Backpressure testing device of range hood

Abstract

The utility model relates to the technical field of range hood testing, in particular to a back pressure testing device of a range hood. Comprising a range hood supporting assembly, a plurality of range hoods, a back pressure debugging assembly and a smoke outlet pipe, each range hood is provided with a smoke outlet and a smoke exhaust pipe, each range hood is detachably installed on the range hood supporting assembly, and one end of each smoke exhaust pipe is communicated with the smoke outlet; the backpressure debugging assembly is provided with an air outlet and a plurality of air inlets, and each air inlet is communicated with the other end of the smoke exhaust pipe of each range hood; and the connecting end of the smoke outlet pipe is communicated with the air outlet. The utility model aims to solve the problem that the test result of each range hood is not accurate due to the fact that the back pressure test of a plurality of range hoods is difficult to be carried out by the existing test device at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of range hood testing, in particular to a back pressure testing device for a range hood. Background Art

[0002] A range hood is typically installed above a kitchen stove. Its primary function is to quickly extract and exhaust harmful cooking fumes from stovetop combustion and the cooking process. It also collects the condensed oil from the fumes. The range hood consists of three main steps: fume extraction, fume separation, and residual gas exhaust. When the range hood is powered on, the motor rotates at high speed, driving the impeller at the same time. This creates a vortex of negative pressure, drawing the fumes into the hood. After passing through the filter and centrifugal force, the fumes are separated and discharged through a check valve and exhaust pipe.

[0003] Currently, after a range hood is designed and manufactured, its ability to extract oil fumes needs to be tested. This effectiveness is primarily determined by indicators such as air volume, rotational speed, and power. Existing testing devices test a single range hood individually. Because the back pressure within the testing device and the wind pressure generated by the range hood's fan interact, the actual back pressure varies for each range hood tested. Therefore, the data measured for a single range hood can only be used as a reference. Existing testing devices are unable to perform back pressure tests on multiple range hoods simultaneously, resulting in inaccurate exhaust test results for each range hood when multiple range hoods are in use simultaneously. Utility Model Content

[0004] The purpose of the utility model is to provide a back pressure testing device for a range hood, which is used to solve the problem that existing testing devices are difficult to perform back pressure tests on multiple range hoods at the same time, resulting in inaccurate test results for each range hood.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a back pressure testing device for a range hood, comprising:

[0006] Range hood support assembly;

[0007] A range hood, wherein a plurality of range hoods are provided, each of the range hoods having a smoke exhaust port and a smoke exhaust pipe, each of the range hoods being detachably mounted on a range hood support assembly, one end of the smoke exhaust pipe being in communication with the smoke exhaust port;

[0008] A back pressure debugging component, the back pressure debugging component having an air outlet and a plurality of air inlets, each of the air inlets being connected to the other end of the exhaust pipe of each of the range hoods;

[0009] A smoke outlet pipe, wherein the connecting end of the smoke outlet pipe is connected to the air outlet.

[0010] According to one embodiment of the present invention, the back pressure debugging assembly includes a back pressure debugging shell and a back pressure debugging fan, the back pressure debugging shell is provided with a debugging channel, the debugging channel includes an air chamber portion and an adjustment portion, the air chamber portion is connected to the adjustment portion, the air chamber portion is provided with a plurality of the air inlets, the adjustment portion is provided with the air outlet, and the back pressure debugging fan is detachably installed in the adjustment portion.

[0011] According to one embodiment of the present invention, the back pressure adjustment housing is a transparent back pressure adjustment housing.

[0012] According to one embodiment of the present invention, the back pressure debugging assembly further includes a partition plate, the partition plate is provided with a partition plate hole, the partition plate is detachably installed in the air chamber portion, and a plurality of the partition plate holes are provided.

[0013] According to one embodiment of the present invention, a regulating valve for adjusting the air volume and air pressure in the smoke outlet pipe is detachably installed in the smoke outlet pipe.

[0014] According to one embodiment of the present invention, an electronic device is further included, and the back pressure debugging fan and the regulating valve are both electrically connected to the electronic device.

[0015] According to one embodiment of the present invention, the range hood support assembly includes a back plate and a support platform, the back plate is detachably connected to the support platform, and multiple range hoods can be detachably mounted on the back plate, and the support platform is located at the bottom of multiple range hoods.

[0016] According to one embodiment of the present invention, each of the range hoods includes a range hood body and an air collection component, the range hood body has an air intake port and a smoke outlet, the air collection component has a smoke inlet and the smoke exhaust port, and the smoke inlet is connected to the smoke outlet.

[0017] According to one embodiment of the present invention, the range hood further includes a baffle, and two baffles are provided. Both baffles are located at the bottom of the range hood, and the two baffles are detachably installed on the left and right sides of the range hood, respectively.

[0018] According to one embodiment of the present utility model, the range hood body also includes a main body shell and an oil cup. The main body shell is provided with the air intake and smoke outlet, and an oil leakage channel is provided in the main body shell. The oil cup is detachably mounted on the main body shell and is located at the bottom of the oil leakage channel.

[0019] Compared with the prior art, the back pressure testing device for range hoods of the present invention has the following advantages:

[0020] The utility model provides a back pressure testing device for a range hood. Through the arrangement of a range hood support assembly, a range hood, a back pressure adjustment assembly and a smoke outlet pipe, after the range hood is fixed on the range hood support assembly, the range hood support assembly supports the range hood. During the test of the range hood, the oil smoke of each range hood is discharged from the smoke outlet into the smoke outlet pipe, and the oil smoke in multiple smoke outlet pipes all enters the back pressure adjustment assembly; at the same time, the back pressure adjustment assembly is adjusted to generate back pressure in the back pressure adjustment assembly, thereby simulating the influence of multiple range hoods on each range hood when working, thereby achieving faster back pressure testing of each range hood, and further making the smoke exhaust test result of each range hood more accurate in an environment where multiple range hoods are used at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0022] Figure 1 The utility model is a structural schematic diagram of a back pressure testing device for a range hood.

[0023] Figure 2 This is a schematic diagram of the structure of a range hood support assembly in a back pressure testing device for a range hood according to the present invention.

[0024] Figure 3 The utility model is a schematic structural diagram of a range hood in a back pressure testing device of the range hood.

[0025] In the figure: range hood support assembly 1, back plate 11, support platform 12, range hood 2, smoke exhaust pipe 21, range hood body 22, air collection assembly 23, baffle 24, main body shell 25, oil cup 26, back pressure adjustment assembly 3, back pressure adjustment shell 31, air chamber part 311, adjustment part 312, back pressure adjustment fan 32, partition 33, smoke outlet pipe 4, regulating valve 5, electronic equipment 6.

[0026] The realization of the functions and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0031] See also Figures 1 to 3 The present invention provides a range hood back pressure test device, comprising a range hood support assembly 1, a range hood 2, a back pressure adjustment assembly 3, and a smoke outlet pipe 4. The range hood support assembly 1 is used to support the range hood 2, allowing staff to better simulate the range hood 2 operating in the kitchen when testing the range hood 2.

[0032] Multiple range hoods 2 are provided, each having a smoke exhaust port and a smoke exhaust pipe 21. Each range hood 2 is detachably mounted on the range hood support assembly 1, with one end of the smoke exhaust pipe 21 communicating with the smoke exhaust port. In this embodiment, three range hoods 2 are provided, each mounted on the range hood support assembly 1, spaced from left to right. During testing of the range hoods 2, fumes from each range hood 2 are discharged from the smoke exhaust port into the smoke exhaust pipe 21. Fumes from all three exhaust pipes 21 enter the backpressure test assembly 3, facilitating backpressure testing of the three range hoods 2.

[0033] The backpressure adjustment assembly 3 has an air outlet and multiple air inlets, each of which is connected to the other end of the exhaust pipe 21 of each range hood 2. During testing of the range hood 2, the oil smoke in each exhaust pipe 21 enters the backpressure adjustment assembly 3 through its corresponding air inlet. The backpressure adjustment assembly 3 is then adjusted to adjust the airflow entering the outside world through the air outlet, thereby generating different air pressures within the backpressure adjustment assembly 3 and performing a backpressure test on the range hood 2.

[0034] The connection end of the smoke outlet pipe 4 is connected to the air outlet. Fumes exhausted from the range hood 2 flow through the back-pressure adjustment assembly 3 and into the smoke outlet pipe 4 before being exhausted to the outside. Simultaneously, during testing of the range hood 2, outside air enters the back-pressure adjustment assembly 3 through the smoke outlet pipe 4, thereby generating back pressure within the back-pressure adjustment assembly 3, thereby facilitating testing of the range hood 2.

[0035] The back pressure testing device for a range hood of the present invention is configured such that after the range hood 2 is fixed on the range hood support assembly 1, the range hood support assembly 1 supports the range hood 2. During the testing of the range hood 2, the oil smoke of each range hood 2 is discharged from the exhaust port into the exhaust pipe 21, and the oil smoke in the multiple exhaust pipes 21 all enters the back pressure debugging assembly 3; at the same time, the back pressure debugging assembly 3 is adjusted to generate back pressure in the back pressure debugging assembly 3, thereby simulating the influence of multiple range hoods 2 on each range hood 2 when working, thereby achieving faster back pressure testing of each range hood 2 and more accurate exhaust test results for each range hood 2 in an environment where multiple range hoods 2 are used at the same time.

[0036] Based on the above examples, please refer to Figure 1 The back pressure debugging assembly 3 of the present invention includes a back pressure debugging shell 31 and a back pressure debugging fan 32. The back pressure debugging shell 31 has a debugging channel, and the debugging channel includes an air chamber portion 311 and an adjustment portion 312. The air chamber portion 311 is connected to the adjustment portion 312. The air chamber portion 311 is provided with a plurality of air inlets, and the adjustment portion 312 is provided with the air outlet. The back pressure debugging fan 32 is detachably installed in the adjustment portion 312. By setting up the back pressure debugging shell 31 and the back pressure debugging fan 32, when the staff is testing multiple range hoods 2, the oil smoke in each exhaust pipe 21 enters the air chamber part 311 through the corresponding air inlet. The air chamber part 311 gathers the oil smoke discharged from all the exhaust pipes 21, and starts the back pressure debugging fan 32 in the adjustment part 312. The outside air enters the back pressure debugging component 3 from the exhaust pipe 4, thereby generating back pressure in the air chamber part 311, so as to facilitate the simultaneous back pressure testing of multiple range hoods 2, and thus more accurately test the exhaust of each range hood 2 in an environment where multiple range hoods 2 are used at the same time.

[0037] Based on the above examples, please refer to Figure 1 The back pressure adjustment housing 31 of the present invention is transparent. Specifically, the transparent back pressure adjustment housing 31 is made of transparent plastic or glass. This allows staff to better understand and grasp the conditions inside the back pressure adjustment housing 31 during testing of multiple range hoods 2.

[0038] Based on the above examples, please refer to Figure 1 The back pressure debugging assembly 3 of the present invention also includes a partition 33, on which a partition 33 hole is opened. The partition 33 can be detachably installed in the air chamber portion 311, and a plurality of partition 33 holes are opened. In this embodiment, the partition 33 is a copper plate, on which a plurality of partition 33 holes are opened, and the partition 33 can be detachably installed in the air chamber portion 311 by bonding. Through the setting of the partition 33, the partition 33 blocks the oil smoke discharged from all the exhaust pipes 21, so that the oil smoke discharged from all the exhaust pipes 21 can be better gathered in the air chamber portion 311, thereby enhancing the back pressure in the air chamber portion 311, so as to better simulate the actual back pressure environment, so that the test environment of each range hood 2 is more in line with reality.

[0039] Based on the above examples, please refer to Figure 1 and Figure 3 The smoke outlet pipe 4 of the present invention is detachably mounted with a regulating valve 5 for adjusting the air volume and pressure within the smoke outlet pipe 4. In this embodiment, the regulating valve 5 is detachably mounted within the smoke outlet pipe 4 by bonding. By configuring the regulating valve 5, personnel can quickly adjust the air volume and pressure within the smoke outlet pipe 4 by controlling the regulating valve 5 when testing multiple range hoods 2, thereby quickly adjusting the air pressure within the debugging channel.

[0040] Based on the above examples, please refer to Figure 1 The present invention further includes an electronic device 6, and the back pressure debugging fan 32 and the regulating valve 5 are both electrically connected to the electronic device 6. Among them, an air pressure sensor and an air volume sensor are also provided in the back pressure debugging housing 31, and the air pressure sensor and the air volume sensor are electrically connected to the electronic device 6, so that during the test process, the staff can obtain the measured data of the air pressure sensor and the air volume sensor through the electronic device 6, which is convenient for the staff to understand the air pressure and air volume in the back pressure debugging housing 31. In this embodiment, the electronic device 6 is a computer, which is connected to the back pressure debugging fan 32 and the regulating valve 5 through the computer, so that the computer can control the back pressure debugging fan 32 and the regulating valve 5, thereby effectively adjusting the air volume and air pressure in the debugging channel in real time.

[0041] Based on the above examples, please refer to Figure 1 and Figure 2 The support assembly of the present invention includes a back panel 11 and a support platform 12. The back panel 11 and the support platform 12 are detachably connected. Multiple range hoods 2 are detachably mounted on the back panel 11. The support platform 12 is located at the bottom of the multiple range hoods 2. In this embodiment, the back panel 11 and the support platform 12 are detachably connected by screws. Multiple stoves are mounted on the support platform 12, each located below its corresponding range hood 2. Cooking is performed using the stoves, thereby simulating a more realistic user experience. With the back panel 11 and the support platform 12, during installation, the worker places the support platform 12 and the back panel 11 on the ground. The support platform 12 supports the back panel 11, and the multiple range hoods 2 are mounted on the back panel 11. Thus, the back panel 11 and the support platform 12 support the multiple range hoods 2, thereby better simulating the installation of the range hoods 2 in the kitchen.

[0042] Based on the above examples, please refer to Figure 1 and Figure 3 Each range hood 2 of the present invention includes a range hood body 22 and an air collection assembly 23. The range hood body 22 has an air intake and a smoke outlet. The air collection assembly 23 has a smoke inlet and a smoke outlet, and the smoke inlet is connected to the smoke outlet. Due to the configuration of the range hood body 22 and the air collection assembly 23, during testing, the user activates the range hood body 22 and the air collection assembly 23, generating negative pressure at the smoke inlet, allowing air or oil smoke to enter the range hood body 22 through the smoke inlet. The air or oil smoke in the range hood body 22 then enters the air collection assembly 23 through the smoke inlet. The air or oil smoke in the air collection assembly 23 then enters the smoke exhaust pipe 21 through the smoke outlet, thereby discharging the air or oil smoke into the back pressure debugging assembly 3.

[0043] Based on the above examples, please refer to Figure 1 and Figure 3The range hood 2 of the present invention also includes two baffles 24. Both baffles 24 are located at the bottom of the range hood 2 and are removably mounted on the left and right sides of the range hood 2, respectively. Specifically, the two baffles 24 are removably mounted on the left and right sides of the range hood 2, respectively, by adhesive bonding. The baffles 24 are glass baffles 24, which are not only convenient for users to clean but also easy for staff to install. With the baffles 24, users can install the two baffles 24 on the left and right sides of the range hood 2 during installation. During use, the two baffles 24 block air or fumes, allowing them to better enter the air intake, preventing fumes from the range hood 2 from escaping to other parts of the kitchen.

[0044] Based on the above examples, please refer to Figure 1 and Figure 3 The range hood body 22 of the present invention also includes a main body shell 25 and an oil cup 26. The main body shell 25 is provided with the air intake and smoke outlet, and an oil leakage channel is formed within the main body shell 25. The oil cup 26 is detachably mounted on the main body shell 25 and is located at the bottom of the oil leakage channel. In this embodiment, the oil cup 26 is detachably mounted on the main body shell 25 by snapping. The main body shell 25 is a steel plate shell, and the oil cup 26 is a plastic oil cup 26. The steel plate shell enhances the hardness of the range hood 2 and reduces damage to the range hood 2 caused by bumps. Due to the arrangement of the main body shell 25 and the oil cup 26, during actual use of the range hood 2, oil in the main body shell 25 drips into the oil cup 26 through the oil leakage channel. The user can remove the oil cup 26 to clean the oil in the oil cup 26, thereby preventing oil dripping from the range hood 2 from dripping into the kitchen.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A back pressure test device for a range hood, characterized in that: include: Range hood support assembly (1); A range hood (2), wherein a plurality of the range hoods (2) are provided, each of the range hoods (2) having a smoke exhaust port and a smoke exhaust pipe (21), each of the range hoods (2) being detachably mounted on a range hood support assembly (1), and one end of the smoke exhaust pipe (21) being in communication with the smoke exhaust port; A back pressure debugging component (3), the back pressure debugging component (3) having an air outlet and a plurality of air inlets, each of the air inlets being connected to the other end of the exhaust pipe (21) of each of the range hoods (2); A smoke outlet pipe (4), wherein the connecting end of the smoke outlet pipe (4) is in communication with the air outlet.

2. The back pressure testing device for a range hood according to claim 1, characterized in that: The back pressure debugging assembly (3) comprises a back pressure debugging housing (31) and a back pressure debugging fan (32); a debugging channel is provided in the back pressure debugging housing (31); the debugging channel comprises an air chamber portion (311) and an adjusting portion (312); the air chamber portion (311) is communicated with the adjusting portion (312); the air chamber portion (311) is provided with a plurality of air inlets; the adjusting portion (312) is provided with an air outlet; and the back pressure debugging fan (32) is detachably mounted in the adjusting portion (312).

3. The back pressure testing device for a range hood according to claim 2, characterized in that: The back pressure debugging housing (31) is a transparent back pressure debugging housing (31).

4. The back pressure testing device for a range hood according to claim 2, characterized in that: The back pressure debugging assembly (3) further comprises a partition (33), a partition (33) hole is provided on the partition (33), the partition (33) is detachably mounted in the air chamber portion (311), and a plurality of partition (33) holes are provided.

5. The back pressure testing device for a range hood (2) according to claim 2, characterized in that: A regulating valve (5) for regulating the air volume and air pressure in the smoke outlet pipe (4) is detachably installed in the smoke outlet pipe (4).

6. The back pressure testing device for a range hood according to claim 5, characterized in that: It also includes an electronic device (6), and the back pressure debugging fan (32) and the regulating valve (5) are both electrically connected to the electronic device (6).

7. The back pressure testing device for a range hood according to claim 1, characterized in that: The range hood support assembly (1) comprises a back plate (11) and a support platform (12); the back plate (11) and the support platform (12) are detachably connected; a plurality of the range hoods (2) can be detachably mounted on the back plate (11); and the support platform (12) is located at the bottom of the plurality of the range hoods (2).

8. The back pressure testing device for a range hood according to claim 1, characterized in that: Each of the range hoods (2) comprises a range hood body (22) and an air collection assembly (23), wherein the range hood body (22) has an air intake port and a smoke outlet, and the air collection assembly (23) has a smoke inlet and the smoke outlet, wherein the smoke inlet is connected to the smoke outlet.

9. The back pressure testing device for a range hood according to claim 8, characterized in that: The range hood (2) further comprises a baffle (24), wherein two baffles (24) are provided, both of which are located at the bottom of the range hood (2), and the two baffles (24) are detachably mounted on the left and right sides of the range hood (2), respectively.

10. The back pressure testing device for a range hood according to claim 8, characterized in that: The range hood body (22) further comprises a main body shell (25) and an oil cup (26); the main body shell (25) is provided with the air inlet and the smoke outlet; an oil leakage channel is provided in the main body shell (25); the oil cup (26) is detachably mounted on the main body shell (25) and is located at the bottom of the oil leakage channel.

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