Anti-static gas appliance connecting hose

Abstract

The utility model relates to an anti-static gas appliance connecting hose which comprises a corrugated pipe, two ends of the corrugated pipe are respectively and fixedly connected with a connector sleeve in an inserting and sleeving mode, a T-shaped first connecting pipe is fixedly connected in the connector sleeve at one end of the corrugated pipe in an inserting and sleeving mode, a first connecting nut is arranged on the first connecting pipe in an inserting and sleeving mode, and a T-shaped second connecting pipe is connected in the connector sleeve at the other end of the corrugated pipe in an inserting and sleeving mode. An adapter with a D-shaped section is formed at the end of the second connecting pipe, a concave hole is formed in the planar side end face of the adapter, and a connecting hole communicated with an inner hole of the second connecting pipe is formed in the inner wall of the concave hole. An adapter nut is arranged on one side of the adapter seat, an adapter is formed on the adapter nut, and the adapter nut is fixed in the concave hole of the adapter seat in a screwed mode and communicated with the concave hole. The second connecting pipe is sleeved with a second connecting nut. The adapter is arranged at one end of the connecting hose of the gas appliance and can be used as a bent pipe joint or a straight pipe joint through switching, so that the gas appliance has better universality.

Description

Technical fields:

[0001] This utility model relates to the technical field of gas pipe connection, and more specifically to a hose for connecting anti-static gas appliances. Background technology:

[0002] Gas connection pipes are crucial components connecting gas appliances and gas pipelines, and their safety and reliability directly impact gas safety in homes and public places. There are currently three types of gas connection pipes: rubber hoses, metal corrugated pipes, and metal-coated pipes. Metal-coated pipes consist of an inner metal corrugated pipe and an outer rubber hose, combining the advantages of the former two. Both ends of the metal-coated pipe have connectors, including a connecting pipe and a connecting nut. The connecting nut can be rotated on the connecting pipe to connect to the gas pipeline or gas appliance. While most are straight pipes, in actual use, gas connection pipes still need to be selected according to the corresponding connection equipment. For example, when connecting a gas connection pipe to an integrated stove, due to factors such as the connector location and ease of installation, a bend in the connector is required. Therefore, a gas connection pipe with a straight connector on one end and a bend on the other should be selected. Therefore, designing a gas connection pipe with interchangeable straight and bend connectors would greatly improve its versatility and enhance its market competitiveness. Utility Model Content:

[0003] The purpose of this utility model is to address the shortcomings of existing technology by providing an anti-static gas appliance connection hose. One end of the gas appliance connection hose has an adapter, which can be used as a bend connector or a straight connector by switching, thus having good versatility.

[0004] A flexible hose for connecting antistatic gas appliances includes a corrugated pipe with connector sleeves fixedly inserted at both ends. A T-shaped first connecting pipe is inserted and fixed inside the connector sleeve at one end of the corrugated pipe, and a first connecting nut is inserted on the first connecting pipe. A T-shaped second connecting pipe is inserted into the connector sleeve at the other end of the corrugated pipe. The end of the second connecting pipe is formed with a D-shaped adapter seat. A recess is formed on the planar side surface of the adapter seat, and a connecting hole communicating with the inner hole of the second connecting pipe is formed on the inner wall of the recess. An adapter nut is provided on one side of the adapter seat, and an adapter is formed on the adapter nut. The adapter nut is screwed and fixed in the recess of the adapter seat and communicates with the recess. A second connecting nut is fitted on the second connecting pipe.

[0005] Preferably, both the first and second connecting pipes are straight pipe fittings, and a limit ring is formed on the outer wall of one end of the pipe fitting;

[0006] The diameter of the first connector is the same as that of the second connector, and the diameter of the upper limit retaining ring of the first connector is the same as that of the second connector; the length of the first connector is less than the length of the second connector.

[0007] Preferably, both the first connecting nut and the second connecting nut are regular hexagonal nuts, and a retaining ring is formed on the inner wall of one end of the nut;

[0008] The diameter of the threaded section of the first connecting nut is the same as that of the threaded section of the second connecting nut and is larger than the diameter of the retaining ring. The diameter of the inner ring of the retaining ring on the first connecting nut and the diameter of the second connecting nut on the second connecting nut are both smaller than the diameter of the retaining ring.

[0009] Preferably, the central axis of the adapter seat coincides with the central axis of the second connector, the diameter of the outer wall of the adapter seat is smaller than the outer diameter of the second connector, and the end of the adapter seat is spherical.

[0010] Preferably, the length of the second pipe extending out of the connector sleeve is greater than the length of the second connecting nut.

[0011] Preferably, sealing washers are inserted into the first connecting nut and the second connecting nut respectively, and the sealing washers are respectively fitted onto the first connecting pipe and the second connecting pipe.

[0012] Preferably, a rubber hose is fitted and fixed on the corrugated pipe, and both ends of the rubber hose are inserted and fixed on the connector sleeve.

[0013] The beneficial effects of this utility model are as follows:

[0014] One end of the gas appliance's connecting hose has an adapter, which can be used as a bend or a straight pipe connector, providing good versatility. Attached image description:

[0015] Figure 1 This is a three-dimensional positional diagram of the present invention;

[0016] Figure 2 This is a front view structural diagram of the present invention;

[0017] Figure 3 This is a side sectional view of the present invention.

[0018] In the diagram: 1. Corrugated pipe; 2. Connector sleeve; 3. First connecting pipe; 4. First connecting nut; 5. Second connecting pipe; 51. Adapter seat; 52. Recessed hole; 53. Connecting hole; 6. Second connecting nut; 7. Adapter nut; 71. Adapter. Detailed implementation method:

[0019] Example: See Figures 1 to 3As shown, a flexible hose for connecting antistatic gas appliances includes a corrugated pipe 1. Connector sleeves 2 are inserted and fixed to both ends of the corrugated pipe 1. A T-shaped first connecting pipe 3 is inserted and fixed inside the connector sleeve 2 at one end of the corrugated pipe 1. A first connecting nut 4 is inserted and fitted onto the first connecting pipe 3. A T-shaped second connecting pipe 5 is inserted and fitted into the connector sleeve 2 at the other end of the corrugated pipe 1. A D-shaped adapter seat 51 is formed at the end of the second connecting pipe 5. A recess 52 is formed on the planar side surface of the adapter seat 51. A connecting hole 53 communicating with the inner hole of the second connecting pipe 5 is formed on the inner wall of the recess 52. An adapter nut 7 is provided on one side of the adapter seat 51. An adapter nut 71 is formed on the adapter nut 7. The adapter nut 7 is screwed and fixed inside the recess 52 of the adapter seat 51 and communicates with the recess 52. A second connecting nut 6 is fitted onto the second connecting pipe 5.

[0020] The first connecting pipe 3 and the second connecting pipe 5 are both straight pipe fittings, and a limiting ring is formed on the outer wall of one end of the pipe fitting; the limiting ring can prevent the first connecting nut 4 from disengaging from the first connecting pipe 3 or the second connecting nut 6 from disengaging from the second connecting pipe 5.

[0021] The diameter of the first connecting pipe 3 is the same as that of the second connecting pipe 5. The diameter of the upper limit retaining ring of the first connecting pipe 3 is the same as that of the upper limit retaining ring of the second connecting pipe 5. The length of the first connecting pipe 3 is less than that of the second connecting pipe 5. Since the interfaces connected at both ends of the gas pipe are basically the same, the joints of conventional gas pipes are also the same.

[0022] The first connecting nut 4 and the second connecting nut 6 are both regular hexagonal nuts, and a retaining ring is formed on the inner wall of one end of the nut; the retaining ring is opposite to the limiting retaining ring to constrain the first connecting nut 4 and the second connecting nut 6.

[0023] The diameter of the threaded section of the first connecting nut 4 is the same as the diameter of the threaded section of the second connecting nut 6 and is larger than the diameter of the retaining ring. The diameter of the inner ring of the retaining ring on the first connecting nut 4 and the diameter of the second connecting nut 6 on the second connecting nut 6 are both smaller than the diameter of the retaining ring.

[0024] The central axis of the adapter 51 coincides with the central axis of the second connector 5, and the diameter of the outer wall of the adapter 51 is smaller than the outer diameter of the second connector 5; the end of the adapter 51 is spherical.

[0025] The length of the second connecting pipe 5 extending out of the connector sleeve 2 is greater than the length of the second connecting nut 6. When it needs to be installed in the adapter nut 7, the second connecting nut 6 is required not to extend out of the second connecting pipe 5, so as not to interfere with the adapter nut 7. The hole diameter of the adapter nut 7 is consistent with the hole diameter of the adapter nut 7.

[0026] Sealing washers are inserted into the first connecting nut 4 and the second connecting nut 6 respectively. The sealing washers are respectively fitted onto the first connecting pipe 3 and the second connecting pipe 5 to prevent air leakage.

[0027] A rubber hose is fitted and fixed on the corrugated pipe 1. The two ends of the rubber hose are inserted and fixed on the connector sleeve 2. The existing gas pipe has a rubber hose on the outside, which is the outer skin layer, in addition to the inner stainless steel corrugation. Its function is to have good bending resistance.

[0028] Working principle: This structure is a hose for connecting anti-static gas appliances. Its technical point is mainly reflected in the structure of the second connector 5. The second connector 5 has an adapter seat 51 formed on it. The adapter seat 51 has a recessed hole 52 perpendicular to the second connector 5. An adapter nut 7 is installed and connected in the recessed hole 52, which can be used as a bend connector.

[0029] After removing the adapter nut 7, move the second connecting nut 6 onto the adapter 51, insert the adapter 51 into the connected interface, and then tighten it by screwing the second connecting nut 6. It can then be used as a straight pipe connector.

[0030] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

1. A hose for connecting anti-static gas appliances, comprising a corrugated pipe (1), a joint sleeve (2) is fixedly connected to each end of the corrugated pipe (1), a T-shaped first connecting pipe (3) is fixedly inserted into the joint sleeve (2) at one end of the corrugated pipe (1), a first connecting nut (4) is inserted into the first connecting pipe (3), characterized in that: The T-shaped second connecting pipe (5) is inserted into the joint sleeve (2) at the other end of the bellows (1), the end of the second connecting pipe (5) is formed with a D-shaped adapter seat (51), the planar side end face of the adapter seat (51) is formed with a recess hole (52), the inner wall of the recess hole (52) is formed with a connecting hole (53) in communication with the inner hole of the second connecting pipe (5); one side of the adapter seat (51) is provided with an adapter nut (7), the adapter nut (7) is formed with an adapter head (71), the adapter nut (7) is screwed and fixed in the recess hole (52) of the adapter seat (51) and communicates with the recess hole (52); The second connecting pipe (5) is provided with a second connecting nut (6).

2. A flexible gas appliance connection hose according to claim 1, characterised in that: The first connecting pipe (3) and the second connecting pipe (5) are linear pipe fittings, the outer wall of one end of the pipe fitting is formed with a limiting stop ring; The pipe diameter of the first connecting pipe (3) is consistent with the pipe diameter of the second connecting pipe (5), the diameter of the limiting stop ring on the first connecting pipe (3) is equal to the diameter of the limiting stop ring on the second connecting pipe (5), and the length of the first connecting pipe (3) is less than the length of the second connecting pipe (5).

3. A flexible gas appliance connection hose according to claim 2, characterised in that: The first connecting nut (4) and the second connecting nut (6) are both hexagonal nuts, the inner wall of one end of the nut is formed with a stop ring; The hole diameter of the threaded section of the first connecting nut (4) is consistent with the hole diameter of the threaded section of the second connecting nut (6) and is greater than the diameter of the limiting stop ring, the diameter of the inner ring of the stop ring on the first connecting nut (4) and the diameter of the second connecting nut (6) on the second connecting nut (6) are both less than the diameter of the limiting stop ring.

4. A flexible gas appliance connection hose according to claim 1, characterised in that: The central axis of the adapter seat (51) coincides with the central axis of the second connecting pipe (5), the diameter of the outer wall of the adapter seat (51) is less than the outer pipe diameter of the second connecting pipe (5); the end of the adapter seat (51) is spherical.

5. A flexible gas appliance connection hose according to claim 4, characterised in that: The length of the second connecting pipe (5) extending out of the joint sleeve (2) is greater than the length of the second connecting nut (6).

6. A flexible gas appliance connection hose according to claim 1, characterised in that: The first connecting nut (4) and the second connecting nut (6) are respectively provided with a sealing washer, and the sealing washer is sleeved on the first connecting pipe (3) and the second connecting pipe (5).

7. A flexible gas appliance connection hose according to claim 1, characterised in that: The rubber hose is sleeved and fixed on the bellows (1), and the two ends of the rubber hose are sleeved and fixed on the joint sleeve (2).

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