Water gun convenient for fire extinguishing

Abstract

The water gun comprises a base, an L-shaped support is arranged on the base, a connecting shaft is rotationally installed in the vertical section of the L-shaped support, a worm gear is arranged at one end of the connecting shaft and located on the outer side of the L-shaped support, two lug plates are arranged on the outer side of the L-shaped support, and the same worm is rotationally installed between the two lug plates; a worm drives a worm gear to rotate, an arc-shaped sliding rail does circular motion through connection of a connecting shaft, a square column drives a first cylinder and a second cylinder to do reciprocating swing through connection of a supporting shaft and connection of a connecting rod, and therefore a water gun head connected to a U-shaped connecting piece is driven to achieve angle adjustment in the horizontal direction; compared with the prior art, the stability of the water gun head after angle adjustment in the horizontal direction is guaranteed through the self-locking performance between the worm and the worm gear, reciprocating motion of the water gun head in the horizontal direction is achieved through one-way rotation of the worm, and labor is saved through manual operation.

Description

Technical Field

[0001] The invention relates to the technical field of fire fighting equipment, in particular to a water gun which is convenient for extinguishing fire. Background Art

[0002] The invention with the publication number of CN113713305A discloses a water gun for extinguishing fire, comprising a water gun body and a water hose connected with the water gun body by buckle, the water gun also comprising a horizontal steering mechanism, a connecting column is vertically arranged on the horizontal steering mechanism, the connecting column rotates circumferentially through the horizontal steering mechanism, the top of the connecting column is longitudinally connected with a vertical steering mechanism, the water gun body is fixedly mounted on the vertical steering mechanism through a clamping mechanism, the vertical steering mechanism can drive the water gun body to rotate longitudinally; the horizontal steering mechanism is provided with a limiting mechanism facing the side of the water hose, the limiting mechanism is used to limit the movement of the water hose in the longitudinal and transverse directions when spraying water. The present invention can replace the manual grasping of the water gun body, is particularly suitable for fire scenes that require long-term water spraying, reduces the occupation of scarce firefighters, and effectively reduces the physical exertion of firefighters.

[0003] However, the prior art does not perform positioning for the horizontal and vertical steering after angle adjustment, and only supports the water hose through the gap between the round rods at the limiting mechanism, resulting in poor stability of the horizontal and vertical steering after angle adjustment, and is not suitable for long-term fixed-point spraying. Therefore, a water gun that is convenient for fire extinguishing is needed to meet people's needs. Summary of the invention

[0004] The object of the present invention is to provide a water gun which is convenient for fire extinguishing, so as to solve the problem that the prior art proposed in the above background technology does not perform positioning after angle adjustment of horizontal steering and vertical steering, and only supports the water hose through the gap between the round rods at the limiting mechanism, which makes the stability of the horizontal steering and vertical steering angle adjustment poor and is not suitable for long-term fixed-point spraying.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a water gun convenient for fire extinguishing, comprising a base, wherein an L-shaped bracket is arranged on the base, a connecting shaft is rotatably installed in the vertical section of the L-shaped bracket, one end of the connecting shaft is provided with a worm gear, the worm gear is located on the outer side of the L-shaped bracket, two ear plates are arranged on the outer side of the L-shaped bracket, the same worm is rotatably installed between the two ear plates, the worm gear and the worm gear are meshed with each other, a first crank handle is arranged on one end of the worm gear, an arc slide rail is arranged on the other end of the connecting shaft, a first cylinder is rotatably installed on the base, a square column is arranged on the first cylinder, a second cylinder is arranged on the square column, the second cylinder is rotatably installed in the horizontal section of the L-shaped bracket, a connecting rod is rotatably installed on the square column, a supporting shaft is movably installed on one end of the connecting rod, and the supporting shaft is movably installed in the arc slide rail, a U-shaped connecting piece is arranged on the top end of the second cylinder, a connecting block is rotatably installed in the U-shaped connecting piece, a water gun head is arranged on the connecting block, a first moving rod and a second moving rod are slidably installed on the base, and the first moving rod is slidably installed on the base. The cam is an axially coupled machine which is adapted to engage the first and second gears of the control rod and the control rod, and the cam is adapted to engage the first and second gears of the control rod.

[0006] Preferably, two baffles are provided on the outer wall of the connecting shaft, and the two baffles are respectively located on the inner and outer sides of the vertical section of the L-shaped bracket.

[0007] Preferably, a first T-shaped shaft is provided on the bottom end of the first cylinder, and the first T-shaped shaft is rotatably installed in the base.

[0008] Preferably, a second T-shaped shaft is provided on one end of the support shaft, and the second T-shaped shaft is rotatably installed in the connecting rod. A support plate is provided on the outer wall of the support shaft, and the support plate is located on the inner side of the arc-shaped slide rail. Positioning shafts are provided on both sides of the outer wall of the other end of the support shaft. The two positioning shafts are eccentrically rotatably connected with the same cam handle, and the cam handle is located on the outer side of the arc-shaped slide rail.

[0009] Preferably, two mutually parallel guide rails are arranged on the base, and the first moving rod and the second moving rod are both slidably mounted on the two guide rails.

[0010] Preferably, the first rack passes through the second moving rod, and the second rack passes through the first moving rod.

[0011] Preferably, a positioning ring is provided on the outer wall of the first cylinder, and the gear ring is rotatably mounted on the positioning ring.

[0012] Preferably, a threaded hole is provided on the vertical section of the L-shaped bracket, and the screw is threadedly connected in the threaded hole.

[0013] Preferably, a third T-shaped shaft is provided on one end of the screw rod, and the third T-shaped shaft is rotatably installed in the first moving rod.

[0014] Preferably, a sleeve is provided on the base, a slide rod is slidably installed in the sleeve, and the slide rod is installed on the bottom end of the circular track.

[0015] The beneficial effects of the present invention are:

[0016] In the present invention, the worm gear is driven to rotate by the worm, and the arc-shaped slide rail is made to perform circular motion through the connection of the connecting shaft. The square column drives the first cylinder and the second cylinder to swing back and forth through the connection of the supporting shaft and the connection of the connecting rod, thereby driving the water gun head connected to the U-shaped connecting piece to achieve horizontal angle adjustment. Compared with the prior art, the self-locking property between the worm gear and the worm gear ensures the stability of the water gun head after the horizontal angle adjustment, and the unidirectional rotation of the worm gear realizes the reciprocating motion of the water gun head in the horizontal direction, and the manual operation is relatively labor-saving.

[0017] In the present invention, the first movable rod is driven to move horizontally by rotating the screw rod, and the second movable rod is made to move relative to the first movable rod in a synchronous direction through the meshing between the gear ring, the first rack and the second rack. Moreover, the circular track is made to realize vertical lifting movement through the connection between the first connecting rod and the second connecting rod. Through the arrangement of the connecting column, the cross bar and the spherical part, the vertically movable circular track realizes the adjustment of the vertical angle of the water gun head. Compared with the prior art, the threaded engagement between the screw rod and the L-shaped bracket ensures the stability of the vertical angle of the water gun head.

[0018] In the present invention, the cooperation among the circular track, the connecting column, the cross bar and the spherical member ensures that the angle of the water gun head in the horizontal direction can be smoothly adjusted while realizing the angle of the water gun head in the vertical direction.

[0019] In the present invention, the water gun head is positioned to adjust the angles in the horizontal and vertical directions, so that the water gun head can stably perform fixed-point spraying for a long time, and the operation is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a water gun for extinguishing fire proposed by the present invention;

[0021] Figure 2 A schematic diagram of a horizontal angle adjustment structure of a water gun for facilitating fire extinguishing proposed by the present invention;

[0022] Figure 3 A water gun for extinguishing fire proposed by the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 A schematic diagram of the front cross-sectional structure of a water gun for facilitating fire extinguishing proposed by the present invention for adjusting the horizontal angle;

[0024] Figure 5 A water gun for extinguishing fire proposed by the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0025] Figure 6 A schematic diagram of a top view of a cross-sectional structure of a connecting rod of a water gun for extinguishing fire proposed by the present invention;

[0026] Figure 7 A schematic diagram of a vertical angle adjustment structure of a water gun for fire extinguishing proposed by the present invention;

[0027] Figure 8 A schematic diagram of a top view cross-sectional structure of a gear ring of a water gun for extinguishing fire proposed by the present invention;

[0028] Fig. 9 A schematic front cross-sectional structure diagram of a first connecting rod and a second connecting rod of a water gun for extinguishing fire proposed by the present invention;

[0029] Fig.10 A schematic diagram of a top-view cross-sectional structure of a circular track of a water gun for fire extinguishing proposed by the present invention;

[0030] Fig.11 The present invention provides a front cross-sectional structural schematic diagram of a water gun for facilitating fire extinguishing with vertical angle adjustment.

[0031] In the figure: 1, base; 101, guide rail; 102, sleeve; 103, slide rod; 2, L-shaped bracket; 201, connecting shaft; 202, ear plate; 203, baffle; 204, threaded hole; 3, worm gear; 4, worm; 401, first crank handle; 5, arc-shaped slide rail; 6, first cylinder; 601, gear ring; 602, first T-shaped shaft; 603, positioning ring; 7, square column; 8, second cylinder; 9, connecting rod; 10, support shaft; 1001, first T-shaped shaft; 1002, Support plate; 1003, positioning shaft; 1004, cam handle; 11, U-shaped connector; 1101, connecting column; 1102, cross bar; 1103, spherical member; 12, connecting block; 13, water gun head; 14, first moving rod; 1401, first rack; 1402, first connecting rod; 15, second moving rod; 1501, second rack; 1502, second connecting rod; 16, circular track; 17, screw; 1701, second crank handle; 1702, third T-shaped shaft. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figure 1-11A water gun convenient for fire extinguishing comprises a base 1, an L-shaped bracket 2 is arranged on the base 1, a connecting shaft 201 is rotatably installed in the vertical section of the L-shaped bracket 2, a worm gear 3 is arranged at one end of the connecting shaft 201, the worm gear 3 is located on the outside of the L-shaped bracket 2, two ear plates 202 are arranged on the outside of the L-shaped bracket 2, a worm 4 is rotatably installed between the two ear plates 202, the worm 4 and the worm gear 3 are meshed with each other, a first crank handle 401 is arranged on one end of the worm 4, an arc-shaped slide rail 5 is arranged on the other end of the connecting shaft 201, a first cylinder 6 is rotatably installed on the base 1, and a square The square column 7 is provided with a second cylinder 8, which is rotatably mounted in the horizontal section of the L-shaped bracket 2. The square column 7 is rotatably mounted with a connecting rod 9, one end of the connecting rod 9 is rotatably mounted with a supporting shaft 10, and the supporting shaft 10 is movably mounted in the arc slide rail 5. A U-shaped connecting piece 11 is provided on the top of the second cylinder 8, and a connecting block 12 is rotatably mounted in the U-shaped connecting piece 11, and a water gun head 13 is provided on the connecting block 12. A first moving rod 14 and a second moving rod 15 are slidably mounted on the base 1, and the first moving rod 14 and the second moving rod 15 are parallel and symmetrical to each other, and the first moving rod 14 is close to the second moving rod 15. A first rack 1401 is provided on one side of the rod 15, a second rack 1501 is provided on the side of the second moving rod 15 close to the first moving rod 14, a gear ring 601 is rotatably installed on the outer wall of the first cylinder 6, the gear ring 601 is meshed between the first rack 1401 and the second rack 1501, first connecting rods 1402 are rotatably installed on both ends of the first moving rod 14, and second connecting rods 1502 are rotatably installed on both ends of the second moving rod 15. The adjacent second connecting rods 1502 and the first connecting rods 1402 are symmetrically distributed in an eight-shaped shape, and the two first connecting rods 1402 and the second connecting rods 1502 are rotatably installed on the outer wall of the first cylinder 6. The same circular track 16 is rotatably installed, a screw rod 17 is threadedly connected to the vertical section of the L-shaped bracket 2, a second crank handle 1701 is provided on one end of the screw rod 17 close to the outer side of the L-shaped bracket 2, and the other end of the screw rod 17 is rotatably installed in the first moving rod 14, and connecting columns 1101 are rotatably installed in the inner walls on both sides of the U-shaped connecting member 11, and the two connecting columns 1101 are respectively installed on both sides of the connecting block 12, and cross bars 1102 are provided on both ends of the two connecting columns 1101 that are away from each other, and a spherical member 1103 is provided on the cross bar 1102, and the spherical member 1103 is located in the circular track 16.

[0034] During operation, the water hose is connected to the water gun head 13, the water valve is opened, and water flows out from the water gun head 13. When the water flow has a deviation in the horizontal direction, the first crank handle 401 is turned, so that the worm 3 drives the worm wheel 4 to rotate, and the arc-shaped slide rail 5 is driven to perform circular motion through the connection of the connecting shaft 201. Through the connection of the support shaft 10 and the connecting rod 9, the square column 7 drives the first cylinder 6 and the second cylinder 8 to perform reciprocating motion within a certain fan-shaped range, thereby driving the water gun head 13 connected to the U-shaped connecting piece 11 to adjust the angle in the horizontal direction;

[0035] When the water flow has a deviation in the vertical direction, the second crank handle 1701 is rotated to make the screw rod 17 axially spirally advanced in the L-shaped bracket 2, driving the first moving rod 14 to move in the direction of the second moving rod 15. At this time, the first rack 1401 follows the movement and drives the gear ring 601 to rotate, so that the second rack 1501 moves in the opposite direction to the movement direction of the first rack 1401, and then pulls the second moving rod 15 to move in the direction of the first moving rod 14, so that the angle between the first connecting rod 1402 and the second connecting rod 1502 gradually decreases, thereby pushing the circular track 16 upward. Since the spherical member 1103 is located in the circular track 16 and forms a crank mechanism with the cross bar 1102 and the connecting column 1101, the upward moving circular track 16 is supported by the spherical member 1103, driving the cross bar 1102 to The connecting column 1101 is used as the center of the circle to realize upward rotation. Since the connecting column 1101 is installed on the connecting block 12, the operation of adjusting the angle of the water gun head 13 in the vertical direction upward is realized. Conversely, when the water gun head 13 needs to be adjusted downward in the vertical direction, the second crank handle 1701 is turned over to reverse the screw 17, thereby pulling the first moving rod 14 back, and the meshing transmission between the first rack 1401, the gear ring 601 and the second rack 1501 is realized, so that the second moving rod 15 and the first moving rod 14 are synchronously separated, so that the angle between the first connecting rod 1402 and the second connecting rod 1502 becomes larger, thereby realizing the reduction of the height of the circular track 16, and driving the ball piece 1103 and the cross bar 1102 to rotate downward with the connecting column 1101 as the center of the circle, thereby realizing the operation of adjusting the angle of the water gun head 13 downward;

[0036] When the square column 7 drives the second cylinder 8 to rotate, the U-shaped connecting piece 11 rotates accordingly. Since the connecting column 1101 passes through the U-shaped connecting piece 11 and is connected to the connecting block 12, the water gun head 13 can be adjusted at the horizontal angle. At the same time, the connecting column 1101 drives the spherical part 1103 to slide in the circular track 16 through the connection of the cross bar 1102. Even if the height of the circular track 16 changes, the spherical part 1103 is always in the circular track 16.

[0037] Reference Figure 4In this embodiment, two baffles 203 are provided on the outer wall of the connecting shaft 201 , and the two baffles 203 are respectively located on the inner and outer sides of the vertical section of the L-shaped bracket 2 .

[0038] The two baffles 203 provide axial limitation for the portion of the connecting shaft 201 located in the L-shaped bracket 2 to prevent the connecting shaft 201 from axial displacement, thereby ensuring the meshing transmission between the worm wheel 3 and the worm 4 .

[0039] Reference Figure 4 In this embodiment, a first T-shaped shaft 602 is provided on the bottom end of the first cylinder 6 , and the first T-shaped shaft 602 is rotatably installed in the base 1 .

[0040] The first T-shaped shaft 602 provides a rotation fulcrum for the first cylinder 6 while preventing axial displacement of the first cylinder 6, thereby ensuring the horizontal height of the U-shaped connector 11 when the circular track 16 rises, thereby promoting the purpose of vertical angle adjustment of the water gun head 13.

[0041] Reference Figure 4-6 In this embodiment, a second T-shaped shaft 1001 is provided on one end of the support shaft 10, and the second T-shaped shaft 1001 is rotatably installed in the connecting rod 9. A support plate 1002 is provided on the outer wall of the support shaft 10, and the support plate 1002 is located on the inner side of the arc-shaped slide rail 5. Positioning shafts 1003 are provided on both sides of the outer wall of the other end of the support shaft 10. The two positioning shafts 1003 are eccentrically rotatably connected with the same cam handle 1004, and the cam handle 1004 is located on the outer side of the arc-shaped slide rail 5.

[0042] The second T-shaped shaft 1001 ensures the smooth rotation of the support shaft 10 and prevents the support shaft 10 from being separated from the connecting rod 9. The arrangement of the cam handle 1004, the positioning shaft 1003 and the support sheet 1002 realizes the position adjustment of the support shaft 10 in the arc-shaped slide rail 5, thereby realizing the amplitude adjustment when the angle of the water gun head 13 is adjusted;

[0043] When the water gun head 13 is relatively close to the fire source in the horizontal direction, the cam handle 1004 is rotated. Since the positioning axis 1003 is located at the point where the cam handle 1004 deviates from the center of the circle, the cam handle 1004 deviates from the arc slide rail 5 at the point where the distance from the positioning axis 1003 is the largest, so that the arc slide rail 5 loses the squeezing of the cam handle 1004, and the movement of the support shaft 10 in the arc slide rail 5 is realized. At this time, the support shaft 10 is moved to the position where the arc slide rail 5 is close to the connecting axis 201, and the cam handle 1004 is rotated to press the arc slide rail 5 against the support plate 1002. Since the position of the support shaft 10 is close to the connecting axis 201, the rotation radius of the support shaft 10 and the connecting rod 9 is relatively reduced, thereby reducing the rotation amplitude of the square column 7, thereby increasing the speed of the water gun head 13 for close-range horizontal angle adjustment.

[0044] Reference Figure 8 In this embodiment, two mutually parallel guide rails 101 are provided on the base 1 , and the first moving rod 14 and the second moving rod 15 are both slidably mounted on the two guide rails 101 .

[0045] The guide rail 101 ensures that the first moving rod 14 and the second moving rod 15 always move parallel to each other, and prevents the first moving rod 14 and the second moving rod 15 from being separated from the base 1, thereby ensuring stability during movement.

[0046] Reference Figure 8 In this embodiment, the first rack 1401 passes through the second moving rod 15 , and the second rack 1501 passes through the first moving rod 14 .

[0047] The first rack 1401 and the second rack 1501 effectively reduce the distance between the first moving rod 14 and the second moving rod 15 when they move relative to each other, thereby increasing the rising height of the circular track 16 and further increasing the maximum upward adjustment angle of the water gun head 13.

[0048] Reference Fig.11 In this embodiment, a positioning ring 603 is provided on the outer wall of the first cylinder 6 , and the gear ring 601 is rotatably mounted on the positioning ring 603 .

[0049] The positioning ring 603 provides axial limitation for the gear ring 601 to prevent the axial displacement of the gear ring 601 , thereby ensuring the meshing transmission between the gear ring 601 and the first rack 1401 and the second rack 1501 .

[0050] Reference Figure 8 In this embodiment, a threaded hole 204 is opened on the vertical section of the L-shaped bracket 2, and the screw rod 17 is threadedly connected in the threaded hole 204.

[0051] The cooperation between the threaded hole 204 and the screw rod 17 enables the rotation of the screw rod 17 to drive the first movable rod 14 to move horizontally, thereby enabling the vertical movement of the circular track 16 to achieve the vertical angle adjustment of the water gun head 13, and the engagement of the threads between the threaded hole 204 and the screw rod 17 ensures the horizontal position of the first movable rod 14 and the horizontal height of the circular track 16 without being affected by external forces, thereby ensuring the stability of the water gun head 13 after the vertical angle adjustment.

[0052] Reference Figure 8 In this embodiment, a third T-shaped shaft 1702 is provided on one end of the screw rod 17 , and the third T-shaped shaft 1702 is rotatably installed in the first moving rod 14 .

[0053] The third T-shaped shaft 1702 ensures that the movement of the first moving rod 14 and the rotation of the screw rod 17 do not interfere with each other, and provides support for pulling the first moving rod 14 to move when the screw rod 17 is reversed and recovered.

[0054] Reference Fig.11 In this embodiment, a sleeve 102 is provided on the base 1 , a slide bar 103 is slidably installed in the sleeve 102 , and the slide bar 103 is installed on the bottom end of the circular track 16 .

[0055] The cooperation between the sleeve 102 and the slide rod 103 effectively ensures the stability of the circular track 16 when it moves vertically, and prevents the circular track 16 from shaking when it moves.

[0056] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water gun for extinguishing fire, comprising a base (1), characterized in that: An L-shaped bracket (2) is arranged on the base (1), a connecting shaft (201) is rotatably mounted in the vertical section of the L-shaped bracket (2), a worm wheel (3) is arranged at one end of the connecting shaft (201), the worm wheel (3) is located on the outside of the L-shaped bracket (2), two ear plates (202) are arranged on the outside of the L-shaped bracket (2), a worm (4) is rotatably mounted between the two ear plates (202), the worm (4) and the worm wheel (3) are meshed with each other, a first crank handle (401) is arranged on one end of the worm (4), an arc-shaped slide rail (5) is arranged on the other end of the connecting shaft (201), a first cylinder (6) is rotatably mounted on the base (1), a square column (7) is arranged on the first cylinder (6), and the square column (7) A second cylinder (8) is arranged on the base (1), and the second cylinder (8) is rotatably mounted in the horizontal section of the L-shaped bracket (2); a connecting rod (9) is rotatably mounted on the square column (7), and a support shaft (10) is rotatably mounted on one end of the connecting rod (9); the support shaft (10) is movably mounted in the arc-shaped slide rail (5); a U-shaped connecting piece (11) is arranged on the top of the second cylinder (8), and a connecting block (12) is rotatably mounted in the U-shaped connecting piece (11); a water gun head (13) is arranged on the connecting block (12); a first moving rod (14) and a second moving rod (15) are slidably mounted on the base (1); the first moving rod (14) and the second moving rod (15) are parallel and symmetrical to each other, and the first moving rod (14) is close to the second moving rod A first rack (1401) is arranged on one side of the first movable rod (15), a second rack (1501) is arranged on one side of the second movable rod (15) close to the first movable rod (14), a toothed ring (601) is rotatably mounted on the outer wall of the first cylinder (6), the toothed ring (601) is meshed between the first rack (1401) and the second rack (1501), first connecting rods (1402) are rotatably mounted on both ends of the first movable rod (14), second connecting rods (1502) are rotatably mounted on both ends of the second movable rod (15), adjacent second connecting rods (1502) and first connecting rods (1402) are symmetrically distributed in an eight-shaped shape, and two of the first connecting rods (1402) and the second connecting rods (1502) are rotatably mounted. A same circular track (16) is rotatably mounted on the upper surface, a screw rod (17) is threadedly connected to the vertical section of the L-shaped bracket (2), a second crank handle (1701) is arranged on one end of the screw rod (17) close to the outer side of the L-shaped bracket (2), and the other end of the screw rod (17) is rotatably mounted in the first moving rod (14), connecting columns (1101) are rotatably mounted in the inner walls on both sides of the U-shaped connecting member (11), the two connecting columns (1101) are respectively mounted on both sides of the connecting block (12), and cross bars (1102) are arranged on both ends of the two connecting columns (1101) that are far away from each other, and a spherical member (1103) is arranged on the cross bar (1102), and the spherical member (1103) is located in the circular track (16).

2. A water gun for extinguishing fire according to claim 1, characterized in that: Two blocking pieces (203) are arranged on the outer wall of the connecting shaft (201), and the two blocking pieces (203) are respectively located on the inner and outer sides of the vertical section of the L-shaped bracket (2).

3. A water gun for extinguishing fire according to claim 1, characterized in that: A first T-shaped shaft (602) is provided on the bottom end of the first cylinder (6), and the first T-shaped shaft (602) is rotatably mounted in the base (1).

4. A water gun for extinguishing fire according to claim 1, characterized in that: A second T-shaped shaft (1001) is arranged on one end of the support shaft (10), and the second T-shaped shaft (1001) is rotatably installed in the connecting rod (9). A support plate (1002) is arranged on the outer wall of the support shaft (10), and the support plate (1002) is located on the inner side of the arc-shaped slide rail (5). Positioning shafts (1003) are arranged on both sides of the outer wall of the other end of the support shaft (10), and the two positioning shafts (1003) are eccentrically rotatably connected to the same cam handle (1004), and the cam handle (1004) is located on the outer side of the arc-shaped slide rail (5).

5. The water gun for extinguishing fire according to claim 1, characterized in that: The base (1) is provided with two mutually parallel guide rails (101), and the first moving rod (14) and the second moving rod (15) are both slidably mounted on the two guide rails (101).

6. A water gun for extinguishing fire according to claim 1, characterized in that: The first rack (1401) passes through the second moving rod (15), and the second rack (1501) passes through the first moving rod (14).

7. A water gun for extinguishing fire according to claim 1, characterized in that: A positioning ring (603) is provided on the outer wall of the first cylinder (6), and the gear ring (601) is rotatably mounted on the positioning ring (603).

8. The water gun for extinguishing fire according to claim 1, characterized in that: A threaded hole (204) is provided on the vertical section of the L-shaped bracket (2), and the screw rod (17) is threadedly connected in the threaded hole (204).

9. The water gun for extinguishing fire according to claim 1, characterized in that: A third T-shaped shaft (1702) is provided on one end of the screw rod (17), and the third T-shaped shaft (1702) is rotatably mounted in the first moving rod (14).

10. The water gun for extinguishing fire according to claim 1, characterized in that: The base (1) is provided with a sleeve (102), a slide bar (103) is slidably installed in the sleeve (102), and the slide bar (103) is installed on the bottom end of the circular track (16).

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