CN214956677U - Low-voltage circuit breaker with protection architecture - Google Patents
Low-voltage circuit breaker with protection architecture Download PDFInfo
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- CN214956677U CN214956677U CN202121468392.6U CN202121468392U CN214956677U CN 214956677 U CN214956677 U CN 214956677U CN 202121468392 U CN202121468392 U CN 202121468392U CN 214956677 U CN214956677 U CN 214956677U
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Abstract
The utility model discloses a low-voltage circuit breaker with protection architecture, including the circuit breaker case, the screw thread seat, add the long bolt, safety cover and last arc semi-ring, install the safety cover on the outer wall of circuit breaker case, the inside operating handle that is equipped with of circuit breaker incasement portion of safety cover one side, and the one end of operating handle extends to the outside of circuit breaker case, the safety cover internally mounted of circuit breaker case top has the screw thread seat, the inside of screw thread seat is equipped with adding the long bolt, and the both ends of adding the long bolt all extend to the outside of screw thread seat, the handle is installed on the top of adding the long bolt, the tight piece of clamp is installed to the long bolt bottom of handle below, and the top and the long bolt swing joint of the tight piece of clamp, install the lead screw cover on the outer wall of circuit breaker case. The utility model discloses not only realized the convenient protection of low voltage circuit breaker, prevented that outside object from destroying low voltage circuit breaker, made things convenient for low voltage circuit breaker to dismantle moreover and changed.
Description
Technical Field
The utility model relates to a low-voltage circuit breaker technical field specifically is a low-voltage circuit breaker with protection architecture.
Background
The low-voltage circuit breaker is also called automatic air switch or automatic air circuit breaker, short for circuit breaker, it is an electrical apparatus that not only has manual switching function, but also can automatically implement voltage-loss, undervoltage, overload and short-circuit protection, it can be used for distributing electric energy, does not frequently start asynchronous motor, implement protection for power supply circuit and motor, etc., when they have serious overload or short-circuit and undervoltage faults, it can automatically cut off circuit, its function is equivalent to combination of fuse type switch and over-under-heat relay, etc., and after breaking fault current, it does not need to change parts, it has obtained extensive application, the contact types of the commonly used circuit breaker are butt-joint contact, bridge type contact and plug-in contact, the butt-joint type and bridge type contacts are mostly surface contact or line contact, the silver-based alloy insert block is welded on the contact, the large-scale circuit breaker except main contact, the low-voltage circuit breaker is characterized by further comprising an auxiliary contact and an arc contact, when the low-voltage circuit breaker is selected, the use type is selected according to specific use conditions, parameters such as rated working voltage, rated current, trip setting current, voltage and current of shunt release and undervoltage trip release are selected, the protection characteristic is selected according to a protection characteristic curve provided by a product sample, the short-circuit characteristic and the sensitivity coefficient need to be checked, and when the low-voltage circuit breaker meets the matching requirement with another circuit breaker or other protection electric appliances, the selective circuit breaker is selected.
This type of low-voltage circuit breaker on the market is various today, can satisfy people's user demand basically, but still has certain problem, and the protection that is convenient that generally is not convenient when using of current this type of low-voltage circuit breaker, low-voltage circuit breaker very easily receive outside collision and damage, great influence the reliability when low-voltage circuit breaker uses, the use of giving people has brought very big inconvenience.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low voltage circuit breaker with protection architecture to provide the problem of the convenient protection of being not convenient for of low voltage circuit breaker in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a low-voltage circuit breaker with protection architecture, includes circuit breaker case, screw thread seat, extension bolt, safety cover and last arc semi-ring, install the safety cover on the outer wall of circuit breaker case, the inside handle that is equipped with of circuit breaker case of safety cover one side, and the one end of handle extends to the outside of circuit breaker case, the safety cover internally mounted of circuit breaker case top has the screw thread seat, the inside of screw thread seat is equipped with extension bolt, and the both ends of extension bolt all extend to the outside of screw thread seat, the handle is installed on the top of extension bolt, tight piece is pressed from both sides to the extension bolt bottom of handle below, and presss from both sides the top and the extension bolt swing joint of tight piece, install the lead screw cover on the outer wall of circuit breaker case, and install the arc semi-ring on the outer wall of lead screw cover.
Preferably, go up the arc semi-ring and keep away from the one end of screw rod cover and install down the arc semi-ring, the extension lead screw is installed to the one end that the arc semi-ring is close to last arc semi-ring down, and the one end of extension lead screw extends to the inside of screw rod cover, has made things convenient for low voltage circuit breaker to dismantle the change.
Preferably, the surface of the lengthened lead screw on one side of the lead screw sleeve is sleeved with a nut seat, and the surface of the lengthened lead screw on one side of the nut seat is sleeved with a spring.
Preferably, the inside of circuit breaker case is equipped with the switching cover, the inside of switching cover is equipped with the wiring contact, and the one end of wiring contact extends to the outside of switching cover, be equipped with the wire piece on the outer wall of wiring contact.
Preferably, the inside of switching cover is equipped with the screw thread and detains, and the outer wall and the switching cover fixed connection that the screw thread detained.
Preferably, the inside of thread button is equipped with the locking threaded rod, and the outside of locking threaded rod's one end extension to circuit breaker case has realized that low voltage circuit breaker and cable are stable to be connected.
Compared with the prior art, the beneficial effects of the utility model are that: the low-voltage circuit breaker not only realizes convenient protection of the low-voltage circuit breaker, prevents external objects from damaging the low-voltage circuit breaker, but also facilitates the disassembly and replacement of the low-voltage circuit breaker;
(1) the protective cover is placed on the surface of the circuit breaker box, the protective cover protects the operating handle, the handle is rotated, the lengthened bolt is driven by the handle to rotate, the lengthened bolt drives the clamping block to move under the matching of the lengthened bolt and the threaded seat, the circuit breaker box is clamped by the clamping block, so that the protective cover and the circuit breaker box are fixed, the circuit breaker box is protected by the protective cover, the convenient protection of the low-voltage circuit breaker is realized, and the low-voltage circuit breaker is prevented from being damaged by external objects;
(2) the screw rod sleeve is connected with the circuit breaker box, the upper arc-shaped semi-ring is connected with the lower arc-shaped semi-ring, when the circuit breaker box needs to be installed and fixed, the upper arc-shaped semi-ring and the lower arc-shaped semi-ring are sleeved on the surface of a cylindrical surface of a distribution box and are made of elastic insulation materials, one end of a lengthened lead screw is inserted into the screw rod sleeve, a spring and a nut seat are sleeved on the surface of the lengthened lead screw, the nut seat is rotated, and the nut seat compresses the spring to fix the screw rod sleeve under the matching of the nut seat and the lengthened lead screw, so that the circuit breaker box and an external cylindrical body are conveniently fixed, the convenient installation and fixation of a low-voltage circuit breaker are realized, and the low-voltage circuit breaker is convenient to disassemble and replace;
(3) through the inside with the wire inserts the circuit breaker case, the wire gets into the inside of switching cover, electrician's personnel use the rotatory locking threaded rod of instrument, under the cooperation of locking threaded rod and thread buckle, under the support of switching cover, locking threaded rod drive wiring contact removes, press from both sides wiring contact and cable and switching cover and press from both sides tightly fixed, increase the area of contact of cable, wiring contact is connected through the wire piece and the inside component of circuit breaker case, low voltage circuit breaker and the stable being connected of cable have been realized, the stability of cable connection has been improved.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
fig. 2 is a schematic view of the front cross-sectional structure of the locking threaded rod of the present invention;
fig. 3 is a schematic view of the front view structure of the screw rod sleeve of the present invention;
fig. 4 is an enlarged schematic structural diagram of a in fig. 1 according to the present invention.
In the figure: 1. a circuit breaker case; 2. a threaded seat; 3. lengthening the bolt; 4. a handle; 5. a clamping block; 6. a protective cover; 7. an operating handle; 8. lengthening a screw rod; 9. a lower arc-shaped semi-ring; 10. an upper arc-shaped semi-ring; 11. a screw rod sleeve; 12. a spring; 13. a nut seat; 14. locking the threaded rod; 15. a wire sheet; 16. screwing; 17. a wiring contact piece; 18. an adapter sleeve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. 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. 1-4, the present invention provides an embodiment: a low-voltage circuit breaker with a protection structure comprises a circuit breaker box 1, a threaded seat 2, a lengthened bolt 3, a protection cover 6 and an upper arc-shaped semi-ring 10, wherein the protection cover 6 is installed on the outer wall of the circuit breaker box 1, an operating handle 7 is arranged inside the circuit breaker box 1 on one side of the protection cover 6, one end of the operating handle 7 extends to the outside of the circuit breaker box 1, the threaded seat 2 is installed inside the protection cover 6 above the circuit breaker box 1, the outer wall of the threaded seat 2 is fixedly connected with the circuit breaker box 1, the lengthened bolt 3 is arranged inside the threaded seat 2, two ends of the lengthened bolt 3 extend to the outside of the threaded seat 2, a handle 4 is installed at the top end of the lengthened bolt 3, the bottom end of the handle 4 is fixedly connected with the lengthened bolt 3, a clamping block 5 is installed at the bottom end of the lengthened bolt 3 below the handle 4, and the top end of the clamping block 5 is movably connected with the lengthened bolt 3;
when the protective cover 6 is placed on the surface of the circuit breaker box 1, the protective cover 6 protects the operating handle 7, the handle 4 is rotated, the lengthened bolt 3 is driven by the handle 4 to rotate, the lengthened bolt 3 drives the clamping block 5 to move under the matching of the lengthened bolt 3 and the threaded seat 2, and the circuit breaker box 1 is clamped by the clamping block 5, so that the protective cover 6 and the circuit breaker box 1 are fixed, the circuit breaker box 1 is protected by the protective cover 6, the convenient protection of a low-voltage circuit breaker is realized, and the low-voltage circuit breaker is prevented from being damaged by external objects;
a screw rod sleeve 11 is installed on the outer wall of the circuit breaker box 1, an upper arc-shaped semi-ring 10 is installed on the outer wall of the screw rod sleeve 11, a lower arc-shaped semi-ring 9 is installed at one end, far away from the screw rod sleeve 11, of the upper arc-shaped semi-ring 10, the lower arc-shaped semi-ring 9 is fixedly connected with the upper arc-shaped semi-ring 10, a lengthened screw rod 8 is installed at one end, close to the upper arc-shaped semi-ring 10, of the lower arc-shaped semi-ring 9, one end of the lengthened screw rod 8 extends into the screw rod sleeve 11, a nut seat 13 is sleeved on the surface of the lengthened screw rod 8 on one side of the screw rod sleeve 11, a spring 12 is sleeved on the surface of the lengthened screw rod 8 on one side of the nut seat 13, and the bottom end of the spring 12 is fixedly connected with the screw rod sleeve 11;
when the circuit breaker box 1 is used, the screw rod sleeve 11 is connected with the circuit breaker box 1, the upper arc-shaped semi-ring 10 is connected with the lower arc-shaped semi-ring 9, when the circuit breaker box 1 needs to be installed and fixed, the upper arc-shaped semi-ring 10 and the lower arc-shaped semi-ring 9 are sleeved on the cylindrical surface of the distribution box, the upper arc-shaped semi-ring 10 and the lower arc-shaped semi-ring 9 are both made of elastic insulating materials, one end of the lengthened lead screw 8 is inserted into the screw rod sleeve 11, the spring 12 and the nut seat 13 are sleeved on the surface of the lengthened lead screw 8, the nut seat 13 is rotated, and the nut seat 13 compresses the spring 12 to fix the screw rod sleeve 11 under the matching of the nut seat 13 and the lengthened lead screw 8, so that the circuit breaker box 1 and an external cylinder are conveniently fixed, the convenient installation and fixation of a low-voltage circuit breaker is realized, and the low-voltage circuit breaker is convenient to be detached and replaced;
an adapter sleeve 18 is arranged inside the circuit breaker box 1, a wiring contact piece 17 is arranged inside the adapter sleeve 18, one end of the wiring contact piece 17 extends to the outside of the adapter sleeve 18, a lead piece 15 is arranged on the outer wall of the wiring contact piece 17, the lead piece 15 is fixedly connected with the wiring contact piece 17, a thread buckle 16 is arranged inside the adapter sleeve 18, the outer wall of the thread buckle 16 is fixedly connected with the adapter sleeve 18, a locking threaded rod 14 is arranged inside the thread buckle 16, and one end of the locking threaded rod 14 extends to the outside of the circuit breaker box 1;
during the use, through inserting the wire in the inside of circuit breaker case 1, the wire gets into the inside of adapter sleeve 18, electrician's personnel use the rotatory locking threaded rod 14 of instrument, under the cooperation of locking threaded rod 14 and screw thread buckle 16, under the support of adapter sleeve 18, locking threaded rod 14 drive wiring contact 17 removes, press from both sides wiring contact 17 and cable and adapter sleeve 18 and press from both sides tightly fixedly, increase the area of contact of cable, wiring contact 17 is connected through wire piece 15 and the inside component of circuit breaker case 1, realized low voltage circuit breaker and the stable being connected of cable, the stability of cable connection has been improved.
When the embodiment of the application is used: an external power supply, firstly, a protective cover 6 is placed on the surface of a circuit breaker box 1, an operation handle 7 is protected by the protective cover 6, a handle 4 is rotated, the lengthened bolt 3 is driven by the handle 4 to rotate, a clamping block 5 is driven by the lengthened bolt 3 to move under the matching of the lengthened bolt 3 and a threaded seat 2, the circuit breaker box 1 is clamped by the clamping block 5, so that the protective cover 6 and the circuit breaker box 1 are fixed, the circuit breaker box 1 is protected by the protective cover 6, then an upper arc semi-ring 10 and a lower arc semi-ring 9 are connected together by connecting a screw rod sleeve 11 with the circuit breaker box 1, when the circuit breaker box 1 needs to be fixedly installed, the upper arc semi-ring 10 and the lower arc semi-ring 9 are sleeved on the cylindrical surface of a distribution box, the upper arc semi-ring 10 and the lower arc semi-ring 9 are both made of elastic insulating materials, one end of a lengthened screw rod 8 is inserted into the screw rod sleeve 11, the spring 12 and the nut seat 13 are sleeved on the surface of the lengthened lead screw 8, the nut seat 13 is rotated, under the matching of the nut seat 13 and the lengthened lead screw 8, the nut seat 13 compresses the spring 12 to fix the lead screw sleeve 11, so that the circuit breaker box 1 is conveniently fixed with an external cylinder, then a lead is inserted into the circuit breaker box 1 and enters the inner part of the adapter sleeve 18, an electrician rotates the locking threaded rod 14 by using a tool, under the matching of the locking threaded rod 14 and the threaded buckle 16, under the supporting of the adapter sleeve 18, the locking threaded rod 14 drives the wiring contact piece 17 to move, the wiring contact piece 17 and the cable are clamped and fixed with the adapter sleeve 18, the contact area of the cable is increased, and the wiring contact piece 17 is connected with elements in the circuit breaker box 1 through the lead piece 15 to complete the use work of the low-voltage circuit breaker.
Claims (6)
1. A low-voltage circuit breaker with a protection architecture, characterized in that: comprises a breaker box (1), a screw seat (2), a lengthened bolt (3), a protective cover (6) and an upper arc-shaped semi-ring (10), wherein the protective cover (6) is installed on the outer wall of the breaker box (1), an operating handle (7) is arranged inside the breaker box (1) on one side of the protective cover (6), one end of the operating handle (7) extends to the outside of the breaker box (1), the screw seat (2) is installed inside the protective cover (6) above the breaker box (1), the lengthened bolt (3) is arranged inside the screw seat (2), the two ends of the lengthened bolt (3) extend to the outside of the screw seat (2), a handle (4) is installed at the top end of the lengthened bolt (3), a clamping block (5) is installed at the bottom end of the lengthened bolt (3) below the handle (4), and the top end of the clamping block (5) is movably connected with the lengthened bolt (3), the outer wall of the circuit breaker box (1) is provided with a screw rod sleeve (11), and the outer wall of the screw rod sleeve (11) is provided with an upper arc-shaped semi-ring (10).
2. A low-voltage circuit breaker with protection architecture, as claimed in claim 1, characterized in that: go up arc semi-ring (10) and keep away from the one end of lead screw cover (11) and install down arc semi-ring (9), extension lead screw (8) are installed to the one end that arc semi-ring (9) are close to last arc semi-ring (10) down, and the one end of extension lead screw (8) extends to the inside of lead screw cover (11).
3. A low-voltage circuit breaker with protection architecture, as claimed in claim 1, characterized in that: the surface of the lengthened screw rod (8) on one side of the screw rod sleeve (11) is sleeved with a nut seat (13), and the surface of the lengthened screw rod (8) on one side of the nut seat (13) is sleeved with a spring (12).
4. A low-voltage circuit breaker with protection architecture, as claimed in claim 1, characterized in that: the inside of circuit breaker case (1) is equipped with switching cover (18), the inside of switching cover (18) is equipped with wiring contact (17), and the one end of wiring contact (17) extends to the outside of switching cover (18), be equipped with wire piece (15) on the outer wall of wiring contact (17).
5. A low-voltage circuit breaker with protection architecture, as claimed in claim 4, characterized in that: the interior of the adapter sleeve (18) is provided with a thread buckle (16), and the outer wall of the thread buckle (16) is fixedly connected with the adapter sleeve (18).
6. A low-voltage circuit breaker with protection architecture, as claimed in claim 5, characterized in that: the inside of turn buckle (16) is equipped with locking threaded rod (14), and the outside of the one end extension of locking threaded rod (14) to circuit breaker case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121468392.6U CN214956677U (en) | 2021-06-30 | 2021-06-30 | Low-voltage circuit breaker with protection architecture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121468392.6U CN214956677U (en) | 2021-06-30 | 2021-06-30 | Low-voltage circuit breaker with protection architecture |
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| Publication Number | Publication Date |
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| CN214956677U true CN214956677U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121468392.6U Active CN214956677U (en) | 2021-06-30 | 2021-06-30 | Low-voltage circuit breaker with protection architecture |
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| CN (1) | CN214956677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300314A (en) * | 2022-01-21 | 2022-04-08 | 江苏爱斯凯电气有限公司 | Universal circuit breaker |
-
2021
- 2021-06-30 CN CN202121468392.6U patent/CN214956677U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300314A (en) * | 2022-01-21 | 2022-04-08 | 江苏爱斯凯电气有限公司 | Universal circuit breaker |
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