Carbon dioxide laser tube

Abstract

The utility model discloses a carbon dioxide laser tube. A discharge tube is arranged in a gas storage tube; the reflector I and the light-transmitting piece are mounted at two ends of the gas storage pipe; the discharge tube is provided with a heat exchange cavity which can be connected with a cooling-water machine; the gas return pipe sleeves the discharge tube and one end of the gas return pipe is communicated with the discharge tube; one end of the positive conductive piece and one end of the negative conductive piece are arranged in the discharge tube; a valve I is connected in series between the vacuum tank and the gas storage pipe; a valve II is connected in series between the gas storage tank and the gas storage pipe; the gas storage tank and the gas storage pipe are filled with the same gas, and the gas pressure in the gas storage tank is higher than that in the gas storage pipe. When the air pressure in the air storage pipe is reduced or impurities are mixed in the air storage pipe, the valve I is opened, and the air in the air storage pipe can be sucked into the vacuum tank; when the valve II is opened, the gas in the gas storage tank can be filled into the gas storage pipe, so that the gas in the gas storage pipe is supplemented; according to the design, the service life of the carbon dioxide laser tube can be prolonged, and inflation and ventilation operation of the gas storage tube is simple.

Description

Technical Field

[0001] The utility model relates to the field of laser equipment, and more specifically to a carbon dioxide laser tube. Background Art

[0002] A CO2 laser tube is a type of laser that primarily provides a laser source for laser cutting, engraving, and marking. Its working principle is to excite the gas through electric current, causing the CO2 molecules to undergo energy transitions and release laser light.

[0003] Existing CO2 laser tubes are disposable. After a period of use, the gas in the gas storage tube decreases or impurities are mixed in, causing the laser output power of the laser tube to decrease and unable to meet normal production requirements. The service life of existing CO2 laser tubes is basically determined by the degree of consumption of the internal gas. Existing CO2 laser tubes are expensive to replace and difficult to refill.

[0004] Therefore, how to provide a carbon dioxide laser tube that can overcome the above problems is an urgent problem that those skilled in the art need to solve. Utility Model Content

[0005] In view of this, the utility model provides a carbon dioxide laser tube.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A carbon dioxide laser tube comprises: a gas storage tube, a discharge tube, a first reflector, a light-transmitting member, a gas return tube, a positive conductive member, a negative conductive member, a vacuum tank, a gas storage tank, a first valve, and a second valve, wherein each end of the gas storage tube is provided with a connecting port; the discharge tube is arranged in the gas storage tube, one end of the discharge tube is sealed and fixed to one end of the gas storage tube, and the connecting port is limited inside the discharge tube; the two connecting ports are each blocked by the first reflector and the light-transmitting member, the first reflector reflects the laser in the discharge tube to the light-transmitting member, and the laser in the discharge tube can pass through the light-transmitting member; the side wall of the discharge tube is provided with a heat exchange cavity with a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are respectively connected to the water outlet and the water inlet of the chiller; the spiral gas return tube is sleeved with On the discharge tube, one end of the return gas pipe is free and the other end is fixed to and connected to the discharge tube; one end of the positive conductive member and one end of the negative conductive member are both arranged inside the discharge tube, and the positive conductive member and the negative conductive member can be connected to the positive and negative poles of an external power supply respectively. The discharge end of the positive conductive member is located between the free and fixed ends of the return gas pipe, and the heat exchange chamber is located between the positive and negative conductive members; the vacuum tank is connected to the gas storage pipe, and the valve 1 is connected in series therebetween; the gas tank is connected to the gas storage pipe, and the valve 2 is connected in series therebetween; the air pressure in the vacuum tank is lower than the air pressure in the gas storage pipe, the gas tank and the gas storage pipe are filled with the same gas, and the air pressure in the gas tank is higher than the air pressure in the gas storage pipe.

[0008] It can be seen from the above technical solution that, compared with the prior art, the present invention provides a carbon dioxide laser tube. The present invention is designed with a vacuum tank and valve one. When the air pressure in the gas storage tube decreases or is mixed with impurities, the valve one is opened and the gas in the gas storage tube is sucked into the vacuum tank. The gas storage tank and valve two are designed. When the valve one is opened for a period of time and then closed, the valve two is opened and the gas in the gas tank is filled into the gas storage tube, thereby replenishing the gas in the gas storage tube. The above design can increase the service life of the carbon dioxide laser tube, and the filling and ventilation operations of the gas storage tube are simple, which greatly saves the maintenance and replacement costs of the carbon dioxide laser tube.

[0009] Preferably, the device further comprises a light guide tube and a second reflector. There are multiple light guide tubes and multiple reflector 2s, and each light guide tube has two second reflectors fixed inside it. The light guide tubes are open at both ends. There are multiple gas storage tubes, and the multiple gas storage tubes are arranged side by side. The multiple gas storage tubes are connected end to end through the multiple light guide tubes, and each gas storage tube has a discharge tube arranged in it. One end of the gas storage tube at the head end is provided with a light guide tube, and the other end is provided with the first reflector. One end of the gas storage tube at the tail end is provided with a light guide tube, and the other end is provided with the light-transmitting member. Each of the two adjacent discharge tubes corresponds to the position of the two second reflectors in the light guide tubes connected to them. The laser beam in one of the two adjacent discharge tubes can be reflected by the two second reflectors in the same light guide tube to the other discharge tube. Multiple discharge tubes can achieve optical path conduction, thereby improving the laser output power of the entire carbon dioxide laser tube.

[0010] Preferably, a plurality of lens cooling elements are further included, and the first reflector, the light-transmitting element, and the plurality of second reflectors are closely fixed to the cooling ends of the plurality of lens cooling elements, so that the first reflector, the light-transmitting element, and the plurality of second reflectors can all be reliably cooled.

[0011] Preferably, the lens cooling element includes a heat exchange container having an inlet and an outlet; the back surface of the first reflector, one end wall of the light-transmitting element, and the back surfaces of the plurality of second reflectors are each tightly fixed to one end wall of the plurality of heat exchange containers; a heat exchange container is connected in series with each water inlet pipe and the water outlet of the chiller, and a heat exchange container is connected in series with each water outlet pipe and the water inlet of the chiller; the heat exchange container connected to the light-transmitting element is provided with a light-transmitting hole, and the centerline of the discharge tube corresponding to the light-transmitting element is collinear with the centerline of the light-transmitting hole, so that a laser beam passing through the light-transmitting element can pass through the light-transmitting hole. The cooling effect of the first reflector, the light-transmitting element, and the plurality of second reflectors is good, and the cooling structure is simple and reliable.

[0012] Preferably, multiple vacuum tanks and multiple gas storage tanks are provided, with one vacuum tank and one gas storage tank fixedly connected between each two adjacent gas storage pipes. Each vacuum tank interface is equipped with one valve 1, and each gas storage tank interface is equipped with one valve 2. By designing multiple vacuum tanks, gas from multiple gas storage pipes can be smoothly pumped into multiple vacuum tanks, and the multiple valve 1s allow the amount of gas pumped from the gas storage pipes to be controlled. By designing multiple gas storage tanks, multiple gas storage pipes can be effectively filled with gas, with the air pressure within the gas storage pipes reaching a specified range. Furthermore, by designing multiple valves 2, the amount of gas in the gas storage pipes can be controlled.

[0013] Preferably, the included angle between the mirror surfaces of the two second reflectors located within the same light guide is 90 degrees, the centerlines of the two gas storage tubes connected to the same light guide jointly define a reference plane, and the mirror surface of the second reflector is perpendicular to the reference plane. Multiple discharge tubes can achieve reliable light path conduction.

[0014] Preferably, the positive electrode conductive member includes a metal tube, a metal sleeve, an elastic metal plug and a wire, the metal tube is coaxially arranged in the discharge tube, the metal tube is located between the free end and the fixed end of the return gas pipe; the metal sleeve is open at one end and closed at the other end, and the closed end of the metal sleeve is fixed to the gas storage pipe; the elastic metal plug is located outside the gas storage pipe, the elastic metal plug can be inserted into the metal sleeve, the outer wall of the elastic metal plug can be pressed against the inner wall of the metal sleeve and electrically conductive, and the elastic metal plug can be electrically connected to the positive electrode of an external power supply; one end of the wire is fixed to the metal tube and electrically conductive, and the other end of the wire is fixed to the metal sleeve and electrically conductive; the negative electrode conductive member includes a metal tube, a metal sleeve, an elastic metal plug and a wire. The invention relates to a second plug and a second wire, wherein the second metal tube is coaxially arranged in the discharge tube; the second metal sleeve is open at one end and closed at the other end, and the closed end of the second metal sleeve is fixed to the gas storage tube; the second elastic metal plug is located outside the gas storage tube, and the second elastic metal plug can be inserted into the second metal sleeve, and the outer wall of the second elastic metal plug can be tightly pressed against the inner wall of the second metal sleeve and electrically conductive, and the second elastic metal plug can be electrically connected to the negative pole of an external power supply; one end of the second wire is fixed to the second metal tube and electrically conductive, and the other end of the second wire is fixed to the second metal sleeve and electrically conductive; the heat exchange chamber is located between the first metal tube and the second metal tube; the laser beam in the discharge tube can pass through the first metal tube and the second metal tube; the first metal tube is located between the free end and the fixed end of the return air pipe. The positive conductive member and the negative conductive member can be electrically connected to an external power source quickly and reliably. The metal tubes 1 and 2 can discharge reliably while not hindering the propagation of laser light in the discharge tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0016] Figure 1It is an overall axonometric drawing of a CO2 laser tube;

[0017] Figure 2 A partial axonometric cross-section of a CO2 laser tube Figure 1 ;

[0018] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0019] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0020] Figure 5 A partial axonometric cross-section of a CO2 laser tube Figure 2 ;

[0021] Figure 6 The present invention is a schematic diagram of an elastic metal plug and a metal sleeve in a carbon dioxide laser tube.

[0022] In the figure:

[0023] 01 is the gas storage tube, 02 is the discharge tube, 020 is the heat exchange chamber, 021 is the water inlet pipe, 022 is the water outlet pipe, 03 is the reflector 1, 04 is the light-transmitting part, 05 is the return air pipe, 06 is the metal tube 1, 07 is the metal sleeve 1, 08 is the elastic metal plug 1, 09 is the wire 1, 10 is the metal tube 2, 11 is the metal sleeve 2, 12 is the elastic metal plug 2, 13 is the wire 2, 14 is the vacuum tank, 15 is the gas storage tank, 16 is the valve 1, 17 is the valve 2, 18 is the light guide tube, 19 is the reflector 2, and 20 is the heat exchange container. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model discloses a carbon dioxide laser tube. The utility model is designed with a vacuum tank 14 and a valve 16. When the air pressure in a gas storage tube 01 decreases or is mixed with impurities, the valve 16 is opened, and the gas in the gas storage tube 01 is sucked into the vacuum tank 14. The utility model is designed with a gas storage tank 15 and a valve 2 17. When the valve 16 is opened for a period of time and then closed, the valve 2 17 is opened, and the gas in the gas storage tank 15 is filled into the gas storage tube 01, thereby replenishing the gas in the gas storage tube 01. The above design can extend the service life of the carbon dioxide laser tube, and the filling and ventilation operations of the gas storage tube 01 are simple, which greatly reduces the maintenance and replacement costs of the carbon dioxide laser tube.

[0026] By designing the light guide 18 and the second reflector 19, multiple gas storage tubes 01 are arranged side by side and the gas paths are connected in series, and the discharge tube 02 can realize the optical path in series, thereby improving the laser output power of the carbon dioxide laser tube;

[0027] By designing the lens cooling element, the reflector 1 03, the light-transmitting element 04 and the reflector 2 19 can be effectively cooled;

[0028] In this application, the discharge tube 02, the reflector 1 03, the light-transmitting element 04 and the reflector 2 19 are cooled by water cooling, which is simple and effective.

[0029] By designing the metal sleeve 107, the elastic metal plug 108, the metal sleeve 211 and the elastic metal plug 108, the positive and negative conductive parts are connected to the power supply in a simple, fast and reliable manner. When connecting the power, it is only necessary to insert the elastic metal plug 108 into the metal sleeve 107 and the elastic metal plug 212 into the metal sleeve 211.

[0030] Example

[0031] See attached Figure 1-6 The figure is a schematic diagram of the overall and partial structures of an embodiment of the present invention. The present invention specifically discloses a carbon dioxide laser tube, including: a gas storage tube 01, a discharge tube 02, a reflector 1 03, a light-transmitting member 04, a gas return pipe 05, a positive conductive member, a negative conductive member, a vacuum tank 14, a gas storage tank 15, a valve 1 16, and a valve 2 17;

[0032] There is a connection port at each end of the gas storage pipe 01;

[0033] The discharge tube 02 is arranged inside the gas storage tube 01 and the two tubes have the same length direction. One end of the discharge tube 02 is sealed and fixed to one end of the gas storage tube 01, and the connection port is limited to the inner side of the discharge tube 02;

[0034] One connection port is blocked with a reflector 03, and the other connection port is blocked with a light-transmitting member 04. The mirror surface of the reflector 03 is perpendicular to the center line of the discharge tube 02 and faces the inside of the discharge tube 02. The reflector 03 can reflect the laser in the discharge tube 02 to the light-transmitting member 04, and the laser in the discharge tube 02 can pass through the light-transmitting member 04.

[0035] A heat exchange chamber 020 is integrally formed on the side wall of the discharge tube 02. The heat exchange chamber 020 is cylindrical and arranged coaxially with the discharge tube 02. A water inlet pipe 021 and a water outlet pipe 022 are fixed to the discharge tube 02, both of which are connected to the heat exchange chamber 020. The water inlet pipe 021 and the water outlet pipe 022 are arranged near the two ends of the discharge tube 02. The water inlet pipe 021 and the water outlet pipe 022 are respectively connected to the water outlet and water inlet of the chiller. The cold water output by the chiller can enter the heat exchange chamber 020, and the cold water entering the heat exchange chamber 020 can cool the discharge tube 02. The water flowing out of the heat exchange chamber 020 can flow back to the chiller for re-refrigeration.

[0036] The return air pipe 05 is located inside the gas storage pipe 01. The return air pipe 05 is spiral and coaxially sleeved on the discharge tube 02. One end of the return air pipe 05 is a free end and the other end is a fixed end. The fixed end of the return air pipe 05 is fixed to and connected with the discharge tube 02.

[0037] One end of the positive conductive member and one end of the negative conductive member are arranged inside the discharge tube 02 and are respectively arranged near the two ends of the discharge tube 02. The other end of the positive conductive member and the other end of the negative conductive member can be connected to the positive and negative poles of an external power supply respectively. The discharge end of the positive conductive member is located between the free end and the fixed end of the return air pipe 05; the heat exchange chamber 020 is located between the positive and negative conductive members.

[0038] The vacuum tank 14 and the gas storage tank 15 are both fixed on the outside of the gas storage pipe 01. The vacuum tank 14 is connected to the gas storage pipe 01 with a valve 16 connected in series therebetween. The gas storage tank 15 is connected to the gas storage pipe 01 with a valve 2 17 connected in series therebetween.

[0039] The air pressure in the vacuum tank 14 is lower than the air pressure in the gas storage pipe 01. The gas storage tank 15 and the gas storage pipe 01 are filled with the same gas, but the air pressure in the gas storage tank 15 is higher than the air pressure in the gas storage pipe 01. The gas storage tank 15 and the gas storage pipe 01 are mainly filled with carbon dioxide, nitrogen and helium.

[0040] More specifically, it also includes a light guide tube 18 and a second reflector 19. There are multiple light guide tubes 18 and two second reflectors 19. Each light guide tube 18 has two second reflectors 19 fixed inside it. The light guide tube 18 has openings at both ends. The ends of the light guide tube 18 are sealed and fixed to the ends of the gas storage tube 01. The connection port is limited on the inner side of the light guide tube 18.

[0041] In this embodiment, multiple gas storage tubes 01 are provided, and the multiple gas storage tubes 01 are arranged side by side. The multiple gas storage tubes 01 are connected end to end through multiple light guide tubes 18. That is, the multiple gas storage tubes 01 are connected by the multiple light guide tubes 18. A discharge tube 02 and a return gas tube 05 are arranged in each gas storage tube 01. A positive conductive member and a negative conductive member are installed on each gas storage tube 01.

[0042] A light guide tube 18 is arranged at one end of the gas storage tube 01 at the head end, and a reflector 1 03 is arranged at the other end; a light guide tube 18 is arranged at one end of the gas storage tube 01 at the tail end, and a light-transmitting member 04 is installed at the other end; each of the two adjacent discharge tubes 02 corresponds to the respective positions of the two reflectors 2 19 in the light guide tube 18 connected to the two discharge tubes 02; the laser beam in one of the two adjacent discharge tubes 02 can be reflected by the two reflectors 2 19 located in the same light guide tube 18 to the other discharge tube 02, that is, multiple discharge tubes 02 can achieve optical path conduction, and the laser light generated in the multiple discharge tubes 02 can all pass through the light-transmitting member 04.

[0043] To be more specific, it also includes multiple lens cooling parts, and the reflector 1 03, the light-transmitting part 04 and the multiple reflectors 2 19 are tightly fixed to the cooling ends of the multiple lens cooling parts. The lens cooling parts can cool the reflector 1 03, the light-transmitting part 04 and the reflector 2 19 by air cooling, liquid cooling and semiconductor cooling plates. In this embodiment, the reflector 1 03, the light-transmitting part 04 and the reflector 2 19 are cooled by water cooling.

[0044] More specifically, the lens cooling element includes a heat exchange container 20 having an inlet and an outlet;

[0045] The back surface of the reflector 1 03, one end wall of the light-transmitting member 04, and the back surfaces of the plurality of reflectors 2 19 are closely fixed to one end wall of the plurality of heat exchange containers 20;

[0046] A heat exchange container 20 is connected in series between each water inlet pipe 021 and the water outlet of the chiller, and a heat exchange container 20 is connected in series between each water outlet pipe 022 and the water inlet of the chiller. That is, water flowing out of a water outlet of the chiller flows through a heat exchange cavity 020 and two heat exchange containers 20 corresponding to the heat exchange cavity 020 before flowing to a water inlet of the chiller.

[0047] The heat exchange container 20 connected to the light-transmitting member 04 is made of metal, and the other heat exchange containers 20 are made of glass. A circular light-transmitting hole is centrally provided in the heat exchange container 20 connected to the light-transmitting member 04. The centerline of the discharge tube 02 corresponding to the light-transmitting member 04 is collinear with the centerline of the light-transmitting hole, so that the laser beam passing through the light-transmitting member 04 can pass through the light-transmitting hole.

[0048] There are multiple vacuum tanks 14 and gas storage tanks 15. A vacuum tank 14 and a gas storage tank 15 are fixedly connected between every two adjacent gas storage pipes 01. A valve 16 is installed at the interface of each vacuum tank 14, and a valve 2 17 is installed at the interface of each gas storage tank 15.

[0049] The included angle between the mirror surfaces of the two reflectors 19 located in the same light guide 18 is 90 degrees. The center lines of the two gas storage tubes 01 connected to the same light guide 18 jointly define a reference plane. The mirror surface of the reflector 19 is perpendicular to the reference plane. The laser energy in one discharge tube 02 is transmitted to the other adjacent discharge tube 02 through the reflection effect of the two reflectors 19.

[0050] The positive electrode conductive member includes a metal tube 06, a metal sleeve 07, an elastic metal plug 08 and a wire 09. The metal tube 06 is coaxially arranged in the discharge tube 02 and is located between the free end and the fixed end of the return gas tube 05; the metal sleeve 07 is open at one end and closed at the other end, and the closed end of the metal sleeve 07 is fixed to the gas storage tube 01; the elastic metal plug 08 is located outside the gas storage tube 01 and can be inserted into the metal sleeve 07. The maximum cross-sectional area of ​​the outer wall of the elastic metal plug 08 is 100 mm. The outer wall of the elastic metal plug 08 can be elastically gathered together when the two are plugged in. On the one hand, the elastic metal plug 08 can be smoothly inserted into the metal sleeve 07. On the other hand, the outer wall of the elastic metal plug 08 can be tightly pressed against the inner wall of the metal sleeve 07 and electrically connected. The elastic metal plug 08 can be electrically connected to the positive electrode of the external power supply. One end of the wire 09 is fixed to the metal tube 06 and electrically connected. The other end of the wire 09 is fixed to the metal sleeve 07 and electrically connected.

[0051] The negative electrode conductive member includes a metal tube 10, a metal sleeve 11, an elastic metal plug 12, and a wire 13. The metal tube 10 is coaxially arranged in the discharge tube 02; the metal sleeve 11 is open at one end and closed at the other end, and the closed end of the metal sleeve 11 is fixed to the gas storage tube 01; the elastic metal plug 12 is located outside the gas storage tube 01 and can be inserted into the metal sleeve 11. The maximum cross-sectional diameter of the outer wall of the elastic metal plug 12 is larger than the inner wall of the metal sleeve 11. The outer side walls of the elastic metal plug 12 can be elastically gathered together. Therefore, when the two are plugged in, on the one hand, the elastic metal plug 12 can be smoothly inserted into the metal sleeve 11, and on the other hand, the outer side walls of the elastic metal plug 12 can be tightly pressed against the inner side walls of the metal sleeve 11 and electrically connected. The elastic metal plug 12 can be electrically connected to the negative pole of the external power supply. One end of the wire 13 is fixed to the metal tube 10 and electrically connected, and the other end of the wire 13 is fixed to the metal sleeve 11 and electrically connected.

[0052] The heat exchange cavity 020 is located between the metal tube 1 06 and the metal tube 2 10 ; the laser beam in the discharge tube 02 can pass through the metal tube 1 06 and the metal tube 2 10 ; the metal tube 1 06 is located between the free end and the fixed end of the return air pipe 05 .

[0053] When the CO2 laser tube is in use:

[0054] First, connect the lens cooling element and the heat exchange chamber 020 to the water circuit of the chiller; then electrically connect the elastic metal plug 108 to the positive pole of the external power supply, and the elastic metal plug 108 is inserted into the metal sleeve 107, and electrically connect the elastic metal plug 212 to the negative pole of the external power supply, and the elastic metal plug 212 is inserted into the metal sleeve 211; the laser generated in the discharge tube 02 is finally emitted from the light-transmitting element 04; under normal circumstances, a certain gas pressure is maintained in the gas storage tube 01. As the laser tube is used for a longer time, the gas in the gas storage tube 01 decreases or impurities are mixed in. At this time, valve 16 can be opened first. Since the vacuum tank 14 is in a vacuum state, the gas in the gas storage tube 01 will be sucked into the vacuum tank 14 after valve 16 is opened. After valve 16 is opened for a certain period of time, it is closed, and then valve 217 is opened. The gas in the gas storage tank 15 will be filled into the gas storage tube 01, thereby completing the replenishment and replacement of the gas in the gas storage tube 01.

[0055] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0056] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A carbon dioxide laser tube, characterized in that: include: A gas storage pipe (01), a discharge tube (02), a reflector 1 (03), a light-transmitting member (04), a gas return pipe (05), a positive electrode conductive member, a negative electrode conductive member, a vacuum tank (14), a gas storage tank (15), a valve 1 (16), and a valve 2 (17), wherein both ends of the gas storage pipe (01) are each provided with a connecting port; the discharge tube (02) is arranged in the gas storage pipe (01), one end of the discharge tube (02) is sealed and fixed to one end of the gas storage pipe (01), and the connecting port is limited in the discharge tube (02). side; the two connecting ports are each blocked by the reflector 1 (03) and the light-transmitting member (04); the reflector 1 (03) reflects the laser in the discharge tube (02) to the light-transmitting member (04); the laser in the discharge tube (02) can pass through the light-transmitting member (04); the side wall of the discharge tube (02) is provided with a heat exchange cavity (020) with a water inlet pipe (021) and a water outlet pipe (022); the water inlet pipe (021) and the water outlet pipe (022) are respectively connected to the water outlet and water inlet of the chiller The spiral return air pipe (05) is sleeved on the discharge tube (02), one end of the return air pipe (05) is a free end and the other end is fixed to and communicated with the discharge tube (02); one end of the positive conductive member and one end of the negative conductive member are both arranged inside the discharge tube (02), the positive conductive member and the negative conductive member can be connected to the positive and negative poles of an external power supply respectively, the discharge end of the positive conductive member is located between the free end and the fixed end of the return air pipe (05), and the heat exchange cavity (020) is located between the positive electrode conductive member and the negative electrode conductive member; the vacuum tank (14) is communicated with the gas storage pipe (01) and the valve one (16) is connected in series therebetween; the gas storage tank (15) is communicated with the gas storage pipe (01) and the valve two (17) is connected in series therebetween; the air pressure in the vacuum tank (14) is lower than the air pressure in the gas storage pipe (01); the gas storage tank (15) and the gas storage pipe (01) are filled with the same gas, and the air pressure in the gas storage tank (15) is higher than the air pressure in the gas storage pipe (01).

2. The carbon dioxide laser tube according to claim 1, characterized in that: The invention also includes a light guide tube (18) and a second reflector (19), wherein the light guide tube (18) and the second reflector (19) are both provided in plurality, and two second reflectors (19) are fixed inside each light guide tube (18), and both ends of the light guide tube (18) are open; the gas storage tube (01) is provided in plurality, and the plurality of gas storage tubes (01) are arranged side by side, and the plurality of gas storage tubes (01) are connected end to end in sequence through the plurality of light guide tubes (18), and a discharge tube (02) is arranged in each gas storage tube (01); one end of the gas storage tube (01) located at the head end is provided with a discharge tube (02); The light tube (18) is provided with the reflector 1 (03) at the other end; the gas storage tube (01) at the tail end is provided with a light guide tube (18) at one end, and the light-transmitting member (04) is installed at the other end; each of the two adjacent discharge tubes (02) corresponds to the respective positions of the two reflectors 2 (19) in the light guide tube (18) connected to the two; the laser beam in one of the two adjacent discharge tubes (02) can be reflected by the two reflectors 2 (19) located in the same light guide tube (18) to the other discharge tube (02).

3. The carbon dioxide laser tube according to claim 2, characterized in that: It also includes a plurality of lens cooling parts, wherein the reflector 1 (03), the light-transmitting part (04) and the plurality of reflectors 2 (19) are tightly fixed to the cooling ends of the plurality of lens cooling parts.

4. The carbon dioxide laser tube according to claim 3, characterized in that: The lens cooling element includes a heat exchange container (20) having an inlet and an outlet; the back surface of the reflector 1 (03), an end wall of the light-transmitting element (04), and the back surfaces of the plurality of reflectors 2 (19) are tightly fixed to one end wall of the plurality of heat exchange containers (20); a heat exchange container (20) is connected in series between each of the water inlet pipes (021) and the water outlet of the chiller, and a heat exchange container (20) is connected in series between each of the water outlet pipes (022) and the water inlet of the chiller; the heat exchange container (20) connected to the light-transmitting element (04) is provided with a light-transmitting hole, and the tube centerline of the discharge tube (02) corresponding to the light-transmitting element (04) is collinear with the hole centerline of the light-transmitting hole, so that the laser beam passing through the light-transmitting element (04) can pass through the light-transmitting hole.

5. The carbon dioxide laser tube according to claim 2, characterized in that: There are multiple vacuum tanks (14) and gas storage tanks (15), and one vacuum tank (14) and one gas storage tank (15) are fixedly connected between each two adjacent gas storage pipes (01). The interface of each vacuum tank (14) is equipped with one valve 1 (16), and the interface of each gas storage tank (15) is equipped with one valve 2 (17).

6. The carbon dioxide laser tube according to claim 2, characterized in that: The included angle of the mirror surfaces of the two reflectors (19) located in the same light guide tube (18) is 90 degrees, and the center lines of the two gas storage tubes (01) connected to the same light guide tube (18) jointly define a reference plane, and the mirror surface of the reflector (19) is perpendicular to the reference plane.

7. The carbon dioxide laser tube according to claim 1, characterized in that: The positive electrode conductive member includes a metal tube (06), a metal sleeve (07), an elastic metal plug (08) and a wire (09), wherein the metal tube (06) is coaxially arranged in the discharge tube (02), and the metal tube (06) is located between the free end and the fixed end of the return air pipe (05); the metal sleeve (07) is open at one end and closed at the other end, and the closed end of the metal sleeve (07) is fixed on the gas storage pipe (01); the elastic metal plug (08) is located outside the gas storage pipe (01), and the elastic metal plug One (08) can be inserted into the metal sleeve one (07), the outer wall of the elastic metal plug one (08) can be pressed against the inner wall of the metal sleeve one (07) and electrically conductive, and the elastic metal plug one (08) can be electrically connected to the positive pole of the external power supply; one end of the wire one (09) is fixed to the metal tube one (06) and electrically conductive, and the other end of the wire one (09) is fixed to the metal sleeve one (07) and electrically conductive; the negative electrode conductive part includes a metal tube two (10), a metal sleeve two (11), an elastic metal plug two (1 2) and a second wire (13), the second metal tube (10) is coaxially arranged in the discharge tube (02); the second metal sleeve (11) is open at one end and closed at the other end, and the closed end of the second metal sleeve (11) is fixed on the gas storage tube (01); the second elastic metal plug (12) is located outside the gas storage tube (01), and the second elastic metal plug (12) can be inserted into the second metal sleeve (11), and the outer wall of the second elastic metal plug (12) can be tightly pressed against the inner wall of the second metal sleeve (11) and electrically conductive, and the second elastic metal plug (12) can be inserted into the second metal sleeve (11), and the outer wall of the second elastic metal plug (12) can be ... electrically conductive, and the second elastic metal plug (12) can be electrically conductive. The metal plug (12) can be electrically connected to the negative pole of the external power supply; one end of the wire (13) is fixed to the metal tube (10) and electrically conductive, and the other end of the wire (13) is fixed to the metal sleeve (11) and electrically conductive; the heat exchange cavity (020) is located between the metal tube (06) and the metal tube (10); the laser beam in the discharge tube (02) can pass through the metal tube (06) and the metal tube (10); the metal tube (06) is located between the free end and the fixed end of the return air pipe (05).

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