1129 results about "EXTENSION TUBES" patented technology

To disclose a TBM main drive visualization lubrication device and a method of using the same.SOLUTION: A functional mechanism 1 comprises a first seal case, a second seal case, and a position limiting member. When in use, the first seal case and the second seal case can be cased outside an existing TBM drive, and furthermore, by rotating a position limiting ring, the use position of an extension tube can be moved and adjusted while supported by a connection rod, and furthermore, the extension tube is arranged to be pressed and affixed to an interior wall of the existing TBM equipment in accordance with an elastic affixing block, so that the equipment can be installed easily and stably, and furthermore, a distance increasing ring with suitable diameter is selected on the basis of the specifications of a drive gear and a ring gear inside the actual existing TBM drive.SELECTED DRAWING: Figure 1

The invention provides a dual-control underground cable intelligent water distributor which comprises an upper connector, an upper shell, a connecting body, a lower shell and a lower connector which are connected in sequence, a central pipe is nested in the upper shell, the two ends of the central pipe are in sealed connection with the upper connector and the connecting body respectively, and an adjusting sleeve is nested in the lower shell. The two ends of the adjusting sleeve are sealed with the connecting body and the lower connector respectively, and the adjusting mechanism, the electric control mechanism and the driving mechanism are arranged in a gap between the upper shell and the center pipe respectively. The dual-control underground cabled intelligent water distributor has the beneficial effects that the dual-control underground cabled intelligent water distributor has two measurement and control processes which do not influence each other, the service life of a pipe column can be effectively prolonged, the dual-control underground cabled intelligent water distributor is suitable for an existing cabled intelligent process pipe column, the cable throwing and fishing measurement and control capability is increased on the basis of an existing cabled intelligent working barrel, and the service life of the cable is prolonged. Therefore, the purposes of two control modes of cabling and measuring and adjusting are achieved, and the requirements of multi-layer-section layered water injection, accurate injection allocation and real-time measuring and adjusting are met.

The utility model provides a medical pipeline arrangement device. The medical pipeline arrangement device comprises a fixing mechanism and a connecting mechanism. The fixing mechanism comprises connecting blocks and fixing buckles, the connecting blocks are distributed at equal intervals and arranged in a strip shape, and the fixing buckles are fixedly connected to one sides of the connecting blocks; the connecting mechanism comprises a fixing plate, one side of the fixing plate is fixedly connected with a first limiting plate and a second limiting plate, a screw penetrates through one side of the first limiting plate, and one end of the screw penetrates through the connecting block; the connecting blocks are arranged to be matched with the fixing buckles to fix the extension pipes of the micropump, the extension pipes are arranged through the multiple sets of connecting blocks, the extension pipes are prevented from being wound, and medicine in the extension pipes can be conveniently identified and distinguished through the transparent identification plate matched with color paper; the screw is arranged to drive a single connecting block to move, other connecting blocks can freely slide, the distance between the connecting blocks can be conveniently adjusted according to requirements, and winding caused by too small distance between extension pipes is prevented.

The invention discloses a noise reduction method of a bionic fish scale blade centrifugal pump, which comprises the following steps that a long and short blade centrifugal pump is selected for research, and the main design parameters of the long and short blade centrifugal pump are as follows: the specific speed ns is equal to 40.79, the rated flow Qd is equal to 10.6 m < 3 > / h, the lift H is equal to 34m, and the rotating speed n is equal to 2900r / min; a computational domain three-dimensional model of the long and short vane centrifugal pump is established through Creo8.0; in order to prevent backflow of inlet and outlet sections, ensure that fluid stably flows into an impeller and ensure the accuracy of a simulation result, extension pipelines are additionally arranged at an impeller inlet and a volute outlet of the centrifugal pump, the pipe diameter of the inlet extension section is 4 times that of the outlet extension section, and the pipe diameter of the outlet extension section is 8 times that of the inlet extension section; in order to verify the accuracy of a calculation result, a centrifugal pump experiment platform is built for external characteristic experiments; the bionic fish scale pit has the advantages that the dynamic and static interference between the impeller and the volute is reduced, the pressure fluctuation in the pump is stabilized, the amplitude fluctuation of a wave number-frequency spectrum and the energy region of a low wave number region are reduced, the migration of a wave number-frequency spectrum peak ridge is reduced, the curve change is gentle, and then the noise reduction effect is achieved.

The invention relates to the technical field of water heating pipeline welding, and discloses a pipe orifice laser welding tool for butt joint of anti-leakage water heating pipelines, which comprises a laser welding table, two side plates are symmetrically distributed at the top of the laser welding table, placing cylinders are arranged on the two side plates, and pipeline bodies are arranged in the two placing cylinders; an L-shaped plate is further arranged at the top of the laser welding table, a first electric push rod is arranged at the top of the L-shaped plate, and a laser welding head is arranged at the output end of the first electric push rod. According to the pipe orifice laser welding tool for butt joint of the leakproof water heating pipelines, the problem of traditional welding position deviation is effectively solved through the calibration component. Under the action of the pushing assembly and the limiting assembly, the position of the pipeline is accurately adjusted through movement of the inner rod and compression and release of the calibration spring, and it is ensured that a connector and a laser welding head are accurately aligned. The process effectively avoids insufficient welding and welding skips, forms uniform and compact welding seams, reduces the leakage risk during operation of the water heating system, prolongs the service life of the pipeline, and reduces the later maintenance cost.

The invention discloses a grouting pipe with multiple grouting modes and capable of being flexibly adjusted and a using method, and belongs to the technical field of building construction equipment.The grouting pipe comprises an outer grouting pipe body, an inner grouting pipe body, an inner grouting pipe body A extension pipe, an inner grouting pipe body B extension pipe, an outer grouting pipe body A extension pipe and an outer grouting pipe body B extension pipe; the inner grouting pipe and the outer grouting pipe are connected through a fixing device and a rotating structure, standard grouting holes are formed in the positions, at 0 degree, 90 degrees, 180 degrees and 270 degrees, of the inner grouting pipe from top to bottom from a grouting area, and standard grouting holes are formed in the positions, at 70 degrees, 160 degrees, 250 degrees and 340 degrees, from top to bottom from the grouting area. Standard grouting holes are formed in the positions, at 0 degree, 90 degrees, 180 degrees and 270 degrees, of the outer grouting pipe from top to bottom from the grouting area. The problems that the grouting pipe is narrow in application range and grout is wasted can be solved, multiple grouting modes are achieved on one set of grouting pipe, and the grouting position and the grouting flow can be flexibly controlled.

The utility model relates to the technical field of refrigerants, and discloses an automatic refrigerant filling device which comprises a conveying pipe, the right end of the conveying pipe penetrates through and is fixedly connected with a flow meter, the right end of the flow meter penetrates through and is fixedly connected with a first electromagnetic valve, and the right end of the first electromagnetic valve penetrates through and is fixedly connected with an output pipe. The right end of the output pipe penetrates through and is fixedly connected with a storage tank, the top of the outer ring of the conveying pipe penetrates through and is fixedly connected with a second electromagnetic valve, the top of the second electromagnetic valve penetrates through and is fixedly connected with a connecting pipe, the left end of the connecting pipe penetrates through and is fixedly connected with a connector, and the left end of the connector is fixedly connected with an extension pipe. According to the device, through the extension pipe, the threaded ring, the fixing ring, the connector, the suction cup and the extrusion cover, the extension pipe is inserted into a filling port of equipment needing to be filled, then the threaded ring is rotated for threaded connection, then the suction cup slides, the suction cup is moved to the outer side of the fixing ring, and the suction cup and the port are used for sucking.

A liquid accumulator modal adjusting device comprises a connecting channel of adjacent cavities, liquid blocking protrusions are arranged on the edge of the connecting channel and used for preventing liquid from entering the connecting channel, and the space of the connecting channel is obtained for exhausting; the exhaust pipe penetrates through the partition plate, the specific form of the liquid accumulator modal adjusting device is that the partition plate and the connecting channel are formed through the holes, and the liquid blocking protrusions can adopt the form of a semicircular extension pipe or a whole-circle extension pipe according to the situation.

A device may include an elongated body comprising an opening configured to receive a receiver extension tube of a firearm. A device may include a brace body affixed distally to the elongated body and comprising a window configured to receive a clamp mount, wherein the clamp mount is configured to retain the arm brace in a fixed position on the receiver extension tube and comprises: one or more clamps comprising at least one through-hole and one or more pads, wherein the one or more pads are configured to engage with the receiver extension tube via adjustment of one or more fasteners interfacing with the at least one though-hole.

A vascular access instrument advancement device may include a housing and an extension tube extending through the housing. The extension tube may extend through the housing. The extension tube may include a first lumen and a second lumen. A blood collection pathway may extend through the first lumen. A wedge may be disposed within the housing and the second lumen of the extension tube. A pair of opposing pinch members may be configured to pinch the extension tube. The pair of opposing pinch members may be disposed within the housing proximal to the wedge and configured to move along the extension tube with the housing. An instrument may extend distally from the wedge. The instrument may be disposed within the second lumen. In response to moving the housing distally along the extension tube, the pair of opposing pinch members push the wedge distally and the instrument is advanced distally.

A dust blowing gun extension pipe capable of being bent and shaped includes a flexible inner pipe, the flexible inner pipe is sleeved with a spring assembly; an outer portion of the spring assembly is coated with a flexible coating layer, two ends of the flexible inner pipe are respectively connected to a connector assembly, and the connector assembly interacts with the flexible inner pipe to form an air channel; the connector assembly comprises a first connector and a second connector, the first connector is provided with a first extension portion, and the first extension portion is sleeved between the flexible inner pipe and the spring assembly; an end portion of the flexible inner pipe extends into the first connector, an end portion of the flexible inner pipe is provided with a protruding ring, and the first connector is internally provided with a limiting step portion.

The invention belongs to the technical field of vacuum radiators, and particularly relates to a novel vacuum radiator for a flexible circuit board, which is characterized in that the novel vacuum radiator comprises a mounting rack and a vacuum radiator main body, and the mounting rack is provided with the flexible circuit board main body; a mounting cavity with openings in the two ends is formed in the middle of the mounting frame, the vacuum radiator body is provided with two fixing pipes, the two fixing pipes are located at the two ends of the mounting cavity respectively, the outer walls of the fixing pipes are communicated with a plurality of extension pipes in the direction facing the middle of the mounting frame, and the extension pipes on the two fixing pipes are arranged in a spaced and staggered mode; through grooves are formed in the positions, corresponding to the fixed pipe and the extension pipe, of the top of the mounting frame. According to the invention, the two fixed pipes are enabled to deflect in a reciprocating manner around the axes of the fixed pipes through the driving assembly, so that local high-temperature airflow of the flexible circuit board main body is rapidly dispersed in the swinging process of the two fixed pipes and the corresponding extension pipes, and rapid cooling is realized.

The invention discloses raw material ball-milling machining equipment for ceramic production, and relates to the technical field of ball-milling machining.The raw material ball-milling machining equipment comprises a bearing frame, an extension pipe I and an extension pipe II which extend to the exterior of an outer barrel are coaxially fixed to the two ends of an inner rotating barrel correspondingly, a motor is in driving connection with a rotation driving assembly, and a center shaft is rotationally installed in the inner rotating barrel; the outer barrel is rotationally connected with the transition material collecting barrel, a plurality of arc-shaped battens are slidably installed on the side wall of the inner rotating barrel in the radial direction, and an abutting-pushing assembly used for driving the arc-shaped battens to slide in the radial direction relative to the inner rotating barrel is installed on the center shaft. According to the ceramic raw material grinding device, a shifting plate is driven to rotate through an arranged center shaft, so that a conical strip block abuts against an arc-shaped strip plate through a radial sliding column, the arc-shaped strip plate abuts against and impacts a grinding ball, the grinding ball can fully impact a ceramic raw material in an outer cylinder body by means of reverse rotation of an inner rotating cylinder and the outer cylinder body, the grinding pressure is greatly improved, and the grinding efficiency is improved. And the grinding efficiency of the ceramic raw materials is remarkably improved.

The invention relates to a one-well three-machine shield staggered large split launching construction method, which comprises the following steps of: firstly, hoisting a 1 # shield tunneling machine into a well through a crawler crane, and launching the 1 # shield tunneling machine after assembling and debugging; then, the crawler crane is transferred to the field, the second shield tunneling machine is hoisted to the well, and the second shield tunneling machine is started after assembling and debugging; and after the 1 # shield tunneling machine or the 2 # shield tunneling machine conducts tunneling for 100 rings, starting of the 3 # shield tunneling machine is conducted. According to the one-well three-machine shield staggered direction large split launching construction method, the launching requirement of multiple shield machines of the ultra-deep circular small vertical shaft is met by adopting an underground trolley stacking mode, and the problems that pipeline extension from the ground is not economical, high-altitude operation pipelines are difficult to install and fix, and the pressure of pressurized pipelines is unstable are solved.

The utility model is suitable for the technical field related to medical instruments, and provides a valve auxiliary system sheath which comprises a shell assembly and a catheter sheath tube arranged on the shell assembly. The bending adjusting handle is used for adjusting the angle of the tail end of the catheter sheathing canal, and the bending adjusting handle is connected with the shell assembly; the catheter sheath is used for being matched with the catheter sheath tube to achieve introduction of an interventional instrument or conveying of an auxiliary instrument; the flushing valve is used for conveying medicaments, and the flushing valve is communicated with the catheter sheath through an extension tube body; the catheter sheath tube, the catheter sheath, the flushing valve and other components are arranged in a matched mode, so that the dilator can be always kept in the catheter sheath tube in the original position in the process that the catheter sheath tube enters the access blood vessel of a patient, blood cannot permeate out of a product, use is convenient, and the valve positioning accuracy and the operation safety are effectively improved.

The invention belongs to the technical field of geothermal energy development and utilization, and particularly relates to efficient extraction equipment for a deep geothermal exploitation well, which comprises a plurality of water pumping devices, the plurality of water pumping devices are sequentially communicated in series through a plurality of extension pipe fittings, and the water pumping device close to a wellhead is fixedly connected with a steel wire rope on hoisting equipment; the water pumping device comprises a water pumping mechanism, a well cementation assembly and a guide mechanism, the outer wall of the water pumping mechanism is sleeved with the well cementation assembly, the well cementation assembly is used for making friction contact with the well wall so as to keep the working position of the water pumping mechanism in a well, and the guide mechanism is arranged at the bottom end of the water pumping mechanism and used for guiding the water pumping mechanism to work. And the guide mechanism is used for smoothly lowering the water pumping mechanism into the well and keeping the water pumping mechanism coaxial with the well body. It is guaranteed that the water pumping mechanism is stably fixed in a well, smoothly lowered to the bottom of the well and always coaxially positioned with the well body, and the stability of extraction operation is improved.

The invention relates to the field of silica-based adhesive detection, in particular to silica-based adhesive sealing performance detection equipment and a using method thereof, and the silica-based adhesive sealing performance detection equipment comprises a base, a placing cylinder, a lengthening cylinder and the like; the base is connected with two mounting frames; each mounting rack is fixedly connected with a mounting rod; a placing cylinder is connected between the two mounting rods in a sliding manner; and a plurality of lengthening cylinders are connected between the two mounting rods in a sliding manner. According to the invention, the placing cylinder and the lengthening cylinder are matched to simulate a hole scene, silica gel cement is filled in the hole scene, flame continuously burns from the bottom, and whether the silica gel cement filled in the hole with the current depth is burnt through by the flame and loses a sealing effect or not within detection time is judged; and meanwhile, the depth of the simulated hole is changed by removing the lengthened cylinder, and the fireproof performance of the silica gel cement filled in the holes with different depths is tested, so that the optimal filling thickness of the silica gel cement in actual use is obtained, and data support is provided for the silica gel cement in actual use, so that the optimal filling thickness of the silica gel cement in different use scenes is calculated.

The invention discloses a seabed sludge sampling device for marine geological survey, the seabed sludge sampling device comprises an extension arm, the bottom of the extension arm is provided with a collection member, the collection member comprises: a connection frame installed at the bottom of the extension arm; and the sampling piece is installed on the connecting frame and used for sludge sampling treatment, and the sampling piece comprises a protective shell fixedly connected with the connecting frame. According to the seabed sludge sampling device for the marine geological survey, the extension arm, the connecting frame and the sampling piece are transferred to a sea land sludge accumulation position by an external submersible, the shell, the driving piece, the recovery piece, the multiple groups of extension pipes and the auger are driven by the hydraulic cylinder assembly to move towards the sludge accumulation end, and the multiple groups of extension pipes are inserted into sludge by a proper depth; the motor drives the multiple sets of augers to rotate through the belt wheel assembly, the two sets of driving shafts and the multiple sets of bevel gear assemblies, and the augers are rotated to guide sludge guided into the extension pipe into the recycling box through the extension pipe and the blocking piece.

The invention discloses an intermittent occlusion balloon catheter system for treating heart failure. The system comprises a five-cavity double-balloon catheter, the five-cavity double-balloon catheter comprises a cavity tube body, a first balloon arranged in a pulmonary artery and a second balloon arranged in a superior vena cava, and the first balloon and the second balloon are both fixed to the surface of the cavity tube body; a round head is arranged at the far end of the cavity tube body, and the diameter of the round head is not larger than the outer diameter of the catheter. The near end is connected with the extension tube assembly through an injection molding head; the cavity tube body is provided with five cavity channels which are respectively communicated with the first balloon extension tube, the second balloon extension tube, the thermistor extension tube, the far-end extension tube and the near-end extension tube; the injection pump is driven by the stepping motor, and the controller adjusts the advancing and retreating motion period of the stepping motor, so that the injection pump is controlled to charge and discharge liquid to the second balloon. By intermittently blocking the superior vena cava, the heart filling pressure is reduced, and therefore heart hyperemia and volume overload are prevented.

The utility model discloses a quick butt joint flange, which belongs to the technical field of flange connection and comprises a first connecting pipeline and a second connecting pipeline, a sealing assembly is arranged on the opposite sides of the first connecting pipeline and the second connecting pipeline, and the sealing assembly comprises two sealing connecting rings. The two sealing connecting rings are specifically made of materials with certain elasticity and corrosion resistance, such as rubber, preliminary sealing is provided through the sealing connecting rings, media are prevented from leaking at the joint, and the outer diameters of the two sealing connecting rings are both sleeved with sealing rings. In the actual use process, the leakage of dangerous media is effectively prevented, the risk of accidents is reduced, the safety of personnel and equipment is guaranteed, the pressure in the pipeline is kept stable, the normal operation of the system can be guaranteed, the working efficiency and the product quality are improved, corrosion and damage are reduced, and the service life of the system is prolonged. The service lives of the pipeline, the flange and related equipment are prolonged, and the maintenance and replacement cost is reduced.

The invention discloses a low-temperature screw extruder, and belongs to the technical field of nuclear fusion projectile injection. An extension pipe, an extrusion cavity and a six-way assembly are sequentially arranged in a vacuum cylinder from top to bottom, and a servo motor drives an extrusion screw to rotate through a magnetic transmission assembly; working gas enters the vacuum cylinder through the working gas ingress pipe and is condensed into liquid under the action of the liquefier; the liquid working gas automatically flows into the extrusion cavity and is solidified in the extrusion cavity; and under the action of the extrusion screw rod, the working gas is extruded out of the conical pressing nozzle in a solid ice column form. According to the invention, the hidden danger of leakage of working gases such as deuterium and tritium caused by dynamic sealing is avoided, the ice column forming quality can be improved, and the demand quantity of liquid helium is reduced.

The invention belongs to the technical field of injection instruments, and discloses an injection device. The injection device comprises a shell, an adjusting part, a needle tube and an extension tube, the shell extends in the first direction and is hollow, an opening is formed in the peripheral wall of the shell in the first direction, a plurality of clamping grooves are formed in the inner wall of the shell in the circumferential direction of the shell, and a first through hole is formed in the first end of the shell; the adjusting part comprises a clamping part, the clamping part enters the shell through the opening and is clamped in one of the clamping grooves, and the clamping part can be clamped with different clamping grooves so as to drive the adjusting part to change the position in the first direction; the needle tube is arranged at the first end of the shell in the first direction and communicates with the interior of the shell through the first through hole. The extension tube penetrates through the needle tube and is connected with the adjusting part, and the position of the adjusting part can be changed to drive the extension tube to adjust the length of the extension tube extending out of the needle tube. Through gear adjustment of the extension tube, the extending distance of the extension tube from the needle tube is more accurate, and the safety of the subretinal injection technology is improved.

The dust collector comprises a dust collector body, an extension pipe and a locking assembly, and the dust collector body is provided with a matching surface; the extension pipe extends in the first direction, and the extension pipe is provided with a locking seat; the locking assembly is arranged on the locking seat, the locking assembly locks the matching surface in a releasable mode, and the locking assembly comprises a locking button seat; when the locking button base is under the upward acting force in the first direction, the locking assembly and the matching face are unlocked, and the extension pipe moves upwards along the first direction along with the locking base. According to the dust collector, the matching face of the dust collector body, the locking base on the extension pipe and the locking button base in the locking assembly are matched together, the direction in which a user triggers the locking button base is kept consistent with the extension pipe dismounting direction, operation of the user is facilitated, and then the use experience of the user is improved.

The invention provides a galvanized steel pipe inner wall defect quality detection device, and relates to the technical field of pipe body inner wall detection, the galvanized steel pipe inner wall defect quality detection device comprises a detection mechanism used for extending into a galvanized steel pipe for detection, and an equipment external connection mechanism used for receiving data sent back by the detection mechanism, the equipment external connection mechanism is mounted at one end of the detection mechanism, and the detection mechanism comprises a connection extension pipe, a probing part and a laser transmitting and receiving device. When the device is used, the connecting extension pipe is arranged to drive the probing part to gradually go deep into the galvanized steel pipe, and meanwhile, all the laser emitting and receiving devices synchronously emit laser to the inner wall of the galvanized steel pipe and receive the reflected laser for distance measurement; the laser transmitting and receiving device transmits received data to the operation platform through the equipment external connection mechanism to generate a spacing curve, whether the inner wall of the galvanized steel pipe has defects or not is judged through fluctuation of the spacing curve, and the effects of reducing interference and improving accuracy are achieved.

The utility model discloses an automatic oil injector which comprises a machine base (1), and a grease tank (12) used for containing grease is connected to the upper portion of the machine base (1). A control panel (6) and a power module connected with and controlled by the control panel (6) are arranged in the machine base (1). The power module comprises a base (11), an oil outlet (15) and an oil inlet (13) connected with a grease tank (12) are formed in the base (11), one-way valves are arranged on the oil inlet (13) and the oil outlet (15) respectively, an extension pipe (4) extending out of the machine base (1) is connected to the oil outlet (15), an oil cavity (14) communicated with the oil inlet (13) and the oil outlet (15) is formed in the base (11), and an oil pump used for pumping oil from the oil inlet (13) and pumping oil from the oil outlet (15) is further arranged in the base (11). The reciprocating power mechanism is used for feeding oil out of an oil outlet (15); a control terminal (5) connected with the control panel (6) is arranged on the surface of the machine base (1). The device is simple to use and operate, and can accurately control the oil injection quantity.

The rail welding system comprises a rail welding vehicle and a rail welding machine, the rail welding vehicle is provided with a rail welding operation supply unit, the rail welding operation supply unit communicates with the rail welding machine through an extension pipeline, and the rail welding vehicle is provided with a crane; the rail welding machine further comprises a machine body support which is provided with a rail welding machine placing position. The method has the beneficial effects that a GPW-1200 type air pressure rail welding machine can be adopted to implement welding operation on a steel rail line on a ramp section with the height being 130 mm or above and the height being 25% o or below of a railway line, thermit welding is comprehensively canceled, and the method has great advantages in the aspects of improving the rail replacement overhaul construction quality and ensuring the travel safety of passengers.

The utility model discloses a hoisting clamp for long pipe transportation, and belongs to the technical field of pipeline transportation. The clamp comprises a pair of clamping arms, and each clamping arm comprises an adjusting groove and a supporting pipe bracket; the connecting rod comprises a fixing rod, the two ends of the fixing rod are hinged to the clamping arms through bolts, the connecting rod further comprises an adjusting rod, and the adjusting rod is hinged to the adjusting grooves in the two sides in a sliding mode; the adjusting screw rod is arranged between the fixed rod and the adjusting rod, and a fastener is arranged outside the adjusting screw rod in a surrounding manner; and a long pipeline. According to the hoisting clamp for long pipe transportation, the clamping arms on the two sides are connected through the connecting rods, the arm unfolding angles of the clamping arms are controlled through the adjusting screw rods, the supporting pipe bracket and the jacking bracket jointly wrap a pipeline and are locked through the fastener, the truss lifting hook penetrates through the lifting hole to conduct hoisting, the clamping arms can be accurately adjusted according to the diameter of the pipeline, it is ensured that the pipeline is attached to the supporting component, and therefore the hoisting efficiency is improved. And the supporting pipe bracket and the jacking bracket adopt cambered surface design, so that the pipeline is uniformly supported, and the service life of the pipeline is prolonged.

The invention discloses an anti-pollution sampling device for animal epidemic prevention sampling inspection, and relates to the technical field of animal sampling, the anti-pollution sampling device comprises an extension tube, a storage cover, a storage support, a hand placing hole and a third rack, the right side of the extension tube is provided with the storage cover, the storage support, the hand placing hole and a trigger, and the side surface of the storage cover is provided with a first spring and a limiting bolt; a pull wire hole is formed in the side face of the trigger, through cooperation of the storage cover, the limiting plug pin and the first spring, external pollutants are effectively prevented from entering the storage support, and cleanliness of collection equipment is guaranteed; the first protective cover and the second protective cover are automatically opened and closed before and after sampling, samples are isolated from the outside, and the samples are prevented from being polluted in the collecting and transferring processes; the sampling jacket can grab a sample, so that the sample is prevented from falling off and being polluted, the accuracy and reliability of the sample are greatly improved, and more effective data support is provided for animal epidemic prevention sampling inspection work.

The invention discloses an intelligent dust fall device for coal mining, and relates to the technical field of mine mining dust fall, the intelligent dust fall device comprises a belt wheel base, a water storage tank and a fog gun main body are arranged on the belt wheel base, a fan is fixedly mounted in the fog gun main body, and the intelligent dust fall device further comprises an adjustable atomization assembly and an air inlet detection assembly; the adjustable atomization assembly is arranged at the end of the fog gun body. The air inlet detection assembly comprises a stand column vertically and fixedly installed on the belt wheel base, a supporting ring is fixedly installed at the top end of the stand column, an extension pipe fixedly communicates with the supporting ring, the extension pipe is sleeved with a sleeve, a spiral groove is formed in the peripheral wall of the extension pipe, and the spiral groove is communicated with the supporting ring. A spiral guide convex rib with an integrated structure is arranged on the inner circumferential wall of the sleeve; the reliability and representativeness of the detection result of the air inlet detection assembly can be improved, and meanwhile, the rotating speed of the draught fan and the power of the follow-up infusion pump can be adjusted in a self-adaptive mode according to the air quality, so that the purposes of energy conservation and emission reduction are achieved.

The invention relates to a processing device (1) for processing of liquid sample contained in a multiwell carrier (2), wherein the processing device comprises a housing (3) with a bottom part (4) and a lid part (5), wherein the bottom part and the lid part delimit an inner space of the housing, and a connection part (6) for fluidically connecting the processing device to a processing unit (7) wherein the connection part is fluidically connected to the inner space, wherein the housing has several hollow extension tubes (9a, 9b), which extend from the bottom part and which are fluidically connected to the inner space. The processing device comprises at least one valve device (10a, 10b) that is at least partly arranged in the inner space of the housing and is moveable between an open position in which the connection part is fluidically connected with an outlet opening of an extension tube and a closed position in which the valve device fluidically disconnects the connection part from the outlet opening of the extension tube.