43results about How to "Effective control distance" patented technology

The invention relates to the field of corrugated board hot-pressing devices, in particular to a corrugated board hot-pressing laminating machine. The corrugated board hot-pressing laminating machine comprises a fixed base, a feeding mechanism, a fixed shell, a cutting mechanism, a conveying mechanism, a hot-pressing mechanism, a lifting mechanism and driving mechanisms, wherein the feeding mechanism used for feeding is arranged on one side of the fixed shell on the fixed base, the hot-pressing mechanism used for performing hot pressing on a corrugated board so as the enable to the corrugated board is laminated is arranged in the fixed base and the fixed shell, the two driving mechanisms used for driving are connected to first corrugated rollers and second corrugated rollers correspondingly, the lifting mechanism used for driving the first corrugated rollers to ascend and descend is arranged on the fixed shell, the cutting mechanism used for cutting the corrugated board subjected to hotpressing is arranged in the fixed shell, and the conveying mechanism used for conveying the cut corrugated board is arranged on the fixed base. According to the corrugated board hot-pressing laminating machine, the distance and the hot-pressing force between the two corrugated rollers can be effectively controlled.

The invention discloses a sand blasting head position adjusting device based on position detection and a sand blasting device. The adjusting device comprises an installing plate used for fixing a sand blasting head and further comprises a position detecting device and a drive mechanism. The installing plate is installed on the drive mechanism. The drive mechanism is used for adjusting the position of the installing plate. The position detecting device is used for detecting the relative position between the sand blasting head or the installing plate and a workpiece. The signal output end of the position detecting device is connected with a control unit of the drive mechanism. An output signal of the position detecting device serves as a control signal of work of the drive mechanism. The sand blasting device comprises the sand blasting head, a rack and the adjusting device. The position adjusting device is simple in structure, the distance between the sand blasting head and the surface of a pipeline can be effectively controlled, and therefore the effects of guaranteeing safety of site operators, reducing steel grit consumption speed and being beneficial to environmental protection are achieved. The sand blasting device is high in sand blasting quality reliability, meanwhile, safety is good, the steel grit consumption speed is low, and the position adjusting device is environmentally friendly.

The invention discloses silicon nanowire-organic functional compound composite and a preparation method thereof. The preparation method of the silicon nanowire-organic functional compound composite comprises the following steps: 1) treating the surface of the silicon nanowires with solution of HF and obtaining treated nanowires; and 2) under water-free and anaerobic conditions, reacting the treated silicon nanowires with an organic functional compound having alcohol hydroxyl, which is represented by the formula (I), to obtain the silicon nanowire-organic functional compound composite, wherein in the formula (I), n is an integer which is more than or equal to 1, and R is a functional group with a fluorescence property. The method is simple and easy to implement; and because the distance between the silicon nanowire and the organic functional groups can be controlled effectively, the method is an effective method for constructing silicon nanowire single-layer organic functional groups. Result of analysis on the modified surface of the silicon nanowires by using infrared spectrum indicates the silicon nanowires and the organic functional groups are bonded in a Si-O-C mode. The formula (I) is HO-(CH2)n-N=CH-R.

The invention discloses a lifting fountain device and particularly relates to the technical field of fountain equipment. The lifting fountain device comprises a performance pool. A fountain mechanismis arranged in the performance pool. A lifting mechanism is arranged on the bottom of the fountain mechanism. A pipeline folding mechanism is arranged on the bottom of the lifting mechanism. A power mechanism is arranged on one side of the performance pool. According to the lifting fountain device, the pipeline folding mechanism is arranged, the ascending track of a third connecting plate and a second connecting plate can be limited, thus the motion range of hoses can be limited, damage to other equipment by the hoses is effectively prevented, a pipeline needing to be bent is partitioned intothe first hose and the second hose, and the bending difficulty of the bent pipeline is reduced; and by arranging a bearing rod and a bearing plate, the distance between the adjacent connecting platesis effectively controlled, the situation that the hoses are pressed by the connecting plates and damaged is effectively prevented, compared with the prior art, the motion range in the hose bending process is narrowed, and the service life of the device is prolonged.

The invention discloses a cutter, including a cutter handle and a blade. The blade comprises a cutting edge and a cutter back. One surface of the blade is provided with an arc device. The arc device comprises an arc plate and a connecting portion abutted on the blade. A concave surface of the arc plate faces the blade. The arc device can effectively control distance between a hand and the blade, and a user can cut vegetables safely. The arc device is smooth in surface, and friction force is low when the arc device contacts with a hand, and the arc device does not hurt a hand. One end of the blade, close to the cutter back, is provided with a long groove which is a through groove. A bolt can slide in the long groove, to adjust a fixing position of the bolt and adjust the arc device to a position suitable for a hand to use. The cutter is humanized in design. The cutter is simple in structure, and safe and convenient in use.

The invention discloses a bridged complex formed by a metal cobalt carbonyl cluster and La and Ce, a preparation method thereof and application of the complex in synthetic gas-to-oil (F-T reaction) fixed bed and slurry bed catalytic reactions. The complex has a general structural formula as described in the specification. The preparation method for a catalyst in the invention is simple and convenient; the elements of an auxiliary agent and active components are introduced in the form of molecules, the auxiliary agent and the active components are uniformly distributed, the effects of the auxiliary agent is more substantial, and activity and selectivity of the catalyst are effectively improved.

The power transmission line double-wire pulley comprises a mounting plate and wire wheel assemblies, wherein the wire wheel assemblies are arranged on the left side and the right side of the top of the mounting plate correspondingly, each wire wheel assembly comprises supporting plates and a first wire wheel, the supporting plates are divided into a front set and a rear set, and the first wire wheels are rotatably mounted below the position between the front set of supporting plates and the rear set of supporting plates; sliding grooves are formed in the upper portions of the inner sides of the two sets of supporting plates correspondingly, sliding blocks are movably installed in the sliding grooves, a second wire wheel is rotatably installed between the two sets of sliding blocks, threaded lead screws are rotatably installed in the sliding grooves, and the threaded lead screws penetrate through the sliding blocks and are in threaded fit with the sliding blocks. A second wire wheel anda first wire wheel are designed, the second wire wheel is installed on an upper wire, the first wire wheel is installed on a lower wire, the problem that the distance between two wires is large during double-wire line span inner repairing can be effectively solved, the first wire wheel can be driven to rotate by rotating a crank, an operator can move in a more labor-saving mode, operation is moreflexible and convenient, and the repairing efficiency is improved; and working efficiency is improved.

The invention discloses a method for field burning destruction with mixing and matching of multiple explosives. The method comprises the steps that (1) a shooting range is selected for burning destruction, wherein the site satisfies requirements; (2) timber is paved on the site and the multiple explosives are paved on the timber, wherein the multiple explosives comprise hexogen, an emulsion explosive, pentolite and scaly TNT, the hexogen and the emulsion explosive are of a bar-shaped structure, the hexogen and the emulsion explosive are distributed alternatively along the length direction of the timber, the pentolite is distributed along two sides of the length direction of the timber, and the scaly TNT is located between the pentolite; (3) diesel oil is sprinkled on the explosives and thetimber, an ignition device is paved on the explosives, and an ignition site of the ignition device is located outside a safety distance; and (4) ignition is conducted at a leeward location, wherein the ignition device is used for igniting the timber and the diesel oil, so the explosives can be ignited. The method for field burning destruction with mixing and matching of the multiple explosives disclosed by the invention has the beneficial effects that spacing, thickness and so forth of the explosives are effectively controlled through rational arrangement of the explosives, so speed and efficiency of combustion of the explosives can be effectively controlled; combustion of the multiple explosives cannot be interrupted or converted to detonation; efficiency is high; and safety is good.

The invention provides a utility insulation board, comprising a board body. The board body comprises a plaster board layer, a foamed polyurethane insulation board layer and a foamed cement board layer. A connecting board is mounted on one side of the insulation board body. An insert board is mounted on one side, far away from the insulation board body, of the connecting board; one side, far away from the connecting board, of the insulation board body is provided with a receiving groove; the receiving groove fits the connecting board and the insert board; a positioning device is disposed on one side of the receiving groove inside the insulation board body; the positioning device comprises a roller, a connecting cord and a positioning bar; the roller is partially located in the receiving groove; the positioning bar is movably mounted in the insert board and is partially movable in the receiving groove; the roller is connected with the positioning bar through the connecting cord; the insert board is provided with a fastening groove corresponding to the positioning bar. A distance between two adjacent insulation boards can be effectively controlled, and dropping rarely occurs even when part of the insulation boards are contacted with a wall under poor tightness.

The invention discloses an isobutane dehydrogenation catalyst and a preparation method and application thereof. According to the catalyst, alpha-Al2O3 spheres which are subjected to zinc oxide surfacemodification and heat treatment to form a thin-layer zinc aluminate spinel structure are used as a carrier; a first active layer and a second active layer which are different from each other are sequentially arranged on the surface of the carrier from inside to outside, the first active layer is a platinum oxide layer or a tin oxide layer, and the second active layer is a platinum oxide layer ora tin oxide layer. The isobutane dehydrogenation catalyst has high selectivity, stability and activity, good high-temperature stability, strong carbon deposition resistance and low relative deactivation rate, the active components are distributed on the carrier in an eggshell structure, the utilization rate of the active components is increased and the catalyst has a good industrial application prospect.

The invention belongs to the technical field of ship bolt hole machining tool installation, and discloses a shaft flange boring machine which comprises a boring rod fixing tool, a positioning sleeve, a boring rod, a boring cutter and a boring rod driving and feeding assembly, wherein the boring rod is rotatably arranged on the boring rod fixing tool; the boring rod is sleeved with the positioning sleeve in a sliding mode; the boring cutter is detachably arranged on the boring rod; the boring rod is connected with the boring rod driving and feeding assembly; and during boring preparation operation, the positioning sleeve is sleeved outside the boring rod, and a stable distance between the side wall of the boring rod and the inner wall of the flange hole is maintained. According to the shaft flange boring machine, the control precision can be improved, and the risk that the inner wall of a falling space is scratched is reduced.

The invention provides a soldering method and soldering device for storage tank flip method, the soldering method comprises the steps of a, preparing a trolley for a bury arc soldering machine; b, rotationally connecting a soldering tip monitor pipe at the other end of the cross beam, mounting the soldering tip at the other end of the soldering tip monitor pipe; c, mounting a spring between a spring back plate and the soldering tip monitor pipe; d, fixedly mounting a soldering tip assist walk mechanism in the middle of the soldering tip monitor pipe; e, fixedly mounting a ring shape soldering machine walk rail set along the circumferential direction through a screw bolt at the top end of a rail installation support; f, placing the trolley of the bury arc soldering machine on the soldering machine walk rail, before the soldering, the operation staff turning around the soldering tip monitor pipe and keeping aligned an opening of the soldering tip and a soldering seam, adjusting the walk monitor wheel and keeping connected with a storage tank side wall steel, switching on a control box to start the soldering operation. The soldering method and the soldering device produces good effects in the method of automatic bury arc soldering and non bury arc automatic soldering in the flip large scale steel structure storage tank scheme.

The invention discloses a railway tunnel large-section steel bar hanging and distributing integrated trolley. The integrated trolley comprises a portal frame, and a working platform is fixed to the peripheral side of the portal frame; a traveling system is mounted at the bottom of the portal frame; a steel bar laying supporting system is fixed to the top of the portal frame; the integrated trolley further comprises an automatic waterproof plate laying traction system, and the automatic waterproof plate laying traction system comprises an arc-shaped rail fixed to the outer periphery side of the portal frame, a laying assembly slidably connected with the arc-shaped rail, and a rotary telescopic arm installed on the portal frame and used for pulling the laying assembly to slide along the arc-shaped rail, and the other end of the rotary telescopic arm is connected with a driving device for driving the rotary telescopic arm to rotate. According to the railway tunnel large-section steel bar hanging and distributing integrated trolley, by means of the automatic waterproof plate laying traction system, waterproof plate laying operation can be completed only by 3 persons-4 persons, and the waterproof plate construction efficiency is remarkably improved; the waterproof plate is laid smoothly without wrinkles, the quality is guaranteed, and the later tunnel defect renovation cost is reduced; and in addition, through the steel bar laying supporting system, steel bar spacing can be effectively controlled, and the construction quality is improved.

The invention relates to a multifunctional parking lot for an automobile charging station. The multifunctional parking lot comprises a parking lot body and an electric controller. A plurality of parking spaces are arranged on the parking lot body side by side. A corresponding separation groove is formed between every two adjacent parking spaces, a smoke isolation mechanism is arranged in each separation groove, each smoke isolation mechanism comprises an inverted-U-shaped fixed partition plate which can be installed in the corresponding separation groove in a lifting mode, the middle positionof each inverted-U-shaped fixed partition plate is sleeved with a corresponding movable partition plate in an up-down moving mode, and the position of the each smoke isolation mechanism is controlledby a corresponding driving mechanism. Under the conventional condition, the multifunctional parking lot has a separation function, the distance between the electric vehicles during charging can be effectively controlled, and normal air circulation cannot be affected. In addition, the charging process of the electric vehicle can be monitored in real time, when a fire occurs, isolation operation canbe rapidly conducted, and therefore the burnt electric vehicle can be rapidly isolated, and the fire is effectively prevented from being further expanded.

The invention relates to a rail car anti-collision system and method and amusement equipment. The rail car anti-collision system comprises a main control device, a first sliding contact line and a second sliding contact line. The second sliding contact line comprises a normal-pressure segmented sliding contact line, a voltage transformation segmented sliding contact line and a segmented joint; ifthe main control device detects that the rail car exists in the rail section where the normal-pressure segmented sliding contact line is located, the main control device controls the voltage transformation segmented sliding contact line corresponding to the normal-pressure segmented sliding contact line to be disconnected with the direct-current power supply, so that the safety buffer area where the voltage transformation segmented sliding contact line is located does not have control voltage allowing the rail car to pass through; and if the main control device detects that the rail car does not exist in the rail section where the normal-pressure segmented sliding contact line is located, the main control device controls the transformation segmented sliding contact line to be connected andconducted with the direct-current power supply, so that a control voltage allowing the rail car to pass through exists in the safety buffer area. Thus, the main control device is directly used for controlling the sliding contact line to be powered on, the response is faster and is not limited by network communication any more, and the safety and stability of rail car anti-collision control and the safety of rail cars and passengers are improved.

The invention relates to a novel electronic detonator ignition element. The novel electronic detonator ignition element comprises two connecting copper layers, wherein crimping parts are arranged on the two connecting copper layers respectively. The novel electronic detonator ignition element further comprises a packaging layer, wherein a packaging gap for partially exposing heating wires is formed in the packaging layer. The two connecting copper layers are both provided with welding parts located outside the packaging layer. The connecting copper layers are packaged and wrapped, the distance between the two sides can be effectively controlled, the distance is the final length of the heating wires, the lengths of the heating wires are consistent, and the resistance consistency of the ignition element is guaranteed. The joints of the connecting copper layers and the heating wires are packaged and wrapped, so that oxidation caused by exposure to air can be effectively avoided, contact resistance increase caused by loosening of the joints due to the influence of environment and time factors is prevented, and the resistance consistency of the ignition element is ensured. Only a small part in the middle of each heating wire is exposed, and the heating wires are protected by the packaging gap and are not prone to being damaged by external force. Compared with an existing ignition element, the ignition element is smaller in overall size and more flexible in design.

The invention discloses an automatic coiled film tightening device. The automatic rolled film tightening device comprises a discharging mechanism, a film pressing mechanism, a motor and a collecting mechanism, the motor is connected with the collecting mechanism, a rolled film is placed on the discharging mechanism to be fixed, the film pressing mechanism comprises a tensioning wheel, a transition wheel and a driving wheel, the rolled film is sequentially wound around the tensioning wheel, the transition wheel and the driving wheel and then fixed to the collecting mechanism, and the motor is connected with the collecting mechanism. The motor drives the driving wheel to rotate, the driving wheel drives the rolled film to move, and the film roll is rotated and tightened. The device has the effects that the rolled film can be automatically tightened, the production efficiency and the product yield are improved, and the labor intensity of workers is reduced.

The invention discloses a naked-eye 3D display system suitable for laser projection, According to directional light source projection display technology, by placing the light-emitting projection pathof the pointing projection combination in a vacuum-sealed enclosed space, so that the directional light source can project onto the projection screen completely and stably, thereby effectively improving the picture quality of the projection and the display effect of the naked eye 3D; and the directional light source has no air interference and is projected in a vacuum environment, thereby avoidingthe obstruction of the air flow and the sundries in the gas to the light; At that same time, the dust in the seal space can be effectively absorbed by the dust suction device, the preferred cryopumpand cooling fan can effectively control the temperature of the enclosed space, The spacing between the projection device and the projection screen can be adjusted conveniently by setting the gasket, and the shock absorbing mechanism can effectively avoid the influence of the external vibration on the display system. The display system has the characteristics of reasonable structure layout, stronganti-interference ability and good display effect.

The invention discloses a portable adjustable wall reinforcing steel bar positioning device which comprises a vertical square pipe, a plurality of positioning cross rods are movably arranged on the vertical square pipe in a penetrating mode from top to bottom at intervals, and each positioning cross rod is divided into a smooth section and a threaded section; an end nut is hinged to the end, located on the smooth section, of the positioning transverse rod and welded to a fixing clamp. The threaded section of the positioning cross rod penetrates through the vertical square tube, an adjusting nut and a locking nut are movably connected to the threaded section in a threaded mode, the adjusting nut and the locking nut are located on the two sides of the vertical square tube respectively, the adjusting nut and the end nut are located on the same side of the vertical square tube, and the adjusting nut is welded to an adjusting clamp. The wall reinforcing steel bar positioning device achieves accurate and rapid positioning of wall reinforcing steel bars, can be used repeatedly, and is suitable for popularization.

The invention relates to the technical field of fireproof plate fire resistance detection, in particular to a fireproof plate fire resistance detection device which comprises a shell provided with a distance control module, a flaming module and a feeding module. The distance control module comprises two I-shaped sliding blocks in sliding connection with the shell, limiting plates located in the shell and movably connected with the I-shaped sliding blocks, a fireproof plate detachably connected between the two limiting plates, and a motor connected with the limiting plate close to the top of the shell. The motor output shaft drives the limiting plate connected with the motor output shaft to rotate, then the fireproof plate rotates along with the motor output shaft, during the period, the spring extrudes the rope body to enable the I-shaped sliding block to continuously move towards the rear side of the shell, one face of the outer wall of the fireproof plate makes contact with the two baffles all the time, and then under the limitation of the baffles, the distance between each face of the fireproof plate and the flame projector is effectively controlled; reciprocating adjustment of the distance between the fireproof plate and flame is not needed, the use method is simple, and the detection efficiency is improved.