CN209817695U

CN209817695U - Double-shaft hinge

Info

Publication number: CN209817695U
Application number: CN201920113226.0U
Authority: CN
Inventors: 张冬林; 廖邦泓
Original assignee: Foshan He He Xing Technology Industry Co Ltd
Current assignee: Foshan He He Xing Technology Industry Co Ltd
Priority date: 2019-01-23
Filing date: 2019-01-23
Publication date: 2019-12-20
Anticipated expiration: 2029-01-23

Abstract

The utility model relates to a double-shaft hinge, it includes rotation fit's frame page or leaf and fan page or leaf each other, is equipped with two fixed axle sleeves on the frame page or leaf, and two fixed axle sleeve settings are on same axis, are equipped with movable axle sleeve on the fan page or leaf, still include two connecting axles, two fixed axle sleeves of frame page or leaf are respectively through the movable shaft bushing of a connecting axle and fan page or leaf, connecting axle one end and fixed axle sleeve inner wall interference fit, the connecting axle other end and movable axle sleeve inner wall clearance fit. The frame leaf and the fan leaf of the double-shaft hinge are connected through the two connecting shafts, and the connecting shafts and the frame leaf are fixed in an interference fit mode, so that the frame leaf and the connecting shafts do not move relatively when the hinge works, and abrasion is reduced.

Description

Double-shaft hinge

Technical Field

The utility model relates to a hinge, especially a biaxial hinge.

Background

Chinese patent document No. CN 107339039A discloses a fire-resistant sash connection device in 2017, 11/10, which comprises a frame main body hinge and a sash main body hinge, wherein the frame main body hinge is of a saddle-type two-wing structure, the sash main body hinge is axially fixed at a saddle position in the middle of the frame main body hinge, the frame main body hinge and the sash main body hinge are connected through a hinge shaft, two bearings are arranged between the frame main body hinge and the sash main body hinge, and riveting structures located at the upper end and the lower end of the hinge shaft are arranged at axially opposite positions of the frame main body hinge and the sash main body hinge. The hinge shaft is easy to bend when two ends of the hinge shaft of the structure are riveted, so that the rotating smoothness of the frame main body hinge and the fan main body hinge is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure is reasonable, rotate smooth and easy, non-deformable's biaxial hinge.

The purpose of the utility model is realized like this:

the utility model provides a double-shaft hinge, includes looks normal running fit's frame page or leaf and fan page or leaf, is equipped with two fixed axle sleeves on the frame page or leaf, and two fixed axle sleeves set up on same axis, are equipped with movable axle sleeve, its characterized in that on the fan page or leaf: the fan blade is characterized by further comprising two connecting shafts, the two fixed shaft sleeves of the frame blade are respectively connected with the movable shaft sleeves of the fan blades through one connecting shaft, one end of each connecting shaft is in interference fit with the inner wall of the corresponding fixed shaft sleeve, and the other end of each connecting shaft is in clearance fit with the inner wall of the corresponding movable shaft sleeve.

The purpose of the utility model can also adopt the following technical measures to solve:

as a more specific scheme, a metal gasket is arranged between the movable shaft sleeve of the fan blade and the fixed shaft sleeve of the frame blade, and the metal gasket is sleeved outside the connecting shaft. After the metal gasket replaces a small bearing in the prior art, the bearing capacity of the hinge is better, the service life is longer, and the cost is lower.

As a further scheme, the metal gasket is a copper gasket, and the inner wall of the copper gasket is in clearance fit with the outer wall of the connecting shaft. The material of copper packing ring is brass, and the smooth of opening and shutting of hinge can be guaranteed to the self-lubricating characteristic of brass itself.

As a further scheme, one movable shaft sleeve of the fan blade is arranged, and two fixed shaft sleeves of the frame blade are respectively positioned at two ends of the movable shaft sleeve; connecting shafts are respectively inserted into two ends of the movable shaft sleeve. When the connecting shaft is installed, the stress of the connecting shafts at the two ends is consistent, and the hinge is prevented from deforming.

As a further scheme, the two connecting shafts are mutually separated, a separation cavity is formed in the movable shaft sleeve of the fan blade corresponding to the two connecting shafts, and damping grease is arranged in the separation cavity. Damping grease can supply the damping grease that consumes because of the friction to the hinge pivoted position, guarantees the hinge for a long time and rotates smoothly, prolongs the life of hinge.

As a further scheme, the outer diameter of one end of the connecting shaft is large, the outer diameter of the other end of the connecting shaft is small, knurling is further arranged on the outer peripheral face of the large-outer-diameter end of the connecting shaft, and the connecting shaft is in interference fit with the inside of the fixed shaft sleeve through the knurling. Carry out interference fit through the annular knurl, the cooperation effect is better.

As a further proposal, the length of the end with small outer diameter of the connecting shaft is larger than the sum of the length of the fixed shaft sleeve connected with the connecting shaft and the thickness of the metal washer. The small one end of connecting axle external diameter still has partly to insert in the activity axle sleeve after can passing fixed axle sleeve and metal packing ring in proper order for fixed axle sleeve, metal packing ring and activity axle sleeve three are preliminary coaxial, have realized preliminary location promptly.

As a further scheme, the frame is made of a metal plate, an upper fixed crank arm and a lower fixed crank arm are arranged on one side of the frame, the end parts of the fixed crank arms are curled into cylindrical fixed shaft sleeves, and a abdicating groove is formed between the two fixed shaft sleeves; the fan blade is made of a metal plate, a movable crank arm is arranged on one side of the fan blade, the end part of the movable crank arm is curled into a cylindrical movable shaft sleeve, and the movable shaft sleeve is arranged in the abdicating groove. The upper side and the lower side of the hinge are symmetrically distributed, and the stress is more uniform.

As a further scheme, a frame connecting plate is arranged on the surface of the frame leaf and is connected with the frame leaf through a first connecting piece; the fan connecting plate is arranged on the surface of the fan blade and connected with the fan blade through a second connecting piece. The frame leaf is matched with the frame connecting plate and can be fixed with the aluminum-metal window frame section; the sash can be fixed with the aluminum-gold window sash section bar by matching with the sash connecting plate.

As a further scheme, a first reinforcing rib is arranged between the frame leaf and the fixed crank arm so as to improve the connection strength of the frame leaf and the fixed crank arm.

As a further scheme, a second reinforcing rib is arranged between the fan blade and the movable crank arm so as to improve the connection strength of the fan blade and the movable crank arm.

The utility model has the advantages as follows:

(1) the frame leaf and the fan leaf of the double-shaft hinge are connected through the two connecting shafts, and the connecting shafts and the frame leaf are fixed in an interference fit mode, so that the frame leaf and the connecting shafts do not move relatively when the hinge works, and abrasion is reduced;

(2) two connecting shafts of the double-shaft hinge are distributed at two ends of the hinge, and are pressed into the fixed shaft sleeves of the frame leaves by a press machine, and because the two ends are stressed uniformly during installation, the deformation of the frame leaves and the sash leaves caused by uneven stress during assembly can be prevented, and the hinge can be opened and closed more smoothly.

(3) The position between two connecting axles that correspond in the loose axle sleeve of this kind of double-shaft hinge fan leaf forms and separates the vacancy, and this position is used for depositing more extra damping fat, and the damping fat of here can be used for supplementing the damping fat because of the friction consumption to hinge pivoted position, and it is smooth and easy to guarantee that the hinge rotates for a long time, prolongs the life of hinge.

Drawings

Fig. 1 is an exploded schematic view of a first embodiment of the present invention.

Fig. 2 is another angle structure diagram of fig. 1.

Fig. 3 is the structure schematic diagram of the utility model after assembly.

Fig. 4 is a schematic view of the middle frame leaf structure of the present invention.

Fig. 5 is a schematic view of the structure of the middle leaf of the present invention.

Fig. 6 is a schematic view of the end face structure of the present invention.

FIG. 7 is a schematic sectional view A-A of FIG. 6.

Fig. 8 is a schematic structural view of the utility model after being connected with the window frame and the window sash.

Fig. 9 is an enlarged schematic view of B in fig. 8.

FIG. 10 is a schematic view of a blind aluminum rivet structure.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

referring to fig. 1 to 7, a biaxial hinge includes a frame leaf 5 and a leaf 1 which are rotatably matched with each other, the frame leaf 5 is provided with two fixed shaft sleeves 51, the two fixed shaft sleeves 51 are arranged on the same axis, and the leaf 1 is provided with a movable shaft sleeve 11; the fan blade is characterized by further comprising two connecting shafts 3, two fixed shaft sleeves 51 of the frame blade 5 are connected with movable shaft sleeves 11 of the fan blades 1 through the connecting shafts 3 respectively, one end of each connecting shaft 3 is in interference fit with the inner walls of the fixed shaft sleeves 51, and the other end of each connecting shaft 3 is in clearance fit with the inner walls of the movable shaft sleeves 11.

A metal gasket is arranged between the movable shaft sleeve 11 of the fan blade 1 and the fixed shaft sleeve 51 of the frame blade 5, and the metal gasket is sleeved outside the connecting shaft 3.

The metal gasket is a copper gasket 6, and the inner wall of the copper gasket 6 is in clearance fit with the outer wall of the connecting shaft 3.

One movable shaft sleeve 11 of the fan blade 1 is arranged, and two fixed shaft sleeves 51 of the frame blade 5 are respectively positioned at two ends of the movable shaft sleeve 11; the two ends of the movable shaft sleeve 11 are respectively inserted with a connecting shaft 3.

The two connecting shafts 3 are mutually separated, a separation cavity 110 is formed in the movable shaft sleeve 11 of the fan blade 1 corresponding to the two connecting shafts 3, and damping grease is arranged in the separation cavity 110.

The connecting shaft 3 has a large outer diameter at one end and a small outer diameter at the other end, knurls 31 are further arranged on the outer peripheral surface of the large outer diameter end of the connecting shaft 3, and the connecting shaft 3 is in interference fit with the inside of the fixed shaft sleeve 51 through the knurls 31.

The length of the end of the connecting shaft 3 with the small outer diameter is larger than the sum of the length of the fixed shaft sleeve 51 connected with the end and the thickness of the copper washer 6.

The frame leaf 5 is made of metal plate, one side of the frame leaf is provided with an upper fixed crank arm 58 and a lower fixed crank arm 58, the end part of the fixed crank arm 58 is curled into the cylindrical fixed shaft sleeve 51, and a yielding groove 510 is formed between the two fixed shaft sleeves 51; the fan blade 1 is made of a metal plate, one side of the fan blade is provided with a movable crank arm 18, the end part of the movable crank arm 18 is curled into a cylindrical movable shaft sleeve 11, and the movable shaft sleeve 11 is arranged in the abdicating groove 510. The surface of the frame leaf 5 is provided with a frame connecting plate 4, the other side of the frame leaf 5 is locally provided with a folding edge 53 towards the direction of the frame connecting plate 4, and the frame connecting plate 4 is connected with the frame leaf 5 through a first connecting piece. The surface of the frame leaf 5 is provided with a waist-shaped hole 54, the first connecting piece comprises a first screw 57, the frame connecting plate 4 is provided with a first screw hole 42 corresponding to the first screw 57, and the first screw 57 penetrates through the waist-shaped hole 54 to be connected with the first screw hole 42.

The frame leaf 5 is further provided with a first fixed connecting hole 55, and the frame connecting plate 4 is provided with a second fixed connecting hole 43 corresponding to the first fixed connecting hole 55. And a self-tapping and self-drilling screw 56, wherein the self-tapping and self-drilling screw 56 passes through the first fixing and connecting hole 55 and the second fixing and connecting hole 43 (the self-tapping and self-drilling screw 56 can be replaced by a core-pulling aluminum rivet 7, see fig. 10).

A first reinforcing rib 59 is arranged between the frame leaf 5 and the fixed crank arm 58. The method comprises the following steps: a first reinforcing rib 59 is provided between each fixed crank 58 and the frame leaf 5.

The surface of the fan blade 1 is provided with a fan connecting plate 2, and the fan connecting plate 2 is connected with the fan blade 1 through a second connecting piece.

The surface of the fan blade 1 is provided with a fan connecting plate 2, the fan connecting plate 2 is connected with the fan blade 1 through a second connecting piece, and the other side of the fan blade 1 is bent towards the fan connecting plate 2 to form a sunken buckling edge 13.

The second connecting piece comprises a second screw 12 and a fastening screw 15, one end of the fastening screw 15 is provided with an inner hexagonal sinking groove, and the other end of the fastening screw is provided with a tip; the fan blade 1 is provided with a counter bore 14 corresponding to the second screw 12, the fan blade 1 is provided with a abdicating hole 16 corresponding to the fastening screw 15, the fan connecting plate 2 is provided with a second screw hole 21 corresponding to the second screw 12, the fan connecting plate 2 is provided with a third screw hole 22 corresponding to the fastening screw 15, the second screw 12 penetrates through the counter bore 14 and then is in threaded connection with the second screw hole 21, and the fastening screw 15 penetrates through the abdicating hole 16 and then is connected with the third screw hole 22.

Two second reinforcing ribs 19 are arranged between the fan blade 1 and the movable crank arm 18, and the two second reinforcing ribs 19 are distributed at the position close to the middle of the fan blade 1.

The mounting process of the double-shaft hinge comprises the following steps: damping grease is put into the movable shaft sleeve 11 of the fan blade 1, the movable shaft sleeve 11 is arranged between the upper fixed shaft sleeve 51 and the lower fixed shaft sleeve 51 of the frame blade 5, a copper gasket 6 is arranged between the movable shaft sleeve 11 and the fixed shaft sleeve 51, the movable shaft sleeve 11, the copper gasket 6 and the fixed shaft sleeve 51 are opposite in center hole, then one ends of the two connecting shafts 3 with small outer diameters sequentially penetrate through the fixed shaft sleeve 51 and the copper gasket 6 and then are inserted into one end of the movable shaft sleeve 11, and finally one ends of the two connecting shafts 3 with large outer diameters are pressed into the fixed shaft sleeve 51 through a press machine, so that the hinge is installed. Because the two connecting shafts 3 are installed under the same stress, the hinge can be prevented from being deformed due to uneven stress during assembly, and the hinge can be opened and closed more smoothly.

Fig. 8 and 9 are schematic views showing a connection structure of a hinge and a window body, the window body comprises a window frame section bar 8 and a window sash section bar 9, a frame T-shaped groove 81 is formed in an inner annular surface of the window frame section bar 8, a first rib 82 and a second rib 83 are respectively arranged in two sides of an opening of the frame T-shaped groove 81, a window sash T-shaped groove 91 is formed in an outer annular surface of the window sash section bar 9, and a third rib 92 and a fourth rib 93 are respectively arranged in two sides of an opening of the window sash T-shaped groove 91. When the frame leaf 5 is fixedly connected with the window frame section bar 8, the first screw 57 is unscrewed and the self-tapping self-drilling screw 56 is pulled out, so that the frame connecting plate 4 can move along the length direction of the waist-shaped hole 54, and a certain movable adjusting position is arranged between the frame connecting plate 4 and the frame leaf 5, therefore, the frame connecting plate 4 can be inserted into the frame T-shaped groove 81 from the opening of the frame T-shaped groove 81 after being tilted by a certain angle (unlike the prior art, the frame connecting plate needs to be detached and then inserted from the end part of the frame T-shaped groove 81), then, one end of the frame connecting plate 4 is lapped at the inner side of the second retaining edge 83, the frame leaf 5 is lapped at the outer side of the first retaining edge 82, and then the first screw 57 is screwed, so that the frame leaf. In order to further fix the frame leaf 5 and the window frame section bar 8, self-tapping self-drilling screws 56 are adopted to be inserted into the first fixed connecting hole 55 of the frame leaf 5 and the second fixed connecting hole 43 of the frame connecting plate 4 in sequence, and then the frame T-shaped groove 81 is drilled through.

When fan leaf 1 and casement section bar 9 fixed connection, unscrew second screw 21, insert fan connecting plate 2 in fan T type groove 91 through the opening of fan T type groove 91 to make the buckle limit 13 that sinks of fan leaf 1 and fan connecting plate 2 respectively with the inboard butt of third flange 92 and the inboard butt of fourth flange 93, the rethread screws up second screw 21, realizes fan leaf 1 and casement section bar 9 fixed connection promptly. In order to further fix the sash 1 and the sash section bar 9, the fastening screw 15 is screwed, so that the tip end of the fastening screw 15 is slightly inserted into the bottom surface of the sash T-shaped groove 91, the sash can be prevented from being forced to move, and the smooth opening and closing of the window can be ensured.

Claims

1. The utility model provides a double-shaft hinge, includes looks normal running fit's frame page or leaf and fan page or leaf, is equipped with two fixed axle sleeves on the frame page or leaf, and two fixed axle sleeves set up on same axis, are equipped with movable axle sleeve, its characterized in that on the fan page or leaf: the fan blade is characterized by further comprising two connecting shafts, the two fixed shaft sleeves of the frame blade are respectively connected with the movable shaft sleeves of the fan blades through one connecting shaft, one end of each connecting shaft is in interference fit with the inner wall of the corresponding fixed shaft sleeve, and the other end of each connecting shaft is in clearance fit with the inner wall of the corresponding movable shaft sleeve.

2. The biaxial hinge as defined in claim 1, wherein: and a metal gasket is arranged between the movable shaft sleeve of the fan blade and the fixed shaft sleeve of the frame blade, and is sleeved outside the connecting shaft.

3. The biaxial hinge as defined in claim 2, wherein: the metal gasket is a copper gasket, and the inner wall of the copper gasket is in clearance fit with the outer wall of the connecting shaft.

4. The biaxial hinge as defined in claim 1, wherein: one movable shaft sleeve of the fan blade is sleeved, and two fixed shaft sleeves of the frame blade are respectively positioned at two ends of the movable shaft sleeve; connecting shafts are respectively inserted into two ends of the movable shaft sleeve.

5. The biaxial hinge as defined in claim 4, wherein: the two connecting shafts are mutually separated, a separation cavity is formed in the movable shaft sleeve of the fan blade corresponding to the two connecting shafts, and damping grease is arranged in the separation cavity.

6. The biaxial hinge as defined in claim 2, wherein: the connecting shaft is characterized in that the outer diameter of one end of the connecting shaft is large, the outer diameter of the other end of the connecting shaft is small, knurling is further arranged on the outer peripheral face of the large-outer-diameter end of the connecting shaft, and the connecting shaft is in interference fit with the inside of the fixed shaft sleeve through the knurling.

7. The biaxial hinge as defined in claim 6, wherein: the length of the end with the small outer diameter of the connecting shaft is larger than the sum of the length of the fixed shaft sleeve connected with the end and the thickness of the metal washer.

8. The biaxial hinge as defined in claim 1, wherein: the frame is made of a metal plate, an upper fixed crank arm and a lower fixed crank arm are arranged on one side of the frame, the end parts of the fixed crank arms are curled into cylindrical fixed shaft sleeves, and a abdicating groove is formed between the two fixed shaft sleeves; the fan blade is made of a metal plate, a movable crank arm is arranged on one side of the fan blade, the end part of the movable crank arm is curled into a cylindrical movable shaft sleeve, and the movable shaft sleeve is arranged in the abdicating groove.

9. The biaxial hinge as defined in claim 1, wherein: the frame connecting plate is connected with the frame leaf through a first connecting piece; the fan connecting plate is arranged on the surface of the fan blade and connected with the fan blade through a second connecting piece.

10. The biaxial hinge as defined in claim 8, wherein: a first reinforcing rib is arranged between the frame leaf and the fixed crank arm; and a second reinforcing rib is arranged between the fan blade and the movable crank arm.