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92results about How to "Dustproof and waterproof" patented technology

Passive low-frequency vibration isolator

InactiveCN102518741AImprove static stiffnessAchieve low frequency and even ultra-low frequency vibration isolationSpringsNon-rotating vibration suppressionLow frequency vibrationEngineering
The invention relates to a passive low-frequency vibration isolator, which comprises an enclosed cylindrical base, wherein the top of the enclosed cylindrical base is provided with a through hole, and the inner side wall of the enclosed cylindrical base is uniformly provided and movably connected with cylinder bodies of three dampers; a center connecting rod is inserted into the through hole in the base, and the lower end of the center connecting rod is moveably connected with piston rods of the three dampers; the top of the base is uniformly provided with three mounting fixtures; the upper part of the center connecting rod is provided with a hexagonal center clamping piece which is uniformly provided and connected with one ends of three flat springs; the other ends of the three flat springs are connected with the three mounting fixtures respectively; and the top of the center connecting rod is provided with a bearing table. The passive low-frequency vibration isolator has obvious high static stiffness and low dynamic stiffness, reduces initial isolation frequency, can realize low-frequency vibration isolation and ultralow-frequency vibration isolation, has high static bearing capacity and reduces deformation; meanwhile, by optimizing the damping structure, the vibration isolator can automatically adjust damp according to working conditions to achieve effects of inhibiting resonance and resisting impact.
Owner:UNIV OF SCI & TECH OF CHINA

Integrated door lock

The invention discloses an integrated door lock. The integrated door lock comprises a left shell, a left cover plate and a lock body; ratchet wheel shafts, a ratchet wheel shock absorption block and a detent are installed on the left cover plate, each ratchet wheel shaft is sleeved with a ratchet wheel, a ratchet wheel return spring is installed on each ratchet wheel, the ratchet wheel shafts are connected with the left cover plate in a rivet mode, and the detent penetrates through the ratchet wheel shafts and is connected with the left cover plate in a rivet mode; a buffering block and a detent shock absorption block are installed on the lock body and arranged on the two riveted ratchet wheel shafts in a sleeved mode, then an outward-opening rocker arm provided with a left outward-opening linkage arm is installed, an outward-opening rocker arm shaft is sleeved with the outward-opening rocker arm, a left outward-opening return spring is installed in, finally a left detent return spring, a left opening rocker arm and a left locking linkage arm are installed, and a left connecting plate is covered and riveted; a left current-conducting plate assembly, a worm sleeved with a worm wheel, a left signal rocker arm matched with a left signal rocker return spring, a first left worm wheel, a second left worm wheel, a left inward-opening rocker arm and a left inward-opening return spring are installed in the left shell. The integrated door lock is compact in structure, good in waterproof and dustproof performance, high in transmission efficiency, integrated in function and stable in performance.
Owner:江苏皓月汽车科技有限公司

Electret preservative film and preservative bag

The invention discloses an electret preservative film and a preservative bag, which are designed to overcome the problems that current preservative films and preservative bags are poor in antibacterial and bacteriostatic performances and poor in preserving effect. The electret preservative film and preservative bag provided by the invention use polytetrafluoroethylene or ethylene-tetrafluoroethylene copolymer plastic which is processed and refined to prepare thin film material. Electrets technical treatment is performed by an electret corona process or breakdown method. The microporous diameter of the preservative film material is ranged from 0.1 micron to 0.5 micron and the thickness thereof is arranged from 15 microns to 80 microns. Electret preservative films and preservative bags in different specifications are prepared. The invention has the advantages of antibacterial and bacteriostatic performances, enzyme activity reducing performance, waterproof and dustproof performance, good air permeability, long preserving time and high preserving degree. The electret preservative film further has the advantages of resisting acid, alkali and high temperature, is not corroded and dissolved in solvents such as water and alcohol and has stable performance, reliable safety performance and is not poisonous and harmless. The invention is novel food preservative film and bag which are the updated products of current preservative film and bag and suitable for use in preserving food in shopping malls, hotels and homes.
Owner:徐国元

MPO/MTP cluster prefabricated optical cable component

The invention discloses an MPO/MTP cluster prefabricated optical cable component which comprises an adapter component, a first plug body component and a second plug body component. Two ends of the adapter component are open and through to form an inner cavity, a guide part is disposed in the middle of the inner cavity, and sealing bodies are respectively disposed on two sides of the guide part. The first plug body component is disposed outside a first optical fiber connector. One end, located at the head of the first optical fiber connector, of the first plug body component is provided with an opening to allow the head end face of the first optical fiber connector to be exposed. The second plug body component is disposed outside a second optical fiber connector. One end, located at the head of the second optical fiber connector, of the second plug body connector is provided with an opening to allow the head end face of the second optical fiber connector. The opening end face of the first plug body component and the opening end face of the second plug body component are respectively correspondingly connected with the sealing bodies in the adapter component. The head of the first optical fiber connector and the head of the second optical fiber connector are aligned and coupled in the guide part of the adapter part to achieve dust prevention and water prevention.
Owner:SHANGHAI SFUN ELECTRICAL TECH

Passive heat dissipation server node case

The invention discloses a passive heat dissipation server node case, and belongs to the technical field of computer science. The computer processor solves the problems that an existing computer processor needs timing ash removal, has high requirements for the working environment and is single in fault detection function. The case is a closed shell, so that dust in an external working environment cannot enter the heat dissipation shell, and equipment short-circuit faults caused by the dust are reduced. A voltage sensor and a current sensor are used for collecting input and output voltage and current of a CPU main circuit board and a GPU slave circuit board; whether input and output signals and voltage and current of the system are detected at the same time. Whether software and hardware ofthe passive heat dissipation server node case work or not is monitored; the working state of the system is monitored in real time, when it is detected that the input current or voltage and the outputcurrent or voltage of the CPU master circuit board and the GPU slave circuit board are zero, it is indicated that case hardware breaks down or the system breaks down, a power source is restarted, andthe system is reset in time.
Owner:INFORMATION & COMM COMPANY OF STATE GRID HEILONGJIANG ELECTRIC POWER COMPANY +1

Drying and dust-proofing method for air filter element

The invention discloses a drying and dust-proofing method for an air filter element. The transmission speed range of a power structure in the air filter element is controlled through adjusting fan blades, the fan blades can be rotated and turned over through steel balls in order to adjust the direction and the tilt angle of the fan blades, a drive motor in a drive motor storage sleeve is started to perform test run on a rotating shaft, a speed measurement device is used to perform sensitive speed measurement on the wind power at the fan blades in every segment in order to keep the wind speed in a reasonable range, the air filter element is arranged in an apparatus, a mounting tube is connected with the motor, a fixed sleeve compacts the mounting tube through a sealing gasket to avoid air leakage at the connecting position, a positioning ring is connected with other devices to guarantee stable connection, the apparatus officially starts to work after the whole air filter element is mounted, air goes through pores in an outer protection tube and an inner isolation wall plate and enters the filter element, and the outer protection tube and the inner isolation wall plate play a role indust water proofing while supporting, protecting and reinforcing the whole air filter element.
Owner:浙江安吉铭瑞汽车销售有限公司

A telescopic remote controller with a shortcut key setting function

The invention discloses a telescopic remote controller with a shortcut key setting function. The telescopic remote controller comprises a remote controller body. The remote controller body comprises a main remote control zone and an auxiliary remote control zone. The main remote control zone is provided with a main circuit board assembly. The auxiliary remote control zone is provided with an auxiliary circuit board assembly. The main circuit board assembly is connected to the auxiliary circuit board assembly through a flat cable. The board of the main remote control zone is provide with power-on key, a shutdown key, a state indicating lamp, a fingerprint recognizer, a shortcut key and an enter key. The front end of the main remote control zone is provided with an emission window. The left side and the right side of the main remote control zone are provided with a volume increase key and a volume decrease key. The board of the auxiliary remote control zone is provided with digital keys, setting keys and common function keys. A connecting portion between the main remote control zone and the auxiliary remote control zone is provided with a spring lock block. The spring lock block receives signals emitted by a fingerprint recognizer through a fingerprint controller. According to the invention, the remote controller is divided into the main remote control zone and the auxiliary remote control zone; the auxiliary remote control zone can be controlled to pop out from the main remote control zone through fingerprint identification according to needs; and simultaneously, the shortcut key is arranged in the main remote control zone, so that the telescopic remote controller is simple and practical.
Owner:深圳新嘉浩科技有限公司

Spring key switch structure

The invention relates to a spring key switch structure which mainly comprises a light guide panel, a key, a pressure block, a printed circuit board, a support part, an annular spring and a sliding block. Pressure is applied to the key, and the sliding block is driven by the key through the pressure block to drive the annular spring to be displaced downwards, so that the annular spring is gradually expanded and deformed till forming contact with a conductive contact layer along the lower lateral surface of the annular groove to realize electric conduction; the pressure is removed, and the annular spring is separated from the conductive contact layer under the action of elastic force accumulated by expansion and deformation, and returns into an annular groove to realize electric disconnection. The spring key switch structure has the advantages of large travel, strong pressure, simplicity in assembling, high reliability, low contact resistance, long service life and the like, white light illumination, blue white light illumination or various light illumination compatible with night vision can be selected according to actual needs, and the capabilities of three proofing properties, dust prevention, waterproofness and the like of the spring key switch structure are higher than those of the conventional key switch.
Owner:SHANGHAI AVIATION ELECTRIC

Damping mechanism and mixer truck

The invention provides a damping mechanism and a mixer truck. The damping mechanism comprises a deflection part, a supporting seat, a fixing seat, a bottom plate, a first damping piece, a second damping piece and a fastening piece. When the damping mechanism with the structure is used, the fixing seat can be directly used as a shell of a speed reducer; or the fixing seat serves as a component of the damping mechanism and is connected with the shell of the speed reducer; and the supporting seat is connected with a mixer truck frame, the gravity and vibration impact force of a mixing barrel are transmitted to the first damping piece through the fixing seat, the first damping piece absorbs horizontal and axial force caused by the gravity of the mixing barrel and the vibration impact force, and stable operation of the mixer truck is guaranteed. The fixing seat is fixedly connected with the deflection part, the speed reducer is arranged on the deflection part, when the stirring barrel vibrates, vibration impact force is transmitted to the speed reducer and the deflection part, the deflection part deflects at any angle in a mounting groove of the supporting seat so as to absorb the vibration impact force of the stirring barrel, the damping mechanism is good in shock resistance, and the stability and safety of operation of the mixer truck are further improved.
Owner:SUOTE TRANSMISSION EQUIP

A Gasket Type Pressure Sensor Used to Detect Bolt Pretightening Force

The invention relates to a gasket-type pressure sensor for detecting the pretightening force of bolts, which comprises an upper cover and a casing, the upper cover is embedded in the top of the casing, and a first The elastic body, the upper pole plate, the second elastic body, the first elastic body, the upper pole plate and the second elastic body are respectively provided with second circular holes of the same size, and the upper pole plate is connected with an AC for measuring the capacitance value. The measuring instrument, the upper cover and the casing together constitute the lower plate, and there is no contact between the upper plate and the lower plate. When the first elastic body and / or the second elastic body are compressed and deformed, the upper plate and the lower plate The distance between the plates changes, so that the capacitance value generated between the upper plate and the lower plate changes, and the pre-tightening force of the bolt is detected according to the change of the capacitance value. Compared with the prior art, the present invention uses the elastic body and the parallel plate capacitor as the basic electromechanical conversion structure, and combines with the AC measuring instrument to detect the bolt pretightening force accurately in real time.
Owner:TONGJI UNIV

Magnetic force line observer

The invention provides a magnetic force line observer. The magnetic force line observer has the advantages of convenient use and easiness in processing, and is applicable to the observation of magnetic force line distribution. With the magnetic force line observer adopted, magnetic force line distribution can be observed intuitively and quickly. The magnetic force line observer check comprises a box body, a box cover, a plurality of compasses and compass rotation shafts; the box body and the transparent box cover constitute a sealed space; the compasses are rotationally arranged between the box body and the box cover through the compass rotation shafts which are in one-to-one correspondence with the compasses; and the compass rotation shafts are parallel to each other. The box body and the box cover constitute the sealed space, and therefore, the magnetic force line observer has dustproof and waterproof effects. When the magnetic force line observer is used, the magnetic force line observer is made to approach a measured magnet, the plurality of compasses deflect by different angels under the action of the magnetic force lines of the measured magnet; and through observing the deflection situations of the plurality of compasses, a user can master the magnetic force line distribution pattern of the measured magnet. The magnetic force line observer has the advantages of convenient use and easiness in processing. With the magnetic force line observer adopted, magnetic force line distribution can be observed intuitively and quickly.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Connector and electric oven with same

The invention discloses a connector and an electric oven with the connector, which belong to the technical field of electrical appliance manufacturing. The connector comprises a base which is substantially in a square structure and comprises a first end and a second end, and at least one eccentric swing member which is arranged on the first end of the base and can rotate around the fixed point thereof. A first jack is arranged in the middle of the base. An energizing component is arranged in the first jack. The connector further comprises a U-shaped cover which is movably arranged between two ends of the base. The U-shaped cover is provided with a through hole corresponding to the first jack. When the eccentric swing member rotates, the U-shaped cover located in the swing region of the eccentric swing member is pushed to move toward the second end of the base. The through hole and the first jack are overlapped or staggered to open or block the first jack. The connector further comprises two stop members arranged on two end parts of the base and an elastic member. One end of the elastic member is connected with the stop member on the second end, and the other end abuts against theU-shaped cover. The elastic member expands and contracts under an external force to bounce the U-shaped cover from the second end back to the first end along the base.
Owner:ZHONGSHAN KISENSE

Wall protection plate system

The invention relates to the field of home decoration, in particular to a wall protection plate system which comprises a wall protection plate body, a top line assembly, a skirting line assembly and a wall protection plate connecting assembly. A wall protection plate connecting assembly is arranged between the wall protection plate body and a wall body, and the wall protection plate body is hung on the wall body; the top line assembly is installed between the top of the wall protection plate body and a ceiling for closing up, the top line assembly comprises a square pipe and an EV pad, the square pipe is connected with the ceiling, the EV pad is arranged between the top of the wall protection plate body and the square pipe, and the square pipe and the EV pad are parallel to the top face of the wall protection plate body; the skirting line assembly is installed between the bottom of the wall protection plate body and the ground for closing up, the skirting line assembly comprises a transversely-extending skirting line sectional material which is fixed to a wall body, and the skirting line sectional material comprises a bearing part which is arranged below the bottom face of the wall protection plate body in parallel. And the top line assembly and the skirting line assembly are arranged, so that gaps between the wall protection plate and the ceiling and between the wall protection plate and the ground can be closed and shielded, the dustproof and waterproof effects are achieved, and the overall attractiveness of the wall protection plate system is improved.
Owner:ZHONGSHAN XIWEI KITCHEN EQUIP MFG

Display board having splicing structure and used for information technology teaching

The invention relates to the technical field of information technology teaching, in particular to a display board having a splicing structure and used for information technology teaching. The display board comprises a first display board, wherein a connecting hinge is mounted above the first display board, a second display board is movably mounted on the right side of the first display board, the first display board is movably connected with the second display board through the connecting hinge, a limiting splicing clamping groove is formed in the first display board, a limiting splicing clamping block is installed in the limiting splicing clamping groove, and a splicing display board is installed at the front end of the first display board. According to the display board used for information technology teaching, the splicing display board is spliced on the first display board through the limiting splicing clamping groove and the limiting splicing clamping block, so that the display area of the display board for information technology teaching can be increased according to use requirements, the first display board and the splicing display board are simple and convenient to mount and dismount, and a large amount of display board mounting time can be saved.
Owner:CHONGQING NORMAL UNIVERSITY

Compressor and air conditioner with same

The invention provides a compressor and an air conditioner with the same. The compressor comprises a shell, a driving part, a protective shell and a wiring part, wherein the shell is provided with a first containing cavity; the driving part is arranged in the first containing cavity; the protective shell is detachably connected with the shell, the protective shell is provided with a second containing cavity and a third containing cavity, and the second containing cavity is communicated with the third containing cavity; the wiring part comprises a binding post and a wiring terminal, a part of the binding post is arranged in the second containing cavity, the first end of the binding post extends into the first containing cavity to be electrically connected with the driving part, the wiring terminal is arranged in the third containing cavity, the second end of the binding post extends into the third containing cavity to be electrically connected with the wiring terminal, and the wiring terminal comprises an outgoing line; and the outgoing line extends out of the third containing cavity and is electrically connected with an external power supply structure. The compressor solves the problem that in the prior art, an installation and fixing structure of the binding post of the compressor of the air conditioner is complex.
Owner:GREE ELECTRIC APPLIANCES INC
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