127results about How to "Easy to sample" patented technology

This utility model relates to the field of wastewater sampling devices, and more particularly to a wastewater sampling device for environmental monitoring, comprising a U-shaped frame and a wastewater detector fixed to the upper end of the U-shaped frame; a first groove is provided through the upper end of the U-shaped frame, and a clamping mechanism is provided at the lower end of the U-shaped frame. This utility model involves placing a movable plate below the U-shaped frame, activating the clamping mechanism to clamp and fix the movable plate, activating the winding mechanism on the upright block to lower the sampling cylinder, and activating the stirring mechanism to stir the dirt at the bottom of the water. The stirred mixture then enters the interior of the sampling cylinder through the inlet groove for temporary storage, and the threaded cylinder is easily removed from the winding mechanism for convenient rapid wastewater sampling. The sampled liquid is placed in the wastewater detector, which can then be activated to test the wastewater. This solves the problem that when sampling wastewater inside a sewage well, it is difficult to disturb the dirt at the bottom of the water body before sampling, making rapid wastewater sampling and testing inconvenient.

The invention relates to the field of biological medicines, and discloses application of serum EPSTI1 in preparation of a product for diagnosing liver cancer and evaluating whether a liver cancer patient is resistant to a revatinib or not. The invention provides a detection means which is convenient and rapid in sampling, small in risk and relatively low in cost, the content of EPSTI1 in serum is detected through an enzyme-linked immunosorbent assay, a liver cancer patient and a non-liver cancer patient can be effectively distinguished, and a lovatinib drug-resistant liver cancer patient and a non-drug-resistant liver cancer patient can be effectively distinguished. Prognosis analysis shows that the serum EPSTI1 can be used as a marker for evaluating the prognosis state of the liver cancer patient taking the lenvatinib, and has important significance in improving the survival rate of the liver cancer patient.

The utility model relates to chemical reaction appliance technical field discloses the reaction container sealing device for dye method CYP enzyme induction research, including bottle body, the outer wall top of bottle body installs the closed mechanism, the closed mechanism is used for the inside of convenient closed equipment, prevents the inside of equipment from leaking, the outer wall right side of bottle body installs the sampling mechanism, the sampling mechanism is used for the sampling and charging of equipment, reduces the reaction of equipment inside material and outside, the closed mechanism includes the central axis, the central axis sets up in the outer wall top of bottle body. In the utility model, after putting the material to be researched into the inner wall of bottle body, the central axis is inserted into the bottle mouth in alignment, the outer shell is rotated to make the curved groove move, the sliding block is moved along the sliding groove, the sliding groove prevents the displacement of sliding block, the telescopic shaft is extended from the inner wall of central axis, the inside of bottle body is closed, the rubber ring enhances the air tightness to make the sealing pressure of container, the degree of fit consistent reduce the influence on data.

The utility model discloses a kind of construction engineering bending device, relate to construction engineering construction technology field, the construction engineering bending device, including bending table, the upper fixed mounting of bending table has electric cylinder one, the output end fixed mounting of electric cylinder one has article placing table, still including fixing device and auxiliary device;Among them, fixing device includes fixed plate, motor, transmission shaft, bearing wheel, sliding shaft, bending wheel, connecting rod, clamping plate, stop rod and guide plate, the fixed plate is fixedly installed in the below of bending table, the motor is fixedly installed in the side of bending table, the transmission shaft is fixedly installed in the output end of motor, the construction engineering bending device is completed to the clamping fixation of raw material by the feeding operation of electric cylinder one, simultaneously after completing bending, re-release clamping fixation to building material, it is convenient to subsequent sampling after completing bending, and staff does not need to be fixed one by one, improve the bending efficiency of building material.

The invention discloses a lower discharging foaming device which comprises a movable base, a lower discharging foaming device, a lower discharging foaming device and an upper discharging foaming device, and a walking wheel set is arranged at the bottom of the movable base; the vertical bracket is fixedly mounted on the movable base; the variable-length flow guide mechanism comprises a flow guide channel which is arranged in an inclined mode and is telescopic in length, and the higher end of the flow guide channel is connected with the upper portion of the vertical support; the length adjusting driving mechanism is mounted on the vertical bracket, is in transmission connection with the movable part of the length-variable flow guide mechanism, and is used for driving the movable part to move so as to change the effective length of the flow guide channel; and the buffer mechanism is arranged in the groove of the flow guide groove channel and is used for providing damping buffer when the foaming profile slides down along the groove.

The utility model discloses an auxiliary device for particle raw material production, and belongs to the field of production devices. The cover plate is detachably connected with one end of the hopper; the stock bin is communicated with the other end of the hopper; the feeding pipe is connected with the cover plate and is communicated with one end of the hopper; the door body is movably connected with the cover plate; the filter screen and the magnetic plate are sequentially connected in the hopper from one end to the other end of the hopper. The angle bearing pieces are connected into the hopper at intervals, and the filter screen abuts against the angle bearing pieces. The corner bearing piece comprises a connecting plate and a bearing plate which are connected in a bent mode, the connecting plate is connected with the hopper, and the bearing plate abuts against the filter screen. And the distances between the adjacent corner bearing pieces are equal. The particle raw material filtering device has the technical effects that impurities in particle raw materials can be conveniently filtered, and the sampling operation complexity is also conveniently reduced.

The application relates to the field of medical devices and provides a biopsy device suitable for an interventional operating room, which comprises a shell, a first cavity and a second cavity are arranged in the shell, a side wall of the shell is communicated with a side wall of the second cavity through a second channel, the side wall of the shell is communicated with the side wall of the second cavity through two or more first channels, an adsorption mechanism is arranged in the first cavity, a transmission mechanism is arranged in the second cavity, a temporary storage mechanism is arranged in the first channel, and a cutting mechanism is arranged on the shell. The application can conveniently sample multiple biopsy tissues of different parts of the human body, does not need to use a cutting knife, improves the operation efficiency and convenience, temporarily stores different biopsy tissues, prevents the biopsy tissues from falling, and prevents the biopsy tissues from being polluted.

The application discloses a primer probe combination for detecting methylation of two sites of colorectal cancer and a kit thereof. The primer probe combination is a primer probe combination for detecting methylation of a cg08392199 site of a LIFR gene and a primer probe combination for detecting methylation of a cg13096260 site of a SDC2 gene; the methylation of the cg08392199 site of the LIFR gene and the cg13096260 site of the SDC2 gene is correlated with colorectal cancer. The kit comprises the primer probe combination. The application adopts combined detection of the two sites of SDC2 and LIFR for the first time, has innovation, and the sensitivity of combined detection of the two sites in the detection of colorectal cancer reaches 92%, and the specificity is as high as 100%, thereby providing a primer probe combination for early screening of colorectal cancer with high sensitivity and high specificity and a kit.

The utility model provides a pollution reduction and carbon reduction coal-fired power plant SCR denitration catalyst on-line sampling device, relates to the field of pollution reduction and carbon reduction synergistic interaction, and comprises a sampling barrel I, a connecting piece is mounted at one end of the sampling barrel I, a sampling barrel II is mounted on the other side of the connecting piece, mounting grooves are equidistantly formed in the surface of the sampling barrel II, and the sampling barrel I and the sampling barrel II are mounted in the mounting grooves. A catalyst test piece is movably mounted on the inner wall of the mounting groove, and an air inlet is formed in the other end of the sampling barrel II. According to the utility model, the device is mounted in a position needing sampling by holding the handle with a hand, and the air pump is started to extract air, so that the air enters the device through the air inlet to be in contact with the catalyst test piece, and meanwhile, the air is filtered through the filter piece I and the filter piece II when entering the device, so that the sampling of the device is more convenient and quicker; and the whole device is of a hollow structure, so that the weight of the device is reduced, and the device is more convenient and faster to carry and install and is more perfect.

The present application relates to the technical field of robots, and especially relates to a collection device for monitoring fish community based on environmental DNA technology, which comprises a sampling device and a sample collecting device, liquid samples are sucked through the sampling device, the liquid samples are stored in the sample collecting device after being delivered, the floating and sinking state of the collection device is controlled through the floating device, so that the collection device is suspended in water, the expansion state of the collection device is controlled through the shape adjusting device, the suspension height of the collection device in water is adjusted, and the screw propeller assembly is arranged on both sides of the shape adjusting device, the movement of the collection device in water is controlled through the cooperation of the screw propeller assembly and the shape adjusting device. The device can make the whole collection device float on the water surface, sample the water area at the surface shallow position of the water body, and also control the floating and sinking state of the whole collection device, so that the collection device is suspended at different heights in water, sampling in multiple positions and multiple aspects is facilitated, and the diversity of sampling is increased.

The present application relates to the technical field of medical devices, in particular to a puncture suture device and a method for using the same. The puncture suture device comprises a puncture cannula, which is detachably fixedly connected with any one of a fascia assembly and a gas blocking valve assembly; an axial end of the puncture cannula is provided with a fixing boss; a plurality of notches are formed in the fixing boss along the axial direction; any one of the fascia assembly and the gas blocking valve assembly is provided with a fixing groove at an end close to the puncture cannula, the fixing groove is in a socket connection with the fixing boss; an inner side circumferential wall of the fixing groove is provided with a plurality of protrusions corresponding to the notches; in the assembly process, the protrusions are screwed and clamped with the fixing boss via the notches. The puncture suture device provided by the present application enables a surgeon to perform fascia suture without pulling out the puncture cannula after completing puncture at a specified position of an abdominal wall, thereby avoiding the risk of secondary damage to a wound of a patient.

This utility model discloses a novel flexible gas sampling head, relating to the field of gas sampling technology. The novel flexible gas sampling head includes a handle, a connector threaded to the inner wall of the handle, an outlet pipe inserted into the inner wall of the connector, the outer wall of the outlet pipe fixedly connected to the inner wall of the handle, a sealing block fixedly connected to the inner wall of the connector, the inner wall of the sealing block threadedly connected to the outer wall of the outlet pipe, a fixing frame threadedly connected to the outer wall of the connector, and a connecting pipe fixedly connected to the inner wall of the fixing frame. This utility model, through its sampling mechanism, achieves convenient sampling in complex environments. During sampling, the universal joint designed in the sampling mechanism allows the sampling pipe to be twisted in any direction, thereby facilitating sampling of leak points.

The utility model provides a kind of rock core drilling sampling device, mainly relates to geological sampling equipment field.A kind of rock core drilling sampling device, including drill pipe.The utility model has the beneficial effects that: by setting drill pipe structure for cutting rock core, further to the rigidity of moving strip groove board structure around drill pipe structure is set, cutting opening is increased by the rigidity of moving strip groove board and drill pipe jointly cutting, and then the activity of rock core extraction process increases, and rock core extraction work is conveniently carried out, further by setting rigid moving strip inside rigid moving strip groove board for supporting the overturning cutting plate structure provided in the bottom side inside drill pipe, cutting is carried out around the core in drill pipe by overturning cutting plate overturning protruding cooperation drill pipe rotation, and then cutting groove is formed to facilitate the core in borehole to be taken out for sampling.

The utility model provides a depth-keeping and quantitative sampler for underground water and surface water for hydrogeology. The depth-keeping and quantitative sampler for the underground water and the surface water for the hydrogeology comprises a collecting barrel, the top of the collecting barrel is movably sleeved with a positioning frame, and the top of the positioning frame is fixedly connected with a positioning ring. According to the fixed-depth and quantitative sampler for the underground water and the surface water for the hydrogeology, provided by the utility model, by arranging the positioning frame, when deep well water flow sampling needs to be carried out, one end of the pull rope is fixed in the positioning ring, and at the moment, the sampling barrel is started to be put into a deep well, so that water flow enters the sampling barrel through the water inlet; and when the water flow collection is finished, the pull rope is lifted to drive the collection barrel to lift, and the water inlet is sealed by the sealing plate, so that the water flow can be taken out from the interior of the deep well, the problem that the water flow is relatively inconvenient to convey and collect through a pipeline is avoided, and the underground water is conveniently sampled.

The utility model discloses a soil sampling device for archaeological, which relates to the technical field of archaeological equipment and comprises a shell, a dust collecting cavity, a collecting cavity and a feeding cavity are arranged in the shell, the dust collecting cavity is communicated with the collecting cavity through a first connecting pipe, the collecting cavity is communicated with the feeding cavity through a second connecting pipe, and a drill bit is arranged in the feeding cavity. The first sampling assembly is used for driving the drill bit to sample, an air extracting pump and a second sampling assembly are mounted at an opening of the dust collecting cavity, and the first sampling assembly comprises a spiral feeder mounted on the drill bit; according to the utility model, soil around and on the remains can be collected and sampled, and sampling can be conveniently carried out from fine gaps or the surfaces of the remains, so that the soil components on the remains can be analyzed simultaneously, and the corrosion degree of the remains at the moment can be judged according to the difference of the components of the two kinds of soil.

The application provides a biomarker for assisting in diagnosing systemic lupus erythematosus and application thereof, proves that 15(S)-HETE has good diagnostic efficiency for systemic lupus erythematosus, and the diagnostic efficiency is improved after 15(S)-HETE is combined with anti-dsDNA antibody or anti-Smith antibody, has good diagnostic efficiency for systemic lupus erythematosus with negative specific autoantibody, and 15(S)-HETE can also reflect the disease activity of systemic lupus erythematosus.

This utility model belongs to the field of soil drilling equipment and provides a drilling device for soil resistivity detection. It includes a base, a through groove at one end of the base, and a mounting frame fixedly connected to the upper surface of the base. The mounting frame has a U-shaped structure and contains a mounting column. This utility model mounts a screw rod to a drive motor. Starting the drive motor rotates the screw rod, and starting a first servo motor drives the screw rod to rotate via its output end. The rotation of the screw rod moves a slider within a groove, thus adjusting the height of the mounting column and the screw rod on it. This facilitates soil sampling. Furthermore, the tilt angle of the mounting column can be adjusted via an adjustment component, facilitating sampling of surrounding soil. Compared to existing soil sampling tubes, this device effectively improves the diversity of soil sampling results.

The application provides a hydrofluoric acid sealed sampling device, which comprises a storage bottle for storing hydrofluoric acid, a connecting mechanism arranged at a connecting port of the storage bottle, and a sampling mechanism matched with the connecting mechanism to sample the hydrofluoric acid, the connecting mechanism comprises a sealing cover arranged at the connecting port of the storage bottle, a connecting assembly arranged on the sealing cover, and a cleaning assembly arranged on the connecting assembly, the connecting assembly comprises a liquid delivery member with one end penetrating into a storage groove of the storage bottle and the other end penetrating above the sealing cover, and a connecting member arranged above the sealing cover and connected with the liquid delivery member, and the cleaning assembly comprises a cleaning block connected with the cleaning assembly through a connecting groove, and the cleaning block is connected with the cleaning assembly, the application can safely sample the hydrofluoric acid, and avoids the volatilization of the hydrofluoric acid into the air to cause danger.

The application provides a high-expression molecular marker 5'-tiRNA for gastric cancer screening Gly , and relates to the technical field of biomedicine. The application provides a high-expression molecular marker for gastric cancer screening, characterized in that the molecular marker is 5'-tiRNA Gly , and the 5'-tiRNA Gly is derived from the 5'-half of tRNA-Gly-GCC. The application proves that the 5'-tiRNA Gly can be used as a gastric cancer diagnosis marker, and can be used for diagnosing and predicting gastric cancer by detecting the expression amount of the 5'-tiRNA Gly in serum, and has the advantages of high specificity and sensitivity.

The utility model discloses a medical anti-slip, convenient flushing, pressure measurable single 'J' tube, which comprises a single J tube annular part and a single J tube main body, the right end of the single J tube main body is provided with the single J tube annular part, the left end of the single J tube main body is provided with a single J tube side branch, the lower side of the single J tube side branch is provided with a drainage bag, and the drainage bag is provided with a drainage hole. The single J tube collateral branch is connected with the drainage bag through a collateral branch flushing sampling end, and is used for a patient subjected to ureteral skin stoma pelvis ureteral drainage after radical bladder resection, the postoperative ureteral stent can be better prevented from slipping, the postoperative ureteral stent can be conveniently flushed, necrotic tissues and foreign matters can be flushed out in time, flushing and pressure measurement are facilitated due to sufficient drainage, and the drainage effect is good. Risks of hydronephrosis and exuresis caused by blockage of the ureteral stent after the operation of a patient are reduced, sampling after the operation is convenient, the condition of intrarenal pressure of the patient is known in time, and the problems that the ureteral stent slips easily and is difficult to wash in the perioperative period are solved.

The invention relates to the field of soil sampling devices and discloses a soil sampling device which comprises a movable main machine frame, a drilling power device is arranged in the main machine frame, a drill rod is arranged at the bottom of the drilling power device, a drill bit is fixedly installed at the bottom end of the drill rod, and at least two sampling devices which are longitudinally arranged at equal intervals are installed on the drill rod. The sampling device comprises a pipe body fixedly installed in the drill rod, two piston pipes are movably installed in the pipe body in a sleeved mode, sampling shafts are movably installed in the two piston pipes in a sleeved mode respectively, and sampling grooves located in the piston pipes are formed in the side faces of the sampling shafts. A drilling power device drives a drill bit and a drill rod to drill into the ground until a sampling device is located at the depth needing sampling, the drill rod is kept to drive the sampling device to rotate horizontally, a piston pipe firstly moves to the outer portion of a pipe body and is close to the outer edge of loose soil, a sampling shaft moves to the outer side of the piston pipe, and the soil enters a sampling groove; multiple layers of soil can be efficiently sampled at the same time.

This utility model discloses a sampling and testing device for enzyme-containing laundry detergent production, including a base, a conduit, a hose, a peristaltic pump, a frame, an adjustment component, and a filter component. The adjustment component is installed inside the frame, and the filter component is installed between the hose and the conduit. The filter component performs a filtering effect when sampling the enzyme-containing laundry detergent. This utility model has a peristaltic pump installed on the surface of the lifting plate to work with the hose to connect the conduit. When sampling the enzyme-containing laundry detergent, the detergent passes through a coarse filter and a fine filter before entering the hose to filter out large particles. In addition, the conduit is supported by a movable sliding plate and a round rod at the bottom of the adjustment frame. Adjusting the position of the sliding plate can adjust the position of the conduit, which facilitates sampling of enzyme-containing laundry detergent at different depths.

The utility model discloses a multifunctional soil sampling suite, and relates to the technical field of soil detection, the multifunctional soil sampling suite comprises a soil shovel cylinder and a multifunctional soil sampling mechanism, the upper side of the soil shovel cylinder is provided with the multifunctional soil sampling mechanism, through the arrangement of the multifunctional soil sampling mechanism, when the multifunctional soil sampling suite needs to be used, a cylinder top limiting block and a detachable cover are buckled with each other; when the soil shovel cylinder is used, force can be transmitted through the buckling state of the detachable cover and the cylinder top limiting block, and when the soil shovel cylinder collects desired soil, the detachable cover can be taken down, so that the soil in the soil shovel cylinder is taken out relatively completely, damage to soil layering after soil collection is reduced, and the soil shovel cylinder is convenient to use. The detachable cover and the barrel top limiting block can be limited and fixed through the barrel top connecting buckle and the top cover connecting buckle through the connecting bolts, and the problem that when the soil shovel barrel is taken out, the soil shovel barrel falls into the soil due to the fact that the buckle fixing capacity between the detachable cover and the barrel top limiting block is insufficient is solved.

The utility model provides a cervix uteri sampler which comprises a supporting rod. A spiked club is fixedly arranged at the top end of the supporting rod, a banister brush is fixedly arranged on the surface of the spiked club, a sleeve sleeves the surface of the spiked club, the sleeve and the spiked club are made of silica gel materials, a first ball head is fixedly arranged at the top end of the sleeve, an opening is formed in the middle of the top end of the first ball head, and a supporting plate is fixedly arranged at the bottom end of the sleeve. A rod sleeve in sliding connection with the supporting rod is fixedly arranged in the middle of the supporting plate, and a push-pull plate is fixedly arranged at the bottom end of the rod sleeve. The sleeve can be guided through the first ball head, the sleeve can be inserted into the cervix uteri, when the cervix uteri of a cervical atrophy patient and a conization postoperative patient is sampled, the sleeve can reach the sampling position, the sleeve can be taken down from the spiked bat through the opening by pulling back the sleeve, and then the spiked bat can be exposed; and the mace can brush cells in a scale column junction area through the banister brush, so that the accuracy of a sampling position is ensured.

The utility model discloses a high-efficiency energy-saving pneumatic drying system for modified starch production, and aims to provide a high-efficiency energy-saving pneumatic drying system for modified starch production, which can improve the starch drying speed, and has the technical scheme that the high-efficiency energy-saving pneumatic drying system for modified starch production comprises a machine body which is also provided with a material inlet, and is characterized in that a buffer box is arranged below the material inlet; two cyclone separators are arranged below the buffer box, a heating coil is further arranged on the outer wall of the buffer box, a material distributing device is arranged between the buffer box and the cyclone separators and comprises a material distributor located below the buffer box, two outlets are formed in the material distributor and connected with the cyclone separators respectively, and the heating coil is arranged on the outer wall of the buffer box. An electromagnetic valve is further arranged on an outlet of the distributor, a material storage box is further arranged below the cyclone separator, and a recycling device is further arranged on the material storage box.

The utility model discloses a cotton fiber marklon value quick detection sampler, include: base and the setting of base be used for containing the article roll of cotton fiber and the sampling mechanism of the left end setting of base upper surface, the four corners of base all are provided with mounting hole, and the upper surface middle part front end of base all is fixedly connected with the prop, and the front side top of prop is fixedly connected with motor, the output shaft fixed connection of motor has square block, the front side axle body middle part of article roll is provided with square groove, and the top of article roll is provided with feeding mechanism, and the inside middle part fixed connection of article roll has inner housing, the inside left end front middle and back of inner housing all are fixedly connected with first automatic telescopic link, and the output of first automatic telescopic link is fixedly connected with arc pressboard. This cotton fiber marklon value quick detection sampler sets up extrusion mechanism, and the convenient sampling is arranged, and the article roll can dismantle, and the convenient cleaning is arranged, and when sampling mechanism installation, the sampling mechanism is fixed conveniently.

The application discloses a production device for preparing 5N high-purity tellurium from 2N crude tellurium, which comprises a distillation-condensation system and a vacuum degree control system for controlling the vacuum degree in the distillation-condensation system; the distillation-condensation system comprises, from bottom to top, a distillation section, a first-stage condensation section, a second-stage condensation section and a third-stage condensation section; the first-stage condensation section, the second-stage condensation section and the third-stage condensation section are provided with condensation temperature control devices for controlling the temperature of the condensation sections to be gradually lowered from the lower condensation section to the upper condensation section; and the distillation section is provided with a distillation temperature control device. The application also provides a production method for preparing 5N high-purity tellurium from 2N crude tellurium by using the above production device. The application has the advantages of short production cycle, short process, no reagent consumption, simple operation, good impurity separation effect, convenient sampling, high-purity products mainly concentrated in the second-stage condensation section, no secondary pollution in the sampling process and the like, and has a wide market application prospect.

The application relates to a clock-drawing test scoring method and device, computer equipment and a storage medium. The method comprises the following steps: inputting a clock-drawing image dataset into an FCOS network to identify handwritten numerals in the clock-drawing image dataset; performing circle detection on the clock-drawing image dataset by using a maximum connected domain algorithm to obtain a clock region; based on the identification result of the handwritten numerals and the detection result of the clock region, performing pointer detection on the clock-drawing image dataset by using an image processing algorithm to obtain a pointer image of the clock-drawing image dataset, and performing hour hand and minute hand classification on the pointer image by using a breadth-first algorithm; scoring the handwritten numeral identification result, the clock region detection result, the pointer image detection result and the hour hand and minute hand classification result according to a set scoring rule, and adding all the scoring results to generate a clock-drawing test scoring result. The application can avoid evaluation fluctuations and differences caused by subjectivity and bias of artificial evaluation.

The utility model provides a kind of sampling device for lubricating oil detection, belong to lubricating oil detection technical field. Including fixed plate, the one end of fixed plate is fixedly installed with sampling assembly, sampling assembly includes connecting plate, is fixed in the one end of fixed plate, the connecting plate is opened with the adjusting hole of strip shape along vertical direction;Multiple sliding blocks, slidably embedded in adjusting hole, the mounting hole of being opened in each sliding block is penetrated;Multiple rubber cap droppers, respectively fixed on corresponding sliding block, the pipe body of each rubber cap dropper passes through mounting hole, and rubber cap end is towards outside;Two clamping plates of symmetrical arrangement, slidably installed in the end of connecting plate, rubber cap dropper rubber cap end is between two clamping plates;Adjusting mechanism, including screw rod fixed in each sliding block side portion, the side wall of connecting plate is opened with the sliding hole of being communicated with adjusting hole, and the nut of screw rod passes through sliding hole one end screw connection. The utility model realizes multilevel sampling and anti-pollution design, improves lubricating oil detection effect.