Insulation encapsulation device for preventing busbar fault

Abstract

The invention relates to the field of insulating sheaths for high-voltage busbars, in particular to an insulating encapsulation device for preventing busbar faults, which comprises an extension mechanism comprising an extension assembly and an operation assembly arranged outside the extension assembly in a sliding manner; the supporting and protecting mechanism comprises a first supporting and protecting assembly arranged at the end of the extending assembly, a second supporting and protecting assembly arranged at the end of the first supporting and protecting assembly and an unsupporting and protecting assembly arranged at the end of the second supporting and protecting assembly. The packaging mechanism comprises a fixing block arranged at the end of the unsupporting assembly and a packaging sleeve arranged on the fixing block. Through mutual cooperation of the extension mechanism, the supporting and protecting mechanism and the packaging mechanism, the phenomenon that packaging at the connecting position of the high-voltage grounding busbar is prone to falling off can be reduced, and potential safety hazards caused by manual packaging of a power transformation maintainer can be reduced.

Description

Technical Field

[0001] The invention relates to the field of insulating sheaths for high-voltage busbars, and in particular to an insulating sheath encapsulation device for preventing busbar failures. Background Art

[0002] The insulating sheath for busbar refers to a protective layer of insulating material used for busbars (busbars) in power systems; busbars are conductors used for power distribution and transmission, usually made of copper or aluminum. The main functions of the insulating sheath include: preventing current leakage and protecting personnel and equipment from the risk of electric shock; protecting the busbar from environmental factors (such as moisture, chemicals, etc.); providing physical protection to prevent damage to the busbar during installation and use, and ensuring electrical isolation between busbars or with other conductors to prevent short circuits.

[0003] There are three types of existing insulating sheaths. The first type is a straight-sleeve type, which requires the busbar to be removed for encapsulation. If the busbar is reinstalled after being removed, the screws and nuts will not be tightened in place, which will cause the busbar to heat up, discharge, etc.; the second type is a lock-type, and the lock part will expand and contract over time after encapsulation, which may cause the encapsulation to loosen or fall off; the third type is a flat type, which needs to be tied with a binding tape after encapsulation, and the binding tape will age over time, causing the encapsulation to loosen; or holes must be punched at the encapsulation and tied with fine mesh cables, which will age over time and cause the encapsulation to loosen.

[0004] The above-mentioned insulating sheath can meet the sealing requirements of most busbars through different combinations. However, at the connection points of the busbar (such as the connection between the busbar and the insulator), the surface sealing cannot be completely covered because the connection points are bolted, and there is a possibility of falling off during routine maintenance. When sealing the existing busbar, the substation maintenance personnel directly seal it manually, which poses a safety hazard when performing such operations in high-voltage substations. Summary of the invention

[0005] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide an insulating encapsulation device to prevent busbar failure, which can solve the problem that the encapsulation at the existing high-voltage grounding busbar connection is easy to fall off and the problem that manual encapsulation by substation maintenance personnel has safety hazards.

[0007] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: an insulating encapsulation device for preventing busbar faults, comprising an extension mechanism, which includes an extension component, and an operating component slidably arranged on the outside of the extension component; a supporting mechanism, which includes a first spreading component arranged at the end of the extension component, a second spreading component arranged at the end of the first spreading component, and a de-supporting component arranged at the end of the second spreading component; an encapsulation mechanism, which includes a fixed block arranged at the end of the de-supporting component, and an encapsulation sleeve arranged on the fixed block.

[0008] As a preferred solution of the busbar fault protection insulation enclosure device of the present invention, the extension assembly includes an extension rod and a rotating shaft rod fixed to the end of the extension rod.

[0009] As a preferred solution of the busbar fault protection insulating encapsulation device described in the present invention, the extension rod is provided with a wire hole passing through the axis of the extension rod, and a wire groove connected to the side wall of the wire hole and located at the end of the extension rod away from the first support component.

[0010] As a preferred solution of the anti-busbar fault insulation encapsulation device described in the present invention, the operating component includes an operating tube slidably arranged on the outside of the extension rod, a fastening nut threadedly connected to the outside of the operating tube, and an operating sleeve sleeved on the end of the operating tube.

[0011] As a preferred solution of the anti-busbar fault insulation encapsulation device described in the present invention, a threaded bevel is provided on the outer wall of the operating tube, and the fastening nut is threadedly connected to the threaded bevel; a sliding cavity is opened in the operating sleeve, and the fastening nut is arranged in the sliding cavity.

[0012] As a preferred solution of the anti-busbar fault insulating encapsulation device described in the present invention, the operating component also includes a first sliding bar fixed in the side wall of the sliding cavity, a second sliding bar fixed on the outer wall of the fastening nut, and a first spring whose two ends respectively contact the top of the sliding cavity and the upper part of the fastening nut; there are two first sliding bars, and the second sliding bar is slidably arranged between the two first sliding bars.

[0013] As a preferred solution of the anti-busbar fault insulating enclosure device described in the present invention, the first support assembly includes a first support rod symmetrically rotatably arranged on a rotating shaft rod, a hinged rod whose two ends are respectively hinged on the side wall of the operating tube and the side wall of the first support rod, and a first pull plate fixed on the side wall of the first support rod.

[0014] As a preferred solution of the busbar fault-proof insulating encapsulation device described in the present invention, the second support assembly includes a second support rod hinged at the end of the first support rod, a second pull plate fixed on the side wall of the second support rod, and a tension spring fixed at both ends on the second pull plate and the first pull plate respectively; a release sliding hole is provided at one end of the second support rod away from the first support rod.

[0015] As a preferred solution of the anti-busbar fault insulating encapsulation device described in the present invention, the de-supporting assembly includes a de-supporting rod slidably arranged in a de-supporting sliding hole, a second spring whose two ends respectively contact the de-supporting rod and the end of the de-supporting sliding hole, and a pull rope fixed at the end of the de-supporting rod.

[0016] As a preferred solution of the anti-busbar fault insulating encapsulation device described in the present invention, the pull rope extends from the bottom opening of the self-unscrewing sliding hole to the outside of the second support rod, passes through the second pull plate and the first pull plate in sequence, and is collected in the wire hole. The pull rope collected in the wire hole extends vertically downward, passes through the wire groove, and is finally fixed to the inner wall of the operating sleeve.

[0017] As a preferred solution of the busbar fault protection insulation enclosure device of the present invention, a plug hole is provided on the fixing block, and the release rod is plugged into the plug hole.

[0018] As a preferred solution of the busbar fault protection insulation encapsulation device of the present invention, the encapsulation sleeve is a double-layer structure, the inner layer is elastic insulation resin, and the outer layer is insulation rubber.

[0019] As a preferred solution of the busbar fault protection insulation encapsulation device of the present invention, the encapsulation sleeve is semicircular after being expanded.

[0020] The beneficial effects of the present invention are as follows: the insulating encapsulation device for preventing busbar faults described in the present invention, through the cooperation of the extension mechanism, the supporting mechanism and the encapsulation mechanism, can not only reduce the phenomenon of easy falling off of the encapsulation at the connection of the high-voltage grounding busbar, but also reduce the safety hazards of manual encapsulation by substation maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 This is a schematic diagram of the overall structure of the insulation enclosure device to prevent busbar failure;

[0023] Figure 2 It is a structural diagram of the extension mechanism;

[0024] Figure 3 is a first cross-sectional view of the extension mechanism;

[0025] Figure 4 It is a partial cross-sectional enlarged view of the extension mechanism;

[0026] Figure 5 is a second cross-sectional view of the extension mechanism;

[0027] Figure 6 It is a structural diagram of the supporting mechanism;

[0028] Figure 7 A cross-sectional view of the insulation enclosure device to prevent busbar failure;

[0029] Figure 8 A first partial cross-sectional enlarged view of the busbar fault-proof insulation encapsulation device;

[0030] Fig. 9 A second partial enlarged cross-sectional view of the insulating enclosure device to prevent busbar failure. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figures 1 to 7 , is the first embodiment of the present invention, which provides an insulation encapsulation device for preventing busbar faults, specifically comprising an extension mechanism 100, which includes an extension component 101, and an operating component 102 slidably arranged on the outside of the extension component 101; a supporting mechanism 200, which includes a first spreading component 201 arranged at the end of the extension component 101, a second spreading component 202 arranged at the end of the first spreading component 201, and a de-supporting component 203 arranged at the end of the second spreading component 202; an encapsulation mechanism 300, which includes a fixed block 301 arranged at the end of the de-supporting component 203, and an encapsulation sleeve 302 arranged on the fixed block 301.

[0036] Furthermore, the extension assembly 101 includes an extension rod 101a and a rotating shaft rod 101b fixed at the end of the extension rod 101a; the extension rod 101a is provided with a wire hole O-1 passing through the axis of the extension rod 101a, and a wire groove O-2 connected to the side wall of the wire hole O-1 and located at the end of the extension rod 101a away from the first support assembly 201.

[0037] Furthermore, the operating assembly 102 includes an operating tube 102a slidably arranged on the outside of the extension rod 101a, a fastening nut 102b threadedly connected to the outside of the operating tube 102a, and an operating sleeve 102c sleeved on the end of the operating tube 102a; a threaded bevel O-3 is arranged on the outer wall of the operating tube 102a, and the fastening nut 102b is threadedly connected to the threaded bevel O-3; a sliding cavity O-4 is opened in the operating sleeve 102c, and the fastening nut 102b is arranged in the sliding cavity O-4.

[0038] It should be noted that a thread is provided on the threaded bevel O-3, and the threaded bevel O-3 is a structure that is wide at the bottom and narrow at the top. When the fastening nut 102b rotates downward, the pressure provided by the fastening nut 102b to the threaded bevel O-3 will increase, thereby causing the operating tube 102a to squeeze the extension rod 101a inward.

[0039] Preferably, the operating component 102 also includes a first slide bar 102d fixed in the side wall of the sliding cavity O-4, a second slide bar 102e fixed on the outer wall of the fastening nut 102b, and a first spring 102f whose two ends respectively contact the top of the sliding cavity O-4 and the upper part of the fastening nut 102b; there are two first slide bars 102d, and the second slide bar 102e is slidably arranged between the two first slide bars 102d.

[0040] In this embodiment, when the operator rotates the operating sleeve 102c, the operating sleeve 102c will squeeze the second slide bar 102e through the first slide bar 102d to drive the rotation of the fastening nut 102b; when the operating sleeve 102c is rotated clockwise, the fastening nut 102b rotates clockwise with the operating sleeve 102c. When rotating clockwise, the fastening nut 102b slides downward along the threaded inclined surface O-3 and squeezes the threaded inclined surface O-3, thereby squeezing the operating tube 102a inward. Extension rod 101a, which can fix the operating tube 102a and the extension rod 101a to each other through friction; when the operating sleeve 102c is rotated counterclockwise, the fastening nut 102b rotates counterclockwise with the operating sleeve 102c, and the fastening nut 102b slides upward along the threaded inclined surface O-3 during counterclockwise rotation, so that the operating tube 102a no longer squeezes the extension rod 101a inward, which can release the fixation between the operating tube 102a and the extension rod 101a.

[0041] Example 2

[0042] Reference Figures 1 to 9 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0043] Specifically, the first spreading assembly 201 includes a first support rod 201a symmetrically rotatably arranged on the rotating shaft rod 101b, a hinge rod 201b with two ends respectively hinged on the side wall of the operating tube 102a and the side wall of the first support rod 201a, and a first pull plate 201c fixed on the side wall of the first support rod 201a.

[0044] Furthermore, the second support assembly 202 includes a second support rod 202a hinged at the end of the first support rod 201a, a second pull plate 202b fixed on the side wall of the second support rod 202a, and a tension spring 202c with two ends respectively fixed on the second pull plate 202b and the first pull plate 201c; a release sliding hole O-5 is opened at one end of the second support rod 202a away from the first support rod 201a.

[0045] It should be noted that, when the first support rod 201a and the second support rod 202a are not subjected to external force, the angle between the first support rod 201a and the second support rod 202a will be opened to the maximum under the tension of the tension spring 202c on the first pull plate 201c and the second pull plate 202b. Figure 6 shown.

[0046] Furthermore, the support release assembly 203 includes a support release rod 203a slidably disposed in the support release slide hole O-5, a second spring 203b whose two ends respectively contact the support release rod 203a and the end of the support release slide hole O-5, and a pull rope 203c fixed to the end of the support release rod 203a.

[0047] Furthermore, the pull rope 203c extends from the bottom opening of the self-unscrewing slide hole O-5 to the outside of the second support rod 202a, passes through the second pull plate 202b and the first pull plate 201c in sequence, and is gathered in the wire hole O-1. The pull rope 203c gathered in the wire hole O-1 extends vertically downward, passes through the wire groove O-2, and is finally fixed to the inner wall of the operating sleeve 102c.

[0048] Furthermore, a plug hole O-6 is provided on the fixing block 301, and the release rod 203a is plugged into the plug hole O-6.

[0049] Preferably, the encapsulation sleeve 302 is a double-layer structure, the inner layer is elastic insulating resin, and the outer layer is insulating rubber; the encapsulation sleeve 302 is semicircular when expanded.

[0050] It should be noted that the encapsulation sleeve 302 will roll inward under the elastic force of the inner elastic insulating resin when not subjected to external force, and the shape of the roll depends on the solidified shape of the inner elastic insulating resin; preferably, the solidified shape of the inner elastic insulating resin can be a rectangle to adapt to the shape of the busbar.

[0051] In this embodiment, when the operator needs to seal the connection point of the busbar, the sealing mechanism 300 must first be installed on the supporting mechanism 200, and the installation process is as follows: first align the socket O-6 on the single-sided fixed block 301 with the single-sided release rod 203a and insert it, then pull the sealing sleeve 302, so that the sealing sleeve 302 pulls the second support rod 202a through the release rod 203a, so that the second support rod 202a overcomes the tension of the tension spring 202c, thereby reducing the angle between the second support rod 202a and the first support rod 201a; after this, the fixed block 301 on the other side extends to a length that the socket O-6 is aligned with the release rod 203a and inserted, and the release rod 203a on the other side can be inserted; after the release rods 203a on both sides are inserted into the socket O-6 , the operator can grab the extension rod 101a with one hand and hold the operating sleeve 102c with the other hand and pull it, so that the operating tube 102a drives the hinged rod 201b to open the first support rod 201a, and then further open the encapsulation sleeve 302; thereafter, the operator needs to rotate the operating sleeve 102c clockwise. When rotating the operating sleeve 102c clockwise, the fastening nut 102b rotates clockwise with the operating sleeve 102c. When rotating clockwise, the fastening nut 102b slides downward along the threaded inclined surface O-3 and squeezes the threaded inclined surface O-3, thereby making the operating tube 102a squeeze the extension rod 101a inward, which can fix the operating tube 102a and the extension rod 101a to each other through friction. Finally, the state of the encapsulation mechanism 300 being installed to the supporting mechanism 200 is as shown in FIG. Figure 1 shown.

[0052] It should be noted that when the operator seals the connection point of the busbar, he only needs to hold the end of the extension rod 101a to operate. After holding the end of the extension rod 101a and aligning the sealing sleeve 302 with the connection point of the busbar, the operator can hold the extension rod 101a with one hand and hold the operating sleeve 102c with the other hand to rotate the operating sleeve 102c counterclockwise. When the operating sleeve 102c is rotated counterclockwise, the fastening nut 102b rotates counterclockwise with the operating sleeve 102c. When rotating counterclockwise, the fastening nut 102b slides upward along the threaded inclined surface O-3, so that the operating tube 102a no longer squeezes the extension rod 101a inward, which can make the operating tube The fixation between 102a and the extension rod 101a is released; thereafter, the operator can push the operating sleeve 102c to make the encapsulation sleeve 302 further fit the connection point of the busbar; after the encapsulation sleeve 302 fits the connection point of the busbar, the operator needs to rotate the operating sleeve 102c clockwise again and pull the operating sleeve 102c to make the operating sleeve 102c slide relative to the operating tube 102a, which will make the operating sleeve 102c pull the pull rope 203c, so that the release rod 203a is retracted into the release sliding hole O-5, so that the encapsulation sleeve 302 is separated from the limit of the release rod 203a, and finally the encapsulation sleeve 302 will cover the connection point of the busbar under its own elastic force to complete the encapsulation.

[0053] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A busbar fault prevention insulation encapsulation device, characterized in that: include, An extension mechanism (100) comprises an extension component (101) and an operating component (102) slidably disposed outside the extension component (101); A supporting mechanism (200) comprising a first spreading component (201) arranged at the end of an extension component (101), a second spreading component (202) arranged at the end of the first spreading component (201), and a de-snapping component (203) arranged at the end of the second spreading component (202); The encapsulation mechanism (300) comprises a fixing block (301) arranged at the end of the de-supporting assembly (203), and an encapsulation sleeve (302) arranged on the fixing block (301).

2. The busbar fault prevention insulation encapsulation device according to claim 1, characterized in that: The extension assembly (101) comprises an extension rod (101a) and a rotating shaft rod (101b) fixed at the end of the extension rod (101a).

3. The busbar fault prevention insulation encapsulation device according to claim 2 is characterized in that: The extension rod (101a) is provided with a wire hole (O-1) penetrating the axis of the extension rod (101a), and a wire groove (O-2) connected to the side wall of the wire hole (O-1) and located at an end of the extension rod (101a) away from the first expansion assembly (201).

4. The busbar fault prevention insulation encapsulation device according to claim 3 is characterized in that: The operating assembly (102) comprises an operating tube (102a) slidably arranged outside the extension rod (101a), a fastening nut (102b) threadedly connected to the outside of the operating tube (102a), and an operating sleeve (102c) sleeved on the end of the operating tube (102a).

5. The busbar fault prevention insulation encapsulation device according to claim 4, characterized in that: The outer wall of the operating tube (102a) is provided with a threaded bevel (O-3), and the fastening nut (102b) is threadedly connected to the threaded bevel (O-3); The operating sleeve (102c) is provided with a sliding cavity (O-4), and the fastening nut (102b) is arranged in the sliding cavity (O-4).

6. The busbar fault prevention insulation encapsulation device according to claim 5, characterized in that: The operating assembly (102) further comprises a first slide bar (102d) fixed in the side wall of the sliding cavity (O-4), a second slide bar (102e) fixed on the outer wall of the fastening nut (102b), and a first spring (102f) whose two ends respectively contact the top of the sliding cavity (O-4) and the upper part of the fastening nut (102b); There are two first sliding bars (102d), and the second sliding bar (102e) is slidably arranged between the two first sliding bars (102d).

7. The busbar fault prevention insulation encapsulation device according to claim 6, characterized in that: The first spreading assembly (201) comprises a first support rod (201a) symmetrically rotatably arranged on a rotating shaft rod (101b), a hinge rod (201b) with two ends respectively hinged on the side wall of the operating tube (102a) and the side wall of the first support rod (201a), and a first pulling plate (201c) fixed on the side wall of the first support rod (201a).

8. The busbar fault prevention insulation encapsulation device according to claim 7, characterized in that: The second opening assembly (202) comprises a second support rod (202a) hinged to the end of the first support rod (201a), a second pull plate (202b) fixed to the side wall of the second support rod (202a), and a tension spring (202c) with two ends respectively fixed to the second pull plate (202b) and the first pull plate (201c); The second support rod (202a) is provided with a support release sliding hole (O-5) at one end away from the first support rod (201a).

9. The insulating sheath encapsulation device for contact-free high-voltage grounding busbar according to claim 8, characterized in that: The support release assembly (203) comprises a support release rod (203a) slidably arranged in a support release sliding hole (O-5), a second spring (203b) with two ends respectively contacting the support release rod (203a) and the end of the support release sliding hole (O-5), and a pull rope (203c) fixed to the end of the support release rod (203a).

10. The busbar fault prevention insulation encapsulation device according to claim 9, characterized in that: The pull rope (203c) extends from the bottom opening of the unwinding slide hole (O-5) to the outside of the second support rod (202a), passes through the second pull plate (202b) and the first pull plate (201c) in sequence, and is gathered in the wire hole (O-1). The pull rope (203c) gathered in the wire hole (O-1) extends vertically downward, passes through the wire groove (O-2), and is finally fixed to the inner wall of the operating sleeve (102c); The fixing block (301) is provided with an insertion hole (O-6), and the release rod (203a) is inserted into the insertion hole (O-6).

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