81results about How to "Improve installation and maintenance efficiency" patented technology

The invention discloses an installation method of a firefighting pipe fitting. The method comprises the following steps of: a, cutting multiple sections of steel pipes of the same diameter on a construction field according to a designed length; b, processing an inwardly-concave annular neck surrounding a circumferential surface on the outer circumferential surfaces of end faces close to the two ends of each section of cut steel pipe respectively; c, spraying anti-rusting paint onto the outer surface of each section of steel pipe on which the neck is processed, and spraying finish paint to form multiple sections of firefighting pipes which are consistent with the designed length; and d, connecting the multiple sections of firefighting pipes into an indoor firefighting pipeline by using a plurality of clamping bands, and sealing the joints of the firefighting pipes and the clamping bands by using sealing pieces. The installation method has the characteristics of convenience and rapidness in processing and installing, easiness in maintaining, high installation efficiency, low cost and the like.

A light-emitting type digital display furnace roller precision measurement device provided by the present invention comprises an examination shaft, dial indicators, a frame-type gradienter, a connection swinging rod and a digital display dial indicator. The two dial indicators are connected with the examination shaft movably, the center lines of the measuring rods of the dial indicators are parallel with the shaft center line of the examination shaft, and the frame type gradienter is arranged on the outer circumferential wall of the examination shaft. One end of the examination shaft is connected with a roller shaft of a furnace roller detachably and coaxially, and the other end is connected with the lower end of the connection swinging rod vertically. A contact type indicating lamp is arranged on the upper end face of the connection swinging rod, the upper end of the connection swinging rod is connected with a cross bar connected with the digital display dial indicator, and a switch circuit of the contact type indicating lamp is connected with the digital display dial indicator and a reference steel wire separately. The light-emitting type digital display furnace roller precision measurement device can measure the efficiency and the precision, enables the labor intensity of workers to be reduced, can eliminate the potential safety hazards, and can effectively relieve the problem that there is not existed enough time to overhaul a travelling crane annually.

The invention provides an air conditioner. The air conditioner comprises an outdoor unit (1), an indoor unit (2) and a refrigerant pipeline (3) connected between the outdoor unit (1) and the indoor unit (2). The refrigerant pipeline (3) comprises a first pipeline part (31) located in the indoor position and a second pipeline part (32) located on the outdoor position, and a first refrigerant filling nozzle (41) capable of carrying out vacuumizing or refrigerant filling on the refrigerant pipeline (3) is arranged on the first pipeline part (31); and/or, a connecting pipe (5) is further connectedto the second pipeline part (32), one end of the connecting pipe (5) can communicate with the interior of the refrigerant pipeline (3), and the other end of the connecting pipe (5) extends into the indoor position and is connected with a second refrigerant filling nozzle (42) capable of carrying out vacuumizing or refrigerant filling on the refrigerant pipeline (3). By means of the air conditioner, vacuumizing and refrigerant filling can be carried out on an air conditioner system on the indoor side, mounting and maintenance is simpler and more convenient, and the safety coefficient is improved.

The invention discloses a pressure relief valve easy to install. The pressure relief valve comprises a valve body, a partition plate and a mounting block, and a sliding groove is formed in the inner wall of the valve body; the partition plate is clamped in the sliding groove slidably, and a stepped mounting hole is formed in one side of the valve body; a pressure relief opening is formed in the partition plate, and the end face of one side of the partition plate is rotatably connected with a sealing cover; a threaded hole is formed in the mounting block, and a guide wheel is rotatably mountedon the end face facing the interior of the valve body; a locking snap ring is mounted between the mounting block and the mounting hole; a stud is arranged in the threaded hole in a threaded sleeving mode, a stay rope is connected with the stud; and the stay rope is rotatably wound around the guide wheel, and a spring is connected between the tail end of the stay rope and the sealing cover. The pressure relief valve east to install is simple in structure, and the sliding groove and the mounting hole are formed in the valve body, so that rapid disassembly and assembly of the partition plate andthe mounting block are achieved; internal components can be replaced, maintained and cleaned without disassembly of the whole valve body, and the disassembly and assembly time is saved; and the stud is rotated to drive the spring to stretch for adjustment, so that the pressure relief threshold is changed, and the adjustment is convenient and efficient.

The invention discloses an automatic dumping garbage can based on motor driving, and relates to the technical fields of environmental sanitation and environmental protection. The automatic dumping garbage can comprises a supporting device, a box and a chuck; the box is fixedly hung on the supporting device and rotatably dumps garbage through motor driving, and a circular clamping base is fixed to the end of a supporting column; the clamping base is connected with the box in the mode of cooperating with the chuck; and a circular groove is in interference fit with a transmission rod. According to the automatic dumping garbage can based on motor driving, a servo motor is arranged to control the box to rotate, a sanitation worker does not need to manually dump garbage, automatic garbage dumping is achieved, cleaning work of the sanitation worker is convenient, and the advantages of being simple in structure, convenient to use and practical are achieved; by arranging the supporting device, the box is supported, vertical rotation of the box is achieved, therefore, the assembling mode among structures is reduced, structural materials are reduced, the production cost is reduced, and the installing and maintaining efficiency is improved.

The invention discloses a base based on a four-post lift. It includes a base, a first sliding device, a second sliding device and an adsorption device; the surface of the base is provided with several studs; a surface of the base is provided with a first chute; the first sliding device is connected with the base; The slot slides in the direction, and the second sliding device is connected with the first sliding device; the second sliding device slides up and down along the second chute; the second sliding device is connected with the adsorption device; the adsorption device is provided with an electromagnetic suction cup. By setting the base to fix the lift support device, the invention disperses the torsional force of the column, does not have high requirements on the foundation, has wide applicability and is convenient to use. By arranging the chute to make the sliding device slide, the assembly method between the structures is reduced, the structural material is reduced, the production cost is reduced, and the installation and maintenance efficiency is improved. By setting the electromagnetic sucker to fix the lifting device of the lift, the lifting device can be prevented from shaking during the lifting process, which is safe and reliable, and protects the maintenance personnel.

The invention relates to the technical field of hardware products, in particular to a front strap type portable hardware tool storage box for overhead operation. The front strap type portable hardware tool storage box comprises a storage box body comprising a rectangular main box. The left side of the rectangular main box is provided with a cavity box A and a cavity box B, a metal part cavity box is arranged in the middle of the rectangular main box, and the right side of the rectangular main box is provided with a cavity box C and a cavity box D. A nonmetallic part cavity box is arranged on the front portion of the metal part cavity box. The cavity box A and the cavity box B are respectively provided with a transparent cavity box cover A and a transparent cavity box cover B, and the left side and the right side of the transparent cavity box cover A and the transparent cavity box cover B are respectively provided with a reset spring A and a reset spring B. The portable hardware tool storage box is fixed on the human body via a front strap and provided with several tool cavity boxes with the reset springs and the transparent covers, so that tools can be taken and stored conveniently and cannot fall from the overhead, mounting and maintenance of professional maintenance operators are greatly facilitated, and mounting and maintenance efficiency is improved.

The invention discloses a six-way cascading rapid cable entry device which comprises a link joint (2). A rubber ring (6) for fastening a cable is installed inside the link joint. Three holes are formed in the rubber ring. A steel plug board II (5) is installed at one end of the rubber ring. A steel plug board I (4) adjacent to the steel plug board II is installed inside the link joint. A steel gasket (3) is installed on one side of the steel plug board I. The steel gasket is connected with a compression nut (1) capable of extruding and fastening the rubber ring. The six-way cascading rapid cable entry device has the advantages that bolt-free quick plugging connection of at most four electrical devices with A1-type anti-explosion quick connectors can be achieved, meanwhile, the devices are in cascade connection through the anti-explosion quick connectors, the installation and maintenance efficiency of explosive-proof electrical products is improved, and labor intensity is lowered. The six-way cascading rapid cable entry device is internally provided with a high-intensity inflaming-retarding Kevlar weaving layer, the explosive gas volume inside the six-way cascading rapid cable entry device is decreased, and the anti-explosion performance of the six-way cascading rapid cable entry device is improved.

The invention discloses a chassis lifting device based on a four-column lifter. The chassis lifting device comprises a supporting plate, an elastic element, a protective cover and a buckle, wherein the elastic element comprises a base; a spring is fixed on the surface of the base; a spring cover is fixed on the other end of the spring; the elastic element is fixed on the surface of the supporting plate through the base; a groove is formed in the middle of the protective cover; the groove and the supporting plate are mutually matched; anti-slip grooves are formed in the surfaces of both sides of the protective cover; and the buckle is fixed on the surface of the supporting plate. According to the chassis lifting device disclosed by the invention, through the arrangement of the elastic element, an automobile chassis can be better fitted with the supporting plate, and the automobile base can be better protected; the chassis lifting device has the advantages of being simple in structure and diverse in functions; through the arrangement of the protective cover, automobile tires run over the protective cover and then the protective cover is pulled away to protect the elastic element and the supporting plate; the chassis lifting device has the advantages of being high in durability, long in service life and the like; and the supporting plate is fixed through the buckle, an automobile is lifted through a wire rope, and an assembling manner between structures is reduced, so that structural materials are reduced, the production cost is reduced, and the mounting efficiency and the maintenance efficiency are improved.

The invention discloses an A1 type anti-explosion quick coupler for an underground coal mine. The A1 type anti-explosion quick coupler comprises an anti-explosion steel jacket female head (9), wherein an anti-explosion steel jacket male head (10) is connected with one end of the anti-explosion steel jacket female head. The A1 type anti-explosion quick coupler has the benefits as follows: the device adopts a bolt-free two-stage explosive-proof structure, is in accordance with the explosion-proof criteria in the coal mine and free of other fastening tools, can realize manual and quick butt joint operation of the anti-explosion electric apparatus, obviously reduces the labor intensity of operation workers, and improves the efficiency of installation and maintenance of the anti-explosion electric apparatus; a Kevlar flame-retardant braid layer is arranged in the inner cavity of the device, so that the inner cavity explosive-proof gas volume can be reduced, and the explosive-proof capability can be obviously improved.

The invention belongs to the field of high-power solid lasers, and particularly relates to a novel combined sheet-shaped laser amplifier window assembly. The assembly comprises a window frame sealingelement, a window frame, a window glass lower sealing element. The window glass, a window glass pressing pad and a pressing frame are sequentially arranged from inside to outside, and a first hook and a second hook which are symmetrically arranged are arranged at the upper end of the window frame and match a first positioning block and a second positioning block which are arranged on an amplifierclean box body for use. A window frame sealing piece is arranged on a mounting face, attached to an amplifier clean box body, of the window frame. Installation and detachment are more convenient, thepositioning accuracy is higher, accurate positioning and sealing can be completed under the action of self-gravity through translation and side hanging, the sealing performance is better, aerosol leakage is effectively prevented, and the assembling efficiency is higher.

The invention discloses a coil-forming transmission mechanism of a warp knitting machine. The coil-forming transmission mechanism comprises a groove pin mechanism, a pin core mechanism, a coil slippage mechanism, a settling mechanism and an oil tank main shaft, wherein the groove pin mechanism comprises a groove pin main shaft, a groove pin swing arm, a guide arm, a groove pin bed bracket, a groove pin bed and a groove pin connecting rod mechanism; the front end of the groove pin swing arm is rotatably connected with the upper end of an oil tank output rod; the rear end of the groove pin swing arm is fixedly connected with the groove pin main shaft; the front end of the guide beam is in sliding connection with the groove pin bed bracket; the rear end of the guide arm is fixedly connected with the groove pin main shaft; the pin core mechanism comprises a pin core bed, a pin core bracket, a short shaft and a pin core oil tank output rod; the coil slippage mechanism comprises a coil slippage pin bed; the settling mechanism comprises a settling pin bed, a settling swing arm and a settling connecting rod; the lower end of the pin core bracket is rotatably connected with the upper end of the pin core oil tank output rod directly; the lower end of the pin core oil tank output rod is in rolling connection with a pin core cam; and the coil slippage pin bed is fixedly mounted on the guide arm. According to the coil-forming transmission mechanism disclosed by the invention, the mechanism is simplified, the mounting time is reduced, and the working reliability, and the mounting precision and efficiency are improved.

The invention provides a hard disk fixing device and a host, relates to the technical field of computers, and aims to solve the problems of complex hard disk installation and maintenance operation andlow working efficiency. The hard disk fixing device comprises a handle, a locking piece, a transmission piece and a hard disk frame, a locking hole is formed in the first side surface of the hard disk frame; the locking holes are used for fixing parts of the hard disk to extend out of the hard disk frame; the handle is connected with the first side face through a rotating shaft, the transmissionpiece is rotationally connected with the handle, the locking piece is rotationally connected with the transmission piece, the rotating center line of the transmission piece rotating relative to the handle and the rotating center line of the locking piece rotating relative to the transmission piece are both parallel to the center line of the rotating shaft, and a locking bayonet in the locking piece is clamped with the fixing piece. According to the hard disk fixing device, the locking piece, the transmission piece and the handle are used for locking the hard disk in the hard disk frame and unlocking the hard disk, the hard disk can be assembled and disassembled under the condition that the hard disk frame is not disassembled, and the installation and maintenance efficiency of the hard diskis improved.

The invention discloses a material guiding mechanism of a hook bolt forming machine. The material guiding mechanism comprises a bottom plate, an upper guide block, a lower guide block, guide wheels, a plurality of installation plates, adjusting handles and a material wire. The upper guide block is installed at one end of the bottom plate, the lower guide block is installed at the other end of the bottom plate, the upper guide block and the lower guide block are located on the same central line of the bottom plate, the installation plates are further installed at the upper end of the bottom plate, wheel shafts and handle shafts are installed on the installation plates, the wheel shafts are located on the tops of the installation plates, the handle shafts are located on the side faces of the installation plates, the guide wheels are installed on the wheel shafts, the adjusting handles are installed on the handle shafts, the material wire penetrates through the upper guide block and the lower guide block to be in fit contact with the guide wheels, and fixing plates are distributed on the opposite sides of the bottom plate in a spaced mode. By means of the material guiding mechanism of the hook bolt forming machine, the material wire can be well guided to be straight, and the working quality can be ensured; meanwhile, the installation and maintenance efficiency is improved due to the simple structure.

The invention discloses a solar cell panel based on waterflow heat-absorption cycle. The solar cell panel comprises a base, a reflector, a coiled pipe, a cover plate and a substrate; a first bump is arranged on the base; the reflector is fixed on the surface in the base; a plurality of protrusion surfaces are arranged on one surface of the reflector in a row; the coiled pipe is fixed on the reflector through the substrate; a solar cell is fixed on one surface of the substrate; a plurality of studs are arranged on the other surface of the substrate; a second bump is arranged on one surface of the cover plate; the cover plate is provided with a transparent plate; and the second bump and the first bump are relatively matched. By means of the solar cell panel based on waterflow heat-absorption cycle disclosed by the invention, the solar cell and the coiled water pipe are matched, so that a device capable of generating electricity and heating water simultaneously is formed; the substrate is arranged, and used for installing the solar cell and the coiled pipe; the assembly manner among structures is reduced; the installation and maintenance efficiency is increased; while the cell panel is separated by the reflector with the convexity, light irradiates the surface of the coiled water pipe, and is used for heating the coiled water pipe; and thus, the solar cell panel is reasonable in structure and high in energy utilization rate.