Metal-coated hose for connection of gas appliance with anti-loosening joint

Abstract

The utility model discloses a metal coated hose for connecting a gas appliance with an anti-loosening joint. The metal coated hose comprises a metal joint, the metal joint is connected with the hose, and the outer side of the metal joint is sleeved with a fixing seat; a rotary groove is formed in the fixed seat; a rotary connecting sleeve is rotationally connected into the rotary groove; and a locking mechanism is hinged on the fixed seat. The locking mechanism is adopted to fix the degree of freedom of circumferential movement of the rotary connecting sleeve, so that the situation that the rotary connecting sleeve rotates circumferentially under the action of external force, and then the rotary connecting sleeve is loosened relative to a connector of the gas appliance is prevented. Meanwhile, the locking mechanism adopts a rotating working mode, is convenient to operate, and can be held by a single hand for unlocking.

Description

Technical Field

[0001] The utility model relates to a metal-clad hose, in particular to a metal-clad hose for connecting gas appliances with a connection portion that is prevented from loosening, and belongs to the technical field of gas appliance connecting pipes. Background Art

[0002] The metal-clad hoses used in gas appliances connect to the gas meter and gas product at both ends. To facilitate disassembly and replacement, threaded connections are typically used. Due to their inherent structural characteristics, threaded connections offer strong resistance to axial forces but poor resistance to circumferential forces. When subjected to tangential forces, they are prone to rotation, and each rotation increases the risk of loosening. Locknuts exist in the prior art. However, these are typically permanent and cannot be easily disassembled, requiring further improvement. Utility Model Content

[0003] The purpose of the utility model is to overcome the above technical deficiencies and to provide a metal-clad hose for connecting gas appliances with anti-loosening joints, which is easy to disassemble, flexible to replace, not easy to loosen, and has a simple and reasonable structure.

[0004] In order to achieve the above technical purpose, the utility model adopts the following technical solutions

[0005] A metal-clad hose for connecting gas appliances with a connection that prevents loosening, comprising a metal joint; the metal joint is connected to the hose, and a fixing seat is provided on the outer side of the metal joint; a rotary groove is provided on the fixing seat; a rotary connecting sleeve is rotatably connected in the rotary groove; and a locking mechanism is hinged on the fixing seat.

[0006] Furthermore, a limiting protrusion is arranged around the inner side of the rotary groove; and a limiting groove is arranged around the inner side of the rotary connecting sleeve relative to the limiting protrusion.

[0007] The limiting protrusion is embedded in the limiting groove; an internal thread is also provided in the rotary connection sleeve; and an external thread is provided at the interface of the gas appliance relative to the internal thread.

[0008] Furthermore, a first slot is provided on the surface of the fixing seat; a second slot is provided on the surface of the rotary connecting sleeve; when rotated into place, the first slot and the second slot are aligned and connected to each other.

[0009] Furthermore, the locking mechanism includes a locking rod; the middle portion of the locking rod is hinged to the inner side wall of the first slot.

[0010] Furthermore, first magnetic blocks are provided on both sides of the end of the locking rod; a second magnetic block is provided on the inner side wall of the second slot; and the first magnetic block and the second magnetic block have opposite magnetic poles.

[0011] Furthermore, the other end of the fixing seat relative to the rotary connecting sleeve is provided with an opening; the opening is communicated with the first slot; and the other end of the locking rod relative to the first magnetic block is located outside the opening.

[0012] This utility model has the following beneficial effects: a locking mechanism secures the circumferential freedom of movement of the rotary adapter sleeve, preventing it from rotating circumferentially under external forces and thereby loosening relative to the interface of the gas appliance. Furthermore, the locking mechanism operates in a rotating mode, making it easy to operate and can be unlocked with one hand. Furthermore, the locking mechanism is magnetically retained within the rotary adapter sleeve, eliminating the need for additional fasteners and resulting in a simple and reasonable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0015] Figure 3 It is a structural diagram of the locking mechanism.

[0016] Explanation of the reference numerals: 1 is a metal joint, 2 is a fixing seat, 2-1 is a first slot, 3 is a rotary slot, 3-1 is a limiting protrusion, 4 is a rotary connecting sleeve, 4-1 is a limiting slot, 4-2 is a second slot, 5 is a locking rod, 6 is a first magnetic block, and 7 is a second magnetic block. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is 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 invention and are not intended to limit the present invention.

[0018] A metal-clad hose for connecting gas appliances with a connection that prevents loosening, comprising a metal joint 1; the metal joint 1 is connected to the hose, and a fixing seat 2 is sleeved on the outer side of the metal joint 1; a rotary groove 3 is formed on the fixing seat 2; a rotary connecting sleeve 4 is rotatably connected in the rotary groove 3; and a locking mechanism is hinged on the fixing seat 2.

[0019] Furthermore, a limiting protrusion 3-1 is arranged around the inner side of the rotary groove 3; and a limiting groove 4-1 is arranged around the inner side of the rotary connecting sleeve 4 relative to the limiting protrusion 3-1.

[0020] Furthermore, the limiting protrusion 3-1 is embedded in the limiting groove 4-1; the rotary connecting sleeve 4 is also provided with an internal thread; and the gas appliance interface is provided with an external thread relative to the internal thread.

[0021] Furthermore, a first card slot 2-1 is provided on the surface of the fixing seat 2; a second card slot 4-2 is provided on the surface of the rotary connecting sleeve 4; when rotated into place, the first card slot 2-1 and the second card slot 4-2 are aligned and connected to each other.

[0022] Furthermore, the locking mechanism includes a locking rod 5; the middle portion of the locking rod 5 is hinged to the inner wall of the first slot 2-1.

[0023] Furthermore, first magnetic blocks are provided on both sides of the end of the locking rod 5; a second magnetic block is provided on the inner side wall of the second slot; and the first magnetic block 6 and the second magnetic block 7 have opposite magnetic poles.

[0024] Furthermore, the other end of the fixing seat 2 relative to the rotary connecting sleeve 4 is provided with an opening; the opening is connected to the first slot 2-1; the other end of the locking rod 5 relative to the first magnetic block is outside the opening.

[0025] Working principle: After the rotary connecting sleeve 4 is rotated into place relative to the interface, the locking rod 5 is rotated so that the end of the locking rod 5 is in the second slot 4-2; at this time, the end of the locking rod 5 will be attracted by the second magnetic block 7 in the second slot 4-2 and cannot move outward; since the locking rod 5 is parallel to the axial direction of the rotary connecting sleeve 4, it can limit the turnover of the rotary connecting sleeve 4; when disassembly is required, the two locking rods 5 can be pressed inward at the same time, so that the locking rod 5 is rotated outward of the second slot 4-2 under the action of the lever. At this time, the turnover restriction of the rotary connecting sleeve 4 disappears, and the rotary connecting sleeve 4 can be rotated to separate it from the interface.

[0026] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A metal-clad hose for connecting a gas appliance with a connection that prevents loosening, comprising a metal joint; the metal joint is connected to the hose, and is characterized by: The outer side of the metal joint is provided with a fixing seat; a rotary groove is provided on the fixing seat; a rotary connecting sleeve is rotatably connected in the rotary groove; and a locking mechanism is hinged on the fixing seat.

2. A metal-clad hose for connecting gas appliances with a connection that prevents loosening according to claim 1, characterized in that: A limiting protrusion is arranged around the inside of the rotary groove; and a limiting groove is arranged around the inner side of the rotary connection sleeve relative to the limiting protrusion.

3. The metal-clad hose for connecting gas appliances with a connection that prevents loosening according to claim 2, characterized in that: The limiting protrusion is embedded in the limiting groove; an internal thread is also provided in the rotary connection sleeve; and an external thread is provided at the interface of the gas appliance relative to the internal thread.

4. A metal-clad hose for connecting gas appliances with a connection that prevents loosening according to claim 3, characterized in that: A first slot is provided on the surface of the fixing seat; a second slot is provided on the surface of the rotary connection sleeve; when the sleeve is rotated into position, the first slot and the second slot are aligned and connected to each other.

5. The metal-clad hose for connecting gas appliances with a connection that prevents loosening according to claim 4, characterized in that: The locking mechanism comprises a locking rod; the middle portion of the locking rod is hinged to the inner side wall of the first slot.

6. The metal-clad hose for connecting gas appliances with a connection that prevents loosening according to claim 5, characterized in that: First magnetic blocks are provided on both sides of the end portion of the locking rod; a second magnetic block is provided on the inner side wall of the second slot; and the first magnetic block and the second magnetic block have opposite magnetic poles.

7. The metal-clad hose for connecting gas appliances with a connection that prevents loosening according to claim 6, characterized in that: The other end of the fixing seat relative to the rotary connecting sleeve is provided with an opening; the opening is communicated with the first slot; the other end of the locking rod relative to the first magnetic block is located outside the opening.

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