10results about How to "Adjust volume" patented technology

The present application relates to the technical field of transformers, and specifically to an explosion-proof transformer for electric dehydration, which adopts an explosion-proof shell, and the explosion-proof shell includes a main box, a high-voltage junction box, a high-voltage output flange, a low-voltage junction box, and an oil storage tank. An oil pipe is also provided above the oil storage tank, and a breathing valve assembly is also provided at the end of the oil pipe; the breathing valve assembly includes a telescopic sleeve, a first-level telescopic assembly, and a water-absorbing medium: the telescopic sleeve includes a fixed outer cylinder and a telescopic inner cylinder, and the telescopic inner cylinder can be slidably arranged below the fixed outer cylinder; the first-level telescopic assembly is used to limit the sliding freedom of the telescopic inner cylinder in the fixed outer cylinder; the water-absorbing medium is arranged in the telescopic sleeve. The explosion-proof transformer described in this case has a breathing valve assembly connected to the oil storage tank through an oil pipe, which effectively filters water vapor in the outside atmosphere; the breathing valve assembly can also adjust the volume of the telescopic sleeve through the first-level telescopic assembly, and then load water-absorbing media of different capacities to adapt to different working conditions.

The application provides a limited rock mass passive earth pressure test device and a use method, which comprises a bottom plate and a box body fixed on the bottom plate, a baffle plate is slidably arranged in the box body, a retaining wall plate is arranged on one side of the box body, the retaining wall plate is connected with a horizontal driving mechanism, four linearly arranged pressure sensors are fixedly arranged on the retaining wall plate, a space with an open upper end is formed between the retaining wall plate and the baffle plate, a pressing plate one is slidably arranged along the depth direction of the box body, a pressing plate two is slidably arranged in the pressing plate one, and the pressing plate two is slidably matched with a T-shaped groove arranged on the baffle plate. The baffle plate which can slide in the box body is arranged, so that the volume of the soil during the test can be flexibly adjusted, and the structure is simple and the operation is convenient.

The invention discloses an AFB1 colorimetric-electrochemical dual-mode detection kit based on MIL-88 (at) Pd / Pt nano-enzyme and application of the AFB1 colorimetric-electrochemical dual-mode detection kit. According to the invention, AFB1-Apt is connected to MBs through an amidation reaction. And the MIL-88 (at) Pd / Pt is connected to the cDNA through an amide reaction. And then, through DNA hybridization, the cDNA and AFB1-Apt are complementarily combined. In the presence of AFB1, it specifically binds to AFB1-Apt, resulting in double strand hybridization dissociation. After magnetic separation, NaAc-HAc, TMB and H2O2 are added to precipitate, colorless TMB is catalyzed to be oxidized into blue oxTMB through a reaction system, a colorimetric signal is generated, and the absorbance change of the oxTMB is measured. The supernate is added to the treated GCE, and the electrode is immersed in a PBS buffer solution containing H2O2. The electrochemical reduction of H2O2 generates a significant SWV signal. According to the invention, a high-performance dual-mode sensing platform is constructed, cooperative amplification and cross validation of signals are realized, and the method has the advantages of high selectivity, high sensitivity, low cost and the like.

The utility model discloses a size changeable air intake pipe, including the air intake manifold for connecting engine, the air throttle valve for accurate control air intake and the pipeline main part for guiding and optimizing air intake airflow, for guiding and optimizing air intake airflow, air intake manifold and pipeline main part are connected respectively at air throttle valve's both sides, and pipeline main part is by interface section, connecting section and horn mouth section at least three section pipe body detachably connected composition, pipeline main part gradually increases along the direction of away from air throttle valve its pipe diameter. The utility model discloses size changeable air intake pipe, will air intake pipe design as multistage detachable modularization structure, need maintenance or refitting, and user only needs to simply unscrew each section pipe body, and the operation is extremely simple, and each section uses the screw thread cooperation and connects, spares the independent clamp, flange and multiple bolts, reduces the part quantity and material cost.

The utility model discloses an oxidation area volume adjusting device relates to cement processing decomposition furnace technical field, including the furnace body, one side fixed connection of the furnace body has the adjusting assembly, the top of furnace body is provided with the sensor, the top fixed connection of furnace body has the flue, the inside of furnace body is provided with conveying assembly, the adjusting assembly includes the motor. This oxidation area volume adjusting device can make the motor can drive the screw rod to rotate in the guide bushing, can make the baffle can rely on both sides'sliding sleeve along the outer wall of slide rod and slide, and then can reach the position adjustment to baffle, and baffle relies on the movable rod and draws the mounting sleeve along the outer wall of mounting rod and slides, and can compress spring, and can make baffle rely on the high temperature -resistant sealing sleeve of outside and stably slide in the furnace body, can adjust the oxidation area volume in the furnace body, satisfies people's daily use requirement.

The utility model relates to a dynamic amplitude limiting circuit of a power amplifier and the power amplifier, and the circuit comprises a protection circuit which accesses a sound electric signal and transmits the sound electric signal to a signal conditioning circuit; the signal adjusting circuit receives the sound electric signal transmitted by the protection circuit and adjusts the size; the filter circuit filters the sound electric signal and then transmits the sound electric signal to the amplitude limiting circuit and the power amplifier circuit; the amplitude limiting circuit is used for dividing voltage to limit the voltage of the power amplifier; and the power amplifier circuit converts the sound electric signal into a sound signal. The input point voltage of the amplitude limiting circuit is compared with the VDD output voltage and the VSS output voltage, different triodes are driven to drive a thirteenth triode to be conducted, and an optical coupler is driven to change the resistance value of an output resistor of the optical coupler to carry out voltage division so as to reduce an input voltage signal of the power amplifier circuit. Amplitude limiting is carried out through dynamic detection of VDD voltage and VSS voltage, power supply fluctuation is prevented from influencing transmission of electric signals, adverse effects caused by power supply fluctuation are eliminated, and the power amplifier works more stably.

The utility model relates to the technical field of filling devices, and discloses a filling device for producing and processing spina date seed paste, which comprises a transmission machine, supporting legs are fixedly connected to the bottom of the transmission machine, a clamping cylinder is fixedly connected to the inside of the transmission machine, a supporting frame is fixedly connected to the back of the transmission machine, and the supporting frame is fixedly connected to the bottom of the transmission machine. A liquid storage tank is fixedly connected to the back of the supporting frame, a filling air cylinder is fixedly connected to the top of the supporting frame, an adjusting filling mechanism is arranged at the bottom of the filling air cylinder, and an auxiliary limiting mechanism is arranged at the top of the conveying machine. The filling tanks with different volumes can be conveniently used, the position of a baffle can be conveniently adjusted through rotation of a worm, rotation of a gear and cooperation with a rotary disc, so that the flow speed of raw materials in the movable tank is adjusted, and the angle of a flow guide plate is conveniently adjusted through work of a motor, cooperation with a limiting rod, movement of a movable block and cooperation with a connecting rod.

The utility model relates to the technical field of laser welding, in particular to laser welding equipment suitable for workpieces of different sizes, which comprises a workbench, an inner protective cover and an outer protective cover, one side wall of the inner protective cover and one side wall of the outer protective cover are open, and the other side wall of the inner protective cover is open. An upper placing opening and a lower placing opening are formed in the front side wall and the rear side wall of the workbench correspondingly, the bottom wall of the inner protective cover is slidably arranged in the upper placing opening, the bottom wall of the outer protective cover is slidably arranged in the lower placing opening, the opening end of the inner protective cover extends into the outer protective cover, and the top wall and the side wall of the inner protective cover are correspondingly attached to the inner side wall of the outer protective cover in a sliding mode. Steps are arranged at the two ends of the inner side of the bottom wall of the outer protective cover, the top ends of the steps and the ends, close to the workbench, of the steps abut against the bottom wall of the inner protective cover and the side wall of the workbench in a sliding mode, the size of the closed structure can be adjusted by sliding the inner protective cover or the outer protective cover, and workpieces of different sizes can be conveniently placed on the workbench for laser welding.

The utility model relates to the technical field of sewage treatment discloses a highway service area sewage treatment system, include: adjusting pool, water treatment pond, adjusting baffle, drive structure, control platform, between adjusting pool with water treatment pond set up adjusting baffle, drive structure with Adjusting baffle is connected, drive structure drives adjusting baffle movement to adjust the volume of adjusting pool, between drive structure with Control platform electric connection. Through setting adjusting baffle and drive structure, can according to actual water inlet characteristic through control platform control drive structure adjusts the position of adjusting baffle to realize the adjustment of the volume of adjusting pool, and the system performs well when responding to violent fluctuation.

The invention relates to liquid drop transfer equipment, in particular to a light-operated three-dimensional transfer arm for transferring liquid drops, which comprises a light response double-layer heterogeneous film, a three-axis translation device and a light source, the photoresponse double-layer heterogeneous film is arranged at the tail end of the three-axis translation device and is controlled by the three-axis translation device to move; the light source is arranged above the light response double-layer heterogeneous film and moves along with the light response double-layer heterogeneous film; the photoresponse double-layer heterogeneous film is formed by overlapping a photoresponse film and a polymer film; the photoresponse film deforms when irradiated by a light source, and a microarray structure used for adhering liquid drops is arranged on the surface of the polymer film. Compared with the prior art, the defect that in the prior art, high-viscosity biological liquid cannot be adhered and transported due to wettability difference achieved only by means of a micro / nano structure is overcome, and effective grabbing and accurate transferring of bio-based liquid drops are achieved.