Epoxy sleeve protective sleeve

Abstract

The utility model relates to the technical field of epoxy sleeve protection, and provides an epoxy sleeve protection sleeve, which comprises an annular main body part, a protection main body of a sawtooth-shaped structure is formed in the circumferential direction of the main body part, and the protection main body extends in the axial direction from the main body part and is gradually folded to form a conical barrel-shaped structure. Through the arrangement of the main body part and the protection main body, when the protection sleeve is inserted into the switch cabinet cabin, the epoxy sleeve can be isolated from the cabin opening, so that the epoxy sleeve is prevented from being scratched in the insertion process.

Description

Technical Field

[0001] The utility model relates to the technical field of epoxy bushing protection, in particular to an epoxy bushing protective sleeve. Background Art

[0002] During the installation of the epoxy bushing of the pluggable dry-type GIS terminal into the switchgear cabin body, there is no protection measure on the surface of the bushing. In the relevant acceptance standards, it is necessary to accept the scratches on the surface of the epoxy bushing, and the scratches may damage the surface insulation layer of the epoxy bushing, resulting in a reduction in electrical insulation performance. In high-voltage equipment such as GIS, good electrical insulation is a key factor to ensure the safe operation of the equipment. Scratches may increase the risk of arc discharge or voltage breakdown. During actual installation, the epoxy bushing touches the inner wall of the hatch, resulting in scratches on the surface of the epoxy bushing. Summary of the Utility Model

[0003] The utility model provides an epoxy bushing protective sleeve to solve the defect that it is difficult to protect the epoxy bushing in the prior art and realize the effective protection of the epoxy bushing.

[0004] The utility model provides an epoxy bushing protective sleeve, including: a ring-shaped main body; a protective main body with a serrated structure is formed circumferentially on the main body, and the protective main body extends axially from the main body and gradually converges to form a conical barrel structure.

[0005] According to the epoxy bushing protective sleeve provided by the utility model, a notch is formed on the main body so that the main body is in an open-ring structure.

[0006] According to the epoxy bushing protective sleeve provided by the utility model, the notch is located between two adjacent serrations.

[0007] According to the epoxy bushing protective sleeve provided by the utility model, a plurality of reinforcing parts are further arranged on the circumference of the main body, and the plurality of reinforcing parts are arranged at intervals circumferentially.

[0008] According to the epoxy bushing protective sleeve provided by the utility model, the reinforcing part extends vertically upward from the bottom of the main body to form a columnar reinforcing part.

[0009] According to the epoxy bushing protective sleeve provided by the utility model, the lowest point of the protective main body is lower than the top edge of the main body.

[0010] According to the epoxy bushing protective sleeve provided by the utility model, the protective main body bulges outwards gradually during the extension process so that the protective main body protrudes outwards from the outer wall surface of the main body.

[0011] According to the epoxy bushing protective sleeve provided by the present utility model, the inner wall surface of the protective main body and the inner wall surface of the main body part form a smooth fitting surface, and the fitting surface is used for fitting with the outer wall surface of the epoxy bushing.

[0012] According to the epoxy bushing protective sleeve provided by the present utility model, an edge retaining ring is provided around the bottom of the main body part.

[0013] According to the epoxy bushing protective sleeve provided by the present utility model, the main body part and the protective main body are integrally formed, and both the main body part and the protective main body are hard plastic parts.

[0014] A kind of epoxy bushing protective sleeve provided by the present utility model, through the settings of the main body part and the protective main body, enables the epoxy bushing to be isolated from the hatch during the process of inserting the protective sleeve into the switchgear compartment, thereby preventing the epoxy bushing from being scratched during the insertion process. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the epoxy bushing protective sleeve provided by the present utility model.

[0017] Reference Signs:

[0018] 1. Main body part; 11. Notch; 12. Top edge; 2. Protective main body; 3. Edge retaining ring; 4. Reinforcing part. Detailed Embodiments

[0019] To make the purpose, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model with reference to the drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0020] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, 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. Therefore, it should not be construed as a limitation to the embodiments of the present utility model.

[0021] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should 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. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0022] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0023] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0024] The plug-in type dry GIS terminal needs to be inserted into the switchgear cabinet. That is, usually there are holes on the switchgear cabinet. The plug-in type dry GIS terminal is inserted into the switchgear cabinet through the holes, and the end of the plug-in type dry GIS terminal is located inside the compartment of the switchgear cabinet. Then, the terminal is fixed on the switchgear cabinet through fixing devices such as bolts. During the installation process, it is inevitable that the epoxy bushing will come into contact with the hole opening, resulting in scratches on the surface of the epoxy bushing. The surface scratches may damage the surface insulation layer of the epoxy bushing, leading to a reduction in electrical insulation performance. In high-voltage equipment such as GIS, good electrical insulation is a key factor to ensure the safe operation of the equipment. The scratches may increase the risk of arc discharge or voltage breakdown. Moreover, the scratches may damage its protective layer, making it more vulnerable to chemical substances or environmental moisture erosion. This may cause the bushing to age and damage faster, thus affecting the long-term stability of the equipment. For the above reasons, it is usually difficult to pass the acceptance inspection when scratches appear.

[0025] In the related art, it is only achieved by the staff paying attention to wall collisions during installation. This increases the assembly difficulty and it is difficult to effectively ensure that the epoxy bushing is not scratched.

[0026] Aiming at the problems in the related art, such as Figure 1 As shown, this embodiment provides an epoxy bushing protective sleeve, including an annular main body part 1; a protective main body 2 with a serrated structure is formed circumferentially on the main body part 1, and the protective main body 2 extends axially from the main body part 1 and gradually converges to form a cone-shaped structure. When the epoxy bushing passes through the switchgear cabinet, it is necessary to prevent it from colliding with the inner wall of the hole opening. In this embodiment, by installing the entire main body part 1 and the protective main body 2 at the hatch position of the switchgear cabinet, it is possible to avoid collision with the outer wall surface of the epoxy bushing during installation, thus effectively avoiding the situation that the epoxy bushing is prone to scratches during installation.

[0027] It can be understood that the protective main body 2 and the main body part 1 jointly isolate the epoxy bushing and the hatch on the switchgear cabinet, thus preventing collision during installation. The protective main body 2 is set to a serrated structure, which can effectively reduce the contact area with the outer wall surface of the epoxy bushing, thus facilitating the insertion of the epoxy bushing. And the overall design is a cone-shaped structure, thus having the functions of guiding and fitting.

[0028] Specifically, the cone-shaped protective main body 2 forms a guiding space in the middle, so that after the epoxy bushing is inserted, it can be inserted along the guiding space, realizing the insertion guidance of the epoxy bushing and facilitating quick plugging.

[0029] In a specific embodiment, the main body portion 1 and the protection main body 2 are integrally formed, and both the main body portion 1 and the protection main body 2 are made of hard plastic parts. The hard plastic parts make the overall structure easy to form, can play a certain supporting role, facilitate the overall guiding, and can achieve a better isolation effect. Specifically, the protective sleeve can be one of PA (polyamide), PC (polycarbonate) or ABS (acrylonitrile-butadiene-styrene copolymer).

[0030] In specific applications, some epoxy sleeves are columnar structures with a conical outer shape. At this time, the protective sleeve can be first installed on the epoxy sleeve, and then the epoxy sleeve is inserted into the switch cabinet. During the insertion process, the epoxy sleeve moves relative to the protective sleeve. That is, the protective sleeve is located at the opening of the switch cabinet to achieve the isolation between the epoxy sleeve and the edge of the opening, preventing the epoxy sleeve from being scratched during the movement.

[0031] According to an embodiment provided by the present invention, an edge retaining ring 3 is provided around the bottom of the main body portion 1. The edge retaining ring 3 protrudes outwards to facilitate the limiting function and improve the stability of the protective sleeve.

[0032] For example, there are two installation methods for the protective sleeve. One is to directly install it on the opening of the switch cabinet, and the other is to directly install it on the epoxy sleeve. In this embodiment, through the setting of the edge retaining ring 3, during the insertion process of the epoxy sleeve, the stability of the protective sleeve can be ensured through the action of the edge retaining ring 3, which is beneficial to the rapid insertion of the epoxy sleeve. Taking the installation on the epoxy sleeve as an example, the protective sleeve is installed on the epoxy sleeve so that the reduced end of the protective sleeve is located at the end of the epoxy sleeve. During the insertion process of the epoxy sleeve, the epoxy sleeve can move relative to the protective sleeve through the contact between the edge retaining ring 3 and the outer wall surface of the hole on the switch cabinet, thereby completing the insertion of the epoxy sleeve.

[0033] According to an embodiment provided by the present invention, a notch 11 is formed on the main body portion 1 so that the main body portion 1 is in an open-ring structure. The open-ring structure can facilitate the installation and removal of the protective sleeve.

[0034] It can be understood that the protective sleeve can be retained in the switch cabinet body, and of course, it can also be removed and reused as a tool. In this embodiment, the open-ring structure enables the overall protective sleeve to undergo a certain elastic deformation, and it can deform to a certain extent to be snapped into the epoxy sleeve, or the notch 11 expands under external force and is removed from the epoxy sleeve. The open-ring structure makes it more convenient to remove and is beneficial for repeated use.

[0035] Specifically, the notch 11 is located between two adjacent sawteeth. It is more convenient to open the notch 11 in the gap between the two sawteeth, which can facilitate the opening of the notch 11.

[0036] For example, the notch 11 is in the form of a cut-off opening, so that the main body 1 is formed into an open-ring structure, and the notch 11 has a certain width. During installation and disassembly, the width of the notch 11 is enlarged by an external force, so as to realize the disassembly and installation of the protective sleeve.

[0037] In some embodiments, a plurality of reinforcing parts 4 are further provided on the circumference of the main body 1, and the plurality of reinforcing parts 4 are arranged at intervals in the circumferential direction. The protective sleeve will be subjected to a certain acting force during the process of the epoxy sleeve passing through. In this embodiment, through the arrangement of the reinforcing parts 4, the overall structural strength is higher, and the reliability and service life of the protective sleeve are longer.

[0038] When specifically arranged, the reinforcing part 4 extends vertically upward from the bottom of the main body 1 to form a columnar reinforcing part 4. The vertical extension makes the axial strength of the main body 1 higher, can provide a greater bearing capacity, and makes the service life of the protective sleeve longer.

[0039] In some embodiments provided by the present utility model, the lowest point of the protection main body 2 is lower than the top edge 12 of the main body 1. That is, the bottom of the protection main body 2 is located on the outer wall surface of the main body 1, so that the structural strength of the extended protection main force is higher, and the bearing capacity and reliability are stronger.

[0040] It can be understood that the hole of the switch cabinet can be opened in the vertical direction or in the horizontal direction. When it is opened in the horizontal direction, the protective sleeve needs to have a certain supporting force after being located in the hole. In this embodiment, by arranging the protection main body 2 on the main body 1, the overall structural strength is higher.

[0041] In a specific embodiment, the protection main body 2 bulges outwards gradually during the extension process, so that the protection main body 2 protrudes outwards from the outer wall surface of the main body 1. That is, the thickness of the main body part of the protection main body 2 is greater than the thickness of the main body 1, so that the structural strength of the protection main body 2 is high and can provide a greater bearing capacity.

[0042] In specific applications, there is an arc-shaped chamfer between the protection main body 2 and the outer wall surface of the main body 1, which can prevent stress concentration of the protection main body 2 and further improve the reliability of the protective sleeve.

[0043] In an example provided by the present utility model, the inner wall surface of the protection main body 2 and the inner wall surface of the main body 1 form a smooth fitting surface, and the fitting surface is used to fit with the outer wall surface of the epoxy sleeve. The smooth fitting surface can facilitate the movement of the epoxy sleeve, reduce the friction between the epoxy sleeve and the protective sleeve, and make the movement of the epoxy sleeve smoother.

[0044] When specifically arranged, the main body 1 and the protection main body 2 are integrally formed, and their inner wall surfaces are a conical surface structure. The cone angle of the conical surface structure matches the epoxy sleeve, so that it can be sleeved on the epoxy sleeve.

[0045] Specifically, during the operation, wipe the inner surface of the protective cover clean and install it on the end of the epoxy sleeve or on the hole of the switch cabinet; wipe the outer surface of the epoxy sleeve clean and keep it horizontal or vertical, then slowly extend the epoxy sleeve into the cabin of the switch cabinet through the protective cover, then fix the epoxy sleeve to the switch cabinet through the fixing device, and remove the protective cover.

[0046] Through the description of the above embodiments, those skilled in the art can clearly understand that in each embodiment, by configuring the main body 1 and the protective body 2, the epoxy sleeve can be isolated from the hatch during the insertion of the protective sleeve into the switch cabinet compartment, thereby preventing the epoxy sleeve from being scratched during the insertion process.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An epoxy casing protective cover, characterized in that: include: An annular main body; a protective body with a serrated structure is formed circumferentially on the main body, and the protective body extends axially from the main body and gradually converges to form a cone barrel structure.

2. The epoxy sleeve protective cover according to claim 1, characterized in that: A notch is provided on the main body so that the main body is an open ring structure.

3. The epoxy sleeve protective cover according to claim 2, characterized in that: The notch is located between two adjacent saw teeth.

4. The epoxy sleeve protective cover according to claim 1, characterized in that: A plurality of reinforcement parts are also provided on a circumference of the main body, and the plurality of reinforcement parts are arranged at intervals in the circumferential direction.

5. The epoxy sleeve protective cover according to claim 4, characterized in that: The reinforcement portion is a columnar reinforcement portion that extends vertically upward from the bottom of the main body portion.

6. The epoxy sleeve protective cover according to claim 1, characterized in that: The lowest point of the protective body is lower than the top edge of the main body.

7. The epoxy sleeve protective cover according to claim 6, characterized in that: The protection body gradually bulges outwards during the extension process, so that the protection body protrudes outwards from the outer wall surface of the main body.

8. The epoxy sleeve protective cover according to claim 1, characterized in that: The inner wall surface of the protective body and the inner wall surface of the main body form a smooth fitting surface, and the fitting surface is used to fit with the outer wall surface of the epoxy pipe sleeve.

9. The epoxy sleeve protective cover according to claim 1, characterized in that: An edge retaining ring is arranged around the bottom of the main body.

10. The epoxy sleeve protective cover according to claim 1, characterized in that: The main body and the protective body are integrally formed, and both the main body and the protective body are hard plastic parts.

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