Nitrogen making machine for handheld laser welding machine

Abstract

The invention belongs to the technical field of nitrogen making equipment, and particularly relates to a nitrogen making machine for a handheld laser welding machine, which comprises a nitrogen making case, the nitrogen making case comprises a protective shell, the back of the inner cavity of the protective shell is fixedly connected with a control panel, and the bottom of the protective shell is provided with a movable base. Side protection plates are symmetrically arranged on the two sides of the outer surface of the protection shell, and a nitrogen generator is arranged at the bottom of the inner wall of the protection shell. Due to the fact that nitrogen is sprayed out through a gas spraying end, a large amount of nitrogen is prone to being accumulated at a rubber pipe sleeve connected with the gas spraying end due to the fact that nitrogen is not discharged in time, the connecting position of a pipe body is prone to being exploded due to high pressure, and then the problem of nitrogen leakage is solved. And the connecting through disc at the bottom can be automatically opened for pressure relief work, and the problem that the pipe body connecting position is in a high-pressure state all the time and then bursts due to exceeding the load is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of nitrogen generating equipment, in particular to a nitrogen generating machine for a handheld laser welding machine. Background Art

[0002] At present, nitrogen production in nitrogen production mechanisms usually adopts membrane separation nitrogen production technology or pressure swing adsorption nitrogen production technology. Membrane separation nitrogen production technology is a technology that uses high molecular hollow fiber membranes to separate nitrogen, oxygen and other gases in the air by using different solubility and diffusion coefficients of gas molecules such as nitrogen and oxygen in the membrane, thereby having different permeation rates, to produce nitrogen or oxygen. Its principle is to separate the gas mixture by using the difference in the "adsorption" performance of molecular sieves to different gas molecules. It uses air as raw material and uses a high-efficiency, high-selectivity solid adsorbent to selectively adsorb nitrogen and oxygen to separate nitrogen and oxygen from the air.

[0003] Since nitrogen will be supplied to the location of the laser end through the injection component after production is completed, the nitrogen will be drained through connecting pipes such as hoses at the nozzle. However, the gas pressure generated by the release of nitrogen is generally large. When the tube moves with the welding gun, the nitrogen pressure at the connection end is prone to excessive due to bending problems, which in turn easily leads to nitrogen leakage problems, so improvements are 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 the technical problems is: a nitrogen generator for a handheld laser welder, comprising a nitrogen generator case, the nitrogen generator case comprising a protective shell, a control panel is fixedly connected to the back of the inner cavity of the protective shell, a movable base is arranged at the bottom of the protective shell, side protection plates are symmetrically arranged on both sides of the outer surface of the protective shell, a nitrogen generator is arranged at the bottom of the inner wall of the protective shell, a jet device is arranged at the front of the inner wall of the protective shell, and a residual gas storage component is arranged at the bottom of the jet device;

[0005] The nitrogen generator comprises a main adsorption tower, a connecting base is provided at the bottom of the main adsorption tower, a secondary adsorption tower is fixedly connected to the connecting base on a side 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 tube, and the generated nitrogen is stored in the gas storage tower for use through the separation processing of the two groups of adsorption towers, and a transfer component is provided on the top of the gas storage tower;

[0006] The jetting device comprises an isolation outer frame, and 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 protective component is fixedly connected to the bottom of the jetting end;

[0007] The protective component includes a storage bottom shell, the inner wall of the storage bottom shell is slidably connected to a movable inner frame, the front part of the inner cavity of the movable inner frame is symmetrically provided with a bent through pipe, the bottom end of the bent through pipe is fixedly connected to a rubber tube sleeve, the bottom of the inner wall of the movable inner frame is fixedly connected to a transverse strip, and the two sides of the inner cavity of the transverse strip are symmetrically provided with connecting through plates through through-holes, and a through hole that can be connected to the connecting through plate is also opened at the bottom of the inner cavity of the storage bottom shell, but the through hole is blocked by the transverse strip at this time, such as Figure 5 As shown, the connecting plate is completely staggered from the through-hole at the bottom, and pressure-sensitive air cushions are symmetrically arranged on the left and right sides of the inner cavity of the movable inner frame. External push boxes are fixedly connected to the left and right sides of the outer surface of the movable inner frame. The external push boxes on both sides can push the movable inner frame sideways to make the through-hole at the bottom dock with the connecting plate.

[0008] Furthermore, 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 the jet end heads is two, the back of the outer surface of the jet end heads is fixedly connected to the inner wall of the isolation outer frame, and the outer surface of the isolation outer frame is fixedly connected to the front of the inner cavity of the protective shell. The number of the bent through pipes is two, the outer surface of the bent through pipes is slidably connected to the front of the inner cavity of the storage bottom shell through a guide slide groove, the bottom end of the jet end head is fixedly connected to the top of the inner cavity of the storage bottom shell through a through hole, and the outer surface of the external push box is fixedly connected to the inner wall of the isolation outer frame.

[0009] Furthermore, fixed bottom cylinders are symmetrically arranged on both sides of the lower surface of the storage bottom shell through the diversion port, 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, and a through nozzle is 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, a one-way rotating plate is 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, a plug-in connecting plate is fixedly connected to the bottom of the inner cavity of the wall-attached inner frame, and a compression soft sleeve is fixedly connected to the bottom end of the plug-in connecting plate, and after the nitrogen is stored in the compression soft sleeve, it will expand under the action of air pressure, thereby extending downward. There are three fixed bottom cylinders, the bottom end of which 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 to the interior of the wall-attached inner frame, the outer surface of the wall-attached inner frame is fixedly connected to the front of the inner wall of the protective outer shell, and the outer surface of the compression soft sleeve is slidably connected to the front of the inner wall of the protective outer 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 structural schematic diagram 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 Figure 1-Figure 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 injected through the jet end 42 will enter the interior of the storage bottom shell 61 and then be ejected through the bent through pipe 63. However, when the amount of nitrogen supplied exceeds the actual usage, the pressure of the nitrogen inside the storage bottom shell 61 will increase, which will make it difficult to discharge the nitrogen to the outside. At this time, the pressure-sensitive air cushions 610 on both sides will be affected by the strong air pressure, thereby triggering the external push boxes 611 on both sides. Then the external push boxes 611 move the inner frame 62 by side pushing, so that the misaligned connecting plate 69 is aligned with the opening at the bottom of the inner cavity of the storage bottom shell 61. Then the nitrogen accumulated in the storage bottom shell 61 can be discharged downward through the connecting plate 69, thereby achieving pressure relief.

[0034] Example 2, please refer to Figure 1-Figure 7 The present invention provides a technical solution: on the basis of the first embodiment, both sides of the lower surface of the storage bottom shell 61 are symmetrically provided with fixed bottom cylinders 65 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 a through nozzle is evenly opened at the axis of the inner cavity of the sliding inner cylinder 66. The residual gas storage component 5 includes a wall-attached inner frame 51, a one-way rotating plate 52 is evenly provided 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, a plug-in connecting plate 54 is fixedly connected to the bottom of the inner cavity of the wall-attached inner frame 51, and a compression soft sleeve 55 is fixedly connected to the bottom end of the plug-in connecting plate 54. After the nitrogen is stored in the compression soft sleeve 55, it will expand under the action of air pressure, thereby extending downward. There are three fixed bottom cylinders 65, the bottom end of which is 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 to 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 of the inner wall of the protective outer shell 11, and the outer surface of the compression soft sleeve 55 is slidably connected to the front of the inner wall of the protective outer shell 11.

[0035] The adapter component 3 includes a movable pull plate 31, the lower surface of which is fixedly connected to a limit clamp 34, the inner wall of the limit clamp 34 is fixedly connected to a horizontal slide 35, the left side of the inner wall of the horizontal slide 35 is slidably connected to an air outlet pipe 36, and the right side of the inner wall of the horizontal slide 35 is slidably connected to an air inlet pipe 37. Since the air inlet pipe 37 and the air outlet pipe 36 always remain in a relatively fixed state, the horizontal slide 35 can slide relative to the two pipes. A two-way rotating machine 38 is provided in the middle of the inner wall of the horizontal slide 35, and the left and right ends of the output shaft of the two-way rotating machine 38 are fixedly connected to threaded rotating rods 39. Tension links 32 are symmetrically arranged on the front and rear sides of the inner cavity of the movable pull plate 31 through a through slide groove, and a pull rod device 33 is slidably connected to the outer surface of the tension link 32 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 shell 11, the left end of the air outlet pipe 36 is fixedly connected to the top of the inner cavity of the diverter 43, and the bottom end of the air inlet pipe 37 is fixedly connected to the axis of the inner cavity of the gas 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 shell 11, the left end of the two-way rotating machine 38 is plugged into the axis of the inner wall of the outlet pipe 36 through a threaded rotating rod 39, the right end of the two-way rotating machine 38 is plugged into the axis of the inner wall of the inlet pipe 37 through a threaded rotating rod 39, and the outer surface of the two-way rotating machine 38 is fixedly connected to the middle part of the inner wall of the horizontal slide cylinder 35 through a clamping rod.

[0037] The gas discharged downward from the connecting disk 69 will enter the interior of the fixed bottom cylinder 65, and then, under the action of air pressure, push the sliding inner cylinder 66 downward. At this time, the axis of the sliding inner cylinder 66 is inserted into the interior of the wall-attached inner frame 51, and the air is exhausted to the interior of the wall-attached inner frame 51 through the air holes at the axis of the sliding inner cylinder 66. The air pressure pushes the three-layer one-way rotating plate 52 downward, and then fills into the interior 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 a horizontal state under the thrust of the arc spring 53, and the sliding inner cylinder 66 will shrink to the interior of the fixed bottom cylinder 65 under the thrust of the spring washer 67, thereby preventing the nitrogen inside the compression soft sleeve 55 from flowing back to the interior of the storage bottom shell 61 through double isolation.

[0038] The gas storage tower 24 supplies nitrogen to the diverter 43 through the air inlet pipe 37 and the air outlet pipe 36. When the nitrogen passes through the horizontal slide cylinder 35, the two-way rotary machine 38 will work to twist 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 nitrogen from the air inlet pipe 37, and the threaded rotating rod 39 inserted into the air outlet pipe 36 will accelerate the supply of nitrogen from the horizontal slide cylinder 35 to the air outlet pipe 36. Therefore, compared with directly discharging nitrogen, the use of the two-way rotary machine 38 in the middle part further provides power for the flow of nitrogen, thereby ensuring that the nitrogen inside the gas storage tower 24 can also be supplied to the injection equipment 4 in front under low pressure conditions.

[0039] When performing drainage work, the pull rod 33 located at the top can repeatedly pull the tension link 32 to drive the horizontal slide 35 to slide left and right by moving the pull plate 31, so that the two-way rotating machine 38 can slide left and right relative to the air pipes on both sides. At this time, the threaded rotating rod 39 on both sides will have one end of the threaded rotating rod 39 pulled out from the inside of the air pipe, but the threaded rotating rod 39 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 24.

[0040] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A nitrogen generator for a handheld laser welder, comprising a nitrogen generator box (1), characterized in that: The nitrogen generator box (1) comprises 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), an injection 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 injection device (4); The nitrogen generator (2) comprises 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), a gas storage tower (24) is fixedly connected to the back of the inner cavity of the connecting base (22) via a transfer tube, and a transfer component (3) is provided at the top of the gas storage tower (24); The jetting device (4) comprises an isolation outer frame (41), 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 jetting end head (42), and a protective component (6) is fixedly connected to the bottom end of the jetting end head (42); The protective component (6) comprises a storage bottom shell (61), the inner wall of the storage bottom shell (61) is slidably connected to a movable inner frame (62), a front portion of the inner cavity of the movable inner frame (62) is symmetrically provided with a bending tube (63), the bottom end of the bending tube (63) is fixedly connected to a rubber tube sleeve (64), a bottom portion of the inner wall of the movable inner frame (62) is fixedly connected to a transverse strip (68), both sides of the inner cavity of the transverse strip (68) are symmetrically provided with connecting plates (69) through through openings, pressure-sensitive air cushions (610) are symmetrically provided on the left and right sides of the inner cavity of the movable inner frame (62), and an external push box (611) is fixedly connected to the left and right sides of the outer surface of the movable inner frame (62).

2. The nitrogen generator for a handheld laser welder according to claim 1, characterized in that: 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).

3. The nitrogen generator for a handheld laser welder according to claim 2, characterized in that: There are two bent through tubes (63), the outer surface of which is slidably connected to the front of the inner cavity of the storage bottom shell (61) via a guide 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) via a through opening, and 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 handheld laser welder according to claim 3, characterized in that: Fixed bottom cylinders (65) are symmetrically arranged on both sides of the lower surface of the storage bottom shell (61) 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 nozzles are evenly opened at the axis of the inner cavity of the sliding inner cylinder (66).

5. The nitrogen generator for a handheld laser welder according to claim 4, characterized in that: The residual gas storage component (5) comprises a wall-attached inner frame (51), the inner wall of the wall-attached inner frame (51) is evenly provided with one-way rotating plates (52), the lower surface of the one-way rotating plate (52) is fixedly connected to an arc spring (53), the bottom of the inner cavity of the wall-attached inner frame (51) is fixedly connected to a plug-in connecting plate (54), and the bottom end of the plug-in connecting plate (54) is fixedly connected to a compression soft sleeve (55).

6. The nitrogen generator for a handheld laser welder according to claim 5, characterized in that: 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 wall-adhering inner frame (51), the bottom end of the sliding inner cylinder (66) extends to the inside of the wall-adhering inner frame (51), the outer surface of the wall-adhering inner frame (51) is fixedly connected to the front part of the inner wall of the protective outer shell (11), and the outer surface of the compression soft sleeve (55) is slidably connected to the front part of the inner wall of the protective outer shell (11).

7. The nitrogen generator for a handheld laser welder according to claim 1, characterized in that: The transfer component (3) comprises a movable pull plate (31), the lower surface of the movable pull plate (31) is fixedly connected to a limit clamp (34), the inner wall of the limit clamp (34) is fixedly connected to a horizontal slide (35), the left side of the inner wall of the horizontal slide (35) is slidably connected to an air outlet pipe (36), the right side of the inner wall of the horizontal slide (35) is slidably connected to an air inlet pipe (37), a bidirectional rotating machine (38) is arranged in the middle of the inner wall of the horizontal slide (35), and the left and right ends of the output shaft of the bidirectional rotating machine (38) are fixedly connected to threaded rotating rods (39).

8. The nitrogen generator for a handheld laser welder according to claim 7, characterized in that: The front and rear sides of the inner cavity of the movable pull plate (31) are symmetrically provided with tension links (32) through a through-slide groove, and the outer surface of the tension link (32) is slidably connected to a pull rod device (33) on the side away from the movable pull plate (31), and the upper surface of the pull rod device (33) is slidably connected to the upper part of the inner wall of the protective shell (11), the left end of the air outlet pipe (36) is fixedly connected to the top of the inner cavity of the diverter (43), and 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).

9. The nitrogen generator for a handheld laser welder according to claim 8, characterized in that: The upper surface of the movable pull plate (31) is slidably connected to the upper part of the inner wall of the protective shell (11); the left end of the bidirectional rotating machine (38) is plugged into the axis of the inner wall of the outlet pipe (36) through a threaded rotating rod (39); the right end of the bidirectional rotating machine (38) is plugged into the axis of the inner wall of the inlet pipe (37) through a threaded rotating rod (39); and the outer surface of the bidirectional rotating machine (38) is fixedly connected to the middle part of the inner wall of the horizontal slide cylinder (35) through a clamping rod.

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