Building steel structure welding quality automatic detection equipment
By designing automatic welding quality inspection equipment for building steel structures, using electric sliding tables and multiple detection components to achieve automation and comprehensiveness of weld inspection, the problems of numerous inspection tools and inefficiency in the existing technology are solved, and the efficiency and accuracy of weld inspection are improved.
Patent Information
- Application Number
- CN202411684111.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-03-21
AI Technical Summary
There are many tools for existing weld detection technology, making it difficult to achieve rapid and automated detection, and ultrasonic flaw detection requires additional coupling agent coating, which reduces work efficiency.
An automatic detection equipment for welding quality of building steel structures is designed, including electric sliding tables, cameras, physical detection components and ultrasonic detection components. Through the movement of the electric sliding table, the camera and detection components move along the weld, realizing the automatic application of image acquisition and multiple detection methods, and at the same time, the automatic coating of coupling agent is realized through the coating component.
It realizes comprehensiveness and automation of weld quality inspection, improves detection efficiency, and reduces the complexity and error of manual operation.
Smart Images

Figure CN119666988A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of weld detection, and in particular to automatic detection equipment for welding quality of building steel structures. Background Art
[0002] A weld is a seam formed by melting the electrode and the metal at the joint using the high temperature of the welding heat source. After the weld metal cools, the two weldments are connected into a whole. In order to ensure the quality of welding, the weld needs to be inspected to ensure the integrity, reliability, safety and usability of the welded structure.
[0003] In the prior art, weld inspection not only requires measuring the concave and convex data of the weld, but also requires visual inspection of the height of the weld edge and whether there are cracks, bubbles, etc. in the weld. In addition, it is also necessary to measure whether there are defects such as pores, inclusions or fractures inside the weld. This leads to a large number of inspection tools, which is not conducive to the rapid and automated inspection work. In addition, when using ultrasonic flaw detection, an additional coupling agent coating operation is required, which further reduces work efficiency. Summary of the invention
[0004] The purpose of the present invention is to provide an automatic detection device for the welding quality of building steel structures to solve the technical problems in the prior art.
[0005] The present invention provides an automatic detection device for welding quality of building steel structures, comprising:
[0006] An electric slide, both ends of which are provided with fixing components, and the moving end of the electric slide is provided with two fixing blocks;
[0007] A camera, the camera is fixed on the moving end of the electric slide, and the camera is used for visual inspection of the weld;
[0008] Two mounting plates, both of which are arranged on the moving end of the electric slide, one of which is provided with a physical detection component, and the other of which is provided with an ultrasonic detection component;
[0009] A coating component, the coating component is arranged on one of the mounting plates, and the coating component is used to apply coupling agent to the weld;
[0010] A power assembly is fixed to one of the fixing blocks and is used for extruding the coupling agent.
[0011] Preferably, the fixing assembly comprises:
[0012] A connecting plate, the connecting plate being fixed to the end of the electric slide;
[0013] A connecting seat, the connecting seat and the connecting plate are fixed, and a rectangular hole is formed through a side wall of the connecting seat;
[0014] An electromagnet, wherein the electromagnet is fixed in the rectangular hole;
[0015] Two connecting blocks, the two connecting blocks are respectively fixed on the top and bottom of the connecting seat, and each connecting block is slidably connected to the rod body;
[0016] A plate body, wherein the plate body and the two rod bodies are fixed;
[0017] A strong magnet, wherein the strong magnet is fixed to the plate body, a first spring is fixed to the side wall of the strong magnet, and the first spring is fixed to the electromagnet;
[0018] Two clamping plates, the two clamping plates are rotatably connected to the two rods respectively, and the side walls of the two clamping plates are penetrated by rubber rings, and the rubber rings are in contact with the clamping plates;
[0019] The baffle is fixed on the bottom of the connecting plate.
[0020] Preferably, the physical detection component comprises:
[0021] A connecting shaft, wherein the connecting shaft is slidably connected to one of the mounting plates;
[0022] A connecting frame, wherein the connecting frame and the connecting shaft are fixed;
[0023] A third spring, wherein the third spring is fixed on the connecting frame, and the third spring is fixed to a nearby mounting plate;
[0024] Two support assemblies, both of which are fixed to the bottom of the third spring;
[0025] The measuring component is arranged at the bottom of the connecting frame between the two supporting components.
[0026] Preferably, the support assembly comprises:
[0027] A fixing rod is fixed to the bottom of the connecting frame, and a second ball is rotatably arranged at the bottom of the fixing rod.
[0028] Preferably, the measuring component comprises:
[0029] A transmission rod, the transmission rod is slidably arranged on a connecting frame, and a first ball is arranged at the bottom of the connecting frame;
[0030] A force sensor, wherein the force sensor is fixed to the transmission rod;
[0031] A fourth spring is fixed on the connecting frame, and the fourth spring and the force sensor are fixed.
[0032] Preferably, the coating assembly comprises:
[0033] An output seat, the output seat is fixed at the bottom of the connecting frame, and a feed pipe is provided through the side wall of the output seat;
[0034] A storage bottle, the storage bottle is fixed on one of the fixing blocks, and a solenoid valve is provided through a side wall of the storage bottle;
[0035] A hose, one end of which is connected to the solenoid valve, a counterweight is fixed to the end of the hose, and the feed pipe is connected to the other end of the solenoid valve.
[0036] Preferably, the power assembly comprises:
[0037] A gas supply bottle, the gas supply bottle is fixed to another fixing block;
[0038] Two pistons, both of which are slidably disposed in the gas supply bottle, and both of which have connecting rods fixed to their side walls;
[0039] a second spring, the second spring being fixed between the two pistons;
[0040] A first one-way valve, which is disposed through the side wall of the gas supply bottle;
[0041] A connecting pipe, one end of which is connected to the storage bottle, and the other end of which is connected to the first one-way valve;
[0042] A second one-way valve is provided through the side wall of the gas supply bottle.
[0043] Preferably, the ultrasonic detection component comprises:
[0044] An ultrasonic flaw detector is fixed to a mounting plate.
[0045] Compared with the prior art, the beneficial effects of the present invention are:
[0046] The present invention provides an electric slide, a camera, a physical detection component and an ultrasonic detection component. Through the operation of the electric slide, the camera can move along the weld to capture images of the weld and provide image data for quality inspection of the weld. During the operation of the electric slide, the two mounting plates are also driven to move along the weld. During this process, the height difference of the weld is measured by the physical detection component, and the welding condition inside the weld is measured by the ultrasonic detection component, thereby ensuring the comprehensiveness of the weld quality inspection. In addition, the coating component realizes automatic coating of the coupling agent and improves the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0047] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0048] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;
[0049] Figure 2 It is a schematic diagram of the structure of the gas supply bottle, the first one-way valve and the connecting pipe of the present invention;
[0050] Figure 3 It is a schematic diagram of the cross-sectional structure of the connecting seat of the present invention;
[0051] Figure 4 It is a schematic diagram of the electric slide, mounting plate and camera structure of the present invention;
[0052] Figure 5 It is a front view structural diagram of the fixing block, storage bottle and gas supply bottle of the present invention;
[0053] Figure 6 It is a schematic diagram of the cross-sectional structure of the gas supply bottle of the present invention;
[0054] Figure 7 It is a schematic diagram of the cross-sectional structure of the storage bottle of the present invention;
[0055] Figure 8 It is a schematic diagram of the structure of the transmission rod, the fourth spring and the force sensor of the present invention;
[0056] Fig. 9 It is a schematic diagram of the fixing rod and the second ball structure of the present invention.
[0057] Reference numerals:
[0058] 1. Electric slide; 2. Storage bottle; 3. Gas supply bottle; 4. Connecting plate; 5. Connecting seat; 6. Connecting pipe; 7. First one-way valve; 8. Electromagnet; 9. First spring; 10. Strong magnet; 11. Plate; 12. Connecting block; 13. Rod; 14. Rubber ring; 15. Clamping plate; 16. Baffle; 17. Camera; 18. Mounting plate; 19. Ultrasonic flaw detector; 20. Solenoid valve; 21. Feed pipe; 22. Output seat; 23. Second one-way valve; 24. Fixed block; 25. Connecting rod; 26. Piston; 27. Second spring; 28. Hose; 29. Counterweight; 30. Connecting shaft; 31. Third spring; 32. Connecting frame; 33. Transmission rod; 34. Fourth spring; 35. Force sensor; 36. First ball; 37. Fixed rod; 38. Second ball. DETAILED DESCRIPTION
[0059] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0060] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.
[0061] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.
[0062] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0064] Combine the following Figures 1 to 9 As shown, an embodiment of the present invention provides an automatic detection device for welding quality of building steel structures, comprising:
[0065] The electric slide 1 has fixed components at both ends, and the moving end of the electric slide 1 has two fixed blocks 24;
[0066] Camera 17, the camera 17 is fixed on the moving end of the electric slide 1, and the camera 17 is used for visual inspection of the weld;
[0067] Two mounting plates 18, both mounting plates 18 are arranged on the moving end of the electric slide 1, one mounting plate 18 is provided with a physical detection component, and the other mounting plate 18 is provided with an ultrasonic detection component;
[0068] A coating component, which is disposed on one of the mounting plates 18 and is used to apply coupling agent to the weld;
[0069] A power assembly is fixed to one of the fixing blocks 24, and the power assembly is used to extrude the coupling agent.
[0070] Through the operation of the electric slide 1, the camera 17 can move along the weld to capture images of the weld and provide image data for the quality inspection of the weld. During the operation of the electric slide 1, the two mounting plates 18 are also driven to move along the weld. During this process, the height difference of the weld is measured by the physical detection component, and the welding condition inside the weld is measured by the ultrasonic detection component, thereby ensuring the comprehensiveness of the weld quality inspection.
[0071] Furthermore, the fixing assembly includes:
[0072] A connecting plate 4, the connecting plate 4 is fixed to the end of the electric slide 1;
[0073] A connecting seat 5, the connecting seat 5 and the connecting plate 4 are fixed, and a rectangular hole is formed through the side wall of the connecting seat 5;
[0074] The electromagnet 8 is fixed in the rectangular hole;
[0075] Two connecting blocks 12, the two connecting blocks 12 are respectively fixed on the top and bottom of the connecting seat 5, and each connecting block 12 is slidably connected to the rod body 13;
[0076] The plate body 11 is fixed to the two rod bodies 13;
[0077] A strong magnet 10, the strong magnet 10 and the plate 11 are fixed, a first spring 9 is fixed to the side wall of the strong magnet 10, and the first spring 9 and the electromagnet 8 are fixed;
[0078] Two clamping plates 15, the two clamping plates 15 are rotatably connected to the two rod bodies 13 respectively, and the side walls of the two clamping plates 15 are penetrated by rubber rings 14, and the rubber rings 14 are in contact with the clamping plates 15;
[0079] The baffle plate 16 is fixed to the bottom of the connecting plate 4 .
[0080] The end of the connecting seat 5 is brought into contact with the steel structure, and then the clamping plate 15 is rotated to achieve preliminary fixation of the device and the steel structure through the clamping plate 15, the rod body 13, the plate body 11, the connecting block 12 and the connecting seat 5;
[0081] When the switch of the electromagnet 8 is turned on, the electromagnet 8 directly adsorbs the steel structure when working, so as to further fix the device. When the electromagnet 8 is working, the repulsive force between the electromagnet 8 and the strong magnet 10 makes the plate body 11 move away from the connecting seat 5, and then the clamping plate 15 is driven to contact the steel structure through the rod body 13, so as to finally fix the device and the steel structure.
[0082] Furthermore, the physical detection component includes:
[0083] A connecting shaft 30, wherein the connecting shaft 30 is slidably connected to one of the mounting plates 18;
[0084] A connecting frame 32, the connecting frame 32 and the connecting shaft 30 are fixed;
[0085] A third spring 31, the third spring 31 is fixed on the connecting frame 32, and the third spring 31 is fixed to the nearest mounting plate 18;
[0086] Two support assemblies, both of which are fixed to the bottom of the third spring 31;
[0087] The measuring assembly is arranged at the bottom of the connecting frame 32 between the two supporting assemblies.
[0088] Furthermore, the support assembly includes:
[0089] The fixing rod 37 is fixed to the bottom of the connecting frame 32 , and a second ball 38 is rotatably arranged at the bottom of the fixing rod 37 .
[0090] Further, the measuring component comprises:
[0091] A transmission rod 33, the transmission rod 33 is slidably disposed on the connecting frame 32, and a first ball 36 is disposed at the bottom of the connecting frame 32;
[0092] A force sensor 35, wherein the force sensor 35 is fixed to the transmission rod 33;
[0093] The fourth spring 34 is fixed on the connecting frame 32 , and the fourth spring 34 and the force sensor 35 are fixed.
[0094] Under the action of the third spring 31, the two second balls 38 abut against the two sides of the weld of the steel structure, and the first ball 36 abuts against the weld. The switch of the electric slide 1 is turned on, and the first ball 36 is controlled by the electric slide 1 to move along the weld.
[0095] When the weld is convex or concave, the transmission rod 33 slides up and down. At this time, the surface condition of the weld can be measured through the signal change of the force sensor 35 to make a preliminary judgment on the welding quality.
[0096] Further, the coating assembly includes:
[0097] The output seat 22 is fixed to the bottom of the connecting frame 32, and a feed pipe 21 is provided through the side wall of the output seat 22;
[0098] A storage bottle 2, the storage bottle 2 is fixed on one of the fixing blocks 24, and a solenoid valve 20 is provided through the side wall of the storage bottle 2;
[0099] The hose 28 is connected to one end of the solenoid valve 20 , a counterweight 29 is fixed to the end of the hose 28 , and the feed pipe 21 is connected to the other end of the solenoid valve 20 .
[0100] When the solenoid valve 20 is turned on, the coupling agent in the storage bottle 2 enters the output seat 22 through the hose 28, the solenoid valve 20 and the feed pipe 21 under the action of the high pressure in the storage bottle 2, and is coated on the weld through the output seat 22. As the electric slide 1 works, the coupling agent is coated on the welds at various locations of the steel structure.
[0101] Furthermore, the power assembly includes:
[0102] A gas supply bottle 3, the gas supply bottle 3 is fixed to another fixing block 24;
[0103] Two pistons 26, both pistons 26 are slidably disposed in the gas supply bottle 3, and connecting rods 25 are fixed to the side walls of the two pistons 26;
[0104] A second spring 27, the second spring 27 is fixed between the two pistons 26;
[0105] A first one-way valve 7, which is disposed through the side wall of the gas supply bottle 3;
[0106] A connecting tube 6, one end of which is connected to the storage bottle 2, and the other end of which is connected to the first one-way valve 7;
[0107] The second one-way valve 23 is arranged on the side wall of the gas supply bottle 3 through the second one-way valve 23 .
[0108] Furthermore, the ultrasonic detection component includes:
[0109] The ultrasonic flaw detector 19 is fixed to the mounting plate 18 .
[0110] When the electric slide 1 is working, after the moving end of the electric slide 1 moves to the end, the connecting rod 25 on the gas supply bottle 3 contacts the baffle 16, so that the corresponding piston 26 moves along the gas supply bottle 3, compressing the second spring 27 while pressing the gas into the storage bottle 2 through the first one-way valve 7 and the connecting pipe 6, so that the storage bottle 2 is in a high-pressure environment. During the reciprocating process of the electric slide 1, the two connecting rods 25 ensure that there is sufficient gas pressure inside the storage bottle 2;
[0111] Ultrasonic testing of the weld is performed using an ultrasonic flaw detector 19 .
[0112] The specific working method is: when in use, first rotate the clamping plate 15 to make the end of the connecting seat 5 contact the steel structure, and then rotate the clamping plate 15 to achieve the initial fixation of the device and the steel structure through the clamping plate 15, the rod body 13, the plate body 11, the connecting block 12 and the connecting seat 5;
[0113] When the switch of the electromagnet 8 is turned on, the electromagnet 8 directly adsorbs the steel structure when working, so as to further fix the device. When the electromagnet 8 is working, the repulsive force between the electromagnet 8 and the strong magnet 10 causes the plate 11 to move away from the connecting seat 5, and then the clamping plate 15 is driven to contact the steel structure through the rod 13, so as to finally fix the device and the steel structure.
[0114] After the device is fixed, under the action of the third spring 31, the two second balls 38 abut against the two sides of the weld of the steel structure, and the first ball 36 abuts against the weld. The switch of the electric slide 1 is turned on, and the first ball 36 is controlled by the electric slide 1 to move along the weld.
[0115] When the weld is convex or concave, the transmission rod 33 slides up and down. At this time, the surface condition of the weld can be measured through the signal change of the force sensor 35 to make a preliminary judgment on the welding quality. At the same time, the camera 17 collects images of the weld to provide image reference for the judgment of the weld quality.
[0116] When the electric slide 1 is working, after the moving end of the electric slide 1 moves to the end, the connecting rod 25 on the gas supply bottle 3 contacts the baffle 16, so that the corresponding piston 26 moves along the gas supply bottle 3, compressing the second spring 27 while pressing the gas into the storage bottle 2 through the first one-way valve 7 and the connecting pipe 6, so that the storage bottle 2 is in a high-pressure environment. During the reciprocating process of the electric slide 1, the two connecting rods 25 ensure that there is sufficient gas pressure inside the storage bottle 2;
[0117] After completing the preliminary judgment of the welding quality, turn on the switch of the solenoid valve 20. Under the action of the high pressure in the storage bottle 2, the coupling agent inside the storage bottle 2 enters the output seat 22 through the hose 28, the solenoid valve 20, and the feed pipe 21. The coupling agent is applied to the weld through the output seat 22, and as the electric slide 1 works, the welds at various locations of the steel structure are coated with the coupling agent. After the coupling agent is applied, ultrasonic detection of the weld is performed using the ultrasonic flaw detector 19.
[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An automatic detection device for welding quality of building steel structures, characterized in that: include: An electric slide (1), wherein both ends of the electric slide (1) are provided with fixing components, and the moving end of the electric slide (1) is provided with two fixing blocks (24); A camera (17), wherein the camera (17) is fixed on the moving end of the electric slide (1), and the camera (17) is used for visual inspection of the weld; Two mounting plates (18), both mounting plates (18) being arranged on the moving end of the electric slide (1), one of the mounting plates (18) being provided with a physical detection component, and the other mounting plate (18) being provided with an ultrasonic detection component; A coating component, the coating component is arranged on one of the mounting plates (18), and the coating component is used to apply a coupling agent to the weld; A power assembly is fixed to one of the fixing blocks (24), and the power assembly is used to extrude the coupling agent.
2. The automatic detection equipment for welding quality of building steel structure according to claim 1 is characterized in that: The fixing assembly comprises: A connecting plate (4), wherein the connecting plate (4) is fixed to the end of the electric slide (1); A connecting seat (5), the connecting seat (5) and the connecting plate (4) are fixed, and a rectangular hole is formed through a side wall of the connecting seat (5); An electromagnet (8), wherein the electromagnet (8) is fixed in the rectangular hole; Two connecting blocks (12), the two connecting blocks (12) are respectively fixed on the top and bottom of the connecting seat (5), and each of the connecting blocks (12) is slidably connected to the rod body (13); A plate body (11), wherein the plate body (11) and the two rod bodies (13) are fixed; A strong magnet (10), wherein the strong magnet (10) and the plate (11) are fixed, a first spring (9) is fixed to the side wall of the strong magnet (10), and the first spring (9) and the electromagnet (8) are fixed; Two clamping plates (15), the two clamping plates (15) are rotatably connected to the two rod bodies (13) respectively, and the side walls of the two clamping plates (15) are penetrated by rubber rings (14), and the rubber rings (14) and the clamping plates (15) are in contact with each other; A baffle (16) is fixed to the bottom of the connecting plate (4).
3. The automatic detection equipment for welding quality of building steel structure according to claim 1 is characterized in that: The physical detection component includes: A connecting shaft (30), wherein the connecting shaft (30) is slidably connected to one of the mounting plates (18); A connecting frame (32), wherein the connecting frame (32) and the connecting shaft (30) are fixed; A third spring (31), wherein the third spring (31) is fixed on the connecting frame (32), and the third spring (31) is fixed to a nearby mounting plate (18); Two support assemblies, both of which are fixed to the bottom of the third spring (31); A measuring component is arranged at the bottom of the connecting frame (32) between two supporting components.
4. The automatic detection equipment for welding quality of building steel structure according to claim 3 is characterized in that: The support assembly comprises: A fixing rod (37) is fixed to the bottom of the connecting frame (32), and a second ball (38) is rotatably arranged at the bottom of the fixing rod (37).
5. The automatic detection equipment for welding quality of building steel structure according to claim 3 is characterized in that: The measuring assembly comprises: A transmission rod (33), the transmission rod (33) being slidably disposed on a connecting frame (32), and a first ball (36) being disposed at the bottom of the connecting frame (32); A force sensor (35), wherein the force sensor (35) and the transmission rod (33) are fixed; A fourth spring (34), wherein the fourth spring (34) is fixed on the connecting frame (32), and the fourth spring (34) and the force sensor (35) are fixed.
6. The automatic detection equipment for welding quality of building steel structure according to claim 5 is characterized in that: The coating assembly comprises: An output seat (22), the output seat (22) being fixed to the bottom of the connecting frame (32), and a feed pipe (21) being provided through a side wall of the output seat (22); A storage bottle (2), the storage bottle (2) being fixed on one of the fixing blocks (24), and a solenoid valve (20) being provided through a side wall of the storage bottle (2); A hose (28), one end of which is connected to the solenoid valve (20), a counterweight (29) is fixed to the end of the hose (28), and the other end of the feed pipe (21) is connected to the solenoid valve (20).
7. The automatic detection equipment for welding quality of building steel structure according to claim 6 is characterized in that: The power assembly comprises: A gas supply bottle (3), wherein the gas supply bottle (3) is fixed to another fixing block (24); Two pistons (26), both of which are slidably disposed in the gas supply bottle (3), and both of which have connecting rods (25) fixed to their side walls; a second spring (27), the second spring (27) being fixed between the two pistons (26); A first one-way valve (7), the first one-way valve (7) being arranged through the side wall of the gas supply bottle (3); A connecting pipe (6), one end of the connecting pipe (6) is connected to the storage bottle (2), and the other end of the connecting pipe (6) is connected to the first one-way valve (7); A second one-way valve (23), wherein the second one-way valve (23) is arranged through the side wall of the gas supply bottle (3).
8. The automatic detection equipment for welding quality of building steel structure according to claim 2 is characterized in that: The ultrasonic detection component comprises: An ultrasonic flaw detector (19), wherein the ultrasonic flaw detector (19) and the mounting plate (18) are fixed.