57results about How to "Reduce inconvenience" patented technology

The application discloses a self-balancing offshore operation platform safety ladder and a use method thereof, which comprises a sliding seat arranged in a horizontal sliding mode, a connecting frame hinged to one end of the sliding seat, a footboard horizontally and rotationally connected to the connecting frame, and a counterweight hung at the bottom of the footboard, wherein a hoisting frame is installed at the top of the sliding seat, the top end of the hoisting frame is connected with the movable end of the connecting frame through a lifting rope, and a horizontal shaking buffer assembly is arranged between the connecting frame and the footboard. The self-balancing mechanism and the buffer assembly significantly improve the stability of the safety ladder under complex sea conditions, the real-time response and anti-skid design ensure the safety of personnel getting on and off the platform, and the quick installation and modular design facilitate daily use and maintenance.

According to an aerosol-generating device according to an embodiment, in a case where a flange temperature sensed by a flange temperature sensor is included in a preset reference temperature range, a switching frequency of a power conversion unit is swept in a reference frequency range and at least one DC current value is acquired from a current sensing sensor; and generates temperature data for estimating the temperature of the susceptor on the basis of the DC current value.

This utility model relates to the field of fire-receiving basin technology, specifically an easily fixed welding fire-receiving basin, including a safety basin. The upper surface of the safety basin has an internal groove, and the outer surface of the safety basin is provided with a fixing device. The fixing device includes a guide sleeve, which is fixedly connected to both sides of the safety basin. A slider is slidably connected inside the guide sleeve, and a rotating bar is rotatably connected to the rotating shaft of the slider. One end of the rotating bar is threadedly connected to a threaded rod. An insert rod is slidably connected inside the slider and inserts into the interior of the safety basin. A return spring is fixedly connected between the insert rod and the slider, and the return spring is located inside the slider. A storage component is provided on one side of the guide sleeve. This utility model, by providing a fixing device, effectively facilitates workers in fixing the fire-receiving basin, avoiding time-consuming situations and reducing inconvenience during the fixing process.

The utility model relates to a driving side rotary joint assembly, and belongs to the technical field of rotary joints, the driving side rotary joint assembly comprises a rotary joint main body, the left and right ends of the rotary joint main body are respectively provided with a first connecting pipeline and a second connecting pipeline; the output end and the input end of the rotary joint main body are provided with mounting structures for mounting the first connecting pipeline and the second connecting pipeline with the mounting structures; the installation structure comprises two fixing rings, two sets of fixing blocks, two lantern rings and two inserting rods fixedly installed on the opposite walls of the left lantern ring and the right lantern ring. According to the driving side rotating joint assembly, the mounting structure is arranged, so that the first connecting pipeline or the second connecting pipeline can be mounted on the rotating joint without using an external tool, and the inconvenience during mounting of the rotating joint can be effectively reduced; and when the first connecting pipeline or the second connecting pipeline is detached from the input end or the output end of the rotary joint, the phenomenon that parts are lost during detachment can be effectively reduced, and subsequent installation is prevented from being affected.

The application discloses a wheeled exoskeleton rehabilitation supporting device, which comprises a movable frame structure, a seat cushion arranged on the movable frame structure and used for supporting the hips of a patient, a leg supporting mechanism arranged on the front side of the movable frame structure and used for supporting the legs of the patient, and a gait simulation mechanism arranged on the front and back sides of the movable frame structure and used for simulating the gait of human walking. The leg supporting mechanism arranged on the front side of the movable frame structure cooperates with the gait simulation mechanism arranged on the front and back sides of the movable frame structure, and the powered conditions of the two mechanisms are adjusted to realize the active and passive rehabilitation training of the legs of the patient. In the case that the patient is limited in daily movement or the stability of the legs is poor, the device can be used as a walking wheel, so that the rehabilitation training of the legs is realized, and the inconvenience of the patient in daily life is reduced.

This utility model belongs to the field of disposable glove technology, and particularly relates to a disposable PE antibacterial glove, comprising a glove body and a wrist portion located at the open end of the glove body; the outer surface of the glove body is provided with a metallic tin fish scale embossed layer; the scale units of the metallic tin fish scale embossed layer are arranged in a hexagonal pattern, the thickness of the scale unit is 1.5~2.5mm, and the spacing between adjacent scale units is 0.1~0.2mm; the glove design enhances grip performance, and through the metallic tin fish scale embossed layer and specific arrangement, increases friction, reduces the risk of items falling, and improves operational stability; improves safety during use, solves the slippage problem, and reduces the risk of contamination and injury, making it particularly suitable for the medical and food industries; improves work efficiency, avoids repeated picking up of dropped items, and makes operation smoother; improves the user experience, reduces the inconvenience of glove slippage, and makes operation easier and more convenient; expands application areas, solves the slippage problem, and makes disposable PE antibacterial gloves suitable for more fields requiring anti-slip properties.

This invention provides a straightening device and method for heat-treated pipe fittings of unequal diameters, belonging to the field of pipe fitting processing technology. The straightening device includes a support base, which includes a feeding support assembly, a coarse shaft support, a fine shaft support, and a discharging support assembly; a feeding mechanism, which includes a feeding plate, a feeding spring plate, an upper rod rail one, and an upper rod rail two; a discharging mechanism, which includes a discharging plate, a discharging spring plate, a lower rod rail one, and a lower rod rail two; and a hydraulic pressure head, which is disposed above the support base. This invention adopts a continuous feeding and discharging method. The feeding mechanism adjusts the tilt direction of the feeding plate by rotating a motor, guiding the heat-treated pipe fittings of unequal diameters to the straightening position; the discharging mechanism, through the extension and retraction of the discharging cylinder, lifts the heat-treated pipe fittings of unequal diameters by the discharging plate and guides them out of the straightening position along the discharging plate, eliminating the inconvenience of back-and-forth lifting and saving time.

This utility model belongs to the technical field of auxiliary equipment for monocrystalline silicon production, and provides a master alloy crushing and collection device, including: a crusher for crushing master alloys; and a collection box for storing the crushed master alloys. The crusher has a platform with a crushing hopper in the middle and a tungsten-cobalt hammer located directly above the crushing hopper. The tungsten-cobalt hammer can be raised and lowered by a first foot switch to fall into the crushing hopper and crush the master alloy placed there. This utility model uses a foot pedal to control the tungsten-cobalt hammer to rise and fall into the crushing hopper, which can crush the master alloy placed in the crushing hopper to a suitable size. The entire crushing process involves the master alloy being unpackaged and not in direct contact with the hands, effectively avoiding non-silicon contamination. At the same time, the foot-operated crushing method reduces the fatigue and inconvenience of handling the material.

The present invention relates to a dental drain tube, and more particularly, to a dental drain tube for oral use, and more particularly, to a dental drain tube for oral use, which can prevent blood accumulation of abscesses and infections in infected sites where abscesses such as abscesses and cellulitis are formed in dentistry, oral maxillofacial surgery or the like, and sites where swelling is expected to be severe after surgery. The present invention provides a drain tube for discharging to the outside, and discharges abscess, tissue or the drain tube from the most inconvenient position of post-operation discharge. The present invention relates to a dental oral drain tube capable of shortening the recovery time, for which the present invention extends in the longitudinal direction, has a radiation-impermeable line on either the outer surface or the inner surface, is inserted into a desired site of postoperative pain and swelling, fevers at a surgical site, and discharges to the outside. A channel extending along the length direction and providing channels for movement of pus, interstitial fluid or blood to prevent accumulation of interstitial fluid or blood; a drainage hole formed along the longitudinal direction of the main body and through which pus, interstitial fluid, or blood outside the main body flows into the channel; forming a plurality of groove lines on the outer surface of the main body to limit the moving direction of the main body; the method is characterized by including.

The valve comprises an outer sleeve, a flow control mechanism is arranged in the outer sleeve, the flow control mechanism comprises an adjusting sleeve, a linkage sleeve, a center rod, a supporting frame, a transmission sleeve, a push sleeve and a spiral plate, the adjusting sleeve is rotationally installed at the top end of the outer sleeve, the linkage sleeve is fixed to the inner side of the adjusting sleeve, and the center rod is fixed to the center rod. The center rod is fixed to the inner side of the linkage sleeve, the flow control mechanism achieves accurate adjustment of the water flow speed through a series of precise structural design, the adjusting sleeve rotates to drive the linkage sleeve to rotate so as to drive the center rod to rotate, the center rod pushes the transmission sleeve to slide along the center rod, and the spiral plate is pushed through the push sleeve. The flow space of water flow is adjusted through the change of gaps of the spiral plates, and the structure has the advantages that the water flow speed can be flexibly adjusted according to different requirements, the utilization efficiency of water resources is improved, excessive or insufficient irrigation is avoided, it is ensured that crops obtain balanced water supply, and therefore the agricultural irrigation effect and productivity are improved.

The utility model discloses a glasses structure easy to disassemble, which comprises a glasses frame main body, an inner side lens embedded in the glasses frame main body and an outer layer lens arranged on the outer wall of one side of the glasses frame main body, and a magnetic attraction structure is arranged between the bottom end of the outer layer lens and the lower end of a nose support part of the glasses frame main body. A snap spring type positioning structure for limiting the outer-layer lens is mounted on the outer wall of the upper end of the glasses frame main body, and an elastic band is mounted on the outer wall of one side, far away from the outer-layer lens, of the glasses frame main body. According to the utility model, the inner side lenses are fixed inside the glasses frame main body and are unlikely to be directly influenced by the external environment, so that a user does not need to frequently clean or worry about being polluted by snow, dust or grease and is always in a clean and clear state, and the sight safety in a complex environment is ensured; and the outer-layer lens adopts a magnetic attraction structure or a snap spring type positioning structure, so that a user can conveniently and quickly dismount and mount the lens.

The utility model relates to the technical field of hygienic products, in particular to a pair of wearable menstrual period trousers, which comprises disposable underpants and a receiving container arranged at the crotch of the underpants and used for receiving menstrual blood, an absorption core is arranged at the bottom of the receiving container, and the upper edge of the receiving container is in contact with the vulva of a user. And the vulva does not contact with the absorbing core body at the bottom of the receiving container after wearing. When the sanitary towel is used, the skin of the vulva is not directly contacted with the absorption core body which absorbs menstrual blood at the bottom, so that the sanitary towel is higher in use comfort, is more dry and comfortable, does not need to be frequently replaced like a sanitary towel, and is longer in use time; in addition, compared with existing sanitary napkins and sleeping pants, the sleeping pants are lighter, thinner and smoother, and the problems that due to the fact that the existing sanitary napkins are completely attached to the skin of the private parts, the skin is stuffy and moist, and menstrual blood adheres to the skin are solved.

The utility model discloses filter element assembling equipment for an air filter, which belongs to the technical field of air filter production and comprises an assembling table, a pressing plate component is fixedly mounted above the assembling table, a fixed frame is arranged above the assembling table and positioned on one side of the pressing plate component, a conveying table is arranged on one side of the assembling table, and a filter element is arranged on the conveying table. A cleaning moving device is arranged close to the center of the assembling table; through the arrangement of the cleaning moving device, a worker can clean impurities possibly existing in the fixed frame through the cooperation of the fan, the filter cloth and other structures when needed, so that the normal operation of the assembly work is ensured; and a worker can move the equipment through the brake wheels when needed, in addition, the equipment can buffer external vibration through cooperation of an elastic rubber barrel and a damper, and therefore the possibility that assembling work is affected by the external vibration is reduced, and the working capacity of the equipment is improved.

The utility model relates to a spot lamp in a double-light-emitting mode. The spot lamp comprises a mounting base, a first light-emitting assembly and a second light-emitting assembly, wherein the first light-emitting assembly and the second light-emitting assembly are both arranged on the mounting base. The second light-emitting assembly is annular and sleeves the outer side of the first light-emitting assembly; a light reflecting plate is arranged between the first light-emitting assembly and the second light-emitting assembly. The end, away from the mounting base, of the light reflecting plate inclines towards the second light-emitting assembly. When the mounting base is mounted in place, the inclined surface of the light reflecting plate reflects light emitted by the second light emitting assembly to the periphery of the mounting base; the spotlight provided by the utility model can simultaneously give consideration to key lighting and the brightness of the surrounding environment, and has better practicability.

This utility model discloses a toothbrush cup holder that can be used for both top suction and wall mounting. It includes a cup holder, a cup body detachably connected to the bottom of the cup holder and installed with the opening facing downwards, a flip-top hinged to one side of the cup holder via a pivot, and a toothbrush holder detachably connected to the other side. The flip-top has an adhesive backing layer on its top. The cup holder has a limiting buckle, an installation notch, and a first limiting groove. The flip-top has a first fastening part and a second fastening part, which, in conjunction with the cup holder, achieve both top suction and wall mounting positioning. Furthermore, the cup holder and the cup body are magnetically connected. The structure of both the cup holder and the toothbrush holder has been optimized accordingly, resulting in a toothbrush cup holder that is flexible to install, structurally stable, and easy to use.

The utility model discloses a kind of efficient brushless hollow cup DC motor stator, including the stator core made of high saturation soft magnetic material, the middle part of the stator core is equipped with core inner hole, the inside of the core inner hole is equipped with cup type winding, and the inside of the core inner hole is attached with insulating film, the cup type winding is by several sheet hexagonal winding column and is rolled by coiling machine, the cup type winding is fixed on the inner wall of core inner hole by high temperature epoxy adhesive layer;The utility model not only guarantees the electrical insulation between stator core and winding cup, but also reduces the inconvenience caused by artificial paste insulating film, improves the quality reliability of stator, shortens manufacturing cycle, improves work efficiency;Relative to filling process, manufacturing cycle is shortened by 2 / 3.

The application discloses a kind of test devices for optical network equipment, including box, tester, the upper end of the tester is equipped with switch, the tester is installed in box, the inside of the box is equipped with shock-absorbing component supporting tester, the upper end of the tester is equipped with first rectangular groove, the second rectangular groove is equipped in the bottom of first rectangular groove, the fixed frame is rotatably connected in first rectangular groove by pivot, the other end of the fixed frame is equipped with handle, the display screen is installed in the side of fixed frame, the other side of fixed frame is supported by support component, the upper end of the box is hinged to box cover by hinge, the inside of the box cover is embedded first rubber pad, the side of the box is equipped with air outlet. The application realizes portable movement, effectively dustproof and shock protection, significantly improves the use convenience, maintenance cleanliness and equipment durability.

This disclosure relates to the field of coal mining technology. One embodiment of this disclosure provides a coal mine goaf fireproof grouting conveying device, including a base plate. A mixing and stirring assembly is fixedly installed on the top of the base plate, and fixing blocks are fixedly installed on both sides of the bottom of the base plate. In the fixing process, a stable anchoring mechanism is formed through a multi-stage transmission structure from the second adjusting block to the fixing protrusion. The horizontality of the connecting sleeve can be precisely adjusted according to different geological conditions to ensure that the fixing protrusion is firmly drilled into the ground, providing reliable support for the base plate and the mixing and stirring assembly, and effectively resisting the pressure and vibration generated by the grouting operation. In terms of position adjustment, the fixing protrusion is first lifted off the ground, and then the second adjusting block is rotated in the opposite direction to restore the component to its original position. Flexible movement is achieved with the help of external force and the support of the moving assembly. The grouting position can be adjusted according to the actual situation of the goaf. Through the above technical solution, the technical problem of a coal mine goaf fireproof grouting conveying device in the prior art is solved.

The utility model provides an oil cylinder of a chain stretching machine. The oil cylinder comprises an oil cylinder front cover, an oil cylinder rear cover, a cylinder barrel, a bolt and a piston rod. The oil cylinder front cover, the cylinder barrel and the oil cylinder rear cover are connected into a whole through bolts, the piston rod is arranged in the cylinder barrel, and the two ends of the piston rod extend out of the oil cylinder front cover and the oil cylinder rear cover respectively. The piston rod is of a hollow structure so that the chain can penetrate through the center of the piston rod. The utility model relates to the field of chain stretching. The chain stretching device is simple in structure, high in rigidity, capable of reducing energy consumption, stable in chain size and capable of improving efficiency, reducing cost and reducing labor force.

The utility model provides a multi-sequin laminating and feeding device which comprises an end seat, a sequin feeding bottom plate and a slicing mechanism, at least two groups of sequin feeding mechanisms which are sequentially laminated from top to bottom are arranged on the sequin feeding bottom plate, each group of sequin feeding mechanism is provided with a sequin shifting assembly, and the multi-sequin laminating and feeding device further comprises at least one group of double-motor groups which can respectively drive the two groups of sequin feeding mechanisms, the double-motor set comprises a first motor and a second motor which are axially stacked, the first motor is provided with a hollow driving shaft, and the second motor is provided with a second motor driving shaft which penetrates through a through hole formed in a first motor body and penetrates through the hollow driving shaft to extend outwards and protrude out of the hollow driving shaft. The hollow driving shaft and the second motor driving shaft respectively drive the plectrum components arranged on the two groups of plectrum feeding mechanisms, and the hollow driving shaft and the second motor driving shaft are directly or indirectly connected with the corresponding plectrum components. The motor is small in occupied space and convenient to install and overall layout.

This utility model belongs to the field of marine fish processing equipment, specifically a multi-angle spraying device for marine fish processing, including a cleaning channel and a conveyor mesh frame. The conveyor mesh frame works in conjunction with the cleaning channel. A spraying mechanism is set inside the cleaning channel. The spraying mechanism includes several movable slots, which are respectively opened on both sides inside the cleaning channel. Several sets of first movable frames and several sets of second movable frames are slidably connected inside the movable slots. When marine fish enter the cleaning channel through the conveyor mesh frame, the marine fish drive the first movable frames to move upward through the support components, and at the same time, the second movable frames move downward. Through the cooperation of the first gear and the first toothed plate, the water pipe rotates, thereby achieving the function of automatically adjusting the nozzle angle to adapt to marine fish of different sizes, thus eliminating the inconvenience caused by frequent adjustment of the nozzle angle and ensuring the efficiency of marine fish spraying.

The invention relates to a rail station shared bicycle classification scheduling method based on parking position perception, and the method comprises the steps: monitoring a shared bicycle parking region around a rail station, and obtaining the number, states and operator types of shared bicycles around the rail station in real time through a pre-trained parking position perception model; determining a corresponding operation strategy according to the number and the state of the shared bicycles and the types of operators to which the shared bicycles belong and in combination with the station types of the rail stations; according to the operation strategy, scheduling demands of shared bicycles around the rail station are predicted in real time, and scheduling suggestions are generated; and according to the generated scheduling suggestion, carrying out classified scheduling on the shared bicycles around the rail station. According to the method, efficient classified management and balanced distribution of the shared bicycles are realized through accurate perception and intelligent scheduling, the resource utilization efficiency and the user experience are remarkably improved, the operation cost is reduced, and the urban traffic resource allocation is optimized.

This utility model discloses a rice feeding pretreatment device, belonging to the field of rice processing technology. It includes a pretreatment box assembly, with a filter assembly installed at the top. A first fan is fixedly installed on one side of the pretreatment box assembly below the filter assembly, and a fan mesh bag assembly is fixedly installed on the side of the pretreatment box assembly away from the first fan and below the filter assembly. A storage and drying device is fixedly installed above the pretreatment box assembly. This utility model, by setting up a storage and drying device, allows workers to temporarily store rice using a storage cylinder and L-shaped plate when not in use, reducing potential inconvenience. Furthermore, when needed, workers can use a fan and heating rod to dry and dehumidify the rice, thereby improving the device's working capacity.

The utility model discloses a U-shaped multi-stage grounding ESD (Electro-Static Discharge) anti-static wrist strap connector, which comprises an ESD equipment host (1), the ESD equipment host (1) is provided with at least one plug-in ESD wrist strap connecting wire (7), and the ESD wrist strap connecting wire (7) is provided with a U-shaped connector (2); the ESD equipment host (1) is provided with a U-shaped notch (3), and the U-shaped connector is arranged in the U-shaped notch (3). The connector provided by the utility model adopts an embedded design, and the U-shaped connector is embedded into the U-shaped notch of the ESD equipment host, so that not only is the aesthetic property of the equipment improved, but also the grounding reliability and the use safety are remarkably improved through a multi-stage grounding design and an anti-falling structure.

The female metal catheter comprises a catheter body, a catheterization cavity and an air injection cavity are formed in the catheter body, a catheterization hole is formed in one end of the catheter body, a catheterization connecting pipe is arranged on the outer side of the other end of the catheter body, and the catheterization cavity, the catheterization hole and the catheterization connecting pipe are communicated; a ventilation window is formed in the position, close to the catheterization hole, of the outer side of the catheter body, an annular air bag is arranged at the position, corresponding to the ventilation window, of the outer side of the catheter body, and a connecting cavity is formed in the other end of the catheter body. The female metal catheter provided by the invention is made of a metal material, is high in strength and good in durability, is not easy to age and deform, can be stably used for a long time, and reduces the pain and inconvenience caused by frequent replacement of the catheter to a patient; a perfect urethral catheterization and air injection channel is provided, urethral catheterization is smooth, through the arrangement of the one-way valve, air backflow is prevented, stable expansion of the annular air bag is ensured, and the fixing effect is enhanced.

The application discloses a thunderstorm early warning-based equipment anti-power-off protection method, relates to the technical field of natural disaster protection, and solves the problem that the existing thunderstorm early warning method can only control whether household appliances are powered off according to thunderstorm early warning, and cannot power off the household appliances according to actual environment conditions, thereby bringing inconvenience to the life of users; the method comprises the following steps: generating a dangerous coefficient one and a dangerous coefficient two according to house information, and generating a dangerous coefficient three according to thunderstorm early warning information; generating a dangerous index according to the dangerous coefficient one, the dangerous coefficient two and the dangerous coefficient three; and generating a power-off instruction according to the dangerous index and appliance information; the method considers the house information of a target house and the thunderstorm early warning information in the dangerous index of the target house suffering from lightning in thunderstorm weather, judges whether to perform a power-off operation on corresponding household appliances, and makes it possible to close as few household appliances as possible while protecting the safety of owners, thereby bringing convenience to the life of the owners.

This utility model discloses a depth-adjustable groundwater sampling device for groundwater quality testing, belonging to the field of groundwater testing technology. It includes a U-shaped frame with a sleeve assembly on the inner side. A motor assembly is installed at the upper part of the U-shaped frame, above the sleeve assembly. This utility model incorporates a movable thawing device, allowing workers to move the device as needed using wheels, thus reducing the difficulty of moving the device and lessening the workload. Furthermore, when ground conditions permit, workers can fix the device in place using an electric lifting rod and a cone-shaped structure, reducing the possibility of the device deviating from its original position due to external collisions. Additionally, workers can use a fan and an electric heating rod to thaw the surface layer of frozen groundwater in winter, thereby improving the device's working capacity.

The utility model discloses a kind of cleaning equipment, including dust collector, dust collector includes handheld component, connecting rod and at least two cleaner heads, one end of connecting rod is matched with dust collector, another end is optionally matched with one of cleaner head, cleaning equipment further includes: tray, tray includes continuous head, bottom disc and the support rod for connecting continuous head, bottom disc, continuous head is configured to be matched with handheld component, bottom disc is configured to support dust collector;Fixing frame, cleaner head is detachably arranged on fixing frame, locking mechanism, fixing frame and support rod are detachably fixed by locking mechanism, and notch groove is formed on fixing frame, the direction of notch groove is set to support rod, when fixing frame and support rod are fixed, support rod is at least partially contained in notch groove.The utility model innovatively sets fixing frame and integrated base station as detachable, while taking into account the use habit of different users, and the scope of application is wide.

The utility model discloses a silver-copper material hot melting device which comprises a main body, a forceps holder placing bin installed on the main body, an isolation bin installed behind the forceps holder placing bin, a power conversion device installed behind the isolation bin, an isolation cover installed above the main body, a containing device installed below the isolation cover and a heating device installed below the containing device. A connecting device is installed at the rear end of the heating device. According to the silver-copper material hot melting device, the isolation cover observation opening is made of a heat-resistant transparent plate, heat insulation is achieved, and observation is convenient. The crucible and the fixing device are made of high-temperature-resistant materials, and the lower parts cooperatively control heat to avoid machine damage. The main body and the isolation bin are installed to prevent mistaken touch of the heating device to guarantee safety. The heating wire is made of nickel-chromium alloy, heating is facilitated, the service life is prolonged, and breakage is not prone to occurring. The connecting device facilitates rapid replacement of the heating wire.

The invention discloses an adjustable bus duct, and relates to the technical field of bus ducts, and the adjustable bus duct comprises a first shell, one end of the first shell is fixedly connected with a connecting block, the other end of the connecting block is fixedly connected with a second shell, and the interior of the first shell and the interior of the second shell are each fixedly connected with a set of buffer mechanisms which are symmetrical front and back. The opposite sides of the buffer mechanism are fixedly connected with inserting pieces, and one end of each inserting piece extends to the outer portion of the first shell and the outer portion of the second shell. A motor is controlled to rotate, when the motor rotates, a threaded rod is driven to rotate, at the moment, the threaded rod drives a mounting pipe to move upwards, at the moment, the mounting pipe synchronously drives an anti-skid plate to move upwards through a first connecting rod, and at the moment, the top end of the anti-skid plate slides in a sliding groove; and the anti-skid plates are driven to be unfolded outwards through the angle effect of the first connecting rods, so that the anti-skid plates are tightly attached to the connecting cylinders, and at the moment, the bottom ends of the mounting pipes are tightly attached to the bottom ends of the fixing plates.