CN208921760U - A kind of ammeter with overcurrent protection - Google Patents

Abstract

The utility model belongs to ammeter equipment technical field, in particular a kind of ammeter with overcurrent protection, including current meter body, the bottom of the current meter body is fixedly installed with cabinet, the side of the cabinet is equipped with opening, supporting leg there are four being fixedly mounted in the bottom interior wall of the cabinet, the top of four supporting legs is fixedly installed with the same bar blocks, the top of the bar blocks is in contact with the top inner wall of cabinet, and side of the bar blocks far from box opening is in contact with the side inner wall of cabinet, the bar blocks are opened up close to the side of box opening there are three the first groove, test test pencil is equipped in first groove, and first groove far from offering the second groove on the side inner wall of box opening.The utility model of simple structure and strong practicability, convenient for taking the service life with extended testing system test pencil, is manipulated simple and convenient by protecting to the test test pencil in ammeter.

Description

A kind of ammeter with overcurrent protection

Technical field

The utility model relates to ammeter equipment technical field more particularly to a kind of ammeters with overcurrent protection.

Background technique

Ammeter be detect electric current a kind of instrument, acted in terms of detecting electric current it is great, especially in terms of teaching, student The knowledge in terms of experiment contact electrodynamic is done for the first time, it will usually be used the ammeter with overcurrent protection, be prevented student first Secondary operation experiments, electric current is excessive directly to impact ammeter internal electronic element, causes ammeter load is excessive can not make again With.

But in the prior art, since common test test pencil would generally be placed together after the end of the experiment with ammeter In assembly case, the electronic equipment placed in assembly case is relatively more, convenient for taking out when use, and tests the pen tip long-time of test pencil When being contacted with assembly case and some electronic equipments, phenomena such as being easy to appear abrasion and bending, influences using effect, shortens and uses Service life, it is therefore proposed that a kind of ammeter with overcurrent protection.

Utility model content

Purpose of the utility model is to solve disadvantages existing in the prior art, and the one kind proposed is protected with overcurrent The ammeter of shield.

To achieve the goals above, the utility model adopts the technical scheme that a kind of electric current with overcurrent protection Table, including current meter body, the bottom of the current meter body are fixedly installed with cabinet, and the side of the cabinet is equipped with opening, Supporting leg there are four being fixedly mounted in the bottom interior wall of the cabinet, the top of four supporting legs is fixedly installed with the same bar shaped Block, the top of the bar blocks are in contact with the top inner wall of cabinet, and side and cabinet of the bar blocks far from box opening Side inner wall is in contact, and the bar blocks are opened up close to the side of box opening there are three the first groove, in first groove Equipped with test test pencil, and the first groove, far from the second groove is offered on the side inner wall of box opening, the bar blocks are close The side of box opening is fixedly mounted there are three first crossbar, and the first crossbar is fixedly installed with the far from one end of bar blocks One hook, the bar blocks are fixedly mounted close to the side of box opening there are three second crossbar, and the second crossbar is located at pair The lower section for the first crossbar answered, the second crossbar are rotatably equipped with angle-style block far from one end of bar blocks, fix on angle-style block First square plate and the second square plate are installed, the second hook is fixedly mounted in the top of first square plate, and described second hangs Spring is welded on hook, and the top of spring is welded on corresponding first hook, fixation was equipped in the current meter body Flow protector.

Preferably, there are three limit plate, the limit plate positions close to the fixed installation of the side of box opening for the bar blocks In the lower section of corresponding second square plate, the limit plate is adapted with corresponding second square plate.

Preferably, sliding slot is offered in the top inner wall and bottom interior wall of first groove, in first groove Equipped with ring block, the top and bottom of the ring block are fixedly installed with slide bar, one end difference that two slide bars are located remotely from each other It extends in corresponding sliding slot, slide bar is slidably connected with the inner wall of corresponding sliding slot, and the side of the slide bar offers through-hole, institute It states and is slidably fitted with third cross bar in through-hole, the both ends of the third cross bar all extend to outside corresponding through-hole, and third cross bar Both ends be fixedly connected respectively with the two sides inner wall of sliding slot.

Preferably, three angle-style blocks offer rotation slot close to the side of bar blocks, and the second crossbar is far from bar shaped One end of block extends in corresponding rotation slot, and bearing, the inner ring of the bearing and corresponding second are equipped in the rotation slot Cross bar is fixedly connected, and the outer ring of the bearing is fixedly connected with the inner wall of corresponding rotation slot.

Preferably, the model UT33B of the current meter body, the model KJ15L-40 of the overcurrent protector.

Preferably, elastic slice is fixedly installed in the bottom interior wall of the cabinet, the stiffness factor range of three springs is 30N/m to 100N/m.

Compared with prior art, the utility model has the beneficial effects that firstly, the device by current meter body, cabinet, Supporting leg, bar blocks, the first groove, the second groove, first crossbar, the first hook, second crossbar, angle-style block, the first square plate, Second hook, the second square plate, spring, test test pencil and overcurrent protector match, by first pressing the first square plate, first Square plate drives the second hook to move down, and the second hook pulls spring to move down, when the downward pressure of the first square plate is big When the pulling force of spring, spring generates deformation, and the first rectangular strip is moved angle-style block and rotated down, and angle-style block drives the second square plate When angle-style block turns to certain distance, test test pencil is inserted into the first groove for rotation, and test test pencil drives ring block in cunning It is dynamic, when test test pencil is fully inserted in the first groove, test pencil is tested with one end of live wire, cabinet is fastened on by elastic slice It is interior, to complete the protection work of the test test pencil in overcurrent protection ammeter.

The utility model of simple structure and strong practicability extends and uses by protecting to the test test pencil in ammeter Service life manipulates simple and convenient.

Detailed description of the invention

Fig. 1 faces schematic cross-sectional view for the utility model；

Fig. 2 is the installation diagram of bar blocks in the utility model, angle-style block and first crossbar；

Fig. 3 is the side structure schematic view of the utility model；

Fig. 4 is the structural schematic diagram of part A in Fig. 3；

Fig. 5 is the overlooking structure diagram of the utility model；

In figure: 1, current meter body；2, cabinet；3, supporting leg；4, bar blocks；5, the first groove；6, the second groove；7, One cross bar；8, the first hook；9, second crossbar；10, angle-style block；11, the first square plate；12, the second hook；13, second is rectangular Plate；14, spring；15, test pencil is tested；16, overcurrent protector.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of ammeter with overcurrent protection, including Current meter body 1, the bottom of current meter body 1 are fixedly installed with cabinet 2, and the side of cabinet 2 is equipped with opening, the bottom of cabinet 2 Supporting leg 3 there are four being fixedly mounted on inner wall, the top of four supporting legs 3 is fixedly installed with the same bar blocks 4, bar blocks 4 Top be in contact with the top inner wall of cabinet 2, and the side that is open far from cabinet 2 of bar blocks 4 and the side inner wall phase of cabinet 2 Contact, bar blocks 4 are opened up close to the side that cabinet 2 is open there are three the first groove 5, and interior be equipped with of the first groove 5 tests test pencil 15, And first offers the second groove 6 on the side inner wall that is open far from cabinet 2 of groove 5, bar blocks 4 be open close to cabinet 2 one Side is fixedly mounted there are three first crossbar 7, and first crossbar 7 is fixedly installed with the first hook 8, bar shaped far from one end of bar blocks 4 Block 4 is fixedly mounted close to the side that cabinet 2 is open there are three second crossbar 9, and second crossbar 9 is located at corresponding first crossbar 7 Lower section, second crossbar 9 are rotatably equipped with angle-style block 10 far from one end of bar blocks 4, are fixedly installed with first party on angle-style block 10 Shape plate 11 and the second square plate 13, the top of the first square plate 11 are fixedly mounted the second hook 12, are welded on the second hook 12 Spring 14, and the top of spring 14 is welded on corresponding first hook 8, it is fixed in current meter body 1 that overcurrent protector is housed 16；

Bar blocks 4 are fixedly mounted close to the side that cabinet 2 is open there are three limit plate, and limit plate is located at corresponding second party The lower section of shape plate 13, limit plate are adapted with corresponding second square plate 13, in the top inner wall and bottom interior wall of the first groove 5 Sliding slot is offered, is equipped with ring block in the first groove 5, the top and bottom of ring block are fixedly installed with slide bar, two cunnings One end that bar is located remotely from each other extends respectively in corresponding sliding slot, and slide bar is slidably connected with the inner wall of corresponding sliding slot, slide bar Side offers through-hole, and third cross bar is slidably fitted in through-hole, and the both ends of third cross bar all extend to outside corresponding through-hole, and The both ends of third cross bar are fixedly connected with the two sides inner wall of sliding slot respectively, and three angle-style blocks 10 are opened close to the side of bar blocks 4 Equipped with rotation slot, second crossbar 9 extends in corresponding rotation slot far from one end of bar blocks 4, and bearing, axis are equipped in rotation slot The inner ring held is fixedly connected with corresponding second crossbar 9, and the outer ring of bearing is fixedly connected with the inner wall of corresponding rotation slot, electric current The model UT33B of table ontology 1, the model KJ15L-40 of overcurrent protector 16 are fixedly installed in the bottom interior wall of cabinet 2 Elastic slice, the stiffness factor range of three springs 14 are 30N/m to 100N/m, by current meter body 1, cabinet 2, supporting leg 3, Bar blocks 4, the first groove 5, the second groove 6, first crossbar 7, first link up with 8, second crossbar 9, angle-style block 10, the first square plate 11, second the 12, second square plate 13 of hook, spring 14, test test pencil 15 and overcurrent protector 16 match, by first pressing the One square plate 11, the first square plate 11 drive the second hook 12 to move down, and 12 pulling spring 14 of the second hook moves down, when When the downward pressure of first square plate 11 is greater than the pulling force of spring 14, spring 14 generates deformation, and the first square plate 11 drives angle-style Block 10 rotates down, and angle-style block 10 drives the rotation of the second square plate 13, when angle-style block 10 turns to certain distance, will test test pencil In 15 the first grooves 5 of insertion, test test pencil 15 drives ring block sliding, when test test pencil 15 is fully inserted to the first groove 5 When interior, the test one end of test pencil 15 with live wire is fastened in cabinet 2 by elastic slice, to complete in overcurrent protection ammeter Test the protection work of test pencil 15, the utility model of simple structure and strong practicability, by carrying out to the test test pencil in ammeter Protection, prolongs the service life, and manipulates simple and convenient.

Working principle: when detecting electric current, electric current can be through overcurrent protective device 16, the electricity carried more than current meter body 1 Stream can obstruct automatically, after detecting current work, first press the first square plate 11, the first square plate 11 drives the second hook 12 It moves down, 12 pulling spring 14 of the second hook moves down, when the downward pressure of the first square plate 11 is greater than the drawing of spring 14 When power, spring 14 generates deformation, and under second crossbar 9 and the collective effect of rotation slot, the first square plate 11 drives angle-style block 10 It rotates down, angle-style block 10 drives the rotation of the second square plate 13, and when angle-style block 10 turns to certain distance, test test pencil 15 is inserted Enter in the first groove 5, under the collective effect of slide bar and sliding slot, test test pencil 15 drives ring block smoothly sliding, and works as survey When pen 15 of taking temperature is fully inserted in the first groove 5, the one end of test pencil 15 with live wire is tested by elastic slice and is fastened on cabinet 2 It is interior, to complete the protection work of the test test pencil 15 of overcurrent protection ammeter.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of ammeter with overcurrent protection, including current meter body (1), it is characterised in that: the current meter body (1) Bottom be fixedly installed with cabinet (2), the side of the cabinet (2) is equipped with opening, fixed in the bottom interior wall of the cabinet (2) There are four supporting leg (3) for installation, and the top of four supporting legs (3) is fixedly installed with the same bar blocks (4), the bar blocks (4) top is in contact with the top inner wall of cabinet (2), and side and cabinet (2) of the bar blocks (4) far from cabinet (2) opening Side inner wall be in contact, the bar blocks (4) open up close to the side of cabinet (2) opening there are three the first groove (5), described It is equipped with test test pencil (15) in first groove (5), and is offered on side inner wall of the first groove (5) far from cabinet (2) opening Second groove (6), there are three first crossbar (7) close to the side fixed installation of cabinet (2) opening for the bar blocks (4), described First crossbar (7) is fixedly installed with the first hook (8) far from the one end of bar blocks (4), and the bar blocks (4) are close to cabinet (2) The side of opening is fixedly mounted there are three second crossbar (9), and the second crossbar (9) is located under corresponding first crossbar (7) Side, the second crossbar (9) are rotatably equipped with angle-style block (10) far from the one end of bar blocks (4), fixed peace on angle-style block (10) Equipped with the first square plate (11) and the second square plate (13), the second hook is fixedly mounted in the top of first square plate (11) (12), it is welded with spring (14) on second hook (12), and the top of spring (14) is welded on corresponding first hook (8) On, it is fixed in the current meter body (1) that overcurrent protector (16) are housed.

2. a kind of ammeter with overcurrent protection according to claim 1, it is characterised in that: the bar blocks (4) are leaned on The side of nearly cabinet (2) opening is fixedly mounted there are three limit plate, and the limit plate is located at corresponding second square plate (13) Lower section, the limit plate are adapted with corresponding second square plate (13).

3. a kind of ammeter with overcurrent protection according to claim 1, it is characterised in that: first groove (5) Top inner wall and bottom interior wall on offer sliding slot, ring block, the top of the ring block are equipped in first groove (5) Portion and bottom are fixedly installed with slide bar, and one end that two slide bars are located remotely from each other extends respectively in corresponding sliding slot, slide bar with The inner wall of corresponding sliding slot is slidably connected, and the side of the slide bar offers through-hole, and third cross is slidably fitted in the through-hole The both ends of bar, the third cross bar all extend to outside corresponding through-hole, and the both ends of third cross bar are respectively and in the two sides of sliding slot Wall is fixedly connected.

4. a kind of ammeter with overcurrent protection according to claim 1, it is characterised in that: three angle-style blocks (10) are leaned on The side of nearly bar blocks (4) offers rotation slot, and the second crossbar (9) extends to correspondence far from the one end of bar blocks (4) Rotation slot in, bearing is equipped in the rotation slot, the inner ring of the bearing is fixedly connected with corresponding second crossbar (9), institute The outer ring for stating bearing is fixedly connected with the inner wall of corresponding rotation slot.

5. a kind of ammeter with overcurrent protection according to claim 1, it is characterised in that: the current meter body (1) model UT33B, the model KJ15L-40 of the overcurrent protector (16).

6. a kind of ammeter with overcurrent protection according to claim 1, it is characterised in that: the bottom of the cabinet (2) Elastic slice is fixedly installed on portion's inner wall, the stiffness factor range of three springs (14) is 30N/m to 100N/m.