Hinge capable of preventing hinge cup from releasing

Abstract

The utility model relates to the technical field of hinges, in particular to a hinge capable of preventing a hinge cup from releasing, which comprises a hinge main body and an anti-loosening component, the hinge main body consists of a hinge cup, a hinge arm and a mounting seat, the hinge cup and the mounting seat are respectively used for being mounted on a cabinet body and a cabinet door, the hinge arm is connected with the mounting seat, a U-shaped pin is connected between the hinge arm and the hinge cup, and the anti-loosening component is arranged on the mounting seat. The anti-loosening assembly is connected to the U-shaped pin, the anti-loosening assembly comprises a connecting block, an elastic piece and a clamping block, a threaded hole is connected to the connecting block, and the threaded hole is in threaded connection with the U-shaped pin. According to the utility model, the anti-loosening component can enter and exit from the through holes formed in the hinge arm and the hinge cup along with the U-shaped pin, so that the hinge can be conveniently and quickly mounted and dismounted, the arranged clamping block pushed by the elastic piece can contract during mounting, and the clamping block can be unfolded through rebounding of the elastic piece so as to limit the movement of the U-shaped pin; when an extension cylinder in the limiting assembly approaches the clamping block, the rotation angle of the clamping block can be limited, and damage to the extension cylinder and an elastic part caused by excessive rotation of the extension cylinder is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge technical field, concretely relates to a hinge of preventing hinged cup from tripping. BACKGROUND

[0002] Hinge is the hardware fitting that is applied very widely in present furniture production, it utilizes fixed hinged cup and mounting seat, and then cooperates with the hinge arm that can rotate on the hinged cup, realizes the opening and closing of door body.

[0003] The Chinese patent with the publication number CN204850839U discloses a kind of hinge of preventing hinged cup from tripping, including hinged cup, hinge arm and mounting seat connected in sequence, buffering mechanism is equipped on hinge arm, U-shaped pin is equipped between hinged cup and hinge arm, the connecting shaft of U-shaped pin is located between hinged cup and hinge arm, transmission shaft is located between hinged cup and buffering mechanism, the open end of U-shaped pin is equipped with anti-falling mechanism, anti-falling mechanism includes the limiting head equipped in the open end of U-shaped pin and the anti-falling groove equipped in the connecting part of limiting head and U-shaped pin, hinged cup and hinge arm are opened with connecting hole, connecting shaft and connecting hole are interference fit, hinged cup and buffering mechanism are opened with transmission hole, transmission shaft and transmission hole are clearance fit, limiting head is equipped on the two open ends of U-shaped pin, limiting head and U-shaped pin are integrally processed and formed, anti-falling groove is equipped on the outside of the connecting part of hinged cup and hinge arm, anti-falling groove is equipped on the outside of the connecting part of hinged cup and buffering mechanism.The hinge of preventing hinged cup from tripping of the utility model has strong stability and high reliability.

[0004] However, in the above technical solution, only by setting anti-falling groove on one end of U-shaped pin and setting limiting head, when U-shaped pin axis moves, hinge arm and hinged cup are mutually inclined to make the connecting hole of hinge arm and hinged cup bite anti-falling groove to prevent it from continuing to loosen, but setting anti-falling groove on U-shaped pin will cause the cross-sectional area of U-shaped pin to change, and stress concentration area is easily formed in anti-falling groove, which is prone to fatigue cracks and even pin body fracture under long-term load. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art, and provides a kind of hinge of preventing hinged cup from tripping.

[0006] The technical scheme of the utility model: a kind of hinge of preventing hinged cup from tripping, including hinge main part, it is composed of hinged cup, hinge arm and mounting seat, hinged cup and mounting seat are used to install on cabinet body and cabinet door respectively, hinge arm is connected with mounting seat, U-shaped pin is connected between hinge arm and hinged cup;Anti-loosening assembly is connected on U-shaped pin, and anti-loosening assembly includes connecting block, elastic member and clamping block, connecting block is connected with threaded hole, threaded hole is threadedly connected with U-shaped pin;In use state of anti-loosening assembly, connecting block passes through connecting hole on hinge arm and hinged cup with U-shaped pin, elastic member pushes clamping block to expand and form conical shape to limit the axial direction movement of U-shaped pin.

[0007] Preferably, the anti-loosening assembly further comprises a limiting assembly connected to the connecting block; in use, the limiting assembly limits the angle of the clamping block.

[0008] Preferably, the limiting assembly comprises a threaded rod connected to the connecting block, the threaded rod having the same center as the connecting block; a threaded cylinder threadedly connected to the threaded rod, and an extension cylinder connected to one end of the threaded rod close to the connecting block, the extension cylinder being slidably connected to the clamping block.

[0009] Preferably, the connecting block is cylindrical in shape, and a rectangular accommodating groove is formed on each side of the connecting block to fit the clamping block.

[0010] Preferably, the through hole for connecting the U-shaped pin on the hinge arm and the hinge cup has a diameter greater than that of the U-shaped pin and the threaded cylinder.

[0011] Preferably, anti-slip lines are formed on the outer wall of the threaded cylinder.

[0012] Preferably, an inclined surface is formed on the inner wall of the extension cylinder, and the inclined surface is fitted at an angle to the clamping block.

[0013] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0014] In the utility model, the anti-loosening assembly is arranged at both ends of the U-shaped pin, which can be conveniently and quickly installed and disassembled by entering and exiting the through hole formed in the hinge arm and the hinge cup. The clamping block pushed by the elastic member can be retracted during installation, and is expanded by rebounding of the elastic member to limit movement of the U-shaped pin. When the extension cylinder in the limiting assembly is close to the clamping block, it can limit the rotation angle of the clamping block, preventing excessive rotation from causing damage to the clamping block and the elastic member. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the utility model;

[0016] Figure 2 is a schematic view of the U-shaped pin structure;

[0017] Figure 3 is a sectional view of Figure 1 ;

[0018] Figure 4 is an enlarged view of the structure at A of Figure 3 ;

[0019] Fig. 1 is a hinge body; 2 is a hinge cup; 3 is a hinge arm; 4 is a mounting seat; 5 is a U-shaped pin; 6 is a connecting block; 7 is an elastic member; 8 is a clamping block; 9 is a threaded rod; 10 is a threaded cylinder; 11 is an extension cylinder; 12 is an accommodating groove. DETAILED DESCRIPTION

[0020] Example One

[0021] As Figures 1-4 shown, the hinge of the utility model discloses a kind of to prevent hinged cup tripping, including hinge main body 1 and anti-loosening assembly, hinge main body 1 is by hinged cup 2, hinge arm 3 and mounting seat 4 component, hinged cup 2 and mounting seat 4 are used to install on cabinet body and cabinet door respectively, hinge arm 3 is connected with mounting seat 4, hinge arm 3 is connected with hinged cup 2, and U-shaped pin 5 is connected between hinged cup 2, anti-loosening assembly is connected on U-shaped pin 5, and anti-loosening assembly includes connecting block 6, elastic member 7 and clamping block 8, connecting block 6 is connected with threaded hole, and threaded hole is threadedly connected with U-shaped pin 5;Anti-loosening assembly use state, connecting block 6 passes through hinge arm 3 with the connecting hole of hinged cup 2 with U-shaped pin 5, and elastic member 7 pushes clamping block 8 to expand and form conical shape and limit the axis direction movement of U-shaped pin 5.

[0022] Example two

[0023] As Figures 2-4 shown, the hinge of the utility model discloses a kind of to prevent hinged cup tripping, compared to embodiment one, detailed structure of anti-loosening assembly is recorded in the embodiment, and anti-loosening assembly further includes limiting component, and limiting component is connected on connecting block 6;Limiting component use state, limiting component limits the angle of clamping block 8 expansion;

[0024] Limiting component includes threaded rod 9, threaded cylinder 10 and extension cylinder 11, threaded rod 9 is connected on connecting block 6, threaded rod 9 and the same center of connecting block 6, threaded cylinder 10 is threadedly connected on threaded rod 9, threaded rod 9 is connected with extension cylinder 11 on connecting block 6 one end, and extension cylinder 11 is slidably connected with clamping block 8;

[0025] In an alternative embodiment, the shape of connecting block 6 is cylindrical, and a rectangular accommodating groove 12 is formed on both sides of connecting block 6 to fit clamping block 8;The shape of connecting block 6 enables it to move out with U-shaped pin 5 after being installed on U-shaped pin 5, without the need for additional steps to disassemble connecting block 6;

[0026] In an alternative embodiment, the diameter of the through hole on hinge arm 3 and hinged cup 2 for connecting U-shaped pin 5 is greater than the diameter of U-shaped pin 5 and threaded cylinder 10;When clamping block 8 is retracted, U-shaped pin 5 can be pulled out directly from the through hole, facilitating quick disassembly;

[0027] In an alternative embodiment, anti-slip lines are formed on the outer wall of threaded cylinder 10;Anti-slip lines prevent slipping, facilitating staff to adjust the rotation range of clamping block 8 and prevent damage caused by excessive rotation of clamping block 8 due to external force;

[0028] In an alternative embodiment, the inner wall of the extension cylinder 11 is provided with an inclined surface, which is in contact with the corner of the clamping block 8; the angle of the inclined surface limits the maximum angle of the clamping block 8, and the inclined surface also increases the contact area with the clamping block 8, preventing the local pressure and stress from being too large due to the small contact area.

[0029] In summary, when the utility model is used, the U-shaped pin 5 is connected by passing through the connecting holes on the hinge arm 3 and the hinge cup 2, and when the axis of the U-shaped pin 5 moves, the U-shaped pin 5 gradually moves, at this time, the connecting block 6 at one end gradually approaches the connecting hole, and the two clamping blocks 8 maintain a V-shaped shape under the action of the elastic member 7, the clamping block 8 is in contact with the side wall of the hinge cup 2 to limit the continuous movement of the U-shaped pin 5, and at the same time, because of the existence of the threaded cylinder 10, the threaded cylinder 10 moves along the threaded rod 9 to drive the extension cylinder 11 to move, the inner wall of the extension cylinder 11 is in contact with the two side walls of the clamping block 8, the extension cylinder 11 limits the rotation angle of the clamping block 8 when the clamping block 8 is axially displaced by external force, and prevents the elastic member 7 from being deformed due to excessive external force.

[0030] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited thereto, and various changes can be made within the knowledge range of those skilled in the art without departing from the purpose of the utility model.

Claims

1. A hinge for preventing hinge cup tripping, characterized by, Comprising The hinge body (1) is composed of a hinge cup (2), a hinge arm (3) and a mounting base (4), the hinge cup (2) and the mounting base (4) are used for mounting on the cabinet body and the cabinet door respectively, the hinge arm (3) is connected with the mounting base (4), and the U-shaped pin (5) is connected between the hinge arm (3) and the hinge cup (2); The anti-loosening assembly is connected on the U-shaped pin (5), the anti-loosening assembly comprises a connecting block (6), an elastic element (7) and a clamping block (8), the connecting block (6) is connected with a threaded hole, the threaded hole is threadedly connected with the U-shaped pin (5); in the use state of the anti-loosening assembly, the connecting block (6) passes through the connecting holes on the hinge arm (3) and the hinge cup (2) with the U-shaped pin (5), and the elastic element (7) pushes the clamping block (8) to expand to form a tapered shape to limit the axial movement of the U-shaped pin (5).

2. A hinge to prevent the hinged cup from tripping according to claim 1, characterized in that, The anti-loosening assembly further comprises The limiting assembly is connected on the connecting block (6); in the use state of the limiting assembly, the limiting assembly limits the expansion angle of the clamping block (8).

3. A hinge to prevent the cup from tripping according to claim 2, wherein, The limiting assembly comprises The threaded rod (9) is connected on the connecting block (6), and the threaded rod (9) has the same center as the connecting block (6); The threaded cylinder (10) is threadedly connected on the threaded rod (9), and the threaded rod (9) is connected with the extension cylinder (11) at one end close to the connecting block (6), and the extension cylinder (11) is slidably connected with the clamping block (8).

4. The hinge for preventing the cup from tripping according to claim 1, wherein The connecting block (6) is cylindrical, and a rectangular accommodating groove (12) is formed on both sides of the connecting block (6) and abuts against the clamping block (8).

5. A hinge to prevent the cup from tripping according to claim 3, wherein The through hole for connecting the U-shaped pin (5) on the hinge arm (3) and the hinge cup (2) has a diameter larger than that of the U-shaped pin (5) and the threaded cylinder (10).

6. A hinge to prevent the cup from tripping according to claim 3, wherein Anti-skid lines are formed on the outer wall of the threaded cylinder (10).

7. A hinge to prevent the cup from tripping according to claim 3, wherein An inclined surface is formed on the inner wall of the extension cylinder (11), and the inclined surface abuts against the clamping block (8) at an angle.

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