60 results about "Core plug" patented technology

A lock core and key assembly includes a core body, a core plug having a core plug insert-receiving aperture, a core plug insert positioned in the core plug insert-receiving insert, and a key. The core plug insert has a taper and the key has a bow and a shank with a taper that aligns with the taper of the core plug insert.

The utility model discloses a quick assembly type plastic roll core plug which comprises a sealing plug body, the outer wall of the sealing plug body is fixedly connected with an outer sealing ring strip, and one end of the sealing plug body is provided with an adjusting mechanism in a positioning mode. According to the rapid assembly type plastic roll core plug, an operator can insert the sealing plug body into the interior needing to be plugged, then the outer sealing protection sleeve is used for wrapping one end of the exterior of a pipeline, and the inner anti-skid gasket is used for enhancing the external sealing performance and the anti-skid effect of the outer sealing protection sleeve; a limiting rotating block is manually rotated, and a control thread and a penetrating adjusting hole are mutually meshed, so that a rotating adjusting rod is controlled to move, the sealing plug main body is pushed to move, the sealing performance of the plug is enhanced, the sealing plug main body can move to the deep position of the interior needing to be sealed, the sealing plug main body is not prone to falling off, and the service life of the plug is prolonged. And the internal sealing performance is also enhanced through the outer sealing ring strip.

A heat pipe includes: an elongate tube defining a longitudinal axis; an annular wick positioned in the elongate tube; a wick plug positioned in the elongate tube and attached to an end of the annular wick, where the wick plug includes an annular body defining an opening; a thermal expansion modification device including: an annular plug attached to an end of the elongate tube; and an elongate stem extending from the annular plug and through the opening in the wick plug, where the elongate stem defines a protrusion extending radially relative to the longitudinal axis toward the elongate tube, and where the wick plug is positioned intermediate the protrusion and the annular plug; and an end cap attached to the annular plug.

The present invention relates to the technical field of air path switching valves, and in particular to a normally open switching valve, comprising a switching valve cylinder, an air inlet hole, an air outlet hole, a static valve and a dynamic valve that cooperate with each other are provided on the side wall of the switching valve cylinder, the static valve is arranged on one side of the cavity of the switching valve cylinder, and the dynamic valve is movably arranged on the other side of the cavity of the switching valve cylinder; the normally open switching valve of the present invention is provided with a static valve and a dynamic valve that cooperate with each other in the switching valve cylinder, the static valve is fixedly arranged, and the dynamic valve is movably arranged; an elastic valve core plug is provided on the side of the valve core push rod of the dynamic valve, which has good sealing performance, and when the dynamic valve is subjected to external force, the valve core push rod pushes the valve core plug to move, thereby sealing the air hole in the static valve, and cutting off the gas output path in the normally open switching valve, thereby solving the technical problems of poor sealing, short service life and poor reliability of traditional normally open switching valves.

This application relates to a fan-shaped three-core plug, belonging to the field of electrical equipment connection, and includes components such as a bottom cover, a mounting component, a first hardware component, a second hardware component, and a third hardware component. The bottom cover cooperates with the mounting component to clamp the first hardware component, and the mounting component cooperates with the top cover to clamp the second hardware component, achieving a stable plug structure. A first mounting groove is provided on the side of the bottom cover away from the mounting component for mounting the third hardware component. The fan-shaped three-core plug of this application has a reasonable design and a stable structure, which can ensure the safety and stability of the electrical connection.

The utility model provides a heatable steel belt adhesive layer stripping tool, and belongs to the technical field of steel belt adhesive layer stripping. Comprising a knife handle, a knife head and a heating core, a first groove used for being matched with the knife head in an inserted mode is formed in one end of the knife handle, the heating core is arranged in the knife handle, a second groove used for being matched with the heating core in an inserted mode is formed in one end of the knife head, and a connecting piece is arranged between the knife handle and the knife head. The heating core can heat the tool bit, and after a worker cuts the polyethylene layer strip by using the heated tool bit, resin can be melted, so that the stripping process is more convenient, and the effect of reducing the labor intensity of the worker is achieved.

The utility model belongs to filter technical field provides a kind of filtering device, including cylinder, filter core plug and the filter core being located in cylinder, and the both ends along the length direction of cylinder respectively have first port and second port, and filter core has inner cavity;The outer diameter of filter core plug is greater than the outer diameter of filter core and less than the inner diameter of cylinder, and one end of filter core plug is tightly pressed on one end in cylinder, and first port is communicated with inner cavity;The outer wall of filter core and the inner wall of cylinder form outer cavity, and outer cavity and inner cavity are communicated, and output channel communicated with outer cavity is provided in filter core plug;Connector is provided on filter core plug, and cylinder is provided with connecting part.The utility model communicates first port with inner cavity, and outer cavity is communicated with output channel, when medium flows reversely, medium can also pass through filter core and is filtered, and sundries in medium is intercepted, and sundries can be avoided to enter into the air-tightness detection equipment of external device.

The fusible core plug structure comprises an insulating shell, the insulating shell comprises a first insulating part and a second insulating part, the side edge of the first insulating part is hinged to the side edge of the second insulating part through a hinge, and a plurality of positioning holes are formed in the side face of the first insulating part. The side surface of the first insulating part is provided with a positioning hole, the side surface of the second insulating part is provided with a positioning column which is correspondingly clamped with the positioning hole, the first insulating part is provided with a first conductor and a second conductor, the first conductor and the second conductor are respectively provided with a plurality of clamping holes, the first insulating part is provided with a clamping column which is correspondingly matched with the clamping holes, and the second insulating part is provided with a fusible core. According to the utility model, a symmetrical structure is designed, and plugging can be carried out regardless of directions; and the fusible core can be automatically fused when the current is too large, so that the fusing function of the circuit is realized, and the circuit and equipment are protected from being damaged. The first insulating part and the second insulating part are connected through the hinge, left-right mutual matching is achieved in the mode that the positioning holes and the positioning columns are matched, and mounting and dismounting are convenient. According to the utility model, the fusible core is fixed by adopting the upper limiting rib, the lower limiting rib, the clamping hook and the limiting column, so that the fusible core is convenient to mount and dismount.

When the socket assembly is assembled, the socket assembly is self-locked for the first time, a terminal is inserted into a guide column for installation, then a socket sealing cover covers the top of a socket shell, at the moment, the socket shell and the socket sealing cover are preliminarily clamped, namely, a positioning column is preliminarily clamped with a guide groove, and a terminal head of the terminal slightly extends out of the outer side of the socket sealing cover; in this way, the terminal head of the terminal can be prevented from being bent due to stress in the transportation process. When the socket assembly and the plug assembly are plugged in each other, the socket assembly is self-locked for the second time, the plug sealing cover is stressed to sink under the action of external force during plugging, and the terminal head of the terminal slightly extends out of the outer side of the socket sealing cover at the beginning, so that the terminal head of the terminal gradually extends out of the through hole in the socket sealing cover in the sinking process; in the extending process, the terminal head of the terminal can be corrected by the through hole, so that the situation that the terminal head of the terminal is not bent at the extending part when the socket assembly is assembled so as to influence opposite insertion is avoided; through two times of self-locking, the situation that the terminal head of the terminal is bent during assembly, bent during transportation and failed plug-in is avoided.

The utility model relates to the technical field of power plug manufacturing, in particular to a three-core plug integrated support. Comprising a support body, and the support body is provided with a first installation channel, a second installation channel and a third installation channel; first hardware is arranged in the first mounting channel, second hardware is arranged in the second mounting channel, and third hardware is arranged in the third mounting channel; a first clamping piece is arranged at the position, close to a second installation channel opening, of the support body, a second clamping piece is arranged on the second hardware piece in an inwards-concave mode, and the first clamping piece and the second clamping piece are connected in a matched and clamped mode. A third clamping piece is arranged at the position, close to the third installation channel opening, of the support body, a fourth clamping piece is arranged on the third hardware piece in an inwards-concave mode, and the third clamping piece and the fourth clamping piece are connected in a matched and clamped mode. The hardware mounting structure has the effects of improving the mounting stability of the hardware and improving the production efficiency.

The utility model relates to the technical field of pile core plugging devices, and discloses a tubular pile core plugging device convenient to operate, which comprises a pile core, a plugging steel plate is arranged at the top end of the pile core, a plurality of welding points are arranged at the bottom end of the plugging steel plate, the plugging steel plate is welded with the pile core through the welding points, and the welding points are arranged at the bottom end of the plugging steel plate. The multiple welding points are arranged at the bottom of the pile core. The plugging steel plate and the pile core are welded through the welding points, when the core filling procedure needs to be conducted on the pile core, only the plugging steel plate needs to be opened, the pile hole processing time is greatly saved, the construction period is shortened, the plugging steel plate can be repeatedly used in subsequent projects after being used, cost is not increased, and therefore the purposes that later-period soil entering is avoided, and the construction quality is improved are achieved. And manual hole cleaning is not needed any more.

The application relates to a secondary valve seat assembly structure of a gas pressure reducing device. The secondary valve seat assembly structure of the gas pressure reducing device comprises a primary valve shell, a primary valve cavity is arranged in the primary valve shell, a primary valve core is arranged in the primary valve cavity; a secondary valve shell is detachably connected to the primary valve shell, and the primary valve shell and the secondary valve shell jointly form a secondary valve cavity, a secondary valve core is arranged in the secondary valve cavity; the secondary valve seat assembly structure further comprises a valve core plug-in seat which is a separate component, is detachably fixed on the primary valve shell, and can be disassembled from the secondary valve cavity; a through hole is arranged on the valve core plug-in seat, one end of the through hole close to the primary valve core faces the primary valve cavity, and the other end away from the primary valve core is used for guiding and plugging the corresponding end of the secondary valve core; a secondary valve seat is arranged in the through hole, and the secondary valve seat is used for adapting to the secondary valve core to realize opening degree adjustment when the secondary valve core moves in the axial direction. The above scheme can conveniently disassemble and maintain the secondary valve seat.

A lock core and key assembly includes a core body, a core plug having a core plug insert-receiving aperture, a core plug insert positioned in the core plug insert- receiving insert, and a key. The core plug insert has a taper and the key has a bow and a shank with a taper that aligns with the taper of the core plug insert

The present application discloses a dynamic simulation system for the performance of pre-fracture fracturing fluid in thick and hard critical layers, and relates to the technical field of fracturing fluid performance simulation. The present application includes a clamp body, one end of the clamp body is fixedly connected to a base plate, the other end of the outer wall of the clamp body is fixedly connected to a fixed plate, and a core plug is installed on one side of the fixed plate. The present application is provided with a clamping assembly, and when the core sample is placed inside the clamp body, a high-pressure air pump is used to pressurize the inside of the fixed block through the air inlet, so that the two clamps can be pushed to fit the core sample through the sealing plate, and the sealing air cushion can be inflated through the air pipe at the same time, so that the clamp body can firmly hold the core sample inside the clamp body, greatly improving the stability and sealing of the core sample inside the clamp body, so that the clamp body can adapt to the different sizes of different core samples, and improve the flexibility and breadth of the experiment.

The utility model belongs to the field of coiled material production equipment, and discloses a waterproof coiled material roll core inserting mechanism and a waterproof coiled material production system.The waterproof coiled material roll core inserting mechanism comprises an inserting station, a positioning assembly and a positioning driving device, the positioning assembly comprises a transmission rod and a pushing rod which is arranged at the end of the transmission rod and can elastically stretch out and draw back in the axial direction of the pushing rod. The positioning driving device is used for driving the transmission rod to move so that the pushing rod can be coaxially connected to the end of the roll core placed at the inserting station in a pressed mode. According to the waterproof roll core inserting mechanism and the waterproof roll production system, positioning operation of roll cores of different lengths can be compatible, accurate inserting of the roll cores of different lengths is achieved, and the roll cores are effectively prevented from being crushed.

A lock core and key assembly includes a core body, a core plug having a core plug insert-receiving aperture, a core plug insert positioned in the core plug insert-receiving insert, and a key. The core plug insert has a taper and the key has a bow and a shank with a taper that aligns with the taper of the core plug insert.

The utility model relates to the technical field of water-saving irrigation, in particular to an anti-loosening dropper roll core plug which comprises a cylindrical roll core and plug bodies installed at the two ends of the roll core, rectangular limiting holes are formed in the peripheral face of the upper end and the peripheral face of the lower end of the roll core, and the plug bodies are detachably installed on the roll core. A limiting edge is horizontally fixed to the edge of the outer side end of the plug, the edge of the inner side end of the plug is connected with a reducing opening, a connecting ring is fixed to the inner wall of the joint of the plug and the reducing opening, and a high-strength support is fixed in the connecting ring. A rectangular mounting hole is formed in the peripheral surface of the plug, a connecting plate is fixed upwards in the center of the bottom end of the rectangular mounting hole, the length and width of the connecting plate are smaller than those of the rectangular mounting hole, the top end of the rectangular mounting hole extends to the limiting edge in the horizontal direction, and a limiting block is fixed outwards at the free end of the connecting plate. The rectangular limiting hole of the roll core is used in cooperation with the plug limiting block, the limiting block needs to be pressed at the same time during disassembly to achieve rapid positioning and stable connection, and the disassembly and assembly efficiency is improved. The high-strength support in the plug provides strong support, deformation of the roll core is reduced, and the service life is prolonged.

The application provides a device for detecting the performance of core plugging material, which comprises a storage mechanism for accommodating the core plugging material, a test mechanism in communication with the storage mechanism, and a pressure sensor arranged on the storage mechanism and used for continuously monitoring the pressure change generated when the core plugging material is transported from the storage mechanism to the test mechanism, wherein the test mechanism comprises a cavity defined by a top plate and a side plate, one end of the cavity is in communication with the storage mechanism, the other end is formed with a core plugging material outlet, and a core is accommodated in the cavity in a circumferential sealing manner. By arranging the storage mechanism and the test mechanism in communication with the storage mechanism, the plugging material stored in the storage mechanism can be transported into the cavity of the test mechanism to contact the core, so that the plugging condition of the core is obtained. In this way, the technical problem of lacking actual formation test in the prior art for selecting the plugging material is solved.

The utility model relates to a four-core plug buckling device for a steel wire braided rubber sheath connector, which comprises a base, an outer sleeve is fixedly connected onto the base, a positioning seat is in threaded connection with the bottom of the outer sleeve and is mounted in an inverted T shape, a reset spring is sleeved on the positioning seat in a penetrating manner, and the upper end of the reset spring is propped against the bottom of a plug core. The plug core is inserted into the outer sleeve in a sliding manner, a copper outer joint is sleeved on the outer circular wall of the upper part of the plug core in a penetrating manner, a four-core plug is arranged on the inner wall of the copper outer joint in a penetrating manner, the four-core plug is inserted into the plug core, a pressing sleeve is pressed at the upper end of the four-core plug, and the lower end of the pressing sleeve is arranged in the copper outer joint in a penetrating manner. The device is simple in structure and reasonable in design, the tool is convenient and fast to use, the qualified rate of finished products of the connector four-core plug pressed into the copper outer joint reaches 100%, the product quality is greatly improved, the production efficiency is improved, and the product reworking operation is reduced.

A roll holding device for dispensing sheet from one or more rolls of sheet is provided. The roll holding device includes a core plug configured to be placed in a core of a sheet roll; an arm having a first end and a second end; and the core plug matching device is connected to the first end of the arm. The core-plug mating device includes an annular surface and a protrusion extending from the annular surface. A cavity is disposed in the protrusion and includes an annular rib. The protrusion includes an end surface disposed facing away from the annular surface. The protrusion has an outer wall with a first portion of the outer wall having a first slope that is less than a second slope of a second portion of the outer wall. A dispenser and method for dispensing a sheet are also disclosed.

The utility model provides an energy storage single-core plug, which comprises a plug and a rear cover connected with the plug, and the plug can be connected with a socket matched with the plug for use. The plug is provided with a connecting cavity and a locking cavity which are communicated with each other, and the connecting cavity is provided with female hardware used for being connected with the socket; a self-locking assembly used for locking the socket is arranged in the locking cavity. And the self-locking assembly comprises a locking part capable of protruding out of the connecting cavity and a key capable of locking the connecting plug. A mounting opening matched with the self-locking assembly is formed in the side face of the plug, and the self-locking assembly can be embedded into the locking cavity through the mounting opening; a locking hole is formed in the front side of the plug, the key is provided with a buckle matched with the locking hole, and the self-locking assembly can be connected with the plug in a self-locking mode through matching of the buckle and the locking hole. And a self-locking function is realized through the matching of the key and the locking hole. The design effectively prevents the plug and the socket from being accidentally separated under vibration or improper operation, and ensures the stability and safety of system operation.

The utility model provides a buckle locking type corrosion-resistant fluorine lining stop valve which comprises a fluorine lining valve body and a fluorine lining valve cover arranged on the fluorine lining valve body, an inlet cavity, a cavity connecting hole and an outlet cavity which are sequentially communicated are formed in the fluorine lining valve body, a self-closing valve element is arranged in the cavity connecting hole, the self-closing valve element comprises an outer core shell which is inserted into the cavity connecting hole and is internally provided with an inner core cavity, and the outer core shell is internally provided with an inner core cavity. A lower inlet hole and a lower guide hole are formed in the bottom face of the outer core shell, an upper outlet hole and an upper guide hole are formed in the top face of the outer core shell, a core column is arranged in the lower guide hole and the upper guide hole in a penetrating mode, a core plate in sliding fit with the inner core cavity is arranged on the core column, a middle through hole is formed in the core plate, and a core plug connected with the upper outlet hole in an inserted mode is arranged on the core plate. A self-closing spring is arranged between the core plate and the bottom wall of the inner core cavity, and a pressing column valve rod connected with the top of the core column is movably arranged on the fluorine lining valve cover in a penetrating mode. According to the buckle locking type corrosion-resistant fluorine lining stop valve, opening and closing of the self-closing valve element are controlled in the mode that the pressing column valve rod is pressed, practicability is improved, and use is convenient.

A roll retaining device for dispensing sheet material from one or more rolls of sheet material is provided. The roll retaining device includes a core plug configured to be placed in a core of a roll of sheet material, an arm having a first end and a second end; a core plug mating device coupled to the first end of the arm. The core plug mating device comprising an annular surface and protrusion extending from the annular surface. A cavity is disposed in the protrusion and includes an annular rib. The protrusion includes an end surface disposed away from the annular surface. The protrusion has an outer wall with a first portion of the outer wall having a first slope that is less than a second slope of a second portion of the outer wall. Dispensers and methods for dispensing sheet material are also disclosed.

The application belongs to the technical field of electro-hydraulic servo valves, and particularly discloses a flat plate sliding knife type hydraulic slide valve structure and an electro-hydraulic servo valve using the same, which comprises a first limiting block, a valve core plug, a flat plate sliding knife, a valve core and a second limiting block, wherein the first limiting block and the second limiting block respectively abut against two end faces of the valve core from two sides, the flat plate sliding knife is inserted above the valve core, the valve core plug is installed in a threaded hole of the end face of the valve core, the flat plate sliding knife slides on the valve core, and the control of the output flow of the slide valve is realized by changing the flow area of the oil inlet hole on the valve core. The servo valve adopts the flat plate sliding knife type structure to replace the traditional valve core valve sleeve structure, can effectively solve the problems of high cooperation size requirement and difficult machining of the slide valve, reduces the machining cost of the slide valve, and has the advantages of small driving force, high dynamic performance and strong anti-pollution ability.

The present invention discloses a series servo valve mechanism, which includes a driving motor, a first valve seat, a second valve seat, a first guide block, a first eccentric wheel, a second guide block, a second eccentric wheel, a first eccentric shaft, a second eccentric shaft, a first valve core seat, a second valve core seat, a first valve core, a second valve core, a first valve rod, a second valve rod, a first valve core plug and a second valve core plug. The first guide block can drive the first valve core plug to move through the first valve rod and cooperate with the first valve core to realize the opening and closing of the internal channel of the first valve core seat. The second guide block can drive the second valve core plug to move through the second valve rod and cooperate with the second valve core to realize the opening and closing of the internal channel of the second valve core seat. This series servo valve mechanism has the advantages of simple structure and low implementation cost. In practical applications, it can overcome the problem of signal delay of parallel servo valves, improve the coating efficiency and coating quality.

The present invention relates to a dual-core connector, which includes a first single-core plug and a second single-core plug. The first single-core plug and the second single-core plug are detachably connected by a first locking member. The beneficial effects of the present invention are as follows: Since the dual-core plugs in the dual-core connector are two independent single-core plugs before combination, it is not only beneficial to pass through a smaller space, but also the lengths of the respective connecting cables can be determined as needed, and the flexibility of a single cable is also better. Therefore, it is beneficial to the plugging operation of the plug when the connector is plugged and unplugged, and it is also very convenient to replace the plug, and the volume can also be reduced.

The application belongs to the field of ultra-high vacuum, and particularly relates to a new structure of a composite ion pump, which comprises an ion pump, a flange adapter welding part, an adapter cylinder, a connecting terminal, a lead wire, an insulating ceramic tube, a connecting column and a NEG pump core, the flange adapter welding part comprises a flange, an adapter and a two-core NEG electrode plug, the ion pump adopts an SKY20L pump, the pump port is replaced by the flange adapter welding part, the NEG pump core adopts a SaesD400 pump core, the two-core plug in the flange adapter welding part is pressed together with the lead wire through the connecting terminal, the insulating ceramic tube passes through the two lead wires and plays an insulating role, the connecting column connects the lead wire and the two plugs of the NEG pump core and is fixed through a countersunk screw, and the NEG electrode plug is combined on the ion pump port to integrate the NEG activation and the ion pump pumping functions. The application solves the problem that a small pumping speed ion pump is compact in space and inconvenient to increase pumping ports. The application has a simple structure and is convenient to install, and provides a new structure for optimization of the composite ion pump structure.

The application provides a self-suction carrying device, which comprises a connecting sleeve in the shape of a cap, a fixed plug core hung on the top wall of the connecting sleeve, a connecting seat extending to the inner cavity of the connecting sleeve, a suction disc arranged at the lower end of the connecting seat, a communicating cylinder arranged at the upper end of the connecting seat, the communicating cylinder being fixed and communicated with the suction disc through the connecting seat, the plug core being used for upward communication and downward one-way plugging of the communicating cylinder after vertical movement to the inner cavity of the communicating cylinder, a limiting assembly arranged between the connecting sleeve and the connecting seat, the limiting assembly being used for limiting the vertical distance between the connecting sleeve and the connecting seat to ensure that the plug core plugs or opens the communicating cylinder, and the workpiece is sucked up by using the self-suction function of the suction disc under the atmospheric pressure, without using a vacuum air source and an air path, and the structure is simple.

This utility model relates to the field of three-way valve technology, and more particularly to a three-way bullet valve, comprising a valve body and a valve core. The valve core includes a valve seat, a valve core plug, a valve stem, and a actuator. The valve seat has a first port, a second port, and a third port. The valve core plug is disposed within the valve seat and is used to control the opening or closing of the first port, the second port, and the third port. The valve stem is connected between the valve core plug and the actuator. The actuator drives the valve core plug to move along the valve seat via the valve stem. This utility model uses the actuator to push the valve stem to make linear motion, and the valve stem drives the valve core plug to slide within the valve seat, so that the first port is connected to the second port; the second port is connected to the third port; and the first port, the second port, and the third port are connected. By controlling the position of the valve core plug, it can realize the functions of one inlet and one outlet, one inlet and two outlets, or two inlets and one outlet merging. It also has advantages such as low flow resistance, fast switching, and reliable sealing, and is especially suitable for high-frequency, high-precision fluid control applications.