81results about How to "Avoid protection" patented technology

The embodiments of the invention provide an interface multiplexing apparatus in a terminal, and an adaptor panel. The apparatus comprises a USB interface, a switching module, a detection control module, an audio circuit module and a USB circuit module. The USB interface comprises a data line pin and an ID pin. The detection control module is connected with the output end of the ID pin and the switching module, and the switching module is connected with the output end of the data line pin, the output end of the ID pin, the audio circuit module and the USB circuit module. The detection control module identifies the types of accessed devices through detecting the output electric signals of the ID pin; the switching module, according to the device types, opens the passways of the USB interface and the USB circuit module or the audio circuit module; and when the accessed device type is an earphone, MIC signals are transmitted through the ID pin. According to the invention, multiplexing of a USB interface and an earphone interface is realized, and at the same time, the problems of negative voltage protection and charging interference which are caused by transmission of MIC signals through a VBUS pin in a conventional USB interface in the prior art are prevented.

The present invention relates to photo crystal film, and is especially one kind of colloidal photon crystal film and its preparation and application in ultraviolet preventing material or cosmetics material. The colloidal photon crystal film is prepared through coating monodispersed polymer latex in hard core-soft shell structure on flat substrate and volatilizing the dispersing liquid; the obtained monodispersed polymer latex particle has shell of 20-50 nm thickness, particle size of 100-160 nm and multiple dispersion index not greater than 0.005; and colloidal photon crystal film has photon band gap in the ultraviolet region of 200-400 nm. The colloidal photon crystal film is used as the ultraviolet preventing material in cosmetics, paint, etc.

The invention relates to the field of medical instruments, in particular to an X-ray protection device with an integrated structure for an angiography machine. The device comprises a protection screen unit, a protection curtain unit and a bedside sliding rail unit, wherein the protection screen unit is arranged on the protection curtain unit, and the protection curtain unit is fixed on the bedside sliding rail unit so as to enable the protection curtain unit and the protection screen unit to synchronously and horizontally move along a bedside. The protection device can synchronously move along with a bed, and in a moving process, the protection device is always in the best protecting state and close to a patient, so that the problem that the radiation, especially the secondary stray radiation caused by the rays reflected by the patient, can not be effectively shielded due to the movement of the bed surface of a conduit bed is effectively solved, and meanwhile, the problems of prolonged surgery time, increased surgery risk and the like that are caused by adjusting the protection screen unit during surgery in the prior art are effectively avoided.

The invention discloses sunscreen cream capable of repairing skin damage, and belongs to the field of cosmetics. The sunscreen cream is prepared from, by mass, 1-30 parts of an industrial cannabis leaf extract, 60-90 parts of a solvent, 20-35 parts of additives, 0-10 parts of a physical sunscreen agent, 3-25 parts of a UVA chemical sunscreen agent and 3-20 parts of a UVB chemical sunscreen agent.The additives include the emollient, the preservative, the emulsifier, the film forming agent, the thickener, the humectant, the antioxidant, the pH adjusting agent and the natural additives. By meansof the sunscreen cream, the purpose of UVA and UVB protection on the skin can be effectively achieved, and the sunscreen cream has no irritation to the skin; meanwhile, the sunscreen cream is suitable for light indoor ultraviolet ray exposure and strong outdoor ultraviolet ray exposure, more importantly, the photochemical damage to the skin by ultraviolet rays can be timely repaired, and skin aging is slowed down.

The invention provides a network security system. The network security system has a system load automatic adjusting function and comprises a load detector, a decision arbiter and an adjustment actuator which are sequentially connected, wherein the load detector is used for detecting the system load and feeding anomalous events back to the decision arbiter; the decision arbiter is used for generating an adjustment decision according to the anomalous events and providing the adjustment decision to the adjustment actuator; and the adjustment actuator is used for carrying out adjustment according to the adjustment decision so as to cause the system load of the network security system to tend to a normal range. The network security system and the system load automatic adjusting method thereof in the invention can ensure that the system load of the network security system is in a safe and stable operating state.

The invention relates to a construction method of an indoor anti-static shielding mesh system. The shielding mesh system comprises roof surface shielding grids, ground shielding grids, wall surface shielding grids, window anti-static shielding grids and metal doors which are respectively formed by welding galvanized round steel of phi 8-12 millimeters, wherein all the grids are square. The construction method particularly comprises installation steps of all the grids. According to the method, a signal power supply room, a computer room, a machine room and the like which be required to be subjected to protecting and shielding on electromagnetic pulses adopt a room-in-room construction according to the Faraday electromagnetic shielding principle. The complete indoor anti-static shielding mesh system can be formed by installing and connecting the roof surface shielding grids, the ground shielding grids, the wall surface shielding grids, the window anti-static shielding grids and the metal doors. The whole system is simple in construction process, strong in operability and short in working cycle.

The invention relates to the fields of computer technologies and networks, in particular to a secure flow filter and a filtering method based on a software defined network (SDN) controller. Before various unknown flow information is written into a flow table of the SDN controller, the secure flow filter can be established at a location through which the flow passes, and is used for analyzing and processing the flow and identifying various attacks or sniffing the flow in order to ensure the validity of data in the flow table and overcome defects caused by a firewall. The secure flow filter is transparent to an existing network; network elements and architecture of the existing network do not need to be modified; extremely-high flow filtering efficiency is achieved through use of a DPDK driver; and the network performance is not influenced. Through adoption of the secure flow filter and the filtering method, the security of the whole network is enhanced at minimum investment on the premise of not modifying the existing SDN network.

The invention relates to the technical field of circuit protection, and more specifically relates to an adaptive discrimination method for the zero-sequence protection direction of a distribution line. The adaptive discrimination method comprises the steps of inputting a CT polarity automatic detection function when the distribution line is put into operation with load, comparing the phase difference between phase current Ip and phase voltage Up of a three-phase CT, carrying out comparison with a manually set load current direction, judging the polarity of the CT, automatically reversing the polarity of the three-phase CT if the polarity of the CT is reversed, quitting the CT polarity automatic detection function and the load current direction after the line is put into operation; comparing the phase difference between self-generating zero-sequence voltage 3U0 and self-generating zero-sequence current 3I0 when a grounding fault occurs in the line, and discriminating the zero-sequence protection direction according to the phase difference. The adaptive discrimination method can avoid a problem of low zero-sequence current measurement accuracy caused by a too small secondary value ofthe self-generating zero-sequence current. The zero-sequence protection direction discrimination adopts the self-generating zero-sequence current and self-generating zero-sequence voltage, and the three-phase CT has already verifies the polarity when being loaded, thereby effectively avoiding the risk of failure to operate due to the reversed polarity connection of the zero-sequence CT.

The invention relates to a shielding textile integrating high fire resistance, high electric conduction and high magnetic permeability. A preparation method of the shielding textile integrating high fire resistance, high electric conduction and high magnetic permeability comprises the following steps of: injecting fire resistant factors into textile fibers comprising nylon, terylene and chinlon textile fibers to form fire resistant textile fibers, wherein the fire resistant factors comprise the following materials and chemical components in percentage by weight: 5-10 percent of nano imvite NaXAl2[Si4O10(OH)2nH2O], 3-8 percent of red phosphorus master batch (RP) and 3-6 percent of nano antimonous oxide (Sb2O3); mixing carbonyl iron Fe(CO)5 and nickel carbonyl Ni(CO)4 according to a certain proportion by adopting a carbonyl chemical vapor deposition method; and carrying out vapor deposition at 400 DEG C under the protection of inert gas N2 to form a high electric conduction and high magnetic permeability magnetic film on fiber cloth so as to obtain the high fire resistance, high electric conduction and high magnetic permeability shielding textile. The invention is suitable for the field of electromagnetic shielding and is particularly suitable for microwave shielding occasions and power frequency magnetic field shielding occasions.

The invention discloses a station-yard switching method of a shunting train protection (STP) system. The method comprises: establishing a communication channel between ground equipment of every two adjacent control zones, exchanging the adjoined part signal condition and the approach road condition of the two control zones, the ground cabinet of the control zone where a registered locomotive is located transmitting the signal condition of the adjoined areas of the two control zones to the locomotive when a transfer approach road is opened in front of the registered locomotive and informing the locomotive of performing station-yard switching in real time, switching to the control zone which the locomotive is about to enter, meanwhile, transmitting train set information of the locomotive to the corresponding ground cabinet through the communication channel, and the corresponding ground equipment directly taking over the control of the locomotive, without carrying out the process of registration, network access, and re-initialization of the train set information of the locomotive. The purpose of continuous control over the transfer operation of the locomotive is realized. The station-yard switching method of the STP system is of great significance in improving the control performance of STP systems.

The invention provides a combustion chamber based on high-repetition-frequency laser and a scramjet engine. Stable flame is realized through a method of continuous breakdown of gas in supersonic-velocity gas currents through high-repetition-frequency laser pulse, so that the problems of flowing loss and heat protection caused by a mechanical flame stabilizer are effectively prevented.

The invention discloses a storage battery pack structure capable of supplying a discharge circuit for open-circuit batteries and an implementation method thereof. The structure comprises a storage battery pack, wherein a plurality of battery cells are contained in the storage battery pack; the battery cells are connected in series; and each battery cell in the battery cells is connected with a fly-wheel diode for supplying a discharge current passage for the discharge circuit in parallel. The storage battery pack can be used for uninterruptedly supplying a working current for a load by using the storage battery pack structure, so that the accidents such as protective action resistance caused by open-circuit faults of storage batteries can be effectively avoided, and the discharge capacity of the storage battery pack and the power supply reliability of the storage battery pack are greatly improved. The storage battery pack structure capable of supplying a discharge circuit for open-circuit batteries and the implementation method thereof disclosed by the invention can be widely applied in the field of storage battery charging.

The invention discloses a porous mold bag concrete ecological bank protection structure and a construction method thereof. The porous mold bag concrete ecological bank protection structure mainly comprises concrete fins, bamboo pipes and anchor rods; the concrete fins are made of mold bag self-compacting concrete, and a certain angle is formed between the length direction of the concrete fins andthe slope surface contour line; valleys parallel to the length direction and the width direction of the concrete fins correspondingly are reserved between the concrete fins; and one ends of the anchorrods are inserted in a side slope, and the other ends of the anchor rods are fixed to the nest bamboo pipe and the vegetation bamboo pipe and buried in the concrete fins. The porous mold bag concreteecological bank protection structure can adapt to the complex terrain, is high in construction efficiency and can be applied to rocky water banks or hydro-fluctuation belts, nests are provided for wild animals while the water banks or the hydro-fluctuation belts are effectively protected, and the growing environment is provided for plants.

The invention belongs to the technical field of textiles, and particularly relates to a fire resistant fiber blended yarn and a production method thereof. The fire resistant fiber blended yarn comprises, by weight, 30-45% of Lenzing FR fibers, 30-40% of Protex-M fire-resistant acrylic, 15-20% of Lenzing A100 fibers, and 5-10% of Twaron. The production method sequentially comprises the following steps of 1, conducting pretreatment on the Lenzing FR fibers and the Twaron, 2, conducting blowing for the first time, 3, conducting blowing for the second time, 4, conducting cotton carding, 5, conducting drawing, 6, conducting roving, 7, conducting spinning, 8, conducting spooling and 9, conducting yarn steaming. A garment manufactured by the yarn has the permanent fire resistant function, the adopted yarn is safe and environmentally friendly, and no poisonous gas is released; the garment manufactured by the yarn is soft in touch, a user wears the garment comfortably, and the moisture absorption and breathable performance is good; the yarn is formed by evenly mixing the fibers, and the thermal protection and comfort differences caused when the fibers are unevenly mixed at different places of a shell fabric are avoided.

The invention provides a servo motor driver, device and system for a gate and gate equipment. The servo motor driver comprises a microprocessor, an encoder circuit, a communication unit, a power driving circuit and a band-type brake circuit, wherein the encoder circuit, the communication unit, the power driving circuit and the band-type brake circuit are connected with the microprocessor. The communication unit is used for sending the received first information to the microprocessor. The encoder circuit is connected with the encoder and used for transmitting second information sent by the encoder to the microprocessor. The microprocessor is used for sending a band-type brake control signal to the band-type brake circuit to start the band-type brake circuit to achieve band-type brake and controlling the servo motor through the power drive circuit to drive the gate to execute corresponding actions according to the first information or the second information. The motor driver provided bythe invention is provided with the band-type brake circuit, and the band-type brake circuit is started through the band-type brake control signal to realize band-type brake when needed, so that the potential safety hazard that the gate equipment is forcibly opened in a door closing state can be avoided, and the safety and the intelligence of the gate equipment and the satisfaction of user experience are improved.

The invention relates to the technical field of communication box protection devices, in particular to a 5G communication box protection device which comprises a first mounting plate. A plurality of mounting holes are formed in the first mounting plate, an empty groove is formed in the first mounting plate, a convex plate is arranged in the empty groove in a sliding mode, and a plurality of firstcompression springs are fixedly connected to the rear end of the empty groove. The front ends of the multiple first compression springs make contact with the rear end of a convex plate, and the frontend of the convex plate extends to the front side of the first mounting plate to be fixedly connected with a connecting plate. The protection box reduces the impact strength of an external object on the protection box, reduces the impact deformation degree of the protection box, improves the protection effect on communication equipment in the communication box, improves the protection performance,can cool the communication equipment, can prevent rainwater and dust from entering the protection box, and prolongs the service life of the communication equipment. And the communication equipment isconvenient to maintain, the detection and maintenance efficiency is improved, and the use practicability is improved.

The invention discloses a small-size deformation joint construction adjustable formwork system which is characterized in that forward thread sections and reverse thread sections are arranged on screwsat intervals in the axial direction, connecting sleeves are fixed to the vertically adjacent screws, and handles are arranged at the tops of the screws at the top ends. The nuts are respectively arranged on the forward thread section and the reverse thread section of the same screw and internally provided with corresponding threaded holes, the steel formworks are parallelly arranged on two sidesof the screw respectively, the lug plates are fixed on the steel formworks at intervals along the axial direction of the screw, and the nuts are hinged with one ends of the two pull plates on two sides corresponding to the steel formworks respectively. The other ends of the two pull plates hinged with the screw on the adjacent forward-rotating or reverse-rotating thread section of the screw rod are respectively hinged with the lug plates. The forward and reverse thread sections are arranged on the screw rods, so that the nuts, the lug plates and the pull plates form an openable shear type structure, the distance between the steel formworks can be conveniently adjusted, the problem that the formworks are difficult to mount and dismount in small-size deformation joint construction is solved,and the device has the advantages of being convenient to mount and dismount, flexible in adjustment, high in supporting strength and capable of being repeatedly used.

The invention relates to a machining process of a full-band radar camouflage net, and belongs to the technical field of camouflage nets. The machining process comprises the steps: firstly, manufacturing a foam base layer, pressing small patterns on one single surface or double surfaces of the foam base layer, and preparing a waterborne polyurethane paint with a superconducting electric shielding function; coating the paint on both surfaces of the foam base layer subjected to pattern pressing, pressing large patterns on the surface layer of the paint on one single or double surfaces, manufacturing an oxford fabric, coating a flame-retardant layer paint on both surfaces of the oxford fabric, and coating an anti-infrared coating outside a flame-retardant layer on the bottom surface of the oxford fabric; and coating an anti-radar coating outside the flame-retardant layer on the oxford fabric, and finally, pressing large patterns on the anti-radar coating of the oxford fabric; Compared with a traditional camouflage net, the camouflage net provided by the invention has the advantages of simple process, light weight and implementation of protection and shielding from a full-band radar by compounding the foam base layer pressed with the small patterns and the oxford fabric up and down.

A device and method for transfer, docking and transfer positioning of a spacecraft inside and outside a container cabin in a space environment, comprising a container inner track (1), a container outer track (2), a docking bracket (3), a transport trailer (4), a first Small trailer (5), the second small trailer (6) and position sensor (7); The first small trailer (5) and the second small trailer (6) are placed on the container outer track (2), and the first small trailer ( 5) Keep a certain distance from the second small trailer (6), place the transport trailer (4) on the first small trailer (5) and the second small trailer (6), and install the docking bracket (3) on the transport trailer ( 4) On the upper surface, install the spacecraft (8) on the docking bracket (3), install the position sensor (7) on the second small trailer (6), pass the first small trailer (5), the second small trailer (6) and the transport trailer (4) move cooperatively on the orbit, and can transport the spacecraft (8) into and out of the space environment container, and can move the spacecraft (8) out of the container to a certain distance.

The invention provides a teaching demonstration device, which comprises a storage frame, adjustable lifting frame structures, labor-saving moving frame structures, longitudinal limiting frames, a lifting display frame structure, a side edge positioning insertion pipe, a convex block, a movable cover plate, an inverted U-shaped frame, an automatic limiting frame structure, a storage frame, a display screen, a side edge insertion frame, a writing board, a rubber cushion block, a storage battery and a control button. The adjustable lifting frame structures are installed at the four corners of thelower portion of the storage frame; the labor-saving moving frame structures are mounted below the adjustable lifting frame structures; the longitudinal limiting frames are installed on the left sideand the right side of the inner wall of the storage frame through screws. Stretching air cylinders are inserted into the left side and the right side of the bottom of the storage frame, meanwhile, the upper portions of the stretching air cylinders are in bolted connection with a connecting plate, the stretching air cylinders can be conveniently used for driving the display frame to flexibly ascend and descend according to needs during use, and display objects in the display frame are conveniently displayed.

The invention discloses a lubricating oil storage tank. The lubricating oil storage tank comprises a storage tank, a heating cylinder is arranged at the outer side of the storage tank, supports are arranged on the two sides of the bottom end of the storage tank, a base is arranged at the bottom ends of the supports, a liquid outlet pipe and a liquid inlet pipe are arranged at two sides of the topend of the heating cylinder correspondingly, a filter cartridge is arranged at the top end of the liquid inlet pipe, a fixing cover is arranged at the top end of the filter cartridge, a first pipelineis arranged at the top end of the fixing cover, the bottom end of the first pipeline penetrates through the fixing cover, the liquid inlet pipe penetrates through the filter cartridge, a silica gel sleeve is arranged on the inner wall of the filter cartridge, a filter screen is arranged at the bottom end of the inner wall of the silica gel sleeve, an annular groove is formed in the top end of theinner wall of the silica gel sleeve, a first sealing gasket is arranged on the top end surface of the filter cartridge, and a sealing groove is formed in the top end surface of the filter cartridge.The silica gel sleeve is additionally arranged at the outer side of the filter screen, so that a worker can replace the filter screen conveniently, the liquid inlet efficiency of the liquid inlet pipeis further improved, and the heating efficiency of the heating cartridge on the storage tank is further improved.

The invention discloses a cable with protective function, include cable core, the cable core is formed by twisting a plurality of wire cores inside, A tape is tightly wound on that outside of the wirecore, A first spring and a second spring are fixedly connected on the outer side of the wrapping band, At one end of that second spr, a fireproof layer is arrange, A high-flame-retardant fill is arranged on that inn side of the fireproof layer and the outer side of the bag belt, and the outer side of the fireproof layer is coated with an armor layer, A first insulating layer is coated on the outside of the armor layer, An out protective sleeve is coated on that outer side of the first insulate layer, A wear-resistant convex strip is uniformly distributed on the outer side of the outer protective sleeve, the wire core includes an inner protective sleeve, A second insulating layer is coated on the inner side of the inner protective sleeve. The cable with protective function has simple structure and reasonable design. By adding a spring device on the outer side of the cable core, the compression resistance of the cable is improved, deformation or damage of the cable caused by multiple extrusion can be avoided, and at the same time, the cable has good flame retardancy and insulation.

The invention discloses a psychiatric nursing trolley with a protective device, specifically relates to the technical field of nursing trolleys, comprising a ladder frame, the inner side of the ladder frame is provided with a placement cavity, and the inner side of the placement cavity is sequentially arranged from bottom to top. There are several placement units which include fixed poles. The present invention adopts the setting of the trapezoidal frame, because of its trapezoidal shape, the stability is better when an impact occurs, that is, it has the protective effect of preventing knocking down, and the setting of the placing unit not only facilitates the classification of medicines and instruments, but also , It is also difficult for mental patients to take medicine from the inside. Through the setting of the operation panel, the top cylinder and the opening, when not in use, the cylinder is located above the operation panel, and the patient cannot observe the items on the operation panel. When in use, Through the blocking effect of the arc-shaped transparent plate, the patient cannot take the items on the operation panel, which has the protective effect of preventing the patient from taking the medicine, and can also ensure that the nurses have sufficient light when operating.

The invention discloses an accurate cleaning mechanism of an intelligent electric automatic cleaning robot. The accurate cleaning mechanism comprises a telescopic arm, a cleaning mechanism and an insulating mechanism, wherein the telescopic arm comprises a plurality of connecting modules and a control base; the connecting modules are connected in series and arranged on the control base; the control base is used for controlling the swing direction and amplitude of the connecting modules; the cleaning mechanism comprises a cleaning head, a control module and a brushing mechanism; the control module is arranged at the top of the cleaning head; a fifth motor used for controlling and driving the cleaning head to rotate is arranged in the cleaning mechanism; and two cleaning clamp sleeves capable of swinging synchronously are arranged on the brushing mechanism. Through the telescopic arm, the position of the cleaning mechanism can be adjusted; through the cleaning clamp sleeves, the cleaningoperation on insulating columns can be achieved; and the cleaning efficiency can be greatly improved.

The invention discloses a cutting-free self-forming method of micro plane parts, and relates to a cutting-free self-forming preparation method of the plane micro parts (target parts) used for laser inertial confinement fusion research. The technical problem of secondary precise machining of the inertial confinement fusion target micro plane parts is solved. The method comprises the steps that firstly, an Si substrate in the prefabricated graph is used for plating a demolding agent, and a mold plate plated with the demolding agent is obtained; secondly, a deposition method is adopted to prepare a micro plane part material film on the mold plate plated with the demolding agent, and the mold plate with the micro plane part material film deposited is obtained; thirdly, demolding is carried out, wherein the micro plane part film of the mold plate surface with the micro plane part material film deposited is released, and the micro plane parts are obtained. The method has the beneficial effects that the technical problem of secondary machining of the flat micro plane size is solved, the application range is quite wide, batched production is achieved, repeated precision is high, the mold plate can be repeatedly used, the cost is low, and the method is mainly used for machining the micro plane parts.

The invention relates to the technical field of electronic equipment, and discloses a liquid crystal display screen with double rows of FPC interfaces. The liquid crystal display screen with double rows of FPC interfaces comprises a display screen and a frame body, wherein a shielding layer is arranged on one side of the display screen; one side of the shielding layer is fixedly connected with a protecting layer; one side of the protecting layer is fixedly connected with a capacitive screen; a main FPC interface, a first auxiliary FPC interface and a second auxiliary FPC interface are formed in the surface of the capacitive screen; one side of the capacitive screen is fixedly connected with a glass lens; and a circuit substrate is arranged in the main FPC interface. By arrangement of the shielding layer, the effect of preventing operation of the capacitive screen from being interfered by electromagnetic signals in the display screen, therefore, operation of electronic parts and components in the display screen is prevented from affecting response of the capacitive screen, mistaken operation is prevented, the protecting layer can have an effect of improving protection to the capacitive screen, and by a short golden finger, long golden finger and soldering tin, wires and the circuit substrate are protected.

The invention provides a suspended working platform for building maintenance, and relates to the related technical field of suspended working platform mechanisms for building maintenance. The suspended working platform comprises a suspended working platform frame, wherein telescopic supporting column mechanisms are installed on the left side and the right side of the suspended working platform frame; supporting rolling wheels are installed at the bottom of the suspended working platform frame in a rectangular array mode; the bottom of the suspended working platform frame is movably connected with a protective frame through a hinge piece; two protective rolling wheels are symmetrically installed on the front surface of the suspended working platform frame; two C-shaped sliding rails are installed at the top and the bottom of the front inner side wall and the rear inner side wall of the suspended working platform frame respectively; a telescopic frame is installed among the four C-shapedsliding rails located on the same side in a sliding mode; corresponding positioning holes are formed in the matching surfaces of the C-shaped sliding rails and the telescopic frame at equal intervals; and positioning pins are installed on the C-shaped sliding rails and the telescopic frame through the positioning holes. According to the suspended working platform for building maintenance, the suspended working platform frame is fixed to a lifting mechanism and a building through steel wire ropes, so that transverse movement of the suspended working platform frame is effectively avoided, and an operator can reach the inner concave wall surfaces, away from lifting points, of the two sides of the suspended working platform frame to carry out maintenance operation.

The invention relates to the technical field of protection devices, and discloses a novel protection device for badminton training. The novel protection device for badminton training comprises a wristguard, wherein a hand guard is woven and fixed to the back surface of the wrist guard through textile yarns, and is of a double-layer structure; a protection layer is fixed inside the hand guard andis made of a sponge material; and five finger guards are woven and fixed to the front surface of the hand guard through textile yarns, and correspond to five fingers of a hand part. In the use process, a palm part of an athlete can be protected; when in use, after the athlete wears the wrist guard on a wrist part, the five fingers penetrate through the five finger guards at the same time, so thatthe hand guard can be fixed to the palm part, the friction between a handle of a racket and the palm can be reduced through the hand guard for athletes with hands sweat easily, and the occurrence of the phenomenon that the palm part gives off heat and is painful after exercises for a period of time can be avoided.

The invention discloses a pulling type computer all-in-one machine. The pulling type computer all-in-one machine mainly comprises an all-in-one machine body, a fingerprint identification module, a ring-pull, a USB port, a spring, an induction contact and an information outputting module, wherein the all-in-one machine body mainly comprises a display, a main board, a pulling structure and a support, the display is connected to the main board, the main board is arranged at the back of the display, the pulling structure is arranged below the display, the all-in-one machine body is supported through the support, the fingerprint identification module is arranged beside the pulling mouth end of the pulling structure, the ring-pull is arranged on the side of the fingerprint identification module, the USB port is arranged inside the pulling structure, the USB port is connected to the main board, the spring is arranged on one end inside the pulling structure, one side of the spring is connected to the induction contact, and the induction contact is connected to the information outputting module. The pulling type computer all-in-one machine has the advantages of being reasonable in design and comprehensive in cryptosecurity. Situation where strangers operate the computer all-in-one machine can be effectively prevented.