61results about How to "Meet the requirements of safety regulations" patented technology

The invention belongs to the field of energy and coal mine safety, and particularly relates to a coal mine down-hole drilling penetration improvement method based on a controllable shock wave technology. The method aims at solving the problems of high labor intensity and low safety of an existing gas treatment mode. Controllable shock wave generation equipment is pushed to the interior of a drilling hole, and after a hole opening sealing device is installed at a hole opening of the drilling hole, water is injected to the drilling hole; after the drilling hole is fully filled with the water, operation is conducted segment by segment, the middle of each operation segment is used as an operation point of shock waves, and repeated impact is conducted on each operation point multiple times. Under the effect of the injected water in the hole, the shock wave generation equipment does not need to work under the environment with explosive gas, and the shock waves are also efficiently coupled toa coal bed.

The transformer is composed of an iron core set, a base, at least a simplex of wire winding, and at least a thin sheet. Conducting wire is wrapped on the simplex. The at least one simplex of wire winding and the at least one thin sheet are sheathed to the base.

The invention relates to a control method of a light emitting diode (LED) constant current power supply and an LED constant current power supply circuit. In the invention, the control method of the LED constant current power supply is as follows: extracting an input voltage signal, an input current signal and a feedback voltage signal, then inputting the signals to a control circuit; converting the acquired signals into digital signals by the control circuit, adding a frequency jitter signal; carrying out logical operation to obtain a pulse signal for controlling a switch to work; and isolating the high-frequency alternative current by the high-frequency transformer so as to perform constant current driving on the LED. In the invention, the LED constant current power supply comprises a control circuit, a power supply unit, an input voltage detection unit, an output frequency jitter control unit, an output voltage detection unit, a primary current detection unit, a switch S1, a high frequency transformer and an output filter unit. The circuit of the invention can automatically adapt to the change of load LEDs and eliminate the impact of the circuit parameter change on working condition, thereby ensuring long-term stable work of the circuit.

The invention relates to an air furnace blowing coom grinder system and smoke non dehydraulization self circulation method, which comprises feeding inertia gas to the enclosed coal feeder, heating up the grinder exhaust smoke, heating up the coal powder inertia, preventing the self combustion of the coal powder, feeding inertia to the cloth bag powder collector, preventing the leaking of air to the system, reducing the content of oxygen, sending it back to the grinder system for heating up, to achieve recirculation. It is economical in investment, low in energy consumption, and making use of the waste for making oxygen. It has more extensive use compared with existing technology.

The invention discloses a high-power LED bulb with electric shock preventing performance, high safety and long service life. The high-power LED bulb comprises a bulb cap (1), an insulating casing (2), an insulating light-transmitting front bulb shade (3), a light source plate (4) integrated with an LED chip, a radiator (5), a power supply drive component (6) and a thermo-sensitive switch (8), wherein the thermo-sensitive switch (8) is used for cutting off a power supply when the bulb is under high temperature; the front end of the insulating casing (2) is fixedly connected with the insulating light-transmitting front bulb shade (3), so as to form an accommodating cavity; all the light source plate (4), the radiator (5), the power supply drive component (6) and the thermo-sensitive switch (8) are arranged in the accommodating cavity; the radiator (5) comprises a baseplate (50); the bottom surface of the baseplate (50) is a plane surface part tightly clung to the light source plate (4); a heat radiation pillar (51) is arranged on the top surface of the baseplate (50); a lug boss (52) or sunken part which is used for enlarging the radiation area is arranged on the top surface of the baseplate (50); and a plurality of heat radiation grooves (21) communicated with the inner cavity of the insulating casing (2) are formed on the side wall of the insulating casing (2). The high-power LED bulb can be extensively applied to the field of LED illumination.

The invention discloses a damming method for a tailing dam and relates to a method for directly embanking the tailing dam by adopting fine-grain tailings. The method is characterized in that a die bag filled with tailing sand is adopted for embanking a dam body during the damming process. In the damming method for the tailing dam, the die bag method is adopted for stacking the dam by adopting the tailings, the median grain diameter of the tailings can be fully utilized, and the properties of being water permeable and non-slurry permeable of the die bag are utilized, thereby having the advantages of being fast in drainage and consolidation speed and being conductive to fast damming, and effectively solving the difficult points in stacking of the dam by adopting finer grains; furthermore, the process is mature, the operation is simple, the damming can be performed while performing production, and the production is not affected, thereby being a big progress in comparison with the traditional upstream method for damming.

The present invention discloses a controllable LED grouping system which comprises a controllable LED device and a control device. The controllable LED device is used for obtaining the group of controllable LED grouping and carried out corresponding response when the control information comprising group control information sent by the control device is received, and the control device is used for providing control information comprising the group control for controlling the functions of controllable LEDs. The invention also discloses a controllable LED grouping method. Through obtaining the capacitance value of an electrode in a grouping identification module, according to the relation comparison analysis between the capacitance value of a preset electrode and the group, the corresponding groups of the controllable LEDs are obtained, thus the controllable LEDs are subjected to group control. The position or angle of the grouping identification layer in the grouping identification module can be adjusted at any time according to needs, further the group of the controllable LEDs can be adjusted at any time, the additional reservation of the installation position of a grouping component is not needed, the grouping is flexible, the grouping identification module and the internal part has no electrical connection, the isolation intensity is high, the cost is low, and the promotion is easy.

The invention discloses a cage-locking, cage-stabilizing and overwinding and overfalling brake device of a skip of a cage of a vertical shaft. The brake device consists of a brake oil cylinder (1), abrake plate and friction lining (2), a brake-releasing spring (3), a bearing pin (4), a supporting seat (5), a mounting beam (6), and a hydraulic servo system and electric control system (7). The brake device is characterized in that: the brake oil cylinder (1) is arranged on the supporting seat (5) by a pin shaft; the brake plate and friction lining (2), the brake-releasing spring (3) and the bearing pin(4) are arranged on the supporting seat(5); and the supporting seat (5) is in welding connection or bolted connection with the mounting beam (6). Due to the adoption of the structure of the bearing pin, the brake oil cylinder is not the directly operated type, and the braking force is not transferred to a piston, so that the oil leakage problem (the prior hydraulic disc type brake is the directly operated type, and the braking force is directly transferred to the piston.) is thoroughly solved. The operating principle of the brake device comprises that: when the cage stops at the mouthor bottom of a mine, the brake oil cylinder drives the brake plate and friction lining to clip the brake plate of the cage, so that the cage is stabilized by the friction force; and when the cage or skip is overwound or overfallen, the brake oil cylinder can clip the brake block in a mode of changing pressure, so that the cage or skip can be braked in the overwinding or overfalling range, and thebraking force meets the requirements of mine safety rules.

The invention relates to a hidden protective lock and a power supply device with a hidden protective lock. The hidden protective lock comprises a lock base, a sliding lock plate and a lock pin assembly, wherein a strip-shaped through hole is formed in the sliding lock plate, the cross section of the strip-shaped through hole comprises two end parts and a rectangular part, and in the direction vertical to the sliding direction of the sliding lock plate, the maximum height of each of the two end parts is larger than that of the rectangular part; the lock pin assembly comprises a lock pin seat, a lock pin and a spring, wherein the lock pin seat is arranged on the lock seat, a first section and a second section are arranged on the first end of the lock pin, wherein the width of cross section of the first section is smaller than that of the rectangular part, and the shape of the cross section is adaptive to that of each of the two end parts, and when the second section is clamped in one of the two end parts, the sliding block plate is locked; and the power supply device is provided with the hidden protective lock. The hidden protective lock is arranged in a device needing to be protected, and non-professionals can not operate the hidden protective lock without operation instructions.

The invention discloses a multi-aspect luminous high-power LED (light emitting diode) lamp bulb which can avoid electric shock danger, has good safety and excellent heat dissipation effect. The lamp bulb provided by the invention comprises a lamp cap (1), an insulating transmitting shell (2), a front end cover (3), a rear end cover (4), light source power panels (5) and a heat dissipation fan (6), wherein the insulating transmitting shell (2) is provided with an inner cavity; the light source power panels (5) are integrated with LED chips; the front end and rear end of the insulating transmitting shell (2) are respectively fixedly connected with the front part of the front end cover (3) and the front part of the rear end cover (4); the rear part of the rear end cover (4) is fixedly connected with the lamp cap (1); the inner wall of the insulating transmitting shell (2) is provided with a plurality of light source power panel slots (21) which extend axially; the light source power panels (5) are inserted in the light source power panel slots (21); the heat dissipation fan (6) is fixed in the inner cavity of the insulating transmitting shell (2); the front end cover (3) and the rear end cover (4) are all provided with air vents (90); and the light source power panels (5) are electrically connected with the lamp cap (1) through leads. The multi-aspect luminous high-power LED lamp bulb can be widely applied to the field of LED illuminating.

The invention discloses an ultrahigh-power LED bulb replacing a gas discharge lamp, which comprises a radiator (1), a driving circuit board component (3), a top cover (4), a lamp holder connector (5), an LED light source component (6), a light-transmission protective cover (7) and an E40 lamp holder (10). The top cover (4) is fixedly connected with the radiator (1), a cavity area (40) is formed above the radiator (1), the driving circuit board component (3) is positioned in the cavity area (40), the top cover (4) is fixedly connected with the radiator (1), the lamp holder connector (5) is fixedly connected with the lamp holder (10) through a threaded connecting portion (51) and fixedly connected with the top cover (4) through a screw, the lamp holder connector (5) is integrally conical and gradually enlarged from the lamp holder (10) to the radiator (1) after being fixedly connected with the top cover (4), the side wall of the lamp holder connector (5) is provided with a vent hole (52) so that the cavity area (40) is communicated with the outside, and the light-transmission protective cover (7) is fixedly connected with the radiator (1). The ultrahigh-power LED bulb can be applied to the field of LED lamps.

The invention provides an ED type combined resonance transformer. The ED type combined resonance transformer comprises a primary coil, a secondary coil, a primary framework and a secondary framework. The primary coil is provided with a wire spool protruding out of the upper surface of the primary framework. The wire spool is provided with two circles of winding grooves. The two opposite sides of the primary framework are provided with pin bases. The primary coil is wound in the two circles of winding grooves. The secondary framework is provided with a wire spool protruding out of the upper surface of the secondary framework, the wire spool is provided with two circles of winding grooves, the secondary coil is wound in the two circles of winding grooves of the wire spool on the secondary framework, the lower surface of the secondary framework is provided with a groove matched with the wire spool on the primary framework in shape, the groove is buckled on the wire spool of the primary framework, the center of the wire spool on the primary framework and the center of the wire spool on the secondary framework are provided with iron core holes, and the iron core holes are internally provided with iron cores. The ED type combined resonance transformer can meet the requirements for high voltage withstanding and long safety distance.

The invention discloses an anti-electric-shock safety protection door of a multifunctional socket. The safety protection door comprises a fixed frame, a sliding block capable of longitudinally sliding is arranged on the fixed frame, and an elastic element ejecting the sliding block forwards is arranged between the rear portion of the sliding block and the fixed frame. At ordinary times, an N electrode jack and an L electrode jack are closed by the sliding block under the action of elastic force of the elastic element; when the sliding block slides backwards, no barriers exist between the N electrode jack and a conducting metal plug bush or between the L electrode jack and the conducting metal plug bush. An E electrode stop dog is arranged on the rear portion of the sliding block and arranged below an E electrode jack and extends forwards into the E electrode jack, and a slope corresponding to the E electrode jack and inclining backwards is arranged on the upper surface of the E electrode stop dog. The anti-electric-shock safety protection door of the multifunctional socket is ingenious and reasonable in design; because a ground wire is optimally connected when the safety protection door is used, the safety protection door accords with requirements related to safety regulations; because the N electrode jack and the L electrode jack are automatically opened after the ground wire is connected, plugs can successfully enter the N electrode jack and the L electrode jack, and the safety protection door is safe and smooth to use.

The invention discloses a device internally including a plurality of isolated temperature control detection units. The device comprises a plurality of isolated temperature control detection units, a feedback signal selecting device, an output voltage control device, and a voltage adjuster. The isolated temperature control detection units are arranged at a plurality of positions, so as to conduct the temperature monitoring detection and integrate the monitored and detected temperature data with a signal, thereby enabling the signals of the isolated temperature control detection units, such as (T1) and (T2)...(TN), to be converted into output signals containing temperature information, such as (F1) and (F2)... (FN); the feedback signal selecting device is used for receiving the signals, (F1) and (F2)...(FN), which are output by the isolated temperature control detection units, and choosing a signal with the maximum temperature from the signals, such as (F1) and (F2)... (FN), to be output; the output voltage control device is used for receiving the signal with maximum temperature output by the signal selecting device and a voltage feedback signal, and outputting a control signal; and the voltage adjuster is used for receiving the control signal output by the output voltage control device and outputting a voltage used for controlling the speed of the fan.

The invention relates to the technical field of a material, and particularly relates to a plastic as well as a production method and a shell thereof, which can be used for improving the flame-retardance performance and heat resistance performance of the plastic. The plastic comprises the following raw materials in parts by weight: 45-55 parts of acrylonitrile-butadiene-styrene copolymer, 28-35 parts of styrene-acrylonitrile copolymer, 15-20 parts of flame-retardant system, 3-5 parts of anti-oxidization auxiliaries, and 1-2 parts of compatibilizer, wherein the flame-retardant system comprises a main flame retardant and a compound flame retardant at the weight ratio of (1.8-3.0):1, and the anti-oxidization auxiliaries comprise tetra(2,4-ditertbutylphenyl)-4,4'-biphenyl bisphosphite and hindered phenol antioxidants at the weight ratio of (0.5-2.5):1.

The invention provides an intelligent robot. The robot comprises a shell, a work module, walking modules, an energy module, a motor module and caterpillar bands, wherein an accommodation chamber is formed in the shell in a hollow mode; the work module is arranged on the bottom of the shell and is used for executing a work task; the walking modules are arranged on the two sides of the shell, each side of walking module includes a front support wheel, a rear support wheel and the caterpillar band, and the caterpillar band is wound and arranged with the front support wheel and the rear support wheel as two ends; the energy module is arranged in the accommodation chamber; the motor module is arranged in the accommodation chamber and includes a work motor driving the work module and a walking motor driving the walking modules; and the caterpillar bands have inner surfaces which are contacted with the support wheels and outer surfaces which are contacted with ground, the outer surfaces haveembossments, and the surfaces of the embossments are smooth. When the caterpillar-band intelligent robot works, lawn damages are decreased, a lawn is not easy to be torn and cylindrical embossments have a comb grass effect.

The invention provides a wood chipper which comprises a chipper body and a chip outlet which is arranged at the lower end of the chipper body and defined by an upper wall, a lower wall and two side walls, wherein at least one of the upper wall, lower wall and two side walls of the chip outlet is provided with a curved surface; and the curved surface comprises at least one high point, and the distance between the high point and the surface of the wall opposite to the curved surface is less than the maximum distance specified by the corresponding safety standard, and the curved surface also comprises at least one low point and the distance from the low point to the surface of the wall opposite to the curved surface is longer than the corresponding safety distance. According to the wood chipper, the design of the curved surface is adopted by the surface of the wall of the chip outlet, so that the size of the opening of the chip outlet meets the safety standard, and the area of the opening can be enlarged to a certain degree, thus the discharge efficiency of chip can be improved, and the working efficiency of the wood chipper is further increased.

The ore mountain hoisting plan comprises the motor and motor driven decelerator, satellite drive box and brake of the decelerator box, roller and parking safe brake. One end of the decelerator output shaft connects to the input shaft of the slow satellite drive box, the other end linking the quick satellite drive box input shaft, with the input and output shafts connected, output shaft of the quick drive box connecting with the input shaft of the quick gear box, slow gear box output gear of the slow gear box connecting to the roller together with the output shaft of the quick gear box output teeth, with the roller positioned by the roller support shaft. There are slow brake on the slow satellite drive box and quick brake on the quick satellite drive box.

The invention relates to the technical field of added fences for existing roads and bridges, in particular to a continuous prefabricated safety fence connecting method. The continuous prefabricated safety fence connecting method has the advantages that the geometric sizes of existing prefabricated fences are not changed, and existing safety specification requirements can be assuredly met by use effects of new fences; connection modes of the continuous prefabricated safety fence connecting method are mechanical connection modes for various units of the prefabricated fences by the aid of double-end lead screws, the units of the prefabricated fences of various sections can be organically connected with one another, accordingly, protection effects which are equally effective just like protection effects of existing fences can be realized, and merits of detachability and interchangeability of mechanical connection and connection firmness and reliability can be sufficiently embodied; more importantly, pavement destruction for manufacturing bases and mounting upright rods is omitted, characteristics of protection reliability, mounting convenience, detaching convenience, universality and interchangeability and reusability can be truly embodied, and accordingly the continuous prefabricated safety fence connecting method has a certain economic benefit and a high social benefit and is worthy of being popularized.

The invention relates to a self-reflection LED T8 straight tube lamp, which comprises a lamp tube, a lamp tube drive power supply, a first lamp tube end cover and a second lamp tube end cover installed at both ends of the lamp tube, and a light-transmitting cover is arranged on the lamp tube. A first conductive copper piece is provided on the end cover of the first lamp tube, and a second conductive copper piece is provided on the end cover of the second lamp tube; a reflective alloy plate is provided inside the lamp tube, and an FPC circuit is installed on the reflective alloy plate board, the LED light source is mounted on the FPC circuit board, and the first conductive pad and the second conductive pad are arranged on the FPC circuit board; The copper parts are connected, and the other end is electrically connected to the first conductive pad on the FPC circuit board, and the lamp tube driving power is placed in the first lamp tube end cover; the second conductive pad on the FPC circuit board is connected to the second The second conductive copper piece on the end cap of the lamp tube is connected. Through the invention, various performances of the product are further improved, the production cost is reduced, and energy-saving and environment-friendly green lighting is realized.

The invention discloses a photovoltaic inverter which comprises a flyback converter, an inverter circuit, an alternating voltage detection module and a control module. Specifically, the flyback converter firstly boosts the first direct current output by a photovoltaic module, so that the inverter circuit can invert the boosted second direct current and input the second direct current into an alternating current power grid. The flyback converter realizes multiplexing of the primary side main switch tube and the short circuit switch in the flyback converter, and when the AC voltage detection module detects that the AC power grid is disconnected, the control module sends a safety regulation closing instruction to control the short circuit switch to be closed so as to turn off the output voltage of each photovoltaic module, thereby meeting the requirements of safety regulations, and being simple in structure and low in cost. The invention further discloses a photovoltaic system which has the same beneficial effects as the photovoltaic inverter.

The invention discloses a photovoltaic module intelligent isolation switch, which relates to a photovoltaic circuit safety protection device. The photovoltaic module intelligent isolation switch comprises an MOS transistor, a current sensor, a mutation current threshold control module, an isolation switch control circuit, a wireless receiving module and a working power supply, wherein the source and the gate of the MOS transistor are both connected with the isolation switch control circuit; the working power supply is respectively connected with the mutation current threshold control module, the isolation switch control circuit and the wireless receiving module; the mutation current threshold control module is connected with the isolation switch control circuit; the mutation current threshold control module is also connected with the current sensor; and the current sensor is connected with a magnetic ring coupling coil sleeving a post-stage output wire. An effective safety protection device is provided for the existing photovoltaic power station safety change and later new power station building, safety of the photovoltaic power station is ensured, the stability is good, the reliability is high, the practicability is strong, and promotion and use are facilitated.

The invention relates to a POS machine security P I N input method based on a QT framework and a storage medium thereof, and the method comprises the steps: drawing an input box through a QLi neEd it control provided by the QT framework, and obtaining key input from an event node by a QWS service for updating the display of the input box; a special vppevent equipment node is set up and used for returning a specific value of the P I N input by a user; in the common input mode, user input is returned to the QT framework through the standard event node; in the P I N input mode, user input is returned to the security service through a special vppevent equipment node; the keypad keyboard driver is additionally provided with a P I N input mode switching interface; in the P I N input mode, the keypad driver judges a key value input by a user, and when the key value input by the user is a function key, the key value is synchronously sent to the event and the vppevent; according to the method and the system, the defect that application isolation cannot be realized by the QT standard input control is overcome, so that the PI data of a user can be processed by using the QT standard input control on a POS (Point Of Sale) on the premise of meeting the PC I safety specification requirement.

The invention discloses a monorail pulley unhooking system. In order to meet the safety specification requirement of a monorail pulley recreation facility and solve the problem of unhooking of a trolley in the running process, the invention relates to the trolley unhooking system. The system comprises a fixed pinching nozzle, a movable pinching nozzle, a driving mechanism and a tractor bearing body, the fixed pinching nozzle is installed at the left open end of the tractor bearing body, the driving mechanism is located in the tractor bearing body, the movable pinching nozzle and the fixed pinching nozzle form an inverted-U-shaped jaw, and the driving assembly is connected with the movable pinching nozzle. The purpose of unhooking in the running process of a slideway trolley can be achieved, when the trolley is separated from a traction cable during rail transfer sliding and enters the ascending section, a first chain rod and a second chain rod are driven through an air pressure push rod, the movable pinching nozzle gets close to the fixed pinching nozzle to reach the traction cable, the traction cable is pinched tightly, and the ascending state driven by the cable hanging is achieved.

The invention discloses a photovoltaic module intelligent isolation switch, which relates to a photovoltaic circuit safety protection device. The photovoltaic module intelligent isolation switch comprises an MOS transistor, a current sensor, a mutation current threshold control module, an isolation switch control circuit, a wireless receiving module and a working power supply, wherein the source and the gate of the MOS transistor are both connected with the isolation switch control circuit; the working power supply is respectively connected with the mutation current threshold control module, the isolation switch control circuit and the wireless receiving module; the mutation current threshold control module is connected with the isolation switch control circuit; the mutation current threshold control module is also connected with the current sensor; and the current sensor is connected with a magnetic ring coupling coil sleeving a post-stage output wire. An effective safety protection device is provided for the existing photovoltaic power station safety change and later new power station building, safety of the photovoltaic power station is ensured, the stability is good, the reliability is high, the practicability is strong, and promotion and use are facilitated.