A spider-shaped eccentric support

Abstract

A spider web-shaped eccentric support is installed in a filter of a self-suction filter mask, and is provided with a connecting port, wherein a connecting buckle is arranged at an inner circumferential opening of the connecting port, and a tripod support frame is arranged at an inner side of the connecting buckle; N radial structures are arranged outwardly and divergently with the connecting port as a center, the radial structures are in a wavy or sheet shape in an up-down zigzag manner, and the radial structures are connected through annular structures; the radial structures, the annular structures and the tripod support frame form an integral filter sheet support structure, and the connecting port is arranged at an eccentric position of the integral filter sheet support structure. Through the above structure, the spider web-shaped eccentric support has good filtering effect and high wearing comfort.

Description

Technical Field

[0001] This utility model relates to the field of self-priming filter masks, specifically a support used inside the filter element of a self-priming filter particulate respirator. Background Technology

[0002] Self-priming filter-type particulate respirators are equipped with a filter element, which generally includes a support frame and a filter structure. The support frame holds the filter cotton of the self-priming filter-type particulate respirator. Existing supports are generally composed of a thin sheet structure with airflow holes of a certain width. However, in this case, if the sheet is too thin, it lacks support; if the sheet is too thick, it will block too much filter cotton, reducing the air intake area, decreasing air intake efficiency, and increasing the weight of the support frame and the wearing pressure. Furthermore, the connection ports of existing supports are all located in the center of the support frame. With this structure, the upper part of the filter element can easily obstruct the wearer's vision during use. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a spiderweb-shaped eccentric support.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a spider web-shaped eccentric bracket is installed in the filter element of a self-priming filter mask, and has a connection port. A connecting buckle is provided at the inner circumferential opening of the connection port, and a three-legged support frame is provided inside the connecting buckle. N radial structures are arranged outward from the connection port as the center. The radial structures are long, wavy, or short, sheet-like structures. The radial structures are connected to each other by a ring structure. The radial structures and the ring structure form an integral filter support structure, and the connection port is located at an eccentric position in the integral filter support structure.

[0005] Preferably, the radial structure is a thin sheet structure, with longer radial structures having multiple bends and shorter radial structures being circular sheets. The radial structure is a polypropylene support structure with a thickness between 1.3mm and 1.9mm. The width of the connection between the radial structure and the connector naturally narrows, forming a smooth, rounded corner connection structure. Compared to the traditional straight thin sheet structure, the radial structure increases the air intake area, reduces intake resistance, and improves intake efficiency.

[0006] The ring structure is connected to the high or low part of the radial structure to improve the mechanical strength of the support and prevent the overall structure from deforming.

[0007] The outer circumference of the connection port is provided with double-layer protrusions, which are two annular protrusions located at the edge of the connection port. There are three connecting buckles, and adjacent connecting buckles form a groove structure. The three connecting buckles are respectively connected to the tripod support frame. When the filter element is tightened and installed on the respirator valve seat of the filter mask, the double-layer protrusions and the respirator valve seat clamp the silicone of the mask body.

[0008] The overall filter support structure can be teardrop-shaped or circular, and can be selected according to the actual use.

[0009] Beneficial effects

[0010] This invention provides a corrugated structure in the support section, which increases the filtration area and improves air intake efficiency, ensuring the support provides sufficient support. The thin corrugated structure not only provides adequate support but also reduces weight, preventing excessive strain during prolonged wear. The eccentric mounting position allows for adjustment of the eccentric support's fixation according to actual field of vision needs, minimizing obstruction and improving user comfort. The double-layered raised structure at the connection port provides better sealing, reducing respirator leakage. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 A schematic diagram of a teardrop-shaped spiderweb-shaped eccentric support structure; In the diagram: 1. Connection port; 2. Connection buckle; 3. Tripod support frame; 4. Radial structure; 5. Ring structure; 6. Double-layer protrusion. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] like Figure 1The diagram shows a spiderweb-shaped eccentric support, installed in the filter element of a self-priming filter mask. It has a connection port 1, with connecting buckles 2 at the inner circumferential opening of the connection port 1. A three-legged support frame 3 is located inside the connecting buckles 2. The respirator body is made of silicone. The valve seat's connection point passes through the silicone and connects to the support's connection port 1, clamping the silicone. The clamped silicone acts as a seal, preventing unfiltered air from directly entering the respirator. The connection port 1 is a hollow structure, and there are three connecting buckles 2. Adjacent connecting buckles 2 form a groove structure, and the three connecting buckles 2 connect to the three legs of the three-legged support frame 3. The three protrusions at the respirator valve seat connection align with the three gaps in the groove structure formed by the connecting buckles 2 and are tightened. When tightened, the three protrusions at the respirator valve seat connection pass over the protrusions of the connecting buckles and fall between the buckle protrusions and the legs of the three-legged support frame, remaining stationary. This design allows the user to confirm the respirator's connection status when the support is tightened.

[0014] In practice, the respirator valve seat has three protrusions of different sizes to control the distance between the various clips, thus controlling the installation angle of the filter element. When the distance between all the connecting clips 2 of the filter element is greater than the largest protrusion, the filter element has three installation angles. When the distance between the clips of the filter element is consistent with the valve seat protrusion, the filter element has only one installation angle. Adjustments can be made according to specific needs during use.

[0015] N radial structures 4 radiate outwards from the connection port 1. Each radial structure 4 is either wavy or sheet-like with vertical undulations. The radial structures 4 are connected by annular structures 5. Preferably, the radial structures 4 are thin sheet structures. Longer radial structures are wavy with multiple bends. When the radial structures are shorter, a sheet structure can be used directly. The radial structures 4 are polypropylene support structures with a thickness ≤1.9mm. The width of the connection between the radial structures 4 and the connection port 1 naturally narrows, forming a smooth, rounded corner connection structure, increasing strength. The width and number of radial structures 4 vary depending on the shape and size of the support structure to maintain its stability. The annular structures 5 connect to the higher or lower parts of the radial structures 4, improving the mechanical strength of the support structure and preventing overall structural deformation. The wavy and circular sheet structures only contact the filter cotton at their higher and lower points, increasing the air intake area, reducing intake resistance, and improving intake efficiency compared to the traditional straight sheet structure. The respirator must be put on before entering the workplace and can only be removed after leaving the workplace. Therefore, each time the respirator is used, the wearer must wear it for several hours or more. Compared to the traditional structure, the thin, wave-like structure reduces the weight of the support. For a wearing time of several hours, even a slight reduction in weight can significantly reduce the wearing pressure.

[0016] The outer circumference of the connection port 1 is provided with double-layer protrusions 6, which are two annular protrusions located at the edge of the connection port 1. When the filter element is tightened and installed on the respirator valve seat of the filter mask, the double-layer protrusions 6, together with the respirator valve seat, clamp the silicone of the mask body. The respirator body is made of silicone, and the connection of the valve seat passes through the silicone and connects to the connection port 1 of the bracket, clamping the silicone together with the double-layer protrusions. The clamped silicone acts as a seal, ensuring that air cannot directly enter the respirator without filtration. Generally, the bracket has a single-layer protrusion and a single layer of protection, while a spiderweb-shaped eccentric bracket design with double-layer protrusions and double-layer compression of silicone disperses stress, achieving double the protection effect.

[0017] The radial structure 4, the annular structure 5, and the tripod support frame form an integral filter support structure, and the connection port 1 is located at an eccentric position in the integral filter support structure.

[0018] The overall filter support structure can be designed to be circular or teardrop-shaped, depending on the overall shape of the filter element. A circular filter offers a narrower field of view than a teardrop-shaped one, while the teardrop-shaped filter element has less freedom of movement at its head compared to a circular one. Different filter elements can be selected based on the varying field of view and head freedom required for different application scenarios.

Claims

1. A spiderweb-shaped eccentric bracket, installed in the filter element of a self-priming filter mask, characterized in that: A connection port (1) is provided, and a connecting buckle (2) is provided at the inner circumferential opening of the connection port (1). A three-legged support frame (3) is provided on the inner side of the connecting buckle (2). N radial structures (4) are arranged outward from the outer circumference of the connection port (1). The radial structures (4) are long, wavy, or short sheet-like structures. The radial structures (4) are connected to each other by a ring structure (5). The radial structures (4) and the ring structure (5) form an integral filter support structure. The connection port (1) is located at the eccentric position of the integral filter support structure.

2. The spiderweb-shaped eccentric support according to claim 1, characterized in that: The radial structure (4) is a thin sheet structure.

3. The spiderweb-shaped eccentric support according to claim 1, characterized in that: The bracket is made of polypropylene with a thickness of 1.3-1.9mm. The connection between the radial structure (4) and the connection port (1) naturally narrows and is smoothly connected to the connection port to form a rounded corner connection structure.

4. A spiderweb-shaped eccentric support according to claim 1, characterized in that: The ring structure (5) is connected to the radial structure (4) at a high or low point.

5. A spiderweb-shaped eccentric support according to claim 1, characterized in that: There are three connecting buckles (2), and a groove structure is formed between adjacent connecting buckles (2). The three connecting buckles (2) are respectively connected to the tripod support frame (3).

6. A spiderweb-shaped eccentric support according to claim 1, characterized in that: The outer circumference of the connection port (1) is provided with double-layer protrusions (6).

7. A spiderweb-shaped eccentric support according to claim 6, characterized in that: The double-layer protrusion (6) is two annular protrusions set at the edge of the connection port (1).

8. A spiderweb-shaped eccentric support according to claim 1, characterized in that: The overall filter support structure is teardrop-shaped or circular.

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