31results about How to "Help to open" patented technology

The invention provides a reciprocating type vibratory forced ramming hammer. After the hammer drops once, multi-time vibratory ramming on a pretreatment foundation can be realized, and damages of thefoundation structure are effectively prevented. The reciprocating type vibratory forced ramming hammer provided by the invention comprises a shell, a center vibrator, guide rods, exhaust cylinders andsprings; the inside of the shell is a cylindrical cavity; the center vibrator is arranged inside the shell and is provided with a plurality of first through holes; a plurality of guide rods penetratethrough the first through holes correspondingly; the upper and lower ends of the guide rods are connected with the top and the bottom of the shell correspondingly; guide rod sections below the centervibrator are correspondingly provided with the springs in a sleeving manner; the enter vibrator is also provided with a plurality of second through holes; the bottom of the shell is provided with third through holes corresponding to the second through holes; the top of the shell is provided with fourth through holes corresponding to the second through holes; each exhaust cylinder is of a hollow cylindrical structure of which the two ends are opened; the exhaust cylinders penetrates through the second through holes correspondingly; the two ends of the exhaust cylinders are connected with the third through holes and the fourth through holes correspondingly; and a hoisting hanger is arranged at the center of the outer side surface of the top of the shell.

A vascular prosthesis utilizing drawn-filled tubing (DFT) wire to aid in visualizing the prosthesis without needing supplemental radiopaque material is described.

The invention discloses an extraction process for improving the recovery rate of prickly ash, and relates to a method for extracting food spices. The specific method includes: (1) Zanthoxylum bungeanum pretreatment: compressing Zanthoxylum bungeanum raw materials into tablets, the thickness of which is 0.1-0.5mm; 2) Supercritical CO 2 Fluid extraction: Put the pepper flakes into the extraction tank, when the pressure of the extraction tank rises to 30-35MPa, and the extraction temperature is 45-55°C, feed supercritical CO 2 At the same time, the entraining agent is introduced into the entraining agent, extracted for 2-3 hours, and the extract is obtained; (3) Separation: the extract enters the separation tank for separation, the separation pressure is 6-8MPa, and the separation temperature is 50-55°C to obtain Zanthoxylum bungeanum crude oil and gaseous CO 2 (4) Separating the entrainer from the extracted Zanthoxylum bungeanum crude oil, and finally obtaining the oleoresin containing pianopianin. The process has high recovery rate and simple process.

The invention discloses a special coating for acrylic finishes, and a making method thereof. The special coat comprises a component I and a component II having a same amount with the component II, the component I is formed by a component A and a component B, the component A in the component I comprises modified epoxy resin, a flexibilizer, mica, an assistant and an anti-settling agent, the component B in the component comprises a curing agent and a coupling agent; and the component II comprises polyurethane modified acrylic resin, rutile titanium dioxide, a film forming assistant, purified water, an antifoaming agent, a dispersant, a flash rust inhibitor and a thickening agent. The special coating is obtained by preparing the component I, preparing the component II and compounding the component I with the component II. The coating has the advantages of strong adhesion, unlikely shedding, good impermeability, good corrosion resistance, strong weatherability, unlikely saponification and fast drying, and has a very good protection effect at a low temperature.

The invention discloses an air-assisted selectablejet. The air-assisted selectablejet comprises a valve core and a valve seat, wherein a plurality of jet holes are formed in the circumferential direction of the valve core; the valve core can axially move and is provided with a conical head; an inverted cone cavity which is through in the full-circumferential direction is formed in the valve seat; the inverted cone cavity, an air inlet in the top of the valve seat and a hollow accommodating cavity of the valve core are communicated with one another; the bottom of the inverted cone cavity and each jet hole are gathered at a cavity outlet. By adopting the structure, an atomizing oil beam flowing through the cavity outlet can be in a double-umbrella atomizing state in the full-circumferential direction, so that the atomizing quality is high, and forming of carbon black can be effectively prevented. In addition, due to the communication of the inverted cone cavity, the air inlet and the hollow accommodating cavity, mutual switching operation between air and fluid can be realized by controlling pressure difference between pressurized fluid and pressurized air. Furthermore, the conical head of the valve core can be sealed with the valve seat, so that the carbon black cannot enter the jet, external coke can be tangentially scoured, and the valve core can beopened relatively favorably.

The intelligent manhole cover control system and its working process belong to the control field of wireless remote control. A slave control box will be installed under each manhole cover. Each slave control box has its own address number. There are 8 digital tubes on the slave control box. The first six digits of the digital tube are usually used to display its own number. address, there are travel switches, electromagnets, etc. on the control box, and there will be a master control box in the central control room to communicate with each slave machine, and a wireless remote control is used to open the manhole cover, and The transmitted signal is less susceptible to interference. The invention helps workers to open the manhole cover during maintenance without spending so much time and physical strength; improves the safety of the manhole cover, and there will be an alarm sound when the manhole cover is stolen or illegally opened; compared with other intelligent manhole covers, the cost is reduced , which improves the implementability.