98results about How to "Prevent tear damage" patented technology

This invention relates to a cleaning cylinder for cleaning beds or carpets, and apparatus and method for manufacturing cleaning cylinder, providing the cleaning cylinder, in which the adhesive tape is hard to torn even if the hairs or the like are adhered to the winding direction (longitudinal direction) of the adhesive tap, and the smudgy adhesive tape can be easily changed, and apparatus and method for manufacturing cleaning cylinder. In this invention, the cleaning face of the adhesive tape continuously forms the adhesive side of the adhesive layer in the adhesive tapes of multiple layers wound at the outer circumference of the wound roll, inside which is the non-adhesive side. The non-adhesive separating paper having a certain thickness and width and stronger extending intensity is adhered to the transverse direction and longitudinal direction of the adhesive side. The staring position of the separating paper is provided with a tearing opening. An overlapping part is formed at the overlapped part of the width 1 / 2 of the separating paper, thereby easily tearing and changing after being used.

The invention provides an anti-wind hair drier, belonging to the technical field of machinery, and aiming at solving the problems that the existing hair drier is easy to wind, low in safety and short in service life. The anti-wind hair drier comprises a housing with an air blowing passage, wherein the air blowing passage of the housing is internally provided with an electric motor, fan blades and an electric heating element; the fan blades are positioned at the inlet section of the air blowing passage and is fixedly connected with the rotating shaft of the electric motor; the inlet section of the air blowing passage is provided with a hair cutting knife capable of cutting the hair sucked in the air blowing passage; and the hair cutting knife is fixedly connected with the rotating shaft of the electric motor. The anti-wind hair drier is capable of cutting the hair sucked in the air blowing passage instantly so that the hair is prevented from being further sucked; and the anti-wind hair drier is good in safety, long in service life and good in comfortableness.

The invention discloses a narrow rock wall crane beam excavation method. The method comprises the steps that after excavation of a cavern top layer is completed, excavation of a cavern rock wall cranebeam layer is conducted in a partitioned mode from the middle to the two sides; firstly, a middle groove area is excavated, protective layers on the two sides are stripped at a time, and after supporting is completed, pre-splitting blasting excavation is conducted on inclined face holes of a rock table, and blasting holes are drilled and blasted from a side wall of a cavern along a designed inclined face of the rock table and perpendicular to the trend axis of the cavern for drilling hole blasting; and then horizontal smooth blasting of a straight side wall on the rock table is conducted, andthe blasting holes are horizontally drilled and blasted in the direction parallel to the excavation direction of the cavern for horizontal drilling hole blasting. According to the narrow rock wall crane beam excavation method, pre-splitting blasting is carried out on the inclined surface in advance, inclined surface cracks and turning points of a rock wall crane beam are formed in advance, the situation that horizontal smooth blasting must be adopted to tear and damage a rock mass when side wall vertical smooth blasting cannot be implemented can be avoided, rock table forming quality is improved, and meanwhile rock table rock mass quality is improved; and in addition, vertical holes and inclined holes do not need to be aligned one by one, and only the depth needs to be strictly controlled, so that the workload of surveying, setting-out and checking is reduced.

The invention relates to an implanting instrument with bionic micro-thorn attachment structures. The implanting instrument at least comprises an attachment frame, wherein the attachment frame is a self-expanding type support or a ball-expanding type support and comprises a plurality of frameworks and a plurality of bionic micro-thorn attachment structures; the bionic micro-thorn attachment structures are arranged on the outer surfaces of the frameworks; the bionic micro-thorn attachment structures are in the form of bionic plant surface sparse micro-thorns; each bionic micro-thorn attachment structure comprises a thorn root and a micro-thorn; each micro-thorn is composed of a thorn body and a thorn tip; each micro-thorn is linear or J-shaped or the combination of the linear micro-thorn andthe J-shaped micro-thorn; and the thorn bodies and / or the thorn tips of the micro-thorns can touch cavity tissue to achieve an attachment type anchoring function. The implanting instrument is wide inapplication range, free of anchoring damage, firm and high in safety.

The invention discloses a square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint. The square steel tube concrete column-steel beam outer ring sleeve plate bolt connection joint comprises a square steel tube, the square steel tube is sleeved with an upper outer ring sleeve plate and a lower outer ring sleeve plate, the upper outer ring sleeve plate comprises an upper short sleeve, an inner surface of the upper short sleeve is connected with the square steel tube, an outer surface of the upper short sleeve is connected with an upper outer ring plate, the lowerouter ring sleeve plate and the upper outer ring sleeve plate are of the same structure, the lower outer ring sleeve plate comprises a lower short sleeve and a lower outer ring plate, and a steel beam is connected between the upper outer ring sleeve plate and the lower outer ring sleeve plate. The distribution of a column wall yield line is expanded, the column wall rigidity of a joint domain isimproved, and the contribution of an outer ring plate to the joint bearing capacity under the action of external load is increased; the defect that the rigidity at the joint is insufficient due to thefact that an inner ring plate is not arranged is overcome; by adopting the method, the field operation amount is small, the steel structure construction efficiency is improved, the material utilization rate is increased, and good economic benefits and social benefits are achieved.

The invention discloses a wind resistant clamp allowing upright lockrand roofing boards to move longitudinally. The wind resistant clamp comprises two fixing clamp pieces. Bolt holes are formed in the upper portions of the two fixing clamp pieces; locking bolts are mounted in the bolt holes correspondingly in a penetrating mode; a tong opening is formed in the lower portion of the two fixing clamp pieces; elastic gaskets are fixed on the inner sides of the lower portions, corresponding to the tong opening, of the two fixing clamp pieces; and the bolt holes are long circular holes extending in the longitudinal direction of the upright lockrand roofing boards. By arranging the elastic gaskets at the tong opening, while the roofing boards of the upright lockrand roofing boards at lockrands are limited to open transversely to take the wind resistant effect, the roofing boards at the lockrands are allowed to slide longitudinally; and by adopting the long circular holes to serve as the bolt holes, the roofing boards at the lockrands can be staggered in the longitudinal direction. Therefore, longitudinal constraint force of the fixing clamp pieces to the upright lockrand roofing boards can be released, tearing and destroying of the roofing boards are avoided, and the wind resistant clamp can resist wind and prevent leakage, construction is convenient, and the economic effect is good.

The invention provides an aseismic structure in a double-shell low-temperature in-tank tank. The aseismic structure comprises an anchor belt box, a cover body and an anchor belt, wherein the anchor belt box is arranged in a bearing table foundation, the top end is exposed out of the upper surface of the bearing table foundation and penetrates through an outer tank base plate to be in sealed welding to the outer tank base plate, the cover body is exposed out of the lower surface of the bearing table foundation and seals the bottom end of the anchor belt box, the lower end of the anchor belt penetrates the anchor belt box to be connected with the cover body, and the upper end of the anchor belt is movably connected with an inner tank wall. According to the aseismic structure, the anchor beltpenetrates the anchor belt box in the concrete bearing table foundation to be connected with the exposed cover body, the anchor belt is not in contact with the anchor belt box and is not in contact with the outer tank base plate, and the problem of low-temperature damage of the outer tank and the bearing table foundation due to the fact that cold of a low-temperature inner tank is transmitted toan outer tank and the bearing table foundation is solved; tearing force damage caused by the anchor belt to the outer tank base plate during an earthquake is avoided; the inner tank wall is movably connected to the upper end of the anchor belt, additional tension generated by the anchor belt to the inner tank wall can be avoided, the low-temperature inner tank is fixed during the earthquake, the earthquake force of a tank body is directly transmitted to a pressure bearing platform, and lift-off damage is prevented from being generated on the low-temperature inner tank during the earthquake.

The invention discloses a fabric with good wear-resisting effect. The fabric with the good wear-resisting effect comprises a fabric body, wherein an anti-breakage layer is arranged on the surface of the fabric body, and a wear-resisting layer is arranged on the surface of the anti-breakage layer; the anti-breakage layer comprises a nylon fiber layer; a carbon fiber layer is connected to the surface of the nylon fiber layer in an interwoven mode; and a glass fiber layer is connected to the surface of the carbon fiber layer in an interwoven mode. According to the invention, the anti-breakage layer, the nylon fiber layer, the carbon fiber layer, the glass fiber layer, the wear-resisting layer, a polypropylene fiber layer, a vinylon fiber layer and a polyester fiber layer cooperate with each other, so the advantages of improved tear resistance and improved wear resistance of the fabric are achieved; when the anti-tearing fabric is used for a long time, the anti-tearing performance of the fabric can be effectively improved, and the fabric is prevented from being torn and damaged, so the service life of the fabric is prolonged; and the wear resistance of the fabric can be effectively improved, and the fabric is prevented from being rubbed and damaged, so the service life of the fabric is prolonged.

The invention provides an anti-wind hair drier, belonging to the technical field of machinery, and aiming at solving the problems that the existing hair drier is easy to wind, low in safety and short in service life. The anti-wind hair drier comprises a housing with an air blowing passage, wherein the air blowing passage of the housing is internally provided with an electric motor, fan blades and an electric heating element; the fan blades are positioned at the inlet section of the air blowing passage and is fixedly connected with the rotating shaft of the electric motor; the inlet section of the air blowing passage is provided with a hair cutting knife capable of cutting the hair sucked in the air blowing passage; and the hair cutting knife is fixedly connected with the rotating shaft of the electric motor. The anti-wind hair drier is capable of cutting the hair sucked in the air blowing passage instantly so that the hair is prevented from being further sucked; and the anti-wind hair drier is good in safety, long in service life and good in comfortableness.

The invention relates to the technical field of belt conveying, and discloses a roller mechanism capable of preventing a belt from being torn and damaged, the roller mechanism comprises the belt, and a roller is movably mounted on the inner side of the belt. Through the arrangement of telescopic rods and deflection plates, the belt makes contact with the roller, so that the belt exerts extrusion force on the deflection plates, then the telescopic rods are driven to inwards compress the large elastic pieces, the extruded deflection plates form protrusions on the surface of the roller, and the protrusions are attached to the belt all the time due to the elastic force of the large elastic pieces, so friction force between the roller and the belt is increased, and the belt is prevented from slipping and the working efficiency of the belt is prevented from being affected. Then, when the deflection plates are separated from the belt, the large elastic pieces drive the telescopic rods to reset, then the deflection plates are made to move outwards, the materials in the area are pushed into a collecting groove through the deflection plates moving outwards, the materials are prevented from entering the position between the roller and the belt for the second time, and meanwhile, the reset telescopic rods can drive the piston rod to reset, so that recycling of the device is achieved.

The invention discloses an intelligent stamping machine for an electric charge invoice, and belongs to the technical field of automatic office equipment. The technical problem that an existing automatic stamping machine cannot automatically finish triplicate invoice stamping or triplicate invoice collecting is solved. The intelligent stamping machine for the electric charge invoice comprises an automatic invoice stamping machine and an invoice collecting device. The automatic invoice stamping machine comprises a first conveying mechanism used for conveying a first invoice sheet, a second conveying mechanism used for conveying a second invoice sheet, a third conveying mechanism used for conveying a third invoice sheet, a first drive mechanism used for driving the first conveying mechanism, the second conveying mechanism and the third conveying mechanism, a first control device used for controlling the first drive mechanism to intermittently run, and a stamping mechanism used for stamping the second invoice sheet and the third invoice sheet. The invoice collecting device comprises a fourth conveying mechanism used for conveying the first invoice sheet, and a fifth conveying mechanism used for conveying the second invoice sheet and the third invoice sheet.

The invention discloses a catheter with sleeve film capable of protecting tissue, a preparation method and application thereof. The material is composed of a catheter core and the sleeve film wrappedaround the outer portion of the catheter, wherein the sleeve film comprises an outer layer anti-adhesion layer and an inner layer lubricating layer, and the outer layer anti-adhesion layer and the inner layer lubricating layer are both made from a biomedical material. The catheter with the sleeve film capable of protecting the tissue and the preparation method and application thereof have the advantages that the outer layer anti-adhesion layer of the sleeve film is made from the water-soluble biomedical material, the outer layer can play an anti-adhesion role when the catheter is implanted into the body, and the inner layer material can exert a plasticizer function and a lubrication function after being dissolved by a tissue fluid, so that the tear damage caused by adhesion when tube taking can be reduced, the catheter is suitable for being used as a component material of the lacrimal duct intubation, and the anti-adhesion performance of an existing materials is improved.