1028 results about "Metal hose" patented technology

The invention relates to a device and method for improving the purity of LF refined molten steel, and belongs to the technical field of refining processes in the metallurgical industry. According to the technical scheme, the device comprises a steel ladle (6), an argon metal hose (8), a slit type air brick (9), an argon top lance (11) and an argon pipeline (12), the argon top lance (11) is arranged above the steel ladle (6), and the argon top lance (11) is connected with the argon pipeline (12); two slit type air bricks (9) are arranged at the ladle bottom of the steel ladle (6), brick core slits of the two slit type air bricks (9) are respectively connected with the argon metal hose (8), and the argon top lance (11) is located between the two slit type air bricks (9); and a spray head of the argon top lance (11) adopts a four-hole argon spray head. The method has the beneficial effects that the main body flowing direction of the molten steel in the steel ladle can be changed, collision polymerization and floating of the inclusions are facilitated, and therefore the inclusions in the molten steel can be efficiently removed in the steel ladle refining process.

The utility model discloses an automatic metal hose grabbing and cutting device which comprises a workbench, a hose guide seat, a lifting mechanism and a grabbing mechanism, the lifting mechanism and the grabbing mechanism are both arranged on the surface of the workbench, the lifting mechanism comprises a lifting support, a lifting motor and a lifting plate, the lifting motor is fixed at the top of the lifting support, and the lifting plate is fixed at the bottom of the lifting support. The output end of the lifting motor penetrates through the top of the lifting support, extends downwards and is connected with a lifting plate, guide rods are arranged at the positions, located on the two sides of the lifting motor, of the top of the lifting support, the lifting plate is arranged on the guide rods in a sliding mode, and the bottom of the lifting plate is connected with a hose cutter. A tool apron is arranged on the portion, below the hose cutter, of the workbench, the grabbing mechanism comprises an X-direction driving device and a first Y-direction driving device, and the first Y-direction driving device is connected with a first pneumatic clamping finger. According to the scheme, the metal hose can be automatically grabbed to the cutting position through the grabbing mechanism, and manual operation is not needed.

The invention relates to the field of metal hose performance detection, in particular to a metal hose swing test device. A fixing assembly; the power swinging assembly is connected with the first fixing seat and used for enabling the first fixing seat to move relative to the fixing assembly; one end of the test hose is detachably mounted on the plane of the first fixing seat, and the other end of the test hose is detachably mounted on the plane of the fixing assembly; the axes of the two ends of the test hose do not coincide, so that the test hose is located between the first fixing base and the fixing assembly in a bent state. As the two ends of the test hose are detachably mounted on the first fixing seat and the fixing assembly which can move and be adjusted relatively respectively, and an adjustable relative relation exists between the first fixing seat and the fixing assembly, the mounting positions of the upper joint and the lower joint of the metal hose can be adjusted very conveniently in the actual test process, and the test efficiency is improved. And important parameters such as the joint relative to the swinging center position.

The invention discloses a composite vacuum metal hose, and relates to the technical field of vacuum metal hoses. The composite vacuum metal hose comprises an outer-layer corrugated pipe, wherein the two ends of the outer-layer corrugated pipe are connected with outer-layer connecting pipes; the first sliding sleeve and the second sliding sleeve can dynamically adjust the pressure borne by the inner-layer corrugated pipe when a fluid medium passes through the inner-layer corrugated pipe, so that the inner-layer corrugated pipe is prevented from being excessively stretched and extruded, and the resistance of the fluid medium passing through the inner-layer corrugated pipe is further reduced; a fluid medium smoothly enters the inner-layer corrugated pipe, the impact on the inner-layer corrugated pipe is reduced, the adjusting area can automatically and adaptively change according to the pressure of the fluid medium to weaken the pressure brought by the fluid medium entering the inner-layer corrugated pipe, the impact on the inner-layer corrugated pipe by the fluid medium is reduced, meanwhile, the resistance of the fluid medium is reduced, and the service life of the inner-layer corrugated pipe is prolonged. The speed of the fluid medium penetrating through the inner-layer corrugated pipe is increased, and the service life is prolonged.

The invention discloses a metal hose quick-plug connector, which relates to the technical field of pipeline connection, and comprises a male connector and a female connector, at least three clamping pins which are arranged in a circumferential array around the male connector are fixed outside the male connector, a clamping ring which is rotatably clamped with the clamping pins is fixed outside the female connector, and a sealing ring is arranged between the male connector and the female connector. The locking mechanism comprises a sleeve connected to the interior of the female connector in a sliding mode, a positioning pipe is fixed to the male connector, the steel ball clamps the sleeve under the action of the elastic force of the spring, and rotation of the sleeve and the female connector relative to the male connector can be limited within the preset working torque range; therefore, excessive abrasion of an internal sealing ring caused by frequent rotation of the male connector and the female connector is avoided, sealing stability of the quick-plug connector is guaranteed, meanwhile, when torsional force borne by the male connector and the female connector exceeds a preset range, the male connector and the female connector can release torsional stress through relative rotation, and the metal hose is effectively prevented from being damaged due to excessive torsion.

The invention provides a metal hose bending test device which solves the problems that an existing hose bending test device is difficult to control the bending angle and radius of a to-be-tested hose and is difficult to detect the bending performance of hoses with different lengths and pipe diameters. According to the technical scheme, a transverse clamp is composed of sliding clamp supporting bases which are symmetrically arranged at the two ends of a transverse rail and driven by an automatic rod pushing device, an electric moving platform of an angle limiting device is provided with a sleeve type push plate through a support, and the sleeve type push plate is formed by assembling a plurality of coaxial cylinders which are enlarged layer by layer from inside to outside; the axial direction of the cylinders is the same as the moving direction of the electric moving platform, electric cylinders used for pushing the multiple sets of cylinders respectively are arranged on the rear portion of the sleeve type push plate, and the electric moving platform is provided with a baffle used for limiting the hose. The flexible pipe bending device can adjust and control the bending radius and angle of a flexible pipe, adapts to detection of flexible pipes with different lengths and pipe diameter specifications, is simple in structure and outstanding in flexible pipe bending test capability, and improves the accuracy of a test result.

The invention discloses automatic welding machining equipment for a thin-wall metal hose, and relates to the technical field of welding machining, the automatic welding machining equipment comprises a base, a fixed seat and a guide rail are installed on the two sides of the top of the base correspondingly, and a positioning assembly and a sliding seat are installed in the guide rail correspondingly; the positioning assembly and the sliding base are slidably installed on the top of the base through the guide rail. According to the automatic welding machining equipment for the thin-wall metal hose, a worker adjusts the positions of a positioning assembly and a sliding base in a guide rail according to the position of a welding assembly, and the metal hose and a connector are clamped and fixed through the positioning assembly and a clamping inner supporting assembly correspondingly; the clamping inner supporting assembly supports the interior of the metal hose while clamping the connector so as to stably support the welding position of the metal hose. The phenomenon that when the connector sleeves the metal hose and the metal hose are welded through the welding assembly, the hose in the connector is prone to deformation and cannot be attached to the inner wall of the connector, and consequently the welding point position deviates is prevented.

The application discloses a kind of thin-walled metal hose automatic welding processing equipment, and the application relates to welding processing technical field, including base, the top of the base two sides are respectively provided with fixed seat and guide rail, the inside of the guide rail is respectively provided with positioning assembly and sliding base, the positioning assembly and sliding base are slidably installed on the top of base by guide rail.This thin-walled metal hose automatic welding processing equipment, by the position of welding assembly, the position of positioning assembly and sliding base is adjusted in guide rail by staff, and by positioning assembly and clamping inner support assembly, metal hose and joint are clamped and fixed respectively, clamping inner support assembly is clamped to joint while supporting in the inside of metal hose, to stabilize support metal hose welding position, prevent joint from being set outside metal hose by welding assembly when welding, the phenomenon that the hose in joint is prone to deformation and cannot be combined with the inner wall of joint to cause welding point position deviation.

The utility model relates to a plate heat exchanger cleaning device which comprises a dosing barrel, a chemical cleaning pump and a stainless steel security filter, a liquid medicine outlet is formed in the bottom end of the right side of the dosing barrel, and the liquid medicine outlet is connected with the liquid inlet end of the chemical cleaning pump through a UPVC pipe. The liquid outlet end of the chemical cleaning pump is connected with a filter inlet formed in the bottom end of the left side of the stainless steel security filter through a seamless steel pipe; a filter outlet is formed in the middle of the left side of the stainless steel security filter, the filter outlet is connected with a heat exchanger inlet flange of the plate heat exchanger through a stainless steel metal hose, and a heat exchanger outlet of the plate heat exchanger is connected with a cleaning liquid reflux inlet formed in the top end of the dosing barrel through a stainless steel metal hose. The problem of scale deposition of the plate heat exchanger is solved in a chemical cleaning mode, the situation that fins are physically cleaned one by one is changed, the shutdown maintenance time is shortened, and the equipment operation rate is increased.

The utility model discloses a metal hose with a compensation function, which comprises a metal hose main body and connecting pipe joints, a plurality of compensation rings are arranged on the metal hose main body, the connecting pipe joints are arranged at the two ends of the metal hose main body in a threaded fixing manner, and pipe joints are arranged at the end parts of the connecting pipe joints. The integral compensation ring is arranged on the outer side of the metal hose body, thermal expansion compensation can be conducted on the metal hose body through the compensation ring, the protection capacity of the metal hose body can be improved, the protection toughness of the metal hose body can be improved, cracking can be prevented, and the service life of the metal hose is prolonged; mounting heads are arranged at ports at two ends of the metal hose main body, threaded holes are formed in the middle parts of the mounting heads, a connecting head is arranged at one end of the connecting pipe joint, a screw head is arranged at the end part of the connecting head and can be fixed with the threaded holes in a threaded manner, so that the connecting pipe joint is convenient to mount, and a pipe joint is arranged at the end part of the connecting pipe joint.

The utility model relates to the technical field of metal hose vibration damping performance testing, and particularly discloses a metal hose vibration damping performance testing device which comprises a workbench, the surface of the workbench is fixedly connected with a first fixing plate, and the surface of the workbench is fixedly connected with a second fixing plate. A plurality of fixing rods are fixedly connected to the sides, close to each other, of the first fixing plate and the second fixing plate, adjusting plates are slidably connected to the surfaces of the fixing rods, mounting connectors are fixedly connected to the sides, close to each other, of the adjusting plates and the first fixing plate, and vibration detectors are mounted on the surfaces of the mounting connectors; metal hose bodies are mounted on the surfaces of the two mounting connectors, a moving motor is fixedly connected to the surface of the workbench, the output end of the moving motor is sleeved with a conveying belt, and two adjusting pull rods slidably penetrate through the surface of the second fixing plate. According to the utility model, the problem that the adjustment is not accurate enough due to manual adjustment and the fine adjustment needs to be carried out for many times is solved.

The utility model discloses a corrugated metal hose for a compressor, which relates to the technical field of corrugated pipes and comprises a corrugated pipe, a wear-resistant sleeve is coated on the surface of the corrugated pipe, a net sleeve is arranged on the wear-resistant sleeve, two ends of the corrugated pipe are respectively provided with a tension band, a connecting pipe is arranged at a port of the corrugated pipe, and the connecting pipe, the tension bands and the net sleeve are mutually welded. The corrugated pipe is protected through the wear-resistant sleeve arranged between the net sleeve and the corrugated pipe, the situation that the wave crest of the corrugated pipe is cut and damaged by the net sleeve due to vibration of the corrugated pipe is prevented, the service life of the corrugated metal hose of the compressor is prolonged, and practicability is higher.

The invention discloses a molten salt groove type heat collecting device which comprises a heat collector rotating along with the sun and a connecting assembly. The heat collector comprises a heat collecting pipe for collecting heat; the connecting assembly comprises a metal hose, a first connecting pipe and a second connecting pipe for communicating one end of the metal hose with the fixed pipeline; and the other end of the metal hose is communicated with the end part of the heat collecting pipe through the first connecting pipe. The overall structure of the device can be simplified, the number of potential leakage points is reduced, and the leakage risk is reduced.

The utility model discloses a novel air passage detection device, which comprises a sensor outer cover, a sensor inner cover and a sensor outer cover, the air filtering cotton is arranged at the air inlet end of the front air channel and used for filtering air moisture and particle impurities; the sensor assembly is arranged at the gas outlet end of the front gas channel and used for detecting gas concentration and components; the sealing foam is arranged between the sensor outer cover and the sensor assembly in a filling manner and is used for enabling gas to enter the sensor assembly to prevent side leakage; the fan assembly comprises a rear air channel and is used for regulating and controlling the gas flow during preheating and working of the sensor assembly according to the gas concentration and sensitivity; the metal hose comprises a middle air passage and is used for adjusting a measurable range and a measurement angle; wherein the front air passage, the middle air passage and the rear air passage are sequentially communicated to form a detection air passage. According to the utility model, the measurable range and the measurement angle are adjusted, and the air moisture and particulate impurities are filtered by adopting the gas filtering cotton, so that the impact influence on the sensor during sampling is reduced.

The utility model discloses a carbon calcining furnace discharger which comprises a discharging pipe, a corrugated metal hose is installed at the bottom of the discharging pipe, the bottom of the corrugated metal hose is fixed to a discharging port, an auxiliary discharging mechanism is installed on the outer side of the discharging pipe, and the auxiliary discharging mechanism comprises a rotating shaft, a synchronous wheel, a synchronous belt, a cam and a first motor. The outer side of the discharging pipe is rotationally connected with three rotating shafts, each rotating shaft is provided with a synchronous wheel, the three synchronous wheels are in transmission connection through a synchronous belt, the top of each rotating shaft is fixedly provided with a cam, the first motor is fixed to the outer side of the discharging pipe, and an output shaft of the first motor is connected with the rotating shafts; and an angle adjusting mechanism for driving the discharge port to rotate is mounted on the discharge pipe. Vibration discharging is carried out from the outer side of the discharging pipe, the discharging speed is higher, and blocking is not prone to occurring; and the discharging angle is convenient to adjust, and the discharging angle is convenient to adjust according to requirements.

The utility model relates to a converter mouth purging device in the converter tapping process, and belongs to the technical field of converter steelmaking in the metallurgical industry. According to the technical scheme, one end of a large rotating arm (4) is rotationally connected to a stand column (1) through a rotating body and a rotating body support, the other end of the large rotating arm (4) is rotationally connected with one end of a small rotating arm (13) through the rotating body and the rotating body support, a universal support (11) is rotationally connected to the other end of the small rotating arm (13) through the rotating body, a positioning sleeve (10) is arranged on the universal support (11), and the positioning sleeve (10) is connected with the stand column (1). The stainless steel purging pipe (7) penetrates through the positioning sleeve (10), one end of the stainless steel purging pipe (7) is connected with the nozzle (5), the other end of the stainless steel purging pipe (7) is connected with the elbow (14) and the control handle (15), and the elbow (14) is connected with the metal hose (16) through the quick connector (17). The device has the beneficial effects that bonded slag or steel at the converter mouth can be automatically, safely and efficiently cleaned, and the normal operation of the converter is ensured.

The utility model discloses a construction structure for a metal conduit to penetrate through a building deformation joint, and relates to the technical field of building construction. Comprising a junction box, a flexible metal wire protection tube and a grounding wire. The two ends of the flexible metal wire protection tube are respectively connected with a junction box through a metal hose external tooth joint; a grounding wire passes through the junction box at one end to the junction box at the other end; fastening pipe lock nut joint preformed holes are formed in the floor support plate side vertical plates on the two sides of the telescopic settlement joint, and fastening pipes are pre-buried in the floor support plate. The sides, away from each other, of the two junction boxes are connected to the fastening pipe lock nut joint preformed holes in the two sides through fastening pipe lock nut joints respectively. The fastening pipe lock nut joint is connected with the fastening pipe; the fastening pipe lock nut joint is provided with a processing hole, and the end part of the grounding wire penetrates out of the processing hole; according to the structure, a relay junction box does not need to be arranged, the connection and installation of the flexible metal wire protection tube and the junction box are simpler and more convenient, and the overall difficulty of construction is reduced.

The invention discloses a waste heat boiler online hydraulic ash removal system which comprises a bearing steel frame, I-shaped steel is arranged at the top of the bearing steel frame, a hoisting support is slidably arranged on the I-shaped steel through a transverse moving device, a roller is arranged in the hoisting support through a longitudinal lifting device, and a metal hose is wound on the roller. A nozzle is arranged at one end of the metal hose, a water supply device is connected to the other end of the metal hose, a plurality of guide pipes are arranged on the waste heat boiler, and the top ends of the guide pipes extend to the top of the bearing steel frame. According to the device, the spray heads on the metal hose can be automatically and flexibly moved into different parts of the waste heat boiler along the guide pipe, so that the effect of effective hydraulic ash removal on all-dimensional inner walls of the different parts is thoroughly achieved, and ash removal work of multiple parts can be completed through one device; in this way, the maximum use efficiency of equipment can be achieved, the cleaning efficiency is remarkably improved, the heat exchange effect is enhanced, energy waste is reduced, and the operation and maintenance cost is reduced.

The invention belongs to the technical field of magnesium desulfurization wastewater treatment, and particularly relates to a magnesium desulfurization wastewater evaporation concentration material transfer anti-crystallization blockage system which comprises an evaporation separator and crystallizers, a circulation pipeline is arranged between an inlet and an outlet of a material transfer pump, and a material transfer pipeline is connected between a material transfer regulating valve and the crystallizers. The circulating pipeline and the branch pipelines are respectively communicated with the material transferring pipeline through branch pipelines, and the circulating pipeline and the branch pipelines are detachable metal hoses; a steam inner pipe is arranged in the material transferring pipeline, a heat preservation layer is arranged outside the material transferring pipeline, and opening degrees of the material transferring adjusting valve and the steam adjusting valve are in linkage control. Compared with the prior art, the device has the beneficial effects that effective anti-blocking prevention and emergency treatment are carried out on materials which are long in material transfer pipeline, rapid in concentration and temperature change and easy to crystallize in multi-point material transfer, cooperative control over the temperature of the separator feed liquid and the temperature of the material transfer pipe feed liquid is achieved, and concentration and temperature monitoring is carried out on the output feed liquid; materials always flow in the material transfer pipeline, and continuous production operation is guaranteed.

The invention relates to the technical field of flexible connecting pipelines, and discloses an asymmetric net sleeve metal hose and a forming method thereof.The asymmetric net sleeve metal hose comprises a corrugated pipe, the two ends of the corrugated pipe are fixedly connected with connecting pipes correspondingly, the outer side of the corrugated pipe is wrapped with a woven net sleeve, and the two ends of the woven net sleeve are fixedly connected with connecting rings correspondingly; the connecting ring is fixedly connected with the connecting pipe, and the woven mesh sleeve is of an unbalanced woven structure. The bending fatigue life of the metal hose is prolonged, the minimum bending radius is reduced, the self-supporting capacity of the metal hose in the specific direction is improved, and the application range of the metal hose is expanded.

The invention relates to the field of tunnel fire prevention and control, and particularly discloses a movable tunnel water curtain system and a control method thereof.The system comprises a water curtain generating device used for generating water curtains on the two sides of a smoke control subarea, the water curtain generating device comprises a spraying pipe, a metal hose and a water supply pipe, and the spraying pipe and the water supply pipe are connected through the metal hose; the moving device comprises a track and a driving mechanism, and the driving mechanism drives the spraying pipe to do reciprocating translation along the track; the fire detection alarm is used for detecting the fire occurrence condition in the smoke control subarea in the tunnel; the multiple temperature detection sensors are longitudinally arranged at intervals along the top of the tunnel; and the controller is electrically connected with the driving mechanism of the water curtain generation device and the temperature detection sensor, and the controller adjusts the movement of the spraying pipe based on the temperature information. The movable water curtain system is introduced, the position can be automatically adjusted according to the position of a fire source, and accurate isolation of the fire source is achieved.

The utility model discloses a clamping and positioning mechanism for metal hose welding. The clamping and positioning mechanism comprises a horizontal and rotatable supporting piece and a metal sleeve, wherein the metal sleeve is coaxially and slidably arranged on the supporting piece in a sleeving mode and can be locked after sliding. A plurality of metal tensioning pieces are fixedly arranged at one end of the metal sleeve at intervals in the circumferential direction of the metal sleeve, the end of the supporting piece is a reducing part, and when the metal sleeve moves from the end of the supporting piece to a shaft body of the supporting piece, all the metal tensioning pieces can be expanded and wrap the supporting piece. According to the clamping and positioning mechanism for welding the metal hose, the defects that in the prior art, during welding, a worker needs to manually rotate the metal hose for girth welding, but in the rotating process, the metal hose is prone to moving relative to the positioning mechanism, so that the welding position deviates, and the welding effect is reduced are overcome.

The utility model discloses a metal hose air tightness detection mechanism which comprises a flange fixedly communicated with the output end of a detection box, the flange is in threaded connection with a locking sleeve, a rubber sleeve is arranged in the locking sleeve in a sliding mode, and a cavity is annularly formed in the side wall of the rubber sleeve. The compression spring is arranged between the annular cavity and the vertical rod of the sliding rod, the side wall of the rubber sleeve is attached to the side wall of the annular cavity, a conical groove is formed in the end, away from the flange, of the locking sleeve, and a cavity is formed in the side wall of the rubber sleeve. The flange pushes the inflating assembly to inflate the cavity, the rubber sleeve is blown to bulge to annularly extrude the surface of the metal hose, gas in the cavity is pumped out by the inflating assembly after detection is completed, the rubber sleeve gradually becomes flat, extrusion on the metal hose is removed, the metal hose is conveniently taken out, and meanwhile the integrity of the rubber sleeve is protected. The air leakage phenomenon is reduced, and the detection accuracy of the metal hose is improved.

The oil-immersed transformer comprises an oil tank, a relay and an oil conservator, hose connectors are fixedly installed on the oil conservator and the relay through connecting flanges respectively, positioning pipes are fixedly installed on the two hose connectors respectively, a metal hose is arranged between the two hose connectors, and the metal hose is connected with the relay. The two positioning pipes are sleeved with the two ends of the metal hose respectively, a locking assembly used for locking the metal hose is arranged on the hose connector, and a supporting assembly used for supporting the metal hose is arranged on the oil conservator. The transformer has the advantages that the expansion tank is connected with the relay through the metal hose, and the metal hose is used as a connecting medium, so that the anti-vibration performance of the joint between the expansion tank and the relay is improved, the oil leakage phenomenon caused by transportation shaking is effectively prevented, the oil leakage risk is greatly reduced, and the safety and reliability of the transformer are improved.

The utility model discloses a plastic-coated hose which comprises a hose body, the hose body is composed of a double-buckle metal hose and a soft rubber layer coated outside the double-buckle metal hose, the plastic-coated hose further comprises a compression spring, a plurality of pipeline fixing clamps arranged at intervals along the extending track of the compression spring are arranged on the inner side or the outer side of the compression spring, and the hose body is bent into a spiral shape. The hose body is sequentially clamped on all the pipeline fixing clamps; the pipeline fixing clamp is in a U shape, and the pipeline fixing clamp is provided with a necking part close to a clamping opening. According to the plastic-coated hose, the compression spring for guiding the hose to extend is arranged and serves as an elastic support, so that bending of the hose is limited, deformation of the hose at a large bending angle is limited, an aged plastic layer is protected, the service life of the hose is prolonged, the protection effect is enhanced, the overall function is complete, and practicability is high.

The invention relates to the technical field of metal hoses, and discloses a manufacturing device of a metal hose and a using method.The manufacturing device of the metal hose comprises steel pipe forming equipment used for manufacturing a steel belt into a steel pipe; the steel pipe forming equipment comprises a base plate, a steel belt extrusion forming assembly, a shaping welding mechanism and a removing mechanism, wherein the steel belt extrusion forming assembly, the shaping welding mechanism and the removing mechanism are fixedly connected to the top of the base plate and sequentially distributed. The shaping, cleaning and detecting assembly comprises a support which is fixedly connected with the shaping and welding mechanism and is of an L-shaped structure, and the bottom of the support is connected with a rotating mechanism and a retaining rod which is arranged on one side of the rotating mechanism and fixedly connected with the support. Deformation in the welding process is effectively prevented, the consistency of the metal hose is improved, the machining efficiency of the metal hose is improved, welding detection is conducted in time after welding is completed, and the welding effect is rapidly detected.

The invention provides a pipeline pressing leak detection device, and belongs to the technical field of pipeline detection devices. The pipeline pressurizing leak detection device comprises a first manipulator, a second manipulator and a valve, one end of a detected pipeline can be hermetically clamped by the first manipulator, the other end of the detected pipeline can be hermetically clamped by the second manipulator, and a medium output end of the valve is communicated with an accommodating space in the detected pipeline. The detection medium can be conveyed to the containing space of the detected pipeline, and whether the detected pipeline leaks or not is judged by detecting whether the medium leaks in the containing space of the detected pipeline or not. Whether a conventional pipeline, a pipe fitting and a metal hose have leakage points or not is unknown, hidden dangers are large when the conventional pipeline, the pipe fitting and the metal hose are installed in a system, leakage detection needs to be carried out before installation, a joint for leakage detection needs to be welded and needs to be cut off after leakage detection is completed, and the leakage detection process is complex. According to the pressing leak detection device, the detected pipeline is clamped by the two manipulators, leak detection of the detected pipeline can be completed without welding a leak detection joint, and the pressing leak detection device is convenient to use.

The utility model discloses a suspended ceiling component with a bendable metal hose, which relates to the technical field of mechanical and electrical installation engineering and comprises a suspended ceiling joist component, a suspended ceiling support, a track support, a suspended ceiling pinch plate and a metal hose spraying component. The rail support and the suspended ceiling support are both installed on the upper surface of the suspended ceiling joist component, the metal hose spraying component is located above the suspended ceiling joist component, and the metal hose spraying component is partially connected to the rail support in a sliding mode. According to the utility model, the adjustability of the metal hose spraying component is mainly utilized to replace the traditional rigid galvanized steel pipe, so that the pipeline can be bent, and the position of the spraying head can be adjusted to meet the design requirement and provide no installation space for other installation projects; and meanwhile, the labor cost is effectively reduced by reducing the later disassembly and modification project amount.

The invention discloses a molten salt groove type heat collecting device which comprises a heat collector rotating around a rotating shaft along with the sun and a connecting assembly. The heat collector comprises a heat collecting pipe for collecting heat; the heat collecting pipe and the rotating shaft are arranged in parallel at an interval; the connecting assembly comprises a metal hose, a transmission shaft, a first connecting pipe and a rotating joint communicated with the heat transfer medium pipe; the rotating joint is provided with a first end and a second end communicated with the heat transfer medium pipe, the first end and the second end are communicated and relatively rotatably arranged, and the first end is communicated with the first connecting pipe; the first connecting pipe and the rotating shaft coaxially and synchronously rotate through the transmission shaft; one end of the metal hose is communicated with the end part of the heat collecting pipe, and the other end of the metal hose is communicated with the rotary joint through the first connecting pipe. The number of potential leakage points can be reduced, and the leakage risk is reduced.

The utility model discloses a soft and hard pipe connecting structure at the end part of an R744 air conditioner hose, which comprises the R744 air conditioner hose and a soft and hard pipe connecting component, wherein the R744 air conditioner hose comprises an innermost barrier layer, an inner rubber layer positioned on the outer side of the barrier layer, a reinforcing layer positioned on the outer side of the inner rubber layer and an outer rubber layer positioned on the outer side of the reinforcing layer; the barrier layer is a metal hose; the soft and hard pipe connecting assembly comprises a connector, a lining core and a rivet sleeve, one side of the connector is connected with the end of the metal hose in a welded mode, the other side of the connector is inserted into the lining core connected with the hard pipe, and a sealing ring is arranged between the connector and the lining core. The inner rubber layer, the reinforcing layer, the outer rubber layer and the outermost rivet sleeve are sequentially wrapped on the outer side of the lining core from inside to outside, and the rivet sleeve is used for riveting the joint, the lining core, the inner rubber layer and the outer rubber layer to form a whole. The utility model has the advantages of low cost, capability of meeting actual working condition requirements and process feasibility, and suitability for mass production.