CN110454094A - A kind of drill bit detaching structure of concrete sampler - Google Patents
A kind of drill bit detaching structure of concrete sampler Download PDFInfo
- Publication number
- CN110454094A CN110454094A CN201910809881.4A CN201910809881A CN110454094A CN 110454094 A CN110454094 A CN 110454094A CN 201910809881 A CN201910809881 A CN 201910809881A CN 110454094 A CN110454094 A CN 110454094A
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- 238000005553 drilling Methods 0.000 claims abstract description 58
- 238000003032 molecular docking Methods 0.000 claims abstract description 21
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 210000002421 cell wall Anatomy 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000010358 mechanical oscillation Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/043—Threaded with locking means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Geology (AREA)
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- Mining & Mineral Resources (AREA)
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- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to experiment core-taking technology fields, disclose a kind of drill bit detaching structure of concrete sampler.The drill bit detaching structure of concrete sampler includes drilling rod, drill bit, two locking assemblies one and locking assembly two.Locking assembly two includes semi-ring one, semi-ring two and two fixture block, and semi-ring one is set in the outside of drilling rod after docking with semi-ring two.Two fixture blocks are oppositely arranged on the phase of semi-ring one and semi-ring two inwardly respectively.Each fixture block can be penetrated in corresponding locating slot and is engaged by clamping with corresponding annular slot.The drill bit detaching structure of concrete sampler of the invention, it is relatively fixed to being carried out between drilling rod and drill bit by locking assembly one and locking assembly two, so that can not only be carried out by screw thread between drilling rod and drill bit tentatively fixed, the clamping engagement between fixture block and annular slot can also be passed through, it is further fixed so that being realized between drilling rod and drill bit, effectively improves the connectivity robustness between drilling rod and drill bit.
Description
Technical field
The present invention relates to experiment core-taking technology field more particularly to a kind of drill bit detaching structures of concrete sampler.
Background technique
Because concrete drill hole sampler is when carrying out bore operation in face of hard rock or concrete, drill bit can often be ground
Damage is until damage, therefore drill bit need to be regularly replaced more.It is connected between existing drill bit and drilling rod not enough securely, between the two usually
It is only by threaded connection, so that being easy to be influenced by mechanical oscillation and opposite fall off occurs between the two.And drilling rod is general
Property it is poor, can not be adapted to the drill bit of different thicknesses connection and the concrete drill hole sampler in the location of the coring procedure to stratum
In must water flowing, threaded connection place between drill bit and drilling rod is easy corrosion bonding, causes to dismantle between drill bit and drilling rod difficult.
Summary of the invention
A kind of drill bit detaching structure of concrete sampler comprising:
Drilling rod, the drilling rod open up slot close to one end of the drill bit；Institute of the slot far from the drill bit side
It states and coaxially opens up locating slot in drilling rod；
The drill bit being adapted to drill rod thread, the drill bit include bar portion and card-tight part, are distributed on the peripheral side of the bar portion
There is external screw thread；The card-tight part is co-axially located at the top of the bar portion, and the card-tight part can extend into the locating slot
And the relative rotation in the locating slot；Annular slot is opened up on the card-tight part；
Two locking assemblies one, each locking assembly one include tie down screw, clamping plate and two limit telescopic bars, institute
Clamping plate is stated to be housed in the slot；The interior spiral shell matched with the external screw thread is arranged close to the side of the drill bit for the clamping plate
Line；The bar portion screw thread of the tie down screw runs through the lateral wall of the drilling rod, and protrude into the slot with the corresponding folder
The side of plate is rotatablely connected；By screwing the tie down screw, make the clamping plate close to or far from the drill bit；Two limits
Position telescopic rod is opposite to be arranged in parallel between the slot and the clamping plate；And locking assembly two comprising semi-ring one, semi-ring
Two and two fixture blocks, the semi-ring one are set in the outside of the drilling rod after docking with the semi-ring two；Two fixture blocks point
It is not oppositely arranged on the phase of semi-ring one and semi-ring two inwardly；Each fixture block can penetrate in the corresponding locating slot with
The corresponding annular slot is engaged by clamping.
Further, it is connected between the card-tight part and the locating slot for clearance fit.
Further, the two sides of the locating slot vertically open up two opposite through slots；And each through slot with it is corresponding
The fixture block between it is mating.
Further, each locking assembly one further includes two limit telescopic bars and axle bed, and the axle bed setting exists
On the corresponding clamping plate, the inside of the axle bed is equipped with bearing, the bar portion of the inner ring of the bearing and the tie down screw
It is fixedly connected.
Further, elastic component is oppositely arranged between the inner wall of the slot and the corresponding clamping plate.
Further, the elastic component is spring, and the spring is circumferentially positioned at the peripheral side of the limit telescopic bar,
The both ends of the spring are connected with the inner wall of the corresponding slot and the Boards wall respectively.
Further, the elastic component be elastic force block, the both ends of the elastic force block respectively with the inner wall of the slot and
The corresponding Boards wall connection.
Further, the both ends of the semi-ring one open up docking groove；The both ends of the semi-ring two be respectively provided with it is described right
The docking block that access slot is engaged by clamping.
Further, the equal semicircular in shape structure in section of the docking block and docking groove.
Further, link block one is provided on the outside of one both ends of semi-ring；The outside at two both ends of semi-ring is equal
It is provided with link block two；It is fixedly connected between the adjacent link block one and link block two by screw.
The invention has the benefit that
1. the drill bit detaching structure of concrete sampler of the invention, by locking assembly one and locking assembly two to drilling rod
Carried out between drill bit it is relatively fixed so that can not only be carried out by screw thread between drilling rod and drill bit it is tentatively fixed, can be with
By the clamping engagement between fixture block and annular slot so that between drilling rod and drill bit realize further fix, avoid drilling rod with
It is influenced between drill bit by mechanical oscillation and occurs to fall off relatively, effectively improve the connectivity robustness between drilling rod and drill bit.
2. in locking assembly one of the invention, the distance between two clamping plates be can it is different according to the specification of drill bit and into
Row is corresponding to be adjusted, and to meet the connection of the adaptation between the drilling rod drill bit different from thickness, improves being adapted between drilling rod and drill bit
Property and versatility.
It, only need to be by turning when drill bit needs to dismantle 3. the drill bit detaching structure of concrete sampler of the invention
Tie down screw, so that two clamping plate relative separations from drill bit, so that it may make drill bit carry out removal from drilling rod, avoid drill bit and bore
Corrosion between bar because of threaded connection place bonds, and there is a situation where disassembly difficulties.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the drill bit detaching structure of concrete sampler provided in an embodiment of the present invention；
Fig. 2 is the enlarged structure schematic diagram at the A in Fig. 1；
Fig. 3 is the overlooking structure diagram of the part in Fig. 1.
Primary symbols explanation:
10, drilling rod；11, slot；12, locating slot；13, through slot；20, drill bit；21, bar portion；22, card-tight part；221, annular
Card slot；30, component is adjusted；31, tie down screw；32, clamping plate；321, internal screw thread；33, limit telescopic bar；34, axle bed；40, clamping
Component；41, semi-ring one；411, docking groove；42, semi-ring two；421, block is docked；43, fixture block；44, link block one；45, link block
Two.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Incorporated by reference to Fig. 1, the drill bit detaching structure of concrete sampler includes 20, two drilling rod 10, drill bit locking assemblies one
30 and locking assembly 2 40.
Drilling rod 10 is the whole cylindrical body in long shaft-like, and one end close to the drill bit 20 of drilling rod 10 opens up slot 11.
Slot 11 is the groove body that section is rectangle, and slot 11 can also be the square groove body in section in other embodiments, only
Otherwise the suitability between slot 11 and drill bit 20 is influenced, can also be other trough body structures.
Slot 11 coaxially opens up locating slot 12 in the drilling rod 10 far from 20 side of drill bit.Locating slot 12 is whole
In the groove body of rectangle, locating slot 12 is communicated with slot 11 in the present embodiment, and the notch length of locating slot 12 is less than slot 11
Notch length, so that being presented by the cell wall of slot 11 to locating slot 12 ladder-like.The two sides of locating slot 12 vertically open up two phases
Pair through slot 13.Whole through slot 13 is in horizontal rectangle groove body, can be connected to the outside of locating slot 12 Yu drilling rod 10, the present embodiment
In height of two through slots 13 on locating slot 12 it is equal.
Drill bit 20 can be connect with 10 threaded adapter of drilling rod.Drill bit 20 includes bar portion 21 and card-tight part 22.
Bar portion 21 is the whole short axle body for being vertically arranged and be in rectangle, and the head of bar portion 21 is in flat mouth Openworks shape in the present embodiment.
The diameter length of bar portion 21 is less than the Opening length of slot 11, then the top of bar portion 21 can be inserted in slot 11.Bar portion 21
External screw thread (not shown) is distributed on peripheral side, the external screw thread in the present embodiment in bar portion 21 can use stainless steel material system
At to improve externally threaded service life.
Card-tight part 22 is whole block cylindrical, and card-tight part 22 is co-axially located at the top of the bar portion 21, this reality
It applies in example and is connected by screw between card-tight part 22 and bar portion 21, facilitate staff to the peace between card-tight part 22 and bar portion 21
Assembly and disassembly can also be that integrated punching forms in other embodiments, be conducive to raising two between card-tight part 22 and bar portion 21
Stability between person can be with as long as not influencing the connective stability and motion synchronicity between card-tight part 22 and bar portion 21
It is other connection types.
Card-tight part 22 can extend into the locating slot 12 and the relative rotation in the locating slot 12, blocks in the present embodiment
It is gap-matched connection between tight portion 22 and locating slot 12, then card-tight part 22, can be in locating slot 12 under by the driving of external force
Interior rotation.
Annular slot 221 is opened up on card-tight part 22, annular slot 221 is the groove body of the whole annular in a continuous circle.In
Annular slot 221 can also be discontinuous arc groove body in other embodiments, as long as not influencing between card slot 221 and fixture block 43
Suitability, can also be other trough body structures.
Incorporated by reference to Fig. 1 and Fig. 2, two locking assemblies 1 are oppositely arranged on 10 two sides of drilling rod outside slot 11, each
The locking assembly 1 includes tie down screw 31,32, two limit telescopic bars 33 of clamping plate and axle bed 34.
Tie down screw 31 is the common screw with head and bar portion.The bar portion screw thread of tie down screw 31 runs through the drilling rod
10 lateral wall simultaneously protrudes into the slot 11.Two are opened up on the side wall of drilling rod 10 in the present embodiment to pass through for tie down screw 31
Threaded hole (not indicating), and be threadedly coupled between the bar portion of tie down screw 31 and corresponding threaded hole.
Clamping plate 32 is whole arc-shaped plate body, and clamping plate 32 is housed in the slot 11.Due to the present embodiment middle clamp plate
32 quantity is two, and the insert port (not indicating) being inserted into for drill bit 20 is formd between two clamping plates 32.Clamping plate 32 is close to institute
The internal screw thread (not shown) that matches with the external screw thread is arranged in the side for stating drill bit 20, allows clamping plate 32 and drill bit 20
Bar portion 21 is threadedly engaged, and the internal screw thread on the present embodiment middle clamp plate 32 can be made of stainless steel, to improve internal screw thread
Service life.
The side of the present embodiment middle clamp plate 32 and the end of 31 bar portion of tie down screw protruded into slot 11 are rotatablely connected, and
It is rotatablely connected between the end and clamping plate 32 of 31 bar portion of tie down screw.By screwing the tie down screw 31, make the clamping plate 32
Close to or far from the drill bit 20.
Two limit telescopic bars 33 are opposite to be arranged in parallel between the slot 11 and the clamping plate 32.It is limited in the present embodiment
Position telescopic rod 33 is common telescopic rod, and two limit telescopic bars 33 in each locking assembly 1 are right about tie down screw 31
Claim.
Elastic component is set between the inner wall of slot 11 and the corresponding clamping plate 32, what elastic component can be subject to clamping plate 32
Pressure is buffered, and avoiding drill bit 20, stress is excessive and be damaged in use.
In the present embodiment, elastic component is spring (not indicating), and the spring is circumferentially positioned at the limit telescopic bar 33
Peripheral side, the number of springs being arranged between each clamping plate 32 and the cell wall of corresponding slot 11 are two.Each spring
Both ends are fixedly connected with the inner wall of the corresponding slot 11 and the clamping plate 32 respectively, the both ends difference of spring in the present embodiment
It is welded and fixed between the inner wall and the clamping plate 32 of the corresponding slot 11.
Elastic component is elastic force block in other embodiments, and elastic force block can be the metal clips with some strength.This reality
Applying the elastic force number of blocks being arranged between each clamping plate 32 of example and the cell wall of corresponding slot 11 is two.The both ends of each elastic force block
It is fixedly connected respectively with the inner wall of the slot 11 and the corresponding clamping plate 32, the cell wall of elastic force block and clamping plate 32 and slot 11
Between can be connected by screw to, facilitate the installation and removal of staff.
Axle bed 34 is arranged on the corresponding clamping plate 32, and the inside of the axle bed 34 is equipped with bearing, the bearing
Inner ring is fixedly connected with the bar portion of the tie down screw 31.It is connected by screw between the present embodiment central axis seat 34 and clamping plate 32,
It is connected by key between the end of 31 bar portion of inner ring and tie down screw of bearing.
The working method of locking assembly 1 as a result, are as follows: first synchronize the tie down screw 31 for turning 10 two sides of drilling rod, make slot
Two clamping plates 32 in 11 move toward one another under the position-limiting action of respective limit telescopic bar 33, by measuring drill bit 20 to be installed
Diameter length, by adjusting to respective distances between two clamping plates 32, make between two clamping plates 32 formed bar portion 21 spiral
Insert port, then the bar portion 21 of drill bit 20 to be installed is directed at screw thread insert port and is screwed in, so that the external screw thread in bar portion 21
Mutually be engaged with the internal screw thread on clamping plate 32, until card-tight part 22 completely into the locating slot 12 and position of locating slot 12 just
With the position flush relative of through slot 13, stops the rotation of drill bit 20, drill bit 20 can be completed and assembled on drilling rod 10.
Incorporated by reference to Fig. 1 and Fig. 3, locking assembly 2 40 includes semi-ring 1, semi-ring 2 42 and two fixture blocks 43.
The ring body of the whole semicircular in shape of semi-ring 1, the ring body of the whole semicircular in shape of semi-ring 2 42.Semi-ring 1 with it is described
Semi-ring 2 42 is set in the outside of the drilling rod 10 after docking.Docked between semi-ring 1 and semi-ring 2 42 can be formed one it is complete
Whole annulus, the annulus can be tightly sleeved in the outside of drilling rod 10.
The both ends of semi-ring 1 open up docking groove 411；The both ends of the semi-ring 2 42 are respectively provided with and the docking groove 411
The docking block 421 of clamping engagement.The equal semicircular in shape structure in section of docking groove 411 and docking block 421 in the present embodiment, so that right
It perfect can be connected between access slot 411 and docking block 421, facilitate semi-ring 1 and partly change the quick assembling between 2 42.
Link block 1, the company of being provided on the outside of 2 42 both ends of semi-ring are provided on the outside of one 41 both ends of semi-ring
Connect block 2 45.Link block 1 and link block 2 45 are all the whole blocks in rectangle, link block 1 and half in the present embodiment
By being welded and fixed between ring 1, by being welded and fixed between link block 2 45 and semi-ring 2 42.The adjacent link block
It is fixedly connected between one 44 and link block 2 45 by screw, staff is facilitated to change 2 42 quick peace to semi-ring 1 and partly
Dress and disassembly.
Two fixture blocks 43 are oppositely arranged on the phase of semi-ring 1 and semi-ring 2 42 inwardly respectively.Fixture block 43 can be entirety
Block cylindrical, fixture block 43 can be the whole block in square column type in other embodiments, as long as not influencing fixture block 43
With the conformability between through slot 13 and annular slot 221, it can also be other block structures.The length of fixture block 43 is greater than through slot 13
Groove body length, and fixture block 43 can in through slot 13.
Each fixture block 43 is arranged at the middle part of 2 42 inside of corresponding semi-ring 1 or semi-ring, and semi-ring one in the present embodiment
By being welded and fixed between 41 and semi-ring 2 42 and corresponding fixture block 43.Each fixture block 43 can penetrate corresponding described fixed
It is engaged by clamping in the slot 12 of position with the corresponding annular slot 221, is connected by the engaging between fixture block 43 and annular slot 221
Connect, can fixation of the card-tight part 22 in locating slot 12 to drill bit 20, realize further solid between drilling rod 10 and drill bit 20
It is fixed, improve the connective stability of drilling rod 10 and drill bit 20.
The working method of locking assembly 2 40 as a result, are as follows: after the completion of the preliminary fixation of one 30 pairs of drill bits 20 of locking assembly,
Semi-ring 1 and semi-ring 2 42 are first affixed to the two sides of drilling rod 10 respectively, distinguish the fixture block 43 on semi-ring 1 and semi-ring 2 42
After being inserted into corresponding through slot 13, so that fixture block 43 is inserted into the annular slot 221 of card-tight part 22, to realize the limit to card-tight part 22
Then position will be docked between semi-ring 1 and semi-ring 2 42 by docking groove 411 and docking block 421, finally utilize screw
It is fixed between adjacent link block 1 and link block 2 45, then drill bit 20 is completed with drilling rod 10.
In the present embodiment when staff needs to dismantle drill bit 20 from drilling rod 10, it is only necessary to according to above-mentioned locking group
The working method of part 1 and locking assembly 2 40 carries out opposite operation, it is worth mentioning at this point that, when dismantling bar portion 21,
It only need to be by turning tie down screw 31, so that two clamping plates 32 are from relative separation on drill bit 20, until not contacting with bar portion 21, just
Drill bit 20 can be removed from drilling rod 10, it is convenient and practical.It is bonded if the threaded connection place of drilling rod 10 and drill bit 20 is corroded, also not
It will affect the separation between clamping plate 32 and drill bit 20, avoid the disassembly between drill bit 20 and drilling rod 10 difficult.
In conclusion being had the advantage that in the present embodiment
1. the drill bit detaching structure of the concrete sampler of the present embodiment is bored by locking assembly one and two pairs of locking assembly
It carries out relatively fixed between bar and drill bit, so that can not only be carried out by screw thread tentatively fixed between drilling rod and drill bit, may be used also
To be further fixed so that being realized between drilling rod and drill bit, avoid drilling rod by the clamping engagement between fixture block and annular slot
It is influenced between drill bit by mechanical oscillation and occurs to fall off relatively, effectively improve the connectivity robustness between drilling rod and drill bit.
2. in the locking assembly one of the present embodiment, the distance between two clamping plates be can it is different according to the specification of drill bit and
Corresponding adjusting is carried out, to meet the connection of the adaptation between the drilling rod drill bit different from thickness, is improved suitable between drilling rod and drill bit
With property and versatility.
It, only need to be by twisting when drill bit needs to dismantle 3. the drill bit detaching structure of the concrete sampler of the present embodiment
Dynamic tie down screw, so that two clamping plate relative separations from drill bit, so that it may so that drill bit is carried out removal from drilling rod, avoid drill bit with
Corrosion between drilling rod because of threaded connection place bonds, and there is a situation where disassembly difficulties.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of drill bit detaching structure of concrete sampler comprising:
Drilling rod；And
The drill bit being adapted to drill rod thread；
It is characterized in that, the drilling rod opens up slot close to one end of the drill bit；The slot is far from the drill bit side
Locating slot is coaxially opened up in the drilling rod；The drill bit includes bar portion and card-tight part, is distributed on the peripheral side of the bar portion outer
Screw thread；The card-tight part is co-axially located at the top of the bar portion, and the card-tight part can extend into the locating slot and
Relative rotation in the locating slot；Annular slot is opened up on the card-tight part；
The drill bit detaching structure further include:
Two locking assemblies one, each locking assembly one include tie down screw, clamping plate and two limit telescopic bars, the folder
Plate is housed in the slot；The internal screw thread matched with the external screw thread is arranged close to the side of the drill bit for the clamping plate；
The bar portion screw thread of the tie down screw runs through the lateral wall of the drilling rod, and protrude into the slot with the corresponding clamping plate
Side rotation connection；By screwing the tie down screw, make the clamping plate close to or far from the drill bit；Two limits are stretched
Contracting bar is opposite to be arranged in parallel between the slot and the clamping plate；And
Locking assembly two comprising semi-ring one, semi-ring two and two fixture block, the semi-ring one are arranged after docking with the semi-ring two
In the outside of the drilling rod；Two fixture blocks are oppositely arranged on the phase of semi-ring one and semi-ring two inwardly respectively；It is each described
Fixture block can be penetrated in the corresponding locating slot and is engaged by clamping with the corresponding annular slot.
2. the drill bit detaching structure of concrete sampler as described in claim 1, which is characterized in that the card-tight part with it is described
It is connected between locating slot for clearance fit.
3. the drill bit detaching structure of concrete sampler as described in claim 1, which is characterized in that the two sides of the locating slot
Vertically open up two opposite through slots；And it is mating between each through slot and the corresponding fixture block.
4. the drill bit detaching structure of concrete sampler as described in claim 1, which is characterized in that each locking assembly
One further includes two limit telescopic bars and axle bed, and the axle bed is arranged on the corresponding clamping plate, and the inside of the axle bed is pacified
Equipped with bearing, the inner ring of the bearing is fixedly connected with the bar portion of the tie down screw.
5. the drill bit detaching structure of concrete sampler as described in claim 1, which is characterized in that the inner wall of the slot with
Elastic component is oppositely arranged between the corresponding clamping plate.
6. the drill bit detaching structure of concrete sampler as claimed in claim 5, which is characterized in that the elastic component is bullet
Spring, the spring are circumferentially positioned at the peripheral side of the limit telescopic bar, and the both ends of the spring described are inserted with corresponding respectively
The inner wall of slot is connected with the Boards wall.
7. the drill bit detaching structure of concrete sampler as claimed in claim 5, which is characterized in that the elastic component is elastic force
Block, the both ends of the elastic force block are connected with the inner wall of the slot and the corresponding Boards wall respectively.
8. the drill bit detaching structure of concrete sampler as described in claim 1, which is characterized in that the both ends of the semi-ring one
Open up docking groove；The both ends of the semi-ring two, which are respectively provided with, docks block with what the docking groove was engaged by clamping.
9. the drill bit detaching structure of concrete sampler as claimed in claim 8, which is characterized in that the docking block and docking
The equal semicircular in shape structure in the section of slot.
10. the drill bit detaching structure of concrete sampler as described in claim 1, which is characterized in that one both ends of semi-ring
Outside be provided with link block one；Link block two is provided on the outside of two both ends of semi-ring；The adjacent link block
It is fixedly connected between one and link block two by screw.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910809881.4A CN110454094A (en) | 2019-08-29 | 2019-08-29 | A kind of drill bit detaching structure of concrete sampler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910809881.4A CN110454094A (en) | 2019-08-29 | 2019-08-29 | A kind of drill bit detaching structure of concrete sampler |
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| CN111993103A (en) * | 2020-08-21 | 2020-11-27 | 谢琼玲 | Detachable drill bit type drilling machine |
| CN112324367A (en) * | 2020-11-10 | 2021-02-05 | 湖南创远矿山机械有限责任公司 | Drill rod disassembling method |
| CN112647861A (en) * | 2020-12-24 | 2021-04-13 | 江苏拓海煤矿钻探机械有限公司 | Coal mine drill rod capable of being rapidly assembled and disassembled |
| CN112727348A (en) * | 2021-01-26 | 2021-04-30 | 沧州格锐特钻头有限公司 | Multi-section drilling screw drilling tool |
| CN112901087A (en) * | 2021-01-28 | 2021-06-04 | 李宛芸 | Petroleum drill pipe |
| CN117449758A (en) * | 2023-12-21 | 2024-01-26 | 山西建筑工程集团有限公司 | Concrete pile bores and digs device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289287A (en) * | 2020-03-03 | 2020-06-16 | 云南省林业和草原科学院 | Soil sampling device |
| CN111289287B (en) * | 2020-03-03 | 2022-09-30 | 云南省林业和草原科学院 | Soil sampling device |
| CN111993103A (en) * | 2020-08-21 | 2020-11-27 | 谢琼玲 | Detachable drill bit type drilling machine |
| CN112324367A (en) * | 2020-11-10 | 2021-02-05 | 湖南创远矿山机械有限责任公司 | Drill rod disassembling method |
| CN112647861A (en) * | 2020-12-24 | 2021-04-13 | 江苏拓海煤矿钻探机械有限公司 | Coal mine drill rod capable of being rapidly assembled and disassembled |
| CN112727348A (en) * | 2021-01-26 | 2021-04-30 | 沧州格锐特钻头有限公司 | Multi-section drilling screw drilling tool |
| CN112901087A (en) * | 2021-01-28 | 2021-06-04 | 李宛芸 | Petroleum drill pipe |
| CN112901087B (en) * | 2021-01-28 | 2023-08-25 | 延长永通石油技术服务有限责任公司 | Petroleum drill pipe |
| CN117449758A (en) * | 2023-12-21 | 2024-01-26 | 山西建筑工程集团有限公司 | Concrete pile bores and digs device |
| CN117449758B (en) * | 2023-12-21 | 2024-03-08 | 山西建筑工程集团有限公司 | Concrete pile bores and digs device |
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