32results about How to "Movement hindrance" patented technology

The invention provides projection equipment. The projection equipment comprises a lens assembly, a lens base, a heat transfer assembly and a cooling assembly, wherein the lens assembly comprises a lens cylinder, the cooling assembly sleeves an outer side of the lens cylinder and is connected with the lens base, the heat transfer assembly is arranged on an outer wall of the lens cylinder and is elastically connected with the cooling assembly, and heat of the lens assembly is conducted to the cooling assembly. By the projection equipment, effective cooling during working can be achieved.

The invention relates to the technical field of magnetic materials, and discloses a preparation technology of a high-performance nickel-zinc ferrite material. The preparation technology comprises thefollowing steps: mixing main materials comprising iron oxide, zinc oxide and nickel oxide, then adding a first additive, and carrying out dry mixing to obtain a mixture, wherein the first additive iscomposed of molybdenum oxide, diyttrium trioxide, tin oxide and titanium dioxide; pre-sintering the mixture, and cooling the pre-sintered mixture to obtain a pre-sintered material; mixing the pre-sintered material with a second additive, and then performing wet crushing to obtain a crushed material, wherein the second additive is composed of lead oxide, boron oxide, vanadium pentoxide, calcium oxide, silicon dioxide ad bismuth oxide; adding polyvinyl alcohol to the crushed material, and carrying out spray granulation to obtain granules; adding the granules into a mold, and pressing the granules to form a blank; and carrying out microwave sintering treatment on the blank, and cooling the treated blank to room temperature to obtain the high-performance nickel-zinc ferrite material. The high-performance nickel-zinc ferrite material prepared in the present invention has excellent magnetic properties.

The invention belongs to the technical field of geological exploration, particularly relates to an underground geophone for geophysical exploration and a use method, and aims to solve the problems that existing geophones are manually conveyed into a mine and then fixedly mounted, however, the mine is deep, and certain potential safety hazards often exist when the geophones are manually conveyed. According to the technical scheme, the geophone comprises a bearing box and a geophone body, the geophone body is fixedly installed on the top of the bearing box, a walking assembly is connected to the bearing box, and an installation cover located on the right side of the geophone body is fixedly installed on the top of the bearing box. The detector can be moved to any position in a mine in a self-walking mode, stable braking can be achieved, information detection can be conveniently conducted on a rock stratum in the mine, people do not need to enter the mine, and therefore the detector has good use convenience and safety.

The present invention provides a thread clip apparatus(1)for sewing machine, which comprises a tension release mechanism(3)capable of releasing the tension applied to sewing thread independent of the action of the thread-severing device(presser foot raising device), wherein the tension release mechanism(3)comprises a release member(31)entering between a pair of clamps(2, 2)clamping and holding sewing thread to release the holding of the sewing thread, a driving member(32)interlocked with the thread-severing device(presser foot raising device)(5)to move the release member(31), an ejection member for ejecting the release member(31). The release member(31)comprises an joint part(31d)against jointed with the driving member(32), a moving guide part(31e)for guiding the release member(31)to the position where the holding of the sewing thread is released during moving the release member(31). Thus, the tension release mechanism can be driven independently even when the thread-severing device(presser foot raising device)is connected with the tension release mechanism.

The invention discloses a high-coercivity neodymium-cerium-iron-boron permanent magnet and a preparation method and application thereof. The permanent magnet has at least one of the following characteristics: the area of a grain boundary RE-rich phase in the magnet accounts for more than 4% of the whole view area; grain boundary RE-rich phases in the magnet are uniformly and finely distributed; and the average value of the ratio of the area of the bulk grain boundary RE-rich phase at the intersection of more than three main phase grains to the total area of more than three adjacent main phase grains at the periphery is less than or equal to 30%. When the prepared magnet is used as a grain boundary diffusion magnet base material, the excellent diffusion effect is achieved. The RE-rich phase in the magnet is continuously distributed along the grain boundary, so that more channels are provided for diffusion, the diffusion depth of a diffusion source towards the interior of the magnet is improved, the distribution uniformity of the diffusion source in the magnet is improved, the consistency of internal structure components of the diffusion magnet is improved, and the magnetic performance of the diffusion magnet is further improved.

The invention belongs to the technical field of medical instruments and particularly relates to a novel medical needling instrument for acupuncturology. The novel medical needling instrument comprises a needle tube, a needle core and a hose, wherein the needle tube sleeves the needle core and is provided with a sharp part used for piercing into skin, and the needle core can move back and forth along an axial direction of the needle tube; one end, far away from the sharp part, of the needle tube is mounted on a box body, and the needle core penetrates through the box body and extends into the needle tube; one end, far away from the sharp part of the needle tube, of the needle core is mounted on a sliding button, the sliding button penetrates through the box body and extends out of the box body, and correspondingly, a sliding groove is formed in the box body, so that the sliding button can move along the length direction of the sliding groove, and then, the needle core is driven to move back and forth along a length direction of the needle tube; and the hose sleeves the needle tube and can move back and forth along the length direction of the needle tube so as to shield or expose the sharp part of the needle tube. According to the novel medical needling instrument, the embedding of catgut sutures is seamlessly connected after the treatment of a sweep technique, so that long-time meridian stimulation is completed; and a positive and long-acting treatment effect is achieved.

The invention discloses a smoke deflector for integrated lampblack purification equipment for a kitchen, comprising a lampblack collection portion. A lampblack treatment cavity is formed in the lampblack collection portion; a treatment cavity inlet is formed in the lower portion of the lampblack treatment cavity; an oil baffle and an inclined plate used for containing the oil baffle are arranged in the treatment cavity inlet; a groove is further formed in the inner wall of the treatment cavity inlet; a guide plate and a connecting member are further arranged in the treatment cavity inlet; theguide plate is located below the oil baffle; one end of the guide plate is located on the groove, and the other end is connected with the connecting member; the connecting member is connected with theinclined plate; a square groove is formed in the upper surface of the guide plate; a support adjustment assembly is arranged in the square groove, and comprises an arc-shaped plate, a connecting block and a support plate; the two ends of the arc-shaped plate are fixed in the square groove; and a clamping assembly is further arranged on the connecting block. The size of a lampblack inlet of the lampblack collection portion can be reduced by the arranged guide plate, so that the negative pressure in the lampblack collection portion is increased, and the lampblack extraction effect is improved.

The invention discloses an intelligent magnetic type data line, and belongs to the technical field of data lines. The main points of the technical scheme are that the intelligent magnetic type data line comprises a power end connecting part, a line body and an equipment end connecting part, and the line body is used for connecting the power end connecting part and the equipment end connecting part; one end, close to the wire body, of the power supply end connecting part is provided with a connecting mechanism, one end, close to the power supply end connecting part, of the wire body is provided with a plug-in component, and the plug-in component is detachably connected with the connecting mechanism; the connecting mechanism and the plug-in component are both magnetic, and the magnetic poles of the opposite sides of the connecting mechanism and the plug-in component are opposite, so the data line can be maintained more conveniently, and the falling phenomenon caused by mistaken touch is reduced.