73results about How to "There will be no safety accidents" patented technology

The invention relates to a charking hot water energy conservation stove, mainly composed of a shell, a heat insulation layer, a fireproof layer, a water case, a heat exchanger and a circulating pipe, wherein the heat exchanger separated from the heat insulation layer by a gap, the water case and a connecting pipe are mounted in the cavity of the heat insulation layer; according to the benefit of the invention, high-temperature waste flame and high-temperature waste smoke are contacted with the heat exchanger, the water case and the connecting pipe between the heat exchanger and the water case at first time in a first space; heat exchange efficiency can be increased greatly; a plenty of hot water and boiled water can be generated by dint of the afterheat; a plenty of steam also can be generated and is used for steaming buns, boiling rice and steaming food; afterheat hot water, the boiled water and steam do not have pressure; therefore, any safety accidents cannot be caused no matter any operations; the use operation of the invention is very simple; when functions are changed, any switches and valves are not operated; and the charking hot water energy conservation stove is characterized by convenient use.

The invention relates to a method for controlling an upwarp end at the time of wide and thick steel plate rolling, in particular to a method for controlling the upwarp end when a steel plate which has yield strength greater than 500 Mpa and thickness greater than 49 mm is rolled, and belongs to the field of steel rolling. According to the method, the steel plate is rolled in a controlled mode; in a second stage of precision rolling, the holding thickness is 1.5 to 3 times that of a finished steel plate; the precision rolling process is conducted for 3-5 times; before the precision rolling process is conducted for the last time, the steel plate is manually swung on a roller bed for holding for 10-35 seconds; then, the precision rolling process is conducted for the last time. By the adoption of the method, the upwarp end which appears when the steel plate which has the yield strength greater than 500 Mpa and the thickness greater than 49 mm is rolled can be eliminated, the effect that the final flatness of the steel plate meets operating requirements is ensured, the adoption of the method does not affect the mechanical property of the steel plate either, and no safety accident of equipment occurs.

The invention discloses a rotating joint, a loading arm with the rotating joint and loading equipment with the loading arm. A plurality of radial bearings (5) and/or thrust bearings (4) are installed between a rotating core (3) of the rotating joint (12) and a shell (2). The rotating joint (12) is arranged at the lower end of an inner revolving arm (13) of the loading arm. One end of an outer revolving pipeline (16) is connected with the inner revolving arm (13) through a rotating unit (15). A bearing (24) of the loading equipment is connected with a three-way joint (20) through a shaft (29). A rapid joint (25) is connected with a movable pipeline (17). The loading equipment can be rotated at will in the vertical direction and the horizontal direction through the rotating joint (12) and the rotating unit (15) formed by the rotating joint (12), the rapid joint (25) can be flexibly adjusted to the needed loading position, and the loading equipment is high in pressure resistance, safe, reliable and long in service life.

The invention discloses a quantitative racking machine of biscuits, belonging to the machinery field of food racking. The existing biscuit racking operation is manually finished by workers. The quantitative racking machine comprises a rack, an electric control box, a motor, a power transmission mechanism, a feeding mechanism, a racking mechanism, a packaging mechanism and a safety security device, wherein the electric control box, the motor, the power transmission mechanism and the packaging mechanism are respectively installed on the rack; the racking mechanism installed on the rack is positioned on the upper part of the packaging mechanism and is matched with the packaging mechanism; the feeding mechanism installed on the rack is positioned at one end of the racking mechanism and is matched with the racking mechanism; the power transmission mechanism transmits power generated by the motor to the racking mechanism and the packaging mechanism; and the safety security device positioned at the other end of the racking mechanism is installed on the rack. The quantitative racking machine is used for quantitatively racking biscuits, the working efficiency for racking the biscuits can be greatly improved by the machine, and the number of biscuit racked in each machine is the same. The quantitative racking machine conforms to the food hygienic standard.

The invention discloses a preparation method of 4-methylcatechol. The method comprises the following steps: (a) adding dimethoxybenzene and paraformaldehyde to an organic solvent, dropwise adding concentrated hydrochloric acid at minus 5 to 10 DEG C, so as to obtain 4-chloromethyl dimethoxybenzene; (b) firstly, adding the 4-chloromethyl dimethoxybenzene to an alcohol solvent, adding zinc powder and ammonium salt, heating and refluxing to generate the 4-chloromethyl dimethoxybenzene in a reduction manner; (c) mixing the 4-chloromethyl dimethoxybenzene, a hydrogen bromide aqueous solution and/or added cosolvent, warming and refluxing to obtain 4-methylcatechol. By adopting the method, the dimethoxybenzene is taken as a raw material; 4-methylcatechol is synthetized by three steps of chloromethylation, reduction and demethylation. The method has the characteristics of being high in yield, simple in steps, available in raw materials, mild in reaction condition, fewer in three wastes, low in production cost, simple in post-treatment and the like, and has good industrial application prospect.

The invention relates to a multifunctional charking energy conservation stove, mainly composed of a shell, a heat insulation layer, a fireproof core, a water case, a heat exchanger and a circulating pipe, wherein the fireproof core separated from the heat insulation layer by a gap, the heat exchanger, a second fireproof core, the water case and a connecting pipe are mounted in the cavity of the heat insulation layer; according to the invention, when cooling and frying are processed normally by a boiler, a plenty of hot water and boiled water can be generated by dint of afterheat; a plenty of steam can be generated and is used for steaming buns, boiling rice and steaming food; the heat exchanger, the water case and the connecting pipe between the heat exchanger and the water case not only are functional structure components, but also are large-area heat exchangers; therefore, a plenty of raw material is saved; and very good heat exchange effect is acquired; and a novel structure designed by the invention cannot cause any safety accidents not matter any operations.

The invention relates to moxa stick production equipment, in particular to stamp pestle equipment for moxa stick production. The stamp pestle equipment for the moxa stick production is capable of automatically turning over folium artemisiae argyi for being mashed. The stamp pestle equipment for the moxa stick production comprises a support, a stone mortar, a discharging device, a mashing device, aturning device and the like, wherein the upper portion of the support is provided with the discharging device for discharging in a sliding mode, and the right side of the stone mortar is provided with the mashing device for mashing wormwood in a swinging mode. According to the equipment, a stamp pestle is driven by a speed reduction motor to rotate up and down to mash the folium artemisiae argyi,manual operation is not needed, and manpower is saved; the folium artemisiae argyi can be continuously turned over through a rotating rod when the folium artemisiae argyi is mashed, and manual turning-over is replaced, so that safety accidents are avoided, an arc-shaped baffle can support an arc-shaped baffle, the arc-shaped baffle is prevented from being knocked and damaged, and the service lifeof the equipment is prolonged.

A multiuse oil gas energy-saving stove mainly comprises a housing, a heat insulation layer, a fireproof core and a water tank. The multiuse oil gas energy-saving stove is characterized in that the water tank is a functional structure part, and also is a large-area heat exchanger, so a large amount of a raw material can be saved, and a very good practical effect can be possessed. While normal diner cooking and dish frying are carried out through using a boiler in the invention, waste water can be utilized to generate a large amount of hot water and a large amount of boiled water, and also generate a large amount of steam to steam buns, rice and dishes, and the boiler can be used as a soup stock boiler for meat and bone boiling. The waste heat hot water, the boiled water and the steam have no pressures, so no matter how to operate, there will be no safety accidents. The body of the stove and the water tank are arranged in an integrated manner, so a kitchen can be neat and beautiful. The multiuse oil gas energy-saving stove has the advantages of low system manufacturing cost, long life, high reliability, simple production technology, large-scale industrialized production, and wide market prospect.

The invention discloses a permanent magnet-assisted starting leakage protector, and belongs to the field of leakage protectors. The permanent magnet-assisted starting leakage protector comprises a support, an electromagnet, a permanent magnet, a swing plate, a return component, a stationary contact component, a moving contact component, and a leakage detection circuit which controls the switch-on and switch-off of the electromagnet, wherein the electromagnet and the support are arranged together; the moving contact component and one end of the swing plate are arranged together; the other end of the swing plate and the return component are arranged together; the return component and the support are arranged together; the permanent magnet, and the leakage detection circuit which controls the switch-on and switch-off of the electromagnet are arranged in the support respectively; the electromagnet comprises a plunger, a fixed iron core, a coil frame and a coil assembly; the coil assembly and the coil frame are arranged together; the plunger and the fixed iron core are arranged together with the coil frame respectively; the permanent magnet is in contact with the outer end of the plunger; and the return component comprises a return spring. The permanent magnet-assisted starting leakage protector can protect an electric appliance from being burnt out and protect a user from getting an electric shock.

The invention provides a high-voltage power distribution cabinet with good heat dissipation performance, belongs to the technical field of high-voltage power distribution cabinets, and aims to solve the problem that the service life of electronic components in the high-voltage power distribution cabinet is shortened due to the fact that heat dissipation holes in an existing high-voltage power distribution cabinet are easily blocked by external flying dust. The cabinet comprises a cabinet body, the top of the cabinet body is provided with a rain shielding mechanism, the right end face of the cabinet body is fixedly provided with a labor protection storage mechanism and a control box, and the left end face of the cabinet body is provided with a cleaning mechanism at the heat dissipation holes. After a human body induction switch induces a human body, a cleaning motor is started through a control box, then a second driving belt wheel is driven to rotate through a rotating shaft of the cleaning motor, then a second driven belt wheel is driven to rotate through a belt, and then a cleaning brush is driven through the upper end of a connecting rod to do up-down reciprocating cleaning motion at heat dissipation holes formed in the rear end face of the cabinet body. Therefore, the heat dissipation effect in the high-voltage power distribution cabinet is not affected, and the service life of electronic components in the high-voltage power distribution cabinet is prolonged.

The invention discloses an indoor unit for an embedded air conditioner. The indoor unit comprises an indoor unit main body, a panel body, an air-inlet grille and a fan; a fan protector is arranged between the fan and the panel body; the fan protector is provided with a plurality of ventilating holes. The invention also discloses an embedded air conditioner. The embedded air conditioner comprises the indoor unit for the embedded air conditioner. The fan protector is arranged between the fan and the panel body of the indoor unit for the embedded air conditioner, so that the panel body or the air-inlet grille can be detached under the condition that the indoor unit of the embedded air conditioner does not stop, the fan is protected by the fan protector in the whole process, foreign bodies cannot enter the fan, the fan cannot be damaged, safety accidents are avoided, the service life of the fan is prolonged and the safety is improved; moreover, the fan protector is provided with the ventilating holes, so that the air inlet volume of the fan is ensured, and the normal work of the indoor unit for the embedded air conditioner is ensured further.

The invention relates to a safe protection supporting column of a lifting platform. The column overcomes deficiencies in the prior art. According to the technical scheme, the safe protection supporting column comprises protection pieces, a column body, a bottom fixing piece and a supporting column body, the lower portion of the column body is fixedly installed on the ground through the bottom fixing piece, and a vertical cavity is formed in the column body; the supporting column body is inserted in the vertical cavity and is in clearance fit with the vertical cavity, the top end of the supporting body is connected with the bottom of the lifting platform, and several ventholes are formed in the column body and communicated with the cavity; a permanent magnet wrapping an elastic cushion is arranged at the bottom of the supporting body, a buffer spring is arranged on the position, corresponding to the supporting column body, at the bottom of the cavity, and an elastic cushion is arrangedat the top end of the buffer spring; an annular installing groove is formed in the top of the supporting column body, an induction coil is arranged in the annular installing groove, and the output endof the induction coil penetrates through the column body and is connected with an electromagnet; the electromagnet and the protection pieces are fixed to the column body and connected, and the protection pieces are aligned with the ventholes.

The invention provides a machine gun mounting and driving structure. The machine gun mounting and driving structure comprises a machine gun hanging rack, a safety driving mechanism and a trigger driving mechanism. According to the machine gun hanging rack, a front bolt, a middle bolt and a tail spacing frame are adopted to clamp a machine gun, so that the structure is simple and reliable, and themachine gun can be easily detached or fixed on an unmanned aerial vehicle. The safety driving mechanism can remotely control stretching and retracting of a linear motor so as to operate and control asafety of the machine gun mounted on the unmanned aerial vehicle, so that locking or unlocking of the machine gun is realized; and the safety driving mechanism is simple to operate, accurate in travelpositioning, and rapid in action and capable of improving operation safety when the machine gun is mounted on the unmanned aerial vehicle. The trigger driving mechanism can remotely control power-onand power-off of an electromagnet so as to operate and control a trigger of the machine gun mounted on the unmanned aerial vehicle, so that firing and fire holding of the machine gun can be realized;and meanwhile operation and control are simple, and prevention measures for preventing jamming are provided so that safety accidents of difficulties in firing and fire holding are avoided, in this way, high reliability and safety can be achieved.

The invention relates to a multifunctional safety device for a car seat. The device comprises a retractor, a safety belt movably sleeved and equipped with a first fastener, a first fastener groove arranged at the joint of a car seat back and a seat cushion and clamped with the first fastener in a matched way when a passenger is in the sitting state, and a second fastener groove arranged at the bottom of the seat cushion or arranged to be close to the seat cushion and clamped with the first fastener in a matched way when the passenger is in the lying state or in the article storage process, wherein the length of the safety belt is defined in a way that the first fastener and the second fastener groove can be clamped in a matched way. The invention further discloses the car safety seat with the multifunctional safety device. Due to the adoption of the multifunctional safety device and the backseat with the multifunctional safety device, the structure is simple, the performance is excellent, and the passenger is more comfortable and safe when the passenger sits or lies; and in addition, the car seat space is effectively utilized, so that articles can be more stably stored. Meanwhile, the safety performance of the device is improved, the functions of the device are added, and the using effect of the device is better.

The invention relates to a preparation method of o-phenylenediamine. The preparation method comprises the following steps: esterifying phthalic acid with alcohol under the catalysis of acid to prepare phthalate, then introducing ammonia gas into an alcohol solvent to obtain phthalic diamide, and then reacting the phthalic diamide with hypohalite or halogen in an alkaline solution to prepare the o-phenylenediamine. Compared with the prior art, the method disclosed by the invention completely avoids a mixed acid nitration process, does not generate waste acid, also does not cause safety accidents during ammonolysis of o-chloronitrobenzene, and is safe, clean and efficient.

The invention relates to the technical field of motors, in particular to an external motor early-warning heat radiator. The external motor early-warning heat radiator comprises a rear motor end cover, a motor body, a front motor end cover, a base, a heat radiator body and an early warning device, wherein the early-warning device is arranged at the left end of the upper portion of the heat radiator body, the heat radiator body is tubular and sleeved on an outer casing of the motor body, and a plurality of support columns are arranged on the inner side of the heat radiator body and are fixed on the outer casing of the motor body by screws. The external motor early-warning heat radiator is simple in structure and low in cost, is convenient to mount and maintain since the heat radiator body and the early-warning device are arranged on the outer casing of the motor, and is convenient to operate and fine in effect.

The invention discloses a detector assembly dismounting control system and a corresponding control method, and further provides a nuclear reactor detector assembly dismounting system composed of a nuclear reactor detector assembly dismounting device and a corresponding nuclear reactor detector assembly dismounting control system. The nuclear reactor detector assembly dismounting device is used forpulling out the high-radioactivity detector assembly at the end of the service life from a channel of an upper reactor internals guide structure, placing the high-radioactivity detector assembly intoa special container after complete continuous actions such as shielding, shearing and winding, and transferring the high-radioactivity detector assembly to a specified treatment place. The purposes of continuous operation, safety and high efficiency are achieved. The corresponding detector assembly dismounting control system can achieve control operations such as positioning, grabbing, shearing (shielding), winding, transferring and the like.

The invention relates to a vehicle cover device, in particular to an ascending-free manual truck tarpaulin cover reel device. An universal transmission device comprises a single cross shaft universalcoupling including a first cross shaft universal joint, or a double cross shaft universal coupling including the first cross shaft universal joint and a second cross shaft universal joint, or a movable fastening assembly including a first arc segment connector and a second arc segment connector; a flexible cover tarpaulin is arranged directly behind a headstock positioned at the front part of an unenclosed dropside truck and internally provided with a driving operating room, and the upper end of a front transverse chamber wall arranged at the front end of a carriage connected with the headstock; and the straight segment edge of the front end of the flexible cover tarpaulin is fixed on a tarpaulin retracting shaft; one end of the tarpaulin retracting shaft is movably connected to the top ends of first drive rods by universal transmission devices. The device is reasonable in structure, is simplified, is low in purchase cost, saves time and labor in the process of manual operation, and ismore convenient to use.

The invention relates to a packing machine. The packing machine comprises a stock hopper, a feed opening, an overhaul gate plate, a feeder, a feeder support, a charging device, an electromagnetic connecting box, a weighing and band clamping device, a bag sewing device, a belt conveyor and a steel structure support. The feed opening is fixedly connected to the lower portion of the stock hopper. The overhaul gate plate is arranged in the middle of the feed opening. The feeder is arranged under the feed opening. The charging device is fixedly connected to the lower portion of the feeder. A material cutting device is arranged at the right end of the feeder and the right end of the charging device. The steel structure support is fixedly connected to the lower portion of the material cutting device. The electromagnetic connecting box is arranged on the upper side of the left end of the steel structure support. The belt conveyor is arranged on the steel structure support. The bag sewing device is arranged on the belt conveyor. An emergency stop switch is arranged in the electromagnetic connecting box. The packing machine is fixedly connected to a vehicle body. The packing machine has the beneficial effects that the vehicle body is arranged, the structure is simple, application is convenient and rapid, and the packing machine is easy to carry; and the emergency stop switch is arranged in the electromagnetic connecting box, safety accidents do not occur during application, the safety is improved, the work efficiency is high, and the packing machine is easy to popularize.

The invention discloses a water tank type wire drawing machine capable of being remotely monitored in real time and a monitoring method of the water tank type wire drawing machine, relates to the technical field of water tank type wire drawing machines, and aims to solve the problems that an existing water tank type wire drawing machine needs to be observed by personnel at a short distance, and metal wires cooled by water are not wiped dry in time, so that observation is inconvenient, and the metal wires are easy to rust during storage. A transverse frame is arranged at the upper ends of abutting columns, a water tank is arranged on one side of the transverse frame, a camera mechanism is arranged above the water tank, a wiping seat is arranged on one side of the water tank, a lower round box is arranged above the wiping seat, an upper round box is arranged at the upper end of the lower round box, and a standby groove is formed in the front surface of the wiping seat. A camera shooting plate is arranged at the lower end of the camera mechanism, a splash-proof plate is arranged on one side of the camera shooting plate, a first drawing head is arranged in the water tank, a second drawing head is arranged on one side of the first drawing head, and a wiring frame is arranged on one side of the wiping seat.