cabinet
By setting guide plates and locking rods at the top and bottom of the cabinet door, the structural instability of the cabinet during vibration is solved, achieving higher rigidity and stability and reducing the risk of the door accidentally opening.
Patent Information
- Application Number
- CN202522435635.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-17
AI Technical Summary
When the existing cabinet is subjected to external vibration, the single-point locking structure causes the door to shake violently, the latch is easy to dislodge, and the door may accidentally pop open, indicating insufficient structural rigidity and stability.
The dual-point locking mechanism, which employs guide plates and locking rods, forms a stable constraint system by setting guide plates and locking rods at the upper and lower ends of the door body. This system disperses and absorbs stress, thereby enhancing the structural rigidity and stability.
It effectively disperses stress, improves the structural rigidity and stability of the cabinet, reduces the risk of the door accidentally opening, and enhances vibration resistance.
Smart Images

Figure CN224935922U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cabinet structure technology, and in particular to a cabinet. Background Technology
[0002] In applications such as data centers and communication base stations, server racks need to provide a stable operating environment and physical protection for the internal electronic equipment. Currently, the vast majority of server racks on the market use a single-point locking structure for closure. Specifically, a lock is installed on the door, which uses a rotatable latch to hook or insert into a corresponding lock hole or slot on the rack frame when closed, thus locking the door. However, because the locking point is singular, the locking force of the entire door is concentrated in a very small area. When the rack encounters external vibrations, such as during simulated earthquake tests or actual earthquakes, the entire rack will experience severe shaking and deformation. At this time, complex relative motion will occur between the single-point locked door and the rack, causing the door to shake violently. This shaking will generate a huge instantaneous force between the single latch and the lock hole, which can easily cause the latch to disengage from the lock hole, causing the door to accidentally pop open. Utility Model Content
[0003] The main purpose of this utility model is to propose a cabinet that aims to improve the structural rigidity and stability of the entire cabinet.
[0004] To achieve the above objectives, the cabinet proposed in this utility model includes: Cabinet; The door is hinged to the cabinet. A door lock, wherein the door lock is disposed on the door body, and the door lock has a rotatably configured latch; A locking mechanism, comprising a guide plate and a locking rod, wherein the guide plate is disposed on the door body, one end of the locking rod is connected to the latch, and the other end of the locking rod passes through the guide plate; When the latch rotates to lock with the cabinet, the end of the locking rod away from the latch is connected to the cabinet.
[0005] In one embodiment, the cabinet includes two locking mechanisms, two guide plates are respectively disposed at the upper and lower ends of the door, and each locking rod passes through one of the guide plates.
[0006] In one embodiment, the cabinet further includes a positioning member disposed on the door body and located between the guide plate and the locking tongue. The positioning member has a positioning hole, and the locking rod passes through the positioning hole.
[0007] In one embodiment, the positioning member has two positioning portions, each of which has a positioning hole, and the locking rod passes through the two positioning holes in sequence.
[0008] In one embodiment, the cabinet includes a plurality of positioning elements, which are spaced apart between the guide plate and the locking tongue.
[0009] In one embodiment, the cabinet further includes a damping rubber ring, which is fitted onto the inner peripheral wall of the positioning hole.
[0010] In one embodiment, one end of the locking rod is a flat connecting part, the locking tongue is provided with a mounting block, and the cabinet also includes screws and nuts, the screws passing through the flat connecting part and the mounting block in sequence and being screwed into the nuts.
[0011] In one embodiment, the cabinet is provided with a locking hole, and when the latch is rotated to lock with the cabinet, the end of the locking rod away from the latch passes through the locking hole.
[0012] In one embodiment, the locking hole is an oblong hole.
[0013] In one embodiment, the cabinet further includes a plurality of buffer pads disposed on the side of the door facing the cabinet.
[0014] In the technical solution of this utility model, by setting a guide plate and a locking rod, there are two locking points between the door and the cabinet when the cabinet is closed, located at different positions on the door, which together form a stable constraint system. When subjected to external impact, it can effectively disperse and absorb stress, improve the structural rigidity and stability of the entire cabinet, and reduce the risk of the door accidentally opening. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0016] Figure 1 A schematic diagram of the structure of an embodiment of the cabinet provided by this utility model; Figure 2 This is a schematic diagram of the structure when the locking bar is connected to the cabinet. Figure 3 A schematic diagram of a door body embodiment provided by this utility model; Figure 4 forFigure 3 A magnified view of a section at point A in the middle; Figure 5 for Figure 3 A magnified view of a section at point B in the middle.
[0017] Explanation of icon numbers: 1000, Cabinet; 1, Cabinet body; 11, Locking hole; 2, Door body; 3, Door lock; 31, Lock tongue; 32, Mounting block; 4, Guide plate; 5, Locking rod; 51, Flat connecting part; 6, Positioning component; 7, Damping rubber ring; 8, Buffer pad.
[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0022] This utility model proposes a cabinet 1000.
[0023] Please see Figure 1 ,Figure 2 , Figure 3 as well as Figure 4 In one embodiment of this utility model, the cabinet 1000 includes a cabinet body 1, a door body 2, a door lock 3, and a locking mechanism; the door body 2 is hinged to the cabinet body 1; the door lock 3 is located on the door body 2 and has a rotatable locking tongue 31; the locking mechanism includes a guide plate 4 and a locking rod 5, the guide plate 4 is located on the door body 2, one end of the locking rod 5 is connected to the locking tongue 31, and the other end of the locking rod 5 passes through the guide plate 4; wherein, when the locking tongue 31 rotates to lock with the cabinet body 1, the end of the locking rod 5 away from the locking tongue 31 is connected to the cabinet body 1.
[0024] Cabinet 1, serving as the main frame structure of rack 1000, is typically constructed from bent and welded sheet metal or assembled from various parts, and is used to house and support electronic equipment. The door frame of cabinet 1 usually has a lock hole or latch for engaging with the latch 31. Simultaneously, a locking hole 11 is provided at a position corresponding to the locking bar 5.
[0025] Door 2 is hinged to one side of cabinet 1 and can be opened and closed relative to cabinet 1.
[0026] Door lock 3 is installed on door body 2, and door lock 3 has a rotatable bolt 31. When the user operates door lock 3 with a key or handle, the bolt 31 will rotate between a locked position and an unlocked position. In the locked position, the bolt 31 will hook or insert into the key hole on the crossbeam of cabinet body 1 to achieve initial fixation.
[0027] The guide plate 4 is fixedly installed on the inner side of the door body 2. A guide hole is provided on the guide plate 4. The function of the guide hole is to guide and constrain the movement of the locking rod 5, ensuring that the locking rod 5 can only move in the direction defined by the guide hole, and preventing it from deviating or shaking during the movement.
[0028] One end of the locking rod 5 is rotatably connected to the locking tongue 31. Therefore, when the locking tongue 31 rotates, it will cause one end of the locking rod 5 to follow it in an arc trajectory. The other end of the locking rod 5 passes through the guide hole on the guide plate 4.
[0029] When the user operates the door lock 3 to rotate the bolt 31 to the locked position, since one end of the locking rod 5 is hinged to the bolt 31, this end is driven by the bolt 31 to perform an arc-shaped movement. This arc-shaped movement forces the locking rod 5 to produce a complex composite movement in the guide hole of the guide plate 4: the locking rod 5 is affected by the arc-shaped movement on the one hand, and is forcibly constrained by the guide hole on the other hand. By designing the guide hole as an elongated hole, an arc-shaped hole, or a round hole with a specific gap to adapt to this movement trajectory, this composite movement can be ultimately guided and transformed into the movement in which the locking rod 5 can be inserted into the locking hole 11.
[0030] In the technical solution of this utility model, by setting the guide plate 4 and the locking rod 5, when the cabinet 1000 is closed, there are two locking points between the door 2 and the cabinet 1, located at different positions on the door 2, which together form a stable constraint system. When subjected to external impact, it can effectively disperse and absorb stress, improve the structural rigidity and stability of the entire cabinet 1000, and reduce the risk of the door 2 accidentally opening.
[0031] Specifically, in one embodiment of this utility model, please refer to... Figure 3 The cabinet 1000 includes two locking mechanisms. Two guide plates 4 are respectively located at the upper and lower ends of the door 2, and each locking rod 5 passes through a guide plate 4. Two complete locking mechanisms are set along the height of the door 2. By setting locking points at the upper and lower ends of the door 2, and working together with the latch 31 of the door lock 3 in the middle, a stable constraint system with at least three locking points is formed. This is equivalent to firmly fixing the door 2 to the frame of the cabinet 1 through the upper, middle, and lower points, effectively transforming the original possible out-of-plane sway into rigid support of the entire plane, greatly enhancing the overall rigidity and stability of the door 2 under vibration.
[0032] Furthermore, in one embodiment of this utility model, please refer to... Figure 3 and Figure 4 The cabinet 1000 also includes a positioning component 6, which is located on the door body 2 between the guide plate 4 and the locking tongue 31. The positioning component 6 has a positioning hole through which the locking rod 5 passes. The positioning component 6, located on the door body 2 between the locking tongue 31 and the guide plate 4, provides an intermediate support point for the locking rod 5. The positioning hole formed on the positioning component 6 maintains a precise fit clearance with the locking rod 5, not decisively controlling the starting and ending points of the locking rod 5's movement, but rather playing a role in straightening, stabilizing, and limiting the middle section of the locking rod 5. In a vibrating environment, the relatively long locking rod 5 is itself a component that may flutter due to vibration. The addition of the positioning component 6 is equivalent to shortening the effective free length of the locking rod 5, greatly enhancing its rigidity, and effectively preventing mechanism failure caused by rod fatigue or excessive deformation under continuous vibration. At the same time, it reduces abnormal wear between the locking rod 5 and the guide plate 4 caused by shaking, extending its service life.
[0033] Specifically, in one embodiment of this utility model, the positioning member 6 has two positioning parts, each with a positioning hole, through which the locking rod 5 passes sequentially. The two positioning parts can be two lugs integrally formed on a base, or two independent bushings fixed to the same mounting plate by welding, riveting, or other methods. The two positioning holes are coaxially arranged. Thus, the movement path of the locking rod 5 is now strictly limited by three points: the hinge point of the locking tongue 31 at the starting end, the two positioning holes in the middle, and the guide hole of the guide plate 4 at the end, which constitutes a very stable movement system.
[0034] Furthermore, in one embodiment of this utility model, the cabinet 1000 includes multiple positioning elements 6, which are spaced apart between the guide plate 4 and the latch 31. Specifically, there are two or more positioning elements 6, which are distributed and fixedly installed on the door 2 at equal or non-equal intervals along the axial direction of the locking rod 5 between the latch 31 and the guide plate 4. The multiple positioning elements 6 divide the originally long suspended section of the locking rod 5 into several shorter intervals, and each positioning element 6 is responsible for constraining the lateral displacement of the locking rod 5 at its location. These spaced positioning elements 6 together form a continuous, ultra-long guide channel that starts near the latch 31 and extends to the guide plate 4, providing full support and constraint for the entire movement path of the locking rod 5, eliminating any low-frequency or high-frequency vibrations that the locking rod 5 may generate during the medium to long stroke.
[0035] Furthermore, in one embodiment of this utility model, please refer to... Figure 4 The cabinet 1000 also includes a damping rubber ring 7, which is fitted onto the inner circumferential wall of the positioning hole. The damping rubber ring 7 is a ring-shaped component made of rubber, silicone, or other elastic materials with high damping properties. It is pressed into, bonded to, or otherwise fixed within the positioning hole by an interference fit, serving as a flexible interface and buffer layer between the locking rod 5 and the rigid positioning hole. When the cabinet 1000 vibrates, high-frequency micro-amplitude relative motion occurs between the locking rod 5 and the positioning component 6. The damping rubber ring 7 utilizes its elastic deformation capability to effectively absorb and dissipate this vibrational energy, thereby significantly suppressing the vibration transmission and amplification of the entire locking mechanism. Furthermore, a damping rubber ring 7 is also correspondingly provided within the guide hole of the guide plate 4.
[0036] Specifically, in one embodiment of this utility model, please refer to... Figure 5One end of the locking lever 5 is a flat connecting part 51, and the locking tongue 31 is provided with a mounting block 32. The cabinet 1000 also includes screws and nuts. The screws pass through the flat connecting part 51 and the mounting block 32 in sequence and are screwed into the nut. The end of the locking lever 5 used to connect with the locking tongue 31 is machined or forged into a flat connecting part 51. This part is plate-shaped and has a through hole. The flat structure provides a stable and reliable mounting surface. A mounting block 32 is provided on the locking tongue 31. The mounting block 32 can be integrally formed with the locking tongue 31 or it can be a separately manufactured component that is fixedly connected to the locking tongue 31. The mounting block 32 is also machined with a through hole for alignment with the flat connecting part 51. The screws pass through the through holes on the flat connecting part 51 and the mounting block 32 in sequence and are finally screwed into the nut, thereby securely connecting the flat connecting part 51 of the locking lever 5 to the mounting block 32 of the locking tongue 31. The rotational movement of the locking tongue 31 is directly and losslessly transmitted to the flat connecting part 51 of the locking rod 5 via the mounting block 32 and screw connection, driving its movement. The mechanical preload provided by the screw and nut ensures the rigidity of the connection point, while the flat contact surface provides significant friction. This combination effectively resists loosening of the connection point in a vibrating environment, preventing locking function failure due to loosening of the connection point.
[0037] Furthermore, in one embodiment of this utility model, please refer to... Figure 2 The cabinet body 1 is provided with a locking hole 11. When the locking tongue 31 is rotated to lock with the cabinet body 1, the end of the locking rod 5 away from the locking tongue 31 passes through the locking hole 11. The locking hole 11 is a through hole or blind hole provided on the frame of the cabinet body 1. When the locking tongue 31 is locked, the end of the locking rod 5 passes through this locking hole 11. Moreover, the locking hole 11 is set as an elongated hole, which provides the necessary allowable deviation range to ensure that the locking rod 5 can still be smoothly inserted even if there is a slight misalignment, thus reducing the assembly difficulty.
[0038] Specifically, in one embodiment of this utility model, please refer to... Figure 4 The cabinet 1000 also includes multiple buffer pads 8, which are located on the side of the door 2 facing the cabinet 1. The buffer pads 8 are made of rubber, silicone, polyurethane, or other materials with high damping coefficients and elasticity, and are distributed at certain intervals along the inner perimeter of the door 2, serving as an elastic medium between the door 2 and the cabinet 1. When the door 2 is closed, before the latch 31 locks, these buffer pads 8 contact the frame of the cabinet 1 before the metal structure and are slightly compressed, creating a cushioning effect. Furthermore, the buffer pads 8 can efficiently absorb and dissipate high-frequency vibration energy transmitted to the door panel through the cabinet 1 structure, achieving vibration reduction and sound insulation effects.
[0039] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A server rack, characterized in that, include: Cabinet; The door is hinged to the cabinet. A door lock, wherein the door lock is disposed on the door body, and the door lock has a rotatably configured latch; A locking mechanism, comprising a guide plate and a locking rod, wherein the guide plate is disposed on the door body, one end of the locking rod is connected to the latch, and the other end of the locking rod passes through the guide plate; When the latch rotates to lock with the cabinet, the end of the locking rod away from the latch is connected to the cabinet.
2. The cabinet as described in claim 1, characterized in that, The cabinet includes two locking mechanisms, and two guide plates are respectively located at the upper and lower ends of the door, with each locking rod passing through one of the guide plates.
3. The cabinet as described in claim 1, characterized in that, The cabinet also includes a positioning element, which is disposed on the door and located between the guide plate and the locking tongue. The positioning element has a positioning hole, and the locking rod passes through the positioning hole.
4. The cabinet as described in claim 3, characterized in that, The positioning member has two positioning parts, each of which has a positioning hole, and the locking rod passes through the two positioning holes in sequence.
5. The cabinet as described in claim 3, characterized in that, The cabinet includes a plurality of positioning elements, which are spaced apart between the guide plate and the locking tongue.
6. The cabinet as described in claim 3, characterized in that, The cabinet also includes a damping rubber ring, which is fitted onto the inner circumferential wall of the positioning hole.
7. The cabinet as described in claim 1, characterized in that, One end of the locking rod is a flat connecting part, the locking tongue is provided with a mounting block, and the cabinet also includes screws and nuts. The screws pass through the flat connecting part and the mounting block in sequence and are screwed into the nuts.
8. The cabinet as described in claim 1, characterized in that, The cabinet is provided with a locking hole. When the latch is rotated to lock with the cabinet, the end of the locking rod away from the latch passes through the locking hole.
9. The cabinet as described in claim 8, characterized in that, The locking hole is an oblong hole.
10. The cabinet as described in claim 1, characterized in that, The cabinet also includes multiple buffer pads, which are located on the side of the door facing the cabinet.
