Hinge structure

Abstract

The application discloses a hinge structure and belongs to the technical field of door hinges. The hinge structure comprises a static support, a dynamic support, a first limiting piece and a second limiting piece. The static support is hinged to the dynamic support. The first limiting piece is arranged on the static support and is provided with a first limiting portion. The second limiting piece is arranged on the dynamic support and is provided with a second limiting portion. The hinge structure provided by the application limits the rotation of the dynamic support relative to the static support through the abutment of the first limiting portion and the second limiting portion, so that the door plate keeps a certain opening angle, the door plate is not easy to be closed by external force or wind force, and the hinge structure has good stability. When it is necessary to close the door plate, only a force sufficient to make at least one of the first limiting piece and the second limiting piece elastically deform so that the second limiting portion sweeps across the first limiting portion is needed to be applied to the door plate, and the hinge structure is convenient to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of door hinge, in particular to a hinge structure. BACKGROUND

[0002] In low-voltage power distribution products, there are many box-type products, which are usually composed of a bottom box and a door plate. The door plate can be opened upward, or opened to the left or right. In order to overhaul the internal components and other accessories, it is usually necessary to open the door plate and keep it at a certain angle to facilitate the overhaul.

[0003] At present, when the door plate is opened upward, the maintenance personnel usually support the door plate with one hand to open, and operate the maintenance with the other hand, which brings great inconvenience to the maintenance personnel. When the door plate is opened to the left or right, if the door plate is subjected to external force or wind force, the door plate is easy to close, which may cause safety problems to the maintenance personnel and may cause certain damage to the equipment. SUMMARY

[0004] The purpose of the present application is to provide a hinge structure which can keep the door plate at a certain opening angle, facilitate the overhaul, and effectively avoid the situation that the door plate is easy to close.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] A hinge structure is provided, comprising:

[0007] A static support;

[0008] A dynamic support hinged to the static support;

[0009] At least one first limiting piece is arranged on the static support, and the first limiting piece is provided with a first limiting portion;

[0010] At least one second limiting piece is arranged on the dynamic support, and the second limiting piece is provided with a second limiting portion; wherein,

[0011] The first limiting portion and the second limiting portion can abut to limit the rotation of the dynamic support relative to the static support;

[0012] At least one of the first limiting piece and the second limiting piece can be elastically deformed, so that the second limiting portion sweeps across the first limiting portion.

[0013] Optionally, the first limiting member is an elastic member, and the first limiting member comprises an arc-shaped plate, and the first limiting part comprises a first bending part and a second bending part which are sequentially formed by bending the arc-shaped plate, and the first bending part and the second bending part are capable of abutting against the second limiting part to limit the rotation of the dynamic support relative to the static support in two directions of positive and negative directions respectively.

[0014] Optionally, the static support is provided with at least one limiting groove, and the arc-shaped plate is provided with at least one limiting protrusion which is inserted into the limiting groove.

[0015] Optionally, the first limiting member is provided with at least one first limiting part, and the second limiting member is provided with at least one second limiting part, and the second limiting part is capable of abutting against the corresponding first limiting part along the rotation direction of the dynamic support.

[0016] Optionally, the periphery of the second limiting member is provided with an arc-shaped surface, and the second limiting part is arranged on the arc-shaped surface, and the second limiting part comprises a first surface and a second surface, the first surface is smoothly connected with the arc-shaped surface, and the second surface is arranged at an angle with the arc-shaped surface, and the first limiting part is capable of abutting against the first surface or the second surface.

[0017] Optionally, the hinge shaft is arranged between the static support and the dynamic support.

[0018] Optionally, the dynamic support is provided with a first positioning hole, the second limiting member is provided with a second positioning hole, and the hinge shaft is arranged in the first positioning hole and the second positioning hole; wherein,

[0019] The first positioning hole and the second positioning hole are both non-circular, and at least part of the inner surface of the first positioning hole and at least part of the inner surface of the second positioning hole are attached to the periphery of the hinge shaft, so as to realize the circumferential fixation of the second limiting member and the dynamic support relative to the hinge shaft.

[0020] Optionally, the first end of the hinge shaft is provided with a resisting part, and the second end of the hinge shaft is arranged in the static support and the dynamic support and connected with a resisting member; or

[0021] Both ends of the hinge shaft are provided with the resisting member.

[0022] Optionally, one of the first limiting member and the second limiting member is provided with a containing groove, and the other is arranged in the containing groove.

[0023] Optionally, the static support comprises two oppositely arranged first hinge plates, the dynamic support comprises two second hinge plates corresponding to the first hinge plates one by one, and the first hinge plates are hinged with the second hinge plates.

[0024] Advantages:

[0025] The hinge structure provided by the application limits the rotation of the movable support relative to the static support through the abutment of the first limiting part and the second limiting part, so that the door plate maintains a certain opening angle, facilitating maintenance. When the door plate is subjected to external force or wind force, the external force or wind force will not cause at least one of the first limiting part and the second limiting part to elastically deform to allow the second limiting part to pass through the first limiting part, so that the door plate is not easily closed by the external force or wind force, and has good stability. In addition, when it is necessary to close the door plate, only a force sufficient to cause at least one of the first limiting part and the second limiting part to elastically deform to allow the second limiting part to pass through the first limiting part needs to be applied to the door plate, facilitating operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is an exploded view of the hinge structure provided by the application;

[0027] Figure 2 is a structural schematic view of the static support provided by the application;

[0028] Figure 3 is a structural schematic view of the movable support provided by the application;

[0029] Figure 4 is a structural schematic view of the first limiting part provided by the application;

[0030] Figure 5 is a structural schematic view of the second limiting part provided by the application;

[0031] Figure 6 is a structural schematic view of the hinge structure provided by the application;

[0032] Figure 7 is a structural schematic view of the A in the hinge structure provided by the application; Figure 6

[0033] is a structural schematic view of the shaft provided by the application; Figure 8

[0034] is a structural schematic view of the resisting part provided by the application. Figure 9 In the drawings:

[0035]

[0036] 100, static support; 110, first fixed plate; 111, first mounting hole; 120, first hinge plate; 121, open slot; 122, positioning slot; 123, third positioning hole;

[0037] ​200, movable support; 210, second fixing plate; 2101, first plate; 2102, second plate; 211, second mounting hole; 212, strip-shaped hole; 213, wire passing hole; 220, second hinged plate; 221, first positioning hole; 2211, first plane;

[0038] 300, first limiting piece; 310, arc-shaped plate; 311, first limiting part; 3111, first bending part; 3112, second bending part; 312, positioning protrusion;

[0039] 400, second limiting piece; 401, arc-shaped surface; 410, second limiting part; 411, first surface; 412, second surface; 420, second positioning hole; 421, second plane;

[0040] 500, accommodating groove;

[0041] 600, rotating shaft; 610, third plane; 620, resisting part; 630, limiting groove; 640, through hole;

[0042] 700, resisting piece. DETAILED DESCRIPTION

[0043] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the application, and not to limit the application. In addition, it should be noted that, for the convenience of description, only the parts related to the application are shown in the drawings, not all the structures.

[0044] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0045] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0046] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0047] Referring to Figures 1 to 5 As shown in the drawings, the present embodiment provides a hinge structure, which comprises a static support 100, a dynamic support 200, a first limiting piece 300 and a second limiting piece 400. Specifically, the static support 100 is hinged with the dynamic support 200, the first limiting piece 300 is arranged on the static support 100, the first limiting piece 300 is provided with a first limiting portion 311, the second limiting piece 400 is arranged on the dynamic support 200, and the second limiting piece 400 is provided with a second limiting portion 410; wherein the first limiting portion 311 and the second limiting portion 410 can abut to limit the rotation of the dynamic support 200 relative to the static support 100; at least one of the first limiting piece 300 and the second limiting piece 400 can produce elastic deformation to make the second limiting portion 410 sweep across the first limiting portion 311.

[0048] Specifically, the static support 100 is used for fixed connection with a bottom box (not shown), and the dynamic support 200 is used for fixed connection with a door panel (not shown).

[0049] In the present embodiment, the rotation of the dynamic support 200 relative to the static support 100 is limited by the abutment of the first limiting portion 311 and the second limiting portion 410, so that the door panel maintains a certain opening angle, facilitating maintenance. And when the door panel is acted on by external force or wind force, the external force or wind force will not cause at least one of the first limiting piece 300 and the second limiting piece 400 to produce elastic deformation that allows the second limiting portion 410 to sweep across the first limiting portion 311 within a certain range, so that the door panel is not easily closed by external force or wind force, and has good stability. In addition, when it is necessary to close the door panel, only a force sufficient to cause at least one of the first limiting piece 300 and the second limiting piece 400 to produce elastic deformation that allows the second limiting portion 410 to sweep across the first limiting portion 311 needs to be applied to the door panel, which is convenient to operate.

[0050] In the present embodiment, referring to Figure 2 As shown in the drawings, the static support 100 comprises a first fixed plate 110, a plurality of first mounting holes 111 are arranged on the first fixed plate 110, and a screw or other fixing piece is passed through the first mounting hole 111 and connected with the bottom box to fix the static support 100 on the bottom box.

[0051] Specifically, the static support 100 further comprises a first hinged plate 120, which is hinged with the dynamic support 200. Exemplarily, the first hinged plate 120 can be provided as two and arranged at two side edges of the first fixed plate 110. The first hinged plate 120 can be integrally extended from the first fixed plate 110 perpendicularly to the first fixed plate 110. Further, the part of the first hinged plate 120 hinged with the dynamic support 200 can be arranged protruding from the first fixed plate 110, forming a space for rotation of the dynamic support 200 relative to the static support 100, avoiding interference.

[0052] Exemplarily, the static support 100 can be formed by bending sheet metal.

[0053] Specifically, the first hinged plate 120 can further be provided with an open slot 121, which can be matched with a rib in the bottom box or a structural member in the bottom box, so as to realize positioning and installation of the static support 100.

[0054] In the embodiment, as shown in Figure 3 The dynamic support 200 comprises a second fixed plate 210, which is provided with a plurality of second mounting holes 211. Screws or other fixing members are arranged through the second mounting holes 211 and connected with the door plate, so as to fix the dynamic support 200 on the door plate.

[0055] Further, the second fixed plate 210 can be provided with a strip-shaped hole 212. A rib is arranged on the door plate and arranged through the strip-shaped hole 212, so as to realize positioning and installation of the dynamic support 200 relative to the door plate.

[0056] Further, the second fixed plate 210 can be provided with a wire passing hole 213, which is convenient for wire insertion. The shape of the wire passing hole 213 can include but is not limited to a rectangle or a circle.

[0057] Further, the dynamic support 200 comprises a second hinged plate 220, which is hinged with the first hinged plate 120. The second hinged plate 220 is integrally extended from the second fixed plate 210 and arranged perpendicularly to the second fixed plate 210. Exemplarily, the second hinged plate 220 can be provided as two and correspond to the first hinged plate 120 one by one. Further, the two second hinged plates 220 are arranged at two side edges of the second fixed plate 210. Further, the two second hinged plates 220 are arranged between the two first hinged plates 120.

[0058] Exemplarily, the second fixed plate 210 can be a flat plate or can be bent to form an angle.

[0059] The second fixed plate 210 is bent into an angle shape to have a first plate 2101 and a second plate 2102. Preferably, the first plate 2101 and the second plate 2102 are bent into a right angle shape, and it can be understood that the included angle between the first plate 2101 and the second plate 2102 is 90°.

[0060] Further, a strip-shaped hole 212 is formed at the intersection of the first plate 2101 and the second plate 2102, a second mounting hole 211 and a wire passing hole 213 are arranged on the first plate 2101, and the second hinge plate 220 is integrally extended from the second plate 2102.

[0061] In a feasible implementation, the number of the first hinge plates 120 and the number of the second hinge plates 220 can each be one or more than one, and the number of the first hinge plates 120 and the number of the second hinge plates 220 can be the same or different, which is not limited herein.

[0062] In a feasible implementation, at least one of the first limiting member 300 and the second limiting member 400 is an elastic member. It can be understood that the first limiting member 300 is an elastic member, and the second limiting member 400 is a plastic member; or the first limiting member 300 is a plastic member, and the second limiting member 400 is an elastic member; or both the first limiting member 300 and the second limiting member 400 are elastic members.

[0063] In a feasible implementation, as shown in Figure 4 and Figure 5 One of the first limiting member 300 and the second limiting member 400 is provided with a receiving groove 500, and the other is arranged in the receiving groove 500, so that the structure of the hinge structure is compact.

[0064] In a feasible implementation, the first limiting part 311 can also be in a protruding shape, and the corresponding second limiting part 410 can be in a groove shape or a protruding shape, preferably, the second limiting part 410 is in a protruding shape. Of course, the first limiting part 311 can be in a groove shape, and the corresponding second limiting part 410 can be in a protruding shape or a groove shape.

[0065] In this embodiment, referring to Figure 4 , taking the first limiting member 300 as an elastic member as an example, the first limiting member 300 includes an arc-shaped plate 310, and a first limiting part 311 is bent and formed from the arc-shaped plate 310, facilitating the molding and manufacturing of the first limiting member 300.

[0066] Specifically, the first limiting part 311 includes a first bending part 3111 and a second bending part 3112 which are sequentially bent from the arc-shaped plate 310, and the first bending part 3111 and the second bending part 3112 can abut against the second limiting part 410 to respectively limit the rotation of the dynamic support 200 relative to the static support 100 in the forward and reverse directions.

[0067] Specifically, taking the first limiting piece 300 provided with the accommodating groove 500 as an example, the accommodating groove 500 is formed by the arc-shaped plate 310.

[0068] Specifically, as shown in Figure 2 The static support 100 is provided with a positioning groove 122, and the first limiting piece 300 is provided with a positioning protrusion 312. More specifically, as shown in Figure 4 The positioning protrusion 312 is provided on the arc-shaped plate 310 and is inserted into the positioning groove 122 to fix the arc-shaped plate 310 relative to the static support 100, facilitating the positioning and installation of the first limiting piece 300 relative to the static support 100. The positioning groove 122 is provided on the first hinged plate 120.

[0069] For example, the positioning groove 122 can or can not pass through the static support 100, which is not limited in the application.

[0070] In other embodiments, the static support 100 is provided with a positioning protrusion, and the first limiting piece 300 is provided with a positioning groove. The positioning protrusion is inserted into the positioning groove on the first limiting piece 300 to fix the first limiting piece 300 relative to the static support 100, achieving the positioning and installation of the first limiting piece 300 relative to the static support 100.

[0071] For example, the positioning groove 122 and the positioning protrusion 312 are provided with at least one, for example, two positioning protrusions 312 are provided along the extension direction of the arc-shaped plate 310. The arc-shaped plate 310 is formed by bending a long strip plate. The extension direction of the arc-shaped plate 310 refers to the length direction of the long strip plate. The positioning protrusion 312 is provided on one side of the width direction of the arc-shaped plate 310, that is, the positioning protrusion 312 is located on one side of the width direction of the long strip plate.

[0072] Specifically, the first limiting piece 300 is provided with at least one first limiting part 311, and the second limiting piece 400 is provided with at least one second limiting part 410. When the first limiting part 311 and the second limiting part 410 are both provided with multiple parts, the second limiting part 410 can abut on the corresponding first limiting part 311 along the rotation direction of the dynamic support 200, so that the door plate is more resistant to external force or wind force. In this embodiment, taking the first limiting part 311 as an example, the arc-shaped plate 310 is bent to form the accommodating groove 500, and the arc-shaped plate 310 is bent to form the protruding first limiting part 311 in the accommodating groove 500. In a feasible implementation, the first limiting part 311 is provided with two parts, which are located at the two ends of the length direction of the arc-shaped plate 310, facilitating the molding and manufacturing.

[0073] In this embodiment, referring to Figure 5As shown, the second limiting part 410 is provided on the arc surface 401 of the second limiting part 400, and the second limiting part 410 includes a first surface 411 and a second surface 412. The first surface 411 is smoothly connected with the arc surface 401, and the second surface 412 is arranged at an angle with the arc surface 401. The first limiting part 311 can abut against the first surface 411 or the second surface 412. The first surface 411 and the second surface 412 are connected by a circular arc, which effectively reduces the abrasion between the first limiting part 300 and the second limiting part 400. In this embodiment, the second limiting part 400 can rotate relative to the first limiting part 300. It can be understood that the movable support 200 drives the second limiting part 400 to rotate in the accommodating groove 500 of the first limiting part 300, so that the second limiting part 410 can move relative to the first limiting part 311. When the second limiting part 410 passes the first limiting part 311 from the side provided with the first surface 411, the first surface 411 is smoothly connected with the arc surface 401, so that the force between the first limiting part 300 and the second limiting part 400 is small, and thus the rotation resistance of the movable support 200 is small. When the second limiting part 410 passes the first limiting part 311 from the side provided with the second surface 412, the second surface 412 is arranged at an angle with the arc surface 401, so that the force between the first limiting part 300 and the second limiting part 400 is large, and thus the rotation resistance of the movable support 200 is large. Exemplarily, the direction in which the second limiting part 410 passes the first limiting part 311 from the side provided with the first surface 411 can be the opening direction of the door panel, and the direction in which the second limiting part 410 passes the first limiting part 311 from the side provided with the second surface 412 can be the closing direction of the door panel. In this way, the door panel can be easily opened, and the door panel is not easily closed by external force or wind.

[0074] In this embodiment, as shown in Figure 2 , Figure 3 , Figures 5 to 7 The hinge structure further includes a rotating shaft 600, which is arranged in the static support 100 and the movable support 200, and realizes the hinge connection between the static support 100 and the movable support 200 through the rotating shaft 600, thereby facilitating the assembly.

[0075] In a feasible implementation, the static support 100 is rotationally connected with the rotating shaft 600, the second limiting part 400 is arranged on the rotating shaft 600, and the second limiting part 400 and the movable support 200 are fixed relative to the circumference of the rotating shaft 600, that is, the movable support 200, the second limiting part 400 and the rotating shaft 600 rotate together, thereby ensuring the cooperation between the first limiting part 300 and the second limiting part 400.

[0076] Specifically, as shown in Figure 3 and Figure 5As shown, the movable bracket 200 is provided with a first positioning hole 221, the second limiting member 400 is provided with a second positioning hole 420, and the rotating shaft 600 passes through the first positioning hole 221 and the second positioning hole 420. In this embodiment, both the first positioning hole 221 and the second positioning hole 420 are not circular. The inner surfaces of both the first positioning hole 221 and the second positioning hole 420 are in contact with the periphery of the rotating shaft 600, thereby ensuring that both the second limiting member 400 and the movable bracket 200 are circumferentially fixed relative to the rotating shaft 600, and further facilitating assembly. The second hinge plate 220 is provided with the first positioning hole 221.

[0077] In one feasible implementation, at least one first plane 2211 is provided in the first positioning hole 221, at least one second plane 421 is provided in the second positioning hole 420, and a third plane 610 is provided on the periphery of the rotating shaft 600. The rotating shaft 600 passes through the first positioning hole 221 and the second positioning hole 420, and both the first plane 2211 and the second plane 421 are fitted with the third plane 610, so that the second limiting member 400 and the movable bracket 200 are both fixed in the circumferential direction relative to the rotating shaft 600. For example, two first planes 2211 are provided and arranged in parallel, that is, two second planes 421 and two third planes 610 are provided, so that the connection between the movable bracket 200 and the second limiting member 400 and the rotating shaft 600 is stable.

[0078] In one feasible implementation, the first positioning hole 221 and the second positioning hole 420 can also be waist-shaped, elliptical, or toothed. The part of the rotating shaft 600 that mates with the first positioning hole 221 and the second positioning hole 420 can have the same or different shape as the first positioning hole 221 and the second positioning hole 420, as long as the second limiting member 400 and the moving bracket 200 are both circumferentially fixed relative to the rotating shaft 600. This application does not make any specific limitations.

[0079] In one feasible implementation, the rotating shaft 600, the second limiting member 400, and the movable bracket 200 can be fixed together by adhesive or welding.

[0080] Specifically, such as Figure 2 As shown, the stationary support 100 is provided with a third positioning hole 123, and the rotating shaft 600 passes through the third positioning hole 123. In this embodiment, the third positioning hole 123 is a round hole, thereby realizing the rotation of the rotating shaft 600 relative to the stationary support 100. The first hinge plate 120 is provided with the third positioning hole 123.

[0081] It is worth mentioning that the static support 100 can also be fixed relative to the circumference of the rotating shaft 600, the rotating shaft 600 can also be rotationally connected with the dynamic support 200, and the second limiting piece 400 is fixed on the dynamic support 200. Among them, the way that the static support 100 and the rotating shaft 600 keep relative fixation is the same as the way that the dynamic support 200 and the rotating shaft 600 keep relative fixation, and will not be repeated here. Of course, the static support 100 and the dynamic support 200 can also be rotationally connected with the rotating shaft 600, and the second limiting piece 400 is fixed on the dynamic support 200.

[0082] In a possible implementation, the first end of the rotating shaft 600 is provided with a resisting portion 620, the second end of the rotating shaft 600 is provided with a resisting piece 700 and passes through the static support 100 and the dynamic support 200, facilitating assembly.

[0083] Exemplarily, the rotating shaft 600 and the resisting piece 700 can be a pin structure, facilitating assembly.

[0084] Exemplarily, the rotating shaft 600 can be a pin shaft, and the head of the pin shaft is the resisting portion 620.

[0085] Exemplarily, the resisting piece 700 can be a split pin, an open retaining ring, a nut or other structural pieces. Specifically, when the resisting piece 700 is a split pin, the circumferential portion of the second end of the rotating shaft 600 is provided with a plug hole (not shown) in the radial direction, and the resisting piece 700 is provided in the plug hole. Specifically, as shown in Figure 8 and Figure 9 When the resisting piece 700 is an open retaining ring, the circumferential portion of the second end of the rotating shaft 600 is provided with a limiting groove 630, and the open retaining ring is clamped at the limiting groove 630. Specifically, when the resisting piece 700 is a nut, the second end of the rotating shaft 600 is provided with external threads, and the nut is threadedly connected with the rotating shaft 600.

[0086] In a possible implementation, the two ends of the rotating shaft 600 can be provided with the resisting piece 700, the first end of the rotating shaft 600 is not provided with the resisting portion 620, and the effect of the first end of the rotating shaft 600 being provided with the resisting portion 620 and the second end being provided with the resisting piece 700 is the same, and it is more convenient for the rotating shaft 600 to pass through the static support 100, the dynamic support 200 and the second limiting piece 400.

[0087] It is worth mentioning that the rotating shaft 600 is provided with a through hole 640, facilitating the insertion of a wire.

[0088] In a possible implementation, the rotating shaft 600 can be provided with one, and two first hinge plates 120 and two second hinge plates 220 are passed through by the rotating shaft 600, effectively avoiding the phenomenon of rotation jamming.

[0089] In a possible implementation, as shown in Figure 6As shown, the rotating shaft 600 can be provided with two, and the two rotating shafts 600 are respectively arranged through the third positioning hole 123 of the first hinge plate 120 and the first positioning hole 221 of the second hinge plate 220 on the corresponding side, which is more convenient for assembly.

[0090] In the embodiment, the first limiting member 300 and the second limiting member 400 are each provided with at least one.

[0091] In a feasible implementation, as shown in Figure 6 and Figure 7 As shown, a set of first limiting members 300 and second limiting members 400 can be arranged between the static support 100 and the dynamic support 200. Specifically, the first limiting member 300 and the second limiting member 400 are arranged between the first hinge plate 120 and the second hinge plate 220 on the same side, and the first limiting member 300 and the second limiting member 400 are limited in position along the axis direction of the rotating shaft 600 by the first hinge plate 120 and the second hinge plate 220. Exemplarily, the rotating shaft 600 is provided with two, and the first end of the rotating shaft 600 is the abutting portion 620. When the second end of the rotating shaft 600 is connected to the abutting member 700, the first end of the rotating shaft 600 is sequentially arranged through the first positioning hole 221 of the dynamic support 200, the second positioning hole 420 of the first limiting member 300 and the third positioning hole 123 of the static support 100 on the corresponding side, and is connected to the abutting member 700, which is convenient for assembly.

[0092] In a feasible implementation, two sets of first limiting members 300 and second limiting members 400 can be arranged between the static support 100 and the dynamic support 200, and the two sets of first limiting members 300 and second limiting members 400 are respectively arranged between the first hinge plate 120 and the second hinge plate 220 on the corresponding side.

[0093] In a feasible implementation, the first limiting member 300 and the second limiting member 400 can be provided with three or more groups, which are not limited in the present application.

[0094] Obviously, the above embodiments of the present application are only examples for clear illustration of the present application, and are not a limitation on the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. Hinge structure, characterized in that The application relates to a hinge mechanism, which comprises: a static support (100); a dynamic support (200) hinged to the static support (100); at least one first limiting part (300) arranged on the static support (100), wherein the first limiting part (300) is provided with a first limiting portion (311); at least one second limiting part (400) arranged on the dynamic support (200), wherein the second limiting part (400) is provided with a second limiting portion (410); wherein a curved surface (401) is arranged on the periphery of the second limiting part (400), the second limiting portion (410) is arranged on the curved surface (401), the second limiting portion (410) comprises a first surface (411) and a second surface (412), the first surface (411) is smoothly connected with the curved surface (401), and the second surface (412) is arranged at an angle with the curved surface (401), the first limiting portion (311) can abut on the first surface (411) or the second surface (412) to limit the rotation of the dynamic support (200) relative to the static support (100); at least one of the first limiting part (300) and the second limiting part (400) can be elastically deformed, so that the first surface (411) or the second surface (412) on the second limiting portion (410) can respectively sweep the first limiting portion (311); the force required for the second limiting portion (410) to sweep the first limiting portion (311) from the side provided with the first surface (411) is smaller than the force required for the second limiting portion (410) to sweep the first limiting portion (311) from the side provided with the second surface (412).

2. The hinge structure according to claim 1, characterized in that The first limiting part (300) is an elastic part, the first limiting part (300) comprises an arc-shaped plate (310), the first limiting portion (311) comprises a first bending portion (3111) and a second bending portion (3112) which are sequentially formed by bending the arc-shaped plate (310), and the first bending portion (3111) and the second bending portion (3112) can abut on the second limiting portion (410) to limit the rotation of the dynamic support (200) relative to the static support (100) in two directions.

3. The hinge structure according to claim 2, characterized in that The static support (100) is provided with at least one positioning groove (122), the arc-shaped plate (310) is provided with at least one positioning protrusion (312), and the positioning protrusion (312) is inserted into the positioning groove (122).

4. The hinge structure according to claim 1, characterized in that, The first limiting part (300) is provided with at least one first limiting portion (311), the second limiting part (400) is provided with at least one second limiting portion (410), and the second limiting portion (410) can abut on the corresponding first limiting portion (311) along the rotation direction of the dynamic support (200).

5. The hinge structure according to claim 1, wherein The hinge mechanism further comprises a rotating shaft (600), and the rotating shaft (600) penetrates the static support (100) and the dynamic support (200).

6. The hinge structure according to claim 5, characterized in that The movable support (200) is provided with a first positioning hole (221), the second limiting part (400) is provided with a second positioning hole (420), and the rotating shaft (600) is arranged in the first positioning hole (221) and the second positioning hole (420); wherein, The first positioning hole (221) and the second positioning hole (420) are both non-circular, and at least part of the inner surface of the first positioning hole (221) and at least part of the inner surface of the second positioning hole (420) are in close contact with the circumferential part of the rotating shaft (600), so as to realize the circumferential fixation of the second limiting part (400) and the movable support (200) relative to the rotating shaft (600).

7. The hinge structure according to claim 5, wherein The first end of the rotating shaft (600) is provided with a resisting part (620), the second end of the rotating shaft (600) is arranged in the static support (100) and the movable support (200) and is connected with a resisting part (700); or Both ends of the rotating shaft (600) are provided with the resisting part (700).

8. The hinge structure according to any one of claims 1 to 7, characterized in that One of the first limiting part (300) and the second limiting part (400) is provided with a containing groove (500), and the other is arranged in the containing groove (500).

9. The hinge structure according to any one of claims 1 to 7, characterized in that The static support (100) comprises two oppositely arranged first hinged plates (120), the movable support (200) comprises two second hinged plates (220) corresponding to the first hinged plates (120) one by one, and the first hinged plates (120) are hinged with the second hinged plates (220).

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