CN206815423U - A kind of device of quick laying continuous flexible pipe - Google Patents
A kind of device of quick laying continuous flexible pipe Download PDFInfo
- Publication number
- CN206815423U CN206815423U CN201720502336.7U CN201720502336U CN206815423U CN 206815423 U CN206815423 U CN 206815423U CN 201720502336 U CN201720502336 U CN 201720502336U CN 206815423 U CN206815423 U CN 206815423U
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- shaft
- tractor
- crawler belt
- connect
- flexible pipe
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Abstract
A kind of device of quick laying continuous flexible pipe of the present utility model belongs to pipeline engineering field, it is made up of trench digging laying and backfill ridging system, trench digging laying system mounted in the anterior spacing bracket of wheeled tractor, the crawler type ditching machine at rear portion, the guide carriage even on ditching machine by even forming；Backfill ridging system is made up of the poly- native tie ridger even at the native auger mechanism of receipts and rear-mounted at front-end weight block of tractor.The present apparatus can be carried out pipe canal digging and pipeline decentralization simultaneously, and progress is connected with backfilling of pipe canal ridging, shortens the laying duration 1/2, reduces earthwork excavated volume 4/5, reduces engineering cost, reduced ground surface environment and destroyed.
Description
Technical field
The device of quick laying continuous flexible pipe of the present utility model belongs to pipeline engineering field.
Background technology
Nonmetal flexible continuous composite pipe has the characteristic of excellent resistance to inside and outside corrosion, in recent years in petroleum works application more
Come more extensive, its single length of tube is typically smaller than DN150 in 50-1000 rice, bore.The traditional approach for laying flexible pipe is digging
Pick machine or ditching machine excavate pipe trench, then manually bottom of trench will be put under pipeline, finally carry out backfilling of earthwork work, it has the earthwork
Excavated volume is big, serious to earth's surface environmental disruption, and restoration costs are more, excavates with backfilling time-consuming length, labor strength is big, and efficiency is low
The defects of lower.
The content of the invention
The purpose of this utility model is that providing one kind can transfer pipe canal digging while carry out with pipeline, with backfilling of pipe canal
Ridging linking is carried out, and earthwork excavated volume is small, slight to earth's surface environmental disruption, shortens the dress of the quick laying continuous flexible pipe of duration
Put.
What the purpose of this utility model was realized in：The device of quick laying continuous flexible pipe is laid by trench digging and backfill
Ridging two systems form.
Trench digging laying system：By even mounted in the anterior spacing bracket of wheeled tractor, even the crawler type ditching machine at rear portion, dress
Guide carriage composition on the ditching machine.Crawler type ditching machine is by bearer carrier, lifting seat, rear hydraulic jack, hangers chain, outstanding
Arm beam, crawler belt arm, rear headstock, drive sprocket, rear sprocket wheel, casting auger composition；Tractor rear-mounted respectively with I-shaped support
The triangle of stand both sides erects to be connected in the middle part of wall forward lower comer and the horizontal segment of this；Two perpendicular wall posterior angles respectively with trapezoidal lifting seat
Preceding base angle it is active be connected, two drift angles are connected by active in the middle part of the both sides Attacking Midfielder of rear hydraulic jack and lifting seat respectively；Lifting
The upper and lower bottom of seat is connected with the cuboid cantilever beam perpendicular to two bottom and crawler belt arm respectively；Cantilever beam rear end is connected with deep-slotted chip breaker, even
The place of connecing separately is connected with vertical Π shapes roller frame and support roller；Crawler belt arm front and back ends connect equipped with drive sprocket and rear sprocket wheel, the chain of ring two respectively
Wheel is set with hangers chain, is staggeredly connected with the hangers of the chain both sides and cuts native tooth；Lifting seat bottom is equiped with rear headstock, its
Inside be equiped with turbine and worm pair, tractor rear power output shaft is connected with inter-axle shaft, inter-axle shaft stretch into case with turbine phase
Even, worm screw is stretched out outside case, and outer end is connected with drive sprocket；On the crawler belt arm at lifting seat, pass through the active company of connecting shaft plate
Equipped with the screw-conveyer-shaft vertical with the arm, connect on axle equipped with catena wheel is dialled, the sprocket wheel engages with hangers chain, the strand of crawler belt arm both sides
Connect respectively on imperial axle equipped with each other backwards to the casting auger of rotation；At front-end weight block of tractor and between bearer carrier two erects wall, point
Do not connect and connect equipped with vertical Π shapes roller frame and support roller equipped with vertical Π shapes spacing bracket and guide carriage, two bracket upper ends；
Backfill ridging system：By the even native auger mechanism of receipts at front-end weight block of tractor, the poly- soil at rear-mounted
Ridge device composition.
Receive native auger mechanism：Connect between the framework of opening portion two of Π shape horizontal shaft brackets equipped with horizontal screw-conveyer-shaft, in the middle part of the axle
Before stretching into headstock, connect in case interior axle equipped with angular wheel, case connects the receipts soil equipped with opposite direction rotating and twisted respectively outside in two side axles
Dragon；Tractor rear power output shaft port, which connects, is equipped with upper sprocket wheel, connects on the body below sprocket wheel equipped with lower sprocket, two sprocket wheels are with chain
Bar interlocks；Front propeller shaft passes through under tractor chassis, and shaft rear end is connected with lower sprocket, and front end penetrates preceding headstock, and shaft end connects
Equipped with angular wheel, engaged with the angular wheel on screw-conveyer-shaft；Connect between reamer axle and pedestal equipped with earth-retaining backplate, balancing weight with
Pedestal is active to be connected, and preceding hydraulic jack both ends are connected with balancing weight, pedestal respectively.
Gather native tie ridger：It is overall in front wide and rear narrow front and rear open funnel-form, by side board, framework, connecting pole, tie rod and
Batter brace forms, and between splay two vertical side board upper limb front and back ends are lined up, is connected with horizontal frame respectively, in forward frame
Portion is connected with vertical connecting pole, and batter brace is connected between the post upper end and rear frame both ends, is spaced and is connected between front and rear portions framework
Tie rod, both ends of the tractor rear-mounted respectively with connecting pole, forward frame are connected.
Further, cantilever beam and crawler belt arm are spatially upper and lower corresponding relation, the two company with the trailing wheel of tractor two
Line is spatially vertical relation.
Further, spatially cantilever beam rear end is located at after rear sprocket wheel.
Further, in the side wall of crawler belt arm side, connecting shaft plate is connected with, the plate bottom perforate is active to be set with and crawler belt
The vertical screw-conveyer-shaft in brachium direction, the axle position is between hangers chain and crawler belt arm lower surface, and on the outside of connecting shaft plate and crawler belt arm is another
On the screw-conveyer-shaft of side, fixed respectively to be equiped with clamping wheel, hangers chain is clamped therebetween and passed freely through.
Further, it is covered with sheath in driver's cabin to the front propeller shaft between pedestal.
Further, with connecting on the bearer carrier of cantilever beam front end corresponding position equipped with breast boards.
Further, vertical strengthening ribs, reinforcement upper end and outermost tie rod are respectively connected with two vertical side board outer walls
It is respectively connected with.
Due to carrying out above-mentioned technical proposal, this laying apparatu can be carried out pipe canal digging and pipeline decentralization simultaneously, with pipe trench
Backfill ridging linking to carry out, shorten the laying duration 1/2, reduce earthwork excavated volume 4/5, reduce engineering cost, reduce ground surface environment
Destroy.
Brief description of the drawings
Concrete structure of the present utility model is provided by following drawings and examples：
Fig. 1 is the apparatus structure schematic diagram of quick laying continuous flexible pipe；
Fig. 2 is crawler type ditching machine structural representation；
Fig. 3 is to receive native auger structural representation；
Fig. 4 is to gather native tie ridger structural representation；
Fig. 5 is tractor rear-mounted and crawler type ditching machine connecting portion partial structural diagram；
Fig. 6 is the device drive connection schematic diagram of quick laying continuous flexible pipe；
Fig. 7 is crawler type ditching machine partial structural diagram.
Legend：1st, breast boards, 2, guide carriage, 3, roller frame, 4, support roller, 5, flexible pipe, 6, tractor, 7, spacing support
Frame, 8, cut native tooth, 9, cantilever beam, 10, rear sprocket wheel, 11, tensioning block, 12, crawler belt arm, 13, hangers chain, 14, connecting shaft plate, 15,
Casting auger, 16, screw-conveyer-shaft, 17, lifting seat, 18, rear hydraulic jack, 19, bearer carrier, 20, rear-mounted, 21, balancing weight, 22,
Preceding hydraulic jack, 23, receive native auger, 24, preceding headstock, 25, earth-retaining backplate, 26, screw-conveyer-shaft, 27, pedestal, 28, protective case,
29th, connecting pole, 30, side plate, 31, tie rod, 32, batter brace, 33, framework, 34, reinforcement, 35, front propeller shaft, 36, rear power
Case, 37, inter-axle shaft, 38, upper sprocket wheel, 39, worm screw, 40, drive sprocket, 41, lower sprocket, 42, chain, 43, dial catena wheel,
44th, clamping wheel.
Embodiment
The utility model is not limited by following embodiments, can according to the technical solution of the utility model and actual conditions come
Determine specific embodiment.
Embodiment：As shown in Fig. 1-7, a kind of device of quick laying continuous flexible pipe, ridging is laid by trench digging and backfilled
Two systems form：
Trench digging laying system：By the even crawler type ditching machine mounted in the anterior spacing bracket 7 of wheeled tractor 6, rear portion, connect
Guide carriage 2 on ditching machine forms.Crawler type ditching machine is by bearer carrier 19, lifting seat 17, rear hydraulic jack 18, hangers
Chain 13, cantilever beam 9, crawler belt arm 12, rear headstock 36, drive sprocket 40, rear sprocket wheel 10, casting auger 15 form, tractor 6
Bikini rear-mounted erects with the triangle of the I-shaped both sides of bearer carrier 19 respectively to be connected in the middle part of wall forward lower comer and the horizontal segment of this.
Two perpendicular wall posterior angles respectively with the preceding base angle of trapezoidal lifting seat 17 is active is connected, two drift angles pass through rear hydraulic jack 18 and liter respectively
Active in the middle part of the both sides Attacking Midfielder of seat 17 be connected drops.17 upper and lower bottom of lifting seat respectively with the cuboid cantilever beam 9 perpendicular to two bottom
It is connected with crawler belt arm 12, cantilever beam 9 and crawler belt arm 12 are spatially upper and lower corresponding relation, the two and the trailing wheel of tractor 6 two
Line is spatially vertical relation.The rear end of cantilever beam 9 is connected with deep-slotted chip breaker, and junction is separately connected with vertical Π shapes roller frame 3 and support
Wheel 4.The front and back ends of crawler belt arm 12 connect respectively is set with hangers chain 13 equipped with drive sprocket 40 and rear sprocket wheel 10, the sprocket wheel of ring two, should
Staggeredly it is connected with the hangers of chain both sides and cuts native tooth 8.Spatially the rear end of cantilever beam 9 is located at after rear sprocket wheel 10.With cantilever
Connect on the bearer carrier 19 of the front end corresponding position of beam 9 equipped with breast boards 1.The bottom of lifting seat 17 is equiped with rear headstock 36, in it
Turbine and worm pair is equiped with, the rear power output shaft of tractor 6 is connected with inter-axle shaft 37, and inter-axle shaft 37 stretches into case and turbine
It is connected, worm screw 39 is stretched out outside case, and outer end is connected with drive sprocket 40.In the side side wall of crawler belt arm 12 at lifting seat 17
On, connecting shaft plate 14 is connected with, the plate bottom perforate, freedom suit has the screw-conveyer-shaft 16 vertical with the length direction of crawler belt arm 12, the axle position
Between hangers chain 13 and the lower surface of crawler belt arm 12, connect on axle equipped with catena wheel 43 is dialled, the sprocket wheel engages with hangers chain 13.
On the screw-conveyer-shaft 16 of the outside of connecting shaft plate 14 and the opposite side of crawler belt arm 12, fixation respectively is equiped with clamping wheel 44, the quilt of hangers chain 13
Clamp therebetween and pass freely through.On the screw-conveyer-shaft 16 in the outside of clamping wheel 44, connect respectively equipped with each other backwards to the casting auger of rotation
15.At the front-end weight block 21 of tractor 6 between the perpendicular wall of bearer carrier 19 2, connect respectively equipped with vertical Π shapes spacing bracket 7 and be oriented to
Bracket 2, two bracket upper ends connect equipped with vertical Π shapes roller frame 3 and support roller 4.
Backfill ridging system：By the poly- soil of the even native auger mechanism of receipts on the front-end weight block 21 of tractor 6, rear-mounted
Tie ridger forms.
Receive native auger mechanism：Connect between the framework of opening portion two of Π shapes horizontal shaft bracket 27 equipped with horizontal screw-conveyer-shaft 26, the axle
Before middle part is stretched into headstock 24, connect in case interior axle and connect respectively equipped with opposite direction rotating in two side axles outside equipped with angular wheel, case
Receive native auger 23.The rear power output shaft port of tractor 6, which connects, is equipped with upper sprocket wheel 38, connects on the body below the sprocket wheel equipped with lower chain
Wheel 41, two sprocket wheels are interlocked with chain 42.Front propeller shaft 35 passes through under the chassis of tractor 6, and shaft rear end is connected with lower sprocket 41, preceding
Headstock 24 before end penetrates, shaft end are even equipped with angular wheel, engaged with the angular wheel on screw-conveyer-shaft 26, in driver's cabin to pedestal
Front propeller shaft 35 between 27 is covered with protective case 28.Connect between screw-conveyer-shaft 26 and pedestal 27 parallel with it equipped with semiarc shape earth-retaining
Backplate 25.Balancing weight 21 with pedestal 27 is active is connected.The preceding both ends of hydraulic jack 22 are connected with balancing weight 21, pedestal 27 respectively.
Gather native tie ridger：The overall funnel-form in front wide and rear narrow front and rear opening, by side plate 30, framework 33, connecting pole 29, drawing
Bar 31 and batter brace 32 form, and between the splay two vertical upper limb front and back ends of side plate 30 are lined up, are connected with horizontal frame respectively
33, the anterior middle part of framework 33 is connected with vertical connecting pole 29, and oblique pull is connected between the both ends of framework 33 at the post upper end and rear portion
Bar 32.Interval is connected with tie rod 31 between front and rear portions framework 33.The bikini rear-mounted of tractor 6 respectively with connecting pole 29, forward frame
33 both ends are connected.Vertical strengthening ribs 34, the upper end of reinforcement 34 and outermost drawing are respectively connected with the two vertical outer walls of side plate 30
Bar 31 is respectively connected with.
During quick laying continuous flexible pipe, laid by ditching and backfilled the stage 7 of ridging two step and form；
Ditching laying task：
Step 1：500 meters long of flexible pipe 5 is first placed along pipe trench floor line, crawler type ditching machine is connected to tractor
In 6 three-point type hydraulic suspension, the rear power output shaft of tractor 6 is connected with the inter-axle shaft 37 of ditching machine, starts tractor 6
With rear hydraulic jack 18, the rear portion of crawler belt arm 12 is slowly earthward tilted, casting auger 15 is fallen within ground；
Step 2：Tractor 6 is started, inter-axle shaft 37 drives crawler type ditching machine to excavate pipe trench, and hangers chain 13 is clockwise
Rotate, cut the both sides ground that the soil that native tooth 8 is dug out synchronously is drained into pipe trench by casting auger 15；
Step 3：After digging setting ditch depth, continuous 5 meters of trench digging, the rear end of flexible pipe 5 is bound with strop, manually pulls it
The roller frame 3 from the upper end of spacing bracket 7 penetrates successively, through the roller frame 3 of the upper end of guide carriage 2, through the support roller on cantilever beam 9
Frame 3, in the deep-slotted chip breaker whereabouts ditch of the beam rear end, before, during and after flexible pipe 5 rides over all the time on three support rollers 4, pipe rear end is used
Anchoring pile is fixed；
Step 4：The inclination angle of crawler belt arm 12 is kept in 45-60 degree, and make casting auger 15 all the time cross-arm on pipe trench.It is dilatory
Machine 6 is advanced with 5 ms/min of speed, and while trench digging, flexible pipe 5 can voluntarily enter bottom of trench, is worked continuously until will
Often the long flexible pipe 5 of 500 meters of disk has been laid.
Backfill ridging operation：
Step 1：The connection of the rear power output shaft of tractor 6 and inter-axle shaft 37 is disconnected, extracts crawler type ditching machine with dragging
The connection of the rear-mounted of machine drawing 6, the balancing weight 21 and rear-mounted phase of native auger mechanism and poly- native tie ridger and tractor will be received respectively
Even, upper sprocket wheel 38, lower sprocket 41 are connected with chain 42；
Step 2：Start tractor 6 and ride over and advanced on pipe trench, put down rear-mounted, make to gather native tie ridger close proximity to ground.Receive
The lower section pipe trench of headstock 24, is backfilled before the soil for being deposited in pipe trench both sides is delivered to by native auger 23, and gathering native tie ridger will receive
Native auger 23 fails to convey soil more than clean pipe trench both sides and continues to collapse backfill pipe trench and ridging；
Step 3：After having dug 500 mitron ditches, tractor 6 is exercised after crawler type ditching machine outputs a bit of pipe trench before continuing to stop
Machine, before another section of 500 meters of flexible pipes before machine are erected at according to step 3 methods described in ditching laying task in after three support
On wheel carrier 4, by the front end screw thread of flexible pipe 5, flange or the welding manner that have laid and the follower head phase of flexible pipe 5 to be laid
Even, continue to excavate pipe trench according to step 1,4 steps in ditching laying task and synchronously lay the line.
It is that with the passing of time natural subsidence gathers rainwater, second, for ease of distinguishing in the future because soil property is soft after preventing from backfilling to gather native ridging
It is pipeline location to know pipe trench.The present apparatus be very suitable for the landform relatively flat such as gobi, farmland, grassland area, to below DN150
Flexible pipe 5 carry out quick laying task.
Described above is only intended to clearly illustrate the utility model example, and is not to of the present utility model
The restriction of embodiment.It is every to belong to the obvious changes or variations that the technical solution of the utility model is amplified out and still locate
In the scope of protection of the utility model.
Claims (7)
1. a kind of device of quick laying continuous flexible pipe, is laid by trench digging and backfill ridging two systems forms, its feature exists
In：
Trench digging laying system：By connecting the crawler type ditching machine mounted in the anterior spacing bracket of wheeled tractor, rear portion, being even mounted in and be somebody's turn to do
Guide carriage composition on ditching machine；Crawler type ditching machine is by bearer carrier, lifting seat, rear hydraulic jack, hangers chain, cantilever
Beam, crawler belt arm, rear headstock, drive sprocket, rear sprocket wheel, casting auger composition, tractor rear-mounted respectively with I-shaped bracket
The triangle of seat both sides erects to be connected in the middle part of wall forward lower comer and the horizontal segment of this；Two perpendicular wall posterior angles respectively with trapezoidal lifting seat
Preceding base angle is active to be connected, and two drift angles are connected by rear hydraulic jack with active in the middle part of the both sides Attacking Midfielder of lifting seat respectively；Lifting seat
Upper and lower bottom is connected with the cuboid cantilever beam perpendicular to two bottom and crawler belt arm respectively；Cantilever beam rear end is connected with deep-slotted chip breaker, connection
Place is separately connected with vertical Π shapes roller frame and support roller；Crawler belt arm front and back ends connect equipped with drive sprocket and rear sprocket wheel, the sprocket wheel of ring two respectively
Hangers chain is set with, is staggeredly connected with the hangers of the chain both sides and cuts native tooth；Lifting seat bottom is equiped with rear headstock, in it
Turbine and worm pair is equiped with, tractor rear power output shaft is connected with inter-axle shaft, and inter-axle shaft is stretched into case to be connected with turbine,
Worm screw is stretched out outside case, and outer end is connected with drive sprocket；On the crawler belt arm at lifting seat, by connecting shaft plate, active company is equipped with
The screw-conveyer-shaft vertical with the arm, connect on axle equipped with catena wheel is dialled, the sprocket wheel engages with hangers chain, the screw-conveyer-shaft of crawler belt arm both sides
It is upper to connect respectively equipped with each other backwards to the casting auger of rotation；At front-end weight block of tractor and between bearer carrier two erects wall, connect respectively
Equipped with vertical Π shapes spacing bracket and guide carriage, two bracket upper ends connect equipped with vertical Π shapes roller frame and support roller；
Backfill ridging system：By the poly- native tie ridger at the even native auger mechanism of receipts mounted in front-end weight block of tractor, rear-mounted
Composition；
Receive native auger mechanism：Connect between the framework of opening portion two of Π shape horizontal shaft brackets equipped with horizontal screw-conveyer-shaft, stretched into the middle part of the axle
In preceding headstock, connect in case interior axle and connect the receipts soil auger equipped with opposite direction rotating respectively in two side axles outside equipped with angular wheel, case；Drag
Machine drawing rear power output shaft port, which connects, is equipped with upper sprocket wheel, connects on the body below sprocket wheel equipped with lower sprocket, two sprocket wheels are connected with chain
It is dynamic；Front propeller shaft is passed through under tractor chassis, and shaft rear end is connected with lower sprocket, and front end penetrates preceding headstock, and shaft end is even equipped with
Angular wheel, engaged with the angular wheel on screw-conveyer-shaft；Connect between reamer axle and pedestal equipped with earth-retaining backplate, balancing weight and pedestal
Active to be connected, preceding hydraulic jack both ends are connected with balancing weight, pedestal respectively；
Gather native tie ridger：The overall funnel-form in front wide and rear narrow front and rear opening, by side board, framework, connecting pole, tie rod and oblique pull
Bar forms, and between splay two vertical side board upper limb front and back ends are lined up, is connected with horizontal frame respectively, connects in the middle part of forward frame
There is vertical connecting pole, batter brace is connected between the post upper end and rear frame both ends, interval is connected with drawing between front and rear portions framework
Bar, both ends of the tractor rear-mounted respectively with connecting pole, forward frame are connected.
A kind of 2. device of quick laying continuous flexible pipe as claimed in claim 1, it is characterised in that：Cantilever beam and crawler belt arm
It is spatially upper and lower corresponding relation, the line of the two and the trailing wheel of tractor two is spatially vertical relation.
A kind of 3. device of quick laying continuous flexible pipe as claimed in claim 1, it is characterised in that：Spatially cantilever beam
Rear end is located at after rear sprocket wheel.
A kind of 4. device of quick laying continuous flexible pipe as claimed in claim 1, it is characterised in that：In crawler belt arm side side
On wall, connecting shaft plate is connected with, the plate bottom perforate, active to be set with the screw-conveyer-shaft vertical with crawler belt brachium direction, the axle position is in extension
Between ear chain and crawler belt arm lower surface, on the outside of connecting shaft plate and on the screw-conveyer-shaft of crawler belt arm opposite side, fixation respectively is equiped with folder
Wheel is held, hangers chain is clamped therebetween and passed freely through.
A kind of 5. device of quick laying continuous flexible pipe as claimed in claim 1, it is characterised in that：In driver's cabin to pedestal
Between front propeller shaft be covered with sheath.
A kind of 6. device of quick laying continuous flexible pipe as claimed in claim 1, it is characterised in that：With cantilever beam front end
Connect on the bearer carrier of corresponding position equipped with breast boards.
A kind of 7. device of quick laying continuous flexible pipe as claimed in claim 1, it is characterised in that：Outside two vertical side boards
Vertical strengthening ribs are respectively connected with wall, reinforcement upper end is respectively connected with outermost tie rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502336.7U CN206815423U (en) | 2017-05-08 | 2017-05-08 | A kind of device of quick laying continuous flexible pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502336.7U CN206815423U (en) | 2017-05-08 | 2017-05-08 | A kind of device of quick laying continuous flexible pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206815423U true CN206815423U (en) | 2017-12-29 |
Family
ID=60755315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720502336.7U Expired - Fee Related CN206815423U (en) | 2017-05-08 | 2017-05-08 | A kind of device of quick laying continuous flexible pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206815423U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424489A (en) * | 2019-08-09 | 2019-11-08 | 北京天顺长城液压科技有限公司 | Nested type hidden pipe wraps up in sand pipe stabilizing device |
-
2017
- 2017-05-08 CN CN201720502336.7U patent/CN206815423U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424489A (en) * | 2019-08-09 | 2019-11-08 | 北京天顺长城液压科技有限公司 | Nested type hidden pipe wraps up in sand pipe stabilizing device |
| CN110424489B (en) * | 2019-08-09 | 2021-06-15 | 北京天顺长城液压科技有限公司 | Nested sand-wrapped concealed pipe stabilizing device |
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Granted publication date: 20171229 Termination date: 20200508 |