CN217761253U - Noise reduction structure for air bag type external counterpulsation - Google Patents
Noise reduction structure for air bag type external counterpulsation Download PDFInfo
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- CN217761253U CN217761253U CN202221874495.7U CN202221874495U CN217761253U CN 217761253 U CN217761253 U CN 217761253U CN 202221874495 U CN202221874495 U CN 202221874495U CN 217761253 U CN217761253 U CN 217761253U
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Abstract
The invention discloses a noise reduction structure for air bag type external counterpulsation, which comprises a machine shell, a noise source and sound absorption cotton, wherein the noise source and the sound absorption cotton are arranged in the machine shell; the casing include set up in outermost ABS plastics, laminating at the sound insulation formula reinforcing plate of ABS plastics inner wall and fix the first sound absorption cotton on sound insulation formula reinforcing plate. According to the external counterpulsation device, the sound insulation type reinforcing plate and the first sound absorption cotton are arranged on the machine shell, so that the external counterpulsation device has a good noise reduction effect, meanwhile, the noise reduction effect of the external counterpulsation device is further improved by performing targeted noise reduction and shockproof treatment on a noise source in the machine shell, the production cost is further reduced, and the external counterpulsation device is worth of being widely popularized.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a noise reduction structure for air bag type external counterpulsation.
Background
The air bag type extracorporeal counterpulsation system is a system for non-invasive treatment of cardiovascular and cerebrovascular ischemic diseases, and the system synchronously controls air bags to sequentially pressurize on crus, thighs and buttocks through electrocardiosignals, so that blood is intensively perfused into the upper half body in diastole, thereby promoting blood perfusion of important trachea and improving the symptom of insufficient blood supply of coronary artery of human body. The air bag type external counterpulsation system is driven by pressurizing an air compressor and combining with the pipeline control of a relevant electromagnetic valve and the control of a relevant signal acquisition and circuit to ensure that the air bag realizes air suction and air blowing.
The air compressor, the electromagnetic valve and the fan arranged in the air bag type external counterpulsation system are main noise sources, the air bag type external counterpulsation system generates noise when working to seriously pollute the indoor treatment atmosphere, and part of noise reduction parts are inconvenient to maintain, so that the noise reduction structure for the air bag type external counterpulsation is provided.
Disclosure of Invention
The invention aims to solve the problem that the treatment atmosphere of a patient is influenced by overlarge noise generated when an external counterpulsation treatment instrument in the prior art is used, and provides a noise reduction structure for air bag type external counterpulsation.
In order to achieve the purpose, the invention adopts the following technical scheme: a noise reduction structure for air bag type external counterpulsation comprises a machine shell, a noise source and sound absorption cotton, wherein the noise source and the sound absorption cotton are arranged in the machine shell; the casing include set up in outermost ABS plastics, laminating at the sound insulation formula reinforcing plate of ABS plastics inner wall and fix the first sound absorption cotton on sound insulation formula reinforcing plate.
Furthermore, the noise source comprises an air compressor, an electromagnetic valve and a fan, wherein the electromagnetic valve and the fan are installed on the valve body, the air compressor is located at one end of the machine shell, the fan is located at the other end of the machine shell, and the air compressor is located between the electromagnetic valve and the fan.
Furthermore, two partition plates are arranged between the air compressor and the electromagnetic valve, the two partition plates are both arranged on the casing, and an air storage tank fixed in the casing is arranged between the two partition plates.
Furthermore, second sound-absorbing cotton is arranged on each of the two partition plates and is also arranged above the air compressor; the second sound-absorbing cotton is of a blocky structure, and the end surface facing the noise is of an array type raised frustum structure; the second sound-absorbing cotton is arranged corresponding to the electromagnetic valve and the air compressor respectively.
Furthermore, a first silencer is arranged between the partition plate and the electromagnetic valve and is connected with the air inlet end of the air compressor through a pipeline.
Furthermore, the air suction end and the air blowing end of the air compressor are both connected to the air storage tank through pipelines; one side of the air compressor is provided with a frequency converter, and the frequency converter, the air compressor and the valve body are all installed on the machine shell through supporting pieces.
Furthermore, the air compressor is fixed on the supporting piece through an installation base, an elastic shockproof pad is installed on the installation base, and a plurality of columnar sound-absorbing cotton which are uniformly distributed are installed on the elastic shockproof pad.
Furthermore, the electromagnetic valve and the valve body are detachably arranged, vent pipes are arranged at two ends of the valve body, and the valve body is connected with a vent end of a gas storage tank through the vent pipes; the breather pipe on install the pipe box formula and inhale the sound cotton.
Furthermore, a second silencer is mounted at the exhaust end of the valve body through a threaded connector, the second silencer and the threaded connector are of an integrated structure, and an external thread connecting pipe is detachably connected to the second silencer through the inner wall of the threaded connector; one end face of the external thread connecting pipe is provided with a driving clamping groove, the other end face of the connecting rod is provided with one end of a detachable connecting rod, the other end of the connecting rod penetrates through the annular sound-absorbing cotton pad to be installed on the annular ventilation plate, and the annular sound-absorbing cotton pad is located inside the second silencer.
Furthermore, the fan is located above the second fan and below the first fan, and the power of the first fan is greater than that of the second fan.
The invention has the following beneficial effects:
1. according to the invention, the casing is formed by mutually laminating the ABS plastic, the sound insulation reinforcing plate and the first sound absorption cotton, so that the casing not only meets the strength requirement, but also has a good noise reduction effect, and the integral quality of the casing is not remarkably improved due to the addition of noise reduction equipment.
2. According to the invention, targeted noise reduction treatment is carried out on a noise source in a machine shell, wherein an air inlet of an air pump is subjected to noise reduction treatment through a first silencer, vibration and noise generated during the operation of the air pump are subjected to primary noise reduction treatment through an anti-seismic gasket and columnar sound-absorbing cotton arranged on an installation base, and then are subjected to noise reduction treatment through blocky sound-absorbing cotton positioned below an air compressor and first sound-absorbing cotton, second sound-absorbing cotton and a sound-insulating type reinforcing plate positioned in the machine shell; wherein solenoid valve and fan also adopt the first sound cotton of inhaling that is located the casing inside, the second is inhaled cotton and sound insulation formula reinforcing plate and is carried out noise reduction, still is provided with the second silencer on the valve body of solenoid valve installation and installs the cubic on the support piece of valve body below and inhale the cotton and carry out further noise reduction to the valve body.
3. According to the invention, the external thread connecting pipe in the second silencer is detachably designed, the external thread connecting pipe is provided with the driving clamping groove, so that the external thread connecting pipe is convenient to rotate and realize detachment and installation, and the annular sound-absorbing cotton pad in the second silencer is convenient to replace and maintain by detaching and installing the external thread connecting pipe, so that the second silencer has a good noise reduction effect.
Drawings
FIG. 1 is a schematic structural diagram of a noise reduction structure for balloon-type external counterpulsation according to the present invention;
FIG. 2 is a bottom view of a noise reduction structure for balloon-type external counterpulsation according to the present invention;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 2;
FIG. 4 is an enlarged view at C of FIG. 3;
FIG. 5 is a partial schematic structural view of a noise reduction structure for balloon-type external counterpulsation according to the present invention;
FIG. 6 is a partial schematic structural view of a noise reduction structure for balloon-type external counterpulsation according to the present invention;
FIG. 7 is a schematic structural view of a muffler of a noise reduction structure for balloon-type external counterpulsation according to the present invention;
FIG. 8 is a bottom view of a muffler of a noise reduction structure for balloon-type external counterpulsation according to the present invention;
FIG. 9 is a front view of a muffler of a noise reduction structure for balloon-type external counterpulsation according to the present invention;
FIG. 10 isbase:Sub>A cross-sectional view taken at A-A of FIG. 9;
fig. 11 is an enlarged view of fig. 10 at D.
Illustration of the drawings:
1. a housing; 11. a sound-insulating reinforcing plate; 111. a first sound absorbing cotton; 112. the second sound-absorbing cotton; 113. block-shaped sound-absorbing cotton; 114. columnar sound-absorbing cotton; 12. a partition plate; 2. A circuit board cover plate; 3. a vehicle bottom plate; 31. a mute caster; 41. a first fan; 42. a second fan; 5. A frequency converter; 51. a filter; 6. A support member; 61. an elastic anti-vibration pad; 62. installing a base; 63. an air compressor; 64. a middle support plate; 641. an anti-seismic gasket; 7. a gas storage tank; 71. a first muffler; 8. A valve body; 81. a second muffler; 811. an annular vent plate; 812. an annular boss; 813. an annular sound-absorbing cotton pad; 815. a threaded connector; 82. a breather pipe; 821. pipe sleeve type sound absorption cotton; 83. an electromagnetic valve; 9. an external thread connecting pipe; 91. a drive card slot; 911. a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-11, one embodiment of the present invention is provided: a noise reduction structure for air bag type external counterpulsation comprises a machine shell 1 and a circuit board cover plate 2 arranged at the upper end of the machine shell 1, wherein the machine shell 1 comprises ABS plastic arranged at the outermost layer, a sound insulation type reinforcing plate 11 attached to the inner wall of the ABS plastic and sound absorption cotton fixed on the sound insulation type reinforcing plate 11;
a noise source is also arranged in the shell 1;
the noise source comprises a fan, an air compressor 63 and an electromagnetic valve 83;
the fan is positioned at one end part of the shell 1 and is positioned at one side of the circuit board cover plate 2;
the fans comprise a second fan 42 positioned above and a first fan 41 positioned below, and the power of the first fan 41 is greater than that of the second fan 42;
the sound insulation type reinforcing plate 11 is positioned between ABS plastic and sound absorption cotton;
the sound absorption cotton comprises first sound absorption cotton 111, second sound absorption cotton 112, block sound absorption cotton 113, columnar sound absorption cotton 114, annular sound absorption cotton pads 813 and pipe sleeve type sound absorption cotton 821, wherein the first sound absorption cotton 111 is of a plate-shaped structure and is matched with the sound insulation type reinforcing plate 11 in size;
the second sound-absorbing cotton 112 is of a block structure, and the end surface facing the noise is of an array type convex frustum structure;
the second sound-absorbing cotton 112 is distributed outside the air compressor 63;
the air compressor 63 is fixed at the bottom end of the machine shell 1 through a supporting piece 6;
the bottom end of the shell 1 is provided with a vehicle bottom plate 3 with a mute caster 31;
a frequency converter 5 is arranged in the machine shell 1 through a support piece 6;
the front side and the rear side of the frequency converter 5 are both provided with filters 51;
the frequency converter 5 is positioned at one side of the air compressor 63, and two partition plates 12 are arranged at the other side of the air compressor 63;
the partition boards 12 are fixed inside the machine case 1, and the two partition boards 12 are respectively provided with a second sound-absorbing cotton 112, and the second sound-absorbing cotton 112 is respectively arranged corresponding to the electromagnetic valve 83 and the air compressor 63;
an air storage tank 7 fixed in the machine shell 1 is arranged between the two partition plates 12, the air storage tank 7 is connected with an air suction end and an air blowing end of the air compressor 63 through pipelines, and the air storage tank 7 is also connected with a vent pipe 82 arranged on the valve body 8 through a pipeline;
the vent pipe 82 and the valve body 8 are detachably mounted, and pipe sleeve type sound absorbing cotton 821 is mounted on the vent pipe (82) positioned at two side ends of the valve body 8;
two electromagnetic valves 83 are arranged on one end face of the single valve body 8, and two partition plates 12 are positioned between the electromagnetic valves 83 and the air compressor 63;
the electromagnetic valve 83 and the vent pipe 82 are not coplanar;
the valve of the electromagnetic valve 83 is positioned in the valve body 8 and controls the opening and closing of the vent pipe 82;
the other end surface of the valve body 8 is provided with a second muffler 81, and the second muffler 81 is arranged at the exhaust port of the valve body 8 through a threaded connector 815;
the second muffler 81 and the threaded connector 815 are of an integrated structure, and the upper end and the lower end of the second muffler 81 are both circular;
the threaded connector 815 is a boss with the caliber smaller than that of the second muffler 81, and the end face of the threaded connector is of an annular structure;
the inner wall of the threaded connector 815 is provided with an external thread connecting pipe 9 with matched size and shape;
a driving clamping groove 91 is formed in one end face of the external thread connecting pipe 9;
the other end face of the external thread connecting pipe 9 is provided with one end of a detachable connecting rod 911;
the connecting rods 911 are distributed on the end face of the external thread connecting pipe 9 in an annular array, and the number of the connecting rods 911 is six;
the other end of the connecting rod 911 penetrates through an annular sound absorption cotton pad 813 and is installed on an annular ventilation plate 811;
the end surface of the annular vent plate 811 is provided with vent holes which are uniformly distributed, and the edge of the annular vent plate is provided with an annular convex part 812 with the same outer diameter;
the annular ventilation plate 811 is positioned inside the second muffler 81, an annular sound absorption cotton pad 813 is arranged on one end face of the annular ventilation plate 811, and the annular convex part 812 is positioned on the other end face of the annular ventilation plate 811;
one side of the second muffler 81 is provided with a first muffler 71 arranged in the machine shell 1, and the other side is provided with a support member 6;
the first muffler 71 is positioned between the partition plate 12 and the electromagnetic valve 8, the first muffler 71 is of a pipe barrel structure, the caliber of the air inlet end is larger than that of the air outlet end, and a plurality of annular sound absorption cotton pads 813 are arranged in the first muffler 71;
the first muffler 71 is an air inlet muffler of the air compressor 63, and air in the casing 1 enters the air compressor 63 through the first muffler 71;
the number of the supporting pieces 6 is three, and the three supporting pieces are respectively distributed below the valve body 8, the air compressor 63 and the frequency converter 5;
the supporting piece 6 positioned below the valve body 8 is of a bent plate-shaped structure, and the supporting piece 6 is shaped like a Chinese character 'ji';
an anti-seismic gasket 641 is arranged at the installation position of the supporting piece 6 and the machine shell 1;
the supporting piece 6 is provided with an intermediate supporting plate 64;
the block-shaped sound absorption cotton 113 is arranged on the middle support plate 64;
be located air compressor 63 below support piece 6 and air compressor 63 between install installation base 62, installation base 62 with be located air compressor 63 below support piece 6 between install elasticity antivrbration pad 61, elasticity antivrbration pad 61 on install a plurality of columns that distribute evenly and inhale sound cotton 114.
In the invention, the noise sources in the machine shell 1 are an air compressor 63, an electromagnetic valve 83 and a fan, the related noise reduction parts are provided with first sound absorption cotton 111 arranged on a sound insulation type reinforcing plate 11, the noise generated in the machine shell 1 can be reduced by arranging the first sound absorption cotton 111 on the upper part of the machine shell 1, meanwhile, the quality of the machine shell 1 cannot be obviously increased, the machine shell 1 has excellent sound insulation effect under the action of the sound insulation type reinforcing plate 11, and the first sound absorption cotton 111 is used as the last noise reduction treatment mode;
the air compressor 63 is fixed on the supporting piece 6 below the air compressor through the mounting base 62, and vibration generated at the bottom end of the air compressor 63 and noise produced at the bottom end are subjected to damping and noise reduction treatment through the mounting elastic shockproof pad 61 and the columnar sound-absorbing cotton 114 mounted on the elastic shockproof pad 61 on the mounting base 62; when the air compressor 63 blows air into the interior of the machine shell 1, the air to be blown in enters the interior of the air compressor 63 through the first silencer 71, and the first silencer 71 performs noise reduction treatment on the intake air of the air compressor 63; the second sound absorption cotton 112 and the first sound absorption cotton 111 are arranged at the side end of the air compressor 63, and noise reduction treatment is carried out on noise generated inside the air compressor 63; a block-shaped sound absorption cotton 113 is arranged on the support member 6 arranged on the air compressor 63, and noise reduction treatment is carried out on noise transmitted by the support member 6;
the fan is arranged at one end of the machine shell 1 and is positioned in the machine shell 1, the first sound absorption cotton 111 and the second sound absorption cotton 112 are arranged at the side end of the fan to perform noise reduction treatment on the fan, and meanwhile, the first sound absorption cotton 111 and the second sound absorption cotton 112 can absorb dust blown into the machine shell 1 by the fan;
two electromagnetic valves 83 are installed at one end of the single valve body 8, wherein one electromagnetic valve 83 controls the opening and closing of the air intake state of the air pipe 82, and the other electromagnetic valve 83 controls the opening and closing of the air exhaust state of the air pipe 82; pipe sleeve type sound absorbing cotton 821 is installed on the ventilating pipes 82 installed at the two side ends of the valve body 8, and noise reduction treatment is carried out on the ventilating pipes 82 at the two side ends of the valve body 8; a second silencer 81 is installed at the exhaust port of the valve body 8, and the second silencer 81 performs noise reduction treatment on the valve body 8 during exhaust by enlarging the exhaust port and additionally arranging an annular sound absorption cotton pad 813 inside; the supporting piece 6 below the valve body 8 is also provided with block-shaped sound absorption cotton 113 for noise reduction and sound absorption treatment of noise frequency transmitted on the supporting piece 6; noise generated when the solenoid valve 83 operates is reduced by the first sound absorption cotton 111 installed on the soundproof reinforcement plate 11 and the partition plate 12, thereby providing the cabinet 1 with an excellent soundproof effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A noise reduction structure for air bag type external counterpulsation is characterized in that: the noise-absorbing sound-absorbing material comprises a machine shell (1), a noise source and sound-absorbing cotton, wherein the noise source and the sound-absorbing cotton are arranged in the machine shell (1), the sound-absorbing cotton is arranged at a generating end of the noise source, and the sound-absorbing cotton comprises first sound-absorbing cotton (111), second sound-absorbing cotton (112), blocky sound-absorbing cotton (113), columnar sound-absorbing cotton (114), an annular sound-absorbing cotton pad (813) and pipe sleeve type sound-absorbing cotton (821);
the casing (1) comprises ABS plastic arranged on the outermost layer, a sound insulation type reinforcing plate (11) attached to the inner wall of the ABS plastic and first sound absorption cotton (111) fixed on the sound insulation type reinforcing plate (11).
2. The noise reduction structure for balloon-type external counterpulsation according to claim 1, wherein: the noise source include air compressor (63), install solenoid valve (83) and the fan on valve body (8), air compressor (63) be located the one end of casing (1), the fan be located the other end of casing (1), air compressor (63) be located between solenoid valve (83) and the fan.
3. A noise reducing structure for balloon-type external counterpulsation according to claim 2, wherein: the air compressor is characterized in that two partition plates (12) are arranged between the air compressor (63) and the electromagnetic valve (83), the two partition plates (12) are installed on the machine shell (1), and an air storage tank (7) fixed inside the machine shell (1) is arranged between the two partition plates (12).
4. A noise reducing structure for balloon-type external counterpulsation according to claim 3, wherein: the two partition plates (12) are respectively provided with a second sound-absorbing cotton (112), and the second sound-absorbing cotton (112) is also arranged above the air compressor (63);
the second sound-absorbing cotton (112) is of a block structure, and the end surface facing the noise is of an array type raised frustum structure;
the second sound absorption cotton (112) is respectively arranged corresponding to the electromagnetic valve (83) and the air compressor (63).
5. The noise reduction structure for balloon-type external counterpulsation according to claim 4, wherein: a first silencer (71) is arranged between the partition plate (12) and the electromagnetic valve (83), and the first silencer (71) is connected with the air inlet end of the air compressor (63) through a pipeline.
6. The noise reduction structure for balloon external counterpulsation according to claim 5, wherein: the air suction end and the air blowing end of the air compressor (63) are connected to the air storage tank (7) through pipelines;
one side of the air compressor (63) is provided with a frequency converter (5), and the frequency converter (5), the air compressor (63) and the valve body (8) are all installed on the machine shell (1) through a supporting piece (6).
7. The noise reduction structure for balloon external counterpulsation according to claim 6, wherein: air compressor (63) fix on support piece (6) through installation base (62), installation base (62) on install elasticity antivrbration pad (61), elasticity antivrbration pad (61) on install a plurality of columns that distribute evenly and inhale sound cotton (114).
8. The noise reduction structure for balloon external counterpulsation according to claim 7, wherein: the electromagnetic valve (83) and the valve body (8) are detachably arranged with each other, both ends of the valve body (8) are provided with vent pipes (82), and the valve body (8) is connected with a vent end of the gas storage tank (7) through the vent pipes (82);
the ventilating pipe (82) is provided with pipe sleeve type sound absorbing cotton (821).
9. The noise reduction structure for balloon external counterpulsation according to claim 8, wherein: a second silencer (81) is mounted at the exhaust end of the valve body (8) through a threaded connector (815), the second silencer (81) and the threaded connector (815) are of an integrated structure, and the second silencer (81) is detachably connected with an external thread connecting pipe (9) through the inner wall of the threaded connector (815);
the one end face of external screw thread connecting pipe (9) be equipped with drive slot (91), the one end of detachable connecting rod (911) is installed to another terminal surface, the other end of connecting rod (911) run through the annular and inhale cotton pad (813) of sound and install on annular breather plate (811), the annular is inhaled cotton pad (813) of sound and is located the inside of second silencer (81).
10. The noise reduction structure for balloon-type external counterpulsation according to claim 9, wherein: the fan is located the second fan (42) of top and is located the first fan (41) of below, and the power of first fan (41) is greater than the power of second fan (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221874495.7U CN217761253U (en) | 2022-07-21 | 2022-07-21 | Noise reduction structure for air bag type external counterpulsation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221874495.7U CN217761253U (en) | 2022-07-21 | 2022-07-21 | Noise reduction structure for air bag type external counterpulsation |
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| Publication Number | Publication Date |
|---|---|
| CN217761253U true CN217761253U (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221874495.7U Active CN217761253U (en) | 2022-07-21 | 2022-07-21 | Noise reduction structure for air bag type external counterpulsation |
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| Country | Link |
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| CN (1) | CN217761253U (en) |
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2022
- 2022-07-21 CN CN202221874495.7U patent/CN217761253U/en active Active
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