Oil-free prying-resistant hinge

Abstract

The utility model relates to an oil-free prying-resistant hinge, which aims at solving the technical problem that the rotation of a shaft core and a shaft sleeve is not smooth because external dust easily enters a joint at present, and comprises a hinge sheet A, a hinge sheet B, a round sleeve, a shaft core, a connecting shaft and a connecting ring, the two round sleeves are fixedly arranged at the two ends of the connecting side of the hinge piece A respectively; the shaft core is fixedly arranged in the middle of the connecting side of the blade B; the shaft core is arranged between the two circular sleeves; the two connecting shafts are fixedly arranged at the two ends of the shaft core respectively; the connecting shaft is inserted into the circular sleeve, and the connecting shaft is in running fit with the circular sleeve; the two connecting rings are arranged on the two connecting shafts in a sleeving mode correspondingly. The connecting ring is arranged at the connecting position of the round sleeve and the shaft core, the upper side and the lower side of the connecting ring make contact with the end of the round sleeve and the end of the shaft core respectively, and the rotating shaft has the advantages that the connecting position of the shaft core and the round sleeve is sealed, and external dust is prevented from entering the rotating shaft under the condition that rotation is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to an oil-free anti-pry hinge. Background Art

[0002] A hinge is a mechanical device used to connect two solid bodies and allow them to rotate relative to each other. Hinges are mostly installed on cabinets to provide a buffering function when the cabinet door is closed, minimizing the noise caused by the collision between the cabinet door and the cabinet body when it is closed.

[0003] The shaft core and the shaft sleeve connected by the two leaves of the hinge are rotatably connected, but there is a gap at the connection between the shaft core and the shaft sleeve, and external dust can easily enter the connection, resulting in poor rotation of the shaft core and the shaft sleeve.

[0004] In view of this, we propose an oil-free anti-theft hinge. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide an oil-free anti-pry hinge to solve the current technical problem that external dust easily enters the connection and causes poor rotation of the shaft core and the shaft sleeve.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing an oil-free anti-pry hinge, including a leaf A and a leaf B, and also including a round sleeve, an axis core, a connecting shaft and a connecting ring;

[0007] Two circular sleeves are respectively fixed at two ends of the connecting side of the leaf piece A;

[0008] The shaft core is fixedly arranged in the middle of the connecting side of the leaf piece B;

[0009] Wherein, the shaft core is arranged between the two circular sleeves;

[0010] Two connecting shafts are respectively fixed at two ends of the shaft core;

[0011] Wherein, the connecting shaft is inserted into the circular sleeve, and the connecting shaft and the circular sleeve are rotatably matched;

[0012] The two connecting rings are respectively sleeved on the two connecting shafts;

[0013] Wherein, the connecting ring is arranged at the connection between the circular sleeve and the shaft core, and the upper and lower sides of the connecting ring are in contact with the circular sleeve and the end of the shaft core respectively.

[0014] Preferably, covers are respectively welded on opposite ends of the two circular sleeves, and the end of the connecting shaft contacts the inner side of the cover.

[0015] Preferably, a sealing ring A and a sealing ring B are fixedly provided on opposite sides of the circular sleeve and the shaft core, respectively, annular grooves are provided on the upper and lower sides of the connecting ring, and the sealing ring A and the sealing ring B are movably inserted into and matched with the two annular grooves respectively.

[0016] Preferably, the cross sections of the sealing ring A and the sealing ring B are both semicircular, and the sealing ring A and the sealing ring B are adapted to the annular groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model has the advantage of sealing the connection between the shaft core and the round sleeve by setting a connecting ring, preventing external dust from entering without affecting the rotation, and solving the problem that there is a gap at the connection between the shaft core and the sleeve, and external dust can easily enter the connection, resulting in poor rotation of the shaft core and the sleeve.

[0019] 2. The utility model has the advantages of being sealed at the outer end by setting a cover, dust will not enter the connection, and the connecting shaft can be supported against the cover to share the force borne by the connecting shaft and is not easy to deform.

[0020] 3. The utility model has the advantage of further strengthening the sealing of the connection ring on the connection by providing the sealing ring A, the sealing ring B and the annular groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the shaft core of the utility model;

[0024] Figure 4 For the utility model Figure 3 A magnified schematic diagram of point A;

[0025] In the figure: 1, leaf A; 2, leaf B; 3, round sleeve; 4, shaft core; 5, connecting shaft; 6, cover; 7, connecting ring;

[0026] 301, sealing ring A;

[0027] 401, sealing ring B;

[0028] 701. Annular groove. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0030] Example 1: An oil-free anti-pry hinge, see Figures 1 to 4 , including a sheet A1 and a sheet B2, and also including a round sleeve 3, an axis core 4, a connecting shaft 5 and a connecting ring 7;

[0031] Two circular sleeves 3 are fixedly arranged at the two ends of the connecting side of the leaf A1; the shaft core 4 is fixedly arranged in the middle of the connecting side of the leaf B2; wherein the shaft core 4 is arranged between the two circular sleeves 3; two connecting shafts 5 are fixedly arranged at the two ends of the shaft core 4; wherein the connecting shaft 5 is inserted into the circular sleeve 3, and the outer wall of the connecting shaft 5 contacts the inner wall of the circular sleeve 3; the connecting shaft 5 and the circular sleeve 3 are rotatably matched; two connecting rings 7 are respectively sleeved on the two connecting shafts 5; wherein the connecting ring 7 is arranged at the connection between the circular sleeve 3 and the shaft core 4, and the upper and lower sides of the connecting ring 7 contact the ends of the circular sleeve 3 and the shaft core 4 respectively; the whole is free of gaps and is not easy to be pried.

[0032] The utility model has the advantage of sealing the connection between the shaft core 4 and the circular sleeve 3 by providing a connecting ring 7, thereby preventing external dust from entering without affecting the rotation, thereby solving the problem that there is a gap at the connection between the shaft core 4 and the sleeve, and external dust is easy to enter the connection, resulting in poor rotation of the shaft core 4 and the sleeve.

[0033] Specifically, the two circular sleeves 3 are respectively welded with sealing covers 6 at the opposite ends thereof, and the end of the connecting shaft 5 contacts the inner side of the sealing cover 6 .

[0034] The utility model has the advantages of being sealed at the outer end by arranging the sealing cover 6, preventing dust from entering the connection, and the connecting shaft 5 can be supported against the sealing cover 6 to share the force borne by the connecting shaft 5 and is not easily deformed.

[0035] Furthermore, a sealing ring A301 and a sealing ring B401 are fixedly provided on opposite sides of the circular sleeve 3 and the shaft core 4, respectively. Annular grooves 701 are respectively provided on the upper and lower sides of the connecting ring 7, and the sealing ring A301 and the sealing ring B401 are movably inserted and matched with the two annular grooves 701, respectively.

[0036] The utility model has the advantage of further strengthening the sealing of the connection ring 7 on the connection point by arranging the sealing ring A301, the sealing ring B401 and the annular groove 701.

[0037] Furthermore, the cross-sections of the sealing ring A301 and the sealing ring B401 are both semicircular, and the sealing ring A301 and the sealing ring B401 are adapted to the annular groove 701; the contact surfaces of the sealing ring A301, the sealing ring B401 and the annular groove 701 are curved surfaces, and the rotation is smooth.

[0038] Working principle: When using the device of the utility model, the leaf A1 and the leaf B2 are respectively installed on the corresponding cabinet by screws, the connecting ring 7 is set at the connection between the shaft core 4 and the circular sleeve 3, the connecting ring 7 seals the connection between the shaft core 4 and the circular sleeve 3, the sealing ring A301 and the sealing ring B401 are correspondingly inserted into the annular groove 701, and the cover 6 is sealed at the outer end. When the leaf A1 and the leaf B2 rotate relatively, the shaft core 4 and the circular sleeve 3 rotate relatively, and external dust is prevented from entering without affecting the rotation, and no oiling is required.

[0039] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An oil-free anti-pry hinge, comprising a leaf A (1) and a leaf B (2), characterized in that: Also includes: Two circular sleeves (3) are respectively fixed at two ends of the connecting side of the leaf piece A (1); The shaft core (4) is fixedly arranged in the middle of the connecting side of the leaf piece B (2); Wherein, the shaft core (4) is arranged between the two circular sleeves (3); Two connecting shafts (5) are respectively fixed at two ends of the shaft core (4); Wherein, the connecting shaft (5) is inserted into the circular sleeve (3), and the connecting shaft (5) and the circular sleeve (3) are rotatably matched; Two connecting rings (7) are respectively sleeved on the two connecting shafts (5); The connecting ring (7) is arranged at the connection between the circular sleeve (3) and the shaft core (4), and the upper and lower sides of the connecting ring (7) are in contact with the ends of the circular sleeve (3) and the shaft core (4) respectively.

2. The oil-free anti-pry hinge according to claim 1, characterized in that: A sealing cover (6) is welded to the opposite ends of the two circular sleeves (3), and the end of the connecting shaft (5) contacts the inner side of the sealing cover (6).

3. The oil-free anti-pry hinge according to claim 1, characterized in that: A sealing ring A (301) and a sealing ring B (401) are fixedly provided on opposite sides of the circular sleeve (3) and the shaft core (4), respectively. Annular grooves (701) are respectively provided on the upper and lower sides of the connecting ring (7), and the sealing ring A (301) and the sealing ring B (401) are movably inserted and matched with the two annular grooves (701).

4. The oil-free anti-pry hinge according to claim 3, characterized in that: The cross sections of the sealing ring A (301) and the sealing ring B (401) are both semicircular, and the sealing ring A (301) and the sealing ring B (401) are adapted to the annular groove (701).

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