A quick splicing structure of a power distribution cabinet base

Abstract

The utility model relates to a power distribution cabinet assembly related technical field especially relates to a power distribution cabinet base quick splicing structure, including installation base and assembly mechanism, the inside installation cabinet body of installation base is provided with assembly mechanism in the inside of installation base. This power distribution cabinet base quick splicing structure adopts the pull ring-spring linkage mechanism, realizes the toolless operation of " one pull one put", compared with traditional bolt fixed mode, the obvious promotion dismounting efficiency, the accurate inlay design of limiting block and limiting groove, cooperate swallow-tailed shape positioning slot, the guiding effect of positioning block, make the cabinet body can complete positioning installation in short time, eliminate traditional bolt connection's slip risk, need not professional tool to complete dismounting, reduce operation and maintenance personnel skill requirement, modular design supports single component replacement, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of power distribution cabinet assembly, and in particular to a quick-assembly structure for power distribution cabinet base. Background Technology

[0002] Distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes). They are the final-level equipment in a power distribution system. Distribution cabinets are a general term for motor control centers. Distribution cabinets are used in situations where the load is relatively dispersed and there are few circuits; motor control centers are used in situations where the load is concentrated and there are many circuits. They distribute the electrical energy from a circuit of the upstream power distribution equipment to the nearest load. This equipment should provide protection, monitoring, and control for the load; therefore, a quick-assembly structure for the distribution cabinet base is particularly needed.

[0003] However, in the existing quick-assembly structure of the distribution cabinet base, most distribution cabinets are often installed and fixed on the mounting base by welding or bolts. However, welding fixation cannot be operated when disassembly is needed, and bolt fixation requires tools for disassembly and assembly, which is inefficient and prone to bolt stripping.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN109586175B that discloses a quickly detachable power distribution cabinet. The patent describes a cabinet comprising: a counterweight base; a hydraulic rod fixedly connected inside the counterweight base; sliding grooves on all four sides of the counterweight base; an outer cabinet slidably connected to the sides of the sliding grooves; one end of the hydraulic rod penetrating the outer cabinet and extending into its interior; a water immersion sensor fixedly connected to one surface of the outer cabinet; a first limiting ring and a second limiting ring threadedly connected to the sides of the hydraulic rod; and a shock-absorbing spring fitted around the sides of the hydraulic rod. This invention, through the design of an inner frame, protrusions, recessed holes, double-ended screws, uprights, a bottom frame, a top frame, and a mounting bracket, enables the device to achieve a Lego-like assembly structure. The device features rapid assembly and disassembly, modular assembly of the frame, versatility of components, and ease of use of modules. Furthermore, the pull-out structure of the mounting bracket facilitates rapid inspection of the internal electrical components. While the design of the inner frame, studs, inserts, double-ended screws, uprights, bottom frame, top frame, and mounting bracket allows for rapid assembly and disassembly using a Lego-like modular structure, and facilitates rapid inspection of the internal electrical components, the operation is complex and affects assembly / disassembly efficiency.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this utility model is to provide a quick-assembly structure for the base of a power distribution cabinet, so as to solve the problem mentioned in the background art that in the process of using the existing quick-assembly structure for the base of a power distribution cabinet, most power distribution cabinets are often installed and fixed by welding or bolts when installed on the mounting base. However, welding fixation cannot be operated when disassembly is required, and bolt fixation requires the use of tools for disassembly and assembly, which is inefficient and prone to bolt stripping.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-assembly structure for a power distribution cabinet base, comprising a mounting base and an assembly mechanism, wherein the mounting base has an internal mounting cabinet and the assembly mechanism is provided inside the mounting base;

[0008] The assembly mechanism includes an installation groove, a positioning groove inside the installation base, a movable groove inside the installation base, a limit groove on one side of the surface of the cabinet, a positioning block fixedly connected to the other side of the surface of the cabinet, a limit block fitted inside the movable groove, a connecting rod fixedly connected to one end of the limit block, a return spring sleeved on the surface of the connecting rod, and a pull ring fixedly connected to the other end of the connecting rod.

[0009] Preferably, the mounting groove is formed on the surface of the mounting base, and its size matches the top size of the cabinet.

[0010] Preferably, the positioning groove is a dovetail groove.

[0011] Preferably, the positioning block is a dovetail-shaped block, and the size of the positioning block matches that of the positioning groove.

[0012] Preferably, the cross-sectional dimensions of the limiting block match the limiting groove.

[0013] Preferably, one end of the connecting rod passes through the mounting base and is fixedly connected to the pull ring.

[0014] Preferably, the reset spring is disposed inside the movable groove, one end of the reset spring is fixedly connected to the limiting block, and the other end of the reset spring is fixedly connected to the mounting base.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: The quick-assembly structure of the distribution cabinet base adopts a pull ring-spring linkage mechanism to achieve tool-free operation of "pull and release". Compared with the traditional bolt fixing method, it significantly improves the disassembly and assembly efficiency. The precise fitting design of the limit block and the limit groove, together with the guiding effect of the dovetail positioning groove and the positioning block, enables the cabinet to be positioned and installed in a short time, eliminating the risk of stripping of traditional bolt connections. Disassembly and assembly can be completed without professional tools, reducing the skill requirements of maintenance personnel. The modular design supports the replacement of individual components, reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is a side view of the appearance structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cooperation structure between the positioning groove and the positioning block of this utility model;

[0018] Figure 3 This is a cross-sectional view of the assembly mechanism of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Mounting base; 2. Cabinet; 3. Assembly mechanism; 301. Mounting groove; 302. Positioning groove; 303. Movable groove; 304. Limiting groove; 305. Positioning block; 306. Limiting block; 307. Connecting rod; 308. Return spring; 309. Pull ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a quick-assembly structure for a power distribution cabinet base, including a mounting base 1 and an assembly mechanism 3, wherein the mounting base 1 has a cabinet 2 installed inside, and the mounting base 1 has an assembly mechanism 3 installed inside.

[0023] The assembly mechanism 3 includes a mounting groove 301, a positioning groove 302 inside the mounting base 1, a movable groove 303 inside the mounting base 1, a limit groove 304 on one side of the surface of the cabinet 2, a positioning block 305 fixedly connected to the other side of the surface of the cabinet 2, a limit block 306 fitted inside the movable groove 303, a connecting rod 307 fixedly connected to one end of the limit block 306, a return spring 308 sleeved on the surface of the connecting rod 307, and a pull ring 309 fixedly connected to the other end of the connecting rod 307. The assembly mechanism 3 utilizes the mounting groove 301, positioning groove 302, and movable groove 303 to achieve the desired assembly. The arrangement of the limiting groove 304, positioning block 305, limiting block 306, connecting rod 307, return spring 308, and pull ring 309 allows the cabinet 2 to be installed on the surface of the mounting base 1 during use. First, the pull ring 309 is pulled. The pull ring 309 transmits the force to the limiting block 306 via the connecting rod 307. At this time, the limiting block 306 moves into the movable groove 303. Since the return spring 308 is located inside the movable groove 303 and its two ends are fixed to the mounting base 1 and the limiting block 306 respectively... When the limiting block 306 moves into the movable groove 303, the return spring 308 is compressed and deformed. When the limiting block 306 is fully engaged in the limiting groove 304, the cabinet 2 is placed on top of the mounting base 1, and the positioning block 305 is engaged in the positioning groove 302. Then, the cabinet 2 is moved downward so that the positioning block 305 is fully engaged in the positioning groove 302. At this time, the limiting groove 304 and the movable groove 303 are aligned. The force applied to the pull ring 309 is released, and the return spring 308 rebounds based on its characteristics. The spring 308, which has undergone rebound deformation, causes the limiting block 306 to return to its original position. At this time, one end of the limiting block 306 is engaged inside the movable groove 303, and the other end is engaged inside the limiting groove 304. The limiting block 306 fixes the cabinet 2 on the surface of the mounting base 1. When the cabinet 2 needs to be disassembled, simply pull the pull ring 309 to make the limiting block 306 fully engaged inside the movable groove 303. At this time, one end of the limiting block 306 disengages from the limiting groove 304 and loses its limiting effect on the cabinet 2, so the cabinet 2 can be disassembled upwards.

[0024] Furthermore, the mounting groove 301 is formed on the surface of the mounting base 1, and its size matches the bottom size of the cabinet 2. Through the setting of the mounting groove 301, the mounting groove 301 is formed on the surface of the mounting base 1, and its size strictly matches the bottom of the cabinet 2. Through geometric matching, the horizontal displacement and tilt angle of the cabinet 2 are constrained, ensuring the stability of the vertical installation posture of the cabinet 2. In conjunction with the dovetail design of the positioning groove 302 and the positioning block 305, a two-way limiting mechanism is formed. The mounting groove 301 constrains the bottom degree of freedom of the cabinet 2, and the dovetail structure prevents the bottom from sliding laterally. The dual function eliminates the risk of the cabinet 2 shaking after splicing. As the initial placement area of ​​the cabinet 2, it provides an alignment reference for the subsequent sliding of the positioning block 305 into the positioning groove 302. At the same time, the limiting block 306 can be accurately embedded in the limiting groove 304 on the side of the cabinet 2, which significantly improves the splicing efficiency.

[0025] Furthermore, the positioning groove 302 is a dovetail-shaped groove. Through the setting of the positioning groove 302, designed as a dovetail shape, it tightly fits with the dovetail-shaped positioning block 305 on the side of the cabinet 2. The unique trapezoidal slope of the dovetail structure guides the positioning block 305 to slide in unidirectionally, forming a mechanical self-locking in the horizontal direction, effectively preventing the cabinet 2 from shifting laterally or coming off after assembly. Through the size-matching design with the positioning block 305, the positioning groove 302 rigidly connects the bottom of the cabinet 2 to the mounting base 1, distributing the weight of the cabinet 2. The equipment load is transferred to the base structure. The wide bottom and narrow opening of the dovetail groove further suppresses the micro-displacement caused by vibration and improves the seismic resistance. The positioning groove 302 serves as the initial positioning reference and together with the mounting groove 301, it constrains the placement position of the cabinet 2. The mounting groove 301 fixes the bottom of the cabinet 2 in the vertical direction, while the positioning groove 302 guides the positioning block 305 to be horizontally embedded, providing accurate alignment conditions for the subsequent insertion of the limiting block 306 into the limiting groove 304 on the side of the cabinet 2, realizing the streamlined operation of "placement-positioning-locking".

[0026] Furthermore, the positioning block 305 is a dovetail-shaped block, and the size of the positioning block 305 matches the size of the positioning groove 302. As a dovetail-shaped block, the positioning block 305 strictly matches the size of the dovetail-shaped positioning groove 302 inside the mounting base 1. Its trapezoidal inclined surface design forms a one-way self-locking effect. When the cabinet 2 is pressed down, the positioning block 305 slides into the positioning groove 302 along the inclined surface, generating a mechanical interlocking force in the horizontal direction, effectively resisting the risk of lateral displacement or detachment of the power distribution cabinet due to vibration or load.

[0027] Furthermore, the cross-sectional dimensions of the limiting block 306 match those of the limiting groove 304. The limiting block 306 precisely matches the limiting groove 304 on the side of the cabinet 2 through its cross-sectional dimensions, forming a physical rigid lock. When the return spring 308 pushes the limiting block 306 into the limiting groove 304, it can resist the longitudinal displacement of the distribution cabinet caused by vibration or load, preventing the cabinet 2 from separating from the mounting base 1.

[0028] Furthermore, one end of the connecting rod 307 passes through the mounting base 1 and is fixedly connected to the pull ring 309. The connecting rod 307 serves as a rigid connecting component between the limiting block 306 and the pull ring 309, transmitting the pulling force of manual operation to the limiting block 306 to achieve synchronous displacement control of the limiting mechanism. The design of passing through the mounting base 1 ensures the straightness and stability of the force transmission path when the pull ring 309 is operated. The return spring 308 sleeved on the surface of the connecting rod 307 forms an elastic return system. When unlocking, pulling the pull ring 309 causes the connecting rod 307 and the limiting block 306 to retract into the movable groove 303. The spring is compressed and stores energy. After release, the spring force pushes the connecting rod 307 to return to its original position, causing the limiting block 306 to automatically engage with the limiting groove 304 of the cabinet 2, completing tool-less locking.

[0029] Furthermore, a return spring 308 is disposed inside the movable groove 303. One end of the return spring 308 is fixedly connected to the limiting block 306, and the other end is fixedly connected to the mounting base 1. The return spring 308 is sleeved on the surface of the connecting rod 307 and is normally in an extended state, pushing the limiting block 306 into the limiting groove 304 on the side of the cabinet 2. When disassembly is required, pulling the pull ring 309 compresses the spring, causing the limiting block 306 to retract into the movable groove 303. After release, the spring automatically rebounds, driving the limiting block 306 to reset, achieving tool-free quick locking and unlocking with a "pull and release" action. The continuous positive pressure provided by the return spring 308 ensures that the limiting block 306 and the limiting groove 304 always remain tightly engaged, suppressing displacement even if the cabinet 2 is shaken by external forces. Combined with the horizontal constraint of the dovetail-shaped positioning block 305, a dual anti-displacement system of "vertical elastic lock + horizontal mechanical lock" is formed.

[0030] Working principle: When the cabinet 2 needs to be installed on the surface of the mounting base 1, the pull ring 309 can be pulled first. The pull ring 309 transmits the force to the limiting block 306 through the connecting rod 307. At this time, the limiting block 306 moves into the movable groove 303. Since the return spring 308 is located inside the movable groove 303 and its two ends are fixedly connected to the mounting base 1 and the limiting block 306 respectively, the return spring 308 is compressed and deformed when the limiting block 306 moves into the movable groove 303. When the limiting block 306 is fully engaged in the limiting groove 304, the cabinet 2 is placed on top of the mounting base 1, and the positioning block 305 is engaged in the positioning groove 302. Then, the cabinet 2 is moved downwards to make the positioning block... When the 305 is fully engaged in the positioning groove 302, the limiting groove 304 and the movable groove 303 are aligned. When the force applied to the pull ring 309 is released, the return spring 308 rebounds based on its characteristics. The rebounding return spring 308 drives the limiting block 306 back to its original position. At this time, one end of the limiting block 306 is engaged in the movable groove 303, and the other end is engaged in the limiting groove 304. At this time, the limiting block 306 fixes the cabinet 2 on the surface of the mounting base 1. When it is necessary to disassemble the cabinet 2, simply pull the pull ring 309 to make the limiting block 306 fully engaged in the movable groove 303. At this time, one end of the limiting block 306 disengages from the limiting groove 304 and loses its limiting effect on the cabinet 2, so the cabinet 2 can be disassembled upwards.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-assembly structure for a power distribution cabinet base, comprising a mounting base (1) and an assembly mechanism (3), characterized in that: The mounting base (1) has an internal mounting cabinet (2), and the mounting base (1) is provided with an assembly mechanism (3). The assembly mechanism (3) includes an installation groove (301), a positioning groove (302) is provided inside the installation base (1), an movable groove (303) is provided inside the installation base (1), a limiting groove (304) is provided on one side of the surface of the cabinet (2), a positioning block (305) is fixedly connected to the other side of the surface of the cabinet (2), a limiting block (306) is fitted inside the movable groove (303), a connecting rod (307) is fixedly connected to one end of the limiting block (306), a return spring (308) is sleeved on the surface of the connecting rod (307), and a pull ring (309) is fixedly connected to the other end of the connecting rod (307).

2. The quick-assembly structure for a power distribution cabinet base according to claim 1, characterized in that: The mounting slot (301) is formed on the surface of the mounting base (1) and its size matches the top size of the cabinet (2).

3. The quick-assembly structure for a power distribution cabinet base according to claim 1, characterized in that: The positioning groove (302) is a dovetail-shaped groove.

4. The quick-assembly structure for a power distribution cabinet base according to claim 1, characterized in that: The positioning block (305) is a dovetail-shaped block, and the positioning block (305) matches the size of the positioning groove (302).

5. The quick-assembly structure for a power distribution cabinet base according to claim 1, characterized in that: The cross-sectional dimensions of the limiting block (306) match those of the limiting groove (304).

6. The quick-assembly structure for a power distribution cabinet base according to claim 1, characterized in that: One end of the connecting rod (307) passes through the mounting base (1) and is fixedly connected to the pull ring (309).

7. The quick-assembly structure for a power distribution cabinet base according to claim 1, characterized in that: The reset spring (308) is disposed inside the movable groove (303). One end of the reset spring (308) is fixedly connected to the limiting block (306), and the other end of the reset spring (308) is fixedly connected to the mounting base (1).

Images