36results about How to "Avoid being unstable" patented technology

The invention discloses an easy-to-pre-maintain LED (light-emitting diode) display screen module structure, comprising a module backboard, wherein the module backboard is fixed with an LED display screen box body, and a PCB (printed circuit board) is fixed on the front end surface of the module backboard; an LED lamp is arranged on the PCB; the easy-to-pre-maintain LED display screen module structure is characterized in that a plurality of accommodating spaces for accommodating magnetic fixing elements are formed in the module backboard; a groove which is used for clamping and limiting is formed in at least one wall surface of each accommodating space; the depth of each groove is 0.1-0.5mm; an insulating layer is also arranged between the module backboard and the PCB. The easy-to-pre-maintain LED display screen module structure has the advantages of being simple, stably fixed with the LED display screen box body, and convenient to install and dismantle.

The invention discloses an ultrasonic water purification component easy to manufacture. The ultrasonic water purification component includes a casing; the casing is internally successively provided with an ultrasonic purification layer, an activated carbon adsorption layer and a cobble layer from bottom to top, wherein the ultrasonic purification layer, the activated carbon adsorption layer and the cobble layer communicate with each other; the bottom of the ultrasonic purification layer is sealed with water filter paper; the inner wall of the ultrasonic purification layer on the water filter paper is provided with a limiting block; the ultrasonic purification layer communicates with the activated carbon adsorption layer through a filter gauze; the cobble layer communicates with the activated carbon adsorption layer through a filter port, and the filter port is provided with a tea bag filled with a slow-release water treatment material, wherein the slow-release water treatment material comprises ore. Based on ensuring the characteristic of a simple structure of a homemade water purifier, a water purification structure is improved, and the improved structure is used for successively filtering, adsorbing and removing mites; at the same time, the slow-release water treatment material is added, is easy to dismount and mount, and the problem that the production cost of a conventional homemade water purifier is relatively high is solved.

The invention discloses a drawing display device for outdoor architecture design. The drawing display device comprises bases, support frames and slant support frames; the support frames are located atthe upper ends of the bases, the slant support frames are located at one sides of the support frames, a drawing introduction nameplate is arranged at the lower ends of one sides in the support frames, and located above the bases, and a lining plate is arranged at the upper end of the drawing introduction nameplate. By means of the drawing display device for the outdoor architecture design, permanent magnets, wind shield plates and slide rods are arranged, to-be-displayed drawings can be magnetically attracted, installation and detachment are facilitated, the drawings are conveniently displayed, and the displayed drawings can be subjected to wind shielding, and are conveniently fixed; it is prevented that the drawings are fixed unstably when the wind blows heavily, the inclined angle of adisplay frame can be adjusted, the drawings are conveniently fixed according to different inclination requirements, and the drawing display device has certain practicability and brings a better usingprospect.

The invention discloses an auxiliary device for improving rudder blade machining precision. The auxiliary device comprises a cross plate; an extensible alignment device is fixedly connected to the topof the cross plate; a box body is fixedly installed on the extensible alignment device; a rudder blade taper hole machining device is fixedly connected to the top of the box body; an air cylinder isfixedly connected to the inner bottom of the box body; a sliding rod is fixedly connected to the top of the air cylinder; a baffle is fixedly connected to the top of the sliding rod; and extensible rods are slidably connected to four sides of the outer wall of the box body. According to the device, through the mutual matching effect of the box body, the extensible rods, extrusion plates, the sliding rod, a sliding block, fixed plates, compression springs and the air cylinder, the air cylinder push up the sliding rod, the sliding block moves along the sliding rod, then the extensible rods drivethe extrusion plates to move outwards, the extrusion plates clamp the inner walls of rudder blades, inner holes of the rudder blades are rapidly aligned, the extensible alignment device is always located in the center position, and subsequent machining of rudder blade taper holes is facilitated.

The invention relates to a vertical guiding device for a piling machine. The vertical guiding device comprises a base, sliding blocks and a top post. Rolling wheels are connected to the lower end of the base. Sliding rails are arranged at the upper ends of the rolling wheels. The sliding blocks are distributed in the middles of the outer sides of the corresponding sliding rails. Hydraulic rods arecorrespondingly embedded into the tops of the sliding blocks. The top post is fixedly arranged on the tops of the sliding rails. An auxiliary rod is connected to the middle of the inner side of eachsliding rail. According to the vertical guiding device for the piling machine, through the arrangement of the base, the sliding rails and the top post, the base, the sliding rails and the top post form a structure in the shape like a Chinese character 'ji', and the base, the sliding rails and the top post are welded, so that the base, the sliding rails and the top post have good stability, the situation that the base, the sliding rails and the top post are unstably fixed, consequently collapse occurs among the base, the sliding rails and the top post, and the vertical guiding device cannot beeffectively used is prevented, and meanwhile a cylinder body is ensured to be vertically placed during use.

The invention discloses a mechanical arm for stem cell culture. The mechanical arm comprises an X-axis linear module and a Y-axis linear module arranged on the X-axis linear module; a first Z-axis linear module, a second Z-axis linear module, a third Z-axis linear module and a fourth Z-axis linear module are arranged on the Y-axis linear module; wherein the first Z-axis linear module is provided with a pipetting device, the second Z-axis linear module is provided with a bottle cap screwing mechanism, and the third Z-axis linear module is provided with a culture bottle clamping device; the pipetting device, the bottle cap screwing mechanism and the culture bottle clamping device can move in a three-dimensional space, so that relevant experiment operation can be conveniently carried out on culture bottles or reagent tubes in a space range covered by the motion trails of the X-axis linear module and the Y-axis linear module. The device is simple in structure and easy to operate, and meets the requirements of cell refinement and automatic culture.

The invention discloses a pipeline support assembly type pile foundation structure, and relates to the technical field of pile foundation structures. The pipeline support assembly type pile foundation structure comprises a pipeline, wherein a pipeline mounting device is fixedly connected to the outer part of the pipeline, an assembly supporting column is fixedly arranged below the pipeline mounting device, and a base is fixedly connected below the assembly supporting column. According to the pipeline support assembly type pile foundation structure, a limiting device and a limiting ring are additionally arranged, an upper supporting column and a lower supporting column cannot rotate relatively through the cooperation of a limiting column, a limiting hole, a positioning block and a positioning groove, a whole threaded rod is fixed and protected, so that the pipeline deformation caused by relative rotation of the threaded rod is prevented; a rotating supporting device is additionally arranged, so that the change of the pipeline mounting direction is simpler, the workload of changing the direction is reduced, and meanwhile, the situation that the support is not stably fixed due to frequent loosening of a foundation is avoided; and an upper bottom plate and a middle bottom plate are additionally arranged, so that the fixation of the whole pile foundation base is more stable, and shaking of the base after being fixed is avoided.

The invention relates to the technical field of applications of experimental mice to in-vivo experiments, and particularly discloses a novel mouse tail intravenous injection needle, a manufacturing method thereof and an experimental application. The novel injection needle is used for mouse tail intravenous injection. On the basis of an existing medical 25G syringe needle, bilaterally symmetric side wings are added downwards from the midpoint of the needle to manufacture the novel needle. The novel needle is used for mouse tail intravenous injection, so that mouse tail intravenous injection success rate can be greatly increased. Compared with the traditional medical 25G syringe needle, the novel needle has the advantages that the novel needle is used for performing tail intravenous injection experiments on the mice, needle angles and needle lengths can be effectively controlled, and punching failure or piercing of tail veins caused by incorrect needle angles is maximally avoided.

The invention discloses a pregnant and lying-in woman exerciser. The pregnant and lying-in woman exerciser comprises a mounting plate, moving units, lifting units and adjusting units, wherein a sliding groove is formed in the middle of the top end of the mounting plate; the lifting units are arranged at the four corners of the bottom end of the mounting plate; the four adjusting units are arrangedat the four corners of the top end of the mounting plate respectively; each adjusting unit comprises a supporting plate, a screw rod and a rotating wheel; the bottom end of each supporting plate is connected with one corner of the top end of the mounting plate; a screw hole is formed in the middle of each supporting plate and is in threaded connection with the corresponding screw rod; the rotating wheels are arranged at the outer side ends of the screw rods; the inner side ends of the screw rods are rotationally connected with the outer side surfaces of fixed blocks; each moving unit comprises the fixed block, a motor, a lead screw, a movable block and a mounting block; a groove is formed in the inner side surface of each fixed block; and the lead screws are rotationally connected to theinteriors of the grooves. The pregnant and lying-in woman exerciser is convenient to use, easy to operate, high in practicability and good in massage effect.

The invention discloses an electric automatization machining platform. Aiming at the problems that a product cannot be conveniently clamped, and the machining operation cannot be conveniently carriedout, the following scheme is provided. According to the scheme, the platform comprises a rectangular frame, a motor box is fixed to one side of the inner wall of the bottom of the rectangular frame through a bolt, a motor is fixed to the inner wall of one side of the motor box through a bolt, one end of an output shaft of the motor is in key connection with a transmission shaft, one end of the transmission shaft is located outside the motor box, one end of the transmission shaft is in key connection with a screw rod, a bearing is fixed to the inner wall of the side, away from the motor box, ofthe rectangular frame through a bolt, one end of the screw rod is inserted in the circumferential inner wall of the bearing in a rotating mode, and the circumferential outer wall of the screw rod isin sliding connection with a sliding block. According to the platform, a coil in an electromagnetic chuck is powered on to generate magnetic force, and the magnetic force passes through a magnetic conductive panel to tightly attract a workpiece in contact with the surface of the magnetic conductive panel, so that the workpiece is fixed; the coil is demagnetized after being powered off, so that theworkpiece is not adsorbed any more, and the workpiece is conveniently taken out; and therefore, the workpiece can be conveniently fixed and taken down.

The invention discloses a shock-proof heat dissipation device for an electric tool charger, which comprises lower clamping mechanisms, telescopic mechanisms and an outer tube, wherein four sets of lower clamping mechanisms are distributed at equal angles around the outer tube and are connected with the outer tube through the telescopic mechanisms, each lower clamping mechanism includes a lower clamping piece, a gasket and bumps, clamping ports of the four sets of lower clamping pieces are oppositely arranged, each telescopic mechanism includes a telescopic tube, a clamping spring and a fixed rod, the telescopic tube is a hollow tubular structure with one end being closed, the fixed rod is slidably inserted at the open end of the telescopic tube, the clamping spring is sleeved on the end, which is located inside the telescopic tube, of the fixed rod, the closed end of the telescopic tube is fixedly connected with the lower clamping piece, the end, which is located outside the telescopictube, of the fixed rod is fixedly connected to the upper edge of the cylindrical side surface of the outer tube. The shock-proof heat dissipation device for the electric tool charger has the advantages of reasonable structural design, practicability, reliability and the like, and can be generally popularized and applied.

The invention discloses a logistics device. The logistics device comprises a rectangular frame, a bottom plate and two side plates. The bottom plate is fixedly arranged on the bottom face of the rectangular frame. The two side plates are symmetrically arranged on the two symmetrical side faces of the rectangular frame, and the rectangular frame is internally provided with a plurality of partitions. Each side plate comprises cross bars, vertical rods and telescopic fixing devices, wherein the multiple cross bars and the multiple vertical rods are perpendicularly arranged to form a net-shaped structure, and the multiple telescopic fixing devices are fixedly arranged at the positions of intersection points of the cross bars and the vertical rods. Cargoes are arranged in cavities formed by thepartitions and the side plates, and position fixing is achieved through the oppositely arranged telescopic fixing devices exerting inward prestressing force. According to the logistics device, a logistics box is divided into the rectangular frame and the side plates, the side plates are provided with the telescopic fixing devices, when the logistics device is used, the telescopic fixing devices can be adjusted according to the sizes of express boxes in the logistics box, the two side plates clamp the express boxes, and therefore the situation that the express boxes are fixed unstably is avoided.

The invention discloses a fracturing pry. The fracturing pry comprises a main body; a supporting column is connected to the bottom end of the main body; a bottom plate is connected to the bottom end of the supporting column; a fracturing head is arranged on the left side of the main body; a connecting flange is installed on the right side of the fracturing head; a first fracturing valve is installed on the right side of the connecting flange; the top of the first fracturing valve is connected with a fixed disc; a connecting disc is arranged at the top end of the fixed disc; a motor is arrangedat the top end of the connecting disc; a second fracturing valve is arranged on the right side of the first fracturing valve; and a third fracturing valve is arranged on the right side of the secondfracturing valve. By arranging a lead screw, the motor is moved to the upper portion of the fixed disc, the connecting disc drives four L-shaped clamping blocks to move into corresponding installationgrooves, the lead screw is rotated, the lead screw drives the transversely-adjacent L-shaped clamping blocks to move into clamping grooves through the installation grooves, and the L-shaped clampingblocks fix the motor through a clamping structure formed by the L-shaped clamping blocks and the clamping grooves.

The invention discloses a welding jig for an exhaust manifold heat dissipation auxiliary fixing frame. The welding jig comprises a fixing part, a connecting part and a compressing part all of which are sequentially connected. The fixing part is provided with a guiding groove, the guiding groove is internally provided with a moving block, a first threaded rod penetrates the moving block, the moving block and the first threaded rod are screwed, the moving block can move along the first threaded rod, and the moving block is provided with a fixing plate. A baffle is arranged at one end of the guiding groove. The compressing part comprises a guiding plate, a second threaded rod penetrates the guiding plate, the guiding plate and the second threaded rod are screwed, and a compressing plate is arranged at the end, far away from the guiding plate, of the second threaded rod. According to the welding jig, the fixing part is arranged on a workbench, the problem that during manual welding, fixing is instable, and shaking occurs easily can be solved, meanwhile, the operator can be prevented from being hurt, the movement locus of the compressing plate is fixed, shaking is not prone to occur, and the position of the compressing plate is adjusted conveniently.

The invention discloses a liquid crystal display which is convenient for rotating angle, which comprises a base, a groove, a rubber pad and a liquid crystal display screen, one side of the base is connected with a support column, and the side of the support column away from the base is fixed with a connecting block A rotating block is arranged outside the connecting block, wherein a wedge is fixed on a side of the rotating block close to the connecting block, and a mounting plate is fixed on a side of the rotating block away from the connecting block. The liquid crystal display that is convenient to rotate the angle is provided with a rotating block, which pushes the liquid crystal display screen, and the liquid crystal display screen gives a force to the rotating block. Drive the liquid crystal display to rotate freely on the connecting block to adjust, and the rotating block passes through the engaging structure formed by the connecting block, which is convenient for fixing the angle of the liquid crystal display after adjustment, and at the same time, it is convenient for people of different heights to watch, which enhances the ability to adjust the liquid crystal display The practicality and user experience of the screen.