Smoke exhaust device of gas water heater

Abstract

The utility model discloses a smoke exhaust device of a gas water heater, which relates to the field of gas water heaters, and comprises a smoke pipe body penetrating through the inner side and the outer side of a wall body, bent clamping handles are symmetrically and rotatably arranged in the smoke pipe body, the end parts of the clamping handles penetrate out of the surface of the smoke pipe body and are hooked on the outer side of the wall body, and the inner end of the smoke pipe body is in threaded connection with a cap pipe. After the smoke pipe body penetrates through the wall body, the smoke pipe body is hooked on the outer wall surface through the clamping handle, the cap pipe pushes and abuts against the inner wall surface through threads, the smoke pipe body and the wall body are stably combined, and sealing materials are arranged at the contact position of the baffle ring and the inner wall surface, so that the smoke pipe body is provided with a firm installation structure, and the waterproof and windproof effects are good. Installation and operation are convenient.

Description

Technical Field

[0001] The utility model relates to the field of gas water heaters, and in particular to a smoke exhaust device for a gas water heater. Background Art

[0002] The smoke exhaust device is an important component of a gas water heater. The smoke hood installed on the top of the water heater is connected to the smoke pipe to discharge the gas generated by the combustion of gas to the outdoors. The smoke exhaust pipe needs to be installed through the wall, and a hole is opened in the wall to pass the smoke pipe through. In order to avoid air and water leakage between the smoke pipe and the hole and to increase the firmness of the smoke pipe, sealing material is generally filled between the smoke pipe and the hole. However, long-term high temperature environment can easily destroy the sealing material, resulting in water seepage through the hole, air leakage, and unstable fixation of the smoke pipe. Utility Model Content

[0003] In order to make up for the deficiencies of the existing technical problems, the purpose of the utility model is to provide a smoke exhaust device for a gas water heater, which is used to solve the problem that traditional smoke pipes passing through walls are difficult to be sealed and fixed for a long time.

[0004] In order to solve the problems of the prior art, the technical solutions of the present utility model are as follows:

[0005] A smoke exhaust device for a gas water heater includes a smoke pipe body that passes through the inside and outside of a wall. A bent handle is symmetrically rotated and installed inside the smoke pipe body. The end of the handle passes through the surface of the smoke pipe body and is hooked on the outside of the wall. The inner end of the smoke pipe body is threadedly connected to a cap pipe, which contacts the inner side of the wall.

[0006] Preferably, the cap tube includes a threaded ring, and a retaining ring extending outward is fixed to the end of the threaded ring.

[0007] Preferably, the surface of the retaining ring has a plurality of annular grooves.

[0008] Preferably, the portion where the handle hooks onto the outer wall is in the shape of an arc with the rotation point of the handle as the center.

[0009] Preferably, a pressing handle is fixed to one end of the clamping handle that is rotatably connected to the cigarette tube body.

[0010] Preferably, the outer end of the cigarette tube body is sealed, and through holes are evenly provided on the side surface of the outer end of the cigarette tube body.

[0011] Preferably, a plurality of funnel-shaped air guide rings are provided on the inner wall of the outer end of the smoke tube body, and the small openings of the air guide rings face outwards.

[0012] Compared with the prior art, the advantages of the present invention are as follows:

[0013] The utility model is to insert the smoke pipe body through the wall, hook the outer wall surface by the clamping handle, push the cap pipe thread to contact the inner wall surface, and stably combine the smoke pipe body with the wall surface. In addition, sealing material is provided at the contact position between the retaining ring and the inner wall surface, so that the smoke pipe body has a firm installation structure, has good waterproof and windproof effects, and is easy to install and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the retractable structure of the clamping handle of the present invention.

[0016] Figure 3 This is a schematic diagram of the expanded structure of the clamping handle of the present invention.

[0017] Figure 4 This is a schematic diagram of the cap tube structure of the present utility model.

[0018] Figure numerals: 1, cigarette tube body; 2, clamping handle; 3, cap tube; 31, threaded ring; 32, baffle ring; 4, through hole; 5, air guide ring; 6, pressing handle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1 As shown, the smoke exhaust device of the gas water heater has three main parts: the smoke pipe body 1, the clamping handle 2 and the cap pipe 3;

[0021] like Figure 2 、 Figure 3 As shown, the inner end of the cigarette tube body 1 is the plug end, and the outer end of the cigarette tube body 1 is the extension end, which is closed and has a plurality of through holes 4 for exhausting smoke on the side of the extension end. The middle part of the cigarette tube body 1 is an expanded diameter wall-penetrating portion, which is used to penetrate the hole in the wall. The outer surface of the inner end of the wall-penetrating portion of the cigarette tube body 1 is provided with an external thread.

[0022] like Figure 2 、 Figure 3 As shown, two clamping handles 2 are symmetrically placed in the cigarette tube body 1, and the inner ends of the clamping handles 2 are rotatably connected to the inner wall of the cigarette tube body 1 near the inner opening. The outer ends of the clamping handles 2 are bent, and the surface of the cigarette tube body 1 has a through-hole adapted to pass through the bent ends of the clamping handles 2;

[0023] like Figure 1 、 Figure 4As shown, the cap tube 3 includes a threaded ring 31 and a retaining ring 32. The inner side of the threaded ring 31 has an internal thread. The retaining ring 32 is fixed to the end of the threaded ring 31 and extends outward.

[0024] When installing the smoke exhaust device, put the bent end of the clamping handle 2 into the smoke pipe body 1, then pass the smoke pipe body 1 through the hole in the wall, then unfold the clamping handle 2 to hook the outer surface of the wall, and then thread the cap tube 3 onto the inner end of the smoke pipe body 1, rotate the cap tube 3 to make the retaining ring 32 touch the inner surface of the wall, and limit the two sides of the wall by the cap tube 3 and the clamping handle 2, so that the smoke pipe body 1 is stably fixed. Before tightening the cap tube 3, apply sealing material to the part where the retaining ring 32 contacts the wall, and form a seal by the retaining ring 32 being flat against the wall, and then use a bent pipe to connect the inner end of the smoke pipe body 1 to the smoke exhaust part of the gas water heater.

[0025] like Figure 4 As shown, the surface of the retaining ring 32 has a plurality of annular grooves, and a sealing material is attached to the surface of the retaining ring 32, so that the retaining ring 32 and the wall have a good sealing effect.

[0026] like Figure 3 As shown, the portion where the handle 2 is hooked on the outer wall is curved, and the curved profile is centered at the rotation point of the handle 2, so that the transmission end of the handle 2 can stably rotate through the surface of the cigarette tube body 1, and the arc-shaped curved portion can elastically contact the outer wall surface to form an elastic tensioning effect.

[0027] like Figure 2 、 Figure 3 As shown, a pressing handle 6 is fixed to one end of the clamping handle 2 that is rotatably connected to the cigarette tube body 1 , and the clamping handle 2 can be conveniently controlled to be retracted and extended by pressing the pressing handle 6 .

[0028] like Figure 2 、 Figure 3 As shown, a plurality of funnel-shaped air guide rings 5 are provided on the inner wall of the outer end of the smoke tube body 1, with the small openings of the air guide rings 5 facing outward. The air guide rings 5 are provided to block external airflow from entering the smoke tube body 1 and prevent wind from entering.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smoke exhaust device for a gas water heater, comprising a smoke pipe body (1) penetrating the inner and outer sides of a wall, characterized in that: A bent clamping handle (2) is symmetrically rotated and installed inside the cigarette tube body (1), and the end of the clamping handle (2) passes through the surface of the cigarette tube body (1) and is hooked on the outside of the wall. The inner end of the cigarette tube body (1) is threadedly connected to a cap tube (3), and the cap tube (3) contacts the inner side of the wall.

2. The smoke exhaust device of the gas water heater according to claim 1, characterized in that: The cap tube (3) comprises a threaded ring (31), and an outwardly extending retaining ring (32) is fixed to the end of the threaded ring (31).

3. The smoke exhaust device of the gas water heater according to claim 2, characterized in that: The surface of the retaining ring (32) has a plurality of annular grooves.

4. The smoke exhaust device of the gas water heater according to claim 1, characterized in that: The portion where the clamping handle (2) hooks onto the outer wall is in the shape of an arc with the rotation point of the clamping handle (2) as the center.

5. The smoke exhaust device of the gas water heater according to claim 1, characterized in that: A pressing handle (6) is fixed to one end of the clamping handle (2) that is rotatably connected to the cigarette tube body (1).

6. The smoke exhaust device of a gas water heater according to claim 1, characterized in that: The outer end of the cigarette tube body (1) is sealed, and through holes (4) are evenly arranged on the side surface of the outer end of the cigarette tube body (1).

7. The smoke exhaust device of the gas water heater according to claim 6, characterized in that: A plurality of funnel-shaped air guide rings (5) are provided on the inner wall of the outer end of the smoke tube body (1), and the small openings of the air guide rings (5) face outwards.

Images