58results about How to "No frequent disassembly" patented technology

The invention discloses a point joint tensile-shear strength testing device capable of applying multi-directional loads, and relates to the multi-directional tensile-shear strength testing experiments of lap-joint point joints for panels. The device comprises a clamp body, a clamping block, a fastening bolt, a stress block and a stress block fastener, wherein the clamping block is arranged in the clamp body, the stress block is fixed on the clamp body by the stress block fastener, the fastening bolt is used for fastening the clamping block, the lap-joint point joint is arranged between an upper clamp body and a lower clamp body during use, and the stress blocks with different angles are force-applied to achieve the multi-directional tensile-shear load-applying testing. The point joint tensile-shear strength testing device has the advantages of convenience in installation and simplicity in operation, and can apply the multi-directional loads.

The invention discloses an anti-skidding wheel plate which comprises a circular wheel plate, a plurality of anti-skidding teeth and an adjusting plate, wherein the anti-skidding teeth are distributed along the radial direction of the wheel plate; the adjusting plate is arranged at the center of the wheel plate; the anti-skidding teeth are connected with the adjusting plate through adjusting connecting rods; an adjusting handle is mounted on the adjusting plate; the anti-skidding teeth stretch out or retract under the driving of the adjusting plate which is driven by rotating the adjusting handle; each of the anti-skidding teeth is composed of an outmost anti-skidding tooth sheet, a middle anti-skidding connecting rod, an external anti-skidding tooth sleeve, a damping spring sleeved on the anti-skidding connecting rod and a connecting slide block. The anti-skidding wheel plate is designed in an external hanging form, so that the anti-skidding wheel plate is not ground by an automobile and no bump is generated; the anti-skidding wheel plate is not in direct contact with an automobile body, so that the noise caused by striking the automobile body is avoided; the anti-skidding wheel plate is directly mounted on a wheel hub, need not be frequently detached and is convenient to use; four surfaces of the anti-skidding teeth work together, so that the lateral sliding problem is solved; the anti-skidding wheel plate is not ground by the wheel, so that the service life is long; the anti-skidding teeth are automatically adjusted, so that the running speed is not influenced; and a wheel plate frame is bigger than the wheel hub, so that the danger caused by tire burst is reduced.

The invention provides a travel bag lifting durability and roller walking wear resistance detecting device, comprising a base, a supporting disc and a supporting arm. A second clamping block is movably mounted on the other side of an adjustable bolt, and the mounted support plate is convenient for use. Four electric push rods are directly controlled by a control panel to continuously stretch and retract, and the top supporting plate and the supporting arm are directly driven to move up and down when carrying out the lifting durability test, thereby driving to simulate the lifting test of the travel bag. A motor is first turned on by the control panel, and a pinion is driven to rotate while the motor rotates when carrying out the roller walking wear resistance test, so that the pinion drives the supporting disc to rotate continuously through an annular protrusion on the outer side of the supporting disc. In this way, the rollers at the bottom of the travel bag can rotate relative to thesupporting disc, so that the roller walking wear resistance test of the travel bag is simulated. The device can perform two kinds of tests and is more convenient to use since two kinds of tests can be carried out without frequent disassembly.

The invention discloses a mine draw shaft safety protection structure. The mine draw shaft safety protection structure comprises a fixed support arranged above the outer side of a draw shaft opening. An oil cylinder support is arranged on the draw shaft opening below the fixed support. The fixed support is hinged to the head end of a main beam. An upper oil cylinder is hinged between the front section of the main beam and the oil cylinder support. The rear section of the main beam abuts against the top edge of the draw shaft opening and stretches into the draw shaft opening. The tail end of the main beam is hinged to the head end of an auxiliary beam. The tail end of the auxiliary beam abuts against the bottom surface of the draw shaft opening. A lower oil cylinder is hinged between the auxiliary beam and the rear section of the main beam. An upper cover plate is arranged above the rear section of the main beam. A rear cover plate is arranged on the inner side of the auxiliary beam. The mine draw shaft safety protection structure can be installed on the draw shaft opening, workers do not need to enter a draw shaft to conduct operation, potential safety hazards are avoided, and safety protection is provided for maintenance of a draw shaft ore drawing device; multi-point fixation is adopted, and therefore stability and stability of the whole structure are improved; the mine draw shaft safety protection structure is convenient and quick to use, a great amount of maintenance time can be saved, and labor intensity is relieved.

The invention provides an off-gas treatment system and method. The treatment system comprises an off-gas adsorption subsystem and a cooling subsystem, wherein the off-gas adsorption subsystem comprises an adsorption unit and a purification unit; and the cooling subsystem is arranged between the adsorption unit and the purification unit, and the adsorption unit is arranged at the rear end of an automobile exhaust pipe. According to the off-gas treatment system and method, adsorption-cooling-adsorption treatment is performed on automobile off-gas, so that thermal pollution generated by off-gas is also eliminated to a certain extent under the precondition of performing treatment on chemical pollution of the off-gas.

The invention discloses a Collapsible volume array type low-frequency transformer substation noise nephogram test device and a test method. The device comprises a movable pedestal, a fixed disk, a floating disk and several array arms; the fixed disk is mounted on the movable pedestal through a mounting rack, a track is arranged on the fixed disk, the floating disk is mounted on the track, and a camera is arranged on the fixed disk; each array arm is connected on the fixed disk through hinge joint, each array arm is connected with the floating disk through one connection rod, and two ends of the connection rod are respectively connected with the array arm and the floating disk through hinge joint; each array arm is provided with several sound sensors; and the camera and a signal output endof each sound sensor both are connected with a data acquisition processing device. The array arms of the device provided by the invention can be collapsed and keep constant size, movement of the wholedevice can be realized through the movable pedestal, a virtual large-size array can be synthesized through phase compensation and special position compensation, and consequently, relatively accuratetest for the low-frequency noise in the transformer substation can be realized.

The invention discloses a car coupler connecting device. The car coupler connecting device comprises a car coupler connecting device main body and a supporting frame, wherein one end of the supporting frame is fixedly connected with a trailer, and an inclined downward slope part is arranged at the other end of the supporting frame; one end of the car coupler connecting device main body is connected with the trailer by virtue of a connecting hole and a first spindle penetrating through the connecting hole, and a car coupler connecting part connected with the trailer is arranged at the other end of the car coupler connecting device main body; the car coupler connecting device main body is connected with the slope part by virtue of a connecting component, the connecting component comprises a second spindle and elastic components symmetrically arranged at the two sides of the car coupler connecting device main body, the axis of the first spindle is vertical or approximately vertical to the horizontal plane, and a certain included angle is kept between the axis of the second spindle and the axis of the first spindle. The car coupler connecting device disclosed by the invention can be applicable to complicated road changes and safely and efficiently pull and rescue fault rail transit vehicles.

The invention relates to a milling machine which comprises a machine base, a driving assembly and a milling assembly. The machine base comprises a base, two transverse beams and an installation beam, and the two transverse beams are arranged on the base in a spaced manner; the driving assembly comprises an installation block, a lifting air cylinder, a sliding block and a driving piece, and the installation beam is provided with a plurality of installation grooves; and the milling assembly comprises a main shaft and a milling cutter connected to the main shaft, and the main shaft is connected to the driving piece. The base is further provided with a closing assembly located between the two transverse beams, the closing assembly comprises a closing cylinder and a closing ring arranged at the periphery of the closing cylinder, a closing cavity is formed in the closing cylinder, and a milling cutter groove is formed in the bottom of the closing cavity. The milling cutter of the milling machine can be installed in place, and the milling process is relatively simple.

A rotary cap locking device is characterized by comprising a base, a rotating assembly, a crank and slider mechanism, a support and a locking rod, wherein the rotating assembly is rotationally arranged on the base; one end of the crank and slider mechanism is connected with the rotating assembly, one end of the crank and slider mechanism is connected to the base in a limited manner, and the crankand slider mechanism can move relative to the base under the drive of the rotating assembly; the support is rotationally connected with the base and is in linkage connection with the crank and slidermechanism; the support is driven by the crank and slider mechanism to rotate around the base; and the locking rod is fixedly connected to the support; the rotating assembly can drive the crank and slider mechanism to move when rotating, and the crank and slider mechanism can drive the support to rotate around the base and further drive the locking rod to be separated from the original position when moving. The rotary cap locking device is reliable in connection, can prevent accidental unlocking, is convenient to operate and can greatly improve the convenience degree and efficiency of maintenance and overhaul.

The invention relates to the technical field of air purification of workshops and air conditioners, in particular to a return air filtering device for an air hundling unit and the air hundling unit. The return air filtering device for the air hundling unit comprises a box body which comprises an air inlet and an air outlet which are oppositely arranged, and the box body is internally provided witha spraying device, an oil mist filter and an oil collector; the spraying device is located between the air inlet and the oil mist filter and used for spraying a cleaning agent to the oil mist filter;the cross section of the oil mist filter is in a honeycomb shape; and the oil collector is located on the lower part of the oil mist filter and detachably connected with the box body. According to the return air filtering device for the air hundling unit and the air hundling unit, the oil mist filter is arranged to perform effective purification on oil mist in return air, and filtering screens inthe air hundling unit is prevented from being blocked by oil dirt. Meanwhile, the oil mist filter can be cleaned, oil mist liquid drop which is washed down falls into the oil collector under the action of own gravity, recycling of the oil mist filter can be ensured, and the purifying efficiency is improved. The operation is convenient and rapid, and the working efficiency is high.

The invention discloses a detector for the vacuum state in a ship tail shaft sealing chamber. A plurality of sealing chambers are arranged at a ship tail shaft part, wherein the detector comprises a detection port arranged on the side wall of each sealing chamber; the detection port of each sealing chamber is connected with an air inlet port of a one-way valve; the other end of the one-way valve is provided with a detector connection port; the detector comprises a detection tube; one end of the detection tube is connected with the other end of the one-way valve; the other end of the detectiontube is connected with a vacuum generator; a control valve is connected in series with the detection tube; a vacuum degree detection port is arranged on the detection tube at one side of the control valve; an elastic adhesive film is arranged on the vacuum degree detection port; a conductive layer is attached to the elastic adhesive film; the upper end or the lower end of the vacuum degree detection port is provided with a pair of electrodes which correspond to the conductive layer in position and are separated from each other; and the pair of electrodes are connected with a controller and thelike through a wire. When the negative pressure in the detection tube reaches a set negative pressure value, the elastic adhesive film is recessed to make the conductive layer connect or disconnect the pair of electrodes.

The invention provides a corrosion resistance experiment method of a metal corrugated pipe, which is realized based on one set of device. The device comprises a pipeline, a corrosion-resisting storagetank, a corrosion-resisting pump, a ball valve, an electromagnetic flow meter, a resistance probe, a thermometer, a pH (Potential of Hydrogen) meter and a dissolved oxygen meter, wherein the pipelineis connected with a metal corrugated pipe to be tested in series; the metal corrugated pipe is provided with a monitoring device and is used for monitoring a corrosion condition in the metal corrugated pipe in real time. The method provided by the invention can be used for really simulating a flowing state and multi-phase flow corrosion of an industrial field and can realize in-situ nondestructive online monitoring of the simulated metal corrugated pipe; the metal corrugated pipe does not need to be frequently detached and an applicable medium range is wide; uniform corrosion and local corrosion information can be provided and corrosion resisting performance and a corrosion mechanism of the pipeline also can be judged; an online monitoring device for corrosion in the pipeline has the characteristics of integrating monitoring, analysis and management, and detecting in real time and the like.

A rapid brake system for a truck in winters comprises an ice layer thickness detecting instrument, a control module and an anti-sliding device, wherein the ice layer thickness detecting instrument isused for detecting the thickness of an ice layer of a road surface; the ice layer thickness detecting instrument transmits examination information to the control module; and the control module acts tocontrol operation of the anti-sliding device. The overall rapid brake system is mounted in a box, the whole box is mounted on the bottom of the truck, the rapid brake system can be mounted for a longtime and is also suitable for an environment where rapid braking cannot be implemented due to an environment which does not have ice or snow, therefore, the rapid brake system does not need to be disassembled frequency after being used, and the danger caused by the reason that an anti-sliding chain is not mounted in time when a user suddenly encounters an environment with ice and snow is avoided.In addition, the rapid brake system is convenient to mount, and can be rapidly assembled and disassembled through mounting bolts.

The invention provides a device for automatically adjusting the ventilation quantity of a cooling tower. A supporting plate comprises an upper plate and a lower plate which are positioned at the upperend and the lower end of a tower body ventilating opening of the cooling tower; the upper plate and the lower plate are connected with the tower body of the cooling tower in a sealed manner respectively; a plurality of rotating shafts are uniformly distributed on the supporting plate; a vertical louver board is fixedly arranged on each rotating shaft; the rotating shafts are connected with the output end of a transmission device; the input end of the transmission device is connected with the output end of a motor; a cooling water temperature sensor is positioned in cooling water in the cooling tower; the motor is connected with a control device; the output end of the cooling water temperature sensor is connected with the control device. The device for automatically adjusting the ventilation quantity of the cooling tower has the beneficial effects as follows: the device for automatically adjusting the ventilation quantity of the cooling tower can monitor whether the temperature of thecooling water meets a set value in real time or not and adjust the opening and closing angle of the vertical louver board in real time according to the situation so as to adjust the air intake of thetower body ventilating opening, does not need manual participation in the whole process, has high degree of automation, does not frequent detachment and mounting, saves manpower and material resources, has low overall production cost, and is suitable for popularization.

The invention provides a test system of high power frequency conversion electric drive equipment. The system comprises a test load feedback unit, a tested motor which is in a transmission connection with the test load feedback unit, a tested frequency converter which is connected to the tested motor, and a test driving feedback unit which is connected to the output end of the tested frequency converter, wherein the power end of the test load feedback unit is connected to a direct current bus, and the power end of the test driving feedback unit is connected to the direct current bus. Through the above structure, the adaptability and transform ability of the system can be effectively improved, the whole can accurately test high voltage frequency conversion drive equipment, a test structure is effectively simplified, frequent disassembly and assembly are not needed, the test efficiency is improved, and the labor intensity and cost are reduced.

The invention relates to a milling machine which comprises a machine base, a driving assembly and a milling assembly. The machine base comprises a base, two transverse beams and an installation beam, and the two transverse beams are arranged on the base in a spaced manner; the driving assembly comprises an installation block, a lifting air cylinder, a sliding block and a driving piece, and the installation beam is provided with a plurality of installation grooves; and the milling assembly comprises a main shaft and a milling cutter connected to the main shaft, and the main shaft is connected to the driving piece. The base is further provided with a closing assembly located between the two transverse beams, the closing assembly comprises a closing cylinder and a closing ring arranged at the periphery of the closing cylinder, a closing cavity is formed in the closing cylinder, and a milling cutter groove is formed in the bottom of the closing cavity. The milling cutter of the milling machine can be installed in place, and the milling process is relatively simple.

The invention relates to the technical field of computers, in particular to an extensible computer memory mounting groove and a using method thereof. The extensible computer memory mounting groove comprises a computer case and a rotating shaft rotationally arranged in the computer case, an extension mechanism is arranged on the rotating shaft, a hard disk groove is formed in the extension mechanism, and one end of the rotating shaft is connected with a rotating handle; a dustproof window is arranged on the front side face of the computer case body in a sliding mode, a cylindrical sliding groove and a pressing handle are arranged on the two sides of the installation notch respectively, a clamping mechanism is arranged at one end of the expansion mechanism, and the pressing handle and the clamping mechanism are located on the same horizontal axis. The extension mechanism is rotated by rotating the handle, then the unused hard disk groove is selected, the hard disk needing to be extended is directly placed in the hard disk groove and locked through the automatic locking mechanism, a computer does not need to be frequently disassembled and assembled, the hard disk does not need to be frequently replaced, and extension is conducted under the condition that normal use of the computer is not affected; the efficiency of mounting and dismounting the memory is improved, and meanwhile, the risk generated in the expansion process is reduced.

The invention discloses a single-phase intelligent electric energy meter based on the Internet of Things, and belongs to the technical field of single-phase intelligent electric energy meters, the single-phase intelligent electric energy meter comprises an electric energy meter body, the left and right sides of the electric energy meter body are provided with support plates, and the back surfaces of the support plates are fixedly connected with the front surface of a mounting plate. According to the electric energy meter, the electric energy meter body, the access terminal, the conductive sleeve, the conductive plate, the first contact piece, the second contact piece, the hydraulic rod, the conduction piece, the insulating plate and the contact rods are arranged, and the insulating plate drives the multiple contact rods to move upwards and make contact with the second contact piece in the upward moving process; the two second contact pieces on the left side and the two second contact pieces on the right side are conducted, so that the two output phase lines on the left side and the two output zero lines on the right side are communicated, normal circulation of current is achieved while the electric energy meter body is taken out, power-off processing is not needed in the process of replacing the electric energy meter body, and normal power utilization of a user is not affected. The power supply reliability is improved.

The invention discloses a device for detecting the air tightness of a dissipative muffler. The device comprises an engine case, a working cavity and a sliding valve, wherein a rotating roll is arranged on a side surface of the sliding valve; the periphery of the top surface of the engine case is bulged upward; screw holes are formed in the bulged part; a cooling water cover is arranged above the engine case; through holes are formed in the cooling water cover; bolts penetrate through the through holes and are inserted into the screw holes; a plurality of baffle plates are arranged under the cooling water cover; cavities are formed in the baffle plates; springs and supporting plates are arranged in the cavities; the lower parts of the supporting plates are connected with bases; a water inlet and a water outlet are respectively mounted on two mutually parallel side surfaces of the cooling water cover; when the cooling water is mounted on the engine case, the bottoms of the baffle plates are in contact with the engine case, and the baffle plates are perpendicular to side surfaces of the bulged part; and the baffle plates are parallel to one another, and every two adjacent baffle plates are connected onto the different side surfaces of the bulged part. The device not only is convenient to clean, but also has the advantage that the engine case assembly is prevented from being repeatedly dismounted from and mounted in a screw rod compressor, so that the working strength of operating personnel can be reduced and the service life of the engine case can be prolonged.

The invention provides a corner protection mechanism and an LED display screen. The corner protection mechanism comprises a corner protection base, a corner protection body and a pressing assembly, the corner protection body is movably connected with the corner protection base, and the corner protection body has a first state and a second state relative to the corner protection base; when the corner protection body is in the first state relative to the corner protection base, the corner protection body is far away from the display screen, and the pressing assembly locks the corner protection body; and when the corner protection body is in the second state relative to the corner protection base, the pressing assembly releases the locking of the corner protection body, the corner protectionbody is arranged adjacent to one side edge of the display screen, and the corner protection body and the corner protection base are matched together to protect the corner of the display screen. When the corner protection mechanism is adopted, the corner protection mechanism does not need to be frequently mounted or dismounted, only the state of the corner protection body needs to be switched, theoperation is simple, the efficiency can be greatly improved, and the corner protection mechanism is fixed with a box body of the display screen and is not likely to lose.

The invention discloses an ecological agriculture and forestry soil turnover device and belongs to the technical field of ecological agriculture and forestry. The device comprises a bottom plate, wherein universal wheels are arranged at the bottom of the bottom plate in a connection manner; a working box is arranged at the top of the bottom plate in a connection manner; a holding handle is arranged on the left side wall of the working box in a connection manner; an opening is formed in the bottom plate; a semicircular baffle plate is fixedly connected with the left side of the top of the bottom plate; a through hole is formed in the center of the top of the semicircular baffle plate; a hydraulic cylinder is fixedly connected with the left side of the top of the inner cavity of the workingbox; a bottom telescopic end of the hydraulic cylinder penetrates through the through hole and is connected with an arc-shaped baffle plate; two groups of support plates in symmetry left and right arearranged at the bottom of the arc-shaped baffle plate in a connection manner; a first motor is arranged on the support plate on the right side in a connection manner; a rotating rod is arranged at apower output end on the left side of the first motor in a connection manner; the rotating rod is rotationally connected with the two groups of the support plates through bearings; and a soil turnovertool is arranged on the outer side of the circumference of the rotating rod in a connection manner. That is, the invention provides the ecological agriculture and forestry soil turnover device which is convenient in height adjustment.

According to the unsteady-state hedging flame burner structure with the height controllable speed boundary, a burner comprises an oxidizing agent injector and a gaseous fuel injector which are oppositely arranged up and down, and the oxidizing agent injector and the gaseous fuel injector are coaxially arranged in the vertical direction; an injection opening of the oxidizing gas injector and an injection opening of the gaseous fuel injector are oppositely arranged up and down, an oxidizing agent end gas vibration generator is arranged at the top of the oxidizing gas injector, and the oscillation generating end of the oxidizing agent end gas vibration generator directly faces a gas injection channel of the oxidizing gas injector; a fuel end gas vibration generator is arranged at the bottom of the gaseous fuel injector, and an oscillation generating end of the fuel end gas vibration generator is arranged right opposite to a gas injection channel of the gaseous fuel injector. According to the design, unsteady flame with controllable outlet speed boundary height can be formed, and the influence of different waveform conditions on opposed firing soot can be accurately observed.

The invention provides an air purification device. The air purification device comprises a containing box body, a purification and disinfection device and a temperature and humidity adjusting device. In the working process, air enters a containing cavity, water is added into a water purification device, the water in the water purification device is disinfected and purified, and the disinfected and purified water is conveyed to the upper portion of the containing cavity through a water circulation conveying assembly and sprayed to the lower portion of the containing cavity through the water circulation conveying assembly to form water mist. To-be-purified air flows below the water circulation conveying assembly, the water mist adsorbs bacteria, viruses or granular pollutants in the air to disinfect and purify the air, the disinfected and purified air flows into the temperature and humidity adjusting device towards the rear end, and after the temperature and humidity are adjusted to the required temperature and humidity through the temperature and humidity adjusting device, the air is finally exhausted into a required working environment through an air outlet. The air purification device purifies and disinfects the air through the disinfection and purification device, the arrangement of multiple sets of filter screens is avoided, the filter screens do not need to be frequently disassembled, cleaned and replaced in the usage process, and the labor cost and the consumable cost of the filter screens are saved.

The invention relates to an aluminum-plastic panel production technology. The technology mainly comprises steps as follows: preparation work, installation work, plate placement, pressing work and detection and stacking, wherein used pressing equipment comprises an installation base frame, a lifting air cylinder is installed at the lower end of the installation base frame, and a lifting base frameis installed at the lower end of the lifting air cylinder. The technology can solve following problems in a production process of existing concave-convex structured aluminum-plastic panels: a, the problem that a processing roll press head for the aluminum-plastic panels is required to be adjusted and replaced manually according to production requirements when traditional aluminum-plastic panel manufacturing equipment works for producing the concave-convex aluminum-plastic panels with different specifications; and b, the problem that the mounting position of the roll press head is required to be adjusted according to processing specifications of the aluminum-plastic panels except for need of roll press head replacement in the concave-convex processing work of the aluminum-plastic panels, the adjusting distance of the processing roll press head cannot be accurately controlled when the position of the roll press head is replaced and adjusted and the mounting position is easily loosened due to frequent replacement and dismounting of the roll press head.

The invention belongs to the field of automobile sensing component detection devices and particularly relates to an automobile current sensor detection device. The device comprises an outer cover (2),a workbench component (6), a control module, a pneumatic control component (9) and a standard direct-current source (12), wherein a clamping component (5), a testing component (8), a guiding component (10), a plain shaft driving component (11), a ball screw module (13) and a servo motor (14) are fixedly arranged in the outer cover (2); the movable end of the ball screw module (13) is fixedly connected with the bottom of the plain shaft driving component (11); plain shafts (78) are transversely and fixedly arranged on the plain shaft driving component (11); and the pneumatic control component(9) comprises an air source and an electromagnetic reversing valve. The device is high in test efficiency, high in test precision, high in automatic degree, good in safety and capable of measuring linearity, response time, measurement frequency and other parameters simultaneously.

The invention discloses an auxiliary pressure system for exploring the effect of a silencer. The auxiliary pressure system comprises a shell, a working cavity and cooling fans, wherein a cooling water cover matched with the shell is arranged above the shell; through holes are arranged in the cooling water cover; screws penetrate through the through holes and are inserted into screw holes; a plurality of baffles are arranged under the cooling water cover; a cavity is arranged in each baffle; a spring and a support plate are arranged in each cavity; a base is connected to the lower end of each support plate; and a water inlet and a water outlet are installed on the mutually parallel side surfaces of the cooling water cover respectively. The bottom of each baffle make contacts with the shell and the baffle is vertical to the side surfaces of a bulged part when the cooling water cover is installed on the shell. The baffles are mutually parallel, and each two adjacent baffles are connected to different side surfaces of the bulged part. The system is convenient to clean, and has no need to frequently dismount a shell assembly from a screw compressor and install the shell assembly in the screw compressor, thus reducing the working intensity of operating personnel and prolonging the service life of the shell.

The invention discloses an automobile transmission lubricating oil gas content detection system, method and device and a storage medium. The method comprises the following steps: acquiring a gas content detection demand; generating a reversing valve control signal according to the gas content detection requirement, so that a reversing valve switches an oil way according to the reversing valve control signal, and the working mode of the detection system is switched; generating a pressure control signal according to the oil way pressure of the first oil way / the second oil way so as to control the oil way pressure in the first oil way / the second oil way; generating a flow control signal according to the oil way flow of the first oil way / the second oil way so as to control the oil way flow in the first oil way / the second oil way; and generating a detection control signal according to the gas content detection requirement, so that the gas content detection unit detects the gas content in the lubricating oil according to the detection control signal. According to the invention, the gas content of lubricating oil under a power-source-free oil path can be detected, the pressure and flow of a medium entering gas content detection equipment can be controlled, and the gas content detection equipment does not need to be frequently disassembled.

The invention provides a mobile phone shell capable of being wirelessly charged. The mobile phone shell capable of being wirelessly charged comprises a mobile phone shell sleeve, a wireless charging device and a movable charging connector. According to the mobile phone shell, a mobile phone can have a wireless charging function. Due to the fact that the charging connector of the mobile phone shellis movable, when the mobile phone needs to be connected with an external data line, only the charging connector needs to be pulled out, a mobile phone charging interface is made, the data line can beinserted into the mobile phone, and the mobile phone shell does not need to be frequently disassembled. Meanwhile, the sleeve body of the mobile phone shell is made by adopting a bijection injectionmolding process and is assisted by a surface treatment process of in-mold insert injection molding, so that the use experience of a user is optimized while the protection performance of the mobile phone is ensured.

Disclosed is a frozen road car sliding preventing system. The frozen road car sliding preventing system comprises an ice layer thickness detector for detecting the thickness of a road ice layer, a control module and a car sliding preventing device, wherein the ice layer thickness detector transmits detected information to the control module, and the control module acts to control the car sliding preventing device to work. The frozen road car sliding preventing system is integrally mounted inside a tank which is entirely mounted at the bottom of a truck to avoid long-time installation; the frozen road car sliding preventing system is also applicable to preventing car sliding on occasions without snow and ice, thereby saving frequent mounting and dismounting during application and avoiding danger in sudden snow situations due to failure in mounting in time. Besides, the frozen road car sliding preventing system can be conveniently mounted through bolts to achieve rapid mounting and dismounting.

The invention relates to the field of bearing bush machining, in particular to bearing bush inner hole milling and grinding integrated equipment which comprises a supporting seat, a milling and grinding assembly and a clamping, moving and rotating assembly. The milling and grinding assembly comprises a first motor, a lifting plate, a first threaded rod, a first clamp, a milling cutter and a grinding rod. The clamping, moving and rotating assembly comprises a supporting rod, an electric sliding table, a second motor and a second clamp. When the device is used, after the surface of an inner holeof a bearing bush is attached to the grinding rod, the second motor drives the second clamp to drive the bearing bush to rotate, and after grinding is completed, the second clamp can be opened to collect the ground bearing bush. Milling and grinding are carried out on the same equipment, the bearing bush does not need to be frequently disassembled and fixed, then the bearing bush does not need tobe carried, the machining of the inner hole of the bearing bush is labor-saving and time-saving, and the machining efficiency of the inner hole of the bearing bush can be improved.