CN2539020Y

CN2539020Y - High-pressure sealer

Info

Publication number: CN2539020Y
Application number: CN 02211865
Authority: CN
Inventors: 郑荣; 梁景鸿; 康守权
Original assignee: Shenyang Institute of Automation of CAS
Current assignee: Shenyang Institute of Automation of CAS
Priority date: 2002-05-22
Filing date: 2002-05-22
Publication date: 2003-03-05
Anticipated expiration: 2012-05-22

Abstract

The utility model relates to sealing technology, which is a high pressure sealing device concretely. The high pressure sealing device is arranged on pressurized capsules, which is characterized in that: a raised inclined plane is arranged on each side of the joint surface between the pressurized capsule body and the cover of the pressurized capsule; a O-shaped sealing ring is arranged on each inclined plane; at the lateral face of one O-shaped sealing ring is a supporting ring for the O-shaped sealing ring and at the lateral face of another O-shaped sealing ring is a pressing ring for the O-shaped sealing ring; a plurality of threaded holes are arranged on the supporting ring and a plurality of unthreaded holes are arranged on the pressing ring; the unthreaded holes on the pressing ring and the threaded holes on the supporting ring are corresponding to each other and are connected through screws. The utility model can be used to seal the external liquid medium with high pressure, in particular to the condition that needs to minimize the volume and the weight of the sealing device.

Description

A kind of high pressure seal

Technical field

The utility model relates to sealing technique, specifically a kind of seal arrangement that can bear the external high pressure liquid medium.

Background technique

Prevent that working medium from leaking or prevent that a kind of device or the measure of introduced contaminants intrusion machine and equipment inside are called seal arrangement from machine and equipment.At present, as the more common encapsulating method of Sealing two kinds of axial seal and radial seals are arranged with O-ring seals.Its sealing principle is that O-ring seals is placed in the suitable groove of design, utilizes compressible, the deformable characteristic of O-ring seals that the gap between the equipment junction plane is sealed, thereby reaches the purpose of sealing, and this is the common characteristic of O-ring seals Sealing Method.But above-mentioned two kinds of encapsulating methods all need to keep between junction plane enough firm connection.And under condition of high voltage, what enough firm connection directly caused is the increasing of seal arrangement volume and weight, and this brings difficulty can under some occasion the general arrangement of equipment.

The model utility content

Depend on the deficiency of junction plane join strength in order to overcome to seal whether to lose efficacy in the existing encapsulating method, the purpose of this utility model provides a kind of seal arrangement that can bear the external high pressure liquid medium, it can be particularly useful for the seal request under the situation of volume that as far as possible reduces seal arrangement and weight to the sealing of the high-pressure liquid medium of outside.

To achieve these goals, the technological scheme that its technical problem that solves the utility model adopts is: it is installed on the sealed compartment, respectively establish the inclined-plane of a projection in the junction plane both sides of sealed compartment body and plug hatch, an O-ring seals is placed at each place, inclined-plane, in the side of an O-ring seals is the O-ring seals support ring, is the O-ring seals hold-down ring in the side of another O-ring seals; Wherein establish a plurality of tapped holes on the support ring, establish a plurality of unthreaded holes on the hold-down ring, corresponding the putting in tapped hole position on the unthreaded hole on the hold-down ring and the support ring connects by screw.

The beneficial effects of the utility model are:

The physical dimension of the utility model seal arrangement junction plane and the size of external pressure are irrelevant, have played the purpose that reduces seal arrangement joint volume and weight under condition of high voltage.It can be particularly useful for the seal request under the situation of volume that as far as possible reduces seal arrangement and weight to the sealing of the high-pressure liquid medium of outside.

Description of drawings

Fig. 1 is a longitudinal section of the present utility model schematic diagram of structure.

Embodiment

Below in conjunction with following examples and accompanying drawing in detail the utility model is described in detail.

As shown in Figure 1, the utility model is installed on the sealed compartment, respectively process the inclined-plane of a projection in the sealed compartment body 1 and the junction plane both sides of plug hatch 6, an O-ring seals 3 is placed at each place, inclined-plane, both sides at O-ring seals 3, one end is that O-ring seals support ring 2, one ends are O-ring seals hold-down rings 4; Wherein process several tapped holes in advance on the support ring 2, process some unthreaded holes on the hold-down ring in advance, the unthreaded hole on the hold-down ring 4 should be corresponding one by one with tapped hole on the support ring 2; When assembling, need only support ring 2 and hold-down ring 4 be coupled together with housing screw 5, two O-ring seals 3 with the inside compress simultaneously, can realize sealing.

The utility model is that sealed compartment body 1 and plug hatch 6 are close to mutually because of the direction of external pressure, so housing screw 5 only plays and plug hatch 6 is connected with sealed compartment body 1 and with the effect of O-ring seals 3 pretensions, has nothing to do with the size of external pressure.The stability of sealed compartment body 1 and plug hatch 6 like this, when external pressure is very big, also need not strengthen the size of screw 5, as long as enough can be used safely.

Junction plane between described sealed compartment body 1 and the plug hatch 6 should have certain planeness and surface roughness to guarantee reliable applying between the two, and the cross section in the space of sealed compartment body 1 junction plane place boss and 2 formation of O-ring seals support ring should match with O-ring seals 3 cross sections.

During uniform housing screw 5, each screw 5 should evenly be depressed, in order to avoid O-ring seals 3 is caused damage on screwing circumference.

The utility model adopts O-ring seals 3, the active force of external pressure will impel junction plane to be close to mutually during because of sealing, do not need connection very firm between junction plane, so can not only bear at equipment and realize sealing reliably under the situation of high pressure, and can reduce the volume and weight of seal arrangement greatly.

Claims

1 one kinds of high pressure seals, be installed on the sealed compartment, it is characterized in that: respectively establish the inclined-plane of a projection in the sealed compartment body (1) and the junction plane both sides of plug hatch (6), an O-ring seals (3) is placed at each place, inclined-plane, in the side of an O-ring seals (3) is O-ring seals support ring (2), is O-ring seals hold-down ring (4) in the side of another O-ring seals (3); Wherein establish a plurality of tapped holes on the support ring (2), hold-down ring is established a plurality of unthreaded holes on (4), and the unthreaded hole on the hold-down ring (4) is corresponding with the tapped hole position on the support ring (2), connects by screw (5).