51results about How to "Achieve double fixation" patented technology

The invention provides a high-precision semi-automatic printer. The high-precision semi-automatic printer comprises a pedestal, a supporting platform, an adjusting table, a worktable, a fixing plate, positioning pins, fixing bolts, a pressing plate, a bracket and a fixing frame, wherein the supporting platform is fixed on the pedestal; the adjusting table is fixed on the supporting platform; the adjusting table is provided with an X-axis adjusting knob and a Y-axis adjusting knob; the worktable is positioned on the adjusting table; the surface of the worktable is provided with a plurality of positioning holes; the fixing plate is arranged on the worktable; a plurality of positioning pins are arranged at one side of the fixing plate; a plurality of fixing bolts are arranged at the sides of the positioning pins. The high-precision semi-automatic printer provided by the invention is simple and small in structure, capable of saving floor area, adjustable in speed and convenient to operate.

The invention provides a vehicle window used for a railway vehicle and the railway vehicle. The vehicle window used for the railway vehicle comprises a window frame, an outer-layer glass board and an inner-layer glass board. A stair structure is formed on the inner side wall of the window frame. The outer-layer glass board and the inner-layer glass board are arranged on the corresponding step faces formed by the stair structure. Sealant is arranged between the outer-layer glass board and the stair structure and between the inner-layer glass board and the stair structure. The section of the sealant is of a Z-shaped structure. The window frame is further provided with connecting pieces which are provided with bolts. Due to the fact that the sealant of an integrated structure is arranged between the inner-layer glass board and the outer-layer glass board, and the cross section of the sealant is of the Z-shaped structure, the connection reliability and the sealing performance between the glass boards and the window frame can be effectively improved, meanwhile, the window frame is installed on a compartment through cooperation of the bolts and the structural sealant, double fixing is achieved, and the use reliability of the vehicle window is effectively improved.

The invention discloses a spring push rod mechanism and a rapid connection device and relates to the technical field of marine fluid loading and unloading special-purpose equipment. The spring push rod mechanism comprises a first core shaft, a second core shaft, a spring, a position-limiting rod, a ball head joint bearing and a joint bearing, wherein the position-limiting rod is connected betweenthe first core shaft and the second core shaft to make the position-limiting rod form concave-convex coordination with the first core shaft and make the position-limiting rod form fixed connection with the second core shaft at the same time, no matter how the first core shaft and the second core shaft move relative to each other, the position-limiting rod can always clamp the first core shaft, andloose separation between the first core shaft and the second core shaft is avoided. Compared with adoption of position limiting by a fan-shaped light groove, the structural strength of the position-limiting rod is stronger than that of the fan-shaped light groove, and the position-limiting rod can realize a better position-limiting effect; and by means of the second core shaft and the joint bearing in rotating connection, reduction of the rotation force and angle of the second core shaft is facilitated, the loose separation phenomenon occurring at the threaded connection positions between thefirst core shaft and the ball head joint bearing is improved, and bending deformation of the core shafts and the joint bearing is avoided.

The invention discloses a microchannel heat exchanger for an air conditioner of a passenger car. The microchannel heat exchanger for the air conditioner of the passenger car comprises collecting pipes, an installation support, flat pipes and edge plates, wherein a fixing device is arranged on the edge plates, the fixing device is a rectangular box, one side of the rectangular box is open, the rectangular box comprises a bottom surface, an upper installation surface, lower installation surface, a left supporting edge plate and a right supporting edge plate, installation holes are formed in the middle of the upper installation surface and in the middle of the lower installation surface, and clamping grooves are formed in the upper end and lower end of the left supporting edge plate and the upper end and the lower end of the right supporting edge plate; edge plate installation holes are formed in the upper surface and the lower surface of each edge plate at intervals, and the edge plate installation holes and the installation holes are identical and are all round or oval; the upper surface and the lower surface of each edge plate are inserted into the corresponding upper clamping groove and the corresponding lower clamping groove of the fixing device, the installation holes in the upper surfaces and the lower surfaces of the edge plates are made to be in butt joint with the installation holes in the upper installation surface and the lower installation surfaces of the fixing device, and then fixation is achieved through bolts and nuts. According to the microchannel heat exchanger for the air conditioner of the passenger car, fixing points are arranged on the edge plates of the heat exchanger, fixation in the width direction of a collecting pipe support and fixation in the length direction of the edge plates of the microchannel heat exchanger are achieved, and the strength and the reliability of the microchannel heat exchanger for the air conditioner of the passenger car can be guaranteed.

The invention discloses a junction device, including: a handle body with a hollow structure inside; a plastic stent, which is a nail shaped structure with a center bore, wherein, the diameter of the nail head of the nail shaped structure is larger than the diameter of the hollow port of the handle body and the plastic stent is inserted in the hollow core of the handle body; a metal connector, the shape of the inserted end of which is consistent with the shape of the center bore of the plastic stent. And the inserted end is a little bigger than the center port of the plastic stent. With the invention, the metal connector can be doubly fixed in the handle body, which strengthens the fixation effect. And the junction device of the invention has the advantages of simple structure and firm connection and can avoid the leakage of molten masses and maintain the beauty of products.

The invention provides a punching pile machine convenient for folding and moving, and relates to the field of road and bridge construction equipment. The problems that a falling position of an impacthead is prone to shifting under the influence of wind force in windy weather; when the impact head is fixed, fixing is usually conducted by a clamp, the disassembly is cumbersome, and diversified fixed structures cannot be adopted simultaneously to synchronously fix are solved. The punching pile machine convenient for folding and moving comprises a vehicle body, a telescopic arm is rotatably connected to the vehicle body. Because an elastic clamp pin is installed on a suspension head, the head end of the elastic clamp pin is of an inclined structure, the convenience of clamping installation between a suspension heat and the suspension head can be improved; and secondly, when a clamping arm and a clamping seat are clamped, the suspension head is in contact with the bottom end surface of theinner wall of the suspension seat, thus on the one hand, the clamping seat and the clamping arm can be used as second fixing and limiting structures for use, and on the other hand, the two clamping structures can be clamped or inserted for fixation at the same time.

The invention provides a fixing structure for bagging desulfurization catalyst finished products. The fixing structure comprises a base, a rod sleeve is fixedly connected with the top of the base through a bolt, a supporting rod is embedded in the top end of the rod sleeve, a fastening nut is connected with the outer wall of one side of the rod sleeve in a screwed mode through threads, a supporting seat is welded to the top end of the supporting rod, and a first side plate is fixedly connected to the outer wall of one side of the supporting seat through bolts. According to the fixing structure for bagging the desulfurization catalyst finished products, the two sides of a bag opening of a packaging bag can be clamped and fixed through movable clamping plates, double fixing of the bag opening of the packaging bag is achieved, and the fixing firmness is guaranteed; and the packaging bag and the desulfurization catalyst finished products in the bag can be supported through a lifting type supporting plate, the problem that the bag opening fixing position is loosened and falls off due to the fact that the packaging bag bears too large force is solved, and the fixing stability of the packaging bag is further guaranteed.

The invention discloses a brushless motor for a plant protection unmanned aerial vehicle. The brushless motor comprises a limiting plate and a brushless motor body. The brushless motor body is fixedlyinstalled at the top of the limiting plate, a protective cover is arranged outside the brushless motor body, the bottom of the protective cover is fixedly connected with the upper surface of the limiting plate, and a first rotating shaft is fixedly installed at the output end of the brushless motor body; a second rotating shaft is arranged at the end, away from the protective cover, of the firstrotating shaft, the outer ring of the second rotating shaft is fixedly connected with a propeller, and a first clamping mechanism is fixedly mounted in the end, close to the second rotating shaft, ofthe first rotating shaft. The brushless motor for a plant protection unmanned aerial vehicle is provided with the first clamping mechanism and a second clamping mechanism. The two mechanisms are usedtogether to realize double fixation of the propeller, so that the propeller is more stable to install, the structure is ingenious, the installation of the propeller is simple and clear, the operationmethod is more convenient, and the operation is easy.

The invention relates to the field of decoration, in particular to a movably-mounted wash basin bracket and a mounting method thereof. At least two wash basin bracket units are mounted on a wall belowa wash basin surface; each wash basin bracket unit is a triangular framework consisting of a wash basin surface fixing plate, a bracket supporting plate, a wall surface mounting plate and a wall bolt; the wash basin surface fixing plate is vertical to the wall surface mounting plate; the bracket supporting plate is connected with the wash basin surface fixing plate and the wall surface mounting plate in an inclined way; each wash basin bracket unit is mounted on the wall through the wall surface mounting plate; the wash basin surface is mounted on the wash basin surface fixing plate; the bracket supporting plate is a long slot-shaped plate with a U-shaped section; a sleeve is longitudinally arranged inside a long slot of the bracket supporting plate; the wall bolt is inserted into the sleeve; one end of the wall bolt is fixed to the end part of the bracket supporting plate; the other end of the wall bolt runs through the wall surface mounting plate and the wall and is positioned on the back surface of the wall. According to the technical scheme adopted by the invention, standard part production of the wash basin bracket unit can be achieved, the efficiency is improved, the cost isreduced, and the wash basin bracket unit achieves dual fixing and good firmness; in addition, the movably-mounted wash basin bracket is simple in structure and convenient to mount.

The catheter fixator comprises a bottom rod, anti-skid suction feet attached to the ground are fixed to the bottom end of the bottom rod, a horizontal limiting seat is fixed to the top end of the bottom rod, a rotating seat is rotationally connected to the interior of the limiting seat, and a mounting box is fixed to the upper surface of the rotating seat; the device comprises a mounting box, a stabilizing mechanism for fixing a guide pipe is arranged on the mounting box, two symmetrical side rods are vertically fixed to the upper surface of the mounting box, a top plate is fixed to the outer sides of the side rods, and an auxiliary mechanism for heating the guide pipe is arranged on the top plate. According to the catheter fixator for the gastrointestinal surgery department, first stabilizing assemblies in the stabilizing mechanisms are used for clamping the two sides of a catheter, clamping pieces can be limited after clamping, the situation that the stabilizing effect is affected due to the fact that a clamp moves after the catheter is stressed is avoided, and in order to further improve the stabilizing effect on the catheter, second stabilizing assemblies are used for fixing the catheter; the air bag expands after being inflated to be attached to the catheter again, so that the friction force between the air bag and the catheter is increased.

The invention provides a bearing protection paper pad for transmission shaft production, relates to the technical field of machining auxiliary supplies, and solves the problems that multiple fixing structures cannot be fixed together during winding, a winding fixing structure cannot be organically combined with a liquid blocking structure and an anti-skid structure, and the interception of oil stains and the rolling prevention of small parts cannot be implemented. The bearing protection paper pad for transmission shaft production comprises a top pad; and a bottom pad is adhered to the bottom end surface of the top pad. Protrusions are welded to the bottom end surface of the bottom pad in a rectangular array form, and are wavy structures; gaps are formed in each protrusion in a rectangulararray form; and the gaps formed in the rectangular array form jointly form a force unloading structure when the protrusions are rolled, so that on one hand, the wavy-structured protrusions can improvethe anti-skid capacity of the bottom pad in multiple directions, and on the other hand, when the device is rolled, the tensioning force of the protrusions can be eliminated through the notches, so that the bounce-off probability of the device after rolling is further reduced.