CN208707243U - Plastic film capicitor novel sealing fixture - Google Patents

Abstract

The utility model discloses plastic film capicitor novel sealing fixtures, including bellows, the both ends of the bellows are fixedly installed with fixture outer seal, vacuum clamp flange is fixedly installed on the outside of the fixture outer seal, and one of vacuum clamp flange is fixedly installed with vacuum clamp end cap far from one end of fixture outer seal, the surface of vacuum clamp flange one end is socketed with vacuum clamp.The utility model passes through bellows, fixture outer seal, vacuum clamp flange, vacuum clamp end cap, vacuum clamp, clamp body, fixture platen, the setting for dividing valve gear ring, cylinder head bolt, sealing plain cushion and O-ring seal, preferably the both ends of bellows can be sealed and be loaded, and diversity can be taken into account, the effect that is loaded is good, solving existing plastic ripple pipe clamp cannot be considered in terms of the diversity of bellows when bellows both ends are sealed and are loaded simultaneously, and it is insecure to be loaded, the problem of reducing sealing reliability.

Description

Plastic film capicitor novel sealing fixture

Technical field

The utility model relates to mechanotronics fields, specially plastic film capicitor novel sealing fixture.

Background technique

In highway, tunnel, during bridge construction, it is often necessary to pre- to bury various cables, electric wire, connection etc., these Cable is typically inserted into pre-buried plastic film capicitor, and plastic film capicitor can protect cable long-term safety to run, for reinforced plastics The intensity of bellows, in the standing ripple for setting some rules of the outer wall and inner wall of plastic tube, plastic film capicitor there are many specification with Size.

It in the quality control standards (QCS) of plastic film capicitor, needs to detect the leakproofness and resistance to drawing of plastic film capicitor, moulds The leakproofness of bellows is expected with adding the mode of positive air pressure or negative pressure to examine, this test needs to carry out plastic film capicitor both ends Sealing is loaded, and forms it into confined space, a kind of resistance to drawing plastic film capicitor pull-out test machine (pulling force of plastic film capicitor Testing machine) it carries out, this test, which needs to be clamped plastic film capicitor both ends, to be loaded, it is made to bear pulling force during stretching It will not pull, existing plastic ripple pipe clamp cannot be considered in terms of the multiplicity of bellows when bellows both ends are sealed and are loaded Property, and it is insecure to be loaded, and reduces sealing reliability.

Utility model content

The purpose of this utility model is to provide plastic film capicitor novel sealing fixture, has and be loaded securely, leakproofness is high Advantage, solving existing plastic ripple pipe clamp cannot be considered in terms of the more of bellows when bellows both ends are sealed and are loaded Sample, and it is insecure to be loaded, the problem of reducing sealing reliability.

To achieve the above object, the utility model provides the following technical solutions: plastic film capicitor novel sealing fixture, including wave Line pipe, the both ends of the bellows are fixedly installed with fixture outer seal, are fixedly installed on the outside of the fixture outer seal true Empty clamp flange, and one of vacuum clamp flange is fixedly installed with vacuum clamp end cap far from one end of fixture outer seal, The surface of vacuum clamp flange one end is socketed with vacuum clamp, the two sides of described bellows one end inner cavity and is located at two folders Be fixedly installed with clamp body between tool outer seal, be provided with fixture platen on the inside of the clamp body, the clamp body up and down The both ends and side for being located at fixture platen is fixedly installed with a point valve gear ring, the inner wall of the side for dividing valve gear ring and bellows is tight Contiguity touching.

Preferably, the fixture platen is fixedly connected by cylinder head bolt between clamp body and fixture outer seal, And one end of cylinder head bolt is located at the inside of vacuum clamp flange.

Preferably, filled with sealing plain cushion between the bellows and the junction of fixture outer seal.

Preferably, the both ends of the clamp body are in contact with the side of fixture outer seal, outside the clamp body and fixture The position being in contact is covered filled with O-ring seal.

Preferably, the side of fixture outer seal bottom is fixedly installed with drawing connecting pin.

Compared with prior art, the beneficial effects of the utility model are as follows:

1, the utility model by bellows, fixture outer seal, vacuum clamp flange, vacuum clamp end cap, vacuum clamp, Clamp body, fixture platen divide valve gear ring, cylinder head bolt, the setting for sealing plain cushion and O-ring seal, can be preferably to wave The both ends of line pipe, which are sealed, to be loaded, and can take into account diversity, and the effect that is loaded is good, while solving existing plastic film capicitor Fixture cannot be considered in terms of the diversity of bellows when bellows both ends are sealed and are loaded, and it is insecure to be loaded, and reduce close The problem of sealing reliability.

2, the utility model passes through the fixture designed using internal diameter as design considerations (national Specification value), with outer wall wave Line structure is uncorrelated, improves the versatility of fixture, is loaded using three valve conical banda tooth packings, radial dilatation is uniform, and compression can It leans on, is loaded securely, sealing pads compound closure mode using radial direction seal ring and end face seal, has sufficiently taken into account the multiplicity of bellows Property, sealing reliability is effectively raised, is more replaced a part, fixture is converted to plastic film capicitor drawing test clamp, a set of Fixture is suitable for two kinds of tests, improves the application range of fixture.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model.

In figure: 1 bellows, 2 fixture outer seals, 3 vacuum clamp flanges, 4 vacuum clamp end caps, 5 vacuum clamps, 6 fixtures Body, 7 fixture platens, 8 points of valve gear rings, 9 cylinder head bolts, 10 sealing plain cushions, 11O type sealing ring, 12 drawing connecting pins.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Referring to Fig. 1, plastic film capicitor novel sealing fixture, including bellows 1, the connection of bellows 1 and fixture outer seal 2 Between filled with sealing plain cushion 10, the both ends of bellows 1 are fixedly installed with fixture outer seal 2,2 bottom of fixture outer seal Side is fixedly installed with drawing connecting pin 12, by the fixture of design using internal diameter as design considerations national Specification value, It is uncorrelated to outer wall ripple struction, the versatility of fixture is improved, is loaded using three valve conical banda tooth packings, radial dilatation is equal It is even, it compresses reliably, is loaded securely, sealing pads compound closure mode using radial direction seal ring and end face seal, has sufficiently taken into account wave The diversity of line pipe effectively raises sealing reliability, more replaces a part, and fixture is converted to plastic film capicitor pull-out test Fixture, a set of fixture is suitable for two kinds of tests, improves the application range of fixture, in the professional standard of plastic film capicitor, Specification is divided into DN50, DN60, DN75, DN90, DN100, and totally 7 kinds of DN115, DN130, numerical tabular shows the internal diameter of bellows, and wave The size of the outer diameter of line pipe, ripple, density, spacing do not do clearly stipulate that the plastic film capicitor external dimensions of each enterprise production simultaneously It is not exactly the same, and corrugated tube end fixture needs tightly cooperate with bellows, the bellows fixture that this allows for design is a variety of Multiplicity, fixture used in the bellows of the same specification of different enterprises production may be different, cannot be general, this is for producing bellows The enterprise of fixture causes difficulty, and the outside of fixture outer seal 2 is fixedly installed with vacuum clamp flange 3, and one of vacuum card Hoop flange 3 is fixedly installed with vacuum clamp end cap 4, the surface set of 3 one end of vacuum clamp flange far from one end of fixture outer seal 2 It is connected to vacuum clamp 5, the two sides of 1 one end inner cavity of bellows and is fixedly installed with clamp body between two fixture outer seals 2 6, the both ends of clamp body 6 are in contact with the side of fixture outer seal 2, and the position that clamp body 6 is in contact with fixture outer seal 2 is filled out Filled with O-ring seal 11, the inside of clamp body 6 is provided with fixture platen 7, fixture platen 7 and clamp body 6 and fixture outer seal 2 Between be fixedly connected by cylinder head bolt 9, and one end of cylinder head bolt 9 is located at the inside of vacuum clamp flange 3, fixture The upper and lower ends of body 6 and be located at fixture platen 7 side be fixedly installed with a point valve gear ring 8, divide side and the bellows of valve gear ring 8 1 inner wall is in close contact, and passes through bellows 1, fixture outer seal 2, vacuum clamp flange 3, vacuum clamp end cap 4, vacuum clamp 5, clamp body 6, fixture platen 7, divide valve gear ring 8, cylinder head bolt 9, the setting for sealing plain cushion 10 and O-ring seal 11, can be with Preferably the both ends of bellows are sealed and are loaded, and diversity can be taken into account, the effect that is loaded is good, while solving existing Plastic ripple pipe clamp cannot be considered in terms of the diversity of bellows when bellows both ends are sealed and are loaded, and be loaded loosely Gu the problem of reducing sealing reliability.

The standardized element used in this specification arrived can commercially, the specific connection type of each part The conventional means such as mature in the prior art bolt, rivet, welding are all made of, no longer make specific narration herein.

In use, the fixture is using 1 internal diameter of bellows as foundation, it is loaded clamping using internal diameter, three valve conical banda tooth packings expand 1 inner wall of bellows is compressed after, bears axial tension, this structure is uncorrelated to 1 outer diameter of bellows, improves the logical of fixture Sealing reliability is effectively raised, for spiral using sealing plain cushion 10 and 11 compound closure mode of O-ring seal with property Sylphon seal plain cushion 10 cannot seal, and at this moment O-ring seal 11 works, not usually for thin-wall corrugated tube end face, O-shaped close Seal 11 cannot seal, and at this moment seal plain cushion 10 and work, and for straight grain bellows, seal plain cushion 10 and O-ring seal 11 is total It is same to work.

In summary: the plastic film capicitor novel sealing fixture solves existing plastic ripple pipe clamp to bellows The problem of both ends are sealed the diversity that cannot be considered in terms of bellows when being loaded, and it is insecure to be loaded, and reduce sealing reliability.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. plastic film capicitor novel sealing fixture, including bellows (1), it is characterised in that: the both ends of the bellows (1) are fixed It is equipped with fixture outer seal (2), is fixedly installed with vacuum clamp flange (3) on the outside of the fixture outer seal (2), and wherein one A vacuum clamp flange (3) is fixedly installed with vacuum clamp end cap (4) far from the one end of fixture outer seal (2), the vacuum card Hoop flange (3) one end surface be socketed with vacuum clamp (5), the two sides of bellows (1) one end inner cavity and be located at two folder It is fixedly installed with clamp body (6) between tool outer seal (2), is provided with fixture platen (7) on the inside of the clamp body (6), it is described The upper and lower ends of clamp body (6) and be located at fixture platen (7) side be fixedly installed with a point valve gear ring (8), it is described to divide valve gear ring (8) inner wall of side and bellows (1) is in close contact.

2. plastic film capicitor novel sealing fixture according to claim 1, it is characterised in that: the fixture platen (7) and folder It is specifically fixedly connected by cylinder head bolt (9) between (6) and fixture outer seal (2), and one end position of cylinder head bolt (9) In the inside of vacuum clamp flange (3).

3. plastic film capicitor novel sealing fixture according to claim 1, it is characterised in that: the bellows (1) and fixture Filled with sealing plain cushion (10) between the junction of outer seal (2).

4. plastic film capicitor novel sealing fixture according to claim 1, it is characterised in that: the both ends of the clamp body (6) It is in contact with the side of fixture outer seal (2), the position that the clamp body (6) is in contact with fixture outer seal (2) is filled with O Type sealing ring (11).

5. plastic film capicitor novel sealing fixture according to claim 1, it is characterised in that: fixture outer seal (2) bottom The side in portion is fixedly installed with drawing connecting pin (12).