A welding device for a space truss steel structure

Abstract

The utility model discloses a kind of net rack steel structure welding devices, relate to net rack steel construction technology field, and net rack steel structure welding device includes welding torch body, and welding torch body is connected with binding mechanism and connecting seat, and the binding mechanism includes bandage and winding assembly, one end of the bandage is fixed end connected with the welding torch body, the other end of the bandage is movable end connected with the winding assembly, the winding assembly is connected with the welding torch body, and the winding assembly winding and tighten movable end of the bandage;The connecting seat is equipped with quick release mechanism that detachable connection conducting nose is connected.The utility model does not need construction personnel to climb in high altitude and hand-held welding torch body in moving process, and conducting nose can be quickly replaced.

Description

Technical Field

[0001] This utility model belongs to the field of space frame steel construction technology, and specifically relates to a welding device for space frame steel structures. Background Technology

[0002] A space frame steel structure is a spatial structure system composed of multiple members connected by nodes according to a specific pattern. It features light weight, high strength, high rigidity, beautiful appearance, and convenient construction, and is widely used in large-span buildings.

[0003] In the welding construction of space frame steel structures, welding guns are usually used for welding operations. However, the ease of operation of welding guns at high altitudes has always been a problem that needs to be solved.

[0004] In existing technologies, traditional welding torches lack reliable auxiliary fixing devices. Construction workers need to frequently hold the welding torch or temporarily place it while climbing and moving at heights. This not only increases physical exertion but also poses a safety hazard of the welding torch accidentally falling. Especially in complex space frame steel structures, workers need to repeatedly adjust their positions, making it difficult to maintain stability while holding the welding torch. This leads to a decrease in welding accuracy, affects the overall quality of the steel structure, and increases the cost and time of rework and repair. Utility Model Content

[0005] The purpose of this utility model is to provide a welding device for space frame steel structures to solve one or more technical problems existing in the prior art.

[0006] The technical solution adopted to solve the above-mentioned technical problems is as follows: This utility model discloses a welding device for a space frame steel structure, including a welding torch body, wherein the welding torch body is connected to: A binding mechanism, comprising a binding strap and a winding assembly, wherein one end of the binding strap is a fixed end connected to the welding torch body, and the other end of the binding strap is a movable end connected to the winding assembly, the winding assembly being connected to the welding torch body, and the winding assembly winding and tightening the movable end of the binding strap; The connector is equipped with a quick-release mechanism for detachably connecting the conductive nozzle.

[0007] The present invention offers at least the following advantages: The welding torch body is equipped with a binding mechanism, allowing workers to secure the torch body to their arms. The binding mechanism includes a strap and a winding assembly. The fixed end of the strap is connected to the welding torch body, and the movable end is connected to the winding assembly. During use, workers can pull out the strap and insert their arms into it. The winding assembly then automatically winds and tightens the movable end of the strap, automatically and quickly adjusting the strap length according to the worker's arm size. This eliminates the need for workers to hold the welding torch body while climbing or moving, reducing labor intensity and preventing the risk of the torch falling. When welding at heights, workers can simply re-grip the torch body, making its use more flexible and stable, effectively improving welding accuracy and construction efficiency.

[0008] When the welding device for the space frame steel structure is not in use, the winding assembly automatically winds up and stores the binding straps, preventing the straps from getting tangled in other structures, allowing construction workers to access and use the welding device for the space frame steel structure more quickly.

[0009] The welding torch body is connected to the connecting seat. The quick-release mechanism is used to achieve the detachable connection between the conductive tip and the connecting seat, allowing construction personnel to quickly disassemble and replace the new conductive tip. This reduces the replacement time caused by damage to the conductive tip due to high temperature or other factors, significantly reduces the downtime of the welding torch body, meets the needs of continuous welding operations, and effectively improves the construction efficiency of the space frame steel.

[0010] As a further improvement to the above technical solution, the winding assembly includes a take-up shaft and a drive component. The two ends of the take-up shaft are rotatably connected to the welding torch body. The movable end is connected to the take-up shaft. The drive component is connected to the welding torch body. The output end of the drive component is connected to the take-up shaft to drive the take-up shaft to rotate and tighten the binding tape.

[0011] As a further improvement to the above technical solution, the driving component is a spiral spring.

[0012] As a further improvement to the above technical solution, the binding mechanism also includes a fixing base, the fixing end of the binding strap and the winding assembly are respectively connected to the fixing base, and the fixing base is detachably connected to the welding gun body.

[0013] As a further improvement to the above technical solution, the binding mechanism is also provided with a limiting component connected to the fixed seat. One end of the winding shaft is coaxially connected to a rotating block. The rotating block has multiple slots arranged circumferentially with its axis as the array center. The output end of the limiting component is inserted into one of the slots.

[0014] As a further improvement to the above technical solution, the limiting component includes a mounting base, a first elastic element, and an insert block. The mounting base is connected to the fixed base, and the mounting base is hollow to form a limiting cavity. The two ends of the first elastic element are respectively connected to the cavity wall of the limiting cavity and the insert block. The output end of the limiting component is the insert block, which corresponds to the rotating block and is inserted into a slot.

[0015] As a further improvement to the above technical solution, the connecting seat is provided with an opening away from the welding torch body, one end of the conductive nozzle is inserted into the mounting groove and is provided with a positioning groove, the quick-release mechanism is connected to the connecting seat, and the quick-release mechanism is provided with a connecting end that passes through the mounting groove and engages with the positioning groove.

[0016] As a further improvement to the above technical solution, the conductive nozzle is provided with two opposing positioning grooves, and the quick-release mechanism includes two sets of latching structures that are hinged together. Each latching structure includes a hinge rod, a connecting rod, a second elastic element, and a wedge. The two hinge rods are hinged to each other, and the hinge rod is hinged to the connecting rod. The outer wall surface of the connecting seat is provided with two latching grooves that communicate with the mounting groove. The wedge is located in the latching groove and passes through the second elastic element before connecting to the connecting rod. The wedge is the connecting end, and the two ends of the second elastic element are respectively connected to the wedge and the connecting seat.

[0017] As a further improvement to the above technical solution, the side of the wedge facing the mounting groove is an inclined surface. The wedge is configured such that when the conductive nozzle is inserted into the mounting groove, the conductive nozzle abuts against the inclined surface, forcing the wedge to squeeze the second elastic member and retract into the snap-fit ​​groove until the positioning groove is opposite to the snap-fit ​​groove.

[0018] As a further improvement to the above technical solution, the conductive nozzle is connected to two opposing positioning blocks, and the two positioning grooves are respectively disposed on the two positioning blocks; The mounting groove is a cylindrical groove. The mounting groove has two first sliding grooves and two second sliding grooves recessed inward along its groove wall. The first sliding groove extends along the insertion direction of the conductive nozzle. One end of the first sliding groove is connected to the opening of the mounting groove. The second sliding groove extends rotatably about the axis of the mounting groove. The two ends of the second sliding groove along the extension direction are respectively connected to the other end of the first sliding groove and the snap-fit ​​groove. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall structure of the steel frame welding device provided in this embodiment of the utility model; Figure 2This is a schematic diagram of the binding mechanism provided in an embodiment of the present invention; Figure 3 This is a schematic diagram showing the connection between the limiting component and the rotating block provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the connection between the conductive nozzle and the connector provided in this embodiment of the utility model.

[0020] The following labels are shown in the attached diagram: 100. Welding equipment for space frame steel structures; 200. Welding torch body; 210. Mounting bolts; 300. Binding mechanism; 310. Strap; 320. Winding assembly; 321. Rewinding shaft; 322. Turning block; 323. Slot; 324. Drive component; 325. Housing; 330. Fixing base; 331. Arc plate; 332. Connecting plate; 333. Through hole; 400, Connecting seat; 410, Mounting slot; 420, Snap-fit ​​slot; 430, First slide groove; 440, Second slide groove; 500. Conductive nozzle; 510. Positioning block; 520. Positioning groove; 600. Quick-release mechanism; 610. Hinge rod; 620. Connecting rod; 630. Second elastic element; 640. Wedge block; 700, Limiting component; 710, Mounting base; 720, First elastic element; 730, Insertion block; 731, Pulling block. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] In the existing technology, the contact tip of the welding torch is easily damaged due to high temperature or other factors during welding operations, requiring positioning maintenance or replacement. Generally, the contact tip is firmly connected to the welding torch, making it inconvenient for construction personnel to disassemble and replace it.

[0026] Reference Figures 1 to 4 The following are several embodiments of the welding device for space frame steel structure of this utility model.

[0027] like Figures 1 to 4 As shown, the space frame steel structure welding device 100 of this utility model embodiment includes a welding torch body 200, a binding mechanism 300, a connecting seat 400, and a quick-release mechanism 600.

[0028] Understandably, the binding mechanism 300 is connected to the welding torch body 200, and the binding mechanism 300 is used to bind the welding torch body 200 to the worker's arm. Specifically, the binding mechanism 300 includes a binding strap 310 and a winding assembly 320, such as... Figure 1 As shown, the two ends of the strap 310 are a fixed end and a movable end, respectively. The fixed end is connected to the welding gun body 200, fixing the two relatively. The winding assembly 320 is connected to the welding gun body 200, and the movable end is connected to the winding assembly 320. The construction worker puts his arm through the strap 310 to form a loop. The winding assembly 320 winds and tightens the movable end of the strap 310, thereby firmly connecting the welding gun body 200 to the construction worker's arm. This eliminates the need for the construction worker to frequently hold or repeatedly place the welding gun body 200 during high-altitude climbing and movement, reducing labor intensity and avoiding the risk of the welding gun body 200 falling. This makes high-altitude welding operations more flexible and stable, effectively improving welding accuracy and construction efficiency.

[0029] It is understood that the connector 400 is connected to the welding torch body 200, and the conductive tip 500 is connected to the welding torch body 200 via the connector 400. The connector 400 is equipped with a quick-release mechanism 600, which is detachably connected to the conductive tip 500. Figure 1 As shown, this allows construction workers to quickly disassemble and replace the new conductive nozzle 500, shortening the replacement time of the conductive nozzle 500, significantly reducing downtime, meeting the needs of continuous welding operations, and effectively improving construction efficiency.

[0030] It is understood that the winding assembly 320 includes a take-up shaft 321 and a drive element 324, such as Figure 2 As shown. Specifically, the winding assembly 320 also includes a housing 325, which is connected to the welding torch body 200. The housing 325 is hollow and forms a storage cavity, where the winding shaft 321 and the drive component 324 are located. The housing 325 protects the winding shaft 321 and the drive component 324 from being exposed and interfered with by the clothing, sweat, dust, and other impurities of the construction personnel. The two ends of the winding shaft 321 are rotatably connected to the inner wall of the housing 325 via bearings, enabling the winding shaft 321 to be rotatably connected to the welding torch body 200. The housing 325 has a passage connecting its outer wall and the storage cavity. The movable end of the strap 310 passes through the passage and is connected to the winding shaft 321 inside the storage cavity.

[0031] It is understandable that the drive component 324 is connected to the housing 325, such as... Figure 2 As shown, the drive component 324 is connected to the welding torch body 200 and the two are fixed relative to each other. The output end of the drive component 324 is connected to the take-up shaft 321. The output end of the drive component 324 drives the take-up shaft 321 to rotate around its own axis, thereby winding and tightening the movable end of the strap 310, so that the strap 310 can tie the welding torch body 200 tightly to the arm of the construction worker, realizing the function of the winding component 320 tightening the strap 310.

[0032] In some embodiments, the drive unit 324 can be a micro motor that can rotate in both directions. The output shaft of the micro motor is connected to the take-up shaft 321. When the micro motor is energized, it drives the take-up shaft 321 to rotate in both directions, thereby tightening and loosening the strap 310.

[0033] In this embodiment, the driving component 324 is a spiral spring. One end of the spiral spring is connected to the inner wall of the housing 325, and the other end of the spiral spring is connected to the winding shaft 321. When the construction worker pulls open the strap 310, the spiral spring generates torsional elastic deformation through the torque of the winding shaft 321. The construction worker can put his arm into the strap 310 and loosen the strap 310. At this time, the energy stored in the spiral spring drives the winding shaft 321 to rotate, thereby making the winding shaft 321 automatically wind the strap 310, realizing the automatic length adjustment function of the strap 310. There is no need for the construction worker to repeatedly start the micro motor and wait for the micro motor to loosen or tighten the strap 310, making the installation of the space frame steel structure welding device 100 and the arm more time-saving and convenient.

[0034] Understandably, the binding mechanism 300 also includes a fixing seat 330, such as Figure 2 As shown, the fixed end of the strap 310 and the winding assembly 320 are respectively connected to the fixed base 330, that is, the housing 325 is connected to the fixed base 330. The fixed base 330 is detachably connected to the welding torch body 200. In this way, the binding mechanism 300 can be quickly installed on the welding torch body 200 through the fixed base 330. When there is a micro motor failure, a decrease in the elasticity of the spiral spring, or a breakage of the strap 310, the binding mechanism 300 can be quickly removed from the welding torch body 200 and replaced, reducing the downtime of the welding torch body 200. The removed binding mechanism 300 can be repaired or the faulty part replaced during non-construction time, improving construction efficiency.

[0035] In some embodiments, the mounting base 330 and the welding torch body 200 can be detached by means of screws or snap-fit ​​connections.

[0036] In this embodiment, the fixing base 330 and the welding torch body 200 are detachable by bolts, that is, a mounting bolt 210 is provided between the fixing base 330 and the welding torch body 200, such as... Figure 1 As shown. Specifically, the fixing base 330 includes two connecting plates 332 and an arc plate 331. The arc plate 331 is arc-shaped, and the two ends of the arc plate 331 are respectively connected to the two connecting plates 332. The two connecting plates 332 extend in a direction away from the center of the arc plate 331 and are parallel to each other. The connecting plates 332 are provided with through holes 333, such as... Figure 2 As shown, the inner wall of the through hole 333 is provided with an internal thread corresponding to the mounting bolt 210. The welding torch body 200 is embedded between two connecting plates 332. The shank thread of the mounting bolt 210 passes through the through hole 333 and abuts against the outer wall surface of the welding torch body 200.

[0037] Furthermore, construction workers can adjust the position of the arm by adjusting the binding strap 310 to secure it, thereby adjusting the relative position of the arm and the welding torch body 200. Construction workers can also loosen the mounting bolts 210 with tools and adjust the connection position between the binding mechanism 300 and the welding torch body 200 along the length of the welding torch body 200, thereby adjusting the relative position of the arm and the welding torch body 200. This makes it easier for construction workers to grip the welding torch body 200 and improves the applicability of the space frame steel structure welding device 100.

[0038] Understandably, the through hole 333 and the mounting bolt 210 can be provided on only one of the connecting plates 332 to save installation costs. Each connecting plate 332 can have at least one threaded through hole 333 and mounting bolt 210 to ensure a secure connection between the fixing seat 330 and the welding torch body 200.

[0039] Understandably, the fixed end of the strap 310 is connected to the outer arc surface of one end of the arc plate 331, and the winding assembly 320 is connected to the outer arc surface of the other end of the arc plate 331, so that the inner side of the strap 310 and the inner arc surface of the arc plate 331 form the binding range for binding the arm. Since the arc plate 331 is arc-shaped, the inner arc surface of the arc plate 331 conforms to the shape of the worker's arm, making the binding mechanism 300 more tightly and comfortably connected to the arm.

[0040] Understandably, due to the arc structure of the arc plate 331, there is a gap between the strap 310 tightened by the winding component 320 and the arc plate 331. Construction workers can quickly grasp the strap 310 through the gap and pull the strap 310 out of the housing 325, making it convenient for construction workers to quickly insert their arms into the restraint area.

[0041] It is understandable that the housing 325 of the winding assembly 320 and the arc plate 331 can be connected by welding, nailing or gluing to fix them relatively.

[0042] Understandably, the binding mechanism 300 also includes a limit component 700, such as... Figure 3 As shown, the limiting component 700 is connected to the fixing base 330. The limiting component 700 is used to limit the length of the strap 310, preventing the strap 310 from being wound by the winding component 320 or pulled out by external force. Specifically, the limiting component 700 is connected to one end of the arc plate 331 with the winding component 320. One end of the winding shaft 321 passes through the housing 325 and extends out of the storage cavity. The extended end of the winding shaft 321 is connected to a rotating block 322. The axis of the rotating block 322 is collinear with the axis of the winding shaft 321. Figure 2 and Figure 3 As shown. The rotating block 322 is cylindrical, and with its own axis as the array center, multiple slots 323 are arranged circumferentially, such as... Figure 2 and Figure 3As shown, multiple slots 323 are recessed inward along the arc surface of the rotating block 322. The slots 323 extend in the radial direction of the rotating block 322. The output end of the limiting component 700 can be inserted into one of the slots 323. At this time, the spiral spring cannot drive the winding shaft 321 to rotate and tighten the strap 310, and the construction personnel cannot pull out more straps 310.

[0043] Understandably, when the space frame steel structure welding device 100 is not in use, the output end of the limiting component 700 can be taken away from the slot 323, so that the spiral spring drives the winding shaft 321 to automatically wind up, and then the output end of the limiting component 700 can be inserted into the corresponding slot 323. This avoids the situation where the space frame steel structure welding device 100 is pulled by other objects during transportation, causing the spiral spring to be in a stretched state for a long time, which would shorten its service life.

[0044] Understandably, when the steel structure welding device 100 is in use, the output end of the limiting component 700 is pulled away from the slot 323. At this time, the construction worker can pull out a longer strap 310 from the guide port, increasing the binding range before inserting it into the arm. Loosening the strap 310 allows the winding component 320 to automatically tighten the excess strap 310. Then, the output end of the limiting component 700 is inserted into the corresponding slot 323. At this point, the length of the strap 310 pulled out is fixed, and the binding range formed by the strap 310 and the arc plate 331 is fixed. The binding mechanism 300 can stably bind the construction worker's arm, ensuring the welding torch body 200 is secure and does not fall off. This prevents the strap 310 from being hooked by other objects during climbing or movement, causing the binding range to increase and slide on the arm, leading to detachment. It also prevents the construction worker from exerting force on their arm, causing muscle contraction and vasodilation, resulting in thickening of the arm's outer perimeter and the strap 310 being automatically pulled out to a larger binding range, causing it to slide on the arm.

[0045] In some embodiments, the limiting component 700 can be a linear drive structure such as a cylinder, and the output end of the limiting component 700 can be inserted into or withdrawn from the slot 323 by a switch.

[0046] In this embodiment, the limiting component 700 includes a mounting base 710, a first elastic member 720, and an insert block 730, such as Figure 3As shown. Specifically, the mounting base 710 is connected to the fixed base 330, that is, the mounting base 710 is connected to one end of the arc plate 331 with the winding assembly 320. The mounting base 710 is hollow to form a limiting cavity. The limiting cavity has a limiting hole at one end facing the rotating block 322. One end of the first elastic member 720 and the insert 730 are located in the limiting cavity. One end of the first elastic member 720 is connected to the cavity wall of the limiting cavity. The other end of the first elastic member 720 is connected to the insert 730. The insert 730 is slidably set along the limiting cavity. The other end of the insert 730 corresponds to the arc surface of the rotating block 322. The output end of the limiting assembly 700 is the insert 730. Under the elastic force of the first elastic member 720, the insert 730 passes through the limiting hole and is inserted into one of the slots 323, thereby preventing the rotating block 322 and its connected winding shaft 321 from rotating and limiting the length of the strap 310.

[0047] Furthermore, since it is difficult for construction personnel to remove the insert 730 when it is engaged in the slot 323, the limiting cavity is provided with a moving hole in the direction perpendicular to the movement of the insert 730. The moving hole extends in the direction of movement of the insert 730, and the insert 730 has a moving block 731 extending in the direction of the moving hole. Figure 3 As shown, the lever 731 extends out of the lever hole, making it easy for the construction personnel to move the lever 731 so that the insert 730 moves toward the limiting cavity, thereby disengaging from the slot 323. When the construction personnel release the lever 731, the insert 730 moves toward the rotating block 322 under the action of the first elastic member 720 and inserts into the slot 323.

[0048] Understandably, the connector 400 is provided with a mounting groove 410 with an opening away from the welding torch body 200, such as Figure 4 As shown, the conductive nozzle 500 includes an insertion end. The quick-release mechanism 600 is connected to the connector 400. The quick-release mechanism 600 includes a connecting end for achieving a stable connection between the conductive nozzle 500 and the connector 400. The connecting end is connected to the mounting groove 410. After the insertion end of the conductive nozzle 500 is inserted into the mounting groove 410, the connecting end passes through the mounting groove 410 and is connected to the insertion end.

[0049] In some embodiments, the insertion end of the conductive nozzle 500 is provided with a connection port, and the quick-release mechanism 600 can be a linear telescopic component such as a cylinder. The output end of the cylinder is inserted into the connection port, thereby realizing a stable connection and quick replacement between the conductive nozzle 500 and the welding torch body 200. This solves the problem in the prior art where the conductive nozzle 500 and the welding torch body 200 are connected by bolts, requiring tools to repeatedly tighten the bolts to achieve installation and removal, which is time-consuming. However, this requires the setting of an air source and a power source, increasing costs.

[0050] In this embodiment, the insertion end of the conductive nozzle 500 is provided with two linearly opposite positioning grooves 520, such as... Figure 4As shown, the quick-release mechanism 600 includes two connecting ends that are directly opposite each other. The quick-release mechanism 600 also includes a first state and a second state. Specifically, when the quick-release mechanism 600 is in the first state, it is not subjected to external force. At this time, the two connecting ends approach each other and are respectively engaged in the two positioning grooves 520. At this time, the conductive nozzle 500 is stably connected to the connecting seat 400.

[0051] When the quick-release mechanism 600 is subjected to external force and is in the second state, the two connecting ends move away from each other and disengage from the two positioning slots 520. At this time, the conductive nozzle 500 can be directly pulled out from the opening of the mounting slot 410, which is quick and easy. A new conductive nozzle 500 can be inserted and the positioning slots 520 and connecting ends can be aligned to release the external force on the quick-release mechanism 600. At this time, the quick-release mechanism 600 can return to the first state and securely connect the conductive nozzle 500.

[0052] It is understandable that the quick-release mechanism 600 includes two sets of latching structures that are hinged together. Each set of latching structures includes a hinge rod 610, a connecting rod 620, a second elastic element 630, and a wedge block 640, such as... Figure 4 As shown. Specifically, two hinge rods 610 are hinged together, and the ends of the two hinge rods 610 that are far apart from each other are respectively hinged to two connecting rods 620. The included angle between the hinge rods 610 and the connecting rods 620 is an obtuse angle, and the connecting rods 620 are L-shaped rods. The connecting seat 400 is cylindrical and has two snap-fit ​​grooves 420. The snap-fit ​​grooves 420 connect the mounting groove 410 and the outer wall of the connecting seat 400 in the radial direction. The wedge 640 and the second elastic member 630 are both located in the snap-fit ​​grooves 420. One end of the wedge 640 passes through the second elastic member 630 and connects to the other end of the connecting rod 620. The two ends of the second elastic member 630 are respectively connected to the wedge 640 and the connecting seat 400, with the connecting end being the wedge 640.

[0053] With this configuration, when the construction worker presses down on the two upward-arching hinge rods 610, the two connecting rods 620 move away from each other. At this time, the connecting rods 620 drive the connected wedges 640 to move outward, and the two wedges 640 move away from each other and disengage from the positioning groove 520. At this point, the quick-release mechanism 600 switches to the second state, the second elastic element 630 is compressed, and the construction worker can remove the conductive nozzle 500. When the construction worker stops pressing on the two hinge rods 610, the elastic potential energy stored in the second elastic element 630 forces the wedges 640 to move towards the mounting groove 410, and the two wedges 640 drive the two connecting rods 620 to move closer to each other, causing the two hinge rods 610 to arch upward again.

[0054] When installing the conductive nozzle 500, the construction worker presses the two hinge rods 610 again, causing the two wedges 640 to move away from each other and disengage from the installation groove 410, and inserts the conductive nozzle 500. When the positioning groove 520 is aligned with the wedge 640, the two hinge rods 610 are released. Under the elastic action of the second elastic element 630, one end of the wedge 640 is inserted into the positioning groove 520. At this time, the quick-release mechanism 600 is in the first state. One end of the connecting rod 620 moves with the wedge 640 and approaches and adheres to the connecting seat 400. The two hinge rods 610 arch upwards into a triangular shape, completing the installation of the conductive nozzle 500.

[0055] Furthermore, the wedge 640 has an inclined surface on the side facing the mounting groove 410, and the inclined surface is set at an angle along the insertion direction of the conductive nozzle 500. Thus, when installing the conductive nozzle 500, the installer does not need to press the two hinge rods 610; they only need to forcefully insert the conductive nozzle 500 into the mounting groove 410. During insertion, the conductive nozzle 500 will compress the inclined surface of the wedge 640, causing the wedge 640 to be squeezed out of the mounting groove 410 and retract into the snap-fit ​​groove 420. At this time, the second elastic element 630 is in a compressed state. After insertion, the installer can rotate the conductive nozzle 500 so that the positioning groove 520 of the conductive nozzle 500 aligns with the snap-fit ​​groove 420 of the connecting seat 400. The second elastic element 630 forces the wedge 640 to snap into the positioning groove 520 and automatically reset, completing the installation of the conductive nozzle 500.

[0056] Furthermore, the conductive nozzle 500 is connected to two opposing positioning blocks 510, and two positioning grooves 520 are respectively provided on the groove wall surface of the two positioning blocks 510 facing the mounting groove 410, such as... Figure 4 As shown.

[0057] In this embodiment, the mounting groove 410 is a cylindrical groove, and the mounting groove 410 has a first sliding groove 430 and a second sliding groove 440 recessed inward along its groove wall surface, such as... Figure 4 As shown, the first slide groove 430 and the second slide groove 440 are arranged along the insertion direction of the conductive nozzle 500. Two first slide grooves 430 are provided and extend along the insertion direction of the conductive nozzle 500. The two ends of the first slide groove 430 along the extension direction are respectively connected to the opening of the mounting groove 410 and the second slide groove 440. The second slide groove 440 extends rotatably about the axis of the mounting groove 410. The two ends of the second slide groove 440 along the extension direction are respectively connected to the first slide groove 430 and the snap-fit ​​groove 420.

[0058] With this configuration, when installing the conductive nozzle 500, the positioning blocks 510 at both ends of the conductive nozzle 500 are aligned with the two first sliding grooves 430 and then inserted into the mounting groove 410. At this time, the positioning blocks 510 slide along the first sliding groove 430 into the second sliding groove 440. If the wedge block 640 has an inclined surface, it is not necessary to press the two arched hinge rods 610 to retract the wedge block 640 into the locking groove 420. Then, the conductive nozzle 500 is rotated, and the positioning blocks 510 slide along the second sliding groove 440 until they are aligned with the locking groove 420. At this time, the positioning groove 520 on the positioning block 510 is opposite to the locking groove 420. The hinge rods 610 are released, and the second elastic element 630 drives the wedge block 640 to lock into the positioning groove 520, thus strengthening the connection between the conductive nozzle 500 and the connecting seat 400.

[0059] In this embodiment, both the first elastic element 720 and the second elastic element 630 are springs.

[0060] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A welding device for space frame steel structures, comprising a welding torch body, characterized in that, The welding torch body is connected to: A binding mechanism, comprising a binding strap and a winding assembly, wherein one end of the binding strap is a fixed end connected to the welding torch body, and the other end of the binding strap is a movable end connected to the winding assembly, the winding assembly being connected to the welding torch body, and the winding assembly winding and tightening the movable end of the binding strap; The connector is equipped with a quick-release mechanism for detachably connecting the conductive nozzle.

2. The welding device for space frame steel structures according to claim 1, characterized in that, The winding assembly includes a take-up shaft and a drive component. The two ends of the take-up shaft are rotatably connected to the welding torch body. The movable end is connected to the take-up shaft. The drive component is connected to the welding torch body. The output end of the drive component is connected to the take-up shaft to drive the take-up shaft to rotate and tighten the binding tape.

3. The welding device for space frame steel structures according to claim 2, characterized in that, The driving component is a spiral spring.

4. The welding device for space frame steel structures according to claim 2, characterized in that, The binding mechanism also includes a fixing base, the fixing end of the binding strap and the winding assembly are respectively connected to the fixing base, and the fixing base is detachably connected to the welding torch body.

5. The welding device for space frame steel structures according to claim 4, characterized in that, The binding mechanism is further provided with a limiting component connected to the fixed base. One end of the take-up shaft is coaxially connected to a rotating block. The rotating block has multiple slots arranged circumferentially with its axis as the array center. The output end of the limiting component is inserted into one of the slots.

6. The welding device for space frame steel structures according to claim 5, characterized in that, The limiting component includes a mounting base, a first elastic element, and an insert block. The mounting base is connected to the fixed base and is hollow to form a limiting cavity. The two ends of the first elastic element are respectively connected to the cavity wall of the limiting cavity and the insert block. The output end of the limiting component is the insert block, which corresponds to the rotating block and is inserted into a slot.

7. The welding device for space frame steel structures according to claim 1, characterized in that, The connector has an opening away from the welding torch body in the mounting groove. One end of the conductive nozzle is inserted into the mounting groove and has a positioning groove. The quick-release mechanism is connected to the connector and has a connecting end that passes through the mounting groove and engages with the positioning groove.

8. The welding device for space frame steel structures according to claim 7, characterized in that, The conductive nozzle is provided with two opposing positioning grooves. The quick-release mechanism includes two sets of latching structures that are hinged together. Each latching structure includes a hinge rod, a connecting rod, a second elastic element, and a wedge. The two hinge rods are hinged to each other. The hinge rod is hinged to the connecting rod. The outer wall of the connecting seat is provided with two latching grooves that communicate with the mounting groove. The wedge is located in the latching groove and passes through the second elastic element before connecting to the connecting rod. The wedge is the connecting end. The two ends of the second elastic element are respectively connected to the wedge and the connecting seat.

9. The welding device for space frame steel structures according to claim 8, characterized in that, The wedge has an inclined surface on the side facing the mounting groove. The wedge is configured such that when the conductive nozzle is inserted into the mounting groove, the conductive nozzle abuts against the inclined surface, forcing the wedge to squeeze the second elastic member and retract into the snap-fit ​​groove until the positioning groove is opposite to the snap-fit ​​groove.

10. The welding device for space frame steel structures according to claim 8 or 9, characterized in that, The conductive nozzle is connected to two opposing positioning blocks, and the two positioning slots are respectively provided on the two positioning blocks; The mounting groove is a cylindrical groove. The mounting groove has two first sliding grooves and two second sliding grooves recessed inward along its groove wall. The first sliding groove extends along the insertion direction of the conductive nozzle. One end of the first sliding groove is connected to the opening of the mounting groove. The second sliding groove extends rotatably about the axis of the mounting groove. The two ends of the second sliding groove along the extension direction are respectively connected to the other end of the first sliding groove and the snap-fit ​​groove.

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