CN213936070U - Overload protection device of voltage transformer - Google Patents
Overload protection device of voltage transformer Download PDFInfo
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- CN213936070U CN213936070U CN202120105315.8U CN202120105315U CN213936070U CN 213936070 U CN213936070 U CN 213936070U CN 202120105315 U CN202120105315 U CN 202120105315U CN 213936070 U CN213936070 U CN 213936070U
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- protection box
- overload
- voltage transformer
- sleeve
- overload protection
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Abstract
The utility model discloses an overload protection device of a voltage transformer, which relates to the technical field of voltage transformer related equipment, and comprises a protection box, wherein the inside of the protection box is provided with an overload protector through an installation screw, the surface of the overload protector is provided with an overload switch, the top of the overload protector is provided with a sleeve for splicing a wire, the outside of one side of the sleeve is provided with a limit screw, the top of the protection box is provided with a through hole for the wire to pass through, one side of the protection box is fixed with a box cover through hinge joint, the box cover is provided with an observation window, and a sealing rubber strip is fixed on the contact surface of the box cover and the protection box through bonding; the protection box is installed at a designated position to work through the connecting blocks and the fixed screw holes on the two sides of the protection box, the structure is simple, the use is convenient, and the installation, the fixing, the dismounting and the replacement of workers are convenient.
Description
Technical Field
The utility model relates to a voltage transformer correlation equipment technical field specifically is a voltage transformer's overload protection device.
Background
Voltage transformers are instruments for transforming voltages, similar to transformers. However, the purpose of transforming voltage by the transformer is to conveniently transmit electric energy, so that the capacity is very large, and usually kilovolt-ampere or mega volt-ampere is taken as a calculation unit; the voltage transformer is mainly used for supplying power to a measuring instrument and a relay protection device, measuring the voltage, power and electric energy of a line, or protecting valuable equipment, a motor and a transformer in the line when the line fails, so that the capacity of the voltage transformer is small, generally only a few volt-amperes and dozens of volt-amperes, and the maximum voltage of the voltage transformer does not exceed one thousand volt-amperes.
In the practical use process of the voltage transformer, overload phenomena can occur due to various reasons, so that most of the voltage transformers are provided with overload protection devices, the voltage transformer overload protection devices on the market are often installed outdoors when in use, the performance of the overload protection devices is easy to decline in severe environments, and particularly in rainy and snowy weather, the overload protection devices can be out of order or lead to circuit breaking in advance, so that the overload protection devices of the voltage transformers need to be provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a voltage transformer's overload protection device, connecting block and fixed screw through protection box both sides will protect the box and install in the assigned position and carry out work, simple structure, convenient to use, the staff's of being convenient for installation is fixed and dismantle the change to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a voltage transformer's overload protection device, includes the protection box, the inside of protection box is provided with overload protection ware through the construction screw, overload protection ware's surface is provided with the overload switch, overload protection ware's top is provided with the sleeve that is used for the grafting wire, be provided with spacing screw on telescopic one side outside, the top of protection box is provided with the through-hole that supplies the wire to pass through, one side of protection box is fixed with the lid through hinge joint, be provided with observation window on the lid, the lid is fixed with joint strip with the contact surface bonding of protection box.
Preferably, the overload protector is provided with mounting holes, the mounting screws are mounted in the mounting holes in a threaded manner, and four groups of mounting holes are symmetrically arranged.
Preferably, the two sides of the protection box are both provided with connecting blocks, and the connecting blocks are provided with fixing screw holes.
Preferably, the outer wall of one side of the sleeve is provided with a limiting screw hole, the limiting screw is installed inside the limiting screw hole in a threaded mode, and the sleeve is at least provided with two groups.
Preferably, the through hole and the sleeve are correspondingly arranged, and the sealing ring is arranged in the through hole.
Preferably, the peripheral edge of lid is seted up flutedly, joint strip sets up the inside in recess.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the overload protector is arranged in the protection box through the mounting holes and the mounting screws on the overload protector, and the protection box is arranged at an appointed position through the connecting blocks and the fixing screws on the two sides of the protection box for working, so that the overload protector is simple in structure, convenient to use and convenient for workers to install, fix, disassemble and replace;
2. the sealing rubber strip is bonded and fixed on the contact surface of the box cover and the protection box, and the sealing ring is arranged in the through hole, so that the device has excellent sealing property in the use process, and the influence of external water, dust and the like entering the protection box on the work of the overload protector is avoided; the limiting screws are arranged on the side walls of the sleeves and used for fixing the wires in an inserting mode, so that the wires can be quickly and conveniently inserted when the device is used.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the through hole of the present invention;
fig. 3 is a schematic structural view of the sleeve of the present invention.
In the figure: 1. a protection box; 2. mounting screws; 3. an overload protector; 4. an overload switch; 5. a sleeve; 6. a limiting screw; 7. a through hole; 8. a box cover; 9. an observation window; 10. sealing rubber strips; 11. mounting holes; 12. connecting blocks; 13. fixing screw holes; 14. a limiting screw hole; 15. a seal ring; 16. and (4) a groove.
Detailed Description
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. 1-3, the present invention provides a technical solution:
an overload protection device of a voltage transformer comprises a protection box 1, wherein an overload protector 3 is arranged inside the protection box 1 through a mounting screw 2, an overload switch 4 is arranged on the surface of the overload protector 3, a sleeve 5 for inserting a wire is arranged at the top of the overload protector 3, a limit screw 6 is arranged on the outer part of one side of the sleeve 5, a through hole 7 for the wire to pass through is arranged at the top of the protection box 1, a box cover 8 is fixed at one side of the protection box 1 through a hinge, an observation window 9 is arranged on the box cover 8, a sealing rubber strip 10 is fixed on the contact surface of the box cover 8 and the protection box 1 in an adhesion manner, a mounting hole 11 is arranged on the overload protector 3, the mounting screws 2 are arranged inside the mounting hole 11 in a threaded manner, four groups of the mounting holes 11 are symmetrically arranged, connecting blocks 12 are arranged on two sides of the protection box 1, a fixing screw hole 13 is arranged on the connecting block 12, a limit screw hole 14 is arranged on the outer wall of one side of the sleeve 5, the limiting screw 6 is arranged inside the limiting screw hole 14 in a threaded mode, the sleeve 5 is at least provided with two groups, the through hole 7 is arranged corresponding to the sleeve 5, the sealing ring 15 is arranged inside the through hole 7, the groove 16 is formed in the edge of the periphery of the box cover 8, and the sealing rubber strip 10 is arranged inside the groove 16.
The utility model provides an overload protection device of voltage transformer, install overload protector 3 inside protection box 1 through mounting hole 11 and mounting screw 2 on overload protector 3, install protection box 1 in the assigned position through connecting block 12 and the fixed screw 13 of protection box 1 both sides and carry out work, simple structure, convenient to use, the installation of the staff of being convenient for is fixed and is dismantled the change; the sealing rubber strip 10 is bonded and fixed on the contact surface of the box cover 8 and the protection box 1, and the sealing ring 15 is arranged in the through hole 7, so that the device has excellent sealing performance in the use process, and the influence of external water, dust and the like entering the protection box 1 on the work of the overload protector 3 is avoided; the limiting screw 6 is arranged on the side wall of the sleeve 5 and used for fixing the insertion of the wires, so that the insertion of the wires is very fast and convenient when the device is used.
Wherein, joint strip 10 and sealing washer 15's material all can set up to polyurethane rubber, and its wear resistance is excellent, and is high, the elasticity is good at shao shi A60 to shao shi A70 hardness within range intensity, and the shock attenuation nature is good, and vibration frequency is higher, and energy absorption is big more, and oil resistance and drug resistance are good, and the affinity with nonpolar mineral oil is less, hardly do not corrode in fuel oil and mechanical oil, and coefficient of friction is higher, can also replace butadiene acrylonitrile rubber material etc. according to actual conditions.
The working principle is as follows: when the utility model is used, the overload protector 3 is arranged in the protection box 1 through the mounting screw 2 and the mounting hole 11, the protection box 1 is arranged at a designated position through the connecting blocks 12 and the fixing screw holes 13 at the two sides of the protection box 1, the wires are fixedly inserted and connected through the through hole 7 at the top of the protection box 1 and the sleeve 5 at the top of the overload protector 3, and are fixed through the limiting screw 6 at one side of the sleeve 5, the observation window 9 on the box cover 8 can be convenient for workers to check and maintain, the sealing rubber strip 10 on the box cover 8 and the sealing ring 15 in the through hole 7 can provide a sealed environment for the overload protector 3, and the work of the overload protector is convenient; the overload protector 3 is arranged inside the protection box 1 through the mounting hole 11 and the mounting screw 2 on the overload protector 3, and the protection box 1 is arranged at a specified position through the connecting blocks 12 and the fixing screw holes 13 on the two sides of the protection box 1 to work, so that the overload protector is simple in structure, convenient to use and convenient for installation, fixation, disassembly and replacement of workers; the sealing rubber strip 10 is bonded and fixed on the contact surface of the box cover 8 and the protection box 1, and the sealing ring 15 is arranged in the through hole 7, so that the device has excellent sealing performance in the use process, and the influence of external water, dust and the like entering the protection box 1 on the work of the overload protector 3 is avoided; the limiting screw 6 is arranged on the side wall of the sleeve 5 and used for fixing the insertion of the wires, so that the insertion of the wires is very fast and convenient when the device is used.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An overload protection device of a voltage transformer comprises a protection box (1), and is characterized in that: the inside of protection box (1) is provided with overload protection ware (3) through installation screw (2), the surface of overload protection ware (3) is provided with overload switch (4), the top of overload protection ware (3) is provided with sleeve (5) that are used for the grafting wire, be provided with spacing screw (6) on one side outside of sleeve (5), the top of protection box (1) is provided with through-hole (7) that supply the wire to pass through, one side of protection box (1) is fixed with lid (8) through the hinge joint, be provided with observation window (9) on lid (8), lid (8) are fixed with joint strip (10) with the contact surface bonding of protection box (1).
2. The overload protection device for the voltage transformer according to claim 1, wherein: the overload protection device is characterized in that mounting holes (11) are formed in the overload protection device (3), mounting screws (2) are mounted in the mounting holes (11) in a threaded mode, and four groups of the mounting holes (11) are symmetrically arranged.
3. The overload protection device for the voltage transformer according to claim 1, wherein: the protection box is characterized in that connecting blocks (12) are arranged on two sides of the protection box (1), and fixing screw holes (13) are formed in the connecting blocks (12).
4. The overload protection device for the voltage transformer according to claim 1, wherein: the sleeve is characterized in that a limiting screw hole (14) is formed in the outer wall of one side of the sleeve (5), the limiting screw (6) is installed inside the limiting screw hole (14) in a threaded mode, and at least two groups of the sleeve (5) are arranged.
5. The overload protection device for the voltage transformer according to claim 1, wherein: the through hole (7) and the sleeve (5) are correspondingly arranged, and a sealing ring (15) is arranged in the through hole (7).
6. The overload protection device for the voltage transformer according to claim 1, wherein: the peripheral edge of lid (8) is seted up flutedly (16), joint strip (10) are arranged in the inside of flutedly (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120105315.8U CN213936070U (en) | 2021-01-15 | 2021-01-15 | Overload protection device of voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120105315.8U CN213936070U (en) | 2021-01-15 | 2021-01-15 | Overload protection device of voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213936070U true CN213936070U (en) | 2021-08-10 |
Family
ID=77158671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120105315.8U Active CN213936070U (en) | 2021-01-15 | 2021-01-15 | Overload protection device of voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213936070U (en) |
-
2021
- 2021-01-15 CN CN202120105315.8U patent/CN213936070U/en active Active
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