Protective power transformer easy to maintain

Abstract

The utility model discloses a protection type power transformer easy to maintain, which comprises a mounting box base and a power transformer body mounted in the mounting box base, a cover body is detachably mounted at the top of the mounting box base, inserting columns are fixedly connected to four corners of the bottom of the cover body, a knob is rotatably connected to the interior of the mounting box base, and the power transformer body is mounted in the mounting box base. An inserting column is arranged in the mounting box base, a rotary knob is arranged in the inserting column, one end of the rotary knob is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with a protruding block, a clamping and fixing mechanism capable of being used in cooperation with the inserting column is arranged on the inner wall of the mounting box base, and the clamping and fixing mechanism can be driven to be separated from the inserting column by twisting the rotary knob. When the cover body and the mounting box base are mounted, positioning mounting can be carried out, and the connecting rods can be quickly separated from the fixing holes under the cooperation of the rotary knobs, the connecting plates, the convex blocks, the connecting rods and other structures, so that the cover body is detached from the mounting box base, and the maintenance efficiency of the power transformer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power transformers, in particular to a protective power transformer that is easy to maintain. Background Art

[0002] Power transformers are used for power transmission, voltage conversion, and insulation isolation. As a primary soft magnetic electromagnetic component, they are widely used in power supply technology and power electronics. Power transformers are categorized by power transmission power: 10kVA and above is considered high power, 10kVA to 0.5kVA is medium power, 0.5kVA to 25VA is low power, and below 25VA is micro power.

[0003] A Chinese patent application with publication number (CN221507872U) discloses a protective power transformer, comprising a mounting box base and a power transformer. The mounting box base has connecting grooves on both sides, with connecting posts fixedly connected to the middle of the connecting grooves. The connecting posts have threaded holes, and the connecting posts are equipped with mounting rails. A mounting clip is fixedly connected to the bottom of the power transformer, and the mounting clip is snapped onto the mounting rail. The utility model provides a cover, a mounting box base, and a sealing ring. During the tightening of bolts between the cover and the mounting box base, the three components cooperate to compress the sealing ring, thereby preventing water from entering the mounting box base. This makes the power transformer waterproof, dustproof, and moisture-proof, thereby increasing its service life.

[0004] The drawback of the above-mentioned technology is that the cover and the base of the mounting box are fixed together by bolts. If the power transformer fails, maintenance personnel need to use tools to remove multiple bolts one by one, and then remove the cover from the base of the mounting box. After the maintenance is completed, tools are needed to install multiple bolts one by one, making the entire maintenance process too cumbersome. Utility Model Content

[0005] The purpose of the present utility model is to provide a protective power transformer that is easy to maintain, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a protective power transformer that is easy to maintain, comprising a mounting box base and a power transformer installed inside the mounting box base, the top of the mounting box base being detachably mounted with a cover body, the four corners of the bottom of the cover body being fixedly connected with plug posts, the interior of the mounting box base being rotatably connected with a knob, one end of the knob being fixedly connected with a connecting plate, one side of the connecting plate being fixedly connected with a protrusion, the inner wall of the mounting box base being provided with a fixing mechanism that can be used in conjunction with the plug post, and the fixing mechanism can be driven to detach from the plug post by twisting the knob, thereby realizing the disassembly of the mounting box base and the cover body.

[0007] As a preferred solution of the present invention, the fixing mechanism includes a connecting rod, the inner wall of the mounting box base is fixedly connected to a fixing plate, the interior of the fixing plate is slidably connected to a connecting rod, the outer side of the connecting rod is sleeved with a reset spring, one end of the reset spring is fixedly connected to a pull plate, the pull plate is slidably connected to the connecting rod, one end of the connecting rod is fixedly connected to a bar frame, a sliding groove is provided inside the bar frame, and the protrusion is slidably connected to the sliding groove.

[0008] As a preferred solution of the present invention, a fixing hole is provided inside the plug post, and sockets matching the plug post are provided at the four corners of the top of the installation box base, and one end of the connecting rod passes through the socket and is inserted into the fixing hole.

[0009] As a preferred solution of the present invention, a sealing strip is provided on the top of the installation box base. After the installation box base and the cover body are installed, the sealing strip seals the installation box base and the cover body.

[0010] As a preferred solution of the present invention, the fixing holes on the two transverse plug posts are opened opposite to each other.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can position and install the cover body and the installation box base when installing through the coordinated use of the provided plug posts and sockets, and with the cooperation of structures such as the knob, connecting plate, protrusion and connecting rod, the connecting rod can be quickly disengaged from the fixing hole, thereby allowing the cover body to be detached from the installation box base, thereby improving the maintenance efficiency of the power transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the installation box base of the utility model;

[0014] Figure 3 For the utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0015] In the figure: 1. Mounting box base; 2. Cover; 3. Insertion column; 4. Fixing hole; 5. Knob; 6. Connecting plate; 7. Bump; 8. Fixing mechanism; 81. Connecting rod; 82. Fixing plate; 83. Return spring; 84. Pull plate; 85. Frame; 86. Slide groove; 9. Power transformer; 10. Socket. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figures 1 to 3 The utility model provides a technical solution: a protective power transformer that is easy to maintain, comprising an installation box base 1 and a power transformer 9 installed inside the installation box base 1. The power transformer is a soft magnetic electromagnetic component whose functions are power transmission, voltage conversion and insulation isolation. A cover body 2 is detachably installed on the top of the installation box base 1. The four corners of the bottom of the cover body 2 are fixedly connected with plug posts 3. The plug posts 3 can be positioned when the cover body 2 and the installation box base 1 are installed. A knob 5 is rotatably connected to the inside of the installation box base 1. One end of the knob 5 is fixedly connected to a connecting plate 6. A protrusion 7 is fixedly connected to one side of the connecting plate 6. There are two protrusions 7. The inner wall of the installation box base 1 is provided with a fixing mechanism 8 that can be used in conjunction with the plug post 3. By twisting the knob 5, the fixing mechanism 8 can be driven to disengage from the plug post 3, thereby realizing the disassembly of the installation box base 1 and the cover body 2.

[0018] Among them, the fixing mechanism 8 includes a connecting rod 81, a fixed plate 82 is fixedly connected to the inner wall of the installation box base 1, and the connecting rod 81 is slidably connected inside the fixed plate 82. A return spring 83 is sleeved on the outer side of the connecting rod 81, and one end of the return spring 83 is fixedly connected to a pull plate 84. The pull plate 84 is slidably connected to the connecting rod 81. One end of the connecting rod 81 is fixedly connected to a bar frame 85, and a slide groove 86 is provided inside the bar frame 85. The protrusion 7 is slidably connected to the slide groove 86. By pulling the bar frame 85 to move, the connecting rod 81 can drive the pull plate 84 to follow the movement and squeeze the return spring 83.

[0019] Among them, a fixing hole 4 is opened inside the plug column 3, and the fixing holes 4 on the two horizontal plug columns 3 are opened opposite to each other. The two connecting rods 81 located on the inner wall of the same side of the installation box base 1 can be connected with the fixing hole 4 by turning a knob 5. The top four corners of the installation box base 1 are provided with sockets 10 that match the plug columns 3, and one end of the connecting rod 81 passes through the inside of the socket 10 and is inserted into the fixing hole 4.

[0020] Among them, a sealing strip is set on the top of the installation box base 1, and the arc of the sealing strip will be inserted into the cover body 2. After the installation box base 1 and the cover body 2 are installed, the sealing strip seals the installation box base 1 and the cover body 2.

[0021] Specifically, when the cover body 2 needs to be disassembled, the knob 5 can be rotated to make the connecting plate 6 drive the protrusion 7 to rotate, and then the protrusion 7 slides inside the slide groove 86 while rotating around the knob 5, so that the bar frame 85 is pulled, and then the connecting rod 81 drives the pull plate 84 to move, synchronously squeezing the reset spring 83, so that one end of the connecting rod 81 is disengaged from the inside of the fixing hole 4, and then the cover body 2 is lifted up to make the plug column 3 disengage from the inside of the socket 10, and the quick disassembly between the cover body 2 and the installation box base 1 is completed.

[0022] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0024] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0025] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective power transformer that is easy to maintain, comprising a mounting box base (1) and a power transformer (9) mounted inside the mounting box base (1), characterized in that: The top of the installation box base (1) is detachably mounted with a cover body (2), and the four corners of the bottom of the cover body (2) are fixedly connected with plug posts (3). The interior of the installation box base (1) is rotatably connected with a knob (5), one end of the knob (5) is fixedly connected with a connecting plate (6), and one side of the connecting plate (6) is fixedly connected with a protrusion (7). The inner wall of the installation box base (1) is provided with a clamping mechanism (8) that can be used in conjunction with the plug posts (3). By twisting the knob (5), the clamping mechanism (8) can be driven to separate from the plug posts (3), thereby realizing the disassembly of the installation box base (1) and the cover body (2).

2. The easy-to-maintain protective power transformer according to claim 1, characterized in that: The clamping mechanism (8) includes a connecting rod (81), a fixing plate (82) is fixedly connected to the inner wall of the installation box base (1), the interior of the fixing plate (82) is slidably connected to the connecting rod (81), a reset spring (83) is sleeved on the outer side of the connecting rod (81), one end of the reset spring (83) is fixedly connected to a pull plate (84), the pull plate (84) is slidably connected to the connecting rod (81), one end of the connecting rod (81) is fixedly connected to a bar frame (85), a sliding groove (86) is provided inside the bar frame (85), and the protrusion (7) is slidably connected to the sliding groove (86).

3. The easy-to-maintain protective power transformer according to claim 2, characterized in that: A fixing hole (4) is provided inside the plug post (3), and sockets (10) matching the plug post (3) are provided at the four corners of the top of the installation box base (1). One end of the connecting rod (81) passes through the socket (10) and is inserted into the fixing hole (4).

4. The easy-to-maintain protective power transformer according to claim 1, characterized in that: A sealing strip is provided on the top of the installation box base (1); after the installation box base (1) and the cover body (2) are installed, the sealing strip seals between the installation box base (1) and the cover body (2).

5. The easy-to-maintain protective power transformer according to claim 3, characterized in that: The fixing holes (4) on the two transverse plug posts (3) are opened opposite to each other.

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