CN212000545U - Milling machine tail door lifting and hanging device based on electromagnet and milling machine - Google Patents
Milling machine tail door lifting and hanging device based on electromagnet and milling machine Download PDFInfo
- Publication number
- CN212000545U CN212000545U CN202020097573.1U CN202020097573U CN212000545U CN 212000545 U CN212000545 U CN 212000545U CN 202020097573 U CN202020097573 U CN 202020097573U CN 212000545 U CN212000545 U CN 212000545U
- Authority
- CN
- China
- Prior art keywords
- tail gate
- tail
- gate
- electromagnet
- milling machine
- 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
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model discloses a milling machine tail-gate promotes linkage and milling machine based on electro-magnet, including frame, electro-magnet, tail-gate and actuating cylinder, the tail-gate activity sets up in the frame, actuating cylinder is used for the drive the tail-gate promotes or descends so that the tail-gate switches between hang state and closed condition, the electro-magnet sets up in the frame, the electro-magnet with the position of tail-gate corresponds when the tail-gate is in the hang state, the electro-magnet circular telegram is fixed in order to adsorb the tail-gate. The utility model discloses can effectively improve the potential safety hazard that causes because of the electric liquid system trouble, avoid the long-term atress of driving cylinder simultaneously, prolong its life. In a word, the utility model provides a new technical solution, only rely on hydraulic system to make the tail-gate hang in aerial a certain position for among the prior art, can improve the firm nature when the tail-gate hangs, reduce the potential safety hazard to a certain extent.
Description
Technical Field
The utility model relates to an engineering machine tool technical field especially relates to a milling machine tail-gate promotes linkage and includes this milling machine tail-gate based on electro-magnet promotes linkage's milling machine based on electro-magnet based milling machine tail-gate.
Background
The milling machine is a special mechanical device for maintenance operation of highways and urban roads, is mainly used for excavation and renovation of surface layers of highways, town roads, airports, goods yards, parking lots and the like, and can efficiently remove damaged road surfaces and waste road surface layers and excavate road surface pits and grooves. When the milling machine works, the milling wheel rotates at a high speed, the milling cutter arranged on the milling wheel mills the old pavement, and the milled waste materials are collected and cleaned by the tail gate.
In the prior art, a milling machine tail door mainly has the following two opening schemes: in the technical scheme of the application number '201620174648.5', a guide groove is arranged at the rear end of a frame of a milling machine, a tail door which is in sliding connection with the guide groove is arranged in the guide groove, the tail door is connected with the frame through a lifting oil cylinder, when the interior of a milling cabin or a milling wheel needs to be maintained and a milling cutter needs to be replaced, the lifting oil cylinder is controlled through a hydraulic system to lift the tail door, and the tail door is suspended at a certain position in the air by virtue of the hydraulic system; secondly, in another opening scheme, the milling machine tail door is positioned behind the milling hub, the milling machine tail door comprises a scraping plate and a turnover plate, the scraping plate and the turnover plate are mutually attached, and can relatively slide, if a sliding groove and a limiting guide post which are mutually matched are respectively arranged on the scraping plate and the turnover plate, one of the sliding groove and the limiting guide post is arranged on the scraping plate, the other one of the sliding groove and the limiting guide post is arranged on the turnover plate, the scraping plate and the turnover plate can relatively translate under the guiding of the sliding groove and the limiting guide post in the opening and closing processes of the tail door, the scraping plate is lifted to a certain position and the turnover plate is turned over during maintenance, an operator can observe the condition of the milling hub, the milling hub can be conveniently cleaned, the worn cutter head can be replaced, wherein the scraping plate and the turnover plate can be simultaneously lifted by two oil cylinders, and four oil cylinder lifting tail doors can also be configured, specifically, two cylinders lift the scraper, and the other two cylinders open the roll-over plate.
Among the prior art, generally rely on hydraulic system and couple hanging hole complex mode to make the tail-gate hang in aerial a definite position, if in the technical scheme that application number is "201620174648.5", be equipped with the connecting hole in the tail-gate upper end, swing joint has the dwang in the frame between lift cylinder's cylinder end and tail-gate top, has linked firmly on the dwang with connecting hole matched with couple, couple and connecting hole just correspond the setting, the dwang links to each other with the rotating device that makes its rotation.
It is also realistic for a person skilled in the art how to provide a milling machine tail gate lifting suspension device that is different from the existing structure in order to provide a new technical solution.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, one of the purposes of the utility model is to provide a milling machine tail-gate promotes linkage based on electro-magnet to provide a new technical solution, only rely on hydraulic system to make the tail-gate hang in aerial a certain position for among the prior art, can improve the firm nature when the tail-gate hangs, reduce the potential safety hazard to a certain extent.
The utility model discloses a second aim at provides a milling machine including above-mentioned milling machine tail-gate based on electro-magnet promotes linkage.
The utility model discloses an aspect discloses a milling machine tail-gate promotes linkage based on electro-magnet, including frame, tail-gate and actuating cylinder, the tail-gate activity sets up in the frame, actuating cylinder is used for the drive the tail-gate promotes or descends so that the tail-gate switches between suspension state and closed condition, still includes the electro-magnet, the electro-magnet sets up in the frame, the electro-magnet with the position of tail-gate corresponds when the tail-gate is in suspension state, the electro-magnet circular telegram is fixed in order to adsorb the tail-gate.
The milling machine tail gate lifting and hanging device based on the electromagnet is improved on one hand, and further comprises a controller and a state detection sensor, wherein the state detection sensor is used for detecting the state of the driving oil cylinder and/or the tail gate, the state detection sensor and the electromagnet are respectively connected with the controller, and the controller controls the electromagnet to be powered on or powered off according to state detection information of the state detection sensor.
As an improvement of the milling machine tail gate lifting and hanging device based on the electromagnet, the state detection sensor is a displacement sensor for detecting the displacement of the end of the cylinder rod of the driving oil cylinder; or, the state detection sensor is a distance sensor for detecting the relative distance between the tail gate and the electromagnet.
The milling machine tail gate lifting suspension device based on the electromagnet is improved in one aspect, the milling machine tail gate lifting suspension device further comprises a storage battery, and the controller is connected with the storage battery.
As an improvement on the one hand of the lifting and hanging device of the milling machine tail door based on the electromagnet, the tail door comprises a turnover plate and a scraper, the turnover plate is hinged to the rack, the scraper is arranged on the turnover plate in a telescopic mode, the cylinder end of a driving oil cylinder is hinged to the rack above the tail door, the cylinder rod end of the driving oil cylinder is hinged to the scraper of the tail door, and the driving oil cylinder can drive the scraper to extend or retract relative to the turnover plate and drive the turnover plate and the scraper to integrally rotate around the hinged position of the turnover plate and the rack.
The milling machine tail gate lifting and hanging device based on the electromagnet is improved in one aspect, when the tail gate is in a hanging state, the tail gate is horizontally placed, the electromagnet is located above the tail gate, and the extending direction of the electromagnet is parallel to the extending direction of the tail gate.
As an improvement of the lifting and hanging device of the milling machine tail door based on the electromagnet, a sliding groove and a limiting guide pillar which are matched with each other are respectively arranged on the scraping plate and the turnover plate.
The milling machine tail gate promotes the improvement of on the one hand of hanging up device as based on electro-magnet, still includes controller and state detection sensor, state detection sensor is used for detecting the state of tail gate, state detection sensor is for detecting the inclination sensor that tail gate inclination changes.
As an improvement of the milling machine tail gate lifting and hanging device based on the electromagnet, the number of the driving oil cylinders is two, and the driving oil cylinders are arranged on the left side and the right side of the tail gate.
The utility model discloses another aspect provides a milling machine, milling machine include among the above-mentioned arbitrary scheme milling machine tail-gate based on electro-magnet promote linkage.
The utility model discloses a milling machine tail-gate promotes linkage and milling machine based on electro-magnet, including the electro-magnet, the electro-magnet sets up in the frame, the electro-magnet with the position of tail-gate corresponds when the tail-gate is in the suspended state, the electro-magnet circular telegram is fixed with adsorbing the tail-gate to can be firm the hanging for a long time after making milling machine tail-gate rise, effectively improve because of the potential safety hazard that electric liquid system fault caused, avoid the long-term atress of driving cylinder simultaneously, prolong its life. In a word, the utility model provides a new technical solution, only rely on hydraulic system to make the tail-gate hang in aerial a certain position for among the prior art, can improve the firm nature when the tail-gate hangs, reduce the potential safety hazard to a certain extent.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of a milling machine tail gate lifting and hanging device in an embodiment of the present invention when the tail gate is in a closed state.
Fig. 2 is a schematic view of a milling machine tail gate lifting and hanging device in an embodiment of the present invention when the tail gate is in an intermediate state.
Fig. 3 is a schematic diagram of a milling machine tail gate lifting and hanging device in an embodiment of the present invention when the tail gate is in a hanging state.
Description of the reference numerals
1 rack 2 driving oil cylinder 3 electromagnet
4 turning plate 5 scraper
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", 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 referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
For explaining the present invention in detail, the milling machine tail gate lifting and hanging device based on the electromagnet and the milling machine will be described in detail with reference to the attached drawings and embodiments.
As shown in fig. 1-3, the utility model discloses a milling machine tail-gate promotes linkage based on electro-magnet, including frame 1, tail-gate and actuating cylinder 2, the tail-gate activity sets up in the frame 1, actuating cylinder 2 is used for the drive the tail-gate promotes or descends so that the tail-gate switches between suspension state and closed condition.
The utility model discloses be different with current structure, still include electro-magnet 3, electro-magnet 3 sets up in the frame 1, electro-magnet 3 with the position of tail gate corresponds when the tail gate is in the suspended state, 3 circular telegrams of electro-magnet are fixed with adsorbing the tail gate.
It will be appreciated that the electromagnet 3 may be fixed to the frame 1 in a number of ways, such as bolted, riveted, etc., a connecting bracket can be arranged between the electromagnet 3 and the frame 1, or a containing groove for containing the electromagnet 3 can be arranged on the frame 1, when the tail gate is in a suspended state, the adsorption force generated by electrifying the electromagnet 3 is at least larger than the gravity of the tail gate and the driving oil cylinder 2, thereby firmly hanging the milling machine tail door for a long time after the milling machine tail door is lifted, facilitating the maintenance of workers on the interior of the milling bin, effectively solving the potential safety hazard caused by the failure of an electro-hydraulic system, simultaneously avoiding the long-term stress of the driving oil cylinder 2, prolonging the service life of the driving oil cylinder, in addition, since the electromagnet 3 may bring some adverse effects, those skilled in the art can perform magnetism isolation processing on the positions of some parts of the milling machine according to actual conditions. In the actual operation in-process, for avoiding 3 electromagnetic force of electro-magnet apply in the twinkling of an eye in the tail-gate with lead to assaulting on the actuating cylinder 2 when 3 circular telegrams of electro-magnet, the electric current on the electro-magnet 3 is by little to big crescent for 3 electromagnetic force of electro-magnet can apply gradually in the tail-gate with improve the impact problem that the application of force brought in the twinkling of an eye on the actuating cylinder 2, on the same reason 3 when losing the electricity of electro-magnet, the electric current on the electro-magnet 3 reduces by big to little gradually. It will be appreciated that the tailgate is at least partially fabricated from a ferromagnetic material so that the electromagnet 3 is energized to attract and secure the tailgate.
According to the above, the utility model discloses a milling machine tail-gate promotes linkage based on electro-magnet, including electro-magnet 3, electro-magnet 3 sets up in frame 1, electro-magnet 3 with the position of tail-gate corresponds when the tail-gate is in the suspended state, 3 circular telegrams of electro-magnet are fixed in order adsorbing the tail-gate to make milling machine tail-gate can be firm the hanging for a long time after rising, effectively improve because of the potential safety hazard that the electric liquid system trouble caused, avoid the long-term atress of actuating cylinder 2 simultaneously, prolong its life, and, electro-magnet 3 can be according to the use situation and get electricity or lose electricity, therefore can not influence the normal drive of actuating cylinder 2 the tail-gate promotes or descends. In a word, the utility model provides a new technical solution, only rely on hydraulic system to make the tail-gate hang in aerial a certain position for among the prior art, can improve the firm nature when the tail-gate hangs, reduce the potential safety hazard to a certain extent.
As a concrete implementation form of the tail gate movably arranged on the rack 1, a guide groove is arranged on the rack 1, a tail gate which is connected with the guide groove in a sliding manner is arranged in the guide groove, the tail gate is connected with the rack 1 through a driving oil cylinder 2, the cylinder end of the driving oil cylinder 2 is hinged on the rack 1 above the tail gate, and the cylinder rod end of the driving oil cylinder 2 is hinged on the tail gate. As another specific implementation form of the tail gate movably disposed on the rack 1, as shown in fig. 1 to 3, the tail gate includes a turning plate 4 and a scraper 5, the turning plate 4 is rotatably hinged on the rack 1, the scraper 5 is telescopically disposed on the turning plate 4, the scraper 5 and the turning plate 4 are attached to each other, and the scraper 5 and the turning plate 4 can slide relative to each other, for example, a sliding slot and a limiting guide pillar are respectively disposed on the scraper 5 and the turning plate 4, the scraper 5 and the turning plate 4 can relatively translate under the guidance of the sliding slot and the limiting guide pillar during the opening and closing of the tail gate, i.e. the scraper 5 can extend out and retract relative to the turning plate 4, the cylinder end of the driving cylinder 2 is hinged on the rack 1 above the tail gate, the cylinder end of the driving cylinder 2 is hinged on the scraper 5 of the tail gate, when the driving cylinder 2 is shortened, firstly, the scraper 5 is driven to retract relative to the turnover plate 4, when the scraper 5 moves upwards relative to the turnover plate 4 to the limit position, as the driving oil cylinder 2 is still shortened, the scraper 5 and the turnover plate 4 are driven to integrally rotate around the rotating hinge joint of the turnover plate 4 and the rack 1, so that the switching from the closed state to the hanging state of the tail gate is realized, when the tail gate needs to be hung up and lowered down, the action sequence of each part of the tail gate is just opposite to the hanging process of the tail gate, and the reverse process of lifting and hanging the tail gate is realized, and the description is omitted here. Preferably, when the tail-gate is in the suspended state, the tail-gate level is put, electro-magnet 3 is located the top of tail-gate, the extending direction of electro-magnet 3 is on a parallel with the extending direction of tail-gate for the better laminating tail-gate of electro-magnet 3 increases the area of contact between electro-magnet 3 and the tail-gate, thereby makes the fixed tail-gate of absorption that can be better of electro-magnet 3.
In order to realize intelligent charging and discharging of the electromagnet 3, the intelligent charging and discharging system further comprises a controller and a state detection sensor, wherein the state detection sensor is used for detecting the state of the driving oil cylinder 2 and/or the tail gate, the state detection sensor and the electromagnet 3 are respectively connected with the controller, the controller controls the electromagnet 3 to be powered on or powered off according to the state detection information of the state detection sensor, when the controller detects that the tail gate is switched from a closed state to a suspended state, the controller controls the electromagnet 3 to be powered on according to the state detection information of the state detection sensor, the electromagnet 3 is powered on to adsorb and fix the tail gate, and when the controller detects that the tail gate is switched from the suspended state to the closed state, the controller controls the electromagnet 3 to be powered off according to the state detection information of the state detection sensor, and the electromagnet 3 is de-energized to remove the limit of the electromagnet 3 on the tail gate.
When the tail gate closing device is used, an instruction of opening the tail gate is sent, the driving oil cylinder 2 drives the tail gate to lift so that the tail gate is switched from a closed state to a suspended state, when the controller detects that the tail gate is switched from the closed state to the suspended state through the state detection sensor, the controller controls the electromagnet 3 to be electrified according to the state detection information of the state detection sensor, the electromagnet 3 is electrified to be fixedly adsorbed to the tail gate, when the tail gate is received to be closed, namely the controller detects that the tail gate is to be switched from the suspended state to the closed state, the controller controls the electromagnet 3 to be electrified according to the state detection information of the state detection sensor, and the electromagnet 3 is electrified to remove the limit of the electromagnet 3 on the tail gate.
In the above embodiment, specifically, optionally, the state detection sensor may be a displacement sensor for detecting displacement of a cylinder rod end of the driving cylinder 2; the state detection sensor may also be a distance sensor that detects the relative distance between the tailgate and the electromagnet 3; the state detection sensor can also be a pressure sensor used for detecting the oil pressure of a rod cavity or a rodless cavity of the driving oil cylinder 2, and the state of the driving oil cylinder 2 and/or the tail gate is judged according to the change of the oil pressure; when the inclination angle of the tail gate is changed during switching between the hanging state and the closing state, the state detection sensors can also be inclination angle sensors for detecting the inclination angle change of the tail gate, in order to eliminate adverse effects caused by factors such as gradient and the like, the number of the inclination angle sensors is multiple, at least one of the inclination angle sensors is arranged on the rack 1, at least one of the inclination angle sensors is arranged on the tail gate, and the state of the tail gate is judged according to the relative difference of detection data of the inclination angle sensor on the tail gate and the inclination angle sensor on the rack 1.
The electromagnet 3 can be externally connected with a power supply, and can also be powered by a storage battery, in a specific embodiment, the electromagnet comprises a controller, the storage battery and a state detection sensor, wherein the state detection sensor is used for detecting the state of the driving oil cylinder 2 and/or the tail gate, and the storage battery, the state detection sensor and the electromagnet 3 are respectively connected with the controller. In order to charge the storage battery in time, a generator can be arranged at the engine, and when the electric quantity of the storage battery is lower than a preset value, the generator generates electricity to charge the storage battery.
To sum up, the utility model discloses a milling machine tail-gate promotes linkage based on electro-magnet, including electro-magnet 3, electro-magnet 3 sets up in frame 1, electro-magnet 3 with the position of tail-gate corresponds when the tail-gate is in the suspended state, 3 circular telegrams of electro-magnet are fixed in order to adsorb the tail-gate to make milling machine tail-gate can be firm the suspension for a long time after rising, effectively improve because of the potential safety hazard that the electric liquid system trouble caused, avoid driving cylinder 2 long-term atress simultaneously, prolong its life. In a word, the utility model provides a new technical solution, only rely on hydraulic system to make the tail-gate hang in aerial a certain position for among the prior art, can improve the firm nature when the tail-gate hangs, reduce the potential safety hazard to a certain extent.
On the other hand, the invention also discloses a milling machine which is provided with the milling machine tail door lifting and hanging device based on the electromagnet.
The milling machine has all the advantages of the electromagnet-based milling machine tail door lifting and hanging device, and the description is omitted.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A milling machine tail gate promotes linkage based on electro-magnet, includes frame (1), tail gate and actuating cylinder (2), the tail gate activity sets up in frame (1), actuating cylinder (2) are used for driving the tail gate promotes or descends so that the tail gate switches between suspension state and closed condition, its characterized in that: the novel tail gate is characterized by further comprising an electromagnet (3), wherein the electromagnet (3) is arranged on the rack (1), the electromagnet (3) corresponds to the tail gate in position, and when the tail gate is in a suspended state, the electromagnet (3) is electrified to adsorb and fix the tail gate.
2. The electromagnet-based milling machine tail gate lift hitch assembly of claim 1, wherein: the power-on and power-off control system is characterized by further comprising a controller and a state detection sensor, wherein the state detection sensor is used for detecting the state of the driving oil cylinder (2) and/or the tail gate, the state detection sensor and the electromagnet (3) are respectively connected with the controller, and the controller controls the electromagnet (3) to be powered on or powered off according to state detection information of the state detection sensor.
3. The electromagnet-based milling machine tail gate lift hitch assembly of claim 2, wherein: the state detection sensor is a displacement sensor for detecting the displacement of the end of the cylinder rod of the driving oil cylinder (2); or the state detection sensor is a distance sensor for detecting the relative distance between the tail gate and the electromagnet (3).
4. The electromagnet-based milling machine tail gate lift hitch assembly of claim 2, wherein: still include the battery, the controller with the battery is connected.
5. The electromagnet-based milling machine tail gate lift hitch assembly of claim 1, wherein: the tail gate includes returning face plate (4) and scraper blade (5), returning face plate (4) rotate articulate in on frame (1), scraper blade (5) telescopically set up in on returning face plate (4), the cylinder end of drive hydro-cylinder (2) articulates on frame (1) of tail gate top, and the jar pole end of drive hydro-cylinder (2) articulates on scraper blade (5) of tail gate.
6. The electromagnet-based milling machine tail gate lift suspension device of claim 5, wherein: when the tail gate is in a suspended state, the tail gate is horizontally placed, the electromagnet (3) is located above the tail gate, and the extending direction of the electromagnet (3) is parallel to the extending direction of the tail gate.
7. The electromagnet-based milling machine tail gate lift suspension device of claim 5, wherein: and the scraper (5) and the turnover plate (4) are respectively provided with a sliding chute and a limiting guide post which are matched with each other.
8. The electromagnet-based milling machine tail gate lift suspension device of claim 5, wherein: the tail gate inclination angle detection device comprises a tail gate, and is characterized by further comprising a controller and a state detection sensor, wherein the state detection sensor is used for detecting the state of the tail gate, and the state detection sensor is an inclination angle sensor used for detecting the change of the inclination angle of the tail gate.
9. The electromagnet-based milling machine tail gate lift suspension of any one of claims 1-8, wherein: the number of the driving oil cylinders (2) is two, and the driving oil cylinders are arranged on the left side and the right side of the tail gate.
10. A milling machine, its characterized in that: the milling machine includes the electromagnet-based milling machine tail gate lift suspension of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020097573.1U CN212000545U (en) | 2020-01-16 | 2020-01-16 | Milling machine tail door lifting and hanging device based on electromagnet and milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020097573.1U CN212000545U (en) | 2020-01-16 | 2020-01-16 | Milling machine tail door lifting and hanging device based on electromagnet and milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212000545U true CN212000545U (en) | 2020-11-24 |
Family
ID=73426099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020097573.1U Active CN212000545U (en) | 2020-01-16 | 2020-01-16 | Milling machine tail door lifting and hanging device based on electromagnet and milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212000545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11795632B2 (en) | 2021-10-29 | 2023-10-24 | Caterpillar Paving Products Inc. | Systems and methods for surface milling |
-
2020
- 2020-01-16 CN CN202020097573.1U patent/CN212000545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11795632B2 (en) | 2021-10-29 | 2023-10-24 | Caterpillar Paving Products Inc. | Systems and methods for surface milling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6460292B1 (en) | Barrier gate arm assembly and methods for use thereof | |
| CN212000545U (en) | Milling machine tail door lifting and hanging device based on electromagnet and milling machine | |
| CN203487483U (en) | Lifting road pier | |
| CN102720153B (en) | Highway sundry cleaning device | |
| CN204825710U (en) | High security pendulum floodgate suitable for track traffic | |
| CN201794038U (en) | Turnover roadblock device for road junction of non-motor vehicles | |
| CN204576810U (en) | A kind of clearing lamp device for subsequent use when damaging for signal lamp device | |
| CN208963084U (en) | Logistics track double leval jib upper-turn-type broken rail device | |
| CN116607379B (en) | Road surface patching device | |
| CN211200185U (en) | Intelligent terminal blocks car pole with anticollision decreases function | |
| CN206581205U (en) | Automatic lifting adsorbent equipment | |
| CN205368986U (en) | Milling machine tail -gate promotes hang -up device | |
| JP3154307U (en) | Warning light for level crossing barrier and level crossing barrier | |
| CN108681280A (en) | Multi-functional crossing intelligent case system | |
| CN201857590U (en) | Full-automatic anti-intruding road block | |
| CN202265140U (en) | Safe supporting device for overturning garbage can and sanitation truck thereof | |
| CN202066368U (en) | Automatic detection alarm device for sintering machine trolley wheel | |
| CN201276689Y (en) | Multifunctional hydraulic snow-removing plate | |
| CN105706751A (en) | Green belt shearing device | |
| CN105794500A (en) | Intelligent green belt pruning device | |
| CN202081407U (en) | Snow-melting agent scattering device | |
| CN105794501A (en) | Highway greenbelt trimming device | |
| CN206545417U (en) | The rotary device for stop locking of multi-storied garage buzzing | |
| CN108545678A (en) | A kind of high-altitude operation vehicle arm support fastening system and its locking control method | |
| CN213773753U (en) | Robot for cleaning garbage and sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |