CN210371788U

CN210371788U - Vibration damper

Info

Publication number: CN210371788U
Application number: CN201921124096.7U
Authority: CN
Inventors: H-D·艾希霍尔茨; 杜斯科·武科曼
Original assignee: Bleckmann GmbH and Co KG; Zhejiang Sanhua Intelligent Controls Co Ltd
Current assignee: Bleckmann GmbH and Co KG; Zhejiang Sanhua Intelligent Controls Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-04-21
Anticipated expiration: 2029-07-17

Abstract

A vibration damper includes a mounting portion for connection with an external element, and a cylindrical portion provided separately from the mounting portion and assembled with the mounting portion, the cylindrical portion being provided with an internal space that is in fluid communication with the external space through a fine hole. So set up, when vibration damper absorbs vibrations and makes the inner space change, the air in the inner space passes through pore and outside space flow to play the damping effect.

Description

Vibration damper

Technical Field

The utility model relates to a vibration damper, its one end is used for connecting fixed wall portion, the other end be used for with be connected the vibration source (for example pump or motor etc.), be applicable to household electrical appliances (for example dish washer) technical field.

Background

The vibration damper has the function of absorbing vibration and reducing the vibration influence of a vibration source on the whole system. The existing vibration damper is often integrally formed, and the material of the existing vibration damper is mainly made of elastic materials. When in use, the elastic material absorbs vibration through the elastic deformation of the elastic material. However, such design is complicated, difficult to manufacture and poor in durability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a make simple and better vibration damper of durability.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a vibration damper includes an installation portion for connecting with an external element, and further includes a cylindrical portion provided separately from the installation portion and assembled with the installation portion, the cylindrical portion being provided with an inner space, the inner space being in fluid communication with the outer space through a fine hole.

As a further improved technical scheme of the utility model, the installation department includes first installation department and second installation department, the both sides of tube-shape portion respectively with first installation department and second installation department looks buckle.

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; one side of the cylindrical part is at least partially inserted into the first sleeve part, the other side of the cylindrical part is at least partially inserted into the second sleeve part, and the cylindrical part comprises a first buckling part matched with the first sleeve part and a second buckling part matched with the second sleeve part.

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, the pore includes a through hole the first wall portion and with a first pore of the inner space fluid communication and a through hole the second wall portion and with a second pore of the inner space fluid communication.

As a further improved technical solution of the present invention, the first mounting portion includes a first protrusion extending from the first wall portion in the axial direction and a first end cap located at an end of the first protrusion, the first protrusion is provided with a first mounting rib for mounting an external element, and the fine hole includes a third fine hole penetrating the first end cap and in fluid communication with the inner space; the second installation department includes certainly second wall portion and along the second bulge of axial extension and be located the second end cover of the tip of second bulge, the second bulge is equipped with the second installation rib that is used for installing external element, the pore is including running through the second end cover and with inner space fluid communication's fourth pore.

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 inner space through the first fine hole, and the first cavity is in fluid communication with the outer space through the third fine hole; the second installation portion comprises a second cavity, the second cavity is communicated with the inner space through the second fine holes, and the second cavity is communicated with the outer space through the fourth fine holes.

As a further improved technical solution of the present invention, the first mounting portion includes a first wall portion and a first protrusion protruding from the first wall portion, the first protrusion being provided with a first mounting rib for mounting an external element; the second mounting portion includes a second wall portion and a second projecting portion projecting from the second wall portion, the second projecting portion being provided with a second mounting rib for mounting an external element.

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 part is provided with a first clamping part which penetrates through the first through hole to be buckled with the first wall part, and the other side of the cylindrical part is provided with a second clamping part which penetrates through the second through hole to be buckled with the second wall part.

As a further improved technical solution of the present invention, the first protrusion is provided with a first cavity in fluid communication with the external space, and the second protrusion is provided with a second cavity in fluid communication with the external space; the pores include a first pore that penetrates the first wall portion to fluidly communicate the interior space with the first cavity, and a second pore that penetrates the second wall portion to fluidly communicate the interior space with the second cavity.

As a further improved technical solution of the present invention, the vibration damper is made of an elastically deformable material; the first installation part and the second installation part are symmetrically installed at two ends of the cylindrical part, and the first installation part and the second installation part are identical in structure.

Compared with the prior art, the utility model simplifies the structure of each part and is convenient for manufacturing by separately arranging the cylindrical part and the mounting part; in addition, the internal space is in fluid communication with the external space through the pores, and when the vibration damper is deformed due to vibration, air can be used as a damping medium, so that the influence of deformation on the vibration damper itself is reduced, and the durability is improved.

Drawings

Fig. 1 is a schematic perspective view of the vibration damper according to an embodiment of the present invention.

Fig. 2 is a partially exploded perspective view of fig. 1.

Fig. 3 is a partially exploded perspective view from another angle of fig. 2.

Fig. 4 is a further exploded perspective view of fig. 2.

Fig. 5 is a further exploded perspective view of fig. 3.

Fig. 6 is a top view of fig. 1.

Fig. 7 is a perspective view of fig. 1 taken along line a-a.

Fig. 8 is a sectional view taken along line a-a in fig. 1.

Fig. 9 is a schematic view of the vibration damper of fig. 8 connected to an external member.

Fig. 10 is a perspective view of another embodiment of the vibration damper of the present invention.

Fig. 11 is an exploded perspective view of fig. 10.

Fig. 12 is a top view of fig. 10.

Fig. 13 is a perspective view taken along line B-B of fig. 10.

Fig. 14 is a sectional view taken along line B-B in fig. 10.

Fig. 15 is a schematic view of the vibration damper of fig. 14 connected to an external member.

Detailed Description

Referring to fig. 1 to 9, the present invention discloses a vibration damper 100 including a mounting portion 1 for connecting to an external component and a cylindrical portion 2 separately provided from the mounting portion 1 and assembled with the mounting portion 1. The installation part 1 comprises a first installation part 3 and a second installation part 4, and two sides of the cylindrical part 2 are respectively buckled with the first installation part 3 and the second installation part 4. The cylindrical part 2 is provided with an inner space 20, which inner space 20 is in fluid communication with an outer space through pores 5.

Specifically, referring to fig. 1 to 9, in an embodiment 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 protrusion 33 extending from the first wall portion 32 in an axial direction M-M, and a first end cap 34 located at an end of the first protrusion 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 protrusion 43 extending from the second wall portion 42 in the axial direction M-M, and a second end cap 44 located at an end of the second protrusion 43.

One side (e.g., the upper side) of the cylindrical portion 2 is at least partially inserted into the first sleeve portion 31, and the other side (e.g., the lower side) of the cylindrical portion 2 is at least partially inserted into the second sleeve portion 41. The cylindrical portion 2, the first sleeve portion 31 and the second sleeve portion 41 are provided with mutually matched snap structures. In the illustrated embodiment of the present invention, the cylindrical portion 2 includes a first locking portion 21 that engages with the first sleeve portion 31 and a second locking portion 22 that engages with the second sleeve portion 41. Of course, in another embodiment, the first locking portion 21 and the second locking portion 22 may be provided inside the first sleeve portion 31 and the second sleeve portion 41, respectively. In the illustrated embodiment of the present invention, the joint surfaces of the first sleeve portion 31 and the second sleeve portion 41 abut against each other, and the joint surface is located approximately in the middle of the cylindrical portion 2.

The pores 5 include a first pore 51 extending through the first wall portion 32 and in fluid communication with the interior space 20, a second pore 52 extending through the second wall portion 42 and in fluid communication with the interior space 20, a third pore 53 extending through the first end cap 34 and in fluid communication with the interior space 20, and a fourth pore 54 extending through the second end cap 44 and in fluid communication with the interior space 20.

The first mounting portion 3 includes a first cavity 30, the first cavity 30 is in fluid communication with the inner space 20 through the first fine hole 51, and the first cavity 30 is in fluid communication with the outer space through the third fine hole 53; the second mounting portion 4 includes a second cavity 40, the second cavity 40 being in fluid communication with the inner space 20 through the second aperture 52, and the second cavity 40 being in fluid communication with the outer space through the fourth aperture 54.

Of course, in other embodiments, the position of the fine hole 5 may be provided on the wall surface of the first sleeve portion 31 and/or the second sleeve portion 41, or may be provided at any appropriate position of the vibration damper 100 where the internal space 20 can be in fluid communication with the external space.

The term "fine pores" as used in the present invention means that when the vibration damper 100 absorbs vibration, the air in the internal space 20 is compressed due to a change in volume (for example, a decrease in volume) of the internal space 20, and the flow rate of the compressed air is adjusted through the "fine pores". In this process, the air in the internal space 20 can function as a damping medium by being compressed. It will therefore be appreciated that the "pores" are not easily oversized to provide a reasonable amount of time for air compression and to allow the air to act as a damping medium of practical significance.

Referring to fig. 9, the first protrusion 33 is provided with a first mounting rib 331 for mounting an external component (e.g., the support wall 61 of the pump or the motor). The second projection 43 is provided with a second mounting rib 431 for mounting an external element, such as a fixed wall 62 of a dishwasher. So configured, the vibration damper 100 connects the vibration source with the fixed wall. Preferably, the first mounting rib 331 and the first wall portion 32 together clamp an external element (e.g. a support wall 61 of a pump or a motor), and the second mounting rib 431 and the second wall portion 42 together clamp an external element (e.g. a fixed wall 62 of a dishwasher).

The vibration damper 100 is made of an elastically deformable material (e.g., rubber); the first installation part 3 and the second installation part 4 are symmetrically installed at two ends of the cylindrical part 2, and the first installation part 3 and the second installation part 4 are identical in structure. Compared with the prior art, the utility model discloses a will installation department 1 with tube-shape portion 2 designs for two parts that separately make but assemble together, has simplified the structure of each part, has reduced the manufacturing degree of difficulty. In addition, the first installation part 3 and the second installation part 4 are designed to be the same, so that one set of die can be shared, and the manufacturing cost is reduced.

When in use, the vibration damper 100 of the present invention elastically deforms under the influence of a vibration source (e.g., a pump or a motor), and at this time, the vibration damper 100 elastically deforms, the internal space 20 of the cylindrical portion 2 is squeezed to reduce the volume, and at least a part of the medium (e.g., air) in the internal space 20 is pushed out; in the process, the medium (e.g., air) acts as a certain damping function to prevent excessive deformation of the vibration damper 100. When the vibration is reduced, the elastic deformation of the vibration damper 100 is gradually restored, the internal space 20 of the cylindrical portion 2 is also gradually restored to the original volume, and the external medium (for example, air) is newly filled in the internal space 20; in the process, the medium (such as air) can also play a certain damping role.

Referring to fig. 10 to 15, another embodiment of the present invention discloses a vibration damper 100 ' including a mounting portion 1 ' for connecting to an external member and a cylindrical portion 2 ' provided separately from the mounting portion 1 ' and assembled with the mounting portion 1 '. The installation part 1 'comprises a first installation part 3' and a second installation part 4 ', two sides of the cylindrical part 2' are respectively buckled with the first installation part 3 'and the second installation part 4'. The cylindrical portion 2 'is provided with an inner space 20', which inner space 20 'is in fluid communication with an outer space through the pores 5'.

Specifically, the first mounting portion 3 ' includes a first wall portion 32 ' and a first projection 33 ' projecting from the first wall portion 32 ', the first projection 33 ' being provided with a first mounting rib 331 ' for mounting an external component (e.g., a support wall 61 ' of a pump or a motor); the second mounting portion 4 ' includes a second wall portion 42 ' and a second protrusion 43 ' protruding from the second wall portion 42 ', and the second protrusion 43 ' is provided with a second mounting rib 431 ' to mount an external member, such as a fixing wall 62 ' of a dishwasher.

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 (e.g., an upper side) of the cylindrical part 2 'is provided with a first catching part 23' passing through the first through hole 321 'to be caught with the first wall part 32', and the other side (e.g., a lower side) of the cylindrical part 2 'is provided with a second catching part 24' passing through the second through hole 421 'to be caught with the second wall part 42'.

Said first projection 33 'is provided with a first cavity 30' in fluid communication with the external space, said second projection 43 'is provided with a second cavity 40' in fluid communication with the external space; the pores 5 ' include a first pore 51 ' extending through the first wall portion 32 ' to fluidly communicate the interior space 20 ' with the first cavity 30 ', and a second pore 52 ' extending through the second wall portion 42 ' to fluidly communicate the interior space 20 ' with the second cavity 40 '.

The operation principle of the vibration damper 100' is the same as that of the vibration damper 100, and thus, the description thereof is omitted.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical people in the related art, for example, the descriptions of the directions such as "front", "back", "left", "right", "up", "down", etc., although the present specification has described the present invention in detail with reference to the above embodiments, the ordinary skilled in the art should understand that the technical people in the related art can still modify or substitute the present invention, and all the technical solutions and modifications thereof 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 (100, 100 ') comprising a mounting portion (1, 1') for connection to an external element, characterized in that: the vibration damper (100, 100 ') further includes a cylindrical portion (2, 2') provided separately from the mounting portion (1, 1 ') and assembled with the mounting portion (1, 1'), the cylindrical portion (2, 2 ') being provided with an inner space (20, 20'), the inner space (20, 20 ') being in fluid communication with an outer space through a fine hole (5, 5').

2. The vibration damper (100, 100') of claim 1, wherein: the installation part (1, 1 ') comprises a first installation part (3, 3') and a second installation part (4, 4 '), two sides of the cylindrical part (2, 2') are respectively buckled with the first installation part (3, 3 ') and the second installation part (4, 4').

3. The vibration damper (100) of claim 2, wherein: the first mounting part (3) comprises a first sleeve part (31) and the second mounting part (4) comprises a second sleeve part (41); one side of the cylindrical part (2) is at least partially inserted into the first sleeve part (31), the other side of the cylindrical part (2) is at least partially inserted into the second sleeve part (41), and the cylindrical part (2) comprises a first buckling part (21) matched with the first sleeve part (31) and a second buckling part (22) matched with the second sleeve part (41).

4. A vibration damper (100) as claimed in claim 3, characterized in that: the first mounting portion (3) includes a first wall portion (32) connected to the first sleeve portion (31), the second mounting portion (4) includes a second wall portion (42) connected to the second sleeve portion (41), and the pores (5) include first pores (51) penetrating through the first wall portion (32) and in fluid communication with the internal space (20) and second pores (52) penetrating through the second wall portion (42) and in fluid communication with the internal space (20).

5. The vibration damper (100) of claim 4, wherein: the first mounting portion (3) comprises a first protrusion (33) extending from the first wall portion (32) in an axial direction (M-M) and a first end cap (34) at an end of the first protrusion (33), the first protrusion (33) being provided with a first mounting rib (331) for mounting an external element, the fine hole (5) comprising a third fine hole (53) penetrating the first end cap (34) and being in fluid communication with the inner space (20); the second mounting portion (4) includes a second projection (43) extending from the second wall portion (42) in an axial direction (M-M) and a second end cap (44) located at an end of the second projection (43), the second projection (43) is provided with a second mounting rib (431) to mount an external element, and the fine hole (5) includes a fourth fine hole (54) penetrating the second end cap (44) and in fluid communication with the inner space (20).

6. The vibration damper (100) of claim 5, wherein: the first mounting portion (3) comprises a first cavity (30), the first cavity (30) being in fluid communication with the inner space (20) through the first aperture (51), the first cavity (30) being in fluid communication with an outer space through the third aperture (53); the second mounting portion (4) includes a second cavity (40), the second cavity (40) being in fluid communication with the interior space (20) through the second aperture (52), the second cavity (40) being in fluid communication with an exterior space through the fourth aperture (54).

7. The vibration damper (100') according to claim 2, wherein: the first mounting portion (3 ') includes a first wall portion (32') and a first projecting portion (33 ') projecting from the first wall portion (32'), the first projecting portion (33 ') being provided with a first mounting rib (331') to mount an external element; the second mounting portion (4 ') includes a second wall portion (42') and a second projection portion (43 ') projecting from the second wall portion (42'), the second projection portion (43 ') being provided with a second mounting rib (431') to mount an external member.

8. The vibration damper (100') according to claim 7, wherein: 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 of the cylindrical part (2 ') is provided with a first catching part (21') passing through the first through hole (321 ') to be caught with the first wall part (32'), and the other side of the cylindrical part (2 ') is provided with a second catching part (22') passing through the second through hole (421 ') to be caught with the second wall part (42').

9. The vibration damper (100') according to claim 7, wherein: the first projection (33 ') being provided with a first cavity (30') in fluid communication with the external space, the second projection (43 ') being provided with a second cavity (40') in fluid communication with the external space; the pores (5 ') include a first pore (51 ') extending through the first wall portion (32 ') to fluidly communicate the interior space (20 ') with the first cavity (30 '), and a second pore (52 ') extending through the second wall portion (42 ') to fluidly communicate the interior space (20 ') with the second cavity (40 ').

10. The vibration damper (100, 100') according to any of claims 2 to 9, wherein: the vibration damper (100, 100') is made of an elastically deformable material; the first mounting part (3, 3 ') and the second mounting part (4, 4 ') are symmetrically mounted at two ends of the cylindrical part (2, 2 '), and the first mounting part (3, 3 ') and the second mounting part (4, 4 ') have the same structure.