CN107899201B - Parallel inspiration and expiration respiration trainer - Google Patents
Parallel inspiration and expiration respiration trainer Download PDFInfo
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- CN107899201B CN107899201B CN201710990978.0A CN201710990978A CN107899201B CN 107899201 B CN107899201 B CN 107899201B CN 201710990978 A CN201710990978 A CN 201710990978A CN 107899201 B CN107899201 B CN 107899201B
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/18—Exercising apparatus specially adapted for particular parts of the body for improving respiratory function
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
Abstract
The utility model relates to a parallel type inspiration and expiration respiration trainer, which comprises an outer barrel, an outer screw sleeve and an end cover, wherein the outer screw sleeve is coaxially arranged in the outer barrel, one end of the outer screw sleeve is provided with a first air hole, the other end of the outer screw sleeve is provided with a second air hole, the outer wall of the first air hole end of the outer screw sleeve is provided with a convex ring, the convex ring is provided with a third air hole, the outer screw sleeve is provided with a step at a position close to the second air hole, the diameter of an inner cavity of the outer screw sleeve at the second air hole end is smaller than that of the first air hole end, one end of the outer barrel is arranged at one end of the convex ring of the outer screw sleeve through a first axial limiting device, so that the outer barrel and the outer screw sleeve can relatively rotate, and the other end of the outer barrel is provided with an opening.
Description
Technical Field
The utility model relates to a parallel type inspiration and expiration respiration trainer.
Background
With the aggravation of atmospheric pollution and the aging of crowd structures, the prevalence of respiratory diseases increases year by year, and becomes a great problem affecting the public health of residents nationwide. Respiratory diseases easily cause dyspnea of human body, thereby causing hypoxia and inducing diseases in heart and brain. Different respiratory diseases can lead to different dyspnea, and dyspnea caused by respiratory lesions is represented in three forms: dyspnea due to laryngeal and tracheal stenosis, dyspnea due to bronchial asthma and obstructive pulmonary disease, and dyspnea due to pneumonic pulmonary fibrosis and pneumothorax.
In order to solve the problem of dyspnea of a human body caused by respiratory diseases, on one hand, positive treatment is carried out, on the other hand, breathing training is carried out in the treatment process, the muscle strength of a diaphragm and external intercostal muscles during inspiration, internal intercostal muscles and abdominal muscles during expiration and other auxiliary muscles is improved, the effective abdominal breathing is recovered as much as possible, the breathing capacity is improved, the inhalation and carbon dioxide emission of oxygen are improved, thereby improving dyspnea symptoms and reducing postoperative complications. In addition, for dyspnea caused by difficult-to-cure lung diseases and aged respiratory organs, respiratory capacity of the lung can be enhanced through respiratory training, cardiopulmonary function is improved, and life quality is improved.
At present, a plurality of instruments specially used for expiration training and inspiration training mostly adopt float-type structures, such as a respiratory trainer of Xifeng kang tablet, a respiratory trainer of Chongqingbo vitamin technology limited company, a Ruiteng respiratory single ball trainer and the like. The shortfall of this type of breath trainer is: (1) When in use, the cylindrical barrel cavity with the floater is required to be vertically arranged; (2) Only can be used for inspiration training, and the lip-shortening breathing training requires the patient to control the opening degree of the lips, so that the randomness is relatively high; (3) inhalation resistance adjustment discontinuity; (4) Most of them have large volume, heavy weight and inconvenient carrying. In addition, se:Sub>A small part of products such as PowerBreathe breath trainer, cheng Chang SC-A breath trainer, utility model patent 201520499638.4 and the like have no body position requirement, but only can perform inspiration training, and have se:Sub>A complex structure.
Disclosure of Invention
The utility model overcomes the defects of the technology and is a portable parallel type inspiration and expiration breathing trainer which is simple to use and has no body position requirement, the trainer can realize inspiration training, expiration training and mixed breathing training aiming at inspiration difficulty, expiration difficulty and mixed breathing difficulty at the same time, and the inspiration resistance and expiration resistance can be independently and continuously adjusted.
The utility model provides a parallel type breathe in and breathe training ware breathes, includes urceolus, outer screw rod sleeve and end cover, outer screw rod sleeve coaxial arrangement is in the urceolus, outer screw rod sleeve's one end is equipped with first gas vent, and the other end is equipped with the second gas vent, be equipped with the bulge loop on the outer wall of outer screw rod sleeve's first gas vent end, be equipped with the third gas vent on the bulge loop, outer screw rod sleeve is equipped with a step in the position that is close to the second gas vent, makes outer screw rod sleeve inner chamber be less than the diameter of first gas vent end in the second gas vent end, the one end of urceolus is installed on outer screw rod sleeve's bulge loop one end through first axial stop device for urceolus and outer screw rod sleeve can relatively rotate, the other end of urceolus is the opening, the end cover is fixed on outer screw rod sleeve bulge loop's the other end, be equipped with the fourth gas vent on the end cover, third gas vent and fourth gas vent intercommunication, second gas vent, outer screw rod sleeve inner chamber, first gas vent and fourth gas vent form the breathing air flue, fourth gas vent, outer wall, outer screw rod sleeve and outer wall and outer screw rod opening form the breathing air flue;
the inner screw is arranged on the end cover through a second axial limiting device and extends out of a fourth air hole on the end cover, so that the inner screw can relatively rotate relative to the end cover, an inner nut is arranged on the inner screw and limited in the outer screw sleeve through a first circumferential limiting device, so that the inner nut can axially move along the outer screw sleeve, an air suction valve core is also arranged in the outer screw sleeve, the air suction valve core is limited in the outer screw sleeve through a second circumferential limiting device, one end of the air suction valve core is connected with the inner nut through an air suction pressure regulating spring and is linked with the inner nut, the other end of the air suction valve core is tightly sealed on a first sealing piece of a step of the outer screw sleeve through the air suction pressure regulating spring, and the pressure of the air suction valve core and the first sealing piece on the step is controlled through the compression amount of the air suction pressure regulating spring;
the outer screw sleeve is provided with external threads, the outer screw sleeve is provided with an external nut, the external nut is limited in a gap between the outer barrel and the outer screw sleeve through a third circumferential limiting device, so that the external nut can axially move along the outer barrel, an exhalation valve core is further arranged in the gap between the outer barrel and the outer screw sleeve, the exhalation valve core is limited in the gap between the outer barrel and the outer screw sleeve through the third circumferential limiting device, one end of the exhalation valve core is connected with the external nut through an exhalation pressure regulating spring and is linked with the external nut, the other end of the exhalation valve core is tightly sealed on a second sealing piece of a convex ring of the outer screw sleeve through an exhalation pressure regulating spring, and meanwhile, the third air hole is sealed, and the pressure of the exhalation valve core and the second sealing piece on the convex ring is controlled through the compression amount of the exhalation pressure regulating spring.
By adopting the structure, when the air is exhaled through the fourth air hole, air flows into the inner top pressure air suction valve core of the outer screw sleeve through the first air hole, the air suction valve core is sealed with the step, so that the air suction air passage is sealed, meanwhile, the air flows into the third air hole to push the air exhalation valve core to move, the air exhalation air passage is opened, the air flows out of the air exhalation air passage to finish the training of the exhalation resistance, and when the air is inhaled through the fourth air hole, negative pressure is formed in the outer screw sleeve to drive the air suction valve to be separated from the step, the air suction air passage is opened, and the air flows out of the fourth air hole through the air suction air passage from the second air hole. By adopting the mode, the inspiration load, the expiration load and the breath training can be realized through one device, so that a doctor can conveniently guide to regularly adjust the inspiration load, the expiration load and the breath training time, the optimal training effect is realized, and the pulmonary function rehabilitation problem of mixed dyspnea is solved.
The inner screw is provided with single-thread threads, the single-thread threads are axially cut into three strips for reducing the screwing friction force of the threads, and the outer threads on the outer wall of the outer screw sleeve are axially cut into three strips for reducing the screwing friction force of the threads.
The air suction valve core is provided with a guide rod at a position corresponding to the second air hole, and the guide rod is arranged in the second air hole when the air suction valve core is sealed with the step of the outer screw sleeve. Therefore, deflection errors of the air suction valve core during axial movement along the outer screw sleeve are reduced, friction between the air suction valve core and the outer screw sleeve is reduced, and influences of friction force on inspiration load and expiration load are reduced.
The front end of the guide rod is a conical surface, and the second air hole is a conical hole corresponding to the front end of the guide rod. The contact surface of the guide rod and the second air hole is approximately in line contact, so that friction force between the guide rod and the second air hole is reduced, and influence of friction force on inhalation load and exhalation load is reduced.
The outside movable mounting of end cover has the mouthpiece that communicates with the fourth gas pocket to the convenience is to the dismantlement of mouthpiece, can train the back of accomplishing on the one hand and washs the mouthpiece, on the other hand, can conveniently rotate the internal screw rod.
A plurality of first guide sliding blocks are axially arranged on the inner wall of the outer screw sleeve, a first guide groove and a second guide groove corresponding to the first guide sliding blocks are respectively arranged on the inner nut and the air suction valve core, the first guide sliding blocks and the first guide grooves on the inner nut form a first circumferential limiting device, and the first guide sliding blocks and the second guide grooves on the air suction valve core form a second circumferential limiting device;
the inner wall of the outer cylinder is axially provided with a plurality of second guide sliding blocks, the outer nut and the breathing valve core are respectively provided with a third guide groove and a third guide groove corresponding to the second guide sliding blocks, the third guide grooves on the second guide sliding blocks and the outer nut form a third circumferential limiting device, and the fourth guide grooves on the second guide sliding blocks and the breathing valve core form a fourth circumferential limiting device.
The first sealing piece and the second sealing piece are wedge-shaped sealing rings.
The outer cylinder and the outer screw sleeve are made of transparent materials, load scales for adjusting loads are arranged on the outer cylinder and the outer screw sleeve, and the load scales comprise load scales for adjusting inspiration loads and load scales for adjusting expiration loads, so that the outer cylinder and the outer screw sleeve can be independently arranged to corresponding load scales according to doctor guidance, and the outer cylinder and the outer screw sleeve are convenient for patients to use.
Due to the adoption of the structure, the device can realize inspiration training, expiration training and mixed respiration training simultaneously, the inspiration load and the expiration load can be independently set to corresponding load scales according to doctor guidance, and the inspiration load and the expiration load can be continuously adjustable; when the inspiration load and the expiration load are adjusted to the specified scales, the inspiration and expiration load fluctuation is small and the accuracy is high in the inspiration and expiration training process; the inner cylinder and the outer cylinder are nested, so that the length is short, the volume is small, and the carrying is convenient; when in use, the utility model has no body position requirement for patients, and is convenient and comfortable to adjust and use; besides being used for patients alone, the breathing machine can also be connected with auxiliary breathing equipment such as a breathing machine to adjust the expiration and inspiration resistance of the breathing channel gas.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 (a) is a schematic structural view of the outer screw sleeve according to the present utility model.
Fig. 2 (b) is a schematic structural view of the outer screw sleeve according to the present utility model.
Fig. 3 is a schematic structural view of the air suction valve core of the present utility model.
Fig. 4 is a schematic structural view of the breathing valve core of the present utility model.
Fig. 5 is a schematic structural view of the inner nut of the present utility model.
Fig. 6 is a schematic structural view of the outer nut of the present utility model.
FIG. 7 is a schematic view of the structure of the inner screw of the present utility model.
In the drawings, 1, an outer cylinder, 2, an outer screw sleeve, 21, a first air hole, 22, a second air hole, 23, a third air hole, 24, a convex ring, 25, a step, 3, an outer nut, 4, an air suction valve core, 5, an expiratory pressure regulating spring, 6, an inspiratory pressure regulating spring, 7, an inner screw, 8, an inner nut, 9, a retainer ring, 10, an air suction valve core, 11, an end cover, 111, a fourth air hole and 12, a mouthpiece.
Detailed Description
The technical content of the present utility model will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 7, the parallel inspiration and expiration respiration training device comprises an outer cylinder 1, an outer screw sleeve 2, an outer nut 3, an inspiration valve core 4, an expiration pressure adjusting spring 5, an inspiration pressure adjusting spring 6, an inner screw 7, an inner nut 8, a retainer ring 9, an expiration valve core 10, an end cover 11 and a mouthpiece 12.
Inhalation resistance adjusting system:
consists of an outer screw sleeve 2, an air suction valve core 4, an air suction pressure regulating spring 6, an inner screw 7, an inner nut 8, an air outlet valve core 10 and an end cover 11. The outer screw sleeve 2 and the end cover 11 are connected together by glue, and the suction valve core 4 and the breathing valve core 10 form a cavity. When inhaling, the air in the cavity enters the lung of human body through the mouthpiece, and the air pressure of the inner body of the cavity is lower than the external air pressure. The one-way valve formed by the breathing valve core 10 and the right end structure of the outer screw sleeve 2 prevents external air from entering the cavity from the breathing valve core. The air suction valve core 4 is pressed on the step of the outer screw sleeve 2 under the action of the leftward pressure of the air suction pressure regulating spring 6 to form a one-way valve, when the air pressure in the cavity is low enough, the acting force of the internal and external air pressure on the air suction valve core 4 is larger than the acting force of the air suction pressure regulating spring 6 on the air suction valve core 4, the air suction valve core 4 moves rightward, the valve formed by the air suction valve core 4 and the outer screw sleeve 2 is opened, and external air is sucked into the lung by a human body through the valve. Since the external atmospheric pressure can be regarded as constant, the extension of the spring 6 can be adjusted to change the acting force acting on the air suction valve core 4, so as to control the pressure in the cavity communicated with the oral cavity through the mouthpiece 12 when the valve is opened, that is, the pressure in the oral cavity of the human body. The larger the difference between the oral pressure of the human body and the external air pressure is, the larger the inhalation resistance of the lung is, and the larger the load acting on the inhalation muscle group of the lung is. That is, by adjusting the extension of the spring 6, the load on the pulmonary inspiratory muscle group can be adjusted, thereby achieving the purpose of training the pulmonary inspiratory muscle group force under a controllable load.
The specific implementation principle of the extension adjustment of the suction pressure adjusting spring 6 is as follows:
the inner screw 7 and the end cover 11 are restrained by a right stop part of the inner screw 7 along the axial direction, and have no relative movement along the axial direction. The inner nut 8 and the outer screw sleeve 2 are restrained with the first guide sliding block of the inner wall of the outer screw sleeve 2 along the circumferential direction through the guide groove of the inner nut 8, and the inner nut 8 and the outer screw sleeve have no relative movement along the circumferential direction. The inner nut 8 and the screw 7 are connected by threads. The right end of the inner screw 7 is rotated, causing the inner screw 7 to rotate relative to the outer screw sleeve 2 and the end cap 11. Since the inner nut 8 and the outer screw sleeve 2 are restrained circumferentially, the inner nut 8 cannot rotate relative to the outer screw sleeve 2 and the end cap 11. So that rotating the inner screw 7, the inner nut 8 will rotate relative to the inner screw 7, and in the case of a threaded engagement, the inner nut 8 will move relative to the inner screw 7 in the axial direction. Since the relative positions of the air suction valve core 4 and the inner screw rod 7 in the axial direction are determined, the distance between the inner nut 8 and the air suction valve core 4 is changed along with the movement of the inner nut 8 along the axial direction of the inner screw rod 7, the length x of the air suction pressure adjusting spring 6 is changed, the acting force of the spring acting on the air suction valve core 4 is changed, the corresponding oral cavity pressure for opening the air suction valve core 4 is changed, and the load of the air suction muscle group of the lung is changed.
The resolution of the load adjustment of the pulmonary inspiration muscle group depends on the rigidity K of the spring 6 and the minimum displacement adjustment quantity Deltax of the inner nut 8 along the axial direction, the smaller the rigidity K of the spring 6 is, the smaller the change quantity K.Deltax of the acting force of the spring corresponding to the length change Deltax of the spring acting on the inspiration valve core 4 is adjusted, and the higher the resolution of the load adjustment of the inspiration muscle group is. In the design process, parameters related to the spring stiffness, such as the outer diameter, the wire diameter, the free length and the coil number, are determined according to the resolution requirement. And simultaneously, overlarge gap throttling between plates formed by the air suction valve core 4 and the outer screw sleeve 2 is avoided as much as possible. Under the design concept, the left step part of the outer screw sleeve 2 is designed into a conical boss, and the contact part of the conical boss and the air suction valve core 4 is in line contact as far as possible.
In order to reduce the excessive friction force between the suction valve core 4 and the inner wall of the outer screw sleeve 2 caused by deflection of the suction valve core 4, a guide groove is circumferentially arranged at the right end of the suction valve core 4 and matched with a first guide sliding block on the inner wall of the outer screw sleeve 2, and an elongated guide rod is arranged at the left end of the suction valve core 4 and matched with a hole at the left end of the outer screw sleeve 2, so that deflection errors of the suction valve core 4 during axial movement along the outer screw sleeve 2 are reduced, and friction between the suction valve core 4 and the outer screw sleeve 2 is reduced. In addition, the hole at the left end part of the outer screw sleeve 2 is designed into a conical surface hole, so that the left end part of the outer screw sleeve 2 and the long and thin guide rod at the left end of the suction valve core 4 form approximate line contact instead of surface contact, and the friction force between the two is reduced.
Exhalation resistance adjustment system: consists of an outer cylinder 1, an outer screw sleeve 2, an outer nut 3, an inhalation valve core 4, an exhalation pressure adjusting spring 5, a retainer ring 9, an exhalation valve core 10 and an end cover 11. The outer screw sleeve 2, the suction valve core 4, the exhalation valve core 10 and the end cap 11 form a cavity. Exhaled air enters the cavity through the mouthpiece and acts on the inhalation valve cartridge 4 and exhalation valve cartridge 10. Because the one-way valve formed by the air suction valve core 4 and the boss structure at the left end of the outer screw sleeve 2 does not allow the exhale air to be discharged outwards from the cavity, the exhale air can only be discharged outwards from the cavity through the one-way valve formed by the air suction valve core 10 and the structure at the right end of the outer screw sleeve 2. Because the expiratory pressure regulating spring 5 has acting force on the expiratory valve core 10, only when the pressure in the cavity is large enough to enable the acting force of the internal and external air pressure on the expiratory valve core 10 to be larger than the acting force of the expiratory pressure regulating spring 5 on the expiratory valve core 10, the expiratory valve core 10 moves leftwards, the valve formed by the expiratory valve core 10 and the external screw sleeve 2 is opened, and the air exhaled from the oral cavity is discharged to the external atmosphere from the oral cavity. The corresponding oral pressure can be adjusted by adjusting the extension of the expiratory pressure adjusting spring 5 and adjusting the acting force of the expiratory valve core 10 acted by the spring 5, so that the purposes of adjusting expiratory resistance and expiratory muscle group load are achieved.
The specific implementation principle of the extension adjustment of the expiratory pressure adjusting spring 5 is as follows:
the outer screw sleeve 2 and the end cover 11 are connected together through glue, the outer cylinder 1 is restrained with the outer screw sleeve 2 along the axial direction through the baffle plate 9, but the outer cylinder 1 can rotate relative to the outer screw sleeve 2. The outer nut 3 and the outer cylinder 1 are restrained along the circumferential direction of the outer cylinder 1 by a guide groove on the outer nut 3 and a second guide sliding block on the inner wall of the outer cylinder 1, and have no relative movement along the circumferential direction, and when the outer cylinder 1 rotates, the outer nut 3 can rotate along with the rotation. The outer nut 3 is in threaded connection with the outer screw sleeve 2, the outer barrel 1 is rotated, the outer barrel 1 rotates relative to the outer screw sleeve 2, the outer screw sleeve 2 rotates relative to the outer screw sleeve 2 under the drive of the outer barrel 1, the outer nut 3 moves relative to the outer screw sleeve 2 along the axial direction according to the threaded motion transmission principle, the distance between the outer nut 3 and the exhalation valve core 10 changes, and the elongation of the exhalation pressure regulating spring 5 changes.
As with the inspiratory spring design and inspiratory valve design, to improve the resolution of pulmonary expiratory muscle group load adjustment, it is also necessary to ensure by design and manufacture the accuracy of the thread transfer between the outer nut 3 and the outer screw sleeve 2 and the relevant parameters of the spring 5. In order to ensure that the oral pressure is constant throughout the exhalation after the spring 6 has been set in position, it is also necessary by means of the structural design to reduce the stiffness of the spring as much as possible while at the same time reducing the displacement of the exhalation valve cartridge 10 at maximum opening of the valve as much as possible, if load adjustment is met.
The specific implementation of respiratory training by using the apparatus is as follows:
(1) Pulmonary inspiratory muscle group training. The length of the expiratory pressure regulating spring 5 is adjusted such that the force of the spring 5 acting on the expiratory valve cartridge 10 is minimized to a negligible extent for the resistance of the expiratory process. The inspiratory pressure adjusting spring 6 is adjusted to adjust the spring length to the load scale specified by the doctor. The mouth is used to hold the mouthpiece 12, the nose clip is used to clip the nostrils, and the mouth is used to exhale and inhale against the mouthpiece 12, thereby achieving the training of the inhalation muscle group under the preset load. According to doctor's instruction, can regularly adjust inspiration load and inspiration training time to realize best training effect, solve the pulmonary function rehabilitation problem of inspiratory dyspnea.
(2) Pulmonary expiratory muscle group training. The length of the suction pressure regulating spring 6 is regulated so that the force of the spring 6 acting on the suction valve core 4 is minimized to the point where the resistance to the suction process is negligible. The expiratory pressure adjusting spring 5 is adjusted to adjust the spring length to the load scale specified by the doctor. The mouth is used to hold the mouthpiece 12, the nose clip is used to clip the nostrils, and the mouth is used to exhale and inhale against the mouthpiece 12, thereby achieving the training of the expiratory muscle group under the preset load. According to doctor's instruction, can regularly adjust expiration load and expiration training time to realize best training effect, solve the pulmonary function rehabilitation problem of expiratory dyspnea.
(3) Pulmonary respiratory muscle group training. The length of the inhalation pressure adjusting spring 6 is adjusted to the inhalation load scale specified by the doctor, and the length of the exhalation pressure adjusting spring 5 is adjusted to the exhalation load scale specified by the doctor. The mouth is used to hold the mouthpiece 12, the nose-clamping device is used to clamp the nostrils, and the mouth is used to exhale and inhale against the mouthpiece 12, so that the inhalation and exhalation comprehensive muscle group training under the preset load can be realized. According to doctor's instruction, can regularly adjust inspiration load, expiration load and breathing gas training time to realize best training effect, solve the pulmonary function rehabilitation problem of mixed dyspnea.
Claims (8)
1. A parallel inspiration and expiration respiration trainer, characterized by: including urceolus (1), outer screw rod sleeve (2) and end cover (11), outer screw rod sleeve (2) coaxial arrangement is in urceolus (1), the one end of outer screw rod sleeve (2) is equipped with first gas vent (21), and the other end is equipped with second gas vent (22), be equipped with bead (24) on the outer wall of the first gas vent end of outer screw rod sleeve (2), be equipped with third gas vent (23) on bead (24), outer screw rod sleeve (2) are equipped with a step (25) in the position that is close to second gas vent (22), make the diameter of outer screw rod sleeve (2) inner chamber at second gas vent end be less than the diameter of first gas vent end, the one end of urceolus (1) is installed on outer screw rod sleeve's bead (24) one end through first axial stop device, but the other end opening of urceolus (1) and outer screw rod sleeve (2), end cover (11) are fixed on the other end of outer screw rod sleeve bead (24), be equipped with fourth gas vent (111), fourth gas vent (111) and gas vent (111) are formed to the one end of urceolus (1), fourth gas vent (111) and gas vent The inner wall of the outer cylinder (1) forms an expiration air passage with the outer wall of the outer screw sleeve (2), a third air hole (23) and a fourth air hole (111);
an inner screw (7) is coaxially arranged in the outer screw sleeve (2), the inner screw (7) is arranged on the end cover (11) through a second axial limiting device and extends out of a fourth air hole (111) on the end cover (11), so that the inner screw (7) can rotate relative to the end cover (11), an inner nut (8) is arranged on the inner screw (7), the inner nut (8) is limited in the outer screw sleeve (2) through a first circumferential limiting device, so that the inner nut (8) can axially move along the outer screw sleeve (2), an air suction valve core (4) is also arranged in the outer screw sleeve (2), the air suction valve core (4) is limited in the outer screw sleeve (2) through a second circumferential limiting device, one end of the air suction valve core (4) is connected with the inner nut (8) through an air suction pressure adjusting spring (6) and is in linkage with the inner nut (8), the other end of the air suction valve core (4) is tightly sealed on a first screw step (25) through the air suction pressure adjusting spring (6), and the air suction valve core (4) is in compression control of a first step (25) through the air suction pressure adjusting spring (6);
the outer screw sleeve (2) is provided with external threads, the outer screw sleeve (2) is provided with an external nut (3), the external nut (3) is limited in a gap between the outer cylinder (1) and the outer screw sleeve (2) through a third circumferential limiting device, the external nut (3) can axially move along the outer cylinder (1) when the outer cylinder (1) is rotated, the gap between the outer cylinder (1) and the outer screw sleeve (2) is internally provided with an air-breathing valve core (10), the air-breathing valve core (10) is limited in the gap between the outer cylinder and the outer screw sleeve through the third circumferential limiting device, one end of the air-breathing valve core (10) is connected with the external nut (3) through an air-breathing pressure regulating spring (5) and is linked with the external nut (3), the other end of the air-breathing valve core (10) is tightly sealed on a second sealing piece of an outer screw sleeve convex ring (24) through the air-breathing pressure regulating spring (5), and simultaneously, the pressure of the air-breathing valve core (10) and the second sealing piece (24) is tightly controlled through the pressure regulating spring.
2. The parallel inspiration and expiration respiration trainer according to claim 1, wherein: the air suction valve core (4) is provided with a guide rod (41) at a position corresponding to the second air hole (22), and the guide rod (41) is arranged in the second air hole (22) when the air suction valve core (4) is sealed with the step of the outer screw sleeve.
3. The parallel inspiration and expiration respiration trainer according to claim 2, wherein: the second air hole (22) is a taper hole, and the guide rod (41) is in line contact with the inner wall of the second air hole (22).
4. The parallel inspiration and expiration respiration trainer according to claim 2, wherein: the inner screw (7) is provided with single-thread threads, the single-thread threads are axially cut into three strips for reducing the screwing friction force of the threads, and the outer threads on the outer wall of the outer screw sleeve (2) are axially cut into three strips for reducing the screwing friction force of the threads.
5. The parallel inspiration and expiration respiration trainer according to claim 1, wherein: the outer side of the end cover (11) is movably provided with a mouthpiece (12) communicated with the fourth air hole (111).
6. The parallel inspiration and expiration respiration trainer according to claim 1, wherein: a plurality of first guide sliding blocks are axially arranged on the inner wall of the outer screw sleeve (2), a first guide groove and a second guide groove corresponding to the first guide sliding blocks are respectively arranged on the inner nut (8) and the air suction valve core (4), the first guide sliding blocks and the first guide grooves on the inner nut (8) form a first circumferential limiting device, and the first guide sliding blocks and the second guide grooves on the air suction valve core (4) form a second circumferential limiting device;
the inner wall of the outer cylinder (1) is axially provided with a plurality of second guide sliding blocks, the outer nut (3) is provided with third guide grooves corresponding to the second guide sliding blocks, the breathing valve core (10) is provided with fourth guide grooves corresponding to the second guide sliding blocks, the third guide grooves on the second guide sliding blocks and the outer nut (3) form a third circumferential limiting device, and the second guide sliding blocks and the fourth guide grooves on the breathing valve core (10) form a fourth circumferential limiting device.
7. The parallel inspiration and expiration respiration trainer according to claim 1, wherein: the first sealing piece and the second sealing piece are wedge-shaped sealing rings.
8. The parallel inspiration and expiration respiration trainer according to one of claims 1 to 7, wherein: the outer cylinder (1) and the outer screw sleeve (2) are made of transparent materials, and load scales for adjusting loads are arranged on the outer cylinder and the outer screw sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710990978.0A CN107899201B (en) | 2017-10-23 | 2017-10-23 | Parallel inspiration and expiration respiration trainer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710990978.0A CN107899201B (en) | 2017-10-23 | 2017-10-23 | Parallel inspiration and expiration respiration trainer |
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| CN107899201A CN107899201A (en) | 2018-04-13 |
| CN107899201B true CN107899201B (en) | 2023-05-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11759677B2 (en) | 2018-02-16 | 2023-09-19 | University Of Louisville Research Foundation, Inc. | Respiratory training and airway pressure monitoring device |
| CN109758153B (en) * | 2019-01-30 | 2024-04-02 | 上海长征医院 | Full nasal cavity air pressure detection equipment and application method thereof |
| CN111530034B (en) * | 2020-05-15 | 2022-03-08 | 吉林大学第一医院 | Breathing training device for rehabilitation |
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