Sports equipment welding device

Abstract

The invention belongs to the technical field of welding equipment, and particularly relates to a sports equipment welding device which comprises a locking mechanism. The locking mechanism comprises an arc-shaped block and two locking rings; the two sides of the arc-shaped block are each rotationally connected with a locking ring. The sides, away from the arc-shaped blocks, of the two locking rings are jointly engaged with a locking bolt in a threaded mode. A first screw rod is rotationally mounted on the arc-shaped block; a U-shaped ring is arranged below the locking mechanism; the first screw rod penetrates through the U-shaped ring and is in threaded engagement with the U-shaped ring; threaded columns are fixedly connected to the two end faces of the U-shaped ring. The two threaded columns are each provided with a welding positioning mechanism, and the welding positioning mechanisms are used for conducting positioning welding on a to-be-welded tubular component. And by arranging the welding positioning mechanism, the tubular part can be limited and fixed, so that the tubular part does not need to be limited and fixed manually.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding equipment, and specifically relates to a welding device for sports equipment. Background Art

[0002] Sports equipment refers to all kinds of instruments, equipment and supplies used in competitive sports competitions and fitness exercises. Sports equipment refers to various tools and devices used in sports, and they play a crucial role in sports activities. These equipment not only help athletes train and compete, but also promote the popularization and development of sports;

[0003] Sports equipment generally includes ball sports equipment, fitness equipment, track and field equipment, and water sports equipment, etc. The fitness equipment in the community has the basic functions of sports equipment. For example, the horizontal bar can be used to exercise upper limb strength and body coordination, which is similar to the horizontal bar in artistic gymnastics in function, but is more suitable for ordinary residents' daily fitness in terms of specifications and design; The walking machine can help people simulate actions such as walking and running, exercise leg muscles and joints, and enhance cardiopulmonary function. It is a common aerobic fitness equipment;

[0004] Since most of the fitness equipment in the community is manufactured by welding steel pipes of different thicknesses, such as walking machines, stepping machines, tai chi wheels, and horizontal bars, etc., with the long-term use of the fitness equipment, the welded tubular components on the vertical pipes of the fitness equipment are prone to cracking or even separation of the welding points;

[0005] When manually welding the separated tubular components, it is necessary to manually lift the separated tubular components and press them against the welding point position to carry out welding. When welding alone, one hand needs to lift the tubular component and the other hand needs to carry out welding, which will increase the welding difficulty. When two people carry out welding, it will also increase the labor cost. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve the above technical problems, the present invention proposes a welding device for sports equipment. By setting a welding positioning mechanism, the tubular components can be limited and fixed, so that there is no need for manual limitation and fixation of the tubular components. The specific structure is as follows;

[0007] A welding device for sports equipment includes a locking mechanism; the locking mechanism is composed of an arc-shaped block and two locking rings;

[0008] One locking ring is rotatably connected to each side of the arc-shaped block; on the side of the two locking rings away from the arc-shaped block, a locking bolt is commonly threadedly engaged, and the locking bolt is used to lock the locking mechanism on the column of the fitness equipment;

[0009] A first screw is rotatably installed on the arc-shaped block, and the first screw extends downward; on both sides of the first screw, reinforcing rods are fixedly connected to the arc-shaped block, and the reinforcing rods extend downward;

[0010] Below the locking mechanism, there is a U-shaped ring; the first screw passes through the U-shaped ring and is threadedly engaged with the U-shaped ring. When the first screw is rotated, it will drive the U-shaped ring to move up and down;

[0011] The two reinforcing rods pass through the U-shaped ring and are slidably connected to the U-shaped ring;

[0012] Threaded posts are fixedly connected to both end faces of the U-shaped ring; welding positioning mechanisms are provided on both threaded posts, and the welding positioning mechanisms are used for positioning and welding the tubular components to be welded.

[0013] Preferably, both of the two welding positioning mechanisms include fixing blocks;

[0014] On one side end face of each of the two fixing blocks close to the threaded post, a threaded cylinder is rotatably installed, and the threaded cylinder is threadedly engaged with the threaded post;

[0015] Vertical plates are installed on the top end faces of the two fixing blocks; limiting discs are installed on the opposite side end faces of the two vertical plates;

[0016] Convex grooves are formed on the opposite side end faces of the two limiting discs; two convex blocks are slidably connected in each of the two convex grooves;

[0017] A second screw is rotatably connected in each of the two limiting discs, and the second screw passes through the convex groove, and taking the midline as the demarcation line, the threads on both sides of the demarcation line are opposite;

[0018] The second screw passes through the two convex blocks in the convex groove, and the convex blocks are located on both sides of the midline of the second screw and are threadedly engaged with the second screw;

[0019] Two arc-shaped limiting plates are arranged up and down between the two limiting discs, and the two arc-shaped limiting plates correspond to each other and are mirror-symmetrically arranged;

[0020] On the two side end faces of the two arc-shaped limiting plates close to the two limiting discs, they are in contact with the adjacent limiting discs, and the convex blocks in the convex grooves are fixedly connected to the adjacent arc-shaped limiting plates.

[0021] Preferably, rotating shafts are fixedly connected to the opposite side end faces of the two limiting discs;

[0022] The two rotating shafts pass through the adjacent vertical plates and partially extend to the opposite side of the two vertical plates; the rotating shafts are rotatably connected to the vertical plates;

[0023] Threads are provided on the surfaces of the rotating shafts extending to the opposite sides of the vertical plates; a locking nut is threadedly engaged with the threaded side of each rotating shaft, and the locking nut is used to lock and limit the position of the limiting disc.

[0024] Preferably, as shown in the figure, sliding grooves are provided on the top end faces of the two fixing blocks;

[0025] Driving blocks are slidably connected in the two sliding grooves; the driving blocks are fixedly connected to the upper vertical plates;

[0026] Third screw rods are rotatably connected in the two fixing blocks, and the third screw rods pass through the sliding grooves and through the driving blocks in the sliding grooves, and are threadedly engaged with the driving blocks.

[0027] Preferably, on the outer circles of the two rotating shafts, insertion holes are provided on the vertical plates in a uniformly arranged manner, and a plurality of insertion holes form a circle;

[0028] A resisting rod is slidably connected in each insertion hole, and a part of the side of the resisting rod facing the locking nut extends out of the insertion hole;

[0029] On the side of the locking nut close to the resisting rod, a pushing disc is fixedly connected to the outer circumferential surface of the locking nut. In the initial state, there is a gap between the pushing disc and the vertical plate, and the resisting rod is located in the gap between the pushing plate and the vertical plate.

[0030] Preferably, the two arc-shaped limiting plates are each composed of a left half plate and a right half plate;

[0031] The end faces on the opposite sides of the left half plate and the right half plate are fixedly connected to the adjacent convex blocks.

[0032] Preferably, locking teeth are provided on the inner circumferential surfaces of the two arc-shaped limiting plates.

[0033] Preferably, on the end face of each of the two left half plates close to the right half plate, a notch is provided;

[0034] On the end face of each of the right half plates close to the left half plate, a clamping block is fixedly connected. When the left half plate and the right half plate are attached, the clamping block will enter the notch.

[0035] The beneficial effects of the present invention are as follows:

[0036] 1. For a welding device for sports equipment according to the present invention, by using the arc-shaped limiting plates to limit and fix the individual tubular components, it is not necessary to manually lift the individual tubular components. At the same time, it can avoid the situation that the tubular components shake during manual lifting and welding, which may cause the welding position of the tubular components to be misaligned. After welding is completed, the arc-shaped limiting plates still fix and limit the tubular components, so as to prevent the situation that when manually lifting and welding and the molten pool metal at the welding position has not completely solidified, if the tubular components shake, it will cause the separation of the tubular components from the column.

[0037] 2. In the welding device for sports equipment according to the present invention, by controlling the up and down movement of the U-shaped ring, the welding positioning mechanism and the separate tubular component can be driven to move up and down, the position of the separate tubular component can be adjusted, so that the tubular component can be positioned according to the welding position. At the same time, since the limiting disc is rotatably installed on the vertical plate, when there is a certain angle between the tubular component and the column, at this time, the limiting disc can be rotated, so that the angle of the tubular component can be adjusted, so that the tubular component with different inclination angles can be welded, thereby improving the practicability of the welding positioning mechanism.

[0038] 3. In the welding device for sports equipment according to the present invention, when welding one end position of one side of the U-shaped tubular component, the U-shaped ring and the welding positioning mechanism can be adjusted to drive the U-shaped tubular component to move up or down, so that the distance from the end of the U-shaped tubular component to the welding point can be adjusted. At the same time, by controlling the overall movement of the vertical plate towards the column position, the U-shaped tubular component can be driven to contact the welding point. During this process, it can be avoided that since one side of the U-shaped tubular component is fixed, when manually welding the misaligned and separated side of the U-shaped tubular component, it is necessary to keep pushing the side of the U-shaped tubular component to be welded to position it. During welding, it is still necessary to manually push the side of the U-shaped tubular component to be welded to contact the column, so as to avoid the situation that the end of the U-shaped tubular component to be welded is misaligned with the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention will be further described below with reference to the accompanying drawings.

[0040] Figure 1 is a perspective view of the welding device of the present invention when welding a separate tubular component;

[0041] Figure 2 is a perspective view of the welding device of the present invention when welding a U-shaped tubular component;

[0042] Figure 3 is a structural diagram of the locking mechanism and the welding positioning mechanism in the present invention;

[0043] Figure 4 is a separated structural diagram of the locking mechanism and the welding positioning mechanism in the present invention;

[0044] Figure 5 is a side view of the welding device of the present invention;

[0045] Figure 6 is the present invention Figure 5 a stepped sectional view taken along line A-A in;

[0046] Figure 7 is the present invention Figure 6 a partial enlarged view at B in;

[0047] Figure 8 is a cross-sectional view of the C-C part in the present invention Figure 6 in the present invention;

[0048] Figure 9 is a partial enlarged view of the D part Figure 8 in the present invention.

[0049] In the figure: 1, arc-shaped block; 11, locking ring; 12, locking bolt; 13, column; 14, first screw; 15, reinforcing rod; 16, U-shaped ring; 17, threaded post; 2, fixed block; 21, threaded cylinder; 22, vertical plate; 23, chute; 24, driving block; 25, third screw; 3, limiting disc; 31, convex groove; 32, convex block; 33, second screw; 34, arc-shaped limiting plate; 341, left half plate; 342, right half plate; 343, locking teeth; 344, notch; 345, clamping block; 35, rotating shaft; 36, locking nut; 37, jack; 38, resisting rod; 39, pushing disc. Detailed implementation manners

[0050] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0051] Embodiment 1:

[0052] As Figures 1 to 9 shown, a welding device for sports equipment according to the present invention includes a locking mechanism; the locking mechanism is composed of an arc-shaped block 1 and two locking rings 11;

[0053] One locking ring 11 is rotatably connected to each side of the arc-shaped block 1; on the side of the two locking rings 11 away from the arc-shaped block 1, a locking bolt 12 is commonly threadedly engaged, and the locking bolt 12 is used to lock the locking mechanism on the column 13 of the fitness equipment;

[0054] A first screw 14 is rotatably installed on the arc-shaped block 1, and the first screw 14 extends downward; on both sides of the first screw 14 on the arc-shaped block 1, reinforcing rods 15 are fixedly connected, and the reinforcing rods 15 extend downward;

[0055] A U-shaped ring 16 is provided below the locking mechanism; the first screw 14 passes through the U-shaped ring 16 and is threadedly engaged with the U-shaped ring 16. When the first screw 14 is rotated, the U-shaped ring 16 will be driven to move up and down;

[0056] The two reinforcing rods 15 pass through the U-shaped ring 16 and are slidably connected to the U-shaped ring 16;

[0057] Both end faces of the U-shaped ring 16 are fixedly connected with threaded posts 17; welding positioning mechanisms are arranged on both of the threaded posts 17, and the welding positioning mechanisms are used for positioning and welding the tubular components to be welded;

[0058] In this embodiment, both of the welding positioning mechanisms include fixing blocks 2;

[0059] On one side end face of both of the fixing blocks 2 close to the threaded post 17, threaded cylinders 21 are rotatably installed, and the threaded cylinders 21 are meshed with the threaded posts 17;

[0060] On the top end faces of both of the fixing blocks 2, vertical plates 22 are installed; on one side end faces of both of the vertical plates 22 opposite to each other, limiting disks 3 are installed;

[0061] On one side end faces of both of the limiting disks 3 opposite to each other, convex grooves 31 are opened; two convex blocks 32 are slidably connected in both of the convex grooves 31;

[0062] In both of the limiting disks 3, a second screw rod 33 is rotatably connected, and the second screw rod 33 passes through the convex groove 31, and taking the midline as the demarcation line, the threads on both sides of the demarcation line are opposite;

[0063] The second screw rod 33 passes through the two convex blocks 32 in the convex groove 31, and the convex blocks 32 are located on both sides of the midline of the second screw rod 33 and are threadedly meshed with the second screw rod 33;

[0064] Between both of the limiting disks 3, two arc-shaped limiting plates 34 are arranged up and down, and the two arc-shaped limiting plates 34 correspond to each other and are mirror-symmetrically arranged;

[0065] On both side end faces of both of the arc-shaped limiting plates 34 close to the two limiting disks 3, they are attached to the adjacent limiting disks 3, and the convex blocks 32 in the convex grooves 31 are fixedly connected to the adjacent arc-shaped limiting plates 34;

[0066] In this embodiment, on one side end faces of both of the limiting disks 3 opposite to each other, rotating shafts 35 are fixedly connected;

[0067] Both of the rotating shafts 35 pass through the adjacent vertical plates 22 and partially extend to the opposite side of the two vertical plates 22; the rotating shafts 35 are rotatably connected with the vertical plates 22;

[0068] On the surfaces of both of the rotating shafts 35 extending to the opposite side of the vertical plates 22, threads are opened; on the threaded sides of the rotating shafts 35, locking nuts 36 are threadedly meshed, and the locking nuts 36 are used for locking the limiting disks 3;

[0069] Specifically, when a single tubular component on the fitness equipment needs to be welded after being separated from the vertical column 13, first lock the locking mechanism on the riser. First, rotate the locking ring 11 along the arc-shaped block 1 to separate the two locking rings 11. Then, fit the arc-shaped block 1 and the locking ring 11 to the vertical column 13. Subsequently, lock the two locking rings 11 through the locking bolt 12 and move the two locking rings 11 closer to each other until they are locked on the vertical column 13. At the same time, the U-shaped ring 16 will be sleeved on the vertical column 13. Then, align the threaded cylinders 21 on the two fixing blocks 2 with the threaded posts 17 on the U-shaped ring 16 and rotate the threaded cylinders 21 to gradually engage the threaded cylinders 21 with the threaded posts 17. When the threaded cylinders 21 are fully engaged with the threaded posts 17, the two fixing blocks 2 will be limited on the U-shaped ring 16, and then the single tubular component can be positioned;

[0070] More specifically, when positioning the single tubular component, first pass the single tubular component through between the two arc-shaped limiting plates 34. When the single tubular component is located between the two arc-shaped limiting plates 34, rotate the second screw rods 33 on the two limiting discs 3 at this time. When the second screw rods 33 rotate, they will drive the two convex blocks 32 to approach each other in the convex grooves 31, thereby driving the two arc-shaped limiting plates 34 to approach each other, so as to preliminarily limit the single tubular component. When the single tubular component is fixed, rotate the first screw rod 14 at this time. Since the first screw rod 14 is threadedly engaged with the U-shaped ring 16, it will push the U-shaped ring 16 to move up or down as a whole along the vertical column 13. At the same time, the U-shaped ring 16 will drive the overall welding positioning mechanism and the single tubular component to move up or down. When the single tubular component moves to the welding position, stop rotating the first screw rod 14. Then continue to rotate the second screw rod 33. After the second screw rod 33 rotates, it will continue to make the two arc-shaped limiting plates 34 approach each other, thereby further improving the fixing degree of the single tubular component. Then the single tubular component can be welded to the vertical column 13;

[0071] Further, since the limit disc 3 rotates on the column 13 through the rotating shaft 35, when there is a certain angle between the tubular component welded on the column 13 and the column 13, first, the single tubular component is clamped between the two arc-shaped limit plates 34. Then, the locking nut 36 is loosened. When the locking nut 36 is loosened, the tubular component can be rotated at this time. When the tubular component rotates, it will drive the arc-shaped limit plate 34 to rotate. At the same time, the arc-shaped limit plate 34 will drive the two limit discs 3 to rotate. At the same time, the limit disc 3 will drive the rotating shaft 35 to rotate along the vertical plate 22. When the tubular component rotates to the appropriate angle, the locking nut 36 is rotated at this time. The locking nut 36 can lock the limit disc 3, so that the tubular component located between the two arc-shaped limit plates 34 and the column 13 present a certain angle. Then, according to the welding position, the U-shaped ring 16 is controlled to move up or down, which will drive the overall welding positioning mechanism and the tubular component to move. When the tubular component moves to the welding position, welding can be carried out subsequently;

[0072] Furthermore, by using the arc-shaped limit plate 34 to limit and fix the single tubular component, it is not necessary to manually lift the single tubular component. At the same time, it can avoid the situation that the tubular component shakes when manually lifted during welding, so that the welding position of the tubular component is misaligned. After welding is completed, the arc-shaped limit plate 34 still fixes and limits the tubular component, so that it can prevent the situation that when manually lifting and welding and the molten pool metal at the welding position has not completely solidified, if the tubular component shakes, the tubular component and the column 13 will be separated;

[0073] At the same time, by controlling the up and down movement of the U-shaped ring 16, the welding positioning mechanism and the single tubular component can be driven to move up and down, and the position of the single tubular component can be adjusted, so that the tubular component can be positioned according to the welding position. At the same time, since the limit disc 3 is rotatably installed on the vertical plate 22, when there is a certain angle between the tubular component and the column 13, the angle of the tubular component can be adjusted by rotating the limit disc 3 at this time, so that the tubular component with different inclination angles can be welded, thus improving the practicability of the welding positioning mechanism.

[0074] Embodiment 2:

[0075] As Figure 2 shown, a chute 23 is opened on the top end surface of each of the two fixing blocks 2;

[0076] A driving block 24 is slidably connected in each of the two chutes 23; the driving blocks 24 are fixedly connected to the upper vertical plate 22;

[0077] A third screw 25 is rotatably connected in each of the two fixing blocks 2, and the third screw 25 passes through the chute 23 and through the driving block 24 in the chute 23, and is threadedly engaged with the driving block 24;

[0078] In this embodiment, on the outer rings of the two rotating shafts 35, uniformly arranged jacks 37 are formed on the vertical plate 22, and a plurality of jacks 37 enclose a circle;

[0079] A resisting rod 38 is slidably connected in each jack 37, and a part of one side of the resisting rod 38 facing the locking nut 36 extends out of the jack 37;

[0080] On one side of the locking nut 36 close to the resisting rod 38, a pushing plate 39 is fixedly connected to the outer peripheral surface of the locking nut 36. In the initial state, there is a gap between the pushing plate 39 and the vertical plate 22, and the resisting rod 38 is located in the gap between the pushing plate and the vertical plate 22;

[0081] Specifically, since fitness equipment is divided into various types, some fitness equipment is welded with U-shaped tubular components. For example, in a walking machine, the U-shaped tubular component on the walking machine is used as a handrail, and the U-shaped tubular component is welded to two different columns 13. If the welding point where the U-shaped tubular component is welded to one of the columns 13 is separated, and when the end position of the U-shaped tubular component after separation is misaligned with the welding point on the column 13, this welding device can still be used for welding;

[0082] First, the two arc-shaped limiting plates 34 on the welding positioning mechanism are sleeved from the end position of the U-shaped tubular component after separation, so that the separated end of the U-shaped tubular component passes through between the two arc-shaped limiting plates 34. Subsequently, the rotation angle of the limiting disc 3 is adjusted according to the inclination angle of the U-shaped tubular component. Then, the threaded cylinder 21 on the fixed block 2 is engaged with the threaded column 17 on the U-shaped ring 16. Then, the position of the end of the U-shaped tubular component after separation can be adjusted. If the position of the end of the U-shaped tubular component after separation is above or below the welding point of the column 13, at this time, rotate the first screw rod 14, and the first screw rod 14 will drive the U-shaped ring 16 to move upward or downward. At the same time, the U-shaped ring 16 will drive the entire welding positioning mechanism and the end position of the U-shaped tubular component to move upward or downward. When the end position of the U-shaped tubular component is pushed to the welding position by the welding positioning mechanism, welding can be carried out;

[0083] More specifically, if there is a certain distance between the position of the end of the U-shaped tubular component after separation and the welding position, at this time, rotate the third screw rod 25. When the third screw rod 25 rotates, it will push the driving block 24 to move towards the column 13, and at the same time, it will drive the vertical plate 22 and the limiting disc 3 to move. The moving limiting disc 3 will drive the end position of the U-shaped tubular component to approach the column 13 through the arc-shaped limiting plates 34. When the end position of the U-shaped tubular component fits with the column 13, welding can be carried out on the end position of the U-shaped pipe pile component at this time;

[0084] Further, since the insertion rod slides in the insertion hole 37 on the vertical plate 22, when the locking nut 36 is used to lock the limit disc 3, the locking nut 36 is rotated. The locking nut 36 will drive the push plate 39 to move and make the push plate 39 contact the abutting rod 38. When the push plate 39 contacts the abutting rod 38, it will push the abutting rod 38 to move and make the abutting rod 38 abut against the limit disc 3. During this process, not only can the locking nut 36 be used to limit and fix the limit disc 3, but also the abutting rod 38 can be used to abut against the limit disc 3 to limit and fix the limit disc 3, thereby further improving the fixing degree of the limit disc 3 and avoiding the situation of the limit disc 3 rotating;

[0085] Furthermore, when welding one end of the U-shaped tubular component, the U-shaped ring 16 and the welding positioning mechanism can be adjusted to drive the U-shaped tubular component to move up or down, so as to adjust the distance between the end of the U-shaped tubular component and the welding point. At the same time, by controlling the overall movement of the vertical plate 22 towards the column 13, the U-shaped tubular component can be driven to contact the welding point. During this process, it can be avoided that since one side of the U-shaped tubular component is fixed, when manually welding the misaligned and separated side of the U-shaped tubular component, it is necessary to always push the side of the U-shaped tubular component to be welded with force for positioning. During welding, it is still necessary to manually push the side of the U-shaped tubular component to be welded to contact the column 13, thereby avoiding the situation of misalignment between the end of the U-shaped tubular component to be welded and the column 13.

[0086] Embodiment 3:

[0087] Both of the arc-shaped limit plates 34 are composed of a left half plate 341 and a right half plate 342;

[0088] The end faces on the opposite sides of the left half plate 341 and the right half plate 342 are fixedly connected to the adjacent convex blocks 32;

[0089] In this embodiment, locking teeth 343 are provided on the inner circumferential surfaces of both of the arc-shaped limit plates 34;

[0090] In this embodiment, grooves 344 are provided on the end faces on the side of both of the left half plates 341 close to the right half plate 342;

[0091] Blocks 345 are fixedly connected to the end faces on the side of the right half plate 342 close to the left half plate 341. When the left half plate 341 and the right half plate 342 are attached, the blocks 345 will enter the grooves 344;

[0092] Specifically, since the limiting plate is composed of a left half plate 341 and a right half plate 342, after welding is completed, control the second screw 33 to rotate in the reverse direction. The second screw 33 will drive the convex block 32 to move away from each other in the convex groove 31, and at the same time will drive the arc-shaped limiting plates 34 to move away from each other, so that the tubular component is no longer clamped. Then rotate the threaded cylinder 21 in the reverse direction, and the threaded cylinder 21 will gradually be removed from the threaded post 17. When the threaded cylinder 21 is completely removed from the threaded post 17, at this time, control the two fixing blocks 2 to move away from each other, and at the same time the left half plate 341 and the right half plate 342 also move away from each other. After the left half plate 341 and the right half plate 342 move away from each other, the welding positioning mechanism can be removed from the tubular component;

[0093] More specifically, since locking teeth 343 are provided on the inner circumferential surface of the arc-shaped limiting plate 34, when the arc-shaped limiting plate 34 locks the tubular component, the locking degree of the tubular component can be improved. Since notches 344 and clamping blocks 345 that cooperate with each other are respectively provided on the left half plate 341 and the right half plate 342, before engaging the threaded cylinder 21 on the threaded post 17, first fit the left half plate 341 and the right half plate 342, and at the same time the clamping block 345 will snap into the notch 344. After the threaded cylinder 21 is engaged on the threaded post 17, due to the cooperation of the clamping block 345 and the notch 344, the left half plate 341 and the right half plate 342 can be made into a whole. When the limiting disk 3 rotates, the entire arc-shaped limiting plate 34 can be driven to rotate.

[0094] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the Figure 1 orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0095] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A sports equipment welding device, characterized in that: It comprises a locking mechanism; the locking mechanism comprises an arc block (1) and two locking rings (11); A locking ring (11) is rotatably connected to both sides of the arc block (1); a locking bolt (12) is threadedly engaged with the two locking rings (11) on one side away from the arc block (1), and the locking bolt (12) is used to lock the locking mechanism on the column (13) of the fitness equipment; A first screw rod (14) is rotatably mounted on the arc block (1), and the first screw rod (14) extends downward; reinforcing rods (15) are fixedly connected to the arc block (1) on both sides of the first screw rod (14), and the reinforcing rods (15) extend downward; A U-shaped ring (16) is provided below the locking mechanism; the first screw rod (14) passes through the U-shaped ring (16) and is threadedly engaged with the U-shaped ring (16); when the first screw rod (14) is rotated, the U-shaped ring (16) is driven to move up and down; The two reinforcing rods (15) pass through the U-shaped ring (16) and are slidably connected to the U-shaped ring (16); Threaded columns (17) are fixedly connected to both end surfaces of the U-shaped ring (16); welding positioning mechanisms are provided on both threaded columns (17), and the welding positioning mechanisms are used to perform positioning welding on the tubular component to be welded.

2. A sports equipment welding device according to claim 1, characterized in that: The two welding positioning mechanisms both comprise a fixing block (2); A threaded barrel (21) is rotatably mounted on one end surface of the two fixed blocks (2) close to the threaded column (17), and the threaded barrel (21) and the threaded column (17) are meshed with each other; A vertical plate (22) is installed on the top end surfaces of the two fixed blocks (2); and a limit plate (3) is installed on the end surfaces on the opposite side of the two vertical plates (22); The two limiting plates (3) are each provided with a convex groove (31) on the end surface on one side opposite to the other; and two convex blocks (32) are slidably connected in the two convex grooves (31); The two limit plates (3) are both rotatably connected with a second screw rod (33), and the second screw rod (33) passes through the convex groove (31). The second screw rod (33) uses the center line as a dividing line, and the threads on both sides of the dividing line are opposite. The second screw (33) passes through two convex blocks (32) in the convex groove (31), and the convex blocks (32) are located on both sides of the center line of the second screw (33) and are threadedly engaged with the second screw (33); Two arc-shaped limiting plates (34) are arranged above and below the two limiting plates (3), and the two arc-shaped limiting plates (34) correspond to each other and are arranged in a mirror image; The two arc-shaped limiting plates (34) are close to the two side end surfaces of the two limiting plates (3), and are both fitted with the adjacent limiting plates (3), and the convex blocks (32) in the convex grooves (31) are fixedly connected to the adjacent arc-shaped limiting plates (34).

3. A sports equipment welding device according to claim 2, characterized in that: The end surfaces of the two limiting plates (3) facing away from each other are both fixedly connected with a rotating shaft (35); The two rotating shafts (35) both pass through adjacent vertical plates (22) and partially extend to opposite sides of the two vertical plates (22); the rotating shafts (35) are rotatably connected to the vertical plates (22); The rotating shaft (35) is provided with threads on the surface of the side opposite to the vertical plate (22); a locking nut (36) is engaged with the threads on the side of the rotating shaft (35), and the locking nut (36) is used to lock the limiting plate (3).

4. A sports equipment welding device according to claim 3, characterized in that: As shown in FIG2 , the top end surfaces of the two fixing blocks (2) are both provided with sliding grooves (23); The two slide grooves (23) are both slidably connected with a driving block (24); the driving blocks (24) are both fixedly connected to the upper vertical plate (22); The two fixed blocks (2) are both rotatably connected with a third screw rod (25), and the third screw rod (25) passes through the slide groove (23), passes through the drive block (24) in the slide groove (23), and is threadedly engaged with the drive block (24).

5. A sports equipment welding device according to claim 4, characterized in that: The outer rings of the two rotating shafts (35) are provided with evenly arranged plug holes (37) on the vertical plate (22), and the multiple plug holes (37) form a circle; A push rod (38) is slidably connected in each of the insertion holes (37), and a portion of the push rod (38) protrudes out of the insertion hole (37) toward one side of the locking nut (36); A push plate (39) is fixedly connected to the outer ring surface of the locking nut (36) on one side of the locking nut (36) close to the push rod (38); in an initial state, there is a gap between the push plate (39) and the vertical plate (22), and the push rod (38) is located in the gap between the push plate and the vertical plate (22).

6. A sports equipment welding device according to claim 5, characterized in that: The two arc-shaped limiting plates (34) each comprise a left half plate (341) and a right half plate (342); The end surfaces of the left half plate (341) and the right half plate (342) facing away from each other are both fixedly connected to adjacent convex blocks (32).

7. A sports equipment welding device according to claim 6, characterized in that: Locking teeth (343) are provided on the inner circumferential surfaces of the two arc-shaped limiting plates (34).

8. A sports equipment welding device according to claim 7, characterized in that: The end surfaces of the two left half plates (341) close to the right half plate (342) are both provided with a notch (344); A clamping block (345) is fixedly connected to the end surface of one side of the right half plate (342) close to the left half plate (341). When the left half plate (341) and the right half plate (342) are fitted together, the clamping block (345) will enter the notch (344).

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