360-degree fire hose rotating connector
By introducing ball channels and lubrication systems into the fire hose interface, the relative rotational connection of the interface is achieved, which solves the problem of twisted knotting of the fire hose, and improves the stability and life of use.
Patent Information
- Application Number
- CN202422740007.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The existing fire hose interface cannot rotate, resulting in easy twisting and knotting during connection and turning, affecting normal use.
A 360-degree fire hose rotary interface is designed, and the ball channel is set between the interface jacket and the inner core, and equipped with a lubricating nozzle and sealing plug to achieve a relative rotational connection of the interface, reducing friction and wear.
It effectively reduces the twisting and knotting of fire hose during connection and turning, and ensures the normal use and stability of connection of fire hose.
Smart Images
Figure CN223191239U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire hose interfaces, in particular to a 360-degree fire hose rotation interface. Background Art
[0002] The fire hose interface is a structure used in conjunction with the fire hose and fire-fighting equipment. The fire hose connector can quickly assemble and connect the water outlet of the fire-fighting equipment with the water inlet of the fire hose, achieving efficient and stable fire-fighting operations.
[0003] In order to ensure a stable connection effect during use, the existing fire hose interface is usually connected using threads. However, the two ends of the existing fire hose interface cannot rotate relative to each other. The fire hose needs to be rotated when connecting the fire hose. In addition, the fire hose will also rotate when turning, which can easily cause the fire hose to twist and tangle, thereby affecting the normal use of the fire hose. Therefore, there are still shortcomings and deficiencies in the existing technology. Utility Model Content
[0004] The utility model provides a 360-degree fire hose rotating interface to solve the problems raised in the background technology.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a 360-degree fire hose rotating interface, including an interface jacket, one end of the interface jacket is provided with an internal thread, and the other end of the interface jacket is coaxially connected to the interface core with a hollow structure, the end of the interface core away from the internal thread extends to the outside of the interface jacket and is provided with an external thread, and a plurality of spaced ball channels are coaxially provided between the interface core and the interface jacket, the ball channels are annular channels, the ball channels are filled with balls, and the interface jacket and the interface core are connected by ball rotation; an oil filling hole is radially provided on the side wall of the interface jacket and is located between two adjacent ball channels, and a lubricating oil nozzle is detachably connected in the oil filling hole, and a ball mounting hole connected to the ball channel is radially provided on the side wall of the interface jacket, and a sealing plug is detachably connected in the ball mounting hole.
[0006] Preferably, a first groove is circumferentially provided on the inner side wall of the interface sleeve, and a second groove opposite to the first groove is circumferentially provided on the outer side wall of the interface core, and the second groove and the first groove together constitute a ball channel.
[0007] Preferably, a limiting ring is coaxially fixed on the inner side wall of the interface sleeve, and the limiting ring is located between the internal thread and the inner core of the interface.
[0008] Preferably, a plurality of elastic rubber blocks equidistantly distributed along the circumferential direction are fixedly connected to the inner side wall of the interface sleeve, and the elastic rubber blocks are hemispherical and located between the internal thread and the limiting ring.
[0009] Preferably, anti-slip grooves are provided on the outer side wall of the interface sleeve at one end away from the interface inner core.
[0010] Preferably, a third groove is circumferentially formed on the outer side wall of the interface inner core at one end close to the internal thread, and a rotating sealing ring is provided in the third groove.
[0011] Preferably, a nut is fixed on the outer side wall of the inner core of the interface, and the nut is located between the external thread and the interface outer sleeve.
[0012] The beneficial effects of the present invention are as follows: (1) the present invention provides a ball channel between the interface jacket and the interface core to facilitate filling of balls, so that the interface jacket and the interface core can rotate relative to each other, thereby reducing the twisting and tangling of the fire hose when connecting and turning the fire hose, thereby ensuring the normal use of the fire hose; (2) when the water outlet of the fire-fighting equipment and the interface jacket are tightened into place, the outer wall of the water outlet of the fire-fighting equipment squeezes and deforms the elastic rubber block, thereby increasing the friction between the water outlet of the fire-fighting equipment and the interface jacket, thereby reducing the situation where the interface jacket is accidentally driven to rotate when the interface core rotates, and further reducing the loosening or falling off between the interface jacket and the fire hose. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of the utility model;
[0014] Figure 2 A schematic diagram of the structure of the utility model in a cross-sectional view;
[0015] Figure 3 This is a schematic diagram of the structure of the interface jacket of the utility model in a cross-sectional state;
[0016] Figure 4 This is a schematic diagram of the structure of the interface inner core of the utility model in a cross-sectional state.
[0017] Figure markings: 1. Interface sleeve, 2. Internal thread, 3. Interface core, 4. External thread, 5. Ball channel, 51. First groove, 52. Second groove, 6. Ball, 7. Oil filling hole, 8. Lubricating oil nozzle, 9. Ball mounting hole, 10. Sealing plug, 11. Limiting ring, 12. Elastic rubber block, 13. Anti-slip groove, 14. Third groove, 15. Rotating sealing ring, 16. Nut. DETAILED DESCRIPTION
[0018] The present invention will be further described below with reference to the accompanying drawings. Figure 1 The direction in shall prevail.
[0019] like Figure 1-4As shown, the utility model provides a 360-degree fire hose rotating interface, including an interface jacket 1, one end of the interface jacket 1 is provided with an internal thread 2, the other end of the interface jacket 1 is internally coaxially connected to an interface core 3 with a hollow structure, the end of the interface core 3 away from the internal thread 2 extends to the outside of the interface jacket 1 and is provided with an external thread 4, a plurality of spaced ball channels 5 are coaxially provided between the interface core 3 and the interface jacket 1, the ball channels 5 are annular channels, the cross section of the annular channel is circular, a first groove 51 is provided on the inner side wall of the interface jacket 1 along the circumferential direction, and a groove 51 is provided on the outer side wall of the interface core 3 along the circumferential direction relative to the first groove 51 The second groove 52, the second groove 52 and the first groove 51 together constitute a ball channel 5, the ball channel 5 is filled with balls 6, and the interface sleeve 1 and the interface inner core 3 are rotatably connected through the balls 6; the side wall of the interface sleeve 1 is radially provided with an oil filling hole 7 located between two adjacent ball channels 5, and the oil filling hole 7 is detachably connected with a lubricating oil nozzle 8, which is threadedly connected to the oil filling hole in this embodiment, and the side wall of the interface sleeve 1 is radially provided with a ball mounting through hole 9 connected to the ball channel 5, and the ball mounting through hole 9 is detachably connected with a sealing plug 10, which is threadedly connected to the ball mounting through hole 9 in this embodiment.
[0020] Specifically, before use, lubricating oil can be injected between the interface sleeve 1 and the interface core 3 through the lubricating oil nozzle 8, so that the balls 6, the ball channels 5 and the connection between the interface sleeve 1 and the interface core 3 can be lubricated, thereby reducing friction and wear and extending the service life of the fire hose interface; when connecting the fire hose, the interface sleeve 1 can be threadedly connected to the water outlet of the fire-fighting equipment by rotating the interface sleeve 1. Since the interface sleeve 1 and the interface core 3 are in a rotating connection, there is no need to rotate the fire hose when connecting the fire hose. The interface core 3 can be threadedly connected to the water inlet of the fire hose by rotating the interface core 3, thereby avoiding rotating the fire hose during connection, thereby reducing the twisting and tangling of the fire hose; in addition, since the interface sleeve 1 and the interface core 3 are in a rotating connection, when the fire hose turns and rotates, the fire hose and the fire-fighting equipment can rotate freely, thereby reducing the twisting and tangling of the fire hose.
[0021] The utility model opens a ball channel 5 between the interface outer sleeve 1 and the interface inner core 3 to facilitate the filling of balls 6, so that the interface outer sleeve 1 and the interface inner core 3 can rotate relative to each other. In this way, when connecting the fire hose and the fire hose turning, the twisting and tangling of the fire hose can be reduced, thereby ensuring the normal use of the fire hose.
[0022] In some embodiments, a limit ring 11 is coaxially fixed to the inner side wall of the interface outer sleeve 1, and the limit ring 11 is located between the internal thread 2 and the interface inner core 3. Specifically, the provision of the limit ring 11 can ensure the correct position of the fire-fighting equipment water outlet during assembly, thereby reducing the possibility of loosening or falling off of the threads, thereby improving the stability and safety of the connection.
[0023] In some embodiments, a plurality of elastic rubber blocks 12 equidistantly distributed along the circumferential direction are fixedly connected to the inner side wall of the interface jacket 1. The elastic rubber blocks 12 are hemispherical and located between the internal thread 2 and the retaining ring 11. Specifically, when the water outlet of the fire-fighting equipment and the interface jacket 1 are tightened into place, the outer side wall of the water outlet of the fire-fighting equipment squeezes and deforms the elastic rubber blocks 12, thereby increasing the friction between the water outlet of the fire-fighting equipment and the interface jacket 1, thereby reducing the possibility that the interface jacket 1 is accidentally rotated when the interface inner core 3 rotates, and further reducing the possibility of the interface jacket 1 and the fire hose becoming loose or falling off.
[0024] In some embodiments, an anti-slip groove 13 is provided on the outer side wall of the interface sleeve 1 at one end away from the interface inner core 3. The anti-slip groove 13 can facilitate the rotation of the interface sleeve 1.
[0025] In some embodiments, a third groove 14 is circumferentially provided on the outer wall of the interface inner core 3 at one end close to the internal thread 2, and a rotating sealing ring 15 is provided in the third groove 14. By providing the rotating sealing ring 15, leakage of fire-fighting water can be reduced, thereby ensuring the normal progress of fire-fighting operations.
[0026] In some embodiments, a nut 16 is fixed on the outer wall of the interface inner core 3 , and the nut 16 is located between the external thread 4 and the interface outer sleeve 1 . The provision of the nut 16 facilitates the rotation of the interface inner core 3 .
[0027] The above embodiments can be combined with each other.
[0028] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the scope of protection of the technical solution of the utility model.
Claims
1. A 360-degree fire hose swivel joint, comprising a joint jacket, characterized in that: One end of the interface jacket is provided with an internal thread, and the other end of the interface jacket is coaxially connected to an interface core with a hollow structure. The end of the interface core away from the internal thread extends to the outside of the interface jacket and is provided with an external thread. A plurality of ball channels are coaxially provided between the interface core and the interface jacket. The ball channels are annular channels filled with balls, and the interface jacket and the interface core are rotatably connected by the balls. An oil filling hole located between two adjacent ball channels is radially opened on the side wall of the interface sleeve, and a lubricating oil nozzle is detachably connected to the oil filling hole. A ball mounting hole connected to the ball channel is radially opened on the side wall of the interface sleeve, and a sealing plug is detachably connected to the ball mounting hole.
2. A 360-degree fire hose swivel joint according to claim 1, characterized in that: A first groove is circumferentially provided on the inner side wall of the interface sleeve, and a second groove opposite to the first groove is circumferentially provided on the outer side wall of the interface core. The second groove and the first groove together form a ball channel.
3. The 360-degree fire hose swivel joint according to claim 1, characterized in that: A limiting ring is coaxially fixed on the inner side wall of the interface outer sleeve, and the limiting ring is located between the internal thread and the interface inner core.
4. A 360-degree fire hose swivel joint according to claim 3, characterized in that: A plurality of elastic rubber blocks equidistantly distributed along the circumferential direction are fixedly connected to the inner side wall of the interface sleeve. The elastic rubber blocks are hemispherical and located between the internal thread and the limiting ring.
5. The 360-degree fire hose swivel joint according to claim 1, characterized in that: Anti-slip grooves are provided on the outer side wall of the interface outer sleeve at one end away from the interface inner core.
6. The 360-degree fire hose swivel joint according to claim 1, characterized in that: A third groove is circumferentially formed on the outer side wall of one end of the interface inner core close to the internal thread, and a rotating sealing ring is arranged in the third groove.
7. The 360-degree fire hose swivel joint according to claim 1, characterized in that: A nut is fixed on the outer side wall of the interface inner core, and the nut is located between the external thread and the interface outer sleeve.