Front-back door opening hinge structure

Abstract

The utility model provides a forward and reverse door opening hinge structure which comprises a first hinge piece, a second hinge piece, a connecting piece, a first elastic piece and a second elastic piece, and the connecting piece is of an S-shaped structure and is provided with a first connecting end and a second connecting end which are bent oppositely; the first hinge piece is arranged on one side of the connecting piece, and the end part, close to the first connecting end, of the first hinge piece is pivoted with the first connecting end; the second hinge piece is arranged on the other side of the connecting piece, and the end part, close to the second connecting end, of the second hinge piece is pivoted with the second connecting end; the first elastic piece is connected between the first hinge piece and the connecting piece in an abutting mode, and the first elastic piece has first elastic force used for driving the connecting piece and the second hinge piece to be rotationally closed on the first hinge piece. The second elastic piece is connected between the second hinge piece and the connecting piece in an abutting mode, and the second elastic piece has second elastic force used for driving the second hinge piece to be rotationally closed on the connecting piece. The forward and backward opening door hinge structure can be used for outward opening and inward opening of the door and enables the door to return automatically.

Description

Technical Field

[0001] The utility model relates to the technical field of door opening and closing, in particular to a hinge structure for a door opening in both directions. Background Art

[0002] In existing houses, the doors installed usually have an opening and closing angle of about 90 degrees, so the doors can only be opened in one direction (usually inward, not outward), which makes it inconvenient to open the door and for people to enter and exit. In particular, for people on the side where the door is open, they need to keep a distance from the door to avoid the door when it is opened to ensure the effective opening of the door. In addition, when people enter and exit, they need to open the door and wait for the person to go out or come in before closing the door; if there is only one person and he is holding items in his hands, it will be very troublesome and he needs to put the items down before opening the door; and for people with abnormal hands, they need the help of others to open and close the door before they can enter and exit.

[0003] Therefore, it is necessary to provide a door hinge structure that can be opened both outwardly and inwardly and can automatically return the door. Utility Model Content

[0004] The utility model aims to provide a hinge structure for a door which can be opened outwards and inwards and can automatically return the door.

[0005] To achieve the above-mentioned purpose, the utility model provides a hinge structure for a front and back door, comprising a first hinge member, a second hinge member, a connecting member, a first elastic member and a second elastic member, wherein the connecting member is in an "S"-shaped structure and has a first connecting end and a second connecting end that are relatively bent; the first hinge member is arranged on one side of the connecting member, and an end of the first hinge member adjacent to the first connecting end is pivotally connected to the first connecting end, and a side of the first hinge member facing away from the connecting member is used to be fixed on a door mounting position; the second hinge member is arranged on the other side of the connecting member, and an end of the second hinge member adjacent to the second connecting end is pivotally connected to the second connecting end, and a side of the second hinge member facing away from the connecting member is used to be connected to a switch door; the first elastic member abuts between the first hinge member and the connecting member, and the first elastic member has a first elastic force for driving the connecting member together with the second hinge member to rotate and close on the first hinge member; the second elastic member abuts between the second hinge member and the connecting member, and the second elastic member has a second elastic force for driving the second hinge member to rotate and close on the connecting member.

[0006] Preferably, the first hinge member is provided with a first connection hole for connecting to the door installation position, and the second hinge member is provided with a second connection hole for connecting to the switch door.

[0007] Preferably, the forward and reverse door hinge structure also includes a first latch, a first hinge sleeve is provided at the end of the first hinge member adjacent to the first connecting end, a first connecting sleeve is provided on the first connecting end, and the first hinge sleeve and the first connecting sleeve are respectively rotatably mounted on the first latch.

[0008] Preferably, a plurality of the first hinge sleeves are arranged at intervals along the same straight line direction on the end of the first hinge member adjacent to the first connecting end; a plurality of the first connecting sleeves are arranged at intervals along the same straight line direction on the first connecting end; and the first hinge sleeves and the first connecting sleeves are alternately sleeved on the first pin.

[0009] Preferably, the first elastic member is sleeved on the first latch, one end of the first elastic member abuts against a side of the first hinge member facing away from the connecting member, and the other end of the first elastic member abuts against a side of the connecting member facing away from the first hinge member.

[0010] Preferably, a first hinge groove is provided on the side of the first hinge member facing away from the connecting member, and one end of the first elastic member abuts against the bottom surface of the first hinge groove; a first connecting groove is provided on the side of the connecting member facing away from the first hinge member, and the other end of the first elastic member abuts against the bottom surface of the first connecting groove.

[0011] Preferably, the forward and reverse door hinge structure also includes a second latch, a second hinge sleeve is provided at the end of the second hinge member adjacent to the second connecting end, a second connecting end is provided with a second connecting sleeve, and the second hinge sleeve and the second connecting sleeve are respectively rotatably mounted on the second latch.

[0012] Preferably, a plurality of the second hinge sleeves are arranged at intervals along the same straight line direction on the end of the second hinge member adjacent to the second connecting end; a plurality of the second connecting sleeves are arranged at intervals along the same straight line direction on the second connecting end; and the second hinge sleeves and the second connecting sleeves are alternately sleeved on the second pin.

[0013] Preferably, the second elastic member is sleeved on the second latch, one end of the second elastic member abuts against a side of the second hinge member facing away from the connecting member, and the other end of the second elastic member abuts against a side of the connecting member facing away from the second hinge member.

[0014] Preferably, a second hinge groove is provided on the side of the second hinge member facing away from the connecting member, and one end of the second elastic member abuts against the bottom surface of the second hinge groove; a second connecting groove is provided on the side of the connecting member facing away from the second hinge member, and the other end of the second elastic member abuts against the bottom surface of the second connecting groove.

[0015] Compared with the prior art, the front and back opening hinge structure of the present utility model adds a connecting member with an "S" shape between the first hinge member and the second hinge member, pivotally connects the end of the first hinge member near the first connection end to the first connection end of the connecting member, and pivotally connects the end of the second hinge member near the second connection end to the second connection end of the connecting member. The first elastic force of the first elastic member is used to drive the connecting member and the second hinge member to rotate and close on the first hinge member, and the second elastic force of the second elastic member is used to drive the second hinge member to rotate and close on the connecting member. Since the side of the first hinge member facing away from the connecting member is used to be fixed to the door installation position, and the side of the second hinge member facing away from the connecting member is used to be connected to the door for opening and closing, therefore, no matter whether the user opens the door for opening or closing inward or outward, the door for opening and closing can be opened by the second hinge member rotating relative to the connecting member or by the connecting member and the second hinge member rotating relative to the first hinge member. The angle between the inward opening and the outward opening of the door for opening and closing can reach 180 degrees, and under the action of the first elastic force of the first elastic member or the second elastic force of the second elastic member, the door for opening and closing can automatically rotate back to the initial position. Therefore, the front and back opening hinge structure of the present utility model can be used for the door to open outward and inward and can make the door automatically return to its position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural diagram of the front and back opening hinge structure of the present utility model installed on the door for opening and closing.

[0017] Figure 2 is a three-dimensional structural diagram of the front and back opening hinge structure of the present utility model.

[0018] Figure 3 is a three-dimensional structural diagram of the front and back opening hinge structure of the present utility model from another angle.

[0019] Figure 4 is an exploded view of the front and back opening hinge structure of the present utility model.

[0020] Figure 5 is a three-dimensional structural diagram of the connecting member of the front and back opening hinge structure of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to describe in detail the technical content and structural features of the present utility model, the following further description is made in conjunction with the embodiments and with reference to the accompanying drawings.

[0022] Please refer to Figures 1 to 3, the front and back opening hinge structure 100 of the present utility model includes a first hinge member 1, a second hinge member 2, a connecting member 3, a first elastic member 4 and a second elastic member 5. The connecting member 3 has an "S" - shaped structure and has a first connecting end 31 and a second connecting end 32 that are relatively bent; the first hinge member 1 is arranged on one side of the connecting member 3, and the end of the first hinge member 1 adjacent to the first connecting end 31 is pivotally connected to the first connecting end 31. The side of the first hinge member 1 facing away from the connecting member 3 is used to be fixed on the door installation position; the second hinge member 2 is arranged on the other side of the connecting member 3, and the end of the second hinge member 2 adjacent to the second connecting end 32 is pivotally connected to the second connecting end 32. The side of the second hinge member 2 facing away from the connecting member 3 is used to be connected to the switch door 200; the first elastic member 4 abuts between the first hinge member 1 and the connecting member 3, and the first elastic member 4 has a first elastic force for driving the connecting member 3 together with the second hinge member 2 to rotate and close on the first hinge member 1; the second elastic member 5 abuts between the second hinge member 2 and the connecting member 3, and the second elastic member 5 has a second elastic force for driving the second hinge member 2 to rotate and close on the connecting member 3.

[0023] When the switch door 200 is opened inwards or outwards, the switch door 200 can be opened by rotating the second hinge member 2 relative to the connecting member 3 or by rotating the connecting member 3 together with the second hinge member 2 relative to the first hinge member 1. The angle between in - ward opening and out - ward opening can reach 180 degrees, and under the action of the first elastic force of the first elastic member 4 or the second elastic force of the second elastic member 5, the switch door 200 can automatically rotate back to the initial position.

[0024] Please refer to Figures 2 to 4 , in this embodiment, the first connecting end 31 and the second connecting end 32 are symmetrically distributed about the center.

[0025] Please refer to Figure 2 and Figure 3 , in this embodiment, the first hinge member 1 is provided with a first connection hole 11 for connecting to the door installation position, and the second hinge member 2 is provided with a second connection hole 21 for connecting to the switch door 200. Bolts can be passed through the first connection hole 11 to lock the first hinge member 1 to the door installation position; bolts can be passed through the second connection hole 21 to lock the second hinge member 2 to the switch door 200, thereby fixing the front and back opening hinge structure 100 of the present utility model between the door installation position and the switch door 200. Among them, the door installation position can be an existing door frame structure, but not limited thereto.

[0026] Please refer to Figure 2 and Figure 4In this embodiment, the front and back door hinge structure 100 of the utility model further includes a first latch 6, a first hinge sleeve 12 is provided at the end of the first hinge member 1 adjacent to the first connection end 31, a first connecting sleeve 33 is provided on the first connection end 31, and the first hinge sleeve 12 and the first connecting sleeve 33 are respectively rotatably sleeved on the first latch 6. Specifically, a plurality of first hinge sleeves 12 are arranged at intervals along the same straight line direction on the end of the first hinge member 1 adjacent to the first connection end 31; a plurality of first connecting sleeves 33 are arranged at intervals along the same straight line direction on the first connection end 31; and the first hinge sleeves 12 and the first connecting sleeves 33 are sleeved on the first latch 6 alternately.

[0027] See also Figure 2 and Figure 4 In this embodiment, the first elastic member 4 is sleeved on the first latch 6, one end of the first elastic member 4 abuts against the side of the first hinge member 1 facing away from the connecting member 3, and the other end of the first elastic member 4 abuts against the side of the connecting member 3 facing away from the first hinge member 1. Further, a first hinge groove 13 is provided on the side of the first hinge member 1 facing away from the connecting member 3, and one end of the first elastic member 4 abuts against the bottom surface of the first hinge groove 13; a first connecting groove 34 is provided on the side of the connecting member 3 facing away from the first hinge member 1, and the other end of the first elastic member 4 abuts against the bottom surface of the first connecting groove 34.

[0028] See also Figures 3 to 5 In this embodiment, the front and back door hinge structure 100 of the utility model further includes a second latch 7, a second hinge sleeve 22 is provided at the end of the second hinge member 2 adjacent to the second connection end 32, a second connection sleeve 35 is provided on the second connection end 32, and the second hinge sleeve 22 and the second connection sleeve 35 are respectively rotatably sleeved on the second latch 7. Specifically, a plurality of second hinge sleeves 22 are arranged at intervals along the same straight line direction on the end of the second hinge member 2 adjacent to the second connection end 32; a plurality of second connection sleeves 35 are arranged at intervals along the same straight line direction on the second connection end 32; and the second hinge sleeve 22 and the second connection sleeve 35 are sleeved on the second latch 7 alternately.

[0029] See also Figures 3 to 5 In this embodiment, the second elastic member 5 is sleeved on the second latch 7, one end of the second elastic member 5 abuts against the side of the second hinge member 2 facing away from the connecting member 3, and the other end of the second elastic member 5 abuts against the side of the connecting member 3 facing away from the second hinge member 2. Further, a second hinge groove 23 is provided on the side of the second hinge member 2 facing away from the connecting member 3, and one end of the second elastic member 5 abuts against the bottom surface of the second hinge groove 23; a second connecting groove 36 is provided on the side of the connecting member 3 facing away from the second hinge member 2, and the other end of the second elastic member 5 abuts against the bottom surface of the second connecting groove 36.

[0030] In summary, the front and back door hinge structure 100 of the present invention adds an "S"-shaped connecting member 3 between the first hinge member 1 and the second hinge member 2, pivots the end of the first hinge member 1 adjacent to the first connecting end 31 to the first connecting end 31 of the connecting member 3, pivots the end of the second hinge member 2 adjacent to the second connecting end 32 to the second connecting end 32 of the connecting member 3, and utilizes the first elastic force of the first elastic member 4 to drive the connecting member 3 together with the second hinge member 2 to rotate and close on the first hinge member 1, and utilizes the second elastic force of the second elastic member 5 to drive the second hinge member 2 to rotate and close on the connecting member 3. The side of a hinge member 1 facing away from the connecting member 3 is used to be fixed on the door mounting position, and the side of a second hinge member 2 facing away from the connecting member 3 is used to be connected to the switch door 200. Therefore, no matter whether the switch door 200 is opened inward or outward, the switch door 200 can be opened by rotating the second hinge member 2 relative to the connecting member 3 or by rotating the connecting member 3 together with the second hinge member 2 relative to the first hinge member 1. The angle between the inward and outward opening of the switch door 200 can reach 180 degrees, and under the action of the first elastic force of the first elastic member 4 or the second elastic force of the second elastic member 5, the switch door 200 can automatically return to the initial position. Therefore, the positive and negative opening door hinge structure 100 of the present invention can allow the door to be opened outwards and inwards and can make the door automatically return to its original position, allowing people to enter and exit conveniently and achieving efficient entry and exit, solving the problems of the existing single-direction door opening method. In addition, the positive and negative opening door hinge structure 100 of the present invention has the characteristics of low cost, does not require the use of special materials and structures, and does not require subsequent maintenance costs. While improving the efficiency of personnel passage, the purpose of saving costs can be achieved.

[0031] The above disclosure is only a preferred example of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A hinge structure for a door that can be opened in both directions, characterized in that: The door comprises a first hinge member, a second hinge member, a connecting member, a first elastic member and a second elastic member, wherein the connecting member is in an "S"-shaped structure and has a first connecting end and a second connecting end that are relatively bent; the first hinge member is arranged on one side of the connecting member, an end of the first hinge member adjacent to the first connecting end is pivotally connected to the first connecting end, and a side of the first hinge member away from the connecting member is used to be fixed on a door mounting position; the second hinge member is arranged on the other side of the connecting member, an end of the second hinge member adjacent to the second connecting end is pivotally connected to the second connecting end, and a side of the second hinge member away from the connecting member is used to be connected to a switch door; the first elastic member abuts between the first hinge member and the connecting member, and the first elastic member has a first elastic force for driving the connecting member together with the second hinge member to rotate and close on the first hinge member; the second elastic member abuts between the second hinge member and the connecting member, and the second elastic member has a second elastic force for driving the second hinge member to rotate and close on the connecting member.

2. The hinge structure for opening a door in both directions according to claim 1, characterized in that: The first hinge member is provided with a first connection hole for connecting to the door installation position, and the second hinge member is provided with a second connection hole for connecting to the switch door.

3. The hinge structure for opening a door in both directions according to claim 1, characterized in that: It also includes a first latch, a first hinge sleeve is provided at the end of the first hinge member adjacent to the first connecting end, a first connecting sleeve is provided on the first connecting end, and the first hinge sleeve and the first connecting sleeve are rotatably sleeved on the first latch respectively.

4. The hinge structure for opening a door in both directions according to claim 3, characterized in that: A plurality of the first hinge sleeves are arranged at intervals along the same straight line direction on the end of the first hinge member adjacent to the first connecting end; a plurality of the first connecting sleeves are arranged at intervals along the same straight line direction on the first connecting end; the first hinge sleeves and the first connecting sleeves are alternately sleeved on the first pin.

5. The hinge structure for opening a door in both directions according to claim 3, characterized in that: The first elastic member is sleeved on the first latch, one end of the first elastic member abuts against a side of the first hinge member facing away from the connecting member, and the other end of the first elastic member abuts against a side of the connecting member facing away from the first hinge member.

6. The hinge structure for opening a door in both directions according to claim 5, characterized in that: A first hinge groove is provided on the side of the first hinge member facing away from the connecting member, and one end of the first elastic member abuts against the bottom surface of the first hinge groove; a first connecting groove is provided on the side of the connecting member facing away from the first hinge member, and the other end of the first elastic member abuts against the bottom surface of the first connecting groove.

7. The hinge structure for opening a door in both directions according to claim 1, characterized in that: It also includes a second latch, a second hinge sleeve is provided at the end of the second hinge member adjacent to the second connecting end, a second connecting sleeve is provided on the second connecting end, and the second hinge sleeve and the second connecting sleeve are rotatably sleeved on the second latch respectively.

8. The hinge structure for opening a door in both directions according to claim 7, characterized in that: A plurality of the second hinge sleeves are arranged at intervals along the same straight line direction on the end of the second hinge member adjacent to the second connecting end; a plurality of the second connecting sleeves are arranged at intervals along the same straight line direction on the second connecting end; the second hinge sleeves and the second connecting sleeves are alternately sleeved on the second pin.

9. The hinge structure for opening a door in both directions according to claim 7, characterized in that: The second elastic member is sleeved on the second latch, one end of the second elastic member abuts against a side of the second hinge member facing away from the connecting member, and the other end of the second elastic member abuts against a side of the connecting member facing away from the second hinge member.

10. The hinge structure for opening a door in both directions according to claim 9, characterized in that: A second hinge groove is provided on the side of the second hinge member facing away from the connecting member, and one end of the second elastic member abuts against the bottom surface of the second hinge groove; a second connecting groove is provided on the side of the connecting member facing away from the second hinge member, and the other end of the second elastic member abuts against the bottom surface of the second connecting groove.

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