Electrification prompting device for electrical terminal strip

Abstract

The utility model relates to the technical field of power station electrical switch cabinets, and particularly discloses an electrical terminal strip electrification prompting device which comprises a shell, a warning lamp, a hollow sliding strip, a copper terminal, a handheld part and an adjusting assembly. The warning lamp is installed in the middle of the upper surface of the shell. The two hollow sliding strips are slidably arranged at the two ends of the shell correspondingly, and the ends, away from the shell, of the hollow sliding strips are provided with mounting columns. The copper terminal is arranged at the bottom of the mounting column and is connected with the wiring end of the warning lamp through the spring wire; the handheld part is arranged on the shell; the adjusting assembly is arranged on the handheld part and connected with the hollow sliding strip. According to the utility model, through arranging the transverse plate of the hand-held part and the U-shaped pressing plate of the adjusting assembly, on the premise that the device is held by only one hand, the distance between two copper terminals in live detection can be adjusted so as to be matched with a corresponding terminal strip, the live detection is smoothly completed, and the problem that the live detection process needs to be operated by two hands is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power station electrical switch cabinets, in particular to a live prompting device for electrical terminal blocks. Background Art

[0002] The safe maintenance of the relay protection system is an important part of the maintenance of the power system. In view of the particularity of equipment such as relay protection devices, some important circuits are still energized during maintenance work, and there will be voltage on the terminal block on the voltage transformer side. When maintenance personnel tighten screws or perform other work on the live terminal block, they must first perform live detection to reduce the risk of electric shock.

[0003] Although the existing live detection devices can perform live detection well, most of them require the coordinated operation of both hands and are relatively expensive. When maintenance personnel need to inspect some terminal blocks installed at high places, they often need to use climbing tools such as ladders, and there are certain inconveniences in two-handed detection.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention and does not constitute any limitation to the present invention. Utility Model Content

[0005] In view of the shortcomings of the prior art mentioned above, the utility model provides an electrical terminal block live warning device. By setting a horizontal plate of the hand-held part and a U-shaped pressing plate of the adjustment component, it is possible to adjust the distance between the two copper terminals in the live detection to adapt to the corresponding terminal block while holding the device with only one hand, thereby successfully completing the live detection and solving the problem of needing two hands to operate during the live detection process.

[0006] The utility model provides an electrical terminal block live warning device, comprising a shell, a warning light, a hollow slide bar, a copper terminal, a hand-held part and an adjustment component; the warning light is installed in the middle of the upper surface of the shell, and is used to remind maintenance personnel whether there is a risk of electric shock; two hollow slide bars are respectively slidably installed at the two ends of the shell, and a mounting column is installed at one end of the hollow slide bar away from the shell; the copper terminal is installed at the bottom of the mounting column, and is connected to the wiring terminal of the warning light through a spring wire, and the spring wire is arranged along the inside of the shell, the slide bar and the mounting column; the hand-held part is installed on the shell; the adjustment component is installed on the hand-held part and connected to the hollow slide bar.

[0007] In one embodiment of the present invention, the hand-held portion includes a hollow vertical plate and a horizontal plate. The two hollow vertical plates are mounted on the housing and located on both sides of the warning light; the horizontal plate is connected to the top ends of the two hollow vertical plates.

[0008] In one embodiment of the utility model, the adjustment component includes a U-shaped pressing plate, a pull rod and a first spring. The two ends of the U-shaped pressing plate are correspondingly slidably installed in two hollow vertical plates; the two ends of the pull rod are respectively hingedly installed on the U-shaped pressing plate and the hollow sliding bar; the first spring is installed in the hollow vertical plate, and the two ends of the first spring are respectively connected to the shell and the U-shaped pressing plate.

[0009] In one embodiment of the utility model, the hollow slide bar and the U-shaped pressing plate are slidably mounted inside the shell and the hollow vertical plate respectively, and the shell and the hollow vertical plate are respectively provided with a slide groove for the hinged end of the pull rod to move.

[0010] In one embodiment of the utility model, a locking assembly is further included. Two locking assemblies are symmetrically mounted at both ends of the horizontal plate and are clamped with the U-shaped pressing plate in the hollow vertical plate.

[0011] In one embodiment of the utility model, the locking assembly includes a card plate, a second spring and a pressing block. The card plate is slidably installed in a limit groove opened in the horizontal plate and extends toward the U-shaped pressing plate along the opening of the limit groove; the second spring is connected between the card plate and the inner wall of the limit groove; the pressing block is slidably installed on the horizontal plate, and the pressing block extends into the limit groove and abuts against the corresponding oblique groove on the card plate; wherein, the end of the card plate extending out of the limit groove is engaged with the corresponding card groove on the U-shaped pressing plate, and the card plate is moved and the second spring is compressed by pressing the pressing block.

[0012] In an embodiment of the present invention, the pressing block is located on a side of the transverse plate facing the housing.

[0013] In an embodiment of the present invention, the distance between the two pressing blocks is not less than 10 cm.

[0014] In one embodiment of the present invention, a rubber pad is installed on the upper surface of the U-shaped pressing plate.

[0015] In an embodiment of the present invention, the U-shaped pressing plate, the horizontal plate, the hollow vertical plate, the first spring and the second spring are all made of insulating materials.

[0016] The beneficial effects of the present invention are as follows: by providing a horizontal plate of the hand-held part and a U-shaped pressing plate of the adjusting component, the horizontal plate and the U-shaped pressing plate can be held with one hand, so that the U-shaped pressing plate and the hollow vertical plate can slide relative to each other, thereby driving the two pull rods to move, so that the two hollow slide bars can move away from each other; conversely, when the pressing force is reduced, the two hollow slide bars can move closer to each other, and the distance between the two copper terminals can be adjusted to insert them into the terminal holes of the terminal row, so that the live detection can be successfully completed under the premise of holding the device with only one hand.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the live reminder device of the electrical terminal block in the utility model;

[0020] Figure 2 It is a front cross-sectional schematic diagram of the live terminal block reminder device in the utility model;

[0021] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0022] In the figure: 100, shell; 101, warning light; 102, spring wire; 103, slide groove; 110, hollow slide bar; 120, mounting column; 121, copper terminal; 200, handle; 210, hollow vertical plate; 220, horizontal plate; 221, limit groove; 300, adjustment component; 310, U-shaped pressing plate; 311, rubber pad; 320, pull rod; 330, first spring; 400, locking component; 410, card plate; 411, inclined groove; 420, second spring; 430, pressing block. DETAILED DESCRIPTION

[0023] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementations, rather than to limit the scope of protection of the present invention.

[0024] See also Figures 1 to 3. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model, so they have no substantial technical significance. Any structural modification, change in proportional relationship, or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as position and quantitative relationship quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0025] See also Figure 1 and Figure 2 The utility model provides an electrical terminal block live warning device, comprising a shell 100, a warning light 101, a hollow slide bar 110, a copper terminal 121, a hand-held part 200 and an adjustment component 300; the warning light 101 is installed in the middle of the upper surface of the shell 100 to remind maintenance personnel whether there is a risk of electric shock; two hollow slide bars 110 are slidably installed at both ends of the shell 100, and a mounting column 120 is installed at one end of the hollow slide bar 110 away from the shell 100; the copper terminal 121 is installed at the bottom of the mounting column 120 and is connected to the wiring terminal of the warning light 101 through a spring wire 102, and the spring wire 102 is arranged along the inside of the shell 100, the slide bar and the mounting column 120; the hand-held part 200 is installed on the shell 100; the adjustment component 300 is installed on the hand-held part 200 and connected to the hollow slide bar 110.

[0026] Specifically, in the embodiment of the utility model, when it is necessary to test the live condition of the electrical terminal block, first hold the hand-held portion 200 and the adjustment component 300 with one hand, and change the position of the two hollow sliders 110 at both ends of the housing 100 through the adjustment component 300 on the hand-held portion 200, and then adjust the distance between the copper terminals 121 on the two hollow sliders 110, so that the distance between the two copper terminals 121 can be adapted to the corresponding terminal block, and then the two copper terminals 121 can be inserted into the terminal holes of the terminal block at the same time for live detection. The spring wire 102 arranged therein has good ductility and will not be broken as the distance between the copper terminal 121 and the warning light 101 changes. In this way, the live detection can be successfully completed under the premise of only using one hand to hold the live warning device of the electrical terminal block.

[0027] Furthermore, the handheld portion 200 includes a hollow vertical plate 210 and a horizontal plate 220 . The two hollow vertical plates 210 are mounted on the housing 100 and are located on both sides of the warning light 101 . The horizontal plate 220 is connected to the top ends of the two hollow vertical plates 210 .

[0028] Specifically, when conducting a live condition test of an electrical terminal block, on the one hand, the height of the mounting posts 120 at both ends of the shell 100 forms an isolation from the electrical components, and on the other hand, the hollow vertical plate 210 is provided to increase the distance between the horizontal plate 220 and the shell 100. When holding the horizontal plate 220 during use, accidental touching of the terminal block during detection can be further avoided, thereby improving the safety during detection.

[0029] Furthermore, the adjustment assembly 300 includes a U-shaped pressing plate 310, a pull rod 320 and a first spring 330. The two ends of the U-shaped pressing plate 310 are correspondingly slidably installed in the two hollow vertical plates 210; the two ends of the pull rod 320 are respectively hingedly installed on the U-shaped pressing plate 310 and the hollow slide bar 110; the first spring 330 is installed in the hollow vertical plate 210, and the two ends of the first spring 330 are respectively connected to the shell 100 and the U-shaped pressing plate 310.

[0030] Specifically, in the embodiment of the utility model, when in use, the hand-held portion 200 is held on the horizontal plate 220 and the U-shaped pressing plate 310 of the adjustment component 300, and the four fingers are held together to hold the horizontal plate 220, and the thumb presses the U-shaped pressing plate 310, so that the symmetrical plate bodies at both ends of the U-shaped pressing plate 310 respectively slide relative to the corresponding hollow vertical plates 210, and at the same time, the U-shaped pressing plate 310 drives the two pull rods 320 to move, and the angle between the pull rods 320 and the corresponding hollow vertical plates 210 becomes larger, so that the two hollow slides 110 move away from each other, and at the same time, the first spring 330 in the hollow vertical plate 210 is compressed, and vice versa, the pressing force is reduced, and the first spring 330 bounces up to drive the U-shaped pressing plate 310 to move and reset, and drive the two hollow slides 110 to move closer to each other through the pull rod 320. In this way, the distance between the copper terminals 121 on the mounting posts 120 at the ends of the two hollow slide bars 110 can be adjusted through the above operation, so as to be inserted into the terminal holes on the electrical terminal blocks with different spacings for live detection.

[0031] It should be noted that in this embodiment (not shown in the drawings), the hollow slide 110 and the U-shaped pressing plate 310 are respectively mounted on the outside of the shell 100 and the hollow vertical plate 210, so that the two ends of the pull rod 320 can be directly hinged on the hollow slide 110 and the U-shaped pressing plate 310, respectively, thereby realizing the transmission between the U-shaped pressing plate 310 and the hollow slide 110.

[0032] See also Figure 1 and Figure 2 In one embodiment, the hollow slide bar 110 and the U-shaped pressing plate 310 are slidably mounted inside the shell 100 and the hollow vertical plate 210, respectively. The shell 100 and the hollow vertical plate 210 are respectively provided with a slide groove 103 for the hinged end of the pull rod 320 to move.

[0033] Specifically, by respectively inserting the hollow slide bar 110 and the U-shaped pressing plate 310 into the shell 100 and the hollow vertical plate 210, and cooperating with the slide groove 103 opened on the shell 100 and the hollow vertical plate 210, the movement range of the hollow slide bar 110 and the U-shaped pressing plate 310 can be limited to prevent them from being separated from the shell 100, thereby ensuring stability during use.

[0034] See also Figure 3 In one embodiment, the invention further includes a locking assembly 400, two locking assemblies 400 are symmetrically mounted at both ends of the horizontal plate 220, and are engaged with the U-shaped pressing plate 310 in the hollow vertical plate 210. The two locking assemblies 400 can simultaneously lock both sides of the U-shaped pressing plate 310 through the two hollow vertical plates 210, further improving the stability during use. Moreover, by engaging and locking the U-shaped pressing plate 310 with the locking assembly 400, the U-shaped pressing plate 310 can be prevented from sliding frequently in a non-working state, thereby preventing unnecessary wear.

[0035] See also Figure 3 In one embodiment, the locking assembly 400 includes a card plate 410, a second spring 420 and a pressing block 430. The card plate 410 is slidably mounted in the limiting groove 221 opened in the horizontal plate 220 and extends toward the U-shaped pressing plate 310 along the opening of the limiting groove 221; the second spring 420 is connected between the card plate 410 and the inner wall of the limiting groove 221; the pressing block 430 is slidably mounted on the horizontal plate 220, and the pressing block 430 extends into the limiting groove 221 and abuts against the corresponding inclined groove 411 on the card plate 410; wherein, the end of the card plate 410 extending out of the limiting groove 221 is engaged with the corresponding card groove on the U-shaped pressing plate 310, and the card plate 410 is moved and the second spring 420 is compressed by pressing the pressing block 430.

[0036] Furthermore, the pressing block 430 is located on the side of the horizontal plate 220 facing the housing 100. The distance between the two pressing blocks 430 is not less than 10 cm.

[0037] Specifically, by applying pressure on the pressing block 430, the pressing block 430 is pressed against the inclined groove 411, driving the clamping plate 410 to move toward the inside of the limiting groove 221 to disengage from the clamping groove on the U-shaped pressing plate 310, and compressing the second spring 420 to deform. At this time, the U-shaped pressing plate 310 can be moved to adjust its position relative to the hollow vertical plate 210, thereby adjusting the distance between the two copper terminals 121 for use. When the U-shaped pressing plate 310 is reset, the clamping plate 410 is re-embedded into the clamping groove under the elastic force of the second spring 420.

[0038] It should be noted that the card slot can be set only at the positions where the two ends of the U-shaped pressing plate 310 extend into the hollow vertical plate 210, so as to lock the limit when not in use. At this time, the distance between the two copper terminals 121 is controlled by holding the U-shaped pressing plate 310 to change the distance between the horizontal plate 220, so as to insert the corresponding position on the electrical terminal block for live detection. And in the process of live detection after being inserted into the terminal hole, the elastic force of the first spring 330 is used to make the U-shaped pressing plate 310 have a tendency to slide relative to the hollow vertical plate 210, and is transmitted to the hollow slide bar 110 through the pull rod 320, thereby generating an interaction force between the two copper terminals 121 against the terminal hole, so that the live reminder device of the electrical terminal block has a certain clamping and fixing effect, and the gripping part can be released at this time to perform other operations.

[0039] Similarly, multiple slots (not shown in the drawings) can be set at the positions where the two ends of the U-shaped pressing plate 310 extend into the hollow vertical plate 210, and the distance between adjacent slots can be matched with the distance between the terminal holes on the electrical terminal block. Therefore, according to the distance between the terminal holes to be detected, the distance between the two copper terminals 121 can be adjusted to the distance between the corresponding terminal holes through the pressing block 430 on the holding part, thereby facilitating the measurement of the electrical conductivity between multiple terminal holes with the same distance.

[0040] Furthermore, the pressing block 430 is arranged on the side of the horizontal plate 220 facing the housing 100, that is, the position of the thumb of the holding hand on the U-shaped pressing plate 310 facing away, and then the pressing operation is performed by the hand in accordance with the holding posture. The distance between the two pressing blocks 430 is set to be not less than 10 cm, which is about the distance between the little finger and index finger of an adult when they are fully extended. Such a design achieves a foolproof effect to ensure that the maintenance personnel use the correct gesture, that is, the little finger and index finger press the corresponding pressing block 430 respectively, before using the device, avoiding electric shock caused by improper operation, and further improving the safety performance of the device. Therefore, the distance between the two pressing blocks 430 is not limited to 10 cm. According to the hand size corresponding to different body shapes, it is also acceptable to set a size less than 10 cm to meet the above-mentioned distance between the little finger and index finger when they are fully extended, which will not be elaborated here.

[0041] The upper surface of the U-shaped pressing plate 310 is provided with a rubber pad 311. The U-shaped pressing plate 310, the horizontal plate 220, the hollow vertical plate 210, the first spring 330 and the second spring 420 are all made of insulating materials. The rubber pad 311 can improve the hand feel when holding and bring a better operating experience. The insulating material can prevent electric shock and further improve the safety performance during use.

[0042] In summary, the utility model provides a device for reminding that an electrical terminal block is charged. By setting the horizontal plate 220 of the handheld part 200 and the U-shaped pressing plate 310 of the adjusting component 300, the horizontal plate 220 can be held by one hand, and the U-shaped pressing plate 310 can be pressed with the thumb to make the U-shaped pressing plate 310 and the hollow vertical plate 210 slide relative to each other, driving the two pull rods 320 to move, so that the two hollow slide bars 110 move away from each other. On the contrary, if the pressing force is reduced, the two hollow slide bars 110 will move closer to each other, so that the distance between the two copper terminals 121 can be adapted to the corresponding terminal block, and the two copper terminals 121 can be inserted into the terminal holes of the terminal block at the same time. The device can smoothly complete the charge detection under the premise of holding the device with one hand, and the device has a simple structure and low cost, which overcomes the disadvantage that the charge detection needs to be held with both hands, thereby achieving the effect of improving work efficiency.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A device for reminding that an electrical terminal block is energized, characterized in that: include: Housing (100); A warning light (101), the warning light (101) being mounted on the middle portion of the upper surface of the housing (100); A hollow slide bar (110), wherein two of the hollow slide bars (110) are slidably mounted on two ends of the housing (100), and a mounting column (120) is mounted on one end of the hollow slide bar (110) away from the housing (100); a copper terminal (121), the copper terminal (121) being mounted at the bottom of the mounting column (120) and connected to a connection terminal of the warning light (101) via a spring wire (102), and the spring wire (102) being arranged along the inside of the housing (100), the slide bar and the mounting column (120); A handheld part (200) mounted on the housing (100); An adjustment component (300) is mounted on the handheld portion (200) and connected to the hollow slide bar (110).

2. The electrical terminal block live reminder device according to claim 1, characterized in that: The handheld part (200) comprises: Hollow vertical plates (210), two of the hollow vertical plates (210) are mounted on the housing (100) and are located on both sides of the warning light (101); A horizontal plate (220), wherein the horizontal plate (220) is connected to the top ends of the two hollow vertical plates (210).

3. The electrical terminal block live reminder device according to claim 2, characterized in that: The adjustment component (300) comprises: A U-shaped pressing plate (310), wherein two ends of the U-shaped pressing plate (310) are correspondingly slidably mounted in the two hollow vertical plates (210); A pull rod (320), the two ends of which are hingedly mounted on the U-shaped pressing plate (310) and the hollow sliding bar (110) respectively; A first spring (330), wherein the first spring (330) is installed in the hollow vertical plate (210), and two ends of the first spring (330) are respectively connected to the housing (100) and the U-shaped pressing plate (310).

4. The electrical terminal block live reminder device according to claim 3, characterized in that: The hollow slide bar (110) and the U-shaped pressing plate (310) are respectively slidably mounted inside the shell (100) and the hollow vertical plate (210), and the shell (100) and the hollow vertical plate (210) are respectively provided with a slide groove (103) for the hinged end of the pull rod (320) to move.

5. The electrical terminal block live reminder device according to claim 4, characterized in that: It also includes a locking assembly (400), wherein two locking assemblies (400) are symmetrically mounted at two ends of the transverse plate (220) and are clamped with the U-shaped pressing plate (310) in the hollow vertical plate (210).

6. The electrical terminal block live reminder device according to claim 5, characterized in that: The locking assembly (400) comprises: A clamping plate (410), the clamping plate (410) being slidably mounted in a limiting groove (221) provided in the transverse plate (220) and extending toward the U-shaped pressing plate (310) along an opening of the limiting groove (221); A second spring (420), the second spring (420) being connected between the clamping plate (410) and the inner wall of the limiting groove (221); A pressing block (430), the pressing block (430) is slidably mounted on the transverse plate (220), and the pressing block (430) extends into the limiting groove (221) and abuts against a corresponding inclined groove (411) on the clamping plate (410); The end of the clamping plate (410) extending out of the limiting groove (221) is clamped with the corresponding clamping groove on the U-shaped pressing plate (310), and the clamping plate (410) is moved to compress the second spring (420) by pressing the pressing block (430).

7. The electrical terminal block live reminder device according to claim 6, characterized in that: The pressing block (430) is located on a side of the transverse plate (220) facing the housing (100).

8. The electrical terminal block live reminder device according to claim 7, characterized in that: The distance between the two pressing blocks (430) is not less than 10 cm.

9. The electrical terminal block live reminder device according to claim 3, characterized in that: A rubber pad (311) is installed on the upper surface of the U-shaped pressing plate (310).

10. The electrical terminal block live reminder device according to claim 6, characterized in that: The U-shaped pressing plate (310), the horizontal plate (220), the hollow vertical plate (210), the first spring (330) and the second spring (420) are all made of insulating material.

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