CN214946069U

CN214946069U - Sealed vibration isolator

Info

Publication number: CN214946069U
Application number: CN202023309531.9U
Authority: CN
Inventors: 季炯炯; 黄雪芹; 周洪梅; 蒋先龙
Original assignee: Nanjing Jienuo Environment Technology Co ltd
Current assignee: Nanjing Jienuo Environment Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-30
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a canned type isolator, be provided with the base of bottom plate including the center, have the casing that the isolator was constituteed to the upper cover on the base soon, the central trompil of upper cover, cap insert the casing through the trompil in, cap upper portion is equipped with the hexagonal circle. The outer diameter of the cap is sleeved with sealing rubber, the sealing rubber is arranged in a sink groove of the upper retainer ring, and the sealing rubber is respectively contacted with the cap and the upper cover to seal the upper part of the vibration isolator; the inner hole of the sealing rubber is provided with two circular arc-shaped lips which are wrapped on the outer diameter of the cap in an interference manner; two convex arc lips are arranged at the upper part of the sealing rubber, the two arc lips protrude the upper check ring, and the two arc lips are flattened when the upper cover presses the upper check ring. The utility model discloses increased sealing rubber and played waterproof dustproof effect between the upper cover of former isolator and last retaining ring, all rubber seal of this isolator all in the metal casing and do not bear vibration and strong impact basically, so rubber seal is difficult for ageing damage, has greatly improved the life of isolator.

Description

Sealed vibration isolator

Technical Field

The utility model relates to an electronic equipment vibration isolation buffer field specifically is a canned type isolator.

Background

At present, the so-called dustproof and waterproof vibration isolator is basically an external sealing type vibration isolator with a rubber sealing protective sleeve directly mounted outside the vibration isolator. Because the rubber seal cover is exposed outside, the rubber seal cover is easy to age and damage by climatic factors such as illumination and the like, and in addition, the rubber seal cover directly bears external force generated by vibration and strong impact, is easy to damage and is not easy to replace.

As shown in figure 1, the leakage points of an upper cover and an upper retainer ring are at two positions, wherein one position is a fit clearance between a cap and an inner hole of the upper retainer ring; the other part is a gap between the contact planes of the upper cover and the upper retaining ring, and particularly rain water and sand dust are more easily introduced into the vibration isolator in a vibration environment.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve prior art's problem, provide a canned type isolator, all rubber seal of this isolator all in the metal casing and do not bear vibration and strong impact basically, so rubber seal is difficult for ageing damage, has greatly improved the life of isolator.

The utility model comprises a base with a bottom plate at the center, a casing with an upper cover forming a vibration isolator is screwed on the base, the center of the upper cover is provided with a hole, a cap is inserted into the casing through the hole, a hexagonal ring is arranged at the upper part of the cap, the outer diameter of the cap is sleeved with sealing rubber, the sealing rubber is arranged in a sink groove of an upper retainer ring, the sealing rubber is respectively contacted with the cap and the upper cover to seal the upper part of the vibration isolator; the inner hole of the sealing rubber is provided with two circular arc-shaped lips which are wrapped on the outer diameter of the cap in an interference manner; two convex arc lips are arranged at the upper part of the sealing rubber, the two arc lips protrude the upper check ring, and the two arc lips are flattened when the upper cover presses the upper check ring.

The improved sealing rubber has V-shaped ring slot and three metal sheets clamped inside the V-shaped ring slot via elastic steel wire locking ring.

The hexagonal ring is further improved, an annular groove is formed in the hexagonal ring, and a first sealing ring is arranged in the annular groove and used for sealing leakage between the hexagonal ring and the bottom of the equipment; the upper part of the cap is provided with an annular groove, and the first sealing ring is used for sealing leakage between the hexagonal ring and the cap; the lower end of the external thread of the base is provided with an annular groove, and the second sealing ring is used for sealing a thread gap between the upper cover and the base; the inner thread of the base is provided with a tool withdrawal groove, the edge of the bottom plate is provided with an annular step, and the third sealing ring is wrapped on the step and used for sealing the thread gap between the base and the bottom plate.

The utility model has the advantages that:

1. all rubber sealing parts of the vibration isolator are arranged in the metal shell and basically do not bear vibration and strong impact, so that the rubber sealing parts are not easy to age and damage, and the service life of the vibration isolator is greatly prolonged.

2. The arc-shaped lip of the sealing rubber inner hole seals the outer diameter of the cap to play a double-insurance role, and seals a first leakage point. The two convex arc lips on the upper part of the sealing rubber seal the second leakage part, and the sealing structure makes full use of the elastic property of the sealing rubber.

3. The three-piece metal sheet in the V-shaped ring groove has certain pre-tightening compensation effect on the axial direction and the radial direction of the sealing rubber.

Drawings

Fig. 1 is a schematic view of a leak in the prior art.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the sealing rubber.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The structure of the utility model is as shown in figure 2, including the base 15, the base 15 bottom center is fixed with the bottom plate 16, the base top is fixed with the upper cover 7, the base 15, the bottom plate 16 and the upper cover 7 constitute the shell of this isolator jointly, the center hole of the upper cover 7 is internally inserted with an adjusting bolt 2, the upper portion of the adjusting bolt 2 is fixed with the cap 3, the lower portion of the cap 3 extends into the base 15 along the axial direction of the adjusting bolt 2, the adjusting nut 4 is screwed on the lower portion of the adjusting bolt 2, the spiral spring 14 is connected between the adjusting nut 4 and the bottom plate 16, the spiral spring 14 and the conical spring 13 form a parallel structure; a damping buffer reed 10 surrounding an outer flange of the cap 3 is arranged in an inner circle of the base 15, a rubber cylinder 11 is sleeved outside a cylinder formed by the damping buffer reed 10, a conical ring 8 is sleeved on the upper part of the damping buffer reed 10, an upper retaining ring 6 is arranged on the conical ring 8, sealing rubber 19 is arranged in a sinking groove of the upper retaining ring 6, two circular arc-shaped lips are arranged in an inner hole of the sealing rubber 19, and the lips are wrapped on the outer diameter of the cap in an interference manner as shown in fig. 3; two convex arc lips are arranged at the upper part of the sealing rubber, the two arc lips protrude the upper check ring, and the two arc lips are flattened when the upper cover presses the upper check ring. The 3-piece metal tightening ring 20 fitted in the V-shaped groove of the seal rubber 19 is tightened by an elastic wire lock ring B5.

The hexagonal ring is provided with an annular groove, and a first sealing ring B1 is arranged in the annular groove and used for sealing leakage between the hexagonal ring and the bottom of the equipment; an annular groove is formed in the upper portion of the cap, and a second sealing ring B2 is used for sealing leakage between the hexagonal ring and the cap; the lower end of the external thread of the base is provided with an annular groove, and a third sealing ring B3 is used for sealing a thread gap between the upper cover and the base; the internal thread of the base is provided with a tool withdrawal groove, the edge of the bottom plate is provided with an annular step, and a fourth sealing ring B4 is wrapped on the step and used for sealing the thread gap between the base and the bottom plate.

The utility model discloses the concrete application way is many, and the above-mentioned only is the preferred embodiment of the utility model, should point out, to ordinary skilled person in this technical field, under the prerequisite that does not deviate from the utility model discloses the principle, can also make a plurality of improvements, and these improvements also should be regarded as the utility model discloses a protection scope.

Claims

1. The utility model provides a canned type isolator, is provided with the base of bottom plate including the center, has revolved the casing that the isolator was constituteed to the upper cover on the base, the central trompil of upper cover, cap pass through the trompil insert the casing in, cap upper portion is equipped with hexagonal circle, its characterized in that: the outer diameter of the cap is sleeved with sealing rubber, the sealing rubber is arranged in a sink groove of the upper retainer ring, and the sealing rubber is respectively contacted with the cap and the upper cover to seal the upper part of the vibration isolator; the inner hole of the sealing rubber is provided with two circular arc-shaped lips which are wrapped on the outer diameter of the cap in an interference manner; two convex arc lips are arranged at the upper part of the sealing rubber, the two arc lips protrude the upper check ring, and the two arc lips are flattened when the upper cover presses the upper check ring.

2. The sealed vibration isolator according to claim 1, wherein: the sealing rubber is radially provided with a V-shaped ring groove, and the three metal sheets are clamped in the V-shaped ring groove through an elastic steel wire locking ring.

3. The sealed vibration isolator according to claim 1, wherein: the hexagonal ring is provided with an annular groove, and a first sealing ring is arranged in the annular groove and used for sealing leakage between the hexagonal ring and the bottom of the equipment; the upper part of the cap is provided with an annular groove, and the first sealing ring is used for sealing leakage between the hexagonal ring and the cap; the lower end of the external thread of the base is provided with an annular groove, and the second sealing ring is used for sealing a thread gap between the upper cover and the base; the inner thread of the base is provided with a tool withdrawal groove, the edge of the bottom plate is provided with an annular step, and the third sealing ring is wrapped on the step and used for sealing the thread gap between the base and the bottom plate.