78results about How to "Realize the collection" patented technology

The utility model relates to the silver powder cleaning field, specifically disclose a kind of silver powder recovery impurity cleaning equipment, including the cleaning component on the collecting box, cleaning component includes scraper, one end of the collecting box is connected with connecting plate, electric cylinder is connected on the connecting plate, the utility model is through heat treatment-silver powder collection-compaction forming processing sequence, the efficient recovery of silver powder is realized, and utilize heating plate and top heating lamp collaborative heating, quickly and evenly promote silver powder temperature, again through the scraper in cleaning component by closely adhering and silica gel plate increase friction design, remove silver powder at the bottom of collecting box, and concentrate silver powder to reserved groove, finally, cylinder drive pressboard compaction powder in reserved groove multiple times, make silver powder dense forming, effectively reduce the loss in the recovery process, improve recovery efficiency and quality.

The application relates to an openable landscape bench for collecting rainwater, and belongs to the technical field of garden landscape facilities. The landscape bench comprises a circular ring type seat surface, the inside of the circular ring type seat surface is fixedly connected with a hollow main support column, the top end of the hollow main support column is fixedly connected with a central umbrella rib base, the outer periphery of the central umbrella rib base is fixedly connected with an inverted umbrella type roof, and the outer periphery edge of the inverted umbrella type roof is fixedly connected with a plurality of annular frames. The application has the beneficial effect that in the rainy season, the inverted umbrella type roof is an umbrella surface structure that is inclined to the center as a whole, rainwater can be concentrated and flowed into the central umbrella rib base under the action of gravity, and gradually flowed into a storage assembly along a water collecting pipe in the hollow main support column, so that the collection and storage functions of the landscape bench are realized. The structure has the functions of sun-shading, rain-shielding and efficient water collection, improves the practicability and maintenance convenience of the device, and greatly improves the land use efficiency and landscape coordination of public space.

This utility model discloses a vibrating screen for spreading materials in an electrostatic separator, including a mounting frame, a vibrating frame, and an electrostatic separator disposed above the vibrating frame. A screen plate is disposed inside the vibrating frame to divide the inner side of the vibrating frame into a vibrating chamber and a vibrating separation chamber. The vibrating frame and screen plate are inclined downwards from right to left. A vibrating motor is disposed on the lower side of the vibrating frame. A material conveying device is mounted on the inlet of the vibrating frame. A first discharge cylinder and a second discharge cylinder are respectively connected to the left side of the vibrating separation chamber and the vibrating chamber. Two collection frames are disposed on the left side of the mounting frame. The upper parts of the two collection frames are respectively connected to a first receiving pipe and a second receiving pipe, which are located directly below the first and second discharge cylinders. A storage frame is inserted into each of the two collection frames. A pushing component is disposed inside the vibrating frame for pushing out residual materials from the vibrating chamber and the vibrating separation chamber. This utility model has the advantage of facilitating material collection.

The utility model discloses a convenient withering processing device of tea leaf, including frame body, frame body upper end is frame structure, and the both sides welding of frame body upper end are equipped with front side plate and rear side plate, the upper surface of front side plate and rear side plate is equipped with the apron through hinge, and the lower surface of frame body frame is equipped with the screen, and the right side end is fixed through the fastening screw, and the lower end of screen is equipped with vibrator, and is connected with control device through the wire, and the both inner planes of frame front and back are equipped with sliding block through screw, and transmission is equipped with on the upper end of frame, and the upper surface welding of frame body upper end frame left side end is equipped with fixed plate, and is equipped with fan through screw, the utility model provides a convenient withering processing device of tea leaf, and the upper end inclined plane is convenient to concentrate the ventilation strength downwards, and the tea leaf withering speed is increased, and the transmission drives the rake peg and can turn over the tea leaf, and realizes even withering, and the screen rotates freely downwards, and the vibrator vibrates, and the tea leaf is convenient to process and falls into the outside collecting frame, and the device structure is simple, and convenient to use.

The application relates to the field of refrigeration equipment, and provides an ice-coating device and refrigeration equipment. The ice-coating device comprises a storage box, a drain hole is formed in the bottom of the storage box; a spraying assembly is installed on the storage box; and a water collecting tray is pullably installed on the storage box and located below the drain hole. The ice-coating device is characterized in that the drain hole is arranged in the bottom of the storage box, and the water collecting tray is pullably arranged below the drain hole, so that residual water sprayed on food materials during ice-coating can be collected, and the residual water after spraying is prevented from flowing to other positions. Meanwhile, the pullable design facilitates the disassembly and assembly of the water collecting tray by a user, and the disassembly and assembly efficiency of the water collecting tray by the user is improved.

This application provides a rainwater harvesting and utilization system for vertical greening buildings, relating to the field of green building. It includes a downpipe and a water storage tank embedded in the base of the building. One end of the downpipe connects to the top of the building, and the other end of the downpipe has a first branch pipe and a second branch pipe. One end of the first branch pipe connects to the downpipe, and the other end has a detachable sealing cap. One end of the second branch pipe connects to the downpipe, and the other end supplies rainwater to the water storage tank. The second branch pipe is equipped with a filter mechanism for filtering rainwater. The water storage tank contains a water pump and a sprinkler pipe. The water pump pumps the rainwater from the storage tank through the sprinkler pipe for watering the plants. This application has the effect of collecting and reusing rainwater without causing silt accumulation and clogging.

This utility model relates to the field of aluminum curtain wall panel production technology, and discloses a continuous forming equipment with a built-in grinding structure. It includes a processing cabinet, a processing table mounted on the top of the processing cabinet, a second clamping seat mounted on the right side of the top of the processing cabinet, mounting seats on both sides of the second clamping seat, and the bottom ends of the mounting seats fixed to the top of the processing table. A first telescopic cylinder is mounted on the bottom end of a first electric slide rail, and a laser cutting head is mounted on the bottom end of the first telescopic cylinder. This utility model, by providing mounting seats, a second telescopic cylinder, a second electric slide rail, and grinding wheels on both sides of the second clamping seat, allows the forming equipment to cut the aluminum curtain wall panel to the required size. With the cooperation of the above components, two sets of grinding wheels can grind the burrs generated during cutting at the edges of the aluminum curtain wall panel, thus realizing a built-in grinding structure and enhancing practicality.

The utility model discloses a sewage sandstone separation device for concrete production relates to concrete production technical field, the utility model discloses a separation barrel still includes: separation department, separation department installs on separation barrel, vibration department, vibration department installs at the top of separation barrel, cleaning department, cleaning department sets up on separation barrel, vibration department includes drive assembly, drive assembly installs at the top of separation barrel and vibration assembly, vibration assembly installs on drive assembly, vibration assembly includes the cylinder support of setting at the top of separation barrel, and the circular cylinder block is arranged in cylinder support. The utility model discloses setting vibration department, has solved the existing sewage sandstone separation device in the use process, and the cylinder screen mesh is easy to appear the blockage because of sandstone accumulation, causes sewage filtration to be blocked, sandstone separation efficiency declines greatly, the continuity and stability of the problem of influence separation operation.

The application discloses a kind of for sewage treatment ultra-efficient shallow air floaters and processing technology, its ultra-efficient shallow air floater includes pool body, cloth liquid unit, mounting bracket and drive unit, pool body inserts with sewage pipe and inlet pipe, sewage pipe is connected with sewage pipe, inlet pipe is connected with Venturi jet and is connected with its water inlet, the air pipe and the dissolved air water pipe are connected with the air inlet and the water outlet of Venturi jet respectively;Cloth liquid unit includes mixing pipe and cloth liquid pipe, mixing pipe is connected with sewage pipe, dissolved air water pipe, cloth liquid pipe is connected on mixing pipe, mounting bracket is arranged on sewage pipe, and mounting bracket is provided with scraper;Drive unit drives mounting bracket to rotate;Pool body is equipped with scum cylinder, scum cylinder is equipped with scum box, the height of front side box wall of scum box is greater than rear side box wall, mounting bracket is equipped with bending assembly for bending scraper, and the scraper after bending restores original shape after passing through low side box wall of scum box.The ultra-efficient shallow air floater provided by the application can improve the efficiency of the scraper to remove scum.

The application provides a method and device for hydrogen production by electromagnetic induction high-temperature carbonization, and belongs to the technical field of hydrogen production by carbonization. The method comprises the following steps: S1, drying and preheating solid carbon-containing raw materials, and isolating air throughout the process; S2, starting a ceramic screw propeller in the carbonization furnace to continuously push the raw materials and sequentially pass through a preheating section, a medium-temperature dry distillation section and a high-temperature carbonization section for pyrolysis carbonization reaction, and simultaneously generate solid carbonized substances and hydrogen-containing mixed gas; S3, the solid carbonized substances are discharged after being transported to a cooling section for cooling; the hydrogen-containing mixed gas is discharged from a gas outlet and subjected to dust removal and purification treatment; and S4, the purified hydrogen-containing mixed gas is purified to obtain high-purity hydrogen. The hydrogen production process of the application does not use open flame heating, reduces dust and waste gas emission, is more environmentally friendly, can prepare high-purity hydrogen, and further improves the product value.

This utility model relates to the field of metal casting mold technology and discloses a mold that facilitates demolding. It includes a receiving groove with a vertical plate fixed to its side wall. After casting, the telescopic rod extends, causing the upper mold to move upwards and detach from the lower mold. Then, the upper top block can be pulled outwards from the bottom of the lower mold. At this point, power is stopped to the electromagnet, releasing the magnetic lock on the lower mold. The lower mold then rotates downwards under the support of the rotating shaft and support frame. The protective strip then collides with the collision strip. The opening of the lower mold faces downwards, allowing the formed material inside to be easily discharged downwards for demolding. Simultaneously, the material is subjected to centrifugal force during the rotation of the lower mold, further facilitating demolding. This solves the problem of common casting molds where the formed material is located inside the lower mold cavity, making demolding difficult and allowing for long-term use of the mold.

The application belongs to the technical field of lunar resource utilization, and specifically discloses a test platform for lunar soil water ice microwave heating, which comprises a tank body, a temperature adjusting unit, a pressure adjusting unit, a microwave heating unit, an infrared thermal imager, a lunar soil placing table, an inert gas introduction unit and a water vapor collecting unit. The temperature adjusting unit and the pressure adjusting unit are respectively used for adjusting the temperature and the pressure inside the tank body. The microwave heating unit and the infrared thermal imager are respectively used for microwave heating and infrared thermal image monitoring of the inside of the tank body. The inert gas introduction unit comprises a uniform gas outlet table arranged in the inside of the tank body and a gas supply unit connected with the uniform gas outlet table. The lunar soil placing table is arranged on the uniform gas outlet table. The water vapor collecting unit is used for collecting water vapor generated by the lunar soil sample. The test platform has a reasonable structure and can complete the test of lunar soil water ice microwave heating through ground experiments.

The utility model relates to water treatment equipment technical field especially relates to a dust collector, include: the air inlet is set up in one side of no. The water whirl chamber sets up in the inside of no. The fan is installed in the inside of no. The pool body sets up in one side of no. The pool body with the air inlet is set up between no. The inside of pool body is provided with the residue assembly for the impurity of liquid in the pool body is filtered, the residue assembly includes: no. The recess is opened in the inside of no. The utility model discloses the floating height of no. Through the water pump extraction pool body's inside liquid, then through no. Impurity in the liquid is filtered, realizes the sustained filtration and impurity collection of waste liquid in the pool body, removes and changes frame body and no. The device can be restored to use, and the downtime of device is greatly reduced.

This invention discloses a conveyor belt bottom cleaning robot for collecting materials spilled at the bottom of the conveyor belt. It comprises: a sub-machine that sweeps and collects materials at the bottom of the conveyor belt; and a main machine that collects the materials collected by the sub-machine and transports the collected materials to the conveyor belt. This invention can clean and collect materials at the bottom of the conveyor belt and on the cement platform of the conveyor belt support, and transport the cleaned materials onto the conveyor belt.

This application relates to the field of condensate collection and reuse, and in particular to a condensate collection and reuse device, comprising a condensate collection system for receiving steam from the steam outlet of a dyeing and drying equipment and condensing the received steam to form condensate; a multi-stage recovery tank, including a primary recovery tank, a secondary recovery tank, and a tertiary recovery tank connected in sequence, with the output end of the condensate collection system connected to the primary recovery tank; a storage tank for storing the condensate; and a pumping mechanism for pumping the condensate from the tertiary recovery tank to the storage tank. This application has the effect of reducing water waste and environmental pollution.

The application discloses an information geometry multi-frame nonlinear detection method for unknown extended point number targets in a non-uniform clutter environment, and belongs to the technical field of radar target detection. The method comprises the following steps: constructing joint measurement data on the basis of echoes, mapping the joint measurement data to an extended target manifold space, and obtaining an extended target joint measurement manifold coordinate; then, estimating a multi-frame clutter geometric center by using historical data of several frames before a specified moment, so as to suppress the influence of non-uniform clutter variation on a subsequent target detection process; finally, accumulating a nonlinear value function of the extended target, and outputting an estimated result of an unknown extended point number target track and an extended point number. The application solves the problem that, in a non-uniform clutter environment, the estimated clutter geometric center deviates from the clutter distribution characteristics of a unit to be detected due to the rapid variation of the clutter statistical characteristics with the spatial position, thereby leading to the decline of the detection performance, and solves the problem of the loss of the manifold measurement of a weak extended target, and improves the detection performance of the weak extended target in the non-uniform clutter environment.

The utility model discloses a kind of polystyrene preparation stirring reaction devices, including bottom plate, collecting barrel is fixedly arranged on the bottom plate, the lower end of the bottom plate is fixedly arranged with support leg, the support leg is provided with multiple, collecting barrel lower end is provided with discharge pipe, collecting barrel is communicated between discharge pipe, fixed frame is fixedly arranged on collecting barrel, to form the main body structure of entire stirring device by collecting barrel and bottom plate;Fixed frame is provided with placement structure, the placement structure includes first fixed column and placing barrel, the first fixed column is arranged on fixed frame, the placing barrel is arranged on first fixed column, the first fixed column is provided with stirring structure, the stirring structure includes cover plate and stirring frame, the stirring frame is arranged on cover plate, the storage of polystyrene produced is facilitated by placement structure, raw material is fully stirred by stirring structure.

The utility model relates to the field of steel plate polishing machine especially relates to multifunctional adjustment's steel plate polishing machine, including the mounting seat, still including the fixed mounting in the upper end of mounting seat's connecting vertical board, the upper end of mounting seat is located in the front side of connecting vertical board and is fixedly installed with conveyer belt frame through the support plate, the inside of conveyer belt frame is provided with conveyer belt body, and conveyer belt body is used for conveying steel plate, and the front side of connecting vertical board upper end is provided with the mounting support, and the inside of mounting support is provided with polishing assembly, and the back end of mounting support and connecting vertical board between are provided with adjusting assembly, and the right side of the surface of connecting vertical board is provided with dust collection head, the utility model discloses polishing motor drives polishing wheel to rotate, and steel plate is moved by conveyer belt body drive, realizes the feeding, makes steel plate enter the polishing wheel below, carries out polishing processing, and through the sliding of fixed screw in sliding groove, changes the position of polishing wheel, and conveniently adapts the steel plate of different specifications, improves practicality.

This utility model discloses a vibration damping device, wall panel, and mechanical equipment based on a Mikaelian lens. The vibration damping device based on a Mikaelian lens includes: a conformal self-focusing lens; a vibration damping element disposed on a portion of the conformal self-focusing lens corresponding to at least one wave focus; and / or an energy harvesting element disposed on a portion of the conformal self-focusing lens corresponding to at least one wave focus. Thus, by disposing of the vibration damping element and / or the energy harvesting element on the portion of the conformal self-focusing lens corresponding to at least one wave focus, or on a portion of the conformal self-focusing lens adjacent to at least one wave focus, the vibration damping element can suppress vibrations transmitted to the conformal self-focusing lens, and the energy harvesting element can collect and utilize the vibrational energy transmitted to the conformal self-focusing lens.

The utility model relates to mould structure technical field, concretely, mould structure with self -cleaning function, including fixed mould and the dynamic mould of setting in the front side of fixed mould, the upper portion of the part between fixed mould and dynamic mould is provided with the cylinder, the telescopic axle end part of cylinder is provided with the air box, all are fixedly installed with a plurality of linear equidistance arrangement's gas jet on the front and back two side surfaces of air box, the gas jet is linked with the inside of air box, the side of cylinder is provided with the air pump, the air inlet end of air pump is fixedly installed with the air inlet pipe, the air outlet end of air pump is fixedly installed with the air outlet hose that links with the inside of air box, the below of air box is provided with dust absorption cylinder, the inner wall of dust absorption cylinder is fixedly installed with the fan, the bottom of dust absorption cylinder is fixedly installed with the outside hose, the side between air box and dust absorption cylinder is fixedly installed with vertical board. The utility model has self -cleaning function, can carry out cleaning operation, save time and labour.

The utility model relates to energy storage device technical field especially, relates to a kind of energy storage box and energy storage system.Energy storage device includes box, ventilation mechanism and exhaust mechanism, and box is equipped with heat dissipation hole and air outlet.Ventilation mechanism includes driving element and the heat dissipation window of being movably installed in heat dissipation hole, driving element is transmission connection with heat dissipation window, to drive heat dissipation window to open or close heat dissipation hole.Exhaust mechanism includes fan, dust removal box and filter screen, filter screen is installed in dust removal box, and dust removal box is communicated with air outlet;Fan is configured to suck the air in box into dust removal box, and after filtering, it is discharged from air outlet.Energy storage system includes the energy storage box described above, ventilation mechanism realizes the air cooling of energy storage box, and the fan of exhaust mechanism sucks the air in box into dust removal box and discharges box, while improving the air cooling effect of energy storage box, it also realizes the filtration and collection of dust particles and other impurities through dust removal box, improves the safety and reliability of energy storage box.

This utility model discloses a collagen facial mask liquid coating device, relating to the field of facial mask liquid coating technology. It includes a conveyor body, a feeding device on the top of the conveyor body, a facial mask liquid storage device fixedly installed on the top of the conveyor body, and a recycling bin at the bottom of the conveyor body. The collagen facial mask liquid coating device of this utility model, by setting a guide shaft, allows the non-woven fabric to change sides on the outer surface of the guide shaft, thereby allowing the first and second feeding nozzles to coat both sides of the non-woven fabric, making the coating more uniform and improving the coating effect of the facial mask liquid. A scraper spreads excess facial mask liquid evenly on the outer surface of the non-woven fabric, and the shape of the scraper enables the recycling and collection of the facial mask liquid, reducing the production cost of the facial mask. The first and second feeding nozzles swing left and right on the top of the non-woven fabric, making the distribution of the facial mask liquid more uniform and improving the quality of the facial mask.

This utility model discloses a chemical safety sampling device, including a sampling tube installed on the side of a tank and a protective box covering the sampling tube. A solenoid valve is installed on the sampling tube, and the protective box has a door. One side of the door is hinged to the protective box, and the other side of the door is connected to the protective box via an electromagnetic lock. A start switch is installed on the surface of the protective box. The start switch, electromagnetic lock, and solenoid valve are all connected to a PLC controller. This utility model, by setting a protective box outside the sampling tube and placing the sampling container inside the protective box for sampling, can effectively avoid safety accidents caused by splashing chemical cleaning solutions.

The utility model relates to photovoltaic carport technical field discloses an adjustable photovoltaic carport, the adjustable photovoltaic carport, including the lift support and install photovoltaic board on the lift support, the photovoltaic board back side fixedly connected with the water collecting pipe, the water collecting pipe upper surface is opened with the water guide groove, the water collecting pipe one end fixedly connected with the flow guide pipe, the flow guide pipe bottom fixedly connected with the water storage box, the water storage box places ground, the utility model discloses the mutual cooperation of water storage box and flow guide pipe has realized the collection to rainwater, improved the utilization efficiency of water resources, avoided the waste of rainwater.

This invention discloses a laser cutting device for aluminum substrates used in backlight sources, belonging to the technical field of laser cutting devices. The device includes an operating table, a movable frame on top of the operating table, a laser cutting device installed inside the movable frame, a first support plate movably connected to the upper surface of the operating table below the laser cutting device, a first slot on the inner side of the first support plate, a movable plate movably connected inside the first slot, a second slot on one side of the movable plate, a pressure plate movably connected to the inner wall of the second slot, a screw threaded inside the movable plate, the bottom end of the screw rotatably connected to the pressure plate, and a gear on the outer surface of the screw above the movable plate. This laser cutting device for aluminum substrates used in backlight sources avoids corrosion of the supporting components during laser cutting. The operator moves the movable plate with a handle, and the connection of the gear and gear plate allows the pressure plate to limit the backlight aluminum substrate, achieving debris collection.

The utility model belongs to photovoltaic panel installation component technical field, specifically point to a kind of self waterproof photovoltaic carport, including base, support frame is equipped on the base, support frame is equipped on the support frame, the upper end of support frame body is equipped with fixed longitudinal pipe, the side of support frame body is equipped with edge pipe, one end of fixed longitudinal pipe is equipped on the outer side wall, the other end of fixed horizontal pipe is connected on the side wall of edge pipe, the upper end of support frame body one side is equipped with limit piece, solar photovoltaic panel can be detachably installed on fixed longitudinal pipe;The setting of fixed longitudinal pipe and fixed horizontal pipe, ensure that rainwater can quickly gather and smoothly discharge, avoid the problem of fixed longitudinal pipe and fixed horizontal pipe waterlogging, to enhance the waterproof performance of carport whole, prolong service life.

The application provides a visible light positioning system and a preparation method of a silicon-based flexible photoelectric detector, and relates to the technical field of visible light positioning. The visible light positioning system comprises a fixed module with a curved surface structure, at least two silicon-based flexible photoelectric detectors, a data processing module and a positioning analysis module. The silicon-based flexible photoelectric detector comprises, from top to bottom, a front grid electrode layer, a hole transport layer, a passivation layer, an N-type monocrystalline silicon layer and a back metal electrode layer arranged in a stacked manner. The N-type monocrystalline silicon layer has a pyramid structure on both sides, and the hole transport layer, the passivation layer and the back metal electrode layer are conformally arranged with the N-type monocrystalline silicon layer. The silicon-based flexible photoelectric detector has the characteristics of flexibility, self-supporting and self-power supply, and has excellent photoelectric detection capability. The visible light positioning system has a simple structure, reduces the volume and cost, and realizes accurate positioning of the measured light source.

The utility model relates to dry rice flour cutting technical field discloses dry rice flour anti -crushing flexible support cutting frame, including work table, the top left and right sides of work table all are fixedly connected with connecting seat, the top of two connecting seats all is provided with clamping mechanism, the inside of two clamping mechanisms all is provided with replacement mechanism, two replacement mechanisms are used for conveniently cleaning and replacement flexible support, the top rear side of work table is provided with cutting mechanism, the top rear side left and right ends of work table all are provided with dump mechanism, dump mechanism is used to push to clamping mechanism and empties, the replacement mechanism includes a plurality of rubber pads. In the utility model, through rubber pad and connecting column fixed, connecting column is inserted into the clamping slot after round hole, screw fastening, when disassembling, unscrew the screw and pull out the clamping plate, remove the connecting column and rubber pad, realize the flexible buffer when dry rice flour cutting, can quickly disassemble and clean or replace the rubber pad, improve work efficiency.

This application provides a method and apparatus for collecting CSQF scheduling cycles in deterministic networks. In this embodiment, for the first node on a transmission path in a deterministic network, the CSQF scheduling cycle information of the first node is determined based on the receive timestamp of the test message received by the first node and the send timestamp of the scheduled test message. For non-first nodes, based on the CSQF scheduling cycle information of other transmission nodes preceding the non-first node in the transmission path, the test messages corresponding to the non-first node are controlled to enter the receive queue (RQ) of other transmission nodes preceding the non-first node in the transmission path. The CSQF scheduling cycle information of the transmission node is determined based on the receive timestamp of the test message received by the non-first node and the send timestamp of the scheduled test message. This ultimately achieves the collection of CSQF scheduling cycle information for all transmission nodes along the entire transmission path.

This invention discloses a high-precision CNC laser cutting machine for metal processing, comprising a base, a housing fixedly connected to the upper end of the base, and multiple casters fixed to the lower end of the base; a limiting mechanism, comprising a vertical plate fixedly connected to the upper end of the base, a mounting bracket fixedly connected to the left side of the vertical plate, a drive motor mounted on the mounting bracket, the output shaft of the drive motor passing through the vertical plate and fixedly connected to a three-jaw chuck; and a cutting mechanism, comprising an electric slide rail fixedly connected to the top of the housing, a slide rail seat slidably connected to the sliding part of the electric slide rail, and a laser cutting head mounted at the lower end of the slide rail seat. This laser cutting machine adopts a sealed design, which can prevent smoke and dust from spreading into the surrounding environment during use, improving its environmental performance. In addition, it can continuously cool the cutting head, extending its service life.