119results about How to "Avoid hindrance" patented technology

The invention discloses a magnetorheological fluid multi-stage treatment device and a control method and component manufacturing method thereof and belongs to the technical field of machine manufacturing. The magnetorheological fluid multi-stage treatment device comprises a preposition piston cylinder, a middle piston cylinder, a postposition piston cylinder, a preposition piston, a middle piston, a postposition piston, a preposition filtering box, a middle filtering box, a postposition filtering box, a preposition filtering mesh, a middle filtering mesh and a postposition filtering mesh. The preposition piston cylinder is connected with the preposition piston through a bolt, the preposition bolt is matched with an inner cavity of the preposition filtering box, the preposition filtering box is vertically arranged, and the axis is in the vertical direction; meanwhile, the invention further provides corresponding control method and a key component manufacturing method of the device. According to the magnetorheological fluid multi-stage treatment device and the control method and component manufacturing method thereof, a two-standing three-filtering mode is adopted to filter mixed liquid, the characteristic of the mixed liquid at each stage is fully utilized, and the purpose of fast and thoroughly separating magnetic substances and solvent is finally achieved.

An iron-type golf club head comprising a body with a striking face and a hollow cavity portion, a medallion, and a damping insert that is spaced from, and does not contact any portion of, the striking face is disclosed herein. The damping insert is trapped between the medallion and a support structure that extends from the body of the club head approximately parallel with the striking face, and is at least partially suspended over or in the cavity portion. The structure may be an elongated stiffening member that connects upper and lower portions of the body to one another, or a rectangular lip section. The damping insert is affixed to only one of the medallion and the structure with an adhesive material, and damps vibration in the striking face after the striking face makes contact with a golf ball, while the striking face is rebounding from impact.

The invention relates to a transmission tower climbing robot clamping device for clamping angle steel. The invention aims at providing a clamping device for a transmission tower climbing robot which can effectively clamp angle steel and can overcome obstacles. A climbing robot clamping device for power transmission tower comprises a box body, a transmission mechanism arranged on the box body, a clamping mechanism for clamping angle steel and a tight-pressing mechanism linked with the clamping mechanism arranged on the outside of the box body, the transmission mechanism comprises an electric motor, a gear transmission mechanism driven by an electric motor and a transmission lever one end of which is mounted on the gear transmission mechanism, the other end of the drive lever is fixed on theclamping mechanism, driven by the gear transmission mechanism, the transmission lever can make an S-shaped motion, the clamping mechanism can make a closing and opening action under the driving of the transmission lever to achieve clamping or loosening of the angle steel, and the ejecting mechanism can achieve the clamping and retracting of the angle steel with the closing and opening action of the clamping mechanism.

The present invention relates to the heat treatment process of wrought Mg-Zn-Mn alloy, and features that the heat treatment process includes the following steps: solid dissolving of the extrusion formed alloy material at 400-440 deg.c for 2-4 hr and water quenching to room temperature, heating to 90 deg.c and maintaining for 16-24 hr, further heating to 180 deg.c and maintaining for 12-16 hr, and air cooling to room temperature. The wrought Mg-Zn-Mn alloy through the said heat treatment has greatly raised strength and toughness and wide application range.

The invention provides a Fe-Si-B amorphous alloy-copper laminated composite material and a preparation method thereof. A vacuum diffusion connection testing machine is used, and Fe-Si-B amorphous alloy and copper are welded to form the laminated composite material through a diffusion welding method. In preparation, at super-cooled liquid-phase region temperature of the amorphous alloy, plastic deformation is performed on the amorphous alloy and the copper through pressure effect, connection surface oxidation films are removed, fresh surfaces of the amorphous alloy and the copper are contacted tightly, connection interface diffusion process is promoted through thermal insulation and pressure maintaining simultaneously, and an iron-based amorphous-copper laminated composite material of a large size is prepared under the precondition that crystallization of the amorphous alloy is avoided. By adopting the technical scheme, process parameters are controlled strictly and accurately, and the large-size composite material with good connection performance and broadband shielding performance is obtained.

The invention provides a garbage grading collection cleaning machine, belongs to the technical field of water surface cleaning, and solves the problem of low garbage recycling efficiency caused by slow running of a water surface cleaning machine. The garbage grading collection cleaning machine comprises a boat, garbage recycling channels are formed in two sides of the boat, garbage grading collection devices are arranged in the garbage recycling channels and comprise first inclined screen plates, second inclined screen plates and inclined plates which are sequentially and obliquely arranged onthe boat and spaced pairwise, garbage collection boxes are fixed onto the boat and positioned above the garbage recycling channels, openings for communicating with the first inclined screen plates, the second inclined screen plates and the inclined plates are formed in two sides of the garbage collection boxes, and hole cover components cover the openings and can rotate relative to the garbage collection boxes. Compared with the prior art, running of the boat cannot be hindered by garbage, so that the garbage collection efficiency is improved.

The invention discloses a prefabricated assembled type toughness combined shear wall structure and a construction installation method thereof. Construction is conducted on foundations. The prefabricated assembled type toughness combined shear wall structure comprises a steel plate combined shear wall, steel pipe concrete columns, shear-resistant steel plates, bolts, overhanging plates and anchor rods. The steel plate combined shear wall is attached to the foundations and is provided with a plurality of round holes. The steel pipe concrete columns are fixed to the two vertical side edges of thesteel plate combined shear wall. The shear-resistant steel plates are clamped on the lower portion of the steel plate combined shear wall and are provided with strip-shaped pre-open holes corresponding to the round holes. The steel plate combined shear wall is clamped and fixed between the two shear-resistant steel plates through the bolts. The overhanging plates are fixed to the steel pipe concrete columns. The bottom ends of the anchor rods are pre-embedded in the foundations. Upper rod bodies penetrate through the overhanging plates and then are sleeved with belleville spring sets, and twoends are symmetrically sleeved with limiting steel plates and high-strength nuts. The steel plate combined shear wall has flexural bearing capacity, self-resetting ability is enhanced, and the steelplate combined shear wall also has better toughness in an earthquake.

The invention provides a modified graphene composite polyethylene material, which comprises, by weight, 75-100 parts of polyethylene, 0.5-2 parts of graphene, 1-4 parts of a coupling agent, 4-10 partsof a compatilizer, 0.8-2 parts of a dispersing agent, 2-5 parts of a flocculating agent and 3-5 parts of a stabilizer. Compared with the method in the prior art, the method of the invention has the following characteristics that graphene is used as the antistatic agent and the reinforcing agent, and is organically modified with the coupling agent, the maleic anhydride grafted EVA is used as the toughening compatilizer to form the antistatic toughening and reinforcing system of the polyethylene material, and finally the polyethylene material obtains the stable physical and chemical propertiesthrough the flocculating agent and the stabilizer, so that the composite polyethylene material with good mechanical properties and good antistatic properties is prepared in the case of the feeding ofa small amount of the modifier.

The invention discloses a box culvert relaying pushing system with a pushing frame assembly. The box culvert relaying pushing system is used for pushing a box culvert into a tunnel and comprises a work platform adjacent to an inlet of the tunnel, and at least two sections of box culvert bodies located on the work platform; the box culvert relaying pushing system further comprises at least one pushing device used for pushing the box culvert bodies located in front of the inlet of the tunnel, tension devices used for pulling the box culvert bodies from the second section to the n section inthe first direction, and pushing force devices used for pushing the box culvert bodies entering the inlet of the tunnel partially or totally; each tension device is connected between the correspondingtwo adjacent box culvert bodies; each pushing force device is arranged between the corresponding two adjacent box culvert bodies; each box culvert body is provided with a pushing block structure; andeach pushing device is arranged on the work platform and connected with the pushing block structure of the corresponding box culvert body. The box culvert relaying pushing system can be suitable fortunnel passing in a narrow construction site, and miniaturization of mechanical equipment is achieved.

Disclosed is a municipal crossroads structure, wherein a first artery (1) and a second artery (2) form a central platform (3) at an intersection, the first artery (1) is provided with a low tunnel (4) passing underneath the central platform (3), a cross turning tunnel (5) is diverged from the low tunnel (4), and a height of the two types of tunnels enabling vehicles to pass therethrough is no less than 2 meters and no more than 3 meters. The first artery (1) is separated by the low tunnels (4) into two ground surface lanes (7, 8) which are intended for travel in opposite directions and can be used by large vehicles, the two ground surface lanes (7, 8) are connected on the central platform (3) to form U-turn lanes (9, 10), and the U-turn lanes (9, 10) are located on left and right sides of a straight-on lane of the second artery (2) on the central platform (3). The municipal crossroads structure uses the low tunnels (4), the cross turning tunnels (5) and the central platform (3) to enable split-flow for small and large vehicles and vehicles travelling in different directions, such that a large number of small vehicles can travel without being caught in a traffic jam, and traffic is smooth across the whole crossroads.

The invention relates to an electronic baking device. The electronic baking device comprises an extractor and a heater; the extractor includes a baking member, and the baking member is enclosed as anaccommodating cavity for accommodating an aerosol generating substrate; the heater includes a power source assembly, and a first heating element and a second heating element arranged on the power source assembly; the first heating element extends into the accommodating cavity and heats the aerosol generating substrate, and the second heating element is located outside the accommodating cavity; wherein, when the second heating element works, the first heating element stops working. Through providing the second heating element, the residual material on the first heating element can be removed toachieve the cleaning of the first heating element; and meanwhile, in the process of removing the residual material, only the second heating element works to generate heat, and the first heating element is in a stopped state without generating heat, therefore, the working time and load of the first heating element are reduced, and the service life of the first heating element is increased.

The invention discloses a continuous bubble scraping type multilayer inflatable bottom transmission type flotation machine. The flotation machine comprises a flotation groove; a mechanical stirring device, an annular column type micro-bubble generator and a bubble scraping device are arranged inside the flotation groove; the mechanical stirring device is located below a mineralized bubble foam layer; the annular column type micro-bubble generator is arranged on the periphery and the upper part of an impeller in a three-layer annular column type mode, air is transversely led into a bottom circular ring of the micro-bubble generator through an opening in the side part of the bottom of the flotation groove, and the purpose of inflation is achieved; the bubble scraping operation adopts two scraping plates for continuous scraping alternatively, and a long-stroke transmission belt wheel is matched. According to the flotation machine, the existing flotation machine mechanical stirring deviceis arranged at the bottom, the problems of middle foam stagnation and secondary sedimentation of mineralized particles are solved, so that the flotation index is improved; the annular column type micro-bubble generator is used as an air inflation device so that the diameter of the bubbles can be reduced, the sedimentation area is reduced, and the foam layer is stable and controllable; and the scraping plates of the flotation machine are two alternative scraping plates, and the belt wheel transmission is adopted, so that the mineralized foam can be timely and continuously scraped, the secondarysedimentation is prevented, and the flotation recovery rate is improved.

The invention discloses a chair with the massage function and relates to the technical field of chairs. The chair comprises a chair body, a cushion is arranged on a backrest of the chair body, a neckkneading mechanism used for kneading the neck is arranged on the upper portion of the back side of the backrest of the chair body, a back pounding mechanism used for pounding the cushion is arranged in the middle of the back side of the backrest of the chair body, and a waist pressing mechanism used for pressing the cushion is arranged on the lower portion of the back side of the backrest of the chair body. By means of the neck rubbing mechanism, the back pounding mechanism and the waist pressing mechanism which are arranged on the backrest of the seat, a user is massaged in multiple directions, the massage mode is increased, and the functionality of the seat is improved.