Push-out sliding support hinge and its fork structure

Abstract

The present invention discloses a push-out sliding support hinge and a fork structure thereof, wherein the fork structure comprises a first cantilever and a second cantilever, wherein the center line of the first cantilever connecting section of the first cantilever is arranged in parallel with the center line of the second cantilever connecting section; the center line of the third cantilever connecting section of the second cantilever is arranged in parallel with the center line of the fourth cantilever connecting section; when the fork structure is in a closed state, the center line of one cantilever connecting section of the first cantilever connecting section and the second cantilever connecting section coincides with the center line of one cantilever connecting section of the third cantilever connecting section and the fourth cantilever connecting section, and the center line of the other cantilever connecting section of the first cantilever connecting section and the second cantilever connecting section coincides with the center line of the other cantilever connecting section of the third cantilever connecting section and the fourth cantilever connecting section. The fork structure provided by the present invention enables an outward-opening product (window sash) located on a connecting beam to have no outward force perpendicular to the connecting beam in a closed state, thereby improving stability and sealing performance.

Description

Technical Field

[0001] The present invention relates to the technical field of hinge structures, and in particular to a push-out sliding support hinge and a fork-shaped structure thereof. Background Art

[0002] With the development of the construction industry, the opening method of outward-opening products (window sashes) in high-rise buildings is mainly a single-side small opening method. High-rise buildings are prone to strong winds and vortices at high levels, which can easily damage hinge products that open on one side, causing the risk of window sashes falling. In order to solve this problem, the hinge opening method is changed to a push-out sliding support hinge that can generate gaps on both sides to prevent strong winds from damaging the window sashes.

[0003] In the existing push-out sliding support hinge, a fork-shaped structure is arranged between two connecting beams, and the fork-shaped structure is composed of two cantilever arms of a straight bar structure, and the two cantilever arms are hinged in the middle. When one connecting beam is pushed away from the other connecting beam, the end of the fork-shaped structure slides along the connecting beam. However, when the fork-shaped structure is in a closed state, the two cantilever arms are still in a crossed state. After the push-out sliding support hinge is vertically installed, the force will slowly move sideways along the opening direction, which will inevitably cause a gap between the two connecting beams, affecting the sealing performance, and making the stability of the push-out sliding support hinge low.

[0004] Therefore, how to improve stability and sealing performance is a problem that needs to be solved urgently by people in this technical field. Summary of the invention

[0005] In view of this, the present invention provides a fork-shaped structure to improve stability and sealing performance. The present invention also provides a push-out sliding support hinge.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A fork-shaped structure, applied to a push-out sliding support hinge, comprises a first cantilever and a second cantilever, wherein the first cantilever and the second cantilever are hinged in the middle.

[0008] The first cantilever comprises a first hinged portion in the middle and a first cantilever connecting section and a second cantilever connecting section respectively arranged on both sides of the first hinged portion, and a center line of the first cantilever connecting section is arranged parallel to a center line of the second cantilever connecting section;

[0009] The second cantilever comprises a second hinged portion located in the middle and a third cantilever connecting section and a fourth cantilever connecting section arranged on both sides of the second hinged portion, and the center line of the third cantilever connecting section is arranged parallel to the center line of the fourth cantilever connecting section;

[0010] The first hinged portion is hinged to the second hinged portion;

[0011] When the fork-shaped structure is in a closed state, a center line of one of the first cantilever connecting segment and the second cantilever connecting segment coincides with a center line of one of the third cantilever connecting segment and the fourth cantilever connecting segment, and a center line of the other of the first cantilever connecting segment and the second cantilever connecting segment coincides with a center line of the other of the third cantilever connecting segment and the fourth cantilever connecting segment.

[0012] Optionally, in the fork-shaped structure, the inner side surface of the first cantilever connecting section is aligned with the inner side surface of the second cantilever connecting section;

[0013] The inner side surface of the third cantilever connecting section and the inner side surface of the fourth cantilever connecting section are aligned;

[0014] The inner side surface is a side close to the first hinge portion and the second hinge portion.

[0015] Optionally, in the fork-shaped structure, the first hinged portion and the second hinged portion are hingedly connected via a hinge structure;

[0016] The hinge structure includes a hinge rivet, a step washer and a flat push washer arranged between the first hinge part and the second hinge part;

[0017] A side of the first hinged portion of the first cantilever away from the second cantilever has a countersunk hole matching the step washer, and a side of the second hinged portion of the second cantilever away from the second cantilever has a countersunk hole matching the head of the hinged rivet.

[0018] The present invention further provides a push-out sliding support hinge, comprising a plurality of connecting beams and a fork-shaped structure connected between two adjacent connecting beams, wherein the fork-shaped structure is a fork-shaped structure as described in any one of the above items;

[0019] Among the two cantilever connection sections connected to the fork-shaped structure and the same connection beam, at least one end of the cantilever connection section is a sliding hinged end for sliding connection with the connection beam.

[0020] Optionally, in the above-mentioned push-out sliding support hinge, in the two cantilever connecting sections connected to the same connecting beam by the fork-shaped structure, the end of one cantilever connecting section is the sliding hinge end, and the end of the other cantilever connecting section is the positioning hinge end which is positionedly connected to the connecting beam.

[0021] Optionally, the push-out sliding support hinge further comprises:

[0022] A fixing plate, the fixing plate being arranged on the connecting beam; the fixing plate being a reinforcing plate having a convex hull structure; the eccentric portion of the eccentric connecting member being connected to the convex hull structure;

[0023] An eccentric connecting piece, wherein the positioning hinged end has a mounting hole, and the eccentric portion of the eccentric connecting piece passes through the mounting hole and is connected to the fixing plate; the positioning hinged end has a bending portion protruding toward the convex structure, and the mounting hole is located on the bending portion.

[0024] Optionally, in the above-mentioned push-out sliding support hinge, two groups of the fork-shaped structures are arranged between two adjacent connecting beams;

[0025] The sliding hinge end is the end of the cantilever connection section close to the middle of the connection beam;

[0026] The positioning hinged end is the end of the cantilever connecting section close to the end of the connecting beam.

[0027] Optionally, in the above-mentioned push-out sliding support hinge, a sliding block that slides along the connecting beam is provided on the sliding hinge end.

[0028] Optionally, in the above-mentioned push-out sliding support hinge, a side of the sliding surface of the sliding block facing the connecting beam has a friction pad;

[0029] The sliding surface of the connecting beam is a surface where the connecting beam and the sliding block are in sliding contact.

[0030] Optionally, the push-out sliding support hinge further comprises a limiting device disposed on the connecting beam for limiting the position of the sliding block;

[0031] The limiting device comprises: a positioning block fixedly connected to the connecting beam; and a buffer pad arranged on a side of the positioning block facing the sliding block;

[0032] The connecting beam is provided with a positioning portion, and the side of the positioning block facing away from the sliding block is in positioning contact with the positioning portion; the positioning portion and the connecting beam are an integrated structure;

[0033] The connecting beam is provided with a slide groove structure, and the sliding block slides along the slide groove structure;

[0034] The positioning portion is a protruding structure arranged in the sliding groove structure.

[0035] It can be seen from the above technical solutions that the fork-shaped structure provided by the present invention has a first cantilever and a second cantilever that are both curved arm structures, and in a closed state, the center line of one of the first cantilever connecting segment and the second cantilever connecting segment coincides with the center line of one of the third cantilever connecting segment and the fourth cantilever connecting segment, and the center line of the other of the first cantilever connecting segment and the second cantilever connecting segment coincides with the center line of the other of the third cantilever connecting segment and the fourth cantilever connecting segment, so that the first cantilever and the second cantilever form a structure similar to an H shape. The center line of one of the first cantilever connecting section and the second cantilever connecting section coincides with the center line of one of the third cantilever connecting section and the fourth cantilever connecting section, so as to be parallel to one of the two adjacent connecting beams in the push-out sliding support hinge; the center line of the other of the first cantilever connecting section and the second cantilever connecting section coincides with the center line of the other of the third cantilever connecting section and the fourth cantilever connecting section, so as to be parallel to the other of the two adjacent connecting beams in the push-out sliding support hinge. Since the center line of the first cantilever connecting segment is arranged parallel to the center line of the second cantilever connecting segment, and the center line of the third cantilever connecting segment is arranged parallel to the center line of the fourth cantilever connecting segment, therefore, when the fork-shaped structure is in a closed state, two adjacent connecting beams are parallel to each other, and two groups of cantilever connecting segments (one cantilever connecting segment in the first cantilever connecting segment and the second cantilever connecting segment and one cantilever connecting segment in the third cantilever connecting segment and the fourth cantilever connecting segment; another cantilever connecting segment in the first cantilever connecting segment and the second cantilever connecting segment and another cantilever connecting segment in the third cantilever connecting segment and the fourth cantilever connecting segment) are parallel to each other. After the push-out sliding support hinge is vertically installed, the force is distributed in a direction parallel to the connecting beam, so that the outward-opening product (window sash) located on one connecting beam has no outward force perpendicular to the connecting beam when in a closed state, and will not be affected by the dispersed force, thereby effectively avoiding the two connecting beams from generating a gap under the action of the dispersed force, thereby improving the stability and sealing performance of the push-out sliding support hinge.

[0036] The present invention also provides a push-out sliding support hinge having any of the fork-shaped structures described above. Since the fork-shaped structure has the above technical effects, the push-out sliding support hinge having the fork-shaped structure should also have the same technical effects, which will not be described one by one here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 A schematic diagram of the structure of a push-out sliding support hinge in an open state provided by an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of the exploded structure of a push-out sliding support hinge provided in an embodiment of the present invention;

[0040] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle K part;

[0041] Figure 4 A schematic diagram of the structure of a push-out sliding support hinge in a closed state provided by an embodiment of the present invention;

[0042] Figure 5 for Figure 4 A partial enlarged schematic diagram of part A;

[0043] Figure 6 A schematic diagram of the top view of the push-out sliding support hinge provided in an embodiment of the present invention;

[0044] Figure 7 for Figure 6 A partial enlarged schematic diagram of part B;

[0045] Figure 8 A schematic diagram of the front structure of a push-out sliding support hinge provided in an embodiment of the present invention;

[0046] Fig. 9 for Figure 8 A partial enlarged schematic diagram of part I;

[0047] Fig.10 for Figure 8 Schematic diagram of the cross-section structure along the DD plane;

[0048] Fig.11 for Fig.10 A partial enlarged schematic diagram of part C in the middle;

[0049] Fig.12 for Figure 2 A partial enlarged schematic diagram of the L part in the middle. DETAILED DESCRIPTION

[0050] The invention discloses a fork-shaped structure to improve stability and sealing performance. The invention also provides a push-out sliding support hinge.

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Please refer to Figure 1 , Figure 2 and Figure 4 The embodiment of the present invention provides a fork-shaped structure, which is applied to a push-out sliding support hinge, including a first cantilever 5 and a second cantilever 13, wherein the first cantilever 5 is hinged in the middle with the second cantilever 13, and the first cantilever 5 includes a first hinged portion located in the middle and a first cantilever connecting section and a second cantilever connecting section respectively arranged on both sides of the first hinged portion, and the center line of the first cantilever connecting section is arranged parallel to the center line of the second cantilever connecting section; the second cantilever 13 includes a second hinged portion located in the middle and a third cantilever connecting section and a fourth cantilever connecting section arranged on both sides of the second hinged portion. The center line of the third cantilever connecting segment is arranged in parallel with the center line of the fourth cantilever connecting segment; the first hinged portion is hinged with the second hinged portion; when the fork-shaped structure is in a closed state, the center line of one of the first cantilever connecting segment and the second cantilever connecting segment coincides with the center line of one of the third cantilever connecting segment and the fourth cantilever connecting segment, and the center line of the other cantilever connecting segment of the first cantilever connecting segment and the second cantilever connecting segment coincides with the center line of the other cantilever connecting segment of the third cantilever connecting segment and the fourth cantilever connecting segment.

[0053] In the fork-shaped structure provided by the embodiment of the present invention, both the first cantilever 5 and the second cantilever 13 are curved arm structures, and in the closed state, the center line of one of the first cantilever connecting section and the second cantilever connecting section coincides with the center line of one of the third cantilever connecting section and the fourth cantilever connecting section, and the center line of the other of the first cantilever connecting section and the second cantilever connecting section coincides with the center line of the other of the third cantilever connecting section and the fourth cantilever connecting section, so that the first cantilever 5 and the second cantilever 13 form a structure similar to an H shape. The center line of one of the first cantilever connecting section and the second cantilever connecting section coincides with the center line of one of the third cantilever connecting section and the fourth cantilever connecting section, so as to be parallel to one of the two adjacent connecting beams 10 in the push-out sliding support hinge; the center line of the other of the first cantilever connecting section and the second cantilever connecting section coincides with the center line of the other of the third cantilever connecting section and the fourth cantilever connecting section, so as to be parallel to the other of the two adjacent connecting beams 10 in the push-out sliding support hinge. Since the center line of the first cantilever connecting section is arranged parallel to the center line of the second cantilever connecting section, and the center line of the third cantilever connecting section is arranged parallel to the center line of the fourth cantilever connecting section, therefore, when the fork-shaped structure is in a closed state, the two adjacent connecting beams 10 are parallel to each other, and the two groups of cantilever connecting sections (one cantilever connecting section in the first cantilever connecting section and the second cantilever connecting section and one cantilever connecting section in the third cantilever connecting section and the fourth cantilever connecting section; another cantilever connecting section in the first cantilever connecting section and the second cantilever connecting section and another cantilever connecting section in the third cantilever connecting section and the fourth cantilever connecting section) are parallel to each other. After the push-out sliding support hinge is vertically installed, the force is distributed in a direction parallel to the connecting beam 10, so that the outward-opening product (window sash) located on one connecting beam 10 has no outward force perpendicular to the connecting beam 10 in the closed state, and will not be affected by the dispersed force, thereby effectively avoiding the two connecting beams 10 from generating a gap under the action of the dispersed force, thereby improving the stability and sealing performance of the push-out sliding support hinge. In order to ensure stability and sealing effect and reduce the weight of the fork structure, the inner side surface of the first cantilever connecting section is aligned with the inner side surface of the second cantilever connecting section; the inner side surface of the third cantilever connecting section is aligned with the inner side surface of the fourth cantilever connecting section; the inner side surface is the side close to the first hinge and the second hinge. Taking the example that in the closed state, the center line of the first cantilever connecting section coincides with the center line of the third cantilever connecting section, and the center line of the second cantilever connecting section coincides with the center line of the fourth cantilever connecting section, in the closed state, the inner side surface of the first cantilever connecting section is aligned with the inner side surface of the third cantilever connecting section, and the inner side surface of the second cantilever connecting section is aligned with the inner side surface of the fourth cantilever connecting section.The inner side surfaces of the first cantilever connecting segment, the inner side surfaces of the second cantilever connecting segment, the inner side surfaces of the third cantilever connecting segment and the inner side surfaces of the fourth cantilever connecting segment are all aligned, that is, the inner side surfaces of the first cantilever connecting segment, the inner side surfaces of the second cantilever connecting segment, the inner side surfaces of the third cantilever connecting segment and the inner side surfaces of the fourth cantilever connecting segment are located on the passing surface, so as to ensure the sealing effect and effectively reduce the material consumption of the cantilever, thereby reducing the weight of the fork structure.

[0054] like Figure 3 , Fig.10 and Fig.11 As shown, in order to reduce fatigue damage and increase service life, the first hinged part and the second hinged part are hinged by a hinge structure; the hinge structure includes a hinged rivet 4 and a step washer 2; the first hinged part of the first cantilever 5 has a countersunk hole matching the step washer 2 on one side away from the second cantilever 13, and the second hinged part of the second cantilever 13 has a countersunk hole matching the head of the hinged rivet 4 on one side away from the second cantilever 13. It can be understood that the overlap between the hinged rivet 4 and the step washer 2 is increased, thereby increasing the service life.

[0055] Preferably, the step washer 2 is a copper step washer or a PA6 step washer.

[0056] The hinge structure also includes a flat push washer 9 disposed between the first hinge part and the second hinge part. By adding the flat push washer 9, wear between the first hinge part and the second hinge part is avoided, thereby avoiding the shaking of the hinge rivet 4 and the step washer 2 after installation, further improving the service life.

[0057] Among them, the flat push gasket 9 is a wear-resistant flat push gasket, thereby increasing the wear resistance during movement and protecting the hinged rivet 4.

[0058] An embodiment of the present invention also provides a push-out sliding support hinge, comprising a plurality of connecting beams 10 and a fork-shaped structure connected between two adjacent connecting beams 10, wherein the fork-shaped structure is any of the fork-shaped structures described above; in the two cantilever connecting sections connected to the same connecting beam 10 by the fork-shaped structure, at least one end of the cantilever connecting section is a sliding hinge end for sliding connection with the connecting beam 10.

[0059] The push-out sliding support hinge of the embodiment of the present invention has the above-mentioned technical effects as the above-mentioned fork-shaped structure. The push-out sliding support hinge having the above-mentioned fork-shaped structure should also have the same technical effects, which will not be described one by one here.

[0060] In order to improve stability, in the two cantilever connecting sections connected to the same connecting beam 10 by the fork-shaped structure, the end of one cantilever connecting section is a sliding hinged end, and the end of the other cantilever connecting section is a positioning hinged end positionedly connected to the connecting beam 10.

[0061] The push-out sliding support hinge provided in the embodiment of the present invention further includes a fixing plate 3 and an eccentric connector 8. The fixing plate 3 is arranged on the connecting beam 10; the positioning hinge end has a mounting hole, and the eccentric part of the eccentric connector 8 passes through the mounting hole and is connected to the fixing plate 3. By providing the eccentric connector 8, a micro-adjustment function can be achieved, and the airtightness is further improved.

[0062] The eccentric connecting member 8 is an eccentric rivet or an eccentric bolt. It can also be other eccentric connecting structures, which will not be described in detail here.

[0063] like Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, the fixing plate 3 is a reinforcing plate with a convex structure; the eccentric portion of the eccentric connector 8 is connected to the convex structure. Through the above arrangement, the connection stability is effectively improved. In addition, in the embodiment where the positioning hinge end is the end of the cantilever connection section close to the end of the connecting beam 10, the end of the connecting beam 10 is provided with a fixing plate 3 that can play a reinforcing role, further improving the strength of the structure.

[0064] Preferably, the positioning hinge end has a bent portion protruding toward the convex structure, and the mounting hole is located on the bent portion. Figure 2 As shown, the positioning hinged ends of the first cantilever 5 and the second cantilever 13 both have a bending portion.

[0065] In order to ensure that the outward-opening product (window sash) can be pushed out in parallel, two sets of fork structures are arranged between two adjacent connecting beams 10; the sliding hinge end is the end of the cantilever connecting section near the middle of the connecting beam 10; the positioning hinge end is the end of the cantilever connecting section near the end of the connecting beam 10. That is, when the push-out sliding support hinge in this embodiment is subjected to thrust, pushing any position will disperse the force of the push-out sliding support hinge, and the above-mentioned two-end positioning structure can ensure parallel pushing.

[0066] like Figure 2 As shown, the two groups of fork structures in this embodiment are respectively one group of fork structures composed of the first cantilever 5 and the second cantilever 13 and another group of fork structures composed of the third cantilever 7 and the fourth cantilever 14. Both groups of fork structures are the fork structures provided in the above-mentioned embodiment of the present invention. That is, in the fork structure provided in the above-mentioned embodiment of the present invention, the third cantilever 7 is equivalent to the first cantilever 5, and the fourth cantilever 14 is equivalent to the second cantilever 13.

[0067] Preferably, the two groups of fork-shaped structures are symmetrically arranged with respect to a center line, and the center line is a middle line between the two groups of fork-shaped structures.

[0068] The sliding hinge end is provided with a slider 6 that slides along the connecting beam 10. The slider 6 is provided to facilitate the sliding effect. The slider 6 is preferably made of brass, and other materials may also be used, which are not specifically limited here and are within the scope of protection.

[0069] Furthermore, the sliding surface of the slider 6 facing the connecting beam 10 has a friction pad 11; the sliding surface of the connecting beam 10 is the surface where the connecting beam 10 and the slider 6 are in sliding contact. By providing the friction pad 11, the service life of the slider 6 and the connecting beam 10 is effectively improved.

[0070] The push-out sliding support hinge provided in the embodiment of the present invention also includes a limiting device provided on the connecting beam 10 for limiting the position of the sliding block 6. By providing the limiting device to limit the position of the sliding block 6 on the connecting beam 10, the spacing between the two connecting beams 10 is limited, thereby limiting the opening degree of the window sash.

[0071] In order to avoid the noise generated by opening the window, the limiting device includes a positioning block 12 and a buffer pad 1. The positioning block 12 is fixedly connected to the connecting beam 10; the buffer pad 1 is arranged on the side of the positioning block 12 facing the slider 6.

[0072] Preferably, the buffer pad 1 is a rubber buffer pad.

[0073] The buffer pad 1 may also be directly provided, that is, the buffer pad 1 is used as a limiting device.

[0074] like Fig.12 As shown, the buffer pad 1 and the positioning block 12 are matched with each other in a concave-convex manner. Through the above arrangement, the connection stability between the buffer pad 1 and the positioning block 12 is ensured.

[0075] The positioning block 12 is provided with a groove, and the groove has an opening structure on the side facing the slider 6. The buffer pad 1 is arranged in the groove, and one end of the buffer pad 1 extends out of the opening structure. Through the above arrangement, the slider 6 is ensured to be in effective contact with the buffer pad 1, thereby playing a buffering role.

[0076] The bottom surface of the groove has a through hole, and the buffer pad 1 has a convex structure matching the through hole.

[0077] The positioning block 12 is connected to the connecting beam 10 by bolts.

[0078] like Figure 8 and Fig. 9 As shown, in this embodiment, a positioning portion 101 is provided on the connecting beam 10, and the side of the positioning block 12 facing away from the slider 6 is in positioning contact with the positioning portion 101. Through the above arrangement, the movement of the limiting device is avoided, and the positioning effect is further ensured.

[0079] In order to simplify the structure, the connecting beam 10 has a slide groove structure, and the slider 6 slides along the slide groove structure; the positioning portion 101 is a protruding structure arranged in the slide groove structure. Among them, the connecting beam 10 can be a C-groove structure.

[0080] Preferably, the positioning portion 101 is an integrated structure with the connecting beam 10. Through the above arrangement, the number of parts is reduced, and the assembly of the push-out sliding support hinge is facilitated.

[0081] Furthermore, the first cantilever connecting section, the second cantilever connecting section, the third cantilever connecting section, the fourth cantilever connecting section and the connecting beam 10 have the same width. Through the above arrangement, neat alignment in the closed state is ensured, and the compactness of the structure is effectively improved. Among them, the above width direction is Figure 4 The direction of up and down.

[0082] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0083] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fork-shaped structure, applied to a push-out sliding support hinge, comprising a first cantilever (5) and a second cantilever (13), wherein the first cantilever (5) and the second cantilever (13) are hinged in the middle, characterized in that: The first cantilever (5) comprises a first hinged portion located in the middle and a first cantilever connecting section and a second cantilever connecting section respectively arranged on both sides of the first hinged portion, and the center line of the first cantilever connecting section is arranged parallel to the center line of the second cantilever connecting section; The second cantilever (13) comprises a second hinged portion located in the middle and a third cantilever connecting section and a fourth cantilever connecting section arranged on both sides of the second hinged portion, wherein the center line of the third cantilever connecting section is arranged parallel to the center line of the fourth cantilever connecting section; The first hinged portion is hinged to the second hinged portion; When the fork-shaped structure is in a closed state, a center line of one of the first cantilever connecting segment and the second cantilever connecting segment coincides with a center line of one of the third cantilever connecting segment and the fourth cantilever connecting segment, and a center line of the other of the first cantilever connecting segment and the second cantilever connecting segment coincides with a center line of the other of the third cantilever connecting segment and the fourth cantilever connecting segment.

2. The fork-shaped structure according to claim 1, characterized in that: The inner side surface of the first cantilever connecting section is aligned with the inner side surface of the second cantilever connecting section; The inner side surface of the third cantilever connecting section and the inner side surface of the fourth cantilever connecting section are aligned; The inner side surface is a side close to the first hinge portion and the second hinge portion.

3. The fork-shaped structure according to claim 1 or 2, characterized in that: The first hinged portion and the second hinged portion are hingedly connected via a hinge structure; The hinge structure comprises a hinge rivet (4), a step washer (2) and a flat push washer (9) arranged between the first hinge part and the second hinge part; The first hinged portion of the first cantilever (5) has a countersunk hole matching the step washer (2) on one side away from the second cantilever (13), and the second hinged portion of the second cantilever (13) has a countersunk hole matching the head of the hinged rivet (4) on one side away from the second cantilever (13).

4. A push-out sliding support hinge, comprising a plurality of connecting beams (10) and a fork-shaped structure connected between two adjacent connecting beams (10), characterized in that: The fork-shaped structure is a fork-shaped structure as described in any one of claims 1 to 3; Among the two cantilever connection sections connected to the fork-shaped structure and the same connection beam (10), the end of at least one cantilever connection section is a sliding hinged end used for sliding connection with the connection beam (10).

5. The push-out sliding support hinge according to claim 4, characterized in that: In the two cantilever connection sections connected to the fork-shaped structure and the same connection beam (10), the end of one cantilever connection section is the sliding hinged end, and the end of the other cantilever connection section is a positioning hinged end that is positionally connected to the connection beam (10).

6. The push-out sliding support hinge according to claim 5, characterized in that: Also includes: A fixing plate (3), the fixing plate (3) being arranged on the connecting beam (10); the fixing plate (3) being a reinforcing plate having a convex structure; An eccentric connecting piece (8), wherein the positioning hinged end has a mounting hole, the eccentric portion of the eccentric connecting piece (8) passes through the mounting hole and is connected to the fixing plate (3); the eccentric portion of the eccentric connecting piece (8) is connected to the convex bulge structure; the positioning hinged end has a bent portion protruding toward the convex bulge structure, and the mounting hole is located on the bent portion.

7. The push-out sliding support hinge according to claim 5, characterized in that: Two groups of the fork-shaped structures are arranged between two adjacent connecting beams (10); The sliding hinged end is the end of the cantilever connection section close to the middle of the connection beam (10); The positioning hinged end is the end of the cantilever connection section close to the end of the connection beam (10).

8. The push-out sliding support hinge according to claim 4, characterized in that: A sliding block (6) is provided on the sliding hinge end and slides along the connecting beam (10).

9. The push-out sliding support hinge according to claim 8, characterized in that: The sliding surface of the sliding block (6) facing the connecting beam (10) is provided with a friction pad (11); The sliding surface of the connecting beam (10) is a surface where the connecting beam (10) and the sliding block (6) are in sliding contact.

10. The push-out sliding support hinge according to claim 8, characterized in that: It also includes a limiting device arranged on the connecting beam (10) and used for limiting the position of the sliding block (6); The limiting device comprises: a positioning block (12) fixedly connected to the connecting beam (10); and a buffer pad (1) arranged on a side of the positioning block (12) facing the sliding block (6); The connecting beam (10) is provided with a positioning portion (101), and the side of the positioning block (12) facing away from the sliding block (6) is in positioning contact with the positioning portion (101); the positioning portion (101) and the connecting beam (10) are an integrated structure; The connecting beam (10) has a slide groove structure, and the sliding block (6) slides along the slide groove structure; The positioning portion (101) is a protruding structure arranged in the sliding groove structure.

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