CN219957629U - Polarity conversion mechanism and clamping device for thermal power plant current transformer test - Google Patents
Polarity conversion mechanism and clamping device for thermal power plant current transformer test Download PDFInfo
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- CN219957629U CN219957629U CN202222990933.2U CN202222990933U CN219957629U CN 219957629 U CN219957629 U CN 219957629U CN 202222990933 U CN202222990933 U CN 202222990933U CN 219957629 U CN219957629 U CN 219957629U
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 title abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a polarity conversion mechanism and a clamping device for a current transformer test of a thermal power plant. According to the polarity transfer switch, the operation and the stop of an experiment are controlled through the push switch, the polarity transfer step of a current transformer in the experiment is reduced, the input wire is not easy to leak through the fastening of the fastening opening assembly, and the time spent by the original fastening of a bolt is saved.
Description
Technical Field
The utility model relates to the technical field of polarity conversion, in particular to a polarity conversion mechanism for a current transformer test of a thermal power plant.
Background
When the power plant is shut down and overhauled, the current transformer at intervals of the circuit breaker is subjected to volt-ampere characteristic experiments, wherein the volt-ampere characteristic experiments comprise the tests of the polarity and the transformation ratio of the current transformer, and the common experimental method is to simultaneously add the current transformer on the primary side and the secondary side winding side.
Most of current transformers are installed at the bottom of a switch interval in the existing experiment, the space is very narrow, an experimenter is required to climb into the bottom to conduct secondary wiring, the polarity of the current transformers is difficult to see clearly, if the polarity of a measuring result is reverse, an maintainer is required to repeatedly enter the bottom, wiring is changed, and therefore a lot of maintenance workload is increased.
Meanwhile, in the existing experiment, a method for fastening an electric wire interface by a bolt is generally adopted, the method is very complicated, the bolt is required to be loosened firstly when the wiring is changed, then the electric wire is required to be switched for fastening, in a narrow space, inconvenience in work and time is brought to workers, meanwhile, the workers are required to carry a screwdriver with them to bring a burden to the experimenters, and when the screwdriver is lost, the workers need to spend time to search for the screw to delay the progress of work.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
The present utility model has been made in view of the above and/or problems associated with polarity inversion in current transformer tests in existing thermal power plants.
Therefore, the utility model aims to solve the problem of how to solve the inconvenience of polarity switching of the current transformer in the experiment.
In order to solve the technical problems, the utility model provides the following technical scheme: the polarity switching mechanism for the thermal power plant current transformer test comprises a pressing unit, a pushing unit and a shell, wherein the pressing unit comprises a pressing switch, a rotating shaft assembly arranged at the bottom of the pressing switch, a first spring arranged at the outer side of the rotating shaft assembly, a swinging assembly arranged below the bottom of the rotating shaft assembly, a No. 1 electric wire connecting port, and the pushing unit comprises a fixed block, a moving block assembly, a third spring arranged between the fixed block and the moving block assembly, and the shell.
As a preferable scheme of the polarity switching mechanism for the thermal power plant current transformer test, the polarity switching mechanism comprises the following components: the rotating shaft assembly is rotationally connected below the pressing switch, the first spring is placed on the outer side of the rotating shaft assembly, and the top end of the first spring is fixedly arranged below the shell.
As a preferable scheme of the polarity switching mechanism for the thermal power plant current transformer test, the polarity switching mechanism comprises the following components: the fixed block is fixedly arranged on the inner side of the bottom of the shell, the moving block assembly is movably arranged on the inner side of the bottom of the shell, and the third spring is fixedly connected with the fixed block and the moving block assembly.
As a preferable scheme of the polarity switching mechanism for the thermal power plant current transformer test, the polarity switching mechanism comprises the following components: the rotating shaft assembly comprises a rotating shaft, a fixed column is arranged on the rotating shaft in a sliding mode, a stirring column is fixedly arranged at the bottom of the rotating shaft, and the fixed column is fixedly connected with the shell.
As a preferable scheme of the polarity switching mechanism for the thermal power plant current transformer test, the polarity switching mechanism comprises the following components: the swing assembly comprises a swing main body, and toggle columns are arranged on two sides above the swing main body.
As a preferable scheme of the polarity switching mechanism for the thermal power plant current transformer test, the polarity switching mechanism comprises the following components: the swing main body is rotationally connected with the rotating column, the rotating column is fixedly connected with the shell, the rotating column is movably connected with the swing column, a second spring is arranged outside the swing column, and a pushing block is arranged at the bottom of the swing column.
As a preferable scheme of the polarity switching mechanism board for the thermal power plant current transformer test, the utility model comprises the following steps: the movable block assembly comprises a movable block which is movably connected to the inner side of the bottom of the shell.
As a preferable scheme of the polarity switching mechanism for the thermal power plant current transformer test, the polarity switching mechanism comprises the following components: the movable block is connected with a connecting wire, an iron block is arranged in front of the movable block, and a No. 2 wire connecting port is arranged at the bottom of the movable block.
The utility model has the beneficial effects that: the polarity conversion of the current transformer can be realized through the change-over switch without repeatedly changing wiring, so that the time of the experiment is saved, and the experiment is more convenient to carry out smoothly.
The experiment is convenient, the difficulty of repeated wiring due to narrow switch intervals is solved, the burden is reduced for maintenance staff, and the smooth performance of the experiment is ensured.
The present utility model has been made in view of the above and/or problems occurring in the prior art clamping devices.
Therefore, the utility model aims to solve the problems that the input wire cannot be firmly fixed on the polarity conversion switch and is easy to loosen at present.
In order to solve the technical problems, the utility model provides the following technical scheme: the clamping device comprises a polarity conversion mechanism for a thermal power plant current transformer test, and further comprises a tight opening assembly, wherein the tight opening assembly comprises two tight opening moving blocks, two tight opening fixing blocks and two fourth springs, and the shape of a No. 1 electric wire connecting opening is a notch formed by the two tight opening moving blocks.
As a preferred embodiment of the medical forearm splint according to the utility model, wherein: the bottom of any one of the tight-opening moving blocks is connected with a communication wire.
The utility model has the beneficial effects that: the clamping device is designed, when the wire is required to be connected, the switch is manually pulled out, the shape of the wire connection port is enlarged, the wire is placed in the clamping device, the wire connection port of the clamping device can reset and clamp the wire, the wire cannot fall off in the use process, and meanwhile, the switch is manually pulled out again in order when the wire is required to be switched, and the wire is connected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a block diagram of a polarity switching mechanism and a clamping device for a current transformer test in a thermal power plant.
Fig. 2 is a structural view of a rotating shaft assembly of a pressing unit of a polarity switching mechanism and a clamping device for a current transformer test in a thermal power plant.
Fig. 3 is a diagram showing a swing assembly structure of a pressing unit of a polarity switching mechanism and a clamping device for a current transformer test in a thermal power plant.
Fig. 4 is a block diagram of a pushing unit of a polarity switching mechanism and a clamping device for a current transformer test in a thermal power plant.
Fig. 5 is a block diagram of a clamping assembly of a polarity switching mechanism and a clamping device for a current transformer test in a thermal power plant.
Fig. 6 is a block diagram of a tight mouth assembly of a polarity switching mechanism and a clamping device for a current transformer test in a thermal power plant.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 4, a polarity switching mechanism for a current transformer test of a thermal power plant according to a first embodiment of the present utility model includes a pressing unit 100 and a pushing unit 200, and 4 pressing units 100 and 4 pushing units are respectively provided.
The pressing unit 100 comprises a pressing switch 101, the pressing switch 101 is rotationally connected with a rotating shaft assembly 102, a first spring 103 is movably mounted at the bottom of the pressing switch, the first spring 103 is movably mounted outside the rotating shaft assembly 102, the bottom of the pressing switch is clamped to the rotating shaft assembly 102, the pressing switch can normally bounce, a swinging assembly 104 is fixedly mounted at the bottom of the rotating shaft assembly 102, the swinging assembly 104 is movably connected with a moving block assembly 202 of a pushing unit 200, the moving block assembly 202 is in charge of circuit communication of a polarity conversion mechanism, the pushing unit 200 further comprises a fixed block 201, and a third spring 203 is fixedly mounted between the moving block assembly 202 and the fixed block 201.
When the thermal power plant current transformer test device is used, an electric wire is inserted into a No. 1 electric wire connection port, the push switch 101 is pushed, the push switch 101 drives the first spring 103 to extrude, meanwhile, the rotating shaft assembly 102 is driven to rotate and shift, the rotating shaft assembly 102 shifts and drives the swinging assembly 104 to push the moving block assembly 202 to move forward to a designated position, circuit connection is achieved, and when a polarity conversion mechanism which does not need a thermal power plant current transformer test works, the push switch 101 is pushed, the rotating shaft assembly 102 is driven to reset the swinging assembly 104, so that the moving block assembly 202 is reset, and a circuit is disconnected.
Example 2
Referring to fig. 1-4, a second embodiment of the present utility model is based on the previous embodiment.
Specifically, the outer side of the rotating shaft assembly 102 is fixedly provided with the first spring 103, the top end of the first spring 103 is fixedly connected to the bottom of the shell 300, the shell 300 is made of ABS plastic, and the ABS plastic has the advantages of durability and difficult corrosion and is suitable for workplaces such as thermal power plants.
The rotating shaft assembly 102 comprises a rotating shaft 102a, the rotating shaft 102a is rotatably arranged on the inner side of the top end of the shell 300, a fixed column 102b is slidably arranged on the outer wall of the rotating shaft 102a, the fixed column 102b is fixedly arranged on the inner wall of the front face of the shell 300 so as to prevent falling, a stirring column 102c is fixedly arranged at the bottom of the rotating shaft 102a, the stirring column 102c is movably connected with a stirring column 104b, a swinging main body 104a is fixedly connected with a stirring column 104b, one end of the rotating column 104c is fixedly arranged on one side of the back face of the shell, the other end of the rotating column 104c is fixedly arranged on the inner side of the swinging main body 104a, a swinging column 104d is movably arranged on the upper and lower sides of the rotating column 104c, the swinging column 104d is extruded by a second spring 104e during operation, the pushing block 104f at the top of the rotating column is movably connected with a moving block 202a, the moving block 202a is movably connected to the bottom of the shell 300, the moving block 202c is moved to an iron block 202c under the operation of the pushing block 104f, and a circuit of the No. 1 electric wire connecting port 105 and No. 2 electric wire connecting port 202d is conducted.
When the electric wire connection port 105 is connected with an electric wire in use, the push switch 101 is pressed, the first spring 103 is extruded, the fixed column 102b simultaneously slides upwards at the concave position of the outer wall of the rotating shaft 102a, the stirring column 102c is stirred to the opposite position and is simultaneously changed by the position of the stirring column 104b, the second spring 104e receives extrusion to push the swinging column 104d forwards, the pushing block 104f at the bottom of the swinging column 104d pushes the moving block 202a to move to the iron sheet 202c along with the push block, and the electric wire is conveniently switched when the polarity is switched by connecting the electric wire 202 b.
Example 3
Referring to fig. 5-6, a third embodiment of the present utility model is based on the first two embodiments.
Specifically, the number 1 electric wire connection port 105 is composed of two symmetrical tight-mouth moving blocks 401, which are positioned in front of the push button switch 101 to compress the space and reduce the volume of the device, the tight-mouth moving blocks 401 are correspondingly provided with tight-mouth fixing blocks 402, the tight-mouth fixing blocks 402 are fixedly arranged on the inner side of the top of the shell 300, a fourth spring 403 is fixedly arranged between the tight-mouth moving blocks 401 and the tight-mouth fixing blocks 402, the bottom of any tight-mouth moving block 401 is welded with a communication electric wire 202b for communicating with the number 2 electric wire connection port 202d after the push button switch 101 is pressed,
when the clamping device is used, the two tight-mouth moving blocks 401 are shifted to opposite directions, the fourth spring 403 is extruded to enlarge the No. 1 electric wire connecting port 105, the electric wires are inserted and then loosened, the springs extend to two ends due to inertia, so that the electric wires at the No. 1 electric wire connecting port 105 are fastened, the bottom of the electric wire tight-mouth moving block 401 is welded and communicated with the electric wires 202b, and the purpose of the clamping device is achieved.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (10)
1. Polarity switching mechanism of thermal power plant's current transformer test, its characterized in that: comprising the steps of (a) a step of,
the pressing unit (100) comprises a pressing switch (101), a rotating shaft assembly (102) arranged at the bottom of the pressing switch (101), a first spring (103) arranged at the outer side of the rotating shaft assembly (102), a swinging assembly (104) arranged below the bottom of the rotating shaft assembly (102) and a number 1 electric wire connecting port (105);
a pushing unit (200) including a fixed block (201), a moving block assembly (202), and a third spring (203) disposed between the fixed block (201) and the moving block assembly (202); the method comprises the steps of,
a housing (300).
2. The polarity switching mechanism for a thermal power plant current transformer test of claim 1, wherein: the rotating shaft assembly (102) is rotationally connected below the push switch (101), the first spring (103) is placed outside the rotating shaft assembly (102), and the top end of the first spring is fixedly arranged below the shell (300).
3. The polarity switching mechanism for a thermal power plant current transformer test of claim 2, wherein: the fixed block (201) is fixedly arranged on the inner side of the bottom of the shell (300), the movable block assembly (202) is movably arranged on the inner side of the bottom of the shell (300), and the third spring (203) is fixedly connected with the fixed block (201) and the movable block assembly (202).
4. A thermal power plant current transformer test polarity switching mechanism according to claim 2 or 3, wherein: the rotating shaft assembly (102) comprises a rotating shaft (102 a), a fixed column (102 b) is arranged on the rotating shaft (102 a) in a sliding mode, a stirring column (102 c) is fixedly arranged at the bottom of the rotating shaft (102 a), and the fixed column (102 b) is fixedly connected with the shell (300).
5. The polarity switching mechanism for a thermal power plant current transformer test of claim 4, wherein: the swinging assembly (104) comprises a swinging main body (104 a), and toggle columns (104 b) are arranged on two sides above the swinging main body (104 a).
6. The polarity switching mechanism for a thermal power plant current transformer test of claim 5, wherein: the swing body (104 a) is rotationally connected with the rotating column (104 c), the rotating column (104 c) is fixedly connected with the shell (300), the rotating column (104 c) is movably connected with the swing column (104 d), a second spring (104 e) is arranged outside the swing column (104 d), and a pushing block (104 f) is arranged at the bottom of the swing column.
7. The polarity switching mechanism for a thermal power plant current transformer test of claim 5 or 6, wherein: the moving block assembly (202) comprises a moving block (202 a), and the moving block (202 a) is movably connected to the inner side of the bottom of the shell (300).
8. The polarity switching mechanism for a thermal power plant current transformer test of claim 7, wherein: the mobile block (202 a) is connected with a connecting wire (202 b), an iron block (202 c) is arranged in front of the mobile block (202 a), and a No. 2 wire connecting port (202 d) is arranged at the bottom of the mobile block (202 a).
9. Clamping device, its characterized in that: a polarity switching mechanism comprising the thermal power plant current transformer test of any one of claims 1 to 7, further comprising,
the tight mouth assembly (400) comprises two tight mouth moving blocks (401), two tight mouth fixing blocks (402) and two fourth springs (403), and the shape of the No. 1 electric wire connecting port (105) is a notch formed by the two tight mouth moving blocks (401).
10. The clamping device as recited in claim 9, further characterized in that: the bottom of any one of the tight-opening moving blocks (401) is connected with a communication wire (202 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222990933.2U CN219957629U (en) | 2022-11-10 | 2022-11-10 | Polarity conversion mechanism and clamping device for thermal power plant current transformer test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222990933.2U CN219957629U (en) | 2022-11-10 | 2022-11-10 | Polarity conversion mechanism and clamping device for thermal power plant current transformer test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219957629U true CN219957629U (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222990933.2U Active CN219957629U (en) | 2022-11-10 | 2022-11-10 | Polarity conversion mechanism and clamping device for thermal power plant current transformer test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219957629U (en) |
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2022
- 2022-11-10 CN CN202222990933.2U patent/CN219957629U/en active Active
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