Expansion connection device special for fire hose connection buckle
By designing a fire hose coupling device that combines a tensioning mechanism and elastic elements, the problem of unstable connection in existing devices has been solved, enabling fast and secure hose connections and improving the safety and ease of operation of the fire protection system.
Patent Information
- Application Number
- CN202422687659.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing fire hose coupling devices cannot fully control the expansion pattern of the inner expansion ring, resulting in an unstable connection between the hose and the coupling, which is prone to loosening or falling off, affecting the safety and reliability of the fire protection system.
A special expansion device for fire hose couplings, including a coupling seat, an expansion ring, and an expansion mechanism, was designed. The expansion ring and fire hose are pressed into the expansion groove of the coupling seat by the deformation of the elastic element of the expansion mechanism. A tight connection is achieved by combining the metal expansion seat and the elastic element of high elastic rubber. The device is connected to a pressurizing device through a pressurization channel for easy operation.
It enables rapid and secure connection of fire hoses, improves installation efficiency, prevents leakage, enhances the durability and versatility of the device, and ensures the safety and reliability of the fire protection system.
Smart Images
Figure CN223524705U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a water hose joint technology field especially a kind of special expanding device for fire-fighting water hose joint. BACKGROUND
[0002] Water hose inner expanding joint is a connector for connecting water hose, fire engine, fire hydrant, fire gun and other fire-fighting equipment, and realizes fastening connection by inner expanding mode.When the joint is connected with the water hose, the expanding mechanism (3) in the joint expands outward, tightly clamps the inner wall of the water hose, thereby realizing stable connection.
[0003] At present, the existing expanding device is pure mechanical structure, cannot completely control the expanding mode of the inner expanding ring of inner expanding joint, and it is easy to appear that inner expanding ring is not completely fitted into joint groove, so that the connection of water hose and joint cannot reach corresponding pressure level, and unqualified product is prone to appear.
[0004] Therefore, it is necessary to design a special expanding device for fire-fighting water hose joint to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at the deficiencies of prior art, and provides a special expanding device for fire-fighting water hose joint.
[0006] The technical scheme of the utility model is: a special expanding device for fire-fighting water hose joint, which comprises a joint seat, an expanding ring and an expanding mechanism; an expanding groove for accommodating the expanding ring is arranged on the inner wall of the joint seat; the expanding mechanism is used to extend into the inner hole of the joint seat, and by exerting pressure, the elastic member on the surface of the expanding mechanism is deformed, so that the expanding ring and the fire-fighting water hose, which are sequentially sleeved on the expanding mechanism from inside to outside, are pressed into the expanding groove on the inner wall of the joint seat.
[0007] The expanding mechanism comprises an expanding seat; an annular groove is arranged in the middle part of the expanding seat; the elastic member is arranged in the annular groove, and the two ends of the elastic member are sealingly connected with the expanding seat; the expanding seat has a pressurizing channel communicated with the annular groove.
[0008] The outer end of the expanding seat is provided with a connecting part connected with a pressurizing device; the inlet end of the pressurizing channel is arranged at the end of the connecting part.
[0009] The connecting part has external thread.
[0010] The material of the expanding seat is metal.
[0011] The expanding ring is a copper ring.
[0012] The material of the elastic member is high-elasticity rubber.
[0013] The positioning part comprises a positioning ring table arranged at the end of the expansion seat; the end of the connecting buckle seat is provided with a positioning ring sleeve; and the inside of the positioning ring sleeve is provided with a stepped surface matched with the positioning ring table.
[0014] With the above technical scheme, the utility model has the following beneficial effects: (1) The utility model discloses an expansion device for fire hose connecting buckle, which comprises an expansion seat, an expansion ring, an elastic element and a connecting buckle seat.
[0015] (2) The expansion seat of the utility model is made of metal material, which guarantees the strength and durability of the expansion seat; the elastic element is made of high-elasticity rubber, which guarantees sufficient deformation capacity to meet the expansion requirement, has good sealing property and corrosion resistance, and prolongs the service life of the device.
[0016] (3) The expansion ring of the utility model is made of copper, which has good ductility and corrosion resistance, and further enhances the expansion effect.
[0017] (4) The utility model discloses a pressurizing channel arranged on the expansion seat and a connecting part connected with a pressurizing device, in particular a design with external threads, which makes the pressurizing process more controllable and easier to operate; at the same time, the design facilitates the daily maintenance and repair of the device and reduces the maintenance cost.
[0018] (5) The design principle and structural features of the expansion device of the utility model make it applicable to various specifications and types of fire hose connecting buckles, have high universality and flexibility, and can meet the fire-fighting requirements in different scenes.
[0019] (6) The design of the positioning part of the utility model can stably position the expansion ring sleeved on the expansion seat at the expansion groove of the connecting buckle seat, so that the expansion of the fire hose is more convenient. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to make the content of the utility model more easily understood, the utility model will be further described in detail in the following according to specific embodiments and in combination with the drawings.
[0021] Fig. 1 It is a structural schematic view of the connecting buckle seat of the utility model.
[0022] Fig. 2 It is a structural schematic view of the expansion mechanism of the utility model.
[0023] Fig. 3 Figure 1 is a state diagram of the initial state of the elastic member of the utility model.
[0024] Fig. 4 Figure 2 is a state diagram of the state when the elastic member of the utility model deforms and the expansion ring is pressed into the expansion groove.
[0025] The reference signs in the drawings are:
[0026] The connection buckle seat 1, the expansion ring 2, the expansion mechanism 3, the elastic member 3-1, the expansion seat 3-2, the pressurizing channel 3-3, the connecting part 3-4, the expansion groove 4, the positioning part 5, the positioning ring table 5-1, the positioning ring sleeve 5-2, and the stepped surface 5-3. DETAILED DESCRIPTION
[0027] (Example 1)
[0028] See Figs. 1 to 4 The utility model relates to a special expansion device for fire hose connection buckle, which comprises a connection buckle seat 1, an expansion ring 2 and an expansion mechanism 3. An expansion groove 4 for accommodating the expansion ring 2 is arranged on the inner wall of the connection buckle seat 1. The number of the expansion grooves 4 can be one or more, which is selected according to the actual sealing condition. The expansion mechanism 3 is used to extend into the inner hole of the connection buckle seat 1 and pressurize the expansion ring 2 and the fire hose, which are sequentially sleeved on the expansion mechanism 3 from the inside to the outside, into the expansion groove 4 on the inner wall of the connection buckle seat 1, so that the expansion ring 2 can be stably pressed into the expansion groove 4. The width of the expansion ring 2 is smaller than that of the expansion groove 4, which greatly reduces the positioning requirement of the expansion ring 2 and facilitates the installation of the expansion ring 2.
[0029] Further, the expansion mechanism 3 comprises an expansion seat 3-2. The middle part of the expansion seat 3-2 is provided with an annular groove. The elastic member 3-1 is arranged in the annular groove, and the two ends of the elastic member are sealingly connected with the expansion seat 3-2. The expansion seat 3-2 is provided with a pressurizing channel 3-3 which is in communication with the annular groove.
[0030] Further, the outer end of the expansion seat 3-2 is provided with a connecting part 3-4 which is connected with a pressurizing device. The inlet end of the pressurizing channel 3-3 is arranged at the end of the connecting part 3-4.
[0031] Further, the connecting part 3-4 is provided with external threads, so as to facilitate the connection and disconnection with the pressurizing device.
[0032] Further, the material of the expansion seat 3-2 is metal, which ensures its strength and durability.
[0033] Further, the expansion ring 2 is a copper ring, so that the expansion ring 2 has good ductility and corrosion resistance, further enhancing the expansion effect.
[0034] Further, the material of the elastic member 3-1 is high-elasticity rubber, which not only ensures sufficient deformation capacity to meet the expansion requirement, but also has good sealing property and corrosion resistance, prolonging the service life of the device.
[0035] Further, the positioning part 5 includes a positioning ring table 5-1 arranged at the end of the expansion seat, and the end of the connecting buckle seat 1 is provided with a positioning ring sleeve 5-2, and the inside of the positioning ring sleeve is provided with a stepped surface 5-3 matched with the positioning ring table. Through the design of the positioning part, the expansion ring 2 sleeved on the expansion seat 3-2 can be stably positioned at the expansion groove 4 of the connecting buckle seat 1, so that the expansion of the water hose is more convenient.
[0036] The special expansion device for the fire hose connecting buckle provided by the utility model not only improves the installation efficiency and connection stability of the fire hose connecting buckle, but also enhances the durability and easy operability of the device through the optimization of the structural design and material selection, and provides a powerful guarantee for the safe and efficient operation of the fire fighting system.
[0037] The above specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only for the specific embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A special expander for fire hose couplings, characterized in that: The utility model relates to a kind of expansion joint seat, it include the expansion joint seat (1), expansion joint ring (2) and expansion mechanism (3);The inner wall of the expansion joint seat (1) is equipped with the expansion joint groove (4) for accommodating expansion joint ring (2);The expansion mechanism (3) is used to extend into the inner hole of expansion joint seat (1), and by exerting pressure, the elastic member (3-1) on the surface of expansion mechanism (3) is deformed, so that expansion joint ring (2) and fire hose, which are sequentially sleeved on expansion mechanism (3) from inside to outside, are pressed into the expansion joint groove (4) on the inner wall of expansion joint seat (1);One end of the expansion mechanism (3) is equipped with the positioning part (5) positioned with expansion joint seat (1).
2. The special expanding device for fire hose coupling according to claim 1, characterized in that: The expansion mechanism (3) includes expansion seat (3-2);The middle part of the expansion seat (3-2) is equipped with annular groove;The elastic member (3-1) is arranged in annular groove, and both ends of the elastic member are sealingly connected with expansion seat (3-2);The expansion seat (3-2) has pressurizing channel (3-3) communicated with annular groove.
3. The special expanding device for fire hose coupling according to claim 2, characterized in that: The outer end of the expansion seat (3-2) is equipped with connecting part (3-4) connected with pressurizing equipment;The inlet end of the pressurizing channel (3-3) is arranged at the end of the connecting part (3-4).
4. The special expanding device for fire hose coupling according to claim 3, characterized in that: The connecting part (3-4) has external thread.
5. The special expanding device for fire hose coupling according to claim 2, characterized in that: The material of the expansion seat (3-2) is metal.
6. The special expanding device for fire hose coupling according to claim 1, characterized in that: The expansion joint ring (2) is copper ring.
7. The special expanding device for fire hose coupling according to claim 1, characterized in that: The material of the elastic member (3-1) is high-elasticity rubber.
8. The special expanding device for fire hose coupling according to claim 2, characterized in that: The positioning part (5) includes positioning ring table (5-1) arranged at the end of the expansion seat (3-2);The end of the expansion joint seat (1) is equipped with positioning ring sleeve (5-2);The inside of the positioning ring sleeve (5-2) is equipped with stepped surface (5-3) matched with the positioning ring table (5-1).