Box door opening and closing auxiliary device

Abstract

The utility model relates to the technical field of box door opening and closing, and discloses a box door opening and closing auxiliary device which comprises an installation support installed on a box body with an upward opening, the box body is rotationally connected with a box door through a rotating shaft, and a guide shaft and a sliding block installed on the guide shaft in a sliding mode are installed on the installation support; one end of the connecting rod is rotationally installed on the box door, the other end of the connecting rod is rotationally installed on the sliding block, when the box door and the box body rotate relatively, the sliding block slides along the guide shaft, the compression spring is connected to the guide shaft in a sleeving mode, and when the box door seals the box body, the sliding block slides along the sliding block. And the compression spring is in a compressed state. The space occupied by the box door can be reduced, and the box door can be opened in a labor-saving mode.

Description

Technical Field

[0001] This application relates to the technical field of cabinet door switches, and in particular to an auxiliary device for cabinet door switches. Background Technology

[0002] In the domestic industry, the most common stainless steel vacuum leak detection chambers are small cylindrical chambers with small sealing flanges and sealing surfaces, and are lightweight, making them easy for operators to operate with one hand, but with limited volume.

[0003] To construct a large-volume vacuum chamber, its structure and weight must be carefully considered. Some larger stainless steel chambers have front-mounted sealing flanges and single-door designs that rotate to the left or right. These chambers require placement on a workbench or in an unobstructed location in front of the equipment, thus consuming considerable space. Utility Model Content

[0004] To address the aforementioned problems, this application provides an auxiliary device for opening and closing a cabinet door.

[0005] This application provides a door opening and closing auxiliary device, which adopts the following technical solution:

[0006] A cabinet door opening and closing auxiliary device includes:

[0007] The mounting bracket is installed on the box with the opening facing upwards. The box is rotatably connected to the box door via a rotating shaft. The mounting bracket is equipped with a guide shaft and a slider that is slidably installed on the guide shaft.

[0008] A connecting rod, one end of which is rotatably mounted on the door, and the other end of which is rotatably mounted on the slider. When the door and the box body rotate relative to each other, the slider slides along the guide shaft.

[0009] A compression spring is sleeved on the guide shaft. When the box door closes the box body, the compression spring is in a compressed state.

[0010] By adopting the above technical solution, the auxiliary device, through the coordinated use of the mounting bracket, guide shaft, slider, and connecting rod, achieves smooth opening and closing of the cabinet door on the cabinet body. When the cabinet door rotates relative to the cabinet body, the rotation of the connecting rod causes the slider to slide on the guide shaft. This mechanical linkage makes the opening and closing action of the cabinet door more stable. Since the cabinet body itself occupies a certain amount of space, less additional space is occupied when the cabinet door opens upwards, allowing other items to be placed around the cabinet. Furthermore, the compression spring provides a forward thrust to the slider, making it easier for the user to open the door manually.

[0011] Optionally, a buffer spring is sleeved on the guide shaft, and the two opposite sides of the slider are in contact with the compression spring and the buffer spring, respectively.

[0012] By adopting the above technical solution, when the door opens at too large an angle, the buffer spring can buffer the slider, slow down the slider's movement speed, and make the opening and closing action of the door smoother.

[0013] Optionally, two adjusting blocks are threadedly connected to the guide shaft, one end of the compression spring away from the slider abuts against one of the adjusting blocks, and the other end of the buffer spring away from the slider abuts against the other adjusting block.

[0014] By adopting the above technical solution, the preload of the compression spring and the buffer spring can be adjusted separately through two adjusting blocks threaded onto the guide shaft. This design allows users to flexibly adjust the spring force according to actual needs to accommodate doors of different weights or sizes.

[0015] Optionally, the mounting bracket can be detachably mounted on the housing.

[0016] By adopting the above technical solution, the mounting bracket is detachable, which makes it convenient for users to install the auxiliary device on the box or remove it for maintenance or replacement as needed.

[0017] Optionally, it also includes a pull rod, one end of which is fixedly installed on the door, and the other end of which extends out of the door.

[0018] By adopting the above technical solution and adding a pull rod, users can more conveniently operate the opening and closing of the cabinet door manually. One end of the pull rod is fixedly installed on the cabinet door, and the other end extends outside the cabinet door, allowing users to easily open and close the cabinet door by pulling the pull rod without touching the cabinet door itself.

[0019] Optionally, a handle is attached to one end of the pull rod that extends outside the door.

[0020] By adopting the above technical solutions, the handle design makes it more comfortable and effortless for users to pull the lever.

[0021] Optionally, the end of the pull rod connected to the handle is bent downwards.

[0022] By adopting the above technical solution, one end of the lever connected to the handle is bent downwards. This design allows the handle to be closer to the user's operating position, making it easier for the user to straighten their arm and press down on the handle, so that the user can easily hold the handle and operate without bending over or exerting effort.

[0023] Optionally, the pull rod includes a fixed section and a rotating section, the fixed section and the rotating section are rotatably connected, the fixed section is connected to the door, the rotating section is connected to the handle, and a fixing component is installed between the fixed section and the rotating section.

[0024] By adopting the above technical solution, the pull rod is divided into a fixed section and a rotating section, which are connected by a connecting shaft. This design allows the handle to rotate relative to the door within a certain range, thus adapting to different users' habits and height differences. At the same time, the fixed component ensures the stability and reliability of the pull rod during rotation, preventing safety hazards caused by loosening or detachment.

[0025] Optionally, the fixing component includes:

[0026] A connecting shaft passes through the junction of the fixed section and the rotating section.

[0027] A limiting block is fixedly installed at one end of the connecting shaft.

[0028] A fixing block is threadedly mounted on the other end of the connecting shaft.

[0029] By adopting the above technical solution, the fixing component connects the fixed section and the rotating section together via a connecting shaft, and the rotation angle of the pull rod is limited and fixed through the cooperation of the limiting block and the fixing block. This design ensures that the pull rod will not exceed the predetermined range during rotation, thereby guaranteeing operational stability and safety. Meanwhile, the fixing block uses a threaded installation method, facilitating user adjustment and maintenance as needed.

[0030] In summary, this application includes at least one of the following beneficial effects:

[0031] 1. The auxiliary device for opening and closing the cabinet door achieves smooth opening and closing of the cabinet door through the ingenious design of the mounting bracket, guide shaft, slider and connecting rod. While saving space by opening the cabinet door upward, the cabinet door can also be opened with relatively little effort under the drive of the compression spring.

[0032] 2. The threaded adjustment block on the guide shaft allows users to flexibly adjust the preload of the compression spring and buffer spring to accommodate doors of different weights or sizes. The pull rod design further enhances operational convenience; users can easily open and close the door by pulling the rod (with a comfortable handle) that extends beyond the door. The design of the pull rod's rotating section and fixing components also allows users to adjust it according to their usage habits and height, improving operational flexibility and personalization. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0034] Figure 2 This is a side view of Embodiment 1 of this application;

[0035] Figure 3 This is a schematic diagram of the structure of the cabinet door of Embodiment 1 of this application, which opens 95° relative to the edge of the cabinet body;

[0036] Figure 4 This is a schematic diagram of the internal structure of the slider in Embodiment 1 of this application;

[0037] Figure 5 This is a schematic diagram illustrating the structure of the tie rod and the tie rod in Embodiment 1 of this application;

[0038] Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of this application;

[0039] Figure 7 This is a schematic diagram illustrating the structure of the tie rod and the tie rod in Embodiment 2 of this application.

[0040] Explanation of reference numerals in the attached drawings: 10, housing; 11, rotating shaft; 20, housing door; 21, mounting block; 30, mounting bracket; 31, guide shaft; 32, slider; 33, graphite copper sleeve; 40, connecting rod; 41, bolt; 50, compression spring; 60, buffer spring; 70, adjusting block; 80, pull rod; 81, fixed section; 82, rotating section; 90, handle; 100, fixing component; 110, connecting shaft; 120, limit block; 130, fixing block. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail.

[0042] This application discloses an auxiliary device for opening and closing a cabinet door.

[0043] Example 1

[0044] Reference Figure 1 A door opening / closing auxiliary device is installed on a vacuum chamber 10 with a large volume. The opening of the chamber 10 faces upward, and a door 20 is rotatably mounted on the chamber 10 via a pivot 11. The auxiliary device includes a mounting bracket 30, a connecting rod 40, and a compression spring 50. The mounting bracket 30 is mounted on the side wall of the chamber 10, and a guide shaft 31 and a slider 32 slidably mounted on the guide shaft 31 are mounted on the mounting bracket 30. One end of the connecting rod 40 is rotatably connected to the slider 32, and the other end of the connecting rod 40 is rotatably connected to the door 20. When the door 20 is opened or closed, the connecting rod 40 drives the slider 32 to slide along the length of the guide shaft 31. The compression spring 50 is sleeved on the guide shaft 31.

[0045] Reference Figure 2When the door 20 is closed, the compression spring 50 is compressed. During the opening of the door 20, the compression spring 50 exerts a forward pushing force F1 on the slider 32, which is transmitted to the hinge through the connecting rod 40, forming a pulling force F2. By decomposing the pulling force F2, it can be seen that there is a downward component force F21 on the right side of the rotating shaft 11, which helps to lift the door 20 plate. Under the same force conditions, during the descent of the door 20 plate, the compression spring 50 is compressed, and the component force F21 acts as a buffer for the rapidly falling door 20. The door of the cabinet 10 with a large-volume vacuum cavity is easier to open upwards, and the upward opening design saves operating space. Even if there are obstructions on the front of the cabinet 10, the door can still be opened.

[0046] Reference Figure 1 The rotating shaft 11 is fixedly installed on the housing 10, and the housing door 20 is equipped with a mounting block 21. The rotating shaft 11 and the mounting block 21 are rotatably connected. The mounting block 21 is fixedly installed on the housing door 20 by screws. Bolts 41 are respectively passed through both ends of the connecting rod 40. One bolt 41 is threaded to the mounting block 21, and the other bolt 41 is threaded to the slider 32. The bolts 41 are provided to facilitate the disassembly and assembly of the connecting rod 40.

[0047] There are two mounting brackets 30, which are respectively installed on opposite sides of the housing 10. The connecting rod 40 and the compression spring 50 correspond one-to-one with the mounting bracket 30. The mounting bracket 30 is detachably installed on the housing 10 by screws, which facilitates the installation and removal of the entire mounting bracket 30.

[0048] Reference Figure 3 A buffer spring 60 is sleeved on the guide shaft 31, and the two opposite sides of the slider 32 are in contact with the compression spring 50 and the buffer spring 60, respectively. When the door 20 is opened to an angle of 60°~90° (adjustable), the compression spring 50 is in a relaxed state. When the door 20 is opened to an angle of 95°, the buffer spring 60 begins to compress, giving the door 20 a backward buffering force F3.

[0049] Reference Figure 4 Two adjusting blocks 70 are threaded onto the guide shaft 31. The end of the compression spring 50 away from the slider 32 abuts against one adjusting block 70, and the end of the buffer spring 60 away from the slider 32 abuts against the other adjusting block 70. Rotating the adjusting block 70 can adjust the elastic force of the compression spring 50 and the buffer spring 60, so that the compression spring 50 and the buffer spring 60 can better adapt to the different sizes of the door 20.

[0050] Reference Figure 4 In order to improve the wear resistance of the slider 32 reciprocating on the guide shaft 31, a graphite copper sleeve 33 is embedded inside the slider 32. The graphite copper sleeve 33 is limited by the upper and lower set screws, so that the graphite copper sleeve 33 can fit on the guide shaft 31, but does not affect the slider 32 sliding on the guide shaft 31.

[0051] Reference Figure 5 A door opening and closing auxiliary device also includes two pull rods 80. One end of each pull rod 80 is fixed to the door 20 with screws, and the other end extends beyond the door 20. One end of each pull rod 80 is bent downwards, and a handle 90 connects the two pull rods 80. The extended pull rods 80 reduce the upward pulling force to some extent. When the door 20 is closed downwards, the handle 90 is lower than the door 20, allowing the user to easily extend their arm and apply force to the handle 90, thus enabling the door 20 to be pressed down and closed more effectively.

[0052] The implementation principle of the auxiliary device for opening and closing a cabinet door in this application is as follows:

[0053] When the box door 20 is lifted upwards, the compression spring 50 exerts a forward pushing force F1 on the slider 32, and transmits the pushing force F1 to the hinge through the connecting rod 40, forming a pulling force F2. By decomposing the pulling force F2, the downward component force F21 on the right side of the pivot 11 helps to lift the box door 20, making it easier for people to open the box door 20. When the box door 20 is opened to more than 95°, the buffer spring 60 has a buffering effect on the slider 32, which in turn gives the box door 20 a backward buffering force F3, making it easier to open the box door 20 of the large-volume box 10. Furthermore, since the box body 10 itself occupies a certain amount of space, opening the box door 20 upwards does not take up too much space.

[0054] Example 2

[0055] The difference between Example 2 and Example 1 lies in the different settings of the pull rod 80 and the handle 90; the other structures and principles are basically the same.

[0056] Reference Figure 6 In embodiment 2, the pull rod 80 also has two rods. The pull rod 80 includes a fixed section 81 and a rotating section 82. One end of the fixed section 81 is fixedly installed on the door 20, and the other end of the fixed section 81 is rotatably connected to the rotating section 82. The ends of the two rotating sections 82 away from the fixed section 81 are respectively connected to the handle 90.

[0057] Reference Figure 7The fixed section 81 has a slot for the insertion of the rotating section 82, and a fixing assembly 100 is installed between the fixed section 81 and the rotating section 82. The fixing assembly 100 includes a connecting shaft 110, a limiting block 120, and a fixing block 130. The limiting block 120 is fixedly installed on one end of the connecting shaft 110, and the fixing block 130 is threadedly connected to the other end of the connecting shaft 110. The connecting shaft 110 passes through the fixed section 81 and the rotating section 82 and is threadedly connected to the fixing block 130. The fixing block 130 and the limiting block 120 have a clamping force on the end of the fixed section 81. The fixed section 81 deforms appropriately and fits tightly with the rotating section 82, so that the fixed section 81 and the rotating section 82 maintain a stable fixed relationship.

[0058] The rotation angle of the rotating section 82 can be adjusted as needed, so that the position of the rotating section 82 with the connecting shaft 110 as the rotation center can be changed, thereby changing the relative position of the handle 90 and the door 20. For example, if the operator is tall, the rotating section 82 can be rotated away from the door 20, so that the position of the handle 90 is raised relative to the ground, making it easier for taller operators to operate.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cabinet door opening and closing auxiliary device, characterized in that, include: Mounting bracket (30) is mounted on the box (10) with the opening facing upward. The box (10) is rotatably connected to the box door (20) via a rotating shaft (11). The mounting bracket (30) is equipped with a guide shaft (31) and a slider (32) slidably mounted on the guide shaft (31). A connecting rod (40) is rotatably mounted at one end on the door (20) and at the other end on the slider (32). When the door (20) and the box body (10) rotate relative to each other, the slider (32) slides along the guide shaft (31). Compression spring (50) is sleeved on the guide shaft (31). When the box door (20) closes the box body (10), the compression spring (50) is in a compressed state.

2. The auxiliary device for opening and closing a cabinet door according to claim 1, characterized in that: The guide shaft (31) is sleeved with a buffer spring (60), and the two opposite sides of the slider (32) are in contact with the compression spring (50) and the buffer spring (60) respectively.

3. The auxiliary device for opening and closing a cabinet door according to claim 2, characterized in that: Two adjusting blocks (70) are threaded onto the guide shaft (31). The end of the compression spring (50) away from the slider (32) abuts against one of the adjusting blocks (70), and the end of the buffer spring (60) away from the slider (32) abuts against the other adjusting block (70).

4. The auxiliary device for opening and closing a cabinet door according to claim 1, characterized in that: The mounting bracket (30) is detachably mounted on the housing (10).

5. The auxiliary device for opening and closing a cabinet door according to claim 1, characterized in that: It also includes a pull rod (80), one end of which is fixedly installed on the door (20), and the other end of which extends out of the door (20).

6. The auxiliary device for opening and closing a cabinet door according to claim 5, characterized in that: The end of the pull rod (80) extending out of the box door (20) is connected to a handle (90).

7. The auxiliary device for opening and closing a cabinet door according to claim 6, characterized in that: The end of the pull rod (80) connected to the handle (90) is bent downwards.

8. The auxiliary device for opening and closing a cabinet door according to claim 6, characterized in that: The pull rod (80) includes a fixed section (81) and a rotating section (82), the fixed section (81) and the rotating section (82) are rotatably connected, the fixed section (81) is connected to the box door (20), the rotating section (82) is connected to the handle (90), and a fixing component (100) is installed between the fixed section (81) and the rotating section (82).

9. The auxiliary device for opening and closing a cabinet door according to claim 8, characterized in that: The fixing component (100) includes: A connecting shaft (110) passes through the connection between the fixed section (81) and the rotating section (82). A limiting block (120) is fixedly installed at one end of the connecting shaft (110). A fixing block (130) is threaded onto the other end of the connecting shaft (110).

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