Cabinet door lock for airplane bathroom

Abstract

The utility model relates to the technical field of door locks, in particular to a cabinet door lock for an airplane bathroom, which comprises a first mounting plate, a second mounting plate and an elastic piece, one end of the first mounting plate is used for connecting a cabinet body, and the other end of the first mounting plate is provided with a first hook-shaped part; the second mounting plate and the first mounting plate are arranged at intervals, one end of the second mounting plate is used for connecting the inner side of the cabinet door, a pull rod slidably penetrates the other end of the second mounting plate, and a second hook part is arranged at one end, close to the first hook part, of the pull rod; one end of the elastic piece is connected with the cabinet door, the other end of the elastic piece is connected with the end, away from the first installation plate, of the pull rod, after the pull rod is moved to enable the first stop structure and the second installation plate to be stopped, the second hook-shaped part moves to the opening of the first hook-shaped part, the second hook-shaped part enters a hook groove of the first hook-shaped part through the opening, and under the action of the elastic piece, the second hook-shaped part stops moving. The first hook-shaped part and the second hook-shaped part are hooked, so that locking of the cabinet door and the cabinet body is achieved, the structure is simple, and machining and assembling are easy.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to a cabinet door lock for aircraft toilets. Background Art

[0002] The space in an airplane bathroom is small. To make full use of the internal space, a locker is installed under the washbasin in the airplane bathroom, and the bathroom trash can is set inside the locker. To prevent the locker door from opening during the flight, the locker door needs to be kept tightly closed, and at the same time, it needs to be ensured that the locker door can be opened smoothly when needed.

[0003] Chinese invention patent publication number CN117365210A discloses a concealed aircraft lavatory trash bin door lock, comprising a locking mechanism, an upper bracket mechanism, a connecting rod mechanism, and an opening mechanism. The locking mechanism is located at the upper end of the connecting rod mechanism and is rotationally connected thereto. The upper bracket mechanism and the locking mechanism are connected to each other, and the opening mechanism is located at the lower end of the connecting rod mechanism and is securely connected thereto. Both the locking mechanism and the connecting rod mechanism are mounted on the inside of the trash bin door. The upper bracket mechanism is mounted on the trash bin shell at a position corresponding to the locking mechanism. The opening mechanism is located on the bottom of the trash bin door. Pulling the opening mechanism activates the locking mechanism through the connecting rod mechanism, separating the locking mechanism and the upper bracket mechanism to complete the opening operation. Closing the trash bin door locks the locking mechanism and the upper bracket mechanism. The locking and opening mechanisms are complex in structure, involving numerous parts, making processing and assembly difficult, costly, and inconvenient to maintain. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing aircraft toilet cabinet door locks have a complex structure, are difficult to manufacture and assemble, are costly and are not conducive to maintenance.

[0005] In order to solve the above technical problems, the purpose of this utility model is to provide an aircraft toilet cabinet door lock, comprising:

[0006] a first mounting plate, one end of which is used to connect to the cabinet, and the other end of which has a first hook-shaped portion;

[0007] a second mounting plate, the second mounting plate being spaced apart from the first mounting plate, one end of the second mounting plate being used for connecting to the inner side of the cabinet door, a pull rod being slidably passed through the other end of the second mounting plate, and a second hook portion being provided at one end of the pull rod adjacent to the first hook portion;

[0008] an elastic member, one end of which is connected to the cabinet door, and the other end of which is connected to an end of the pull rod away from the first mounting plate, so as to apply an elastic force to the pull rod so as to move the pull rod in a direction away from the first hook-shaped portion;

[0009] A first stopping structure is provided on the outer side of the pull rod. When the pull rod is moved toward the first hook portion, the first stopping structure and the second mounting plate stop the second hook portion and the second hook portion moves to the opening of the first hook portion.

[0010] As a preferred solution, the first hook portion has a hook groove, the length direction of the hook groove is parallel to the length direction of the pull rod, and the opening is provided at an end of the hook groove away from the pull rod.

[0011] As a preferred solution, the groove wall on the side of the opening close to the first mounting plate has a guide surface, and the guide surface extends obliquely toward the cabinet door and the first mounting plate away from one end of the hook groove.

[0012] As a preferred embodiment, the second hook-shaped portion includes an arc segment and a straight rod segment, the straight rod segment is arranged parallel to the pull rod and spaced apart, one end of the arc segment is connected to the pull rod, and the other end of the arc segment is connected to the straight rod segment, and the straight rod segment is set in the second mounting plate to slide up and down.

[0013] As a preferred solution, the pull rod is arranged vertically, the arc section is connected to the upper end of the pull rod, and a second stopping structure is provided on the outer side of the straight rod section. The second stopping structure abuts against the upper end of the second mounting plate so that the inner top end of the arc section is flush with the end of the guide surface away from the hook groove.

[0014] As a preferred solution, the second stopping structure is a second sleeve fixed on the outside of the straight rod end.

[0015] As a preferred solution, the first stopping structure is a first sleeve fixedly sleeved on the outside of the pull rod.

[0016] As a preferred solution, a third mounting plate is fixed to the cabinet door and is arranged relative to and spaced apart from the second mounting plate, and one end of the pull rod away from the first mounting plate is slidably inserted into the third mounting plate.

[0017] As a preferred solution, the end of the pull rod away from the second mounting portion passes through the third mounting plate and is provided with a stop ring arranged at an interval from the third mounting plate. The elastic member is a compression spring sleeved on the outside of the pull rod, one end of the compression spring abuts against the stop ring, and the other end of the compression spring abuts against the third mounting plate.

[0018] As a preferred solution, the end of the pull rod away from the second mounting plate is provided with an external thread, and the stop ring is an adjusting screw sleeve threadedly assembled on the external thread.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model provides a cabinet door lock for an aircraft toilet, comprising a first mounting plate, a second mounting plate and an elastic member, wherein one end of the first mounting plate is used to connect to the cabinet body, and the other end of the first mounting plate has a first hook-shaped portion; the second mounting plate is spaced apart from the first mounting plate, and one end of the second mounting plate is used to connect to the inner side of the cabinet door, and the other end of the second mounting plate is slidably penetrated by a pull rod, and the end of the pull rod close to the first hook-shaped portion is provided with a second hook portion; one end of the elastic member is connected to the cabinet door, and the other end of the elastic member is connected to the end of the pull rod away from the first mounting plate, so as to apply elastic force to the pull rod so that the pull rod moves away from the first mounting plate. The drawer is provided with a first stop structure on the outside of the drawer; when in use, the drawer is moved so that the first stop structure is stopped by the second mounting plate, and then the second hook moves to the opening of the first hook, and then the cabinet door is pushed inward, and the second hook enters the hook groove of the first hook through the opening. After the drawer is released, the drawer moves away from the first hook under the action of the elastic member, and the first hook and the second hook are hooked together, thereby realizing the locking of the cabinet door and the cabinet body. The cabinet door lock for aircraft toilets of the utility model has a simple structure, is easy to process and assemble, and is convenient to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a side view of the aircraft toilet door lock of the present invention;

[0022] Figure 2 Schematic diagram of the structure of the aircraft toilet door lock of the present invention when viewed from the inside of the cabinet;

[0023] Figure 3 This is an axonometric view of the aircraft toilet cabinet door lock of the present utility model;

[0024] Figure 4 is a first enlarged view of the first hook portion and the second hook portion being hooked together;

[0025] Figure 5 is a second enlarged view of the first hook portion and the second hook portion being hooked together;

[0026] In the figure, 100, cabinet door, 1, first mounting plate, 11, first hook portion, 111, hook groove, 112, opening, 113, guide surface, 2, second mounting plate, 3, pull rod, 31, second hook portion, 311, arc segment, 312, straight rod segment, 4, elastic member, 51, first stopping structure, 52, second stopping structure, 6, third mounting plate, 7, stopping ring. DETAILED DESCRIPTION

[0027] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0029] like Figures 1 to 5 As shown, a preferred embodiment of the cabinet door lock for aircraft toilets of the present invention includes a first mounting plate 1, a second mounting plate 2 and an elastic member 4, one end of the first mounting plate 1 is used to connect to the cabinet body, and the other end of the first mounting plate 1 has a first hook portion 11; the second mounting plate 2 is arranged at an interval from the first mounting plate 1, one end of the second mounting plate 2 is used to connect to the inner side of the cabinet door 100, and the other end of the second mounting plate 2 is slidably penetrated by a pull rod 3, and the end of the pull rod 3 close to the first hook portion 11 is provided with a second hook portion 31; one end of the elastic member 4 is connected to the cabinet door 100, and the other end of the elastic member 4 is connected to the end of the pull rod 3 away from the first mounting plate 1 to apply elastic force to the pull rod 3, so that the pull rod 3 moves in a direction away from the first hook portion 11; a first stopping structure 51 is provided on the outside of the pull rod 3, and the pull rod 3 is moved in a direction close to the first hook portion 11, the first stopping structure 51 and the second mounting plate 2 stop and the second hook portion 31 moves to the opening 112 of the first hook portion 11.

[0030] During use, after moving the pull rod 3 so that the first stopping structure 51 is stopped by the second mounting plate 2, the second hook portion 31 moves to the opening 112 of the first hook portion 11, and then the cabinet door 100 is pushed inward, and the second hook portion 31 enters the hook groove 111 of the first hook portion 11 through the opening 112. After loosening the pull rod 3, under the action of the elastic member 4, the pull rod 3 moves away from the first hook portion 11, and the first hook portion 11 and the second hook portion 31 are hooked together, thereby realizing the locking of the cabinet door 100 and the cabinet body. The cabinet door lock for aircraft toilets of the present invention has a simple structure, is easy to process and assemble, and is easy to maintain.

[0031] To ensure stable hooking of the second hook with the first hook, in this embodiment, the first hook portion 11 has a hook groove 111, the length direction of the hook groove 111 is parallel to the length direction of the pull rod 3, and the opening 112 of the first hook portion 11 is arranged at the end of the hook groove 111 away from the pull rod 3. Specifically, in this embodiment, the pull rod 3 is arranged vertically, and the hook groove 111 is arranged vertically in the length direction. The opening 112 of the first hook portion 11 is set at the upper part of the hook groove 111, and the elastic member 4 applies a downward elastic force to the pull rod 3, lifting the pull rod 3 upward, so that the pull rod 3 overcomes the elastic force of the elastic member 4 and moves upward. When the first stopping structure 51 stops with the lower end of the first mounting plate 1, it indicates that the second hook portion 31 moves into position. At this time, the second hook portion 31 is exactly opposite to the opening 112 of the first hook portion 11 front and back. Push the cabinet door 100 backward, and the second hook portion 31 enters the hook groove 111 of the first hook portion 11. After releasing the pull rod 3, the pull rod 3 moves downward under the elastic force of the elastic member 4, so that the second hook portion 31 is stably stuck in the hook groove 111, realizing the locking of the cabinet door 100 with the cabinet body.

[0032] To facilitate the second hook portion 31 to enter the hook groove 111 through the opening 112, in this embodiment, the groove wall on the side of the opening 112 close to the first mounting plate 1 has a guide surface 113, and the guide surface 113 extends obliquely toward the cabinet door 100 and toward the first mounting plate 1 away from the end of the hook groove 111.

[0033] Furthermore, in this embodiment, the pull rod 3 is a round rod, and the second hook portion 31 includes an arc segment 311 and a straight rod segment 312. The straight rod segment 312 is arranged parallel to the pull rod 3 and spaced apart. One end of the arc segment 311 is connected to the pull rod 3, and the other end of the arc segment 311 is connected to the straight rod segment 312. The straight rod segment 312 is slidably arranged in the second mounting plate 2. The straight rod segment 312 and the pull rod 3 are inserted into the second mounting plate 2 at the same time, so that the pull rod 3 can only slide up and down relative to the second mounting plate 2 and cannot rotate relative to the second mounting plate 2. In other embodiments of the present invention, the pull rod 3 can be set as a polygonal rod body to prevent the pull rod 3 from rotating relative to the second mounting plate 2, and there is no need to slide the straight rod segment 312 through the second mounting plate 2.

[0034] In this embodiment, a second stop structure 52 is provided on the outer side of the straight rod section 312. The second stop structure 52 stops the upper end of the second mounting plate 2, so that the inner top end of the arcuate section 311 is flush with the end of the guide surface 113 away from the hook groove 111. The provision of the second stop portion defines the lowest position of the pull rod 3, so that when the pull rod 3 is in the lowest position, it is flush with the lowest point of the guide surface 113. At this time, when the cabinet door 100 is pushed into the cabinet, the guide surface 113 can drive the pull rod 3 upward to the opening 112, thereby allowing the pull rod 3 to automatically enter the hook groove 111.

[0035] To further improve the stability of the pull rod 3 during movement, in this embodiment, a third mounting plate 6 is fixed to the cabinet door 100 and is spaced apart from the second mounting plate 2. The end of the pull rod 3 away from the first mounting plate 1 slides through the third mounting plate 6. Specifically, the third mounting plate 6 is located directly below the second mounting plate 2 and provides a guide for the lower end of the pull rod 3.

[0036] Among them, there are many ways to set up the elastic member 4. In this embodiment, the end of the pull rod 3 away from the second mounting portion passes through the third mounting plate 6 and is provided with a stop ring 7 spaced apart from the third mounting plate 6. The elastic member 4 is a compression spring sleeved on the outside of the pull rod 3, one end of the compression spring abuts against the stop ring 7, and the other end of the compression spring abuts against the third mounting plate 6. The pull rod 3 plays a guiding role for the compression spring, ensuring the stable operation of the compression spring. In other embodiments of the present invention, the elastic member 4 can be a tension spring, one end of the tension spring is connected to the third mounting plate 6, and the other end of the tension spring is fixedly connected to the position of the pull rod 3 between the second mounting plate 2 and the third mounting plate 6.

[0037] In this embodiment, the end of the pull rod 3 away from the second mounting plate 2 is provided with an external thread, and the retaining ring 7 is an adjusting screw sleeve threadedly assembled on the external thread. By rotating the screw sleeve, the distance between the screw sleeve and the third mounting plate 6 can be adjusted, thereby adjusting the pre-compression of the compression spring, which in turn adjusts the elastic force of the elastic member 4, ensuring that the first hook portion 11 and the second hook portion 31 are tightly connected.

[0038] In this embodiment, the first stopping structure 51 is a first sleeve fixedly sleeved on the outside of the pull rod 3 , and the second stopping structure 52 is a second sleeve fixedly sleeved on the outside of the straight rod section 312 .

[0039] In this embodiment, the lower end of the pull rod 3 protrudes out of the lower end of the cabinet door 100 , and the cabinet door 100 can be opened by pushing the lower end of the pull rod 3 upward.

[0040] The method of using the aircraft toilet cabinet door lock of the utility model is as follows:

[0041] When closing the cabinet door 100, first turn the cabinet door 100 to a nearly closed state, then lift the pull rod 3 upward so that the first stopping structure 51 abuts against the lower end of the first mounting plate 1, then push the cabinet door 100 inward, and the second hook portion 31 enters the hook groove 111 of the first hook portion 11 through the opening 112, then release the pull rod 3, and the elastic member 4 pulls the pull rod 3 downward, so that the second hook portion 31 is stably stuck in the hook groove 111; when opening the cabinet door 100, first lift the pull rod 3 upward, and then gently pull the cabinet door 100 outward, the second hook portion 31 disengages from the opening 112 to the outside of the hook groove 111, and then the cabinet door 100 can be opened.

[0042] In summary, the cabinet door lock for an aircraft toilet of the present invention comprises a first mounting plate 1, a second mounting plate 2 and an elastic member 4. One end of the first mounting plate 1 is used to connect to the cabinet body, and the other end of the first mounting plate 1 has a first hook-shaped portion 11; the second mounting plate 2 is spaced apart from the first mounting plate 1, and one end of the second mounting plate 2 is used to connect to the inner side of the cabinet door 100. The other end of the second mounting plate 2 is slidably penetrated by a pull rod 3, and the end of the pull rod 3 close to the first hook-shaped portion 11 is provided with a second hook portion 31; one end of the elastic member 4 is connected to the cabinet door 100, and the other end of the elastic member 4 is connected to the end of the pull rod 3 away from the first mounting plate 1, so as to apply elastic force to the pull rod 3, so that the pull rod 3 moves away from the first hook 1 1; a first stopping structure 51 is provided on the outer side of the pull rod 3; when in use, after moving the pull rod 3 so that the first stopping structure 51 is stopped by the second mounting plate 2, the second hook portion 31 moves to the opening 112 of the first hook portion 11, and then the cabinet door 100 is pushed inward, and the second hook portion 31 enters the hook groove 111 of the first hook portion 11 through the opening 112. After loosening the pull rod 3, under the action of the elastic member 4, the pull rod 3 moves in the direction away from the first hook portion 11, and the first hook portion 11 and the second hook portion 31 are hooked together, thereby realizing the locking of the cabinet door 100 and the cabinet body. The cabinet door lock for aircraft toilets of the present invention has a simple structure, is easy to process and assemble, and is easy to maintain.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A cabinet door lock for an aircraft toilet, characterized in that: include: A first mounting plate (1), one end of the first mounting plate (1) being used for connecting to a cabinet, and the other end of the first mounting plate (1) being provided with a first hook-shaped portion (11); a second mounting plate (2), the second mounting plate (2) being spaced apart from the first mounting plate (1), one end of the second mounting plate (2) being used for connecting to the inner side of the cabinet door (100), the other end of the second mounting plate (2) being slidably provided with a pull rod (3), the end of the pull rod (3) close to the first hook portion (11) being provided with a second hook portion (31); an elastic member (4), one end of the elastic member (4) being connected to the cabinet door (100), and the other end of the elastic member (4) being connected to an end of the pull rod (3) away from the first mounting plate (1), so as to apply an elastic force to the pull rod (3) so as to move the pull rod (3) in a direction away from the first hook-shaped portion (11); A first stopping structure (51) is provided on the outer side of the pull rod (3). When the pull rod (3) is moved toward the first hook portion (11), the first stopping structure (51) and the second mounting plate (2) stop the second hook portion (31), and the second hook portion (31) moves to the opening (112) of the first hook portion (11).

2. The aircraft toilet door lock according to claim 1, characterized in that: The first hook portion (11) has a hook groove (111), the length direction of the hook groove (111) is parallel to the length direction of the pull rod (3), and the opening (112) is provided at one end of the hook groove (111) away from the pull rod (3).

3. The aircraft toilet door lock according to claim 2, characterized in that: The groove wall of the opening (112) on the side close to the first mounting plate (1) has a guide surface (113), and the guide surface (113) extends obliquely from one end of the hook groove (111) toward the cabinet door (100) and toward the first mounting plate (1).

4. The aircraft toilet door lock according to claim 3, characterized in that: The second hook-shaped portion (31) comprises an arc segment (311) and a straight rod segment (312), wherein the straight rod segment (312) is arranged in parallel with the pull rod (3) and spaced apart from each other, one end of the arc segment (311) is connected to the pull rod (3), and the other end of the arc segment (311) is connected to the straight rod segment (312), and the straight rod segment (312) is slidably arranged in the second mounting plate (2) up and down.

5. The aircraft toilet door lock according to claim 4, characterized in that: The pull rod (3) is arranged vertically, the arc section (311) is connected to the upper end of the pull rod (3), and a second stopping structure (52) is provided on the outer side of the straight rod section (312). The second stopping structure (52) abuts against the upper end of the second mounting plate (2) so that the inner top end of the arc section (311) is flush with the end of the guide surface (113) away from the hook groove (111).

6. The aircraft toilet door lock according to claim 5, characterized in that: The second stopping structure (52) is a second sleeve fixed on the outside of the straight rod section.

7. The aircraft toilet door lock according to claim 1, characterized in that: The first stopping structure (51) is a first sleeve fixedly sleeved on the outside of the pull rod (3).

8. The aircraft toilet door lock according to claim 1, wherein: The cabinet door (100) is fixed with a third mounting plate (6) arranged spaced apart from the second mounting plate (2), and the end of the pull rod (3) away from the first mounting plate (1) is slidably inserted into the third mounting plate (6).

9. The aircraft toilet door lock according to claim 8, characterized in that: One end of the pull rod (3) away from the second mounting plate passes through the third mounting plate (6) and is provided with a stop ring (7) spaced apart from the third mounting plate (6); the elastic member (4) is a compression spring sleeved on the outside of the pull rod (3); one end of the compression spring abuts against the stop ring (7), and the other end of the compression spring abuts against the third mounting plate (6).

10. The aircraft toilet door lock according to claim 9, characterized in that: An end of the pull rod (3) away from the second mounting plate (2) is provided with an external thread, and the stop ring (7) is an adjusting screw sleeve threadably assembled on the external thread.

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