CN210668159U - Position lock device of breaker handle - Google Patents
Position lock device of breaker handle Download PDFInfo
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- CN210668159U CN210668159U CN201921862784.3U CN201921862784U CN210668159U CN 210668159 U CN210668159 U CN 210668159U CN 201921862784 U CN201921862784 U CN 201921862784U CN 210668159 U CN210668159 U CN 210668159U
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- supporting part
- padlock
- clamping arm
- handle
- clamping
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Abstract
The utility model relates to the technical field of low-voltage electrical apparatus accessories, in particular to a position lock device of a breaker handle, which comprises a first lock plate and a second lock plate, wherein the first lock plate comprises a first interlocking part, a first supporting part and a first clamping jaw, the first interlocking part is provided with at least one first interlocking hole, the second lock plate comprises a second interlocking part, a second supporting part and a second clamping jaw, the second interlocking part is provided with at least one second interlocking hole, the first latch part and the first supporting part are vertically arranged, the first claw is connected to the right side of the first supporting part, the second latch part and the second supporting part are vertically arranged, the second claw is connected to the left side of the second supporting part, first supporting part and second supporting part distribute from top to bottom, first supporting part and second supporting part pass through the connecting axle and connect, and first locking plate and second locking plate can rotate relatively around the central line of connecting axle. By adopting the structure, the position lock device which is not easy to overturn, convenient to install and high in strength is provided.
Description
Technical Field
The utility model relates to a low-voltage apparatus annex technical field, especially a position lock device of circuit breaker handle.
Background
At present, a molded case low-voltage circuit breaker realizes the power-on and power-off functions of the circuit breaker by opening and closing a handle of the circuit breaker. In the use process of the circuit breaker, in order to prevent the circuit breaker from being operated by mistake, influence the on-off condition or the life safety of maintenance personnel during maintenance, bring unforeseen results, it is important to keep the position of the handle of the circuit breaker so that the handle of the circuit breaker is not operated by mistake.
In order to realize the function of keeping the handle position of the low-voltage circuit breaker, various locking devices for locking the handle of the circuit breaker at the closing and opening positions are generally adopted, Chinese invention patent application publication No. CN101882540A discloses a locking device and a locking method for the handle of the low-voltage circuit breaker, which is formed by attaching the front surface of a first bracket and the rear surface of a second bracket, wherein the first bracket comprises a claw, a supporting arm and a padlock part, the second bracket comprises another claw, another supporting arm and another padlock part, and two first open slots and second open slots which have the same size and shape and are matched with the two claws are respectively arranged on two inner side surfaces of an opening of a top cover of the circuit breaker; when the breaker is switched on, the two claws are respectively clamped into the two first open grooves, and the padlock is inserted into the keyhole and locked; and when the brake is switched off, the padlock is taken down, the two supports are sequentially moved away, the operating handle is switched to the brake switching-off position, and the claws of the first support and the second support are respectively clamped into the two second open grooves and locked with the padlock by adopting the same method when the circuit breaker is switched on at the other side of the handle of the circuit breaker. The locking device can ensure the safety and reliability of equipment during operation and maintenance, and the appearance of the circuit breaker does not need to be changed. However, the following disadvantages exist: firstly, because the two brackets are independent parts and are not an integral component, the two brackets are required to be respectively assembled on the circuit breaker during installation, and the installation is inconvenient; secondly, because no fastener is arranged between the two brackets, the two brackets are easy to loosen after being respectively assembled, so that the padlock is not reliably locked; moreover, the padlock device is formed by the joint of the front surface of the first bracket and the rear surface of the second bracket, so that the bracket can bear weaker external impact force and has low strength.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a position locking device of circuit breaker handle, the device constitute a holistic subassembly, make the difficult upset of first locking plate and second locking plate after the position locking device installation, simple to operate, intensity is high to can lock the position at the separating brake with circuit breaker handle reliably.
In order to realize the purpose, the utility model discloses a technical scheme is: a position lock device of a breaker handle comprises a first lock plate and a second lock plate, wherein the first lock plate comprises a first interlocking part, a first supporting part and a first clamping jaw, at least one first interlocking hole is formed in the first interlocking part, the second lock plate comprises a second interlocking part, a second supporting part and a second clamping jaw, at least one second interlocking hole is formed in the second interlocking part, the first latch part and the first supporting part are vertically arranged, the first claw is connected to the right side of the first supporting part, the second latch part and the second supporting part are vertically arranged, the second claw is connected to the left side of the second supporting part, first supporting part and second supporting part distribute from top to bottom, first supporting part and second supporting part pass through the connecting axle and connect, and first locking plate and second locking plate can be rotated relatively around the central line of connecting axle and realize drawing close each other or keeping away from each other of first jack catch and second jack catch.
Among the above-mentioned technical scheme, first locking plate and second locking plate pass through the connecting axle riveting, and the stack laminating is in the same place, and but first locking plate and second locking plate relative rotation are in order to adjust the interval between first jack catch and the second jack catch, make the joint that first jack catch and second jack catch can be convenient on the circuit breaker, stable in structure can lock the circuit breaker handle at combined floodgate or separating brake position reliably to the fail safe nature when having guaranteed equipment operation and having maintained.
As the utility model discloses a further setting, first, second padlock portion be parallel with the plane at first, second jack catch place, first padlock portion aligns the setting with second padlock portion, and its existence between the two supplies first padlock portion and second padlock portion relative pivoted space.
Among the above-mentioned technical scheme, because first locking plate and second locking plate need the mutual rotation, and first padlock hole and second padlock hole need align the setting, so first padlock portion and second padlock portion are clearance fit, leave the space of mutual rotation, simple structure, processing is convenient.
As a further arrangement of the present invention, the first and second latch portions are perpendicular to the plane where the first and second claws are located, and the first latch portion and the second latch portion are aligned and attached.
Among the above-mentioned technical scheme, this design can make things convenient for the padlock to hang and establish because when first padlock portion and second padlock portion are parallel with the plane at first, second jack catch place, in last padlock, be hindered easily by the handle, simple structure, convenient to use.
As a further setting of the utility model, it has first centre gripping arm to extend on the first supporting part, and first centre gripping arm and first jack catch lie in same one side of first supporting part, it has second centre gripping arm to extend on the second supporting part, and second centre gripping arm and second jack catch lie in same one side of second supporting part, first centre gripping arm and second centre gripping arm set up relatively, have between the two one with the centre gripping chamber of handle adaptation.
Among the above-mentioned technical scheme, the motion of handle has further been restricted in setting up of first centre gripping arm and second centre gripping arm, and locking function is more stable, and the device is difficult for the upset.
As a further setting of the utility model, first centre gripping arm become to level and smooth and be located the coplanar with first supporting part, second centre gripping arm be the shape of bending and its the exposed core that forms after bending and first centre gripping arm be located the coplanar.
Among the above-mentioned technical scheme, this design makes first, second locking plate riveting back, and first, second centre gripping arm keeps coplane state, is favorable to the fool-proof installation setting of position lock device and ensures the functional state of position lock device.
As a further setting of the utility model, second centre gripping arm become to level and smooth and be located the coplanar with the second supporting part, first centre gripping arm be bend shape and its bend after the exposed core that forms and second centre gripping arm be located the coplanar.
Among the above-mentioned technical scheme, this design makes first, the riveting of second locking plate back, and first locking plate and second locking plate also can be through the bolt and nut connection, and first, the second centre gripping arm keeps coplane state, is favorable to the functional state that prevents slow-witted installation setting and guarantee position lock device of position lock device.
As the utility model discloses a further setting, be provided with at least three spacing lug on the opposite face of first centre gripping arm and second centre gripping arm, three spacing lug encloses into the centre gripping chamber.
Among the above-mentioned technical scheme, spacing lug constitutes spacing cooperation with the handle, makes accurate the pressing from both sides of first centre gripping arm and second centre gripping arm establish on the handle, and three spacing lug distributes along the circumference of handle, and the parcel is in the circumference outside of handle, and locking function is more stable, connects more firmly.
As a further setting of the utility model, first jack catch and second jack catch all become the Z style of calligraphy, and the one end of first jack catch and second jack catch is connected respectively on first supporting part and second supporting part, and the other end deviates from each other.
Among the above-mentioned technical scheme, first jack catch and second jack catch set up relatively, and become the state that deviates from each other, and first jack catch and second jack catch all include two horizontal claws that are parallel to each other and the perpendicular claw of connecting two horizontal claws, and one of them horizontal claw is connected with first supporting part or second supporting part, and another horizontal claw forms L shape bayonet socket with perpendicular claw, the bayonet socket on the first jack catch and the bayonet socket opposite direction on the second jack catch.
The present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a second locking plate according to embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a first locking plate according to embodiment 1 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 6 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 7 is a schematic structural view of a second locking plate according to embodiment 2 of the present invention;
fig. 8 is a schematic structural diagram of a first locking plate according to embodiment 2 of the present invention;
fig. 9 is a schematic structural diagram of the position lock device according to the embodiment of the present invention when it is mounted on the circuit breaker. (ii) a
Fig. 10 is a schematic view showing a structure of a position lock device according to an embodiment of the present invention when the position lock device is mounted on a circuit breaker and a padlock is hung.
Figure 11 is the utility model discloses embodiment circuit breaker top cap's schematic structure diagram.
Detailed Description
The embodiment of the present invention is shown in fig. 1 to 8, which is a position lock device of a breaker handle 3, comprising a first lock plate 1 and a second lock plate 2, wherein the first lock plate 1 comprises a first latch part 11, a first support part 12 and a first claw 13, the first latch part 11 is provided with at least one first latch hole 111, the second lock plate 2 comprises a second latch part 21, a second support part 22 and a second claw 23, the second latch part 21 is provided with at least one second latch hole 211, the first latch part 11 and the first support part 12 are vertically arranged, the first claw 13 is connected to the right side of the first support part 12, the second latch part 21 and the second support part 22 are vertically arranged, the second claw 23 is connected to the left side of the second support part 22, the first support part 12 and the second support part 22 are vertically distributed, the first support part 12 and the second support part 22 are connected by a connecting shaft 3, the first locking piece 1 and the second locking piece 2 can rotate relatively around the central line of the connecting shaft 3 to realize the mutual approaching or mutual departing of the first claw 13 and the second claw 23. First locking plate 1 and second locking plate 2 are riveted through connecting axle 3, the stack laminating is in the same place, and but first locking plate 1 and second locking plate 2 relative rotation be in order to adjust the interval between first jack catch 13 and the second jack catch 23, make the joint that first jack catch 13 and second jack catch 23 can be convenient on the circuit breaker, stable in structure can lock circuit breaker handle 3 at combined floodgate or separating brake position reliably, thereby the fail safe nature when having guaranteed equipment operation and having maintained.
In embodiment 1, the first and second latch portions 11 and 21 are parallel to the plane on which the first and second pawls 13 and 23 are located, the first latch portion 11 and the second latch portion 21 are aligned, and a gap a for relative rotation between the first latch portion 11 and the second latch portion 21 is present therebetween. Because first locking plate 1 and second locking plate 2 need the mutual rotation, and first padlock hole 111 and second padlock hole 211 need align the setting, so first padlock portion 11 and second padlock portion 21 are clearance fit, leave mutual pivoted space A, simple structure, processing is convenient.
In embodiment 2, the first and second latch portions 11 and 21 are perpendicular to the plane on which the first and second claws 13 and 23 are located, and the first latch portion 11 and the second latch portion 21 are aligned and attached to each other. The design can facilitate hanging of the padlock, because when the first padlock part 11 and the second padlock part 21 are parallel to the plane where the first claw 13 and the second claw 23 are located, the first padlock part and the second padlock part are easily obstructed by the handle 3 in the process of hanging the padlock, and the padlock has the advantages of simple structure and convenience in use.
The first support part 12 is extended with a first clamping arm 121, the first clamping arm 121 and the first claw 13 are positioned on the same side of the first support part 12, the second support part 22 is extended with a second clamping arm 221, the second clamping arm 221 and the second claw 23 are positioned on the same side of the second support part 22, the first clamping arm 121 and the second clamping arm 221 are oppositely arranged, and a clamping cavity B matched with the handle 3 is formed between the first clamping arm 121 and the second clamping arm 221. The arrangement of the first and second clamp arms 121 and 221 further limits the movement of the handle 3, the locking function is more stable, and the device is not easy to turn over.
The first clamping arm 121 is flat and is located in the same plane as the first supporting portion 12, the second clamping arm 221 is bent, and the clamping end 2211 formed by bending the second clamping arm is located in the same plane as the first clamping arm 121; or the second holding arm 221 is flat and located in the same plane as the second supporting portion 22, and the first holding arm 121 is bent and the holding end formed by bending the first holding arm is located in the same plane as the second holding arm 221. This design makes first, second locking plate 2 riveting back, and first, second centre gripping arm 221 keeps coplane state, is favorable to the fool-proof installation setting of position lock device and ensures the functional state of position lock device.
At least three limit lugs B1 are arranged on the opposite surfaces of the first clamping arm 121 and the second clamping arm 221, and the three limit lugs B1 enclose the clamping cavity B. Spacing lug B1 constitutes spacing cooperation with handle 3, makes accurate the pressing from both sides of first centre gripping arm 121 and second centre gripping arm 221 establish on handle 3, and three spacing lug B1 distributes along the circumference of handle 3, wraps up in the circumference outside of handle 3, and locking function is more stable, connects more firmly.
The first jaw 13 and the second jaw 23 are both in a zigzag shape, one end of the first jaw 13 and one end of the second jaw 23 are connected to the first supporting portion 12 and the second supporting portion 22, and the other ends thereof are deviated from each other. The first jaw 13 and the second jaw 23 are oppositely arranged and are in a state of being separated from each other, the first jaw 13 and the second jaw 23 respectively comprise two transverse jaws 131 and 231 which are parallel to each other and vertical jaws 132 and 232 which connect the two transverse jaws 131 and 231, wherein one transverse jaw 131 and 231 is connected with the first supporting part 12 or the second supporting part 22, the other transverse jaw 131 and 231 and the vertical jaws 132 and 232 form L- shaped bayonets 133 and 233, and the bayonets 133 and 233 on the first jaw 13 are opposite to the bayonets 133 and 233 on the second jaw 23.
As shown in fig. 9-11, during the operation of the circuit breaker, a top cover opening 41 is formed in the position of the handle 3 on the top cover 4 of the circuit breaker, the handle 3 slides along an arc in the top cover opening 41, two open slots 411 are formed on the inner side surfaces of the left side and the right side of the top cover opening 41, and the open slots 411 are symmetrically arranged on the inner side. The shape and size of the two open slots 411 are matched with the first claw 12 and the second claw 22, and the open slots 411 are used for locking the position of the handle 3 when the brake is opened.
When the circuit breaker needs to stop running or a line needs to be maintained, the circuit breaker needs to be subjected to opening operation, and the circuit breaker handle 3 is kept at the opening position and cannot be subjected to false closing operation. At this moment, the locking device needs to be installed in a position, matched with the top cover 4 of the circuit breaker, and then the padlock 5 is hung in a padlock hole position to be locked, specifically, the first locking plate 1 and the second locking plate 2 are rotated to reduce the distance between the first clamping jaw 12 and the second clamping jaw 22, so that the first clamping jaw 12 and the second clamping jaw 22 can be placed in the top cover opening 41, then the first clamping jaw 12 and the second clamping jaw 22 are aligned with the two open grooves 411, then the first locking plate 1 and the second locking plate 2 are reversed to enable the first clamping jaw 12 and the second clamping jaw 22 to be respectively clamped into the two open grooves 411, installation of the locking device is completed, meanwhile, the first clamping arm and the second clamping arm are clamped on the handle 3, and then the padlock 5 is inserted into the first padlock hole and the second padlock hole to be locked. When the breaker handle 3 is to be closed, the breaker handle 3 is blocked and can not be moved, and the function of locking the breaker handle 3 at the opening position can be realized after the padlock 5 is hung and locked.
The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.
Claims (8)
1. The utility model provides a position lock device of circuit breaker handle, includes first locking plate and second locking plate, and first locking plate includes first padlock portion, first supporting part and first jack catch, is provided with at least one first padlock hole on the first padlock portion, and the second locking plate includes second padlock portion, second supporting part and second jack catch, is provided with at least one second padlock hole on the second padlock portion, its characterized in that: first padlock portion sets up with first supporting part is perpendicular, and first jack catch is connected on the right side of first supporting part, second padlock portion sets up with the second supporting part is perpendicular, and the left side at the second supporting part is connected to the second jack catch, first supporting part and second supporting part distribute from top to bottom, first supporting part and second supporting part pass through the connecting axle and connect, and first locking plate and second locking plate can be rotated relatively around the central line of connecting axle and realize drawing close each other or keeping away from each other of first jack catch and second jack catch.
2. The position lock device of the handle for circuit breaker according to claim 1, wherein: the first padlock part and the second padlock part are arranged in an aligning mode, and a gap for relative rotation of the first padlock part and the second padlock part exists between the first padlock part and the second padlock part.
3. The position lock device of the handle for circuit breaker according to claim 1, wherein: the first padlock part and the second padlock part are aligned and attached to each other.
4. Position lock device of a circuit breaker handle according to claim 1, 2 or 3, characterized in that: the handle is characterized in that a first clamping arm extends from the first supporting part, the first clamping arm and the first clamping jaw are located on the same side of the first supporting part, a second clamping arm extends from the second supporting part, the second clamping arm and the second clamping jaw are located on the same side of the second supporting part, the first clamping arm and the second clamping arm are arranged oppositely, and a clamping cavity matched with the handle is formed between the first clamping arm and the second clamping arm.
5. The position lock device of the handle for circuit breaker according to claim 4, wherein: the first clamping arm is flat and positioned in the same plane with the first supporting part, and the second clamping arm is bent and positioned in the same plane with the first clamping arm at a clamping end formed after the second clamping arm is bent.
6. The position lock device of the handle for circuit breaker according to claim 4, wherein: the second clamping arm is flat and positioned in the same plane with the second supporting part, and the first clamping arm is bent and positioned in the same plane with the second clamping arm at a clamping end formed after the first clamping arm is bent.
7. Position lock device of a circuit breaker handle according to claim 5 or 6, characterized in that: at least three limiting lugs are arranged on the opposite surfaces of the first clamping arm and the second clamping arm, and the three limiting lugs surround the clamping cavity.
8. The position lock device of the handle for circuit breaker according to claim 1, 2, 3, 5 or 6, characterized in that: the first clamping jaw and the second clamping jaw are Z-shaped, one ends of the first clamping jaw and the second clamping jaw are connected to the first supporting portion and the second supporting portion respectively, and the other ends of the first clamping jaw and the second clamping jaw deviate from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921862784.3U CN210668159U (en) | 2019-10-31 | 2019-10-31 | Position lock device of breaker handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921862784.3U CN210668159U (en) | 2019-10-31 | 2019-10-31 | Position lock device of breaker handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210668159U true CN210668159U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921862784.3U Active CN210668159U (en) | 2019-10-31 | 2019-10-31 | Position lock device of breaker handle |
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| Country | Link |
|---|---|
| CN (1) | CN210668159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075372A (en) * | 2021-03-17 | 2021-07-06 | 恒天益科技（深圳）有限公司 | Monitoring buoy depth adjusting device and monitoring buoy |
-
2019
- 2019-10-31 CN CN201921862784.3U patent/CN210668159U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075372A (en) * | 2021-03-17 | 2021-07-06 | 恒天益科技（深圳）有限公司 | Monitoring buoy depth adjusting device and monitoring buoy |
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