CN110056029A - A kind of combination drive-type dredging carriage - Google Patents
A kind of combination drive-type dredging carriage Download PDFInfo
- Publication number
- CN110056029A CN110056029A CN201910165434.XA CN201910165434A CN110056029A CN 110056029 A CN110056029 A CN 110056029A CN 201910165434 A CN201910165434 A CN 201910165434A CN 110056029 A CN110056029 A CN 110056029A
- Authority
- CN
- China
- Prior art keywords
- suction unit
- rake
- unit vehicle
- fixedly installed
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8833—Floating installations
- E02F3/885—Floating installations self propelled, e.g. ship
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Handcart (AREA)
Abstract
The present invention relates to technical field of test equipment, and disclose a kind of combination drive-type dredging carriage, including hull, the side of hull top is connected with tractor, the internal activity of tractor is connected with winch, the side of winch front and back is fixedly installed with reel, the outside of reel is fixedly connected with wirerope, the positive side of winch is fixedly connected with fixed cylinder, the side of the outside of fixed cylinder is fixedly connected with connecting rope, the side of tractor is fixedly connected with fixed block, the top movable of fixed block is connected with fixed plate, the internal activity of fixed plate is connected with bolt.The combination drive-type dredging carriage, pass through being used cooperatively between hydraulic stem, rake arms and drag head, it can be realized drag head lifting, by passing through being equipped between motor, telescopic rod, rake arms and drag head, rake arms and drag head can be driven to rotate by motor, the adjusting for realizing drag head angle, achievees the effect that inhale mud comprehensively.
Description
Technical field
The present invention relates to technical field of test equipment, specially a kind of combination drive-type dredging carriage.
Background technique
Rake suction unit vehicle is the key equipment of dredging technology equipment test platform, is used to complete rake and inhales, twists suction, grab boat
The model test of the dredging system of three classes main force ship type and crucial dredging tool.
It when carrying out dredging technology experiment using rake suction unit vehicle, needs to adjust the height and angle of rake suction nozzle, meets to Ha Noi
The test of different depth and different location needs fixed trolley when rake suction unit vehicle is tested, and prevents trolley in rake suction unit vehicle
Upper sliding influences experimental result, thus it is proposed that a kind of combination drive-type dredging carriage.
Summary of the invention
The present invention provides a kind of combination drive-type dredging carriages, have adjustable drag head height, adjust rake suction nozzle angle
Degree, realizes the test of different depth, and trolley fixed advantage when guarantee test, trolley sliding influences experiment effect when solving experiment
Fruit, the problem of cannot achieve the test of different depth.
The invention provides the following technical scheme: a kind of combination drive-type dredging carriage, including hull, the hull top
Side is connected with tractor, and the internal activity of the tractor is connected with winch, the side of the winch front and back
It is fixedly installed with reel, the outside of the reel is fixedly connected with wirerope, and the positive side of winch is fixedly connected with
Fixed cylinder, the side of the outside of the fixed cylinder are fixedly connected with connecting rope, and the side of the tractor is fixedly connected with fixation
Block, the top movable of the fixed block are connected with fixed plate, and the internal activity of the fixed plate is connected with bolt, the hull top
The other side in portion is connected with rake suction unit vehicle, and the top movable of the rake suction unit vehicle is connected with trolley, the rake suction unit roof
The side in portion is fixedly installed with control room, and the Corner Strapped of the trolley is equipped with away wheel, it is described walk wheel ex-ternal transmission connection
There is chain, the side of the rake suction unit vehicle is fixedly installed with fixed case, motor, institute are fixedly installed at the top of the fixed case
It states and is fixedly connected with hydraulic stem on the output shaft of motor, the bottom of the hydraulic stem is fixedly installed with rake arms, the rake arms
One end is fixedly connected with drag head, and riser is fixedly mounted in the inside of the rake suction unit car bottom plate side, and the side of the riser is fixed
Spring is installed, the side of the spring is fixedly installed with movable plate, and the side of the movable plate is fixedly connected with snap-gauge, described
Level board is fixedly installed at the top of movable plate.
Selected, the quantity of the reel is two, the fixed company in inside that the outside of two reels passes through wirerope
It connects.
Selected, the inside of the fixed block offers circular hole, the internal activity of the circular hole opened up inside the fixed block
It is connected with bolt.
Selected, driving walking mechanism, the rake are fixedly installed on the main beam of the rake suction unit vehicle carriage four corners
The inside of suction unit vehicle is fixedly installed with horizontal guide wheel mechanism, and the inside of the rake suction unit vehicle is fixedly installed with braking system, described
The inside of rake suction unit vehicle is fixedly installed with the electric-control system that tests the speed.
It is selected, it is described walk wheel quantity be four, the outside that wheel is walked described in four is flexibly connected by the inside of chain.
Selected, the inside of the fixed case offers elongated slot, the internal activity of the elongated slot opened up inside the fixed case
It is connected with hydraulic stem.
Selected, the inside of the rake suction unit car bottom plate side offers loose slot, opens inside the rake suction unit car bottom plate
If the internal activity of loose slot be connected with snap-gauge, the outside of described snap-gauge one end is connect with the internal activity for walking wheel.
Selected, the side at the top of the level board is connected with the bail extended to inside rake suction unit car bottom plate, institute
It states the side at the top of rake suction unit car bottom plate and offers through-hole.
The present invention have it is following the utility model has the advantages that
1, the combination drive-type dredging carriage can be realized rake by being used cooperatively between hydraulic stem, rake arms and drag head
Head lifting, by the way that rake arms can be driven by motor by being equipped between motor, telescopic rod, rake arms and drag head
It is rotated with drag head, realizes the adjusting of drag head angle, achieve the effect that inhale mud comprehensively.
2, combination drive-type dredging carriage, by harrowing suction unit vehicle, walking the cooperation between wheel, snap-gauge, movable plate and spring
Trolley can be effectively locked on rake suction unit vehicle by setting, while by between rake suction unit vehicle, movable plate, spring and bail
It is used cooperatively, realizes that trolley moves on rake suction unit car bottom plate.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the side view of trolley of the present invention;
Fig. 3 is partial enlargement diagram at A of the invention.
In figure: 1, hull;2, tractor;3, winch;4, reel;5, wirerope;6, fixed cylinder;7, connecting rope;8, fixed
Block;9, fixed plate;10, bolt;11, suction unit vehicle is harrowed;12, trolley;13, control room;14, wheel is walked;15, chain;16, fixed case;
17, motor;18, hydraulic stem;19, rake arms;20, drag head;21, riser;22, spring;23, movable plate;24, snap-gauge;25, horizontal
Plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3, a kind of combination drive-type dredging carriage, including hull 1 are please referred to, the side at 1 top of hull is flexibly connected
There is tractor 2, the internal activity of tractor 2 is connected with winch 3, and the side of 3 front and back of winch is fixedly installed with reel
4, the quantity of reel 4 is two, and the outside of two reels 4 is fixedly connected by the inside of wirerope 5, passes through reel 4, wirerope
Being used cooperatively between 5 and tractor 2 can be such that two winches 3 move synchronously, and the outside of reel 4 is fixedly connected with steel
Cord 5, the positive side of winch 3 are fixedly connected with fixed cylinder 6, and the side of the outside of fixed cylinder 6 is fixedly connected with connecting rope 7,
The side of tractor 2 is fixedly connected with fixed block 8, and the inside of fixed block 8 offers circular hole, the circular hole opened up inside fixed block 8
Internal activity be connected with bolt 10, pass through fixed block 8, bolt 10, fixed plate 9, rake suction unit vehicle 11 and tractor 2 between matching
Setting is closed, rake suction unit vehicle 11 and tractor 2 can be connected, while easy to disassemble, the top movable of fixed block 8 is connected with fixation
Plate 9, the internal activity of fixed plate 9 are connected with bolt 10, and the other side at 1 top of hull is connected with rake suction unit vehicle 11, and rake is inhaled
The inside of 11 bottom plate side of trolley offers loose slot, the internal activity connection for the loose slot that rake 11 base plate interior of suction unit vehicle opens up
There is snap-gauge 24, the outside of 24 one end of snap-gauge is connect with the internal activity for walking wheel 14, by snap-gauge 24, rake suction unit vehicle 11 and walks wheel 14
Between be used cooperatively, can be effectively fixed by trolley 12 in simulated experiment, harrow the main beam of 11 vehicle frame four corners of suction unit vehicle
On be fixedly installed with driving walking mechanism, the inside of rake suction unit vehicle 11 is fixedly installed with horizontal guide wheel mechanism, rake suction unit vehicle 11
Inside is fixedly installed with braking system, and the inside of rake suction unit vehicle 11 is fixedly installed with the electric-control system that tests the speed, by rake suction unit vehicle 11,
Horizontal guide wheel mechanism, braking system, being equipped between the electric-control system that tests the speed that drive walking mechanism can guarantee to harrow suction unit
Vehicle 11 works normally, and the top movable of rake suction unit vehicle 11 is connected with trolley 12, and the side at 11 top of rake suction unit vehicle is fixedly installed with
Control room 13, the Corner Strapped of trolley 12 are equipped with away wheel 14, and the quantity for walking wheel 14 is four, and four outsides for walking wheel 14 pass through
The inside of chain 15 is flexibly connected, by walking wheel 14, chain 15, directive wheel and inverse buckling wheel, solve different simulation tests and
The different tests stage back, up, self weight etc. respectively to component, the ex-ternal transmission for walking wheel 14 is connected with chain 15, harrows suction unit vehicle
11 side is fixedly installed with fixed case 16, and the inside of fixed case 16 offers elongated slot, the elongated slot opened up inside fixed case 16
Internal activity is connected with hydraulic stem 18, passes through being equipped between motor 17, hydraulic stem 18, rake arms 19 and drag head 20, energy
It enough realizes that drag head 20 is gone up and down by hydraulic stem 18, while driving rake arms 19 to rotate by motor 17, realize 20 angle of drag head
It adjusts, the top of fixed case 16 is fixedly installed with motor 17, hydraulic stem 18, liquid are fixedly connected on the output shaft of motor 17
The bottom of compression bar 18 is fixedly installed with rake arms 19, and one end of rake arms 19 is fixedly connected with drag head 20, harrows 11 bottom plate side of suction unit vehicle
Inside riser 21 is fixedly mounted, the side of riser 21 is fixedly installed with spring 22, and the side of spring 22 is fixedly installed with activity
Plate 23, the side of movable plate 23 are fixedly connected with snap-gauge 24, and the top of movable plate 23 is fixedly installed with level board 25, level board 25
The side at top is connected with the bail for extending to rake 11 base plate interior of suction unit vehicle, and the side harrowed at the top of 11 bottom plate of suction unit vehicle is opened
It is small to can be improved by being equipped between rake suction unit vehicle 11, level board 25, movable plate 23 and through-hole for fixation equipped with through-hole
The stability of vehicle 12.
Working principle: in use, opening motor 17, motor 17 drives hydraulic stem 18 to rotate, and hydraulic stem 18 drives rake
The rotation of arm 19, rake arms 19 drive drag head 20 to rotate, and hydraulic stem 18 drives drag head 20 to go up and down, and when fixing trolley 12, extract bail, bullet out
22 Compressive activities plate 23 of spring, movable plate 23 squeeze snap-gauge 24, and snap-gauge 24 sticks into away inside wheel 14.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.Simultaneously in the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length
Degree ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner",
The orientation or positional relationship of the instructions such as "outside", " clockwise ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, only
It is that for the convenience of describing the present invention and simplifying the description, rather than the equipment of indication or suggestion meaning or element must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of combination drive-type dredging carriage, including hull (1), it is characterised in that: the side activity at the top of the hull (1)
It is connected with tractor (2), the internal activity of the tractor (2) is connected with winch (3), winch (3) front and back
Side is fixedly installed with reel (4), and the outside of the reel (4) is fixedly connected with wirerope (5), winch (3) front
Side be fixedly connected with fixed cylinder (6), the side of the outside of the fixed cylinder (6) is fixedly connected with connecting rope (7), described to lead
The side for drawing vehicle (2) is fixedly connected with fixed block (8), and the top movable of the fixed block (8) is connected with fixed plate (9), described
The internal activity of fixed plate (9) is connected with bolt (10), and the other side at the top of the hull (1) is connected with rake suction unit vehicle
(11), the top movable of rake suction unit vehicle (11) is connected with trolley (12), and the side at the top of rake suction unit vehicle (11) is fixed
It is equipped with control room (13), the Corner Strapped of the trolley (12) is equipped with away wheel (14), described to walk to take turns the ex-ternal transmission of (14)
It is connected with chain (15), the side of rake suction unit vehicle (11) is fixedly installed with fixed case (16), the top of the fixed case (16)
Portion is fixedly installed with motor (17), is fixedly connected with hydraulic stem (18) on the output shaft of the motor (17), described hydraulic
The bottom of bar (18) is fixedly installed with rake arms (19), and one end of the rake arms (19) is fixedly connected with drag head (20), and the rake is inhaled
Riser (21) are fixedly mounted in the inside of trolley (11) bottom plate side, and the side of the riser (21) is fixedly installed with spring (22),
The side of the spring (22) is fixedly installed with movable plate (23), and the side of the movable plate (23) is fixedly connected with snap-gauge
(24), level board (25) are fixedly installed at the top of the movable plate (23).
2. a kind of combination drive-type dredging carriage according to claim 1, it is characterised in that: the quantity of the reel (4)
It is two, the outside of two reels (4) on the inside of wirerope (5) by being fixedly connected.
3. a kind of combination drive-type dredging carriage according to claim 1, it is characterised in that: the fixed block (8) it is interior
Portion offers circular hole, and the internal activity of the circular hole opened up inside the fixed block (8) is connected with bolt (10).
4. a kind of combination drive-type dredging carriage according to claim 1, it is characterised in that: rake suction unit vehicle (11) vehicle
Driving walking mechanism is fixedly installed on the main beam of frame four corners, the inside of rake suction unit vehicle (11) is fixedly installed with level
Guide wheel mechanism, the inside of rake suction unit vehicle (11) are fixedly installed with braking system, and the inside of rake suction unit vehicle (11) is fixed
The electric-control system that tests the speed is installed.
5. a kind of combination drive-type dredging carriage according to claim 1, it is characterised in that: described to walk to take turns the quantity of (14)
It is four, the outside that wheel (14) is walked described in four is flexibly connected by the inside of chain (15).
6. a kind of combination drive-type dredging carriage according to claim 1, it is characterised in that: the fixed case (16) it is interior
Portion offers elongated slot, and the internal activity of the elongated slot opened up inside the fixed case (16) is connected with hydraulic stem (18).
7. a kind of combination drive-type dredging carriage according to claim 1, it is characterised in that: rake suction unit vehicle (11) bottom
The inside of plate side offers loose slot, and the internal activity for the loose slot that described rake suction unit vehicle (11) base plate interior opens up is connected with
Snap-gauge (24), the outside of described snap-gauge (24) one end are connect with the internal activity for walking wheel (14).
8. a kind of combination drive-type dredging carriage according to claim 1, it is characterised in that: at the top of the level board (25)
Side be connected with extend to rake suction unit vehicle (11) base plate interior bail, it is described rake suction unit vehicle (11) bottom plate at the top of one
Side offers through-hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910165434.XA CN110056029A (en) | 2019-03-05 | 2019-03-05 | A kind of combination drive-type dredging carriage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910165434.XA CN110056029A (en) | 2019-03-05 | 2019-03-05 | A kind of combination drive-type dredging carriage |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110056029A true CN110056029A (en) | 2019-07-26 |
Family
ID=67316608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910165434.XA Pending CN110056029A (en) | 2019-03-05 | 2019-03-05 | A kind of combination drive-type dredging carriage |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110056029A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111764454A (en) * | 2020-06-23 | 2020-10-13 | 浙江满洋船务工程有限公司 | Underwater emergency dredging treatment equipment |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR0109819A (en) * | 2000-04-05 | 2003-01-21 | Gto Subsea As | Method and device for moving underwater rocks and sediments |
CN204023662U (en) * | 2014-04-21 | 2014-12-17 | 中国石油化工股份有限公司 | A kind of intelligent pontoon desilting mud machine |
CN106245696A (en) * | 2016-08-17 | 2016-12-21 | 武汉理工大学 | Scalable dredging system based on spiral operating type |
CN207063020U (en) * | 2017-08-07 | 2018-03-02 | 李洪斌 | A kind of dredging device for water conservancy projects |
CN108203998A (en) * | 2018-02-28 | 2018-06-26 | 无锡市翱宇特新科技发展有限公司 | A kind of high silt removing dredging device of service efficiency |
CN108589811A (en) * | 2018-06-26 | 2018-09-28 | 裘尧云 | A kind of broken rock strand suction ship |
CN208069875U (en) * | 2018-04-02 | 2018-11-09 | 山西机电职业技术学院 | A kind of bicycle parking device |
CN108797688A (en) * | 2018-06-27 | 2018-11-13 | 安徽佳明环保科技股份有限公司 | A kind of drag head device of adjustable rake mud depth |
CN208415344U (en) * | 2018-03-21 | 2019-01-22 | 浙江大学苏州工业技术研究院 | It is a kind of for cleaning the underwater desilting Operation Van of aeration head device |
CN109322341A (en) * | 2018-09-27 | 2019-02-12 | 四川达虹宇建筑工程有限公司 | A kind of hydraulic engineering silt displacement device |
-
2019
- 2019-03-05 CN CN201910165434.XA patent/CN110056029A/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR0109819A (en) * | 2000-04-05 | 2003-01-21 | Gto Subsea As | Method and device for moving underwater rocks and sediments |
CN204023662U (en) * | 2014-04-21 | 2014-12-17 | 中国石油化工股份有限公司 | A kind of intelligent pontoon desilting mud machine |
CN106245696A (en) * | 2016-08-17 | 2016-12-21 | 武汉理工大学 | Scalable dredging system based on spiral operating type |
CN207063020U (en) * | 2017-08-07 | 2018-03-02 | 李洪斌 | A kind of dredging device for water conservancy projects |
CN108203998A (en) * | 2018-02-28 | 2018-06-26 | 无锡市翱宇特新科技发展有限公司 | A kind of high silt removing dredging device of service efficiency |
CN208415344U (en) * | 2018-03-21 | 2019-01-22 | 浙江大学苏州工业技术研究院 | It is a kind of for cleaning the underwater desilting Operation Van of aeration head device |
CN208069875U (en) * | 2018-04-02 | 2018-11-09 | 山西机电职业技术学院 | A kind of bicycle parking device |
CN108589811A (en) * | 2018-06-26 | 2018-09-28 | 裘尧云 | A kind of broken rock strand suction ship |
CN108797688A (en) * | 2018-06-27 | 2018-11-13 | 安徽佳明环保科技股份有限公司 | A kind of drag head device of adjustable rake mud depth |
CN109322341A (en) * | 2018-09-27 | 2019-02-12 | 四川达虹宇建筑工程有限公司 | A kind of hydraulic engineering silt displacement device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111764454A (en) * | 2020-06-23 | 2020-10-13 | 浙江满洋船务工程有限公司 | Underwater emergency dredging treatment equipment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7168718B2 (en) | Lift crane with improved movable counterweight | |
EP2497740B1 (en) | Movable rear counterweight device for crawler crane | |
US8756839B2 (en) | Rope shovel with curved boom | |
EP2530046B1 (en) | Stepless luffing mechanism for super-lifting counterweight of crawler crane and operating method thereof | |
EP2589564A1 (en) | Mobile lift crane with variable position counterweight | |
CN104555760B (en) | Telescopic boom structure and engineering vehicle | |
CN201953311U (en) | All-hydraulic rubber-tyred rock drilling anchoring boring rig | |
CN110056029A (en) | A kind of combination drive-type dredging carriage | |
CN203716210U (en) | Telescopic amphibious dual-purpose track hydraulic excavator capable of freely lifting | |
CN209067105U (en) | A kind of digital multifunctional mounted drilling rig | |
CN110775805B (en) | Hoisting device of crawler crane | |
CN109339702A (en) | A kind of digital multifunctional mounted drilling rig | |
CN206501926U (en) | A kind of all-around mobile formula ladder truck | |
CN102910541A (en) | Ocean platform crane with buggy luffing mechanism | |
CN206616501U (en) | Sucker lifting and swinging mechanism | |
CN104847283B (en) | Cluster well drilling module drilling rod ramp, ocean | |
CN207774741U (en) | A kind of luffing device and aerial work platform with mobile counterweight | |
CN210189787U (en) | Mobile platform parallel robot | |
CN205469366U (en) | Be used for full all terrain vehicle platform trailer of delivery | |
CN208918475U (en) | A kind of rotary drilling rig and its jib lubbing mechanism | |
CN113464199A (en) | Thin coal seam shovel plate type carrier adopting front pitching bridge and multi-connecting-rod linkage | |
CN203755363U (en) | Digging forklift truck and support component used for digging forklift truck | |
CN205367591U (en) | Small -size snatch car in oil field | |
CN204753673U (en) | Road puncher | |
CN205370440U (en) | Small -size earth anchor car of beating in oil field |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190726 |
|
RJ01 | Rejection of invention patent application after publication |