CN218215862U - Insulating sealed type bolt connector - Google Patents
Insulating sealed type bolt connector Download PDFInfo
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- CN218215862U CN218215862U CN202221993793.8U CN202221993793U CN218215862U CN 218215862 U CN218215862 U CN 218215862U CN 202221993793 U CN202221993793 U CN 202221993793U CN 218215862 U CN218215862 U CN 218215862U
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- sealing sleeve
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Abstract
The utility model discloses an insulation sealing type bolt connector, which comprises a threaded sleeve, a wiring terminal, a sealing sleeve and a sealing device, wherein the threaded sleeve is used for being in threaded connection with a connecting screw rod of an electrical equipment pile head; the first end of the wiring terminal is used for connecting an insulated wire, and the second end of the wiring terminal can contract circumferentially under the driving of the driving mechanism so as to tightly hold the threaded sleeve; the sealing sleeve is used for covering the connecting position of the wiring terminal and the insulated wire and the connecting position of the wiring terminal and the electric equipment pile head; the sealing device is used for insulating and sealing between the sealing sleeve and the insulating layer of the insulated wire and between the sealing sleeve and the pile head of the electrical equipment; above-mentioned bolted connection head can seal with electrical equipment pile head and insulated wire respectively at both ends to with the electric connection position insulation between pile head and the insulated wire closed, avoid the electrical connection point to expose, avoid the alternate short-circuit fault that the foreign matter overlap joint caused, prevent that external environment from corroding the electrical connection point, eliminate the potential safety hazard, reduce the fault rate, guarantee electrical equipment's steady operation.
Description
Technical Field
The utility model relates to a power equipment technical field, in particular to insulating sealed bolted connection head.
Background
The transformer is a main device in the power system and has very important functions. The transformer fastener is the main device of connecting transformer pile head and wire, and its electrical connection point is direct exposes in the air when using at present transformer fastener, can't prevent the overlap joint of foreign matters such as branch, object, toy, cause alternate short circuit trouble very easily, can lead to the transformer to burn out when serious, and exposed electrical connection point, easily receive acid rain, salt fog, dust, corrosive gas's corruption, can cause the connection to become invalid when serious, also cause personnel's electric shock accident and lawless persons' electricity stealing etc. easily.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide an insulation sealing type bolt connector to avoid the electrical connection point of the pile head of the electrical equipment and the wire to be exposed, eliminate the potential safety hazard, and reduce the failure rate.
In order to achieve the above object, the utility model provides a following technical scheme:
an insulation sealing type bolt connector comprising:
the threaded sleeve is used for being in threaded connection with a connecting screw rod of the pile head of the electrical equipment;
the first end of the connecting terminal is used for connecting an insulated wire, the second end of the connecting terminal can be sleeved outside the threaded sleeve, and the second end of the connecting terminal is provided with a driving mechanism for driving the second end of the connecting terminal to circumferentially contract so as to tightly hold the threaded sleeve;
the sealing sleeve is used for covering the connecting position of the wiring terminal and the insulated wire and the connecting position of the wiring terminal and the pile head of the electrical equipment;
the sealing device comprises an upper sealing element and a lower sealing element, wherein the upper sealing element is used for being arranged between the upper end of the sealing sleeve and an insulating layer of the insulated conducting wire so as to realize the insulating sealing between the upper end of the sealing sleeve and the insulated conducting wire, and the lower sealing element is arranged between the lower end of the sealing sleeve and the pile head of the electrical equipment.
Preferably, the driving mechanism comprises a locking bolt, a contraction joint is axially formed at the second end of the connecting terminal, lug plates are respectively arranged on two sides of the contraction joint, and the locking bolt penetrates through the lug plate on one side of the contraction joint and is in threaded connection with the lug plate on the other side of the contraction joint.
Preferably, the threaded sleeve is in threaded fit with a connecting screw of the electric equipment pile head to press the sealing sleeve on the electric equipment pile head.
Preferably, the closed sleeve comprises an upper closed sleeve and a lower closed sleeve, the lower closed sleeve is pressed against the pile head of the electrical equipment by the threaded sleeve, and the upper closed sleeve is detachably connected with the lower closed sleeve.
Preferably, the screw sleeve presses the closed lower sleeve to the pile head of the electrical equipment through a backing plate.
Preferably, the upper sealing element is a sealing sleeve sleeved outside the first end of the wiring terminal and the insulating layer of the insulated wire, and the sealing sleeve compresses the sealing sleeve on the wiring terminal and the insulating layer of the insulated wire.
Preferably, an axial limiting structure is arranged between the sealing sleeve and the wiring terminal.
Preferably, the axial limiting structure comprises an annular boss arranged on one of the matching surfaces of the sealing sleeve and the wiring terminal and an annular groove arranged on the other of the matching surfaces of the sealing sleeve and the wiring terminal, and the annular boss and the annular groove are matched to axially limit the sealing sleeve and the wiring terminal.
Preferably, a first positioning step surface, a second positioning step surface and a third positioning step surface are arranged on the inner wall of the sealing sleeve, the first positioning step surface is used for pressing the upper end of the sealing sleeve onto an insulating layer of an insulated wire, the second positioning step surface is used for pressing the sealing sleeve onto the upper end surface of the wiring terminal, and the third positioning step surface is used for pressing the sealing sleeve onto a positioning shoulder of the wiring terminal.
Preferably, the upper sealing element is a waterproof sealing head, the waterproof sealing head can be inserted between the sealing sleeve and the insulated wire and is in threaded connection with the sealing sleeve, and a threading hole for the insulated wire to penetrate out is formed in the waterproof sealing head.
Therefore, in order to achieve the purpose, the utility model provides an insulation sealing type bolt connector, which comprises a threaded sleeve, a wiring terminal, a sealing sleeve and a sealing device, wherein the threaded sleeve is used for being in threaded connection with a connecting screw rod of an electric equipment pile head; the first end of the wiring terminal is used for connecting an insulated wire, the second end of the wiring terminal can be sleeved outside the threaded sleeve, and the second end of the wiring terminal is provided with a driving mechanism for driving the second end of the wiring terminal to circumferentially contract so as to tightly hold the threaded sleeve; the sealing sleeve is used for covering the connecting position of the wiring terminal and the insulated wire and the connecting position of the wiring terminal and the electric equipment pile head; the sealing device comprises an upper sealing element and a lower sealing element, the upper sealing element is arranged between the upper end of the sealing sleeve and the insulating layer of the insulated wire to realize the insulating sealing between the upper end of the sealing sleeve and the insulated wire, and the lower sealing element is arranged between the lower end of the sealing sleeve and the pile head of the electrical equipment to realize the insulating sealing between the lower end of the sealing sleeve and the pile head of the electrical equipment; above-mentioned insulating sealed bolted connection head can seal with electrical equipment pile head and insulated wire respectively at both ends, thereby seal the electric connection position between binding post and the electrical equipment pile head and the electric connection position between binding post and the insulated wire is insulating wherein, avoid electrical connection point between electrical equipment pile head and the wire to expose, avoid the alternate short circuit trouble that the foreign matter overlap joint caused, prevent acid rain, salt fog, dust, the corruption of corrosive gas to electrical connection point, thereby reach and eliminate the potential safety hazard, reduce the purpose of fault rate, guarantee electrical equipment's steady operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a cross-sectional view of an insulation sealed bolted joint according to an embodiment of the present invention;
fig. 2 is an axonometric view of the waterproof sealing head provided by the embodiment of the present invention.
In the figure:
1 is a wiring terminal; 101 is an ear plate; 102 is a locking bolt; 2 is a sealing sleeve; 201 is a closed upper sleeve; 202 is a closed lower sleeve; 3 is a screw sleeve; 4 is a backing plate; 5 is a sealing sleeve; 6 is a sealing ring; 7 is a connecting screw rod of the pile head of the electrical equipment; 8 is an insulated wire; and 9 is a waterproof sealing head.
Detailed Description
The core of the utility model is to provide an insulation sealing formula bolted connection head, this insulation sealing formula bolted connection head's structural design makes its electrical connection point that can avoid electrical equipment pile head and wire expose, eliminates the potential safety hazard, reduces the fault rate.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a cross-sectional view of an insulation sealed bolt connector according to an embodiment of the present invention.
The embodiment of the utility model provides an insulating sealed bolted connection head, including swivel nut 3, binding post 1, seal cover 2 and sealing device.
The threaded sleeve 3 is used for being in threaded connection with a connecting screw rod 7 of the pile head of the electrical equipment, and the threaded sleeve 3 can be provided with internal threads with different sizes according to the specification of the pile head of the electrical equipment so as to improve the universality of the threaded sleeve 3; the first end of the wiring terminal 1 is used for connecting an insulated wire 8, the insulated wire 8 is connected with the first end of the wiring terminal 1 in a pre-prefabricated mode, the second end of the wiring terminal 1 can be sleeved outside the threaded sleeve 3, and the second end of the wiring terminal 1 is provided with a driving mechanism for driving the second end of the wiring terminal 1 to circumferentially contract so as to tightly hold the threaded sleeve 3; the sealing sleeve 2 is used for covering the connecting position of the wiring terminal 1 and the insulated wire 8 and the connecting position of the wiring terminal 1 and the pile head of the electrical equipment; the sealing device comprises an upper sealing element and a lower sealing element, the upper sealing element is used for being arranged between the upper end of the sealing sleeve 2 and the insulating layer of the insulating lead 8 to realize the insulating sealing between the upper end of the sealing sleeve 2 and the insulating lead 8, and the lower sealing element is arranged between the lower end of the sealing sleeve 2 and the pile head of the electrical equipment to realize the insulating sealing between the lower end of the sealing sleeve 2 and the pile head of the electrical equipment.
In the structure, the wiring terminal 1 and the thread sleeve 3 are made of metal materials with good electric conductivity, the sealing sleeve 2 is made of hard insulating materials, and the sealing device can be made of soft or hard insulating materials according to different structures.
Compared with the prior art, the embodiment of the utility model provides an insulating sealed formula bolted connection head can seal with electrical equipment pile head and insulated wire 8 respectively at both ends, thereby the electric connection position between binding post 1 and the electrical equipment pile head and the electric connection position between binding post 1 and the insulated wire 8 are insulating to be sealed wherein, avoid the electrical connection point between electrical equipment pile head and the wire to expose, avoid the alternate short-circuit fault that the foreign matter overlap joint caused, prevent acid rain, salt fog, dust, the corruption of corrosive gas to the electrical connection point, thereby reach and eliminate the potential safety hazard, reduce the mesh of fault rate, ensure electrical equipment's steady operation.
Specifically, in the embodiment of the utility model provides an in, actuating mechanism includes the locking bolt, and the shrinkage joint has been seted up along the axial to binding post 1's second end, and the both sides of shrinkage joint are provided with the otic placode respectively, and the locking bolt passes the otic placode of shrinkage joint one side and the otic placode threaded connection of shrinkage joint opposite side, when using, only needs corotation or reversal locking bolt, can realize binding post 1 upwards shrink or expand in order to hold tightly or to relieve swivel nut 3.
It should be noted that, the locking bolt is only as actuating mechanism the embodiment of the utility model provides a preferred embodiment, actually not be limited to this, actuating mechanism can also adopt other structures, for example actuating mechanism can locate the lock nut of binding post 1's second end for the cover, the shrinkage joint has been seted up along the axial to binding post 1's second end, and be provided with the position that is provided with the shrinkage joint with lock nut complex external screw thread, when lock nut screwed up with the external screw thread cooperation of shrinkage joint position, binding post 1's second end circumference shrink is in order to realize holding tightly swivel nut 3.
Further, one or more shrinkage joints can be seted up to binding post 1's second end, and when having seted up a plurality of shrinkage joints, a plurality of shrinkage joint circumference equipartitions.
The sealing sleeve 2 can be fixed in various ways, for example, the sealing sleeve 2 can be directly connected with the pile head of the electrical equipment in a threaded manner, and the sealing sleeve 2 can be pressed downwards on the pile head of the electrical equipment when the sealing sleeve 2 is in threaded fit with a connecting screw 7 of the pile head of the electrical equipment through the threaded sleeve 3.
Specifically, in order not to change the existing structure of the pile head of the electrical equipment, which is convenient for modifying the connection structure of the pile head of the electrical equipment and the wire of the existing electrical equipment, as shown in fig. 1, in a specific embodiment of the present invention, a fixing mode of the sealing sleeve 2 pressing the sealing sleeve 2 downwards against the pile head of the electrical equipment when the screw sleeve 3 is in threaded fit with the connecting screw 7 of the pile head of the electrical equipment is adopted, correspondingly, the sealing sleeve 2 adopts a split structure and comprises a sealing upper sleeve 201 and a sealing lower sleeve 202, the sealing lower sleeve 202 is pressed against the pile head of the electrical equipment by the screw sleeve 3, the sealing upper sleeve 201 and the sealing lower sleeve 202 are detachably connected, the connection mode between the sealing upper sleeve 201 and the sealing lower sleeve 202 includes but is not limited to threaded connection, clamping and buckling connection, in the specific embodiment of the present case, the sealing upper sleeve 201 is in threaded connection with the sealing lower sleeve 202, when the electric equipment is installed, the sealing lower sleeve 202 is firstly sleeved on the pile head of the electrical equipment, then the sealing lower sleeve 3 is screwed on the connecting screw rod 7 of the pile head of the electrical equipment, the sealing lower sleeve 202, the sealing sleeve 3 is convenient for modifying the sealing equipment, the sealing sleeve 3 is suitable for improving the sealing equipment by the sealing bolt sleeve 2, and the sealing bolt is suitable for improving the sealing equipment.
More closely, different electrical equipment pile heads need the different connecting device of adaptation, and the structural dimension of swivel nut 3 also can corresponding change, can compress tightly sealed lower cover 202 for guaranteeing swivel nut 3 effectively the utility model discloses in the embodiment, swivel nut 3 will seal lower cover 202 through backing plate 4 and compress tightly in electrical equipment pile head, when the installation, will seal lower cover 202 suit behind electrical equipment pile head, again with backing plate 4 suit on electrical equipment pile head, swivel nut 3 realizes compressing tightly sealed lower cover 202 through pushing down backing plate 4, like this, even change the swivel nut 3 of different model sizes, also can not influence the compressing tightly of sealing lower cover 202, of course, in other embodiments, swivel nut 3 also can be with backing plate 4 structure as an organic whole.
Preferably, as shown in fig. 1, in the embodiment of the utility model provides an in, go up the sealing member and locate binding post 1's upper end and the sealing sleeve 5 outside the insulating layer of insulated wire 8 for the cover, this sealing sleeve 5 is made by soft insulating material, like rubber, and sealing sleeve 2 compresses tightly sealing sleeve 5 on binding post 1 and insulated wire 8's insulating layer, and in the assembling process of sealing sleeve 2, sealing sleeve 2 compresses tightly sealing sleeve 5 with binding post 1 and the cooperation of insulated wire 8, realizes sealedly.
Further optimize above-mentioned technical scheme, for avoiding pressing against the in-process seal cover 5 of seal cover 5 for 1 axial float of binding post the embodiment of the utility model provides an in, be provided with axial limit structure between seal cover 5 and binding post 1, in other embodiments, axial limit structure also can set up between seal cover 5 and seal cover 2.
Specifically, as shown in fig. 1, the axial limiting structure includes an annular boss disposed on one of the fitting surfaces of the sealing sleeve 5 and the connection terminal 1 and an annular groove disposed on the other of the fitting surfaces of the sealing sleeve 5 and the connection terminal 1, and the annular boss and the annular groove cooperate to axially limit the sealing sleeve 5 and the connection terminal 1.
For guaranteeing the closed insulation of key part, as shown in fig. 1, in the embodiment of the utility model, be provided with first location step face, second location step face and third location step face on the 2 inner walls of closed sleeve, first location step face is used for compressing tightly seal cover 5 upper end on insulated wire 8's insulating layer, second location step face is used for compressing tightly seal cover 5 in binding post 1's up end, third location step face is used for compressing tightly seal cover 5 in binding post 1's location circular bead, realize the three point compression positioning to seal cover 5 upper, middle, lower.
In addition to the above-mentioned manner of providing the positioning step surface, the inner wall of the sealing sleeve 2 may be provided with a tapered surface, so that the sealing sleeve 5 is compressed by the tapered surface.
Except for the sealing sleeve 5, the upper sealing element can also be a waterproof sealing head 9, as shown in fig. 2, the waterproof sealing head 9 can be inserted between the sealing sleeve 2 and the insulated wire 8 and is in threaded connection with the sealing sleeve 2, a threading hole for the insulated wire 8 to penetrate out is formed in the waterproof sealing head 9, and when the waterproof sealing head 9 is installed, the insulated wire 8 penetrates out of the threading hole, and then the waterproof sealing head 9 and the sealing sleeve 2 are matched and screwed.
Preferably, as shown in fig. 1, the lower sealing member is a sealing ring 6, in the embodiment of the present invention, before the lower sleeve 202 is sealed in the installation, the sealing ring 6 is sleeved on the pile head of the electrical equipment, so that when the thread insert 3 compresses tightly the lower sleeve 202, the lower sleeve 202 is sealed to compress tightly the sealing ring 6 with the cooperation of the pile head of the electrical equipment, thereby realizing the insulation sealing between the lower end of the sealing sleeve 2 and the pile head of the electrical equipment.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An insulation sealed bolted joint characterized by comprising:
the threaded sleeve is used for being in threaded connection with a connecting screw rod of the pile head of the electrical equipment;
the first end of the wiring terminal is used for connecting an insulated wire, the second end of the wiring terminal can be sleeved outside the threaded sleeve, and a driving mechanism used for driving the second end of the wiring terminal to circumferentially contract so as to tightly hold the threaded sleeve is arranged at the second end of the wiring terminal;
the sealing sleeve is used for covering the connecting position of the wiring terminal and the insulated wire and the connecting position of the wiring terminal and the pile head of the electrical equipment;
the sealing device comprises an upper sealing element and a lower sealing element, wherein the upper sealing element is used for being arranged between the upper end of the sealing sleeve and an insulating layer of the insulated conducting wire so as to realize the insulating sealing between the upper end of the sealing sleeve and the insulated conducting wire, and the lower sealing element is arranged between the lower end of the sealing sleeve and the pile head of the electrical equipment.
2. The insulation sealed type bolt connector according to claim 1, wherein the driving mechanism includes a locking bolt, the second end of the connecting terminal is provided with a contraction joint along the axial direction, two sides of the contraction joint are respectively provided with an ear plate, and the locking bolt penetrates through the ear plate on one side of the contraction joint and is in threaded connection with the ear plate on the other side of the contraction joint.
3. The insulation sealed bolt connector according to claim 1 or 2, wherein the screw sleeve is in threaded engagement with the connecting screw of the electrical equipment pile head to press the sealing sleeve against the electrical equipment pile head.
4. The insulation sealed bolt connector according to claim 3, wherein the sealing sleeve comprises an upper sealing sleeve and a lower sealing sleeve, the screw sleeve presses the lower sealing sleeve against the pile head of the electrical equipment, and the upper sealing sleeve is detachably connected with the lower sealing sleeve.
5. The insulation sealed bolt connector according to claim 4, wherein the screw sleeve presses the lower sealing sleeve against the electrical equipment stub through a backing plate.
6. The insulation-sealed bolted joint of any one of claims 1-2 and 4-5, wherein the upper sealing member is a sealing sleeve that is fitted over the first end of the terminal and the insulation layer of the insulated conductor, and the sealing sleeve compresses the sealing sleeve against the terminal and the insulation layer of the insulated conductor.
7. The insulation sealed bolted joint of claim 6 wherein an axial stop is provided between said sealing boot and said terminal.
8. The insulation sealed bolted joint of claim 7, wherein the axial stop structure comprises an annular boss disposed on one of the mating surfaces of the sealing boot and the terminal, and an annular groove disposed on the other of the mating surfaces of the sealing boot and the terminal, the annular boss cooperating with the annular groove to axially stop the sealing boot and the terminal.
9. The insulation sealed bolt connector according to claim 6, wherein a first positioning step surface, a second positioning step surface and a third positioning step surface are provided on the inner wall of the sealing sleeve, the first positioning step surface is used for pressing the upper end of the sealing sleeve against the insulating layer of the insulated conductor, the second positioning step surface is used for pressing the sealing sleeve against the upper end surface of the wiring terminal, and the third positioning step surface is used for pressing the sealing sleeve against the positioning shoulder of the wiring terminal.
10. The insulation sealed bolt connector according to any one of claims 1-2 and 4-5, wherein the upper sealing member is a waterproof sealing head, the waterproof sealing head can be inserted between the sealing sleeve and the insulated wire and is in threaded connection with the sealing sleeve, and the waterproof sealing head is provided with a threading hole for the insulated wire to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221993793.8U CN218215862U (en) | 2022-07-29 | 2022-07-29 | Insulating sealed type bolt connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221993793.8U CN218215862U (en) | 2022-07-29 | 2022-07-29 | Insulating sealed type bolt connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218215862U true CN218215862U (en) | 2023-01-03 |
Family
ID=84652230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221993793.8U Active CN218215862U (en) | 2022-07-29 | 2022-07-29 | Insulating sealed type bolt connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218215862U (en) |
-
2022
- 2022-07-29 CN CN202221993793.8U patent/CN218215862U/en active Active
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