Sanitary respirator

Abstract

A sanitary respirator relates to the field of filtering devices and comprises a lower shell, a filter element mounting seat, a filter element and an upper shell, the lower end of the lower shell is of a sealed structure, the upper end of the lower shell is of an open structure, the lower end of the lower shell is communicated with the upper end of a storage tank through a pipeline, the filter element mounting seat is mounted in the lower shell, and the filter element mounting seat is mounted in the upper shell. A breathing hole is formed in the filter element installation seat, the filter element is of a cylindrical structure, the upper shell is located on the lower shell, the upper end of the upper shell is sealed, the lower end of the upper shell is open, the filter element is installed on the filter element installation seat, the center of the filter element is communicated with the breathing hole, and the upper end of the filter element abuts against the upper shell. The utility model solves the problems of small filtering surface and poor protection effect of the insect-proof net of the existing respirator. The water purifier is better in filtering effect and more convenient to disassemble and clean, has a rainproof function, and can be installed and used outdoors.

Description

Technical Field

[0001] The utility model belongs to the field of filtering devices, and particularly relates to a sanitary respirator. Background Art

[0002] At present, for food and drug atmospheric storage tank equipment, when involving feeding, discharging, and CIP cleaning, a large amount of air needs to be inhaled or discharged into or from the tank to prevent the positive and negative pressures inside the tank from damaging the tank body. This makes the inside of the storage tank in contact with the external air environment and is easily polluted by the external air environment. Currently, the atmospheric storage tank respirator usually welds a support frame on the top of the breathing pipe, and an insect-proof net is surrounded by the support frame. The filtering surface of the insect-proof net is small, and the protection effect is not good, which is not suitable for the breathing of material storage tanks with high hygiene requirements such as food and drugs. Content of the Utility Model

[0003] In order to improve the protection effect of the insect-proof net, the utility model provides a detachable sanitary respirator with good protection effect.

[0004] The technical solution provided by the utility model is: a sanitary respirator, including a lower shell, a filter element mounting seat, a filter element, and an upper shell. The lower end of the lower shell is a sealed structure, and the upper end of the lower shell is an open structure. The lower end of the lower shell is connected to the upper end of the storage tank through a pipeline. The filter element mounting seat is installed inside the lower shell, and the filter element mounting seat is provided with breathing holes. The filter element is a cylindrical structure. The upper shell is located above the lower shell. The upper end of the upper shell is sealed and the lower end is open. The filter element is installed above the filter element mounting seat and the center of the filter element is communicated with the breathing holes. The upper end of the filter element abuts against the upper shell.

[0005] A further technical solution is: the outer diameter of the upper shell is larger than the outer diameter of the lower shell, and there is a gap between the upper shell and the lower shell. A sieve plate is arranged in the gap, and the sieve plate is fixedly connected to one of the upper shell or the lower shell.

[0006] A further technical solution is: an elastic sealing layer is arranged between the upper shell and the filter element, and the upper end of the filter element is sealed and blocked through the elastic sealing layer.

[0007] A further technical solution is: a screw rod is arranged in the center of the filter mounting seat. The upper end of the screw rod passes through the upper shell and is connected with a nut. The upper shell and the filter element mounting seat are tightly connected by pre-tightening the nut.

[0008] A further technical solution is: a support ring is fixedly arranged inside the lower shell, and the filter element mounting seat is placed on the support ring.

[0009] A further technical solution is: a locking device is arranged between the upper shell and the lower shell, and under the action of the locking device, the upper shell and the lower shell are kept in a locked state.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. This application is provided with two filtering structures. Among them, the sieve plate plays a role of preliminary protection, filtering out mosquitoes and large-particle dust, while the filter element plays a role of fine filtering, minimizing the entry of small-particle impurities, dust and bacteria into the storage tank, and is suitable for use in storage tanks for materials with high hygiene requirements such as food and medicine.

[0012] 2. This application can be disassembled for cleaning, and the hygiene is more guaranteed.

[0013] 3. Multiple filter elements of this application work simultaneously, and the filtering area is large.

[0014] 4. The upper shell of this application has a rain-proof function, so this application can be installed outdoors for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the utility model.

[0016] Figure 2 is a top view of the filter element mounting seat in the utility model.

[0017] Figure 3 is Figure 2 a sectional view taken along the line A-A in

[0018] In the figure: 1, clamp union; 2, lower shell; 3, sieve plate; 4, locking device; 5, upper shell; 6, filter element; 7, breathing hole; 8, nut; 9, screw; 10, elastic sealing layer; 11, support ring; 12, sealing ring; 13, filter element mounting seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the following further details the utility model with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0020] Refer to Figures 1-3 , a sanitary respirator disclosed by the utility model, the structure of which includes a lower shell 2, a filter element mounting seat 13, a filter element 6 and an upper shell 5.

[0021] The lower end of the lower shell 2 is a sealed structure, and the upper end of the lower shell 2 is an open structure. The lower end of the lower shell 2 is communicated with the upper end of the storage tank through a pipeline. In order to facilitate the disassembly of this application from the storage tank, a clamp union 1 is installed at the end of the pipeline, and it is connected to the storage tank through the detachable clamp union 1. After disassembling this application from the storage tank, it is more convenient to clean.

[0022] The filter element mounting seat 13 is installed in the lower housing 2. Specifically, a support ring 11 is provided in the lower housing 2, and a sealing ring 12 is provided above the support ring 11. The filter element mounting seat 13 is placed on the sealing ring 12, so that the periphery of the filter element mounting seat 13 is in sealed cooperation with the lower housing 2. The filter element mounting seat 13 is provided with a breathing hole 7 to ensure that air can only enter and exit through the breathing hole 7.

[0023] The filter element 6 is of a cylindrical structure. The upper housing 5 is located above the lower housing 2. The upper end of the upper housing 5 is sealed and the lower end is open. The filter element 6 is installed on the filter element mounting seat 13 and the center of the filter element 6 is communicated with the breathing hole 7. The upper end of the filter element 6 abuts against the upper housing 5. The outer diameter of the upper housing 5 is larger than that of the lower housing 2, and there is a gap between the upper housing 5 and the lower housing 2. A sieve plate 3 is provided in the gap, and the sieve plate 3 is fixedly connected to one of the upper housing 5 or the lower housing 2. In this application, the sieve plate 3 plays a role of preliminary protection, filtering out mosquitoes and large-particle dust, while the filter element 6 plays a role of fine filtering, minimizing the entry of small-particle impurities, dust and bacteria into the storage tank, and is suitable for use in material storage tanks with high hygiene requirements such as food and medicine.

[0024] An elastic sealing layer 10 is provided between the upper housing 5 and the filter element 6 to seal and block the upper end of the filter element 6 through the elastic sealing layer 10.

[0025] A screw rod 9 is provided in the center of the filter mounting seat. The upper end of the screw rod 9 passes through the upper housing 5 and is connected with a nut 8. The upper housing 5 and the filter element mounting seat 13 are fixedly connected by pre-tightening the nut 8.

[0026] A locking device 4 is provided between the upper housing 5 and the lower housing 2, and under the action of the locking device 4, the upper housing 5 and the lower housing 2 are kept in a locked state.

[0027] In summary, first of all, this application has two-stage filtering structures, and both the filtering area and the filtering effect are significantly improved. Moreover, the filtering components of the present utility model are detachably connected, which is more convenient for cleaning and more suitable for use in material storage tanks with high hygiene requirements such as food and medicine. In addition, this application has the characteristic of rain protection and can be used outdoors.

Claims

1. A hygienic respirator, characterized in that: It includes a lower housing (2), a filter element mounting seat (13), a filter element (6) and an upper housing (5). The lower end of the lower housing (2) is a sealed structure, and the upper end of the lower housing (2) is an open structure. The lower end of the lower housing (2) is connected to the upper end of the storage tank through a pipeline. The filter element mounting seat (13) is installed inside the lower housing (2), and the filter element mounting seat (13) is provided with a breathing hole (7). The filter element (6) is a cylindrical structure. The upper housing (5) is located above the lower housing (2). The upper end of the upper housing (5) is sealed and the lower end is open. The filter element (6) is installed above the filter element mounting seat (13) and the center of the filter element (6) is communicated with the breathing hole (7). The upper end of the filter element (6) abuts against the upper housing (5).

2. The hygienic respirator according to claim 1, wherein: The outer diameter of the upper housing (5) is larger than that of the lower housing (2). There is a gap between the upper housing (5) and the lower housing (2). A sieve plate (3) is arranged in the gap, and the sieve plate (3) is fixedly connected to one of the upper housing (5) or the lower housing (2).

3. The hygienic respirator according to claim 1, characterized in that: An elastic sealing layer (10) is arranged between the upper housing (5) and the filter element (6), and the upper end of the filter element (6) is sealed through the elastic sealing layer (10).

4. A sanitary respirator according to claim 1, characterized in that: A screw rod (9) is arranged in the center of the filter mounting seat. The upper end of the screw rod (9) passes through the upper housing (5) and is connected with a nut (8). The upper housing (5) and the filter element mounting seat (13) are tightly connected by pre-tightening the nut (8).

5. A hygienic respirator according to claim 1, characterized in that: A support ring (11) is fixedly arranged inside the lower housing (2), and the filter element mounting seat (13) is placed on the support ring (11).

6. The hygienic respirator according to claim 1, characterized in that: A locking device (4) is arranged between the upper housing (5) and the lower housing (2). Under the action of the locking device (4), the upper housing (5) and the lower housing (2) are kept in a locked state.

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