Gas path structure of co2 laser and co2 laser

Abstract

This invention relates to the field of laser emission technology and discloses a gas path structure and a CO2 laser, including a laser body. A discharge tube is fixedly connected inside the laser body. An electrode connector is fixedly connected to the top of the discharge tube, and a sealing ring is fixedly connected to the bottom of the electrode connector. A first ring, a second ring, a third ring, and a fourth ring are fixedly connected to the inner wall of the sealing ring, respectively. A fixing ring is fixedly connected to the top of the first ring, and a sealing ring is fixedly connected to the inner wall of the fixing ring. A fixing block is fixedly connected to the top of the third ring, and a guide rod is slidably connected inside the fixing block. This gas path structure and CO2 laser effectively solve the problem in the prior art where the sealing ring inside the electrode connector fails, resulting in a significant decrease in laser output power and affecting the normal operation of the carbon dioxide laser.

Description

Technical Field

[0001] This invention relates to the field of laser emission technology, specifically to the gas path structure of a CO2 laser and a CO2 laser. Background Technology

[0002] A carbon dioxide laser is a molecular gas laser that uses carbon dioxide gas as its primary working medium. It is a typical example of a gas laser, generating laser light of a specific wavelength by exciting electron transitions in carbon dioxide molecules. It features high output power, good beam quality, and high efficiency, and has wide applications in industry, medicine, and scientific research. The gas path structure of a carbon dioxide laser mainly consists of a discharge tube, a gas storage tube, and a return tube. The discharge tube, usually made of hard glass, is the core area for gas discharge and laser generation. By applying a high-voltage electric field across the discharge tube, the carbon dioxide gas inside is ionized and discharged, exciting carbon dioxide molecules to produce laser light. Population inversion of live particles enables laser radiation. The gas storage tube is connected to the discharge tube at both ends. One end is connected to the discharge tube through a small hole, and the other end is connected to the discharge tube through a spiral return gas tube. The main function of the gas storage tube is to increase the gas storage capacity, balance and reduce the changes in the composition and pressure of the working gas during the discharge process, and extend the service life of the laser. The return gas tube is usually a spiral thin glass tube that connects the discharge tube and the gas storage tube. On the one hand, it avoids the discharge between the gas storage tube and the electrode, ensuring that the discharge only occurs in the discharge tube. On the other hand, the return gas tube can reduce the electrophoresis phenomenon generated in the gas storage tube, preventing charged particles from moving under the action of the electric field and affecting the gas distribution and discharge stability.

[0003] During the connection of the discharge tube and electrode connector, the electrode connector is usually aligned with the threaded hole at the end of the discharge tube and slowly screwed in to ensure a firm connection. A sealing ring is placed in the sealing groove at the end of the discharge tube. When the electrode connector is screwed into the threaded hole of the discharge tube, the sealing ring is compressed between the contact surfaces of the two. The sealing ring material has high elasticity, which causes the sealing ring to deform under pressure and fit tightly against the contact surface. The machined surfaces of the discharge tube and electrode connector have micro-roughness. The sealing ring fills the gap between the discharge tube and electrode connector by deformation, blocking the gas leakage path. The sealing effect of the sealing ring can effectively isolate the external environment, prevent gas leakage, and maintain the stability of the internal environment of the laser.

[0004] Currently, during the use of carbon dioxide lasers, the internal gas pressure of the discharge tube is relatively high. The sealing ring needs to withstand continuous gas pressure. The high pressure increases the contact pressure between the sealing ring and the discharge tube and electrode connector, resulting in greater friction between the sealing ring and the discharge tube and electrode connector. This leads to gradual wear on the surface of the sealing ring. Gas molecules diffuse through the channels (such as cracks and grooves) created by the wear, reducing the airtightness of the discharge tube. Carbon dioxide lasers rely on a specific ratio of mixed gases such as carbon dioxide, nitrogen, and helium to maintain discharge and laser generation. After the seal fails, the laser output power drops significantly, thus affecting the normal use of the carbon dioxide laser. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a gas path structure and a CO2 laser, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: First aspect: This invention provides a gas path structure for a CO2 laser, comprising: The laser body has a discharge tube fixedly connected inside it, an electrode connector fixedly connected to the top of the discharge tube, a sealing ring fixedly connected to the bottom of the electrode connector, and a first ring body, a second ring body, a third ring body and a fourth ring body fixedly connected to the inner wall of the sealing ring body respectively. A fixing ring is fixedly connected to the top of the first ring body, and a sealing ring is fixedly connected to the inner wall of the fixing ring. A fixing block is fixedly connected to the top of the third ring body, and a guide rod is slidably connected inside the fixing block. A connecting arc rod is fixedly connected to one end of the guide rod, and a sealing ring is fixedly connected to the outer surface of the connecting arc rod. A pressing wheel is rotatably connected to the outer surface of the connecting arc rod.

[0007] Furthermore, an upper rotating ring is rotatably connected to the top of the third ring body, and an extrusion protrusion is fixedly connected to the inner wall of the upper rotating ring.

[0008] Furthermore, a lower rotating ring is rotatably connected to the top of the first ring body, and a connecting block is fixedly connected to the top of the lower rotating ring. The top end of the connecting block passes through the second and third ring bodies and is fixedly connected to the bottom of the upper rotating ring. A telescopic arc cylinder is fixedly connected to the top of the first ring body, and a telescopic arc rod is slidably connected inside the telescopic arc cylinder. A telescopic arc spring is fixedly connected between the telescopic arc rod and the telescopic arc cylinder, and one end of the telescopic arc rod is fixedly connected to the lower rotating ring.

[0009] Furthermore, the inner wall of the lower rotating ring is provided with a slot, a locking block is slidably connected to the top of the first ring body, a first rod is fixedly connected to the outer surface of the locking block, a first spring is fixedly connected between the first rod and the fixed ring, and a first dial is rotatably connected to the outer surface of the first rod.

[0010] Furthermore, a rotating block is rotatably connected to the top of the first ring, and a toggle bar is fixedly connected to the top of the rotating block. The first dial is slidably connected to the toggle bar.

[0011] Furthermore, the outer surface of the fixed ring is provided with air holes, a telescopic cylinder is fixedly connected to the outer surface of the fixed ring, a telescopic rod is slidably connected inside the telescopic cylinder, and a second dial is rotatably connected to the outer surface of the telescopic rod. The second dial is slidably connected to the dial bar.

[0012] Furthermore, a telescopic shaft is slidably connected to the top of the second ring body, one end of the telescopic shaft passes through the sealing collar and is fixedly connected to a telescopic ball, and a second spring is fixedly connected between the telescopic shaft and the second ring body.

[0013] Furthermore, a slide rail is fixedly connected to the top of the second ring body, and a pulley is rotatably connected to the bottom of the telescopic shaft, with the pulley slidably connected inside the slide rail.

[0014] Furthermore, a stop wheel is rotatably connected to the outer surface of the telescopic shaft, and a rotating plug is rotatably connected to the top of the second ring body; the rotating plug is fixedly connected to the connecting block. The rotating insert includes an inner arc surface and an acceleration ramp.

[0015] In a second aspect, this invention provides a CO2 laser, including the gas path structure of the CO2 laser described in the first aspect.

[0016] The technical solution provided by this invention has the following advantages compared with the prior art: 1. When leakage occurs on the sealing surface of the sealing ring, the four connecting arc rods drive the four sealing rings to move along the axis of the guide rod towards the discharge tube, so that the four sealing rings are tightly attached to the outer circumference of the discharge tube. The four closed sealing rings seal the gap between the discharge tube and the electrode connector, thereby effectively sealing the gap between the discharge tube and the electrode connector, preventing gas leakage inside the discharge tube, thus keeping the output power of the laser at the rated power, greatly reducing the failure rate of the laser, and facilitating the normal use of the carbon dioxide laser.

[0017] 2. The telescopic shaft drives the telescopic ball at one end to slide along the slide rail towards the outside of the sealing ring, causing the telescopic balls on both sides of the sealing ring to pop outward. Once the operator sees the telescopic balls on both sides of the sealing ring pop outward, they can know that the sealing ring has leaked. By observing whether the telescopic balls on both sides of the sealing ring pop outward, the operator can determine whether the sealing ring has leaked. When the sealing ring leaks, it can be replaced in time to ensure the normal operation of the equipment.

[0018] 3. The upper rotating ring drives the extrusion protrusions on its inner wall to rotate rapidly, increasing the pushing speed of the extrusion protrusions on the extrusion wheel, connecting arc rod and sealing ring, thereby enabling the four sealing rings to quickly close and seal the discharge tube. Leakage of the sealing ring means that the high-pressure gas inside the discharge tube begins to leak out. If measures are not taken in time, the amount of gas leakage will continue to increase over time, affecting the normal operation of the laser. This application blocks the gas leakage channel in the early stage of sealing ring leakage, speeds up the sealing action, greatly shortens the execution time of the sealing action, improves the sealing efficiency, greatly reduces the amount of gas leakage, and further ensures the stability of the gas pressure inside the laser. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the electrode connector structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the sealing ring structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the telescopic sphere in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the fourth ring body in an embodiment of the present invention; Figure 6 This is a schematic diagram of the connecting arc rod in an embodiment of the present invention; Figure 7 This is a schematic diagram of the sealing ring in a sealed state in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the third ring body in an embodiment of the present invention; Figure 9 This is a schematic diagram of the telescopic shaft in an embodiment of the present invention; Figure 10 This is a schematic diagram of the telescopic sphere in the pop-out state in an embodiment of the present invention; Figure 11 This is a schematic diagram of the slide rail structure in an embodiment of the present invention; Figure 12 This is a schematic diagram of the telescopic arc rod in an embodiment of the present invention; Figure 13 This is a schematic diagram of the pore structure in an embodiment of the present invention; Figure 14 This is a schematic diagram of the structure of the fixing ring in an embodiment of the present invention; Figure 15 This is a schematic diagram of the card slot structure in an embodiment of the present invention.

[0021] The labels in the diagram represent: 1. Laser body; 11. Discharge tube; 12. Electrode connector; 13. Sealing ring; 14. First ring; 15. Second ring; 16. Third ring; 17. Fourth ring; 2. Fixing ring; 21. Sealing ring; 22. Fixing block; 23. Guide rod; 24. Connecting arc rod; 25. Sealing ring plate; 26. Extrusion wheel; 3. Upper rotating ring; 31. Extrusion protrusion; 32. Lower rotating ring; 33. Connecting block; 3 4. Telescopic arc cylinder; 35. Telescopic arc rod; 4. Slot; 41. Locking block; 42. First rod body; 43. First spring; 44. First dial wheel; 45. Rotating block; 46. Actuating bar; 5. Air hole; 51. Telescopic cylinder; 52. Telescopic rod; 53. Second dial wheel; 6. Telescopic shaft; 61. Telescopic ball; 62. Second spring; 63. Pulley; 64. Slide rail; 65. Rotating insert; 66. Stop wheel; 651. Inner arc surface; 652. Acceleration ramp. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] The present invention will be further described below with reference to embodiments.

[0024] Example 1: Please refer to Figures 1-15 This invention provides a technical solution: a gas path structure for a CO2 laser, comprising: The laser body 1 has a discharge tube 11 fixedly connected inside it. An electrode connector 12 is fixedly connected to the top of the discharge tube 11. A sealing ring 13 is fixedly connected to the bottom of the electrode connector 12. A first ring body 14, a second ring body 15, a third ring body 16, and a fourth ring body 17 are fixedly connected to the inner wall of the sealing ring 13. A fixing ring 2 is fixedly connected to the top of the first ring body 14. A sealing ring 21 is fixedly connected to the inner wall of the fixing ring 2. A fixing block 22 is fixedly connected to the top of the third ring body 16. A guide rod 23 is slidably connected inside the fixing block 22. A connecting arc rod 24 is fixedly connected to one end of the guide rod 23. A sealing ring plate 25 is fixedly connected to the outer surface of the connecting arc rod 24. A pressing wheel 26 is rotatably connected to the outer surface of the connecting arc rod 24.

[0025] The top of the third ring body 16 is rotatably connected to an upper rotating ring 3, and the inner wall of the upper rotating ring 3 is fixedly connected to a pressing protrusion 31; the top of the first ring body 14 is rotatably connected to a lower rotating ring 32, and the top of the lower rotating ring 32 is fixedly connected to a connecting block 33. The top end of the connecting block 33 passes through the second ring body 15 and the third ring body 16 and is fixedly connected to the bottom of the upper rotating ring 3. The top of the first ring body 14 is fixedly connected to a telescopic arc cylinder 34, and a telescopic arc rod 35 is slidably connected inside the telescopic arc cylinder 34. A telescopic arc spring is fixedly connected between the telescopic arc rod 35 and the telescopic arc cylinder 34, and one end of the telescopic arc rod 35 is fixedly connected to the lower rotating ring 32.

[0026] Under the elastic action of the telescopic spring, the telescopic spring pushes the telescopic arc rod 35 to slide inside the telescopic arc cylinder 34. The two telescopic arc rods 35 push the lower rotating ring 32 to rotate around its own axis at the top of the first ring body 14 through their ends. The lower rotating ring 32 drives the connecting block 33 at its top to rotate synchronously around the axis of the lower rotating ring 32. Figure 6 , Figure 7 and Figure 8 As shown, the two connecting blocks 33 drive the upper rotating ring 3 at its top to rotate around the axis of the upper rotating ring 3, and the rotating upper rotating ring 3 drives the pressing protrusion 31 on its inner wall to rotate around the axis of the upper rotating ring 3.

[0027] The inner wall of the lower rotating ring 32 is provided with a slot 4. The top of the first ring body 14 is slidably connected to a block 41. The outer surface of the block 41 is fixedly connected to a first rod 42. The first rod 42 and the fixed ring 2 are fixedly connected to a first spring 43. The outer surface of the first rod 42 is rotatably connected to a first dial wheel 44. The top of the first ring body 14 is rotatably connected to a rotating block 45. The top of the rotating block 45 is fixedly connected to a toggle bar 46. The first dial wheel 44 and the toggle bar 46 are slidably connected.

[0028] The first spring 43 pulls the first rod 42 and the locking block 41 closer to the fixing ring 2 along the axis of the first rod 42, causing the locking block 41 to separate from the locking groove 4. (See reference...) Figure 15Release the limiting effect of the locking block 41 on the lower rotating ring 32 (the lower rotating ring 32 can rotate around its own axis).

[0029] The outer surface of the fixed ring 2 is provided with an air hole 5. A telescopic cylinder 51 is fixedly connected to the outer surface of the fixed ring 2. A telescopic rod 52 is slidably connected inside the telescopic cylinder 51. A second dial 53 is rotatably connected to the outer surface of the telescopic rod 52. The second dial 53 is slidably connected to the actuating bar 46.

[0030] When the sealing ring 21 is not worn, the air pressure inside the vent 5 is low, and the telescopic rod 52 cannot slide outward along the axis of the telescopic cylinder 51. The second dial wheel 53 and the first dial wheel 44 are slidably connected inside the actuating strip 46. Since the second dial wheel 53 cannot move along the axis of the telescopic cylinder 51, the rotating block 45 cannot rotate around its own axis, thus limiting the first dial wheel 44 and the first rod 42. The first spring 43 cannot pull the locking block 41 to move at the top of the first ring 14 through the first rod 42. When the sealing ring 21 is worn, the air pressure inside the vent 5 increases, and the telescopic rod 52 slides outward along the axis of the telescopic cylinder 51. The second dial wheel 53 and the first dial wheel 44 are slidably connected inside the actuating strip 46. The second dial wheel 53 and the first dial wheel 44 jointly push the rotating block 45 to rotate around its own axis through the actuating strip 46, releasing the limitation on the locking block 41, causing the locking block 41 to separate from the locking groove 4, and thus releasing the rotation limitation on the lower rotating ring 32.

[0031] The top of the second ring body 15 is slidably connected to a telescopic shaft 6. One end of the telescopic shaft 6 passes through the sealing collar 13 and is fixedly connected to a telescopic ball 61. A second spring 62 is fixedly connected between the telescopic shaft 6 and the second ring body 15. The top of the second ring body 15 is fixedly connected to a slide rail 64. The bottom of the telescopic shaft 6 is rotatably connected to a pulley 63, which is slidably connected inside the slide rail 64. A stop wheel 66 is rotatably connected to the outer surface of the telescopic shaft 6. The top of the second ring body 15 is rotatably connected to a rotating insert 65, which is fixedly connected to the connecting block 33. The rotating insert 65 includes an inner arc surface 651 and an acceleration ramp surface 652.

[0032] The connecting block 33 drives the rotating insert 65 on its outer surface to rotate counterclockwise around the axis of the second ring body 15. After the rotating insert 65 separates from the stop wheel 66, the inner arc surface 651 releases the restriction on the stop wheel 66. Under the limiting action of the pulley 63 and the slide rail 64, the telescopic shaft 6 can slide along the slide rail 64 to the outside of the sealing collar 13. Under the elastic action of the second spring 62, the second spring 62 pushes the telescopic shaft 6 to slide along the slide rail 64 to the outside of the sealing collar 13. The moving telescopic shaft 6 drives one of its... The telescopic ball 61 at one end slides along the slide rail 64 to the outside of the sealing ring 13, causing the telescopic balls 61 on both sides of the sealing ring 13 to pop outward. After the operator sees the telescopic balls 61 on both sides of the sealing ring 13 pop outward, they can know that the sealing ring 21 has leaked. The operator can determine whether the sealing ring 21 has leaked by observing whether the telescopic balls 61 on both sides of the sealing ring 13 pop outward. When the sealing ring 21 leaks, it can be replaced in time to ensure the normal operation of the equipment.

[0033] Working principle: Sealing compensation mechanism: In practical applications, such as Figure 2 and Figure 12 As shown, the sealing ring 13, through its internal sealing ring 21, is tightly attached to the outer circumference of the discharge tube 11, thereby sealing the gap between the electrode connector 12 and the discharge tube 11. With prolonged use of the laser, the high-pressure gas inside the discharge tube 11 continuously compresses the sealing ring 21. This high pressure increases the contact pressure between the sealing ring 21 and the discharge tube 11, causing the sealing ring 21 to gradually wear down. Gas molecules inside the discharge tube 11 diffuse through the channels (such as cracks and grooves) created by this wear. Figure 13 , Figure 14 and Figure 15 As shown, the sealing ring 21 cannot effectively seal the vent 5, and the gas inside the discharge tube 11 enters the vent 5. The gas pressure inside the vent 5 inside the fixing ring 2 increases. When the sealing ring 21 is not worn, the gas pressure inside the vent 5 is lower than the external gas pressure, and the telescopic rod 52 is difficult to slide outward along the axis of the telescopic cylinder 51. After the sealing ring 21 is worn, the gas pressure inside the vent 5 increases. Under the elastic action of the high-pressure gas and the first spring 43, the first spring 43 pulls the first rod 42 and the locking block 41 closer to the fixing ring 2 along the axis of the first rod 42, causing the locking block 41 to separate from the locking groove 4. (See reference...) Figure 15 Release the locking block 41 from limiting the lower rotating ring 32 (the lower rotating ring 32 can rotate around its own axis). Under the elastic action of the telescopic arc spring, the telescopic arc spring pushes the telescopic arc rod 35 to slide inside the telescopic arc cylinder 34. The two telescopic arc rods 35 push the lower rotating ring 32 to rotate around its own axis at the top of the first ring body 14 through their ends. The lower rotating ring 32 drives the connecting block 33 at its top to rotate synchronously around the axis of the lower rotating ring 32. Figure 6 , Figure 7 and Figure 8 As shown, the two connecting blocks 33 drive the upper rotating ring 3 at its top to rotate around the axis of the upper rotating ring 3. The rotating upper rotating ring 3 drives the pressing protrusion 31 on its inner wall to rotate around the axis of the upper rotating ring 3. Under the guidance of the fixed block 22 and the guide rod 23, after the rotating pressing protrusion 31 contacts the pressing wheel 26, the pressing protrusion 31 pushes the four connecting arc rods 24 along the axis of the guide rod 23 towards the discharge tube 11 through the pressing wheel 26. The four connecting arc rods 24 drive the four sealing ring pieces 25 along the axis of the guide rod 23 towards the discharge tube 11, so that the four sealing ring pieces 25 are tightly attached to the outer circumference of the discharge tube 11. (See reference...) Figure 7 The four closing sealing rings 25 seal the gap between the discharge tube 11 and the electrode connector 12, thereby effectively sealing the gap between the discharge tube 11 and the electrode connector 12 by the sealing ring 13, preventing gas leakage inside the discharge tube 11, thus keeping the output power of the laser at the rated power, greatly reducing the failure rate of the laser, and facilitating the normal use of the carbon dioxide laser.

[0034] As a further embodiment of the present invention, such as Figure 13 , Figure 14 and Figure 15 As shown, when the sealing ring 21 is not worn, the air pressure inside the vent 5 is low, and the telescopic rod 52 cannot slide outward along the axis of the telescopic cylinder 51. The second dial wheel 53 and the first dial wheel 44 are slidably connected inside the actuating strip 46. Since the second dial wheel 53 cannot move along the axis of the telescopic cylinder 51, the rotating block 45 cannot rotate around its own axis, thus limiting the first dial wheel 44 and the first rod 42. The first spring 43 cannot pull the locking block 41 to move at the top of the first ring 14 through the first rod 42. When the sealing ring 21 is worn, the air pressure inside the vent 5 increases, and the telescopic rod 52 slides outward along the axis of the telescopic cylinder 51. The second dial wheel 53 and the first dial wheel 44 are slidably connected inside the actuating strip 46. The second dial wheel 53 and the first dial wheel 44 jointly push the rotating block 45 to rotate around its own axis through the actuating strip 46, releasing the limitation on the locking block 41, causing the locking block 41 to separate from the slot 4, and thus releasing the rotation limitation on the lower rotating ring 32.

[0035] Leakage alert mechanism: In practical applications, such as Figure 9 , Figure 10 and Figure 11As shown, during the rotation of the connecting block 33 around the axis of the second ring body 15, the connecting block 33 drives the rotating insert 65 on its outer surface to rotate counterclockwise around the axis of the second ring body 15. After the rotating insert 65 separates from the stop wheel 66, the inner arc surface 651 releases the restriction on the stop wheel 66. Under the limiting action of the pulley 63 and the slide rail 64, the telescopic shaft 6 can slide along the slide rail 64 to the outside of the sealing collar 13. Under the elastic action of the second spring 62, the second spring 62 pushes the telescopic shaft 6 to slide along the slide rail 64 to the outside of the sealing collar 13. The moving telescopic shaft 6 drives the telescopic ball 61 at one end to slide along the slide rail 64 towards the outside of the sealing ring 13, causing the telescopic balls 61 on both sides of the sealing ring 13 to pop outward. After the staff sees the telescopic balls 61 on both sides of the sealing ring 13 pop outward, they can know that the sealing ring 21 has leaked. The staff can determine whether the sealing ring 21 has leaked by observing whether the telescopic balls 61 on both sides of the sealing ring 13 pop outward. When the sealing ring 21 leaks, it can be replaced in time to ensure the normal operation of the equipment.

[0036] Rapid response mechanism: In practical applications, such as Figure 9 and Figure 10 As shown, when the sealing ring 21 leaks, the connecting block 33 drives the rotating insert 65 to rotate counterclockwise around the axis of the second ring body 15. When the retaining wheel 66 separates from the inner arc surface 651, the retaining wheel 66 contacts the rotating insert 65 through the accelerating inclined surface 652. Under the action of the elastic force of the second spring 62, the second spring 62 pushes the retaining wheel 66 along the slide rail 64 towards the sealing ring 13 through the telescopic shaft 6. The moving retaining wheel 66 pushes the rotating insert 65 through the accelerating inclined surface 652, so that the retaining wheel 66 applies a rotational torque to the rotating insert 65. Under the action of this rotational torque, the rotational speed of the rotating insert 65 and the connecting block 33 is accelerated, thereby accelerating the rotational speed of the upper rotating ring 3. The extrusion protrusions 31 on the inner wall of the laser tube 11 rotate rapidly, increasing the pushing speed of the extrusion protrusions 31 on the extrusion wheel 26, the connecting arc rod 24 and the sealing ring 25. This causes the four sealing rings 25 to quickly close and seal the discharge tube 11. Leakage of the sealing ring 21 means that the high-pressure gas inside the discharge tube 11 begins to leak out. If measures are not taken in time, the amount of gas leakage will increase over time, affecting the normal operation of the laser. This application blocks the gas leakage channel in time at the initial stage of leakage of the sealing ring 21, speeds up the sealing action, greatly shortens the execution time of the sealing action, improves the sealing efficiency, greatly reduces the amount of gas leakage, and further ensures the stability of the gas pressure inside the laser.

[0037] Example 2: This embodiment of the invention provides a CO2 laser, which adapts to the gas path structure of the CO2 laser described in Example 1.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gas path structure for a CO2 laser, comprising a laser body (1), characterized in that: A discharge tube (11) is fixedly connected inside the laser body (1). An electrode connector (12) is fixedly connected to the top of the discharge tube (11). A sealing ring (13) is fixedly connected to the bottom of the electrode connector (12). A first ring body (14), a second ring body (15), a third ring body (16), and a fourth ring body (17) are fixedly connected to the inner wall of the sealing ring (13). A fixing ring (2) is fixedly connected to the top of the first ring body (14), and a sealing ring (21) is fixedly connected to the inner wall of the fixing ring (2). A fixing block (22) is fixedly connected to the top of the third ring body (16). A guide rod (23) is slidably connected inside the fixing block (22). A connecting arc rod (24) is fixedly connected to one end of the guide rod (23). A sealing ring piece (25) is fixedly connected to the outer surface of the connecting arc rod (24). A pressing wheel (26) is rotatably connected to the outer surface of the connecting arc rod (24). The top of the third ring body (16) is rotatably connected to an upper rotating ring (3), and the inner wall of the upper rotating ring (3) is fixedly connected to a pressing protrusion (31). The top of the first ring body (14) is rotatably connected to a lower rotating ring (32), and the top of the lower rotating ring (32) is fixedly connected to a connecting block (33). The top of the connecting block (33) passes through the second ring body (15) and the third ring body (16) and is fixedly connected to the bottom of the upper rotating ring (3). The top of the first ring body (14) is fixedly connected to a telescopic arc cylinder (34), and a telescopic arc rod (35) is slidably connected inside the telescopic arc cylinder (34). A telescopic arc spring is fixedly connected between the telescopic arc rod (35) and the telescopic arc cylinder (34), and one end of the telescopic arc rod (35) is fixedly connected to the lower rotating ring (32). The inner wall of the lower rotating ring (32) is provided with a slot (4), the top of the first ring body (14) is slidably connected with a block (41), the outer surface of the block (41) is fixedly connected with a first rod (42), the first rod (42) is fixedly connected with a first spring (43) between the first rod (42) and the fixed ring (2), and the outer surface of the first rod (42) is rotatably connected with a first dial (44). The top of the first ring (14) is rotatably connected to a rotating block (45), and the top of the rotating block (45) is fixedly connected to a toggle bar (46). The first dial (44) is slidably connected to the toggle bar (46). The outer surface of the fixed ring (2) is provided with an air hole (5), and a telescopic cylinder (51) is fixedly connected to the outer surface of the fixed ring (2). A telescopic rod (52) is slidably connected inside the telescopic cylinder (51), and a second dial wheel (53) is rotatably connected to the outer surface of the telescopic rod (52). The second dial wheel (53) is slidably connected to the dial bar (46).

2. The gas path structure of the CO2 laser according to claim 1, characterized in that: The top of the second ring (15) is slidably connected to a telescopic shaft (6), one end of which passes through a sealing collar (13) and is fixedly connected to a telescopic ball (61). A second spring (62) is fixedly connected between the telescopic shaft (6) and the second ring (15).

3. The gas path structure of the CO2 laser according to claim 2, characterized in that: The top of the second ring (15) is fixedly connected to a slide rail (64), and the bottom of the telescopic shaft (6) is rotatably connected to a pulley (63), which is slidably connected inside the slide rail (64).

4. The gas path structure of the CO2 laser according to claim 2, characterized in that: The outer surface of the telescopic shaft (6) is rotatably connected to a stop wheel (66), and the top of the second ring body (15) is rotatably connected to a rotating plug (65). The rotating plug (65) is fixedly connected to the connecting block (33). The rotating insert (65) includes an inner arc surface (651) and an acceleration ramp surface (652).

5. A CO2 laser, characterized in that: The gas path structure of the CO2 laser as described in any one of claims 1-4 is included.

Images