36results about How to "Not easy to hold" patented technology

The invention provides a clamping piece of a file plate holder. The clamping piece comprises a clamping seat which is provided with a bottom plate, a tubular hole on one side of the bottom plate and a pressing rod, the pressing rod is provided with a hinged edge, a pressing strip edge and two side edges, and the pressing strip edge and the bottom plate are separated to form an opening state or contacted to form a closing state; the clamping piece is also provided with a shaft and a meshing part which are arranged on the side of the pressing strip edge and the side of the tubular hole respectively; when the pressing strip edge is at the opening state, the distance between the shaft line of the shaft and the meshing part is shorter, and when the pressing strip edge is at the closing state, the distance between the shaft line of the shaft and meshing part is longer; and the clamping piece is also provided with a connecting piece, one end of the connecting piece is provided with a shaft hole and hinged with the shaft, while the other end is a connecting part and can be connected with or separated from the meshing part, and the distance between the shaft line of the shaft hole of the connecting piece and the connecting part is the same as that between the shaft line of the shaft and the meshing part when the pressing strip edge is at the opening state. By the clamping piece, a user can conveniently load paper or get paper, and hardly gets hurt.

The invention relates to the technical field of forging, and proposes a forging die, which includes a movable die and a fixed die, and also includes a discharge assembly. The discharge assembly is arranged on the fixed die, and a linkage member is slidably arranged on the fixed die. The movement of the movable die drives the linkage to slide, and the linkage is used to drive the unloading assembly to unload. The unloading assembly includes a rotating part, and there are two rotating parts, both of which are rotatably arranged on the fixed die. , the linkage member slides to drive the rotating member to rotate, and the two rotating members, the fixed mold and the movable mold together form a cavity, and the receiving tray is located below the cavity for receiving the Forged parts in the cavity. Through the above technical solutions, the problem of difficulty in removing the round steel forging from the die in the prior art is solved.

The invention relates to an automatic installation robot for an agricultural plastic film greenhouse. The automatic installation robot comprises a mainboard, two arch bar installation devices and a connection pipe fixing device. The two arch bar installation devices are installed at the left end and the right end of the mainboard. The connection pipe fixing device is installed at the upper end ofthe mainboard. By adoption of the automatic installation robot, the difficult problems that when arch bars are connected through a connection pipe in the prior art, manual installation is required, the process is tedious and complex, the arch bars and the connection pipe cannot be connected by one single person easily during installation, and connection can only be completed by matching with otherpeople; and the arch bars and the connection pipe cannot be stably grabbed easily during installation, the time consumed in the process is long, labor intensity is high and efficiency is low can be solved. The mechanical installation function of the arch bars and the arch bar connection pipe can be achieved, the arch bars and the arch bar connection pipe can be limited automatically, automatic connection is realized, there is no need for multiple people to be matched for operations, and consumed time is short. The automatic installation robot for the agricultural plastic film greenhouse has the advantages of being easy to operate, small in labor intensity, high in working efficiency and the like.

The invention relates to a novel test-tube baby ovum-peeling manipulator, and belongs to the field of manufacturing technology of an ovum peeling device. The novel test-tube baby ovum-peeling manipulator is composed of a handheld press device and an ovocyte sucking device, wherein the handheld press device is composed of a press rod cap, a pen cap, a rear shell, a spring, a press rod and a front shell, and the ovocyte sucking device is composed of an airbag, a poly styrene (PS) tube, a needle seat and an ovum peeling tube. The airbag, the PS tube, the needle seat and the ovum peeling tube are successively installed on the lower-middle portion of the rear shell from top to bottom, and a push button connected with a slide fastener is installed in the middle of the front shell. According to the novel test-tube baby ovum-peeling manipulator, the PS tube of the ovocyte sucking device is fixed inside grooves inside the front shell and the rear shell, the airbag is pressed to produce balanced sucking force during a using process, and other portions do not move. The novel test-tube baby ovum-peeling manipulator resolves the problem that granule cells on the periphery of an ovocyte cannot be sucked accurately or an embryo or the ovocyte cannot be transferred accurately through an existing test-tube baby ovum-peeling manipulator.

The invention provides a portable terahertz time domain spectrograph which comprises a femtosecond pulse laser module, a light path climbing module, a terahertz emitting module, a terahertz detection module, a data processing and instrument control module and a power module, wherein the femtosecond pulse laser module is used for outputting terahertz pump light and detecting light; the light path climbing module is used for controlling a terahertz transmission light path; the terahertz emitting module is used for generating terahertz pulse; the terahertz detection module is used for detecting terahertz spectral information of a carried sample; the data processing and instrument control module is used for collecting and analyzing terahertz time-domain spectroscopy data; the power module is used for supplying power. The portable terahertz time domain spectrograph has the advantages that the structural features of a gold plating off-axis paraboloid lens are utilized to spatially design the terahertz transmission light path into an upper and lower two-layer folding structure and the plane size of the terahertz time domain spectrograph is greatly reduced.

The invention discloses a composite waterproof hammer air valve group with rear adjustment type separate orifices. The air valve group is installed on a liquid conveying pipe or a container system and comprises a high-speed air inlet and outlet valve, the negative pressure air suction second one-way orifice, a check valve, an outlet end rear air outlet adjustment valve, the second one-way air outlet orifice and a trace air outlet valve, wherein the trace air outlet valve is connected with a lateral boss drill hole of the high-speed air inlet and outlet valve through threads or a flange; the negative pressure air suction second one-way orifice and the check valve are connected to the right upper portion or upper portion of a valve cover above the high-speed air inlet and outlet valve; the high-speed medium-amount second one-way air outlet orifice and the air outlet adjustment valve are connected to the middle top or right upper portion of the valve over above the high-speed air inlet and outlet valve; and the second one-way air outlet orifice of the air valve group is adjusted and controlled by the air outlet adjustment valve. The air valve group can not only suck a large amount of air at high speed through the large orifice, but also exhaust a medium amount of air at high speed through the medium-sized orifice.

The invention discloses a numerically controlled machine tool fixture used for machining motor casings, which relates to a fixture and is used to solve the problem that ordinary fixtures easily cause deformation when clamping a casing, including a hydraulic three-grip chuck installed on a machine frame, It also includes a centering support block fixed on the claws of the hydraulic three-grip chuck, the number of the centering support blocks is equal to the number of the claws, and a plurality of centering support blocks are spliced ​​together to form a hollow centering column; the present invention has the following advantages and effects: the centering support block in the form of inner support can correct the casing in the process of supporting the casing, reducing the deviation of the central axis of the casing during the positioning process, so as to facilitate subsequent alignment Find the position of the central axis of the casing when cutting, and improve the coaxiality between the shaft hole on the casing and the inner cavity of the casing, so as to achieve the purpose of reducing the scrap rate of the casing.

The invention relates to a clamp (1) for fastening and connecting tubes (2,3), especially for fastening a connecting tube to a heat exchanger in a motor vehicle. At least one terminal area (8) of the inventive clamp (1) is bent back.

A construction method of reinforcing a large-span concrete structure with prestressed carbon fiber sheet comprises the following steps of forming bolt embedding holes on the side surface to be reinforced of the large-span concrete structure, and embedding high-strength bolts of different specifications into the bolt embedding holes through adhesive glue; fabricating stretch sheet fixing portions, stretch sheet moving portions and stretch power fixing portions; mounting the stretch sheet fixing portions, stretch sheet moving portions, stretch sheet assembling units, stretch power fixing portions and stretch power portions, wherein the stretch sheet assembling units, the stretch power fixing portions and the stretch power portions are made of carbon fiber materials; stretching stretch sheet; and removing stretching power and tightly pressing and adhering the stretch sheet onto the surface of the large-span concrete structure. The construction method of reinforcing the large-span concrete structure with the prestressed carbon fiber sheet can achieve the gapless adhesion between the prestressed stretch sheet and the concrete structure to be reinforced, facilitate the coordination of the uniform stress force of the same sections of the carbon fiber filaments of the stretch sheet, improve the integral stress performance of the prestressed carbon fiber sheet and the coordination deformation capability of the prestressed carbon fiber sheet and the concrete structure and give full play to the high-strength characters of the carbon fiber sheet.