65results about How to "Make sure to remove" patented technology

The invention discloses a structured light self-adapting repeated multi-exposure method in the three-dimensional measuring field. The quality parameters of shot structured light pattern images are used for automatically confirming the exposure time next shooting and judging when shooting is to finish. The concrete method comprises the steps of calculating the quality parameter value of positions on the structured light pattern images, using the quality parameter value of the positions on the structured light pattern images to judge whether the positions reach ideal exposure quality and confirm the exposure time of the next shooting, judging whether shooting finishes through the pixel proportion of the low quality parameters of patterns, and finally conducting data splicing on images of high quality parameters in different exposure time. The method effectively avoids interference of complex conditions of the surface of welding seams on the structured light pattern images, and obtains structured light pattern images which are clear and reliable and do not lack local data so as to improve the accuracy and the stability of three-dimension measurements.

The invention discloses an automobile overload detecting device for a bridge. The device comprises a foundation; a groove is formed in the upper surface of the foundation; a device box is installed inthe groove; a mounting hole is formed in the upper surface of the device box; a plurality of springs are evenly mounted on the inner bottom wall of the device box; the the upper ends of the pluralityof springs are jointly welded to a carrying plate; two unidirectional racks are symmetrically welded onto the lower surface of the carrying plate; two first mounting seats and two second mounting seats are symmetrically welded in the device box; each first mounting seat is coaxially provided with a small sprocket and a winding roller; each second mounting seat is coaxially provided with a large sprocket and a straight spur gear; and each large sprocket and the corresponding small sprocket are jointly sleeved with a roller chain. The automobile overload detecting device for the bridge of the invention has the advantages of ingenious structure and convenient use. According to the automobile overload detecting device for the bridge of the invention, the length of a connection rope released by the winding roller can be increased through a simple mechanical structure; and a gate rod can block an overload automobile by means of the gravity of the gate rod itself.

The invention discloses a bird nest eliminating device used on a high-voltage tower. The bird nest eliminating device comprises a vertical rod and a grabbing mechanism. The grabbing mechanism comprises a box body, a fixed clamping handle, a movable clamping handle, a telescopic spring and a control mechanism. The movable clamping handle and the fixed clamping handle are respectively arranged at the left end and the right end of the box body. The inside of the fixed clamping handle and the inside of the movable clamping handle are respectively provided with a plurality of cleaning needles. The box body comprises a top board, a left side board, a right side board and a bottom board. The bottom of the bottom board is connected with the upper end of the vertical rod. The fixed clamping handle is connected with the top board. The lower end of the movable clamping handle penetrates through a box body chute and extends into the box body. The telescopic spring is mounted in the box body. The control mechanism comprises a traction rope, a reel, a rocking handle, a hook, a guiding wheel and a pulley. The bird nest eliminating device has advantages of simple structure and convenient operation. Not only can integral stable grabbing and movement of the bird nest for preventing scattering or inclination of the bird nest in the grabbing process be realized, but also the bird nest eliminating device is suitable for integral movement of the bird nests with different sizes. The bird nest eliminating device performs functions of effectively eliminating the bird nests on the high-voltage tower and ensuring normal operation of a power grid.

The invention provides a dense medium coarse slime sorting device and a sorting process. Four rows of water spraying nozzles of a raw coal desliming screen of the sorting device are arranged, and the size of screen cuts is 1 mm. Two rows of water spraying nozzles are formed in a fine coal slime vibration arc desliming screen, and screen bars are prismatic. The height of an overflow weir of a TBS sorting machine can be adjusted. A dense medium hydrocyclone is adopted for a main washing process; according to the auxiliary washing process, coal slime sequentially passes through a conical inclined plate settling pond, the TBS classifying hydrocyclone, the TBS sorting machine, an ore concentration arc desliming screen, a clean coal magnetic tail barrel, a concentration hydrocyclone set, the fine coal slime vibration arc desliming screen and a fine coal slime centrifugal machine to obtain clean coal, the fine coal slime is floated to obtain the fine coal, and the rest is tailing. The sorting device enables the dense medium coal selecting process to be further optimized. After the coarse coal slime is separated from a dense medium main washing system, the coarse coal slime sorting process is more reasonably, and the recovery efficiency of the tail fine coal is obviously improved; as a coarse coal slime sorting system is improved, the content of ash in the coarse coal slime is lowered, the dense medium main washing sorting density and the sorting precision are effectively improved, and the effect of dense medium main washing is ensured.

The invention discloses a pretreatment method for an anchor cable group penetrating through a shield driving fracture surface. The pretreatment method comprises the steps of adopting a warehouse-jumping method to construct an artificial wellhole of a preorder; arranging a working platform at a position where the anchor cable can be found, cutting off the anchor cable, and arranging a removing tool on the working platform; adopting the removing tool to loosen and drag out the anchor cable; backfilling the artificial wellhole and recovering the ground; adjusting the orientation and the diameter of the artificial wellhole of a postorder according to the residual anchor cable condition of the artificial wellhole of the preorder, but guaranteeing that a plum blossom connection is formed between the artificial wellhole of the preorder and the artificial wellhole of the postorder; repeating the steps above until all the anchor cables are removed. The pretreatment method adopts the warehouse-jumping method to dig the artificial wellhole and has a flexible hole arrangement, therefore, not only is construction area reduced, but also construction speed is improved; plum blossom connections are adopted between a number of artificial wellholes, continuous construction regions are formed on a shield path so as to ensure that all the anchor cables can be removed. The pretreatment method for the anchor cable group which passes through the shield driving fracture surface belongs to the field of anchor cable removing.

An apparatus for guiding tube processing devices, in particular planing devices, wherein the apparatus is arranged on an outer circumference of the tube to be processed, wherein the apparatus has at least two bands which extend in parallel.

The present invention relates to a surfactant moryoupe and the preparation method and the application of the surfactant, which pertains to the technical field of pharmaceutical industry. The composition is made by extraction, purification and other steps of the tissues of bivalves mollusks, the composition contains rich phospholipid complex of the seafood which is composed of polyunsaturated fatty acids, wherein, the composition includes plasmalogen, active short-chain peptides and amino acids etc. The composition of the present invention has the surface activity of the surfactant, which can be used for preparing the drugs for replacement, therapy during the lack of pulmonary surfactants; furthermore, the invention has no immunogenicity.

The invention discloses a coal chemical wastewater pretreatment device, which comprises a wastewater pool and an oil removal pool, wherein the wastewater pool and the oil removal pool are communicatedthrough a water inlet pipe at the bottom; a plurality of heating rings are arranged on the water inlet pipe; the heating rings are tightly attached to the outer surface of the water inlet pipe; a first guide wheel, a second guide wheel, a third guide wheel and a fourth guide wheel are respectively arranged in the upper end wall and the inner wall of the oil removal pool; a filtering screen is ofa cuboid structure; the end part of a water outlet is contained in the filtering screen; the lower end of a water filtering box is provided with a connecting water pipe. In the wastewater flowing process, heating treatment is performed; the density of oil type substances is greatly reduced, so that the oil type substances float; the oil type substances are sucked by oil sucking cotton and are thenextruded into an oil collecting barrel; next, through the filtering screen in the water filtering box, it is further ensured that the oil type substances are totally cleared away. The coal chemicalwastewater pretreatment device has the advantages that the structure is simple; the operation is stable; the oil removal effect is good; the smooth proceeding of the subsequent wastewater treatment isensured.

A device / system and a method for the treatment of enlarged prostate and other urologic abnormalities are presented. This system enables the simultaneous attachment of several interstitial coaguiative treatment probes as well as an ablative fiber to perform a combined treatment utilizing the intervention time and the time of the localized anesthesia effect in an optimal manner. The amount of tissue removed by the urologist by vaporization can be kept to a minimum, thanks to the (delayed) improvement of the achieved symptom scores resulting from the denaturalizing effect of the interstitial coaguiative fibers. In one preferred embodiment, two or more types of delivery systems are embedded in a single device for achieving optimal tissue ablation and coagulation effects including at least one non-laser source such as microwave energy, capable of producing radiation energy to coagulate tissue and at least one laser source capable of producing radiation to ablate tissue. In another preferred embodiment, device comprises two or more laser sources which emit at adjustable wavelengths controllable by physician according to ablative and coaguiative needs and tissue penetration needs depending on their effective absorption in different tissue components. Wavelengths ranges are chosen such that tissue absorption properties change sensibly with small variations of such wavelengths, based on a steep region of the absorption curve. Radiation may be applied in continuous, semi-continuous or pulsed wave, in different combinations. In another preferred embodiment, optical fiber has a central core for transmitting laser radiation, and a cladding layer about the core that may further transmit other laser radiation of a different or a same wavelength as the core.

The invention relates to a handle device (4) for a motor vehicle having a door handle (5), at least one actuating lever (15, 16) which is mounted to be pivotable about a first shaft (14), a support (6) for mounting the door handle (5), at least one drive lever (17, 18) for coupling the door handle (5) to the support (6), wherein the drive lever (17, 18) is mounted to be pivotable about a second shaft (19), a first bearing section (10, 11) arranged on the support (6) for mounting the actuating lever (15, 16), a second bearing section (20, 21) arranged on the support (6) for mounting the secondshaft (19), at least one guide element for the forced guidance of the door handle (5) and / or the actuating lever (15, 16), a drive, in particular an electric motor for moving the actuating lever (15,16) and / or the drive lever (17, 18), and a door lock which is coupled to the door handle (5), wherein the first shaft (14) is displaceably arranged in the first bearing section and the second shaft (19) is arranged to be stationary in the second bearing section in the assembled state.

The present invention discloses a pruning tool (100) which includes a cutting assembly (102) with a blade arrangement including at least one movable component (104), a drive cable (156) attached to the at least one movable component at a first end (158) of the drive cable which is configured to actuate the at least one movable component, and an intermediate portion (103) coupled to the cutting assembly. Further, the pruning tool includes a handle (126) provided adjacent to the intermediate portion, wherein the handle is configured to be grasped by a user during operation of the pruning tool. The handle has a length in a range of about 0 cm to 30cm. A channel (136) is formed in the handle, wherein a second end (160) of the drive cable is received through the channel.

The invention is directed to an aluminum pipe product method comprising an extrusion step for obtaining an aluminum raw pipe (10) and a drawing step for executing a drawing process of the aluminum raw pipe (10). Before executing the drawing step, a slug removing step for removing aluminum slugs (1) adhering to a surface of the aluminum raw pipe (10) is executed by rubbing off the aluminum slugs (1). This can provide an aluminum pipe production method capable of preventing generation of defect protrusions while improving the productivity.

The invention discloses intelligent nasopharynx biopsy forceps. The intelligent nasopharynx biopsy forceps comprise a forceps rod, a fixing forceps stem, a movable forceps stem, a connecting seat, a compressing spring, fixing rings, an air bag, a forceps head, a clamping head, a sleeve, a front fixing plate, a sleeving rod, a traction pull rope, a pull wire, a pulley, a tension spring, a line pipesleeve, a limiting plate, a lotion spraying hole, a lotion suction hole, a camera, communication pipelines, a baffle plate and an air bag connecting pipe. The intelligent nasopharynx biopsy forceps have the beneficial effects that the traction pull rope and the pull wire are arranged to pull the clamping head, so that the clamping head is conveniently controlled to be opened and closed, the clamping head is distributed in the shape of a lotus flower pedal, and when being closed, the clamping head forms the surrounding shape to guarantee living tissue to be taken down; the camera can convey nasopharynx images to an external display terminal, so that medical personnel can conveniently perform operations; the lotion spraying hole and the lotion suction hole are formed, so that parts where living organisms need to be taken are flushed; and inflation is performed on the inner part of the air bag, so that the air bag is expanded, the nasopharynx parts can be expanded, operations are convenient, the nasopharynx parts can be sealed, and flushing liquid can be prevented from flowing out.

The invention relates to the field of coatings and discloses a hydrolysable protective coating composition, hydrolysable protective coating and a composite protective coating layer. The hydrolysable protective coating composition comprises polyvinyl alcohol, cellulose compounds, silicates, glycerol, phosphoric acid and a wetting agent, wherein the cellulose compounds include one or more of sodiumcarboxymethyl cellulose, potassium carboxymethyl cellulose, sodium hydroxyethyl cellulose, and potassium hydroxyethyl cellulose. Through the hydrolysable protective coating composition, the hydrolysable protective coating and the composite protective coating layer which are environmentally friendly and suitable for automatic demolding can be provided.

The invention discloses an efficient ozone collecting and purifying device. The efficient ozone collecting and purifying device comprises a purifying tower body. The purifying tower body is internallyprovided with a cross separating plate. The interior of the purifying tower body is separated to upwards and downwards arranged atomizing chamber and washing chamber by the cross separating plate. The bottom end of the purifying tower body is provided with an air inlet pipe communicated with the washing chamber. The top end of the purifying tower body is provided with an air outlet communicated with the atomizing chamber. The air outlet is provided with an exhaust blower. The top end of the washing chamber is provided with a spraying device. Multiple first grid purifying plates which are alternately arranged along a vertical direction are installed below the spraying device. The bottom end of the washing chamber is provided with a water collecting tank. The bottom end of the atomizing chamber is provided with an ultrasonic atomization generator and an air pump. The air pump is capable of sucking the air from the washing chamber and blowing into the atomizing chamber. A baffle which ishorizontally arranged is installed above the ultrasonic atomization generator. Multiple flow guiding pipes which are vertically arranged and pass through the baffle are installed below the baffle. The efficient ozone collecting and purifying device is capable of effectively collecting organic waste gases, such as ozone and unpurified VOC, discharged by an industrial device, wherein collected water containing ozone molecules can be used for spray-disinfecting, sterilizing and washing-disinfecting.

Provided is a forced-regeneration treatment method for a DPF that can be used in an engine-driven compressor. When the amount of particulate matter (PM) deposited in a filter element of an exhaust-gas aftertreatment device (DPF) 50, which is provided in an exhaust path 21 of an engine 20 that is provided in an engine-driven compressor 1, becomes equal to or greater than a predetermined forced-regeneration start amount (e.g., 10 g / L) and a forced-regeneration start command is input, a capacity controlling means 30 of the engine-driven compressor 1 is disabled to close an intake valve 12 and to open the discharge side of a compressor main unit 10 to atmospheric pressure, thereby causing the compressor main unit 10 to achieve a low-load state. In addition, the operation mode of the engine is switched to a predetermined forced-regeneration mode to operate the engine at a predetermined regeneration rotation speed and to increase the temperature of the exhaust gas. Thus, the temperature inside the DPF 50 is increased to a temperature equal to or higher than the temperature at which an oxidative catalyst is activated and to a temperature lower than the self-combustion temperature of the PM, thereby forcibly burning the PM deposited in the filter element.

The invention discloses a pretreatment device for high-concentration organophosphorus wastewater, belonging to the technical field of sewage treatment. The pretreatment device comprises a first treatment tank, a screening assembly, a cleaning assembly, a second treatment tank, an electrocatalytic oxidation device, a third treatment tank, a dumping assembly, a stirring assembly, a biochemical reaction tank and three water pumps, wherein the first treatment tank, the second treatment tank and the third treatment tank are all vertically arranged on a horizontal plane; the screening assembly is arranged in the first treatment tank; the cleaning assembly is arranged in the first treatment tank; the electrocatalytic oxidation device is arranged in the second treatment tank; the dumping assembly is arranged in the third treatment tank; the stirring assembly is arranged in the third treatment tank; and the biochemical reaction tank is horizontally arranged on the horizontal plane. According to the device, impurities in wastewater are screened and cleaned through the screening assembly and the cleaning assembly before the wastewater is treated, so influence on subsequent dephosphorization operation is avoided, and dephosphorization operation efficiency is improved.

The invention discloses a self-dedusting monitoring camera lens and a preparation method thereof. An outer surface of a lens of a self-dedusting monitoring camera lens prepared through the preparationmethod is coated with hydrophobic coating, the hydrophobic coating is of a two-layer structure, a surface with a micro-nano multistage coarse structure and low surface energy has super-hydrophobicity, self-cleaning is achieved, and the lens of the monitoring camera can be kept clean for a long time, moreover, a carbon nano tube is modified by acid liquor, thionyl chloride and octadecylamine in sequence through a specific preparation method, the size of the prepared modified carbon nano tube coarse structure is smaller than the wavelength of visible light by 100 nm or above, Mie scattering ofthe light can be avoided, and high transparency is achieved. The method is advantaged in that two groups of electrode patches are adhered to edges, which do not influence a shooting range of the camera, of the two sides of the lens, and dust is completely removed from a surface of the lens by utilizing a three-phase traveling wave electric field.

The invention relates to a chemi-mechanical pulping high-concentration filtrate treatment method. The method comprises the following steps: 1, feeding high-concentration filtrate generated by a chemi-mechanical pulping production line into a chemical pulp hot water tank, adding washing water, and performing mixing; 2, pumping out a mixed solution of the high-concentration filtrate and the washingwater in the chemical pulping hot water tank, feeding the mixed solution into a drum-type vacuum pulp washer, and filtering the obtained pulp layer; 3, feeding a mixed solution of the high-concentration filtrate obtained by filtering the pulp layer in the drum-type vacuum pulp washer and the washing water into a black liquor tank for temporary storage; 4, pumping out the solution in the black liquor tank, mechanically filtering the solution, feeding the filtered solution into the evaporation section of an alkali recovery workshop, and carrying out evaporation concentrating through a multi-effect evaporator; and 5, feeding the evaporated and concentrated solution meeting process requirements into an alkali recovery boiler, combusting the solution, feeding the obtained melt into a green liquor tank, and performing causticization treatment to recover the alkali liquor. Most fine fibers can be removed, the scaling phenomenon of an alkali recovery evaporator is effectively reduced, the evaporation efficiency is improved, and energy consumption is reduced.

The invention discloses an environment-friendly deodorizing agent which comprises the following raw materials in parts by weight: 5-8 parts of ferric citrate, 3-5 parts of dodecylbenzene sulfonic acid, 1-3 parts of fatty alcohol-polyoxyethylene ether, 2-6 parts of zinc chloride, 1-3 parts of EDTA-2Na, 2-5 parts of propylene glycol, 1-3 parts of a corrosion inhibitor, 10-15 parts of a plant extracting solution and 30-40 parts of ethanol. The environment-friendly deodorizing agent is prepared by compounding a chemical deodorant and a plant deodorant, effective molecules in the deodorant contain active components and can effectively capture peculiar smell molecules, and the active components and the peculiar smell molecules are subjected to chemical reactions such as polymerization, decomposition, substitution, replacement and addition, so that the purpose of removing peculiar smell is achieved, and the final product of the reaction is harmless molecules, so that the problems of secondary pollution and the like are solved.

The invention discloses a bird nest eliminating device used on a high-voltage tower. The bird nest eliminating device comprises a vertical rod and a grabbing mechanism. The grabbing mechanism comprises a box body, a fixed clamping handle, a movable clamping handle, a telescopic spring and a control mechanism. The movable clamping handle and the fixed clamping handle are respectively arranged at the left end and the right end of the box body. The inside of the fixed clamping handle and the inside of the movable clamping handle are respectively provided with a plurality of cleaning needles. The box body comprises a top board, a left side board, a right side board and a bottom board. The bottom of the bottom board is connected with the upper end of the vertical rod. The fixed clamping handle is connected with the top board. The lower end of the movable clamping handle penetrates through a box body chute and extends into the box body. The telescopic spring is mounted in the box body. The control mechanism comprises a traction rope, a reel, a rocking handle, a hook, a guiding wheel and a pulley. The bird nest eliminating device has advantages of simple structure and convenient operation. Not only can integral stable grabbing and movement of the bird nest for preventing scattering or inclination of the bird nest in the grabbing process be realized, but also the bird nest eliminating device is suitable for integral movement of the bird nests with different sizes. The bird nest eliminating device performs functions of effectively eliminating the bird nests on the high-voltage tower and ensuring normal operation of a power grid.

The invention discloses an online visual detection system for impurities in bottled liquor. The online visual detection system comprises a mechanical actuator, a visual inspection system and a controlsystem, the mechanical actuator comprises a bottled liquor transfer platform, a turnover mechanism and an eliminating mechanism; the visual inspection system comprises an industrial personal computer, a first sensor, a second sensor, a camera, a first light source and a second light source, and the control system comprises an electrical control box and a PLC. The invention further provides an implementation method of the online visual detection system. The implementation method includes the processes of bottled liquor upright standing transportation, bottled liquor standing upside down, bottled liquor backlighting and shooting, image analysis, dark defect foreign body recognition, bottled liquor upright standing transportation, bottled liquor bottom polishing and shooting, image analysis,bright defect foreign body recognition, test result outputting, and defective product elimination. According to the online visual detection system for the impurities in the bottled liquor and the implementation method of the online visual detection system, the bottled liquor can be detected comprehensively, no matter bright defect foreign bodies or dark defect foreign bodies can be detected correspondingly, defective products are eliminated timely and effectively, and the quality of products is ensured.

The invention discloses a wind tunnel cold leakage monitoring method based on global normal distribution and local outlier factors. The method comprises the steps of obtaining temperature measurement point data of a temperature measurement optical fiber laid on the outer surface of a wind tunnel; performing global anomaly detection on all the temperature measurement points based on normal distribution to obtain global anomaly points; carrying out local anomaly screening on all global abnormal points based on a local outlier factor, and taking the screened local abnormal points as stable cold leakage points; and establishing a cold leakage area by taking all the stable cold leakage points as supports. The invention provides a wind tunnel cold leakage monitoring method based on global normal distribution and local outlier factors to solve the problems that in the prior art, when distributed optical fibers are adopted to monitor the surface temperature of a wind tunnel, the false alarm rate is high and the cold leakage and liquid leakage conditions of the surface of the wind tunnel are difficult to effectively obtain.The purposes of reducing the false alarm rate and effectively detecting cold and liquid leakage on the surface of the wind tunnel are achieved.

The invention provides a method for treating urine to obtain drinking water. The method comprises the following steps: S1, adding a pretreating agent into urine according to a certain proportion, thendistilling, and monitoring the conductivity of a distillate in real time; S2, sequentially filtering the distillate obtained in the S1 by using fiber active carbon and a polypropylene filter membraneto obtain a filtrate; S3, at 120-850 DEG C, oxidizing the filtrate by using a catalyst to obtain gaseous water and carbon dioxide, and condensing the gaseous water into liquid water; S4, through an ion exchange action between freely exchangeable ions in ion exchange resin and homopolar ions in water, treating the liquid water to remove ions other than H<+> and OH<-> in water so as to obtain effluent water; S5, sequentially detecting the conductivity, the pH value, the total organic carbon (TOC) and the total bacterial count of the effluent water obtained in the S4, wherein the effluent watercan be used as the drinking water after the effluent water passes the detection. By the method for treating the urine, provided by the invention, the drinking water with relatively high water qualitycan be obtained, the water production rate is higher than 90%, and the water using cost in a specific environment can be greatly saved.

The invention discloses a technique for removing fluoride from animal bones, and is characterized in that bone dregs are left after extracting albumen and fat from various animal bones, the bone dregs are immersed in and hydrolyzed by diluted acid at a room temperature or in a heating condition to be natural sediments; then the sediments are removed by a centrifugal method or a plate filtering method and clear solution is collected; the clear solution is purified through the 122# resin column to be exchanged and decolored, and is slowly neutralized with 10% of dietary alkali solution to be pH of about 6.5, white bone calcium sediments are obtained after the neutralization; and after centrifuge dripping and dehydration of the bone calcium sediments, defluorinated bone calcium products are obtained. The technique can ensure deeply processed bone calcium products free of or with reduced fluorinate content, thereby enabling the products to be in compliance with the national standard.

The present invention discloses a pruning tool (100) which includes a cutting assembly (102) with a blade arrangement including at least one movable component (104), a drive cable (156) attached to the at least one movable component at a first end (158) of the drive cable which is configured to actuate the at least one movable component, and an intermediate portion (103) coupled to the cutting assembly. Further, the pruning tool includes a handle (126) provided adjacent to the intermediate portion, wherein the handle is configured to be grasped by a user during operation of the pruning tool. The handle has a length in a range of about 0 cm to 30cm. A channel (136) is formed in the handle, wherein a second end (160) of the drive cable is received through the channel.

The present invention relates to a cleaning device for looms, which comprises at least one discharging or sucking device for fiber fuzz. The discharging or sucking device is provided with at least one sucking opening and is provided in a reversing area of weft. According to the invention, the discharging device (12) is provided with at least one open housing (14,16). The housing is at least partially provided below the weft (32) and / or provided in the reversing area, wherein the housing (14,16) is provided with at least one sucking opening (30) which generates an air flow that comes from at least one housing opening to the sucking opening (30) through the weft (32).

The invention discloses a head-mounted device, and the device comprises a housing which is provided with a smoke exhaust port communicated with the outside, and a smoke exhaust channel communicated with the smoke exhaust port; a battery bin which is arranged in the housing, is provided with a battery jar and a smoke outlet hole communicated with the battery jar, wherein the battery jar is used for installing a battery, and the smoke outlet hole can be communicated with the smoke exhaust channel; and a fan which is arranged in the smoke exhaust channel, wherein when the battery is burnt, the fan can guide smoke to be exhausted to the outside through the smoke exhaust channel. According to the technical scheme, the smoke can be timely discharged to the external environment when the battery is burnt, so that the safety performance of the head-mounted device is improved.

The invention relates to the technical field of clothing production and particularly relates to a rope head edge folding device. The device comprises a workbench, wherein a baseplate is installed on an upper end face of the workbench in a dismountable manner; and a vertical plate is fixedly disposed on the top end of the baseplate. The device is characterized in that a sleeve is in horizontal androtatable connection to one side of the vertical plate; an assembly rod is movably inserted in the sleeve; an edge folding part is integrally disposed on an end part of the assembly rod; the edge folding part comprises a steel sheet and edge folding heads; one end of the steel sheet is vertically and fixedly disposed on one end, remote from the sleeve, of the assembly rod; the two edge folding heads are mutually parallel, and adjacent clearance can be used for horizontal / vertical insertion of a rope head; an end part of each edge folding head is fixed with the other end of the steel sheet; andclearance, remote from a side wall of the other edge folding head, of each of the two edge folding heads is equal to an edge folding width. The device provided by the invention has the beneficial effects that an edge folding operation can be completed accurately and efficiently; working efficiency is increased; specifications of rope head edge folding finished products are kept uniform; and quality is better.

The invention discloses a pretreatment method for an anchor cable group penetrating through a shield driving fracture surface. The pretreatment method comprises the steps of adopting a warehouse-jumping method to construct an artificial wellhole of a preorder; arranging a working platform at a position where the anchor cable can be found, cutting off the anchor cable, and arranging a removing tool on the working platform; adopting the removing tool to loosen and drag out the anchor cable; backfilling the artificial wellhole and recovering the ground; adjusting the orientation and the diameter of the artificial wellhole of a postorder according to the residual anchor cable condition of the artificial wellhole of the preorder, but guaranteeing that a plum blossom connection is formed between the artificial wellhole of the preorder and the artificial wellhole of the postorder; repeating the steps above until all the anchor cables are removed. The pretreatment method adopts the warehouse-jumping method to dig the artificial wellhole and has a flexible hole arrangement, therefore, not only is construction area reduced, but also construction speed is improved; plum blossom connections are adopted between a number of artificial wellholes, continuous construction regions are formed on a shield path so as to ensure that all the anchor cables can be removed. The pretreatment method for the anchor cable group which passes through the shield driving fracture surface belongs to the field of anchor cable removing.