648results about How to "Fixed tightly" patented technology

A surgical screw system using a surgical screw that is at least partially bioabsorbable in vivo, the screw having a recess (or optionally recesses) in its head for receiving an inserter instrument, wherein the recess has a rotational symmetry around the longitudinal axis of the screw. The recess comprises an odd number of rounded lobes extending away from the center of the head. The inserter for the screw comprises a distal end that matches the shape of the recess in the screw and can be slidably engaged with the recess.

The embodiment of the invention discloses a backlight module and a display device, and relates to the field of display technologies. The backlight module comprises a light source, a light guide plate and a rubber frame used for packaging the backlight module. The backlight module further comprises a first optical film layer and a second optical film layer, wherein the first optical film layer is arranged on the surface of a light-emitting side of the light guide plate, and the second optical film layer is arranged on a light-emitting side of the first optical film layer. The rubber frame is provided with a protruded portion, part of the protruded portion is located between the first optical film layer and the second optical film layer to separate the first optical film layer from the second optical film layer. Thus, the backlight module can prevent relative movement between optical films and the light guide plate, and bright borders on edges of the backlight module can be avoided.

The invention relates to a negative pressure guide capturing type smooth and clean spinning device and belongs to the technical field of textile processing. A holding groove is formed in the working face of a heating component, a suction inlet is located in the inner wall of the holding groove, is communicated with a suction channel of the heating component and a channel of a base and is communicated with a suction flute through the base, negative pressure airflow is generated in the holding groove through the suction inlet, fiber at the edge of a fiber strand is guided to be tightly attached to the sliver body for capture, a movable cover board is movably installed on a mechanism on a cover board installation table through a hinge, connection of fine yarns is facilitated, it is ensured that negative pressure airflow enters only from the inlet end of the holding groove in the normal spinning process, and the negative pressure airflow is fully used for guiding and capturing the fiber and holding and winding fiber hairiness. Meanwhile, the ironing type smooth and clean spinning function and the airflow guide capturing type ring spinning function are combined, the fiber is captured more effectively, the fiber hairiness is eliminated more effectively, and the quality of finished yarns is improved. The negative pressure guide capturing type smooth and clean spinning device is reasonable in structure, convenient to operate and easy to use and popularize.

The invention relates to a superminiature voice coil motor comprising a front support, a rear support and a metal shell arranged between the front support and the rear support, wherein the metal shell is internally provided with a motion carrying seat capable of moving along the axes of the shell, the motion carrying seat is supported in the metal shell by leaning upon a front spring plate and a rear spring plate which are in flat shapes, the upper layer and the lower layer of the inner surface of the metal shell are respectively fixed with a first magnet set and a second magnet set, and magnets in the first magnet set and the second magnet set charge magnetism towards the radial direction of the metal shell; the outer surface of the motion carrying seat corresponds to the first magnet and the second magnet set and is fixed with a first annular coil and a second annular coil on the first layer and the second layer; after being electrified to generate polarity, the first annular coil and the second annular coil drive the motion carrying seat to move along the axes of the shell under the action of the magnetic force of the first magnet set and the second magnet set. The invention can reduce the integral size of the voice coil motor to the utmost extent, thereby realizing the subminiaturization of the voice coil motor.

The invention discloses a tension-compression coupled yielding energy-absorbing grouting anchor rod for large deformation of a surrounding rock and a working method thereof. The tension-compression coupled yielding energy-absorbing grouting anchor rod comprise a hollow grouting anchor rod, an anchor rod locking device, a plurality of yielding grouting devices and an energy-absorbing anchor head, wherein a protection sleeve is arranged on a rod body of the hollow grouting anchor rod, a plurality of first grouting holes are formed in the rod body, and the first grouting holes penetrate through the protection sleeve and are communicated with a drilling hole; the multiple yielding grouting devices sleeve the rod body of the hollow grouting anchor rod at intervals, the surfaces of the yieldinggrouting devices are provided with second grouting holes, the energy-absorbing anchor head is fixed to the end of the hollow grouting anchor rod, and the anchor rod locking device is arranged at the free end of the hollow grouting anchor rod. By means of the yielding grouting devices, the real-time reinforcement support at the initial stage of deformation of the surrounding rock is achieved, the step-by-step automatic yielding effect is also played, the large supporting resistance is provided for the anchor rod body through the energy-absorbing anchor head, and the technical problems of anchorrod failure and insufficient grouting caused by high stress and large deformation of the surrounding rock are solved.

Disclosed is a thermally shrinkable polyolefin film which comprises a mixed resin mainly composed of a polyolefin resin (A), a polylactic acid resin (B) and a resin (C) capable of improving the compatibility between the resin (A) and the resin (B) or has at least one layer comprising the mixed resin, wherein the ratio of the resin (A) to the resin (B) ((A) / (B)) is 99 / 1 to 70 / 30 by mass. The film has a thermal shrinkage ratio in at least one direction of 20% or higher as determined after immersing the film in hot water of 80 DEG C for 10 seconds, has a natural shrinkage ratio of less than 10% as determined after storing the film for 7 days under environment of 40 DEG C and 50% RH, is excellent in thermal shrinking properties and shrinkage finishing, and is reduced in natural shrinking. Also disclosed is a thermally shrinkable polyolefin label. Further disclosed is a container having the label thereon.

The invention provides a tester for testing fiber axial heat conduction performance. The tester comprises a clamp and a to-be-tested fiber contained in the clamp, wherein the clamp is of a hollow straight cylinder shape. The tester has the advantages that the filamentous fiber can be tightly fixed and allowed to have good straightness, and the tester can be well used for testing the fiber axial heat conduction performance. According to embodiment records, the tester is successfully used in laser flash analyzer detection, and the detected heat conduction coefficients of samples are respectively 156W / m.K, 0.7W / m.K and 52W / m.K.

A protective sports glove worn by athletes during training or for use in a combative event to protect against injury and increase performance (including but not limited to total force generation, grip strength, striking force and speed, muscular endurance, time to contraction, etc.). These gloves are engineered with a dorsal splint system and a cooperating adjustable dual strapping wrist tie system to secure the gloves to the contour of the hands, to ensure they remain tight and fixed, and to support the wrist from excessive bending. The dual strapping system with the dorsal splint system provides increased wrist / hand rigidity mirroring a tightness of hand wrap bandages for maximal bone and tendon support of the hands and wrists, and this novel tie system increases the transfer of force generation to the point of impact.

This invention provides a cutting tool having a cutting insert holder which has a lighter weight and can be produced at a lower cost than that made of aluminum. The base of the cutting insert holder, to which at least one cutting insert is fixed, is made of an amorphous plastic including from 30% to 60% of glass fiber. The cutting insert holder has at least one female-screw member, such as a screw thread coil (e.g. a HELI-SERT TM or Heli-Coil TM insert), which has a screw tap for securing an adjusting member, to which a cutting insert has been fixed, to the base by screw-driving of a hexagon socket head cap bolt. The female-screw member is fixedly embedded in the inner end of an insert-holding recess formed in the base.

The invention discloses a displacement extension clamping device for measuring axial tensile deformation of a steel cable at high temperature and a using method of the displacement extension clamping device. The displacement extension clamping device for measuring the axial tensile deformation of the steel cable at high temperature comprises an upper clamp, a lower clamp and a high-temperature extensometer, wherein each of the upper clamp and the lower clamp comprises a U-shaped tube clamp, a V-shaped claw, bolts, a base and high-temperature nuts; U-shaped tube clamps sleeve a sample; two ends of each U-shaped tube clamp are respectively connected with the two corresponding bolts; each V-shaped claw is further arranged on the corresponding base; the U-shaped tube clamps and the V-shaped claws oppositely fasten to clamp the sample; the high-temperature nuts are tightened through the bolts, so that the sample, the U-shaped tube clamps and the V-shaped claws cannot slide relatively; the high-temperature extensometer is provided with two extension rods; a blade contact is arranged at the top end of each extension rod; the extension rods are adjusted so that the two blade contacts can be respectively inlaid in wedge-shaped grooves formed in the surfaces of the top ends of the two U-shaped tube clamps; high-temperature deformation in a gauge length section of the sample is transmitted to the extension rods; and test data are recorded by the high-temperature extensometer.

The invention relates to a test device for the three-dimensional static rigidness of a tail end of a machine too. A power device adopts a hydraulic device with high rated load, a transmission device adopts a cylinder-type linear guide-rail pair structure which is high in transmission efficiency and reliable in structure, the structure is simple and compact, the force transmission efficiency is high, the loading process is smooth and stable, and a force transferring device is flexibly connected to the tail end of the machine tool through a spring, so that the additional displacement and the additional load formed by the external interference can be effectively absorbed, and the tail end structure of the machine tool can be effectively protected. A control system of the test device for the three-dimensional static rigidness of the tail end of the machine tool can automatically control the whole process of the loading, measurement and static rigidness calculation, is friendly to the interface and precise in control. The invention relates to a test method for the three-dimensional static rigidness of the tail end of the machine tool, the three-dimensional loading is realized by adopting a single-direction loading mechanism to be matched with the revolving function of the machine tool, the whole test process is controlled by adopting a control system device and the control system, the method is simple in operation, and the measurement precision is high.

The invention discloses a nanometer screen window for preventing PM2.5 and a method for preparing a screen window material. The nanometer screen window (NSW-2.5) is composed of a window frame, carbon non-woven fabrics and a nanometer filtering membrane, wherein the nanometer filtering membrane is made of dispersed nanometer acetate fibers, a plurality of nanopores with the pore diameter being 0.5-1 mum are formed, and the porosity of the nanometer filtering membrane is 85-98 percent. The NSW-2.5 can isolate particles with the aerodynamic diameter larger than 2.5 mum in the air and meanwhile keeps good daylighting and ventilation effects. The NSW-2.5 screen window is detachable and is convenient to wash. Moreover, as the nanometer filtering membrane is made of fiber materials, the NSW-2.5 screen window can be rolled and is convenient to store. The NSW-2.5 screen window belongs to the field of household environmental-protection equipment, has the advantages of being low in cost and easy to dismount and wash, realizes integrated mechanized production, and is more easily accepted by the market.

A method of manufacturing a semiconductor device includes (a) fixing a cover onto a semiconductor substrate so as to place a surface of the cover that includes a portion defining a first opening, face to face on a surface of the semiconductor substrate that includes an electrode and (b) applying an adhesive to the inside of the first opening.

The invention discloses an anchor chain sensor fixing clamp for an offshore platform based on screw fastening, which comprises inward inclining inner hexangular locking screw, a nylon self-locking nut, a disc retaining spring, a clamp frame, a screw-clamping plate connecting bearing, V-shaped guide clamping plate, a guide rail, sensor fixing hoops, a U-shaped positioning clamping plate and a positioning assistant magnet, and is characterized in that the screw-clamping plate connecting bearing is connected with the screw and the V-shaped guide clamping plate, the clamp frame is composed of a press-molding hollow corrugated sheet material, and the positioning assistant magnet is embedded in a groove at the inner side of the clamp frame. The advantages are that the anchor chain sensor fixing clamp is simple in structure and convenient to be assembled and disassembled, and assembly and disassembly of the whole clamp can be completed by an ROV remotely; the anchor chain sensor fixing clamp is accurate in positioning and tight and reliable in fixation, can ensure that a sensor and an anchor chain have no relative motion and relative acceleration therebetween and ensures normal and effective operations of the sensor.

The invention provides a light-emitting diode (LED) unit installing module which is used for achieving installation of an LED unit in application environment. The LED unit installing module (10) comprises a heat dissipation block (12) and a shell body (14) which is arranged outside the heat dissipation block (12), the LED unit is arranged on the heat dissipation block in an attached mode, and the shell body forms a connecting structure which is matched with a connecting structure in the application environment. The shell body in the process of forming of the shell body and the heat dissipation block form a whole. The invention further provides an LED lighting device using the LED unit installing module (10) and an automobile headlamp using an LED lighting device. The invention further provides a method manufacturing the LED unit installing module (10).

The invention discloses a multi-layer coextrusion device and an application method thereof. The multi-layer coextrusion device comprises a machine head, an active paying-off machine, a conductor paying-off disc, a dance wheel, a heater, a coextrusion machine head, a constant-temperature water tank, a traction device and a winding disc. The coextrusion machine head comprises a composite module, a shell, a front gland and a rear gland. The composite module comprises a die core supporting sleeve, a wire inlet positioning module, an inner conductor layer module, a PTC layer module and an insulation layer module. The PTC layer module comprises a PCT wrapping die and a sizing die. The position, at the PTC layer module, of the die core supporting sleeve is provided with a first annular boss. ThePCT wrapping die is provided with a first linkage part to be matched with the first annular boss, and the PCT wrapping die is in sliding connection with the sizing die. According to the multi-layer coextrusion device and the application method thereof, through the arrangement of a first gear set and a second gear set, reverse rotation of the PTC layer module and the insulation layer module is achieved, and fixation between a PTC heating body layer and a composite insulation layer is tighter.

The invention discloses a minimally invasive chest drainage tube and drainage surgery instruments confirming to human body anatomy characteristics. The drainage tube comprises a tube body which is sequentially provided with an outer section, a first bending part, a transition section, a second bending part and an inner section; a section between the outer section and the transition section is bent through the first bending part; a section between the transition section and the inner section is bent through the second bending part; at least a portion of the inner section is provided with an adhering arc section which is adhered to the inner wall of the chest. The minimally invasive chest drainage tube and the drainage surgery instruments confirming to the human body anatomy characteristics have the advantages of achieving minimal invasion of thoracic surgeries, enabling the drainage tube to be confirmed to the human body anatomy characteristics, effectively avoiding luminal stenosis and being good in drainage effect.

The invention relates to a solar greenhouse roof intelligent ventilation system and a control method thereof. The solar greenhouse roof intelligent ventilation system comprises a scissor fork type ventilation device, a ventilation opening sealing device and an intelligent control system. The scissor fork type ventilation device comprises a fixing support, a scissor fork frame, a ventilation opening push rod motor, a limiting sliding rail, a limiting pulley, a microswitch and a film fixing groove; the ventilation opening sealing device comprises a transfer rod push rod motor, a transmission shaft, a limiting bearing, a sealing rod, a transfer rod and a scissor fork type transmitter; the intelligent control system comprises a temperature sensor, a raindrop sensor, a touch screen, a PLC and a power adapter. On the basis of different requirements for temperature of different crops at different growth periods, whether ventilation is performed or not is judged not depending on a simple temperature threshold value; on the basis of environment data collected by the PLC according to the temperature and raindrop sensors, whether or not the effective accumulative temperature reaches the preset lower limit within the crop growth periods and whether it rains or not, the increase and decrease amplitude of the transient temperature and other factors are comprehensively considered, movement of the ventilation opening push rod motor and the transfer rod push rod motor is controlled, and therefore opening and closing of a ventilation opening are controlled.

The invention provides an interference screw for the department of orthopaedics. The interference screw for the department of orthopaedics comprises a head end, a threaded section and a tail end, wherein the head end, the threaded section and the tail end are fixedly connected in sequence; the outer surface of the head end and the outer surface of the tail end are smooth. The interference screw for the department of orthopaedics aims to overcome the defects in the prior art, is used for rebuilding and restoring an articular ligament, enhances connection firmness, reduces the cutting effect on muscle tendons and improves the treatment effect on the rebuilt ligament.

The invention discloses an unmanned aerial vehicle landing and recycling integrated mobile platform based on a six-degree-of-freedom hybrid mechanism. The unmanned aerial vehicle landing and recyclingintegrated mobile platform based on the six-degree-of-freedom hybrid mechanism comprises wheels, a power system, a posture adjustment system and a work platform system, wherein the wheels are placedat the bottom layer and are connected to the bottom power system; the power system is arranged at the sides of the wheels; the posture adjustment system is located at a lower portion, and comprises anupper three-degree-of-freedom plane parallel mechanism, a lower three-degree-of-freedom plane parallel mechanism, and an auxiliary platform; the work platform system comprises a folding and unfoldingplatform, a wireless charging module system, a wireless detection module and a radar device; the folding and unfolding platform is located on the upper side of the posture adjustment system; the wireless charging module system is arranged at the bottom of the folding and unfolding platform; and the wireless detection module is arranged on the upper surface of the folding and unfolding platform. The unmanned aerial vehicle landing and recycling integrated mobile platform based on the six-degree-of-freedom hybrid mechanism utilizes the posture adjustment balance of the hybrid mechanism, integrates the multi-function into one body, and realizes the precise posture adjustment; the folding and unfolding platform increases the working area; and the unmanned aerial vehicle landing and recyclingintegrated mobile platform based on the six-degree-of-freedom hybrid mechanism realizes the enduring charging and stable continuation of the journey, and has relatively low operation difficulty, relatively high safety and relatively strong stability.

The invention discloses a pile driver which comprises a work frame. A water tank is installed on the top of the work frame. A water pump is installed on the top of the water tank. A liquid outlet in one side of the water pump is connected with a pile hammer through a liquid pipe. The top of the pile hammer is connected with a pile hammer moving frame through a hydraulic hammer rod. The two sides of the pile hammer moving frame penetrate a pile frame and are connected with a lifting device in a pile frame inner cavity in the left side and a pulley of a pile frame inner cavity in the right side correspondingly. The bottom of the lifting device is connected with an output shaft of a lifting motor. By the adoption of the pile driver, through integrated matching of the lifting motor and the lifting motor, the pile hammer can be driven to move, and the pile driving work becomes more easily; and meanwhile, the water tank, the water pump and the liquid pipe are matched, a liquid head in an inner cavity of the pile hammer is matched, after the pile hammer is driven into the underground part, gluing liquid flows out through the liquid head, a pile body and the underground part are connected through the gluing liquid and can be connected more stably, and the pile driver is suitable for application and popularization.

The invention discloses an intelligent cardiovascular medicine clinical pulse detection device. The pulse detection device comprises a pulse detection device body and a detection probe connected withthe pulse detection device body, and also comprises a fixing mechanism used for fixing a wrist, and a positioning mechanism used for positioning the detection probe, the fixing mechanism comprises a base, a containing groove is formed in the top of the base, a support is fixedly connected to the top of the rear end of the base, and a first fixing groove is formed in the front face of the support.According to the device, the fixing mechanism is used for fixing the wrist of a user and preventing the wrist from moving during detection, and the pre-pressure of the fixing mechanism is adjustable,so that discomfort of the wrist due to overlarge pre-pressure of a second fixing plate is prevented; through the positioning mechanism, on one hand, the position of the detection probe can be adjusted, so that the probe is aligned, the pre-pressure of the probe is adjustable, the contact pressure between the probe and the wrist is ensured, and the detection accuracy is further improved.

The invention provides a sealing component, which is used for sealing connection between a hollow fixing part and a tubular rotary part. The sealing component comprises a tubular sealing body. One open end of the sealing body is fixedly connected with the fixing part, and is used for communicating an inner cavity of the sealing body with an inner cavity of the fixing part. The other open end of the sealing body is sleeved on the outer wall of the rotary part, and is used for communicating the inner cavity of the sealing body with an inner cavity of the rotary part. The sealing body has a three-layer structure, each of an inner layer and an outer layer consists of a plurality of annularly distributed plates, gaps are reserved between adjacent plates of the inner layer as well as between adjacent plates of the outer layer, and an intermediate layer made from a flexible sealing material is arranged between the inner and outer layers. The inner sides of the plates of the inner layer at the other open end of the sealing body are connected with the outer wall of the rotary part. By the unique structural design of the sealing component, air leakage gaps can be controlled to be small and adapted to the deformation of the rotary part, so that a sealing effect is effectively improved.

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, a controller and a light-emitting lamp, wherein the circuit board is provided with a sensor, the light-emitting lamp is electrically connected with the power supply, and the controller is electrically connected with the circuit board, the power supply and the drive motor. The car body comprises an upper shell, pedals, a middle shell, a lower shell and a lampshade. The middle shell is located between the upper shell and the lower shell. The lampshade is provided with at least two light-pervious lamp strips arranged in a spaced mode. The car body is provided with lamp holes used for containing lamp strips, and the number of the lamp holes and the number of the lamp strips are the same. The lamp strips are sleeved with waterproof rings. The lamp strips is closely pressed to the lamp holes through the waterproof rings. The car body is provided with at least two lamp holes when used for installing and fixing the lampshade. Compared with the structure that only one lamp hole is arranged to be matched with a lampshade, by means of the balance car, the lampshade is firmer when fixedly installed on the car body and is not likely to shake. Besides, the waterproof rings are arranged to achieve the waterproof function.

The invention relates to a smooth disassembly and fixing device for an electric vehicle tire. The smooth disassembly and fixing device comprises a supporting bottom plate, two clamping devices, clamping telescopic push rods, clamping push rod connecting wrenches and a rotating device; the two clamping devices are symmetrically distributed on the left side of the supporting bottom plate, and the right end of each of the clamping devices is connected with the top parts of the clamping telescopic push rods; and the clamping telescopic push rods are installed at the top of the left end of the supporting bottom plate through the clamping push rod connecting wrenches, and the rotating device is installed on the upper end surface of the middle part of the supporting bottom plate. According to thesmooth disassembly and fixing device for the electric vehicle tire, the problems that a tire cannot be effectively fixed when the tire is disassembled and tested, threads of bolts of an electric vehicle are easily damaged when the tire is disassembled, and fixed rotation can be performed for different types of tires can be solved; and the functions of tight fixing of the electric vehicle tire, automatic removing of the tire from the electric vehicle, and automatic fixed rotation of the tire can be realized.

The invention provides a dot blot hybridization reaction device and application thereof, and an immunoblotting detection method and relates to the technical field of molecular hybridization experimental devices. The dot blot hybridization reaction device comprises a sampling infiltration module and a suction filtration module used for supplying a negative pressure environment for the interior of the sampling infiltration module, wherein the sampling infiltration module comprises a micropore sampling plate provided with a sample through hole, a support layer provided with an infiltration through hole corresponding to the sample through hole, and a suction filtration tank; a first actuation unit is arranged in the micropore sampling plate; a second actuation unit matched with the first actuation unit is arranged in the suction filtration tank; a closed inner chamber is formed by the matched actuation units in the manner of adsorbing and fixing; and a hybridization film layer and the support layer are successively fixed under the micropore sampling plate. The dot blot hybridization reaction device is portable, is simple in operation and can effectively prevent the problem of cross contamination of sample rooms of the dot blot hybridization reaction device.

The invention discloses a municipal construction temporary concrete steel structure bridge and a mounting method thereof, and relates to the technical field of municipal construction. The invention aims at providing a temporarily-erected overpass bridge which is short in construction period and can effectively relieve traffic congestion. The bridge is characterized by comprising a plurality of prefabricated road boards, steel structure frameworks are arranged below the two sides of a base board, a passage port for pedestrians and vehicles to pass through is formed between the two steel structure frameworks, the adjacent road boards are connected end to end, a fastening device is arranged between every two adjacent road boards, and the road boards form a road surface for the vehicles to pass through.