35results about How to "Ensure a solid connection" patented technology

The invention relates to a brickwork structure wall-breaking and hole-forming pre-jacking recovery construction method. The brickwork structure wall-breaking and hole-forming pre-jacking recovery construction method comprises the following steps that 1, holes are cleared and pretreated; 2, new walls are built in the holes; 3, when the distances between the top faces of the built new walls and thetops of the holes reach set values, buried-in-type controllable unloaders are mounted between the top faces of the built new walls and the tops of the holes; 4, gaps between the built new walls and old walls around the holes are grouted for closing; and 5, finally, the closed holes are subjected to formwork removal and curing. According to the brickwork structure wall-breaking and hole-forming pre-jacking recovery construction method, compact connection of the new walls and the old walls at the holes can be ensured, the new walls built at the holes are preloaded by arranging the buried-in-typecontrollable unloaders, the load transmitting paths of the building walls are effectively recovered, the safety and reliability of hole recovery are improved, thus the structural safety of a buildingis ensured, and the potential safety hazard is effectively eliminated.

The invention relates to a pipettor which comprises an outer frame, an inner frame, a liquid path pipe, a ball head connecting rod, a ball head and a de-sucking head mechanism, wherein the inner frame is fixedly connected with a power rod and is driven to move by the power rod; the outer frame is suitable for sliding up and down along the inner frame; the ball head connecting rod penetrates through the inner and outer frames; the top end of the ball head connecting rod is fixedly connected with the inner frame and is electrically insulated with the inner frame; the ball head is fixed at the bottom end of the ball head connecting rod and is used for clamping a suction head; the liquid path pipe vertically penetrates through the inner and outer frames, and passes through the ball head connecting rod and the ball head; the de-sucking head mechanism comprises an ejector pin, a rocker and a sleeve; the sleeve is arranged at the bottom of the outer frame, and is arranged outside the ball head connecting rod and the ball head in a sleeving manner, and is opposite to the position of the suction head; the top end of the ejector pin is limited in a hollow cavity of the inner frame; the ejector pin is suitable for sliding up and down along the inner frame; the rocker and the inner frame are hinged, one end of the rocker props against the top end of the ejector pin and the other end of the rocker props against the outer frame. The pipettor is compact in structure, is used for automatically extracting the suction head and the de-sucking head when medical / chemical and various measuring devices transfer liquid and is capable of detecting whether the suction head is in contact with the liquid surface.

The invention relates to the technical field of coal economizer structures of pulverized coal furnaces and circulating fluidized beds, in particular to a pipe system hanging device of a coal economizer. It can be guaranteed that coal economizer pipes are stably fixedly connected with an upper header, and the phenomenon of disengaging cannot happen. The pipe system hanging device comprises the upper header. Pipe clamps are arranged at the lower end of the upper header and internally provided with the coal economizer pipes. The pipe system hanging device is characterized in that embedded metal plates are fixedly installed at the bottom of the upper header, matched fixing holes are formed in embedded metal plates and the tops of the pipe clamps respectively, and connecting rods penetrate the fixing holes in a welding manner.

The invention relates to the technical field of ships, and discloses a marine power battery power supply cabinet. The cabinet body is fixed to the hull deck through a mounting base at the bottom of the cabinet, so as to ensure the stable connection between the cabinet body and the deck. Each drawer is installed with a Power battery pack, each drawer is connected to the slide rail in the installation cavity of the cabinet through the roller at the bottom, so that the drawer can be pulled out along the slide rail for maintenance or replacement, and can also be pushed in and reset along the slide rail for easy installation. When the drawer is disassembled and installed, after the drawer is pushed into the installation cavity, in order to ensure the connection stability between the drawer and the installation cavity, the drawer and the cabinet are locked by the movable locking structure on the drawer, so as to prevent the ship from sailing. During the process, the drawer fell off from the installation cavity due to vibration and shaking, which brought safety hazards to the crew.

The invention relates to the field of wall technology, in particular to a prefabricated thermal insulation wall. In the invention, a seam outer sealing mechanism is provided at the connection between two adjacent wall support bodies, and the I-shaped tensioning member and The joint outer sealing mechanism formed by the sealing expansion layer can well seal the joint of the wall support body and improve the sealing performance. The sealing cavity of the present invention is sealed by injecting expansion and solidification slurry to form a sealing expansion layer In this way, the filling of each gap can be effectively realized, the stability of the seal can be improved, and the stable connection of the wall unit can be realized to ensure the reliability of the wall connection; It can effectively ensure the stable connection of the external thermal insulation and protection components, and prevent the problem that the external thermal insulation protection components are not firmly bonded and fall off after long-term use.

The invention relates to a gutta-percha customization device, comprising a working table, an extruding part and at least one modular gutta-percha mold; wherein, gutta-percha is placed in the extruding part, and the driving part arranged on the working table Pushing the extruding part, so that the gutta-percha placed in the extruding part is extruded into the gutta-percha mould. Therefore, the doctor can conveniently and quickly customize the specific taper and size of the gutta-percha according to the actual shape and size of the gutta-percha during root canal treatment to meet the needs of root canal treatment.

The invention discloses a dry-hanging connection system and a construction method for building decorative boards. The system comprises a plurality of dry-hanging keels (302) placed horizontally and parallel to each other and a decorative board formed by splicing several decorative boards (401) Layer, each decorative plate (401) is dry-hanged together with the dry-hanging keel (302) adjacent to its inner side by a dry-hanging connector. Two adjacent decorative panels of this system share a keel for connection, that is, the back-bolt single keel connection structure, which saves 50% of the keel material and greatly reduces the weight of the external wall hanging panels. Moreover, the lateral distance between the decorative board and the dry-hanging keel is within 20 mm, which greatly reduces the thickness of the decorative board layer and saves space.

The invention discloses an immersed tube sinking device capable of buffering, which includes a guide piece and a sinking assembly. The guide piece has at least a partial structure for being inserted into the bottom of the water; the sinking assembly includes a connecting frame and a sinking body, and the connecting frame It includes a frame body and three frame side seats. The frame body includes a first frame body and a second frame body. The first frame body is connected to the main pipe section, and the second frame body is connected to the pipe connection section; the first frame body and the second The frame body is equipped with a telescopic adjustment assembly, the height of the first frame body and the second frame body in the direction of the extension of the guide can be adjusted, and two of the three frame side seats are connected to the first frame body and the second frame body. The frame body is arranged oppositely, and the other frame side seat is connected between the two frame side seats that are oppositely arranged; the three frame side seats, the first frame body and the second frame body are enclosed to form a storage tank, and the sinking The storage body is embedded in the accommodating groove, is connected with the guide piece, and can move along the extending direction of the guide piece. The technical scheme of the invention improves the construction precision of sinking and placing immersed tubes.