Vibration damper

Abstract

A vibration damper includes a mounting portion for connecting with an external component, and a cylindrical portion that is separately provided from and assembled with the mounting portion. The cylindrical portion is provided with an internal space, and the internal space is in fluid communication with the external space through a fine hole. With such a setting, when the vibration damper absorbs vibrations and causes a change in the internal space, the air in the internal space flows through the fine hole to the external space to play a damping role.

Description

Technical Field

[0001] The present invention relates to a vibration damper, one end of which is used to connect to a fixed wall portion, and the other end is used to connect to a vibration source (such as a pump or a motor, etc.), and is applicable to the technical field of household appliances (such as dishwashers). Background Art

[0002] The function of a vibration damper is to absorb vibration and reduce the vibration impact caused by the vibration source on the entire system. Existing vibration dampers are often integrally formed, and their materials are mainly made of elastic materials. When in use, the vibration is absorbed through the elastic deformation of the elastic material itself. However, this design has a complex structure, a relatively large manufacturing difficulty, and poor durability. Summary of the Invention

[0003] The purpose of the present invention is to provide a vibration damper with simple manufacturing and good durability.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A vibration damper includes a mounting portion for connecting to an external component. The vibration damper further includes a cylindrical portion that is separately provided from the mounting portion and assembled with the mounting portion. The cylindrical portion is provided with an internal space, and the internal space is in fluid communication with the external space through a fine hole.

[0005] As a further improved technical solution of the present invention, the mounting portion includes a first mounting portion and a second mounting portion, and two sides of the cylindrical portion are respectively snapped with the first mounting portion and the second mounting portion.

[0006] As a further improved technical solution of the present invention, the first mounting portion includes a first sleeve portion, and the second mounting portion includes a second sleeve portion; at least a part of one side of the cylindrical portion is inserted into the first sleeve portion, at least a part of the other side of the cylindrical portion is inserted into the second sleeve portion, and the cylindrical portion includes a first snap portion that cooperates with the first sleeve portion and a second snap portion that cooperates with the second sleeve portion.

[0007] As a further improved technical solution of the present invention, the first mounting portion includes a first wall portion connected to the first sleeve portion, the second mounting portion includes a second wall portion connected to the second sleeve portion, and the fine hole includes a first fine hole that penetrates the first wall portion and is in fluid communication with the internal space and a second fine hole that penetrates the second wall portion and is in fluid communication with the internal space.

[0008] As a further improved technical solution of the present invention, the first mounting portion includes a first protruding portion extending axially from the first wall portion and a first end cap located at the end of the first protruding portion. The first protruding portion is provided with a first mounting rib for mounting an external component. The fine hole includes a third fine hole penetrating through the first end cap and in fluid communication with the internal space. The second mounting portion includes a second protruding portion extending axially from the second wall portion and a second end cap located at the end of the second protruding portion. The second protruding portion is provided with a second mounting rib for mounting an external component. The fine hole includes a fourth fine hole penetrating through the second end cap and in fluid communication with the internal space.

[0009] As a further improved technical solution of the present invention, the first mounting portion includes a first cavity, the first cavity is in fluid communication with the internal space through the first fine hole, and the first cavity is in fluid communication with the external space through the third fine hole. The second mounting portion includes a second cavity, the second cavity is in fluid communication with the internal space through the second fine hole, and the second cavity is in fluid communication with the external space through the fourth fine hole.

[0010] As a further improved technical solution of the present invention, the first mounting portion includes a first wall portion and a first protruding portion protruding from the first wall portion. The first protruding portion is provided with a first mounting rib for mounting an external component. The second mounting portion includes a second wall portion and a second protruding portion protruding from the second wall portion. The second protruding portion is provided with a second mounting rib for mounting an external component.

[0011] As a further improved technical solution of the present invention, the first wall portion is provided with a first through hole, and the second wall portion is provided with a second through hole. One side of the cylindrical portion is provided with a first locking portion that passes through the first through hole to be locked with the first wall portion, and the other side of the cylindrical portion is provided with a second locking portion that passes through the second through hole to be locked with the second wall portion.

[0012] As a further improved technical solution of the present invention, the first protruding portion is provided with a first cavity in fluid communication with the external space, and the second protruding portion is provided with a second cavity in fluid communication with the external space. The fine hole includes a first fine hole penetrating through the first wall portion to fluidly connect the internal space and the first cavity, and a second fine hole penetrating through the second wall portion to fluidly connect the internal space and the second cavity.

[0013] As a further improved technical solution of the present invention, the vibration damper is made of an elastically deformable material. The first mounting portion and the second mounting portion are symmetrically mounted at both ends of the cylindrical portion, and the structures of the first mounting portion and the second mounting portion are the same.

[0014] Compared with the prior art, the present invention simplifies the structure of each component and facilitates manufacturing by separately arranging the cylindrical part and the mounting part; in addition, the internal space is connected to the external space fluid through fine holes. When the vibration damper is deformed due to vibration, air can be used as a damping medium to reduce the deformation effect on the vibration damper itself and improve durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of a vibration damper of the present invention in one embodiment.

[0016] Figure 2 yes Figure 1 Partial exploded view of the .

[0017] Figure 3 yes Figure 2 Partial three-dimensional exploded view from another angle.

[0018] Figure 4 yes Figure 2 Further exploded view.

[0019] Figure 5 yes Figure 3 Further exploded view.

[0020] Figure 6 yes Figure 1 Top view of the .

[0021] Figure 7 is along Figure 1 Schematic diagram of the three-dimensional image after sectioning along the AA line.

[0022] Figure 8 is along Figure 1 Cross-section along line AA.

[0023] Figure 9 yes Figure 8 Schematic diagram of the vibration damper connected to external components.

[0024] Figure 10 It is a three-dimensional schematic diagram of the vibration damper of the present invention in another embodiment.

[0025] Figure 11 yes Figure 10 Exploded three-dimensional diagram.

[0026] Figure 12 yes Figure 10 Top view of the .

[0027] Figure 13 is along Figure 10 Schematic diagram of the three-dimensional image after sectioning along the midline BB.

[0028] Figure 14 is a sectional view along Figure 10 the B-B line in

[0029] Figure 15 is Figure 14 a schematic diagram showing the connection between the vibration damper in Detailed implementation manners

[0030] Please refer to Figures 1 to 9 As shown, the present invention discloses a vibration damper 100, which includes a mounting portion 1 for connecting with an external component and a cylindrical portion 2 that is separately arranged from and assembled with the mounting portion 1. The mounting portion 1 includes a first mounting portion 3 and a second mounting portion 4, and both sides of the cylindrical portion 2 are respectively buckled with the first mounting portion 3 and the second mounting portion 4. The cylindrical portion 2 is provided with an internal space 20, and the internal space 20 is in fluid communication with the external space through a fine hole 5.

[0031] Specifically, please refer to Figures 1 to 9 As shown, in an implementation manner of the present invention, the first mounting portion 3 includes a first sleeve portion 31, a first wall portion 32 connected to the first sleeve portion 31, a first protruding portion 33 extending axially along M-M from the first wall portion 32, and a first end cap 34 located at the end of the first protruding portion 33. The second mounting portion 4 includes a second sleeve portion 41, a second wall portion 42 connected to the second sleeve portion 41, a second protruding portion 43 extending axially along M-M from the second wall portion 42, and a second end cap 44 located at the end of the second protruding portion 43.

[0032] One side (such as the upper side) of the cylindrical portion 2 is at least partially inserted into the first sleeve portion 31, and the other side (such as the lower side) of the cylindrical portion 2 is at least partially inserted into the second sleeve portion 41. The cylindrical portion 2 and the first sleeve portion 31 and the second sleeve portion 41 are provided with a mutually matching buckling structure. In the implementation manner illustrated in the present invention, the cylindrical portion 2 includes a first buckling portion 21 that cooperates with the first sleeve portion 31 and a second buckling portion 22 that cooperates with the second sleeve portion 41. Of course, in other implementation manners, the first buckling portion 21 and the second buckling portion 22 may also be respectively arranged on the inner sides of the first sleeve portion 31 and the second sleeve portion 41. In the implementation manner illustrated in the present invention, the joint surfaces of the first sleeve portion 31 and the second sleeve portion 41 are abutted against each other, and the position where the joint surface is located is approximately in the middle of the cylindrical portion 2.

[0033] The micropores 5 include a first micropore 51 that penetrates the first wall portion 32 and is in fluid communication with the internal space 20, a second micropore 52 that penetrates the second wall portion 42 and is in fluid communication with the internal space 20, a third micropore 53 that penetrates the first end cap 34 and is in fluid communication with the internal space 20, and a fourth micropore 54 that penetrates the second end cap 44 and is in fluid communication with the internal space 20.

[0034] The first mounting portion 3 includes a first cavity 30. The first cavity 30 is in fluid communication with the internal space 20 through the first micropore 51, and the first cavity 30 is in fluid communication with the external space through the third micropore 53. The second mounting portion 4 includes a second cavity 40. The second cavity 40 is in fluid communication with the internal space 20 through the second micropore 52, and the second cavity 40 is in fluid communication with the external space through the fourth micropore 54.

[0035] Of course, in other embodiments, the position of the micropores 5 can also be set on the wall surfaces of the first sleeve portion 31 and / or the second sleeve portion 41, or on the vibration damper 100 at any reasonable position that can fluidly connect the internal space 20 and the external space.

[0036] It should be noted that the term "micropore" used in the present invention means that when the vibration damper 100 absorbs vibration, due to volume change (such as volume reduction) of the internal space 20, the air in the internal space 20 is compressed, and the compressed air passes through the "micropore" for flow regulation. During this process, the air in the internal space 20 can act as a damping medium due to being compressed. Therefore, it can be understood that the size of the "micropore" is not easy to be designed too large, otherwise it is impossible to provide a reasonable long time for air compression, and the air cannot play the role of a damping medium with practical significance.

[0037] Please refer Figure 9 As shown, the first protruding portion 33 is provided with a first mounting rib 331 for mounting an external component (such as a support wall 61 of a pump or a motor). The second protruding portion 43 is provided with a second mounting rib 431 for mounting an external component (such as a fixed wall 62 of a dishwasher). With such a setting, the vibration damper 100 connects the vibration source and the fixed wall. Preferably, the first mounting rib 331 and the first wall portion 32 jointly clamp the external component (such as a support wall 61 of a pump or a motor), and the second mounting rib 431 and the second wall portion 42 jointly clamp the external component (such as a fixed wall 62 of a dishwasher).

[0038] The vibration damper 100 is made of an elastically deformable material (such as rubber); the first mounting portion 3 and the second mounting portion 4 are symmetrically mounted at both ends of the cylindrical portion 2, and the first mounting portion 3 and the second mounting portion 4 have the same structure. Compared with the prior art, in the present invention, by designing the mounting portion 1 and the cylindrical portion 2 as two components separately manufactured but assembled together, the structure of each component is simplified, and the manufacturing difficulty is reduced. In addition, by designing the first mounting portion 3 and the second mounting portion 4 to have the same structure, a set of molds can be shared, reducing the manufacturing cost.

[0039] During use, the vibration damper 100 of the present invention undergoes elastic deformation under the influence of a vibration source (such as a pump or a motor). At this time, the vibration damper 100 undergoes elastic deformation, and the internal space 20 of the cylindrical portion 2 is squeezed and its volume decreases, and at least part of the medium (such as air) in the internal space 20 is extruded outwards; during this process, this medium (such as air) plays a certain damping role to prevent excessive deformation of the vibration damper 100. When the vibration subsides, the elastic deformation of the vibration damper 100 gradually recovers, and the internal space 20 of the cylindrical portion 2 also gradually returns to its original volume. At this time, the external medium (such as air) replenishes the internal space 20 again; during this process, this medium (such as air) can also play a certain damping role.

[0040] Please refer Figures 10 to 15 As shown, another embodiment of the present invention discloses a vibration damper 100', which includes a mounting portion 1' for connecting with an external component and a cylindrical portion 2' separately provided from the mounting portion 1' and assembled with the mounting portion 1'. The mounting portion 1' includes a first mounting portion 3' and a second mounting portion 4', and both sides of the cylindrical portion 2' are buckled with the first mounting portion 3' and the second mounting portion 4' respectively. The cylindrical portion 2' is provided with an internal space 20', and the internal space 20' is in fluid communication with the external space through a fine hole 5'.

[0041] Specifically, the first mounting portion 3' includes a first wall portion 32' and a first protruding portion 33' protruding from the first wall portion 32'. The first protruding portion 33' is provided with a first mounting rib 331' for mounting an external component (such as a support wall 61' of a pump or a motor); the second mounting portion 4' includes a second wall portion 42' and a second protruding portion 43' protruding from the second wall portion 42'. The second protruding portion 43' is provided with a second mounting rib 431' for mounting an external component (such as a fixed wall 62' of a dishwasher).

[0042] The first wall portion 32' is provided with a first through hole 321', and the second wall portion 42' is provided with a second through hole 421'; one side (such as the upper side) of the cylindrical portion 2' is provided with a first clamping portion 23' that passes through the first through hole 321' to be clamped with the first wall portion 32', and the other side (such as the lower side) of the cylindrical portion 2' is provided with a second clamping portion 24' that passes through the second through hole 421' to be clamped with the second wall portion 42'.

[0043] The first protruding portion 33' is provided with a first cavity 30' that is in fluid communication with the external space, and the second protruding portion 43' is provided with a second cavity 40' that is in fluid communication with the external space; the fine hole 5' includes a first fine hole 51' that penetrates through the first wall portion 32' to fluidly connect the internal space 20' with the first cavity 30', and a second fine hole 52' that penetrates through the second wall portion 42' to fluidly connect the internal space 20' with the second cavity 40'.

[0044] The working principle of the vibration damper 100' is the same as that of the vibration damper 100, and will not be elaborated here.

[0045] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. The understanding of this specification should be based on those skilled in the art of the relevant technical field. For example, for the directional descriptions such as "front", "rear", "left", "right", "upper", "lower", etc., although this specification has described the present invention in detail with reference to the above embodiments, those of ordinary skill in the art should understand that those skilled in the relevant technical field can still modify the present invention or make equivalent substitutions, and all technical solutions and their improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A vibration damper, which includes a mounting portion for connecting to an external component, characterized in that: The vibration damper further includes a cylindrical portion that is separately provided from and assembled with the mounting portion. The cylindrical portion is provided with an internal space, and the internal space is in fluid communication with the external space through fine holes. The mounting portion includes a first mounting portion, and the first mounting portion includes a first protruding portion, and the first protruding portion is provided with a first mounting rib for mounting an external component.

2. The vibration damper according to claim 1, characterized in that: The mounting portion includes a second mounting portion, and both sides of the cylindrical portion are respectively latched with the first mounting portion and the second mounting portion.

3. The vibration damper according to claim 2, characterized in that: The first mounting portion includes a first sleeve portion, and the second mounting portion includes a second sleeve portion; at least a part of one side of the cylindrical portion is inserted into the first sleeve portion, and at least a part of the other side of the cylindrical portion is inserted into the second sleeve portion. The cylindrical portion includes a first latching portion that cooperates with the first sleeve portion and a second latching portion that cooperates with the second sleeve portion.

4. The vibration damper according to claim 3, characterized in that: The first mounting portion includes a first wall portion connected to the first sleeve portion, and the second mounting portion includes a second wall portion connected to the second sleeve portion. The fine holes include a first fine hole that penetrates the first wall portion and is in fluid communication with the internal space and a second fine hole that penetrates the second wall portion and is in fluid communication with the internal space.

5. The vibration damper according to claim 4, characterized in that: The first protruding portion extends axially from the first wall portion. The first mounting portion includes a first end cap located at the end of the first protruding portion. The fine holes include a third fine hole that penetrates the first end cap and is in fluid communication with the internal space; the second mounting portion includes a second protruding portion that extends axially from the second wall portion and a second end cap located at the end of the second protruding portion. The second protruding portion is provided with a second mounting rib for mounting an external component. The fine holes include a fourth fine hole that penetrates the second end cap and is in fluid communication with the internal space.

6. The vibration damper according to claim 5, characterized in that: The first mounting portion includes a first cavity, and the first cavity is in fluid communication with the internal space through the first fine hole and in fluid communication with the external space through the third fine hole; the second mounting portion includes a second cavity, and the second cavity is in fluid communication with the internal space through the second fine hole and in fluid communication with the external space through the fourth fine hole.

7. The vibration damper according to claim 2, characterized in that: The first mounting portion includes a first wall portion and a first protruding portion protruding from the first wall portion; the second mounting portion includes a second wall portion and a second protruding portion protruding from the second wall portion. The second protruding portion is provided with a second mounting rib for mounting an external component.

8. The vibration damper according to claim 7, characterized in that: The first wall portion is provided with a first through hole, and the second wall portion is provided with a second through hole; one side of the cylindrical portion is provided with a first latching portion that passes through the first through hole to latch with the first wall portion, and the other side of the cylindrical portion is provided with a second latching portion that passes through the second through hole to latch with the second wall portion.

9. The vibration damper according to claim 7, characterized in that: The first protruding portion is provided with a first cavity that is in fluid communication with the external space, and the second protruding portion is provided with a second cavity that is in fluid communication with the external space; the fine holes include a first fine hole that penetrates the first wall portion to fluidly connect the internal space with the first cavity, and a second fine hole that penetrates the second wall portion to fluidly connect the internal space with the second cavity.

10. The vibration damper according to any one of claims 2 to 9, characterized in that: The vibration damper is made of an elastically deformable material; the first mounting portion and the second mounting portion are symmetrically mounted at both ends of the cylindrical portion, and the first mounting portion and the second mounting portion have the same structure.

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