Uninterrupted power supply (UPS) base with adjustable supporting legs

Abstract

The utility model provides a UPS power supply base with adjustable supporting legs, and relates to the technical field of uninterruptible power supplies. Comprising a main bearing plate, a bubble level is arranged on the main bearing plate, an adjustable supporting leg structure is arranged on the main bearing plate, the adjustable supporting leg structure comprises an adjusting assembly and a supporting assembly, and the adjusting assembly is rotationally connected with the supporting assembly; at least four sets of adjustable supporting leg structures are arranged, the adjusting assembly comprises a rotating rod, the rotating rod is in threaded connection with the main bearing plate, the supporting assembly comprises a connector, and the bottom of the rotating rod is rotationally connected with the connector. The height adjusting device is simple in structure, stable and reliable, and the height of the main bearing plate of the UPS power supply base can be rapidly adjusted.

Description

A UPS power supply base with adjustable support feet Technical Field

[0001] This utility model relates to the field of uninterruptible power supply technology, and in particular to a UPS power supply base with adjustable support feet. Background Technology

[0002] Tower UPS (Uninterruptible Power Supply) units are typically large and heavy (50-200 kg), and contain precision electronic components, battery packs, and cooling systems. The main support plate, which serves as its mounting base, must be kept level for the following reasons:

[0003] Impact on Battery Performance: The lead-acid or lithium-ion batteries built into the UPS are sensitive to tilt. A tilt exceeding 2° can lead to uneven electrolyte distribution, accelerate plate corrosion, and reduce battery capacity. Experiments show that a 3° tilt can shorten battery life by 15-20%. Cooling System Efficiency: Most tower UPS systems use forced air cooling. Tilting alters the internal airflow path, leading to localized overheating. Test data shows that a 5° tilt can reduce heat dissipation efficiency by 30%, increasing the risk of triggering overheat protection. Mechanical Stability Risk: Tower UPS systems have a high center of gravity (typically >600mm), and tilting significantly increases the overturning moment. When the tilt angle is >1.5°, the probability of equipment overturning increases threefold under earthquake or accidental collision conditions. Liquid Cooling System Compatibility: High-end UPS systems may integrate liquid cooling modules. Tilting can cause uneven coolant distribution, potentially leading to pump idling or localized boiling.

[0004] Traditional fixed support feet have the following technical defects and cannot meet leveling requirements: Ground flatness errors are common, and fixed feet cannot compensate for them. Actual measurements show that, in an unleveled state, the load-bearing plate tilts by 1.5-4 degrees, exceeding the ≤1° safety threshold specified by UPS manufacturers. When there is a gap between the fixed feet and the ground, the UPS weight is partially borne by the support points, leading to localized deformation of the load-bearing plate. Adding shims for leveling requires disassembling the equipment, violating NFPA 70E live-line working safety regulations, and temporary shims are prone to displacement, causing secondary unevenness. Fixed feet cannot dynamically adapt to micro-deformations caused by vibration; in IEEE 693 earthquake tests, the displacement of a non-adjustable UPS support is 2.5 times that of an adjustable one. Summary of the Invention

[0005] This utility model provides a UPS power supply base with adjustable support feet. The vertical height of the main support plate is adjusted by a rotating rod threadedly connected to the main support plate and a rotating connection between the bottom of the rotating rod and the support assembly. This improves the technical problem that existing UPS power supply bases cannot meet the requirement of keeping the base level for UPS power supplies.

[0006] A UPS power supply base with adjustable support feet includes a main support plate on top on which a tower UPS power supply is mounted. A bubble level is provided on the main support plate. An adjustable support foot structure is provided on the main support plate. The adjustable support foot structure includes an adjustment component and a support component, and the adjustment component and the support component are rotatably connected.

[0007] The adjustable support foot structure is provided with at least four sets. The adjustment component includes a rotating rod, which is threadedly connected to the main bearing plate. The support component includes a connector, and the bottom of the rotating rod is rotatably connected to the connector.

[0008] The design concept is as follows: The vertical height of the main support plate is adjusted via a threaded connection between the rotating rod and the main support plate, as well as a rotatable connection between the bottom of the rotating rod and the support assembly. Combined with a bubble level, the horizontal state of the main support plate can be visually determined. This ensures the UPS battery remains horizontally balanced, meeting battery placement requirements and preventing the battery from tilting during placement. More importantly, given the diverse operating environments and installation limitations of UPS power supplies, such as on bookcase steps or outdoor ground, the design allows the UPS base to adapt to uneven ground under limited installation conditions. The rotatable connection between the rotating rod and the support assembly prevents relative displacement between the support assembly and the ground when adjusting the vertical height of the main support plate, improving the ease of adjustment.

[0009] The adjustable support foot structure has at least four sets, and more sets can be set according to actual needs. This utility model has a simple, stable and reliable structure, and can quickly adjust the height of the main support plate of the UPS power supply base.

[0010] Furthermore, the rotating rod is a bolt structure with a bent top, and the main bearing plate has a threaded through hole in the vertical direction, and the rotating rod is threadedly connected to the threaded through hole.

[0011] The combination of the threaded through hole and the bent bolt simplifies the adjustment process. The height can be adjusted directly by rotating the bent part without the need for other tools, making it convenient and quick.

[0012] Furthermore, a groove is provided on the top of the connector, and a bearing is disposed in the groove, with the outer ring of the bearing being interference-fitted with the groove.

[0013] The outer diameter of the bearing outer ring is slightly larger than the inner diameter of the groove. They are forcibly assembled by pressing or temperature difference to form a tight physical contact.

[0014] The radial pressure generated by the interference fit creates static friction between the bearing outer ring and the groove, preventing relative movement; the bearing outer ring is fixed within the groove. The interference fit eliminates the gap between the bearing outer ring and the groove, preventing loosening under vibration or load and ensuring the long-term stability of the UPS base. No additional fasteners (such as screws or retaining rings) are needed, reducing the number of parts and assembly steps, thus lowering costs. The interference fit ensures full circumferential contact between the bearing outer ring and the groove, resulting in even pressure distribution and improved load-bearing capacity and impact resistance.

[0015] Furthermore, the lower end of the rotating rod is embedded in the inner ring of the bearing and is interference-fitted with the inner ring of the bearing.

[0016] When the rotating rod is rotated, the interference fit forces the inner ring of the bearing to rotate synchronously, while the outer ring of the bearing remains stationary due to the interference fit with the groove. This converts the rotational motion into the vertical lifting and lowering motion of the support foot. The interference fit eliminates relative slippage between the rotating rod and the inner ring of the bearing, ensuring that all the adjusting force is transmitted to the support foot and preventing adjustment failure due to slippage.

[0017] Furthermore, the support assembly also includes suction cup pads, the bottom of the connector is provided with a protrusion, and the top of the suction cup pad is connected to the protrusion.

[0018] Furthermore, the suction cup foot pad has a connecting cavity on its top, and the protrusion is inserted into the connecting cavity and is interference-fitted with the connecting cavity.

[0019] The connector employs a protrusion-cavity mating method, where the protrusion at the bottom of the connector and the connecting cavity at the top of the suction cup pad form a physical interlock. The friction generated by the mechanical interference fit between the protrusion and the connecting cavity, combined with the vacuum suction force created by the suction cup pad under pressure against the ground, results in a more reliable connection. Under pressure, the suction cup pad automatically expels air, creating a vacuum suction protrusion structure that ensures even force distribution and prevents edge lifting. The suction cup pad is compatible with various floor materials, such as ceramic tiles, wood flooring, and metal surfaces, maintaining optimal adhesion on all surfaces.

[0020] Furthermore, the protrusion is a hemispherical structure with a flat bottom. The flat bottom ensures that pressure is evenly transmitted to the suction cup feet, avoiding stress concentration at the edges. The hemispherical structure can automatically adjust its angle when the equipment shakes, compensating for tilt without affecting stability. The flat bottom surface forms a surface contact with the suction cup feet, effectively improving pull-out resistance. The hemispherical sidewalls provide a progressive interference fit, reducing assembly resistance while maintaining anti-detachment force.

[0021] Furthermore, the opening size of the connecting cavity is smaller than the internal size of the cavity.

[0022] The connecting cavity adopts a special structure with a small opening and a large interior, and uses the deformation characteristics of elastic materials to achieve an interference fit.

[0023] Furthermore, the support assembly also includes a rubber pad, a fixing block is provided at the bottom of the connector, a square groove is provided at the bottom of the fixing block, a square head is provided on one side of the rubber pad, and the square head is inserted into the square groove and is interference-fitted with the square groove.

[0024] The rubber pad and the fixing block are connected by an elastic interference fit, making installation and replacement convenient. The rubber material has a high elastic modulus, which can effectively absorb and disperse the vibration and impact energy of the equipment, reducing the vibration transmitted to the ground. The rubber surface has a high coefficient of friction, which can increase the static friction with the ground and prevent the equipment from sliding. The flexibility of the self-adaptive compensating rubber allows it to adapt to slightly uneven ground, maintaining stable contact through local deformation.

[0025] Beneficial effects of utility model

[0026] This invention achieves vertical height adjustment of the main support plate through a threaded connection between a rotating rod and the main support plate, and a rotatable connection between the bottom of the rotating rod and the support assembly. Combined with a bubble level, the horizontal state of the main support plate can be visually determined. Four sets of adjustable support feet constitute a stable support structure. This invention has a simple, stable, and reliable structure, enabling rapid height adjustment of the main support plate of the UPS power supply base.

[0027] This invention features a hemispherical protrusion at the bottom of the connector, with a suction cup pad attached to the protrusion. The protrusion and the connecting cavity at the top of the suction cup pad are connected by an interference fit, creating a physical interlock between the protrusion at the bottom of the connector and the connecting cavity at the top of the suction cup pad. The vacuum suction force formed between the suction cup pad and the ground under pressure makes the connection more secure. The suction cup pad is compatible with various floor materials such as ceramic tiles, wood flooring, and metal surfaces. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the structure of this utility model;

[0029] Figure 2 is a partial cross-sectional view of the present invention;

[0030] Figure 3 is a schematic diagram of the suction cup foot pad structure of this utility model;

[0031] Figure 4 is a top view of the present invention;

[0032] Reference numerals: 1-Main bearing plate, 2-Rotating rod, 3-Connector, 4-Bearing, 5-Protrusion, 6-Suction cup foot pad, 7-Connecting cavity, 8-Bubble level. Detailed Implementation

[0033] Example 1: As shown in Figures 1, 2, and 4, a UPS power supply base with adjustable support feet includes a main support plate 1 on top of a tower UPS power supply, a bubble level 8 on the main support plate 1, and an adjustable support foot structure on the main support plate 1. The adjustable support foot structure includes an adjustment component and a support component, which are rotatably connected. At least four sets of adjustable support feet are provided. The adjustment component includes a rotating rod 2, which is threadedly connected to the main support plate 1. The support component includes a connector 3, and the bottom of the rotating rod 2 is rotatably connected to the connector 3.

[0034] The vertical height adjustment of the main support plate 1 is achieved through a threaded connection between the rotating rod 2 and the main support plate 1, as well as a rotatable connection between the bottom of the rotating rod 2 and the support assembly. Combined with a bubble level 8, the horizontal state of the main support plate 1 can be visually determined. Multiple sets of adjustable support feet constitute a stable support structure. This invention has a simple, stable, and reliable structure, enabling rapid height adjustment of the main support plate 1 of the UPS power supply base.

[0035] The bubble level 8 is a universal bubble level, model HL-1508. A circular groove is made at the edge of the main support plate 1. The bubble level 8 is placed in the circular groove, and the gap between the groove and the bubble level 8 is fixed with a rubber ring.

[0036] Four sets of adjustable support feet are installed at the bottom of the main support plate 1. The main support plate 1 is visually kept flat. Based on the display of the bubble level 8, the lower side is identified, and the corresponding adjustable support foot is adjusted. Rotating the rotating rod 2, the rotational connection between the rotating rod 2 and the rotating head prevents relative displacement between the support assembly and the ground, ensuring the support assembly is stably fixed to the ground. The threaded engagement between the rotating rod 2 and the main support plate 1 allows the support assembly to move vertically upwards under the rotation of the rotating rod 2. Multiple adjustments can be made until the bubble in the bubble level 8 is centered.

[0037] Example 2: Based on Example 1, as shown in Figure 2, a groove is provided at the top of the connector, and a bearing 4 is disposed in the groove. The outer ring of the bearing 4 is interference-fitted with the groove. The lower end of the rotating rod 2 is embedded in the inner ring of the bearing 4 and is interference-fitted with the inner ring of the bearing 4.

[0038] A groove is made at the top of the connector. The outer diameter of the bearing 4's outer ring is slightly larger than the inner diameter of the groove. Forced assembly is achieved using a temperature difference method, ensuring a tight physical contact between the bearing 4's outer ring and the inner wall of the groove. The radial pressure generated by the interference fit creates static friction between the bearing 4's outer ring and the groove, preventing relative movement between them. The diameter of the bearing 4's inner ring is slightly smaller than the diameter of the rotating rod 2. Forced assembly is also achieved using a temperature difference method, ensuring a tight physical contact between the bearing 4's inner ring and the bottom of the rotating rod 2. The bearing 4's outer ring is fixed within the groove, and the bearing 4's inner ring is fixedly connected to the rotating rod 2. When the rotating rod 2 rotates, only the bearing 4's inner ring rotates with it; the bearing 4's outer ring and the connector 3 remain stationary, preventing the support feet from shifting during height adjustment.

[0039] Four sets of adjustable support feet are installed at the bottom of the main support plate 1. The main support plate 1 is visually kept flat. Based on the display of the bubble level 8, the lower side is identified, and the corresponding adjustable support foot is adjusted. Rotating the rotating rod 2 causes only the inner ring to rotate, while the outer ring and connector 3 remain stationary. This prevents relative displacement between the support assembly and the ground, ensuring the support assembly is stably fixed to the ground. The threaded connection between the rotating rod 2 and the main support plate 1 allows the support assembly to move vertically upwards as the rotating rod 2 rotates. Multiple adjustments can be made until the bubble in the bubble level 8 is centered.

[0040] Example 3: Based on Example 1, as shown in Figures 2 and 3, the support assembly further includes a suction cup foot pad 6. The bottom of the connector 3 has a protrusion 5, and the top of the suction cup foot pad 6 connects to the protrusion 5. A connecting cavity 7 is formed on the top of the suction cup foot pad 6, and the protrusion 5 is inserted into the connecting cavity 7 and is interference-fitted with it. The protrusion 5 is a hemispherical structure with a flat bottom. The opening size of the connecting cavity 7 is smaller than the internal size of the cavity.

[0041] A flat, hemispherical protrusion 5 is provided at the bottom of the connector, and a connecting cavity 7 is provided at the top of the suction cup pad 6. The opening size of the connecting cavity 7 is smaller than the cavity size. The suction cup pad 6 is made of silicone rubber and is integrally molded. The suction cup pad 6 is fitted onto the protrusion 5 through the opening of the connecting cavity 7, forming a physical interlock. The friction generated by the mechanical interference fit between the protrusion 5 and the connecting cavity 7 effectively improves the pull-out resistance. The vacuum suction force formed by the suction cup pad 6 against the ground after being pressed allows the UPS power base to be stably attached to the ground.

[0042] Example 4: Based on Example 1, the support component further includes a rubber pad, a fixing block is provided at the bottom of the connector 3, a square groove is provided at the bottom of the fixing block, a square head is provided on one side of the rubber pad, and the square head is inserted into the square groove and is interference-fitted with the square groove.

[0043] The rubber pad and the square head have a double-layer structure. The square head is smaller than the rubber pad and is located in the middle of one side of the rubber pad. A fixing block is connected to the bottom of the connector 3. A square groove is opened on the bottom of the fixing block, and the square head of the rubber pad is embedded into the square groove to form an elastic interference fit. The larger rubber pad is fixed to the bottom of the fixing block.

[0044] For relatively rough surfaces, the suction cup pads 6 cannot form a vacuum suction force with the ground after being pressed. The suction cup pads 6 can be replaced with rubber pads, etc., to achieve elastic shock resistance while increasing the friction between the UPS power supply base and the ground, ensuring that the UPS power supply base is placed stably on the ground.

Claims

1. A UPS power supply base with adjustable support feet, comprising a main support plate (1) on top of which a tower UPS power supply is mounted, characterized in that, A bubble level (8) is provided on the main support plate (1). An adjustable support foot structure is provided on the main support plate (1). The adjustable support foot structure includes an adjustment component and a support component. The adjustment component and the support component are rotatably connected. The adjustable support foot structure is provided in at least four sets. The adjustment component includes a rotating rod (2). The rotating rod (2) is threadedly connected to the main support plate (1). The support component includes a connector (3). The bottom of the rotating rod (2) is rotatably connected to the connector (3). The rotating rod (2) is a bolt structure with a bent top. A threaded through hole is opened on the main support plate (1) along the vertical direction. The rotating rod (2) is threadedly connected to the threaded through hole. A groove is opened on the top of the connector (3). A bearing (4) is provided in the groove. The outer ring of the bearing (4) is interference-fitted with the groove. The lower end of the rotating rod (2) is embedded in the inner ring of the bearing (4) and interference-fitted with the inner ring of the bearing (4).

2. The UPS power supply base with adjustable support feet according to claim 1, characterized in that, The support assembly also includes a suction cup foot pad (6), and the bottom of the connector (3) is provided with a protrusion (5), and the top of the suction cup foot pad (6) is connected to the protrusion (5).

3. The UPS power supply base with adjustable support feet according to claim 2, characterized in that, The suction cup foot pad (6) has a connecting cavity (7) at the top, and the protrusion (5) is inserted into the connecting cavity (7) and is interference-fitted with the connecting cavity (7).

4. The UPS power supply base with adjustable support feet according to claim 3, characterized in that, The protrusion (5) is a hemispherical structure with a flat bottom.

5. The UPS power supply base with adjustable support feet according to claim 3, characterized in that, The opening size of the connecting cavity (7) is smaller than the internal size of the cavity.

6. The UPS power supply base with adjustable support feet according to claim 1, characterized in that, The support assembly also includes a rubber pad, and a fixing block is provided at the bottom of the connector (3). A square groove is provided at the bottom of the fixing block, and a square head is provided on one side of the rubber pad. The square head is inserted into the square groove and is interference-fitted with the square groove.

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