CN218215747U - Insulating sealed type bolt connector - Google Patents
Insulating sealed type bolt connector Download PDFInfo
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- CN218215747U CN218215747U CN202221998735.4U CN202221998735U CN218215747U CN 218215747 U CN218215747 U CN 218215747U CN 202221998735 U CN202221998735 U CN 202221998735U CN 218215747 U CN218215747 U CN 218215747U
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Abstract
The utility model discloses an insulation sealing type bolt connector, which comprises a wiring terminal, a sealing sleeve, a connecting device and a sealing device, wherein the first end of the wiring terminal is connected with an insulation wire, and the second end is provided with an external thread; the closed sleeve cover is arranged outside the electric connection position; the connecting device comprises an inner threaded sleeve and an outer threaded sleeve, the inner threaded sleeve is provided with a threaded hole matched with a connecting screw rod of the pile head of the electrical equipment, the outer threaded sleeve is rotatably sleeved outside the inner threaded sleeve, and the outer threaded sleeve is matched with an external thread at the second end of the connecting terminal to tightly press the connecting terminal on the inner threaded sleeve; the sealing device is used for insulating and sealing between the upper end of the sealing sleeve and the insulated conducting wire and between the lower end of the sealing sleeve and the pile head of the electrical equipment; above-mentioned insulation sealing formula bolted connection head can be with the electric connection position insulation between wire and the electrical equipment pile head closed, avoids the electrical connection point between pile head and the wire to expose, avoids the foreign matter overlap joint to cause alternate short circuit fault and external environment to the corruption of electrical connection position, eliminates the potential safety hazard, reduces the fault rate.
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, its electrical connection point directly exposes in the air when using of present transformer fastener, can't prevent the overlap joint of foreign matters such as branch, the object that falls from the high altitude, toy, cause alternate short-circuit fault very easily, can lead to burning out the transformer 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' steal electricity 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 first end of the connecting terminal is used for connecting an insulated wire, and the outside of the second end is provided with an external thread;
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 connecting device comprises an inner threaded sleeve and an outer threaded sleeve, the inner threaded sleeve is provided with a threaded hole which is used for being in threaded fit with a connecting screw rod of the pile head of the electrical equipment, the outer threaded sleeve is rotatably sleeved outside the inner threaded sleeve, and the outer threaded sleeve is matched with the external thread at the second end of the connecting terminal to tightly press the connecting terminal onto the inner threaded sleeve;
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 inner threaded sleeve is in threaded fit with a connecting screw rod of the electric equipment pile head to press the sealing sleeve on the electric equipment pile head.
Preferably, the closed sleeve comprises a closed upper sleeve and a closed lower sleeve, the closed lower sleeve is pressed on the pile head of the electrical equipment by the inner threaded sleeve, and the closed upper sleeve is detachably connected with the closed lower sleeve.
Preferably, the inner threaded 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 upper 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 face 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.
Preferably, the second end of the connection terminal is provided with a tapered hole which is radially tapered from the second end of the connection terminal to the first end in the axial direction, the outer wall of the inner thread insert is formed with a conical surface matched with the tapered hole, and the outer thread insert is screwed with the outer thread of the second end of the connection terminal to enable the hole wall of the tapered hole to be tightly matched with the outer wall of the inner thread insert.
Therefore, in order to achieve the above purpose, the utility model provides an insulating sealed bolt connector, which comprises a connecting terminal, a sealing sleeve, a connecting device and a sealing device, wherein the first end of the connecting terminal is used for connecting an insulated wire, and the outer part of the second end is provided with an external thread; 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 connecting device comprises an inner threaded sleeve and an outer threaded sleeve, the inner threaded sleeve is provided with a threaded hole which is used for being in threaded fit with a connecting screw rod of the pile head of the electrical equipment, the outer threaded sleeve is rotatably sleeved outside the inner threaded sleeve, the outer threaded sleeve is matched with external threads at the second end of the connecting terminal to press the connecting terminal onto the inner threaded sleeve, namely the outer threaded sleeve is screwed with the connecting terminal to tightly hold the inner threaded sleeve from two ends of the inner threaded sleeve; 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 conducting wire 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 to seal between the lower end of the sealing sleeve and the pile head of the electrical equipment; above-mentioned insulation sealing formula bolted connection head can seal with electrical equipment pile head and insulated conductor respectively at both ends, thereby with the electric connection position between binding post and the electrical equipment pile head and the electric connection position between binding post and the insulated conductor is insulating seals wherein, avoid the electrical connection point between electrical equipment pile head and the conductor to expose, avoid the alternate short circuit fault that the foreign matter overlap joint caused, prevent acid rain, salt fog, dust, corrosive gas is to the corruption of electrical connection point, thereby reach and eliminate the potential safety hazard, reduce the purpose of fault rate, ensure 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; 2 is a sealing sleeve; 201 is a closed upper sleeve; 202 is a closed lower sleeve; 3 is an inner thread sleeve; 4 is an external thread sleeve; 5, a sealing sleeve; 6 is a sealing ring; 7 is a backing plate; 8 is a connecting screw rod of the pile head of the electrical equipment; 9 is an insulated wire; and 10 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 efforts all belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a cross-sectional view of an insulation sealing type bolt connector according to an embodiment of the present invention.
The embodiment of the utility model provides an insulating sealed bolted connection head, including binding post 1, closed cover 2, connecting device and sealing device, wherein, the first end of binding post 1 is used for connecting insulated wire 9, and the outside of second end is provided with the external screw thread, and insulated wire 9 adopts the mode of prefabricating in advance to be connected with the first end of binding post 1; the sealing sleeve 2 is used for covering the connecting position of the wiring terminal 1 and the insulated wire 9 and the connecting position of the wiring terminal 1 and the pile head of the electrical equipment, wherein the electrical equipment comprises but is not limited to a transformer; the connecting device comprises an inner threaded sleeve 3 and an outer threaded sleeve 4, the inner threaded sleeve 3 is provided with a threaded hole which is used for being in threaded fit with a connecting screw 8 of the pile head of the electrical equipment, the inner threaded sleeve 3 can be internally provided with threaded holes with the same diameter from head to tail or provided with threaded step holes, and the threaded holes are formed by combining a plurality of threaded holes with different inner diameters so as to realize the adaptation of the connecting screw 8 of the pile heads of the electrical equipment with different sizes, the outer threaded sleeve 4 can be rotatably sleeved outside the inner threaded sleeve 3, the outer threaded sleeve 4 is matched with the external threads of the second end of the connecting terminal 1 to tightly press the connecting terminal 1 onto the inner threaded sleeve 3, namely the outer threaded sleeve 4 is screwed with the connecting terminal 1 to tightly hold the inner threaded sleeve 3 from the two ends of the inner threaded sleeve 3; 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 an insulating layer of the insulating lead 9 to realize the insulating sealing between the upper end of the sealing sleeve 2 and the insulating lead 9, 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 seal 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 inner 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 9 respectively at both ends, thereby the electric connection position between with binding post 1 and the electrical equipment pile head and the electric connection position between binding post 1 and the insulated wire 9 are insulating seals 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 elimination potential safety hazard, the mesh of reduction fault rate, ensure electrical equipment's steady operation.
The sealing sleeve 2 can be fixed in various ways, for example, the sealing sleeve 2 can be directly connected with the electric equipment pile head through threads, and the sealing sleeve 2 can be pressed downwards on the electric equipment pile head through the threaded matching of the inner threaded sleeve 3 and the connecting screw 8 of the electric equipment pile head.
Specifically, in order not to change the existing structure of the electrical equipment pile head, and facilitate the modification of the connection structure of the electrical equipment pile head 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 that compresses tightly the sealing sleeve 2 downward in the electrical equipment pile head when the screw-fitting of the inner thread sleeve 3 and the connecting screw 8 of the electrical equipment pile head is adopted, the sealing sleeve 2 adopts a split structure, including the sealing upper sleeve 201 and the sealing lower sleeve 202, the inner thread sleeve 3 compresses tightly the sealing lower sleeve 202 in the electrical equipment pile head, 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 screw connection, clamping and buckling connection, in the present embodiment, the sealing upper sleeve 201 and the sealing lower sleeve 202 are in screw-connection, when the installation, the sealing lower sleeve 202 is firstly sleeved on the sealing lower sleeve 202 on the electrical equipment pile head, then the inner thread sleeve 3 is screwed on the connecting screw 8 of the electrical equipment pile head, while the sealing lower sleeve 3 compresses tightly the sealing upper sleeve 202, the sealing lower sleeve 202 is in screw-fitting mode, the sealing equipment pile head and the sealing sleeve 2 is suitable for improving the sealing bolt-fitting range of the sealing equipment, and the sealing bolt-fitting range of the sealing upper sleeve 2 is not required.
More closely, different electrical equipment pile heads need the different connecting device of adaptation, and interior swivel nut 3's structural dimension also can corresponding change, for guaranteeing interior swivel nut 3 can compress tightly sealed lower cover 202 effectively the embodiment of the utility model provides an in, interior swivel nut 3 compresses tightly sealed lower cover 202 in electrical equipment pile head through backing plate 7, when the installation, will seal lower cover 202 suit behind the electrical equipment pile head, again with backing plate 7 suit on electrical equipment pile head, interior swivel nut 3 realizes compressing tightly sealed lower cover 202 through pushing down backing plate 7, like this, even change the interior swivel nut 3 of different model sizes, can not influence the compressing tightly of sealing lower cover 202 yet, of course, in other embodiments, interior swivel nut 3 also can be with backing plate 7 structure as an organic whole.
Preferably, as shown in fig. 1, in the embodiment of the present invention, the sealing sleeve 5 is disposed outside the upper end of the connecting terminal 1 and the insulating layer of the insulating wire 9, the sealing sleeve 5 is made of soft insulating material, such as rubber, the sealing sleeve 2 compresses the sealing sleeve 5 onto the insulating layers of the connecting terminal 1 and the insulating wire 9, and during the assembling process of the sealing sleeve 2, the sealing sleeve 2 is matched with the connecting terminal 1 and the insulating wire 9 to compress the sealing sleeve 5, so as to achieve sealing.
Further optimize above-mentioned technical scheme, for avoiding compressing tightly the in-process of seal cover 5, seal cover 5 is 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 9'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 10, as shown in fig. 2, the waterproof sealing head 10 can be inserted between the sealing sleeve 2 and the insulated conducting wire 9 and is in threaded connection with the sealing sleeve 2, a threading hole for the insulated conducting wire 9 to penetrate out is formed in the waterproof sealing head 10, and when the waterproof sealing head 10 is installed, the insulated conducting wire 9 penetrates out of the threading hole, and then the waterproof sealing head 10 is matched with the sealing sleeve 2 and screwed down.
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 inner thread sleeve 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.
Further optimize above-mentioned technical scheme, as shown in fig. 1, the second end of binding post 1 sets up the radial convergent bell mouth of direction from the second of binding post 1 to first end along the axial, and the outer wall of interior thread bush 3 is formed with the conical surface with bell mouth complex, and outer thread bush 4 screws up the cooperation with the external screw thread of the second end of binding post 1 so that the pore wall of bell mouth closely cooperates with the outer wall of interior thread bush 3.
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 sealing type bolted joint characterized by comprising:
the first end of the wiring terminal (1) is used for connecting an insulated wire (9), and the second end of the wiring terminal is provided with an external thread;
the sealing sleeve (2) is used for covering the connecting position of the wiring terminal (1) and the insulated wire (9) and the connecting position of the wiring terminal (1) and the pile head of the electrical equipment;
the connecting device comprises an inner threaded sleeve (3) and an outer threaded sleeve (4), the inner threaded sleeve (3) is provided with a threaded hole which is used for being in threaded fit with a connecting screw rod (8) of the pile head of the electrical equipment, the outer threaded sleeve (4) is rotatably sleeved outside the inner threaded sleeve (3), and the outer threaded sleeve (4) is matched with the external thread at the second end of the wiring terminal (1) to press the wiring terminal (1) against the inner threaded sleeve (3);
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 (2) and an insulating layer of the insulating lead (9) to realize the insulating sealing between the upper end of the sealing sleeve (2) and the insulating lead (9), and the lower sealing element is arranged between the lower end of the sealing sleeve (2) and the pile head of the electrical equipment.
2. Insulation-sealing bolt-connection head according to claim 1, characterized in that the inner thread insert (3) is in threaded engagement with a connecting screw (8) of the electrical equipment stub head for pressing the closure sleeve (2) against the electrical equipment stub head.
3. Insulation-sealing bolt connector according to claim 2, characterized in that the closing sleeve (2) comprises a closing upper sleeve (201) and a closing lower sleeve (202), the inner thread sleeve (3) presses the closing lower sleeve (202) against the electrical equipment stub, and the closing upper sleeve (201) is detachably connected with the closing lower sleeve (202).
4. Insulation-sealed bolted joint according to claim 3, characterized in that said inner threaded sleeve (3) presses said lower sealing sleeve (202) against said electrical equipment stub through a backing plate (7).
5. The insulation sealed bolt joint according to any one of claims 1 to 4, wherein the upper sealing member is a sealing sleeve (5) fitted over the upper end of the connection terminal (1) and the insulating layer of the insulated wire (9), and the sealing sleeve (2) presses the sealing sleeve (5) against the insulating layer of the connection terminal (1) and the insulating layer of the insulated wire (9).
6. Insulation-sealing bolted joint according to claim 5, characterized in that an axial stop is provided between the sealing sleeve (5) and the terminal (1).
7. The insulation sealed bolted joint according to claim 6, characterized in that the axial limiting structure comprises an annular boss provided on one of the mating surfaces of the sealing sleeve (5) and the terminal (1) and an annular groove provided on the other of the mating surfaces of the sealing sleeve (5) and the terminal (1), the annular boss cooperating with the annular groove to axially limit the sealing sleeve (5) and the terminal (1).
8. The insulation sealed bolt connector according to claim 5, wherein the inner wall of the sealing sleeve (2) is provided with a first positioning step surface, a second positioning step surface and a third positioning step surface, the first positioning step surface is used for pressing the upper end of the sealing sleeve (5) onto the insulating layer of the insulated wire (9), the second positioning step surface is used for pressing the sealing sleeve (5) onto the upper end surface of the wiring terminal (1), and the third positioning step surface is used for pressing the sealing sleeve (5) onto the positioning shoulder of the wiring terminal (1).
9. The insulation sealed bolt connector according to any one of claims 1-4, wherein the upper sealing member is a waterproof sealing head (10), the waterproof sealing head (10) can be inserted between the sealing sleeve (2) and the insulated wire (9) and is in threaded connection with the sealing sleeve (2), and a threading hole for the insulated wire (9) to pass through is formed in the waterproof sealing head (10).
10. The insulation sealed bolt connector according to any one of claims 1-4 and 6-8, wherein the second end of the terminal (1) is axially provided with a tapered hole which is radially tapered from the second end to the first end of the terminal (1), the outer wall of the inner threaded sleeve (3) is formed with a tapered surface which is matched with the tapered hole, and the outer threaded sleeve (4) is screwed and matched with the outer thread of the second end of the terminal (1) so that the hole wall of the tapered hole is tightly matched with the outer wall of the inner threaded sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221998735.4U CN218215747U (en) | 2022-07-29 | 2022-07-29 | Insulating sealed type bolt connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221998735.4U CN218215747U (en) | 2022-07-29 | 2022-07-29 | Insulating sealed type bolt connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218215747U true CN218215747U (en) | 2023-01-03 |
Family
ID=84653952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221998735.4U Active CN218215747U (en) | 2022-07-29 | 2022-07-29 | Insulating sealed type bolt connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218215747U (en) |
-
2022
- 2022-07-29 CN CN202221998735.4U patent/CN218215747U/en active Active
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