CN211714851U

CN211714851U - Furniture buffering hinge

Info

Publication number: CN211714851U
Application number: CN201920963132.2U
Authority: CN
Inventors: 陈明开
Original assignee: Guangdong Lianshun Precision Manufacturing Co ltd
Current assignee: Guangdong Lianshun Precision Manufacturing Co ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-10-20
Anticipated expiration: 2029-06-25

Abstract

A furniture buffering hinge comprises a hinge cup, a hinge arm and a buffering oil cylinder, wherein the buffering oil cylinder is arranged in an arm body accommodating cavity of the hinge arm, the hinge cup and the hinge arm are connected through a connecting rod mechanism, and the connecting rod mechanism comprises a transmission arm and a hinge tongue; one end of the transmission arm is connected with the hinge cup through a first rotating shaft; one end of the hinge tongue is connected with the hinge cup through a third rotating shaft, and the other end of the hinge tongue is connected with the hinge arm through a fourth rotating shaft; the surface of the buffer oil cylinder is sleeved with a guide sleeve, the guide sleeve is fixedly installed in the hinge arm, and clamping grooves are formed in two sides of the guide sleeve. The utility model has the advantages that: the small buffer oil cylinder is adopted, the volume of the related movable part can be effectively reduced, and the internal structure of the buffer is more compact and smaller.

Description

Furniture buffering hinge

Technical Field

The utility model belongs to the hinge field, concretely relates to hydraulic buffer hinge is applicable to environment occasions such as wardrobe, cupboard.

Background

The furniture hinge of market mainstream generally includes hinge cup, hinge arm, link mechanism and buffer cylinder, and hinge cup, hinge arm pass through link mechanism and connect, and on buffer cylinder was less than the rotation orbit of coupling mechanism, at the hinge in-process that opens and shuts, link mechanism drove buffer cylinder's piston rod flexible to increase the resistance that opens and shuts of hinge, played the cushioning effect. However, the link mechanism and the buffer oil cylinder mounting structure of the existing furniture hinge are complex, which not only affects the assembly efficiency and the manufacturing cost, but also causes the whole buffer oil cylinder to swing slightly except for the piston rod of the buffer oil cylinder to perform telescopic motion in the opening and closing process of the hinge, so that the sealing ring of the buffer oil cylinder works in an abnormal state for a long time, and is easy to wear, thereby shortening the service life of the buffer oil cylinder.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problem, the utility model provides a furniture buffering hinge, it is simple structure not only, convenient assembling, but also can effectively prolong its life.

The utility model discloses realize that the technical scheme that above-mentioned utility model purpose adopted is: a furniture buffering hinge comprises a hinge cup, a hinge arm and a buffering oil cylinder, wherein the buffering oil cylinder is arranged in an arm body accommodating cavity of the hinge arm, the hinge cup and the hinge arm are connected through a connecting rod mechanism, and the connecting rod mechanism comprises a transmission arm and a hinge tongue;

one end of the transmission arm is connected with the hinge cup through a first rotating shaft, the other end of the transmission arm is connected with the hinge arm through a second rotating shaft, the second rotating shaft is sleeved with a torsion spring, and the torsion spring unidirectionally inhibits the rotation of the transmission arm;

one end of the hinge tongue is connected with the hinge cup through a third rotating shaft, and the other end of the hinge tongue is connected with the hinge arm through a fourth rotating shaft;

the method is characterized in that: the surface of the buffer oil cylinder is sleeved with a guide sleeve, the guide sleeve is fixedly arranged in the hinge arm, clamping grooves are formed in two sides of the guide sleeve, an n-shaped clamping piece is arranged in the clamping grooves in a front-back sliding mode, the front end of the clamping piece is connected with a buffer rod of the buffer oil cylinder, and guide columns are arranged on the left side and the right side of the rear end of the clamping piece; the guide column is cuboid and arranged at the lower part of the rear end of the clamping piece, and a chamfer is arranged at the corner of the guide column;

the hinge tongue on still be provided with the drive groove, the guide post extends into in the drive groove, when the hinge is opened and shut, the hinge tongue is hung through the drive groove and is detained on the guide post, drive clamping piece and uide bushing take place relative displacement, buffer cylinder utilizes the buffer beam to play the damping effect to the clamping piece motion to the realization is to the damping effect of hinge switching motion.

The clamping piece is formed by bending a metal plate, the clamping piece covers the front end and the left end and the right end of the guide sleeve, locking grooves are formed in the left side and the right side of the clamping piece, the clamping piece is sleeved with locking buckles in the left side and the right side of the guide sleeve, and the locking buckles limit the maximum stroke of the forward movement of the clamping piece.

The guide post is formed by outwards stamping the clamping piece body material.

The front end of the guide sleeve is provided with a guide groove, the rear end of the guide sleeve is provided with a positioning groove, a guide convex point is arranged in the hinge arm and extends into the guide groove, the positioning groove is pressed on the fourth rotating shaft, and the guide convex point is matched with the positioning groove to fix the guide sleeve in the hinge arm.

The guide sleeve is internally provided with a mounting hole which is a step hole, the buffer oil cylinder is arranged in the mounting hole, the tail end of the cylinder body part of the buffer oil cylinder is pressed on the step in the mounting hole, and the buffer rod is pressed on the clamping piece.

The locking buckle is a one-way buckle, and a guide inclined plane is arranged on one side surface of the locking buckle facing the front end of the guide sleeve.

The torsion spring is a double torsion spring.

The utility model has the advantages that: 1. simple structure, convenient production and processing and strong market competitiveness. 2. The small buffer oil cylinder is adopted, the volume of the related movable part can be effectively reduced, and the internal structure of the buffer is more compact and smaller. 3. The guide sleeve is sleeved outside the small oil cylinder, the guide sleeve is stressed on the hinge tongue through the clamping piece made of the metal material, and the guide sleeve increases the stress area between the guide sleeve and the buffer oil cylinder, so that power can be uniformly transmitted to the buffer oil cylinder, and the service life of the buffer oil cylinder is ensured.

Drawings

Fig. 1 is the hinge of the present invention in an open state.

Fig. 2 is a schematic view of the hinge of the present invention in a half-open state.

Fig. 3 is a structural assembly drawing of the present invention.

Fig. 4 is the utility model discloses well buffer cylinder and direction cover assembly result of use picture.

Fig. 5 is an assembly view of the middle clip and the guiding sleeve of the present invention.

Detailed Description

The contents of the present invention will be further described with reference to the accompanying drawings, and a furniture buffering hinge comprises a hinge cup 1, a hinge arm 2 and a buffering oil cylinder 3, wherein the buffering oil cylinder 3 is arranged in an arm body accommodating cavity of the hinge arm 2, the hinge cup 1 and the hinge arm 2 are connected through a link mechanism, and the link mechanism comprises a transmission arm 4 and a hinge tongue 5;

one end of the transmission arm 4 is connected with the hinge cup 1 through a first rotating shaft 61, the other end of the transmission arm is connected with the hinge arm 2 through a second rotating shaft 62, the second rotating shaft 62 is sleeved with a torsion spring 7, and the torsion spring 7 unidirectionally inhibits the transmission arm 4 from rotating;

one end of the hinge tongue 5 is connected with the hinge cup 1 through a third rotating shaft 63, and the other end is connected with the hinge arm 2 through a fourth rotating shaft 64;

the method is characterized in that: the surface of the buffer oil cylinder 3 is sleeved with a guide sleeve 8, the guide sleeve 8 is fixedly installed in the hinge arm 2, clamping grooves 88 are formed in two sides of the guide sleeve 8, an n-shaped clamping piece 85 is installed in the clamping grooves 88 in a front-back sliding mode, the front end of the clamping piece 85 is connected with the buffer rod 31 of the buffer oil cylinder 3, and guide columns 81 are arranged on the left side and the right side of the rear end of the clamping piece 85; the guide post 81 is cuboid and arranged at the lower part of the rear end of the clamping piece 85, and a chamfer angle is arranged at the corner of the guide post;

the hinge tongue 5 is further provided with a driving groove 51, the guide post 81 extends into the driving groove 51, when the hinge is opened, the hinge tongue 5 is hung and buckled on the guide post 81 through the driving groove 51, the driving clamping piece 85 and the guide sleeve 8 are relatively displaced, and the buffer oil cylinder 3 plays a role in damping the movement of the clamping piece 85 by utilizing the buffer rod 31, so that the damping effect on the opening and closing movement of the hinge is realized.

The clamping piece 85 is formed by bending a metal plate, the clamping piece 85 covers the front end and the left end and the right end of the guide sleeve 8, locking grooves 86 are formed in the left side and the right side of the clamping piece 85, locking buckles 87 sleeved on the left side and the right side of the guide sleeve 8 limit the maximum stroke of the clamping piece 85 in forward movement.

The guide posts 81 are formed by punching the body material of the clip 85 outwards.

The front end of the guide sleeve 8 is provided with a guide groove 82, the rear end of the guide sleeve 8 is provided with a positioning groove 89, a guide salient point 21 is arranged in the hinge arm 2 and extends into the guide groove 82, the positioning groove 89 is pressed against the fourth rotating shaft 64, and the guide salient point 21 is matched with the positioning groove 89 to fix the guide sleeve 8 in the hinge arm 2.

The guide sleeve 8 is internally provided with a mounting hole 83 which is a step hole, the buffer oil cylinder 3 is arranged in the mounting hole 83, the tail end of the cylinder body part 32 of the buffer oil cylinder 3 is pressed on the step in the mounting hole 83, and the buffer rod 31 is pressed on the clamping piece 85.

The locking buckle 87 is a one-way buckle, and a guide inclined surface is arranged on one side surface of the locking buckle facing the front end of the guide sleeve 8.

The torsion spring 7 is a double torsion spring.

The working principle is as follows: the cushion cylinder in this embodiment is small-size hydro-cylinder, and it possesses small advantage, and consequently it need not great installation space, is favorable to reducing the whole volume of buffering hinge, and reduction in production cost. However, the buffer cylinder has the defects that the buffer stroke is short, and the related force arm cannot be directly connected with the buffer cylinder. Meanwhile, clamping grooves 88 are formed in two sides of the guide sleeve 8, an n-shaped clamping piece 85 is slidably mounted in the clamping grooves 88, and the guide columns 81 are arranged on two sides of the clamping piece 85. The clamping piece is made of metal materials, the semi-surrounding structure is adopted to cover the surface of the guide sleeve, the direction of an opening groove of the clamping piece is opposite to the stress direction of the buffer oil cylinder, and the clamping piece plays a role in connecting the buffer oil cylinder and the hinge tongue. In order to prevent the guide sleeve and the hinge tongue from falling off, the clamping groove in the scheme adopts an inner groove design, the up-down and left-right movement strokes of the clamping piece are limited in the clamping groove, and the movement strokes in the front-back direction are limited by the locking groove 86 and the locking buckle 87, so that the movement strokes of the clamping piece relative to the guide sleeve are only the length of the locking groove.

When the hinge is closed, the hinge cup rotates and gradually folds close to the second rotating shaft, at the moment, the transmission arm 4 rotates anticlockwise by taking the second rotating shaft as a rotating center, the hinge tongue rotates anticlockwise by taking the fourth rotating shaft as a center, the torsion spring compresses, the hinge tongue is restrained by the torsion spring in the rotating process, on the other hand, the driving groove 51 at the tail end of the hinge tongue 5 synchronously rotates clockwise, and the driving groove 51 pushes the clamping piece 85 to move towards the second rotating shaft direction through the guide post 81. Because the guide sleeve is fixed in the hinge arm, when the guide post moves, the clamping piece 85 is inevitably driven to move in the clamping grooves 88 on the two sides of the guide sleeve relative to the guide sleeve, at the moment, the clamping piece and the guide sleeve are relatively displaced, so that the clamping piece compresses the buffer oil cylinder positioned in the guide sleeve, and the damping effect of the cylinder body part 32 of the buffer oil cylinder on the buffer rod 31 is utilized, thereby reducing the closing speed of the hinge, realizing the slow closing of the hinge and playing the role of buffering and closing.

When the hinge is opened, the hinge cup rotates and gradually opens to be far away from the second rotating shaft, at the moment, the transmission arm rotates clockwise by taking the second rotating shaft as a rotating center, the driving groove at the tail end of the hinge tongue is far away from the fourth rotating shaft, the guide sleeve is not pressed by the hinge tongue any more, under the pushing action of the spring inside the buffer oil cylinder and the driving groove, the piston rod extends outwards, the torsion spring and the buffer oil cylinder are respectively and gradually restored from a compression state, and the hinge is smoothly opened.

Wherein, it is required to be noted that: when the hinge is opened and closed, the clamping piece is driven to move relative to the guide sleeve, wherein the guide sleeve is made of a plastic material, so that the clamping piece and the guide sleeve have small friction force and friction working noise when moving relatively. Compared with the technical scheme that the guide sleeve moves relative to the hinge arm in the prior art, the structure is favorable for stable and quiet work with the hinge, and the service life of the structure is effectively prolonged.

Wherein, it is required to be noted that: as shown in fig. 4, in order to make the contact between the guide post and the driving slot smoother, the guide post 81 in this case is disposed in a rectangular shape according to the motion trajectory of the driving slot, and is also disposed at a lower position of the rear end of the clamping piece 85, and the corner of the guide post is provided with a chamfer. When the guide post 81 is in contact with the driving groove, the driving groove can be in contact with the outer contour of the guide post all the time, so that the guide post and the driving groove are in a contact state all the time, and stable transmission of torque is facilitated.

Wherein, it is required to be noted that: in the scheme, the rear end of the guide sleeve 8 is provided with a positioning groove 89, the guide salient point 21 arranged in the hinge arm 2 extends into the guide groove 82, the positioning groove 89 is pressed against the fourth rotating shaft 64, and the guide salient point 21 is matched with the positioning groove 89 to fix the guide sleeve 8 in the hinge arm 2. Because the guide sleeve is fixedly installed, the stress end of the buffer oil cylinder is respectively positioned on the guide sleeve and the clamping piece, and the buffer oil cylinder does not need to directly act on the hinge arm or the hinge tongue or the related rotating shaft, so the torsion spring 7 can be designed into a double torsion spring, and an enough installation space is provided for the double torsion spring. The double-torsion spring is provided with a pair of outer stress feet and a pair of inner stress feet, so that compared with the traditional double-foot torsion spring, the double-torsion spring has better moment transmission performance and longer service life, and is beneficial to the long-term stable and efficient work of the hinge.

Synthesize above-mentioned, compare with the conventional art, the present case has adopted small-size buffer cylinder, and it possesses advantages such as small, and the activity stroke is short, can effectively reduce relevant adapting unit's volume for hinge inner structure is compacter, is favorable to the hinge to be towards the miniaturization, and light-dutyization, the development of economic direction, so can extensively use widely.

Claims

1. A furniture buffering hinge comprises a hinge cup (1), a hinge arm (2) and a buffering oil cylinder (3), wherein the buffering oil cylinder (3) is arranged in an arm body containing cavity of the hinge arm (2), the hinge cup (1) and the hinge arm (2) are connected through a connecting rod mechanism, and the connecting rod mechanism comprises a transmission arm (4) and a hinge tongue (5);

one end of the transmission arm (4) is connected with the hinge cup (1) through a first rotating shaft (61), the other end of the transmission arm is connected with the hinge arm (2) through a second rotating shaft (62), the second rotating shaft (62) is sleeved with a torsion spring (7), and the torsion spring (7) unidirectionally inhibits the rotation of the transmission arm (4);

one end of the hinge tongue (5) is connected with the hinge cup (1) through a third rotating shaft (63), and the other end of the hinge tongue is connected with the hinge arm (2) through a fourth rotating shaft (64);

the method is characterized in that: the surface of the buffer oil cylinder (3) is sleeved with a guide sleeve (8), the guide sleeve (8) is fixedly installed in the hinge arm (2), clamping grooves (88) are formed in two sides of the guide sleeve (8), n-shaped clamping pieces (85) are installed in the clamping grooves (88) in a front-back sliding mode, the front ends of the clamping pieces (85) are connected with a buffer rod (31) of the buffer oil cylinder (3), and guide columns (81) are arranged on the left side and the right side of the rear end of each clamping piece (85); the guide column (81) is cuboid and arranged at the lower part of the rear end of the clamping piece (85), and a chamfer angle is arranged at the corner of the guide column;

the hinge tongue (5) is further provided with a driving groove (51), the guide post (81) extends into the driving groove (51), when the hinge is opened, the hinge tongue (5) is hung and buckled on the guide post (81) through the driving groove (51), the driving clamping piece (85) and the guide sleeve (8) are relatively displaced, and the buffer oil cylinder (3) plays a role in damping the movement of the clamping piece (85) by utilizing the buffer rod (31), so that the damping effect on the opening and closing movement of the hinge is realized.

2. The furniture cushioning hinge of claim 1, wherein: clamping piece (85) bend by sheet metal and form, clamping piece (85) cladding uide bushing (8) the front end and control both ends, clamping piece (85) the left and right sides be provided with locking groove (86), the suit is detained (87) at the locking of uide bushing (8) the left and right sides, the biggest stroke of clamping piece (85) forward motion is injectd in locking knot (87).

3. The furniture cushioning hinge of claim 1, wherein: the guide post (81) is formed by outwards stamping the body material of the clamping piece (85).

4. The furniture cushioning hinge of claim 1, wherein: the front end of the guide sleeve (8) is provided with a guide groove (82), the rear end of the guide sleeve (8) is provided with a positioning groove (89), a guide salient point (21) is arranged in the hinge arm (2) and extends into the guide groove (82), the positioning groove (89) is pressed on the fourth rotating shaft (64), and the guide salient point (21) is matched with the positioning groove (89) to fix the guide sleeve (8) in the hinge arm (2).

5. The furniture cushioning hinge of claim 1, wherein: the guide sleeve (8) is internally provided with a mounting hole (83), the mounting hole is a step hole, the buffer oil cylinder (3) is mounted in the mounting hole (83), the tail end of a cylinder body part (32) of the buffer oil cylinder (3) is pressed on the step in the mounting hole (83), and the buffer rod (31) is pressed on the clamping piece (85).

6. A furniture cushioning hinge according to claim 2, wherein: the locking buckle (87) is a one-way buckle, and a guide inclined plane is arranged on one side surface of the locking buckle facing the front end of the guide sleeve (8).

7. The furniture cushioning hinge of claim 1, wherein: the torsion spring (7) is a double torsion spring.