30results about How to "Good sealing fit" patented technology

The invention discloses a reaction chamber device with double-layer airflow and a quartz false ogive that is used for a MOCVD system, comprises a horizontal quartz tube, metallic flanges that are arranged at two ends of the quartz tube and used for sealing the two ends of the quartz tube, the rectangle quartz false ogive and a substrate that are arranged inside the quartz tube, and an inclined plane lining that is placed on the substrate and arranged inside the quartz false ogive, and the arrangement of the quartz false ogive and the inclined plane of the substrate satisfies the ideal hydrokinetic model of the chemical gas phase reaction of the MOCVD. By utilizing the characteristics of simple design, good bearing pressure ability and convenient sealing and matching of the cylindrical quartz tube as well as the rectifying action of the reaction chamber with the rectangle false ogive, and combing with other MOCVD technical equipments, the invention forms the MOCVD system with the reaction chamber with the double-layer airflow and the quartz false ogive, which has simple structure, low production cost and even material growth; the quartz false ogive that has convenient disassembly and assembly is convenient for cleaning the reaction chamber, and the crystal growth pollution is reduced, thus obtaining crystal materials with high quality; the reaction chamber device with the double-layer airflow and the quartz false ogive can further be used for the CVD and MOCVD of the growth of other semiconductor materials such as Si, GaAs, InP and GaN, etc., as well as horizontal reaction systems of HVPE, etc.

The invention discloses a treatment device for thiocyanate wastewater. The treatment device comprises treatment equipment, a neutralizing device which is arranged on the rear side of the treatment equipment, a catalyst chamber which is connected with the treatment equipment, a reactant chamber and a stirring device which is arranged in the treatment equipment, wherein the treatment equipment includes a reaction tank, an air inlet section which is disposed at the bottom of the reaction tank and an air inlet member which is matched with the air inlet section, and the stirring device is providedwith an aeration member which communicates with the air inlet member. According to the treatment device, by arranging the aeration member on the stirring device, gas can be introduced directly into the wastewater for aeration in the process of wastewater stirring through the stirring device, so that it is ensured that the wastewater is stirred completely by the introduced gas into the wastewater for aeration, the gas, wastewater and catalyst which are sprayed are mixed to a maximum extent for a reaction, and thiocyanate compounds are removed effectively from the wastewater.

The invention relates to a natural gas electromagnetic valve, which comprises a valve body, wherein the valve body comprises an inlet section and an outlet section; the inlet section and the outlet section are partitioned through a partition board; the periphery of the valve body is provided with at least two valve passages; the valve body corresponding to the valve passages is provided with valve core assemblies for partitioning or conducting the corresponding valve passages; and the valve core assembly comprises an armature, a guide sleeve covered outside the armature, a coil around the guide sleeve and a return spring arranged between the guide sleeve and the armature. The inlet section and the outlet section of the natural gas electromagnetic valve are partitioned through the partition board, the periphery of the valve is provided with the at least two valve passages, and each valve passage is provided with the corresponding valve core assembly to control the opening and closing of the corresponding valve passage so as to gradually open the valve passages, gradually accumulate the flow in a conveying pipeline, avoid flow surge caused by fully communicating the inlet section and the outlet section of the valve body at one time and prevent the flow surge of the conveying pipeline from sharply impacting monitoring equipment.

The invention discloses a cooking pan using steam heating, and a steam heating type cooking utensil, belongs to the field of kitchen household appliances, and solves the problem that a pan cover of acooking pan in the prior art is inconvenient to clean. The cooking pan provided by the invention comprises a pan body and a pan cover, wherein the pan cover comprises an outer cover and an inner cover; the outer cover covers the pan edge of the pan body; and the inner cover and the pan body are matched to form a cooking chamber. The cooking pan further comprises a steam guide pipe, wherein a projected air inlet connector is arranged on the inner side of the outer cover and penetrates through the inner cover; and the steam guide pipe can be detachably arranged on the air inlet connector and axially positions the inner cover. The cooking pan provided by the invention adopts the design of the detachable inner cover, so that the inner cover can be conveniently and independently cleaned.

The invention discloses an opening fiber pneumatic packing device. The opening fiber pneumatic packing device comprises a machine frame, wherein the machine frame, the front wall, the rear wall, the left side wall, the right side wall, a top cover and a bottom board are connected to form an internal sealed cavity, the top cover of the machine frame is provided with a first air cylinder, the left side wall of the machine frame is provided with a controller, a first air magnetic exchange valve, the controller is connected with a motor of a cyclone collector, the first air magnetic exchange valve is connected with the controller, and a high-pressure air source is connected with the first air cylinder through the first air magnetic exchange valve. The rear wall is provided with an air inlet which is connected with an opening fiber air outlet pipe of the cyclone collector, a movable connecting rod of the first air cylinder is connected with a fiber pressing plate, the outline of the fiber pressing plate is matched with the inner wall of the internal sealed cavity, the fiber pressing plate vertically moves in the internal sealed cavity, the upper portion of the front wall is provided with a cavity air outlet provided with a fiber filter screen, the cavity air outlet is connected with a pipeline, and an air exhaust pipe is connected with a dust collecting bag. Fibers are packed timely, the environment of a production field is good, and production cost and labor intensity are lowered.

The invention discloses a highly-sealed ball valve, which comprises a main valve body, wherein the main valve body is provided with a channel penetrating through the main valve body, the middle part of the channel is provided with a valve seat assembly and a rotatable valve rod, the valve rod is fixedly provided with a ball matched with the valve seat assembly, meanwhile, the valve seat assembly comprises a rigidity seal valve seat and a valve seat supporting ring which are matched with each other, and a sealing fin is arranged between the rigidity seal valve seat and the valve seat supporting ring. The sealing fin is manufactured by adopting metal materials, thus being high-temperature resistant. Besides, good sealing match is realized between the inner edge part of the sealing fin and the rigidity seal valve seat through welding, good sealing match is realized between the outer edge part of the sealing fin and the valve seat supporting ring by tightly pressing the outer edge on a sealed step, and thus the ball valve has excellent integrated sealing performance.

The invention relates to a novel adjustable sealing ball valve with a high pressure releasing function. The novel adjustable sealing ball valve with the high pressure releasing function comprises a valve body, a ball body, a valve seat and a valve rod driving the ball body to rotate. The valve seat can slide relative to the valve seat and is arranged inside the cavity of the valve body which is communicated with an inlet flow channel and an outlet flow channel; the upper ring of the valve body is provided with a sealing ring capable of plugging the communicating portion of the internal flow channel of the ball body and the cavity of the valve body, the ring-shaped outer walls of the valve seat portions of the inlet flow channel and the outlet flow channel are rotatably connected with the valve body in a matched mode, and parts of the outer walls are connected in a sealed mode with the valve body through ring-shaped sealing modules; each ring-shaped sealing module is composed of at least one one-way sealing ring, and the slots of at least one one-way sealing ring on the valve seat are in the same direction and back to the ball body. By means of the one-way sealing rings arranged between the valve seat and the valve body, the novel adjustable sealing ball valve achieves the pressure releasing function, thereby solving the problem of damage due to high pressure inside the valve body and prolonging the service life, and meanwhile, by means of a worm and gear driving mechanism, achieves an sealing adjustable function.

The invention relates to a fluid output metering valve and belongs to the valve control technical field. The metering valve comprises a valve body equipped with a valve rod hole and an air inlet hole. The middle section of the valve rod hole communicates with the air inlet hole, and an air storage ring is embedded at the external end of the valve rod hole. A valve rod goes through the air storage ring. An air outlet hole is made at the external end of the valve rod, and the internal end of the valve rod relies on an elastic part at the bottom of the valve rod hole. When the valve rod is at the position of jacking outwards, the air inlet hole of the valve body communicates with a metering chamber, and the metering chamber and the air outlet hole of the valve rod are blocked. When the valve rod is at the position of pressing inwards, the air inlet hole of the valve body and the metering chamber are blocked, and the metering chamber communicates with the air outlet hole of the valve rod. The air storage ring consists of an internal air storage ring and an external air storage ring, which are inserted and embedded. A typical structure is that the external side of the internal air storage ring forms circumferential flanges, which are bowl-bottom shape; the external air storage ring is cylindrical, and circumferential embedded edges are embedded and inserted at the internal end. When the capacity of the metering chamber is to be changed, only the external air storage ring has to be replaced properly. Thus, the valve is provided with an economic cost, and the installation and dismantlement is quite convenient.

The invention discloses a blocking bag for a vacuum heat insulation board. The blocking bag (1) is of a baggy structure with one side open. The blocking bag comprises a composite blocking film layer (2), an aluminum foil layer (3) and a macromolecular heat isolation bonding layer (4) with the low fusion point, and the composite blocking film layer (2), the aluminum foil layer (3) and the macromolecular heat isolation bonding layer (4) are sequentially composited from outside to inside. The blocking bag has the advantages that the blocking bag for the vacuum heat insulation board is of the baggy structure, after an opening of the blocking bag is closed, the gas tightness of the blocking bag is ensured, vacuumizing operation is facilitated, and the vacuum degree of the vacuum heat insulation board can be maintained for a long time; and meanwhile, the blocking bag has the dual heat insulation effects, the heat insulation and heat preservation effects are good, the sealing matching performance of the blocking bag with a core plate is good, and the service life of the vacuum heat insulation board is prolonged.

A novel segmented combined type multifunctional high-pressure rotary control head disclosed by the present invention comprises a control seat, a top sleeve and a sealing mechanism, the control seat comprises a base and an air guide sleeve, the air guide sleeve is installed in the middle of the upper end face of the base, the air guide sleeve is vertically and fixedly connected with the base, the top sleeve is installed on the upper end face of the air guide sleeve, and the sealing mechanism is installed on the top sleeve. The top sleeve is fixedly connected with the gas guide sleeve, the sealing mechanism is installed in the middle of the top sleeve, and the sealing mechanism is fixedly connected with the top sleeve, so that it is guaranteed that the gas guide sleeve can be stably installed on the upper end face of a wellhead through the base when a user needs to use the gas guide sleeve, and it is guaranteed that the user can install the gas guide sleeve through the base for use; a user can conveniently cooperate with a wellhead for connection and exhaust through the sleeve, the user can stably install the matching sleeve on the sleeve to ensure that the top sleeve is stably installed for use during use, and the user can conveniently install the lower ring sleeve at the upper end of the matching sleeve for cooperative use.

The invention relates to a wireless microwave communication device which comprises a box body and a parabolic antenna, the parabolic antenna is arranged on the upper side of the box body through a supporting assembly, a first rotating plate is arranged in the center of the bottom of the parabolic antenna, the upper side plate face of the first rotating plate is fixed to the parabolic antenna, thefirst rotating plate is provided with two clamping blocks, and the upper sides of the clamping blocks are wedge faces. First limiting holes are formed in the wedge surfaces; the supporting assembly comprises a supporting rod, a second rotating plate is arranged on the supporting rod, a groove body and a receding groove are formed in the second rotating plate, limiting grooves are used for axiallylimiting the screwed-in clamping blocks, first ball screws are arranged on the groove edges of inserting grooves and are in limiting fit with the first limiting holes, and inclined faces are arrangedon upper side grooves of the limiting grooves so as to achieve screwing fit; the lower part of the supporting rod is hinged to the upper part of the box body through an arc-shaped hinge block, the upper side of the box body is provided with an inclined strut, the lower portion of the inclined strut is hinged to the upper side of the box body, and the upper portion of the inclined strut is in sliding limiting fit with an adjusting part. The wireless microwave communication device is convenient to install and use and has a protection function during outdoor operation.

The present invention discloses a developing solution temperature control device and a temperature control method thereof. The device comprises a developing solution supply pipe, a first heat exchangethree-way joint, a second heat exchange three-way joint and a heat exchange sleeve, the heat exchange sleeve sleeves the developing solution supply pipe, the developing solution supply pipe sequentially penetrates through the first heat exchange three-way joint and the second heat exchange three-way joint, and one end of the heat exchange sleeve is hermetically inserted and fixed in a first connecting pipe orifice; the other end of the heat exchange sleeve is hermetically inserted and fixed in a second connecting pipe orifice, a heat exchange medium supply pipe is hermetically inserted in a heat exchange medium injection pipe orifice, a heat exchange medium outflow pipe is hermetically inserted in a heat exchange medium outflow pipe orifice, and the heat exchange medium supply pipe and the heat exchange medium outflow pipe are respectively connected with a temperature adjustment and heat exchange device for adjusting the temperature of the heat exchange medium. According to the temperature control device and method, the temperature of the developing solution can be adjusted more accurately.

The invention discloses a stator assembly of an electronic water pump. The stator assembly comprises a casing and a stator component, the casing is a plastic casing, the plastic casing wraps the stator component, a rotor assembly mounting cavity is further formed in the casing, and a mandrel for mounting a water pump impeller is embedded into the bottom in the rotor assembly mounting cavity; a lower flange part matched with an upper cover of the electronic water pump is also arranged at the upper end of the plastic casing, and the lower flange part is positioned on the periphery of an upper opening of the rotor assembly mounting cavity; and a heat dissipation plate is installed below the casing, and a fluid heat dissipation cavity communicating with the rotor assembly mounting cavity is formed between the heat dissipation plate and the cavity bottom of the rotor assembly mounting cavity. The cooling liquid flows through the heat dissipation plate through the fluid heat dissipation cavity and takes away heat on the heat dissipation plate, so that cooling of the stator assembly and a circuit board is achieved, the heat dissipation efficiency is high, and conditions are provided for manufacturing a high-power water pump.

The invention provides a water pause mechanism and a water outlet device, and relates to the technical field of bathroom equipment. The water pause mechanism comprises a main body, a base, a switching seat and an elastic piece. The switching seat is a cover-shaped geometry and is sleeved with a sealing piece, and first switching teeth and second switching teeth are arranged on the upper surface and the lower surface of the switching seat respectively. The main body is provided with first teeth grooves and first clamping grooves which are located above the first switching teeth, and the base is provided with matching teeth located below the second switching teeth. The first switching teeth are matched with the first teeth grooves and the first clamping grooves, and the second switching teeth are matched with the matching teeth, so that the switching seat can realize switching of the water pause mechanism. The water outlet device comprises a water outlet mechanism and the water pause mechanism, and switching of the water outlet state of the water outlet mechanism can be achieved through the water pause mechanism.

The invention provides a seal-type cable sheath, a manufacturing method thereof and a temperature sensor sealing lead-out assembly. The seal-type cable sheath comprises an insulating cable sheath anda sealing plug, wherein the insulating cable sheath penetrates through the center of the sealing plug. The sealing plug is made of a mixed material of polyamide and glass fiber, the insulating cable sheath is made of polyamide, and the sealing plug and the insulating cable sheath are integrated through thermoplastic die casting. The seal-type cable sheath is combined with a temperature sensor to form the temperature sensor sealing lead-out assembly. The technical scheme has the technical advantages of being simple in structure, good in sealing performance, low in manufacturing cost, wide in application range and long in service life.

The invention provides a transparent box with good sealing performance. The transparent box with the good sealing performance comprises a box body and a box cover. The box body is arranged in the modethat an opening is formed in the upper side. The box cover is arranged on the box body in a covering mode. Limiting portions are arranged on the left side wall and the right side wall of the box bodyrespectively and arranged in the mode of stretching in the downwards inclined direction. Rotating fixing arms are arranged on the left side and the right side of the box cover respectively, and the upper end of the rotating fixing arms are hinged with the box cover. Barb portions are arranged at the lower ends of the rotating fixing arms and located on the lower sides of the limiting portions, and the barb portions and the limiting portions are in limiting fixing connection in the up-and-down direction. An annular encircling plate which downwards protrudes is arranged on the lower side face of the box cover, and the encircling plate and the inner side wall of the box body are arranged in a separated mode. The transparent box with the good sealing performance further comprises an annular sealing ring. The sealing ring comprises an annular fixing portion and an annular sealing portion.