733results about How to "Overall small size" patented technology

The invention provides a negative pressure suction dust removal device based on a Venturi effect, and belongs to the field of coal mine dust removal. The problems that an existing dust removal device suitable for the field of coal mine dust removal is too large in size and mass, difficult to move, large in noise, high in daily maintenance cost and the like are solved. The device comprises a box body, a water power fan, a Venturi tube, a desilting assembly, a counter-rotating fan, a filtering cabin and a water tank, wherein an air inlet pipeline, a settling cavity, an air duct and an air outlet pipeline are sequentially arranged in the box body; the hydrodynamic fan is arranged at the inlet end of the air inlet pipeline; the input end of the Venturi tube is communicated with the air inlet pipeline, and the output end is communicated with the settling cavity; the desilting assembly is arranged below the air duct; the counter-rotating fan is arranged in the air duct and is positioned between the settling cavity and the filtering cabin, and the filtering cabin is communicated with the air outlet pipeline; and the water tank is communicated with the filtering cabin and is also communicated with a water inlet of the hydrodynamic fan. The dust removal device is simple in structure, small in size and mass, convenient to move, low in noise and low in daily maintenance cost.

The invention belongs to the field of flow heat transfer testing devices and the technical field of semiconductor chip and integrated circuit packaging heat dissipation, particularly relates to a flow heat transfer testing device and method for a 3DIC, and aims to solve the problem of heat management experiment testing of a 3DIC structure under the condition of high heat flux. The device comprises alternately stacked open type heating sheet slots, micro-channel modules, MCH ceramic heating sheets, interlayer communication columns, a flow distributor and a plurality of temperature measuring elements. Through a reasonably designed fluid distribution system and a precise heat conduction structure, an equivalent substitution experiment scheme of a real 3DIC is realized, the problem of small-space temperature measurement point and heat source arrangement is solved, and the problems of non-uniform flow distribution of gas-liquid two-phase flow in a variable cross-section sub-runner and the like are solved. The device has a real-time temperature monitoring capability, is suitable for thermal management research and multiphase flow pattern observation of 3DIC, and provides a scientific basis for optimization design and performance improvement.

The invention relates to the technical field of batteries, and provides a high-voltage box, a battery and electric equipment, the high-voltage box comprises a shell and a heating element, and the shell is provided with an accommodating cavity; the heating element is arranged in the accommodating cavity; the shell is internally provided with a heat exchange channel, and the heat exchange channel is configured to allow a heat exchange medium to circulate so as to exchange heat with the heating element. According to the high-voltage box provided by the invention, compared with an independent heat exchange mechanism arranged outside the shell of the high-voltage box, the heat exchange channel is arranged in the shell, so that a heat transfer path between the heating element and the heat exchange medium can be shortened, and the heat dissipation efficiency of the high-voltage box is effectively improved. Meanwhile, more space can be released from the periphery of the shell of the high-voltage box, parts required for heat dissipation are reduced, and the overall size of the high-voltage box can be reduced, so that the energy density of the battery is improved.

The invention belongs to the field of satellite-borne scanning mechanism design, and relates to an integrally-designed satellite-borne complex variable-speed scanning and torque compensation mechanism, which is used for realizing compensation of disturbance torque generated by a complex variable-speed scanning mechanism and comprises a variable-speed scanning mechanism and a torque compensation mechanism which share one set of shell and are coaxially designed, the variable-speed scanning mechanism comprises a first hollow cylinder and a third hollow cylinder; a first position sensor rotor, a first position sensor stator and a first position sensor are arranged on the second inner wall of the first hollow cylinder; the torque compensation mechanism comprises a second hollow cylinder, a flywheel and a fourth hollow cylinder, the flywheel is of a concentric double-cylinder structure, the outer cylinder diameter of the flywheel is larger than the outer diameter of the second hollow cylinder, and the inner cylinder diameter of the flywheel is smaller than the inner diameter of the second hollow cylinder. And a second position sensor rotor, a second position sensor stator and a second position sensor are arranged on the first inner wall of the second hollow cylinder.

The invention relates to an electromagnetic adsorption butting connector for a microgravity environment, which comprises a plug and a socket, the front ends of the plug and the socket are inserted oppositely, a plug shell is provided with a female end transmission module, a socket shell is internally provided with a male end transmission module, the plug shell is provided with an armature component, and the socket shell is provided with an electromagnetic component. The armature part and the electromagnetic part can provide power for the plug and the socket to make the plug and the socket close to each other, and can be demagnetized after the electromagnetic part loses power. A telescopic locking component which can be driven by a power mechanism to move in the axial direction of the plug shell is further arranged in the plug shell, and a locking structure used for being locked with the telescopic locking component in a matched mode is arranged on the socket shell. And the locking structure is locked with the telescopic locking component under the adsorption action of the armature component and the electromagnetic component, and then moves towards the plug end along with the telescopic locking component to provide butt joint power for the transmission module, so that the plug and the socket are completely inserted, and the requirement of large-insertion-force insertion of the connector is met.

The utility model relates to the technical field of massage equipment, in particular to a shoulder and neck massager which comprises a transmission assembly, a first massage assembly, a second massage assembly and a driving assembly. The transmission assembly comprises a transmission shaft and a transmission wheel, the transmission shaft is sleeved with the transmission wheel, the transmission wheel comprises a cam part, a swing part and a sleeving part, the center of the cam part is located on one side of the transmission shaft, and the swing part is provided with a swing slope obliquely arranged relative to the axial direction of the transmission shaft; a first swing arm in the first massage assembly is rotatably arranged on the cam part in a sleeving manner; a second swing arm in the second massage assembly is rotatably arranged on the sleeving part in a sleeving manner, and the second swing arm abuts against the swing inclined plane; under driving of the driving assembly, the cam part can drive the first swing arm to swing back and forth around the transmission shaft, and the swing slope can drive the second swing arm to swing back and forth in the axial direction of the transmission shaft. The transmission wheel can drive the first swing arm and the second swing arm to swing at the same time, the structure of the transmission assembly is simplified, and therefore the size and the weight of the shoulder and neck massager are small.

The invention discloses a high-air-gap flux density hybrid pole permanent magnet motor rotor, which comprises a rotor iron core, rectangular permanent magnets and Halbach array permanent magnets, and is characterized in that V-shaped grooves and linear grooves are uniformly distributed in the outer surface of the rotor iron core; the rectangular permanent magnets are arranged in the V-shaped grooves and form a V-shaped built-in permanent magnet structure, and the V-shaped built-in permanent magnet structure is used for suppressing torque pulsation during operation of the motor; according to the invention, the function of inhibiting torque ripple during motor operation through the V-shaped built-in permanent magnet structure is realized, and the function of improving the average torque output of the motor through the linear surface plug-in permanent magnet structure is realized, so that the operation stability and control precision of the motor are improved; and the motor can realize higher average torque and remarkably reduce torque pulsation while keeping a compact size, so that the energy efficiency ratio and the response speed of the motor are improved, the application potential of the motor in high-performance and high-efficiency applications is enhanced, and the motor is suitable for being widely popularized and used.

The invention provides a diffusion screen which can be applied to a projection device and a vehicle. The diffusion screen provided by the invention can realize direction matching of projection light and image light, can reduce the size of the display device, and improves the imaging quality of the display device. The first surface of the diffusion screen provided by the invention comprises the microstructure array, and the curvatures of the plurality of microstructures of the microstructure array in the first direction are different, so that the diffusion screen can change the direction of the emergent image light in the first direction.

The embodiment of the invention provides a connection table. The connection table comprises a main body support, a detection table, a detection device and a conveying table. The main body support is embedded in a wall body of a warehouse, the main body support is provided with an outer side located in an outer area of the warehouse and an inner side located in an inner area of the warehouse, and the main body support is provided with an access port which is communicated with the inner area and the outer area of the warehouse and used for goods to pass through. The detection table is arranged on the outer side of the main body support and used for placing and detecting goods stored in a warehouse, and the detection table is arranged on the main body support in an overturning mode and can be overturned to be in a vertical state so as to be attached to the wall face. The detection device is used for carrying out warehousing information detection on the goods placed on the detection table. The conveying table is arranged on the inner side of the main body support and used for conveying goods inwards. The connection table is compact in structure and small in occupied space, and the work of additionally pasting codes on goods can be omitted.

The utility model relates to a battery pack heating circuit and an energy storage cabinet, the circuit comprises at least one energy storage module, and the energy storage module comprises an AC-DC conversion circuit, a driving element and a controller; the DC side of the AC-DC conversion circuit is suitable for being connected with the battery pack, and the AC side is suitable for being connected with an external power supply; the controller is connected with the driving element, the first confluence end of the controller is suitable for connecting the anode of the battery pack, and the second confluence end is suitable for connecting the cathode of the battery pack; when the temperature of the battery pack is lower than the preset temperature, the inductor in the controller and the driving element is suitable for forming a current loop with the battery pack lower than the preset temperature so as to perform self-heating of the battery pack; or the external power supply is suitable for charging the battery pack with the temperature lower than the preset temperature or discharging the battery pack with the temperature lower than the preset temperature to the external power supply so as to perform self-heating of the battery pack. According to the scheme, the internal self-heating function of the battery pack can be realized without arranging an additional external device, the heating is uniform, the heating speed is high, and additional cost and volume are not increased.

The differential with an electronic differential lock mechanism of the present invention comprises a differential housing, a differential cover, a half-shaft gear I, a half-shaft gear II, a planetary gear shaft, two planetary gears and an electronic lock mechanism, wherein the electronic lock mechanism comprises a locking dog tooth ring, an ejector pin, an electromagnet, a drive plate and a wave spring, wherein the locking dog tooth ring is sleeved outside the shaft shoulder of the half-shaft gear I, the wave spring is arranged in the locking dog tooth ring and sleeved on the shaft shoulder surface outside the tooth groove of the half-shaft gear I, one end of the ejector pin abuts against the end face of the locking dog tooth ring, and the other end of the ejector pin extends outwardly through the outside of the differential housing and extends to the inclined groove of the drive plate, the drive plate is sleeved outside the differential housing on the side where the half-shaft gear I is located, and the electromagnet is against the outer end face of the drive plate and is positioned on the main reducer housing. The electromagnet in the electromagnet absorbs and releases the drive plate, and relative rotation is generated between the drive plate and the differential housing to realize the locking function. The present invention has a simple structure, reliable performance, small size and flexible layout.

The invention relates to the technical field of green belt trimming application, in particular to an automatic highway green belt trimming device which comprises a cross beam, a limiting assembly, a trimming assembly and a smashing assembly.The automatic highway green belt trimming device is exquisite in design, compact in size and capable of working under the condition of not occupying too much space; the cross beam serves as a main structural part, the supporting legs are vertically fixed to the bottom end of the cross beam, the advancing wheels are installed at the bottom ends of the supporting legs, and through the design, the device can move front and back on an expressway without occupying too much lane space, pruning work can be completed without arranging a roadblock, integration of a hub motor enables the advancing wheels to have the self-walking function, and the practicability is high. Therefore, the trimming device can move autonomously without additional traction or pushing force, the self-walking function greatly improves the efficiency of trimming operation, reduces the labor intensity of workers, and enables the trimming operation to be more flexible and quicker.

The invention discloses a distance measuring device, and the device comprises a first telescoping assembly which forms a first optical path for human eye telescoping; a second telescoping assembly which forms a second optical path used for human eye telescoping; the light source assembly is configured to generate dual-wavelength combined laser, and the dual-wavelength combined laser is emitted through a first light path; the first distance measuring assembly is configured to receive first dual-wavelength echo laser which is reflected by the dual-wavelength combined laser through a target and passes through a first light path, and measure a first distance of the target through a phase method; and the second distance measuring assembly is configured to receive second dual-wavelength echo laser which is reflected by the dual-wavelength combined laser through the target and passes through a second light path, and measure a second distance of the target through a time flight method. In this way, the distance measurement precision can be improved.

The invention discloses a test method and a test platform for a twin trawling test of an energy storage battery prefabricated cabin, which are used in the field of charge and discharge performance evaluation of the energy storage battery prefabricated cabin, and the test method comprises the following steps: electrifying test equipment of the test platform; a battery pack in the energy storage battery prefabricated cabin starts to send real-time state information and feeds back the real-time state information to the energy management system and the converter control system; selecting a test mode according to a test requirement, and issuing a power control instruction to the converter control system according to a set test flow; controlling the energy storage battery prefabricated cabin to perform charging and discharging test according to the power curve information; and when the battery pack reaches a set cut-off state, a zero power instruction is issued to the converter control system, the test is terminated, a test result is exported, and a test report is generated. According to the test scheme, an instruction is automatically sent according to a set program for charging and discharging test and mode conversion, and the automatic test degree is high.

The invention discloses an unmanned aerial vehicle hybrid deployment flight control system. The system comprises an airborne computing unit arranged on the unmanned aerial vehicle, a computing power CPU of the airborne computing unit comprises a plurality of cores, and flight control software is installed on the airborne computing unit in a hybrid deployment mode; a specific core of the computing power CPU runs the flight control software and the RTOS real-time domain; other cores of the computing power CPU run a Linux operating system and an intelligent computing domain, and the intelligent computing domain is used for executing an intelligent computing task; and different cores of the computing power CPU are connected through a communication bus. According to the invention, the flight control software and the intelligent computing task are mixed and deployed on different cores of the same airborne computing unit, so that when the airborne computing unit needs to be configured, an independent flight control board card is not used any more; flight control software and an intelligent computing task share one computing power CPU, redundancy and volume increase of multiple hardware modules are avoided, and installation complexity and cost are effectively reduced.

The utility model discloses a battery pack PDU device for an electric heavy truck, which comprises a box body with an opening at the upper end and an upper cover, the upper cover covers the opening of the box body, and an electric device mounting seat, an electric device assembly, a copper bar assembly, a BMS adapter bracket and a BMS controller which are distributed from bottom to top are arranged in the box body. A plurality of columns are fixedly arranged on the inner bottom surface of the box body, the electric device mounting seat is detachably arranged at the upper ends of the columns, the electric device assembly is arranged on the upper end surface of the electric device mounting seat, the copper bar assembly is arranged at the upper end of the electric device assembly, the BMS adapter bracket is arranged above the copper bar assembly, and the BMS adapter bracket is arranged above the copper bar assembly. The BMS controller is arranged on the upper end surface of the BMS adapter bracket; the box has the advantages that the electric devices can be orderly arranged in the box body, and the space utilization rate is high.

The invention discloses a U-shaped coil inductor and a production method thereof, and the method comprises the following steps: S1, cutting a copper sheet into a required size through a punching machine, and bending the copper sheet into a U-shaped coil; s2, the U-shaped coil is placed on a lower punching die with the opening facing downwards, and an electrode of the U-shaped coil is placed in a groove of the lower punching die; s3, feeding the alloy powder into a mold, and applying pressure to press the alloy powder and the U-shaped coil into an inductor; s4, putting the inductor into an oven for baking; s5, uniformly covering the inductor with an organic coating through spraying equipment to form a protective layer; and S6, stripping the protective layer of the exposed electrode of the inductor by using laser, and plating a tin layer on the electrode through electroplating. The U-shaped coil has the beneficial effects that the U-shaped coil is formed by bending the copper sheet, the structure is simple, automatic generation and processing are facilitated, and the production efficiency is improved; the U-shaped coil and the magnetic powder block are pressed and integrally formed, the volume is small, the magnetic powder block can be easily integrated into a circuit, the design of the circuit is more compact, and the requirement for high integration of components is met.

The invention provides a dopamine hybrid ligand ZIF-8 / gelatin composite aerogel and a preparation method and application thereof, and belongs to the field of composite aerogel and preparation thereof.The growth rate of ZIF-8 nanocrystals is accurately controlled through dopamine hybrid coordination metal ions, stable ZIF-8-DA hybrid crystals are formed, and the stability of the aerogel is improved. The crystal not only solves the problem that the traditional MOF material is easy to aggregate particles, but also retains abundant chemical functional groups; furthermore, the ZIF-8-DA and a gelatin matrix are compounded by adopting a multi-crosslinking strategy and a freeze-thaw treatment technology to obtain the composite aerogel with a unique three-dimensional porous microstructure, so that the mechanical strength and the structural stability of the composite aerogel are remarkably improved, and the composite aerogel shows better heat-insulating and flame-retardant properties; the composite aerogel material prepared by the scheme has excellent heat insulation and flame retardant properties, and is suitable for high-energy-consumption fields such as building energy conservation, industrial heat management and environmental flame retardance.

The utility model discloses an under-forest interplanting fertilizing device which comprises a moving trolley, a temporary storage box is arranged at the top of the moving trolley, a transfer pipe is arranged on one side of the top of the temporary storage box, a lifting assembly is arranged on the side face of the temporary storage box, and an adjusting assembly is arranged below the lifting assembly. A hose adapter is arranged on the side face of the temporary storage box, the lifting assembly comprises a mounting plate, a supporting rod is arranged at the top of the mounting plate, an ejection sliding rod is arranged in the middle of the supporting rod, a lead screw is arranged in the middle of the ejection sliding rod, and an L-shaped positioning frame is arranged at the top of the lead screw. The movable block drives the connecting square pipe and the spraying head to move along the two-way lead screw, so that fertilization and irrigation of plants with different plant spacing are realized, the use convenience of the device is improved, a worker does not need to manually take the device for fertilization, and the working efficiency is improved.

The invention discloses an intelligent following anti-falling device suitable for power transmission tower maintenance and a using method. The intelligent following anti-falling device comprises a motor driving part, a guide rail sliding block part, a differential mechanism and a sensor part. The invention has the following beneficial effects: an electric power overhaul worker does not need to continuously drag and move the safety rope fixing bayonet, and can automatically adjust whether to open the one-way self-locking function of the guide rail slide block according to the specific working state during overhaul; in addition, the limitation of the position of the self-locking device and the length of the safety rope on the activity space range of the electric power overhaul worker in high-altitude overhaul is further reduced, and the overhaul activity space is further expanded; in addition, the intelligent following anti-falling device effectively avoids distraction of the electric power maintainer due to frequent dragging of the safety rope fixing bayonet, and unnecessary physical power consumption of the electric power maintainer is reduced.

A double-folding-wing full-sealing linkage folding and unfolding mechanism comprises a double-folding deformation wing, a hinge mechanism, a steel wire rope assembly, a 90-degree reverse screw mechanism, a 180-degree reverse screw mechanism and a rope mechanism. The 90-degree reverse screw mechanism is mounted in the middle of the fixed inner wing 1a and the folding middle wing 1b, and is rotationally supported by a middle wing hinge 2a; the 180-degree reverse screw mechanism is mounted in the middle of the folding middle wing 1b and the folding outer wing 1c, and is rotationally supported by an outer wing hinge 2b; the rope mechanism rotates and outputs, an inner wing steel wire rope 3a is pulled to move in a reciprocating mode, a middle wing steel wire rope 3b and an outer wing steel wire rope 3c are in reciprocating linkage, and then a right-handed moving rod 4c, a left-handed moving rod 5c1 and a right-handed moving rod 5c2 are forced to be engaged in a linear variable-rotation rolling mode, so that a folding middle wing 1b rotates by 90 degrees, and a folding outer wing 1c rotates by 180 degrees; the full-unfolding and full-folding effects of the double-folding deformation wing under the conditions of a single driving source and power transmission sealing are achieved.

The invention discloses an escape device of a single-person aircraft. The escape device comprises an open type rack, a parachute, a parachute shooting rocket, a bearing device, a separation mechanism and an escape handle. Wherein the open type machine frame is formed by combining a plate, a U-shaped beam, an L-shaped beam, a hoop and a connector assembly, a person is located on the inner side of the U-shaped machine beam, supports on the two sides serve as supporting handrails, the upper portion of the L-shaped beam serves as a placing area of other assemblies, and the connector assembly is locked on a machine body framework through the hoop. In order to solve the problem that an existing parachute is heavy in weight, the invention provides a lifesaving scheme for a single person, the protection function on personnel is emphasized, one-key separation of the personnel and the aircraft is realized through a quick switch when the aircraft breaks down, and the escape personnel stably land under the protection of the parachute. Compared with lifesaving protection for a complete machine system, the escape device only for personnel protection has great advantages in weight and size.

The invention discloses an ion pump high-voltage power supply, and belongs to the technical field of power supplies and ion pumps. The ion pump high-voltage power supply comprises a square wave generation circuit, a forward inverter circuit, a voltage doubling circuit, a power supply management circuit and a high-voltage restart auxiliary circuit. The two voltage doubling circuits for generating positive and negative high voltages share one set of converter and transformer, so that the efficiency is improved, and the installation size is reduced; the output current of the high-voltage power supply is monitored in real time, the high voltage is closed when the current is lower than a set threshold value, and the high voltage is restarted after a period of time, so that the operation efficiency is further improved; compared with a scheme of increasing the capacity of a storage battery, the high-voltage power supply has the advantages that the cost of the system can be greatly reduced, experimental results show that the high-voltage power supply can continuously run for more than 30 days under the condition that only one 9V dry battery is used, and compared with the prior art, the endurance time of the high-voltage power supply is remarkably prolonged.

The utility model discloses a test loading device for testing the bonding performance of reinforcing steel bars and concrete, and belongs to the technical field of performance testing of concrete structure test pieces. Comprising an external complex stress applying device, a horizontal counter-force structure, a horizontal fixing structure and an anchoring and drawing structure, the external complex stress applying device, the horizontal fixing structure and the anchoring and drawing structure are all located above the horizontal counter-force structure, and the external complex stress applying device is used for applying complex stress to a reinforced concrete test piece in the circumferential direction; before testing, the steel bar is placed in a corrosion pool to be corroded, the steel bar in the reinforced concrete test piece penetrates through the horizontal counter-force structure, and anchoring and drawing structures are installed at the free end and the drawing end of the steel bar. The device is small in size and weight, simple in testing method, easy to operate, good in flexibility and easy to carry. And the accuracy of a test result is improved. And the test of the bonding performance of the reinforced concrete test piece under the coupling action of external complex stress and steel bar corrosion is realized.

The present invention discloses an extreme high power density cylindrical linear motor, comprising a frame, a cylindrical primary assembly, a secondary assembly, a connecting piece, a hanging piece and a friction pair sliding piece; the frame comprises a primary mounting assembly, a long strip-shaped beam and a hanging piece; there are two primary mounting assemblies, which are respectively sleeved on the two ends of the primary assembly, the secondary assembly is sleeved in the middle of the primary assembly, and there are two long beams, which are symmetrically mounted on the upper and lower ends of the two primary mounting assemblies; a vertical hollow structure is arranged on the end face of the long beam close to the primary assembly, a horizontal hollow structure is arranged in the middle of the long beam, the hanging piece is embedded in both sides of the long beam, and grooves for placing the friction pair sliding pieces are also provided on the left and right side surfaces of the hanging piece, so that the winding utilization rate is high; the secondary is a cylindrical iron core with an embedded permanent magnet structure, which does not need to be powered by wires, so that it is easy to install and convenient to be hung with an execution structure; the motor has a small volume and weight and has a high thrust density.

The utility model discloses a writing pen, which comprises a pen body, a pen core and a pen cap, the movable mechanism is rotatably connected to the pen body and at least comprises a lifting assembly; the marking body is movably arranged on the movable mechanism, and at least part of the marking body abuts against the lifting assembly; the marking body has a storage state and an exhibition state, and at least part of the marking body is hidden in the movable mechanism in the storage state; in the exhibition state, at least part of the marker protrudes out of the top of the movable mechanism; the pen body and / or the movable mechanism are / is rotated, the lifting assembly can move upwards relative to the movable mechanism, and the marking body is lifted upwards, so that the marking body is switched from the storage state to the exhibition state. When in use, the marking body is shielded by the movable mechanism, when the movable mechanism is rotated, the marking body can extend out of the top of the movable mechanism, the marking body can be switched from an exhibition state to a storage state once rotation is stopped or the rotating speed of the movable mechanism is reduced, the use interestingness is high, and the overall structure is simple.

The invention relates to the technical field of low-voltage electric appliance manufacturing, in particular to a contact arc extinguishing system and a circuit breaker, which comprises an arc extinguishing assembly, a static contact is arranged in the arc extinguishing assembly, a movable contact capable of rotating is arranged in the arc extinguishing assembly, and the static contact and the movable contact can be in contact or separated operation. The arc extinguishing assembly comprises an arc extinguishing chamber and a protective cover; arc-isolating walls are arranged on two sides of the arc-extinguishing chamber; a first arc-extinguishing grid sheet, a second arc-extinguishing grid sheet, a third arc-extinguishing grid sheet and a fourth arc-extinguishing grid sheet are arranged between the two arc-isolating walls; each second arc-extinguishing grid sheet is provided with a first inclined plane and a second inclined plane, a first gap is arranged at the joint of the first inclined plane and the second inclined plane, the first gap is deviated to one side of the second arc-extinguishing grid sheet, and the second arc-extinguishing grid sheets are sequentially arranged in a staggered manner according to the position of the first gap. The projection of the first gap on the plane where the first arc extinguishing grid sheet is located is located in the first arc extinguishing grid sheet.

The utility model relates to an active gas-liquid suspension system which comprises a plurality of gas-liquid suspension systems, a vehicle height sensor, a central control unit and a hydraulic energy storage liquid filling and recycling device. Each gas-liquid suspension system is mounted corresponding to each wheel; the vehicle height sensor is connected with the central control unit; the central control unit is connected with the hydraulic energy storage liquid filling and recycling device so as to control the hydraulic energy storage liquid filling and recycling device. The hydraulic energy storage liquid filling and recycling device is connected with the multiple gas-liquid suspension systems so as to provide hydraulic pressure for the multiple gas-liquid suspension systems. The central control unit judges according to the vehicle height information detected by the vehicle height sensor, the vehicle body posture and command information so as to change the damping of the active gas-liquid suspension system, and the overall size of the system is relatively compact and simple.

The modular ROV switching lifting device comprises a lifting frame, a retracting winch, a butt joint assembly, a supporting frame, a hydraulic system and an electric control system, the upper portion of the lifting frame is connected with an original lifting system of a mother ship, the lower portion of the lifting frame is connected with the retracting winch through a bolt, and two side plates of the lifting frame are connected with the butt joint assembly through two guide rods; the lug plates on the supporting frame side plates are used for being connected with an ROV guide connector body, fixed to a guide connector and connected with a deck to be fixed to the deck. An electric control assembly in the electric control system and a hydraulic assembly in the hydraulic system are both placed on a side plate of the winding and unwinding winch; the winding and unwinding winch is controlled by a console and a remote controller, and the winding and unwinding winch is connected with an ROV lifting point through a winch cable to complete the laying and winding operation of the ROV; through the modularized ROV switching lifting device, quick reloading can be completed in a short time, and quick switching from a manned submersible launching and recovery system to an ROV launching and recovery system is achieved.

The invention discloses a white spirit brewing raw material mixing device, and relates to the technical field of mixing. The problem of mixing efficiency is solved. The device specifically comprises a tank body and a tank cover fixed to the top of the tank body through bolts, a stirring mechanism is arranged at the bottom of the tank cover, a driving mechanism used for driving the stirring mechanism is arranged at the top of the tank cover, a feeding port is welded to the top of the tank cover, and the end face of the feeding port is detachably connected with a blocking cover; the stirring mechanism comprises an inner shaft and an outer shaft which are rotatably connected to the tank cover, and the inner shaft and the outer shaft are coaxially arranged. The stirring mechanism is arranged to be a combination of the inner shaft and the outer shaft, and is matched with the stirring rod and the spiral blade, so that on one hand, an adjacent mixing effect can be realized by utilizing stirring of the stirring rod, and on the other hand, materials can be conveyed along the interior of the outer shaft through rotation of the spiral blade and then are mixed with other raw materials in a jumping manner; therefore, the mixing efficiency and effect are improved.