CN209012412U - One kind being directed to cylindrical shape product plugging device - Google Patents

Abstract

The utility model provide it is a kind of the outer circle of product is sealed by applying axial force for cylindrical shape product plugging device, structure simply, low manufacture cost, and air-tightness is good.It includes ontology, the ontology it is open at one end, and it is equipped with inner cavity, the inner cavity includes the first cavity of inner end, the second cavity of middle-end, outer end third cavity, the inner wall upper cover of the outer end third cavity is equipped with end cap, the front end face of the end cap is located at the inside of the outer end third cavity, the medial side bulge loop of piston block is located in the axial length region of second cavity of middle-end, the outer ring surface of the medial side bulge loop is set with the first sealing ring, first sealing ring is close to the inner wall arrangement of second cavity of middle-end, it further include having venthole on the ontology, the venthole is connected to the front end face of the medial side bulge loop along vent tracks, in cavity between the front end face of the second cavity of middle-end, the piston block further includes front ontology, aft-body.

Description

One kind being directed to cylindrical shape product plugging device

Technical field

The utility model relates to the technical fields that cylinder product blocks, specially a kind of to block dress for cylindrical shape product It sets.

Background technique

When existing cylinder product blocks progress air tightness test, need to apply in the outer ring week of product uniform radial Power, this complex structural designs, cost of manufacture is high, and is easy to produce leakage.

Summary of the invention

In view of the above-mentioned problems, the utility model provides one kind for cylindrical shape product plugging device, pass through application Axial force is sealed the outer circle of product, and structure is simple, low manufacture cost, and air-tightness is good.

One kind being directed to cylindrical shape product plugging device, it is characterised in that: it includes ontology, and one end of the ontology is opened Mouth is simultaneously equipped with inner cavity, and the inner cavity includes the first cavity of inner end, the second cavity of middle-end, outer end third cavity, the outer end The inner wall upper cover of third cavity is equipped with end cap, and the front end face of the end cap is located at the inside of the outer end third cavity, piston block Medial side bulge loop be located in the axial length region of second cavity of middle-end, the outer ring surface of the medial side bulge loop is set with First sealing ring, first sealing ring are close to the inner wall arrangement of second cavity of middle-end, further include on the ontology have it is logical Stomata, the venthole are connected to the front end face of the front end face of the medial side bulge loop, the second cavity of middle-end along vent tracks Between cavity in, the piston block further includes front ontology, aft-body, and the inner end outer ring surface of the front ontology is set with Two O-rings, second O-ring are close to the internal ring wall arrangement of first cavity of inner end, the outer end outer ring of the outer body Surface cover is equipped with third O-ring, and the third O-ring is close to the internal ring wall arrangement of the end cap, the inner cavity internal plug dress of the end cap There is the rubber ring with centre bore, the rear end face of the rear end ontology presses the rubber ring under stress.

It is further characterized by:

The back-end central of the end cap is provided with positioning spigot, between the positioning spigot and the rear end face of the rubber ring It is provided with rear baffle, preceding baffle is provided between the front end face of the rubber ring and the rear end face of the medial side bulge loop, ensures Medial side bulge loop uniformly forces in rubber ring；

The end cap is threadedly coupled the internal ring wall of the outer end third cavity, marks closely screw and extends radially through the third cavity Outer wall after be attached to the outer circumferential surface of the end cap, it is ensured that the installation of end cap is solid and reliable.

After adopting the above technical scheme, operator will need product to put into the centre bore of device rubber ring, gas source is connected, is led to Stomata ventilation, air pressure push piston block to move backward, and baffle travels forward before driving, and squeeze rubber ring, and rubber ring is made to generate shape Become, hold product tightly, realizes sealing；When needing to unclamp product, gas source is closed, rubber ring is resetted by natural resiliency, to make Piston block and preceding baffle return to original position, and operator splits out product；It is sealed the outer circle of product by applying axial force, Its structure is simple, low manufacture cost, and air-tightness is good.

Detailed description of the invention

Fig. 1 is the main view schematic cross-sectional view of the utility model；

Title corresponding to serial number is as follows in figure:

Ontology 1, the first cavity of inner end 2, the second cavity of middle-end 3, outer end third cavity 4, end cap 5, positioning spigot 51, piston Block 6, medial side bulge loop 61, front ontology 62, aft-body 63, the first sealing ring 7, venthole 8, vent tracks 9, cavity 10, Second O-ring 11, rubber ring 13, rear baffle 14, preceding baffle 15, marks closely screw 16 at third O-ring 12.

Specific embodiment

One kind being directed to cylindrical shape product plugging device, sees Fig. 1: it includes ontology 1, and ontology 1 open at one end is simultaneously equipped with Inner cavity, inner cavity include the first cavity of inner end 2, the second cavity of middle-end 3, outer end third cavity 4, outer end third cavity 4 it is interior Wall upper cover is equipped with end cap 5, and the front end face of end cap 5 is located at the inside of outer end third cavity 4, and medial side bulge loop 61 of piston block 6 In in the axial length region of the second cavity of middle-end 3, the outer ring surface of medial side bulge loop 61 is set with the first sealing ring 7, and first is close The inner wall arrangement of the second cavity of middle-end 3 is close in seal 7, further includes having venthole 8 on ontology 1, venthole 8 is along vent tracks 9 It is connected in the cavity 10 between the front end face of medial side bulge loop 61, the front end face of the second cavity of middle-end 3, before piston block 6 further includes Portion's ontology 62, aft-body 63, the inner end outer ring surface of front ontology 62 are set with the second O-ring 11, and the second O-ring 11 is close to interior The internal ring wall of the first cavity 2 is held to arrange, the outer end outer ring surface of outer body 63 is set with third O-ring 12, and third O-ring 12 is tight The internal ring wall arrangement of end cap 5 is pasted, the inner cavity internal plug of end cap 5 is equipped with the rubber ring 13 with centre bore, the rear end of rear end ontology 63 Press rubber ring 13 under stress in face.

The back-end central of end cap 5 is provided with positioning spigot 51, is arranged between positioning spigot 51 and the rear end face of rubber ring 13 There is rear baffle 14, baffle 15 before being provided between the front end face of rubber ring 13 and the rear end face of medial side bulge loop 61 ensures middle part Side bulge loop 61 uniformly forces in rubber ring 13；

End cap 5 is threadedly coupled the internal ring wall of outer end third cavity 4, marks closely the outer wall that screw 16 extends radially through third cavity 4 It is attached to the outer circumferential surface of end cap 5 afterwards, it is ensured that the installation of end cap 5 is solid and reliable.

Its working principles are as follows: operator will need product to put into the centre bore of device rubber ring, gas source, venthole are connected Ventilation, air pressure push piston block to move backward, and baffle travels forward before driving, and squeeze rubber ring, and rubber ring is made to generate deformation, embrace Tight product realizes sealing；When needing to unclamp product, gas source is closed, rubber ring is resetted by natural resiliency, to make piston block Original position is returned to preceding baffle, operator splits out product；It is sealed the outer circle of product by applying axial force, structure Simply, low manufacture cost, and air-tightness is good.

The closure function to cylindrical shape product, such as the offline test of new-energy automobile power assembly may be implemented in this technology In, it needs to block triple line to do airtight test.This technology realizes the closure of three-phase line end, operation using pneumatic mode Convenient high-efficient, sealing characteristics is good.This technology pushes internal piston by external air source, and piston pushes extruding rubber ring to make rubber Circle shrinks deformation, to hold circle product external tightly, realizes sealing function.

Specific embodiment of the utility model is described in detail above, but content is only what the utility model was created Preferred embodiment should not be construed as limiting the practical range of the utility model creation.All create according to the utility model is applied All the changes and improvements made by range etc., shall still fall within the scope of this patent.

Claims (3)

1. one kind be directed to cylindrical shape product plugging device, it is characterised in that: it includes ontology, the ontology it is open at one end, And it is equipped with inner cavity, the inner cavity includes the first cavity of inner end, the second cavity of middle-end, outer end third cavity, the outer end the The inner wall upper cover of three cavitys is equipped with end cap, and the front end face of the end cap is located at the inside of the outer end third cavity, piston block Medial side bulge loop is located in the axial length region of second cavity of middle-end, and the outer ring surface of the medial side bulge loop is set with One sealing ring, first sealing ring are close to the inner wall arrangement of second cavity of middle-end, further include having ventilation on the ontology Hole, the venthole are connected between the front end face of the front end face of the medial side bulge loop, the second cavity of middle-end along vent tracks Cavity in, the piston block further includes front ontology, aft-body, and the inner end outer ring surface of the front ontology is set with second O-ring, second O-ring are close to the internal ring wall arrangement of first cavity of inner end, the outer end outer ring surface of the outer body It is set with third O-ring, the third O-ring is close to the internal ring wall arrangement of the end cap, and the inner cavity internal plug of the end cap is equipped with The rear end face of rubber ring with centre bore, the rear end ontology presses the rubber ring under stress.

2. as described in claim 1 a kind of for cylindrical shape product plugging device, it is characterised in that: the rear end of the end cap It is provided centrally with positioning spigot, rear baffle, the rubber are provided between the positioning spigot and the rear end face of the rubber ring Preceding baffle is provided between the front end face of circle and the rear end face of the medial side bulge loop.

3. as claimed in claim 1 or 2 a kind of for cylindrical shape product plugging device, it is characterised in that: the end cap spiral shell Line connects the internal ring wall of the outer end third cavity, mark closely screw extend radially through be attached to after the outer wall of the third cavity it is described The outer circumferential surface of end cap.