78results about How to "Secondary damage" patented technology

The invention belongs to the field of related technologies of tunnel seepage detection and discloses a tunnel seepage detection robot based on multi-sensor fusion. The tunnel seepage detection robot comprises a case with an opening, a case chassis connected to the case, a control circuit board hoisted to the case, at least three vacuum pumps, a big sucker, wheel legs and crawler walking modules, wherein the chassis is also provided with a groove and holes penetrating through the chassis; the big sucker is arranged in the groove and is provided with sucker legs; parts of the crawler walking modules pass through the holes, protrude from the chassis and are away from the surface of the case, and the crawler walking modules are also provided with small suckers; the at least three vacuum pumpsare respectively connected to the big sucker, the small suckers and the sucker legs; and the at least three vacuum pumps, the wheel legs and the crawler walking modules are electrically connected to the control circuit board respectively. The tunnel seepage detection robot disclosed by the invention improves the detection accuracy and is higher in applicability, lower in cost and higher in flexibility.

The invention discloses a microcapsule wrapping acid used for an oil field, which is prepared from basic acid, a curing filling material, a wrapping material, a surfactant and a solvent; and a preparation method comprises the steps of preparing materials, mixing, heating, fluidifying and wrapping. A macromolecule wrapping material is adopted for the microcapsule wrapping acid, which is carried todeep cracks of a stratum along with an injected liquid in the process of acid fracturing construction, and the situation of release of basic acid cannot occur when the material is in the shaft and just enters the cracks; H<+> can be released after the liquid enters the deep cracks of the stratum, thus breaking through the limitation of reaction conditions of conventional acidic rocks, greatly extending the effective acting distance of the acid liquor, and simplifying the construction flow and reducing the construction requirement; because wrapping treatment is performed on the basic acid, danger cannot be caused, and the wrapping acid can be stored for a long time; corrosion to a tubular column cannot be caused, and an acid fracturing flowback liquid produced subsequently is low in environment pollution damage, residue basically does not exist after acid fracturing, and secondary damage to the reservoir stratum can be avoided.

The invention discloses a power battery safety system for a new energy vehicle, which includes a control unit, an alarm sensor and a fire extinguishing device. Wherein the alarm sensor is arranged next to the power battery pack of the new energy vehicle for detecting the environmental conditions of the battery pack, the alarm sensor is connected with the control unit, and the control unit is connected with the fire extinguishing device. When the alarm sensor detects that the environmental condition of the battery pack exceeds a preset value, it sends an alarm message to the control unit, and the control unit triggers the fire extinguishing device according to the alarm message. The power battery safety system for new energy vehicles involved in the present invention can detect the abnormal temperature of the power battery pack in time and quickly deal with it, and effectively solve the time from the discovery of the sudden fire of the new energy vehicle to the implementation of the fire extinguishing process. Lag problem, reduce security risks.

The invention provides a multistage efficient energy absorption seat backrest. A rear fixing board, a front fixing board and an energy absorption device are arranged in the backrest. The energy absorption device comprises two spring expansion type crushing pipes, a buffer folder and a spring locking device. One end of each spring expansion type crushing pipe is connected with the rear fixing board, and the other end of each spring expansion type crushing pipe is connected with the front fixing board. The two spring expansion type crushing pipes are arranged at the upper portion and the lower portion of the front fixing board. The buffer folder is arranged at the middle position of the front fixing board. The spring locking device is arranged corresponding to the buffer folder and used for locking the buffer folder. The multistage efficient energy absorption seat backrest is small in occupied space and can be used for three-stage efficient energy absorption when a person collides with a train seat, and the impact effect caused by the seat on the human body is reduced.

The invention discloses a finished vertical hinged door window frame. The door window frame is mounted on a door window hole of a building main body through a mounting chassis; the frame is characterized in that the door window frame is tightened with the mounting chassis in a position adjustable manner; and the mounting chassis is tightened with the door window hole of the building main body in a position adjustable manner. The finished vertical hinged door window frame has the characteristics of strong adjustability, convenient and fast mounting, high construction precision and wide application range, gets rid of the dependence of the conventional door window frame mounting on glue and a foaming agent, adopts dedicated metal fittings and a tightening technology, and ensures the long-time stability of the use of the finished vertical hinged door window frame product; an adjusting mechanism of the chassis ensures the accurate mounting of the door window frame and a wall body base layer, and completely covers the conventional error of a reserved hole; the definition standard of the product mounting interface and the decorative construction is clear and simple; respective responsibility can be ensured to be clear and to be undertaken separately; unnecessary trouble caused to the customer can be avoided; and meanwhile the happening of the dispute and the contradiction can be effectively avoided.

The invention discloses a hot cutting machine for cutting an automobile wire harness braided wire in a mechanical cutting equipment field. The hot cutting machine for cutting the automobile wire harness braided wire comprises a baseplate which is arranged horizontally and a vertical plate vertically arranged on one lateral side of the baseplate, a fixed lower cutter with an upward cutter point is fixedly arranged on the surface of the baseplate, a cylinder fixed plate is horizontally fixed at the top end of the vertical plate, an adjustable cylinder is vertically arranged above the cylinder fixed plate, and the adjustable cylinder penetrates through the cylinder fixed plate. A piston rod at the front end of the adjustable cylinder is fixedly connected with a fixed support, a cutter seat is fixedly connected at the lower end of the fixed support, and a flexible upper cutter with a downward cutter point is arranged inside the cutter seat. A sharp cutting mouth is formed by matching the flexible upper cutter with the fixed lower cutter, the hot cutting machine is used for cutting the automobile wire harness braided wire, the braided wire can be melted in the process of heating and cutting, scattered phenomenon of a textile wire does not occur, and meanwhile the cutting mouth is intact and smooth after cutting. The hot cutting machine for cutting the automobile wire harness braided wire is capable of improving working efficiency, reducing rejection rate of wire harness, and is convenient to popularize greatly.

The invention provides a novel retractable minimally invasive surgery operation arm. The novel retractable minimally invasive surgery operation arm comprises an angle deflection mechanism, an offset error compensation mechanism, a drive mechanism, a joint mechanism and an electrotome mechanism. The novel retractable minimally invasive surgery operation arm has the advantages that the angle deflection mechanism is fixed on a minimally invasive surgery mechanical arm mounting table, so that the stability of the whole mechanism is guaranteed; the offset error compensation mechanism can control the extension length of a piston in a single-rod double-action air cylinder to appropriately adjust the distance and increase operation precision when an electrotome cannot reach an appointed surgery part through the drive mechanism and the joint mechanism or exceeds a lesion part; the drive mechanism uses for motors of the same type to perform driving and uses a lever structure to adjust joint angle; the joint mechanism uses a joint serial connection type structure and controls the joint angle by adjusting the tightness of an internal steel wire rope; the electrotome mechanism is connected withthe joint mechanism, and the electrotome angle is adjusted through the steel wire rope.

The invention relates to a device for transferring bed patients and replacing bed sheets. The device is erected on a nursing bed, and comprises a driving mechanism, moving mechanisms and a bed sheet coiling mechanism, wherein the moving mechanisms are respectively erected at two ends of the nursing bed in the width direction of the nursing bed; the bed sheet coiling mechanism is connected betweenthe two moving mechanisms; the driving mechanism is arranged at any end of the nursing bed, and is in driving connection with the moving mechanisms; and when a bed sheet needs to be replaced, the driving mechanism drives the moving mechanisms to be in reciprocating motion in the width direction of the nursing bed, so that the bed sheet coiling mechanism is driven to be in reciprocating motion to replace the bed sheet. Through the adoption of the device disclosed by the invention, on one side, under the situation that a patient is not moved, the bed sheet is conveniently replaced, and on the other side, under the situation that manual handling of the patient is not needed, the patient can also be transferred.

A test blade for use in a blade-release test in which the blade is mounted on a rotatable hub and at least a portion of the blade is released therefrom by the action of a controlled explosion. The blade has a root portion for mounting on said rotatable hub and the root portion comprises a radially inner surface having a channel extending at least partly along or proximal the camber line. The channel is for receiving at least one explosive charge and at least one detonator which may be contained within a charge carrier.

The invention relates to a difluprednate ophthalmic emulsion. The difluprednate ophthalmic emulsion is prepared from difluprednate, oil, an emulsifier and a preservative, wherein the preservative contains polyquaternium-1, and the dosage of the polyquaternium-1 is 0.0005 to 0.01 percent w / v. According to the difluprednate ophthalmic emulsion disclosed by the invention, the novel preservative, namely the polyquaternium-1, basically has no damage effect on cornea and ocular surface tissues, and secondary injury on a patient cannot be caused while the pharmacological effect is achieved.

The invention provides a pipe microleakage detection method based on a deep neural network. By means of the pipe microleakage detection method based on the deep neural network, the pipe leakage monitoring scope is widened, a detection point can be selected flexibly, and secondary damage of an original pipe cannot be caused. The pipe microleakage detection method comprises the following steps of 1,collecting the pipe leakage sound frequency; 2, conducting preprocessing on data; 3, generating a pipe microleakage detection model based on a convolution neural network; and 4, conducting training on the pipe microleakage detection model, and conducting pipe microleakage detection through the pipe microleakage detection model obtained after training is complete. The pipe microleakage detection method has the beneficial effects that by means of the microleakage detection model based on the convolution neural network, a non-contact type detection method can be provided for pipe leakage detection; defects, such as pipe body damage, of an existing method are overcome; and the data foundation is laid for scientific research on relevant problems.

In the electric power steering apparatus, a supporting mechanism for supporting a steering assist motor on a stationary member comprises: a projection provided at one end of a motor housing; a recess provided at the stationary member, into which said projection is inserted; a movement permitting portion for permitting relative movement of the projection in the recess; and a slip-off portion from where the projection slips off said movement permitting portion. When impact energy of a primary crash and / or a secondary crash is applied to the motor housing, support of the motor on the stationary member is automatically released by rotating said motor housing.

The invention discloses a meniscus suturing instrument in the field of medical equipment. The instrument comprises a cannula, a needle pushing tube is connected to one end of the cannula, and a handleis connected to the end, away from the cannula, of the needle pushing tube; a needle pushing rod is slidingly connected into the cannula, a needle pushing handle is slidingly connected into the needle pushing tube and connected with the needle pushing rod, a suture needle is arranged in the cannula at the outer side of the end, away from the needle pushing handle, of the needle pushing rod and comprises two syringe needles, and a suture is connected between the two syringe needles. According to the meniscus suturing instrument, through design of the double syringe needles of the suture needleand design of the cannula, the needle pushing rod and the needle pushing handle, suturing can be completed merely through one-time puncture in the meniscus suturing surgery, and in the suturing process, vice-damage caused to the meniscus by repeated puncture on the meniscus with the suture needle cannot be caused.

The invention discloses a gate access control method. A gate comprises a door frame and a shear type door arranged on the door frame. The shear type door is driven by a first drive mechanism and a second drive mechanism to act. A control system judges whether a person is clamped or a passenger breaks through the gate according to access logic and controls the first drive mechanism or the second drive mechanism to execute action. The first drive mechanism and the second drive mechanism are arranged at the same time to control the shear type door, gate break-through resisting force and clamping prevention force of door closing motion are separated, and even wrong judgment of access logic happens, a door plate is only kept at the impact force position of a passenger, and secondary hurt to a human body is avoided; and the requirement for the first drive mechanism can be lowered, and the whole machine cost is reduced.

The invention discloses fabricated multi-stage flexible energy-dissipation height-limiting frames. The fabricated multi-stage flexible energy-dissipation height-limiting frames are arranged in an areaor a traffic safety management area where a road, a bridge, a tunnel, a pipe culvert and the like need to be protected, the positions of the height-limited frames which need to be set are selected according to the field condition, and each height-limiting frame adopts a fabricated structure and is provided with a multi-stage protection and flexible energy dissipation device and is used for reducing the maximum impact force of an impact vehicle, the first-stage protection is a high-damping rubber energy dissipation module on a thin-walled pipe cross beam, the second-stage protection is a shear-type buffer support, and the third-stage protection is a weak point where the thin-walled pipe cross beam is manually set at a flange at the weak end of the cross beam. Through the structural designthat the self-resetting capability is strong, the energy consumption is high, the light weight and modularization are achieved, the replacement and maintenance are convenient, and fabricated type full-bolts are connected, the limited vehicle can be effectively intercepted, vehicle damage is reduced, casualties are avoided, and road traffic safety and smoothness are guaranteed.

The subject matter of the invention is an aspiration drainage system for aspirating secretions and other fluids out of the human or animal body using a suction tube and at least one material depot, arranged at the end of the suction tube to be inserted into the body, for dispensing an antibacterial active ingredient material. The surface of the material depot is larger than the envelope of the material depot. The increased surface of the material depot effects a higher level of the antibacterial active ingredient material and permits effective destruction in situ of both sensitive pathological germs and partially resistant germs.

The invention relates to the field of traditional Chinese medicine, and specifically relates to a drug for promoting recovery after facial nerve injury surgery anastomosis. The drug is composed of the following raw materials in parts by weight: 20 to 35 parts of radix astragali, 5 to 25 parts of poria cocos, 18 to 35 parts of usnea, 18 to 25 parts of sarcandra glabra, 2 to 8 parts of senecio scandens, 10 to 25 parts of bighead atractylodes rhizome, 3 to 8 parts of pawpaw, 10 to 25 parts of humulus lupulus, 3 to 8 parts of lycopodiastrum casuarinoides, 8 to 40 parts of red sage root, and 10 to 35 parts of ligusticum wallichii. The clinical experiment results show that the drug will not generate side effect and secondary harms to human body; red sage root and ligusticum wallichii can prominently promote the recovery of neurological functions after surgery, radix astragali, poria cocos, and sarcandra glabra can relieve the pains, and thus the drug is worth to promote and use.

A secondary battery includes: a battery element; a casing which accommodates the battery element; a positive electrode terminal and a negative electrode terminal provided to the casing and electrically connected to the battery element; and a cut-off portion which switches from a grounded state in which the casing and one terminal of the positive electrode terminal and the negative electrode terminal have an identical potential, to a cut-off state in which the casing and the one terminal are electrically cut off. The one terminal has a facing portion which faces the casing, and the cut-off portion is arranged between the facing portion and the casing. When the casing is externally short-circuited, the cut-off portion switches from the grounded state to the cut-off state by being deformed by heat generated as a short-circuit current flows.

The invention relates to the technical field of electric vehicles, and discloses an electric vehicle collision power-off mechanism and an application thereof. The electric vehicle collision power-offmechanism comprises a shell, a first inner groove is fixedly connected to the top of an inner portion of the shell, and a first magnet is fixedly connected to the right side of the inner portion of the first inner groove. According to the electric vehicle collision power-off mechanism and the application thereof, when a vehicle crashes, a transverse rod continues to move under the action of inertia, the transverse rod enables a vertical rod to move downwards, a first contact and a third contact are further separated, a second contact and a fourth contact are further separated, a circuit between a positive wire and a negative wire is disconnected, and therefore people in a vehicle cannot be secondarily hurt due to electric leakage after the vehicle collides. And meanwhile, a first sliding block and a second sliding block are pulled down, and the vertical rod moves upwards under the action of a first spring so that the first contact is in contact with the third contact, the second contact is in contact with the fourth contact, the circuit between the positive wire and the negative wire is further closed, and the effect of recovering the circuit of the electric vehicle after collisionis achieved.

The invention relates to a portable pneumatic cutter which is used for cutting a metal object limiting a human body or an animal body. The portable pneumatic cutter comprises a movable compressed gas source, a handheld power conversion unit, a cutting unit, a gas circuit connecting pipe and a control unit; the gas source is provided with a pressure control valve and a pressure hose connector; the handheld power conversion unit is provided with a rotating head; the rotating head is provided with a fixture for installing and fixing the cutting unit; the handheld power conversion unit uses the pressure of compressed gas as power for driving the cutting unit to rotate; the cutting unit is a micro grinding wheel with a diameter of 5 to 40mm and can be installed on the rotating head by the fixture; the gas circuit connecting pipe is a plastic pressure hose and is used for connecting the movable compressed gas source, the control unit and the handheld power conversion unit; the movable compressed gas source, the handheld power conversion unit and the gas circuit connecting pipe are connected in a detachable manner by male and female connectors; the control unit controls a rotating speed of the cutting unit. The portable pneumatic cutter cannot generate obvious damage to the muscle body of the human body or the animal body under the condition of effectively cutting the metal object, and is simple, practical, portable and safe.

The invention discloses an extraction method for bone collagen. The method is characterized in that an extraction mode of boiling out bovine shin and hoof bones with clear water is adopted, so that the defects that the bone collagen extracted by traditional extraction methods such as an acid extraction method, an alkali extraction method and an enzymatic extraction method has harmful residues, a protein structure is damaged and the extraction cost is high are overcome.

The invention discloses an antibacterialeye speculum. The antibacterialeye speculum comprises two expanders which are both provided with an expanding rod and an expanding handle, the expanders are connected to each other at the connection portions of the expanding rods and the expanding handles through a hinge pin and form rotation connection with the hinge pin, the hinge pin is further connectedto one end of a fixing device, the other end of the fixing device is connected to an elastic device, a push block is connected to the lower portion of the elastic device, and the front ends of the expanding rods are connected to support parts fixedly connected to the expanding rods; the surfaces of the two support parts are provided with a polymer antibacterial coating.

The invention relates to the field of medical dressings, in particular to a pure natural medical dressing for promoting wound healing. The pure natural medical dressing for promoting wound healing iscomposed of chlorella powder, royal jelly and reed flowers. After the dressing provided by the invention is smeared on the surface of a wound, a porous structure is formed, and wound seepage can be rapidly absorbed; the dressing forms a breathable and bacteria-blocking physical barrier on the surface of the wound so that bacteria and foreign matters are prevented from invading the wound, and a good wound healing environment is created; the dressing is only composed of chlorella powder, royal jelly and reed flowers, and does not contain any biochemical products such as antibiotics, protease andmetal ions; in the using process of the dressing, no obvious stimulation effect is generated on a wound, no secondary harm is generated on a human body, and meanwhile no allergy or drug resistance isgenerated; moreover, the dressing is simple in processing technology and low in cost.

The invention discloses a softening method aiming at hardened fur cultural relics. The softening method comprises the following steps: A) taking and completely soaking cultural relic samples for 24 hours; B) soaking the samples treated in the step A) in a water bath containing 50wt% ethanol water solution to be treated for one hour; C) soaking the samples obtained in the step B) in a water bath containing a softening agent to be softened for 0.5-2 hours; D) completely soaking the samples treated in the step C) in the water bath containing 50wt% ethanol water solution again to be treated for one hour; E) after taking out the samples treated in the step D), taking a solution of glycerin and ethanol in a mass ratio of 1 to 4, directly smearing the solution of glycerin and ethanol on the surfaces of the samples and removing redundant glycerin with alcohol wipes after standing for 10 minutes; and F) opening and airing the obtained samples. The softening method has the beneficial effects that effects are obvious; the elasticity and other mechanical properties of fur are improved when the softening method is applied to hardened fur; the method is simple, is simple and convenient to operate and can not cause secondary damages to fur cultural relics.

The invention discloses an auxiliary visible light wand for multisource PET CO2 monitoring. The auxiliary visible light wand comprises a handle, a pump body, a medicine bin, a wand body and a bracket.The handle is separately connected with the medicine bin, the pump body and the wand body, and one end of the wand body is connected with a wand head. A lamp and an atomizer head are arranged in thewand head. A circuitron is connected with the external wall of the wand body, one end of the circuitron is connected with a display screen, and the other end of the circuitron is connected with a camera in the wand head. The bracket sleeves the wand body and is fixed to the outer side of an oral cavity or a chin of a patient, and thus, the stability of the wand body is improved. Through the matching of all the components, the interior of a trachea of the patient can be observed during tracheal intubation, and thus, the difficulty resulting from direct laryngoscope intubation is avoided. Through being effectively matched with tracheal intubation, the tracheal intubation can be high in accuracy and short in consumed time, and secondary injury to the patient is difficultly caused. Inflammation diminishing medicines in the medicine bin can be sprayed inside the trachea of the patient through the atomizer head by the pump body, and thus, the aims of alleviating and resisting inflammations and lowering the bacterial infection probability of the trachea and discomfort of the patient are exerted.

The invention discloses a 304 stainless steel pickling passivation agent which is prepared from the following components in parts by weight: 1 to 2 parts of magnesium stearate, 0.1 to 0.4 part of ferric trichloride, 1 to 2 parts of fluosilicic acid, 1 to 2 parts of polyoxyethylene fatty alcohol sodium sulfate, 0.5 to 0.8 part of cocamidopropyl dimethylamine oxide, 0.2 to 0.3 part of triethanolamine, 0.1 to 0.5 part of urotropin, 0.1 to 0.7 part of epoxy octyl stearate and 5 to 15 parts of water. The 304 stainless steel pickling passivation agent has an extremely good effect of removing oxides from a stainless steel surface, and the removal rate can reach 99 percent or above; and the product is mild in nature, cannot cause secondary damage to the stainless steel surface, and has commercial application value.

The invention discloses an antibacterial material with adjustable antibacterial ability and a preparation method thereof and application thereof. The antibacterial material with the adjustable antibacterial ability comprises reduced ferruginous clay with the antibacterial ability and an antibacterial regulator used for adjusting the antibacterial ability of the reduced ferruginous clay; the antibacterial regulator comprises a positive regulator and a negative regulator; and an antibacterial effect can be adjusted according to actual use demands under a condition of being mild to skins. The preparation method of the antibacterial material with the adjustable antibacterial ability, disclosed by the invention, has the advantages of simple operation, easily controlled condition and low requirements on equipment.

The invention provides a newborn nasal oxygen cannula, and relates to the technical field of medical instruments. The nasal oxygen cannula comprises a transmission assembly, a fixing assembly and a water collector. The transmission assembly comprises a connector, a nasal oxygen device, a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are connected through the water collector, one end of the first connecting pipe is connected with the water collector, the other end of the first connecting pipe is connected with the connector, and oneend of the second connecting pipe is connected with the water collector, the other end of the second connecting pipe is connected with the nasal oxygen device, and a nasal plug head in fluid communication with the second connecting pipe is arranged on the nasal oxygen device. The fixing assembly comprises a lap joint piece and a flexible pipe, the flexible pipe is arranged on the nasal oxygen device and rotationally connected with the nasal oxygen device, and the lap joint piece and the flexible pipe are connected with each other. According to the newborn nasal oxygen cannula, the fixing assembly is arranged on the nasal oxygen device, so that the nasal oxygen cannula can be stably fixed to the nose of a patient, the nasal oxygen cannula is prevented from falling off, and bacterial infection is avoided.