US 11,788,660 B2
Hydraulic coupling device and male and female coupling units
Axel Wall, Knivsta (SE)
Assigned to STEELWRIST AB, Sollentuna (SE)
Appl. No. 16/644,690
Filed by STEELWRIST AB, Sollentuna (SE)
PCT Filed Sep. 7, 2018, PCT No. PCT/SE2018/050899
§ 371(c)(1), (2) Date Mar. 5, 2020,
PCT Pub. No. WO2019/050461, PCT Pub. Date Mar. 14, 2019.
Claims priority of application No. 1751092-6 (SE), filed on Sep. 8, 2017.
Prior Publication US 2020/0284387 A1, Sep. 10, 2020
Int. Cl. F16L 37/34 (2006.01); F16L 37/088 (2006.01); E02F 9/22 (2006.01); F16L 21/08 (2006.01)
CPC F16L 37/34 (2013.01) [E02F 9/22 (2013.01); F16L 21/08 (2013.01); F16L 37/088 (2013.01)] 13 Claims
OG exemplary drawing
 
13. A hydraulic coupling device, comprising:
a male coupling unit comprising a male coupling body comprising a hollow core comprising a male coupling body center axis extending in a male coupling body extension direction, wherein the male coupling body comprises an inner surface wherein the male coupling body further comprising a poppet valve device arranged in the hollow core;
a female coupling unit comprising a female coupling body comprising a hollow core, wherein the female coupling body comprises a rear end, a front end, and a sealing sleeve device, wherein the sealing sleeve device is supported by a spring device and is movable in relation to the female coupling body between a closed and an open position upon extension and compression of the spring device respectively, and further comprises a female poppet device fixedly arranged to the rear end of the female coupling body in the hollow core and extending towards the front end of the female coupling body;
a holding block;
a guiding ring; and
an expanding ring to fixedly arrange the female coupling unit to the holding block in an opening of the holding block, wherein
the poppet valve device comprises a poppet device, a guide device, and a spring device,
a first end of the spring device is supported by the poppet device and a second end of the spring device is supported by the guide device,
the poppet device is movable in relation to the guide device along the male coupling body extension direction between an open and closed position upon compression and extension of the spring device respectively,
the guide device is locked in the male coupling body extension direction,
the inner surface comprises a thread surface portion,
the guide device comprises an outer surface comprising a thread surface portion configured to engage with the corresponding thread surface portion of the inner surface of the male coupling body for locking the guide portion,
the guiding ring comprises an outer surface comprising a thread surface portion configured to engage with a thread surface portion of a cylindrical portion of an opening of the holding block fixedly arranging the guiding ring to the holding block,
a seat is provided in the opening of the holding block for supporting the expanding ring,
an outer surface of the front end portion of the female coupling body comprises a circumferential groove comprising a groove seat, configured to receive the expanding ring,
the female coupling unit is adapted to be fixedly arranged to the holding block by being suspended between the guiding ring and the seat, and
the expanding ring is arranged as a support between the female coupling unit and the seat.