CN110424899A - A kind of telescopic drill rod and the cleaning device for the telescopic drill rod - Google Patents
A kind of telescopic drill rod and the cleaning device for the telescopic drill rod Download PDFInfo
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- CN110424899A CN110424899A CN201910824656.8A CN201910824656A CN110424899A CN 110424899 A CN110424899 A CN 110424899A CN 201910824656 A CN201910824656 A CN 201910824656A CN 110424899 A CN110424899 A CN 110424899A
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- cylinder
- drill rod
- telescopic drill
- fixedly connected
- cleaning device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- 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
- E21B12/00—Accessories for drilling tools
-
- 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
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of telescopic drill rod and the cleaning device for the telescopic drill rod, it is related to filling pile construction equipment technical field, telescopic drill rod in the present invention is antitorque by the round tube wall with lower stopper, the anti-torsional strength of round tube wall with lower stopper is apparently higher than the anti-torsional strength of rectangular tube, effectively prevent the deformation of cylinder；Cleaning device in the present invention realizes the promotion from bottom to top of cylinder using the self-locking mechanism that every section cylinder lower end configures, and it is equipped with the water spraying mechanism for inside and outside wall, to realize the uninterrupted thorough cleaning in lifting process to cylinder inside and outside wall, while the lower stopper moved up and down in keyway also has cleaning effect to dirt；The invention can ensure that telescopic drill rod cylinder inside and outside wall does not accumulate dirt, the generation for avoiding kelly, pounding bar accident greatly prolongs the service life of telescopic drill rod, reduces construction cost, improves work efficiency, guarantees the duration.
Description
Technical field
The present invention relates to filling pile construction equipment technical field, specifically a kind of telescopic drill rod and for the telescopic drill rod
Cleaning device.
Background technique
The processing of architectural engineering pile foundation has two big forms: squeezing stake (and being divided into driven pile and jacked pile) and bored concrete pile (also known as
Excavate stake).Squeeze stake it is common be hammering method, this technique noise is big, is restricted in municipal construction because disturbing residents, and plunging is such as
Meeting hard geological conditions can not use.Bored concrete pile noise is small adaptable, is used widely, but shaft excavation difficulty is big,
Past is always hand excavation, especially in the limited place of construction space, such as: in tunnel, in Underground Space in Subway Station etc.,
These places cannot use tall and big machinery, can only manually add simple and mechanical excavation.Hand excavation's Frequent Accidents, and encounter vertical shaft and go out
Excavation difficulty is bigger after water, and hand excavation, which is faced with, to be eliminated and forbid.
A shaft-well digger just promoted in recent years can carry out operation, key problem in technology in short space in tunnel
It is configured with scalable drilling rod, drilling rod extends downwardly automatically with cutting depth.All building subway, subway in current each big city
Building for standing just turns to the construction of subterranean tunnel formula by outdoor open cut formula, positive to need a large amount of such equipment.But this equipment is not
Maturation, especially telescopic drill rod, working life only have 150 meters or so, and the vertical shaft of 30 meters of depths at most can be only done 4-5, apply
The problem of work is at high cost and seriously affects the duration, drilling rod is urgently to be resolved.
By the investigation to scene, its reason is analyzed according to the phenomenon of the failure of drilling rod in conjunction with diagram (see attached Fig. 1 and 2):
Telescopic drill rod forms (being 6 sections in Fig. 1) by several section cylinders 1, and cylinder 1 is square, and has outer retaining ring 2 below cylinder, under
There is inner shield ring 3 in side, and effect is to prevent from disconnecting.1 four jiaos of cylinder have interior sliding rail 10 and external slide rail 9(to see attached drawing 2), effect is to lead
To, guarantee concentricity and reduction frictional force, while being also subject to the maximum place of torque pressure
Be self-possessed when work by cylinder 1 and declined automatically by 5 downlink of boom hoist cable of backing, the sequence of decline be 6. 5. 4. 3. 2.,
Inner cylinder first under, 6. 5. 4. 3. 2. the sequence of promotion is that, inner cylinder first rises.
The failure that telescopic drill rod takes place frequently is kelly and pounds bar, caused by 80% or more drill pipe wear is all this failure,
Phenomenon be during drilling rod decline, such as the 6. section, the 5. section decline smoothly, the 4. section be stuck in the and 3. save in cylinder, the 3.
Section is begun to decline, and operator can not have found, since drilling rod vibration the is under 4. section cylinder is unexpected in decline or the course of work
It is sliding, by the 4. the outer retaining ring in section top and the 3. section lower section inner shield ring smash, or even disconnect, cause construction interruption.
The reason of causing kelly analysis is following two:
First is that the anti-torsional strength of rectangular tube is not natively high after a period of work caused by square cylinder deformation.
Second is that boring as deep as to being discharged in well after certain depth, a part or even most of drilling rod are immersed in muddy water or mud
In, mud enters cylinder external slide rail and interior sliding rail gap, is repeatedly extruded desiccation and forms more and more thicker firm dirt hard to tolerate, resistance
Smoothly sliding for cylinder is hindered, the cylinder that top does not intake is almost without kelly phenomenon.Therefore analysis learn second the reason is that
The main reason for causing kelly.
If can be primary by the inside and outside wall cleaning down of telescopic drill rod cylinder when coming off duty daily, dirt can not be formed, card
Bar phenomenon will not occur, but this stretch mode of telescopic drill rod especially promotion sequence simultaneously is inconvenient to rinse, because
In lifting process, when bottom, one section cylinder is left the water, such as 6. 5. 4. the has crept into the and has 3. saved in cylinder, Wu Fachong
It washes.
Summary of the invention
The purpose of the present invention is to provide a kind of telescopic drill rods, it is intended to solve the square tube of telescopic drill rod in the prior art
Body is easily deformed, the not high problem of the anti-torsional strength of square cylinder；The object of the invention is also to provide one kind to stretch for this
The cleaning device of contracting drilling rod, it is intended to solve telescopic drill rod in the prior art promotion sequence be as down toward it is lower and caused by be difficult to
The problem of cylinder of lower part is rinsed.
To achieve the above object, the present invention adopts the following technical scheme: the telescopic drill rod includes:
At least two pitch circle column-shaped barrels being successively socketed；
The keyway of barrel outer surface is provided with along the axial direction of cylinder；
It is fixedly connected on the upper stopper on keyway top；
The lower stopper that is fixedly connected on the downside of the inner wall of cylinder and corresponding can snap onto the keyway of adjacent another cylinder.
The backing steel plate that lifting can be driven by boom hoist cable is fixedly connected on the cylinder of lower side.
The hydraulic motor for driving drill bit is fixedly connected on the cylinder of lower side.
The wall body of the upper stopper and lower stopper and cylinder is connected using spot welding mode inside and outside straight pin.
The bottom of the lower stopper and the bottom junctions of cylinder weld.
A kind of cleaning device for above-mentioned telescopic drill rod, comprising:
The water spraying mechanism of inner wall and/or outer wall water spray to the cylinder for being located at upside；
Positioned at lower side cylinder by upward lifting force when, cylinder can be made successively to be collapsible into adjacent cylinder from top to bottom
Self-locking mechanism.
The self-locking mechanism includes the annulus flange for being fixedly connected on cylinder lower end, is mounted on annulus flange and can hinder
Springlock that the cylinder of downside moves up is mounted on annulus flange and when two adjacent cylinders are shunk after on the downside of mount
Annulus flange on cylinder is with the hook that hinders the cylinder after shrinking to move down and is fixedly connected on annulus flange and when adjacent
Two cylinders shrink after contact with the springlock on the cylinder of downside to open the lockaid gun of springlock.
The springlock include the lock body being fixedly connected on annulus flange, activity pass through lock body one end guide rod, with
One end of guide rod is fixedly connected and can enter or detach the lock tongue of inner barrel, for connecting when following guide rod mobile
The pressure spring of lock tongue and lock body and the pull ring being fixedly connected with the other end of guide rod, the lockaid gun triangle with a narrow upper and lower width
When shape is so that two adjacent cylinders are shunk, lockaid gun, which is inserted in place after in the pull ring on the cylinder of downside, makes pull ring direction
Direction far from cylinder is mobile.
The water spraying mechanism includes the intracorporal internal spray head of cylinder for being arranged in upside, the cylinder for being arranged in upside
Outer annular spray pipe, water pump and the cylinder for connecting internal spray head, annular spray pipe and the tee tube of water pump, positioned at upside
Manhole is offered on body.
The internal spray head and annular spray pipe are arranged at the upper half of the second section cylinder from top to bottom.
The beneficial effects of the present invention are:
1, the telescopic drill rod in the present invention is antitorque by the round tube wall with lower stopper, since the anti-torsion of existing rectangular tube is strong
Degree is not natively high, therefore square cylinder is easy discrimination after a period of work, and the round tube wall with lower stopper is antitorque
Turn the anti-torsional strength that intensity is apparently higher than rectangular tube, effectively prevent the deformation of cylinder；
2, the cleaning device in the present invention realizes mentioning from bottom to top for cylinder using the self-locking mechanism that every section cylinder lower end configures
It rises, and is equipped with the water spraying mechanism for inside and outside wall, to realize in lifting process to the uninterrupted thorough of cylinder inside and outside wall
Bottom cleaning, while the lower stopper moved up and down in keyway also has cleaning effect to dirt；
3, the invention can ensure that telescopic drill rod cylinder inside and outside wall does not accumulate dirt, the generation for avoiding kelly, pounding bar accident, significantly
Extend the service life of telescopic drill rod, reduce construction cost, improve work efficiency, guarantees the duration.
Detailed description of the invention
Fig. 1 is the main view of existing square cylinder formula telescopic drill rod.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the main view of the specific embodiment of telescopic drill rod.
Fig. 4 is the partial sectional view of Fig. 3 middle cylinder body.
Fig. 5 is the cross-sectional view in Fig. 4 along line A-A.
Fig. 6 is the main view of the cleaning device for telescopic drill rod.
Fig. 7 is the partial front elevation view of the coupling part of cylinder adjacent in Fig. 6.
Fig. 8 is the top view of Fig. 7.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing.
A kind of telescopic drill rod, as in Figure 3-5, including be successively socketed at least two pitch circle column-shaped barrels 11, along cylinder
11 axial direction is provided with the keyway 12 of 11 outer surface of cylinder, the upper stopper 13 for being fixedly connected on 12 top of keyway, fixed company
Connect on the downside of the inner wall of cylinder 11 and corresponding can snap onto the lower stopper 14 in the keyway 12 of adjacent another cylinder 11.
As shown in figure 3, cylindrical tube 11 is provided with six sections in this specific embodiment, certainly, specific joint number can be according to reality
Border construction needs to be selected.Keyway 12 on cylinder 11 can planer milling machine processing, upper stopper 13 and lower stopper 14 and cylinder
The process connection that the wall body of body 11 is polished using spot welding inside and outside straight pin, the purpose for the arrangement is that preventing welding capacity from causing greatly
It deforms or there are internal stress to be deformed cylinder 11 during the work time.But it is connected in the bottom of lower stopper 4 with 1 bottom of cylinder
Place can weld, to reinforce its bonding strength.
Telescopic drill rod is identical with square cylinder formula telescopic drill rod working principle, specifically, being located at the cylinder of lower side
The backing steel plate 15 that lifting can be driven by boom hoist cable 16 is fixedly connected on 11, it is solid on the cylinder 11 of lower side
Surely it is connected with the hydraulic motor 18 for driving drill bit 19.The difference is that square cylinder formula telescopic drill rod is antitorque by rectangle barrel,
Telescopic drill rod is antitorque by the round tube wall (being closely same as splined shaft) with lower stopper 14.Since the anti-torsional strength of rectangular tube is original
It is just not high, therefore square cylinder is easy discrimination after a period of work, and the round tube wall with lower stopper 14 (is closely same as spline
Axis) anti-torsional strength be apparently higher than the anti-torsional strength of rectangular tube, effectively prevent the deformation of cylinder 11.
When cylindrical tube 11 is such that inside cartridge 11 moves up and down inside cylinder 11 on the outside at work, outside
The lower stopper 14 of side neck body 11 is slided in the keyway 12 of inside cartridge 11, when the decline of cylinder 11 is at the end, inside cartridge 11
Upper stopper 13 contacted with the lower stopper 14 of the interior lower end of outside cylinder 11, the decline of inside cartridge 11 is blocked, and this section is flexible
Bar extension finishes.
As shown in figure 5, lower stopper 14, keyway 12 and upper stopper 13 are evenly arranged with six along the circumferencial direction of cylinder 11
A, certainly, the quantity of lower stopper 14, keyway 12 and upper stopper 13 can select according to actual needs.
A kind of cleaning device for above-mentioned telescopic drill rod, including the inner wall to the cylinder 11 for being located at upside and/or outside
The water spraying mechanism of wall water spray, positioned at lower side cylinder 11 by upward lifting force when, cylinder 11 can be made from top to bottom successively
The self-locking mechanism being collapsible into adjacent cylinder 11.
In the prior art, telescopic drill rod is bored as deep as to being discharged in well after certain depth, a part or even most of drilling rod
It is immersed in muddy water or mud, mud enters existing cylinder external slide rail and interior sliding rail gap, is repeatedly extruded desiccation and is formed
More and more thicker firm dirt hard to tolerate hinders smoothly sliding for cylinder, and the cylinder that top does not intake is almost without kelly phenomenon.
Therefore analysis learns this reason is that the main reason for causing kelly.
In the present invention, by the water spraying mechanism of setting can be located at upside cylinder 11 inner wall and/or outer wall into
Row water spray, as shown in fig. 6, due to internal spray head 26 and annular spray pipe 22 setting can inner and outer wall to cylinder 11 it is same
Shi Jinhang water spray.But the promotion of existing telescopic drill rod sequence as shown in Figure 1, be successively according to sequence 6. 5. 4. 3. 2. by
Under supreme promotion, inner cylinder first rises, if can be primary by the cylinder inside and outside wall cleaning down of drilling rod when coming off duty daily, dirt be not
It can be formed, kelly phenomenon will not occur, but this stretch mode of existing telescopic drill rod, especially promotion sequence are not
Facilitate flushing, because in lifting process, when one section cylinder is left the water when bottom, such as 6. 5. 4. 3. the has crept into the
It saves in cylinder, can not rinse.If promotion sequence can be changed, i.e., from top to bottom by 2. 3. 4. 5. 6. order lift, then institute below
There is the inside and outside wall of cylinder that will pass through the flushing of internal spray head 26 and annular spray pipe 22, each position of telescopic drill rod will be by
To flush clean.To reach this purpose, the applicant designs above-mentioned self-locking mechanism.
Specifically, the self-locking mechanism includes the annulus flange 32 for being fixedly connected on 11 lower end of cylinder, is mounted on ring method
On orchid 32 and the cylinder 11 of downside can be hindered to move up springlock 31, be mounted on annulus flange 32 and when two adjacent cylinders
11 shrink after annulus flange 32 on cylinder 11 for mount downside with hinder the hook 34 that moves down of cylinder 11 after contraction with
And it is fixedly connected on the springlock 31 on the cylinder 11 on annulus flange 32 and after two adjacent cylinders 11 are shunk with downside
It contacts to open the lockaid gun 33 of springlock 31.The springlock 31 include be fixedly connected on annulus flange 32 lock body 311,
When activity passes through the guide rod 312 of 311 one end of lock body, is fixedly connected with one end of guide rod 312 and follows guide rod 312 mobile
Can enter or detach the lock tongue 313 inside cylinder 11, the pressure spring 314 for connecting lock tongue 313 and lock body 311 and with lead
The pull ring 315 being fixedly connected to the other end of bar 312, the lockaid gun 33 triangle with a narrow upper and lower width is so that adjacent two
When a cylinder 11 is shunk, lockaid gun 33, which is inserted in place, is directed away from pull ring 315 after in the pull ring 315 on the cylinder 11 of downside
The direction of cylinder 11 is mobile.
As shown in fig. 7, being fitted with annulus flange 32 in the lower end of every section cylinder 11, effect is first is that reinforce under cylinder 11
The part of the force at end enhances resistance to deformation intensity, second is that for installing springlock 31, springlock 31 and annulus flange 32 can for effect
It adopts and is bolted connection, it is easy to replace and maintain.As shown in figure 8, being respectively mounted three on the annulus flange 32 of every section cylinder 11
Springlock 31.Three hooks 34 are also equipped with three intervals of springlock 31, for lockking on the next section cylinder 11 for rising top
Annulus flange 32 prevents its downslide.
As shown in fig. 7, cylinder 11 is when dropping to lower limit under the upper stopper 13 of 11 outer wall of cylinder and 11 inner wall of cylinder
Block 14 contacts, and decline is prevented from.The upper surface for being now placed in the interior cylinder 11 of downside is lower than the external cylinder for being located at upside
11 lock tongue 313, lock tongue 313 lose the blocking of interior cylinder 11 to spring into the inside of the external cylinder 11 positioned at upside.
Three lock tongues 313 sprung into form the blocking that next section cylinder 11 rises.
As shown in fig. 7, three section cylinders 11 being mutually socketed are shown as in figure, for the convenience of description, existing by three section cylinders 11
It is successively labeled as cylinder 11a, cylinder 11b, cylinder 11c from top to bottom.It is to be promoted from bottom to top when telescopic drill rod is promoted, tool
Body process are as follows: positioned at downside cylinder 11c upper surface due to by three stretch out lock tongue 313 stop, be forced to lift cylinder 11b
First rise, if cylinder 11a is a uppermost section, be not necessarily to self-locking mechanism below it, thus cylinder 11b is unobstructed can be with
It rises.When cylinder 11b rises to the upper limit, three hooks 34 being mounted on the annulus flange 3 of cylinder 11a will tangle cylinder 11b
Annulus flange 3, while the pull ring 315 in the springlock 31 of its lower end is installed in the upper width on the annulus flange 3 of cylinder 11a
Under the insertion of lockaid gun 33 of narrow triangle (can be the wedge shape that one side is inclined-plane) open in advance, cylinder 11c starts at this time
Rise ..., and so on, the annulus flange 3 of lower section cylinder 11 is tangled and cannot be glided by the hook 34 of upper section cylinder 11, lower section
3. 4. 5. the springlock 31 of cylinder 11 is promoted by the opening of lockaid gun 33 on upper section cylinder 11, to realize 2.
6. ... promotion sequence, created condition for automatic cleaning.
Specifically, as shown in fig. 6, the water spraying mechanism includes the inside spray head being arranged in the cylinder 11 of upside
26, be arranged in upside cylinder 11 outside annular spray pipe 22, water pump 24 and for connect internal spray head 26, annular spray
The tee tube 25 of water pipe 22 and water pump 24 offers manhole 23 on the cylinder 11 of upside.
Tap water etc. is injected into tee tube 25 by water pump 24, and then tap water etc. is entered in internal spray head 26 again and sprayed
Out, so that tap water etc. be made to be rinsed the inner wall of cylinder 11, tap water etc. is also entered in annular spray pipe 22 and is sprayed,
To make tap water etc. be rinsed the outer surface of cylinder 11.
Optionally, water pump in the use of water pump 24, hydraulic pressure 3-4Mpa.Internal spray head 26 and annular spray pipe 22 are all provided with
It sets in the upper half of the second section cylinder 11 from top to bottom.
Certainly, the inside spray head 26 in water spraying mechanism and annular spray pipe 22 can also pass through different conveying water pipes respectively
Road is connected from different water pumps, equally can be realized above-mentioned technical effect.
In the description of the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body meaning.
Claims (10)
1. a kind of telescopic drill rod, characterized in that include:
At least two pitch circle column-shaped barrels (11) being successively socketed；
The keyway (12) of cylinder (11) outer surface is provided with along the axial direction of cylinder (11)；
It is fixedly connected on the upper stopper (13) on keyway (12) top；
It is fixedly connected on the downside of the inner wall of cylinder (11) and corresponding can snap onto the keyway (12) of adjacent another cylinder (11)
Interior lower stopper (14).
2. telescopic drill rod according to claim 1, characterized in that be fixedly connected on the cylinder (11) of lower side
There is the backing steel plate (15) that lifting can be driven by boom hoist cable (16).
3. telescopic drill rod according to claim 1, characterized in that be fixedly connected on the cylinder (11) of lower side
Have for driving the hydraulic motor of drill bit (19) (18).
4. telescopic drill rod according to claim 1-3, characterized in that the upper stopper (13) and lower stopper (14)
It is connect with the wall body of cylinder (11) using spot welding mode inside and outside straight pin.
5. telescopic drill rod according to claim 1-3, characterized in that the bottom of the lower stopper (14) and cylinder
(11) bottom junctions welding.
6. a kind of cleaning device for telescopic drill rod as described in any one in claim 1-5, characterized in that include:
The water spraying mechanism of inner wall and/or outer wall water spray to the cylinder (11) for being located at upside；
Positioned at lower side cylinder (11) by upward lifting force when, cylinder (11) can be made successively to be collapsible into from top to bottom adjacent
Cylinder (11) in self-locking mechanism.
7. cleaning device according to claim 6, characterized in that the self-locking mechanism includes being fixedly connected on cylinder (11)
The annulus flange (32) of lower end, the springlock for being mounted on annulus flange (32) and the cylinder (11) of downside being hindered to move up
(31), it is mounted on annulus flange (32) and after two adjacent cylinders (11) are shunk for mounting the cylinder (11) of downside
Annulus flange (32) to hinder the hook (34) that moves down of cylinder (11) after shrinking and be fixedly connected on annulus flange (32)
Above and the springlock (31) on the cylinder (11) after two adjacent cylinders (11) are shunk with downside is contacted to open springlock
(31) lockaid gun (33).
8. cleaning device according to claim 7, characterized in that the springlock (31) includes being fixedly connected on ring method
Lock body (311), activity on blue (32) pass through the guide rod (312) of lock body (311) one end and the one end of guide rod (312) is consolidated
The internal lock tongue (313) of cylinder (11) is connected and can entered when following guide rod (312) mobile or detach calmly, for connecting
The pressure spring (314) of lock tongue (313) and lock body (311) and the pull ring (315) being fixedly connected with the other end of guide rod (312),
When the lockaid gun (33) triangle with a narrow upper and lower width is so that two adjacent cylinders (11) are shunk, lockaid gun (33) insertion
The direction for making pull ring (315) be directed away from cylinder (11) after in pull ring (315) on to the cylinder (11) for being located at downside is mobile.
9. cleaning device according to claim 6, characterized in that the water spraying mechanism includes the cylinder for being arranged in upside
Inside spray head (26) in body (11), be arranged in the outer annular spray pipe (22) of the cylinder (11) of upside, water pump (24) with
And the tee tube (25) for connecting internal spray head (26), annular spray pipe (22) and water pump (24), the cylinder positioned at upside
(11) manhole (23) are offered on.
10. cleaning device according to claim 9, characterized in that the internal spray head (26) and annular spray pipe (22)
It is arranged at the upper half of the second section cylinder (11) from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910824656.8A CN110424899B (en) | 2019-09-02 | 2019-09-02 | Telescopic drill rod and cleaning device for same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910824656.8A CN110424899B (en) | 2019-09-02 | 2019-09-02 | Telescopic drill rod and cleaning device for same |
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| CN110424899A true CN110424899A (en) | 2019-11-08 |
| CN110424899B CN110424899B (en) | 2024-05-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671063A (en) * | 2019-11-15 | 2020-01-10 | 深圳市工勘岩土集团有限公司 | Telescopic drilling protective cover structure |
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| CN110671063A (en) * | 2019-11-15 | 2020-01-10 | 深圳市工勘岩土集团有限公司 | Telescopic drilling protective cover structure |
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