Fire welding device for high-altitude welding

Abstract

The utility model discloses a fire welding device for high-altitude welding. Comprising a telescopic supporting sleeve rod, an umbrella-shaped framework connected to the telescopic supporting sleeve rod and folded and unfolded relative to the telescopic supporting sleeve rod, a clamping mechanism arranged on the telescopic supporting sleeve rod and used for being clamped on a steel structure or a concrete structure, and a welding slag collecting mechanism arranged at the bottom of the umbrella-shaped framework and used for collecting welding slag. The welding slag collecting mechanism comprises fireproof cloth and a welding slag collecting bag detachably connected to the fireproof cloth, the fireproof cloth is detachably arranged at the bottom of the umbrella-shaped framework, a welding slag gathering structure is arranged on the fire receiving surface, facing the umbrella-shaped framework, of the fireproof cloth, the welding slag gathering structure is provided with a slag outlet, and the slag outlet is communicated with the welding slag collecting bag. The device has the beneficial effects that welding slag and sparks generated by high-altitude welding operation can be efficiently received, and the situation that the welding slag and the sparks fall to the ground to cause fire disasters is avoided; the welding slag collecting device has the advantages of simple structure, large receiving area and foldability, can quickly collect welding slag generated after welding, is quick and convenient to clean, and improves the use efficiency.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a fire-catching device for high-altitude welding. Background Art

[0002] During the construction process of building projects, there are a large number of welding operations, especially in the construction of steel structures and curtain walls. Different from general welding operations, the installation operations of steel structures and curtain wall keels are more often carried out at high altitudes. Therefore, during the welding process, a large amount of welding slag and sparks will fall. If not prevented, it is easy to cause fires. At present, the conventional solution is to hang a square fire-catching bucket made of thin steel plates below the welding point to catch the welding slag and prevent the welding sparks from splashing and causing fire accidents.

[0003] The size of the conventional welding fire-catching bucket is generally between 400 and 600 mm. This size is too small, and the welding slag receiving area is limited. There will still be a large amount of welding slag falling outside. Therefore, the use effect is not ideal. The existing method is to increase the size of the fire-catching bucket to increase the welding slag receiving area, but this will lead to an excessive weight of the fire-catching bucket, making it difficult to carry it to the high-altitude working point. Moreover, after the existing fire-catching bucket receives the welding slag, the fire-catching bucket needs to be cleaned. The existing fire-catching bucket cannot quickly collect the welding slag, reducing the use efficiency and causing unnecessary trouble for subsequent use.

[0004] Therefore, there is an urgent need for a new fire-catching device that can solve the problems of small fire-catching area and difficult welding slag collection at the same time. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the purpose of the utility model is to provide a fire-catching device for high-altitude welding, which is used to solve the problems of small fire-catching area and difficult welding slag collection.

[0006] To solve the above problems, the technical solution adopted by the utility model is as follows:

[0007] A fire-catching device for high-altitude welding, characterized in that it includes a telescopic support sleeve rod, an umbrella-shaped skeleton connected to the telescopic support sleeve rod and retractable relative to the telescopic support sleeve rod, a clamping mechanism arranged on the telescopic support sleeve rod for clamping on a steel structure or a concrete structure, and a welding slag collection mechanism arranged at the bottom of the umbrella-shaped skeleton for collecting welding slag. The welding slag collection mechanism includes a fireproof cloth and a welding slag collection bag detachably connected to the fireproof cloth. The fireproof cloth is detachably arranged at the bottom of the umbrella-shaped skeleton. The fire-catching surface of the fireproof cloth facing the umbrella-shaped skeleton is provided with a welding slag converging structure, and the welding slag converging structure has a slag outlet, and the slag outlet communicates with the welding slag collection bag.

[0008] Preferably, in the present application, the welding slag converging structure includes a converging area and a plurality of grooves communicating with the converging area for converging the welding slag on the fireproof cloth. The converging area is located at the center of the fire-receiving surface, and the converging area has a collecting port communicating with the welding slag collecting bag; the plurality of grooves extend radially from the converging area to the edge of the fireproof cloth; when the umbrella-shaped framework is in the unfolded state, the fire-receiving surface is in an inclined state with a high edge and a low middle.

[0009] Preferably, in the present application, the telescopic support sleeve rod includes a first vertical rod and a second vertical rod that are sleeved with each other. A plurality of positioning holes are provided on the first vertical rod along the length direction of the rod body. The second vertical rod is movably inserted into the first vertical rod and is clamped and limited with the first vertical rod through a spring pin.

[0010] Preferably, in the present application, the umbrella-shaped framework includes a fixed connection kit, a movable connection kit, a main support rod, an auxiliary support rod, and an end support rod. The fixed connection kit is fixedly installed at the lower end of the telescopic support sleeve rod; the movable connection kit is located above the fixed connection kit. The movable connection kit is slidably sleeved on the telescopic support sleeve rod, and a positioning pin for positioning is provided between the movable connection kit and the telescopic support sleeve rod; one end of the main support rod close to the telescopic support sleeve rod is pivotally connected to the fixed connection kit, and an end support rod for connecting the fireproof cloth is provided at the end of the main support rod away from the telescopic support sleeve rod; one end of the auxiliary support rod close to the telescopic support sleeve rod is pivotally connected to the movable connection kit through a rotating joint, and the end of the auxiliary support rod away from the telescopic support sleeve rod is pivotally connected to the middle of the main support rod.

[0011] Preferably, in the present application, the fixed connection kit includes a fixed joint provided at the lower end of the telescopic support sleeve rod and a lower connection ring provided in the fixed joint for connecting the main support rod. The lower connection ring connects a plurality of main support rods along the circumference.

[0012] Preferably, in the present application, the movable connection kit includes a movable joint slidably sleeved outside the telescopic support sleeve rod and an upper connection ring provided in the movable joint for connecting the auxiliary support rod. A positioning pin for positioning is provided between the movable joint and the telescopic support sleeve rod; one auxiliary support rod is pivotally connected between each main support rod and the upper connection ring.

[0013] Preferably, in the present application, an opening groove for receiving the end support rod is provided at the end of the main support rod away from the telescopic support sleeve rod. The end support rod is pivotally connected to the main support rod, and a limiting rope is connected between the end support rod and the main support rod.

[0014] Preferably, in the present application, the clamping mechanism includes an upper clamping plate and a lower clamping plate sleeved on the telescopic support sleeve rod for clamping up and down on a steel structure or a concrete structure. The upper clamping plate is fixedly connected to the telescopic support sleeve rod, the lower clamping plate is slidably connected to the telescopic support sleeve rod, and the upper clamping plate and the lower clamping plate are provided with a top support bolt assembly for adjusting the opening and closing degree of the clamping mechanism.

[0015] Preferably, in the present application, the upper clamping plate is fixed to the telescopic support sleeve rod through a stiffening plate.

[0016] Preferably, in the present application, the moving section and the fixed section are wrapped with fireproof cotton on the outside.

[0017] When the present application is used, move the moving section downward along the first vertical rod to be fixed on the positioning hole at the lowest end, and drive the main support rod to open downward through the auxiliary support rod, so that the fireproof cloth is completely unfolded. The end support rod flips upward along with the main support rod until it is restricted by the limit rope and stops. The top of it drives the corner of the fireproof cloth to fold upward, so that the fireproof cloth as a whole forms a box-like shape. Pull up the second vertical rod to make the fireproof cloth drop to a suitable height, then move the upper clamping plate and the lower clamping plate at the top of the second vertical rod to the building structure, and rotate the two top support bolt assemblies so that the upper clamping plate presses downward on the building structure until the lower clamping plate tightly presses against the lower part of the building structure.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: The device can efficiently receive the welding slag and sparks generated by high-altitude welding operations, and avoid them falling to the ground and causing fires; the fire-catching device has the advantages of a large receiving area and being foldable, and is simple to manufacture and low in material cost. When in use, it is easy to operate and carry and fix; it can quickly collect the welding slag generated after catching fire, quickly clean the fire-catching device, and improve the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural diagram of the fire-catching device for high-altitude welding described in the present utility model;

[0020] Figure 2 is a front view of the fire-catching device for high-altitude welding described in the present utility model;

[0021] Figure 3 is a three-dimensional view of the fire-catching device for high-altitude welding described in the present utility model with the fireproof cloth removed;

[0022] Figure 4 is a structural schematic diagram of the umbrella-shaped skeleton described in the present utility model;

[0023] Figure 5 is a partially enlarged view of the umbrella-shaped skeleton of the present utility model.

[0024] In the BRIEF DESCRIPTION OF THE DRAWINGS:

[0025] 1 - Telescopic support sleeve rod; 11 - First vertical rod; 12 - Second vertical rod; 111 - Positioning hole;

[0026] 2 - Umbrella-shaped framework; 21 - Fixed connection kit; 211 - Fixed section; 212 - Lower connection ring; 22 - Movable connection kit; 221 - Movable section; 222 - Upper connection ring; 23 - Main support rod; 231 - Opening groove; 232 - Limit rope; 24 - Auxiliary support rod; 25 - End support rod; 26 - Rotating joint; 27 - Positioning pin;

[0027] 3 - Clamping mechanism; 31 - Upper clamping plate; 32 - Lower clamping plate; 33 - Top support bolt assembly; 34 - Stiffening plate;

[0028] 4 - Weld slag collection mechanism; 41 - Fireproof cloth; 411 - Weld slag converging structure; 4111 - Converging area; 4112 - Groove; 42 - Weld slag collection bag. Specific implementation mode

[0029] The following uses specific specific examples to illustrate the implementation mode of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.

[0030] It should be noted that the process equipment or devices not specifically noted in the following embodiments all adopt conventional equipment or devices in the art.

[0031] In addition, it should be understood that one or more method steps mentioned in the present application do not exclude the existence of other method steps before and after the combined steps or the insertion of other method steps between these clearly mentioned steps, unless otherwise stated; it should also be understood that the combined connection relationship between one or more devices / devices mentioned in the present application does not exclude the existence of other devices / devices before and after the combined devices / devices or the insertion of other devices / devices between these two clearly mentioned devices / devices, unless otherwise stated. Moreover, unless otherwise stated, the numbers of each method step are only convenient tools for identifying each method step, rather than limiting the arrangement order of each method step or the scope in which the present application can be implemented. The change or adjustment of their relative relationship, without substantial change in technical content, should also be regarded as the scope in which the present application can be implemented.

[0032] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0034] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0035] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] The present application will be further described below in conjunction with specific embodiments, but the protection scope of the present application is not limited thereto.

[0037] As Figures 1 to 5As shown in the figure, a fire-catching device for high-altitude welding according to the present utility model includes a telescopic support sleeve rod 1, an umbrella-shaped framework 2 connected to the telescopic support sleeve rod 1 and retractable relative to the telescopic support sleeve rod 1, a clamping mechanism 3 provided on the telescopic support sleeve rod 1 for clamping on a steel structure or a concrete structure, and a welding slag collection mechanism 4 provided at the bottom of the umbrella-shaped framework 2 for collecting welding slag. The welding slag collection mechanism 4 includes a fireproof cloth 41 and a welding slag collection bag 42 detachably connected to the fireproof cloth 41. The fireproof cloth 41 is detachably provided at the bottom of the umbrella-shaped framework 2. A welding slag converging structure 411 is provided on the fire-catching surface of the fireproof cloth 41 facing the umbrella-shaped framework 2. The welding slag converging structure 411 has a slag outlet, and the slag outlet communicates with the welding slag collection bag 42.

[0038] As Figures 1 to 5 shown, the welding slag converging structure 411 includes a converging area 4111 and a plurality of grooves 4112 communicating with the converging area 4111 for converging welding slag on the fireproof cloth 41. The converging area 4111 is located at the center of the fire-catching surface, and the converging area 4111 has a slag outlet communicating with the welding slag collection bag 42; the plurality of grooves 4112 extend radially from the converging area 4111 to the edge of the fireproof cloth 41; when the umbrella-shaped framework 2 is in the unfolded state, the fire-catching surface is in an inclined state with a high edge and a low middle.

[0039] As Figures 1 to 5 shown, the telescopic support sleeve rod 1 includes a first vertical rod 111 and a second vertical rod 12 which are sleeved with each other. A plurality of positioning holes 111 are provided on the first vertical rod 111 along the length direction of the rod body; the second vertical rod 12 is used to extend the vertical use length of the telescopic support sleeve rod 1. The second vertical rod 12 is movably inserted into the first vertical rod 111 and is clamped and limited with the first vertical rod 111 through a spring pin.

[0040] As Figures 1 to 5As shown in the figure, the umbrella-shaped framework 2 includes a fixed connection kit 21, a movable connection kit 22, a main support rod 23, auxiliary support rods 24, and end support rods 25. The fixed connection kit 21 is fixedly installed at the lower end of the telescopic support sleeve rod 1; the movable connection kit 22 is located above the fixed connection kit 21. The movable connection kit 22 is slidably sleeved on the telescopic support sleeve rod 1, and a positioning pin 27 for positioning is provided between the movable connection kit 22 and the telescopic support sleeve rod 1; one end of the main support rod 23 close to the telescopic support sleeve rod 1 is pivotally connected to the fixed connection kit 21, and an end support rod 25 for connecting the fireproof cloth 41 is provided at the end of the main support rod 23 far from the telescopic support sleeve rod 1; one end of the auxiliary support rod 24 close to the telescopic support sleeve rod 1 is pivotally connected to the movable connection kit 22 through a rotating joint 26, and one end of the auxiliary support rod 24 far from the telescopic support sleeve rod 1 is pivotally connected to the middle of the main support rod 23. When the umbrella-shaped framework 2 needs to be unfolded, the movable connection kit 22 is adjusted to make the main support rod 23 rotate downward. At this time, the fireproof cloth can be unfolded. After unfolding to an appropriate angle, the movable connection kit 22 and the telescopic support sleeve rod 1 can be positioned through the positioning pin. The auxiliary support rod 24 functions to lift and retract the main support rod 23.

[0041] As Figures 1 to 5 shown in the figure, the fixed connection kit 21 includes a fixed joint 211 provided at the lower end of the telescopic support sleeve rod 1 and a lower connection ring 212 provided in the fixed joint 211 for connecting the main support rod 23. The lower connection ring 212 is connected to multiple main support rods 23 along the circumferential direction.

[0042] As Figures 1 to 5 shown in the figure, the movable connection kit 22 includes a movable joint 221 slidably sleeved outside the telescopic support sleeve rod 1 and an upper connection ring 222 provided in the movable joint 221 for connecting the auxiliary support rod 24. A positioning pin for positioning is provided between the movable joint 221 and the telescopic support sleeve rod 1; one auxiliary support rod 24 is pivotally connected between each main support rod 23 and the upper connection ring 222.

[0043] As Figures 1 to 5As shown, an opening slot 231 for receiving the end support rod 25 is provided at one end of the main support rod 23 away from the telescopic support sleeve rod 1. The end support rod 25 is pivotally connected to the main support rod 23, and a limiting rope 232 is connected between the end support rod 25 and the main support rod 23. When the fire-catching device needs to be retracted, the end support rod 25 can be flipped and received into the opening slot 231 of the end support rod 25. When the fire-catching device needs to be deployed, the end support rod 25 is flipped to the vertical state, and the edge of the fireproof cloth is pulled up to prevent the dropped welding slag from leaking out. The limiting rope 232 is made of steel wire and is fixed at the tail end of the main support rod and the top end of the end support rod respectively to limit the rotation amplitude of the end support rod and prevent the four corners of the fireproof cloth from collapsing.

[0044] As Figures 1 to 5 shown, the clamping mechanism 3 includes an upper clamping plate 31 and a lower clamping plate 32 sleeved on the telescopic support sleeve rod 1 for clamping on a steel structure or a concrete structure in an up-and-down opening manner. The upper clamping plate 31 is fixedly connected to the telescopic support sleeve rod 1, the lower clamping plate 32 is slidably connected to the telescopic support sleeve rod 1, and a top support bolt assembly 33 for adjusting the opening degree of the clamping mechanism 3 is provided between the upper clamping plate 31 and the lower clamping plate 32. The top support bolt assembly 33 is adjusted to adapt to building structures of different thicknesses.

[0045] As Figures 1 to 5 shown, the upper clamping plate 31 is fixed to the telescopic support sleeve rod 1 through a stiffening plate 34.

[0046] As Figures 1 to 5 shown, the outer parts of the moving section 221 and the fixed section 211 are wrapped with fireproof cotton.

[0047] As Figures 1 to 5 shown, the first vertical rod 111, the second vertical rod 12, the main support rod 23, the auxiliary support rod 24, the end support rod 25 and the rotating joint 26 are all sprayed with fireproof paint to prevent damage.

[0048] When this application is in use, the moving section 221 is moved downward along the first vertical rod 111 to be fixed on the positioning hole 111 at the lowest end, and the main support rod 23 is driven by the auxiliary support rod 24 to be opened downward, so that the fireproof cloth 41 is completely unfolded. The end support rod 25 is flipped upward with the main support rod 23 until it is restricted by the limiting rope 231 and stops. The top of it drives the corners of the fireproof cloth 41 to be folded upward, so that the fireproof cloth 41 forms a box-like shape as a whole. The second vertical rod 12 is pulled upward to make the fireproof cloth 41 drop to an appropriate height. Then, the upper clamping plate 31 and the lower clamping plate 32 at the top of the second vertical rod 12 are moved to the building structure, and the two top support bolt assemblies 33 are rotated so that the upper clamping plate 31 presses downward against the building structure until the lower clamping plate 32 tightly presses against the lower part of the building structure.

[0049] Overview of the construction method for this application: Site preparation → Open the fireproof cloth → Fix the fire connection device → Welding operation → Put away the fire connection device → Clean the welding slag.

[0050] Specific construction steps:

[0051] Site preparation:

[0052] According to the location and number of work points of the high-altitude welding operation on site, prepare a certain number of fire connection devices, and have the welding personnel carry the fire connection devices to the work point, or lift the fire connection devices to the work point with ropes.

[0053] Open the fireproof cloth:

[0054] With one end of the fire-connecting device with the top support bolt assembly 33 facing upwards, push the movable section 221 to move downward along the first vertical pole 11, and drive the auxiliary support rod 24 to push the main support rod 23 downward through the rotating section 26. At the same time, since the inner circumference of the fireproof cloth 41 is smaller than the sum of the lengths of the connecting lines at the tail ends of the four main support rods 23, it drives the third support rod 5 to expand from the inside of the main support rod 23 to an angle perpendicular to the main support rod 23 until it stops rotating after being pulled by the limit rope. At this time, the fireproof cloth 41 has been fully unfolded.

[0055] Fire connection device fixing:

[0056] Determine the specific location of the welding operation point, install a fixed fire connection device on the building structure directly below it, hang the unfolded fire connection device down under the building structure, rotate the top support bolt assembly 33, so that the gap between the upper clamping plate 31 and the lower clamping plate 32 is larger than the thickness of the building structure, so that the upper clamping plate 31 and the lower clamping plate 32 can be inserted into the building structure, and then rotate the top support bolt assembly 33 in the opposite direction to support the top support bolt assembly 33 downward on the building structure, thereby moving the upper clamping plate 31 together with the entire fire connection device upward until the lower clamping plate 32 tightly supports the position below the building structure.

[0057] Welding operations:

[0058] After the firing device is fixed, start welding. During welding, check the firing device's reception of welding slag at any time. If it is found that the firing device position cannot fully receive welding slag, adjust the firing device position in time.

[0059] To put away the fire connection device:

[0060] When the welding operation is completed, unscrew the top support bolt assembly 33 again to loosen the upper clamp plate 31 and the lower clamp plate 32, then remove the fire connection device from the building structure, pull up the movable section 221, and gradually move the main support rod 23 closer to the first vertical pole 11 until the fireproof cloth 41 is completely retracted, align the movable section 221 with the positioning hole 111 on the first vertical pole 11, and fix it with bolts.

[0061] Welding slag cleaning:

[0062] Tie a rope at the position of the second vertical rod 12 below the lower clamping plate 32. After lowering the fire-catching bucket and bringing it back to the ground, open the fire-catching bucket again, clean the welding slag in the fireproof cloth 41 into the welding slag collection bag 42, then remove the welding slag collection bag 42, clean the welding slag in it, and check whether components such as the main support rod 23 are damaged and whether the fireproof effect of the fireproof cotton on components such as the movable joint 221 is still effective. After the inspection, re-fold the fireproof cloth 41 and place it in the warehouse for use in the next welding operation.

[0063] The above embodiments are used to illustrate the implementation schemes disclosed by the present utility model and should not be construed as limitations on the present utility model. In addition, various modifications listed herein and changes in the methods and compositions of the utility model are obvious to those skilled in the art without departing from the scope and spirit of the present utility model. Although the present utility model has been specifically described in conjunction with various specific preferred embodiments of the present utility model, it should be understood that the present utility model should not be limited to these specific embodiments. In fact, all obvious modifications to those skilled in the art as described above to obtain the utility model should be included within the scope of the present utility model.

Claims

1. A fire-catching device for high-altitude welding, characterized in that, It includes a telescopic support sleeve rod (1), an umbrella-shaped framework (2) connected to the telescopic support sleeve rod (1) and retractable relative to the telescopic support sleeve rod (1), a clamping mechanism (3) provided on the telescopic support sleeve rod (1) for clamping to a steel structure or a concrete structure, and a slag collection mechanism (4) provided at the bottom of the umbrella-shaped framework (2) for collecting welding slag. The slag collection mechanism (4) includes a fireproof cloth (41) and a slag collection bag (42) detachably connected to the fireproof cloth (41). The fireproof cloth (41) is detachably arranged at the bottom of the umbrella-shaped framework (2). A slag converging structure (411) is provided on the fire-receiving surface of the fireproof cloth (41) facing the umbrella-shaped framework (2). The slag converging structure (411) has a slag outlet, and the slag outlet communicates with the slag collection bag (42).

2. The fire-catching device for high-altitude welding according to claim 1, wherein: The slag converging structure (411) includes a converging area (4111) and a plurality of grooves (4112) communicating with the converging area (4111) for converging the welding slag on the fireproof cloth (41). The converging area (4111) is located at the center of the fire-receiving surface. The converging area (4111) has a slag outlet communicating with the slag collection bag (42). The plurality of grooves (4112) extend radially from the converging area (4111) to the edge of the fireproof cloth (41). When the umbrella-shaped framework (2) is in the unfolded state, the fire-receiving surface is in an inclined state with a high edge and a low middle.

3. The fire-catching device for high-altitude welding according to claim 1, characterized in that: The telescopic support sleeve rod (1) includes a first vertical rod (11) and a second vertical rod (12) that are sleeved with each other. A plurality of positioning holes (111) are provided on the first vertical rod (11) along the length direction of the rod body. The second vertical rod (12) is movably inserted into the first vertical rod (11) and is clamped and limited to the first vertical rod (11) by a spring pin.

4. The fire-catching device for high-altitude welding according to claim 3, characterized in that: The umbrella-shaped framework (2) includes a fixed connection kit (21), a movable connection kit (22), a main support rod (23), an auxiliary support rod (24), and an end support rod (25). The fixed connection kit (21) is fixedly installed at the lower end of the telescopic support sleeve rod (1). The movable connection kit (22) is located above the fixed connection kit (21). The movable connection kit (22) is slidably sleeved on the telescopic support sleeve rod (1). A positioning pin for positioning is provided between the movable connection kit (22) and the telescopic support sleeve rod (1). One end of the main support rod (23) close to the telescopic support sleeve rod (1) is pivotally connected to the fixed connection kit (21). An end support rod (25) for connecting the fireproof cloth (41) is provided at the end of the main support rod (23) away from the telescopic support sleeve rod (1). One end of the auxiliary support rod (24) close to the telescopic support sleeve rod (1) is pivotally connected to the movable connection kit (22) through a rotating joint (26). One end of the auxiliary support rod (24) away from the telescopic support sleeve rod (1) is pivotally connected to the middle of the main support rod (23).

5. The fire-catching device for high-altitude welding according to claim 4, characterized in that: The fixed connection kit (21) includes a fixed section (211) provided at the lower end of the telescopic support sleeve rod (1) and a lower connection ring (212) provided in the fixed section (211) for connecting the main support rod (23). The lower connection ring (212) circumferentially connects a plurality of main support rods (23).

6. The fire catching device for high-altitude welding according to claim 5, characterized in that: The movable connection kit (22) includes a movable section (221) slidably sleeved outside the telescopic support sleeve rod (1) and an upper connection ring (222) provided in the movable section (221) for connecting the auxiliary support rod (24). A positioning pin for positioning is provided between the movable section (221) and the telescopic support sleeve rod (1); One auxiliary support rod (24) is pivotally connected between each main support rod (23) and the upper connection ring (222).

7. The fire-catching device for high-altitude welding according to claim 4, characterized in that: An opening groove (231) for receiving the end support rod (25) is provided at one end of the main support rod (23) away from the telescopic support sleeve rod (1). The end support rod (25) is pivotally connected to the main support rod (23), and a limiting rope (232) is connected between the end support rod (25) and the main support rod (23).

8. The fire catching device for high-altitude welding according to claim 4, characterized in that: The clamping mechanism (3) includes an upper clamping plate (31) and a lower clamping plate (32) sleeved on the telescopic support sleeve rod (1) for clamping up and down on a steel structure or a concrete structure. The upper clamping plate (31) is fixedly connected to the telescopic support sleeve rod (1), the lower clamping plate (32) is slidably connected to the telescopic support sleeve rod (1), and a top support bolt assembly (33) for adjusting the opening and closing degree of the clamping mechanism (3) is provided on the upper clamping plate (31) and the lower clamping plate (32).

9. The fire-catching device for high-altitude welding according to claim 8, wherein: The upper clamping plate (31) is fixed to the telescopic support sleeve rod (1) through a stiffening plate (34).

10. The fire-catching device for high-altitude welding according to claim 6, characterized in that: The outer parts of the movable section (221) and the fixed section (211) are wrapped with fireproof cotton.

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