A torch

Abstract

The application relates to a fire spouting device and belongs to the technical field of fire spouting devices, which comprises a mounting ring, an annular flow channel in the mounting ring, an air inlet arranged on the mounting ring and communicating with the annular flow channel, a plurality of fire spouting heads, the plurality of fire spouting heads being uniformly and interval arranged along the length direction of the mounting ring, a hose arranged between the fire spouting heads and the mounting ring, a supporting assembly installed on the mounting ring and used for supporting the mounting ring, and an angle adjusting assembly comprising a mounting piece and an adjusting piece. The application has the effect of synchronously adjusting the fire spouting angles of the plurality of fire spouting heads.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flame spraying equipment, and in particular to a flame sprayer. BACKGROUND

[0002] A flame sprayer in the prior art is used for heating a boiler, and comprises an annular mounting pipe sleeved on the outer circumferential side of the boiler and a plurality of flame spraying heads circumferentially mounted on the inner circumferential wall of the annular mounting pipe. The flame spraying heads are arranged towards the boiler, and are connected by a hose between the flame spraying heads and the annular mounting pipe. The annular mounting pipe has an annular air cavity inside, and the annular mounting pipe is provided with a gas inlet communicating with the annular air cavity. The gas flows into the annular air cavity through the gas inlet, mixes with air in a burner to form a mixed gas, and is sprayed outwards through a flame spraying hole of the flame sprayer to form a flame after being ignited.

[0003] According to the related art, the inventors believe that when the spraying angles of the plurality of flame spraying heads need to be adjusted, each flame spraying head needs to be rotated in sequence, which is not very convenient. SUMMARY

[0004] In order to synchronously adjust the spraying angles of the plurality of flame spraying heads, the present application provides a flame sprayer.

[0005] The flame sprayer provided by the present application adopts the following technical scheme:

[0006] A flame sprayer comprises a mounting ring, wherein the mounting ring has an annular flow channel inside, and the mounting ring is provided with a gas inlet communicating with the annular flow channel;

[0007] A plurality of flame spraying heads are arranged, and the plurality of flame spraying heads are uniformly and circumferentially spaced apart along the axis of the mounting ring. A hose is arranged between the flame spraying heads and the mounting ring, the hose and the annular flow channel are in communication, and the hose and the flame spraying heads are in communication.

[0008] A support assembly is mounted on the mounting ring, and the support assembly is used for supporting the mounting ring; and

[0009] An angle adjusting assembly comprises a mounting member and an adjusting member.

[0010] The mounting member comprises a connecting ring and a placing ring, the connecting ring is coaxially arranged on the outer circumferential wall of the mounting ring, and the placing ring is coaxially arranged on the inner circumferential wall of the connecting ring.

[0011] The adjusting part comprises an adjusting ring and adjusting blocks, the adjusting ring is coaxially arranged on the inner wall of the connecting ring, the adjusting ring rotates along the circumference of the axis of the connecting ring, the adjusting blocks are arranged in multiple, the multiple adjusting blocks are uniformly arranged along the circumference of the axis of the placing ring, the adjusting blocks are slidingly arranged on the placing ring, the adjusting blocks slide along the radius of the placing ring, a spiral ring is arranged on the adjusting ring, a flat screw groove is arranged on the adjusting block for threadedly connecting the spiral ring, and the adjusting block is connected to the flame spraying head;

[0012] When the adjusting ring rotates along the circumference, the adjusting ring drives the multiple adjusting blocks to slide along the radius of the placing ring, thereby driving the flame spraying head to rotate.

[0013] According to the above technical scheme, when the angle of the flame spraying head needs to be adjusted, the angle needs to be adjusted one by one, which results in a slow angle adjustment speed. According to the scheme, when the angle of the flame spraying head needs to be adjusted, the adjusting ring is rotated, the adjusting blocks slide along the radius of the placing ring due to the threaded connection between the adjusting blocks and the adjusting ring, the adjusting blocks slide to push the flame spraying head to rotate, and the angles of multiple flame spraying heads are synchronously adjusted.

[0014] Optionally, a rotating rod is arranged on the adjusting ring, an arc-shaped hole is arranged on the placing ring for sliding the rotating rod, and the axis of the arc-shaped hole is coaxial with the axis of the placing ring.

[0015] According to the above technical scheme, when the angle of the flame spraying head needs to be adjusted, the adjusting ring needs to be rotated. According to the scheme, the rotating rod is arranged, the rotating rod is held by hand to move along the length direction of the arc-shaped hole, the rotation of the adjusting ring is facilitated, and the adjustment of the angle of the flame spraying head is facilitated.

[0016] Optionally, a driving part is arranged on the placing ring, the driving part is hingedly connected to the placing ring, the output end of the driving part is rotationally connected to the rotating rod, and the driving part drives the rotating rod to slide along the length direction of the arc-shaped hole.

[0017] According to the above technical scheme, it is laborious to manually adjust the angle of the flame spraying head, and the angle adjustment is not accurate. According to the scheme, the driving part is arranged, the output shaft of the driving part is connected to the rotating rod, the output shaft of the driving part drives the rotating rod to rotate the adjusting ring, manual operation is not needed, the angle adjustment is more intelligent, and the adjustment of the angle of the flame spraying head is more accurate.

[0018] Optionally, a convex ring is arranged on the outer wall of the adjusting ring, an annular embedding groove is arranged on the placing ring for embedding the convex ring, multiple balls are arranged on the bottom of the convex ring, the multiple balls are uniformly and interval arranged along the circumference of the bottom of the convex ring, and the balls are rollingly connected in the annular embedding groove.

[0019] By adopting the technical scheme, the convex ring is abutted to the bottom of the annular groove, and there is large sliding friction between the convex ring and the bottom of the annular groove, so that the convex ring is easy to wear and is not easy to rotate. The scheme sets a plurality of balls at the bottom of the convex ring, the balls are rolling connected in the annular groove, the balls convert the sliding friction between the convex ring and the bottom of the annular groove into rolling friction, reduces the risk of wear of the convex ring, and reduces the friction between the convex ring and the bottom of the annular groove, so that the rotation of the adjusting ring is more stable and smooth, and the adjustment of the angle of the flame jet head is facilitated.

[0020] Optionally, a limiting block is arranged on one side of the adjusting block close to the connecting ring, and a limiting groove for sliding of the limiting block is arranged on the placement ring.

[0021] By adopting the technical scheme, if the adjusting ring is continuously rotated, the adjusting block may fall off the placement ring. The scheme sets the limiting block on the adjusting block, and sets the limiting groove for sliding of the limiting block on the placement ring, the limiting groove limits the limiting block, thereby limiting the adjusting block, and reducing the risk of falling off of the adjusting block from the placement ring.

[0022] Optionally, a connecting column is arranged at one end of the adjusting block away from the limiting block, the connecting column is connected with the flame jet head, and the connecting column is arranged in an upward inclination.

[0023] By adopting the technical scheme, when the adjusting block slides in the radial direction of the placement ring, the angle adjustment of the flame jet head is small. The scheme sets the connecting column, and the connecting column is arranged in an upward inclination, so as to increase the rotation angle of the flame jet head, and make the flame jet head have a larger rotation stroke.

[0024] Optionally, the connecting column is ball-jointed to the adjusting block.

[0025] By adopting the technical scheme, when the angle of the flame jet head is adjusted, the angle can only be adjusted in one direction. The scheme ball-joints the connecting column to the adjusting block, adjusts the angle of the connecting column, thereby adjusts the angle of the flame jet head, so that the flame jet head can jet fire in more directions of the boiler, and the adjusting assembly can adjust the flame jet head in more angles, thereby increasing the adjustment of the angle of the flame jet head.

[0026] Optionally, the supporting assembly comprises a first supporting rod and a second supporting rod, the first supporting rod is arranged at the bottom wall of the placement ring, and the second supporting rod is slidingly arranged at one side of the first supporting rod away from the placement ring.

[0027] By adopting the technical scheme, the first support rod and the second support rod are arranged, and the second support rod is arranged in sliding mode on the first support rod, so that when different parts of the boiler at different heights need to be heated, the second support rod can be slid to adjust the height of the mounting ring and the fire jet head, and different parts of the boiler at different heights can be heated.

[0028] Optionally, the first support rod is provided with a sliding groove on the side away from the mounting ring, the second support rod is slidably inserted into the sliding groove, the first support rod is provided with a plurality of through holes on the outer side wall, the through holes are arranged in axial direction of the first support rod at intervals, the outer side wall of the second support rod is provided with a threaded hole, and a bolt penetrating through the through hole is threadedly connected in the threaded hole.

[0029] By adopting the technical scheme, when the height of the second support rod is adjusted, the second support rod can be slid so that the threaded hole is coaxial with the specified through hole, and the bolt is screwed into the threaded hole, thereby adjusting the height of the second support rod, and facilitating the adjustment of the height of the fire jet head.

[0030] Optionally, the bottom wall of the mounting ring is provided with a receiving groove, the first support rod is rotatably arranged in the receiving groove, the connecting ring is provided with a first magnetic block on the bottom of the receiving groove, and the side wall of the first support rod is provided with a second magnetic block magnetically attracted to the first magnetic block.

[0031] By adopting the technical scheme, when the fire jet device needs to be stored, the first support rod and the second support rod are high in height, resulting in a large floor area occupied by the fire jet device. According to the scheme, the receiving groove is arranged, the first support rod is rotatably connected in the receiving groove, the second support rod can be stored in the first support rod, the first support rod is rotatably inserted into the receiving groove, the first magnetic block in the receiving groove magnetically attracts the second magnetic block of the support rod, and thus the support assembly is stored in the receiving groove, thereby reducing the floor area occupied by the fire jet device.

[0032] In summary, the present application has at least one of the following beneficial technical effects:

[0033] 1. The fire jet device is provided with a mounting ring, a fire jet head, a support assembly and an angle adjusting assembly, so that the orientation angles of multiple fire jet heads can be adjusted synchronously.

[0034] 2. The fire jet device is provided with a driving member and a driving rod, so that the angle adjustment is more intelligent, and the adjustment of the angle of the fire jet head is more accurate.

[0035] 3. The fire jet device is provided with a connecting column ball-jointed to an adjusting block, so that the angle of the connecting column is adjusted to adjust the angle of the fire jet head, the fire jet head can jet fire in more directions of the boiler, and the adjusting assembly can adjust the fire jet head to more angles, thereby increasing the adjustment of the angle of the fire jet head. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a structural schematic diagram of the fire sparger.

[0037] Figure 2 is a structural schematic diagram of the mounting ring and the fire sparging head.

[0038] Figure 3 is a sectional view of the fire sparger.

[0039] Figure 4 is an enlarged view of part A in Figure 3

[0040] Figure 5 is an exploded structural schematic diagram of the fire sparger.

[0041] Figure 6 is an enlarged view of part B in Figure 5

[0042] Figure 7 is an exploded structural schematic diagram of the fire sparger from a second perspective.

[0043] Figure 8 is a structural schematic diagram of the fire sparger from a second perspective.

[0044] Figure 9 is an exploded structural schematic diagram of the support assembly.

[0045] BRIEF DESCRIPTION OF DRAWINGS: 1, mounting ring; 11, annular flow channel; 12, air inlet; 121, air inlet connector; 2, fire sparging head; 21, hose; 3, angle adjustment assembly; 31, mounting piece; 32, adjustment piece; 311, connecting ring; 312, placement ring; 3121, annular embedding groove; 3122, sliding groove; 3123, limiting groove; 3124, arc-shaped hole; 3125, receiving groove; 31251, first magnetic block; 321, adjustment ring; 3211, convex ring; 32111, rolling groove; 3212, spiral ring; 3213, actuating rod; 322, adjustment block; 3221, limiting block; 3222, planar screw groove; 3223, connecting column; 4, support assembly; 41, first support rod; 411, sliding groove; 412, through hole; 413, second magnetic block; 42, second support rod; 421, screw hole; 4211, screw; 422, support block; 5, ball bearing; 51, retainer; 511, circular groove; 6, driving piece. DETAILED DESCRIPTION

[0046] The following will be described in detail in combination with the accompanying Figures 1-9 The present application is further described in detail.

[0047] The present application discloses a fire sparger.

[0048] Reference will be made to Figure 1 ​​The burner comprises a mounting ring 1, a burner head 2, an angle adjusting assembly 3 and a supporting assembly 4. The burner head 2 is mounted on the mounting rod, the burner head 2 can spray flame to the boiler to heat the boiler, the angle adjusting assembly 3 can adjust the flame angle of the burner head 2 to adapt to different boilers, and the supporting assembly 4 can support and fix the mounting ring 1 and the burner head 2.

[0049] With reference to Figure 2 The mounting ring 1 is annular and tubular, is coaxially sleeved on the outer periphery of the boiler, and has an annular flow channel 11 coaxially arranged in the inside thereof for gas flow. An air inlet 12 is formed in the outer side wall of the mounting ring 1 and communicates with the annular flow channel 11. An air inlet connector 121 is mounted on the air inlet 12.

[0050] The burner head 2 is provided in plurality, and the plurality of burner heads 2 are evenly and spacedly arranged along the outer peripheral wall of the mounting ring 1. A hose 21 is arranged between the burner head 2 and the mounting ring 1, and the hose 21 and the annular flow channel 11 communicate with each other. A burner port is formed on the side of the burner head 2 away from the hose 21, and the burner port and the hose 21 communicate with each other. The burner head 2 can be rotated in any direction through the hose 21, so as to facilitate the adjustment of the flame angle of the burner head 2.

[0051] With reference to Figure 3 and Figure 4 The angle adjusting assembly 3 comprises a mounting member 31 and an adjusting member 32. The mounting member 31 comprises a connecting ring 311 and a placing ring 312. The connecting ring 311 is coaxially arranged on the outer peripheral wall of the mounting ring 1, and the placing ring 312 is coaxially arranged on the inner peripheral wall of the connecting ring 311. The cross section of the connecting ring 311 and the placing ring 312 is L-shaped. In this embodiment, the mounting ring 1, the connecting ring 311 and the placing ring 312 are integrally formed.

[0052] The adjusting member 32 comprises an adjusting ring 321 and a plurality of adjusting blocks 322. The adjusting ring 321 is coaxially arranged on the inner peripheral wall of the connecting ring 311, and the outer peripheral wall of the adjusting ring 321 is coaxially provided with a convex ring 3211 which is arranged towards the placing ring 312. The placing ring 312 is provided with an annular embedding groove 3121 for the convex ring 3211 to embed. The convex ring 3211 can slide along the axis of the annular embedding groove 3121 in the circumferential direction.

[0053] With reference to Figure 3 and Figure 4The convex ring 3211 is provided with a plurality of rolling grooves 32111 on the side close to the groove bottom of the annular embedding groove 3121, and the rolling grooves 32111 are evenly and spacedly arranged along the circumferential direction of the axis of the convex ring 3211. The rolling grooves 32111 are embedded with rolling balls 5, and the convex ring 3211 is provided with a retainer 51 on the side close to the groove bottom of the annular embedding groove 3121. The retainer 51 is installed on the convex ring 3211 through a bolt 4211, and the retainer 51 is provided with a protruding circular groove 511 for the rolling balls 5. The rolling balls 5 are fixed on the convex ring 3211 through the retainer 51.

[0054] The sliding friction between the convex ring 3211 and the groove bottom is converted into rolling friction through the rolling balls 5, the friction between the convex ring 3211 and the placing ring 312 is reduced, and the rotation of the adjusting ring 321 is more stable and smooth.

[0055] Referring to Figure 5 and Figure 6 , the placing ring 312 is provided with a plurality of sliding grooves 3122 on the side close to the adjusting ring 321, and the sliding grooves 3122 are evenly and spacedly arranged along the circumferential direction of the top surface of the placing ring 312. The sliding grooves 3122 are arranged along the radial direction of the placing ring 312, and the adjusting blocks 322 are slidingly arranged in the sliding grooves 3122. The adjusting blocks 322 can slide along the radial direction of the placing ring 312. The adjusting blocks 322 are integrally provided with limit blocks 3221 on the side close to the connecting ring 311, and the placing ring 312 is provided with limit grooves 3123 for the sliding of the limit blocks 3221. The limit blocks 3221 can be limited through the limit grooves 3123, so as to limit the adjusting blocks 322 and reduce the risk of the adjusting blocks 322 coming out of the sliding grooves 3122.

[0056] Referring to Figure 4 , the adjusting ring 321 is provided with a spiral ring 3212 on the side close to the placing ring 312, and the adjusting blocks 322 are provided with planar screw grooves 3222 for screw connection with the spiral ring 3212. When the adjusting ring 321 rotates, the spiral ring 3212 and the planar screw grooves 3222 are screw-connected, so as to drive a plurality of adjusting blocks 322 to simultaneously slide along the radial direction of the placing ring 312.

[0057] Referring to Figure 6 , the adjusting blocks 322 are provided with connecting columns 3223 on the side away from the connecting ring 311, and the connecting columns 3223 are ball-jointed to the adjusting blocks 322. The side of the connecting columns 3223 away from the adjusting blocks 322 is connected with the flame jet heads 2. When the adjusting ring 321 rotates, a plurality of adjusting blocks 322 are simultaneously driven to slide, the adjusting blocks 322 drive the connecting columns 3223 to move, so as to drive the connecting columns 3223 to rotate the flame jet heads 2, and realize the angle adjustment of a plurality of flame jet heads 2 at the same time. The ball joint between the connecting columns 3223 and the adjusting blocks 322 can make the flame jet heads 2 be adjusted in angle towards more directions, so that a plurality of flame jet heads 2 can be heated towards the same side of the boiler, and the practicability of the flame jet device is improved.

[0058] With reference to Figure 7 , the adjusting ring 321 is vertically provided with a pushing rod 3213 close to one side of the placing ring 312, and the placing ring 312 is provided with an arc-shaped hole 3124 for the sliding of the pushing rod 3213, the arc-shaped hole 3124 penetrates the upper and lower end faces of the placing ring 312, and the arc-shaped hole 3124 and the placing ring 312 are coaxially arranged. The pushing rod 3213 can slide along the length direction of the arc-shaped hole 3124, and the pushing rod 3213 can drive the adjusting ring 321 to rotate, thereby driving the plurality of flame spraying heads 2 to rotate simultaneously.

[0059] The side of the placing ring 312 away from the connecting ring 311 is provided with a driving member 6, which is preferably an oil cylinder in the embodiment. The tail end of the driving member 6 is hinged to the placing ring 312, and the output shaft of the driving member 6 is hinged to the pushing rod 3213. The driving member 6 can drive the pushing rod 3213 to slide along the length direction of the arc-shaped hole 3124, thereby driving the adjusting ring 321 to rotate, which facilitates the adjustment of the flame spraying angle of the flame spraying head 2.

[0060] With reference to Figure 8 and Figure 9 , the support assembly 4 is provided with multiple groups, and in the embodiment, the support assembly 4 is provided with four groups, and the four groups of support assemblies 4 are arranged in a circumferential direction and are uniformly spaced along the axis of the placing ring 312. The support assembly 4 includes a first support rod 41 and a second support rod 42. The side of the placing ring 312 away from the connecting ring 311 is provided with a plurality of receiving grooves 3125, and the plurality of receiving grooves 3125 are arranged in a circumferential direction and are uniformly spaced along the axis of the placing ring 312, and the first support rod 41 is rotationally connected to the receiving groove 3125 through a rotating shaft.

[0061] The end of the first support rod 41 away from the groove bottom of the receiving groove 3125 is provided with a sliding groove 411, and the second support rod 42 is slidingly inserted into the sliding groove 411. The outer side wall of the first support rod 41 is provided with a plurality of through holes 412, and the plurality of through holes 412 are arranged in a circumferential direction and are uniformly spaced along the axis of the first support rod 41. The outer side wall of the second support rod 42 is provided with a threaded hole 421, and a threaded bolt 4211 passing through the through hole 412 is threadedly connected to the threaded hole 421. The second support rod 42 is fixed by the threaded bolt 4211. The threaded hole 421 on the second support rod 42 is slid to a specified through hole 412, and then the threaded bolt 4211 is threadedly connected to the threaded hole 421. Thus, the second support rod 42 is fixed. The height of the flame spraying head 2 can be adjusted by sliding the second support rod 42, thereby adapting to different heights of the boiler, and different height positions of the boiler can be heated.

[0062] With reference to Figure 8 and Figure 9The second supporting rod 42 is integrally provided with a supporting block 422 at one end away from the first supporting rod 41, the supporting block 422 has a diameter greater than that of the second supporting rod 42, the supporting block 422 can increase the contact area between the second supporting rod 42 and the ground, so that the second supporting rod 42 is more stable.

[0063] The connecting ring 311 is provided with a first magnetic block 31251 at the bottom of the accommodating groove 3125, the first magnetic block 31251 is welded on the connecting ring 311, the outer sidewall of the first supporting rod 41 is bonded with a second magnetic block 413, the second magnetic block 413 and the first magnetic block 31251 are attracted to each other. When the supporting assembly 4 needs to be accommodated, the second supporting rod 42 can be completely slid into the first supporting rod 41, and then the first supporting rod 41 is rotated and inserted into the accommodating groove 3125, the second magnetic block 413 is attracted by the first magnetic block 31251, so that the first supporting rod 41 is fixed, which facilitates the accommodation of the supporting assembly 4.

[0064] The implementation principle of the fire sprayer according to the embodiment of the application is as follows: when the angle of the fire spraying head 2 needs to be adjusted synchronously, the driving member 6 is started, the output shaft of the driving member 6 drives the rotating rod 3213 to rotate along the length direction of the arc-shaped hole 3124, the rotating rod 3213 drives the adjusting ring 321 to rotate, since the adjusting ring 321 and the adjusting block 322 are threadedly connected, the adjusting block 322 can only slide along the radial direction of the placing ring 312, the connecting column 3223 moves with the adjusting block 322, and the connecting column 3223 drives the fire spraying head 2 to move, so that the angle of the fire spraying head 2 can be adjusted synchronously.

[0065] When the height of the mounting ring 1 and the fire spraying head 2 needs to be adjusted, the first supporting rod 41 is rotated out of the accommodating groove 3125, the second supporting rod 42 is slid out of the sliding groove 411, the screw hole 421 of the second supporting rod 42 is slid to the corresponding through hole 412, the bolt 4211 passes through the through hole 412 and is screwed into the screw hole 421, so that the second supporting rod 42 is fixed.

[0066] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A torch, characterized by: The mounting ring (1) has an annular flow channel (11) inside, and an air inlet (12) is arranged on the mounting ring (1) and communicates with the annular flow channel (11); A plurality of flame spraying heads (2) are arranged on the mounting ring (1) in a uniform and spaced manner along the circumferential direction of the mounting ring (1), a hose (21) is arranged between the flame spraying head (2) and the mounting ring (1), the hose (21) and the annular flow channel (11) communicate with each other, and the hose (21) and the flame spraying head (2) communicate with each other; A support assembly (4) is arranged on the mounting ring (1) and used for supporting the mounting ring (1); and An angle adjusting assembly (3) comprises a mounting member (31) and an adjusting member (32); The mounting member (31) comprises a connecting ring (311) and a placing ring (312), the connecting ring (311) is coaxially arranged on the outer wall of the mounting ring (1), and the placing ring (312) is coaxially arranged on the inner wall of the connecting ring (311); The adjusting member (32) comprises an adjusting ring (321) and an adjusting block (322), the adjusting ring (321) is coaxially arranged on the inner wall of the connecting ring (311), the adjusting ring (321) rotates along the circumferential direction of the connecting ring (311), a plurality of adjusting blocks (322) are arranged on the placing ring (312) in a uniform and spaced manner along the circumferential direction of the placing ring (312), the adjusting blocks (322) are slidingly arranged on the placing ring (312), the adjusting blocks (322) slide along the radial direction of the placing ring (312), a spiral ring (3212) is arranged on the adjusting ring (321), a planar screw groove (3222) is formed in the adjusting block (322) and is threadedly connected with the spiral ring (3212), and the adjusting block (322) is connected with the flame spraying head (2). When the adjusting ring (321) rotates along the circumferential direction, the adjusting ring (321) drives the adjusting blocks (322) to slide along the radial direction of the placing ring (312), so as to drive the flame spraying head (2) to rotate.

2. A torch according to claim 1, characterized in that: A driving rod (3213) is arranged on the adjusting ring (321), an arc-shaped hole (3124) is formed in the placing ring (312) and is used for sliding the driving rod (3213), and the arc-shaped hole (3124) is coaxial with the placing ring (312).

3. A torch according to claim 2, wherein: A driving member (6) is arranged on the placing ring (312) and is hinged to the placing ring (312), an output end of the driving member (6) is rotationally connected with the driving rod (3213), and the driving member (6) drives the driving rod (3213) to slide along the length direction of the arc-shaped hole (3124).

4. A torch according to claim 1, wherein: The outer peripheral wall of the adjusting ring (321) is provided with a convex ring (3211), the placing ring (312) is provided with an annular embedding groove (3121) for embedding the convex ring (3211), the bottom of the convex ring (3211) is provided with a plurality of balls (5), the plurality of balls (5) are uniformly and spaced apart circumferentially along the bottom of the convex ring (3211), and the balls (5) are rollingly connected in the annular embedding groove (3121).

5. A torch according to claim 1, wherein: The adjusting block (322) is provided with a limiting block (3221) on one side close to the connecting ring (311), and the placing ring (312) is provided with a limiting groove (3123) for sliding of the limiting block (3221).

6. A torch according to claim 5, wherein: The adjusting block (322) is provided with a connecting column (3223) at one end away from the limiting block (3221), the connecting column (3223) is connected with the flame jet head (2), and the connecting column (3223) is obliquely upwardly arranged.

7. A torch according to claim 6, wherein: The connecting column (3223) is ball-jointed to the adjusting block (322).

8. A torch according to claim 1, wherein: The supporting assembly (4) comprises a first supporting rod (41) and a second supporting rod (42), the first supporting rod (41) is arranged on the bottom wall of the placing ring (312), and the second supporting rod (42) is slidingly arranged on one side of the first supporting rod (41) away from the placing ring (312).

9. A torch according to claim 8, wherein: The first supporting rod (41) is provided with a sliding groove (411) on one side away from the placing ring (312), the second supporting rod (42) is slidingly inserted into the sliding groove (411), the first supporting rod (41) is provided with a plurality of through holes (412) on the outer side wall, the plurality of through holes (412) are spaced apart along the axial direction of the first supporting rod (41), the outer side wall of the second supporting rod (42) is provided with a threaded hole (421), and a bolt (4211) penetrating through the through hole (412) is threadedly connected in the threaded hole (421).

10. A torch according to claim 9, wherein: The bottom wall of the placing ring (312) is provided with a receiving groove (3125), the first supporting rod (41) is rotatably arranged in the receiving groove (3125), the connecting ring (311) is provided with a first magnetic block (31251) on the groove bottom of the receiving groove (3125), and the side wall of the first supporting rod (41) is provided with a second magnetic block (413) magnetically attracted to the first magnetic block (31251).

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