18results about How to "Implement switch" patented technology

The utility model discloses a mine auxiliary shaft safety door which comprises a machine cover, a bidirectional lead screw is arranged in an inner cavity of the machine cover, the two ends of the bidirectional lead screw are rotationally connected with the two ends of the machine cover, one end of the bidirectional lead screw is in transmission connection with a driving motor, the driving motor is fixedly installed on the machine cover, and the other end of the bidirectional lead screw is in transmission connection with the machine cover. Two sections of threads of the bidirectional lead screw are in transmission connection with sliding blocks, the two side walls of each sliding block are in sliding fit with the two inner side walls of the machine cover, a connecting rod is vertically installed at the bottom end of each sliding block, the bottom end of each connecting rod is fixedly connected with a door fence, and a lead screw oiling assembly is arranged on each sliding block; the mining auxiliary shaft safety door has the advantages that the two-way lead screw can drive the door fence to move horizontally, opening and closing of the mining auxiliary shaft safety door are achieved, normal and rapid passing of personnel and logistics is facilitated, meanwhile, continuous oiling protection can be conducted on the two-way lead screw through the lead screw oiling assembly, the rusting phenomenon is avoided, and normal operation of a mine is guaranteed.

The dot matrix pen comprises a shell, a support and a pen core, a groove is formed in the middle of the outer side of the support, a strip-shaped groove is formed in the bottom of the groove, a connecting piece is arranged in the groove in a sliding mode, an arc-shaped column head is arranged at one end of the connecting piece, and the arc-shaped column head protrudes out of the lower end face of the connecting piece; the sliding block slides in the strip-shaped groove; a switch is arranged on the inner side of the support in front of the strip-shaped groove, and the arc-shaped column head is used for closing the switch; the switch comprises a shell, two spaced connecting sheets, a V-shaped elastic sheet and a rotating tongue; one end of the connecting piece is connected with the refill, the other end of the connecting piece is connected with a connecting rod, a refill through groove and a connecting rod through groove are formed in the positions, located on the two sides of the groove, of the support respectively, the refill through groove and the connecting rod through groove are used for axial advancing of the refill and the connecting rod respectively, and the other end of the connecting rod is connected with a pressing mechanism; the dot matrix pen is simple in structure, the pen core of the dot matrix pen stretches out and draws back in a pressing mode, the problem that the pen cap is lost is solved, and meanwhile the dot matrix pen is opened and closed in the stretching-out and drawing-back process of the pen core so that the dot matrix pen can be started and closed.

The utility model discloses an atomizing nozzle capable of adjusting flow and relates to the technical field of atomizing nozzles, a water inlet channel penetrates through the upper end and the lower end of a base body, and a flow adjusting groove is formed in the top of the base body and surrounds the outside of the water inlet channel; the sealing gasket sleeves the upper part of the base body, and a flow adjusting hole is formed in the top of the sealing gasket and vertically communicates with the flow adjusting groove; the middle seat is sleeved outside the base and is in threaded connection with the base to wrap the sealing gasket, a closed ring table is arranged at the upper part of the middle seat, and the closed ring table is pressed on the sealing gasket to block the flow adjusting hole when the middle seat and the base are screwed tightly; water spraying holes are formed in the side wall of the water outlet channel; the surface cover is in threaded connection with the upper part of the middle seat; a water outlet communicated with the middle seat is formed in the top of the surface cover. The tightness degree of extrusion of the sealing gasket is adjusted through threaded connection between the base and the middle base, and flow adjustment is achieved; and the sealing gasket adopts a wrapping structure, is sleeved on the middle seat and is provided with a limiting structure, so that the installation is firm.

The utility model discloses an anti-backflow valve with a heating mechanism. The anti-backflow valve comprises a valve body, an input pipe is arranged at the bottom end of the valve body, a sealing plate is installed at the top end of the valve body, a threaded rod penetrates through the interior of the sealing plate, a rotating handle is installed at the top end of the threaded rod, and an output pipe is arranged on one side of the valve body. Through the arrangement of the glass fiber reinforced plastic heat preservation shell, the control box, the heat preservation cotton, the reserved groove, the electric heating wire and the metal sleeve, heating of the valve body and liquid is achieved, the temperature control knob at the top end of the control box can control the heating power of the electric heating wire, the output pipe is heated, the temperature of the liquid in the output pipe is indirectly increased, and the heat preservation effect is good. The glass fiber reinforced plastic heat preservation shell, the heat preservation cotton and the metal sleeve form multi-layer isolation, reduce outward temperature loss, prevent low temperature from reducing liquidity of liquid and ensure normal use in a low-temperature environment, meanwhile, the metal sleeve is arranged on the outer side of the reserved groove in a sleeving mode, the strength defect caused by the reserved groove is overcome, and therefore the valve has the heating function.

The utility model provides a dustproof device for a metal calendering material aluminum coil, which relates to the technical field of metal calendering material aluminum coils and comprises a placing box, universal wheels are arranged at the bottom of the placing box, snap rings are arranged on the inner walls of two sides of the placing box, a groove is arranged on one side of the placing box, and a box cover is arranged at the top of the placing box. A first cavity is formed in one side of the box cover, a sliding assembly is arranged in the first cavity, a buckle assembly is arranged on one side of the box cover, a plurality of fixing blocks are arranged on one side of the containing box, and the buckle assembly is connected with the fixing blocks. The device solves the problems that after an existing metal calendering material aluminum coil is placed for a long time, part of dust falls on the surface of the metal calendering material aluminum coil, the dust flies during transferring and using, and the construction environment is polluted.

The dot matrix pen comprises a shell, a support and a pen core, a groove is formed in the middle of the outer side of the support, a strip-shaped groove is formed in the bottom of the groove, a connecting piece is arranged in the groove, one end of the connecting piece is connected with the pen core, the other end of the connecting piece is connected with a connecting rod, and the other end of the connecting rod is connected with a cross-shaped sliding piece. One end of the cross-shaped sliding piece is connected with a compression spring in a sleeved mode, and a limiting mechanism is arranged at the position, located above the strip-shaped groove, of the inner side of the support. According to the dot matrix pen, the pen core stretches out and draws back in a pressing mode, the problem that the pen cap is lost is solved, and meanwhile the dot matrix pen is opened and closed in the stretching-out and drawing-back process of the pen core so that the dot matrix pen can be started and closed.

The present application provides a kind of pressure water faucet, including valve body, valve core, first sealing member and push rod, valve body includes water inlet pipe part and water outlet pipe part, the present application is by setting first stop portion in water inlet pipe part, and first sealing member is set on the stop portion of valve core, and drive portion is at least partially extended to water outlet pipe part by passing through first stop portion, and setting convex part on push rod drive drive portion, make valve core move between initial position and drainage position, realize the switch of faucet, when valve core is in initial position, because water source gives the force of stop portion to the direction of drive portion, so that stop portion always has the tendency of moving to the direction of first stop portion and tightly extrude first sealing member between stop portion and first stop portion, so that water faucet can withstand larger water pressure, and with the increase of water pressure, the force of stop portion tends to first stop portion will increase synchronously, so that first sealing member is more tightly sealed between stop portion and first stop portion.

The utility model belongs to the technical field of glue guns, and particularly relates to a valve rod control structure of an automatic glue gun, which comprises a valve body, a valve core, a valve rod and a control assembly, the upper air cylinder assembly comprises an upper air cylinder body, an upper piston is arranged in the upper air cylinder body and divides the interior of the upper air cylinder body into a first cavity and a second cavity, and a first air quick-inserting elbow is arranged on the side wall of the first cavity. The lower air cylinder assembly comprises a lower air cylinder body, a lower piston is arranged in the lower air cylinder body, the lower piston divides the interior of the lower air cylinder body into a third cavity and a fourth cavity, and the first cavity is communicated with the third cavity. A second air quick-insertion elbow communicated with the second cavity is arranged on the side wall of the lower cylinder body; the lower piston is connected with the upper piston and the valve rod. The first air quick-inserting elbow and the second air quick-inserting elbow are respectively controlled to convey air to the first cavity, the second cavity and the third cavity so as to adjust the stress of the upper piston and the lower piston, so that the movement of the valve core is controlled to automatically control the opening and closing of the glue gun.

The utility model provides a kind of air path switch and the heat exchange device of application, air path switch includes: installation cylinder, the first air outlet and second air outlet of the installation cylinder are sequentially provided with for air flow to blow out the installation cylinder along circumference, and wind wall that blocks air flow to blow out the installation cylinder;Rotary assembly is located in the installation cylinder, and rotates around the center axis of the installation cylinder, and the rotary assembly is equipped with shielding part;Driving assembly is used to drive the rotary assembly to rotate in the installation cylinder, to make the shielding part move between the first air outlet, the second air outlet, the wind wall.

The utility model relates to the field of displayers, and discloses a reinforced liquid crystal display screen which comprises a main body shell, an electric push rod is fixedly connected to the interior of the main body shell, the output end of the electric push rod is fixedly connected with a moving plate, the bottom of the moving plate is rotationally connected with a first rotating rod, and the outer wall of the first rotating rod is rotationally connected with a moving frame. A sliding block is fixedly connected to the outer wall of the movable frame, a sliding rail is slidably connected into the sliding block, a fixing plate is fixedly connected to the top of the sliding rail, a placing plate is fixedly connected to the top of the fixing plate, a screen is arranged at the top of the placing plate, a fixing tool is fixedly connected to the outer wall of the movable frame, and connecting plates are fixedly connected to the two sides of the movable frame. According to the display screen fixing device, through the electric push rod and the movable frame, the fixing tool can be driven to move in a reciprocating mode, a display screen is clamped and fixed, the problem that the display screen cannot be conveniently taken and placed for maintenance is solved, and the convenience of later work is improved.

The utility model belongs to the field of tool boxes, particularly relates to a tool box and a tool box set, and aims to solve the problems that the internal space of the conventional tool box is divided by partition plates, so that different tools can be separately stored, the spatial position of the conventional tool box is fixed and is difficult to adjust according to the sizes of the tools, and the tool box is inconvenient to use. According to the scheme, the storage box comprises a box body and a box cover rotationally arranged at the top of the box body, and a storage groove and a partition groove are formed in the box body; the placing disc is used for placing tools, the placing disc is arranged in the box cover, a plurality of elastic belts are arranged on the inner wall of the bottom of the placing disc, the tools small in size are fixed to the top of the placing disc through the elastic belts, and after the tool box is opened, the tools can be directly displayed through the moving assembly, so that the tools can be quickly found and used during use; and through the partition plate and the connecting rod which can be freely detached, adaptive adjustment can be conducted according to the size of the tool.

The utility model discloses an intelligent remote control door and window which comprises a door and window frame, driving mechanisms are arranged at the top end and the bottom end of the door and window frame, the driving mechanisms are connected with a first window sash, a connecting mechanism is arranged on the first window sash, and a second window sash is arranged on one side of the first window sash. Signals can be remotely received through the wireless receiver, the controller can control the driving motor to rotate, the first window sash can be driven to move, the door and window can be remotely opened and closed, intelligent opening and closing of the door and window are achieved, automatic-to-manual switching of opening and closing of the door and window is conveniently achieved by arranging the connecting mechanism, and the door and window can be conveniently opened and closed during power failure. And opening and closing of doors and windows can still be realized.

The utility model discloses an electric gate valve for a ventilating duct, which comprises a valve body, the valve body is of a rectangular frame structure enclosed by channel steel, side plates are respectively arranged on two sides of the lower half part of the valve body, and ventilating pipe joints are arranged on the side plates; a valve plate capable of moving up and down is arranged between the two ventilation pipe joints; two pieces of angle steel are transversely and symmetrically arranged in the middle of the valve body, a gap is formed between the two pieces of angle steel, and the valve plate penetrates in and out of the gap. Sealing baffles are symmetrically arranged on the upper surfaces of the two pieces of angle steel, the two sealing baffles are arranged on the two sides of the valve plate respectively, and a sealing piece is arranged between the two sealing baffles. According to the gate valve, paint slag can be prevented from being adhered to the valve plate of the gate valve, and the valve is prevented from being blocked and even stuck.

The utility model provides a gas cylinder valve for an air respirator with a meter, which comprises a valve body, a valve cavity arranged on the valve body, an air inlet hole and an air outlet hole respectively communicated with the valve cavity, a valve seat communicated with the air inlet hole arranged at the bottom of the valve cavity, a valve core capable of abutting against the valve seat arranged in the valve cavity, and a through hole communicated with the air inlet hole arranged on the valve core. The lower end of the pressure gauge connector is fixedly connected with the valve element, the upper end of the pressure gauge connector is connected with a pressure gauge, the pressure gauge connector is provided with an air guide hole communicated with the center penetrating hole, the outer side of the upper end of the pressure gauge connector is fixedly connected with a hand wheel, the top of the hand wheel is provided with a containing groove, and the pressure gauge is arranged in the containing groove. The pressure gauge connector is adopted to replace a valve rod to drive the valve element to move to achieve opening and closing of the valve, the through hole is formed in the valve element to be communicated with the air inlet hole, gas pressure in a bottle can be transmitted to the pressure gauge through the through hole and the air guide hole, the pressure gauge and the pressure gauge connector are both arranged in the hand wheel, the size of the valve body is reduced, and the weight of the whole valve is reduced.

The present invention relates to an adjustable wall-mounted faucet, comprising a pre-embedded body, a valve core installed in the pre-embedded body, a base connected to the pre-embedded body, a tooth sleeve connected to the valve core, a handle connected to the tooth sleeve, a buckle connecting the handle and the base, and a water outlet connected to the valve core; the outer surface of the tooth sleeve is provided with a first tooth structure, and the first tooth structure is distributed along the axial direction of the tooth sleeve; the handle is provided on the tooth sleeve, and the inner wall thereof is provided with a second tooth structure, and the second tooth structure matches the first tooth structure. The adjustable wall-mounted faucet provided by the present invention transmits the rotational force between the handle and the valve core through the valve core to realize its switch and flow adjustment functions. On the other hand, the relative position of the handle and the valve core is changed, so that the wall-mounted faucet can match the reserved holes of the wall of different depths, which is convenient for installation without cutting, saving installation costs.

The invention belongs to the technical field of road maintenance, and particularly relates to a road maintenance device which comprises a bottom plate and two groups of wheels, a storage tank is arranged on the bottom plate, one group of wheels are rotatably mounted on one side of the bottom plate, a handle is arranged at the tail of the bottom plate, universal wheels are arranged at the lower end of the tail of the bottom plate, and a crack pouring mechanism is arranged on the other side of the bottom plate. The crack pouring mechanism comprises a fixing sleeve and a material containing box, the fixing sleeve is fixedly connected with the other side of the bottom plate, the other set of wheels are rotationally installed on the fixing sleeve, the material containing box is movably connected with the fixing sleeve in an inserted mode, rectangular grooves are formed in the two sides of the fixing sleeve, bearing strips are arranged on the two sides of the material containing box and slidably connected with the rectangular grooves, and screw rods are in threaded connection with the two sides of the fixing sleeve. Due to the fact that the lower end of the material containing box is tightly attached to the road surface, in the moving process of the material containing box, repairing materials can be poured into road seams, meanwhile, redundant repairing materials are taken away, the repairing materials coated on the road surface are more uniform, and the purpose of saving the repairing materials is achieved.

The invention discloses a clean room door which comprises a door plate, a first connecting structure arranged between the upper portion of the door plate and a door frame and / or a second connecting structure arranged on the lower portion of the door plate, and the first connecting structure and / or the second connecting structure are / is used for achieving rotation of the door plate and have the tendency of rotating and closing after the door plate is opened. The first connecting structure comprises a first rotating shaft, the second connecting structure comprises a second rotating shaft, and the axis of the first rotating shaft and the axis of the second rotating shaft coincide and are located in the vertical plane where the door plate is located. According to the clean room door, by arranging the first connecting structure and the second connecting structure, rotation of the door plate is achieved, and opening and closing of the door are achieved. Meanwhile, the first connecting structure and / or the second connecting structure can have the tendency of rotating and closing after the door plate is opened, so that the clean room door can be opened and closed in two directions and in front and back directions and can be automatically closed after being opened, and the sealing performance is guaranteed.

This invention provides a magnetic spin valve, a magnetic superconducting memory cell, and their fabrication method, belonging to the field of superconducting spintronics technology. The magnetic spin valve of this invention includes a first superconducting layer, a first ferromagnetic layer, a second superconducting layer, a second ferromagnetic layer, and a third superconducting layer stacked sequentially. By changing the parallel or antiparallel magnetization alignment of the first and second ferromagnetic layers, the resulting magnetic exchange effect causes the superconducting transition temperature T of the second superconducting layer to change. c The change causes the second superconducting layer to switch between superconducting and non-superconducting states, modulating the Josephson coupling of the entire device, and ultimately achieving the control of the superconducting critical current I. c Amplitude modulation enables the storage of "0" and "1". The magnetic spin valve proposed in this invention innovatively combines a superconducting spin valve and a magnetic Josephson junction, achieving this by changing the critical superconducting current I. c This enables complete switching of critical superconducting current to increase the storage window, providing a solution for optimizing the overall performance of cryogenic memories.