13results about How to "Simple sealing structure" patented technology

This utility model discloses a vulcanized rubber sealing structure, including a metal skeleton and a rubber body. One end of the metal skeleton is tapered, and the diameter of the tapered structure gradually decreases outward along the axis. The apex angle of the axial section of the tapered structure is 1. The tapered surface of the metal skeleton is provided with an annular groove perpendicular to the center along the radial direction. The rubber body is placed in the annular groove and vulcanized with the metal skeleton. The outer surface of the rubber body is a tapered structure, and the apex angle of the axial section is 2. By controlling the angle between the vulcanized rubber and the sealing surface, the vulcanized rubber sealing structure is optimized to prevent the rubber from cracking due to pressure during sealing, resulting in high reliability.

The utility model provides a cold chain logistics temperature control container door sealing structure, including box, box door, sealing layer and lock bar, the box is equipped with outer layer and inner layer respectively, the box door establishes in the one end of box, the box door includes first door and second door, the recessed lock groove is equipped in the first door middle part, the second door middle part is equipped with the lock ring of protruding, the sealing layer establishes in the back of first door, the sealing layer is the form of covering the inside of outer layer, and the sealing layer includes door body and sealing strip, the lock bar is worn in the lock ring, and the lock bar can be worn in the inside of lock groove, the utility model's beneficial effects are: its structure design is simple and reasonable, has the sealing structure of further improving temperature control container box door, the sealing layer of the box door of being equipped with is worn in the inside of box, and the sealing layer adopts the sealing strip and the junction of box door, however the sealing strip also is worn in the inside of box, helps sealing layer to reduce the irradiation of ultraviolet, improves the life of sealing layer use.

The utility model belongs to the technical field of wine jar, specifically relates to a integrally formed glass wine jar, it includes jar body, characterized by: the lower part of jar body is equipped with the valve seat of integrally forming with jar body, is equipped with the valve cavity in the valve seat, the upper end of valve cavity is the mounting port, the lower end is communicated valve nozzle, the inner diameter of valve nozzle is less than valve cavity, and valve cavity is linked together with jar body, still include valve cover and elastomer, valve cover can be assembled on the mounting port, the top wall of valve cover is equipped with through -hole, is equipped with valve rod in through -hole, the lower part of valve rod is located in valve cavity, the lower part of valve rod has valve head, valve head can block valve nozzle, the lower end of elastomer is connected valve rod, and the upper end is connected valve cover, the jar only needs to install valve cover and valve rod on the valve seat, reduces the connection between valve seat and jar body and the sealing of junction, not only has simplified the connecting structure between discharge valve and jar body, still makes the connection between discharge valve and jar body and the service life of jar body, avoids the connecting part of both to leak due to the sealing problem.

This utility model discloses a low-temperature resistant microphone structure, relating to the field of microphone technology. It includes a microphone, a housing, and a mounting base. The microphone comprises a microphone head and a microphone rod. The microphone rod enters the housing through a through-hole at the top of the housing. The end of the microphone rod is threaded into a threaded hole in the mounting base. The mounting base is detachably connected to the bottom of the housing. This utility model design tightly winds a heating wire into a groove on the outer surface of the microphone rod, ensuring a closer contact between the heating wire and the microphone rod, resulting in more efficient heat transfer. The heating wire is less prone to displacement during operation. Teflon tape secures the heating wire, ensuring stability. An insulating sealing gasket is fitted onto the microphone rod to enhance insulation, preventing cold air from entering the housing and avoiding internal heat loss, thus ensuring the stability of the sensor in low-temperature environments.

The utility model belongs to the technical field of water treatment relates to a kind of domestic ceramic membrane purifier, including filter element, filter drum and two end caps, and the end cap of two ends is respectively provided with water inlet and water outlet and is connected with the porous channel in filter element, water outlet connected with the water purification channel outside filter element is provided on the filter drum, the both ends of the filter drum are fixed with connecting ring, the inner wall end portion of the connecting ring away from filter drum is provided with first taper surface, the inner wall end portion of the end cap close to filter drum is provided with second taper surface, the first taper surface, second taper surface and filter element outer wall form sealed cavity, O-ring is provided in the sealed cavity, the contact surface of O-ring and first taper surface, second taper surface and filter element outer wall all form sealing structure.The domestic ceramic membrane purifier provided by the utility model has the advantages of simple structure, small pollution, high flux, long service life and low use cost.

This invention provides a passive magnetorheological damper with adjustable swing gap, comprising a cylinder, a piston rod, and a piston assembly. The cylinder includes a cylinder barrel with openings at both ends along the axial direction and end caps respectively connected to the openings of the cylinder barrel. The piston assembly is slidably disposed within the cylinder barrel. The connecting end of the piston rod is connected to the piston assembly, and the free end of the piston rod extends axially through the end caps. The piston assembly includes a piston end cap and several damping components distributed circumferentially on the piston end cap. The connecting ends of the damping components are hinged to the piston end caps, and the free ends of the damping components can be driven to move away from the inner wall of the cylinder barrel. The invention also includes an adjustment component disposed within the cylinder barrel, which drives the free ends of the damping components to swing away from the inner wall of the cylinder barrel around the hinge point. This damper requires no external power supply or sealing element, has a mechanically adjustable swing gap, a compact structure, and a large output damping force, which is beneficial for the further promotion and application of magnetorheological technology.

This utility model discloses a butterfly valve structure with optimized sealing performance, including a butterfly valve body. Connecting pipes are provided at both ends of the butterfly valve body. A connecting assembly is provided between the butterfly valve body and the connecting pipes. The connecting assembly includes a fixed sleeve fixed to the surfaces of both ends of the butterfly valve body. A fixed ring is fixedly connected to the surface of the connecting pipe. A movable sleeve is provided on the side of the fixed ring away from the fixed sleeve. The movable sleeve is fitted onto the surface of the connecting pipe. An external thread is formed on one side of the movable sleeve surface. An internal thread matching the external thread is formed on the inner surface of the fixed sleeve. A rotating ring is fixedly fitted on the other side of the movable sleeve surface. By designing the butterfly valve body, connecting pipes, and connecting assembly, personnel can quickly connect the butterfly valve body to the connecting pipes. The operation is simple, time-saving, and labor-saving, effectively improving installation efficiency. The overall structure is compact and worthy of widespread use.

This utility model discloses an ultra-low temperature top-mounted ball valve with a valve seat sealing structure, relating to the field of valve equipment technology. It includes a valve body and a ball disposed within the valve body's internal cavity. The valve body has an inlet and an outlet end, respectively. Both the inlet and outlet ends of the valve body are equipped with valve seat support rings. A valve seat is disposed between the valve seat support ring and the ball, with the valve seat support ring pressing the valve seat against the ball surface to form a sealing fit. An annular support ring groove is coaxially provided on the side of the valve seat support ring closest to the ball, and the valve seat is embedded in the support ring groove with an interference fit. A stepped surface is provided on the side of the valve seat located within the support ring groove, and a sealing ring is fitted onto the stepped surface. The width of the stepped surface is greater than the width of the sealing ring. The sealing ring can move axially under the pressure of the medium, thereby sealing any gaps created, improving sealing performance, and preventing leakage at the mating part between the valve seat and the valve seat support ring.

This utility model relates to the field of dust collector bag technology, specifically a dust collector bag that is easy to connect and fix. It includes a bag body fitted onto a bag frame. The bag body is characterized by a steel wire ring at its top, and multiple sets of rubber strips fixed to the inner wall of the bag body, with grooves on the surface of the rubber strips. The beneficial effect is that by integrally forming a cloth cover around the top of the bag body, and setting steel wire rings on the top and bottom surfaces of the inner wall of the cloth cover, during installation, after fitting the bag body onto the bag frame, pulling downwards causes the cloth cover to fit over the top of the frame. Using pliers, the steel wire rings are twisted through the cloth cover, tightly securing them to the top ring of the bag frame. Simultaneously, the rubber sleeve on the inner ring of the cloth cover increases the friction between it and the top ring of the frame, further strengthening the connection and effectively preventing the bag body from falling off during use, ensuring stable dust collection.

This invention discloses a rotary reaction apparatus and process suitable for high-temperature molten salt pyrolysis of biomass. The reaction apparatus includes a molten salt purging device, a molten salt inlet, a compartmentalized molten salt tank, an integrated stage, a nickel-based alloy mesh, a motor, a reaction apparatus shell, a gas detection system, a temperature detection and control system, baffles, and a heating layer. The apparatus is made of high-temperature and corrosion-resistant materials, making it suitable for high-temperature and highly corrosive environments. Based on the synergistic effect of the molten salt characteristics and the reaction apparatus, the utilization efficiency of the molten salt is effectively improved and the mass and heat transfer processes are enhanced through the significant thinning and renewal rate of the liquid film under hypergravity conditions. By adjusting the molten salt feed rate and the rotation speed of the rotary table, the pyrolysis process under different mass and heat transfer efficiencies can be explored. This invention can be extended to reaction systems such as liquid metals. The assembly of this invention is relatively efficient, with low investment, and it can explore the influence of mass and heat transfer during the pyrolysis process on the products, thereby obtaining relevant thermodynamic and kinetic parameters.

This utility model relates to the field of twin-screw pump technology, specifically to a twin-screw pump with a magnetic oil seal bearing housing. It includes a pump body, and a drive shaft and a driven shaft disposed within the pump body. Both the drive shaft and the driven shaft are equipped with, or integrally formed with, left-handed and right-handed helical sleeve assemblies, and the two sets of helical sleeve assemblies are in a meshing state. The pump body is connected to a drive-end bearing housing and a gear-end bearing housing via several double-ended bolt assemblies. Mechanical seals are installed in both the drive-end bearing housing and the gear-end bearing housing. The drive-end bearing housing, the gear-end bearing housing, the drive shaft, the driven shaft, and the mechanical seals complete the shaft seal with the conveyed medium. The magnetic oil seal consists of a stationary ring assembly and a rotating ring assembly. This utility model, by configuring the drive-end bearing housing to achieve oil lubrication, significantly improves the bearing life of the twin-screw pump.

The utility model discloses electric steamer, including the base of being equipped with water tank and the juice receiving disc of being placed on the base, be equipped with the water storage cavity and steam generation cavity of independent setting in the water tank, be equipped with the water replenishment channel of limiting water by the water storage cavity flow to steam generation cavity between the water storage cavity and steam generation cavity, and the water storage cavity top is open and forms the water inlet, and the water replenishment channel has the water outlet with steam generation cavity intercommunication and higher than steam generation cavity bottom surface, and the base still includes the water control switch for controlling the opening and closing of water replenishment channel, and the water control switch is used for closing water replenishment channel when the juice receiving disc is separated from the base, and the juice receiving disc is sealed with the base cooperation to water inlet, and the water control switch is used for opening water replenishment channel when water inlet is sealed. The utility model discloses electric steamer, and the user is convenient to the water storage cavity and adds water, and the water is simple and convenient to add, in addition, can also realize the automatic replenishment of a certain water amount to steam generation cavity, to realize the effect of fast steam, prevent dry burning.

The utility model provides a kind of rotary equipment discharge pipe sealing device, moving ring includes the dynamic connection ring and dynamic sealing ring connected as a whole, dynamic connection ring is fixedly sleeved on discharge pipe;Static ring includes static connection ring, first static sealing ring and second static sealing ring, static connection ring is fixedly sleeved on the discharge pipe, the recess of first static sealing ring and second static sealing ring is covered on the cross structure of dynamic sealing ring, forms four overall annular cavities, four cavities are all tightly filled with sealing packing, first static sealing ring and second static sealing ring are connected and fixed by connecting piece, so that first static sealing ring and second static sealing ring will sealing packing be pressed on dynamic sealing ring. Contact sealing is carried out to discharge pipe and discharge pipe by four-corner distribution sealing packing, sealing effect is good, structure is simple, convenient to assemble and disassemble, service life is long, and axial movement resistance and radial deflection resistance effect are good.