Anti-vibration carburetor
By installing vibration-absorbing components on the periphery of the carburetor throttle shaft, the axial twitching and radial swing of the throttle shaft are eliminated, and the problems of vibration and wear of the carburetor throttle shaft are solved, and the service life of the carburetor is improved.
Patent Information
- Application Number
- CN202421557214.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-07-03
AI Technical Summary
There is an axial thrust gap and a radial fit gap between the carburetor throttle shaft and the carburetor body, which causes strong vibration and rapid wear of the throttle shaft, which seriously affects the service life of the carburetor.
A vibration-proof carburetor is designed. By setting a counterbore on the periphery of the throttle shaft and installing a vibration-absorbing component in the counterbore, including an open retaining ring and a vibration-absorbing member. The vibration-absorbing member has good energy absorption and compression performance, and plays axial fixing role with the open retaining ring to eliminate axial squirming and radial swinging of the throttle shaft.
Effectively prevent strong vibration of the throttle shaft from relative to the carburetor body, extend the service life of the carburetor, and enable the throttle shaft to rotate flexibly.
Smart Images
Figure CN222633325U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of carburetor throttles, in particular to a vibration-proof carburetor. Background Art
[0002] A carburetor is a mechanical device that mixes a certain proportion of gasoline and air under the vacuum created by the working engine. As a precision mechanical device, the carburetor uses the kinetic energy of the inhaled air flow to atomize the gasoline. Its important role in the engine can be called the "heart" of the engine.
[0003] When a general-purpose gasoline engine is used in a machine with severe vibration, such as a rammer, the vibration intensity of the machine is high, and in order to ensure flexible rotation, there is an axial play clearance and a radial fit clearance between the throttle shaft and the carburetor body. When the whole machine is in use, the throttle shaft vibrates strongly relative to the carburetor body, causing the throttle shaft and the throttle shaft hole to wear rapidly, seriously affecting the service life of the carburetor. Utility Model Content
[0004] In view of the above problems, the present application provides an anti-vibration carburetor, which is used to solve the technical problem that there is axial movement clearance and radial fit clearance between the throttle shaft and the carburetor body. When the whole machine is in use, the throttle shaft vibrates strongly relative to the carburetor body, causing the throttle shaft and the throttle shaft hole to wear rapidly, seriously affecting the service life of the carburetor.
[0005] To achieve the above object, the inventor provides a vibration-proof carburetor, comprising:
[0006] A carburetor body, wherein the carburetor body has a throttle shaft hole and a counterbore;
[0007] The throttle assembly includes a throttle shaft pressure plate, a throttle shaft and a throttle. The throttle shaft pressure plate is mounted on the carburetor body, the throttle shaft pressure plate is connected to the throttle shaft, and the lower part of the throttle shaft extends into the throttle shaft hole and is installed with the throttle;
[0008] A vibration damping assembly, a countersunk hole is arranged on the periphery of the throttle shaft, the vibration damping assembly is arranged in the countersunk hole, the vibration damping assembly includes an open retaining ring and a vibration damping member, a slot is opened on the throttle shaft at the countersunk hole, the open retaining ring is connected to the slot, the vibration damping member is arranged above the open retaining ring, and the top of the vibration damping member contacts the throttle shaft pressure plate.
[0009] Different from the prior art, the technical solution of the present application is provided with a vibration reduction assembly, wherein the open retaining ring plays an axial fixing role, thereby preventing the throttle shaft from having unnecessary axial movement. The vibration reduction component has good energy absorption and compression performance, and can effectively eliminate the axial movement gap and radial swing between the throttle shaft and the carburetor body in cooperation with the open retaining ring, and enable the throttle shaft to rotate flexibly, thereby avoiding the throttle shaft from vibrating strongly relative to the carburetor body when the whole machine is in use, and effectively improving the service life of the carburetor.
[0010] As an implementation mode of the utility model, the vibration reduction assembly further comprises an upper gasket, which is arranged above the vibration reduction member, and the top of the vibration reduction member contacts the throttle shaft pressure plate through the upper gasket.
[0011] In this way, the vibration can be further alleviated by setting the upper gasket. In actual use, the throttle shaft pressure plate compresses the sponge through the upper gasket, and the sponge presses the throttle shaft down through the open retaining ring, so that the lower end surface of the throttle shaft fits with the bottom surface of the throttle shaft hole and exerts a certain pressure, eliminating the axial movement of the throttle shaft.
[0012] As an implementation mode of the utility model, the vibration reduction assembly further includes a lower gasket, and the lower gasket is arranged between the vibration reduction component and the opening retaining ring.
[0013] In this way, the vibration can be further alleviated by setting the lower gasket. In particular, the lower gasket can cooperate with the upper gasket to achieve a better vibration reduction effect. In actual use, the upper gasket and the lower gasket are respectively set above and below the sponge. The throttle shaft pressure plate compresses the sponge through the upper gasket, and the sponge presses the throttle shaft downward through the lower gasket and the open retaining ring, so that the lower end surface of the throttle shaft fits with the bottom surface of the throttle shaft hole and exerts a certain pressure, eliminating the axial movement of the throttle shaft.
[0014] As an implementation mode of the utility model, the vibration reduction assembly further includes a connecting gasket, and the connecting gasket is arranged between the bottom of the countersunk hole and the opening retaining ring.
[0015] In this way, the throttle shaft is provided with a slot at the countersunk hole. Generally, the slot is arranged at the lower part of the countersunk hole, and there is a certain gap between the slot and the bottom of the countersunk hole. Therefore, by arranging a connecting gasket, the gap between the slot and the bottom of the countersunk hole can be filled, thereby further alleviating vibration and reducing axial and radial movement clearances.
[0016] As an implementation mode of the utility model, an outer ring of the vibration damping component and the counterbore are interference fit, and an inner ring of the vibration damping component and the throttle shaft are interference fit.
[0017] In this way, the axial clearance between the vibration damping member and the counterbore and between the vibration damping member and the throttle shaft can be reduced by interference fit, thereby eliminating radial swing of the throttle shaft.
[0018] As an implementation mode of the utility model, the vibration-proof carburetor further comprises a fastener, and the throttle shaft pressure plate is mounted on the carburetor body via the fastener.
[0019] In this way, the throttle shaft pressure plate can be conveniently installed on the carburetor body through the fasteners, and it is also convenient for subsequent disassembly and maintenance.
[0020] As an implementation manner of the utility model, the fastener is a bolt or a stud or a screw.
[0021] Thus, the fastener has a simple structure, low cost and is easy to use.
[0022] As an implementation mode of the utility model, the vibration damping member is a sponge or a felt sleeve.
[0023] In this way, the sponge and felt sleeve have good energy absorption and compression performance, simple structure and easy installation with countersunk hole, so that the throttle shaft can rotate flexibly, and can effectively eliminate the axial play clearance and radial swing between the carburetor throttle shaft and the carburetor body.
[0024] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation method and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.
[0026] In the drawings of the specification:
[0027] Figure 1 A schematic structural diagram of a vibration-proof carburetor according to an embodiment of the present application;
[0028] Figure 2 for Figure 1 Sectional view of AA in the middle;
[0029] Figure 3 for Figure 2 A magnified view of middle;
[0030] Figure 4 for Figure 1 Another cross-sectional view of AA;
[0031] Figure 5 for Figure 4 Enlarged view of B.
[0032] The reference numerals in the above drawings are described as follows:
[0033] 100-anti-vibration carburetor; 1-carburetor body; 11-throttle shaft hole; 12-counterbore; 2-throttle assembly; 21-throttle shaft pressure plate; 22-throttle shaft; 221-slot; 23-throttle; 3-vibration damping assembly; 31-opening retaining ring; 32-vibration damping member; 33-upper gasket; 34-lower gasket; 35-connecting gasket; 4-fastener. DETAILED DESCRIPTION
[0034] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.
[0035] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.
[0036] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.
[0037] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.
[0038] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.
[0039] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.
[0040] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.
[0041] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0042] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0043] According to some embodiments of the present application, please refer to Figures 1 to 5The present embodiment relates to a vibration-proof carburetor 100, comprising a carburetor body 1, a throttle assembly 2 and a vibration reduction assembly 3. The carburetor body 1 has a throttle shaft hole 11 and a counterbore 12; the throttle assembly 2 comprises a throttle shaft pressure plate 21, a throttle shaft 22 and a throttle 23. The throttle shaft pressure plate 21 is mounted on the carburetor body 1, the throttle shaft pressure plate 21 is connected to the throttle shaft 22, and the lower part of the throttle shaft 22 extends into the A throttle 23 is installed in the throttle shaft hole 11; a counterbore 12 is arranged on the periphery of the throttle shaft 22, and a vibration damping assembly 3 is arranged in the counterbore 12. The vibration damping assembly 3 includes an open retaining ring 31 and a vibration damping member 32. A slot 221 is opened on the throttle shaft 22 at the counterbore 12, and the open retaining ring 31 is connected to the slot 221. The vibration damping member 32 is arranged above the open retaining ring 31, and the top of the vibration damping member 32 is in contact with the throttle shaft pressure plate 21.
[0044] The throttle assembly 2 is a conventional structure of an existing carburetor, and the throttle assembly 2 is used to control the intake flow rate of the engine and the air entering the engine.
[0045] Different from the prior art, the technical solution of the present application is provided with a vibration reduction assembly 3, wherein the open retaining ring 31 plays an axial fixing role, thereby preventing unnecessary axial movement of the throttle shaft 22. The vibration reduction member 32 has good energy absorption and compression performance, and can effectively eliminate the axial movement gap and radial swing between the throttle shaft 22 and the carburetor body 1 in cooperation with the open retaining ring 31, and enable the throttle shaft 22 to rotate flexibly, thereby avoiding the throttle shaft 22 from vibrating strongly relative to the carburetor body 1 when the whole machine is in use, and effectively improving the service life of the carburetor.
[0046] According to some embodiments of the present application, optionally, Figure 3 and Figure 5 As shown, the vibration damping assembly 3 further includes an upper gasket 33 , which is disposed above the vibration damping member 32 , and the top of the vibration damping member 32 is in contact with the throttle shaft pressure plate 21 through the upper gasket 33 .
[0047] Thus, the vibration can be further alleviated by providing the upper gasket 33. In actual use, the throttle shaft pressure plate 21 compresses the sponge through the upper gasket 33, and the sponge presses the throttle shaft 22 downward through the open retaining ring 31, so that the lower end surface of the throttle shaft 22 is attached to the bottom surface of the throttle shaft hole 11 and a certain pressure is applied, thereby eliminating the axial movement of the throttle shaft 22.
[0048] According to some embodiments of the present application, optionally, Figure 3 and Figure 5 As shown, the vibration damping assembly 3 further includes a lower gasket 34 , which is disposed between the vibration damping member 32 and the open retaining ring 31 .
[0049] Thus, the vibration can be further alleviated by setting the lower gasket 34. In particular, the lower gasket 34 can cooperate with the upper gasket 33 to achieve a better vibration reduction effect. In actual use, the upper gasket 33 and the lower gasket 34 are respectively arranged above and below the sponge. The throttle shaft pressure plate 21 compresses the sponge through the upper gasket 33, and the sponge presses the throttle shaft 22 downward through the lower gasket 34 and the open retaining ring 31, so that the lower end surface of the throttle shaft 22 is attached to the bottom surface of the throttle shaft hole 11 and a certain pressure is applied, thereby eliminating the axial movement of the throttle shaft 22.
[0050] According to some embodiments of the present application, optionally, Figure 5 As shown, the vibration reduction assembly 3 further includes a connecting gasket 35 , which is disposed between the bottom of the counterbore 12 and the opening retaining ring 31 .
[0051] In this way, the throttle shaft 22 is provided with a slot 221 at the counterbore 12. Generally, the slot 221 is arranged at the lower part of the counterbore 12, and there is a certain gap between the slot 221 and the bottom of the counterbore 12. Therefore, by arranging a connecting gasket 35, the gap between the slot 221 and the bottom of the counterbore 12 can be filled, thereby further alleviating vibration and reducing axial and radial play clearances.
[0052] According to some embodiments of the present application, optionally, Figure 2 and Figure 4 As shown, the outer ring of the vibration damping member 32 is interference fit with the counterbore 12 , and the inner ring of the vibration damping member 32 is interference fit with the throttle shaft 22 .
[0053] In this way, the axial clearance between the vibration damping member 32 and the counterbore 12 and between the vibration damping member 32 and the throttle shaft 22 can be reduced by interference fit, thereby eliminating radial swing of the throttle shaft 22 .
[0054] According to some embodiments of the present application, optionally, Figure 2 and Figure 4 As shown, the anti-vibration carburetor 100 further includes a fastener 4 , and the throttle shaft pressure plate 21 is mounted on the carburetor body 1 via the fastener 4 .
[0055] In this way, the throttle shaft pressure plate 21 can be easily installed on the carburetor body 1 through the fastener 4, and it is also convenient for subsequent disassembly and maintenance.
[0056] According to some embodiments of the present application, optionally, the fastener 4 is a bolt or a stud or a screw.
[0057] In this way, the fastener 4 has a simple structure, low cost, and is easy to use.
[0058] According to some embodiments of the present application, optionally, the vibration damping member 32 is a sponge or a felt sleeve.
[0059] In this way, the sponge and the felt sleeve have good energy absorption and compression performance, simple structure and easy installation with the countersunk hole 12, so that the throttle shaft 22 can rotate flexibly, and can effectively eliminate the axial play clearance and radial swing between the carburetor throttle shaft 22 and the carburetor body 1.
[0060] In this embodiment, the power mechanism or power unit includes but is not limited to an engine, a motor, a pneumatic tool, a hydraulic pump, etc. The power unit also includes a direct power source and an indirect power source. The direct power source can provide power by itself, such as an engine, a motor, etc., and the indirect power source includes a cylinder, a hydraulic cylinder, etc. The power mechanism or power unit can drive the linear reciprocating motion of the execution unit through the matching of gear racks, the matching of sliders and slide grooves, and the matching of screws and nuts.
[0061] In this embodiment, the transmission mechanism or transmission unit includes a reducer, a gearbox, a worm gear mechanism, a connecting rod mechanism, a compound mechanism, etc. The transmission mechanism or transmission unit is used to transfer power from the power mechanism or power unit to the actuator or actuator unit.
[0062] In this embodiment, the actuator or actuator unit includes but is not limited to a compression mechanism, a rotation mechanism, a swing mechanism, a vibration mechanism, a lifting mechanism, a cutting mechanism, etc.
[0063] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.
[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A vibration-proof carburetor, characterized in that: include: A carburetor body, wherein the carburetor body has a throttle shaft hole and a counterbore; A throttle assembly, the throttle assembly comprising a throttle shaft pressure plate, a throttle shaft and a throttle, the throttle shaft pressure plate being mounted on the carburetor body, the throttle shaft pressure plate being connected to the throttle shaft, the lower portion of the throttle shaft extending into the throttle shaft hole and being mounted with the throttle; A vibration damping assembly, wherein the counterbore is arranged on the periphery of the throttle shaft, the vibration damping assembly is arranged in the counterbore, the vibration damping assembly includes an open retaining ring and a vibration damping member, the throttle shaft is provided with a slot at the counterbore, the open retaining ring is connected to the slot, the vibration damping member is arranged above the open retaining ring, and the top of the vibration damping member is in contact with the throttle shaft pressure plate.
2. The vibration-proof carburetor according to claim 1, characterized in that The vibration damping assembly further comprises an upper gasket, which is arranged above the vibration damping member, and the top of the vibration damping member contacts the throttle shaft pressure plate through the upper gasket.
3. The vibration-proof carburetor according to claim 1, characterized in that: The vibration damping assembly further comprises a lower gasket, which is arranged between the vibration damping member and the opening retaining ring.
4. The vibration-proof carburetor according to claim 1, characterized in that The vibration reduction assembly further comprises a connecting gasket, which is arranged between the bottom of the counterbore and the opening retaining ring.
5. The vibration-proof carburetor according to claim 1, characterized in that The outer ring of the vibration damping component is interference fit with the counterbore, and the inner ring of the vibration damping component is interference fit with the throttle shaft.
6. The vibration-proof carburetor according to claim 1, characterized in that The vibration-proof carburetor further comprises a fastener, through which the throttle shaft pressure plate is mounted on the carburetor body.
7. The vibration-proof carburetor according to claim 6, characterized in that The fastener is a bolt, a stud or a screw.
8. The vibration-proof carburetor according to claim 1, characterized in that The vibration damping member is a sponge or a felt sleeve.