is inserted into the muck, and in the process of inserting the soil breaking drill bit into the muck, the movable baffle is upwardly movable under the action of the resistance of the muck, and is blocked at the mud discharge port, so that the mud discharge port is closed, when the soil breaking drill bit is inserted into the muck to a predetermined depth, the soil breaking drill bit is stopped in the muck, the PID detector host is started, and the air suction is started, a negative pressure is formed in the cavity in the soil breaking drill bit, so that the gas in the muck is sucked into the soil breaking drill bit, and then the gas pipe joint and the gas pipe enter the PID detector host, and the VOCs gas content is detected. After the detection is completed, the driving device drives the PID detector or the muck detector to withdraw from the muck, and after the soil breaking drill bit leaves the muck, the movable baffle is downwardly movable under the action of gravity, so that the mud discharge port is opened, and the muck in the cavity of the cylindrical pipe part during the detection is discharged through the mud discharge port. In this process, if there is muck inside the mud discharge port, the movable baffle will also be opened under the action of the gravity of the muck, so that the movable baffle is more smoothly opened, and the mud discharge port is set as a downward slope, so that the muck is more easily discharged through the mud discharge port.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A soil breaking drill bit for a PID detector, characterized by, It includes a conical part and a cylindrical tube part, the conical part is fixedly connected with the cylindrical tube part, a plurality of ventilation holes are distributed on the outer wall of the cylindrical tube part, a ventilation bolt is arranged at each ventilation hole respectively, the ventilation bolt is threadedly connected with the through hole, a filter plate is arranged at the middle part of the ventilation bolt, a sludge discharge port is arranged at the lower part of the cylindrical tube part, a movable baffle is arranged at the sludge discharge port, the movable baffle is movably connected at the lower edge of the sludge discharge port, the size of the movable baffle is matched with the size of the sludge discharge port.

2. The soil breaking drill bit for a PID detector of claim 1, wherein: The sludge discharge port is a downward inclined plane port.

3. The soil breaking drill bit for a PID detector of claim 1, wherein: The ventilation bolt is a cylindrical tube, external threads are arranged on the outer wall of the ventilation bolt, an airflow channel is arranged in the inner part of the ventilation bolt, the airflow channel is communicated with the cavity in the cylindrical tube part, a filter plate is arranged at the middle part of the airflow channel, a plurality of filter holes are distributed on the filter plate, an assembly auxiliary groove is arranged at the outer end of the ventilation bolt.

4. The soil breaking drill bit for a PID detector of claim 3, wherein: The inner end of the ventilation bolt is provided with a stepped surface, and a corresponding positioning stepped surface is arranged in the ventilation hole of the cylindrical tube part.

5. The soil breaking drill bit for a PID detector of claim 3, wherein: The upper end of the cylindrical tube part is further provided with an annular assembly positioning part, a through hole corresponding to the internal cavity of the cylindrical tube part is arranged at the middle part of the annular assembly positioning part, a sealing groove is arranged on the annular assembly positioning part, a sealing ring is arranged in the sealing groove, the sealing ring is arranged at the radial outer side of the through hole, and an assembly hole for assembling a soil breaking drill bit is arranged on the annular assembly positioning part.

6. The soil breaking drill bit for a PID detector of claim 3, wherein: The cavity bottom of the cylindrical tube part is provided with a conical protrusion, and the conical protrusion is arranged at the inner side of the sludge discharge port.

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