CN214174482U

CN214174482U - Dust-proof multimeter

Info

Publication number: CN214174482U
Application number: CN202022821489.2U
Authority: CN
Inventors: 彭宪奇
Original assignee: Nanjing Chuangjia Communication Power Equipment Co ltd
Current assignee: Nanjing Chuangjia Communication Power Equipment Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-09-10
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a dustproof universal meter, which comprises a box body, wherein telescopic mechanisms are symmetrically fixed at the left end and the right end of the bottom of the box body, a rotary table is installed at the lower end of the right side wall through a rotary shaft, a bidirectional screw rod is installed at the bottom of an inner cavity of the box body through a bearing, the right end of the bidirectional screw rod is rotatably connected with the left end of the rotary table, and screw blocks are symmetrically sleeved at the left end and the right end of the outer wall of the bidirectional screw rod and are sleeved with the screw blocks, when the universal meter body needs to be used, the rotary table is rotated to drive the bidirectional screw rod to rotate, the screw blocks move inwards as the bidirectional screw rod is in threaded connection with the screw blocks, at the moment, a swing rod swings to drive a connecting plate to move upwards, the connecting plate moves upwards to enable the universal meter body to extend out of the inner cavity of the box body, and after the universal meter body is used, the universal meter body can be stored through reverse operation, a cover body is covered with a cover body, so as to be convenient for protecting the universal meter body, the pollution of dust is reduced, and the service life of the multimeter body is prolonged.

Description

Dust-proof multimeter

Technical Field

The utility model relates to an integrated circuit check out test set technical field specifically is a dust-protection type universal meter.

Background

The universal meter is also called as a multi-purpose meter and a three-purpose meter, etc., the most basic tool in the field of electronic testing is also a widely used testing instrument, generally takes voltage, current and resistance measurement as main purposes, and is a multifunctional and multi-range measuring instrument, generally the universal meter can measure direct current, direct current voltage, alternating current voltage, resistance, audio level, etc., some parameters of alternating current, capacitance, inductance, semiconductor, etc., the universal meter is widely used in the detection of integrated circuits, but the existing universal meter still has certain problems, and the specific problems are as follows:

the dust is piled up easily to the universal meter in the tradition, when examining, the dust arouses the detection error easily, and traditional universal meter is inconvenient to be installed when using in addition, appears empting the condition of damage easily when receiving external impact to the stationarity of universal meter has been reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dust-protection type universal meter to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a dustproof multimeter comprises a box body, wherein telescopic mechanisms are symmetrically fixed at the left end and the right end of the bottom of the box body, the lower end of the right side wall of the box body is provided with a turntable through a rotating shaft, the bottom of the inner cavity of the box body is provided with a bidirectional screw rod through a bearing, the right end of the bidirectional screw is rotationally connected with the left end of the turntable, the left end and the right end of the outer wall of the bidirectional screw are symmetrically sleeved with screw blocks, one side of the screw block is hinged with a swing rod, one end of the swing rod, which is far away from the screw block, is provided with a connecting plate, a universal meter body is fixed at the top of the connecting plate, a circuit board is screwed in the inner cavity of the universal meter body, a display screen is arranged on the left side of the front end of the multimeter body, a control button is arranged on the right side of the front end of the multimeter body, the top of box articulates there is the lid, the center department at lid top is provided with the handle, lateral wall all installs cooling fan near the one end of universal meter body about the box.

Preferably, telescopic machanism includes pull ring, arm-tie, positioning spring, splint, rubber slab, movable rod and fixed plate, telescopic machanism's fixed plate is located bottom half both ends about, the center department of fixed plate inner chamber transversely runs through there is the movable rod, splint are all installed to the one end that the movable rod is close to box vertical center line, the one end that the movable rod was kept away from to splint all is provided with the rubber slab, all be provided with positioning spring between splint and the fixed plate, the arm-tie is all installed to the one end that the movable rod was kept away from box vertical center line, the one end that the movable rod was kept away from to the arm-tie all is provided with the pull ring.

Based on above-mentioned technical characteristic, drive the movable rod through hand power pull ring and arm-tie and move to the outside, drive splint and remove when the movable rod removes, positioning spring is compressed this moment, with the splint block at windowsill or other suitable positions, and then make the convenient quick installation of box and dismantlement.

Preferably, the bottom of the screw block is provided with a sliding block, sliding rails are symmetrically arranged at the left end and the right end of the bottom of the inner cavity of the box body, and the sliding block is connected with the sliding rails in a sliding manner.

Based on the technical characteristics, the screw block can be guided to move to a certain extent.

Preferably, the one end that the box right side wall is close to the carousel is provided with reset spring, reset spring keeps away from the one end of box and is provided with the gag lever post, the inner wall equidistant spacing of carousel is provided with the spacing groove that matches each other with the gag lever post.

Based on the technical characteristics, the turntable is convenient to limit, the condition that the turntable rotates is avoided, and the normal work of the device is influenced.

Preferably, the left side wall and the right side wall of the box body are symmetrically provided with dust screens, the dust screens are overlapped with the horizontal central line of the heat dissipation fan, four corners of each dust screen are provided with clamping blocks, and the left side wall and the right side wall of the box body are provided with clamping grooves matched with the clamping blocks.

Based on above-mentioned technical characteristics, the setting of dust screen can reduce the inner chamber that the dust got into the box, simultaneously through taking out the fixture block from the inner chamber of draw-in groove, conveniently dismantle and wash the dust screen regularly.

Preferably, the right-hand member of lid bottom is provided with reserves the piece, the right-hand member at box top is provided with the reservation groove of reserving the piece and mutually matching, and the junction of lid and box is provided with the sealing washer.

Based on the technical characteristics, the cover body is more sealed when being connected with the box body, and the universal meter body is protected more effectively.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) when the universal meter body needs to be used, the rotary table is rotated, the rotary table rotates to drive the two-way screw to rotate, the two-way screw is in threaded connection with the screw block, so that when the two-way screw rotates, the screw block moves towards the inner side, the swing rod swings at the moment to drive the connecting plate to move upwards, the connecting plate moves upwards to enable the universal meter body to extend out of the inner cavity of the box body, after the universal meter body is used, reverse operation is performed, the universal meter body can be stored, the cover body is covered, the universal meter body is protected conveniently, dust pollution is reduced, and therefore the service life of the universal meter body is prolonged;

(2) drive the movable rod through hand-pulling pull ring and arm-tie and move to the outside, the movable rod drives splint and removes when removing, positioning spring is compressed this moment, with splint block at windowsill or other suitable positions, the pull ring is loosened, positioning spring's elastic action makes splint and windowsill fastening laminating, the rubber slab is direct and the windowsill contact, be convenient for protect the centre gripping department, the condition of pressing from both sides the injury avoids appearing, and then make the convenient quick installation of box and dismantlement, the steadiness of universal meter body during operation has been improved, avoid exogenic action to touch it and damage.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic sectional view of the present invention;

fig. 2 is a schematic diagram of the right-side view structure of the present invention;

FIG. 3 is a schematic view of the front view structure of the universal meter body of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1. a box body; 2. a clamping block; 3. a dust screen; 4. a heat radiation fan; 5. a card slot; 6. a swing rod; 7. A bidirectional screw; 8. a slider; 9. a telescoping mechanism; 901. a pull ring; 902. pulling a plate; 903. a positioning spring; 904. a splint; 905. a rubber plate; 906. a movable rod; 907. a fixing plate; 10. a slide rail; 11. a screw block; 12. a turntable; 13. reserving a groove; 14. reserving a block; 15. a connecting plate; 16. a circuit board; 17. a multimeter body; 18. a cover body; 19. a display screen; 20. a control button; 21. a return spring; 22. a limiting rod; 23. a limiting groove; 24. a handle.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a dust-proof multimeter comprises a case 1, wherein telescopic mechanisms 9 are symmetrically fixed at the left end and the right end of the bottom of the case 1, each telescopic mechanism 9 comprises a pull ring 901, a pull plate 902, a positioning spring 903, a clamp plate 904, a rubber plate 905, a movable rod 906 and a fixed plate 907, the fixed plates 907 of the telescopic mechanisms 9 are positioned at the left end and the right end of the bottom of the case 1, the movable rods 906 transversely penetrate through the centers of the inner cavities of the fixed plates 907, the clamp plates 904 are respectively installed at one ends of the movable rods 906 close to the vertical central line of the case 1, the rubber plates 905 are respectively arranged at one ends of the clamp plates 904 far away from the movable rods 906, the positioning springs 903 are respectively arranged between the clamp plates 904 and the fixed plates 907, the pull plates 902 are respectively installed at one ends of the movable rods 906 far away from the vertical central line of the case 1, the pull rings 901 are respectively arranged at one ends of the pull plates 902 far away from the movable rods 906, a turntable 12 is installed at the lower end of the right side wall of the case 1 through a rotating shaft, a return spring 21 is arranged at one end of the right side wall of the case 1 close to the turntable 12, a limit rod 22 is arranged at one end of a reset spring 21 far away from a box body 1, limit grooves 23 matched with the limit rod 22 are arranged on the inner wall of a rotary disc 12 at equal intervals, a bidirectional screw 7 is arranged at the bottom of an inner cavity of the box body 1 through a bearing, the right end of the bidirectional screw 7 is rotatably connected with the left end of the rotary disc 12, screw blocks 11 are symmetrically sleeved at the left end and the right end of the outer wall of the bidirectional screw 7, a slide block 8 is arranged at the bottom of the screw block 11, slide rails 10 are symmetrically arranged at the left end and the right end of the bottom of the inner cavity of the box body 1, the slide block 8 is slidably connected with the slide rails 10, swing rods 6 are hinged on one sides of the screw blocks 11, a connecting plate 15 is arranged at one end of the swing rods 6 far away from the screw blocks 11, a universal meter body 17 is fixed at the top of the connecting plate 15, a circuit board 16 is screwed in the inner cavity of the universal meter body 17, a display screen 19 is arranged on the left side of the front end of the universal meter body 17, and a control button 20 is arranged on the right side of the front end of the universal meter body 17, the top of box 1 articulates there is lid 18, the right-hand member of lid 18 bottom is provided with reserves piece 14, the right-hand member at box 1 top is provided with the preformed groove 13 with reserving piece 14 mutual matching, and lid 18 is provided with the sealing washer with the junction of box 1, the center department at lid 18 top is provided with handle 24, lateral wall all installs radiator fan 4 near the one end of universal meter body 17 about box 1, lateral wall symmetry is provided with dust screen 3 about box 1, and the horizontal central line of dust screen 3 and radiator fan 4 coincides each other, four corners of dust screen 3 all are provided with fixture block 2, lateral wall all is provided with the draw-in groove 5 with fixture block 2 mutual matching about box 1.

The working principle is as follows: when the universal meter is used, the box body 1 is moved to a proper position, firstly, the pull ring 901 is pulled by hand to drive the movable rod 906 to move outwards through the pull plate 902, the movable rod 906 drives the clamp plates 904 to move when moving, at the moment, the positioning springs 903 are compressed, a certain distance is reserved between the two clamp plates 904, then the clamp plates 904 are clamped at a windowsill or other proper positions, the pull ring 901 is loosened, the clamp plates 904 are tightly attached to the windowsill or other clamping positions under the action of the elastic force of the positioning springs 903, the rubber plates 905 are directly contacted with the windowsill or the clamping positions to protect the clamping positions and avoid the situation of clamping injury, further, the box body 1 is conveniently and quickly installed and detached, the stability of the universal meter body 17 during working is improved, the universal meter body is prevented from being touched and damaged by the action of external power, an external power supply is connected, then the handle 24 is held by hand to rotate the cover body 18 to the left, so that the reserved block 14 is separated from the inner cavity of the reserved groove 13, conveniently open the cover body 18, then press the reset spring 21 leftwards, the reset spring 21 contracts to drive the limiting rod 22 to move leftwards to separate from the inner cavity of the limiting groove 23, the limiting effect on the rotary table 12 is removed, at the moment, the rotary table 12 manually rotates the rotary table 12, the rotary table 12 drives the two-way screw 7 to rotate through the rotary shaft, because the two-way screw 7 is in threaded connection with the screw block 11, when the two-way screw 7 rotates, the screw block 11 moves inwards, at the moment, the swing rod 6 swings to drive the connecting plate 15 to move upwards, the connecting plate 15 moves upwards to enable the universal meter body 17 to extend out of the inner cavity of the case body 1, the universal meter body 17 is convenient for a worker to use, after the universal meter body 17 is used, the reverse operation can be realized, the universal meter body 17 can be stored, the cover body 18 is covered, the reserved block 14 is clamped in the inner cavity of the reserved groove 13, the universal meter body 17 is convenient to protect, the pollution of dust is reduced, and the service life of the universal meter body 17 is prolonged, simultaneously start through cooling fan 4 and carry out ventilation cooling to 1 inner chamber of box, avoid universal meter body 17 to use for a long time and produce the uniform temperature to the condition of ageing appears, and then prolonged universal meter body 17's life effectively.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. The utility model provides a dust-protection type universal meter, includes box (1), its characterized in that: the universal meter is characterized in that telescopic mechanisms (9) are symmetrically fixed at the left end and the right end of the bottom of the box body (1), a rotary table (12) is installed at the lower end of the right side wall of the box body (1) through a rotary shaft, a bidirectional screw (7) is installed at the bottom of an inner cavity of the box body (1) through a bearing, the right end of the bidirectional screw (7) is rotatably connected with the left end of the rotary table (12), screw blocks (11) are symmetrically sleeved at the left end and the right end of the outer wall of the bidirectional screw (7), swing rods (6) are hinged to one sides of the screw blocks (11), a connecting plate (15) is installed at one end, away from the screw blocks (11), of the swing rods (6), a universal meter body (17) is fixed at the top of the connecting plate (15), a circuit board (16) is screwed in the inner cavity of the universal meter body (17), a display screen (19) is arranged on the left side of the front end of the universal meter body (17), a control button (20) is arranged on the right side of the front end of the universal meter body (17), the top of box (1) articulates there is lid (18), the center department at lid (18) top is provided with handle (24), radiator fan (4) are all installed to the one end that the lateral wall is close to universal meter body (17) about box (1).

2. The dust-protected multimeter of claim 1, wherein: the telescopic mechanism (9) comprises a pull ring (901), a pull plate (902), a positioning spring (903), a clamping plate (904), a rubber plate (905), a movable rod (906) and a fixed plate (907), the fixing plates (907) of the telescopic mechanism (9) are positioned at the left end and the right end of the bottom of the box body (1), a movable rod (906) transversely penetrates through the center of the inner cavity of the fixed plate (907), one end of the movable rod (906) close to the vertical center line of the box body (1) is provided with a clamping plate (904), one end of the clamping plate (904) far away from the movable rod (906) is provided with a rubber plate (905), a positioning spring (903) is arranged between the clamping plate (904) and the fixing plate (907), one end of the movable rod (906) far away from the vertical central line of the box body (1) is provided with a pulling plate (902), and pull rings (901) are arranged at one ends of the pull plates (902) far away from the movable rods (906).

3. The dust-protected multimeter of claim 1, wherein: the bottom of the screw block (11) is provided with a sliding block (8), the left end and the right end of the bottom of the inner cavity of the box body (1) are symmetrically provided with sliding rails (10), and the sliding block (8) is in sliding connection with the sliding rails (10).

4. The dust-protected multimeter of claim 1, wherein: the one end that box (1) right side wall is close to carousel (12) is provided with reset spring (21), the one end that box (1) were kept away from in reset spring (21) is provided with gag lever post (22), the inner wall equidistant spacing of carousel (12) is provided with spacing groove (23) that matches each other with gag lever post (22).

5. The dust-protected multimeter of claim 1, wherein: the side wall symmetry about box (1) is provided with dust screen (3), and the horizontal central line of dust screen (3) and cooling fan (4) coincides each other, four corners of dust screen (3) all are provided with fixture block (2), the side wall all is provided with draw-in groove (5) of matcing each other with fixture block (2) about box (1).

6. The dust-protected multimeter of claim 1, wherein: the right-hand member of lid (18) bottom is provided with reserves piece (14), the right-hand member at box (1) top is provided with reserve groove (13) with reserving piece (14) and mutually match, and the junction of lid (18) and box (1) is provided with the sealing washer.