Rotary limiting structure of fire monitor
By setting a limit structure with fixed columns and limit switches on the fire gun, the problem of winding damage and fire extinguishing blind spots during rotation of the fire gun is solved, and the equipment protection and complete coverage of the fire extinguishing range are achieved.
Patent Information
- Application Number
- CN202422217984.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-10
AI Technical Summary
Existing fire guns are prone to winding and damage equipment when they rotate continuously, and when the rotation angle is insufficient, a fire extinguishing blind spot will be formed, affecting the fire extinguishing effect.
A fire gun rotary limit structure is designed, including fixed columns, dials and limit switches. Through the abutment between the dials and the fixed columns and the induction of the limit switch, the fire gun stops in time after turning one circle, and continues to rotate at a certain angle after turning one circle, avoiding winding and forming a blind spot for fire extinguishing.
Effectively prevent fire guns from damaging equipment due to winding, while avoiding the formation of fire extinguishing blind spots, ensuring full coverage of fire extinguishing effects.
Smart Images
Figure CN223158745U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire-fighting equipment, and more particularly to a rotary limit structure for a fire-fighting cannon. Background Art
[0002] A fire-fighting cannon is an important fire-fighting equipment for extinguishing fires at a long distance. Fire-fighting cannons are divided into two major series: fire-fighting water cannons (PS) and fire-fighting foam cannons (PP). A fire-fighting water cannon is a fire-fighting equipment that sprays water to extinguish general solid substances at a long distance. A fire-fighting foam cannon is a fire-fighting equipment that sprays air foam to extinguish fires of Class A, B, and C liquids at a long distance. Generally, a fire-fighting cannon is connected to the water inlet pipe of a fire truck through a rotating device.
[0003] After research by the inventor, it is found that when the existing fire-fighting cannon rotates continuously, it is easy to wind the wire and damage the equipment. When a limit structure is set for the fire-fighting cannon, the horizontal rotation angle of the fire-fighting cannon is insufficient, resulting in a fire-extinguishing blind area and affecting the fire-extinguishing effect. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a rotary limit structure for a fire-fighting cannon, which can stop in time after the fire-fighting cannon rotates a certain angle to prevent wire winding and equipment damage; after the fire-fighting cannon rotates one circle, it can continue to rotate a certain angle to avoid forming a fire-extinguishing blind area.
[0005] The embodiments of the utility model are implemented as follows:
[0006] The utility model provides a rotary limit structure for a fire-fighting cannon, including:
[0007] A fire-fighting cannon, which is installed on the water inlet pipe and rotatably connected to the water inlet pipe;
[0008] A rotating disk, which is fixedly connected to the fire-fighting cannon;
[0009] A limit component, which includes a fixed column, a bar and a limit switch. The bar is rotatably installed on the rotating disk. The fixed column is relatively fixed to the water inlet pipe. The limit switch is fixed on the rotating disk. The fixed column and the limit switch are respectively arranged on both sides of the bar. When the rotating disk rotates relative to the water inlet pipe, one end of the bar can abut against the fixed column to make the bar rotate, and then the other end of the bar approaches the limit switch.
[0010] In an alternative embodiment, the limit switch includes a first limit switch and a second limit switch. One end of the bar is arranged between the first limit switch and the second limit switch. When the bar rotates relative to the rotating disk, one end of the bar approaches the first limit switch or the second limit switch.
[0011] In an alternative embodiment, the limiting component further includes a limiting post, which is fixed on the rotating disk. The limiting post is arranged on the side of the bar away from the limit switch. When one end of the bar approaches the limit switch, the other end of the bar abuts against the limiting post to prevent the bar from continuing to rotate.
[0012] In an alternative embodiment, the limiting post includes a first limiting post and a second limiting post, both of which are fixed on the rotating disk. The end of the bar away from the limit switch is arranged between the first limiting post and the second limiting post. When one end of the bar approaches the first limit switch, the other end of the bar abuts against the first limiting post; when one end of the bar approaches the second limit switch, the other end of the bar abuts against the second limiting post.
[0013] In an alternative embodiment, the fire monitor rotation limiting structure further includes a driving component. When the limit switch senses the bar, the driving component drives the fire monitor to rotate in the reverse direction.
[0014] In an alternative embodiment, an adjustment hole is provided on the rotating disk, and the limit switch is fixed on the rotating disk through the adjustment hole. The adjustment hole is used to adjust the position of the limit switch.
[0015] In an alternative embodiment, the driving component includes a small gear, a large gear and a motor. The large gear is fixed on the water inlet pipe, the small gear meshes with the large gear, the motor is fixed on the rotating disk, and the motor is drivingly connected to the small gear.
[0016] In an alternative embodiment, the fixing post is fixed on the large gear.
[0017] In an alternative embodiment, a gap is provided between the large gear and the rotating disk, and the bar is arranged in the gap.
[0018] In an alternative embodiment, a sealing ring is provided between the water inlet pipe and the fire monitor.
[0019] The beneficial effects of the embodiments of the present utility model are:
[0020] The fire cannon rotation limit structure of the present utility model includes a water inlet pipe, a fire cannon, a rotating disk, a driving component, and a limit component. The water inlet pipe is rotatably connected to the fire cannon. The rotating disk is fixedly connected to the fire cannon. The driving component is used to drive the fire cannon to rotate relative to the water inlet pipe. The limit component is arranged on the rotating disk. The limit component includes a fixed column, a bar, and a limit switch. The bar is rotatably installed on the rotating disk. The fixed column is relatively fixed to the water inlet pipe. The limit switch is fixed on the rotating disk. When the rotating disk rotates relative to the water inlet pipe, one end of the bar can abut against the fixed column, causing the bar to rotate, and further causing the other end of the bar to approach the limit switch.
[0021] By fixedly arranging the fixed column, when the rotating disk rotates one circle relative to the fixed column, one end of the bar abuts against the fixed column. When the rotating disk continues to rotate, the bar rotates relative to the rotating disk under the action of the fixed column, and the other end of the bar approaches the limit switch, so that the limit switch senses the bar and stops the rotation of the rotating disk. By setting the limit component, the fire cannon can stop in time after rotating a certain angle to prevent winding and damage to the equipment; after the fire cannon rotates one circle, it can continue to rotate a certain angle to avoid forming a fire extinguishing blind area. Description of the Drawings
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0023] Figure 1 It is a schematic diagram of the first perspective structure of the fire cannon rotation limit structure provided by the embodiment of the present utility model;
[0024] Figure 2 It is a schematic diagram of the second perspective structure of the fire cannon rotation limit structure provided by the embodiment of the present utility model.
[0025] Icons: 100 - Fire cannon rotation limit structure; 10 - Water inlet pipe; 20 - Driving component; 21 - Large gear; 22 - Small gear; 23 - Motor; 30 - Fire cannon; 31 - Rotating disk; 40 - Limit component; 41 - Fixed column; 42 - Bar; 421 - Mounting column; 43 - Limit switch; 431 - First limit switch; 432 - Second limit switch; 44 - Limit post; 441 - First limit post; 442 - Second limit post. Detailed Embodiments
[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.
[0027] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.
[0028] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.
[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.
[0030] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0031] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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 specific circumstances.
[0032] Please refer toFigure 1 and Figure 2 Figure 2 , this embodiment provides a fire cannon rotation limit structure 100, which includes a fire cannon 30, a rotating disk 31, a driving component 20, and a limit component 40. The fire cannon 30 is installed on the water inlet pipe 10 and is rotatably connected to the water inlet pipe 10. The rotating disk 31 is fixedly connected to the fire cannon 30. The driving component 20 is used to drive the fire cannon 30 to rotate relative to the water inlet pipe 10. The limit component 40 is arranged on the rotating disk 31. The limit component 40 includes a fixed column 41, a bar 42, and a limit switch 43. The bar 42 is rotatably installed on the rotating disk 31. The fixed column 41 is relatively fixed to the water inlet pipe 10. The limit switch 43 is fixed on the rotating disk 31. When the rotating disk 31 rotates relative to the water inlet pipe 10, one end of the bar 42 can abut against the fixed column to cause the bar 42 to rotate, and then the other end of the bar 42 approaches the limit switch 43.
[0033] It can be understood that the fire cannon rotation limit structure 100 of this embodiment is used to be installed on a fire truck. The water inlet pipe 10 is fixedly installed on the fire truck. The water inlet pipe 10 is rotatably connected to the fire cannon 30 and is used to supply water to the fire cannon 30. The fire cannon 30 is rotatably installed on the fire truck so as to rotate and extinguish fires in all directions. When the fire cannon 30 rotates one circle, it needs to rotate in the reverse direction. Therefore, whether the fire cannon 30 rotates forward or backward, when the fire cannon 30 rotates to the limit position, there is a fire extinguishing blind area at this position.
[0034] To avoid forming a fire extinguishing blind area, in this embodiment, the fixed column 41 is fixedly arranged. When the rotating disk 31 rotates one circle relative to the fixed column 41, one end of the bar 42 abuts against the fixed column 41. When the rotating disk 31 continues to rotate, the bar 42 rotates relative to the rotating disk 31 under the action of the fixed column 41, and the other end of the bar 42 approaches the limit switch 43, so that the limit switch 43 senses the bar 42 and stops the rotation of the rotating disk 31.
[0035] The fire cannon rotation limit structure 100 of this embodiment can make the fire cannon 30 stop in time after rotating a certain angle, prevent the fire cannon 30 from rotating too many turns, so as to avoid winding and damage to the equipment; it can also continue to rotate a certain angle after the fire cannon 30 rotates 360 degrees to avoid a fire extinguishing blind area.
[0036] It can be understood that the bar 42 is rotatably connected to the rotating disk 31 through an installation column 421. The installation column 421 is fixed on the rotating disk 31. The middle part of the bar 42 is rotatably connected to the installation column 421 so that one end of the bar 42 abuts against the fixed column 41. When the rotating disk 31 continues to rotate, the bar 42 rotates around the installation column 421 under the action of the fixed column 41, and the other end of the bar 42 abuts against the limit switch 43.
[0037] Specifically, in this embodiment, the limit switch 43 includes a first limit switch 431 and a second limit switch 432. One end of the bar 42 is disposed between the first limit switch 431 and the second limit switch 432. When the bar 42 rotates relative to the rotating disk 31, one end of the bar 42 approaches the first limit switch 431 or the second limit switch 432.
[0038] It can be understood that one end of the bar 42 is initially located on the second side of the fixed column 41. When the rotating disk 31 rotates clockwise for one circle, one end of the bar 42 abuts against the first side of the fixed column 41. When the rotating disk 31 continues to rotate, the bar 42 rotates around the mounting column 421 under the action of the fixed column 41. The other end of the bar 42 approaches the second limit switch 432. When the second limit switch 432 senses that the bar 42 is in place, it sends a signal and the rotating disk 31 stops rotating. At this time, one end of the bar 42 is located on the first side of the fixed column 41. When the rotating disk 31 rotates counterclockwise for one circle, one end of the bar 42 abuts against the second side of the fixed column 41. When the rotating disk 31 continues to rotate, the bar 42 rotates around the mounting column 421 under the action of the fixed column 41. The other end of the bar 42 approaches the first limit switch 431. When the first limit switch 431 senses that the bar 42 is in place, it sends a signal and the rotating disk 31 stops rotating.
[0039] Further, when the limit switch 43 senses the bar 42, the driving assembly 20 drives the fire monitor 30 to rotate in the reverse direction. Specifically, when the limit switch 43 senses that the bar 42 is in place, that is, when one end of the bar 42 abuts against the limit switch 43 and triggers the paddle of the limit switch 43, the motor 23 rotates in the reverse direction, thereby driving the rotating disk 31 and the fire monitor 30 to rotate in the reverse direction.
[0040] To prevent the bar 42 from rotating excessively and hitting the limit switch 43 and causing damage, in this embodiment, the limit assembly 40 further includes a limit post 44. The limit post 44 is fixed on the rotating disk 31. The limit post 44 is disposed on the side of the bar 42 away from the limit switch 43. When one end of the bar 42 approaches the limit switch 43, the other end of the bar 42 abuts against the limit post 44 to prevent the bar 42 from continuing to rotate.
[0041] Specifically, the limit post 44 includes a first limit post 441 and a second limit post 442. Both the first limit post 441 and the second limit post 442 are fixed on the rotating disk 31. The end of the bar 42 away from the limit switch 43 is disposed between the first limit post 441 and the second limit post 442. When one end of the bar 42 approaches the first limit switch 431, the other end of the bar 42 abuts against the first limit post 441. When one end of the bar 42 approaches the second limit switch 432, the other end of the bar 42 abuts against the second limit post 442.
[0042] In order to adjust the rotation angle of the fire monitor 30, in this embodiment, adjustment holes are provided on the rotating disk 31. The limit switch 43 is fixed to the rotating disk 31 through the adjustment holes. The adjustment holes are used to adjust the position of the limit switch 43. Specifically, the adjustment holes are strip-shaped holes, and the limit switch 43 is fixed by bolts passing through the adjustment holes. It can be understood that by adjusting the position of the limit switch 43, the contact position between the bar 42 and the limit switch 43 can be adjusted, thereby adjusting the rotation angle of the rotating disk 31. It should be noted that the rotation angle of the fire monitor 30 adjusted in this embodiment refers to the angle of continued rotation after the fire monitor 30 rotates one full circle.
[0043] In order to achieve the relative rotation between the fire monitor 30 and the water inlet pipe 10, the drive assembly 20 includes a pinion 22, a large gear 21, and a motor 23. The large gear 21 is fixed to the water inlet pipe 10. The pinion 22 meshes with the large gear 21. The motor 23 is fixed to the rotating disk 31. The motor 23 is drivingly connected to the pinion 22 and is used to drive the pinion 22 to rotate. It can be understood that the motor 23 drives the pinion 22 to rotate on its own axis, and the pinion 22 revolves around the large gear 21, thereby driving the rotating disk 31 and the fire monitor 30 to rotate relative to the water inlet pipe 10.
[0044] Furthermore, the fixing column 41 is fixed to the large gear 21. It can be understood that in this embodiment, the water inlet pipe 10, the large gear 21, and the fixing column 41 are all stationary. The pinion 22 rotates on its own axis while revolving around the large gear 21. The rotating disk 31 and the fire monitor 30 rotate coaxially relative to the water inlet pipe 10.
[0045] Still further, a gap is provided between the large gear 21 and the rotating disk 31. The bar 42 and the fixing column 41 are arranged in the gap. The width of the gap is greater than the width of the bar 42 to prevent mechanical interference between the bar 42 and the large gear 21. The fixing column 41 is fixed to the side of the large gear 21 facing the rotating disk 31 and extends into the gap.
[0046] In order to enhance the sealing performance between the water inlet pipe 10 and the fire monitor 30, in this embodiment, a sealing ring is provided between the water inlet pipe 10 and the fire monitor 30.
[0047] The beneficial effects of the fire monitor rotation limit structure 100 according to the embodiment of the present utility model are:
[0048] The rotation limit structure 100 of this fire monitor is fixed by fixedly arranging the fixed column 41. When the rotating disk 31 rotates one circle relative to the fixed column 41, one end of the bar 42 abuts against the fixed column 41. When the rotating disk 31 continues to rotate, the bar 42 rotates relative to the rotating disk 31 under the action of the fixed column 41, and the other end of the bar 42 approaches the limit switch 43, so that the limit switch 43 senses the bar 42 and stops the rotation of the rotating disk 31. By setting the limit component 40, the fire monitor 30 can be stopped in time after rotating one circle to prevent wire winding and damage to the equipment; after the fire monitor 30 rotates one circle, it can continue to rotate a certain angle to avoid forming a fire extinguishing blind area.
[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A rotating limit structure for a fire monitor, characterized in that, Comprising: A fire fighting gun, which is installed on the water inlet pipe and is rotatably connected to the water inlet pipe; A rotating disk, which is fixedly connected to the fire fighting gun; A limiting component, which includes a fixed column, a dial bar and a limit switch. The dial bar is rotatably installed on the rotating disk. The fixed column is relatively fixed to the water inlet pipe. The limit switch is fixed on the rotating disk. The fixed column and the limit switch are respectively arranged on both sides of the dial bar. When the rotating disk rotates relative to the water inlet pipe, one end of the dial bar can abut against the fixed column to make the dial bar rotate, and then the other end of the dial bar approaches the limit switch.
2. The fire monitor rotation limit structure according to claim 1, characterized in that The limit switch includes a first limit switch and a second limit switch. One end of the dial bar is arranged between the first limit switch and the second limit switch. When the dial bar rotates relative to the rotating disk, one end of the dial bar approaches the first limit switch or the second limit switch.
3. The fire monitor rotation limit structure according to claim 2, characterized in that, The limiting component further includes a limit post, which is fixed on the rotating disk. The limit post is arranged on the side of the dial bar away from the limit switch. When one end of the dial bar approaches the limit switch, the other end of the dial bar abuts against the limit post to prevent the dial bar from continuing to rotate.
4. The fire monitor rotation limit structure according to claim 3, characterized in that, The limit post includes a first limit post and a second limit post. Both the first limit post and the second limit post are fixed on the rotating disk. The end of the dial bar away from the limit switch is arranged between the first limit post and the second limit post. When one end of the dial bar approaches the first limit switch, the other end of the dial bar abuts against the first limit post; when one end of the dial bar approaches the second limit switch, the other end of the dial bar abuts against the second limit post.
5. The fire monitor rotation limit structure according to claim 1, characterized in that The fire fighting gun rotation limiting structure further includes a driving component. When the limit switch senses the dial bar, the driving component drives the fire fighting gun to rotate in the reverse direction.
6. The rotating limit structure of the fire monitor according to claim 1, wherein An adjustment hole is provided on the rotating disk. The limit switch is fixed on the rotating disk through the adjustment hole. The adjustment hole is used to adjust the position of the limit switch.
7. The fire monitor rotation limit structure according to claim 5, characterized in that, The driving component includes a small gear, a large gear and a motor. The large gear is fixed on the water inlet pipe. The small gear meshes with the large gear. The motor is fixed on the rotating disk. The motor is drivingly connected to the small gear.
8. The fire monitor rotation limit structure according to claim 7, wherein, The fixed column is fixed on the large gear.
9. The fire monitor rotation limit structure according to claim 7, wherein, A gap is provided between the large gear and the rotating disk. The dial bar is arranged in the gap.
10. The fire monitor rotation limit structure according to claim 1, characterized in that, A sealing ring is provided between the water inlet pipe and the fire fighting gun.