CN218492595U - Rapid dredging equipment for river channel and ditch - Google Patents

Rapid dredging equipment for river channel and ditch Download PDF

Info

Publication number
CN218492595U
CN218492595U CN202222273456.8U CN202222273456U CN218492595U CN 218492595 U CN218492595 U CN 218492595U CN 202222273456 U CN202222273456 U CN 202222273456U CN 218492595 U CN218492595 U CN 218492595U
Authority
CN
China
Prior art keywords
silt
ditches
falling
type
subassembly
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.)
Active
Application number
CN202222273456.8U
Other languages
Chinese (zh)
Inventor
温婷婷
韩占平
崔方方
李彩云
李月华
李晓楠
冯珊
姬宏连
曹志斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yellow River Construction Engineering Group Co ltd
Original Assignee
Yellow River Construction Engineering Group Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yellow River Construction Engineering Group Co ltd filed Critical Yellow River Construction Engineering Group Co ltd
Priority to CN202222273456.8U priority Critical patent/CN218492595U/en
Application granted granted Critical
Publication of CN218492595U publication Critical patent/CN218492595U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model discloses a hydraulic engineering technical field's a river course, quick desilting equipment of irrigation canals and ditches, including the fuel automobile body, the channel steel section of bottom four corners installation universal wheel, silt holds the case, the silt pump, rotation mechanism, the bracing piece, electric putter, threaded rod thread bush subassembly, miniature high-speed motor, volute fan wheel subassembly, the electric mortiser lock, the toper friction wheel, the outlet duct, take out silt pipe and rubber hose, through the fuel automobile body with equipment transportation to the river course, near the irrigation canals and ditches, miniature high-speed motor cooperation volute fan wheel subassembly and outlet duct are given vent to anger and are blown silt, it takes out silt pipe more easily by silt pump cooperation, rubber hose and silt hold the case and extract and hold, electric putter and threaded rod thread bush subassembly are flexible, and can be with channel steel section adjustment direction and place on the fuel automobile body with rotation mechanism cooperation, convenient transportation, the device can remove, the quick start work of being convenient for, it is suitable for the occasion abundance, the practicality has.

Description

Rapid dredging equipment for river channel and ditch
Technical Field
The utility model relates to a hydraulic engineering technical field specifically is a quick desilting equipment of river course, irrigation canals and ditches.
Background
Water is a valuable resource essential to human production and life, but the naturally-existing state of the water does not completely meet the needs of human beings, and only water conservancy projects are built to control water flow, prevent flood disasters and adjust and distribute water quantity so as to meet the needs of human life and production on water resources, and the water conservancy projects need to build different types of hydraulic buildings such as river channels and ditches and the like so as to achieve the aims of the water conservancy projects. Deposit easily in hydraulic structures such as river course, irrigation canals and ditches and deposit matters such as silt and rubbish, influence its normal work, restricted the comprehensive utilization of water resource simultaneously, consequently need the staff regularly to carry out the desilting to river course, irrigation canals and ditches often, still rely on artifical clearance under most of the circumstances at present, and the work load is huge, consuming time and wasting power, and efficiency is lower, so need set up mechanized desilting device, CN214614292U for example discloses a quick desilting device of hydraulic engineering, include: the walking track is fixedly arranged on the bank side; a traveling vehicle traveling on the traveling rail; the follow-up vehicle is provided with a connecting structure so as to be fixed on the traveling vehicle and move along with the traveling vehicle; and the dredging mechanism is arranged on the traveling crane to carry out dredging work. This device can realize quick desilting, uses manpower sparingly, improves desilting efficiency, but need lay the special track, and the preparation volume before using is great, and the practicality is relatively poor, based on this, the utility model designs a quick desilting equipment of river course, irrigation canals and ditches to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick desilting equipment of river course, irrigation canals and ditches to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a quick desilting equipment in river course, irrigation canals and ditches, includes the channel steel section of fuel automobile body and bottom four corners installation universal wheel, install silt through the pipe connection on the frame front side plane of fuel automobile body and hold case and silt pump, be fixed with rotation mechanism on the frame middle part plane of fuel automobile body, rotation mechanism rotates from top to bottom installs bracing piece and electric putter, electric putter's flexible end rotates with the outer wall bottom of bracing piece to be connected, the outer end of bracing piece is fixed with threaded rod thread bush subassembly, the threaded rod of threaded rod thread bush subassembly rotates to run through and is connected with channel-section steel section lateral wall, miniature high speed motor and volute fan wheel subassembly that is connected through sprocket chain subassembly are installed to the inner chamber of channel steel section, the inner wall of channel steel section is fixed with the electric mortiser lock, the bolt outer wall of electric mortiser lock rotates installs toper friction wheel, the outer end of threaded rod thread bush subassembly and the equal fixed cover of motor shaft end of miniature high speed motor are equipped with toper friction wheel, and three toper friction wheel extrudees the laminating each other, volute fan wheel subassembly installs the air outlet port and runs through the channel steel section and extends to silt hose connection in the silt pump.
Preferably, an L-shaped support is installed on a frame plane of the fuel vehicle body, a small winding roller and a large winding roller are respectively installed on the upper portion and the lower portion of the inner wall of the L-shaped support in a rotating mode through a supporting seat and a spiral spring, and a rotary electric connector and a sealing rotary connector are respectively installed at the outer ends of roller bodies of the small winding roller and the large winding roller.
Preferably, a lead is wound on the small winding roller, one end of the lead is connected with a storage battery of the fuel vehicle body, the other end of the lead is connected with the sludge pump, the swing mechanism, the electric push rod, the miniature high-speed motor and the electric mortise lock, and a rubber hose is wound on the outer wall of the large winding roller.
Preferably, the outer wall of the end part of the air outlet pipe is uniformly provided with air outlet through holes.
Preferably, rotation mechanism is including the type of falling T cylinder piece, the type of falling T cylinder piece from the top down is provided with the notch cuttype blind hole, the even interval is provided with the installation through-hole all around in the surface outside of the type of falling T cylinder piece, the type of falling T rotor piece that the top outside set up the sheared edge is installed through the heavy-calibre bearing protrusion in the middle part of the inner chamber of notch cuttype blind hole, the notch cuttype blind hole top has the clamping ring through the bolt fastening, the bottom of clamping ring and the inner chamber bottom of notch cuttype blind hole are circular evenly distributed and are fixed with the universal ball of laminating type of falling T rotor piece upper and lower surface, be provided with the worm gear subassembly between the bottom central authorities of the type of falling T rotor piece and the outside of the type of falling T cylinder piece, the surface below of the type of falling T cylinder piece is fixed with the big moment of torsion motor of being connected with the worm outer end.
Preferably, a tensioner matched with a chain of the chain wheel and chain assembly is fixed at the bottom of the inner cavity of the channel steel section.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a fuel automobile body transports the equipment the river course, near the irrigation canals and ditches, miniature high-speed motor cooperation volute casing wind wheel subassembly and outlet duct give vent to anger to silt and swell, it is taken out silt pipe more easily by silt pump cooperation, rubber hose and silt hold the case and extract and hold, electric putter and threaded rod thread bush subassembly are flexible, and can be with channel-section steel section adjustment direction and place on the fuel automobile body with the rotation mechanism cooperation, the convenient transportation, so the device can remove at will, the quick start work of being convenient for, it is suitable for the occasion abundant, and has the practicality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the installation of the large and small winding rollers of the present invention;
fig. 3 is a schematic view of the swing mechanism in fig. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
1-fuel truck body, 2-sludge containing tank, 3-sludge pump, 4-slewing mechanism, 5-support rod, 6-electric push rod, 7-threaded rod and threaded sleeve component, 8-channel steel section, 9-miniature high-speed motor, 10-volute air wheel component, 11-electric mortise lock, 12-conical friction wheel, 13-sludge pumping pipe, 14-rubber hose, 15-air outlet pipe, 16-L-shaped support, 17-small winding roller, 18-large winding roller, 19-rotary electric connector, 20-sealed rotary connector, 40-inverted T-shaped cylindrical block, 41-installation through hole, 42-inverted T-shaped rotary block, 43-pressing ring, 44-universal ball, 45-worm gear component and 46-large torque forward and reverse rotation motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1, the present invention provides a technical solution: a rapid dredging device for river channels and ditches comprises a fuel vehicle body 1 and a channel steel section 8 with universal wheels arranged at four corners of the bottom, wherein the fuel vehicle body 1 is a commercial diesel vehicle without a cargo compartment, a sludge containing tank 2 and a sludge pump 3 which are connected through a pipeline are arranged on the front side plane of a vehicle frame of the fuel vehicle body 1, a swing mechanism 4 is fixed on the middle plane of the vehicle frame of the fuel vehicle body 1 through bolts, a support rod 5 and an electric push rod 6 are rotatably arranged on the upper part and the lower part of the swing mechanism 4 through a U-shaped seat and a rotating shaft, the telescopic end of the electric push rod 6 is rotatably connected with the bottom of the outer wall of the support rod 5 through a spherical hinge, a threaded rod thread sleeve component 7 is fixed at the outer end of the support rod 5, a threaded rod of the threaded rod thread sleeve component 7 is rotatably penetrated through a bearing to be connected with the side wall of the channel steel section 8, a high-speed micro motor 9 and a volute casing wind wheel component 10 which are connected through a chain component are arranged in the inner cavity of the channel steel section 8, wherein, the miniature high-speed motor 9 is vertically installed, the bottom of the inner cavity of the channel steel section 8 is fixed with a tensioner matched with a chain of the chain wheel chain component, the chain is prevented from loosening, the transmission efficiency is improved, meanwhile, the inner wall of the channel steel section 8 is fixed with an electric mortise lock 11, the outer wall of the bolt of the electric mortise lock 11 is rotatably installed with a conical friction wheel 12 through a bearing, the outer end of the threaded rod thread bushing component 7 and the end part of a motor shaft of the miniature high-speed motor 9 are fixedly sleeved with the conical friction wheel 12, the three conical friction wheels 12 are mutually extruded and jointed in a right angle, the air outlet of the volute casing air wheel component 10 is provided with an air outlet pipe 15 which penetrates through the channel steel section 8 and extends into silt, the outer wall of the end part of the air outlet pipe 15 is uniformly provided with air outlet through holes, the air outlet is smooth, and a silt pumping pipe 13 which extends into the silt is fixedly penetrated above the outer side of the channel steel section 8, the inner end of the sludge pumping pipe 13 is connected with the inlet end of the sludge pump 3 through a rubber hose 14.
Referring to fig. 2, an L-shaped bracket 16 is mounted on a frame plane of the fuel vehicle body 1, a small winding roller 17 and a large winding roller 18 are respectively rotatably mounted on an inner wall of the L-shaped bracket 16 up and down through a support base and a spiral spring, the spiral spring is sleeved outside a roller shaft, two ends of the spiral spring are respectively fixed with the support base and an outer wall of the roller shaft, and a rotary electric connector 19 and a sealed rotary electric connector 20 are respectively mounted at outer ends of roller bodies of the small winding roller 17 and the large winding roller 18;
wherein, the winding has the wire on the little winding up roller 17, and the one end of wire is connected with the storage battery of fuel automobile body 1, and the other end is connected with silt pump 3, rotation mechanism 4, electric putter 6, miniature high-speed motor 9 and electric mortiser lock 11, and the winding of 18 outer walls of big winding up roller has rubber hose 14, specifically is: one end of a wire wound and fixed on the small winding roll 17 is connected with a rotary electric connector 19, the other end of the rotary electric connector 19 is connected with a battery jar of the fuel vehicle body 1 through the wire, the other end of the wire on the small winding roll 17 is connected with the sludge pump 3, the swing mechanism 4, the electric push rod 6, the micro high-speed motor 9 and the electric mortise lock 11 through a transformer and a switch so as to enable the small winding roll to work normally, the prior art is provided, the end part of a rubber hose 14 wound on the large winding roll 18 is connected with a sealed rotary connector 20, the other end of the sealed rotary connector 20 is connected with the sludge pump 3 through a pipeline, when the position of the channel steel section 8 is changed, the wire and the rubber hose 14 are in a tensioned state, and when the electric push rod 6 and the threaded rod thread sleeve assembly 7 shrink, the wire and the rubber hose 14 are automatically wound under the action of a spiral spring.
Referring to fig. 3, the revolving mechanism 4 includes an inverted T-shaped cylindrical block 40, the inverted T-shaped cylindrical block 40 is provided with stepped blind holes from top to bottom, mounting through holes 41 are uniformly arranged around the outer side of the surface of the inverted T-shaped cylindrical block 40 at intervals, an inverted T-shaped rotating block 42 with a shear port at the outer side of the top is convexly arranged in the middle of the inner cavity of the stepped blind hole through a large-diameter bearing, a clamping ring 43 is fixed at the top end of the stepped blind hole through a bolt, universal balls 44 attached to the upper and lower surfaces of the inverted T-shaped rotating block 42 are uniformly distributed and fixed at the bottom of the clamping ring 43 and the bottom of the inner cavity of the stepped blind hole in a circular shape, a worm gear assembly 45 is arranged between the center of the bottom of the inverted T-shaped rotating block 42 and the outer side of the inverted T-shaped cylindrical block 40, the worm wheel is fixed at the bottom of the inverted T-shaped rotating block 42, the worm rotates to penetrate through and is installed below the front surface and the back surface of the inverted T-shaped cylindrical block 40, a large-torque forward and reverse rotating motor 46 connected with the outer end of the worm is fixed below the outer surface of the inverted T-shaped cylindrical block 40, when the electric power steering gear is used, the end portions of the support rod 5 and the electric push rod 6 rotate and are installed in the shearing port, the large-torque forward and reverse rotating motor 46 is connected with a storage battery of the fuel vehicle body 1 through a forward and reverse switch, a transformer and a wire and drives the worm to rotate, the worm drives the worm wheel and the inverted T-shaped rotating block 42 to rotate, and the inverted T-shaped rotating block 42 is limited through an upper universal ball 44 and a lower universal ball 44 and a large-caliber bearing and can only horizontally rotate.
Use the utility model relates to a during quick desilting equipment of river course, irrigation canals and ditches: the method comprises the steps of firstly driving a fuel vehicle body 1 to a river channel and near a ditch, then switching on a power supply of an electric push rod 6, enabling a support rod 5 to rotate upwards, then switching on the power supply of a rotary mechanism 4, enabling a threaded rod thread sleeve component 7 and a channel steel section 8 to be close to the river channel and the ditch, and finally contracting through the electric push rod 6, enabling the channel steel section 8 to be lapped on the river channel and the inner wall of the ditch through universal wheels, enabling an electric mortise lock 11 to be connected with electricity, enabling three conical friction wheels 12 to be mutually attached, enabling a miniature high-speed motor 9 to drive the threaded rod thread sleeve component 7 to extend, enabling an air outlet pipe 15 and a sludge pumping pipe 13 to be inserted into sludge, enabling the miniature high-speed motor 9 to be matched with a volute air wheel component 10 and an air outlet pipe 15 to conduct air outlet and blowing on the sludge, enabling the sludge to be more easily pumped and contained by a sludge pump 3 matched with the sludge pumping pipe 13, a rubber hose 14 and a sludge containing box 2, and enabling the whole sludge to move randomly to conduct quick sludge removal.
It is worth noting that: the electric push rod, the miniature high-speed motor, the electric mortise lock, the rotary electric connector, the sealed rotary connector and the large-torque forward and reverse motor which are adopted by the scheme are all products sold in the market, belong to the prior mature technology, and are not repeated for the electric connection relationship, the specific circuit structure, the product model and the using and connecting method.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides a quick desilting equipment in river course, irrigation canals and ditches, includes channel-section steel section (8) of fuel automobile body (1) and bottom four corners installation universal wheel, its characterized in that: install on the frame front side plane of fuel automobile body (1) silt through the pipe connection and hold case (2) and silt pump (3), be fixed with rotation mechanism (4) on the frame middle part plane of fuel automobile body (1), rotation mechanism (4) is from top to bottom installed bracing piece (5) and electric putter (6), the flexible end of electric putter (6) rotates with the outer wall bottom of bracing piece (5) to be connected, the outer end of bracing piece (5) is fixed with threaded rod thread bush subassembly (7), the threaded rod of threaded rod thread bush subassembly (7) rotates to run through and is connected with channel-section steel section (8) lateral wall, miniature high-speed motor (9) and volute wind wheel subassembly (10) connected through the sprocket chain subassembly are installed to the inner chamber of channel-section (8), the inner wall of channel-section steel (8) is fixed with electric mortiser lock (11), the bolt outer wall of bolt lock (11) rotates and installs toper friction wheel (12), the threaded rod outer end of channel-section (7) and the motor shaft end portion of miniature high-section (9) is fixed cover and is equipped with toper friction wheel (12) and the silt wheel (12) is extended to the vortex groove (8) of exhaust outlet duct (13) and the extrusion groove (8) the outer side of the vortex groove (8) is installed and the vortex groove (13) is extended to the vortex groove of exhaust pipe (12) the vortex groove (8) of exhaust pipe (12) of exhaust outlet pipe (13) and run through toper friction wheel assembly (12) The inner end of the sludge pumping pipe (13) is connected with the inlet end of the sludge pump (3) through a rubber hose (14).
2. The rapid dredging equipment for river channels and ditches as claimed in claim 1, wherein: install L type support (16) on the frame plane of fuel automobile body (1), the inner wall of L type support (16) rotates respectively through supporting seat and spiral clockwork spring from top to bottom and installs little winding up roller (17) and big winding up roller (18), rotary electric joint (19) and sealed rotary joint (20) are installed respectively to the roll body outer end of little winding up roller (17) and big winding up roller (18).
3. The rapid dredging equipment for river channels and ditches as claimed in claim 2, wherein: the small winding roll (17) is wound with a lead, one end of the lead is connected with a storage battery of the fuel vehicle body (1), the other end of the lead is connected with the sludge pump (3), the swing mechanism (4), the electric push rod (6), the micro high-speed motor (9) and the electric mortise lock (11), and the outer wall of the large winding roll (18) is wound with a rubber hose (14).
4. The rapid dredging equipment for river channels and ditches as claimed in claim 1, wherein: and air outlet through holes are uniformly formed in the outer wall of the end part of the air outlet pipe (15).
5. The rapid dredging equipment for river channels and ditches as claimed in claim 1, wherein: rotation mechanism (4) are including type of falling T cylinder piece (40), type of falling T cylinder piece (40) from the top down is provided with the notch cuttype blind hole, the surface outside of type of falling T cylinder piece (40) is evenly spaced all around and is provided with installation through-hole (41), the type of falling T turning block (42) that the top outside set up the sheared edge is installed through heavy-calibre bearing protrusion in the middle part of the inner chamber of notch cuttype blind hole, notch cuttype blind hole top has clamping ring (43) through the bolt fastening, the bottom of clamping ring (43) and the inner chamber bottom of notch cuttype blind hole are circular evenly distributed and are fixed with universal ball (44) of laminating type of falling T turning block (42) upper and lower surface, be provided with worm wheel assembly (45) between the outside of the bottom central authorities of type of falling T turning block (42) and type of falling T cylinder piece (40), the surface below of type of falling T cylinder piece (40) is fixed with the big moment of torsion motor (46) of being connected with the worm outer end.
6. The rapid dredging equipment for river channels and ditches as claimed in claim 1, wherein: and a tensioner matched with a chain of the chain wheel and chain assembly is fixed at the bottom of the inner cavity of the channel steel section (8).
CN202222273456.8U 2022-08-29 2022-08-29 Rapid dredging equipment for river channel and ditch Active CN218492595U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222273456.8U CN218492595U (en) 2022-08-29 2022-08-29 Rapid dredging equipment for river channel and ditch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222273456.8U CN218492595U (en) 2022-08-29 2022-08-29 Rapid dredging equipment for river channel and ditch

Publications (1)

Publication Number Publication Date
CN218492595U true CN218492595U (en) 2023-02-17

Family

ID=85188010

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222273456.8U Active CN218492595U (en) 2022-08-29 2022-08-29 Rapid dredging equipment for river channel and ditch

Country Status (1)

Country Link
CN (1) CN218492595U (en)

Similar Documents

Publication Publication Date Title
CN218492595U (en) Rapid dredging equipment for river channel and ditch
CN215105126U (en) Hydraulic engineering management sluice control valve
CN214332144U (en) Wisdom garden is with stranger monitoring alarm device
CN211343201U (en) Combined array type small wave power generation device
CN109404656B (en) Main body structure of bevel gear transmission pipeline robot
CN209854810U (en) Quick desilting device that hydraulic engineering used
CN216863492U (en) Hoist engine linked system based on construction of cable crane
CN214398802U (en) Civil engineering pipe fitting placing and bearing structure
CN2351585Y (en) Wind energy and tidal energy electric generating set
CN213178099U (en) Environment-friendly and green lighting facility for building construction
CN210238464U (en) A scrubbing equipment for hydraulic engineering
CN210368869U (en) Portable gate hoist with quick assembly disassembly function for diversion floodgate
CN113510853A (en) Electric driving mechanism for upper loading barrel of mixer truck
CN112479357A (en) All-weather monitoring type wind energy aeration device for lake treatment
CN213685547U (en) High-pressure hydraulic rubber tube winch
CN111186920A (en) River course is administered and is promoted oxygenation device with quality of water
CN111335273A (en) Rotary floating gate system opened and closed by gear
CN220248284U (en) Hydrodynamic force science and technology high pressure pumping device
CN210945276U (en) Silt rapid solidification device for dredging river silt
CN212714863U (en) River course cleaning device for hydraulic engineering
CN113477634B (en) Dredging device for dredging of hydraulic engineering
CN220687944U (en) Transverse rotary speed reducer for rotary drilling rig
CN220486331U (en) Emergency mobile drainage vehicle for rescue
CN217637526U (en) Hydraulic engineering liquid level monitoring device
CN215971830U (en) Single-side double-cylinder multi-spiral vehicle

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant