Opening and closing mechanism with any fixed angle

Abstract

The utility model discloses an opening and closing mechanism with any fixed angle. The opening and closing mechanism is characterized by comprising a fixed part, a guide assembly, a transmission assembly and a limiting assembly, the fixing piece is a hinge fixing end; the guide assembly is a guide rail; the transmission assembly is a hinge mechanism; the limiting assembly is located on one side of the guide assembly and used for limiting the movement distance of the guide rail, and therefore opening and closing at any fixed angle are completed. And the limiting assembly comprises a buffer, so that the impact force caused when the hinge moves to a fixed position can be reduced. According to the hinge, movement at a specific angle can be met, and impact force caused when the hinge moves to a fixed position can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of tooling fixtures, in particular to an opening and closing mechanism with an arbitrary fixed angle. Background Art

[0002] At present, there are not many structures at home and abroad that can complete arbitrary fixed angles. Their main structures are hinges, which cannot meet the needs of fixing a single angle. Additional fixed modifications are required to the opening and closing equipment, and the hinges are not equipped with deceleration buffer devices.

[0003] In the prior art, the structure capable of opening and closing at a fixed angle has certain technical defects, which can only meet the requirements of opening and closing at a single angle, but cannot meet the requirements of stopping at any angle, and the load it can withstand is relatively low. Therefore, in the prior art, further improvements are needed for the structure capable of opening and closing at any fixed angle. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present invention provides an opening and closing mechanism with an arbitrary fixed angle, which can not only meet the requirements of opening and closing at a fixed angle, but also reduce the impact force when reaching the limit stroke.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An opening and closing mechanism with an arbitrary fixed angle is characterized by comprising a hinge, a guide rail, a hinge mechanism, a buffer, a limit bolt, and a retaining frame and a limit frame;

[0007] The hinge is fixed on two different planes, with the fixed side being on the same plane as the guide rail mounting surface; the other side of the hinge is a movable surface arranged on the motion surface that needs to be opened and closed, and a fixing bracket of the connecting rod is provided on the motion end of the hinge.

[0008] The hinge movable end and the fixed end have the same axis. A C-shaped retaining spring is provided on the axis away from the hinge fixed surface and outside the hinge movable end to limit the axial displacement of the hinge.

[0009] A protective strip is provided above the guide rail to protect the ball retainer from losing performance due to the mounting holes for bolt rivets when the ball retainer moves within the guide rail travel;

[0010] The ball cage is used to increase the reliability of the guide rail movement;

[0011] The hinge mechanism is provided with two fixed brackets, one of which is provided at the hinge movement end, and the other is provided above the slider of the guide rail. The connecting rod is connected to the two fixed brackets to convert the curved motion of the hinge into the linear motion of the guide rail.

[0012] The limit bolt is installed on the side of the guide rail to limit the movement distance of the guide rail, thereby completing the opening and closing of any fixed angle.

[0013] The buffer is installed perpendicular to the limit bolt and is used to reduce the instantaneous impact force caused when the hinge moves to the limit position;

[0014] The cage limiter is distributed on both sides of the front and rear travel of the guide rail and is used to limit the position of the ball cage so that the ball cage always moves within the effective travel of the guide rail.

[0015] The advantages of the present invention are as follows: the hinge is driven during the rotation of the movable surface, and the rotation of the hinge drives the guide rail to move axially through the hinge fixing bracket and the hinge mechanism at the movable end of the hinge. When approaching the limit position, it slowly stops under the dual action of the buffer and the limit bolt, thereby achieving the purpose of buffering and limiting; when the guide rail moves to the limit position, the hinge is driven to rotate to the specified angle through the action of the hinge mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an axonometric diagram of an opening and closing mechanism with an arbitrary fixed angle provided by this embodiment;

[0017] Figure 2 This is an axonometric diagram of an opening and closing mechanism with an arbitrary fixed angle provided by this embodiment;

[0018] Figure 3 A schematic diagram of a closed state of an opening and closing mechanism of an arbitrary fixed angle provided by this embodiment;

[0019] Figure 4 This is a schematic diagram of the open state of an opening and closing mechanism with an arbitrary fixed angle provided by this embodiment. DETAILED DESCRIPTION

[0020] Combine Figures 1 to 4 The utility model is further described with respect to an opening and closing mechanism with an arbitrary fixed angle.

[0021] A hinge mechanism for opening and closing at any fixed angle is characterized by comprising a hinge 1, a guide rail 2, a hinge mechanism 3, a buffer 4, a limit bolt 5, a retaining frame limit frame 6, a limit bracket 7, a hinge movable side 11, a hinge fixed side 12, a C-shaped retaining spring 13, a center axis 14, a slider 21, a ball retainer 22, a protective strip plate 23, a fixed rod base 24, a movable hard stop 25, a slider side fixed bracket 31, a connecting rod 32, and a nut 51 for the limit bolt.

[0022] The hinge movable side 11 and the hinge fixed side 12 of the hinge 1 are located on the same central axis 14. A C-shaped retaining spring 13 is provided on the outer periphery of the hinge movable end 11 and away from the hinge fixed surface to limit the axial displacement of the hinge.

[0023] A protective strip plate 23 is provided above the guide rail 2 to protect the ball retainer 22 from losing performance due to the bolt-riveted mounting holes when the ball retainer 22 moves within the travel of the guide rail 2; the ball retainer 22 moves together with the slider 21 when it slides on the guide rail 2.

[0024] A fixing bracket for the hinge mechanism 3 is provided on the hinge movable side 11;

[0025] The slider side fixing bracket 31 is installed on the fixing rod base 24, and the fixing rod base 24 is fixed to the slider 21 through a threaded connection. The two sides of the connecting rod 32 are connected to the slider side fixing bracket 31 and the fixing bracket of the hinge movable side 11.

[0026] The limiting bolt 5 is fixed to the limiting bracket 7 by bolt riveting, and the limiting bolt is fixed to the limiting bolt 5 by a nut 51 to prevent the limiting bolt 5 from axial sliding;

[0027] The buffer 4 is fixed to the limiting bracket 7 through a threaded connection;

[0028] The movable hard stop 25 is connected to the fixed rod base 24. When the slider 21 slides on the guide rail 2, it drives the movable hard stop 25 to move axially. When it reaches the trigger stroke of the buffer 4, it slows down and stops when it touches the limit bolt 5 after reaching the limit stroke.

[0029] The mounting surface of the retainer limit frame 6 and the mounting surface of the guide rail 2 are in the same plane; there is a gap between the retainer limit frame 6 and the guide rail 2 to prevent the ball retainer from leaving the guide rail 2 when moving;

[0030] When the operator opens a cover somewhere and drives the hinge 1 to move, the hinge's movable side 11 rotates through the hinge mechanism 3 to drive the slider 21 to move axially on the guide rail 2 until it approaches the limit stroke. The slider 21 first contacts the buffer 4 with the movable hard stop 25 through the fixed rod base 24, and then gradually decelerates under the action of the buffer 4 until it touches the limit bolt 5 and stops. At this time, the opening action is completed and the set angle is reached.

[0031] Unless otherwise specified, in this utility model, if there are terms such as "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationships in this utility model are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, they can understand the specific meanings of the above terms in conjunction with the accompanying drawings and according to specific circumstances.

[0032] Unless otherwise specified or limited, the terms "disposed," "connected," and "connected" in this utility model should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0033] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An opening and closing mechanism with an arbitrary fixed angle, characterized by: Including hinges, guide rails, hinge mechanisms, buffers, limit bolts, and retaining and limiting frames; The hinge is fixed on two different planes, the fixed side is in the same plane as the guide rail mounting surface, the movable side is the movable surface and the hinge movable surface has a fixed bracket of the hinge mechanism; A protective strip is provided above the guide rail to protect the ball cage so that the ball cage does not lose performance due to the mounting holes caused by the bolt riveting when moving within the guide rail travel; The ball cage is used to increase the reliability of the guide rail movement; The hinge mechanism is provided with two fixed brackets, one of which is provided on the hinge moving surface, and the other is provided above the slider of the guide rail, and the connecting rod is connected to the two fixed brackets; The limit bolt is installed on the side of the guide rail to limit the movement distance of the guide rail, thereby completing the opening and closing of any fixed angle; The buffer is installed perpendicular to the limit bolt, and the buffer can reduce the instantaneous impact force caused when the hinge moves to the limit position; The cage limiter is distributed on both sides of the front and rear travel of the guide rail and is used to limit the position of the ball cage so that the ball cage always moves within the effective travel of the guide rail.

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