Weld joint protection device

Abstract

The utility model discloses a welding seam protection device which comprises a filler body, a sealing gasket is fixedly adhered to the lower end of the filler body, a protection mechanism for protecting a welding seam is arranged on the filler body, and the protection mechanism comprises a connector, a partition plate, a through hole, a flow guide plate and an exhaust hole. A connector is fixedly connected to the upper end of the filler body in a sleeved mode, the connector is externally connected with a protective gas storage device, the interior of the filler body is filled with protective gas through the connector, the interior of the filler body is divided into two parts through the partition plate, and the filled protective gas can be subjected to flow stabilization through the partition plate; and then the protective gas enters the lower layer of the filler body through the through hole, is guided by the guide plate and then is exhausted through the exhaust hole to protect the welding seam, and the guide plate at the lower end of the partition plate can prevent air from flowing back into the filler body from the exhaust hole to affect the concentration of the protective gas.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically a weld protection device. Background Technology

[0002] Welding is a crucial process in automobile manufacturing, used to connect various parts of the car body. During welding, weld protection devices are often used to protect the weld from oxidation and contamination. These devices prevent the weld from reacting chemically with oxygen, nitrogen, or other gases in the air at high temperatures by providing inert or protective gases, thus ensuring weld quality.

[0003] A weld protection device (publication number: CN217799511U) is provided in the prior art. This device includes: a filler body; an air inlet disposed on a first side of the top of the filler body; a first flow stabilizer disposed within the filler body; a first vent plate disposed within the filler body, with a plurality of first vent holes on its second side; a second flow stabilizer disposed within the filler body; a second vent plate disposed within the filler body, with a plurality of second vent holes on its first side; and an exhaust port disposed on a second side of the filler body, located below the second vent plate. The first and second sides are opposite sides, and the first flow stabilizer, first vent plate, second flow stabilizer, and second vent plate are arranged sequentially from top to bottom within the filler body. By providing the first and second flow stabilizers, turbulence in the protective gas can be avoided. Positioning the first and second vent holes on opposite sides facilitates the complete expulsion of air from the filler body during initial use.

[0004] However, the above-mentioned weld protection device still has the following defects:

[0005] The protective gas is blown towards the weld to protect it. However, during the welding process, air may flow back and contaminate the protective gas, affecting its concentration and causing abnormalities in the protection of the weld. This can lead to weld deterioration, cracking, and reduced mechanical properties. Utility Model Content

[0006] The purpose of this utility model is to provide a weld protection device, which connects to an external protective gas storage device via a connector, and fills the filler body with protective gas through the connector. The protective gas passes through a through hole in the partition plate, and then is discharged through an exhaust hole under the action of a guide plate to protect the weld. The guide plate can effectively prevent external air from flowing back into the filler body and affecting the protective gas, so as to solve at least one of the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A weld protection device includes a filler body, a sealing gasket is fixedly attached to the lower end of the filler body, and a protection mechanism for protecting the weld is provided on the filler body.

[0009] The protective mechanism includes a connector, a partition, a through hole, a guide plate, and an exhaust hole. The connector is fixedly sleeved on the upper end of the filler body. A partition is fixedly connected to the inner wall of the filler body. A through hole is opened in the partition. A guide plate is fixedly connected to the inner wall of the filler body. An exhaust hole is opened on the side wall of the filler body. The partition can divide the interior of the filler body into two chambers. The connector is located in the upper chamber. The through hole is located on the partition and away from the connector. The guide plate is located in the lower chamber and away from the through hole. The exhaust hole is located in the lower chamber and away from the through hole.

[0010] Preferably, the lower ends of the guide vane and the baffle are in contact, and the number of guide vanes is multiple and they are arranged in an alternating array.

[0011] Preferably, a fixing block is fixedly connected to the inner wall of the exhaust port, a filter screen is in contact with the fixing block, and a moving block is slidably connected to the filter screen.

[0012] Preferably, the filler body has an installation groove, a guide rod is fixedly connected in the installation groove, and a spring is sleeved on the outside of the guide rod.

[0013] Preferably, one end of the spring is fixedly connected to the movable block, and the other end of the spring is fixedly connected to the mounting groove.

[0014] Preferably, the movable block is slidably connected to the outside of the guide rod and slidably connected to the mounting groove.

[0015] Preferably, the shape of the mounting groove is consistent with the side shape of the movable block.

[0016] Preferably, the filter screen is made of metal.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention uses an external protective gas storage device connected to a connector to fill the interior of the filler body with protective gas. A partition divides the interior of the filler body into two parts, which stabilizes the flow of the filled protective gas. The protective gas then enters the lower layer of the filler body through a through hole, is guided by a guide plate, and is discharged through an exhaust hole, thus protecting the weld. The guide plate at the lower end of the partition prevents air from flowing back into the interior of the filler body from the exhaust hole, thereby affecting the concentration of the protective gas. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the filler body of this utility model;

[0021] Figure 3 This is a structural development diagram of the filter screen of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the guide plate of this utility model.

[0023] In the diagram: 1. Filler body; 2. Sealing gasket; 3. Protective mechanism; 31. Connector; 32. Partition plate; 33. Through hole; 34. Guide plate; 35. Exhaust hole; 4. Fixing block; 5. Filter screen; 6. Moving block; 7. Mounting groove; 8. Guide rod; 9. Spring. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 This utility model provides a technical solution: a weld protection device, including a filler body 1, a sealing gasket 2 fixedly attached to the lower end of the filler body 1, and a protection mechanism 3 for protecting the weld on the filler body 1.

[0026] The protective mechanism 3 includes a connector 31, a partition 32, a through hole 33, a guide plate 34, and an exhaust hole 35. The connector 31 is fixedly sleeved on the upper end of the filler body 1. The partition 32 is fixedly connected to the inner wall of the filler body 1. The through hole 33 is opened in the partition 32. The guide plate 34 is fixedly connected to the inner wall of the filler body 1. The exhaust hole 35 is opened on the side wall of the filler body 1. The partition 32 can divide the interior of the filler body 1 into two chambers. The connector 31 is located in the upper chamber. The through hole 33 is located on the partition 32 and away from the connector 31. The guide plate 34 is located in the lower chamber and away from the through hole 33. The exhaust hole 35 is located in the lower chamber and away from the through hole 33.

[0027] This utility model utilizes the various components of the above-mentioned protection mechanism 3 in conjunction with each other. A protective gas storage device is connected to the connector 31, and protective gas is filled into the filler body 1 through the connector 31. The internal partition 32 of the filler body 1 is divided into two parts. The upper space of the partition 32 can stabilize the flow of the newly filled protective gas. Then, the protective gas enters the lower layer of the filler body 1 through the through hole 33 on the partition 32, and the guide plate 34 is located on the right side of the through hole 33. After passing through the through hole 33, the gas moves to the right and is then guided by the guide plate 34 before being discharged through the exhaust hole 35 on the lower right side of the filler body 1, thus protecting the weld. The guide plate 34 at the lower end of the partition 32 can prevent air from flowing back into the interior of the filler body 1 from the exhaust hole 35, thereby affecting the concentration of the protective gas.

[0028] The lower ends of the guide vane 34 and the baffle 32 are in contact, and the number of guide vanes 34 is multiple and they are arranged in an interlaced array.

[0029] The baffles 34 are staggered, which can prevent a large amount of air from flowing back into the interior of the filler body 1, reduce the concentration of protective gas, and the multiple sets of baffles 34 can also prevent air from flowing back to the upper space of the filler body 1.

[0030] A fixing block 4 is fixedly connected to the inner wall of the exhaust port 35, a filter screen 5 is in contact with the fixing block 4, and a moving block 6 is slidably connected to the filter screen 5.

[0031] The filter screen 5 can prevent foreign objects generated during the welding process from passing through the vent 35, and can also filter some of the air that flows back into the filler body 1.

[0032] The filler body 1 has an installation groove 7, and a guide rod 8 is fixedly connected in the installation groove 7. A spring 9 is sleeved on the outside of the guide rod 8.

[0033] By pushing the movable block 6 into the mounting groove 7, the restriction on the filter screen 5 can be released, and the filter screen 5 can be removed by moving it.

[0034] One end of the spring 9 is fixedly connected to the movable block 6, and the other end of the spring 9 is fixedly connected to the mounting groove 7.

[0035] As the movable block 6 slides into the mounting slot 7, it will compress the spring 9, causing the spring 9 to generate elastic force. Then, under the action of the elastic force of the spring 9, the movable block 6 can be reset.

[0036] The movable block 6 is slidably connected to the outside of the guide rod 8 and slidably connected to the mounting groove 7.

[0037] During the movement of the moving block 6, the guide rod 8 can provide guidance to prevent the moving block 6 from deviating.

[0038] The shape of the mounting slot 7 is consistent with the side shape of the movable block 6.

[0039] The mounting groove 7 has the same shape as the side of the movable block 6, which can reduce the gap and prevent gas from entering the interior of the filler body 1 through the gap instead of passing through the filter screen 5.

[0040] Filter 5 is made of metal.

[0041] The filter screen 5 of the metal product can extend its service life.

[0042] In practical use, the sealing gasket 2, which is attached to the lower end of the filler body 1, is placed on the plate to be welded. A protective gas storage device is connected externally through the connector 31, and protective gas is filled into the filler body 1 through the connector 31. The partition 32 fixed inside the filler body 1 divides the interior of the filler body 1 into two parts. The upper space of the partition 32 can stabilize the flow of the newly filled protective gas. Then, the protective gas enters the lower layer of the filler body 1 through the through holes 33 opened on the partition 32. Since the guide plates 34 are arranged in an alternating manner, the gas can be guided by the guide plates 34. Finally, the gas passes through the filler body. After the exhaust gas is discharged through the vent 35 on the side of the device body 1, it is blown towards the weld seam, thereby protecting the weld seam with protective gas. The guide plate 34 at the lower end of the partition plate 32 can prevent a large amount of air from flowing back into the interior of the filler body 1 through the exhaust vent 35, which would result in a large concentration difference of protective gas and thus affect the protection of the weld seam by the protective gas. Some of the backflowing gas can be filtered by the filter screen 5 to remove impurities. When the filter screen 5 needs to be removed, simply push the moving block 6 to slide it into the mounting groove 7 to release the restriction on the filter screen 5. At this time, the filter screen 5 can be removed by moving the filter screen 5.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weld protection device, comprising a filler body (1), characterized in that, A sealing gasket (2) is fixedly attached to the lower end of the filler body (1), and a protective mechanism (3) for protecting the weld is provided on the filler body (1). The protective mechanism (3) includes a connector (31), a partition (32), a through hole (33), a guide plate (34), and an exhaust hole (35). The connector (31) is fixedly sleeved on the upper end of the filler body (1). The partition (32) is fixedly connected to the inner wall of the filler body (1). The through hole (33) is opened in the partition (32). The guide plate (34) is fixedly connected to the inner wall of the filler body (1). The exhaust hole (35) is opened on the side wall of the filler body (1). The partition (32) can divide the interior of the filler body (1) into two chambers. The connector (31) is located in the upper chamber. The through hole (33) is located on the partition (32) and away from the connector (31). The guide plate (34) is located in the lower chamber and away from the through hole (33). The exhaust hole (35) is located in the lower chamber and away from the through hole (33).

2. The weld protection device according to claim 1, characterized in that, The lower ends of the guide plate (34) and the partition plate (32) are in contact, and the number of guide plates (34) is multiple and distributed in an interlaced array.

3. The weld protection device according to claim 1, characterized in that: A fixing block (4) is fixedly connected to the inner wall of the exhaust hole (35), a filter screen (5) is in contact with the fixing block (4), and a moving block (6) is slidably connected to the filter screen (5).

4. The weld protection device according to claim 1, characterized in that, The filler body (1) has an installation groove (7) inside, and a guide rod (8) is fixedly connected inside the installation groove (7). A spring (9) is sleeved on the outside of the guide rod (8).

5. A weld protection device according to claim 4, characterized in that, One end of the spring (9) is fixedly connected to the movable block (6), and the other end of the spring (9) is fixedly connected to the mounting groove (7).

6. A weld protection device according to claim 3, characterized in that, The movable block (6) is slidably connected to the outside of the guide rod (8), and the movable block (6) is slidably connected to the mounting groove (7).

7. A weld protection device according to claim 4, characterized in that: The shape of the mounting groove (7) is consistent with the side shape of the movable block (6).

8. A weld protection device according to claim 3, characterized in that, The filter screen (5) is made of metal.

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