CN113054578B - Block terminal sealed fuse-element changes device - Google Patents
Block terminal sealed fuse-element changes device Download PDFInfo
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- CN113054578B CN113054578B CN202110240201.9A CN202110240201A CN113054578B CN 113054578 B CN113054578 B CN 113054578B CN 202110240201 A CN202110240201 A CN 202110240201A CN 113054578 B CN113054578 B CN 113054578B
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- clamping
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- movably connected
- outer part
- fixed toothed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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Abstract
The invention relates to the technical field of electric power, and discloses a distribution box sealed fuse melt replacing device, which comprises a shell, wherein a ratchet rod is movably connected inside the shell, a pawl is movably connected outside the ratchet rod, a limiting block is hinged outside the pawl, a fixed spring is fixedly connected outside the limiting block, an electromagnet is movably connected outside the limiting block, a fixed toothed rod is fixedly connected outside the ratchet rod, a connecting gear is meshed outside the fixed toothed rod, a return spring is fixedly connected outside the fixed toothed rod, a clamping block is movably connected inside the fixed toothed rod, and the ratchet rod, the pawl, the limiting block, the fixed spring, the electromagnet, the fixed toothed rod, the connecting gear, the return spring and the clamping block are matched for use, so that the effect of effectively protecting a circuit is achieved, fully guarantee the circuit disconnection, effectively protect the safety of circuit.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a melt replacing device for a sealed fuse of a distribution box.
Background
The fuse melts the melt by the heat generated by the fuse after the current exceeds a specified value for a period of time, so as to cut off the circuit; the fuse protector made by applying the principle is widely applied to high-low voltage distribution systems, control systems and electric equipment, and is one of the most commonly applied protective devices as a short circuit and overcurrent protector.
However, current sealed fuse is when circuit fault, need lift off old or fuse-element, change new fuse-element, but, prior art's fuse is according to when changing the fuse-element, all need pull down bad fuse-element, change the new fuse-element of installation, complex operation, low efficiency, be unfavorable for practicing thrift the human cost, increase the burden of work, and current block terminal inside often is provided with a fuse-element, so need the block terminal to open once more when changing the fuse-element, the operation degree of difficulty has further been increased, and current block terminal inside is close to fuse-element fusing protection, nevertheless still there is the condition that can bond when often fuse-element fusing, thereby lead to the circuit protection insufficient, still there is the risk of circuit short circuit.
In order to solve the above problems, the inventor provides a device for replacing the fuse element of the sealed fuse of the distribution box, which has the advantages of thorough circuit protection, sufficient circuit disconnection, effective avoidance of possibility of circuit contact connection again, easy replacement, and simple operation.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a device for replacing a sealed fuse melt of a distribution box comprises a shell, a ratchet rod, a pawl, a limiting block, a fixing spring, an electromagnet, a fixing toothed bar, a connecting gear, a reset spring, a clamping block, a melt, a clamping bar, a clamping toothed bar, a positioning plate, a limiting rod, a rotating shaft, a grooved wheel, a driving lever and an adjusting rod.
The positions and the connection relations of the structures are as follows:
the inner part of the shell is movably connected with a ratchet rod, the outer part of the ratchet rod is movably connected with a pawl, the outer part of the pawl is hinged with a limiting block, the outer part of the limiting block is fixedly connected with a fixed spring, the outer part of the limiting block is movably connected with an electromagnet, the outer part of the ratchet rod is fixedly connected with a fixed toothed bar, the outer part of the fixed toothed bar is engaged and connected with a connecting gear, the outer part of the fixed toothed bar is fixedly connected with a reset spring, the inner part of the fixed toothed bar is movably connected with a clamping block, the outer part of the clamping block is clamped and connected with a melt, the outer part of the melt is movably connected with a clamping rod, the outer part of the clamping rod is movably connected with a clamping toothed bar, the outer part of the clamping toothed bar is movably connected with a positioning plate, the inner part of the positioning plate is movably connected with a limiting rod, the inner part of the positioning plate is fixedly connected with a rotating shaft, and the outer part of the rotating shaft is fixedly connected with a grooved pulley, the outer portion of the grooved wheel is movably connected with a shifting rod, and an adjusting rod is fixedly connected to the outer portion of the shifting rod.
Preferably, a limiting spring is arranged between the limiting block and the pawl, the outer ring of the limiting block is designed to be a permanent magnet, and the permanent magnet is movably connected with the electromagnet.
Preferably, the electromagnet is fixedly connected inside the shell, and the electromagnet is connected with the permanent magnet in an opposite polarity mode. The electromagnet is electrically connected with the main circuit.
Preferably, fixed ratchets and reset spring all are provided with two, and two equal sliding connection of fixed ratchets are in the inside of casing, and two fixed ratchets mesh respectively and connect in the both sides of connecting the gear, and two reset spring's both ends respectively with fixed ratchets, casing fixed connection.
Preferably, the two clamping blocks are movably connected with the two fixed toothed bars respectively, clamping springs are arranged between the two clamping blocks and the fixed toothed bars respectively, and the two clamping blocks are connected to two ends of the melt in a clamping mode respectively.
Preferably, the clamping rods and the clamping rack bar are respectively provided with six groups, the clamping gears are arranged outside the clamping rods, each group of clamping rods is respectively provided with two clamping gears, the clamping gears arranged on the two clamping rods in each group are respectively meshed and connected with two sides of the clamping rack bar, and the clamping rods and the clamping rack bar are movably connected inside the positioning plate.
Preferably, the sheave is provided with six rotary chutes.
Advantageous effects
Compared with the prior art, the invention provides a distribution box sealed fuse melt replacing device, which has the following beneficial effects:
1. this distribution box sealed fuse-element changes device uses through the cooperation of ratchet pole, pawl, stopper, fixed spring, electro-magnet, fixed rack bar, connecting gear, reset spring and the tight piece of clamp to reach effective protection circuit's effect, and when the fuse-element fusing, fully guarantee circuit disconnection, effective protection circuit's safety.
2. This distribution box sealed fuse-element changes device uses through the cooperation that presss from both sides tight pole, presss from both sides tight ratch, locating plate and gag lever post to dispose a plurality of fuse-elements in distribution box inside, and the fuse-element is fixed firm, the fixed easy operation of fuse-element, and the fuse-element change easy operation avoids operating personnel direct contact to change, effectively improves the efficiency of changing, reduces the danger of changing the fuse-element.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the connection of a part A of the ratchet rod, the pawl, the limiting block, the fixing spring and the electromagnet in FIG. 1;
FIG. 3 is a schematic top view of the structure of the present invention showing the connection of the melt, the clamping rod, the clamping rack, the positioning plate and the limiting rod;
FIG. 4 is an enlarged view of the connection of the clamping rack bar, the positioning plate and the stop lever in part B of the structure of FIG. 1;
FIG. 5 is an enlarged view of the connection of the rotating shaft, the grooved pulley, the deflector rod and the adjusting rod according to the structure of the present invention.
In the figure: 1. a housing; 2. a ratchet rod; 3. a pawl; 4. a limiting block; 5. fixing the spring; 6. an electromagnet; 7. a fixed rack bar; 8. a connecting gear; 9. a return spring; 10. a clamping block; 11. melting the materials; 12. a clamping lever; 13. clamping the rack bar; 14. positioning a plate; 15. a limiting rod; 16. a rotating shaft; 17. a grooved wheel; 18. a deflector rod; 19. and adjusting the rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a device for replacing a sealed fuse element of a distribution box includes a housing 1, a ratchet rod 2, a pawl 3, a limiting block 4, a fixing spring 5, an electromagnet 6, a fixing rack 7, a connecting gear 8, a return spring 9, a clamping block 10, a fuse element 11, a clamping rod 12, a clamping rack 13, a positioning plate 14, a limiting rod 15, a rotating shaft 16, a sheave 17, a shift lever 18, and an adjusting rod 19.
The positions and the connection relations of the structures are as follows:
the inner part of the shell 1 is movably connected with a ratchet rod 2, the outer part of the ratchet rod 2 is movably connected with a pawl 3, the outer part of the pawl 3 is hinged with a limiting block 4, the outer part of the limiting block 4 is fixedly connected with a fixed spring 5, the outer part of the limiting block 4 is movably connected with an electromagnet 6, the outer part of the ratchet rod 2 is fixedly connected with a fixed toothed rod 7, the outer part of the fixed toothed rod 7 is meshed with a connecting gear 8, the outer part of the fixed toothed rod 7 is fixedly connected with a reset spring 9, the inner part of the fixed toothed rod 7 is movably connected with a clamping block 10, the outer part of the clamping block 10 is connected with a melt 11 in a clamping way, the outer part of the melt 11 is movably connected with a clamping rod 12, the outer part of the clamping rod 12 is movably connected with a clamping toothed rod 13, the outer part of the clamping toothed rod 13 is movably connected with a positioning plate 14, the inner part of the positioning plate 14 is movably connected with a limiting rod 15, the inner part of the positioning plate 14 is fixedly connected with a rotating shaft 16, and the outer part of the rotating shaft 16 is fixedly connected with a grooved wheel 17, the outer part of the grooved wheel 17 is movably connected with a deflector rod 18, and the outer part of the deflector rod 18 is fixedly connected with an adjusting rod 19.
a, a limiting spring is arranged between the limiting block 4 and the pawl 3, the outer ring of the limiting block 4 is designed to be a permanent magnet, and the permanent magnet is movably connected with the electromagnet 6.
And b, the electromagnet 6 is fixedly connected inside the shell 1, and the electromagnet 6 is connected with the permanent magnet in an opposite polarity mode. The electromagnet 6 is electrically connected with the main circuit.
c, two fixed toothed bars 7 and two return springs 9 are arranged, the two fixed toothed bars 7 are connected inside the shell 1 in a sliding mode, the two fixed toothed bars 7 are connected to two sides of the connecting gear 8 in a meshed mode respectively, and two ends of the two return springs 9 are fixedly connected with the fixed toothed bars 7 and the shell 1 respectively.
d, two clamping blocks 10 are arranged, the two clamping blocks 10 are movably connected with the two fixed toothed bars 7 respectively, clamping springs are arranged between the two clamping blocks 10 and the fixed toothed bars 7, and the two clamping blocks 10 are connected to two ends of the melt 11 in a clamping mode respectively.
f, six groups of clamping rods 12 and six groups of clamping toothed bars 13 are respectively arranged, clamping gears are arranged outside the clamping rods 12, two clamping rods 12 are respectively arranged, the clamping gears arranged on the two clamping rods 12 are respectively connected to two sides of the clamping toothed bar 13 in a meshed mode, and the clamping rods 12 and the clamping toothed bar 13 are both movably connected to the inside of the positioning plate 14.
g, the sheave 17 is provided with six rotary chutes.
The working process and principle are that when the melt 11 is fused in work, because the limiting spring is arranged between the limiting block 4 and the pawl 3, the outer ring of the limiting block 4 is designed to be a permanent magnet and is movably connected with the electromagnet 6, the limiting block 4 is movably connected inside the shell 1, the electromagnet 6 is fixedly connected inside the shell 1, and the electromagnet 6 is connected with the permanent magnet in an opposite-polarity mode. The electromagnet 6 is electrically connected with the main circuit, two fixed toothed bars 7 and two reset springs 9 are arranged, two fixed toothed bars 7 are slidably connected inside the shell 1, the two fixed toothed bars 7 are respectively connected with two sides of the connecting gear 8 in a meshed mode, two ends of each reset spring 9 are respectively fixedly connected with the fixed toothed bars 7 and the shell 1, one fixed toothed bar 7 is fixedly connected with the ratchet bar 2, two clamping blocks 10 are arranged, the two clamping blocks 10 are respectively movably connected with the two fixed toothed bars 7, clamping springs are arranged between the two clamping blocks 10 and the fixed toothed bars 7, the two clamping blocks 10 are respectively connected with two ends of the melt 11 in a clamped mode, when the melt 11 is fused, the circuit is disconnected, the electromagnet 6 loses magnetism, the limiting block 4 slides towards the inside of the shell 1 under the action of the fixed springs 5, the ratchet 3 is disconnected with the ratchet bar 2, and the fixed toothed bars 7 move under the action of the reset springs 9, the two fixed toothed bars 7 drive the two clamping blocks 10 to move away from the melt 11, so that the circuit is effectively ensured to be fully disconnected, and the safety of the circuit is effectively protected.
Because the melt 11 is movably connected with the positioning plate 14, the positioning plate 14 is fixedly connected with the rotating shaft 16, the rotating shaft 16 is fixedly connected with the grooved pulley 17, the grooved pulley 17 is movably connected with the shift lever 18, and the shift lever 18 is fixedly connected with the adjusting rod 19, when the adjustment rod 19 is rotated, the adjusting rod 19 drives the shift lever 18 to rotate, the shift lever 18 drives the grooved pulley 17 to rotate, the grooved pulley 17 drives the rotating shaft 16 to rotate, the rotating shaft 16 drives the positioning plate 14 to rotate, the positioning plate 14 drives the new melt 11 to reach a fixed position, and simultaneously the ratchet rod 2 is pressed down, so that the ratchet rod 2 pushes the fixed toothed rod 7, and the fixed toothed rod 7 drives the other fixed toothed rod 7 to reversely slide through the connecting gear 8, so that the two fixed toothed rods 7 clamp the melt 11 through the clamping block 10, and the electromagnet 6 is electrified to generate magnetism, the electromagnet 6 adsorbs the limiting block 4, the limiting block 4 drives the pawl 3 to move, so that the pawl 3 limits the position of the ratchet rod 2, thereby guarantee the stability of fixed ratch 7 and the tight piece 10 of clamp, and through continuing to push down ratchet rod 2, further guarantee circuit connection's stability to reach and change easily, the operation safety, the stable effect of circuit connection.
Meanwhile, when the melt 11 needs to be arranged in the positioning plate 14, the melt 11 is clamped between the clamping toothed bar 13 and the clamping bar 12, because the clamping rods 12 and the clamping toothed bars 13 are respectively provided with six groups, the clamping gears are arranged outside the clamping rods 12, two clamping rods 12 are respectively arranged in each group, and the clamping gears arranged on each group of two clamping rods 12 are respectively meshed and connected with the two sides of the clamping toothed bar 13, the clamping rod 12 and the clamping toothed bar 13 are movably connected inside the positioning plate 14, the positioning plate 14 is movably connected inside the limiting rod 15, the limiting rod 15 is movably connected with the clamping toothed bar 13, therefore, the melt 11 is pushed, the melt 11 pushes the clamping toothed bar 13, the clamping toothed bar 13 drives the clamping bar 12 to rotate, so that the clamping bar 12 and the clamping toothed bar 13 clamp and fix the melt 11 together, meanwhile, the clamping toothed bar 13 is connected with the limiting rod 15 in an inserting mode, and the stability of fixing the melt 11 is effectively guaranteed.
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 (3)
1. The utility model provides a block terminal sealed fuse-element is changed device, includes casing (1), its characterized in that: the inner part of the shell (1) is movably connected with a ratchet rod (2), the outer part of the ratchet rod (2) is movably connected with a pawl (3), the outer part of the pawl (3) is hinged with a limiting block (4), the outer part of the limiting block (4) is fixedly connected with a fixed spring (5), the outer part of the limiting block (4) is movably connected with an electromagnet (6), the outer part of the ratchet rod (2) is fixedly connected with a fixed toothed rod (7), the outer part of the fixed toothed rod (7) is engaged with a connecting gear (8), the outer part of the fixed toothed rod (7) is fixedly connected with a reset spring (9), the inner part of the fixed toothed rod (7) is movably connected with a clamping block (10), the outer part of the clamping block (10) is clamped and connected with a melt (11), the outer part of the melt (11) is movably connected with a clamping rod (12), and the outer part of the clamping rod (12) is movably connected with a clamping toothed rod (13), a positioning plate (14) is movably connected to the outer part of the clamping rack (13), a limiting rod (15) is movably connected to the inner part of the positioning plate (14), a rotating shaft (16) is fixedly connected to the inner part of the positioning plate (14), a grooved pulley (17) is fixedly connected to the outer part of the rotating shaft (16), a shift lever (18) is movably connected to the outer part of the grooved pulley (17), and an adjusting rod (19) is fixedly connected to the outer part of the shift lever (18);
a limiting spring is arranged between the limiting block (4) and the pawl (3), the outer ring of the limiting block (4) is designed to be a permanent magnet, and the permanent magnet is movably connected with the electromagnet (6);
the electromagnet (6) is fixedly connected inside the shell (1), the electromagnet (6) is in anisotropic connection with the permanent magnet, and the electromagnet (6) is electrically connected with the main circuit;
the two fixed toothed bars (7) and the two reset springs (9) are arranged, the two fixed toothed bars (7) are connected inside the shell (1) in a sliding mode, the two fixed toothed bars (7) are respectively connected to two sides of the connecting gear (8) in a meshed mode, and two ends of the two reset springs (9) are respectively fixedly connected with the fixed toothed bars (7) and the shell (1);
the two clamping blocks (10) are respectively movably connected with the two fixed toothed bars (7), clamping springs are respectively arranged between the two clamping blocks (10) and the fixed toothed bars (7), and the two clamping blocks (10) are respectively connected with two ends of the melt (11) in a clamping manner;
when the melt (11) is fused, the circuit is disconnected, the electromagnet (6) loses magnetism, the limiting block (4) slides towards the inside of the shell (1) under the action of the fixing spring (5), so that the pawl (3) and the ratchet rod (2) are disconnected, the fixing toothed rods (7) move under the action of the reset spring (9), and the two fixing toothed rods (7) drive the two clamping blocks (10) to move away from the melt (11);
when the melt (11) is replaced, the adjusting rod (19) is rotated, the adjusting rod (19) drives the shifting rod (18) to rotate, the shifting rod (18) drives the grooved pulley (17) to rotate, the grooved pulley (17) drives the rotating shaft (16) to rotate, the rotating shaft (16) drives the positioning plate (14) to rotate, the positioning plate (14) drives a new melt (11) to reach a fixed position, meanwhile, the ratchet rod (2) is pressed down, so that the fixed toothed rod (7) is pushed by the ratchet rod (2), and the fixed toothed bar (7) drives the other fixed toothed bar (7) to slide reversely through the connecting gear (8), so that the two fixed toothed bars (7) clamp the melt (11) through the clamping blocks (10), and at the moment, the electromagnet (6) is electrified to generate magnetism, the electromagnet (6) adsorbs the limiting block (4), and the limiting block (4) drives the pawl (3) to move, so that the pawl (3) limits the position of the ratchet rod (2), and the stability of the fixed toothed bar (7) and the clamping block (10) is ensured.
2. The fuse melt changer of claim 1, wherein: six groups of clamping rods (12) and six groups of clamping toothed bars (13) are respectively arranged, clamping gears are arranged outside the clamping rods (12), two clamping rods (12) are respectively arranged in each group, the clamping gears arranged on the two clamping rods (12) in each group are respectively meshed and connected to two sides of the clamping toothed bars (13), and the clamping rods (12) and the clamping toothed bars (13) are movably connected to the inner portion of the positioning plate (14).
3. The fuse melt changer of claim 1, wherein: the grooved wheel (17) is provided with six rotating sliding grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110240201.9A CN113054578B (en) | 2021-03-04 | 2021-03-04 | Block terminal sealed fuse-element changes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110240201.9A CN113054578B (en) | 2021-03-04 | 2021-03-04 | Block terminal sealed fuse-element changes device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113054578A CN113054578A (en) | 2021-06-29 |
| CN113054578B true CN113054578B (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110240201.9A Active CN113054578B (en) | 2021-03-04 | 2021-03-04 | Block terminal sealed fuse-element changes device |
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| CN (1) | CN113054578B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792614B (en) * | 2022-06-24 | 2022-09-20 | 南通世睿智能设备有限公司 | Intelligent short-circuit protection device for electric distribution box and use method of intelligent short-circuit protection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4492945A (en) * | 1982-09-21 | 1985-01-08 | Jou W F | Safety socket with easy fuse replacement device |
| US5355111A (en) * | 1992-09-17 | 1994-10-11 | Cooper Power Systems, Inc. | Nested contact and cap assembly for fuseholder |
| CN108648973A (en) * | 2018-08-06 | 2018-10-12 | 石卫祥 | A kind of open fuse being easily changed fusible core |
| CN108766852A (en) * | 2018-08-06 | 2018-11-06 | 芜湖市凯鑫避雷器有限责任公司 | It is a kind of can convenient changing high-tension fuse |
| CN111341617A (en) * | 2020-04-21 | 2020-06-26 | 国网安徽省电力有限公司铜陵市义安区供电公司 | Block terminal sealed fuse solution changes device |
| CN111740316A (en) * | 2020-07-10 | 2020-10-02 | 李翠霞 | Automatic device of changing of block terminal sealed fuse-element |
-
2021
- 2021-03-04 CN CN202110240201.9A patent/CN113054578B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4492945A (en) * | 1982-09-21 | 1985-01-08 | Jou W F | Safety socket with easy fuse replacement device |
| US5355111A (en) * | 1992-09-17 | 1994-10-11 | Cooper Power Systems, Inc. | Nested contact and cap assembly for fuseholder |
| CN108648973A (en) * | 2018-08-06 | 2018-10-12 | 石卫祥 | A kind of open fuse being easily changed fusible core |
| CN108766852A (en) * | 2018-08-06 | 2018-11-06 | 芜湖市凯鑫避雷器有限责任公司 | It is a kind of can convenient changing high-tension fuse |
| CN111341617A (en) * | 2020-04-21 | 2020-06-26 | 国网安徽省电力有限公司铜陵市义安区供电公司 | Block terminal sealed fuse solution changes device |
| CN111740316A (en) * | 2020-07-10 | 2020-10-02 | 李翠霞 | Automatic device of changing of block terminal sealed fuse-element |
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| CN113054578A (en) | 2021-06-29 |
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Effective date of registration: 20220526 Address after: 400000 communities 2, 3 and 4, citizen village, Baqiao Town, Dadukou District, Chongqing Applicant after: CHONGQING HUAMEI ELECTRIC POWER EQUIPMENT CO.,LTD. Address before: 511100 No.75, Fengcheng Avenue West, Xinfeng County, Shaoguan City, Guangdong Province Applicant before: Pan Qingmei |
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