34results about How to "Safe and comfortable working environment" patented technology

The invention belongs to the field of semitrailers, and particularly relates to a semitrailer lifting supporting leg. The problems that an existing lifting supporting leg is strenuous in height adjusting, the pressure of a supporting plate on the ground is too large and collision may occur if the lifting height of the supporting leg is too low are solved. According to the technical scheme, the supporting leg comprises a fixed seat, wherein a hydraulic telescopic rod is rotationally connected to the side wall of the lower end of the fixed seat through a rotary shaft, a cavity is formed in the fixed seat, the side wall of the cavity is connected with a swing rod through a transverse moving mechanism, the swing rod is rotationally connected with the fixed end of the hydraulic telescopic rod, the telescopic end of the hydraulic telescopic rod is fixedly connected with a mounting seat, the mounting seat is of a hollow structure, and a stepping motor is fixedly connected to the inner wall of the upper end of the mounting seat. According to the supporting leg, adjusting is easy and labor-saving through the motor and the hydraulic telescopic rod, the pressure borne by a main supporting plate is reduced through an auxiliary supporting plate, so that the hydraulic telescopic rod can be rotated to lift the main supporting plate so as to prevent the main supporting plate from collision, and therefore the use safety of the semitrailer is improved.

The invention discloses a throwing auxiliary device for pottery making. The device comprises a throwing auxiliary device body, a first throwing auxiliary device accessory body, a second throwing auxiliary device accessory body and a moving sliding block. One side of the throwing auxiliary device body is connected to the first throwing auxiliary device accessory body, a second limiting groove is formed in the side, away from a moving groove, of a first limiting groove, and a first limiting block is mounted at the position, between a second limiting block and a round groove, of the moving sliding block. The throwing auxiliary device for pottery making has the advantages of being simple in structure, safe, reliable, capable of preventing a worker for throwing of pottery making from collidingwith a moving object or person, capable of providing a safety pottery making work environment, meanwhile, capable of providing reliable and effective supporting for the worker of throwing in pottery making, and capable of saving pottery making worker labor force, ensuring pottery making throwing quality, and improving pottery making throwing production benefits and the like.

The invention relates to a novel tractor capable of traveling in two directions. The tractor comprises a machine frame, a traveling system, a power device, a steering system and a manipulating system, wherein the machine frame is provided with a cab capable of being sealed, the cab is provided with a rear face plate and a pneumatic spring rear window, the manipulating system is composed of a front manipulating system body, a rear manipulating system body, an instrument table and a rotary seat, the front manipulating system body and the rear manipulating system body are arranged on a bottom plate of the machine frame, the steering system is composed of a steering gear pump, an oil tank, an electromagnetic reversing valve, a front steering gear box, a rear steering gear box and a steering hydraulic cylinder, and all components of the steering system are connected through high-pressure hoses to form a circulating hydraulic return circuit. According to the novel tractor, the design of the steering system is improved, only one electromagnetic reversing valve is used, the front full-hydraulic steering gear box and the rear full-hydraulic steering gear box are in parallel connection with a hydraulic system, namely, the two full-hydraulic steering gear boxes share one gear pump and one steering oil cylinder, the hydraulic return circuit system is simple, safe and reliable, and cost is saved.

The invention discloses high-temperature resistance detection equipment for automobile parts. The high-temperature resistance detection equipment comprises a support frame and a central processing unit. Drums are arranged at two ends of the support frame, a conveyor belt sleeves the outer surfaces of the drums, a first motor is arranged on a side of the support frame, a rotary shaft of the first motor is in transmission connection with the drums by belts, a machining tank is fixedly mounted on the top of the support frame, fixing plates which are equidistantly distributed are fixedly mounted on the upper surface of the conveyor belt, an electric push rod is fixedly mounted on the inner wall of a top plate of the machining tank, and a second motor is fixedly mounted at the bottom of the electric push rod. The high-temperature resistance detection equipment has the advantages that the conveyor belt, the machining tank and a detection tank are arranged on the support frame, the parts canbe fixed onto the fixing plates, then can be conveyed into the machining tank to be machined, can be directly fed into the detection tank via a connecting barrel after being completely machined, can be subjected to high-temperature resistance detection and do not need to be conveyed, the transport time can be saved, accordingly, the work efficiency can be improved, and workload on workers can be relieved.

The invention relates to coal mine underwater treatment technology, in particular to a stope face roof water pre-drainage construction method, which solves the technical problem of treatment of a water-bearing bed on a coal seam of a stope face. As the process of stoping on the stope face includes down stoping firstly and up stoping secondly, stope face roof water is drained in advance through roadways beside the stope face before stoping, a drill site chamber and a water bin are constructed at the lowest position of each of the roadways, two drainage pipelines are paved on each of the roadways, an independent drainage system is utilized, drainage holes are drilled in the drill site chamber towards the stope face roof, and water for drilling is led into the water bin through hoses directly and is drained by the drainage system of the roadways. Since roof water is drained in advance, water inflow during the stoping process is reduced effectively, troubles to production of coal mines due to the roof water are eliminated, affection of flood disaster to production is avoided, a safe and comfortable working environment is provided for the stoping operation, and conditions for stability and high yield of the stope face are created.

The invention discloses an ultraviolet LED aging table suitable for surface mounting. The ultraviolet LED aging table comprises an LED electrode clamp, a spring, fixed bolts, hollow screws, positive and negative electrode conductive wires, an operation panel, and an adjustable track. Two hollow screws goes through the operation panel, the top ends of the hollow screws are equipped with the LED electrode clamp and a handle, and the tail ends are equipped with the spring and the fixed bolts which are fixed at the tail ends of the hollow screws. The other end of the spring is blocked by the operation panel, wherein one hollow screw is fixed to the operation panel, and the other hollow screw is installed in the adjustable track. The hollow screw is also internally provided with the positive and negative electrode conductive wires, and one end of each of the positive and negative electrode conductive wires is connected to the LED electrode clamp. Two sides of the adjustable track is provided with a partition board, the other side of the partition board is provided with an observation window, and a group of reflection lenses is arranged under the operation panel. According to the ultraviolet LED aging table suitable, the optical imaging confusion can be prevented, a comfortable and safe working environment is provided, the operation is convenient, the accuracy is high, and the production efficiency is improved.

The invention relates to a cycle device, in particular to an air rapid cycle device within a plant for metallurgical steelmaking. The air rapid cycle device within the plant for the metallurgical steelmaking can quickly adjust an air convection cycle speed, reasonably adjust the use range of the device, and increase the air humidity. The air rapid cycle device within the plant for the metallurgical steelmaking comprises a first mounting plate, a sliding rail, sliding blocks, a second mounting plate and so on; and the sliding rail is embedded into the left side of the top of the first mountingplate, the top of the sliding rail is symmetrically connected with sliding blocks in a left-right and sliding mode, the top of the sliding blocks at the left and right sides is provided with the second mounting plate, and the top of the second mounting plate is provided with an air cycle device. According to the air rapid cycle device within the plant for the metallurgical steelmaking, first vanesat the left and right sides rotate at a high speed, the air convection cycle speed is accelerated to facilitate a quick exchange of air in the plant and outside air, and a comfortable and safe working environment for workers is created.

The invention provides a wet-type dust-capturing wind current cooling device mounted at a head-on rear position of a mining working face mining machine, connected with an outlet end of a polluted wind pumping canister and comprising a cover shell, and a spray dedusting device, a cyclone centrifugal dedusting device, a dust screen filtering device, an air cooling type heat exchanger and a baffle plate demister which are connected in order inside the cover shell; positions of the cover shell walls below the cyclone centrifugal dedusting device and the baffle plate demister are respectively provided with drainage pipe ports. Fully-mechanized excavating working face dust capturing and wind current cooling works are combined together, with a treatment mode of firstly dust capturing and then wind current cooling, polluted wind is firstly subjected to multi-stage dust capturing treatment and then is demisted and cooled, the working face wind current temperature is controlled in a suitable temperature, a safe and comfortable working environment of the down-hole working face is ensured, and the problems of high temperature and high dust of the mine mining working face are better solved.

The invention discloses a dust removal device for furniture polishing, and the dust removal device comprises a polishing platform, a cavity, an exhaust fan, a water-whirling apparatus, an air suction pore plate and a filter layer, wherein the cavity is arranged above the polishing platform and provided with an upper processing cavity separated from the outside, and the top of the cavity is provided with an exhaust pipe communicated with the upper processing cavity; the exhaust fan is connected with the exhaust pipe; the polishing platform is provided with a lower processing cavity communicated with the upper processing cavity; the polishing platform is also provided with a water tank which is spaced out, arranged above the lower processing cavity and exposed to the outside; the air suction pore plate is respectively arranged on the cavity and the polishing platform and covers the water tank; the water-whirling apparatus is arranged on the polishing platform, the bottom end of the water-whirling apparatus stretches into the lower processing cavity, and the top of the water-whirling apparatus stretches into the water tank; and the filter layer is arranged in the upper processing cavity and located below the exhaust pipe. After being sequentially sucked into the air suction pore plate and the water tank, dust (generated by polishing) is processed in the water-whirling apparatus; after passing through the lower processing cavity and the filter later in the upper processing cavity, the processed gas is discharged to the outside by virtue of the exhaust pipe. The dust removal device disclosed by the invention has the advantages of good dust removal effect, simple structure and low cost.