Welding protection device

Abstract

The utility model relates to the technical field of welding, in particular to a welding protection device. The welding protection device comprises a welding cover body and a collecting device. The welding cover body is provided with a welding cavity, the collecting device is provided with a collecting cavity, and the collecting cavity communicates with the welding cavity. The collecting device further comprises a pipeline, a sucking pump and a filter screen. The pipeline is arranged on one side of the collecting device and communicated with the collecting cavity, and the sucking pump is connected with the pipeline. The filter screen is installed in the collecting cavity and divides the collecting cavity into a waste residue collecting cavity and a smoke dust collecting cavity, the sucking pump can suck waste residues and smoke dust generated by the welding cavity into the collecting cavity, the waste residues and the smoke dust entering the collecting cavity are separated through the filter screen, and the separated waste residues enter the waste residue collecting cavity. And the separated smoke dust enters the smoke dust collecting cavity. The waste residues and the smoke dust are collected in a classified mode, the waste residues and the smoke dust can be conveniently treated in the follow-up process, a new device does not need to be additionally arranged for separating the waste residues and the smoke dust, and the practicability of the whole device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding protection device. Background Art

[0002] Welding, also known as welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. There are many sources of energy for modern welding, including gas flame, arc, laser, electron beam, friction and ultrasound. A lot of smoke and high-temperature waste slag will be released during the welding operation. Inhalation of smoke and dust will cause damage to human health, and high-temperature waste slag is also easy to splash everywhere and cause harm to the welder. In addition, the existing technology cannot classify and collect high-temperature waste slag and smoke during the welding process, which will cause environmental pollution during the welding process. Utility Model Content

[0003] In order to solve the problem in the prior art that smoke and high-temperature waste slag easily generated during welding cannot be classified and collected, thus causing environmental pollution during welding, the utility model provides a welding protection device.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a welding protection device, including a welding cover body and a collecting device, the welding cover body is provided with a welding cavity, and a through hole is provided on the side wall of the welding cover body, and the through hole is connected to the welding cavity; the collecting device is detachably installed on a side of the welding cover body where the through hole is provided, the collecting device is provided with a collecting cavity, and the collecting cavity is connected to the welding cavity through the through hole; the collecting device also includes a pipeline, an air pump and a filter, and the pipeline is arranged on the collecting device away from the through hole On one side of the through hole, the pipe is connected to the collecting chamber, and the vacuum pump is connected to the pipe; the filter is installed in the collecting chamber, and the filter faces the through hole one, so that the filter can separate the collecting chamber into a waste slag collecting chamber and a smoke dust collecting chamber, one end of the waste slag collecting chamber is connected to the welding chamber, and the other end of the waste slag collecting chamber is connected to the smoke dust collecting chamber through the filter; the waste slag and smoke dust entering the collecting chamber can be separated by the filter, and the separated waste slag enters the waste slag collecting chamber, and the separated smoke dust enters the smoke dust collecting chamber.

[0005] As a further improvement of the above scheme, a connecting plate is provided in the waste slag collection chamber, one end of the connecting plate is flush with the bottom plate of the welding body, and the other end of the connecting plate is connected to the filter net. The connecting plate is able to divide the waste slag collection chamber into a separation area and a collection area, and the waste slag and smoke entering the waste slag collection chamber are separated in the separation area, the separated waste slag enters the collection area, and the separated smoke enters the smoke collection chamber.

[0006] As a further improvement of the above scheme, the connecting plate includes a fixed plate and a sliding plate, the fixed plate is fixed to the inner wall of the collecting device, one end of the sliding plate slides in the fixed plate, and the other end of the sliding plate is inserted into the filter net, and the separation area and the collection area can be connected or separated by sliding the sliding plate.

[0007] As a further improvement of the above scheme, a sliding rod is provided on one side of the sliding plate, and a sliding groove is provided on the side wall of the collecting device, the sliding groove faces the sliding rod, one end of the sliding rod is connected to the sliding plate, and the other end of the sliding rod extends out of the sliding groove.

[0008] As a further improvement of the above scheme, the collection area is provided with a collection box 1, and the collection box 1 is slidably installed in the collection area; the smoke and dust collection chamber is provided with a collection box 2, and the collection box 2 is slidably installed in the smoke and dust collection chamber.

[0009] As a further improvement of the above solution, the filter screen is detachably mounted on the collecting device, a second slide groove is provided on the collecting device, a slider is provided on the filter screen, and the slider is slidably mounted in the second slide groove.

[0010] As a further improvement of the above solution, a slot is provided on the welding cover body, and an insert block is provided on the collecting device, and the welding cover body and the collecting device are connected by inserting the insert block into the slot.

[0011] As a further improvement of the above solution, two through holes 2 are provided on the welding cover body, and the two through holes 2 are symmetrically arranged on both sides of the through hole 1.

[0012] As a further improvement of the above solution, a cover plate is provided on the welding cover body, and the cover plate is arranged on a side wall of the welding cover body symmetrical to the through hole, and the cover plate is rotatably mounted on the side wall of the welding body.

[0013] Furthermore, a handle 1 is provided on the cover plate, and the handle 1 is suitable for driving the cover plate to open or close the welding cavity.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) By providing a collection device, the collection device is connected to the welding hood body, so that the waste slag and smoke entering the collection chamber can be separated through the filter screen. The separated waste slag enters the waste slag collection chamber, and the separated smoke enters the smoke collection chamber. The waste slag and smoke are classified and collected, which is convenient for the subsequent treatment of the waste slag and smoke separately, without adding a new device to separate the waste slag and smoke, thereby improving the practicality of the entire device.

[0016] (2) By setting up a welding cover body, the welding cover body can cover the weldment in the welding chamber, thereby providing a relatively independent welding environment for the weldment, so that the waste slag and smoke generated during the welding process will not spread to the external environment, thereby protecting the external environment during welding.

[0017] (3) The welding hood body of the utility model is a sealed structure, so that the welding process will not cause harm to the safety of the welder. At the same time, the waste slag and smoke generated during the welding process will neither cause harm to the welder nor pollute the surrounding environment.

[0018] (4) By setting up the collection box 1 and the collection box 2, the collection box 1 can collect the separated waste residues in a unified manner, and the collection box 2 can collect the separated smoke dust in a unified manner, which is convenient for the subsequent treatment of the waste residues and smoke dust separately. For subsequent treatment, it is only necessary to pull out the collection box 1 and pour the waste residue in the collection box 1 into the waste residue treatment device. Pull out the collection box 2 and pour the smoke dust collected in the collection box 2 into the smoke dust treatment device for treatment, which simplifies the subsequent treatment steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of the welding protection device provided by the utility model.

[0020] Figure 2 It is a schematic diagram of the welding hood body and the collecting device in the present invention in a separated state.

[0021] Figure 3 It is a schematic diagram of the welding cover body and the collecting device in the present invention when they are separated from each other at another viewing angle.

[0022] Figure 4 This is a top view of the welding protection device provided by the utility model.

[0023] Figure 5 For this utility model Figure 4 Cross-sectional view along AA.

[0024] Figure 6 For this utility model Figure 5 A magnified schematic diagram of point B in the middle.

[0025] Figure 7 This is a stereoscopic view of the welding protection device provided by the utility model from another viewing angle.

[0026] In the figure: 1. welding hood body; 11. welding chamber; 12. through hole 1; 13. slot; 14. through hole 2; 15. cover plate; 151. handle 1; 2. collecting device; 21. pipe; 22. filter screen; 221. slider; 231. connecting plate; 232. separation area; 233. collecting area; 234. fixing plate; 235. sliding plate; 236. sliding rod; 237. collecting box 1; 238. collecting box 2; 24. smoke collecting chamber; 25. slide groove 1; 26. plug. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] In the description of the present utility model, it should be noted that for directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions and positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present utility model. The terms "first", "second" and the like in the specification and claims of the present utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. The terms "including" and "having" in the specification and claims of the present utility model and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device including a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Please refer to Figure 1 An embodiment of the utility model provides a welding protection device, which includes a welding cover body 1 and a collecting device 2, and the welding device is detachably mounted on the welding cover body 1.

[0030] Please refer to Figure 2 and Figure 3In this embodiment, a slot 13 is provided on the welding cover body, and an insert block 26 is provided on the collecting device 2. The welding cover body and the collecting device 2 are connected by inserting the insert block 26 into the slot 13. The welding cover body and the collecting device 2 can be quickly assembled or disassembled by providing the insert block 26 and the slot 13, and the entire assembly and disassembly process is simple and convenient.

[0031] The welding cover body 1 can be a rectangular hollow structure. The upper end surface of the welding cover body 1 is made of a transparent and high temperature resistant material, which can be quartz glass. It is set as a transparent structure so that the welding situation in the welding cavity 11 can be directly observed through the upper end surface. The high temperature resistant material can adapt to the high temperature generated during the welding process.

[0032] Please refer to Figure 2 The welding hood body 1 is provided with a welding cavity 11, and the welding cavity 11 is used to place the weldment, so that the weldment can be welded in the welding cavity 11. By setting the welding hood body 1, the welding hood body 1 can cover the weldment in the welding cavity 11, thereby providing a relatively independent welding environment for the weldment, so that the waste slag and smoke generated during the welding process will not spread to the external environment, and the external environment during welding is protected. A through hole 12 is provided on the side wall of the welding hood body 1, and the through hole 12 is connected to the welding cavity 11. The collecting device 2 is detachably mounted on the side of the welding hood body 1 where the through hole 12 is provided. It is detachably arranged, and only the corresponding parts need to be replaced when it is damaged. In this embodiment, the area of ​​the side wall of the collecting device 2 on the side opposite to the pipe 21 is larger than the area of ​​the through hole 12, and the side wall is also provided with an opening, and the opening is aligned with the through hole 12, so that the waste slag and smoke generated in the welding cavity 11 can all enter the collecting cavity. In addition, it can also be disassembled and placed separately when not in use. The collecting device 2 is provided with a collecting chamber, which is connected to the welding chamber 11 through a through hole 12. The waste slag and smoke generated in the welding chamber 11 can enter the collecting chamber through the through hole, and the collecting chamber can collect the waste slag and smoke generated during the welding process.

[0033] Please refer to Figure 2 and Figure 3 The welding hood body 1 is provided with two through holes 14, which are symmetrically arranged on both sides of the through hole 12. The purpose of providing the two through holes 14 is that during the actual welding process, the welder can reach into the welding cavity 11 through the two through holes 14 by wearing welding gloves, so that the weldment can be welded in the welding cavity 11.

[0034] Please refer to Figure 3The welding hood body 1 is provided with a cover plate 15, which is arranged on the side wall of the welding hood body 1 facing the through hole 12, and the cover plate 15 is rotatably mounted on the side wall of the welding hood body 1. By providing the cover plate 15, the welding chamber 11 can be opened by rotating the cover plate 15, so that the weldment and welding tools and other devices can be placed in the welding chamber 11 from the cover plate 15, and then the welder can put his hand into the welding chamber 11 through the two through holes 2 14 to control the welding tools to weld the weldment, and the whole welding process is carried out in the welding chamber 11. Since the welding hood body 1 is a sealed structure, the safety of the welder will not be harmed during the welding process, and the waste slag and smoke generated during the welding process will neither cause damage to the welder nor pollute the surrounding environment.

[0035] Please refer to Figure 3 The cover plate 15 is provided with a handle 151, which is suitable for driving the cover plate 15 to open or close the welding chamber 11. By providing the handle 151, it is convenient to quickly open the cover plate 15, so as to put the weldment or welding tool into the welding chamber 11 or take it out from the welding chamber 11.

[0036] Two protrusions are also provided in the welding cover body 1. The cross-section of the two protrusions may be a right-angled triangle structure. The two protrusions are symmetrically arranged on both sides of the through hole 12. Each protrusion is fixedly connected to the inner wall of the welding cover body 1. The inclined surface of the protrusion is inclined from one side of the cover plate 15 to one side of the through hole 12. By providing the protrusions, the waste residue and smoke generated in the welding chamber 11 can be guided so that the waste residue and smoke can quickly enter the collection chamber.

[0037] Please refer to Figures 4 to 6The collecting device 2 also includes a pipe 21, an air pump (not shown) and a filter 22. The pipe 21 is arranged on the side of the collecting device 2 away from the through hole 12. The pipe 21 is connected to the collecting chamber, and the air pump is connected to the pipe 21. The air pump can evacuate the collecting chamber so that the waste slag and smoke generated by the welding chamber 11 can enter the collecting chamber. By setting up the collecting device 2, the waste slag and smoke generated by the welding chamber 11 can be collected, and the smoke in the welding process in the prior art can be prevented from being easily inhaled into the human body and the high-temperature waste slag will not splash everywhere and cause damage to the human body. In addition, by setting up the collecting device 2, the smoke and waste slag can also be collected to prevent them from entering the external environment, thereby protecting the external environment such as the welding room (or welding workshop). The filter screen 22 is installed in the collection chamber, and the filter screen 22 faces the through hole 12. The filter screen 22 can separate the collection chamber into a waste residue collection chamber and a smoke dust collection chamber 24. One end of the waste residue collection chamber is connected to the welding chamber 11, and the other end of the waste residue collection chamber is connected to the smoke dust collection chamber 24 through the filter screen 22. The waste residue and smoke dust entering the collection chamber can be separated through the filter screen 22. By setting the filter screen 22, the waste residue and smoke dust entering the collection chamber can be separated, so that the separated waste residue enters the waste residue collection chamber, and the separated smoke dust enters the smoke dust collection chamber 24. The waste residue and smoke dust can be collected by classification, which is convenient for the subsequent separate treatment of the waste residue and smoke dust, without adding a new device to separate the waste residue and smoke dust, thereby improving the practicality of the entire device.

[0038] Please refer to Figures 5 and 6 A connecting plate 231 is provided in the waste slag collection chamber, one end of which is flush with the bottom plate of the welding cover body 1. The flush setting facilitates the waste slag and smoke generated by welding in the welding chamber 11 to enter the collection chamber under the action of the vacuum pump. The other end of the connecting plate 231 is connected to the filter screen 22, and the connecting plate 231 can separate the waste slag collection chamber into a separation area 232 and a collection area 233, so that the waste slag and smoke entering the waste slag collection chamber can be separated in the separation area 232. By providing the connecting plate 231, the connecting plate 231 can not only guide the waste slag and smoke in the welding chamber 11 to the collection chamber, but also can cooperate with the filter screen 22 to separate the waste slag and smoke. Since the waste slag particles are relatively large and the smoke particles are relatively small, the waste slag cannot pass through the filter screen 22, while the smoke can pass through the filter screen 22, so that the filter screen 22 can separate the waste slag and smoke. The separated waste residue can enter the collection area 233, and the collection area 233 can collect the separated waste residue in a unified manner. The separated smoke dust can enter the smoke dust collection chamber 24, and the smoke dust collection chamber 24 can collect the separated smoke dust in a unified manner.

[0039] Please refer to Figure 6The connecting plate 231 includes a fixed plate 234 and a sliding plate 235. The fixed plate 234 is fixed to the inner wall of the collecting device 2. One end of the sliding plate 235 slides in the fixed plate 234, and the other end of the sliding plate 235 is inserted into the filter 22. By sliding the sliding plate 235, the separation area 232 and the collection area 233 can be connected or separated. When the waste residue and smoke are separated, one end of the sliding plate 235 is in the fixed plate 234, and the other end of the sliding plate 235 is inserted into the filter 22. Thus, the sliding plate 235 can separate the separation area 232 and the collection area 233, so that the smoke entering the separation area 232 will not enter the collection area 233. After the separation is completed, the sliding plate 235 is slid so that the end of the sliding plate 235 inserted into the filter 22 moves to the fixed plate 234. At this time, the sliding plate 235 does not separate the separation area 232 and the collection area 233. At the same time, since one end of the sliding plate 235 is inserted into the fixed plate 234, the thickness of the fixed plate 234 is greater than that of the sliding plate 235, and the sliding plate 235 is close to one side of the filter screen 22, and due to the action of the vacuum pump during separation, the waste residue will also accumulate on the sliding plate 235. By sliding the sliding plate 235 toward the fixed plate 234, the fixed plate 234 can push all the waste residue on the sliding plate 235 into the collection area 233 below, so that the collection area 233 can collect the separated waste residue, and the entire collection process is simple to operate.

[0040] Please refer to Figure 2 and Figure 7 In this embodiment, a slide bar 236 is provided on one side of the slide plate 235, and a slide groove 25 is provided on the side wall of the collecting device 2, and the direction of the slide groove 25 points from the through hole 12 to the pipe 21. The slide groove 25 faces the slide bar 236, one end of the slide bar 236 is connected to the slide plate 235, and the other end of the slide bar 236 extends out of the slide groove 25. In actual operation, the slide bar 236 can slide in the slide groove 25, so that the slide bar 236 drives the slide plate 235 to slide, thereby realizing that the slide plate 235 connects or separates the separation area 232 and the collection area 233.

[0041] Please refer to Figure 3 and Figure 5 The collection area 233 is provided with a collection box 237, which is slidably installed in the collection area 233. It can be understood that the installation method of the collection box 237 in the collection area 233 in this embodiment is any sliding installation method in the prior art that can realize the collection box 237 being pulled out of the collection area 233. The collection box 237 can collect the waste residue in the separation area 232, and if the waste residue needs to be processed in the next step, it only needs to pull the collection box 237 out of the collection area 233, and then pour out the waste residue collected in the collection box 237.

[0042] Please refer to Figure 3 and Figure 5 , a second collection box 238 is provided in the smoke collection chamber 24, and the second collection box 238 is slidably installed in the smoke collection chamber 24. It can be understood that the installation method of the second collection box 238 in the smoke collection chamber 24 in this embodiment is any sliding installation method in the prior art that can realize the collection box 238 being pulled out of the smoke collection chamber 24. The second collection box 238 can collect the smoke in the separation area 232. In the actual operation process, some adsorbents (such as activated carbon, desulfurizer, etc.) that help the smoke sedimentation during welding can also be added to the second collection box 238, which can accelerate the speed of smoke sedimentation. At the same time, if the waste residue needs to be processed in the next step, it is only necessary to pull the second collection box 238 out of the smoke collection chamber 24, and then pour out the smoke collected in the second collection box 238.

[0043] It is understandable that both collecting box 1 237 and collecting box 2 238 may be provided with handle 2 (not shown in the figure), by which collecting box 1 237 can be quickly pulled out of the collecting area 233 or collecting box 2 238 can be quickly pulled out of the smoke collecting chamber 24.

[0044] Please refer to Figure 6 , the filter screen 22 is detachably mounted on the collection device 2. The detachable mounting method facilitates cleaning of the filter screen 22 or replacement of the filter screen 22 with different aperture sizes. In this embodiment, the filter screen 22 can be detachably mounted in the following manner. A second slideway is provided on the collection device 2, and a slider 221 is provided on the filter screen 22, and the slider 221 is slidably mounted in the slideway. By providing the slider 221 and the second slideway, the filter screen 22 can be quickly mounted on the collection device 2.

[0045] In this embodiment, a handle three may be provided on the filter screen 22, and the filter screen 22 can be quickly removed from the collecting device 2 by providing the handle three, so that the filter screen 22 can be cleaned or replaced.

[0046] It is understandable that the filter screen 22 in this embodiment can be a filter screen 22 of a whole plate-like structure. The filter screen 22 in this embodiment can also include a filter screen 22 body and a mounting plate, the mounting plate is mounted below the filter screen 22 body, and the height of the mounting plate can be set to be flush with the upper bottom surface of the connecting plate 231. One end of the filter screen 22 body close to the mounting plate is plugged into the mounting plate.

[0047] The above describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A welding protection device, characterized in that: It includes: A welding cover body (1), wherein the welding cover body (1) is provided with a welding cavity (11), and a through hole (12) is provided on a side wall of the welding cover body (1), wherein the through hole (12) is connected to the welding cavity (11); A collecting device (2), wherein the collecting device (2) is installed on a side of the welding cover body (1) on which a through hole (12) is provided, and the collecting device (2) is provided with a collecting chamber, and the collecting chamber is connected to the welding chamber (11) through the through hole (12); the collecting device (2) also includes a pipeline (21), an air pump and a filter (22), wherein the pipeline (21) is arranged on a side of the collecting device (2) away from the through hole (12), the pipeline (21) is connected to the collecting chamber, and the air pump is connected to the filter (22). The pipe (21) is connected to the filter screen (22); the filter screen (22) is installed in the collection chamber, the filter screen (22) faces the through hole (12), and the filter screen (22) can separate the collection chamber into a waste slag collection chamber and a smoke dust collection chamber (24); one end of the waste slag collection chamber is connected to the welding chamber (11), and the other end of the waste slag collection chamber is connected to the smoke dust collection chamber (24) through the filter screen (22); the waste slag and smoke dust entering the collection chamber can be separated by the filter screen (22).

2. The welding protection device according to claim 1, characterized in that: A connecting plate (231) is provided in the waste slag collection chamber, one end of the connecting plate (231) is flush with the bottom plate of the welding cover body (1), and the other end of the connecting plate (231) is connected to the filter screen (22). The connecting plate (231) can separate the waste slag collection chamber into a separation area (232) and a collection area (233), so that the waste slag and smoke entering the waste slag collection chamber can be separated in the separation area (232).

3. The welding protection device according to claim 2, characterized in that: The connecting plate (231) includes a fixed plate (234) and a sliding plate (235), wherein the fixed plate (234) is fixed to the inner wall of the collecting device (2), one end of the sliding plate (235) slides in the fixed plate (234), and the other end of the sliding plate (235) is inserted into the filter net (22), and the separation area (232) and the collecting area (233) can be connected or separated by sliding the sliding plate (235).

4. The welding protection device according to claim 3, characterized in that: A sliding rod (236) is provided on one side of the sliding plate (235), and a sliding groove (25) is provided on the side wall of the collecting device (2), wherein the sliding groove (25) faces the sliding rod (236), one end of the sliding rod (236) is connected to the sliding plate (235), and the other end of the sliding rod (236) extends out of the sliding groove (25).

5. The welding protection device according to claim 2, characterized in that: The collection area (233) is provided with a collection box 1 (237), and the collection box 1 (237) is slidably installed in the collection area (233); the smoke and dust collection chamber (24) is provided with a collection box 2 (238), and the collection box 2 (238) is slidably installed in the smoke and dust collection chamber (24).

6. The welding protection device according to claim 1, characterized in that: The filter screen (22) is detachably mounted on the collection device (2); a second slide groove is provided on the collection device (2); a slider (221) is provided on the filter screen (22); and the slider (221) is slidably mounted in the second slide groove.

7. The welding protection device according to claim 1, characterized in that: The welding cover body (1) is provided with a slot (13), the collecting device (2) is provided with an insert block (26), and the insert block (26) is slidably installed in the slot (13).

8. The welding protection device according to claim 1, characterized in that: The welding cover body (1) is provided with two second through holes (14), and the two second through holes (14) are symmetrically arranged on both sides of the first through hole (12).

9. The welding protection device according to claim 1, characterized in that: The welding cover body (1) is provided with a cover plate (15), and the cover plate (15) is arranged on the side wall of the welding cover body (1) facing the through hole 1 (12), and the cover plate (15) is rotatably mounted on the side wall of the welding cover body (1).

10. The welding protection device according to claim 9, characterized in that: The cover plate (15) is provided with a handle 1 (151), and the handle 1 (151) is suitable for driving the cover plate (15) to open or close the welding chamber (11).

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