CN110478605B - Cardiovascular expansion device - Google Patents
Cardiovascular expansion device Download PDFInfo
- Publication number
- CN110478605B CN110478605B CN201910893071.1A CN201910893071A CN110478605B CN 110478605 B CN110478605 B CN 110478605B CN 201910893071 A CN201910893071 A CN 201910893071A CN 110478605 B CN110478605 B CN 110478605B
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- compression cylinder
- spring
- piston
- sleeve
- column
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
Abstract
The invention discloses a cardiovascular expansion device, which comprises a compression cylinder and an air guide pipe, wherein one end of the air guide pipe is hermetically connected with the input end of the compression cylinder, a piston is arranged in the compression cylinder, one end of the piston is connected with an output shaft, and the output shaft extends out of the compression cylinder, a damping mechanism is arranged between the other end of the piston and the compression cylinder, one end of the damping mechanism is connected with the piston through a first spring, and the other end of the damping mechanism is connected with the cylinder bottom of the compression cylinder. The cardiovascular expansion device provided by the invention adopts the structure, so that the piston can move more slowly and uniformly, the mechanical support mechanism is enhanced, and the smooth operation is ensured.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a cardiovascular expansion device.
Background
The heart is a hollow muscular organ, is positioned in the middle of a chest cavity, is divided into a left chamber and a right chamber by an interval, each chamber is divided into an atrium positioned at the upper part and a ventricle positioned at the lower part, the atrium collects heart blood, the ventricle emits blood to the heart, valves are arranged at the inlet and the outlet of the ventricle to ensure the unidirectional flow of the blood, the metabolic levels of organs and tissues are different under different physiological conditions of a human body, the blood flow needs are also different, the cardiovascular activity can change the cardiac blood discharge and the peripheral resistance under the mediation of nerves and body fluid of the body, and the blood flow distribution among the organs and tissues is coordinated to meet the blood flow needs of the organs and tissues.
Chinese patent CN201811602136.4 discloses a cardiovascular expansion device, including pipe, expander, leading-in head, air conduit and compression cylinder, the pipe is hollow tubulose, leading-in head is located the both ends of pipe, just leading-in head with pipe integrated into one piece, the expander is installed on the lateral wall of pipe, wherein the inside drive arrangement of compression cylinder has the damping guide arm, has seted up the screw thread on the lateral wall of damping guide arm, and the piston slides on the damping guide arm.
In above-mentioned patent document, reduce the moving speed of piston through setting up the damping guide arm, because damping guide arm mechanism is single, therefore the damping effect is not very good, can not effectively reduce the moving speed of piston, in addition, has seted up the screw thread on the lateral wall of damping guide arm, and the piston slides on the damping guide arm, and the screw thread can produce wearing and tearing to the inner wall of piston, shortens the life of piston, and then has shortened the life of device.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a cardiovascular expansion device, which solves the problems of poor damping effect and short service life of a damping guide rod in the cardiovascular expansion device disclosed by the patent.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
the cardiovascular expansion device comprises a compression cylinder and an air guide pipe, wherein one end of the air guide pipe is hermetically connected with the input end of the compression cylinder, a piston is arranged in the compression cylinder, one end of the piston is connected with an output shaft, the output shaft extends out of the compression cylinder, a damping mechanism is arranged between the other end of the piston and the compression cylinder, one end of the damping mechanism is connected with the piston through a first spring, and the other end of the damping mechanism is connected with the cylinder bottom of the compression cylinder.
Further, the damping mechanism includes:
the device comprises a movable seat, a baffle plate is arranged at one end of the movable seat, a convex shaft is connected with one end of the baffle plate, one end of a first spring is sleeved on the convex shaft, one end of the first spring is connected with one end of the baffle plate, and the other end of a piston can be abutted against one end of the baffle plate;
and the pair of linkage assemblies are respectively positioned on two sides of the other end of the movable seat, and are arranged between the other end of the movable seat and the annular plate positioned on the bottom of the compression cylinder.
Still further, the linkage assembly includes:
one end of the rack is connected with the other end of the movable seat, and the rack is in sliding fit with a corresponding guide sleeve arranged in the compression cylinder;
the rack is arranged in the compression cylinder, and the rack is meshed with the rack;
the swing rod comprises a circular plate and a rocker, the middle part of the circular plate is eccentrically connected with the gearwheel, a round hole is formed in the circular plate, a pin shaft positioned in the center of the gearwheel is positioned in the round hole, one end of the rocker is connected with the circular plate, and the other end of the rocker is hinged to a moving rod;
the small gear is arranged on the mounting plate and is in meshed connection with the large gear, and a small shaft is arranged on the small gear;
the connecting rod, the pin joint of one end of connecting rod is in on the uide bushing, the other end of connecting rod with the one end of motion pole is articulated mutually, the bar groove has been seted up at the middle part of connecting rod, the bar groove with staff sliding fit.
Still further, the linkage assembly further includes a second spring disposed between the other end of the rack and the annular plate.
Further, the movable seat further comprises a sleeve, the sleeve is in sliding fit with the compression cylinder, the bottom end of the sleeve is connected with the other end of the baffle through a short shaft, an annular boss is arranged on the periphery of the bottom end of the sleeve and in sliding fit with an annular groove in the inner wall of the compression cylinder, a connecting shaft is arranged at the inner end of the bottom wall of the sleeve, a pressing seat is arranged at the end of the connecting shaft, a mushroom groove is formed in the pressing seat, and one end of the rack is connected with the sleeve.
Furthermore, the damping mechanism further comprises a third spring, the third spring is sleeved on the sleeve, one end of the third spring is connected with the annular boss, and the other end of the third spring is connected with the bottom wall of the annular groove.
Furthermore, the damping mechanism further comprises a rubber column, one end of the rubber column is connected with the cylinder bottom of the compression cylinder, one end of the rubber column is located in the inner hole of the annular plate, and the other end of the rubber column extends into the mushroom groove and is connected with the mushroom groove in a matched mode.
Furthermore, a plurality of support columns are embedded in the rubber column and comprise bottom columns, the bottom columns are located in the column bodies of the rubber column, thick columns and hemispheroids which are sequentially connected are arranged at the end portions of the bottom columns, and the thick columns and the hemispheroids are located in mushroom heads of the rubber column.
(III) advantageous effects
The invention has the beneficial effects that: because the damping mechanism is arranged in the invention and comprises the structures such as the moving seat, the linkage assembly, the rubber column and the like, the damping mechanism can play an effective damping effect, effectively reduces the moving speed of the piston, and ensures that the mechanical support structure of the invention is more stable, thereby ensuring the smooth operation of the operation.
Drawings
Fig. 1 is a schematic view of the internal structure of the compression cylinder of the present invention.
Fig. 2 is an enlarged view at G in fig. 1.
Fig. 3 is an enlarged view at H in fig. 2.
Fig. 4 is an enlarged view at I in fig. 1.
FIG. 5 is a schematic structural diagram of the movable base of the present invention.
Fig. 6 is a schematic structural diagram of the support column of the present invention.
In the drawings: the pneumatic cylinder comprises a compression cylinder 10, an annular groove 101, an air guide pipe 20, a piston 30, a groove 301, an output shaft 40, a first spring 50, an annular plate 60, a guide sleeve 70, a mounting plate 80, a third spring 90, a spring seat 100, a base plate 1001, a mounting shaft 1002, a movable seat 1, a baffle plate 11, a protruding shaft 12, a sleeve 13, a short shaft 14, an annular boss 15, a connecting shaft 16, a pressing seat 17, a mushroom groove 171, a linkage assembly 2, a rack 21, a large gear 22, a pin shaft 221, a swing rod 23, a circular plate 231, a circular hole 2311, a swing rod 232, a moving rod 24, a small gear 25, a small shaft 251, a connecting rod 26, a strip-shaped groove 261, a second spring 27, an end plate 28, an end shaft 29, a rubber column 3, a column body 31, a mushroom head 32, a support column 4, a bottom column 41, a thick column 42 and a hemisphere 43.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.
The first embodiment is as follows:
as shown in fig. 1, a cardiovascular expansion apparatus comprises a compression cylinder 10 and an air conduit 20, wherein one end of the air conduit 20 is hermetically connected with an input end of the compression cylinder 10, a piston 30 is arranged in the compression cylinder 10, one end of the piston 30 is connected with an output shaft 40, the output shaft 40 extends out of the compression cylinder 10, a damping mechanism is arranged between the other end of the piston 30 and the compression cylinder 10, one end of the damping mechanism is connected with the piston 30 through a first spring 50, the first spring 50 is connected with a bottom wall of a groove 301 formed on a non-connecting end of the piston 30, the other end of the damping mechanism is connected with a cylinder bottom of the compression cylinder 10, and the cardiovascular expansion apparatus is provided with the damping mechanism, so that the moving speed of the piston 30 can be effectively reduced, and the piston 30 can be guaranteed to move at a constant speed, thereby making the mechanical support structure of the cardiovascular expansion apparatus more stable, ensuring the smooth operation.
As shown in fig. 2, the damping mechanism includes a movable base 1 and a pair of linkage assemblies 2, one end of the movable base 1 is provided with a baffle 11, one end of the baffle 11 is connected with a protruding shaft 12, one end of the first spring 50 is sleeved on the protruding shaft 12, one end of the first spring 50 is connected with one end of the baffle 11, and the other end of the piston 30 can be pressed against one end of the baffle 11; the pair of linkage assemblies 2 are respectively positioned at two sides of the other end of the movable base 1, and the linkage assemblies 2 are arranged between the other end of the movable base 1 and an annular plate 60 positioned at the bottom of the compression cylinder 10.
As shown in fig. 2, the linkage assembly 2 comprises a rack 21, a gearwheel 22, a swing link 23, a pinion 25 and a connecting rod 26, wherein one end of the rack 21 is connected with the other end of the movable base 1, and the rack 21 is in sliding fit with a corresponding guide sleeve 70 installed in the compression cylinder 10; the gearwheel 22 is meshed with the rack 21, and the gearwheel 22 is arranged on a corresponding mounting plate 80 positioned in the compression cylinder 10; the swing rod 23 comprises a circular plate 231 and a rocker 232, the middle part of the circular plate 231 is eccentrically connected with the large gear 22, a circular hole 2311 is formed in the circular plate 231, a pin shaft 221 positioned at the center of the large gear 22 is positioned in the circular hole 2311, one end of the rocker 232 is connected with the circular plate 231, and the other end of the rocker 232 is hinged to a moving rod 24; the small gear 25 is arranged on the mounting plate 80, the small gear 25 is in meshed connection with the large gear 22, and the small gear 25 is provided with a small shaft 251; one end of the connecting rod 26 is pivoted on the guide sleeve 70, the other end of the connecting rod 26 is hinged with one end of the moving rod 24, a strip-shaped groove 261 is formed in the middle of the connecting rod 26, and the strip-shaped groove 261 is in sliding fit with the small shaft 251.
When the air pressure changes to drive the output shaft 40 to move, the piston 30 is driven to move, so that the rack 21 is driven to move, the large gear 22 is driven to rotate, the small gear 25 rotates, the swing rod 23 swings, and the other end of the moving rod 24 is driven to move in an 8 shape under the combined action of the rocker 232 and the connecting rod 26, so that the damping effect is achieved, and the moving speed of the piston 30 is reduced.
In this embodiment, the other end of the motion bar 24 is hooked.
Example two:
as shown in fig. 2, 3 and 4, on the basis of the first embodiment, the linkage assembly 2 further includes a second spring 27, the second spring 27 is disposed between the other end of the rack 21 and the annular plate 60, specifically, an end plate 28 and an end shaft 29 are connected to the other end of the rack 21, one end of the second spring 27 is connected to the end plate 28, one end of the second spring 27 is sleeved on the end shaft 29, the other end of the second spring 27 is connected to a spring seat 100, the spring seat 100 includes a base plate 1001 connected to the annular plate 60 and a mounting shaft 1002 connected to the base plate 1001, the other end of the rack 21 is connected to the base plate 1001, and the other end of the rack 21 is sleeved on the mounting shaft 1002 to urge the second spring 27 to be compressed or reset during the movement of the piston 30.
Example three:
as shown in fig. 5, on the basis of the second embodiment, the movable seat 1 further includes a sleeve 13, the sleeve 13 is in sliding fit with the compression cylinder 10, the bottom end of the sleeve 13 is connected with the other end of the baffle 11 through a short shaft 14, an annular boss 15 is arranged on the periphery of the bottom end of the sleeve 13, the annular boss 15 is in sliding fit with an annular groove 101 on the inner wall of the compression cylinder 10, a connecting shaft 16 is arranged at the inner end of the bottom wall of the sleeve 13, a pressing seat 17 is arranged at the end of the connecting shaft 16, a mushroom groove 171 is formed in the pressing seat 17, one end of the rack 21 is connected with the sleeve 13, when the output shaft 40 moves inward, the first spring 50 is compressed first, and when the piston 30 touches the baffle 11, the movable seat 1 is urged to move inward.
As shown in fig. 1 and 5, the damping mechanism further includes a third spring 90, the third spring 90 is sleeved on the sleeve 13, one end of the third spring 90 is connected to the annular boss 15, and the other end of the third spring 90 is connected to the bottom wall of the annular groove 101, so that the third spring 90 is urged to be compressed or reset during the movement of the piston 30.
Example four:
as shown in fig. 1 and 5, on the basis of the third embodiment, the damping mechanism further includes a rubber column 3, one end of the rubber column 3 is connected to the bottom of the compression cylinder 10, one end of the rubber column 3 is located in the inner hole of the annular plate 60, and the other end of the rubber column 3 extends into the mushroom groove 171 and is in fit connection with the mushroom groove 171, so that the rubber column 3 is caused to be compressed or elongated during the movement of the piston 30.
Example five:
as shown in fig. 1 and 6, on the basis of the fourth embodiment, a plurality of supporting columns 4 are embedded in the rubber column 3, each supporting column 4 includes a bottom column 41, the bottom column 41 is located in the column body 31 of the rubber column 3, a thick column 42 and a hemisphere 43 which are sequentially connected are arranged at the end portion of the bottom column 41, the thick column 42 and the hemisphere 43 are located in the mushroom head 32 of the rubber column 3, and the rubber column 3 is embedded with the plurality of supporting columns 4, so that the rigidity of the rubber column 3 is increased, the rubber column 3 can be prevented from being excessively deformed, the service life of the rubber column 3 is prolonged, the service life of the damping mechanism is further prolonged, and the service life of the cardiovascular dilator is prolonged.
It should be noted that the described embodiments of the invention are only preferred ways of implementing the invention, and that all obvious modifications, which are within the scope of the invention, are all included in the present general inventive concept.
Claims (4)
1. A cardiovascular expansion device comprises a compression cylinder (10) and an air guide pipe (20), wherein one end of the air guide pipe (20) is connected with an input end of the compression cylinder (10) in a sealing manner, a piston (30) is arranged in the compression cylinder (10), one end of the piston (30) is connected with an output shaft (40), and the output shaft (40) extends out of the compression cylinder (10), and the cardiovascular expansion device is characterized in that a damping mechanism is arranged between the other end of the piston (30) and the compression cylinder (10), one end of the damping mechanism is connected with the piston (30) through a first spring (50), and the other end of the damping mechanism is connected with the cylinder bottom of the compression cylinder (10);
wherein the damping mechanism comprises: the device comprises a movable seat (1), wherein a baffle plate (11) is arranged at one end of the movable seat (1), a convex shaft (12) is connected to one end of the baffle plate (11), one end of a first spring (50) is sleeved on the convex shaft (12), one end of the first spring (50) is connected with one end of the baffle plate (11), and the other end of a piston (30) can be pressed against one end of the baffle plate (11); the pair of linkage assemblies (2) are respectively positioned at two sides of the other end of the movable base (1), and the linkage assemblies (2) are arranged between the other end of the movable base (1) and an annular plate (60) positioned at the bottom of the compression cylinder (10);
the linkage assembly (2) comprises a rack (21), one end of the rack (21) is connected with the other end of the movable seat (1), and the rack (21) is in sliding fit with a corresponding guide sleeve (70) arranged in the compression cylinder (10); the large gear (22), the large gear (22) is meshed with the rack (21), and the large gear (22) is arranged on a corresponding mounting plate (80) in the compression cylinder (10); the swing rod (23) comprises a circular plate (231) and a rocker (232), the middle of the circular plate (231) is eccentrically connected with the large gear (22), a circular hole (2311) is formed in the circular plate (231), a pin shaft (221) located at the center of the large gear (22) is located in the circular hole (2311), one end of the rocker (232) is connected with the circular plate (231), and the other end of the rocker (232) is hinged to a moving rod (24); a pinion (25), wherein the pinion (25) is arranged on the mounting plate (80), the pinion (25) is in meshed connection with the gearwheel (22), and a small shaft (251) is arranged on the pinion (25); one end of the connecting rod (26) is pivoted on the guide sleeve (70), the other end of the connecting rod (26) is hinged with one end of the moving rod (24), a strip-shaped groove (261) is formed in the middle of the connecting rod (26), and the strip-shaped groove (261) is in sliding fit with the small shaft (251);
the linkage assembly (2) further comprises a second spring (27), and the second spring (27) is arranged between the other end of the rack (21) and the annular plate (60);
remove seat (1) and still include sleeve (13), sleeve (13) with compression cylinder (10) sliding fit, the bottom of sleeve (13) pass through minor axis (14) with the other end of baffle (11) links to each other, just be equipped with annular boss (15) on the periphery of the bottom of sleeve (13), annular boss (15) with be located annular groove (101) sliding fit on compression cylinder (10) inner wall, be equipped with connecting axle (16) on the inner of the diapire of sleeve (13), be equipped with on the tip of connecting axle (16) and press seat (17), press and seted up mushroom groove (171) on seat (17), the one end of rack (21) with sleeve (13) link to each other.
2. The cardiovascular expansion apparatus of claim 1, wherein the damping mechanism further comprises a third spring (90), the third spring (90) is sleeved on the sleeve (13), one end of the third spring (90) is connected with the annular boss (15), and the other end of the third spring (90) is connected with the bottom wall of the annular groove (101).
3. The cardiovascular expansion device according to claim 2, wherein the damping mechanism further comprises a rubber column (3), one end of the rubber column (3) is connected with the bottom of the compression cylinder (10), one end of the rubber column (3) is located in the inner hole of the annular plate (60), and the other end of the rubber column (3) extends into the mushroom groove (171) and is in fit connection with the mushroom groove (171).
4. The cardiovascular dilating device of claim 3, wherein a plurality of supporting columns (4) are embedded in the rubber column (3), the supporting columns (4) comprise a bottom column (41), the bottom column (41) is located in the cylinder (31) of the rubber column (3), a thick column (42) and a hemisphere (43) which are connected in sequence are arranged at the end part of the bottom column (41), and the thick column (42) and the hemisphere (43) are located in the mushroom head (32) of the rubber column (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893071.1A CN110478605B (en) | 2019-09-20 | 2019-09-20 | Cardiovascular expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893071.1A CN110478605B (en) | 2019-09-20 | 2019-09-20 | Cardiovascular expansion device |
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| CN110478605A CN110478605A (en) | 2019-11-22 |
| CN110478605B true CN110478605B (en) | 2021-08-13 |
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| CN201910893071.1A Active CN110478605B (en) | 2019-09-20 | 2019-09-20 | Cardiovascular expansion device |
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| CN204961676U (en) * | 2015-10-10 | 2016-01-13 | 唐哲敏 | Varistor buddhist nun's cylinders such as elasticity such as two -way |
| CN206444013U (en) * | 2016-10-20 | 2017-08-29 | 天津市南开医院 | A kind of cystic duct device for spreading |
| CN207575197U (en) * | 2017-05-21 | 2018-07-06 | 曹晶 | A kind of dynamic cardiovascular expansion device |
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