CN103954475A - Dust taking apparatus for concrete of solid structure - Google Patents
Dust taking apparatus for concrete of solid structure Download PDFInfo
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- CN103954475A CN103954475A CN201410185169.9A CN201410185169A CN103954475A CN 103954475 A CN103954475 A CN 103954475A CN 201410185169 A CN201410185169 A CN 201410185169A CN 103954475 A CN103954475 A CN 103954475A
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- powder
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Abstract
The invention discloses a dust taking apparatus for concrete of a solid structure, which comprises a machine frame, wherein the machine frame is provided with a dust drilling mechanism for performing dust drilling on test samples, a first drive part for driving the dust drilling mechanism to rotate and a second drive part for driving the dust drilling mechanism and the first drive part to integrally rise and fall; the machine frame is also provided with a linear guide rail for supporting and guiding the first drive part to move in the vertical direction; the dust drilling mechanism comprises a drill bit and a regulating component for regulating the operating range of the drill bit; a height-adjustable dust sample collector is arranged behind the drill bit; and the distance between the front end of the height-adjustable dust sample collector and the front end of the drill bit in the axial direction of the drill bit is the thickness of one test sample dust taking layer. According to the invention, the dust taking apparatus can achieve the functions of uniform drill speed during dust drilling, layer-by-layer accurate control on drilling and grinding depth, automatic dust sample collection and the like, reduce the labor intensity of dust drilling and improve the test accuracy.
Description
Technical field
The invention belongs to civil engineering work testing equipment field, relate in particular to a kind of entity structure concrete and get powder equipment.
Background technology
Concrete expert and engineering reality all show both at home and abroad, thereby villaumite causes that it is topmost failure mode that steel bar corrosion causes structure premature failure.In recent decades, the method that characterizes ion penetration resistance of concrete is that test chlorion under electric field action is invaded speed mostly, and in Quick Measuring test result and entity structure, the intrusion rule of chlorion has very big-difference.
In order to understand in time the chlorine ion concentration regularity of distribution in entity structure concrete, make as early as possible applicable economic structure durability design proposal again, for the cost that reduces works life cycle management, be significant, this is also the target place that domestic and international field of civil engineering expert studies for a long time.At present, the detection distributing for the concrete chlorine ion concentration of entity structure has two classes, one class is that on-the-spot entity structure is got a collection of core, put together again abrasive dust on core, getting core and abrasive dust is all concentrative operation, has accumulated the concentration of removing again to test each depth chlorion after a collection of core, adds the fixture job requirements of indoor abrasive dust, the core height that scene drills through is more much larger than the degree of depth of actual abrasive dust, larger to the harm of entity structure; An other class, with hand-held hammering drill punching, directly get powder at the scene, but because the bore diameter of reciprocating drill is less, its vibration in drilling process in addition, can touch surperficial concrete while getting the powder sample of depths, a large amount of evidences, the more inner height of concentration of the corrosive mediums such as chlorion in the concrete of top layer is a lot, and the not long situation of Years Of Service especially, such as 5 years, within 10 years, this will cause the representativeness of got powder sample greatly to reduce.Equations of The Second Kind method also has following defect: 1) in the process of drillings, operating personnel need to ceaselessly measure drilling depth, and when approaching the degree of depth requiring, frequent shutdown, to guarantee that powder sample, at set depth range, causes drillings inefficiency; 2) by a not too thick annular billet, limit drill bit scope of work, but in actual drillings process, drill bit can be encountered the edge on top layer unavoidably, and top layer powder sample on the test result impact of which floor powder sample below significantly, just because of cannot guarantee to bore drill bit in the process of grinding lower one deck, do not brush up against each layer above, cause test result distortion; 3) manual operation causes drill bit drill speed to have very large randomness, the powder sample fineness difference that directly causes boring mill is large (from several microns to 1mm) very, and in the time period that powder sample dissolves in the acid solution of arranging or water, the grain size of powder sample for the how many impacts of the chlorion being dissolved out significantly; 4) bore and ground after one deck, need to shut down, and the powder sample that bores mill is collected and taken out; existing equipment is difficult to powder sample to be cleaned out; the random powder sample that is mingled with last layer in lower floor's powder sample, and the concrete content of uncertain impact, thus test result distortion caused.In addition, also there is the defects such as control accuracy is low, test error is large, operating efficiency is low, labor strength is large in existing drillings equipment, cannot adapt to the drillings work of test specimen in enormous quantities.
As can be seen here, prior art awaits further improving.
Summary of the invention
The present invention is the weak point of avoiding above-mentioned prior art to exist, provides a kind of entity structure concrete to get powder equipment.
The technical solution adopted in the present invention is:
A kind of entity structure concrete is got powder equipment, comprise frame, in frame, be provided with for test specimen being carried out to the drillings mechanism of drillings, drive the first drive division of described drillings mechanism rotation and drive described drillings mechanism and the second drive division of the first drive division integral elevating, in frame, be also provided with the line slideway for supporting and guiding the first drive division to move up and down, drillings mechanism comprises drill bit and the adjusting part that the scope of work of drill bit is adjusted, the rear of drill bit is provided with adjustable height powder sample gatherer, the distance that the front end of adjustable height powder sample gatherer and chisel edge make progress at drill bit shaft is the thickness that a sample is got bisque.
Described drill bit comprises knife rest and cutter, knife rest comprises connected left socle and right support, the relative position place of left and right support inner side all offers chute, described adjusting part comprises the cutter back up pad for mounting cutter, in the left and right both ends of the surface of cutter back up pad, all convex with first slide block suitable with chute, the top of cutter back up pad is installed with tooth bar, and the top of tooth bar is provided with the gear being meshed with tooth bar, in gear, be equipped with gear shaft, gear shaft runs through left and right support.
Described the first drive division comprises motor, the output shaft of motor is connected with the transmission shaft that is arranged on cutter top by sleeve, motor is arranged on the inside of frame by motor mounting rack, the both sides of motor mounting rack are respectively arranged with second slide block suitable with above-mentioned line slideway.
Described the second drive division comprises leading screw and the rotating disc that is arranged on leading screw top, and the top of frame is installed with the nut suitable with leading screw, and the top of frame also offers the through hole that can pass for leading screw, and leading screw is connected with the first drive division through after this through hole.
Described adjustable height powder sample gatherer integral body is round end spade shape, and it comprises the collection tube of collecting head and being connected with the first body of collection, and collection tube is connected with collection head, and the bottom of collection tube offers powder spout.
Described adjustable height powder sample gatherer is positioned at the rear of motor mounting rack, the top of motor mounting rack is provided with height arm control, this height arm control comprises the expansion sleeve being nested with outside collection tube and the degree of tightness adjusting part that the swelling degree of described expansion sleeve is regulated, this degree of tightness adjusting part comprises adjusting bolt, one end of adjusting bolt is connected with expansion sleeve, the other end is connected with the locating piece that is installed in motor mounting rack top, the outside of adjusting bolt is equipped with screw shell, and on screw shell, cross-under has rotary handle.
The bottom of described motor mounting rack is provided with the limiting section that prevents that adjustable height powder sample gatherer from rocking, this limiting section comprises the mount pad that is installed in respectively both sides, motor mounting rack bottom, between two mount pads, be equipped with gag lever post, adjustable height powder sample gatherer is between gag lever post and motor mounting rack.
The outside of described left and right support is respectively arranged with the limit assembly that prevents that drill bit from moving left and right, limit assembly comprises and is nested with at the ratchet of gear shaft terminal and is arranged on respectively on left and right support and the rotation of each ratchet is played to the card article of inhibition, between card article and left and right support, be provided with the spring for card article is locked, between ratchet and gear shaft for key is connected, the ratchet of two ratchets towards the opposite.
Described frame comprises top board and the left and right back up pad being connected with both sides, top board bottom respectively, above-mentioned line slideway has two, it is arranged on respectively the relative position place of left and right back up pad inner side, the front end of left support plate is fixed with the riser concordant with the front end face of motor mounting rack, the top of riser is provided with top-down rule, and the left side top of motor mounting rack is provided with pointer.
One side of described frame is provided with blower fan and the controller for described blower fan and motor are controlled.
Owing to having adopted technique scheme, the obtained beneficial effect of the present invention is:
1, the present invention can realize at the uniform velocity drillings drill speed, different depth place powder sample do not mix mutually, successively bore the mill accurate control of the degree of depth, the height of powder sample particle is even and the functions such as automatic collection of powder sample, significantly improved the representativeness of powder sample, the labour intensity that has reduced drillings, has improved measuring accuracy.
2, topology layout of the present invention is compact, and whole operating process is simple, and has effectively reduced operator's labor capacity; In addition, the present invention has higher control accuracy and operating efficiency, and test error is less, and labor strength is lower, can adapt to the drillings work of test specimen in enormous quantities.
3, the present invention be mainly used in the entity structure Chloride Ion in Concrete regularity of distribution while detecting different depth place get powder, simple in structure, installation and maintenance are convenient and cost of manufacture is lower.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention looks over from a side.
Fig. 2 is the structural representation that the present invention looks over from opposite side.
Fig. 3 shows decomposition texture schematic diagram of the present invention.
Fig. 4 shows the bit part in the present invention, is its decomposition texture principle schematic.
Fig. 5 is the partial enlarged drawing at A place in Fig. 1.
Fig. 6 shows the structural representation of height arm control in the present invention.
Wherein,
1, frame 101, top board 102, left support plate 103, right support 104, web joint 105, location-plate 106, riser 107, through hole 108, rule 109, pointer 110, line slideway 2, the second drive division 201, rotating disc 202, leading screw 3, the first drive division 301, motor mounting rack 302, motor 303, the second slide block 4, drill bit 401, cutter 402, left socle 403, right support 404, chute 405, sleeve 5, adjustable height powder sample gatherer 501, collect 502, collection tube 503, powder spout 6, height arm control 601, expansion sleeve 602, adjusting bolt 603, screw shell 604, rotary handle 605, locating piece 7, adjusting part 701, cutter back up pad 702, the first slide block 703, tooth bar 704, gear 705, gear shaft 8, limit assembly 801, ratchet 802, card article 803, spring 9, limiting section 901, mount pad 902, gag lever post 10, blower fan 11, controller
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail, but the present invention is not limited to these embodiment.
As shown in Figure 1 to Figure 3, a kind of entity structure concrete is got powder equipment, comprise frame 1, in frame 1, be provided with for test specimen being carried out to the drillings mechanism of drillings, drive the first drive division 3 of described drillings mechanism rotation and drive described drillings mechanism and the second drive division 2 of the first drive division 3 integral elevatings, in frame 1, be also provided with the line slideway 110 for supporting and guiding the first drive division 3 to move up and down, described frame 1 comprises top board 101 and the left support plate 102 and the right support plate 103 that are connected with top board 101 both sides, bottom respectively, above-mentioned line slideway 110 has two, it is arranged on respectively a left side, the relative position place of right support plate inner side, left, the outside, bottom of right support plate is all fixed with for being fixed on the location-plate 105 on test wall, on location-plate 105, offer pilot hole, left, the bottom of right support plate is connected by web joint 104, the adjusting part 7 that described drillings mechanism comprises drill bit 4 and the scope of work of drill bit 4 is adjusted, the rear of drill bit 4 is provided with adjustable height powder sample gatherer 5, and the front end of adjustable height powder sample gatherer 5 and the drill bit 4 front ends distance on drill bit 4 is axial is the thickness that a sample is got bisque.
As shown in Figures 3 and 4, described drill bit 4 comprises knife rest and cutter 401, knife rest comprises connected left socle 402 and right support 403, left, the relative position place of right support inner side all offers chute 404, described adjusting part 7 comprises the cutter back up pad 701 for mounting cutter 401, a left side for cutter back up pad 701, in right both ends of the surface, all convex with first slide block 702 suitable with chute 404, the top of cutter back up pad 701 is installed with tooth bar 703, the top of tooth bar 703 is provided with the gear 704 being meshed with tooth bar 703, in gear 704, be equipped with gear shaft 705, it is left that gear shaft 705 runs through, right support, in the course of work, rotary teeth wheel shaft 705 can be selected the size of drill bit 4 operating radius, increasing along with drilling depth, can be by 705 driven gear 704 rotations of rotary teeth wheel shaft, and then with the transverse shifting of carry-over bar 703, the movement of tooth bar 703 is ordered about cutter back up pad 701 and is moved along chute 404, finally changed the operating radius of the cutter 401 being arranged in cutter back up pad 701, visible, it is adjustable that the structural design of rack-and-pinion has realized drillings area in the situation that not changing drill bit 4 size, along with the increasing of drilling depth, drillings area dwindles gradually, thereby reduced and at different depth place, got the impact of powder on adjacent degree of depth powder sample, improved the representativeness of powder sample.In addition, a described left side, the outside of right support is respectively arranged with the limit assembly 8 that prevents that drill bit 4 from moving left and right, limit assembly 8 comprises and is nested with at the ratchet 801 of gear shaft terminal and is arranged on respectively a left side, on right support and the rotation of each ratchet 801 is played to the card article 802 of inhibition, card article 802 is with left, between right support, be provided with the spring 803 for card article 802 is locked, between ratchet 801 and gear shaft 705 for key is connected, the ratchet of two ratchets 801 towards the opposite, one in two ratchets 801 for preventing that drill bit 4 is to left movement, another moves right for preventing drill bit 4, thereby guaranteed that the scope of work of drill bit 4 in drillings process midplane and depth direction can not change.
As Fig. 1, shown in Fig. 3 and Fig. 5, described the first drive division 3 comprises motor 302, the output shaft of motor 302 is connected with the transmission shaft that is arranged on cutter 401 tops by sleeve 405, motor 302 is arranged on the inside of frame 1 by motor mounting rack 301, the both sides of motor mounting rack 301 are respectively arranged with second slide block 303 suitable with above-mentioned line slideway 110, the front end of described left support plate 102 is fixed with the riser concordant with the front end face of motor mounting rack 301 106, the top of riser 106 is provided with top-down rule 108, the left side top of motor mounting rack 301 is provided with pointer 109, rule 108 gets information about for the degree of depth that pierces to drill bit 4, each pierce the degree of depth and can on rule 108, intuitively read, thereby realized, the degree of depth that pierces of drill bit 4 is reached to accurate control, effectively reduced experimental error.
As shown in Fig. 2, Fig. 3 and Fig. 6, described adjustable height powder sample gatherer 5 integral body are round end spade shape, it comprise collect 501 and with collect a collection tube that 501 one are connected 502, collection tube 502 with collect 501 and be connected, the bottom of collection tube 502 offers powder spout 503, by this powder spout 503, the concrete powder grinding is derived, described adjustable height powder sample gatherer 5 is positioned at the rear of motor mounting rack 301, the top of motor mounting rack 301 is provided with height arm control 6, by this height arm control 6, realize the adjusting of the distance that the front end of adjustable height powder sample gatherer 5 and drill bit 4 footpaths are made progress, this height arm control 6 comprises and being nested with at the expansion sleeve 601 in collection tube 502 outsides and the degree of tightness adjusting part that the swelling degree of described expansion sleeve 601 is regulated, this degree of tightness adjusting part comprises adjusting bolt 602, one end of adjusting bolt 602 is connected with expansion sleeve 601, the other end is connected with the locating piece 605 that is installed in motor mounting rack 301 tops, the outside of adjusting bolt 602 is equipped with screw shell 603, on screw shell 603, cross-under has rotary handle 604, the bottom of described motor mounting rack 301 is provided with the limiting section 9 that prevents that adjustable height powder sample gatherer 5 from rocking, this limiting section 9 comprises the mount pad 901 that is installed in respectively motor mounting rack 301 both sides, bottom, between two mount pads 901, be equipped with gag lever post 902, adjustable height powder sample gatherer 5 is between gag lever post 902 and motor mounting rack 301.
As shown in Figure 1 to Figure 3, described the second drive division 2 comprises leading screw 202 and is arranged on the rotating disc 201 on leading screw 202 tops, the top of frame 1 is welded with the nut 203 suitable with leading screw 202, on described top board 101, offer the through hole 107 that can pass for leading screw 202, leading screw 202 is connected with motor mounting rack 301 through after this through hole 107, under the acting in conjunction of leading screw 202 and nut 203, handle the rotating of rotating disc 201, can on line slideway 110, slidably reciprocate by pushing motor erecting frame 301, thereby realized advancing and retreating of drill bit 4, line slideway 110 has guaranteed that transversal displacement does not occur drill bit 4 in the course of the work effectively, and effectively guaranteed the axially identical with its direct of travel of drill bit 4, it is firmly even when drill bit 4 is advanced.
As shown in Figures 1 and 3, one side of described frame 1 is provided with blower fan 10 and the controller 11 for described blower fan 10 and motor 302 are controlled, blower fan 10 is got after powder for residual powder sample is removed every one deck, thereby reduced interacting of adjacent depth powder sample, improve the representativeness of powder sample, and then improved measuring accuracy.
The present invention be mainly used in the entity structure Chloride Ion in Concrete regularity of distribution while detecting different depth place get powder, the course of work of the present invention is roughly: frame 1 is fixed on to the operating radius that drill bit 4 is adjusted in test after wall, record pointer 109 is the data of the rule 108 of indication this moment, starter motor 302, concrete sample slowly contacts drill bit 4, drill bit 4 starts drillings, powder sample falls at random adjustable height powder sample gatherer 5 and derives from powder spout 503, when drilling depth reaches predetermined value, controller 11 is controlled motor 302 stalls, drill bit 4 stops creeping into, thereby rotary teeth wheel shaft 705 dwindles the operating radius of drill bit 4, and adjust the height of adjustable height powder sample gatherer 5, open blower fan 10, the wind producing by blower fan 10 is removed the inner residual powder of boring, repeat aforesaid operations, until drilling depth reaches predetermined maximal value, after treating drillings, convolution rotating disc 201 makes drill bit 4 separated with test wall, disable motor 302, whole drillings process finishes.
The part of not addressing in the present invention adopts or uses for reference prior art and can realize.
In description of the invention, it will be appreciated that, term " on ", orientation or the position relationship of the indication such as D score, 'fornt', 'back', " left side ", " right side ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as limitation of the present invention.
In addition, " first " in the present invention, " second " be only for describing object, and can not be interpreted as indication or hint relative importance.
Although more used terms such as frame 1, left support plate 102, rule 108, the second drive division 2, rotating disc 201, motor mounting rack 301, powder spout 503, height arm control 6, screw shell 603, adjusting part 7, controller 10 herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Need to further illustrate, specific embodiment described herein is only to spiritual example explanation of the present invention.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (10)
1. an entity structure concrete is got powder equipment, it is characterized in that: comprise frame, in frame, be provided with for test specimen being carried out to the drillings mechanism of drillings, drive the first drive division of described drillings mechanism rotation and drive described drillings mechanism and the second drive division of the first drive division integral elevating, in frame, be also provided with the line slideway for supporting and guiding the first drive division to move up and down, drillings mechanism comprises drill bit and the adjusting part that the scope of work of drill bit is adjusted, the rear of drill bit is provided with adjustable height powder sample gatherer, the distance that the front end of adjustable height powder sample gatherer and chisel edge make progress at drill bit shaft is the thickness that a sample is got bisque.
2. a kind of entity structure concrete according to claim 1 is got powder equipment, it is characterized in that: described drill bit comprises knife rest and cutter, knife rest comprises connected left socle and right support, left, the relative position place of right support inner side all offers chute, described adjusting part comprises the cutter back up pad for mounting cutter, a left side for cutter back up pad, in right both ends of the surface, all convex with first slide block suitable with chute, the top of cutter back up pad is installed with tooth bar, the top of tooth bar is provided with the gear being meshed with tooth bar, in gear, be equipped with gear shaft, it is left that gear shaft runs through, right support.
3. a kind of entity structure concrete according to claim 2 is got powder equipment, it is characterized in that: described the first drive division comprises motor, the output shaft of motor is connected with the transmission shaft that is arranged on cutter top by sleeve, motor is arranged on the inside of frame by motor mounting rack, the both sides of motor mounting rack are respectively arranged with second slide block suitable with above-mentioned line slideway.
4. a kind of entity structure concrete according to claim 1 is got powder equipment, it is characterized in that: described the second drive division comprises leading screw and is arranged on the rotating disc on leading screw top, the top of frame is installed with the nut suitable with leading screw, the top of frame also offers the through hole that can pass for leading screw, and leading screw is connected with the first drive division through after this through hole.
5. a kind of entity structure concrete according to claim 3 is got powder equipment, it is characterized in that: described adjustable height powder sample gatherer integral body is round end spade shape, it comprises the collection tube of collecting head and being connected with the first body of collection, collection tube is connected with collection head, and the bottom of collection tube offers powder spout.
6. a kind of entity structure concrete according to claim 5 is got powder equipment, it is characterized in that: described adjustable height powder sample gatherer is positioned at the rear of motor mounting rack, the top of motor mounting rack is provided with height arm control, this height arm control comprises the expansion sleeve being nested with outside collection tube and the degree of tightness adjusting part that the swelling degree of described expansion sleeve is regulated, this degree of tightness adjusting part comprises adjusting bolt, one end of adjusting bolt is connected with expansion sleeve, the other end is connected with the locating piece that is installed in motor mounting rack top, the outside of adjusting bolt is equipped with screw shell, on screw shell, cross-under has rotary handle.
7. according to a kind of entity structure concrete described in claim 3,5 or 6 any one claims, get powder equipment, it is characterized in that: the bottom of described motor mounting rack is provided with the limiting section that prevents that adjustable height powder sample gatherer from rocking, this limiting section comprises the mount pad that is installed in respectively both sides, motor mounting rack bottom, between two mount pads, be equipped with gag lever post, adjustable height powder sample gatherer is between gag lever post and motor mounting rack.
8. a kind of entity structure concrete according to claim 2 is got powder equipment, it is characterized in that: the outside of described left and right support is respectively arranged with the limit assembly that prevents that drill bit from moving left and right, limit assembly comprises and is nested with at the ratchet of gear shaft terminal and is arranged on respectively on left and right support and the rotation of each ratchet is played to the card article of inhibition, between card article and left and right support, be provided with the spring for card article is locked, between ratchet and gear shaft for key is connected, the ratchet of two ratchets towards the opposite.
9. a kind of entity structure concrete according to claim 3 is got powder equipment, it is characterized in that: described frame comprises top board and the left and right back up pad being connected with both sides, top board bottom respectively, above-mentioned line slideway has two, it is arranged on respectively the relative position place of left and right back up pad inner side, the front end of left support plate is fixed with the riser concordant with the front end face of motor mounting rack, the top of riser is provided with top-down rule, and the left side top of motor mounting rack is provided with pointer.
10. a kind of entity structure concrete according to claim 3 is got powder equipment, it is characterized in that: a side of described frame is provided with blower fan and the controller for described blower fan and motor are controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185169.9A CN103954475B (en) | 2014-05-04 | 2014-05-04 | Powder equipment got by a kind of entity structure concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185169.9A CN103954475B (en) | 2014-05-04 | 2014-05-04 | Powder equipment got by a kind of entity structure concrete |
Publications (2)
| Publication Number | Publication Date |
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| CN103954475A true CN103954475A (en) | 2014-07-30 |
| CN103954475B CN103954475B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410185169.9A Expired - Fee Related CN103954475B (en) | 2014-05-04 | 2014-05-04 | Powder equipment got by a kind of entity structure concrete |
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| CN108225870A (en) * | 2018-04-23 | 2018-06-29 | 郑州大学 | A kind of milling device for concrete |
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| CN109580274A (en) * | 2018-11-26 | 2019-04-05 | 中山市德丰科技服务有限公司 | Drilling device for geological survey |
| CN111208158A (en) * | 2019-09-06 | 2020-05-29 | 山东大学 | TBM (tunnel boring machine) carrying type rock quartz content measuring system and method thereof |
| CN113281102A (en) * | 2021-03-31 | 2021-08-20 | 陆玉明 | A get whitewashed device for coal mine tunnel geology |
| CN115290383A (en) * | 2022-10-09 | 2022-11-04 | 蓝天众成环保工程有限公司 | Environmental protection engineering is with detecting soil sampling device |
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| CN109580274A (en) * | 2018-11-26 | 2019-04-05 | 中山市德丰科技服务有限公司 | Drilling device for geological survey |
| CN109387415A (en) * | 2018-12-26 | 2019-02-26 | 山东华鉴工程检测有限公司 | A kind of chloride ion content test positioning sampling and device for fast detecting |
| CN109387415B (en) * | 2018-12-26 | 2024-01-23 | 山东华鉴工程检测有限公司 | Positioning sampling and rapid detection device for chlorine ion content test |
| CN111208158A (en) * | 2019-09-06 | 2020-05-29 | 山东大学 | TBM (tunnel boring machine) carrying type rock quartz content measuring system and method thereof |
| CN113281102A (en) * | 2021-03-31 | 2021-08-20 | 陆玉明 | A get whitewashed device for coal mine tunnel geology |
| CN115290383A (en) * | 2022-10-09 | 2022-11-04 | 蓝天众成环保工程有限公司 | Environmental protection engineering is with detecting soil sampling device |
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