A low-voltage power distribution cabinet hinge connection structure

Abstract

The utility model belongs to power distribution cabinet accessory technical field especially is a kind of low-voltage power distribution cabinet pivot type door hinge connecting structure, including connecting leaf piece one and connecting leaf piece two, both ends of connecting leaf piece one and connecting leaf piece two are respectively fixedly welded with butt joint barrel two and butt joint barrel one, the centre of butt joint barrel one and butt joint barrel two is inserted with inserting rod, the periphery of inserting rod is equipped with torsion spring, the utility model connects by limiting component, and the elastic reset mechanism design of limiting component makes installation and dismounting process extremely convenient;When needing to install T-shaped mounting plate, just need to operate lap slide plate, make limiting insert plate exit limiting slot by overcoming the elastic force of spring, after T-shaped mounting plate is placed into rectangular through slot suitable position, lap slide plate is loosened, and the elastic force of spring will make sliding sleeve block reset, to drive lap slide plate and limiting insert plate reset, make limiting insert plate insert limiting slot, complete installation.

Description

Technical Field

[0001] This utility model relates to the technical field of power distribution cabinet accessories, and in particular to a pivot-type door hinge connection structure for low-voltage power distribution cabinets. Background Technology

[0002] In power systems, low-voltage switchgear is an indispensable key piece of equipment, undertaking important functions such as distributing electrical energy and controlling circuit switching. It is widely used in industrial, commercial, and civil buildings. The cabinet door, as a crucial component, is connected to the cabinet body via hinges to facilitate opening and closing, thereby enabling the installation, maintenance, and repair of the equipment inside. However, traditional hinge connection structures for low-voltage switchgear doors have numerous problems, severely impacting the performance and maintenance efficiency of the switchgear.

[0003] In terms of installation and disassembly, traditional hinge connection structures are typically complex in design and cumbersome in installation, requiring various tools and specialized skills. For example, some hinge fixing components require screws for fastening, necessitating precise alignment of the threaded holes during installation, which is difficult and time-consuming. Furthermore, when maintaining or replacing internal components of low-voltage distribution cabinets, requiring the removal of cabinet doors, the disassembly process of traditional hinge connection structures is equally difficult. Screws may rust or strip due to long-term use, making disassembly difficult and sometimes even requiring damage to the structure to remove the cabinet door. This not only increases maintenance costs but may also damage the hinges, affecting subsequent normal use. This inconvenient installation and disassembly method requires maintenance personnel to spend a significant amount of time and effort on routine maintenance and emergency repairs, reducing work efficiency, extending equipment downtime, and causing numerous inconveniences to production and daily life.

[0004] In terms of structural stability, traditional hinge connection structures also have significant shortcomings. Some hinges lack an effective spring-back mechanism, resulting in uneven and unsmooth opening and closing of the cabinet door, easily leading to jamming or wobbling. This not only affects the user experience of the cabinet door but may also cause collisions and damage to the equipment inside. Furthermore, the fixing method of the hinge connection is not robust enough, and it is prone to loosening due to external forces or long-term vibration during use. For example, the connection between the hinge and the cabinet body and door may gradually loosen due to frequent opening and closing operations, causing the cabinet door to fail to close tightly, creating gaps that allow dust, moisture, etc., to enter the cabinet, affecting the normal operation of the equipment inside and even causing safety accidents. This unstable structure reduces the overall reliability and safety of the low-voltage distribution cabinet, shortens the equipment's lifespan, and increases the cost of maintenance and replacement. Therefore, we provide a swivel-type door hinge connection structure for low-voltage distribution cabinets. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a pivot-type door hinge connection structure for low-voltage distribution cabinets, which more accurately solves the problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution:

[0007] The utility model proposes a pivot hinge connection structure for a low-voltage distribution cabinet, including a first connecting plate and a second connecting plate. Both ends of the first connecting plate and the second connecting plate are respectively fixedly welded with a second connecting cylinder and a first connecting cylinder. A rod is inserted into the center of the first connecting cylinder and the second connecting cylinder. A torsion spring is sleeved around the rod, and both ends of the torsion spring are respectively engaged with the surfaces of the first connecting plate and the second connecting plate.

[0008] Both the first connecting plate and the second connecting plate have rectangular through slots on their surfaces. A T-shaped mounting plate is installed on the inner wall of the rectangular through slot. The surface of the T-shaped mounting plate has a mounting groove. A limit component is connected between the rectangular through slot and the T-shaped mounting plate.

[0009] Furthermore, the limiting component includes a limiting slot formed on the end wall of the rectangular through groove and a sliding groove formed on the surface of the T-shaped mounting plate. An overlapping sliding plate is slidably connected to the inner wall of the sliding groove. A limiting insert plate is fixedly installed on the surface of the overlapping sliding plate. An elastic reset mechanism is connected between the sliding groove and the overlapping sliding plate.

[0010] Furthermore, the elastic reset mechanism includes a strip-shaped placement groove formed on the inner side wall of the sliding groove, a fixing rod fixedly connected between the two end walls of the strip-shaped placement groove, a spring sleeved around the fixing rod, and a sliding sleeve block slidably sleeved around the fixing rod.

[0011] Furthermore, the sliding sleeve is slidably connected to the inner wall of the strip-shaped mounting groove, and the opposite surfaces of the two sliding sleeves are fixedly connected to the two end surfaces of the overlapping sliding plate.

[0012] Furthermore, one end of the limiting plate penetrates the end wall of the sliding groove and is inserted into the inner wall of the limiting slot, and the opening size of the limiting slot is compatible with the design size of the limiting plate.

[0013] Furthermore, one end of the spring is fixedly connected to the end wall of the strip-shaped mounting groove, and the other end of the spring is fixedly connected to one end surface of the sliding sleeve block.

[0014] The beneficial effects of this utility model are:

[0015] This invention utilizes a limiting component for connection, and the elastic reset mechanism of the limiting component makes installation and disassembly extremely convenient. When installing the T-shaped mounting plate, simply operate the overlapping sliding plate to overcome the spring's elastic force, causing the limiting plate to exit the limiting slot. After placing the T-shaped mounting plate into the appropriate position in the rectangular through slot, release the overlapping sliding plate. The spring's elastic force will reset the sliding block, thereby resetting the overlapping sliding plate and the limiting plate, allowing the limiting plate to insert into the limiting slot, completing the installation. Disassembly is similar; simply operate the overlapping sliding plate to easily pull out the limiting plate and remove the T-shaped mounting plate. This convenient installation and disassembly method significantly saves maintenance and replacement time, improves work efficiency, and reduces maintenance costs, making it particularly suitable for scenarios requiring frequent maintenance or replacement of internal components in low-voltage distribution cabinets.

[0016] This invention ensures the stability of the low-voltage distribution cabinet's hinged door connection structure through a snap-fit ​​design between a torsion spring and connecting plates one and two, as well as a stable connection between the T-shaped mounting plate and the rectangular through-slot using a limiting component. The torsion spring provides connecting plates one and two with a certain degree of rebound, allowing the cabinet door to open and close smoothly and steadily, and maintaining a tight seal after closing to prevent shaking or abnormal noise caused by loosening. Simultaneously, the tight fit between the limiting plate and the limiting slot in the limiting component, along with the stabilizing effect of the elastic reset mechanism on the limiting plate, ensures the T-shaped mounting plate is firmly fixed within the rectangular through-slot, preventing shaking or displacement of the T-shaped mounting plate during use, thus guaranteeing the stability of the entire connection structure. Attached Figure Description

[0017] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the T-shaped mounting plate after it has been removed in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the T-shaped mounting plate in one embodiment of the present invention;

[0020] Figure 4 This is one embodiment of the present utility model. Figure 3 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1. Connecting blade one; 2. Connecting blade two; 3. Connecting cylinder one; 4. Connecting cylinder two; 5. Insert rod; 6. Torsion spring; 7. Rectangular through slot; 8. T-shaped mounting plate; 9. Mounting slot; 10. Limiting slot; 11. Sliding groove; 12. Strip-shaped placement slot; 13. Fixing rod; 14. Spring; 15. Sliding sleeve; 16. Overlapping slide plate; 17. Limiting insert plate. Detailed Implementation

[0022] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0023] Example

[0024] like Figures 1-4 As shown in the figure, an embodiment of this utility model proposes a hinged connection structure for a low-voltage distribution cabinet, including a connecting plate 1 and a connecting plate 2. In specific manufacturing, connecting cylinders 4 and 3 are respectively fixedly welded to both ends of connecting plate 1 and connecting plate 2. Next, a rod 5 is inserted into the center of connecting cylinders 3 and 4, passing through them. Then, a torsion spring 6 is fitted around the rod 5, and both ends of the torsion spring 6 are engaged with the surfaces of connecting plate 1 and connecting plate 2 to ensure stable operation. Simultaneously, rectangular slots 7 are formed on the surfaces of connecting plate 1 and connecting plate 2, a T-shaped mounting plate 8 is installed on the inner wall of the rectangular slots 7, and a mounting groove 9 is formed on the surface of the T-shaped mounting plate 8. Finally, the rectangular through slot 7 and the T-shaped mounting plate 8 are connected by the limiting component to complete the initial assembly of the low-voltage distribution cabinet pivot door hinge connection structure. At this time, the structure can maintain the basic connection shape, and the torsion spring 6 can make the connecting leaf 1 and connecting leaf 2 have a certain rebound characteristic.

[0025] Furthermore, the limiting component includes a limiting slot 10 formed on the end wall of the rectangular through groove 7 and a sliding groove 11 formed on the surface of the T-shaped mounting plate 8. During manufacturing, the sliding groove 11 is first formed on the surface of the T-shaped mounting plate 8, and then an overlapping sliding plate 16 is slidably connected to the inner wall of the sliding groove 11, ensuring that the overlapping sliding plate 16 can slide smoothly within the sliding groove 11. Next, a limiting insert 17 is fixedly installed on the surface of the overlapping sliding plate 16, making the limiting insert 17 firmly connected to the overlapping sliding plate 16. Simultaneously, an elastic reset mechanism is connected between the sliding groove 11 and the overlapping sliding plate 16. After assembly, when it is necessary to fix the position of the T-shaped mounting plate 8 within the rectangular through groove 7, the elastic reset mechanism is operated to insert the limiting insert 17 into the limiting slot 10, achieving a stable connection between the T-shaped mounting plate 8 and the rectangular through groove 7. At this time, the T-shaped mounting plate 8 will not wobble freely within the rectangular through groove 7.

[0026] Furthermore, the elastic reset mechanism includes a strip-shaped placement groove 12 formed on the inner wall of the sliding groove 11. During manufacturing, the strip-shaped placement groove 12 is formed on the inner wall of the sliding groove 11, and then a fixing rod 13 is fixedly connected between the two end walls of the strip-shaped placement groove 12, ensuring that the two ends of the fixing rod 13 are firmly connected to the two end walls of the strip-shaped placement groove 12. Next, a spring 14 is sleeved around the fixing rod 13, and a sliding sleeve block 15 is slidably sleeved around the fixing rod 13, allowing the sliding sleeve block 15 to slide freely on the fixing rod 13. After assembly, when the overlapping slide plate 16 is operated, the sliding sleeve block 15 will slide on the fixing rod 13, and the spring 14 will be compressed or stretched, thereby generating elastic force to provide power for the insertion and removal of the limiting insert 17, ensuring that the limiting component can function normally.

[0027] Furthermore, the sliding sleeve 15 is slidably connected to the inner wall of the strip-shaped mounting groove 12 to ensure that the sliding sleeve 15 can slide smoothly within the strip-shaped mounting groove 12. Then, the opposing surfaces of the two sliding sleeves 15 are fixedly connected to the two end surfaces of an overlapping sliding plate 16, which can be done by welding or other reliable connection methods. After assembly, when the overlapping sliding plate 16 is pushed or pulled, the overlapping sliding plate 16 will drive the sliding sleeve 15 to slide on the fixed rod 13, and the spring 14 will be compressed or stretched, thereby providing power for the reset of the overlapping sliding plate 16, ensuring that the limiting insert 17 can be accurately inserted into or pulled out of the limiting slot 10, realizing the reliable connection and disassembly of the T-shaped mounting plate 8 and the rectangular through groove 7.

[0028] Furthermore, during assembly, the positions of the limiting plate 17 and the limiting slot 10 are precisely adjusted to ensure that the limiting plate 17 can be smoothly inserted into the limiting slot 10. Simultaneously, the opening dimensions of the limiting slot 10 and the design dimensions of the limiting plate 17 are ensured to be compatible, meaning that after the limiting plate 17 is inserted into the limiting slot 10, there is no noticeable gap between them, allowing for a tight fit. After assembly, when the limiting plate 17 is inserted into the limiting slot 10, the T-shaped mounting plate 8 is firmly fixed within the rectangular through slot 7, preventing shaking or displacement, thus ensuring the stability of the entire low-voltage distribution cabinet's hinged door connection structure.

[0029] Furthermore, one end of the spring 14 is fixedly connected to the end wall of the strip-shaped mounting groove 12, which can be achieved by welding or other reliable connection methods to ensure a firm connection between the spring 14 and the end wall of the strip-shaped mounting groove 12. Simultaneously, the other end of the spring 14 is fixedly connected to one end surface of the sliding sleeve block 15, also using a reliable connection method. After assembly, when the sliding sleeve block 15 slides on the fixed rod 13, the spring 14 will be compressed or stretched, generating elastic force. When the external force disappears, the elastic force of the spring 14 will cause the sliding sleeve block 15 to reset, thereby driving the overlapping slide plate 16 and the limiting insert plate 17 to reset, ensuring that the limiting assembly can work normally and achieving a stable connection and flexible disassembly between the T-shaped mounting plate 8 and the rectangular through groove 7.

[0030] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. A low-voltage power distribution cabinet hinge connection structure of a rotating shaft type door, comprising a connecting leaf one (1) and a connecting leaf two (2), both ends of the connecting leaf one (1) and the connecting leaf two (2) are respectively fixedly welded with a butt joint cylinder two (4) and a butt joint cylinder one (3), characterized in that, A rod (5) is inserted into the center of the first docking cylinder (3) and the second docking cylinder (4). A torsion spring (6) is sleeved around the outside of the rod (5), and the two ends of the torsion spring (6) are respectively engaged with the surfaces of the first connecting leaf (1) and the second connecting leaf (2). Both the first connecting plate (1) and the second connecting plate (2) have rectangular through grooves (7) on their surfaces. A T-shaped mounting plate (8) is installed on the inner wall of the rectangular through groove (7). The surface of the T-shaped mounting plate (8) has a mounting groove (9). A limit component is connected between the rectangular through groove (7) and the T-shaped mounting plate (8).

2. The hinge connection structure of claim 1, wherein, The limiting component includes a limiting slot (10) formed on the end wall of the rectangular through groove (7) and a sliding groove (11) formed on the surface of the T-shaped mounting plate (8). An overlapping slide plate (16) is slidably connected to the inner wall of the sliding groove (11). A limiting insert plate (17) is fixedly installed on the surface of the overlapping slide plate (16). An elastic reset mechanism is connected between the sliding groove (11) and the overlapping slide plate (16).

3. The hinge connection structure of claim 2, wherein, The elastic reset mechanism includes a strip-shaped placement groove (12) formed on the inner side wall of the sliding groove (11), a fixing rod (13) is fixedly connected between the two end walls of the strip-shaped placement groove (12), a spring (14) is sleeved around the fixing rod (13), and a sliding sleeve block (15) is slidably sleeved around the fixing rod (13).

4. The hinge connection structure of claim 3, wherein, The sliding sleeve (15) is slidably connected to the inner wall of the strip-shaped placement groove (12), and the opposite surfaces of the two sliding sleeves (15) are fixedly connected to the two end surfaces of the overlapping slide plate (16).

5. The hinge connection structure of claim 1, wherein, One end of the limiting insert (17) passes through the end wall of the sliding groove (11) and is inserted into the inner wall of the limiting slot (10), and the opening size of the limiting slot (10) is compatible with the design size of the limiting insert (17).

6. The hinge connection structure of claim 3, wherein, One end of the spring (14) is fixedly connected to the end wall of the strip-shaped mounting groove (12), and the other end of the spring (14) is fixedly connected to one end surface of the sliding sleeve block (15).

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