Variable connection structure of filter connection port

Abstract

A variable connecting structure of a filter connecting port comprises a filter shell, the end of the filter shell is provided with an air inlet and outlet and a circle of threaded holes surrounding the air inlet and outlet, the end of the filter shell is provided with a fast-assembly connector, and the fast-assembly connector is fixed to the end of the filter shell through cooperation of screws and the threaded holes; and a quick coupler chuck is arranged at the top of the quick connector. According to the variable connection structure of the filter connection port, the filter can be rapidly installed or replaced according to ventilation pipelines with different connector forms and sizes, and the design cost, the production cost and the use cost are saved.

Description

Technical Field

[0001] The utility model relates to the field of air filtration equipment, and specifically to a variable connection structure for the connection port of a filter. Background Art

[0002] A filter is a device that effectively filters pollutants such as poisonous smoke, poisonous fog, dust, and bioaerosols in the air. It is used to create a contamination-free safe working space to ensure the safety of personnel inside the space and is the core equipment of an air purification device.

[0003] Filters need to be connected to ventilation ducts with different calibers or forms under different working conditions. The traditional inlet and outlet of the filter are the filter interfaces, and their structures cannot be changed. Therefore, they cannot meet the forms and specifications of the interfaces in various devices. As a result, the filter needs to be redesigned and produced as a whole, resulting in an increase in the costs of design, production, and use. To address the above problems, there is an urgent need to design a filter with a variable interface. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a variable connection structure for the connection port of a filter, which can achieve the rapid installation or replacement of the filter for ventilation ducts with different interface forms and size specifications, and save the costs of design, production, and use.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a variable connection structure for the connection port of a filter, including a filter housing. An air inlet / outlet and a circle of threaded holes are provided at the end of the filter housing. A quick-installation interface is provided at the end of the filter housing, and the quick-installation interface is fixed to the end of the filter housing through screws in cooperation with the threaded holes.

[0006] A quick-installation joint chuck is provided at the top of the quick-installation interface.

[0007] In a preferred solution, a reducing hole with a diameter gradually decreasing from bottom to top is provided in the middle of the quick-installation interface, and a filter end interface flange is provided at the bottom. An interface flange ventilation hole with the same diameter as the narrow end of the reducing hole is provided in the middle of the filter end interface flange at the bottom of the quick-installation interface, and a circle of interface flange fixing holes is provided around the interface flange ventilation hole.

[0008] The screw passes through the threaded hole and the interface flange fixing hole.

[0009] In a preferred solution, a sealing ring is provided between the filter end interface flange and the end of the filter housing.

[0010] In a preferred solution, in the quick-installation interface, a reinforcing rib is provided between the quick-installation joint chuck and the filter end interface flange.

[0011] In a preferred embodiment, the replacement quick-connect fitting chuck at the top of the quick-connect interface is a pipe end interface flange, forming a flange-type interface.

[0012] In a preferred embodiment, the quick-connect interface is fixedly connected between the pipe end and the chuck through a clamp.

[0013] In a preferred embodiment, the quick-connect interface is fixedly connected between the pipe end and the flange through bolts.

[0014] The variable connection structure of the filter connection port provided by the present utility model has the following beneficial effects by adopting the above structure:

[0015] (1) By providing a quick-connect interface, the present invention can quickly adapt to ventilation pipes of different calibers or forms, without the need to re-design and produce the filter as a whole, greatly improving the applicability of the filter in different working conditions;

[0016] (2) The quick-connect interface allows users to select different connection methods (such as flange-type interface or clamp connection) according to needs, so as to meet the requirements of the form and specification size of the interface in various devices;

[0017] (3) Users can easily replace the quick-connect fitting chuck or the flange-type interface according to actual needs, making the maintenance and replacement of the interface structure easier;

[0018] (4) Due to the variable design of the interface, there is no need to re-design and produce filters for pipes of different specification sizes, thus reducing the design and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described below with reference to the drawings and embodiments:

[0020] Figure 1 It is a schematic structural diagram of the present utility model with a chuck-type quick-connect interface.

[0021] Figure 2 It is a schematic structural diagram of the present utility model with a flange-type quick-connect interface.

[0022] Figure 3 For the present utility model Figure 1 of the cross-sectional structural diagram.

[0023] Figure 4 For the present utility model Figure 2 of the cross-sectional structural diagram.

[0024] Figure 5 For the present utility model Figure 3 of the detailed structure diagram at A.

[0025] Figure 6 For the present utility model Figure 4 Schematic diagram of the detailed structure at position B in the present utility model

[0026] Figure 7 Schematic diagram of the structure when the present utility model adopts a chuck - type quick - installation interface and is in a connected state with a ventilation duct

[0027] Figure 8 Schematic diagram of the structure when the present utility model adopts a flange - type quick - installation interface and is in a connected state with a ventilation duct

[0028] In the figure: filter housing 1, air inlet and outlet 101, threaded hole 102, quick - installation interface 2, quick - installation joint chuck 21, reducing hole 22, filter end interface flange 23, interface flange ventilation hole 231, interface flange fixing hole 232, reinforcing rib 24, flange - type interface 3, pipe end interface flange 31, sealing ring 4, screw 5 Specific implementation method

[0029] Embodiment 1:

[0030] As shown in Figure 1 , 3 , 5, 7, a variable connection structure for a filter connection port, including a filter housing 1, an air inlet and outlet 101 is provided at the end of the filter housing 1, and a circle of threaded holes 102 is arranged around the air inlet and outlet 101. A quick - installation interface 2 is provided on the end of the filter housing 1, and the quick - installation interface 2 is fixed to the end of the filter housing 1 through a screw 5 in cooperation with the threaded hole 102

[0031] The top of the quick - installation interface 2 is provided with a quick - installation joint chuck 21

[0032] In a preferred solution, a reducing hole 22 with a diameter gradually decreasing from bottom to top is provided in the middle of the quick - installation interface 2, and a filter end interface flange 23 is provided at the bottom. An interface flange ventilation hole 231 with the same diameter as the narrow end of the reducing hole 22 is provided in the middle of the filter end interface flange 23 at the bottom of the quick - installation interface 2, and a circle of interface flange fixing holes 232 is arranged around the interface flange ventilation hole 231

[0033] The screw 5 is arranged through the threaded hole 102 and the interface flange fixing hole 232

[0034] In a preferred solution, a sealing ring 4 is provided between the filter end interface flange 23 and the end of the filter housing 1

[0035] In a preferred solution, in the quick - installation interface 2, a reinforcing rib 24 is provided between the quick - installation joint chuck 21 and the filter end interface flange 23

[0036] In a preferred solution, the quick-connect interface 2 is fixedly connected to the chuck at the end of the pipeline through a clamp.

[0037] Embodiment 2:

[0038] As Figure 2 、 4 、6, 8, the replacement quick-connect chuck 21 at the top of the quick-connect interface 2 is the pipeline end interface flange 31, forming a flange interface 3, and the rest of the structure is the same as that in Embodiment 1.

[0039] In a preferred solution, the quick-connect interface 2 is fixedly connected to the flange at the end of the pipeline through bolts.

[0040] In the above Embodiment 1 and Embodiment 2, during installation:

[0041] Place the quick-connect interface 2 at the end of the filter housing 1, and ensure that the interface flange fixing holes 232 on the filter end interface flange 23 are aligned with the threaded holes 102 on the filter housing 1.

[0042] Pass the screw 5 through the interface flange fixing holes 232 and tighten it in the threaded holes 102 to fix the quick-connect interface 2 on the filter housing 1.

[0043] Install a reinforcing rib 24 between the quick-connect chuck 21 and the filter end interface flange 23 to increase the structural stability.

[0044] If a flange interface 3 is required, replace the quick-connect chuck 21 with the pipeline end interface flange 31, and fixedly connect it to the flange at the end of the pipeline through bolts.

[0045] During use, when the filter needs to be docked with ventilation pipelines of different calibers or forms, the user can select a suitable quick-connect chuck 21 or pipeline end interface flange 31 for connection according to the needs.

[0046] The sealing ring 4 ensures the airtightness of the connection and prevents the leakage of pollutants.

[0047] The design of the reinforcing rib 24 increases the structural strength of the interface part and avoids the damage of the interface caused by long-term use or external impact.

Claims

1. A variable connection structure of a filter connection port, comprising a filter housing (1), characterized in that: The end of the filter housing (1) is provided with an air inlet and outlet (101) and a circle of threaded holes (102) arranged around the air inlet and outlet (101); the end of the filter housing (1) is provided with a quick-install interface (2); the quick-install interface (2) is fixed to the end of the filter housing (1) by screws (5) and the threaded holes (102); A quick-install connector chuck (21) is provided on the top of the quick-install interface (2).

2. A variable connection structure of a filter connection port according to claim 1, characterized in that: The quick-install interface (2) has a variable diameter hole (22) whose diameter gradually decreases from bottom to top in the middle, and a filter end interface flange (23) is provided at the bottom. The filter end interface flange (23) at the bottom of the quick-install interface (2) has an interface flange ventilation hole (231) with the same diameter as the narrow end of the variable diameter hole (22) in the middle, and a circle of interface flange fixing holes (232) are provided around the interface flange ventilation hole (231); The screw (5) is arranged through the threaded hole (102) and the interface flange fixing hole (232).

3. A variable connection structure of a filter connection port according to claim 2, characterized in that: A sealing ring (4) is provided between the filter end interface flange (23) and the end of the filter housing (1).

4. A variable connection structure of a filter connection port according to claim 2, characterized in that: In the quick-install interface (2), a reinforcing rib (24) is provided between the quick-install connector chuck (21) and the filter end interface flange (23).

5. The variable connection structure of the filter connection port according to claim 1, characterized in that: The replacement quick-install connector chuck (21) at the top of the quick-install interface (2) is a pipe end interface flange (31), forming a flange-type interface (3).

6. The variable connection structure of the filter connection port according to claim 1, characterized in that: The quick-install interface (2) is connected and fixed via a clamp to a clamp at the end of the pipe.

7. A variable connection structure of a filter connection port according to claim 5, characterized in that: The quick-install interface (2) is connected and fixed to the flange at the end of the pipeline by means of bolts.

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