CN211449966U - Movable joint - Google Patents

Abstract

The utility model provides a movable joint belongs to and connects technical field. It has solved the problem that the loose joint that has now been applied to on the oil gun rotates not smooth, sealed effect is poor and life is short. This movable joint, including connecting the body and respectively overlapping the movable cap and the adapter sleeve of locating joint body both ends, connect on the periphery wall of body one end and with between the movable cap by outer toward interior first ring channel and the second ring channel of having seted up in proper order, first ring channel facial make-up is equipped with the first steel ball that a plurality of is circumference evenly distributed, second ring channel facial make-up is equipped with the second steel ball that a plurality of is circumference evenly distributed, a tip of movable cap has a bellied ring towards adapter sleeve direction extension. The utility model has the advantages of rotate nimble in the same direction as smooth, reduce the wearing and tearing of sealing member and improve the life of whole product.

Description

Movable joint

Technical Field

The utility model belongs to the technical field of connect, a connect, in particular to movable joint is related to.

Background

The movable joint is a common pipeline connecting piece which can be conveniently mounted and dismounted, and can be frequently seen on an oil gun in a gas station. A loose joint for among filling station connects oil filler pipe and nozzle usually, and current loose joint inner structure is simple, lead to easily setting up its inside sealing washer wearing and tearing under long-time use, thereby make sealing washer life reduce and sealed effect poor, current loose joint leads to whole swing joint nature compactness easily under long-time use simultaneously, it is unsmooth, direct influence holistic life, how the development that how to make the loose joint design of being applied to on the nozzle more accord with modern society is the problem that we need solve urgently.

Disclosure of Invention

The utility model aims at providing a rotate nimble smooth, sealed effectual and increase of service life's movable joint to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: a movable joint comprises a joint body, and a movable cap and a connecting sleeve which are respectively sleeved at two ends of the joint body, and is characterized in that a first annular groove and a second annular groove are sequentially arranged on the outer peripheral wall of one end of the joint body and between the outer peripheral wall and the movable cap from outside to inside, a plurality of first steel balls which are uniformly distributed in the circumferential direction are arranged on the first annular groove, a plurality of second steel balls which are uniformly distributed in the circumferential direction are arranged on the second annular groove, a third annular groove corresponding to the first annular groove is arranged on the end surface of one end of the movable cap towards the inside in a concave manner, the first steel balls are arranged in the first annular groove and the third annular groove to play a role of axially limiting the movable cap to prevent the movable cap from falling off, a fourth annular groove is arranged at the position of the inner peripheral wall of the movable cap corresponding to the second annular groove, and the second steel balls are arranged in the second annular groove and the fourth annular groove to play a role of axially limiting the movable cap to prevent, the connector comprises a connector body and is characterized in that a first sealing element and a second sealing element are sleeved on the outer peripheral wall of the connector body and between a movable cap and a first annular groove and a second annular groove respectively, a protruding ring extends towards the direction of a connecting sleeve at one end of the movable cap, a cavity which can be used for the protruding ring to extend into is formed between the protruding ring and the connector body, one end of the cavity abuts against one end face of the protruding ring, and the other end of the cavity abuts against an elastic element on one end face of the connector body.

In the above movable joint, a position on the outer peripheral wall of the movable cap, which corresponds to the fourth annular groove, is provided with a placing hole for placing the second steel ball, and the placing hole is communicated with the second annular groove and the fourth annular groove.

In the movable joint, the placing hole is sealed by the plug.

In the above movable joint, a first sealing groove and a second sealing groove are respectively formed in the peripheral wall of the joint body, and the first sealing element and the second sealing element are sleeved with each other.

In the above-mentioned movable joint, a section of clearance has just being located between activity cap and the joint body on the periphery wall of bellying ring, and the cover is equipped with the flat gasket that plays wear-resisting effect on the periphery wall of this bellying ring to block up above-mentioned clearance through this flat gasket.

In the movable joint, the first steel balls are all fixed on the first annular groove through an adhesive.

In the above movable joint, the first sealing element and the second sealing element are both O-ring seals.

In the above movable joint, the elastic member is a pagoda spring.

Compared with the prior art, set up a plurality of first steel balls and second steel ball in this movable joint, equallyd divide first steel ball and second steel ball to inlay respectively and locate on the joint body periphery wall, make and rotate the movable cap more nimble in the same direction as smooth, distinguish the frictional contact between traditional plane and the plane, have the advantage that rotates in a flexible way in the same direction as smooth, the wearing and tearing of sealing member are reduced to the rotation mode of nimble in the same direction as smooth, improve the life of whole product.

Drawings

Fig. 1 is a schematic sectional view of the movable joint.

In the figure, 1, a joint body; 2. a movable cap; 3. connecting sleeves; 4. a first annular groove; 5. a second annular groove; 6. a first steel ball; 7. a second steel ball; 8. a third annular groove; 9. a fourth annular groove; 10. a first sealing element; 11. a second sealing element; 12. a raised ring; 13. a cavity; 14. an elastic member; 15. a drop hole; 16. a first sealing groove; 17. a second sealing groove; 18. and (7) a flat gasket.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the movable joint comprises a joint body 1, and a movable cap 2 and a connecting sleeve 3 which are respectively sleeved at two ends of the joint body 1, a first annular groove 4 and a second annular groove 5 are sequentially formed in the outer peripheral wall of one end of the joint body 1 and between the movable cap 2 from outside to inside, a plurality of first steel balls 6 which are circumferentially and uniformly distributed are arranged on the first annular groove 4, a plurality of second steel balls 7 which are circumferentially and uniformly distributed are arranged on the second annular groove 5, a third annular groove 8 corresponding to the first annular groove 4 is formed in the end face of one end of the movable cap 2 towards the inner part of the end face, the first steel balls 6 are arranged in the first annular groove 4 and the third annular groove 8 to play a role in axially limiting the movable cap 2 and preventing the movable cap 2 from falling off, a fourth annular groove 9 is formed in the position of the second annular groove 5 corresponding to the inner peripheral wall of the movable cap 2, and the second steel balls 7 are arranged in the second annular groove 5 and the fourth annular groove 9 to The effect that cap 2 drops, on the periphery wall of joint body 1 and between and the activity cap 2 and be located first ring channel 4 and second ring channel 5 between the cover be equipped with sealing member 10 and sealing member two 11 respectively, a tip of activity cap 2 extends towards adapter sleeve 3 direction has a bellied ring 12, and this bellied ring 12 and form between the joint body 1 have the cavity 13 that can supply bellied ring 12 to stretch into, still be equipped with one end and this bellied ring 12 terminal surface in the cavity 13 and offset and lean on, the other end and the elastic component 14 that connects 1 terminal surface of body and offset and lean on.

Preferably, the first sealing element 10 and the second sealing element 11 are both O-shaped sealing rings.

Preferably, the resilient member 14 is a pagoda spring.

In more detail, a position, corresponding to the fourth annular groove 9, on the outer peripheral wall of the movable cap 2 is provided with a placing hole 15 into which the second steel ball 7 is placed and which is communicated with the second annular groove 5 and the inside of the fourth annular groove 9, the placing hole 15 is sealed by a plug, the outer peripheral wall of the joint body 1 is provided with a first sealing groove 16 and a second sealing groove 17 for sleeving a first sealing element 10 and a second sealing element 11, respectively, a gap is formed between the movable cap 2 and the joint body 1 on the outer peripheral wall of the protrusion ring 12, a flat gasket 18 with a wear-resistant effect is sleeved on the outer peripheral wall of the protrusion ring 12, the gap is blocked by the flat gasket 18, the first steel ball 6 is adhered to the first annular groove 4 by an adhesive, when assembling, the elastic element 14 is assembled in the cavity 13, then the movable cap 2 is moved axially inwards along the outer peripheral wall of one end of the joint body 1 until the protrusion ring 12 at the inner end of the movable cap 2 is abutted against the elastic element 14, the other end of the elastic element 14 is abutted against the joint body 1, the outer end part of the movable cap 2 is pressed, the raised ring 12 of the movable cap 2 is slowly pressed into the cavity 13 through the elastic element 14, then the first steel balls 6 are sequentially adhered and fixed in the first annular groove 4 through an adhesive, after the assembly of the first steel balls 6 is completed, the movable cap 2 is reset by slowly loosening a finger, the third annular groove 8 formed in the end surface of the movable cap 2 corresponds to the first annular groove 4 on the joint body 1, the first steel balls 6 are axially limited to be difficult to fall off, then the second steel balls 7 are sequentially placed into the second annular groove 5 through the placing hole 15, and finally the placing hole 15 is sealed through a plug to prevent the second steel balls 7 from falling off, so that the assembly is completed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (8)

1. A movable joint comprises a joint body (1), and a movable cap (2) and a connecting sleeve (3) which are respectively sleeved at two ends of the joint body (1), and is characterized in that a first annular groove (4) and a second annular groove (5) are sequentially arranged on the outer peripheral wall at one end of the joint body (1) and between the outer peripheral wall and the movable cap (2) from outside to inside, a plurality of first steel balls (6) which are uniformly distributed in the circumferential direction are arranged on the first annular groove (4), a plurality of second steel balls (7) which are uniformly distributed in the circumferential direction are arranged on the second annular groove (5), a third annular groove (8) corresponding to the first annular groove (4) is arranged on the end surface of one end of the movable cap (2) towards the inside in a concave manner, the first steel balls (6) are arranged in the first annular groove (4) and the third annular groove (8) to play a role in axially limiting the movable cap (2) and preventing the movable cap (2) from falling off, a fourth annular groove (9) is formed in the position, corresponding to the second annular groove (5), of the inner peripheral wall of the movable cap (2), the second steel balls (7) are arranged in the second annular groove (5) and the fourth annular groove (9) to play a role in axially limiting the movable cap (2) to prevent the movable cap (2) from falling off, a first sealing element (10) and a second sealing element (11) are respectively sleeved on the outer peripheral wall of the connector body (1) and between the movable cap (2) and the first annular groove (4) and between the second annular groove (5), a protruding ring (12) extends towards the direction of the connecting sleeve (3) at one end of the movable cap (2), a cavity (13) into which the protruding ring (12) can extend is formed between the protruding ring (12) and the connector body (1), and one end of the cavity (13) is abutted against one end face of the protruding ring (12), the other end of the elastic piece (14) is propped against one end surface of the joint body (1).

2. The movable joint according to claim 1, wherein the outer peripheral wall of the movable cap (2) is provided with a placing hole (15) corresponding to the fourth annular groove (9) for placing the second steel ball (7) therein and communicating with the second annular groove (5) and the inner part of the fourth annular groove (9).

3. A movable joint according to claim 2, characterized in that said access opening (15) is sealed by means of a plug.

4. The movable joint according to claim 1, wherein the outer peripheral wall of the joint body (1) is provided with a first sealing groove (16) and a second sealing groove (17) for sleeving the first sealing element (10) and the second sealing element (11), respectively.

5. A movable joint according to claim 1, characterized in that a gap is provided between the movable cap (2) and the joint body (1) on the outer peripheral wall of the raised ring (12), and a wear-resistant flat gasket (18) is sleeved on the outer peripheral wall of the raised ring (12), and the gap is blocked by the flat gasket (18).

6. A movable joint as claimed in claim 1, wherein said first steel balls (6) are each bonded to said first annular groove (4) by means of an adhesive.

7. A movable joint according to claim 1, wherein the first sealing member (10) and the second sealing member (11) are O-rings.

8. An articulating joint as claimed in claim 1, wherein said resilient member (14) is a pagoda spring.

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