A three-phase voltmeter housing structure

Abstract

The utility model discloses a three -phase voltmeter shell structure, including the shell, the inside of shell is equipped with three -phase voltmeter body, and the fixed mechanism includes the mounting panel of fixed in the top and bottom of shell, and the top and bottom both ends of two mounting panels are all seted up the communicating inclined groove, and the top and bottom other side of two mounting panels are seted up the communicating straight groove, and multiple straight grooves are communicated with corresponding inclined groove, and the inside of multiple straight grooves all slide and are equipped with the gyro wheel, and the side of multiple gyro wheels close three -phase voltmeter body all rotatoryly connects with the connecting plate, and four connecting plates are two two correspondences, and the side of two connecting plates each other close is fixed with same L type fixed plate. The utility model has realized the effect of quick installation and disassembly to three -phase voltmeter body, has saved the complicated step of three -phase voltmeter body disassembly, and has improved three -phase voltmeter body measurement's stability and accuracy, has avoided the measurement error of the equipment swing.

Description

Technical Field

[0001] This utility model relates to the field of three-phase voltmeter technology, and in particular to a three-phase voltmeter housing structure. Background Technology

[0002] A three-phase voltmeter is an instrument specifically designed for measuring voltage parameters in three-phase electrical systems. It is widely used in high-voltage and low-voltage switchgear. Its voltage unit is volt (V), and the measurement results are displayed digitally. An analog-to-digital converter (A / D converter) converts the voltage value into a digital signal. This instrument is suitable for use in environments with a temperature range of 0 to 50°C and humidity not exceeding 85%.

[0003] Generally, three-phase voltmeters require effective protection through a casing to ensure stable operation. However, traditional designs typically fix the three-phase voltmeter inside the casing, which brings many inconveniences in actual operation. When maintenance is required, technicians often face the problem of complex disassembly, which is time-consuming and laborious, thus increasing maintenance time costs and significantly reducing work efficiency. Therefore, there is an urgent need for a three-phase voltmeter casing structure to solve these problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a three-phase voltmeter housing structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A three-phase voltmeter housing structure includes a housing, inside which a three-phase voltmeter body is disposed. Fixing mechanisms for conveniently securing the three-phase voltmeter body are provided at both ends of the housing's interior. Limiting mechanisms for restricting the movement of the three-phase voltmeter body are provided at the top and bottom of the housing. The fixing mechanisms include mounting plates fixed to the top and bottom of the housing. Both ends of the top and bottom of the two mounting plates have communicating oblique grooves. The other side of the top and bottom of the two mounting plates has communicating straight grooves, and multiple straight grooves communicate with corresponding oblique grooves. Rollers are slidably disposed inside each of the multiple straight grooves. Connecting plates are rotatably connected to the side of each roller near the three-phase voltmeter body, and the four connecting plates are paired. The side of two connecting plates close to each other is fixed with the same L-shaped fixing plate, which clamps and fixes both ends of the three-phase voltmeter body.

[0006] Preferably, anti-slip pads are installed on one end of the inner wall of each of the two L-shaped fixing plates that are close to each other.

[0007] Preferably, a transparent access door is provided on one side of the housing.

[0008] Preferably, one end of two return springs is fixed to the inner wall of the outer shell away from the transparent inspection door, and the other end of the two return springs is fixed to the same compression plate.

[0009] Preferably, the top and bottom of the side of the extrusion plate near the three-phase voltmeter body are provided with sliding grooves, and the top and bottom of the two L-shaped fixing plates near the extrusion plate are fixed with sliders, which are slidably disposed inside the sliding grooves. The three-phase voltmeter body can be easily removed by means of a return spring.

[0010] Preferably, the limiting mechanism includes a sleeve fixed to one side of the top and bottom of the outer casing. A sliding rod is slidably provided through the top of the inner part of the sleeve. A limiting block is fixed to the side of the two sliding rods that are close to each other. One end of a first spring is fixed to the side of the two limiting blocks that are far from each other. The other end of the first spring is fixedly connected to the inner wall of the sleeve. Holes for the limiting blocks to pass through are provided at the top and bottom of the outer casing and the mounting plate. A fixing seat is installed on the side of the three-phase voltmeter body near the limiting block. The side of the limiting block near the three-phase voltmeter body is arc-shaped and can limit the fixing seat.

[0011] Preferably, both ends of the outer casing are provided with communicating heat dissipation holes.

[0012] The beneficial effects of this utility model are as follows: 1. Due to the adoption of a fixing mechanism, the four corners of the fixing base are placed on the surface of four connecting plates. Then, by pushing the three-phase voltmeter body, the L-shaped fixing plate is moved. The L-shaped fixing plate drives the roller to slide in the inclined groove. Then, the L-shaped fixing plates at both ends gradually approach the outer walls of the two ends of the three-phase voltmeter body. When the roller moves into the inside of the straight groove, the two anti-slip pads will contact the two ends of the three-phase voltmeter body and clamp and fix the three-phase voltmeter body. Then, the side of the fixing base is limited by the limiting block. During disassembly, the sliding rod drives the limiting block away from the fixing base. Then, the return spring will drive the pressing plate to return to its original position and push the three-phase voltmeter body out of the housing. When the roller moves into the inclined groove, the L-shaped fixing plate will move away from the two ends of the three-phase voltmeter body. Thus, the three-phase voltmeter body can be quickly installed and disassembled. The operation is simple, saving the tedious steps of disassembling the three-phase voltmeter body, improving the work efficiency of the three-phase voltmeter body maintenance, and improving the stability and accuracy of the three-phase voltmeter body measurement, avoiding measurement errors caused by equipment shaking. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a three-phase voltmeter housing structure proposed in this utility model. Figure 2 This is a schematic diagram of the internal structure of a three-phase voltmeter housing according to the present invention. Figure 3 This is a schematic diagram of the first partial structure of the fixing mechanism for the housing structure of a three-phase voltmeter proposed in this utility model; Figure 4 This is a partially exploded structural diagram of the fixing mechanism of the housing structure of a three-phase voltmeter proposed in this utility model; Figure 5 This is a cross-sectional view of the sleeve structure of a three-phase voltmeter housing proposed in this utility model.

[0014] In the diagram: 1. Outer shell; 101. Transparent inspection door; 102. Heat dissipation hole; 2. Sleeve; 201. Slide rod; 202. First spring; 203. Limiting block; 3. Three-phase voltmeter body; 301. Fixing base; 4. Mounting plate; 401. Inclined groove; 402. Straight groove; 403. Roller; 404. Connecting plate; 405. L-shaped fixing plate; 406. Extrusion plate; 407. Slide groove; 408. Return spring; 409. Slider; 410. Anti-slip pad. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-5 A three-phase voltmeter housing structure includes a housing 1, a three-phase voltmeter body 3 inside the housing 1, a fixing mechanism for conveniently fixing the three-phase voltmeter body 3 at both ends inside the housing 1, and a limiting mechanism for limiting the three-phase voltmeter body 3 at the top and bottom of the housing 1. The fixing mechanism includes mounting plates 4 fixed to the top and bottom of the outer casing 1. Both ends of the top and bottom of the two mounting plates 4 are provided with communicating inclined grooves 401. The other side of the top and bottom of the two mounting plates 4 is provided with communicating straight grooves 402. Multiple straight grooves 402 are connected to the corresponding inclined grooves 401. Rollers 403 are slidably provided inside the multiple straight grooves 402. Each of the multiple rollers 403 is rotatably connected to a connecting plate 404 on the side of the three-phase voltmeter body 3. The four connecting plates 404 are paired. The same L-shaped fixing plate 405 is fixed on the side of the two connecting plates 404 that are close to each other. The L-shaped fixing plate 405 can clamp and fix the two ends of the three-phase voltmeter body 3.

[0017] In this utility model, anti-slip pads 410 are installed on one end of the inner wall of the two L-shaped fixing plates 405 that are close to each other.

[0018] In this utility model, a transparent inspection door 101 is provided on one side of the outer shell 1.

[0019] In this utility model, one end of two return springs 408 is fixed on the inner wall side of the outer shell 1 away from the transparent inspection door 101, and the other end of the two return springs 408 is fixed with the same compression plate 406.

[0020] In this utility model, the top and bottom of the side of the extrusion plate 406 near the three-phase voltmeter body 3 are provided with sliding grooves 407, and the top and bottom of the two L-shaped fixing plates 405 near the extrusion plate 406 are fixed with sliders 409, and the sliders 409 are slidably disposed inside the sliding grooves 407. The three-phase voltmeter body 3 can be easily removed by means of the return spring 408.

[0021] In this utility model, the limiting mechanism includes a sleeve 2 fixed to one side of the top and bottom of the outer shell 1. A sliding rod 201 is slidably provided through the top of the inner part of the sleeve 2. Limiting blocks 203 are fixed on the sides of the two sliding rods 201 that are close to each other. One end of a first spring 202 is fixed on the side of the two limiting blocks 203 that are far from each other. The other end of the first spring 202 is fixedly connected to the inner wall of the sleeve 2. Holes for the limiting blocks 203 to pass through are provided at the top and bottom of the outer shell 1 and the mounting plate 4. A fixing seat 301 is installed on the side of the three-phase voltmeter body 3 near the limiting block 203. The side of the limiting block 203 near the three-phase voltmeter body 3 is arc-shaped and can limit the fixing seat 301.

[0022] In this utility model, both ends of the outer shell 1 are provided with interconnected heat dissipation holes 102.

[0023] Working principle: In use, first open the transparent inspection door 101, then place the three-phase voltmeter body 3 to be installed inside the outer casing 1, then place the four corners of the fixing base 301 on the surface of the four connecting plates 404, then press the three-phase voltmeter body 3 to squeeze the L-shaped fixing plate 405, and then the L-shaped fixing plate 405 will squeeze the pressing plate 406. The L-shaped fixing plate 405 will drive the roller 403 to move in the inclined groove 401, and drive the two anti-slip pads. As roller 403 moves from the inclined groove 401 into the straight groove 402, the anti-slip pads 410 at both ends contact the outer walls of the three-phase voltmeter body 3, clamping and fixing it. When the L-shaped fixing plate 405 moves, it drives the slider 409 to slide inside the groove 407, providing stability to the L-shaped fixing plate 405. Then, the pressing plate 406 presses against the return spring 408, thereby achieving... To facilitate rapid installation of the three-phase voltmeter body 3, when the mounting base 301 moves closer to the arc-shaped surface of the limiting block 203, it will press against the limiting block 203. At this time, the limiting block 203 will press against the first spring 202 and move away from the top and bottom of the mounting base 301. When one side of the mounting base 301 contacts the other side of the limiting block 203, the first spring 202 will drive the limiting block 203 to reset, and the limiting block 203 will limit the top and bottom of the mounting base 301, preventing... The anti-squeeze plate 406 pushes the three-phase voltmeter body 3 to move freely. When the three-phase voltmeter body 3 needs to be disassembled and repaired, the two slide rods 201 are pulled, and the limit block 203 is moved away from the fixed seat 301. At this time, the limit block 203 will release the limit on the fixed seat 301. Then the return spring 408 will drive the slide groove 407 to reset and push the L-shaped fixed plate 405. Then the three-phase voltmeter body 3 is pushed out of the housing 1 through the L-shaped fixed plate 405, and the effect of quick disassembly is achieved.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A three-phase voltmeter housing structure, comprising a housing (1), characterized in that, The housing (1) is provided with a three-phase voltmeter body (3) inside. The housing (1) is provided with a fixing mechanism at both ends inside for easy fixing of the three-phase voltmeter body (3). The housing (1) is provided with a limiting mechanism at the top and bottom for limiting the position of the three-phase voltmeter body (3). The fixing mechanism includes mounting plates (4) fixed to the top and bottom of the outer shell (1). Both ends of the top and bottom of the two mounting plates (4) are provided with communicating inclined grooves (401). The other side of the top and bottom of the two mounting plates (4) is provided with communicating straight grooves (402). Multiple straight grooves (402) are connected to the corresponding inclined grooves (401). Rollers (403) are slidably provided inside the multiple straight grooves (402). The side of the multiple rollers (403) close to the three-phase voltmeter body (3) is rotatably connected to the connecting plate (404). The four connecting plates (404) are paired. The side of the two connecting plates (404) close to each other is fixed with the same L-shaped fixing plate (405).

2. The housing structure of the three-phase voltmeter according to claim 1, characterized in that, Anti-slip pads (410) are installed on one end of the inner wall of the two L-shaped fixing plates (405) that are close to each other.

3. The housing structure of the three-phase voltmeter according to claim 1, characterized in that, A transparent inspection door (101) is provided on one side of the outer casing (1).

4. The three-phase voltmeter housing structure according to claim 3, characterized in that, Two return springs (408) are fixed to one end of the inner wall of the outer shell (1) away from the transparent inspection door (101), and the other end of the two return springs (408) is fixed to the same compression plate (406).

5. The three-phase voltmeter housing structure according to claim 4, characterized in that, The extrusion plate (406) has grooves (407) on both the top and bottom of the side near the three-phase voltmeter body (3). The two L-shaped fixing plates (405) have sliders (409) fixed on the top and bottom of the extrusion plate (406), and the sliders (409) are slidably disposed inside the grooves (407).

6. The housing structure of the three-phase voltmeter according to claim 1, characterized in that, The limiting mechanism includes a sleeve (2) fixed to one side of the top and bottom of the outer shell (1). A sliding rod (201) is slidably provided through the top of the inner part of the sleeve (2). A limiting block (203) is fixed on the side of the two sliding rods (201) that are close to each other. One end of a first spring (202) is fixed on the side of the two limiting blocks (203) that are far apart from each other. The other end of the first spring (202) is fixedly connected to the inner wall of the sleeve (2). Holes for the limiting blocks (203) to pass through are provided at the top and bottom of the outer shell (1) and the mounting plate (4). A fixing seat (301) is installed on the side of the three-phase voltmeter body (3) that is close to the limiting block (203).

7. The housing structure of the three-phase voltmeter according to claim 1, characterized in that, Both ends of the outer shell (1) are provided with heat dissipation holes (102).

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