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CN-224228449-U - Hinge device

CN224228449UCN 224228449 UCN224228449 UCN 224228449UCN-224228449-U

Abstract

The utility model provides a hinge device which comprises a first sheet, a second sheet and a rotating shaft, wherein the first sheet is provided with a first shaft sleeve, the second sheet is provided with a second shaft sleeve, the first shaft sleeve and the second shaft sleeve are sleeved on the rotating shaft, the hinge device further comprises a tail bearing, the tail bearing comprises a bearing main body and a shell, the bearing main body is arranged in the shell, the shell is further provided with a connecting part, the connecting part is fixedly connected with one of the first shaft sleeve or the second shaft sleeve, and the bearing main body and the connecting part are sleeved on the rotating shaft. The hinge device improves the relative rotation between the first leaf and the second leaf through the tail bearing and fixedly connects the tail bearing on the first leaf or the second leaf, so that the tail bearing can be detached along with the first leaf or the second leaf, and the falling risk of the tail bearing is avoided.

Inventors

  • CHEN ZHUO

Assignees

  • 上海天夕实业有限公司

Dates

Publication Date
20260512
Application Date
20250213

Claims (10)

  1. 1. The hinge device comprises a first sheet (1), a second sheet (2) and a rotating shaft (3), wherein the first sheet (1) is provided with a first shaft sleeve (11), the second sheet (2) is provided with a second shaft sleeve (21), the first shaft sleeve (11) and the second shaft sleeve (21) are sleeved on the rotating shaft (3), and the hinge device is characterized by further comprising a tail bearing (4), the tail bearing (4) comprises a bearing main body (41) and a shell (42), the bearing main body (41) is arranged in the shell (42), the shell (42) is further provided with a connecting portion (421), the connecting portion (421) is fixedly connected with the first shaft sleeve (11) or one of the second shaft sleeves (21), and the bearing main body (41) and the connecting portion (421) are sleeved on the rotating shaft (3).
  2. 2. Hinge device according to claim 1, characterized in that it comprises a plurality of tailstock bearings (4), each tailstock bearing (4) being connected to either the first bushing (11) or the second bushing (21), the first bushing (11) and the second bushing (21) being mutually abutted by the tailstock bearings (4).
  3. 3. Hinge device according to claim 1, characterized in that said tailed bearing (4) is integral with said first bushing (11) or said tailed bearing (4) is integral with said second bushing (21).
  4. 4. A hinge device according to claim 3, characterized in that said connecting portion (421) is embedded in said first bush (11) or said second bush (21) so as to be fixedly connected to said first bush (11) or said second bush (21).
  5. 5. The hinge device according to claim 4, wherein the outer diameter of the connecting portion (421) gradually decreases along the insertion direction of the connecting portion (421).
  6. 6. Hinge device according to claim 1, characterized in that said bearing body (41) comprises an upper cover plate (411), a lower cover plate (412) and a plurality of steel balls (413), said upper cover plate (411) and said lower cover plate (412) are arranged opposite to each other, a first groove (414) is provided on the side of said upper cover plate (411) facing said lower cover plate (412), a second groove (415) is provided on the side of said lower cover plate (412) facing said upper cover plate (411), and a plurality of steel balls (413) are provided between said upper cover plate (411) and said lower cover plate (412) and roll along said first groove (414) and said second groove (415).
  7. 7. The hinge device according to claim 6, characterized in that the maximum depth of said first recess (414) and of said second recess (415) is equal to one third of the diameter of said steel ball (413).
  8. 8. The hinge device according to claim 6, characterized in that the spacing of said upper cover plate (411) from said lower cover plate (412) is equal to one third of the diameter of said steel balls (413).
  9. 9. The hinge device according to claim 6, wherein the upper cover plate (411) is disposed on a side of the housing (42) away from the connecting portion (421), the housing (42) half-wraps the upper cover plate (411), and a top surface of the upper cover plate (411) is higher than a top surface of the housing (42).
  10. 10. Hinge device according to claim 4, characterized in that said connection (421) is an interference fit with said first sleeve (11) or said connection (421) is an interference fit with said second sleeve (21).

Description

Hinge device Technical Field The utility model relates to the technical field of hinges, in particular to a hinge device. Background Hinges, which are a very common connecting member in life, are widely used in doors and windows and in numerous structures requiring relative rotation. The traditional hinge mainly comprises a leaf and a rotating shaft, and the leaf is sleeved on the rotating shaft, so that the leaf can rotate. However, the hinge in the prior art is relatively single in structure, and cannot meet the use requirements of some special occasions. For example, on some doors or windows that need to be frequently opened and closed, the service life of the conventional hinge is short, and problems such as looseness and noise are easy to occur. On the basis, the hinge is improved, and the bearing is added into the hinge, so that the relative rotation between the hinge and the rotating shaft is improved, and the rotation of the hinge is smoother. In the use, need cover the bearing together and locate the pivot on, make the bearing can rotate relative to the pivot. When the hinge is damaged and needs to be detached for maintenance, the bearing easily slides off the rotating shaft along with the separation of the leaf, so that the risk of loss is generated. Even if the bearings are not lost, the dropped bearings may be damaged, thereby increasing maintenance costs. Disclosure of utility model The utility model provides a hinge device which is used for solving the problem that a bearing is easy to fall off when a hinge is maintained in the prior art. The utility model provides a hinge device which comprises a first sheet, a second sheet and a rotating shaft, wherein the first sheet is provided with a first shaft sleeve, the second sheet is provided with a second shaft sleeve, the first shaft sleeve and the second shaft sleeve are sleeved on the rotating shaft, the hinge device further comprises a tail bearing, the tail bearing comprises a bearing main body and a shell, the bearing main body is arranged in the shell, the shell is further provided with a connecting part, the connecting part is fixedly connected with one of the first shaft sleeve or the second shaft sleeve, and the bearing main body and the connecting part are sleeved on the rotating shaft. According to the hinge device provided by the utility model, the hinge device comprises a plurality of tail bearings, each tail bearing is connected with the first shaft sleeve or the second shaft sleeve, and the first shaft sleeve and the second shaft sleeve are mutually abutted through the tail bearings. According to the hinge device provided by the utility model, the tail bearing and the first shaft sleeve are integrally formed or the tail bearing and the second shaft sleeve are integrally formed. According to the hinge device provided by the utility model, the connecting part is embedded into the first shaft sleeve or the second shaft sleeve so as to be fixedly connected with the first shaft sleeve or the second shaft sleeve. According to the hinge device provided by the utility model, the outer diameter of the connecting part is gradually reduced along the embedding direction of the connecting part. According to the hinge device provided by the utility model, the bearing main body comprises the upper cover plate, the lower cover plate and a plurality of steel balls, wherein the upper cover plate and the lower cover plate are opposite to each other, a first groove is formed in one surface of the upper cover plate, which faces the lower cover plate, a second groove is formed in one surface of the lower cover plate, which faces the upper cover plate, and the steel balls are arranged between the upper cover plate and the lower cover plate and roll along the first groove and the second groove. According to the hinge device provided by the utility model, the maximum depth of the first groove and the second groove is equal to one third of the diameter of the steel ball. According to the hinge device provided by the utility model, the distance between the upper cover plate and the lower cover plate is equal to one third of the diameter of the steel ball. According to the hinge device provided by the utility model, the upper cover plate is arranged on one side, far away from the connecting part, of the shell, the shell half-wraps the upper cover plate, and the top surface of the upper cover plate is higher than the top surface of the shell. According to the hinge device provided by the utility model, the connecting part is in interference fit with the first shaft sleeve or the connecting part is in interference fit with the second shaft sleeve. The hinge device comprises a first sheet, a second sheet, a rotating shaft and a tail bearing, wherein the first sheet and the second sheet are sleeved on the rotating shaft, so that the first sheet and the second sheet can rotate relative to the rotating shaft. Meanwhile, the utility model also adds the tail bearing,