A nitrogen generator for a handheld laser welding machine

Abstract

The present invention belongs to the technical field of nitrogen making equipment, specifically a nitrogen making machine for a handheld laser welder, including a nitrogen making machine box, the nitrogen making machine box including a protective shell, a control panel fixedly connected to the back of the inner cavity of the protective shell, a movable base arranged at the bottom of the protective shell, side protection plates symmetrically arranged on both sides of the outer surface of the protective shell, and a nitrogen generator arranged at the bottom of the inner wall of the protective shell. Since nitrogen is ejected through the jet end, the rubber tube sleeve connected to the jet end is prone to accumulate more nitrogen due to untimely nitrogen discharge, which causes the pipe body connection to burst due to high pressure, and then nitrogen leakage occurs. Therefore, a storage bottom shell is provided for switching work. When the nitrogen pressure is too high, the bottom connection plate can be automatically opened to relieve pressure, so as to prevent the pipe body connection from being in a high pressure state at all times and then exceeding its load and bursting.

Description

Technical Field

[0001] The present invention belongs to the technical field of nitrogen production equipment, and specifically relates to a nitrogen generator for a handheld laser welder. Background Art

[0002] Currently, nitrogen production in nitrogen generators usually adopts membrane separation nitrogen production technology or pressure swing adsorption nitrogen production technology. Membrane separation nitrogen production technology utilizes the different solubility and diffusion coefficients of gas molecules such as nitrogen and oxygen in air in a polymer hollow fiber membrane, thus having different permeation rates, to separate gases such as nitrogen and oxygen to produce nitrogen or oxygen. Its principle is to separate gas mixtures by utilizing the difference in the "adsorption" performance of different gas molecules by molecular sieves. It uses air as raw material and separates nitrogen and oxygen in air by using the selective adsorption performance of a highly efficient and highly selective solid adsorbent for nitrogen and oxygen.

[0003] Since nitrogen will be supplied to the position where the laser head is located through a spraying component after production, the nitrogen will be drained through connecting pipes such as rubber hoses at its nozzle part. However, the air pressure generated by the release of nitrogen is generally relatively large. When the pipe moves along with the welding torch, the connecting end part is prone to excessive nitrogen pressure due to bending problems, and thus nitrogen leakage is likely to occur. Therefore, improvement is needed. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve its technical problems is: a nitrogen generator for a handheld laser welder, including a nitrogen production machine case, the nitrogen production machine case includes a protective housing, a control panel is fixedly connected to the back of the inner cavity of the protective housing, a moving base is arranged at the bottom of the protective housing, side protection plates are symmetrically arranged on both sides of the outer surface of the protective housing, a nitrogen generator is arranged at the bottom of the inner wall of the protective housing, a jetting device is arranged at the front of the inner wall of the protective housing, and a residual gas storage component is arranged at the bottom of the jetting device;

[0005] The nitrogen generator includes a main adsorption tower, a connecting base is arranged at the bottom of the main adsorption tower, a secondary adsorption tower is fixedly connected to one side of the connecting base away from the main adsorption tower, a gas storage tower is fixedly connected to the back of the inner cavity of the connecting base through a transfer pipe. Through the separation and processing of the two adsorption towers, the generated nitrogen is stored in the gas storage tower for use. A transfer component is arranged at the top of the gas storage tower;

[0006] The jetting device includes an isolation outer frame, jetting ends are symmetrically arranged on both sides of the inner wall of the isolation outer frame, a flow divider is fixedly connected to the top of the inner cavity of the jetting end, and a protection component is fixedly connected to the bottom of the jetting end;

[0007] The protection component includes a storage bottom shell, and a movable inner frame is slidably connected to the inner wall of the storage bottom shell. Bent through pipes are symmetrically arranged at the front part of the inner cavity of the movable inner frame. A rubber tube sleeve is fixedly connected to the bottom end of the bent through pipe. A transverse strip plate is fixedly connected to the bottom of the inner wall of the movable inner frame. Connecting through discs are symmetrically arranged on both sides of the inner cavity of the transverse strip plate through through ports. A through port capable of being docked with the connecting through disc is also opened at the bottom of the inner cavity of the storage bottom shell. However, at this time, the through port is blocked by the transverse strip plate. As Figure 5 shown, the connecting through disc is completely staggered from the through port at the bottom. Pressure-sensitive air cushions are symmetrically arranged on both the left and right sides of the inner cavity of the movable inner frame. External push boxes are fixedly connected to both the left and right sides of the outer surface of the movable inner frame. The external push boxes on both sides can dock the through port at the bottom with the connecting through disc by pushing the movable inner frame laterally.

[0008] Further, the outer surface of the storage bottom shell is fixedly connected to the bottom of the inner wall of the isolation outer frame. The number of jet nozzles is two. The back of the outer surface of the jet nozzle is fixedly connected to the inner wall of the isolation outer frame. The outer surface of the isolation outer frame is fixedly connected to the front part of the inner cavity of the protection shell. The number of the bent through pipes is two. The outer surface of the bent through pipe is slidably connected to the front part of the inner cavity of the storage bottom shell through a guiding chute. The bottom end of the jet nozzle is fixedly connected to the top of the inner cavity of the storage bottom shell through a through port. The outer surface of the external push box is fixedly connected to the inner wall of the isolation outer frame.

[0009] Further, fixed bottom cylinders are symmetrically arranged on both sides of the lower surface of the storage bottom shell through shunt ports. A sliding inner cylinder is slidably connected to the axis of the inner wall of the fixed bottom cylinder. A spring washer is sleeved on the lower part of the outer surface of the sliding inner cylinder. Through spray nozzles are evenly opened at the axis of the inner cavity of the sliding inner cylinder. The residual gas storage component includes a wall-attached inner frame. One-way rotating plates are evenly arranged on the inner wall of the wall-attached inner frame. An arc spring is fixedly connected to the lower surface of the one-way rotating plate. An insertion connecting plate is fixedly connected to the bottom of the inner cavity of the wall-attached inner frame. A compression soft sleeve is fixedly connected to the bottom end of the insertion connecting plate. After storing nitrogen in the compression soft sleeve, it will expand under the action of air pressure and then extend downward. The number of the fixed bottom cylinders is three. The bottom end of the fixed bottom cylinder is fixedly connected to the top of the inner cavity of the wall-attached inner frame. The bottom end of the sliding inner cylinder extends into the interior of the wall-attached inner frame. The outer surface of the wall-attached inner frame is fixedly connected to the front part of the inner wall of the protection shell. The outer surface of the compression soft sleeve is slidably connected to the front part of the inner wall of the protection shell.

[0010] Further, the adapter component includes a movable pull plate, the lower surface of the movable pull plate is fixedly connected with a limit clamp, the inner wall of the limit clamp is fixedly connected with a horizontal slide, the left side of the inner wall of the horizontal slide is slidably connected with an outlet pipe, and the right side of the inner wall of the horizontal slide is slidably connected with an inlet pipe. Since the inlet pipe and the outlet pipe are always kept in a relatively fixed state, the horizontal slide can slide relative to the two pipes. A two-way rotating machine is arranged in the middle of the inner wall of the horizontal slide, and the left and right ends of the output shaft of the two-way rotating machine are fixedly connected with threaded rotating rods. The front and rear sides of the inner cavity of the movable pull plate are symmetrically provided with tension connecting rods through the sliding groove, and the outer surface of the tension connecting rod is slidably connected with a pull rod device on the side away from the movable pull plate, and the upper surface of the pull rod device is slidably connected with the upper part of the inner wall of the protective shell, the left end of the outlet pipe is fixedly connected with the top of the inner cavity of the diverter, and the bottom end of the inlet pipe is fixedly connected with the axis of the inner cavity of the gas storage tower.

[0011] Furthermore, the upper surface of the movable pull plate is slidably connected to the upper part of the inner wall of the protective shell, the left end of the bidirectional rotating machine is plugged into the axis of the inner wall of the outlet pipe through a threaded rotating rod, the right end of the bidirectional rotating machine is plugged into the axis of the inner wall of the inlet pipe through a threaded rotating rod, and the outer surface of the bidirectional rotating machine is fixedly connected to the middle part of the inner wall of the horizontal sliding cylinder through a clamping rod.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. The device can separate nitrogen from the air and prepare nitrogen. The prepared nitrogen will be stored inside the gas storage tower to provide protection for the laser welding gun end. Since nitrogen is ejected through the jet end, the rubber tube sleeve connected to the jet end is prone to accumulate more nitrogen due to untimely nitrogen discharge, which causes the pipe body connection to burst due to high pressure, resulting in nitrogen leakage. Therefore, a storage bottom shell is set for transfer work. When the nitrogen pressure is too high, the bottom connection can be automatically opened to relieve pressure to prevent the pipe body connection from being in a high pressure state at all times and exceeding its load and bursting.

[0014] 2. When the device prepares nitrogen, it will separate the inhaled air through two sets of adsorption towers to ensure that the prepared nitrogen has high purity and low oxygen content, thereby effectively protecting the laser welding end and preventing external dust from contaminating the polished surface of the laser welding end when it is working. Since the adsorption tower can prepare nitrogen in real time during work and can also prepare nitrogen in advance before work, the device is highly flexible to meet different work needs.

[0015] 3. The storage bottom shell transports the accumulated nitrogen to the compression sleeve at the bottom through the fixed bottom cylinder at the bottom. Since the prepared and stored nitrogen is not contaminated and the nitrogen has not been used, this part of the nitrogen can be directly recovered from the expanded compression sleeve, thereby reducing the nitrogen loss problem. After the nitrogen is stored inside the compression sleeve, the internal pressure of the compression sleeve will also increase. When the storage bottom shell does not discharge nitrogen, in order to prevent nitrogen from flowing back from the compression sleeve to the storage bottom shell, a one-way rotating plate and a sliding inner cylinder are set to prevent nitrogen from flowing back to the storage bottom shell.

[0016] 4. When the drainage work is carried out, the pull rod device located at the top can repeatedly pull the tension link to drive the horizontal slide cylinder to slide left and right by moving the pull plate, so that the two-way rotating machine can slide left and right relative to the air pipes on both sides. At this time, the threaded rotating rods on both sides will have one end of the threaded rotating rod pulled out from the inside of the air pipe, but the threaded rotating rod at the other end will be inserted deeper into the air pipe, thereby completely blocking the air pipe, thereby preventing nitrogen leakage inside the gas storage tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention;

[0018] Figure 2 is a cross-sectional view of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the nitrogen generator of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the jetting device of the present invention;

[0021] Figure 5 is a cross-sectional view of the protective component of the present invention;

[0022] Figure 6 is a cross-sectional view of the residual gas storage component of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the switching component of the present invention.

[0024] In the figure: 1, nitrogen box; 11, protective shell; 12, control panel; 13, mobile base; 14, side protection plate; 2, nitrogen generator; 21, main adsorption tower; 22, connecting base; 23, auxiliary adsorption tower; 24, gas storage tower; 4, jet equipment; 41, isolation outer frame; 42, jet end; 43, diverter; 6, protective components; 61, storage bottom shell; 62, mobile inner frame; 63, bending through pipe; 64, rubber tube sleeve; 65, fixed bottom cylinder; 66, sliding inner cylinder; 6 7. Spring washer; 68. Horizontal strip; 69. Connecting plate; 610. Pressure-sensitive air cushion; 611. External push box; 5. Residual air storage component; 51. Wall-attached inner frame; 52. One-way rotating plate; 53. Arc spring; 54. Plug-in connecting plate; 55. Compression soft sleeve; 3. Adapter component; 31. Moving pull plate; 32. Tension connecting rod; 33. Pull rod; 34. Limit clamp; 35. Horizontal slide; 36. Exhaust pipe; 37. Inlet pipe; 38. Two-way rotating machine; 39. Threaded rotating rod. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0026] Example 1, please refer to Figures 1 - 5 The present invention provides a technical solution: a nitrogen generator for a handheld laser welder, comprising a nitrogen generator case 1, the nitrogen generator case 1 comprising a protective shell 11, a control panel 12 is fixedly connected to the back of the inner cavity of the protective shell 11, a movable base 13 is arranged at the bottom of the protective shell 11, side protection plates 14 are symmetrically arranged on both sides of the outer surface of the protective shell 11, a nitrogen generator 2 is arranged at the bottom of the inner wall of the protective shell 11, a jet device 4 is arranged at the front of the inner wall of the protective shell 11, and a residual gas storage component 5 is arranged at the bottom of the jet device 4;

[0027] The nitrogen generator 2 includes a main adsorption tower 21, a connecting base 22 is provided at the bottom of the main adsorption tower 21, a secondary adsorption tower 23 is fixedly connected to the side of the connecting base 22 away from the main adsorption tower 21, and a gas storage tower 24 is fixedly connected to the back of the inner cavity of the connecting base 22 through a transfer tube. Through the separation processing of the two groups of adsorption towers, the generated nitrogen is stored in the gas storage tower 24 to be prepared for use, and a transfer component 3 is provided on the top of the gas storage tower 24;

[0028] The jet device 4 includes an isolation outer frame 41, and jet ends 42 are symmetrically arranged on both sides of the inner wall of the isolation outer frame 41. A diverter 43 is fixedly connected to the top of the inner cavity of the jet end 42, and a protective component 6 is fixedly connected to the bottom of the jet end 42;

[0029] The protection component 6 includes a storage bottom shell 61, the inner wall of the storage bottom shell 61 is slidably connected to a movable inner frame 62, a bent through pipe 63 is symmetrically arranged at the front of the inner cavity of the movable inner frame 62, the bottom end of the bent through pipe 63 is fixedly connected to a rubber tube sleeve 64, a transverse strip 68 is fixedly connected to the bottom of the inner wall of the movable inner frame 62, and connecting through plates 69 are symmetrically arranged on both sides of the inner cavity of the transverse strip 68 through through openings, and a through opening that can be connected to the connecting through plate 69 is also opened at the bottom of the inner cavity of the storage bottom shell 61, but the through opening is blocked by the transverse strip 68 at this time. Figure 5 As shown, the connecting plate 69 is completely offset from the bottom opening, and pressure-sensitive air cushions 610 are symmetrically arranged on the left and right sides of the inner cavity of the movable inner frame 62. External push boxes 611 are fixedly connected to the left and right sides of the outer surface of the movable inner frame 62. The external push boxes 611 on both sides can push the movable inner frame 62 sideways to make the bottom opening dock with the connecting plate 69.

[0030] The outer surface of the storage bottom shell 61 is fixedly connected to the bottom of the inner wall of the isolation outer frame 41, the number of the jet end heads 42 is two, the back of the outer surface of the jet end heads 42 is fixedly connected to the inner wall of the isolation outer frame 41, and the outer surface of the isolation outer frame 41 is fixedly connected to the front of the inner cavity of the protective shell 11. There are two bending through pipes 63, the outer surface of the bending through pipe 63 is slidably connected to the front of the inner cavity of the storage bottom shell 61 through a guide slide groove, the bottom end of the jet end head 42 is fixedly connected to the top of the inner cavity of the storage bottom shell 61 through a through hole, and the outer surface of the external push box 611 is fixedly connected to the inner wall of the isolation outer frame 41.

[0031] The device is used to produce nitrogen. The main adsorption tower 21 inside the protective shell 11 absorbs external air for preliminary separation, separates the nitrogen in the air, and then transfers it to the auxiliary adsorption tower 23 through the connecting base 22 at the bottom for further purification. Finally, high-purity nitrogen is obtained and stored in the gas storage tower 24 waiting for use.

[0032] When continuing the welding work, nitrogen is needed as the protective gas. At this time, the gas storage tower 24 delivers the internal nitrogen to the diverter 43 through the adapter 3. The diverter 43 divides the nitrogen evenly into two jet ends 42. Then the jet end 42 sprays the nitrogen to the end position of the laser welding gun through the connected rubber tube sleeve 64 for protection.

[0033] Under normal circumstances, the nitrogen gas ejected through the jet head 42 will enter the interior of the storage bottom shell 61 and then be ejected through the bent through-pipe 63. However, when the supplied nitrogen gas volume exceeds the actual usage amount, the pressure of the nitrogen gas inside the storage bottom shell 61 will increase, which will make it difficult for the nitrogen gas to be discharged to the outside. At this time, the pressure-sensitive air cushions 610 on both sides will be affected by the strong air pressure, which will trigger the external push boxes 611 on both sides. Then, the external push boxes 611 will align the misaligned connection through-disk 69 with the through-port at the bottom of the inner cavity of the storage bottom shell 61 by pushing the inner frame 62 laterally. Then, the accumulated nitrogen gas inside the storage bottom shell 61 can be discharged downward through the connection through-disk 69, thereby realizing the pressure relief work.

[0034] Example 2, please refer to Figures 1 - 7 , the present invention provides a technical solution: on the basis of Example 1, fixed bottom cylinders 65 are symmetrically arranged on both sides of the lower surface of the storage bottom shell 61 through shunt ports. A sliding inner cylinder 66 is slidably connected to the axis of the inner wall of the fixed bottom cylinder 65. A spring washer 67 is sleeved on the lower part of the outer surface of the sliding inner cylinder 66, and through-spray ports are uniformly opened at the axis of the inner cavity of the sliding inner cylinder 66. The surplus gas storage component 5 includes a wall-attached inner frame 51. One-way rotating plates 52 are uniformly arranged on the inner wall of the wall-attached inner frame 51. An arc spring 53 is fixedly connected to the lower surface of the one-way rotating plate 52. An insertion connecting plate 54 is fixedly connected to the bottom of the inner cavity of the wall-attached inner frame 51. A compression soft sleeve 55 is fixedly connected to the bottom end of the insertion connecting plate 54. After storing nitrogen gas inside the compression soft sleeve 55, it will expand under the action of air pressure and thus extend downward. The number of the fixed bottom cylinders 65 is three. The bottom ends of the fixed bottom cylinders 65 are fixedly connected to the top of the inner cavity of the wall-attached inner frame 51. The bottom end of the sliding inner cylinder 66 extends into the interior of the wall-attached inner frame 51. The outer surface of the wall-attached inner frame 51 is fixedly connected to the front part of the inner wall of the protective shell 11. The outer surface of the compression soft sleeve 55 is slidably connected to the front part of the inner wall of the protective shell 11.

[0035] The transfer component 3 includes a movable pull plate 31. A limit clip 34 is fixedly connected to the lower surface of the movable pull plate 31. A horizontal sliding cylinder 35 is fixedly connected to the inner wall of the limit clip 34. An air outlet pipe 36 is slidably connected to the left side of the inner wall of the horizontal sliding cylinder 35. An air inlet pipe 37 is slidably connected to the right side of the inner wall of the horizontal sliding cylinder 35. Since the air inlet pipe 37 and the air outlet pipe 36 always maintain a relatively fixed state, the horizontal sliding cylinder 35 can perform a sliding movement relative to the two pipes. A two-way rotating machine 38 is arranged in the middle of the inner wall of the horizontal sliding cylinder 35. Threaded rotating rods 39 are fixedly connected to both the left and right ends of the output shaft of the two-way rotating machine 38. On the front and rear sides of the inner cavity of the movable pull plate 31, tension connecting rods 32 are symmetrically arranged through through chutes. A pull rod device 33 is slidably connected to the side of the outer surface of the tension connecting rod 32 far away from the movable pull plate 31. The upper surface of the pull rod device 33 is slidably connected to the upper part of the inner wall of the protective housing 11. The left end of the air outlet pipe 36 is fixedly connected to the top of the inner cavity of the flow divider 43. The bottom end of the air inlet pipe 37 is fixedly connected to the center of the inner cavity of the air storage tower 24.

[0036] The upper surface of the movable pull plate 31 is slidably connected to the upper part of the inner wall of the protective housing 11. The left end of the two-way rotating machine 38 is inserted into the center of the inner wall of the air outlet pipe 36 through the threaded rotating rod 39. The right end of the two-way rotating machine 38 is inserted into the center of the inner wall of the air inlet pipe 37 through the threaded rotating rod 39. The outer surface of the two-way rotating machine 38 is fixedly connected to the middle of the inner wall of the horizontal sliding cylinder 35 through a clamping rod.

[0037] The gas discharged downward from the connection turntable 69 will enter the inside of the fixed bottom cylinder 65. Then, under the action of air pressure, the sliding inner cylinder 66 will be pushed downward. At this time, the center of the sliding inner cylinder 66 will be inserted into the inside of the wall-attached inner frame 51. Air is exhausted into the inside of the wall-attached inner frame 51 through the air holes at the center of the sliding inner cylinder 66. The air pressure will push the three-layer one-way rotating plate 52 downward, and then it will be filled into the inside of the compression soft sleeve 55, causing the compression soft sleeve 55 to expand. When the nitrogen supply stops, the one-way rotating plate 52 will quickly return to the horizontal state under the thrust of the arc spring 53, and the sliding inner cylinder 66 will shrink into the inside of the fixed bottom cylinder 65 under the thrust of the spring washer 67, preventing the nitrogen inside the compression soft sleeve 55 from flowing back into the inside of the storage bottom shell 61 through a double isolation method.

[0038] The air storage tower 24 supplies nitrogen to the flow divider 43 through the air inlet pipe 37 and the air outlet pipe 36. When the nitrogen passes through the horizontal sliding cylinder 35, the two-way rotating machine 38 will work, twisting the threaded rotating rods 39 on both sides. At this time, the threaded rotating rod 39 inserted into the air inlet pipe 37 will accelerate the extraction of the nitrogen inside the air inlet pipe 37, and the threaded rotating rod 39 inserted into the air outlet pipe 36 will accelerate the supply of the nitrogen inside the horizontal sliding cylinder 35 to the air outlet pipe 36. Therefore, compared with directly discharging nitrogen, using the two-way rotating machine 38 to further provide power for the flow of nitrogen in the middle can ensure that the nitrogen inside the air storage tower 24 can be supplied to the front jet device 4 even under low-pressure conditions.

[0039] When carrying out the drainage work, the upper pull rod device 33 can drive the horizontal sliding cylinder 35 to move left and right by repeatedly pulling the tension link 32, and then drive the two-way rotating machine 38 to move left and right relative to the air pipes on both sides. At this time, one end of the threaded rod 39 on both sides will be withdrawn from the inside of the air pipe, but the threaded rod 39 at the other end will be inserted deeper into the air pipe, thereby completely blocking the air pipe where it is located, and preventing the nitrogen in the air storage tower 24 from leaking.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative work shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented by conventional means in the art without special instructions and limitations.

Claims

1. A nitrogen generator for a handheld laser welding machine, comprising a nitrogen generation box (1), characterized in that: The nitrogen generation box (1) includes a protective shell (11). A control panel (12) is fixedly connected to the back of the inner cavity of the protective shell (11). A moving base (13) is arranged at the bottom of the protective shell (11). Side protection plates (14) are symmetrically arranged on both sides of the outer surface of the protective shell (11). A nitrogen generator (2) is arranged at the bottom of the inner wall of the protective shell (11). An air jetting device (4) is arranged at the front part of the inner wall of the protective shell (11). A residual gas storage component (5) is arranged at the bottom of the air jetting device (4); The nitrogen generator (2) includes a main adsorption tower (21). A connecting base (22) is arranged at the bottom of the main adsorption tower (21). A secondary adsorption tower (23) is fixedly connected to one side of the connecting base (22) away from the main adsorption tower (21). A gas storage tower (24) is fixedly connected to the back of the inner cavity of the connecting base (22) through a transfer pipe. A transfer component (3) is arranged at the top of the gas storage tower (24); The air jetting device (4) includes an isolation outer frame (41). Air jetting ends (42) are symmetrically arranged on both sides of the inner wall of the isolation outer frame (41). A flow divider (43) is fixedly connected to the top of the inner cavity of the air jetting end (42). A protection component (6) is fixedly connected to the bottom end of the air jetting end (42); The protection component (6) includes a storage bottom shell (61). A moving inner frame (62) is slidably connected to the inner wall of the storage bottom shell (61). Bent through pipes (63) are symmetrically arranged at the front part of the inner cavity of the moving inner frame (62). A rubber pipe sleeve (64) is fixedly connected to the bottom end of the bent through pipe (63). A horizontal strip plate (68) is fixedly connected to the bottom of the inner wall of the moving inner frame (62). Connecting through disks (69) are symmetrically arranged on both sides of the inner cavity of the horizontal strip plate (68) through through holes. Pressure-sensitive air cushions (610) are symmetrically arranged on the left and right sides of the inner cavity of the moving inner frame (62). External push boxes (611) are fixedly connected to the left and right sides of the outer surface of the moving inner frame (62); The transfer component (3) includes a moving pull plate (31). A limit clip (34) is fixedly connected to the lower surface of the moving pull plate (31). A horizontal sliding cylinder (35) is fixedly connected to the inner wall of the limit clip (34). An air outlet pipe (36) is slidably connected to the left side of the inner wall of the horizontal sliding cylinder (35). An air inlet pipe (37) is slidably connected to the right side of the inner wall of the horizontal sliding cylinder (35). A two-way rotating machine (38) is arranged in the middle of the inner wall of the horizontal sliding cylinder (35). Threaded rotating rods (39) are fixedly connected to both the left and right ends of the output shaft of the two-way rotating machine (38); On both the front and rear sides of the inner cavity of the movable pull plate (31), tension connecting rods (32) are symmetrically arranged through through-chutes. On the side of the outer surface of the tension connecting rod (32) away from the movable pull plate (31), a pull rod device (33) is slidably connected. The upper surface of the pull rod device (33) is slidably connected to the upper part of the inner wall of the protective housing (11). The left end of the air outlet pipe (36) is fixedly connected to the top of the inner cavity of the flow divider (43). The bottom end of the air inlet pipe (37) is fixedly connected to the axis of the inner cavity of the air storage tower (24).

2. The nitrogen generator for a hand-held laser welding machine according to claim 1, wherein: The outer surface of the storage bottom shell (61) is fixedly connected to the bottom of the inner wall of the isolation outer frame (41). The number of the jet nozzles (42) is two. The back of the outer surface of the jet nozzle (42) is fixedly connected to the inner wall of the isolation outer frame (41). The outer surface of the isolation outer frame (41) is fixedly connected to the front part of the inner cavity of the protective housing (11).

3. The nitrogen generator for a hand-held laser welding machine according to claim 2, wherein: The number of the bent through pipes (63) is two. The outer surface of the bent through pipe (63) is slidably connected to the front part of the inner cavity of the storage bottom shell (61) through a guiding chute. The bottom end of the jet nozzle (42) is fixedly connected to the top of the inner cavity of the storage bottom shell (61) through a through port. The outer surface of the external push box (611) is fixedly connected to the inner wall of the isolation outer frame (41).

4. The nitrogen generator for a hand-held laser welding machine according to claim 3, characterized in that: On both sides of the lower surface of the storage bottom shell (61), fixed bottom cylinders (65) are symmetrically arranged through diversion ports. A sliding inner cylinder (66) is slidably connected to the axis of the inner wall of the fixed bottom cylinder (65). A spring washer (67) is sleeved on the lower part of the outer surface of the sliding inner cylinder (66). And through spray nozzles are evenly arranged at the axis of the inner cavity of the sliding inner cylinder (66).

5. The nitrogen generator for a hand-held laser welding machine according to claim 4, characterized in that: The residual air storage component (5) includes an inner wall-attached frame (51). One-way rotating plates (52) are evenly arranged on the inner wall of the inner wall-attached frame (51). An arc spring (53) is fixedly connected to the lower surface of the one-way rotating plate (52). An insertion connecting plate (54) is fixedly connected to the bottom of the inner cavity of the inner wall-attached frame (51). A compression soft sleeve (55) is fixedly connected to the bottom end of the insertion connecting plate (54).

6. The nitrogen generator for a hand-held laser welding machine according to claim 5, wherein: The number of the fixed bottom cylinders (65) is three. The bottom end of the fixed bottom cylinder (65) is fixedly connected to the top of the inner cavity of the inner wall-attached frame (51). The bottom end of the sliding inner cylinder (66) extends into the inside of the inner wall-attached frame (51). The outer surface of the inner wall-attached frame (51) is fixedly connected to the front part of the inner wall of the protective housing (11). The outer surface of the compression soft sleeve (55) is slidably connected to the front part of the inner wall of the protective housing (11).

7. The nitrogen generator for the handheld laser welding machine according to claim 1, wherein: The upper surface of the movable pull plate (31) is slidably connected to the upper part of the inner wall of the protective housing (11). The left end of the bidirectional rotating machine (38) is inserted into the axis of the inner wall of the air outlet pipe (36) through a threaded rod (39). The right end of the bidirectional rotating machine (38) is inserted into the axis of the inner wall of the air inlet pipe (37) through a threaded rod (39). The outer surface of the bidirectional rotating machine (38) is fixedly connected to the middle part of the inner wall of the horizontal sliding cylinder (35) through a clamping rod.

Images