263results about How to "Improve the tightness" patented technology

The present invention proposes an apparatus for making soybean milk, wherein a cover body is connected to the opening of a container, and a fixing tank is extended form the cover body toward the inside of the container. A motor is installed in the fixing tank. A reaming blade is extended from the motor. A through passage is installed downwards from a position away from the center of the cover through the fixing tank to a cup-shaped component. A fixedly-joining device is installed at the inner edge of the opening of the cup-shaped component to be correspondingly joined with a fixedly-joined device installed at the bottom end of the peripheral surface of the fixing tank. The reaming blade is placed in the cup-shaped component. The periphery of the cup-shaped component is formed to be a filtering net. An electro-thermal tube is connected from the bottom edge of the cover into the container. When soybeans are guided in via the through passage, a small sealing cap is used to cover on the opening of the through passage. After the apparatus is turned on, the soybeans are reamed by the reaming blade, and soybean juice flows into the container while soybean lees is left in the cup-shaped component. After water is added and boiled, the cover is removed and a sealing cap is covered on the container. The sealing cap has a filtering net at a position corresponding to that of the conduct mouth of the container such that soybean can be filtered and poured out.

The invention provides a vacuum heat-insulating board which comprises an upper heat-insulating board and a lower heat-insulating board, wherein the peripheries of the upper heat-insulating board and the lower heat-insulating board are welded together through using a welding flux, a closed vacuum layer is formed between the upper heat-insulating board and the lower heat-insulating board, the upper heat-insulating board and the lower heat-insulating board are flattened heat-insulating boards or convex-sided heat-insulating boards, and the convex side of each convex-sided heat-insulating board faces outwards. The production method of the vacuum heat-insulating board provided by the invention is simple in process, and the prepared vacuum heat-insulating board overcomes the defects of the existing heat-insulating board, so that the tightness of a vacuum layer of the vacuum heat-insulating board can be effectively guaranteed, the service life of the vacuum heat-insulating board is prolonged, and the strength and heat insulation, sound insulation and fire prevention properties of the vacuum heat-insulating board can be increased.

The present invention relates to a vacuum glass, which is characterized in that peripheries of an upper glass and a lower glass of the vacuum glass comprise edge sealing strip frames, and a metal welding material or an alloy welding material is adopted to integratedly weld the upper glass and the lower glass in a vacuum edge sealing furnace, such that vacuum glass manufacturing is simple, and a sealing effect is ensured through engagement of the upper edge sealing strip frame and the lower edge sealing strip frame. The manufacturing method has characteristics of simple process, low cost, high production efficiency, reliable sealing and good sealing effect. With the technology, large mass manufacturing of the vacuum glass with no gas exhaust port through the one-step method can be achieved. In addition, with the method, the universal vacuum glass can be manufactured, and the tempered vacuum glass can be manufactured.

The invention relates to vacuum glass. The vacuum glass is characterized in that each of upper glass and lower glass is convex surface glass, edge sealing strip frames are arranged at the welded peripheries of the upper glass and the lower glass, and the upper glass and the lower glass are welded together by utilizing metal or alloy solder in a vacuum edge sealing furnace; and the manufacturing of the vacuum glass is simpler and more convenient, and the matching of the upper and the lower edge sealing strip frames can ensure a good sealing effect. The method has the advantages of simpleness in manufacturing process, low cost, high production efficiency, reliability in sealing and connecting and good sealing effect; the one-step large-batch preparation of the vacuum glass without exhaust ports can be realized by utilizing the technology, and the manufactured vacuum glass is strong in resistance to wind pressure and good in heat insulation and sound insulation; and the method can be used for manufacturing the ordinary vacuum glass and is particularly suitable for manufacturing tempered vacuum glass.

The invention discloses an explosion-proof positive pressure power distribution cabinet. The explosion-proof positive pressure power distribution cabinet comprises: a housing, an air inlet and an airoutlet which are formed in the housing, an air inlet pipe assembly disposed at the air inlet, and an explosion-proof deflation assembly disposed at the air outlet; the air inlet pipe assembly comprises: an air inlet pipe, a first suction fan disposed at an inlet of the air inlet pipe, and an electromagnetic valve disposed on the air inlet pipe; the explosion-proof deflation assembly includes a ventilating box which is fixed on the air outlet and having a first through hole, a ventilating cover which is corresponding to the first through hole and has a second through hole, a second suction fandisposed on the ventilating cover, a sealing assembly for sealing the first through hole, and an electronic telescopic rod for controlling the opening and closing of the first through hole and connected to the sealing assembly. The invention can seal the power distribution cabinet, can prevent external moisture, flammable and explosive gas, and dust from entering the power distribution cabinet, can monitor the pressure and the temperature of the power distribution cabinet in real time, and can automatically realize explosion-proof decompression and heat dissipation; the safety is improved, theautomatic level is improved, and the manpower burden is reduced.

The invention provides a vacuum ceramic thermal baffle. The thermal baffle comprises an upper thermal baffle and a lower thermal baffle, wherein the peripheries of the upper and lower thermal baffles are welded together by metal or alloy solders; a closed vacuum layer is formed between the upper thermal baffle and the lower thermal baffle; and the upper and lower thermal baffles can be flat, flat externally and concave internally, or convex. A manufacturing method of the vacuum ceramic thermal baffle is simple in process. According to the invention, the manufactured vacuum ceramic thermal baffle can overcome defects of the conventional thermal baffle, the air tightness of the vacuum layer of the thermal baffle can be effectively ensured, the service life of the thermal baffle can be prolonged, the strength, sound insulation and fireproof performance of the thermal baffle can be improved, and the thermal baffle also can achieve a good decoration effect.

A five side independent showcase for diplaying cultural heritages is used for diplaying and holding cultural heritages of clothes, accouterment, ceramics, weapons, folding screens or calligraphy and painting, etc. The showcase is composed of a lower structure frame and an upper display portion, a height adjusting component and foot wheels are mounted at a bottom of the lower structure frame, the upper displaying portion is above the lower structure fram, five sides of front, rear, left, right and upper side are formed by transparent glass, the showcase is characterised in that: LM guide tracks are fixed at left and right sides in the lower structure and parallel along front and rear directions; a pair of slidable LM guide bearings are mounted on each LM guide track of the two sides; two supporting components are fixed and mounted at left and right sides of a front end of a movable plate respectively, supporting bearings with ''C''-shape sections are mounted inside the supporting components; slide rollers are passed through and mounted in the supporting bearings, and are capable of sliding in left and right sides and rotating; combined components are assembled on the slide roller by nuts via opening portions of the supporting compoents and are fixed at an inner side of a front supporting frame which supports a lower end of a front glass door.

The invention discloses vacuum glass. The vacuum glass is characterized in that upper glass and lower glass are convex; the peripheries of the upper and lower glass are provided with edge sealing strip frames; and the upper and lower glass are welded together by low-temperature glass solders in a microwave oven, so that the vacuum glass is simpler and more convenient to manufacture, and a sealing effect is ensured by the embedding combination of the upper and lower edge sealing strip frames. A manufacturing method of the vacuum glass provided by the invention is simple in process, low in cost and high in production efficiency, can ensure reliable sealing connection and the good sealing effect, can be used for manufacturing vacuum glass without extraction openings in mass by virtue of a one-step method, and can be used for manufacturing common vacuum glass and tempered vacuum glass.

A side channel compressor comprises at least one annular and two semi-shell type housing (1) which encloses a rotary turbine wheel (3) supported therein and is provide with an air intake and an air discharge pipes (6, 7), the housing of the turbine wheel is provided with two same semi-housings (2) joined together at planes (25) via planar separation surfaces at right angles to the rotation axis (10) of the turbine wheel (3), an annular ring (28) is arranged in the plane (25), and the two semi-housings (2) are aligned by the ring.

The invention relates to a shared box, a sharing method and a sharing system. The sharing box comprises a box body, at least one two-dimensional code and at least one coded lock, wherein the two-dimensional codes are arranged on the outer surface of the box body, and the two-dimensional codes are used for identifying characteristic codes, identical to one another, of the shared box; the characteristic codes are used for matching passwords for opening the coded locks from a database of a server, and each coded lock is arranged at an opening of the box body. According to the shared box, the sharing method and the sharing system, the passwords for opening the coded locks on the box body are obtained through the two-dimensional codes arranged on the box body, an express box can be repeatedly used, the sharing effect is achieved, the use of disposable cartons is reduced, and resources are saved; by arranging the coded locks, the safety of the shared box can be improved, and the safety of articles in the box can be guaranteed.

The invention relates to a multi-stage detection self-tightening protection system for preventing wellhead packing from leaking, which comprises a packing gland automatic tightening mechanism, a three-stage novel packing gland and a control system, the control system is respectively connected with the packing gland automatic tightening mechanism and the three-stage novel packing gland, and the control system is connected with the packing gland automatic tightening mechanism and the three-stage novel packing gland. The packing gland automatic tightening mechanism is used for automatically tightening packing according to set torque, the three-level type novel packing gland is used for preventing an oil and gas wellhead from being directly connected with the outside, and the control system is used for remotely controlling the packing gland automatic tightening mechanism and the three-level type novel packing gland to work so as to prevent the wellhead packing from leaking. Therefore, oil well mouth oil gas leakage can be firstly prevented and then treated through the pressure sudden change value and the torque adjusting amount, the environmental protection problem of oil well mouth oil gas leakage is thoroughly solved, and oil gas yield increasing and green and clean production are achieved.

The invention discloses a bristle binding method of a painting brush or writing brush, relating to the technical field of production processes of Chinese painting brushes. The method comprises the following steps of: firstly, prebinding the root of a bristle bundle by using a rope; then, melting the root of the bristle bundle by using an electric iron; and tightening the rope after the root of the bristle bundle is melted because of heated. Through the melting of the electric iron, the root of the bristle bundle is heated, melted and bonded so that the roots of bristles in the bristle bundle are mutually adhered to be not easy to fall off. In addition, the bristle bundle is heated and softened so as to be beneficial to the secondary tightening of the rope to improve the binding degree. Therefore, the method provided by the invention can be used for easily binding the rope and ensuring that the painting brush or writing brush has no bristle falling phenomenon in the using process, the service life of the painting brush or writing brush is prolonged, and the handwriting or painting quality can be improved.

The present invention discloses a kind of gas exhaust guiding structure of closed compressor, and features that the lower bearing board has at least one formed first gas flow path, the upper board has at least one formed third gas flow path, and the cylinder wall in the engine recovering flow path side has at least one formed second gas flow path communicated with the first gas flow path and the third gas flow path, so that the compressed gas from the lower silencer may be exhausted to the inner cavity of compressor casing through the first gas flow path, the second gas flow path and the third gas flow path successively. The advantages of the present invention include reduced length of rotating compressor shaft, reduced input power, lowered manufacture cost and decreased vibration noise of compressor.

The present invention relates to a laser welding method for establishing connection of plastic pipe (2) with plastic part (3), the method involves sticking together an end (4) of a plastic pipe (2) with an end (5) of a plastic part (3) in an overlapping manner, where the ends respectively exhibit an inner dimension (6) and/or outer dimension (7) in the area of connection of the plastic pipe with the plastic part, largest outer dimension of the ends lying inside the area of connection is larger than lowest inner dimension of the ends lying outside the area of connection, a contact pressure is formed between the ends, thus heat contact each other in the laser welding process is reinforced. According to the invention, the laser welding method is characterized in that installation ends (4) of the plastic pipe (2) and the plastic part (3) is mainly composed of polyamide without core shaft fixation, simultaneously the laser beam for welding is guided around the fixed pipe contact.

The invention provides a low-altitude heat-insulating board which comprises an upper heat-insulating board and a lower heat-insulating board, wherein the peripheries of the upper heat-insulating board and the lower heat-insulating board are welded together through using a welding flux, a closed low-altitude layer is formed between the upper heat-insulating board and the lower heat-insulating board, the upper heat-insulating board and the lower heat-insulating board are flattened heat-insulating boards or convex-sided heat-insulating boards, and the convex side of each convex-sided heat-insulating board faces outwards. The production method of the low-altitude heat-insulating board provided by the invention is simple in process, and the prepared low-altitude heat-insulating board overcomes the defects of the existing heat-insulating board, so that the tightness of a low-altitude layer of the low-altitude heat-insulating board can be effectively guaranteed, the service life of the low-altitude heat-insulating board is prolonged, and the strength and heat insulation, sound insulation and fire prevention properties of the low-altitude heat-insulating board can be increased.

The invention relates to a preparation method of an easy-to-clean anti-pollution water-based automobile leather treatment agent. The preparation method comprises the following steps: preparing the following reaction raw materials in parts by weight for later use: 30-50 parts of waterborne polyurethane resin, 5-20 parts of self-extinction resin, 1-3 parts of a leveling agent, 1-5 parts of a wax emulsion, 1-5 parts of a hand feeling agent, 1-5 parts of silicon dioxide extinction powder, 1-3 parts of a thickener and 30-50 parts of deionized water; adding 30-50 parts of waterborne polyurethane resin and 5-20 parts of self-extinction resin into a reaction kettle, increasing the temperature to 60-90 DEG C at the rotating speed of 50-80 rpm, and performing heat preservation for 10-50 min; adding1-5 parts of silicon dioxide matting powder, increasing the rotating speed to 85-100 rpm, and performing stirring for 10-50 minutes; adding 1-3 parts of a leveling agent, 1-5 parts of a wax emulsion,1-5 parts of a feeling agent and 1-3 parts of a thickener, increasing the rotating speed to 105-120 rpm, and performing stirring for 10-50 min; and adding 30-50 parts of deionized water, performing stirring for 20-40 minutes, and performing cooling and discharging. The preparation process is simple, and the preparation process is stable.