441results about How to "Improve fixation stability" patented technology

Fixation system for bone nails, with a connecting bar having plural through holes and at least one bone screw insertable into a through hole, wherein it has at least one filler body, insertable into a through hole, and means for fastening the filler body in the through hole.

A graft or prosthetic element suitable e.g. for replacing a tendon or ligament is fastened in a bone tunnel or blind opening with the aid of a fastener. In a first step, the graft or prosthetic element is press-fitted in the tunnel or opening by forcing the fastener into the opening or by positioning the fastener in the opening and then expanding it, wherein the fastener is in contact with the graft or prosthetic element and with the bone wall of the tunnel or blind opening. In a second step, the fastener is anchored in the bone wall of the tunnel or blind opening with the aid of a liquefiable material which is liquefied in the vicinity of the bone wall where it is in contact with the fastener and by making the liquefied material penetrate into the bone wall.

The invention relates to a method for preparing nano microcapsule water-based color paste. The method comprises the following steps of: fixing water-repellent dye which is fully dissolved in a polymeric monomer in cross-linked polymer nanoparticles in the molecular dispersion state and the dye aggregation phase state by a mini-emulsion polymerization reaction so as to obtain a pigment capsule core of a micro-capsule; and constructing a polymer shell, namely, a capsule wall with self-film forming property and self-crosslinking property at normal temperature on the surface of the capsule core by cladding polymerization reaction technology so as to obtain the nano micro-capsule color paste stably dispersed in a water medium. The nano micro-capsule water-based color paste of the invention cankeep excellent color property of the used dye and realize high durability (light resistance / weather resistance and storage stability), self-film forming property and self-crosslinking property at normal temperature; and the color paste is suitable for coloring with high-performance textile inkjet printing pigment ink, colored inkjet printing ink, water-based ink and coatings and is applied to color paste for a colored optical filter for manufacturing a liquid crystal display.

The invention provides a wood waterproof agent adopting a silicone emulsion, a method for preparing the wood waterproof agent, and a method for preparing waterproof wood by utilizing the wood waterproof agent. The method for preparing the wood waterproof agent comprises the following steps: first, preparing a silicone oil emulsion primary liquid which contains hydroxyl silicone oil, hydrogen-containing silicone oil, a surfactant, nano-silicon dioxide, micron-silicon dioxide and water; then, diluting the silicone oil emulsion primary liquid into silicone oil emulsions of different concentrations; and finally, adding a catalyst for uniform dissolution and mixing. When the silicone oil emulsion wood waterproof agent provided by the invention is utilized for vacuum-pressurization pretreatment of wood, the waterproof performance and size stability of the wood can be improved, the hygroscopicity of the wood can be reduced, and the contact angle between the treated wood surface and water is larger than 140-150.

The invention discloses an electric balance car which comprises a car body, wheels, a drive motor used for driving the wheels, a power supply used for providing power, a circuit board and a controller, wherein the circuit board is provided with a sensor. The controller is electrically connected with the circuit board, the power supply and the drive motor. The car body comprises an upper shell, a middle shell, a lower shell, pedals and bottom plates. The upper shell comprises a first upper shell body and a second upper shell body which are symmetrically arranged. The middle shell comprises a first middle shell body and a second middle shell body which are symmetrically arranged. The lower shell comprises a first lower shell body and a second lower shell body which are symmetrically arranged. The middle shell is located between the upper shell and the lower shell. The number of the bottom plates is two. The bottom plates are arranged at the bottom of the first lower shell body and the bottom of the second lower shell body respectively. The controller is fixedly installed between the first lower shell body and the first middle shell body. The power supply is fixedly installed between the second lower shell body and the second middle shell body. The bottom plates are arranged corresponding to the fixing positions of the controller and the power supply respectively and corresponding to the sizes the controller and the power supply.

The invention relates to an automobile painting overturn frame. It solves the problems of unreasonable design and the like in the prior art. The car paint overturning frame includes two symmetrically arranged main supports and the two main supports are connected by connecting rods, and each main support is respectively provided with a vertical support tube and a vertical support tube whose lower end is inserted into the vertical support tube. The lifting column is provided with a rolling contact structure between the lifting column and the vertical support tube, and the upper end of each lifting column is respectively provided with a horizontal fixed tube and the lifting column or the fixed tube is connected with the lifting drive mechanism, The paint spray stand also includes two symmetrically arranged lifting frames, each of which is connected with a rotating shaft inserted in the fixed pipe and capable of rotating relative to the fixed pipe, and is provided between the rotating shaft and the fixed pipe. A locking mechanism capable of locking the rotating shaft and the fixed tube in the circumferential direction when the rotating shaft rotates to a set position. The advantage of the present invention is that it can improve the smoothness of lifting.

The invention relates to the technical field of integrated circuit manufacture and packaging, and discloses a fingerprint identification device and a fingerprint identification assembly with a mould pressing protection layer. In the invention, a mould pressing mode can be adopted to form a thinner protection layer, the protection layer is formed on the surface of a fingerprint identification chip to become one part of the fingerprint identification device without forming a lens for protection subsequently, so that, technical steps are reduced. Since the protection layer formed in the above way can be thin, the attenuation of a fingerprint signal after the fingerprint signal passes through the protection layer is reduced, the sensitivity of the fingerprint identification chip is enhanced, and fingerprint identification efficiency is improved.

The invention relates to the technical field of a neurosurgery sickbed tool, in particular to a neurosurgery sickbed auxiliary device. The neurosurgery sickbed auxiliary device comprises a support seat and a clamping assembly. The neurosurgery sickbed auxiliary device provided by the invention has the advantages that the operation is simple; the fixing stability on the head is high; the head of apatient is put between two clamp plates; a screw rod is rotated so that the screw rod horizontally moves; the screw rod and a connecting rod are rotationally connected, but the connecting rod is limited by the hinging of the clamping plates, so that the clamp plates can only be driven to realize the opening and closing; therefore the head is fixed and clamped; by considering the condition of hot weather in summer, a fan is arranged in the support seat; and the support seat is used as a draft cavity, the air is blown to the head part of the patient from an air outlet so as to achieve the summerheat relieving and temperature lowering effects.

The invention discloses an image acquisition device for mechanical design. Specifically, the invention relates to the field of image acquisition, The device comprises a multi-angle adjusting device, the multi-angle adjusting device comprises a collecting box; a supporting rod is arranged at the bottom of the collecting box; universal wheels are fixedly arranged at the bottoms of the supporting rods; A groove is formed in the bottom of the inner side of the collecting box, a sliding groove is formed in the inner wall of the groove, a sliding plate is arranged in the groove and slidably connected with the groove, sliding blocks are arranged on the front face and the back face of the sliding plate and slidably connected with the sliding groove, a rotating shaft is fixedly arranged at the topof the sliding plate, and a rotating disc is fixedly arranged at the top of the rotating shaft. By arranging the multi-angle adjusting device, the spotlight can carry out fixed-point illumination on the mechanical design drawing, then an image is sent to the display screen to be displayed, the influence of external light rays is effectively avoided, accurate image collection is effectively carriedout on the drawing image, multi-directional adjustment can be carried out on the shooting angle and height, and the shooting precision is improved.

The invention relates to the field of transmission line connection, and particularly relates to a J-shaped wire clamp operating member. The J-shaped wire clamp operating member comprises a main body,a sleeve operating rod and a supporting rod, and is characterized in that the main body is provided with a wire clamp clamping mechanism, the wire clamp clamping mechanism comprises a guide block fixed on the main body, a fixing base, a guide rod hinged with the fixing base, a connecting arm hinged with the guide rod, a guide column connected with the connecting arm, a clamping portion and a supporting portion, the clamping portion is attached to the wall of the main body and penetrates through a clearance of the guide block, the main body is provided with two lead pressing mechanisms, each lead pressing mechanism comprises a fixing bracket, a connecting rod hinged with the fixing bracket, an operating rod hinged with the fixing bracket and the connecting rod, a tightening bolt which is inthreaded connection with the connecting rod and a lead pressing block arranged on the tightening bolt. The J-shaped wire clamp operating member can operate under an electrified condition, is simple to operate, can be operated by a single person and is not restricted by the terrain. The J-shaped wire clamp operating member is wide in application range, improves the working efficiency and greatly improves the safety of workers.

Disclosed is, for example, a fixation device of fixing a resin-containing fine particle, the fixation device being configured to foam a fixation fluid including at least a softening agent configured to dissolve or swell at least one portion of a resin to soften the resin-containing fine particle including a resin, a foaming agent, and water, and to provide a foamed fixation fluid to the resin-containing fine particle, the fixation device including a first storage part configured to contain a softening agent fluid including at least the softening agent, a second storage part configured to contain a foaming agent fluid including at least the foaming agent, and a mixed foamed fixation fluid producing part configured to mix and foam both fluids contained in independent states in the storage parts to produce the foamed fixation fluid.

This invention relates to a non-invasive patient immobilisation assembly for immobilising a body part of a patient and for at least temporarily fixing the position thereof. The immobilisation assembly comprises a rigid template (1) made of a thermoplastic material. The template is thermoformed or otherwise moulded in such a way that the inner surface conforms to and contacts the body part to be immobilised along a contact surface area between the template and the body part. The contact surface area corresponds to at least part of the inner surface of the template. The immobilisation assembly also comprises a fixation plate (3, 12, 13) and connecting means (10, 11, 14, 15, 16) for connecting the template (1) to the fixation plate (3, 12, 13) in view of fixing the position of the template and the body part with respect to the fixation plate. The template (1) is provided to exert a fixation force of a preset value to the body part covered by it along the contact surface area by exerting a pulling force pulling the body part towards the fixation plate (3, 12, 13) with the aim of restraining the displacement of the body part within the template within defined limits. The assembly further comprises means (5, 6, 7, 17, 18) for adjusting the fixation force exerted by the template to the preset value.

The invention provides an optical module. The optical module comprises a circuit board, and an array waveguide grating, a reflector, and a PD array reception chip arranged on the circuit board, the array waveguide grating is connected with the reflector, the PD array reception chip is electrically connected with the circuit board, the PD array reception chip is used for receiving light transmittedby the array waveguide grating and emitted by the reflector, the array waveguide grating and the reflector are arranged opposite to the circuit board in a height direction of the circuit board, the circuit board is provided with a sunk groove arranged along the height direction of the circuit board, the array waveguide grating is arranged opposite to the sunk groove in the height direction of thecircuit board, and the array waveguide grating is fixedly arranged in the sunk groove. The circuit board is provided with the recessed sunk groove along the height direction of the circuit board so that the coupling space of the array waveguide grating and the reflector in the height direction can be increased, the distance from the bottom surface of the reflector to the PD array reception chip is shortened, the coupling performance of a receiving end is enhanced, the sunk groove can increase the space, used for fixing the array waveguide grating, of the circuit board, and the fixing stability of the array waveguide grating is improved.

The invention belongs to the field of biological materials, and particularly relates to an anticoagulant composite hollow fiber membrane and a preparation method thereof. The fiber membrane comprisespolyethersulfone, maleylated chitosan and a water-soluble polymer pore-forming agent, wherein the polyethersulfone is in a porous grid framework structure, and after being modified by the maleylated chitosan, the biocompatibility of the polyethersulfone is increased, the platelet aggregation is reduced, and the anticoagulant performance is improved; by adding the water-soluble polymer pore-formingagent, on one hand, the inner diameter, pore diameter and porosity of the fiber membrane can be adjusted, so that the permeability of the fiber membrane is controlled; on the other hand, the water-soluble polymer pore-forming agent is embedded in the porous grid framework structure and is matched with the maleylated chitosan, so that the stability is good, the water-soluble polymer pore-forming agent is not easy to elute and can be used for a long time. The fiber membrane is used as a dialysis membrane to carry out hemodialysis on a patient without using heparin, so that the diseases such asosteoporosis, low coagulation performance and the like of the patient are avoided. The preparation method is simple and suitable for industrial production.

The invention relates to a medical pedicle screw component with a telescopic double thread and capable of resisting pullout. The medical pedicle screw component with the telescopic double thread and capable of resisting the pullout is characterized in that a thread control shaft is arranged in a hollow cavity of a nail body, the thread control shaft is matched with connection rods, the connection rods are connected with telescopic screws, and the telescopic screws are arranged in a plurality of holes formed in the outer wall at the front end of the nail body. Furthermore, the cross section of the thread control shaft is of a butterfly structure, the thread control shaft comprises a middle shaft and a first support body and a second support body which are symmetrically arranged along the center line of the middle shaft, two slide pieces matched with the connection rods are fixed on the outer side of each of the first support body and the second support body, the cross section of each slide piece is in a crescent shape, the two slide pieces on each of the first support body and the second support body are oppositely arranged, and therefore rising and falling of the telescopic screws are adjusted by rotating the thread control shaft, unscrewing of threads is achieved by rotating the thread control shaft, stability of internal fixation of a spine is improved when bone rarefaction is cured or secondary screw placement is performed for revision, and occurrence rate of loosening or even detachment is reduced.

The invention discloses a computer network controller fixing device which comprises a base, a reset spring, a gear, a fan and an air storage bag, a guide cylinder is fixed to the middle of the inner side of the base through a bolt, a guide rod is arranged on the outer side of a movable disc, a sliding groove is formed in the upper surface of the base, and a connecting shaft is connected to the upper end of a first clamping plate through a bearing. The outer side of the connecting shaft is sleeved with a movable plate, a rubber block is bonded to the surface of the movable plate, a fan is fixedto the outer side of a third clamping plate through bolts, a connecting column is arranged on the inner side of the third clamping plate, and a hidden groove is formed in the outer side of the connecting column. According to the computer network controller fixing device, the multidirectional synchronous clamping and secondary limiting can be conducted on the computer network controller through the gravity effect of the computer network controller, the fixing stability of the computer network controller is effectively improved, and the computer network controller can be conveniently disassembled and overhauled in the later period; and meanwhile, effective heat dissipation and dust prevention can be carried out on the computer network controller.

The invention discloses a detachable undercarriage and a quadcopter. The undercarriage comprises an undercarriage main body, wherein a positioning post, a first button position, a second button position and surrounding ribs are arranged on the undercarriage main body; the surrounding ribs are fixedly connected with one another around the side of the undercarriage main body and form a containing groove with the undercarriage main body in an encircling way; a notch is formed in one side of the containing groove; the first button position and the second button position are respectively fixed on the surrounding ribs and are opposite to each other; the positioning post is positioned at the notch and is fixed on the undercarriage main body; two symmetrical clamping grooves are formed in two sides of the undercarriage main body; the two clamping grooves respectively correspond to the first button position and the second button position and are positioned below the surrounding ribs; an opening is formed in one end of each clamping groove; and the groove body of each clamping groove is transversely arranged. The undercarriage disclosed by the invention is convenient to assemble and detach by adopting a clamping mode, the stability performance is good by virtue of a crosswise fixing mode, and the undercarriage has a good shake-proof effect.

The invention relates to a circuit board card supporting member. A supporting stand includes a pedestal. A screw is vertically arranged on the pedestal. At least one board card fixing device sleeves the screw. The screw is provided with a limit nut. The board card fixing device is arranged between the limit nut and the pedestal. An extension spring sleeves between the board card fixing device and the pedestal. Auxiliary springs are arranged among the board card fixing devices. The board card fixing device includes an extension stand. A clamping plate fixing mechanism is arranged on the extension stand, and includes two clamping plate. One of the clamping plates is fixed on the extension stand. The two clamping plates are connected via an expansion screw. One end of the expansion screw is provided with a limit nut, and the other end of the expansion screw is connected to a cam block in a rotatable manner. A rotating rod is fixedly arranged on the cam block. The two clamping plates are arranged between the limit nut and the cam block, and are each provided with a long strip board card clamping bar.

The invention relates to the field of garden tree supporting devices, in particular to a righting device capable of preventing garden trees from growing askew. The righting device comprises a fixing ring, a mounting structure, a supporting structure, an anti-locking structure, an anti-skid structure and a fastening structure. By installing the supporting structure, the device can be suitable for different landforms, namely that the device can right a tree growing askew in different landforms by adjusting the supporting structure, and thereby, the applicability of the device can be increased; moreover, by adjusting the supporting structure, unidirectional supporting adjustment can also be performed on a trunk, and thereby, the trunk can be better prevented from growing askew; the anti-locking structure acts on the anti-skid structure, and thus, the supporting structure can be further fixed during growth of the trunk to avoid that support of the supporting structure is not firm enough due to the fact that the diameter of the trunk is excessively large; and by installing the anti-skid structure, the device can further have a more powerful ground grip, and thereby, the situation that the trunk slants due to strong wind can be avoided.

The invention discloses a method for repairing arsenic pollution soil by nano zero-valent iron and bacteria. The method for repairing the arsenic pollution soil by the nano zero-valent iron and the bacteria comprises the following steps that Pseudomonas putida strain Mn B1 (ATCC 23483) is selected, the strain is enriched and cultured in an enrichment medium, the strain is inoculated into a culturemedium containing divalent manganese to be cultured to obtain active metabolites, the active metabolites and green synthesized nano zero-valent iron are added into arsenic pollution soil, and uniformly stirring is carried out to enable active manganese oxides, the zero-valent iron and trivalent arsenic or pentavalent arsenic in the soil to generate a series of physics-chemical reactions, and arsenic in soil can be effectively fixed. The method for repairing the arsenic pollution soil by the nano zero-valent iron and the bacteria has the advantages of short repair time, high efficiency, stableeffect, large treatment range, no secondary pollution and the like.

The invention relates to the field of unmanned aerial vehicle (UAV), and especially relates to a UAV fixed point hover system and method which can be used in indoor environment. The system comprising UAV UAV flight controller, fixed point hover control module and UAV motor module. UAV flight controller is used to control the flight of UAV; fixed point hover control module is used to control fixed point hover in UAV flight; motor module is used to change the flight motion state of UAV. The system provided by the invention includes a UAV system and method for UAV flight control, motor and fixed point hover control module. In fixed point hover control module, texture features are used to obtain effective areas, compared with the traditional fixed-point optical flow method, the computation is reduced. Then optical flow field is calculated by using optical flow method for above effective areas, to obtain the information of control acceleration.

The invention relates to a convenient monitoring device with a dust removal function based on a 5G network. The device comprises a camera, a mounting block, a mounting box, a dust removal mechanism, abaffle and two mounting mechanisms, the mounting mechanism comprises a motor, a worm, a worm gear, a rotating shaft, a rotating rod, a swing rod, a fixing rod, a first bearing, a second bearing, a connecting assembly and two limiting assemblies. The dust removal mechanism comprises an air pump, an air inlet pipe, a hose, a nozzle, a supporting shaft and a transmission assembly. According to the convenient monitoring device with the dust removal function based on the 5G network, through the installation mechanism, the function of fixedly installing the camera is achieved, the installation convenience is improved, through the dust removal mechanism, the function of removing dust from the camera is achieved, the probability that dust adheres to the camera is reduced, and the monitoring effect is improved.

The invention provides an oil fume purifier and a manufacturing method thereof. The oil fume purifier comprises a shell, anode plates and cathode lines, wherein the anode plates and the cathode lines are mounted in the shell; each anode plate takes the shape of an encircled cylinder; one cathode line is positioned at the middle of each cylindrical anode plate; an air inlet and air outlet which are used for oil fume intake and exhaust are respectively arranged in the two ends of each cylindrical anode plate; and the anode plates are formed by spicing folded plates. By adoption of the above structure, the oil fume purifier has the advantages that the uniformity of the electric field strength is good, the structure is stable and reliable, the mounting is convenient, and cleaning dead angles are avoided.

The invention provides a dustproof protection device for a rare earth permanent magnet synchronous motor. The dustproof protection device includes a motor body, wherein a dustproof protection mechanism is fixed on the motor body; a support mechanism is welded and fixed at the lower end of the motor body; the support mechanism is located under the dustproof protection mechanism; the dustproof protection mechanism includes upper snap rings, lower snap rings, a connection strip block, micro fans, an ear plate, an arc guide rail, a dustproof net 1, elastic rubber sleeves, threaded rods, nuts, a handlebar and a dustproof net 2; and the support mechanism comprises a hollow plate, a base, an open slot 1, a connection plate, an open slot 2, limiting blocks, a support plate, a telescoping plate, alimiting groove opening and a through hole. Compared with the prior art, the dustproof protection device for a rare earth permanent magnet synchronous motor has the following advantages: achieving theaim of dustproof and shock absorbing protection, improving the use effect, facilitating carrying, improving the heat dissipation effect, achieving the aim of height adjustment, and expanding the fixed range so as to improve the fixing stability.

The invention provides a vehicle and a body structure thereof, the body structure comprises a front anti-collision beam (6), a front longitudinal beam and a connecting plate connecting the front anti-collision beam (6) to the front longitudinal beam; the body structure also includes: an extension structure used for being connected with a top side beam (10) of a front wheel cover; a reinforcement piece (9) connecting the extension structure to the connecting plate; wherein, the reinforcement piece (9) is connected with the front longitudinal beam. The body structure disperses the impact force in high-speed collision, effectively reduces the deformation degree of the front longitudinal beam, reduces the impact effect, and then reduces the deformation of the passenger compartment of the vehicle. In addition, the impact force can still be transmitted to the top beam of the front wheel cover through the connecting plate, the reinforcement piece and the extension structure when the collisionposition is on the outside side of the front longitudinal beam, and the impact force is transmitted to the front longitudinal beam through the reinforcement piece, and the energy absorption failure can be effectively avoided and the safety can be improved.

The invention relates to a power distribution station motor stator core fixing device, including a chassis seat, a support rod, an annular guide rail, a rotary ball, a rotary disk, a driven gear, a power output mechanism, a limiting mechanism and a support fixing mechanism. The support rod is located between the chassis seat and the annular guide rail, the upper part of the rotary ball sleeves an annular groove on a bottom end face of the rotary disk, the lower part of the rotary ball is mounted in an annular guide groove on an upper end face of the annular guide rail, the driven gear is fixed on an outer side wall of the rotary disk, the power output mechanism is located at the left side of the driven gear, the limiting mechanism is located at the right side of the driven gear, and the support fixing mechanism is located right above the rotary disk. The power distribution station motor stator core fixing device provided by the invention can perform motion in space in directions of two degrees of freedom including translation and rotation, and thus can adjust the fixed height and position in a circumferential direction of a motor stator core, during adjustment of the position in the circumferential direction, friction force is small, the function of fixing the motor stator core is realized, the fixing firmness is high, and the stability is high.

The invention relates to a jig for bearing roller assembly, comprising a support, a bearing inner frame fixing seat is arranged in the middle of the support, the bearing inner frame fixing seat includes a plurality of elastically fixed friction bars, and bearing outer The frame pressing device; the bearing outer frame pressing device includes two sets of pushing mechanisms, the pushing mechanism includes a sliding block that is slidably connected with the support and a linear drive mechanism installed on the support for pushing the sliding block, on one of the sliding blocks A bearing outer frame supporting mechanism is provided, and a bearing outer frame pushing mechanism is arranged on the other sliding block; the bearing outer frame supporting mechanism includes two mirror-symmetrical clamping arms arranged on one of the sliding blocks, and the other sliding block The compression mechanism driven by air pressure on the upper body is also provided with a supporting frame on the two sliding blocks, and the supporting frames are movably connected by a sliding sleeve structure. The supporting frame is provided with two clamps for pressing The jacking screw of the tight arm is provided with a bar-shaped groove corresponding to the jacking screw on the clamping arm.