Double-shaft buffering hinge

Abstract

The invention discloses a double-shaft buffer hinge, and belongs to the technical field of buffer hinges. A double-shaft buffer hinge comprises a fixed swing leaf, a hinge body and a hinge body. The movable swing leaf is rotationally connected to the fixed swing leaf; the rotating sleeve is fixedly connected to the movable swing leaf; the cam is fixedly connected to the fixed swing leaf; the hydraulic oil cylinder is fixedly connected in the cam; the first positioning pin is fixedly connected to the driving end of the hydraulic oil cylinder; the sliding groove is formed in the cam; the first positioning pin is matched with a sliding groove in the cam. A spring sleeve is fixedly connected to the interior of the fixed swing leaf, a compression spring is fixedly connected to the interior of the spring sleeve, a second positioning pin is fixedly connected to the compression spring, and the second positioning pin is matched with a sliding groove in the cam; the hydraulic oil cylinder and the compression spring which are arranged in the device are matched for use, so that the first positioning pin and the second positioning pin can synchronously move on the cam, the stroke of the hydraulic oil cylinder can be effectively increased, and the buffering effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of buffer hinges, and in particular to a double-axis buffer hinge. Background Art

[0002] At present, ordinary hinges are widely used as hinges for building doors and windows. Existing doors and windows mainly use traditional folding hinges, but this type of hinge only has a hinge function. When users close the door, they usually need to push one side of the door toward the door frame with force. This can easily lead to excessive force causing the door and door frame to collide loudly or produce a huge impact between the door and door frame, which will reduce the service life of the door. Hydraulic buffer hinges are also available on the market.

[0003] However, the hydraulic buffer hinge in the prior art generally uses a hydraulic cylinder and a swivel sleeve in combination. However, due to the small size of the hinge, the small hydraulic cylinder has a limited stroke, and the buffer effect may need to be further improved. Summary of the invention

[0004] The purpose of the present invention is to solve the problems raised in the above background technology and to propose a double-axis buffer hinge.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A double-axis buffer hinge, comprising:

[0007] Fixed swing pages;

[0008] The movable swing leaf is rotatably connected to the fixed swing leaf;

[0009] A rotating sleeve, fixedly connected to the movable swing leaf;

[0010] A cam, fixedly connected to the fixed swing leaf;

[0011] A hydraulic cylinder, fixedly connected to the cam;

[0012] A first positioning pin is fixedly connected to the driving end of the hydraulic cylinder;

[0013] A slide groove is provided on the cam;

[0014] The first positioning pin matches the sliding groove on the cam.

[0015] Preferably, a spring sleeve is fixedly connected in the fixed swing leaf, a compression spring is fixedly connected in the spring sleeve, a second positioning pin is fixedly connected to the compression spring, and the second positioning pin matches the slide groove on the cam.

[0016] Furthermore, a limiting groove is provided on the rotating sleeve, and the first positioning pin and the second positioning pin are both slidably connected in the limiting groove.

[0017] Preferably, a first connecting sleeve is fixedly connected to the fixed swing leaf, two groups of the first connecting sleeves are symmetrically arranged, and a decorative cover is fixedly connected to the first connecting sleeve.

[0018] Furthermore, a second connecting sleeve is fixedly connected to the movable swing leaf, a bearing is symmetrically connected to the second connecting sleeve, and the bearing is rotatably connected to the first connecting sleeve.

[0019] Furthermore, a first sliding rod is fixedly connected to the first positioning pin, the first sliding rod is slidably connected to the limiting groove, and the first sliding rod matches the sliding groove.

[0020] Furthermore, a second sliding rod is fixedly connected to the second positioning pin, the second sliding rod is slidably connected to the limiting groove, and the second sliding rod matches the sliding groove.

[0021] Furthermore, a first track groove is formed in the first connecting sleeve, a first limiting surface is formed on the side wall of the cam, and a second limiting surface is formed on the side wall of the spring sleeve, and both the first limiting surface and the second limiting surface match the first track groove.

[0022] Furthermore, a second track groove is formed in the second connecting sleeve, and a third limit surface is formed on the side wall of the rotating sleeve, and the third limit surface matches the second track groove.

[0023] Furthermore, an internal thread groove is formed on the spring sleeve, and an external thread groove is formed on the cam, and the thread of the internal thread groove matches the thread of the external thread groove.

[0024] Compared with the prior art, the present invention provides a dual-axis buffer hinge, which has the following beneficial effects:

[0025] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention can effectively buffer the force when closing the door by utilizing the hydraulic cylinder in the device, thereby driving the movable swing leaf to rotate slowly, and then driving the hinge to close slowly as a whole, thereby reducing the problem of excessive force when closing the door and the noise that is easy to occur, and at the same time improving the safety of the hinge when closing;

[0026] By using the hydraulic cylinder and the compression spring provided in the device in cooperation, the first positioning pin and the second positioning pin can be moved synchronously on the cam, thereby effectively increasing the stroke of the hydraulic cylinder, thereby further improving the buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a double-axis buffer hinge proposed by the present invention;

[0028] Figure 2 A schematic diagram of the connection structure of a cam, a rotating sleeve and a spring sleeve in a double-axis buffer hinge proposed by the present invention

[0029] Figure 3 A cross-sectional view of a double-axis buffer hinge proposed by the present invention;

[0030] Figure 4 The invention provides a double-axis buffer hinge explosion Figure 1 ;

[0031] Figure 5 The invention provides a double-axis buffer hinge explosion Figure 2 ;

[0032] Figure 6 A double-axis buffer hinge proposed by the present invention Figure 5 A magnified view of part A in FIG.

[0033] Figure 7 The present invention provides a schematic structural diagram of a fixed swing leaf and a movable swing leaf in a double-axis buffer hinge.

[0034] In the figure: 1. Fixed swing leaf; 101. First connecting sleeve; 1011. First track groove; 102. Decorative cover; 2. Movable swing leaf; 201. Second connecting sleeve; 2011. Second track groove; 3. Hydraulic cylinder; 301. First positioning pin; 3011. First slide bar; 4. Compression spring; 401. Second positioning pin; 4011. Second slide bar; 5. Tail plug; 6. Rotating sleeve; 601. Limiting groove; 602. Third limiting surface; 7. Cam; 701. Second limiting surface; 702. Sliding groove; 703. External thread groove; 8. Spring sleeve; 801. First limiting surface; 802. Internal thread groove; 9. Bearing. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Example:

[0037] Reference Figure 1-Figure 7 , a double-axis buffer hinge, comprising:

[0038] Fixed swing page 1;

[0039] The movable swing leaf 2 is rotatably connected to the fixed swing leaf 1;

[0040] The rotating sleeve 6 is fixedly connected to the movable swing leaf 2;

[0041] The cam 7 is fixedly connected to the fixed swing leaf 1;

[0042] The hydraulic cylinder 3 is fixedly connected to the cam 7;

[0043] The first positioning pin 301 is fixedly connected to the driving end of the hydraulic cylinder 3;

[0044] The slide groove 702 is provided on the cam 7;

[0045] The first positioning pin 301 matches with the sliding groove 702 on the cam 7 .

[0046] A spring sleeve 8 is fixedly connected to the fixed swing leaf 1 , a compression spring 4 is fixedly connected to the spring sleeve 8 , a second positioning pin 401 is fixedly connected to the compression spring 4 , and the second positioning pin 401 matches the slide groove 702 on the cam 7 .

[0047] The rotating sleeve 6 is provided with a limiting groove 601 , and the first positioning pin 301 and the second positioning pin 401 are both slidably connected in the limiting groove 601 .

[0048] The first positioning pin 301 is fixedly connected with a first sliding rod 3011 . The first sliding rod 3011 is slidably connected in the limiting groove 601 , and the first sliding rod 3011 matches with the sliding groove 702 .

[0049] The second positioning pin 401 is fixedly connected with a second sliding rod 4011 . The second sliding rod 4011 is slidably connected in the limiting groove 601 , and the second sliding rod 4011 matches with the sliding groove 702 .

[0050] A first track groove 1011 is defined in the first connecting sleeve 101 , a first limiting surface 701 is defined on the side wall of the cam 7 , and a second limiting surface 801 is defined on the side wall of the spring sleeve 8 . Both the first limiting surface 701 and the second limiting surface 801 match the first track groove 1011 .

[0051] Reference Figure 2 , Figure 7 By matching the first limiting surface 701 and the second limiting surface 801 on the cam 7 and the spring sleeve 8 with the first track groove 1011 in the first connecting sleeve 101, the problem of slipping and idling between the cam 7 and the spring sleeve 8 and the first connecting sleeve 101 when the hinge is opened and closed can be reduced, thereby improving the overall opening and closing stability of the hinge.

[0052] The spring sleeve 8 is provided with an internal thread groove 802 , and the cam 7 is provided with an external thread groove 703 . The threads of the internal thread groove 802 match the threads of the external thread groove 703 .

[0053] A second track groove 2011 is defined in the second connecting sleeve 201 , and a third limiting surface 602 is defined on the side wall of the rotating sleeve 6 . The third limiting surface 602 matches the second track groove 2011 .

[0054] Reference Figure 3 By engaging the third limiting surface 602 on the rotating sleeve 6 with the second track groove 2011 in the second connecting sleeve 201, after installation, the problem of slipping and idling between the rotating sleeve 6 and the second connecting sleeve 201 when the buffer hinge is opened and closed can be reduced, thereby further improving the overall opening and closing stability of the hinge.

[0055] Reference Figure 2 , Figure 3 When the buffer hinge is opened, the staff rotates the movable swing leaf 2, the movable swing leaf 2 will drive the second connecting sleeve 201 to rotate, the second connecting sleeve 201 will drive the rotating sleeve 6 to rotate, the rotation of the rotating sleeve 6 will drive the first positioning pin 301 and the second positioning pin 401 to rotate synchronously, at this time, the first positioning pin 301 and the second positioning pin 401 will slide upward in the limiting slide groove 702 on the cam 7, and the driving end of the hydraulic cylinder 3 will extend synchronously;

[0056] Reference Figure 2 , Figure 3 When the buffer hinge is closed, the staff rotates the movable swing leaf 2 in the reverse direction, and the movable swing leaf 2 will drive the second connecting sleeve 201 to rotate in the reverse direction, and the second connecting sleeve 201 will drive the rotating sleeve 6 to rotate synchronously. At this time, the first positioning pin 301 and the second positioning pin 401 will slide downward synchronously in the limiting slide groove 702 of the cam 7. At this time, the hydraulic cylinder 3 can play a buffering effect, thereby achieving the effect of slow closing of the hinge.

[0057] By utilizing the hydraulic cylinder 3 in the device, the force applied when closing the door can be effectively buffered, thereby driving the movable swing leaf 2 to rotate slowly, thereby driving the hinge as a whole to close slowly, reducing the problem of excessive force when closing the door and the occurrence of noise, while also improving the safety of the hinge when closing.

[0058] It should be noted that, by using the hydraulic cylinder 3 and the compression spring 4 provided in the device in combination, the first positioning pin 301 and the second positioning pin 401 can be moved synchronously on the cam 7, thereby effectively increasing the stroke of the hydraulic cylinder 3 and further improving the buffering effect.

[0059] Reference Figure 1 It should be further explained that the buffer hinge can be opened 175 degrees horizontally and can stop at any time between 90 degrees and 175 degrees, and can be closed with buffering at 85 degrees to 0 degrees.

[0060] A first connecting sleeve 101 is fixedly connected to the fixed swing leaf 1 , and two groups of first connecting sleeves 101 are symmetrically arranged. A decorative cover 102 is fixedly connected to the first connecting sleeve 101 .

[0061] The first connecting sleeve 101 is fixedly connected with a tail plug 5 . The tail plug 5 in the upper first connecting sleeve 101 is fixedly connected to the compression spring 4 . The tail plug 5 in the lower first connecting sleeve 101 is fixedly connected to the hydraulic cylinder 3 .

[0062] The movable swing leaf 2 is fixedly connected with a second connecting sleeve 201 , the second connecting sleeve 201 is symmetrically connected with a bearing 9 , and the bearing 9 is rotatably connected with the first connecting sleeve 101 .

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-axis buffer hinge, characterized in that: include: Fixed swing leaf (1); A movable swing leaf (2) is rotatably connected to the fixed swing leaf (1); A rotating sleeve (6) is fixedly connected to the movable swing leaf (2); A cam (7) is fixedly connected to the fixed swing leaf (1); A hydraulic cylinder (3) is fixedly connected to the cam (7); A first positioning pin (301) is fixedly connected to a driving end of the hydraulic cylinder (3); A slide groove (702) is provided on the cam (7); The first positioning pin (301) matches the sliding groove (702) on the cam (7).

2. A double-axis buffer hinge according to claim 1, characterized in that: A spring sleeve (8) is fixedly connected to the fixed swing leaf (1), a compression spring (4) is fixedly connected to the spring sleeve (8), a second positioning pin (401) is fixedly connected to the compression spring (4), and the second positioning pin (401) matches the slide groove (702) on the cam (7).

3. A double-axis buffer hinge according to claim 2, characterized in that: The rotating sleeve (6) is provided with a limiting groove (601), and the first positioning pin (301) and the second positioning pin (401) are both slidably connected in the limiting groove (601).

4. A double-axis buffer hinge according to claim 1, characterized in that: A first connecting sleeve (101) is fixedly connected to the fixed swing leaf (1), two groups of the first connecting sleeves (101) are symmetrically arranged, and a decorative cover (102) is fixedly connected to the first connecting sleeve (101).

5. A double-axis buffer hinge according to claim 4, characterized in that: A second connecting sleeve (201) is fixedly connected to the movable swing leaf (2), a bearing (9) is symmetrically connected to the second connecting sleeve (201), and the bearing (9) is rotatably connected to the first connecting sleeve (101).

6. A double-axis buffer hinge according to claim 2, characterized in that: A first sliding rod (3011) is fixedly connected to the first positioning pin (301), the first sliding rod (3011) is slidably connected in the limiting groove (601), and the first sliding rod (3011) matches the sliding groove (702).

7. A double-axis buffer hinge according to claim 6, characterized in that The second positioning pin (401) is fixedly connected to a second slide bar (4011), the second slide bar (4011) is slidably connected in the limiting groove (601), and the second slide bar (4011) matches the slide groove (702).

8. The double-axis buffer hinge according to claim 4, characterized in that: A first track groove (1011) is provided in the first connecting sleeve (101), a first limiting surface (701) is provided on the side wall of the cam (7), and a second limiting surface (801) is provided on the side wall of the spring sleeve (8), and both the first limiting surface (701) and the second limiting surface (801) match the first track groove (1011).

9. The double-axis buffer hinge according to claim 5, characterized in that: A second track groove (2011) is provided in the second connecting sleeve (201), and a third limiting surface (602) is provided on the side wall of the rotating sleeve (6), wherein the third limiting surface (602) matches the second track groove (2011).

10. A double-axis buffer hinge according to claim 2, characterized in that: The spring sleeve (8) is provided with an internal thread groove (802), and the cam (7) is provided with an external thread groove (703), and the thread of the internal thread groove (802) matches the thread of the external thread groove (703).

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