Cabinet door fastening mechanism for small door bodies of shielding cabinets

Abstract

The utility model discloses a cabinet door fastening mechanism suitable for small door body of shielding cabinet suitable for small door body of shielding cabinet, include: door frame fastening subassembly, it includes the pair of door frame limiting piece of interval setting along the height direction of door frame, and be provided with a inclined sliding slot in every door frame limiting piece, and the inclined sliding slot on the pair of door frame limiting piece is in parallel distribution state, door leaf fastening subassembly, it includes the pair of fastening shaft of interval setting along the height direction of door leaf suitable for one to one along the pair of inclined sliding slot movement, the linkage seat that is linked with the pair of fastening shaft simultaneously and is with door leaf swing joint, and with the linkage seat link to the drive unit suitable for driving linkage seat along the height direction of door leaf and doing lifting movement, wherein drive unit includes the door handle that is with door leaf rotation cooperation, and the connecting rod structure that is located between door handle and linkage seat.

Description

Technical Field

[0001] This utility model relates to the field of shielding technology, and in particular to a cabinet door fastening mechanism suitable for the small door of a shielding cabinet. Background Technology

[0002] Shielding cabinets have become indispensable standard accessories and basic installation components in the operation of computers, network servers, switches, small devices, electronic terminals, various communication electronic equipment, and a large number of monitoring devices. To prevent these devices from being interfered with by external electromagnetic waves during operation and to ensure their normal operation, while also preventing the leakage of information transmitted by these devices, shielding cabinets with complete shielding functions are required. The result is that a completely isolated, independent space is formed inside the shielding cabinet.

[0003] To improve the flexibility of shielding cabinet usage, for example, but not limited to, the electromagnetic shielding cabinet for printers disclosed in CN108001052B, uses a shielding door that includes a large door frame and a large door leaf that cooperate to open and close, as well as a small door frame and a small door leaf that cooperate to open and close. The large door leaf uses a manual rotation mechanism to lock and open with the large door frame, and the small door leaf uses a manual rotation mechanism to lock and open with the small door frame; the large door leaf uses a sliding block locking structure to lock and open with the large door frame.

[0004] Based on the above, for cabinets with two sets of shielding doors in existing technologies, from the perspective of cost reduction and simplifying the opening and closing operation, the structure of the small door, especially the locking and opening operation of the door leaf relative to the door frame, should not be too complicated. For example, the existing technology disclosed in CN211598065U is a shielding cabinet locking structure, which includes a shielding cabinet body, a cabinet shell on the outside of the shielding cabinet body, a cabinet door installed on one side of the cabinet shell via a hinge, four legs fixed at the bottom of the cabinet shell, a support plate fixed at the bottom of the legs, a cabinet lock embedded in the middle of one side of the cabinet door, a lock tongue on one side of the top of the cabinet lock, a first groove opened in the cabinet shell corresponding to the lock tongue position, a touch switch installed at one end of the first groove, servo motors symmetrically embedded in the top and bottom of the cabinet shell, a lead screw installed on one side of the servo motor, a locking cylinder sleeved on the lead screw, and limit blocks symmetrically arranged on both sides of the locking cylinder. The aforementioned disclosed technology is not only structurally complex, but also requires power to enable the servo motor to work in conjunction with the lead screw.

[0005] Therefore, regarding the locking and opening structure of the small door panels relative to the door frame used in the shielded cabinet, in order to simplify the structure to reduce costs and simplify the opening and closing operation process, it is necessary to design a new cabinet door fastening mechanism suitable for the small door panels of the shielded cabinet. Utility Model Content

[0006] The purpose of this utility model is to provide a cabinet door fastening mechanism suitable for small doors of shielded cabinets, so as to solve the technical problem of simplifying the opening and closing operation of cabinet doors.

[0007] The cabinet door fastening mechanism of this utility model, applicable to the small door of a shielded cabinet, is implemented as follows:

[0008] A cabinet door fastening mechanism suitable for small doors of shielded cabinets includes:

[0009] A door frame fastening assembly includes a pair of door frame limiting members spaced apart along the height direction of the door frame; each of the door frame limiting members is provided with an oblique sliding groove, and the oblique sliding grooves on the pair of door frame limiting members are distributed in parallel.

[0010] A door fastening assembly includes a pair of fastening shafts spaced apart along the height direction of the door leaf and adapted to move one-to-one along a pair of inclined slides; a linkage seat connected to the pair of fastening shafts and movably engaged with the door leaf; and a drive unit connected to the linkage seat and adapted to drive the linkage seat to move up and down along the height direction of the door leaf; wherein the drive unit includes a door handle that rotates with the door leaf and a linkage structure disposed between the door handle and the linkage seat.

[0011] In an optional embodiment of this utility model, the linkage seat is provided with a pair of strip-shaped hollow grooves suitable for one-to-one cooperation with a pair of fastening shafts;

[0012] Each of the aforementioned strip-shaped perforated slots extends along the height direction of the door leaf.

[0013] In an optional embodiment of this utility model, the door leaf is further provided with a connecting plate that slides in conjunction with each of the strip-shaped hollowed-out grooves; and

[0014] Each of the aforementioned strip-shaped hollowed-out slots is equipped with a pair of connecting plates.

[0015] In an optional embodiment of this utility model, when the door leaf is in a closed state relative to the door frame, each of the door frame limiting members is inserted into the corresponding strip-shaped hollow groove;

[0016] The dimension of each of the said strip-shaped hollowed-out grooves along the height direction of the door leaf is greater than the dimension of the door frame limiting member along the height direction of the door frame.

[0017] In an optional embodiment of this utility model, each of the door frame limiting members has a transition surface on one side edge of the groove opening corresponding to the inclined sliding groove, which is suitable for sliding cooperation with the fastening shaft.

[0018] The transition surface is parallel to the outer wall surface of the door frame facing the door leaf.

[0019] In an optional embodiment of this utility model, the door leaf is provided with a connecting plate for rotating with a door handle; and

[0020] The connecting plate protrudes partially from the side edge of the door leaf connecting linkage seat, and the door handle is rotatably engaged with the part of the connecting plate that protrudes from the door leaf.

[0021] In an optional embodiment of this utility model, a rotating seat is provided between the door handle and the connecting plate; the rotating seat is rotatably engaged with the connecting plate.

[0022] In an optional embodiment of this utility model, the linkage structure includes a first linkage connected to the rotating seat, and a second linkage connected to the first linkage; wherein

[0023] The end of the second link furthest from the first link is connected to the linkage seat.

[0024] In an optional embodiment of this invention, the length of the second link is greater than the length of the first link.

[0025] By adopting the above technical solution, this utility model has the following beneficial effects: The cabinet door fastening mechanism of this utility model, which is suitable for the small door of the shielded cabinet, realizes the lifting and lowering movement of the linkage seat along the height direction of the door leaf by rotating the door handle in the forward and reverse directions. The fastening shaft enters and leaves the inclined sliding groove of the door frame limiting member, thereby realizing the relative opening and closing of the door leaf with respect to the door frame. The overall structure is simple and the operation process is convenient and efficient. It only requires manually rotating the door handle. It is particularly suitable for application on the small door of the shielded cabinet, and the opening and closing operation is flexible and convenient. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the cabinet door fastening mechanism applicable to the small door of the shielding cabinet according to this utility model;

[0027] Figure 2 for Figure 1 Enlarged schematic diagram of part A;

[0028] Figure 3 This is a schematic diagram of the drive unit of the cabinet door fastening mechanism for the small door of the shielded cabinet according to this utility model;

[0029] Figure 4This is a schematic diagram showing the cooperation between the clamping plate and the linkage seat of the cabinet door fastening mechanism applicable to the small door of the shielded cabinet according to this utility model;

[0030] Figure 5 This is a schematic diagram showing the fit between the fastening shaft and the inclined slide groove of the cabinet door fastening mechanism for the small door of the shielded cabinet according to this utility model.

[0031] In the figure: door leaf 100, door frame 200, door frame limiting component 300, inclined slide 301, transition surface 302, linkage seat 400, strip-shaped hollow groove 401, fastening shaft 500, connecting plate 600, clamping plate 601, door handle 701, rotating seat 702, first connecting rod 703, second connecting rod 704, connecting plate 800. Detailed Implementation

[0032] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0033] Please see Figures 1 to 5 As shown, this embodiment provides a cabinet door fastening mechanism suitable for the small door of a shielding cabinet, including: a door frame fastening assembly provided on the door frame 200 and a door leaf fastening assembly provided on the door leaf 100.

[0034] Next, let's discuss the specifics. First, the door frame fastening assembly includes a pair of door frame limiting members 300 spaced apart along the height direction of the door frame 200. Each door frame limiting member 300 is provided with an oblique sliding groove 301, and the oblique sliding grooves 301 on the pair of door frame limiting members 300 are distributed in parallel. The groove opening direction of the oblique sliding groove 301 can be upward or downward along the height direction of the door frame 200. This embodiment does not make an absolute limitation on this.

[0035] The overall door frame limiting member 300 protrudes from the side end face of the door frame 200 facing the door leaf 100. The overall door frame limiting member 300 is roughly rectangular in shape and has an inclined sliding groove 301 formed inside it. The opening of the inclined sliding groove 301 extends to a right-hand corner of the rectangular door frame limiting member 300. Furthermore, the vertical distance between the bottom of the inclined sliding groove 301 and the door frame 200 is less than the vertical distance between the opening of the inclined sliding groove 301 and the door frame 200.

[0036] Secondly, the door fastening assembly includes a pair of fastening shafts 500 spaced apart along the height of the door 100 and adapted to move one-to-one along a pair of inclined slides 301; a linkage seat 400 connected to the pair of fastening shafts 500 and movably engaged with the door 100; and a drive unit connected to the linkage seat 400 and adapted to drive the linkage seat 400 to move up and down along the height of the door 100. The drive unit includes a door handle 701 that rotatably engages with the door 100, and a linkage structure located between the door handle 701 and the linkage seat 400. When the door 100 is closed relative to the door frame 200, the fastening shafts 500 move to the bottom of the inclined slides 301. When the door 100 needs to be opened relative to the door frame 200, the fastening shafts 500 move along the depth of the inclined slides 301 from the bottom to the opening until they disengage from the inclined slides 301, at which point the door 100 can be opened relative to the door frame 200. It should be noted that the fit between the fastening shaft 500 and the inclined slide groove 301 can be a sliding friction fit. Alternatively, a roller can be fitted on the fastening shaft 500 to allow sliding friction between the fastening shaft 500 and the inclined slide groove 301, thereby improving the smoothness of the door opening and closing operation.

[0037] Based on the above structure, it should also be noted that the linkage seat 400 is provided with a pair of strip-shaped perforated slots 401 suitable for one-to-one cooperation with a pair of fastening shafts 500; each strip-shaped perforated slot 401 extends along the height direction of the door leaf 100. Furthermore, when the door leaf 100 is in the closed state relative to the door frame 200, each door frame limiting member 300 is inserted into the corresponding strip-shaped perforated slot 401; the dimension of each strip-shaped perforated slot 401 along the height direction of the door leaf 100 is larger than the dimension of the door frame limiting member 300 along the height direction of the door frame 200. When the door leaf 100 is in the open state relative to the door frame 200, the door frame limiting member 300 will separate from the strip-shaped perforated slot 401. It is also necessary to explain here that each door frame limiting member 300 has a transition surface 302 on one side edge of the groove opening of the inclined slide groove 301, which is suitable for sliding engagement with the fastening shaft 500; the transition surface 302 is parallel to the outer wall surface of the door frame 200 facing the door leaf 100.

[0038] Based on the above, it should also be noted that, regarding the specific method of movable connection between the linkage seat 400 and the door leaf 100, in conjunction with the accompanying drawings, an optional embodiment is provided on the door leaf 100, which is slidably engaged with each strip-shaped hollow groove 401; and each strip-shaped hollow groove 401 is respectively provided with a pair of connecting plates 600. Specifically, each connecting plate 600 is slidably engaged with the linkage seat 400 via a clamping plate. The clamping plate includes a pair of clamping plates 601 that respectively contact two different side end faces of the linkage seat 400. The pair of clamping plates 601 are located on both sides of the strip-shaped hollow groove 401, so that the strip-shaped hollow groove 401 is clamped by the pair of clamping plates 601. The pair of clamping plates 601 are also connected by fasteners that pass through the strip-shaped hollow groove 401, so that the pair of clamping plates 601 can be fixed together with the connecting plate 600. When the linkage seat 400 moves along the height direction of the door leaf 100 under the action of the drive unit, the linkage seat 400 and the pair of clamping plates 601 form a sliding friction engagement.

[0039] Based on the above structure, it is also necessary to explain that the reason why each strip-shaped hollow groove 401 is equipped with a pair of connecting plates 600 is to limit the maximum range of motion of the linkage seat 400 during the opening and closing process of the door leaf 100 relative to the door frame 200. Referring to the accompanying drawings, in one specific optional implementation, the groove opening of the inclined slide 301 faces downward. When the door leaf 100 is closed relative to the door frame 200, for each strip-shaped hollow groove 401, a clamping plate 601 corresponding to a connecting plate 600 is located at the lower end of the strip-shaped hollow groove 401, thereby preventing the linkage seat 400 from moving upward along the height direction of the door leaf 100. During the process of the door leaf 100 being opened relative to the door frame 200, when the door frame limiting member 300 is completely disengaged from the state of the strip-shaped hollow groove 401, for each strip-shaped hollow groove 401, a clamping plate 601 corresponding to a connecting plate 600 is located at the top end of the strip-shaped hollow groove 401, thereby preventing the linkage seat 400 from continuing to move downward along the height direction of the door leaf 100. In other words, the cooperation between the connecting plate 600 and the strip-shaped hollow groove 401 not only limits the movement trajectory of the linkage seat 400, making it only able to move up and down along the height direction of the door leaf 100, but also limits the maximum angle range of the door handle 701 in the forward and reverse rotation.

[0040] Finally, it should be noted that the door leaf 100 is provided with a connecting plate 800 for rotatingly engaging with the door handle 701; and the connecting plate 800 partially protrudes from the side edge of the door leaf 100 connecting linkage seat 400, and the door handle 701 and the part of the connecting plate 800 protruding from the door leaf 100 are rotatably engaged. A rotating seat 702 is provided between the door handle 701 and the connecting plate 800; the rotating seat 702 is rotatably engaged with the connecting plate 800.

[0041] Based on the above structure, the linkage structure further includes a first link 703 connected to the rotating seat 702 and a second link 704 connected to the first link 703; wherein the end of the second link 704 away from the first link 703 is engaged with the linkage seat 400. The length of the second link 704 is greater than the length of the first link 703. Based on this structure, and considering the perspective shown in the attached drawings, when the door leaf 100 needs to be gradually opened relative to the door frame 200 from a closed state, the rotating seat 702 rotates under the action of the door handle 701. This rotating seat 702 drives one end of the first link 703 to move away from the edge of the door leaf 100, and then the first link 703 pulls the second link 704. At this time, the linkage seat 400, under the constraint of the connecting plate 600, can only produce a downward movement along the height direction of the door leaf 100. Conversely, when the door leaf 100 is to be gradually closed relative to the door frame 200 from the open state, the rotating seat 702 rotates under the action of the door handle 701. The rotating seat 702 will drive one end of the first connecting rod 703 to move towards the side closer to the edge of the door leaf 100. Then the first connecting rod 703 pulls the second connecting rod 704. At this time, the linkage seat 400 can only produce an upward movement along the height direction of the door leaf 100 under the restriction of the connecting plate 600.

[0042] In summary, for the cabinet door fastening mechanism of the small door of the shielded cabinet in this embodiment, the linkage seat 400 moves up and down along the height direction of the door leaf 100 by rotating the door handle 701 in the forward and reverse directions. The fastening shaft 500 enters and leaves the inclined slide groove 301 of the door frame limiting member 300, thereby realizing the relative opening and closing of the door leaf 100 relative to the door frame 200. The overall structure is simple and the opening and closing operation is flexible and convenient, requiring only manual rotation of the door handle 701.

[0043] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0044] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0048] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A cabinet door fastening mechanism for a small door body of a shielding cabinet, characterized in that, include: A door frame fastening assembly includes a pair of door frame limiting members spaced apart along the height direction of the door frame; each of the door frame limiting members is provided with an oblique sliding groove, and the oblique sliding grooves on the pair of door frame limiting members are distributed in parallel. A door fastening assembly includes a pair of fastening shafts spaced apart along the height direction of the door leaf and adapted to move one-to-one along a pair of inclined slides; a linkage seat connected to the pair of fastening shafts and movably engaged with the door leaf; and a drive unit connected to the linkage seat and adapted to drive the linkage seat to move up and down along the height direction of the door leaf; wherein the drive unit includes a door handle that rotates with the door leaf and a linkage structure disposed between the door handle and the linkage seat.

2. The cabinet door fastening mechanism for the small door of a shielded cabinet according to claim 1, characterized in that, The linkage seat is provided with a pair of strip-shaped hollow grooves suitable for one-to-one cooperation with a pair of fastening shafts; Each of the aforementioned strip-shaped perforated slots extends along the height direction of the door leaf.

3. The cabinet door fastening mechanism for the small door of a shielded cabinet according to claim 2, characterized in that, The door leaf is also provided with a connecting plate that slides in conjunction with each of the strip-shaped hollowed-out slots; and Each of the aforementioned strip-shaped hollowed-out slots is equipped with a pair of connecting plates.

4. The cabinet door fastening mechanism for the small door of a shielded cabinet according to claim 1 or 2, characterized in that, When the door leaf is closed relative to the door frame, each of the door frame limiting members is inserted into the corresponding strip-shaped hollow groove; The dimension of each of the said strip-shaped hollowed-out grooves along the height direction of the door leaf is greater than the dimension of the door frame limiting member along the height direction of the door frame.

5. The cabinet door fastening mechanism for the small door of a shielded cabinet according to claim 4, characterized in that, Each of the door frame limiting members has a transition surface on one side edge of the groove opening corresponding to the inclined slide groove, which is suitable for sliding cooperation with the fastening shaft. The transition surface is parallel to the outer wall surface of the door frame facing the door leaf.

6. The cabinet door fastening mechanism for the small door of a shielded cabinet according to claim 1, characterized in that, The door leaf is provided with a connecting plate for rotating with a door handle; and The connecting plate protrudes partially from the side edge of the door leaf connecting linkage seat, and the door handle is rotatably engaged with the part of the connecting plate that protrudes from the door leaf.

7. The cabinet door fastening mechanism for the small door of a shielded cabinet according to claim 6, characterized in that, A rotating seat is provided between the door handle and the connecting plate; the rotating seat is rotatably engaged with the connecting plate.

8. The cabinet door fastening mechanism for the small door of a shielded cabinet according to claim 7, characterized in that, The linkage structure includes a first linkage connected to the rotating seat, and a second linkage connected to the first linkage; wherein The end of the second link furthest from the first link is connected to the linkage seat.

9. The cabinet door fastening mechanism for the small door of a shielded cabinet according to claim 8, characterized in that, The length of the second link is greater than the length of the first link.

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