Clamp for testing particulate matter emission of breathing mask

Abstract

The utility model discloses a fixture for testing particulate matter emission of a breathing mask, which comprises a box body, a first opening and a second opening are respectively arranged on two opposite sides of the box body, and a second clamping plate and a fourth clamping plate are respectively arranged at the bottoms of the first opening and the second opening. The top of the first opening and the top of the second opening are respectively provided with a first clamping plate and a third clamping plate in an up-down movable mode. One side of the box body is further provided with a mask connector clamped with the first clamping opening. The clamp has the beneficial effects that the clamp is provided with the adjustable first bayonet and the adjustable second bayonet on two sides, meets the test requirements of particle counter test heads with different diameters and masks with different sizes, and is provided with the open hole for connecting clean gas to ensure that the inside of the clamp is not polluted; the clamp fixes the counter end and the mask end, so that the operation is more standard and convenient, and the test accuracy is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of breathing mask detection, and in particular relates to a clamp for testing particle emission of a breathing mask. Background Art

[0002] In order to reduce the risk of excessive particulate matter generated in the gas passages of medical devices for patients connected to medical devices, which in turn affects the health of the respiratory system, it is necessary to test the emission of particulate matter in the gas passages of medical devices, their components or accessories that provide respiratory care to patients or provide substances to patients through the respiratory tract in all environments. The purpose is to evaluate the potential pollution generated by the medical devices themselves, which may come from particles generated during the manufacturing process or during use.

[0003] The equipment, components or parts of the gas channel are all subject to particle emission testing. Among the components of the gas channel equipment used in clinical practice, the respiratory mask (see below) Figure 3 ) is one of the common accessories. Currently, there is no suitable fixture for particle emission testing. Therefore, we provide a fixture for respiratory mask particle emission testing, which can be more convenient and reduce pollution to conduct the test. Utility Model Content

[0004] The utility model aims to provide a clamp for testing the particle emission of a breathing mask.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fixture for testing particle emission of a respiratory mask comprises a box body, wherein a first opening and a second opening are respectively arranged on opposite sides of the box body, a second clamping plate and a fourth clamping plate are respectively arranged at the bottom of the first opening and the second opening, and a first clamping plate and a third clamping plate are respectively arranged at the top of the first opening and the second opening so as to be movably arranged up and down; the positions of the first clamping plate and the second clamping plate correspond to each other up and down, the positions of the third clamping plate and the fourth clamping plate correspond to each other up and down, and semicircular bayonet ports are respectively arranged on the edges of the opposite sides, respectively constituting a first bayonet port and a second bayonet port for clamping; a mask connector clamped to the first bayonet port is also arranged on one side of the box body.

[0007] Preferably, slide rails are provided on both sides of the first opening and the second opening, respectively, and the first clamping plate and the third clamping plate slide up and down on the slide rails.

[0008] Preferably, the mask joint includes a first joint part, a fitting part, a limiting part, a receiving part, and a second joint part which are connected in sequence, the first joint part is connected to the filter head of the breathing mask; the fitting part is a conical structure that cooperates with the breathing mask; the second joint part is snap-fitted with the first bayonet.

[0009] Preferably, a supporting plate for supporting the mask joint is provided on one side of the second clamping plate, and the supporting plate is an arc-shaped structure cooperating with the receiving portion.

[0010] Preferably, a fixing block is provided on one side of the first clamping plate, and a fastening bolt for fastening the mask joint is threadedly connected to the fixing block, and one end of the fastening bolt passes through the fixing block and is exposed, and abuts against the side wall of the receiving portion.

[0011] Preferably, the fastening bolt is a butterfly bolt.

[0012] Preferably, one side of the box body is also provided with an opening for introducing clean gas.

[0013] The beneficial effects of the utility model are as follows: the clamp has adjustable first and second bayonet holes on both sides, which can meet the needs of particle counter test heads of different diameters and masks of different sizes. At the same time, the clamp has openings for introducing clean gas to ensure that no pollution is generated in the clamp. The clamp fixes the counter end and the mask end, so that the operation is more standardized and convenient, and the accuracy of the test is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a fixture for testing particle emission of a respiratory mask according to the utility model;

[0015] Figure 2 This is a partial structural schematic diagram of a fixture for testing particle emission of a respiratory mask according to the utility model;

[0016] Figure 3 It is a structural schematic diagram of the mask connector of the utility model;

[0017] Among them: the first clamping plate 10, the second clamping plate 12, the third clamping plate 14, the fourth clamping plate 16, the semicircular clamping plate 18, the first clamping plate 19, the box body 20, the first opening 22, the mask joint 24, the slide rail 26, the first joint part 28, the fitting part 30, the limiting part 32, the receiving part 34, the second joint part 36, the supporting plate 38, the fixing block 40, and the fastening bolts 42. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0019] like Figures 1 to 3As shown, a fixture for testing particle emission of respiratory masks of the utility model comprises a box body 20, and the first opening 22 and the second opening (not shown) are respectively arranged on opposite sides of the box body 20, and the second clamping plate 12 and the fourth clamping plate 16 are respectively arranged at the bottom of the first opening 22 and the second opening, and the first clamping plate 10 and the third clamping plate 14 are respectively arranged on the top of the first opening 22 and the second opening; the positions of the first clamping plate 10 and the second clamping plate 12 correspond to each other, and the positions of the third clamping plate 14 and the fourth clamping plate 16 correspond to each other, and the edges of the opposite sides are respectively provided with a semicircular bayonet 18, respectively forming a first bayonet 19 and a second bayonet (not shown) for clamping; and a mask connector 24 clamped with the first bayonet is also arranged on one side of the box body. The first bayonet on both sides of the box body 20 is clamped with the mask connector 24 and the connector of the particle counter, and the first clamping plate 10 and the third clamping plate 14 are movably arranged up and down to adapt to connectors of different sizes.

[0020] Slide rails 26 are respectively disposed on both sides of the first opening 22 and the second opening, and the first clamping plate 10 and the third clamping plate 14 slide up and down on the slide rails 26 .

[0021] The mask connector 24 includes a first connector portion 28, a fitting portion 30, a limiting portion 32, a receiving portion 34, and a second connector portion 36 which are connected in sequence. The first connector portion 28 is connected to the filter head of the respiratory mask; the fitting portion 30 is a conical structure that matches the respiratory mask; and the second connector portion 36 is engaged with the first bayonet. The mask connector 24 is used to achieve a better connection between the respiratory mask and the fixture.

[0022] Furthermore, a support plate 38 for supporting the mask connector 24 is provided on one side of the second clamping plate 12, and the support plate 38 is an arc-shaped structure matched with the receiving portion 34. The support plate 38 supports the mask connector 24 from below to improve the connection stability between the mask connector 24 and the clamp.

[0023] Furthermore, a fixing block 40 is provided on one side of the first clamping plate 10, and a fastening bolt 42 for fastening the mask joint 24 is threadedly connected to the fixing block 40, and one end of the fastening bolt 42 penetrates the fixing block 40 and is exposed and abuts against the side wall of the receiving portion 34. The fastening bolt 42 improves the stability of the mask joint 24 and can also adapt to different mask joint 24 diameters.

[0024] Furthermore, the fastening bolt 42 is a butterfly bolt, which is easy to screw on.

[0025] One side of the box body 20 is also provided with an opening for introducing clean gas.

[0026] When the device is working, the breathing mask is connected to the first joint part 28 of the mask joint 24, and the second joint part 36 is snap-fitted with the first bayonet on one side of the box body 20; the joint of the particle counter is snap-fitted with the first bayonet on the other side of the box body 20; clean gas is introduced into the clean box body 20 from the opening, and after cleaning is completed, gas is blown into the breathing mask to observe the particle counter data.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fixture for testing particle emission of a respiratory mask, comprising a box, characterized in that: The first opening and the second opening are respectively provided on opposite sides of the box body, the second clamping plate and the fourth clamping plate are respectively provided on the bottom of the first opening and the second opening, and the first clamping plate and the third clamping plate are respectively provided on the top of the first opening and the second opening so as to be movably provided up and down; the positions of the first clamping plate and the second clamping plate correspond to each other up and down, and the positions of the third clamping plate and the fourth clamping plate correspond to each other up and down, and semicircular bayonet sockets are respectively provided on the edges of the opposite sides, respectively constituting a first bayonet socket and a second bayonet socket for clamping; a mask connector clamped to the first bayonet socket is also provided on one side of the box body.

2. A fixture for testing particle emission of a respiratory mask according to claim 1, characterized in that: Slide rails are respectively arranged on both sides of the first opening and the second opening, and the first clamping plate and the third clamping plate slide up and down on the slide rails.

3. A fixture for testing particle emission of a respiratory mask according to claim 1, characterized in that: The mask joint includes a first joint part, a fitting part, a limiting part, a receiving part, and a second joint part which are connected in sequence. The first joint part is connected to the filter head of the breathing mask; the fitting part is a conical structure that matches the breathing mask; and the second joint part is snap-fitted to the first bayonet.

4. A fixture for testing particle emission of a respiratory mask according to claim 3, characterized in that: A supporting plate for supporting the mask joint is arranged on one side of the second clamping plate, and the supporting plate is an arc-shaped structure matched with the receiving portion.

5. A fixture for testing particle emission of a respiratory mask according to claim 3, characterized in that: A fixing block is arranged on one side of the first clamping plate, and a fixing bolt for fastening the mask joint is threadedly connected to the fixing block, and the bottom end of the fixing bolt is exposed through the fixing block and abuts against the side wall of the receiving portion.

6. A fixture for testing particle emission of a respiratory mask according to claim 5, characterized in that: The fastening bolt is a butterfly bolt.

7. A fixture for testing particle emission of a respiratory mask according to claim 1, characterized in that: One side of the box body is also provided with an opening for introducing clean gas.

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