47results about How to "Prevent air pressure" patented technology

An acoustic transducer has a substrate having a cavity, a vibrating electrode plate disposed above the substrate and having a void portion that allows pressure to escape, a fixed electrode plate disposed above the substrate opposite the vibrating electrode plate, and a leak pressure regulation portion that hinders leakage of air pressure by passing through the void portion when the vibrating electrode plate is not undergoing deformation, and that becomes separated from the void portion and allows pressure to escape by passing through the void portion when the vibrating electrode plate undergoes deformation from being subjected to pressure.

The invention discloses an automatic press-connection machine of a connector and a press-connection system and press-connection process thereof. The automatic press-connection machine comprises a machine body, a portal frame supporting and guiding assembly, a material guiding assembly, a press-connection head replacing assembly and a press-connection assembly; the press-connection system comprises an IPC control chip, a height sensor connected with the IPC control chip, a CCD module, a movement control card, a linear motor and a data acquisition card; the press-connection process comprises a PARS press-connection module, a pressure press-connection module and a distance press-connection module. The automatic press-connection machine of the connector and the press-connection system and press-connection process thereof are applicable to a modern assembly line, fully-automatic material guiding control is adopted, a plurality of press-connection head components are arranged therein, multiple types of press-connection modes are correspondingly matched with the press-connection head components, in the press-connection process, pres-connection heads are replaced automatically, and product press-connection diversity is achieved.

A vehicle fuel cap of the present invention comprises a casing body for opening / closing a filler opening of a filler neck communicating with a fuel tank; and a lid that is equipped at an upper portion of the casing body and is formed of a conductive material, and the vehicle fuel cap forms a discharge portion in the lid for discharging static charged in the lid to the filler neck, wherein the discharge portion comprises a projection form provided on an inner peripheral face of the lid opposite to an outer peripheral edge of the filler opening, and on the inner peripheral face a longitudinal groove is formed at both sides of the discharge portion and along an axial direction of the casing body.

The invention discloses a domestic intelligent agitation hair dyeing comb, which comprises a dyeing comb main body, a paste body premixing device, a fixing seat, a paste storing tank, a mixing and agitating device, a paste storing chamber, a dyeing comb back cover and an actuating device, wherein the dyeing comb back cover is buckled on the dyeing comb main body; the actuating device is arranged on the dyeing comb main body and penetrates through the dyeing comb back cover; one side of the dyeing comb main body is provided with dyeing-comb comb teeth; the paste storing chamber is fixedly connected into the dyeing comb main body; the mixing and agitating device communicates with the paste storing chamber; the mixing and agitating device and the paste body premixing device are fixed together through a buckle; the paste body premixing device is fixedly arranged between the fixing seat and the dyeing comb main body; the paste storing tank is fixedly connected below the fixing seat. The double paste body automatic mixing type design and binary bagged dyeing paste are adopted for the domestic intelligent agitation hair dyeing comb, a paste body can be guaranteed not to be corroded and oxidized to discolor due to the contact with relevant metal, the usage and the operation are more convenient, a valid period is longer, a binary filling process is implemented by adopting a phi 20mm sealing female valve, and the female valve has a quick infilling effect.

Provided is a front fork spring leg capable of stably maintaining air spring characteristics. The front fork spring leg has an inward-facing seal member, an outward-facing seal member, and a piston ring arranged on an outer periphery of a guide of a guide rod sequentially in this order along an axial direction of the guide from the side close to an inner air spring chamber toward the side far from the same. The inward-facing seal member has a lip which is slidably in contact with the inner periphery of the guide cylinder, with this lip being oriented toward the inner air spring chamber while the outward-facing seal member has a lip which is slidably in contact with the inner periphery of the guide cylinder, with this lip being oriented in the opposite direction to the inner air spring chamber.

A systematized multi-point sensors unit for a tire and a tire having the same are provided. More specifically, the systematized multi-point sensors unit includes: a sensor module composed of a plurality of sensors and attached onto an inner surface of a tire to monitor conditions of a tire and a road surface, and a connection member for connecting the plurality of sensors by wire, wherein the plurality of sensors are connected to each other by wire and arranged in a line in a manner of being perpendicular to a traveling direction of the tire.

Systems and methods are disclosed for an automatic and continuous supply of coating material to a coating applicator in optical fiber fabrication. The present invention switches from one coating reservoir to another by way of a transitional period in which both coating reservoirs are supplying coating material to the coating applicator. For example, while an in-use reservoir is supplying the coating material to the coating applicator, a standby reservoir is being filled, settled to off gas air bubbles and then slowly pressurized. A sized orifice is used to slowly bleed off pressure from the in-use reservoir at a rate that does not allow the pressure in the in-use reservoir from falling out of a desired pressure range. When the in-use reservoir is substantially emptied of coating material and the pressures in both reservoirs are substantially equalized, then both reservoirs simultaneously supply coating material to the coating applicator for a period of time before switching completely over to the standby reservoir.

A tire pressure sensor including a body, a sealing member and a circuit and signal transmission apparatus is provided. The body includes a first casing, a first hole, a receiving portion and a second casing. The receiving portion connects with the first hole passing through the first casing. The sealing member includes a second hole that is set through the rubber component of and communicates with the first hole. The sealing member is located in the receiving portion. The circuit and signal transmission apparatus includes a circuit apparatus and a hole. The hole positioned on the surface of the circuit apparatus communicates with the first hole and second hole to form an air seal channel. The air pressure of the tire is injected through the air seal channel into the hole, and the tire pressure sensor can detect the pressure and temperature of the air of the tire.

A vehicle fuel cap comprises a casing body for opening / closing a filler opening of a filler neck communicating with a fuel tank; and a lid that is equipped at an upper portion of the casing body and is formed of a conductive material, and the vehicle fuel cap forms a discharge portion in the lid for discharging static charge in the lid to the filler neck, wherein the discharge portion comprises a projection form provided on an inner peripheral face of the lid opposite to an outer peripheral edge of the filler opening, and on the inner peripheral face a longitudinal groove is formed at both sides of the discharge portion and along an axial direction of the casing body.

An acoustic transducer has a substrate having a cavity, a vibrating electrode plate disposed above the substrate and having a void portion that allows pressure to escape, a fixed electrode plate disposed above the substrate opposite the vibrating electrode plate, and a leak pressure regulation portion that hinders leakage of air pressure by passing through the void portion when the vibrating electrode plate is not undergoing deformation, and that becomes separated from the void portion and allows pressure to escape by passing through the void portion when the vibrating electrode plate undergoes deformation from being subjected to pressure.

The invention discloses a feed vehicle capable of alarming material shortage. The feed vehicle comprises a frame and a hopper. Wheels are mounted at the bottom of each of four legs of the frame. The hopper is fixed to the frame and provided with a weighing sensor and a timing controller. An alarm is disposed at the top of the frame. The weighing sensor can sense and display weight of residual powder materials in the hopper at any time, when the weight is lowered than a preset limit value, the alarm gives out an alarm to remind a feeder to feed timely, when the alarm lasts longer than a preset time and the feeder does not feed power materials to the feed vehicle timely, the time controller automatically stops the corresponding punching machine to avoid empty die punching, and accordingly the service lives of dies are prolonged, safety accidents are avoided, and production of unqualified products is avoided.

Provided are an in-vehicle reporting apparatus and a reporting system configured to prevent errors in reporting. The in-vehicle reporting apparatus stores a mounting position of each tire in association with identification information identifying the tire, a vehicle height acquisition unit acquires a vehicle height of the vehicle, a vehicle height determination unit determines whether the vehicle height is greater than or equal to a predetermined height, and a reporting unit reports information that depends on the mounting position of a tire stored in the storage unit in association with acquired identification information and on acquired air pressure information of the tire when the acquired vehicle height is not greater than or equal to the predetermined height, and does not report information that depends on the mounting position of the tire, when the acquired vehicle height is greater than or equal to the predetermined height.

A front fork spring leg, which is capable of stably maintaining air spring, has an inward-facing seal member, an outward-facing seal member, and a piston ring arranged on an outer periphery of a guide of a guide rod sequentially in this order along an axial direction of the guide from a side close to an inner air spring chamber toward a side far from the inner air spring chamber. The inward-facing seal member has a lip which is slidably in contact with an inner periphery of the guide cylinder, with this lip being oriented toward the inner air spring chamber. The outward-facing seal member has a lip which is slidably in contact with the inner periphery of the guide cylinder, with this lip being oriented in an opposite direction to the inner air spring chamber.

The invention provides a connecting piece embedding device and method. The connecting piece embedding device comprises a base, a feeding unit, a pressing unit, a slide platform and a fixing press block, wherein the slide platform is arranged on the base, and the fixing press block is arranged above the slide platform. By means of the technical scheme, a pushing device provided by the invention has the benefits as follows: firstly, two push plates are provided and mainly used for clamping a connecting piece, and the dislocation problem of connecting piece turning and upwarping and the like are thoroughly solved; secondly, the push plates can be freely replaced according to the thickness of the connecting piece, and the application range is wider; and thirdly, empty pressing and mistaken pressing under the shortage condition are effectively prevented by means of concave and convex plates.

A tire pressure sensor including a body, a sealing member and a circuit and signal transmission apparatus is provided. The body includes a first casing, a first hole, a receiving portion and a second casing. The receiving portion connects with the first hole passing through the first casing. The sealing member includes a second hole that is set through the rubber component of and communicates with the first hole. The sealing member is located in the receiving portion. The circuit and signal transmission apparatus includes a circuit apparatus and a hole. The hole positioned on the surface of the circuit apparatus communicates with the first hole and second hole to form an air seal channel. The air pressure of the tire is injected through the air seal channel into the hole, and the tire pressure sensor can detect the pressure and temperature of the air of the tire.

The invention relates to an oil-guiding device for an oil pressure brake, which comprises a brake handle, an oil-guiding piece and a cover plate, wherein an oil storage base is arranged on the brake handle; an oil chamber is arranged in the oil storage base; an oil-guiding base is arranged at the bottom of the oil chamber; an oil inlet and an oil outlet are formed on the oil-guiding base; the oil-guiding piece is combined with the oil-guiding base; an oil pipe opposite to the oil outlet and an oil hole opposite to the oil inlet are arranged on the oil-guiding piece; an end part of the oil pipe faces to a position of a joint of the brake handle and a brake bar; and the cover plate is jointed outside the oil storage base and is used for sealing the oil chamber. When the brake handle is in bias arrangement relative to a bicycle handle, oil materials in the oil chamber are accumulated at one end of the oil chamber close to the brake bar under the action of gravity, the oil materials on the end part of the oil chamber are absorbed by the oil pipe and are output from the oil outlet for braking, and the recycled oil materials are received by the oil inlet so as to enter into the oil chamber, thereby avoiding causing phenomena of air bubbles and air compression and keeping normal running of the brake.

A toilet plunger structure is disclosed. It comprises a shell having a handle, a trigger pivotally connected to the handle and having a push part, an accommodating slot corresponding to the push part for accommodating a gas container and a positioning slot; a smasher having a positioning seat accommodated in the positioning slot of the shell and having a positioning hole and a firing pin disposed in the positioning hole; a gas pipe provided with a connecting pipe having a connecting seat connected to the positioning seat for fixation, a protecting pipe sleeved on the connecting pipe and a connecting member connected to the protecting pipe; and a dredge connector having a connecting part for correspondingly connecting the connecting member, a plugging part disposed at a bottom of the connecting part and a though hole passing through the connecting part to the plugging part for receiving the connecting pipe.

The invention belongs to the technical field of petroleum processing and production equipment, and discloses a treatment device of petrochemical gas containing light hydrocarbon. The treatment devicecomprises a constant-temperature water tank, a gas inlet pipe, a one-way valve and a first power pump, wherein the constant-temperature water tank is sealed and an inner cavity body of the constant-temperature water tank is filled with water; the gas inlet pipe communicates with a light hydrocarbon source of the outside, and the gas inlet pipe is arranged on one side of the constant-temperature water tank in a bending manner; the one-way valve is arranged on an outlet of the gas inlet pipe; the first power pump comprises a piston pump, a driving rod and a floating plate; the outlet of the gasinlet pipe communicates with one side of a chamber body which is arranged above a piston of the piston pump; the piston pump is suspended in the constant-temperature water tank and is completely soaked in the water; the driving rod is fixedly arranged on the bottom face of the piston and can penetrate through a through hole which is formed in the bottom face of the pump body of the piston pump; asealing device is arranged at the through hole; and the floating plate is fixedly arranged at the bottom end of the driving rod. The treatment device has a simple structure, is saved in cost, and canfulfill the aim of resource re-utilization.

The invention discloses a carriage of a single rack soot blower. The carriage comprises a motor and a reduction box connected to the motor. A worm wheel and a worm for deceleration are arranged in thereduction box, the lower part of a side end, facing the motor, of the reduction box is of a cylindrical structure for accommodating the worm wheel, the bottom of the cylindrical structure is lower than the bottom of the other side end of the reduction box, a ventilating device for outward exhausting is arranged on the top of the reduction box, an oil filling port is formed in the front surface ofthe reduction box, an oil level gauge connected to the oil filling port is arranged at the oil filling port, and an oil penetration hole for enabling oil to penetrate between the worm wheel and the worm is formed in the oil level gauge. Wear of the worm wheel and the worm in the reduction box can be reduced effectively by means of improvement of the carriage.

A tire valve system allowing a user to virtually check a vehicle's tire pressure and tire temperature remotely.

The invention discloses a steel ball press-in machine for a universal wheel of luggage. The steel ball press-in machine structurally comprises a press-in support rod, a press-in device, an air pump motor, a pressurizing air pump, a funnel assembling rod, a steel ball funnel, a rotating ring, a steel ball connecting pipe, a universal wheel placing table, a placing supporting rod and a main machinetable; the main machine table is a cuboid, the press-in support rod is vertically welded to the middle part of the left side of the top end of the main machine table, the press-in support rod is a cuboid, and the top end of the press-in support rod is vertically welded to the middle part of the left side of the bottom end of the press-in device; the placing supporting rod is a cylinder, the bottomend of the placing supporting rod is vertically connected with the main machine table in a locking mode, the universal wheel placing table is vertically welded at the top end of the placing supporting rod, and the universal wheel placing table is located at the right side of the pressing-in support rod. According to the steel ball press-in machine, when a user uses the machine, automatic fallingpositioning of the machine and press-in of balls can be realized only by controlling pressure pumping and charging of the machine, through an ejector rod and springs in a positioning plate, a pressingrod can be unlocked to press the steel balls only when the pressing rod is positioned to the point so that the steel balls can be prevented from being pressed and falling down in advance, and therefore empty pressing can be prevented, safety of the machine is guaranteed, and the machine is convenient to use.

The invention belongs to the technical field of production of a combined potted flower press-packing paper bar, in particular to a combined firework press-packing paper bar mechanism. It includes a paper blanking mechanism, a paper blanking mechanism and a paper blanking cavity, wherein the paper blanking cavity is set above the combined fireworks single tube for accommodating the paper; the paper blanking mechanism is set on Above the paper blanking die cavity, it is used to punch the yellow cardboard placed above the paper blanking die cavity into paper boards; the paper board press-fitting mechanism is used to press-pack the paper boards in the paper board blanking die cavity Put it into the combination fireworks single tube. The combined fireworks paper packing mechanism of the present invention can be applied to the combined fireworks formed by compression molding, and is also suitable for the combined fireworks paper packing work formed by a single tube pot with variable cavity spacing deviation. The guide head in the center hole at the front end of the paper bar press-fitting mechanism can prevent the paper bar from detaching from the pressure head during the press-fitting process, avoiding the phenomenon that the paper bar is pressed empty or biased.

The invention discloses a machine used for punching a ceramic dielectric chip of a high-pressure ceramic capacitor and capable of preventing die damage. The punching machine comprises an upper punch, a lower punch and a spacing lug boss. A die cavity is formed in the lower punch, and is filled with ceramic powders. After the height of the upper punch is reduced, the upper punch is matched with the lower punch, and the ceramic powders in the die cavity are punched to form the ceramic dielectric chip. A height sensor and a pressure sensor are arranged at the bottom of the upper punch. The height sensor can be used for detecting the ceramic powder filling height in the die cavity. The pressure sensor can be used for detecting the punching force between the upper punch and the ceramic powders or the lower punch. A feeding platform is located right above a frame. The other end of a feeding pipe is connected with a feeding vehicle located on the feeding platform. A second weighing sensor and a warning device are arranged on the feeding vehicle. After the structure is adopted, the punching force of the die can be monitored in time, and starved feeding and excessive punching of the die can be prevented, so that the die is prevented from being damaged, and the service life of the die is prolonged.

A warning control unit of this tire air pressure monitoring device starts giving a driver a tire air pressure fall warning when a tire air pressure is equal to or lower than a first threshold. The warning control unit stops the warning when the tire air pressure becomes equal to or higher than a second threshold that is set based on a tire temperature in a case where the warning is being given. The warning control unit uses a constant value unrelated to a detected tire temperature as the first threshold, and uses a value obtained by adding a variable value, which is obtained by adding a positive constant value to a value that increases as a temperature difference obtained by subtracting a tire temperature at the time of the issuance of the warning from a current tire temperature increases, to the first threshold, as the second threshold.

The invention relates to the technical field of drainage equipment, and discloses an automatic drainer which is characterized in that the bottom of a movable cavity is fixedly sleeved with a fixed column, a movable block is movably mounted in the middle of the movable cavity, and rotating rods with one ends sleeved with the movable block through connecting rods are symmetrically and movably mounted on the inner walls of the two sides of a floater support; the bottom of the movable block is fixedly connected with a limiting block movably connected with the interior of the sleeve hole in a sleeved mode, the movable block is in a frame shape, a fixed frame is fixedly installed at the position, located in the middle of the movable block, of the interior of the movable cavity, and the end, located in the movable cavity, of the rotating rod is fixedly connected with a sliding rod through a connecting rod; a rotating rod floating ball is arranged in the water cup to be matched with a movable block for control, and a fixed column and a limiting block structure are arranged to be matched with each other to control drainage, so that the air tightness and the automatic drainage effect of the automatic drainer are improved.

The application discloses a forced demoulding mechanism with an on-machine quick release structure, including a forming template, an undercut forming block, a connecting rod, a drive assembly, an on-machine quick-release insert and a gas-assisted demoulding component; the forming template A connecting channel is opened longitudinally on the top, and a quick-release chamber is opened on the upper end of the forming template; the inverted forming block is detachably arranged on the upper end of the connecting rod, and the connecting rod is movable longitudinally on the In the connecting channel; the on-machine quick-release insert is detachably fitted in the quick-release chamber; the on-machine quick-release insert is longitudinally provided with a guide hole, and the guide hole communicates with the connecting channel , the underturned forming block passes through and fits tightly in the guide hole; the underturned forming block is provided with a micro-air hole, and the connecting rod is provided with an air channel, and the micro-air hole communicates with the air road. It has the advantages of smooth demoulding and high molding quality.