9results about How to "Guaranteed connection tightness" patented technology

This invention discloses a millable composite casing sub for side-drilling window opening, its preparation method, and its application. The millable composite casing sub comprises the following components: a matrix, a lubricating phase, and brittle phase reinforcing particles; the matrix is ​​an aluminum alloy matrix; the lubricating phase is graphite particles; and the brittle phase reinforcing particles are brittle mineral particles. During side-drilling window opening operations, an integrated hydraulic directional device is seated inside the lower steel casing below the casing sub. A gyroscope is used for precise orientation, and then a milling cone is lowered to perform side-drilling window opening. The sub body is milled using the milling cone to form the initial window. This invention, while ensuring the overall connection strength and sealing of the wellbore, locally alters the millability of the casing material at the planned window opening point. Through material and structural innovation, it replaces traditional steel casing, shortens the operation cycle, reduces the difficulty of milling operations, and extends the service life of the milling cone, thereby achieving high efficiency, low cost, and safety and reliability in window opening operations.

The utility model relates to the field of equipment for microbial fermentation, concretely to a feeding device for microbial fermentation tank, including the fermentation tank body, the fermentation tank body top is fixedly arranged with the feed inlet, the feed inlet inboard is movably arranged with the feeder, the feeder top is fixedly arranged with the feeding pipe, the feeding pipe one end fermentation tank body one side is fixedly arranged with the feeding tank, the feeding tank outside is fixedly arranged with the inside view window, the feeding tank top is fixedly arranged with the stirring motor, the stirring motor below fermentation tank body inboard is fixedly arranged with the stirring frame, this kind of device extracts from the feeding tank through the feed pump, then utilizes the feeding pipe and the feeder to convey to the fermentation tank body, and the feeding tank is provided with the stirring motor, can drive the stirring frame rotation through two synchronous gear, thereby utilizes the stirring frame to agitate the nutrient mixed solution in the feeding tank, mixes all kinds of nutrient solution evenly, thereby guarantee that the nutrient mixed solution can better provide the nutrition for the microorganism.

This utility model relates to the field of battery cluster technology and discloses a battery cluster liquid-cooled pipe connection sealing device, including a liquid-cooled pipe body. A rotating collar and an outer collar are respectively sleeved at both ends of the liquid-cooled pipe body. A threaded post is fixedly installed at one end of the rotating collar, and an internal threaded groove is formed on the inner side of the outer collar. A sealing element is filled on the inner side of the outer collar, and an inwardly inclined surface is formed on the inner side of the sealing element. An elastic element located on the surface of the threaded post is fixedly adhered to one end of the rotating collar. This structural design has dual advantages: firstly, modular components enable low-cost and rapid assembly, and sealing can be completed simply by rotating the rotating collar during operation; secondly, the sealing element can be flexibly disassembled. When the sealing performance deteriorates due to repeated compression deformation, it can be directly disassembled and replaced without disassembling the entire pipeline system, effectively restoring the initial sealing effect and balancing economy and maintenance convenience.

The utility model discloses a silica gel outer cover water stop, it includes water stop body and one or above's extension section, between water stop body with extension section, between extension section with extension section is equipped with detachable connecting structure and sealing connecting structure, water stop body includes first hardware spare and first silica gel outer ring, extension section all includes second hardware spare and second silica gel outer ring, first silica gel outer ring and second silica gel outer ring all are equipped with outer ring anti -infiltration water structure. The utility model discloses a detachable connecting structure that is formed by the card groove structure and the clamping block structure can constitute the water stop of different length, friction requirement according to demand, improve the applicability, reduce the customization cost, and through setting up sealing connecting structure is used for guaranteeing the connecting sealing property between water stop body with extension section, extension section and extension section, guarantees the subsequent use of silica gel outer cover water stop.

The utility model discloses the vault forming die of down draught kiln, including two gaps setting down draught kiln side wall still includes forming die lower mould and forming die upper mould, the top of forming die lower mould is fixedly provided with the forming part of arch, and the top surface of forming part is cambered surface, forming die upper mould includes the forming cover plate of arch, and the forming cover plate sets up at the top of down draught kiln side wall and is detachably connected with down draught kiln side wall, and the top of forming cover plate is equipped with the open -and -close feeding opening, the front and rear end of forming cover plate all are fixedly connected with the sealing plate of being inverted in the bottom of forming part, and the forming cover plate and forming part cooperate and form the closed cavity, the utility model discloses can effectively reduce the construction difficulty of down draught kiln vault structure, improve the construction efficiency of vault structure, and the casted refractory material slurry can directly solidify in the top of side wall to guarantee the connecting strength and sealing property between vault and side wall, the forming die in the utility model discloses can be repeatedly used, can effectively reduce the construction cost of down draught kiln.

The utility model discloses a closed electric cylinder, including electric cylinder body, connecting assembly and sealing assembly, the connecting assembly includes the connecting column of ball screw bottom welding, and the rectangular groove and first circular hole that are set up respectively at the bottom and both sides of connecting column, the utility model discloses a closed electric cylinder, the connecting column of ball screw bottom and the rectangular pivot of servo motor upper end, under the clamping of both sides fixed clamps, can carry out convenient fixed connection, and then to ball screw carries out the steady drive, connecting assembly is convenient for electric cylinder body internal component assembly simultaneously, also is favorable to the dismounting overhaul of electric cylinder body internal component damage, the sealing ring of clamping between electric cylinder body bottom and servo motor and the sealing cover of electric cylinder body top sleeve outer end installation, also can keep servo motor, sleeve and the connecting sealing property between electric cylinder body, and then keep the closure of electric cylinder body inside to the outside world.

This utility model discloses a multi-layer composite PVC-U plastic pipe fitting, including a fitting mechanism and a sealing mechanism. The fitting mechanism includes a connector, a connecting pipe connected to and communicating with the connector, and a sealing mechanism. The sealing mechanism includes multiple arc plates embedded inside the connector, an adhesive cavity located on the inner side of the arc plates, multiple pressure blocks attached to the outer side of the arc plates, and multiple adhesive outlet pipes installed on both sides of the arc plates and communicating with the interior of the adhesive cavity. The outer ends of the adhesive outlet pipes are flush with the outer wall of the connector. In this utility model, when it is confirmed that there is adhesive inside the adhesive cavity, the operator screws the connector to the outer pipe body. The inner wall of the outer pipe body is deformed by squeezing the pressure blocks, and then the volume of the adhesive cavity decreases. The adhesive inside fills the gap between the connector and the outer pipe body through the adhesive outlet pipes, thereby completing the sealing connection and improving the user comfort of this device.

The utility model discloses an integrated silica gel interface fixing assembly for cold compress machine belongs to cold compress machine accessory technical field, including silica gel fixed seat, its inside is provided with intercommunication cavity, and its edge is connected with sealing skirt, and is provided with fixed hole on sealing skirt, quick connector subassembly, it includes female seat and matched plug connector, cable access piece, it sets up in silica gel fixed seat rear end and is sealed with it. Its technical key points are: through the mode of embedding quick connector subassembly and cable access piece in silica gel fixed seat, improve the overall integration of the component, realize multifunctional connection in limited space, because silica gel fixed seat is sealed with refrigeration tank through sealing skirt, can ensure the airtightness of intercommunication cavity and refrigeration tank internal space connection to realize in silica gel fixed seat can ensure the connection airtightness, has stronger detachability, can facilitate the maintenance work to carry out, can also simplify operation simultaneously.

The utility model provides a kind of inner lining structure for ammonium perchlorate reaction kettle, including reaction kettle body and reaction lining cylinder, reaction lining cylinder is equipped in the reaction kettle body inner cavity, the reaction lining cylinder is made of the cylinder body of the main lining board and a piece of vice lining board embrace, and the cylinder bottom is connected with bottom lining board.The utility model is assembled in the reaction kettle body inner cavity after reaction lining cylinder, by screwing bolt, so that vice lining board is pushed in, and then drive vice lining board and the mutual extrusion of the sticking side of multiple main lining boards, and then guarantee the sealing property of its junction, the outer wall of bottom lining board is equipped with 2-3 pass piston ring, and the cylinder inner wall of the cylinder body formed by piston ring and main lining board, vice lining board is closely contacted, guarantee the connection sealing property between bottom lining board and cylinder inner wall.