81 results about "Fixed Bridges" patented technology

The invention discloses a double-layer bridge for expressway extension and a construction method. The double-layer bridge comprises a bridge body arranged along an expressway, and the bridge body comprises a first beam body and a second beam body arranged below the first beam body; the first beam body comprises a plurality of first beam sections and a plurality of second beam sections which are fixedly connected, and the first beam sections are arranged side by side in the direction perpendicular to the width direction of the beam body; the second beam sections are arranged side by side in the width direction of the beam body. The second beam body comprises a plurality of sub-beams which are fixedly connected, the sub-beams are arranged side by side in the direction perpendicular to the width direction of the beam body, and the sub-beams are continuously arranged in the width direction of the beam body; a plurality of suspenders fixedly connected with the first beam body are arranged on the second beam body; the double-layer bridge further comprises a plurality of bridge piers used for fixing the bridge body. A navigable river channel corresponds to the lower portion of at least part of the area of the second beam body, and no pier is arranged in the area of the navigable river channel.

A system and method for determination of parameters for the set up of fixed bridges for photovoltaic power plants. The system obtains user input comprising a first set of parameters associated with a fixed bridge from a user device. Further, the system determines a second set of parameters associated with the fixed bridge based on the first set of parameters. Furthermore, the system renders the determined second set of parameters including a first parameter indicative of a gap between a module edge of the first solar panel and a module edge of the second solar panel, a second parameter indicative of a slope angle across the fixed bridge, a third parameter indicative of a maximum angular difference between two sides of the fixed bridge, and a fourth parameter indicative of the width of a flat surface associated with a fail-safe location of an electronic device.

Railing system with railing panels (1) for privacy and wind protection and for fall protection for a balcony, a loggia or a terrace with a base profile (3) and a handrail (4), with parallel rungs arranged between a base profile (3) and the handrail (4), which are firmly anchored both in the base profile (3) and on the handrail (4), characterized in that - that these rungs are designed as tension bars (5), and - that at least two mounting tubes (9) running parallel to the longitudinal axis of the tensioning bars (5) are arranged inside the tensioning bars (5), and - that the tension bars (5) are firmly connected to both the base profile (3) and the handrail (4) by means of mounting screws (10) arranged in the mounting tubes (9), positioned exactly in the correct position, and - that the tensioning webs (5) have end faces (6) on the fall-side in which profile receiving grooves (7) extending over the entire height of the tensioning webs (5) are arranged or incorporated, and - that elastomer profiles (8) are arranged, anchored or linked in the profile receiving grooves (7), and - that the elastomer profiles (8) arranged in the profile receiving grooves (7) of the tensioning webs (5) each have a plate support web (14) on their leading edges opposite the profile receiving groove (7), and - that, for fastening the railing panels (1), plate mounting surfaces (13) are arranged both at the top, i.e. along the upper edge of the railing panels (1), and at the bottom, i.e. along the lower edge of the railing panels (1), in the longitudinal direction of the railing system on the fall-side, running parallel to each other, and - that these plate mounting surfaces (13) are arranged on the one hand directly on the bottom, i.e. along the lower edge of the railing plates (1), or on a floor fixing web (11) arranged between the tension bars (5) fixedly on the floor profile (3), and - that these plate mounting surfaces (13) are also arranged at the top, i.e. along the upper edge of the railing panels (1), either directly on the handrail (4) itself, or on a fastening profile (30) designed as a groove profile (28), which together with the handrail cover (32) forms the handrail (4), or that these plate mounting surfaces (13) are also arranged at the top, i.e. along the upper edge of the railing panels (1), on a fastening web (12) spaced parallel to the handrail (4) and fixedly arranged between the tension webs (5), and - that these plate mounting surfaces (13) are always arranged opposite the end faces (6) of the tensioning webs (5) such that the plate support webs (14) of the elastomer profiles (8) arranged in the profile receiving grooves (7) of the end faces (6) clearly project beyond the respective plate mounting surfaces (13) of the railing system on the fall-side before the railing panels (1) are mounted, and - that each of the railing panels (1) is firmly clamped against the panel mounting surfaces (13) of the components arranged adjacent to the tensioning web (5) in the final assembly state, and - that in the final assembly state each of the railing panels (1) is simultaneously in contact with several panel support webs (14) of the elastomer profiles (8) arranged in the profile receiving grooves (7) of the tensioning webs (5) over its entire height under elastic prestress.

The present invention relates to a height difference compensation device for an open bridge, comprising a mounting crossbeam, a connecting pin, a double-hinged connecting load-bearing beam, a cover plate, a trolley frame, a large wheel group, a small wheel group, a tail plate, a right hinge plate, a left hinge plate, a left hinge plate cover plate, a hinge plate pin, a right hinge plate cover plate and a tail plate cover plate. The present invention connects the bridge deck of a movable bridge frame with a height difference and the bridge deck of a fixed bridge frame through the trolley frame, the cover plate and the tail plate cover plate through the height difference compensation device for an open bridge, so that the vehicle can safely pass the junction of the movable bridge frame and the fixed bridge frame with a height difference; the connection mechanism composed of the mounting crossbeam, the connecting pin and the double-hinged connecting load-bearing beam can rotate around the connecting pin, and when the height difference changes, the connecting pin rotates to change the inclination of the double-hinged connecting load-bearing beam to achieve compensation for different height differences.

The bridge device for the communication cable comprises a bridge and a containing groove which is formed in the bridge and used for bearing the cable, the bridge is connected with one end of a supporting piece, the other end of the supporting piece is fixed to a wall face, a guiding assembly is arranged at the corner of the bridge and comprises a fixing piece and a rolling piece, the fixing piece is arranged at the corner of the bridge, and the rolling piece is arranged at the corner of the bridge. The rolling part is arranged on the fixing part, the surface of the rolling part and the surface of the cable are in relative rolling friction, and during relative rolling friction, the surface of the cable gradually makes contact with the concave-convex face of the rolling part from bottom to top. According to the utility model, the fixing parts are arranged at the corners of the bridge, and the rolling parts are arranged at proper positions, so that when the cable is pulled, rolling friction is generated between the rolling parts and the cable, the resistance is reduced, meanwhile, the concave-convex surfaces of the rolling parts can guide the cable to move upwards and lift the cable at the corners, the contact between the cable and the accommodating groove in an area with larger resistance is reduced, and the cable is prevented from being damaged. Cable routing is facilitated, the pulling force is reduced, and the fixing position of the bridge and the wall is prevented from loosening.

A lower-layer longitudinally moving and opening bridge, comprising a lower-layer structure and an upper-layer structure. A lower-layer track beam is arranged along the length direction of the bridge under the lower part of the upper main beam. A load-bearing track and a driving track are provided on the lower-layer track beam. The lower-layer movable bridge is supported on the load-bearing track by a suspension guiding mechanism. The lower-layer movable bridge is also provided with a suspension driving mechanism that cooperates with the driving track. The lower-layer movable bridge is driven by the suspension driving mechanism and longitudinally moves along the load-bearing track to realize the opening and closing of the bridge. After the opening and closing are in place, the locking between the lower-layer movable bridge and the load-bearing track is realized through a rigid locking mechanism. The height difference between the bridge decks of the lower-layer fixed bridge and the movable bridge is smoothly transitioned through a movable height difference compensation device to form a continuous slope. By providing a lower-layer longitudinally moving and opening bridge, the present invention solves the problem of the simultaneous normal passage of traffic on the bridge and large ships under the condition of limited longitudinal slope, and at the same time avoids the disadvantages of traffic interruption and the inability of vehicle traffic to pass when the bridge is opened.

The present invention relates to a cable bridge for an apartment building, which is used for laying cables in the apartment building, and comprises: fixed bridge parts which are located on ceilings on both sides of a vehicle channel and on which cables are laid; a moving bridge part connecting the fixed bridge parts located on both sides of the vehicle lane, detachably coupled to the fixed bridge parts, and mounted to be movable up and down; when the total height of vehicles passing through the vehicle channel is larger than the height of the movable bridge part, the bridge driving part moves the movable bridge part upwards, so that the height of the movable bridge part is larger than the height of the fixed bridge part, and the vehicles can pass through the movable bridge part; the fixed support bar supports the cable by bending the cable such that the length of the cable is greater than the length of the movable bridge portion and the cable has an extra length, thereby preventing upward movement of the movable bridge portion from being restricted due to the length of the cable when the movable bridge portion moves upward.

The invention discloses a welding device for a corner part of a cable bridge, and particularly relates to the welding technology, the welding device comprises a base, and center positioning structures for fixing the center of the bridge are distributed in the middle of the upper end of the base in an array mode; a corner positioning structure fixedly connected with the lower end of a telescopic rod of the telescopic control cabinet and used for positioning the corner angle of the bridge is arranged on the top wall of an inner cavity of the shell, and a rotary arm welding device is arranged on the front side of the corner positioning structure through a sliding rail. The corner positioning structure moves up and down to press, fix and release a bridge frame, the center positioning structure clamps, supports and positions the center of the bridge frame, the corner positioning structure adjusts and locks the corner angle of the bridge frame, the rotating arm welding equipment accurately welds the corner part through sliding rail movement, all the structures cooperate with one another, the layout is scientific and reasonable, and the welding efficiency is improved. And a foundation is laid for precise development of positioning, angle adjustment and welding operation, the stability and efficiency of the whole operation are effectively improved, and the welding precision and quality are guaranteed.

The present invention relates to the technical field of bridge welding construction, and specifically to a steel structure welding device and method for bridge construction, comprising a welding table, a bridge frame clamping mechanism, a lining rod clamping mechanism and a linkage adjustment structure; the bridge frame clamping mechanism is used to fix the upper and lower main beams of the bridge frame; the lining rod clamping mechanism is arranged at the upper end of the bridge frame clamping mechanism, the lining rod clamping mechanism comprises a second clamping assembly, the second clamping assembly comprises two clamping plates and a third driving structure, the third driving structure drives the two clamping plates to approach or move away from each other; there are two linkage adjustment structures, the two linkage adjustment structures are respectively arranged at the two ends of the lining rod clamping mechanism, and the linkage adjustment structure enables the position of the lining rod clamping mechanism to change with the operation of the bridge frame clamping mechanism; the present invention arranges the bridge frame clamping mechanism, the lining rod clamping mechanism and the linkage adjustment structure, so as to avoid manual adjustment of the position of the lining rod on the bridge frame.

A holder includes a fastening section for fastening to a helmet shell and a coupling section for connecting to a neck strap. The coupling section has a first side, a second side, a first marginal section, a second marginal section, and one or more connection bridges that each permanently connect the first marginal section and the second marginal section to one another. At least one fixing bridge that can be moved from a position in which it does not connect the first and second marginal sections to one another into a fixing position in which it connects the first and second marginal sections to one another. A continuous center section of the neck strap can be arranged at the connection bridges and a part section of the center section can be brought through a free space where it can be engaged through by the at least one fixing.

The utility model relates to the technical field of processing tooling for shell-type products, and in particular to a processing tooling for shell-type products, including a base and a bridge shell, a receiving groove is provided at the top of the base, a screw is rotatably connected inside the receiving groove, a hexagonal plate is fixedly connected to one end of the screw located on the outer side of the base, a slider is provided on the outer side of the screw that is threadedly connected through a threaded hole, a flat plate is fixedly connected to the top of the slider, a vertical rod is fixedly connected to the top of the flat plate, a fixing ring is fixedly connected to the top of the vertical rod, a fixing groove is provided inside the fixing ring, and through the provided receiving groove, screw, hexagonal plate, slider, vertical rod and fixing ring, the distance between the fixing rings of the fixed bridge shell can be adjusted, and when fixing bridge shells of different models, the spacing can be adjusted as needed, and the position of the center of the bridge shell above the base can also be adjusted.

The invention discloses a UHPC bridge deck slab integrally poured steel-UHPC prefabricated combined box girder which comprises a plurality of segments, and each segment comprises a steel box girder and a UHPC bridge deck slab integrally poured on the top face of the steel box girder; the steel box girder comprises a top plate, a bottom plate, inclined webs, side webs, middle webs, small longitudinal beams and transverse partition plates of a steel structure. The top plate is arranged on the side webs, the middle webs, the small longitudinal beams and the transverse partition plates and is welded and fixed; a double-layer reinforcing mesh is laid in the UHPC bridge deck slab, and after the UHPC bridge deck slab is integrally poured and formed on the top plate, the UHPC bridge deck slab and the steel box girder form an integral stress structure through connecting pieces; the UHPC bridge deck slab is locally thickened at the positions corresponding to the joints of the top plate, the side webs, the middle webs and the small longitudinal beams. The steel box girder top plate is not only a stress structure, but also a formwork for pouring the UHPC bridge deck slab. The UHPC bridge deck slab is integrally formed through pouring, wet joints between traditional prefabricated slabs are avoided, high-altitude operation is avoided through factory pouring, and the integrity, durability and engineering quality of the bridge deck structure are greatly improved.

The utility model discloses an adjusting device for 3D printing bone filler, and relates to the technical field of medical instruments. The adjusting device for the 3D printing bone filler comprises a base, and a movable sleeve is arranged on one side of the base in a sliding mode. According to the adjusting device for the 3D printing bone filler, by adjusting the positions of a movable sleeve and an adjusting head, a clamping mechanism is located over the position needing to be connected, after a bridging rod block is fixed, a toothed bar is pressed downwards, the toothed bar moves left and right under the pressure, the bridging rod block is made to approach the connecting position, and then the bridging rod block is fixed. After the positions of the movable sleeve and the adjusting head are further adjusted, the toothed bar is continuously pressed downwards, and the limiting gear is blocked by the bayonet lock, so that the bridging rod block is accurately and tightly pressed at the joint, the bridging rod block is more stable when fixed, the position of the bridging rod block is convenient to adjust, the structure is simple, the operation is convenient, and the operation efficiency is improved.

The utility model discloses a kind of temporary bridge deck for water conservancy project, including pier, installation sleeve is arranged outside the pier, rotating drum is arranged on the installation sleeve, threaded rod one is arranged inside the rotating drum, the top of threaded rod one is fixedly connected with fixed bridge plate, connecting bridge plate is arranged in the side of fixed bridge plate, sliding block is arranged inside the fixed bridge plate, the one end of sliding block is movably hinged with reinforcing plate, clamping groove is opened in the side of fixed bridge plate, clamping block is arranged inside the clamping groove, threaded rod two is arranged on support frame, the one end of threaded rod two is provided with movable plate. The utility model moves up and down in sleeve inside by rotating threaded rod one, the height of fixed bridge plate is adjusted, to ensure that fixed bridge plate and connecting bridge plate keep same horizontal plane when installing, avoid being influenced by water surface fluctuation and lead to the situation that bridge plate connection is difficult, by inserting clamping block into clamping groove, and inserting rod is inserted into insertion hole, improve the efficiency that staff builds bridge plate.

The application discloses a detachable digital guide plate for assisting fiber post and resin core repair and a manufacturing method. The detachable digital guide plate comprises a base guide plate and a post core guide plate assembled through a mortise and tenon joint structure. The guide plate is manufactured by using digital technology, fully considering the complexity and individual differences of the root canal morphology of natural teeth, and setting the post core position with the expected repair effect as the target, effectively assisting the accurate positioning and forming of the post core in the tooth defect repair, the fiber post bonding and the resin nucleation, especially suitable for the complex repair treatment of the multi-abutment row joint crown or fixed bridge. Not only can the guide plate assist the accurate positioning and bonding of the fiber post, but also can control the nucleation space position and shape of each post core, effectively assist the multi-abutment to obtain the common positioning channel, reduce the clinical operation difficulty, improve the operation accuracy and the quality of the oral repair treatment, and reduce the tooth preparation time of the clinician at the chair.

The invention discloses a cable grid bridge frame system and a turning bridge frame, the cable grid bridge frame system comprises a turning bridge frame and two linear grid bridge frames, the turning bridge frame is composed of a plurality of bridge frame units arranged in a divergent manner, and an inner arc-shaped structure and an outer arc-shaped structure are formed; each bridge unit comprises two parallel U-shaped wefts and a plurality of radial units, and each U-shaped weft comprises an outer vertical beam, a bottom beam and an inner vertical beam; the outer side edge and the inner side edge of the turning bridge frame are connected with the linear bridge frame through an arc-shaped outer connecting belt and an arc-shaped inner connecting belt respectively; the inner side of the arc-shaped connecting band is provided with a plurality of elastic fasteners which are integrally formed by punching and are used for firmly fixing the outer vertical beam and the inner vertical beam of the bridge unit; through the synergistic effect of the arc-shaped connecting belts and the elastic buckles, the stability and reliability of the bridge system are enhanced; according to the technical means, no complex mold is needed, the production cost is reduced, meanwhile, the on-site construction process is simplified, a constructor only needs to align the elastic buckling piece to the vertical beam and press the elastic buckling piece into the vertical beam, connection can be completed, and cutting or welding operation is not needed.

The utility model discloses a sealing structure for coordinated construction of decoration and electromechanical engineering, including a floor slab, a mounting groove is provided on the top of the floor slab, a bridge is inserted and connected to the inner wall of the bottom end of the mounting groove, a sealing component is provided at the connection between the bridge and the mounting groove, a fixing component for fixing the position of the bridge is provided at the connection between the mounting groove and the bridge; the sealing component includes a fixing plate inserted and connected inside the mounting groove, and a first sealing ring is provided at the connection between the fixing plate and the bridge. The utility model is designed with a fixing plate, a first sealing ring, a second sealing ring and a positioning member. When in use, the first sealing ring and the second sealing ring are used to seal the connection between the fixing plate, the mounting groove and the bridge, and the positioning member is used to fix the position of the fixing plate to seal the connection between the floor slab and the bridge, thereby preventing water stains from flowing downward along the gaps on the floor slab.

The utility model relates to the technical field of U-shaped cable clamps, in particular to a U-shaped cable clamp for fixing a bridge body, which comprises a U-shaped sleeve, a toggle clip is arranged on the side face of the U-shaped sleeve, two nuts are arranged on the side face of the U-shaped sleeve, two limiting shafts are fixedly arranged at the top end of the U-shaped sleeve, a plurality of positioning grooves are formed in the two limiting shafts, and the U-shaped cable clamp is arranged on the U-shaped sleeve. A fixing seat is fixedly arranged at the top end of the toggle clip, a placement box is fixedly arranged at the top end of the fixing seat, two placement grooves are formed in the placement box, sliding blocks are slidably connected into the two placement grooves, limiting plates are fixedly arranged on one sides of the two sliding blocks, and extrusion springs are arranged on the other sides of the two sliding blocks; the anti-loosening device has the advantages that the stability of the nut, the U-shaped sleeve and the toggle clip during connection is improved conveniently, the probability that the nut and the toggle clip are loosened is reduced, a steel cable is not prone to being separated from the U-shaped cable clip, and therefore the anti-loosening effect of the device is improved.

The invention discloses an assembly-adjustable cable bridge which comprises a bridge shell, and a wire duct is formed in the upper surface of the bridge shell. Two grooves, a first placing groove and a second placing groove, which are through left and right and are parallel up and down, are formed in the bridge shell; comprising a mounting part, the mounting part comprises a placing bridge frame and a fixing bridge frame, the cross section of the end of the placing bridge frame is matched with the shape of the first placing groove, and the cross section of the end of the fixing bridge frame is matched with the shape of the second placing groove; during installation, the bridge placing end is inserted into the first placing groove in any side of the bridge shell; the fixed bridge frame end is inserted into a second placing groove in the other side of the bridge frame shell, and the placing bridge frame and the fixed bridge frame are fixed to the bridge frame shell through fixing pieces. According to the invention, the placing bridge and the fixed bridge are integrated and are respectively inserted into the left end and the right end of the bridge shell for installation and fixation, so that the placing bridge and the fixed bridge are used as modular units and are connected through rapid bolts, the installation efficiency is improved by 40%, and on-site welding is not needed.

The utility model relates to a bridge connecting device, and belongs to the technical field of bridges. A connecting device is arranged between the bridge bodies, folding supporting plates are arranged on the two sides of the upper surfaces of the bridge bodies respectively, a plurality of connecting holes are formed in the folding supporting plates, and the connecting device comprises a fixing base and a waterproof sliding base which is connected to the fixing base in a sleeving mode and slides on the fixing base. The bridge stand has the advantages that the bridge stand bodies are respectively inserted into the fixing base body, the bridge stand bodies and the fixing base body are fixed together through the bolts, the purpose of fixing the bridge stand bodies is achieved, the cover plate is placed on the bridge stand bodies, the waterproof sliding base is moved to the connecting positions of the bridge stand bodies, and the bridge stand bodies are fixed through the bolts. According to the waterproof bridge frame, the purpose of waterproof at the interface of the bridge frame body is achieved, the problem that a connecting device in the prior art is not waterproof is solved, the cover plate is placed on the bridge frame body from top to bottom, and the problem that in the prior art, a bridge frame top cover located in the bridge frame body cannot be drawn out, and the actual use requirement cannot be met is solved.

The utility model belongs to the technical field of bridge construction, and particularly relates to a device for conveniently fixing a bridge drain hole and preventing concrete from flowing backwards. The backflow device is provided with a connecting pull rod inserted into the drainage hole; the bottom of the connecting pull rod is bent to form a hook used for penetrating through the drainage hole to be connected with a bridge bottom die. The top of the connecting pull rod is provided with a thread facilitating fastening of the fastening nut so as to fasten the whole device. The connecting pull rod is further sleeved with a sealing disc used for blocking the upper end opening of the water drainage hole and preventing cement from flowing backwards. A fastening loosening device capable of moving up and down along the connecting pull rod is also arranged on the connecting pull rod; the fastening loosening device is located between the fastening nut and the sealing disc. According to the device for conveniently fixing the bridge drain hole and preventing the concrete from flowing backwards, the hook is used for fixing the backward flowing device, the sealing disc is used for blocking the upper end opening of the drain hole, the concrete cement is prevented from flowing backwards, and the forming effect is improved.

The utility model relates to the technical field of cutting devices, in particular to a high-temperature-resistant hot-dip galvanizing bridge section cutting device which reduces vibration at a fracture of a bridge section and improves cutting quality by fixing and supporting the two sides of the fracture of the bridge section, and is good in practicability. Comprising a base, a stand column, a lifting cylinder, a lifting seat and a cutting machine, a conveying roller set of the bridge section bar is arranged on the machine base, the upper portion of the first sliding rod is in sliding connection with the lifting base, the first pressing plate is installed at the lower end of the first sliding rod, the first pressing plate is located above the machine base, and the first pressing plate supports and fixes the inner wall of the rear side of a fracture of the bridge section bar; the upper end of the first spring is connected with the lifting base, the lower end of the first spring is connected with the first pressing plate, the supporting mechanism is installed on the outer side of the machine base and comprises an inner supporting assembly and an outer supporting assembly, the inner supporting assembly supports and fixes the inner wall of the front side of the fracture of the bridge frame profile, and the outer supporting assembly supports and fixes the outer wall of the fracture of the bridge frame profile.

The utility model discloses a zirconium oxide integrated bridge, and relates to the field of dental crown fixing bridges, the zirconium oxide integrated bridge comprises a bridge body and a mounting base, a plurality of connecting blocks are fixed to the top of the bridge body, fixed connecting sleeves are fixed to the two sides of the middle of the bottom of the bridge body in a penetrating manner, and movable connecting sleeves are movably mounted at the bottoms of the two ends of the bridge body; a clamping groove is formed in one side of the fixed connecting sleeve, a connector is fixed to the top of the mounting base, and an elastic rod is fixed to one side of the connector. According to the device, the second protruding block is installed on the outer wall of the connector through the elastic rod, the elastic rod can be bent when the second protruding block is pressed, the elastic rod enables the second protruding block to reset when the pressure is relieved, the second protruding block is clamped in the connecting sleeve, the connector is connected with the fixed connector, and the top of the connecting sleeve can be directly and integrally sealed through the all-ceramic crown; therefore, a mounting mode without holes is adopted, and the condition that food residues are accumulated in the holes is avoided.

The utility model discloses a positioning device for friction welding between the middle section of the bridge housing and the shaft head, comprising the middle section of the bridge housing and a mounting seat fixed on a welding workbench, the middle section of the bridge housing comprising an annular shell and bridge tubes on both sides connected in an integral manner, the inner edge of a mounting plane on one side of the annular shell is respectively provided with a plurality of notches distributed along its circumference, an annular tray is fixed on the mounting seat, a plurality of positioning blocks distributed along its circumference are respectively fixed on the annular tray, and are clamped one-to-one with the plurality of notches, and are used to support the annular shell from the bottom side, and to position and fix the annular shell. The utility model can support the bridge housing from the bottom side, and can also position and fix the bridge housing, that is, positioning and fixing the bridge housing can be achieved through a positioning component, and there is no need to set up redundant positioning mechanisms and fixtures on the welding workbench, and on the basis of ensuring welding quality, it can simplify the structure, optimize the operation, and achieve rapid positioning and fixing of the bridge housing, which is conducive to improving processing efficiency.

The application discloses an underwater bridge pier damage detection device and method, and belongs to the technical field of bridge maintenance. The application cooperatively detects functions and self-adapts cleaning, and comprises five parts of a variable frame, a double locking mechanism, a cleaning mechanism, a detection mechanism and a central control mechanism. The variable frame can be sleeved on the outside of a bridge pier, a detachable mounting base is arranged on the variable frame, and an abutting wheel mechanism is arranged on the inner side of the variable frame; the double locking mechanism is arranged through the upper and lower end faces of the mounting base, is used for locking and fixing the detection mechanism and tightly fixing the bridge pier; the cleaning mechanism and the detection mechanism are arranged on the mounting base, the cleaning mechanism is used for cleaning the surface of the bridge pier, and the detection mechanism is used for detecting the underwater bridge pier damage; and the central control mechanism is used for controlling the operation of the abutting wheel mechanism, the cleaning mechanism and the detection mechanism. The application can be self-adapted to bridge piers with different shapes and sizes in underwater environment, integrates the cleaning and detection functions, and improves the efficiency of underwater bridge pier maintenance work.

This application provides a metal cable tray, relating to the technical field of metal cable trays. It includes a cable tray one, with a connecting body movably mounted on the inner center of the cable tray one. Cable tray two and cable tray three are connected to the bottom of both ends of the cable tray one via hinges. A first connecting piece is provided at the connection between cable tray one and cable tray two, and is fixed by bolts. A second connecting piece is provided at the connection between cable tray one and cable tray three, and is also fixed by bolts. Cover plates are installed on the tops of cable tray one, cable tray two, and cable tray three. This invention allows for flexible adjustment of the climbing angle of cable tray one as needed, without requiring cutting or bending the cable tray, saving time and effort, and effectively improving the efficiency of climbing cable tray installation.

The utility model relates to the technical field of temporary connecting devices, in particular to a novel temporary connecting device for a bridge support. The bridge support comprises a bridge support upper seat plate and a bridge support lower seat plate, a connecting plate assembly is arranged between the bridge support upper seat plate and the bridge support lower seat plate, connecting bolts are arranged between the connecting plate assembly and the bridge support upper seat plate, and connecting bolts are arranged between the connecting plate assembly and the bridge support lower seat plate. When the temporary connecting device is used, the bridge support is placed between the bridge support upper seat plate and the bridge support lower seat plate, and connecting bolts between the connecting plate assembly and the bridge support upper seat plate and between the connecting plate assembly and the bridge support lower seat plate are screwed, so that the bridge support upper seat plate and the bridge support lower seat plate clamp and fix the bridge support; furthermore, human factors do not exist basically in the manufacturing process as far as possible, the temporary connecting device of one model can be used on a plurality of bridge supports of different models, and the influence of the hole distance is avoided in the mounting process.

The utility model relates to the field of bridge guardrail supporting, in particular to a bridge guardrail supporting device convenient to disassemble and assemble, which comprises a frame main body, the vehicle further comprises a moving table and a rotating table, the moving table is arranged at the rear end of the vehicle frame body, the rotating table is arranged at the upper end of the moving table, the upper end of the rotating table is slidably connected with a lifting table, and the rear end of the lifting table is fixedly connected with a guardrail tube support used for restraining a guardrail vertical tube. The guardrail pipe support is matched with the limiting plate to fix the vertical installation pipe of the bridge guardrail, the extending rod is matched with the rotating rod to move the clamping jaw body and clamp and fix the transverse installation pipe of the bridge guardrail, and therefore the bridge guardrail can be rapidly assembled and disassembled, the installation time of a single bridge guardrail is shortened, and the installation efficiency is improved. The lifting platform is installed and moved through the frame body, the moving platform and the rotating platform, so that the bridge guardrail is driven to ascend and descend, follow-up butt joint and installation fixing are facilitated, the positioning and installation efficiency is guaranteed, and the time needed for overall installation of the bridge guardrail is shortened.

This utility model discloses a spliced ​​fixed bridge restoration, including two retainers. Each retainer includes an abutment tooth and a crown. The crown is installed on the abutment tooth. Sub-bridges are fixedly installed on opposite sides of the two crowns. The two sub-bridges are detachably and fixedly connected. A retaining protrusion is fixedly installed on the upper inclined surface of one of the sub-bridges. A bridge connector is provided above the sub-bridge. A retaining groove is formed at the bottom of the bridge connector. The retaining protrusion is adapted to the retaining groove. The bridge connector is installed and fixed to the sub-bridge by the retaining protrusion being engaged in the retaining groove. The two sub-bridges of this utility model restoration are independently set, which facilitates the installation of the two crowns onto the abutment teeth on both sides. Then, the two sub-bridges are fixedly connected by tightening the connecting bolts, avoiding excessive grinding or repair of the abutment teeth and reducing damage to the patient's teeth.