20results about How to "Tightly sealed connection" patented technology

The utility model provides a leakproof alkylation reactor, including main reactor, tube pass device and reaction end seal head, tube pass device and reaction end seal head are respectively connected and fixed with main reactor tube pass end and reaction end through sealing connection subassembly, sealing connection subassembly includes butt joint subassembly and sealing subassembly, through setting up the sealing connection subassembly, the butt joint subassembly is connected with the butt joint subassembly through the butt joint subassembly. The main reactor, the tube pass device and the reaction end sealing head are stably and hermetically connected through the butt joint assembly, leakage in the using process is prevented, and the main reactor, the tube pass device and the reaction end sealing head are fixedly connected through the butt joint assembly. The primary sealing effect is achieved through the first sealing ring between the first flange plate and the second flange plate, and the sealing performance of connection between the main reactor and the tube pass device and the reaction end sealing head is enhanced through the arranged sealing assembly, so that the sealing performance of connection is further enhanced, and the overall stability and sealing performance are guaranteed.

The utility model belongs to the technical field of cable bridges, and particularly relates to a sewer closed type cable bridge which comprises a bottom box, a top cover, a partition plate, a filler package, a cable arranging frame and a supporting piece, the filler package is placed at the bottom of the bottom box, and the partition plate is arranged on the upper portion of the filler package. Wire arranging frames and supporting pieces which are distributed at equal intervals are arranged in a cavity above the partition plate in the bottom box, the two ends of an elastic arc rod of each supporting piece abut against the inner wall of the bottom box, a top cover is arranged on the bottom box, sealing grooves are formed in side plates integrally arranged on the two sides of the top cover, and the sealing grooves are matched with outer protruding parts arranged on the bottom box. According to the utility model, the supporting piece is arranged in the bottom box, and when the top cover is covered, the top cover extrudes the elastic arc rod, so that the abutting ends at the two ends move to abut against the port abutting part at the upper part of the bottom box, thereby ensuring that the top cover and the bottom box are stably connected together in a sealing manner, and ensuring stable use.

This invention relates to the field of brine purification technology in the salt production industry, and discloses a silicon carbide flat-sheet membrane brine purification system and process for the salt production industry. The invention uses a modular silicon carbide flat-sheet membrane filtration unit as its core, combined with a minimalist pretreatment feeding unit. Through the modular collaborative design of an open-top membrane tank shell at atmospheric pressure, a detachable stackable membrane tower, a negative pressure water production component, an array-type aeration component, and a refined brine backwashing component, it achieves negative pressure suction filtration with the membrane tower completely submerged in the crude brine, directly treating crude brine containing calcium and magnesium precipitates without the need for pre-filtering and circulation equipment. The modular design of each component in this system allows for easy assembly and disassembly, high filtration accuracy, low energy consumption, strong anti-fouling properties, and stable production of calcium and magnesium precipitates. 2+ +Mg 2+ The refined brine with ≤1ppm and SS≤1ppm has significant advantages over traditional ceramic membrane systems in terms of equipment investment, operating costs, membrane life and industrial adaptability. It can be widely used in brine refining in the salt industry and brine refining in chlor-alkali systems.

The invention relates to the technical field of double-wall corrugated pipes, in particular to a polyvinyl chloride double-wall corrugated pipe for underground drainage and a preparation method of the polyvinyl chloride double-wall corrugated pipe. Through the mutual cooperation effect of the electric melting pipe fitting, the corrugated pipe body, the sealing connecting pipe, the positioning supporting mechanism and other structures which are designed to have specific structures and position relations, efficient and sealing butt joint of the polyvinyl chloride double-wall corrugated pipe end is achieved, stable supporting and positioning are provided for the double-wall corrugated pipe when the double-wall corrugated pipe is used for underground drainage, and the service life of the double-wall corrugated pipe is prolonged. Particularly, according to the structure for achieving transfer butt joint between the corrugated pipe body and the electric melting pipe fitting through the sealing connection pipe, sealing connection positioning is achieved between the sealing connection pipe and the corrugated pipe body through the hoop mechanism and the arc-shaped limiting block connected with the hoop mechanism. Synchronous and stable electric melting connection between the sealing connecting pipe and the electric melting pipe fitting is achieved by driving the bidirectional lead screw to rotate.

The utility model discloses an electric rice cooker, including the pot body with inner pot and the pot cover with metal inner cover, the inner pot is equipped with the first sealing surface, the metal inner cover is equipped with the second sealing surface, the first sealing surface and the second sealing surface are pasted and form the rigid sealing area of annular, still include the fan and the air duct with outside communication, the air duct is along the rigid sealing area circumferential arrangement, the fan is used to send the wind of outside into the air duct, to make the wind flow through the air duct and cool the rigid sealing area. The utility model discloses an electric rice cooker, the steam produced when cooking meets the rigid sealing area of low temperature and will become condensed water, and the condensed water will fill the gap between the metal inner cover and the inner pot and form water seal, which can effectively improve the sealing effect between the metal inner cover and the inner pot, thereby effectively avoiding air leakage.

This invention provides a cotton field sprayer based on drip irrigation technology, comprising a drip irrigation system including a main pipe, branch pipes, a return pipe, and a water tank. The main pipe and return pipe are connected by several sets of branch pipes. Several sets of connectors are provided on the outside of the branch pipes. A spraying component is fixedly connected to one end of each connector. The main pipe is connected to the outlet of the water tank, and the return pipe is connected to the inlet of the water tank. Each connector includes a connecting pipe with a positioning hole at one end and a sealing groove on the outside. Several sets of arc-shaped protrusions are fixedly connected to the upper part of the positioning hole. By fixing connectors on the branch pipes and connecting the spraying components through the connectors, this invention allows the pesticide to be delivered inside the cotton field based on the drip irrigation system and then sprayed onto the cotton plants through the spraying components. This effectively reduces the labor intensity of cotton field spraying and, to a certain extent, reduces the cost of cotton field spraying.

The utility model discloses a membrane branch structure for water treatment, which relates to the technical field of water treatment.The membrane branch structure comprises a shell and a filtering mechanism, a first end cover and a second end cover are arranged at the two ends of the shell respectively, a water outlet pipe is installed in the center of the first end cover, a water inlet pipe is installed in the center of the second end cover, and a water outlet pipe is installed in the shell. According to the water purifier, the water can be fully filtered through a special annular filtering membrane structure, the quality of the water is improved, meanwhile, the annular filtering membrane is clamped on the second locking plate, then the first locking plates are arranged on the two sides of the annular filtering membrane, the annular filtering membrane is clamped on the second locking plate, and the first locking plates are arranged on the two sides of the annular filtering membrane. The annular filtering membranes can be stably connected in a sealed mode, gaps can be formed between the adjacent annular filtering membranes, the side walls of the annular filtering membranes are fully utilized, and the water filtering efficiency is improved.

The utility model provides a gastrostomy tube sleeve and a sleeve connecting and fixing device, and the gastrostomy tube sleeve comprises a Y-shaped gastrostomy tube which comprises a gastrostomy end main tube, and a jejunum end branch tube and a stomach tube end branch tube which are respectively communicated with the gastrostomy end main tube; the feeding tube is connected with the jejunum end branch tube in a sleeved mode, and the outer diameter of the feeding tube is smaller than the inner diameter of the jejunum end branch tube; the connecting and fixing device has an opening state and a closing state, and in the process of switching from the opening state to the closing state, the connecting and fixing device can define stepped through holes matched with the feeding tube and the jejunum end branch tube respectively; and a plurality of sealing positions for sealing fit clearances among the feeding tube, the jejunum end branch tube and the connecting and fixing device are arranged in the stepped through hole. According to the connecting and fixing device, it is guaranteed that the Y-shaped fistulization tube and the feeding tube are well connected in a sealed mode through the connecting and fixing device.

The invention discloses a pressure monitoring self-adaptive connecting device, which relates to the technical field of medical instruments and comprises a sealing assembly arranged on equipment and a connecting assembly used for mounting a pressure box, the sealing assembly comprises a connector and a support, a connecting through groove is formed in the support, and an elastic piece coaxially arranged outside the connector in a sleeving mode is arranged between the support and the connector. One end of the elastic piece is fixedly installed on the side wall of the connecting through groove, and the other end of the elastic piece is fixedly installed on the side wall of the connector. A channel communicated with the pressure sensor is formed in the connector. The connecting assembly is used for driving the pressure box to move so that the pressure box can abut against the connector. Through the arrangement of the elastic piece and the connecting assembly, the self-adaptive connector can abut against the pressure box, and it can be ensured that stable and reliable sealing connection is achieved between the pressure box and a monitoring interface on the hemodialysis or purification equipment.

The embodiment of the utility model discloses a water pick. The oral irrigator comprises a machine shell, a water pump, a nozzle and a first sealing piece. A mounting hole is formed in the top of the shell. The water pump is arranged in the machine shell and provided with a water outlet structure. One end of the nozzle penetrates through the mounting hole, is detachably inserted into the water outlet structure and is communicated with the water outlet structure. At least part of the first sealing piece is clamped between the water outlet structure and the machine shell so as to seal a gap between the machine shell and the water outlet structure. According to the technical scheme, liquid can be effectively prevented from leaking into the inner space of the machine shell, use safety of products is guaranteed, and reliability is improved.

The utility model provides a polygonal double-wall corrugated pipe, which relates to the technical field of polygonal double-wall corrugated pipes, and comprises a corrugated pipe body, a protective device is arranged on the surface of the corrugated pipe body, and the protective device comprises a first mounting rack and a second mounting rack, connecting blocks are fixedly connected to the two sides of the surface of the first mounting frame and the two sides of the surface of the second mounting frame correspondingly, bolts are connected to the surfaces of the connecting blocks in a penetrating and threaded mode, and protection rings are fixedly connected to the sides, close to each other, of the inner walls of the first mounting frame and the second mounting frame correspondingly. The corrugated pipe solves the problems that in the prior art, when the corrugated pipe is buried underground at a connecting port of the corrugated pipe, the corrugated pipe bears large pressure of soil, so that the corrugated pipe is deformed and damaged, meanwhile, the corrugated pipe is prone to shaking in the burying process, the sealing connection of the corrugated pipe is not firm, the sealing effect is reduced, and the service life of the corrugated pipe is prolonged. And the use effect of the polygonal double-wall corrugated pipe is affected.

The present invention discloses a tubular reaction device for preparing semiconductor materials, which belongs to the technical field of semiconductor material preparation, and comprises a reaction tube body and a first end cap and a second end cap arranged at both ends thereof, wherein the first end cap and the second end cap are respectively provided with a first cover plate and a second cover plate at the connection places with the two ends of the reaction tube body; a row of first through holes is provided on the first cover plate along the diameter direction, and a plurality of pairs of second through holes are distributed along the radial direction on the second cover plate, and each pair of second through holes is fixedly connected with two leg tubes of a Y-type three-way pipe arranged on the second cover plate, and the top tube of the Y-type three-way pipe is fixedly connected with the lower end of a stainless steel casing, and the top end of the stainless steel casing is connected to the first through hole; a mixing core tube and a ceramic tube are arranged inside the stainless steel casing, and the reaction solution is mixed through the mixing core tube and then flows through the ceramic tube and is discharged from the liquid outlet tube. The present invention is provided with a plurality of groups of mixing core tubes and ceramic tubes, which can improve the reaction efficiency and processing capacity of the tubular reaction device.

The utility model provides a kind of solid-state battery packaging structure, including metal lower shell and metal upper shell, the top of the metal lower shell is open structure, and middle part is provided with battery core groove, the top of the metal lower shell is installed with multiple bending pieces in open place, the bottom of the metal upper shell is equipped with multiple sealing grooves, the bottom of the metal upper shell is installed with sealing gasket, the sealing groove is circumferentially arranged along sealing gasket, bending anastomosis piece is respectively set in the sealing groove, locking piece is installed in the side of bending anastomosis piece;The utility model is provided with sealing gasket between metal upper shell and metal lower shell, increase in metal lower shell, the sealing property of battery core groove, better protection internal battery core, by setting bending piece and bending anastomosis piece, it can be according to the bending angle of bending anastomosis piece, when packaging, the bending angle of bending piece is automatically pressed and closed, more matching anastomosis metal lower shell and metal upper shell, the sealing connection between the two is more fastened.

The utility model discloses a gas chromatograph-mass spectrometer sealed sample introduction mechanism which comprises a sample introduction pipe, the sample introduction pipe comprises a gas outlet pipe and a pipe jacking part, the pipe jacking part is arranged on the upper end face of the gas outlet pipe, the pipe jacking part is fixedly connected with the gas outlet pipe, the pipe jacking part is sleeved with a gas injection pipe, and the gas injection pipe is in sealed sliding connection with the pipe jacking part. According to the utility model, the gas injection pipe which can be movably adjusted is arranged on the sample injection pipe, and the gas injection pipe is designed into a structure that the two half pipes are buckled, so that the gas injection pipe can be quickly connected during installation; through the arrangement of a first sealing ring, a second sealing ring and a sealing strip, stable sealing connection between the gas injection pipe and the sample injection pipe can be ensured, so that the height of the gas injection pipe can be flexibly adjusted during gas inlet operation, and better matching and rotary connection between the connecting pipe and external sample supply equipment are facilitated; the device has the advantages of convenient adjustment and easy installation.

The utility model discloses a solar hot bar with an automatic cooling and adjusting function, which comprises an evaporator, a condenser is arranged above the evaporator, and a solar radiator is arranged above the condenser. By arranging the evaporator, the condenser, the solar radiator and the solar heat collector, when the solar heat bar works, a liquid coolant in the evaporator absorbs heat and is evaporated into vapor cooling liquid, and the vapor cooling liquid ascends to enter a condensation pipe and is cooled and condensed into the liquid coolant through a first outer cooling fin to flow back into the evaporator; meanwhile, a part of the vapor-state refrigerant is desorbed by the heated adsorbate in the second base tube, and then the desorbed vapor-state refrigerant molecules are subjected to sufficient heat dissipation in the solar radiator and then are subjected to phase change to form a liquid-state refrigerant subjected to circulating cooling to flow back into the evaporator; therefore, solar energy resources of the Qinghai-Tibet Plateau are fully utilized to continuously, stably and automatically reduce the temperature in the frozen soil layer, and the thermal stability of the permafrost roadbed and the foundation is effectively maintained in all seasons.

The invention discloses metal gradient wear-resistant coating spraying equipment for fitness equipment processing, which comprises a bottom plate, the bottom plate is mounted on external equipment, an adjusting mechanism is arranged on the bottom plate, the number of sliding sleeves is two, the two sliding sleeves are respectively communicated with a two-way pipe, the design of the adjusting mechanism combines a plurality of assemblies, and the adjusting mechanism is arranged on the two-way pipe. Flexible adjustment of the spraying area is achieved, the number of spraying pipes can be accurately controlled through cooperation of a transverse plate and a pressing sleeve, the spraying device adapts to plates of various sizes, the opening degree of spraying holes is allowed to be finely adjusted through the design of a sealing disc and a conical head, and therefore the atomization effect is controlled; the combination of the follow-up sleeve, the hexagonal rod and the two-way sleeve realizes the accurate adjustment of the opening degree of the spray holes, the synchronous rod and the synchronous spring ensure the synchronous adjustment of the plurality of spray holes, and the guide groove and the guide strip ensure the moving stability of the sealing disc, so that the adaptability and the efficiency of the spraying process are effectively improved through the design; and the spraying function with adjustable height and accurate control is achieved.

The utility model discloses an aluminum alloy door and window with a noise reduction function, which comprises an aluminum alloy door body, a noise reduction component is arranged on the inner side of the aluminum alloy door body, a fixed handle is arranged on the right side of the front end of the aluminum alloy door body, and a mounting box is arranged on the upper side in the aluminum alloy door body. A filtering assembly is arranged on the inner side of the mounting box, an adjusting bolt is arranged at the joint of the mounting box and the aluminum alloy door body, and a filtering type air inlet hole is formed in the inner side of the front end of the mounting box; and the upper top plate is arranged above the filtering assembly and connected with the mounting box, and a movable baffle connected with the aluminum alloy door body is arranged on the rear side of the mounting box. According to the aluminum alloy door and window with the noise reduction function, noise reduction treatment is facilitated, the phenomenon that indoor interference is caused by too large outdoor noise is avoided, stable sealing connection can be conducted according to needs, and the practical effect of the device is improved.

The utility model provides a kind of juicer, including juicer body (1), the cutting part (2) of sequentially being arranged from top to bottom in the juicer body (1) inside, fixed plate (5), grinding part (4);The edge of the fixed plate (5) is inwardly recessed, and the gap between it and the inner wall of the juicer body (1) constitutes inlet (7);Arc-shaped inclined surface (8) is provided on the side of the inlet (7) close to fixed plate (5), and the arc-shaped inclined surface (8) extends from the top end surface of fixed plate (5) towards grinding part (4);The spiral head fixing structure of a kind of juicer provided by the utility model, the arc-shaped inclined surface of fixed plate two sides can effectively guide the food material after cutting to enter inlet smoothly, to avoid jamming. The design of optimized cutting part realizes more efficient food material preliminary crushing, creates good condition for subsequent grinding.

This invention relates to the field of liquid preparation tank technology, specifically to a high-efficiency stirring and automatic sampling device for liquid preparation tanks. The device includes a tank body with a rotating column rotatably mounted inside. A drive assembly is provided on the tank body to drive the rotating column to rotate around its own axis. A stirring frame for stirring the liquid is fixedly mounted on the rotating column. An internal channel is formed along the axial direction of the rotating column. Multiple liquid sampling tubes are fixedly mounted on the rotating column, distributed along its axial direction and connected to the internal channel. The drive assembly drives the rotating column to rotate, thereby driving the stirring frame to achieve efficient stirring of the liquid preparation process and improve mixing uniformity. The liquid sampling tubes on the rotating column rotate synchronously with it, working in conjunction with the internal channel and the liquid sampling assembly to complete automatic sampling from multiple areas, ensuring sample representativeness. A rotary joint ensures a stable and sealed connection between the rotating and fixed pipelines. The entire device achieves coordinated operation of stirring and sampling, simplifying the operation process and improving the practicality and reliability of liquid preparation production.