CN112499306B - Sandy soil car roof leveling device - Google Patents
Sandy soil car roof leveling device Download PDFInfo
- Publication number
- CN112499306B CN112499306B CN202011365229.7A CN202011365229A CN112499306B CN 112499306 B CN112499306 B CN 112499306B CN 202011365229 A CN202011365229 A CN 202011365229A CN 112499306 B CN112499306 B CN 112499306B
- Authority
- CN
- China
- Prior art keywords
- spiral auger
- sand
- rod
- soil
- shaped structure
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
- B65G69/0433—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials with screw conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
Abstract
The invention relates to a sand vehicle roof leveling device, which effectively solves the problems that sand vehicles at the present stage are not leveled by special leveling equipment before leaving a factory, and roof sand is cut and rubbed on a road when the sand vehicles pass through a height limiting rod or a tunnel, so that the sand is lost and wasted, and potential safety hazards to the road are caused by the falling sand; the technical scheme includes that the device comprises a V-shaped structure formed by baffles, a spiral auger obliquely arranged in a left-low-right-high mode is arranged above the V-shaped structure, a feeding hole is formed in the lower portion of an outer barrel at the left end of the spiral auger, a feeding hopper with a right opening is arranged on the outer side of the feeding hole, a discharging hole is formed in the lower portion of an outer barrel at the right end of the spiral auger, a conveying belt arranged above the upper end face of each baffle is arranged below the discharging hole, a pressure sensor control unit is arranged on the inner side of the tip end of the V-shaped structure, and the pressure sensor control unit can drive the spiral auger to move up and down in a feedback mode.
Description
Technical Field
The invention relates to the field of transportation and arrangement equipment, in particular to a top leveling device of a sand-soil vehicle.
Background
When sand and soil are transported, sand in a sand plant is loaded on a sand transport vehicle through a bulldozer or an excavator, the excavator can form an arc-shaped bulge on the sand transport vehicle in the sand loading process, a plurality of places of a road are provided with height limiting rods or culverts of a highway, when the sand and soil pass through the places, the part of the sand and soil protruding out of the top of the vehicle can be blocked by the height limiting rods to enable the sand and soil to fall on the road, so that the sand and soil is lost and wasted, meanwhile, if the fallen sand and soil are not cleaned in time, accidents are easily caused when a follow-up vehicle passes through the fallen soil pile due to rolling, the top of the vehicle needs to be leveled before the sand and soil vehicle leaves the sand plant, the height of the highest position of the sand and soil can pass through most of the height limiting positions, so that the loss of the sand and soil is avoided, and the potential safety hazard problem of the road caused by the lost sand and soil is solved.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the top leveling device for the sand-soil vehicle, which effectively solves the problems that the sand-soil vehicle at the present stage is not provided with a special leveling device for leveling before leaving a factory, and the sand-soil on the top of the sand-soil vehicle is cut and rubbed on a road when the sand-soil vehicle passes through a height limiting rod or a tunnel, so that the sand-soil is lost and wasted, and potential safety hazards exist on the road due to the falling sand-soil.
The technical scheme includes that the device comprises two vertical support columns which are arranged side by side in a front-back direction at intervals, a horizontal baffle is fixed at the upper end of each support column, free ends of the two baffles are fixedly connected to form a V-shaped structure, a spiral auger which is obliquely arranged from left to right is arranged above the support columns, the left end of the spiral auger is arranged in the V-shaped structure, the right end of the spiral auger is arranged on the right side of the support column and is higher than the upper end surface of the baffle, a feed inlet is arranged at the lower part of an outer cylinder at the left end of the spiral auger, a feed hopper with a right opening is arranged outside the feed inlet, a horizontal roller in the front-back direction is arranged in the feed hopper, a spindle of the roller is hinged in the feed hopper through a connecting rod, a coil spring which enables the roller to swing downwards to reset is arranged at the hinged position of the connecting rod and the feed hopper, a first drive switch of the spiral auger is arranged above the roller, and the spiral auger can be driven to be electrified and rotate when the roller rotates anticlockwise, the lower part of spiral auger right-hand member urceolus is equipped with a discharge gate, the below of discharge gate is equipped with a conveyer belt of arranging baffle up end top in, the conveyer belt rotates together with the spiral auger, both sides respectively are equipped with a pneumatic cylinder that can drive the whole reciprocating of spiral auger around the spiral auger, the most advanced inboard of V-arrangement structure is equipped with a montant, the intermediate position of montant articulates in the V-arrangement structure, the left side of montant upper end is equipped with the pressure sensor the control unit of pneumatic cylinder, the upper end and the pressure sensor the control unit's of montant contact are connected through the extension spring, can drive the pneumatic cylinder and drive spiral auger downstream when the montant rotates clockwise, and the distance that the spiral auger downstream is positive correlation with montant clockwise pivoted angle.
The invention has novel concept, ingenious structure and strong practicability, and effectively solves the problems that the sandy soil on the roof is scraped and falls onto the road when the sandy soil vehicle passes through a height limiting rod or a tunnel, so that the sandy soil is lost and wasted and the fallen sandy soil has potential safety hazards to the road.
Drawings
FIG. 1 is a front sectional view of the present invention.
FIG. 2 is a top view of the present invention.
FIG. 3 is a right side sectional view of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As can be seen from the figures 1 to 3, the invention comprises two vertical support columns 1 which are arranged side by side in a front-back direction at intervals, a horizontal baffle plate 2 is fixed at the upper end of each support column 1, the free ends of the two baffle plates 2 are fixedly connected to form a V-shaped structure, a spiral auger 3 which is obliquely arranged from left to right is arranged above the support column 1, the left end of the spiral auger 3 is arranged in the V-shaped structure, the right end of the spiral auger 3 is arranged on the right side of the support column 1 and is higher than the upper end surface of the baffle plate 2, a feed inlet is arranged at the lower part of the outer cylinder at the left end of the spiral auger 3, a feed hopper 4 with a right opening is arranged outside the feed inlet, a roller 5 in the horizontal front-back direction is arranged in the feed hopper 4, a mandrel of the roller 5 is hinged in the feed hopper 4 through a connecting rod 6, a coil spring 7 which enables the roller 5 to swing downwards and reset is arranged at the hinged position of the connecting rod 6 and the feed hopper 4, a first driving switch 8 of the spiral auger 3 is arranged above the roller 5, the roller 5 can drive the spiral auger 3 to be electrified and rotate when rotating anticlockwise, the lower part of the outer cylinder at the right end of the spiral auger 3 is provided with a discharge port, a conveyor belt 9 arranged above the upper end face of the baffle 2 is arranged below the discharge port, the conveyor belt 9 and the spiral auger 3 rotate together, the front side and the rear side of the spiral auger 3 are respectively provided with a hydraulic cylinder 10 capable of driving the spiral auger 3 to integrally move up and down, the inner side of the tip end of the V-shaped structure is provided with a vertical rod 11, the middle position of the vertical rod 11 is hinged in the V-shaped structure, the left side at the upper end of the vertical rod 11 is provided with a pressure sensor control unit 12 of the hydraulic cylinder 10, the upper end of the vertical rod 11 is connected with a contact of the pressure sensor control unit 12 through a tension spring 13, the hydraulic cylinder 10 can be driven to drive the spiral auger 3 to move down when the vertical rod 11 rotates clockwise, and the distance of the downward movement of the spiral auger 3 is positively correlated with the clockwise rotation angle of the vertical rod 11.
In order to realize that the connecting rod 6 can drive the spiral auger 3 to rotate when anticlockwise rotating, the spiral auger 3 is driven by a first motor, a first motor is controlled by a first driving switch 8 to be opened and closed, the connecting rod 6 is connected with the first driving switch 8 through a compressed spring 14, the compressed spring 14 is extruded when the connecting rod 6 anticlockwise rotates, the compressed spring 14 is extruded to enable the compressed spring 14 to extrude the first driving switch 8 so that the first motor is electrically rotated, and meanwhile, the compressed spring 14 provides telescopic allowance for the continuous anticlockwise rotation of the connecting rod 6.
In order to achieve a better contact of the lower end of the vertical rod 11 with the sand, a vertical plate 15 is fixed to the lower end of the vertical rod 11.
In order to realize that the spiral auger 3 can drive the conveyor belt 9 to rotate together when rotating, the conveyor belt 9 is driven by the second motor, and the second motor is controlled to be opened and closed by the first driving switch 8.
In order to realize the installation of pneumatic cylinder 10, the upper end of two support columns 1 is connected through the dead lever, and two pneumatic cylinders 10 are fixed on the dead lever, and the hydraulic stem of pneumatic cylinder 10 stretches out the end and is equipped with Z shape pole, and the one end of Z shape pole is fixed with the one end of pneumatic cylinder 10, and the other end is fixed with spiral auger 3's urceolus, connects in the hydraulic pump on the pneumatic cylinder 10, and the hydraulic pressure oil mass of pressure sensor switch control hydraulic pump in to pneumatic cylinder 10.
In order to realize the installation of the device, an auxiliary support frame 16 is arranged on the outer side of each baffle 2, a second support frame 17 is arranged below the conveyor belt 9, and the conveyor belt 9 is installed on the second support frame 17.
The specific working process of the invention is as follows: in the initial state of the device, the feed hopper 4 is arranged above the lower edge of the baffle 2 and close to the horizontal plane of the lower edge of the baffle 2, the roller 5 is close to the bottom of the feed hopper 4 under the reset action of the coil spring 7 when no vehicles pass through, the first driving switch 8 cannot be electrified, the pressure spring 14 is stretched by the self weight of the roller 5, the vertical rod 11 is in the vertical state under the action of the tension spring 13, the hydraulic cylinder 10 is in the static state under the state, when a sandy soil vehicle passes through, the highest height of sandy soil on the sandy soil vehicle is smaller than the height of the conveyor belt 9 and smoothly passes through the conveyor belt 9, the highest height of the sandy soil is higher than the lower edge of the baffle 2, the vehicles are driven to pass through the middle of the device, the protruded part of the sandy soil vehicle firstly contacts with the feed hopper 4 and is blocked by the feed hopper 4, the roller 5 rolls along the outer edge surface of the sandy soil at the moment, and because the protruded part of the sandy soil is arc, therefore, the roller 5 is pushed upwards by sandy soil, the connecting rod 6 rotates anticlockwise at the moment, the coil spring 7 is extruded, meanwhile, the first driving switch 8 is extruded by the pressure spring 14 in the anticlockwise rotating process of the connecting rod 6 to enable the first motor and the second motor to be electrified, the spiral auger 3 and the conveyor belt 9 are started at the moment, the part of the sandy soil vehicle, which is blocked by the feed hopper 4, moves leftwards along with the sandy soil vehicle, is pushed into the feed port of the spiral auger 3, is conveyed and driven to the discharge port above the conveyor belt 9 by the spiral auger 3, falls onto the conveyor belt 9 and is driven to the roadside by the conveyor belt 9, and the roadside can pre-stop a collecting vehicle to collect the dropped sandy soil.
After the sand and soil vehicle passes through the feed hopper 4, a gully is formed in the middle of the sand and soil vehicle, the sand and soil in the gully is transferred to the roadside, simultaneously along with the continuous movement of the sand and soil vehicle, the sand and soil on two sides of the gully are pushed towards the middle by the V-shaped structure and gradually fill the gully dug by the feed hopper 4, at the moment, if the sand and soil on two sides of the gully remains after filling the gully, the remaining sand and soil can block the lower end of the vertical plate 15 and enable the vertical rod 11 to rotate clockwise, at the moment, the clockwise rotation of the vertical rod 11 can drive the tension spring 13 to stretch, and the pressure sensor control unit can drive the hydraulic rod in the hydraulic cylinder 10 to retract, so that the spiral auger 3 moves downwards, in the process, the feed hopper 4 moves downwards and enables the depth of the feed hopper 4 to enter the sand and soil to increase, the depth of the gully dug by the feed hopper 4 in the process, and the sand and soil on two sides of the gully is filled in the gully, the sandy soil on two sides can be completely filled in a gully, the vertical plate 15 is not or is reduced by the resistance of the sandy soil, the hydraulic cylinder 10 drives the spiral packing auger 3 to reset upwards partially under the action of the pressure sensor control unit 12, the pressure sensor control unit 12 is composed of a PLC control circuit component and an induction contact, and the up-and-down moving distance of the spiral packing auger 3 is adjusted in a vertically adaptive mode according to the pressure applied to the vertical plate 15, so that the sandy soil vehicle can be tidied after passing through the device.
Compared with the traditional equipment, the device has the following advantages:
1. when the device levels redundant sandy soil on the sandy soil vehicle, a gully is dug in the sandy soil vehicle, soil in the gully is lifted by the spiral auger 3 and conveyed to the outer side of a road through the conveying belt 9, and meanwhile, the sandy soil on two sides of the gully is pushed into the gully by the V-shaped structure to level the gully in the advancing process of the sandy soil vehicle, so that the whole vehicle roof leveling process is more efficient and faster, the discharged sandy soil cannot fall on the road to block subsequent vehicles, and the problem of potential safety hazards existing when the subsequent vehicles pass is effectively solved.
2. Because the amount of redundant sandy soil on each sandy soil vehicle is different, the depth of the feed hopper 4 extending into the sandy soil vehicle cannot be the same, and therefore a vertical rod 11 flexible pressure sensor control unit contact is arranged in the V-shaped structure to control the extension length of a hydraulic rod of the hydraulic cylinder 10, so that the depth of the feed hopper 4 extending downwards is increased when the residual amount of sandy soil is large after filling gullies, the excavated gullies are deepened, the redundant sandy soil can be effectively filled into the excavated gullies, and the whole device is more intelligent.
3. The sandy soil that this device was discharged the road limit through spiral auger 3 and conveyer belt 9 is followed the eminence and dropped, and the sandy soil of consequently this part is collected and can be directly arranged the vehicle to accept, has avoided the sandy soil that drops to need carry out the manual loading once more for the flattening of whole sandy soil car, the collection of unnecessary sandy soil are more high-efficient reasonable.
The invention has novel concept, ingenious structure and strong practicability, and effectively solves the problems that the sand and soil on the roof of the sand and soil vehicle is cut and rubbed on the road when the sand and soil vehicle passes through a height limiting rod or a tunnel, thereby causing the loss and waste of the sand and soil and the potential safety hazard of the falling sand and soil on the road in the prior stage without special leveling equipment for leveling before leaving the factory.
Claims (6)
1. A sand-soil vehicle roof leveling device comprises two vertical supporting columns (1) which are arranged side by side in the front and at the back, and is characterized in that a horizontal baffle (2) is fixed at the upper end of each supporting column (1), the free ends of the two baffles (2) are fixedly connected and form a V-shaped structure, a spiral auger (3) which is obliquely arranged in a low left-right mode is arranged above the supporting column (1), the left end of the spiral auger (3) is arranged in the V-shaped structure, the right end of the spiral auger is arranged on the right side of the supporting column (1) and is higher than the upper end face of the baffle (2), a feeding port is arranged at the lower part of the outer cylinder at the left end of the spiral auger (3), a feeding hopper (4) with an opening facing right is arranged outside the feeding port, a roller (5) in the horizontal front-back direction is arranged in the feeding hopper (4), and a mandrel of the roller (5) is hinged in the feeding hopper (4) through a connecting rod (6), a coil spring (7) for enabling the roller (5) to swing downwards and reset is arranged at the hinged position of the connecting rod (6) and the feed hopper (4), a first driving switch (8) of the spiral auger (3) is arranged above the roller (5), the spiral auger (3) can be driven to be electrified and rotate when the roller (5) rotates anticlockwise, a discharge port is arranged at the lower part of an outer barrel at the right end of the spiral auger (3), a conveying belt (9) arranged above the upper end face of the baffle (2) is arranged below the discharge port, the conveying belt (9) and the spiral auger (3) rotate together, hydraulic cylinders (10) capable of driving the spiral auger (3) to integrally move up and down are respectively arranged at the front side and the rear side of the spiral auger (3), a vertical rod (11) is arranged on the inner side of the tip end of the V-shaped structure, the middle position of the vertical rod (11) is hinged in the V-shaped structure, and a pressure sensor control unit (12) of the hydraulic cylinder (10) is arranged on the left side of the upper end of the vertical rod (11), the upper end of the vertical rod (11) is connected with a contact of the pressure sensor control unit (12) through a tension spring (13), when the vertical rod (11) rotates clockwise, the hydraulic cylinder (10) can be driven to drive the spiral auger (3) to move downwards, and the distance of downward movement of the spiral auger (3) is positively correlated with the clockwise rotation angle of the vertical rod (11).
2. The sand-soil vehicle roof leveling device according to claim 1, wherein the spiral auger (3) is driven by a first motor, the first motor is controlled to be opened and closed by a first driving switch (8), the connecting rod (6) is connected with the first driving switch (8) through a pressure spring (14), the pressure spring (14) is extruded when the connecting rod (6) rotates anticlockwise, the first driving switch (8) is extruded by the pressure spring (14) to enable the first motor to be rotated by power, and meanwhile, the pressure spring (14) provides a telescopic margin for continuous anticlockwise rotation of the connecting rod (6).
3. A sand vehicle roof levelling apparatus according to claim 1, wherein a riser (15) is fixed to the lower end of the vertical rod (11).
4. A sandy soil vehicle roof levelling apparatus as claimed in claim 1, wherein the conveyor belt (9) is driven by a second motor, the second motor being controlled to open and close by the first drive switch (8).
5. The sand-soil vehicle roof leveling device as claimed in claim 1, wherein the upper ends of two supporting columns (1) are connected through a fixed rod, two hydraulic cylinders (10) are fixed on the fixed rod, the extending end of the hydraulic rod of the hydraulic cylinder (10) is provided with a Z-shaped rod, one end of the Z-shaped rod is fixed with one end of the hydraulic cylinder (10), the other end of the Z-shaped rod is fixed with the outer cylinder of the spiral auger (3), the hydraulic cylinder (10) is connected with a hydraulic pump, and the hydraulic pump is controlled by a pressure sensor switch to feed hydraulic oil into the hydraulic cylinder (10).
6. A sand-soil vehicle roof levelling apparatus according to claim 1, wherein an auxiliary support frame (16) is provided outside each baffle (2), a second support frame (17) is provided below the conveyor belt (9), and the conveyor belt (9) is mounted on the second support frame (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365229.7A CN112499306B (en) | 2020-11-28 | 2020-11-28 | Sandy soil car roof leveling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365229.7A CN112499306B (en) | 2020-11-28 | 2020-11-28 | Sandy soil car roof leveling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112499306A CN112499306A (en) | 2021-03-16 |
| CN112499306B true CN112499306B (en) | 2022-08-12 |
Family
ID=74967299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011365229.7A Active CN112499306B (en) | 2020-11-28 | 2020-11-28 | Sandy soil car roof leveling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112499306B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8816586U1 (en) * | 1988-07-09 | 1989-12-14 | O & K Orenstein & Koppel Ag, 4600 Dortmund, De | |
| KR20030059609A (en) * | 2002-01-03 | 2003-07-10 | 주식회사 포스코건설 | Loading Apparatus for Raw Material on a Freight Car |
| CN101790916A (en) * | 2010-02-24 | 2010-08-04 | 沧州临港福财农业机械有限公司 | seedling transplanter |
| CN207113561U (en) * | 2017-06-20 | 2018-03-16 | 东乡县九鼎牧业有限公司 | A kind of corn drying conveyer |
| CN110089220A (en) * | 2019-05-23 | 2019-08-06 | 田艺江 | A kind of moveable equipment for being used for soil improvement |
-
2020
- 2020-11-28 CN CN202011365229.7A patent/CN112499306B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8816586U1 (en) * | 1988-07-09 | 1989-12-14 | O & K Orenstein & Koppel Ag, 4600 Dortmund, De | |
| KR20030059609A (en) * | 2002-01-03 | 2003-07-10 | 주식회사 포스코건설 | Loading Apparatus for Raw Material on a Freight Car |
| CN101790916A (en) * | 2010-02-24 | 2010-08-04 | 沧州临港福财农业机械有限公司 | seedling transplanter |
| CN207113561U (en) * | 2017-06-20 | 2018-03-16 | 东乡县九鼎牧业有限公司 | A kind of corn drying conveyer |
| CN110089220A (en) * | 2019-05-23 | 2019-08-06 | 田艺江 | A kind of moveable equipment for being used for soil improvement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112499306A (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7367408B2 (en) | Scraping device and a system and a method for collecting materials | |
| US5921706A (en) | Method and means for on-roadway recycling of pavement and recovering steels therefrom | |
| WO2008031490A1 (en) | Mobile crusher plant | |
| CN112499306B (en) | Sandy soil car roof leveling device | |
| CN110820493A (en) | Automatic road shoulder laying machine for urban and rural joint | |
| CN207143692U (en) | A kind of milling machine of pavement self-adaptive | |
| EP0382922A2 (en) | Mobile crusher, especially for comminuting demolition materials and other rubble | |
| US3908540A (en) | Mobile compacting apparatus | |
| CN112374206B (en) | Sandy soil vehicle height limiting device | |
| US4005790A (en) | Paving material conveyor system | |
| CN112224928B (en) | Sand discharging device for height limit of sand vehicle | |
| US20080230244A1 (en) | Apparatus, system and method for moving a scraping device | |
| CN214992943U (en) | Leveler for road construction | |
| CN113089406B (en) | Construction method for green upgrading and reconstruction of old cement concrete pavement | |
| CN114855576A (en) | Pit and groove pavement asphalt paving system | |
| WO2005001245A2 (en) | Method and device for extracting extraction products in underground mining | |
| CN210458800U (en) | Side slope screen cleaning device capable of screening garbage | |
| CN206693136U (en) | A kind of snow melt transport vehicle | |
| CN111550286A (en) | Tunnel drainage system | |
| JP5259320B2 (en) | Garbage truck | |
| KR100330281B1 (en) | The molding repair device of road boundary dike | |
| CN216156318U (en) | Building highway curb evener | |
| CN215857050U (en) | Asphalt paving equipment for bridge deck of steel box girder | |
| CN219003645U (en) | Highway rubble screening plant | |
| CN217869822U (en) | Highway spreading vehicle with garrulous sieve function |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220714 Address after: 362300 second floor, innovation building, photoelectric base, Xiamei Town, Nan'an City, Quanzhou City, Fujian Province Applicant after: QUANZHOU ZHONGYAN INTELLIGENT ELECTRICAL AND MECHANICAL RESEARCH INSTITUTE Co.,Ltd. Address before: 45 Jinshui Road, Jinshui District, Zhengzhou City, Henan Province Applicant before: Ding Zhongkui |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20210316 Assignee: Huitong (Fujian) Machinery Co.,Ltd. Assignor: QUANZHOU ZHONGYAN INTELLIGENT ELECTRICAL AND MECHANICAL RESEARCH INSTITUTE Co.,Ltd. Contract record no.: X2023980035251 Denomination of invention: A roof leveling device for sand trucks Granted publication date: 20220812 License type: Common License Record date: 20230511 |
|
| EE01 | Entry into force of recordation of patent licensing contract |