2702 results about "Injection device" patented technology

The invention discloses a gas injection device and horizontal flow vapor deposition equipment. The gas injection device comprises a top plate; the supporting sleeve body is arranged at the bottom of the top plate, and partial side wall is exposed; the top heat uniformizing mechanism surrounds the exposed side wall of the supporting sleeve body and is located on the side where the bottom of the top plate is located. The bottom of the first rotary sealing assembly is arranged at the top of the top plate in a dynamic sealing mode, and the first rotary sealing assembly is connected with the supporting sleeve body so as to drive the top heat uniformizing mechanism to rotate; the bottom of the second rotary sealing assembly is arranged at the top of the first rotary sealing assembly; and the gas inlet device penetrates through the supporting sleeve body and the first rotary sealing assembly, is arranged on the second rotary sealing assembly, is used for providing process gas into the process chamber and rotates relative to the supporting sleeve body under the driving of the second rotary sealing assembly, and is beneficial to the temperature uniformity and gas concentration uniformity of the surface of the substrate.

An injection nozzle attachment member for attaching an injection nozzle to a tip end of a heating cylinder, the injection nozzle including a body portion and a flange portion, the injection nozzle attachment member including a male thread formed on an outer peripheral surface of a rear end portion and a flange pressing portion configured to press the flange portion against the heating cylinder. The injection nozzle attachment member has a through hole at an axial center for receiving the body portion. The injection nozzle attachment member is configured such that in a case where the through hole receives the body portion inserted and the male thread is screwed into a female thread formed at a tip end of the heating cylinder for attachment to the heating cylinder, the flange pressing portion presses the flange portion for the attachment of the injection nozzle.

An injection molding machine according to the present embodiment includes an injecting device and a controlling unit, the injection device being configured to inject a material into molds, the controlling unit being configured to control the injecting device and control, based on a past speed setting of an injection speed set in past and a past speed detection result in a molding cycle performed in advance, an injection speed in an injecting process through which the injecting device injects the material into the molds, the past speed detection result being detected in past by a speed sensor configured to detect the injection speed.

The invention relates to the technical field of die casting, in particular to a feeding and injection device of a die casting machine. Comprising a charging barrel, a punch, an injection rod, an injection oil cylinder, a charging barrel sealing plate, a liquid inlet pipe and a driving part, the charging barrel is arranged in the fixed plate, the injection oil cylinder is arranged below the fixed plate, a punch is arranged in the charging barrel, a sealing plate is arranged on the side edge of the charging barrel, a guide structure is arranged on the sealing plate and matched with the charging barrel, a driving component is arranged on the bottom side of the sealing plate and fixed to the fixed plate, and the sealing plate moves under the action of the driving component. A charging barrel opening in the side surface of the charging barrel is opened and closed. When the sealing plate is in an open state, molten metal in the liquid inlet pipe begins to enter the charging barrel through the opening, the sealing plate closes the side opening of the charging barrel, the punch presses the molten metal into a mold cavity under the action of the injection oil cylinder, and a die-casting product is obtained after cooling forming. By adopting the opening and closing mode of the sealing plate, the time or the cooling degree of molten metal in the charging barrel is reduced, the feeding precision and efficiency are improved, and the injection period is shortened.

The invention relates to the technical field of plastic processing, in particular to an injection device of a plastic injection molding machine. The injection mold comprises a movable mold body and a fixed mold body, a cavity is formed between the movable mold body and the fixed mold body after mold closing, two air outlet grooves are symmetrically formed in the fixed mold body, and air outlet holes communicating with the forming cavity are formed in the inner walls of the two air outlet grooves; and the injection molding assembly comprises an injection barrel, a stirring cavity is formed in the injection barrel, a stirring shaft rod is arranged in the stirring cavity, and a plurality of electric heating rings are fixedly installed on the outer wall of the injection barrel. After a threaded section of a rotating short shaft is completely meshed with a meshing square sleeve, the moving meshing square sleeve compresses and pushes the rotating short shaft, a telescopic frame, an ejector rod, a plug and the ejector rod to move together, the ejector rod is in sliding connection with the inner wall of an air outlet hole, plastic blocked at the air outlet hole is ejected away, and the air outlet hole is sealed. Therefore, air in the forming cavity can effectively circulate outwards.

The invention discloses a binder spraying additive manufacturing device based on a selective powder laying mode. Belongs to the technical field of additive manufacturing. The device comprises a shell, a binder spraying device, a powder laying device, a lifting platform and other equipment. Wherein the binder spraying device comprises a plurality of binder storage bins, binder nozzles and near infrared lamps, and the binder nozzles and the near infrared lamps correspond to the binder storage bins; the powder spreading device comprises a feeding port, a powder spreading roller arranged below the feeding port, scrapers arranged on the two sides of the powder spreading roller, a powder suction device and a powder discharging device, wherein the powder suction device and the powder discharging device are arranged in the powder spreading roller. According to the binder spraying additive manufacturing equipment capable of selectively laying powder, two different powder materials can be accurately laid in the same flat layer, the two or more powder materials are bonded together, and the binder spraying additive manufacturing equipment is remarkably helpful to the machinery industry and the material industry.

The invention provides a portable smoke injection device. The portable smoke injection device comprises a main machine body, a control circuit board, an ignition module and a gas conveying module, wherein the ignition module is used for igniting a to-be-combusted object; the gas conveying module is used for outputting smoke out of the main machine body; a smoke outlet for outputting smoke is formed in one end of the main machine body; the air inlet is formed in the main machine body; the combustion chamber is arranged on the inner side of the main machine body and is used for placing an object to be combusted; the smoke outlet is formed in the outer side of the combustion chamber; the ignition module is close to or extends into the inner side of the combustion chamber and is used for igniting an object to be combusted; the control button or the control panel is arranged on the outer side of the main machine body and used for controlling operation of the ignition module and the gas conveying module; according to the equipment, combustible materials are efficiently ignited through electric arc high-voltage ignition and other related technologies, smoke is diffused through the fan and enters the wine glass, and therefore the unique smoked flavor is given to drinks.

The invention discloses a variable-damping tilting pad bearing, and relates to the technical field of sliding bearings. Comprising an upper half bearing shell, a lower half bearing shell, spherical supports, oil injection devices, tilting pads and bearing end covers, the upper half bearing shell and the lower half bearing shell form an annular bearing shell, the tilting pads are arranged on the inner side of the annular bearing shell and distributed at equal intervals in the circumferential direction, and the spherical supports are installed between the pad backs of the tilting pads and the annular bearing shell. The oil spraying devices are arranged between the adjacent tilting pads, the bearing end covers are installed on the two axial sides of the annular bearing shell, and through drainage holes are formed in the spherical supports and the tilting pads. Lubricating oil sprayed into the tile surfaces of the tilting tiles from an oil spraying device forms a high-pressure power oil film on the tile surfaces, part of the high-pressure lubricating oil enters the space between the spherical support and the annular bearing shell through the through drainage holes, high-pressure radial jacking force is formed, the spherical support is jacked up, and a static-pressure oil film is formed between the spherical support and the annular bearing shell. And the supporting damping of the tilting pad is improved.

An injection molding machine includes an injection device including at least first and second injection units, and one mold clamping device. A molding material is injected into a first cavity space by the first injection unit, and a molding material is injected into a second cavity space by the second injection unit. The injection molding machine further includes a control device controlling the injection device and the mold clamping device, and a storage device storing a set time in advance. The control device starts injection of the second injection unit after elapse of the set time from a predetermined time point. The predetermined time point is a time point at which the first injection unit starts injection or an earlier time point. The set time is a delay time for delaying start of injection of the second injection unit from start of injection of the first injection unit.

The invention provides special-shaped copper pipe machining equipment for a copper-aluminum composite bar and a machining method of the special-shaped copper pipe machining equipment, and relates to the technical field of copper pipe rolling machining. The special-shaped copper pipe machining equipment for the copper-aluminum composite bar comprises a machine tool, and a rolling device, a driving device, a flame jetting device and a straightening device are arranged on the upper surface of the machine tool. According to the special-shaped copper pipe processing equipment for the copper-aluminum composite bar, the fire spraying assembly is arranged in the copper pipe for continuous heating to prevent temperature loss, and the lining assembly is matched to abut against the heated inner wall, so that the problem that uncontrollable pits, protrusions and falling metal impurities are generated on the inner wall in the rolling process due to the fact that the inner wall of the copper pipe is lack of supporting is solved; and the problem of slipping or rigid fracture in the compression process due to temperature loss when the steel sheet enters a medium-temperature brittle zone is prevented.

The invention relates to a gas injection device of a foaming injection molding machine, and belongs to the technical field of injection molding machines. The gas injection device comprises a gas source; a pressure reducing valve; an air inlet one-way valve; injecting air cylinders; a gas injection piston; the connecting rod mechanism is used for connecting the gas injection piston and the injection screw rod; the gas injection head is communicated with the gas storage chamber and the injection charging barrel; the gas injection one-way valve is located between the gas injection head and the gas injection cylinder, and gas in the gas storage chamber enters the injection charging barrel in a one-way mode through the gas injection one-way valve; and when the injection screw retreats in a pre-plasticized mode, the gas injection piston is driven by the connecting rod mechanism to slide in the gas injection cylinder, the volume of the gas storage chamber is compressed, after the gas pressure rises to exceed the melt pressure, the gas injection head is opened, and inert gas enters the injection charging barrel through the gas injection head. The gas injection system is simplified, the gas injection flow and pre-plasticizing of the injection screw are synchronously carried out, and the manufacturing cost of equipment is reduced.

Provided is an injection device for injecting a substance, comprising a case receiving a barrel containing the substance to be injected and comprising a stopper movable inside the barrel, a plunger unit comprising a triggering portion, the plunger unit being coupled to the stopper and movable with regard to the case from an initial, proximal position to a final, distal position to inject the substance when the barrel is provided into the case, an end-of-dose indicator movable from a hidden position to a visible position in which at least one portion of the end-of-dose indicator is visible to a user, hiding means for locking the end-of-dose indicator in the hidden position and configured to be unlocked by the triggering portion of the plunger unit when the plunger unit reaches an indicator position.

A system and method for welding thermoplastic components by positioning and moving a heated plate between the components to melt their respective faying surfaces, and as the plate moves, pressing the components together so that the melted faying surfaces bond together as they cool and re-solidify, thereby creating a composite structure. The plate has a heated portion which is positioned between and heated to melt a portion of the first and second faying surfaces. A manipulator mechanism moves the plate along an interface from between the portion to between a series of subsequent portions of the first and second faying surfaces, thereby welding the thermoplastic components along the entire interface to create the composite structure. An injection device may also move behind the plate and reciprocally inject a polymer between the first and second faying surfaces to provide toughness and crack arresting properties.

The invention discloses a combustor and gas equipment, and relates to the technical field of gas equipment. Wherein the burner comprises a fire grate and an injection device, and the fire grate is provided with an air inlet; the injection device is installed at an air inlet of the fire grate and provided with an injection channel and a fuel gas channel arranged outside the injection channel, the injection channel is provided with an air inlet end, an air outlet end and a fuel gas introduction port, the air inlet end of the injection channel is used for inputting air, the fuel gas introduction port is communicated with the fuel gas channel, the air outlet end of the injection channel is communicated with the air inlet, and the fuel gas introduction port is communicated with the fuel gas channel. The gas-air mixer is used for conveying gas-air mixture into the fire grate. According to the technical scheme, fuel gas and air can be mixed more sufficiently, sufficient combustion can be achieved, and emission of nitric oxide is reduced.

The invention belongs to the technical field of machining equipment, and particularly relates to a machining and manufacturing cutting fluid spraying device which comprises a spraying device body, the spraying device body comprises a frame body, a machining head is arranged in a mounting sleeve, and an annular circumferential rotating assembly is arranged on the outer side of a supporting frame. The annular circumferential rotating assembly comprises an annular frame, a rotating adjusting assembly is arranged on the outer side of the annular frame, a spraying assembly is arranged on a rotating part of the rotating adjusting assembly, and a limiting block facilitating opening and closing of the spraying assembly is arranged on the portion, corresponding to the spraying assembly, of the annular frame; a linkage assembly matched with the limiting block is arranged on one side of the spraying assembly. The device is reasonable in design, simple in structure and convenient to machine, the spraying direction and the spraying range can be adjusted in a self-adaptive mode according to different use requirements, the spraying accuracy is ensured, the use functionality of the device is improved, the automation degree of the device is improved, the working process is guaranteed, and the use requirements are met.

The utility model discloses an injection machine with intelligent temperature control and precise positioning functions. The injection machine comprises a plasticizing injection system, a mold locking system, a driving system and a heating and cooling system, the plasticizing injection system comprises a plasticizing device and an injection device; the plasticizing device comprises a plasticizing charging barrel and a sleeved variable-pitch plasticizing screw rod mounted in the plasticizing charging barrel; the injection device comprises a syringe, a multi-injection-hole upper hot plate and a multi-injection-hole lower hot plate; the mold locking system comprises an electric control sliding positioning device and a belt positioning moving plate; the driving system comprises a hydraulic device driven by hydraulic oil in an oil path pipeline; and the heating and cooling system comprises a cooling system, a cooling pipeline and an electric control screw rod temperature control device.

The invention provides a popcorn sole forming machine facilitating mold forming and discharging, and relates to the technical field of shoe material production equipment. The popcorn sole forming machine facilitating mold forming and discharging comprises a machine table, a shoe mold used for forming a sole, a hydraulic device used for driving the shoe mold to be closed and separated, a compressed air control device, a feeding device, a water vapor control device, a cooling water control device and a controller. The oil spraying device is arranged in the machine table, before forming, the second air cylinder drives the atomization spray head to move above the forming cavity at a constant speed, the micro flow pump extracts the release agent, then the release agent is sprayed out through the atomization spray head under pumping pressure to form uniform mist, and the release agent can form a uniform film shape on the surface of the forming cavity; the oil spraying device is driven by the first air cylinder to be stored in the rectangular opening during production, the upper surface of the movable plate is flush with the upper wall of the machine table, and production operation is not affected.

The invention discloses an adhesive dispensing device for SMT machining, and relates to the technical field of SMT machining, the adhesive dispensing device comprises a shell and an adhesive injection assembly, a moving assembly is arranged on the upper portion of the shell, a bottom plate is arranged below the moving assembly, and the adhesive injection assembly is arranged on one side of the bottom plate; the glue injection assembly comprises limiting rods, limiting cylinders, a base plate, a base, a mounting groove, a rotating groove, a transmission wheel, a magnetic ring, a driving wheel, a stirring motor, a clamping cavity, a clamping spring and a clamping block, one side of the bottom plate is symmetrically connected with the limiting rods, the limiting rods are sleeved with the limiting cylinders, one sides of the limiting cylinders are connected with the base plate, and the other sides of the limiting cylinders are connected with the base. A mounting groove is formed in the middle of the base. When the glue injection device is used, glue liquid can be continuously stirred, blockage caused by standing condensation of the glue liquid is avoided, during glue injection, the glue liquid can be pumped back, bubbles in the glue liquid can be removed, glue liquid leakage is avoided, and the glue barrel can be conveniently replaced after the glue liquid is dripped off.

The invention discloses an experimental system and method for accelerating and promoting a gas-liquid-solid three-phase reaction in a multi-stage manner, and relates to the technical field of reaction equipment and carbon emission reduction. The experiment system comprises: a reaction kettle provided with a visual window and an atomization device mounting groove; the floating type piezoelectric ceramic atomization device is embedded in the atomization device mounting groove; the gas injection device comprises a gas hole distribution pipe and a gas injection pump connected with the gas hole distribution pipe; uniformly distributed micropores are formed in the pore distribution pipe; the magnetic stirring device comprises a magnetic driving base, a rotating speed controller and a magnetic stirrer arranged in the reaction kettle; the magnetic stirrer is arranged above the air hole distribution pipe; the bracket net is arranged on one side, deviating from the air hole distribution pipe, of the magnetic stirrer; and the temperature control device comprises a constant-temperature bath and a temperature controller for controlling the temperature of the constant-temperature bath. The experimental system is compact in structural design, modularized, simple and convenient to operate, capable of efficiently accelerating the gas-liquid-solid three-phase reaction and suitable for various experimental studies.

The invention relates to the technical field of civil engineering construction, in particular to a civil engineering construction secondary structure bar planting construction suit and a construction method.The construction suit comprises a drilling device which comprises an electric drilling machine and a drill bit and is used for drilling bar planting holes in preset positions of a wall; the hole cleaning device is mounted at the hole opening of the steel bar planting hole and is used for cleaning broken sand and dust in the steel bar planting hole; the glue injection device is used for injecting glue into the steel bar planting holes; the construction method comprises the steps that a dust collector is started in the drilling operation process, and chippings and dust generated in the drilling process are sucked into the dust collector; after drilling is completed, the brush head is replaced on an electric drilling machine, the brush head is repeatedly pushed and pulled through the electric drilling machine to clean the embedded steel bar holes, the dust collector continuously works till the brush head completes cleaning of the embedded steel bar holes, and then glue is injected into the embedded steel bars; according to the scheme, impurities in the embedded steel bar hole can be deeply cleaned, and the anchoring force of the embedded steel bar and the hole is protected.

The invention belongs to the technical field of shield tunneling machines, and particularly relates to an integral attitude control and adjustment system and method for green support shield equipment, and the method comprises the steps: collecting attitude parameters, stratum parameters and equipment state data of a shield tunneling machine, and constructing a weighted directed graph through a mutual information algorithm; on the basis of the output parameters of the weighted directed graph, a control signal is generated, and the output force of the differential multi-cylinder linkage mechanism is adjusted through the control signal; based on the control signal, a synchronous grouting regulation and control unit and a regenerated material injection device mechanically connected with the synchronous grouting regulation and control unit are controlled, and the regenerated material injection device is driven by an air cylinder linkage mechanism; utilizing a neural network model integrated by the remote intelligent regulation and control center to predict stratum change and correct a control strategy; and a closed-loop pressure loop is formed between the hydraulic output pipeline of the differential multi-cylinder linkage mechanism and the shield tunneling machine thrust oil cylinder group. According to the invention, the precision, the efficiency and the environmental protection property of shield tunneling can be improved, and the method is particularly applied to complex stratum conditions.

The invention relates to the field of dedusting ash injection, in particular to a laterite-nickel ore dedusting ash injection device and process method.The laterite-nickel ore dedusting ash injection device comprises an injection cylinder and a mixing cylinder, a blanking cylinder is installed between the injection cylinder and the mixing cylinder, the top of the injection cylinder and the top of the mixing cylinder are both connected with feeding pipes, and the top of the mixing cylinder is connected with a raw material pipe; a plurality of blowing vortex mechanisms which are evenly distributed in the circumferential direction are installed on the inner wall of the blowing barrel, a blowing material barrel is installed at the bottom of the blowing barrel, a blowing pipe is connected to the outer side of the blowing material barrel, the blowing pipe is connected with a blowing nozzle, the blowing vortex mechanisms are connected with a blowing air supply assembly, and the blowing air supply assembly is connected with the blowing material barrel and the blowing pipe. A blowing anti-blocking mechanism is mounted in the blowing pipe, a mixing mechanism is mounted in the mixing cylinder, and a vortex auxiliary mechanism is mounted in the blowing cylinder. The blowing vortex mechanism can blow mixed materials, so that the mixed materials rotate in the blowing cylinder, the materials form continuously rotating vortexes, and the materials are prevented from being accumulated in the blowing cylinder.

The invention discloses a glue injection device for treating varicosity, and relates to the technical field of medical instruments for treating varicosity, the glue injection device comprises a handle shell and a piston type glue injection mechanism, the piston type glue injection mechanism is arranged in the handle shell, the glue injection device further comprises a gear shifting mechanism and an elastic locking mechanism, the gear shifting mechanism is used for driving the piston type glue injection mechanism to inject glue; and the elastic locking mechanism is used for locking the piston type glue injection mechanism. The main gear, the transmission gear and the rack are matched and integrated on the handle shell, an operator can conveniently hold the handle shell with one hand for single-hand operation, the main gear is shifted through hand movement, the glue injection speed is conveniently controlled, the rack drives the piston body in the glue containing piston barrel to move, and therefore glue injection is completed; and the other hand of the operator can conveniently carry out other related operations, so that the operation convenience and the operation efficiency are improved.

An injection device (2) of an injection molding machine (1) includes a heating cylinder (18) having a gas introduction port (30) and a screw (19), and a gas supply device (5) is connected to the gas introduction port (30). The gas supply device (5) includes a gas supply source (33) and a gas pressure regulating unit (34). The gas pressure regulating unit (34) regulates a gas pressure and supplies the gas when a gas from the gas supply source (33) is introduced into the gas introduction port (30). Specifically, the gas pressure is caused to change in a molding cycle and is increased to a high pressure in a metering process (61). That is, a pressure increasing period (71) in which the gas pressure increases at least partially overlaps with the metering process (61).

The utility model discloses a photomask box bonding glue injection device which comprises an injection pipe, a plate body and a shell, an electric control plate is arranged in the shell, a servo motor is arranged on the inner wall of the shell, the output end of the servo motor is connected with a lead screw, the lead screw is in threaded connection with a rod body, the end of the rod body is connected with a piston, and the piston is in sealed sliding connection with the injection pipe. The output end of the injection tube is in threaded connection with a needle, and a guide strip is arranged on the rod body. The servo motor is electrically connected to drive the lead screw to rotate, the lead screw is in threaded connection with the rod body, under the limitation of the guide strip and the guide opening, the piston is driven to move back, glue is sucked into the injection pipe, the servo motor rotates reversely, the piston is driven to move forwards, the glue is extruded out of the needle head, and after the piston is extruded to the bottom, the elastic piece is compressed. The device plays a role in protection, prevents the piston and the injection tube from being excessively extruded to cause breakage of the injection tube, improves safety, can be operated by a single hand, and is convenient for glue injection and plate sticking.

The invention discloses an injection machine with intelligent temperature control and precise positioning functions. The injection machine comprises a plasticizing injection system, a mold locking system, a driving system and a heating and cooling system, the plasticizing injection system comprises a plasticizing device and an injection device; the plasticizing device comprises a plasticizing charging barrel and a sleeved variable-pitch plasticizing screw rod mounted in the plasticizing charging barrel; the injection device comprises a syringe, a multi-injection-hole upper hot plate and a multi-injection-hole lower hot plate; the mold locking system comprises an electric control sliding positioning device and a belt positioning moving plate; the driving system comprises a hydraulic device driven by hydraulic oil in an oil path pipeline; and the heating and cooling system comprises a cooling system, a cooling pipeline and an electric control screw rod temperature control device. The invention also provides an injection method. The method has a wide application prospect.

The invention discloses glue injection equipment for anti-seepage construction of a building wall, and relates to the technical field of anti-seepage construction of walls, the glue injection equipment comprises a mounting plate, universal wheels and directional wheels are mounted on the upper side and the lower side of the rear end face of the mounting plate respectively, the universal wheels and the directional wheels are used for moving the glue injection equipment on the surface of the wall, and an operation handle is mounted on the front end face of the mounting plate; the grooving mechanism is mounted on the rear end face of the mounting plate, and the grooving mechanism is used for forming a V-shaped groove in the crack leakage position on the surface of the wall; the driving mechanism is mounted on the grooving mechanisms and used for driving the grooving mechanisms on the left side and the right side of the mounting plate to move alternately; through cooperative arrangement of the grooving mechanism and the glue injection mechanism, forming of a V-shaped groove and synchronous continuous glue injection treatment on the surface of the wall surface leakage gap can be achieved, tedious punching, glue injection pipe installation and multiple times of pipeline connection glue injection operation are not needed, and therefore the efficiency of glue injection construction of the wall surface leakage gap is improved.

The utility model relates to the technical field of injection mold replacement, in particular to a quick-replaceable double-color injection mold which comprises a mounting base, the bottom surface of the mounting base is fixed on the surface of an injection device main body, an air cylinder is arranged on the inner surface of the top of the injection device main body, and the power output end of the air cylinder of the injection device main body is fixed on the surface of an upper mold body. A mold core is arranged on the surface of the mounting base, a clamping hole is formed in the surface of the mold core, a threaded telescopic rod is clamped in the clamping hole, and the surface of the threaded telescopic rod penetrates through the threaded rod storage groove; the double-color injection mold capable of being rapidly replaced has the beneficial effects that the surface of the mold core is movably connected into the mold core mounting frame, the surface of a threaded telescopic rod penetrates through a threaded rod containing groove, and when the threaded telescopic rod is rotated, the length of the threaded telescopic rod is changed to be clamped into a clamping hole; and therefore, the mold core can be quickly disassembled and replaced from the mold core mounting frame, and the mold core can be replaced without the need of disassembling the bolt by a worker.

The invention discloses an underwater connector technology, and aims to provide an oil filling port device for an oil filling balance underwater connector and an oil filling process of the oil filling port device, and the technical scheme is characterized in that the oil filling port device comprises an oil filling hole, an oil sealing screw and an oil filling device which are arranged on a connector shell; the oil filling hole is of a composite structure and sequentially comprises an unthreaded hole part and an inner threaded hole part from the outer side to the inner side of the shell, the inner diameter of the unthreaded hole part is matched with the outer diameter of the oil sealing screw, radial sealing is achieved through an oil sealing ring, and the inner threaded hole part is matched with an outer thread of the oil sealing screw to achieve fastening connection. A plane is arranged outside the oil filling hole and perpendicular to the unthreaded hole part, and a dovetail groove structure is arranged on the outer side of the plane; the whole oil sealing screw is in a T shape, an external thread of the oil sealing screw is matched with an internal thread hole part of the oil filling hole, and an installation threaded hole used for being connected with an external thread connector at the front end of a center shaft of an oil injection device is formed in the end of the oil sealing screw. The underwater connector is suitable for the technical field of underwater connectors.

The invention relates to a micro-quantitative glue injection process which solves the technical problems that in the prior art, cost is high, cleaning is difficult, and a high-viscosity adhesive is not suitable. The invention designs a special micro-quantitative glue injection device which comprises a glue injection barrel and a glue injection push rod penetrating into the glue injection barrel, a glue filling exhaust hole is formed in the end part, close to one end connected with the glue injection push rod, of the glue injection barrel; the glue injection cylinder is made of transparent high polymer materials, and scales are arranged on the outer wall of the glue injection cylinder. The device is low in cost and high in adaptability, and cannot chemically react with common optical cement; and meanwhile, due to low cost, the device can be used as a disposable glue injection tool, then a glue injection process is designed, the problems of high cost and difficulty in cleaning are solved, the operation is convenient, and pollution-free glue injection of the adhesive is ensured.