Wire feeding pipe assembly, wire feeding device and welding equipment

Abstract

The utility model provides a wire feeding pipe assembly, a wire feeding device and welding equipment, which are applied to the technical field of welding, the wire feeding device comprises a wire feeder and a wire feeding pipe assembly, and the wire feeding pipe assembly comprises a wire feeding pipe, a wire feeding nozzle, a first male joint and a first female joint; the wire feeding nozzle is connected to the wire outlet end of the wire feeding pipe. One of the first male connector and the first female connector is arranged at the wire inlet end of the wire feeding pipe, and the other one of the first male connector and the first female connector is used for being installed at a wire outlet of a wire feeder. The first female connector is provided with a first insertion hole, and the first male connector can be inserted into the first insertion hole and matched with the first female connector in a clamped mode so as to be communicated with the first female connector. According to the technical scheme, the disassembly and assembly convenience between the wire feeding pipe and the wire feeder can be improved.

Description

Technical Field

[0001] This utility model relates to the field of wire feeding technology, and in particular to a wire feeding tube assembly, a wire feeding device, and a welding equipment. Background Technology

[0002] When welding workpieces using welding equipment, a wire feeder is typically used to deliver welding wire to the welding area of ​​the workpiece so that the welding wire melts and fills the weld gap. However, the wire feeder tube in the wire feeder is usually connected to the wire feeder via a threaded connector, which makes disassembly and replacement inconvenient. Utility Model Content

[0003] The main purpose of this utility model is to provide a wire feeding tube assembly, a wire feeding device and a welding equipment, which aims to improve the ease of disassembly and assembly between the wire feeding tube and the wire feeder.

[0004] To achieve the above objectives, this utility model proposes a wire feeding tube assembly, the wire feeding tube assembly comprising:

[0005] Wire feed tube;

[0006] A wire feeding nozzle is connected to the wire outlet end of the wire feeding tube;

[0007] A first male connector and a first female connector, one of which is connected to the wire inlet end of the wire feeding tube, and the other of which is used to be installed at the wire outlet of the wire feeder.

[0008] The first female connector is provided with a first insertion hole, and the first male connector is inserted into the first insertion hole and engaged with the first female connector to communicate with the first female connector.

[0009] In one embodiment, the first female connector includes a first connector body and a first snap-fit ​​member. The end of the first connector body is provided with the first insertion hole, and the side wall of the first connector body is provided with a first mounting hole communicating with the first insertion hole. The first snap-fit ​​member is movably disposed in the first mounting hole, and part of the first snap-fit ​​member can enter and exit the first insertion hole.

[0010] The outer side wall of the first male connector is provided with a first slot. When the first male connector is inserted into the first insertion hole, the first snap-fit ​​component is snapped into the first slot.

[0011] In one embodiment, the first mounting hole extends to the outer wall of the first connector body, and the first female connector further includes a first locking / releasing member movably disposed on the outer wall of the first connector body, the first locking / releasing member having a locked position and an unlocked position relative to the first connector body;

[0012] When the first locking / releasing member is in the locked position, it covers the first mounting hole and abuts against the first snap-fit ​​member, so that part of the first snap-fit ​​member enters the first insertion hole. When the first locking / releasing member is in the unlocked position, it is misaligned with the first mounting hole.

[0013] In one embodiment, the first locking and releasing member is configured as a first bushing, the first bushing including a first locking section and a first unlocking section connected to each other, and the inner wall of the first unlocking section gradually moves away from the first connector body in a direction away from the first locking section.

[0014] When the first bushing is in the locked position, the first locking section is opposite to the first mounting hole and presses against the first snap-fit ​​member, causing the first snap-fit ​​member to protrude from the inner wall of the first insertion hole; when the first bushing is in the unlocked position, the first unlocking section is opposite to the first mounting hole, and the first snap-fit ​​member can be withdrawn from the first insertion hole.

[0015] And / or, the first female connector further includes a first elastic reset member, the two ends of which abut against the first locking / releasing member and the first connector body, respectively, so that the first locking / releasing member has a tendency to slide to the locked position.

[0016] In one embodiment, the first connector body is further provided with a first movable hole communicating with the end of the first insertion hole, and the first movable hole is provided with a first mating member, a first fixing member and a first elastic member;

[0017] The first fixing member is located on the side of the first docking member facing away from the first insertion hole, and the first elastic member is sandwiched between the first fixing member and the first docking member;

[0018] When the first male connector is inserted into the first insertion hole, the first mating member can be pushed to move towards the first fixing member so that the first mating member abuts against the first fixing member and conducts communication.

[0019] And / or, the wire feeding tube includes an outer tube and an inner tube inserted into the outer tube, wherein the inner tube is made of Teflon.

[0020] In one embodiment, the wire feeding tube assembly further includes an adjustment structure, the two ends of which are respectively connected to the wire feeding tube and the wire feeding nozzle, and at least a portion of the adjustment structure is slidably disposed relative to the wire feeding tube to adjust the distance between the wire feeding nozzle and the wire feeding tube.

[0021] In one embodiment, the adjustment structure includes a fixed tube connected to the wire feeding tube and an adjustment tube connected to the wire feeding nozzle. The adjustment tube is inserted into the fixed tube, and the adjustment tube can slide relative to the fixed tube to adjust the length of the adjustment structure.

[0022] In one embodiment, the wire feeding tube assembly further includes a second male connector and a second female connector, one of which is disposed at one end of the fixed tube, and the other of which is disposed at the wire outlet end of the wire feeding tube.

[0023] The second female connector is provided with a second insertion hole, and the second male connector can be inserted into the second insertion hole and communicate with the second female connector.

[0024] In one embodiment, the second female connector includes a second connector body and a second snap-fit ​​member. The second connector body is provided with a second insertion hole, and the side wall of the second female connector is provided with a second mounting hole communicating with the second insertion hole. The second snap-fit ​​member is movably disposed in the second mounting hole, and a portion of the second snap-fit ​​member can enter and exit the second insertion hole.

[0025] The outer wall of the second male connector is provided with a second slot. When the second male connector is inserted into the second insertion hole, the second snap-fit ​​element is snapped into the second slot.

[0026] In one embodiment, the second mounting hole extends through to the outer wall of the second connector body, and the second female connector further includes a second locking and releasing member and a second elastic reset member. The second locking and releasing member is movably disposed on the outer wall of the second connector body and has a locked position and an unlocked position relative to the second connector body.

[0027] When the second locking release member is in the locked position, it covers the second mounting hole and abuts against the second snap-fit ​​member, causing part of the second snap-fit ​​member to enter the second insertion hole. When the second locking release member is in the unlocked position, it is misaligned with the second mounting hole.

[0028] The two ends of the second elastic reset member abut against the second locking and releasing member and the second female connector respectively, so that the second locking and releasing member has a tendency to slide to the locked position;

[0029] And / or, the second female connector is further provided with a second movable hole communicating with the end of the second insertion hole. The second movable hole is provided with a second mating member, a second fixing member and a second elastic member. The second fixing member is located on the side of the second mating member facing away from the second insertion hole, and the second elastic member is sandwiched between the second fixing member and the second mating member.

[0030] When the second male connector is inserted into the second insertion hole, it can push the second mating member to move towards the side of the second fixing member so that the second mating member abuts against the second fixing member and conducts electricity.

[0031] This application also proposes a wire feeding device, which includes a wire feeder and a wire feeding tube assembly as described in any of the foregoing embodiments, wherein the wire feeding tube of the wire feeding tube assembly is detachably connected to the wire feeder via a first male connector and a first female connector.

[0032] This application also proposes a welding apparatus, which includes a welding machine and a wire feeding device as described in the foregoing embodiments.

[0033] The wire feeding tube assembly of this utility model includes a first male connector and a second female connector that mate with each other. The first male connector can be inserted into the first insertion hole of the first female connector and engages with it. The first male connector and the first female connector are used to connect to the wire inlet end of the wire feeding tube and the wire outlet end of the wire feeder, respectively, thereby enabling the wire feeding tube to be detachably connected to the wire feeder via the first male connector and the first female connector. When it is necessary to separate the wire feeding tube from the wire feeder, the first male connector can be pulled out of the first female connector, making disassembly and assembly convenient. In other words, this application, through the quick-release structure of the first male connector and the first female connector, can achieve rapid disassembly and assembly of the wire feeding tube assembly and the wire feeder, improving the convenience of disassembly and assembly between the wire feeding tube and the wire feeder. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0035] Figure 1 This is a structural diagram of an embodiment of the wire feeding device of this application;

[0036] Figure 2 This is a structural diagram of an embodiment of the wire feeding tube assembly of this application;

[0037] Figure 3 This is a cross-sectional view of an embodiment of the wire feeding tube assembly of this application;

[0038] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0039] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0040] Figure 6 This is a cross-sectional view of an embodiment of the first female connector;

[0041] Figure 7 This is a cross-sectional view of an embodiment of the second female connector.

[0042] Explanation of icon numbers:

[0043] 100. Wire feeding device; 10. Wire feeding tube assembly; 11. Wire feeding tube; 111. Outer tube; 112. Inner tube; 12. Wire feeding nozzle; 13. First male connector; 131. First main body section; 132. First insertion section; 133. First slot; 14. First necking component; 15. Adjustment structure; 151. Fixing tube; 1511. Top screw hole; 152. Adjustment tube; 16. Second male connector; 161. Second main body section; 162. Second insertion section; 163. Second slot; 17. Second female connector; 171. Second connector body; 1711. Second insertion hole; 1712. Second mounting hole; 1713. Second movable hole; 1714. Second stop structure; 172. Second locking component; 173. Second locking and releasing component; 1731. Second locking section; 1732. Second unlocking section; 1 733. Second connecting section; 174. Second elastic reset component; 175. Second limiting component; 176. Second fixing component; 177. Second elastic component; 178. Second mating component; 18. Second narrowing component; 19. Fixing base; 101. First female connector; 1011. First connector body; 10111. First insertion hole; 10112. First mounting hole; 10113. First movable hole; 10114. First stop structure; 1012. First snap-fit ​​component; 1013. First locking / releasing component; 10131. First locking section; 10132. First unlocking section; 10133. First connecting section; 1014. First elastic reset component; 1015. First limiting component; 1016. First fixing component; 1017. First elastic component; 1018. First mating component; 1019. Guide nozzle sleeve;

[0044] 20. Wire feeder; 21. Conveying mechanism; 211. Feed inlet.

[0045] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0050] When welding workpieces using welding equipment, a wire feeder is typically used to deliver welding wire to the welding area of ​​the workpiece so that the welding wire melts and fills the weld gap. However, the wire feeder tube in the wire feeder is usually connected to the wire feeder via a threaded connector, which makes disassembly and replacement inconvenient.

[0051] To address the aforementioned issues, this application proposes a wire feeding tube assembly 10 for use in a wire feeding device 100, which can improve the ease of assembly and disassembly of the wire feeding tube 11 and the wire feeder 20.

[0052] Combined with reference Figures 1 to 4In some embodiments of this application, the wire feeding device 100 includes a wire feeder 20 and a wire feeding tube assembly 10. The wire feeding tube assembly 10 includes a wire feeding tube 11, a wire feeding nozzle 12, a first male connector 13, and a first female connector 101. The wire feeding nozzle 12 is connected to the wire outlet end of the wire feeding tube 11. One of the first male connector 13 and the first female connector 101 is connected to the wire inlet end of the wire feeding tube 11. The other of the first male connector 13 and the first female connector 101 is used to be installed at the wire outlet of the wire feeder 20. The first female connector 101 is provided with a first insertion hole 10111. The first male connector 13 is inserted into the first insertion hole 10111 and engages with the first female connector 101 to communicate with the first female connector 101.

[0053] The wire feeding device 100 proposed in this embodiment is used to provide welding wire to the welding position during the welding process. During welding, the welding wire is melted to fill the weld gap by means of laser emission, high-voltage current application, or flame jet. The wire feeding device 100 includes a wire feeder 20 and a wire feeding tube assembly 10 connected to the wire feeder 20. The wire feeder 20 is used to gradually output the welding wire and is provided with a conveying mechanism 21 for driving the welding wire. The wire feeding tube assembly 10 forms a wire guide channel for guiding the welding wire output from the wire feeder 20 to the welding position.

[0054] The wire feeding tube 11 of the wire feeding tube assembly 10 has an inlet end and an outlet end spaced apart along the wire feeding direction. The inlet end is used to connect to the wire feeder 20, and the outlet end is used to connect to the wire feeding nozzle 12. The wire feeding nozzle 12 can be directly connected to the wire feeding tube 11, or it can be connected to the wire feeding tube 11 through the adjustment structure 15 in the following embodiment; no limitation is made here. The wire feeding tube assembly 10 also includes a first male connector 13 and a first female connector 101. The wire inlet end of the wire feeding tube 11 can be connected to the first male connector 13, and the first female connector 101 is used to be installed on the wire outlet of the wire feeder 20; or, the first female connector 101 can be connected to the wire inlet end of the wire feeding tube 11, and the first male connector 13 is used to be installed on the wire outlet of the wire feeder 20. Furthermore, the first male connector 13 and the first female connector 101 are detachably connected so that the wire feeding tube 11 and the wire feeder 20 are detachably connected. Both the first male connector 13 and the first female connector 101 are provided with wire guide channels. When the wire feeding tube 11 and the wire feeder 20 are connected through the first male connector 13 and the first female connector 101, they are also interconnected through the wire guide channels in the first male connector 13 and the first female connector 101, so that the welding wire of the wire feeder 20 can be fed into the wire feeding tube 11.

[0055] The first female connector 101 is provided with a first insertion hole 10111 communicating with the guide wire channel. The first male connector 13 can be inserted into the first insertion hole 10111, and the first male connector 13 and the first female connector 101 are engaged. Optionally, a locking protrusion can be provided on the inner wall of the first female connector 101, or in the following embodiment, a movable first locking member 1012 is provided on the first female connector 101, and a first locking groove 133 is provided on the outer wall of the first male connector 13. When the first male connector 13 is inserted into the first insertion hole 10111, the first locking groove 133 is located in the first insertion hole 10111, and the locking protrusion or the first locking member 1012 is engaged in the first locking groove 133. Alternatively, a snap-fit ​​protrusion can be provided on the outer wall of the first male connector 13, and a snap-fit ​​groove can be provided on the inner wall of the first female connector 101. When the first male connector 13 is inserted into the first insertion hole 10111, the snap-fit ​​protrusion is located in the first insertion hole 10111 and is snapped into the snap-fit ​​groove; both methods can make the first male connector 13 and the first female connector 101 snap-fit ​​together.

[0056] In other words, this application provides a first male connector 13 and a first female connector 101 that cooperate with each other on the wire feeding tube assembly 10. The first male connector 13 can be inserted into the first insertion hole 10111 of the first female connector 101 and engage with the first female connector 101. The first male connector 13 and the first female connector 101 are respectively used to connect to the wire inlet end of the wire feeding tube 11 and the wire outlet of the wire feeder 20, so that the wire feeding tube 11 and the wire feeder 20 can be detachably connected through the first male connector 13 and the first female connector 101. When it is necessary to separate the wire feeding tube 11 from the wire feeder 20, the first male connector 13 can be pulled out from the first female connector 101, making disassembly and assembly convenient. That is, through the quick-release structure of the first male connector 13 and the first female connector 101, this application can realize the quick disassembly and assembly of the wire feeding tube assembly 10 and the wire feeder 20, improving the convenience of disassembly and assembly between the wire feeding tube 11 and the wire feeder 20.

[0057] In some embodiments of this application, the first female connector 101 includes a first connector body 1011 and a first snap-fit ​​member 1012. The first connector body 1011 is provided with a first insertion hole 10111. The wall of the first insertion hole 10111 is provided with a first mounting hole 10112. The first snap-fit ​​member 1012 is movably disposed in the first mounting hole 10112, and part of the first snap-fit ​​member 1012 can enter and exit the first insertion hole 10111. The outer side wall of the first male connector 13 is provided with a first slot 133. When the first male connector 13 is inserted into the first insertion hole 10111, the first snap-fit ​​member 1012 is snapped into the first slot 133.

[0058] In this embodiment, the first female connector 101 includes a first connector body 1011 and a first snap-fit ​​member 1012 disposed in the first connector body 1011. The first connector body 1011 is provided with a first insertion hole 10111 for inserting the first male connector 13, and a first mounting hole 10112 communicating with the first insertion hole 10111 is opened on the side wall of the first female connector 101. The first snap-fit ​​member 1012 is movably disposed in the first mounting hole 10112, and at least a part of the structure of the first snap-fit ​​member 1012 can move in and out of the first insertion hole 10111 along the first mounting hole 10112. At the same time, a first slot 133 is provided on the outer side wall of the first male connector 13. In this configuration, the first male connector 13 can be inserted into the first insertion hole 10111 to engage with the first female connector 101. When the first male connector 13 is inserted into the first insertion hole 10111, the first locking member 1012 can be engaged in the first locking groove 133, thereby locking the first male connector 13 and the first female connector 101 and improving the connection stability between the wire feeding tube 11 and the wire feeder 20. When it is necessary to separate the wire feeding tube 11 from the wire feeder 20, the first locking member 1012 can be withdrawn from the first insertion hole 10111, allowing the first male connector 13 to be pulled out of the first female connector 101, making disassembly and assembly convenient. The first snap-fit ​​component 1012 can be a sphere, a cylinder, or other regular or irregular structures. Alternatively, only one first snap-fit ​​component 1012 can be provided, or two or more first snap-fit ​​components 1012 can be provided along the circumference of the first insertion hole 10111. Correspondingly, at least two first mounting holes 10112 need to be provided. When at least two first snap-fit ​​components 1012 are provided, two first slots 133 can be provided correspondingly on the first male connector 13. Alternatively, the first slots 133 can be extended along the circumference of the first male connector 13 to correspond to the at least two first snap-fit ​​components 1012. No limitation is made here.

[0059] It should be noted that, in the embodiments of this application, the first mounting hole 10112 can be a through hole, and a first locking release member 1013 is provided in the following embodiment to prevent the first locking member 1012 from exiting the first locking slot 133 when the first locking member 1012 is locked in the first locking slot 133 of the first male connector 13. When it is necessary to release the lock on the first male connector 13, the first locking release member 1013 can be removed to allow the first locking member 1012 to exit from the first insertion hole 10111; or, the first mounting hole 10112 can be provided with The first mounting hole 10112 is either a blind hole or the opening at one end of the first mounting hole 10112 that is away from the first insertion hole 10111 is smaller than the first snap-fit ​​member 1012. An elastic structure is provided in the first mounting hole 10112 to abut against the first snap-fit ​​member 1012. The elastic structure can make the first snap-fit ​​member 1012 have a tendency to enter the first insertion hole 10111, so as to maintain the locking of the first snap-fit ​​member 1012 to the first male connector 13. When it is necessary to release the locking of the first male connector 13, the first snap-fit ​​member 1012 can be withdrawn from the first insertion hole 10111. It should also be noted that the method for disengaging the first snap-fit ​​member 1012 from the first insertion hole 10111 can be as follows: in the embodiment below, the side wall of the first slot 133 on the first male connector 13 is inclined, so that when the first male connector 13 is pulled out, the inclined slot wall of the first slot 133 will squeeze the first snap-fit ​​member 1012, causing the first snap-fit ​​member 1012 to disengage from the first insertion hole 10111; or one end of the first snap-fit ​​member 1012 can be exposed on the outside of the first connector body 1011, so that an outward force can be applied to the first snap-fit ​​member 1012 on the outside of the first connector body 1011, causing the first snap-fit ​​member 1012 to disengage from the first insertion hole 10111. Alternatively, a bevel can be provided at the end of the first male connector 13, so that when the first male connector 13 is inserted into the first insertion hole 10111, the bevel squeezes the first snap-fit ​​member 1012, causing the first snap-fit ​​member 1012 to automatically disengage from the first insertion hole 10111.

[0060] Please refer to Figure 4 In one embodiment, the first mounting hole 10112 extends to the outer wall of the first connector body 1011. The first female connector 101 also includes a first locking / releasing member 1013 movably disposed on the outer wall of the first connector body 1011. The first locking / releasing member 1013 has a locked position and an unlocked position relative to the first connector body 1011. When the first locking / releasing member 1013 is in the locked position, it covers the first mounting hole 10112 and abuts against the first snap-fit ​​member 1012, causing part of the first snap-fit ​​member 1012 to enter the first insertion hole 10111. When the first locking / releasing member 1013 is in the unlocked position, it is misaligned with the first mounting hole 10112.

[0061] In this embodiment, the first mounting hole 10112 is configured as a through hole, allowing at least a portion of the first snap-fit ​​member 1012 to exit outwards through the outer opening of the first mounting hole 10112. Additionally, a first locking / releasing member 1013 is provided on the first female connector 101, movably connected to the first connector body 1011. The first locking / releasing member 1013 has a locked position and an unlocked position relative to the first connector body 1011. In the locked position, the first locking / releasing member 1013 presses the first snap-fit ​​member 1012 into the first mounting hole 10112 and partially inserts the first snap-fit ​​member 1012 into the first insertion hole 10111. At this time, the first snap-fit ​​member 1012 is limited and cannot exit from the first insertion hole 10111. If the first male connector 13 is inserted into the first female connector 101, it can be effectively locked and cannot easily exit, improving connection stability. When the first locking release member 1013 is in the unlocked position, it is misaligned with the first mounting hole 10112, allowing the first latching member 1012 to exit from the first insertion hole 10111. At this time, the first male connector 13 can be inserted or removed to connect or disconnect from the first female connector 101. In other words, in this embodiment, locking or unlocking the first latching member 1012 can be achieved by moving the first locking release member 1013, thereby locking or releasing the first male connector 13 inserted into the first insertion hole 10111. The operation is relatively simple.

[0062] The first locking and releasing element 1013 can be configured as an annular bushing structure and sleeved on the first connector body 1011. The first locking and releasing element 1013 can also be configured as a non-annular sheet or other structure, which is not limited here.

[0063] The first locking release member 1013 may be slidably connected to the first connector body 1011, so that the first locking release member 1013 can slide relative to the first connector body 1011 to switch between a locked position and an unlocked position. For example, it may slide along the length direction of the first connector body 1011, or the first locking release member 1013 may be set as a non-circular structure and the first locking release member 1013 may slide circumferentially along the cross-section of the first insertion hole 10111. Alternatively, the first locking release member 1013 can be rotatably connected to the first connector body 1011, allowing the first locking release member 1013 to rotate relative to the first connector body 1011 to switch between a locked position and an unlocked position. For example, the first locking release member 1013 can be configured as a sheet-like structure rotatably connected to the outer wall of the first connector body 1011, allowing the sheet-like structure to flip relative to the first connector body 1011 to open or cover the first mounting hole 10112. Alternatively, the first locking release member 1013 can be configured as a rotatable bushing structure fitted onto the first connector body 1011, with a clearance hole provided on the side wall of the bushing structure. By rotating the bushing structure, the clearance hole can be positioned opposite to or offset from the first mounting hole 10112. When the bushing structure is in the locked position, the clearance hole is offset from the first mounting hole 10112; when the bushing structure is in the unlocked position, the clearance hole is opposite to the first mounting hole 10112, at which point at least part of the first snap-fit ​​member 1012 can be withdrawn into the clearance hole.

[0064] Combined with reference Figure 2 and Figure 4 In one embodiment, the first locking / unlocking member 1013 is configured as a first bushing, which is sleeved on the first connector body 1011 and can slide along the length direction of the first connector body 1011 to switch between a locked position and an unlocked position.

[0065] In this embodiment, the first locking / releasing element 1013 is configured as a first bushing that is slidably connected to the first connector body 1011. The first bushing is sleeved on the first connector body 1011, making it difficult for the first bushing and the first connector body 1011 to separate. The first connector body 1011 can be used to limit and guide the sliding direction of the first bushing, so that the first bushing can slide stably to the locking position and the releasing position.

[0066] In this embodiment, when the first locking release member 1013 slides to the unlocked position, the first locking release member 1013 as a whole is misaligned with the first mounting hole 10112 in the sliding direction. Alternatively, in the following embodiment, a locking section and an unlocking section are provided so that when the first locking release member 1013 is in the unlocked position, the unlocking section is located outside the first mounting hole 10112 to prevent the first snap-fit ​​member 1012 from falling out. For specific implementation details, please refer to the following description, which will not be repeated here.

[0067] Please refer to Figure 4In one embodiment, the first bushing includes a first locking section 10131 and a first unlocking section 10132 connected to each other. Along the direction away from the first locking section 10131, the inner wall of the first unlocking section 10132 gradually moves away from the first connector body 1011. When the first bushing is in the locked position, the first locking section 10131 is opposite to the first mounting hole 10112 and presses against the first snap-fit ​​member 1012 so that the first snap-fit ​​member 1012 protrudes from the inner wall of the first insertion hole 10111. When the first bushing is in the unlocked position, the first unlocking section 10132 is opposite to the first mounting hole 10112, and the first snap-fit ​​member 1012 can be withdrawn from the first insertion hole 10111.

[0068] In this embodiment, the first bushing includes a first locking section 10131 and a first unlocking section 10132. The first locking section 10131 and the first unlocking section 10132 are arranged sequentially along the direction of sliding locking of the first bushing. That is, when the inner hole contour of the first locking section 10131 used to fit with the first connector body 1011 is adapted to the cross-sectional contour of the first connector body 1011, and the inner hole diameter of the first locking section 10131 is smaller than the inner hole diameter of the first unlocking section 10132. With this configuration, when the first locking segment 10131 is slid to the position of the first mounting hole 10112, the first locking segment 10131 covers the first mounting hole 10112 and limits the first latching member 1012, preventing the first latching member 1012 from exiting outward from the first insertion hole 10111 and the first mounting hole 10112; when the first unlocking segment 10132 is slid to the position of the first mounting hole 10112, because the inner wall of the first unlocking segment 10132 is flush with the first... The outer wall of the connector body 1011 is spaced to form a clearance space, at least part of the first locking member 1012 can be retracted into the clearance space, so that the first locking member 1012 can be withdrawn from the first insertion hole 10111. And due to the setting of the first unlocking section 10132, the first locking member 1012 can still be limited between the first locking release member 1013 and the first connector body 1011, preventing the first locking member 1012 from completely detaching from the first connector body 1011.

[0069] Meanwhile, in the direction away from the first locking section 10131, the inner diameter of the first unlocking section 10132 gradually increases, causing the inner wall of the first unlocking section 10132 to form an inclined surface that gradually moves away from the first connector body 1011. With this configuration, as the first locking release member 1013 is slid from the unlocked position to the locked position, the inner wall of the first unlocking section 10132 gradually presses the first latching member 1012 into the first mounting hole 10112, eliminating the need to press the first latching member 1012 in before sliding the first locking release member 1013, thus improving ease of use.

[0070] Please refer to Figure 4In one embodiment, the first female connector 101 further includes a first elastic reset member 1014. The two ends of the first elastic reset member 1014 abut against the first locking / releasing member 1013 and the first connector body 1011, respectively, so that the first locking / releasing member 1013 tends to slide to the locked position. This arrangement prevents the first locking / releasing member 1013 from sliding to the unlocked position and failing to lock the first locking / releasing member 1012, thus affecting the stability of locking the first male connector 13, when the first locking / releasing member 1012 needs to be pressed into the first insertion hole 10111 to lock the first male connector 13. Furthermore, after sliding the first locking / releasing member 1013 to the unlocked position, simply releasing the external force applied to the first locking / releasing member 1013 allows the first elastic reset member 1014 to push the first locking / releasing member 1013 back to the locked position, improving ease of use and preventing the problem of forgetting to push the first locking / releasing member 1013 back to the locked position, ensuring a stable connection between the first male connector 13 and the first female connector 101.

[0071] Please refer to Figure 4 In one embodiment, the first bushing further includes a first connecting section 10133, which is connected to the end of the first locking section 10131 away from the first unlocking section 10132. The first connecting section 10133 is sleeved on the outside of the first connector body 1011 and is spaced apart from the outer side wall of the first connector body 1011 to form an installation space. The outer side wall of the first connector body 1011 is provided with a first stop structure 10114, and the first elastic reset member 1014 is located in the installation space and sandwiched between the first stop structure 10114 and the first locking section 10131.

[0072] In this embodiment, the first bushing further includes a first connecting section 10133. The inner diameter of the first connecting section 10133 is larger than the inner diameter of the first locking section 10131, such that the first connecting section 10133 is spaced apart from the outer wall of the first connector body 1011, forming an installation space for installing the first elastic reset member 1014. The first elastic reset member 1014 is a spring, sleeved on the outside of the first connector body 1011 and housed in the installation space. The two ends of the first elastic reset member 1014 abut against the first stop structure 10114 on the outer wall of the first connector body 1011 and the end face of the first locking section 10131 facing the first connecting section 10133, respectively. This arrangement allows the first connecting section 10133 to shield and protect the first elastic reset member 1014, preventing it from being directly exposed to the outside, reducing the risk of damage to the first elastic reset member 1014, and improving safety. The first stop structure 10114 can be integrally formed with the first connector body 1011, or it can be connected to the first connector body 1011.

[0073] Please refer to Figure 4 In one embodiment, the first female connector 101 further includes a first limiting member 1015 protruding from the outer side wall of the first connector body 1011. Along the sliding locking direction of the first locking and releasing member 1013, the first limiting member 1015 is located on one side of the first mounting hole 10112, and the first bushing abuts against the first limiting member 1015 when it is in the locked position.

[0074] In this embodiment, the first limiting member 1015 can limit the first locking / releasing member 1013 when it slides to the locking position, ensuring that the first locking / releasing member 1013 can accurately reach the locking position, so that the first locking section 10131 accurately covers the position of the first mounting hole 10112 to limit the first latching member 1012. In addition, when the first locking / releasing member 1013 slides to the unlocking position and the first latching member 1012 exits into the clearance space between the first unlocking section 10132 and the outer wall of the first connector body 1011, the first limiting member 1015 can also limit the first latching member 1012 to prevent it from falling out of the clearance space.

[0075] Please refer to Figure 4 In one embodiment, the sidewall of the first slot 133 is inclined and can abut against the first latching member 1012 when the first male connector 13 is withdrawn from the first insertion hole 10111, thereby pushing the first latching member 1012 out of the first insertion hole 10111. With this configuration, when the first male connector 13 needs to be pulled out, it is not necessary to first withdraw the first latching member 1012 from the first insertion hole 10111; the first latching member 1012 can automatically withdraw during the process of pulling out the first male connector 13, improving the convenience of separating the first male connector 13 and the first female connector 101. In some embodiments, the first female connector 101 also includes a first locking / releasing member 1013. In this case, moving the first locking / releasing member 1013 to the unlocked position allows the first male connector 13 to be pulled out directly, which is also relatively convenient.

[0076] In addition, in some embodiments, the first female connector 101 is provided with an elastic structure in the first mounting hole 10112 to abut against the first snap-fit ​​member 1012 so that the first snap-fit ​​member 1012 has a tendency to enter the first insertion hole 10111. At this time, during the process of pulling out the first male connector 13, the first male connector 13 pushes the first snap-fit ​​member 1012 to compress the elastic structure and cause the elastic structure to contract. After the first male connector 13 is pulled out, the elastic structure can automatically drive the first snap-fit ​​member 1012 to reset so that part of the first snap-fit ​​member 1012 enters the first insertion hole 10111.

[0077] Please refer to Figure 4In one embodiment, the surface of the first latching member 1012 facing the first insertion hole 10111 is curved. The first latching member 1012 can be entirely spherical, or only the surface facing the first insertion hole 10112 can be curved (e.g., spherical) to reduce friction between the first latching member 1012 and the first male connector 13 when the first male connector 13 enters and exits the first insertion hole 10111. In some embodiments, by setting the sidewall of the first slot 133 as an inclined surface to push the first latching member 1012 out of the first insertion hole 10111 when the first male connector 13 is pulled out, setting the surface of the first latching member 1012 as curved can also make the engagement between the first latching member 1012 and the inclined sidewall of the first slot 133 smoother.

[0078] Combined with reference Figure 4 and Figure 6 In one embodiment, the first connector body 1011 is further provided with a first movable hole 10113 communicating with the end of the first insertion hole 10111. The first movable hole 10113 is provided with a first mating member 1018, a first fixing member 1016 and a first elastic member 1017. The first fixing member 1016 is located on the side of the first mating member 1018 facing away from the first insertion hole 10111. The first elastic member 1017 is sandwiched between the first fixing member 1016 and the first mating member 1018. When the first male connector 13 is inserted into the first insertion hole 10111, it can push the first mating member 1018 to move towards the first fixing member 1016 so that the first mating member 1018 abuts against the first fixing member 1016 and conducts communication.

[0079] In this embodiment, a first movable hole 10113 is also provided in the first connector body 1011. The first movable hole 10113 is located at the end of the first insertion hole 10111 opposite to the insertion port. A first docking member 1018, a first fixing member 1016, and a first elastic member 1017 are provided in the first movable hole 10113. Both the first fixing member 1016 and the first docking member 1018 are provided with guide wire channels. The first fixing member 1016 is connected to the first connector body 1011. It can be integrally formed with the first connector body 1011 or it can be detachably connected. The first docking member 1018 is movably disposed. The first elastic member 1017 is set as a spring and is sandwiched between the first fixing member 1016 and the first docking member 1018. When the first male connector 13 is not inserted into the first female connector 101, the first fixing member 1016 and the first docking member 1018 are spaced apart. When the first male connector 13 is inserted into the first insertion hole 10111, the first male connector 13 abuts against the first mating member 1018, and pushes the first mating member 1018 closer to the first fixing member 1016 until the first mating member 1018 abuts against the first fixing member 1016 and they are interconnected. This arrangement ensures good contact between the first male connector 13 and the first mating member 1018 through the force of the first elastic member 1017, so that the wire guide channel of the first male connector 13 and the wire guide channel of the first mating member 1018 are well connected, avoiding gaps between the first male connector 13 and the first mating member 1018, thus preventing the welding wire from failing to accurately enter the first male connector 13 when fed from the first mating member 1018 to the first male connector 13. Abutting the first mating member 1018 against the first fixing member 1016 not only limits the position of the first mating member 1018, but also prevents the welding wire from failing to accurately enter the first mating member 1018 after being output from the first fixing member 1016.

[0080] In some embodiments, a limiting structure may be formed between the first movable hole 10113 and the first insertion hole 10111. The limiting structure may be arranged around the first movable hole 10113 in the circumferential direction, or it may be a protrusion protruding from the side wall of the first movable hole 10113. When the first male connector 13 does not abut against the first mating member 1018, the first mating member 1018 abuts against the limiting structure under the action of the first elastic member 1017 to limit the first mating member 1018 and prevent the first mating member 1018 from falling out of the first connector body 1011.

[0081] Please refer to Figure 4 In one embodiment, the first male connector 13 includes a first main body section 131 and a first insertion section 132 connected to each other. The first main body section 131 is provided with a first slot 133, and the first insertion section 132 is inserted into the wire inlet end of the wire feeding tube 11. The first main body section 131 is used to insert and cooperate with the first female connector 101.

[0082] In this embodiment, the first male connector 13 is disposed in the wire feeding tube assembly 10, and the first female connector 101 is disposed in the wire feeder 20. The first main body section 131 of the first male connector 13 is used to insert and cooperate with the first female connector 101, and has the aforementioned first slot 133. The first insertion section 132 is inserted into the wire inlet end of the wire feeding tube 11 so that the first male connector 13 is connected to the wire feeding tube 11, making disassembly and assembly more convenient.

[0083] Combined with reference Figures 1 to 3 In some embodiments, the first female connector 101 further includes a guide sleeve 1019 connected to the first connector body 1011. The guide sleeve 1019 can be inserted into the wire outlet of the wire feeding nozzle 12, so that the first female connector 101 is connected to the wire feeder 20. The guide sleeve 1019 can be detachably connected to the first connector body 1011, or it can be integrally formed with the first connector body 1011, which is not limited here.

[0084] Please refer to Figure 4 In one embodiment, a first limiting step is formed between the first main body segment 131 and the first insertion segment 132, facing the first insertion segment 132. This arrangement can limit the insertion length of the first male connector 13 and the wire feeding tube 11, prevent the first male connector 13 from being fully inserted into the wire feeding tube 11, and ensure that the first slot 133 can be accurately aligned with the first snap-fit ​​member 1012 when the first main body segment 131 and the first female connector 101 are inserted and engaged.

[0085] In some embodiments, the first insertion segment 132 and the wire feeding tube 11 can be interference-fitted to improve the connection strength between the first male connector 13 and the wire feeding tube 11. Specifically, a portion of the end structure of the first insertion segment 132 can be configured as a tapered structure, with the maximum cross-sectional dimension of the portion of the first insertion segment 132 inserted into the wire feeding tube 11 slightly larger than the wire feeding tube 11. This facilitates the insertion of the first insertion segment 132 into the wire feeding tube 11 and ensures a stable interference-fit connection between the first insertion segment 132 and the wire feeding tube 11.

[0086] Please refer to Figures 2 to 4 In one embodiment, the wire feeding tube assembly 10 further includes a first constriction member 14, which is sleeved on the wire feeding tube 11 and the first main body section 131. One end of the first constriction member 14 is connected to the first main body section 131, and the other end of the first constriction member 14 is clamped to the wire feeding tube 11 so that the wire feeding tube 11 and the first insertion section 132 are tightly fitted together. This arrangement can improve the connection strength between the first male connector 13 and the wire feeding tube 11 and prevent the first insertion section 132 from coming out of the wire feeding tube 11. The connection method between the first constriction member 14 and the first main body section 131 can be a threaded connection or a set screw tightening, etc., and is not limited here.

[0087] Please refer to Figures 1 to 3In one embodiment, the wire feeding tube assembly 10 further includes an adjustment structure 15, the two ends of which are connected to the wire feeding tube 11 and the wire feeding nozzle 12, respectively, and at least a portion of the adjustment structure 15 is slidably disposed relative to the wire feeding tube 11 to adjust the distance between the wire feeding nozzle 12 and the wire feeding tube 11.

[0088] In this embodiment, the wire feeding tube assembly 10 also includes an adjustment structure 15 for connecting the wire feeding tube 11 and the wire feeding nozzle 12. The adjustment structure 15 can be configured as an adjustable-length telescopic structure consisting of a fixed tube 151 and an adjusting tube 152, as described in the previous embodiment. The adjusting tube 152 can slide relative to the fixed tube 151 and the wire feeding tube 11, allowing the distance between the wire feeding tube 11 and the wire feeding nozzle 12 to be changed by adjusting the length of the adjustment structure 15. Alternatively, the adjustment structure 15 can be configured to slide relative to the wire feeding tube 11 to adjust the length of the adjustment structure 15 extending relative to the wire feeding tube 11, similarly changing the distance between the wire feeding tube 11 and the wire feeding nozzle 12. This configuration makes the wire feeding distance adjustable to suit different operating environments, improving the applicability of the wire feeding tube 11.

[0089] Please refer to Figure 2 and Figure 3 In one embodiment, the adjustment structure 15 includes a fixed tube 151 connected to the wire feeding tube 11 and an adjustment tube 152 connected to the wire feeding nozzle 12. The adjustment tube 152 is inserted into the fixed tube 151 and can slide relative to the fixed tube 151 to adjust the length of the adjustment structure 15.

[0090] In this embodiment, the adjusting structure 15 includes a fixed tube 151 and an adjusting tube 152 connected to each other. The fixed tube 151 is connected to the wire feeding tube 11, and the adjusting tube 152 is connected to the wire feeding nozzle 12. The adjusting tube 152 can extend and retract relative to the fixed tube 151 to adjust the length of the adjusting structure 15. The adjusting tube 152 and the fixed tube 151 are inserted into each other, which can be connected by threads or locked by a set screw as shown in the following embodiment.

[0091] Please refer to Figure 2 In one embodiment, the adjusting tube 152 is inserted into the fixed tube 151. The side wall of the fixed tube 151 has a set screw hole 1511. The adjusting structure 15 also includes a set screw (not shown), which passes through the set screw hole 1511 and abuts against the outer side wall of the adjusting tube 152 to lock the fixed tube 151 and the adjusting tube 152 together. This arrangement simplifies operation by loosening the set screw when adjusting the length of the adjusting structure 15 or separating the adjusting tube 152 from the fixed tube 151. Furthermore, it eliminates the need for separate threads on the adjusting tube 152 and the fixed tube 151 as required by a threaded fit. Compared to an interference fit, inserting and removing the adjusting tube 152 and adjusting the length of the adjusting structure 15 are also easier, improving usability.

[0092] Please refer to Figure 2 and Figure 3 In one embodiment, the wire feeding tube assembly 10 further includes a second male connector 16 and a second female connector 17. One of the second male connector 16 and the second female connector 17 is disposed at one end of the fixed tube 151, and the other of the second male connector 16 and the second female connector 17 is disposed at the wire outlet end of the wire feeding tube 11. The second female connector 17 includes a second connector body 171 having a second insertion hole 1711. The second male connector 16 can be inserted into the second insertion hole 1711 and communicate with the second female connector 17.

[0093] In this embodiment, the fixing tube 151 and the wire feeding tube 11 are connected by a second male connector 16 and a second female connector 17. The second male connector 16 can be connected to the wire feeding tube 11 and the second female connector 17 can be connected to the fixing tube 151; or the second female connector 17 can be connected to the wire feeding tube 11 and the second male connector 16 can be connected to the fixing tube 151. No limitation is made here.

[0094] The second female connector 17 has a second connector body 171, in which a second insertion hole 1711 is formed. The second male connector 16 can be inserted into the second insertion hole 1711 to connect the fixing tube 151 to the wire feeding tube 11. The second male connector 16 and the second connector body 171 can be an interference fit, a threaded connection, or, as in the following embodiment, a second snap-fit ​​member 172 is provided in the second female connector 17 to lock the second male connector 16 when it is inserted into the second insertion hole 1711. Specific implementation details are described below and will not be repeated here.

[0095] Please refer to Figure 5 In one embodiment, the second female connector 17 includes a second connector body 171 and a second snap-fit ​​member 172. The second connector body 171 is provided with a second insertion hole 1711, and the side wall of the second connector body 171 is provided with a second mounting hole 1712 communicating with the second insertion hole 1711. The second snap-fit ​​member 172 is movably disposed in the second mounting hole 1712, and part of the second snap-fit ​​member 172 can enter and exit the second insertion hole 1711. The outer side wall of the second male connector 16 is provided with a second slot 163. When the second male connector 16 is inserted into the second insertion hole 1711, the second snap-fit ​​member 172 is snapped into the second slot 163.

[0096] In this embodiment, the second female connector 17 includes a second connector body 171 and a second snap-fit ​​member 172 disposed on the second connector body 171. The second connector body 171 is provided with a second insertion hole 1711 for inserting the second male connector 16, and a second mounting hole 1712 communicating with the second insertion hole 1711 is opened on the side wall of the second female connector 17. The second snap-fit ​​member 172 is movably disposed in the second mounting hole 1712, and at least a part of the structure of the second snap-fit ​​member 172 can move in and out of the second insertion hole 1711 along the second mounting hole 1712. At the same time, a second slot 163 is provided on the outer side wall of the second male connector 16. In this configuration, the second male connector 16 can be inserted into the second insertion hole 1711 to engage with the second female connector 17. When the second male connector 16 is inserted into the second insertion hole 1711, the second locking member 172 can be engaged in the second locking groove 163, thereby locking the second male connector 16 and the second female connector 17 and improving the connection stability between the wire feeding tube 11 and the fixed tube 151. When it is necessary to separate the wire feeding tube 11 from the fixed tube 151, the second locking member 172 can be withdrawn from the second insertion hole 1711, allowing the second male connector 16 to be pulled out of the second female connector 17, making disassembly and assembly convenient. The second snap-fit ​​component 172 can be a sphere, a cylinder, or other regular or irregular structures. Alternatively, only one second snap-fit ​​component 172 can be provided, or two or more second snap-fit ​​components 172 can be provided along the circumference of the second insertion hole 1711. Correspondingly, at least two second mounting holes 1712 need to be provided. When at least two second snap-fit ​​components 172 are provided, two second slots 163 can be provided correspondingly on the second male connector 16. Alternatively, the second slots 163 can be extended along the circumference of the second male connector 16 to correspond to the at least two second snap-fit ​​components 172. No limitation is made here.

[0097] It should be noted that the second mounting hole 1712 can be a through hole, and in the following embodiment, a second locking release member 173 is provided to prevent the second locking member 172 from exiting the second locking slot 163 when the second locking member 172 is engaged in the second locking slot 163 of the second male connector 16. When it is necessary to release the lock on the second male connector 16, the second locking release member 173 can be removed to allow the second locking member 172 to exit from the second insertion hole 1711; or, the second mounting hole 1712 can be set as a blind hole. Alternatively, the opening of the end of the second mounting hole 1712 away from the second insertion hole 1711 can be smaller than that of the second snap-fit ​​member 172, and an elastic structure can be provided in the second mounting hole 1712 to abut against the second snap-fit ​​member 172. The elastic structure can make the second snap-fit ​​member 172 have a tendency to enter the second insertion hole 1711, so as to maintain the locking of the second snap-fit ​​member 172 to the second male connector 16. When it is necessary to release the locking of the second male connector 16, the second snap-fit ​​member 172 can be withdrawn from the second insertion hole 1711. It should also be noted that the second snap-fit ​​member 172 can be disengaged from the second insertion hole 1711 in the following embodiment: the side wall of the second slot 163 on the second male connector 16 is inclined, so that when the second male connector 16 is pulled out, the inclined slot wall of the second slot 163 will squeeze the second snap-fit ​​member 172, causing the second snap-fit ​​member 172 to disengage from the second insertion hole 1711; or one end of the second snap-fit ​​member 172 can be exposed on the outside of the second connector body 171, so that an outward force can be applied to the second snap-fit ​​member 172 on the outside of the second connector body 171 to disengage the second snap-fit ​​member 172 from the second insertion hole 1711. Alternatively, a bevel can be provided at the end of the second male connector 16, so that when the second male connector 16 is inserted into the second insertion hole 1711, the bevel squeezes the second snap-fit ​​member 172, causing the second snap-fit ​​member 172 to automatically disengage from the second insertion hole 1711.

[0098] Please refer to Figure 5 In one embodiment, the second mounting hole 1712 extends to the outer wall of the second connector body 171. The second female connector 17 also includes a second locking and releasing member 173. The second locking and releasing member 173 is movably disposed on the outer wall of the second connector body 171 and has a locked position and an unlocked position relative to the second connector body 171. When the second locking and releasing member 173 is in the locked position, it covers the second mounting hole 1712 and abuts against the second snap-fit ​​member 172, causing part of the second snap-fit ​​member 172 to enter the second insertion hole 1711. When the second locking and releasing member 173 is in the unlocked position, it is misaligned with the second mounting hole 1712.

[0099] In this embodiment, the second mounting hole 1712 is configured as a through hole, allowing at least a portion of the second snap-fit ​​member 172 to exit outwards through the outer opening of the second mounting hole 1712. Additionally, a second locking / releasing member 173 is provided on the second female connector 17, movably connected to the second connector body 171. The second locking / releasing member 173 has a locked position and an unlocked position relative to the second connector body 171. In the locked position, the second locking / releasing member 173 presses the second snap-fit ​​member 172 into the second mounting hole 1712 and partially inserts the second snap-fit ​​member 172 into the second insertion hole 1711. At this time, the second snap-fit ​​member 172 is limited and cannot exit from the second insertion hole 1711. If the second male connector 16 is inserted into the second female connector 17, it can be effectively locked and cannot easily exit, improving connection stability. When the second locking / releasing member 173 is in the unlocked position, the second latching member 172 can be disengaged from the second insertion hole 1711. At this time, the second male connector 16 can be inserted or removed to connect or disconnect the second male connector 16 from the second female connector 17. That is, in this embodiment, the second latching member 172 can be locked or unlocked by driving the second locking / releasing member 173, thereby locking or releasing the second male connector 16 inserted in the second insertion hole 1711, which is relatively simple to operate.

[0100] The second locking and releasing element 173 can be configured as an annular bushing structure and sleeved on the second connector body 171. The second locking and releasing element 173 can also be configured as a non-annular sheet or other structure, which is not limited here.

[0101] The second locking release member 173 can be slidably connected to the second connector body 171, so that the second locking release member 173 can slide relative to the second connector body 171 to switch between a locked position and an unlocked position. For example, it can slide along the length direction of the second connector body 171, or the second locking release member 173 can be set as a non-circular structure and the second locking release member 173 can slide circumferentially along the cross section of the second insertion hole 1711. Alternatively, the second locking / releasing member 173 can be rotatably connected to the second connector body 171, allowing the second locking / releasing member 173 to rotate relative to the second connector body 171 to switch between a locked position and an unlocked position. For example, the second locking / releasing member 173 can be configured as a sheet-like structure rotatably connected to the outer wall of the second connector body 171, allowing the sheet-like structure to flip relative to the second connector body 171 to open or cover the second mounting hole 1712. Alternatively, the second locking / releasing member 173 can be configured as a rotatable bushing structure fitted onto the second connector body 171, with a clearance hole provided on the side wall of the bushing structure. By rotating the bushing structure, the clearance hole can be positioned opposite to or offset from the second mounting hole 1712. When the bushing structure is in the locked position, the clearance hole is offset from the second mounting hole 1712; when the bushing structure is in the unlocked position, the clearance hole is opposite to the second mounting hole 1712, at which point at least part of the second snap-fit ​​member 172 can be withdrawn into the clearance hole.

[0102] Please refer to Figure 5 In one embodiment, the second female connector 17 further includes a second elastic reset member 174, the two ends of which abut against the second locking and releasing member 173 and the second connector body 171, respectively, so that the second locking and releasing member 173 has a tendency to slide to the locked position.

[0103] In this embodiment, the second female connector 17 further includes a second elastic reset member 174. Both ends of the second elastic reset member 174 abut against the second locking / releasing member 173 and the second female connector 17, respectively, so that the second locking / releasing member 173 tends to slide to the locked position. This arrangement prevents the second locking / releasing member 173 from sliding to the unlocked position and thus failing to lock the second locking / releasing member 172, which would affect the stability of locking the second male connector 16, when the second locking / releasing member 172 needs to be pressed into the second insertion hole 1711 to lock the second male connector 16. Furthermore, after the second locking / releasing member 173 is slid to the unlocked position, simply releasing the external force applied to the second locking / releasing member 173 allows the second elastic reset member 174 to push the second locking / releasing member 173 back to the locked position, improving ease of use and preventing the problem of forgetting to push the second locking / releasing member 173 back to the locked position, ensuring a stable connection between the second male connector 16 and the second female connector 17.

[0104] Please refer to Figure 5 In some embodiments, the second bushing includes a second locking section 1731 and a second unlocking section 1732 connected together. Along the direction away from the second locking section 1731, the inner wall of the second unlocking section 1732 gradually moves away from the second connector body 171. When the second bushing is in the locked position, the second locking section 1731 is opposite to the second mounting hole 1712 and presses against the second snap-fit ​​member 172 so that the second snap-fit ​​member 172 protrudes from the inner wall of the second insertion hole 1711. When the second bushing is in the unlocked position, the second unlocking section 1732 is opposite to the second mounting hole 1712, and the second snap-fit ​​member 172 can be withdrawn from the second insertion hole 1711.

[0105] In this embodiment, the second bushing includes a second locking section 1731 and a second unlocking section 1732. The second locking section 1731 and the second unlocking section 1732 are arranged sequentially along the direction of sliding locking of the second bushing. That is, when the inner hole contour of the second locking section 1731 used to fit with the second connector body 171 is adapted to the cross-sectional contour of the second connector body 171, and the inner hole diameter of the second locking section 1731 is smaller than the inner hole diameter of the second unlocking section 1732. With this configuration, when the second locking section 1731 is slid to the position of the second mounting hole 1712, the second locking section 1731 covers the second mounting hole 1712 and limits the second latching member 172, preventing the second latching member 172 from exiting outward from the second insertion hole 1711 and the second mounting hole 1712. When the second unlocking section 1732 is slid to the position of the second mounting hole 1712, since the inner wall of the second unlocking section 1732 and the outer wall of the second connector body 171 are spaced apart to form a clearance space, at least part of the second latching member 172 can be retracted into the clearance space, thereby allowing the second latching member 172 to exit from the second insertion hole 1711. Furthermore, due to the configuration of the second unlocking section 1732, the second latching member 172 is still limited between the second locking release member 173 and the second connector body 171, preventing the second latching member 172 from completely detaching from the second connector body 171.

[0106] Meanwhile, in the direction away from the second locking section 1731, the inner diameter of the second unlocking section 1732 gradually increases, causing the inner wall of the second unlocking section 1732 to form an inclined surface that gradually moves away from the second connector body 171. With this configuration, as the second locking / releasing member 173 is slid from the unlocked position to the locked position, the inner wall of the second unlocking section 1732 gradually presses the second locking / releasing member 172 into the second mounting hole 1712, eliminating the need to press the second locking / releasing member 172 in before sliding the second locking / releasing member 173, thus improving ease of use.

[0107] Please refer to Figure 5 In one embodiment, the second bushing further includes a second connecting section 1733, which is connected to the end of the second locking section 1731 away from the second unlocking section 1732. The second connecting section 1733 is sleeved on the outside of the second connector body 171 and is spaced apart from the outer wall of the second connector body 171 to form an installation space. The outer wall of the second connector body 171 is provided with a second stop structure 1714, and the second elastic reset member 174 is located in the installation space and sandwiched between the second stop structure 1714 and the second locking section 1731.

[0108] In this embodiment, the second bushing further includes a second connecting section 1733. The inner diameter of the second connecting section 1733 is larger than the inner diameter of the second locking section 1731, such that the second connecting section 1733 is spaced apart from the outer wall of the second connector body 171, forming an installation space for installing the second elastic reset member 174. The second elastic reset member 174 is a spring, sleeved on the outside of the second connector body 171 and housed in the installation space. The two ends of the second elastic reset member 174 abut against the second stop structure 1714 on the outer wall of the second connector body 171 and the end face of the locking section facing the second connecting section 1733, respectively. This arrangement allows the second connecting section 1733 to shield and protect the second elastic reset member 174, preventing it from being directly exposed to the outside, reducing the risk of damage to the second elastic reset member 174, and improving safety. The second stop structure 1714 can be integrally formed with the second connector body 171, or it can be connected to the second connector body 171.

[0109] Please refer to Figure 5 In one embodiment, the second female connector 17 further includes a second limiting member 175 protruding from the outer side wall of the second connector body 171. Along the sliding locking direction of the second locking member 173, the second limiting member 175 is located on one side of the second mounting hole 1712, and the second bushing abuts against the second limiting member 175 when it is in the locked position.

[0110] In this embodiment, the second limiting member 175 can limit the second locking / releasing member 173 when it slides to the locking position, ensuring that the second locking / releasing member 173 can accurately reach the locking position, so that the second locking section 1731 accurately covers the position of the second mounting hole 1712 to limit the second latching member 172. In addition, when the second locking / releasing member 173 slides to the unlocking position and the second latching member 172 exits into the clearance space between the second unlocking section 1732 and the outer wall of the second connector body 171, the second limiting member 175 can also limit the second latching member 172 to prevent it from falling out of the clearance space.

[0111] Please refer to Figure 5In one embodiment, the sidewall of the second slot 163 is inclined and can abut against the second locking member 172 when the second male connector 16 is withdrawn from the second insertion hole 1711, thereby pushing the second locking member 172 out of the second insertion hole 1711. With this configuration, when the second male connector 16 needs to be pulled out, it is not necessary to first withdraw the second locking member 172 from the second insertion hole 1711; the second locking member 172 can automatically withdraw during the process of pulling out the second male connector 16, improving the convenience of separating the second male connector 16 and the second female connector 17. In some embodiments, the second female connector 17 also includes a second locking release member 173. In this case, moving the second locking release member 173 to the unlocked position allows the second male connector 16 to be pulled out directly, which is also relatively convenient.

[0112] In some embodiments, the second female connector 17 has an elastic structure in the second mounting hole 1712 that abuts against the second snap-fit ​​member 172, giving the second snap-fit ​​member 172 a tendency to enter the second insertion hole 1711. In this case, during the process of pulling out the second male connector 16, the second male connector 16 pushes the second snap-fit ​​member 172 to compress the elastic structure and cause the elastic structure to contract. After the second male connector 16 is pulled out, the elastic structure can automatically drive the second snap-fit ​​member 172 to reset so that part of the second snap-fit ​​member 172 enters the second insertion hole 1711.

[0113] Please refer to Figure 5 In one embodiment, the surface of the second latching member 172 facing the second insertion hole 1711 is curved. The second latching member 172 can be entirely spherical, or only the surface facing the second insertion hole 1711 can be curved (e.g., spherical) to reduce friction between the second latching member 172 and the second male connector 16 when the second male connector 16 enters and exits the second insertion hole 1711. In some embodiments, by setting the sidewall of the second slot 163 as an inclined surface to push the second latching member 172 out of the second insertion hole 1711 when the second male connector 16 is pulled out, setting the surface of the second latching member 172 as curved can also make the engagement between the second latching member 172 and the inclined sidewall of the second slot 163 smoother.

[0114] Combined with reference Figure 4 and Figure 7In one embodiment, the second female connector 17 is further provided with a second movable hole 1713 communicating with the end of the second insertion hole 1711. The second movable hole 1713 is provided with a second mating member 178, a second fixing member 176 and a second elastic member 177. The second fixing member 176 is located on the side of the second mating member 178 facing away from the second insertion hole 1711. The second elastic member 177 is sandwiched between the second fixing member 176 and the second mating member 178. When the second male connector 16 is inserted into the second insertion hole 1711, it can push the second mating member 178 to move towards the second fixing member 176 so that the second mating member 178 abuts against the second fixing member 176 and conducts communication.

[0115] In this embodiment, a second movable hole 1713 is also provided in the second connector body 171, and the second movable hole 1713 is located at the end of the second insertion hole 1711 opposite to the insertion port. A second docking member 178, a second fixing member 176, and a second elastic member 177 are provided in the second movable hole 1713. Both the second fixing member 176 and the second docking member 178 are provided with guide wire channels. The second fixing member 176 is connected to the second connector body 171, and can be integrally formed with the second connector body 171 or can be detachably connected. The second docking member 178 is movably disposed. The second elastic member 177 is set as a spring and is clamped between the second fixing member 176 and the second docking member 178. When the second male connector 16 is not inserted into the second female connector 17, the second fixing member 176 and the second docking member 178 are spaced apart. When the second male connector 16 is inserted into the second insertion hole 1711, the second male connector 16 abuts against the second mating member 178, and pushes the second mating member 178 closer to the second fixing member 176 until the second mating member 178 abuts against the second fixing member 176 and they are interconnected. This arrangement ensures that the second male connector 16 and the second mating member 178 are well fitted together by the force of the second elastic member 177, so that the wire guide channel of the second male connector 16 and the wire guide channel of the second mating member 178 are well connected, avoiding gaps between the second male connector 16 and the second mating member 178, thus preventing the welding wire from failing to accurately enter the second male connector 16 when fed from the second mating member 178 to the second male connector 16. The abutment of the second mating member 178 against the second fixing member 176 not only limits the position of the second mating member 178, but also prevents the welding wire from failing to accurately enter the second mating member 178 after being output from the second fixing member 176.

[0116] In some embodiments, a limiting structure may be formed between the second movable hole 1713 and the second insertion hole 1711. The limiting structure may be arranged around the second movable hole 1713 in the circumferential direction, or it may be a protrusion protruding from the side wall of the second movable hole 1713. When the second male connector 16 does not abut against the second mating member 178, the second mating member 178 abuts against the limiting structure under the action of the second elastic member 177 to limit the second mating member 178 and prevent the second mating member 178 from falling out of the second connector body 171.

[0117] Please refer to Figure 5 In one embodiment, the second male connector 16 includes a second main body section 161 and a second insertion section 162 connected to each other. The second main body section 161 is provided with a second slot 163, and the second insertion section 162 is inserted into the wire inlet end of the wire feeding tube 11. The second main body section 161 is used to insert and cooperate with the second female connector 17.

[0118] In this embodiment, the second male connector 16 is disposed in the wire feeding tube assembly 10, and the second female connector 17 is disposed in the fixed tube 151. The second main body section 161 of the second male connector 16 is used to insert and cooperate with the second female connector 17, and has the aforementioned second slot 163. The second insertion section 162 is inserted into the wire inlet end of the wire feeding tube 11 so that the second male connector 16 is connected to the wire feeding tube 11, making disassembly and assembly more convenient.

[0119] In some embodiments, one end of the fixing tube 151 can be inserted into the second connector body 171 and locked by means of threaded engagement, so that the fixing tube 151 and the second female connector 17 are stably connected and easy to disassemble and assemble.

[0120] Please refer to Figure 5 In one embodiment, a second limiting step is formed between the second main body segment 161 and the second insertion segment 162, facing the second insertion segment 162. This arrangement can limit the insertion length of the second male connector 16 and the wire feeding tube 11, prevent the second male connector 16 from being fully inserted into the wire feeding tube 11, and ensure that the second slot 163 can be accurately aligned with the second snap-fit ​​member 172 when the second main body segment 161 and the second female connector 17 are inserted and engaged.

[0121] In some embodiments, the second insertion segment 162 and the wire feeding tube 11 may be interference-fitted to improve the connection strength between the second male connector 16 and the wire feeding tube 11. Specifically, a portion of the end structure of the second insertion segment 162 may be a tapered structure, with the maximum cross-sectional dimension of the portion of the second insertion segment 162 inserted into the wire feeding tube 11 slightly larger than the wire feeding tube 11. This facilitates the insertion of the second insertion segment 162 into the wire feeding tube 11 and ensures a stable interference-fit connection between the second insertion segment 162 and the wire feeding tube 11.

[0122] Combined with reference Figure 2 and Figure 5 In one embodiment, the wire feeding tube assembly 10 further includes a second constriction member 18, which is sleeved on the wire feeding tube 11 and the second main body section 161. One end of the second constriction member 18 is connected to the second main body section 161, and the other end of the second constriction member 18 is clamped to the wire feeding tube 11 so that the wire feeding tube 11 and the second insertion section 162 are tightly fitted together. This arrangement can improve the connection strength between the second male connector 16 and the wire feeding tube 11 and prevent the second insertion section 162 from coming out of the wire feeding tube 11. The connection method between the second constriction member 18 and the second main body section 161 can be a threaded connection or a set screw tightening, etc., and is not limited here.

[0123] Please refer to Figure 2 In one embodiment, the wire feeding tube 11 includes an outer tube 111 and an inner tube 112 inserted in the outer tube 111, wherein the inner tube 112 is made of Teflon.

[0124] In this embodiment, the wire feeding tube 11 includes an inner tube 112 made of Teflon material and an outer casing covering the inner tube 112. The outer casing can be made of rubber, metal, or other materials. Using Teflon material for the inner tube 112 can reduce the coefficient of friction of the inner wall of the wire guide channel, reduce the friction between the welding wire and the wire feeding tube 11 when the wire passes through it, make the wire feeding process smoother, and reduce the risk of wire blockage in the wire feeding tube 11.

[0125] Please refer to Figure 4 and Figure 5 In some embodiments, the inner tube 112 may extend into the first male connector 13 or the first female connector 101 connected to the wire feeding tube 11. When the wire feeding tube 11 is connected to the wire feeding nozzle 12 through the adjustment structure 15, the inner tube 112 may also extend into the second male connector 16 or the second female connector 17 connected to the wire feeding tube 11, thereby reducing the risk of wire blockage in the wire feeding tube assembly 10.

[0126] Please refer to Figure 2In one embodiment, the wire feeding tube assembly 10 further includes a fixing seat 19, which can be used to fix the wire feeding tube assembly 10. For example, the wire feeding tube assembly 10 can be connected to the welding head of a welding machine, so that the wire feeding nozzle 12 can move with the welding head to different welding positions, and the wire feeding nozzle 12 and the welding head face the same welding position. The fixing seat 19 can be connected to the wire feeding tube 11, but when the wire feeding tube assembly 10 is provided with an adjustment structure 15, the fixing seat 19 can also be provided on the adjustment structure 15. Taking the fixed seat 19 as an example of being provided on the adjusting structure 15, in some embodiments, the fixed seat 19 is sleeved on the adjusting structure 15 to improve the connection strength between the fixed seat 19 and the adjusting structure 15, making it difficult for the fixed seat 19 and the adjusting structure 15 to separate. In addition, the fixed seat 19 can be movable relative to the adjusting structure 15 to adjust the relative position of the fixed seat 19 on the adjusting structure 15, so as to adjust the fixed position of the fixed seat 19 or adjust the position of the wire feeding nozzle 12 after fixing the wire feeding tube assembly 10. The fixed seat 19 can be clamped and fixed by two nuts sleeved on the adjusting structure 15, and the position of the fixed seat 19 on the adjusting structure 15 can be adjusted by adjusting the position of the two nuts.

[0127] Please refer to Figure 1 This application also proposes a wire feeding device 100, which includes a wire feeder 20 and a wire feeding tube assembly 10 as described in any of the foregoing embodiments. The wire feeding tube 11 of the wire feeding tube assembly 10 is detachably connected to the wire feeder 20 via a first male connector 13 and a first female connector 101. The specific structure of the wire feeding tube assembly 10 is described in any of the foregoing embodiments and will not be repeated here. The wire feeding device 100 is used to provide welding wire to the welding position during the welding process. The wire feeding device 100 includes a wire feeder 20 and a wire feeding tube assembly 10 connected to the wire feeder 20. The wire feeder 20 is provided with a conveying mechanism 21 for driving the welding wire to move. The conveying mechanism 21 has an inlet 211 and an outlet. The welding wire can enter the conveying mechanism 21 from the inlet 211 and be driven by the conveying mechanism 21 to be delivered from the outlet. The outlet is connected to the first male connector 13 or the first female connector 101. For example, a first male connector 13 can be connected to the wire inlet end of the wire feeding tube 11, and a first female connector 101 can be provided in the wire feeder 20; or, a first female connector 101 can be connected to the wire inlet end of the wire feeding tube 11, and a first male connector 13 can be provided in the wire feeder 20. Both of these methods allow the wire feeding tube 11 and the wire feeder 20 to be detachably connected. Furthermore, both the first male connector 13 and the first female connector 101 are provided with wire guide channels. When the wire feeding tube 11 and the wire feeder 20 are connected through the first male connector 13 and the first female connector 101, they are also interconnected through the wire guide channels in the first male connector 13 and the first female connector 101, allowing the welding wire from the wire feeder 20 to be fed into the wire feeding tube 11.

[0128] Since the wire feeding tube assembly 10 proposed in this application applies all the technical solutions of all the aforementioned embodiments, it has at least all the beneficial effects of all the aforementioned technical solutions, which will not be elaborated here.

[0129] Combined with reference Figures 1 to 3 In some embodiments, the first male connector 13 is located at the wire inlet end of the wire feeding tube 11, and the first female connector 101 is connected to the wire feeder 20. A guide nozzle sleeve 1019 connected to the first connector body 1011 can be provided in the first female connector 101. The guide nozzle sleeve 1019 can be inserted into the wire outlet of the wire feeding nozzle 12, so that the first female connector 101 is connected to the wire feeder 20. The guide nozzle sleeve 1019 can be detachably connected to the first connector body 1011, or it can be integrally formed with the first connector body 1011; no limitation is made here.

[0130] This application also proposes a welding device, which includes a welding machine and a wire feeding device 100 as described in the foregoing embodiments. The welding machine may be, but is not limited to, a laser welding machine, an argon arc welding machine, etc. During welding, the wire feeding device 100 can transport the welding wire to the welding position through the wire feeding tube assembly 10, and use the laser, high voltage current or flame emitted by the welding machine to melt the welding wire to fill the weld gap.

[0131] Since the welding equipment proposed in this application applies all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects of all the foregoing technical solutions, which will not be elaborated here.

[0132] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wire feeding tube assembly, characterized in that, The wire feeding tube assembly includes: Wire feed tube; A wire feeding nozzle is connected to the wire outlet end of the wire feeding tube; A first male connector and a first female connector, one of which is connected to the wire inlet end of the wire feeding tube, and the other of which is used to be installed at the wire outlet of the wire feeder. The first female connector is provided with a first insertion hole, and the first male connector is inserted into the first insertion hole and engaged with the first female connector to communicate with the first female connector.

2. The wire feeding tube assembly as described in claim 1, characterized in that, The first female connector includes a first connector body and a first snap-fit ​​member. The end of the first connector body is provided with the first insertion hole, and the side wall of the first connector body is provided with a first mounting hole communicating with the first insertion hole. The first snap-fit ​​member is movably disposed in the first mounting hole, and part of the first snap-fit ​​member can enter and exit the first insertion hole. The outer side wall of the first male connector is provided with a first slot. When the first male connector is inserted into the first insertion hole, the first snap-fit ​​component is snapped into the first slot.

3. The wire feeding tube assembly as described in claim 2, characterized in that, The first mounting hole extends to the outer wall of the first connector body. The first female connector also includes a first locking / releasing member that is movably disposed on the outer wall of the first connector body. The first locking / releasing member has a locked position and an unlocked position relative to the first connector body. When the first locking / releasing member is in the locked position, it covers the first mounting hole and abuts against the first snap-fit ​​member, so that part of the first snap-fit ​​member enters the first insertion hole. When the first locking / releasing member is in the unlocked position, it is misaligned with the first mounting hole.

4. The wire feeding tube assembly as described in claim 3, characterized in that, The first locking and unlocking component is configured as a first bushing, which includes a first locking section and a first unlocking section connected to each other. Along the direction away from the first locking section, the inner wall of the first unlocking section gradually moves away from the first connector body. When the first bushing is in the locked position, the first locking section is opposite to the first mounting hole and presses against the first snap-fit ​​member, causing the first snap-fit ​​member to protrude from the inner wall of the first insertion hole; when the first bushing is in the unlocked position, the first unlocking section is opposite to the first mounting hole, and the first snap-fit ​​member can be withdrawn from the first insertion hole. And / or, the first female connector further includes a first elastic reset member, the two ends of which abut against the first locking / releasing member and the first connector body, respectively, so that the first locking / releasing member has a tendency to slide to the locked position.

5. The wire feeding tube assembly as described in claim 1, characterized in that, The first connector body is also provided with a first movable hole communicating with the end of the first insertion hole, and the first movable hole is provided with a first mating member, a first fixing member and a first elastic member; The first fixing member is located on the side of the first docking member facing away from the first insertion hole. The first elastic member is sandwiched between the first fixing member and the first docking member. When the first male connector is inserted into the first insertion hole, it can push the first docking member to move towards the first fixing member so that the first docking member abuts against the first fixing member and conducts communication. And / or, the wire feeding tube includes an outer tube and an inner tube inserted into the outer tube, wherein the inner tube is made of Teflon.

6. The wire feeding tube assembly as described in any one of claims 1 to 5, characterized in that, The wire feeding tube assembly further includes an adjustment structure, the two ends of which are respectively connected to the wire feeding tube and the wire feeding nozzle, and at least part of the adjustment structure is slidably disposed relative to the wire feeding tube to adjust the distance between the wire feeding nozzle and the wire feeding tube.

7. The wire feeding tube assembly as described in claim 6, characterized in that, The adjustment structure includes a fixed tube connected to the wire feeding tube and an adjustment tube connected to the wire feeding nozzle. The adjustment tube is inserted into the fixed tube and can slide relative to the fixed tube to adjust the length of the adjustment structure.

8. The wire feeding tube assembly as described in claim 7, characterized in that, The wire feeding tube assembly further includes a second male connector and a second female connector, one of which is located at one end of the fixed tube, and the other of which is located at the wire outlet end of the wire feeding tube. The second female connector is provided with a second insertion hole, and the second male connector can be inserted into the second insertion hole and communicate with the second female connector.

9. The wire feeding tube assembly as described in claim 8, characterized in that, The second female connector includes a second connector body and a second snap-fit ​​component. The second connector body is provided with a second insertion hole, and the side wall of the second female connector is provided with a second mounting hole communicating with the second insertion hole. The second snap-fit ​​component is movably disposed in the second mounting hole, and part of the second snap-fit ​​component can enter and exit the second insertion hole. The outer wall of the second male connector is provided with a second slot. When the second male connector is inserted into the second insertion hole, the second snap-fit ​​element is snapped into the second slot.

10. The wire feeding tube assembly as described in claim 9, characterized in that, The second mounting hole extends to the outer wall of the second connector body. The second female connector also includes a second locking and releasing member and a second elastic reset member. The second locking and releasing member is movably disposed on the outer wall of the second connector body and has a locked position and an unlocked position relative to the second connector body. When the second locking release member is in the locked position, it covers the second mounting hole and abuts against the second snap-fit ​​member, causing part of the second snap-fit ​​member to enter the second insertion hole. When the second locking release member is in the unlocked position, it is misaligned with the second mounting hole. The two ends of the second elastic reset member abut against the second locking and releasing member and the second female connector respectively, so that the second locking and releasing member has a tendency to slide to the locked position; And / or, the second female connector is further provided with a second movable hole communicating with the end of the second insertion hole. The second movable hole is provided with a second mating member, a second fixing member and a second elastic member. The second fixing member is located on the side of the second mating member facing away from the second insertion hole, and the second elastic member is sandwiched between the second fixing member and the second mating member. When the second male connector is inserted into the second insertion hole, it can push the second mating member to move towards the side of the second fixing member, so that the second mating member abuts against the second fixing member and conducts electricity.

11. A wire feeding device, characterized in that, The wire feeding device includes a wire feeder and a wire feeding tube assembly as described in any one of claims 1 to 10, wherein the wire feeding tube of the wire feeding tube assembly is detachably connected to the wire feeder via a first male connector and a first female connector.

12. A welding device, characterized in that, The welding equipment includes a welding machine and a wire feeding device as described in claim 11.

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