A spark receiving device

Abstract

This utility model provides a spark-catching device, belonging to the field of spark-catching hopper technology. It includes a receiving component for receiving sparks and a connecting component suspending the receiving component below a waterstop. The receiving component or connecting component is provided with a guiding structure. When the receiving component and connecting component move within the reinforcing cage, the guiding structure guides the receiving component to move along the length of the waterstop. This utility model, by setting side baffles and a receiving hopper, blocks welding slag and other debris generated during welding through vertical and horizontal sections at close range, reducing slag splashing and improving the slag blocking rate. The blocked slag falls into the receiving hopper. After blocking, due to the slender shape of the side baffles and the receiving hopper, they can be removed from inside the reinforcing cage and hung at the next welding location, making them more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of spark receiving technology, and in particular to a spark receiving device. Background Technology

[0002] Spark catchers are indispensable safety tools in welding operations. They are generally made of high-temperature resistant metal materials such as galvanized iron sheets and iron plates, and some are even lined with fireproof rock wool to enhance fire resistance. They come in various shapes; square and rectangular shapes are suitable for most flat welding surfaces, while fan-shaped shapes are better suited for welding circular or arc-shaped structures. The basic structure is a bucket-shaped structure formed by a base plate and side plates. Some are also equipped with fixing rings, safety ropes, and other components for secure installation below the welding position. During welding, the spark catcher plays a crucial role. The high-temperature sparks and slag generated during welding fly everywhere, which can easily cause fires or even explosions if they come into contact with flammable materials. The spark catcher can reliably catch these dangerous materials, greatly reducing the risk of fire and explosion. It also prevents high-temperature slag from splashing onto workers, avoiding burns and other accidental injuries. Furthermore, it prevents slag from damaging construction equipment, scrapping materials, or contaminating the ground, keeping the construction site clean and ensuring the normal operation of equipment. Spark catchers have a wide range of applications, from steel structure installation and curtain wall welding in building construction to parts manufacturing in machinery manufacturing. Welding hoppers are used in various applications, from component welding to shipbuilding hull welding. They come in a variety of types: integrated structures are simple and stable but inconvenient to transport; modular designs offer high flexibility and facilitate component replacement; and foldable designs are easy to carry and store. They can be flexibly selected according to different needs, ensuring the safety of welding operations. In building construction, after the rebar is tied, waterstops need to be installed at the junction of the basement exterior wall and the foundation slab, as well as at construction joints and post-pouring strips on the exterior wall. The waterstops are generally located 300-500mm above the top surface of the foundation slab to prevent groundwater from seeping into the interior through the gaps between the exterior wall and the foundation slab. When a long waterstop is needed, it is usually made by splicing multiple waterstops. During splicing, the connecting ends of the waterstops are aligned first. Then, the welding hopper is placed at the bottom of the weld joint, and the vertical weld joint is welded using electric welding. This process is repeated to connect the waterstops together. After the first weld is completed, the welding hopper is moved to the next location, and welding continues after the hopper is placed.

[0003] Waterstops are typically installed inside the reinforced concrete cage of the wall after it has been tied. The width of the spark catcher is slightly smaller than the width inside the reinforced concrete cage. Therefore, although the spark catcher can move inside the reinforced concrete cage, the corners of the spark catcher will collide with the inside of the reinforced concrete cage during the movement, making it difficult for the spark catcher to move smoothly inside the reinforced concrete cage. There is a need to further optimize the convenience of the spark catcher's movement. Therefore, this application provides a spark catcher device to meet the needs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a spark receiving device to solve the problem that the spark receiving bucket is difficult to move smoothly inside the steel cage.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A spark receiving device is provided for receiving a spark receiving component and a connecting component suspending the receiving component below a waterstop. The receiving component or connecting component is provided with a guiding structure. When the receiving component and the connecting component move inside the reinforcing cage, the guiding structure guides the receiving component to move along the length direction of the waterstop.

[0007] Preferably, the connecting component includes two side baffles, with a welding channel formed between the two side baffles; the guiding structure includes an upper sealing plate fixed to the top of the two side baffles; a snap-fit ​​block is fixed to the top of the side baffles and snaps onto the surface of the waterstop; the receiving component includes a receiving hopper disposed at the bottom of the two side baffles.

[0008] Preferably, the side baffle is composed of a vertical part and a horizontal part, the vertical part is attached to the surface of the waterstop, and the vertical part and the horizontal part are arranged perpendicularly to each other.

[0009] Preferably, a magnetic block is embedded in the contact surface between the snap-fit ​​block and the waterstop, and the magnetic block is magnetically attracted to the surface of the waterstop.

[0010] Preferably, the receiving hopper is rotatably connected to the bottom of the vertical part via a rotating shaft. A magnetic block two is fixed on the side of the receiving hopper near the horizontal part, and a limiting plate is fixed at the end of the receiving hopper. When the waterstop is welded to the joint above the receiving hopper, the magnetic block two is attached to the surface of the horizontal part, and the limiting plate is away from the vertical part. When the waterstop is welded to the bottom position, the receiving hopper rotates downward via the rotating shaft, the magnetic block two disengages from the waterstop, and the limiting plate is attached to the surface of the vertical part.

[0011] Preferably, a connecting column is fixed between the two vertical parts, and after the receiving hopper rotates downward by the rotating shaft, the limiting plate is attached to the surface of the connecting column.

[0012] Preferably, the bottom of the receiving hopper is curved, and the curved surface bends downward.

[0013] Preferably, the receiving component includes a base plate with bent sections on opposite sides corresponding to the length of the waterstop. Two hanging holes are provided on the bent sections, and hooks are attached to these holes. The same chain is attached to the two hooks at the same bend position. The hooks suspend the base plate and rotatably connect it to two side sealing plates. The two side sealing plates are symmetrically arranged. When the two side sealing plates are opened by flipping, they can cooperate with the bent sections under the pressure of the reinforcing cage to form an open box. The guiding structure includes inclined sides on opposite sides of the side sealing plates near the bent sections, with the end of the side sealing plate furthest from the base plate shorter than the end of the side sealing plate closest to the base plate. On one side, a guide plate is set at the position of the inclined side away from the bottom plate. The two guide plates on the same side sealing plate are arranged symmetrically in a figure-eight shape. When in use, the bottom plate is located below the welding position of the waterstop, with the bent section facing the direction of the waterstop. Two chains are hung on the waterstop to be welded, and the weld is located between the two chains. After the two side sealing plates are flipped open, they are in a figure-eight shape with their openings facing the waterstop under the support of the reinforcing cage. The opening of the box formed by the flipped-open side sealing plates and the bent section faces the waterstop. The figure-eight opening formed by the two guide plates on the same side sealing plate is tilted towards the waterstop. The end of the guide plate away from the inclined side is located inside the reinforcing cage.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] In the above scheme, by setting up side baffles and receiving hoppers, the welding slag and other debris generated during welding are blocked at close range by the vertical and horizontal parts, reducing slag spatter and improving the slag blocking rate. The blocked slag falls into the receiving hopper. After blocking, the side baffles and receiving hopper are elongated in shape, making them easy to remove from the inside of the steel cage. After removal, they can be hung at the next welding position, making them more convenient to use.

[0016] By setting up magnetic block two and limiting plate, when welding to the waterstop near the bottom, the receiving hopper is rotated downward by the rotating shaft and limited by the limiting plate. After the receiving hopper is opened, it is convenient to weld the bottom position of the waterstop. At the same time, the receiving hopper is more convenient to clean when it is open. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of Example 1;

[0019] Figure 2 This is a side view of an embodiment;

[0020] Figure 3 This is a three-dimensional structural diagram of the baffle on one side of the embodiment;

[0021] Figure 4 This is a three-dimensional structural diagram of the material receiving hopper in Example 1;

[0022] Figure 5 This is a three-dimensional structural diagram of the receiving hopper in the downward flipped state in Embodiment 1;

[0023] Figure 6 This is a schematic diagram of the overall three-dimensional structure of Example 2.

[0024] [Figure Labels]

[0025] 1. Side guard strip; 2. Vertical part; 3. Horizontal part; 4. Top sealing plate; 5. Connecting column; 6. Snap-fit ​​block; 7. Magnetic block one; 8. Receiving hopper; 9. Magnetic block two; 10. Limiting plate; 11. Base plate; 12. Side sealing plate; 13. Bevel; 14. Guide plate; 15. Hanging hole; 16. Hook; 17. Chain.

[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0027] The spark arrestor provided by the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0028] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0029] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0030] like Figures 1-5 As shown, Embodiment 1 of this utility model provides a spark receiving device, including a receiving component for receiving sparks and a connecting component for suspending the receiving component below the waterstop. The receiving component or the connecting component is provided with a guiding structure. When the receiving component and the connecting component move inside the reinforcing cage, the guiding structure guides the receiving component to move along the length direction of the waterstop.

[0031] like Figures 1-5 As shown in this embodiment, the connecting component includes two side baffles 1, with a welding channel formed between the two side baffles 1. The guiding structure includes an upper sealing plate 4 fixed to the top of the two side baffles 1, and a snap-fit ​​block 6 fixed to the top of the side baffles 1, which snaps onto the surface of the waterstop. The receiving component includes a receiving hopper 8 set at the bottom of the two side baffles 1. The upper sealing plate 4 is fixed to the top of the side baffles 1, which on the one hand can block debris that may fall from above, preventing it from interfering with the welding operation or mixing with high-temperature welding slag and causing safety hazards; on the other hand, it enhances the connection strength between the two side baffles 1, improves the stability of the overall structure, and prevents the side baffles 1 from shaking or deforming during use. The receiving hopper 8 at the bottom is used to receive the blocked welding slag, realizing the centralized collection of welding slag. The snap-fit ​​block 6 at the top of the side baffles 1 can hang on the surface of the waterstop, providing a convenient installation method for the receiving hopper, allowing the receiving hopper to be quickly fixed to the welding position and ensuring the firmness of the installation, which facilitates subsequent welding operations.

[0032] like Figures 1-3 As shown, in this embodiment, the side baffle 1 consists of a vertical part 2 and a horizontal part 3. The vertical part 2 is attached to the surface of the waterstop. The vertical part 2 and the horizontal part 3 are arranged perpendicularly to each other, and the horizontal part 3 is arranged perpendicularly to the vertical part 2. The two work together to form an "L"-shaped structure, which can not only block horizontally splashing welding slag, but also form a three-dimensional blocking space together with the vertical part 2, which greatly improves the blocking effect of welding slag, reduces the range of welding slag splashing, and provides a safer protective environment for welding operations. At the same time, it can also prevent welding slag from splashing onto construction workers and causing burns. In addition, the "L"-shaped side baffle 1 is more convenient to clean afterward because the surface it is attached to with the waterstop is open.

[0033] like Figures 1-3 As shown in this embodiment, a magnetic block 7 is embedded in the contact surface between the snap-fit ​​block 6 and the waterstop. The magnetic block 7 is magnetically attracted to the surface of the waterstop. The setting of the magnetic block 7 allows the snap-fit ​​block 6 and the waterstop to be connected by magnetic attraction. Compared with the traditional buckle or bolt fixing method, the operation is simpler and faster. The construction personnel only need to hang the fire-catching bucket on the waterstop through the snap-fit ​​block 6, and the magnetic block 7 can be automatically attracted. There is no need for complicated installation tools and operation steps, which greatly saves installation time. At the same time, the stable fixing effect provided by magnetic attraction can ensure that the fire-catching bucket will not loosen or fall off due to vibration, collision or other factors during the welding process, ensuring the stability and safety of the fire-catching bucket in the entire welding operation, and providing a reliable guarantee for the smooth progress of the welding operation.

[0034] like Figures 1-5 As shown, in this embodiment, the receiving hopper 8 is rotatably connected to the bottom of the vertical part 2 via a rotating shaft. A magnetic block 9 is fixed to the side of the receiving hopper 8 near the horizontal part 3. A limiting plate 10 is fixed to the end of the receiving hopper 8. When welding the seam above the receiving hopper 8, the magnetic block 9 adheres to the surface of the horizontal part 3, and the limiting plate 10 moves away from the vertical part 2. When welding to the bottom position of the waterstop, the receiving hopper 8 rotates downwards via the rotating shaft, the magnetic block 9 disengages from the waterstop, and the limiting plate 10 adheres to the surface of the vertical part 2. The receiving hopper 8 is rotatably connected to the bottom of the vertical part 2 via the rotating shaft, giving it a flip-up function. When welding the seam above the waterstop... The magnetic block 2 9 fits into the horizontal part 3, keeping the receiving hopper 8 in a horizontal state. This effectively catches the welding slag falling from above, ensuring that the welding slag is collected accurately. When welding to the bottom of the waterstop, the receiving hopper 8 can be rotated downwards by the rotating shaft. At this time, the magnetic block 2 9 disengages from the horizontal part 3, the limiting plate 10 fits into the vertical part 2, and the receiving hopper 8 opens. This not only provides ample space for welding operations at the bottom of the waterstop, facilitating precise operation by the welder, but also makes it easier to clean the welding slag when cleaning the receiving hopper 8, improving cleaning efficiency. At the same time, the limiting plate 10 acts as a limit, ensuring that the receiving hopper 8 rotates to the appropriate angle and remains stable.

[0035] like Figure 3As shown, in this embodiment, a connecting column 5 is fixed between the two vertical parts 2. After the receiving hopper 8 rotates downward by the rotating shaft, the limiting plate 10 is attached to the surface of the connecting column 5. The connecting column 5 is fixed between the two vertical parts 2, which further enhances the structural stability between the two side baffles 1, making the receiving hopper more robust and durable. When the receiving hopper 8 rotates downward, the limiting plate 10 is attached to the surface of the connecting column 5. Compared with being directly attached to the surface of the vertical part 2, the connecting column 5 provides more reliable limiting support, which can better withstand the gravity and external force of the receiving hopper 8 in the open state, ensuring that the receiving hopper 8 remains stable in the open state and preventing it from shaking or rotating at will, thereby providing more stable conditions for the welding of the bottom of the water hose and the cleaning of the receiving hopper 8.

[0036] like Figure 4 As shown in this embodiment, the bottom of the receiving hopper 8 is curved, with the curved surface curving downwards. The curved design of the bottom of the receiving hopper 8 allows the welding slag falling into the receiving hopper 8 to naturally converge towards the center under the action of gravity, avoiding the accumulation of welding slag at the edges and corners of the receiving hopper 8. This design not only facilitates the centralized collection of welding slag and reduces residue, but also makes it easier to clean the welding slag in one go when cleaning the receiving hopper 8, improving cleaning efficiency. At the same time, it can also effectively prevent welding slag from accumulating and hardening at the edges, affecting the subsequent use of the receiving hopper 8, and ensuring that the receiving hopper 8 always maintains good material receiving performance.

[0037] like Figure 6 As shown in Embodiment 2 of this utility model, a spark receiving device includes a base plate 11. The base plate 11 has bent sections on opposite sides along the length of the waterstop. Two hanging holes 15 are provided on the bent sections, and hooks 16 are hung in the hanging holes 15. The same chain 17 is hung on the two hooks 16 at the same bend position. The hooks 16 suspend the base plate 11 and rotatably connect two side sealing plates 12. The side sealing plates 12 can also be hinged to the base plate 11. Two side sealing plates 12 are symmetrically arranged. When the two side sealing plates 12 are flipped open, they can cooperate with the bending section under the resistance of the steel cage to form a box with an opening. The guide structure includes inclined sides 13 on opposite sides of the side sealing plate 12 near the bending section. The end of the side sealing plate 12 away from the bottom plate 11 is shorter than the side of the side sealing plate 12 near the bottom plate 11. A guide piece 14 is provided at the position of the inclined side 13 away from the bottom plate 11. The two guide pieces 14 on the same side sealing plate 12 are symmetrically arranged in a figure-eight shape.

[0038] In use, the base plate 11 is located below the welding position of the waterstop, with the bent section facing the direction of the waterstop. Two chains 17 are hung on the waterstop to be welded, with the weld located between the two chains 17. After the two side sealing plates 12 are flipped open, they form a figure-eight shape with their openings facing the waterstop under the support of the reinforcing cage. The opening of the box formed by the flipped-open side sealing plates 12 and the bent section faces the waterstop. The figure-eight opening formed by the two guide plates 14 on the same side sealing plate 12 is tilted towards the waterstop. The end of the guide plate 14 away from the inclined side 13 is located inside the reinforcing cage. When the chain 17 is moved and the base plate 11 is moved through the hook 16, the weak support strength of the chain 17 causes the suspended base plate 11 to sway and collide with the reinforcing cage as it moves along the length of the waterstop inside the reinforcing cage. The conventionally set side sealing plates 12 are rectangular plates, which will cause them to sway and collide with the reinforcing cage when they collide. When impacted, the material receiving hopper 8 will be resisted by the reinforcing cage, affecting its smooth movement within the cage. This could even cause the side sealing plate 12 on the other side to flip inwards and overlap with the bottom plate 11 after being resisted by the reinforcing cage, affecting the reusability of the receiving hopper 8. Since welders need to wear gloves for welding operations, it is inconvenient to open the folded side sealing plate 12 through the reinforcing cage mesh. However, the inclined surface on the guide plate 14 in this embodiment will contact the reinforcing bars when the bottom plate 11 is in the wrong position, and under the guidance of the reinforcing bars, it will cause the side sealing plate 12 to deflect at a certain angle, preventing the side sealing plate 12 from getting stuck in the reinforcing cage mesh and assisting the bottom plate 11 in correcting its deviation, thus improving the smoothness of the movement of the receiving hopper 8. Furthermore, even if the side sealing plate 12 is rotated into the box under force, it will form an angle with the bottom plate 11 under the support of the guide plate 14, improving the ease of operation for welders to move the side sealing plate 12.

[0039] Working principle: First, the fire-receiving hopper is installed on the waterstop. The magnetic force generated by the snap-fit ​​block 6 on the top of the side baffle 1 and the magnetic block 7 embedded inside it firmly suspends and magnetically attracts the fire-receiving hopper to the surface of the waterstop. This magnetic attraction design is not only simple to operate, but also ensures that the fire-receiving hopper remains stable during the welding process and will not easily shake or shift. After the fire-receiving hopper is installed in place, a regular welding channel is formed between the two side baffles 1, providing precise space for welding operations. At the same time, the upper sealing plate 4 is firmly located at the top, effectively blocking debris that may fall from above, further ensuring the safety of the welding operation environment. At the same time, the upper sealing plate 4 can also improve the structural stability of the two side baffles 1 and prevent the two side baffles 1 from shaking. At this time, the receiving hopper 8 is in the initial state, and the magnetic block 9 on the side near the horizontal part 3 is tightly attached to the surface of the horizontal part 3. The limiting plate 10 is away from the vertical part 2. The entire fire-receiving hopper has a compact structure, which is fully prepared for subsequent welding operations.

[0040] Next, welding begins on the seam above the receiving hopper 8 where the waterstop is located. During the welding process, the vertical part 2 and the horizontal part 3 of the side baffle 1 surround the welding point at close range, effectively blocking the high-temperature welding slag generated during welding. Because the two are vertically set and closely cooperated, the spatter range of the welding slag can be reduced to the greatest extent, greatly improving the blocking rate of welding slag. After the blocked welding slag loses its splashing force, it falls into the receiving hopper 8 below. The bottom of the receiving hopper 8 has a downward curved surface design. This unique shape allows the welding slag to naturally converge towards the center after falling into the receiving hopper 8, avoiding the situation where the welding slag accumulates at the edge and is difficult to clean, ensuring the effective collection of welding slag by the receiving hopper 8.

[0041] When welding to the bottom of the waterstop, the receiving hopper 8 needs to be operated to adapt to the new welding requirements. The worker rotates the receiving hopper 8 downwards using a rotating shaft, causing the magnetic block 2 9 to disengage from the horizontal part 3. As the receiving hopper 8 rotates, it gradually opens until the limiting plate 10 is attached to the surface of the vertical part 2. After the receiving hopper 8 is opened, it provides ample operating space for welding at the bottom of the waterstop, allowing the welder to perform welding operations more conveniently and accurately. At the same time, this open state of the receiving hopper 8 also greatly facilitates the subsequent cleaning work, allowing the worker to more easily clean the welding slag accumulated in the receiving hopper 8, thus improving work efficiency.

[0042] After welding is completed, thanks to the slender design of the side baffle 1 and the receiving hopper 8, workers can easily remove them from the narrow and complex space inside the steel cage. After removal, there is no need for tedious disassembly or adjustment. The receiving hopper can be directly hung at the next welding position, and the workers can quickly enter the preparation state for the next welding operation. This convenient transfer method effectively reduces auxiliary work time, significantly improves the continuity and efficiency of the overall welding operation, and allows the welding work to be carried out more efficiently and smoothly.

[0043] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A spark receiving device, characterized in that, It includes a receiving component for receiving sparks and a connecting component for suspending the receiving component below the waterstop. The receiving component or connecting component is provided with a guiding structure. When the receiving component and the connecting component move inside the reinforcing cage, the guiding structure guides the receiving component to move along the length direction of the waterstop.

2. The spark arrester according to claim 1, characterized in that, The connecting component includes two side baffles (1), a welding channel is formed between the two side baffles (1), the guiding structure includes an upper sealing plate (4) fixed to the top of the two side baffles (1), and a snap-fit ​​block (6) is fixed to the top of the side baffles (1), the snap-fit ​​block (6) snaps onto the surface of the waterstop. The receiving component includes receiving hoppers (8) located at the bottom of the two side baffles (1).

3. The spark arrester according to claim 2, characterized in that, The side baffle (1) is composed of a vertical part (2) and a horizontal part (3). The vertical part (2) is attached to the surface of the waterstop, and the vertical part (2) and the horizontal part (3) are arranged vertically.

4. The spark arrester according to claim 2, characterized in that, The snap-fit ​​block (6) has a magnetic block (7) embedded in the contact surface with the waterstop, and the magnetic block (7) is magnetically attracted to the surface of the waterstop.

5. The spark arrester according to claim 2, characterized in that, The receiving hopper (8) is rotatably connected to the bottom of the vertical part (2) via a rotating shaft. A magnetic block two (9) is fixed on the side of the receiving hopper (8) near the horizontal part (3). A limiting plate (10) is fixed at the end of the receiving hopper (8). When the welded waterstop is located above the receiving hopper (8), the magnetic block two (9) is attached to the surface of the horizontal part (3), and the limiting plate (10) is away from the vertical part (2). When the welded waterstop is close to the bottom, the receiving hopper (8) rotates downward via the rotating shaft, the magnetic block two (9) disengages from the waterstop, and the limiting plate (10) is attached to the surface of the vertical part (2).

6. The spark arrester according to claim 3, characterized in that, A connecting column (5) is fixed between the two vertical parts (2). After the receiving hopper (8) rotates downward by the rotating shaft, the limiting plate (10) is attached to the surface of the connecting column (5).

7. The spark arrester according to claim 2, characterized in that, The bottom of the receiving hopper (8) is curved, and the curved surface bends downward.

8. The spark arrester according to claim 1, characterized in that, The receiving component includes a base plate (11). The base plate (11) has two bent sections on opposite sides of the length direction of the waterstop. Two hanging holes (15) are opened on the bent sections. Hooks (16) are hung in the hanging holes (15). The same chain (17) is hung on the two hooks (16) at the same bend position. The hooks (16) suspend the base plate (11) on the base plate (11) and rotatably connect two side sealing plates (12). The two side sealing plates (12) are symmetrically arranged. When the two side sealing plates (12) are opened by flipping, they can cooperate with the bent sections under the resistance of the steel cage to form a box with an opening. The guiding structure includes inclined sides (13) on opposite sides of the side sealing plate (12) near the bending section. The end of the side sealing plate (12) away from the bottom plate (11) is shorter than the side of the side sealing plate (12) near the bottom plate (11). A guide piece (14) is provided at the position of the inclined side (13) away from the bottom plate (11). The two guide pieces (14) on the same side sealing plate (12) are arranged symmetrically in a figure-eight shape.

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