Direct-current resistance tester for box-type transformer

Abstract

The utility model relates to the technical field of direct-current resistance testers, and discloses a box-type transformer direct-current resistance tester which comprises an outer shell, the inner wall of the outer shell is connected with a storage plate in a sliding mode, the lower surface of the storage plate is fixedly connected with a sliding rod, the upper side of the outer wall of the sliding rod is sleeved with a first buffer spring, and the outer wall of the sliding rod is sleeved with a second buffer spring. And one end of the first buffer spring is fixedly connected to the lower surface of the storage plate, a fixing disc is fixedly connected to the lower surface of the first buffer spring, the outer wall of the fixing disc is fixedly connected to the interior of the outer shell, and a bottom plate is fixedly connected to the bottom of the sliding rod. According to the utility model, firstly, when the outer shell of the tester is subjected to an external force, the problem that the internal main body is damaged due to the fact that the tester is easily influenced by the external force when the tester is conveyed or used is solved, and the effects of effectively buffering and protecting the resistance tester, reducing the external impact on the internal components and reducing the equipment damage probability are achieved; and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current resistance testers, in particular to a box-type transformer direct current resistance tester. Background Art

[0002] The box-type transformer DC resistance tester is an instrument used to measure the DC resistance of transformer windings. It is usually composed of a test host, a power module, a control module, a display module, etc. The tester has the characteristics of fast test speed, high accuracy, and easy operation. It is widely used in power, railway, communication and other industries.

[0003] After searching, a box-type transformer DC resistance tester is disclosed in the announcement number: CN218068144U, including a box, a tester body is installed on the bottom inner wall of the box, air guide boxes are fixedly installed on the inner walls on both sides of the box, an air guide mechanism is arranged in the air guide box, two symmetrically arranged transmission rods are rotatably connected to the inner wall of the box, a motor is fixedly installed on the top inner wall of the box, the output shaft of the motor is fixedly connected to the corresponding transmission rod, the transmission rod is transmission-connected to the air guide mechanism, a dustproof net is installed on the inner wall of the air guide box, a cleaning mechanism is arranged in the air guide box, the cleaning mechanism and the dustproof net cooperate with each other, and four symmetrically arranged supporting legs are fixedly installed on the bottom of the box. The utility model discloses a box-type transformer DC resistance tester, which can facilitate the cooling of the resistance tester by blowing air, filter the blown-in gas, and continuously maintain the maximum filtering effect. In the application, the first bevel gear and the second bevel gear are meshed with each other, and the fan blades and the air guide box cooperate with each other to cool the tester body by blowing air. Such an arrangement is easily affected by external forces when the tester is transported or used, causing damage to the internal body, resulting in damage to internal components, thereby shortening the service life of the equipment. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a box-type transformer DC resistance tester, which aims to improve the problem that the tester is easily affected by external forces during transportation or use, causing damage to the internal body, resulting in damage to internal components, thereby shortening the service life of the equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a box-type transformer DC resistance tester, comprising an outer shell, an inner wall of the outer shell is slidably connected with a storage plate, a lower surface of the storage plate is fixedly connected with a sliding rod, a buffer spring 1 is sleeved on the upper side of the outer wall of the sliding rod, one end of the buffer spring 1 is fixedly connected to the lower surface of the storage plate, the lower surface of the buffer spring 1 is fixedly connected to a fixed plate, the outer wall of the fixed plate is fixedly connected to the inside of the outer shell, the bottom of the sliding rod is fixedly connected to a bottom plate, a buffer spring 2 is sleeved on the lower side of the outer wall of the sliding rod, one end of the buffer spring 2 is fixedly connected to the lower surface of the fixed plate, and the other end of the buffer spring 2 is fixedly connected to the upper surface of the bottom plate, a fixing sleeve is fixedly connected to the inside of the outer shell, a spring sheet is slidably connected to the inside of the fixing sleeve, a telescopic rod is fixedly connected to the lower surface of the spring sheet, a buffer spring 3 is sleeved on the outer wall of the telescopic rod, one end of the buffer spring 3 is fixedly connected to the inside of the outer shell, and the other end of the buffer spring 3 is fixedly connected to the lower surface of the spring sheet, and an anti-slip component is arranged at the bottom of the outer shell.

[0006] Furthermore, the anti-skid assembly includes an anti-skid base, and the upper surface of the anti-skid base is fixedly connected to the bottom of the outer shell.

[0007] Furthermore, a rotating shaft is fixedly connected to the outer wall of the outer shell, and a sealing top cover is fixedly connected to the outer wall of the rotating shaft.

[0008] Furthermore, an anti-collision block is fixedly connected to the outer wall of the sealing top cover, a buckle is fixedly connected to the outer wall of the sealing top cover, and an outer wall of the buckle is fixedly connected to the outer wall of the outer shell.

[0009] Furthermore, a ventilation hole is opened inside the outer shell, and a filter is fixedly connected to the inside of the outer shell.

[0010] Furthermore, a ventilation pipe is fixedly connected to the interior of the outer shell, and a filter cover is threadedly connected to the outer wall of the ventilation pipe.

[0011] Furthermore, a fan is fixedly connected to the inner wall of the ventilation duct, and a dust collecting plate is fixedly connected to the inner wall of the ventilation duct.

[0012] Furthermore, a filter plate is fixedly connected to the inside of the dust collecting plate, and the filter plate is arranged inside the ventilation pipe.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, first, when the outer shell of the tester is subjected to external force, the storage plate will slide, and then cooperate with the slide rod, buffer spring 1, fixed plate, bottom plate and buffer spring 2 to perform the first step of buffering, and then cooperate with the spring sheet, fixed sleeve, telescopic rod and buffer spring 3 to further buffer, which solves the problem that the tester is easily affected by external force when being transported or used and causes damage to the internal body, and achieves effective buffering protection for the resistance tester, reduces the external impact on internal components, reduces the probability of equipment damage, and thus extends the service life of the equipment.

[0015] 2. In the utility model, air is first sucked into the outer shell through the fan. In this process, the filter cover, ventilation pipe, dust collecting plate and filter plate are used to filter the air. Then, the ventilation holes and filter screen are used to dissipate heat. Finally, the buckle and the rotating shaft are used for easier use. Good heat dissipation measures are achieved to ensure that the resistance tester operates within the normal operating temperature range and improve the stability and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of the box-type transformer DC resistance tester proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the outer shell of the box-type transformer DC resistance tester proposed by the utility model;

[0018] Figure 3 This is a structural schematic diagram of one side of the fixed sleeve of the box-type transformer DC resistance tester proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the back structure of the outer shell of the box-type transformer DC resistance tester proposed by the utility model;

[0020] Figure 5 The utility model provides a schematic diagram of the internal structure of the ventilation pipe of the box-type transformer DC resistance tester.

[0021] Legend:

[0022] 1. Outer shell; 2. Storage plate; 3. Slide rod; 4. Buffer spring 1; 5. Fixed plate; 6. Bottom plate; 7. Buffer spring 2; 8. Fixed sleeve; 9. Spring sheet; 10. Telescopic rod; 11. Buffer spring 3; 12. Anti-slip base; 13. Rotating shaft; 14. Sealing top cover; 15. Anti-collision block; 16. Ventilation hole; 17. Filter screen; 18. Filter cover; 19. Ventilation duct; 20. Fan; 21. Dust collecting plate; 22. Filter plate; 23. Buckle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a box-type transformer DC resistance tester, comprising an outer shell 1, the inner wall of the outer shell 1 is slidably connected with a storage plate 2, the lower surface of the storage plate 2 is fixedly connected with a slide bar 3, the upper side of the outer wall of the slide bar 3 is sleeved with a buffer spring 4, one end of the buffer spring 4 is fixedly connected to the lower surface of the storage plate 2, the lower surface of the buffer spring 4 is fixedly connected with a fixed plate 5, the outer wall of the fixed plate 5 is fixedly connected to the inside of the outer shell 1, the bottom of the slide bar 3 is fixedly connected with a bottom plate 6, and the lower side of the outer wall of the slide bar 3 is sleeved with a buffer spring 2 7, one end of the buffer spring 2 7 is fixedly connected to the lower surface of the fixed plate 5, the other end of the buffer spring 2 7 is fixedly connected to the upper surface of the bottom plate 6, the interior of the outer shell 1 is fixedly connected with a fixed sleeve 8, the interior of the fixed sleeve 8 is slidably connected with a spring sheet 9, the lower surface of the spring sheet 9 is fixedly connected with a telescopic rod 10, the outer wall of the telescopic rod 10 is provided with a buffer spring 3 11, one end of the buffer spring 3 11 is fixedly connected to the interior of the outer shell 1, the other end of the buffer spring 3 11 is fixedly connected to the lower surface of the spring sheet 9, and the bottom of the outer shell 1 is provided with an anti-slip component;

[0025] Specifically, first, when the outer shell 1 is impacted by external force, the storage plate 2 will slide along the inner wall of the outer shell 1 under the action of the main structure, and will generate a certain pressure on the slide rod 3 and the spring sheet 9. When the slide rod 3 is subjected to such pressure, it will guide the bottom plate 6 to slide at the bottom of the outer shell 1. In this process, the buffer spring 1 4 will shrink between the storage plate 2 and the fixed plate 5. At the same time, the buffer spring 2 7 will also stretch between the fixed plate 5 and the bottom plate 6. The elasticity of the buffer spring 1 4 and the buffer spring 2 7 can disperse and reduce the impact force, thereby protecting the integrity of the outer shell 1 and the internal structure. When the spring sheet 9 is subjected to pressure, it will deform, causing its two ends to slide inside the fixed sleeves 8 on both sides. The sliding will exert pressure on the buffer spring 3 11 to shrink it. The shrinkage of the buffer spring 3 11 will generate thrust, which further reduces the impact of the external force. Finally, the anti-collision block 15 on the outer wall of the sealing top cover 14 also plays an important protective role, which can provide additional protection for the main body above the internal storage plate 2 to prevent the main body from being damaged under the impact of external force.

[0026] Reference Figure 1 , Figure 4 and Figure 5 The anti-skid assembly includes an anti-skid base 12, the upper surface of the anti-skid base 12 is fixedly connected to the bottom of the outer shell 1, the outer wall of the outer shell 1 is fixedly connected to a rotating shaft 13, the outer wall of the rotating shaft 13 is fixedly connected to a sealing top cover 14, the outer wall of the sealing top cover 14 is fixedly connected to an anti-collision block 15, the outer wall of the sealing top cover 14 is fixedly connected to a buckle 23, the outer wall of the buckle 23 is fixedly connected to the outer wall of the outer shell 1, and a ventilation hole 16 is opened inside the outer shell 1, a filter screen 17 is fixedly connected to the inside of the outer shell 1, a ventilation pipe 19 is fixedly connected to the inside of the outer shell 1, a filter cover 18 is threadedly connected to the outer wall of the ventilation pipe 19, a fan 20 is fixedly connected to the inner wall of the ventilation pipe 19, a dust collecting plate 21 is fixedly connected to the inner wall of the ventilation pipe 19, a filter plate 22 is fixedly connected to the inside of the dust collecting plate 21, and the filter plate 22 is arranged inside the ventilation pipe 19;

[0027] Specifically, firstly, the external air is introduced into the equipment through the fan 20 inside the outer shell 1. When passing through the ventilation pipe 19, the filter cover 18 plays a preliminary filtering role. The thread on the inner wall of the filter cover 18 is perfectly meshed with the thread on the outer wall of the ventilation pipe 19, which not only ensures the stable installation of the filter cover 18, but also when cleaning is needed, the user only needs to simply rotate the filter cover 18 to remove it for cleaning, thereby effectively extending the service life of the equipment. Then, the inner wall of the ventilation pipe 19 is also provided with a dust collecting plate 21 and a filter plate 22, so that when the air passes through the ventilation pipe 19, It can be further filtered and purified. The dust collecting plate 21 can effectively capture large dust particles in the air, while the filter plate 22 can filter out finer particles, thereby ensuring that only clean air enters the interior of the device. The air enters the interior of the outer shell 1 to dissipate heat for the electronic components inside the device. Finally, the dissipated air is discharged from the device through the ventilation holes 16 and the filter screen 17. Then, through the cooperation of the buckle 23 and the rotating shaft 13, the sealing top cover 14 can be easily opened and closed, and more convenience and comfort can be felt during use.

[0028] Working principle: When it is necessary to use the box-type transformer DC resistance tester, first, when the outer shell 1 is affected by external force, the storage plate 2 is affected by the main body and slides on the inner wall of the outer shell 1, thereby exerting pressure on the slide bar 3 and the spring sheet 9. When the slide bar 3 is under pressure, it will drive the bottom plate 6 to slide at the bottom of the outer shell 1. In this process, the buffer spring 1 4 will shrink between the storage plate 2 and the fixed plate 5, and at the same time, the buffer spring 2 7 will be stretched between the fixed plate 5 and the bottom plate 6, so as to buffer the external force. When the spring sheet 9 is under pressure, the spring sheet 9 will be deformed, causing the two ends of the spring sheet 9 to slide inside the fixed sleeves 8 on both sides, and at the same time, pressure will be applied to the buffer spring 3 11 to shrink the buffer spring 3 11, and then the thrust generated by the contraction of the buffer spring 3 11 will be used to buffer the external force. Buffering is performed, and finally the anti-collision block 15 on the outer wall of the sealing top cover 14 is cooperated to protect the main body above the internal storage plate 2, thereby achieving the protection effect, and then the fan 20 is started to suck the external air into the outer shell 1 through the ventilation pipe 19. In this process, the filter cover 18 is used for preliminary filtration, and the thread on the inner wall of the filter cover 18 is engaged with the thread on the outer wall of the ventilation pipe 19, so that it can be easily cleaned when needed, and then the dust collecting plate 21 and the filter plate 22 on the inner wall of the ventilation pipe 19 are further filtered. The filtered air dissipates heat to the interior of the outer shell 1 and is finally discharged through the ventilation hole 16 and the filter screen 17, thereby achieving the filtering effect. Finally, the sealing top cover 14 can be opened and closed, and the handle on the top of the sealing top cover 14 can be realized through the cooperation of the buckle 23 and the rotating shaft 13, thereby achieving the effect of convenient use.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A box-type transformer DC resistance tester, comprising an outer shell (1), characterized in that: The inner wall of the outer shell (1) is slidably connected to a storage plate (2), the lower surface of the storage plate (2) is fixedly connected to a slide bar (3), the upper side of the outer wall of the slide bar (3) is sleeved with a buffer spring (4), one end of the buffer spring (4) is fixedly connected to the lower surface of the storage plate (2), the lower surface of the buffer spring (4) is fixedly connected to a fixed plate (5), the outer wall of the fixed plate (5) is fixedly connected to the inside of the outer shell (1), the bottom of the slide bar (3) is fixedly connected to a bottom plate (6), the lower side of the outer wall of the slide bar (3) is sleeved with a buffer spring (7), one end of the buffer spring (7) is fixedly connected to the The lower surface of the fixed plate (5), the other end of the buffer spring 2 (7) is fixedly connected to the upper surface of the bottom plate (6), the interior of the outer shell (1) is fixedly connected with a fixed sleeve (8), the interior of the fixed sleeve (8) is slidably connected with a spring sheet (9), the lower surface of the spring sheet (9) is fixedly connected with a telescopic rod (10), the outer wall of the telescopic rod (10) is sleeved with a buffer spring 3 (11), one end of the buffer spring 3 (11) is fixedly connected to the interior of the outer shell (1), the other end of the buffer spring 3 (11) is fixedly connected to the lower surface of the spring sheet (9), and the bottom of the outer shell (1) is provided with an anti-slip component.

2. The box-type transformer DC resistance tester according to claim 1 is characterized in that: The anti-skid assembly comprises an anti-skid base (12), the upper surface of the anti-skid base (12) being fixedly connected to the bottom of the outer shell (1).

3. The box-type transformer DC resistance tester according to claim 1 is characterized in that: The outer wall of the outer shell (1) is fixedly connected to a rotating shaft (13), and the outer wall of the rotating shaft (13) is fixedly connected to a sealing top cover (14).

4. The box-type transformer DC resistance tester according to claim 3 is characterized in that: The outer wall of the sealing top cover (14) is fixedly connected to an anti-collision block (15), the outer wall of the sealing top cover (14) is fixedly connected to a buckle (23), and the outer wall of the buckle (23) is fixedly connected to the outer wall of the outer shell (1).

5. The box-type transformer DC resistance tester according to claim 1 is characterized in that: A ventilation hole (16) is provided inside the outer shell (1), and a filter screen (17) is fixedly connected to the inside of the outer shell (1).

6. The box-type transformer DC resistance tester according to claim 1, characterized in that: A ventilation pipe (19) is fixedly connected to the interior of the outer shell (1), and a filter cover (18) is threadedly connected to the outer wall of the ventilation pipe (19).

7. The box-type transformer DC resistance tester according to claim 6 is characterized in that: A fan (20) is fixedly connected to the inner wall of the ventilation pipe (19), and a dust collecting plate (21) is fixedly connected to the inner wall of the ventilation pipe (19).

8. The box-type transformer DC resistance tester according to claim 7, characterized in that: A filter plate (22) is fixedly connected to the interior of the dust collecting plate (21), and the filter plate (22) is arranged inside the ventilation pipe (19).

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