35results about How to "Change gap size" patented technology

The invention relates to a storage device and a refrigerator. The storage device comprises a drawer, a sealing device, a moisturizing module and a moisture adjustment device, wherein the moisturizing module is arranged at the sealing device and is used for improving or retaining moisture in a storage space; the moisture adjustment device controllably or operably changes the size of a gap between a moisturizing cover and the drawer so as to be matched with the moisturizing module to adjust the moisture in the storage space. Thus, according to the storage device, as the size of the gap between the moisturizing cover and the drawer is changed, the moisture adjustment range is large, and the structure of the storage device is simplified. When no gap exists between the moisturizing cover and the drawer, the inner part of the storage device retains the moisture corresponding to the fixed moisture permeable threshold value of the moisturizing module, and excessively high moisture is avoided. The invention further relates to the refrigerator which comprises the storage device and a box body, wherein at least one storage room is limited in the box body. The storage device can be taken out to be put in any storage room so as to provide the moisture-adjustable storage space for the refrigerator.

The invention discloses a cutting and screening device for fiber products and a cutting and screening method for the fiber products. The cutting and screening device for the fiber products mainly comprises a first conveying unit, a second conveying unit and a cutter, wherein the first conveying unit comprises a first movable wheel set, and the second conveying unit comprises a second movable wheel set. A gap is reserved between the first movable wheel set and the second movable wheel set, the fiber products on the gap are cut by the cutter, and a top and a tail can be generated when the fiber products are cut by the cutter. During screening, the second movable wheel set is far away from the first movable wheel set to screen tops, and the first movable wheel set is far away from the second movable wheel set to screen tails, so that the cutting and screening efficiency of the fiber products is improved.

The invention belongs to the technical field of plastic injection molding, and relates to a TPU-ABS composite board co-extrusion technology. According to the technology, an inner flow seam located in a first mold body, a first side flow seam located on the interface of a second mold body and the first mold body, a second side flow seam arranged on the interface of a third mold body and the first mold body and an extrusion seam formed by the second mold body and the third mold body in a spaced manner are included; the inner flow seam, the first side flow seam and the second side flow seam are joined on the inner side of the extrusion seam; the position, close to the inner flow seam, of the first mold body is provided with a first heating pipe, the position, close to the first side flow seam, of the second mold body is provided with a second heating pipe, and the position, close to the second side flow seam, of the third mold body is provided with a third heating pipe. The temperature of TPU and the temperature of ABS are controlled in a divided manner, it is ensured that a co-extrusion composite board has the higher machining efficiency and has the firm interlayer combination force, and poor machining can be prevented.

The invention discloses dust settling equipment with a spray end capable of swinging back and forth for atmospheric dust pollution treatment, comprising a device body, a handle, an electric telescopic rod, a spray barrel and a water pump. The handle is fixedly mounted at the left end of the device body, the electric telescopic rod is fixedly mounted in the device body, a one-way circulating valve is fixedly installed on a blow-off pipe, a vertical rod is installed on the inner side of an extrusion block, a water conveying pipe is installed below the left end of the spray barrel, the end of the water conveying pipe is fixedly installed on the side of the water pump, a fixed toothed plate is installed at the lower end of a positioning gear ring, and the side of the lower end of the fixed toothed plate is fixedly mounted at the upper end of the device body. According to the dust falling equipment with the spray end capable of swinging back and forth for atmospheric dust pollution treatment, the overall spray range can be enlarged in the spray type dust falling process, the working efficiency during atmospheric dust treatment is improved, and meanwhile, dust on the ground can be well absorbed and removed in the spray type dust falling process.

The invention discloses a spray head device of a wax injection machine for precision casting. The spray head device of the wax injection machine for the precision casting comprises a shunting block, wherein a regulation cavity is formed in the shunting block, the inner wall of the top end of the regulation cavity communicates with the outside world and is provided with four slide chutes which arecentrosymmetric, a slide rod is connected in each slide chute in a sliding mode, and a valve core assembly located in the regulation cavity and used for changing the quantity of spraying outlets is arranged on each slide rod. The spray head device of the wax injection machine for the precision casting adopts a thread transmission cooperation mode, accurately controls switching between a single injection hole mode and a multiple injection hole mode, meets technical demands for synchronous processing of multiple molds, uses rotatable baffle structures symmetrically arranged in the rectangular cavity, changes the size of a gap between each two adjacent baffles to change flow speed, and meanwhile uses a control switch of a ball structure to control each baffle structure, achieves precision flow speed control by utilizing the principle that distance increase values in the horizontal direction are identical in all descending segments of the ball, and accordingly meets technical demands forthe precision casting of the wax injection machine.

The invention relates to an ultrafast diagnosis technology, in particular to a full terahertz driven electron beam manipulation and characterization system and method to solve the problems that an existing streak camera is low in time resolution, complex in structure and poor in stability. The technical scheme adopted by the invention is as follows: the full-terahertz-driven electron beam controland characterization system comprises a femtosecond laser, an ultraviolet laser pulse generation device, a first reflector, a beam splitter, a single-cycle terahertz generation device, a second reflector, a multi-cycle terahertz generation device, a camera, a vacuum chamber and a direct-current acceleration system, wherein the direct-current acceleration system is sequentially arranged in the vacuum chamber along a light path; the device comprises a perforated off-axis parabolic mirror, a terahertz electron beam control system, a terahertz deflection system and a fluorescent screen. The invention also provides a full terahertz driven electron beam manipulation and characterization method.

The invention discloses a totally-enclosed split type powder metallurgy soft magnetic tank which is characterized by comprising base plates, a plurality of laminated circular magnetic ring shield walls and a magnetic core, wherein the laminated circular magnetic ring shield walls are installed between the two base plates; the magnetic core is formed by laminating a plurality of cylinder bodies; the magnetic core is fixed to central shafts of the magnetic ring shield walls; winding spaces are formed between the magnetic ring shield walls and the magnetic core; the center of the magnetic core is provided with a fixed hole; a bolt penetrates through the fixed hole for fixing the magnetic core to the two base plates; and line outlet grooves are arranged on the base plates or the magnetic ring shield walls. The totally-enclosed split type powder metallurgy soft magnetic tank can solve the technical problem that the electromagnetic compatibility and the magnetic leakage flux can not be guaranteed because a coil is exposed out of a magnet by winding the coil on a circular iron powder core or a square split iron core in the prior art.

The invention relates to the technical field of aquaculture, in particular to an ecological cycle aquaculture box which comprises a fish box and a plant pool, a filter device with adjustable gaps, a fixed handle, a plurality of supporting columns and a first water drain valve are arranged in the fish box, and the supporting columns support the whole filter device. A rotating disc is rotated to drive a rotating shaft to rotate so as to drive a reel to rotate, and then elastic plates are tightened and bent by winding ropes to deform, so that gaps in the filter device can be changed by changing the distance between the elastic plates, large particles can be extruded to be crushed, the particles with different sizes can be filtered, convenience is provided in the replacement process, and the filtering efficiency and the filtering function can be effectively improved.

The invention discloses a high efficient and environmental friendly ore crusher for mining capable of adjusting the sizes of particles, and belongs to the technical field of ore crushers. The high efficient and environmental friendly ore crusher for mining capable of adjusting sizes of the particles comprises a material sending support, a crushing device and a material receiving device, the material sending support is connected to the top of the crushing device, the material receiving device is connected to the bottom of the crushing device, the crushing device comprises an upper machine bodyand a lower machine body, the upper machine body is internally connected with a material inputting hopper and a fixing lining plate, the lower machine body is internally connected with a floating bush, the bottom of the floating bush is connected with an eccentric shaft, and the bottom of the lower machine body is connected with a discharging bin. According to the high efficient and environmentalfriendly ore crusher for mining capable of adjusting sizes of the particles, the stereo material sending support is arranged, working strength is reduced, the working efficiency is improved, the material receiving device is arranged, thus in-time transportation of crushed ores is guaranteed, it is avoided that the crushed ores block the discharging bin and influence the normal operation of the crushing device, an inclined plate is arranged, thus damages of the ores on the crushing device is reduced, and the service life of machinery is prolonged.

The invention discloses an ultra-wideband filter with multiple notch frequencies, and belongs to the technical field of electrical devices. The ultra-wideband filter is composed of a micro-strip dielectric base plate, a seven-order band-pass filter and eight arrow-shaped resonators, wherein the micro-strip dielectric base plate is 0.5-mm in thickness, and the dielectric constant is 3.48; a first input/output port of the seven-order band-pass filter is connected with a rear first unit element; the first unit element is connected with a second unit element; the second unit element is connected with a third unit element; the third unit element is connected with a second input/output port of the seven-order band-pass filter; a first short-circuited stub is connected between the first input/output port and the first unit element to form a T-shaped structure; the first short-circuited stub is in ground connection through a first via hole. According to the ultra-wideband filter, the ultra-wideband filter design can be separated from the notched characteristic design; notch resonators can be introduced without changing any structure parameters of the conventional filter, and the performance of the conventional filter is basically prevented from being influenced.

The invention discloses a medical cabinet door gap adjusting device. The medical cabinet door gap adjusting device comprises a medical cabinet, an opening in one side of the medical cabinet is movably connected with two cabinet doors, the two cabinet doors are provided with symmetrical movable grooves, a movable plate is arranged in one movable groove, a connecting device is arranged in the center of the movable plate, a fixing device is arranged on the outer side, corresponding to the connecting device, of the cabinet doors, a rotating block is arranged on one side of the connecting device, a limiting device is arranged at the other end of the rotating block, a fixing cap is placed on the outer side of the center of the rotating block, a fixing rod is in threaded connection with the inner wall of the fixing cap, and the fixing rod penetrates through the rotating block and extends out to be fixedly connected with the fixing device. The size of a gap between the two cabinet doors can be changed by adjusting the position of the movable plate, when the movable plate is embedded into the movable groove in the other side, the cabinet doors cannot be opened, operation is easy and convenient, the sealing effect is better, and the influence of external environment changes on medicine on the inner side is reduced.

The invention relates to the technical field of heat dissipation of electronic equipment, and discloses a flow adjusting device and a liquid cooling cabinet. The flow adjusting device comprises a partition plate which is arranged at the bottom of the liquid cooling cabinet and is provided with a plurality of open holes penetrating through the thickness of the partition plate, and plugging heads which are in one-to-one correspondence with the open holes and comprise first ends and second ends which are oppositely arranged, and the cross sectional areas of the plugging heads are gradually increased in the direction from the first ends to the second ends; the device further comprises adjusting mechanisms which are in one-to-one correspondence with the plugging heads and used for adjusting thedepths of the plugging heads extending into the open holes. In the embodiment, the partition plate divides the internal space of the cabinet body into the upper part and the lower part which are isolated from each other, cooling liquid can enter the upper-layer space only through the open holes in the partition plate, the flow of the cooling liquid entering each electronic device is changed by adjusting the flow area of the cooling liquid in the open holes, and the flow adjusting device has the advantages of being simple in structure, high in adaptability, convenient to adjust and the like.

The invention discloses a rehabilitation device for the cardiovascular medicine department. The rehabilitation device comprises an air supply module and a leg sleeve. Wherein a plurality of air bags connected with the air supply module for supplying air are arranged in the leg sleeve. The instrument further comprises a seat and a leg sleeve wearing and dismounting mechanism. The seat is provided with a leg lifting assembly, a thigh assembly, a knee assembly and a shank assembly; The shank assembly is connected with the thigh assembly through a knee assembly with a rotating structure; the leg lifting assembly is installed on the lower portion of the seat and used for driving the shank assembly to move upwards to lift the shanks of the patient. The lower end of the shank assembly is provided with a pedal, and the leg sleeve wearing and dismounting mechanism comprises leg sleeve rails arranged along the outer sides of the shank assembly, the knee assembly and the thigh assembly. The instrument also includes a leg sleeve moving mechanism that moves along the leg sleeve track and is fixedly connected to the upper end of the leg sleeve, wherein the lower end of the leg sleeve is connected to the pedal. The instrument can help a person who is not flexible in legs to sleeve the leg sleeve and enable the legs of the person to be lifted to a suitable use state, so that the problem that a user having inconvenience in legs cannot conveniently use the leg sleeve in the prior art is solved.

The invention provides a blade structure, a gas compressor with the blade structure and a control method for controlling the gas compressor, the blade structure comprises a blade and a wall surface rotating relative to the blade, and a first gap is formed between a blade top of the blade and the wall surface; each blade is provided with a windward first front edge and a first rear edge opposite to the first front edge; the blade top is provided with a plurality of flow guiding devices used for controlling leakage flow of the blade top, the flow guiding devices are distributed in the direction from the first front edge of the blade to the first rear edge of the blade, and when the flow guiding devices are in the first working state, the flow guiding devices are in the second working state. And a second gap smaller than the first gap is formed between at least one part of the flow guide device and the wall surface.