1. The utility model provides a straight curved hinge, includes hinge seat (1) and hinge cup (2), its characterized in that: a hinged arm (5) is arranged at the front end of the hinged seat (1), one end of the hinged arm (5) is connected with a connecting plate (6), the front end of the hinged cup (2) is provided with a mounting opening (3), a lubricating device (4) is arranged inside the mounting opening (3), the lubricating device (4) comprises a lubricating oil tank (41), one side of the lubricating oil tank (41) is provided with an oil inlet, an oil sealing plug (46) is arranged in the oil inlet, a pressure supply device (42) is arranged in the lubricating oil tank (41), the pressure supply device (42) comprises an air inlet cylinder (421), an oil outlet pipe (43) is arranged behind the air inlet cylinder (421) in the lubricating oil tank (41), one end of the lubricating oil tank (41) is provided with a threaded column (44), a threaded cap (45) is installed on the outer side of the threaded column (44) in a threaded mode, and a pressure column (423) is arranged inside the air inlet cylinder (421).

2. A straight-bending hinge according to claim 1, wherein: the pressure column (423) is L-shaped, one end of the pressure column (423) is provided with an air plug (424), the other end of the pressure column (423) penetrates through the threaded column (44) and the threaded cap (45) and extends to one end of the threaded cap (45), and the other end of the pressure column (423) is installed at the front end of the connecting plate (6).

3. A straight-bending hinge according to claim 1, wherein: one end of the air inlet cylinder (421) is fixedly connected to the inner wall of one side of the lubricating oil tank (41), and the other end of the air inlet cylinder (421) is provided with a one-way door (422).

4. A straight-bending hinge according to claim 2, wherein: the air plug (424) is made of rubber, and the air plug (424) is attached to the inner wall of the air inlet cylinder (421).

5. A straight-bending hinge according to claim 1, wherein: the oil outlet pipe (43) is made of soft plastic, one end of the oil outlet pipe (43) is located in the position, close to the bottom end, of the interior of the lubricating oil tank (41), and the other end of the oil outlet pipe (43) is arranged at the connecting position of the hinged arm (5) and the connecting plate (6).

6. A straight-bending hinge according to claim 1, wherein: be provided with first pivot (7) between connecting plate (6) and hinge arm (5), connecting plate (6) are connected through first pivot rotation with hinge arm (5), be provided with second pivot (8) between hinge cup (2) and connecting plate (6), hinge cup (2) are connected through second pivot rotation with connecting plate (6).

7. A straight-bending hinge according to claim 6, wherein: the first rotating shaft (7) comprises a torsion spring (701), an air bag (702) is glued inside the torsion spring (701), a plurality of throat hoops (9) are hooped on the outer surface of the torsion spring (701), and a combined hoop of the torsion spring (701) and the air bag (702) is clamped into a cylindrical shape by the throat hoops (9); the first rotating shaft (7) and the second rotating shaft (8) have the same structure.

Background

Hinges, also known as hinges, are mechanical devices used to connect two solid bodies and allow relative rotation between them, and may be made of movable components or foldable materials, and are mainly installed on doors and windows, while hinges are more installed on cabinets.

In order to solve the above problems, a conventional hinge is proposed, in which noise is easily generated due to friction in long-term use, a rotating shaft has a small wear diameter or a hole for mounting the rotating shaft has a large wear diameter, and parts of the hinge having an excessively long use time are rusted to affect use of the hinge.

Disclosure of Invention

The invention mainly aims to provide a straight-bending hinge, which solves the problems that the conventional hinge is easy to generate noise due to friction after long-time use, the diameter of a rotating shaft is reduced due to abrasion, the diameter of a hole for mounting the rotating shaft is increased due to abrasion, and parts of the hinge which are used for a long time are rusted to influence the use of the hinge.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a straight curved hinge, includes that the hinge sits and the hinge cup, the front end that the hinge sat is provided with the hinge arm, the one end of hinge arm is connected with the connecting plate, the front end of hinge cup is provided with the installing port, the inside of installing port is provided with lubricating arrangement, lubricating arrangement includes the lubricating-oil tank, lubricating-oil tank one side is equipped with the oil inlet, install in the oil inlet and seal the oil plug, the inside of lubricating-oil tank is provided with and puts, give and put including the admission pipe, the rear of the inside admission pipe of lubricating-oil tank is provided with out oil pipe, the one end of lubricating-oil tank is provided with the screw thread post, the screw cap is installed to the outside screw thread of screw thread post, the inside of admission pipe is provided with the pressure column.

Preferably, the pressure column is L-shaped, one end of the pressure column is provided with an air plug, the other end of the pressure column penetrates through the threaded column and the threaded cap and extends to one end of the threaded cap, and the other end of the pressure column is mounted at the front end of the connecting plate.

Preferably, one end of the air inlet cylinder is fixedly connected to the inner wall of one side of the lubricating oil tank, and the other end of the air inlet cylinder is provided with a one-way door.

Preferably, the air plug is made of rubber, and the air plug is attached to the inner wall of the air inlet cylinder.

Preferably, the oil outlet pipe is made of soft plastic, one end of the oil outlet pipe is located in the position, close to the bottom end, of the inside of the lubricating oil tank, and the other end of the oil outlet pipe is arranged at the joint of the hinged arm and the connecting plate.

Preferably, a first rotating shaft is arranged between the connecting plate and the hinged arm, the connecting plate and the hinged arm are rotatably connected through the first rotating shaft, a second rotating shaft is arranged between the hinged cup and the connecting plate, and the hinged cup and the connecting plate are rotatably connected through the second rotating shaft.

Preferably, the first rotating shaft comprises a torsion spring, an air bag is glued inside the torsion spring, a plurality of throat hoops are arranged on the outer surface of the torsion spring in a hooping mode, and a combined hoop of the torsion spring and the air bag is cylindrical by the throat hoops; the first rotating shaft and the second rotating shaft have the same structure.

Compared with the prior art, the invention has the following beneficial effects:

1. the pressure column is designed into an L shape, so that the pressure column is more convenient to connect with the connecting plate, and the pressure column is convenient to use; can prevent through the lubricating oil tank that lubricating oil from leaking from the junction of air inlet cylinder and lubricating oil tank, can prevent through the one-way door on the one hand that lubricating oil from getting into the air inlet cylinder, on the other hand enables in the air admission lubricating oil tank.

2. The air in the air inlet cylinder can be pressed into the lubricating oil tank by the aid of the air plug through opening the door and pressure supplied by the pressure column, and when the door is closed, the air plug is pulled by the pressure column and bends to enable outside air to enter the air inlet cylinder again.

3. The lubricant in the lubricating oil tank can be discharged to the joint of the hinged arm and the connecting plate through the oil outlet pipe, and the oil outlet pipe is soft and can be deformed more easily, so that the oil outlet pipe is convenient to use; the hinge cup can be movably connected with the connecting plate through the hinge arm, so that the hinge is convenient to use.

4. Through the torsion spring, the air bag and the hose clamp, the diameter of the hose clamp can be adjusted under the condition that the diameter of the rotating shaft is reduced due to abrasion or the diameter of a hole for installing the rotating shaft is increased due to abrasion under the condition of long-time use, the diameter of the rotating shaft is increased under the elasticity of the torsion spring and the pre-inflated air bag, and noise caused by abrasion is prevented.

Drawings

FIG. 1 is a schematic view of an overall structure of a straight-bending hinge according to the present invention;

FIG. 2 is a schematic view of the internal structure of a lubricating oil tank of a straight-bending hinge according to the present invention;

FIG. 3 is an exploded view of a lubricating oil tank of a straight-bending hinge according to the present invention;

FIG. 4 is an exploded view of a pressure feeding device for a straight-bending hinge according to the present invention

FIG. 5 is a cross-sectional view of a first shaft of a straight-bending hinge according to the present invention;

fig. 6 is a partial view of the first shaft of a straight bending hinge according to the present invention.

In the figure: 1. hinging and seating; 2. reaming the cup; 3. an installation port; 4. a lubricating device; 41. a lubricating oil tank; 42. a pressure feeding device; 421. an air inlet cylinder; 422. a one-way door; 423. a pressure column; 424. an air plug; 43. an oil outlet pipe; 44. a threaded post; 45. a threaded cap; 46. sealing an oil plug; 5. a hinged arm; 6. a connecting plate; 7. a first rotating shaft; 701. a torsion spring; 702. an air bag; 8. a second rotating shaft; 9. a hose clamp.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, a straight-bending hinge includes a hinge base 1 and a hinge cup 2, a hinge arm 5 is provided at a front end of the hinge base 1, one end of the hinge arm 5 is connected with a connecting plate 6, a mounting port 3 is provided at a front end of the hinge cup 2, a lubricating device 4 is provided inside the mounting port 3, the lubricating device 4 includes a lubricating oil tank 41, an oil inlet is provided at one side of the lubricating oil tank 41, an oil seal plug 46 is installed in the oil inlet, a pressure feeding device 42 is provided inside the lubricating oil tank 41, the pressure feeding device 42 includes an air inlet cylinder 421, an oil outlet pipe 43 is provided behind the air inlet cylinder 421 inside the lubricating oil tank 41, a threaded column 44 is provided at one end of the lubricating oil tank 41, a threaded cap 45 is installed on an outer side thread of the threaded column 44, and a pressure column 423 is provided inside the air inlet cylinder 421.

In this embodiment, the pressure column 423 has an L shape, one end of the pressure column 423 is provided with an air plug 424, the other end of the pressure column 423 passes through the threaded column 44 and the threaded cap 45 and extends to one end of the threaded cap 45, and the other end of the pressure column 423 is mounted at the front end of the connecting plate 6.

Specifically, the pressure column 423 is set to be L-shaped, so that the pressure column 423 is more convenient to be connected with the connecting plate 6, and the pressure column 423 is convenient to use.

In this embodiment, one end of the air inlet tube 421 is fixedly connected to the inner wall of one side of the lubricating oil tank 41, and the other end of the air inlet tube 421 is provided with a one-way door 422.

Specifically, lubricating oil can be prevented from leaking out from the connection between the air inlet cylinder 421 and the lubricating oil tank 41 by the lubricating oil tank 41, and lubricating oil can be prevented from entering the air inlet cylinder 421 by the one-way door 422 on the one hand, and air can enter the lubricating oil tank 41 on the other hand.

In this embodiment, the air plug 424 is made of rubber, and the air plug 424 is attached to the inner wall of the air inlet tube 421.

Specifically, the air in the air intake tube 421 can be pressed into the lubricating oil tank 41 by providing the air plug 424 to pressurize the air plug 424 by the pressure column 423 through opening the door, and when the door is closed, the air plug 424 is pulled by the pressure column 423, and the air plug 424 is curved into a hemispherical shape so that the external air enters the air intake tube 421 through the hole of the screw cap 45 in which the pressure column 423 is provided.

In this embodiment, the oil outlet pipe 43 is made of a soft plastic material, one end of the oil outlet pipe 43 is located inside the lubricating oil tank 41 and close to the bottom end, and the other end of the oil outlet pipe 43 is disposed at the connection position of the hinge arm 5 and the connecting plate 6.

Specifically, the lubricant in the lubricating oil tank 41 can be discharged to the joint of the hinge arm 5 and the connecting plate 6 through the oil outlet pipe 43, and the oil outlet pipe 43 is soft and can be deformed more easily, so that the oil outlet pipe 43 is convenient to use.

A first rotating shaft 7 is arranged between the connecting plate 6 and the hinged arm 5, the connecting plate 6 is rotatably connected with the hinged arm 5 through the first rotating shaft, a second rotating shaft 8 is arranged between the hinged cup 2 and the connecting plate 6, and the hinged cup 2 is rotatably connected with the connecting plate 6 through the second rotating shaft.

Particularly, the hinge cup 2 and the connecting plate 6 can be movably connected through the hinge arm 5, and the hinge is convenient to use.

In this embodiment, the first rotating shaft 7 includes a torsion spring 701, an air bag 702 is glued inside the torsion spring 701, a plurality of throat hoops 9 are hooped on the outer surface of the torsion spring 701, and a combination of the torsion spring 701 and the air bag 702 is hooped into a cylindrical shape by the throat hoops 9; the first rotating shaft 7 and the second rotating shaft 8 have the same structure.

Specifically, by providing the torsion spring 701, the air bag 702 and the hose clamp 9, the diameter of the hose clamp 9 can be adjusted to increase the diameter of the rotating shaft under the elastic force of the torsion spring 701 and the air bag 702 inflated in advance when the rotating shaft is used for a long time due to the fact that the wear diameter is reduced or the diameter of a hole for installing the rotating shaft is increased due to the wear, so that the noise caused by the wear is prevented.

It should be noted that, the invention is a straight-bending hinge, when in use, the straight-bending hinge is fixed to a pre-opening hole of a device through a screw hole on the hinge, when the device door is opened, the connecting plate 6 can rotate backwards through the hinge arm 5, the rotation of the connecting plate 6 can push the pressure column 423 backwards, the movement of the pressure column 423 can compress the air in the air inlet cylinder 421 and push the one-way door 422 open, the one-way door 422 is closed after the air enters the lubricating oil tank 41, the lubricating oil in the lubricating oil tank 41 is prevented from entering the air inlet cylinder 421, the air enters the lubricating oil tank 41 to increase the air pressure in the lubricating oil tank 41, the air pressure increase can press the lubricating oil in the lubricating oil tank 41 into the oil outlet pipe 43, then the lubricating oil is discharged from the other end of the oil outlet pipe 43 and flows to the joint of the hinge arm 5 and the connecting plate 6, the hinge is lubricated to prevent the hinge from generating noise due to excessive friction force, if the diameter of the rotating shaft is reduced or the diameter, the diameter of the rotating shaft can be enlarged under the elasticity of the torsion spring 701 and the pre-inflated air bag 702 by adjusting the diameter of the hose clamp 9, so that the noise caused by abrasion is prevented; when the equipment door is closed, the connecting plate 6 is driven to rotate backwards, the pressure column 423 is driven to move forwards, the air plug 424 is pulled by the pressure column 423, and the air plug 424 is bent into a hemispherical shape, so that outside air enters the air inlet cylinder 421 through the hole in the threaded cap 45, wherein the pressure column 423 is arranged in the hole, and the lubricating oil is circularly extruded.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.