35results about How to "Quick maintenance and replacement" patented technology

The invention provides a permanent-magnetic brushless motor, the Hall position sensor and the motor stator of which are separately positioned. The brushless motor of the invention pertains to technical filed of motors, is characterized by being provided with a phase-change sensing device of the Hall position sensor separately positioned with the motor rotor and has the structure that: a permanent-magnetic phase-change rotor and a phase-change Hall position sensor support which is matched with the rotor are arranged; the permanent-magnetic phase-change rotor and the motor permanent-magnetic rotor are connected with each other and synchronized; the Hall position sensor support and the motor stator are fixedly connected; the Hall position senor is fixedly arranged at the phase position the Hall position sensor support, which is opposite to the permanent-magnetic phase-change rotor. The invention is characterized by effectively preventing the damage to the Hall position sensor caused by overheating, thereby greatly reducing the repair rate of the brushless motor, improving working efficiency, causing the repairing to be more convenient, flexible and fast with low cost and having long service life. In addition, the brushless motor of the invention can be applied to various motors.

The invention relates to quality grading water supply reforming method and system with a roof water tank and a building water supply pipe network. The reforming method comprises five steps of prophase preparation stage, metaphase water tank reforming stage, metaphase building water supply pipe network reforming stage, metaphase individual indoor water supply pipe network reforming stage and anaphase running management stage. The reforming system comprises a water chamber, a gas chamber, a purifying chamber and a building quality grading water supply pipe network system, wherein the water chamber comprises direct drinking, living and washing water source rooms; a building quality grading water supply main pipe network for direct drinking, living and washing is correspondingly connected with a quality grading water terminal and a water tank quality grading water discharging total opening respectively according to same function; the gas chamber comprises a unit modularized assembly type breathing bladder bag group; and the purifying chamber is provided with an assembly type unit modularized quality grading purification water supply unit. The invention prevents the secondary pollution of water and volatile waste of residual chlorine and has the effects of no cleaning, no water stop, full utilization, no waste, energy saving, emission reduction and quality grading water supply as required.

The embodiment of the invention discloses a wearable intelligent U shield, which comprises a data storage unit, a control management module, a data exchange module, a communication module, an information collection module, a storage battery module, a display module and an operation component. The data storage unit is divided into a general data storage area and an encrypted data storage area. Further, the encrypted data storage area writes U shield data, namely digital security certificate or related license certificate. The wearable intelligent U shield has the advantages of convenient use, diverse functions, easy storage and not easy loss, and easy batch, standardization and specialization.

The invention discloses a vertical mounting clip for a built-in capacitor, which comprises arc plates corresponding to capacitor arcs and is characterized in that a fixing plate and a connecting plate are arranged on the two sides of each arc plate respectively; two mounting holes in the same size are formed on each fixing plate and each connecting plate respectively; a connector is formed on the side of each fixing plate; the connecting plates are matched with the connectors; and 1-3 standing bars are arranged at the bottom of each arc plate. The vertical mounting clip can fix and stabilize the capacitor; the capacitor is not loose easily; the surface of the capacitor cannot be pierced to damage the capacitor; the vertical mounting clip adopts splicing connection and can fix multiple capacitors at the same time; the floor area is saved; the maintenance and change are convenient; the mounting and dismounting are quick; and the connection are secure.

The invention relates to a driving gear of a large type excavator for open-pit mine. The driving gear comprises a gear body and gear teeth, wherein the gear body and the gear teeth are arranged in a separated way; the gear body is provided with a one-piece annular flange with equal thickness along a round of the middle circumference of the outer edge of the gear body; the thickness of the annularflange is less than that of a gear disc of the gear body, so that symmetrical outwardly extending annular shoulders are formed at the two sides of the bottom of the annular flange; the gear teeth respectively consist of two symmetrical ring-shaped gear rings, each ring-shaped gear ring is evenly provided with a plurality of wheel teeth along the circumference; inner rings of the ring-shaped gear rings and an annular convex shoulder of the gear body are in spline connection with each other in a matching way; the ring-shaped gear rings are symmetrically arranged at the two sides of the annular flange; the ring-shaped gear rings are positioned under the wheel teeth and are fixed with the annular flange by means of countersunk bolts; a U-shaped groove is formed by combining the wheel teeth with the top of the middle annular flange, and an opening formed in the axial tangent plane of the U-shaped is outward. The driving gear of the large type excavator for the open-pit mine solves the technical problem that in the prior art, gears are not wear-resistant or are easily broken, thus being scrapped on the whole; a gear ring only needs to be replaced, but the gear body does not need to be replaced, so that the cost is lowered, and the service life of the driving gear is prolonged.

The invention discloses a water pump control system and a massaging bathtub with the same. The water pump control system comprises water pumps and a controller separated from the water pumps. The water pumps comprise pump bodies and motors arranged in the pump bodies, wherein the motors are brushless and Hall-free direct current motors. The controller comprises a shell and a circuit board. The circuit board comprises a master control circuit board body and motor driving board bodies used for independently controlling the corresponding water pumps. Non-vulnerable electronic elements in a circuit are integrated through the master control circuit board body. According to the water pump control system and the massaging bathtub with the same, the circuit board is completely separated from the water pumps, the electronic elements are moved away from high-temperature environments, humid environments and other environments; and meanwhile the non-vulnerable electronic elements which can be used in common are integrated, and therefore the electronic elements can be comprehensively and efficiently used. With the structure, even vulnerable parts in the circuit break down or are damaged, maintaining and replacing can also be carried out conveniently and rapidly, the whole circuit board and the whole water pumps do not need to be discarded, a large number of economic losses are saved, and waste is reduced.

The invention discloses a radiator assembly technology for a power semiconductor device. According to the technology, firstly, the power semiconductor device is fixed on a heat-conducting substrate, and then a single plate and the heat-conducting substrate with the power semiconductor device fixed are press-welded on a radiator as a whole. The problem that modular production of the power single plate cannot be realized is solved, simple and convenient mounting and maintenance of the single plate are realized, the special application condition of photovoltaic power generation is considered, on one hand, the efficiency of production and machining links can be improved, and on the other hand, storage and transportation of maintenance spare parts as well as quick maintenance and replacement on operation sites can be facilitated. Therefore, the technology is applicable to other fields which have large equipment scales and wide distribution ranges and require quick maintenance besides the photovoltaic power generation field.

The invention discloses an impeller used for an aerator. The impeller includes a blade frame and blades; the blade frame is detachably connected with the blades, the blade frame is of a regular polygon structure, any one side of the polygon structure is provided with a raised line smaller than the side in length, and the blades are provided with clamp grooves matched with the raised lines and a plurality of water through holes. An impeller structure formed by the combination of the detachable blades and an impeller body is adopted, installation, maintenance and replacement can be very rapidly conducted, the firmness is high, the service life is prolonged, and the problem that the whole traditional impeller needs to be replaced after being locally damaged; double-insurance installation is adopted between the blades and the blade frame, on the basis that the clamp grooves are connected with the raised lines, inserting blocks are connected with inserting holes, and the reliability and the firmness of connection are enhanced. The water through holes in the impellers adopt two structures, the first through holes are formed near the connection portions of the blades and the impeller body, the second through holes are formed away from the connection portions of the blades and the impeller body and provided with blocking strips, and the amount of oxygen, entering in water, from air is increased.

The invention relates to a pull-plug type breathing device of a closed container, comprising a shell box and a combined type integral anti-pollution filtering plug-in unit, wherein the combined type integral anti-pollution filtering plug-in unit is arranged in the shell box. The pull-plug type breathing device has the advantages of simple structure, low cost and safety and convenience for use, can not only be used for the technical improvement of the pollution and volatilization prevention of the rational open-type container, but also be merged into the newly produced closed container. The pull-plug type anti-pollution filtering breathing device has the advantages of unit modular design of an assembly, plant standardized production, safety in operation, convenience for maintenance and fast installation.

The invention discloses a high-safety door plank grinding device convenient to maintain. The high-safety door plank grinding device convenient to maintain comprises a grinding plate, a grinding assembly disc, a grinding assembly head, a motor, a motor assembly head, a control head and an electrical connecting handle, wherein the bottom end of the grinding assembly disc is connected with the grinding plate in a locking mode, the top end of the grinding assembly disc is connected with the grinding assembly head in a buckling mode, the top end of the grinding assembly head is connected with the motor in a locking mode, the top end of the motor is inlaid in and connected with the bottom end of the motor assembly head in a buckling mode, and the control head is connected with the right end of the motor assembly head in a locking mode. The high-safety door plank grinding device convenient to maintain has the advantages in use that 1, through a provided electromagnetic braking device, the electromagnetic braking can be started in a pressing mode when the high-safety door plank grinding device convenient to maintain is used to carry out emergency stop working locking, so that the high-safety door plank grinding device convenient to maintain ensures safety better and is convenient to use in emergency situations and in controlling faults; and 2, the high-safety door plank grinding deviceconvenient to maintain can conveniently and stably disassemble and assemble the motor through a provided buckle device, so that the motor of the high-safety door plank grinding device convenient to maintain can be quickly and conveniently maintained and replaced and the high-safety door plank grinding device convenient to maintain is convenient to use.

The invention relates to the technical field of new energy and discloses a photovoltaic power generation panel capable of realizing rapid maintenance and replacement. The power generation plate comprises a body and a supporting base, wherein the left side and the right side of an upper end of the supporting base are respectively fixedly connected with a supporting block, upper ends of one group oftwo supporting blocks are fixedly connected with first supporting rods, upper ends of the two first supporting rods are connected with first mounting mechanisms and are jointly connected with the body through the two first mounting mechanisms, second supporting rods are arranged above the two supporting blocks in the other group, and the two supporting blocks in one group are connected with lifting mechanisms and are connected with the two second supporting rods through the lifting mechanisms. The photovoltaic power generation panel is advantaged in that people can conveniently adjust an inclination angle of the photovoltaic power generation panel according to the installation position, adjustment is convenient, moreover, dust on a surface of the photovoltaic power generation panel can becleaned, and the situation that power generation efficiency is affected due to the fact that too much dust is accumulated on the surface of the photovoltaic power generation panel is prevented.

The invention relates to an air cooling device, in particular to a modified air cooler which comprises a box body (1), an evaporator (2), a fan (3) and a water diversion disc (9). The box body (1) is connected with the fan (3), and the evaporator (2) is arranged in the box body (1). The box body (1) is provided with a water inlet pipe (5) and a water outlet pipe (6), and a water receiving disc (7) is arranged on the lower portion of the box body (1). A water drain opening (8) is arranged on the water receiving disc (7), and the water diversion disc (9) is arranged on the upper portion of the evaporator (2) in the box body (1). An outlet end (5-1) of the water inlet pipe (5) is accessed to the upper portion of the water diversion disc (9), and a plurality of water diversion holes (9-1) are formed in the water diversion disc (9). The modified air cooler is simple in structure, good in defrosting effect, and convenient to defrost. The water diversion disc is adopted to spray water and defrost without stopping a machine, and production efficiency is high. The water diversion disc is long in service life, and quite convenient and quick to maintain and replace after being damaged.

The invention discloses a hollow shaft structure of a multi-layer furnace as well as a dismounting tool and a dismounting method for a rabble arm and rabble teeth. The hollow shaft structure comprises a hollow shaft, the rabble arm and the rabble teeth, and further comprises a variable-frequency speed regulating motor, a speed reducer, a small bevel gear and a large bevel gear; wherein the rabble arm is connected with the hollow shaft through rabble arm pins; the rabble teeth are mounted on a slide path on the bottom of the rabble arm, and are located by rabble teeth pins on the end part of the rabble arm; the bottom shaft of the hollow shaft is fixedly connected with the large bevel gear, and the large bevel gear is mutually engaged with the small bevel gear; and the small bevel gear is connected with a drive shaft of the variable-frequency speed regulating motor through the speed reducer. Compared with the prior art, the hollow shaft structure has the beneficial effects that: firstly, the rabble arm and the rabble teeth are more convenient and quicker to maintain and replace through key equipment of the multi-layer furnace, so that production efficiency is improved; and secondly, the drive device is compact in structure, so that space is saved, and a rotation speed regulating range is great; and thirdly, the hollow shaft structure is suitable for incineration of various sludge garbage.

The invention relates to a built-in pump LNG (liquefied natural gas) storage tank, belongs to the field of LNG storage devices, and discloses the built-in pump LNG storage tank. The built-in pump LNG storage tank comprises an LNG storage tank body and a pump well, wherein the pump well is connected on the LNG storage tank body, and stretches into the LNG storage tank body; an LNG immersed pump is arranged in the pump well; one end of a liquid outlet hose is connected on the LNG immersed pump, and the other end of the liquid outlet hose is communicated to the outer part of the pump well; a hoisting mechanism used for hoisting and lifting the LNG immersed pump and a pump well blind flange used for sealing the pump well are arranged at the opening part of the pump well; a pump well bottom valve is arranged at the bottom of the pump well; the pump well bottom valve comprises a valve seat, a valve core and a spring seat; the spring seat is fixedly connected with the valve seat through a valve core guide pillar; the valve core is arranged on the valve core guide pillar in a sleeving manner, and is propped against the spring seat through a spring; the valve seat and the valve core are sealed through a valve seat sealing element; and the valve core of the pump well bottom valve is pushed open under the gravity action of the LNG immersed pump, or is closed under the elastic action of the spring.

The invention discloses an intelligent bathroom harness and a processing technology thereof. The intelligent bathroom harness comprises a first wire, a fuse, a second wire and a transparent sleeve, wherein insulation layers at end parts of the first wire and the second wire are stripped to expose core lines, two ends of the fuse wire are respectively connected with the core lines of the first wireand the second wire, the transparent sleeve sleeves the fuse and insulation layers of the first wire and the second wire, and two ends of the transparent sleeve are respectively connected with the insulation layers of the first wire and the second wire in a hot melting way. By the intelligent bathroom harness, the situation that the fuse is heated and damaged due to excessively high temperature can be prevented, and the product quality is improved; and by hot melting of the transparent sleeve and the insulation layer, the sealing performance of the product can be improved, and whether the fuse is favorable can be directly observed by a transparent pipeline.

The invention discloses a concrete monorail rail beam movable support, and particularly relates to a fast mounted and dismounted tooth-embedded resistance-free sliding ball support. The fast mounted and dismounted tooth-embedded resistance-free sliding ball support comprises an upper support (1), a spherical crown liner plate (2), a spherical tetrafluorohydrazine sliding ring (3), a movable sliding block (4), a tetrafluorohydrazine sliding plate (5), a pressing plate (6) and a lower support (7); the upper support (1) is provided with four sawtooth-shaped inner teeth to constitute an anti-pull,anti-shear and anti-twisting device with the movable sliding block (4) with four sawtooth-shaped outer teeth; the spherical crown liner plate (2) of the upper support (1) and the spherical tetrafluorohydrazine sliding ring (3) embedded in the movable sliding block (4) constitute an inner-stress-free device; and the pressing plate 6 and the lower support 7 constitute a sliding groove of the movable sliding block 4. According to the support, the problems that the rail beam movable support bears composite stress such as pulling, shearing, pressing and twisting are effectively solved, and the stress acting on an anchor box and a bridge pier is eliminated; the movable support is compact in structure, is quickly mounted and dismounted, and directionally moves without resistance and deviations;and the support is also suitable for being applied to other bridges.

The invention relates to quality grading water supply reforming method and system with a roof water tank and a building water supply pipe network. The reforming method comprises five steps of prophase preparation stage, metaphase water tank reforming stage, metaphase building water supply pipe network reforming stage, metaphase individual indoor water supply pipe network reforming stage and anaphase running management stage. The reforming system comprises a water chamber, a gas chamber, a purifying chamber and a building quality grading water supply pipe network system, wherein the water chamber comprises direct drinking, living and washing water source rooms; a building quality grading water supply main pipe network for direct drinking, living and washing is correspondingly connected with a quality grading water terminal and a water tank quality grading water discharging total opening respectively according to same function; the gas chamber comprises a unit modularized assembly type breathing bladder bag group; and the purifying chamber is provided with an assembly type unit modularized quality grading purification water supply unit. The invention prevents the secondary pollution of water and volatile waste of residual chlorine and has the effects of no cleaning, no water stop, full utilization, no waste, energy saving, emission reduction and quality grading water supply as required.

The invention discloses an IC card swiping machine which comprises a supporting rod and an installation base. A threaded through hole is formed in the middle of the installation base. The supporting rod penetrates through the threaded through hole. A plurality of spiral grooves are formed in the middle of the supporting rod. An activity cavity is formed in the other side of the threaded through hole. A bottom plate is installed in the activity cavity. A plurality of clamping and holding rods with the ends matched with the spiral grooves are arranged on the bottom plate at intervals. One end of the installation base is provided with a threaded hole communicated with the activity cavity. A screw is connected with the bottom plate through the threaded hole. The card swiping machine comprises a plurality of reader-writers and a display screen connected with the reader-writers, wherein the reader-writers are fixed to the top end of the supporting rod in an annular array mode. The portion, located at the top end of the supporting rod, of the card swiping machine is of an annular structure composed of the multiple reader-writers, and therefore cards can be swiped within the range of 360 degrees, and the card swiping operation of passengers is facilitated; the display screen electrically connected with the reader-writers can display information in the bus cards of the passengers and remind the passengers to recharge the cards to pay the fees.

The present invention discloses a cabinet cabling rack convenient for limited rotation of an electric wire and cabinet. The cabinet cabling rack comprises an equipment cabinet body and a pay-off plate arranged on the equipment cabinet body, an adjusting plate is arranged at the upper end of the pay-off plate, a limiting rod and a rotationally-arranged adjusting screw rod are arranged on the two sides and the middle position of the upper end of the pay-off plate respectively, and the limiting rod penetrates through the adjusting plate; and the adjusting screw penetrates through the adjusting plate in a threaded mode, a wire groove is formed in the upper end face of the pay-off plate, a stepped hole is correspondingly formed in the adjusting plate, a jacking screw is rotationally arranged in the stepped hole, an inner threaded sleeve is arranged at the bottom end of the jacking screw in a threaded and sleeved mode, a wire clamping block is arranged at the bottom end of the inner threaded sleeve, and the bottom end of the wire clamping block is inserted into the wire groove. Through the arrangement of a vertical rod, a return spring, a connecting block, a fixing block, a reset spring sleeve rod and a connecting plate, rapid installation of a wire group is facilitated, and under the cooperation of an adjusting plate, a limiting rod, an adjusting screw rod, a jacking screw rod, an internal thread sleeve and a wire clamping block, rapid maintenance and replacement of a single wire are facilitated.

The invention publishes an application method for a magnetic card. The method comprises the following steps that a support rod is welded or fixed at a cashier which is located at the front door of a bus, a mounting base is rotatedly arranged on the support rod through a tapped through hole; when a first spiral groove on the support rod form up to down is cover through the mounting base, the motion of the mounting base is stopped, a screw is adjusted by hand, which makes a baseboard move freely in a active cavity until the top of the support rod is meshed with the spiral groove, so that the mounting base is achieved to be tightly fixed on the support rod; the both ends and the middle of the support rod are respectively provided with the screw thread and the spiral groove, dual connection and fixation between the support rod and the mounting base are achieved according to the coordination of the mounting base, which is convenient for the operator to perform fixed installation quickly and maintenance and change. Especially during rush hours, a credit card machine located at the top end of the support rod is formed a cyclic structure for multiple readers, which means the card can be swiped within 360 DEG.

The invention discloses a steel structure bridge deck protective system which comprises a steel bridge deck slab. A protective plate is laid above the steel bridge deck slab and detachably connected with the steel bridge deck slab. Compared with the prior art, the steel structure bridge deck protective system is simple in structure, the local load of reciprocal action of wheel load on the steel bridge deck slab can be dispersed, the service life of a steel structure bridge is prolonged, the damaged protective plate can be rapidly detached and circulated, the construction period is shortened, manpower and material resources are greatly saved, and the construction cost is reduced.

The invention discloses a DNA methylation site analysis device and method based on a triple helix nucleic acid structure, and the device comprises an analyzer body, a workbench, a damping assembly, a station plate, an antiskid assembly, a sample box, a connection assembly, a protection cover, a triple helix nucleic acid structure photoelectrochemical biosensor, a fluorescence excitation lamp and a touch display screen. The workbench is arranged on one side of the top of the analyzer body, the center of the top of the workbench is fixedly connected with the bottom of a damping assembly, and the damping assembly is composed of a damping plate, a single-end stud, a rubber cushion plate, a limiting nut and a buffer spring. The anti-skid structure is additionally arranged, so that the problem that a sample topples and leaks in the moving process of the device is solved, resources are saved, resampling is not needed, the analysis cost of methylation sites is reduced, and the connecting structure is additionally arranged, so that a worker can conveniently disassemble and assemble the protective part, maintenance and replacement are rapid, the labor intensity of the worker is reduced, and the maintenance cost of the device is saved.

The invention provides a suspension type sliding door structure. The suspension type sliding door structure comprises a rail fixed at the upper edge of a doorway, a sliding component sleeved in the rail and a door plate arranged under the rail and connected with the sliding component, wherein the sliding component comprises a sliding seat, a buffering device, two action pins, a locking bolt, two clamping blocks, two elastic parts, a locking plate and an upper cover. The invention also provides a sliding component. According to the suspension type sliding door structure and the sliding component, the sliding seat is pivotally connected with the buffering device; through cooperation of the action pins, prying is provided, so that the actions of maintaining and repairing the suspension type sliding door can be more rapidly, simply and conveniently completed; the maintaining and repairing processes are simplified; and the labor cost and the material cost which need to be consumed during operating can be greatly reduced.

The invention relates to an isolated movement for mine flameproof feed switch, and belongs to the technical field of mine flameproof type feed switch isolation type core. The technical problems to besolved are as follows: providing an isolation type machine core for a mine flameproof feed switch; The technical scheme adopted for solving the technical problem is as follows: comprising an encapsulated type machine core, wherein the encapsulated type machine core is encapsulated by a machine core housing, the front end of the machine core housing is provided with an encapsulated type pole, and amachine core cover is arranged at the rear part of the machine core housing; The encapsulated machine core is arranged on the guide rail, and the guide rail is in contact with the bottom of the machine core shell through the wheel protecting groove; The front end of the guide rail is also provided with a socket board, the socket board is provided with a plug seat, and the socket hole on the plugseat is movably connected with the encapsulated pole; The two sides of the encapsulated type movement are also provided with plucking hooks, and the middle part of the guide rail is also provided witha plucking shaft which is inserted into the plucking hook. The utility model is used for a mine flameproof feed switch.

The invention discloses a usage method of a card-swiping identification structure. The usage method comprises the following steps that a supporting rod is welded or is fixed at the fee collection position of a front door of a bus in other modes, and an installing base is rotatably installed on the supporting rod through a threaded through hole; according to an appropriate height, movement of the installing base is stopped when the installing base covers a first spiral groove formed in the supporting rod from top to bottom, a screw is manually adjusted to make a base plate freely move in a movable cavity till the end of a clamping rod is meshed with the spiral groove, and further fastening of the installing base on the supporting rod is achieved; the upper end, the lower end and the middle of the supporting rod are provided with threads and spiral grooves respectively, and dual connection and fixing between the supporting rod and the installing base is achieved through matching with the installing base.

The invention provides a flue gas emission system of a power plant. The flue gas emission system of the power plant comprises a desulphurization tower, wherein a tubular heat exchanger is arranged atthe top of the desulphurization tower; the tubular heat exchanger is directly communicated with desulphurized wet clean flue gas introduced into the desulphurization tower by virtue of an air inlet bellow; ambient air which is lower than the wet clean flue gas is introduced into a heat exchange pipe of the tubular heat exchanger as a cold medium to cool the wet clean flue gas after being desulphurized by the desulphurization tower; the heat exchanged clean flue gas enters an exhaust passage with a liquid collecting tank; and the liquid collecting tank is used for recovering condensed water andis arranged at a low point of the exhaust passage. The flue gas emission system can not only recover the water resources and waste heat, but also can reduce the occupied area of land, reduce the construction cost, shorten the construction period, reduce the energy consumption and water consumption, and also effectively eliminate'white feather'.

The invention discloses an intelligent bathroom harness and a processing technology thereof. The intelligent bathroom harness comprises a first wire, a fuse, a second wire and a transparent sleeve, wherein insulation layers at end parts of the first wire and the second wire are stripped to expose core lines, two ends of the fuse wire are respectively connected with the core lines of the first wireand the second wire, the transparent sleeve sleeves the fuse and insulation layers of the first wire and the second wire, and two ends of the transparent sleeve are respectively connected with the insulation layers of the first wire and the second wire in a hot melting way. By the intelligent bathroom harness, the situation that the fuse is heated and damaged due to excessively high temperature can be prevented, and the product quality is improved; and by hot melting of the transparent sleeve and the insulation layer, the sealing performance of the product can be improved, and whether the fuse is favorable can be directly observed by a transparent pipeline.