Pressurizing device for forming saddle type branch pipe

Abstract

The utility model discloses a pressurizing device for saddle type branch pipe forming, and relates to the technical field of saddle type branch pipe machining. The device comprises a base, a positioning sleeve, two lining assemblies and two outer abutting pieces, a top plate is fixed to the upper end of the base through a supporting column, a sliding rail is fixed to the upper end of the base, and two sliding blocks are connected to the upper end of the sliding rail in a sliding mode; the two lining assemblies can be used for fixing the interiors of saddle type branch pipes with different inner diameters in a matched mode, the adaptability of the device is improved, the two lining assemblies are placed in the visual horizontal end and the visual vertical end respectively in the using process, then the small air pump is matched with the electromagnetic three-way valve to inject air into the side telescopic air bag, and the air injection efficiency is improved. At the moment, the telescopic end of the side telescopic air bag expands to drive the two external expansion sleeve pieces to expand outwards until the arc-shaped linings on the outer surfaces of the two external expansion sleeve pieces abut against the interior of the saddle type branch pipe, and fixing is completed.

Description

Technical Field

[0001] This utility model belongs to the field of saddle branch pipe processing, specifically, it relates to a pressure device for forming saddle branch pipes. Background Technology

[0002] Pipeline production often requires branching, and branched pipelines are called branch pipes. Saddle branch pipes, such as tees, are formed by processing straight pipes. Generally, the pipe material is first cut and high-temperature shaped according to design requirements to complete the components. Then, these components are connected together by welding to form a complete saddle branch pipe.

[0003] Currently, in order to ensure the strength and sealing of the branch pipe during the welding process, it is necessary to apply appropriate pressure to the welded part to eliminate welding defects and improve the performance of the welded joint. Existing technologies mostly use abutment components to pressurize the pipe by pressing against the inside and outside of the pipe.

[0004] Due to the different application scenarios of the pipelines, the inner diameter of the pipelines varies. In order to ensure the pressurization effect, the inner contact parts need to be replaced frequently, which is a rather cumbersome process. Therefore, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a pressurizing device for forming saddle-type branch pipes.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A pressurizing device for forming a saddle branch pipe includes a base, a positioning sleeve, two inner liner components, and two outer abutments. The upper end of the base is fixed with a top plate by a support column. A slide rail is fixed at the upper end of the base, and two sliders are slidably connected to the upper end of the slide rail. The upper end of each slider is fixed with a positioning sleeve for fixing the saddle branch pipe. Two inner liner components are inserted into the inside of the saddle branch pipe. The upper ends of the saddle branch pipe are abutted by outer abutments for pressurizing. The contact surface between the outer abutments and the saddle branch pipe has a fitting groove that matches the curvature of the saddle branch pipe surface.

[0008] Both of the inner liner assemblies include a housing, an expansion kit, a side telescopic airbag, a retaining strip, and an arc-shaped inner liner. The side telescopic airbag is fixed inside the housing. The telescopic ends of the side telescopic airbag are fixed to the expansion kit on both sides. The expansion kit is movably connected to the side wall of the housing. The surfaces of both expansion kits are fixed with retaining strips for the arc-shaped inner liner to be engaged. The side end of the side telescopic airbag passes through the housing through a conduit and is connected to the air injection end of the electromagnetic three-way valve.

[0009] The air inlet ends of the two electromagnetic three-way valves are connected to the three-way pipe inside the base through pipes. The air inlet end of the three-way pipe is connected to the air injection end of the small air pump. The negative pressure end of the small air pump is connected to a filter pipe. The end of the filter pipe passes through the cover plate at the front end of the base, and a dustproof net is installed in the middle of the end of the filter pipe.

[0010] Optionally, each slider has a locating bolt threaded to its front end, and the back of the locating bolt is fixed to the front end of the slide rail.

[0011] Optionally, the upper ends of both positioning sleeves are threaded with fixing bolts, the bottom ends of the fixing bolts are fixed to the pressure block by bearings, and a rubber pad is fixed in the middle of the pressure block. A ball bearing is installed inside the lower end of the positioning sleeve.

[0012] Optionally, each of the four support columns is fixed with a sleeve block, with two sleeve blocks on each side fixed to the same support strip, and the upper end of each support strip is fixed to the telescopic end of the electric push rod by a corner bracket, the electric push rod being fixed to the upper end of the top plate.

[0013] Optionally, each of the two support strips has a mounting shell fixed to its wedge-shaped surface. Each mounting shell has an electric telescopic rod fixed inside, and the telescopic end of the electric telescopic rod passes through the side end of the mounting shell and is fixed to the outer contact member by screws. Each of the outer contact members has an anti-slip pad fixed to its outer surface.

[0014] Optionally, the outer contact member is symmetrically fixed with a guide rod on the opposite side of the mounting shell, and the guide rod penetrates the interior of the mounting shell.

[0015] Optionally, each of the arcuate liners has a slot on its side surface that matches the outer contour of the card strip.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] 1. This utility model can be adapted to fix the inside of saddle branch pipes with different inner diameters by using two inner lining components, which increases the adaptability of the device. When in use, the two inner lining components are placed inside the horizontal end and the vertical end of the saddle branch pipe respectively. Then, a small air pump is used in conjunction with an electromagnetic three-way valve to inflate the inside of the side telescopic airbag. At this time, the telescopic end of the side telescopic airbag expands, which drives the two outward expansion kits to expand outward until the arc-shaped inner lining on the outer surface of the two outward expansion kits comes into contact with the inside of the saddle branch pipe to complete the fixation.

[0018] 2. This utility model takes into account that the arc-shaped inner liner needs to contact the inner surface of the saddle branch pipe when the inner liner assembly is fixed. Therefore, the surface of the arc-shaped inner liner needs to be in close contact with the inner surface of the saddle branch pipe. Thus, the arc-shaped inner liner and the outer expansion kit are connected by a snap-fit ​​method, which facilitates replacement as needed in the future.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0021] In the picture:

[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the combined structure of the positioning sleeve, fixing bolt, and slider in this utility model;

[0024] Figure 3 This is a schematic diagram of the combined parts structure of the inner liner assembly in this utility model;

[0025] Figure 4 for Figure 1 A schematic diagram of the structure of part A in the diagram;

[0026] Figure 5 for Figure 3 Schematic diagram of part B in the diagram;

[0027] Figure 6 This is a schematic diagram of the appearance of the arc-shaped inner lining of the two inner lining components in this utility model;

[0028] Figure 7 This is a schematic diagram of the external component structure of the external contact part in this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Base; 2. Support column; 3. Top plate; 4. Slide rail; 5. Slider; 6. Positioning sleeve; 7. Outer contact piece; 8. Housing; 9. Side telescopic airbag; 10. Outer expansion kit; 11. Arc-shaped inner liner; 12. Locking strip; 13. Conduit; 14. Solenoid three-way valve; 15. Three-way pipe; 16. Small air pump; 17. Filter pipe; 18. Cover plate; 19. Dustproof net; 20. Positioning bolt; 21. Fixing bolt; 22. Pressure block; 23. Rubber pad; 24. Ball bearing; 25. Sleeve block; 26. Support strip; 27. Electric push rod; 28. Mounting shell; 29. ​​Electric telescopic rod; 30. Anti-slip pad; 31. Guide rod.

[0031] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] Please see Figures 1 to 7 This utility model provides a technical solution: a pressure device for forming a saddle branch pipe, including a base 1, a positioning sleeve 6, two inner lining components and two outer contact parts 7. The upper end of the base 1 is fixed with a top plate 3 by a support column 2. A slide rail 4 is fixed at the upper end of the base 1. Two sliders 5 are slidably connected to the upper end of the slide rail 4. The upper end of each slider 5 is fixed with a positioning sleeve 6 for fixing the saddle branch pipe. Two inner lining components are inserted into the inside of the saddle branch pipe. The upper ends of the saddle branch pipe are both abutted by outer contact parts 7 for pressurization. The contact surface between the outer contact parts 7 and the saddle branch pipe is provided with a fitting groove that matches the curvature of the saddle branch pipe surface.

[0034] Both inner liner assemblies include a housing 8, an expansion kit 10, a side telescopic airbag 9, a retaining strip 12, and an arc-shaped inner liner 11. The side telescopic airbag 9 is fixed inside the housing 8. The telescopic ends of the side telescopic airbag 9 are fixed to the expansion kit 10. The expansion kit 10 is movably connected to the side wall of the housing 8. The surfaces of the two expansion kits 10 are fixed with retaining strips 12 for the arc-shaped inner liner 11 to engage. The side end of the side telescopic airbag 9 passes through the housing 8 through the conduit 13 and is connected to the air injection end of the electromagnetic three-way valve 14.

[0035] The air inlet ends of the two electromagnetic three-way valves 14 are connected to the three-way pipe 15 inside the base 1 through pipes. The air inlet end of the three-way pipe 15 is connected to the air injection end of the small air pump 16. The negative pressure end of the small air pump 16 is connected to the filter pipe 17. The end of the filter pipe 17 passes through the cover plate 18 at the front end of the base 1. A dustproof net 19 is installed in the middle of the end of the filter pipe 17. Considering the drawback of frequent replacement of the inner mold due to the difference in the inner diameter of the processed pipe, which is a relatively cumbersome process, this utility model can adapt to the inside of the saddle branch pipe with different inner diameters by using two inner lining components to fix it, thereby increasing the adaptability of the device. When in use, the two inner lining components are placed inside the horizontal end and the vertical end respectively. Then, the small air pump 16 is used in conjunction with the electromagnetic three-way valves 14 to inject air into the inside of the side telescopic airbag 9. At this time, the telescopic end of the side telescopic airbag 9 expands, which drives the two outward expansion kits 10 to expand outward until the arc-shaped inner lining 11 on the outer surface of the two outward expansion kits 10 comes into contact with the inside of the saddle branch pipe to complete the fixation.

[0036] Each slider 5 has a positioning bolt 20 threaded to its front end. The back of the positioning bolt 20 is fixed to the front end of the slide rail 4. By setting the slider 5 and the slide rail 4, the position of the positioning sleeve 6 is fixed. That is, the distance between the two positioning sleeves 6 can be adjusted by sliding the slider 5 as needed. After adjustment, the positioning bolt 20 is tightened to fix it.

[0037] The upper ends of the two positioning sleeves 6 are threaded with fixing bolts 21. The bottom ends of the fixing bolts 21 are fixed to the pressure block 22 by bearings, and the middle of the pressure block 22 is fixed with a rubber pad 23. The lower end of the inside of the positioning sleeve 6 is equipped with a ball bearing 24. By setting the fixing bolts 21 in conjunction with the pressure block 22, the saddle branch pipe placed inside the positioning sleeve 6 is positioned, thus preventing the saddle branch pipe from rolling inside the positioning sleeve 6 when the external contact part 7 is used.

[0038] Each of the four support columns 2 is fixed with a sleeve block 25. Two sleeve blocks 25 on each side are fixed to the same support bar 26. The upper end of each support bar 26 is fixed to the telescopic end of the electric push rod 27 through an angle bracket. The electric push rod 27 is fixed to the upper end of the top plate 3. By setting the sleeve blocks 25 in conjunction with the support columns 2, the moving support bar 26 is guided. The presence of the electric push rod 27 drives the support bar 26 to rise and fall.

[0039] In this system, each of the two support strips 26 has a wedge-shaped surface with a mounting shell 28. Each mounting shell 28 has an electric telescopic rod 29 fixed inside. The telescopic end of the electric telescopic rod 29 passes through the side end of the mounting shell 28 and is fixed to the outer contact member 7 with screws. Each outer contact member 7 has an anti-slip pad 30 fixed on its outer surface. The electric telescopic rod 29 drives the outer contact member 7. When the outer contact member 7 is driven by the electric telescopic rod 29, the outer contact member 7 will press against the outer side of the saddle branch pipe at an angle. Considering that the outer curvature of different saddle branch pipes is different, when processing different saddle branch pipes, an outer contact member 7 that matches the surface curvature of the saddle branch pipe being processed is selected and fixed to the electric telescopic rod 29, so that the fitting groove of the outer contact member 7 fits the outer curvature of the current saddle branch pipe.

[0040] Among them, the outer contact member 7 and the mounting shell 28 are symmetrically fixed with a guide rod 31, and the guide rod 31 penetrates the interior of the mounting shell 28. The guide rod 31 guides the moving outer contact member 7, ensuring that the electric telescopic rod 29 will not shift its position during the extension and retraction process.

[0041] Each arc-shaped inner liner 11 has a slot on its side surface that matches the outer contour of the clip 12. The arc-shaped inner liner 11 and the clip 12 are connected by a snap-fit ​​mechanism, which makes it easier for users to replace the arc-shaped inner liner 11 with a higher fit to the inner surface of the saddle branch pipe when needed.

[0042] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A pressurizing device for forming a saddle-type branch pipe, comprising a base (1), a positioning sleeve (6), two inner lining components, and two outer contact members (7), characterized in that, The upper end of the base (1) is fixed with a top plate (3) by a support column (2). A slide rail (4) is fixed at the upper end of the base (1). Two sliders (5) are slidably connected at the upper end of the slide rail (4). A positioning sleeve (6) for fixing the saddle branch pipe is fixed at the upper end of each slider (5). Two inner lining components are inserted inside the saddle branch pipe. Both sides of the upper end of the saddle branch pipe are abutted by an outer contact piece (7) for pressurization. The contact surface between the outer contact piece (7) and the saddle branch pipe is provided with a fitting groove that matches the curvature of the saddle branch pipe surface. Both of the inner liner assemblies include a housing (8), an expansion kit (10), a side telescopic airbag (9), a retaining strip (12), and an arc-shaped inner liner (11). The side telescopic airbag (9) is fixed inside the housing (8). The telescopic ends of the side telescopic airbag (9) are fixed to the expansion kit (10). The expansion kit (10) is movably connected to the side wall of the housing (8). The surfaces of the two expansion kits (10) are fixed with retaining strips (12) for the arc-shaped inner liner (11) to be engaged. The side end of the side telescopic airbag (9) passes through the housing (8) through a conduit (13) and is connected to the air injection end of the electromagnetic three-way valve (14). The air inlet of the two electromagnetic three-way valves (14) is connected to the three-way pipe (15) inside the base (1) through a pipe. The air inlet of the three-way pipe (15) is connected to the air injection end of the small air pump (16). The negative pressure end of the small air pump (16) is connected to a filter pipe (17). The end of the filter pipe (17) passes through the cover plate (18) at the front end of the base (1). A dustproof net (19) is installed in the middle of the end of the filter pipe (17).

2. The pressurizing device for forming a saddle-type branch pipe according to claim 1, characterized in that, Each slider (5) has a positioning bolt (20) threaded to its front end, and the back of the positioning bolt (20) is fixed to the front end of the slide rail (4).

3. The pressurizing device for forming a saddle-type branch pipe according to claim 1, characterized in that, The upper ends of the two positioning sleeves (6) are threaded with fixing bolts (21), the bottom ends of the fixing bolts (21) are fixed to the pressure block (22) by bearings, and the middle part of the pressure block (22) is fixed with a rubber pad (23). The lower end of the inside of the positioning sleeve (6) is equipped with a ball bearing (24).

4. The pressurizing device for forming a saddle-type branch pipe according to claim 1, characterized in that, Each of the four support columns (2) is fixed with a sleeve block (25). Two sleeve blocks (25) on each side are fixed with the same support strip (26). The upper end of each support strip (26) is fixed to the telescopic end of the electric push rod (27) by a corner bracket. The electric push rod (27) is fixed to the upper end of the top plate (3).

5. The pressurizing device for forming a saddle-type branch pipe according to claim 4, characterized in that, The wedge-shaped surfaces of the two support bars (26) are fixed with mounting shells (28), and each mounting shell (28) is fixed with an electric telescopic rod (29). The telescopic end of the electric telescopic rod (29) passes through the side end of the mounting shell (28) and is fixed to the outer contact member (7) by screws. Each outer contact member (7) is fixed with an anti-slip pad (30) on its outer surface.

6. The pressurizing device for forming a saddle-type branch pipe according to claim 1, characterized in that, The outer contact member (7) is symmetrically fixed with a guide rod (31) on the opposite side of the mounting shell (28), and the guide rod (31) penetrates the interior of the mounting shell (28).

7. The pressurizing device for forming a saddle-type branch pipe according to claim 1, characterized in that, Each of the arcuate liners (11) has a slot on its side surface that matches the outer contour of the card strip (12).

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