CN211014396U - Detachable universal meter negative pole pen-shape metre - Google Patents

Abstract

The utility model discloses a detachable universal meter negative pole pen-shape metre, including pen needle, pen point and the pen body of table, the pen needle of table sets up the front end at the pen point of table, the front end of the pen body of table is equipped with the connecting piece, be equipped with the cavity that is used for holding the connecting piece in the pen point of table, the connecting piece is including being hollow cylindric pen body magnetic ring body and passing the pen body copper post of a body magnetic ring internal chamber, the pen point of table is connected for dismantling with the pen body of table, dismantles formula during operation at the pen point of table, the last surface adsorption of pen body magnetic ring body is fixed in on the binding post, the pen body copper post passes the pen body of table and is connected with the outside conductor electricity. The utility model overcomes current universal meter negative pole pen-shape metre is when carrying out electrical measurement, because of self can't fixed lead to measuring inconvenient, and consume the drawback of manpower, material resources, has improved staff's measuring convenience and work efficiency to also provide further assurance for staff's personal safety guardianship.

Description

Detachable universal meter negative pole pen-shape metre

Technical Field

The utility model relates to a transformer substation relay protection's electrical measurement technical field, more specifically relates to a detachable universal meter negative pole pen-shape metre.

Background

In the work of transformer substation relay protection maintenance, the universal meter can be used for measuring the voltage of binding post, measuring the resistance in return circuit and judging the conductivity scheduling problem of circuit, is the common tool when transformer substation relay protection operation.

When the traditional multimeter is used in relay protection operation, the following situations exist:

(1) when measuring the voltage of the outdoor terminal box, the terminal box is generally made of stainless steel materials and is connected with the grounding copper bar through a copper wire. Because the terminals of the terminal box to be measured are numerous, a worker has to continuously move the positive test pencil of the multimeter by one hand and hold the multimeter by the other hand to observe the reading in real time, while the negative test pencil of the multimeter needs to be stably connected with the grounding end of the terminal box, and at the moment, a plurality of people are required to work simultaneously, and a great amount of manpower and material resources are consumed.

(2) When the relay protection screen measures the voltage of the terminal row, because the screen cabinet shell is coated with insulating paint, the negative electrode pen-shape metre can only be connected on the stainless steel terminal of the ground copper bar at the bottom of the protection screen, and according to the electric power regulation, in order to guarantee the personal safety of operating personnel, the guardian must constantly monitor the working process of the operating personnel, can not participate in the measurement work, but when the operating personnel needs to measure the terminal voltage at the top of the protection screen cabinet, two persons must operate simultaneously, the operation loses the guardianship at the moment, the phenomenon of operation miss-collision easily occurs, and the personal safety of the operating personnel is threatened.

(3) When the measurement is ascended a height to needs the cat ladder, like CT/PT's wiring change back, when testing the exactness of secondary circuit wiring, because the negative pole pen-shape metre of traditional universal meter can't be fixed, survey crew holds just, the negative pole pen-shape metre, the universal meter must be held and the reading after climbing the ladder by other staff, has brought very big inconvenience for measuring, and has increased the unsafe factor of operation.

To sum up, current universal meter negative pole pen-shape metre is when carrying out electrical measurement, because of self can't fix and lead to measuring inconvenient, causes staff's work efficiency low, and has the drawback that consumes manpower, material resources.

SUMMERY OF THE UTILITY MODEL

When carrying out electrical measurement, lead to measuring inconvenient because of self can't be fixed for overcoming current universal meter negative pole pen-shape metre, and consume the drawback of manpower, material resources, the utility model provides a detachable universal meter negative pole pen-shape metre has strengthened staff's measuring convenience, improves staff's work efficiency to also provide further assurance for staff's personal safety guardianship.

In order to achieve the above technical effects, the technical scheme of the utility model as follows:

the utility model provides a detachable universal meter negative pole pen-shape metre, includes pen-shape metre needle, pen-shape metre head and pen-shape metre body, the pen-shape metre needle sets up the front end at the pen-shape metre, the front end of pen-shape metre body is equipped with the connecting piece, be equipped with the cavity that is used for holding the connecting piece in the pen-shape metre head, the connecting piece is including being hollow cylindric pen-shape body magnetic ring body and passing the pen-shape copper column of a body magnetic ring body inner chamber, the pen-shape metre head is connected for dismantling with the pen-shape metre body, dismantles the formula during operation at the pen-shape metre, the upper surface of pen-shape magnetic ring body adsorbs and is fixed in on binding post.

The wiring terminals of the transformer substation are made of stainless steel magnetic materials, when workers measure the voltage of the terminal box, if the distance between the two terminals connected with the positive and negative electrode test pens of the universal meter is relatively long, workers can not finish the measurement work independently by using the existing integrated universal meter test pen, the upper surface of the magnetic ring body of the negative-pole meter pen body provided by the utility model can be stably adsorbed and fixed on the wiring terminal, at the moment, the pen body copper column arranged in the inner cavity of the pen body penetrates through the meter pen body to be electrically connected with an external lead, and a worker can independently complete the voltage measurement work between two terminals far away from each other only by manipulating the position of the positive meter pen without the operation of multiple persons, thereby improving the working efficiency of the worker, avoiding the waste of manpower and material resources, and because the monitoring personnel are not required to intervene in the measurement work too much, further guarantee is provided for the personal safety monitoring of the operating personnel.

Preferably, the cavity in the watch pen point is cylindrical, the pen point magnetic ring body and the pen point copper column are coaxially arranged in the cavity, the pen point magnetic ring body is hollow cylindrical, the outer diameter of the pen point magnetic ring body is smaller than the diameter of the cavity, the upper end of the pen point copper column is embedded into the inner cavity of the pen point magnetic ring body, and the lower end of the pen point copper column penetrates through the watch pen point to be connected with the watch pen needle.

Preferably, the upper surface of the pen point copper column and the upper surface of the pen point magnetic ring body are on the same horizontal plane, and the upper surface of the pen body magnetic ring body and the upper surface of the pen body copper column are on the same horizontal plane.

Preferably, the diameter of the inner cavity of the pen head magnetic ring body is equal to that of the inner cavity of the pen body magnetic ring body, the diameter of the pen head copper column is equal to that of the pen body copper column, when the meter pen works in a non-detachable mode, the upper surface of the pen body magnetic ring body is adsorbed on the upper surface of the pen head magnetic ring body, and the upper surface of the pen head copper column is connected with the upper surface of the pen body copper column.

Preferably, still be equipped with a body insulating casing on the connecting piece, body insulating casing cladding has guaranteed the security in the pen-shape metre use on the outside surface of body magnetic ring body.

Preferably, the pen-shape metre on one's body still is equipped with the pen-shape metre ring that is used for bearing the connecting piece, the upper surface of pen-shape metre ring is connected with the lower bottom surface of connecting piece, and the height of connecting piece is the same with the vertical distance of pen-shape metre head bottom surface to nib magnetic ring body upper surface, when carrying out voltage measurement at a distance of nearer conventional terminal, the utility model discloses a non-dismantlement formula operating condition, the height of connecting piece is the same with the vertical distance of pen-shape metre head bottom surface to nib magnetic ring body upper surface, has guaranteed that pen-shape metre head and pen-shape metre body can be connected effectively just as a whole.

Preferably, the inner chamber bottom surface edge of table nib is provided with a plurality of latch at intervals, the lower extreme of connecting piece lateral surface be provided with at intervals a plurality of with latch assorted elasticity draw-in groove, fastness when further having improved table nib and table body integral type and being connected.

Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:

(1) the utility model provides a detachable universal meter negative pole pen-shape metre, body magnetic ring body upper surface can adsorb steadily and be fixed in on the binding post, the staff only needs the position of manipulating the positive pen-shape metre can accomplish alone at a distance of two terminal voltage measurement work far away, do not need many people to operate, the work efficiency of staff has been improved, manpower has been avoided, the waste of material resources, and because do not need guardian's too much intervention measurement work this moment, thereby the personal safety guardianship for operating personnel provides further assurance.

(2) Because the utility model provides a detachable universal meter negative pole pen-shape metre all has the assorted magnetic ring body on the pen point of table and the pen point, and the diameter phase-match of nib copper post and a body copper post, when carrying out voltage measurement at a distance between nearer conventional terminal, the utility model discloses a pen point of table and the pen point of table body joinable become integrative non-dismantlement formula state, and adopt elasticity draw-in groove and latch cooperation, the fastness when further having improved pen point of table and pen point body integral type and being connected has improved the operating flexibility when staff adopts universal meter measuring voltage.

Drawings

Fig. 1 is the utility model provides a whole structure schematic diagram of detachable universal meter negative pole pen-shape metre.

Fig. 2 is the utility model provides a first schematic diagram of meter pen head structure of detachable universal meter negative pole meter pen.

Fig. 3 is the utility model provides a pen body structure schematic diagram of detachable universal meter negative pole pen-shape metre.

Fig. 4 is the utility model provides a A position enlarger of detachable universal meter negative pole pen-shape metre.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent;

for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;

it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Example 1

When a worker measures the voltage of a terminal box, if two terminals connected with the positive and negative electrode test pens of the universal meter are far away, the worker cannot independently complete the measurement work by utilizing the conventional integrated universal meter test pen, as shown in fig. 1, the utility model provides an overall structure schematic diagram of a detachable universal meter negative electrode test pen, which comprises a test pen needle 1, a test pen head 2 and a test pen body 3; referring to fig. 2-4, the meter pen needle 1 is disposed at the front end of the meter pen head 2, and the front end of the meter pen body 3 is provided with a connecting member 31, wherein the enlarged partial schematic view of a shown in fig. 4 is a schematic view of the connecting member 31. The meter pen head 2 is internally provided with a cavity 21 for accommodating the connecting piece 31, the connecting piece 31 comprises a pen body magnetic ring body 311 which is in a hollow cylindrical shape and a pen body copper column 312 which penetrates through the inner cavity of the pen body magnetic ring body 311, the meter pen head 2 and the meter pen body 3 are detachably connected, when the meter pen works in a detachable mode, the upper surface of the pen body magnetic ring body 311 is fixed on the connecting terminal in an absorption way, the pen body copper column 312 passes through the watch pen body 2 to be connected with the external conducting wire 4, at this time, the pen body copper column 312 arranged in the inner cavity of the pen body magnetic ring body 311 penetrates through the meter pen body 2 to be electrically connected with the external lead 4, and a worker can independently complete the voltage measurement work between two terminals far away from each other only by manipulating the position of the positive meter pen without the operation of multiple persons, so that the working efficiency of the worker is improved, the waste of manpower and material resources is avoided, and because the monitoring personnel are not required to intervene in the measurement work too much, further guarantee is provided for the personal safety monitoring of the operating personnel.

As shown in fig. 2, the structure of the pen point structure of the detachable multimeter cathode pen is schematically illustrated, the cavity 21 inside the pen point 2 is cylindrical, the pen point magnetic ring 22 and the pen point copper pillar 23 are coaxially disposed in the cavity 21, the pen point magnetic ring 22 is hollow cylindrical, the outer diameter is smaller than the diameter of the cavity 21, the upper end of the pen point copper pillar 23 is embedded into the inner cavity of the pen point magnetic ring 22, the lower end of the pen point copper pillar 23 passes through the pen point 2 to be connected with the pen point needle 1, the upper surface of the pen point copper pillar 23 and the upper surface of the pen point magnetic ring 22 are on the same horizontal plane, as shown in fig. 3 and 4, the upper surface of the pen body magnetic ring 311 and the upper surface of the pen body copper pillar 312 are on.

The diameter of the inner cavity of the pen point magnetic ring body 22 is equal to that of the inner cavity of the pen body magnetic ring body 311, the diameter of the pen point copper column 23 is equal to that of the pen body copper column 312, when the meter pen works in a non-detachable mode, the upper surface of the pen body magnetic ring body 311 is adsorbed on the upper surface of the pen point magnetic ring body 22, and the upper surface of the pen point copper column 23 is connected with the upper surface of the pen body copper column 312.

Referring to a part a shown in fig. 4, which is a partial enlarged view of the connecting member 31, the connecting member 31 is further provided with a pen body insulating shell 313, and the pen body insulating shell 313 covers the outer side surface of the pen body magnetic ring body 311, so that the safety of the stylus pen in the using process is ensured. Referring to the structural schematic diagram of the pen body of the watch shown in fig. 3, the pen body of the watch is provided with a pen ring 32 for bearing the connecting piece 31, the upper surface of the pen ring 32 is connected with the lower bottom surface of the connecting piece 31, the height of the connecting piece 31 is the same as the vertical distance from the bottom surface of the pen head 2 to the upper surface of the pen head magnetic ring 22, when voltage measurement is performed at a short distance from the conventional terminal, the utility model discloses a non-detachable operating condition, the height of the connecting piece 31 is the same as the vertical distance from the bottom surface of the pen head 2 to the upper surface of the pen head magnetic ring 22, and it is guaranteed that the pen head 2 and the pen body 3 of the watch can be effectively connected into a whole.

Referring to fig. 2 and 4, the edge of the bottom surface of the inner cavity of the stylus head 2 is provided with 6 latch teeth 24 at intervals, the lower end of the outer side surface of the connecting piece 31 is provided with 6 elastic clamping grooves 33 matched with the latch teeth 24 at intervals, and the firmness of the stylus head 2 and the stylus body 3 during integral connection is improved.

The same or similar reference numerals correspond to the same or similar parts;

the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent;

it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (7)

1. The utility model provides a detachable universal meter negative pole pen-shape metre, includes pen-shape metre needle, pen-shape metre head and pen-shape metre body, its characterized in that, the pen-shape metre needle sets up the front end at the pen-shape metre, the front end of pen-shape metre body is equipped with the connecting piece, be equipped with the cavity that is used for holding the connecting piece in the pen-shape metre head, the connecting piece is including being hollow cylindric pen-shape metre body magnetic ring body and passing the pen-shape metre body copper post of a body magnetic ring body inner chamber, the pen-shape metre head is connected for dismantling with the pen-shape metre body, dismantles the formula during operation at the pen-shape metre, the last surface adsorption of pen-shape magnetic ring body is fixed in on.

2. The detachable multimeter negative electrode meter pen as claimed in claim 1, wherein the cavity in the meter pen head is cylindrical, a pen head magnetic ring body and a pen head copper column are coaxially arranged in the cavity, the pen head magnetic ring body is hollow cylindrical, the outer diameter of the pen head magnetic ring body is smaller than the diameter of the cavity, the upper end of the pen head copper column is embedded into the inner cavity of the pen head magnetic ring body, and the lower end of the pen head copper column penetrates through the meter pen head to be connected with a meter pen needle.

3. The detachable multimeter cathode meter pen according to claim 2, wherein the upper surface of the pen head copper pillar and the upper surface of the pen head magnetic ring body are on the same horizontal plane, and the upper surface of the pen body magnetic ring body and the upper surface of the pen body copper pillar are on the same horizontal plane.

4. The detachable multimeter cathode pen according to claim 2 or 3, wherein the diameter of the inner cavity of the pen head magnetic ring body is equal to the diameter of the inner cavity of the pen body magnetic ring body, the diameter of the pen head copper column is equal to the diameter of the pen body copper column, when the pen is in non-detachable operation, the upper surface of the pen body magnetic ring body is adsorbed on the upper surface of the pen head magnetic ring body, and the upper surface of the pen head copper column is connected with the upper surface of the pen body copper column.

5. The detachable multimeter cathode pen according to claim 1, wherein a pen body insulating case is further arranged on the connecting piece, and the pen body insulating case is wrapped on the outer side surface of the pen body magnetic ring body.

6. The detachable multimeter cathode pen as claimed in claim 5, wherein the pen body is further provided with a pen ring for bearing the connecting piece, the upper surface of the pen ring is connected with the lower bottom surface of the connecting piece, and the height of the connecting piece is the same as the vertical distance from the bottom surface of the pen head to the upper surface of the pen head magnetic ring body.

7. The detachable multimeter cathode pen according to claim 6, wherein a plurality of latches are alternately arranged at the edge of the bottom surface of the inner cavity of the pen head, and a plurality of elastic slots matched with the latches are alternately arranged at the lower end of the outer side surface of the connecting piece.

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