CN114361823A - Anti-loosening terminal strip with indication function - Google Patents
Anti-loosening terminal strip with indication function Download PDFInfo
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- CN114361823A CN114361823A CN202210052358.3A CN202210052358A CN114361823A CN 114361823 A CN114361823 A CN 114361823A CN 202210052358 A CN202210052358 A CN 202210052358A CN 114361823 A CN114361823 A CN 114361823A
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- bottom plate
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- indication
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- 239000004020 conductor Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention relates to an anti-loosening terminal strip with an indication function, which comprises a terminal strip shell, a wire terminal hole and a needle-shaped terminal hole, wherein the wire terminal hole and the needle-shaped terminal hole are formed in the terminal strip shell; the top plate can be driven by the fastening screw to move up and down, and the wire is clamped by the elastic movement of the bottom plate. The bottom plate fixedly connected with instruction portion, instruction portion change the position along with the motion of bottom plate, indicate the position of bottom plate, and then instruct roof and bottom plate to the tight degree of clamp of wire. The terminal strip provided by the invention visually shows the clamping and loosening degrees of the termination, reminds maintainers of overhauling when the termination loosens to a certain degree, and reminds maintainers of whether to finish re-clamping during overhauling.
Description
Technical Field
The invention belongs to the technical field of circuit connection, and particularly relates to an anti-loosening terminal block with an indication function.
Background
In the processes such as industrial production and scientific research experiments, use terminal row wiring in the instrument or in the rack indispensable to this can realize the accurate wiring of work and neatly, guarantees that the wiring is correct, maintains the operation that equipment is stable.
However, in the process of wiring, if the terminal cannot be correctly terminated, for example, the terminal locking screw is not screwed down, so that poor contact is caused, the lead is moved to be separated from the terminal strip due to the tensile force of the lead, the screw is loosened due to the vibration and other factors existing in the working environment of the equipment, so that the circuit cannot be normally conducted, the equipment cannot normally operate, the equipment or workers may be seriously injured, and irreversible results are generated. Meanwhile, once the contact of the lead terminal is poor due to a certain condition, the terminal is pressed inside the terminal strip, so that an inspector is not easy to find out the equipment in the process of checking the equipment, and the defect is not easy to check.
Disclosure of Invention
Based on the above-mentioned shortcomings and drawbacks of the prior art, it is an object of the present invention to at least solve one or more of the above-mentioned problems of the prior art, in other words, to provide an indicating anti-loose terminal block that meets one or more of the above-mentioned needs.
In order to achieve the purpose, the invention adopts the following technical scheme:
an anti-loosening terminal block with an indication comprises a terminal block shell, wherein a plurality of groups of matched wire terminal holes and needle-shaped terminal holes are formed in the terminal block shell; the upper part and the lower part of the wire terminal hole are respectively provided with a top plate and a bottom plate which are opposite to each other, the top plate and the bottom plate form a clamping part for the wire terminal hole in an opposite way, and the top end of the needle-shaped terminal hole is electrically connected with a flexible conductor which is extended to the top plate; the top plate is in threaded connection with a fastening screw fixed on the terminal row shell, and the bottom plate is fixedly arranged on the terminal row shell through an elastic supporting piece and can elastically displace under the compression of the top plate; screwing the fastening screw to adjust the upper and lower positions of the top plate in the terminal row shell, further clamping the lead in the lead terminal hole by combining the elastic displacement of the bottom plate, and electrically connecting the lead with the needle-shaped terminal hole through the flexible conductor;
the bottom plate is fixedly connected with an indicating part, the indicating part changes position along with the movement of the bottom plate, the position of the bottom plate is indicated, and then the clamping degree of the top plate and the bottom plate to the lead is indicated.
Preferably, the indicating part comprises an indicating rack fixedly connected with the bottom plate and an indicating gear coupled to the terminal row shell, the indicating rack is meshed with the indicating gear, and a pointer is arranged on the indicating gear; when the bottom plate moves, the indicating rack drives the indicating gear to rotate, and then the position indicated by the pointer is changed.
As a further preferred scheme, an indication window used for indicating the position of the pointer is formed in the terminal strip shell, one part of the indication window is marked as a clamping area, when the pointer is located in the clamping area, the bottom plate is lower than a certain height, and the other part of the indication window is marked as a loosening area.
Preferably, a wire clamp is fixedly mounted at the inlet of the wire terminal hole, and the wire clamp is used for clamping the wire and preventing the wire from slipping off the wire terminal hole under the action of tension.
Preferably, the wire clamp has a rubber non-slip outer shell.
Preferably, the top plate and the bottom plate are respectively provided with one wire terminal hole for clamping all wires; or the wire terminal holes are divided into a plurality of groups, and each group is respectively provided with a top plate and a bottom plate.
As a further preferred solution, each bottom plate is fixedly connected with an indication part.
Preferably, the bottom of the terminal strip housing is provided with a mounting seat for mounting the terminal strip at a designated position.
As a further preferable mode, the mounting seat includes two fixing screws, and the fixing screws are tightened to mount the terminal block at a predetermined position.
Preferably, the flexible conductor is a copper wire.
Compared with the prior art, the invention has the beneficial effects that:
the anti-drop terminal strip with the indication visually shows the clamping and loosening degrees of the termination, reminds maintainers of overhauling when the termination loosens to a certain degree, and reminds maintainers of whether to finish re-clamping during overhauling;
the wire clamp prevents the wire from slipping due to being pulled.
Drawings
Fig. 1 is a schematic structural view of an anti-drop terminal block with indication according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a wire clamp according to an embodiment of the present invention;
fig. 3 is a plan view of an indicating anti-drop terminal block according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain the embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
Example (b):
the section view of the anti-drop terminal block with the indication is shown in fig. 1, and the anti-drop terminal block comprises a terminal block shell 10, wherein a row of six groups of wire terminal holes and needle-shaped terminal holes which are matched one by one are formed in the terminal block shell 10, and the wire terminal holes are horizontally opened outwards and used for inserting wires; and pin-type terminal holes vertically penetrate the bottom of the terminal block case 10 for inserting pin-type terminals.
A top plate 11 and a bottom plate 12 which are arranged oppositely are respectively arranged in the terminal row shell 10 and above and below each wire terminal hole, the wire terminal hole is positioned between the top plate 11 and the bottom plate 12, the opposite surfaces of the top plate 11 and the bottom plate 12 are clamped to form a clamping part for the wire terminal hole, and the top end of the pin-shaped terminal hole is electrically connected with a flexible conductor 14 which is extended to the top plate 11.
A fastening screw 1 is screwed on the terminal row shell 10 above each wire terminal hole, and each top plate 11 is also screwed on the corresponding fastening screw 1 in the terminal row shell 10. The fastening screw 1 and the terminal row shell 10 and the top plate 11 can rotate relatively, but the angle between the terminal row shell 10 and the top plate 11 is not changed when the fastening screw rotates; turning the tightening screw 1 enables the tightening screw 1 to move vertically in the terminal block case 10, thereby driving the top plate 11 screwed at the bottom thereof to move vertically.
The bottom plate 12 is mounted on the bottom of the inner side of the terminal block case 10 through the elastic supporting member 9, and the elastic supporting member 9 is fixedly connected with the bottom plate 12 and the terminal block case 10 through the positioning pin 9. The elastic support 9 supports the bottom plate 12 for elastic movement in the vertical direction. When the fastening screw 1 is screwed to move the top plate 11 downward, the top plate 11 gradually reduces the distance from the bottom plate 12 and can be further pressed downward, and the pressed bottom plate 12 can apply a force corresponding to the elastic movement distance to the top plate 11.
The flexible conductor 14 is electrically connected to the top end of the pin terminal hole 15 at the bottom of the terminal row housing 10, and the flexible conductor 14 may be a cable made of flexible material, such as a flexible copper wire. The other end of the flexible conductor 14 extends around the bottom of the top plate 11, moves with the top plate 11, and can be electrically connected to a wire clamped between the top plate 11 and the bottom plate 12.
In order to solve the problem that the existing terminal strip is difficult to overhaul, an indicating part is fixedly installed behind a bottom plate 12, the position of the indicating part is changed along with the movement of the bottom plate 12, the position of the bottom plate 12 is indicated, and the clamping degree of the top plate 11 and the bottom plate 12 to a lead is further indicated.
In the present embodiment, an implementation of the indication part is provided: the indicating part comprises an indicating rack 2 which is vertically arranged, the vertical part of the indicating rack 2 is provided with strip-shaped teeth, when the bottom plate 12 is pressed to move in the vertical direction, the indicating rack 2 also moves in the vertical direction, and then the strip-shaped teeth also move in the vertical direction. An indicating gear 6 is coupled on the terminal row shell 10, and the indicating gear 6 is meshed with the strip-shaped teeth, is immovable and can rotate; the indication gear 6 is fixedly provided with an extended pointer. When the bar-shaped teeth move in the vertical direction, the indicating gear 6 is driven to rotate, and the position of the pointer is changed, so that the pointer can indicate the current height of the bottom plate 12.
In order to show the clamping degree of the wires more clearly, as a modified scheme, the terminal row shell 10 is provided with an indicating window 4 which can partially expose the position of the pointer above the pointer, and the pointer is also divided into two parts, namely a clamping area 5 and a releasing area 3. When the base plate 12 is below a certain height, the grip area 5 of the pointer is below the indicator window 4 and exposed to the external viewing angle, and when the base plate 12 is above the certain height, the release area 3 of the pointer is below the indicator window 4 and exposed to the external viewing angle. As a further development, the clamping area 5 can be colored green and the release area 3 red. Furthermore, the indication window 4 is covered with transparent plastic, so that the dustproof and waterproof capability is realized while the position of the internal pointer is exposed.
Further, in order to simplify the installation of the terminal block of the present embodiment, two fixing screws 7 are further provided through both sides of the bottom of the terminal block housing 10, and corresponding fixing screw holes 20 are also provided at the device to be installed, and the pin terminals of the device are located at the bottom of the pin terminal holes 15 after the terminal block is installed, so that the pin terminals can be accurately inserted into the pin terminal holes 15 to be connected with the wires simply by correctly screwing the two fixing screws 7 of the terminal block of the present embodiment.
In order to further improve the firmness of the wire connection and prevent the wire from slipping out of the wire terminal hole under tension, as shown in fig. 1 and fig. 2, a wire clamp 16 is inserted through the insertion groove 13 in front of the entrance of the wire terminal hole, the handle part 18 is pressed to open the wire clamp 16, and the wire inserted into the wire terminal hole is clamped by the wire clamp 16 to prevent the wire from being pulled out of the wire terminal hole. Furthermore, a rubber anti-slip shell 17 with knurls is arranged at the clamping opening of the wire clamp 16 to increase the friction force with the wire and simultaneously protect the outer skin of the wire from being damaged, and the rubber anti-slip shell 17 is also arranged on the handle part 18 to facilitate the use of the wire clamp 16.
The terminal block using method of the present embodiment is as follows: the needle-shaped terminal head is firstly crimped before the wire is inserted into the wire terminal hole, after the metal part of the wire is completely inserted into the terminal block, the fastening screw 1 is tightened to enable the top plate 11 to move downwards, gradually approach and press the bottom plate 12, and the wire is clamped between the top plate and the bottom plate until the indication window 4 is displayed in green, namely the clamping area 5 of the pointer is just below the indication window 4. This means that the bottom plate 12 has now been pressed down to a certain height and the contact with the wires and the top plate 11 is sufficiently tight. The pin terminal holes 15 under the terminal block case 10 are then aligned with the pin terminals 19 of the device, and the set screws 7 are inserted into the set screw holes 20 of the device and tightened to complete the connection of the wires to the pin terminals on the device.
In use of the terminal block, as shown in the top view of fig. 3, if the bottom plate 12 is in sufficiently close contact with the wires and the top plate 11, the operator should view the green gripping area 5 from the indicator window 4. If the red loosening zone 3 is observed, it indicates that the fastening screw 1 corresponding to the indication window 4 has been loosened, and the connection condition of the wire needs to be checked. After ensuring correct insertion of the conductor, it is simply screwed down again until the indicator window 4 shows a green clamping area 5, and the loose conductor can easily be found and compressed again.
Example two:
the difference between the present embodiment and the first embodiment is: the top plate and the bottom plate are respectively provided with only one wire terminal hole which is clamped together. Alternatively, the wire terminal holes may be grouped, such as six wire terminal holes into three groups, each group having a pair of top and bottom plates and corresponding indicators.
The terminal strip reduces the number of fastening screws and indicating parts, and is simpler in structure and simpler and more convenient to use.
Other structures and methods of use can be found in embodiment one.
It should be noted that the above-mentioned embodiments are merely illustrative of the preferred embodiments and principles of the present invention, and those skilled in the art will appreciate that there are variations in the specific embodiments based on the ideas provided by the present invention, and these variations should be considered as the scope of the present invention.
Claims (10)
1. An anti-loosening terminal block with an indication function is characterized by comprising a terminal block shell, wherein a plurality of groups of matched wire terminal holes and needle-shaped terminal holes are formed in the terminal block shell; the upper part and the lower part of the wire terminal hole are respectively provided with a top plate and a bottom plate which are opposite to each other, the top plate and the bottom plate oppositely form a clamping part for the wire terminal hole, and the top end of the needle-shaped terminal hole is electrically connected with a flexible conductor which is extended to the top plate; the top plate is screwed with a fastening screw fixed on the terminal row shell, and the bottom plate is fixedly arranged on the terminal row shell through an elastic supporting piece and can be elastically displaced under the pressure of the top plate; screwing the fastening screw to adjust the upper and lower positions of the top plate in the terminal row shell, further clamping the lead in the lead terminal hole by combining the elastic displacement of the bottom plate, and electrically connecting the lead with the pin-shaped terminal hole through the flexible conductor;
the bottom plate is fixedly connected with an indicating part, the indicating part changes position along with the movement of the bottom plate to indicate the position of the bottom plate, and further indicates the clamping degree of the top plate and the bottom plate to the lead.
2. The anti-loosening terminal block with the indication as claimed in claim 1, wherein the indication part comprises an indication rack fixedly connected with a bottom plate and an indication gear coupled to the terminal block shell, the indication rack is engaged with the indication gear, and a pointer is arranged on the indication gear; when the bottom plate moves, the indicating rack drives the indicating gear to rotate, and then the position indicated by the pointer is changed.
3. The anti-loosening terminal block with the indicator of claim 2, wherein an indicator window for exposing the position of the indicator is formed on the terminal block shell, a part of the indicator is marked as a clamping area, when the bottom plate of the locking screw is lower than a clamping height, the indicator of the clamping area is exposed to the indicator window, and the other part of the indicator window is marked as a loosening area.
4. The terminal block with indication for preventing loosening of claim 1, wherein a wire clamp is fixedly installed at the entrance of the wire terminal hole, and the wire clamp is used for clamping the wire to prevent the wire from slipping off the wire terminal hole under the pulling force.
5. The tamper-evident terminal block of claim 1, wherein the wire clamp has a rubber non-slip housing.
6. The tamper-resistant terminal block with indication of claim 1, wherein the top plate and the bottom plate each have one, clamping all of the wire terminal holes; or the wire terminal holes are divided into a plurality of groups, and each group is respectively provided with one top plate and one bottom plate.
7. The anti-release terminal block with indication of claim 6, wherein each bottom plate is fixedly connected with one indication part.
8. The tamper-evident terminal block of claim 1, wherein the bottom of the terminal block housing is provided with a mounting seat for mounting the terminal block in a desired position.
9. The tamper-resistant terminal block with indicator of claim 8, wherein the mounting block includes two set screws, tightening of which mounts the terminal block in a desired position.
10. The tamper-evident terminal strip of claim 1, wherein the flexible conductor is a copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210052358.3A CN114361823A (en) | 2022-01-18 | 2022-01-18 | Anti-loosening terminal strip with indication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210052358.3A CN114361823A (en) | 2022-01-18 | 2022-01-18 | Anti-loosening terminal strip with indication function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114361823A true CN114361823A (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210052358.3A Pending CN114361823A (en) | 2022-01-18 | 2022-01-18 | Anti-loosening terminal strip with indication function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114361823A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498435A (en) * | 2022-09-27 | 2022-12-20 | 广东电网有限责任公司 | Terminal strip |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030199191A1 (en) * | 2002-04-22 | 2003-10-23 | Ward Bobby Gene | Wire retaining connector block |
| CN1617389A (en) * | 2003-11-14 | 2005-05-18 | 施耐德电器工业公司 | Electrical terminal and electrical protection apparatus containing such a terminal |
| US20100139760A1 (en) * | 2007-02-05 | 2010-06-10 | Stefan Giefers | Connection and Junction Box for a Solar Module |
| CN102394390A (en) * | 2011-07-08 | 2012-03-28 | 江门市创艺电器有限公司 | Wiring terminal and manufacture process thereof |
| CN110534930A (en) * | 2019-09-27 | 2019-12-03 | 宁波高松电子有限公司 | A kind of connecting terminal facilitating operation |
| CN113708096A (en) * | 2021-08-24 | 2021-11-26 | 恩尼特克电子科技(深圳)有限公司 | Wiring terminal |
-
2022
- 2022-01-18 CN CN202210052358.3A patent/CN114361823A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030199191A1 (en) * | 2002-04-22 | 2003-10-23 | Ward Bobby Gene | Wire retaining connector block |
| CN1617389A (en) * | 2003-11-14 | 2005-05-18 | 施耐德电器工业公司 | Electrical terminal and electrical protection apparatus containing such a terminal |
| US20100139760A1 (en) * | 2007-02-05 | 2010-06-10 | Stefan Giefers | Connection and Junction Box for a Solar Module |
| CN102394390A (en) * | 2011-07-08 | 2012-03-28 | 江门市创艺电器有限公司 | Wiring terminal and manufacture process thereof |
| CN110534930A (en) * | 2019-09-27 | 2019-12-03 | 宁波高松电子有限公司 | A kind of connecting terminal facilitating operation |
| CN113708096A (en) * | 2021-08-24 | 2021-11-26 | 恩尼特克电子科技(深圳)有限公司 | Wiring terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498435A (en) * | 2022-09-27 | 2022-12-20 | 广东电网有限责任公司 | Terminal strip |
| CN115498435B (en) * | 2022-09-27 | 2024-10-11 | 广东电网有限责任公司 | Terminal strip |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220415 |
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| RJ01 | Rejection of invention patent application after publication |