Resistance-adjustable breathing filter

Abstract

The utility model discloses a breathing filter capable of adjusting resistance, particularly relates to a lung function instrument accessory, is applied to a lung function instrument, and comprises a tube body, a first ring knot is arranged on the tube body, and a rotating disc which is installed through a damping bearing and keeps rotating at a preset angle is arranged on the first ring knot. A plurality of rotating parts capable of being combined into a sealing cover are rotatably arranged in the first ring knot, a rotating part is rotatably arranged on the side face of each rotating part, a waist groove swing rod is rotatably arranged on the inner wall of the first ring knot, the rotating parts are slidably arranged in a waist groove of the waist groove swing rod, and an inner fluted disc is fixedly arranged on the inner wall of the rotating disc; the inner fluted disc is meshed with gears fixedly arranged on rotating shafts of the waist groove swing rods. The inner fluted disc is driven to rotate so as to drive the gear to rotate, so that the rotating parts are close to or far away from the circle center, and the ventilation quantity of the pipe body is adjustable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lung function instrument accessory, concretely relates to a breathing filter with adjustable resistance. BACKGROUND

[0002] Many respiratory diseases need to use inhaled drugs regularly, and different inhaled drugs have certain requirements for the inspiratory peak flow rate of patients under certain resistance. When the lung function of the patient is measured, the inspiratory peak flow rate can be measured, but the resistance cannot be set. If the inspiratory peak flow rate instrument with resistance is purchased separately, the accuracy is worse than that of the lung function instrument, and it is wasteful in terms of economic angle, time cost and manpower cost. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a breathing filter with adjustable resistance to solve the above problems.

[0004] In order to realize the above purpose, the utility model provides the following technical scheme:

[0005] A breathing filter with adjustable resistance is applied to a lung function instrument, comprising a pipe body, a first ring knot is arranged on the pipe body, a rotating disc is arranged on the first ring knot and is installed and kept rotating at a predetermined angle through a damping bearing, a plurality of rotating parts which can be combined into a cover are rotationally arranged in the first ring knot, a rotating shaft is rotationally arranged on the side surface of the rotating part, a waist groove swing rod is rotationally arranged on the inner wall of the first ring knot, the rotating shaft is slidingly arranged in the waist groove of the waist groove swing rod, an internal tooth disc is fixedly arranged on the inner wall of the rotating disc, and the internal tooth disc is meshed with the gear fixedly arranged on the rotating shaft at the end of the plurality of waist groove swing rods.

[0006] Preferably, a rubber coat is arranged on the rotating part.

[0007] Preferably, the triangular indicating part arranged on the side surface of the rotating disc points to the identification ring arranged on the pipe body.

[0008] Preferably, the pipe body has an inlet and an outlet, and the first ring knot is arranged close to the inlet.

[0009] Preferably, a second ring knot is arranged on the pipe body and is distributed close to the outlet, and a filter element is arranged in the second ring knot.

[0010] Preferably, the filter element is non-woven fabric.

[0011] In the above technical scheme, the breathing filter with adjustable resistance provided by the utility model has the following beneficial effects: the rotating disc is driven to rotate at a predetermined angle, so that the internal tooth disc rotates to drive the gear to rotate, so that the plurality of rotating parts are close to or away from the center of the circle, and the ventilation volume of the pipe body is adjustable. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0014] Figure 2 A cross-sectional structural diagram of the second ring knot provided in an embodiment of this utility model;

[0015] Figure 3 A cross-sectional structural diagram of the first ring knot provided in an embodiment of this utility model;

[0016] Figure 4 This is an enlarged planar schematic diagram of the air inlet port of the pipe provided in an embodiment of the present utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Tube body; 2. First ring joint; 21. Waist groove swing rod; 22. Gear; 3. Rotating disk; 31. Internal gear disk; 32. Triangular indicator; 4. Rotating part; 41. Rotating shaft; 5. Marking ring; 6. Second ring joint; 7. Filter element. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1-4 As shown, an adjustable resistance breathing filter, applied to a pulmonary function instrument, includes a tube body 1, on which a first ring joint 2 is provided. A rotating disk 3 is provided on the first ring joint 2, which is mounted and rotated at a predetermined angle by a damping bearing. Multiple rotating parts 4 that can be combined to form a cover are rotatably provided inside the first ring joint 2. A rotating shaft 41 is rotatably provided on the side of the rotating part 4. A waist groove swing rod 21 is rotatably provided on the inner wall of the first ring joint 2. The rotating shaft 41 is slidably provided in the waist groove of the waist groove swing rod 21. An internal gear disk 31 is fixedly provided on the inner wall of the rotating disk 3. The internal gear disk 31 meshes with gears 22 fixedly provided on the rotating shafts at the ends of the multiple waist groove swing rods 21.

[0021] Specifically, the pipe body 1 in the embodiment has an inlet and an outlet, and the first ring knot 2 is arranged close to the inlet.

[0022] Further, the rotating part 4 is provided with a rubber coat.

[0023] In the above technology, the rotating disc 3 is driven to rotate by a predetermined angle, so that the inner tooth disc 31 rotates to drive the gear 22 to rotate, so that the plurality of rotating parts 4 are close to or away from the center of the circle, so that the ventilation volume of the pipe body 1 can be adjusted.

[0024] As a further provided embodiment of the utility model, in combination with Figure 1 As shown in the figure, the triangular indicating part 32 arranged on the side of the rotating disc 3 points to the identification ring 5 arranged on the pipe body 1.

[0025] As a further provided embodiment of the utility model, the pipe body 1 is provided with a second ring knot 6 close to the outlet, and the second ring knot 6 is provided with a filter element 7.

[0026] Specifically, the filter element 7 in the embodiment is arranged close to the outlet of the pipe body 1, and the air is filtered through the filter element 7.

[0027] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled in the art, under the condition of not deviating from the spirit and scope of the utility model, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the utility model.

Claims

1. An adjustable resistance breathing filter, used in a pulmonary function testing device, characterized in that, The tube includes a tube body (1) on which a first ring joint (2) is provided. A rotating disk (3) is provided on the first ring joint (2) and is mounted on it by a damping bearing and rotates at a predetermined angle. Multiple rotating parts (4) that can be combined into a cover are rotatably provided inside the first ring joint (2). A rotating shaft (41) is rotatably provided on the side of the rotating part (4). A waist groove swing rod (21) is rotatably provided on the inner wall of the first ring joint (2). The rotating shaft (41) is slidably provided in the waist groove of the waist groove swing rod (21). An internal gear disk (31) is fixedly provided on the inner wall of the rotating disk (3). The internal gear disk (31) meshes with gears (22) fixedly provided on the rotating shafts at the ends of the multiple waist groove swing rods (21).

2. The adjustable resistance breathing filter according to claim 1, characterized in that, The rotating part (4) is provided with a rubber outer cover.

3. The adjustable resistance breathing filter according to claim 1, characterized in that, The triangular indicator (32) on the side of the rotating disk (3) points to the identification ring (5) on the tube (1).

4. The adjustable resistance breathing filter according to claim 1, characterized in that, The tube (1) has an inlet and an outlet, and the first annular junction (2) is arranged close to the inlet.

5. A breather filter with adjustable resistance according to claim 1, characterized in that, The tube body (1) is provided with a second ring knot (6) distributed near the outlet, and a filter element (7) is provided inside the second ring knot (6).

6. A breather filter with adjustable resistance according to claim 5, characterized in that, The filter element (7) is made of non-woven fabric.

Images