Spraying angle adjusting device for fire monitor

Abstract

The utility model discloses a fire monitor spraying angle adjusting device which comprises a lifting mechanism and an adjusting mechanism arranged on the lifting mechanism. The adjusting mechanism comprises a mounting frame, a first driving assembly, a second driving assembly and a mounting rod, the first driving assembly is mounted on the mounting frame in a manner of rotating up and down in the height direction, the second driving assembly is mounted on the mounting frame in a manner of rotating left and right in the horizontal direction, a first end of the mounting rod is connected with a fire monitor, and a second end of the mounting rod is connected with a second end of the fire monitor. And the second end of the mounting rod is connected with the first driving assembly and the second driving assembly. The height position of the fire monitor can be adjusted through the lifting mechanism, multi-angle adjustment is conducted on fire fighting through the adjusting mechanism, the fire monitor can directly spray water flow to the proper angle and even the optimal position of a fire source through multi-angle adjustment, the more accurate fire extinguishing effect is provided, different fire scenes can be flexibly coped with according to the actual situation, and the practicability is high. The fire extinguishing efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a fire fighting cannon spray angle adjustment device. Background Art

[0002] Firefighting technology is the field that studies and applies technologies and methods for preventing, controlling and extinguishing fires. Automatic fire-fighting cannon is a type of equipment in firefighting technology that extinguishes fires by spraying high-pressure water or other fire extinguishing agents. It utilizes components such as high-pressure pumps, nozzles and control systems to automatically detect fires and perform fire-fighting operations. In related technologies, the angle of automatic fire-fighting cannons can only be adjusted up and down, and multi-angle adjustment is not possible. Due to the inability to adjust multiple angles, the automatic fire-fighting cannon may not be able to spray water directly to the appropriate angle of the fire source when extinguishing a fire. This may result in poor water flow and failure to fully cool and extinguish the fire source, thereby prolonging the fire-fighting time and reducing the fire-fighting efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a fire monitor spray angle adjustment device.

[0004] The technical solution adopted by the utility model to solve the technical problem is: constructing a fire monitor spray angle adjustment device, including a lifting mechanism and an adjustment mechanism arranged on the lifting mechanism;

[0005] The adjustment mechanism includes a mounting frame, a first drive component, a second drive component and a mounting rod. The first drive component can be mounted on the mounting frame so as to rotate up and down in the height direction, and the second drive component can be mounted on the mounting frame so as to rotate left and right in the horizontal direction. The first end of the mounting rod is connected to the fire monitor, and the second end of the mounting rod is connected to the first drive component and the second drive component.

[0006] In some embodiments, the mounting frame includes a plate-shaped body, a first fixing plate is disposed at the left end of the plate-shaped body, a second fixing plate is disposed at the right end of the plate-shaped body, and the first fixing plate is disposed parallel to and opposite to the second fixing plate;

[0007] A third fixing plate is disposed at the upper end of the plate-shaped body, and a fourth fixing plate is disposed at the lower end of the plate-shaped body, wherein the third fixing plate and the fourth fixing plate are disposed parallel to each other.

[0008] The first driving assembly includes a first semi-ring body and a first driving member connected to the first semi-ring body, one end of the first semi-ring body is rotatably connected to the first fixing plate, and the other end of the first semi-ring body is rotatably connected to the second fixing plate;

[0009] The second driving assembly includes a second semi-ring body and a second driving member connected to the second semi-ring body, one end of the second semi-ring body is rotatably connected to the third fixing plate, and the other end of the second semi-ring body is rotatably connected to the fourth fixing plate;

[0010] The mounting rod is connected to the first semi-ring body and the second semi-ring body.

[0011] In some embodiments, the first semi-ring body is located inside the second semi-ring body, or the first semi-ring body is located outside the second semi-ring body;

[0012] The first semi-ring body is provided with a first through groove extending along the curvature direction thereof, and the second semi-ring body is provided with a second through groove extending along the curvature direction thereof;

[0013] The installation rod is disposed through a portion where the first through slot and the second through slot communicate with each other.

[0014] In some embodiments, a fixing rod is provided on the plate-like body, and a movable ball is provided on the fixing rod, and the movable ball can rotate along the axial circumference of the fixing rod;

[0015] The movable ball is provided with at least one limiting groove, and the limiting groove is arranged along the circumferential direction of the movable ball;

[0016] A limiting block is arranged on the second end of the mounting rod, and the limiting block is arranged in the limiting groove.

[0017] In some embodiments, the first driving member is disposed on the first fixing plate or the second fixing plate, and the output end of the first driving member is connected to one end of the first semi-ring body;

[0018] The second driving member is disposed on the third fixing plate or the fourth fixing plate, and an output end of the second driving member is connected to one end of the second semi-ring body.

[0019] In some embodiments, the first driving member and the second driving member are driving motors.

[0020] In some embodiments, the lifting mechanism includes a mounting platform, a base, a fixing block, a first connecting member, a second connecting member, and a transmission screw;

[0021] A sliding groove is provided at the bottom of the mounting platform, the base is spaced and arranged in parallel with the mounting platform, the fixing block is installed on the base, the first end of the first connecting member is rotatably connected to the fixing block, the second end of the first connecting member is provided with a first nut, and the first nut is connected to the transmission screw; the first end of the second connecting member is rotatably connected to the fixing block, the second end of the second connecting member is provided with a second nut, and the second nut is connected to the transmission screw;

[0022] The first nut and the second nut are connected to the sliding groove.

[0023] In some embodiments, a first slider is disposed on the first nut, and a second slider is disposed on the second nut;

[0024] The first sliding block and the second sliding block are both located in the sliding groove.

[0025] In some embodiments, a first positioning block and a second positioning block are respectively provided at both ends of the transmission screw;

[0026] The base is also provided with a first support member and a second support member, the first support member is connected to the first positioning block, and the second support member is connected to the second positioning block.

[0027] In some embodiments, the portion of the transmission screw protruding from the first positioning block is provided with a rotating disk; a plurality of limiting holes are provided at intervals on the circumferential surface of the rotating disk;

[0028] The first positioning block is also provided with a limiting assembly, which includes a positioning column, a mounting plate, a mounting cylinder, a limiting member and an elastic member;

[0029] The positioning column is installed on the first positioning block, the mounting plate is connected to the positioning column, and the mounting tube is connected to one end of the mounting plate connected to the positioning column;

[0030] The limiting member includes a columnar portion, the columnar portion is passed through the mounting tube, a limiting portion is provided on the portion of the columnar portion located in the inner cavity of the mounting tube, and the elastic member is provided between the inner top wall of the mounting tube and the limiting portion; a pressing portion is provided at the upper end of the columnar portion, and a contact portion is provided at the lower end of the columnar portion.

[0031] The implementation of the utility model has the following beneficial effects: the fire cannon spray angle adjustment device can adjust the height position of the fire cannon through the lifting mechanism, and the fire protection can be adjusted at multiple angles through the adjustment mechanism. The multi-angle adjustment can enable the fire cannon to spray water directly to the appropriate angle or even the optimal position of the fire source to provide a more accurate fire extinguishing effect. It can flexibly respond to different fire scenes according to actual conditions and improve the fire extinguishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0033] Figure 1 It is one of the structural schematic diagrams of the fire monitor spray angle adjustment device in some embodiments of the utility model;

[0034] Figure 2 This is the second structural schematic diagram of the fire monitor spray angle adjustment device in some embodiments of the utility model;

[0035] Figure 3 It is a schematic diagram of the structure of the lifting mechanism (omitting the installation platform) in some embodiments of the utility model;

[0036] Figure 4 It is a schematic diagram of the structure of the installation platform in some embodiments of the utility model;

[0037] Figure 5 is a cross-sectional view of a lifting mechanism in some embodiments of the utility model;

[0038] Figure 6 yes Figure 5 Detail of part A in FIG.

[0039] Figure 7 It is a schematic diagram of the installation of the activity ball in some embodiments of the utility model. DETAILED DESCRIPTION

[0040] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0041] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0042] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0043] The utility model discloses fire fighting equipment, which may include a fire fighting cannon spray angle adjustment device.

[0044] See also Figures 1 to 7 The utility model shows a fire monitor spray angle adjustment device, which may include a lifting mechanism 10 and an adjustment mechanism 20 arranged on the lifting mechanism 10.

[0045] The adjustment mechanism 20 may include a mounting frame 21, a first drive assembly 22, a second drive assembly 23 and a mounting rod 24. The first drive assembly 22 can be mounted on the mounting frame 21 so as to rotate up and down in the height direction, and the second drive assembly 23 can be mounted on the mounting frame 21 so as to rotate left and right in the horizontal direction. The first end of the mounting rod 24 is connected to the fire monitor 30, and the second end of the mounting rod 24 is connected to the first drive assembly 22 and the second drive assembly 23, so that the mounting rod 24 can follow the first drive assembly 22 to move up and down in the height direction to adjust the direction, and can follow the second drive assembly 23 to move left and right in the horizontal direction to adjust the direction, thereby allowing the fire monitor 30 to adjust the angle in the height direction and the horizontal direction.

[0046] In some embodiments, the mounting frame 21 may include a plate-shaped body 211, a first fixing plate 212 is disposed at the left end of the plate-shaped body 211, a second fixing plate 213 is disposed at the right end of the plate-shaped body 211, and the first fixing plate 212 and the second fixing plate 213 are disposed parallel to each other. The first fixing plate 212 and the second fixing plate 213 extend in the same direction.

[0047] The upper end of the plate-shaped body 211 is provided with a third fixing plate 214, and the lower end of the plate-shaped body 211 is provided with a fourth fixing plate 215, which are arranged parallel to each other and extend in the same direction.

[0048] Furthermore, the first drive assembly 22 includes a first semi-ring body 221 and a first drive member 222 connected to the first semi-ring body 221, one end of the first semi-ring body 221 is rotatably connected to the first fixed plate 212, and the other end of the first semi-ring body 221 is rotatably connected to the second fixed plate 213, such as by a rotating shaft.

[0049] The second driving assembly 23 includes a second semi-ring body 231 and a second driving member 232 connected to the second semi-ring body 231. One end of the second semi-ring body 231 is rotatably connected to the third fixed plate 214, and the other end of the second semi-ring body 231 is rotatably connected to the fourth fixed plate 215, such as by a rotating shaft.

[0050] The mounting rod 24 is connected to the first half ring body 221 and the second half ring body 231 .

[0051] Further, the first semi-ring body 221 may be located inside the second semi-ring body 231, or the first semi-ring body 221 may be located outside the second semi-ring body 231. The first semi-ring body 221 is provided with a first through groove 221a extending along the arc direction thereof, and the second semi-ring body 231 is provided with a second through groove 231a extending along the arc direction thereof; the mounting rod 24 is penetrated through the portion where the first through groove 221a and the second through groove 231a are connected. Preferably, the mounting rod 24 is located outside the first semi-ring body 221 and / or the second semi-ring body 231 and may be provided with a clamping block 241, such as two clamping blocks 241, and the first semi-ring body 221 and the second semi-ring body 231 are located between the two clamping blocks 241.

[0052] Combination Figure 1 , Figure 2 as well as Figure 7In some embodiments, a fixed rod 25 is provided on the plate-like body 211, and a movable ball 26 is provided on the fixed rod 25. The movable ball 26 can rotate in an axial circle along the fixed rod 25. For example, a spherical body 251 is provided in the fixed rod 25, and a movable cavity is provided in the movable ball 26, so that the movable ball 26 can rotate in a circle along the axis of the spherical body 251 to adjust the direction angle of the subsequent limiting groove 261.

[0053] Furthermore, at least one limiting groove 261 is provided on the movable ball 26 , and the limiting groove 261 is arranged along the circumferential direction of the movable ball 26 .

[0054] A limiting block 242 is disposed on the second end of the mounting rod 24 . The limiting block 242 is disposed in the limiting groove 261 , and can limit the mounting rod 24 to a certain position.

[0055] In some embodiments, the first driving member 222 is disposed on the first fixing plate 212 or the second fixing plate 213 , and an output end of the first driving member 222 is connected to one end of the first semi-ring body 221 .

[0056] The second driving member 232 is disposed on the third fixing plate 214 or the fourth fixing plate 215 , and an output end of the second driving member 232 is connected to one end of the second semi-ring body 231 .

[0057] Preferably, the first driving member 222 and the second driving member 232 are driving motors, such as servo motors, which have forward and reverse functions and high adjustment accuracy. Of course, the first driving member 222 and the second driving member 232 can also use other driving devices, which are not specifically limited here.

[0058] Combination Figures 1 to 5 As shown, in some embodiments, the lifting mechanism 10 may include a mounting platform 11, a base 12, a fixing block 13, a first connecting member 14, a second connecting member 15 and a transmission screw 16; the aforementioned mounting frame 21 may be installed on the mounting platform 11 through a support column or other structure or a bracket structure.

[0059] The mounting platform 11 is a generally rectangular flat plate structure, and a sliding groove 11a is provided at the bottom of the mounting platform 11 (see Figure 4 ), the sliding groove 11a is extended along the length direction of the mounting platform 11. The base 12 is arranged parallel to the mounting platform 11 and is located below the mounting platform 11. The base 12 can be a substantially rectangular flat plate structure.

[0060] The fixing block 13 is mounted on the base 12, the first end of the first connecting member 14 is rotatably connected to the fixing block 13, the second end of the first connecting member 14 is provided with a first nut 141, and the first nut 141 is connected to the transmission screw 16; the first end of the second connecting member 15 is rotatably connected to the fixing block 13, the second end of the second connecting member 15 is provided with a second nut 151, and the second nut 151 is connected to the transmission screw 16. The first nut 141 and the second nut 151 are connected to the sliding groove 11a.

[0061] When the transmission screw 16 rotates, it is threadedly driven with the first nut 141 and the second nut 151, so that the first connecting member 14 and the second connecting member 15 move closer to each other, and then drive the mounting platform 11 to move upward to adjust the height position of the fire monitor 30. When the first connecting member 14 and the second connecting member 15 move away from each other, the mounting platform 11 can be driven to move downward to adjust the height position of the fire monitor 30. It can be understood that the first connecting member 14 and the second connecting member 15 can use a cross arm structure. In some embodiments, the first connecting member 14 and the second connecting member 15 can directly use a hydraulic rod.

[0062] In some embodiments, a first slider 142 is provided on the first nut 141, and a second slider 152 is provided on the second nut 151; the first slider 142 and the second slider 152 are both located in the sliding groove 11a, and the width dimensions of the first slider 142 and the second slider 152 are similar to the groove width of the sliding groove 11a, which can play a limiting role.

[0063] In some embodiments, the two ends of the transmission screw 16 are respectively provided with a first positioning block 17 and a second positioning block 18; the base 12 is also provided with a first support member 171 and a second support member 181, the first support member 171 is connected to the first positioning block 17, and the second support member 181 is connected to the second positioning block 18. The first support member 171 and the second support member 181 can be elastic guide rods, which can play a role of auxiliary support and guidance.

[0064] See also Figure 6In some embodiments, a rotating disk 19 is provided on the portion of the transmission screw 16 protruding from the first positioning block 17; a plurality of limiting holes 19a are provided at intervals on the circumferential surface of the rotating disk 19; a limiting assembly 40 is also provided on the first positioning block 17, and the limiting assembly 40 includes a positioning column 41, a mounting plate 42, a mounting tube 43, a limiting member 44, and an elastic member 45. The positioning column 41 is installed on the first positioning block 17, the mounting plate 42 is connected to the positioning column 41, the mounting tube 43 is connected to one end of the mounting plate 42 connected to the positioning column 41, the limiting member 44 includes a columnar portion 441, the columnar portion 441 is penetrated through the mounting tube 43, a limiting portion 442 is provided on the portion of the columnar portion 441 located in the inner cavity of the mounting tube 43, and the elastic member 45 is provided between the inner top wall of the mounting tube 43 and the limiting portion 442; a pressing portion 443 is provided on the upper end of the columnar portion 441, and a contact portion 444 is provided on the lower end of the columnar portion 441.

[0065] When the pressing portion 443 is lifted upward, the columnar portion 441 can be moved upward and away from the limiting hole 19a. When the operator does not operate the pressing portion 443, the elastic member 45 is reset, the columnar portion 441 moves downward, and the abutment portion 444 enters the limiting hole 19a to limit the rotating disk 19 and prevent the rotating disk 19 from rotating. The elastic member 45 can keep the limiting assembly 40 in a state of limiting the rotating disk 19. Preferably, the elastic member 45 can be a spiral columnar spring.

[0066] In other embodiments, the rotating disk 19 and the limiting assembly 40 may not be provided, and one end of the transmission screw 16 may be provided with a driving motor, such as a servo motor. When the driving motor drives the transmission screw 16, it can also drive the mounting platform 11 to move up and down.

[0067] In some embodiments, the fire monitor 30 may include a fire pipe 31, a diffusion plate 32, and a plurality of support bars 33. The end of the fire pipe 31 away from the mounting rod 24 forms a nozzle. The diffusion plate 32 is connected to the end of the fire pipe 31 away from the mounting rod 24 through a plurality of support bars 33 and is arranged opposite to the nozzle. The fire pipe 31 can be connected to a source of fire extinguishing agent, and the fire extinguishing agent includes water or other fire extinguishing chemicals. The fire pipe 31 may be provided with an interface to connect with a water pipe, etc., and the water pipe is connected to a water source, a pump station, a nozzle, etc. The diffusion plate 32 can adjust the water flow shape and range of the nozzle spray, and the diffusion plate 32 may be provided with a plurality of holes. The number of the support bars 33 may be five, which are used to fix the diffusion plate 32 to prevent the diffusion plate 32 from shifting.

[0068] It can be understood that the fire cannon spray angle adjustment device can adjust the height position of the fire cannon 30 through the lifting mechanism 10, and adjust the fire cannon 30 at multiple angles through the adjustment mechanism 20. The multi-angle adjustment can enable the fire cannon 30 to spray water directly to the appropriate angle or even the optimal position of the fire source to provide a more accurate fire extinguishing effect, and can flexibly respond to different fire scenes according to actual conditions, thereby improving the fire extinguishing efficiency.

[0069] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A fire monitor spray angle adjustment device, characterized in that: It comprises a lifting mechanism (10) and an adjusting mechanism (20) arranged on the lifting mechanism (10); The adjustment mechanism (20) comprises a mounting frame (21), a first drive assembly (22), a second drive assembly (23) and a mounting rod (24); the first drive assembly (22) can be mounted on the mounting frame (21) so as to be rotatable up and down in a height direction; the second drive assembly (23) can be mounted on the mounting frame (21) so as to be rotatable left and right in a horizontal direction; a first end of the mounting rod (24) is connected to a fire monitor (30); and a second end of the mounting rod (24) is connected to the first drive assembly (22) and the second drive assembly (23).

2. The fire monitor spray angle adjustment device according to claim 1, characterized in that: The mounting frame (21) comprises a plate-shaped body (211), a first fixing plate (212) is provided at the left end of the plate-shaped body (211), a second fixing plate (213) is provided at the right end of the plate-shaped body (211), and the first fixing plate (212) and the second fixing plate (213) are arranged parallel to each other; A third fixing plate (214) is provided at the upper end of the plate-shaped body (211), a fourth fixing plate (215) is provided at the lower end of the plate-shaped body (211), and the third fixing plate (214) and the fourth fixing plate (215) are arranged parallel to each other. The first driving assembly (22) comprises a first semi-ring body (221) and a first driving member (222) connected to the first semi-ring body (221), one end of the first semi-ring body (221) is rotatably connected to the first fixing plate (212), and the other end of the first semi-ring body (221) is rotatably connected to the second fixing plate (213); The second driving assembly (23) comprises a second semi-ring body (231) and a second driving member (232) connected to the second semi-ring body (231), one end of the second semi-ring body (231) is rotatably connected to the third fixing plate (214), and the other end of the second semi-ring body (231) is rotatably connected to the fourth fixing plate (215); The mounting rod (24) is connected to the first semi-ring body (221) and the second semi-ring body (231).

3. The fire monitor spray angle adjustment device according to claim 2, characterized in that: The first semi-ring body (221) is located inside the second semi-ring body (231), or the first semi-ring body (221) is located outside the second semi-ring body (231); The first semi-ring body (221) is provided with a first through groove (221a) extending along the curvature direction thereof, and the second semi-ring body (231) is provided with a second through groove (231a) extending along the curvature direction thereof; The mounting rod (24) is disposed through a portion where the first through slot (221a) and the second through slot (231a) are connected.

4. The fire monitor spray angle adjustment device according to claim 3, characterized in that: The plate-shaped body (211) is provided with a fixed rod (25), and the fixed rod (25) is provided with a movable ball (26), and the movable ball (26) can rotate along the axial circumference of the fixed rod (25); At least one limiting groove (261) is provided on the movable ball (26), and the limiting groove (261) is arranged along the circumferential direction of the movable ball (26); A limiting block (242) is provided on the second end of the mounting rod (24), and the limiting block (242) is arranged in the limiting groove (261).

5. The fire monitor spray angle adjustment device according to claim 4, characterized in that: The first driving member (222) is arranged on the first fixing plate (212) or the second fixing plate (213), and the output end of the first driving member (222) is connected to one end of the first semi-ring body (221); The second driving member (232) is arranged on the third fixing plate (214) or the fourth fixing plate (215), and the output end of the second driving member (232) is connected to one end of the second semi-ring body (231).

6. The fire monitor spray angle adjustment device according to claim 5, characterized in that: The first driving member (222) and the second driving member (232) are driving motors.

7. The fire monitor spray angle adjustment device according to any one of claims 1 to 6, characterized in that: The lifting mechanism (10) comprises a mounting platform (11), a base (12), a fixing block (13), a first connecting member (14), a second connecting member (15) and a transmission screw (16); A sliding groove (11a) is provided at the bottom of the mounting platform (11); the base (12) and the mounting platform (11) are arranged in parallel with each other at intervals; the fixing block (13) is installed on the base (12); the first end of the first connecting member (14) is rotatably connected to the fixing block (13); the second end of the first connecting member (14) is provided with a first nut (141); the first nut (141) is connected to the transmission screw (16); the first end of the second connecting member (15) is rotatably connected to the fixing block (13); the second end of the second connecting member (15) is provided with a second nut (151); the second nut (151) is connected to the transmission screw (16); The first nut (141) and the second nut (151) are connected to the sliding groove (11a).

8. The fire monitor spray angle adjustment device according to claim 7, characterized in that: The first nut (141) is provided with a first sliding block (142), and the second nut (151) is provided with a second sliding block (152); The first sliding block (142) and the second sliding block (152) are both located in the sliding groove (11a).

9. The fire monitor spray angle adjustment device according to claim 8, characterized in that: A first positioning block (17) and a second positioning block (18) are respectively provided at two ends of the transmission screw rod (16); The base (12) is also provided with a first support member (171) and a second support member (181); the first support member (171) is connected to the first positioning block (17); and the second support member (181) is connected to the second positioning block (18).

10. The fire monitor spray angle adjustment device according to claim 9, characterized in that: The portion of the transmission screw (16) protruding from the first positioning block (17) is provided with a rotating disk (19); a plurality of limiting holes (19a) are provided at intervals on the circumferential surface of the rotating disk (19); The first positioning block (17) is also provided with a limiting assembly (40), and the limiting assembly (40) comprises a positioning column (41), a mounting plate (42), a mounting cylinder (43), a limiting member (44) and an elastic member (45); The positioning column (41) is installed on the first positioning block (17), the mounting plate (42) is connected to the positioning column (41), and the mounting tube (43) is connected to one end of the mounting plate (42) connected to the positioning column (41); The limiting member (44) comprises a columnar portion (441), the columnar portion (441) is passed through the mounting tube (43), a limiting portion (442) is provided on the portion of the columnar portion (441) located in the inner cavity of the mounting tube (43), and the elastic member (45) is provided between the inner top wall of the mounting tube (43) and the limiting portion (442); a pressing portion (443) is provided at the upper end of the columnar portion (441), and a contact portion (444) is provided at the lower end of the columnar portion (441).

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