CN210982604U

CN210982604U - Intelligent digital loop resistance tester

Info

Publication number: CN210982604U
Application number: CN201921131725.9U
Authority: CN
Inventors: 毕青春
Original assignee: Yangzhou Huadian Electric Co ltd
Current assignee: Yangzhou Huadian Electric Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-07-10
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses an intelligent digital loop resistance tester, which comprises a lower box body and an upper cover which is connected with the upper edge of the lower box body in a folding way, wherein a tester body and an accessory cavity for placing accessories are arranged in the lower box body; the fixed component of the tested piece comprises a fixed contact, a long contact and a movable contact, the fixed contact, the long contact and the movable contact respectively comprise a bottom sheet and a folding sheet which are hinged along the edges, the hinged shafts of the bottom sheet and the folding sheet are provided with torsional springs, the bottom sheet is connected with the upper cover, and the torsional springs are used for driving the folding sheet to be attached to the upper cover; the long contact is connected with the lower box body connecting edge of the upper cover, and the movable contact can slide on the inner surface of the upper cover. The utility model discloses a fixed subassembly of piece is surveyed to upper cover can accomplish to the centre gripping of being surveyed the piece and fixed, through position, the angle of adjustment slide and select the movable contact of different positions on the slide, can be surveyed the piece to the irregularity and form more reliable fixed and electricity and be connected.

Description

Intelligent digital loop resistance tester

Technical Field

The utility model relates to an intelligent digital loop resistance tester belongs to resistance tester technical field.

Background

The resistance tester is used for testing the resistance of circuit or electronic component, and in order to facilitate carrying, the resistance tester among the prior art is usually placed in a case, can accomodate various annex simultaneously in the case, like test pen, alligator clip etc. for connect tester and by the test piece.

When the resistance tester is used, a plurality of persons are generally needed to operate, one person is responsible for connecting a tested piece to the tester, and the other person is responsible for operating the tester, so that the efficiency is low, the tested piece is fixed on a test pen of the resistance tester by a human workpiece, the connection reliability is poor, and the test accuracy is influenced.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies of the prior art, an object of the utility model is to provide an intelligent digital loop resistance tester.

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

an intelligent digital loop resistance tester comprises a lower box body and an upper cover which is connected to the upper edge of the lower box body in a foldable manner, wherein a tester body and an accessory cavity for placing accessories are arranged in the lower box body; the fixed component of the tested piece comprises a fixed contact, a long contact and a movable contact, the fixed contact, the long contact and the movable contact respectively comprise a bottom piece and a folding piece which are hinged along the edges, the hinged shaft of the bottom piece and the folding piece is provided with a torsional spring, the bottom piece is connected with the upper cover, and the torsional spring is used for driving the folding piece to be attached to the upper cover; the long contact is connected with the lower box body connecting edge of the upper cover, and the movable contact can slide on the inner surface of the upper cover.

In order to further adjust the working range and the angle of the movable contact, the utility model discloses preferred still include spout and slide, the spout is connected in the upper cover, be equipped with the slider in the spout, fastening screw is passed through in the slider to the one end of slide, the film of movable contact is connected in the slide.

Preferably, the movable contact is provided in plurality.

In order to improve the fixing reliability of the bottom plate, the lower surface of the bottom plate is also provided with anti-skid projections.

The bottom sheet of the utility model is preferably connected to the upper cover or the sliding plate through screws.

In order to facilitate the fixing of the circuit board, the utility model discloses still include the ejector pin, the ejector pin passes through threaded connection at the upper cover border, ejector pin one end is equipped with the presser foot, and the other end can be dismantled and connect in the hand wheel.

In order to facilitate the disassembly and assembly of the ejector rod, a hand wheel is inserted into one end of the ejector rod, the end part of the ejector rod is connected to the hand wheel through a hand wheel screw, and a separation blade is further arranged between the hand wheel screw and the hand wheel.

After opening in order to further promote the upper cover, the utility model discloses holistic stability avoids under the effect of being surveyed a piece gravity, wholly takes place to empty, the utility model discloses on cover still to be equipped with the landing leg along the lateral part, the landing leg is preferred to be covered on through bolted connection and follows.

In order to facilitate the storage and folding of the supporting legs, the bolt is further sleeved with a spring, one end of the spring is connected with the bolt, and the other end of the spring is connected with the upper edge of the upper cover.

In order to avoid the presser foot to crowd bad by survey piece, promote the presser foot simultaneously to the fixed degree of being surveyed the piece, the utility model discloses the quilt of presser foot is tested the piece and is connected the face and still is equipped with the rubber pad.

The utility model discloses the beneficial effect who reaches:

1. the utility model discloses a fixed subassembly of piece is surveyed to upper cover can accomplish the centre gripping and fixed to the piece is surveyed to can satisfy the centre gripping demand that different shapes and size were surveyed the piece, through the position of adjustment slide, angle and select the movable contact of different positions on the slide, can be connected with the electricity to the more reliable fixed of piece formation is surveyed to irregularity, in the testing process, does not need other people to assist, only needs can accomplish the testing process alone.

2. The utility model discloses the volume of box among the excessive increase prior art only needs deepen the upper cover among the prior art a little can.

3. When part of the contacts (including the long contacts, the fixed contacts and the movable contacts) are not used, the folding pieces of the contacts can be tightly attached to the lower surface of the upper cover under the action of the torsion spring, so that the protrusions of the contacts are small, the influence on the flatness of the lower surface of the upper cover is reduced as much as possible, and the interference on a tested piece is avoided.

4. Landing leg and upper cover are gone up along can folding, when being tested the piece overweight, can avoid the utility model discloses take place to empty. When the landing leg is accomodate, can rotate to the position of flushing with the upper cover border, can fix under the elastic action of spring and cover the position of flushing along on with, do not occupy unnecessary space, do not influence pleasing to the eye.

Drawings

Fig. 1 is a top view of the whole structure of the present invention (the upper cover is fully opened);

fig. 2 is a cross-sectional view a-a of fig. 1 in accordance with the present invention;

fig. 3 is a cross-sectional view B-B of fig. 2 of the present invention (folded sheet not standing);

fig. 4 is a second cross-sectional view (folded sheet standing) of fig. 2, in accordance with the present invention;

fig. 5 is a partially enlarged view of fig. 1 (a hand wheel and a stem rod connecting structure) according to the present invention;

the meaning of the reference symbols in the figures: 1-lower box body; 2-covering the upper cover; 3-a stationary contact; 4-a chute; 302-long contacts; 6, a sliding plate; 7-a mandril; 11-a tester body; 12-an accessory cavity; 21-a leg; 22-bolt; 23-a spring; 301-moving contact; 31-a backsheet; 32-a folded sheet; 33-torsion spring; 311-screws; 312-non-slip bumps; 41-a slide block; 61-fastening screws; 71-presser foot; 72-a hand wheel; 73-hand wheel screw; 731-blocking sheet.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 5: the embodiment discloses an intelligent digital loop resistance tester, including lower box 1 and collapsible upper cover 2 of following on lower box 1, be equipped with tester body 11 and be used for placing the annex chamber 12 of annex in lower box 1, 2 internal surfaces of upper cover are equipped with and are surveyed a fixed subassembly.

Specifically, the method comprises the following steps: the fixed component of the tested piece comprises a fixed contact 3, a long contact 302 and a movable contact 301, the fixed contact 3, the long contact 302 and the movable contact 301 comprise a bottom sheet 31 and a folding sheet 32 which are hinged along the edge, a torsional spring 33 is arranged on the hinged shaft of the bottom sheet 31 and the folding sheet 32, the bottom sheet 31 is connected with the upper cover 2 (including an indirect connection mode with the upper cover), and the torsional spring 33 is used for driving the folding sheet 32 to be attached to the upper cover 2.

The long contact 302 is connected to the lower case connecting edge of the upper cover 2, and the movable contact 301 is slidable on the inner surface of the upper cover 2.

It should be noted that: the movable contact 301, the fixed contact 3 and the long contact 302 in this embodiment are identical in structure and composition, and the long contact 302 is only longer in length, but the main difference between the three is that the movable contact, the fixed contact and the long contact is arranged at different positions on the upper cover 2.

Specifically, with reference to fig. 1 and 2: the sliding mode of the movable contact 301 on the inner surface of the upper cover 2 is as follows: the embodiment further comprises a sliding chute 4 and a sliding plate 6, wherein the sliding chute 4 is connected with the upper cover 2, a sliding block 41 capable of sliding along the sliding chute 4 is arranged in the sliding chute 4, one end of the sliding plate 6 is connected with the sliding block 41 through a fastening screw 61, and the bottom plate 31 of the movable contact 301 is connected with the sliding plate 6. When fastening screw 61 loosens, slider 41 can slide in the spout 4, and when fastening screw 61 fastened, slider 41 died in spout 4 through frictional force to spout 4 and slide 6 closely laminate, can avoid slide 6 to use fastening screw 61 to rotate as the axle center.

Specifically, the number of the movable contacts 301 is plural, and the holding range of the present embodiment can be increased.

The bottom surface of the bottom sheet 31 is also provided with a non-slip bulge 312. This is because the base sheet 31 is rotatable on the cover 2, in order to avoid rotation of the base sheet 31 during use (typically due to a shift in the point of application of the test piece to the laminate 32).

Specifically, the bottom plate 31 is connected to the upper cover 2 or the slide plate 6 by screws 311. After the screw 311 is tightened, the anti-slip projection 312 and the upper cover 2 are not rotated, and the whole stationary contact 3 is rotated by loosening the screw 311.

With reference to fig. 1 and 5: the embodiment further comprises a push rod 7, the push rod 7 is connected to the edge of the upper cover 2 through threads, one end of the push rod 7 is provided with a pressure foot 71, and the other end of the push rod 7 is detachably connected to a hand wheel 72. A rubber pad is also arranged on the connecting surface (end surface) of the tested piece of the presser foot 71. The rubber pad can improve the fixing force of the presser foot 71 on the tested piece, and the tested piece is prevented from being damaged by clamping.

Specifically, one end of the ejector rod 7 is inserted into the hand wheel 72, the end of the ejector rod 7 is connected to the hand wheel 72 through a hand wheel screw 73, and a blocking piece 731 is further arranged between the hand wheel screw 73 and the hand wheel 72. The diameter of ejector pin tip is less than the screw hole of upper cover 2, like this when ejector pin 7 does not use, can demolish hand wheel 72 earlier, then unscrew whole ejector pin 7 from this screw hole, then plug up this screw hole through rubber buffer etc. promotes upper cover 2's sealing performance.

In order to avoid the situation that the tested piece is too heavy, the upper edge of the upper cover 2 is inclined, the supporting legs 21 are further arranged on the side portions of the upper edge of the upper cover 2, the supporting legs 21 are connected to the upper edge of the upper cover through bolts 22, a spring 23 is further sleeved on the specific bolts 22, one end of the spring 23 is connected with the bolt 22, and the other end of the spring 23 is connected with the upper edge of the upper cover. The spring 23 provides a certain friction between the leg 21 and the upper edge of the upper cover, and the leg 21 can be fixed when the leg 21 is rotated to a certain angle.

When in use, the upper cover 2 is opened, and after the upper cover 2 is opened, the upper cover can be horizontally placed, namely, as shown in figure 1: when testing rod-shaped electronic devices, only the fixed contact 3 and the movable contact 301 are needed, the tester body 11 is connected with the fixed contact 3 and the movable contact 301 through a test pen or an alligator clip, then the distance between the sliding plate 6 and the fixed contact 3 is adjusted according to the length adjustment of the electronic devices, and the sliding plate 6 is preferably parallel to the long contact 302 due to the rod-shaped electronic devices (if the sliding plate is not parallel, the test can be carried out only by ensuring that the folding piece 32 of the fixed contact 3 is basically parallel to the folding piece 32 of the movable contact 301). Finally, the electronic device is placed between the folding piece 32 of the fixed contact 3 and the folding piece 32 of the movable contact 301, and under the action of the torsion spring 33, the two folding pieces 32 can be tightly attached to the tested electronic device.

When the resistance on the circuit board needs to be measured, the ejector rod 7 is adjusted by mounting, the circuit board can be fixed by placing the circuit board between the presser foot 71 and the folding sheet 32 of the long contact 302, and one end of the circuit board can also be fixed through the folding sheet 32 of the stationary contact 3. When a certain contact is needed, under the action of the torsion spring 33, the folding sheet 32 of the contact can be closely attached to the lower surface of the upper cover 2, so that the interference on a tested piece is avoided, the protrusion of the contact is smaller, and the influence on the flatness of the lower surface of the upper cover is reduced as much as possible.

When the test is finished, the ejector rod 7 is detached, the ejector rod 7 is placed in the accessory cavity 12, and if the accessory cavity 12 has space, the sliding plate 6 can be detached and placed in the accessory cavity 12, or can be left on the upper cover 2 without detaching. When the upper cover 2 is covered with the lower case 1, it is preferable to lay an insulating pad or a cushion pad on the lower surface of the upper cover 2 to prevent the contacts from contacting the tester body 11.

The utility model discloses a fixed subassembly of piece is surveyed of upper cover 2 can accomplish to the centre gripping of being surveyed the piece and fix to can satisfy the not centre gripping demand of unidimensional piece being surveyed, through adjusting slide 6's position, angle and select slide 6 on the movable contact 301 of different positions, can be surveyed the piece to the irregularity and form more reliable fixed and be connected with the electricity.

When a part of the contact is not used, the folding piece 32 of the contact can be tightly attached to the lower surface of the upper cover 2 under the action of the torsion spring 33, and the interference to the tested piece is avoided.

The supporting legs 21 and the upper edge of the upper cover can be folded, and when the tested piece is too heavy, the falling of the embodiment can be avoided. When the supporting legs 21 are stored, the supporting legs can be rotated to be flush with the edge of the upper cover 2, so that redundant space is not occupied, and the appearance is not influenced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. An intelligent digital loop resistance tester comprises a lower box body (1) and an upper cover (2) which is connected to the upper edge of the lower box body (1) in a foldable manner, wherein a tester body (11) and an accessory cavity (12) for placing accessories are arranged in the lower box body (1), and is characterized in that a tested piece fixing component is arranged on the inner surface of the upper cover (2);

the fixed component of the tested piece comprises a fixed contact (3), a long contact (302) and a movable contact (301), the fixed contact (3), the long contact (302) and the movable contact (301) respectively comprise a bottom sheet (31) and a folding sheet (32) which are hinged along the edges, a torsional spring (33) is arranged on a hinged shaft of the bottom sheet (31) and the folding sheet (32), the bottom sheet (31) is connected with the upper cover (2), and the torsional spring (33) is used for driving the folding sheet (32) to be attached to the upper cover (2);

the long contact (302) is connected with the lower box body connecting edge of the upper cover (2), and the movable contact (301) can slide on the inner surface of the upper cover (2).

2. The intelligent digital loop resistance tester according to claim 1, further comprising a sliding chute (4) and a sliding plate (6), wherein the sliding chute (4) is connected to the upper cover (2), a sliding block (41) is arranged in the sliding chute (4), one end of the sliding plate (6) is connected to the sliding block (41) through a fastening screw (61), and the bottom plate (31) of the movable contact (301) is connected to the sliding plate (6).

3. An intelligent digital loop resistance tester as claimed in claim 2, wherein said movable contact (301) is plural.

4. The intelligent digital loop resistance tester of claim 1, wherein the bottom surface of the bottom sheet (31) is further provided with anti-skid protrusions (312).

5. The intelligent digital loop resistance tester of claim 2, wherein the base sheet (31) is attached to the top cover (2) or the sled (6) by screws (311).

6. The intelligent digital loop resistance tester as claimed in claim 1, further comprising a top bar (7), wherein the top bar (7) is connected to the edge of the upper cover (2) through a screw thread, one end of the top bar (7) is provided with a pressure foot (71), and the other end is detachably connected to a hand wheel (72).

7. The intelligent digital loop resistance tester as claimed in claim 6, wherein one end of the push rod (7) is inserted into a hand wheel (72), the end of the push rod (7) is connected to the hand wheel (72) through a hand wheel screw (73), and a blocking piece (731) is further arranged between the hand wheel screw (73) and the hand wheel (72).

8. The intelligent digital loop resistance tester as claimed in claim 1, wherein the upper cover (2) is further provided with legs (21) at the side part of the upper edge, and the legs (21) are connected to the upper edge of the upper cover through bolts (22).

9. The intelligent digital loop resistance tester as claimed in claim 8, wherein the bolt (22) is further sleeved with a spring (23), one end of the spring (23) is connected with the bolt (22), and the other end is connected with the upper edge of the upper cover.

10. The intelligent digital loop resistance tester as claimed in claim 6, wherein the tested piece connecting surface of the pressure foot (71) is further provided with a rubber pad.