Hinge and T-shaped door

Abstract

The utility model discloses a hinge and discloses a T-shaped door, the hinge comprises a first hinge body assembly, a second hinge body assembly, a first connecting piece and a second connecting piece, the first connecting piece comprises a first connecting arm, a first hinging part and a second connecting arm which are connected in sequence, the end, away from the first hinge part, of the first connecting arm is hinged to the first hinge body assembly, the second connecting arm is slidably connected with the second hinge body assembly, the second connecting piece comprises a third connecting arm, a second hinge part and a fourth connecting arm which are sequentially connected, and the first hinge part is hinged to the second hinge part. The end, away from the second hinge part, of the third connecting arm is hinged to the second hinge body assembly, the fourth connecting arm is slidably connected with the first hinge body assembly, and when the first hinge body assembly and the second hinge body assembly are located at the maximum unfolding angle, the first connecting arm abuts against the fourth connecting arm, and the second connecting arm abuts against the third connecting arm; deformation of the first connecting piece and the second connecting piece can be reduced, and therefore the service life of the hinge is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge technical field, especially hinge and T type door. BACKGROUND

[0002] With people's aesthetic requirement of home decoration is harsh, for every home decoration detail requires visual aesthetic, for example the home decoration aesthetic of door. The traditional door is mainly flat mouth door, and the edge of flat mouth door is flat, and the door leaf is in the inside of the door pocket, and since the hinge needs to be placed, the gap between the flat mouth door and the door frame is more than 3mm, so it is inevitable to cause the defects of poor sound insulation effect and poor airtightness. In order to meet the harsh requirements of people on sound insulation and airtightness of entrance door or bedroom door, T type door structure emerges as the times require, and the T type door is named because its edge is like the letter T, and the protruding part of the door leaf is pressed on the door pocket, and the engagement between the door leaf and the door frame is very tight, and the sound insulation effect is higher than that of the flat mouth door.

[0003] The existing hinge applied to the T type door generally comprises a first page body assembly, a second page body assembly, a first connecting piece and a second connecting piece, the first page body assembly is used for being connected with the door frame, the second page body assembly is used for being connected with the T type door, the middle position of the first connecting piece is hinged with the middle position of the second connecting piece, one end of the first connecting piece is hinged with the first page body assembly, the other end of the first connecting piece is slidingly connected with the second page body assembly, one end of the second connecting piece is hinged with the second page body assembly, and the other end of the second connecting piece is slidingly connected with the first page body assembly, so that the first page body assembly makes eccentric motion relative to the second page body assembly, which can not only ensure that the T type door can be smoothly opened and closed, but also can reduce the gap between the T type door and the door frame. Since the first connecting piece and the second connecting piece are easy to be damaged during use of the hinge, the service life of the hinge is reduced. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving one of the technical problems in the prior art at least. Therefore, the utility model provides a hinge, which can improve the service life of the hinge.

[0005] The utility model further provides a T type door with the hinge.

[0006] The hinge according to the first aspect embodiment of the utility model comprises:

[0007] The first page body assembly is used for being connected with the door frame;

[0008] The second page body assembly is used for being connected with the door;

[0009] The first connecting piece comprises a first connecting arm, a first hinge part and a second connecting arm connected in sequence, one end of the first connecting arm away from the first hinge part is hinged with the first page body assembly, the second connecting arm is slidingly connected with the second page body assembly, the second connecting piece comprises a third connecting arm, a second hinge part and a fourth connecting arm connected in sequence, the first hinge part is hinged with the second hinge part, one end of the third connecting arm away from the second hinge part is hinged with the second page body assembly, the fourth connecting arm is slidingly connected with the first page body assembly, so that the hinge has a closed state and an unfolded state.

[0010] When the first page body assembly and the second page body assembly are at the maximum unfolding angle, the first connecting arm abuts against the fourth connecting arm, and the second connecting arm abuts against the third connecting arm.

[0011] The hinge according to the first aspect of the present application has at least the following beneficial effects:

[0012] When the hinge is in the closed state, the distance between one end of the first connecting arm away from the first hinge part and one end of the fourth connecting arm away from the second hinge part is maximum, and the distance between one end of the second connecting arm away from the second hinge part and one end of the third connecting arm away from the second hinge part is maximum, in the process of switching the hinge from the closed state to the unfolded state, the distance between one end of the first connecting arm away from the first hinge part and one end of the fourth connecting arm away from the second hinge part gradually decreases, and the distance between one end of the second connecting arm away from the second hinge part and one end of the third connecting arm away from the second hinge part gradually decreases, when the hinge is at the maximum unfolding angle, the first connecting arm abuts against the fourth connecting arm, and the second connecting arm abuts against the third connecting arm, the fourth connecting arm can provide support force for the first connecting arm, and the second connecting arm can provide support force for the third connecting arm, which can reduce the deformation of the first connecting piece and the second connecting piece, thereby improving the service life of the hinge.

[0013] According to some embodiments of the present application, when the hinge is switched from the unfolded state to the closed state, the distance between one end of the third connecting arm away from the second hinge part and one end of the first connecting arm away from the first hinge part gradually increases.

[0014] According to some embodiments of the present application, the first connecting arm, the first hinge part and the second connecting arm are of an integral structure; and / or,

[0015] The third connecting arm, the second hinge part and the fourth connecting arm are of an integral structure.

[0016] According to some embodiments of the present application, the first page body assembly is provided with a first mounting slot, a side wall of the first mounting slot is provided with a first sliding groove, and two sides of an end of the second connecting arm away from the first hinged part are respectively accommodated in the corresponding first sliding grooves; and / or,

[0017] The second page body assembly is provided with a second mounting slot, a side wall of the second mounting slot is provided with a second sliding groove, and two sides of an end of the fourth connecting arm away from the second hinged part are respectively accommodated in the corresponding second sliding grooves.

[0018] According to some embodiments of the present application, two sides of an end of the second connecting arm away from the first hinged part are respectively provided with first wear-resistant parts, the first wear-resistant parts are accommodated in the corresponding first sliding grooves and abut against the side walls of the first sliding grooves; and / or,

[0019] Two sides of an end of the fourth connecting arm away from the second hinged part are respectively provided with second wear-resistant parts, the second wear-resistant parts are accommodated in the corresponding second sliding grooves and abut against the side walls of the second sliding grooves.

[0020] According to some embodiments of the present application, the second page body assembly comprises a connecting seat and two connecting ears, an end of the third connecting arm away from the second hinged part is hinged with the connecting seat, the second connecting arm is slidingly connected with the connecting seat, the connecting ears are used for connecting with a door, one of the two connecting ears is arranged on one side of the connecting seat along an axial direction of the second hinged part, and the other is arranged on the other side of the connecting seat along the axial direction of the second hinged part, an adjusting bolt is arranged between the connecting seat and the connecting ear, and the adjusting bolt is used for adjusting the movement of the connecting seat along the axial direction of the adjusting bolt.

[0021] According to some embodiments of the present application, the connecting ear comprises a connecting plate and a connecting block arranged on the connecting plate, the connecting plate and the connecting block enclose a containing groove, opposite sides of the connecting seat are respectively provided with connecting protrusions along the axial direction of the second hinged part, the connecting protrusions are accommodated in the corresponding containing grooves, and the adjusting bolt is sequentially arranged in the connecting plate, the connecting protrusion and the connecting block.

[0022] According to some embodiments of the present application, the adjusting bolt comprises a first abutting part, a second abutting part and a first rod part, the first abutting part is arranged at one end of the first rod part, the second abutting part is arranged at the other end of the first rod part, the first abutting part abuts against the connecting plate, the second abutting part abuts against the connecting block, and the first rod part is threadedly connected with the connecting protrusion.

[0023] According to some embodiments of the present application, the second page body assembly further comprises a locking bolt, the locking bolt is arranged between the connecting lug and the connecting block, and the locking bolt is used for locking the connecting lug and the connecting block.

[0024] According to the T-shaped door of the second aspect of the present application, at least the following beneficial effects are achieved:

[0025] According to the T-shaped door of the second aspect of the present application, at least the following beneficial effects are achieved:

[0026] When the hinge is in the closed state, the distance between the end of the first connecting arm away from the first hinge part and the end of the fourth connecting arm away from the second hinge part is maximum, and the distance between the end of the second connecting arm away from the second hinge part and the end of the third connecting arm away from the second hinge part is maximum. In the process of switching the hinge from the closed state to the unfolded state, the distance between the end of the first connecting arm away from the first hinge part and the end of the fourth connecting arm away from the second hinge part gradually decreases, and the distance between the end of the second connecting arm away from the second hinge part and the end of the third connecting arm away from the second hinge part gradually decreases. When the hinge is in the maximum unfolding angle, the first connecting arm and the fourth connecting arm abut, the second connecting arm and the third connecting arm abut, the fourth connecting arm can provide support force for the first connecting arm, and the second connecting arm can provide support force for the third connecting arm, which can reduce the deformation of the first connecting piece and the second connecting piece, thereby improving the service life of the hinge.

[0027] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0029] Figure 1 The figure is a structural schematic diagram of the hinge of the embodiment of the present application, and the hinge is in the unfolded state;

[0030] Figure 2 The figure is an exploded schematic diagram of the hinge of the embodiment of the present application;

[0031] Figure 3 The figure is a top view of the hinge of the embodiment of the present application; Figure 1 The figure is a sectional view of the line A-A of the hinge of the embodiment of the present application;

[0032] Figure 4 The figure is a sectional view of the line A-A of the hinge of the embodiment of the present application; Figure 1

[0033] Figure 5 Figure 4 ​​A magnified view of part D in the middle;

[0034] Figure 6 for Figure 1 Sectional view of the middle BB line;

[0035] Figure 7 for Figure 1 A cross-sectional view of the CC line;

[0036] Figure 8 This is a schematic diagram of the structure of the first and second connecting members according to an embodiment of the present utility model;

[0037] Figure 9 This is a schematic diagram of the hinge structure according to an embodiment of the present invention, in which the hinge is in a closed state;

[0038] Figure 10 for Figure 9 Side view;

[0039] Figure 11 for Figure 10 A cross-sectional view of the EE line.

[0040] Figure label:

[0041] First page assembly 100, first mounting groove 110, first sliding groove 120, second page assembly 200, second mounting groove 201, second sliding groove 202, connecting seat 210, connecting protrusion 211, connecting ear 220, connecting plate 221, connecting block 222, receiving groove 223, first connector 300, first connecting arm 310, first hinge part 320, second connecting arm 330, first wear-resistant part 340, second connector 400, third connecting arm 410, second hinge part 420, fourth connecting arm 430, second wear-resistant part 440, adjusting bolt 500, first abutment part 510, second abutment part 520, first rod part 530, locking bolt 600, head 610, second rod part 620. Detailed Implementation

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0043] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0045] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0046] In related technologies, existing hinges used in T-shaped doors generally include a first leaf assembly, a second leaf assembly, a first connector, and a second connector. The first leaf assembly is used to connect to the door frame, and the second leaf assembly is used to connect to the T-shaped door. The middle positions of the first and second connectors are hinged together. One end of the first connector is hinged to the first leaf assembly, and the other end is slidably connected to the second leaf assembly. One end of the second connector is hinged to the second leaf assembly, and the other end is slidably connected to the first leaf assembly, allowing the first leaf assembly to move eccentrically relative to the second leaf assembly. This ensures smooth opening and closing of the T-shaped door and reduces the gap between the T-shaped door and the door frame. However, because the first and second connectors are prone to damage during use, the lifespan of the hinge is reduced.

[0047] Reference Figures 1 to 4 and combined Figures 9 to 11According to a first aspect embodiment of the present invention, a hinge includes a first page assembly 100, a second page assembly 200, a first connector 300, and a second connector 400. The first page assembly 100 is used to connect with a door frame, and the second page assembly 200 is used to connect with a door. The first connector 300 includes a first connecting arm 310, a first hinge portion 320, and a second connecting arm 330 connected in sequence. One end of the first connecting arm 310 away from the first hinge portion 320 is hinged to the first page assembly 100, and the second connecting arm 330 is slidably connected to the second page assembly 200. The second connector 400 includes a third connecting arm 410, a second hinge portion 420, and a fourth connecting arm 430 connected in sequence. The first hinge portion 320... The hinge is hinged to the second hinge portion 420, and the end of the third connecting arm 410 away from the second hinge portion 420 is hinged to the second page assembly 200. The fourth connecting arm 430 is slidably connected to the first page assembly 100 so that the hinge has a closed state and an open state. When the first page assembly 100 and the second page assembly 200 are at their maximum open angle, the first connecting arm 310 abuts against the fourth connecting arm 430, and the second connecting arm 330 abuts against the third connecting arm 410. In this way, the fourth connecting arm 430 can provide support for the first connecting arm 310, and the second connecting arm 330 can provide support for the third connecting arm. This can reduce the deformation of the first connecting member 300 and the second connecting member 400, thereby improving the service life of the hinge.

[0048] For example, when the hinge is in the closed state, the distance between the end of the first connecting arm 310 away from the first hinge portion 320 and the end of the fourth connecting arm 430 away from the second hinge portion 420 is the largest, and the distance between the end of the second connecting arm 330 away from the second hinge portion 420 and the end of the third connecting arm 410 away from the second hinge portion 420 is the largest. As the hinge switches from the closed state to the open state, the distance between the end of the first connecting arm 310 away from the first hinge portion 320 and the end of the fourth connecting arm 430 away from the second hinge portion 420 gradually decreases. The distance between the end of the second connecting arm 330 away from the second hinge portion 420 and the end of the third connecting arm 410 away from the second hinge portion 420 gradually decreases. When the hinge is at its maximum unfolding angle, the first connecting arm 310 abuts against the fourth connecting arm 430, and the second connecting arm 330 abuts against the third connecting arm 410. The fourth connecting arm 430 can provide support for the first connecting arm 310, and the second connecting arm 330 can provide support for the third connecting arm. This can reduce the deformation of the first connecting member 300 and the second connecting member 400, thereby improving the service life of the hinge.

[0049] It should be noted that when the T-shaped door is closed, the hinges are in the closed state; when the T-shaped door is open, the hinges are in the extended state; and when the T-shaped door is at its maximum opening angle, the hinges are at their maximum extension angle. No restrictions are imposed here.

[0050] Doping Figure 6 , Figure 7 and Figure 11 In some embodiments of this utility model, when the hinge switches from the unfolded state to the closed state, the distance between the end of the third connecting arm 410 away from the second hinge portion 420 and the end of the first connecting arm 310 away from the first hinge portion 320 gradually increases, so that the second page assembly 200 can make an eccentric movement relative to the first page assembly 100, which can reduce the gap between the T-shaped door and the door frame, and ensure that the T-shaped door does not interfere with the door frame, so as to open the T-shaped door smoothly.

[0051] For example, when the hinge switches from the closed state to the open state, the distance between the end of the first connecting arm 310 away from the first hinge portion 320 and the end of the third connecting arm 410 away from the second hinge portion 420 gradually increases. The end of the third connecting arm 410 away from the second hinge portion 420 rotates eccentrically relative to the end of the first connecting arm 310 away from the first hinge portion 320. This allows the edge of the T-shaped door near the door frame to move towards the door frame first, and then rotate relative to the door frame when the T-shaped door is opened. This reduces the gap between the T-shaped door and the door frame and ensures that the T-shaped door does not interfere with the door frame, so that the T-shaped door can be opened smoothly.

[0052] Reference Figure 11 In some embodiments of this utility model, the first connecting arm 310, the first hinge part 320 and the second connecting arm 330 are an integral structure, which can reduce the number of molds, thereby reducing the production and manufacturing cost of the molds and thus reducing the production and manufacturing cost of the first connecting part 300.

[0053] For example, the first connecting arm 310, the first hinge part 320 and the second connecting arm 330 can be integrally formed by die casting, which can reduce the number of molds, thereby reducing the production and manufacturing cost of the molds and thus reducing the production and manufacturing cost of the first connecting part 300.

[0054] As another implementation, the first connecting arm 310, the first hinge portion 320 and the second connecting arm 330 can also be fixedly connected by welding, wherein the welding method includes, but is not limited to, resistance welding, laser welding or ultrasonic welding.

[0055] In some embodiments of this utility model, the third connecting arm 410, the second hinge part 420 and the fourth connecting arm 430 are an integral structure, which can reduce the number of molds, thereby reducing the production and manufacturing cost of the molds and thus reducing the production and manufacturing cost of the first connecting part 300.

[0056] For example, the third connecting arm 410, the second hinge part 420 and the fourth connecting arm 430 can be integrally formed by die casting, which can reduce the number of molds and reduce the production cost of the molds, thereby reducing the production cost of the first connecting part 300.

[0057] As another implementation, the third connecting arm 410, the second hinge portion 420 and the fourth connecting arm 430 can also be fixedly connected by welding, wherein the welding method includes, but is not limited to, resistance welding, laser welding or ultrasonic welding.

[0058] Reference Figure 1 In some embodiments of this utility model, the first page assembly 100 is provided with a first mounting groove 110, and the side wall of the first mounting groove 110 is provided with a first sliding groove 120. The two sides of the end of the second connecting arm 330 away from the first hinge portion 320 are respectively accommodated in the corresponding first sliding groove 120, which can guide the end of the second connecting arm 330 away from the first hinge portion 320 so that the end of the second connecting arm 330 away from the first hinge portion 320 can move in a preset direction, thereby improving the rotational stability of the second connecting member 400.

[0059] In some embodiments of this utility model, the second page assembly 200 is provided with a second mounting groove 201, and the side wall of the second mounting groove 201 is provided with a second sliding groove 202. The two sides of the end of the fourth connecting arm 430 away from the second hinge portion 420 are respectively accommodated in the corresponding second sliding groove 202, which can guide the end of the fourth connecting arm 430 away from the second hinge portion 420 so that the end of the fourth connecting arm 430 away from the second hinge portion 420 can move in a preset direction, thereby improving the rotational stability of the second connecting member 400.

[0060] Reference Figure 8 In some embodiments of this utility model, the second connecting arm 330 is provided with first wear-resistant parts 340 on both sides of the end away from the first hinge part 320. The first wear-resistant parts 340 are housed in the corresponding first slide groove 120 and abut against the side wall of the first slide groove 120, which can improve the service life of the second connecting arm 330, thereby improving the service life of the hinge.

[0061] It should be noted that the first wear-resistant part 340 is configured as a rubber sleeve, and the second connecting arm 330 is provided with a first connecting shaft at the end away from the first hinge part 320. The rubber sleeve is sleeved on one end of the first connecting shaft. The rubber sleeve has good wear resistance and can improve the service life of the second connecting arm 330, thereby improving the service life of the hinge.

[0062] In some embodiments of this utility model, the two sides of the end of the fourth connecting arm 430 away from the second hinge portion 420 are respectively provided in the second wear-resistant portion 440. The second wear-resistant portion 440 is housed in the corresponding second slide groove 202 and abuts against the side wall of the second slide groove 202, which can improve the service life of the second connecting arm 330, thereby improving the service life of the hinge.

[0063] It should be noted that the second wear-resistant part 440 is configured as a rubber sleeve, and the end of the fourth connecting arm 430 away from the first hinge part 320 is provided with a second connecting shaft. The rubber sleeve is sleeved on one end of the first connecting shaft. The rubber sleeve has good wear resistance and can improve the service life of the second connecting arm 330, thereby improving the service life of the hinge.

[0064] Understandably, existing T-shaped doors are generally connected to the door frame by hinges. Due to certain errors in the installation of the hinges, the gap between the T-shaped door and the door frame is too large, affecting the normal use of the door.

[0065] Reference Figure 5 In some embodiments of this utility model, the second page assembly 200 includes a connecting seat 210 and two connecting ears 220. The end of the third connecting arm 410 away from the second hinge portion 420 is hinged to the connecting seat 210. The second connecting arm 330 is slidably connected to the connecting seat 210. The connecting ears 220 are used to connect with the door. One of the two connecting ears 220 is located on one side of the connecting seat 210 along the axial direction of the second hinge portion 420, and the other is located on the other side of the hinge axis of the connecting seat 210 along the axial direction of the second hinge portion 420. An adjusting bolt 500 is provided between the connecting seat 210 and the connecting ears 220. The adjusting bolt 500 is used to adjust the movement of the connecting seat 210 along the axial direction of the adjusting bolt 500. The adjusting bolt 500 can adjust the relative position of the connecting seat 210 and the connecting ears 220 to reduce the gap between the T-shaped door and the door frame.

[0066] Reference Figure 5In some embodiments of this utility model, the connecting ear 220 includes a connecting plate 221 and a connecting block 222 disposed on the connecting plate 221. The connecting plate 221 and the connecting block 222 surround to form a receiving groove 223. Along the axial direction of the second hinge portion 420, the opposite sides of the connecting seat 210 are respectively disposed on the connecting protrusion 211. The connecting protrusion 211 is accommodated in the corresponding receiving groove 223. The adjusting bolt 500 is sequentially inserted through the connecting plate 221, the connecting protrusion 211 and the connecting block 222, which can hide the connection position between the connecting protrusion 211 and the adjusting bolt 500, so as to avoid the connection position between the adjusting bolt 500 and the connecting protrusion 211 being exposed to the outside, thereby improving the service life of the hinge.

[0067] For example, the connecting protrusion 211 is provided in the threaded hole, which is threadedly engaged with the adjusting bolt 500. Along the axial direction of the adjusting bolt 500, the connecting protrusion 211 is located between the connecting plate 221 and the connecting block 222. By inserting the connecting protrusion 211 into the receiving groove 223, the connection position between the connecting protrusion 211 and the adjusting bolt 500 can be hidden, so as to avoid the connection position between the adjusting bolt 500 and the connecting protrusion 211 being exposed to the outside, thereby improving the service life of the hinge.

[0068] It should be noted that the connecting plate 221 is connected to the T-shaped door by bolts, which will not be described in detail here.

[0069] Reference Figure 5 In some embodiments of this utility model, the adjusting bolt 500 includes a first abutting part 510, a second abutting part 520, and a first rod part 530. The first abutting part 510 is disposed at one end of the first rod part 530, and the second abutting part 520 is disposed at the other end of the first rod part 530. The first abutting part 510 abuts against the connecting plate 221, the second abutting part 520 abuts against the connecting block 222, and the first rod part 530 is threadedly connected to the connecting protrusion 211, which facilitates the assembly of the adjusting bolt 500.

[0070] For example, the first abutment 510 is the nut of the adjusting bolt 500. The end of the first rod 530 away from the first abutment 510 is riveted by a riveting device to form the second abutment 520. The connecting ear 220 is clamped between the first abutment 510 and the second abutment 520, so that the adjusting bolt 500 cannot move relative to the connecting ear 220. The operation is simple, convenient and quick, and it is easy to assemble the adjusting bolt 500.

[0071] As another implementation, a retaining ring can be provided at the end of the first rod portion 530 away from the first abutment portion 510. The retaining ring abuts against the connecting block 222 and can also restrict the adjustment bolt 500 from moving along its axial direction. This is not a limitation here.

[0072] In some embodiments of this utility model, the first abutting part 510, the second abutting part 520 and the first rod part 530 are an integral structure, which can improve the structural strength of the adjusting bolt 500 and thus improve the service life of the adjusting bolt 500.

[0073] In some embodiments of this utility model, the connecting plate 221 and the connecting block 222 are an integral structure, which can reduce the number of molds, thereby reducing the production and manufacturing cost of the molds and thus reducing the production and manufacturing cost of the hinge.

[0074] For example, the connecting plate 221 and the connecting block 222 can be integrally formed by die casting, which can reduce the number of molds, thereby reducing the production and manufacturing cost of the molds and thus reducing the production and manufacturing cost of the hinge.

[0075] As another implementation, the connecting plate 221 and the connecting block 222 can also be connected and fixed by welding. The welding method includes, but is not limited to, resistance welding, laser welding or ultrasonic welding, which will not be described in detail here.

[0076] Reference Figure 5 In some embodiments of this utility model, the second page assembly 200 further includes a locking bolt 600, which is disposed between the connecting ear 220 and the connecting block 222. The locking bolt 600 is used to lock the connecting ear 220 and the connecting block 222. The locking bolt 600 can assist the adjusting bolt 500 in bearing the weight of the door body, so as to avoid excessive force on the adjusting bolt 500, thereby improving the service life of the hinge.

[0077] For example, when it is necessary to adjust the relative position between the door frame and the door body, the connecting ear 220 and the connecting seat 210 can be unlocked by the locking device. Then, the user can turn the adjusting bolt 500 to make the connecting seat 210 move along the axial direction of the adjusting bolt 500, thereby adjusting the gap between the door frame and the door body to meet the preset requirements. After the door body is adjusted, the connecting ear 220 and the connecting seat 210 are locked by the locking device. The locking device can help the adjusting bolt 500 bear the weight of the door body to avoid excessive force on the adjusting bolt 500, thereby improving the service life of the hinge.

[0078] In some embodiments of this utility model, the locking member includes a head 610 and a second rod 620. The head 610 is disposed at one end of the second rod 620. The second rod 620 is threadedly engaged with the connecting protrusion 211, and the end of the second rod 620 away from the head 610 is threadedly engaged with the connecting block 222. The head 610 abuts against the connecting plate 221, which facilitates unlocking or locking the connecting ear 220.

[0079] For example, the locking element is a bolt. When the locking element unlocks the connecting lug 220 and the connecting protrusion 211, the head 610 separates from the connecting plate 221, and the end of the second rod 620 away from the head 610 is not threadedly connected to the connecting block 222, so that the adjusting bolt 500 can drive the connecting protrusion 211 to move in the receiving groove 223. When the locking element locks the connecting lug 220 and the connecting protrusion 211, the head 610 abuts against the connecting plate 221, and the end of the second rod 620 away from the head 610 is threadedly connected to the connecting block 222, so that the adjusting bolt 500 cannot drive the connecting protrusion 211 to move in the receiving groove 223, which facilitates unlocking or locking the connecting lug 220.

[0080] Reference Figure 1 , Figure 2 According to the second aspect embodiment of the present invention, the T-shaped door includes the hinge of the first aspect embodiment of the present invention. The fourth connecting arm 430 can provide support for the first connecting arm 310, and the second connecting arm 330 can provide support for the third connecting arm. This can reduce the deformation of the first connecting member 300 and the second connecting member 400, thereby improving the service life of the hinge.

[0081] For example, when the hinge is in the closed state, the distance between the end of the first connecting arm 310 away from the first hinge portion 320 and the end of the fourth connecting arm 430 away from the second hinge portion 420 is the largest, and the distance between the end of the second connecting arm 330 away from the second hinge portion 420 and the end of the third connecting arm 410 away from the second hinge portion 420 is the largest. As the hinge switches from the closed state to the open state, the distance between the end of the first connecting arm 310 away from the first hinge portion 320 and the end of the fourth connecting arm 430 away from the second hinge portion 420 gradually decreases. The distance between the end of the second connecting arm 330 away from the second hinge portion 420 and the end of the third connecting arm 410 away from the second hinge portion 420 gradually decreases. When the hinge is at its maximum unfolding angle, the first connecting arm 310 abuts against the fourth connecting arm 430, and the second connecting arm 330 abuts against the third connecting arm 410. The fourth connecting arm 430 can provide support for the first connecting arm 310, and the second connecting arm 330 can provide support for the third connecting arm. This can reduce the deformation of the first connecting member 300 and the second connecting member 400, thereby improving the service life of the hinge.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A hinge, characterized in that The hinge comprises: a first leaf assembly (100) configured to be connected with a door frame; a second leaf assembly (200) configured to be connected with a door; a first connecting member (300) and a second connecting member (400), the first connecting member (300) comprises a first connecting arm (310), a first hinge part (320) and a second connecting arm (330) connected in sequence, one end of the first connecting arm (310) away from the first hinge part (320) is hinged with the first leaf assembly (100), the second connecting arm (330) is slidingly connected with the second leaf assembly (200), the second connecting member (400) comprises a third connecting arm (410), a second hinge part (420) and a fourth connecting arm (430) connected in sequence, the first hinge part (320) is hinged with the second hinge part (420), one end of the third connecting arm (410) away from the second hinge part (420) is hinged with the second leaf assembly (200), the fourth connecting arm (430) is slidingly connected with the first leaf assembly (100), so that the hinge has a closed state and an unfolded state; wherein, when the first leaf assembly (100) and the second leaf assembly (200) are at a maximum unfolding angle, the first connecting arm (310) abuts against the fourth connecting arm (430), and the second connecting arm (330) abuts against the third connecting arm (410).

2. The hinge according to claim 1, wherein When the hinge is switched from the unfolded state to the closed state, the distance between one end of the third connecting arm (410) away from the second hinge part (420) and one end of the first connecting arm (310) away from the first hinge part (320) gradually increases.

3. The hinge of claim 1, wherein The first connecting arm (310), the first hinge part (320) and the second connecting arm (330) are of an integral structure; and / or, The third connecting arm (410), the second hinge part (420) and the fourth connecting arm (430) are of an integral structure.

4. The hinge of claim 1, wherein The first leaf assembly (100) is provided with a first mounting slot (110), a side wall of the first mounting slot (110) is provided with a first sliding groove (120), and two sides of one end of the second connecting arm (330) away from the first hinge part (320) are respectively accommodated in corresponding first sliding grooves (120); and / or, The second leaf assembly (200) is provided with a second mounting slot (201), a side wall of the second mounting slot (201) is provided with a second sliding groove (202), and two sides of one end of the fourth connecting arm (430) away from the second hinge part (420) are respectively accommodated in corresponding second sliding grooves (202).

5. The hinge of claim 4, wherein Two sides of one end of the second connecting arm (330) away from the first hinge part (320) are respectively provided with first wear-resistant parts (340), the first wear-resistant parts (340) are accommodated in corresponding first sliding grooves (120) and abut against side walls of the first sliding grooves (120); and / or, The fourth connecting arm (430) is provided with a second wear-resistant part (440) on both sides of the end away from the second hinge part (420), and the second wear-resistant part (440) is accommodated in the corresponding second sliding groove (202) and abuts against the side wall of the second sliding groove (202).

6. The hinge of claim 1, wherein The second page body assembly (200) comprises a connecting seat (210) and two connecting ears (220), the third connecting arm (410) is hinged to the connecting seat (210) at the end away from the second hinge part (420), the second connecting arm (330) is slidingly connected to the connecting seat (210), and the connecting ears (220) are used for being connected to a door, one of the two connecting ears (220) is arranged on one side of the connecting seat (210) along the axial direction of the second hinge part (420), and the other is arranged on the other side of the connecting seat (210) along the axial direction of the second hinge part (420), and an adjusting bolt (500) is arranged between the connecting seat (210) and the connecting ears (220), and the adjusting bolt (500) is used for adjusting the movement of the connecting seat (210) along the axial direction of the adjusting bolt (500).

7. The hinge of claim 6, wherein The connecting ear (220) comprises a connecting plate (221) and a connecting block (222) arranged on the connecting plate (221), the connecting plate (221) and the connecting block (222) enclose an accommodating groove (223), opposite sides of the connecting seat (210) are respectively provided with a connecting protrusion (211) along the axial direction of the second hinge part (420), the connecting protrusion (211) is accommodated in the corresponding accommodating groove (223), and the adjusting bolt (500) is sequentially arranged in the connecting plate (221), the connecting protrusion (211) and the connecting block (222).

8. The hinge of claim 7, wherein The adjusting bolt (500) comprises a first abutting part (510), a second abutting part (520) and a first rod part (530), the first abutting part (510) is arranged at one end of the first rod part (530), the second abutting part (520) is arranged at the other end of the first rod part (530), the first abutting part (510) abuts against the connecting plate (221), the second abutting part (520) abuts against the connecting block (222), and the first rod part (530) is threadedly connected with the connecting protrusion (211).

9. The hinge of claim 7, wherein, The second page body assembly (200) further comprises a locking bolt (600), the locking bolt (600) is arranged between the connecting ear (220) and the connecting block (222), and the locking bolt (600) is used for locking the connecting ear (220) and the connecting block (222).

10. A T- door, characterized in that A hinge comprising any one of claims 1 to 9.

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