Method for measuring pressure difference of dust collector

Abstract

The invention relates to the field of differential pressure measurement methods, in particular to a differential pressure measurement connection method of a dust collector, which comprises a differential pressure gauge, a hose, a funnel, a soft material and a to-be-measured differential pressure dust collector. According to the method, a special connection method combining a funnel and a soft material is adopted, and the problems that at present, due to the fact that connectors of an air inlet of a dust collector are diversified, the measurement connecting positions are difficult to be matched, air leakage is easily caused, and the measurement result is inaccurate are solved, and when the dust collector and the funnel are attached to the soft material in a pressing mode. Air leakage at the joint is greatly reduced, the pressure difference measurement result of the dust collector is more accurate, and the whole measurement process can be completed by one person.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of differential pressure measurement of vacuum cleaner, in particular to a differential pressure measurement method of vacuum cleaner BACKGROUND

[0002] Differential pressure is the difference between the pressure of two objects.

[0003] The existing differential pressure measurement method often has air leakage due to poor sealing at the connection, resulting in inaccurate measured differential pressure value.

[0004] The inventor found the following technical problems when implementing the technical solution of the present application:

[0005] Because there are many types of interfaces of vacuum cleaners, there is no dedicated connection port to connect, so air leakage often occurs due to the mismatch of the interface, resulting in inaccurate measurement data. SUMMARY

[0006] (I) Technical problems solved

[0007] The present application provides a differential pressure measurement method of vacuum cleaner, which can solve the problem of inaccurate measurement data due to the mismatch of the interface of the vacuum cleaner.

[0008] (II) Technical solutions

[0009] In order to solve the above technical problems, the present application provides the following technical solutions:

[0010] A differential pressure measurement method of vacuum cleaner, comprising:

[0011] A vacuum cleaner, which is pressed against a soft material.

[0012] A funnel, the inner side of which is attached to the soft material, and the narrow end of which is connected to a hose.

[0013] A soft material, which is attached to the inner side of the funnel and has an open hole at the attachment site, so that the airflow is communicated with the hose of the differential pressure gauge.

[0014] In a further embodiment, the top diameter of the funnel is greater than or equal to the widest part of the air inlet surface of the vacuum cleaner.

[0015] In a further embodiment, the widest part of the through hole is smaller than the narrowest part of the air inlet surface of the vacuum cleaner and the attached surface of the soft material.

[0016] In a further embodiment, the differential pressure measurement method is to press the differential pressure to be measured against the soft material in the funnel, connect the funnel to the hose, and then connect the hose to the differential pressure gauge to form a complete differential pressure test connection.

[0017] (III) Advantages

[0018] Compared with the prior art, the dust collector pressure difference measurement method provided by the application has the following advantages:

[0019] The dust collector pressure difference measurement method can be applied to different types of dust collector interfaces, can play a good sealing role, and can make the pressure difference measurement data more accurate.

[0020] The dust collector pressure difference measurement method can also be completed by a single person. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective view of the dust collector pressure difference measurement method in embodiment 1.

[0022] Figure 2 is a schematic view of the funnel and the soft material in embodiment 2.

[0023] Figure 3 is an implementation diagram of the dust collector pressure difference measurement method in embodiment 3.

[0024] Reference signs: pressure difference meter 1, pressure difference meter air inlet 2, hose 3, funnel 4, soft material 5, dust collector air inlet or air outlet 6, dust collector 7 DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the application will be clearly and completely illustrated and described below with reference to the drawings in the embodiments of the application.

[0026] Embodiment 1: refer to Figure 1 as shown, Figure 1 is a perspective view of the dust collector pressure difference measurement method in embodiment 1.

[0027] A dust collector pressure difference measurement method comprises a dust collector, a soft material, a funnel, a hose, and a pressure difference meter.

[0028] The connecting port of the pressure difference meter 1 is connected to the narrow end of the funnel 4 through the hose 3.

[0029] The soft material 5 is attached to the inner side of the funnel 4.

[0030] The air outlet or air inlet 6 of the dust collector 7 is connected to the soft material by pressing.

[0031] Embodiment 2: refer to Figure 2 as shown, Figure 2 is a schematic view of the funnel and the soft material in embodiment 2.

[0032] On the basis of embodiment 1, the soft material 5 in this embodiment is attached to the funnel 4.

[0033] The soft material 5 of the embodiment is in communication with the funnel 4.

[0034] The soft material 5 of the embodiment is elastic and needs to be replaced in time when aging or damaged.

[0035] Embodiment 3: refer to Figure 3 as shown, Figure 3 is an embodiment diagram of the differential pressure measurement method of the vacuum cleaner in embodiment 3.

[0036] After opening the differential pressure meter 1 and preheating the machine, only one hand holds the funnel, the other hand holds the vacuum cleaner 7, presses the air inlet 6 on the soft material 5, and then opens the switch of the vacuum cleaner, that is, the vacuum cleaner differential pressure test state.

[0037] The differential pressure measurement method of the vacuum cleaner of the embodiment realizes single-person operation of differential pressure measurement.

[0038] The differential pressure measurement method of the vacuum cleaner of the embodiment has simple structure and solves the problem that the differential pressure measurement is not accurate due to the difficulty in matching the interfaces caused by the diversity of the interfaces of the vacuum cleaner, and the measurement can be completed by one person.

[0039] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and deformations can be made to these embodiments without departing from the understanding and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A differential pressure measurement method for a vacuum cleaner, characterized by, This method uses a special connection method, which is to connect the vacuum cleaner and the pressure difference test tool by combining a funnel and a soft material. When the vacuum cleaner and the funnel are fitted with the soft material by pressing, the occurrence of air leakage at the connection is greatly reduced, making the pressure difference test results more accurate.

2. The method of claim 1, wherein, The inner side of the funnel and the suction surface of the vacuum cleaner need to fit the soft material.

3. The method of claim 2, wherein, The inner side of the funnel and the suction surface of the vacuum cleaner are fitted to the soft material by pressing the vacuum cleaner on the soft material.

4. The method of claim 2, wherein, The method further includes opening a hole at the joint portion between the soft material and the suction surface of the vacuum cleaner to allow the air flow to communicate with the hose of the pressure difference measuring tool.

5. The method of claim 3, wherein, The diameter including the top of the funnel should be greater than or equal to the widest part of the suction surface of the vacuum cleaner.

6. The method of claim 4, wherein, The widest part of the through hole needs to be smaller than the narrowest part of the suction surface of the vacuum cleaner and the contact surface of the soft material.

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