Quick connecting and locking device for fire hose

Abstract

The utility model relates to the technical field of fire-fighting equipment, and discloses a fire hose quick connecting and locking device which comprises a hollow pipe, a threaded groove is formed in the top of the hollow pipe, an annular groove is formed in the middle of the outer side of the hollow pipe, a hollow cover is arranged outside the hollow pipe, and clamping rings are fixedly connected to the periphery of the interior of the hollow cover. The bottom of the hollow cover is fixedly connected with a clamping ring, the clamping ring is clamped with the annular groove, the bottom of the hollow cover is fixedly connected with a threaded ring, the threaded ring is in threaded connection with the threaded groove, and the bottom of the hollow cover is fixedly connected with a rubber strip. When the water hose is installed, the water hose is inserted into the hollow cover from top to bottom, the outer edge of the water hose is wound on the outer side of the rubber strip, after the hollow cover is sleeved, the clamping ring and the annular groove are clamped and preliminarily fixed, and then the threaded ring and the threaded groove are matched to be firmly connected; and the water hose can be quickly fixed between the hollow cover and the hollow pipe.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and in particular to a quick-connect locking device for fire hoses. Background Technology

[0002] Fire hoses are flexible tubes used to extinguish fires by conveying high-pressure water or flame-retardant liquids such as foam. They consist of an inner lining, a reinforcing layer, and an outer covering. Their performance is related to indicators such as working pressure and burst pressure. When using them, they must be laid, connected, and operated correctly. After use, they should be cleaned and dried properly. Regular inspections and storage are also necessary to ensure fire extinguishing effectiveness. In order to facilitate quick connection and installation of fire hoses, a quick-connect locking device for fire hoses is required.

[0003] The quick-connect locking device for fire hoses is a key component used to quickly and stably connect fire hoses and prevent them from falling off. It comes in two types: plug-in locking and snap-lock locking. Through the principles of plug-in engagement, locking block and slot cooperation, and locking ring rotation, it achieves efficient connection and firm locking, ensuring stable hose connection during firefighting.

[0004] Currently available fire hose quick-connect locking devices use clips and connecting rings to secure the hose to the water pipe. To improve the hose's stability and sealing, existing technology involves wrapping wire around the outside of the hose and tightening it. However, this method makes it difficult to quickly secure and remove the hose, and the manual wrapping and tightening process makes it difficult to ensure consistent results each time, thus reducing the device's reliability. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick-connect locking device for fire hoses, which aims to improve the problems of cumbersome disassembly and assembly process and insufficient stability of the locking device in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a quick-connect locking device for fire hoses, comprising a hollow tube, a threaded groove at the top of the hollow tube, an annular groove at the middle of the outer side of the hollow tube, a hollow cover on the outside of the hollow tube, retaining rings fixedly connected to the inner circumference of the hollow cover, the retaining rings engaging with the annular grooves, a threaded ring fixedly connected to the bottom of the hollow cover, the threaded ring threadedly connected to the threaded grooves, a rubber strip fixedly connected to the bottom of the hollow cover, the rubber strip engaging with the hollow tube, and an adjustment mechanism provided on the inner side of the hollow tube for adjusting the water spray volume.

[0007] As a further description of the above technical solution:

[0008] The adjusting mechanism includes a conical toothed ring, which is rotatably connected to the inner bottom of the hollow tube. Conical gears are rotatably connected to all four sides of the inner bottom of the hollow tube. The conical gears mesh with the conical toothed ring. A threaded column is fixedly connected to the outer side of the conical gear. A threaded cover is threadedly connected to the outer side of the threaded column. A baffle is fixedly connected to the outer side of the threaded cover through the hollow tube.

[0009] As a further description of the above technical solution:

[0010] A sealing ring one is fixedly connected to the top of the hollow tube, and a sealing ring two is fixedly connected to the top of the inner side of the hollow cover.

[0011] As a further description of the above technical solution:

[0012] A handle is provided on the front side of the hollow cover, and screws are threaded to the upper and lower sides of the hollow tube. The handle is threaded to the hollow cover through the screws.

[0013] As a further description of the above technical solution:

[0014] Positioning blocks are fixedly connected to the top of the outer side of the hollow cover, and positioning holes are opened on the inner side of the positioning blocks.

[0015] As a further description of the above technical solution:

[0016] A fixing ring is fixedly connected to the top of the inner side of the hollow tube, and guide grooves are provided on all four sides of the inner side of the fixing ring.

[0017] As a further description of the above technical solution:

[0018] A knob is rotatably connected to the bottom front side of the hollow tube, and the rear side of the knob passes through the hollow tube and is fixedly connected to the bevel gear on the front side.

[0019] As a further description of the above technical solution:

[0020] Multiple guide rods are fixedly connected to the outside of the baffle, and the outer side of the guide rods is slidably connected to the hollow tube.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when installing the water hose, first insert the water hose into the hollow cover from top to bottom, wrap the outer edge of the water hose around the outside of the rubber strip, and then put the hollow cover over the hollow tube, so that the retaining ring engages with the annular groove to complete the initial fixation. Then, use the threaded ring to engage with the threaded groove to firmly connect the hollow tube and the hollow cover. When tightening the threaded ring, the rubber strip is subjected to rotation and compression, which can quickly fix the water hose between the hollow cover and the hollow tube, thereby improving the reliability of the device.

[0023] 2. In this utility model, when adjusting the water flow rate, rotating one side bevel gear will cause the top bevel gear to rotate, which in turn will cause multiple bevel gears meshing with it to rotate synchronously. When these bevel gears rotate, the threaded columns on them rotate synchronously, pushing the threaded cover and baffle to move along the hollow tube. By adjusting the position of the baffle to change the blocking area, the water flow rate can be adjusted, thereby improving the convenience of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of the quick-connect locking device for fire hoses proposed in this utility model;

[0025] Figure 2 This is a front view of the quick-connect locking device for fire hoses proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of the fire hose quick connection and locking device proposed in this utility model;

[0027] Figure 4 This is a partial structural exploded view of the fire hose quick connection and locking device proposed in this utility model;

[0028] Figure 5 This is a partial structural exploded view of the adjusting mechanism of the quick-connect locking device for fire hoses proposed in this utility model.

[0029] Legend:

[0030] 1. Hollow tube; 2. Adjustment mechanism; 201. Conical toothed ring; 202. Threaded column; 203. Threaded cover; 204. Baffle; 205. Conical gear; 3. Threaded groove; 4. Hollow cover; 5. Threaded ring; 6. Snap ring; 7. Rubber strip; 8. Annular groove; 9. Fixing ring; 10. Guide groove; 11. Sealing ring one; 12. Sealing ring two; 13. Handle; 14. Screw; 15. Positioning block; 16. Positioning hole; 17. Knob; 18. Guide rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a fire hose quick-connect locking device, including a hollow tube 1, a threaded groove 3 at the top of the hollow tube 1, an annular groove 8 at the middle of the outer side of the hollow tube 1, a hollow cover 4 on the outside of the hollow tube 1, and retaining rings 6 fixedly connected to the inner circumference of the hollow cover 4. The retaining rings 6 engage with the annular grooves 8, and the engagement of the retaining rings 6 with the annular grooves 8 can initially fix the hollow tube 1 and the hollow cover 4. A threaded ring 5 is fixedly connected to the bottom of the hollow cover 4, and the threaded ring 5 is threadedly connected to the threaded groove 3. The threaded connection can fix the hollow tube 1 and the hollow cover 4. A rubber strip 7 is fixedly connected to the bottom of the hollow cover 4, and the rubber strip 7 engages with the hollow tube 1. The engagement of the rubber strip 7 with the hollow tube 1 can fix the fire hose. An adjustment mechanism 2 is provided on the inner side of the hollow tube 1, and the adjustment mechanism 2 is used to adjust the water spray volume.

[0033] Specifically, when installing the hose, first insert the hose into the hollow cover 4 from top to bottom, then wrap the outer edge of the hose around the outside of the rubber strip 7, and then put the hollow cover 4 over the outside of the hollow tube 1, so that the retaining ring 6 and the annular groove 8 engage with each other, thus initially fixing the hose. Then, through the threaded engagement of the threaded ring 5 and the threaded groove 3, the hollow tube 1 and the hollow cover 4 are firmly connected. During the tightening of the threaded ring 5, the rubber strip 7 will be tightly fixed in the space between the hollow tube 1 and the hollow cover 4 due to the rotation and squeezing action of the threaded ring 5.

[0034] Reference Figure 2 , Figure 3 and Figure 5 The adjusting mechanism 2 includes a conical toothed ring 201, which is rotatably connected to the bottom inner side of the hollow tube 1. The conical toothed ring 201 can rotate along the hollow tube 1. Conical gears 205 are rotatably connected to all four sides of the bottom inner side of the hollow tube 1. The conical gears 205 mesh with the conical toothed ring 201. Rotating the conical toothed ring 201 can synchronously drive the conical gears 205 around it to rotate. A threaded column 202 is fixedly connected to the outer side of the conical gears 205. A threaded cover 203 is threadedly connected to the outer side of the threaded column 202. As the conical gears 205 rotate, the threaded column 202 will rotate synchronously, and as the threaded column 202 rotates, it will push the threaded cover 203 to move simultaneously. A baffle 204 is fixedly connected to the outer side of the threaded cover 203 through the hollow tube 1. When the threaded cover 203 moves, the baffle 204 on it will also move accordingly.

[0035] Specifically, when the water flow rate needs to be adjusted, rotating one side of the bevel gear 205 will cause the bevel gear 201 to rotate because it meshes with the top bevel gear ring 201. This will cause the multiple bevel gears 205 meshing with the bevel gear ring 201 to rotate synchronously. Consequently, the threaded posts 202 on the multiple bevel gears 205 will also rotate synchronously, pushing the threaded cover 203 and its baffle 204 to move along the hollow tube 1. By adjusting the blocking range and area of ​​the baffle 204 inside the hollow tube 1, the water flow rate can be adjusted as needed when the water is flowing.

[0036] Reference Figure 1 , Figure 2 and Figure 3 A sealing ring 11 is fixedly connected to the top of the hollow tube 1, and a sealing ring 12 is fixedly connected to the top of the inner side of the hollow cover 4. The sealing effect of the hollow tube 1 and the hollow cover 4 can be improved by the sealing ring 11 and the sealing ring 12. A handle 13 is provided on the front side of the hollow cover 4. Screws 14 are threadedly connected to the upper and lower sides of the outer side of the hollow tube 1. The handle 13 is threadedly connected to the hollow cover 4 by the screws 14. The detachable handle 13 fixed by the screws 14 can facilitate the gripping and carrying of the device. Positioning blocks 15 are fixedly connected to the top of the outer side of the hollow cover 4. Positioning holes 16 are opened on the inner side of the positioning blocks 15. The positioning holes 16 on the positioning blocks 15 can facilitate the storage of the device, and can also facilitate the connection of external equipment when the threaded parts are inserted into the inner side.

[0037] Specifically, the sealing ring 11 on the hollow tube 1 and the sealing ring 12 on the hollow cover 4 can improve the sealing strength between the hollow cover 4 and the hollow tube 1, and at the same time, it has a certain buffering effect when water flows. The handle 13 installed by the screw 14 can be used to hold and operate the device. At the same time, the screw 14 can be used to remove the handle 13 when it is not needed for operation. By installing the threaded part in the positioning block 15 and the positioning hole 16 on it, it is easy to connect additional equipment or pipes to the outside of the hollow cover 4. At the same time, the positioning hole 16 can also facilitate the storage of the device.

[0038] Reference Figure 2 , Figure 3 and Figure 5 A fixing ring 9 is fixedly connected to the top of the inner side of the hollow tube 1. Guide grooves 10 are provided around the inside of the fixing ring 9. The fixing ring 9 and the guide grooves 10 can improve the strength of the hollow tube 1 and reduce the wear caused by water flow. A knob 17 is rotatably connected to the bottom of the front side of the hollow tube 1. The rear side of the knob 17 passes through the hollow tube 1 and is fixedly connected to the front bevel gear 205. Rotating the knob 17 can facilitate the operation of the bevel gear 205. Multiple guide rods 18 are fixedly connected to the outside of the baffle 204. The outer side of the guide rods 18 is slidably connected to the hollow tube 1. The limiting and sliding of the guide rods 18 can make the movement of the baffle 204 more stable.

[0039] Specifically, the fixed ring 9 can improve the structural strength of the hollow tube 1, while the inner guide groove 10 can facilitate water flow and reduce wear on the hollow tube 1. The rotating knob 17 can facilitate the synchronous rotation of the bevel gear 205. The sliding and positioning of the guide rod 18 can improve the stability of the baffle 204 when moving.

[0040] Working principle: Before using the device, first insert the water hose into the hollow cover 4 from top to bottom, and wrap the outer edge of the water hose around the outside of the rubber strip 7. At this time, put the hollow cover 4 on the outside of the hollow tube 1, and use the retaining ring 6 and the annular groove 8 to lock the water hose in place. Then, fix it between the threaded ring 5 and the threaded groove 3 to fix the hollow tube 1 and the hollow cover 4 together. At this time, as the threaded ring 5 rotates during fixing, the rubber strip 7 will rotate and push to fix the water hose between the hollow tube 1 and the hollow cover 4.

[0041] Furthermore, by rotating the bevel gear 205 on one side, the top bevel gear ring 201 can be rotated through meshing. When the bevel gear ring 201 rotates, it will drive the multiple bevel gears 205 meshing with it to rotate synchronously. As the multiple bevel gears 205 rotate, the threaded column 202 on them will rotate synchronously, thereby pushing the threaded cover 203 and the baffle 204 on it to move along the hollow tube 1. By moving the baffle 204 inside the hollow tube 1, the range and area blocked by the baffle 204 can be adjusted. When water flows, the flow rate can be adjusted by adjusting the blocking area.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect locking device for fire hoses, comprising a hollow tube (1), characterized in that: The hollow tube (1) has a threaded groove (3) at the top and an annular groove (8) at the middle of the outer side. A hollow cover (4) is provided on the outside of the hollow tube (1). A retaining ring (6) is fixedly connected to the inside of the hollow cover (4) and engages with the annular groove (8). A threaded ring (5) is fixedly connected to the bottom of the hollow cover (4) and is threadedly connected to the threaded groove (3). A rubber strip (7) is fixedly connected to the bottom of the hollow cover (4) and engages with the hollow tube (1). An adjustment mechanism (2) is provided on the inner side of the hollow tube (1) and is used to adjust the water spray volume.

2. The quick-connect locking device for fire hoses according to claim 1, characterized in that: The adjusting mechanism (2) includes a conical toothed ring (201), which is rotatably connected to the inner bottom of the hollow tube (1). Conical gears (205) are rotatably connected to all four sides of the inner bottom of the hollow tube (1). The conical gears (205) mesh with the conical toothed ring (201). A threaded column (202) is fixedly connected to the outer side of the conical gear (205). A threaded cover (203) is threadedly connected to the outer side of the threaded column (202). A baffle (204) is fixedly connected to the outer side of the threaded cover (203) through the hollow tube (1).

3. The quick-connect locking device for fire hoses according to claim 1, characterized in that: A sealing ring one (11) is fixedly connected to the top of the hollow tube (1), and a sealing ring two (12) is fixedly connected to the top of the inner side of the hollow cover (4).

4. The quick-connect locking device for fire hoses according to claim 1, characterized in that: A handle (13) is provided on the front side of the hollow cover (4), and screws (14) are threaded to the upper and lower sides of the hollow tube (1). The handle (13) is threaded to the hollow cover (4) through the screws (14).

5. The quick-connect locking device for fire hoses according to claim 1, characterized in that: The hollow cover (4) has positioning blocks (15) fixedly connected to the top of the outer side, and positioning holes (16) are opened on the inner side of the positioning blocks (15).

6. The quick-connect locking device for fire hoses according to claim 1, characterized in that: A fixing ring (9) is fixedly connected to the top of the inner side of the hollow tube (1), and guide grooves (10) are provided on all four sides of the inner side of the fixing ring (9).

7. The quick-connect locking device for fire hoses according to claim 2, characterized in that: A knob (17) is rotatably connected to the bottom front side of the hollow tube (1). The rear side of the knob (17) passes through the hollow tube (1) and is fixedly connected to the bevel gear (205) on the front side.

8. The quick-connect locking device for fire hoses according to claim 2, characterized in that: The baffle (204) is fixedly connected to a plurality of guide rods (18), and the outer side of the guide rods (18) is slidably connected to the hollow tube (1).

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