Safety type transformer shell bolt

By employing anti-loosening components and internal threaded connections between screws and anti-loosening parts on the transformer casing, along with a slider limiting structure, the problem of screw loosening and falling off was solved, thus ensuring the safety and stability of the transformer.

CN223549567UActive Publication Date: 2025-11-14CHONGQING HUAWANLUN ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202520121071.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-11-14
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

The screws and nuts on the existing transformer casing are prone to loosening and falling off after being connected for a long time. This can cause the screws or nuts to roll down to the vicinity of the transformer, potentially causing a malfunction.

Method used

An anti-loosening component is used instead of a nut and screw connection. The anti-loosening component is connected to the screw through an internal thread, which increases the friction and reduces the contact force through a cavity. At the same time, the slider moves along the slide groove to adjust the height to limit and prevent it from falling off.

Benefits of technology

It effectively prevents the anti-detachment parts and screws from loosening and falling off, avoiding them from rolling down to the vicinity of the transformer, and ensuring the safe and stable operation of the transformer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a safety type transformer shell bolt which comprises a shell part A and a shell part B. The safety type transformer shell bolt is characterized in that at least one anti-falling part is installed on the shell part A, all the anti-falling parts are located on the inner side of the shell part B, and the shell part B is connected with all the anti-falling parts through at least one screw; the screws penetrate through the outer shell piece B from outside to inside and then are in one-to-one corresponding threaded connection with the anti-disengaging pieces. The utility model has the beneficial effects that the anti-drop piece is adopted to replace a nut to be connected with a screw, so that the shell piece A is tightly attached to the shell piece B; when the anti-disengaging piece and the screw are loosened and disengaged, the anti-disengaging piece can disengage on the inner side of the outer shell piece B, the screw can disengage on the outer shell piece B, the outer shell piece B can prevent the screw from rolling to the position near the transformer, meanwhile, the anti-disengaging piece is connected with the outer shell piece A, the anti-disengaging piece is prevented from rolling to the position near the transformer, and therefore the transformer is prevented from breaking down.
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Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a safety transformer housing bolt. Background Technology

[0002] With the increasing demand for electricity in society, the power industry has experienced rapid development, resulting in a significant increase in the number of transformers built, which are also widely distributed. Many transformers are located in open-air, densely populated environments. To ensure the normal operation of the transformers and the safety of people, transformer casings are usually built around them to provide protection against rain, dust, and electric shock.

[0003] Modern transformer casings are typically assembled using screws and nuts. However, these screws and nuts can loosen over time, and if not intervened in time, they may fall off. Once detached, they can roll near the transformer, potentially causing it to malfunction. Utility Model Content

[0004] The purpose of this invention is to provide a safe transformer housing bolt that can prevent screws or nuts from falling off and rolling near the transformer, thereby preventing transformer failure.

[0005] The safety transformer housing bolts include housing component A and housing component B. The key feature is that at least one anti-detachment component is installed on housing component A, all anti-detachment components are located inside housing component B, and housing component B is connected to all anti-detachment components by at least one screw.

[0006] Each screw passes through the outer casing B from the outside in and is threadedly connected to the anti-loosening component.

[0007] The safety transformer housing bolts use anti-loosening parts instead of nuts and screws for connection, so that housing part A and housing part B fit tightly together.

[0008] When the anti-detachment component and the screw loosen and fall off, the anti-detachment component will fall inside the outer casing B, and the screw will fall off the outer casing B. The outer casing B will prevent the screw from rolling down to the vicinity of the transformer. At the same time, the anti-detachment component is connected to the outer casing A, which also prevents the anti-detachment component from rolling down to the vicinity of the transformer, thereby preventing the transformer from malfunctioning.

[0009] Furthermore, the anti-detachment component has a groove on the side facing the outer casing B, and a screw through hole is provided at the bottom of the groove, in which an internally threaded screw is fitted.

[0010] The anti-loosening component is connected to the screw by the above structure, which increases the friction between the anti-loosening component and the screw, thereby preventing the anti-loosening component from loosening and falling off.

[0011] Furthermore, the anti-detachment component is provided with a cavity, and the screw extends into the cavity after passing through the screw through hole.

[0012] The cavity reduces the contact force between the anti-loosening component and the screw, thus preventing the anti-loosening component from loosening and falling off.

[0013] Furthermore, each of the anti-detachment components is provided with a slider, which is integrally formed with the anti-detachment component;

[0014] The outer casing A has a sliding groove, and all the sliders extend into the sliding groove and fit into it.

[0015] The anti-detachment component moves along the slide groove via a slider, thereby freely adjusting the installation height. At the same time, the slide groove can limit the anti-detachment component, thus preventing it from rolling down to the vicinity of the transformer and preventing transformer failure.

[0016] Furthermore, the outer casing A is a profile, and the profile has the groove.

[0017] Furthermore, the outer casing A is the transformer outer casing frame, and the outer casing B is the transformer outer casing;

[0018] Alternatively, the outer casing A may be a transformer housing, and the outer casing B may be a transformer housing frame;

[0019] Alternatively, both housing component A and housing component B may be transformer housings.

[0020] Furthermore, the anti-detachment components are installed in grooves on both sides of the transformer housing frame, and the anti-detachment components on both sides are respectively connected to the independent transformer housing by screws.

[0021] Furthermore, the transformer housing frame is provided with a sliding block with a groove. After the slider extends out of the groove, its two ends are respectively connected to an anti-detachment component. The anti-detachment components at both ends are respectively connected to the independent transformer housing by screws.

[0022] Furthermore, the transformer housing frame is provided with a sliding block with a groove. After the sliding block extends out of the groove, it is connected to an anti-detachment component. One end of the anti-detachment component is connected to the second transformer housing via a pin, and the other end of the anti-detachment component is connected to the first transformer housing via a screw. After the screw passes through the first transformer housing, it is threadedly connected to the anti-detachment component and the pin in sequence.

[0023] Furthermore, all of the aforementioned anti-detachment components are welded to the outer casing A.

[0024] The anti-detachment component is firmly welded to the outer casing A to prevent it from rolling down to the vicinity of the transformer, thereby preventing transformer failure.

[0025] Beneficial effects: 1. The safety transformer housing bolts use anti-loosening parts instead of nuts and screws for connection, so that housing part A and housing part B fit tightly together; the anti-loosening parts are connected to the screws through internal threads, which increases the friction between the anti-loosening parts and the screws. At the same time, the cavity can reduce the contact force between the anti-loosening parts and the screws, thereby preventing the anti-loosening parts and screws from loosening and falling off.

[0026] 2. The anti-detachment component moves along the slide groove via a slider, thereby freely adjusting the installation height. At the same time, the slide groove can limit the anti-detachment component, thereby preventing the anti-detachment component from rolling down to the vicinity of the transformer and preventing transformer failure.

[0027] 3. The anti-detachment component is firmly welded to the outer casing A to prevent the anti-detachment component from rolling down to the vicinity of the transformer, thereby preventing transformer failure. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0029] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of Embodiment 4 of this utility model. Detailed Implementation

[0032] The specific embodiments and working principle of this utility model will be further described in detail below with reference to the accompanying drawings.

[0033] Example 1:

[0034] like Figure 1 As shown, the safety transformer housing bolt includes a transformer housing frame 2 and a transformer housing 3. The transformer housing frame 2 is equipped with an anti-detachment component 1, which is located inside the transformer housing 3. The transformer housing 3 is connected to the anti-detachment component 1 by screws 4.

[0035] The anti-detachment component 1 has a groove 13, the cross-section of which is an isosceles trapezoid, and the bottom of the groove 13 has a screw through hole; the anti-detachment component 1 also has a cavity 11.

[0036] The screw 4 passes through the transformer housing 3 and the screw hole from the outside to the inside, and then extends into the cavity 11. The screw hole is provided with an internal thread to fit the screw 4.

[0037] The anti-detachment component 1 is provided with a slider 12, which is integrally formed with the anti-detachment component 1, and the cross-section of the slider 12 is "T" shaped, with its vertical arm facing the anti-detachment component 1.

[0038] The transformer housing frame 2 has a groove 21, the inner length of which is greater than the opening length.

[0039] The horizontal arm of the slider 12 extends into the groove 21 and engages with the groove 21.

[0040] Example 2:

[0041] like Figure 2 As shown, the safety transformer housing bolt includes a transformer housing frame 2 and transformer housing shells 3 located at both ends of the transformer housing frame 2; each end of the transformer housing frame 2 is equipped with an anti-detachment component 1, the two anti-detachment components 1 are located inside the two transformer housing shells 3 respectively, and the two transformer housing shells 3 are connected to the two anti-detachment components 1 one-to-one by screws 4;

[0042] Each of the anti-detachment components 1 has a groove 13, the cross-section of which is an isosceles trapezoid, and the bottom of the groove 13 has a screw through hole; the anti-detachment component 1 is also provided with a cavity 11.

[0043] Each screw 4 passes through the transformer housing 3 from the outside to the inside, through the screw hole, and then into the cavity 11. The screw hole is provided with an internal thread to fit the screw 4.

[0044] Each of the anti-detachment components 1 is provided with a slider 12, which is integrally formed with the anti-detachment component 1, and the cross-section of the slider 12 is "T" shaped, with its vertical arm facing the anti-detachment component 1.

[0045] The transformer housing frame 2 has grooves 21 at both ends, and the inner cavity length of each groove 21 is greater than the opening length of the groove 21.

[0046] The horizontal arms of the two sliders 12 extend into the two slide grooves 21 one by one, and respectively fit into the two slide grooves 21.

[0047] Example 3:

[0048] like Figure 3 As shown, the safety transformer housing bolts include a transformer housing frame 2 and transformer housing shells 3 located at both ends of the transformer housing frame 2; the transformer housing frame 2 is equipped with an anti-detachment component 1, and both transformer housing shells 3 are threadedly connected to the anti-detachment component 1 by bolts 4.

[0049] The anti-detachment component 1 has two grooves 13, the cross-section of the two grooves 13 is an isosceles trapezoid, the bottom of each groove 13 has a screw through hole, and the anti-detachment component 1 is also provided with a cavity 11.

[0050] The two screws 4 pass through the first transformer housing 3 and screw holes one by one from the outside to the inside, and then extend into the cavity 11. Each screw hole is provided with an internal thread, and the screws 4 are fitted in a corresponding manner.

[0051] The anti-detachment component 1 is provided with a slider 12, which is integrally formed with the anti-detachment component 1; and the cross-section of the slider 12 is "T" shaped, with its vertical arm facing the anti-detachment component 1.

[0052] The transformer housing frame 2 has a groove 21, and the inner length of the groove 21 is greater than the opening length of the groove 21.

[0053] The slider 12 extends into the groove 21 and fits into the groove 21.

[0054] Example 4:

[0055] like Figure 4 As shown, the safety transformer housing bolt includes a transformer housing frame 2 and a first transformer housing 3a and a second transformer housing 3b located at both ends of the transformer housing frame 2. The transformer housing frame 2 is equipped with an anti-detachment component 1. One end of the anti-detachment component 1 is connected to the second transformer housing 3b via a pin 5, and the other end of the anti-detachment component 1 is connected to the first transformer housing 3a via a bolt 4. After the bolt 4 passes through the first transformer housing 3b, it is threadedly connected to the anti-detachment component 1 and the pin 5 in sequence.

[0056] The anti-detachment component 1 has two grooves 13, and the cross-section of the two grooves 13 is an isosceles trapezoid. The groove 13 facing the first transformer housing 3a has a screw through hole at its bottom, and the groove 13 facing the second transformer housing 3b has a pin through hole at its bottom. The anti-detachment component 1 is also provided with a cavity 11.

[0057] One end of the pin 5 passes through the second transformer housing 3b and the pin through hole from the outside to the inside, and then extends into the cavity 11. One end of the pin 5 is provided with a screw mounting hole.

[0058] The screw 4 passes through the first transformer housing 3a and the screw through hole from the outside to the inside, then extends into the cavity 11 and passes through the screw mounting hole; both the screw through hole and the screw mounting hole are provided with internal threads to fit the screw 4.

[0059] The anti-detachment component 1 is provided with a slider 12, which is integrally formed with the anti-detachment component 1; the transformer housing frame 2 has a groove 21, and the slider 12 extends into the groove 21 and fits into the groove 21.

Claims

1. A safety-type transformer housing bolt, comprising housing component A and housing component B, characterized in that, At least one anti-detachment component (1) is installed on the outer shell A. All anti-detachment components (1) are located inside the outer shell B, and the outer shell B is connected to all anti-detachment components (1) by at least one screw (4). Each screw (4) passes through the outer casing B from the outside in and is threadedly connected to the anti-loosening component (1) one by one.

2. The safety transformer housing bolt according to claim 1, characterized in that, The anti-detachment component (1) has a groove (13) on the side facing the outer shell component B. The bottom of the groove (13) has a screw through hole, and the screw (4) is provided in the screw through hole with an internal thread.

3. The safety transformer housing bolt according to claim 2, characterized in that, The anti-detachment component (1) is provided with a cavity (11), and the screw (4) extends into the cavity (11) after passing through the screw through hole.

4. The safety transformer housing bolt according to claim 1, characterized in that, Each of the anti-detachment components (1) is provided with a slider (12), which is integrally formed with the anti-detachment component (1); The outer casing A has a groove (21) on it, and all the sliders (12) extend into the groove (21) and fit into the groove (21).

5. The safety transformer housing bolt according to claim 4, characterized in that, The outer casing A is a profile, and the profile has the groove (21).

6. The safety transformer housing bolt according to claim 1, characterized in that, The outer casing A is the transformer outer casing frame (2), and the outer casing B is the transformer outer casing (3); Alternatively, the outer casing A may be a transformer housing (3), and the outer casing B may be a transformer housing frame (2); Alternatively, both housing A and housing B can be transformer housings (3).

7. The safety transformer housing bolt according to claim 6, characterized in that, The transformer housing frame (2) has grooves on both sides for installing the anti-detachment parts (1), and the anti-detachment parts (1) on both sides are connected to the independent transformer housing (3) by screws (4).

8. The safety transformer housing bolt according to claim 6, characterized in that, The transformer housing frame (2) is provided with a slide groove (21) to accommodate a slider (12). After the slider (12) extends out of the slide groove (21), its two ends are respectively connected to an anti-detachment component (1). The anti-detachment components (1) at both ends are respectively connected to the independent transformer housing (3) by screws (4).

9. The safety transformer housing bolt according to claim 6, characterized in that, The transformer housing frame (2) is provided with a groove (21) for mounting a slider (12). The slider (12) extends out of the groove (21) and is connected to an anti-detachment component (1). One end of the anti-detachment component (1) is connected to the second transformer housing (3b) via a pin (5), and the other end of the anti-detachment component (1) is connected to the first transformer housing (3a) via a screw (4). The screw (4) passes through the first transformer housing (3a) and is threadedly connected to the anti-detachment component (1) and the pin (5) in sequence.

10. The safety transformer housing bolt according to claim 1, characterized in that, All of the aforementioned anti-detachment components (1) are welded onto the outer casing A.