CN217424500U - Protective instrument using oil level change as electrical signal - Google Patents
Protective instrument using oil level change as electrical signal Download PDFInfo
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- CN217424500U CN217424500U CN202220998059.4U CN202220998059U CN217424500U CN 217424500 U CN217424500 U CN 217424500U CN 202220998059 U CN202220998059 U CN 202220998059U CN 217424500 U CN217424500 U CN 217424500U
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Abstract
The utility model relates to a transformer relay protection technical field just discloses a take oil level to change as protection instrument of electrical signal, including the YZF-90 table body, the YZF-90 table body is used for the product to fix in transformer box side, installs the rear axle support at YZF-90 table body flange rear, and rear axle support center is provided with the rear axle, has cup jointed the rear axle spacer on the rear axle excircle, and rear axle support one side outer wall is provided with rear axle support fastening screw, is provided with the erection seal circle between rear axle support and the rear axle support fastening screw, is provided with cylindrical magnet on the rear axle front end outer wall, and threaded connection has the back magnet steel fixed block on the rear axle screw, and the rear axle tip is located YZF-90 table body rear chamber shrinkage pool. The utility model discloses in, through the YZF-90 table body that sets up, the structure of the YZF-90 table body distributes rationally, and the volume is less, can avoid pointer type oil level gaugember appearance commonly used too big, can't install the problem that the oil tank side used in the regulator cubicle.
Description
Technical Field
The utility model relates to a transformer relay protection technical field especially relates to a change as electrical signal's protection instrument with oil level.
Background
At present, the inside oil level indicating device of traditional oily formula power transformer box also is called as the oil level gauge, and its relay protection's main points are: when the oil level of the transformer oil storage cabinet rises or falls, the floater of the oil level gauge floats up and down along with the oil level gauge to drive the ball float rod to swing up and down, and the ball float rod drives the pointer of the display part to rotate through the transmission part and the magnetic coupler, so that the oil level of the transformer oil tank is displayed on the dial. When the oil level rises to the highest or falls to the lowest, the pointer indicates the maximum or minimum position and simultaneously issues an alarm signal.
The traditional pointer type oil level meter has the following defects: 1. the YZF2-140 pointer type oil level gauge and the YZF2-200 pointer type oil level gauge are too large in appearance and cannot be installed on the side face of an oil tank to be used in an electrical cabinet; 2. the tubular liquid level meter has small volume, but has small indication liquid level range and can not be arranged on the side surface of the oil tank for use; 3. the common alarm switch of the small-sized oil level indicator usually uses a reed switch only having a normally open point, and cannot meet the requirement that an alarm contact is a single-pole double-throw or normally closed contact on the spot of a user.
For this purpose, a protective device is proposed which uses the change in the oil level as an electrical signal.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a protection instrument as electrical signal with the oil level change.
In order to achieve the purpose, the utility model adopts the following technical scheme, a protective instrument taking oil level change as an electrical signal comprises a YZF-90 meter body, wherein the YZF-90 meter body is used for fixing a product on the side surface of a transformer box body, a rear shaft support is arranged behind a flange of the YZF-90 meter body, the center of the rear shaft support is provided with a rear shaft, a rear shaft spacer bush is sleeved on the excircle of the rear shaft, the outer wall of one side of the rear shaft support is provided with a rear shaft support fastening screw, a mounting sealing ring is arranged between the rear shaft support and the rear shaft support fastening screw, the outer wall of the front end of the rear shaft is provided with a cylindrical magnet, the rear shaft thread is in threaded connection with a rear magnetic steel fixing block, and the tip of the rear shaft is positioned in a concave hole of the rear cavity of the YZF-90 meter body; a rear shaft rotation limiting screw is fixedly connected in a thread of an excircle of a middle step of the rear shaft, two eccentric wheels are fixedly connected on the outer end face of a rear shaft bracket and used for limiting the rotation angle of the rear shaft and the rotation limiting screw, a meter rod joint is inserted in a cross hole of the rear shaft close to the top end and is fixed by a cotter pin, a meter rod joint fixing screw is arranged on the outer wall of the meter rod joint, a meter rod joint fixing screw-locking nut is arranged on one side of the meter rod joint fixing screw to prevent the rear shaft from falling off after vibration, a meter rod is inserted in a meter rod joint hole and is riveted by a rivet, the other end of the meter rod penetrates through the center of a floating ball, a front shaft is arranged at the center of a front cavity of the YZF-90 meter body, the tip at the lower end of the front shaft is abutted against a concave hole at the center of a front cavity of the YZF-90 meter body, a cylindrical magnet is arranged on the outer wall of the front shaft, a front magnet steel fixing block is connected with the outer wall of the front shaft, and the front shaft and the magnet steel on the rear shaft forms magnetic coupling transmission, a front shaft support is fixed on a second step of the front cavity of the YZF-90 watch body from inside to outside, and the front shaft support penetrates through the inner wall of the front shaft.
Further, a low oil level alarm switch and a high oil level alarm switch are fixedly connected to the outer wall of the front shaft support, a first alarm switch trigger cam and a second alarm switch trigger cam are respectively installed in holes which are perpendicular to the two cylindrical magnets on the front magnetic steel fixing block, when a YZF-90 oil level meter needs to alarm at a high oil level and a low oil level, only the first alarm switch trigger cam is installed, and when a YZF-90 oil level meter needs to alarm at a low oil level and an ultra-low oil level, the first alarm switch trigger cam and the second alarm switch trigger cam need to be installed.
Furthermore, a YZF-90 dial is arranged on the third step of the front cavity of the YZF-90 watch body from inside to outside and fixed by screws, and the upper end of the front shaft extending out of the YZF-90 dial is fixedly connected with a YZF-90 watch hand.
Furthermore, a glass window-inner sealing ring is arranged on the end face of the YZF-90 meter body, window glass is pressed above the glass window-inner sealing ring, a glass window-outer sealing ring is arranged above the window glass, a glass window-pressing ring is connected to the outer wall of the YZF-90 meter body through threads, and after the glass window-pressing ring is pre-tightened, the inside of the YZF-90 oil level meter is isolated from the external environment.
Further, an outlet box connecting screw sleeve is arranged on the YZF-90 meter body side platform, an outlet box-box body is connected to the outer wall of the outlet box connecting screw sleeve, a front shaft support-locking screw is arranged on the outer wall of one side of the outlet box-box body, an outlet box and a meter body sealing ring are arranged between the front shaft support-locking screw and the outlet box-box body, and an outlet box sealing ring is arranged between the outlet box connecting screw sleeve and the outlet box-box body.
Further, a wire outlet box cover is arranged above the wire outlet box-box body, a wire outlet box cover-locking screw is fixedly connected to the outer wall of the wire outlet box cover, the wire outlet box cover-locking screw is fixedly connected to the top of the wire outlet box-box body, a wire outlet box sealing ring is arranged between the box cover and the wire outlet box cover-locking screw and used for preventing water and dust, a Glan head is arranged at the outlet of the wire outlet box-box body and used for electric wire outlet, and a Glan head sealing ring is arranged between the wire outlet box-box body and the Glan head.
Furthermore, the outer wall of the outlet box-box body is provided with a welding body of an insulating plate and a connecting terminal, and the lower end of the welding body of the insulating plate and the connecting terminal is welded with a lead connected with the low oil level alarm switch and the high oil level alarm switch.
Advantageous effects
The utility model provides a take oil level to change as electrical signal's protection instrument. The method has the following beneficial effects:
(1) according to the protective instrument taking the change of the oil level as the electrical signal, through the arranged YZF-90 meter body, the YZF-90 meter body is reasonable in structural distribution and small in size, and the problem that the common pointer type oil level gauge is too large in appearance and cannot be used in an electrical cabinet when the side face of an oil tank is installed can be solved.
(2) This regard as electrical signal's protection instrument with oil level change, low oil level alarm switch and high oil level alarm switch through setting up, low oil level alarm switch and high oil level alarm switch are the single-pole double-throw normally open normal close contact, can effectually avoid the alarm switch of ordinary small-size oil level gaugember to use the tongue tube that only has normally open point usually, can't satisfy the requirement that the on-the-spot warning contact of user needs be single-pole double-throw or normally closed contact, make things convenient for the staff to use.
Drawings
The structures, the proportions, the sizes, and the like shown in the specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the practical limitations of the present invention, so they have no technical essential significance.
FIG. 1 is a front view of the present application;
FIG. 2 is a cross-sectional view B-B of FIG. 1;
FIG. 3 is a top view of the present invention;
FIG. 4 is a rotational cross-sectional view A-A of FIG. 3;
fig. 5 is a perspective view of the present invention.
Illustration of the drawings: 1. YZF-90 watch body; 2. glass window-pressing ring; 3. glass window-outer sealing ring; 4. glass window-inner seal ring; 5. a window glass; 6. YZF-90 watch hand; 7. YZF-90 dial; 8. a front axle; 9. a front axle support; 10. a front magnetic steel fixing block; 11. a cylindrical magnet; 12. a rear magnetic steel fixing block; 13. a rear axle spacer sleeve; 14. installing a sealing ring; 15. a rear axle bracket fastening screw; 16. a rear axle bracket; 17. an eccentric wheel; 18. the rear shaft rotates the stop screw; 19. a rear axle; 20. the meter rod joint is fixed with a screw and a locking nut; 21. a meter lever joint fixing screw; 22. a meter lever; 23. a floating ball; 24. a glan head; 25. a gland head seal ring; 26. outlet box-box; 27. an outlet box sealing ring; 28. a wiring terminal; 29. a wire outlet box cover; 30. the outlet box is connected with the threaded sleeve; 31. outlet box cover-locking screw; 32. the outlet box and the meter body sealing ring; 33. front axle support-locking screws; 34. the alarm switch triggers the first cam; 35. a low oil level alarm switch; 36. the alarm switch triggers the second cam; 37. a high oil level alarm switch; 38. the meter pole connects.
Detailed Description
A protective instrument taking oil level change as an electrical signal comprises a YZF-90 meter body 1, wherein the YZF-90 meter body 1 is used for fixing a product on the side face of a transformer box body, a rear shaft support 16 is installed behind a flange of the YZF-90 meter body 1, a rear shaft 19 is arranged in the center of the rear shaft support 16, a rear shaft spacer 13 is sleeved on the excircle of the rear shaft 19, a rear shaft support fastening screw 15 is arranged on the outer wall of one side of the rear shaft support 16, an installation sealing ring 14 is arranged between the rear shaft support 16 and the rear shaft support fastening screw 15, a cylindrical magnet 11 is arranged on the outer wall of the front end of the rear shaft 19, a rear magnetic steel fixing block 12 is in threaded connection with the rear shaft 19, and the tip of the rear shaft 19 is positioned in a concave hole in the rear cavity of the YZF-90 meter body 1; a rear shaft rotary limiting screw 18 is fixedly connected in the screw thread of the excircle of the middle step of the rear shaft 19, two eccentric wheels 17 are fixedly connected on the outer end surface of the rear shaft bracket 16 and used for limiting the rotation angle of the rear shaft 19 and the rotary limiting screw 18, a meter rod joint 38 is inserted in a transverse hole of the rear shaft 19 close to the top end and fixed by a cotter pin, a meter rod joint fixing screw 21 is arranged on the outer wall of the meter rod joint 38, a meter rod joint fixing screw-locking nut 20 is arranged on one side of the meter rod joint fixing screw 21 to prevent the meter rod joint from falling off after vibration, a meter rod 22 is inserted in the meter rod joint 38 hole and riveted by a rivet, the other end of the meter rod 22 penetrates through the center of a floating ball 23, a front shaft 8 is arranged at the center of the front cavity of the YZF-90 meter body 1, the tip part at the lower end of the front shaft 8 is propped in a concave hole at the center of the front cavity of the YZF-90 meter body 1, a cylindrical magnet 11 is arranged on the outer wall of the front shaft 8, and the outer wall of the front shaft 8 is in threaded connection with a front magnetic steel fixing block 10, magnetic steel on the front shaft 8 and the rear shaft 19 form magnetic coupling transmission, a front shaft bracket 9 is fixed on a second-layer step of the front cavity of the YZF-90 meter body 1 from inside to outside, and the front shaft bracket 9 penetrates through the inner wall of the front shaft 8.
The outer wall of the front shaft support 9 is fixedly connected with a low oil level alarm switch 35 and a high oil level alarm switch 37, a first alarm switch trigger cam 34 and a second alarm switch trigger cam 36 are respectively installed in two holes which are perpendicular to the cylindrical magnet 11 on the front magnetic steel fixing block 10, when a YZF-90 oil level meter needs to alarm a high oil level and a low oil level, only the first alarm switch trigger cam 34 is installed, and when a YZF-90 oil level meter needs to alarm a low oil level and an ultra-low oil level, the first alarm switch trigger cam 34 and the second alarm switch trigger cam 36 need to be installed.
A YZF-90 dial 7 is arranged on the third step of the front cavity of the YZF-90 watch body 1 from inside to outside and fixed by screws, and the upper end of the front shaft 8 extending out of the YZF-90 dial 7 is fixedly connected with a YZF-90 watch hand 6.
The end face of the YZF-90 meter body 1 is provided with a glass window-inner sealing ring 4, window glass 5 is pressed above the glass window-inner sealing ring 4, a glass window-outer sealing ring 3 is arranged above the window glass 5, the outer wall of the YZF-90 meter body 1 is in threaded connection with a glass window-pressing ring 2, and after the glass window-pressing ring 2 is pre-tightened, the inside of the YZF-90 oil level meter is isolated from the external environment.
An outlet box connecting screw sleeve 30 is arranged on a platform at the side of the YZF-90 watch body 1, the outer wall of the outlet box connecting screw sleeve 30 is connected with an outlet box-box body 26, the outer wall of one side of the outlet box-box body 26 is provided with a front shaft support-locking screw 33, an outlet box and watch body sealing ring 32 is arranged between the front shaft support-locking screw 33 and the outlet box-box body 26, and an outlet box sealing ring 27 is arranged between the outlet box connecting screw sleeve 30 and the outlet box-box body 26.
An outlet box cover 29 is arranged above the outlet box-box body 26, an outlet box cover-locking screw 31 is fixedly connected to the outer wall of the outlet box cover 29, the outlet box cover-locking screw 31 is fixedly connected to the top of the outlet box-box body 26, an outlet box sealing ring 27 is arranged between the box cover 29 and the outlet box cover-locking screw 31 and used for water and dust prevention, a gland head 24 is arranged at the outlet of the outlet box-box body 26 and used for electric outlet, and a gland head sealing ring 25 is arranged between the outlet box-box body 26 and the gland head 24.
And the outer wall of the outlet box-box body 26 is provided with a welded body of an insulating plate and a connecting terminal 28, and the lower end of the welded body of the insulating plate and the connecting terminal 28 is welded with a lead connected with a low oil level alarm switch 35 and a high oil level alarm switch 37.
The utility model discloses a theory of operation: through the YZF-90 meter body 1, the structure distribution of the YZF-90 meter body 1 is reasonable, the volume is small, and the problem that the common pointer type oil level gauge is too large in appearance and cannot be used in an electrical cabinet when the side face of an oil tank is installed can be solved.
Through the low oil level alarm switch 35 and the high oil level alarm switch 37 that set up, low oil level alarm switch 35 and high oil level alarm switch 37 are single-pole double-throw normally open normally closed contact, can effectually avoid the alarm switch of ordinary small-size oil level gaugember to use the tongue tube that only has normally open point usually, can't satisfy the requirement that the on-the-spot needs warning contact of user be single-pole double-throw or normally closed contact, make things convenient for the staff to use.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.
Claims (7)
1. A protective instrument taking oil level change as an electrical signal comprises a YZF-90 meter body (1), and is characterized in that: the YZF-90 meter body (1) is used for fixing a product on the side face of a transformer box body, a rear shaft support (16) is installed behind a flange of the YZF-90 meter body (1), a rear shaft (19) is arranged at the center of the rear shaft support (16), a rear shaft spacer sleeve (13) is sleeved on the excircle of the rear shaft (19), a rear shaft support fastening screw (15) is arranged on the outer wall of one side of the rear shaft support (16), an installation sealing ring (14) is arranged between the rear shaft support (16) and the rear shaft support fastening screw (15), a cylindrical magnet (11) is arranged on the outer wall of the front end of the rear shaft (19), a rear magnetic steel fixing block (12) is in threaded connection with the rear shaft (19), and the tip of the rear shaft (19) is located in a concave hole in the rear cavity of the YZF-90 meter body (1); a rear shaft rotation limiting screw (18) is fixedly connected in a thread of an excircle of a middle step of the rear shaft (19), two eccentric wheels (17) are fixedly connected on the outer end face of a rear shaft bracket (16) and used for limiting the rotation angles of the rear shaft (19) and the rotation limiting screw (18), a meter rod joint (38) is inserted in a transverse hole of the rear shaft (19) close to the top end and is fixed by a cotter pin, a meter rod joint fixing screw (21) is arranged on the outer wall of the meter rod joint (38), a meter rod joint fixing screw-locking nut (20) is arranged on one side of the meter rod joint fixing screw (21) to prevent vibration from falling off, a meter rod (22) is inserted in a meter rod joint (38) hole and is riveted by a rivet, the other end of the meter rod (22) penetrates through the center of a floating ball (23), and a front shaft (8) is installed at the center of a front cavity of the YZF-90 meter body (1), the tip of the lower end of the front shaft (8) is pressed against a concave hole in the center of a front cavity of the YZF-90 meter body (1), a cylindrical magnet (11) is arranged on the outer wall of the front shaft (8), a front magnetic steel fixing block (10) is in threaded connection with the outer wall of the front shaft (8), magnetic steel on the front shaft (8) and a rear shaft (19) form magnetic coupling transmission, a front shaft bracket (9) is fixed on a second-layer step of the front cavity of the YZF-90 meter body (1) from inside to outside, and the front shaft bracket (9) penetrates through the inner wall of the front shaft (8).
2. A protective instrument with oil level change as an electrical signal according to claim 1, characterized in that: the front axle support (9) outer wall fixedly connected with low oil level alarm switch (35) and high oil level alarm switch (37), on front magnet steel fixed block (10) with cylindrical magnet (11) two be the downthehole alarm switch trigger cam one (34) and alarm switch trigger cam two (36) of being right angle respectively, when YZF-90 oil level table needs high oil level and low oil level to report to the police, only install alarm switch trigger cam one (34), when YZF-90 oil level low oil level and ultralow oil level report to the police, need install alarm switch trigger cam one (34) and alarm switch trigger cam two (36).
3. A protective instrument with oil level change as an electrical signal according to claim 1, characterized in that: a YZF-90 dial (7) is arranged on the third step of the front cavity of the YZF-90 watch body (1) from inside to outside and fixed by screws, and the upper end of the front shaft (8) extending out of the YZF-90 dial (7) is fixedly connected with a YZF-90 watch hand (6).
4. A protective instrument using oil level change as an electrical signal according to claim 1, wherein: the oil level gauge is characterized in that a glass window-inner sealing ring (4) is installed on the end face of the YZF-90 gauge body (1), window glass (5) is pressed above the glass window-inner sealing ring (4), a glass window-outer sealing ring (3) is installed above the window glass (5), the outer wall of the YZF-90 gauge body (1) is in threaded connection with a glass window-pressing ring (2), and after the glass window-pressing ring (2) is pre-tightened, the inside of the YZF-90 oil level gauge is isolated from the external environment.
5. A protective instrument with oil level change as an electrical signal according to claim 1, characterized in that: an outlet box connecting threaded sleeve (30) is arranged on a platform on the lateral side of the YZF-90 meter body (1), an outlet box-box body (26) is connected to the outer wall of the outlet box connecting threaded sleeve (30), a front shaft support-locking screw (33) is arranged on the outer wall of one side of the outlet box-box body (26), an outlet box and a meter body sealing ring (32) are arranged between the front shaft support-locking screw (33) and the outlet box-box body (26), and an outlet box sealing ring (27) is arranged between the outlet box connecting threaded sleeve (30) and the outlet box-box body (26).
6. A protective instrument with oil level change as an electrical signal according to claim 5, characterized in that: an outlet box cover (29) is arranged above the outlet box-box body (26), an outlet box cover-locking screw (31) is fixedly connected to the outer wall of the outlet box cover (29), the outlet box cover-locking screw (31) is fixedly connected to the top of the outlet box-box body (26), an outlet box sealing ring (27) is installed between the box cover (29) and the outlet box cover-locking screw (31) and used for preventing water and dust, a gland head (24) is installed at the outlet of the outlet box-box body (26) and used for electric outlet, and a gland head sealing ring (25) is arranged between the outlet box-box body (26) and the gland head (24).
7. The protective instrument with oil level change as an electric signal according to claim 6, characterized in that: the outer wall of the outlet box-box body (26) is provided with a welding body of an insulating plate and a connecting terminal (28), and the lower end of the welding body of the insulating plate and the connecting terminal (28) is welded with a lead connected with a low oil level alarm switch (35) and a high oil level alarm switch (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220998059.4U CN217424500U (en) | 2022-04-28 | 2022-04-28 | Protective instrument using oil level change as electrical signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220998059.4U CN217424500U (en) | 2022-04-28 | 2022-04-28 | Protective instrument using oil level change as electrical signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217424500U true CN217424500U (en) | 2022-09-13 |
Family
ID=83184401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220998059.4U Active CN217424500U (en) | 2022-04-28 | 2022-04-28 | Protective instrument using oil level change as electrical signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217424500U (en) |
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2022
- 2022-04-28 CN CN202220998059.4U patent/CN217424500U/en active Active
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