CN218099316U - Reducing tool for power frequency withstand voltage test device - Google Patents
Reducing tool for power frequency withstand voltage test device Download PDFInfo
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- CN218099316U CN218099316U CN202222256537.7U CN202222256537U CN218099316U CN 218099316 U CN218099316 U CN 218099316U CN 202222256537 U CN202222256537 U CN 202222256537U CN 218099316 U CN218099316 U CN 218099316U
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- thread bush
- reducing
- power frequency
- thick bamboo
- test device
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Abstract
The utility model discloses a reducing frock for power frequency withstand voltage test device relates to the withstand voltage detection technical field of power frequency, including a reducing section of thick bamboo, the wherein one end fixedly connected with connecting device of a reducing section of thick bamboo, a reducing section of thick bamboo passes through connecting device and power frequency withstand voltage test device's high pressure and introduces end fixed connection. The utility model discloses a reducing cylinder, the expansion joint, the cooperation setting between structures such as thread bush, the thread bush spiro union is served in one of expansion joint in reducing cylinder, when the rotatory thread bush of user connecting device direction, because the internal diameter of thread bush reduces gradually, the internal diameter of thread bush and reducing cylinder end contact position reduces gradually, through thread bush inner wall extrusion reducing cylinder end portion, make reducing cylinder end portion follow the contraction joint shrink, carry out the centre gripping to the insulating material of unidimensional not, the connection frock size of having avoided current power frequency withstand test device as far as possible is fixed, lead to current connection frock to use the problem that has the limitation.
Description
Technical Field
The utility model belongs to the technical field of the withstand voltage testing technique of power frequency and specifically relates to a reducing frock for withstand voltage testing device of power frequency is related to.
Background
The power frequency voltage withstand test device is basic test equipment for vast users such as power stations, power supply and distribution systems, scientific research units and the like, and is used for performing insulation strength tests on various electrical products, electrical components, insulating materials and the like under specified voltage, examining the insulation level of the products, finding the insulation defects of a tested product and measuring the overvoltage capacity.
The connecting tool of the existing power frequency voltage withstand test device is usually fixed in size and can be used for a voltage withstand test device of a general insulating part, but the connecting tool cannot be applied to insulating parts with special sizes, so that the existing connecting tool is limited in use.
SUMMERY OF THE UTILITY MODEL
The connection frock size is fixed in order to improve current power frequency withstand voltage test device, leads to current connection frock to use the problem that has the limitation, the utility model provides a reducing frock for power frequency withstand voltage test device.
The utility model provides a reducing frock for power frequency withstand voltage test device adopts following technical scheme:
the utility model provides a reducing frock for power frequency withstand voltage test device, includes a reducing section of thick bamboo, the wherein one end fixedly connected with connecting device of a reducing section of thick bamboo, a reducing section of thick bamboo passes through connecting device and power frequency withstand voltage test device's high pressure introduction end fixed connection, a reducing section of thick bamboo is kept away from a plurality of expansion joints have been seted up to connecting device's one end week side, the external screw thread has been seted up on the surface of a reducing section of thick bamboo, a reducing section of thick bamboo is kept away from one of connecting device serves and overlaps and is equipped with the thread bush, the thread bush passes through the external screw thread with a reducing section of thick bamboo looks spiro union, the thread bush is close to the one end of a reducing section of thick bamboo extremely the thread bush is kept away from the internal diameter of a reducing section of thick bamboo one end reduces gradually.
By adopting the technical scheme, during use, a user firstly fixedly connects the end part of the reducer cylinder with a high-voltage lead-in end of a power frequency withstand voltage test device through a connecting device, then the threaded sleeve is screwed outwards to take the threaded sleeve off the reducer cylinder, an insulating material needing to be subjected to insulating property detection is placed into an inner cavity of the reducer cylinder far away from one end of the connecting device, then the user sleeves the threaded sleeve on the reducer cylinder again and rotates the threaded sleeve towards one end of the reducer cylinder close to the connecting device, at the moment, the threaded sleeve is pushed to move towards the connecting device under the action of threads, the inner diameter of one end of the reducer cylinder far away from the threaded sleeve is gradually reduced from one end of the threaded sleeve and the inner diameter of the end of the reducer cylinder far away from the connecting device along with the movement of the threaded sleeve, the end part of the reducer cylinder is extruded through the inner wall, the end part of the reducer cylinder is contracted along an expansion seam, the insulating material is tightly clamped in the inner cavity of the reducer cylinder, the problem that the existing power frequency insulating material with different sizes is connected and prevented from being limited due to the existing tool for use is solved.
Optionally, the connecting device includes a first flange and a bolt, the first flange is fixedly connected with the end of the reducer cylinder, the bolt penetrates through the first flange, and the bolt is screwed with the high-pressure leading-in end of the power frequency withstand voltage test device.
Through adopting above technical scheme, set up the contact surface that first flange is used for increasing a reducing section of thick bamboo and power frequency withstand voltage test device's high pressure inlet end, improve the stability of a reducing section of thick bamboo installation, adopt the connected mode of bolt spiro union to connect, not only connect firmly, convenience of customers installs and dismantles moreover.
Optionally, the thread bush is kept away from rotate in one end of reducing cylinder and be connected with the second flange, the second flange is kept away from one side fixedly connected with electrode column of thread bush, electrode column and thread bush electric connection, be equipped with the earth connection on the electrode column, the earth connection is kept away from the one end ground connection of electrode column.
Through adopting above technical scheme, set up the electrode post of being connected with the thread bush to set up the earth connection on the electrode post, make insulating material high voltage current can transmit to ground through the earth connection after puncturing, improve the security when detecting.
Optionally, a bearing is sleeved at a joint of the threaded sleeve and the second flange, the threaded sleeve is fixedly connected with the inner ring of the bearing, an outer ring of the bearing is embedded inside the second flange, and an outer ring of the bearing is fixedly connected with the second flange.
Through adopting above technical scheme, set up the bearing and be used for reducing the frictional force between thread bush and the second flange, convenience of customers rotates the position that the thread bush adjusted the thread bush to adjust the internal diameter that a reducing section of thick bamboo kept away from connecting device one end.
Optionally, a metal ring is arranged at the joint of the ground wire and the electrode column, the metal ring is sleeved on the outer surface of the electrode column and is rotatably connected with the electrode column, and the ground wire is fixedly connected with the outer surface of the metal ring.
Through adopting above technical scheme, set up the becket for pass through the becket with the earth connection and be connected with the rotation of electrode column, with the earth connection winding on the electrode column when avoiding the second flange to rotate as far as possible, lead to the earth connection owing to drag the cracked problem of effect.
Optionally, a twisting handle is arranged on the middle section of the threaded sleeve, the twisting handle is of a circular ring-shaped structure, and the twisting handle is arranged on the outer surface of the threaded sleeve and fixedly connected with the threaded sleeve.
Through adopting above technical scheme, establish the wrench at the interlude cover of thread bush, make user's accessible rotatory wrench drive thread bush rotate to it is more convenient to make the user use.
Optionally, a plurality of anti-skidding lines have been seted up to the week side of twisting hand, and is a plurality of anti-skidding line encircles twisting hand surface equidistance distributes.
Through adopting above technical scheme, offer anti-skidding line in twisting hand week side for increase the frictional force between twisting hand and the user finger, avoid the user to appear sliding relatively with twisting the hand when rotatory twisting hand as far as possible, the inconvenient problem that the user used.
To sum up, the utility model discloses beneficial effect as follows:
the utility model discloses a reducing cylinder, the expansion joint, the cooperation setting between structures such as thread bush, the thread bush spiro union is served in one of expansion joint in reducing cylinder, when the rotatory thread bush of user connecting device direction, because the internal diameter of thread bush reduces gradually, the internal diameter of thread bush and reducing cylinder end contact position reduces gradually, through thread bush inner wall extrusion reducing cylinder end portion, make reducing cylinder end portion follow the contraction joint shrink, carry out the centre gripping to the insulating material of unidimensional not, the connection frock size of having avoided current power frequency withstand test device as far as possible is fixed, lead to current connection frock to use the problem that has the limitation.
Drawings
FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;
FIG. 2 is a sectional view of the whole structure of the present invention;
fig. 3 is a schematic view of the connection structure of the screw sleeve, the screw driver and the bearing of the present invention.
Description of the reference numerals: 1. a reducing cylinder; 2. a first flange; 3. a bolt; 4. an expansion joint; 5. an external thread; 6. a threaded sleeve; 7. a second flange; 8. a bearing; 9. an electrode column; 10. a metal ring; 11. a ground line; 12. screwing a hand; 13. and (4) anti-skid lines.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-3.
Referring to fig. 1-3, a reducing tool for a power frequency withstand voltage test device includes a reducing cylinder 1, wherein one end of the reducing cylinder 1 is fixedly connected with a connecting device for fixing the reducing cylinder 1. The reducer cylinder 1 is fixedly connected with a high-voltage lead-in end of the power frequency withstand voltage test device through a connecting device. The user can introduce high-voltage current into the inner cavity of the reducer cylinder 1 through the high-voltage introduction end of the power frequency withstand voltage test device, and the insulation strength of the insulation material is detected.
A plurality of expansion joints 4 are arranged on the periphery of one end of the reducing cylinder 1 far away from the connecting device, and external threads 5 are arranged on the outer surface of the reducing cylinder 1. One end of the reducer cylinder 1, which is far away from the connecting device, is sleeved with a threaded sleeve 6, and the threaded sleeve 6 is in threaded connection with the reducer cylinder 1 through an external thread 5. The inner diameter of the thread bush 6 from the end close to the reducer cylinder 1 to the end of the thread bush 6 far away from the reducer cylinder 1 is gradually reduced. When the user is close to connecting device's the rotatory thread bush 6 of one end to a reducing section of thick bamboo 1, push thread bush 6 and remove to connecting device under the screw thread effect, because the one end that thread bush 6 is close to a reducing section of thick bamboo 1 reduces to the internal diameter that 1 one end of reducing section of thick bamboo was kept away from to thread bush 6 gradually, along with the removal of thread bush 6 makes the internal diameter that connecting device one end contact site was kept away from to a thread bush 6 and a reducing section of thick bamboo 1 reduce gradually, through 1 tip of 6 extrusion reducing sections of threaded bush, make 1 tip of a reducing section of thick bamboo shrink along expansion joint 4, thereby reach the purpose that connecting device one end internal diameter was kept away from to an adjustment reducing section of thick bamboo 1.
When the fixture is used, a user firstly fixedly connects the end part of the reducer cylinder 1 with a high-voltage lead-in end of a power frequency voltage withstand test device through the connecting device, then the threaded sleeve 6 is screwed outwards to take the threaded sleeve 6 off the reducer cylinder 1, an insulating material needing to be subjected to insulating property detection is placed in an inner cavity of one end, far away from the connecting device, of the reducer cylinder 1, then the user sleeves the threaded sleeve 6 on the reducer cylinder 1 again and rotates the threaded sleeve 6 towards one end, close to the connecting device, of the reducer cylinder 1, at the moment, the threaded sleeve 6 pushes the end part of the reducer cylinder 1 to move towards the connecting device under the action of threads, the end part of the reducer cylinder 1 shrinks along the expansion joint 4 due to the fact that the inner diameter of one end, close to the reducer cylinder 1, of the threaded sleeve 6 and the end, far away from the connecting device, of the reducer cylinder 1 gradually decreases along with the movement of the threaded sleeve 6, the inner diameter of the end, the end part, far away from the connecting device, the inner diameter of the reducer cylinder 1 is changed by adjusting the position of the threaded sleeve 6, and the problem that the size of the existing fixture is not limited when the fixture is used for the insulation material is not subjected to the power frequency voltage withstand test is avoided.
Referring to fig. 1 and 2, the connecting device comprises a first flange 2 and a bolt 3, the first flange 2 is fixedly connected with the end of the reducer cylinder 1, the bolt 3 penetrates through the first flange 2, and the bolt 3 is in threaded connection with the high-pressure leading end of the power frequency withstand voltage test device. Set up the contact surface that first flange 2 is used for increasing the high pressure inlet end of a reducing section of thick bamboo 1 and power frequency withstand voltage test device, improve the stability of a reducing section of thick bamboo 1 installation, adopt the connected mode of 3 spiro unions of bolt to connect, not only connect firmly, convenience of customers installs and dismantles moreover.
Referring to fig. 1, the end of the thread sleeve 6, which is far away from the reducer cylinder 1, is rotatably connected with a second flange 7, one side of the thread sleeve 6, which is far away from the second flange 7, is fixedly connected with an electrode column 9, the electrode column 9 is electrically connected with the thread sleeve 6, a grounding wire 11 is arranged on the electrode column 9, and one end of the grounding wire 11, which is far away from the electrode column 9, is grounded. The electrode column 9 connected with the threaded sleeve 6 is arranged, the grounding wire 11 is arranged on the electrode column 9, high-voltage current of the insulating material can be transmitted to the ground through the grounding wire 11 after breakdown, and safety during detection is improved.
Referring to fig. 3, a bearing 8 is sleeved at the joint of the threaded sleeve 6 and the second flange 7, the threaded sleeve 6 is fixedly connected with the inner ring of the bearing 8, the outer ring of the bearing 8 is embedded inside the second flange 7, and the outer ring of the bearing 8 is fixedly connected with the second flange 7. Set up bearing 8 and be used for reducing the frictional force between thread bush 6 and the second flange 7, convenience of customers rotates the position that thread bush 6 adjusted thread bush 6 to adjust the internal diameter that connecting device one end was kept away from to reducer 1.
Referring to fig. 2, a metal ring 10 is arranged at the joint of the grounding wire 11 and the electrode column 9, the metal ring 10 is sleeved on the outer surface of the electrode column 9 and is rotatably connected with the electrode column 9, and the grounding wire 11 is fixedly connected with the outer surface of the metal ring 10. Set up becket 10 for with earth connection 11 through becket 10 and electrode column 9 rotation connection, avoid second flange 7 when rotating with earth connection 11 winding on electrode column 9 as far as possible, lead to earth connection 11 owing to drag the cracked problem of effect.
Referring to fig. 1 and 3, a wrench 12 is disposed on the middle section of the threaded sleeve 6, the wrench 12 is in a circular ring structure, and the wrench 12 is sleeved on the outer surface of the threaded sleeve 6 and is fixedly connected with the threaded sleeve 6. The middle section of the threaded sleeve 6 is sleeved with the screw handle 12, so that a user can rotate the threaded sleeve 6 by rotating the screw handle 12, and the use by the user is more convenient.
Referring to fig. 3, a plurality of anti-slip threads 13 are formed on the periphery of the wrench 12, and the plurality of anti-slip threads 13 are equidistantly distributed around the outer surface of the wrench 12. The anti-slip threads 13 are arranged on the peripheral side of the twisting hand 12 and used for increasing the friction force between the twisting hand 12 and the fingers of a user, and the problem that the fingers of the user and the twisting hand 12 slide relatively when the user rotates the twisting hand 12 and are inconvenient for the user to use is avoided as much as possible.
The utility model discloses an implement the principle and do: when the device is used, a user firstly fixedly connects the end part of the reducer cylinder 1 with a high-voltage lead-in end of a power frequency withstand voltage test device through a connecting device, then the threaded sleeve 6 is screwed outwards to take the threaded sleeve 6 off the reducer cylinder 1, an insulating material needing to be subjected to insulating property detection is placed in an inner cavity of the reducer cylinder 1 far away from one end of the connecting device, then the user sleeves the threaded sleeve 6 on the reducer cylinder 1 again and rotates the threaded sleeve 6 towards one end of the reducer cylinder 1 near the connecting device, at the moment, the threaded sleeve 6 pushes the end part of the reducer cylinder 1 under the action of threads, the end part of the reducer cylinder 1 shrinks along the expansion joint 4 due to the fact that the inner diameter of one end of the threaded sleeve 6 near the reducer cylinder 1 and the end of the threaded sleeve 6 far away from the connecting device is gradually reduced along with the movement of the threaded sleeve 6, the end part of the reducer cylinder 1 far away from the connecting device is extruded through the inner wall of the threaded sleeve 6, the end part of the reducer cylinder 1 is tightly clamped in the inner cavity of the reducer cylinder 1, and the problem that the existing fixture is not limited in size when the existing fixture is connected with the existing power frequency withstand voltage test device is avoided.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a reducing frock for power frequency withstand voltage test device, includes a reducing section of thick bamboo (1), wherein one end fixedly connected with connecting device of a reducing section of thick bamboo (1), a reducing section of thick bamboo (1) introduces end fixed connection, its characterized in that through connecting device and power frequency withstand voltage test device's high pressure: keep away from a reducing section of thick bamboo (1) a plurality of expansion joints (4) have been seted up to connecting device's one end week side, external screw thread (5) have been seted up on the surface of a reducing section of thick bamboo (1), a reducing section of thick bamboo (1) is kept away from one of connecting device serves and is equipped with thread bush (6), thread bush (6) are passed through external screw thread (5) with a reducing section of thick bamboo (1) looks spiro union, thread bush (6) are close to the one end of a reducing section of thick bamboo (1) extremely thread bush (6) are kept away from the internal diameter of a reducing section of thick bamboo (1) one end reduces gradually.
2. The reducing tool for the power frequency withstand voltage test device according to claim 1, characterized in that: the connecting device comprises a first flange (2) and a bolt (3), the first flange (2) is fixedly connected with the end part of the reducer cylinder (1), the bolt (3) penetrates through the first flange (2), and the bolt (3) is in threaded connection with the high-pressure leading-in end of the power frequency pressure-resistant test device.
3. The reducing tool for the power frequency withstand voltage test device according to claim 1, characterized in that: thread bush (6) are kept away from rotate in one end of a reducing section of thick bamboo (1) and be connected with second flange (7), second flange (7) are kept away from one side fixedly connected with electrode column (9) of thread bush (6), electrode column (9) and thread bush (6) electric connection, be equipped with earth connection (11) on electrode column (9), earth connection (11) are kept away from the one end ground connection of electrode column (9).
4. The reducing tool for the power frequency withstand voltage test device according to claim 3, characterized in that: the bearing (8) is sleeved at the joint of the threaded sleeve (6) and the second flange (7), the threaded sleeve (6) is fixedly connected with the inner ring of the bearing (8), the outer ring of the bearing (8) is embedded in the second flange (7), and the outer ring of the bearing (8) is fixedly connected with the second flange (7).
5. The reducing tool for the power frequency withstand voltage test device according to claim 3, characterized in that: the electrode column is characterized in that a metal ring (10) is arranged at the joint of the grounding wire (11) and the electrode column (9), the metal ring (10) is sleeved on the outer surface of the electrode column (9) and is rotatably connected with the electrode column (9), and the grounding wire (11) is fixedly connected with the outer surface of the metal ring (10).
6. The reducing tool for the power frequency withstand voltage test device according to claim 1, characterized in that: be equipped with on the interlude of thread bush (6) and twist hand (12), twist hand (12) are ring form structure, twist hand (12) cover is located on the surface of thread bush (6) with thread bush (6) fixed connection.
7. The reducing tool for the power frequency withstand voltage test device according to claim 6, characterized in that: a plurality of anti-skidding lines (13) are seted up to the week side of twisting hand (12), and is a plurality of anti-skidding line (13) encircle twist hand (12) surface equidistance distributes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222256537.7U CN218099316U (en) | 2022-08-26 | 2022-08-26 | Reducing tool for power frequency withstand voltage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222256537.7U CN218099316U (en) | 2022-08-26 | 2022-08-26 | Reducing tool for power frequency withstand voltage test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218099316U true CN218099316U (en) | 2022-12-20 |
Family
ID=84450478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222256537.7U Active CN218099316U (en) | 2022-08-26 | 2022-08-26 | Reducing tool for power frequency withstand voltage test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218099316U (en) |
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2022
- 2022-08-26 CN CN202222256537.7U patent/CN218099316U/en active Active
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