CN207817109U - A kind of circuit detector - Google Patents

Abstract

The utility model provides a kind of circuit detector, including shell, display screen on shell, circuit board in shell, first test pen, second test pen, first p-wire and the second p-wire, the first winding winding apparatus and the second winding winding apparatus are additionally provided in shell, one end of first p-wire and the second p-wire is electrically connected with the first test pen and the second test pen respectively, the other end passes through the outlet hole on shell to be respectively wound around on the first winding winding apparatus and the second winding winding apparatus, and respectively with circuit board electrical connection, first test pen and the second test pen include bar portion and nib, the bar portion of first test pen and the bar portion of the second test pen are hinged, hinged place is equipped with torsional spring, it is surrounded by insulating materials on the outside of the bar portion of first test pen and the bar portion of the second test pen.The circuit detector one-hand operation and detection point contact, length is adjustable, easy to operate；Can be automatically by long p-wire rollback shell, regular circuit improves safety.

Description

A kind of circuit detector

Technical field

The utility model belongs to wireline inspection equipment technical field, more particularly, to a kind of circuit detector.

Background technology

Circuit detector is the equipment for the detection circuit in family life or electrotechnical, electronic engineering, circuit detector kind There are many class, such as multimeter, are exactly a kind of common circuit detector, in detection circuit electric current, voltage, resistance it is big It is small, thus the problems such as the short circuit of decision circuitry, open circuit.Existing multimeter is usually by watchcase, display screen, adjusting knob, detection Pen and detection line are constituted, and when detection circuit, two hands operations, every hand are needed to take a detection pen, contacted with circuit under test, but It is since voltage, the electric current equivalence of circuit are shown on display screen, two hands can not just hold watchcase when respectively taking a detection pen, It can not very easily check circuit state, and detection line is generally longer, two detection lines easy tied up in knots when use makes detection There is security risk in the process, and inconvenient to use.

Invention content

Problem to be solved in the utility model is to provide a kind of circuit detector, and detection line loop operation is convenient, and circuit is regular, It detects safe.

In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of circuit detector, including it is outer Shell, the display screen on shell, the circuit board in shell, the first test pen, the second test pen, the first p-wire and Two p-wires are additionally provided with the first winding winding apparatus and the second winding winding apparatus, the first p-wire and the second test in shell One end of line is electrically connected with the first test pen and the second test pen respectively, and the other end passes through the outlet hole on shell to be respectively wound around First winding winding apparatus and second winding winding apparatus on, and respectively with circuit board electrical connection, the first test pen and second survey It includes bar portion and nib to try pen, and the bar portion of the first test pen and the bar portion of the second test pen are hinged, and hinged place is equipped with torsional spring, the It is surrounded by insulating materials on the outside of the bar portion of one test pen and the bar portion of the second test pen.

In technical solution, it is preferred that the first winding winding apparatus includes the first mandrel of both ends and housing hinge, is wrapped in The first spring on the outside of first mandrel, one end of the first spring are fixed with the first mandrel, and the other end is fixed with shell.

In technical solution, it is preferred that one end of the first p-wire passes through the first through hole on the first mandrel, and from the first core The end of axis is pierced by, and is wrapped on the first mandrel with the other end of circuit board electrical connection, the first p-wire, and be pierced by outlet hole with First test pen is electrically connected.

In technical solution, it is preferred that the second winding winding apparatus includes the second mandrel of both ends and housing hinge, is wrapped in Second spring on the outside of second mandrel, one end of second spring are fixed with the second mandrel, and the other end is fixed with shell.

In technical solution, it is preferred that one end of the second p-wire passes through the second through-hole on the second mandrel, and from the second core The end of axis is pierced by, and is wrapped on the second mandrel with the other end of circuit board electrical connection, the second p-wire, and be pierced by outlet hole with Second test pen is electrically connected.

In technical solution, it is preferred that the bar portion of the first test pen is Telescopic rod structure.

In technical solution, it is preferred that the bar portion of the second test pen is Telescopic rod structure.

The utility model has the advantages and positive effects of：A hand can be used in the circuit detector, two detection pens One-handed performance and detection point contact, detection length is adjustable, easy to operate；P-wire can be stretched automatically equipped with winding winding apparatus In the long part rollback shell gone out, regular circuit improves safety and ease of use.

Description of the drawings

Fig. 1 is the structural schematic diagram of the circuit detector of the utility model embodiment.

Fig. 2 is the structural schematic diagram that winding apparatus is wound in the utility model embodiment.

Fig. 3 is the structural schematic diagram that winding apparatus is wound in the utility model embodiment.

In figure：

1, shell 2, display screen 3, circuit board

4, test pen 5, test pen 6, p-wire

7, p-wire 8, winding winding apparatus 9, winding winding apparatus

10, torsional spring 41, bar portion 42, nib

51, bar portion 81, mandrel 82, spring

83, through-hole 91, mandrel 92, spring

93, through-hole

Specific implementation mode

The utility model embodiment is described further below in conjunction with the accompanying drawings：

As shown in Figure 1, a kind of circuit detector described in the present embodiment, including shell 1, the display screen on shell 1 2, the circuit board 3 in shell 1, test pen 4, test pen 5, p-wire 6 and p-wire 7 are additionally provided with winding rollback in shell 1 One end of device 8 and winding winding apparatus 9, p-wire 6 and p-wire 7 is electrically connected with test pen 4 and test pen 5 respectively, another Hold outlet hole on shell 1 to be respectively wound around on winding winding apparatus 8 and winding winding apparatus 9, and respectively with wiring board 3 Electrical connection, test pen 4 and test pen 5 include bar portion 41 and nib 42, the bar portion 41 of test pen 4 and the bar portion 51 of test pen 5 Hinged, hinged place is equipped with torsional spring 10, and the bar portion 41 of test pen 4 is surrounded by insulating materials with 51 outside of bar portion of test pen 5.

Since the bar portion of test pen 4 and test pen 5 is hinged, and it is equipped with torsional spring 10, the end of 10 trend of torsional spring, two test pen Be located remotely from each other, in use, user can the test pen that is hinged of single-hand handling ＆, according to two contact points of practical circuit to be tested Distance adjusts the distance between two test pen ends by clutching two test pens, the end of two test pens is made to be connect with tested point It touches, a test pen is respectively held without two hands, another hand can pick up shell 1, check the numerical value on display screen 2, use It is convenient, safety；And the winding winding apparatus in shell 1 can be by the automatic rollback of p-wire, length is not enough pulled outwardly using power, winding Winding apparatus can release detection line, and when without too long p-wire, winding winding apparatus can be by p-wire rollback, circuit rule It is whole, degree of safety higher.

Preferably, winding winding apparatus 8 includes both ends and the hinged mandrel 81 of shell 1, is wrapped in the bullet in 81 outside of mandrel Spring 82, one end and the mandrel 81 of spring 82 are fixed, and the other end is fixed with shell 1.When p-wire 6 is pulled outward, core is driven Axis 81 rotates, and mandrel 81 drives spring 82 to reverse, and the elastic force of itself of spring 82 makes it be intended to set back, to be surveyed in release Since the twisting resistance of spring 82 is by 6 automatic rollback of p-wire when trying line 6.

Preferably, one end of p-wire 6 passes through the through-hole 83 on mandrel 81, and is pierced by from the end of mandrel 81, with circuit Plate 3 is electrically connected, and the other end of p-wire 6 is wrapped on mandrel 81, and is pierced by outlet hole and is electrically connected with test pen 4.P-wire 6 from The end of mandrel 81 is pierced by, and mandrel 81 is made not to be wound one end that p-wire 6 is connect with circuit board 3 in rotation.

Preferably, winding winding apparatus 9 includes both ends and the hinged mandrel 91 of shell 1, is wrapped in the bullet in 91 outside of mandrel Spring 92, one end and the mandrel 91 of spring 92 are fixed, and the other end is fixed with shell 1.When p-wire 7 is pulled outward, core is driven Axis 91 rotates, and mandrel 91 drives spring 92 to reverse, and the elastic force of itself of spring 92 makes it be intended to set back, to be surveyed in release Since the twisting resistance of spring 92 is by 7 automatic rollback of p-wire when trying line 7.

Preferably, one end of p-wire 7 passes through the through-hole 93 on mandrel 91, and is pierced by from the end of mandrel 91, with circuit Plate 3 is electrically connected, and the other end of p-wire 7 is wrapped on mandrel 91, and is pierced by outlet hole and is electrically connected with test pen 5.P-wire 7 from The end of mandrel 91 is pierced by, and mandrel 91 is made not to be wound one end that p-wire 7 is connect with circuit board 3 in rotation.

Preferably, the bar portion of test pen 4 and test pen 5 is Telescopic rod structure, and the length of test pen can also basis when use Actual demand is adjusted, more convenient to use.

A hand one-handed performance can be used to be connect with test point for a kind of circuit detector described in the present embodiment, two detection pens It touches, detection length is adjustable, easy to operate；The long part rollback that can be automatically stretched out p-wire equipped with winding winding apparatus In shell, regular circuit improves safety and ease of use.

One embodiment of the utility model is described in detail above, but the content is only the utility model Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model All the changes and improvements etc., should all still belong within the patent covering scope of the utility model.

Claims (7)

1. a kind of circuit detector, including shell, the display screen on the shell, the circuit board in the shell, First test pen, the second test pen, the first p-wire and the second p-wire, it is characterised in that：It is additionally provided with first in the shell Wind winding apparatus and the second winding winding apparatus, one end of first p-wire and second p-wire respectively with it is described First test pen and second test pen electrical connection, the other end pass through the outlet hole on the shell to be respectively wound around described the On one winding winding apparatus and the second winding winding apparatus, and tested respectively with the circuit board electrical connection, described first Pen and second test pen include bar portion and nib, the bar portion of the bar portion of first test pen and second test pen Hinged, hinged place is equipped with torsional spring, and insulation is surrounded by the outside of the bar portion of first test pen and the bar portion of second test pen Material.

2. circuit detector according to claim 1, it is characterised in that：The first winding winding apparatus include both ends with First mandrel of the housing hinge, the first spring being wrapped on the outside of first mandrel, one end of first spring with First mandrel is fixed, and the other end is fixed with the shell.

3. circuit detector according to claim 2, it is characterised in that：One end of first p-wire passes through described the First through hole on one mandrel, and be pierced by from the end of first mandrel, with the circuit board electrical connection, first test The other end of line is wrapped on first mandrel, and is pierced by the outlet hole and is electrically connected with first test pen.

4. circuit detector according to claim 1 or 2, it is characterised in that：The second winding winding apparatus includes two Second mandrel at end and the housing hinge, the second spring being wrapped on the outside of second mandrel, the one of the second spring End is fixed with second mandrel, and the other end is fixed with the shell.

5. circuit detector according to claim 4, it is characterised in that：One end of second p-wire passes through described the The second through-hole on two mandrels, and be pierced by from the end of second mandrel, with the circuit board electrical connection, second test The other end of line is wrapped on second mandrel, and is pierced by the outlet hole and is electrically connected with second test pen.

6. circuit detector according to claim 1 or 2, it is characterised in that：The bar portion of first test pen is flexible Rod structure.

7. circuit detector according to claim 1 or 2, it is characterised in that：The bar portion of second test pen is flexible Rod structure.