Microcomputer relay protection tester carrying protection box

Abstract

The utility model relates to the technical field of protection box, disclose a kind of protection box for carrying microcomputer relay protection tester, including box, the box top is provided with lid, the lid top is fixedly connected with handle, the box inside is provided with tester body, the box inside is provided with limiting component, the box inside is provided with protection component;The limiting component includes stop plate and rotating plate, the box inside is fixedly connected with limiting seat, rotating plate one end is rotatably connected in limiting seat interior, rotating plate side wall is slidably connected in limiting seat interior, the stop plate top is fixedly connected in rotating plate bottom, limiting seat interior is rotatably connected with rotating column.In the utility model, the effective limiting of tester body top is realized, prevent its up and down swing, reached when taking out and putting into tester can be quickly fixed to it, and ensured that tester does not appear the condition of shaking in the process of carrying in box.

Description

Technical Field

[0001] This utility model relates to the field of protection box technology, and in particular to a portable protection box for a microcomputer relay protection tester. Background Technology

[0002] As a core device in power systems for testing the performance of relay protection devices, the precision and stability of microprocessor-based relay protection testers directly affect the safe operation of power systems. In practical applications, the testers need to be frequently transported to different substations, power plants, and other field environments, thus placing extremely high demands on their protection during transportation. While traditional portable protection cases can provide basic physical protection, they are insufficient to meet the stability requirements of the testers in complex transportation scenarios, especially when dealing with external interference such as vibration and collisions. How to prevent damage to internal components due to shaking of the tester body has become a pressing technical problem in this field. Designing a protection case that combines flexible limiting and multiple protection functions is of great significance for improving the service life and testing accuracy of the testers.

[0003] In existing technologies, portable protective cases for instruments and equipment typically employ a basic case structure, often equipped with fixed partitions or cushioning layers inside. The instruments are encased and secured using static filling materials (such as foam or rubber pads). Some cases incorporate simple buckles or straps, requiring manual binding to secure the instruments within the case. The underlying technology relies primarily on the external protection of a rigid case and the cushioning and shock absorption of flexible materials. The sealed design of the case isolates dust and moisture, while the cushioning materials absorb external impacts, providing basic protection for the instruments. The design logic of this type of structure emphasizes "passive protection," meaning it uses a pre-designed, fixed space to house the instrument and relies on the physical properties of the materials themselves to reduce the impact of external shocks.

[0004] However, existing technologies suffer from a core problem: traditional tester protection boxes generally lack adjustable dynamic limiting structures. They can only simply place the tester inside the box for simple fixation, unable to flexibly limit movement according to the actual size or placement posture of the instrument. When the protection box is subjected to bumps, tilting, or collisions during transportation, the tester itself is prone to vertical shaking or displacement within the box, causing damage to internal precision parts due to vibration, and even resulting in malfunctions such as loose connections and poor wiring contact. This shaking problem not only affects the stability of the tester but also causes irreversible damage to its detection accuracy and service life, becoming a key technical bottleneck restricting the reliable transportation of equipment. To address this issue, a protective box for carrying a microprocessor-based relay protection tester is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a protective case for a portable microcomputer relay protection tester, which aims to improve the problem in the prior art where the tester body is prone to shaking or displacement inside the case when the protective case is subjected to bumps, tilting or collisions during transportation, resulting in damage to the internal precision parts due to vibration.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A portable protective case for a microprocessor-based relay protection tester includes a case body, a cover on the top of the case body, a handle fixedly connected to the top of the cover, a tester body inside the case body, a limit assembly inside the case body, and a protective assembly inside the case body. The limit assembly includes a limit plate and a rotating plate. A limit seat is fixedly connected inside the case body. One end of the rotating plate is rotatably connected inside the limit seat. The side wall of the rotating plate is slidably connected inside the limit seat. The top of the limit plate is fixedly connected to the bottom of the rotating plate. A rotating column is rotatably connected inside the limit seat. A rotating block is fixedly connected to the top of the rotating column. A limit post is fixedly connected to the bottom of the rotating block. A limit groove is formed inside the rotating plate. The side wall of the limit post is slidably connected inside the limit groove. A through hole is formed inside the rotating plate, and the rotating column is disposed inside the through hole.

[0008] As a further description of the above technical solution:

[0009] The protective assembly includes a base and an extrusion plate. The side wall of the base is slidably connected to the inside of the housing. The tester body is located inside the base. The extrusion plate is located inside the housing. A curved panel is fixedly connected to the top of the extrusion plate. The side wall of the extrusion plate is in contact with the side wall of the tester body.

[0010] As a further description of the above technical solution:

[0011] A handle is fixedly connected to the top of the rotating block, the bottom of the rotating block is in contact with the top of the rotating plate, an anti-slip plate is fixedly connected to the bottom of the limiting plate, and the bottom of the anti-slip plate is in contact with the top of the testing instrument body.

[0012] As a further description of the above technical solution:

[0013] A fixed base is fixedly connected inside the housing, and a slider is slidably connected inside the fixed base. A damper is provided inside the fixed base, with one end of the damper fixedly connected to the side wall of the slider and the other end of the damper fixedly connected inside the fixed base. A support arm is rotatably connected to the bottom of the base, and one end of the support arm is rotatably connected to the top of the slider.

[0014] As a further description of the above technical solution:

[0015] Multiple fixed bases and support arms are provided and distributed in a rectangular array at the bottom of the base.

[0016] As a further description of the above technical solution:

[0017] A connecting column is fixedly connected to the side wall of the extrusion plate, and a sliding plate is fixedly connected to one end of the connecting column. A groove is provided inside the box, and the side wall of the sliding plate is slidably connected inside the groove. A spring is provided inside the groove, and one end of the spring is fixedly connected to the side wall of the sliding plate, while the other end of the spring is fixedly connected to the inside of the box.

[0018] As a further description of the above technical solution:

[0019] Multiple extrusion plates are provided, and the extrusion plates are arranged in a rectangular array inside the box. Multiple connecting columns are provided and distributed in a rectangular array on the sidewalls of the extrusion plates.

[0020] As a further description of the above technical solution:

[0021] The side wall of the box is provided with a latch, the top of the box is fixedly connected with a sealing block, the side wall of the sealing block is slidably connected to the inside of the box cover, and the side wall of the box is fixedly connected with a rubber pad. Multiple rubber pads are provided and distributed in a rectangular array around the box.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the position of the limiting plate can be flexibly adjusted by the cooperation of the limiting block, the limiting post and the rotating plate through the limiting component, so as to effectively limit the top of the tester body and prevent it from shaking up and down. This achieves quick fixation when taking out and putting in the tester, and ensures that the tester will not shake in the box during the carrying process. It solves the problem that the traditional tester protection box only puts the tester in the box and lacks a limiting structure, which will cause shaking during transportation and carrying, resulting in damage to the internal parts of the tester. This improves the stability of the equipment.

[0024] 2. In this utility model, the base, in conjunction with the support arm and the extrusion plate, in conjunction with the connecting column, provides shock absorption and limiting protection for the tester body from the bottom and sides, reducing the damage to the tester body from external impacts. In the event of a collision or drop, it can perfectly and evenly protect all sides of the tester, solving the problem that traditional tester protection boxes lack an effective multi-faceted protection structure and cannot provide comprehensive protection for the tester, thus improving the safety of the equipment. Attached Figure Description

[0025] Figure 1This is a three-dimensional schematic diagram of a portable protection box for a microcomputer relay protection tester proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the limiting component of a protective box for a microcomputer relay protection tester proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the internal structure of the protective box for a portable microcomputer relay protection tester proposed in this utility model.

[0029] Figure 5 This is a schematic diagram of the protective components of a protective box for a portable microcomputer relay protection tester proposed in this utility model.

[0030] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. Box body; 2. Box lid; 3. Handle; 4. Lock; 5. Rubber pad; 6. Tester body; 7. Limiting plate; 8. Sealing block; 9. Extrusion plate; 10. Limiting seat; 11. Rotating plate; 12. Rotating column; 13. Rotating block; 14. Handle; 15. Through hole; 16. Limiting column; 17. Limiting groove; 18. Anti-slip plate; 19. Base; 20. Support arm; 21. Slider; 22. Damper; 23. Fixing seat; 24. Connecting column; 25. Groove; 26. Sliding plate; 27. Spring; 28. Curved panel. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0034] Reference Figures 1-4This utility model provides an embodiment of a portable protective case for a microcomputer relay protection tester, comprising a case body 1, a case cover 2 on the top of the case body 1 for sealing the case body 1 and preventing external dust, moisture, etc. from entering the interior of the case body 1, thus protecting the tester body 6. A handle 3 is fixedly connected to the top of the case cover 2 for easy carrying by the user, achieving the effect of easy portability. The tester body 6 is housed inside the case body 1, and a limit component and a protective component are also provided inside the case body 1. The limit component includes a limit plate 7 and a rotating plate 11. A limit seat 10 is fixedly connected inside the case body 1 for mounting the rotating plate 11 and the rotating column 12, thereby protecting the rotating plate 11. 1 and 12 provide support and a base for rotation, ensuring the normal operation of the limiting assembly. One end of the rotating plate 11 is rotatably connected to the inside of the limiting seat 10, and the side wall of the rotating plate 11 is slidably connected to the inside of the limiting seat 10. The rotating plate 11 serves to limit the limiting plate 7, and the position of the limiting plate 7 is adjusted by rotating the rotating plate 11. The top of the limiting plate 7 is fixedly connected to the bottom of the rotating plate 11. The rotating column 12 is rotatably connected inside the limiting seat 10, and the top of the rotating column 12 is fixedly connected to the rotating block 13. The rotating column 12 is used to transmit the rotational movement of the rotating block 13 to the bottom limiting column 16. The rotating block 13 cooperates with the rotating column 12 to perform coaxial rotational movement. When the user rotates the handle 1... At time 4, the rotating block 13 drives the rotating column 12 to rotate within the limiting seat 10, achieving the effect of controlling the movement of the bottom limiting structure through top operation. A limiting column 16 is fixedly connected to the bottom of the rotating block 13. A limiting groove 17 is formed inside the rotating plate 11, and the side wall of the limiting column 16 is slidably connected inside the limiting groove 17. The limiting column 16 is used to better restrict the lifting action of the rotating plate 11. By moving within the limiting groove 17, displacement of the rotating plate 11 is prevented. A through hole 15 is formed inside the rotating plate 11, and the rotating column 12 is positioned inside the through hole 15. When it is necessary to remove the tester body 6, rotating the rotating block 13 causes the limiting column 16 to disengage from the limiting groove 17, allowing the rotation to proceed smoothly. Plate 11 removes pressure on limit plate 7, allowing rotating plate 11 to rise. The bottom of rotating block 13 fits against the top of rotating plate 11 to increase fixing accuracy and prevent slight displacement. A handle 14 is fixedly connected to the top of rotating block 13 for the user to hold and drive rotating block 13 to rotate. It is a human-machine interface operating component, achieving convenient control of the limit component. An anti-slip plate 18 is fixedly connected to the bottom of limit plate 7. The bottom of anti-slip plate 18 fits against the top of tester body 6. It is made of rubber and its function is to increase the friction with the top of tester body 6 to prevent tester body 6 from sliding during the limiting process. This is common knowledge and will not be elaborated further here.

[0035] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6The protective components include a base 19 and a compression plate 9. The sidewall of the base 19 is slidably connected inside the housing 1 to support the tester body 6 and allow it to move up and down within the housing 1, thus supporting the tester body 6 and working in conjunction with the shock-absorbing structure. The compression plate 9 is located inside the housing 1, with its sidewall abutting against the sidewall of the tester body 6. It limits the tester body 6 from the side, preventing it from swaying left and right inside the housing 1 and stabilizing the tester body 6. A curved panel 28 is fixedly connected to the top of the compression plate 9, reducing obstruction to the tester body 6 entering the housing 1 through its arc structure. A fixed seat 23 is fixedly connected inside the housing 1 to install a damper 22 and a slider 21, ensuring the entire bottom cushioning system has reliable operation within the housing 1. The support, with its fixed connection, enhances the structural stability, allowing subsequent actions such as the sliding of slider 21 and the energy dissipation of damper 22 to proceed in an orderly manner. Loose installation will not affect the buffering effect, ensuring the reliable protection of the test instrument body 6 within the housing 1. The damper 22 is located inside the fixed base 23, which is slidably connected to slider 21, creating a movable buffer path. This allows slider 21 to flexibly adjust its position according to the magnitude and direction of the impact force, providing ample compression and extension space for damper 22. This enables damper 22 to effectively dissipate energy, thereby reducing the vibration amplitude of base 19 and test instrument body 6, and lowering the risk of internal component damage due to vibration. One end of the support arm 20 at the bottom of base 19 is rotatably connected to base 19. The other end rotates to connect to the slider 21, enabling the buffer system to better cope with impact forces from different directions. Furthermore, through the lever action of the support arm 20, the impact force can be rationally distributed, preventing excessive localized stress on the base 19 and further improving the overall protective performance of the tester body 6. This ensures the stability of the tester body 6 during transportation. Multiple fixed seats 23 and the support arm 20 are arranged in a rectangular array at the bottom of the base 19. This symmetrical arrangement ensures that the impact force received by the base 19 is evenly transmitted to the shock-absorbing structures on both sides, preventing excessive stress on one side and achieving balanced shock absorption and improved protection. The connecting column 24 is fixedly connected to the side wall of the extrusion plate 9, and the other end is connected to the sliding plate 26, used to transmit the lateral impact force received by the extrusion plate 9. The sliding plate 26 serves as a force conductor. Its sidewall is slidably connected to the groove 25 inside the housing 1, cooperating with the groove 25 for linear sliding motion. When the extrusion plate 9 is subjected to a lateral impact from the testing instrument body 6, the sliding plate 26 slides within the groove 25, guiding the movement of the extrusion plate 9 and preventing it from tilting or jamming. A spring 27 is located inside the groove 25, with one end connected to the sliding plate 26 and the other end connected to the housing 1. It generates elastic deformation when the sliding plate 26 slides, absorbing lateral impact forces and providing shock absorption protection for the sidewalls of the testing instrument body 6. Multiple extrusion plates 9 are arranged in a rectangular array inside the housing 1. Through symmetrical arrangement in all directions, they limit and buffer the testing instrument body 6 from multiple directions, forming a three-dimensional protective structure.The tester achieves comprehensive restraint of the instrument body 6 displacement and reduces impact. Multiple connecting posts 24 are arranged in a rectangular array on the side wall of the extrusion plate 9, so that the impact force on the extrusion plate 9 can be evenly transmitted to each connecting post 24, avoiding localized force concentration, ensuring stable movement of the extrusion plate 9, and improving overall protection performance. The latch 4 is set on the side wall of the housing 1 and is used to connect the housing 1 and the cover 2. The cover 2 is fixed to the top of the housing 1 through the latching structure, which seals the housing 1 and prevents the cover 2 from being opened accidentally. The sealing block 8 is fixedly connected to the top of the housing 1 and its side wall is slidably connected to the inside of the cover 2. The first rubber pad, made of rubber, serves to fill the gap between the housing 1 and the lid 2, enhancing the sealing performance and preventing external contaminants from entering. This is common knowledge and will not be elaborated further. The second rubber pad, also made of rubber, is fixedly connected around the housing 1. Its function is to absorb impact force through its own deformation when the housing 1 is subjected to external collisions, reducing the transmission of external impact to the internal testing instrument body 6. This is also common knowledge and will not be elaborated further. Multiple rubber pads 5 are arranged in a rectangular array, forming a surrounding buffer layer by being placed on the front, back, left, and right sides of the housing 1, achieving an all-around effect of resisting external impacts.

[0036] Working principle: When the tester body 6 is needed, the lid 2 is opened by the latch 4 on the side wall of the box 1. The handle 3 on the top of the lid 2 facilitates carrying and moving the protective box. The sealing block 8 on the top of the box 1 is slidably connected to the inside of the lid 2. When the lid 2 is closed, a sealing structure is formed. Together with the rubber pads 5 distributed in a rectangular array around the box 1, external dust and moisture are reduced from entering and impacts are reduced. After placing the tester body 6 inside the box 1, the handle 14 is turned, which drives the rotating block 13 to rotate. The rotating block 13 drives the rotating column 12 to rotate within the through hole 15. The limiting post 16 at the bottom of the rotating column 12 is located on the rotating plate. The 11 slides within the limiting groove 17, thereby driving the rotating plate 11 to rotate around the limiting seat 10, causing the limiting plate 7 to rotate and press down. The anti-slip plate 18 limits and fixes the tester body 6 in the vertical direction, preventing the tester body 6 from moving up and down within the housing 1. When the housing 1 is subjected to external impact, the base 19 will slide within the housing 1, driving the support arm 20 to rotate. The support arm 20 pushes the slider 21 to slide within the fixed seat 23, compressing the damper 22. The damper 22 absorbs and consumes the impact force, reducing the vibration of the tester body 6 and achieving buffer protection for the tester body 6 in the vertical direction. Since multiple fixed bases 23 and support arms 20 are provided and distributed in a rectangular array at the bottom of the base 19, the impact force can be evenly distributed from multiple directions, enhancing the protection effect. When the tester body 6 is subjected to external force from the side, the extrusion plate 9 is forced to move outward, causing the connecting column 24 and sliding plate 26 to slide in the groove 25, compressing the spring 27. The spring 27 generates a reverse elastic force to counteract the external force from the side. At the same time, the curved panel 28 fits the tester body 6, providing a more fitting protection. The multiple extrusion plates 9 are arranged in a rectangular array, which can provide all-round side protection for the tester body 6.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable protection case for a microprocessor-based relay protection tester, comprising a case body (1), characterized in that: The top of the box (1) is provided with a box cover (2), and a handle (3) is fixedly connected to the top of the box cover (2). The tester body (6) is provided inside the box (1). A limit component is provided inside the box (1). A protective component is provided inside the box (1). The limiting assembly includes a limiting plate (7) and a rotating plate (11). A limiting seat (10) is fixedly connected inside the housing (1). One end of the rotating plate (11) is rotatably connected inside the limiting seat (10). The side wall of the rotating plate (11) is slidably connected inside the limiting seat (10). The top of the limiting plate (7) is fixedly connected to the bottom of the rotating plate (11). A rotating column (12) is rotatably connected inside the limiting seat (10). A rotating block (13) is fixedly connected to the top of the rotating column (12). A limiting column (16) is fixedly connected to the bottom of the rotating block (13). A limiting groove (17) is opened inside the rotating plate (11). The side wall of the limiting column (16) is slidably connected inside the limiting groove (17). A through hole (15) is opened inside the rotating plate (11). The rotating column (12) is located inside the through hole (15).

2. The portable protection box for a microprocessor-based relay protection tester according to claim 1, characterized in that: The protective assembly includes a base (19) and an extrusion plate (9). The side wall of the base (19) is slidably connected to the inside of the housing (1). The tester body (6) is located inside the base (19). The extrusion plate (9) is located inside the housing (1). A curved panel (28) is fixedly connected to the top of the extrusion plate (9). The side wall of the extrusion plate (9) is in contact with the side wall of the tester body (6).

3. The portable protection box for a microprocessor-based relay protection tester according to claim 1, characterized in that: The top of the rotating block (13) is fixedly connected to a handle (14), the bottom of the rotating block (13) is in contact with the top of the rotating plate (11), the bottom of the limiting plate (7) is fixedly connected to an anti-slip plate (18), and the bottom of the anti-slip plate (18) is in contact with the top of the tester body (6).

4. The portable protection box for a microprocessor-based relay protection tester according to claim 2, characterized in that: The housing (1) is fixedly connected to a fixed seat (23), and a slider (21) is slidably connected inside the fixed seat (23). A damper (22) is provided inside the fixed seat (23). One end of the damper (22) is fixedly connected to the side wall of the slider (21), and the other end of the damper (22) is fixedly connected inside the fixed seat (23). A support arm (20) is rotatably connected to the bottom of the base (19), and one end of the support arm (20) is rotatably connected to the top of the slider (21).

5. The portable protection box for a microprocessor-based relay protection tester according to claim 4, characterized in that: Multiple fixed bases (23) and support arms (20) are provided and are distributed in a rectangular array at the bottom of the base (19).

6. The portable protection box for a microprocessor-based relay protection tester according to claim 2, characterized in that: A connecting column (24) is fixedly connected to the side wall of the extrusion plate (9). A sliding plate (26) is fixedly connected to one end of the connecting column (24). A groove (25) is provided inside the box body (1). The side wall of the sliding plate (26) is slidably connected inside the groove (25). A spring (27) is provided inside the groove (25). One end of the spring (27) is fixedly connected to the side wall of the sliding plate (26), and the other end of the spring (27) is fixedly connected inside the box body (1).

7. The portable protection box for a microprocessor-based relay protection tester according to claim 6, characterized in that: Multiple extrusion plates (9) are provided, and the extrusion plates (9) are arranged in a rectangular array inside the box (1). Multiple connecting columns (24) are provided and distributed in a rectangular array on the side wall of the extrusion plates (9).

8. The portable protection box for a microprocessor-based relay protection tester according to claim 2, characterized in that: The side wall of the box (1) is provided with a latch (4), and the top of the box (1) is fixedly connected with a sealing block (8). The side wall of the sealing block (8) is slidably connected to the inside of the box cover (2). The side wall of the box (1) is fixedly connected with a rubber pad (5). Multiple rubber pads (5) are provided and are distributed in a rectangular array around the box (1).

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