12 results about "Fixed Bridges" patented technology

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.

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.

The design concerns a work or pleasure vessel capable of unobstructed passage through very shallow water passages, such as (but without exception) fixed bridges and the like. The upper part of the freeboard, the inflatable section, will collapse upon deflation of the air inside and rest upon the rigid part of the hull, thereby creating a very limited clearance height. This allows these obstacles in the waterway to be passed effortlessly and easily at all times. In both the inflated and deflated states, the inflatable part of the freeboard forms a permanently attached part of the vessel. After passing through the passage, the inflatable part of the freeboard is restored to its original shape using an air pump, after which the vessel safely navigates the waterway in its complete form.

The utility model provides a tenon-and-mortise joint bridge body structure based on a fixed bridge, which comprises a first bridge body arranged on a first abutment tooth, a second bridge body arranged on a second abutment tooth, and a connecting assembly arranged between the first bridge body and the second bridge body, and the connecting assembly comprises a first connecting groove formed in the first bridge body, and a second connecting groove formed in the second bridge body; the connecting lug is arranged at the position, corresponding to the first connecting groove, of the second bridge body, and the limiting part is arranged between the first connecting groove and the connecting lug. By adopting a tenon-and-mortise design mode, the problem that conventional bridge repairing is difficult to implement when a plurality of abutment teeth have large undercuts or have no common path of insertion is effectively solved, an adhesive is prevented from being directly exposed to an oral environment, the service life of a bridge body is prolonged, and the stability and reliability of a repairing effect are improved; the structure has the advantages of being firm in combination, attractive, natural and controllable in precision, the repair experience and the oral health level of a patient can be improved, innovativeness and practicability are achieved, and popularization and implementation are convenient.

This invention relates to the field of civil engineering technology, and in particular to a construction structure and method for cantilever erection of main piers for steel truss girders in high mountain canyons. Regarding the construction structure, the abutment top is fixed with a three-dimensional jack and abutment pre-height pad; the top of the side span assembly support is fixed with an assembly support pre-height pad; the side span temporary pier top support structure includes a side span temporary pier, with a side span temporary pier pre-height pad fixed on top; the side pier top support structure includes a side pier, with a side pier three-dimensional jack and side pier pre-height pad fixed on top; the secondary side span super-high pier top support structure includes a secondary side span super-high pier, with a pad and hydraulic jack fixed on top; the main pier top support structure includes the main pier, with a main pier three-dimensional jack and main pier pre-height pad fixed on top. The technical solution of this application rationally plans the arrangement of permanent and temporary pier tops. This avoids the need for beam lowering construction at each permanent and temporary pier, greatly shortening the cantilever erection period and reducing the safety risks associated with beam lowering.

The utility model provides a kind of bridge housing upper support fixing clamp, including mounting seat, first locating seat, first fixed part and second fixed part, first locating seat is fixedly arranged on mounting seat, first fixed part is fixedly arranged on mounting seat, first fixed part is oppositely arranged with mounting seat, fixed gap for installing bridge housing upper support is formed between first fixed part and first locating seat, second fixed part is between first locating seat and first fixed part;Wherein, second fixed part has fixed part, fixed part has the fixed position for fixing bridge housing upper support and the release position for installing bridge housing upper support, the utility model has the beneficial effect: the utility model provides a kind of bridge housing upper support fixing clamp, by setting fixed part, fixed part has fixed position and release position, fixed part is located in fixed gap middle part, when processing drilling, will not block processing drilling, and drilling effect is better.

This invention discloses a recumbent harp, relating to the field of recumbent harp technology. It includes a main body, with a first connecting hole on the headstock side and a second connecting hole on the tailstock side. This recumbent harp, through the arrangement of the main body, fixed bridge, movable bridge, and strings, allows the strings to start from the first connecting hole, pass through the fixed bridge and the movable bridge, and finally exit through the second connecting hole, forming a complete and tension-controllable vibration system. The fixed bridge provides stable support and vibration transmission points for the strings, ensuring accurate basic pitch. The movable bridge can slide flexibly on the strings, facilitating real-time adjustment of pitch and modulation during performance, expanding musical expressiveness. Anti-slip plates are located on both sides of the top of the body, adjacent to the string exit points; their special surface treatment effectively increases friction, preventing the strings from sliding or shifting during performance, thus achieving stable pitch, flexible tuning, and sensitive performance response.

The utility model relates to the technical field of bridge support, specifically relates to a mould pressing bidirectional bridge support of quick assembly, including bridge body, a group of through slots are symmetrically penetrated and arranged at the centre of bridge body, and pipeline passes through in through slot, and the both sides of bridge body are provided with through slot, and the sliding rod is slidably arranged in through slot, and one end of sliding rod is provided with support body, and one side of support body is provided with mounting hole, and the contact position of bridge body and sliding rod is provided with fixed component, fixed component is used for quick fixing bridge body and support body, through the sliding cooperation of through slot of bridge body and sliding rod, the position adjustment of support body can be carried out on the both sides of bridge body, when installing, the position of support body is adjusted through sliding rod, realizes the quick installation and disassembly of bridge body and support body. Compared with prior art, the utility model realizes that bridge body and sliding rod can be quickly assembled and stably connected, and improves construction efficiency.

This invention discloses a 5-axis scanning method and apparatus for measuring the full surface morphology and roughness of a rotating body. It includes a fixed, immovable bridge structure; movable X, Y, and Z guide rails forming an X-Y-Z three-dimensional linear motion and positioning system; a rotating platform forming an θ-β two-dimensional rotational motion and positioning system; a flat plate / vibration isolation table serving as the mounting and fixing plate for the scanning system; and the axis of the Y guide rail passing through the rotation center of θ. The Y guide rail adjusts the position of the specimen's rotation center and aligns it with the rotation center of θ to complete specimen positioning. The movement of all guide rails is controlled by a computer via a control bus. The advantages of this invention are that it employs non-contact measurement, enabling simultaneous measurement of the profile and roughness of a rotating body specimen using a ranging laser probe and a measuring laser probe, improving measurement efficiency and accuracy. The wear-free probe ensures a long service life, which is beneficial for promoting the multifunctional and intelligent development of testing instruments.

This utility model belongs to the field of marine equipment technology, specifically relating to a retractable staircase for marine personnel passage with six degrees of freedom compensation function. It includes a six-bar parallel platform, a turntable, a walkway, and a top-mounting device. The six-bar parallel platform uses six actuators in conjunction with a base and a top seat to achieve dynamic compensation for multiple degrees of freedom movements of the hull, such as heave, pitch, and roll, ensuring the turntable remains horizontal. The walkway consists of a fixed bridge and a sliding bridge. The sliding bridge's length is adjusted via a rack and pinion mechanism, while the fixed bridge's angle is adjusted by a first motor driving a gear ring, aligning the walkway with the target platform. A top-mounting device is installed at one end of the sliding bridge. This device includes a connecting frame, a fixed sleeve, a movable sleeve, a top-mounting rubber, diagonal braces, and shock-absorbing springs. The top-mounting device uses a force sensor to monitor contact pressure in real time and provides a buffer function, preventing damage to the sliding bridge or platform due to excessive pressure.

This utility model discloses a cable tray connector. A relay fixing box is provided on the side of the fixed cable tray. A corrective bidirectional lead screw is rotatably connected to one end of the relay fixing box. An insertion sleeve is connected to the side end of the corrective bidirectional lead screw via a lead screw seat. A processing bidirectional lead screw is rotatably connected to one end of the relay fixing box. An insertion irregular frame is connected to the side end of the processing bidirectional lead screw via a lead screw seat. Several sliding processing holes are equidistantly opened on the side end of the insertion irregular frame. This utility model, in conjunction with positioning bolts, clamping nuts, and limiting nuts, positions and assembles the insertion sleeve, relay fixing box, fixed cable tray, and insertion irregular frame. During connection, adjustments are made at the interface according to the actual dimensions of the connection position, correcting the connection part and reducing the occurrence of connection separation due to large gaps. This improves the efficiency and accuracy of laying and enhances the stability during long-term use.

The utility model discloses a kind of adjustable steel formwork devices for bridge support pad stone, it is related to steel formwork technical field, including formwork assembly and connecting assembly, formwork assembly includes first angle steel piece, second angle steel piece and adjusting part, first angle steel piece and second angle steel piece are all with the clamping groove for clamping bridge support pad stone corner, the two sides of adjusting part respectively abut first angle steel piece and second angle steel piece.Connecting assembly detachably connects first angle steel piece, second angle steel piece and adjusting part.The two sides of adjusting part abut first angle steel piece and second angle steel piece, and are connected by connecting assembly, to fix the side of bridge support pad stone.When needing to fix bridge support pad stone of different sizes, connecting assembly can be first disassembled, then suitable size adjusting part is installed between first angle steel piece and second angle steel piece, then connecting assembly is connected, and it is available.Compared with prior art, the steel formwork adjusting device of the application has strong compatibility and low cost.