10results about How to "Controllable volume" patented technology

A reciprocating type aluminum profile line brushing module is characterized in that a line brushing module body is installed on a rack according to the surface of a profile needing line brushing, and the position of the line brushing module body is set according to the profile path position of a profile conveying mechanism; the brush wheel motor is installed on the horizontal base plate, the two side edges of the horizontal base plate are guided and limited through the horizontal guide wheels, the horizontal base plate is connected with one end of the adjustable push rod through the universal ball head, the other end of the adjustable push rod is fixedly connected with the end face of the eccentric wheel mechanism, and the eccentric wheel mechanism is driven by the reciprocating motor. The module is installed on the machine frame of the grain brushing machine and arranged according to the face, needing grain brushing, of an aluminum profile, installation and detachment are flexible, the structure is compact, and the module has the reciprocating motion function and is convenient to adjust.

The utility model discloses a double-air-chamber air spring piston assembly which comprises a piston cylinder body, an electromagnetic valve seat used for installing a valve body is integrally formed at the bottom end of one side of the piston cylinder body, a sealing piston cavity is vertically formed in the piston cylinder body, and the piston cylinder body and the electromagnetic valve seat are arranged in an integrated structure. The valve seat mounting cavity integrally connected in the electromagnetic valve seat enables the electromagnetic valve to be mounted in the valve seat mounting cavity, one end of the electromagnetic valve, the electromagnetic valve seat and the piston cylinder body are located on the same horizontal plane, the electromagnetic valve is tightly ejected in the valve seat mounting cavity through the sealing base to be fixed, and therefore the size of the double-air-chamber air spring piston assembly is reduced, and the service life of the double-air-chamber air spring piston assembly is prolonged. And meanwhile, the situation that an air spring piston collides with a fixed base of the double-air-chamber air spring piston assembly in the working process due to the fact that the electromagnetic valve is installed to protrude out is avoided, then the safety of the electromagnetic valve in the using process can be guaranteed, and the overall size of the double-air-chamber air spring piston assembly can be controlled.

This invention discloses an integrated centrifugation and vortex device, belonging to the field of experimental equipment technology, which solves the technical problems of large space occupation and cumbersome operation of existing centrifugation and vortex devices. It includes an outer shell, with a drive motor connected to the bottom of the shell. The output shaft of the drive motor is connected to a phase arm via a coupling. The upper part of the phase arm is fixedly connected to a centrifuge disc, and multiple centrifuge cups are arranged on the centrifuge disc. A bearing mounting seat is provided inside the outer shell, and a bearing is installed on the bearing mounting seat. An eccentric ring is connected to the inner edge of the bearing, and the eccentric ring is connected to the phase arm via the bearing. This integrated centrifugation and vortex device can be better used for sample pretreatment, has a wide range of applications, controllable size, and is easy to use.

The utility model discloses a micro-injection device, which belongs to the field of experimental devices and can avoid the problem that a piston shaft deforms due to the fact that the piston shaft is too thin, so that a user can more smoothly carry out micro-volume fluid injection. The device comprises a needle head, a tube body, a piston head, a piston shaft with threads and a nut, the needle head is mounted at the front end of the tube body; the piston is installed at one end of the piston shaft with the threads and is in close fit with the inner side of the pipe body, so that when the piston head slides relative to the interior of the pipe body, no gas or liquid overflows from the contact position of the piston head and the pipe body. The piston shaft with the threads is matched with the nut; when the piston shaft with the threads rotates, the nut and the pipe body are kept relatively static; the rear end of a handle of the threaded piston shaft is provided with a marked line passing through the circle center, and the volume of injection fluid is calculated according to the number of half-circle rotation of the shaft. According to the device, the accuracy of the volume of the injected fluid can be improved, and a user can more accurately and easily inject a trace volume of fluid.

The utility model relates to a heat preservation module for a kiln and the kiln. The heat preservation module comprises a hollow module main body, the module body comprises a supporting frame in a regular shape and a heat preservation layer arranged along the inner side of the supporting frame, and the heat preservation layer is connected with the supporting frame through an anchorage device. The supporting frame is provided with a first linear groove; the module body is detachably connected with the kiln based on the first linear groove, and the module body is movably arranged in the kiln based on the first linear groove. The first linear groove is formed in the module body to achieve installation and movable arrangement of the module body, and the installation structure of the module body can be effectively simplified. Besides, the first linear groove can achieve the overall bearing effect in the mode that the side face or the bottom face of the first linear groove makes contact with the supporting structure, the installation flexibility is effectively improved, the structure and arrangement requirements of the supporting structure can be lowered, and the service life of the supporting structure is prolonged. And further, the influence of impurities, dust and the like in the kiln on disassembly, assembly and movable arrangement of the heat preservation module can be effectively overcome.

This invention relates to the field of animal model preparation technology, and discloses a method for preparing a mouse model of brain hemorrhage without thermal effects. The method includes preparing a microbubble contrast agent and healthy adult mice, pre-treating the mouse brain and marking target sites, anesthetizing the mice and fixing them on a stereotaxic apparatus, aligning a hydrogel cone mounted on an ultrasound transducer with the target sites in the mouse brain, intravenously injecting the microbubble contrast agent, and 20-40 minutes after the injection, activating the ultrasound transducer to perform ultrasound intervention on the target sites in the mouse brain. The cavitation effect of ultrasound induces focal brain hemorrhage, establishing a mouse model of brain hemorrhage. This invention, by applying the hydrogel cone to the target sites in the mouse, allows sufficient time for heat dissipation from the brain tissue during the ultrasound pulse intervals, making the temperature rise of the target tissue negligible throughout the irradiation process. This effectively reduces thermal damage, leading to more accurate interpretation of experimental data and more reliable research conclusions.

The utility model provides a kind of brewing assembly for coffee machine, including brewing support, brewing kettle, brewing kettle top rod and linkage mechanism, brewing head is fixed in brewing support inside upper end, brewing kettle can swing installation in brewing head downside;Brewing kettle is connected with brewing head by drive mechanism, drive mechanism includes swing lever rotatably installed in the side portion of brewing head and driving link that is hinged between swing lever and brewing kettle, guiding groove for guiding brewing kettle is provided on brewing support;Brewing kettle top rod is liftable installed in the brewing chamber of brewing kettle, linkage mechanism is installed in the bottom of brewing kettle top rod;In the process that drive mechanism drives brewing kettle to swing, linkage mechanism links brewing kettle top rod to make it lift relative to brewing kettle, to realize the function of coffee powder compaction and coffee cake residue pushing out;The utility model provides a kind of brewing assembly for coffee machine, overcome the defect that existing brewing structure drive is complex, cost is higher, maintenance and control difficulty is big.

The utility model discloses a kind of coaxial double-paddle motors used on sea surface flying buoy, including the motor group constructed by first motor, second motor, the first motor, second motor corresponding output shaft is coaxially reversely arranged, to drive two groups of propellers reversely rotating respectively, construct water or underwater propulsion coaxial double-paddle type drive structure, the rotor assembly and magnetic steel surface of the first motor, second motor are all provided with the corrosion-proof layer of electroplated nickel, the stator core surface of the first motor, second motor is all provided with the protective layer of vacuum plating film;The oil injection port is opened on the oil injection inner cavity side wall corresponding to the motor group, and the oil injection port is connected with oil injection device by matched connecting pipeline.The utility model is by being provided with corrosion-proof layer on the rotor assembly and magnetic steel surface of each motor, and being provided with protective layer on stator core surface, so that it is more resistant to seawater corrosion relative to existing ordinary motor, and service life is more guaranteed.

The present application relates to a mid-mounted variable speed motor, which includes a motor body, a housing mechanism, a central shaft mechanism, a power transmission mechanism and a speed change mechanism; the speed change mechanism includes a speed change input assembly, a speed change selection assembly and a speed change output assembly; the speed change input assembly includes a plurality of intermediate gears of different diameters, the plurality of intermediate gears are coaxially arranged, and the speed change output assembly is connected to the power transmission mechanism; the speed change output assembly is connected to the central shaft mechanism in a transmission manner, the speed change output assembly includes a speed change gear having the same number as the intermediate gears, the speed change gears are coaxially arranged, and are used for meshing and transmission connection with the corresponding intermediate gears; the speed change selection assembly includes a shift coupling member, the shift coupling member reciprocates in the direction of the speed change gear axis to switch the transmission relationship between the speed change gear and the intermediate gear. The present application integrates the speed change structure inside the motor.

The utility model relates to antenna equipment technical field especially is involved in a kind of multi-frequency multi-port base station antenna with combined road, it includes main reflection bottom plate, four groups high frequency array and low frequency array in four groups high frequency array are misaligned and are arranged.Low frequency array is provided with multiple low frequency radiating units.Multiple high frequency phase shift feed modules that are electrically connected with high frequency radiating unit, multiple low frequency phase shift feed modules that are electrically connected with low frequency radiating unit and multi-frequency combiner are provided on the back of main reflection bottom plate.Multiple columns of high frequency array and a group of low frequency array are simultaneously provided on main reflection bottom plate, and low frequency radiating array is ingeniously inserted between high frequency radiating array, compact structure and lightweight design, and multi-band function is realized by integrated design, while keeping antenna volume and weight controllable.