CN111691285B - Narrow bridge system with improved structure and capable of preferentially ensuring pedestrian passing - Google Patents
Narrow bridge system with improved structure and capable of preferentially ensuring pedestrian passing Download PDFInfo
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- CN111691285B CN111691285B CN202010576458.7A CN202010576458A CN111691285B CN 111691285 B CN111691285 B CN 111691285B CN 202010576458 A CN202010576458 A CN 202010576458A CN 111691285 B CN111691285 B CN 111691285B
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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
- E01D15/00—Movable or portable bridges; Floating bridges
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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
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
- F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
- F21S9/032—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light the solar unit being separate from the lighting unit
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a narrow bridge system with an improved structure and capable of preferentially ensuring pedestrian passage, relates to the technical field of roads and bridges, and solves the problems that the existing narrow bridge needs to be assembled through multipoint splicing and needs to be adjusted through multipoint control, and the existing narrow bridge does not have the function of rapid assembly and fixation. A narrow bridge system with an improved structure capable of preferentially ensuring pedestrian passage comprises a main bridge frame; the main body of the main body bridge frame is of a concave structure, and a main body bridge plate is fixedly arranged on the inner side of the top of the main body bridge frame; telescopic bridges are arranged inside the two sides of the main body bridge frame and the main body bridge plate in a sliding manner; through being provided with and developing rack and driven gear, for the narrow bridge provides flexible function, can utilize drive gear to drive the final drive shaft rotatory through rotating the assembly axle, utilize to develop the meshing of rack and driven gear and stretch out flexible crane span structure to both sides, the mode suitability through flexible assembly is strong, can be applicable to the place of different width and install.
Description
Technical Field
The invention relates to the technical field of roads and bridges, in particular to a narrow bridge system with an improved structure capable of preferentially ensuring pedestrian passage.
Background
Bridges are generally used to connect roads on both sides of rivers, hollow terrains, and the like, so that vehicles, pedestrians, and the like can smoothly pass through the bridges. Unlike large bridges across rivers and sea, narrow bridges are more suitable for the communication of roads on two sides, such as small-span rivers, hollow terrains and the like. For safety reasons, many large residential communities with "small berms" around their peripheries currently use fixed narrow bridges to connect with external arterial roads.
For example, patent No. CN105603871B discloses a bridge expansion unit member, which includes a movable plate, a center bolt, a displacement column assembly and a bolt support, wherein one end of the movable plate is a comb-teeth end, and the center bolt passes through the movable plate, the bolt support and the displacement column assembly in sequence and is movably connected with the movable plate; the upper end face and/or the lower end face of the bolt supporting piece are/is provided with a rotating layer, and when the movable plate extrudes the rotating layer, the comb teeth end of the movable plate generates a horizontal rotating angle by taking the central bolt as a circle center. The bridge telescopic unit member disclosed by the invention can complete horizontal rotation, vertical rotation and twisting action through the elastic deformation structure of the material, fully meet the displacement of the upper structure of the bridge under the action of external force, and meet the requirement of shock absorption. The bridge expansion device formed by the bridge expansion unit members has independent component functions, prolonged service life and better operation stability, and is favorable for quality monitoring of various links such as manufacturing, installation, replacement, detection and the like.
For example, patent No. CN103850179B discloses a rack-type bridge expansion device, which comprises a rack, an anchoring assembly, a displacement box, a beam, an H-shaped middle beam, an H-shaped edge beam, a pressure spring i, a support i, a pressure spring ii, a support ii, a sliding frame and a waterproof rubber strip; two ends of the cross beam are pre-pressed in the displacement box through a pressure spring I and a support I; the sliding frame is pre-pressed on the beam through a pressure spring II and a support II; the H-shaped edge beam and the displacement box are fixed into a whole; the H-shaped middle beam and the sliding frame are connected into a whole through bolts, and the H-shaped middle beam can move along with the sliding of the sliding frame on the cross beam; the racks are arranged in a staggered mode, one end of each rack is pre-pressed on the H-shaped middle beam through a bolt, and the other end of each rack is pre-pressed on the H-shaped side beam through a bolt. The H-shaped middle beam is connected with the cross beam in a sliding mode through the sliding frame, and displacement is achieved. The novel rack type bridge expansion device has the advantages of stable operation, small impact force, low cost and strong adaptability to the three-dimensional deformation of the bridge.
However, the narrow bridge used at present needs to be assembled through multipoint splicing, needs to be adjusted through multipoint control, does not have the function of quick assembly and fixation, is not beneficial to convenient installation, does not have a protective structure, cannot protect the control node of the narrow bridge through structural protection, is not convenient to use in a remote place, and has great limitation in the application range, so that the existing requirements are not met, and the narrow bridge system with the improved structure and capable of preferentially ensuring pedestrian traffic is provided.
Disclosure of Invention
Problem (A)
The invention aims to provide a narrow bridge system with an improved structure and capable of preferentially ensuring pedestrian passage, and aims to solve the problems that the currently used narrow bridge proposed in the background art needs to be assembled through multi-point splicing, needs to be adjusted through multi-point control, does not have the functions of quick assembly and fixation, is not convenient to install, does not have a protective structure, cannot protect control nodes of the narrow bridge through structural protection, is inconvenient to use in remote places, and has great limitation in application range.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a narrow bridge system with an improved structure capable of preferentially ensuring pedestrian passage comprises a main bridge frame; the main body of the main body bridge frame is of a concave structure, and a main body bridge plate is fixedly arranged on the inner side of the top of the main body bridge frame; telescopic bridges are arranged inside the two sides of the main body bridge frame and the main body bridge plate in a sliding manner; the telescopic bridge frame also comprises a developing rack and a baffle; the bottom of the telescopic bridge is of a concave structure, the inner ends of the concave parts at the bottom of the telescopic bridge are fixedly provided with developing racks, and the developing racks are meshed with the outer side of the driven gear; the two ends of the inner side of the concave part of the telescopic bridge frame are fixedly provided with baffles, and the longitudinal positions of the baffles and the limiting plates are fixed; the inner side of the top of the main body bridge frame is rotatably provided with two groups of main transmission shafts through a shaft frame structure; a locking device is fixedly arranged at one end of the inner side of the main body bridge; the locking device also comprises a band-type brake; the locking device is positioned on one side of the top of the middle groove and is of a concave frame-shaped structure; both sides of the inner end of the locking device are rotatably provided with a band-type brake through a rotating shaft, the inner sides of the band-type brakes are respectively provided with a semi-cylindrical groove, and the inner surfaces of the semi-cylindrical grooves are fixedly provided with a rubber layer through welding; the rubber layer can be attached to the outer side of the assembly shaft after the band-type brake rotates; two ends of the inner side of the main body bridge frame are both provided with two groups of driven gears in a rotating mode through rotating shafts, and the driven gears are meshed with each other in the same side in two groups.
Preferably, the main body bridge frame further comprises a middle groove, a sliding strip and a limiting plate; a middle groove is formed in the middle of the bottom of the main body bridge, one side of the middle groove penetrates through the side of the main body bridge, the top end of the other side of the middle groove penetrates through the main body bridge and is provided with a square hole, and a sealing plate is inserted into the middle groove through the square hole; two groups of sliding strips are integrally arranged on two sides of the inner part of the main body bridge frame; limiting plates are uniformly arranged in the middle of the tops of the two sides of the main body bridge.
Preferably, the main body bridge plate further comprises an assembling shaft and a transmission gear; a cylindrical structure is integrally arranged in the middle of the bottom of the main body bridge plate, a bearing is fixedly arranged in the cylindrical structure through interference fit, and an assembly shaft is fixedly arranged in the bearing through interference fit; the outer end of the bottom of the assembling shaft is integrally provided with a cylindrical structure, and the middle of the bottom of the cylindrical structure is provided with a hexagonal groove; the outer side of the assembling shaft is fixedly provided with a transmission gear through key connection, the transmission gear is a bevel gear, and the tooth surface of the transmission gear faces downwards.
Preferably, the telescopic bridge frame further comprises a sliding groove and a jacking plate; sliding grooves are formed in two sides of the bottom of the telescopic bridge frame, are matched with the shapes of the sliding strips and are arranged outside the sliding strips in a sliding mode; the outer sides of the telescopic bridges are all arranged to be plate-shaped structures, and the inner sides of the bottoms of the telescopic bridges are provided with jacking plates in a uniform mode.
Preferably, two ends of the main transmission shaft are fixedly provided with bevel gears through key connection, and the bevel gears at the inner end of the main transmission shaft are positioned above the middle groove and meshed with the transmission gear; the bevel gears at the outer ends of the main transmission shafts are in transmission connection with a group of driven gears through bevel gears.
Preferably, the locking device further comprises a locking frame and a locking screw rod; the inner side of the bottom of the locking device is slidably provided with a locking frame, two groups of connecting shaft structures are integrally arranged on the outer side of the locking frame, and two ends of the outer side of the locking frame are rotatably connected with the inner sides of the two groups of band-type brakes through the connecting shaft structures matched with the rotating shaft; a through hole is formed in the middle of the outer part of the locking device and penetrates through one side of the main body bridge, and a locking screw rod penetrates through the through hole; the middle of the rear end of the locking frame is provided with a screw hole, and the outer side of the locking screw rod is sleeved with a spring and penetrates through the locking frame to be fixedly connected.
Preferably, the main body of the closing plate is of an L-shaped structure, and the bottom of the rear side of the closing plate is integrally provided with a locking structure; the rear ends of the two sides of the middle groove are provided with locking structures in a uniform mode, the locking structures of the sealing plates are aligned with the locking structures of the two sides of the middle groove after the sealing plates are inserted into the middle groove, and meanwhile the corners of the sealing plates are blocked outside the locking screw rods.
Preferably, guardrail structures are integrally arranged on the tops of the two sides of the main bridge frame and the telescopic bridge frame and are in staggered sliding connection, photovoltaic power generation plates are fixedly arranged outside the guardrail structures, and inverters and power storage devices are arranged at the bottoms of the photovoltaic power generation plates; the guardrail structure top inboard of main part crane span structure and flexible crane span structure all fixedly is provided with the light, and the light is connected with the battery of photovoltaic power generation board bottom, and the series connection is provided with the light sense switch simultaneously.
(III) advantageous effects
The invention provides a narrow bridge system with an improved structure, which can preferentially ensure the passage of pedestrians, and is provided with a developing rack and a driven gear, so that a telescopic function is provided for a narrow bridge, a transmission gear can be used for driving a main transmission shaft to rotate by rotating an assembly shaft, the telescopic bridge is extended to two sides by meshing of the developing rack and the driven gear, the adjustment can be controlled by a single point, the function of quick assembly and fixation is provided, and the telescopic assembly mode has strong applicability and can be suitable for being installed in places with different widths.
Secondly, locking device and closing plate's setting provide fixed function for the narrow bridge, and locking device can utilize slider mechanism to lock, will assemble the axle and fix, keeps the monolithic stationary of narrow bridge, and the closing plate can seal the intermediate tank to the through-hole that will adjust locking screw is sheltered from the protection, can guarantee to assemble the narrow bridge by the installer, and the security is strong.
Moreover, the setting of photovoltaic power generation board and light provides the illumination function for the narrow bridge, and photovoltaic power generation board and light are setting respectively, can move respectively through respective circuit, can not receive the slip influence of main part crane span structure and flexible crane span structure, can use the remote place in the place that can't utilize the commercial power to throw light on, but the range of application is extensive.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic bottom view of the embodiment of the present invention;
FIG. 3 is a schematic structural view of an expanded state in an embodiment of the present invention;
FIG. 4 is a schematic illustration of a disassembled structure in an embodiment of the present invention;
FIG. 5 is a bottom view of the embodiment of the present invention;
FIG. 6 is a schematic bottom view of an embodiment of the retractable bridge of the present invention;
FIG. 7 is an enlarged partial structural view of part A in the embodiment of the present invention;
FIG. 8 is an enlarged partial structural view of a portion B in the embodiment of the present invention;
FIG. 9 is an enlarged view of a portion C according to an embodiment of the present invention;
in fig. 1 to 9, the correspondence between the part names or lines and the reference numbers is:
1. a main body bridge; 101. an intermediate tank; 102. a slide bar; 103. a limiting plate; 2. a main body bridge plate; 201. assembling a shaft; 202. a transmission gear; 3. a telescopic bridge frame; 301. developing the rack; 302. a baffle plate; 303. a chute; 304. a jacking plate; 4. a main drive shaft; 5. a locking device; 501. contracting brake; 502. a locking frame; 503. locking the screw rod; 6. a closing plate; 7. a driven gear; 8. a photovoltaic power generation panel; 9. an illuminating lamp.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The light-sensitive switch (model number XW-GK-1) mentioned in the invention can be obtained by private customization or market purchase.
Referring to fig. 1 to 9, an embodiment of the present invention includes: a narrow bridge system with an improved structure capable of preferentially ensuring pedestrian passage comprises a main bridge frame 1; the main body bridge frame 1 further comprises a middle groove 101, a sliding strip 102 and a limiting plate 103; the middle of the bottom of the main bridge frame 1 is provided with a middle groove 101, one side of the middle groove 101 penetrates through the side of the main bridge frame 1, the top end of the other side of the middle groove 101 penetrates through the main bridge frame 1 and is provided with a square hole, and a sealing plate 6 is inserted into the middle groove 101 through the square hole; two groups of sliding strips 102 are integrally arranged on two sides in the main body bridge frame 1; wherein, the middle parts of the top parts of the two sides of the main body bridge frame 1 are uniformly provided with a limiting plate 103; the main body of the main body bridge frame 1 is of a concave structure, and a main body bridge plate 2 is fixedly arranged on the inner side of the top of the main body bridge frame 1; wherein, the main body bridge plate 2 further comprises an assembling shaft 201 and a transmission gear 202; wherein the middle of the bottom of the main body bridge plate 2 is integrally provided with a cylinder structure, a bearing is fixedly arranged in the cylinder structure through interference fit, and an assembly shaft 201 is fixedly arranged in the bearing through interference fit; wherein the outer end of the bottom of the assembling shaft 201 is integrally provided with a cylindrical structure, and the middle of the bottom of the cylindrical structure is provided with a hexagonal groove; wherein, the outer side of the assembling shaft 201 is fixedly provided with a transmission gear 202 through key connection, the transmission gear 202 is a bevel gear, and the tooth surface of the transmission gear 202 faces downwards; wherein the telescopic bridges 3 are arranged inside the two sides of the main body bridge 1 and the main body bridge plate 2 in a sliding manner; the telescopic bridge 3 also comprises a developing rack 301 and a baffle 302; the bottom of the telescopic bridge frame 3 is of a concave structure, the inner ends of the concave parts at the bottom of the telescopic bridge frame 3 are fixedly provided with developing racks 301, and the developing racks 301 are meshed with the outer side of the driven gear 7; the baffle plates 302 are fixedly arranged at the two ends of the inner side of the concave part of the telescopic bridge frame 3, and the longitudinal positions of the baffle plates 302 and the limiting plate 103 are fixed; wherein, the telescopic bridge frame 3 also comprises a sliding chute 303 and a jacking plate 304; sliding grooves 303 are formed in two sides of the bottom of the telescopic bridge 3, and the sliding grooves 303 are matched with the shape of the sliding strip 102 and are arranged outside the sliding strip 102 in a sliding mode; the outer sides of the telescopic bridges 3 are all provided with plate-shaped structures, and the inner sides of the bottoms of the telescopic bridges 3 are uniformly provided with tightening plates 304 in a whole manner; wherein, the inner side of the top of the main body bridge frame 1 is rotationally provided with two groups of main transmission shafts 4 through a shaft bracket structure; wherein, two ends of the main transmission shaft 4 are fixedly provided with bevel gears through key connection, and the bevel gears at the inner end of the main transmission shaft 4 are positioned above the middle groove 101 and meshed with the transmission gear 202; wherein, the bevel gears at the outer end of the main transmission shaft 4 are in transmission connection with a group of driven gears 7 through the bevel gears; wherein, one end of the inner side of the main body bridge frame 1 is fixedly provided with a locking device 5; wherein, the locking device 5 also comprises a locking frame 502 and a locking screw 503; the inner side of the bottom of the locking device 5 is provided with a locking frame 502 in a sliding manner, the outer side of the locking frame 502 is integrally provided with two sets of connecting shaft structures, and the two ends of the outer side of the locking frame 502 are rotatably connected with the inner sides of the two sets of band-type brakes 501 through the connecting shaft structures matched with rotating shafts; wherein, a through hole is arranged in the middle of the outer part of the locking device 5 and penetrates through one side of the main body bridge frame 1, and a locking screw 503 is arranged in the through hole in a penetrating way; wherein, the middle of the rear end of the locking frame 502 is provided with a screw hole, and the outer side of the locking screw 503 is sleeved with a spring and passes through the locking frame 502 for fixed connection; wherein the locking device 5 also comprises a band-type brake 501; wherein the locking device 5 is positioned at one side of the middle top of the middle groove 101, and the locking device 5 is of a concave frame-shaped structure; wherein, both sides of the inner end of the locking device 5 are rotatably provided with a band-type brake 501 through a rotating shaft, the inner sides of the band-type brakes 501 are both provided with a semi-cylindrical groove, and the inner surfaces of the semi-cylindrical grooves are both fixedly provided with rubber layers through welding; after the band-type brake 501 rotates, the rubber layer can be attached to the outer side of the assembly shaft 201; wherein, two ends of the inner side of the main body bridge frame 1 are both provided with two groups of driven gears 7 through rotating shafts, and the driven gears 7 are meshed with each other at the same side.
The main body of the closing plate 6 is of an L-shaped structure, and the bottom of the rear side of the closing plate 6 is integrally provided with a lock catch structure; wherein, the rear ends of both sides of the middle groove 101 are integrally provided with a locking structure, and after the closing plate 6 is inserted into the middle groove 101, the locking structure of the closing plate 6 is aligned with the locking structures of both sides of the middle groove 101, and the corners of the closing plate 6 are blocked outside the locking screw 503.
The top parts of the two sides of the main bridge frame 1 and the telescopic bridge frame 3 are integrally provided with guardrail structures and are in staggered sliding connection, the photovoltaic power generation plates 8 are fixedly arranged outside the guardrail structures, and the bottoms of the photovoltaic power generation plates 8 are provided with inverters and power storage devices; wherein the guardrail structure top inboard of main part crane span structure 1 and flexible crane span structure 3 all is fixed and is provided with light 9, and light 9 is connected with the battery of photovoltaic power generation board 8 bottoms, and the series connection is provided with the light sense switch simultaneously.
The working principle is as follows: during assembly, the spacing distance of the installation positions is measured in advance, the assembly shaft 201 is rotated by using tools such as inner hexagons and the like, the assembly shaft 201 drives the transmission gear 202 to rotate, the transmission gear 202 drives the two groups of main transmission shafts 4 to rotate in opposite directions, the two ends of each main transmission shaft 4 drive the driven gears 7 on the two sides of the main bridge frame 1 to rotate through the bevel gears, the driven gears 7 are meshed with each other to push the development racks 301 on the two sides outwards, and the telescopic bridge frames 3 on the two sides are opened; after the telescopic bridge 3 is extended to a length that can be mounted on the top of the mounting position, the main bridge 1 is suspended at the position to be mounted by a tool such as a crane.
After the main bridge frame 1 is placed, an installer continues to rotate the assembling shaft 201 at the bottom of the middle groove 101 to further expand the telescopic bridge frame 3, the telescopic bridge frame 3 is attached to the mounting point of the top tightening plate 304, then the locking screw 503 is screwed, the locking frame 502 is tightened by means of thread transmission of the locking screw 503, and the assembling shaft 201 is locked and fixed by tightening the internal contracting brake 501 through the locking frame 502. After the fixing shaft 201 is locked, the closing plate 6 is inserted into the intermediate groove 101 and fixed by the anti-theft lock.
The photovoltaic power generation board 8 can absorb solar power generation in daytime and generate electric energy after conversion through the inverter to be collected in the storage battery, and the illuminating lamps 9 can utilize the light sense switch to start each group of illuminating lamps 9 at night to illuminate the narrow bridge.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (1)
1. The utility model provides a narrow bridge system of improvement structure that can guarantee pedestrian's is current preferentially which characterized in that: comprises a main body bridge frame (1); the main body of the main body bridge (1) is of a concave structure, and a main body bridge plate (2) is fixedly arranged on the inner side of the top of the main body bridge (1); telescopic bridges (3) are arranged inside two sides of the main body bridge (1) and the main body bridge plate (2) in a sliding manner; the telescopic bridge (3) also comprises a developing rack (301) and a baffle (302); the bottom of the telescopic bridge (3) is of a concave structure, the inner ends of the concave parts at the bottom of the telescopic bridge (3) are fixedly provided with developing racks (301), and the developing racks (301) are meshed with the outer side of the driven gear (7); baffles (302) are fixedly arranged at two ends of the inner side of the concave part of the telescopic bridge (3), and the longitudinal positions of the baffles (302) and the limiting plate (103) are fixed; the inner side of the top of the main body bridge frame (1) is rotatably provided with two groups of main transmission shafts (4) through a shaft frame structure; a locking device (5) is fixedly arranged at one end of the inner side of the main body bridge (1); the locking device (5) further comprises a band-type brake (501); the locking device (5) is positioned on one side of the top of the middle groove (101), and the locking device (5) is of a concave frame-shaped structure; both sides of the inner end of the locking device (5) are rotatably provided with a band-type brake (501) through a rotating shaft, the inner sides of the band-type brakes (501) are respectively provided with a semi-cylindrical groove, and the inner surfaces of the semi-cylindrical grooves are fixedly provided with rubber layers through welding; the rubber layer of the band-type brake (501) can be attached to the outer side of the assembly shaft (201) after rotation; two groups of driven gears (7) are rotatably arranged at two ends of the inner side of the main body bridge (1) through rotating shafts, and the two groups of driven gears (7) are meshed with each other at the same side;
the main body bridge (1) further comprises a middle groove (101), a sliding strip (102) and a limiting plate (103); a middle groove (101) is formed in the middle of the bottom of the main body bridge (1), one side of the middle groove (101) penetrates through the side of the main body bridge (1), the top end of the other side of the middle groove (101) penetrates through the main body bridge (1) and is provided with a square hole, and a sealing plate (6) is inserted into the middle groove (101) through the square hole; two groups of sliding strips (102) are integrally arranged on two sides in the main body bridge (1); the middle parts of the tops of the two sides of the main body bridge (1) are uniformly provided with a limiting plate (103) in a whole manner;
the main body bridge plate (2) further comprises an assembling shaft (201) and a transmission gear (202); a cylindrical structure is integrally arranged in the middle of the bottom of the main body bridge plate (2), a bearing is fixedly arranged in the cylindrical structure through interference fit, and an assembling shaft (201) is fixedly arranged in the bearing through interference fit; the outer end of the bottom of the assembling shaft (201) is integrally provided with a cylindrical structure, and the middle of the bottom of the cylindrical structure is provided with a hexagonal groove; the outer side of the assembling shaft (201) is fixedly provided with a transmission gear (202) through key connection, the transmission gear (202) is a bevel gear, and the tooth surface of the transmission gear (202) faces downwards;
the telescopic bridge (3) also comprises a sliding groove (303) and a tightening plate (304); sliding grooves (303) are formed in two sides of the bottom of the telescopic bridge (3), and the sliding grooves (303) are matched with the sliding strips (102) in shape and are arranged outside the sliding strips (102) in a sliding mode; the outer sides of the telescopic bridges (3) are all provided with plate-shaped structures, and the inner sides of the bottoms of the telescopic bridges (3) are uniformly provided with tightening plates (304) in a whole manner;
two ends of the main transmission shaft (4) are fixedly provided with bevel gears through key connection, and the bevel gears at the inner ends of the main transmission shaft (4) are positioned above the middle groove (101) and meshed with the transmission gear (202); bevel gears at the outer ends of the main transmission shafts (4) are in transmission connection with a group of driven gears (7) through bevel gears;
the locking device (5) also comprises a locking frame (502) and a locking screw rod (503); the inner side of the bottom of the locking device (5) is provided with a locking frame (502) in a sliding manner, the outer side of the locking frame (502) is integrally provided with two sets of connecting shaft structures, and the two ends of the outer side of the locking frame (502) are rotatably connected with the inner sides of the two sets of band-type brakes (501) through the connecting shaft structures matched with rotating shafts; a through hole is formed in the middle of the outer part of the locking device (5) and penetrates through one side of the main body bridge (1), and a locking screw rod (503) penetrates through the through hole; a screw hole is formed in the middle of the rear end of the locking frame (502), and a spring is sleeved on the outer side of the locking screw rod (503) and penetrates through the locking frame (502) to be fixedly connected;
the main body of the closing plate (6) is of an L-shaped structure, and the bottom of the rear side of the closing plate (6) is integrally provided with a lock catch structure; the rear ends of the two sides of the middle groove (101) are integrally provided with lock catch structures, and after the closing plate (6) is inserted into the middle groove (101), the lock catch structures of the closing plate (6) are locked with the two sides of the middle groove (101);
guardrail structures are integrally arranged at the tops of the two sides of the main bridge (1) and the telescopic bridge (3) and are in staggered sliding connection, a photovoltaic power generation plate (8) is fixedly arranged outside each guardrail structure, and an inverter and an electric power storage device are arranged at the bottom of each photovoltaic power generation plate (8); the inner sides of the tops of the guardrail structures of the main bridge frame (1) and the telescopic bridge frame (3) are fixedly provided with illuminating lamps (9), the illuminating lamps (9) are connected with a storage battery at the bottom of the photovoltaic power generation plate (8), and meanwhile, light sensitive switches are arranged in series;
during assembly, the spacing distance of the installation positions is measured in advance, an inner hexagonal tool is utilized to rotate an assembly shaft (201), the assembly shaft (201) drives a transmission gear (202) to rotate, the transmission gear (202) drives two groups of main transmission shafts (4) to rotate in opposite directions, two ends of each main transmission shaft (4) drive driven gears (7) on two sides of a main bridge (1) to rotate through bevel gears, the driven gears (7) are meshed with each other to push racks (301) on two sides outwards, and telescopic bridges (3) on two sides are opened; after the telescopic bridge frame (3) is expanded to the length capable of being carried on the top of the installation position, the main bridge frame (1) is suspended at the position needing to be installed through a crane;
after the main bridge frame (1) is placed, an installer continues to rotate the assembling shaft (201) at the bottom of the middle groove (101) to further expand the telescopic bridge frame (3), the telescopic bridge frame (3) is attached to a mounting point through the top tightening plate (304), then the locking screw (503) is tightened, the locking frame (502) is tightened through the thread transmission of the locking screw (503), and the assembling shaft (201) is locked and fixed through the locking frame (502) by tightening the band-type brake (501); after the assembly shaft (201) is locked and fixed, the closing plate (6) is inserted into the middle groove (101) and is fixed by using an anti-theft lock;
photovoltaic power generation board (8) can absorb solar energy power generation and produce the electric energy and collect in the battery after the conversion through the dc-to-ac converter daytime, and light (9) can utilize light sense switch to start each group light (9) night, provide the illumination to the narrow bridge.
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| CN202010576458.7A CN111691285B (en) | 2020-06-22 | 2020-06-22 | Narrow bridge system with improved structure and capable of preferentially ensuring pedestrian passing |
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| CN111691285B true CN111691285B (en) | 2021-09-17 |
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| CN209178795U (en) * | 2018-10-17 | 2019-07-30 | 胡昕 | The interim passageway frame in construction site |
| CN210177344U (en) * | 2019-04-30 | 2020-03-24 | 四川蓝海智能装备制造有限公司 | Inverted arch trestle |
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| DE3508437A1 (en) * | 1984-03-12 | 1985-09-12 | Société de Dietrich, Niederbronn-Les-Bains | LIGHTWEIGHT, MOBILE FRAMEWORK BRIDGE FOR OVERCOME TOPOGRAPHIC OBSTACLES BY MOVING DEVICE AND VARIOUS VEHICLES |
| CN202416155U (en) * | 2011-12-07 | 2012-09-05 | 北京市三一重机有限公司 | Combined overpass and bridge body module thereof |
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| CN210177344U (en) * | 2019-04-30 | 2020-03-24 | 四川蓝海智能装备制造有限公司 | Inverted arch trestle |
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