11results about How to "Adjustable volume" patented technology

The invention provides a three-dimensional continuous diamond / metal composite material as well as a preparation method and application thereof, and more specifically, the three-dimensional continuous diamond / metal composite material is constructed by a three-dimensional continuous diamond network and a metal network in an interpenetrating manner, the three-dimensional continuous diamond network is formed by connecting diamond particles with silicon carbide protective layers formed on the surfaces through diamond-silicon carbide phase boundaries; wherein the metal in the metal network is copper, aluminum, magnesium, copper alloy, aluminum alloy or magnesium alloy. The preparation method provided by the invention also solves the problem of preparation of the porous blank of the diamond material and the interface protection layer. The prepared composite material not only has adjustable diamond volume fraction, high thermal conductivity, low expansion and high strength, but also meets the requirements of low cost and short-process rapid preparation, and shows wide application prospects in the fields of heat dissipation materials, wear-resistant materials, functional structure integrated materials, bulletproof materials and the like.

The transmission shaft with the exhaust structure comprises a flange yoke, a shaft tube, a sliding sleeve and a spline shaft, a closed cavity is formed among the flange yoke, the shaft tube, the sliding sleeve and the spline shaft, an exhaust hole used for communicating the closed cavity with the outside is formed in the flange yoke, and an exhaust valve used for opening and closing the exhaust hole is arranged in the exhaust hole. When the spline shaft slides in the sliding sleeve, air in the closed cavity generates negative pressure or positive pressure, the closed cavity opens or closes the exhaust hole through the exhaust valve to exchange with outside air, it is ensured that the air pressure in the closed cavity is stable, resistance caused by the air pressure in the closed cavity is avoided when the spline shaft is compressed and stretched to slide, and sliding is smoother; the exhaust valve is arranged in the exhaust hole, so that the exhaust hole cannot be blocked by external dust, impurities and the like; by using a set of structure which is good in sealing effect, closed inside and adjustable in volume, the purposes of completely sealing the closed cavity and keeping the air pressure balance of the cavity are achieved.

The utility model discloses an anti-freezing water meter which comprises a water meter shell and a cover body, the cover body is arranged on the water meter shell, and the anti-freezing water meter is characterized in that a partition seat is arranged in the water meter shell in a vertically movable mode, a liquid cavity is formed between the partition seat and the water meter shell, and an installation cavity used for installing a metering device is formed between the partition seat and the cover body. A sealing structure is arranged between the blocking base and the water meter shell, an upper limiting mechanism and a lower limiting mechanism are arranged on the water meter shell, the blocking base is arranged between the upper limiting mechanism and the lower limiting mechanism, and an elastic supporting mechanism is arranged between the upper limiting mechanism and the blocking base. The water meter shell has the advantages of being simple in structure and capable of effectively preventing the water meter shell from being broken and guaranteeing that the water meter performance can reach the international standard after the air temperature recovers.

The present invention belongs to the field of environmental science and technology, and discloses a microplastic biofilm module culture device and its application. In view of the various problems existing in the existing biofilm culture devices with microplastics as the matrix, a microplastic biofilm module culture device is provided, which is composed of a number of culture boxes, each of which is composed of a biofilm culture structure, a semi-automatic collection and separation structure, an aeration structure and a temperature control structure. The natural conditions required for biofilm culture are constructed and can be artificially controlled. At the same time, static and dynamic culture, aerobic, anaerobic, facultative anoxic co-culture, and temperature-controlled culture of microplastic biofilms can be realized, and relevant laboratory biofilm culture experiments under accurate simulated environmental conditions can be carried out; it can be applied to the culture of various microplastic biofilms floating, suspended or sunk in water bodies, so as to achieve the layered collection of microplastics in multiple water layers; the volume and number of biofilm culture chambers can be reasonably selected according to different needs to realize the mass production of the required biofilms.

The present invention discloses a low-noise control box of a functional pillow and a functional pillow, wherein the functional pillow comprises an adjustable pillow body, wherein an air bag is arranged in the adjustable pillow body, wherein the low-noise control box of the functional pillow comprises: a box body, wherein a working chamber is formed; an air supply device and an air supply and exhaust adjustment device, both of which are arranged in the working chamber, wherein the air supply device is connected to the air supply and exhaust adjustment device through a first air pipe, wherein the air supply and exhaust adjustment device is connected to the air bag through a second air pipe, wherein the air supply and exhaust adjustment device is provided with an exhaust port to exhaust the gas in the air bag; and a muffler assembly, comprising a first muffler arranged in the first air pipe. The technical solution of the present invention can prevent the noise generated by the air supply device in the control box from being transmitted to the pillow body of the functional pillow and causing noise trouble to the user.

The invention discloses a double-mold seam glass bottle raw material cutting device, which includes a machine body, which is provided with a material receiving furnace, a rotating part, a punching mechanism and a shearing mechanism, the rotating part is used to drive the punching mechanism and the shearing mechanism to work, the punching mechanism is located above the material receiving furnace, a discharge pipe is fixedly connected below the material receiving furnace, the shearing mechanism is located below the discharge pipe, and a cooling mechanism is also provided below the material receiving furnace, the cooling mechanism is located below the discharge pipe and is used to cool the shearing mechanism. The application has the effect of making the structure of the processing equipment simple and easy to use.

The present invention discloses a multifunctional anti-counterfeiting bottle, wherein a base is connected to the opening of a container body, an anti-counterfeiting sleeve is arranged in the opening of the container body, an anti-counterfeiting structure is arranged in the opening of the container body and / or between the opening of the container body and the base to prevent the anti-counterfeiting sleeve from being taken out of the opening of the container body, the inner hole of the anti-counterfeiting sleeve is wide at the top and narrow at the bottom and is provided with a first liquid outlet, and a movable first valve bead for sealing the first liquid outlet is also provided in the anti-counterfeiting sleeve. Therefore, after the solution in the container body is used up, the anti-counterfeiting structure can prevent the anti-counterfeiting sleeve from being taken out and then filled with other solutions to pass off as genuine ones, thereby achieving an anti-counterfeiting effect.

The invention provides a day and night confocal fisheye optical lens group for a vehicle, which comprises six lenses, the invention relates to an imaging lens, which sequentially comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with positive focal power, an aperture, a fourth lens with positive focal power, a fifth lens with negative focal power and a sixth lens with positive focal power from an object side to an image side, and the part, close to an optical axis, of the object side surface of the sixth lens is a convex surface. The part, close to the optical axis, of the image side face of the sixth lens is a convex face. The optical lens group satisfies the following conditional expressions:-21lt; r3 / f2lt; -1; -184 lt;-184 lt; r < 10 > / R < T > 5 < lt >; -15,-15; 0.8 lt; r7 / f3lt; 1.2; the lens can adjust the light receiving capability, increase the field angle of the lens, reduce the imaging aberration, shorten the back focal length and improve the imaging quality.

The utility model discloses a communication technology experiment development tower for electronic engineering, which belongs to the technical field of electronic engineering communication and comprises a base plate and a communication equipment main body. The universal wheels are arranged at the bottom end of the base plate, a mounting column is rotationally connected to the upper end of the base plate, an air cylinder is rotationally connected to one side of the upper end of the base plate, and the output end of the air cylinder is rotationally connected to one side of the mounting column; the rectangular groove is formed in one end of the mounting column, a matched mounting rod is slidably connected in the rectangular groove, and an antenna is arranged at the upper end of the mounting rod; according to the communication technology experiment development tower, the communication technology experiment development tower can be conveniently driven to contract and rotate through the air cylinder arranged on one side of the mounting column and the internal threaded rod, so that the size of the communication technology experiment development tower can be adjusted, the communication technology experiment development tower can be conveniently transported or stored, and the use convenience of the electronic engineering communication technology experiment development tower is better.

The present invention belongs to the technical field of cloth winding, and specifically, it relates to a winding device for textile cloth processing with a guide mechanism, comprising: two symmetrical inclined guide rails are installed on a support plate, the sliders of the two guide rails are both rotated with a rotating sleeve, and a correction support group located between two guide rollers is provided between the two rotating sleeves; a support frame is slid on the two brackets, and two relative limit plates located on both sides of the guide roller are provided on the support frame, and the lower sides of the two support frames are connected with a contact plate, and the sliders of the two guide rails are both connected with a connecting plate, and two contact wheels located on both sides of the contact plate are rotated on the connecting plate. When the textile cloth deflects on the guide roller, the photoelectric sensor detects the offset, and the textile cloth is corrected by the inclination of the correction support group and the push of the baffle plate, and the baffle plate also plays a limiting role in the front and rear directions, so that the effectiveness of the correction is still guaranteed even if the textile cloth is heavy.

This invention provides antistatic fibers, their preparation methods, and methods for adjusting their fineness and / or volume resistivity, belonging to the technical field of functional fibers and their preparation methods. The first type of antistatic fiber includes a fiber body made of a conductive composition. The second type of antistatic fiber includes a core layer and a sheath layer, with the sheath layer covering the outside of the core layer. The core layer is made of a conductive composition, and the sheath layer is made of a fiber-forming polymer. The preparation method of the first type of antistatic fiber can produce the first type of antistatic fiber; the preparation method of the second type of antistatic fiber can produce the second type of antistatic fiber. The method for adjusting the fineness and / or volume resistivity of the first type of antistatic fiber includes adjusting the types and mass ratios of the components in the sheath layer and the core layer during the preparation process of the first type of antistatic fiber, so that the obtained antistatic fiber has a set fineness and / or volume resistivity. This method can produce antistatic fibers with excellent antistatic properties.