Range hood sealing cover plate

By designing a range hood sealing cover with a reinforcement mechanism and using a combination of plug-in plates and reinforcements to connect them, the problem of easy breakage at the welding point between the sealing cover and the smoke outlet pipe is solved, stable connection and convenient maintenance are achieved, the check valve is prevented from falling, and the normal circulation of smoke is ensured.

CN223345456UActive Publication Date: 2025-09-16SHENGZHOU LANBAO ELECTRONICS & ELECTRICAL APPLIANCES FACTORY
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Patent Information

Application Number
CN202422778561.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-09-16
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

The welding point between the sealing cover plate and the smoke outlet pipe of the existing range hood is easy to break, causing the check valve to fall off, and failing to effectively prevent smoke backflow.

Method used

A range hood sealing cover is designed, which includes a smoke outlet pipe, a sealing cover, a reinforcement mechanism and an auxiliary mechanism. The first plug-in plate and the second plug-in plate are connected by a locking mechanism, combined with the welding of the reinforcement piece, to ensure a stable connection between the sealing cover and the smoke outlet pipe, thereby avoiding separation after breakage.

Benefits of technology

It effectively prevents the sealing cover from separating from the smoke outlet pipe, avoids the check valve from falling, ensures the normal flow of smoke into the central pipeline, and improves the stability of the connection and the convenience of maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223345456U_ABST
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Abstract

The utility model discloses a kitchen ventilator sealing cover plate, which relates to the technical field of kitchen ventilators, and comprises a smoke outlet pipe and an auxiliary mechanism, the end part of the smoke outlet pipe is provided with the sealing cover plate, the auxiliary mechanism is arranged between the smoke outlet pipe and the sealing cover plate, the auxiliary mechanism comprises a first insertion plate and a second insertion plate, the first insertion plate is fixedly connected to the back surface of the sealing cover plate, and the second insertion plate is fixedly connected to the back surface of the sealing cover plate. The first inserting plate is inserted into the inner wall of the smoke outlet pipe, the second inserting plate is fixedly connected to the back face of the sealing cover plate, the second inserting plate is inserted into the back face of the smoke outlet pipe, and the first inserting plate, the second inserting plate and the sealing cover plate are integrally arranged. According to the utility model, the first inserting plate and the second inserting plate are arranged, and the first inserting plate and the second inserting plate extend into the smoke outlet pipe, so that the sealing cover plate cannot be separated from the smoke outlet pipe through the clamping of the smoke outlet pipe on the first inserting plate and the second inserting plate after the welding and fixing part between the sealing cover plate and the smoke outlet pipe is cracked; therefore, the phenomenon that the check valve connected with the sealing cover plate falls off can be avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a sealing cover plate of a range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly remove stove combustion waste and oil fumes generated during cooking that are harmful to the human body.

[0003] A check valve is installed at the end of the smoke outlet pipe of the range hood, so that the smoke sucked in by the range hood can flow into the central pipe, but the smoke in the central pipe will not flow back. The check valve cannot be directly installed on the smoke outlet pipe. A sealing cover plate needs to be fixed at the end of the smoke outlet pipe. The check valve can be directly installed on the sealing cover plate. Most of the current sealing covers are directly welded to the smoke outlet pipe. However, as the range hood works for a long time, there is a phenomenon that the welding point between the sealing cover plate and the smoke outlet pipe breaks, which will cause the check valve to fall directly with the sealing cover plate. For this reason, we propose a sealing cover plate for the range hood. Utility Model Content

[0004] The purpose of the present utility model is to provide a sealing cover for a range hood to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a range hood sealing cover, comprising:

[0006] A smoke outlet pipe, wherein a sealing cover plate is provided at the end of the smoke outlet pipe, the smoke outlet pipe and the sealing cover plate are welded and fixed, a reinforcement mechanism is provided between the smoke outlet pipe and the sealing cover plate, and a connecting mechanism is provided below the smoke outlet pipe;

[0007] An auxiliary mechanism is arranged between the smoke outlet pipe and the sealing cover plate. The auxiliary mechanism includes a first plug-in plate and a second plug-in plate. The first plug-in plate is fixedly connected to the back of the sealing cover plate, and the first plug-in plate is inserted into the inner wall of the smoke outlet pipe. The second plug-in plate is fixedly connected to the back of the sealing cover plate, and the second plug-in plate is inserted into the back of the smoke outlet pipe. The first plug-in plate, the second plug-in plate and the sealing cover plate are integrated into one piece.

[0008] Preferably, the connecting mechanism includes a sealing plate, a fan disc is provided on the top of the sealing plate, and the smoke outlet pipe is fixedly connected to the air outlet of the fan disc.

[0009] Preferably, the reinforcement mechanism includes a reinforcement piece, a front side of the reinforcement piece is fixedly connected to a back side of the sealing cover plate, and an outer wall of the reinforcement piece is fixedly connected to an outer wall of the smoke outlet pipe.

[0010] Preferably, a plurality of mounting holes are provided on the front surface of the sealing cover plate, and the mounting holes are used to connect the sealing cover plate with an external check valve.

[0011] Preferably, a first connection hole is formed at the top of the first plugboard, and a second connection hole is formed at the top of the second plugboard, and the first connection hole and the second connection hole are staggered.

[0012] Preferably, a third connecting hole is provided at the top end of the smoke outlet pipe, and a fourth connecting hole is provided at the bottom end of the smoke outlet pipe, and the third connecting hole and the fourth connecting hole are staggered.

[0013] Preferably, the position of the first connection hole corresponds to the position of the fourth connection hole, and the position of the second connection hole corresponds to the position of the third connection hole.

[0014] The technical effects and advantages of this utility model are:

[0015] The utility model utilizes the arrangement of the first plug plate and the second plug plate. The first plug plate and the second plug plate are extended into the interior of the smoke outlet pipe. When the welding fixing portion between the sealing cover plate and the smoke outlet pipe is cracked, the smoke outlet pipe can clamp the first plug plate and the second plug plate so that the sealing cover plate will not be separated from the smoke outlet pipe, thereby preventing the non-return valve connected to the sealing cover plate from falling off. In addition, the first plug plate, the second plug plate and the sealing cover plate are integrally arranged, so that the connection between the first plug plate, the second plug plate and the sealing cover plate is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the side sectional structure of the sealing cover plate of the utility model.

[0018] In the figure: 101, smoke outlet pipe; 102, sealing cover; 201, first plug plate; 202, second plug plate; 301, sealing plate; 302, fan disc; 401, reinforcement; 501, mounting hole; 601, first connecting hole; 602, second connecting hole; 701, third connecting hole; 702, fourth connecting hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The utility model provides Figure 1-Figure 2 The illustrated range hood sealing cover comprises a smoke outlet pipe 101 and an auxiliary mechanism. A sealing cover 102 is provided at the end of the smoke outlet pipe 101. The smoke outlet pipe 101 and the sealing cover 102 are welded and fixed. A reinforcement mechanism is provided between the smoke outlet pipe 101 and the sealing cover 102. A connecting mechanism is provided below the smoke outlet pipe 101. The connecting mechanism comprises a sealing plate 301. A fan disk 302 is provided at the top of the sealing plate 301. The smoke outlet pipe 101 is fixedly connected to the air outlet of the fan disk 302. A plurality of mounting holes 501 are provided on the front of the sealing cover 102. The mounting hole 501 is used to connect the sealing cover plate 102 with the external check valve. The fan is installed inside the fan disk 302, so that when the fan is working, the oil smoke enters the fan disk 302 through the sealing plate 301, and then is discharged through the smoke outlet pipe 101. By matching the bolts with the mounting hole 501, the check valve can be installed on the sealing cover plate 102 and connected to the smoke outlet pipe 101, so that the smoke in the smoke outlet pipe 101 can flow into the central pipe through the check valve, but the smoke in the central pipe cannot flow back to the inside of the smoke outlet pipe 101 through the check valve.

[0021] In a preferred embodiment, the auxiliary mechanism is arranged between the smoke outlet pipe 101 and the sealing cover plate 102, and the auxiliary mechanism includes a first plug plate 201 and a second plug plate 202. The first plug plate 201 is fixedly connected to the back of the sealing cover plate 102, the first plug plate 201 is inserted into the inner wall of the smoke outlet pipe 101, and the second plug plate 202 is fixedly connected to the back of the sealing cover plate 102, and the second plug plate 202 is inserted into the back of the smoke outlet pipe 101. The first plug plate 201, the second plug plate 202 and the sealing cover plate 102 are arranged in an integrated manner. The first plug plate 201 and the second plug plate 202 extend into the interior of the smoke outlet pipe 101, so that when the welding fixing between the sealing cover plate 102 and the smoke outlet pipe 101 is cracked, the smoke outlet pipe 101 can be used to connect the first plug plate 201 to the sealing cover plate 102. The locking position of the plug plate 201 and the second plug plate 202 prevents the sealing cover plate 102 from being separated from the smoke outlet pipe 101, thereby preventing the check valve connected to the sealing cover plate 102 from falling off. The first plug plate 201, the second plug plate 202 and the sealing cover plate 102 are integrally arranged, making the connection between the first plug plate 201, the second plug plate 202 and the sealing cover plate 102 more stable. The first plug plate 201 and the second plug plate 202 are processed by bending. During the processing, an H-shaped groove is first cut out on the front side of the sealing cover plate 102 to obtain the first plug plate 201 and the second plug plate 202 in a vertical state, and then the first plug plate 201 and the second plug plate 202 are bent, and the processing method is simple.

[0022] Among them, the reinforcement mechanism includes a reinforcement 401, the front of the reinforcement 401 is fixedly connected to the back of the sealing cover plate 102, the outer wall of the reinforcement 401 is fixedly connected to the outer wall of the smoke outlet pipe 101, and the sealing cover plate 102 and the smoke outlet pipe 101 are connected through the reinforcement 401, and the reinforcement 401 and the smoke outlet pipe 101 as well as the reinforcement 401 and the sealing cover plate 102 are also fixed by welding, thereby improving the stability of the connection between the sealing cover plate 102 and the smoke outlet pipe 101.

[0023] Among them, a first connecting hole 601 is opened at the top of the first plug plate 201, and a second connecting hole 602 is opened at the top of the second plug plate 202. The first connecting hole 601 and the second connecting hole 602 are staggered. A third connecting hole 701 is opened at the top of the smoke outlet pipe 101, and a fourth connecting hole 702 is opened at the bottom of the smoke outlet pipe 101. The third connecting hole 701 and the fourth connecting hole 702 are staggered. The position of the first connecting hole 601 corresponds to the position of the fourth connecting hole 702, and the position of the second connecting hole 602 corresponds to the position of the third connecting hole 701. When the welding fixing between the smoke outlet pipe 101 and the sealing cover plate 102 is cracked, the sealing cover plate 102 can be directly pulled out until the first plug plate 201 and the second plug plate 202 are separated from the smoke outlet pipe 101, and then the sealing cover plate 102 is turned 180 degrees, and the third connecting hole 701 is pulled out. The first plug plate 201 and the second plug plate 202 are inserted into the smoke outlet pipe 101. At this time, the second plug plate 202 is above the first plug plate 201, and the second connecting hole 602 on the second plug plate 202 is aligned with the third connecting hole 701, and the mounting hole 501 on the first plug plate 201 is aligned with the fourth connecting hole 702. Pick up the matching bolts, and insert the bolts through the second connecting hole 602 and the third connecting hole 701 from the inside of the smoke outlet pipe 101 in sequence, and then tighten them with nuts on the outside of the smoke outlet pipe 101. Then use another bolt to insert the first connecting hole 601 and the fourth connecting hole 702 from the inside of the smoke outlet pipe 101 in sequence, and then tighten them with nuts on the outside of the smoke outlet pipe 101. The smoke outlet pipe 101 and the sealing cover plate 102 can be fixed by bolts and nuts, which facilitates quick maintenance of the separated sealing cover plate 102 and the smoke outlet pipe 101.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A range hood sealing cover, characterized in that: include: A smoke outlet pipe (101), wherein a sealing cover plate (102) is provided at the end of the smoke outlet pipe (101), the smoke outlet pipe (101) and the sealing cover plate (102) are welded and fixed, a reinforcement mechanism is provided between the smoke outlet pipe (101) and the sealing cover plate (102), and a connecting mechanism is provided below the smoke outlet pipe (101); An auxiliary mechanism is provided between the smoke outlet pipe (101) and the sealing cover (102), and comprises a first plug plate (201) and a second plug plate (202), wherein the first plug plate (201) is fixedly connected to the back of the sealing cover (102), and the first plug plate (201) is inserted into the inner wall of the smoke outlet pipe (101), and the second plug plate (202) is fixedly connected to the back of the sealing cover (102), and the second plug plate (202) is inserted into the back of the smoke outlet pipe (101), and the first plug plate (201), the second plug plate (202) and the sealing cover (102) are integrally provided.

2. The range hood sealing cover according to claim 1, characterized in that: The connection mechanism comprises a sealing plate (301), a fan disk (302) is provided at the top end of the sealing plate (301), and the smoke outlet pipe (101) is fixedly connected to the air outlet of the fan disk (302).

3. The range hood sealing cover according to claim 1, characterized in that: The reinforcement mechanism comprises a reinforcement member (401), the front surface of the reinforcement member (401) is fixedly connected to the back surface of the sealing cover plate (102), and the outer wall of the reinforcement member (401) is fixedly connected to the outer wall of the smoke outlet pipe (101).

4. The range hood sealing cover according to claim 1, characterized in that: A plurality of mounting holes (501) are provided on the front surface of the sealing cover plate (102), and the mounting holes (501) are used to connect the sealing cover plate (102) to an external check valve.

5. The range hood sealing cover according to claim 1, characterized in that: A first connection hole (601) is provided at the top end of the first plug plate (201), and a second connection hole (602) is provided at the top end of the second plug plate (202). The first connection hole (601) and the second connection hole (602) are staggered.

6. The range hood sealing cover according to claim 5, characterized in that: A third connecting hole (701) is provided at the top end of the smoke outlet pipe (101), and a fourth connecting hole (702) is provided at the bottom end of the smoke outlet pipe (101), wherein the third connecting hole (701) and the fourth connecting hole (702) are staggered.

7. The range hood sealing cover according to claim 6, characterized in that: The position of the first connection hole (601) corresponds to the position of the fourth connection hole (702), and the position of the second connection hole (602) corresponds to the position of the third connection hole (701).