137 results about "Carbon dioxide laser" patented technology

The invention discloses a method for preparing a flexible electrode layer by using laser-induced graphene and the flexible electrode layer. The method comprises the following steps: preparing a laser-induced graphene pattern on the surface of a polymer by using a carbon dioxide laser; and coating flexible photosensitive resin on the surface of the polymer with the laser-induced graphene pattern, carrying out ultraviolet curing, and peeling off the cured flexible photosensitive resin and the laser-induced graphene pattern from the polymer film to obtain the LIGG and flexible photosensitive resin double-layer structure. The graphene pattern induced by laser is quickly, simply and conveniently transferred to the flexible photosensitive resin substrate by adopting an ultraviolet curing method, and the flexible electrode layer which can be bent, can be patterned, has excellent conductivity and is provided with the LIGG and flexible photosensitive resin layer structure is obtained.

The utility model discloses a preparation and filling system of an optical fiber bubble cavity alkali metal gas chamber, which comprises a sealing chamber, a carbon dioxide laser, a first displacement platform, a second displacement platform, an ultraviolet laser, an alkali metal simple substance, a vacuumizing device, an upper computer and a first gas cylinder filled with inert gas, the carbon dioxide laser, the first displacement platform, the second displacement platform, the ultraviolet laser and the alkali metal elementary substance are all arranged in the sealed cavity, and the vacuumizing device, the first gas cylinder and the upper computer are all arranged outside the sealed cavity; the vacuumizing device and the first gas cylinder are communicated to the sealed cavity, and the upper computer is connected with and controls the carbon dioxide laser, the first displacement platform, the second displacement platform and the ultraviolet laser. The preparation and filling system is used for preparing and filling the alkali metal air chamber of the optical fiber bubble cavity.

The invention belongs to the field of single crystal optical fiber preparation, and discloses a single crystal optical fiber growth device and method based on a hollow pentagonal prism. A beam splitter prism; a beam expanding system; a planar mirror; two spatial light debuggers; self-manufacturing a hollow pentagonal prism; a parabolic mirror; a rotating electrical machine system. According to the invention, the SLM is used for replacing a large-size conical lens, so that the light path adjustment difficulty is reduced; the beam splitter prism is introduced into the optical system, so that various single crystal optical fibers with different diameters can be grown at the same time, and the production efficiency is improved; the hollow pentagonal prism is used as a reflector of an optical system, so that the stability of an optical path is improved, and the high-quality single-crystal optical fiber is obtained.

The invention relates to the technical field of laser beam shaping, discloses an active test method and system for a circuit breaker, and is used for solving the problem that the self-adaptive shaping capability of a CO2 laser beam is difficult to improve by the existing method. Firstly, a stable light path is constructed, and the stability of the light path is ensured through mechanical limiting, a thermal management module and multi-stage optical alignment; then low-power calibration is carried out, a deformable mirror initial driving table is generated through a least square inversion algorithm, and a flat-topped beam reference is established; data are collected through a wavefront sensor, a high-order mode is reconstructed, the voltage of a deformable mirror is dynamically refreshed, and wavefront control and scanning motion synchronization is ensured in combination with scanning galvanometer time sequence synchronization, closed-loop control and exception handling; monitoring the temperature of the deformable mirror, starting water-cooling adjustment, and correcting the driving table to cope with the heat effect; finally, a safety system is constructed, laser power, wavefront distortion and deformable mirror stroke parameters are monitored, dry gas purging is conducted on the diffractive optical element regularly, and safety guarantee and performance verification of the whole process are achieved.

The invention relates to a self-adhesion breathable laser-induced graphene film and a preparation method thereof. The self-adhesion breathable laser-induced graphene film is used for electromyographic signal detection. The method comprises the following steps: mixing a PDMS stock solution and a curing agent, coating a PET film with the mixture, covering a PI film, and curing to form the base plate. Then, PI powder and a PDMS solution are mixed, a curing agent and polyethylene glycol are added to adjust the adhesiveness, the mixture is dropped into a base plate after dilution, and vacuum defoaming and spin coating are conducted. The preparation method comprises the following steps: preparing a PEG film, inserting a micro-needle template, curing, pouring an Ecoflex solution, curing again, pulling out the micro-needle template to obtain a PI / PDMS / PEG film with breathability and self-adhesion, performing laser engraving by using a carbon dioxide laser to generate laser-induced graphene, and finally obtaining the self-adhesion breathable laser-induced graphene film. According to the membrane, human body surface electromyogram signals are collected by utilizing the characteristics of high conductivity and low signal-to-noise ratio of laser-induced graphene, the adhesion is adjusted through polyethylene glycol, the air permeability is realized through a microneedle template method, the application scene of a device is expanded, and an electrode patch capable of monitoring for a long time is provided for human body physiological signal detection.

The invention discloses a method for preparing a polyphenylene sulfide-based membrane electrode in situ, which comprises the following steps: carrying out plasma treatment on polyphenylene sulfide cloth, soaking the polyphenylene sulfide cloth in an acid solution or an alkaline solution, cleaning and drying to obtain a hydrophilic polyphenylene sulfide membrane; then, a layer of PAN or PVP solution doped with rare earth ions or iron element ions is poured on the surface of the hydrophilic polyphenylene sulfide diaphragm, and after drying, the composite polyphenylene sulfide diaphragm is obtained; and performing laser engraving on the PAN or PVP polymer layer containing rare earth ions or iron-series element ions in the composite polyphenylene sulfide diaphragm by utilizing carbon dioxide laser engraving to form rare earth ion or iron-series element ion doped graphene, thereby obtaining the polyphenylene sulfide-based membrane electrode for alkaline electrolyzed water. The method has the advantages of low requirement on temperature, simplicity, feasibility, safety, controllability and low energy consumption, the electrode material is generated on the surface of the membrane in situ, and the possibility that the electrode falls off in the later use process is reduced.

The invention discloses an explosive detection device based on a high-collimation laser irradiation optical beam expanding system. The explosive detection device comprises a fixed base, and a carbon dioxide laser, a first-stage light beam expanding system and a second-stage light beam expanding system are installed on the fixed base; a light beam emitted by the carbon dioxide laser enters the first-stage light beam expansion system, and an exit pupil of the first-stage light beam expansion system is an entrance pupil of the second-stage light beam expansion system; light beams emitted by the secondary light beam expansion system form detection laser beams, and a detection station is further installed and used for placing an object to be detected; the fixed base is also provided with an infrared camera and a visible light camera, and the infrared camera and the visible light camera are used for shooting the object to be detected; the system further comprises an image analysis system, and the infrared camera and the visible light camera are connected with the image analysis system and carry out signal transmission. In the invention, the explosive detection device based on the high-collimation laser irradiation optical beam expanding system can be widely applied to safety inspection of explosives.

The invention discloses a laser processing method and a glass product. The laser processing method comprises the steps that a glass plate is subjected to laser modification along a preset contour track, a preset chamfer contour formed by multi-focus distribution is formed in the glass plate through laser, and the preset chamfer contour transversely penetrates through the glass plate; a carbon dioxide laser is adopted to perform laser expansion cracking on the glass plate along a preset contour track; wherein the coincidence tolerance of the laser expanding and cracking track and the laser modification track is not greater than 0.5 mm. Through the mode, the laser processing method provided by the invention can greatly improve the overall production efficiency of the glass product.

The invention discloses a method for analyzing laser polishing residual stress of fused quartz through multi-field coupling. The method comprises the steps that temperature fields at all moments in the laser polishing process of the fused quartz are obtained through numerical simulation analysis of an equivalent heat conduction coefficient of carbon dioxide laser fusion polishing of the constructed fused quartz; a step of obtaining a hypothetical temperature field representing the fused quartz structure at each moment through numerical simulation analysis of the equivalent structure relaxation time constant of the constructed fused quartz carbon dioxide laser melting polishing; and carrying out numerical simulation analysis through the equivalent thermal expansion coefficient of the constructed frozen temperature field to obtain the residual stress field after fused quartz carbon dioxide laser fusion polishing. The influence of a series of complex physical processes involved in fused quartz carbon dioxide laser melting polishing is avoided, the residual stress is evaluated from fused quartz laser polishing parameters simply and efficiently, and the method is particularly suitable for fused quartz element laser polishing parameter design and residual stress control with extremely high surface quality requirements.

The invention relates to the technical field of radio frequency power supply intelligent control, and particularly discloses a radio frequency power supply intelligent control method and system of a carbon dioxide laser. The method comprises the following steps of S1, establishing a radio-frequency power supply database of a laser, S2, analyzing the output performance of a radio-frequency power supply, S3, evaluating the output performance of the radio-frequency power supply, S4, analyzing the light beam gathering effect of the laser, S5, evaluating the light beam gathering effect of the laser, S6, controlling the radio-frequency power supply of the laser, and S7, controlling the radio-frequency power supply of the laser. Step S8, establishing a radio frequency power supply control index model of the laser; and step S8, carrying out user interface interaction. Fine adjustment of the output performance parameters of the radio-frequency power supply and the beam gathering effect parameters of the laser is realized through an intelligent algorithm, the stability of the output performance and the beam gathering effect of the laser is remarkably improved, intelligent control of the radio-frequency power supply is realized, and the automation degree of the laser is improved.

The application discloses a kind of carbon dioxide laser pulse signal quality detection and anti-interference control method and system, it is related to the field of device using stimulated emission, this method includes: when enabling effective state indication is effective, external pulse width modulation signal is sampled, and the sequence of multiple-point sampling buffer is obtained, the rising edge and the falling edge of external pulse width modulation signal are determined, and the pulse period measurement value and the pulse width measurement value of current pulse are calculated;Determine the preset duty cycle interval to which the duty cycle of current pulse belongs, and generate a duty cycle interval flag;Measure power measurement value, and compare with the proportional threshold value generated based on current pulse width measurement value, to determine power abnormal state;When power abnormal state is abnormal, determine shielding period in preset mapping table according to duty cycle interval flag, generate protection control signal, and perform anti-interference control to laser. By implementing the present application, abnormal detection and anti-interference control of laser output in a larger duty cycle range can be realized.

The invention relates to a laser overpower protection device for a carbon dioxide laser therapeutic instrument. The control system is used for selecting and controlling the output power and the working mode of the laser and selecting a corresponding protection threshold value according to the output power and the working mode; the acquisition module is used for acquiring the real-time output power of the laser; and the protection system is used for receiving the protection threshold value sent by the control system, comparing the protection threshold value with the real-time output power of the laser device acquired by the acquisition module, and controlling the output of the laser device. According to the invention, a set of special protection system is added in the equipment, the laser output power is divided according to a fixed percentage to be used for monitoring the protection system, and when the laser power is monitored to exceed a set threshold value, the protection system acts to cut off the power supply of the laser in the equipment, so that the effect of rapidly stopping the laser overpower output is achieved.

The present invention relates to the technical field of lasers, in particular to a carbon dioxide laser with an adjustable support device, which includes a water-cooling tube and a gas storage tube sleeved outside the water-cooling tube. A first support assembly and a second support assembly are sequentially sleeved and connected outside the water-cooling tube. The first support assembly and the second support assembly jointly support the water-cooling tube. The first support assembly is supported and connected to the gas storage tube through a first support leg, and the second support assembly is supported and connected to the gas storage tube through a second support leg. The first support assembly moves relative to the second support assembly along the length direction of the water-cooling tube. The carbon dioxide laser with an adjustable support device in this application avoids the situation that the overall damage of the carbon dioxide laser occurs due to the breakage of the connection between the first support leg or the second support leg and the gas storage tube or the water-cooling tube, increases the yield rate of the carbon dioxide laser, reduces the requirements for its use environment, and greatly expands the use range of the carbon dioxide laser.

The invention discloses a preparation method of a high-sensitivity room-temperature flexible hydrogen sulfide gas sensor, which comprises the following steps: preparing a laser-induced graphene interdigital electrode in one step by using a carbon dioxide laser, depositing tungsten trioxide microspheres on the surface of LIG by using a film pressing technology so as to construct the hydrogen sulfide gas sensor, and forming a P-N heterojunction with the LIG, thereby obtaining the high-sensitivity room-temperature flexible hydrogen sulfide gas sensor. The response amount of the sensor is greatly improved through the heterojunction structure, the theoretical detection limit is as low as 774 ppt, and the actual detection limit is 3 ppb. The preparation method of the high-sensitivity room-temperature flexible hydrogen sulfide gas sensor provided by the invention has the advantages of high sensitivity, working at room temperature, low detection limit and long-term stability of more than seven months, and can be widely applied to the field of wearable gas monitoring.

The utility model provides a polishing device for a molybdenum reflector of a carbon dioxide laser, which relates to the technical field of polishing devices and comprises a conveying mechanism, and a polishing mechanism is fixedly mounted at the top of the conveying mechanism. When the molybdenum reflector polishing device is used, under the action of the polishing mechanism, after the molybdenum reflector is fixed and conveyed to a proper position, the fixed column is driven to rotate by a certain angle under the action of the second motor; meanwhile, a first transmission wheel is driven to rotate under the action of a third motor, an annular frame is driven to rotate to a proper angle under the action of a second transmission wheel, and finally a meshing wheel is driven to rotate under the action of a fourth motor; by means of the structure and the method, the angle of the polishing machine can be adjusted in multiple modes, the polishing machine can polish the surface of the molybdenum reflector more evenly, and therefore the optical performance of the molybdenum reflector is improved.

A process for forming silicon by reducing silica and / or passivated silicon, the process comprising the following steps: - feeding silane to a reactor (2) placed under an inert atmosphere; - feeding silica and / or passivated silicon to the reactor (2) to obtain a mixture formed by the silane and the silica and / or passivated silicon; - applying a carbon dioxide laser beam (6a) to said mixture for the formation of silicon and water in the reactor (2); and - recovering the silicon obtained. Figure for the abstract: Fig 1

The utility model discloses a two-fold carbon dioxide laser support, which relates to the technical field of laser supports, and adopts the technical scheme that the two-fold carbon dioxide laser support comprises a two-fold carbon dioxide laser body, two fixed support assemblies are sleeved outside the two-fold carbon dioxide laser body, and each fixed support assembly comprises a support base device; the two-fold carbon dioxide laser support comprises a support base device, a support fixing device is arranged at the top of the support base device, and an adjusting unit is connected between the support base device and the support fixing device. The rotating wheel is rotated, the rotating wheel rotates to drive the threaded column to rotate, the threaded column rotates to enable the lower fixing block to move longitudinally through threaded fit with the threaded groove, then the two-fold carbon dioxide laser body moves longitudinally, and the longitudinal position of the two-fold carbon dioxide laser body is finely adjusted.

The present invention relates to the technical field of heat treatment. A heat treatment device, comprising a furnace, which has an observation window opened on the furnace body and quartz glass inlaid in the observation window; further comprising an industrial personal computer. The industrial personal computer is connected to an infrared temperature imager and a first pan-tilt unit; the first pan-tilt unit is arranged outside the furnace body, and the infrared temperature imager is mounted on the first pan-tilt unit, the infrared temperature imager facing the quartz glass. A light-transmitting window is opened on the furnace body of the furnace. The industrial personal computer is connected to a second pan-tilt unit and a carbon dioxide laser; the carbon dioxide laser is fixed on the second pan-tilt unit, a light outlet of the carbon dioxide laser facing the light-transmitting window. The industrial personal computer uses the infrared temperature imager to capture temperature imaging of a workpiece being processed, identifies a low-temperature region on said workpiece, adjusts the carbon dioxide laser to face the low-temperature region, and starts the carbon dioxide laser to provide supplementary heating.

The utility model relates to the technical field of carbon dioxide laser treatment, in particular to a carbon dioxide laser therapeutic instrument which comprises a machine shell, one side of the top end of the machine shell is in threaded connection with a light guide arm, a touch control screen is embedded in the top end of the machine shell, and a laser power source is installed in the machine shell. A control panel is installed in the machine shell and located on one side of the laser power source, and a circulating cooling mechanism is further arranged in the machine shell. The water tank is made of transparent acrylic, the water level of the water tank can be observed through the front window of the machine shell, when water needs to be added, the funnel is inserted into the water inlet, the water filling function is achieved through the funnel, the ventilation valve is arranged on the water tank and has the function of ventilation and watertightness, and the situation that water cannot be injected due to the fact that a water tank circulation system is a closed system is prevented. Meanwhile, drainage can be completed through the water outlet, and the problem that according to an existing therapeutic apparatus, water injection and drainage are not convenient to conduct in a closed water tank in a closed machine box is solved.

The utility model relates to the technical field of carbon dioxide laser therapeutic instruments, in particular to a water circulation heat dissipation system of a carbon dioxide laser therapeutic instrument, which comprises a case, a display screen is mounted at the top end of the case, a control panel is embedded in the case, and a water circulation heat dissipation mechanism is mounted in the case. The water circulation heat dissipation mechanism comprises a water tank, a water pump, a water flow switch and a laser tube, the water tank is installed on the surface of the case through an installation hoop, the water pump and the water flow switch are fixed to the inner wall of the case through bolts, and the water outlet end of the water pump communicates with the water inlet end of the water flow switch through a pipeline; and a laser tube is arranged on one side of the water flow switch. According to the utility model, the water flow switch is used for displaying and alarming, and laser emission operation cannot be carried out, so that laser emission cannot be carried out in all operations when no water circulation exists in the laser tube.

The invention discloses a carbon dioxide laser safety protection method and system based on directional coupling, and relates to the field of devices utilizing stimulated emission, and the method comprises the steps: collecting a forward signal outputted by a power supply of a carbon dioxide laser and a reverse signal reflected by a load through a directional coupler, and determining a forward voltage and a reverse voltage; calculating a reflection coefficient according to the forward voltage and the backward voltage, and calculating a voltage standing wave ratio according to the reflection coefficient; collecting audio data in the operation process of the carbon dioxide laser through an audio sensor, and extracting to obtain audio features; when the voltage standing wave ratio exceeds a normal operation threshold value, determining a first fault judgment result based on the voltage standing wave ratio; the audio features are matched with a preset fault feature library, and a second fault judgment result is determined; and based on the first fault determination result and the second fault determination result, generating a fault processing instruction and executing the fault processing instruction. According to the invention, the equipment maintenance efficiency can be improved.

To solve the problem with complexity of production and increased cost and the problem with energy consumption, in a current method for production of hydrogen with a carbon dioxide laser.SOLUTION: A production method of low-carbon hydrogen according to the present invention includes the steps of: (a) drying waste silicon slurry; (b) crushing and selecting the dried waste silicon slurry to give 40 to 95 percent by weight (wt.%) of silicon oxide in which metal silicon accounts for 5 wt.% to 40 wt.% of a silicon oxide content; and (c) reacting the silicon oxide with an aqueous alkali metal solution by mixture with a reaction temperature controlled between 100°C and 150°C to thereby give hydrogen.SELECTED DRAWING: Figure 1

The invention discloses a radio-frequency pulse power supply for a radio-frequency carbon dioxide laser, and the power supply comprises an input unit which inputs a radio-frequency signal; the first-stage power amplification unit is used for receiving the radio frequency signal, amplifying power and outputting a first-stage amplified radio frequency signal; the first-stage power distribution unit receives the first-stage amplification radio frequency signal and equally divides the first-stage amplification radio frequency signal into two paths of first-stage distribution radio frequency signals with the same power for output; the second-stage power distribution units are arranged in pairs, receive the first-stage distribution radio-frequency signals, uniformly divide the first-stage distribution radio-frequency signals into two paths of second-stage distribution radio-frequency signals with the same power through voltage reduction and transformation, and output the two paths of second The second-stage power amplification unit receives one path of second-stage distribution radio frequency signal, amplifies power and outputs a second-stage amplification radio frequency signal; the power synthesis unit is used for receiving the four paths of secondary amplification radio-frequency signals and synthesizing the four paths of secondary amplification radio-frequency signals into high-power radio-frequency signals for output through boost transformation; and the output unit receives and outputs the high-power radio frequency signal. Through multi-stage amplification and multi-stage synthesis, pulse signal output with hundreds of watts to kilowatt peak power is realized.

The utility model relates to the technical field of laser treatment equipment, and discloses a carbon dioxide laser treatment device, which comprises a movable base; the host is arranged above the movable base, the host is fixedly connected with the movable base, and a laser emission module is arranged in the host; the light guide treatment module is arranged above the host, one end of the light guide treatment module penetrates through the outer side wall of the host to be communicated with the laser generation module, and the light guide treatment module is used for guiding the laser emitted by the laser emission module to a preset skin treatment area according to a preset light guide path; the cooling module is arranged in the host, one end of the cooling module is connected with the inner bottom surface in the host, the other end of the cooling module is connected with the laser emission module, and the cooling module is used for cooling the operation temperature when the laser emission module emits laser. According to the utility model, through combination and cooperation of all the modules, accurate laser guidance and efficient heat dissipation are effectively realized, so that the treatment effect and the reliability of the equipment are improved.

The utility model discloses a carbon dioxide laser cutting machine which comprises a shell, and an X-axis cross beam is installed in the shell in the transverse direction. The laser tube is mounted on the back surface of the shell; the motor is installed at one end of the X-axis cross beam, the laser cutting head is movably arranged on the X-axis cross beam, and laser generated by the laser tube is transmitted to the laser cutting head; the motor drives the laser cutting head to move along the X-axis cross beam, and the laser cutting head cuts a plate below in the moving process; the water tank is arranged at the end part of the shell, and the water drain is arranged in the shell and is positioned right below the laser tube; the water tank conveys cold water into the water row, the cold water in the water row exchanges heat with air around the laser tube, and the laser tube is cooled.

The utility model relates to the technical field of carbon dioxide laser cutting equipment, in particular to a laser cutting equipment reflector path detection system which comprises a connecting seat and a switching device. The switching device comprises a supporting seat fixedly installed on the rack, two exchange devices of the same structure are installed on the supporting seat in a sliding mode, and the two exchange devices are fixedly connected through a connecting plate; wherein a test part for detecting an external light path is fixedly mounted in one exchange device, and the other exchange device is used for taking the laser head out of the connecting seat; a driving part for driving the two exchange devices to move synchronously is arranged on the supporting seat, and the laser head is taken down from the connecting seat through one exchange device. And then the test component is installed in the connecting seat through the other replacement device, and the laser in the test component is started to directly penetrate through the laser drop point on each reflecting mirror. Whether the current position of the reflector is adjusted or not is clearly and directly judged; and timely adjustment is realized.

The utility model discloses a multi-core carbon dioxide laser with high response speed, which comprises a gas storage tube, a plurality of discharge tubes are arranged in the gas storage tube, water cooling tubes are hermetically arranged on the peripheries of the discharge tubes, one end part of each discharge tube is connected with a gas return tube, the discharge tubes are communicated with the gas storage tube through the gas return tubes, and the gas storage tube is communicated with the water cooling tubes through the water cooling tubes. One end of the discharge tube is provided with an anode binding post, and the other end of the discharge tube is provided with a cathode binding post. According to the multi-core carbon dioxide laser, the response speed of the laser can be greatly improved by adopting a novel air return pipe structure, and the multi-core carbon dioxide laser can be universally applied to the fields of high-power scanning, quick start and stop and the like.

The present invention belongs to the technical field of carbon dioxide lasers, and specifically relates to an intelligent radio frequency carbon dioxide laser with a lens adjustment function, comprising a housing, a slide rail is arranged inside the housing, a lens assembly and a plurality of optical assemblies are slidably connected to the slide rail; a displacement mechanism, the lens assembly and the plurality of optical assemblies are respectively moved along the slide rail by the displacement mechanism; and a dust removal mechanism is used to absorb impurities such as dust. The present invention can drive different adjustment parts through the displacement mechanism to adjust the positions of the corresponding lens assembly and the plurality of optical assemblies in the housing, so as to facilitate the adjustment of the light spot size, avoid the need to disassemble and assemble the housing during adjustment, improve the convenience of light spot adjustment, and can absorb the impurities raised when the lens assembly moves through the dust removal mechanism and clean the absorbed impurities as the lens assembly moves, so as to improve the reliability of light spot adjustment.

The carbon dioxide waveguide laser includes an elongated resonator unit and an elongated power supply unit. The resonator and the power supply unit are separated by a cooling unit comprising a plurality of longitudinally extending, spaced apart fins, and the fan is arranged to drive air through a space between the fins.

The utility model discloses a carbon dioxide laser with a discharge tube supporting structure, which relates to the technical field of lasers and comprises a gas storage tube, a water cooling tube, a discharge tube, a spiral supporting plate and an elastic supporting blade. A sealing cavity is formed between the water-cooling pipe and the discharge pipe, a water inlet pipe and a water outlet pipe are fixed to the side wall of the water-cooling pipe and are both connected with the side wall of the gas storage pipe in a penetrating mode, the spiral supporting plate is located in the sealing cavity and coaxially arranged on the outer side wall of the discharge pipe in a sleeving mode, the two ends of the spiral supporting plate are arranged in a staggered mode, and one end of the spiral supporting plate is fixed to the inner side wall of the water-cooling pipe. The other end of the spiral supporting plate is fixed on the outer side wall of the discharge tube, and the spiral supporting plate has elasticity along the axis direction of the discharge tube; one end of each elastic supporting blade is fixed on the side wall of the spiral supporting plate, and the other end of each elastic supporting blade abuts against the inner side wall of the water-cooled tube, so that the discharge tube can be prevented from being damaged by impact in the length direction or the radial direction of the laser in the normal use and transportation process of the carbon dioxide laser.