52results about How to "Improve warning effect" patented technology

The utility model relates to the technical field of luggage cases, in particular to a car roof luggage case with a brake reminding function. The car roof trunk with the brake reminding function comprises a trunk body, at least two brake lamp sets are arranged at the tail of the trunk body, a car speed detection piece is arranged on the front portion of the trunk body, the car speed detection piece is electrically connected with the at least two brake lamp sets, and the car speed detection piece is used for monitoring the running speed of a car. And one brake lamp group is controlled to be turned on or at least two brake lamp groups are controlled to be turned on and flicker. By adopting the brake lamp system, different brake alarm lamp prompts can be provided for the rear vehicle, the warning effect of the brake lamp system on the rear vehicle is effectively improved, and the driving safety is further ensured.

The invention relates to the technical field of vehicle safety, and provides a sentry warning system and method and a vehicle, and the system comprises an environment monitoring module which is used for collecting multi-source environment data in a preset range around the vehicle in real time when the vehicle is in a sentry mode, the multi-source environment data comprises target distance data, target residence time data, target behavior identification data, audio abnormal data and scene label data; the main control module is in communication connection with the environment monitoring module and is used for receiving the multi-source environment data, performing threat judgment to obtain a current threat level and generating a suspension adjusting instruction corresponding to the threat level; and the suspension adjusting module is in communication connection with the main control module and is used for responding to the suspension adjusting instruction and driving a suspension system of the vehicle to perform height adjustment, so that a vehicle body is dynamically changed, and visual warning is formed for a threat target. According to the system, the method and the vehicle, active physical warning is achieved through an existing suspension system of the vehicle.

The application discloses a solar cell panel support shaking early warning device, and relates to the technical field of solar panel supports, which comprises a base, a supporting cylinder fixedly connected to the upper surface of the base, a motor fixedly connected between the inner walls of the base, a storage rack slidingly connected between the inner walls of the supporting cylinder, a screw rod rotatably connected to the bottom of the inner walls of the supporting cylinder, the output end of the motor being fixedly connected to the bottom end of the screw rod, the screw rod being threadedly connected with the bottom end of the storage rack, and U-shaped pressing rods being slidingly connected to the outer surface of the supporting cylinder at equal intervals. The device can reduce the overall height of the device by sliding the storage rack into the supporting cylinder, thereby reducing the overall gravity center of the device, making the device easier to keep balanced, and reducing the area of the device subjected to wind, the force arm of the device, the torque of the wind force acting on the device, and the influence of the wind force on the device, so that the shaking amplitude of the device is reduced.

The utility model discloses a kind of sealed channel trolley with flasher, including base, circuit control box, second LED lamp tube and LED lamp panel, the bottom end left and right ends of the base are uniformly connected with push-pull rod, the rotating structure is connected with first LED lamp tube by connecting structure, the second LED lamp tube is connected with circuit control box and push-pull rod by connecting structure, the LED lamp panel is installed in circuit control box top end by connecting structure, the motor output end is fixedly connected with main gear, the main gear is engaged with connection and has auxiliary gear, the auxiliary gear is fixedly connected with first rotating shaft in, the first rotating shaft outside is fixedly installed with first bevel gear. The sealed channel trolley with flasher, by rotating structure makes first LED lamp tube rotate, to improve warning effect, by connecting structure, so that first, second LED lamp tube and LED lamp panel are convenient to disassemble and assemble, by the push-pull rod of the bottom end left and right ends of the base and being uniformly fixed installation, so that the sealed channel trolley is convenient to move.

The utility model relates to the technical field of cable supports, in particular to a cable support with a looseness warning function, which comprises a warning box fixedly mounted on the lower surface of a supporting rod, a mounting plate fixedly mounted on the inner side of the warning box, and a warning assembly fixedly mounted on the side wall of the mounting plate. A lever body is fixedly installed on the lower surface of the shaft sleeve, a limiting groove is formed in one end of the lever body, an iron ball is arranged on the inner surface of the limiting groove, a storage battery is fixedly installed on the side surface of the installation plate, a microswitch is arranged on the side surface of the storage battery, and a connecting wire is arranged on the upper surface of the storage battery. The support has the advantages that a good warning effect is achieved, compared with the mode that an elastic ball makes a sound on an arc-shaped metal sheet, good continuity is achieved, a worker can be reminded to fix the support in time when the support body inclines, and potential safety hazards are avoided.

The application discloses a bridge culvert vehicle height limiting device and belongs to the technical field of vehicle height limiting, which comprises a U-shaped frame, a height limiting rod arranged outside the U-shaped frame, a square groove formed in the outer surface of the U-shaped frame and a piston cavity arranged inside the U-shaped frame, and the inner bottom wall of the square groove is rotationally connected with the outer surface of a reciprocating screw rod, and the outer surface of the reciprocating screw rod is threadedly connected with a nut. In the application, the nut is driven by a motor to reciprocatingly move up and down on the inner wall of the square groove, water in a water source below the bridge culvert or a water tank outside is sprayed to the outside through a spray head, the road surface above the bridge or the tires of passing vehicles are washed, the generation of dust is slowed down, the warning of the device is favorable for the subsequent passing vehicles, the warning effect of the device is improved, the front surface of the nut is in contact with the outer surface of a hexagonal reflective column during the movement of the nut in the square groove, the hexagonal reflective column is driven to rotate, the rotating hexagonal reflective column can attract more attention, and the warning effect of the width of the bridge culvert is improved.

The utility model provides a reflective film capable of being embossed to form an edge. The reflective film comprises a film body, the film body is provided with a reflective surface layer, a waterproof layer, a polystyrene foam layer and a bottom glue layer which are laminated from top to bottom; the thickness of the polystyrene foam layer is greater than that of the waterproof layer, and the thickness of the polystyrene foam layer is greater than that of the bottom glue layer; the polystyrene foam layer is configured to be capable of correspondingly forming a whole circle of edge finding structure on the peripheral side of the film body in an overflow form after the reflective film is embossed and formed; the polystyrene foam layer is arranged in the film body, the thickness of the polystyrene foam layer is larger than the thickness of the waterproof layer and the thickness of the bottom glue layer, a continuous and uniform edge finding structure can be formed on the periphery of the reflective film at a time according to the principle that polystyrene foam overflows during imprinting forming, and continuous annular protrusions are formed on the periphery of the edge finding structure, so that the reflective area is enlarged, and the reflective effect is improved. Light rays can be reflected more effectively from the side direction and different angles, and the warning effect is remarkably improved.

This utility model discloses a warning device for tunnel construction, relating to the field of construction safety warning technology. It includes a base housing and a warning light. An L-shaped bracket is welded to the top of the base housing. The end of the connecting rod away from the L-shaped bracket is rotatably connected to the warning sign support rod. A ring-shaped reflective strip is provided on the right side surface of the circular warning sign. A gear is connected to the bottom of the circular warning sign. The warning light is located at the top of the L-shaped bracket, and a transparent protective cover covers the outside of the warning light. This utility model uses a controller and power supply to control the motor's start. The motor's output shaft drives the gear to rotate. Because the teeth on the edge of the circular warning sign mesh with the gear, the circular warning sign rotates accordingly. A rubber scraper adheres to the surface of the circular warning sign. When the circular warning sign rotates, the fixed rubber scraper scrapes off dust from the surface of the circular warning sign, facilitating self-cleaning.

The sailing warning lamp comprises a guide rail seat, a quick-release handle, a flagpole, a light-emitting portion and a battery bin, the guide rail seat is fixed on a canoe through a screw, a guide rail is arranged in the middle of the guide rail seat in the length direction of the guide rail seat, the quick-release handle is fixed on the guide rail through a T-shaped screw, and the flagpole is fixed on the battery bin through the T-shaped screw. A flagpole is fixedly connected to the upper portion of the quick-release handle, a light-emitting part is arranged on the top of the flagpole, a battery bin is arranged in the light-emitting part, and the flag is arranged on the flagpole. The guide rail seat is matched with the quick-release handle, the sliding block is moved to the outlet along the guide rail and is lifted to finish the disassembly, the operation is simple and convenient, tools are not needed, the flagpole is convenient to store and store after being contracted, the warning effect is enhanced through the combined design of the flag and the light-emitting part, and particularly under the condition of insufficient light or severe weather, the flagpole can be conveniently disassembled. Daytime visibility can be improved through the visual mark of the flag, and night navigation safety can be guaranteed through light signals of the light-emitting part.

The utility model relates to the technical field of chemical product safety, and discloses a warning device for chemical product safety production, which comprises a protective fence comprising two arc-shaped baffle plates, the arc-shaped baffle plates are in butt joint to form a cylinder, and the butt joint position can be separated; a plurality of warning lamps are arranged on the outer wall of the arc-shaped baffle at equal intervals; the auxiliary monitoring assembly comprises a chemical leakage detector and an alarm, the chemical leakage detector and the alarm are fixedly arranged on the upper walls of the two arc-shaped baffles respectively, a control panel and a storage battery are further fixedly arranged on the arc-shaped baffles, and the warning lamp, the chemical leakage detector and the alarm are all electrically connected with the control panel and the storage battery. The warning device has the advantages that the warning effect is more visual and not prone to being ignored, and the basic accident protection capacity is achieved.

The utility model discloses a trolley type silicon -carbon rod resistance furnace relates to industrial furnace technical field, including resistance furnace main part and the trolley component of installation in the inside of resistance furnace main part, and one end fixed mounting of resistance furnace main part has electric guide rail, and the mobile end fixed mounting of electric guide rail has the door frame, and the one end of door frame is provided with a plurality of installation groove, and is provided with clamping mechanism, and the inside of two installation grooves is fixed mounting respectively with power supply and controller, and clamping mechanism includes two -way screw rod and two clamping frame, and is provided with the mounting frame between two clamping frames, through the mutual cooperation between electric guide rail, door frame, distance sensor, controller and distance monitoring piece, when door frame vertical upward movement opens resistance furnace main part, two warning light will be in the state of constant brightness, and can to warning sign illumination, effectively improve the warning effect and security of equipment.

The utility model relates to warning device technical field, concretely is a kind of safety engineering construction night warning board, including support frame, warning panel, warning panel is fixed on support frame;Still include the control module, infrared sensing unit, lamp strip, safety slogan board, timing module being set on warning panel, and the battery being set after warning panel;Safety slogan board integrates several LED lamps, and several LED lamps can show safety prompt slogan after electrification;Lamp strip is made of several light emitting diodes, and each light emitting diode is located between adjacent two LED lamps;Battery, control module, infrared sensing unit and lamp strip are electrically connected;Battery, safety slogan board and timing module are electrically connected.The warning effect of the utility model is better, and the design of power platform makes the stability of the device better.

The utility model discloses a reservoir dam monitoring and early warning device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a fixing column, the left side of the fixing column is fixedly connected with a cross rod, the surface of the cross rod is fixedly connected with a positioning block through an installation sleeve, and the bottom of the positioning block is fixedly provided with a first electric telescopic rod. The output end of the first electric telescopic rod is fixedly connected with a radar water level gauge, one side of the fixing column is fixedly connected with a box body, and a second electric telescopic rod is fixedly installed in an inner cavity of the box body. The alarm lamp and the loudspeaker can extend out through the second electric telescopic rod in the box body on one side of the fixing column, and acousto-optic dual early warning is achieved when the water level is abnormal. And the alarm lamp flickers and the loudspeaker gives out alarm sound, so that the attention of related personnel can be quickly aroused. And a first reflecting plate on one side of the box body and a second reflecting plate driven by a second motor can enhance the warning effect through light reflection when the light is dark, so that the early warning range is expanded, and the early warning effectiveness is improved.

The utility model belongs to the technical field of electric power overhaul, and particularly relates to a warning device for electric power overhaul, which comprises a bottom plate and universal wheels, a warning structure is arranged above the bottom plate, the warning structure comprises a warning mechanism and a supporting mechanism, the warning mechanism comprises a positive and negative motor, a rotating plate, a rotating rod, a limiting plate and an adjusting box, and the supporting mechanism is arranged above the bottom plate. The output end of the forward and reverse motor is connected with the bottom of the rotating plate. According to the warning device for electric power overhaul, the warning plate can be driven to rotate, warning information is transmitted from multiple angles, the warning coverage range is expanded, meanwhile, the reflecting plate can reflect light rays at night, the four alarms can give out warning sounds, visual and auditory dual warning is formed, different light ray conditions and environments are effectively coped, the warning effect is enhanced, and the warning effect is improved. The height of the warning board can be rapidly adjusted, the warning board can be adjusted to the proper height according to the actual requirements of the space height, the sight range of personnel and the like of a maintenance site, it is ensured that warning information is clear and visible, and the applicability of the device is improved.

The utility model relates to the related field, and particularly discloses safety equipment for monitoring the temperature of a tungsten hexafluoride reactor, which comprises a temperature monitoring panel, a tungsten hexafluoride reactor main body, a temperature sensing rod, a suspender and a sealing gland, the bottom of the temperature monitoring panel is sealed on a sealing opening in the middle of the top end of the tungsten hexafluoride reactor body through a sealing gland, the middle of the bottom end of the temperature monitoring panel is connected with a temperature sensing rod through a hanging rod, cooling fins are arranged in the middles of the two sides of the temperature monitoring panel, and a warning lamp is arranged on one side of the top of the temperature monitoring panel. The middle of the bottom end of the temperature monitoring panel is connected with the temperature sensing rod through the hanging rod, the temperature sensing head is arranged at the end of the temperature sensing rod, multidirectional large-range temperature sensing can be carried out through the temperature sensing rod and the temperature sensing head, the temperature sensing efficiency and effect can be improved, the heat dissipation fins are arranged in the middles of the two sides of the temperature monitoring panel, and the heat dissipation efficiency is improved. The heat dissipation effect of the temperature monitoring panel can be improved through the heat dissipation fins.

The application discloses a kind of based on multi-modal data fusion's intelligent early warning system and method of accompanying, belong to wisdom medical treatment and artificial intelligence technical field, this system includes multi-modal data acquisition and pre-processing module, dynamic weight fusion module, intelligent risk assessment module and multidisciplinary collaborative intervention module, through hardware synchronization and software interpolation, the time-space alignment of multi-source sensor data is realized, the dynamic weight fusion mechanism combining multi-head self-attention and evidence theory is used to process modal conflict, risk dynamic assessment is carried out using sliding window exponential weighting and LSTM time series modeling, and based on medical knowledge graph and improved hungarian algorithm, the intelligent scheduling and closed-loop feedback optimization of nursing resource are realized.

This invention discloses a high-mounted brake light and braking system for vehicles. The high-mounted brake light includes an LED light assembly, a power input interface, and a control circuit board. The power input interface integrates a communication protocol pin to receive a mode switching signal output by the vehicle's front-end host. The control circuit board includes a current-limiting circuit, a strobe control circuit, and a main control unit. The strobe control circuit is connected to the current-limiting circuit and the power input interface, respectively. The current-limiting circuit is connected to the LED light assembly, respectively. The main control unit is connected to the strobe control circuit and the communication protocol pin, respectively. It is used to control the strobe control circuit to output a continuous constant current or a high-frequency on / off constant current to the LED light assembly according to the mode switching signal, so as to drive the LED light assembly to switch between a constant-on warning mode and a super strobe warning mode accordingly. Thus, in low-visibility and severe weather conditions such as rain, fog, and haze, the super strobe warning mode can be switched to improve the warning effect.

The utility model discloses an intelligent anti-moving warning board, which belongs to the technical field of hydropower station maintenance safety protection and comprises a warning unit, an anti-moving unit, an alarm unit and a remote synchronization unit. The anti-moving unit is electrically connected with the alarm unit; the anti-moving unit triggers the alarm unit to give an alarm after detecting that the warning unit is moved; and the remote synchronization unit is used for remotely monitoring the state of the warning unit. The intelligent anti-moving warning board can effectively solve the problems that in the prior art, a traditional warning board cannot give an alarm actively after being moved, needs to be found through manual inspection, has the risk of response delay, cannot be linked with a remote monitoring system and the like.

The novel multifunctional warning lamp comprises a lamp body and an installation support, the lamp body comprises a main body shell, a transparent cover and a solar photovoltaic panel, and an energy storage battery, a battery fixing frame, a main circuit board and a main board fixing frame are arranged in the main body shell. A plurality of microwave components and a plurality of dot matrix laser heads are arranged on the main circuit board; a warning lamp panel and a reflecting prism are arranged in the transparent cover; a plurality of ultrasonic loudspeakers and a plurality of analog sound loudspeakers are fixedly arranged on the main body shell; one end of the transparent cover is connected with the body shell, the other end of the transparent cover is provided with a cover plate, the cover plate is provided with a charging interface, a control switch and an electric quantity display lamp, and a support angle adjusting disc is arranged at the joint of the body shell and the mounting support. According to the technical scheme, the structure design is reasonable, multiple functions are achieved, the warning effect is good, installation is convenient, the application range is wide, and practicability is good.

The invention relates to the technical field of vehicle accessory devices and vehicle safety auxiliary devices, in particular to a storage backpack at the tail of an automobile and an automobile tail door with a storage function, which comprises a shell with an open back, a lining arranged on the inner side of the shell, a brake lamp and a rear camera, first annular waterproof foam is arranged on the portion, close to the open side of the back face, of the side wall of the lining, the lining is sleeved with the shell, the shell and the lining are connected to form a storage backpack, the first annular waterproof foam is used for sealing an assembly gap between the shell and the lining, the lining is provided with a storage cavity, and the storage cavity is communicated with the shell. The opening of the storage cavity faces the open side of the back face of the shell, on the basis that the tail storage function is guaranteed, reasonable integrated arrangement of the brake lamp and the rear camera is achieved, and the function integration level and waterproof reliability of the whole machine and the working stability of electric devices are improved.

The utility model belongs to the technical field of fire-fighting installation engineering, and discloses a fire-fighting installation engineering warning device which comprises a base, a groove is formed in the bottom of the base, a fixing frame is fixedly installed at the top end of the base, a protective sleeve is fixedly connected to the top end of the fixing frame, a supporting column is fixedly connected to the top end of the protective sleeve, and warning boards are arranged on the two sides of the supporting column. A warning assembly is arranged between the warning board and the supporting column, the top end of the supporting column is fixedly connected with a fixing base, and a moving assembly is arranged between the base and the fixing frame. The inclination angle of the warning board can be conveniently adjusted through the arranged warning assembly, so that the warning effect is improved, the device is conveniently moved and placed through the arranged moving assembly, and rapid deployment is facilitated.

The utility model provides a kind of anti-collision car with warning device, including vehicle body, the rear of vehicle body is connected with the anti-collision box that can be unfolded and folded, vehicle body is fixedly connected with the warning assembly that can signal to rear car, vehicle body includes the rear compartment that can accommodate load, the tail of rear compartment is fixedly connected with warning assembly, warning assembly includes the warning light frame fixedly connected with the tail of rear compartment, safety restraint structure is equipped between warning light frame and the bottom of rear compartment.The utility model sets up safety restraint structure in warning light frame and the bottom of rear compartment, when warning light frame is separated from rear compartment due to external force, safety restraint structure can keep warning light frame and rear compartment connected, prevent it from flying from vehicle body due to inertia, to avoid becoming new security risk, while it can ensure that anti-collision car continuously and effectively signals to rear car, maintain warning function.

The utility model relates to road construction technical field especially is a kind of dynamic warning cone-shaped cylinder, including cone-shaped cylinder body and cone-shaped cylinder base, the bottom end of cone-shaped cylinder body is installed with cone-shaped cylinder base, the upper side swing mounting of cone-shaped cylinder body has movable cylinder, the cross section of movable cylinder is cross type structure, the top of movable cylinder is installed with secondary warning structure;The secondary warning structure includes mounting seat, the top of mounting seat is installed with top plate by connecting spring, and the upper side of top plate is installed with warning light;In the utility model, by the cross type structure movable cylinder being set, when it can produce dynamic swing under the action of external force or airflow, cooperate warning light and reflector plate on secondary warning structure, significantly enhance visual impact force, improve warning effect.

The utility model discloses a warning device for a municipal road, which relates to the field of road warning and comprises a warning cone, and the inside of the warning cone is hollowed out. A feeding port is formed in the top end of the warning cone, a supporting column attached to an opening in the bottom end of the feeding port is installed in the warning cone, and a through hole corresponding to the feeding port is formed in the top of the supporting column. Through the design of adjustable weight, the stability of the warning cone in severe weather or complex environment is effectively improved, the situation that the warning cone is blown down or shifted is reduced, the continuity of the warning effect is ensured, meanwhile, water adding and draining operation of the warning cone is simple and convenient, the weight of the warning cone can be rapidly adjusted according to actual needs, installation and movement are convenient, and the warning cone is suitable for popularization and application. All the parts of the warning cone are detachable, even if the shell of the warning cone is damaged, the internal parts can still be recycled, the use cost is reduced, the warning effect is further enhanced through the arrangement of the multiple sets of reflective strips and the design that the warning cone can still reflect light even if the warning cone is pushed over, and the road safety is improved.

The application relates to the technical field of road civil construction, in particular to a road civil construction site safety warning device, which comprises a safety warning device base, the upper surface of the safety warning device base is fixedly installed with an installation warning box body, beneficial effects are that: a data acquisition module is used for image recognition and distance measurement on passing construction site vehicles and pedestrians, data is transmitted to a safety warning module for analysis and judgment, a response is given according to the distance between the vehicles and pedestrians and the construction site, the safety warning module sends a first response signal to a collision avoidance response module and a warning response module, the response process of the collision avoidance response module is that a telescopic rod pushes a movable block to make a collision avoidance arc-shaped baffle pop up, the installation warning box body is protected against collision, the response process of the warning response module is that a main motor works to make a telescopic frame extend, a high-strength searchlight emits strong light irradiation, and a voice warning of a voice player is given, so that the warning effect is further improved to drive away the approaching vehicles and pedestrians.

A gas pipeline protection device includes a base plate on which a gas pipeline is mounted. First angle steels are respectively installed on the left and right sides of the gas pipeline, and are fixedly mounted on the base plate by support rods. An arc-shaped steel plate is positioned above the two first angle steels. One side of the arc-shaped steel plate is hinged to one of the first angle steels, and the other side is detachably connected to the other first angle steel. First rotating shafts are rotatably mounted on both sides of the first angle steels. This invention features a simple structure and ingenious design. The synergistic function of combining the impact and compression protection of the first angle steels and the arc-shaped steel plate with the intrusion warning of the warning sign solves the problem that existing gas pipeline protection devices typically focus on only a single function. The flipping of the warning sign provides an immediate and strong visual warning upon intrusion, offering a better warning effect than a single warning sign. Furthermore, the purely mechanical nature of the device improves its reliability and reduces maintenance costs.

The utility model relates to the technical field of barrier-free building facilities, in particular to a blind sidewalk brick with a somatosensory prompt function, which comprises a face brick, a support shell, an elastic piece and a base, the face brick is borne at the upper end of the support shell, the lower end of the support shell is attached to the elastic piece, the side wall of the support shell is provided with a limiting groove, the elastic piece is arranged on the base, and the side wall of the base is provided with a limiting block. The limiting blocks and the limiting grooves are matched to achieve vertical movement of the supporting shell and the base. The blind sidewalk is even in overall stress, stable in structure and capable of slowly sinking when bearing a certain force, blind people can be helped to better perceive the blind sidewalk through the integrated sensing prompt, and the warning effect of the blind sidewalk is improved.

The utility model discloses a warning device for engineering construction. The warning device comprises a warning board, a support adjusting mechanism; the fixing mechanism is installed on the supporting and adjusting mechanism, the supporting and adjusting mechanism can adjust the installation height of the fixing mechanism, and the fixing mechanism is used for fixing a warning board; the fixing mechanism comprises a mounting plate and a fixing plate, the mounting plate is provided with a warning board display opening, a plurality of fixing holes are formed in the two sides of the warning board display opening, the fixing plate is provided with another warning board display opening, a plurality of fixing rods corresponding to the fixing holes are arranged on the fixing plate, and the fixing rods are connected with the warning board display opening. When the fixing rods are tightly inserted into the corresponding fixing holes, the warning board is clamped and fixed by the mounting plate and the fixing plate. The warning board has the advantages that the warning board can be conveniently installed and fixed, the installation height of the warning board can be adjusted, dust on the surface of the warning board body can be cleaned, the phenomenon that the warning effect is reduced due to the fact that the dust is adsorbed to the surface of the warning board body is avoided, and operation is easy and fast.

The utility model discloses a safety protection device for a municipal road construction inspection well mouth. The safety protection device comprises a bottom ring, a supporting rod, a fixing top and a fixing mechanism. The fixing mechanism is arranged at the top of the bottom ring and comprises a fixing part and a locking part, the fixing part is connected with the outer wall of the supporting rod in a sleeving mode and used for fixing the bottom ring and the inner wall of the wellhead, and the locking part is used for limiting movement of the fixing part; the fixing mechanism is arranged at the top of the bottom ring, the fixing ring is placed at the top of the bottom ring, the spring pushes the fixing block to move, the fixing block is made to be away from the inner wall of the bottom ring and attached to the inner wall of a wellhead, the fixing ring and the inner wall of the wellhead are fixed through the fixing block, the push rod is pushed, and the push rod drives the sliding rod to move. The bottom ring is fixedly connected with the well mouth through the fixing ring, and the situation that the safety protection device is separated from the well mouth due to severe weather is avoided.