Respiratory training equipment

Abstract

The invention discloses respiratory training equipment. The device comprises a shell, the shell is provided with an inner cavity penetrating through the bottom of the shell, the shell is provided with an air nozzle and an air return pipe in a penetrating mode, and the air return pipe is provided with a one-way valve conducting outwards; the piston shell slides in the shell, the interior of the piston shell is vertically through, and a circular truncated cone column extending upwards is arranged in the piston shell; the piston piece elastically slides in the piston shell through the spring, and the upper surface of the piston piece is connected with the top of the shell through the spring. Resistance is generated to inspiratory airflow through the air guide gap to train the inspiratory strength of a user, when the inspiratory strength of the user is increased, upward negative pressure borne by the piston shell and the piston piece is increased, the piston shell and the piston piece move upwards, the piston piece moves downwards relative to the piston shell under the elastic force of the spring, the air guide gap becomes small, and the inspiratory strength of the user is improved. The method is used for balancing suction efficiency change caused by suction intensity change.

Description

Technical Field

[0001] The present invention relates to the field of equipment for improving or restoring lung function, and in particular to a breathing training device. Background Art

[0002] People who engage in intense breathing exercises or patients who have undergone abdominal or thoracic surgery need breathing training to improve their breathing, depth, and duration, and to help improve or restore the respiratory function of the lungs. Breathing trainers achieve the purpose of breathing training by generating respiratory resistance. Mechanical ventilators are widely used due to their low price and easy maintenance. However, the respiratory resistance set by mechanical ventilators is constant, and the airflow resistance cannot be adjusted according to the intensity of a single inhalation, which is not conducive to adjusting the inhalation uniformity. Summary of the Invention

[0003] The purpose of the present invention is to solve the following problems existing in the prior art: mechanical respirators are widely used due to their advantages such as low price and easy maintenance, but the breathing resistance set by the mechanical respirators is constant and the airflow resistance cannot be adjusted according to the intensity of a single inhalation, which is not conducive to adjusting the inhalation uniformity.

[0004] To solve the problems existing in the prior art, the present invention provides a breathing training device, comprising a housing having an inner cavity extending through the bottom thereof, an air nozzle and an air return pipe respectively extending through the housing, and the air return pipe being provided with a one-way valve connected to the outside;

[0005] The piston shell slides inside the housing, the interior of the piston shell is connected vertically, and the interior of the piston shell is provided with a frustum column extending upward;

[0006] The piston plate slides elastically in the piston housing through a spring. The upper surface of the piston plate is connected to the top of the housing through a spring. A frustum opening is opened on the surface of the piston plate. The frustum column passes through the frustum opening. An air guide gap is formed between the frustum column and the frustum opening. When the piston plate moves toward the lower part of the piston housing, the air guide gap gradually becomes smaller.

[0007] Preferably, a retaining ring is provided at the lower portion of the inner wall of the piston housing, and the retaining ring is used to prevent the piston plate from moving to the maximum downward position in the piston housing.

[0008] Preferably, a contact piece is provided at the top of the inner part of the shell, the upper surface of the piston piece is connected to the contact piece through a spring, the contact piece can slide vertically inside the shell through a guide column, and a stud is rotatably provided at the top of the shell, and the stud thread passes through the contact piece.

[0009] Preferably, the diameter of the bottom opening of the shell is smaller than the diameter of its inner cavity, so that the piston shell can be blocked at the bottom of the shell. The shell surface is threaded with a screw, which is used to contact the top of the piston shell, so that the piston shell is limited to the bottom of the shell.

[0010] Preferably, a semi-annular through-hole is provided at the bottom of the piston housing, a rotary vane is rotatably provided at the bottom of the piston housing, a semi-annular regulating port is provided on the surface of the rotary vane, and the overlapping portion of the through-hole and the regulating port is used to conduct air.

[0011] Preferably, a filter screen is provided at the bottom of the shell.

[0012] Preferably, an annular cavity is opened around the bottom opening of the shell, the return air pipe passes through the annular cavity, and the annular cavity is connected to the bottom opening of the shell through annularly distributed grid openings, and the grid openings are tilted downward and point to the filter screen.

[0013] Compared with related technologies, the breathing training device provided by the present invention has the following beneficial effects:

[0014] The present invention generates resistance to the inhalation airflow through the air-guiding gap, which is used to train the user's inhalation strength. When the user's inhalation strength increases, the upward negative pressure on the piston shell and the piston plate increases, and the piston shell and the piston plate move upward. Under the elastic force of the spring, the piston plate moves downward relative to the piston shell, and the air-guiding gap becomes smaller, which is used to balance the changes in inhalation efficiency caused by changes in inhalation strength. Long-term use can control the user to achieve relatively uniform inhalation strength and rhythm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the overall structural diagrams of the present invention;

[0016] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0017] Figure 3 Schematic diagram of the internal structure of the housing of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the gate-aligned filter screen of the present invention;

[0019] Figure 5 This is a schematic diagram of the adaptation structure of the piston plate and the piston housing of the present invention;

[0020] Figure 6 This is a schematic diagram of the alignment distribution of the through port and the regulating port of the present invention;

[0021] Figure 7 This is a schematic diagram of the screw positioning piston housing structure of the present invention.

[0022] Numbers in the figure: 1. Shell; 11. Air nozzle; 2. Piston shell; 21. Conical column; 22. Through port; 23. Retaining ring; 3. Piston plate; 31. Conical port; 4. Return air pipe; 41. One-way valve; 5. Ring cavity; 51. Gate port; 6. Filter screen; 7. Contact piece; 71. Guide column; 72. Stud; 8. Rotary vane; 81. Adjustment port; 9. Screw. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0025] Breathing training equipment with three training modes;

[0026] Mode 1: If Figure 1 、 Figure 3 、 Figure 5 As shown, the cylindrical shell 1 has an inner cavity running through its bottom, an air nozzle 11 is provided on one side of the top of the side wall of the shell 1, and an air return pipe 4 is provided on the other side of the top of the side wall of the shell 1. The air return pipe 4 is provided with a one-way valve 41 that conducts outward, and the piston shell 2 is vertically adapted to slide inside the shell 1. The interior of the piston shell 2 is connected up and down. A frustum column 21 is fixed at the inner center of the piston shell 2, and the frustum column 21 extends upward. The small end of the frustum column 21 faces upward, and the piston piece 3 elastically slides in the piston shell 2 through a spring. The upper surface of the piston piece 3 is connected to the top of the shell 1 through a spring. A frustum opening 31 is provided at the center of the surface of the piston piece 3, and the small end of the frustum opening 31 faces upward. The frustum column 21 passes through the frustum opening 31, and an air guide gap is formed between the frustum column 21 and the frustum opening 31.

[0027] The user holds the air nozzle 11 in his mouth. In the initial state, the piston shell 2 is at the bottom of the shell 1 and the piston plate 3 is at the top of the piston shell 2 due to the elastic force. When inhaling, the gas is conducted upward from the bottom of the shell 1. After entering the piston shell 2, the gas is conducted upward through the air guide gap and then passes through the air nozzle 11 to the user's mouth. The air flow is hindered by the air guide gap, which makes the inhalation action have resistance. When the user's inhalation intensity increases, the upward negative pressure on the piston shell 2 and the piston plate 3 increases, and the piston shell 2 and the piston plate 3 move upward. Under the elastic force of the spring, the piston plate 3 moves downward relative to the piston shell 2, and the air guide gap becomes smaller, which is used to balance the changes in inhalation efficiency caused by changes in inhalation intensity. Long-term use can control the user to achieve relatively uniform inhalation intensity and rhythm.

[0028] A retaining ring 23 is provided at the lower part of the inner wall of the piston housing 2. The retaining ring 23 is used to prevent the piston plate 3 from moving downward to the maximum position in the piston housing 2, so that the air guide gap maintains a reasonable air guide volume.

[0029] Mode 2: If Figure 3As shown, a contact piece 7 is provided at the top of the housing 1. The upper surface of the piston piece 3 is connected to the contact piece 7 via a spring. Two guide posts 71 are symmetrically fixed to the top surface of the housing 1. The guide posts 71 slide downward in parallel and penetrate the contact piece 7. A stud 72 is installed on the top of the housing 1. The stud 72 is threaded through the contact piece 7.

[0030] By rotating the stud 72 to adjust the height of the contact piece 7, the pressure of the spring on the piston piece 3 is changed, which is used to adjust the displacement distance of the piston shell 2 and the piston piece 3 relative to the piston shell 2 during the rising process of the piston shell 2 and the piston piece 3, so that the change amplitude of the air guide gap can be adjusted to adapt to breathing exercises of different intensities.

[0031] Mode 3: If Figure 1 、 Figure 7 As shown, the diameter of the bottom opening of the housing 1 is smaller than the diameter of its inner cavity, so that the piston housing 2 can be blocked at the bottom of the housing 1. A screw 9 is threaded through the surface of the housing 1. The screw 9 is used to abut the top of the piston housing 2, so that the piston housing 2 is limited to the bottom of the housing 1;

[0032] like Figure 5 、 Figure 6 As shown, a semi-annular opening 22 is provided at the bottom of the piston housing 2, and a rotary vane 8 is rotatably provided at the bottom of the piston housing 2. The surface of the rotary vane 8 has a semi-annular regulating port 81. The overlapping portion of the opening 22 and the regulating port 81 is used to conduct air.

[0033] When implementing training mode 1 and training mode 2, the screw 9 is in an external state, the lifting and lowering of the piston shell 2 is not restricted by the screw 9, and the adjustment port 81 and the through port 22 completely overlap, ensuring that the ventilation area at the bottom of the piston shell 2 is larger than the ventilation area of ​​the air guide gap. When implementing training mode 3, the screw 9 is rotated to position the piston shell 2 at the bottom of the housing 1. At this time, the air guide gap is in a fixed state and will not change with the change of breathing intensity. The overlapping area of ​​the adjustment port 81 and the through port 22 is adjusted by rotating the rotary vane 8 to control the airflow conduction area and achieve the purpose of fixed airflow resistance control.

[0034] like Figure 2 、 Figure 3 As shown, the bottom opening of the housing 1 is in a reduced diameter shape, and a hard ring is configured on the edge of the filter 6. The filter 6 is fixed to the bottom opening of the housing 1 through a hard ring thread to filter dust in the inhaled air;

[0035] like Figure 4 As shown, an annular cavity 5 is provided around the bottom opening of the housing 1, and the return air pipe 4 passes through the annular cavity 5 through a one-way valve 41. The annular cavity 5 is connected to the bottom opening of the housing 1 through an annularly distributed grid opening 51, and the grid opening 51 is tilted downward to point to the filter screen 6;

[0036] During inhalation, the one-way valve 41 cuts off the air path of the return air pipe 4, so that the air flow can only be transmitted upward from the bottom opening of the shell 1. During exhalation, the one-way valve 41 opens, creating an unobstructed channel for the discharge of the air flow, so that the air flow can be discharged quickly. The air flow is introduced into the annular cavity 5 through the return air pipe 4, and then blown to the filter 6 through the annularly distributed grid openings 51. The air flow penetrates the filter 6 from the inside to the outside, which is used to clean the dust filtered on the outside of the filter 6, prevent the filter 6 from being adhered to the dust, affecting the stable conduction of the air flow during inhalation, and can extend the service life of the filter 6.

Claims

1. A breathing training device, characterized in that include: Housing (1), piston shell (2) and piston plate (3); The housing (1) has an inner cavity extending through the bottom thereof, an air nozzle (11) is provided on the upper portion of the side wall of the housing (1), an air return pipe (4) extending through the housing is installed on the side wall of the housing (1), and the air return pipe (4) is provided with a one-way valve (41) that is open to the outside; The piston shell (2) slides inside the housing (1), the interior of the piston shell (2) is connected vertically, and a frustum column (21) extending upward is provided inside the piston shell (2); The piston piece (3) slides elastically in the piston housing (2) via a spring, the upper surface of the piston piece (3) is connected to the top inner side of the housing (1) via a spring, a truncated cone opening (31) is provided on the surface of the piston piece (3), and the truncated cone column (21) passes through the truncated cone opening (31).

2. The respiratory training device according to claim 1, characterized in that A retaining ring (23) is provided at the lower portion of the inner wall of the piston housing (2), and the retaining ring (23) is used to prevent the piston plate (3) from moving to the maximum downward position in the piston housing (2).

3. The respiratory training device according to claim 1, characterized in that A contact piece (7) is provided at the top end of the housing (1), the upper surface of the piston piece (3) is connected to the contact piece (7) via a spring, symmetrically arranged guide pillars (71) respectively pass through the contact piece (7) and are fixed to the inner wall of the housing top surface, the contact piece (7) passes through the guide pillars (71) to achieve vertical sliding inside the housing (1), a stud (72) is rotatably provided at the top of the housing (1), and the stud (72) passes through the top of the housing and penetrates the contact piece (7) via a thread.

4. The respiratory training device according to claim 1, wherein The bottom opening of the housing (1) has a smaller diameter than the inner cavity diameter thereof, and a screw (9) is threaded through the side wall of the housing (1), and the screw (9) is used to abut against the top of the piston housing (2), so that the piston housing (2) is limited at the bottom of the housing (1).

5. The respiratory training device according to claim 1, wherein A semi-annular opening (22) is provided at the bottom of the piston housing (2), a rotary vane (8) is rotatably provided at the bottom of the piston housing (2), a semi-annular regulating port (81) is provided on the surface of the rotary vane (8), and the overlapping portion of the opening (22) and the regulating port (81) is used for conducting air.

6. The breathing training device according to claim 4, characterized in that A filter screen (6) is provided at the bottom opening of the housing (1).

7. The breathing training device according to claim 6, characterized in that An annular cavity (5) is provided between the inner bottom opening of the housing (1) and the bottom of the piston shell (2); one end of the return air pipe (4) is connected to the annular cavity (5); the inner peripheral side wall of the annular cavity (5) and the bottom opening of the housing (1) are connected via a plurality of grid openings (51) distributed in an annular manner; the grid openings (51) are tilted downward and point toward the filter screen (6).

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