CN220603600U - Detection tool for switch cabinet - Google Patents

Abstract

The utility model provides a detection tool for a switch cabinet, which comprises a conductive outer cylinder and an insulating sleeve, wherein the insulating sleeve is positioned in the conductive outer cylinder and is provided with an embedded conductive piece, and the embedded conductive piece is used for contacting the conductive outer cylinder; at least two first probe assemblies fixed to the first side of the body, and 1 first probe assembly for contacting 1 embedded conductive member; a second probe assembly fixed to the first side of the body, the second probe assembly being adapted to contact the conductive outer barrel, the first probe assembly and the second probe assembly being connected by a wire; and the prompting parts are in one-to-one correspondence with the first probe assemblies, each prompting part is connected with one first probe assembly and used for prompting whether current greater than or equal to a preset threshold value flows through the first probe assembly.

Description

Detection tool for switch cabinet

Technical Field

The utility model relates to the field of switch cabinets, in particular to a detection tool for a switch cabinet.

Background

The switch cabinet is important equipment in a power system, and is used for switching, controlling and protecting electric equipment in the process of generating, transmitting, distributing and converting electric energy of the power system. The switchgear cabinet generally includes an air chamber, an operation chamber, a cable chamber, and a low-voltage chamber. Sulfur hexafluoride gas is filled in the gas chamber as insulating gas, a breaker and a disconnecting switch are installed in the gas chamber, an operating mechanism of the breaker and an operating mechanism of the disconnecting switch are installed in the operating chamber, a cable is installed in the cable chamber, and devices such as an instrument are installed in the low-voltage chamber.

As shown in fig. 1, for a cable drum of a cable room, it generally includes a conductive outer drum 1 and an insulating sleeve 3, wherein the insulating sleeve 3 is located inside the conductive outer drum 1, one conductive rod 5 is exposed from the top 30 of the insulating sleeve 3 through the top 30 of the insulating sleeve 3, and an external cable is inserted into the insulating sleeve 3 to contact the conductive rod 5. The insulating bush 3 has an embedded conductive member 31, the embedded conductive member 31 is typically an embedded nut, the insulating outer cylinder 1 has a screw hole 11, and the insulating bush 3 and the insulating bush 1 can be fixed together by the bolt passing through the screw hole 11 and being engaged with the embedded conductive member 31. The embedded conductive element 31 in the insulating sleeve 3 sometimes needs to perform other functions, such as grounding. Thus, after the installation of the cable drum is completed, it is necessary to detect whether contact between the embedded conductive member 31 and the conductive outer drum 1 is maintained, so as to ensure the safety of the worker.

In the prior art, a detecting person is a handheld ohmmeter, one of two probes is contacted with an embedded conductive piece 31, the other probe is contacted with a conductive outer barrel 1, and if the resistance displayed by the ohmmeter is smaller than or equal to a preset threshold value, the contact state between the two probes is indicated. However, such detection methods are inefficient.

Disclosure of Invention

In view of this, the present utility model proposes a detection tool for a switchgear comprising a conductive outer cylinder and an insulating sleeve, the insulating sleeve being located inside the conductive outer cylinder and the insulating sleeve having an embedded conductive element for contacting the conductive outer cylinder, the detection tool comprising:

a body;

at least two first probe assemblies fixed to a first side of the body, and 1 first probe assembly for contacting 1 embedded conductive member;

a second probe assembly secured to the first side of the body, the second probe assembly adapted to contact the conductive outer barrel, the first probe assembly and the second probe assembly being connected by a wire;

and the prompting parts are in one-to-one correspondence with the first probe assemblies, each prompting part is connected with one first probe assembly, and the prompting parts are used for prompting whether current greater than or equal to a preset threshold value flows through the first probe assemblies.

According to the detection tool disclosed by the utility model, whether contact between a plurality of embedded conductive pieces and the conductive outer cylinder is kept or not can be detected simultaneously, so that the detection efficiency can be improved, and the labor is greatly saved.

According to the detection tool as described above, optionally, the indicator component is an indicator light, and the indicator light is fixed on the body; and/or the prompting component is a multimeter. The prompting mode is simple and clear, and is convenient for operators to observe.

According to the detection tool as described above, optionally, further comprising: the external power supply is used for providing power for a circuit where the universal meter, the first probe assembly and the second probe assembly are located.

According to the detection tool as described above, optionally, further comprising: a handle secured to a second side of the body facing away from the first probe assembly. By means of the handle, the operator can move the detection tool more conveniently.

According to the detection tool as described above, optionally, the body comprises:

a frame body;

the transparent plate is fixed in the middle part of the support body.

By adopting the transparent plate, a worker can clearly observe the contact condition of each first probe assembly and the embedded conductive piece, and further the damage to the first probe assemblies caused by collision is avoided.

According to the detection tool as described above, optionally, the first probe assembly and/or the second probe assembly comprises:

the conducting rod is fixed on the body;

the probe head is detachably connected to the conducting rod.

The conducting rod is detachably connected with the probe head, so that the probe head can be replaced conveniently.

According to the detection tool as described above, optionally, the embedded conductive member is an embedded nut, and the length of the first probe assembly is greater than the length of the second probe assembly.

According to the detection tool, optionally, the number of the first probe assemblies is 3, and the 3 first probe assemblies are distributed in a regular triangle.

According to the detection tool as described above, optionally, further comprising: and the built-in power supply is used for providing power for the circuits where the first probe assembly and the second probe assembly are located. The built-in power supply can facilitate movement of the detection tool,

drawings

The above and other features and advantages of the present utility model will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:

fig. 1 is a schematic diagram of a part of the structure of a switchgear.

Fig. 2 is a schematic diagram of the overall structure of a detection tool for a switchgear according to the present utility model.

Fig. 3 is a schematic view of a part of the structure of a detection tool for a switch cabinet according to the present utility model.

Fig. 4 is a schematic structural view of a detection tool for a switchgear according to the present utility model contacting an embedded conductive member.

Wherein, the reference numerals are as follows:

1-conductive outer cylinder

11-screw hole

3-insulating sleeve

30-roof portion

31-embedded conductive element

41-body

42-first probe assembly

43-second probe assembly

441-prompting lamp

442-multimeter

45-handle

401-conductive rod

402-probe head

5-conductive rod

Detailed Description

The present utility model will be further described in detail with reference to the following examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. Nouns and pronouns for humans in this patent application are not limited to a particular gender.

The utility model provides a detection tool for a switch cabinet, as shown in fig. 1, the switch cabinet comprises a conductive outer cylinder 1 and an insulating sleeve 3, the insulating sleeve 3 is positioned inside the conductive outer cylinder 1, the insulating sleeve 3 is provided with an embedded conductive piece 31, and the embedded conductive piece 31 is used for contacting the conductive outer cylinder 1. It should be noted that the insulating sleeve 3 has a plurality of embedded conductive members 31, wherein a part of the embedded conductive members 31 is used for fixing with the conductive outer cylinder 1, that is, a bolt can pass through the screw hole 11 on the conductive outer cylinder 1 and is fixed on the part of the embedded conductive members 31, and the other part of the embedded conductive members is used for contacting the conductive outer cylinder 1, and the embedded conductive members 1 are located on the plane where the opening of the insulating sleeve 3 is located. A conductive rod 5 is exposed from the bottom of the insulating sleeve 3 through the conductive outer tube 1, the bottom of the insulating sleeve 3 being opposite to the opening. As an exemplary illustration, the conductive outer tube 1 is a tube of a cable room, more specifically, the conductive outer tube 1 is an aluminum tube, and the embedded conductive member 31 of the insulating sleeve 3 is an embedded nut.

As shown in fig. 2, 3 and 4, the inspection tool of the present utility model includes a body 41, at least two first probe assemblies 42, a second probe assembly 43, and a prompt member.

The body 41 may be a box or a plate, and the material of the body 41 may be a resin material, so that the insulation function is achieved. Of course, the body 41 may also include a frame and a transparent plate, where the transparent plate is located in the middle of the frame, so that an operator can observe the operation condition through the transparent plate to realize accurate operation.

The first probe assemblies 42 are fixed to the first side of the body 41, and 1 first probe assembly 42 is used to contact 1 embedded conductive member 31. The number of the first probe assemblies 42 may be selected according to practical needs, for example, 2, 3 or more, so that in the case of simultaneously using a plurality of first probe assemblies 42, a plurality of embedded conductive members 31 can be simultaneously contacted.

A second probe assembly 43 is fixed to the first side of the body 41, the second probe assembly 43 is used for contacting and conducting the outer cylinder 1, and the first probe assembly 42 and the second probe assembly 43 are connected through wires.

The prompting components are in one-to-one correspondence with the first probe assemblies 42, each prompting component is connected to one first probe assembly 42, and the prompting components are used for prompting whether a current exceeding a preset threshold value flows through the first probe assembly 42. It should be noted that there are many ways in which the prompting element may be used to prompt whether a current greater than or equal to the preset threshold flows through first probe assembly 42, such as an audible prompt, a light prompt, and/or a display value prompt, where the display value may be a direct display of the current value, or may be an indirect display of a resistance value to indicate whether a current greater than the preset threshold flows through first probe assembly 42, such as the resistance value on multimeter 442 shown in fig. 1. The specific configuration may be set according to actual needs, and will not be described herein. The preset threshold value may be set according to actual needs, and of course, may also be determined by other values, for example, the magnitude of the resistance value or the magnitude of the voltage, which will not be described in detail.

Alternatively, the power source of the detection tool may provide power through a built-in power source, or may provide power through an external power source. The built-in power source can facilitate movement of the detection tool, for example, the built-in power source can be a battery. The external power supply can provide power for the detection tool through an external power line, so that current for detection can be generated under the condition that a loop is connected. Of course, the detection tool can also be provided with a built-in power supply and an external power supply at the same time, the built-in power supply can be stopped in use under the condition that the external power supply is switched on, and the built-in power supply can be charged under the condition that the external power supply is switched on, and the detection tool can be specifically set according to actual needs and is not described herein.

When in use, an operator can contact each first probe assembly 42 in the detection tool with the embedded conductive piece 31 in a one-to-one correspondence manner, and contact the second probe assembly 43 with the conductive outer barrel 1, namely, the second probe assembly 43 is a probe assembly shared by all the first probe assemblies 42, and then the power supply is provided for the detection tool when the switch of the built-in power supply is turned on or the external power supply is turned on. If the loop formed by each of the first probe assembly 42, the second probe assembly 43, the embedded conductive member 31 and the conductive outer barrel 1 is on, a current is generated, and the prompting means displays whether a current greater than or equal to a preset threshold value flows through the first probe assembly 42; if the loop formed by a certain first probe assembly 42, second probe assembly 43, embedded conductive element 31 and conductive outer barrel 1 is not conductive, the indicator will not show that a current greater than or equal to the predetermined threshold value is flowing through the first probe assembly 42. Thus, the operator can simultaneously check whether or not the plurality of embedded conductive members 31 are held between the conductive outer cylinder 1. The holding contact here means that if a loop can be formed between the embedded conductive piece 31 and the conductive outer tube 1, that is, a good contact state is maintained between each other.

According to the detection tool of the utility model, whether contact between the plurality of embedded conductive pieces 31 and the conductive outer cylinder 1 is kept or not can be detected simultaneously, so that the detection efficiency can be improved, and the labor is greatly saved. And prompt through the prompting part, the staff of being convenient for observes, has improved work efficiency.

As an exemplary illustration, the indicator may be an indicator light 441, and the indicator light 441 is fixed to the body 41. As shown in fig. 2, the indicator member is disposed at the bottom of the first probe assembly 42, and specifically, the color of the indicator light 441 indicates whether a current greater than or equal to a preset threshold flows through the first probe assembly 42, or the indicator light 441 is turned on to indicate whether a current greater than or equal to a preset threshold flows through the first probe assembly 42, for example, red indicates that a current greater than or equal to a preset threshold flows through the first probe assembly 42, or red indicates that a current greater than or equal to a preset threshold flows through the first probe assembly 42. As another example, the prompt may be multimeter 442, and each multimeter 442 may display a corresponding resistance value of the connected first probe assembly 42, and may determine that a current greater than or equal to a predetermined threshold value flows through the first probe assembly 42 if the resistance value is greater than or equal to a predetermined threshold value, and may determine that no current greater than or equal to the predetermined threshold value flows through the first probe assembly 42 if the resistance value is less than the predetermined threshold value. Of course, as shown in fig. 2, the detection tool has both a prompt lamp 441 and a multimeter 442, and the prompt mode is simple and clear, so that the detection tool is convenient for an operator to observe.

As an exemplary illustration, for the case of an external power source, the test tool has an external power cord that can be connected to multimeter 442. In the case of multiple multimeters 442, the multiple multimeters 442 may be connected to each first probe assembly 42 via a cable, i.e., a one-to-one correspondence between the first probe assemblies 42 and the multimeters 442 may be achieved via wiring within the cable; similarly, the plurality of multimeters 442 can also be connected to an external power source via an external power cord, with each multimeter 442 being powered via circuitry internal to the external power cord.

As an exemplary illustration, the detection tool further includes a handle 45. The handle 45 is secured to a second side of the body 41 facing away from the first probe assembly 42. By means of the handle 45, the operator can move the detection tool more conveniently.

As an exemplary illustration, the body 41 includes a frame body and a transparent plate fixed to a middle portion of the frame body. The transparent plate may be made of a resin material. The frame body can be made of metal materials or resin materials, and the weight is light under the condition of adopting the resin materials, so that the movement of staff is facilitated. By adopting the transparent plate, a worker can clearly observe the contact condition between each first probe assembly 42 and the embedded conductive piece 31, and further, the damage to the first probe assemblies 42 caused by collision is avoided.

As one exemplary illustration, the first probe assembly 42 includes a conductive rod 401 and a probe head 402. Wherein the conductive rod 401 is fixed to the body 41, and the probe head 402 is detachably connected to the conductive rod 401. Because the probe head 402 is a relatively sensitive component, it is often exposed to metal parts or is relatively vulnerable to damage due to operator effort, etc., which requires replacement of the probe head 402. The conductive rod 401 is detachably connected with the probe head 402, which is beneficial to the replacement of the probe head 402. For example, the conductive rod 401 and the probe head 402 can be fixed together by screwing, and under the condition that the probe head 402 needs to be replaced, only the probe head 402 needs to be rotated down and then a new probe head 402 is mounted, so that the mounting mode is very convenient, maintenance is convenient, and cost is saved. In addition, the conductive rod 401 may be electrically connected to the prompt part. For example, as shown in fig. 2, in the case where the indicator member is an indicator light 441, the indicator light 441 is located on a side of the conductive rod 401 away from the probe head 402.

As one exemplary illustration, the embedded conductive element 31 is an embedded nut and the length of the first probe assembly 42 is greater than the length of the second probe assembly 43. Since the height of the insert nut is lower than the conductive outer cylinder 1 as shown in fig. 4, the length of the first probe assembly 42 needs to be longer than the length of the second probe assembly 43 so that the first probe assembly 42 contacts the insert nut. The embedded nut can be used as a nut for grounding, and the contact between the embedded nut and the conductive outer barrel 1 is kept to ensure the grounding of the conductive outer barrel 1, so that the safety of workers is ensured.

As an exemplary illustration, as shown in fig. 2 and 3, the number of first probe assemblies 42 is 3, and the 3 first probe assemblies 42 are distributed in a regular triangle. For example, as shown in fig. 1, the 3 embedded conductive elements 31 to be detected are matched with the distribution of the 3 first probe assemblies 42, so that the detection of the 3 embedded conductive elements 31 can be completed only by 1 time of detection, which is convenient, quick and high in efficiency.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (9)

1. Detection tool for a switchgear comprising a conductive outer cylinder (1) and an insulating sleeve (3), said insulating sleeve (3) being located inside said conductive outer cylinder (1) and said insulating sleeve (3) having an embedded conductive element (31), said embedded conductive element (31) being adapted to contact said conductive outer cylinder (1), characterized in that said detection tool comprises:

a body (41);

-at least two first probe assemblies (42) fixed to a first side of the body (41), and 1 of the first probe assemblies (42) being adapted to contact 1 embedded conductive element (31);

-a second probe assembly (43) fixed to a first side of said body (41), said second probe assembly (43) being adapted to contact said conductive outer barrel (1), said first probe assembly (42) and said second probe assembly (43) being connected by wires;

and the prompting parts are in one-to-one correspondence with the first probe assemblies (42), each prompting part is connected with one first probe assembly (42), and the prompting parts are used for prompting whether current larger than or equal to a preset threshold value flows through the first probe assemblies (42).

2. The detection tool according to claim 1, wherein the indicator means is an indicator light (441), the indicator light (441) being fixed to the body (41); and/or

The prompt component is a multimeter (442).

3. The inspection tool of claim 2, further comprising:

and the external power supply wire is connected to the universal meter (442), and the external power supply is used for providing power for circuits where the universal meter (442), the first probe assembly (42) and the second probe assembly (43) are located.

4. The inspection tool of claim 1, further comprising:

-a handle (45), said handle (45) being fixed to a second side of said body (41) facing away from said first probe assembly (42).

5. The detection tool according to claim 1, wherein the body (41) comprises:

a frame body;

the transparent plate is fixed in the middle part of the support body.

6. The detection tool according to claim 1, wherein the first probe assembly (42) and/or the second probe assembly (43) comprises:

a conductive rod (401), the conductive rod (401) being fixed to the body (41);

-a probe head (402), said probe head (402) being detachably connected to said conductive rod (401).

7. The detection tool according to claim 1, wherein the embedded conductive element (31) is an embedded nut, and the length of the first probe assembly (42) is greater than the length of the second probe assembly (43).

8. The inspection tool of claim 1 wherein the number of first probe assemblies (42) is 3, the 3 first probe assemblies (42) being in a regular triangular distribution.

9. The detection tool of any one of claims 1-8, further comprising:

and the built-in power supply is used for providing power for the circuits where the first probe assembly (42) and the second probe assembly (43) are located.