40results about How to "Effective deceleration" patented technology

The invention relates to an intelligent speed-control blade type pipe cleaner which is mainly composed of a plurality of steel blades, a plurality of mileage wheels, a mandrel, a motor, a single-chipmicrocomputer, a drainage device and other components. A plurality of steel blades are designed, a plurality of blade layers are arranged around the mandrel, the blade layers are closely attached to apipe wall for scraping and cleaning a pipe under the preset pressure of springs, and blockage can be avoided through the retraction capacity of the blades under resistance; meanwhile, the mileage wheels are arranged around the mandrel and record displacement, the displacement is converted into speed signals through a speed sensor, the speed signals are transmitted to the single-chip microcomputer, the single-chip microcomputer controls the motor to act, the motor controls a drainage baffle to rotate, and therefore the front-back pressure difference of the pipe cleaner is adjusted, and the speed is reduced. Compared with an existing conventional pipe cleaner, the intelligent speed-control blade type pipe cleaner is lower in price, it is ensured that the pipe cleaning efficiency is higher,and the pipe explosion caused when the pipe cleaner gets stuck and the pipe cleaning speed is too high is effectively avoided.

A motor vehicle has a warning device for drivers of vehicles traveling behind in situations with strong braking deceleration. This warning device exhibits a warning signal transmitter, preferably formed by flashing indicators, a sensor for sensing the situation with strong braking deceleration and which is formed by the sensor for sensing an emergency braking situation of a braking assistance device, and a control unit for controlling the warning device, which is preferably embodied with the control device for controlling the braking assistance device as a common control unit, in particular in a common housing. This warning device proves very robust, very secure, and reliable in its operation.

The invention discloses a rear drive axle assembly. The rear drive axle assembly comprises an axle casing which is in a girder structure, two wheel hubs, a main reducing gear and differential mechanism assembly, a braking assembly, a hub reduction gear, a forced differential lock and a parking brake, wherein the forced differential lock comprises a sliding meshing sleeve, a differential mechanism lockpin, a piston, a selector rod, a back-moving spring and a shifting fork, the shifting fork is connected fixedly with a shifting fork shaft, the back-moving spring is arranged between the shifting fork and the shifting fork shaft, a groove which is matched with the shifting fork is arranged on the sliding meshing sleeve, grooves which are matched with the differential mechanism lockpin are arranged on the sliding meshing sleeve and a driving shaft gear of the main reducing gear and differential mechanism assembly correspondingly, the parking brake comprises a brake body and a brake disk, the brake body is arranged on a main reducing gear casing of the main reducing gear and differential mechanism assembly, the brake disk is arranged on a main tooth flange, and a plane and an installation hole, which are connected with the machine base plate, are arranged on the axle casing. The rear drive axle assembly has the advantages of being good in parking and heat radiation performance, large in bearing capacity, simple in structure and convenient to process and produce.

The invention discloses an emergency protective device for an elevator car. The emergency protective device for the elevator car comprises a car buffer, a counterweight buffer, a safety switch, a first trigger, a second trigger and a speed detection assembly, wherein the speed detection assembly can be used for detecting operation speed of the car and / or a counterweight unit; when the car is positioned at or higher than the position of the first trigger or is positioned at or lower than the position of the second trigger, the first trigger / the second trigger triggers the safety switch to open; the speed detection assembly is used for detecting operation speed of the car and / or the counterweight unit; when the operation speed exceeds speed set by a control system, the control system controls a drive main engine brake to act, so that the speed generated when the car / the counterweight unit is in contact with and hits against the car buffer / the counterweight buffer is lower than the set impact speed. When an elevator has an emergency condition, the emergency protective device can effectively protect the car / counterweight unit, so that the occurrence of a safety accident is prevented, and the possibility that elevator components are damaged is also reduced.

A guide rail assembly comprises a mounting bracket having a fixed rail on the mounting bracket for receiving an intermediate rail capable of sliding back and forth relative to the fixed rail, an outer pull out guide for attachment to the drawer and being capable of sliding back and forth on the intermediate rail relative to the intermediate rail and the fixed rail, a protrusion on the bottom surface of the outer pull out guide, a damping device and a channel guide disposed along the mounting bracket adjacent the fixed rail. The damping device is resiliently compressible in a lengthwise direction and the channel guide is provided with a sliding member. The sliding member includes an inner portion that travels within the guide and an outer portion that extends outwardly from the guide so as to be contactable by the pull out guide protrusion. The inner portion of the sliding member locates an end of the damping device that can be pushed inwardly to provide damping. During a closing action of the assembly, the outer pull out guide is caused to slide in a drawer-closing direction and when the protrusion reaches and contacts the sliding member outer portion, the sliding member travels within the channel guide against the resilience of the damping device and causes deceleration of the drawer-closing motion.

A vehicle seat reclining device allowing smooth adjustment of seatback angles. The vehicle seat reclining device has an internally toothed gear (12) formed on a gear plate (1) fixed to a lower arm; an externally toothed gear (22) formed on an upper arm (2), meshing with the internally toothed gear, and having teeth the number of which is less by at least one or more than the number of the teeth of the internally toothed gear; wedge members (7a, 7b) capable of being frictionally engaged with or disengaged from the gear plate or the upper arm; a spring (9) provided between the wedge members and urging the wedge members in the direction in which they are frictionally engaged with either the gear plate or the upper arm; a drive shaft (6) for rotating in a pressing manner either of the wedge members in the direction in which it is released from the frictional engagement; and a ring member (75a) provided in a relatively rotatable manner between either the gear plate or the upper arm and the wedge members and, when the drive shaft rotates, rotating together with the wedge members so as to rotate relative to the other of the either the gear plate or the upper arm.

The invention discloses a reverse-gear synchronizer assembly used in a manual transmission. The reverse-gear synchronizer assembly comprises an input shaft, hubs, gear sleeves and reverse-gear gear sets. Each gear sleeve is located between a corresponding bearing and the corresponding reverse-gear gear set, a fixing taper ring is further arranged between each bearing and the corresponding gear sleeve, and each gear sleeve is further provided with a first synchronous ring. Each reverse-gear gear set is further provided with a synchronous gear ring, wherein one end of the synchronous gear ring is connected with the reverse-gear gear set in an engaged manner, and the other end of the synchronous gear ring extends towards the corresponding gear sleeve side. Each gear sleeve is further provided with a second synchronous ring used for being matched with the corresponding synchronous gear ring, the second inner ring face of each second synchronous ring is in a conical shape, and each second inner ring face can be kept to be tightly matched with the outer ring face of the corresponding gear ring. The reverse-gear synchronizer assembly is simple in structure and convenient to install, the input shaft can be effectively decelerated so as to achieve synchronous input shaft deceleration, a reverse gear can be better engaged, and reverse-gear tooth collisions are avoided.

The invention discloses a snub self-protection type small wind driven generator, and belongs to the field of wind driven generators, the snub self-protection type small wind driven generator comprises a generator body, the generator body comprises a machine shell and a rotating shaft connected with fan blades, a speed limiting ring is fixedly embedded in the side wall of the machine shell, and the rotating shaft penetrates through the speed limiting ring; by improving an existing wind driven generator, the wind driven generator has the functions of automatically and manually starting and stopping a safety device, a magnetic block repels a second friction plate outwards by pulling a starting rope, the second friction plate and a first friction plate rub each other, and therefore the speed of a rotating shaft is reduced, and safe operation of the generator in strong wind weather is guaranteed; and the friction sleeve is additionally arranged on the side wall of the rotating shaft, and the friction plate I and the friction plate II are in intermittent contact by utilizing the principle that the centrifugal force is increased at a high rotating speed, so that the purpose of speed reduction is achieved, the generator realizes self-protection under the condition that people forget to start the starting rope, and the service life and the operation stability of the generator are effectively improved.

A method is disclosed for subdividing and decelerating a hot rolled long product advancing along a delivery path from a rolling mill to a cooling bed. The method comprises:(a) arranging a shear and a decelerator in succession along the delivery path, with the decelerator comprising a set of driven pinch rolls preceded by a plurality of deflector rolls;(b) contacting a lead segment of the product with the pinch rolls operating at an initial speed at least equal to that of the advancing product;(c) actuating the shear to separate the lead segment from the remainder of the product; and(d) decelerating the lead segment by:(i) reducing the speed of the pinch rolls; and(ii) actuating the deflector rolls to deflect the product segment from the delivery path into a sinuous path.

The invention discloses a rope decelerating and recycling structure for high-rise circulation escaping devices. The rope decelerating and recycling structure comprises the circulation escaping devices. Rope rotating shafts are fixed in the circulation escaping devices. Flat spiral springs are fixed to the rope fixing shafts. Ropes for escaping are fixed to the work ends of the flat spiral springs. Rope guiding openings are formed in the bottoms of the circulation escaping devices, and the ropes are guided out of the rope guiding openings. Spring type or hydraulic type supporting rods are symmetrically arranged on the two sides of each guiding opening. The tails of the corresponding spring type supporting rods are hinged to the two sides of each guiding opening. Rubber pads are arranged at the ends of the spring type supporting rods, and the ends of the spring type supporting rods are closely attached to the side walls of the rubber pads. The rubber pads are arranged on the ropes in a sleeving manner, and circular knots are arranged at the tails of the ropes at intervals. The rope decelerating and recycling structure is simple, convenient to manufacture and high in practicability.

The invention relates to an isolation cell for a sheath flow impedance counting device. The isolation cell comprises a container body, an inner cavity, a liquid inlet and a liquid outlet, wherein a device for controlling the flow velocity of liquid is arranged at and connected with the liquid inlet of the isolation cell. The device for controlling the flow velocity of liquid is arranged at or nearthe liquid inlet of the isolation cell to effectively decelerate liquid flowing out from the liquid inlet, so the flow velocity of fed liquid touching the inner wall or bottom liquid level of the isolation cell is much smaller than the flow velocity of the liquid just flowing out from the liquid inlet, and impact of the fed liquid on the inner wall or bottom liquid level of the isolation cell isreduced; and thus, the probability of generation of bubbles is lowered, interference of bubbles to a counter is decreased, and the accuracy of instrument testing is improved.

The invention relates to an offshore wind driven generator with a speed reduction device. The offshore wind driven generator comprises a base, a tower, a cabin, a unit and a plurality of swing assemblies arranged at one end of a rotating shaft of the unit. A first venturi device and a second venturi device are arranged on the tower, the first venturi device and the second venturi device each comprise a venturi tube, a sliding tube, a sliding block and a speed reduction assembly, and one ends of the first venturi device and the second venturi device are provided with a wind blocking assembly and a pushing assembly. The pushing assembly drives the wind blocking assembly to sequentially open air inlets of the venturi tubes in the first venturi device and the second venturi device, negative pressure areas are formed at the sliding tubes, the sliding blocks are pushed by air pressure to move up and down in the sliding tubes, and the speed reduction assemblies are driven to decelerate the rotating shaft. The offshore wind driven generator solves the problems that when an existing offshore wind driven generator encounters strong wind, a rotating shaft of the generator cannot be effectively decelerated through wind power, the energy consumption is large, and the service life of the generator is short.

The invention discloses a device and method for recycling heavy metal in sludge ash based on an independent incineration process, and relates to the technical field of heavy metal recycling. The device comprises a box body, a fixing seat is fixedly connected to the outer wall of the top of the box body, a pump body is fixedly connected to the top of the fixing seat, and a liquid inlet pipe is inserted into the top of the pump body; a fixing pipe is inserted into the bottom of the pump body, and one end of the fixing pipe is inserted into a liquid separation base. The first motor drives the centrifugal cylinder to rotate so as to generate a large centrifugal force, so that sludge water falling into the centrifugal cylinder collides with the screen, when the sludge water collides with the screen, sewage and sludge penetrate through the screen and flow out, and metal impurities in the sewage are blocked by the screen and left in the screen; meanwhile, the sludge wrapped on the outer wall of the metal impurities can be further shaken off through the impact between the sludge water and the screen, so that the magnetic separation efficiency and success rate of the subsequent device on the metal impurities are improved.

The invention discloses a rear drive axle assembly. The rear drive axle assembly comprises an axle casing which is in a girder structure, two wheel hubs, a main reducing gear and differential mechanism assembly, a braking assembly, a hub reduction gear, a forced differential lock and a parking brake, wherein the forced differential lock comprises a sliding meshing sleeve, a differential mechanism lockpin, a piston, a selector rod, a back-moving spring and a shifting fork, the shifting fork is connected fixedly with a shifting fork shaft, the back-moving spring is arranged between the shifting fork and the shifting fork shaft, a groove which is matched with the shifting fork is arranged on the sliding meshing sleeve, grooves which are matched with the differential mechanism lockpin are arranged on the sliding meshing sleeve and a driving shaft gear of the main reducing gear and differential mechanism assembly correspondingly, the parking brake comprises a brake body and a brake disk, the brake body is arranged on a main reducing gear casing of the main reducing gear and differential mechanism assembly, the brake disk is arranged on a main tooth flange, and a plane and an installation hole, which are connected with the machine base plate, are arranged on the axle casing. The rear drive axle assembly has the advantages of being good in parking and heat radiation performance, large in bearing capacity, simple in structure and convenient to process and produce.

The invention discloses a device for driving ropes in a tall building circulating escape device. The device is characterized in that rope rotating shafts are fixed inside the circulating escape device; ropes for escape are fixed to the rope rotating shafts of the circulating escape device; mounting grooves are formed in the circulating escape device right below the rope rotating shafts; spring type supporting pieces I are mounted in the mounting grooves and are fixed; the tops of the spring type supporting pieces I are fixed on the bottom sides of the rope rotating shafts; the rope rotating shafts are connected with a driving motor through speed reducers; rope guide openings are formed in the bottom of the circulating escape device; the ropes are guided out of the rope guide openings; spring type or hydraulic type support rods are symmetrically arranged on the two sides of each guide opening; the tail parts of the spring type support rods are hinged to the two sides of each guide opening respectively; rubber blankets are arranged at the end parts of the spring type support rods; the end parts of the spring type support rods tightly fit the side walls of the rubber blankets; the rubber blankets sleeve the ropes; and circular knots are arranged at the tail parts of the ropes at interval. The device is simple in structure, convenient to manufacture, and high in practicability.

The invention provides an intersection deceleration strip intelligent regulation and control system and a regulation and control method. Periodic regulation and control are conducted by arranging multiple stages of deceleration strips and combining the intersection signal period, then the state of the deceleration strip is changed in different periods, and the vehicle speed of a non-motor vehicledriver can be effectively controlled; through an information prompting device and a light-emitting device, the non-motor vehicle driver can obtain road information in time and actively adjust the vehicle speed, and therefore the non-motor vehicle driver can actively adapt to the driving environment. By arranging a detection device, damage caused by the fact that whether the non-motor vehicle driver exists or not cannot be judged when the deceleration strip rises can be prevented.

The invention discloses a mobile VOC treatment device. A mobile mechanism is formed by a vehicle body and a carriage on the vehicle body, a hot nitrogen cyclic desorption regeneration system of the device is arranged in the carriage, the hot nitrogen cyclic desorption regeneration system comprises an electric heater, a desorption bed and a main fan which are connected in sequence, a pipeline is led out of the air outlet end of the main fan to be connected with a heat accumulating type catalytic combustion bed, the heat accumulating type catalytic combustion bed is connected with an exhaust funnel, the output end of a nitrogen making machine is connected to the pipeline between the main fan and the electric heater, flame retardants are arranged between the desorption bed and the electric heater and between the desorption bed and the main fan, and the air outlet end of an auxiliary fan is connected between the heat accumulating type catalytic combustion bed and the pipeline of the main fan to supplement air for the heat accumulating type catalytic combustion bed. The hot nitrogen cyclic desorption regeneration system is integrated in the carriage on the vehicle body, so that the system is convenient and flexible to use, VOC waste gas of each factory can be conveniently treated in a flowing manner, and the desorption process of an adsorbent is realized.

The invention belongs to the technical field of road facilities, and particularly relates to a road traffic intelligent ice and snow removing deceleration strip assembly which comprises a base plate, an electric heating plate is arranged on the upper side of the base plate, a center plate is arranged in the middle of the electric heating plate, and a plurality of contact assemblies arranged in parallel are arranged in the middle of the base plate and the middle of the electric heating plate in a penetrating mode. Rubber belts are arranged on the two sides of the base plate, the section of each rubber belt is of an arc-shaped structure, a battery panel is arranged below the base plate, and fixing plates are fixedly connected to the two sides of the battery panel. A driver can be visually warned, meanwhile, speed reduction can be effectively conducted by increasing friction force, meanwhile, the battery panel can be charged according to passing vehicles, when ice and snow cover the speed bump, the heating effect of the electric heating plate can be automatically controlled according to the amount of the ice and snow, and the speed bump is more convenient to use. Therefore, the purpose of melting ice and snow on the deceleration strip is achieved.

The invention relates to the technical field of elevators, in particular to a safety locking structure of a construction elevator. The safety locking structure comprises an elevator car body, an elevator bracket, a controller, rail bodies and a storage battery; a damping mechanism is arranged at the bottom of the elevator car body; a shell is bolted at the top of the elevator car body; and the controller and the storage battery are both mounted in the shell. According to the safety locking structure of the construction elevator, through the arrangement of the controller, the shell, a driving motor, a driving gear, strip-shaped gears, connecting rods, fixed plates, rake nails, a baffle plate, movable plates, rubber pads, a button and an electric push rod, the structure can effectively decelerate in the falling process of the elevator car, and can lock the elevator car after the elevator car stops; the safety and the protection performance of the structure are improved; and the problemsthat in the falling process of an existing elevator car, effective speed reduction or locking measures are lacked, the falling speed of the elevator car is too high, and large potential safety hazardsexist are solved.

The invention discloses an anti-cutting steel tape for building measurement, which structurally comprises a hanging belt, a shell, a tape main body, a protective sleeve device, a tape hook, a steel tape and a storage groove, and is characterized in that the hanging belt is arranged at the left end of the shell and is buckled with the shell, so that when equipment is used, through an arranged mechanism, the steel tape can be prevented from being damaged when the tape is withdrawn; in order to solve the problems that the rear end of a tape band is easy to bend, the tape can be withdrawn more smoothly only by manual correction, and the hand is possibly cut due to too high speed when the tape body is held, the equipment pulls a sleeve device to be unfolded outwards through a pull ring device, so that a safe distance is formed at the tape outlet end of the tape body, and the safety of the tape body is ensured. When the ruler is withdrawn, the near-end steel ruler body does not make contact with the hand, meanwhile, by adjusting the swing direction of the speed reduction device, the effective speed reduction effect on the steel ruler body can be achieved, the cutting risk is reduced, meanwhile, the hidden telescopic sleeve device is more convenient to store, and the whole ruler is safer.

The invention discloses a main shaft reduction device, which comprises a workbench, the top of the workbench is fixedly connected with a casing, the top of the casing is fixedly connected with a protection box, and the tops of both sides of the inner wall of the protection box are provided with chute. The present invention is provided with a housing, a protection box, a spring, a support plate, a fixed block, a slider, a slide bar, a chute, a main shaft body, a first connecting plate, a deceleration pad, a fixing plate, a second connecting plate, and a third connecting plate , the first connecting rod, the second connecting rod, the third connecting rod, the threaded rod, the bushing, the motor, the first bevel gear and the second bevel gear can effectively decelerate the main shaft and achieve the deceleration The function with good effect solves the problem that most of the existing spindles are decelerated by gear meshing, so the deceleration effect is not good, which leads to the problem of low transmission accuracy, which is convenient for users to use and improves the processing speed of the spindle, suitable for popularization and use .

The invention relates to a reducing slag collecting box for a metallic magnesium smelting and high-pressure slag skimming charging integrated machine. The reducing slag collecting box comprises a box body left cover plate 1, a box body right cover plate 2, a box body front cover plate 3, a box body back cover plate, a box body lower cover plate 5, a box body upper cover plate 6, a dust removal vortex plate 7, a barrier fireproofing plate I 8, a barrier fireproofing plate II 9, a grid diversion plate 10, a connecting bolt I 11 and a connecting bolt II 12. The reducing slag collecting box has the main advantages that high-temperature reducing slag which runs at a high speed and is reversely blown out by a high-pressure compressed air flow is effectively slowed down and is subjected to dust-material separation; the phenomenon that the reducing slag overflows and splashes in a large quantity is eliminated, and the field operation environment is greatly improved.

The invention relates to an offshore wind power generator with a deceleration device, which includes a base, a tower, a nacelle, a unit and several swing assemblies arranged on one end of the rotating shaft of the unit, and a first and a second Venturi are arranged on the tower device, the first and second Venturi devices all include a Venturi tube, a slide tube, a slider and a deceleration assembly, and one end of the first and second Venturi devices is provided with a windshield assembly and a push assembly; the push assembly drives the windshield assembly in turn Open the air inlet of the Venturi tube in the first Venturi device and the second Venturi device, and form a negative pressure area at the slide tube, the slider moves up and down in the slide tube under the push of air pressure, and drives the deceleration assembly to decelerate the shaft The present invention solves the problems that current offshore wind power generators cannot use the wind force to effectively reduce the speed of the generator shaft when encountering strong winds, the energy consumption is relatively large, and the service life of the generator is short.

A retarding hinge for furniture, comprising a fixed part (10) connectable to the body of the furniture, and a movable part consisting of a box-shaped part ( 11) A door leaf constituting and connectable to the piece of furniture, the fixed part and the movable part are hinged to each other in an oscillating manner, there is also a reduction device (16) comprising at least one linear reduction device (18) and for linear reduction Actuating device (19) of the gear; At least one linear reducer (18) can be coupled to the actuating device (19) under the condition that the reducing device (16) is detached from the hinge, at least one linear reducer (18) and The actuating device (19) is accommodated in the receiving body (17), which is coupleable to the side wall (26) and the bottom (27) of the hinge box (11).

The invention relates to the technical field of piping connecting equipment, and discloses an industrial sewage discharge pipe connecting assembly. The industrial sewage discharge pipe connecting assembly includes a fixing frame plate; moving wheels are fixedly mounted at the bottom of the fixing frame plate, a driving motor is fixedly mounted on the inner side of the top of the fixing frame plate, the exterior of an output shaft of the driving motor is fixedly connected with a rotating rod in a sleeved mode, a transmission assembly is fixedly connected with the end, away from the driving motor, of the rotating rod, and the middle of the back side of the transmission assembly is fixedly connected with a rotating screw. According to the industrial sewage discharge pipe connecting assembly,through the combination function of the connecting pipe, a supporting plate and a connecting groove, the stability of the connection and installation work for a compression clamping plate and a fixedclamping plate is improved, meanwhile, clamping assemblies such as the compression clamping plate and the fixed clamping plate can be conveniently disassembled and replaced according to the connectingpipes of different outer diameter dimensions, and accordingly, the applicability of the work of the industrial sewage discharge pipe connecting assembly is further improved.

The invention discloses a gas diffusion device. The gas diffusion device comprises an inner cylinder and an outer cylinder surrounding the periphery of the inner cylinder. Spacing exists between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and a first annular partition plate and a second annular partition plate in the circumferential direction of the inner cylinder are arranged on the outer wall of the inner cylinder at intervals in the axial direction from bottom to top. The circumferential peripheries of the first partition plate and the second partition plate are connected to the inner wall of the outer cylinder, and the first partition plate and the second partition plate are provided with through holes. A first combustion chamber is arranged at an area between the first partition plate and the second partition plate, and a second combustion chamber is arranged at the position, above the second partition plate, in the outer cylinder. The first combustion chamber is internally provided with first burners and second burners at intervals from bottom to top in the axial direction of the inner cylinder, the first burners are connected with a blast furnace gas pipe and maintained in a normally open flame state, and the second burners are in communication with the inner cylinder through branch pipes. The gas diffusion device can enable diffused gas to be reliably ignited, can preheat the gas and air, improves the sufficiency of combustion, and avoids the situations of flame lifting and flameout.

The invention discloses a new energy automobile battery module system and a rapid heat dissipation method, and relates to the technical field of new energy automobiles, the new energy automobile battery module system comprises an air inlet mechanism and a battery module, the battery module is mainly composed of a lithium battery box and a mounting plate, the lithium battery box is mounted at the top of the mounting plate through a support, and the battery module further comprises a heat dissipation plate; the lithium battery module system comprises a lithium battery box and a heat dissipation plate, the heat dissipation plate is mounted on the inner bottom wall of the lithium battery box in an attached and embedded manner, an air outlet box and an air inlet box are arranged on the two sides of the top of the lithium battery box respectively, corrugated pipes are mounted at ports of the air outlet box and the air inlet box, and the lithium battery box is connected with an air inlet and outlet supercharging device through the corrugated pipes. The heat dissipation effect of the lithium battery is effectively improved; according to the rapid heat dissipation method, intelligent starting can be effectively carried out according to the working state of the battery and the weather influence through the multi-stage cooling program, and energy conservation can be achieved while continuous and effective heat dissipation is carried out on the battery.

The invention discloses a rope speed reducer structure of high-rise circulation escape devices. The rope speed reducer structure comprises ropes used for escaping. The ropes are fixed to rotating shafts of the circulation escape devices. Rope guiding openings are formed in the bottoms of the circulation escape devices, and the ropes are guided out of the rope guiding openings. Spring type or hydraulic type supporting rods are symmetrically arranged on the two sides of each guiding opening, wherein the tails of the spring type supporting rods are hinged to the two sides of the guiding opening. Rubber pads are arranged at the ends of the spring type supporting rods, and the ends of the spring type supporting rods are closely attached to the side walls of the rubber pads. The rubber pads are arranged on the ropes in a sleeving manner, and circular knots are arranged at the tails of the ropes at intervals. According to the rope speed reducer structure, sliding friction occurs through the circular knots and the rubber pads, and therefore the kinetic energy of the ropes is reduced. Meanwhile, by means of the spring type supporting rods, part of kinetic energy of the ropes can be converted into potential energy of the spring type supporting rods to be stored, and therefore the ropes can be effectively decelerated. The rope speed reducer structure is simple, convenient to manufacture and high in practicability.

The invention relates to an air injection device and an activated carbon production device. The air injection device comprises an air injection pipe and an air mixer communicated with the air injection pipe; an air outlet hole is formed in the tail end of the air injection pipe; an air baffle plate is arranged on the front side of the air outlet hole in the direction from the air injection pipe to the air mixer. According to the air injection device, it can be guaranteed that air is evenly fed into an activated carbon production device, the oxygen deficit or peroxy combustion phenomenon of all points in the device is eliminated, and it is guaranteed that materials are evenly and fully activated.