Self-resetting copper gasket

Abstract

The utility model discloses a self-resetting copper gasket, which relates to the technical field of pipeline transportation construction and comprises a copper gasket block, a lifting mechanism and a resetting mechanism, the resetting mechanism is arranged at the lower end of the lifting mechanism, and the lifting mechanism is arranged at the lower end of the copper gasket block; the reset mechanism comprises a torsion spring, a shaft sleeve and a plug screw, the plug screw is connected with the shaft sleeve, a bottom plate is arranged outside the shaft sleeve, the torsion spring is arranged between the bottom plate and the shaft sleeve, one end of the torsion spring is connected with the bottom plate, and the other end of the torsion spring is connected with the lifting mechanism. According to the self-resetting copper gasket with the structure, the torsion spring can rotate by a certain angle when the copper gasket descends and is subjected to mutual extrusion and friction, so that a spatial descending position is formed; and when the copper gasket rises, the copper gasket can automatically reset under the elastic force of the torsion spring, so that a good gasket effect is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline transportation construction, in particular to a self-resetting copper gasket. Background Art

[0002] In the field of pipeline transportation construction, the most commonly used processes at present include beveling, butt joint and welding, etc. Among them, pipeline butt joint is the prerequisite and necessary condition for pipeline welding. After the pipeline is butted, whether it is manual welding or machine automatic welding, there is a problem of overflow of weld bead melt. To solve this problem, the copper gasket device on the butt joint machine came into being. The copper gasket is made of special copper material and can fit the inner wall of the pipeline inside the pipeline. During butt joint welding, it can prevent the melt from dripping and overflowing inside the pipeline, thus affecting the welding quality of the weld bead. For the reset technology of the copper gasket, at present, it is generally achieved by simply relying on the mechanical extrusion friction between the copper gaskets, and there are problems of inflexible reset and sometimes jamming. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a self-resetting copper gasket to solve the problem of inflexible reset of the copper gasket in the prior art.

[0004] To achieve the above purpose, the utility model provides a self-resetting copper gasket, which includes a copper gasket block, a lifting mechanism and a reset mechanism. The reset mechanism is arranged at the lower end of the lifting mechanism, and the lifting mechanism is arranged at the lower end of the copper gasket block;

[0005] The reset mechanism includes a torsion spring, a bushing and a set screw. The set screw is connected with the bushing. A bottom plate is arranged outside the bushing, and the torsion spring is arranged between the bottom plate and the bushing. One end of the torsion spring is connected with the bottom plate, and the other end of the torsion spring is connected with the lifting mechanism.

[0006] Preferably, the lifting mechanism includes a middle bracket, a limit block, a compression spring and a connecting plate. Connecting holes are arranged at the lower end of the connecting plate and the upper end of the middle bracket, and the connecting holes are connected with the compression spring. Multiple groups of compression springs are arranged. Bolt holes are arranged on the side end of the middle bracket, and the bolt holes are connected with screw one. Screw one passes through the limit block and is connected with the middle bracket.

[0007] Preferably, fixing holes are arranged on the middle bracket, and the fixing holes are connected with the torsion spring. Fixing platforms are arranged at the left and right ends of the middle bracket.

[0008] Preferably, the middle bracket and the connecting plate are both connected with the set screw. The top end of the set screw is connected with a thin nut. The thin nut is arranged in the through hole of the connecting plate. The connecting plate and the copper gasket block are connected by screw two. Convex platforms are arranged at the left and right ends of the connecting plate.

[0009] Preferably, a second bolt hole is provided on the limiting block for connection with the first screw. A first limiting strip is provided at the upper end of the limiting block and is connected to the boss. A second limiting strip is provided at the lower end of the limiting block and is connected to the fixed table.

[0010] Preferably, the lower end of the dowel screw is connected to the spacer sleeve. The spacer sleeve is connected to the dowel screw through a third screw. A thread is provided at the top of the dowel screw.

[0011] Preferably, an avoidance hole is provided in the middle of the copper lining pad.

[0012] Therefore, the self-resetting copper lining pad of the present utility model having the above structure has the following beneficial effects:

[0013] (1) Through the setting of the torsion spring, the copper lining pad can be self-reset, with flexible reset and avoiding jamming.

[0014] (2) Through the setting of the compression spring and the limiting block, the copper lining pad can achieve up-and-down floating and be timely reset through the limiting function of the limiting block.

[0015] (3) When the torsion spring is squeezed and rubbed against each other during the descent of the copper lining pad, it can rotate a certain angle to have space for the descent position. When the copper lining pad rises, under the elastic force of the torsion spring, the copper lining pad will automatically reset to achieve a good lining effect.

[0016] The technical solution of the present utility model will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0017] Figure 1 It is a schematic structural view of an embodiment of the self-resetting copper lining pad of the present utility model;

[0018] Figure 2 It is an exploded view of the structure of the self-resetting copper lining pad of the present utility model;

[0019] Figure 3 It is a sectional view of the self-resetting copper lining pad of the present utility model;

[0020] Figure 4 It is a schematic structural view of the middle bracket of the self-resetting copper lining pad of the present utility model;

[0021] Figure 5 It is a schematic structural view of the limiting block of the self-resetting copper lining pad of the present utility model;

[0022] Reference Signs

[0023] 1. Base plate; 2. Screw 1; 3. Limit block; 4. Middle bracket; 5. Compression spring; 6. Screw 2; 7. Thin nut; 8. Copper lining pad; 9. Connecting plate; 10. Bush; 11. Torsion spring; 12. Screw 3; 13. Set screw; 14. Sleeve; 15. Fixed hole; 16. Connecting hole; 17. Bolt hole; 18. Fixed platform; 19. Bolt hole 2; 20. Limit bar 1; 21. Limit bar 2. Detailed implementation manner

[0024] The technical solution of the present utility model will be further described below with reference to the drawings and embodiments.

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present utility model shall have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model belongs. The "first", "second" and similar words used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The words such as "including" or "comprising" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "upper", "lower", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0026] Embodiment

[0027] Please refer to Figures 1-5 , the present utility model provides a self-resetting copper lining pad, including a copper lining pad 8, a lifting mechanism and a resetting mechanism. The resetting mechanism is arranged at the lower end of the lifting mechanism, and the lifting mechanism is arranged at the lower end of the copper lining pad 8. The copper lining pad 8 can float up and down and rotate around an axis, and can be reset.

[0028] The resetting mechanism includes a torsion spring 11, a bush 10 and a set screw 13. The set screw 13 is connected to the bush 10. Through the arrangement of the bush 10, the copper lining can rotate around the set screw 13. A base plate 1 is arranged outside the bush 10, a circular ring is arranged on the bush 10, the torsion spring 11 is arranged below the circular ring, there is an interference fit between the base plate 1 and the bush 10, a torsion spring 11 is arranged between the base plate 1 and the bush 10, and the arrangement of the torsion spring 11 can enable the copper lining rotated by a certain angle to be reset in time after the external force is removed. One end of the torsion spring 11 is connected to the base plate 1, and the other end of the torsion spring 11 is connected to the lifting mechanism.

[0029] The lifting mechanism includes a middle support 4, a limit block 3, a compression spring 5, and a connecting plate 9. Connecting holes 16 are provided at the lower end of the connecting plate 9 and the upper end of the middle support 4. The connecting holes 16 are connected to the compression spring 5. Multiple groups of compression springs 5 are provided. The up and down floating of the copper gasket can be realized through the setting of the compression spring 5.

[0030] A bolt hole 17 is provided on the side end of the middle support 4. The bolt hole 17 is connected to a first screw 2. The first screw 2 passes through the limit block 3 and is connected to the middle support 4. A fixing hole 15 is provided on the middle support 4. The fixing hole 15 is connected to a torsion spring 11. The fixing hole 15 is used to fix the spring feet of the torsion spring 11, facilitating the action of the torsion spring 11. The fixing holes 15 are provided on the periphery of the hole through which the dowel screw 13 passes on the middle support 4. Multiple fixing holes 15 are provided. Due to the uncertain spring angle, fixing platforms 18 are provided at both the left and right ends of the middle support 4. The fixing platforms 18 are connected to the limit block 3.

[0031] Both the middle support 4 and the connecting plate 9 are connected to the dowel screw 13. The dowel screw 13 passes through the middle support 4 and the connecting plate 9. The top of the dowel screw 13 is connected to a thin nut 7. A through hole is provided at the upper end of the connecting plate 9. Bolt holes one are provided at both ends of the through hole. The thin nut 7 is arranged in the through hole of the connecting plate 9 and is connected to the dowel screw 13. The connecting plate 9 and the copper gasket block 8 are connected by a second screw 6. The second screw 6 passes through the bolt hole two 19 and is connected to the copper gasket block 8 for fixing the copper gasket block 8. Protrusions are provided at both the left and right ends of the connecting plate 9. The protrusions are connected to the limit block 3.

[0032] A bolt hole two 19 is provided on the limit block 3 and is connected to the first screw 2. The limit block 3 is connected to the middle support 4 through the first screw 2 for fixing it. The function of the limit block 3 is to limit the up and down floating of the copper gasket block 8. A first limit strip 20 is provided at the upper end of the limit block 3. The first limit strip 20 is connected to the protrusion. The first limit strip 20 is arranged to be connected to the protrusion to prevent the copper gasket block 8 from floating too much. The widths of the copper gasket block 8 and the connecting plate 9 are both smaller than the distance between the two limit blocks 3. This setting facilitates the up and down movement of the copper gasket block 8. A second limit strip 21 is provided at the lower end of the limit block 3. The second limit strip 21 is connected to the fixing platform 18. The second limit strip 21 fits with the fixing platform 18. The setting of the second limit strip 21 prevents the copper gasket block 8 from descending too much and affecting the reset process of the copper gasket block 8.

[0033] The lower end of the dowel screw 13 is connected to a spacer 14. The spacer 14 is connected to the dowel screw 13 through a third screw 12. The function of the spacer 14 is provided. The spacer 14 is a two-piece structure and is fixed through the third screw 12. Threads are provided at the top of the dowel screw 13 for facilitating the connection with the thin nut 7.

[0034] A relief hole is provided in the middle of the copper lining spacer block 8, and the relief hole corresponds to the through hole at the upper end of the connecting plate 9. The functions of the relief hole are, firstly, to avoid the thin nut 7 below, and secondly, to reduce the weight of the copper lining spacer block 8. Open holes are provided on the copper lining spacer block 8 and are connected to the second screw 6.

[0035] During specific use, when the copper lining spacer block 8 descends, the extrusion friction between the copper lining spacer blocks 8 overcomes the elastic force of the torsion spring 11 and rotates a certain angle, so that the copper lining spacer blocks 8 are arranged in a smaller diameter space. When the copper lining spacer block 8 ascends, the gap between the copper lining spacer blocks 8 becomes larger. Under the elastic force of the torsion spring 11, the copper lining spacer block 8 resets, always keeping the pads in contact with each other without gaps, so as to achieve the expected function of the copper gasket.

[0036] Therefore, the self-resetting copper gasket of the present utility model adopts the above structure. Through the setting of the torsion spring, the copper lining spacer block can self-reset, with flexible resetting and avoiding jamming. Through the setting of the compression spring and the limit block, the copper lining spacer block can achieve up and down floating, and through the limiting function of the limit block, it can reset in time. When the copper gasket descends and is subjected to mutual extrusion friction, the torsion spring can rotate a certain angle so as to have space for the descending position. When the copper gasket rises, under the elastic force of the torsion spring, the copper gasket will automatically reset to achieve a good gasket effect.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.

Claims

1. Self-resetting copper liner, characterized in that: It comprises a copper liner block, a lifting mechanism and a reset mechanism, wherein the reset mechanism is arranged at the lower end of the lifting mechanism, and the lifting mechanism is arranged at the lower end of the copper liner block; The reset mechanism includes a torsion spring, a sleeve and a driving screw, the driving screw is connected to the sleeve, a bottom plate is arranged outside the sleeve, the torsion spring is arranged between the bottom plate and the sleeve, one end of the torsion spring is connected to the bottom plate, and the other end of the torsion spring is connected to the lifting mechanism.

2. The self-resetting copper liner according to claim 1, characterized in that: The lifting mechanism includes a middle bracket, a limit block, a compression spring and a connecting plate. The lower end of the connecting plate and the upper end of the middle bracket are both provided with connecting holes, the connecting holes are connected to the compression springs, and the compression springs are provided in multiple groups. A bolt hole is provided on the side end of the middle bracket, the bolt hole is connected to screw one, and the screw one passes through the limit block and is connected to the middle bracket.

3. The self-resetting copper liner according to claim 2, characterized in that: The middle bracket is provided with a fixing hole, the fixing hole is connected to the torsion spring, and both left and right ends of the middle bracket are provided with fixing platforms.

4. The self-resetting copper liner according to claim 3, characterized in that: The middle bracket and the connecting plate are both connected to the plug screw, the top end of the plug screw is connected to a thin nut, the thin nut is arranged in the through hole of the connecting plate, the connecting plate is connected to the copper pad block by screw 2, and bosses are arranged on both ends of the left and right sides of the connecting plate.

5. The self-resetting copper liner according to claim 4, characterized in that: The limit block is provided with a second bolt hole connected with the first screw, the upper end of the limit block is provided with a first limit strip connected with the boss, the lower end of the limit block is provided with a second limit strip connected with the fixing platform.

6. The self-resetting copper liner according to claim 5, characterized in that: The lower end of the plug screw is connected to the spacer sleeve, and the spacer sleeve is connected to the plug screw through screw three. The top of the plug screw is provided with a thread.

7. The self-resetting copper liner according to claim 6, characterized in that: A avoidance hole is arranged in the middle of the copper liner block.

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