47results about How to "Solve the problem of loose fixation" patented technology

The invention provides a bone plate implanted from the front inner side of the distal femur, belonging to the technical field of medical apparatus and instruments for the department of orthopaedics, and used for treating the condylar fracture and bone shaft fracture of the distal femur. The technical scheme is as follows: the bone plate is composed of a bone plate condylar part, a transitional face and a bone plate shaft part which are connected together, wherein the bone plate condylar part is opposite to the front inner side surface of the condyle of the distal femur, the lower surface of the bone plate condylar part is adaptive to the front inner side surface of the condyle of the distal femur in shape, the bone plate shaft part is opposite to the inner side surface of the distal femur, the lower surface of the bone plate shaft part is adaptive to the inner side surface of the distal femur in shape, and a plurality of fixing holes are uniformly distributed on the bone plate condylar part and the bone plate shaft part. The bone plate provided by the invention belongs to an innovation for the bone plate for the distal femur, therefore, the problem that when the existing bone plate is implanted from the outer side of the distal femur, the fixation for the condyle fracture on the inner side of part of the distal femur is not firm is solved, and the fracture blocks on the inner side of the distal femur can be effectively and firmly fixed, so that the heal of the fracture blocks on the inner side is promoted, and therefore, the bone plate has extremely good promotion and utilization values in the industry.

The invention relates to a high-strength double-wall inclinometer casing for inclined displacement measurement. The high-strength double-wall inclinometer casing comprises a plurality of measuring pipe fittings, a plurality of pipe fitting connecting pieces and an axial pressure trigger self-opening type anchor hook base. The measuring pipe fittings are connected through the pipe fitting connecting pieces, the axial pressure trigger self-opening type anchor hook base is connected with the measuring pipe fitting which firstly conducts hole sinking, the measuring pipe fittings are provided with inner walls and outer walls, four concrete filling cavities of inner and outer pair arc structures are formed by the inner walls and the outer walls, a plurality of holes are formed in the outer walls, when the inclinometer casing is submerged in the bottom of drilled holes, pressure is exerted in the axial direction, the axial pressure trigger self-opening type anchor hook base is opened and is anchored to the pedestal rock, and when back filling is carried out on concrete, cement paste enters the concrete filling cavities through the holes. The inclinometer casing has the strong capability of resisting tension and pressure, resisting bending and resisting torsion, the compatible deformation capability of the inclinometer casing and the surrounding rock-soil layer is improved, the upward buoyancy of serous fluid on the inclinometer casing is reduced, and a base of the inclinometer casing and the bed rock are in the fixed connection state all the time.

The invention discloses a sealing device and a condensing unit of an evaporative cooling asynchronous motor stator and manufacturing methods thereof. The stator comprises a stator core and a stator winding which are mutual connected. The sealing device comprises a sleeve, two cavity side walls and two cavity connecting walls, wherein the sleeve is connected to an inner circle surface of the stator core; the outer edges of each cavity side wall are connected to an enclosure of an asynchronous motor in a seal mode; the outer ends of each cavity connecting wall are connected to the cavity side walls, and the inner ends of each cavity connecting wall are connected with the stator core along with the bending shape of an end part of the stator winding; and the sleeve, the two cavity side walls,the two cavity connecting walls and the enclosure form a stator seal cavity. In the invention, the unnecessary end part space is eliminated, so that the volume of the stator seal cavity is reduced, thus cooling medium liquids in the stator seal cavity are distributed reasonably, and the usage amount of the cooling medium is reduced therewith, thereby remarkably reducing the manufacturing cost of an evaporative cooling asynchronous motor, and improving the market competitiveness.

The invention provides a fixing structure for a rotating material chamber in a carbon extruder. The fixing structure comprises two stands, the rotating material chamber, two rotating arms, two positioning parts and two bolt parts, wherein the rotating material chamber comprises two trunnions; the two trunnions respectively pass through shaft holes of the two stands to install the rotating material chamber between the two stands rotationally; the two rotating arms are respectively and fixedly mounted on the parts, extending out of the two stands, of the two trunnions; the rotating material chamber does not do relative movement with the two rotating arms; each positioning part and each bolt part are arranged on one side, adjacent to the corresponding rotating arm, of each stand; each rotating arm comprises two positioning surfaces and two grooves; and each bolt part comprises a bolt. The rotating material chamber can rotate to contact the two positioning surfaces with the two sides of each positioning part, and when one positioning surface is contacted with one positioning part, one bolt can be inserted into one groove to fix the corresponding rotating arm.

The invention provides a disposable self-adaptive puncture avulsion sheath. The sheath comprises a sheath canal, canal plugs and a canal seat, the canal seat is formed by splicing two tearable parts, and a containing cavity is formed in the canal seat; the canal plug communicated with the containing cavity is arranged on each tearable part; the upper end of the sheath canal enters the containing cavity from a lower port of the containing cavity and is fastened through the canal plugs; and the top of the canal seat is of a Luer taper structure. By adopting the structure that the sheath canal is naturally cracked, the problem that the sheath canal needs to be punctured and replaced for many times when puncture needles and ablation needles of different models are used is solved, and puncture and ablation positioning is more convenient and efficient. The canal seat is connected with a puncture needle Luer taper, so that the stress is uniform and stable in the puncture process. The tail of the sheath canal shrinks and is in smooth transition to be attached to the puncture inner needle, puncture resistance is conveniently reduced, and puncture is facilitated. A canal seat groove and a canal seat groove buckle are fastened, so that the problem of mistaken tearing is solved. The sheath canal is fixed by pressing and riveting the canal plugs and the canal seat, so that the problem that the sheath canal is not firmly fixed is solved.

The invention discloses an environment-friendly water heater mounting mechanism and a using method thereof. The environment-friendly water heater mounting mechanism comprises a support and a water heater, the water heater is located in one side of the support, a limiting frame is slidably connected to the interior of one side of the support, a limiting groove and a clamping block are arranged on one side of the water heater, and the limiting frame is slidably connected with the clamping block; a groove hole is formed in the support, a limiting device mutually connected with the limiting groovein a clamped mode is rotationally connected into the groove hole, a positioning device located in the groove hole is integrally connected into the support, an adjusting device is rotationally connected to one side of the support, and the adjusting device is rotationally connected with the limiting device through a rotating block; and structures of the limiting groove and the limiting device are used for clamping and fixing the water heater. The problems that an existing mode of water heater fixing through screws is inconvenient, and the water heater is not firmly fixed due to screw looseningare solved, and the fixing effect on the water heater is better.

The invention discloses a wide-angle optical lens. The optical lens comprises a lens body and a lens cover, a fixing shell sleeves the lens body, and a lens fixing unit is arranged in the fixing shell; a sleeve is arranged outside the lens fixing unit, and a round base is arranged in the sleeve; positioning rods are arranged at the two ends of the radial line of the round base respectively, a sliding ring is arranged between the fixing shell and the sleeve, and the sliding ring is movably connected with the sleeve through threads; a fixed clamping ring is arranged in the sleeve, an elastic part is arranged outside the fixed clamping ring, and the elastic bottom is tightly fixed to the inside of the sleeve. The wide-angle optical lens can actively adjust the focal length of an internal lensaccording to the preference of a user so as to meet different photographing requirements.

The invention discloses a lightning-protection puncture ground clamp, which comprises a fixed ring, wherein a hollow cartridge is fixedly arranged at the bottom end of the fixed ring; a rotating shaft of which one end extends to the outside of the bottom end of the cartridge is movably arranged in the cartridge; locating mechanisms which are tangent with the rotating shaft are movably arranged at two sides of the cartridge; a winding blocking wheel is fixedly arranged on the rotating shaft; two parallel torsion springs are fixedly arranged in the fixed ring; a snap ring I and a snap ring II which extend to the outside of the fixed ring are fixedly arranged at one end of the two torsion springs respectively; and a clamping groove matched with the snap ring I is formed in the top end of the snap ring II. According to the lightning-protection puncture ground clamp, the snap rings are expanded by arranging the winding blocking wheel capable of rotating to pull a steel wire, the snap rings can be closed through use in cooperation with the torsion springs, and the lightning-protection puncture ground clamp can be more conveniently installed and used under the fixation of the locating mechanisms, does not fall off in use for a long period of time and is high in safety and convenience.