Hinge

Abstract

According to the hinge, when a first main body rotates relative to a second main body, a second connecting part of a first connecting rod rotates relative to the second main body and synchronously slides relative to the second main body, and a third connecting part of a second connecting rod rotates relative to the first main body and synchronously slides relative to the first main body; the size of the sliding stroke of the second connecting part and the size of the maximum rotating angle of the first main body relative to the second main body have a mapping relationship; according to the hinge, due to the fact that the adjusting assembly can adjust the sliding stroke of the second connecting part, when the adjusting assembly adjusts the sliding stroke of the second connecting part, the size of the maximum rotation angle of the first main body relative to the second main body can be indirectly adjusted; a user can adjust the maximum angle of relative rotation of the first main body and the second main body through the adjusting assembly according to actual requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of connecting components, and in particular to a hinge. Background Art

[0002] A hinge is a mechanical device used to connect two solid bodies and allow them to rotate relative to each other.

[0003] The hinge in the related art comprises a first body, a second body, a first connecting rod and a second connecting rod. The first body and the second body are movably connected through the first connecting rod and the second connecting rod so that the first body can rotate relative to the second body.

[0004] However, after the existing hinge is manufactured, the maximum angle of relative rotation between the first body and the second body is already determined, and it is difficult for the user to adjust the maximum angle of relative rotation between the first body and the second body according to actual needs. Summary of the invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art. The present invention provides a hinge. In the hinge of this embodiment, the maximum angle of relative rotation between the first body and the second body can be adjusted according to actual needs.

[0006] The hinge provided according to an embodiment of the present invention includes a first body, a second body, a rotating shaft, a first connecting rod, a second connecting rod and an adjusting assembly; the second body is arranged on one side of the first body; the first connecting rod has a first hinge part, a first connecting part and a second connecting part, the first connecting part is rotatably connected to the first body, and the second connecting part is rotatably and slidably connected to the second body; the second connecting rod has a second hinge part, a third connecting part and a fourth connecting part, the second hinge part is hinged to the first hinge part through a rotating shaft, the third connecting part is rotatably and slidably connected to the first body, and the fourth connecting part is rotatably connected to the second body; the adjusting assembly is arranged on the second body and is used to adjust the sliding stroke of the second connecting part.

[0007] The hinge described in the present invention has at least the following beneficial effects: in the hinge of the present application, when the first body rotates relative to the second body, the second connection part of the first connecting rod will rotate relative to the second body and will slide relative to the second body synchronously, and the third connection part of the second connecting rod will rotate relative to the first body and will slide relative to the first body synchronously. Correspondingly, the sliding stroke of the second connection part and the maximum angle of rotation of the first body relative to the second body have a mapping relationship; since the adjustment component can adjust the sliding stroke of the second connection part, the adjustment component can indirectly adjust the maximum angle of rotation of the first body relative to the second body when adjusting the sliding stroke of the second connection part. Furthermore, in the hinge of the present application, the user can adjust the maximum angle of relative rotation of the first body and the second body through the adjustment component according to actual needs.

[0008] According to the hinge described in an embodiment of the present invention, the adjustment component includes a limit member, which is slidably disposed on the second main body, and the sliding direction of the limit member is arranged parallel to the sliding direction of the second connecting part. The limit member has a limit part, which is arranged on the moving path of the second connecting part and is used to abut against the second connecting part.

[0009] According to the hinge described in the embodiment of the present invention, the adjustment component further includes a locking structure, which is connected to the limiting member and the second body respectively and can lock and fix the limiting member on the second body.

[0010] According to the hinge described in an embodiment of the present invention, the locking structure includes a threaded locking member, and a long hole is provided on the second main body. The extension direction of the long hole is arranged parallel to the sliding direction of the limiting member. The threaded locking member can be slidably passed through the long hole and is threadedly connected to the limiting member.

[0011] According to the hinge described in an embodiment of the present invention, a scale mark is provided on the second body, the scale mark is arranged on one side of the elongated hole and is arranged along the extension direction of the elongated hole, and the scale mark cooperates with the threaded locking piece to indicate the maximum rotation angle of the first body relative to the second body.

[0012] According to the hinge described in an embodiment of the present invention, the locking structure includes a threaded locking member, and the second body is provided with a plurality of through holes spaced apart along the sliding direction of the limiting member. The threaded locking member is inserted into one of the through holes and is threadedly connected to the limiting member.

[0013] According to the hinge described in the embodiment of the present invention, the limiting member is provided with a first anti-slip pattern, and the first anti-slip pattern abuts against the surface of the second body.

[0014] According to the hinge described in the embodiment of the present invention, a first sliding groove is provided on the second body, a sliding rod is slidably provided in the first sliding groove, and the second connecting portion is rotatably connected to the sliding rod.

[0015] The hinge according to the embodiment of the present invention also includes a rotating shaft and a friction plate. The friction plate is arranged between the first connecting rod and the second connecting rod, and is respectively abutted against the first hinge part and the second hinge part. The rotating shaft is sequentially passed through the first hinge part, the friction plate and the second hinge part. The first hinge part and the friction plate are fixed relative to the rotating shaft in the circumferential direction of the rotating shaft, and the second hinge part is rotatable relative to the rotating shaft.

[0016] The hinge according to an embodiment of the present invention also includes a ratchet, which is sleeved on the rotating shaft and located on the side of the second connecting rod away from the first connecting rod. The ratchet is fixed relative to the rotating shaft in the circumferential direction of the rotating shaft. A groove and a protrusion are respectively provided at the end where the second connecting rod and the ratchet are close to each other. When the angle between the first connecting rod and the second connecting rod is at the minimum, the protrusion is inserted into the groove.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 It is a structural schematic diagram of a hinge according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 An exploded view of the hinge shown;

[0021] Figure 3 for Figure 1 A schematic structural diagram of a second main body of the hinge shown;

[0022] Figure 4 for Figure 3 A schematic structural diagram of the second main body from another viewing angle;

[0023] Figure 5 A schematic diagram of the structure of a position limiting member according to an embodiment of the present invention;

[0024] Figure 6 for Figure 1 A schematic structural diagram of a first connecting rod of the hinge shown;

[0025] Figure 7 for Figure 1 A schematic structural diagram of a second connecting rod of the hinge shown;

[0026] Figure 8 for Figure 2 A schematic diagram of the structure of the friction plate of the hinge shown;

[0027] Fig. 9 for Figure 2A schematic diagram of the structure of the ratchet wheel of the hinge shown;

[0028] Fig.10 for Figure 2 A schematic structural diagram of the rotating shaft of the hinge shown;

[0029] Fig.11 It is a structural schematic diagram of a second main body according to another embodiment of the present invention.

[0030] Reference numerals:

[0031] A first main body 100; a first penetration rod 110;

[0032] The second body 200; the long hole 210; the insertion hole 220; the first slide groove 230; the slide rod 240; the second slide groove 250; the second anti-slip pattern 260; the second insertion rod 270;

[0033] First connecting rod 300; first hinge portion 310; first through hole 311; first connecting portion 320; second connecting portion 330;

[0034] The second connecting rod 400; the second hinge portion 410; the fourth through hole 411; the third connecting portion 420; the fourth connecting portion 430; the groove 440;

[0035] Adjustment assembly 500; stopper 510; stopper portion 511; first anti-slip pattern 512; threaded locking member 520;

[0036] The rotating shaft 600 , the shaft rod 601 , the shaft head 602 , the friction plate 610 , the second through hole 611 , the ratchet 620 , the protrusion 621 , the third through hole 622 , the spring piece 630 , and the nut 640 . DETAILED DESCRIPTION

[0037] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] Reference below Figures 1 to 11 The hinge of the present application is described in detail.

[0042] refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 , the hinge according to the embodiment of the present invention includes a first body 100, a second body 200, a rotating shaft 600, a first connecting rod 300, a second connecting rod 400 and an adjusting assembly 500; the second body 200 is arranged on one side of the first body 100; the first connecting rod 300 has a first hinge part 310, a first connecting part 320 and a second connecting part 330, the first connecting part 320 is rotatably connected to the first body 100, and the second connecting part 330 is rotatably and slidably connected to the second body 200; the second connecting rod 400 has a second hinge part 410, a third connecting part 420 and a fourth connecting part 430, the second hinge part 410 is hinged to the first hinge part 310 through the rotating shaft 600, the third connecting part 420 is rotatably and slidably connected to the first body 100, and the fourth connecting part 430 is rotatably connected to the second body 200; the adjusting assembly 500 is arranged on the second body 200, and is used to adjust the sliding stroke of the second connecting part 330.

[0043] It should be noted that when the hinge of the present invention is used, the first body 100 needs to rotate relative to the second body 200. For example, when the hinge of the present invention is applied to the hinge between a door body and a door frame, the first body 100 is connected to the door body, and the second body 200 is connected to the door frame. The user rotates the door body to open and close the door body. During the rotation of the door body, the first body 100 will rotate relative to the second body 200, and the angle range of rotation of the first body 100 relative to the second body 200 determines the maximum angle that the door body can open.

[0044] In the hinge of the present embodiment, when the first body 100 rotates relative to the second body 200, the first connection part 320 will rotate relative to the first body 100, the second connection part 330 will not only rotate relative to the second body 200, but also slide synchronously relative to the second body 200, the third connection part 420 will not only rotate relative to the first body 100, but also slide synchronously relative to the first body 100, the fourth connection part 430 will rotate relative to the second body 200, and every time the first body 100 rotates a certain angle relative to the second body 200, the second connection part 330 will slide a certain distance relative to the second body 200, that is, the rotation angle of the first body 100 relative to the second body 200 and the sliding distance of the second connection part 330 relative to the second body 200 have a certain mapping relationship.

[0045] It can be understood that in the hinge of the present invention, an adjustment component 500 is provided on the second body 200, and the adjustment component 500 is used to adjust the sliding stroke of the second connecting part 330; thus, when the user needs to adjust the maximum rotation angle of the first body 100 relative to the second body 200, the user can adjust the maximum sliding stroke of the second connecting part 330 relative to the second body 200 through the adjustment component 500, so as to achieve the adjustment of the maximum rotation angle of the first body 100 relative to the second body 200; accordingly, when the hinge of the present invention is applied to the connection between a door body and a door frame, the user can adjust the maximum sliding stroke of the second connecting part 330 relative to the second body 200 through the adjustment component 500, so as to achieve the adjustment of the maximum angle that the door body can open relative to the door frame.

[0046] In some embodiments of the present invention, the adjustment assembly 500 includes a limit member 510, which is slidably disposed on the second main body 200, and the sliding direction of the limit member 510 is arranged parallel to the sliding direction of the second connecting portion 330. The limit member 510 has a limit portion 511, which is arranged on the moving path of the second connecting portion 330 and is used to abut against the second connecting portion 330.

[0047] For example, Figure 3 and Figure 5 As shown, the second connecting portion 330 is slidably arranged in the vertical direction relative to the second main body 200, and a vertically extending second slide groove 250 is provided on the second main body 200. The limiting member 510 is at least partially inserted into the second slide groove 250, and the limiting member 510 can slide up and down along the second slide groove 250. A limiting portion 511 is provided at the front end of the limiting member 510, and the limiting portion 511 is located on the moving path of the second connecting portion 330 and is located directly above the second connecting portion 330.

[0048] It is understandable that when the user needs to adjust the maximum sliding stroke of the second connection part 330 relative to the second main body 200, the user can slide the limit member 510 along the second slide groove 250 to limit the moving path of the second connection part 330 through the limit portion 511 of the limit member 510, thereby achieving adjustment of the maximum sliding stroke of the second connection part 330 relative to the second main body 200.

[0049] It is understandable that the user can adjust the maximum sliding stroke of the second connection part 330 relative to the second body 200 by sliding the limiter 510, and the entire adjustment process is simple and convenient.

[0050] In a further embodiment of the present invention, reference Figure 3 Two second slide grooves 250 are provided on the second main body 200, and the two second slide grooves 250 are distributed along the left and right directions, and the notches of the two second slide grooves 250 are arranged oppositely, and the left and right ends of the limiting member 510 are respectively penetrated in the two second slide grooves 250.

[0051] It can be understood that by providing two second sliding grooves 250 , the stability of the limiting member 510 sliding relative to the second body 200 along the vertical direction can be further improved.

[0052] In some embodiments of the present invention, the adjustment assembly 500 further includes a locking structure, which is respectively connected to the limiting member 510 and the second body 200 and can lock and fix the limiting member 510 on the second body 200 .

[0053] It is understandable that after the user slides the limit member 510 to a preset position relative to the second body 200, the user can lock the limit member 510 on the second body 200 through the locking structure to reduce the probability of the limit member 510 automatically slipping relative to the second body 200 under the influence of external factors.

[0054] In a further embodiment of the present invention, the locking structure includes a threaded locking member 520, and a long hole 210 is provided on the second main body 200. The extension direction of the long hole 210 is arranged parallel to the sliding direction of the limiting member 510. The threaded locking member 520 can be slidably passed through the long hole 210 and is threadedly connected to the limiting member 510.

[0055] For example, Figure 4 As shown, a vertically extending long hole 210 is provided on the second body 200, and the rod of the threaded locking member 520 can be slidably inserted into the long hole 210 along the vertical direction and is threadedly connected to the limit member 510, and the head of the threaded locking member 520 can abut against the second body 200.

[0056] Furthermore, when the user needs to adjust the position of the limit member 510, the user can loosen the threaded locking member 520 so that the head of the threaded locking member 520 is spaced a certain distance from the second body 200. At this time, the user can drive the limit member 510 to slide in the vertical direction; when the user needs to lock and fix the limit member 510, the user can tighten the threaded locking member 520 so that the head of the threaded locking member 520 is close to the second body 200. At this time, a friction force sufficient to prevent the threaded locking member 520 from sliding along the limit member 510 can be generated between the head of the threaded locking member 520 and the second body 200.

[0057] In a further embodiment of the present invention, a plurality of elongated holes 210 are provided on the second body 200 , and the locking structure includes a plurality of threaded locking members 520 , which are respectively passed through the elongated holes 210 and threadedly connected to the limiting members 510 .

[0058] For example, Figure 4 As shown, three elongated holes 210 are provided on the second main body 200, and the three elongated holes 210 are spaced apart along the left-right direction. The locking structure includes three threaded locking members 520, and the three threaded locking members 520 are respectively passed through the three elongated holes 210, and the three threaded locking members 520 are all threadedly connected to the limiting member 510.

[0059] It is understandable that by providing a plurality of threaded locking members 520 , the locking structure's ability to lock and fix the position-limiting member 510 can be further improved, thereby further reducing the probability of the position-limiting member 510 automatically slipping relative to the second body 200 under external factors.

[0060] In some embodiments of the present invention, a scale mark is provided on the second body 200, and the scale mark is arranged on one side of the elongated hole 210 and along the extension direction of the elongated hole 210. The scale mark cooperates with the threaded locking member 520 to indicate the maximum rotation angle of the first body 100 relative to the second body 200.

[0061] It is understandable that by setting the scale mark, the user can intuitively understand the maximum rotation angle of the first body 100 relative to the second body 200 in the hinge of the present invention when the threaded locking member 520 is at different positions in the elongated hole 210 according to the scale mark.

[0062] In other embodiments of the present invention, in order to achieve the position adjustment of the thread locking member 520 on the second body 200, refer to Fig.11 The second main body is provided with a plurality of through holes 220 spaced apart along the vertical direction, and any two adjacent through holes 220 are connected to each other. The threaded locking member 520 is passed through one of the through holes 220 and is threadedly connected to the limiting member 510 .

[0063] It can be understood that the maximum opening angle of the first body 100 relative to the second body 200 is set with multiple angle values, and each angle value corresponds to an insertion hole 220. When the threaded locking member 520 is inserted into one of the insertion holes 220, the limit member 510 can limit the second connecting portion 330. At this time, the maximum opening angle of the first body 100 relative to the second body 200 is the angle value corresponding to the insertion hole 220 through which the threaded locking member 520 is inserted. Furthermore, the user can adjust the maximum opening angle of the first body 100 relative to the second body 200 by selecting the insertion hole 220 through which the threaded locking member 520 is inserted.

[0064] In some embodiments of the present invention, reference Figure 4 The second main body 200 is provided with a second anti-slip pattern 260 , and the second anti-slip pattern 260 is used to abut against the head of the threaded locking member 520 .

[0065] It can be understood that after the user tightens the threaded locking piece 520, the head of the threaded locking piece 520 abuts against the second anti-slip pattern 260 on the second main body 200; the setting of the second anti-slip pattern 260 can increase the friction coefficient between the second main body 200 and the head of the threaded locking piece 520. After the user tightens the threaded locking piece 520, there can be a greater friction between the threaded locking piece 520 and the second main body 200, so as to reduce the probability of the threaded locking piece 520 sliding along the elongated hole 210 under the action of external force.

[0066] When the thread locking member 520 is in the locked state, in order to further reduce the probability that the limiting member 510 automatically slips relative to the second body 200 under external factors, in some embodiments of the present invention, reference Figure 5 The limiting member 510 is provided with a first anti-slip pattern 512 , and the first anti-slip pattern 512 abuts against the surface of the second body 200 .

[0067] It is understandable that by providing the first anti-slip groove 512 on the limit member 510, the friction coefficient between the limit member 510 and the second body 200 can be increased, so that after the locking structure locks the limit member 510 on the second body 200, the locking and fixation of the limit member 510 on the second body 200 can be more secure.

[0068] In a further embodiment of the present invention, reference Figure 5 The first anti-slip pattern 512 is disposed at one end of the limiting member 510 close to the head of the threaded locking member 520 .

[0069] It is understandable that after the staff tightens the threaded locking member 520 , under the locking action of the threaded locking member 520 , the pressure between the first anti-slip groove 512 and the second body 200 can be greater to further enhance the friction between the limit member 510 and the second body 200 .

[0070] In other embodiments of the present invention, in addition to being provided on the limiting member 510 , the first anti-slip pattern 512 can also be provided on the second body 200 . In this case, the first anti-slip pattern 512 abuts against the surface of the limiting member 510 .

[0071] In some embodiments of the present invention, a first sliding groove 230 is disposed on the second body 200 , a sliding rod 240 is slidably disposed in the first sliding groove 230 , and the second connecting portion 330 is rotatably connected to the sliding rod 240 .

[0072] refer to Figure 3 A vertically extending first slide groove 230 is provided on the second main body 200, the slide rod 240 is extended in the left-right direction, and a part of the slide rod 240 is slidably arranged in the first slide groove 230 in the vertical direction, and the second connecting portion 330 is rotatably connected to the slide rod 240.

[0073] It is understandable that the slide bar 240 can slide relative to the second body 200, and the second connection part 330 can rotate relative to the slide bar 240. Therefore, the setting of the slide bar 240 can realize that the second connection part 330 can rotate relative to the second body 200 and can also slide relative to the second body 200.

[0074] In some embodiments of the present invention, reference Figure 2 The hinge also includes a friction plate 610, which is arranged between the first connecting rod 300 and the second connecting rod 400, and is respectively in contact with the first hinge part 310 and the second hinge part 410. The rotating shaft 600 is sequentially passed through the first hinge part 310, the friction plate 610 and the second hinge part 410. The first hinge part 310 and the friction plate 610 are fixed relative to the rotating shaft 600 in the circumferential direction of the rotating shaft 600, and the second hinge part 410 is rotatable relative to the rotating shaft 600.

[0075] It should be noted that if the first hinge part 310, the friction plate 610 and the second hinge part 410 are all rotatably connected to the rotating shaft 600, then, when the first body 100 rotates relative to the second body 200, there will be three situations between the first hinge part 310, the friction plate 610 and the second hinge part 410. The first situation: the first hinge part 310 and the friction plate 610 rotate relative to each other, and the second hinge part 410 and the friction plate 610 remain relatively stationary; the second situation: the first hinge part 310 and the friction plate 610 remain relatively stationary, and the second hinge part 410 and the friction plate 610 rotate relative to each other; the third situation: the first hinge part 310 and the friction plate 610 rotate relative to each other, and the second hinge part 410 also rotates relative to the friction plate 610. In the above three situations, the damping force received by the first body 100 when rotating relative to the second body 200 is also different, so that the stability of the first body 100 during the rotation relative to the second body 200 is poor.

[0076] In the hinge of the present embodiment, since the first hinge part 310 and the friction plate 610 are fixedly arranged relative to the rotating shaft 600 in the circumferential direction of the rotating shaft 600, and the second hinge part 410 is rotatably arranged relative to the rotating shaft 600, during the rotation of the first body 100 relative to the second body 200, only the second hinge part 410 and the friction plate 610 generate relative rotation, and only the sliding friction force is generated between the second hinge part 410 and the friction plate 610, so that the damping force received by the first body 100 during the rotation relative to the second body 200 is relatively constant, thereby improving the stability of the first body 100 during the rotation relative to the second body 200.

[0077] In some embodiments of the present invention, the hinge also includes a ratchet 620, which is sleeved on the rotating shaft 600 and is located on the side of the second connecting rod 400 away from the first connecting rod 300. The ratchet 620 is fixed relative to the rotating shaft 600 in the circumferential direction of the rotating shaft 600. A groove 440 and a protrusion 621 are respectively provided at the end where the second connecting rod 400 and the ratchet 620 are close to each other. When the angle between the first connecting rod 300 and the second connecting rod 400 is at the minimum, the protrusion 621 is inserted into the groove 440.

[0078] For example, Figure 2 , Figure 7 and Fig. 9 As shown, the hinge also includes a ratchet 620, which is sleeved on the rotating shaft 600 and located on the left side of the second connecting rod 400. The ratchet 620 is fixed relative to the rotating shaft 600 in the circumferential direction of the rotating shaft 600. A protrusion 621 is provided on the left end face of the ratchet 620, and a groove 440 matched with the protrusion 621 is provided on the right end face of the second connecting rod 400.

[0079] It should be noted that when the hinge of the present invention is applied to the connection between a door body and a door frame, the first main body 100 is connected to the door body, and the second main body 200 is connected to the door frame. When the angle between the first connecting rod 300 and the second connecting rod 400 is at the minimum, the door body is in a closed state. Since the protrusion 621 is inserted into the groove 440 at this time, the door body has greater resistance when opening. After the door body is opened, the protrusion 621 is separated from the groove 440. At this time, the damping of the door body when rotating relative to the door frame can remain stable.

[0080] It can be understood that, since the groove 440 and the protrusion 621 are respectively provided at the end close to the second connecting rod 400 and the ratchet 620, the angle between the first connecting rod 300 and the second connecting rod 400 is opened, and the first body 100 can be subjected to greater resistance when initially rotating relative to the second body 200, and then the first body 100 can be subjected to smaller and smoother resistance when rotating relative to the second body 200; correspondingly, when the hinge of the present invention is applied to the connection between a door body and a door frame, when the door body is in a closed state, the protrusion 621 can just fit into the groove 440, and it can be more difficult to open the door body relative to the door frame, so that the door body can be tightly closed, so as to reduce the probability of a gap between the door body and the door frame when the door body is in a closed state.

[0081] In some embodiments of the present invention, reference Figures 6 to 10 The rotating shaft 600 includes a shaft rod 601 and a shaft head 602 connected to each other. The cross-sectional shape of the shaft rod 601 is waist-shaped. The first hinge part 310, the friction plate 610 and the ratchet 620 are respectively provided with a waist-shaped first through hole 311, a second through hole 611 and a third through hole 622. The second hinge part 410 is provided with a circular fourth through hole 411. The shaft rod 601 is respectively penetrated through the first through hole 311, the second through hole 611, the third through hole 622 and the fourth through hole 411.

[0082] It should be noted that the specific connection structure between the second connecting rod 400 and the first body 100 refers to the specific connection structure between the first connecting rod 300 and the second body 200 .

[0083] In some embodiments of the present invention, reference Figure 1 and Figure 2The hinge includes a plurality of first links 300 and a plurality of second links 400, the plurality of first links 300 and the plurality of second links 400 are alternately arranged in the left-right direction, and a friction plate 610 is provided between any adjacent first links 300 and second links 400, the ratchet 620 is located at the common right end of each first link 300 and each second link 400, and a groove 440 is provided on the second link 400 located at the rightmost end, the hinge also includes a first insertion rod 110 and a second insertion rod 270, the first insertion rod 110 is provided on the first body 100, and the first connecting end of each first link 300 is It is rotatably connected to the first insertion rod 110, the second insertion rod 270 is arranged on the second main body 200, and the fourth connection end of each second connecting rod 400 is rotatably connected to the second insertion rod 270; the shaft rod 601 passes through each first hinge part 310, each second hinge part 410, each friction plate 610 and ratchet 620, and a nut 640 and a spring plate 630 are also sleeved on the shaft rod 601, and the spring plate 630 is located between the shaft head 602 and the ratchet 620, and the nut 640 cooperates with the shaft head 602 to clamp the first hinge part 310, the second hinge part 410, the friction plate 610, the ratchet 620 and the spring plate 630.

[0084] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hinge, characterized in that: include: First subject; A second body, disposed on one side of the first body; Rotating shaft; A first connecting rod, comprising a first hinge portion, a first connecting portion, and a second connecting portion, wherein the first connecting portion is rotatably connected to the first body, and the second connecting portion is rotatably and slidably connected to the second body; A second connecting rod has a second hinged portion, a third connecting portion and a fourth connecting portion, wherein the second hinged portion is hinged to the first hinged portion via the rotating shaft, the third connecting portion is rotatably and slidably connected to the first body, and the fourth connecting portion is rotatably connected to the second body; The adjusting component is arranged on the second main body and is used for adjusting the sliding stroke of the second connecting part.

2. A hinge according to claim 1, characterized in that: The adjustment component includes a limit member, which is slidably disposed on the second main body, and the sliding direction of the limit member is arranged parallel to the sliding direction of the second connecting part. The limit member has a limit part, which is arranged on the moving path of the second connecting part and is used to abut against the second connecting part.

3. A hinge according to claim 2, characterized in that: The adjustment assembly further includes a locking structure, which is connected to the limiting member and the second body respectively and can lock and fix the limiting member on the second body.

4. A hinge according to claim 3, characterized in that: The locking structure includes a threaded locking member, and a long hole is provided on the second body. The extension direction of the long hole is arranged parallel to the sliding direction of the limiting member. The threaded locking member can be slidably penetrated through the long hole and is threadedly connected to the limiting member.

5. A hinge according to claim 4, characterized in that: The second body is provided with a scale mark, which is arranged on one side of the elongated hole and along the extension direction of the elongated hole. The scale mark cooperates with the threaded locking member to indicate the maximum rotation angle of the first body relative to the second body.

6. A hinge according to claim 3, characterized in that: The locking structure includes a threaded locking member. The second body is provided with a plurality of insertion holes spaced apart along the sliding direction of the limiting member. The threaded locking member is inserted through one of the insertion holes and is threadedly connected to the limiting member.

7. A hinge according to claim 2, characterized in that: The limiting member is provided with a first anti-slip pattern, and the first anti-slip pattern abuts against the surface of the second body.

8. A hinge according to claim 1, characterized in that: The second main body is provided with a first sliding groove, a sliding rod is slidably provided in the first sliding groove, and the second connecting portion is rotatably connected to the sliding rod.

9. A hinge according to claim 1, characterized in that: It also includes a friction plate, which is arranged between the first connecting rod and the second connecting rod and abuts against the first hinge part and the second hinge part respectively. The rotating shaft is sequentially passed through the first hinge part, the friction plate and the second hinge part. The first hinge part and the friction plate are fixed relative to the rotating shaft in the circumferential direction of the rotating shaft, and the second hinge part is rotatable relative to the rotating shaft.

10. A hinge according to claim 1, characterized in that: It also includes a ratchet, which is sleeved on the rotating shaft and located on the side of the second connecting rod away from the first connecting rod. The ratchet is fixed relative to the rotating shaft in the circumferential direction of the rotating shaft. The ends of the second connecting rod and the ratchet that are close to each other are respectively provided with a groove and a protrusion. When the angle between the first connecting rod and the second connecting rod is at the minimum, the protrusion passes through the groove.

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