CN205577858U - Down --hole drill bit - Google Patents
Down --hole drill bit Download PDFInfo
- Publication number
- CN205577858U CN205577858U CN201620367204.3U CN201620367204U CN205577858U CN 205577858 U CN205577858 U CN 205577858U CN 201620367204 U CN201620367204 U CN 201620367204U CN 205577858 U CN205577858 U CN 205577858U
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- drill bit
- hold drill
- osculum
- bit body
- screen plate
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Abstract
The utility model discloses a down - -hole drill bit, including the down - -hole drill bit body, be provided with the connecting hole that is used for connecting the down - -hole drill bit machine in the down - -hole drill bit body one end, the other end is provided with the wash port that is used for for the cooling of down - -hole drill bit body, the wash port communicates with each other with the connecting hole, be provided with the filter equipment who prevents the wash port and blockked up by the rubble in the wash port, the last water supply exhaust that is provided with of filter equipment goes out the water pore, and its technical scheme main points are provided with filter equipment in the wash port, and messenger filter equipment can be with the separation of rubble granule in the wash port outside to the effectual wash port of having avoided is blockked up by the rubble granule, then be provided with out the water pore on filter equipment for the above -mentioned setting is synthesized to the effect that the down - -hole drill bit body is in time lowered the temperature, when having reached the down - -hole drill bit body and can in time lower the temperature, can also prevent that the rubble granule from stopping up the wash port.
Description
Technical field
This utility model relates to a kind of cutter, more specifically, it relates to a kind of down-the-hold drill bit.
Background technology
Down-the-hold drill bit plays an important role in extractive industry, down-the-hold drill bit is mainly made up of drill main body and alloy blade, alloy blade device is in the position for drilling rock end of drill main body, and drill main body operationally, carries out drilling by alloy blade to rock.
nullThe Chinese patent of existing Publication No. CN202954743U，By utilizing high pressure draught to carry out auxiliary rock，Although improve the efficiency of boring，But due to down-the-hold drill bit running up in rock，Make awfully hot by rock frictional test of down-the-hold drill bit，It is easily damaged alloy blade，Due to down-the-hold drill bit in the course of the work，There is no a kind of device down-the-hold drill bit can lowered the temperature，So my department is provided for the osculum that water is discharged on the drill main body of down-the-hold drill bit，See figures.1.and.2，On drill main body 2, the one end away from osculum 12 is provided with the connecting hole 11 connecting down-the-hold drill bit machine，And make connecting hole 11 be connected with osculum 12，By being provided with drainage pipeline in down-the-hold drill bit machine，Make the water in drainage pipeline can pass through osculum 12 row at alloy blade 18，Make alloy blade 18 when drilling rock，Play the effect that can lower the temperature in time.
Down-the-hold drill bit is during actual drilling rockwork, owing to the heat of down-the-hold drill bit can be by the heat transfer process of water, down-the-hold drill bit can be made to be lowered the temperature the most timely, but owing to the drilled gravel particle cut out would generally enter in osculum 12, long-term accumulation will cause osculum 12 to block, make down-the-hold drill bit can not obtain lasting cooling in follow-up drilling process, in order to prevent osculum 12 blocked, the temperature of down-the-hold drill bit is raised again, need just can be reused by the osculum 12 on cleaning down-the-hold drill bit, reduce the efficiency of work.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of down-the-hold drill bit preventing gravel particle blocking osculum.
For achieving the above object, this utility model provides following technical scheme:
A kind of down-the-hold drill bit, including down-the-hold drill bit body, it is provided with the connecting hole for connecting down-the-hold drill bit machine in described down-the-hold drill bit body one end, the other end is provided with the osculum for lowering the temperature to down-the-hold drill bit body, described osculum communicates with connecting hole, it is provided with the defecator preventing osculum from being blocked by rubble in described osculum, described defecator is provided with the water outlet pore discharged that supplies water.
By using technique scheme, owing to down-the-hold drill bit body is in practical work process, the gravel particle that osculum is often gone out by down-the-hold drill bit body drilling blocks, in order to avoid osculum is blocked by gravel particle, by being provided with defecator in osculum, defecator is enable to be intercepted outside osculum by gravel particle, thus effectively avoid osculum and blocked by gravel particle, then on defecator, it is provided with water outlet pore, water outlet pore can make the water in down-the-hold drill bit machine flow to down-the-hold drill bit body exterior through water outlet pore, make the effect that down-the-hold drill bit body is lowered the temperature in time, summary is arranged, thus while effectively making down-the-hold drill bit body reach to lower the temperature in time, it is prevented from the effect of gravel particle blocking osculum.
Preferably, described water outlet pore is tapered structure, the width of described water outlet pore from down-the-hold drill bit this most internal to be gradually reduced.
nullBy using technique scheme，When down-the-hold drill bit body drilling rock，If the water water velocity flowing through water outlet pore is not quickly，Water then can be caused not arrive at alloy blade，The most flowed through the boiling the hottest of the position heat transfer of down-the-hold drill bit body，Make water the most undesirable to alloy blade cooling effect，In order to enable water to quickly arrive at alloy blade，By water outlet pore is made tapered structure，Water outlet pore is made to be positioned at the intrinsic aperture of down-the-hold drill bit the widest，Water outlet pore then can incorporate more water，The aperture outside in down-the-hold drill bit body of water outlet pore is gradually reduced，Make the water entering water outlet pore through tapered water outlet pore，Make to flow out from water outlet pore with the same time than more water before，Thus water outlet pore has the effect of acceleration to water，Water at a high speed is enable to arrive alloy blade with the fastest speed，Thus alloy blade is played good cooling effect.
Preferably, described defecator includes screen plate, and described screen plate is globoidal structure away from the surface of down-the-hold drill bit machine.
By using technique scheme, owing to flowing through the water of water outlet pore, it is all to be parallel to the injection of down-the-hold drill bit body axial direction, alloy cutter is mostly merely able to touch the water spattered by high velocity jet and is cooled down, in order to enable the water from the injection of water outlet pore to be directly injected to alloy cutter, defecator uses screen plate, then screen plate becomes globoidal structure away from the surface configuration of down-the-hold drill bit machine, the axial line making the water outlet pore being positioned on screen plate is divergent shape, thus each alloy blade being ejected into down-the-hold drill bit body dissipated from the water of water outlet pore injection, effectively the water that water outlet pore penetrates is emitted directly toward alloy cutter.
Preferably, described screen plate is dismountable with osculum medial wall is connected.
nullBy using technique scheme，Down-the-hold drill bit body and screen plate are often clashed into by the gravel particle gone out due to down-the-hold drill bit body drilling，It is all closed body structure owing to clashing into the position of down-the-hold drill bit body，So the abrasion produced relatively can be smaller，And on screen plate, have a lot of filtering holes，So screen plate meeting relative wear is very fast，If down-the-hold drill bit body uses non-removable connection with screen plate，When screen plate is damaged by long term wear，Screen plate can not be changed in time，Then down-the-hold drill bit body working (machining) efficiency reduces，Even down-the-hold drill bit body is directly replaced，Thus cost can be the highest，In order to reduce drilling cost，By screen plate is removably attachable on osculum medial wall，When having served as spoiled filter plate，Can be changed in time，Thus avoid working (machining) efficiency to reduce，Even using down-the-hold drill bit body as scrapping process，Significantly reduce drilling cost.
Preferably, described screen plate lateral wall is provided with elastic component, and described screen plate is connected with osculum medial wall by elastic component.
By using technique scheme, in order to realize, screen plate is dismountable with osculum medial wall to be connected, by being provided with elastic component between screen plate and osculum medial wall, by the elastic return of elastic component, when making screen plate be connected with osculum medial wall, screen plate card can be embedded on osculum medial wall, when screen plate is dismantled, by the elastic deformation of elastic component, make elastic component slide out from the junction of osculum medial wall, thus realize removably connecting of screen plate and osculum medial wall.
Preferably, described elastic component is the ring-shaped rubber with triangular-section, and described ring-shaped rubber bottom surface is fixing with screen plate lateral wall to be connected, and osculum medial wall is provided with the V-type groove coordinated with ring-shaped rubber.
nullBy using technique scheme，In order to enable elastic component to be connected dismountable with osculum medial wall for screen plate，Elastic component uses the ring-shaped rubber with triangular-section，Due to the water of injection in water outlet pore，The pressure that the outer direction of meeting down-the-hold drill bit body oriented to screen plate ejects，In order to prevent water from being ejected by screen plate，Ring-shaped rubber bottom surface is fixing with screen plate lateral wall to be connected，In order to enable screen plate to dismantle from osculum medial wall，The cross section of ring-shaped rubber is triangle，Owing to ring-shaped rubber bottom surface is connected with screen plate，So the structure that ring-shaped rubber is connected with osculum medial wall is V-type，So being provided with V-type groove in osculum medial wall，When screen plate is dismantled，By toward being parallel to osculum direction pressing screen plate，Make the ring-shaped rubber of V-structure to the direction sliding of down-the-hold drill bit body interior in V-type groove，During ring-shaped rubber slides in V-type groove，Ring-shaped rubber can produce elastic deformation，Ring-shaped rubber is departed from V-type groove，Then screen plate enters connecting hole，Filter in connecting hole is taken out，Thus reach the effect that ring-shaped rubber can be dismantled in osculum medial wall.
Preferably, described elastic component includes that compression spring and the steel ball being arranged in compression spring, described screen plate lateral wall concave the groove of stepping down trapped out for placing compression spring, and described osculum medial wall concaves the bulbous recess coordinated with steel ball that traps out.
nullBy using technique scheme，The another kind of structure of elastic component is made up of compression spring and steel ball，Steel ball is arranged in compression spring，Screen plate lateral wall is provided with groove of stepping down，Step down groove for placing compression spring，Osculum medial wall is provided with the bulbous recess coordinated with steel ball，When screen plate is connected to osculum medial wall，Screen plate makes steel ball coordinate with bulbous recess by compression spring，So that screen plate is fixed in osculum medial wall，When screen plate needs dismounting，By toward being parallel to osculum direction pressing screen plate，Steel ball is made to roll in bulbous recess，In the rolling process of steel ball，Compression spring is made to be compressed，When steel ball departs from bulbous recess，Steel ball is compressed by osculum medial wall，Thus steel ball with compression spring completely into groove of stepping down，Then screen plate departs from from osculum，Screen plate enters the connecting hole communicated with osculum，Then screen plate is taken out，Thus reach the effect that screen plate can be dismantled in osculum medial wall.
Preferably, described down-the-hold drill bit body is provided with the chip area for making gravel particle discharge on the lateral wall, end of drilling.
By using technique scheme, down-the-hold drill bit body is when drilling rock, the gravel particle that drilling goes out tends not to quickly discharge between down-the-hold drill bit body and rock, gravel particle is typically only discharged by the gap between down-the-hold drill bit body and rock, if gravel particle is discharged not in time, the frictional force between down-the-hold drill bit body and rock can be made to increase, thus the temperature of down-the-hold drill bit body can rise rapidly, in order in time gravel particle be discharged from the gap between down-the-hold drill bit body and rock, by arranging chip area on down-the-hold drill bit outer body wall, chip area makes the gap between down-the-hold drill bit body and rock increase, and the discharge to gravel particle just has guide effect, reach to enable gravel particle in time from the effect discharged between down-the-hold drill bit body and rock.
Preferably, the transition between end and the chip area of drilling of described down-the-hold drill bit body is provided with the slide surface being easy in gravel particle entrance chip area.
By using technique scheme, during down-the-hold drill bit body drilling rock, the gravel particle that down-the-hold drill bit body drilling goes out tends not to enough enter chip area timely, but be compressed between down-the-hold drill bit body end and rock, in order to enable gravel particle to smoothly enter chip area, down-the-hold drill bit body is provided with slide surface, slide surface can transition connect down-the-hold drill bit body for the end of drilling and chip area, make the gravel particle being squeezed between down-the-hold drill bit body end and rock, chip area can be slipped at slide surface, thus reach gravel particle and can smoothly enter the effect in chip area.
Preferably, described osculum includes being positioned at the central row water hole of down-the-hold drill bit body end roof and being positioned at the side osculum of down-the-hold drill bit outer body wall.
By using technique scheme, when down-the-hold drill bit body drilling rock, not only down-the-hold drill bit body can temperature raise for the roof of drilling, rotation due to down-the-hold drill bit body, this body sidewall of down-the-hold drill bit also can make down-the-hold drill bit body temperature rise with the friction of rock, in order to down-the-hold drill bit body can be lowered the temperature uniformly, on the roof of drilling end, it is provided with central row water hole at down-the-hold drill bit body, the water enabling central row water hole to discharge reduces temperature produced by drilling rock, the side of down-the-hold drill bit body is provided with side osculum, the water enabling side osculum to discharge reduces when down-the-hold drill bit body rotates and temperature produced by rock frictional test, by above-mentioned setting, realize the effect that down-the-hold drill bit body can be lowered the temperature uniformly.
In sum, this utility model has the advantages that
1, when down-the-hold drill bit body is in drilling, down-the-hold drill bit body can not only reach the effect lowered the temperature in time, moreover it is possible to reaches to prevent the effect of gravel particle blocking osculum；
2, by being removably attachable to by screen plate on osculum medial wall, enable screen plate to be changed in time, thus avoid down-the-hold drill bit working (machining) efficiency to reduce, even using down-the-hold drill bit body as scrapping process, significantly reduce the cost of drilling；
3, on the lateral wall, end of drilling, be provided with chip area at down-the-hold drill bit body, thus realize gravel particle can be in time from the effect of discharge between down-the-hold drill bit body and rock.
Accompanying drawing explanation
Fig. 1 is prior art down-the-hold drill bit structural representation；
Fig. 2 is prior art down-the-hold drill bit sectional view；
Fig. 3 is embodiment one structural representation；
Fig. 4 is debris discharging chute structure schematic diagram in embodiment one；
Fig. 5 is embodiment one sectional view；
Fig. 6 is part A enlarged drawing in Fig. 5；
Fig. 7 is embodiment two structural representation；
Fig. 8 is part B enlarged drawing in Fig. 7.
In figure: 1, down-the-hold drill bit body；11, connecting hole；12, osculum；123, V-type groove；124, bulbous recess；121, central row water hole；122, side osculum；125, annular recess；13, screen plate；131, step down groove；131, water outlet pore；14, ring-shaped rubber；141, ring-type projection；15, compression spring；151, steel ball；16, chip area；17, slide surface；18, alloy blade；2, drill main body.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is described in detail.
Embodiment one:
A kind of down-the-hold drill bit, with reference to Fig. 2 and Fig. 4, it includes that down-the-hold drill bit body 1, down-the-hold drill bit body 1 are cylindric, and bottom surface, down-the-hold drill bit body 1 bottom inwardly processes connecting hole 11, and connecting hole 11 is for being connected to down-the-hold drill bit machine by down-the-hold drill bit body 1；nullDown-the-hold drill bit body 1 upper end is provided with four equally distributed alloy blades 18，Alloy blade 18 is fixed by welding on down-the-hold drill bit body 1，Equally distributed four chip areas 16 are processed on down-the-hold drill bit body 1 sidewall，Chip area 16 one end connects the down-the-hold drill bit body 1 end for drilling，Simultaneously between any two alloy blade 18，The gravel particle enabling alloy blade 18 drilling is discharged from chip area 16，With reference to Fig. 3，Chip area 16 other end rotates contrary direction bending to down-the-hold drill bit body 1，Make chip area 16 that gravel particle to be guided，So that gravel particle can discharge chip area 16 faster，Due to chip area 16 diapire and the down-the-hold drill bit roof transition position for drilling end，It is not easy to gravel particle and enters chip area 16，At down-the-hold drill bit body 1 for being machined with slide surface 17 between drilling end and chip area 16，Gravel particle can enter chip area 16 smoothly by slide surface 17.
With reference to Fig. 4, down-the-hold drill bit body 1 upper-end part of driving processes central row water hole 121 in four alloy blade 18 centers, two side osculums 122 are processed on down-the-hold drill bit body 1, two side osculums 122 are positioned in two chip areas 16 being separated by, side osculum 122 is perpendicular to down-the-hold drill bit axial line, and one end that central row water hole 121 and two side osculums 122 are positioned within down-the-hold drill bit body 1 communicates with connecting hole 11；One end that central row water hole 121 is positioned at outside down-the-hold drill bit is positioned at the center of four alloy blades 18, and the water that Shi Cong center osculum 121 ejects can uniformly be sprayed onto each alloy blade 18, makes alloy blade 18 be lowered the temperature timely during drilling；Two side osculums 122 communicate with down-the-hold drill bit body 1 sidewall, enable to be made down-the-hold drill bit body 1 sidewall lower the temperature in time by the water of two side osculums 122.
With reference to Fig. 4 and Fig. 5, it is provided with mutually isostructural screen plate 13 in central row water hole 121 with two side osculums 122, and screen plate 13 is identical with the connected mode in central row water hole 121 and two side osculums 122, the most only narration screen plate 13 and the connected mode in central row water hole 121；nullScreen plate 13 is connected by ring-shaped rubber 14 with medial wall, central row water hole 121，The cross section of ring-shaped rubber 14 is triangle，Integrally formed with ring-type projection 141 at the bottom center of ring-shaped rubber 14，The annular recess 125 coordinated with ring-type projection 141 is inwardly processed on medial wall, central row water hole 121，Ring-shaped rubber 14 is fixedly installed on screen plate 13 lateral wall by ring-type projection 141，Central row water hole 121 processes V-type groove 123 on medial wall，Two side-fit of the V-shaped structure of V-type groove 123 and ring-shaped rubber 14，When screen plate 13 is fixed in central row water hole 121，Screen plate 13 is by ring-shaped rubber 14 and V-type groove 123 snap-fit engagement，When screen plate 13 needs dismounting，Compression by ring-shaped rubber 14，Ring-shaped rubber 14 is made to depart from V-type groove 123；Some equally distributed water outlet pores 131 are processed on screen plate 13, water in down-the-hold drill bit machine flows to alloy blade 18 through water outlet pore 131, water outlet pore 131 is pyramid type structure, the water flowed through in water outlet pore 131 is gradually reduced in cross section during flowing, thus eject in water outlet pore 131 with the highest speed, make water be sprayed onto on alloy blade 18 with the fastest speed, make alloy blade 18 lower the temperature rapidly；Screen plate 13 is plane close to the surface of connecting hole 11, and it is globoidal structure that screen plate 13 is positioned at the surface outside down-the-hold drill bit body 1, and the water making water eject from all water outlet pores 131 is divergent shape such that it is able to make more water be ejected on each alloy cutter.
Work process: with reference to Fig. 4 and Fig. 5; when down-the-hold drill bit body 1 drilling rock; down-the-hold drill bit body 1 rotates; by alloy blade 18, rock is carried out drilling; the gravel particle that drilling goes out can slide to slide surface 17 along the knife face of alloy blade 18; chip area 16 is slipped into by slide surface 17; when gravel particle slides to side osculum 122; obstruct due to screen plate 13; side osculum 122 can not be blocked by gravel particle; gravel particle continues to one end sliding away from alloy blade 18 in chip area 16, until the gap skidded off between down-the-hold drill bit body 1 and rock；When rock drilling is made alloy blade 18 temperature the highest by alloy blade 18, by the down-the-hold drill bit machine discharge water being connected with connecting hole 11, water first flows through connecting hole 11, subsequently into the water outlet pore 131 being positioned at central row water hole 121, finally spray to alloy blade 18, make alloy blade 18 lower the temperature in time；Down-the-hold drill bit body 1 sidewall and the friction of rock cause down-the-hold drill bit body 1 side wall temperatures the highest, the water of entrance connecting hole 11 water outlet pore 131 in side osculum 122 sprays to rock and down-the-hold drill bit body 1 sidewall, enables down-the-hold drill bit body 1 sidewall to lower the temperature in time.
With reference to Fig. 2-Fig. 5, when screen plate 13 needs dismounting, by to down-the-hold drill bit body 1 internal pressing screen plate 13, ring-shaped rubber 14 is made to depart from V-type groove 123 away from the one side within down-the-hold drill bit body 1, ring-shaped rubber 14 is in V-type groove 123 sliding in the one side within down-the-hold drill bit body 1, until ring-shaped rubber 14 departs from V-type groove 123, then proceedes to slide on side osculum 122 or medial wall, central row water hole 121, hence into connecting hole 11, then take out from connecting hole 11.
Embodiment two:
A kind of down-the-hold drill bit, the difference with embodiment one is as follows:
With reference to Fig. 6 and Fig. 7, the elastic component that difference with embodiment one is in the present embodiment uses compression spring 15 and the steel ball 151 being arranged in compression spring 15 to form, screen plate 13 is identical with the connected mode in central row water hole 121 or side osculum 122, only connection narration to screen plate 13 with central row water hole 121 at this, screen plate 13 lateral wall processes four identical grooves 131 of stepping down uniformly, groove 131 of stepping down is interior for placing compression spring 15, the end that compression spring 15 is connected with medial wall, central row water hole 121 connects steel ball 151, medial wall, central row water hole 121 processes the bulbous recess 124 coordinated with four steel balls 151 uniformly.
Work process: with reference to Fig. 6 and Fig. 7, when screen plate 13 needs dismounting, by to down-the-hold drill bit body 1 internal pressing screen plate 13, steel ball 151 is made to roll in bulbous recess 124, so that compression spring 15 is compressed in groove 131 of stepping down, until steel ball 151 departs from bulbous recess 124, steel ball 151 is made to enter, with compression spring 15, groove 131 of stepping down, screen plate 13 slides in central row water hole 121 or side osculum 122 medial wall, until entering connecting hole 11, then takes out from connecting hole 11.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to above-described embodiment, and all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under this utility model principle premise, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. a down-the-hold drill bit, including down-the-hold drill bit body (1), it is provided with the connecting hole (11) for connecting down-the-hold drill bit machine in described down-the-hold drill bit body (1) one end, the other end is provided with the osculum (12) for lowering the temperature to down-the-hold drill bit body (1), described osculum (12) communicates with connecting hole (11), it is characterized in that: in described osculum (12), be provided with the defecator preventing osculum (12) from being blocked by rubble, described defecator is provided with the water outlet pore (131) discharged that supplies water.
Down-the-hold drill bit the most according to claim 1, is characterized in that: described water outlet pore (131) is tapered structure, the width of described water outlet pore (131) in down-the-hold drill bit body (1) to be gradually reduced.
Down-the-hold drill bit the most according to claim 1, is characterized in that: described defecator includes screen plate (13), and described screen plate (13) is globoidal structure away from the surface of down-the-hold drill bit machine.
Down-the-hold drill bit the most according to claim 3, is characterized in that: described screen plate (13) is dismountable with osculum (12) medial wall to be connected.
Down-the-hold drill bit the most according to claim 4, is characterized in that: described screen plate (13) lateral wall is provided with elastic component, and described screen plate (13) is connected with osculum (12) medial wall by elastic component.
Down-the-hold drill bit the most according to claim 5, it is characterized in that: described elastic component is the ring-shaped rubber (14) with triangular-section, described ring-shaped rubber (14) bottom surface is fixing with screen plate (13) lateral wall to be connected, and osculum (12) medial wall is provided with the V-type groove (123) coordinated with ring-shaped rubber (14).
Down-the-hold drill bit the most according to claim 5, it is characterized in that: described elastic component includes compression spring (15) and the steel ball (151) being arranged in compression spring (15), described screen plate (13) lateral wall concaves the groove of stepping down (131) trapped out for placing compression spring (15), and described osculum (12) medial wall concaves the bulbous recess (124) coordinated with steel ball (151) that traps out.
Down-the-hold drill bit the most according to claim 1, is characterized in that: described down-the-hold drill bit body (1) is provided with the chip removal for making gravel particle discharge on the lateral wall, end of drilling.
Down-the-hold drill bit the most according to claim 8, is characterized in that: the transition between end and the chip area (16) of drilling of described down-the-hold drill bit body (1) is provided with the slide surface (17) being easy in gravel particle entrance chip area (16).
Down-the-hold drill bit the most according to claim 1, is characterized in that: described osculum (12) includes being positioned at the central row water hole (121) of down-the-hold drill bit body (1) end roof and being positioned at the side osculum (122) of down-the-hold drill bit body (1) lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620367204.3U CN205577858U (en) | 2016-04-26 | 2016-04-26 | Down --hole drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620367204.3U CN205577858U (en) | 2016-04-26 | 2016-04-26 | Down --hole drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205577858U true CN205577858U (en) | 2016-09-14 |
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ID=56861609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620367204.3U Active CN205577858U (en) | 2016-04-26 | 2016-04-26 | Down --hole drill bit |
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| CN (1) | CN205577858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667886A (en) * | 2019-01-10 | 2019-04-23 | 南通拓新自动化设备科技有限公司 | A kind of fast joint structure of modular plastic foraminous conveyer |
| CN113732345A (en) * | 2021-09-27 | 2021-12-03 | 滕州市成海机床有限公司 | Temperature compensation type horizontal machining center |
-
2016
- 2016-04-26 CN CN201620367204.3U patent/CN205577858U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667886A (en) * | 2019-01-10 | 2019-04-23 | 南通拓新自动化设备科技有限公司 | A kind of fast joint structure of modular plastic foraminous conveyer |
| CN113732345A (en) * | 2021-09-27 | 2021-12-03 | 滕州市成海机床有限公司 | Temperature compensation type horizontal machining center |
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Address after: 318058 Sishui and Tangshangcun, Jinqing Town, Luqiao District, Taizhou City, Zhejiang Province Patentee after: Zhejiang Planka Brazing Tool Co., Ltd. Address before: 318058 Sishui and Tangshangcun, Jinqing Town, Luqiao District, Taizhou City, Zhejiang Province Patentee before: Zhejiang Pulanka Rock Tools Co., Ltd. |
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