CN212570878U - Transformer power-off protection device - Google Patents
Transformer power-off protection device Download PDFInfo
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- CN212570878U CN212570878U CN202021180893.XU CN202021180893U CN212570878U CN 212570878 U CN212570878 U CN 212570878U CN 202021180893 U CN202021180893 U CN 202021180893U CN 212570878 U CN212570878 U CN 212570878U
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Abstract
The utility model belongs to the technical field of the power-off protection device technique and specifically relates to a transformer power-off protection device, which comprises a housin, heat abstractor is installed on casing left side upper portion, surface mounting has the down tube under the casing inner chamber, down tube right-hand member movable mounting has the latch hook, and casing inner chamber left and right sides lower part all is equipped with the spout, be equipped with the slider in the spout, install the slide bar between the slider, the slide bar outside activity is run through and is installed the sliding sleeve, surface mounting has elevating gear on the sliding sleeve, the mounting panel is installed to casing right side lower part, surface mounting has the pull rod on the mounting panel left side movable mounting, the arc rack is installed on pull rod left side upper portion, casing right side mid-. The utility model discloses can be convenient for confirm circuit disconnection and closed state, conveniently open and stop the circuit, and can dispel the heat to the device is inside, increased device life, improved the work efficiency of device.
Description
Technical Field
The utility model relates to a power-off protection device technical field especially relates to a transformer power-off protection device.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and with the pace acceleration of urban and rural power grid construction, the generated energy and the power consumption of China are increased day by day, so that the application of the transformer is more and more extensive, the transformer is pulled by power grid construction investment, the transformer industry has higher popularity, and a power-off protection device is required in the installation process of the transformer.
What have often used at present to transformer power-off protection is thermal relay, and thermal relay can realize the overload protection to electrical equipment, and its is small, with low costs and simple structure, but current thermal relay circuit on-off state is not obvious when carrying out power-off protection to the transformer, and the transformer chamber need be opened to the reentry is operated the relay, and because of the transformer production heat is great, the heat that produces after the circuit outage burns out the relay easily when transshipping. Therefore, a transformer power-off protection device is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the transformer power-off protection device who provides makes it be convenient for open and close, and long service life.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a transformer power-off protection device is designed, and comprises a shell, wherein a fixed plate is installed in the middle of the left side of an inner cavity of the shell, a static contact is installed on the right side of the lower surface of the fixed plate, an elastic plate is installed in the middle of the left side of the inner cavity of the shell, a moving contact is installed on the upper surface of the elastic plate, a heat dissipation device is installed on the upper portion of the left side of the shell, a thermal relay is installed on the lower surface of the inner cavity of the shell, a thermal relay switch is installed on the left side of the thermal relay, an inclined rod is installed on the lower surface of the inner cavity of the shell, a lock hook is movably installed at the right end of the inclined rod, sliding grooves are formed in the lower portions of the left side and the right side, the improved lifting device is characterized in that a first through hole is formed in the right side of the shell, a mounting plate is mounted at the lower portion of the right side of the shell, a pull rod is movably mounted on the left side of the upper surface of the mounting plate, an arc-shaped rack is mounted on the upper portion of the left side of the pull rod and is located inside the first through hole, the arc-shaped rack is meshed with the lifting device, an insulating handle is mounted at the top of the pull rod, two sector plates are mounted in the middle of the right side of the shell, arc-shaped limiting holes are formed in the sector plates, second fixing blocks are mounted on the front side and the rear side of the middle of the pull rod and located inside the arc-shaped limiting holes, a second limiting plate is mounted on one side of each second fixing block, a spring is mounted at the lower portion of the right side of the pull rod, the lock catch is matched with the lock hook.
Preferably, the upper surface of the shell is provided with two vent holes, and a dust screen is arranged in each vent hole.
Preferably, the heat dissipation device comprises an air blower mounted on the upper portion of the left side of the shell, a ventilation pipe is mounted at an air outlet of the air blower, the ventilation pipe penetrates through the upper portion of the left side of the shell, and the air blower, the static contact and the moving contact are connected through a conducting wire.
Preferably, the whole latch hook is L-shaped, and the right end of the latch hook is hook-shaped.
Preferably, the left end of the sliding rod is provided with a touch rod, and the touch rod is matched with the elastic plate.
Preferably, elevating gear is including installing the lifter plate at the sliding bush upper surface, the inside spacing hole that is equipped with of lifter plate, elevating gear still includes the pivot of movable mounting at casing inner chamber rear side, the gear is installed to the pivot other end, first fixed block is installed to gear one side, first fixed block is located spacing downthehole, first stopper is installed to first fixed block one side, gear and arc rack toothing.
The utility model provides a pair of transformer power-off protection device, beneficial effect lies in: the utility model is convenient for heat dissipation in the shell by arranging the vent hole and the dust screen, can prevent dust from falling into the device, can protect the device, prolong the service life of the device, can discharge hot gas in the device by contacting the static contact and the moving contact through the contact rod when the thermal relay switch is popped out after power failure through the mutual matching of the air blower, the vent pipe, the static contact, the moving contact, the latch hook, the push rod, the slider, the slide rod and the contact rod, opens the air blower, protects the device, prolong the service life of the device, and can conveniently indicate power failure by the mutual matching of the latch hook, the latch, the pull rod, the spring, the arc-shaped rack, the gear, the first fixed block, the first limit block, the lifting plate, the slide sleeve, the slide rod, the slider and the push rod when the thermal relay switch is popped out, the pull rod rotates rightwards, thereby facilitating the resetting of the, the working efficiency is improved, and the safety of a user is ensured.
Drawings
Fig. 1 is a schematic view of a sectional structure of a front view of a transformer power-off protection device provided by the present invention;
fig. 2 is a schematic diagram of a top view cross-sectional structure of a transformer power-off protection device provided by the present invention;
fig. 3 is a schematic structural view of a connection mode between a lock catch and a pull rod of the transformer power-off protection device provided by the present invention;
fig. 4 is a schematic side view of a transformer power-off protection device according to the present invention;
fig. 5 is a schematic structural view of a transformer power-off protection device a provided by the present invention;
fig. 6 is a schematic structural view of a transformer power-off protection device B according to the present invention;
fig. 7 is the utility model provides a transformer power-off protection device C schematic structure.
In the figure: the device comprises a shell 1, an air blower 2, a vent pipe 3, an abutting rod 4, a sliding chute 5, a sliding rod 6, a push rod 7, an inclined rod 8, a locking hook 9, a thermal relay switch 10, a thermal relay 11, a mounting plate 12, a spring 13, a pull rod 14, a sector plate 15, an arc-shaped limiting hole 16, a limiting hole 17, an arc-shaped rack 18, a first through hole 19, an insulating handle 20, a vent hole 21, a dust screen 22, a sliding sleeve 23, a lock catch 24, a fixing plate 25, an elastic plate 26, a static contact 27, a movable contact 28, a gear 29, a first fixing block 30, a lifting plate 31, a first limiting block 32, a second fixing block 33, a second limiting plate 34, a rotating shaft 35, a sliding.
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.
Referring to fig. 1-7, a transformer power-off protection device comprises a shell 1, wherein two air vents 21 are formed in the upper surface of the shell 1, and a dust screen 22 is arranged in each air vent 21, so that heat dissipation is facilitated in the device, dust can be prevented, the device can be protected, and the service life of the device is prolonged.
There is fixed plate 25 left side mid-mounting in the casing 1 inner chamber, static contact 27 is installed on fixed plate 25 lower surface right side, 1 inner chamber left side mid-mounting elastic plate 26 of casing, surface mounting has moving contact 28 on the elastic plate, heat abstractor is installed on 1 left side upper portion of casing, heat abstractor is including installing air-blower 2 on 1 left side upper portion of casing, ventilation pipe 3 is installed to air-blower 2 air outlet, ventilation pipe 3 runs through 1 left side upper portion of casing, air-blower 2, static contact 27, connect through the wire between the moving contact 28, after cutting off the power supply to the transformer, dispel the heat to the device, prevent the.
The lower surface of the inner cavity of the shell 1 is provided with a thermal relay 11, the thermal relay switch 10 is installed on the left side of the thermal relay 11, the lower surface of the inner cavity of the shell 1 is provided with a diagonal bar 8, the right end of the diagonal bar 8 is movably provided with a lock hook 9, the lock hook 9 is integrally L-shaped, the right end of the lock hook 9 is hook-shaped, and the structure of the lock hook 9 can be conveniently fixed on a lock catch 24 and is convenient to cooperate with the thermal relay switch 11.
The lower part of the left side and the right side of the inner cavity of the shell 1 is provided with a sliding groove 5, a sliding block 36 is arranged in the sliding groove 5, a push rod 7 is installed on the right side of the sliding block 36 on the left side, the other end of the push rod 7 is movably connected with a locking hook 9, a sliding rod 6 is installed between the sliding blocks 36, a touch rod 4 is installed at the left end of the sliding rod 6, the touch rod 4 is matched with an elastic plate 26, a switch of the heat dissipation device is conveniently opened after.
The right side of the shell 1 is provided with a first through hole 19, the lower part of the right side of the shell 1 is provided with a mounting plate 12, the left side of the upper surface of the mounting plate 12 is movably provided with a pull rod 14, the upper part of the left side of the pull rod 14 is provided with an arc-shaped rack 18, the arc-shaped rack 18 is positioned in the first through hole 19, the arc-shaped rack 18 is meshed with a lifting device, the top of the pull rod 14 is provided with an insulating handle 20, the middle part of the right side of the shell 1 is provided with two sector plates 15, the inside of the sector plates 15 is provided with an arc-shaped limiting hole 16, the front side and the rear side of the middle part of the pull rod 14 are respectively provided with a second fixing block 33, the second fixing block 33 is positioned in the arc-shaped limiting hole 16, one side of the second fixing block 33 is provided with a second limiting plate 34, the shackle 24 cooperates with the shackle 9.
The working principle is as follows: the utility model discloses at work, at first connect thermorelay 11 with wire for the transformer, install the device in the transformer chamber near transformer position, thermorelay 11 cuts off the power supply when the circuit transships, thermorelay switch 10 pops out, conflict latch hook 9 rotates to the left, make latch hook 9 separate with hasp 24, pull rod 14 rotates to the right under the effect of spring 13 at this moment, arc rack 18 rotates to the right at this moment, drive gear 29 and rotate, make first fixed block 30 rotate and rise, drive lifter plate 31 and move upwards, make sliding sleeve 23 move upwards, drive slide bar 6 and move upwards, make conflict pole 4 conflict elastic plate 26, make elastic plate 26 rotate upwards, make static contact 27 and moving contact 28 contact, make air-blower 2 open, dispel the heat to the inside of the device, when needing to close the circuit, the staff only need hold insulating handle 20, rotate pull rod 14 to the left, make slide bar 6 descend, the slider 36 is driven to move downwards, the push rod 7 is driven to move downwards and rotate, and the lower end of the latch hook 9 abuts against the thermal relay switch 10 to close the circuit.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A transformer power-off protection device comprises a shell (1) and is characterized in that a fixed plate (25) is installed at the left middle of an inner cavity of the shell (1), a fixed contact (27) is installed at the right side of the lower surface of the fixed plate (25), an elastic plate (26) is installed at the left middle of the inner cavity of the shell (1), a moving contact (28) is installed on the upper surface of the elastic plate, a heat dissipation device is installed at the upper portion of the left side of the shell (1), a thermal relay (11) is installed at the lower surface of the inner cavity of the shell (1), a thermal relay switch (10) is installed at the left side of the thermal relay (11), an inclined rod (8) is installed at the lower surface of the inner cavity of the shell (1), a lock hook (9) is movably installed at the right end of the inclined rod (, left side push rod (7) are installed on slider (36) right side, push rod (7) other end and latch hook (9) swing joint, install slide bar (6) between slider (36), slide bar (6) outside activity runs through installs sliding sleeve (23), surface mounting has elevating gear on sliding sleeve (23), casing (1) right side is equipped with first through-hole (19), mounting panel (12) are installed to casing (1) right side lower part, mounting panel (12) upper surface left side movable mounting has pull rod (14), arc rack (18) are installed to pull rod (14) left side upper portion, arc rack (18) are located inside first through-hole (19), arc rack (18) and elevating gear mesh, insulating handle (20) are installed at pull rod (14) top, casing (1) right side mid-mounting has two sector plates (15), fan-shaped plate (15) inside is equipped with spacing hole of arc (16), second fixed block (33) are all installed to both sides around pull rod (14) middle part, second fixed block (33) are located inside spacing hole of arc (16), second limiting plate (34) are installed to second fixed block (33) one side, spring (13) are installed to pull rod (14) right side lower part, spring (13) other end is installed on mounting panel (12) upper surface right side, casing (1) right side lower part is equipped with second through-hole (37), hasp (24) are installed to pull rod (14) left side lower part, hasp (24) are located inside second through-hole (37), hasp (24) cooperate with latch hook (9).
2. The transformer power-off protection device according to claim 1, wherein the upper surface of the housing (1) is provided with two vent holes (21), and a dust screen (22) is installed inside the vent holes (21).
3. The transformer power-off protection device according to claim 1, wherein the heat dissipation device comprises an air blower (2) installed at the upper portion of the left side of the housing (1), an air outlet of the air blower (2) is provided with a ventilation pipe (3), the ventilation pipe (3) penetrates through the upper portion of the left side of the housing (1), and the air blower (2), the static contact (27) and the movable contact (28) are connected through a wire.
4. The transformer power-off protection device according to claim 1, wherein the latch hook (9) is L-shaped as a whole, and the right end of the latch hook (9) is hook-shaped.
5. The transformer power-off protection device according to claim 1, wherein the left end of the sliding rod (6) is provided with a contact rod (4), and the contact rod (4) is matched with the elastic plate (26).
6. The transformer power-off protection device according to claim 1, wherein the lifting device comprises a lifting plate (31) installed on the upper surface of a sliding sleeve (23), a limiting hole (17) is formed in the lifting plate (31), the lifting device further comprises a rotating shaft (35) movably installed on the rear side of an inner cavity of the shell (1), a gear (29) is installed at the other end of the rotating shaft (35), a first fixing block (30) is installed on one side of the gear (29), the first fixing block (30) is located in the limiting hole (17), a first limiting block (32) is installed on one side of the first fixing block (30), and the gear (29) is meshed with the arc-shaped rack (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021180893.XU CN212570878U (en) | 2020-06-23 | 2020-06-23 | Transformer power-off protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021180893.XU CN212570878U (en) | 2020-06-23 | 2020-06-23 | Transformer power-off protection device |
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| Publication Number | Publication Date |
|---|---|
| CN212570878U true CN212570878U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021180893.XU Active CN212570878U (en) | 2020-06-23 | 2020-06-23 | Transformer power-off protection device |
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| CN (1) | CN212570878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097021A (en) * | 2021-03-04 | 2021-07-09 | 邵晓东 | High-voltage circuit breaker switch with fireproof power-off function |
-
2020
- 2020-06-23 CN CN202021180893.XU patent/CN212570878U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097021A (en) * | 2021-03-04 | 2021-07-09 | 邵晓东 | High-voltage circuit breaker switch with fireproof power-off function |
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