CN113718629B - Pedestrian bridge crossing device applicable to belt conveyor in mine - Google Patents
Pedestrian bridge crossing device applicable to belt conveyor in mine Download PDFInfo
- Publication number
- CN113718629B CN113718629B CN202110977122.6A CN202110977122A CN113718629B CN 113718629 B CN113718629 B CN 113718629B CN 202110977122 A CN202110977122 A CN 202110977122A CN 113718629 B CN113718629 B CN 113718629B
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- bridge
- adjusting device
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- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims 4
- 239000002390 adhesive tape Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D18/00—Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
- E06C9/08—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members
- E06C9/10—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members forming part of a building, such as a balcony grid, window grid, or other window part
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a pedestrian bridge crossing device suitable for an adhesive tape conveyor in a mine, wherein the pedestrian bridge crossing device is arranged at the outer side of the adhesive tape conveyor and comprises a bridge crossing body, a height adjusting device, a width adjusting device, a first ladder and a second ladder; the first ladder and the second ladder are positioned at two sides of the bridge body and are connected with the bridge body through a width adjusting device, and the width adjusting device is used for adjusting the distance between the first ladder and the center line of the bridge body and the distance between the second ladder and the center line of the bridge body; the first ladder and the second ladder are provided with a height adjusting device, and the height adjusting device is used for adjusting the distance between the gap bridge body and the roadway bottom plate. The pedestrian bridge crossing device has the beneficial effects that the height and the width can be adjusted according to the site conditions by adopting the width adjusting device and the height adjusting device, so that the pedestrian bridge crossing device is suitable for various underground rubber belt conveyors.
Description
Technical Field
The invention relates to the technical field of mining machinery, in particular to a pedestrian bridge crossing device suitable for a belt conveyor in a mine.
Background
In coal mine downhole, roadway belt conveyors sometimes require pedestrian crossing. At present, the underground coal mine adopts fixed pedestrian bridge crossing, and the following defects exist in the field use: 1. the occupied space is large during carrying and storing, the weight is heavy, and the carrying and storing are inconvenient; 2. and an overhead passenger device is also arranged in the adhesive tape main roadway, if the pedestrian passes a bridge too wide, the pedestrian is influenced, and if the pedestrian passes the bridge too narrow, the belt is possibly worn, so that the safety is not ensured. 3. The existing pedestrian bridge can not be adjusted in height, part of places are unsuitable in installation height, when the existing pedestrian bridge is too low, belt coal transportation is affected, and when the existing pedestrian bridge is too high, pedestrians are not safe due to the fact that the top plate of a roadway is affected.
It is therefore desirable to provide a width and height adjustable pedestrian crossing device for use with a belt conveyor in a mine.
Disclosure of Invention
First, the technical problem to be solved
In view of the above-mentioned shortcomings and disadvantages of the prior art, the invention provides a pedestrian bridge crossing device suitable for a mine belt conveyor, which solves the technical problem that the existing pedestrian bridge crossing device cannot adapt to various underground complex installation environments.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
the embodiment of the invention provides a pedestrian bridge crossing device suitable for an adhesive tape conveying device in a mine, which is arranged at the outer side of an adhesive tape conveyor and comprises a bridge crossing body, a height adjusting device, a width adjusting device, a first ladder and a second ladder;
the first ladder and the second ladder are positioned at two sides of the bridge body and are connected with the bridge body through a width adjusting device, and the width adjusting device is used for adjusting the distance between the first ladder and the center line of the bridge body and the distance between the second ladder and the center line of the bridge body;
the first ladder and the second ladder are provided with a height adjusting device which is used for adjusting the distance between the bridge body and the roadway bottom plate;
the first ladder and the second ladder comprise a pedestrian pedal and first supporting legs which are oppositely arranged at two sides of the pedestrian pedal;
the bridge body comprises a body member, and the first supporting leg is connected with the body member through a width adjusting device;
the height adjusting device comprises a second fastener, a U-shaped clamp clamped on a longitudinal beam of the belt conveyor, and a plurality of third mounting holes formed on the first supporting leg;
the plurality of third mounting holes are arranged at equal intervals along the length direction of the first supporting leg, external threads are arranged on the outer circumferential surfaces of the two ends of the U-shaped clamp, and the two ends of the U-shaped clamp penetrate through the third mounting holes on the first supporting leg and are in threaded connection with the second fastening piece, so that the first supporting leg and the longitudinal beam are fixedly connected together.
Optionally, the width adjusting device includes a first fastener, an adjusting member, and a plurality of first mounting holes formed in the body member;
the first mounting holes are arranged at equal intervals along the length direction of the body piece, the adjusting piece is provided with a plurality of second mounting holes matched with the first mounting holes along the length direction of the adjusting piece, one end of the adjusting piece is fixedly connected with the first supporting leg, the other end of the adjusting piece is inserted into the body piece, and the first fastener penetrates through the first mounting holes and the second mounting holes which are overlapped to fixedly connect the adjusting piece and the body piece together.
Alternatively, the first leg and adjustment member are formed from a # 12 channel and the body member is formed from a # 14 channel, and the first fastener includes a # 14 x 50mm bolt and nut.
Alternatively, the pedestrian pedal is made of embossed steel plate 3mm thick.
Optionally, a first handrail is provided on the first ladder and the second ladder, a second handrail is provided on the body member, a lower end of the first handrail is connected with the first leg, and an upper end of the first handrail is inserted into the second handrail.
(III) beneficial effects
The beneficial effects of the invention are as follows: compared with the prior art, the pedestrian bridge crossing device suitable for the underground rubber belt conveyor has the advantages of convenience and rapidness in installation, small occupied space and attractive appearance due to the adoption of the height adjusting device and the width adjusting device, can adjust the height and the width according to the field condition, and is suitable for various underground rubber belt conveyors. Meanwhile, the pedestrian bridge crossing device is telescopic, parts are small, leftover materials can be used for processing, cost is reduced, and efficiency is improved. Because of the convenient transport, adjustable width, this pedestrian bridge device repeatedly usable, if there is the part when damaging, need not reprocess, only need change damage part can, practice thrift manufacturing cost.
Drawings
FIG. 1 is an exploded view of an embodiment 1 of a pedestrian bridge crossing apparatus of the present invention adapted for use with an in-mine belt conveyor;
FIG. 2 is a schematic front view of an embodiment 1 of a pedestrian crossing device for a belt conveyor in a mine according to the present invention;
FIG. 3 is a schematic side view of the body member and adjustment member of FIG. 2, wherein the body member and adjustment member are coupled together by a bolt and nut;
FIG. 4 is a schematic side view of the stringers and a second ladder of the belt conveyor of FIG. 2, wherein the second ladder is mounted to the stringers of the belt conveyor by a U-shaped clip;
FIG. 5 is a schematic illustration of the connection of the stringer and first leg of FIG. 4;
FIG. 6 is an exploded view of example 2 of a pedestrian bridge crossing apparatus of the present invention adapted for use with an in-mine belt conveyor;
FIG. 7 is a schematic front view of an embodiment 2 of a pedestrian crossing device for a belt conveyor in a mine in accordance with the present invention;
FIG. 8 is a schematic side view of example 2 of a pedestrian bridge crossing apparatus for an in-mine belt conveyor of the present invention;
FIG. 9 is a schematic top view of the first and second legs of FIG. 7; wherein the first leg and the second leg are connected by a bolt and a nut.
[ reference numerals description ]
1: a rubber belt conveyor; 2: a first ladder; 3: a second ladder; 4: an adjusting member; 5: a body member; 6: a bolt; 7: a nut; 8: a first mounting hole; 9: a second mounting hole; 10: a first leg; 11: a pedestrian pedal; 12: a U-shaped clip; 13: a third mounting hole; 14: a longitudinal beam; 15: a second leg; 16: a first armrest; 17: a second armrest; 18: a fence net; 19: a fourth mounting hole; 20: a fifth mounting hole; 21: a cross beam; 22: and (5) supporting legs.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings. Wherein references herein to "upper", "lower", "left", "right", "front", "rear", and like directional terms refer to the orientation of fig. 1.
Example 1:
referring to fig. 1, 2, 3 and 4, in this embodiment, a pedestrian bridge crossing device suitable for a belt conveyor in a mine is provided, and the pedestrian bridge crossing device is installed on the outer side of the belt conveyor 1, and includes a bridge crossing body, a height adjusting device, a width adjusting device, a first ladder 2 and a second ladder 3.
The first ladder 2 and the second ladder 3 are positioned at two sides of the bridge body and are connected with the bridge body through a width adjusting device, and the width adjusting device is used for adjusting the distance between the first ladder 2 and the second ladder 3 and the center line of the bridge body.
The first ladder 2 and the second ladder 3 are provided with a height adjusting device which is used for adjusting the distance between the bridge body and the roadway floor.
Specifically, the bridge body includes a body member 5, a second handrail 17 and a fence 18. A second arm rest 17 is mounted on the body member 5. A fence 18 is provided on the second handrail 17 to prevent a worker from falling from within the gap of the second handrail 17. In addition, warning signs can be arranged on the fence 18 to warn pedestrians to pay attention to safety.
The first ladder 2 and the second ladder 3 each comprise a pedestrian pedal 11 and first legs 10 arranged opposite the pedestrian pedal 11. The pedestrian pedal 11 is made of embossed steel plates with the thickness of 3mm, is firm, durable and safe, and is anti-slip in a wet environment in the pit. The first ladder 2 and the second ladder 3 are provided with a first handrail 16, the lower end of the first handrail 16 is connected with the first supporting leg 10, and the upper end of the first handrail 16 is inserted into a second handrail 17 and is movably connected with the second handrail 17. Specifically, the first arm rest 16 is made of 1 inch steel pipe and the second arm rest 17 is made of 1.2 inch steel pipe. Of course, the present invention is not limited thereto, and the first handrail 16 and the second handrail 17 may be made of steel pipes of other sizes as long as the first handrail 16 can be inserted into the second handrail 17.
As shown in connection with fig. 3, the width adjustment means comprises a first fastener, an adjustment member 4 and a plurality of first mounting holes 8 provided in the body member 5. The first mounting holes 8 are arranged at equal intervals along the length direction of the body piece 5, the adjusting piece 4 is provided with the second mounting holes 9 matched with the first mounting holes 8 along the length direction, one end of the adjusting piece 4 is fixedly connected with the first supporting leg 10, the other end of the adjusting piece 4 is inserted into the body piece 5, and the first fastening piece penetrates through the first mounting holes 8 and the second mounting holes 9 which are overlapped to fixedly connect the adjusting piece 4 with the body piece 5. Due to the adoption of the structure, the pedestrian bridge crossing device of the embodiment can sequentially pass through the first mounting holes 8 and the second mounting holes 9 which are different through the first fastening piece to adjust the length of the adjusting piece 4 inserted into the body piece 5, so that the distance between the center lines of the first ladder 2 and the second ladder 3 and the bridge crossing body is adjusted. Therefore, the width of the pedestrian bridge crossing device can be adjusted according to the site conditions so as to adapt to various underground rubber belt conveyors.
Specifically, the first leg 10 and the adjusting member 4 are made of a channel 12# steel, and the body member 5 is made of a channel 14# steel. Of course, the invention is not limited thereto and the first leg 10, the adjustment member 4 and the body member 5 may be made of other types of channel steel as long as the adjustment member 4 can be inserted into the body member 5. The pedestrian bridge crossing device uses channel steel for welding, and unsafe factors such as deflection, looseness and deformation of the supporting legs in the using process can be avoided.
Furthermore, the first fastening means is preferably a bolt 6 and a nut 7 of 14×50 mm. The bolts 6 pass through the first mounting holes 8 and the second mounting holes 9 in sequence and are detachably connected with the nuts 7. Thereby fastening the adjustment member 4 and the body member 5 together.
Referring to fig. 1, the belt conveyor 1 includes idlers, stringers 14, beams 21, and support legs 22. The carrier roller is arranged on the cross beam 21, longitudinal beams 14 which are arranged along the transportation direction of the rubber belt conveyor are symmetrically arranged at two ends of the cross beam 21, and supporting legs 22 are arranged below the longitudinal beams 14. The belt conveyor 1 is thus placed on the roadway floor by means of the support legs 22.
As shown in fig. 4 and 5, the height adjusting device includes a second fastener, a U-shaped clip 12 that is fastened to a side member 14 of the tape conveyor 1, and a plurality of third mounting holes 13 that are provided on the first leg 10, the plurality of third mounting holes 13 being arranged at equal intervals along the length direction of the first leg 10.
External threads are arranged on the outer circumferential surfaces of the two ends of the U-shaped clamp 12, and the two ends of the U-shaped clamp 12 penetrate through the third mounting holes 13 on the first supporting leg 10 and are in threaded connection with the second fastening piece, so that the first supporting leg 10 and the longitudinal beam 14 are fixed together. The pedestrian bridge crossing device of the embodiment is not directly placed on the roadway floor, but is installed on the longitudinal beam 14 of the rubber belt conveyor 1 through the U-shaped clamp 12, and the distance between the bridge crossing main body and the rubber belt conveyor 1 can be adjusted by adjusting the U-shaped clamp 12 to pass through different third installation holes 13, so that the distance between the bridge crossing main body and the roadway floor can be adjusted. Furthermore, the second fastener is preferably a nut 7. Thus, the pedestrian bridge crossing device of the embodiment can adjust the height of the bridge crossing body, so that the safety of pedestrians and enough coal crossing space are considered.
Compared with the prior art, the pedestrian bridge crossing device is convenient and quick to install, small in occupied space, attractive in appearance, capable of adjusting the height and the width according to the field condition, and suitable for various underground rubber belt conveyors. Meanwhile, the pedestrian bridge crossing device is telescopic, parts are small, leftover materials can be used for processing, cost is reduced, and efficiency is improved. Because of the convenient transport, adjustable width, this pedestrian bridge device repeatedly usable, if there is the part when damaging, need not reprocess, only need change damage part can, practice thrift manufacturing cost.
Example 2:
referring to fig. 6, 7, 8 and 9, in the present embodiment, a pedestrian bridge crossing apparatus includes a bridge crossing body, a height adjusting apparatus, a width adjusting apparatus, a first ladder 2 and a second ladder 3, the height adjusting apparatus of the pedestrian bridge crossing apparatus being different from that of embodiment 1 in that the height adjusting apparatus includes a third fastener, a second leg 15 and a plurality of fourth mounting holes 19 opened at a lower end of the first leg 10.
Specifically, a plurality of fourth mounting holes 19 are arranged at equal intervals along the length direction of the first supporting leg 10, a fifth mounting hole 20 matched with the fourth mounting hole 19 for use is formed in the second supporting leg 15 along the length direction of the second supporting leg, the lower end of the second supporting leg 15 is propped against a roadway bottom plate, the upper end of the second supporting leg 15 is sleeved on the outer side of the first supporting leg 10, and a third fastener passes through the overlapped fifth mounting hole 20 and fourth mounting hole 19 to fixedly connect the second supporting leg 15 with the first supporting leg 10. With the above structure, the pedestrian crossing device of the present embodiment can adjust the distance between the crossing body and the second leg 15 by passing the third fastener through the fifth mounting hole 20 and the different fourth mounting hole 19, thereby realizing adjustment of the distance between the crossing body and the roadway floor.
In this embodiment, the first leg 10 is made of a 12# channel steel, and the second leg 15 is made of a 14# channel steel. The third fastening means is preferably a bolt 6 and a nut 7 of 14×50 mm. The bolts 6 pass through the fifth mounting holes 20 and the fourth mounting holes 19 in turn and are detachably connected with the nuts 7, thereby fastening the second leg 15 and the first leg 10 together.
Thus, the pedestrian bridge crossing device of the embodiment can adjust the height of the bridge crossing body, so that the safety of pedestrians and enough coal crossing space are considered.
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.
In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the invention.
Claims (5)
1. The utility model provides a pedestrian's device of crossing a bridge suitable for rubber belt conveyor in mine which characterized in that: the pedestrian bridge crossing device is arranged on the outer side of the rubber belt conveyor (1) and comprises a bridge crossing body, a height adjusting device, a width adjusting device, a first ladder (2) and a second ladder (3);
the first ladder (2) and the second ladder (3) are positioned at two sides of the bridge crossing body and are connected with the bridge crossing body through the width adjusting device, and the width adjusting device is used for adjusting the distance between the first ladder (2) and the second ladder (3) and the center line of the bridge crossing body;
the first ladder (2) and the second ladder (3) are provided with a height adjusting device which is used for adjusting the distance between the bridge crossing body and the roadway bottom plate;
the first ladder (2) and the second ladder (3) comprise a pedestrian pedal (11) and first supporting legs (10) which are oppositely arranged at two sides of the pedestrian pedal (11);
the bridge body comprises a body member (5), the first leg (10) being connected to the body member (5) by a width adjustment means;
the height adjusting device comprises a second fastening piece, a U-shaped clamp (12) clamped on a longitudinal beam (14) of the rubber belt conveyor (1) and a plurality of third mounting holes (13) formed on the first supporting leg (10);
the third mounting holes (13) are arranged at equal intervals along the length direction of the first supporting leg (10), external threads are arranged on the outer circumferential surfaces of the two ends of the U-shaped clamp (12), the two ends of the U-shaped clamp (12) penetrate through the third mounting holes (13) on the first supporting leg (10) and are in threaded connection with the second fastening piece, and therefore the first supporting leg (10) and the longitudinal beam (14) are fixedly connected together.
2. The pedestrian crossing device of claim 1, wherein: the width adjusting device comprises a first fastening piece, an adjusting piece (4) and a plurality of first mounting holes (8) formed on the body piece (5);
the utility model discloses a body piece, including body piece (5) and mounting piece, a plurality of mounting holes (8) are arranged along the length direction equidistant of body piece (5), a plurality of second mounting holes (9) that use with first mounting hole (8) cooperation are seted up along its length direction to regulating piece (4), one end of regulating piece (4) with first landing leg (10) fixed connection, the other end of regulating piece (4) inserts to in body piece (5), first fastener passes mutually coincident first mounting hole (8) with second mounting hole (9), will regulating piece (4) with body piece (5) fixed connection together.
3. The pedestrian crossing device of claim 2, wherein: the first supporting leg (10) and the adjusting piece (4) are made of 12# channel steel, the body piece (5) is made of 14# channel steel, and the first fastening piece comprises a bolt (6) and a nut (7) which are 14 mm by 50 mm.
4. The pedestrian crossing device of claim 1, wherein: the pedestrian pedal (11) is made of embossed steel plates with the thickness of 3 mm.
5. The pedestrian crossing device of any one of claims 2-4, wherein: the first ladder (2) and the second ladder (3) are provided with a first handrail (16), the body piece (5) is provided with a second handrail (17), the lower end of the first handrail (16) is connected with the first supporting leg (10), and the upper end of the first handrail (16) is inserted into the second handrail (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110977122.6A CN113718629B (en) | 2021-08-24 | 2021-08-24 | Pedestrian bridge crossing device applicable to belt conveyor in mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110977122.6A CN113718629B (en) | 2021-08-24 | 2021-08-24 | Pedestrian bridge crossing device applicable to belt conveyor in mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113718629A CN113718629A (en) | 2021-11-30 |
| CN113718629B true CN113718629B (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110977122.6A Active CN113718629B (en) | 2021-08-24 | 2021-08-24 | Pedestrian bridge crossing device applicable to belt conveyor in mine |
Country Status (1)
| Country | Link |
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| CN (1) | CN113718629B (en) |
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| US6585083B2 (en) * | 2000-02-25 | 2003-07-01 | Roland R. Santarlasci | Scaffold construction apparatus and method |
| US20020125073A1 (en) * | 2000-06-10 | 2002-09-12 | William Eaton | Ladder leveling device |
| US20040200669A1 (en) * | 2001-06-25 | 2004-10-14 | Saccente David C. | Retractable ladder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4118816A (en) * | 1977-10-06 | 1978-10-10 | Aurora Equipment Company | Crossover or bridge |
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