644results about How to "Fixed tightly" patented technology

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 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.

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 relates to a mop cleaning cloth fixed structure, the structure at least contains: a base, which is counter provided with a working bottom surface and a top part; and a plurality of positioning parts, which are respectively arranged at four angles of the top part at least, wherein, all the positioning parts are embedded on the base, the interior of the invention is hollow, the top end is provided with an elastic slice, a plurality of tooth parts are arranged on the slice to form a serrated opening, cleaning cloth is clamped in a staggered way, all the tooth parts respectively face to the interiors of the positioning parts to be extended with a clamping part, and the cleaning cloth is closely clamped by all the clamping parts to be fixed on the base.

The invention relates to the field of machinery, particularly a gas flowmeter and metering method thereof. The meter can be directly maintained on the pipeline without influencing the metering. The gas flowmeter comprises a flowmeter body and a bypass unit, wherein the flowmeter body comprises a main flow channel, a main metering unit and a main storage unit; the main metering unit is detachably arranged on the main flow channel, and used for detecting total gas flow rate in the main flow channel; the main storage unit is used for storing the total gas flow rate value; the bypass unit comprises a bypass flow channel, a bypass metering unit and a bypass storage unit; the bypass flow channel is arranged outside the main flow channel, and both sides of the bypass flow channel are communicated with the main flow channel; the bypass metering unit is arranged on the bypass flow channel, and used for detecting flow rate of bypass gas in the bypass flow channel; the bypass storage unit is used for storing flow rate value of the bypass gas; the display unit is used for displaying the total gas flow rate value and/or bypass gas flow rate value and/or the difference between the total gas flow rate value and the bypass gas flow rate value; and the bypass gas is the gas which flows into the bypass flow channel from the total gas.

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 slot type fabric drum which comprises a drum body and a fixed inserting plate, wherein the drum body is in a symmetrical stepped shaft shape; a slot adapt to the size of the fixed inserting plate is arranged on the thick shaft part in the middle of the drum body; the fixed inserting plate can be completely inserted into the slot; the connecting end faces of the fixed inserting plate and the slot are of matched zigzag structures; L-shaped buckles are arranged on two ends of the fixed inserting plate and are connected with the fixed inserting plate through an elastic device; grooves adapt to the buckles are arranged on stepped surfaces of two ends of the thick shaft part of the drum body; after the fixed inserting plate tightly clamps fabric and is completely inserted into the slot, the buckles are buckled into the grooves through the elastic device. When the fabric is initially installed, one end of the fabric covers the slot of the drum body, then the fixed inserting plate is utilized to clamp the fabric into the slot, and the elastic device is utilized to buckle the buckles into the groove to lock the fixed inserting plate, so that the fixed inserting plate can be prevented from falling off, the fabric can be fixed tightly and is not easy to slip when being reeled.

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 steel roof truss damage diagnosis device, which comprises a detachable additional mass block, a dynamic data acquisition system and an intelligent processor. The additional mass block can be used for symmetrically and fixedly clamping a steel roof truss joint, the dynamic data acquisition system can be used for measuring low-order inherent frequency information of vibration of a steel roof truss after mass is added, and the intelligent processor is provided with a steel roof truss damage diagnosis program module and can output damage parameters by means of inputting the measured frequency information. By the aid of the technical scheme, the steel roof truss damage diagnosis device has the advantages that operation is convenient, the additional mass block can be reused, the device is simple, implementation cost is low, normal work of the steel roof truss is unaffected, and the like. Sufficient frequency information can be acquired to meet the need of damage diagnosis, and the steel roof truss damage diagnosis device is easy in operation, convenient in carrying and multi-point acquisition and high in detection and diagnosis accuracy.

The invention discloses a gas analysis and detection device in the environment, which comprises a casing, an air inlet is arranged on the top of the casing, a valve matching the air inlet is arranged on the top of the air inlet, and a filter is arranged above the inside of the casing. The filter screen divides the interior of the shell into a filter chamber and a detection chamber. The top of the filter chamber is located on the side of the air inlet with a suction fan, and the bottom of the filter chamber is provided with a filter mesh. The filter chamber and the detection chamber are detachable. Connection, the bottom of the filter chamber is symmetrically provided with inserts on both sides, and the top of the insert is provided with a stopper. The stopper is located at the bottom of the filter chamber, and the diameter of the stopper is larger than the diameter of the insert. A slot matching the plug is provided at the corresponding position, and an insertion port matching the stop is provided on the top of the slot. Beneficial effects: the filter screen can be cleaned in time conveniently, which is more conducive to the cleanness and tidiness of the gas environment inside the housing, and the detection head can fully contact the gas in the housing, thereby greatly improving the detection accuracy.