30results about How to "Reduce the incidence of occupational diseases" patented technology

The invention discloses an environment-friendly blackboard eraser and a blackboard assembly using the environment-friendly blackboard eraser, and relates to the field of teaching tools, in particular to the technical field of blackboards and blackboard erasers. An environment-friendly blackboard eraser is used in conjunction with a sliding blackboard or a push-pull blackboard, and includes a blackboard eraser body, a fixing piece and a fixing seat. The blackboard eraser body is detachably arranged on the fixing part, and the fixing part is connected with the fixing seat. The fixing seat can be fixedly arranged on the fixing plate of the sliding blackboard and can adjust the pressing force between the blackboard eraser body and the blackboard. The blackboard assembly includes at least two sliding blackboards with adjustable positions and the above-mentioned environment-friendly blackboard eraser. The sliding blackboard includes a top board and a bottom board, the environmentally friendly blackboard eraser is fixedly arranged between the top board and the bottom board and the blackboard eraser body can be set facing the sliding blackboard. The invention has reasonable design, simple structure, easy replacement and cleaning, high wiping efficiency, saves time, is not easy to raise dust, and reduces harm.

The invention discloses a working chair for an industrial production line, which comprises a support, a fixing strap, a supporting rod, an operating lever and a sucker. The fixing strap is a T-shaped structure and is connected with the support via a quick connector and an adjustable part, the supporting rod consists of multiple sections of retractable or foldable bearing bars, the operating lever is arranged at a joint of the support and the supporting rod, and the sucker is disposed at the tail of the supporting rod. By the aid of the working chair, personnel can stand or sit at any time and any place, an independent stool holding space is omitted, normal operation and walking of the personnel are not affected, accordingly, reduction of the work intensity of the personnel is facilitated, occupational disease incidence is reduced, operation spaces are saved, work efficiency is improved, capacity is enhanced, and cost is reduced.

The invention discloses a mine underground discharging device and application thereof. The mine underground discharging device is used for unloading mine underground materials. The device consists of a rear hydraulic cylinder, a holding arm, a support rod, an inner rack, an outer rack, a device body, a hydraulic connecting rod, a sliding rail, a hopper and a leakage hole, wherein the rear hydraulic cylinder component of the device is adsorbed to the ground, and the arranged support rod is supported on the rail, so that the stability of the device is realized together. <0}{0><}0{>The holding arm component of the device is capable of holding a tramcar; under the coaction of the sliding rail, the inner rack, the outer rack and the hydraulic connecting rod, the tramcar can move up and down and overturn, so that material unloading is realized; the device is provided with one hopper, and the lower side of the hopper is provided with the leakage hole which can be connected with a transfer mechanism, so that material conveying is realized.

A treatment method for brightening surfaces of copper nickel alloy tubes is provided. The method comprises following eight steps in order: polishing, removing oil, washing with clear water at room temperature after oil removing, pre-pickling, washing with clear water at room temperature after pickling, performing chemical polishing, cleaning and dehydrating. The step of performing chemical polishing includes following three subsidiary steps: preparing a polishing solution, ageing and polishing. The polishing solution comprises 350-430 mL / L of H2O2, 30-50 mL / L of concentrated H2SO4, 10 mL / L of concentrated H3PO4, 17-20 mL / L of C2H2OH, 1-1.5 mL / L of OP-10, and 1 g / L of BTA, with the balance being H2O. The polishing solution is simple in preparation, low in toxicity and harm, high in production efficiency and low in cost. The surfaces of polished copper nickel alloy tubes are bright, beautiful and flat. The method saves treatment time, increases the production efficiency, reduces energy consumption, and improves surface quality of the copper nickel alloy tubes to a certain degree.

The invention discloses a device for assisting intermittent urinary catheterization, which comprises a base, a thigh separation device, a male genital support and a medical tray. The thigh separation device is arranged on the base, the male genital support is arranged on the thigh separation device, and the medical tray Set on the base, the present invention is simple in structure, convenient in fixing, convenient in operation, safe and reliable, frees the patient from the influence of medical adhesive tape on the skin, relieves the pain of the patient, makes the catheterization operation of the nurse more convenient, and reduces the need for medical staff. The labor intensity is reduced, the probability of occupational diseases is reduced, and medical resources are saved.

The invention discloses an elastic polishing head. The elastic polishing head comprises a vacuum bar, an inner cavity is formed in the vacuum bar, an elastic polishing head body is arranged at the top end of the vacuum bar and provided with a first through hole, and the first through hole is communicated with the inner cavity of the vacuum bar. The invention further discloses a polisher comprising the elastic polishing head. The inner cavity of the elastic polishing head is communicated with a vacuumizing device. By sucking air from the inner cavity of the vacuum bar or blowing air to the inner cavity of the vacuum bar, abrasive paper can be automatically replaced or removed, so that the automation degree is high. The elastic polishing head is applicable to various work-pieces, so that the cost is greatly lowered. The polisher is provided with a mechanical arm so that operating personnel can be far away from the severe operating environment.

The invention relates to a computer table which is used for positioning a display and can be adjusted forwards. The invention aims to solve the problem that a table top which can change an angle is provided, thereby ensuring that the display can rotate a certain angle along with the rotation of the angle, and an operator feels comfortable. The invention adopts the technical proposal that the computer table is provided with a table top plate and table legs, an angle iron is fixed at the upper ends of the table legs through a bearing and an axle, the other surface of the angle iron is fixed and connected with the lower end of the table top plate, the two ends of the axle are circular columns, the part of the middle part fixed with the angle iron is of a rectangle, an interlock mechanism is arranged on one end of the axle, two transversely moving display front blocking frames that can move horizontally and an L-shaped supporting frame connected with the front blocking frame are arranged at the front part of the table top plate, a keyboard track frame is arranged below the table top plate, the front end of the keyboard track frame is movably connected with a block bar fixed on the table legs on both sides through a hinge, an arc-shaped pull rod with a groove is arranged in the middle part of the keyboard track frame through a pin axle, and the other end of the pull rod is connected with the bottom part of the table top plate. The invention is suitable for the places where the computer is applied.

The invention relates to a lifting type police stand capable of multi-directionally sheltering from rain. The lifting type police stand capable of multi-directionally sheltering from rain comprises abase and a snap joint plate, wherein a sliding rod is connected in the base, the base is fixedly connected with the sliding rod, the middle of the sliding rod is provided with a sliding groove, the sliding rod is tightly attached to the sliding groove, the middle of the sliding groove is provided with a snap joint hole, the snap joint plate is installed at the top of the sliding groove, a base plate is fixed to the inner side of the sliding rod, the left side and the right side of the inside of the base plate are provided with supports, the supports are fixedly connected with the base plate, and the inner sides of the tops of the supports are connected with standing plates. The lifting type police stand has the advantages that the snap joint plate can be bilaterally adjusted through left-right sliding between the sliding rod and the base plate in the sliding groove, the left-right movement of a guidance protection device on the snap joint plate can be adjusted, accordingly position adjustment can be executed according to sunlight irritation angles, the degree of damage to the high temperature in summer can be reduced, and direct sunlight irradiation can be avoided by left-right movement.

The invention relates to a method for recovering methyl ester in a waste esterified solution by continuous extraction process. The waste esterified solution is continuously fed into an extraction tank and continuously extracted with pure benzene to recover methyl ester in the waste esterified solution. By virtue of the method disclosed by the invention, the stability of process parameters can be improved, the potential safety and environmental hazards can be also eliminated, the incidence rate of the occupational disease is reduced and the labor strength of workers can be greatly reduced. Since the environment for continuously extracting methyl ester is stable, the good extraction effect is achieved, the recovery rate of methyl ester can be improved and the recovery rate of methyl ester is increased from the original about 3.3% to about 3.9%.

The invention discloses a device for assisting intermittent catheterization, which comprises a thigh separation device, a lifting adjustment bracket, a medical tray and a male genital bracket, the thigh separation device is arranged on the lifting adjustment bracket, and the medical tray is arranged on the thigh separation device , the male genital bracket is set on the thigh separation device. The invention has the advantages of simple structure, convenient fixing, convenient operation, safety and reliability, which makes the patient get rid of the influence of the medical adhesive tape on the skin, relieves the pain of the patient, and makes the catheterization operation of the nurse more convenient. It is convenient, reduces the labor intensity of medical staff, reduces the probability of occupational diseases, and saves medical resources.

The invention discloses a horizontal flow medicine dispensing clean workbench, in particular to the technical field of medical equipment. The horizontal flow medicine dispensing clean workbench comprises a clean workbench body and a Y-shaped hose, and the clean workbench body is internally provided with a Operation area, above the operation area is provided with a workbench air inlet cavity, the bottom surface of the workbench air inlet cavity is provided with an inflatable solenoid valve, the back of the clean workbench body is provided with an air extraction solenoid valve, the inflatable solenoid valve The valve and the suction solenoid valve are respectively connected with the two upper ends of the Y-shaped hose, the lower end of the Y-shaped hose is installed with a dispenser, and a bracket is arranged on one side of the clean workbench body, and the The medicine dispenser is installed on the support, and the medicine dispenser can move along the support. The present invention is not prone to cross-contamination, has low cost, and prevents fatigue.

The invention provides waterborne single-component thermoplastic plastic paint and a production method and construction method thereof. The plastic paint is suitable for the coating of plastic cabinet prepared from ABS (Acrylonitrile Butadiene Styrene), PS (poly styrene), HIPS (High Impact Polystyrene), PC (polycarbonate), PMMA (polymethyl methacrylate) and the like, has good adaptability to the surface of the material and also has good adhesive force, thus the adhesive force problem of the waterborne paint on the plastic substrate can be solved. A waterborne system is adopted for the paint mainly adopts, the production and using processes are safe; and water is used as diluent, and the paint has the advantages of low toxicity, low pollution, extremely low volatile organic compound (VOC) emission and the like and meets various laws and regulations on environmental protection. Meanwhile, the paint can use different color pastes for coloring; and the paint has better decorative propertyon the substrate while the properties can not be affected. Compared with the common solvent thermoplastic acrylic paint, the paint only uses a small amount of low-toxicity alcohol ether type organic solvent, thus the influence on the plastic substrate is extremely small; and the paint film has bright colour, full appearance effect and good performances.