Low-noise gas water heater shell

Abstract

The low-noise gas water heater shell comprises a face cover, sound absorption cotton, an outer shell, a check ring, silencing sponge, a silencing plate and a back baffle, an opening is formed in the front end of the outer shell, a water heater assembly can be placed in the outer shell, the face cover can cover the opening in the front end of the outer shell, and the sound absorption cotton is fixed to a panel and located in the outer shell. An exhaust port is formed in the top end of the shell, the check ring is annular and elastic, the outer ring of the check ring is in sealed connection with the edge of the exhaust port, the inner ring of the check ring is in sealed connection with the outer wall of the exhaust pipe, the air inlet groove is located below the groove and communicated with the groove, an air inlet is formed in the groove in a penetrating mode, and the noise reduction sponge and the noise reduction plate are fixed to the front face of the back baffle. The silencing sponge and the silencing plate are located in the air channel, air can enter the air channel from the air inlet groove and then enter the shell through the air inlet, and the silencing sponge and the silencing plate can reduce the speed of airflow in the air channel. The utility model has the advantages of simple structure and low use noise.

Description

Technical Field

[0001] The utility model relates to a water heater shell, in particular to a low-noise gas water heater shell. Background Art

[0002] Gas water heaters, as a common type of water heater, have entered thousands of households. However, the air inlet of current gas water heaters usually lacks a noise suppression design, resulting in excessive noise during air intake, and the sound inside the water heater can easily be transmitted through the air inlet, affecting the user experience. Utility Model Content

[0003] In order to overcome the above defects, the utility model provides a low-noise gas water heater shell, which has the advantages of simple structure and low noise in use.

[0004] The utility model adopts the following technical solution to solve the technical problem: a low-noise gas water heater shell, comprising: a face cover, sound-absorbing cotton, an outer shell, a retaining ring, a sound-absorbing sponge, a sound-absorbing plate and a back retaining plate, the front end of the outer shell is open, the water heater assembly can be placed inside the outer shell, the face cover can cover the opening at the front end of the outer shell, the sound-absorbing cotton is fixed to the panel and is located inside the outer shell, an exhaust port is opened at the top of the outer shell, the retaining ring is annular and elastic, the outer ring of the retaining ring is sealed and connected to the edge of the exhaust port, the inner ring of the retaining ring is sealed and connected to the outer wall of the exhaust pipe, and the rear end of the outer shell is provided with There is a groove and an air inlet groove, the air inlet groove is located below the groove and connected with the groove, an air inlet is opened through the groove, a silencing sponge and a silencing plate are fixed to the front of the back baffle, the back baffle is fixed to the rear end of the shell and covers the groove, an air duct is formed between the back baffle and the groove, the silencing sponge and the silencing plate are located in the air duct, the silencing plate is located above the air inlet, and the silencing sponge is located below the air inlet. Air can enter the air duct from the air inlet groove and then enter the shell through the air inlet. The silencing sponge and the silencing plate can reduce the speed of the airflow in the air duct.

[0005] Optionally, the sound-absorbing cotton is fixed to the surface cover by glue, the sound-absorbing sponge is fixed to the front of the back baffle by glue, and the sound-absorbing plate is fixed to the front of the back baffle by glue dispensing.

[0006] Optionally, a baffle for rebounding airflow is protruding from the muffler plate.

[0007] Optionally, the retaining ring is made of rubber, the outer ring of the retaining ring is provided with a circle of fixing grooves, the edge of the exhaust port can be inserted into the fixing grooves, and the inner ring of the retaining ring is provided with an annular groove that can cooperate with the outer wall of the exhaust pipe.

[0008] Optionally, the air inlet is covered with a dustproof net.

[0009] Optionally, the back baffle is detachably fixed to the rear end of the housing by bolts.

[0010] The beneficial technical effect of the utility model is as follows: the low-noise gas water heater shell includes: a face cover, sound-absorbing cotton, a shell, a retaining ring, a sound-absorbing sponge, a sound-absorbing plate and a back baffle. When in use, air enters the air duct formed by the groove and the back baffle from the air inlet groove, part of the air in the air duct enters the shell from the air inlet, and the other part of the air flows in the air duct. When the air hits the sound-absorbing sponge and the sound-absorbing plate, the air flow rate is reduced, thereby achieving the effect of reducing the air intake noise. In addition, since the retaining ring and the exhaust port and the outer wall of the exhaust pipe are sealed and connected, the noise of the water heater assembly in the shell can be prevented from being transmitted from the exhaust port, and the sound-absorbing sponge can absorb part of the noise transmitted from the air inlet after entering the air duct. In addition, with the blocking of the back baffle and the sound-absorbing cotton, the operating noise can be effectively reduced. Not only is the structure simple and practical, but the noise is also small. It has the advantages of simple structure and low noise in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional exploded view of the whole machine of the utility model;

[0012] Figure 2 It is a rear view of the whole machine of the utility model;

[0013] Figure 3 It is a rear view of the whole machine of the utility model excluding the back baffle;

[0014] in:

[0015] 1. Surface cover; 2. Sound-absorbing cotton; 3. Shell; 4. Retaining ring; 5. Silencing sponge; 6. Silencing board; 7. Back baffle; 8. Groove; 9. Air intake slot. DETAILED DESCRIPTION

[0016] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0017] This specific embodiment records in detail the low noise gas water heater housing described in this application, such as Figure 1-Figure 3As shown, the low-noise gas water heater shell includes: a cover 1, sound-absorbing cotton 2, a shell 3, a retaining ring 4, a sound-absorbing sponge 5, a sound-absorbing plate 6 and a back baffle 7. The front end of the shell 3 is open, and the water heater assembly can be placed inside the shell 3. The cover 1 can cover the opening at the front end of the shell 3. The sound-absorbing cotton 2 is fixed to the panel and located inside the shell 3. The top of the shell 3 is provided with an exhaust port. The retaining ring 4 is annular and elastic. The outer ring of the retaining ring 4 is sealed and connected to the edge of the exhaust port. The inner ring of the retaining ring 4 is sealed and connected to the outer wall of the exhaust pipe. The rear end of the shell 3 is provided with a groove 8 and an air inlet groove 9. The air inlet groove 9 is located below the groove 8 and is connected with the groove 8. An air inlet is opened through the groove 8. The silencing sponge 5 and the silencing plate 6 are fixed to the front of the back baffle 7. The back baffle 7 is fixed to the rear end of the shell 3 and covers the groove 8. An air duct is formed between the back baffle 7 and the groove 8. The silencing sponge 5 and the silencing plate 6 are located in the air duct. The silencing plate 6 is located above the air inlet. The silencing sponge 5 is located below the air inlet. Air can enter the air duct from the air inlet groove 9 and then enter the shell 3 through the air inlet. The silencing sponge 5 and the silencing plate 6 can reduce the speed of the airflow in the air duct. When in use, air enters the air duct formed by the groove 8 and the back baffle 7 from the air inlet groove 9. Part of the air in the air duct enters the housing 3 from the air inlet, and the other part of the air flows in the air duct. When the air hits the silencer sponge 5 and the silencer plate 6, the air flow rate is reduced, thereby achieving the effect of reducing the intake noise. In addition, since the retaining ring 4 is sealed and connected with the exhaust port and the outer wall of the exhaust pipe, the noise of the water heater assembly in the housing 3 can be prevented from being transmitted from the exhaust port. After the noise transmitted from the air inlet enters the air duct, the silencer sponge 5 can absorb part of the noise. In addition, with the blocking of the back baffle 7 and the sound-absorbing cotton 2, the operating noise can be effectively reduced. Not only is the structure simple and practical, but the noise is also small. It has the advantages of simple structure and low noise in use.

[0018] In this embodiment, optionally, the sound-absorbing cotton 2 is fixed to the surface cover 1 by glue, the sound-absorbing sponge 5 is fixed to the front of the back baffle 7 by glue, and the sound-absorbing plate 6 is fixed to the front of the back baffle 7 by glue dispensing.

[0019] In this embodiment, a baffle for rebounding the airflow is optionally provided on the muffler plate 6. The airflow rebounds after hitting the baffle, and consumes the energy of the airflow in the rebound process, thereby reducing the speed of the airflow and achieving the effect of noise reduction.

[0020] Optionally, in this embodiment, the retaining ring 4 is made of rubber material, and the outer ring of the retaining ring 4 is provided with a circle of fixing grooves, the edge of the exhaust port can be inserted into the fixing grooves, and the inner ring of the retaining ring 4 is provided with an annular groove that can cooperate with the outer wall of the exhaust pipe, so as to improve the sealing effect. At the same time, the retaining ring 4 and the exhaust port are connected by a snap-on connection to facilitate disassembly and assembly, and the user can also replace retaining rings 4 of different sizes according to exhaust pipes of different thicknesses.

[0021] Optionally in this embodiment, the air inlet is covered with a dustproof net, which can prevent dust from entering the interior of the housing 3.

[0022] Optionally, in this embodiment, the back baffle 7 is detachably fixed to the rear end of the housing 3 by bolts, and the back baffle 7 is configured as a detachable structure to facilitate users to clean dust regularly.

[0023] The low-noise gas water heater housing of this embodiment has the advantages of simple structure and low noise in use.

Claims

1. A low-noise gas water heater housing, characterized in that: include: The front cover (1), the sound-absorbing cotton (2), the outer shell (3), the retaining ring (4), the sound-absorbing sponge (5), the sound-absorbing plate (6) and the back retaining plate (7); the front end of the outer shell (3) is open, and the water heater assembly can be placed inside the outer shell (3); the front cover (1) can cover the opening at the front end of the outer shell (3); the sound-absorbing cotton (2) is fixed to the panel and is located inside the outer shell (3); an exhaust port is opened at the top of the outer shell (3); the retaining ring (4) is annular and elastic; the outer ring of the retaining ring (4) is sealed to the edge of the exhaust port; the inner ring of the retaining ring (4) is sealed to the outer wall of the exhaust pipe; the rear end of the outer shell (3) is provided with a groove (8) and an air inlet groove (9); the air inlet groove (9) is located at The groove (8) is below the groove (8) and is in communication with the groove (8). An air inlet is formed through the groove (8). The silencing sponge (5) and the silencing plate (6) are fixed to the front of the back baffle (7). The back baffle (7) is fixed to the rear end of the shell (3) and covers the groove (8). An air duct is formed between the back baffle (7) and the groove (8). The silencing sponge (5) and the silencing plate (6) are located in the air duct. The silencing plate (6) is located above the air inlet. The silencing sponge (5) is located below the air inlet. Air can enter the air duct from the air inlet groove (9) and then enter the shell (3) through the air inlet. The silencing sponge (5) and the silencing plate (6) can reduce the speed of the air flow in the air duct.

2. The low noise gas water heater housing according to claim 1, characterized in that: The sound-absorbing cotton (2) is fixed to the surface cover (1) by glue, the sound-absorbing sponge (5) is fixed to the front of the back baffle (7) by glue, and the sound-absorbing plate (6) is fixed to the front of the back baffle (7) by glue spotting.

3. The low noise gas water heater housing according to claim 1, characterized in that: The muffler plate (6) is protrudingly provided with a baffle for rebounding airflow.

4. The low noise gas water heater housing according to claim 1, characterized in that: The retaining ring (4) is made of rubber material, the outer ring of the retaining ring (4) is provided with a circle of fixing grooves, the edge of the exhaust port can be inserted into the fixing grooves, and the inner ring of the retaining ring (4) is provided with an annular groove that can cooperate with the outer wall of the exhaust pipe.

5. The low noise gas water heater housing according to claim 1, characterized in that: The air inlet is covered with a dustproof net.

6. The low noise gas water heater housing according to claim 1, characterized in that: The back baffle (7) is detachably fixed to the rear end of the housing (3) by means of bolts.

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