CN105835845A - Trailer provided with support devices - Google Patents
Trailer provided with support devices Download PDFInfo
- Publication number
- CN105835845A CN105835845A CN201610208533.8A CN201610208533A CN105835845A CN 105835845 A CN105835845 A CN 105835845A CN 201610208533 A CN201610208533 A CN 201610208533A CN 105835845 A CN105835845 A CN 105835845A
- Authority
- CN
- China
- Prior art keywords
- trailer
- support means
- inner sleeve
- vehicle frame
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/04—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting mechanically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
- B60D1/34—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
- B60T7/203—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer with automatic brake release or reduction in case of reverse travel, e.g. by means of mechanisms mounted on the draw bar
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention relates to special vehicles, in particular to a trailer provided with support devices. The trailer comprises a chassis truck provided with a frame and side wall assemblies, wherein the frame is provided with the support devices, each support device comprises an inner sleeve and a landing leg, and a fixing block is arranged on the landing leg; a T-shaped block is mounted on an end surface of each inner sleeve, a hole in the T-shaped block is nested in a hole in the fixing block; first limiting pins and second limiting pins are mounted on the frame; a third limiting pin is mounted on each fixing block; a round hole which allows the first limiting pin to be nested is formed in one side of each inner sleeve, and a long-strip-shaped hole allowing the second limiting pin to be nested is formed in the other side of each inner sleeve. Compared with the prior art, the trailer is maneuverable, small and flexible, the obstacle passing capability and the bearing capability of the trailer are met, the stability and the shock absorption of equipment on the trailer during running can be guaranteed, the tires can be protected from deformation by external force during long-time parking of the trailer, and the service life of the tires is prolonged.
Description
Technical field
The present invention relates to special vehicle, particularly relate to the trailer of a kind of band support means.
Background technology
At present, along with growth in the living standard, automobile has become a kind of means of transport conventional in people's daily life and walking-replacing tool, and self-driving travelling becomes a kind of normality in people's life；In travelling way, naturally can bring outdoor travel articles for use, the luggage articles for use that dolly carries are limited, and the maneuverability that trailer " is announced the intention to leave and really mean it " and the ability of Dead Weight Cargo, increasingly become a kind of means of transport in people's travelling.Additionally; along with the process of industrialization in city and people increasingly pay attention to protection and the utilization of natural environment resources; trailer is in actual use; not only it is satisfied with the goods that carrying is general; and it is mounted with the emergency set needed for diversified rescue and relief work on increasing trailer; such as generating set, water pump, alert device, emergency tool etc., possess the trailer having various use functions.And the trailer of this type, stability, the damping property of trailer is desirable that higher.
But, trailer in the market, the non-fittable slackening device of great majority, when the equipment (such as generating set) on trailer runs, easily cause trailer displacement；And the trailer for rescue and relief work, because it uses frequency low, carry the weight of equipment and goods when the long-time parking of trailer, easily make trailer tire and damping spring long-time one direction stress deform, thus affect its service life, bring hidden danger to trailer security performance.It addition, the sub-fraction type trailer on market, as in the trailer patent that Chinese patent CN102806953 A announces, though there being fittable slackening device, but being all fixed on this part of support device structure, being directly installed on vehicle frame, cannot be carried out regulation and shrink, affecting the logical barrier of trailer；If the center of gravity also having the equipment on trailer and goods is higher, when the equipment (such as generating set) on trailer runs, this support means loaded area is less also easily causes trailer rollover.
Summary of the invention
In order to meet logical barrier ability and the bearing capacity of trailer, i.e. can guarantee that stability and damping property that device on the trailer runs, do not affect the service life of tire and damping when can meet again the long-time parking of trailer, spy devises the trailer of a kind of band support means.
The present invention solves its technical problem and the technical scheme is that the trailer of a kind of band support means, including chassis, described chassis is provided with vehicle frame and side wall assembly, it is characterized in that: described vehicle frame is provided with support means, described support means includes that inner sleeve and supporting leg, described supporting leg are provided with fixed block；The end face of described inner sleeve is provided with T-shaped block, and the position, hole of the Kong Weiyu fixed block of T-shaped block is the most chimeric；Described vehicle frame is provided with the first spacer pin and the second spacer pin；Described fixed block is provided with the 3rd spacer pin；Described inner sleeve side is machined with circular hole that can be the most chimeric with the first spacer pin, and the opposite side of described inner sleeve is machined with the strip hole the most chimeric with the second spacer pin.
The trailer of a kind of band support means, wherein, described vehicle frame includes draw beam, longeron, girder and lining beam；Be provided with on described draw beam and hit brake assembly, described in hit brake assembly and include draw bar, axle bed, spring, spring base, U-bolt, connecting rod ASSY and braking mechanism；Described both ends of the spring is spacing between two pieces of axle beds by spring base；Described axle bed is locked on described draw beam by U-bolt；Described draw bar sequentially passes through two pieces of axle beds, two spring bases and spring；Described draw bar end is connected with connecting rod ASSY, and described connecting rod ASSY tail end is connected with the braking mechanism of tire.
Described side wall assembly is arranged on the girder at vehicle frame two ends；Described side wall assembly includes sheet metal component and tyre shield, described sheet metal component is provided with mark time, cushion, side marker lamp, taillight assembly and workbox.
Described vehicle frame rear portion is provided with squab panel.
Described circular hole has several.
Described longeron is rectangular tube.
Described chassis is provided with and turns to assembly, plate spring assembly and parking brake assembly.
The beneficial effects of the present invention is: can pull on motor vehicles at any time, motor-driven small and exquisite flexibly, not only there is the brake of motor vehicles, optical signal, shock-absorbing function, it is ensured that the traffic safety performance of trailer；And, it is mounted with rotatable lifting landing leg, both meets logical barrier ability and the bearing capacity of trailer, stability that the equipment on trailer of can guarantee that again runs and damping property, when also ensuring that trailer long-time parking, tire deforms from External Force Acting, thus improves the service life of tire.
Accompanying drawing explanation
Fig. 1 is the axis side view such as just grade of the present invention；
Fig. 2 is the chassis front view of the present invention；
Fig. 3 is the A-A sectional view of Fig. 2；
Fig. 4 is the B portion zoomed-in view of Fig. 3；
Fig. 5 is the axis side view such as just grade of support means of the present invention；
Fig. 6 is that Fig. 5 rotates the axis side view such as just grade after 180 °；
Fig. 7 is the axis side view such as just grade of side wall assembly of the present invention；
Fig. 8 is the axis side view such as just grade during support means of the present invention recovery state.
nullIn figure: 1. chassis、2. turn to assembly、3. vehicle frame、31. draw beams、32. longerons、33. girders、34. lining beams、35. hit brake assembly、351. draw bar、352. axle bed、353. spring、354. spring base、355.U type bolt、356. connecting rod ASSY、357. braking mechanism、36. parking brake assemblies、37. plate spring assemblies、4. support means、41. first spacer pins、42. inner sleeves、421. circular hole、422. strip hole、423.T shape block、43. supporting legs、431. fixed block、432. screw rod、433. gripper shoe、44. second spacer pins、45. the 3rd spacer pins、5. side wall assembly、51. sheet metal components、52. cushions、53. mark time、54. tyre shields、55. side marker lamps、56. taillight assemblies、57. workboxes、6. squab panel.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 8, the trailer of a kind of band support means, including chassis 1, vehicle frame 3 and side wall assembly 5 it is provided with in chassis 1, vehicle frame 3 is provided with support means 4, and support means 4 includes inner sleeve 42 and lifting landing leg 43, and lifting landing leg 43 is provided with fixed block 431；The end face of inner sleeve 42 is provided with T-shaped block 423, and the position, hole of the Kong Weiyu fixed block 431 of T-shaped block 423 is the most chimeric；Vehicle frame 3 is provided with the first spacer pin 41 and the second spacer pin 44；Fixed block 431 is provided with the 3rd spacer pin 45；Inner sleeve 42 side is machined with circular hole 421 that can be the most chimeric with the first spacer pin 41, and the opposite side of inner sleeve 42 is machined with the strip hole 422 the most chimeric with the second spacer pin 44.
User can pull open the first spacer pin 41 as required, stretches out inner sleeve 42 to behind required position, it is inserted into the first spacer pin 41, which adds the support scope of lifting landing leg 43 so that rollover is less likely to occur trailer, thus adds the equipment traveling comfort on trailer；The opposite side of inner sleeve 42 is machined with a strip hole 422 the most chimeric with the second spacer pin 44, uses the second spacer pin 44 can ensure that inner sleeve 42 will not be strongly pulled out and depart from longeron 32.
T-shaped block 432 is also connected with a steering spindle with the center of fixed block 431, by rotating this steering spindle, can being rotated or turned over of easy of rise supporting leg 43, and lifting landing leg 43 can be packed up.
The trailer of this band support means, its vehicle frame 3 includes draw beam 31, longeron 32, girder 33 and lining beam 34；Being provided with machinery on draw beam 31 and hit brake assembly 35, this machinery hits brake assembly 35 and includes draw bar 351, axle bed 352, spring 353, spring base 354, U-bolt 355, connecting rod ASSY 356 and braking mechanism 357；Spring 353 two ends are spacing between two pieces of axle beds 352 by spring base 354；Axle bed 352 is locked on draw beam 31 by U-bolt 355；Draw bar 351 sequentially passes through 352, two spring bases 354 of two pieces of axle beds and spring 353, and draw bar 351 end is connected with connecting rod ASSY 356, and leading section can be connected with motor vehicle tail, and so, trailer possesses driving function under the effect of motor vehicles；Connecting rod ASSY 356 tail end is connected with the braking mechanism 357 of tire.
Install and be subject to suddenly when above tractor deceleration or brake during the mechanical purpose hitting brake assembly 35 is to ensure that carriage to be avoided that the problem collided with tractor.During carriage, when Anterior crossbite car slows down suddenly or brakes, trailer is by inertia effects, draw bar 351 will produce elastic collision with tractor under spring 353 acts on, pull connecting rod ASSY 356 backward, drive braking mechanism 357 to link, thus complete trailer brakes process, it is ensured that traffic safety.
Side wall assembly 5 is arranged on the girder 33 at vehicle frame about 3 two ends；Side wall assembly 5 includes sheet metal component 51 and tyre shield 54, and sheet metal component 51 is provided with mark time 53, cushion 52, side marker lamp 55, taillight assembly 56 and workbox 57.Mark time and 53 facilitate operator to get on or off the bus.
Welding tyre shield 54 on the tire of side wall assembly 5 left and right sides, that can avoid in driving process dirty water stain splashes down with trailer and passerby.The envelope that side wall assembly 5 surrounds abnormity with polylith sheet metal component 51 is used as workbox 57, can be used to deposit power tool.
At sheet metal component 51 side installation side clearance lamps 55, taillight assembly 56 is installed at rear portion so that it is meet the exterior lighting of motor-driven vehicle going and the regulation requirement of optical signal.One piece of cushion 52 of each self installation on the draw-in groove that side wall assembly 5 front and back end surrounds, prevents lifting landing leg 43 from hiding when placing the vibrations during carriage and damaging lifting landing leg 43.
Vehicle frame 3 rear portion is mounted with squab panel 5.
Circular hole 421 on inner sleeve 42 has several, the distance can pulled open according to support means, uses different circular holes 421.
Before and after vehicle frame 3, two longerons 32 are rectangular tube.Use this rectangular tube, the flexible of inner sleeve 42 can be facilitated.
Chassis 1 is provided with and turns to assembly 2, plate spring assembly 37 and parking brake assembly 36.Turn to assembly 2 to be arranged on the draw beam 31 of vehicle frame 3, form gusseted balance center of gravity effect when not only contributing to park with both sides vehicle tyre, and facilitate the steering-effecting in trailer traveling；Plate spring assembly 37 has certain bearing capacity and shock-absorbing function, it is ensured that device on the trailer is run and the cushioning effect in driving conditions；Toward pull-up when that the effect of parking brake assembly 36 being to stop, it is possible to keep car motionless, prevent car from coming down.
nullThe trailer of the present invention a kind of band support means is so to use，When trailer needs long-time parking or device on the trailer to need to run，Pull-up parking brake assembly 36 and the first spacer pin 41 of vehicle frame 3 longeron 32，Stretch out inner sleeve 42 to required position，And make Kong Weiyu first spacer pin 41 of its circular hole 421 be fitted together to，Then rotation and lifting supporting leg 43，Make the T-shaped block 423 corresponding aperture position chimeric (as shown in Figure 6) of the 3rd spacer pin 45 on its fixed block 431 and inner sleeve 42，Then the screw rod 432 on rotation and lifting supporting leg 43，It is allowed to gripper shoe 433 land，Trailer is under the supporting role of four lifting landing legs 43，Trailer tire is liftoff from the bearing capacity of trailer，Both the service life of trailer tire had been ensured，Also ensure that trailer will not be shifted over，Also ensure that the safety that equipment runs simultaneously.
When trailer needs to travel, in like manner, as stated above, screw rod 432 on rotation and lifting supporting leg 43, it is allowed to gripper shoe 433 liftoff, and respectively the first spacer pin 41 on the 3rd spacer pin 45 of pull-up fixed block 431 and longeron 32, rotation and lifting supporting leg 43 to level in pushing the draw-in groove of side wall assembly 5, it is allowed to lie in a horizontal plane on cushion 42, and make the first spacer pin 41 of longeron 32 embed in the position, hole of corresponding circular hole 421, this completes the recovery (such as Fig. 8) of lifting landing leg 43, it is ensured that the logical barrier performance of trailer is not affected by lifting landing leg 43.
Embodiment described above, the simply one of the present invention more preferably detailed description of the invention, the usual variations and alternatives that those skilled in the art is carried out in the range of technical solution of the present invention all should comprise within the scope of the present invention.
Claims (7)
1. the trailer of a band support means, including chassis (1), described chassis (1) is provided with vehicle frame (3) and side wall assembly (5), it is characterized in that: described vehicle frame (3) is provided with support means (4), described support means (4) includes inner sleeve (42) and supporting leg (43), and described supporting leg (43) is provided with fixed block (431)；The end face of described inner sleeve (42) is provided with T-shaped block (423), and the position, hole of the Kong Weiyu fixed block (431) of T-shaped block (423) is the most chimeric；Described vehicle frame (3) is provided with the first spacer pin (41) and the second spacer pin (44)；Described fixed block (431) is provided with the 3rd spacer pin (45)；Described inner sleeve (42) side is machined with circular hole (421) that can be the most chimeric with the first spacer pin (41), and the opposite side of described inner sleeve (42) is machined with the strip hole (422) the most chimeric with the second spacer pin (44).
The trailer of a kind of band support means the most according to claim 1, wherein, described vehicle frame (3) includes draw beam (31), longeron (32), girder (33) and lining beam (34)；Be provided with on described draw beam (31) and hit brake assembly (35), described in hit brake assembly (35) and include draw bar (351), axle bed (352), spring (353), spring base (354), U-bolt (355), connecting rod ASSY (356) and braking mechanism (357)；Described spring (353) two ends are spacing between two pieces of axle beds (352) by spring base (354)；Described axle bed (352) is locked on described draw beam (31) by U-bolt (355)；Described draw bar (351) sequentially passes through two pieces of axle beds (352), two spring bases (354) and spring (353)；Described draw bar (351) end is connected with connecting rod ASSY (356), and described connecting rod ASSY (356) tail end is connected with the braking mechanism (357) of tire.
The trailer of a kind of band support means the most according to claim 1 and 2, wherein, described side wall assembly (5) is arranged on the girder (33) at vehicle frame (3) two ends；Described side wall assembly (5) includes sheet metal component (51) and tyre shield (54), and described sheet metal component (51) is provided with mark time (53), cushion (52), side marker lamp (55), taillight assembly (56) and workbox (57).
The trailer of a kind of band support means the most according to claim 1 and 2, wherein, described vehicle frame (3) rear portion is provided with squab panel (6).
The trailer of a kind of band support means the most according to claim 1, wherein, described circular hole (421) has several.
The trailer of a kind of band support means the most according to claim 2, wherein, described longeron (32) is rectangular tube.
The trailer of a kind of band support means the most according to claim 1 and 2, wherein, described chassis (1) is provided with and turns to assembly (2), plate spring assembly (37) and parking brake assembly (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610208533.8A CN105835845A (en) | 2016-04-06 | 2016-04-06 | Trailer provided with support devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610208533.8A CN105835845A (en) | 2016-04-06 | 2016-04-06 | Trailer provided with support devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105835845A true CN105835845A (en) | 2016-08-10 |
Family
ID=56596653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610208533.8A Pending CN105835845A (en) | 2016-04-06 | 2016-04-06 | Trailer provided with support devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105835845A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487092A (en) * | 2018-05-22 | 2018-09-04 | 安徽兴宇轨道装备有限公司 | A kind of car body that foot plank paving is changed trains |
| CN108487094A (en) * | 2018-05-22 | 2018-09-04 | 安徽兴宇轨道装备有限公司 | A kind of car body that railroad bridge foot plank is more changed trains |
| CN109591778A (en) * | 2018-10-29 | 2019-04-09 | 淮阴工学院 | A kind of tank truck rollover support device and its rack gear extend amount control method |
| CN109606502A (en) * | 2019-01-24 | 2019-04-12 | 杭州豪盛电动车辆有限公司 | A kind of foldable towed vehicle of tire |
| CN110441076A (en) * | 2018-05-03 | 2019-11-12 | 上汽通用汽车有限公司 | Mute trailer |
| CN113348860A (en) * | 2020-03-02 | 2021-09-07 | 江苏沃得农业机械股份有限公司 | Trailer landing leg mechanism |
| CN114408612A (en) * | 2022-03-31 | 2022-04-29 | 杭州奥拓机电股份有限公司 | Tire-moving type screw ship unloader equipment |
| CN115056854A (en) * | 2022-07-01 | 2022-09-16 | 吉林大学 | Pull type engineering machinery chassis |
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| EP0024972A1 (en) * | 1979-08-24 | 1981-03-11 | Attelages Lemoine- La Mecano-Soudure Remoise | Reversible tow bar for agricultural tractors |
| JP2004322972A (en) * | 2003-04-28 | 2004-11-18 | Aichi Corp | Outrigger device |
| CN2811083Y (en) * | 2005-03-15 | 2006-08-30 | 陈时升 | Belt braking trailer |
| CN203845753U (en) * | 2014-04-28 | 2014-09-24 | 洪维忆 | Jack supporting frame |
| CN204095954U (en) * | 2014-08-21 | 2015-01-14 | 成都航天万欣科技有限公司 | A kind of test trailer with supporting construction |
| CN205468994U (en) * | 2016-04-06 | 2016-08-17 | 龙岩市海德馨汽车有限公司 | Take strutting arrangement's trailer |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0024972A1 (en) * | 1979-08-24 | 1981-03-11 | Attelages Lemoine- La Mecano-Soudure Remoise | Reversible tow bar for agricultural tractors |
| JP2004322972A (en) * | 2003-04-28 | 2004-11-18 | Aichi Corp | Outrigger device |
| CN2811083Y (en) * | 2005-03-15 | 2006-08-30 | 陈时升 | Belt braking trailer |
| CN203845753U (en) * | 2014-04-28 | 2014-09-24 | 洪维忆 | Jack supporting frame |
| CN204095954U (en) * | 2014-08-21 | 2015-01-14 | 成都航天万欣科技有限公司 | A kind of test trailer with supporting construction |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441076A (en) * | 2018-05-03 | 2019-11-12 | 上汽通用汽车有限公司 | Mute trailer |
| CN110441076B (en) * | 2018-05-03 | 2021-06-15 | 上汽通用汽车有限公司 | Silent trailer |
| CN108487092A (en) * | 2018-05-22 | 2018-09-04 | 安徽兴宇轨道装备有限公司 | A kind of car body that foot plank paving is changed trains |
| CN108487094A (en) * | 2018-05-22 | 2018-09-04 | 安徽兴宇轨道装备有限公司 | A kind of car body that railroad bridge foot plank is more changed trains |
| CN109591778A (en) * | 2018-10-29 | 2019-04-09 | 淮阴工学院 | A kind of tank truck rollover support device and its rack gear extend amount control method |
| CN109606502A (en) * | 2019-01-24 | 2019-04-12 | 杭州豪盛电动车辆有限公司 | A kind of foldable towed vehicle of tire |
| CN109606502B (en) * | 2019-01-24 | 2023-12-05 | 杭州豪盛电动车辆有限公司 | Trailer with storable tires |
| CN113348860A (en) * | 2020-03-02 | 2021-09-07 | 江苏沃得农业机械股份有限公司 | Trailer landing leg mechanism |
| CN114408612A (en) * | 2022-03-31 | 2022-04-29 | 杭州奥拓机电股份有限公司 | Tire-moving type screw ship unloader equipment |
| CN114408612B (en) * | 2022-03-31 | 2022-06-21 | 杭州奥拓机电股份有限公司 | Tire-moving type screw ship unloader equipment |
| CN115056854A (en) * | 2022-07-01 | 2022-09-16 | 吉林大学 | Pull type engineering machinery chassis |
| CN115056854B (en) * | 2022-07-01 | 2023-09-05 | 吉林大学 | Pull type engineering machinery chassis |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |
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| RJ01 | Rejection of invention patent application after publication |