Transformer low-voltage side protective cover

Abstract

The utility model relates to a transformer low-voltage side protective cover which comprises a first cylinder body and a second cylinder body, and the first cylinder body is provided with a first slot; the second cylinder body is provided with a second slot; a connecting part is arranged at one end of the first barrel; one end of the second barrel body is rotationally connected with the connecting part; the connecting part is provided with a limiting baffle used for limiting the rotating direction of the second barrel body and the like. Through the arrangement of the included angle adjustable structure between the first barrel body and the second barrel body, the included angle between the first barrel body and the second barrel body can be adjusted according to an actual included angle in different wiring modes (such as wire straight-out wiring, wiring copper plates, wiring lugs and the like), so that the requirements of different devices and environments are met, and the practicability is high. The use flexibility and adaptability are improved, and other types of protection covers do not need to be additionally used.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment protection, and more specifically, to a protective cover for the low-voltage side of a transformer. Background Art

[0002] A transformer is an essential key device in the power system and plays an extremely important role in the conversion and distribution of electric energy; the connection of the low-voltage side of the transformer is usually directly affected by the external environment and is vulnerable to physical damage and environmental factors such as humidity, dust, and external force impact, resulting in unstable operation of the transformer and potential safety hazards; traditional protective covers for the low-voltage side of transformers often only fit one wiring method and the corresponding included angle. If the wiring method of direct wire output, wiring copper plate, and wiring ear is changed, the included angle also changes. If protection is required, other types of protective covers need to be replaced, which is rather troublesome and the scene adaptability is not very high. For example, the protective cover disclosed in the patent publication number CN114678195A has such a problem; therefore, an efficient and adjustable protective cover is proposed to protect the low-voltage side of the transformer to operate safely and stably. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a protective cover for the low-voltage side of a transformer, which realizes diversified protection of the low-voltage side of the transformer through an adjustable angle design and a convenient disassembly method, meeting the requirements of different wiring methods.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: A protective cover for the low-voltage side of a transformer, comprising: a first cylinder body and a second cylinder body; a first slit is provided on the first cylinder body; a second slit is provided on the second cylinder body; a connecting portion is provided at one end of the first cylinder body; one end of the second cylinder body is rotatably connected to the connecting portion; a limiting baffle for limiting the rotation direction of the second cylinder body is provided on the connecting portion; clamping blocks are provided on both inner walls of the connecting portion; first clamping grooves, second clamping grooves, and third clamping grooves for cooperating with the clamping blocks to limit and lock the position of the second cylinder body are provided on both sides of the second cylinder body; the first clamping grooves, second clamping grooves, and third clamping grooves are arranged at equal intervals in a ring shape; the clamping blocks can be received in the corresponding first clamping grooves, second clamping grooves, or third clamping grooves; first disassembly plates and second disassembly plates are symmetrically arranged on both sides of the second slit; both of the first disassembly plates are detachably connected to the second cylinder body; both of the second disassembly plates are detachably connected to the second cylinder body.

[0005] Optionally, when both of the clamping blocks are received in the corresponding first clamping grooves, the included angle between the first cylinder body and the second cylinder body is 180 degrees, so as to be applicable to the wiring method of direct wire output on the low-voltage side of the transformer.

[0006] Optionally, when both of the two clamping blocks are placed in the corresponding second card slots, the included angle between the first cylinder and the second cylinder is 135 degrees, so as to be applicable to the wiring mode where the low-voltage side of the transformer is a wiring copper plate.

[0007] Optionally, when both of the two clamping blocks are placed in the corresponding third card slots, the included angle between the first cylinder and the second cylinder is 90 degrees so as to be applicable to the wiring mode where the low-voltage side of the transformer is a wiring ear.

[0008] Optionally, a temperature measurement hole for installing a temperature measurement device is formed in the connecting portion.

[0009] Optionally, an arc-shaped hole corresponding to the temperature measurement hole is formed in the second cylinder; the arc-shaped hole is communicated with the temperature measurement hole.

[0010] Optionally, at least one through hole for manually measuring the temperature of the low-voltage side of the transformer is formed in the first cylinder.

[0011] Optionally, a first limiting cover is arranged at the other end of the first cylinder; the first limiting cover is detachably connected to the first cylinder; a third slit corresponding to the first slit is formed in the first limiting cover.

[0012] Optionally, a second limiting cover is arranged at the other end of the second cylinder; the second limiting cover is detachably connected to the second cylinder; a fourth slit corresponding to the second slit is formed in the second limiting cover.

[0013] Optionally, the length of the first cylinder is greater than the length of the second cylinder.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. Through the setting of the adjustable structure of the included angle between the first cylinder and the second cylinder, it is realized that in the face of different wiring modes (such as direct wire output wiring, wiring copper plate, wiring ear, etc.), the included angle between the first cylinder and the second cylinder can be adjusted according to the actual included angle, so as to meet the needs of different devices and environments, improve the flexibility and adaptability of use, and there is no need to additionally use other types of protective covers.

[0016] 2. The structural design of the protective cover is convenient for installation and disassembly. The installation process is convenient and fast, and the installation can be firmly achieved without using other additional fixing parts, further increasing the scene adaptability and practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 is a schematic cross-sectional view of the main structure of the present utility model;

[0019] Figure 3 is a schematic structural view of the first cylinder of the present utility model;

[0020] Figure 4 is a schematic structural view of the second cylinder of the present utility model;

[0021] Figure 5 is a schematic side view of the specific structure of the second cylinder of the present utility model;

[0022] Figure 6 is a schematic view of the first embodiment of the present utility model;

[0023] Figure 7 is a schematic view of the second embodiment of the present utility model;

[0024] Figure 8 is a schematic view of the third embodiment of the present utility model.

[0025] In the figure: 1. First cylinder; 11. First slit; 12. Connecting part; 121. Limit baffle; 13. Clamping block; 2. Second cylinder; 21. Second slit; 22. First card slot; 23. Second card slot; 24. Third card slot; 25. First removal plate; 26. Second removal plate; 3. Temperature measurement hole; 4. Arc-shaped hole; 5. Through hole; 6. First limit cover; 61. Third slit; 7. Second limit cover; 71. Fourth slit. Specific embodiments

[0026] To make the objectives, features, and advantages of the present utility model more apparent and understandable, the following provides a detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings. Several embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0028] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature. The terms "vertical", "horizontal", "left", "right", "above", "below" and similar expressions are only for the purpose of illustration, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0029] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0030] The present utility model provides a protective cover for the low-voltage side of a transformer, as Figure 1 shown, comprising: a first cylinder body 1 and a second cylinder body 2; a first slit 11 is provided on the first cylinder body 1; a second slit 21 is provided on the second cylinder body 2; a connecting portion 12 is provided at one end of the first cylinder body 1; one end of the second cylinder body 2 is rotatably connected to the connecting portion 12; a limiting baffle 121 for limiting the rotation direction of the second cylinder body 2 is provided on the connecting portion 12; clamping blocks 13 are provided on both inner walls of the connecting portion 12; first clamping grooves 22, second clamping grooves 23 and third clamping grooves 24 for cooperating with the clamping blocks 13 to limit and lock the position of the second cylinder body 2 are provided on both sides of the second cylinder body 2; the first clamping grooves 22, second clamping grooves 23 and third clamping grooves 24 are arranged at equal intervals in a ring shape; the clamping blocks 13 can be received in the corresponding first clamping grooves 22, second clamping grooves 23 or third clamping grooves 24; first dismounting plates 25 and second dismounting plates 26 are symmetrically arranged on both sides of the second slit 21; both of the first dismounting plates 25 are detachably connected to the second cylinder body 2; both of the second dismounting plates 26 are detachably connected to the second cylinder body 2.

[0031] Specifically, the connection portion 12 on the first cylinder 1 is rotatably connected to the second cylinder 2 to realize the rotation between the first cylinder 1 and the second cylinder 2, and the angle adjustment and fixed locking between the first cylinder 1 and the second cylinder 2 are realized through the cooperation between the block 13 and the first slot 22, the second slot 23 and the third slot 24. The flexible angle adjustment can not only meet different installation requirements, but also ensure that the low-voltage side of the transformer is effectively protected; the limit baffle 121 can effectively limit the rotation angle of the second cylinder 2 to prevent it from exceeding the maximum stroke, resulting in a situation where it cannot be used normally; during the rotation of the second cylinder 2, a part of the second cylinder 2 will be placed in the first cylinder 1. In order to effectively avoid the problem of wear and damage between the second cylinder 2 and the equipment components on the low-voltage side of the transformer, the first disassembly plate 25 and the second disassembly plate 26 can be disassembled according to actual usage conditions, thereby leaving enough space for the equipment components on the low-voltage side of the transformer to avoid damage.

[0032] In another embodiment, two hooks are further provided on one end of the first cylinder 1 close to the second cylinder 2, and the two hooks are symmetrically arranged. During the installation process, the second cylinder 2 can be pried open from the second slit 21, and the baffles on both sides can be pried open and snapped onto the two hooks. Then, the first cylinder 1 can be pried open from the first slit 11 on the first cylinder 1 using an installation tool, thereby driving the second cylinder 2 to be pried open synchronously, thereby achieving the effect of quickly installing the protective cover, without the need for an additional step to pry open the second cylinder 2, resulting in an incomplete closure between the first cylinder 1 and the second cylinder 2, resulting in a gap, resulting in a poor protection effect.

[0033] Furthermore, when the two clamping blocks 13 are both placed in the corresponding first clamping slots 22, the angle between the first cylinder 1 and the second cylinder 2 is 180 degrees, which is suitable for the wiring method in which the low-voltage side of the transformer is a straight-out wiring method.

[0034] In the first embodiment, Figure 5 When the wiring method of the low-voltage side of the transformer is a straight wire outlet, in this method, the angle of the low-voltage side is 180 degrees. By clamping the block 13 of the first cylinder 1 into the corresponding first slot 22 of the second cylinder 2, the angle between the first cylinder 1 and the second cylinder 2 is 180 degrees. The first cylinder 1 and the second cylinder 2 are pried apart from the first slit 11 and the second slit 21 by the installation tool, and the equipment components to be protected on the low-voltage side of the transformer are placed in the first cylinder 1 and the second cylinder 2. Then, the first cylinder 1 and the second cylinder 2 are separated from the installation tool, and the closure is completed by the material toughness of the first cylinder 1 and the second cylinder 2. The installation and setting of the protective cover can be completed without the need for additional installation parts or other connecting parts. It can be quickly locked and released, which improves the efficiency of daily maintenance and overhaul and reduces the complexity of personnel operation.

[0035] Furthermore, when the two clamping blocks 13 are both placed in the corresponding second clamping grooves 23, the angle between the first cylinder 1 and the second cylinder 2 is 135 degrees, which is suitable for the wiring method in which the low-voltage side of the transformer is a wiring copper plate.

[0036] In the second embodiment, Figure 6 When the wiring method of the low-voltage side of the transformer is a wiring copper plate, in this method, the angle of the low-voltage side is 135 degrees. By clamping the block 13 of the first cylinder 1 into the second clamping groove 23 corresponding to the second cylinder 2, the angle between the first cylinder 1 and the second cylinder 2 is 135 degrees, and the first disassembly plate 25 is removed from the second cylinder 2 to avoid the first disassembly plate 25 being placed in the first cylinder 1 and contacting with the equipment components on the low-voltage side of the transformer during the installation process, thereby leaving enough space; the first cylinder 1 and the second cylinder 2 are separated from the first slit 11 and the second slit 21 by the installation tool, and the equipment components to be protected on the low-voltage side of the transformer are placed in the first cylinder 1 and the second cylinder 2, and then the first cylinder 1 and the second cylinder 2 are separated from the installation tool, and the closure is completed by the material toughness of the first cylinder 1 and the second cylinder 2 themselves. The installation and setting of the protective cover can be completed without the need for additional installation parts or other connecting parts, and can be quickly locked and released, thereby improving the efficiency of daily maintenance and overhaul and reducing the complexity of personnel operation.

[0037] Furthermore, when the two clamping blocks 13 are both placed in the corresponding third clamping grooves 24, the angle between the first cylinder 1 and the second cylinder 2 is 90 degrees to be suitable for the wiring method in which the low-voltage side of the transformer is a wiring ear.

[0038] In the third embodiment, Figure 7 When the wiring mode of the low-voltage side of the transformer is a wiring ear, in this mode, the angle of the low-voltage side is 90 degrees. By clamping the block 13 of the first cylinder 1 and the second clamping groove 23 corresponding to the second cylinder 2, the angle between the first cylinder 1 and the second cylinder 2 is 135 degrees. The first disassembly plate 25 and the second disassembly plate 26 are removed from the second cylinder 2 to avoid the first disassembly plate 25 being placed in the first cylinder 1 and contacting with the equipment components on the low-voltage side of the transformer during the installation process, thereby leaving enough space; the first cylinder 1 and the second cylinder 2 are separated from the first slit 11 and the second slit 21 by the installation tool, and the equipment components to be protected on the low-voltage side of the transformer are placed in the first cylinder 1 and the second cylinder 2, and then the first cylinder 1 and the second cylinder 2 are separated from the installation tool, and the closure is completed by the material toughness of the first cylinder 1 and the second cylinder 2. The installation and setting of the protective cover can be completed without the need for additional installation parts or other connecting parts. It can be quickly locked and released, which improves the efficiency of daily maintenance and overhaul and reduces the complexity of personnel operation.

[0039] Further, a temperature measuring hole 3 for installing a temperature measuring device is formed in the connecting portion 12.

[0040] Specifically, the temperature measuring hole 3 can facilitate the installation of the temperature measuring device, enabling the operator to obtain the data of the working state of the transformer in real time, which helps to promptly discover potential problems and ensure the safe operation of the equipment.

[0041] Further, an arc-shaped hole 4 corresponding to the temperature measuring hole 3 is formed in the second cylinder body 2; the arc-shaped hole 4 is communicated with the temperature measuring hole 3.

[0042] Specifically, during the process of rotating the second cylinder body 2, the provided arc-shaped hole 4 will not collide with the probe part of the temperature measuring device, causing damage.

[0043] Further, at least one through hole 5 for manually measuring the temperature of the low-voltage side of the transformer is formed in the first cylinder body 1.

[0044] Specifically, the through hole 5 formed in the first cylinder body 1 allows the operator to conveniently use a thermometer to manually measure the temperature of the low-voltage side of the transformer. This convenient design reduces the need for equipment disassembly during the temperature measurement process and improves work efficiency; through manual temperature measurement, the temperature change of the low-voltage side of the transformer can be monitored in a timely manner. Once the temperature is too high, the operator can immediately take corresponding measures, such as reducing the load or performing equipment maintenance, thereby preventing failures and damages and ensuring the safety of equipment operation.

[0045] Further, a first limiting cover 6 is arranged at the other end of the first cylinder body 1; the first limiting cover 6 is detachably connected to the first cylinder body 1; a third slit 61 corresponding to the first slit 11 is formed in the first limiting cover 6.

[0046] Specifically, the first limiting cover 6 is made of silica gel material, which is used to reduce the wear of the equipment components on the low-voltage side of the transformer and further extend the service life of the equipment components on the low-voltage side of the transformer; the outer diameter of the first limiting cover 6 gradually decreases from the inside to the outside, so as to prevent the overall limiting protective cover from being displaced due to environmental factors such as vibration, resulting in poor protection effect.

[0047] Further, a second limiting cover 7 is arranged at the other end of the second cylinder body 2; the second limiting cover 7 is detachably connected to the second cylinder body 2; a fourth slit 71 corresponding to the second slit 21 is formed in the second limiting cover 7.

[0048] Specifically, the second limiting cover 7 is made of silica gel, which is used to reduce the wear of the equipment components on the low-voltage side of the transformer and further extend the service life of the equipment components on the low-voltage side of the transformer; the outer diameter of the second limiting cover 7 gradually decreases from inside to outside, so as to prevent the overall limiting protective cover from being displaced due to environmental factors such as vibration, resulting in poor protection effect.

[0049] Furthermore, the length of the first cylinder 1 is greater than the length of the second cylinder 2.

[0050] Specifically, the length of the first cylinder 1 being greater than that of the second cylinder 2 helps to provide a more comprehensive protection area; through the longer first cylinder 1, the low-voltage side of the transformer can be better covered, preventing the influence of external factors (such as dust, moisture, mechanical shock, etc.) on the wiring and internal components of the transformer, thereby enhancing the overall protection effect of the protective cover.

[0051] For the protective cover of the low-voltage side of the transformer of the present utility model, through the setting of the angle-adjustable structure between the first cylinder 1 and the second cylinder 2, it is realized that in the face of different wiring methods (such as direct wire connection, wiring copper plate, wiring ear, etc.), the angle between the first cylinder 1 and the second cylinder 2 can be adjusted according to the actual angle, so as to meet the needs of different equipment and environments, improve the flexibility and adaptability of use, and there is no need to additionally use other types of protective covers.

[0052] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as the protection scope of the present utility model.

Claims

1. A protective cover for the low-voltage side of a transformer, characterized in that, Comprising: A first cylinder body and a second cylinder body; A first slit is provided on the first cylinder body; a second slit is provided on the second cylinder body; One end of the first cylinder body is provided with a connecting portion; one end of the second cylinder body is rotatably connected to the connecting portion; a limiting baffle for limiting the rotation direction of the second cylinder body is provided on the connecting portion; Clamping blocks are provided on both inner walls of the two sides of the connecting portion; first clamping grooves, second clamping grooves and third clamping grooves for cooperating with the clamping blocks to limit and lock the position of the second cylinder body are formed on both sides of the second cylinder body; the first clamping grooves, the second clamping grooves and the third clamping grooves are arranged at equal intervals in a ring shape; the clamping blocks can be received in the corresponding first clamping grooves, second clamping grooves or third clamping grooves; First disassembly plates and second disassembly plates are symmetrically arranged on both sides of the second slit; Both of the two first disassembly plates are detachably connected to the second cylinder body; both of the two second disassembly plates are detachably connected to the second cylinder body.

2. The low-voltage side protective cover of a transformer according to claim 1, characterized in that When both of the two clamping blocks are received in the corresponding first clamping grooves, the included angle between the first cylinder body and the second cylinder body is 180 degrees, so as to be applicable to the wiring mode in which the low-voltage side of the transformer is directly led out by a wire.

3. A low-voltage side protective cover of a transformer according to claim 1, characterized in that When both of the two clamping blocks are received in the corresponding second clamping grooves, the included angle between the first cylinder body and the second cylinder body is 135 degrees, so as to be applicable to the wiring mode in which the low-voltage side of the transformer is a wiring copper plate.

4. A low-voltage side protective cover of a transformer according to claim 1, characterized in that, When both of the two clamping blocks are received in the corresponding third clamping grooves, the included angle between the first cylinder body and the second cylinder body is 90 degrees so as to be applicable to the wiring mode in which the low-voltage side of the transformer is a wiring ear.

5. A transformer low-voltage side protective cover according to claim 1, characterized in that, A temperature measuring hole for installing a temperature measuring device is formed on the connecting portion.

6. The low-voltage side protective cover of a transformer according to claim 5, characterized in that An arc-shaped hole corresponding to the temperature measuring hole is formed on the second cylinder body; the arc-shaped hole is communicated with the temperature measuring hole.

7. A low-voltage side protective cover of a transformer according to claim 1, characterized in that, At least one through hole for manually measuring the temperature of the low-voltage side of the transformer is formed on the first cylinder body.

8. The low-voltage side protective cover of a transformer according to claim 1, characterized in that, A first limiting cover is provided at the other end of the first cylinder body; the first limiting cover is detachably connected to the first cylinder body; a third slit corresponding to the first slit is formed on the first limiting cover.

9. The low-voltage side protective cover of a transformer according to claim 1, wherein A second limiting cover is provided at the other end of the second cylinder body; the second limiting cover is detachably connected to the second cylinder body; a fourth slit corresponding to the second slit is formed on the second limiting cover.

10. A low-voltage side protective cover of a transformer according to claim 1, characterized in that, The length of the first cylinder body is greater than the length of the second cylinder body.

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