Connecting pipe flange welding assembly of seawater filter

Abstract

The utility model relates to the technical field of flange welding tools, in particular to a seawater filter connecting pipe flange welding assembly which comprises a butt joint pipe body, a flange body and a supporting shaft. Two sets of quick positioning mechanisms are arranged outside the supporting shaft, and an abutting limiting mechanism is arranged on the side edge of one set of quick positioning mechanism; when the seawater filter connecting pipe flange welding assembly is used, the characteristic that a spring can synchronously generate counter-acting force under extrusion force is utilized to be matched with transmission of a mechanism assembly, so that the axis position of a supporting shaft represents the axis position of a connecting pipe when a positioning assembly is installed in the connecting pipe; the design of auxiliary supporting of the corresponding supporting shaft is matched with related height-adjustable supporting assemblies, on the basis that it is guaranteed that the axis positions of the connecting pipe and the flange plate to be welded are unified, the phenomenon of staggered installation of follow-up welded finished products is avoided, the overall structural design is ingenious, and the practical effect is good.

Description

Technical Field

[0001] This utility model relates to the field of flange welding tooling technology, and in particular to a welding assembly for a seawater filter inlet flange. Background Technology

[0002] A seawater filter is a device used to treat seawater. Its main purpose is to remove suspended solids, impurities and other pollutants from seawater, thereby improving water quality or achieving seawater desalination. Seawater filters are widely used in ships, marine aquaculture, seawater desalination plants and seawater cooling. When a seawater filter is connected to an external inlet or outlet pipe, a correspondingly sized connecting flange needs to be welded on to facilitate the interconnection and installation of the two sets of pipes. The seawater filter connecting flange welding assembly is an auxiliary positioning component that serves to ensure stable welding between the pipe and the connecting flange.

[0003] Because existing seawater filter connectors require manual positioning of the flange during welding installation before proceeding with the welding process, this manual method cannot guarantee that the installation axis of the seawater filter connector and the flange to be welded is aligned. This can easily lead to slight positional deviations, resulting in deviations in the position of the finished welded flange and overall installation accuracy being somewhat compromised. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned problems by proposing a welding assembly for a seawater filter inlet flange. This improves upon the existing method where the seawater filter inlet needs to be manually held to determine its position before welding to the flange. However, this manual method cannot guarantee that the installation axis of the seawater filter inlet and the flange to be welded are aligned, and slight positional deviations are very likely to occur, resulting in deviations in the position of the finished welded flange and poor overall installation accuracy.

[0005] A seawater filter inlet flange welding assembly includes an inlet flange body, a flange body, and a support shaft: one outer wall of the inlet flange body is installed with a seawater filter, and the other outer wall of the inlet flange body is fitted with the outer wall of the flange body. Both the inlet flange body and the flange body are located on the outside of the support shaft. Two sets of quick positioning mechanisms are provided on the outside of the support shaft, and one set of quick positioning mechanisms has an abutment limiting mechanism on its side.

[0006] The side of the contact limiting mechanism is provided with an auxiliary support mechanism. The quick positioning mechanism includes a support plate, a limiting cylinder, a limiting piston rod, a contact spring, a support back plate, and a friction pad. There are two sets of support plates. The first set of support plates is connected to the outer side wall of the support shaft near the connecting pipe body. The outer side wall of the second set of support plates has a through sliding groove at the axis position, and the second set of support plates is slidably installed outside the support shaft. The outer side wall of the support plate is equidistantly embedded with limiting cylinders. The limiting piston rod is slidably installed inside the limiting cylinder. A contact spring is connected between the limiting piston rod and the bottom inner wall of the limiting cylinder. The protruding end of the limiting piston rod is located outside the limiting cylinder and is connected to the outer side wall of the support back plate. The outer side wall of the support back plate away from the limiting cylinder is provided with a friction pad.

[0007] Preferably, the overall shape of the support back plate and the friction pad is set as an arc-shaped structure, and the outer walls of the friction pad on both sides away from the support back plate are also set as an arc-shaped structure.

[0008] Preferably, the abutment limiting mechanism includes a limiting ring and a through hole. The second set of support plates is provided with a limiting ring on the outer side wall of the sliding groove position, and the limiting ring is sleeved on the outside of the support shaft. The top outer wall of the limiting ring is provided with a through hole.

[0009] Preferably, the top outer wall of the support shaft is provided with positioning holes at equal intervals, and the through holes and positioning holes are engaged with the pin.

[0010] Preferably, the auxiliary support mechanism includes a limiting mounting plate, a first support part, a second support part, and an electric telescopic rod. The limiting mounting plate is provided on the outer side wall of the support shaft away from the connecting pipe body. The first support part is provided on the top outer wall of the limiting mounting plate. The second support part is fitted to the bottom outer wall of the limiting mounting plate. The bottom outer wall of the second support part is connected to the extended end of the electric telescopic rod.

[0011] Preferably, the bottom outer wall of the electric telescopic rod is connected to the top outer wall of the support base, and the top outer walls of the first support part and the second support part are symmetrically provided with threaded grooves.

[0012] Preferably, an annular washer is provided on the top outer wall of the first support part at the threaded groove position, and a nut block is provided on the bottom outer wall of the second support part at the threaded groove position, wherein the nut block and the fastening bolt are threaded together.

[0013] The beneficial effects of this utility model are:

[0014] 1. When in use, this seawater filter inlet flange welding assembly utilizes the characteristic that a spring generates a reaction force synchronously under compression, combined with the transmission of the mechanism components. This ensures that when the positioning component is installed inside the inlet, the axis of the support shaft represents the axis of the inlet. In conjunction with the related adjustable height support components, the design provides auxiliary support for the support shaft. This ensures that the axis of the inlet and the flange to be welded are aligned, preventing misalignment of the subsequent welded products. The overall structure is ingeniously designed and has good practical effect.

[0015] 2. When in use, the welding assembly of the seawater filter connecting flange uses a pin assembly to abut and limit the positioning of the flange. This ensures the stability of the welding distance between the flange and the connecting pipe, and also ensures the stability of the subsequent welding process. At the same time, the limiting effect prevents the flange from moving to the horizontal side during the welding process, achieving a good limiting effect. The overall structure design is simple and has good practical effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the position and structure of the butt joint body and the flange body of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the rapid positioning mechanism of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the contact limiting mechanism of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the auxiliary support mechanism of this utility model.

[0021] In the diagram: 1. Connecting pipe body; 2. Flange body; 3. Support shaft; 4. Quick positioning mechanism; 41. Support plate; 42. Limiting cylinder; 43. Limiting piston rod; 44. Contact spring; 45. Support back plate; 46. Friction pad; 5. Contact limiting mechanism; 51. Limiting ring; 52. Through hole; 53. Positioning hole; 54. Pin; 6. Auxiliary support mechanism; 61. Limiting mounting plate; 62. First support part; 63. Second support part; 64. Electric telescopic rod; 65. Support base; 66. Threaded groove; 67. Annular washer; 68. Nut block; 69. Fastening bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In practical implementation: such as Figure 1-5 As shown, a seawater filter inlet flange welding assembly includes an inlet flange body 1, a flange body 2, and a support shaft 3: one outer wall of the inlet flange body 1 is installed with the seawater filter, and the other outer wall of the inlet flange body 1 is attached to the outer wall of the flange body 2. Both the inlet flange body 1 and the flange body 2 are located on the outside of the support shaft 3. Two sets of quick positioning mechanisms 4 are provided on the outside of the support shaft 3, and one set of quick positioning mechanisms 4 has an abutment limiting mechanism 5 on its side.

[0024] An auxiliary support mechanism 6 is provided on the side of the contact limiting mechanism 5. The quick positioning mechanism 4 includes a support plate 41, a limiting cylinder 42, a limiting piston rod 43, a contact spring 44, a support back plate 45, and a friction pad 46. Two sets of support plates 41 are provided. The first set of support plates 41 is connected to the outer side wall of the support shaft 3 near the connecting pipe body 1. The outer side wall of the second set of support plates 41 located at the axis position has a through sliding groove, and the second set of support plates 41 is slidably installed on the outside of the support shaft 3. The limiting cylinder 4 is installed in an embedded manner around the outer side wall of the support plate 41 at equal intervals. 2. A limiting piston rod 43 is slidably installed inside the limiting cylinder 42. A contact spring 44 is connected between the limiting piston rod 43 and the inner wall of the bottom end of the limiting cylinder 42. The protruding end of the limiting piston rod 43 is located outside the limiting cylinder 42 and is connected to the outer side wall of the support back plate 45. A friction pad 46 is provided on the outer side wall of the support back plate 45 away from the limiting cylinder 42. When it is necessary to position the connecting pipe body 1 outside the first quick positioning mechanism 4, it is only necessary to hold the support shaft 3 and push the quick positioning mechanism 4 to the connecting pipe along the horizontal side. Inside the main body 1, the friction pad 46 automatically moves towards the support plate 41 under the pressure of the inner wall of the connecting pipe main body 1. Simultaneously, the movement of the friction pad 46 also drives the support back plate 45 to move, which in turn causes the limiting piston rod 43 to slide inside the limiting cylinder 42. At this time, the resisting spring 44 is in a contracted state due to the pressure of the limiting piston rod 43. Simultaneously, the pressure on the resisting spring 44 generates a reaction force that pushes the limiting piston rod 43 to move in the opposite direction. Subsequently, the reverse movement of the limiting piston rod 43 automatically pushes the support back plate 45 to move, thereby causing the friction pad 46 to... Slightly deform and make tight contact with the inner wall of the connecting pipe body 1. Then, the first set of support plates 41 is sent into the connecting pipe body 1 to a suitable depth. The standard is that the support shaft 3 can be stably positioned on the side of the connecting pipe body 1 without manual holding. After reaching the standard, the support shaft 3 is released directly. At this time, the position indicated by the axis of the support shaft 3 is the axis position of the connecting pipe body 1. The principle of installing the flange body 2 into the quick positioning mechanism 4 is the same as above. It should be noted that the installation depth of the friction pad 46 should not reach the welding position of the flange body 2, so as not to affect the normal progress of subsequent welding processes.

[0025] Both the support back plate 45 and the friction pad 46 have an overall arc-shaped structure, and the outer walls of the friction pad 46 on both sides away from the support back plate 45 are also arc-shaped. This design allows the support back plate 45 and the friction pad 46 to better fit against the inner walls of the connecting pipe body 1 and the flange body 2, achieving a good resistance and support effect. The arc-shaped outer walls of the friction pad 46 on both sides away from the support back plate 45 reduce the resistance it encounters when inserted into the connecting pipe body 1 and the flange body 2, making it easy to install and less prone to damage.

[0026] The limiting mechanism 5 includes a limiting ring 51 and a through hole 52. The second set of support plates 41 has a limiting ring 51 on the outer side wall of the sliding groove, and the limiting ring 51 is sleeved on the outside of the support shaft 3. The top outer wall of the limiting ring 51 has a through hole 52, and the top outer wall of the support shaft 3 has corresponding positioning holes 53 at equal intervals. The through hole 52 and the positioning hole 53 are engaged with the pin 54. When it is necessary to move the flange body 2 together with the second set of quick positioning mechanisms 4 to the designated welding position with the connecting pipe body 1, it is only necessary to directly pull the flange body 2 and the second set of quick positioning mechanisms 4. The quick positioning mechanism 4 moves together to the welding position of the connecting pipe body 1. Then, the second set of support plates 41 slides along the outside of the support shaft 3 and drives the limiting ring 51 to move synchronously. After moving to the designated position, the pin 54 passes through the through hole 52 and the positioning hole 53 from top to bottom to complete the limiting of the limiting ring 51 and thus complete the limiting of the second set of quick positioning mechanisms 4. At this point, the welding position of the connecting pipe body 1 and the flange body 2 can be accurately determined. The subsequent welding process can be carried out using the existing operating technology of welding gun. This is an existing technology and will not be described in detail here.

[0027] The auxiliary support mechanism 6 includes a limiting mounting plate 61, a first support part 62, a second support part 63, and an electric telescopic rod 64. The limiting mounting plate 61 is located on the outer side of the support shaft 3 away from the connecting pipe body 1. The first support part 62 is located on the top outer wall of the limiting mounting plate 61, and the second support part 63 is fitted to the bottom outer wall of the limiting mounting plate 61. The bottom outer wall of the second support part 63 is connected to the extended end of the electric telescopic rod 64, and the bottom outer wall of the electric telescopic rod 64 is connected to the top outer wall of the support base 65. The top outer walls of both the first support part 62 and the second support part 63 are symmetrically perforated with threaded grooves 66. An annular washer 67 is correspondingly provided on the top outer wall of the first support part 62 at the location of the threaded groove 66, and a nut block 68 is correspondingly provided on the bottom outer wall of the second support part 63 at the location of the threaded groove 66. The nut block 68 and the fastening bolt 69 are threaded together. When the above-mentioned support... After the support shaft 3 is installed and the axial position of the connecting pipe body 1 is determined, the extended end of the electric telescopic rod 64 needs to be adjusted to a suitable support height. Then, the extended end of the electric telescopic rod 64 will automatically drive the second support part 63 to move. When the second support part 63 moves to fit against the outer wall of the bottom end of the first support part 62, the electric telescopic rod 64 is closed. It should be noted that the electric telescopic rod 64 has a self-locking function. After closing, the second support part 63 can still maintain the adjusted support height. The setting of the support base 65 here has the effect of positioning and installing the electric telescopic rod 64. When it is necessary to install the first support part 62 and the second support part 63 together, it is only necessary to tighten the fastening bolt 69 from top to bottom through the two sets of threaded grooves 66 and the nut block 68. The setting of the annular washer 67 here has the effect of reinforcing the installation of the fastening bolt 69 by increasing the contact friction.

[0028] In use, the first step is to position the connecting pipe body 1 outside the first quick positioning mechanism 4. Then, simply hold the support shaft 3 and push the quick positioning mechanism 4 horizontally into the connecting pipe body 1. At this point, the friction pad 46, under the pressure of the inner wall of the connecting pipe body 1, automatically moves towards the support plate 41. Simultaneously, the movement of the friction pad 46 also drives the support back plate 45 to move, which in turn drives the limiting piston rod 43 to slide inside the limiting cylinder 42. At this time, the contact spring 44 is compressed by the pressure of the limiting piston rod 43, and the contact... When the spring 44 is compressed, it will generate a reaction force to push the limiting piston rod 43 to move in the opposite direction. Then, the limiting piston rod 43 will automatically push the support back plate 45 to move, so that the friction pad 46 will be slightly deformed and closely contact the inner wall of the connecting pipe body 1. Then, the first set of support plates 41 will be sent into the connecting pipe body 1 to a suitable depth. The standard is that the support shaft 3 can be stably positioned on the side of the connecting pipe body 1 without manual holding. After reaching the standard, the support shaft 3 will be released directly. At this time, the position indicated by the axis of the support shaft 3 is the axis position of the connecting pipe body 1.

[0029] When the support shaft 3 is installed and the axial position of the connecting pipe body 1 is determined, the extended end of the electric telescopic rod 64 needs to be adjusted to a suitable support height. Then, the extended end of the electric telescopic rod 64 will automatically drive the second support part 63 to move. When the second support part 63 moves to fit against the outer wall of the bottom end of the first support part 62, the electric telescopic rod 64 is closed. It should be noted that the electric telescopic rod 64 has a self-locking function. After closing, the second support part 63 can still maintain the adjusted support height. The setting of the support base 65 here plays a role in positioning and installing the electric telescopic rod 64.

[0030] After the height of the support component is determined, the flange body 2 to be welded is then installed through the support shaft 3 onto the outside of the second set of quick positioning mechanisms 4. The principle is the same as the installation principle of the connecting pipe body 1 mentioned above. It should be noted that the installation depth of the friction pad 46 should not reach the welding position of the flange body 2, so as not to affect the normal progress of subsequent welding processes. Then, the first support part 62 and the second support part 63 are installed together. At this time, it is only necessary to tighten the fastening bolt 69 through the two sets of threaded grooves 66 and the nut block 68 from top to bottom. The setting of the annular gasket 67 here increases the contact friction and strengthens the installation of the fastening bolt 69. Thus, the support component achieves the support effect of the support shaft 3. The connecting pipe body 1 is installed on the side of the seawater filter and the position is set in a specified manner, without the need for auxiliary support.

[0031] Subsequently, when it is necessary to move the flange body 2 together with the second set of quick positioning mechanisms 4 to the designated welding position with the butt joint body 1, it is only necessary to directly pull the flange body 2 and the second set of quick positioning mechanisms 4 together to the welding position of the butt joint body 1. Then, the second set of support plates 41 slides along the outside of the support shaft 3 and simultaneously drives the limit ring 51 to move. After moving to the designated position, the pin shaft 54 ​​passes through the through hole 52 and the positioning hole 53 from top to bottom to complete the limit of the limit ring 51 and thus complete the limit of the second set of quick positioning mechanisms 4. At this point, the welding position of the butt joint body 1 and the flange body 2 can be accurately determined. The subsequent welding process can be carried out using the existing operating technology of welding gun. This is an existing technology and will not be described in detail here.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A welding assembly for a seawater filter inlet flange, characterized in that, Includes a connecting pipe body (1), a flange body (2), and a support shaft (3): one side of the outer wall of the connecting pipe body (1) is installed with a seawater filter, and the other side of the outer wall of the connecting pipe body (1) is attached to the side outer wall of the flange body (2). Both the connecting pipe body (1) and the flange body (2) are located on the outside of the support shaft (3). Two sets of quick positioning mechanisms (4) are provided on the outside of the support shaft (3), and one set of quick positioning mechanisms (4) is provided with a stop and limit mechanism (5) on the side. The side of the contact limiting mechanism (5) is provided with an auxiliary support mechanism (6). The quick positioning mechanism (4) includes a support plate (41), a limiting cylinder (42), a limiting piston rod (43), a contact spring (44), a support back plate (45), and a friction pad (46). The support plate (41) is provided in two sets. The first set of support plates (41) is connected to the side outer wall of the support shaft (3) near the connecting pipe body (1). The second set of support plates (41) has a sliding groove through the side outer wall at the axis position, and the second set of support plates (41) is slidably mounted on the support shaft (3). Outside the support plate (41), the side outer wall of the support plate (41) is equally spaced and embedded with a limiting cylinder (42). The limiting cylinder (42) is slidably installed with a limiting piston rod (43). A contact spring (44) is connected between the limiting piston rod (43) and the bottom inner wall of the limiting cylinder (42). The protruding end of the limiting piston rod (43) is located outside the limiting cylinder (42), and the protruding end of the limiting piston rod (43) is connected to the side outer wall of the support back plate (45). A friction pad (46) is provided on the side outer wall of the support back plate (45) away from the limiting cylinder (42).

2. The seawater filter inlet flange welding assembly according to claim 1, characterized in that: The overall shape of the support back plate (45) and the friction pad (46) is set as an arc structure, and the outer walls on both sides of the friction pad (46) away from the support back plate (45) are also set as an arc structure.

3. The seawater filter inlet flange welding assembly according to claim 1, characterized in that: The contact limiting mechanism (5) includes a limiting ring (51) and a through hole (52). The second set of support disks (41) is provided with a limiting ring (51) on the outer side wall of the sliding groove position, and the limiting ring (51) is sleeved on the outside of the support shaft (3). The top outer wall of the limiting ring (51) is provided with a through hole (52).

4. The seawater filter inlet flange welding assembly according to claim 3, characterized in that: The top outer wall of the support shaft (3) is provided with positioning holes (53) at equal intervals, and the through holes (52) and positioning holes (53) are engaged with the pin shaft (54).

5. The seawater filter inlet flange welding assembly according to claim 1, characterized in that: The auxiliary support mechanism (6) includes a limiting mounting plate (61), a first support part (62), a second support part (63), and an electric telescopic rod (64). The supporting shaft (3) is provided with a limiting mounting plate (61) on the outer side away from the connecting pipe body (1). The first support part (62) is provided on the top outer wall of the limiting mounting plate (61). The second support part (63) is fitted to the bottom outer wall of the limiting mounting plate (61). The bottom outer wall of the second support part (63) is connected to the extended end of the electric telescopic rod (64).

6. The seawater filter inlet flange welding assembly according to claim 5, characterized in that: The bottom outer wall of the electric telescopic rod (64) is connected to the top outer wall of the support base (65), and the top outer walls of the first support part (62) and the second support part (63) are symmetrically provided with threaded grooves (66).

7. A seawater filter inlet flange welding assembly according to claim 6, characterized in that: The first support part (62) is provided with an annular gasket (67) on the top outer wall of the threaded groove (66), and the second support part (63) is provided with a nut block (68) on the bottom outer wall of the threaded groove (66). The nut block (68) and the fastening bolt (69) are threaded together.

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