36results about How to "Reduce electrical safety hazards" patented technology

The request discloses an electric equipment control device and a method. The device comprises a controllable switch, a communication unit and a control unit. The controllable switch is connected between the alternating current power supply end and the load end of a power supply path of the electric equipment. The communication unit is used for receiving the control signal sent by a user control terminal. The control unit is used for connecting or disconnecting the controllable switch according to the control signal received by the communication unit. By applying the above technical scheme, theuser can directly use the control terminal to control the power supply of the electric equipment and realize complete closing and opening of the electric equipment by disconnecting or connecting theelectric equipment and the power supply. Compared with the prior art, by applying the technical scheme provided by the request, optimum control of the power dissipation of the electric equipment can be realized and potential electric safety hazards of the electric equipment can be reduced on the premise of not needing the user to plug and unplug the power supply of the electric equipment manually.

The invention relates to the technical field of heat diffusion of cables, and discloses a cable cooling device with an overheat alarming function, which comprises a hoop sleeving and fixed on the outer skin of the cable in a surrounding mode. Hoop assemblies are joined through connection bolts to form the hoop; cooling fins are arranged outside at least one hoop assembly and a cooler bracket is connected; the inner space of the cooler bracket is provided with cooling fans; the cooling fans comprise an air suction fan and an air supply fan arranged at two ends of the cooler bracket respectively; the cooler bracket body is internally provided with a power supply mounting groove and a temperature monitoring module mounting groove, a power supply and a temperature monitoring module are mounted respectively, the temperature monitoring module is connected with the cooling fan and a sound-light alarm through wires, and the cooling fans and the sound-light alarm are started respectively according to detected temperature conditions. The device of the invention is designed specially for the cable, overheat aging of the cable can be slowed down effectively through cooling the cable, and the cable and the connection device can be prevented from being burnt down timely through the sound-light alarming.

The invention provides a building power safety identification method based on cusum algorithm, which comprises the following steps: obtaining a predetermined current load curve of a building in a predefined time period; according to cusum algorithm, the abrupt change point of current load curve is analyzed to find out the abrupt change point of current load value. If the point at which the currentload value changes suddenly is a working day, the current load value of the point is compared with a preset first warning threshold value, and when the current load value is greater than or equal tothe first warning threshold value, the safety warning information is sent to a predetermined terminal; if the point at which the current load value changes suddenly is a rest day, the current load value of the point is compared with a preset second warning threshold value, and when the current load value is greater than or equal to the preset second warning threshold value, the safety warning information is transmitted to a preset terminal. The invention can improve the maintenance efficiency of the power failure and reduce the hidden trouble of the power safety.

The invention discloses a salvaged object transferring device which comprises a main body cross beam, a shaft sleeve, a transferring conveyor belt and a conveying shaft. A supporting clamping plate isconnected to the lower portion of the left end of the main body cross beam, and a fixing bearing seat is arranged in the supporting clamping plate. A limiting ring is arranged on the right side of the fixing bearing seat, and a power shaft is arranged in the shaft sleeve. A connecting seat is arranged on the right side of the supporting clamping plate, and a built-in gear is arranged in the leftend of a braking disc. A driving gear and a transmission gear are arranged in the built-in gear. According to the salvaged object transferring device, compared with an existing common transferring device, under the premise that the using effect of equipment is ensured, internal structures are reduced as far as possible, the whole device is simpler in structure, operating is easier, original electric braking is abandoned, power is provided for the whole equipment through hydraulic power, energy is saved while electricity utilization potential safety hazards are reduced, and using demands of people are effectively met.

The invention provides a storage box assembly. The storage box assembly comprises a storage box (21), wherein the storage box (21) is of a hollow cuboid structure, one side of the storage box (21) is an open surface, and other sides of the storage box (21) are closed surfaces. The storage box (21) is made of plastic. The storage box assembly further comprises a storage box door (3) which can close and open the open surface and is of a hollow structure. According to the storage box assembly, the heat preservation effect can be effectively enhanced, and losses of heat energy or cold energy in the box can be effectively reduced. The invention further relates to a foaming box comprising the storage box assembly and an intelligent distribution cabinet.

The invention relates to a plug socket, and particularly relates to an anti-drop single-jack plug socket. The anti-drop single-jack plug socket comprises a plug and a socket, wherein the plug comprises an insulation base, an insertion column arranged on the insulation base and an insertion piece arranged at the periphery of the insertion column, a clearance is reserved between the insertion column and the insertion piece, the socket is provided with jacks, the insulation base is provided with clamping portions, the periphery of each jack is provided with fixing seats, and the plug and the socket are clamped into an integral whole through the clamping portions and the fixing seats. The anti-drop single-jack plug socket is simple in structure, small in plug size and small in occupied space, reduces the size of the socket, saves materials, and reduces the production cost. Meanwhile, the plug and the socket are firmly connected and not easy to separate, the clamping portions are enabled to be clamped into clamping slots by only rotating a rotating base by a certain angle, and the plug and the socket are not separated by the action of an external force, thereby reducing potential safety hazards in power utilization.

The invention relates to a self-tightening two-pin plug, and the plug comprises a shell which is provided with two opposite plugging grooves; inserting pieces which are partially inserted into the corresponding inserting grooves, wherein the inserting parts and the wiring parts are formed at the two end parts of the inserting pieces; insulating pieces arranged on the inserting pieces and positioned in the inserting grooves; and an elastic piece connected between the two insulating pieces in a supporting manner, positioned in the shell and applying the elastic force on the two inserting piecesto move towards the directions far away from each other. An adjusting gap is formed between the inserting grooves and the inserting sheets, so that the two inserting sheets are obliquely arranged in amanner that the two wiring parts are far away from each other under the elastic action of the elastic piece. According to the self-tightening type two-pin plug, when the elasticity of the reeds in the jacks disappears and the insertion pieces cannot be clamped, the insertion pieces are inclined under the elastic action of the elastic pieces, so that the connection tightness between the insertionpieces and the reeds can be improved, and the self-tightening function is achieved, and accordingly the potential safety hazards, such as electric sparks caused by virtual connection, etc., are reduced.

The invention discloses an on-site power utilization information acquisition system of a high-voltage user based on Internet+. The system comprises inspection user terminals, an input module, a querymodule, a user information server, an on-site inspection state server and a control background. The input module and the query module are installed in the inspection user terminals and used for inputting user information and inspection information, and the query module is used for querying information of a target user; the inspection user terminals are connected with the user information server and the on-site inspection state server, the user information server is in one-to-one correspondence with the on-site inspection state server, and the information is in one-to-one correspondence with users; and the control background is connected with each inspection user terminal so as to count off-factory inspection completion conditions of each inspector.

The invention discloses a digital dimming control circuit, a digital dimming control device and a digital dimmer. The circuit is characterized in that: a touch signal is generated by a control assembly according to user operation; a wireless communication control circuit generates a first control signal and a first wireless communication signal according to the touch signal, and generates a second control signal according to a second wireless communication signal sent by terminal equipment; a digital potentiometer circuit generates a first dimming control signal according to the first control signal and generates a second dimming control signal according to the second control signal; and a dimming circuit generates a dimming signal according to the first dimming control signal or the second dimming control signal so as to dim a lighting load. The digital dimming control circuit can carry out on-site dimming and remote intelligent dimming on the lighting load in a compatible mode, and can report dimming position information in real time, so that a user can know the lighting condition synchronously and timely, energy waste is effectively avoided, dimming is convenient and fast, and potential safety hazards of electricity utilization are reduced; and the consistency of manual mechanical dimming and software APP dimming can be achieved, and the circuit structure is simple.

The invention relates to a plug-socket unit, especially to an anti-shedding power plug-socket unit comprising a plug and a socket. The plug contains an insulating seat and plugging sheets arranged on the insulating seat. A plurality of jack groups corresponding to the plugging sheets are arranged in the socket; and fixation seats around all jack groups are arranged at the socket. A moving seat that is clamped with the fixation seat to fix the plug at the socket is arranged on the insulating seat. According to the invention, the unit with a simple structure is practical and convenient. When the plug is plugged to the socket, the rotation seat is rotated at a certain angle and thus a clamping part is clamped into a clamp groove, so that the plug and the socket are fixedly connected without being separated by the external force and thus the potential safety hazard can be reduced. Meanwhile, a power switch is arranged on the socket and thus electrification of each socket can be controlled separately to eliminate the influence on normal electrification of other plugs, thereby substantially improving the safety of the unit.

The invention provides a heating air furnace. The heating air furnace comprises a furnace body, at least two air supply pipes, a partition plate, an air conveying mechanism and a supporting device, wherein the furnace body is hollow inside and the two ends of the furnace body are closed; the furnace body is detachably arranged on the supporting device; the partition plate is arranged in the furnace body and divides the interior of the furnace body into a combustion chamber and an air collecting chamber, the air collecting chamber is close to the first end of the furnace body, an air inlet communicating with the air collecting chamber is formed in the first end of the furnace body, and the air inlet is connected with an air supply device for conveying compressed air into the air collectingchamber; each air supply pipe is partially arranged outside the furnace body, and each air supply pipe penetrates through the second end of the furnace body and the partition plate and communicates with the air collecting chamber; a material conveying opening and a discharging opening are formed in the positions, corresponding to the combustion chamber, of the furnace body; and the air conveying mechanism is arranged at the position, corresponding to the combustion chamber, of the furnace body so as to convey air into the combustion chamber. According to the heating air furnace, the air supplypipes convey hot air to a to-be-heated area, so that the temperature of the to-be-heated area is increased, electric heating is not needed, energy is saved, consumption is reduced, the potential safety hazard of electricity utilization is reduced, and the application range is wide.