57results about How to "Easy to adjust the depth" patented technology

The invention discloses a vertical drilling device for building roofs for building construction, comprising a base plate, a plurality of casters are installed on the lower edge side of the base plate, and a plurality of threaded holes are opened on the base plate, threaded columns are screwed into the threaded holes, threaded The bottom end of the column is fixedly connected in the installation hole of the rotating shaft sleeve; the bottom plate is positioned horizontally by adjusting the rotating handle, which can ensure the verticality of the drilling hole, and the lifting column is moved upward by toggling the toggle block, which is easy to operate , Fast, easy to quickly adjust the height of the drill bit, press the two limit positions inward with your hand at the same time, so that the movable column moves to a certain place, so it is convenient to adjust the depth of the drill bit, the dust from the drill hole falls into the ring sleeve and It is discharged through the discharge pipe. Since the annular plate can shrink into the annular sleeve, the upper part of the annular plate is in contact with the roof of the building during the drilling process, so that the dust will not fall to the outside of the annular plate and improve the construction environment.

The invention relates to a pipe double end chamfering machine which comprises a lathe body, a charging and discharging mechanism, a chamfering mechanism, a clamping mechanism, a charging bin and a discharging bin, wherein the charging and discharging mechanism, the chamfering mechanism and the clamping mechanism are fixedly arranged on the lathe body; the charging and discharging mechanism comprises a vertical cylinder, a guide rail, a horizontal cylinder and a charging and discharging pneumatic finger; the charging and discharging pneumatic finger is connected with a guide post by virtue of a connecting bracket; the guide post is slidably connected with a vertical guide plate; the connecting bracket is connected with the vertical cylinder; the horizontal cylinder is connected with a horizontal guide plate; the horizontal guide plate is slidably connected with the guide rail; the horizontal guide plate is fixedly connected with the vertical guide plate; The clamping mechanism is arranged on the lathe body between the charging bin and the discharging bin. The pipe double end chamfering machine has the beneficial effects of realizing full-automatic operations such as charging, chucking, processing and discharging, processing four chamfer angles inside and outside two end surfaces by virtue of once chucking, conveniently regulating the processing frequency and the tool feeding depth by virtue of PLC (Programmable Logical Controller) control over equipment and realizing full-automatic production.

The invention discloses an agricultural weeding machine, belongs to the technical field of agricultural machinery, and solves the problems that when existing weeding machinery works, weeding depth cannot be adjusted, and weeds cannot be favorably collected. According to the technical scheme, the agricultural weeding machine comprises a weeding rack, a weed collecting tank, a weed collecting roller, a weed shifting roller and a weeding roller, wherein the weed collecting tank is mounted on the weeding frame, the weed shifting roller is mounted inside the weed collecting tank, a plurality of weed shifting rods are arranged on the surface of the weed shifting roller, the weed shifting roller is mounted on a second rotary shaft, the second rotary shaft is in transmission connection with a first rotary shaft through a gear set, the weed collecting roller is mounted on the first rotary shaft, and a plurality of soil-turning teeth are arranged on the surface of the weed collecting roller. Theagricultural weeding machine has the advantages that by the rotation of the weeding roller, the weed collecting roller and the weed shifting roller, weeding, weed-soil separation and weed collectingcan be performed; in addition, an electric push rod telescopes to drive a mechanical arm to rotate to drive the weeding roller to slide along a guide slide groove, the soil cutting depth of weeding cutters on the weeding roller can be conveniently adjusted so as to adjust weeding depth, and convenient and efficient weeding is achieved.

The invention relates to a water body layering sampling testing device which comprises a sampling unit, a water sample detection circuit, a signal processing single circuit, an underwater detection unit and a power supply control circuit, wherein the sampling unit is used for sampling water bodies of different depths so as to obtain water samples; the water sample detection circuit is used for acquiring the water samples so as to obtain water sample information; the signal processing single circuit is used for performing digit-to-analog conversion on the water sample information, used for amplifying the water sample information and used for transmitting the water sample information to a host computer; the underwater detection unit is used for acquiring water sample property information by using a water sample property detection probe so as to form a feedback loop; the power supply control circuit comprises a communication unit and a voltage allocation unit; the communication unit is used for receiving a control signal of the host computer and used for transmitting the working signals into the voltage allocation unit; the voltage allocation unit can enter into a working state through the working signal to feed working voltage into the water sample detection circuit, the signal processing single circuit, the underwater detection unit and the sampling unit. The water body layering sampling testing device has the beneficial effects that the sampling unit is simple in structure and easy to assemble and adjust, can be disassembled and separated from other modules and can be used independently, and the depth can be conveniently adjusted according to scales on a rope, so that the water bodies of different depths can be sampled.

The invention relates to a bathtub with a disposable protective film and used for a burn patient. The bathtub comprises a bathtub body and a patient moving trolley, wherein an immersion bath is arranged in the bathtub body, a temperature sensor, an ultrasonic generator, a heater, a water level sensor and a self-control water inlet are arranged in the immersion bath, a controller is arranged on the outer wall of the immersion bath, a water outlet of the immersion bath is connected with a filter bin, the temperature sensor, the ultrasonic generator, the heater, the water level sensor and the self-control water inlet are all connected with the controller, the top end of the patient moving trolley is connected with an immersion bedding through multiple ropes, the disposable protective film is laid in the immersion bath and on the immersion bedding and is of a double-layer structure, the periphery of the disposable protective film is fastened on the periphery of the immersion bath and on the periphery of the immersion bedding through fasteners, the disposable protective film is provided with an opening at the position of the water outlet to enable the disposable protective film to be arranged on the water outlet in a sleeving mode, and a sealing device is arranged on the water outlet. The bathtub facilitates immersion bath therapy of the burn patient and is safe, hygienic and capable of avoiding cross infection.

The invention discloses an intertillage fertilizing machine. The intertillage fertilizing machine comprises a machine frame (16); a traction frame (4), a tooth-blade feeding device (28), a soil loosening device (29), a covering device (30), and a walking device (31) are arranged on the machine frame (16); the tooth-blade feeding device (28) comprises a hopper (1), a tooth-blade feed inlet (2), and a feeding pipe (3); the hopper is arranged on the machine frame (16) via support frames (6); the tooth-blade feed inlet (2) is arranged on the bottom of the hopper (1); a connection roller (9) is arranged in the tooth-blade feed inlet (2); the periphery of the connection roller (9) is provided with a plurality of tooth blades (10) uniformly; the outer edge end of each tooth blade (10) is designed to be cooperating with the inner side wall of the tooth-blade feed inlet (2); and a feed inlet end of the feeding pipe (3) is arranged at a feed outlet end of the tooth-blade feed inlet (2). The beneficial effects of the intertillage fertilizing machine are that: fertilizing speed is in direct proportion to moving speed; uniform fertilizing is realized; and fertilization amount is adjustable.

The invention discloses a high pressure resistant cylinder with an approach switch, which comprises a cylinder (4), a front cover (3), a front air inlet (16), a piston rod (1), a buffer cover (5), a piston (6), a buffer nut (7), a back cover (8) and a back air inlet (17), and is characterized in that the front cover (3) and the back cover (8) are respectively connected with the approach switch, the front cover (3) is connected with a front gland (13), the back cover (8) is connected with a back gland (13'), a sealed reversing chamber is respectively formed between the front cover (3) and the front gland (13) and between the back cover (8) and the back gland (13'), an inductive guide rod is respectively arranged in each sealed reserving chamber, and air holes are respectively arranged in the front cover (3) and the back cover (8), and are communicated with the sealed reserving chambers. According to the invention, the high pressure resistant cylinder can automatically reverse and stop, is more conveniently started, and more accurately controlled, so that the total cost of the cylinder is greatly reduced. The high pressure resistant cylinder has good cost performance in the market competition, and can be widely applied in the field of automation.

The invention belongs to the technical field of plant planting equipment and specifically discloses a corn planter which comprises a bottom plate, idler wheels, a discharging barrel, a feeding barrel,an auxiliary barrel, a horizontal rod, a supporting rod, a coulter and an earthing part, wherein an top block is arranged in the discharging barrel, and a blind plate, a sliding block, a thimble, a stopping piece and a high-pressure air cavity are arranged on the auxiliary barrel. The corn planter disclosed by the invention is mainly applied to planting corn and solves the problem of seed waste caused by continuous discharging in mechanical sowing.

The invention discloses a diaper bag wide side welding mechanism. The diaper bag wide side welding mechanism comprises a welding component and a wide side corner component; the welding component comprises an upper heating knife and a lower heating knife and is characterized in that the upper heating knife is connected with the bottom of an upper knife frame, the upper knife frame is connected to the top ends of vertical sliding rods, the lower ends of the vertical sliding rods are connected with outer pushing plates through first longitudinal sliding rail components, the outer pushing plates are connected to a rack wallboard through first vertical sliding rail components, and the outer pushing plates do vertical motion and pushed by first eccentric wheels mounted on a transmission spindle; the lower heating knife is connected to the top of a lower knife frame, the lower knife frame is connected to inner pushing plates through second longitudinal sliding rail components, the inner pushing plates are connected to the rack wallboard through second vertical sliding rail components, and the inner pushing plates do vertical motion to be pushed by second eccentric wheels mounted on the transmission spindle; and the diaper bag wide side welding mechanism is used for diaper bag wide side welding, the mechanism is simple in structure, good in welding quality and high in welding speed, and it is ensured that wide sides are automatically conveyed in place.

The invention provides a cylinder-shaped part microarc oxidation fixture and a using method thereof. The cylinder-shaped part microarc oxidation fixture includes a threaded rod, a gland nut, an upper support, a lower support and a clamping device; the gland nut is sleeved on the threaded rod, the lower surface of the seam allowance of the gland nut is connected with the upper surface of a boss of the upper support, and the lower support is arranged at the end part of the lower end of the threaded rod and is placed below the upper support; the clamping device comprises at least two groups of clamping units, and each group of the clamping units include a pressing rod, a connecting rod and a supporting nail; one end part of the pressing rod is arranged on the upper support, the other end of the pressing rod is provided with the supporting nail, one end of the connecting rod is arranged on the pressing rod, and the other end of the connecting rod is arranged on the lower support; the clamping units are uniformly distributed around the upper support. The cylinder-shaped part microarc oxidation fixture has the advantages of simple structure, low manufacture cost, convenient operation and strong reliability, and is suitable for microarc oxidation treatment of aluminum, magnesium and titanium and alloy specimens thereof.

The invention discloses an electrode device for measuring scalp and skull impedance in animal experiments, and belongs to the technical field of impedance measurement.Split structures of an electrode cap, an electrode core and an electrode outer barrel are integrated into a whole, the electrode core is arranged in the electrode outer barrel, the upper portion of the electrode outer barrel is sleeved with the electrode cap, the wiring way in an electrode is simplified, and elements in a scalp electrode circuit and a skull electrode circuit are tightly combined, so that influences of external disturbance on measurement results are reduced, scalp measurement and skull measurement can be achieved, disassembly, assembly and cleaning work are convenient due to the split structures, and measurement accuracy can be effectively ensured; in addition, a spring is arranged between a skull electrode pad layer and the electrode cap, the height of the skull electrode pad layer can be adjusted through the spring, it can be ensured that the skull electrode pad layer is connected with the electrode core, and it is ensured that the skull electrode makes direct and tight contact with the electrode pad layer.The electrode device is easy and convenient to use and easy to operate, and provides a reliable guarantee for smoothly carrying out animal experiments.

The invention discloses a novel glue application device for a coating machine. The novel glue application device comprises a glue application device body which is composed of an installation box, a glue spraying device, a doctor blade device and an air drying device; the cross section of the installation box is in a right trapezoid shape which is of a hollow structure; the upper top surface of theinstallation box is an inclined surface, and the inclined surface of the installation box is provided with the glue spraying device and the doctor blade device in sequence; and the air drying deviceis installed on one side surface of the installation box. According to the novel glue application device, by arranging the glue spraying device and the doctor blade device, the glue surface of an adhesive product is flatter, the glue application effect is better, and the product quality is higher; by adjusting the glue spraying device and the doctor blade device, adhesive products made of different materials can be subjected to glue application, large errors and low efficiency which are caused by manual adjusting are avoided, and the glue surface of an adhesive product can flatter advantageously; and meanwhile, a glue liquid stirring structure is arranged, and the situation that the product adhesion quality is poor due to the fact that the upper density and the lower density of glue liquidare uneven is prevented.

The invention discloses a water sampling device for water pollution detection and a sampling method thereof. The water sampling device comprises a base, trundles are movably installed at the bottom ofthe base, a handrail is fixedly installed on one side of the upper portion of the base, and a sampling tank is fixedly installed at the position, located on one side of the handrail, of the upper portion of the base; a visible window is embedded in one side of the front surface of the sampling tank, a water pump is fixedly installed at the position, close to the middle, of the upper portion of the base, a conveying pipe is arranged between a water outlet of the water pump and the sampling tank, and a water inlet of the water pump is fixedly connected with a connecting pipe. The water samplingdevice for water pollution detection has a water pipe storage function to improve the use convenience, has a water pumping pipe lifting function to be suitable for various pools, ponds, lakes and other places, has a wide application range, has an excellent cleaning function. The water pumping pipe can be cleaned while the water pumping pipe is wound, and the practicability is higher.

The invention discloses a water feeding pump convenient to put. The water feeding pump comprises a fixing frame, a hasp, a top cover, a pull ring, a traction rope, a water outlet pipe, a communicatingpipe, an electromagnetic valve, an annular air bag box, a communication hole, a first electric push rod, a protective tube, a water filter plate, a filter net, a connecting column, a bottom plate, adamping spring, a rubber ring, a sliding rod, a sleeve, a water pump main body, a gate plate and a second electric push rod. The water feeding pump is reasonable in structure, novel in design, easy tooperate and convenient to install, the water pump is provided with a protective device through the fixing frame, and the water pump is prevented from being scratched in the water bottom; impurities in the water can be conveniently intercepted through the filter screen and the filter plate, the impurities are prevented from blocking a water inlet, the water inlet is prevented from being blocked bythe damping spring and the rubber ring, vibration reduction can be provided for the work of the water pump, noise is reduced, and a connection tube of the water pump is convenient to protect throughthe protective tube; and the floating movement of the water pump main body on the water surface is facilitated through the annular air bag box and the traction rope, a proper putting position is selected, and the feeding of the water feeding pump is facilitated.

The invention discloses a watering and fertilizing integrated device for tea growth, relates to the technical field of tea planting, and solves the problem that an existing fertilizing device performs fertilizing operation in a ploughing manner, and ploughing easily destroys root systems of tea trees under the ground. The watering and fertilizing integrated device for tea growth comprises a main frame; the main frame comprises a handle frame, a front wheel, a rear shaft, a lead screw and a connecting shaft, and the rear portion of the main frame is slidably connected with the handle frame; the front wheel is connected to the front part of the main frame in a sliding manner; the front wheel is connected with the lead screw in penetrating and meshing manners; the rear shaft is connected to the bottom of the main frame in a penetrating manner, and the two sides of the rear shaft are each provided with a hub; and a power module belt is connected to the middle of the rear shaft through a belt. By means of the watering and fertilizing integrated device, the ground is punched through a spiral shaft, and compared with the ploughing mode, damage to the ground is reduced through a point type fertilization manner, and damage to roots of the tea trees is reduced.

The invention discloses a movable type automatic rubber cutting device. The movable type automatic rubber cutting device comprises a strip-shaped bearing base; the upper surface of the strip-shaped bearing base is fixedly connected to a workbench; a movable cutting mechanism is arranged on the upper surface of the workbench; and a movable fixing mechanism is arranged on the lower surface of the strip-shaped bearing base. The movable type automatic rubber cutting device has the beneficial effects that the operation is relatively simple, block rubber to be cut only needs to be placed on the device, four-surface cutting or multi-surface cutting can be carried out through control, and therefore the cutting distance and the cutting depth can be adjusted conveniently, cutting is relatively convenient, the shape of the cut end surface is good, and the labor intensity can be reduced.

The invention discloses a flow control facilitating portable water color brush pen for students. An upper pen barrel, a reset spring, a fixing barrel, an installing sleeve and a pen cap are included. A first kneading block and a second kneading block penetrate through the side face of the upper pen barrel for installation, and connecting rods are arranged below the first kneading block and the second kneading block. The two ends of the reset spring are connected with the upper ends of the first kneading block and the second kneading block correspondingly. The lower ends of the connecting rods are connected with the top of a push rod. Sliding grooves are formed in the surface of the upper pen barrel, the upper end of a lower pen barrel penetrates through the sliding grooves, clamping ports are formed in the upper portion of the inner wall of the pen cap, check rings are arranged in the pen cap, and a silica gel pad is fixed to the outer side of the upper pen barrel. According to the flow control facilitating portable water color brush pen for students, when the ink amount is insufficient, only a capillary tube needs to be downwards pressed; and when the ink discharging amount is sufficient, only a pen body needs to be elevated, the larger the flowing-out ink amount is, the denser the color becomes, and the color shade is convenient to adjust.

The invention discloses a check-in device and a check-in method for orienteering. The device comprises a sleeve plate; a vertical plate is arranged in an inner cavity of the sleeve plate; the top of the vertical plate extends to the exterior of the sleeve plate; a groove is formed in the top of the vertical plate; an L-shaped plate is arranged on the top of the back of the vertical plate; the front side of the L-shaped plate penetrates through the groove; the front side of the L-shaped plate is fixedly connected with an electronic clock-in device; the left side of the top of the electronic clock-in device is fixedly connected with a signal transceiver. The device and the method prevent the situation that athletes are affected by various factors in the course of competition, so that the recorded data is invalid, and the achievement is further invalidated; furthermore, the athletes can observe whether the achievement is recorded or not during the competition, so that the problem that dueto the influence of the various factors such as environment, machines and the like, an electronic machine has certain invalidity and cannot record the achievement of the athletes, and the achievementis further invalidated since the data is still not recorded after the athletes check in and the electronic clock-in device is lightened can be solved.

The invention discloses an auxiliary channeling device for sweet potato planting and a channeling method thereof. The auxiliary channeling device comprises a top seat and a channeling mechanism, wherein mounting backup plates of inverted isosceles trapezoid structures are perpendicularly arranged on the left side and the right side of the bottom end face of the top seat; the channeling mechanism comprises two hoisting sleeves, a cross beam, a plurality of channeling plates and two slope push plates, connecting columns are perpendicularly arranged in the central positions of the top end faces of the plurality of channeling plates and the two slope push plates, the top end faces of the connecting columns are connected with inserting sleeves, and the plurality of channeling plates and the twoslope push plates are rotationally connected with the outer wall of the cross beam in a sleeving mode through the inserting sleeves; and rectangular adjusting blocks are fixedly welded to the top ends of the side walls of the sides, far away from each other, of the two hoisting sleeves, and the two hoisting sleeves are slidably connected with inner cavities of rectangular adjusting grooves of thetwo mounting backup plates in a clamped mode through the rectangular adjusting blocks correspondingly. According to the auxiliary channeling device for sweet potato planting and the channeling methodthereof, rapid channeling operation is convenient to assist, and the channeling channel span and the channeling channel depth are convenient to adjust, so that channeled channels are smooth and orderly, and the planting requirements of sweet potatoes are met.

The invention discloses a supporting and fixing device for a water pipeline used in water conservancy projects and a method for using it, comprising a mounting plate, the four corners of the top of the mounting plate are provided with mounting holes, and the center of the top of the mounting plate is fixedly connected with a first screw thread Rod, the surface of the first threaded rod is movably sleeved with a horizontal plate, the top of the first threaded rod is fixedly connected with a circular plate, and the surface of the first threaded rod is threaded at the bottom of the horizontal plate with a nut , the top of the nut is in contact with the bottom of the cross plate. The invention solves the problem that the existing pipeline support and fixing device has a simple structure and cannot buffer and support the pipeline. When the water source is transported, the pipeline is easy to collide and rub against the support device, which reduces the service life of the pipeline and cannot adjust the height and height of the support device. The width is adjusted, so that it is inconvenient to fix the support device, and at the same time, the rotation angle of the support device cannot be adjusted, which reduces the applicability of the support device.

The invention discloses a remediation system for NAPL pollution in underground water based on pollution prevention control. The system comprises a vertical barrier wall for blocking polluted underground water in the vertical barrier wall; a water pumping unit which is used for pumping out underground water in the polluted area and providing pressure difference for pollutants to flow through a vertical treatment system; a vertical treatment unit which is used for treating the polluted underground water to remove NAPL; and a recharging unit which is used for pumping out the water treated by thevertical treatment unit and recharging the water to a target water-containing layer of the polluted area. The invention provides the remediation system suitable for NAPL pollution in underground waterof various NAPL pollution types and different pollution depths in order to overcome the defects that a traditional extraction treatment method is poor in effect, low in pertinence and prone to rebounding. The method can be used for repairing DNAPL pollution in underground water and repairing LNAPL pollution, and NAPL pollutants with different pollution depths in underground water can be flexiblyand effectively repaired and removed.

The invention discloses a child's desk with a height adjusting function. The child's desk comprises a desk surface assembly, two side plate assemblies and two support feet. The desk surface assembly is supported on the side plate assemblies and comprises a desk plate and a framework under the desk plate. Two ends of the framework are respectively connected with the side plate assemblies, each of which comprises a side plate and a connecting pipe on the back side of the above side plate. Connecting pipes correspond to the support feet one by one. Each support foot comprises a connecting rod and a bearing plate, both of which are connected as a whole. Connecting rods are vertically arranged and support plates are horizontally arranged. The connecting rods are inserted into the corresponding connecting pipes. The connecting pipes are provided with adjusting nuts used for fixing the connecting rods. The child's desk with the height adjusting function has following advantages: the child's desk is simple in overall structure, convenient and rapid in installation, high in support capability, little in damage to the ground and flexible and convenient in height adjustment and is used comfortably.

The invention relates to a precise positioning auxiliary device for perineal prostate puncture. The precise positioning auxiliary device comprises a puncture support and a supporting seat, wherein the puncture support comprises a clamping sleeve which can be clamped outside a probe base body; a sliding chute is formed in the outer surface of the clamping sleeve along the axis direction of the clamping sleeve; a sliding plate which can slide along the sliding chute and can be fixed is arranged in the sliding chute; a puncture guide plate perpendicular to the axis of the clamping sleeve is fixed at one end of the sliding plate; a column of grooves of which the extending directions are parallel to the axis of the clamping sleeve are formed in the puncture guide plate; a locking positioning plate for penetrating through the probe base body and a puncture angle device are fixedly arranged on the upper surface of the supporting seat; the locking positioning plate can fix the probe base body; and the puncture angle device can measure an included angle between the puncture guide plate and the horizontal plane.

The invention discloses a convenient-to-adjust connection terminal power-on detection device with a safety protection structure, and relates to the technical field of connection terminal detection. The device comprises a machine body, a connection terminal mechanism, a first positioning mechanism and a second positioning mechanism, wherein moving wheels are arranged on the two sides of the lower part of the machine body; a hollow table is fixed above the machine body; a power connection box is arranged in the hollow table; a back plate is welded on the rear side of the upper part of the hollowtable; a top plate is fixed above the back plate; an air cylinder is arranged on the lower side of the front part of the top plate; a piston rod is arranged below the air cylinder; a lifting plate isfixed below the piston rod; and a mounting box is fixed on the lower side of the lifting plate. The device has the beneficial effects that the device can be arranged on the outer side of the upper part of a power-on test board through a protective outer frame of a transparent structure to carry out safety protection on the power-on test board, and meanwhile, the protective outer frame is made ofan insulating material, so that the risk of electric shock caused by the fact that an operator approaches the power-on test board can be avoided.

The invention discloses an aquatic product breeding net cage. The net cage comprises an outer net cage body, and a small-hole isolation net fixedly wraps the outer surface of the outer net cage body;the inner bottom face of the outer net cage body is fixedly connected with a connecting column through a connecting rod; a connecting hole is formed in the connecting column, and a floating cylinder is fixedly connected to the lower surface of the connecting rod through a fixing rod; the interior of the connecting hole is in sliding connection with a pull rope, and the lower surface of the pull rope is fixedly connected with a balancing weight through a pull ring; the outer surface of the connecting column is in sliding connection with an inner net cage body through a connecting cylinder, theouter surface of the inner net cage body is slidably connected to the inner side surface of the outer net cage body, and a large-hole isolation net fixedly wraps the inner side surface of the inner net cage body. According to the aquatic product breeding net cage, by means of the outer box structure connected with the balancing weight and the pull rope and the outer net cage body connected througha hinged lengthened cylinder, the convenience and stability of breeding can be greatly improved, the breeding effect is improved, and the cost is reduced.

Split type turbocharger compressor volute, including contour body and runner body. The contour body is provided with a threaded hole and a conical hole for fixing the flow channel body, and the conical hole is provided with a first sealing groove and a second sealing groove. The flow channel body is provided with a pressure plate, a cone and a flow channel that match the conical hole on the contour body. The pressure plate is provided with a countersunk screw hole. The sealing groove matches the first sealing groove and the second sealing groove. During installation, the flow channel body is fastened in the contour body by the hexagon socket head bolt, and a diffuser groove is formed between the end surface of the pressure plate on the flow channel body and the body cavity of the contour body, and two O-rings are respectively installed on the first part of the contour body. In the first sealing groove and the second sealing groove and the first sealing groove and the second sealing groove on the flow channel body, two O-shaped sealing rings are used to seal the conical joint surface of the contour body and the flow channel body.

The invention discloses an intertillage fertilizing machine. The intertillage fertilizing machine comprises a machine frame (16); a traction frame (4), a tooth-blade feeding device (28), a soil loosening device (29), a covering device (30), and a walking device (31) are arranged on the machine frame (16); the tooth-blade feeding device (28) comprises a hopper (1), a tooth-blade feed inlet (2), and a feeding pipe (3); the hopper is arranged on the machine frame (16) via support frames (6); the tooth-blade feed inlet (2) is arranged on the bottom of the hopper (1); a connection roller (9) is arranged in the tooth-blade feed inlet (2); the periphery of the connection roller (9) is provided with a plurality of tooth blades (10) uniformly; the outer edge end of each tooth blade (10) is designed to be cooperating with the inner side wall of the tooth-blade feed inlet (2); and a feed inlet end of the feeding pipe (3) is arranged at a feed outlet end of the tooth-blade feed inlet (2). The beneficial effects of the intertillage fertilizing machine are that: fertilizing speed is in direct proportion to moving speed; uniform fertilizing is realized; and fertilization amount is adjustable.

The invention discloses an intelligent water sink. The intelligent water sink comprises a water sink body, a water faucet and a control unit, wherein the water sink body is provided with a tabletop and a sink body; the water faucet is arranged on the water sink body; the bottom part of the sink body is provided with a water outlet, and the bottom part of the water outlet is connected with a waterdrainage pipe; a lifting table plate is arranged in the sink body, and is flush with the tabletop when the table plate ascends to the highest point; a water leakage passage is arranged between at least one side wall of the table plate and the inside wall of the sink body, and is communicated with the water outlet at the bottom part of the sink body; a driving mechanism is arranged under the sink body, and is used for adjusting the lifting height of the table plate; the control unit is used for controlling the driving mechanism to drive the table plate to lift. The intelligent water sink has the advantages that the cleaning function is realized, and the intelligent water sink can be used as the tabletop so as to obtain a larger kitchen space.

The invention discloses an environment-friendly water treatment sample extraction device which comprises a supporting base. A sampling box is fixedly connected to one side of the top end of the supporting base, an observation window is installed on the side wall of one side of the sampling box, and a water pump is arranged at the top end of the supporting base and located on one side of the sampling box; two ends, far away from one side of the sampling box, of the water pump are fixedly connected with side blocks; a winding roller is arranged between the two side blocks, the middle of the winding roller is fixedly connected with a connecting shaft, the connecting shaft is rotatably connected between the two side blocks, and one end of the connecting shaft is fixedly connected with an output shaft of a first motor. The device has the beneficial effects that through arranging the first motor and the winding roller, the first motor drives the connecting shaft to rotate, the winding rolleron the connecting shaft rotates, the connecting wire on the winding roller is paid off, the length of the connecting wire can be adjusted, the sampler pulls the connecting wire to sink into water under the action of the gravity of the sampler, the depth of the sampler in water can be adjusted conveniently, water sources with different depths can be sampled, and sample data obtained through sampling is accurate.