CN209878915U - Direct current leakage sensor - Google Patents

Abstract

The utility model discloses a direct current leakage current sensor, including setting up the wiring mechanism on the sensor, wiring mechanism includes a protrusion section of thick bamboo and end lid, an end lid side surface is provided with the protrusion inserted block of size and the mutual correspondence of protrusion section of thick bamboo internal diameter, the screw hole that quantity and wiring contact quantity are unanimous is evenly seted up on end lid surface, the screw thread post is installed to the screw thread downthehole cooperation, first through-hole has been seted up in the screw thread post, protrusion inserted block inside is located the screw hole position and has seted up the circular cone type passageway, screw thread post side surface lower extreme all is provided with the clamping piece on the surface, the equal fixed mounting in clamping piece inboard surface one end has semicircle rand, protrusion inserted block side surface is located. The utility model discloses avoid naked metal wire to take place the phenomenon of static, connect the electric mode simple, and the security is higher.

Description

Direct current leakage sensor

Technical Field

The utility model relates to a leakage current sensor technical field, more specifically say, in particular to direct current leakage current sensor.

Background

The direct current leakage current sensor is a measuring module which converts the direct current to be measured into a direct current or voltage signal which is output in proportion to the direct current by utilizing the fluxgate principle, and the primary side and the secondary side are highly insulated. The standard signals such as DC 4-20mA, DC0-5V, DC0-10V and the like are usually output, the standard signals can be collected by various collection equipment, such as PLC, RTU, DAS card and the like, and are used for various current monitoring occasions. The wiring end of the direct current leakage current sensor in the prior art can not avoid the exposure of the central line in the wiring process, and the wiring position can not be well adjusted due to the fact that the wiring is hard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a direct current leakage current sensor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a direct current leakage sensor comprises a wiring mechanism arranged on the sensor, wherein the wiring mechanism comprises a protruding cylinder and a terminal cover, the convex barrel is arranged at the position of the wiring contact of the sensor, one side surface of the end cover is provided with convex insertion blocks with the size corresponding to the inner diameter of the convex barrel, the surface of the end cover is uniformly provided with threaded holes with the number consistent with that of the wiring contacts, threaded columns are arranged in the threaded holes in a matched manner, first through holes are arranged in the threaded columns, a conical channel is arranged in the convex insertion block at the position of the threaded hole, clamping pieces are arranged at the upper end and the lower end of the surface of one side of the threaded column, a semicircular clamping ring is fixedly arranged at one end of the surface of the inner side of each clamping piece, the surface of one side of the protruding plug-in block is provided with a contact plate which is fixedly arranged at the position of the wiring contact, the surface of one side of the contact plate is provided with a circular groove opening, and the middle part of the contact plate is provided with a second through hole which is communicated with the circular groove opening.

Further, the end cover both ends are located protrusion inserted block side surface and all are provided with the curb plate, and curb plate inboard surface is provided with the protrusion stopper of a body structure, the protruding section of thick bamboo outside surface both ends are located protrusion stopper position and have all seted up the spacing groove, the end cover inserts through protrusion stopper and establishes the spacing inslot and with protruding section of thick bamboo fixed connection.

Further, the outer surface of the threaded column is provided with a protruding rib of an integrated structure, and the through hole penetrates through the protruding rib.

Furthermore, the inner holes of the ring formed by the two groups of semi-circular clamping rings are flush with the positions of the second through holes at the corresponding positions.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a screw thread post is connected with the screw hole cooperation, through the effect of circular cone type passageway, two sets of clamping pieces on the screw thread post can extrude each other, thereby can be with the wire block through two sets of semicircle rands, thereby avoid naked metal wire to take place the phenomenon of static, pass through protrusion stopper and a protrusion section of thick bamboo fixed connection with the end lid this moment, in the metal wire can stretch into the circular slot of touch panel this moment, the wiring contact of sensor can closely laminate with the metal wire, connect the electric mode simple, and the security is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a structural diagram of a DC leakage sensor according to the present invention;

FIG. 2 is a cross-sectional view of the wiring mechanism of the present invention;

fig. 3 is an enlarged schematic view of the structure at a in fig. 2.

In the figure: the device comprises a sensor 1, a wiring mechanism 2, a terminal cover 3, a protruding barrel 4, a threaded hole 5, a conical channel 6, a threaded column 7, a protruding rib 8, a first through hole 9, a clamping piece 10, a side plate 11, a protruding limiting block 12, a limiting groove 13, a hand fastening groove 14, a touch plate 15, a circular notch 16, a second through hole 17 and a semicircular clamping ring 18.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to fig. 1-3, the present invention provides a direct current leakage sensor, which comprises a wiring mechanism 2 disposed on a sensor 1, wherein the wiring mechanism 2 comprises a protruding cylinder 4 and an end cap 3, the protruding cylinder 4 is disposed at a wiring contact position of the sensor 1, a protruding plug-in block having a size corresponding to the inner diameter of the protruding cylinder 4 is disposed on a side surface of the end cap 3, threaded holes having the same number as the wiring contacts are uniformly disposed on the surface of the end cap 3, a threaded post 7 is disposed in the threaded hole 5 in a matching manner, a first through hole 9 is disposed in the threaded post 7, a conical channel is disposed in the protruding plug-in block at the threaded hole position, clamping pieces 10 are disposed at the upper and lower ends of a side surface of the threaded post 7, a semicircular clamping ring 18 is fixedly disposed at one end of the inner side surface of the clamping pieces 10, a contact plate 15 is fixedly, the surface of one side of the contact plate 15 is provided with a circular notch 16, and the middle part of the contact plate 15 is provided with a second through hole 17 penetrating through the circular notch 16.

In this embodiment, end lid 3 both ends are located protrusion inserted block side surface and all are provided with curb plate 11, and 11 inboard side surfaces of curb plate are provided with the protrusion stopper 12 of a body structure, and protruding 4 outside surfaces both ends of section of thick bamboo are located protrusion stopper 12 positions and have all seted up spacing groove 13, and end lid 3 inserts through protrusion stopper 12 and establishes spacing groove 13 in and with protruding section of thick bamboo 4 fixed connection.

In this embodiment, the outer surface of the threaded column 7 is provided with a protruding rib 8 of an integrated structure, and the through hole 9 penetrates through the protruding rib 8, so that the threaded column 7 is convenient for an operator to rotate.

In this embodiment, the inner hole of the ring formed by the two sets of half-round collars 18 is flush with the second through hole 17 at the corresponding position, so that the metal wire of the wire can be smoothly inserted into the second through hole 17.

The utility model discloses a theory of operation does: at first take out multiunit screw thread post 7 from screw hole 5, skin wire exposure wire with wire one end, insert the wire one end of wire in the first through-hole 9 of screw thread post 7, make two sets of semicircle rand be located the position between wire and the wire skin, be connected screw thread post 7 and screw hole 5 cooperation, effect through circular cone type passageway 6, two sets of clamping pieces 10 on the screw thread post 7 can extrude each other, thereby can be with the wire block through two sets of semicircle rand 18, with end lid 3 through protrusion stopper 12 and the fixed connection of projection section of thick bamboo 4 this moment, the wire can stretch into in the round notch 16 of touch-pad 15 this moment, sensor 1's wiring contact can closely laminate with the wire, accomplish and connect electrical work.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes and modifications can be made by the owner within the scope of the appended claims, and the protection scope of the present invention should not be exceeded by the claims.

Claims (4)

1. A direct current leakage sensor comprising a wiring mechanism (2) provided on a sensor (1), characterized in that: the wiring mechanism (2) comprises a protruding barrel (4) and a terminal cover (3), the protruding barrel (4) is arranged at the wiring contact position of the sensor (1), one side surface of the terminal cover (3) is provided with a protruding plug-in block with the size corresponding to the inner diameter of the protruding barrel (4), the surface of the terminal cover (3) is uniformly provided with threaded holes with the quantity identical to that of the wiring contacts, a threaded column (7) is installed in the threaded hole (5) in a matched mode, a first through hole (9) is formed in the threaded column (7), the protruding plug-in block is internally provided with a conical channel at the threaded hole position, the upper end and the lower end of one side surface of the threaded column (7) are respectively provided with a clamping piece (10), one end of the inner side surface of the clamping piece (10) is respectively and fixedly provided with a semicircular clamping ring (18), one side surface of the protruding plug-in block is respectively and fixedly provided with a touch plate, the middle part of the touch plate (15) is provided with a second through hole (17) which runs through the circular notch (16).

2. The direct current leakage sensor according to claim 1, wherein: end lid (3) both ends are located protrusion inserted block side surface and all are provided with curb plate (11), and curb plate (11) inboard surface is provided with salient stopper (12) of a body structure, spacing groove (13) have all been seted up to protrusion section of thick bamboo (4) outside surface both ends are located protrusion stopper (12) position, end lid (3) insert through protrusion stopper (12) establish spacing groove (13) in and with protrusion section of thick bamboo (4) fixed connection.

3. The direct current leakage sensor according to claim 1, wherein: the outer surface of the threaded column (7) is provided with a protruding rib (8) of an integrated structure, and the through hole (9) penetrates through the protruding rib (8).

4. The direct current leakage sensor according to claim 1, wherein: the inner holes of the ring formed by the two groups of semi-circular clamping rings (18) are flush with the positions of the second through holes (17) at the corresponding positions.