294results about How to "Impact resistance" patented technology

The three-movement and one-rotation parallel robot with the locking mode comprises a fixed platform and a movable platform, and a first kinematic chain, a second kinematic chain, a third kinematic chain and a fourth kinematic chain are arranged between the fixed platform and the movable platform; the first kinematic chain comprises a first revolute pair R11, a second connecting rod assembly, a fifth connecting rod assembly and an eighth revolute pair R18; the second connecting rod assembly is connected with the fixed platform through a first rotating pair R11, and the fifth connecting rod assembly is connected with the movable platform through an eighth rotating pair R18. A first branch chain and a second branch chain are further arranged between the second connecting rod assembly and the fifth connecting rod assembly, and the second connecting rod assembly and the fifth connecting rod assembly are connected through the first branch chain and the second branch chain. According to the robot, the robot can be switched to the locking mode through an auxiliary drive, the robot can keep the stable posture without locking drive in the mode, and the requirement that the movable platform has certain static bearing capacity and rigidity under the specific static configuration can be met.

The invention relates to the technical field of building materials, and particularly discloses high-strength lightweight concrete containing hollow glass beads and a preparation method of the high-strength lightweight concrete. The high-strength lightweight concrete containing the hollow glass beads is prepared from cement, fly ash, carbon fiber grafted hollow glass beads, lightweight sand, deionized water, polypropylene fiber grafted rubber particles and a water reducing agent according to the mass ratio of (58-75): (25-38): (45-65): (20-40): (42-55): (35-55): (5-12) through mixing, mold filling, vibration molding, covering and demolding. The addition amount of the hollow glass beads is strictly controlled, the influence on the overall strength of the concrete is avoided, the density and weight of the concrete are reduced due to the addition of the light sand and the hollow glass beads, the compactness and integrity of the concrete are improved due to the synergistic effect of the two added fibers, and the raw materials have excellent cohesiveness; the concrete can effectively absorb and disperse stress, and has the advantages of excellent strength, light weight, good durability and excellent comprehensive performance.

The invention relates to the field of building materials, and particularly discloses a fireproof plate and a preparation method thereof. The fireproof board comprises a base material, reinforcing layers wrapping the two sides of the base material and fireproof coatings coating the outer surfaces of the two sides of the board, the base material comprises wood flour, silicate compounds and phenolic resin adhesives, the two sides of the base material are wrapped with glass fiber mesh cloth to serve as the reinforcing layers, and the surfaces of the base material are coated with the fireproof coatings; the fireproof coating is prepared from the following raw materials in parts by weight: 20 to 30 parts of hollow glass beads, 10 to 15 parts of ammonium polyphosphate, 5 to 10 parts of nano metal oxide, 10 to 15 parts of magnesia, 5 to 10 parts of tetraethoxysilane, 15 to 30 parts of epoxy resin and 30 to 40 parts of water. The composition disclosed by the invention has the advantages of fire prevention and high temperature resistance.

The organosilicon-polyurethane foam encapsulating material is composed of a component A and a component B. The component A comprises sucrose initial polyether polyol, sorbitol initial polyether polyol, a water-containing alcohol amine foaming agent, a catalyst and a halogen-free flame retardant, and the component B comprises an NCO-terminated polysiloxane-polyurethane prepolymer, silicone oil and a diluent. Wherein the water-containing alcohol amine foaming agent comprises isopropyl alcohol di-sec-butyl alcohol amine, a mixture of isopropyl alcohol sec-butyl alcohol amine and water. The two-component encapsulating material is used for encapsulating a new energy battery module.

The utility model relates to a transportation vibration reduction structure of a compressor and a heat pump. The transportation vibration reduction structure of the compressor comprises the compressor, a bottom plate and a vibration reduction mechanism. The vibration reduction mechanism is provided with a first vibration reduction assembly and a second vibration reduction assembly. The second vibration reduction assembly is provided with a chassis and vibration reduction foot pads; the compressor is fixedly connected to the chassis through the first vibration reduction assembly, and the chassis is fixedly connected to the bottom plate through the vibration reduction foot pad. The fixing pieces are arranged along the periphery of the chassis at intervals; the fixing piece is arranged at the bending position of the periphery of the chassis, one end of the fixing piece is detachably connected to the chassis, and the other end of the fixing piece is detachably connected to the bottom plate. According to the transportation vibration reduction structure of the compressor, the fixing piece is arranged at the bent position of the chassis, so that rigid connection between the chassis and the bottom plate is achieved, impact force in multiple horizontal directions generated by violent jolting of the compressor in the transportation process can be better resisted, and pipeline breakage of the compressor is avoided.

The utility model discloses a pair of elastic opening and closing shoes easy to put on and take off. The shoe body comprises a sole, a vamp and an elastic piece; the vamp comprises a half sole part, a heel part and a connecting part which are all connected to the sole, the connecting part is close to the sole and is connected with the lower end parts of the half sole part and the heel part, and the upper end parts of the half sole part and the heel part are separated from each other; the heel part is suitable for being switched between a first state and a second state under the action of external force, when the heel part is in the first state, the heel part is close to the half sole part and matched with the half sole part to form a shoe opening, and when the heel part is in the second state, the heel part is far away from the half sole part and enables the shoe opening to be opened; the elastic piece is connected with the half sole part, the heel part and the connecting part and is suitable for being unfolded under the action of external force, so that the heel part enters the second state; and when the external force is lost, the elastic piece rebounds and resets, so that the heel part returns to the first state. The utility model provides an elastic opening and closing shoe easy to put on and take off, which is easy to open, has excellent recovery performance and ensures the convenience of the shoe in the putting on and taking off process.

The utility model relates to the technical field of composite pipes, and discloses a steel curtain rope belt reinforced polyethylene high-pressure wear-resistant composite pipe for water delivery, which comprises a wear-resistant layer, the wear-resistant layer is made of high-molecular polyethylene materials, a structural layer is adhered to the outer surface of the wear-resistant layer, the structural layer adopts a 100-grade polyethylene core pipe, a reinforcing layer is adhered to the outer surface of the structural layer, and the steel curtain rope belt reinforced polyethylene high-pressure wear-resistant composite pipe is arranged on the outer surface of the reinforcing layer. An outer layer is extruded on the outer surface of the reinforcing layer through hot melting, the outer layer is made of a 100-grade polyethylene material, the outer surface of the outer layer is covered with an outer protective layer through extrusion, and the outer protective layer is made of a polypropylene material. According to the utility model, through the arrangement of the wear-resistant layer, the enhancement layer and the outer protective layer, the pressure resistance of the pipeline can be effectively improved to resist the damage of a water hammer, so that the reliability and the wear resistance of the pipe are improved, and the structural layer is protected from being corroded by sunlight ultraviolet rays by sacrificing the outer protective layer, so that the pipeline can adapt to various environments; the service life of the composite pipe is prolonged, so that the replacement frequency is reduced and the cost is reduced.

The invention discloses preparation of flame-retardant high-toughness PMI foam, and relates to the technical field of high-performance materials. Methacrylic acid, methacrylonitrile, an initiator, a modifier, a foaming agent, a cross-linking agent and a nucleating agent are adopted as main raw materials, a reaction solution is obtained after thickening treatment, then the reaction solution is injected into a mold, and water bath polymerization reaction and heating foaming are performed to prepare the foaming agent. The PMI foam material prepared by the method has excellent flame retardance and high toughness, and is suitable for the fields of aerospace, rail transit and high-end structural materials.

The invention relates to the technical field of lithium batteries, in particular to a battery assembly and a single battery. The battery assembly comprises a pole group, a pole lug and a cover plate; the cover plate comprises a cover plate pole; the cover plate pole comprises a pole base arranged towards the pole group, and the pole base is attached to the pole group; the tab is led out from the pole group and is welded with the surface, far away from the pole group, of the pole base, a welding mark is formed on the tab, and an area formed by the welding mark is defined as a welding area; when F is greater than or equal to 180N and less than or equal to 300N, t is greater than or equal to 800 microns and less than or equal to 1200 microns, and S is greater than or equal to 90 mm < 2 > and less than or equal to 150 mm < 2 >; wherein S is the area of the welding area, F is the thrust when the battery assembly is subjected to thermal runaway, and t is the welding penetration of the welding area. According to the battery assembly and the single battery provided by the invention, the problem that when thermal runaway occurs in an existing battery cell structure, the pole group randomly moves along with high-temperature and high-pressure airflow to shield the anti-explosion valve and further shield the exhaust channel is solved.

The invention belongs to the technical field of plastic pipelines, and particularly discloses a high-impact-resistance PVC composite mute pipe which comprises an inner layer, a foaming sound insulation layer, a hollow silencing layer and an outer layer which are sequentially arranged from inside to outside. The inner layer comprises an inner layer body and a plurality of flow guide screw flights, and the flow guide screw flights are distributed in the circumferential direction of the inner circumference of the inner layer body at intervals. A plurality of silencing holes are formed in the front side face of the hollow silencing layer in the circumferential direction. According to the high-impact-resistance PVC composite mute pipe and the preparation method thereof, the high-impact-resistance PVC composite mute pipe has high strength and high and low temperature impact resistance, and a good noise reduction effect can be achieved.

The utility model discloses an anti-storm anti-toppling buoy which comprises a buoy body and a balance assembly, and the top of the buoy body is of a cavity structure. The balance assembly comprises a balancing weight, a fixing rod, a hinge rod and a bearing plate. The bearing plate is located in a cavity of the buoy body and is in sliding connection with the buoy body, the multiple balancing weights are located in the anti-collision support and are in sliding connection with the anti-collision support, one end of the fixing rod is fixed to the balancing weights, the other end of the fixing rod is hinged to one end of the hinge rod, and the other end of the hinge rod is hinged to the bearing plate; through the arrangement of the balance assembly, seawater is poured into the bearing plate of the buoy body through stormy waves, the gravity of the seawater is utilized to drive the bearing plate to move downwards, the balancing weight is driven to move towards the outer side of the buoy body, the gravity of the outer side of the buoy is increased, and the outer side part of the buoy can be supported by more buoyancy; the impact of large storm waves on the inner side of the buoy is reduced, so that the whole buoy is kept stable, and the buoy is balanced.

The utility model discloses an anti-derailing device for a converter fire door, which belongs to the field of converter equipment and comprises an upper main wheel arranged on the top surface of the converter fire door and a lower main wheel arranged on the bottom surface of the converter fire door, the upper main wheel is in rolling connection with an upper track of the fire door, and the lower main wheel is in rolling connection with a lower track of the fire door. The converter fire door is connected between the fire door upper track and the fire door lower track in a sliding manner through the upper main wheel and the lower main wheel; comprising an auxiliary wheel assembly fixedly connected to one side of the lower portion of the converter fire door, and the auxiliary wheel assembly comprises a connecting part and an auxiliary wheel arranged on the lower portion of the connecting part; the auxiliary wheels are in rolling connection with an auxiliary rail, and the auxiliary rail is parallel to the fire door lower rail; by adding the auxiliary wheel assembly, optimizing the supporting structure, arranging the cleaning part, improving the design of the connecting part and the like, the stability and the safety performance of the fireproof door are effectively improved, the derailment risk is reduced, and a guarantee is provided for safe and smooth steel-making production.

The invention discloses an MOF (Metal Organic Framework) forming material and a preparation method thereof, and the preparation method comprises the following steps: (1) adding MOF powder into a phenolic resin aqueous solution, and uniformly mixing to obtain a plastomer; (2) molding, granulating and drying the plastomer obtained in the step (1) to obtain a particle precursor with uniform particle size; and (3) carbonizing in an inert gas atmosphere to obtain the MOF molding material. The MOF forming material is high in strength and large in specific surface area, and the preparation method is simple in process, low in cost, high in operation repeatability and suitable for industrial production.

The utility model discloses an integrally-formed unmanned aerial vehicle carbon fiber arm which comprises an upper arm part, a reinforcing arm is fixed to the bottom end of the upper arm part, a lower arm part is fixed to the end, away from the upper arm part, of the reinforcing arm, and a second side connecting arm is fixed to the outer wall of one side of the upper arm part. A first side connecting arm is fixed to the outer wall of the side, away from the second side connecting arm, of the upper arm part, a part containing seat is arranged on the outer wall of the side, away from the lower arm part, of the first side connecting arm, and unmanned aerial vehicle seats are installed at the two ends of the second side connecting arm correspondingly. According to the unmanned aerial vehicle arm, the problems that a traditional unmanned aerial vehicle arm is large in weight, insufficient in mechanical strength and poor in fatigue resistance are solved, the overall weight of the unmanned aerial vehicle arm is greatly reduced, and the unmanned aerial vehicle arm can bear large static loads and high-frequency vibration loads without fracture deformation; and impact and vibration can be resisted to a certain extent, and the aim of easily assembling and connecting the unmanned aerial vehicle arms is achieved.

The invention relates to the technical field of environment-friendly materials, in particular to a modified regenerated polyphenyl plastic material and a preparation method thereof. The material is composed of a plurality of novel formula components such as regenerated polyphenyl plastic, hydrogenated SBS, PET-PBS, nano titanium dioxide, an antioxidant 1010, calcium stearate and a phosphorus-containing benzoxazine prepolymer. The preparation method comprises the following steps: synthesizing the novel component, pretreating the regenerated polyphenyl plastic, proportioning, mixing, and carrying out extrusion molding to obtain the product. Through a unique formula and a preparation process, the tensile strength, the impact strength, the thermal deformation temperature, the thermal stability, the flame retardance, the antibacterial property, the fluorescence property and the like of the modified regenerated polyphenyl plastic material are remarkably improved.

The invention relates to a magnetic liquid sealing valve, belongs to the technical field of valves, and solves the technical problem that the sealing performance of a valve in the prior art is relatively weak. The valve body is provided with a valve core and a shell; the sealing structure is provided with a permanent magnet component, a magnetic conducting component and magnetic liquid; the magnetic conductive component is provided with a magnetic conductive ring; the inner ring of the magnetic conducting ring protrudes towards the sealing side in the axis direction of the inner ring; and an included angle a is formed between the inner ring surface N1 of the magnetic conducting ring and the axis M of the valve core. The protruding structure and a certain included angle of the magnetic conducting ring enable magnetic field lines to be more concentrated and ordered, it is ensured that magnetic liquid is arranged along the magnetic field lines and concentrated on the sealing side, and a thicker and more uniform liquid sealing ring is formed. The design of the magnetic conducting ring ensures that more magnetic liquid is guided to the sealing side, the thickness and the uniformity of the liquid sealing ring are improved, and the sealing effect is enhanced.

The invention relates to the technical field of anticorrosive paint preparation, in particular to a water-based graphene anticorrosive antibacterial organic silicon composition for a new energy ship. The invention discloses a water-based graphene anticorrosive antibacterial organic silicon composition for a new energy ship. The water-based graphene anticorrosive antibacterial organic silicon composition is prepared from the following preparation raw materials: 45 to 50 parts of water-based organic silicon resin emulsion, 3 to 3.5 parts of modified graphene-zinc powder, 8 to 12 parts of modified aluminum tripolyphosphate, 1 to 1.2 parts of antibacterial agent, 0.4 to 0.6 part of defoaming agent, 10 to 12 parts of superfine precipitated barium sulfate, 0.5 to 0.7 part of coupling agent, 0.1 to 0.12 part of pH value regulator and 20 to 25 parts of deionized water. According to the water-based graphene anti-corrosion and antibacterial organic silicon composition for the new energy ships, through a unique formula and a modification technology, the adhesive force, the salt mist resistance, the impact resistance and the antibacterial performance are remarkably improved, meanwhile, the requirements for environmental protection and long-term stability are considered, and the water-based graphene anti-corrosion and antibacterial organic silicon composition for the new energy ships is suitable for large-scale popularization and application. The practical value and the application prospect are very high.

The application relates to the technical field of tunnel construction, and discloses a combined segment structure, which comprises a UHPC segment and concrete test blocks, a plurality of concrete test blocks are arranged on the outer side surface of the UHPC segment in sequence along the curvature direction of the UHPC segment, the UHPC segment is provided with main reinforcement and stirrups, the main reinforcement is provided with a plurality of strips along the curvature direction of the UHPC segment, a plurality of stirrups are sequentially sleeved on the plurality of main reinforcement and are connected with the main reinforcement through binding, the concrete test blocks are provided with transverse steel bars and longitudinal steel bars, the transverse steel bars extend to the outside of the concrete test blocks and are overlapped with the stirrups, and the longitudinal steel bars extend to the outside of the concrete test blocks and are overlapped with the main reinforcement. Compared with the prior art, the structure design realizes optimal control of material cost by filling the concrete test blocks in the non-key stress area under the premise of hardly sacrificing the core performance of UHPC materials such as strength, durability and stress condition, and effectively eliminates the core economic obstacle in the popularization process of the UHPC shield segment.

The utility model relates to the technical field of wind power shafts, in particular to a wind power shaft die forging prefabricated blank tool. According to the technical scheme, the wind power shaft die forging prefabricated blank tool comprises a stamping part, a forging stock, a tool body and a base, the tool body is installed in the base, a forming cavity is formed in the tool body, the forging stock is placed in the forming cavity, the stamping part is erected above the tool body, a stamping head is arranged on the stamping part, and the stamping head is connected with the forging stock. The forging stock is machined into a pre-forged piece through extrusion of the stamping piece and the tool body, and a guide hole is stamped in the top end of the pre-forged piece through a stamping head. By means of in-mold prefabrication, pre-forging of shapes including the blind hole in the head and upsetting of the head during finish forging, forming can be achieved, the overall machining allowance is small, and the material utilization rate is high.

This invention discloses a mobile aluminum ladle baking device, relating to the field of metallurgical equipment technology. It includes a base frame, with a lifting unit and several support frames fixedly mounted on the upper end of the base frame. An installation unit is located on the front side of the lifting unit, and an igniter unit is fixedly connected to the bottom front side of the installation unit. A gas delivery unit is located on the upper part of the support frames, a gas control unit is located on the upper right side of the installation unit, and an air supply unit is located on the upper left side of the installation unit. This invention, through the base frame, electric forklift, traveling unit, and support units, achieves flexible movement, rapid positioning, and stable support of the device within the work area; the lifting unit enables precise lifting of the installation unit, igniter unit, gas control unit, and air supply unit; and the gas delivery unit, gas control unit, air supply unit, and igniter unit ensure safe gas delivery and precise gas-air mixing.

The vamp with the protective property and the air permeability comprises a vamp body, a plurality of TPU yarns are woven in an interweaving mode to form at least one TPU yarn arrangement layer, the TPU yarns are fixedly connected at the overlapping position in a hot melting press fit mode, and the TPU yarns are arranged on the vamp body. Breathable winding gaps are formed among the woven TPU yarns; a protective layer is compounded on the side, close to the foot, of the vamp body, the protective layer is formed by weaving materials with puncture resistance and cutting resistance, and the protective layer is provided with a breathable grid structure. According to the vamp with the protective property and the air permeability and the shoe, the vamp material with the protective property and the air permeability is adopted for the shoe, the effects of being simple in structure, good in air permeability and having the protective function are achieved, and safe, comfortable and healthy wearing experience is provided for a wearer.

The invention discloses a fire-proof and explosion-proof lithium battery device applied to fire fighting equipment, and relates to the technical field of lithium batteries, the fire-proof and explosion-proof lithium battery device comprises an explosion-proof shell and a mounting shell, and a lithium battery body is placed in the mounting shell. According to the device, the mounting shell for mounting the lithium battery body and the explosion-proof shell are indirectly connected through the two groups of first buffer mechanisms which are designed in a diagonal manner and do not directly contact with each other, and the first dampers and the first springs which are arranged in the diagonal direction can more uniformly disperse and absorb energy; meanwhile, the arrangement mode can provide a damping effect in multiple directions, vibration and impact from different angles are effectively resisted, the stability of the lithium battery body is improved, the design of the limiting mechanism further ensures that the lithium battery body cannot collide in the explosion-proof shell in the shaking process, and the service life of the lithium battery body is prolonged. The problem that the lithium battery is easy to damage when fire fighting equipment using the lithium battery shakes is effectively avoided, and the use effect of the fireproof and explosion-proof lithium battery is improved.

This utility model belongs to the field of drainage pipe technology, specifically relating to a PVC sewage drainage pipe with a noise reduction structure. It includes a floor slab layer, a shock-absorbing layer fixedly connected to the inner wall of the floor slab layer, a heat insulation layer fixedly connected to the inner wall of the shock-absorbing layer, reinforcing ribs fixedly connected to the inner wall of the heat insulation layer, a thermal insulation layer fixedly connected to the inner wall of the thermal insulation layer, an inner pipe fixedly connected to the inner wall of the thermal insulation layer, and multiple protruding rods fixedly connected to the inner wall of the inner pipe. A protective device for the drainage pipe is provided on the top of the floor slab layer. The protective device includes two protective plates, the bottoms of which are both located on the top of the floor slab layer. This utility model solves the problem that the noise reduction design of the device sacrifices the overall rigidity of the pipe material. While a softer material layer can effectively absorb sound energy, it has weak resistance to instantaneous external forces, making it prone to dents, cracks, or even breakage. This invention enhances rigidity and improves resistance.

The utility model relates to a float type grass tortoise culture water quality monitoring device, which belongs to the technical field of water quality monitoring, and comprises two floating frame bodies, two air floating bags and a water quality monitoring device body, the air floating bags are fixedly arranged on one side of the floating frame bodies, and the two air floating bags are distributed in a mirror symmetry manner; two connecting supporting rods in mirror symmetry are fixedly connected to the sides, away from the air floating bag, of the floating frame bodies, reinforcing floating balls are fixedly connected to the ends, away from the floating frame bodies, of the connecting supporting rods, and an adjustable mechanism is installed between the opposite sides of the two floating frame bodies. The buoy type grass tortoise culture water quality monitoring equipment can provide a function of increasing the overall bearing capacity and balance, can effectively resist the impact force of water flow, also provides a size adjustment function, can be adapted according to water quality monitoring equipment bodies of different sizes, further improves the stability, and is suitable for popularization and application. Therefore, the representativeness and reliability of the monitoring data are ensured.

This application relates to the field of construction machinery, and discloses a fuel tank mounting structure for construction machinery and the construction machinery itself. The fuel tank mounting structure includes: a frame comprising multiple side plates and multiple support plates, the side plates being sequentially connected to enclose a fuel tank mounting area, and the support plates being sequentially and spaced along the circumference of the fuel tank mounting area on the inner side walls of the side plates; a fuel tank disposed in the fuel tank mounting area and comprising a fuel tank body and multiple tank support plates, the support plates being spaced along the outer circumferential wall of the fuel tank body, and the fuel tank body resting on the support plates via the support plates; and a fastening assembly for locking the support plates to their corresponding support plates. The fuel tank mounting structure and construction machinery of this application can reduce the difficulty of fuel tank installation and improve fuel tank stability.

A device for evaluating the saline-light boundary effect of a tide gate in situ comprises a water tank, a measuring mechanism and a fixing mechanism, the water tank is used for collecting water, the measuring mechanism measures the conductivity of water in the water tank and transmits measured data to a tide gate monitoring system, and the fixing mechanism fixes the whole device on the shore.

The utility model relates to the technical field of water-stop sheets, in particular to a water-stop sheet applied to hydraulic engineering design, which comprises a partition plate, an anti-tilting assembly is arranged on the back of the partition plate, the anti-tilting assembly comprises a rotating groove, the rotating groove is arranged on the back of the partition plate, a first rotating shaft is rotatably connected in the rotating groove, and a second rotating shaft is arranged in the rotating groove. The side surface of the first rotating shaft is fixedly connected with a connecting block, one side of the connecting block is fixedly connected with a first telescopic plate, one side of the first telescopic plate is movably connected with a second telescopic plate, and the bottom of the second telescopic plate is fixedly connected with a bottom plate. According to the water-stop sheet applied to the hydraulic engineering design, through cooperation of a first rotating shaft, a first telescopic rod and anti-skid thorns, the anti-push-over design is added on the back of the water-stop sheet, so that the water-stop sheet can be more stably installed at a designated position, the impact force of water flow is resisted, it is ensured that the water-stop sheet cannot move or collapse when being impacted, and the service life of the water-stop sheet is prolonged. Therefore, the overall safety is improved, and the damage frequency is reduced.

The utility model relates to the technical field of tank car filling metering, in particular to a low-temperature liquid tank car filling metering device. According to the technical scheme, the filling metering device for the low-temperature liquid tank car comprises a plug, an inner fixing plate, a tank and an outer fixing plate, a window is formed in one end of the tank, the outer fixing plate is installed in the window of the tank, the inner fixing plate is installed at the position, corresponding to the outer fixing plate, of the interior of the tank, and the plug is connected with the inner fixing plate. The inner fixing plate and the outer fixing plate are locked and fixed through bolts, a tuning fork type liquid level meter is installed on the outer fixing plate, a measuring head is arranged at the end, located in the tank, of the tuning fork type liquid level meter, and a controller is arranged at the end, located on the outer side of the tank, of the tuning fork type liquid level meter. The problem that the filling weight is overloaded due to the fact that the mechanical liquid level meter is jammed and frozen to death can be effectively solved, and the safety and the accuracy of the filling process are guaranteed.

The utility model relates to the technical field of electric engineering cable protection, in particular to a cable supporting and protecting device which comprises a fixing support, a connecting assembly connected to the fixing support and a cable protecting assembly movably connected with the connecting assembly, and the cable protecting assembly comprises an upper protecting plate, a lower protecting plate and an adjusting bolt. One side of the upper protection plate and one side of the lower protection plate are provided with a plurality of cable introduction ports at equal intervals, and an internal supporting structure is arranged in the cable introduction port located in one side of the upper protection plate. Locking grooves are formed in the two ends, close to the edges, of the upper protection plate and the lower protection plate, the adjusting bolts are installed in the locking grooves, the bottom ends of the adjusting bolts are fixedly connected to the lower protection plate, and the top ends of the adjusting bolts penetrate through the locking grooves in the upper protection plate and extend outwards; the adjusting bolt is in threaded connection with a locking screw; according to the device, through the combination of the fixing support, the connecting assembly, the cable protection assembly and the internal supporting structure, the cable is effectively protected against physical damage and environmental erosion, and meanwhile installation and maintenance of the cable are facilitated.

The invention relates to the technical field of driving motors, and discloses a driving motor device for an electric vehicle, the driving motor device comprises a casing, a motor body and a wiring port, the motor body is installed in the casing, the wiring port is installed outside the casing, the casing comprises a shell, a front end cover and a rear end cover, the shell sleeves the motor body, and through the design of a reinforcing layer and a pressure reduction assembly, the motor body is fixed to the front end cover and the rear end cover. When the driving motor device is subjected to external pressure, the pressure between the casing and the motor body is dispersed, so that the overall anti-pressure capability is remarkably improved, the casing can be effectively prevented from being deformed in long-time use, the service life of parts is prolonged, and the service life of the parts is prolonged. And meanwhile, impact and vibration from the road surface can be effectively absorbed and relieved through telescopic and compression actions of a pressure reducing rod and a pressure reducing spring in the pressure reducing assembly, the buffering performance is further enhanced through the design of a supporting rod and a supporting spring, and therefore more stable driving experience is provided, and the influence of noise and vibration on passengers is reduced.