CN113847503B - Silencing mechanism suitable for near-mouth spray suction device - Google Patents
Silencing mechanism suitable for near-mouth spray suction device Download PDFInfo
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- CN113847503B CN113847503B CN202010598946.8A CN202010598946A CN113847503B CN 113847503 B CN113847503 B CN 113847503B CN 202010598946 A CN202010598946 A CN 202010598946A CN 113847503 B CN113847503 B CN 113847503B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 230000030279 gene silencing Effects 0.000 title claims abstract description 25
- 239000007921 spray Substances 0.000 title claims abstract description 18
- 238000005452 bending Methods 0.000 claims abstract description 20
- 238000013016 damping Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000003584 silencer Effects 0.000 claims description 2
- 230000001743 silencing effect Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000968 medical method and process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/06—Saliva removers; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/06—Implements for therapeutic treatment
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
- F16L43/02—Bends; Siphons adapted to make use of special securing means
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pivots And Pivotal Connections (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a silencing mechanism suitable for a near-mouth spray suction device, which is characterized by comprising a resistance silencing part for reducing noise of an air inlet; the resistive muffler is a bending direction adjustable cavity, the resistive muffler includes: a front connector; a rear connecting member; the angle adjusting piece is bent and connected between the front connecting piece and the rear connecting piece, and the included angle between the front connecting piece and the rear connecting piece is adjusted; the front locking piece is used for adjusting the damping size of the front connecting piece and the front locking piece; the rear locking piece is used for adjusting the damping size of the rear connecting piece and the front locking piece; wherein the angle adjusting member is rotatably coupled to the rear link member, and the angle adjusting member is rotatably coupled to the front link member. The invention discloses a silencing mechanism suitable for a spray suction device beside a mouth, which has good silencing effect and is necessary.
Description
Technical Field
The invention relates to a device for collecting and treating oral colonies such as spray and the like, in particular to a silencing mechanism of a spray suction device beside a mouth.
Background
When in oral surgery, the device for sucking the spray beside the mouth is arranged beside an operating table, sucks and collects gas generated by breathing, spray generated during surgery and the like, and can avoid the cross of the gas generated between medical staff and patients during surgery, thereby causing disease infection and the like. The gas collecting port of the device is arranged beside the mouth of a patient, so that certain noise can be generated, and when the noise is large, the communication of medical staff during operation, the comfort level of operation and the like can be influenced to a great extent; the device is thus provided with a silencing mechanism at the gas inlet, while the flexibility of the silencing mechanism adjustment also affects the operation of the medical personnel.
Therefore, the silencer is convenient to adjust, good in silencing effect and necessary for being applicable to the spray suction device beside the mouth.
Summary of the invention
The invention aims to provide a silencing mechanism which has good silencing effect and high flexibility and is suitable for a spray suction device at the mouth, the invention is realized in such a way that the silencing mechanism is suitable for the spray suction device at the mouth,
The mechanism includes a resistance sound attenuation portion for reducing air inlet noise; the resistive muffler is a bending direction adjustable cavity, the resistive muffler includes:
a front connector;
A rear connecting member;
the angle adjusting piece is bent and connected between the front connecting piece and the rear connecting piece, and adjusts the corresponding angle between the front connecting piece and the rear connecting piece;
the front locking piece is used for adjusting the damping size of the front connecting piece and the front locking piece;
the rear locking piece is used for adjusting the damping size of the rear connecting piece and the front locking piece;
Wherein the angle adjusting member is rotatably coupled to the rear link member, and the angle adjusting member is rotatably coupled to the front link member.
The front connecting piece comprises a front connecting end face, the angle adjusting piece comprises an adjusting main body, an adjusting front end face and an adjusting rear end face, the adjusting front end face is arranged in a non-parallel mode with the adjusting rear end face, the adjusting front end face is annular, the front connecting end face is arranged in a circular mode corresponding to the adjusting front end face, and the adjusting front end face and the front connecting end face are in pressure connection.
The front locking piece comprises a front adjusting screw and a front fixing column,
One end of the front adjusting screw is provided with a handle, and the other end of the front adjusting screw penetrates through the front connecting piece to be connected with the fixed column.
The front connecting piece is in a spherical crown shape and comprises a circular front connecting end face and a front screw hole matched with a front adjusting screw for use; the angle adjusting piece comprises an adjusting front end face which is arranged corresponding to the front connecting end face and is in a circular ring shape;
The middle part of the fixed column is provided with a front screw hole, and the two ends of the fixed column are fixedly connected with the angle adjusting piece;
One end of the front adjusting screw penetrates through the front screw hole to be connected to the fixed column, so that the front connecting piece can rotate around the front adjusting screw at any angle.
The mechanism also comprises a plane bearing, a front bearing surface is arranged between the front screw hole and the front adjusting screw, and the plane bearing is arranged between the front adjusting screw and the front connecting piece.
The mechanism further comprises a front annular guide rail, the angle adjusting piece and the front connecting piece are correspondingly provided with front annular guide grooves respectively, and the front annular guide rails are respectively arranged in the front annular guide grooves.
The mechanism also comprises a resistive silencing part, and the resistive silencing part and the front connecting end face are arranged in a non-perpendicular mode.
The resistive muffler comprises an outer tube and a material muffler body in tubular arrangement, and the material muffler body is sleeved in the outer tube.
The resistive muffler further comprises an inlet part which is wide-mouth, the inlet part comprises a wide-mouth, a separation net and a clamping position which are integrally formed, the front part of the clamping position is provided with an anti-over tight position and a flat sealing groove for setting colloid, the clamping position is clamped with the inner wall of the outer tube, and the tight position is tightly propped against the front end of the sleeve and fixes the material muffler.
The angle adjusting piece and the front connecting piece are connected in a sealing way through the front annular guide groove and the front annular guide rail.
The rear locking piece comprises a rear adjusting screw and a rear fixing column,
One end of the rear adjusting screw is provided with a handle, and the other end of the rear adjusting screw passes through the rear connecting piece and is connected with the fixed column.
The rear connecting piece comprises a circular rear connecting end face and a rear screw hole matched with the rear adjusting screw; the angle adjusting piece further comprises an adjusting rear end face which is arranged corresponding to the rear connecting end face and is in a circular ring shape;
the middle part of the fixed column is provided with a rear screw hole, and two ends of the fixed column are fixedly connected with the angle adjusting piece;
One end of the rear adjusting screw penetrates through the rear screw hole to be connected to the fixed column, so that the rear connecting piece can rotate around the rear adjusting screw at any angle.
An obtuse angle of a fixed angle is formed between the front adjusting screw and the rear adjusting screw.
The mechanism further comprises a plane bearing, a rear bearing surface is further arranged between the rear screw hole and the rear adjusting screw, and the plane bearing is arranged between the rear adjusting screw and the rear screw hole.
The mechanism further comprises a rear annular guide rail, the angle adjusting piece and the rear connecting piece are correspondingly provided with rear annular guide grooves respectively, and the rear annular guide rails are respectively arranged in the rear annular guide grooves.
The rear annular guide groove and the rear annular guide rail enable the angle adjusting piece and the rear connecting piece to be connected in a sealing mode.
Advantageous effects
The silencing mechanism suitable for the near-mouth spray suction device has the advantages of being flexible in connection joint and ideal in noise reduction function, and combining silencing with dexterity, so that the silencing mechanism is good in use and practical.
The connecting mechanism provided by the invention has the advantages that the axisymmetric spherical structure is fused, so that the connecting mechanism has wide adaptability, less constraint, attractive appearance and flexible structural design when the opposite surfaces of the spherical structure are subjected to rotation and other adjustment. The two independent movable joints which are required to be connected together and can rotate relatively can be realized through the coincidence of any two surfaces of the circle centers, and the inclination angles of the two opposite circular surfaces can have larger arbitrary property, so that the angle adjustment can have larger universality. The front locking piece, the angle adjusting piece and the rear connecting piece are connected with each other continuously through the three joints, and the connecting surfaces are connected with each other through the opposite round surfaces, so that the adjustable angle has larger universality.
The front locking piece provided by the invention can adjust the tightness between the front connecting piece and the angle adjusting piece, the rear locking piece can adjust the tightness between the rear connecting piece and the angle adjusting piece, and an operator can adjust the tightness according to own preference in the use process of the device so as to adapt to the preference requirement of individuals for exerting effort during angle adjustment; the corresponding joints can be further locked, so that the movable joints have priority when the angle is adjusted; and may lock a joint to its non-rotational motion.
The front locking piece is formed by combining the front adjusting screw and the front fixing column, and is matched with the angle adjusting piece and the front connecting piece for use. The front adjusting screw is arranged on the radius of the sphere formed by the connection part of the front connecting piece and the angle adjusting piece, the rotation of the front connecting piece is carried out around the front adjusting screw, and the angle rotating mechanism has the characteristic that the rotation angle is not restrained, so that the angle rotating mechanism can rotate infinitely.
The invention reduces the friction force between the front adjusting screw and the angle adjusting piece by arranging the front plane bearing, increases the friction system of the contact surface of the front adjusting screw and the angle adjusting piece, and increases the stress adjusting section.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a cross-sectional view of the inventive structure.
Fig. 3 is a schematic perspective view of a partial structure of the present invention.
Fig. 4 is a schematic perspective view of a partial structure of the present invention.
Fig. 5 is an exploded view of the inventive structure.
Fig. 6 is a cross-sectional view of a partial structure created by the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention disclosed herein without departing from the scope of the invention.
In the description of the invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience in describing the invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention will be understood in a specific case by those skilled in the art.
The silencing mechanism suitable for the spray suction device beside the mouth provided by the invention has higher dexterity while ensuring silencing. The mechanism includes a resistive muffler 100 for reducing intake noise; the converging structure 101 and the expanding structure 102 of the pipe section of the resistive muffler 100 enable the air flow flux in the same space to be different under the same time by the converging structure 101 and the expanding structure 102 so as to change the sound propagation frequency and achieve the purpose of noise reduction. Preferably, the rotating mechanism is convenient to set on a pipeline section with larger air flow of the resistance noise reduction pipeline, so that the noise reduction effect is small, and the structure and the assembly are convenient; therefore, the mechanism for adjusting the angle is arranged on the section of the pipeline, and the device also has the advantages of relatively easy production and demolding process, lower cost, good use stability, high structural strength and the like. The resistive muffler 100 includes at least a front locking member 1011, a front connecting member 2, and an angle adjusting member 4; the angle adjusting piece 4 is in a bent pipe shape, and the front connecting piece 2 and the rear connecting piece 3 form a turn with bending degree after passing through the angle adjusting piece 4; the size of the turn is dependent on the angular adjustment of the angular adjustment member 4. By setting the camber, when the angle adjusting piece 4 rotates, the conversion of the front joint and the rear joint in the position of the angle turning in space can be correspondingly adjusted, and then the angle turning between the front connecting piece and the pipeline and the angle turning between the rear connecting piece and the pipeline are matched, so that the invention has flexibility.
The present invention provides a preferred embodiment, wherein the front connecting piece 2 with a bending structure is matched with the angle adjusting piece 4, the angle adjusting piece 4 and the front connecting piece 2 respectively have bending, the front connecting piece 2 has a first bending direction relative to the angle adjusting piece 4, the angle adjusting piece 4 or the front connecting piece 2 has a second bending direction when being rotated, and the angle adjusting piece 4 or the front connecting piece 2 rotates to the second bending direction through the first bending direction, so that the requirement is adjusted by a proper angle.
The invention provides a preferred embodiment, wherein the rear connecting piece 3 with a bending structure is matched with the angle adjusting piece 4, the angle adjusting piece 4 and the rear connecting piece 3 respectively have bending, the rear connecting piece 3 has a third bending direction relative to the angle adjusting piece 4, the angle adjusting piece 4 or the rear connecting piece 3 has a fourth bending direction when being rotated, and the angle adjusting piece 4 or the rear connecting piece 3 rotates to the fourth bending direction through the third bending direction so as to adjust the requirement by a proper angle.
The combination of the first bending direction, the second bending direction, the third bending direction and the fourth bending direction enables the invention to have high flexibility and adaptability, and can improve the application matching degree of products.
As a preferred solution, the present invention proposes a front locking member 1011 for adjusting the damping amount of the front connecting member 2 and the angle adjusting member 4; the angle adjusting piece 4 is connected between the front connecting piece 2 and the rear connecting piece 3, the included angle between the front connecting piece 2 and the rear connecting piece 3 can be adjusted, and the angle adjusting piece 4 and the front connecting piece 2 are fixed together through the front locking piece 1011. The damping is adjusted through rotating the front locking piece 1011, so that the angle adjusting force is correspondingly adjusted to adapt to the personalized requirement of the adjusting force, and the real-time angle adjustment and fixation are achieved; when adjusted to the proper angle, the angle can be fixed in an unadjustable manner, i.e., the front locking member 1011 can be rotated to increase the resistance, the joint angle can be fixed, and the angle of the joint can be prevented from being adjusted so that the front connecting member 2 and the angle adjusting member 4 cannot rotate relatively.
The angle adjusting member 4 is rotatably coupled to the rear link 3. The angle adjusting piece 4 is connected with the rear connecting piece 3, and the connection part can relatively rotate to adjust the angle.
The angle adjusting member 4 is rotatably coupled to the rear link 3. The angle adjusting piece 4 is connected with the rear connecting piece 3, and the connection part can relatively rotate to adjust the angle.
As an embodiment, the rear locking member 1021 is used to adjust the damping of the rear connecting member 3 and the front locking member 1011. The angle adjusting member 4 is rotatably coupled to the front coupling member 2. Namely, the end face of the angle adjusting member 4 connected with the front connecting member 2 can relatively rotate.
The front connecting piece 2 comprises a front connecting end face 21, the angle adjusting piece 4 comprises an adjusting main body, an adjusting front end face 41 and an adjusting rear end face 42, the adjusting front end face 41 and the adjusting rear end face 42 are arranged in a non-parallel mode, the adjusting front end face 41 is in a circular ring shape, the front connecting end face 21 is arranged in a circular ring shape corresponding to the adjusting front end face 41, and the adjusting front end face 41 and the front connecting end face 21 are in compression joint.
As a preferred solution, the front locking member 1011 includes a front adjusting screw 103 and a front fixing post 104, wherein one end of the front adjusting screw 103 is provided with a front handle 105, and the other end passes through the front connecting member 2 to be connected with the front fixing post 104. The front connecting piece 2 is in a spherical crown shape, and the front connecting piece 2 comprises a front connecting end face 21 in a circular ring shape and a front adjusting screw hole 103 matched with the front adjusting screw 103 for use; the angle adjusting piece 4 comprises an adjusting front end surface 41 which is arranged corresponding to the front connecting end surface 21 and is annular; the middle part of the front fixing column 104 is provided with a front screw hole 22, and two ends of the front fixing column are fixedly connected with the angle adjusting piece 4; one end of the front adjusting screw 103 is connected to the front fixing post 104 through the front screw hole 22, so that the front connector 2 can rotate around the front adjusting screw 103 at any angle.
The invention provides a front locking mechanism which is matched with a front fixing column 104 through a front adjusting screw 103 and is in a T-shaped structure. Wherein, the front fixing column 104 is fixedly connected with the angle adjusting piece 4, and the front adjusting screw 103 is adjustably connected with the front fixing column 104; the handle end is matched and connected with the front connecting piece 2, so that the front connecting piece 2 can be displaced along the axial direction of the front adjusting screw through rotation adjustment, namely, the gap between the front connecting piece 2 and the angle adjusting piece 4 is adjusted through rotating the handle, the friction between the front connecting piece 2 and the angle adjusting piece 4 is adjusted, and the friction coefficient between the front connecting piece 2 and the angle adjusting piece 4 is adjusted; and the angle is adjusted by making the angle adjusting member 4 correspond to the front connecting member 2 in a positional relationship.
The angle adjustment and the damping adjustment are relatively independent. The angle adjusting piece 4 and the front connecting piece 2 realize angle adjustment, and the front locking screw is matched with the front fixing column to adjust the friction force between the angle adjusting piece 4 and the front connecting piece 2, so that the angle adjustment can be relatively independently completed, and the angle adjustment is not interfered with each other during adjustment.
In order to achieve the purpose that the friction force is more independent when the angle adjustment and the front connecting piece 2 are relatively rotated, and the front adjusting screw does not concomitantly rotate when the angle adjustment piece or the front connecting piece is rotated, and the adjustment of the damping size between the angle adjustment and the connecting piece between the handle and the front connecting piece 2 is not influenced, a front plane bearing 1012 is arranged, the plane bearing comprises a first panel, a plane bearing body and a second panel, the first panel is connected with the front connecting piece 2 in a pressing, fixing or bonding mode, the second panel is connected with the front handle 105 in a pressing, fixing or bonding mode, and the plane bearing body is arranged between the first panel and the second panel; when the front connecting piece and/or the angle adjusting piece are rotated, the plane bearing rotates relative to the first panel and the second panel, the front adjusting screw does not rotate, and the rotation friction force does not change.
As a preferential scheme, the end face of the front handle opposite to the first panel, the plane bearing body, the second panel and the end face of the second panel opposite to the angle adjusting piece are in pressure connection, the assembly is simple and convenient, the friction force between the first panel and the angle adjusting piece is large, the friction force between the first panel and the plane bearing body is small, the friction force between the second panel and the front handle 105 is large, and the friction force between the second panel and the plane bearing body is small; the front handle, the first panel front fixing piece and the angle adjusting piece synchronously rotate, and the second panel rotates along with the front connecting piece; when the angle adjusting member 4 rotates relative to the front connecting member 2, the front adjusting screw 103 rotates synchronously with the angle adjusting member 4, the angle adjusting member rotates synchronously with the second panel, and damping between the front connecting member and the angle adjusting member does not change. The front fixing post 104 and the angle adjusting member 4 are fixed together and rotate synchronously, assuming that they are the first rotating body; the front connector 2 rotates synchronously with the first panel, assuming it is a second rotating body, with which the first and second rotating bodies rotate in opposite directions; the relative rotation between the first rotating body and the second rotating body is free from interference, and great convenience is brought to the adjustment in the medical process.
Unlike the previous embodiment, a plane bearing is provided between the front screw hole 22 and the front handle, and the front adjusting screw is connected with the front fixing post after passing through the plane bearing. Is provided between the front adjusting screw 103 and the front connector 2. The front receiving surface may be connected to the front connector 2 or to the front handle 105.
The mechanism further comprises a front annular guide rail 43, a front angle adjusting guide groove 44 is arranged between the angle adjusting piece 4 and the front annular guide rail 43, a front connecting piece guide groove 22 is arranged on the front connecting piece 2 and corresponds to the front annular guide rail 43, and the front annular guide rail 43 is arranged in an annular closed cavity formed by surrounding the front angle adjusting guide groove 44 and the front connecting piece guide groove 22. The annular closed cavity is also provided with lubricant which is beneficial to the relative rotation between the front connecting piece 2 and the angle adjusting piece 4. The groove rail structure is arranged at the joint end surface of the front annular guide rail 43 and the angle adjusting piece 4, so that the smooth rotation and the stability are ensured, the end surfaces are connected, the appearance is attractive, the friction force is small, and the rotation is light; while further facilitating engagement with the front handle 105 and front fixing stud structure described above.
The mechanism also comprises a resistive silencing part 200, and the resistive silencing part 200 is arranged in a non-perpendicular mode with the front connecting end face 21. The resistive muffler portion 200 includes an outer tube and a material muffler body disposed in a tubular shape, and the material muffler body is sleeved in the outer tube. The resistive muffler 200 further includes a wide-mouth inlet 109, where the inlet 109 includes an integrally formed wide-mouth, a screen 108 and a clamping position, where the front part of the clamping position is provided with an anti-over-position abutting position 110 and a flat seal groove 111 for setting colloid, the clamping position is clamped with the inner wall of the outer tube, and the abutting position 110 abuts against the front end of the sleeve and fixes the material muffler.
The angle adjusting member 4 and the front connecting member 2 are hermetically connected by a front annular guide groove and a front annular guide rail 43.
The rear locking member 1021 comprises a rear adjusting screw 303 and a rear fixing column 304, wherein one end of the rear adjusting screw 303 is provided with a handle, and the other end passes through the rear connecting member 3 to be connected with the fixing column. The rear connecting piece 3, the rear connecting piece 3 comprises a circular rear connecting end surface and a rear screw hole matched with the rear adjusting screw 303; the angle adjusting piece 4 also comprises an adjusting rear end surface 42 which is arranged corresponding to the rear connecting end surface and is circular; the middle part of the fixed column is provided with a rear screw hole both ends are fixedly connected with the angle adjusting piece 4; one end of the rear adjusting screw 303 is connected to the fixing post through the rear screw hole, so that the rear connecting piece 3 can rotate around the rear adjusting screw 303 at any angle. The front connector 2 and the front locking member 1011 are arranged similarly to the front locking member 1011 and the front connector 2, and a detailed description of the structure is omitted.
An obtuse angle of a fixed angle is formed between the front adjusting screw and the rear adjusting screw. Included angle formed between front adjusting screw and rear adjusting screw
The mechanism also comprises a plane bearing, a rear bearing surface is arranged between the rear screw hole and the rear adjusting screw, and the plane bearing is arranged between the rear adjusting screw and the rear screw hole.
The mechanism also comprises a rear annular guide rail, the angle adjusting piece and the rear connecting piece are correspondingly provided with rear annular guide grooves respectively, and the rear annular guide rails are respectively arranged in the rear annular guide grooves.
The rear annular guide groove and the rear annular guide rail enable the angle adjusting piece and the rear connecting piece to be connected in a sealing mode.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. A silencing mechanism suitable for a near-mouth spray suction device is characterized in that,
The mechanism comprises a resistance silencing part and a resistance silencing part for reducing noise of the air inlet; the resistive muffler is a bending direction adjustable cavity, the resistive muffler includes:
The front connecting piece comprises a front connecting end face;
A rear connecting member;
The angle adjusting piece is bent and connected between the front connecting piece and the rear connecting piece, and the included angle between the front connecting piece and the rear connecting piece is adjusted; the angle adjusting piece comprises an adjusting main body, an adjusting front end face and an adjusting rear end face, wherein the adjusting front end face and the adjusting rear end face are arranged in a non-parallel mode, the adjusting front end face is annular, the front connecting end face is arranged in an annular mode corresponding to the adjusting front end face, and the adjusting front end face and the front connecting end face are in pressure connection;
The front locking piece is used for adjusting the damping size of the front connecting piece and the front locking piece; the rear locking piece is used for adjusting the damping size of the rear connecting piece and the front locking piece; the front locking piece comprises a front adjusting screw and a front fixing column, one end of the front adjusting screw is provided with a handle, and the other end of the front adjusting screw penetrates through the front connecting piece to be connected with the fixing column; the rear locking piece comprises a rear adjusting screw and a rear fixing column; one end of the rear adjusting screw is provided with a handle, and the other end of the rear adjusting screw passes through the rear connecting piece and is connected with the fixed column;
The front connecting piece is in a spherical crown shape and comprises a circular front connecting end face and a front screw hole matched with a front adjusting screw for use; the angle adjusting piece comprises an adjusting front end face which is arranged corresponding to the front connecting end face and is in a circular ring shape; the middle part of the front fixing column is provided with a front screw hole, and two ends of the front fixing column are fixedly connected with the angle adjusting piece; one end of the front adjusting screw passes through the front screw hole and is connected to the front fixing column, so that the front connecting piece can rotate around the front adjusting screw at any angle;
The rear connecting piece comprises a circular rear connecting end face and a rear screw hole matched with the rear adjusting screw; the angle adjusting piece further comprises an adjusting rear end face which is arranged corresponding to the rear connecting end face and is in a circular ring shape; the middle part of the rear fixing column is provided with a rear screw hole, and two ends of the rear fixing column are fixedly connected with the angle adjusting piece; one end of the rear adjusting screw passes through the rear screw hole and is connected to the rear fixing column, so that the rear connecting piece can rotate around the rear adjusting screw at any angle;
An obtuse angle of a fixed angle is formed between the front adjusting screw and the rear adjusting screw;
the mechanism also comprises a plane bearing, a front bearing surface is arranged between the front screw hole and the front adjusting screw, a rear bearing surface is arranged between the rear screw hole and the rear adjusting screw, and the plane bearing is respectively arranged between the front adjusting screw and the front connecting piece and between the rear adjusting screw and the rear screw hole;
Wherein the angle adjusting piece is rotatably connected with the rear connecting piece, and the angle adjusting piece is rotatably connected with the front connecting piece;
the pipeline section of the resistance sound-absorbing part is provided with a converging structure and an expanding structure, and the converging structure and the expanding structure enable the air flow flux in the same space to be different under the same time so as to change the sound propagation frequency;
The anti-noise-reducing part is arranged in a non-perpendicular mode with the front connecting end face, the anti-noise-reducing part comprises an outer tube and a material noise reducing body arranged in a tubular mode, the material noise reducing body is sleeved in the outer tube, the anti-noise-reducing part further comprises an inlet part in a wide-mouth shape, the inlet part comprises a wide mouth, a separation net and a clamping position which are integrally formed, the front part of the clamping position is provided with an anti-excessive tight position and a flat sealing groove for setting colloid, the clamping position is clamped with the inner wall of the outer tube, and the tight position is propped against the front end of the sleeve and fixes the material noise reducing body.
2. A silencing mechanism for a paraoral spray suction device as claimed in claim 1, wherein,
The mechanism also comprises a front annular guide rail, the angle adjusting piece is provided with a front angle adjusting guide groove corresponding to the annular guide rail, the front connecting piece is provided with a front connecting piece guide groove corresponding to the front annular guide rail,
The front annular guide rail is arranged in an annular closed cavity formed by surrounding the front angle adjusting guide groove and the front connecting piece guide groove.
3. A silencing mechanism for a paraoral spray suction device as claimed in claim 2, wherein,
The angle adjusting piece and the front connecting piece are connected in a sealing way through the front annular guide groove and the front annular guide rail.
4. A silencing mechanism for a paraoral spray suction device as claimed in claim 3, wherein,
The mechanism further comprises a rear annular guide rail, the angle adjusting piece and the rear connecting piece are correspondingly provided with rear annular guide grooves respectively, and the rear annular guide rails are respectively arranged in the rear annular guide grooves.
5. The silencer mechanism for a paraoral spray suction device of claim 4 wherein said rear annular channel and rear annular rail sealingly connect said angle adjustment member to said rear connector member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598946.8A CN113847503B (en) | 2020-06-28 | 2020-06-28 | Silencing mechanism suitable for near-mouth spray suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598946.8A CN113847503B (en) | 2020-06-28 | 2020-06-28 | Silencing mechanism suitable for near-mouth spray suction device |
Publications (2)
| Publication Number | Publication Date |
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| CN113847503A CN113847503A (en) | 2021-12-28 |
| CN113847503B true CN113847503B (en) | 2024-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010598946.8A Active CN113847503B (en) | 2020-06-28 | 2020-06-28 | Silencing mechanism suitable for near-mouth spray suction device |
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| Country | Link |
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Citations (4)
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|---|---|---|---|---|
| JP2009275387A (en) * | 2008-05-14 | 2009-11-26 | Shikoku:Kk | Vertical handrail |
| CN103764213A (en) * | 2011-07-08 | 2014-04-30 | 雷斯梅德有限公司 | Swivel elbow and connector assembly for patient interface systems |
| CN111297504A (en) * | 2020-03-25 | 2020-06-19 | 广州市通力生物技术有限公司 | Oral cavity droplet protection instrument |
| CN214274822U (en) * | 2020-06-28 | 2021-09-24 | 广州艾捷斯医疗器械有限公司 | Silencing mechanism suitable for other droplet suction device of mouth |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19650134A1 (en) * | 1996-12-03 | 1998-06-04 | Zubler Geraetebau | Suction arm for use in dental practice or treatment room |
| US10422457B2 (en) * | 2016-04-14 | 2019-09-24 | Medtronic Xomed, Inc. | Swivel knuckle connection |
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2020
- 2020-06-28 CN CN202010598946.8A patent/CN113847503B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009275387A (en) * | 2008-05-14 | 2009-11-26 | Shikoku:Kk | Vertical handrail |
| CN103764213A (en) * | 2011-07-08 | 2014-04-30 | 雷斯梅德有限公司 | Swivel elbow and connector assembly for patient interface systems |
| CN111297504A (en) * | 2020-03-25 | 2020-06-19 | 广州市通力生物技术有限公司 | Oral cavity droplet protection instrument |
| CN214274822U (en) * | 2020-06-28 | 2021-09-24 | 广州艾捷斯医疗器械有限公司 | Silencing mechanism suitable for other droplet suction device of mouth |
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| CN113847503A (en) | 2021-12-28 |
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