33results about How to "Guaranteed connection tightness" patented technology

The present application relates to the technical field of electric control switch, in particular to a kind of motorcycle disc brake control switch, including shell, two wiring copper sheets, electricity connection copper sheet, slider and cover plate, installation cavity is provided in the shell, installation groove is opened in the symmetrical two inner side walls of installation cavity, and two The wiring copper sheet is fixedly inserted in installation groove;The present application is closed by the setting of cover plate and sleeve, the part of wiring copper sheet in installation cavity is isolated with external environment with electricity connection copper sheet, and the inside of the position of wiring copper sheet through shell can be sealed with sealing glue, simultaneously still can be filled into inert gas in installation cavity, to avoid the water vapor in environment into installation cavity, cause the part of wiring copper sheet in installation cavity and electricity connection copper sheet corrosion Problem, guarantee the conductive property of wiring copper sheet and electricity connection copper sheet, guarantee the stability and waterproof performance of motorcycle disc brake control switch.

The utility model provides a kind of quick connection buckle type fire hose connector, it is related to fire hose technical field, including lock block, the outside of lock block is connected with lock shell, the end of lock block is connected with spring, the upside of lock block is connected with unlocking plate, by the fixed buckle outside daughter connector with the entrance end of the card slot inside female connector, first daughter connector is inserted into female connector, in clockwise rotating daughter connector, make fixed buckle move along the L type groove of card slot, when fixed buckle moves, by extruding the wedge surface of lock block, so that lock block is contracted by spring, when fixed buckle continues to move to the end of card slot, fixed buckle no longer extrudes lock block, lock block is re-extended under the action of spring, while the protrusion of lock shell both sides is positioned to lock block, rectangular surface of lock block is contacted with fixed buckle, fixed buckle is clamped in the end of card slot, ensure that daughter connector cannot rotate, to ensure that daughter connector is connected stably with female connector.

The application relates to the aluminum alloy door and window processing technical field, in particular to a glue injection device for aluminum alloy door and window frame processing, which comprises a frame positioning unit and a controller, a transmission mechanism is arranged in the frame positioning unit, the transmission mechanism comprises a transmission seat, moving frames are arranged at the left and right ends of the transmission seat, a transmission assembly for realizing the mutual approaching or moving away of the two moving frames is arranged in the transmission seat, longitudinal plates are arranged at the upper ends of the moving frames, glue injection mechanisms which are aligned with glue injection holes at the front and back ends of the frame are arranged at the front and back ends of each longitudinal plate; glue injection amount sensing assemblies are arranged at the front and back ends of the longitudinal plates; the glue injection device disclosed by the application realizes automatic glue injection of the aluminum alloy frame, reduces the labor intensity, improves the glue injection efficiency, and during the whole glue injection process, the frame profile connecting part is fully injected with glue, the connecting stability and the sealing performance of the whole frame are ensured, glue injection overmuch waste can be avoided, and the glue injection effect on the aluminum alloy door and window frame is excellent.

The breathing machine comprises a main machine and a humidifying tank, the main machine is provided with an inserting base, the humidifying tank is provided with an inserting section, the inserting section can be in inserting fit with the inserting base in the first direction and can be separated from the inserting base in the second direction opposite to the first direction, and the inserting section is provided with an air outlet adapter pipe; the bayonet socket is provided with a receding groove extending in the first direction, so that when the humidifying tank is matched with the main machine in an inserted mode, the air outlet adapter pipe can enter the receding groove in the first direction. In the process of assembling and disassembling the humidifying tank, the protruding air outlet adapter tube does not need to be disassembled, and the humidifying tank inserted with the air outlet adapter tube can be integrally inserted into the bayonet socket, so that the assembling and disassembling steps of the humidifying tank are simplified, and the disassembling step of the air outlet adapter tube in the process of assembling and disassembling the humidifying tank is omitted. In addition, the risk that internal water leaks from the air outlet due to shaking of the humidifying tank is avoided, the cleaning burden of a user is reduced, and the use experience is improved.

The utility model discloses a composite insulator which comprises an insulating tube, umbrella skirts located on the periphery of the insulating tube and two flanges arranged at the two ends of the insulating tube respectively, the insulating tube is a hollow circular tube, supporting pieces are arranged in the two ends of the insulating tube, and each supporting piece is of a solid cylinder structure. The supporting piece and the insulating tube are coaxially arranged, the supporting piece extends inwards from the end of the insulating tube, the outer diameter of the supporting piece is matched with the inner diameter of the insulating tube, the flange is connected to the outer side of the end of the insulating tube in a pressing mode, and the insulating tube, the supporting piece and the flange are tightly connected. According to the composite insulator, compression joint of the hollow insulation tube and the flange is achieved through the supporting piece, the connection strength and the sealing performance between the hollow insulation tube and the flange are guaranteed, the composite insulator is effectively prevented from losing efficacy at the joint of the flange and the insulation tube, the structural strength of the composite insulator can be brought into full play, and compared with a traditional glue joint technology, the composite insulator is more stable. A long-time glue solution curing procedure is omitted, and the production efficiency is improved.

This invention discloses a venting detection device for an ultra-high pressure fuel distribution pipe, relating to the field of water immersion leak detection technology. It includes a detection water reservoir with two air supply connectors mounted on it. A sealing component is fixedly installed on the right-side air supply connector. Two automatic cutting components are mounted on the detection water reservoir, used to cut off the clamping ends of the fuel distribution pipe. An air intake control component is fixedly installed on the left-side air supply connector. An anti-bending and anti-winding component is installed inside the detection water reservoir. The automatic cutting components allow for automatic removal of the clamping sections at both ends of the fuel distribution pipe after leak detection. This removal can be performed during normal venting and leak detection operations, avoiding the risk of manual forgetting to remove the clamping sections. This solves the problem that current ultra-high pressure fuel distribution pipe venting detection devices are not convenient for automatically removing the clamping sections after venting detection.

The utility model relates to an automobile trunk lid which comprises a trunk lid outer plate. The trunk lid inner plate is fixed on the inner side of the trunk lid outer plate; the hinge reinforcing plates are arranged on the two sides of the trunk lid inner plate; the lock catch reinforcing plate is arranged at the bottom of the trunk lid inner plate; the structural adhesive is arranged between the trunk lid outer plate and the trunk lid inner plate and used for connecting the trunk lid outer plate and the trunk lid inner plate; the glue blocking ribs are arranged on the two sides of the structural glue. Compared with the prior art, the utility model has the advantages of effectively controlling the thickness of the structural adhesive, ensuring the connection strength and the sealing property of the product and the like.

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 a damping unit type glass curtain wall which comprises a frame and tempered glass arranged in the frame, the frame is divided into an outer frame and an inner frame, four sets of butt joint inserting plates are evenly installed on the inner side of the outer frame, four sets of fixing bolts are inserted into the corners of the outer frame in a penetrating mode, and four sets of butt joint inserting openings used in cooperation with the butt joint inserting plates are evenly formed in the inner side of the inner frame. Threaded holes are formed in the corners of the inner frame, the fixing bolts are inserted into the threaded holes in a threaded mode, buffering pads are installed on the inner walls of the outer frame and the inner frame, the tempered glass plate is located between the outer frame and the inner frame, the edge of the tempered glass plate makes contact with the buffering pads, buffering assemblies are further arranged on the inner sides of the outer frame and the inner frame, and each buffering assembly comprises a connecting piece, a traction steel wire and a buffering protruding block. The four sets of connecting pieces are evenly fixed to the corners of the buffering cushion, and the traction steel wires are connected with the two sets of connecting pieces at the opposite angles. According to the unit type glass curtain wall, the damping effect of the glass can be effectively improved, and the safety of the glass curtain wall in the using process is improved.

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 application discloses an underwater cable armored connection process applied to the field of underwater cables, which is characterized by using a pair of armored connection devices to connect and fix the disconnected armored layers by the armored connection devices, thereby enhancing the structural strength of the armored layer connection part, effectively reducing the experience requirement for the operator, shortening the overall connection operation time, and preventing the outer diameter of the connection part from being excessively thickened after connection, so that the original cable outer diameter can be maintained, no excessive protrusion is formed, the probability of hooking with underwater objects in the subsequent use process is reduced, and the risk of connection part damage is reduced; grouting filling can integrate the armored connection device and the internal cable into a whole, thereby further improving the integrity and structural stability of the connection structure, and cooperating with a small amount of outer layer wound self-adhesive sealing tape to realize effective outer sheath sealing structure, without additional thickening and reinforcement, while ensuring the connection strength and sealing property, the use requirement of the underwater cable is met.

The invention relates to the technical field of manufacturing of carbon fiber composite material structural parts, and provides a light carbon fiber cabinet structure and an assembling method, the light carbon fiber cabinet structure comprises a top plate, a bottom plate, a left side plate, a right side plate, a front side plate, a reinforcing frame and an electric cabinet support which are all made of carbon fiber composite materials; the front, the rear, the left and the right of the top plate are respectively connected with the top ends of the front side plate, the reinforcing frame, the left side plate and the right side plate, the front, the rear, the left and the right of the bottom plate are respectively connected with the bottom ends of the front side plate, the reinforcing frame, the left side plate and the right side plate, and the electric cabinet support is arranged at the left upper corner in the frame type structure. According to the lightweight carbon fiber cabinet, the lightweight and universal requirements of the airborne cabinet are met, meanwhile, the requirements for strength and rigidity are met, rapid assembly and batch production can be achieved, the functionality of the lightweight carbon fiber cabinet for storing and installing airborne equipment is successfully achieved, and the uniformity of the structural integrity of the whole machine is guaranteed.

This utility model discloses a thin film deposition apparatus, which includes: a vacuum reaction chamber comprising a reaction chamber body and a chamber top cover connected to the reaction chamber body; an upper electrode assembly disposed on top of the vacuum reaction chamber; a lower electrode assembly for supporting a wafer, disposed opposite to the upper electrode assembly; an radio frequency power supply for providing radio frequency energy, connected to the upper electrode assembly and / or the lower electrode assembly; a radio frequency isolation ring disposed between the upper electrode assembly and the chamber top cover and extending below the chamber top cover, the radio frequency isolation ring having a first heater; and a cooling device connected to the chamber top cover. Its advantage is that this apparatus combines the first heater and cooling device, etc., to meet the different temperature requirements of adjacent radio frequency isolation rings and chamber top covers.

This utility model discloses a battery cover with airbag cushioning, relating to the field of battery covers. It includes a battery cover body, which comprises a mounting base frame, a frame-shaped rubber airbag, a movable battery cover, a plate-shaped rubber airbag, a dustproof corrugated pipe, mounting plates, and cushioning springs. The frame-shaped rubber airbag is fixedly installed on the inner wall of the mounting base frame. The movable battery cover is located on one side of the mounting base frame. The plate-shaped rubber airbag is fixedly installed on the inner wall of the movable battery cover. The dustproof corrugated pipe is fixedly sleeved on the mounting base frame and the movable battery cover. Eight mounting plates are symmetrically fixedly installed on the inner walls of the mounting base frame and the movable battery cover. By setting up a battery cover body composed of a mounting base frame, frame-shaped rubber airbag, movable battery cover, plate-shaped rubber airbag, dustproof corrugated pipe, mounting plates, and cushioning springs, a multi-dimensional, multi-layered cushioning and protection system can be formed, effectively solving the problem of traditional single-material battery covers lacking a cushioning and energy-absorbing structure.

The utility model relates to a self-cleaning faucet which comprises a shell, a water outlet located on the front side of the shell, a water inlet located on the rear side of the shell, a valve element located between the water inlet and the water outlet of the shell, a handle linked with the valve element and a liquid containing sleeve integrally formed with the shell. The shell comprises a water flow channel located between the water inlet and the water outlet, the liquid containing sleeve comprises a liquid containing cavity, the liquid containing cavity is communicated with the water flow channel, a cover body is detachably installed on the top of the liquid containing sleeve, and the upward projection of the liquid containing cavity falls on the cover body. A first sealing ring abutting against the inner wall of the liquid containing cavity is fixedly installed in the cover body. By the adoption of the scheme, the self-cleaning faucet is provided, the detergent / powder is contained in the liquid containing sleeve and flushed from the water flow channel to the water outlet side, and therefore the water outlet of the faucet can be cleaned in the circumferential direction.

The application discloses a quick-release furnace door device for a paint stripping kiln, and belongs to the technical field of paint stripping kiln equipment, which comprises a paint stripping kiln main body, a mounting seat is fixedly installed on the front side of the paint stripping kiln main body, and a furnace door is rotationally connected through the mounting seat; the application drives a threaded rod to rotate by rotating a rotating handle, drives an adjusting rod to lift, makes a fixing rod and a lock catch quickly insert or separate, replaces the operation of tightening traditional bolts one by one, realizes quick opening and closing of the furnace door, greatly reduces downtime of each time when workpieces are loaded and unloaded, after the furnace door is closed, an air source control device sends air into a sealing air bag through a gas conveying pipe, the sealing air bag is inflated to fill gaps between the furnace door and the paint stripping kiln main body, the connection sealing property is ensured, sealing failure caused by mechanical abrasion is avoided, meanwhile, intrusion of external air and leakage of internal paint stripping agent steam are effectively prevented, and when the furnace door needs to be opened, gas in the air source control device can be discharged through the air source control device.

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.

The utility model relates to the field of pipe connecting structures, in particular to a solid wall pipe connecting pipe fitting. The tool comprises a sleeve, a boss part and a connecting part, the boss parts are integrally connected to the inner side of the sleeve, protrude inwards and are arranged side by side in the axial direction of the sleeve, and the inner side faces are in interference fit with the outer circumferential face of the solid wall pipe. And the sleeve is connected with the solid-wall pipe through the connecting part. The connecting pipe is in interference sealing connection with the two solid-wall pipes, the two solid-wall pipes are distributed at intervals, the influence of thermal expansion and cold contraction is eliminated, and the stability of the connecting position and the connecting sealing performance are guaranteed.

The utility model relates to the technical field of plastic shells, and discloses a waterproof assembly which comprises a shell and a shell cover, waterproof structures are arranged on the left side and the right side of the shell, output wires are arranged on the inner sides of the waterproof structures, each waterproof structure comprises a fixing sleeve, a clamping sleeve, a conical sleeve and a buckling sleeve, the fixing sleeves and the shell are fixedly installed, and the buckling sleeves and the fixing sleeves are connected through threads. And connecting rods are symmetrically arranged on the front side and the rear side of the clamping sleeve, a gear is arranged above the output wire, first racks are engaged with the two sides of the gear, a second rack is arranged between the adjacent first racks, and the first racks and the second racks are both engaged with the gear. The waterproof structure is arranged at the joint of the output wire and the shell, so that the connection sealing performance of the output wire and the shell is guaranteed, the waterproof effect of parts is improved, the anti-falling effect of the output wire is improved, a circuit can stably output electric signals, and the use stability of the parts is guaranteed.

The utility model discloses a face cream tank, which relates to the field of cosmetic packaging, and adopts the technical scheme that the face cream tank comprises a tank body and a screw cap, the top end of the tank body is fixedly connected with a threaded section matched with the screw cap, the top surface of the threaded section is provided with a plurality of slots, elastic blocks are arranged in the slots, and the top surfaces of the elastic blocks are higher than the top surface of the threaded section. The elastic block abuts against the screw cap. An upward force is applied to the screw cap through the elastic block, so that the pressure between the threaded section and the screw cap is increased, and the pre-tightening force between the threaded section and the screw cap is improved, so that the pre-tightening force between the screw cap and the threaded section does not completely depend on the extrusion between the screw cap and the tank body after the screw cap is tightened, and the connection strength and the sealing performance between the screw cap and the tank body are ensured; the tank body and the threaded section are both made of HDPE materials, so that the tank body and the threaded section have good rigidity, and the structural stability of the inserting groove and the threaded section is guaranteed.

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 relates to the technical field of gear pump maintenance, in particular to a gear pump sealing element quick replacement device which comprises a treatment table body, a connecting frame is arranged at the top of the treatment table body, a cleaning assembly is arranged in the connecting frame, and a four-hand clamping jaw is arranged at the top of the treatment table body and located below the connecting frame. The cleaning assembly is used for cleaning the gear pump, the cleaning assembly is composed of a fixed plate, a movable rod, a movable shell, a plurality of sets of movable frames and sponge strips, the fixed plate is fixedly connected to the top of the connecting frame, the movable rod is located in the fixed plate, and the movable shell is fixedly connected to the bottom of the movable rod; the multiple sets of moving frames are all located at the bottom of the moving shell, the sponge strips are fixedly connected to the bottoms of the moving frames, and compared with an existing replacing device, the overall practicability of the replacing device can be improved through the design.

The utility model discloses a leakproof flange sealing connection device, which belongs to the technical field of flange connection and comprises a left flange and a right flange, the left flange and the right flange are respectively provided with a plurality of first bolt holes, first bolts sequentially penetrate through the right flange and the left flange and are screwed through first nuts, and the first nuts are pressed on the end face of the left flange. A head nut of the first bolt is pressed on the end face of the right flange; a plurality of second screw holes are formed in the side wall of the left flange, the axes of the second screw holes are perpendicular to the axes of the first bolt holes, the second screw holes and the first bolt holes are arranged in a one-to-one correspondence mode and communicated, second screws are connected to the second screw holes in a threaded mode, and positioning holes are formed in screws of the first bolts. After the first bolt is screwed down through the first nut, the positioning hole and the second screw hole are coaxial, and the second screw penetrates through the positioning hole. According to the utility model, the sealing connection of the left flange and the right flange has double protection effects of transverse and longitudinal combination, and the connection sealing performance is greatly improved.

The utility model provides an ultrasonic cleaning device suitable for an MBR (Membrane Bioreactor) membrane component, which is characterized by comprising a cleaning device, a membrane frame, an aeration system and a control system, the cleaning device is divided into a cleaning area and a threading area, the cleaning area is located above the threading area, and a positioning guide rail, a membrane frame, an ultrasonic oscillator and a threading sleeve are arranged in the cleaning area; a threading sleeve is arranged in the threading area; a current branch wire is arranged in the threading sleeve; and a membrane frame air inlet is formed in the membrane frame. According to the utility model, by optimizing the spatial distribution and phase matching strategy of the ultrasonic oscillator array, the directional control of the sound wave interference mode is realized, so that a steady-state sound field covering the whole domain of the film assembly is constructed. According to the technology, modular programmable array layout is adopted, real-time self-adaptive adjustment of sound field energy is supported, and the cleaning requirements of membrane assemblies of different specifications can be accurately met.

The invention discloses a powder spraying machine for molten aluminum treatment, and relates to the technical field of molten aluminum refining equipment, the powder spraying machine comprises a walking crawler belt, a base, a vertical adjusting mechanism, a frame, a feeding mechanism, a powder spraying pipe rotating mechanism and a winding and unwinding mechanism, the vertical adjusting mechanism drives a bevel gear to be in meshing transmission through a bidirectional motor, and a lifting rod is driven to ascend and descend so as to adjust the operation height; the rotating piece and the worm are matched to achieve horizontal rotation of the frame and adjustment of the powder spraying direction, the feeding mechanism controls pressure through a gas flowmeter and controls quantity through a valve, closed stable powder conveying is achieved, the powder spraying pipe rotating mechanism adopts synchronous chain bevel gear transmission to drive double powder spraying pipes to rotate synchronously in the reverse direction, and the powder spraying coverage range is enlarged. The retracting and releasing mechanism drives the retracting and releasing frame to ascend, descend and rotate through the telescopic rod, ordered storage and operation supporting of the powder spraying pipe are achieved in cooperation with the universal wheels, the powder spraying machine has the multi-dimensional adjusting capacity, the powder spraying uniformity is good, operation is convenient and fast, and the molten aluminum treatment effect and the operation efficiency are effectively improved.

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 invention discloses an assembling method for prefabricated well pieces of a rectangular assembly type open caisson. The rectangular assembly type open caisson comprises a plurality of annular well sections which are sequentially connected end to end in the length direction. Each circumferential well section comprises more than two prefabricated well pieces to form four splicing structures; the splicing process comprises the following steps that firstly, all the prefabricated well pieces are spliced into corresponding circumferential well sections; 2, blade foot ring well sections are assembled; and 3, the blade foot ring well sections are sunk, all the circumferential well sections are spliced on the blade foot ring well sections one by one, and sinking at the corresponding height is carried out after splicing of one circumferential well section is completed till sinking of all the circumferential well sections of the rectangular assembly type open caisson is completed. By means of the method, the rectangular assembly type open caisson can be flexibly disassembled, well piece lightweight transportation, positioning, reliable connection and efficient splicing are achieved, and the structural integrity and the construction quality of the open caisson are improved.