A folding cabinet door mechanism for a small cubicle

Abstract

This utility model discloses a folding cabinet door mechanism for narrow compartments, comprising a first cabinet door, a second cabinet door, a first door lock, a second door lock, a hinge, a guide rail, a slider, a lower cabinet door fixing bracket, an upper cabinet door fixing bracket, a guide rail fixing bracket, a rotating shaft, an upper rotating pin, and a lower rotating pin. The first and second cabinet doors are hinged together. The first and second door locks are respectively mounted on the first and second cabinet doors. The upper and lower rotating pins are located at the upper and lower ends, respectively, and are rotatably connected to the upper and lower cabinet door fixing brackets. The guide rail fixing bracket is fixed to the upper end of the opposite side of the compartment opening, and both ends of the guide rail are connected to the upper cabinet door fixing bracket and the guide rail fixing bracket, respectively. The slider slides within the guide rail. The lower end of the rotating shaft is connected to the second cabinet door, and the upper end of the rotating shaft is rotatably connected to the slider. This utility model has a simple structure, few parts, and low cost.

Description

Technical Field

[0001] This utility model relates to cabinet doors used on transportation vehicles such as airplanes and high-speed trains, and specifically to a folding cabinet door mechanism for narrow compartments. Background Technology

[0002] On airplanes, high-speed trains, and other modes of transportation, cabinet doors are installed at the openings of small compartments to protect items stored there. However, often there are other facilities outside the compartment that obstruct the opening of these doors, such as a small bed on one side. The bed portion can block part of the space outside the compartment, thus hindering the normal opening of the cabinet door.

[0003] To address the issue of adding cabinet doors in the above situations, the following solutions are typically available:

[0004] The first approach involves installing partitions in the area corresponding to obstacles at the compartment opening, and then installing cabinet doors in the remaining opening. When the cabinet doors are closed, they, along with the partitions, seal the opening. This approach has two main drawbacks: firstly, the partitions reduce the area of ​​the compartment opening, thus decreasing the maximum size of items that can be stored in the compartment; secondly, it is structurally complex, requiring an additional partition assembly consisting of the partitions and connecting brackets, in addition to the cabinet doors.

[0005] The second option is to use a sliding door mechanism made up of many small panels. The main drawbacks of this option are its complex structure, large number of parts, and heavy weight. In addition, when the cabinet door is closed, there may still be relative movement between the small panels that make up the cabinet door. When the aircraft, high-speed train and other means of transportation are running, the bumps will cause the small panels of this cabinet door to wear down continuously, produce abnormal noise, and reduce the service life of the cabinet door. Utility Model Content

[0006] The purpose of this invention is to provide a folding cabinet door mechanism for narrow compartments.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A folding cabinet door mechanism for narrow compartments, characterized by comprising a first cabinet door, a second cabinet door, a first door lock, a second door lock, a hinge, a guide rail, a slider, a lower cabinet door fixing bracket, an upper cabinet door fixing bracket, a guide rail fixing bracket, a pivot, an upper rotating pin, and a lower rotating pin. The first and second cabinet doors are hinged together. The first and second door locks are respectively located on the upper parts of the first and second cabinet doors. The upper and lower cabinet door fixing brackets are correspondingly fixed at their upper and lower ends on one side of the compartment opening. The upper rotating pin and the lower rotating pin... The lower rotating pins are respectively located at the upper and lower ends of the first cabinet door away from the second cabinet door. The upper and lower rotating pins are rotatably connected to the upper cabinet door fixing bracket and the lower cabinet door fixing bracket, respectively. The guide rail fixing bracket is fixed at the upper end on the other side of the compartment opening. The two ends of the guide rail are respectively connected to the upper cabinet door fixing bracket and the guide rail fixing bracket. The slider slides in the guide rail. The lower end of the rotating shaft is connected to the upper end of the second cabinet door away from the first cabinet door. The upper end of the rotating shaft is rotatably connected to the slider. When locked, the lock tongues of the first and second door locks are inserted upward into the guide rail.

[0009] A further technical solution of this utility model is as follows: the structure of the lower cabinet door fixing bracket, the upper cabinet door fixing bracket and the guide rail fixing bracket is the same, all including a fixing plate and a protruding support block provided at one end of the fixing plate, and the support block is provided with a connecting hole.

[0010] A further technical solution of this utility model is as follows: a guide groove is provided inside the guide rail, the two ends of the guide groove are open, the groove opening is located below the guide rail, the cross-sectional shape of the support block is the same as the cross-sectional shape of the guide groove of the guide rail, and the support block can be inserted into both ends of the guide groove of the guide rail.

[0011] A further technical solution of this utility model is as follows: the connecting hole is a countersunk hole, and the upper ends of the upper rotating pin and the rotating shaft are respectively provided with round heads with increased diameter, and the round heads are sunk into the head of the countersunk hole.

[0012] A further technical solution of this utility model is that both the first door lock and the second door lock are located near the hinge.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model's folding cabinet door mechanism uses three fixed supports for fixed installation. One end of the guide rail and the upper end of the first door lock share the upper cabinet door fixed support for installation. The installation structure is simple, requiring fewer fixing points during installation, which can reduce changes to the structure of the compartment opening when installing the cabinet door mechanism. In addition, this utility model achieves locking by inserting the latches of the first and second door locks upward into the guide rail, eliminating the need for additional lock holes or other components that cooperate with the latches. It can be seen that the folding cabinet door mechanism of this utility model has a simple structure, few parts, and low cost.

[0015] The folding cabinet door mechanism of this utility model folds the first and second cabinet doors together to one side when opened, which can better avoid obstacles outside the compartment. Moreover, it occupies less space in the compartment opening when opened, which can ensure that larger tools can also be put into the compartment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the folding cabinet door mechanism according to an embodiment of the present utility model;

[0017] Figure 2 This is an exploded view of the folding cabinet door mechanism according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the guide rail of the folding cabinet door mechanism in an embodiment of the present utility model when it is disassembled;

[0019] Figure 4 This is a three-dimensional schematic diagram of the upper cabinet door fixing bracket according to an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the folding cabinet door mechanism of this utility model when it is installed at the partition opening;

[0021] Figure 6 This is a schematic diagram of the folding cabinet door mechanism of this utility model when it is opened during use.

[0022] Meaning of the labels in the attached diagram:

[0023] 1-First cabinet door; 2-Second cabinet door; 3-Upper cabinet door fixing bracket; 3.1-Fixing plate; 3.2-Support block; 3.3-Connecting hole; 4-Lower cabinet door fixing bracket; 5-Guide rail fixing bracket; 6-Guide rail; 6.1-Guide groove; 6.2-Groove; 7-First door lock; 8-Second door lock; 9-Upper rotating pin; 10-Lower rotating pin; 11-Rotating shaft; 12-Slider; 13-Hinge; 14-Mounting hole; 15-Lock tongue; 16-Compartment; 17-Obstruction outside the compartment. Detailed Implementation

[0024] The present invention will be further described below with reference to embodiments.

[0025] 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 relationship based on the directional or positional relationship 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.

[0026] 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.

[0027] 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.

[0028] Example:

[0029] like Figures 1 to 6 The folding cabinet door mechanism for narrow compartments shown in this embodiment includes a first cabinet door 1, a second cabinet door 2, a first door lock 7, a second door lock 8, a hinge 13, a guide rail 6, a slider 12, a lower cabinet door fixing bracket 4, an upper cabinet door fixing bracket 3, a guide rail fixing bracket 5, a rotating shaft 11, an upper rotating pin 9, and a lower rotating pin 10.

[0030] The first cabinet door 1 and the second cabinet door 2 have the same external dimensions. The first cabinet door 1 and the second cabinet door 2 are hinged together by a hinge 13, allowing them to rotate and fold. The first door lock 7 and the second door lock 8 are respectively located on the upper part of the first cabinet door 1 and the second cabinet door 2. Both the first door lock 7 and the second door lock 8 are located near the hinge 13. The latches 15 of the first door lock 7 and the second door lock 8 protrude upwards. When locked, the latches 15 of the first door lock 7 and the second door lock 8 will insert upwards into the guide groove 6.1 of the guide rail 6.

[0031] The lower cabinet door fixing bracket 4, the upper cabinet door fixing bracket 3, and the guide rail fixing bracket 5 in this embodiment have the same structure, such as... Figure 4 As shown, each component includes a fixing plate 3.1 and a protruding support block 3.2 located at one end of the fixing plate 3.1. The fixing plate 3.1 has two through holes, one at the top and one at the bottom. During fixing, screws are passed through the through holes to fix the fixing plate 3.1 to the side of the opening of the compartment 16. The support block 3.2 has a connecting hole 3.3. In this embodiment, the connecting hole 3.3 is a countersunk hole, wherein the heads of the countersunk holes of the upper cabinet door fixing bracket 3 and the guide rail fixing bracket 5 are located at the upper end.

[0032] In this embodiment, the upper cabinet door fixing bracket 3 and the lower cabinet door fixing bracket 4 are fixed at the upper and lower ends of the opening side of the compartment 16, respectively. The upper cabinet door fixing bracket 3 and the lower cabinet door fixing bracket 4 are symmetrical. The upper rotating pin 9 and the lower rotating pin 10 are respectively provided in the mounting holes 14 at the upper and lower ends of the first cabinet door 1 away from the second cabinet door 2. The upper rotating pin 9 and the lower rotating pin 10 are respectively passed through the connecting holes 3.3 of the support block 3.2 to realize the rotatable connection with the upper cabinet door fixing bracket 3 and the lower cabinet door fixing bracket 4.

[0033] The guide rail fixing bracket 5 is fixed at the upper end of the other side of the opening of the compartment 16, and is at the same horizontal position as the upper cabinet door fixing bracket 3.

[0034] In this embodiment, the guide rail 6 is machined from a profile. A guide groove 6.1 is provided inside the guide rail 6, with openings at both ends. The groove opening 6.2 of the guide groove 6.1 is located below the guide rail 6. The cross-sectional shape of the support block 3.2 is the same as that of the guide groove 6.1 of the guide rail 6. Both ends of the guide groove 6.1 of the guide rail 6 are respectively fitted onto the support blocks 3.2 of the guide rail fixing bracket 5 and the upper cabinet door fixing bracket 3, thereby fixing the guide rail 6 between the guide rail fixing bracket 5 and the upper cabinet door fixing bracket 3.

[0035] The slider 12 slides in the guide groove 6.1 of the guide rail 6. The slider 12 is provided with a shaft hole. The lower end of the rotating shaft 11 is connected to the mounting hole 14 of the upper end of the second cabinet door 2 away from the first cabinet door 1. The upper end of the rotating shaft 11 passes through the shaft hole on the slider 12, thereby rotatingly connecting with the slider 12.

[0036] In this embodiment, the upper ends of the upper rotating pin 9 and the rotating shaft 11 are respectively provided with round heads with increased diameter, and the round heads are sunk into the head of the countersunk hole.

[0037] The installation process of the folding cabinet door mechanism in this embodiment is as follows:

[0038] First, insert the rotating shaft 11 into the shaft hole of the slider 12, and place the slider 12 into the guide rail 6. Then, insert the upper rotating pin 9 into the connecting hole of the upper cabinet door fixing bracket 3. Insert the support blocks 3.2 of the upper cabinet door fixing bracket 3 and the guide rail fixing bracket 5 into both ends of the guide rail 6 to assemble them together. Then, move the upper cabinet door fixing bracket 3 and the guide rail fixing bracket 5 to the corresponding positions on both sides of the upper end of the opening of the compartment 16, and fix them with screws. At this point, the installation of the guide rail 6 is complete.

[0039] Next, install the first cabinet door 1 and the second cabinet door 2. Install the first door lock 7 and the second door lock 8 on the first cabinet door 1 and the second cabinet door 2 respectively, and hinge the first door lock 7 and the second door lock 8 together using the hinge 13. Then, connect the lower rotating pin 10 to the mounting hole 14 at the lower end of the first cabinet door 1, and pass the lower rotating pin 10 through the connecting hole of the lower cabinet door fixing bracket 4. Then, install the connected first cabinet door 1 and the second cabinet door 2 from bottom to top, and fit the mounting holes 14 at the upper ends of the first cabinet door 1 and the second cabinet door 2 onto the upper rotating pin 9 and the shaft hole 11 respectively. Adjust the lower cabinet door fixing bracket 4 to the corresponding position, and then fix the lower cabinet door fixing bracket 4 to the side of the opening of the compartment 16 with screws. This completes the installation of the cabinet doors.

[0040] When locked, the first cabinet door 1 and the second cabinet door 2 cover the opening of the compartment 16, and the latches 15 of the first door lock 7 and the second door lock 8 are inserted upward into the guide groove 6.1 of the guide rail 6, thus locking the cabinet doors.

[0041] When it is necessary to open, unlock the second door lock 8, and simultaneously pull the first door lock 7 to unlock. The bolt 15 moves downward out of the guide groove 6.1 of the guide rail 6, and the cabinet door is pulled outward. The upper rotating pin 9 and the lower rotating pin 10 will rotate relative to the upper cabinet door fixing bracket 3 and the lower cabinet door fixing bracket 4. The rotating shaft 11 will rotate relative to the slider 12, and the slider 12 will slide within the guide rail 6, causing the first cabinet door 1 and the second cabinet door 2 to fold to one side, completing the opening of the compartment 16. Figure 6 The diagram shown is a schematic of compartment 16 when it is opened.

[0042] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A folding cabinet door mechanism for narrow compartments, characterized in that: The system includes a first cabinet door, a second cabinet door, a first door lock, a second door lock, a hinge, a guide rail, a slider, a lower cabinet door fixing bracket, an upper cabinet door fixing bracket, a guide rail fixing bracket, a pivot, an upper rotating pin, and a lower rotating pin. The first and second cabinet doors are hinged together. The first and second door locks are respectively located on the upper parts of the first and second cabinet doors. The upper and lower cabinet door fixing brackets are fixed to the upper and lower ends of one side of the compartment opening. The upper and lower rotating pins are respectively located on the first cabinet door away from the second cabinet door. At the top and bottom ends of the door, the upper rotating pin and the lower rotating pin are rotatably connected to the upper cabinet door fixing bracket and the lower cabinet door fixing bracket, respectively. The guide rail fixing bracket is fixed at the upper end on the other side of the compartment opening. The two ends of the guide rail are connected to the upper cabinet door fixing bracket and the guide rail fixing bracket, respectively. The slider slides in the guide rail. The lower end of the rotating shaft is connected to the upper end of the second cabinet door away from the first cabinet door. The upper end of the rotating shaft is rotatably connected to the slider. When locked, the latches of the first door lock and the second door lock are inserted upward into the guide rail.

2. The folding cabinet door mechanism for narrow compartments according to claim 1, characterized in that: The lower cabinet door fixing bracket, the upper cabinet door fixing bracket, and the guide rail fixing bracket have the same structure, all including a fixing plate and a protruding support block at one end of the fixing plate, and the support block is provided with a connecting hole.

3. The folding cabinet door mechanism for narrow compartments according to claim 2, characterized in that: The guide rail is provided with a guide groove, which is open at both ends. The groove opening is located below the guide rail. The cross-sectional shape of the support block is the same as that of the guide groove of the guide rail. The support block can be inserted into both ends of the guide groove of the guide rail.

4. The folding cabinet door mechanism for narrow compartments according to claim 2, characterized in that: The connecting hole is a countersunk hole, and the upper ends of the upper rotating pin and the rotating shaft are respectively provided with round heads with increased diameters, and the round heads are recessed into the head of the countersunk hole.

5. The folding cabinet door mechanism for narrow compartments according to claim 1, characterized in that: Both the first and second door locks are located near the hinge.

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