CN210051000U

CN210051000U - Water-blocking-proof gas water heater

Info

Publication number: CN210051000U
Application number: CN201920845142.6U
Authority: CN
Inventors: 许俊城; 厉延焕; 唐博
Original assignee: Guangzhou Development Natural Gas Utilization Co ltd; Guangzhou Development Group Inc; Guangzhou Gas Group Co Ltd
Current assignee: Guangzhou East Development Gas Co ltd; Guangzhou Development Group Inc; Guangzhou Gas Group Co Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-02-11
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a water blockage prevention gas water heater, which comprises a shell, wherein a first air inlet, a first water outlet and a first water inlet are arranged at the bottom of the shell, first threads are formed on the inner walls of the first water outlet and the first water inlet, and second threads are formed on the inner wall of the first air inlet; the second thread has an opposite hand to the first thread and/or the first thread is an imperial thread and the second thread is one of a metric thread and a american-style thread. Can adopt the interface design of receiving water pipe and receiving the trachea for turning to this kind of mode of opposite screw thread to realize preventing slow-witted, also can adopt the first screw thread and the second screw thread of different screw thread standard designs to realize preventing slow-witted, still can adopt the design that these two kinds of modes combine to realize preventing slow-witted, avoid the two to confuse the misconnection to reduce because of the misconnection leads to the potential safety hazard and the gas supply that water blocking causes to be interrupted. The utility model discloses rational in infrastructure, it is convenient to use, but wide application in gas equipment technical field.

Description

Water-blocking-proof gas water heater

Technical Field

The utility model relates to a gas equipment technical field, in particular to waterproof stifled gas heater.

Background

At present, the water inlet, the water outlet and the joint of a gas inlet of a domestic gas water heater are all provided with hoses by adopting pipe threads, the standards of the pipe threads of water and gas are completely consistent, and the joints and the hoses are completely the same in appearance and cannot be distinguished, so that the joints are easily mixed up and misconnected during installation and maintenance. Therefore, when the gas pipeline is used, water enters the gas pipeline, the fault that the gas pipeline is blocked by the water occurs, potential safety hazards are generated, and the gas supply in the corresponding region is also interrupted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a waterproof stifled gas heater is provided, can avoid during the installation with the water receiving with the hose of connecing the gas to make a mistake.

The technical scheme adopted for solving the technical problems is as follows:

the water blocking prevention gas water heater comprises a shell, wherein a first air inlet, a first water outlet and a first water inlet are arranged at the bottom of the shell, first threads are formed on the inner walls of the first water outlet and the first water inlet, and second threads are formed on the inner wall of the first air inlet; the second thread has an opposite hand to the first thread and/or the first thread is an imperial thread and the second thread is one of a metric thread and a american-style thread.

Further, sealing structures are arranged at the first air inlet, the first water outlet and the first water inlet respectively.

Further, the sealing structure comprises a first sealing ring, the first sealing ring comprises a first main body, a first inner sealing structure and a first outer sealing structure, the first main body, the first inner sealing structure and the first outer sealing structure are all annular structures, the first inner sealing structure is arranged on the inner wall of the first main body, the top of the first inner sealing structure is connected with the top of the first main body, the first outer sealing structure is arranged on the outer wall of the first main body, and the bottom of the first outer sealing structure is connected with the bottom of the first main body.

Further, the sealing structure comprises a second sealing ring, and annular cavities for coating sealing grease are respectively formed on the inner wall and the outer wall of the second sealing ring along the circumferential direction.

Further, the sealing structure includes a third gasket.

Furthermore, the first air inlet is formed into a stepped hole, the end, with the larger aperture, of the stepped hole is the end of the first air inlet, the second thread is located at the end, with the smaller aperture, of the stepped hole, and the structures of the first water outlet and the first water inlet are the same as those of the first air inlet.

Has the advantages that: can adopt the interface design of receiving water pipe and receiving the trachea for turning to this kind of mode of opposite screw thread to realize preventing slow-witted, also can adopt the first screw thread and the second screw thread of different screw thread standard designs to realize preventing slow-witted, still can adopt the design that these two kinds of modes combine to realize preventing slow-witted, avoid the two to confuse the misconnection to reduce because of the misconnection leads to the potential safety hazard and the gas supply that water blocking causes to be interrupted. The utility model discloses rational in infrastructure, it is convenient to use, but wide application in gas equipment technical field.

Drawings

FIG. 1 is a schematic view of a water heater;

fig. 2 is a schematic structural view of the first air intake port, the sealing structure, and the first mounting head.

Detailed Description

The present invention will be further described with reference to fig. 1 to 2.

The first embodiment is as follows:

the utility model relates to a waterproof stifled gas heater, it includes casing 10, and first air inlet 11, first delivery port 12 and first water inlet 13 have been arranged to casing 10's bottom, and seal structure has respectively been arranged in first air inlet 11, first delivery port 12 and first water inlet 13 punishment. The inner walls of the first water outlet 12 and the first water inlet 13 are both formed with first threads, and the inner wall of the first air inlet 11 is formed with second threads. For preventing to obscure water pipe and tracheal installation, first screw thread design is levogyration or dextrorotation, and the rotation direction design of second screw thread is for being opposite with first screw thread, and two kinds of screw threads can't be exchanged the use like this, ensure that the trachea can't be installed at first delivery port or first water inlet, and the water pipe also can't be installed at first air inlet to avoid the gas supply that leads to because of the water blocking to be interrupted and the potential safety hazard of production.

The first air inlet 11 is formed as a stepped hole, and the first water outlet 12 and the first water inlet 13 have the same structure as the first air inlet 11. The great one end of aperture is the tip of first air inlet 11 in the shoulder hole, and the second screw thread is located the less one end of aperture in the shoulder hole, and the shoulder hole includes the great first hole of aperture and the less second hole of aperture, and the first hole is the unthreaded hole, and the second hole is the screw hole. The first air inlet 11 is mounted with the air inlet pipe through a first mounting head, and the first mounting head is screwed with the first air inlet 11 through threads.

In some embodiments, the sealing structure includes a first sealing ring 14, the first sealing ring 14 is sleeved on the first mounting head, the first sealing ring 14 includes a first main body, a first inner sealing structure and a first outer sealing structure, the first main body, the first inner sealing structure and the first outer sealing structure are all ring structures, the first inner sealing structure is arranged on the inner wall of the first main body, the top of the first inner sealing structure is connected with the top of the first main body, the first outer sealing structure is arranged on the outer wall of the first main body, and the bottom of the first outer sealing structure is connected with the bottom of the first main body. The first sealing ring 14 is made of a silica gel structure, and the structure of the first sealing ring 14 can be substantially regarded as that the structure at the top of the first main body is turned inwards to form a first inner sealing structure, and the structure at the bottom of the first main body is turned outwards to form a first outer sealing structure. During installation, the first mounting head penetrates through the top of the first sealing ring 14, the first inner sealing structure ensures air tightness between the first main body and the first mounting head, and the first outer sealing structure ensures air tightness between the first main body and the inner wall of the first air inlet 11.

In some embodiments, the sealing structure includes a second sealing ring 15, and the inner wall and the outer wall of the second sealing ring 15 are respectively formed with annular cavities for coating sealing grease along the circumferential direction. The annular cavities of the inner and outer walls of the second sealing ring 15 are staggered from each other in position, so as to avoid damaging the strength structure of the second sealing ring 15.

In some embodiments, the seal arrangement includes a third seal 16, and is installed by first fitting the third seal 16 over the first mounting head, then fitting the second seal 15 coated with a sealing grease over the first mounting head, and then fitting the first seal 14 over the first mounting head. The first sealing ring 14 and the second sealing ring 15 are positioned in the first hole of the stepped hole, and the third sealing gasket 16 props against the end face of the first air inlet hole.

Example two:

the difference between this embodiment and the first embodiment is that the fool-proofing is achieved in another way, the first thread is designed as imperial thread, and the second thread is designed as one of metric thread and american thread. Or, as an equivalent alternative, the first thread is designed as metric or american thread and the second thread is designed as english thread. The first thread and the second thread are designed by adopting different thread standards, so that the confusion of the installation of the water pipe and the air pipe is avoided.

Example three:

the difference between this embodiment and the first embodiment is that, to further achieve fool-proofing and avoid installation confusion, the first thread and the second thread are designed to have different screw directions as in the first embodiment, and the first thread and the second thread are designed to have different thread standards as in the second embodiment.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. Water blocking prevention's gas heater, its characterized in that: the water inlet structure comprises a shell (10), wherein a first air inlet (11), a first water outlet (12) and a first water inlet (13) are arranged at the bottom of the shell (10), first threads are formed on the inner walls of the first water outlet (12) and the first water inlet (13), and second threads are formed on the inner wall of the first air inlet (11); the second thread has an opposite hand to the first thread and/or the first thread is an imperial thread and the second thread is one of a metric thread and a american-style thread.

2. The water blockage resistant gas water heater according to claim 1, wherein: sealing structures are respectively arranged at the first air inlet (11), the first water outlet (12) and the first water inlet (13).

3. The water blockage resistant gas water heater according to claim 2, wherein: the sealing structure comprises a first sealing ring (14), the first sealing ring (14) comprises a first main body, a first inner sealing structure and a first outer sealing structure, the first main body, the first inner sealing structure and the first outer sealing structure are all annular structures, the first inner sealing structure is arranged on the inner wall of the first main body, the top of the first inner sealing structure is connected with the top of the first main body, the first outer sealing structure is arranged on the outer wall of the first main body, and the bottom of the first outer sealing structure is connected with the bottom of the first main body.

4. The water blockage resistant gas water heater of claim 3, wherein: the sealing structure comprises a second sealing ring (15), and annular cavities for coating sealing grease are respectively formed on the inner wall and the outer wall of the second sealing ring (15) along the circumferential direction.

5. The water blockage preventing gas water heater according to claim 4, wherein: the sealing structure includes a third gasket (16).

6. The water blockage resistant gas water heater according to claim 5, wherein: the first air inlet (11) is formed into a stepped hole, the end, with the larger aperture, of the stepped hole is the end of the first air inlet (11), the second thread is located at the end, with the smaller aperture, of the stepped hole, and the structures of the first water outlet (12) and the first water inlet (13) are the same as those of the first air inlet (11).