146 results about "Closed chamber" patented technology

The invention relates to the technical field of tempered film production, in particular to an oil coating all-in-one machine for a flat tempered film, which comprises a shell, a transmission mesh belt, a cleaning assembly, a telescopic driving part, a sealing cover and a plugging film, a transmission mesh belt is arranged on the machine shell; a cleaning assembly is arranged on the machine shell. A plurality of telescopic driving pieces are arranged on the machine shell; the telescopic ends of all the telescopic driving pieces are jointly and fixedly connected with a sealing cover. The inner wall of the sealing cover is an inclined surface; a blocking film is arranged at the bottom of the sealing cover. The closed chamber is formed by combining the closed cover, the blocking film and the tempered film, oil mist sprayed out at a high speed is prevented from diffusing all around after making contact with the tempered film and adhering to the surface of other sprayed or unsprayed tempered film, uneven adhesion of the oil mist on the surface of the tempered film is avoided, meanwhile, oil liquid is prevented from adhering to the back face of the tempered film, and the service life of the tempered film is prolonged. The viscosity reduction of the adhesive layer on the back of the tempered film is avoided and the quality of the tempered film is guaranteed.

The invention provides a vertical liquid damper which comprises a closed container, buffer liquid, a horizontal partition part and a horizontal energy dissipation part, a base connected with an external structure to be subjected to vibration reduction is arranged at the bottom of the closed container, and the interior of the closed container is divided into at least two independent closed cavities by the horizontal partition part; each closed cavity is filled with the buffer liquid flowing in a collision mode, the horizontal energy dissipation pieces are arranged in the closed cavities, each horizontal energy dissipation piece comprises a middle hollow channel and a peripheral baffle, and the peripheral baffle is provided with a pore structure for the buffer liquid to pass through in the vertical movement process. The device has the advantages of effective dissipation of vertical vibration energy, simple structure and the like.

The invention discloses an electrically-operated drop-out fuse and a control method, and relates to the field of circuit devices for power supply or distribution, the electrically-operated drop-out fuse comprises a protective insulator, an intelligent control module, a drop-out assembly, a driving mechanism and a transmission mechanism, the protective insulator is of a longitudinally-penetrating groove structure, the top of the protective insulator is provided with a closed upper cover, and the intelligent control module is connected with the drop-out assembly; two sides of the protective insulator extend downwards to form side walls, the side walls and the insulator form a shield used for shielding the upper static contact and the upper moving contact, a closed cavity is arranged at the rear part of the protective insulator, and a driving mechanism is arranged in the cavity; the intelligent control module is electrically connected with the driving mechanism, the driving mechanism is connected with the transmission mechanism, and the intelligent control module controls the driving mechanism to drive the falling assembly through the transmission mechanism to realize opening or closing; according to the fuse and the control method provided by the invention, remote intelligent switch-on and switch-off can be realized, the operation is safe and reliable, the structure is compact, and the protection performance is excellent.

The invention discloses a production device for preparing carbon nanotubes, the production device comprises a closed chamber, a chain conveyor and a heat preservation chamber, the closed chamber comprises an inlet end, an outlet end and a middle pipeline, the middle pipeline comprises an upper-layer pipeline, and the upper-layer pipeline comprises an inlet section, a reaction furnace and an outlet section. The main production steps for preparing the carbon nanotube are as follows: 1) carbon source gas enters a reaction furnace and becomes high-temperature gas under the action of a heating device; (2) the catalyst falls into a material box located at the inlet end through a feeding device; (3) the material box enters the reaction furnace through the inlet section; 4) stacking carbon nanotubes generated by the carbon source gas under the action of a catalyst in a material box; 5) the material box in the reaction furnace enters the outlet end through the outlet section, 6) the opening of the material box is changed from upward to downward at the position of the chain wheel, and meanwhile, the carbon nano tube in the material box falls into the storage bin through the discharging device.The device has the main advantages of being simple in structure, high in efficiency, low in energy consumption, safe, reliable and easy to maintain.

The invention relates to the technical field of oxidation treatment of powder metallurgy products, and discloses a surface oxidation treatment device for high-airtightness powder metallurgy products, which comprises a pretreatment mechanism, one end of the pretreatment mechanism is fixedly connected with a steam treatment furnace, and a conveying mechanism is mounted between the pretreatment mechanism and the steam treatment furnace; a powder metallurgy product assembly is conveyed on the conveying mechanism; the pretreatment mechanism comprises a first machine body, an outer shell, a ventilation shell, a vacuum assembly and a first steam assembly, the outer shell is connected to the upper side of the first machine body, and the ventilation shell is fixedly connected to the inner side of the outer shell. According to the active pretreatment method, the closed cavity is vacuumized firstly to form negative pressure, then low-temperature steam is injected, and the steam is forcibly and rapidly permeated into all the deep holes of the powder metallurgy product through the pressure difference. The problem of non-uniform permeation caused by obstruction of residual air in pores in traditional direct steam treatment is fundamentally solved.

The present application relates to a kind of fuel power device, the center wheel is connected by output shaft in the center through hole of shell, the circumference of center wheel is equipped with several power blocks;Several rotors are equipped on the outer periphery of center wheel, each rotor is matched with the independent space of shell by bearing seat, each rotor is linked with output shaft by transmission mechanism I;Several oblique tooth grooves are equipped on the rotor, power block passes from tooth groove when rotor is tangent with center wheel and runs, the shell corresponding to each rotor, power block and air inlet forms explosion chamber when power block passes from tooth groove, spark plug is provided at air inlet, so that explosion chamber is filled with a certain proportion of air and fuel gas and produces blasting, and power block is pushed;Several exhaust ports are provided on the surface of shell, and exhaust port is staggered with explosion chamber.This power device forms closed chamber by carousel transmission structure, and makes fuel mixture gas blast production power, so as to realize the production of power source.

This invention discloses a method for pre-fabricating porosity defects in nickel-based alloy welds, comprising: S1.1, applying a bottom weld bead structure to the surface of a metal test plate, the bottom weld bead structure comprising N consecutive adjacent weld beads, where N is an integer greater than 1; controlling the welding position of adjacent weld beads to form a gap between each pair of adjacent weld beads; S1.2, applying grease into each of the gaps as a gas source to induce porosity; S1.3, applying a second weld bead structure on the bottom weld bead structure, using the second weld bead structure to completely cover each of the gaps, encapsulating the grease, and forming one or more first closed chambers containing grease. This invention organically combines the porosity generation law of nickel-based welds with welding process control, successfully pre-fabricating porosity defects, and laying the foundation for the study of the porosity generation mechanism of nickel-based welds and subsequent process improvement.

The invention discloses a laser welding device and method based on a transparent plastic material, and the device comprises a pressing jig, a multi-directional moving assembly, a laser welding head, a quartz pressing plate, a feeding and discharging module and a jig carrier plate which are arranged on a workbench, and the jig carrier plate is provided with a heatable welding jig; the welding jig is provided with an elastic cavity with an opening in the upper portion, a plastic product to be welded is placed in the elastic cavity, and the quartz pressing plate is used for pressing the elastic cavity to form a closed cavity and abutting against the plastic product; a monitoring unit is further arranged in the pressing jig and used for detecting the downward pressing force of the quartz pressing plate and the welding collapse value in the welding process. The laser welding device based on the transparent plastic material can effectively solve the problems of insufficient light absorption, insufficient welding strength and long welding time of transparent plastic in the welding process.

The invention discloses an anti-corrosion device for a directly-buried steam pipeline, and relates to the technical field of pipeline corrosion prevention. According to the scheme, the device comprises a connecting mechanism used for being fixed to the outer wall of the steam directly-buried pipeline in a hooping mode; the closed box body is arranged on the connecting mechanism, the closed box body comprises an underground closed pipe located under the ground and an overground maintenance box body located on the ground, and the underground closed pipe is in sealing fit with the outer wall of the steam directly-buried pipeline through a sealing ring to form a closed cavity; the sacrificial anode is arranged in the overground maintenance box body; and the electrode assembly is arranged in the closed cavity and used for being electrically connected with the outer wall of the steam directly-buried pipeline and the sacrificial anode to form a cathode protection loop. By arranging the connecting mechanism composed of the pipe clamping piece with the bottom of the arc-shaped structure and the frame-shaped connecting plate, during installation, only limited excavation needs to be conducted on the two sides of the pipeline, and the earthwork excavation volume and the influence of construction on pipeline operation are greatly reduced.

A kind of inside tube spraying device of noise reducer, including base, vertical plate is welded on base, a pair of fixed ring is welded on the upper end of vertical plate, outer tube cover is welded in fixed ring, the end of outer tube cover is shaped with convex edge, end disc is installed on convex edge by screw, rotating tube is coaxially and rotatably arranged on end disc, a pair of communication pipe is communicated on rotating tube, rotating plate is fixed on the inner side end of rotating tube, outer tube and inner tube are fixed on the other end of rotating plate, a plurality of spray heads are fixed on the inner wall of outer tube and the outer wall of inner tube.The utility model discloses when spraying, a more closed chamber is formed by outer tube cover and the sealing disc connected and fixed thereon, so that, paint can be avoided to splash in the process of spraying, to avoid causing pollution to environment.

The utility model discloses a water quality sampler convenient for sampling, which comprises an inner cylinder and an outer cylinder which are sleeved inside and outside and rotationally connected, the inner cylinder is provided with a closed chamber, partition plates are arranged in the closed chamber from top to bottom at intervals, the partition plates divide the closed chamber into a plurality of water storage cavities, and a water inlet is arranged on the side wall of each water storage cavity; water inlet grooves matched with the water inlets are formed in the outer cylinder and are communicated with the outside; the outer cylinder and the inner cylinder rotate relatively so that the water inlet groove openings can be communicated with the corresponding water inlets, the water inlets can be communicated with the outside, or the water inlet groove openings and the corresponding water inlets can be staggered so that the water inlets can be closed. During water taking, the water taking device goes deep into a preset depth of a water area, the inner cylinder and the outer cylinder are relatively rotated, water bodies with different depths can be guided into the water storage cavities, then the inner cylinder or the outer cylinder is reversely rotated, the water inlets are closed, and then the water taking device is taken out of the water area, so that the water quality of the target depth of the water area can be sampled; the sampling accuracy of target water quality is improved.

The application discloses a supercooling box suitable for a condenser and a horizontal condenser, wherein the cover plate of the supercooling box is horizontally arranged at the top, the arc-shaped plate is extended upwards from the bottom of the arc-shaped plate and is buckled with the upper end cover plate, the outlet is arranged at the middle of the bottom, the notches are arranged at the two ends to form the liquid inlet, the end plate, the cover plate and the arc-shaped plate form a closed chamber, the baffles are distributed and arranged in the closed chamber, the liquid flow forms a serpentine or zigzag flow channel along the baffles in the closed chamber, the two ends of the supercooling box are arranged at a distance from the tube plate at the two ends of the cylinder, and the arc-shaped plate at the bottom of the supercooling box is arranged at a distance from the cylinder and is consistent with the arc of the cylinder. The defects that the existing condenser is easy to accumulate refrigerant and the refrigerant is gathered at the water inlet side are improved.

The invention discloses a reinforcing steel bar connecting sleeve, a connecting structure and a construction method, and relates to the technical field of building reinforcing steel bar connection.The reinforcing steel bar connecting sleeve comprises a sleeve body and reinforcing steel bars to be connected, and the sleeve body comprises a sleeve body and a sealing gasket located at the end opening of the sleeve body; a closed cavity is formed in the barrel through the sealing gasket, and a cementing material is arranged in the closed cavity of the barrel; the connecting reinforcing steel bars penetrate through the sealing gasket and penetrate into the cylinder body, the connecting reinforcing steel bars are wrapped by the cementing material, and the cylinder body is connected with the reinforcing steel bars. The invention has the advantages that the cementing material is injected into the sleeve in advance, only the reinforcing steel bar is inserted during installation, the installation is convenient, and the connection is reliable; due to the structure of the sealing gasket, little cementing material leaks out, the connection of the sleeve is visually checked due to the arrangement of the material bolt hole, and compared with an existing grouting sleeve, the connection quality is better guaranteed; the sleeve can be applied to a cast-in-place environment and a prefabrication environment, and the other end of the sleeve is provided with ports in different forms, so that the sleeve can be suitable for various occasions and is convenient to install and efficient in connection.

The invention relates to the technical field of shield pumps, and discloses a gap self-compensation axial force balance shield pump based on heterogeneous material thermal matching, which comprises a pump body, a pump cover assembly and a motor shell assembly which are enclosed to form a closed cavity for mounting a rotor part; the rotor component comprises an impeller, the impeller is arranged in an inner cavity of the pump body, a rear cover plate of the impeller is provided with an annular rear opening ring extending in the axial direction, the motor shell assembly comprises a motor shell, the end, facing the pump body, of the motor shell is provided with an annular opening ring, the annular opening ring and the annular rear opening ring are oppositely arranged in the radial direction, and a rear opening ring radial gap is formed between the annular opening ring and the annular rear opening ring. The impeller is made of a first polymer-based composite material, the motor shell is made of a second polymer-based composite material, and the thermal expansion coefficient of the first polymer-based composite material is larger than that of the second polymer-based composite material. According to the invention, the situation that the main thrust bearing liquid film bears too high load at high temperature can be avoided, and a dynamic and self-adaptive axial force compensation system is formed.

The utility model relates to the technical field of sealing equipment, and aims to provide a sliding sealing door for totally sealing negative-pressure dust removal equipment of a car dumper, which comprises a sliding rail and a steel rail which are arranged on the upper side and the lower side of a doorway of a car inlet end and a car outlet end of a sealed chamber, and a movable door is arranged between the sliding rail and the steel rail. The middle of the inner side face of the movable door is connected with a support through a shifting fork assembly arranged on the movable door, the support is located above the sliding rail, the top of the shifting fork assembly is connected with an oil cylinder, and the tail end of the oil cylinder is installed on the sliding rail and the outer wall of the closed chamber through a base. According to the utility model, the shifting fork assembly is driven by the hydraulic cylinder and is matched with a dynamic matching structure of the pin shaft and the strip-shaped hole, so that the opening and closing actions of the movable door are ensured to be completely synchronous with the car leaning and pressing operations of the car dumper, and the system coordination is improved; and a three-dimensional constraint system is formed by combining limiting and guiding of the backstop and the connecting rod assembly, so that the door body is effectively prevented from derailing, and the fault occurrence rate is reduced.

A downhole solids separator having: a plurality of solids separation modules, a production tube disposed therein, one or more limited entry ports in the production tube, placed in each of the modules, an intake port in the lower half of each module opening into a wellbore annulus, the intake port below the limited entry port of the module, a closed chamber for collecting solids, isolated from the well bore, the closed chamber below modules, a solids conveying conduit from at least one module, opening into the closed chamber, an opening restricted to less than the size of the production tube in the conduit near the bottom of the module, an opening in the production tube in the closed chamber, where the production tube opening and conduit opening are configured to effect a drop fluid velocity into production tube to a level insufficient to carry solids into the production tube.

The utility model discloses a quick-changing device for a guider of an electric spark small hole machine, which comprises a guide sleeve seat, a closed cavity is arranged in the guide sleeve seat, the upper end of the closed cavity is open, the bottom of the guide sleeve seat is coaxially provided with an inserting hole along the vertical direction, and the lower end of the closed cavity is communicated with the upper end of the inserting hole; the guide device further comprises a guide positioning piece and a guide device sleeve. The guide positioning piece is inserted into the closed cavity from top to bottom, the upper end of the guide positioning piece is hermetically assembled with the open end of the closed cavity, and the lower end of the guide positioning piece is inserted into the insertion hole for coaxial positioning; rapid positioning of the guider sleeve can be achieved through matching of the alignment groove and the guider sleeve, and meanwhile rapid fixing operation in the positioning process can be achieved through matching of the piston, the limiter and the guider sleeve. According to the utility model, through the cooperation of the piston and the plurality of bosses, when the guider sleeve is disassembled, the guider sleeve can be loosened and pushed away from the guide positioning piece.

The utility model relates to the technical field of pipe gallery protection equipment, in particular to pipe gallery electric power fireproof protection equipment which comprises a power cable, a fan and a heat exchange assembly, a lower bin shell is arranged at the bottom of the power cable, an upper bin shell is arranged above the lower bin shell, and a lower sealing edge and an upper sealing edge are arranged on the two sides of the lower bin shell and the two sides of the upper bin shell respectively. A heat exchange assembly is arranged on one side of the lower bin shell and one side of the upper bin shell, and a fan is arranged on one side of the heat exchange assembly. The lower bin shell, the upper bin shell, the lower sealing edge and the upper sealing edge are arranged on the outer side of the power cable to form the closed cavity, the carbon dioxide gas is filled to isolate oxygen, the power cable is prevented from catching fire due to high temperature or other factors, meanwhile, the fan is arranged to drive the carbon dioxide gas to circularly flow in the closed cavity and the heat exchange assembly, and the heat exchange efficiency is improved. The heat generated by the power cable is taken away, the carbon dioxide gas is cooled to guarantee the heat dissipation capability, and the power cable is further prevented from being on fire at high temperature.

This application provides a device and method for measuring the amount of electrolyte adsorbed on an electrode. The device includes a housing, a storage tank, a weighing component, a driving component, and a data acquisition controller. The housing has a closed chamber, in which the storage tank, weighing component, and driving component are all located. The weighing component includes at least one weighing device, each weighing device including a suspension rod, a suspension damping device, and a weight sensor. The suspension end of the suspension rod is located above the storage tank, and the suspension rod is connected to the weight sensor through the suspension damping device. The driving component is used to drive the storage tank or the weighing component to move up and down. The data acquisition controller is connected to the weight sensor and is used to collect and process the data measured by the weight sensor. This application can measure the mass of electrolyte adsorbed on the electrode in real time and is simple to operate.

The utility model discloses a preservative film wrapping machine capable of removing bubbles, and relates to the field of wrapping machines, the preservative film wrapping machine comprises a mounting rack, the inner wall of the mounting rack is fixedly connected with a positioning rod, the outer wall of the positioning rod is fixedly connected with an air extracting pump, one side of the air extracting pump is provided with an air pipe, one end of the air pipe is provided with an air extracting head, and the other end of the air pipe is provided with an air outlet. And a fixing frame is mounted on the outer wall of the air exhaust head. The fixing frame is arranged to clamp and fix the air exhaust head, when the device is used, the arrangement of the fixing frame and the air exhaust head facilitates air exhaust of the inner space wrapped by the preservative film, air bubbles can be conveniently removed, the usability of the device is improved, the connecting frame is arranged to move the limiting frame, and when the device is used, the air exhaust head is clamped and fixed through the connecting frame. And by arranging a connecting frame and a limiting frame, the preservative film can be conveniently extruded and fixed, the preservative film is prevented from moving, meanwhile, a sealed cavity is formed by the limited preservative film, air exhaust and bubble removal are facilitated, and the usability of the device is improved.

The invention provides a gas leakage detection device for surface soil. The gas leakage detection device for surface soil comprises a cylinder, a gas sensing assembly and a diaphragm, one end of the cylinder is open, the other end of the cylinder is closed, the diaphragm is connected with the cylinder and transversely arranged in an inner cavity of the cylinder so as to divide the inner cavity of the cylinder into a closed chamber and an open chamber, the closed chamber is used for forming negative pressure, and the open chamber is used for forming negative pressure. The open cavity is provided with a gas sensing assembly, and the open end of the cylinder is used for being inserted into soil. According to the gas leakage detection device for the surface soil, the open end of the cylinder is inserted into the surface soil, so that gas in the soil can enter the open cavity, and after negative pressure is formed in the closed cavity, the diaphragm transmits the negative pressure to the open cavity, so that the gas in the soil is sucked in and retained in the open cavity; and then components are detected by the gas sensing assembly, so that whether gas leakage occurs or not is judged.

The utility model discloses waste shredding and baking equipment which comprises a closed chamber, a shredding machine is arranged on the left side of the closed chamber, a connecting pipe is arranged at the upper end of the closed chamber, a sleeve and an air outlet hole are arranged at the upper end and the lower end of the connecting pipe respectively, two supporting columns are arranged in the closed chamber and connected with a rolling shaft respectively, and the rolling shaft is connected with a motor. A roller is arranged between the two rolling shafts, an upper cover plate and a lower cover plate are arranged at the upper end and the lower end of the roller respectively, two symmetrical inclined blocks are arranged on the lower portion in the roller, a plurality of small holes are formed in the side wall of the roller, and the problem that oil and water cannot be effectively treated from oil-containing waste at the head and the tail of the rolling mill can be well solved.

The application belongs to the field of water pumps, and particularly relates to a water pump, which comprises a pump body with a cavity, an impeller body installed in the cavity of the pump body, the impeller body comprising an upper circular sheet, a lower circular sheet and a plurality of single circular-arc blades, the plurality of single circular-arc blades being arranged in a circular array and located between the upper circular sheet and the lower circular sheet, the lower circular sheet being provided with a mounting hole, an impeller seat comprising a base and a plurality of three-dimensional twisted blades arranged in a circular array on the base, the base being in butt joint with the mounting hole, the plurality of three-dimensional twisted blades corresponding to the plurality of single circular-arc blades one by one, the single circular-arc blades and the three-dimensional twisted blades having different curvatures, the corresponding single circular-arc blades and three-dimensional twisted blades jointly forming impeller blades, and the plurality of impeller blades and the inner wall of the cavity jointly enclosing a plurality of closed chambers for pumping. The application can simplify the impeller processing procedure and reduce the processing cost.

The utility model provides a reaction platform, this reaction platform is used for carrying out the combustion or gasification reaction of particle, this reaction platform includes: reaction chamber cavity, reaction chamber cavity is the closed chamber for accommodating particle and carrying out the combustion or gasification reaction, ignition device, ignition device is used for igniting the particle in reaction chamber cavity, ultrasonic wave suspension device, ultrasonic wave suspension device includes the generating part and the reflection part, wherein, the generating part is opposite with the reflection part and each other at least partly extends to the inside of reaction chamber cavity, the one end on the generating part inside reaction chamber cavity is used for producing ultrasonic wave, the one end on the reflection part inside reaction chamber cavity is provided with the reflecting surface towards the generating part, the reflecting surface is the face that is recessed towards the generating part, and the reflecting surface carries out the reflection to the ultrasonic wave received on it. Avoided the physical contact between reaction platform and particle, facilitated the reduction and observed the reaction state of particle in the actual application process and realized the safe use.

The invention relates to a cross-shaped hybrid wind turbine foundation and a method for constructing the same. The cross-shaped hybrid wind turbine foundation comprises a pile cap (1) cast from reinforced concrete in the shape of an inverted drum, the pile cap comprising an outer cylinder (9), an inner cylinder (10) and radial walls (11) arranged radially on the outer surface of the inner cylinder (10) to connect the inner cylinder (10) with the outer cylinder (9) forming a monolithic rigid cover plate. A cover plate (12) covers the top surface of the pile cap (1) forming a closed chamber between the cover plate (12), the outer cylinder (9), the inner cylinder (10) and the radial walls (11) allowing for vacuum suction when the pile cap (1) is placed on a seabed foundation. An adapter tower (2) is connected to the top surface of the pile cap (1). An upper pile segment (3) is connected to the bottom surface of the pile cap (1) and a lower pile segment (4) is inserted inside the upper pile segment (3); an upper anchoring cable (6) connects the pile cap (1) to the upper end of the adapter tower (2) and a lower anchoring cable (5) connects the pile cap (1) to the upper pile segment (3).

This utility model discloses a rotating mop bucket, belonging to the field of mop buckets. It includes a lower bucket for containing wastewater, an upper bucket positioned above the lower bucket, and a rotating drive device. The upper bucket has a washing chamber for accommodating the rotating mop for cleaning, a spin-drying chamber for wringing out the rotating mop, and a clean water chamber for containing clean water. The spin-drying chamber is connected to the lower bucket. The washing and spin-drying chambers are independently configured, with the bottom of the clean water chamber higher than the bottom of the washing chamber. The bottom of the clean water chamber has a clean water outlet for supplying water to the washing chamber. After the clean water chamber is filled with water, it acts as a temporary closed chamber. Clean water automatically flows into the washing chamber from the clean water outlet. When the liquid level in the washing chamber rises to be level with the clean water outlet, the clean water chamber is resealed, allowing the clean water chamber to supply a measured amount of water to the washing chamber. The advantages of this utility model are the separation of clean and dirty water, ensuring that the water used to wash the mop head is relatively clean each time. The automatic and measured water dispensing eliminates the need for manual water filling or the use of a water pump.

The utility model discloses a high-speed rail bogie monitoring device, which comprises a mounting seat; the camera is detachably connected to the mounting seat through an elastic connecting piece, and a buffer piece is arranged between the camera and the mounting seat; and the protective cover is detachably connected with the mounting seat, and the protective cover is connected with the mounting seat in a sealing manner and forms a closed cavity for accommodating the camera in an enclosing manner. According to the utility model, the buffer piece is arranged between the mounting seat and the camera, so that the acting force of vibration and impact transmitted to the camera can be weakened, the failure rate of the camera is reduced, and the monitoring effect of the monitoring equipment on the high-speed rail bogie is improved; the camera is connected with the mounting seat through the elastic piece, so that the convenience of dismounting the camera is improved, the flexible connection between the camera and the mounting seat is realized, and the buffering effect on vibration and impact is ensured.

Disclosed in the present invention is a furnace tube, comprising an outer furnace tube, an inner furnace tube, an upper furnace cover and a lower furnace door, wherein the inner furnace tube is mounted in the outer furnace tube; both an upper end and a lower end of the inner furnace tube are open; a connecting member for hoisting connection is provided at an opening at the upper end of the inner furnace tube, and a support platform for mounting a support base is provided at an opening at the lower end of the inner furnace tube, such that the inner furnace tube can be hoisted downwards from the top of the outer furnace tube to be mounted inside the outer furnace tube, or inserted upwards from the bottom of the outer furnace tube to be mounted inside the outer furnace tube. In the present invention, the inner furnace tube is designed in a through manner, such that the inner furnace tube can be hoisted from the top and can also be inserted upwards for mounting from a bottom support, thus diversifying the mounting methods of the inner furnace tube. Moreover, carriers in the furnace tube are placed on a rotatable vessel support base, and the positions and angles of the carriers can be adjusted in the furnace, such that a gas field and a thermal field in a closed chamber are uniform, and the overall process yield is improved.

The application discloses a kind of reaction kettle temperature control device and reaction kettle, kettle body is equipped with jacket, feed pipe, discharge pipe, kettle body is provided with cooling pool, first pipeline, second pipeline outside, cooling pool is provided with cold liquid outlet and cold liquid outlet, cooling pool is provided with multiple cooling cylinders, cooling cylinder is vertically spaced apart between, cooling cylinder is closed chamber, stirring paddle is all provided in cooling cylinder, the upper portion of cooling cylinder is connected discharge pipe by first pipeline, the lower portion of cooling cylinder is connected the feed pipe of kettle body by second pipeline, pump body and first valve are provided on first pipeline, first valve is close to discharge pipe compared with pump body.The application replaces reaction kettle jacket or coil by using different pipeline to control cold and hot medium to replace, avoids the leakage problem caused by large temperature difference of equipment, improves safety and fast temperature control ability.

The invention discloses an inclined reaction furnace and a material box used in a chemical vapor deposition method, the inclined reaction furnace and the material box are mainly characterized in that a production device comprises the material box, a closed chamber, a material box conveying device and a discharging device, the closed chamber comprises an inlet end, an outlet end and a middle pipeline, the middle pipeline comprises an upper layer pipeline, and the upper layer pipeline comprises the inclined reaction furnace; an opening of the material box in the upper-layer pipeline is inclined upwards, the material box conveying device comprises a turnover device, the turnover device comprises an outlet turnover device, and the discharging device located at the outlet end comprises an outlet turnover device; the material box rotates from the upper-layer pipeline to the lower-layer pipeline at the outlet turnover device, at the moment, an opening of the material box is converted from upward to downward, and meanwhile, chemical reactants in the material box are discharged through the discharging device. The production device has the main advantages of being simple in structure, high in efficiency, low in energy consumption, safe, reliable and easy to maintain.