CN113682335B - Material clearing gap bridge of container dumper - Google Patents
Material clearing gap bridge of container dumper Download PDFInfo
- Publication number
- CN113682335B CN113682335B CN202111109008.8A CN202111109008A CN113682335B CN 113682335 B CN113682335 B CN 113682335B CN 202111109008 A CN202111109008 A CN 202111109008A CN 113682335 B CN113682335 B CN 113682335B
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- bridge
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- connecting rod
- container
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- 238000004140 cleaning Methods 0.000 claims description 5
- 238000004904 shortening Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 230000014509 gene expression Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D47/00—Loading or unloading devices combined with vehicles, e.g. loading platforms, doors convertible into loading and unloading ramps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D9/00—Tipping wagons
- B61D9/14—Tipping systems controlled by trackside means
-
- 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
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/24—Unloading land vehicles
- B65G67/32—Unloading land vehicles using fixed tipping installations
- B65G67/48—Vehicle tipplers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a container dumper material clearing gap bridge, which comprises the following components: a clear material bridge floor support, a bridge driving cylinder, a bridge upper driving frame, a bridge walking platform and a bridge vertical driving connecting rod; the bridge floor support is mainly a supporting piece, the bridge vertical driving connecting rod is a piece for transmitting the action of the bridge upper driving frame to the bridge walking platform, the bridge driving cylinder is a power element for clearing the bridge, the rear end of the bridge driving cylinder is connected to a hinge point of the bridge driving cylinder preset for the bridge floor support, and the front end of the bridge driving cylinder is connected to the bridge upper driving frame, and the bridge walking platform is lifted and put down through the extension and shortening of the bridge upper driving frame.
Description
Technical Field
The invention relates to the technical field of dumpers, in particular to a material clearing bridge of a container dumper.
Background
The residual materials of the railway open wagon are generally dumped, the empty wagon is pushed onto an empty wagon line, and workers enter the open wagon from a side door on the side of the wagon to clean the materials.
The railway transportation container is a main stream internationally at present, and the technology of the railway open-top container and the open-car dual-purpose dumper, which is developed by the company, can realize the discharge of materials by dumping the open-top container to the side.
One problem faced by container dumping operations is: the height of the container is approximately 3 meters high and there are no side doors. If the dumped container has residual materials due to frozen materials, sticky materials and the like, workers can hardly enter the container, and the residual materials can not be cleaned from a side door by adopting a material cleaning method of an open car.
The existence of the residual materials becomes a bottleneck for restricting the dumping operation of the container.
Disclosure of Invention
According to the technical problem, the equipment which is matched with the car dumper and can be manually moved into the dumped container for cleaning is provided.
The invention adopts the following technical means:
A container dumper material clearing bridge comprising: the supporting mechanism is fixed on the ground; the cantilever pitching mechanism is fixed on the supporting mechanism; and a pitching driving mechanism for driving a pitching portion of the cantilever pitching mechanism to perform a pitching motion; the cantilever part of the cantilever pitching mechanism is a pitching part for pitching, the front end of the cantilever part is connected with the opening part of the container or the open wagon which is turned to a preset angle in a working state, and the connection degree allows workers to enter the container or the open wagon;
The front end of the cantilever part extends into or is lapped in an opening of the container or the open wagon which is turned to a preset angle in the working state of the cantilever part, namely, the supporting mechanism and the pitching driving mechanism form a connecting channel from the ground to the interior of the container or the open wagon in the working state of the cantilever part.
More specifically, the method comprises the steps of,
The supporting mechanism is as follows: the clear material gap bridge ground support of the frame structure is a main support piece;
the cantilever pitch mechanism includes: a bridge upper driving frame, a bridge walking platform and a bridge vertical driving connecting rod;
The bridge passing walking platform is a cantilever part of a cantilever pitching mechanism;
the clear material bridge floor support is provided with a hinge point of a bridge upper driving frame and a hinge point of a bridge travelling platform;
The upper end of the bridge vertical driving connecting rod is hinged with the bridge upper driving frame through a front hinge point of the bridge upper driving frame, and the lower end of the bridge vertical driving connecting rod is hinged with the bridge walking platform through a front hinge point of the bridge walking platform;
The pitching driving mechanism can drive the upper driving frame of the bridge to rotate around the hinge point of the upper driving frame and the clear bridge ground support, and finally drives the bridge deck to pitch.
Further, the method comprises the steps of,
The pitching driving mechanism is a gap bridge driving cylinder, is a power element for clearing a gap bridge, the rear end of the pitching driving mechanism is connected to a hinge point of the gap bridge driving cylinder preset by a clear gap bridge ground support, and the front end of the pitching driving mechanism is connected to a gap bridge upper driving support, and the gap bridge walking platform is lifted and put down through the extension and shortening of the pitching driving mechanism.
Further, the method further comprises the following steps:
A bridge vertical auxiliary connecting rod and a bridge horizontal auxiliary connecting rod;
the bridge vertical auxiliary connecting rod is hinged with the bridge upper driving frame and the bridge walking platform;
the bridge crossing transverse auxiliary connecting rod is hinged with the bridge crossing vertical driving connecting rod and the bridge crossing vertical auxiliary connecting rod.
Further, the method comprises the steps of,
The control device of the gap bridge driving cylinder is communicated with the overturning angle control device of the car dumper in a data way, and can be in linkage fit, so that the lowering action of the gap bridge walking board can be reasonably controlled according to the set overturning angle of the car dumper, more effective linkage is formed, and the basis is provided for intelligent control in the future.
According to the invention, the gap bridge for clearing the container is added on the ground of the tipping side of the dumper, and after the dumper is overturned for a certain angle, the gap bridge can be automatically connected to or parked on the upper opening of the container after dumping after the upper opening of the container is positioned at the side surface position, and workers can enter the container through the gap bridge to clear the material in the container.
Compared with the prior art, the invention has the following advantages:
1. Simple structure and low erection cost.
2. The operation is stable by adopting a mature structure, and the maintenance cost is low.
3. Can realize automatic linkage with the car dumper, reduce manual control steps and improve the working efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a cross-sectional view showing a state that a clear material bridge is lifted to allow a container to be turned over.
Fig. 2 is a cross-sectional view of the clear bridge of the invention laid down in overlap with a container, allowing clearance for the passing person.
In the figure: 1. a clear material bridge floor support; 2. a gap bridge driving cylinder; 3. a drive frame at the upper part of the bridge; 4. a bridge is crossed; 5. a bridge vertical driving connecting rod; 6. a bridge vertical auxiliary connecting rod; 7. a bridge crossing transverse auxiliary connecting rod; 8. a container ram; 9. an open top container; 10. a rear hinge point of the gap bridge driving cylinder; 11. a front hinge point of the gap bridge driving cylinder; 12. rear hinge point of upper driving frame of bridge; 13. a front hinge point of the upper driving frame of the bridge; 14. a rear hinge point of the bridge deck; 15. front hinge point of bridge deck.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a container dumper material cleaning bridge, comprising: the supporting mechanism is fixed on the ground; the cantilever pitching mechanism is fixed on the supporting mechanism; and a pitching driving mechanism for driving a pitching portion of the cantilever pitching mechanism to perform a pitching motion; the cantilever part of the cantilever pitching mechanism is a pitching part for pitching, the front end of the cantilever part is connected with the opening part of the container or the open wagon which is turned to a preset angle in a working state, and the connection degree allows workers to enter the container or the open wagon;
The front end of the cantilever part extends into or is lapped in an opening of the container or the open wagon which is turned to a preset angle in the working state of the cantilever part, namely, the supporting mechanism and the pitching driving mechanism form a connecting channel from the ground to the interior of the container or the open wagon in the working state of the cantilever part.
More specifically, the method comprises the steps of,
The supporting mechanism is as follows: the clear material gap bridge ground support 1 of the frame structure is a main support piece;
the cantilever pitch mechanism includes: the bridge-crossing upper driving frame 3, the bridge-crossing walking platform 4 and the bridge-crossing vertical driving connecting rod 5;
The bridge deck 4 is a cantilever part of a cantilever pitching mechanism;
the clear material bridge floor support 1 is provided with a hinge point of a bridge upper driving frame 3 and a hinge point of a bridge travelling platform 4;
The bridge vertical driving connecting rod 5 is a piece for transmitting the action of the bridge upper driving frame 3 to the bridge walking platform 4, the upper end of the bridge vertical driving connecting rod is hinged with the bridge upper driving frame 3 through a front hinge point 13 of the bridge upper driving frame, and the lower end of the bridge vertical driving connecting rod is hinged with the bridge walking platform 4 through a front hinge point 15 of the bridge walking platform;
the pitching driving mechanism can drive the upper driving frame 3 of the gap bridge to rotate around the hinge point of the upper driving frame and the clear gap bridge ground support 1, and finally drives the gap bridge walking platform 4 to perform pitching action.
Further, the method comprises the steps of,
The pitching driving mechanism is a gap bridge driving cylinder 2, is a power element for clearing a gap bridge, the rear end of the pitching driving mechanism is connected to a hinge point of the gap bridge driving cylinder 2 preset by the clear gap bridge ground support 1, and the front end of the pitching driving mechanism is connected to a gap bridge upper driving frame 3, and the gap bridge walking platform 4 is lifted and put down through the extension and shortening of the pitching driving mechanism; the pitch driving mechanism adopts a scheme of a telescopic cylinder structure which is linearly telescopic, and can also use a mechanism with a traction function like a hoisting wire rope to realize the driving of the upper driving frame 3.
Further, the method further comprises the following steps:
A bridge vertical auxiliary connecting rod 6 and a bridge horizontal auxiliary connecting rod 7;
The bridge vertical auxiliary connecting rod 6 is hinged with the bridge upper driving frame 3 and the bridge walking platform 4; the bridge vertical auxiliary connecting rod 6 is used for providing side protection for workers;
The bridge-crossing transverse auxiliary connecting rod 7 is hinged with the bridge-crossing vertical driving connecting rod 5 and the bridge-crossing vertical auxiliary connecting rod 6, and the function of the bridge-crossing transverse auxiliary connecting rod 7 is to provide side protection for workers.
Further, the method comprises the steps of,
The control device of the gap bridge driving cylinder 2 is communicated with the overturning angle control device of the car dumper in data, and can be in linkage fit, so that the lowering action of the gap bridge walking board can be reasonably controlled according to the set overturning angle of the car dumper, more effective linkage is formed, and the basis is provided for intelligent control.
The rear hinge point 10 of the gap bridge driving cylinder is used for hinging the gap bridge driving cylinder 2 with the clear gap bridge ground bracket 1;
the front hinge point 11 of the gap bridge driving cylinder articulates the gap bridge driving cylinder 2 with the gap bridge upper driving frame 3; the rear hinge point 12 of the upper driving frame of the gap bridge is used for hinging the upper driving frame 3 of the gap bridge to the ground bracket 1 of the gap bridge for clearing materials, and the upper driving frame 3 of the gap bridge can rotate around the point;
The front hinge point 13 of the upper driving frame of the bridge is used for hinging the upper driving frame 3 of the bridge with the vertical driving connecting rod 5 of the bridge;
The bridge-crossing walking platform 4 and the clear material bridge-crossing ground support 1 are arranged at the rear hinge point 14 of the bridge-crossing walking platform, and the bridge-crossing walking platform 4 can rotate around the point;
The front hinge point 15 of the bridge-crossing walking platform is used for hinging the bridge-crossing walking platform 4 with the bridge-crossing vertical driving connecting rod 5; the front hinge point 11 of the bridge passing driving cylinder is generally arranged above the connecting line of the rear hinge point 12 of the bridge passing upper driving frame and the front hinge point 13 of the bridge passing upper driving frame, so that when the bridge passing driving cylinder 2 acts, the rotating force arm relative to the rear hinge point 12 of the bridge passing upper driving frame is longer, and the driving force of the bridge passing oil cylinder 2 is reduced;
A connecting line between the rear hinge point 12 of the upper driving frame of the bridge and the front hinge point 13 of the upper driving frame of the bridge, and a connecting line 15 between the rear hinge point 14 of the walking board of the bridge and the front hinge point of the walking board of the bridge are parallel and equidistant; a connecting line between the rear hinge point 12 of the upper driving frame of the bridge and the rear hinge point 14 of the walking platform of the bridge, and a connecting line between the front hinge point 13 of the upper driving frame of the bridge and the front hinge point 15 of the walking platform of the bridge are parallel and equidistant;
namely: the 4 points enclose 1 parallelogram to synchronize landing and rising.
The corresponding hinging tops of the crossing vertical auxiliary connecting rod 6 and the crossing horizontal auxiliary connecting rod 7 form a parallelogram so as to synchronously rise and fall.
Working principle:
1) The invention provides a state that a clear material bridge is lifted to allow a container to be turned over:
As shown in fig. 1:
The bridge-passing driving cylinder 2 is shortened, the front hinge point 11 of the bridge-passing driving cylinder drives the bridge-passing upper driving frame 3 to rotate upwards around the rear hinge point 12 of the bridge-passing upper driving frame, the front hinge point 13 of the bridge-passing upper driving frame lifts up along with the bridge-passing upper driving frame 3 and drives the bridge-passing vertical driving connecting rod 5 to lift up, and the bridge-passing vertical driving connecting rod 5 drives the bridge-passing platform 4 through the front hinge point 15 of the bridge-passing platform to rotate around the rear hinge point 14 of the bridge-passing platform, so that the bridge-passing platform 4 is lifted up.
Correspondingly, as each hinge point is of a parallelogram structure, the bridge passes through the vertical auxiliary connecting rod 6; the bridge transverse auxiliary link 7 will also be lifted accordingly.
So that the clear bridge is in a state of lifting and allowing the container to be dumped.
2) The invention provides a method for clearing material, a bridge and a container, wherein the bridge is put down to overlap with the container, and the bridge is a cross-section view of a state allowing the clear material to pass by people:
as shown in fig. 2:
the dumped open top container, when returned to a position of about 90,
The bridge-passing driving cylinder 2 stretches, the front hinge point 11 of the bridge-passing driving cylinder pushes the bridge-passing upper driving frame 3 to rotate downwards around the rear hinge point 12 of the bridge-passing upper driving frame, the front hinge point 13 of the bridge-passing upper driving frame falls along with the bridge-passing upper driving frame 3 and drives the bridge-passing vertical driving connecting rod 5 to fall, the bridge-passing vertical driving connecting rod 5 pushes the bridge-passing platform 4 through the front hinge point 15 of the bridge-passing platform, and the bridge-passing platform rotates around the rear hinge point 14 of the bridge-passing platform, so that the falling of the bridge-passing platform 4 is realized until the bridge-passing platform is overlapped with the container pressure head 8 or the bridge-passing vertical driving connecting rod directly reaches the opening of the open top container 9.
The downward action can be also completed by the gravity of the bridge to drive the bridge driving cylinder 2.
Correspondingly, as each hinge point is of a parallelogram structure, the bridge passes through the vertical auxiliary connecting rod 6; the bridge transverse auxiliary link 7 will also fall down accordingly.
So that the material clearing gap bridge is positioned in a state of being connected with the top opening of the open top container 9, and workers can walk into the open top container 9 from the ground through the gap bridge walking board 4 in the state to carry out material clearing work.
After the material is cleared, workers walk to the ground from the container, the gap bridge driving cylinder 2 is shortened, and the clear material gap bridge is lifted for the next cycle.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (4)
1. The clear material gap bridge of container tipper, its characterized in that includes:
The supporting mechanism is fixed on the ground;
the cantilever pitching mechanism is fixed on the supporting mechanism;
And
The pitching driving mechanism is used for driving a pitching part of the cantilever pitching mechanism to perform pitching motion;
the cantilever part of the cantilever pitching mechanism is a pitching part for pitching, the front end of the cantilever part is connected with the opening part of the container or the open wagon which is turned to a preset angle in a working state, and the connection degree allows workers to enter the container or the open wagon;
The front end of the cantilever part extends into or is lapped in an opening of a container or an open wagon which is turned to a preset angle, namely, the supporting mechanism and the pitching driving mechanism form a connecting channel from the ground to the interior of the container or the open wagon in the working state of the cantilever part;
the supporting mechanism is as follows: the clear material gap bridge ground support (1) of the frame structure is a main support piece;
the cantilever pitching mechanism comprises: the device comprises a bridge upper driving frame (3), a bridge walking platform (4) and a bridge vertical driving connecting rod (5);
The bridge deck (4) is a cantilever part of a cantilever pitching mechanism;
The above-mentioned clear material passes the bridge ground support (1) and is equipped with the hinge point of the upper portion driving frame (3) of the bridge, the hinge point of the walking board (4) of the bridge;
The bridge vertical driving connecting rod (5) is a piece for transmitting the action of the bridge upper driving frame (3) to the bridge walking platform (4), the upper end of the bridge vertical driving connecting rod is hinged with the bridge upper driving frame (3) through a front hinge point (13) of the bridge upper driving frame, and the lower part of the bridge vertical driving connecting rod is hinged with the bridge walking platform (4) through a front hinge point (15) of the bridge walking platform;
the pitching driving mechanism can drive the upper driving frame (3) of the bridge to rotate around the hinge point of the upper driving frame and the clear bridge floor support (1), and finally drive the bridge deck (4) to pitch.
2. A container dumper cleaning bridge according to claim 1, wherein,
The pitching driving mechanism is a gap bridge driving cylinder (2), is a power element for clearing a gap bridge, the rear end of the pitching driving mechanism is connected to a hinge point of the gap bridge driving cylinder (2) preset by the clear gap bridge ground support (1), and the front end of the pitching driving mechanism is connected to a gap bridge upper driving frame (3) and is lengthened and shortened to lift and put down the gap bridge walking platform (4).
3. A container dumper clearing bridge according to claim 1 or 2, further comprising:
a bridge vertical auxiliary connecting rod (6) and a bridge horizontal auxiliary connecting rod (7);
The bridge vertical auxiliary connecting rod (6) is hinged with the bridge upper driving frame (3) and the bridge walking platform (4);
The bridge crossing transverse auxiliary connecting rod (7) is hinged with the bridge crossing vertical driving connecting rod (5) and the bridge crossing vertical auxiliary connecting rod (6).
4. A container dumper cleaning bridge according to claim 2, wherein,
The control device of the gap bridge driving cylinder (2) is communicated with the overturning angle control device of the car dumper in a data way, and can be in linkage fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111109008.8A CN113682335B (en) | 2021-09-22 | 2021-09-22 | Material clearing gap bridge of container dumper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111109008.8A CN113682335B (en) | 2021-09-22 | 2021-09-22 | Material clearing gap bridge of container dumper |
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| CN2365180Y (en) * | 1999-03-17 | 2000-02-23 | 承德输送机集团有限责任公司 | Mechanical up-down loading and unloading gap bridge |
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| CN216332039U (en) * | 2021-09-22 | 2022-04-19 | 大连华锐重工集团股份有限公司 | Material clearing bridge of container tippler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10145513A1 (en) * | 2001-09-14 | 2003-04-10 | Siemens Ag | Loading device for ISO containers |
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2021
- 2021-09-22 CN CN202111109008.8A patent/CN113682335B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2365180Y (en) * | 1999-03-17 | 2000-02-23 | 承德输送机集团有限责任公司 | Mechanical up-down loading and unloading gap bridge |
| CN208882578U (en) * | 2018-10-25 | 2019-05-21 | 朱治友 | Combined type truck-loading rack for container |
| CN211174173U (en) * | 2019-10-28 | 2020-08-04 | 王晋 | Caving coal face end support with pedestrian bridge |
| CN111470340A (en) * | 2020-03-25 | 2020-07-31 | 济南市钢城地天泰装卸搬运有限公司 | Train clout cleans collection device |
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