CN212461426U - Circuit breaker inspection cabinet static contact sleeve set capable of rapidly converting model and having self-locking function - Google Patents
Circuit breaker inspection cabinet static contact sleeve set capable of rapidly converting model and having self-locking function Download PDFInfo
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- CN212461426U CN212461426U CN202021479659.7U CN202021479659U CN212461426U CN 212461426 U CN212461426 U CN 212461426U CN 202021479659 U CN202021479659 U CN 202021479659U CN 212461426 U CN212461426 U CN 212461426U
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- 230000003068 static effect Effects 0.000 title claims abstract description 89
- 238000007689 inspection Methods 0.000 title claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 abstract description 19
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
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Abstract
The fixed contact sleeve set of the circuit breaker inspection cabinet with the self-locking function and the model capable of being rapidly converted belongs to the technical field of circuit breaker assembly inspection, clamping balls are clamped in spring holes through clamping springs, the positioning effect of a sleeve type fixed contact and a fixed center fixed contact is realized, an operator can complete model conversion without any tool by hands, the speed of model conversion of the inspected fixed contact in the circuit breaker inspection process is effectively increased, the inspection process is simplified, and the inspection efficiency is greatly improved; meanwhile, the disassembly frequency of the screw hole of the static contact on the inspection cabinet is reduced, the abrasion is reduced, the positioning accuracy of the contact is ensured, the product quality of the circuit breaker is greatly improved, and the whole device has the advantages of simple structure, high reliability, easiness in assembly and convenience in use.
Description
Technical Field
The utility model belongs to the technical field of the circuit breaker assembly inspection, concretely relates to circuit breaker inspection cabinet static contact suit that can quick switching model area auto-lock.
Background
The global resource scarcity and the development of social economy make the power industry face the challenge and opportunity of maximizing the unprecedented benefits, and simultaneously, higher requirements are put forward for the reliability and the utilization rate of increasingly complex power systems. At present, research on power equipment is mainly focused on large-scale power equipment such as a generator and a transformer, a circuit breaker is used as important protection and control equipment in a power system, the operation state of the circuit breaker directly influences the operation stability and safety of the power system, the contact arm part of the circuit breaker with most models is an essential important part of the circuit breaker at present, the quality of a product can be directly influenced due to the fact that the contact arm is installed in an substandard mode, and even the contact arm is completely not aligned with a static contact of the equipment such as an installed transformer substation, so that the installation cannot be carried out. Therefore, a detection procedure for the contact arm is specially arranged to ensure the accurate installation of the contact arm.
The current commonly used test protocols are: according to the standard design requirement, six static contacts matched with the circuit breaker to be inspected are installed at the rear end of the inspection cabinet. After the position of the contact arm is debugged, the contact arm is pushed into a cabinet for inspection, and can be perfectly butted with a fixed contact, so that the contact arm is qualified. The scheme can accurately test whether the contact arm of the circuit breaker is qualified, but the defect is obvious, namely six corresponding static contacts are required to be installed again for testing different types of circuit breakers at each time, the process is extremely complicated, the workload of workers is increased, and the production efficiency is low directly. The other disadvantage is that the screw hole for fixing the static contact of the inspection cabinet is worn greatly, and when the contact arm of a circuit breaker of a certain type is inspected, the previous set of static contact is unloaded, and then the static contact of the required type is installed, and the screw hole is worn seriously after the fixing screw is repeatedly inserted and pulled out, so that the screw is loosened or the hole position is not correct, and the like. After the screw holes are abraded in a large amount and are not detected, six contact arm mounting positions of the circuit breaker are not standard, and unqualified products flow out.
In order to avoid the situation, infrared rays or laser positioning is developed to check whether the contact arm is qualified, and the size of an aperture emitted by laser is adjusted to adapt to various types of circuit breaker contact arms. The method can also accurately detect the accuracy of the contact arm, and solves the problem that the screw hole is seriously abraded to cause unqualified products in the previous method. However, the biggest problem of the scheme is that the manufacturing cost is too high, the cost performance is too low, the inspection in the link needs high accuracy, the accuracy is required to be in the millimeter level, and the cost of one set of equipment is extremely high. Damage may also be encountered after a period of use, replacement of equipment or modules therein, and significant capital investment and maintenance may be required. There is therefore a need for improvements.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem: the utility model provides a circuit breaker inspection cabinet static contact cover assembly capable of fast switching model and self-locking, the utility model discloses a through screens the spring make screens ball card in the spring hole, realize the positioning action of telescopic static contact and fixed center static contact, the operator can accomplish the model switching without any instrument bare-handed, effectively improve the speed of switching the inspection static contact model in the circuit breaker inspection process, simplify the inspection process, greatly improved inspection efficiency; meanwhile, the disassembly frequency of the screw hole of the static contact on the inspection cabinet is reduced, the abrasion is reduced, the positioning accuracy of the contact is ensured, the product quality of the circuit breaker is greatly improved, and the whole device has the advantages of simple structure, high reliability, easiness in assembly and convenience in use.
The utility model adopts the technical proposal that: the fixed contact sleeve set capable of rapidly converting models and provided with the self-locking function for the circuit breaker inspection cabinet comprises a fixed center fixed contact and sleeve type fixed contacts of different models, wherein the rear end of the fixed center fixed contact is fixedly connected with the standard position of a rear baffle of the inspection cabinet, the sleeve type fixed contacts are directly and coaxially sleeved on the fixed center fixed contact when in use, and the self-locking positioning of the relative position is realized through an elastic ball self-locking structure after the sleeve type fixed contacts are sleeved with the fixed center fixed contacts.
In order to further limit the technical scheme, the fixed center static contact comprises a positioning contact part, a fixed chassis of the fixed center static contact is arranged at the rear end of the positioning contact part and is fixedly connected with the standard position of the rear baffle of the inspection cabinet, the fixed chassis of the fixed center static contact is fixedly connected with the rear baffle of the inspection cabinet through screws, and a plurality of fixed screw holes which are convenient for the screws to pass through are uniformly distributed on the fixed chassis of the fixed center static contact.
In order to further limit the technical scheme, the elastic ball self-locking structure between the sleeve-type fixed contact and the fixed center fixed contact is as follows: the fixed center static contact is characterized in that a fixed center static contact spring hole is formed in the root of a fixed contact part of the fixed center static contact, a spring sleeve is matched inside the fixed center static contact spring hole, a clamping spring is installed inside the spring sleeve, one end of the spring sleeve and one end of the clamping spring inside the spring sleeve extend out of the fixed center static contact spring hole, and a clamping ball is arranged on the spring sleeve; the center of the sleeve type static contact is provided with a sleeve hole which is sleeved with the positioning contact part of the fixed center static contact, and both sides of one end of the root part of the sleeve type static contact are radially provided with ball positioning holes; the inner wall of the trepanning is provided with an annular chute which is matched with the spring sleeve and the clamping spring to enable the spring sleeve and the clamping spring to stretch out the end and the clamping ball to slide conveniently, and one end of the root of the trepanning is provided with a groove which is convenient for the spring sleeve and the clamping spring to stretch out the end and the clamping ball to pass through.
The utility model has the advantages compared with the prior art:
1. according to the scheme, the clamping ball is clamped in the spring hole through the clamping spring, the positioning effect of the sleeve-type fixed contact and the fixed center fixed contact is realized, the nested matched fixed contact sleeve structure is adopted, an operator can complete model conversion without any tool by hands, new inspection is directly started, the speed of detecting the model conversion of the fixed contact in the inspection process of the circuit breaker is effectively increased, the conversion of the model of the fixed contact can be completed within twenty seconds, the inspection process is simplified, and the inspection efficiency is greatly improved; the whole device has simple structure, high reliability, easy assembly and convenient use;
2. compared with the prior method, the structure is designed on the side of the contact, the installation position of the static contact cannot be influenced even if the static contact is worn and loosened, the position of the sleeve static contact cannot be changed even if the sleeve static contact is repeatedly pulled out, the positioning accuracy of the contact is ensured, and the product quality of the circuit breaker is greatly improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of a fixed center stationary contact according to the present invention;
fig. 3 is a schematic structural view of the middle sleeve type static contact of the present invention.
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. 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.
In the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one.. said element does not exclude the presence of other like elements in the process, method, article or apparatus that comprises the element.
Referring to fig. 1-3, embodiments of the present invention are detailed:
the circuit breaker inspection cabinet static contact sleeve set capable of rapidly converting models and having self-locking comprises a fixed center static contact 1 and sleeve type static contacts 2 of different models.
As shown in fig. 2, the rear end of the fixed center static contact 1 is fixedly connected with a standard position of a rear baffle 6 of the inspection cabinet, the fixed center static contact 1 includes a positioning contact part 101, a fixed chassis 102 of the fixed center static contact for fixedly connecting with the standard position of the rear baffle 6 of the inspection cabinet is arranged at the rear end of the positioning contact part 101, the fixed chassis 102 of the fixed center static contact is fixedly connected with the rear baffle 6 of the inspection cabinet by screws, and a plurality of fixed screw holes 103 for allowing the screws to pass through are uniformly distributed on the circumference of the fixed chassis 102 of the fixed center static contact.
When in use, the sleeve type static contact 2 is directly and coaxially sleeved on the fixed center static contact 1, and the self-locking positioning of the relative position is realized through the elastic ball self-locking structure after the sleeve type static contact 2 and the fixed center static contact 1 are sleeved. The elastic ball self-locking structure between the sleeve type static contact 2 and the fixed center static contact 1 is as follows: as shown in fig. 3, a positioning stationary contact spring hole 104 is formed in the root of a positioning contact part 101 of the fixed center stationary contact 1, a spring sleeve 4 is adapted inside the positioning stationary contact spring hole 104, a clamping spring 3 is installed inside the spring sleeve 4, and one end of each of the spring sleeve 4 and the clamping spring 3 inside the spring sleeve 4 extends out of the positioning stationary contact spring hole 104 and is provided with a clamping ball 5; the center of the sleeve-type static contact 2 is provided with a sleeve hole 201 which is sleeved with the positioning contact part 101 of the fixed center static contact 1, and both sides of one end of the root part of the sleeve-type static contact 2 are radially provided with ball positioning holes 202; the inner wall of the trepanning 201 is provided with an annular chute 203 which is corresponding to the ball positioning hole 202 and is convenient for the spring sleeve 4 and the position clamping spring 3 to extend out of the end and the position clamping ball 5 to be matched to slide, and one end of the root of the trepanning 201 is provided with a groove 204 which is convenient for the spring sleeve 4 and the position clamping spring 3 to extend out of the end and the position clamping ball 5 to pass through.
The utility model provides a when telescopic static contact 2 changes the installation on fixed center static contact 1, as shown in fig. 1, earlier overlap screens spring 3 in spring sleeve 4, insert the location static contact spring hole 104 of fixed center static contact 1 with it again together, make screens spring 3 and spring sleeve 4 one end stretch out location static contact spring hole 104 and install screens ball 5 on it. The sleeve hole 21 of the sleeve-type fixed contact 2 is sleeved against the positioning contact part 101 of the fixed center fixed contact 1, so that the spring sleeve 4 and the protruding end of the blocking spring 3 and the blocking ball 5 pass through the groove 204 and are placed in the annular chute 203. The sleeve-type static contact 2 is rotated, the extending ends of the spring sleeve 4 and the clamping spring 3 and the clamping ball 5 slide along the annular chute 203 until the clamping ball 5 is clamped into the ball positioning hole 202, and the sleeve-type static contact 2 is positioned on the fixed center static contact 1.
The utility model discloses a screens spring 3 makes screens ball 5 block in the ball card hole, realizes the positioning action of telescopic static contact 2 and fixed center static contact 1, and the operative employee can need not any instrument bare-handed just can accomplish the model conversion, can effectively improve the speed of examining the conversion of static contact model in the circuit breaker inspection process, just can accomplish the conversion to the static contact model in twenty seconds, simplifies the inspection process, very big improvement inspection efficiency; meanwhile, the structure design greatly reduces the disassembly frequency of the screw hole of the static contact on the inspection cabinet and reduces the abrasion, the structure design is arranged on the side of the contact, the installation position of the static contact cannot be influenced even if the static contact is abraded and loosened, the position of the static contact of the sleeve cannot be changed even if the static contact of the sleeve is repeatedly pulled out, the positioning accuracy of the contact is ensured, and the product quality of the circuit breaker is greatly improved; the whole device has the advantages of simple structure, high reliability, easy assembly and convenient use.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. Can quick switching model take circuit breaker inspection cabinet static contact suit of auto-lock, including telescopic static contact (2) of fixed center static contact (1) and different models, fixed center static contact (1) rear end and inspection cabinet backplate (6) standard position fixed connection, its characterized in that: when in use, the sleeve type static contact (2) is directly and coaxially sleeved on the fixed center static contact (1), and the self-locking positioning of the relative position is realized through the elastic ball self-locking structure after the sleeve type static contact (2) and the fixed center static contact (1) are sleeved.
2. The circuit breaker inspection cabinet static contact set capable of fast model conversion and with self-locking function of claim 1, characterized in that: the fixed center static contact (1) comprises a positioning contact part (101), a positioning static contact fixing chassis (102) fixedly connected with a standard position of a rear baffle (6) of the inspection cabinet is arranged at the rear end of the positioning contact part (101), the positioning static contact fixing chassis (102) is fixedly connected with the rear baffle (6) of the inspection cabinet through screws, and a plurality of fixing screw holes (103) convenient for the screws to pass through are uniformly distributed on the circumference of the positioning static contact fixing chassis (102).
3. The circuit breaker inspection cabinet static contact set capable of rapidly converting models and having self-locking function according to claim 2, is characterized in that: the elastic ball self-locking structure between the sleeve type static contact (2) and the fixed center static contact (1) is as follows: a positioning static contact spring hole (104) is formed in the root of a positioning contact part (101) of the fixed center static contact (1), a spring sleeve (4) is matched inside the positioning static contact spring hole (104), a clamping spring (3) is installed inside the spring sleeve (4), one end of each of the spring sleeve (4) and the clamping spring (3) inside the spring sleeve extends out of the positioning static contact spring hole (104), and a clamping ball (5) is arranged on each of the spring sleeve (4) and the clamping spring (3); the center of the sleeve-type static contact (2) is provided with a sleeve hole (201) which is sleeved with the positioning contact part (101) of the fixed center static contact (1), and both sides of one end of the root part of the sleeve-type static contact (2) are radially provided with ball positioning holes (202); the inner wall of the trepanning (201) is provided with an annular sliding groove (203) which is convenient to extend out of the end and match the position-locking ball (5) with the spring sleeve (4) and the position-locking spring (3) so as to enable the end and the position-locking ball (5) to slide, and one end of the root of the trepanning (201) is provided with a groove (204) which is convenient to extend out of the end and match the position-locking ball (5) with the spring sleeve (4) and the position-locking spring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021479659.7U CN212461426U (en) | 2020-07-24 | 2020-07-24 | Circuit breaker inspection cabinet static contact sleeve set capable of rapidly converting model and having self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021479659.7U CN212461426U (en) | 2020-07-24 | 2020-07-24 | Circuit breaker inspection cabinet static contact sleeve set capable of rapidly converting model and having self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212461426U true CN212461426U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021479659.7U Active CN212461426U (en) | 2020-07-24 | 2020-07-24 | Circuit breaker inspection cabinet static contact sleeve set capable of rapidly converting model and having self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212461426U (en) |
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- 2020-07-24 CN CN202021479659.7U patent/CN212461426U/en active Active
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Address after: 721000 Plant 2, Panlong High-tech Innovation Service Center, Panlong Town, Jintai District, Baoji City, Shaanxi Province Patentee after: Elson Electric Co.,Ltd. Address before: 721000 No. 1609, unit 1, building 60, Gaoxin Avenue, high tech Development Zone, Baoji City, Shaanxi Province Patentee before: Shaanxi Elson Electric Co.,Ltd. |