Electrical instrument with protection mechanism

Abstract

This utility model relates to the field of electrical instrumentation technology and discloses an electrical instrument with a protective mechanism, including an electrical instrument body, a baffle, and a limiting frame. A display screen and control buttons are mounted on the front of the electrical instrument body. A limiting frame is fixedly mounted on the front of the electrical instrument body, and a baffle is movably sleeved inside the upper part of the limiting frame. A light-transmitting sheet is fixedly embedded on the front of the baffle. This utility model uses a positioning plate, a limiting rod, a push plate, a first spring, a mounting groove, a limiting groove, and a second spring to facilitate limiting the insertion block. It can also push the insertion block into the limiting groove to release the limitation. At this time, the baffle and the insertion rod can be moved downwards, and through the cooperation of a positioning cover, a third spring, and a positioning block, the insertion rod can be limited, increasing the stability of the baffle. The baffle can then be placed directly in front of the electrical instrument body to protect the display screen and control buttons, preventing damage to the display screen from accidental impacts.

Description

Technical Field

[0001] This utility model relates to the field of electrical instrumentation technology, and specifically to an electrical instrument with a protective mechanism. Background Technology

[0002] Electrical instruments are a class of instruments specifically designed for measuring and monitoring electrical parameters (such as voltage, current, resistance, power, and electrical energy). Their core functions include real-time data acquisition, display, recording, and control, providing crucial support for the safe operation of power systems and energy management. These instruments include voltmeters, ammeters, and wattmeters. They are widely used in power, electronics, and communications fields to ensure the stable operation of electrical systems.

[0003] Currently, during the use of electrical instruments, the display screen and control buttons on the front are usually directly exposed to the outside world. When used in some harsh environments, there is a lack of protective measures. On the one hand, they are easily affected by pollution such as dust and impurities in the environment. On the other hand, the display screen is easily damaged by impacts, which needs to be improved. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an electrical instrument with a protective mechanism to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution:

[0006] This utility model provides an electrical instrument with a protective mechanism, including an electrical instrument body, a baffle, and a limiting frame. A display screen and control buttons are mounted on the front of the electrical instrument body. A limiting frame is fixedly mounted around the display screen, and a slide rail is provided inside the limiting frame. The baffle is embedded in the slide rail and can move vertically up and down within the limiting frame. A through hole matching the display screen is opened in the center of the baffle, and a light-transmitting sheet is fixedly embedded in the through hole. Limiting grooves are opened on the lower sides of both sides of the baffle, and mounting grooves are opened on the upper sides of both sides of the inner wall of the limiting frame. A first limiting mechanism is provided inside the mounting groove and the limiting groove. The first limiting mechanism is used to limit and fix the baffle when it slides to the top of the limiting frame.

[0007] The bottom of the limiting frame is provided with a positioning cover, and the bottom of the baffle is provided with a plug rod that matches the shape of the positioning cover. The plug rod is used to limit and fix the baffle when it slides to the bottom of the limiting frame.

[0008] Preferably, a baffle is fixedly connected to the top of the baffle, a rubber sealing cover is fixedly connected to the bottom of the baffle, and a sealing groove adapted to the shape of the rubber sealing cover is provided on the top of the limiting frame.

[0009] Preferably, a handle is fixedly connected to the top of the baffle.

[0010] Preferably, the first limiting mechanism includes a positioning plate, a limiting rod, a second spring, and an insert block. One end of the limiting rod is close to the insert block, and the other end is fixedly connected to the positioning plate. The insert block is slidably disposed in the mounting groove and the limiting groove. A second spring is fixedly connected inside the limiting groove, and the second spring is fixedly connected to the side of the insert block near the baffle. A push plate is provided between the limiting rod and the insert block, and the push plate is disposed in the mounting groove. One side of the push plate is fixedly connected to the limiting rod, and the other side overlaps the insert block.

[0011] Preferably, a first spring is movably sleeved on the outer wall of the limiting rod.

[0012] Preferably, the height of the push plate is greater than the height of the limiting groove.

[0013] Preferably, there are two positioning covers, which are fixed to the two sides of the bottom of the limiting frame respectively. The two sides of the bottom of the limiting frame are provided with openings that are adapted to the outer wall of the insertion rod, and the openings extend into the positioning cover.

[0014] Preferably, the inner walls on both sides of the opening in the positioning cover are provided with grooves, and a third spring is fixedly installed in the grooves. A positioning block is fixedly connected to one end of the third spring near the opening.

[0015] Preferably, the end of the positioning block near the opening is designed to be arc-shaped, and arc-shaped grooves matching the end of the positioning block are opened on both sides below the insertion rod.

[0016] Preferably, the limiting frame is bonded to the electrical instrument body with strong adhesive.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] 1. This utility model uses a positioning plate, a limiting rod, a push plate, a first spring, a mounting groove, a limiting groove, and a second spring to facilitate the limiting of the insert block. It can also push the insert block to move into the limiting groove to release the limiting of the insert block. At this time, the baffle and the insert rod can be moved downwards, and the positioning cover, the third spring, and the positioning block can cooperate to limit the insert rod and increase the stability of the baffle. At this time, the baffle can be placed in front of the electrical instrument body to protect the display screen and control buttons and avoid damage to the display screen if it is accidentally bumped.

[0019] 2. When the baffle is fully inserted into the limiting frame, the baffle can move the baffle to the top of the limiting frame and the rubber sealing cover can be fitted inside the sealing groove, thereby increasing the sealing between the baffle and the limiting frame. The baffle, baffle, rubber sealing cover, limiting frame and sealing groove can reduce the pollution of the display screen and control buttons caused by dust and impurities in the environment. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of the electrical instrument with a protective mechanism provided in this embodiment;

[0021] Figure 2 This is a schematic diagram of the electrical instrumentation after the baffle is lowered.

[0022] Figure 3 This is a schematic diagram of the baffle and rubber sealing cover structure in this embodiment;

[0023] Figure 4 This is a cross-sectional view of the baffle and limiting frame structure provided in this embodiment;

[0024] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point A in the diagram;

[0025] Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram;

[0026] The attached diagram is labeled as follows: 1. Electrical instrument body; 2. Baffle; 21. Handle; 22. Stop bar; 23. Rubber sealing cover; 24. Light-transmitting sheet; 3. Limiting frame; 31. Sealing groove; 32. Positioning plate; 33. Limiting rod; 34. Push plate; 35. First spring; 36. Mounting groove; 37. Limiting groove; 38. Second spring; 39. Insert block; 4. Insert rod; 5. Through port; 6. Positioning cover; 7. Third spring; 8. Positioning block; 9. Display screen; 10. Control button. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Furthermore, the structural forms described in the following embodiments are merely illustrative. The electrical instrument with a protective mechanism involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. The technical features in the various embodiments of this utility model can be combined accordingly without mutual conflict.

[0028] In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] In the description of this utility model, it should be understood that the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include at least one of those features.

[0030] like Figure 1 and Figure 2 As shown, in a preferred embodiment of this utility model, this embodiment provides an electrical instrument with a protective mechanism, including an electrical instrument body 1, a baffle 2, and a limiting frame 3. A display screen 9 and control buttons 10 are mounted on the front of the electrical instrument body 1, and a limiting frame 3 is fixedly mounted around the display screen 9. In this embodiment, the electrical instrument body 1 is model DED194E-9SY, and the limiting frame 3 is glued to the electrical instrument body 1 with strong adhesive to fix the limiting frame 3. A slide rail is provided on the inner side of the limiting frame 3, and the baffle 2 is embedded in the slide rail and can move vertically up and down within the limiting frame 3. A through hole matching the size of the display screen 9 is opened in the middle of the baffle 2, and a light-transmitting sheet 24 is fixedly embedded in the through hole. Through the setting of the light-transmitting sheet 24, after the baffle 2 slides down, the operator can observe the display screen 9 of the electrical instrument body 1 through the baffle 2. In this embodiment, a stop strip 22 is fixedly connected to the top of the baffle 2, such as... Figure 3 As shown, a rubber sealing cover 23 is fixedly connected to the bottom of the baffle 22, and a sealing groove 31 matching the shape of the rubber sealing cover 23 is provided on the top of the limiting frame 3. When the baffle 22 moves to the top of the limiting frame 3, the rubber sealing cover 23 is embedded in the sealing groove 31, thereby increasing the sealing between the baffle 22 and the limiting frame 3 and reducing the contamination of the display screen 9 and the control buttons 10 by dust and impurities in the environment. A handle 21 is also provided on the top of the baffle 22. The handle 21 is fixedly connected to the baffle 22, and the baffle 2 can be moved by lifting it up or lowering it down.

[0031] like Figure 4 As shown, limiting grooves 37 are provided on the lower part of the side walls of the baffle 2, and mounting grooves 36 are provided on the upper part of the inner walls of the limiting frame 3. A first limiting mechanism is provided on the inner walls of the mounting grooves 36 and the limiting grooves 37 to limit and fix the baffle 2 when it slides to the top of the limiting frame 3. In this embodiment, as... Figure 5As shown, the first limiting mechanism includes a positioning plate 32, a limiting rod 33, a second spring 38, and an insert block 39. The upper and lower ends of the insert block 39 are slidably disposed within the mounting groove 36 and the limiting groove 37. By positioning the insert block 39 within the space between the mounting groove 36 and the limiting groove 37, the baffle 2 can be limited. The second spring 38 is disposed within the limiting groove 37. One end of the second spring 38 is fixedly connected to the inner wall of the limiting groove 37, and the other end is fixedly connected to the side wall of the insert block 39. The limiting rod 33 is disposed on the other side of the insert block 39. A push plate 34 is also disposed between the limiting rod 33 and the insert block 39. The push plate 34 is disposed inside the mounting groove 36. One side of the push plate 34 is fixedly connected to the limiting rod 33, and the other side overlaps the insert block 39. The end of the limiting rod 33 away from the push plate 34 extends outside the limiting frame 3 and is fixedly connected to the positioning plate 32. In this embodiment, the height of the limiting groove 37 is less than the height of the mounting groove 36, and the height of the push plate 34 is greater than the height of the limiting groove 37 and the insertion block 39. When the limiting rod 33 pushes the insertion block 39 into the limiting groove 37, the push plate 34 connected to the limiting rod 33 pushes the insertion block 39 into the limiting groove 37. Since the height of the push plate 34 is greater than the height of the limiting groove 37, the push plate 34 abuts against the upper and lower parts of the opening of the limiting groove 37 and cannot enter the limiting groove 37. However, due to the pressure of the push plate 34, the insertion block 39 is located exactly in the limiting groove 37. At this time, the baffle 2 can be moved up or down. In this embodiment, a first spring 35 is also movably sleeved on the outer wall of the limiting rod 33. In use, the operator can push the limiting rod 33 and the first spring 35 towards the baffle 2 using the positioning plates 32 on both sides of the limiting frame 3. One end of the limiting rod 33 pushes one side of the insert 39 from inside the mounting groove 36 to inside the limiting groove 37 via the push plate 34. At this time, the baffle 2 can be moved downwards using the handle 21, and the limiting rod 33, through the elasticity of the first spring 35, drives the push plate 34 back into the mounting groove 36. Moving the baffle 22 to the top of the limiting frame 3, the rubber sealing cover 23 is embedded inside the sealing groove 31, covering the front of the electrical instrument body 1, thereby achieving the purpose of protecting the display screen 9 and the control buttons 10. When the baffle 2 is pulled upwards by the handle 21 to the position of the mounting groove 36 on the limiting frame 3, the elasticity of the second spring 38 drives one side of the insert 39 to insert into the mounting groove 36, limiting the baffle 2.

[0032] like Figure 1 As shown, in the device provided by this utility model, a positioning cover 6 is fixedly provided at the bottom of the limiting frame 3, and an insertion rod 4 matching the shape of the positioning cover 6 is provided at the bottom of the baffle 2. When the baffle 2 is completely moved to the bottom of the limiting frame 3, the insertion rod 4 can be inserted into the interior of the positioning cover 6 to limit and fix the baffle 2. In this embodiment, as shown... Figure 6As shown, there are two insertion rods 4 and two positioning covers 6. The insertion rods 4 are located on both sides of the bottom of the baffle 2, and the positioning covers 6 are located on both sides of the bottom of the limiting frame 3. The bottom of the limiting frame 3 has openings 5 ​​on both sides that fit the outer wall of the insertion rods 4, and the openings 5 ​​extend into the positioning covers 6. The inner walls of the positioning covers 6 on both sides of the openings 5 ​​have grooves, and a third spring 7 is fixedly installed in the grooves. A positioning block 8 is fixedly connected to one end of the third spring 7 near the opening 5. The positioning block 8 is slidably installed in the grooves, and the end of the positioning block 8 near the opening 5 is designed to be arc-shaped. Arc-shaped grooves matching the shape of the end of the positioning block 8 are opened on both sides below the insertion rods 4. When the baffle 2 slides to the bottom of the limiting frame 3, the baffle 2 continues to slide down by the handle 21, allowing the insertion rod 4 to pass through the opening 5 and be inserted into the positioning cover 6. When the insertion rod 4 moves into the positioning cover 6, its two sides can press against the positioning block 8. The positioning block 8 compresses one end of the third spring 7. Due to the pressure of the insertion rod 4, the positioning block 8 is pressed into the groove. When the arc-shaped groove on the outer wall of the insertion rod 4 moves to one side of the positioning block 8, the elasticity of the third spring 7 drives the positioning block 8 to rebound, so that the arc-shaped end of the positioning block 8 abuts against the arc-shaped groove on the outer wall of the insertion rod 4, thereby limiting the insertion rod 4 and thus limiting and fixing the baffle 2. In this embodiment, if the control button 10 on the front of the electrical instrument body 1 needs to be used, the baffle 22 and the baffle 2 can be moved upward by the handle 21, and the baffle 2 drives the insertion rod 4 to move upward. The insertion rod 4 presses against the positioning blocks 8 on both sides, and the positioning blocks 8 compress one end of the third spring 7, thereby causing the positioning blocks 8 to be pressed back into the groove. This allows the arc-shaped groove on the outer wall of the insertion rod 4 to disengage from the positioning blocks 8. Afterward, the positioning blocks 8 return to the opening 5 due to the elasticity of the third spring 7. The baffle 2 continues to move upward, causing the insertion block 39 to move to one side of the mounting groove 36, thereby opening the space between the baffle 2 and the limiting frame 3, allowing the use of the control buttons 10 on the front of the electrical instrument body 1.

[0033] The embodiments described above are merely preferred solutions of this utility model, and are not intended to limit the scope of this utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this utility model. Therefore, all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. An electrical instrument with a protective mechanism, characterized in that, The instrument includes an electrical instrument body (1), a baffle (2), and a limiting frame (3). The electrical instrument body (1) has a display screen (9) and control buttons (10) installed on its front side. The limiting frame (3) is fixedly installed around the display screen (9). The limiting frame (3) has a slide rail inside. The baffle (2) is embedded in the slide rail and can move up and down vertically within the limiting frame (3). The baffle (2) has a through hole in the middle that matches the display screen (9). A light-transmitting sheet (24) is fixedly embedded in the through hole. Limiting grooves (37) are opened on the lower sides of both sides of the baffle (2). Mounting grooves (36) are opened on the upper sides of both sides of the inner wall of the limiting frame (3). The mounting grooves (36) and the limiting grooves (37) are provided with a first limiting mechanism. The first limiting mechanism is used to limit and fix the baffle (2) when it slides to the top of the limiting frame (3). The bottom of the limiting frame (3) is provided with a positioning cover (6), and the bottom of the baffle (2) is provided with a plug (4) that matches the shape of the positioning cover (6). The plug (4) is used to limit and fix the baffle (2) when the baffle (2) slides to the bottom of the limiting frame (3).

2. The electrical instrument with a protective mechanism according to claim 1, characterized in that: The top of the baffle (2) is fixedly connected to a baffle strip (22), the bottom of the baffle strip (22) is fixedly connected to a rubber sealing cover (23), and the top of the limiting frame (3) is provided with a sealing groove (31) that matches the shape of the rubber sealing cover (23).

3. The electrical instrument with a protective mechanism according to claim 2, characterized in that: A handle (21) is fixedly connected to the top of the stop bar (22).

4. The electrical instrument with a protective mechanism according to claim 1, characterized in that: The first limiting mechanism includes a positioning plate (32), a limiting rod (33), a second spring (38), and an insert (39). One end of the limiting rod (33) is close to the insert (39), and the other end is fixedly connected to the positioning plate (32). The insert (39) is slidably disposed in the mounting groove (36) and the limiting groove (37). The second spring (38) is fixedly connected inside the limiting groove (37), and the second spring (38) is fixedly connected to the side of the insert (39) close to the baffle (2). A push plate (34) is provided between the limiting rod (33) and the insert (39), and the push plate (34) is disposed in the mounting groove (36). One side of the push plate (34) is fixedly connected to the limiting rod (33), and the other side overlaps the insert (39).

5. An electrical instrument with a protective mechanism according to claim 4, characterized in that: The outer wall of the limiting rod (33) is movably sleeved with a first spring (35).

6. The electrical instrument with a protective mechanism according to claim 4, characterized in that: The height of the push plate (34) is greater than the height of the limiting groove (37).

7. An electrical instrument with a protective mechanism according to claim 1, characterized in that: Two positioning covers (6) are provided, which are fixed on both sides of the bottom of the limiting frame (3). The bottom sides of the limiting frame (3) are provided with openings (5) that are adapted to the outer wall of the insertion rod (4), and the openings (5) extend into the positioning cover (6).

8. An electrical instrument with a protective mechanism according to claim 7, characterized in that: The inner walls of the through-hole (5) in the positioning cover (6) are provided with grooves, and a third spring (7) is fixedly installed in the grooves. A positioning block (8) is fixedly connected to one end of the third spring (7) near the through-hole (5).

9. An electrical instrument with a protective mechanism according to claim 8, characterized in that: The end of the positioning block (8) near the opening (5) is designed to be arc-shaped, and arc-shaped grooves matching the end of the positioning block (8) are provided on both sides below the insertion rod (4).

10. An electrical instrument with a protective mechanism according to claim 1, characterized in that: The limiting frame (3) is bonded to the electrical instrument body (1) with strong adhesive.

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