Fire joint

Abstract

The fire-fighting connector comprises a fire-fighting cabinet body, a fire hydrant, a fire-fighting hose reel, a driving assembly, a limiting column and two limiting plates, the fire hydrant is fixedly connected into the fire-fighting cabinet body, a connector shell is rotationally connected to the fire hydrant, the fire-fighting hose reel is rotationally arranged on the fire-fighting cabinet body, and the driving assembly is arranged on the fire-fighting hose reel. The fire hose reel is arranged on one side of the fire hydrant, the driving assembly is arranged between the connector shell and the fire hose reel and used for driving the connector shell to rotate when the fire hose reel is driven, and the driving assembly comprises a differential mechanism and a transmission mechanism. The differential mechanism is arranged between the fire hose reel and the inner wall of the fire cabinet body, the transmission mechanism is used for synchronously transmitting power transmitted by the differential mechanism to the connector shell, and the limiting column is fixedly connected with the side edge of the connector shell. According to the technical scheme, the working stability of the fire-fighting equipment is improved, and the operation convenience and the overall use efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting connectors, and particularly to a fire-fighting connector. Background Art

[0002] A fire-fighting connector is a device used to connect a hose with another hose or a fire hydrant. In some special places, such as narrow indoor spaces, the installation of fire-fighting equipment is often restricted by environmental conditions. Especially the configuration of fire hydrants and fire-fighting connectors usually needs to consider the size of the installation space and the convenience of using fire-fighting equipment. Traditional fixed fire-fighting connectors require a large space for operation, which not only affects the layout of fire-fighting equipment but also may limit the quick use and storage of fire hoses. As an improved solution, a rotary fire hydrant allows the fire-fighting connector to rotate inward when not in use to save space and avoid the fire hydrant interface protruding or occupying too much space, meeting the requirements of narrow spaces.

[0003] In the prior art, a Chinese invention patent with the publication number: CN118615627B, a fire-fighting connector capable of quick connection, includes a fire cabinet and a fire hydrant body, as well as a connector housing rotatably connected to the fire hydrant body. A base is fixedly connected to the inner bottom end of the fire cabinet, and the fire hydrant body is fixedly connected to the top of the base. A cabinet door with a door lock is hingedly connected to the front side of the fire cabinet. A connecting pipe is welded to the side wall of the connector housing and is integrally communicated with the inside of the connector housing. A male connector for connecting with the female interface on the hose is fixedly connected to the outer wall of the connecting pipe. A toothed ring is fixedly connected to the outer bottom end of the outer wall of the connector housing. A bottom frame is bolted to the top of the base. A rack meshing with the toothed ring is slidably connected to the inside of the bottom frame. A chute is formed through the top of the bottom frame, and a pressing block is slidably connected to the inside of the chute. An inclined groove is obliquely formed in the side wall of the pressing block near one end of the fire hydrant body. A connecting plate is fixedly connected between the bottom of the pressing block and the side wall of the rack. A plurality of upper springs are fixedly connected between the side wall of the connecting plate and the inside of the bottom frame. A pressing rod is arranged on the side wall of the inclined groove near one side of the fire hydrant body and is in mutual extrusion with the pressing block. An installation plate is arranged on the side wall of the pressing rod, and the installation plate is fixedly connected to the side wall of the cabinet door. A limiting mechanism for fixing the position of the connector housing is arranged on the male connector.

[0004] The design realizes the rotation function of the fire fighting joint through the transmission relationship between the extrusion rod and the extrusion block driven by the opening and closing of the cabinet door, ensuring the smooth connection with the fire hose. However, in actual applications, especially in emergency situations such as fires, there are several important problems that affect the emergency performance of the equipment. First of all, the cabinet door may be stuck due to high temperature or other factors during a fire, resulting in failure to open smoothly. When the cabinet door is stuck, the joint cannot be rotated by the opening and closing of the cabinet door. Even if firefighters may break the glass for emergency treatment, but even if the glass is broken, due to the stuck cabinet door itself, the joint still cannot rotate, which will directly affect the use of fire fighting equipment, further delaying the timing of fire extinguishing operations and reducing the practicality and fire extinguishing efficiency of the equipment. In addition, the mutual force between the cabinet door and the spring on one side of the extrusion block when the cabinet door is closed may also cause excessive pressure on the cabinet door lock core, resulting in damage to the lock core, further affecting the normal function of the cabinet door and increasing the risk of equipment failure. Summary of the Invention

[0005] The main object of the present invention is to provide a fire fighting joint, aiming to improve the working stability of fire fighting equipment, enhance the convenience of operation and the overall use efficiency.

[0006] To achieve the above object, a fire fighting joint proposed by the present invention includes: A fire fighting cabinet body and a fire hydrant, the fire hydrant is fixedly connected inside the fire fighting cabinet body, and a joint housing is rotatably connected to the fire hydrant; A fire hose reel, the fire hose reel is rotatably arranged on the fire fighting cabinet body, and the fire hose reel is arranged on one side of the fire hydrant; A driving assembly, the driving assembly is arranged between the joint housing and the fire hose reel, and is used to drive the fire hose reel to drive the joint housing to rotate. The driving assembly includes a differential mechanism and a transmission mechanism. The differential mechanism is arranged between the fire hose reel and the inner wall of the fire fighting cabinet body, and the transmission mechanism is used to synchronously transmit the power transmitted by the differential mechanism to the joint housing; A limiting column and two limiting plates, the limiting column is fixedly connected to the side of the joint housing, and each limiting plate is fixedly connected to the bottom wall of the fire fighting cabinet body. The included angle between the sides of the two limiting plates is used to limit the flipping angle of the joint housing.

[0007] In a possible implementation manner, the differential mechanism includes: A support frame, the support frame is fixedly connected to the inner wall of the fire fighting cabinet body, and the fire hose reel is rotatably connected to the support frame; A driving column, the driving column is rotatably connected to the support frame, and a first gear is fixedly connected to the driving column; A receiving tray, the receiving tray is fixedly connected to the driving column, and a plurality of receiving columns are fixedly connected to the receiving tray. One end of each receiving column away from the receiving tray is rotatably connected to a second gear, and each second gear is meshed with the first gear; A linkage column, the linkage column is rotatably connected to the inner wall of the fire cabinet, and a third gear is fixedly connected to the linkage column, and the third gear is meshed with each second gear.

[0008] In a possible implementation manner, the transmission mechanism includes: A first pulley and a second pulley, the first pulley is fixedly connected to the joint housing, the second pulley is rotatably connected to the bottom wall of the fire cabinet, and a transmission belt is sleeved between the first pulley and the second pulley; A fourth gear, the fourth gear is rotatably connected between the fire cabinet body and the second pulley and is fixedly connected to the second pulley; A fifth gear, the fifth gear is rotatably connected to the inner wall of the fire cabinet, and the fourth gear is meshed with the fifth gear; A first synchronous pulley and a second synchronous pulley, both the first synchronous pulley and the second synchronous pulley are rotatably connected to the inner wall of the fire cabinet. The first synchronous pulley is coaxially and fixedly connected to the linkage column, the second synchronous pulley is coaxially and fixedly connected to the fifth gear, and a synchronous belt is meshed on the first synchronous pulley and the second synchronous pulley.

[0009] In a possible implementation manner, a protective plate is fixedly connected to the fire cabinet body, and is used to protect the components below the protective plate.

[0010] In a possible implementation manner, a threaded surface is provided at one end of the driving column away from the linkage column, and a transmission ring is threadedly connected to the threaded surface. A plurality of transmission plates are hinged to the transmission ring, and a transmission block is hinged to one end of each transmission plate away from the transmission ring; A plurality of transmission grooves are provided on the fire hose reel, each transmission block is slidably abutted against the inner wall of each transmission groove, and a transmission roller is rotatably connected to each transmission block.

[0011] In a possible implementation manner, a driving handle is fixedly connected to one end of the driving column away from the linkage column.

[0012] The technical solution of the present invention enables users to efficiently convert the rotational force applied to the fire hose reel into the rotational torque of the joint housing through the cooperation of the driving component with the joint housing and the fire hose reel. This simplifies the steps for users to connect the water hose to the joint housing during operation, enhancing the convenience of operation and significantly improving the overall usage efficiency. Especially in emergency situations, firefighters can complete the connection and extraction of the water hose more quickly, saving valuable time and ensuring a more rapid response to emergency rescue needs, thereby enhancing the speed and effectiveness of emergency response. At the same time, the transmission relationship between the joint housing and the fire hose reel is independent. When the rotation angle of the joint housing reaches the set limit, it will not interfere with the rotation of the fire hose reel, enabling users to continue the extraction or winding operation of the water hose without being affected by the rotation limit of the joint housing, ensuring the smooth use of the fire hose reel, enhancing the flexibility and efficiency of operation, improving the working stability of fire-fighting equipment, enhancing the convenience of operation, and improving the overall usage efficiency. Especially in emergency situations, it can save valuable time for firefighters and ensure a faster emergency response BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings

[0014] Figure 1 It is a schematic enlarged view of a fire-fighting joint structure of the present invention Figure 2 It is Figure 1 an enlarged view of A in Figure 3 It is a schematic enlarged view of a partial structure of a fire-fighting joint of the present invention Figure 1 ; Figure 4 It is Figure 3 an enlarged view of B in Figure 5 It is a schematic enlarged view of a partial structure of a fire-fighting joint of the present invention Figure 2 ; Figure 6 It is Figure 5 an enlarged view of C in

[0015] Explanation of the reference numerals in the drawings 11. Fire cabinet; 12. Fire hydrant; 13. Connector housing; 14. Fire hose reel; 141. Transmission groove; 15. Limit post; 16. Limit plate; 17. Protection plate; 21. Support frame; 22. Driving post; 221. Threaded surface; 222. Transmission ring; 223. Transmission plate; 224. Transmission block; 225. Transmission roller; 23. First gear; 24. Receiving plate; 25. Receiving post; 26. Second gear; 27. Linking post; 28. Third gear; 29. Driving handle; 31. First pulley; 32. Second pulley; 33. Transmission belt; 34. Fourth gear; 35. Fifth gear; 36. First synchronous pulley; 37. Second synchronous pulley; 38. Synchronous belt.

[0016] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0017] In order to make the object, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Embodiment

[0018] The present invention provides a fire connector.

[0019] Referring to Figures 1 to 6 , in the embodiment of the present invention, the fire connector includes a fire cabinet 11 and a fire hydrant 12. The fire hydrant 12 is fixedly connected inside the fire cabinet 11, and a connector housing 13 is rotatably connected to the fire hydrant 12; A fire hose reel 14 is rotatably arranged on the fire cabinet 11 and is arranged on one side of the fire hydrant 12; A driving assembly is arranged between the connector housing 13 and the fire hose reel 14 and is used to drive the fire hose reel 14 to drive the connector housing 13 to rotate. The driving assembly includes a differential mechanism and a transmission mechanism. The differential mechanism is arranged between the fire hose reel 14 and the inner wall of the fire cabinet 11, and the transmission mechanism is used to synchronously transmit the power transmitted by the differential mechanism to the connector housing 13; A limit post 15 and two limit plates 16. The limit post 15 is fixedly connected to the side of the connector housing 13, and each limit plate 16 is fixedly connected to the bottom wall of the fire cabinet 11. The included angle between the sides of the two limit plates 16 is used to limit the flipping angle of the connector housing 13; The driving component cooperates with the joint housing 13 and the transmission of the fire hose reel 14, enabling the user to efficiently convert the rotational force applied to the fire hose reel 14 into the rotational torque of the joint housing 13, thus simplifying the steps for the user to connect the hose to the joint housing 13 during operation. This design improves the operation convenience and significantly enhances the overall usage efficiency. Especially in emergency situations, firefighters can complete the connection and extraction of the hose more quickly, saving precious time, thereby ensuring a faster response to emergency rescue needs and improving the speed and effectiveness of emergency response. At the same time, the transmission relationship between the joint housing 13 and the fire hose reel 14 is independent. When the rotation angle of the joint housing 13 reaches the set limit, it will not interfere with the rotation of the fire hose reel 14. The user can continue to perform the extraction or winding operation of the hose without being affected by the rotation limit of the joint housing 13, ensuring the smooth use of the fire hose reel 14, improving the flexibility and efficiency of operation, enhancing the working stability of fire-fighting equipment, improving the operation convenience, and enhancing the overall usage efficiency. Especially in emergency situations, it can save precious time for firefighters and ensure a faster emergency response.

[0020] Reference Figures 2 to 6 , the differential mechanism includes: A support frame 21, which is fixedly connected to the inner wall of the fire cabinet 11, and the fire hose reel 14 is rotatably connected to the support frame 21; A driving column 22, which is rotatably connected to the support frame 21, and a first gear 23 is fixedly connected to the driving column 22; A receiving plate 24, which is fixedly connected to the driving column 22, and a number of receiving columns 25 are fixedly connected to the receiving plate 24. One end of each receiving column 25 away from the receiving plate 24 is rotatably connected to a second gear 26, and each second gear 26 meshes with the first gear 23; A linkage column 27, which is rotatably connected to the inner wall of the fire cabinet 11, and a third gear 28 is fixedly connected to the linkage column 27. The third gear 28 meshes with each second gear 26; The design of the differential mechanism is such that when the user operates the fire hose reel 14 to extract the hose, the rotation of the fire hose reel 14 does not directly drive the joint housing 13 to rotate synchronously. Since there are multiple turns of the hose wound around the fire hose reel 14, the number of rotations of the reel is usually relatively large, while the joint housing 13 only needs to complete a specific rotation angle. Therefore, the role of the differential mechanism is to ensure that the joint housing 13 stops rotating after reaching the required rotation angle, independent of the continued rotation of the fire hose reel 14. After the joint housing 13 is adjusted to the correct position, the fire hose reel 14 can still continue to rotate without affecting the angle setting of the joint housing 13, thus avoiding unnecessary friction or entanglement problems between the hose and the joint housing 13. The design of the differential mechanism can effectively separate the rotation of the fire hose reel 14 from the rotation of the joint housing 13, making their movements independent of each other, ensuring that the user can operate the reel more freely. With this design, when the fire hose reel 14 extracts or winds the hose, it is not restricted by the rotation of the joint housing 13, and the user does not need to additionally consider the rotation angle of the joint housing 13, simplifying the operation process, improving the flexibility and convenience of use, increasing the operation efficiency of the equipment, and also ensuring the precise connection between the hose and the joint housing 13, enhancing the response speed and operation stability in emergency situations.

[0021] Reference Figures 2 to 6 , the transmission mechanism includes: A first pulley 31 and a second pulley 32, the first pulley 31 is fixedly connected to the joint housing 13, the second pulley 32 is rotatably connected to the bottom wall of the fire cabinet 11, and a transmission belt 33 is sleeved between the first pulley 31 and the second pulley 32; A fourth gear 34, the fourth gear 34 is rotatably connected between the fire cabinet 11 and the second pulley 32 and is fixedly connected to the second pulley 32; A fifth gear 35, the fifth gear 35 is rotatably connected to the inner wall of the fire cabinet 11, and the fourth gear 34 meshes with the fifth gear 35; A first synchronous pulley 36 and a second synchronous pulley 37, both the first synchronous pulley 36 and the second synchronous pulley 37 are rotatably connected to the inner wall of the fire cabinet 11, the first synchronous pulley 36 is coaxially and fixedly connected to the linkage column 27, the second synchronous pulley 37 is coaxially and fixedly connected to the fifth gear 35, and a synchronous belt 38 is meshed on the first synchronous pulley 36 and the second synchronous pulley 37; The user can effectively convert the rotational force applied to the fire hose reel 14 into the rotational torque of the joint housing 13. Through the cooperation of the transmission mechanism and the differential mechanism, the rotational force of the fire hose reel 14 can drive the joint housing 13 to rotate synchronously. When the fire hose is pulled out, the joint housing 13 will automatically adjust to a suitable position along with the rotation of the fire hose reel 14, simplifying the steps for the user to connect the hose to the joint housing 13 during operation, improving the convenience of operation, ensuring that the hose can be quickly and accurately connected to the joint housing 13, enhancing the overall usage efficiency. Especially in emergency situations, it can save valuable time for firefighters and ensure a faster emergency response.

[0022] Reference Figures 1 to 5 , a protective plate 17 is fixedly connected to the fire cabinet 11 to protect the components below the protective plate 17; Through the protection of the components below by the protective plate 17, not only can the damage of external factors to these components be effectively prevented, but also it is ensured that the hose will not interfere with the components below the protective plate 17 during use. While improving the durability of the equipment, the safety and stability during use are also enhanced, ensuring the smooth use of the hose during fire fighting operations and reducing the risk of failures caused by component interference.

[0023] Reference Figures 1 to 2 and Figures 5 to 6 , at one end of the driving column 22 far from the linkage column 27, a threaded surface 221 is provided, and a transmission ring 222 is threadedly connected to the threaded surface 221. A plurality of transmission plates 223 are hinged to the transmission ring 222, and a transmission block 224 is hinged to one end of each transmission plate 223 far from the transmission ring 222; A plurality of transmission grooves 141 are provided on the fire hose reel 14, and each transmission block 224 is slidably abutted against the inner wall of each transmission groove 141. A transmission roller 225 is rotatably connected to each transmission block 224; By adjusting the threaded relationship between the transmission ring 222 and the driving column 22, the transmission roller 225 can slide up and down in the transmission groove 141 through each transmission block 224. When the fire hose on the fire hose reel 14 is overly tightened due to winding or other unexpected situations, resulting in an increase in the friction force between the hose and the reel and making it difficult for the user to quickly extract the hose, the position of each transmission roller 225 can be adjusted to jack it up, effectively changing the tightness between the hose and some areas of the fire hose reel 14 and alleviating the problem of excessive pulling force caused by over-tightening. By reducing the contact area between the hose and the fire hose reel 14, the extraction of the hose becomes smoother, and the user can more quickly and conveniently extract the hose from the fire hose reel 14, improving the usage efficiency and emergency handling ability of the equipment, enhancing the practicality of the fire fighting equipment, ensuring that in emergency situations, firefighters can quickly deploy the hose and improving the rescue efficiency.

[0024] Reference Figures 1 to 2 and Figure 5 One end of the driving column 22 far away from the linkage column 27 is fixedly connected with a driving handle 29; Through the driving handle 29, when the user rotates the fire hose reel 14, they can apply force more efficiently, enabling the fire hose on the fire hose reel 14 to be quickly drawn out. This not only improves the drawing speed but also reduces the user's operation burden. At the same time, it ensures that the fire hose can be wound back smoothly and easily, improving the overall usage efficiency and convenience of the fire hose. In an emergency, firefighters can deploy the hose more quickly and conveniently, enhancing the efficiency of emergency response. Secondly, it also facilitates the adjustment of the threaded connection between the transmission ring 222 and the driving column 22.

[0025] In the attached drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of this application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the attached drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The above is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A fire fighting joint, characterized in that, Comprising: A fire protection cabinet body (11) and a fire hydrant (12), the fire hydrant (12) is fixedly connected inside the fire protection cabinet body (11), and a joint housing (13) is rotatably connected to the fire hydrant (12); A fire hose reel (14), the fire hose reel (14) is rotatably arranged on the fire protection cabinet body (11), and the fire hose reel (14) is arranged on one side of the fire hydrant (12); A driving assembly, the driving assembly is arranged between the joint housing (13) and the fire hose reel (14), and is used to drive the fire hose reel (14) to drive the joint housing (13) to rotate. The driving assembly includes a differential mechanism and a transmission mechanism. The differential mechanism is arranged between the fire hose reel (14) and the inner wall of the fire protection cabinet body (11), and the transmission mechanism is used to synchronously transmit the power transmitted by the differential mechanism to the joint housing (13); A limiting column (15) and two limiting plates (16), the limiting column (15) is fixedly connected to the side of the joint housing (13), and each of the limiting plates (16) is fixedly connected to the bottom wall of the fire protection cabinet body (11). The included angle between the sides of the two limiting plates (16) is used to limit the flipping angle of the joint housing (13).

2. The fire fighting joint according to claim 1, characterized in that, The differential mechanism includes: A support frame (21), the support frame (21) is fixedly connected to the inner wall of the fire protection cabinet body (11), and the fire hose reel (14) is rotatably connected to the support frame (21); A driving column (22), the driving column (22) is rotatably connected to the support frame (21), and a first gear (23) is fixedly connected to the driving column (22); A receiving plate (24), the receiving plate (24) is fixedly connected to the driving column (22), and a number of receiving columns (25) are fixedly connected to the receiving plate (24). One end of each receiving column (25) away from the receiving plate (24) is rotatably connected to a second gear (26), and each of the second gears (26) is meshed with the first gear (23); A linkage column (27), the linkage column (27) is rotatably connected to the inner wall of the fire protection cabinet body (11), and a third gear (28) is fixedly connected to the linkage column (27), and the third gear (28) is meshed with each of the second gears (26).

3. The fire-fighting joint according to claim 2, characterized in that, The transmission mechanism includes: A first pulley (31) and a second pulley (32), the first pulley (31) is fixedly connected to the joint housing (13), the second pulley (32) is rotatably connected to the bottom wall of the fire protection cabinet body (11), and a transmission belt (33) is sleeved between the first pulley (31) and the second pulley (32); A fourth gear (34), the fourth gear (34) is rotatably connected between the fire protection cabinet body (11) and the second pulley (32), and is fixedly connected to the second pulley (32); A fifth gear (35), the fifth gear (35) is rotatably connected to the inner wall of the fire protection cabinet body (11), and the fourth gear (34) is meshed with the fifth gear (35); A first synchronous pulley (36) and a second synchronous pulley (37), both the first synchronous pulley (36) and the second synchronous pulley (37) are rotatably connected to the inner wall of the fire cabinet (11), the first synchronous pulley (36) is coaxially and fixedly connected to the linkage column (27), the second synchronous pulley (37) is coaxially and fixedly connected to the fifth gear (35), and a synchronous belt (38) is engaged on the first synchronous pulley (36) and the second synchronous pulley (37).

4. The fire-fighting joint according to claim 1, characterized in that, A protective plate (17) is fixedly connected to the fire cabinet (11) to protect the components below the protective plate (17).

5. The fire-fighting joint according to claim 3, characterized in that, A threaded surface (221) is provided at one end of the drive column (22) away from the linkage column (27), a transmission ring (222) is threadedly connected to the threaded surface (221), and a plurality of transmission plates (223) are hinged to the transmission ring (222). One end of each transmission plate (223) away from the transmission ring (222) is hinged to a transmission block (224). A plurality of transmission grooves (141) are provided on the fire hose reel (14), each transmission block (224) is slidably abutted against the inner wall of each transmission groove (141), and a transmission roller (225) is rotatably connected to each transmission block (224).

6. The fire-fighting connector according to claim 3, characterized in that, A drive handle (29) is fixedly connected to one end of the drive column (22) away from the linkage column (27).

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