CN220154565U - Weak current detector - Google Patents

Abstract

The utility model relates to the technical field of electricity measuring equipment, in particular to a weak current detector. The wire winding cover is installed at the bottom of the detector body, a connecting wire is arranged in the wire winding cover and is connected with the detector body, a detection head is arranged at the bottom of the connecting wire, and a winding component for accommodating the connecting wire is arranged in the wire winding cover. According to the utility model, the wire collecting cover is arranged below the detector body, the wire collecting cover is rotationally provided with the wire collecting rotary drum, the wire collecting rotary drum is internally provided with the hand wheel capable of being pulled outwards through the tension spring, the sliding plate and the connecting shaft, the inner side of the hand wheel is provided with the limiting inserted link, and the hand wheel is attached to the front end surface of the accommodating cover under the action of the tension spring after accommodating is finished, so that the limiting inserted link on the inner side of the hand wheel is inserted into the limiting insertion hole formed in the wire collecting cover, thereby limiting and fixing the wire collecting rotary drum, avoiding self-adaptive rotation of the wire collecting rotary drum due to self-gravity of the connecting wire in the carrying process, and improving the wire collecting stability.

Description

Weak current detector

Technical Field

The utility model relates to the technical field of electricity measuring equipment, in particular to a weak current detector.

Background

Electrical engineering is a classification of electrical applications, which can be classified into strong and weak electricity according to the intensity of power transmitted by the electrical power. Weak current generally refers to a direct current circuit or an audio frequency, video frequency circuit, a network circuit and a telephone circuit, alternating current voltage is generally within 36V, and weak current detection used in the current market generally comprises a universal meter, an ammeter and other devices, so that the weak current detection device has a good detection effect, and the weak current detection device needs to be connected with a detection pen by using a power line for detection.

The Chinese patent with the bulletin number of CN218445729U discloses intelligent detection equipment based on a weak current engineering line, and the intelligent detection equipment based on the weak current engineering line is used through the cooperation of a wire collecting cover, a control knob, a connecting rod and a winding frame, so that the telescopic length of a power line is conveniently controlled, the rotation angle of the control knob is conveniently adjusted through the cooperation of a positioning block and a limiting inserted bar, the damage caused by the impact of a detection pen point is avoided as much as possible through the cooperation of the telescopic rod, a buffer spring and a buffer plate, the telescopic length of the power line is conveniently controlled, and the effect that the length overlong of the power line interferes with the work of an operator is avoided as much as possible.

However, the above-mentioned device still has some drawbacks, in the winding process, the angle of the knob is limited by the cooperation of the positioning block and the limiting insert rod, but because the limiting insert rod is movably arranged between the positioning block and the knob, no external acting force is provided, and in the carrying process, the position of the limiting insert rod may be moved, so that the stability of the power cord storage is insufficient.

Disclosure of Invention

Aiming at the problems existing in the background technology, a weak current detector is provided. The wire winding cover is arranged below the detector body, the wire winding cover rotates to be provided with the wire winding rotary drum, the hand wheel capable of being pulled outwards is arranged in the wire winding rotary drum through the tension spring, the sliding plate and the connecting shaft, the hand wheel is attached to the front end face of the housing cover under the action of the tension spring after the housing is completed, the limiting inserting rod on the inner side of the hand wheel is inserted into the limiting inserting hole formed in the wire winding cover, the wire winding rotary drum is limited and fixed, self-adaptive rotation of the wire winding rotary drum due to self gravity of the connecting wire is avoided in the carrying process, and the wire winding stability is improved.

The utility model provides a weak current detector which comprises a detector body and a wire collecting cover, wherein the wire collecting cover is arranged at the bottom of the detector body, a connecting wire is arranged in the wire collecting cover and connected with the detector body, a detection head is arranged at the bottom of the connecting wire, and a winding component for accommodating the connecting wire is arranged in the wire collecting cover.

The winding assembly comprises a winding rotary drum, a tension spring, a sliding plate, a connecting shaft, a hand wheel and a limiting inserted rod, wherein one end of the winding rotary drum is arranged in a winding cover in a rotating mode through a bearing, the other end of the winding rotary drum penetrates through the winding cover, the tension spring is connected with the tension spring, the sliding plate is connected with the tension spring, the connecting shaft is arranged on the sliding plate, one end of the connecting shaft penetrates through the winding rotary drum to be connected with the hand wheel, the limiting inserted rod is arranged on the inner side of the hand wheel, a plurality of limiting insertion holes which are evenly distributed along the circumference are formed in the winding cover, and the corresponding limiting insertion holes are spliced with the limiting inserted rod.

Preferably, the outer side of the connecting shaft is provided with key teeth, and tooth grooves matched with the key teeth are formed in the inner wall of the winding rotary drum.

Preferably, the key teeth and the tooth grooves are all arranged in a plurality, and are uniformly distributed on the inner side of the winding drum along the circumference.

Preferably, a moving plate is slidably arranged in the detection head, and a detection probe is installed in the middle of the moving plate in a penetrating manner.

Preferably, the two sides of the bottom of the moving plate are respectively provided with an elastic sheet, and the elastic sheets are connected with the inner wall of the detection head.

Preferably, the detection head is also internally provided with a wiring seat, and the wiring seat is correspondingly arranged with the detection probe.

Preferably, the material of the moving plate is insulating rubber.

Compared with the prior art, the utility model has the following beneficial technical effects: the wire winding cover is arranged below the detector body, the wire winding cover rotates to be provided with the wire winding rotary drum, the hand wheel capable of being pulled outwards is arranged in the wire winding rotary drum through the tension spring, the sliding plate and the connecting shaft, the limiting inserting rod is arranged on the inner side of the hand wheel, the wire winding rotary drum can be driven to store a connecting wire through the rotating hand wheel, the hand wheel is attached to the front end face of the storage cover under the action of the tension spring after storage is completed, the limiting inserting rod on the inner side of the hand wheel is inserted into the limiting inserting hole formed in the wire winding cover, and therefore the rotating angle of the hand wheel and the wire winding rotary drum are limited and fixed, self-adaptive rotation of the wire winding rotary drum is driven by self-gravity of the connecting wire in the carrying process is avoided, and the wire winding stability is improved.

Drawings

FIG. 1 is a schematic diagram of a weak current detector according to the present utility model;

FIG. 2 is a schematic diagram of a side cut structure of the wire takeup cover of FIG. 1;

FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 2;

FIG. 4 is a schematic top view of the winding drum of FIG. 3;

fig. 5 is a schematic cross-sectional view of the test head of fig. 1.

Reference numerals: 1. a detector body; 2. a wire winding cover; 3. a connecting wire; 4. a detection head; 5. a winding drum; 6. a tension spring; 7. a slide plate; 8. a connecting shaft; 9. a hand wheel; 10. a limit inserted link; 11. limiting jack; 12. key teeth; 13. tooth slots; 14. a moving plate; 15. detecting a probe; 16. an elastic sheet; 17. and a wire holder.

Detailed Description

Example 1

As shown in fig. 1-4, the weak current detector provided by the utility model comprises a detector body 1 and a wire collecting cover 2, wherein the wire collecting cover 2 is arranged at the bottom of the detector body 1, a connecting wire 3 is arranged in the wire collecting cover 2, the connecting wire 3 is connected with the detector body 1, a detecting head 4 is arranged at the bottom of the connecting wire 3, and a winding component for accommodating the connecting wire 3 is arranged in the wire collecting cover 2; the wire winding subassembly includes wire winding rotary drum 5, tension spring 6, slide 7, connecting axle 8, hand wheel 9 and spacing inserted bar 10, wire winding rotary drum 5 one end passes through the bearing rotation and sets up in receiving wire cover 2, the other end passes receiving wire cover 2, wire winding rotary drum 5 internal connection has tension spring 6, tension spring 6 is connected with slide 7, be provided with connecting axle 8 on the slide 7, the one end of connecting axle 8 passes wire winding rotary drum 5 and is connected with hand wheel 9, the inboard of hand wheel 9 is provided with spacing inserted bar 10, a plurality of spacing jacks 11 along circumference evenly distributed have been seted up on receiving wire cover 2, correspond spacing jack 11 and spacing inserted bar 10 grafting.

Further, the outside of connecting axle 8 is provided with key tooth 12, the tooth's socket 13 with key tooth 12 complex is seted up to the inner wall of wire winding rotary drum 5, key tooth 12 and tooth's socket 13 all are provided with a plurality ofly, and along circumference evenly distributed in wire winding rotary drum 5 inboard, when using, when applying rotation driving force to hand wheel 9, hand wheel 9 drives connecting axle 8 and rotates, and the key tooth 12 of connecting axle 8 outer wall forms axial effort to wire winding rotary drum 5's inner wall, and then drives wire winding rotary drum 5 and rotates, accomodates connecting wire 3.

The working principle of the utility model is as follows: when the connecting wire 3 is required to be stored, the hand wheel 9 is pulled outwards firstly, the hand wheel 9 drives the sliding plate 7 to move outwards through the connecting shaft 8, the tension spring 6 is pulled when the sliding plate 7 moves, the tension spring 6 forms elastic acting force, after the hand wheel 9 is pulled outwards for a certain distance, the limiting inserted rod 10 on the inner side of the hand wheel 9 is separated from the limiting inserting hole 11, the hand wheel 9 is rotated at the moment, the hand wheel 9 drives the connecting shaft 8 to rotate, the key teeth 12 on the outer wall of the connecting shaft 8 form axial acting force on the inner wall of the winding drum 5, the winding drum 5 is driven to rotate, the connecting wire 3 is stored in the rotating process of the winding drum 5, after the storage is completed, the hand wheel 9 is loosened, the sliding plate 7 loses the external acting force, the connecting shaft 8 is driven to reset under the elastic acting force of the tension spring 6, the hand wheel 9 is pulled by the connecting shaft 8, the limiting inserted into the limiting inserting hole 11 on the corresponding position of the limiting inserted rod 10 on the inner side of the hand wheel 9, the rotating angle of the hand wheel 9 and the winding drum 5 are limited and fixed, the self-adaptive rotation of the winding drum 5 is driven due to the gravity of the connecting wire 3 in the carrying process is avoided, and the wire winding stability is improved.

Example two

As shown in fig. 5, the weak current detector provided by the utility model further comprises, based on the above embodiment, a moving plate 14 slidably arranged in the detecting head 4, a detecting probe 15 penetrating through the middle of the moving plate 14, elastic pieces 16 arranged on two sides of the bottom of the moving plate 14, the elastic pieces 16 connected with the inner wall of the detecting head 4, a wire holder 17 arranged in the detecting head 4, the wire holder 17 corresponding to the detecting probe 15, and insulating rubber material of the moving plate 14.

In this embodiment, during the use, through being provided with movable plate 14 in detecting head 4, under the effect of elastic sheet 16, the detection probe 15 of installing on movable plate 14 is in the separation condition with wire holder 17 under the nature condition, both are in the condition of breaking circuit, avoid the unexpected device that surpasses rated power scope of touching during the detection, lead to appearing burning out the condition, when needs normal detection, through contact detection probe 15 with wait to detect utensil, and press detecting head 4, make the inner wall extrusion elastic sheet 16 of detecting head 4, drive elastic sheet 16 shrink, and then the one end and the wire holder 17 of detection probe 15 are connected, both form the passageway, can detect the utensil, the convenience of overall operation is stronger, and the material of movable plate 14 is insulating rubber, can effectively avoid the electric leakage transmission on the utensil to detecting head 4 during the nature condition, the security of operation has been improved.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (7)

1. The weak current detector is characterized by comprising a detector body (1) and a wire collecting cover (2), wherein the wire collecting cover (2) is arranged at the bottom of the detector body (1), a connecting wire (3) is arranged in the wire collecting cover (2), the connecting wire (3) is connected with the detector body (1), a detecting head (4) is arranged at the bottom of the connecting wire (3), and a winding component for accommodating the connecting wire (3) is arranged in the wire collecting cover (2);

the winding assembly comprises a winding drum (5), a tension spring (6), a sliding plate (7), a connecting shaft (8), a hand wheel (9) and a limiting inserting rod (10), wherein one end of the winding drum (5) is rotatably arranged in a winding cover (2) through a bearing, the other end of the winding drum passes through the winding cover (2), the tension spring (6) is connected with the winding drum (5) internally, the tension spring (6) is connected with the sliding plate (7), the connecting shaft (8) is arranged on the sliding plate (7), one end of the connecting shaft (8) passes through the winding drum (5) and is connected with the hand wheel (9), the limiting inserting rod (10) is arranged on the inner side of the hand wheel (9), and a plurality of limiting inserting holes (11) which are uniformly distributed along the circumference are correspondingly inserted into the limiting inserting rod (10).

2. The weak current detector according to claim 1, characterized in that the outer side of the connecting shaft (8) is provided with key teeth (12), and the inner wall of the winding drum (5) is provided with tooth grooves (13) matched with the key teeth (12).

3. A weak current detector according to claim 2, characterized in that the plurality of key teeth (12) and tooth slots (13) are arranged and uniformly distributed on the inner side of the winding drum (5) along the circumference.

4. The weak current detector according to claim 1, characterized in that a moving plate (14) is slidably arranged in the detecting head (4), and a detecting probe (15) is installed in the middle of the moving plate (14) in a penetrating manner.

5. The weak current detector according to claim 4, wherein the two sides of the bottom of the movable plate (14) are provided with elastic pieces (16), and the elastic pieces (16) are connected with the inner wall of the detecting head (4).

6. The weak current detector according to claim 4, wherein a wire holder (17) is further provided in the detection head (4), and the wire holder (17) is disposed corresponding to the detection probe (15).

7. The weak current detector as defined by claim 4, wherein the movable plate (14) is made of insulating rubber.