64results about "Mechanical audible signalling" patented technology

The mining lithium battery protection device comprises a battery box body, a fire extinguishing trigger mechanism, a fire extinguishing assembly and an acoustic early warning unit, the interior of the battery box body is divided into a battery cabin and an auxiliary cabin which are distributed up and down through a sealing partition plate, the interior of the battery cabin is used for containing a lithium battery pack, and the fire extinguishing trigger mechanism comprises a communicating pipeline and a valve; the fire extinguishing assembly comprises a fire extinguishing agent container, the output end of the fire extinguishing agent container is located on one side of the lithium battery pack, and the valve is used for controlling the output end of the fire extinguishing agent container to be opened and closed. The acoustic early warning unit comprises a brass whistle, the air inlet end of the brass whistle is communicated with the auxiliary cabin, and the sound outlet of the brass whistle is located outside the battery box body. A mechanical fire extinguishing and early warning triggering mechanism is adopted, electric power work is not depended, the structure is simple and stable, and the early warning and fire extinguishing actions are prevented from being influenced by factors such as power failure and electronic element damage.

The invention relates to the technical field of attenuators, and discloses a conductor short circuit type mechanical adjustable attenuator which comprises an attenuator body, and a first interface and a second interface are arranged on the two sides of the attenuator body respectively. A concentric-square-shaped mounting plate is arranged in an inner cavity of the attenuator body, and a knocking plate is arranged in an inner cavity of the concentric-square-shaped mounting plate. According to the invention, when a worker debugs the attenuator body, and when the precision between the worm and the worm gear and the precision between the lead screw and the guide sleeve are not accurate, the number of turns of rotation of the worm is increased, so that the movement track of the concentric-square-shaped mounting plate arranged below becomes more accurate; a knocking plate can horizontally move between a convex block and a groove which are arranged on a mounting plate, so that the knocking plate is overturned, and a worker is reminded of inaccurate precision between a worm and a worm gear or between a lead screw and a guide sleeve and the like at the moment; therefore, workers can conveniently perceive in the debugging process at the first time, and maintenance and replacement are achieved.

A ship navigation assisting device includes: an area setter 304 that sets, for a target ship, a polygonal safe navigation area defined by a plurality of vertices and surrounding the target ship; a collision point calculator 305 that calculates, based on a speed of the own ship, a relative position between the own ship and the target ship, and a velocity vector of the target ship, collision points between each of the plurality of vertices constituting the safe navigation area and the own ship; and a collision danger area calculator 306 that connects the plurality of collision points calculated by the collision point calculator 305 to calculate a collision danger area.

The utility model belongs to the field of municipal engineering, and provides a safety warning device for municipal engineering, which comprises a shell, a safety warning device and a safety warning device, the winding rod is rotatably arranged in the shell; the fluorescent isolation strip is wound on the winding rod, the inner end of the fluorescent isolation strip is fixedly connected with the side wall of the winding rod, and the outer end of the fluorescent isolation strip extends out of the window; the winding assembly is arranged in the shell and used for winding the fluorescent isolation strip; and the lighting assembly is arranged at the top end of the shell. When the safety warning device is used on a construction site at night, even if light is poor, the fluorescent isolation strip has a good warning effect. And the lighting assembly is arranged, so that a certain lighting effect can be achieved, passing personnel and vehicles can conveniently find the safety warning device shell body and the fluorescent isolation strip in time, and the warning effect is improved.

The utility model discloses a CO2 capture and storage injection monitoring device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a storage box, the top of the bottom plate is fixedly connected with a frame, the top of the bottom plate is fixedly provided with a motor through bolts, the output end of the motor is fixedly connected with a threaded rod, and the top of the surface of the threaded rod is in transmission connection with a second gear. The surface of the second gear is engaged with a first gear, and the bottom of the first gear is fixedly connected with a second rotating rod. The motor drives the threaded rod to rotate, the threaded rod drives the second gear to rotate, the second gear drives the first gear to rotate, the first gear drives the second rotating rod to rotate, the second rotating rod drives the rubber plate to rotate, and the rubber plate is in contact with the surface of the knocking plate and drives the knocking plate to rotate while rotating. When the knocking plate makes contact with the rubber plate, large knocking sound can be generated, an operator can be reminded through continuous knocking sound, and the monitoring efficiency is improved.

The invention belongs to the technical field of electrician instruments and meters, and particularly relates to a charging pile safety detection and alarm device which comprises a box body and a box cover, a detection device is installed in the box body, an interface seat is arranged on the detection device, an insertion groove is formed in the interface seat, a protection cover is installed on the interface seat, and the protection cover is provided with an alarm device. A temperature sensor is mounted in the interface seat; a locking groove is formed in the inner wall of the inserting groove, a guiding inclined face is arranged at the lower end in the locking groove, a clamping block is slidably installed in the locking groove, and a silica gel layer is arranged on the surface of the clamping block; an electromagnet is installed in the detection device, and the clamping block is connected to the electromagnet through an ejector rod. The arc-shaped rod is made of shape memory alloy, and a heat pipe is installed in the ejector rod. The device is simple in structure, and can give an alarm in time and automatically disconnect the charging gun and the interface seat when an abnormal condition occurs.

The utility model discloses an automatic alarm precipitation well protection device, which comprises a bottom frame, a solar panel, an alarm and a storage battery, a bottom plate is fixed above the bottom frame, a hollow column is fixed in the middle above the bottom plate, a top plate is fixed at the top of the hollow column, the solar panel is arranged above the top plate, and the alarm is arranged above the solar panel. An alarm is fixed to the middle of the top plate, mounting nails are mounted on the surface of the bottom plate, a connecting rod is arranged on the surface of the hollow column, a movable rod is connected to the surface of the connecting rod, a supporting plate is fixed to the end of the movable rod, a clamping groove is formed in the surface of the supporting plate, and fixing blocks are fixed to the two ends of the surface of the connecting rod. According to the dewatering well protection device with the automatic alarm function, the adjustable connecting rod and the movable rod can be used in cooperation with the supporting plate and the vertical plate, the device can conveniently support the inner walls of dewatering wells with different diameters, and the protection effect of the device on the dewatering wells is improved.

The utility model provides a substation high-voltage test safety protection device, and relates to the technical field of high-voltage test safety protection. Fixing bases are evenly and fixedly installed on the edge of the upper end of the fixing table, and the two ends of each fixing base are each provided with a row of connecting holes. All the fixed inner frames are mutually connected to form a layer of protection structure, high-voltage equipment can be directly isolated from the external environment, the firm structure can resist accidental collision, human climbing and the like, irrelevant personnel or objects are prevented from entering dangerous areas from the physical level, and the protection structure is a first firm barrier for guaranteeing the safety of the transformer substation and has good practicability. And then a layer of protection warning structure is formed on the outermost periphery of the high-voltage transformer substation by using the connecting net and the peripheral rods, so that the problem that two layers of protection structures need to be mounted on the periphery of the high-voltage transformer substation because safety protection is required during the test of the high-voltage transformer substation, otherwise, passers-by can easily get close to the high-voltage transformer substation to cause danger is solved.

The utility model discloses an anti-burnout junction box in a photovoltaic power generation system, which comprises a box body, the box body is made of flame-retardant materials, two wiring terminals are arranged in the box body, a diode is fixedly connected between the two wiring terminals, one end of each wiring terminal is fixedly connected with a cable, the side surface of the box body is provided with a raised box, and the raised box is fixedly connected with the two wiring terminals. A pulling sound device is arranged in the protruding box, and the cable is clamped in the pulling sound device. When the cable is excessively dragged, the dragging sound device generates vibration sound to remind installation personnel to pay attention to not causing connection loosening of the cable, so that the installation quality is ensured, and the burning risk increase caused by human factors is avoided.

The utility model discloses a bird-shaped doorbell which comprises a connecting seat, the top of the connecting seat is fixedly connected with a bird body, the top of the connecting seat is fixedly connected with two rubber columns, the top ends of the two rubber columns are jointly fixed with a metal cylinder, and a connecting frame is rotatably inserted between the inner walls of the two sides of the bird body through a rotating shaft. One end of a rotating shaft of the connecting frame is in key connection with a transmission gear, the top end of the connecting frame is fixedly connected with a connecting spring, and the top end of the connecting spring is fixed with a bird head located at the top of the bird body. According to the utility model, the metal ball at the mouth part of the bird head is knocked on the metal cylinder to realize the door knocking operation, so that the bell knocking operation can still be realized in case of power shortage, and then the other teeth on the sliding block are meshed with the transmission gear again, and the metal ball at the mouth part of the bird head is knocked on the metal cylinder again under the action of the transverse spring, so that the door knocking operation is realized. Therefore, the continuous door knocking action is realized, the door knocking effect is improved, and then the electronic doorbell can make different birds' sounds.

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 invention relates to the technical field of fire-fighting smoke sensing devices, and provides an intelligent fire-fighting smoke sensing device with a self-cleaning function, which can effectively promote smoke flow on the premise of ensuring the smoke detection effect, can improve the detection sensitivity while improving the smoke entering efficiency, and can effectively clean the smoke after the detection is completed. The smoke staying time in the rotary cylinder is short, sedimentation and gathering of smoke dust in the rotary cylinder can be greatly reduced, the practicability is improved, the use cleanliness is better, the fire detection module is installed in the base, the assembly structure comprises a conical shell and a double-hemisphere shell, and the conical shell is provided with a plurality of conical holes. The conical shell is fixedly connected to the bottom end of the base, the double-hemisphere shell is fixedly connected to the bottom end of the conical shell, the whirling smoke driving structure comprises a whirling cylinder, the whirling cylinder is rotationally connected into the conical shell, a plurality of labyrinth inward-extending frames are fixedly connected into the whirling cylinder, double spiral plates are fixedly connected into the whirling cylinder, and a wind chime driving assembly is installed in the double-hemisphere shell.

The utility model discloses a carbon inspection data acquisition device, which belongs to the technical field of carbon inspection data acquisition devices, and comprises a data acquisition module and a hinge, one side of the data acquisition module is provided with the hinge, the data acquisition module is internally provided with a protection assembly, the data acquisition module is internally provided with an alarm assembly, and the alarm assembly is connected with the hinge. The protection assembly comprises a protection plate, clamping plates are arranged on one side of the data acquisition module and one side of the protection plate, and a rubber frame is fixedly connected to the bottom surface of the protection plate; according to the utility model, through the arrangement of the protection assembly, through the design, the protection plate is used for protecting the display, the display is prevented from being damaged due to impact of external factors, the protection plate is fixed and opened conveniently through a sliding strip, a sliding plate and a clamping plate, and the sealing performance of the protection plate and the data acquisition module is improved through a rubber frame; therefore, the waterproof performance of the protection plate is improved.

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 relates to the technical field of building equipment, and discloses an automatic sizing robot for wall bricks, which is capable of moving along the surface of the wall bricks stably under the guidance of the directional wheels, and the wall bricks provide stable support for the robot when the robot moves along the wall bricks with the help of the directional wheels, the symmetrically distributed directional wheels form reliable guiding constraints with the side edges of the wall bricks, and the robot can only move along the predetermined track of the wall bricks, so that the robot position and the wall bricks are accurately aligned during the sizing process, the robot movement deviation phenomenon is effectively eliminated, and the accuracy and stability of the sizing operation are improved.

To effectively address the diversification of hidden camera functions, better protect user privacy, and provide a portable, multi-functional detection device that is easy to carry, easy to use, relatively inexpensive, and advantageous for widespread adoption and use. [Solution] The device includes a housing 1, a handle 11 provided on the housing, a control circuit board 2 provided inside the housing, an infrared detector 3 and a red light generator provided on the housing, both of which are electrically connected to the control circuit board, the infrared detector is used to detect red light emitted from the camera, the red light generator is used to emit red light toward the camera, and a signal detection module 5 is further provided on the control circuit board, which is used to detect whether or not a communication signal is present in the surroundings.

This invention relates to the field of audible warning technology, and more specifically, to a safety warning device for trackless rubber-tired vehicles. The device includes a housing fixedly installed on the trackless rubber-tired vehicle, and a pneumatic mechanism is disposed within the housing. The pneumatic mechanism consists of a cylinder, a first piston, and a telescopic rod. The first piston is movably disposed inside the cylinder, and its top end is fixedly connected to one end of the telescopic rod. The telescopic rod passes through the top end of the cylinder and extends to its exterior. The circumferential sidewall of the telescopic rod has linearly arranged toothed grooves along the axial direction, and one side of the telescopic rod has transmission teeth that mesh with the toothed grooves. A speed ratio mechanism and a delay mechanism are respectively disposed on both sides of the transmission teeth, and the transmission teeth, speed ratio mechanism, and delay mechanism are coaxially arranged. The transmission end of the speed ratio mechanism is connected to a pneumatic warning mechanism. This invention solves the problem that warning devices for trackless rubber-tired vehicles rely on electric power or require manual operation when temporarily stopped in mines.

The utility model discloses a multifunctional brake pedal structure of an electric sickbed, which relates to the technical field of electric sickbeds and comprises a rotating shaft and a pedal, a loudspeaker component and a battery component are arranged in the pedal, a switch is embedded in the rear end face of the pedal, and the loudspeaker component and the switch are both electrically connected with the battery component. The front end face of the pedal is fixedly connected with a first inserting block and a second inserting block, the outer wall of the rotating shaft is fixedly sleeved with a shaft sleeve, the outer wall of one side of the shaft sleeve is fixedly connected with a first socket and a second socket, and the pedal is detachably connected with the first socket and the second socket in the mode that the first inserting block and the second inserting block are matched with the first socket and the second socket. According to the hospital bed, the horn assembly and the switch are arranged, the horn can be turned on to play languages only by touching the switch through tiptoes, front personnel are effectively reminded to pay attention to avoiding, compared with traditional shouting, the better transmission effect is achieved, the risk of collision in the moving process of the hospital bed is greatly reduced, and the safety of patients and medical staff is guaranteed.

The invention relates to the technical field of fireproof doors, and discloses a fire-fighting fireproof door with an emergency water spraying structure, the fire-fighting fireproof door comprises a fireproof door, the rear side of the fireproof door is fixedly connected with a water tank, the water tank is provided with a water spraying mechanism, and the water spraying mechanism comprises a first water pump and a second water pump. Through the design of the water spraying mechanism, when a fire occurs, if an escape person catches fire or continues to take water for emergency adaptation and the like, the frame body on the fireproof door can be taken down, then the drain pipe is taken for water spraying, and during use, a user can place the frame body on the ground and stand in the frame body, so that the escape person can take the drain pipe for water spraying; the water taking frame is further placed in the frame body, at the moment, water after emergency spraying flows into the frame body and can be directly pumped into the water tank again through the water taking frame to be recycled, the situation that water cannot be sprayed for use due to the fact that the water in the water tank is rapidly consumed and cannot be supplemented in time is avoided, and the use stability is improved.

The utility model discloses a polypeptide synthesizer equipment alarm device, relates to the polypeptide synthesizer equipment field, and comprises a machine body, the top of the machine body is provided with four installation grooves, electromagnet blocks are installed at the lower parts of the interiors of the installation grooves, magnets are inserted in the installation grooves, and the top of each magnet is provided with an alarm. Protection assemblies are arranged on the two sides of the alarm, and each protection assembly comprises fixing cylinders installed on the two sides of the alarm. Through the arrangement of the protection assembly, when the sliding seat moves towards the alarm, the sliding seat can drive the protection cylinder to move, so that the protection cylinder moves into the storage cavity, the protection cylinder and the fixed cylinder can be ensured to always shield the electrode bar, the electrode bar is prevented from being exposed in the external environment, dust or stains are prevented from being attached to the surface of the electrode bar, and the service life of the electrode bar is prolonged. And the protection effect on the electrode bar is further improved.

The invention belongs to the technical field of geological disaster early warning, discloses a trigger type flood early warning device utilizing water flow and buoyancy effects, and is mainly used for solving the problems that river hydrological information monitored by existing sensing equipment is not visual and is easily influenced by external factors. Driving sources adopted by the device are buoyancy based on water level change and water flow impact based on river channel flow velocity change, in the early stage of flood coming, the river channel water level and flow velocity are greatly increased, and then rotation of the knocking cam and downward movement of the early warning bell are achieved through the two driving mechanisms correspondingly; the knocking cam can repeatedly knock the early-warning bell to give out early-warning sound, early-warning information is more visual and does not need to depend on any external power supply (such as mains supply, a battery or solar energy), which means that under extreme weather such as rainstorm and thunder and lightning, when an electric power system is most likely to be interrupted, the device can work most reliably, and the early-warning bell can work more reliably. And the problem of power supply guarantee is fundamentally solved.

The invention relates to the technical field of livestock breeding, in particular to free-range chicken feeding equipment which comprises a water storage barrel, a fixing ring is fixedly connected to the surface of the water storage barrel, and a handle belt is hinged to the position, close to the upper end, of the surface of the water storage barrel. Meanwhile, automatic control over water supplementing of the water storage bowl is achieved through water control of the floating balls, manual operation steps are reduced, the first floating ball in the first water outlet pipe and a sliding rubber pad form an automatic water control mechanism, and when the water storage bowl lacks water, the floating balls enable the sliding rubber pad to be located below a second water inlet under the self-weight effect; water in the water storage barrel flows into the water storage bowl through the first water inlet hole, the first water outlet pipe, the second water inlet hole and the second water outlet pipe, after the water storage bowl is filled with water, the floating ball floats upwards under buoyancy and drives the sliding rubber pad to move upwards to the position above the second water inlet hole, water flow is blocked, and waste caused by drinking water overflowing is avoided.

The utility model relates to the technical field of centrifugal compressor units, and discloses an anti-surge protector for a centrifugal compressor unit, which comprises a valve body, the left end and the right end of the valve body are communicated with pipelines, the left end and the right end of the top of the valve body are respectively provided with a second fixed bent plate, and the top of each pipeline is provided with a first fixed bent plate. And the left and right ends of the top of the first fixing bent plate and the left and right ends of the top of the second fixing bent plate are in threaded connection with second screws, the left side of the top of the second fixing bent plate is rotationally connected with a rotating short column, and the right side of the top of the first fixing bent plate is fixedly connected with a connecting circular plate. According to the utility model, the rotating bent rod is rotated to loosen the connecting rope, then the first fixed bent plate and the second fixed bent plate are bounced off under the action of the spring, the pipeline and the valve body are separated, after the sealing material is replaced, the screw and the bolt are screwed again, and the bent rod is rotated reversely to complete device installation, so that the sealing material is convenient to replace, and the application range is expanded.

The utility model belongs to the technical field of water supply, and particularly relates to a multi-stage pressurized water supply device for rural drinking water, which comprises a water tank and an overflow mechanism, the water tank comprises a tank body and a water injection pipeline, and the water injection pipeline is arranged at the top of the tank body; the overflow mechanism is arranged on the side wall of the box body and comprises an overflow pipe, a shell, a sealing cover, a rotating shaft, blades, elastic pieces and tuning forks, the overflow pipe is connected to the top of the side wall of the box body, the shell is arranged on the overflow pipe, the sealing cover is arranged at the front end of the shell, the rotating shaft is arranged in the shell, the blades are arranged outside the rotating shaft, and the elastic pieces are arranged on the rotating shaft. When water flow in the overflow pipe circulates, the blades are driven to rotate, the blades drive the rotating shaft to rotate, the rotating shaft drives the elastic piece to rotate, the elastic piece knocks the tuning fork, sound is generated, a worker is reminded to stop water feeding, overflowing water is guided through the overflow pipe, the overflowing water is conveniently collected, and waste caused by direct spilling of water resources is avoided.

The invention provides a breakage-proof alarm device for a municipal service all-in-one machine. The breakage-proof alarm device comprises a machine body with a containing cavity, a protection mechanism and an alarm mechanism, wherein the protection mechanism and the alarm mechanism are arranged on the machine body; the protection mechanism comprises a protection plate movably arranged on the machine body, a locking piece used for locking the protection plate at the folding position, a stress plate arranged on the outer side of the machine body, a transmission assembly used for connecting the stress plate and the locking piece, and a movement structure connected with the protection plate. The transmission assembly is configured to generate displacement when the stress plate is stressed to move and drive the locking piece to move so as to unlock the protection plate by the locking piece; the moving structure is used for driving the protection plate to move to the unfolding position to shield the operation interface area of the machine body after the locking of the locking piece is released; and the alarm mechanism is configured to give an alarm sound when being impacted by the protection plate in the unfolding process of the protection plate. According to the device, the protection effect of the machine body can be improved, loss is reduced, and the alarm effect is achieved through impact sound production while protection action occurs.

The invention relates to the technical field of medical gas monitoring and alarming, in particular to a medical gas alarming device with a state monitoring function, which comprises a gas isolating outer box used for monitoring a hyperbaric oxygen chamber, and the gas isolating outer box covers the periphery of the hyperbaric oxygen chamber. A chemical energy, heat energy and mechanical energy linkage safety mechanism is formed through an assembly composed of a gas insulation outer box, an alarm assembly and a self-closing valve set, a set of non-electric-power-dependent alarm device with a state monitoring function is provided for use of a medical high-pressure oxygen chamber, and a chemical reaction generated by a heating medium meeting oxygen serves as an initial trigger signal to achieve the purpose of alarming the medical high-pressure oxygen chamber. Chemical energy is converted into heat energy, the heat energy is transmitted to the water tank through a copper rod, the heat energy is converted into pressure potential energy of water vapor, steam pressure drives an impeller mechanism, the pressure potential energy is converted into rotating mechanical energy, a rotating cam mechanism converts the rotating mechanical energy into continuous sound alarm through a shifting block and a magnetic suction valve plate, and an air source is automatically cut off. And power support is not needed.

The application provides an environment monitoring device with an alarm function and relates to the field of environment monitoring.The application comprises a device main body, an inside wall of the device main body is provided with a detection cavity, and a dust collecting mechanism is arranged in the detection cavity.In general, when detection is performed, the slow rotation of the dust collecting fan can draw the external dust into the dust collecting mechanism.When the dust is collected to a certain degree, the acceleration mechanism is triggered.Through the arrangement of the acceleration mechanism, when the device is used to detect the indoor environment with more dust, the operator can first open the starting motor, the starting motor drives the dust collecting fan to rotate slowly through the transmission rod, the external dust is drawn into the dust collecting drawer through the dust collecting port when the dust collecting fan rotates slowly, and when the dust on the dust collecting drawer is more and reaches a certain weight, the acceleration mechanism is started, the dust collecting fan originally rotates slowly and rapidly rotates, the external dust is rapidly sucked, and dust is removed.

The utility model discloses a mechanical doorbell with double-path knocking frequency, which comprises a protection mechanism, a driving mechanism and a ringing mechanism, the protection mechanism comprises a shell, a shell cover and a driving mechanism, the shell cover and the driving mechanism are buckled with the shell, and the driving mechanism comprises a plurality of limiting plates connected with the rear side wall of an inner cavity of the shell. According to the utility model, when a take-out person or a courier is identified, the movable end of the micro electric push rod is kept in a contraction state, so that the swing track of the knocking hammer corresponds to the metal sheet group with smaller spacing on the upper layer; when a relative and friend mode is recognized, the movable end of the micro electric push rod automatically extends, the knocking range is switched to the lower layer metal sheet group with the large interval, the knocking hammer forms differentiated swing amplitude and knocking frequency in different modes through the preset differentiated interval of the upper and lower metal sheets, and finally the 3-5 Hz variable acoustic feedback effect is achieved. Various living environments are flexibly adapted, and the use comfort of the product is improved.

The utility model relates to the technical field of enclosing walls, and particularly discloses a split mounting type antique enclosing wall which comprises a wall body, a door opening is formed in the bottom of the wall body, two door plates which are oppositely combined with each other are arranged in the door opening, shifting blocks are arranged at the upper ends of the door plates, two sets of supports are arranged on the left side and the right side of the wall body respectively, and first cantilevers are fixedly connected to the upper ends of the supports. A first bell is hung at the lower end of the first cantilever, an adjusting block is slidably arranged at the upper end of the first cantilever, a firing pin structure for knocking the first bell is arranged at the lower end of the adjusting block, and an adjusting part for adjusting the distance between the firing pin structure and the first bell is arranged on the outer side of the first cantilever, so that the firing pin structure is always kept at a proper knocking position; after the door plate is opened, the shifting block on the door plate can move towards the direction of the adjusting block, the shifting block pushes the firing pin structure, the firing pin structure knocks the first bell, sound is generated, and therefore whether cats and dogs pass or not is perceived.