713 results about "Tube diameter" patented technology

The invention discloses a diaphragm valve flow test system and method, and the system comprises a first test assembly and a second test assembly, and a first pressure measurement port of the first test assembly and a second pressure measurement port of the second test assembly are respectively communicated with a to-be-tested valve; a first test pipeline communicated with the first test assembly is provided with a circulation path in a first direction; a second testing pipeline communicated with the second testing assembly is provided with a circulation path in the first direction. The upstream and downstream pressure values of the to-be-tested valve can be accurately detected through the first pressure gauge and the second pressure gauge, and the gas flow value is detected through the flow meter and substituted into a calculation formula to obtain an accurate flow coefficient value; the upstream first testing assembly and the downstream pressure measuring device are arranged at a specific distance according to the pipe diameter of the communicating pipeline, and the accuracy of the pressure value can be effectively ensured through the limitation of the pipe diameter and the distance; the actual temperature value of the fluid in the test system pipeline is monitored through the thermometer, and the influence of the temperature on the test result is effectively reduced.

The utility model relates to the technical field of pipeline processing, in particular to a rotary friction welding device for a large-pipe-diameter pipeline, which comprises a placing frame, the pipeline is placed on the placing frame, a pipeline clamping mechanism is installed at the front end of the placing frame to clamp the pipeline and align to a joint, and the joint is clamped in a joint profiling welding tool and is driven by a welding standard machine to rotate and feed. A tail plate is arranged at the rear end of the placing frame, the tail plate moves at different positions of the track to be connected with the pipeline in a clamping mode, pipeline products of different lengths are welded, a connector profiling tool opposite to the connector profiling welding tool is arranged on the tail plate, and the connector profiling tool is matched with the connector profiling welding tool to adjust the relative angle of connectors welded to the two ends of the pipeline. The situation that the installation condition of a client cannot be met due to too large relative angle deviation is prevented; the welding device is used for solving the problem of welding of the pipeline and the connector, welding of the pipeline and the connector can be rapidly achieved at low cost, and the installation requirement and the market requirement of the energy storage pipeline are met.

The invention provides a clamp suitable for various pipe diameters and a clamping method. The clamp comprises a first base with a guide groove, a clamping piece arranged on the first base in a sliding mode, an asynchronous adjusting device, a synchronous adjusting device and a clutch device. Wherein the asynchronous adjusting device and the active adjusting device can adjust the position of the clamping piece, so that the clamp can adapt to tubular workpieces with different pipe diameters; besides, the engagement or disengagement state of the driving gear and the driven gear of the synchronous adjusting device can be switched through the clutch device, so that different clamping pieces can be asynchronously adjusted according to the section shape of the tubular workpiece to be clamped, and the clamp can adapt to the section shape error of the tubular workpiece.

The utility model relates to the field of bathroom facilities, in particular to a pedestal pan which comprises a barrel body (1) and a pipeline (2) connected with the barrel body. The barrel body comprises a dirt falling opening (12) formed in the bottom of the barrel body, and a spraying opening (15) is formed below the dirt falling opening. The pipeline comprises a pipeline opening (21), an ascending section (22), a descending section (23) and a pollution discharge section (24), wherein the ascending section (22), the descending section (23) and the pollution discharge section (24) are sequentially connected end to end. The connecting position of the ascending section and the descending section is the highest point of the ascending section and the descending section. The direction of the jet orifice is opposite to the pipeline orifice. And the pipe diameters of the ascending section and the descending section are gradually reduced along the water flow direction. The ratio of the sectional area of the pipeline opening to the area of a first section (221) between the ascending section and the descending section is 1: 0.52-1: 0.72, and the ratio of the sectional area of the pipeline opening to the area of a second section (231) between the descending section and the pollution discharge section is 1: 0.53-1: 0.63. According to the pipeline with the ratio, more flushing dirt can be quickly discharged, the flushing capacity of the pedestal pan is improved, and blockage can be reduced due to the increased pipe diameter.

The invention discloses a rapid assembly welding construction method for boiler steam blowpipes. The method comprises the steps that small-pipe-diameter and large-pipe-diameter welding auxiliary structures are manufactured, pipelines are hoisted to the installation position for butt joint, the corresponding welding auxiliary structures are selected according to the pipe diameters so that pipe openings of the pipelines can be aligned and preliminarily welded and positioned, and final butt joint welding is completed after the auxiliary structures are dismantled. An auxiliary mounting and welding structure of the automatic screwing device is further manufactured, and the device enables a screwing driving mechanism to be in butt joint with a connecting bolt, a nut or an adjusting bolt by adjusting the positions of all parts and drives the screwing driving mechanism to rotate. According to the assembly welding device, the technical effects of quickly and accurately completing assembly welding of the boiler steam blowpipes and improving the construction efficiency and quality are achieved.

This utility model discloses a ball mill that allows material feeding and discharging without stopping the machine. It includes a drum driven by a motor and its reducer, with a main feed inlet on the side of the drum and a control valve thereon; at least one auxiliary feed inlet on the end face of the drum; a fixed outer tube; and an inner tube installed at the center of the drum's end face and rotating synchronously with the drum. The inner tube contains a centrally located main feed channel and peripheral auxiliary feed channels arranged side-by-side. The inner end of the main feed channel is connected to the drum's inner cavity via a main feed guide pipe and a main feed inlet, while the outer end of the main feed channel is connected to the outer tube along the inner tube's axial direction via a first rotary joint. The inner end of the auxiliary feed channels is connected to the drum's inner cavity via an auxiliary feed guide pipe and an auxiliary feed inlet, while the outer end of the auxiliary feed channels is connected to an auxiliary feed inlet / outlet pipe along the inner tube's radial direction via a second rotary joint. This design ensures smooth feeding and discharging of both main and auxiliary materials in the drum without stopping the machine; prevents material leakage during high-speed drum rotation; and improves the ball mill's applicability and production efficiency.

The invention discloses a fastening device for water conservancy and hydropower construction, relates to the field of water conservancy and hydropower construction auxiliary equipment, and aims to solve the problems of low pipeline butt joint precision, difficulty in parallelism control and poor distance adjusting efficiency in the existing two-group double-pipe parallel construction. The device comprises a bottom plate, a mounting frame, a sliding device, an adjusting device, a clamping device and a control panel, and buffer springs are arranged in supporting legs of the mounting frame. The adjusting device drives the clamping assembly through the bidirectional threaded rod, and coaxiality control over segmented splicing of the long pipeline is achieved. The sliding device is matched with an electric push rod through a sliding rail, and the parallel distance between the two spliced long pipes is adjusted in an electric control mode through a control panel. The device adapts to various common pipe diameters, can be assembled and disassembled by a single person, is stable in fixation, can resist construction vibration and pressure, conforms to related specifications, remarkably improves the construction efficiency, reduces the equipment cost, and is suitable for cooling pipes, water supply pipes, grouting pipes and other scenes.

The application belongs to the technical field of aerospace, weapon equipment buffering and energy absorption protection, and particularly relates to a spring-like superstructure capable of repeated and efficient buffering and energy absorption, which is formed by spirally winding hollow tubes or filling tubes with circular, square, hexagonal, concave negative Poisson's ratio, self-locking or other special cross-sectional shapes; by adjusting the distribution forms of geometric parameters such as the spiral angle, polar angle, number of turns, pitch, winding diameter, tube diameter and wall thickness of the structure, the mechanical properties of the structure can be regulated and controlled. Compared with conventional foam, honeycomb and other traditional energy absorption materials, the application can achieve the purpose of efficient buffering and energy absorption, and can achieve the effect of being reusable.

The invention belongs to the technical field of spiral welded pipe coping, and particularly discloses a coping device and method for spiral welded pipe machining, and the coping device comprises a rack, a pipe end clamping mechanism and a shape follow-up self-adaptive grinding unit. By means of the integrated self-adaptive adjusting mechanism and the multi-dimensional adjusting assembly, spiral welding pipes with different pipe diameters can be rapidly clamped, and the space postures of the grinding wheels can be accurately aligned; particularly, a flexible avoiding mechanism supported by a spring is utilized, so that the guide wheel and the grinding wheel synchronously float when encountering a high welding seam, the clamping stagnation damage of equipment and the bending of a grinding wheel shaft are effectively avoided, the heat influence caused by severe friction is obviously reduced, the metallographic structure change of the welding seam and base metal is prevented, the corrosion resistance of a welded pipe is guaranteed, and the service life of the welded pipe is prolonged. And in cooperation with automatic seam searching of the guide wheel, automatic and high-quality grinding of all welding seams is achieved.

The invention relates to a plastic pipe cutting guide device and a using method. The plastic pipe cutting guide device comprises an operation table, a first pipe diameter positioning module and a second pipe diameter positioning module which are located at the two ends of the operation table correspondingly and used for positioning a plastic pipe, and a plurality of sets of first annular frames and second annular frames are oppositely arranged on the operation table and surround the plastic pipe diameter in an interactive mode; the arc-shaped groove is formed in the middle of the operation table, the air pressure cushion is arranged in the arc-shaped groove to enhance the positioning stability, the cutting arm assembly composed of the linear bearing guide rail is integrated, a cutting tool (a saw blade or a cutting knife) is forcibly restrained to move along a preset absolutely straight path, and the problems that due to manual shaking, a notch is inclined, and burrs are too many are fundamentally solved. The section of the notch is smooth and flat and is always perpendicular to the axis of the pipe, secondary finishing is not needed, and the sealing performance and reliability of follow-up pipe fitting connection are greatly improved.

The invention belongs to the technical field of municipal pipeline detection, and provides a municipal pipeline detection method and system based on nondestructive detection and artificial intelligence, and the method comprises the steps: carrying out the AI reconstruction through the pipe diameter point cloud data of different pipe sections, generating a continuous profile map, and recognizing the pipe sections with reduced pipe diameters; generating a slope curve by using the slope detection data to identify a slope change pipe section; calculating the overlapping mileage proportion of the pipe diameter reduction pipe section and the gradient change pipe section, performing linear fitting on the gradient curve of the overlapping pipe section, and judging the pipe diameter misjudgment risk pipe section according to the decision coefficient; determining a coupling relationship between gradient change and pipe diameter reduction based on historical data of pipe sections of the same type, establishing a coupling model, and judging whether the actual pipe diameter reduction amount and the theoretical pipe diameter reduction amount of the pipe section with the pipe diameter misjudgment risk conform to the coupling relationship or not; if not, the diameter of the oblique section is converted into the real inner diameter according to the gradient inclination angle by combining the RANSAC algorithm, the real inner diameter is compared with the designed inner diameter again to determine whether the pipe diameter is reduced or not, and it is ensured that the pipe diameter detection result is accurate.

The invention discloses a TC11 titanium alloy thick-wall pipe diameter forging process parameter optimization method, which relates to the technical field of metal plastic forming process optimization, and comprises the following steps: clearly defining a structure defect problem caused by non-uniform deformation energy in diameter forging of a specific pipe blank and an optimization target; constructing a simulation model to calculate forming sizes and internal deformation energy distribution under different process parameters; training a neural network agent model embedded with a deformation energy uniformity optimization target; using the model to drive a multi-objective optimization algorithm, and automatically searching an optimal process parameter combination; and selecting and outputting a final optimal process parameter from an optimization result. According to the method, the quantitative index reflecting the deformation energy distribution uniformity is embedded into the process optimization model, so that the internal deformation energy distribution of the material can be collaboratively optimized while the macroscopic size is optimized, and the problem that the recessive factor which affects the final structure performance of the component is difficult to effectively evaluate and actively regulate and control in the process design stage in the existing method is solved.

The invention discloses a casing centralizer with a pipe diameter adjusting function, and relates to the technical field of petroleum and natural gas drilling engineering equipment, the casing centralizer comprises two fixing rings which are symmetrically distributed left and right, the outer surface of each fixing ring is provided with a plurality of fixing seats at equal intervals in the circumferential direction, and each fixing seat is rotatably connected with a connecting plate; an elastic plate is arranged between the left connecting plate and the right connecting plate in the horizontal direction, and the two ends of each elastic plate are rotationally connected with the two adjacent connecting plates respectively. By rotating the adjusting bolt, the driving screw rod and the fixing pipe are in threaded transmission, and the distance between the two fixing rings is accurately controlled, so that the annular supporting frame formed by the connecting plate and the elastic plate generates controllable radial deformation; stepless adjustment of the supporting outer diameter is achieved, different borehole sizes are accurately matched, the problem that a centralizer with a fixed size is insufficient in supporting or difficult to descend is solved, it is ensured that a casing pipe is efficiently centered, and a foundation is laid for forming a uniform cement sheath.

The invention belongs to the technical field of medical instruments, and particularly relates to a drainage tube fixing device for head postoperative care, which comprises two groups of headstocks oppositely arranged, an elastic connecting band is connected to the rear sides of the two groups of headstocks, fixing bands are connected to the front sides of the two groups of headstocks, and an arc-shaped frame is connected to the tops of the two groups of headstocks. A rail groove is formed in the arc-shaped frame, a sliding block is arranged in the rail groove in a sliding mode, a connecting block is connected to the front side of the sliding block, a pipe body fixing mechanism is arranged on the connecting block, and the pipe body fixing mechanism comprises a surrounding assembly and an inflation pressing assembly; the hoop embracing assembly containing the elastic expansion strip is combined with the air inflation pressing assembly composed of the air containing cylinder and the piston plate, the piston plate is pushed through the threaded rod to adjust air pressure so as to achieve tightness control over the elastic expansion strip, drainage tubes with different tube diameters can be firmly fixed, and it is avoided that a hard clamp damages the tube wall or compresses a tube cavity.

The utility model discloses a pipe clamp with a self-adaptive pipe diameter, which belongs to the field of pipe clamps, and comprises a support leg, a plurality of pipe clamps and a plurality of pipe clamps, and the self-adaptive pipe clamp component is used for clamping the to-be-clamped pipeline. According to the pipe clamp with the self-adaptive pipe diameter, the self-adaptive pipe clamp components are arranged, firstly, a pipeline to be clamped penetrates through the two sets of self-adaptive pipe clamp components, when the pipeline penetrates into the self-adaptive pipe clamp components, the two sets of pipe clamp molds can be extruded to be away from each other, the two sets of sliding rods move outwards, and springs are compressed, so that the pipeline to be clamped is clamped. The self-adaptive pipe clamp component can be used for self-adaptively clamping pipelines with different calibers, and the pipe clamp mold can be quickly replaced in a sliding clamping manner through the embedded plate and the upper clamping plate, so that the overall universality is improved, and the adjusting component is arranged, so that the pipe clamp mold can be quickly replaced. The distance between the two sets of self-adaptive pipe clamp components can be adjusted, and pipelines with different lengths can be clamped and used.

This invention discloses a breath training bottle for vocal music teaching with variable pipe diameter, belonging to the field of vocal training bottle technology. Its key technical features include a water-storage bottle body, with a support leg fixed to the lower side of one side of the water-storage bottle body. A bottle body tube is connected to the upper side of one side of the bottle body tube, with a cap attached to the upper end of the bottle body tube. A fixed tube seat is installed on one side of the upper end of the cap, and an air blowing tube is installed inside the fixed tube seat. A pipe diameter adjustment component is installed at the lower end of the air blowing tube. The pipe diameter adjustment component includes a pipe diameter adjustment end threaded onto the lower end of the air blowing tube, with connecting arms symmetrically fixed at the bottom end of the pipe diameter adjustment end. Through the cooperation of the threaded pipe diameter adjustment end and the frustum-shaped adjustment plug, the depth of the plug entering the air blowing tube can be flexibly adjusted, achieving continuous adjustment of the air outlet pipe diameter. This solves the core defect of poor adaptability in traditional fixed-diameter vocal training bottles, covering the needs of multiple scenarios such as vocal music teaching, amateur practice, and vocal cord rehabilitation.

The invention provides a double-layer packer for coal mine hydraulic fracturing and a testing method thereof, and the double-layer packer comprises a central inner pipe which is through in the axial direction and is provided with at least one water through hole which is through in the radial direction of the central inner pipe; the central inner pipe is sleeved with the first elastic cylinder, a first expansion cavity is formed in the outer side of the central inner pipe, and the water through hole is located in the first expansion cavity; and the second elastic cylinder is arranged on the center inner pipe in a sleeving mode, a second expansion cavity is formed in the outer side of the center inner pipe, the first expansion cavity is located in the second expansion cavity, and a metal net is arranged on a cylinder body of the second elastic cylinder. According to the double-layer packer for coal mine hydraulic fracturing and the testing method of the double-layer packer, the success rate of hole sealing and pressure maintaining can be guaranteed, the construction efficiency is improved, and the fracturing engineering material cost is effectively reduced.

1. The name of the design product: connecting piece (rotation). 2. The use of the design product: for the assembly of guardrail segments, the internal diameter of the design can be adjusted according to the pipe diameter of the national standard profile to adapt to the installation of different pipe diameters. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The application discloses a stretching device for a heating tube, which comprises a first clamp, a second clamp, a material receiving clamp, a first axial positioning mechanism and a second axial positioning mechanism. The material receiving clamp is used for clamping the heating tube, the diameter of the pipe clamping groove of the material receiving clamp is larger than the diameter of the heating tube, and the axial position is not limited. The first axial positioning mechanism and the second axial positioning mechanism are respectively located at the two ends of the heating tube, and the first axial positioning mechanism and the second axial positioning mechanism can relatively move along the axial direction of the heating tube. The first clamp and the second clamp are respectively used for clamping the two ends of the heating tube, and the first clamp and the second clamp can relatively move along the axial direction of the heating tube. Therefore, the device is used for axially limiting and straightening the heating tube by the axial positioning mechanism before stretching, and is combined with the real-time length measurement of the electronic ruler and the feedback of the positioning signal, so that the timing linkage of "first positioning and straightening and then clamping and stretching" is realized, and the stretching precision is obviously improved.

The invention relates to the technical field of liquid level detection, in particular to a medical liquid level sensor which comprises a reducer pipe fixedly connected and communicated with a liquid conveying pipeline, the reducer pipe is provided with a plurality of parts with different pipe diameters from top to bottom, and the pipe diameters of the reducer pipe are sequentially reduced from top to bottom. A sensor for detecting the liquid level is arranged at each part with different pipe diameters of the reducer pipe, so that quick response or precise detection of the liquid level can be carried out by utilizing different capacitance changes caused by liquid level changes in different pipe diameters.

The utility model provides a kind of composite pipeline support structure, including support piece, support piece can be deformed along the length direction parallel to it, support piece includes support outer plate, connecting plate and support inner plate, the number of support inner plate is multiple, and it is interval setting along the length direction of support outer plate, and form the accommodation space for installing cladding between support outer plate, avoid the interference with clamp, so that cladding can realize larger area cladding on pipeline;Connecting plate is located the part between two support inner plates and is provided with notch;Support piece has first state and second state, in first state, support piece is flat type;In second state, the head of support outer plate is connected, to make support piece form closed structure compatible with different pipe diameter, shape pipeline;Limitation groove is set on support outer plate, for installing clamp, to realize the conversion of support piece from first state to second state and fixed closed structure, improve adaptability, flexibility and universality.

The invention provides a portable welding device for construction of a marine ranch breeding platform, belongs to the technical field of marine ranch breeding platforms, and solves the technical problem of rapid adaptation of clamps for steel pipes with different pipe diameters of breeding components. A portable welding device for a marine ranch breeding platform comprises a movable table and a separation frame, the two ends of the top of the separation frame are each fixedly connected with two supporting frames, the tops of the two supporting frames on the same side are each fixedly connected with the same rectangular frame, and a first lead screw is rotationally connected between the two ends of the interior of each rectangular frame; and each first lead screw is in threaded connection with a threaded connection block. According to the steel pipe welding device, steel pipes of different specifications can be fixed and adjusted, the universality and adaptability of the device are improved, the welding requirements of the steel pipes of different sizes in a marine ranch breeding platform can be met, shaking and deviation of the steel pipes in the welding process are reduced, and therefore the quality of welding joints is ensured; and the welding precision and reliability are improved.

The utility model discloses a kind of connector structures suitable for DN110~1200 composite pipe, specifically is: in the end of two sections of composite pipe injection molding one connector with stepped shape outer diameter, when two composite pipes are connected, the big head of two connectors is attached;Flange connection or hot melt butt joint connection is used at the step of two connectors;Several holes are provided on the composite pipe at the connector, and the hole is the tensile column of connector.The utility model is suitable for pipe diameter DN110-DN1200 of water supply and drainage, chemical pipeline etc., satisfies 10.0MPa high pressure, 6.4MPa medium pressure, 1.6MPa low pressure demand.

The application discloses a pipeline radiation flaw detection mobile support, relates to the field of pipeline flaw detection, and comprises a support body moving in the pipeline, the outer surface of the support body is provided with a opening mechanism for supporting the support, and the two sides of the support body are provided with auxiliary mechanisms for controlling the opening and closing degree of the supporting rod. The application utilizes external force (such as manual operation) to make the supporting rod rotate around the rotating connection point of the supporting rod and the sliding groove one, the auxiliary wheel moves outward, thereby supporting the support body, the position of the moving column can be fixed by inserting the plug pin in the insertion hole at different positions, the rotating angle of the supporting rod is fixed, the opening degree of the support is adjusted and fixed, different pipe diameters can be adapted, a more stable structure is formed by the baffle, the supporting rod and the support body, the overall rigidity of the support is enhanced, the support is less likely to be deformed when bearing external force, and the supporting capacity and stability of the support in the pipeline are improved.

This utility model discloses a rubber hose cutting device, relating to the field of rubber hose processing technology. The utility model includes: an operating table, sleeper strips, a lifting component, a lower pressure roller, and an electric lifting rod; support columns are fixedly connected to the four corners of the lower surface of the operating table. This utility model ensures stable conveying of the rubber hose through the operating table, sleeper strips, and conveying rollers. The lifting component and the lower pressure roller form an adjustable clamping mechanism, achieving synchronous lifting and lowering via a hydraulic rod, adapting to the fixing requirements of different pipe diameters. The electric lifting rod drives the cutting wheel for automated cutting, guide rollers guide the pipe positioning, and the cutting groove reduces cutting resistance and prevents debris from splashing. A buffer mechanism consisting of an insertion rod and a spring, combined with a sliding rod, enables the vertical lifting and lowering of the lower pressure roller, avoiding damage to the pipe during the clamping process. The cutting debris is guided through a slide rail into a waste storage box for centralized processing, improving operational convenience. The overall structure, through a multi-stage linkage design, balances cutting accuracy and safety, significantly improving processing efficiency.

The utility model discloses pipeline transferring and mounting equipment which is characterized in that after a pipeline is horizontally placed, the pipeline is connected with the pipeline through a hoisting piece, and then vertical acting force is applied to a force application piece, so that the force application piece vertically moves downwards relative to a traveling piece, and the hoisting piece is driven to vertically move upwards relative to the traveling piece under the transmission of a main body component; therefore, the pipeline is hoisted by utilizing the lever principle, and the pipeline can be locally adjusted when the pipeline is mounted; after the pipeline is hoisted, the acting force in the horizontal direction is applied to the force application part, under transmission of the main body component, the movable end of the advancing part is driven to rotate, then the pipeline transferring and mounting equipment is moved, and therefore the pipeline can be transferred; according to the scheme, the advancing part, the main body component, the hoisting part and the force application part are cooperatively matched, so that hoisting and transferring of the pipeline are achieved, the device is suitable for small-range transferring and mounting of small-diameter pipelines, the construction efficiency of municipal pipeline engineering is further improved, practicability is high, and the device is suitable for wide application and popularization.

The utility model relates to helical pipe chamfering technical field discloses a helical pipe chamfering equipment, including the bench, both sides of bench top are all provided with chamfering device, the top of bench is provided with the support base plate, the top of support base plate is connected with fixed assembly, the fixed assembly includes the placement board connected in the top of support base plate, the top of support base plate is connected with fixed plate, the top of support base plate is provided with the compression plate, the surface sliding connection of fixed plate has the connecting plate. In the utility model, through the cooperation of fixed assembly and control assembly structure, the electric push rod drives the control board to exert the pressure on the compression plate, makes the compression plate to need chamfering helical pipe and fix tightly on the placement board then enable chamfering device to work, the helical pipe of different pipe diameters can be placed between the compression plate and the placement board through its structure, realizes the chamfering effect of different pipe diameters helical pipe being fixed tightly.

The utility model relates to detection component technical field, and disclose water quality detection assembly suitable for small pipe diameter, including, covering plate, diameter is greater than pipe diameter diameter, surface middle part is concave and is equipped with recess, the recess is equipped with clamp, water suction pipe, through covering plate is located in pipe diameter, wherein water suction pipe includes hard pipe section and hose section, the clamp clamps the both sides of hose section, the hose section surface is equipped with scale line, water extractor, water inlet and hose section far from hard pipe section one end connection, winding shaft, locate in water extractor and covering plate middle part, be used for winding hose section, water suction shaft, detachable be equipped with hard pipe section far from hose section one end, protection part, the outer surface is V -shaped, detachable be equipped with water suction shaft. The device has portability, operability, anti -clogging performance and adaptability, especially suitable for water quality detection demand under small pipe diameter environment, can improve sampling efficiency and detection accuracy significantly, reduce operation difficulty and maintenance cost.

The utility model relates to the technical field of bridge construction, and discloses bridge hanging pipe installation equipment which comprises a bridge body, and an installation frame is detachably connected to the outer wall of the bridge body. The bridge hanging pipe mounting equipment is provided with a limiting groove, a bearing, a positive and negative threaded rod, a fixed handle, a movable block, clamping blocks, a fixed bolt and a rubber block, during mounting, a constructor can rotate the fixed handle to enable the two clamping blocks to synchronously move in the same direction or in the opposite directions, and rapid clamping and loosening of a pipeline are achieved; the friction force between the clamping block and the pipeline can be increased, the pipeline is prevented from sliding and shifting in the installation and use processes, the buffering protection effect can be achieved, the situation that the clamping block damages the surface of the pipeline is avoided, installation operation is easy, the installation process is simplified, the construction efficiency is improved, and when pipelines with different pipe diameters are installed, the clamping block can be detached, and the installation efficiency is improved. And the clamping blocks with corresponding sizes are replaced according to the pipe diameter of the pipeline, so that the universality of the equipment is enhanced.

The utility model discloses an accurate cutting device for plastic pipes, which relates to the technical field of plastic pipe processing, and comprises a workbench and a reverse screw, the front side of the workbench is provided with a first chute, and the side end face of the workbench is in bolted connection with a first motor; and a reverse screw rod is rotationally connected to the output end of the first motor and located in the middle of the first sliding groove. According to the precise cutting device for the plastic pipe, a first motor drives a reverse screw to rotate, so that a first sliding block slides in a first sliding groove, a fixing rod and a fixing clamping plate are driven to move, the fixing position can be flexibly adjusted to adapt to pipes of different lengths, and a supporting base plate on the fixing rod can reduce pipe abrasion; the first electric push rod pushes the movable clamping plate to be matched with the fixed clamping plate, friction force is increased through a rubber pad on the inner side of the fixed clamping plate, pipes with different pipe diameters can be stably clamped, displacement of the pipes during cutting is avoided, reliable guarantee is provided for precise cutting, and therefore the cutting precision is improved, and the cutting machining quality of the plastic pipes is improved.