CN218844827U

CN218844827U - Damping hinge device

Info

Publication number: CN218844827U
Application number: CN202223158824.0U
Authority: CN
Inventors: 喻立新; 林俊佑
Original assignee: C Jac Industrial Co ltd
Current assignee: C Jac Industrial Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-04-11
Anticipated expiration: 2032-11-28

Abstract

The utility model provides a damping hinge device, including outer body and interior body, interior body is installed outside this internally, interior body is the sleeve, be equipped with the end cover in the interior body, a piston, bearing and piston rod, bearing and interior body internal surface interference fit, piston rod one end and piston fixed connection, piston rod and bearing sliding connection, the internal surface sliding connection of piston and interior body, end cover and interior body internal surface sliding connection, be provided with connecting piece one on the end cover, connecting piece one and outer body internal surface sliding connection, piston rod department is equipped with rotatory first, rotatory first and outer body internal surface sliding connection, piston rod embedding rotatory first one end in and with rotatory first sliding connection, rotatory first other end is equipped with a pair of spiral arch about central symmetry, the rotating head has rotatory first two through spiral arch adaptation, rotatory first two cooperation rotatory first of rotating head is used for making damping hinge device rotary motion convert linear motion to linear motion with the drive piston rod along bearing and interior body linear motion.

Description

Damping hinge device

Technical Field

The utility model relates to a damping hinge technical field especially relates to a damping hinge device.

Background

The damping hinge is a mechanical device which is used for connecting two solids and allows the two solids to rotate, the damping hinge device which moves slowly is obtained, and the service life and the quality of a product can be prolonged. The hinge can be of various types, such as a common hinge, a tobacco pipe hinge, a hydraulic hinge and the like.

In prior art, the outer body part of damping hinge, drive the rotation axis of attenuator, it relies on the inside viscous fluid who fills of attenuator to produce damping force, when outside atress rotates the dabber, viscous fluid produces damping force in the dabber promotes the body, make object slow motion, however, the hinge attenuator has produced damping force when closed, also can produce damping force when can opening the hinge, this just leads to when using, not only will overcome the resistance of object itself, the resistance that two attenuators produced when still need overcome two hinges and open.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a damping hinge device to overcome the not enough that exists among the prior art.

In order to solve the technical problem, the technical scheme of the utility model is that: a damping hinge device comprises an outer body and an inner body, wherein the inner body is arranged in the outer body, the inner body is a sleeve, the outer body is two detachable shells, and the damping hinge device is characterized in that an end cover, a piston, a bearing and a piston rod are arranged in the inner body, the bearing is in interference fit with the inner surface of the inner body, one end of the piston rod is fixedly connected with the piston, the piston rod is in sliding connection with the bearing, the piston is in sliding connection with the inner surface of the inner body, the end cover is in sliding connection with the inner surface of the inner body, a first connecting piece is arranged on the end cover and is in sliding connection with the inner surface of the outer body, a first rotating head is arranged at the position of the piston rod and is in sliding connection with the inner surface of the outer body, the piston rod is embedded into one end of the first rotating head and is in sliding connection with the first rotating head, a pair of spiral protrusions which are symmetrical about the center is arranged at the other end of the first rotating head, a second rotating head is matched with the rotating head through the spiral protrusions, and is used for converting the rotary motion of the hinge damping device into linear motion so as to drive the piston rod to move linearly along the bearing and the inner body.

As the utility model discloses a damping hinge device's improvement, this internal spring that is provided with of interior, the spring both ends correspond and end cover front end and piston front end contact.

As an improvement of the present invention, the contact area of the spiral protrusion and the rotating head is gradually increased from the surface of the first rotating head to the top of the spiral protrusion.

As an improvement of the damping hinge device of the present invention, the end cover surface is provided with a ring groove, and the ring groove is used for installing the sealing ring.

As an improvement of the utility model, the inner body is provided with a sealing groove for installing a sealing ring near the end cover.

Compared with the prior art, the beneficial effects of the utility model are that: when the hinge is opened, the outer body rotates around the outer body connecting piece I, meanwhile, the outer body drives the rotating head I to rotate around the rotating head II, the rotating head II is matched with the rotating head I and used for converting the rotating motion of the damping hinge device into linear motion, the rotating head I slides along the outer body to drive the piston rod, the piston rod moves linearly along the bearing and the inner body, the piston rod pushes the piston to extrude hydraulic oil in the inner body, and the extrusion force of spiral protrusions between the rotating head I and the rotating head II is offset in the flowing process of the hydraulic oil in the inner body, so that the stable opening and closing effect of the hinge is achieved; when the hinge needs to be closed, the slightly compressed spring extrudes the piston, and the piston rod pushes the first rotating head, so that the resistance between the first rotating head and the second rotating head is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a schematic structural diagram of the first rotary head and the second rotary head of the present invention.

Wherein, 1, the outer body; 2. an inner body; 3. an end cap; 4. a piston; 5. a bearing; 6. a piston rod; 7. a first connecting piece; 8. rotating the first head; 9. rotating the second head; 10. a spiral protrusion; 11. a spring; 12. an annular groove; 13. sealing the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 4, a damping hinge device includes an outer body 1 and an inner body 2, the inner body 2 is installed in the outer body 1, wherein the inner body 2 is a sleeve, the outer body 1 is two detachable shells, an end cover 3, a piston 4, a bearing 5 and a piston rod 6 are arranged in the inner body 2, the bearing 5 is in interference fit with the inner surface of the inner body 2, one end of the piston rod 6 is fixedly connected with the piston 4, the piston rod 6 is in sliding connection with the bearing 5, the piston 4 is in sliding connection with the inner surface of the inner body 2, the end cover 3 is in sliding connection with the inner surface of the inner body 2, a first connecting piece 7 is arranged on the end cover 3, the first connecting piece 7 is in sliding connection with the inner surface of the outer body 1, a first rotating head 8 is arranged at the position of the piston rod 6, the first rotating head 8 is in sliding connection with the inner surface of the outer body 1, the piston rod 6 is embedded into one end of the first rotating head 8 and is in sliding connection with the first rotating head 8, a pair of spiral protrusions 10 which are symmetrical about the center is arranged at the other end of the first rotating head 8, and the first rotating head is adapted to enable the damping hinge device to convert the linear motion of the damping hinge device into the linear motion of the inner body 2 along the linear motion of the bearing 5 and the inner body 2.

The concrete theory of operation of this hinge device does, first 7 of outer body 1 connecting piece and second 9 rotating heads are all installed in fixed department, outer body 1 is in the same place with the object installation that needs the rotation, when rotatory object, outer body 1 rotates round first 7 of outer body 1 connecting piece, simultaneously because outer body 1 and first 8 sliding connection of rotating head, first 8 rotating head rotates with second 9 rotating head to be connected, outer body 1 drives first 8 rotating head and becomes linear motion through spiral protrusion with circular motion, first 8 rotating head of second 9 extrusion rotating head advances along outer body 1, first 8 extrusion piston rods 6 of rotating head, hydraulic oil in body 2 in the piston rod 6 promotes, hydraulic oil offsets the extrusion force that first 8 rotating head and second 9 rotating head produced.

As shown in fig. 2 and 3, a spring 11 is arranged in the inner body 2, and two ends of the spring 11 are correspondingly contacted with the front end of the end cover 3 and the front end of the piston 4.

The spring 11 under slight compression presses the piston 4, and the piston rod 6 pushes the first rotating head 8, so that the resistance between the first rotating head 8 and the second rotating head 9 is reduced.

As shown in FIGS. 3 and 4, the contact area of the spiral protrusion 10 and the rotary head II 9 is gradually increased from the surface of the rotary head I8 to the top of the spiral protrusion. The contact area of the spiral protrusion 10 and the second rotating head 9 is gradually increased from the surface of the first rotating head 8 to the top of the spiral protrusion for reducing the extrusion force when the hinge is opened and closed.

The surface of the end cover 3 is provided with an annular groove 12, and the annular groove 12 is used for installing a sealing ring. The inner body 2 is provided with a sealing groove 13 for mounting a sealing ring at a position close to the end cover 3. By installing sealing rings in the annular groove 12 and the sealing groove 13, leakage of hydraulic oil in the inner body 2 is prevented.

When the hinge is opened, the outer body 1 rotates around the first connecting piece 7 of the outer body 1, meanwhile, the outer body 1 drives the first rotating head 8 to rotate around the second rotating head 9, the second rotating head 9 is matched with the first rotating head 8 and used for converting the rotary motion of the damping hinge device into linear motion, the first rotating head 8 slides along the outer body 1 to drive the piston rod 6, the piston rod 6 linearly moves along the bearing 5 and the inner body 2, the piston rod 6 pushes the piston 4 to extrude hydraulic oil in the inner body 2, and the extrusion force of the spiral protrusion between the first rotating head 8 and the second rotating head 9 is offset in the flowing process of the hydraulic oil in the inner body 2, so that the stable opening and closing effect of the hinge is achieved; when the hinge needs to be closed, the slightly compressed spring 11 presses the piston 4, the piston rod 6 pushes the first rotating head 8, and resistance between the first rotating head 8 and the second rotating head 9 is reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A damping hinge device comprises an outer body and an inner body, wherein the inner body is arranged in the outer body, the inner body is a sleeve, the outer body is two detachable shells, and the damping hinge device is characterized in that an end cover, a piston, a bearing and a piston rod are arranged in the inner body, the bearing is in interference fit with the inner surface of the inner body, one end of the piston rod is fixedly connected with the piston, the piston rod is in sliding connection with the bearing, the piston is in sliding connection with the inner surface of the inner body, the end cover is in sliding connection with the inner surface of the inner body, a first connecting piece is arranged on the end cover and is in sliding connection with the inner surface of the outer body, a first rotating head is arranged at the position of the piston rod and is in sliding connection with the inner surface of the outer body, the piston rod is embedded into one end of the first rotating head and is in sliding connection with the first rotating head, a pair of spiral protrusions which are symmetrical about the center is arranged at the other end of the first rotating head, a second rotating head is matched with the rotating head through the spiral protrusions, and is used for converting the rotary motion of the hinge damping device into linear motion so as to drive the piston rod to move linearly along the bearing and the inner body.

2. The damping hinge device as claimed in claim 1, wherein a spring is disposed in the inner body, and both ends of the spring are correspondingly in contact with the front end of the end cap and the front end of the piston.

3. The damping hinge device as claimed in claim 1, wherein the contact area of the spiral protrusion with the first rotary head gradually increases from the surface of the first rotary head to the top of the spiral protrusion.

4. The damping hinge device as claimed in claim 1, wherein the end cap has an annular groove on its surface for receiving a sealing ring.

5. The damped hinge assembly of claim 1 wherein the inner body is provided with a seal groove adjacent the end cap for receiving a seal ring.