Technical realization elements of hydraulic buffer door hinge

Technical realization elements:

3. The utility model provides a hydraulic buffer type door hinge to solve the above-mentioned problems.

4. The purpose of the utility model can be achieved through the following technical solutions:

5. A hydraulic buffer type door hinge, including:

6. The main shaft core, the main shaft core includes a rotating shaft, a housing, a piston assembly, a spring, a main shaft assembly, a positioning assembly, a valve stem assembly, a needle bearing and a centripetal thrust bearing, and the housing is arranged in On the outer side of the rotating shaft, the main shaft assembly, spring, piston assembly, positioning assembly, centripetal thrust bearing and needle roller bearing are sequentially arranged between the housing and the rotating shaft, and the main shaft assembly is provided with a movable sleeve and pressure Screw, the piston assembly is composed of a piston sleeve, a steel ball, a retaining ring and a piston ring, the positioning assembly is provided with a positioning pin, a small spring and a fixing bolt, and the valve stem assembly is arranged inside the rotating shaft and includes The return spring, the filter element, the hydraulic oil circuit overflow valve and the valve stem ring, the rotating shaft is needle-shaped, including an inner groove, a guide groove and a rotating shaft ring;

7. Hinge, the hinge is arranged on the outer side of the main shaft core and includes a one-way thrust bearing, the hinge is paired with each other with the hinge tube as the axis, and includes a fixing hole and a limiting edge. The one-way thrust Bearings include live rings, outer rings and bearing steel balls;

8. The fixing assembly, which is arranged at the front and rear ends of the spindle core, includes a decorative cover, a shaft fixing seat and a fixing part, and the decorative cover is matched with the shaft fixing seat and the fixing part respectively, and includes a round through hole, so The shaft fixing seat is provided with a first matching groove and a matching through hole, and the fixing member is provided with a second matching groove, an annular through hole and an adjusting bolt.

9. Further, the surfaces of the piston assembly and the positioning assembly are both provided with orientation grooves.

10. The beneficial effects of the utility model:

11. The utility model provides a hydraulic buffer type door hinge. Compared with the prior art, the utility model has a simple structure and is easy to prepare. It adopts a positioning device, a structure for adjusting the pressure of the spring, a filter device for preventing the oil circuit from being blocked, and The structure of directional rotation, the rotation of the shaft structure has no abnormal sound, and the hydraulic buffer performance can adjust the opening speed of the door arbitrarily, and it can be positioned 90%.° Can also be positioned 90°180Any selected angle in, 89 when the door leaf is reset°‑0°

Can brake to close.

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