A corrugated pipe stop valve corrugated pipe and valve seat welding auxiliary positioning device

Abstract

The utility model relates to a corrugated pipe stop valve corrugated pipe and valve seat welding auxiliary positioning device, including the bottom plate, the bottom plate front side center fixedly connected with first connecting plate, the bottom plate top near the corner all fixedly connected with the bar, the bottom plate top fixedly connected with drive cylinder, drive cylinder power output shaft fixedly connected with linkage plate, through the mutual cooperation between parts limiting plate, bar, drive cylinder, lifting plate, linkage plate, L type support plate, placing plate, welding block etc.

Description

Technical Field

[0001] This utility model relates to the field of gate valve processing technology, and in particular to an auxiliary positioning device for welding the bellows and valve seat of a bellows gate valve. Background Technology

[0002] The most critical and technically demanding welding process in the manufacturing of bellows gate valves requires a circumferential sealing weld between the outer edge of the lower base of the bellows assembly and the inner edge or end face of the valve seat on the valve body. This ensures that the medium in the pipeline is 100% enclosed within the cavity formed by the valve body, bellows, and valve seat, with no leakage path.

[0003] However, if the bellows assembly and the valve seat are not concentric, it will cause uneven wall thickness on both sides of the weld. One side will have excessive penetration or even burn through, while the other side will not be fully penetrated, forming a leakage channel. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary positioning device for welding the bellows and valve seat of a bellows gate valve, so as to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is an auxiliary positioning device for welding the bellows and valve seat of a bellows gate valve, including a base plate. A first connecting plate is fixedly connected to the center of the front side of the base plate. Strip rods are fixedly connected to the top of the base plate near the four corners. A drive cylinder is fixedly connected to the top of the base plate. A linkage plate is fixedly connected to the power output shaft of the drive cylinder. Lifting plates are fixedly connected to the front and rear sides of the linkage plate. Limiting plates are fixedly connected to the opposite sides of the two lifting plates. The left and right sides of the limiting plates are in contact with the adjacent strip rods. A gate valve is provided on the top of the base plate, and a bellows is attached to the inner cavity of the gate valve.

[0006] In one embodiment, positioning shafts are inserted into both the left and right sides of the shut-off valve, and sliders are fixedly connected to the opposite ends of the two positioning shafts. A rectangular plate is slidably connected to the bottom of the slider, and movable plates are hinged to both the front and rear sides of the slider. The bottom of the movable plates is hinged to the lifting plate, and an L-shaped support plate is fixedly connected to the bottom of the rectangular plate. The other side of the L-shaped support plate is fixedly connected to the base plate.

[0007] In one embodiment, a trigger is fixedly connected to the top of the first connecting plate near the front side, a second connecting plate is fixedly connected to the limiting plate located on the front side, a vertical plate is fixedly connected to the top of the second connecting plate near the front side, and a top plate is fixedly connected to the top of the vertical plate.

[0008] In one embodiment, a push cylinder is fixedly connected to the top of the top plate, a push plate is provided on the rear side of the push cylinder, the power output shaft of the push cylinder is fixedly connected to the push plate, and two inclined slots are opened on the top of the push plate, which are arranged symmetrically on the left and right.

[0009] In one embodiment, two opposing plates are provided on the rear side of the push plate. The two opposing plates are arranged symmetrically from left to right. A fitting rod is fixedly connected to the inner cavity of the opposing plate near the front side. The fitting rod fits into the inclined groove. Welding blocks are fixedly connected to both sides of the top plate. Placement plates are fixedly connected to the top of the two welding blocks. The opposing plates are hinged to the placement plates.

[0010] In one embodiment, each of the two opposing plates is hinged to an annular clamp on one side, and each of the two annular clamps has an annular groove on its top. Each of the two annular clamps is in contact with the outside of the shut-off valve on one side.

[0011] In one embodiment, a top cylinder is provided at the top of the shut-off valve, and a rotating plate is fixedly connected to the power output shaft of the top cylinder. A slot is opened at the top of the rotating plate, and a moving block is slidably connected to the slot. A return spring is fixedly connected to the rear side of the moving block, and the other end of the return spring is fixedly connected to the slot. A moving rod is fixedly connected to the bottom of the moving block, and the bottom end of the moving rod fits into the annular groove. A welding machine is installed on the outside of the moving rod.

[0012] The beneficial effects provided by this utility model are: 1. Through the cooperation of components such as the limiting plate, bar rod, drive cylinder, lifting plate, linkage plate, L-shaped support plate, placement plate, and welding block, the two positioning shafts can be moved in opposite directions when the drive cylinder is started and inserted into the gate valve to prevent the gate valve from shifting during welding and to achieve positioning. Through the cooperation of components such as the rotating plate, return spring, moving block, moving rod, welding machine, top cylinder, annular clamping plate, slider, and rectangular plate, the connection part of the gate valve can be welded to the bellows, realizing automated welding. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the base plate structure of this utility model; Figure 3 This is a schematic diagram of the structure of the cylinder that drives this utility model; Figure 4 This is a schematic diagram of the gate valve structure of this utility model; Figure 5 This is a plan view of the base plate structure of this utility model; Figure 6This is a schematic diagram of the top cylinder structure of this utility model.

[0014] In the attached diagram: 1. Base plate; 2. First connecting plate; 3. Trigger; 4. Second connecting plate; 5. Vertical plate; 6. Top plate; 7. Rectangular plate; 8. Slider; 9. Annular clamping plate; 10. Top cylinder; 11. Opposing plate; 12. Return spring; 13. Moving block; 14. Moving rod; 15. Welding machine; 16. Bellows; 17. Shut-off valve; 18. Push plate; 19. Push cylinder; 20. Positioning shaft; 21. Movable plate; 22. Limiting plate; 23. Strip rod; 24. Drive cylinder; 25. Lifting plate; 26. Linkage plate; 27. L-shaped support plate; 28. Placement plate; 29. ​​Welding block; 30. Rotating plate. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0016] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation 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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0017] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, A bellows gate valve bellows and valve seat welding auxiliary positioning device includes a base plate 1. A first connecting plate 2 is fixedly connected to the center of the front side of the base plate 1. Strip rods 23 are fixedly connected to the top of the base plate 1 near the four corners. A drive cylinder 24 is fixedly connected to the top of the base plate 1. A linkage plate 26 is fixedly connected to the power output shaft of the drive cylinder 24. Lifting plates 25 are fixedly connected to both the front and rear sides of the linkage plate 26. Limiting plates 22 are fixedly connected to the opposite sides of the two lifting plates 25. The left and right sides of the limiting plates 22 are connected to adjacent... The strip rod 23 is attached, and a stop valve 17 is set on the top of the base plate 1. A bellows 16 is attached to the inner cavity of the stop valve 17. Positioning shafts 20 are inserted into both the left and right sides of the stop valve 17. A slider 8 is fixedly connected to one end of each of the two positioning shafts 20 that are opposite to each other. A rectangular plate 7 is slidably connected to the bottom of the slider 8. Movable plates 21 are hinged to both the front and rear sides of the slider 8. The bottom of the movable plates 21 is hinged to the lifting plate 25. An L-shaped support plate 27 is fixedly connected to the bottom of the rectangular plate 7. The other side of the L-shaped support plate 27 is fixedly connected to the base plate 1.

[0018] A trigger 3 is fixedly connected to the top of the first connecting plate 2 near the front side. A second connecting plate 4 is fixedly connected to the limit plate 22 located at the front side. A vertical plate 5 is fixedly connected to the top of the second connecting plate 4 near the front side. A top plate 6 is fixedly connected to the top of the vertical plate 5. A push cylinder 19 is fixedly connected to the top of the top plate 6. A push plate 18 is provided behind the push cylinder 19. The power output shaft of the push cylinder 19 is fixedly connected to the push plate 18. Two inclined slots are opened on the top of the push plate 18. The two inclined slots are arranged symmetrically on the left and right. Two opposing plates 11 are provided behind the push plate 18. The two opposing plates 11 are arranged symmetrically on the left and right. A fitting rod is fixedly connected to the inner cavity of the opposing plate 11 near the front side. The fitting rod fits into the inclined slot. Welding blocks 29 are fixedly connected to both sides of the top plate 6. Placement plates 28 are fixedly connected to the top of the two welding blocks 29. Hinged on the placement plate 28, each of the two opposing plates 11 has an annular clamping plate 9 hinged to one side. The top of each of the two annular clamping plates 9 has an annular groove. The corresponding side of each of the two annular clamping plates 9 is in contact with the outside of the shut-off valve 17. A top cylinder 10 is provided on the top of the shut-off valve 17. A rotating plate 30 is fixedly connected to the power output shaft of the top cylinder 10. A slot is provided on the top of the rotating plate 30. A moving block 13 is slidably connected to the slot. A return spring 12 is fixedly connected to the rear side of the moving block 13. The other end of the return spring 12 is fixedly connected to the slot. A moving rod 14 is fixedly connected to the bottom of the moving block 13. The bottom end of the moving rod 14 is in contact with the annular groove. A welding machine 15 is installed on the outside of the moving rod 14. An L-shaped mounting rod is fixedly connected to the front side of the top cylinder 10. The other side of the L-shaped mounting rod is fixedly connected to the push cylinder 19.

[0019] Working principle: First, the operator places the shut-off valve 17 between the two sliders 8 and starts the drive cylinder 24 to move the linkage plate 26 downward. When the linkage plate 26 moves, it can be in contact with the bar rod 23 through the limit plate 22, which can limit the movement trajectory. When the linkage plate 26 moves, it can drive the two lifting plates 25 to move synchronously. When the lifting plates 25 move downward, they can drive the two sliders 8 to move in opposite directions through the movable plate 21. When the sliders 8 move in opposite directions, they can drive the positioning shaft 20 to be inserted into the shut-off valve 17, achieving initial fixation. When the limit plate 22 on the front side moves downward, it can drive the second connecting plate 4 to move downward. When the second connecting plate 4 moves, it can contact the trigger 3. At the same time, when the limit plate 22 on the front side moves downward, it can drive the push air through the vertical plate 5 and the top plate 6. Cylinder 19 moves downward, causing the two annular clamping plates 9 to move to the outside of the shut-off valve 17. When the push cylinder 19 is activated, it can drive the push plate 18 to move backward. When the push plate 18 moves, it can fit with the fitting rod through the inclined groove, thereby driving the two opposing plates 11 to swing in opposite directions. When the opposing plates 11 swing, they can drive the two annular clamping plates 9 to swing in opposite directions. The annular clamping plates 9 can move and fit with the outside of the shut-off valve 17, completing the secondary fixation. At this time, the annular grooves at the top of the two annular clamping plates 9 are merged. Trigger 3 activates the top cylinder 10 to drive the rotating plate 30 to rotate. When the rotating plate 30 rotates, it can drive the moving block 13 to rotate along the annular groove. When the moving block 13 rotates, it can drive the welding machine 15 to move through the moving rod 14, thereby welding the connection part of the shut-off valve 17 to the bellows 16, realizing automated welding.

[0020] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0021] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An auxiliary positioning device for welding the bellows and valve seat of a bellows gate valve, characterized in that, The system includes a base plate (1), a first connecting plate (2) fixedly connected to the center of the front side of the base plate (1), strip rods (23) fixedly connected to the top of the base plate (1) near the four corners, a drive cylinder (24) fixedly connected to the top of the base plate (1), a linkage plate (26) fixedly connected to the power output shaft of the drive cylinder (24), lifting plates (25) fixedly connected to the front and rear sides of the linkage plate (26), a limit plate (22) fixedly connected to the opposite side of the two lifting plates (25), the limit plate (22) is attached to the adjacent strip rods (23) on both the left and right sides, a stop valve (17) is provided on the top of the base plate (1), and a bellows (16) is attached to the inner cavity of the stop valve (17).

2. The bellows-to-seat welding auxiliary positioning device for a bellows-type gate valve according to claim 1, characterized in that, The shut-off valve (17) has positioning shafts (20) inserted on both the left and right sides. The two positioning shafts (20) are fixedly connected to sliders (8) at opposite ends. A rectangular plate (7) is slidably connected to the bottom of the slider (8). Movable plates (21) are hinged to both the front and rear sides of the slider (8). The bottom of the movable plate (21) is hinged to the lifting plate (25). An L-shaped support plate (27) is fixedly connected to the bottom of the rectangular plate (7). The other side of the L-shaped support plate (27) is fixedly connected to the base plate (1).

3. The bellows-to-seat welding auxiliary positioning device for a bellows-type gate valve according to claim 2, characterized in that, A trigger (3) is fixedly connected to the top of the first connecting plate (2) near the front side. The limiting plate (22) located on the front side is fixedly connected to the second connecting plate (4). A vertical plate (5) is fixedly connected to the top of the second connecting plate (4) near the front side. A top plate (6) is fixedly connected to the top of the vertical plate (5).

4. The bellows-to-seat welding auxiliary positioning device for a bellows-type gate valve according to claim 3, characterized in that, A push cylinder (19) is fixedly connected to the top of the top plate (6). A push plate (18) is provided on the rear side of the push cylinder (19). The power output shaft of the push cylinder (19) is fixedly connected to the push plate (18). Two inclined slots are opened on the top of the push plate (18). The two inclined slots are arranged symmetrically on the left and right.

5. The bellows-to-seat welding auxiliary positioning device for a bellows-type gate valve according to claim 4, characterized in that, Two opposing plates (11) are provided on the rear side of the push plate (18). The two opposing plates (11) are arranged symmetrically on the left and right. A fitting rod is fixedly connected to the inner cavity of the opposing plate (11) near the front side. The fitting rod fits into the inclined groove. Welding blocks (29) are fixedly connected to both sides of the top plate (6). Placement plates (28) are fixedly connected to the top of the two welding blocks (29). The opposing plates (11) are hinged to the placement plates (28).

6. The bellows-to-seat welding auxiliary positioning device for a bellows gate valve according to claim 5, characterized in that, Both of the opposing plates (11) have annular clamps (9) hinged to their respective sides. Both of the annular clamps (9) have annular grooves on their tops. Both of the annular clamps (9) have their respective sides in contact with the outside of the shut-off valve (17).

7. The bellows-to-seat welding auxiliary positioning device for a bellows-type gate valve according to claim 6, characterized in that, The top of the shut-off valve (17) is provided with a top cylinder (10). The power output shaft of the top cylinder (10) is fixedly connected to a rotating plate (30). The top of the rotating plate (30) is provided with a slot. The slot is slidably connected to a moving block (13). The rear side of the moving block (13) is fixedly connected to a return spring (12). The other end of the return spring (12) is fixedly connected to the slot. The bottom of the moving block (13) is fixedly connected to a moving rod (14). The bottom end of the moving rod (14) fits against the annular groove. A welding machine (15) is installed on the outside of the moving rod (14).

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