70results about How to "Does not affect airtightness" patented technology

The invention discloses an air spring-magnetic suspension combined vibration isolator. The combined vibration isolator comprises air springs (17), a magnetic suspension vibration isolator body (18) and a connecting component (19). The magnetic suspension vibration isolator body (18) is arranged between inner bag bodies (7) of the air springs (17). The connecting component (19) comprises a thrust disc (4), a pressing plate (5) and balls (3) with a holder, wherein the balls (3) with the holder are arranged on the thrust disc (4) in the vertical direction. The thrust disc (4) and the pressing plate (5) are connected with a connecting rod (1) of the magnetic suspension vibration isolator body (18) and an upper cover plate (8) of the air springs (17). The air spring-magnetic suspension combined vibration isolator has the advantages of being wide in working band, high in reliability, compact in structure, high in bearing capacity, convenient to maintain and the like and has great application prospects in the field of marine power plant vibration isolation.

The invention relates to the field of rubber and particularly relates to a tire air-tight layer rubber composite containing a nano filler StronWiNTC. The tire air-tight layer rubber composite is characterized by comprising the following raw materials in parts by weight: 25-45 parts of natural rubber, 20-40 parts of butylbenzene rubber, 15-55 parts of chlorinated butyl rubber, 52-60 parts of carbon black N660, 20-28 parts of StronWiNTC, 4-6 parts of aromatic hydrocarbon oil, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1-2 parts of anti-ageing agent 4020, 1-2 parts of anti-ageing agent RD, 3-4 parts of protective wax OK5194, 3-4 parts of tackifying resin A-90, 1-2 parts of accelerator TMTD (Tetramethylthiuram Disulfide), 1-2 parts of accelerator CZ and 0.5-1.0 part of vulcanizing agent WP5. The tire air-tight layer rubber composite disclosed by the invention can endow good mechanical property and heat stability to the air-tight layer and can improve the air tightness of air-tight layer rubber; and particularly, the tire air-tight layer rubber composite has appropriate advantages on the aspects of performances of elasticity, flexing resistance, stable size, separation performance, elongation at rupture, compression and deformation and the like.

The invention discloses refrigerating equipment, which comprises a box body, a door body and a door seal, wherein the top of the box body is open; the door body is used for opening and closing the box body; the door body is connected to the top of the box body in a pivoting way; the door body comprises a door liner; a groove which is depressed upwards is formed on the lower surface of the door liner; the groove is close to the outer edge of the lower surface of the door liner and surrounds the outer edge by a circle; the upper part of the door seal is clamped in the groove; when the door body is closed, the lower part of the door seal is sealed in a way of being pressed against the top of the box body; and when upward external force is applied to the door body, a ventilation channel is formed between the door seal and the groove. According to the refrigerating equipment disclosed by the invention, the upper part of the door seal is clamped in the door liner and can move relative to the door liner to form the ventilation channel to prevent external air from entering the box body, so that balance of internal and external air pressures of the box body is realized, the door is very easy to open, and the air tightness between the door body and the box body is not influenced when the door body is closed once again.

The invention discloses an anti-explosion device of a lithium battery. The anti-explosion device comprises a substrate and an anti-explosion mechanism arranged on the substrate, wherein the anti-explosion mechanism comprises a pressure release hole, a baffle plate, air inlet holes, connection holes, extrusion holes and an extrusion balloons; the substrate is provided with the air inlet holes on both sides of the baffle plate; one side which is close to the baffle plate of each connection hole is provided with an extrusion hole; the extrusion balloons are arranged on lower mounting sleeves. Theinvention further discloses a lithium battery. The lithium battery comprises a lithium battery body and an anti-explosion device of the lithium battery body, wherein the lithium battery body is fixedto the substrate through a screw. According to the anti-explosion device disclosed by the invention, the balloons are provided, and opening and closing of the pressure release hole are realized in cooperation with the baffle plate, so that anti-explosion pressure release can be performed; the balloons can be used repeatedly, have flexible structures, and are free from friction and abrasion, so that airtightness is not influenced; the anti-explosion device is very worthy of popularization; the anti-explosion performance of the lithium battery provided with the anti-explosion device can be improved better and more stably; the anti-explosion device is very effective.

The invention discloses a power lithium battery safety valve, which comprises a valve body, an air inlet pipe, a low-pressure exhausting mechanism and a high-pressure exhausting mechanism, wherein thelow-pressure exhausting mechanism and the high-pressure exhausting mechanism are arranged in an inner cavity of the valve body; the air inlet pipe is fixed in the inner cavity of the valve body; thevalve body is respectively provided with a high-pressure exhaust opening and a lower-pressure exhaust opening on the inner side walls of the two sides of the air inlet pipe; the low-pressure exhaust mechanism comprises a first buffer air pipe, a second buffer air pipe, a low-pressure air inlet pipe, a low-pressure exhaust pipe, a connecting pipe and a gas storage cavity; the high-pressure exhaustmechanism comprises a high-pressure exhaust pipe; the two ends of the high-pressure exhaust pipe are respectively communicated and connected onto the high-pressure exhaust opening and the air inlet pipe; the high-pressure exhaust pipe is arranged at one side, far away from a plunger piston, of the low-pressure air inlet pipe. Through the arrangement of the low-pressure exhaust mechanism and the high-pressure exhaust mechanism, when the air pressure of the waste gas is too high, the high pressure can be instantly released; the explosion is prevented; when the air pressure of the waste gas is low, the waste gas cannot be discharged into the atmosphere at low pressure; the airtightness of the safety valve cannot be influenced; the power lithium battery safety valve is worthy of being popularized.

The invention discloses a battery pack and a vehicle with same. The battery pack comprises a box body; a cover body, wherein the box body is covered with the cover body, so that a containing space isdefined between the box body and the cover body; a battery module which is arranged in the accommodating space; wherein the cover body is provided with an anti-vibration piece, and the anti-vibrationpiece is at least arranged at the maximum vibration mode area of the cover body. According to the battery pack disclosed by the invention, the anti-vibration part is at least arranged in the area withthe maximum vibration mode of the cover body, so that the first-order mode of the cover body is improved, the amplitude and abnormal sound of the cover body are reduced, the shape of the cover body is not changed, and the air tightness of the battery pack is not influenced.

The invention relates to a vacuum emulsification tank. The side wall of a tank body is provided with at least one observation port. Each observation port is provided with a sealing cover. Each sealingcover includes a cover body structure. One end of each cover body structure is hinged to the side wall of the tank body so that the cover body structure can be opened or closed relative to the corresponding observation port. A hollow zone in each cover body structure is provided with an observation window corresponding to the position of the observation port. Each observation window is provided with transparent glass in a sealed manner. In a state that each sealing cover is closed relative to the corresponding observation window, the cover body structure covers the observation port, the periphery edge of the cover body structure is tightly adhered to the external surface of the tank body, and the observation window in the cover body structure is at least partially overlapped with the observation port. The tank is simple in structure and good in reliability, states of a medium in the tank can be observed clearly, and air impermeability of the inside of the tank is not influenced.

The invention discloses a civil electromagnetic type gas emergency cut-off valve containing an energy storage valve closing module, wherein an electromagnetic coil component containing the energy storage valve closing module is connected with a valve body by a closed permanent magnetic lock component; a movable component is mounted in the valve body; the electromagnetic coil component containing the energy storage valve closing module comprises the energy storage valve closing module and an electromagnetic coil which are integrally connected by a cable; the energy storage valve closing module is provided with a redundancy control circuit, and is connected with an alarm by a cable; by the alarm, the energy storage valve closing module is supplied with power and stores energy. When a valve closing / interrupt signal of the alarm is received, the stored electric energy is automatically released by the redundancy control circuit of the energy storage valve closing module to the electromagnetic coil, so that the permanent magnetic lock is unlocked by oriented magnetic force which is generated by the electromagnetic coil, meanwhile the spring force is released to push the movable component so as to enable a sealed valve flap to close the valve, and then the valve can only be opened by manual operation. According to the civil electromagnetic type gas emergency cut-off valve, the closed permanent magnetic lock component which is made from a non-magnetic metal material is used as a valve cap, and airtight connection between a sealing component and the valve body is employed to absolutely prevent liquid or impurities from entering a permanent magnetic lock cylinder from the outer part of the valve body, thereby enhancing reliability of the permanent magnetic lock.

The invention relates to the field of sample preserving devices, in particular to a urine sample preserving device. The urine sample preserving device comprises a bowl-shaped portion, a catheter and astorage box, wherein the lower end of the bowl-shaped portion is connected with the catheter, the catheter is provided with a valve, the lower end of the catheter is connected with the storage box, the middle of the bottom of the storage box is provided with a discharging pipe, the lower end of the discharging pipe is provided with a seal cover, the outer side of the inside of the storage box isperipherally provided with multiple stirring assemblies, and the top of the storage box is provided with a rotary ring for driving the stirring assemblies to rotate peripherally simultaneously. By arranging the magnetically driven stirring assemblies, the storage box can be kept in a closed state, the airtightness of the storage box is not affected even if homogeneous mixing is carried out, and the follow-up detecting accuracy is improved.

The invention relates to a building energy-saving casement window structure with anti-mosquito and anti-falling functions for children. The building energy-saving casement window structure comprises an outer frame, a protective guard, an invisible screen window assembly and at least one movable window sash, the outer frame is of a broken bridge structure with an inner flange and an outer flange, an inner flange sectional material is arranged on the inner flange, an outer flange sectional material is arranged on the outer flange, and the invisible screen window assembly is arranged on the outerflange sectional material; a plug is arranged on the outer frame, and a fastening rubber strip is arranged in the position, corresponding to the plug, of the protective guard; and the invisible screen window assembly comprises an upper rail, a lower rail, a screen, a handle, a screen box and a screen drum, a damper assembly is arranged at the top of the screen box, and a lower box cover rotatingmechanism assembly is arranged at the bottom of the screen box. The energy-saving casement window structure is suitable for refitting energy-saving doors and windows of newly-built buildings and existing residential buildings (installed or delivered houses), the building energy-saving casement window with the functions of preventing mosquitoes and preventing children from falling is formed, the structure is stable, and the cost is low.

The invention discloses a die-casting die capable of preventing die expansion, and relates to the field of die casting. The die-casting die comprises a base, an extrusion opening is formed in the base, the extrusion opening is connected with an injection molding device, an upper die is fixedly arranged on the lower side of the base, and guide rails are fixedly arranged on the left side and the right side of the base. According to the die-casting die, through an exhaust mechanism main body arranged in the parting surface, accumulated gas in all directions is detected, then the accumulated gas is exhausted, meanwhile, the airtightness of the gas in the direction is not affected, so that the effect of completely exhausting residual gas is achieved, the purpose of avoiding damage caused by die expansion due to air pressure rise caused by unsmooth exhaust of the device and accumulation of the residual gas is achieved, a lifting plate descends through a threaded shaft, so that a gas hole is in communication with the forming space through a through hole, then most of gas in the forming space is extracted through the gas extraction effect of an extraction pump, the effect of reducing the resistance of molten liquid flowing into the forming space is achieved, and the purpose of preventing die expansion is achieved.

The invention discloses a high-pressure reaction kettle which comprises a kettle body and a kettle cover, the kettle cover is connected to the top of the kettle cover, a magnetic sealing assembly is connected between the kettle cover and the kettle body, the kettle body sequentially comprises a heat preservation layer, a heating layer and an inner container from outside to inside, and a stirring shaft is rotatably connected to the central axis in the kettle body. The stirring shaft is driven to rotate by a driving system arranged on the kettle cover, stirring blades are fixed on the stirring shaft, the stirring shaft is an electric heating rod, and the heating layer, the electric heating rod and the driving system are respectively and electrically connected to a control panel. The stirringefficiency and the kettle body sealing performance can be considered at the same time, the integration of temperature measurement and a control device is realized, the heat transfer efficiency in thereaction kettle is enhanced, the reaction efficiency and the experiment safety are further improved, and the innovative significance is realized.

The invention discloses an anti-slurry-pollution method for a spray tower observation window. The anti-slurry-pollution method comprises the following steps that an inner sliding plate and an outer sliding plate are installed, the left sides and the right sides of the inner sliding plate and the outer sliding plate are provided with limiting devices, an inner sliding plate cleaning part is installed, a spray preparing phase is observed, spray is observed, and the upper half part of an inner transparent plate is cleaned. According to the anti-slurry-pollution method for the spray tower observation window, under the premise that an existing spray tower body structure is not changed and the gas-tightness of a spray tower is not influenced, a spray rod, a nozzle angle and the spray effect are observed conveniently through an existing observation window, the observation effect of the observation window is clear, and the observation window is not prone to being polluted.