CN204879259U

CN204879259U - Quick end cap of coupling

Info

Publication number: CN204879259U
Application number: CN201520639549.5U
Authority: CN
Inventors: 黄薛嫔
Original assignee: CHONGQING KEJIE INDUSTRIAL Co Ltd
Current assignee: CHONGQING KEJIE INDUSTRIAL Co Ltd
Priority date: 2015-08-24
Filing date: 2015-08-24
Publication date: 2015-12-16
Anticipated expiration: 2025-08-24

Abstract

The utility model discloses a quick end cap of coupling, include that the centre is provided with the backing plate of via hole, passes via hole and backing plate sliding fit's dead man, with the preceding terminal surface fixed connection's of dead man the briquetting and the rear end articulated rocking arm of one end and dead man, the overcoat is provided with the rubber circle in the dead man between briquetting and the backing plate, the rocking arm passes through the lever principle drive dead man axial motion makes the briquetting axial compress tightly its inflation of rubber circle messenger, apply a pulling force that the axial is outside through utilizing the rocking arm to the dead man, the clamp plate rearward movement is and extrusion rubber circle for the rubber circle that lies in between briquetting and the backing plate is pushed and the inflation, realizes the shutoff to the coupling, and be provided with the fulcrum on the rocking arm, and can easily realize applying great pulling force to the dead man through lever principle, guarantee that the rubber cast becomes great, it is sealed effectual, improve the precision that the gas tightness detected to simple structure installs and removes the convenience.

Description

Pipe joint fast cap

Technical field

The utility model relates to a kind of blocking device, is specifically related to a kind of pipe joint fast cap.

Background technique

Intake manifold is the main body part of petrol engine intake system, and gas handling system decides the intake efficiency of motor and each inflation uniformity, and having engine performance very largely affects doubt, being fixed on during intake manifold in the cylinder head of motor, is complex-shaped hollow product, bears heat and the vibration of head combustion chamber fuel combustion transmission, SI Engine 90% all adopts grog intake manifold both at home and abroad at present, and the weight of grog intake manifold is 40% of aluminum intake manifold, alleviates motor complete machine weight, and in the industrial production, need the detection plastic air intake manifold produced being carried out to some row, wherein the air-leakage test of intake manifold is important detection, namely under pressure, whether detection water channel and air flue have leakage, and intake manifold is generally provided with pipe joint, need to carry out shutoff to pipe joint when detecting, and closeouts installation process of the prior art is complicated and mounting process is higher, considerably increase blocking time and plugging effect is bad, especially when the out-of-flatness of pipe joint end face, shutoff face of easily causing is leaked, air-leakage test is inaccurate, increase labor intensity, affect the working efficiency of operator.

Therefore, for overcoming the above problems, need a kind of pipe joint fast cap, plug installation and removal efficiency can be improved, and strengthen the plugging effect to pipe joint in intake manifold, ensure that shutoff place is not easily leaked, improve the precision of air-leakage test, and structure is simple, mounting or dismounting are convenient.

Model utility content

In view of this, the purpose of this utility model overcomes defect of the prior art, pipe joint fast cap is provided, plug installation and removal efficiency can be improved, and the plugging effect strengthened pipe joint in intake manifold, ensures that shutoff place is not easily leaked, improves the precision of air-leakage test, and structure is simple, mounting or dismounting are convenient.

Pipe joint fast cap of the present utility model, comprise the hinged rocking arm in rear end that centre is provided with the backing plate of via hole, the dead man be slidably matched through described via hole and backing plate, the briquetting be fixedly connected with the front-end face of dead man and one end and dead man, be coated at dead man between described briquetting and backing plate and be provided with rubber ring, described rocking arm drives described dead man axial motion by lever principle and makes briquetting axial compression rubber ring make it expand.

Further, be provided with the lining being coated at dead man between described rubber ring and backing plate, one end of described lining is fixedly connected with backing plate.

Further, described dead man and rocking arm are by bolted splice, and the rounded end end face of described rocking arm is semicircle cambered surface, and the articulating point on described rounded end is less than the radius of curvature of semicircle cambered surface to the distance of described semi-circle vertex of surface.

Further, described articulating point is not on the axis of symmetry of rocking arm.

Further, described rounded end end face caves inward vertically and forms groove for embedding dead man, described bolt be horizontally through described rocking arm and dead man and by rocking arm and dead man hinged.

The beneficial effects of the utility model are: a kind of pipe joint fast cap disclosed in the utility model, by utilizing rocking arm, the outside pulling force of an axis is applied to dead man, described pressing plate moves backward and extrudes rubber ring, make the rubber ring between briquetting and backing plate be extruded and expand, realize the shutoff to pipe joint; And rocking arm is provided with fulcrum, easily can realize applying larger pulling force to dead man by lever principle, ensure that rubber ring deformation is comparatively large, good sealing effect, improve the precision of air-leakage test, and structure is simple, mounting or dismounting are convenient.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further described:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the B-B sectional view of Fig. 1;

Fig. 3 is the A-A sectional view of Fig. 1.

Embodiment

Fig. 1 is structural representation of the present utility model, Fig. 2 is the B-B sectional view of Fig. 1, Fig. 3 is the A-A sectional view of Fig. 1, as shown in the figure, pipe joint fast cap in the present embodiment, comprise the backing plate 1 that centre is provided with via hole, through the dead man 2 that described via hole and backing plate 1 are slidably matched, the Rocker arm 4 that the rear end of the briquetting 3 be fixedly connected with the front-end face of dead man 2 and one end and dead man 2 is hinged, be coated at dead man 2 between described briquetting 3 and backing plate 1 and be provided with rubber ring 5, described Rocker arm 4 drives the axial motion of described dead man 2 by lever principle and makes briquetting 3 axial compression rubber ring 5 make it expand, described rubber ring 5 is O RunddichtringO, and described backing plate 1 is for rectangular and one end is arc, and via hole is arranged at arc tips, and during installation, convenience hand fixes backing plate 1 and arc tips occupation of land is little, is suitable for narrow space, during use, by briquetting 3 and rubber ring 5 Inserting Tube joint, and backing plate 1 is just being pressed on the port surface of pipe joint, inwardly represents the direction pointing to briquetting 3 from dead man 2, by utilizing Rocker arm 4 to apply the outside pulling force of an axis to dead man 2, described pressing plate moves backward and extrudes rubber ring 5, makes the rubber ring 5 between briquetting 3 and backing plate 1 be extruded and expand, realizes the shutoff to pipe joint, and Rocker arm 4 is provided with fulcrum, easily can realize applying larger pulling force to dead man 2 by lever principle, ensure that rubber ring 5 deformation is comparatively large, good sealing effect, improve the precision of air-leakage test, and structure is simple, mounting or dismounting are convenient.

In the present embodiment, be provided with the lining 6 being coated at dead man 2 between described rubber ring 5 and backing plate 1, one end of described lining 6 is fixedly connected with backing plate 1; Lining 6 and can adopting of backing plate 1 are welded and fixed, and can increase rubber ring 5 Inserting Tube tab depth by lining 6, and shutoff is fixing also more stable, avoid plug to loosen.

In the present embodiment, described dead man 2 is hinged by bolt 7 with Rocker arm 4, and the rounded end end face of described Rocker arm 4 is semicircle cambered surface, and the articulating point on described rounded end is less than the radius of curvature of semicircle cambered surface to the distance of described semi-circle vertex of surface; Articulating point is the position being arranged at the hinging hole that Rocker arm 4 passes for bolt 7, before not moving dead man 2, described Rocker arm 4 is perpendicular to backing plate 1, when rotation Rocker arm 4 makes Rocker arm 4 be parallel to backing plate 1, rubber ring 5 is extruded expansion, and can realize laborsaving extruding rubber ring 5 by above-mentioned lever construction, structure is simple, easy to make, with low cost.

In the present embodiment, described articulating point is not on the axis of symmetry of Rocker arm 4, by articulating point is arranged at outside the axis of symmetry of Rocker arm 4, make when Rocker arm 4 is rotated towards different direction and makes the parallel backing plate 1 of Rocker arm 4, because on Rocker arm 4, resistance arm is different, make rubber ring 5 different by the distance of axial compression, Rocker arm 4 sense of rotation can be selected for the pipe joint of different tube diameters or different shutoff pressure demand, increase the applicability of described plug.

In the present embodiment, described rounded end end face caves inward vertically and forms groove 8 for embedding dead man 2, described bolt 7 be horizontally through described Rocker arm 4 and dead man 2 and by Rocker arm 4 and dead man 2 hinged; By described dead man 2 is embedded Rocker arm 4 rounded end, be convenient to hinged bolt 7 and install and fix, make described bolt 7 stress balance stablize simultaneously, ensure that dead man 2 friction in described via hole is little.

What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.

Claims

1. a pipe joint fast cap, it is characterized in that: comprise the hinged rocking arm in rear end that centre is provided with the backing plate of via hole, the dead man be slidably matched through described via hole and backing plate, the briquetting be fixedly connected with the front-end face of dead man and one end and dead man, be coated at dead man between described briquetting and backing plate and be provided with rubber ring, described rocking arm drives described dead man axial motion by lever principle and makes briquetting axial compression rubber ring make it expand.

2. pipe joint fast cap according to claim 1, it is characterized in that: be provided with the lining being coated at dead man between described rubber ring and backing plate, one end of described lining is fixedly connected with backing plate.

3. pipe joint fast cap according to claim 2, it is characterized in that: described dead man and rocking arm pass through bolted splice, the rounded end end face of described rocking arm is semicircle cambered surface, and the articulating point on described rounded end is less than the radius of curvature of semicircle cambered surface to the distance of described semi-circle vertex of surface.

4. pipe joint fast cap according to claim 3, is characterized in that: described articulating point is not on the axis of symmetry of rocking arm.

5. pipe joint fast cap according to claim 4, is characterized in that: described rounded end end face caves inward vertically and forms groove for embedding dead man, described bolt be horizontally through described rocking arm and dead man and by rocking arm and dead man hinged.