Internal argon filling protection device for water tank welding

Abstract

The utility model discloses a water tank welding internal argon filling protection device which comprises an argon filling pipe, and plugging mechanisms are assembled and connected to the two sides of the argon filling pipe respectively. The plugging mechanism comprises a fixing plate assembled and connected to the argon filling pipe and an annular positioning plate detachably connected with the fixing plate, and an annular plugging plate is assembled and connected between the fixing plate and the annular positioning plate; a plurality of argon discharging nozzle pipes are assembled and connected to the argon filling pipe, and the argon discharging nozzle pipes are located between the plugging mechanisms; the side walls, facing each other, of the fixing plates are assembled and connected to the argon filling pipe through adjusting structures correspondingly, and the size of a plugging cavity formed between the plugging mechanisms is adjusted through the adjusting structures. By means of the mode, in the process of welding the tank body, a local sealing mode is adopted, and argon with the protection function is filled in a local sealing cavity, so that the use amount of argon is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water tank welding processing, in particular to an argon gas filled internal protection device for water tank welding. Background Art

[0002] A water tank is a tank for storing water. Depending on its use, the volume of the tank often varies greatly. For example, a water tank used in workshop production has a relatively large volume.

[0003] In the production process of water tanks, the water tanks need to be welded. Specifically, the most common welding method is argon arc welding. Specifically, compared with traditional welding, there is no welding slag in the argon arc welding process, so the welding seam position is relatively flat. The advantages of this method are: the flat welding position is not easy to accommodate dirt during the later water storage process, and the inside of the tank is relatively clean after long-term use, and it is not easy to pollute the stored water. The traditional welding method is not smooth enough on the surface, so it is easy to accommodate dirt. After the dirt is moldy, the water in the tank is seriously polluted.

[0004] During the argon arc welding process, protective gas argon needs to be pumped into the tank to form an argon atmosphere. When the amount of argon is sufficient, the operator welds and seals along the weld position.

[0005] However, in the actual working process, since the volume of the tank is relatively large, the amount of argon gas injected needs to be kept sufficient, so the amount of argon gas used is relatively large.

[0006] In the actual welding process, it is only necessary to fill the welding position with argon atmosphere. Therefore, a large amount of argon gas in non-welding positions is actually an invalid protective gas, which leads to a large amount of argon gas waste in the welding process.

[0007] The fundamental factor of the above technology is that during the welding process, it is impossible to form a local blockage at the welding position inside the tank body, thereby forming a local argon atmosphere and saving gas consumption. Utility Model Content

[0008] Based on the above background, the purpose of the utility model is to provide an argon gas protection device for internal welding of a water tank.

[0009] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0010] An argon-filled protection device for water tank welding comprises an argon-filled gas pipe, and both sides of the argon-filled gas pipe are respectively equipped with a blocking mechanism;

[0011] The blocking mechanism comprises a fixing plate assembled and connected to the argon filling pipe and an annular positioning plate detachably connected to the fixing plate, and an annular blocking plate is assembled and connected between the fixing plate and the annular positioning plate;

[0012] The argon filling pipe is equipped with a plurality of argon exhaust nozzles, and the argon exhaust nozzles are located between the blocking mechanisms;

[0013] The side walls of the fixed plates facing each other are respectively assembled and connected to the argon filling pipe through adjustment structures, and the size of the blocking cavity formed between the blocking mechanisms can be adjusted through the adjustment structure.

[0014] Preferably, the adjustment structure comprises a threaded adjustment tube fixedly connected to the side walls of the fixed plate facing each other, and the argon filling tube is threadedly connected to the threaded adjustment tube.

[0015] Preferably, hexagonal convex ridges are welded on the argon filling tube.

[0016] Preferably, a plurality of connecting screws are fixedly connected to the fixing plate, a plurality of through holes are opened on the annular sealing plate and the annular positioning plate, and the connecting screws are threadedly connected with nuts after passing through the through holes.

[0017] Preferably, the argon filling gas pipe is assembled and connected with two gas nozzle seats spaced apart from each other on the left and right, and the gas nozzle pipe is threadedly connected to the gas nozzle seats.

[0018] Preferably, the annular sealing plate is made of rubber.

[0019] Preferably, the water tank welding internal argon gas filling protection device also includes support mechanisms respectively fixed on the side walls of the fixing plates facing each other.

[0020] Preferably, the support mechanism comprises a plurality of adjustment seats fixedly mounted on a fixed plate, the adjustment seats are mounted and connected with height-adjustable adjustment support arms, and the adjustment support arms are hinged with support balls.

[0021] Preferably, the adjustment support arm is slidably connected to the adjustment seat;

[0022] The adjusting seat is threadedly connected with a locking screw for locking the adjusting support arm.

[0023] The utility model has the following beneficial effects:

[0024] 1. The specific installation method of the fixing plate, the annular positioning plate and the annular blocking plate is as follows: a plurality of connecting screws are fixedly connected to the fixing plate, and a plurality of through holes are opened on the annular blocking plate and the annular positioning plate, and the connecting screws are threadedly connected with nuts after passing through the through holes. In this way, different sizes of annular blocking plates can be selected to adapt to different sizes of tanks, such as a tank of a certain size can be blocked with a large-sized annular blocking plate.

[0025] 2. Insert the whole device deep into the tank body, and place the plugging mechanism on both sides of the welding position to form a local sealing area. Then, connect the argon gas bottle to the argon filling pipe in the existing way, and discharge the argon gas from the exhaust nozzle. During the argon gas discharge process, the high-density argon gas is filled into the local sealing area. In the above method, during the welding of the tank body, a local sealing method is adopted, and the protective argon gas is filled in the local sealing cavity to save the amount of argon gas.

[0026] 3. The purpose of installing the plugging mechanism on both sides in an adjustable spacing is to facilitate the change of the size of the sealing area during the working process, so as to form a protective area with the smallest sealing area and the least argon gas, and weld multiple welding positions on the tank body. If the welds are close, multiple welds are located in the sealing area and welded simultaneously, while if the welds are far apart, a separate sealing area is formed and then welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the dispersed structure in the embodiment of the utility model;

[0029] Figure 2 For the utility model embodiment Figure 1 Schematic diagram of the overall structure in;

[0030] Figure 3 This is a structural schematic diagram of the blocking mechanism in the embodiment of the utility model;

[0031] Figure 4 This is a structural schematic diagram of the support mechanism for installing a fixing plate in an embodiment of the utility model;

[0032] Figure 5 It is a structural schematic diagram of the support mechanism in an embodiment of the utility model.

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] Example 1

[0038] like Figure 1-5 As shown, an internal argon gas protection device for water tank welding includes an argon gas pipe 1 (the left end of the argon gas pipe 1 is the air inlet end, and the right end is sealed), and both sides of the argon gas pipe 1 are respectively equipped with sealing mechanisms 3.

[0039] Specifically, the sealing mechanism 3 includes a fixed plate 31 (the shape of the fixed plate 31 is circular) assembled and connected to the argon filling pipe 1 and an annular positioning plate detachably connected to the fixed plate 31. An annular sealing plate 33 is assembled and connected between the fixed plate 31 and the annular positioning plate. In order to improve the sealing effect, the annular sealing plate 33 is made of rubber. During the sealing process, the annular sealing plate 33 elastically contacts the inner wall of the tank body to achieve a high sealing performance under elastic extrusion. At the same time, a plurality of argon exhaust nozzles 2 are assembled and connected to the argon filling pipe 1, and the argon exhaust nozzles 2 are located between the sealing mechanisms 3 (specifically, the argon exhaust nozzles 2 are the same as the existing exhaust nozzles, and the same as the existing method of installing the nozzles. The argon filling pipe 1 is assembled and connected with two nozzle seats spaced apart on the left and right, and the nozzles are threadedly connected to the nozzle seats).

[0040] The specific installation method of the fixing plate 31, the annular positioning plate, and the annular blocking plate 33 is as follows: a plurality of connecting screws 32 are fixedly connected to the fixing plate 31, and a plurality of through holes are provided on the annular blocking plate 33 and the annular positioning plate, and the connecting screws 32 pass through the through holes and are threadedly connected with nuts 321. In this way, different sizes of annular blocking plates 33 can be selected to fit different sizes of tanks, such as a tank of a certain size can be blocked by a large-sized annular blocking plate 33.

[0041] After assembling in the above manner, the entire device is inserted deep into the tank body, and the sealing mechanism 3 is located on both sides of the welding position to form a local sealing area. Then, the argon gas bottle is connected to the argon filling pipe 1 in the existing manner, and the argon gas is discharged from the exhaust nozzle. During the argon gas discharge process, the high-density argon gas is filled into the local sealing area and the air is driven away from the weld position.

[0042] In the process of welding the tank body by the above method, a local sealing method is adopted, and argon gas with protective function is filled in the local sealing cavity to save the amount of argon gas.

[0043] Example 2

[0044] like Figure 1-5 As shown, based on the structure of Example 1, the side walls of the fixing plates 31 facing each other are respectively assembled and connected to the argon filling pipe 1 through adjustment structures, and the size of the sealing cavity formed between the sealing mechanisms 3 is adjusted through the adjustment structure.

[0045] Specifically, the adjustment structure includes a threaded adjustment tube fixedly connected to the side walls of the fixed plate 31 facing each other, and the argon filling tube 1 is threadedly connected to the threaded adjustment tube 4. Specifically, a threaded through hole is opened on the fixed plate 31 at the right side, and the threaded adjustment tube 4 is welded on the fixed plate 31 and connected to the threaded through hole.

[0046] Screw the argon filling tube 1 (the outer wall of the argon tube 1 is provided with an adaptive threaded structure) in from the right fixing plate 31, and fasten it to the threaded adjustment tube 4 after threading it from the right fixing plate 31, and continue to screw it until it is threadedly connected to the threaded adjustment tube 4 fixed to the left fixing plate 31.

[0047] During the process of adjusting the spacing, the adjustment is achieved by threading the threaded adjustment tube 4 onto the position of the argon filling tube 1 .

[0048] The argon filling pipe 1 is welded with hexagonal convex ribs 11. This method is for the convenience of adjustment. After the hexagonal convex ribs 11 are locked with a wrench or other tools, the adjustment is convenient.

[0049] The above structure is used to install the plugging mechanism 3 on both sides in an adjustable spacing manner, so as to facilitate the change of the size of the sealing area during operation, thereby realizing the welding of multiple welding positions on the tank body with the smallest sealing area and the least argon gas to form a protective area. If the weld positions are relatively close, multiple welds are located in the sealing area and welded synchronously, while if the weld spacing is far, a sealing area is formed separately and then welded.

[0050] Example 3

[0051] like Figure 1-5 As shown, based on the structure of Example 1, in order to improve the stability during the plugging process, the argon gas protection device for internal welding of the water tank further includes support mechanisms respectively fixed on the side walls of the fixed plate 31 facing each other. The support mechanism includes a plurality of adjustment seats 51 fixedly mounted on the fixed plate 31, and the adjustment seats 51 are equipped with height-adjustable adjustment support arms 52 (the shape of the adjustment support arms 52 is cylindrical), and the adjustment support arms 52 are hinged with support balls 521 (same as the existing hinge method, the adjustment support arms 52 are provided with hinge grooves, and the support balls 521 are limited in the hinge grooves and can rotate relative to the hinge grooves).

[0052] The above-mentioned adjustment support arm 52 is slidably connected to the adjustment seat 51 (a cylindrical sliding cavity is provided on the adjustment seat 51); the corresponding adjustment seat 51 is threadedly connected with a locking screw 511 for locking the adjustment support arm 52. The adjustment seat 51 is loosened and each adjustment support arm 52 is adjusted until the support ball 521 on the adjustment support arm 52 contacts the inner wall of the tank body, and then the locking screw 511 is locked and positioned, and then the entire device is pushed into the tank body to achieve the support mode, ensuring that the annular sealing plate 33 is not deformed by the gravity of the entire device, thereby causing air leakage at the sealing position.

[0053] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An argon gas protection device for water tank welding, characterized in that: It comprises an argon filling pipe, and both sides of the argon filling pipe are respectively equipped with a blocking mechanism; The blocking mechanism comprises a fixing plate assembled and connected to the argon filling pipe and an annular positioning plate detachably connected to the fixing plate, and an annular blocking plate is assembled and connected between the fixing plate and the annular positioning plate; The argon filling pipe is equipped with a plurality of argon exhaust nozzles, and the argon exhaust nozzles are located between the blocking mechanisms; The side walls of the fixed plates facing each other are respectively assembled and connected to the argon filling pipe through adjustment structures, and the size of the blocking cavity formed between the blocking mechanisms can be adjusted through the adjustment structure.

2. The argon gas filling protection device for water tank welding according to claim 1 is characterized in that: The regulating structure comprises a threaded regulating tube fixedly connected to the side walls of the fixing plate facing each other, and the argon filling tube is threadedly connected to the threaded regulating tube.

3. The argon gas filling protection device for water tank welding according to claim 2 is characterized in that: Hexagonal convex ridges are welded on the argon filling gas pipe.

4. The argon gas filling protection device for water tank welding according to claim 1 is characterized in that: The fixing plate is fixedly connected with a plurality of connecting screws, the annular sealing plate and the annular positioning plate are provided with a plurality of through holes, and the connecting screws are threadedly connected with nuts after passing through the through holes.

5. The argon gas internal protection device for water tank welding according to claim 1 is characterized in that: The argon filling gas pipe is assembled and connected with two gas nozzle seats spaced apart from each other on the left and right sides, and the gas nozzle pipe is threadedly connected to the gas nozzle seats.

6. The argon gas filling protection device for water tank welding according to claim 1 is characterized in that: The material of the annular sealing plate is rubber.

7. The argon gas protection device for water tank welding according to claim 1 is characterized in that: The argon gas filling protection device for water tank welding also includes support mechanisms respectively fixed on the side walls of the fixing plates facing each other.

8. The argon gas filling protection device for water tank welding according to claim 7 is characterized in that: The support mechanism comprises a plurality of adjustment seats fixedly mounted on a fixed plate, the adjustment seats are mounted and connected with height-adjustable adjustment support arms, and the adjustment support arms are hinged with support balls.

9. The argon gas filling protection device for water tank welding according to claim 8 is characterized in that: The adjustment support arm is slidably connected to the adjustment seat; The adjusting seat is threadedly connected with a locking screw for locking the adjusting support arm.

Images