CN215907659U

CN215907659U - Bearing hinge

Info

Publication number: CN215907659U
Application number: CN202121936511.6U
Authority: CN
Inventors: 陈炳宣
Original assignee: Zhaoqing Gaoyao Zhongtianming Hardware Technology Co ltd
Current assignee: Zhaoqing Gaoyao Zhongtianming Hardware Technology Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-25
Anticipated expiration: 2031-08-17

Abstract

The utility model relates to a bearing hinge which comprises a first leaf plate, a second leaf plate and a pivot, wherein the first leaf plate is provided with a fixed sleeve, two ends of the second leaf plate, which correspond to the fixed sleeve, are provided with movable sleeves, the pivot is inserted into the fixed sleeve and the movable sleeve, the fixed sleeve and the pivot are relatively static, the movable sleeve and the pivot rotate relatively, an end surface bearing is arranged between the end surfaces of the fixed sleeve and the movable sleeve, and a roller bearing is arranged between the movable sleeve and the pivot. In addition, a roller bearing is arranged between the movable sleeve and the pivot, the concentricity of the sleeve and the pivot is improved, the probability of deformation of the pivot is reduced, the rotation is smoother, and the service life is longer.

Description

Bearing hinge

Technical Field

The utility model relates to a door and window hinge, in particular to a bearing hinge.

Background

Chinese patent No. CN201420435375.6 discloses a load-bearing hinge for a folding door in 2014, 12 and 10, which comprises: the hinge comprises a right blade, an upper hollow cylinder and a lower hollow cylinder which are formed at two ends of the right blade, and a connecting part formed on the upper hollow cylinder, wherein the connecting part is hollow, the top of the connecting part is provided with threads to be connected with a bearing pulley assembly, a threaded hole is formed in the side wall of the connecting part, the left hinge comprises a left blade, one or more left hollow cylinders formed in the middle of the left blade, the rotating shaft sequentially penetrates through the first shaft sleeve, the lower hollow cylinder, the first miniature plane thrust bearing, the second shaft sleeve, one or more left hollow cylinders, the third shaft sleeve, the second miniature plane thrust bearing and the upper hollow cylinder and then is inserted into the connecting part, and the fastening screw is screwed in the threaded hole, to lock the rotation shaft in the connection portion. The hollow cylinder of two leaves about this structure supports through two upper and lower plane thrust bearing before, realizes two leaves rotation each other, however, because the hollow cylinder of two leaves about does not have further restraint with the cooperation of pivot, the hollow cylinder concentricity that leads to two leaves about, leads to pivot, hinge to warp easily, influences pivoted smooth and easy degree, and wearing and tearing are serious, reduce life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bearing hinge which is reasonable in structure, smooth in rotation and long in service life.

The purpose of the utility model is realized as follows:

the utility model provides a bearing hinge, includes first page or leaf board, second page or leaf board and pivot, and first page or leaf board is equipped with fixed sleeve, and second page or leaf board corresponds fixed sleeve's both ends and is equipped with movable sleeve, and in fixed sleeve and the movable sleeve were inserted to the pivot, fixed sleeve and pivot were static relatively, and movable sleeve and pivot rotate its characterized in that relatively: an end face bearing is arranged between the end faces of the fixed sleeve and the movable sleeve, and a roller bearing is arranged between the movable sleeve and the pivot.

The aim of the utility model can also be solved by the following technical measures:

more specifically, an end cover is provided at an end of the pivot shaft, the end cover is inserted into the movable sleeve, and the roller bearing is disposed between an inner wall of the movable sleeve and an outer periphery of the end cover.

As a further scheme, the pivot is a hollow shaft, the number of the end covers is two, the two end covers are respectively a first end cover and a second end cover, and the first end cover and the second end cover are respectively arranged at two ends of the pivot; the locking bolt sequentially penetrates through the first end cover, the pivot and the second end cover and then is connected with the nut; the second page plate is provided with two movable sleeves which are respectively a first movable sleeve and a second movable sleeve, the first end cover extends into the first movable sleeve and is provided with a first roller bearing between the first movable sleeve and the first end cover, and the second end cover extends into the second movable sleeve and is provided with a second roller bearing between the second movable sleeve and the second end cover.

As a further scheme, the periphery of the end cover is sequentially provided with a bearing matching end, a limiting convex ring and an inserting end along the axis direction, the outer diameter of the bearing matching end is smaller than the inner diameter of the pivot, the roller bearing is arranged outside the bearing matching end, the limiting convex ring abuts against the end surface of the pivot, the inserting end is in inserting fit with the pivot, and the center of the end cover is provided with a center hole corresponding to the locking bolt.

As a further scheme, the first page plate is provided with the fixed sleeve, and the inner wall of the fixed sleeve is in interference fit with the pivot; the end face bearings are two, the two end face bearings are respectively a first end face bearing and a second end face bearing, the first end face bearing is located between one end of the fixed sleeve and the first movable sleeve, and the second end face bearing is located between the other end of the fixed sleeve and the second movable sleeve.

As a further scheme, two ends of the fixed sleeve are respectively provided with an annular groove, the periphery of the end face bearing is provided with a support ring, one end of the support ring is provided with a positioning bulge, and the positioning bulge is inserted into the annular groove, so that the concentricity of the end face bearing, the sleeve and the pivot is improved. The end face bearing comprises a ball bearing, an inner gasket and an outer gasket, the ball bearing is arranged between the inner gasket and the outer gasket, the ball bearing comprises a plurality of balls and a ball supporting ring, the balls are arranged on the ball supporting ring in a rolling mode, the upper side and the lower side of each ball are exposed out of the ball supporting ring and are respectively contacted with the outer gasket and the inner gasket, and the outer gasket protrudes out of the supporting ring.

As a further scheme, the pivot is provided with a thick section and a thin section, the outer diameter of the thick section is larger than that of the thin section, the thick section is located in the fixed sleeve, the thin section is located in the second movable sleeve, and the thin section is in clearance fit with the second movable sleeve.

As a further scheme, a transverse pin is radially inserted between the fixed sleeve and the pivot, and the transverse pin is welded with the fixed sleeve. The transverse pin ensures that the connection between the fixed sleeve and the pivot is more reliable, and reliable transmission matching relation is realized.

As a further scheme, the outer ends of the first movable sleeve and the second movable sleeve, which are back to the fixed sleeve, are respectively provided with a first snap ring and a second snap ring, and the first snap ring and the second snap ring are both exposed out of the second leaf plate and are respectively connected with the first outer cover and the second outer cover; the surfaces of the first outer cover and the second outer cover are provided with holes, so that lubricating oil can be conveniently dropped into the holes.

As a further scheme, the surfaces of the first page plate and the second page plate are provided with connecting holes.

The utility model has the following beneficial effects:

(1) in addition, a roller bearing is arranged between the movable sleeve and the pivot, the concentricity of the sleeve and the pivot is improved, the probability of deformation of the pivot is reduced, the rotation is smoother, and the service life is longer.

(2) The hinge can be matched with the buffer hinge to be used with doors and windows, and can also be matched with the doors and windows independently.

Drawings

Fig. 1 is a schematic structural diagram according to an embodiment of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

FIG. 3 is a schematic sectional view A-A of FIG. 2.

Fig. 4 is an enlarged schematic view of B in fig. 3.

Fig. 5 is a schematic view of the end cap structure of the present invention.

FIG. 6 is a schematic view of another angle structure of the present invention.

FIG. 7 is an exploded view of the end bearing and support ring of the present invention.

FIG. 8 is an exploded view of the present invention.

Detailed Description

The utility model is further described with reference to the following figures and examples.

Referring to fig. 1 to 8, the bearing hinge comprises a first leaf plate 1, a second leaf plate 2 and a pivot 9, wherein the first leaf plate 1 is provided with a fixed sleeve 11, two ends of the second leaf plate 2 corresponding to the fixed sleeve 11 are provided with movable sleeves, the pivot 9 is inserted into the fixed sleeve 11 and the movable sleeve, the fixed sleeve 11 and the pivot 9 are relatively static, the movable sleeve and the pivot 9 rotate relatively, an end surface bearing is arranged between the end surfaces of the fixed sleeve 11 and the movable sleeve, and a roller bearing is arranged between the movable sleeve and the pivot 9. And the surfaces of the first leaf plate 1 and the second leaf plate 2 are both provided with connecting holes.

An end cover is arranged at the end part of the pivot 9 and inserted into the movable sleeve, and the roller bearing is arranged between the inner wall of the movable sleeve and the periphery of the end cover.

The pivot 9 is a hollow shaft, two end covers are arranged, the two end covers are respectively a first end cover 81 and a second end cover 82, and the first end cover 81 and the second end cover 82 are respectively arranged at two ends of the pivot 9; the locking bolt 4 and the nut 41 are further included, and the locking bolt 4 sequentially penetrates through the first end cover 81, the pivot 9 and the second end cover 82 and then is connected with the nut 41; the second leaf plate 2 is provided with two movable sleeves, the two movable sleeves are respectively a first movable sleeve 21 and a second movable sleeve 22, the first end cap 81 extends into the first movable sleeve 21 and is provided with a first roller bearing 61 with the first movable sleeve 21, and the second end cap 82 extends into the second movable sleeve 22 and is provided with a second roller bearing 62 with the second movable sleeve 22.

The periphery of the end cover is sequentially provided with a bearing matching end 83, a limiting convex ring 84 and an inserting end 85 along the axis direction, the outer diameter of the bearing matching end 83 is smaller than the inner diameter of the pivot 9, the roller bearing is arranged outside the bearing matching end 83, the limiting convex ring 84 abuts against the end surface of the pivot 9, the inserting end 85 is in inserting fit with the pivot 9, and the center of the end cover is provided with a center hole 86 corresponding to the locking bolt 4.

The first leaf plate 1 is provided with the fixed sleeve 11, and the inner wall of the fixed sleeve 11 is in interference fit with the pivot 9; the number of the end face bearings is two, the two end face bearings are a first end face bearing 71 and a second end face bearing 72 respectively, the first end face bearing 71 is located between one end of the fixed sleeve 11 and the first movable sleeve 21, and the second end face bearing 72 is located between the other end of the fixed sleeve 11 and the second movable sleeve 22.

The two ends of the fixing sleeve 11 are respectively provided with an annular groove 111, the periphery of the end face bearing is provided with a support ring 73, one end of the support ring 73 is provided with a positioning protrusion 731, and the positioning protrusion 731 is inserted into the annular groove 111. The end face bearing comprises a ball bearing 75, an inner washer 74 and an outer washer 76, the ball bearing 75 is arranged between the inner washer 74 and the outer washer 76, the ball bearing 75 comprises a plurality of balls 751 and a ball support ring 752, the balls 751 are arranged on the ball support ring 752 in a rolling mode, the upper side and the lower side of each ball 751 are exposed out of the ball support ring 752 and are respectively contacted with the outer washer 76 and the inner washer 74, and the outer washer 76 protrudes out of the support ring 73.

The pivot 9 is provided with a thick section 91 and a thin section 92, the outer diameter of the thick section 91 is larger than that of the thin section 92, the thick section 91 is positioned in the fixed sleeve 11, the thin section 92 is positioned in the second movable sleeve 22, and the thin section 92 is in clearance fit with the second movable sleeve 22.

And a transverse pin 12 is radially inserted between the fixed sleeve 11 and the pivot 9, and the transverse pin 12 is welded with the fixed sleeve 11. The transverse pin 12 and the fixing sleeve 11 are made of the same material, and welding parts are hidden through polishing after welding.

The outer ends of the first movable sleeve 21 and the second movable sleeve 22, which are opposite to the fixed sleeve 11, are respectively provided with a first snap ring 51 and a second snap ring 52, and both the first snap ring 51 and the second snap ring 52 are exposed out of the second leaf plate 2 and are respectively connected with the first outer cover 31 and the second outer cover 32; the first outer cover 31 and the second outer cover 32 are provided with openings on the surface.

Claims

1. The utility model provides a bearing hinge, includes first page or leaf board, second page or leaf board and pivot, and first page or leaf board is equipped with fixed sleeve, and second page or leaf board corresponds fixed sleeve's both ends and is equipped with movable sleeve, and in fixed sleeve and the movable sleeve were inserted to the pivot, fixed sleeve and pivot were static relatively, and movable sleeve and pivot rotate its characterized in that relatively: an end face bearing is arranged between the end faces of the fixed sleeve and the movable sleeve, and a roller bearing is arranged between the movable sleeve and the pivot.

2. The load-bearing hinge according to claim 1, wherein: an end cover is arranged at the end part of the pivot and inserted into the movable sleeve, and the roller bearing is arranged between the inner wall of the movable sleeve and the periphery of the end cover.

3. The load-bearing hinge according to claim 2, wherein: the pivot is a hollow shaft, the number of the end covers is two, the two end covers are respectively a first end cover and a second end cover, and the first end cover and the second end cover are respectively arranged at two ends of the pivot; the locking bolt sequentially penetrates through the first end cover, the pivot and the second end cover and then is connected with the nut; the second page plate is provided with two movable sleeves which are respectively a first movable sleeve and a second movable sleeve, the first end cover extends into the first movable sleeve and is provided with a first roller bearing between the first movable sleeve and the first end cover, and the second end cover extends into the second movable sleeve and is provided with a second roller bearing between the second movable sleeve and the second end cover.

4. The load-bearing hinge according to claim 3, wherein: the periphery of the end cover is sequentially provided with a bearing matching end, a limiting convex ring and an inserting end along the axis direction, the outer diameter of the bearing matching end is smaller than the inner diameter of the pivot, the roller bearing is arranged outside the bearing matching end, the limiting convex ring is abutted against the end surface of the pivot, the inserting end is in inserting fit with the pivot, and the center of the end cover is provided with a center hole corresponding to the locking bolt.

5. The load-bearing hinge according to claim 3, wherein: the first page plate is provided with the fixing sleeve, and the inner wall of the fixing sleeve is in interference fit with the pivot; the end face bearings are two, the two end face bearings are respectively a first end face bearing and a second end face bearing, the first end face bearing is located between one end of the fixed sleeve and the first movable sleeve, and the second end face bearing is located between the other end of the fixed sleeve and the second movable sleeve.

6. The load-bearing hinge according to claim 5, wherein: two ends of the fixed sleeve are respectively provided with an annular groove, the periphery of the end face bearing is provided with a support ring, one end of the support ring is provided with a positioning bulge, and the positioning bulge is inserted into the annular groove; the end face bearing comprises a ball bearing, an inner gasket and an outer gasket, the ball bearing is arranged between the inner gasket and the outer gasket, the ball bearing comprises a plurality of balls and a ball supporting ring, the balls are arranged on the ball supporting ring in a rolling mode, the upper side and the lower side of each ball are exposed out of the ball supporting ring and are respectively contacted with the outer gasket and the inner gasket, and the outer gasket protrudes out of the supporting ring.

7. The load-bearing hinge according to claim 5, wherein: the pivot is provided with a thick section and a thin section, the outer diameter of the thick section is larger than that of the thin section, the thick section is positioned in the fixed sleeve, the thin section is positioned in the second movable sleeve, and the thin section is in clearance fit with the second movable sleeve.

8. The load-bearing hinge according to claim 1, wherein: and a transverse pin is radially inserted between the fixed sleeve and the pivot, and the transverse pin is welded with the fixed sleeve.

9. The load-bearing hinge according to claim 5, wherein: the outer ends of the first movable sleeve and the second movable sleeve, which are back to the fixed sleeve, are respectively provided with a first snap ring and a second snap ring, and the first snap ring and the second snap ring are exposed out of the second page plate and are respectively connected with the first outer cover and the second outer cover; the surfaces of the first outer cover and the second outer cover are provided with openings.

10. The load-bearing hinge according to claim 1, wherein: and the surfaces of the first page plate and the second page plate are provided with connecting holes.