71results about How to "Play the role of limit guide" patented technology

The invention relates to the field of road engineering, in particular to cement road surface grinding flattening equipment for traffic. The cement road surface grinding flattening equipment for the traffic comprises a vehicle body, and further comprises a double-side grinding fattening mechanism and a front-and-rear grinding fattening mechanism, wherein the double-side grinding fattening mechanismcomprises two adjusting grinding flattening assemblies and a first lifting assembly, the two adjusting grinding flattening assemblies each comprise an upward folding assembly and a horizontal foldingassembly, each upward folding assembly and each horizontal folding assembly each comprise a first cement leveling machine, the front-and-back grinding flattening mechanism comprises a front grindingflattening assembly and a rear grinding flattening assembly, the front grinding flattening assembly and the rear grinding flattening assembly each comprise a second lifting assembly and a lifting plate, a plurality of second cement leveling machines are arranged at the bottom of each lifting plate, the lifting plates are horizontally arranged below the second lifting assemblies, and the tops of the lifting plates are in transmission connection with the working ends of the second lifting assemblies. According to the cement road surface grinding flattening equipment for the traffic, people onlyneed to seat on the vehicle body for operation, moreover, adjustment can be performed according to the widths of different roads, and the grinding flattening efficiency is improved.

The invention relates to an electric spark machine tool machining system which comprises a supporting top plate, positioning mechanisms and a welding device. The positioning mechanisms are symmetrically mounted at the bottom of the supporting top plate; the welding device is mounted on the lower end face of the middle of the supporting top plate; the positioning mechanisms comprise positioning multi-stage push rods, positioning pressing plates, positioning plates, pushing push rods and push rod connecting frames; and the welding device comprises a welding electric sliding block, a welding position push rod, a welding supporting plate, welding side plates, a sliding mechanism, baffle mechanisms, welding mechanisms and clearing and polishing mechanisms. According to the electric spark machine tool machining system, the difficult problems that when a guiding rail of an existing electric spark machine tool is welded, the position of the guiding rail cannot be automatically corrected, the guiding rail shakes during welding, welding slag splashes everywhere during welding of the guiding rail, when the guiding rail is welded, the welding angle is changed, consequently the welding effect is poor, when discarded, welding rod ends are likely to be pasted to the machine tool, and post-welding treatment cannot be automatically conducted on the guiding rail can be solved.

The invention discloses a free lifting device for logistics carrying, which comprises a bottom plate, wherein wheels are fixedly mounted on the outer surface of the lower end of the bottom plate, a power assembly is arranged on one sides of the wheels, a stabilizing mechanism is fixedly connected to the middle of the outer surface of the lower end of the bottom plate, a control box is fixedly mounted on the left side of the outer surface of the upper end of the bottom plate, an adjusting mechanism is arranged at the left end of the outer surface of the upper end of the bottom plate, a pushing handle is fixedly installed on the outer surface of the upper end of the adjusting mechanism, a lifting frame is arranged in the middle of the outer surface of the upper end of the bottom plate, a telescopic air cylinder is arranged between the lifting frame and the bottom plate, and a carrying plate is fixedly connected to the outer surface of the upper end of the lifting frame. The free lifting device for logistics carrying has the advantages that the height of the pushing handle is convenient to adjust, the free lifting device adapts to people of different heights, goods loading is more stable, the baffles are convenient to mount and dismount, and better use prospects are brought.

The invention discloses a liquid level detection device. The liquid level detection device comprises a controller, an input module, a trigger alarm switch, an alertor, a buoyancy lifting device, a guide rail mechanism, a trigger motor, a pulling device, a stepping mechanism, an arc fanning mechanism, a clearance maneuver device and an alloy shell. Through arrangement of an air pump, an air tube, an air outlet valve and an air outlet pipe, air pressure in an air cavity in a floating ball can be adjusted, and the effect of adjusting sensitivity of the floating ball is achieved. The liquid leveldetection device can be applied to liquid level detection with different specific gravity, the universal property is high, and market popularity is facilitated. Through arrangement of an electric telescopic rod, height of the floating ball can be adjusted, and further the effect of adjusting detected target liquid level can be achieved.

The invention relates to an intravenous needle handle discharging device which comprises a rack, a feeder and a conveying material channel used for conveying needle handles, wherein the feeder is provided with one or a group of output ports, fixed on the rack, and capable of orderly conveying the needle handles onto the conveying material channel in the unified direction of the output ports. By adoption of the above technical scheme, the needle handles can be orderly conveyed, positioned and transferred, automatic feeding of the needle handles can be realized, and an automation foundation is provided for subsequent assembling operation; compared with manual feeding, the intravenous needle handle discharging device has the advantages that the working efficiency is improved and the pollution possibility is lowered; huge energy consumption and huge production space are not needed, so that the feeding cost is greatly reduced; meanwhile, a material stopping mechanism is arranged, so that accumulation of the needle handles as well as the impacts on output and assembling operation of the needle handles can be effectively avoided; and the assembling efficiency is improved.

The invention discloses an underground coal mine gas purification device and a purification method thereof, and relates to the technical field of gas purification, in particular to an underground coal mine gas purification device and a purification method thereof. The device comprises a gas purification box and a cleaning brush, a driving air cylinder is installed in the gas purification box, the right side of the driving air cylinder is connected with a telescopic rod, a linkage plate is connected to the right side of the telescopic rod, a fixing pile is installed on the right side of the linkage plate, the cleaning brush is installed at the position, away from the horizontal center line of the fixing pile, of the telescopic column, a water absorption cotton plate is arranged above an elastic plate, and heating rods are installed on the left side and the right side of the upper portion of the water absorption cotton plate correspondingly. According to the underground coal mine gas purification device and the purification method thereof, a driving air cylinder is arranged and can drive a linkage plate to move rightwards through a telescopic rod, a fixed pile and a cleaning brush can be driven to move along with the linkage plate in the rightward moving process, and the moving cleaning brush can sweep a separation net plate and the gas purification box.

The invention discloses a coal mine underground gas purification device and a purification method thereof, relating to the technical field of gas purification, in particular to an underground coal mine gas purification device and a purification method thereof, comprising a gas purification box and a cleaning brush, the gas purification box A driving cylinder is installed inside, and the right side of the driving cylinder is connected with a telescopic rod, the right side of the telescopic rod is connected with a linkage plate, and the right side of the linkage plate is installed with a fixed pile, and the cleaning brush is installed on the telescopic column away from the fixed At the position of the horizontal center line of the pile, a water-absorbing cotton board is placed above the elastic board, and heating rods are installed on the left and right sides above the water-absorbing cotton board. The coal mine underground gas purification device and its purification method are provided with a driving cylinder that can drive the linkage plate to move to the right through the telescopic rod. During the process of the linkage plate moving to the right, it can drive the fixed pile and the cleaning brush to move accordingly, and the moving cleaning brush can be separated. Clean the separation screen and gas purification box.

The invention belongs to the technical field of logistics management, and particularly relates to an intelligent inventory system based on an RFID identification technology and printing equipment. Thesystem comprises an inventory module, an arrangement module, a scanning and printing module, and recording modules. The inventory module includes a main conveyor belt and an inventory mechanism installed on the outside of the main conveyor belt. The rear side of the main conveyor belt is provided with a horizontal conveyor belt. Driving rollers at the left and right ends of the horizontal conveyor belt are respectively connected to a first motor and a second motor. The outsides of a second conveyor belt and a first conveyor belt on the left and right sides of the horizontal conveyor belt areequipped with printing mechanisms. The recording modules are fixedly installed at the tail ends of the second conveyor belt and the first conveyor belt on the rear sides of the printing mechanisms, the inventory module can scan and recognize identification codes on goods for checking and recording, the goods are conveyed to the second conveyor belt and the first conveyor belt in a classified modethrough the arrangement module, and then printing verification work is conducted through the printing mechanisms. And finally, the recording modules record the verification information, so that high-efficiency and low-error-rate automatic checking, arrangement and verification work is realized.