CN2802515Y

CN2802515Y - Test pencil device

Info

Publication number: CN2802515Y
Application number: CN 200520030696
Authority: CN
Inventors: 朱文龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-20
Filing date: 2005-05-20
Publication date: 2006-08-02
Anticipated expiration: 2015-05-20

Abstract

The utility model relates to an electricity testing pencil device, which reserves a test contact of the traditional screwdriver type electricity testing pencil and is added with a writing function. In an insulating pencil body, a test contact, a current limiting resistor, an electricity testing device and a hand touching electrode are sequentially connected, wherein the pencil body is composed of a pencil rod and a pen cap, one end of the pencil rod is provided with a screwdriver type contact, the current limiting resistor, a writing pencil core and a spring wound on the pencil core are arranged in the pencil rod, a writing pencil nib of the pencil core is exposed from a hole of a metallic pencil head arranged at the other end of the pencil nib, the electrical connection of both ends of the pencil rod is communicated by the spring wound on the pencil core. An electricity testing luminous part can be arranged in the pencil rod or in the pencil cap, the hand touching electrode is arranged on the pencil cap, the pencil cap is mutually matched and connected with the pencil rod, and the electricity testing pencil with the writing function is formed.

Description

A kind of test pencil device

Affiliated technical field

The utility model relates to a kind of handwriting constructional device of test pencil.Especially handwriting can be used as screwdriver and uses a kind of survey electric installation that can directly write again.

Background technology

Test pencil comprises that the test contact of multifunction test pencil mostly is to occur with the driver bit form, does not possess writing function at present.And effect easy to use when being difficult to reach the screwdriver contact and surveying electric operation with the test pencil that lettering pen head dummy formula occurs.Defective on the product makes troubles for people's use at present, is necessary to utilize the trend of present electrical and electronic component miniaturization, microminiaturization, and the problems referred to above are solved.

Summary of the invention

The purpose of this utility model provides a kind of traditional screwdriver electroprobe test contact form that both kept, and has increased the test pencil device of lettering pen function again.

The technical scheme that its technical matters that solves the utility model adopts is: test contact in the insulation handwriting, and current-limiting resistance is surveyed electroluminescent device and hand touched electrode and is electrically connected in proper order, and handwriting is made up of penholder and cap for brush two parts.At an end of plastic penholder one metal screw knife contacts is installed, current-limiting resistance is housed in the penholder, write pen core and the spring on the pen core.The nib of writing pen core exposes from the metal nib hole that the penholder other end is installed, and the penholder test lead is through being communicated with around the spring of writing on the pen core with being electrically connected of lettering pen head end.Survey electroluminescent device and can be contained in the penholder, also can be contained in the cap for brush, the hand touched electrode is installed on the cap for brush.After being connected, the metal pen head end of penholder and the cap for brush can use as test pencil.If the cap for brush and penholder test contact end cooperate be connected after, just can do the lettering pen use.But the existing electronics of survey electric installation part adapted of the present utility model is surveyed electric structure, and also available common neon bulb is surveyed electric structure.Also small-sized neon bulb and miniature resistance collection dress one can be placed in the penholder in case of necessity, assemble into test pencil integral body with the cap for brush by pen core spring, metal nib, connection spring.

The beneficial effects of the utility model are, have kept the ripe practical screwdriver contact form of test pencil tradition, have increased the function of lettering pen again, and are simple in structure, implement nimble.

Description of drawings

Below in conjunction with the embodiment synoptic diagram to the further brief description of the utility model.

Fig. 1 is that first cooperates the embodiment diagrammatic cross-section.

Fig. 2 is second and cooperates the embodiment diagrammatic cross-section.

Fig. 3 is the 3rd and cooperates the embodiment diagrammatic cross-section.

1. test contact among the figure, 2. insulation penholder, 3. current-limiting resistance, 4. spring is 5. write pen core, and 6. the metal nib 7. connects spring, and 8. the cap for brush is 9. surveyed electroluminescent device (electronics is surveyed electricity or neon bulb structure), 10. the hand touched electrode.

Embodiment

In cooperation embodiment illustrated in figures 1 and 2, test contact 1. the insulation penholder 2. an end and stretch into its cavity, contact with a current-limiting resistance end 3., 5. 4. afterbody and the spring 5. gone up around pen core contact the current-limiting resistance other end 3. with writing pen core.6. pen core nib 5. exposes the hole from the metal nib of the penholder other end.6. the spring other end 4. then produces with the metal nib and electrically contacts.2. 6. the metal nib be threaded with penholder, is convenient to pen core replacing 5..

When inner chamber was equipped with (transparent) cap for brush of surveying electric installation and 8. is connected with penholder writing end 2., then 7. 6. the metal nib just produced and electrically contact with the spring that is connected of the cap for brush in 8., and then 9. be connected with the survey electroluminescent device of the cap for brush in 8..When test contact is felt voltage signal on 1., by current-limiting resistance 3., spring 4., the metal nib 6., connect spring 7., survey electroluminescent device 9. with the hand touched electrode 10. conducting produce light and show.

In another embodiment shown in Figure 3, test contact 1. (transparent) insulation penholder 2. an end stretch into its cavity, by current-limiting resistance 3. with survey electroluminescent device and 9. be connected.Spring through 5. going up around pen core 4. with penholder 2. the metal nib of the other end 6. produce and be electrically connected; 7. 10. produce electric connection with the hand touched electrode through the connection spring of the cap for brush in 8. again, form complete survey electric system.

If with the cap for brush 8. with the penholder of switching direction 2. test lead be connected mutually, just the utility model has become a both artistic and practical lettering pen.

Claims

1, a kind of test pencil device, in the insulation handwriting, test contact, current-limiting resistance, surveying electroluminescent device and hand touched electrode is electrically connected in proper order, it is characterized in that: handwriting is made up of penholder and cap for brush two parts, at an end of plastic penholder one metal screw knife contacts is installed, current-limiting resistance is housed in the penholder, write pen core, be wound with spring on the pen core, the nib of writing pen core is to expose from the metal nib hole that the penholder other end is installed, being electrically connected of penholder test lead and lettering pen head end is by around the spring conducting of writing on the pen core, survey electroluminescent device and can be contained in the penholder or be contained in the cap for brush, the hand touched electrode is housed on the cap for brush cooperates with penholder just can form and be with writing function test pencil.