CN109138669B

CN109138669B - Hinge capable of self-lubricating

Info

Publication number: CN109138669B
Application number: CN201811184109.XA
Authority: CN
Inventors: 王修业; 何璇
Original assignee: Nanjing University of Science and Technology
Current assignee: Nanjing University of Science and Technology
Priority date: 2018-10-11
Filing date: 2018-10-11
Publication date: 2023-12-15
Anticipated expiration: 2038-10-11
Also published as: CN109138669A

Abstract

The invention discloses a self-lubricating common hinge, which comprises two hinge plates, two outer rods fixedly connected with the hinge plates respectively, and an inner rod sleeved inside the two outer rods; an annular gap between the outer rod and the inner rod at the upper end is used as a first oil filling port, and a second oil filling port is arranged at the upper end of the outer rod at the lower end; a spiral boss is arranged in the outer rod; a push rod is arranged between the outer rod and the inner rod; the lower end of the push rod is supported on the boss, and the upper end of the push rod is fixedly connected with an oil pushing ring; the oil pushing ring is sleeved on the inner rod; the limiting mechanism is arranged on the inner rod, so that the push rod can only axially slide along the inner rod; when the two hinge plates rotate relatively, the outer rod rotates relatively to the inner rod; the push rod drives the push rod to slide up and down along a spiral boss in the outer rod; pushing to drive the oil pushing ring to slide up and down; the lubricating oil level on the oil pushing ring moves up and down relative to the inner rod to realize self-lubrication.

Description

Hinge capable of self-lubricating

Technical Field

The invention belongs to the field of hardware connectors, and particularly relates to a self-lubricating hinge.

Background

The hinge is a common civil hardware component in daily life, is commonly used at the joint of household doors and windows, furniture and factory and garage gates, and plays a role in connection and opening and closing. At present, as the application field is continuously expanded, various hinges with fine technology gradually appear in the market, such as T-shaped hinges, bearing hinges, hydraulic hinges and the like, so as to adapt to the requirements of different application places. However, the common hinge adopted in the light wooden door and the common wooden furniture is still the best choice of the vast manufacturers due to the advantages of simple structure, low price, simple manufacturing process and the like.

However, the conventional common hinge has a corresponding disadvantage due to a simple structure, wherein the most important point is poor lubrication capability, and the common hinge installed in the common wooden door in the dormitory can normally generate harsh friction sound during opening and closing within 3-5 months. Meanwhile, the common wooden door is not provided with a oiling position, and a user can only drip oil in a gap on the surface of the hinge, and the lubricating oil can be immersed in most areas of the hinge rod piece by manually opening and closing the door for many times; the method not only causes the waste of lubricating oil, but also ensures that the surface of the door cannot be kept clean during oiling, the duration of lubrication is shorter, and the hinge can generate harshness friction sound on average for 3-5 months, namely oiling is needed again. At present, the prior patent makes a oiling hole and an oiling groove convenient to oil, however, because the gap inside the hinge is smaller, the oiling in the mode only can lead to too slow speed of lubricating oil penetrating the hinge, or cause excessive oil leakage after oiling, in addition, the problem that the duration of an oil film is short still can not be solved, and therefore, a self-lubricating common hinge device capable of rapidly oiling is very necessary.

Disclosure of Invention

The invention aims to provide a self-lubricating hinge so as to realize automatic lubrication in the use process of the hinge.

The technical solution for realizing the purpose of the invention is as follows:

a common hinge capable of self-lubricating comprises two hinge plates, two outer rods fixedly connected with the hinge plates respectively, and an inner rod sleeved inside the two outer rods; an annular gap between the outer rod and the inner rod at the upper end is used as a first oil filling port, and a second oil filling port is arranged at the upper end of the outer rod at the lower end; a spiral boss is arranged in the outer rod; a push rod is arranged between the outer rod and the inner rod; the lower end of the push rod is supported on the boss, and the upper end of the push rod is fixedly connected with an oil pushing ring; the oil pushing ring is sleeved on the inner rod; the limiting mechanism is arranged on the inner rod, so that the push rod can only axially slide along the inner rod; when the two hinge plates rotate relatively, the outer rod rotates relatively to the inner rod; the push rod drives the push rod to slide up and down along a spiral boss in the outer rod; pushing to drive the oil pushing ring to slide up and down; the level of the lubricating oil on the oil pusher ring moves up and down relative to the inner rod.

Compared with the prior art, the invention has the remarkable advantages that:

(1) When the two hinge plates rotate relatively, the outer rod rotates relatively to the inner rod; the push rod drives the push rod to slide up and down along a spiral boss in the outer rod; pushing to drive the oil pushing ring to slide up and down; the lubricating oil level on the oil pushing ring moves up and down relative to the inner rod, so that the self-lubricating effect can be realized.

(2) A chamfer is arranged at the upper end of the inner rod; the gap between the upper end of the inner rod and the outer rod is larger, and lubricating oil can quickly flow into the gap between the inner rod and the outer rod along the chamfer when the oil filling cover is opened for filling oil, so that the effect of quick oil filling is realized.

(3) Through lubricating oil evenly distributed in pushing away the oil ring upper surface, promote when driving to push away the oil ring and slide from top to bottom, the lubricating oil level that is located on pushing away the oil ring reciprocates relatively interior pole, realizes 360 comprehensive lubricated effects of interior pole outer wall, promotes lubricating oil utilization, reduces unnecessary waste.

(4) The mechanical structure realizes the lubrication function, has few components, simple structure and low price, can avoid polluting the surface of a wooden door or furniture when the hinge is refueled, has the same simple and feasible disassembly mode as the common hinge, can be processed in batches, and is widely applied to household articles.

The invention is described in further detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a self-lubricating hinge structure according to the present invention.

Fig. 2 is a schematic illustration of the self-lubricating hinge rod connection of the present invention.

Fig. 3 is a schematic view of the structure of the self-lubricating hinge outer rod (lower section) of the invention.

Fig. 4 is a schematic view of the structure of the self-lubricating hinge inner rod of the invention.

Detailed Description

For the purpose of illustrating the technical scheme and technical purposes of the present invention, the present invention is further described below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the self-lubricating common hinge of the invention comprises two hinge plates 2, two outer rods 4 fixedly connected with the hinge plates 2 respectively, and an inner rod 10 sleeved inside the two outer rods 4; an annular gap between the outer rod 4 and the inner rod 10 at the upper end is used as a first oil filling port, and a second oil filling port 5 is arranged at the upper end of the outer rod 4 at the lower end; a spiral boss 9 is arranged in the outer rod 4; a push rod 7 is arranged between the outer rod 4 and the inner rod 10; the lower end of the push rod 7 is supported on a boss 9, and the upper end of the push rod is fixedly connected with an oil pushing ring 6; the oil pushing ring 6 is sleeved on the inner rod 10; the inner rod 10 is provided with a limiting mechanism, so that the push rod 7 can only axially slide along the inner rod 10; when the two hinge plates 2 rotate relatively, the outer rod 4 rotates relatively to the inner rod 10; the push rod 7 drives the push rod 7 to slide up and down along a spiral boss 9 in the outer rod 4; the pushing 7 drives the oil pushing ring 6 to slide up and down; the lubricating oil level on the oil pushing ring 6 moves up and down relative to the inner rod 10, and plays a role in self lubrication.

As an embodiment, the outer wall of the inner rod 10 is provided with a limit groove 8 along the axial direction; the push rod 7 is arranged in the limit groove 8 and can slide up and down along the limit groove 8; the limit groove 8 serves as a limit mechanism, so that the push rod 7 can only axially slide along the inner rod 10.

Further, a chamfer is arranged at the upper end of the inner rod 10; the gap between the upper end of the inner rod 10 and the outer rod 4 is larger, and lubricating oil easily and quickly flows into the gap between the inner rod 10 and the outer rod 4 along the inclined plane, so that the effect of accelerating the oiling process is achieved.

Further, the upper end of the outer rod 4 positioned at the upper end is provided with a detachable oiling cap 1, and when oiling, the oiling cap 1 is detached to drop lubricating oil into a gap between the inner rod 10 and the outer rod 4. The oil injection cap 1 plays a role in dust prevention at the same time.

According to the self-lubricating common hinge, when the two hinge plates rotate relatively, the outer rod rotates relatively to the inner rod; the push rod drives the push rod to slide up and down along a spiral boss in the outer rod; pushing to drive the oil pushing ring to slide up and down; the lubricating oil level on the oil pushing ring moves up and down relative to the inner rod, so that repeated lubrication and self-lubrication can be realized. Meanwhile, a chamfer is arranged at the upper end of the inner rod; the gap between the upper end of the inner rod and the outer rod is larger, and lubricating oil can quickly flow into the gap between the inner rod and the outer rod along the chamfer when the oil filling cover is opened for filling oil, so that the effect of accelerating the oil filling process is realized. Compared with the existing hinges with lubricating function in the market, the hinge adopts a pure mechanical structure for lubrication, the duration of an oil film is prolonged, the structure is simple and easy to process, the cost is low, and the hinge is widely applicable to household articles; the split modular design is adopted, and even if the internal components are damaged, the normal functions of the hinge are not affected; lubricating oil evenly distributed pushes away the oil ring upper surface, promotes to drive when pushing away the oil ring and slides from top to bottom, is located the lubricating oil level that pushes away on the oil ring and reciprocates relative interior pole, has reduced the waste of lubricating oil, promotes lubricating oil utilization, realizes the effect that interior pole outer wall is lubricated comprehensively, has reduced the friction loss between the hinge component, has prolonged life in comparison with the ordinary hinge that does not have the lubrication effect.

Claims

1. The self-lubricating hinge is characterized by comprising two hinge plates (2), two outer rods (4) fixedly connected with the hinge plates (2) respectively, and an inner rod (10) sleeved inside each of the two outer rods (4); an annular gap between the outer rod (4) and the inner rod (10) at the upper end is used as a first oil filling port, and a second oil filling port (5) is arranged at the upper end of the outer rod (4) at the lower end; a spiral boss (9) is arranged in the outer rod (4); a push rod (7) is arranged between the outer rod (4) and the inner rod (10); the lower end of the push rod (7) is supported on the boss (9); the inner rod (10) is provided with a limit groove (8) so that the push rod (7) can only axially slide along the inner rod (10); when the two hinge plates (2) rotate relatively, the outer rod (4) rotates relatively to the inner rod (10); the push rod (7) drives the push rod (7) to slide up and down along a spiral boss (9) in the outer rod (4); the push rod (7) drives the oil pushing ring (6) to slide up and down; the lubricating oil level on the oil pushing ring (6) moves up and down relative to the inner rod (10);

a limiting groove (8) is formed in the outer wall of the inner rod (10) along the axial direction; the push rod (7) is arranged in the limit groove (8) and can slide up and down along the limit groove (8); the limiting groove (8) is used as a limiting mechanism;

the upper end of the outer rod (4) positioned at the upper end is provided with a detachable oiling cap (1).

2. The self-lubricating hinge according to claim 1, characterized in that the upper end of the inner rod (10) is provided with a chamfer.