CN213275120U - Hose test joint - Google Patents

Abstract

The utility model relates to a hose test joint, which comprises a clamping round sleeve, a spherical joint, a rotating shaft and a limiter, wherein the clamping round sleeve is provided with a connecting end and a supporting end, and the connecting end and the supporting end limit an internal cavity; the spherical joint is arranged in the cavity and is provided with a sealing section connected with the hose assembly and a spherical bulge contacted with the supporting end; one end of the rotating shaft is arranged on the spherical bulge, and the other end of the rotating shaft is arranged on the supporting end; the limiting stopper is connected to the supporting end of the clamping round sleeve and can rotate between a locking position and an opening position relative to the clamping round sleeve; when the stopper rotates to the opening position, the spherical joint can rotate around the rotating shaft; when the retainer is rotated to the locked position, the ball joint is locked within the chamber. The utility model discloses have dual only to take off the function, safe and reliable, and the design is simple, and the size is less relatively, and is convenient to use.

Description

Hose test joint

Technical Field

The utility model relates to a mechanical connection field, concretely relates to hose takes test connector of step joint sleeve pipe termination.

Background

After the hose is made in a kit, it is often necessary to go through a pressure test to get the product out. One of the common types of connections for hose assemblies is the bayonet connection, which requires the connection of the hose connection to a pressure source during pressure testing. When the hose kit interface is the ferrule tube end connection, the nut and the ferrule are required to be sequentially sleeved on the ferrule tube end connection, and then the nut is connected with the test connector body. After the installation, because the clamping sleeve is cramped and deformed, the clamping sleeve pipe termination is difficult to be detached with the clamping sleeve and the nut. In addition, during pressure testing, no matter what way the clamping sleeve pipe end and the pressure source are connected, the clamping sleeve pipe end and the testing joint are subjected to axial medium thrust, so that the clamping sleeve pipe end and the testing joint need to be fixed on the clamp body, on one hand, the clamp body is heavy, on the other hand, a hose kit needs to be continuously installed and detached from the clamp body, and the testing efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a hose test joint, which comprises a clamping round sleeve, a spherical joint, a rotating shaft and a limiter, wherein the clamping round sleeve is provided with a connecting end and a supporting end, and the connecting end and the supporting end limit an internal cavity; the spherical joint is arranged in the cavity and is provided with a sealing section connected with the hose assembly and a spherical bulge contacted with the supporting end; one end of the rotating shaft is arranged on the spherical bulge, and the other end of the rotating shaft is arranged on the supporting end; the limiting stopper is connected to the supporting end of the clamping round sleeve and can rotate between a locking position and an opening position relative to the clamping round sleeve; when the stopper rotates to the opening position, the spherical joint can rotate around the rotating shaft; when the retainer is rotated to the locked position, the ball joint is locked within the chamber.

Furthermore, a counter bore step is arranged at the connecting end of the clamping round sleeve, and a spherical supporting surface is arranged inside the supporting end.

Furthermore, an annular sealing groove is formed in the sealing section of the spherical joint, and a sealing element is arranged in the annular sealing groove.

Further, a thrust spring is arranged on the sealing section of the spherical joint.

Furthermore, a steel wire check ring for holes is arranged between the limiting device and the clamping round sleeve, and the limiting device slides and rotates relative to the clamping round sleeve through the steel wire check ring for the holes.

The beneficial effects of the utility model reside in that: 1. the size is relatively small, the use is convenient, and the working efficiency is improved. 2. Has double anti-falling functions, and is safe and reliable. 3. The design is simple, and the manufacturing cost is low.

Drawings

FIG. 1 is a perspective view of the hose assembly of the present invention after it has been connected in a locked position;

FIG. 2 is a top view taken along the line A-A in FIG. 1;

FIG. 3 is a perspective view of the hose assembly of the present invention after it is connected in an open position;

FIG. 4 is a schematic view of the structure of FIG. 3 taken along the direction B-B;

FIG. 5 contains a perspective view of the structure of the clamping collar contemplated by the present invention;

fig. 6 is a perspective view of a ball joint incorporating the concepts of the present invention;

fig. 7 is a perspective view of a stopper incorporating the concepts of the present invention;

Detailed Description

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-4, the present invention includes a clamping sleeve 36, a ball joint 22, a shaft 52, and a stopper 42.

The clamping collar 36 has a connecting end 38 and a support end 34, the connecting end 38 and the support end 34 defining an interior cavity 30. The attachment end 38 is used to secure the stepped snap sleeve termination 12 at the end of the hose assembly 10 and the support end 34 is used to support the ball joint 22. The connecting end 38 may be machined to a threaded end and connected by a connecting nut having a step on its inner wall that is snap fit into the step groove 11 of the step sleeve 12. For ease of installation, the attachment end 38 is preferably provided with a counter bored step 32, and the counter bored step 32 may snap directly into the stepped recess 11 of the stepped ferrule end 12.

The ball joint 22 is disposed within the chamber 30, the ball joint 22 including a seal section 14 disposed at a forward end, a central ball projection 18, and an interface section 28 disposed at a rearward end. The seal section 14 is adapted to be connected to the stepped collar end 12 of the end of the hose assembly 10. the seal section 14 has an outer diameter slightly smaller than the inner diameter of the stepped collar end 12 of the end of the hose assembly 10. to facilitate entry of the seal section 14 into the stepped collar end 12, the front end of the seal section 14 may be provided with a tapered surface 15. In a preferred embodiment, an annular seal groove 17 is provided in the seal segment 14, and a seal 19 is provided in the annular seal groove 17, the seal 19 providing a further sealing effect between the ball joint 22 and the hose assembly 10. The spherical bulge 18 is in fit contact with the supporting end 34 of the clamping round sleeve 36, and the spherical surface 23 is arranged on the spherical bulge 18. To reduce friction with the spherical projection 18, the support end 34 is preferably internally machined with a spherical support surface 35 that mates with the spherical surface 23. The interface section 28 is connected to the gas source end, preferably in the form of a threaded or quick-connect port, for quick connection to the gas source end. When a large installation torque is required, the tool can be used to grip the adjacent interface section in the four orientations 26.

One end of the rotating shaft 52 is arranged in the connecting hole 20 at the tangent position of the spherical bulge 18 and the side wall of the clamping round sleeve 36, the other end of the rotating shaft is arranged in the rotating shaft mounting hole 31 of the supporting end 34, and the rotating shaft connecting hole 20 and the rotating shaft mounting hole 31 are coaxial. The spring 46 is also arranged in the rotating shaft connecting hole 20, and the spring 46 is abutted against a shaft shoulder of the rotating shaft 52 to prevent the rotating shaft 52 from loosening.

The retainer 42 is attached to the support end 34 of the clamping collar 36 and is rotatable relative to the clamping collar 36. For example, by a threaded connection, in a preferred embodiment of the invention, the stop 42 is slidably connected to the clamping collar 36 for ease of operation. Specifically, the supporting end 34 is provided with an annular clamping groove 33 and a hole steel wire retaining ring 56, the inner circumferential surface of the stopper 42 is provided with a corresponding groove 40, and the stopper 42 slides and rotates relative to the clamping round sleeve 36 through the hole steel wire retaining ring 56. A belleville spring 39 can be further arranged between the limiting stopper 42 and the end part of the supporting end 34, when the limiting stopper 42 is installed on the clamping round sleeve 36, the belleville spring 39 is in a compressed state, and the limiting stopper 42 is axially pressed by the belleville spring 39, so that friction between the limiting stopper 42 and the hole steel wire retainer ring 56 is increased, and rotation of the limiting stopper 42 is effectively controlled.

Referring to fig. 7, a stopper hole 45 is further provided on an end surface of the stopper 42, and the stopper hole 45 is provided with a locking position 43 and an opening position 45 in axial symmetry. The spherical joint 22 is provided with a limiting section 24 matched with the limiting hole 45, and the limiting section 24 is arranged at the tail end of the ball head bulge 18. When the stopper 42 is rotated to the open position 45, the ball joint 22 can be rotated about the rotary shaft 52; when the retainer 42 is rotated to the locked position 43, the ball joint 22 is locked within the cavity 30.

When the utility model discloses after assembling, the clamping circle cover 36 is gripped on the one hand, on the other hand with stopper 42 rotatory to opening position 45 department, with ball joint 22 along pivot 52 upwards rotatory, make ball joint 22's the canned paragraph 14 perk, insert ball joint 22's canned paragraph 14 with the step card sleeve pipe termination 12 of hose test subassembly 10 tip, simultaneously the ball joint 22 of rotatorying downwards, when on the counter bore step 32 of clamping circle cover 36 was made to step 11 block of step card sleeve pipe termination 12, reverse pulling hose test subassembly 10 gently. The connection is completed by rotating the stop 42 180 deg. to the locking position 45.

In a preferred embodiment, a thrust spring 37 is provided on the seal section 14. Referring specifically to fig. 2, a transition section 16 is included between the seal section 14 and the spherical protrusion 18, and a thrust spring 37 has one end abutting against a shoulder 29 formed by the seal section 14 and the transition section 16 and the other end abutting against a press tab 25 located in front of the end 13 of the stepped bayonet tube 12. The thrust spring 37 facilitates control of the depth of insertion of the stepped bayonet tube termination 12 into the seal section 14 to avoid bruising of the stepped bayonet tube termination 12. The thrust spring 37 may provide axial thrust between the stepped bayonet tube termination 12 and the ball joint 22 when pressure tested to ensure a more reliable connection.

After the ball joint 22 is connected with the air source end and pressurized, the ball joint 22 is subjected to a medium to apply a rightward thrust to the ball joint, and the step clamping sleeve end 12 is subjected to a medium to apply a leftward thrust to the ball joint, wherein the two forces have the same magnitude and are opposite in direction. The counter bore step 32 of the clamping collar 36 just engages the step 11 of the stepped clamping sleeve termination 12, so that the clamping collar 36 is forced to the left. The spherical projection 18 of the ball joint 22 engages the spherical bearing surface 35 of the clamping collar 36, so that the clamping collar 36 is again forced to the right by the ball joint 22. I.e., the ball joint 22 is balanced against the media forces received by the stepped bayonet tube termination 12.

After the test is completed, the stopper 42 is rotated to the open position 43, the step collar end 12 is pushed away from the counterbore step 35, the ball joint 22 is rotated upward along the rotating shaft 52, the sealing section 14 of the ball joint 22 is tilted, and the step collar end 12 is pulled down from the ball joint 22.

The invention has been described with reference to the preferred embodiments, to the above examples which are not intended to limit the invention, and from reading the present description, those skilled in the art will be able to conceive of numerous modifications and variations to this structure, without departing from the inventive concept, any obvious alternative falling within the scope of the invention.

Claims (5)

1. Hose test connection, its characterized in that includes:

a clamping collar (36), the clamping collar (36) having a connecting end (38) and a support end (34), the connecting end (38) and the support end (34) defining an interior chamber (30);

a ball joint (22) disposed within the chamber (30) having a sealing section (14) connected to the hose assembly and a ball protrusion (18) in contact with the support end (34);

a rotating shaft (52), one end of which is arranged on the spherical bulge (18) and the other end of which is arranged on the supporting end (34);

the limiting stopper (42) is connected to the supporting end (34) of the clamping round sleeve (36) and can rotate between a locking position (43) and an opening position (45) relative to the clamping round sleeve (36);

when the stopper (42) is rotated to the open position (45), the ball joint (22) can rotate around the rotating shaft (52); when the retainer (42) is rotated to the locking position (43), the ball joint (22) is locked within the cavity (30).

2. The hose test connection according to claim 1, characterized in that a counter bore step (32) is provided on the connecting end (38) of the clamping round sleeve (36), and a spherical support surface (35) is provided inside the support end (34).

3. The hose test connection according to claim 2, characterized in that the sealing section (14) of the ball joint (22) is provided with an annular sealing groove (17), and in that the annular sealing groove (17) is provided with a sealing element (19).

4. A hose test connection according to claim 3, characterized in that the sealing section (14) of the ball joint (22) is provided with a thrust spring (37).

5. The hose test connection according to claim 4, characterized in that a hole steel wire retainer ring (56) is arranged between the stopper (42) and the clamping round sleeve (36), and the stopper (42) slides and rotates relative to the clamping round sleeve (36) through the hole steel wire retainer ring (56).

Images