CN205938290U

CN205938290U - Quick -operation joint's integral type inner core

Info

Publication number: CN205938290U
Application number: CN201620795672.0U
Authority: CN
Inventors: 林仁撑
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-07-27
Filing date: 2016-07-27
Publication date: 2017-02-08
Anticipated expiration: 2026-07-27

Abstract

The utility model belongs to the technical field of quick -operation joint's technique and specifically relates to a quick -operation joint's integral type inner core is related to, including interior casing, be equipped with the throat end on the rear side port of interior casing, form the step face between the inner chamber wall of throat end and interior casing, interior casing is as an organic whole to be made, and the inner shell is internal by preceding oil blanket base, first oil blanket, separator, the second oil blanket, the rear end face and the step face subsides tight fit of second oil blanket installed in proper order after to. The advantage is: the utilization becomes the inner shell system structure of integral type, carry out corresponding optimization and cooperate the structure of integral type to assemble at the subassembly with inside, make when assembling this inner core in quick -operation joint, equipment labour saving and time saving, the machining precision requires lowerly, save a large amount of costs, the service life of the product is prolonged, and assemble very convenient and fast, the simultaneously sealed splendid inner core of effect, the adaptation degree is unusual height also, can be adapted to multiple quick -operation joint's installation, the dismouting is changed and the maintenance all becomes very convenient.

Description

The integral type inner core of snap joint

Technical field

This utility model is related to the technical field of snap joint, especially relates to a kind of integral type inner core of snap joint.

Background technology

The application of snap joint makes pipeline connection technology more ripe, especially directly-inserted quick quick coupling, in daily life It is used widely in work and the equipment of industrial product.Directly-inserted quick quick coupling is compared and is connected using heat melting device, and bonding strength is high, resists Pinking is good, and connecting portion is disposably clasped, and overpressure is bigger, make bore expand counter so that it is detained tighter, it is to avoid pine The probability of dynamic and leak, and without hot melt, it is to avoid Site Welding job execution is painstaking, and quick for installation, the power saving that saves time saves Work.

Existing traditional snap joint, structure is relatively complicated, and as disclosed in Chinese patent literature, one kind quickly connects Head, Publication No. CN102788213A, including having the body of interface channel and there is the clip assembly of right half-turn, at least one Described interface channel oral area is provided with a clip assembly, is additionally provided with clip assembly correspondingly in a tubular form in interface channel Inner housing and inner housing and adapter lateral surface can be made to form the seal ring assembly sealing；The outer end of described inner housing and right half Pass through between circle to make right half-turn and inner shell body phase clamping formed one close-fitting overall and can be by above-mentioned sealing ring group The fastening structure of part positioning is connected；Above-mentioned entirety is fixedly connected with body.From wherein can clearly find out very much, quickly connect The inner core of head is inner housing in the document, O-ring seal, left half-turn, right half-turn, flat sealing ring, and the split of employing loads Mode, assemble by means of which, the whole assembling mode for snap joint seems and very wastes time and energy, machining accuracy Require also high, assembling process also very bothers, and this split type structure, as long as O-ring seal therein, a left side half After damaging or being misplaced by external force impact occur in circle, right half-turn, any part of flat sealing ring, whole product just cannot be normal Work.

Content of the invention

The deficiency existing for above-mentioned prior art, the purpose of this utility model is that a kind of assembling of offer is time saving and energy saving, adds Work required precision is relatively low, saves substantial amounts of cost, extends the service life of product, and assembles extremely convenient and efficiently quickly connect The integral type inner core of head.

For realizing above-mentioned purpose, this utility model provides technical scheme below：

A kind of integral type inner core of snap joint, including inner housing, the backside port of inner housing is provided with necking end, necking Form step surface, inner housing is integrated to be made, and is sequentially installed with from front to back in inner shell body between end and the internal chamber wall of inner housing Oil sealing base, the first oil sealing, separator, the second oil sealing, the rear end face of the second oil sealing and step surface snug fit.

This utility model is further arranged to：The lateral wall of described first oil sealing is provided with the projection of at least one annular Portion, lobe all snug fit and the internal chamber wall of inner housing between.

This utility model is further arranged to：The lateral wall of described second oil sealing is provided with the projection of at least one annular Portion, lobe all snug fit and the internal chamber wall of inner housing between.

This utility model is further arranged to：The screens that the lateral wall of described oil sealing base is provided with annular is raised, inner shell The internal chamber wall of body is provided with the screens groove of the annular corresponding with screens raised position.

This utility model is further arranged to：The raised rear side of lateral wall of described screens is connected with the lateral wall of oil sealing base Connect, the raised lateral wall of screens is formed slopely sloped sidewall from the front to the back and laterally.

This utility model is further arranged to：The inner chamber of described oil sealing base be followed successively by from front to back the first cylindrical cavity, First conical cavity, the first conical cavity reduced diameter from front to back.

This utility model is further arranged to：Be provided with annular inside the end face of rear port of described oil sealing base first is fixed Position is raised, and the inner chamber of the first oil sealing is provided with the first expansion neck chamber near the side of front port, and the first positioning convex can be inserted into the first expansion Footpath chamber simultaneously snug fit and the first expanding chamber between.

This utility model is further arranged to：Diameter is gradually reduced the inner chamber of described first oil sealing from front to back, separator Inner chamber be followed successively by the second conical cavity, the second cylindrical cavity from front to back, the diameter of the second conical cavity is gradually reduced from front to back, It is provided with the first groove of annular at the position corresponding with the second conical cavity inside the end face of the rear port of the first oil sealing.

This utility model is further arranged to：It is provided with the second positioning of annular inside the end face of the rear port of described separator Projection, the inner chamber of the second oil sealing is provided with the second expansion neck chamber near the side of front port, and it is expanding that the first positioning convex can be inserted into second Chamber simultaneously snug fit and the second expanding chamber between.

This utility model is further arranged to：Diameter is gradually reduced the inner chamber of described second oil sealing from front to back, step surface It is connected by triconic chamber and the internal chamber wall of necking end between, the diameter in triconic chamber is gradually reduced from front to back, second It is provided with the second groove of annular at the position corresponding with triconic chamber inside the end face of the rear port of oil sealing.

By adopting technique scheme, the technique effect that this utility model is reached is：Make one using by inner housing The structure of body formula, being optimized internal assembly and coordinated the structure of integral type to be assembled accordingly so that by this When core is assembled in snap joint, assembling is time saving and energy saving, and requirement on machining accuracy is relatively low, saves substantial amounts of cost, extends product Service life, and assemble extremely convenient fast, the splendid inner core of sealing effectiveness simultaneously, fit is also very high, Ke Yishi Should be in the installation of multiple snap joints, disassembling, assembling and replacing and maintenance all become extremely convenient.

Brief description

Below in conjunction with the accompanying drawings this utility model is described in further detail.

Fig. 1 is sectional structure principle schematic of the present utility model.

Specific embodiment

With reference to Fig. 1, it is a kind of integral type inner core of snap joint disclosed in this utility model, including inner housing 10, inner shell The backside port of body 10 is provided with necking end 11, forms step surface 12, inner shell between the internal chamber wall of necking end 11 and inner housing 10 Body 10 is integrated to be made, be sequentially installed with from front to back in inner housing 10 oil sealing base 13, the first oil sealing 14, separator 15, Two oil sealings 16, the rear end face of the second oil sealing 16 and step surface 12 snug fit.

In above-mentioned, in order to make can between the first oil sealing 14 and the second oil sealing 16 and the internal chamber wall of inner housing 10 It is fitted close, improve the sealing property of product, the projection of at least one annular can be provided with the lateral wall of the first oil sealing 14 Portion 17, lobe 17 snug fit all and internal chamber wall of inner housing 10 between.Equally can also be in the lateral wall of the second oil sealing 16 It is provided with least one annular lobe 17, lobe 17 snug fit that is also equal and the internal chamber wall of inner housing 10 between.This Sample can make the pipe fitting of insertion when extruding the first oil sealing 14 and the second oil sealing 16, and lobe can preferably play sealing The effect of cooperation.

In addition, the first oil sealing 14, separator 15, the second oil sealing 16 are after loading inner housing 10, several in order to ensure this Individual assembly can be stablized in inner housing 10, does not fall out, then the screens being provided with annular on the lateral wall of oil sealing base 13 is convex Play 18, the internal chamber wall of inner housing 10 is provided with the screens groove 19 of the annular corresponding with screens projection 18 positions.Generally, Load for convenience, the rear side of the lateral wall of screens projection 18 is connected with the lateral wall of oil sealing base 13, outside screens projection 18 Side wall is formed slopely sloped sidewall from the front to the back and laterally, when loading, the raised front port with inner housing of screens it Between slipped into by sloped sidewall, you can to play good guide effect, easily screens projection can be slipped into screens again In groove.

In the present embodiment, the inner chamber of oil sealing base 13 is followed successively by the first cylindrical cavity 20, the first taper from front to back Chamber 21, the first conical cavity 21 reduced diameter from front to back, it is provided with annular inside the end face of the rear port of oil sealing base 13 First positioning convex 22, the inner chamber of the first oil sealing 14 is provided with the first expansion neck chamber 23, the first positioning convex near the side of front port 22 pluggable first expanding chambeies 23 simultaneously snug fit and the first expanding chamber 23 between.The inner chamber diameter from front to back of the first oil sealing 14 It is gradually reduced, the inner chamber of separator 15 is followed successively by the second conical cavity 24, the second cylindrical cavity 25, the second conical cavity 25 from front to back Diameter be gradually reduced from front to back, the position corresponding with the second conical cavity 25 inside the end face of rear port of the first oil sealing 14 Place is provided with the first groove 26 of annular.It is provided with the second positioning convex 27 of annular inside the end face of the rear port of separator 15, the The inner chamber of two oil sealings 16 is provided with the second expansion neck chamber 28, the pluggable second expanding chamber of the first positioning convex 22 near the side of front port 28 and and the second expanding chamber 28 between snug fit.Diameter is gradually reduced the inner chamber of the second oil sealing 16 from front to back, step surface 12 It is connected by triconic chamber 29 between the internal chamber wall of necking end 11, the diameter in triconic chamber 29 gradually subtracts from front to back Little, it is provided with the second groove of annular at the position corresponding with triconic chamber 29 inside the end face of rear port of the second oil sealing 16 30.Here setting conical cavity and the groove matching with conical cavity, main purpose is the sealing effectiveness in order to strengthen oil sealing, When pipe fitting inserts, the inner ring of oil sealing can be to the direction of insertion bending of oil sealing, then have the cooperation of groove and conical cavity, The inner ring making oil sealing has a good binding face, has good sealing property between the pipe fitting with insertion.

Above-described embodiment is only preferred embodiment of the present utility model, not limits protection model of the present utility model according to this Enclose, therefore：All equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by protection of the present utility model Within the scope of.

Claims

1. the integral type inner core of a kind of snap joint, including inner housing, the backside port of inner housing is provided with necking end, necking end And the internal chamber wall of inner housing between formed step surface it is characterised in that：Inner housing is integrated to be made, in inner shell body from front to back according to Secondary oil sealing base, the first oil sealing, separator, the second oil sealing be installed, the rear end face of the second oil sealing and step surface snug fit.

2. snap joint according to claim 1 integral type inner core it is characterised in that：The lateral wall of described first oil sealing It is provided with least one annular lobe, lobe all snug fit and the internal chamber wall of inner housing between.

3. snap joint according to claim 1 integral type inner core it is characterised in that：The lateral wall of described second oil sealing It is provided with least one annular lobe, lobe all snug fit and the internal chamber wall of inner housing between.

4. snap joint according to claim 1 integral type inner core it is characterised in that：The lateral wall of described oil sealing base The screens being provided with annular is raised, and the internal chamber wall of inner housing is provided with the screens groove of the annular corresponding with screens raised position.

5. snap joint according to claim 4 integral type inner core it is characterised in that：The raised lateral wall of described screens Rear side be connected with the lateral wall of oil sealing base, the raised lateral wall of screens is formed slopely inclined side from the front to the back and laterally Wall.

6. the snap joint according to any one of claim 1 to 5 integral type inner core it is characterised in that：Described oil sealing bottom The inner chamber of seat is followed successively by the first cylindrical cavity, the first conical cavity, the first conical cavity reduced diameter from front to back from front to back.

7. snap joint according to claim 1 integral type inner core it is characterised in that：The rear port of described oil sealing base End face inside be provided with the first positioning convex of annular, the inner chamber of the first oil sealing is provided with the first expansion neck near the side of front port Chamber, the first positioning convex can be inserted into the first expanding chamber simultaneously snug fit and the first expanding chamber between.

8. the snap joint according to any one of claim 1 to 5,7 integral type inner core it is characterised in that：Described Diameter is gradually reduced the inner chamber of one oil sealing from front to back, and the inner chamber of separator is followed successively by the second conical cavity, the second circle from front to back Cylinder chamber, the diameter of the second conical cavity is gradually reduced from front to back, with the second taper inside the end face of the rear port of the first oil sealing It is provided with the first groove of annular at the corresponding position in chamber.

9. snap joint according to claim 1 integral type inner core it is characterised in that：The rear port of described separator It is provided with the second positioning convex of annular, the inner chamber of the second oil sealing is provided with the second expansion neck chamber near the side of front port inside end face, First positioning convex can be inserted into the second expanding chamber simultaneously snug fit and the second expanding chamber between.

10. the snap joint according to any one of claim 1 to 5,7 integral type inner core it is characterised in that：Described Diameter is gradually reduced the inner chamber of two oil sealings from front to back, passes through triconic chamber even between step surface and the internal chamber wall of necking end Connect, the diameter in triconic chamber is gradually reduced from front to back, with triconic chamber phase inside the end face of the rear port of the second oil sealing It is provided with the second groove of annular at corresponding position.