Hidden aluminum alloy door hinge structure

Abstract

The utility model discloses a hidden aluminum alloy door hinge structure, which belongs to the technical field of hinge structures and comprises a fixed seat connected with a cabin body and a movable seat connected with a cabin door. The fixed seat and the movable seat are in transmission connection through a first connecting rod and a third connecting rod which are mutually hinged and a second connecting rod and a fourth connecting rod which are mutually hinged to form a four-bar mechanism; wherein the end portion of the first connecting rod and the end portion of the second connecting rod are both arranged in a first installation groove formed in the movable seat and are rotatably assembled on a first plug pin arranged in the first installation groove, and the end portion of the third connecting rod and the end portion of the fourth connecting rod are both arranged in a second installation groove formed in the fixed seat and are rotatably assembled on a second plug pin arranged in the second installation groove. And the rotating shaft is rotatably assembled on a second bolt arranged in the second mounting groove. The hinge installation procedure can be simplified, the hinge is installed in the cabin in a hidden mode, the hinge cannot be exposed to the outer side when the cabin door is opened and closed, and the overall attractiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hinge structures, in particular to a hidden aluminum alloy door hinge structure. Background Art

[0002] At present, hatches are generally required to be set on both sides of the square cabin and the warhead cabin. The hatches can be opened and closed freely. When the hatches are closed, they can protect the equipment in the cabin. When the hatches are opened, it is convenient for equipment operation. The hatches and the cabin body are generally connected by hinges. There are various forms of connecting hinges. With the development of technology, the requirements for the aesthetics and lightweight of hinges are getting higher and higher. However, there are hinges on both sides of the existing long hinges. One side of the hinge is connected to the cabin body through a countersunk rivet, and the other side of the hinge is connected to the cabin door through a countersunk rivet. When installing the hinge, rivet mounting holes need to be drilled every 50 mm on each side of the hinge. The installation process is cumbersome, and after installation, the hinges will be exposed to the outside when the cabin door is opened and closed, resulting in an overall unsightly appearance. Utility Model Content

[0003] The main purpose of the present invention is to solve the above-mentioned technical problems to a certain extent, and to propose a hidden aluminum alloy door hinge structure. The overall structure adopts a pin connection method to simplify the hinge installation process, and the hinge is hidden and installed in the cabin. The hinge will not be exposed to the outside when the door is opened or closed, thereby improving the overall aesthetics.

[0004] The above-mentioned problem to be solved by the present invention is achieved through the following technical solutions:

[0005] A concealed aluminum alloy door hinge structure is proposed, comprising a fixed base connected to the cabin body and a movable base connected to the cabin door. The fixed base and the movable base are connected to each other through a first connecting rod, a third connecting rod, a second connecting rod, and a fourth connecting rod, forming a four-bar linkage.

[0006] The ends of the first connecting rod and the second connecting rod are both placed in the first mounting groove provided on the movable seat, and are rotatably assembled on the first latch provided in the first mounting groove; the ends of the third connecting rod and the fourth connecting rod are both placed in the second mounting groove provided on the fixed seat, and are rotatably assembled on the second latch provided in the second mounting groove;

[0007] A third latch is provided at a hinged position between the first connecting rod and the third connecting rod, and a fourth latch is provided at a hinged position between the second connecting rod and the fourth connecting rod.

[0008] In some embodiments, a clearance groove is provided along the length direction of the third connecting rod, the second connecting rod passes through the clearance groove and is connected to the fourth connecting rod, and its portion located in the clearance groove can be rotatably assembled on the provided fifth pin.

[0009] In some embodiments, the end of the fourth connecting rod is placed in a slot provided on the second connecting rod.

[0010] In some embodiments, the cross-section of the second connecting rod is triangular, and one-third of the second connecting rod passes through the air-avoiding groove and is connected to the fourth connecting rod.

[0011] In some embodiments, the movable seat can flip and move relative to the fixed seat within an angle of 0-100 degrees.

[0012] In some embodiments, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are respectively provided with weight-reducing through grooves along their length directions.

[0013] The above technical solution provided by this application has the following advantages compared with the existing technology:

[0014] The utility model assembles the fixed seat on the cabin body and the movable seat on the cabin door, so that the hinge is installed in the cabin as a whole in a hidden manner. The hinge will not be exposed to the outside when the cabin door is opened or closed, thereby improving the overall aesthetics. At the same time, the fixed seat and the movable seat are connected by a first connecting rod and a third connecting rod and a second connecting rod and a fourth connecting rod that are hinged to each other to form a four-bar mechanism. In addition, the movable seat and the first connecting rod and the second connecting rod, the fixed seat and the third connecting rod and the fourth connecting rod, and each connecting rod are all connected by pins, thereby simplifying the hinge installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 the structures shown in these drawings without paying any creative work.

[0016] Figure 1 This is a structural diagram of the hidden aluminum alloy door hinge structure of the utility model;

[0017] Figure 2 This is a structural diagram of the hidden aluminum alloy door hinge structure of the utility model;

[0018] Figure 3 This is a structural diagram of the hidden aluminum alloy door hinge structure of the present utility model.

[0019] Description of Figure Numbers:

[0020] 100-cabin body; 200-cabin door; 1-fixed seat; 2-movable seat; 3-first connecting rod; 4-third connecting rod; 5-second connecting rod; 6-fourth connecting rod; 7-first mounting slot; 8-first latch; 9-second mounting slot; 10-second latch; 11-third latch; 12-fourth latch; 13-air avoidance slot; 14-card slot; 15-fifth latch; 16-weight-reducing slot. DETAILED DESCRIPTION

[0021] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] like Figure 1-3As shown, the present invention proposes a hidden aluminum alloy door hinge structure, including a fixed seat 1 connected to the cabin body 100 and a movable seat 2 connected to the cabin door 200, the fixed seat 1 and the movable seat 2 are connected by a first connecting rod 3 and a third connecting rod 4 and a second connecting rod 5 and a fourth connecting rod 6 that are hinged to each other and form a four-bar mechanism, through which the movable seat 2 can be flipped and moved within an angle of 100 degrees relative to the position of the fixed seat 1, wherein the ends of the first connecting rod 3 and the second connecting rod 5 are both placed in a first mounting groove 7 provided in the movable seat 2, and can be rotatably assembled on a first latch 8 provided in the first mounting groove 7, and the ends of the third connecting rod 4 and the fourth connecting rod 6 are both placed in a second mounting groove provided in the fixed seat 1 The first connecting rod 3 and the third connecting rod 4 are hinged at the joint thereof, and are rotatably assembled on the second latch 10 arranged in the second mounting groove 9; a third latch 11 is provided at the hinged joint of the first connecting rod 3 and the third connecting rod 4, and a fourth latch 12 is provided at the hinged joint of the second connecting rod 5 and the fourth connecting rod 6; an air avoidance groove 13 is provided along the length direction of the third connecting rod 4, and the cross-section of the second connecting rod 5 is triangular, and one-third of it passes through the air avoidance groove 13 and is connected to the fourth connecting rod 6, so that the second connecting rod 5 interferes with the position of the third connecting rod 4 when rotating, wherein the end portion of the fourth connecting rod 6 is placed in the card slot 14 set in the second connecting rod 5, and is fixedly connected by the fourth latch 12, and the portion of the second connecting rod 5 located in the air avoidance groove 13 can be rotatably assembled on the provided fifth latch 15.

[0025] like Figure 3 As shown, in this embodiment, the fixed seat 1 is assembled on the cabin body 100, and the movable seat 2 is assembled on the cabin door 200. When the cabin door 200 is opened, the movable seat 2 drives the first connecting rod 3 and the second connecting rod 5, and then the first connecting rod 3 drives the third connecting rod 4 to move in an articulated manner, and the second connecting rod 5 drives the fourth connecting rod 6 to move in an articulated manner. After the cabin door 200 is opened, it is flush with the top of the cabin body 100. When the cabin door 200 is closed, the first connecting rod 3 and the second connecting rod 5 are also driven by the movable seat 2, and then the first connecting rod 3 drives the third connecting rod 4 to move in an articulated manner. The second connecting rod 5 drives the fourth connecting rod 6 to move in an articulated manner, and the hinge is installed in a hidden manner inside the cabin, so that the hinge will not be exposed to the outside when the door 200 is opened or closed, thereby improving the overall aesthetics. At the same time, the fixed seat 1 and the movable seat 2 are connected by the first connecting rod 3 and the third connecting rod 4 and the second connecting rod 5 and the fourth connecting rod 6 that are hinged to each other to form a four-bar mechanism, and the movable seat 2 and the first connecting rod 3 and the second connecting rod 5, the fixed seat 1 and the third connecting rod 4 and the fourth connecting rod 6, as well as each connecting rod are connected by a pin, which simplifies the hinge installation process.

[0026] In this embodiment, the first connecting rod 3, the second connecting rod 5, the third connecting rod 4 and the fourth connecting rod 6 are all processed and formed from 7075 lightweight high-strength aluminum alloy, and the hinge as a whole is assembled by means of a first latch 8, a second latch 10, a third latch 11, a fourth latch 12 and a fifth latch 15 made of stainless steel, and the first connecting rod 3, the second connecting rod 5, the third connecting rod 4 and the fourth connecting rod 6 are respectively provided with a weight-reducing through groove 16 along their length direction, thereby effectively reducing the weight of the overall door installation hinge while ensuring the door installation strength. Through the above structure, the hinge device only uses eight pan head screw assemblies to connect with the cabin door 200 and the cabin body 100. For a conventional two-meter cabin door 200, only two hinge devices need to be installed, and a total of sixteen threaded mounting holes need to be drilled, which makes installation easier.

[0027] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A hidden aluminum alloy door hinge structure, characterized in that: It includes a fixed seat connected to the cabin body and a movable seat connected to the cabin door, wherein the fixed seat and the movable seat are connected to each other through a first connecting rod, a third connecting rod, a second connecting rod and a fourth connecting rod that are hinged to each other to form a four-bar linkage; The ends of the first connecting rod and the second connecting rod are both placed in the first mounting groove provided on the movable seat, and are rotatably assembled on the first latch provided in the first mounting groove; the ends of the third connecting rod and the fourth connecting rod are both placed in the second mounting groove provided on the fixed seat, and are rotatably assembled on the second latch provided in the second mounting groove; A third latch is provided at a hinged position between the first connecting rod and the third connecting rod, and a fourth latch is provided at a hinged position between the second connecting rod and the fourth connecting rod.

2. The hidden aluminum alloy door hinge structure according to claim 1, characterized in that: A clearance groove is provided along the length direction of the third connecting rod, the second connecting rod passes through the clearance groove and is connected to the fourth connecting rod, and the portion of the second connecting rod located in the clearance groove is rotatably assembled on the fifth latch.

3. The hidden aluminum alloy door hinge structure according to claim 2, characterized in that: The end of the fourth connecting rod is placed in the slot provided on the second connecting rod.

4. The hidden aluminum alloy door hinge structure according to claim 2, characterized in that: The cross section of the second connecting rod is triangular, and one-third of the second connecting rod passes through the air-avoiding groove and is connected to the fourth connecting rod.

5. The hidden aluminum alloy door hinge structure according to claim 1, characterized in that: The movable seat can be flipped and moved relative to the fixed seat within an angle of 0-100 degrees.

6. The hidden aluminum alloy door hinge structure according to claim 1, characterized in that: The first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are respectively provided with weight-reducing through grooves along their length directions.

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