CN216668993U

CN216668993U - Noise vibration testing device

Info

Publication number: CN216668993U
Application number: CN202123391574.0U
Authority: CN
Inventors: 王倩
Original assignee: Jilin Jiuxin Oriental Technology Co ltd
Current assignee: Jilin Jiuxin Oriental Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-03
Anticipated expiration: 2031-12-30

Abstract

The utility model provides a noise vibration testing arrangement relates to noise detection appearance technical field, has solved the problem that current noise analysis appearance dust cover easily loses, include: the instrument comprises an instrument main body, an earplug box and a lighting device, wherein the earplug box is fixedly connected with the instrument main body, an earplug mounting groove is formed in the box, and the size of the earplug mounting groove is smaller than that of a sponge earplug; the dust cover includes left base plate, left side slide, right base plate and right slide, the equal sliding connection instrument main part shell of left base plate and right base plate, left side slide sliding connection left base plate, left side base plate can drive left slide and slide between instrument main part shell openly and the left surface, right side slide sliding connection right base plate, right side base plate can drive right slide and slide between instrument main part shell openly and the right surface, left side base plate, left side slide, right side base plate and right slide can be located instrument main part shell openly top simultaneously and shelter from the dust for display screen and button. The earplug box is simple in structure, the dust cover can protect the display screen and the keys, and the dust cover does not need to be separated from the instrument main body when not used.

Description

Noise vibration testing device

Technical Field

The utility model relates to the technical field of noise detectors, in particular to a noise vibration testing device.

Background

The noise vibration testing device is a handheld noise vibration testing device, and also a box type noise vibration testing device. The handheld noise detector is convenient to use and carry.

For the construction sites such as mines, a portable multifunctional vibration noise test analyzer for instrument calibration, which is described in patent CN202022231196.9, is generally used for noise detection, and has the advantages of illumination, ear plugs, falling prevention, and the like. However, when the noise analyzer is not used, dust is easily accumulated after long-term storage, so that the pressing of the keys is influenced, and meanwhile, a display screen on the noise analyzer is lack of a protection device, so that the display screen is easily damaged due to collision; the structure of the earplug placing device on the analyzer is complex; patent CN201922046394.5 provides a noise analysis appearance with protector can know, and this analysis appearance can prevent that the dust from adsorbing on noise vibration testing arrangement, can prevent simultaneously that the display screen from receiving the striking and damaging, but when using the analysis appearance test, need dismantle the dust cover and place alone, not only places the dust cover specially troublesome also can cause the problem that can not find of losing of dust cover.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a noise vibration test apparatus.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

a noise vibration testing device comprises an instrument main body, an earplug box arranged at the bottom of the instrument main body and a lighting device arranged at the back of an instrument main body shell, wherein the earplug box is arranged at the bottom of the instrument main body shell and is fixedly connected with the instrument main body; be equipped with the dust cover that is used for protecting instrument main part display screen and instrument main part button in the instrument main part, the dust cover includes left base plate, left side slide, right side base plate and right slide, left side base plate and the equal sliding connection instrument main part shell of right base plate, left side slide sliding connection left side base plate just can slide to the front of left base plate directly over, left side base plate can drive left slide and make a round trip to slide between instrument main part shell front and instrument main part shell left side, right side slide sliding connection right side base plate just can slide to the front of right base plate directly over, right side base plate can drive right slide and make a round trip to slide between instrument main part shell front and instrument main part shell right side, left side base plate, left side slide, right side base plate and right slide can be located instrument main part shell simultaneously and make a round trip to slide for display screen and button shelter from the dust.

Further, the volume of the sponge earplug positioned in the earplug installation groove is greater than 1/2 of the total volume of the sponge earplug.

Further, the widths of the left base plate, the left sliding plate, the right base plate and the right sliding plate are all smaller than the thickness of the instrument main body; when the left base plate, the left sliding plate, the right base plate and the right sliding plate shield dust for the display screen and the keys, the left base plate and the right base plate have an overlapping area.

Furthermore, a sliding groove is formed in the instrument main body shell, a left sliding groove and a right sliding groove are formed in the instrument main body shell, the left sliding groove is located on the front face and the left face of the instrument main body shell, and the right sliding groove is located on the front face and the right face of the instrument main body shell; the back of the left substrate is provided with a first bump corresponding to the left sliding chute, the first bump is arranged in the left sliding chute and is connected with the left sliding chute in a sliding manner, the back of the right substrate is provided with a second bump corresponding to the right sliding chute, and the second bump is arranged in the right sliding chute and is connected with the right sliding chute in a sliding manner; the front surface of the left base plate is provided with a first slide way, the front surface of the right base plate is provided with a second slide way, the first slide way and the second slide way are arranged along the left-right direction, the back surface of the left sliding plate is provided with a first slide block corresponding to the first slide way, the left sliding plate is connected with the first slide way in a sliding mode through the first slide block, the back surface of the right sliding plate is provided with a second slide block corresponding to the second slide way, and the right sliding plate is connected with the second slide way in a sliding mode through the second slide block; when left base plate, left slide, right base plate and right slide all are located instrument main part openly top, first slider are located the rightmost side of first slide and the second slider is located the leftmost side of second slide, and right base plate left side edge is located left base plate top or left base plate right side edge is located right base plate top.

Further, when the left base plate and the left sliding plate are positioned on the left side of the instrument main body, the left sliding plate is positioned on the right left side of the left base plate; when the left base plate and the left sliding plate are positioned on the right side of the instrument main body, the right sliding plate is positioned right side of the right base plate.

Furthermore, the number of the left sliding chutes and the number of the right sliding chutes are two, one left sliding chute is positioned on the top sides of the display screen and the keys, the other left sliding chute is positioned on the bottom sides of the display screen and the keys, one right sliding chute is positioned on the top sides of the display screen and the keys, and the other right sliding chute is positioned on the bottom sides of the display screen and the keys; the quantity of first lug and second lug is two, and two left spouts and two first lugs one-to-one set up, and two right spouts and two second lugs one-to-one set up.

Furthermore, a first half buckle body and a third half buckle body are arranged on the back of the instrument main body shell, a first second half buckle body is arranged on the left of the instrument main body shell, a second half buckle body is arranged on the front of the left sliding plate, the first second half buckle body and the second half buckle body are identical in structure and can be buckled with the first half buckle body, when the left sliding plate is positioned on the left side of the left of the instrument main body shell, the first half buckle body can be buckled with the second half buckle body, the left sliding plate can be fixed through the limiting of the first slide way and the buckling of the first half buckle body and the second half buckle body, and when the left base plate and the left sliding plate are positioned above the front of the instrument main body shell, the first half buckle body can be buckled with the first second half buckle body; instrument main part shell right side is equipped with the fourth and partly detains body one, be equipped with the fourth on the right slide openly and partly detain body two, the fourth is partly detained body one and the fourth is partly detained body two structures the same, homoenergetic and third are partly detained body lock, when right slide is located instrument main part shell right side, the third is partly detained the body and can be detained body two locks with the fourth, spacing through the second slide, and the third is partly detained the body and the fourth is partly detained the lock of body two and can fix the right slide, when right base plate and right slide are located instrument main part shell openly top, the third is partly detained the body and can be detained body lock with the fourth is partly.

Furthermore, the first half-buckling body is connected with the back of the instrument main body shell through a first connecting belt, and the third half-buckling body is connected with the back of the instrument main body shell through a second connecting belt.

Furthermore, the front surface of the left substrate is provided with a fifth half-buckling body, the front surface of the right substrate is provided with a sixth half-buckling body, the sixth half-buckling body is arranged corresponding to the fifth half-buckling body, and when the left edge of the right substrate is positioned above the left substrate or the right edge of the left substrate is positioned above the right substrate, the fifth half-buckling body can be buckled on the sixth half-buckling body.

Furthermore, the fifth half buckle body is connected with the left base plate through a third connecting belt.

The utility model has the beneficial effects that:

according to the noise vibration testing device, the function diversity of the noise vibration testing device is ensured through the illuminating device and the earplug box, the earplug box is not required to be provided with a sponge pad, and the structure of the earplug box is simplified while sponge earplugs can be fixed through the earplug mounting groove which is slightly smaller than the sponge earplugs; the existing earplug box is connected with the instrument main body without influencing the use of the instrument main body, and the earplug box is fixedly connected with the instrument main body, so that the structure of the earplug box is simplified. Through setting up the dust cover, when not using noise analysis appearance, can prevent that the dust from adsorbing on noise vibration testing arrangement, can prevent simultaneously that the display screen from receiving the striking and damaging, also do not influence noise vibration testing arrangement's use. When using a noise vibration testing arrangement, this dust cover need not to dismantle and places alone, still on the instrument main part, has avoided specifically placing the dust cover when having avoided testing, has just also avoided losing of dust cover simultaneously. Meanwhile, the dust cover is convenient to open and close and easy to understand.

Drawings

Fig. 1 is a front view of a noise vibration testing apparatus of the present invention.

Fig. 2 is a rear view of a noise vibration testing apparatus of the present invention.

Fig. 3 is a schematic view of a chute structure of the noise vibration testing apparatus of the present invention.

Fig. 4 is a structural diagram of a left substrate of the noise vibration testing apparatus according to the present invention.

Fig. 5 is a structural view of a left slide plate of a noise vibration testing apparatus according to the present invention.

Fig. 6 is a middle state view of the noise vibration test apparatus according to the present invention when the dust cover is opened.

In the figure: 1. the earphone comprises an instrument main body shell, 2, an earphone box, 2.1, a cover body, 3, a lighting device, 4, an earphone mounting groove, 5.1, a left sliding groove, 5.2, a right sliding groove, 6, a left base plate, 6.1, a first bump, 6.2, a first sliding way, 7, a left sliding plate, 7.1, a first sliding block, 8, a right base plate, 8.1, a second bump, 8.2, a second sliding way, 9, a right sliding plate, 10, a first half buckle body, 11, a first half buckle body, 12, a second half buckle body, 13, a third half buckle body, 14, a first half buckle body, 15, a second half buckle body, 16, a third connecting band, 17, a sixth half buckle body, 18, a first connecting band, 19 and a second connecting band.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

A noise vibration testing device comprises an instrument body, an earplug box 2 arranged at the bottom of an instrument body shell 1, an illuminating device 3 arranged at the back of the instrument body shell 1 and a dust cover arranged on the instrument body shell 1.

The earplug box 2 is disposed at the bottom of the instrument body casing 1, as shown in fig. 1 and 2, the earplug box 2 is fixedly connected to the instrument body casing 1, and may be an integral structure. The lid 2.1 of earplug box 2 is located 2 backs of earplug box (the back is the lower surface), and 2 backs of 2 articulated earplug boxes of lid 2.1 are equipped with earplug mounting groove 4 in the earplug box 2, are equipped with the sponge earplug in earplug mounting groove 4, and the size of earplug mounting groove 4 slightly is less than the sponge earplug size, and the sponge earplug that is in extrusion compression state can just place earplug mounting groove 4, is also to be located the earplug of sponge earplug for being in the extrusion state in earplug mounting groove 4. When the noise is too loud, the cover body 2.1 can be opened, the sponge earplugs are further squeezed, the sponge earplugs are taken out from the earplug mounting groove 4, when the sponge earplugs are not used, the sponge earplugs are slightly squeezed and placed in the earplug mounting groove 4, and the cover body 2.1 is well covered.

At least two earplugs are arranged in the earplug box 2, two earplug installation grooves 4 are usually arranged, each earplug installation groove 4 can be used for placing one earplug, and the two earplug installation grooves 4 can be communicated. For each sponge earplug placed in the earplug mounting groove 4, the volume thereof in the earplug mounting groove 4 is greater than 1/2 of the total volume thereof.

The front (upper surface) of the instrument main body is provided with a display screen and keys, and the instrument main body shell 1 is provided with a dust cover for protecting the display screen and the keys. The dust cover can slide to the left and right of the instrument body. The dust cover comprises a left base plate 6, a left sliding plate 7, a right base plate 8 and a right sliding plate 9, the left base plate 6 is connected with the instrument main body casing 1 in a sliding way and can slide back and forth between the front surface of the instrument main body casing 1 and the left surface (left side surface) of the instrument main body casing 1, the left sliding plate 7 is connected with the left base plate 6 in a sliding way, the left sliding plate 7 can slide to the right side of the left base plate 6, the right base plate 8 is connected with the instrument main body casing 1 in a sliding way and can slide back and forth between the front surface of the instrument main body casing 1 and the right surface (right side surface) of the instrument main body casing 1, the right sliding plate 9 is connected with the right base plate 8 in a sliding way, the right sliding plate 9 can slide to the right side of the right base plate 8, the left base plate 6 and the left sliding plate 7 can be positioned at the left side of the instrument main body casing 1 and can be positioned at the upper side of the front surface of the instrument main body casing 1 at the same time, the right base plate 8 and the right sliding plate 9 can be positioned at the upper side of the front of the instrument main body casing 1 at the same time, left base plate 6, left side slide 7, right base plate 8 and right slide 9 can be located instrument main body shell 1 simultaneously openly (also be positive top), when left base plate 6, left side slide 7, right base plate 8 and right slide 9 are located instrument main body shell 1 simultaneously and openly the upside, left base plate 6 and right base plate 8 can have the overlapping, right base plate 8 the left side is located left base plate 6 top or left base plate 6 the right edge is located right base plate 8 top promptly, left base plate 6, left side slide 7, right base plate 8 and right slide 9 shelter from the dust for display screen and button jointly.

When the left base plate 6 and the left slide plate 7 are positioned on the left side of the instrument main body, the left slide plate 7 is positioned right to the left of the left base plate 6; when the left base plate 6 and the left slide plate 7 are positioned on the right side of the instrument main body, the right slide plate 9 is positioned right to the right of the right base plate 8. The widths of the left base plate 6, the left slide plate 7, the right base plate 8 and the right slide plate 9 are all smaller than the thickness of the instrument body. That is, the left base plate 6, the left slide plate 7, the right base plate 8, and the right slide plate 9 are positioned at the side of the instrument main body without protruding the left base plate 6, the left slide plate 7, the right base plate 8, and the right slide plate 9 from the instrument main body.

One embodiment of the dust cover structure is described in detail below:

the instrument main body casing 1 is provided with a left slide groove 5.1 and a right slide groove 5.2, as shown in fig. 3, and fig. 3 does not show a left base plate 6, a left slide plate 7, a right base plate 8 and a right slide plate 9. The left sliding grooves 5.1 are arranged on the front side of the instrument main body shell 1 and the left side of the instrument main body shell 1, the right sliding grooves 5.2 are arranged on the front side of the instrument main body shell 1 and the right side of the instrument main body shell 1, the left sliding grooves 5.1 and the right sliding grooves 5.2 are both provided with two grooves, one left sliding groove 5.1 is positioned on the top sides of the display screen and the keys, the other left sliding groove 5.1 is positioned on the bottom sides of the display screen and the keys, and each left sliding groove 5.1 is positioned on the front side of the instrument main body shell 1 and the left side of the instrument main body shell 1 at the same time; one right runner 5.2 is located on the top side of the display screen and the keys, the other right runner 5.2 is located on the bottom side of the display screen and the keys, and each right runner 5.2 is located on both the front side of the instrument body housing 1 and the right side of the instrument body housing 1. That is, for any left sliding chute 5.1, the part of the left sliding chute 5.1 positioned on the front surface of the instrument main body shell 1 is communicated with the part of the left sliding chute 5.1 positioned on the left surface of the instrument main body shell 1; for any right slide groove 5.2, a portion of the right slide groove 5.2 thereof on the front surface of the instrument main body casing 1 communicates with a portion of the right slide groove 5.2 thereof on the right side surface of the instrument main body casing 1.

The back of the left substrate 6 is provided with two first bumps 6.1 corresponding to the two left chutes 5.1, the two first bumps 6.1 are located at the top and the bottom respectively, the left chute 5.1 corresponds to the first bump 6.1, the first bump 6.1 is located in the left chute 5.1, the first bump 6.1 is connected with the left chute 5.1 in a sliding manner, the left substrate 6 is connected with the instrument main body shell 1 through the first bump 6.1 and the left chute 5.1, the first bump 6.1 is installed in the left chute 5.1, can not fall off from the left chute 5.1, and can slide along the left chute 5.1. One end (left lower end) of the left sliding groove 5.1 is used as the lower limit of the left substrate 6, the other end (right upper end) is used as the right limit of the left substrate 6, and the left substrate 6 can slide to the left side of the instrument main body shell 1 and also can slide to the right upper side of the front surface of the instrument main body shell 1 through the first convex block 6.1 and the left sliding groove 5.1. Preferably, when the first projection 6.1 is located at the upper right end of the left sliding groove 5.1, the left edge of the left substrate 6 can coincide with the left edge of the front surface of the instrument main body casing 1 through the limit of the upper right end of the left sliding groove 5.1. Preferably, when the first protrusion 6.1 is located at the left lower end of the left sliding groove 5.1, the position where the left base plate 6 can reach the lowest side is located right on the left side of the left surface of the instrument main body casing 1 by the limit of the left lower end of the left sliding groove 5.1. The front of left base plate 6 is equipped with first slide 6.2, and first slide 6.2 is totally two, and one is located the front top of left base plate 6 and another is located the front bottom of left base plate 6, and the length direction of first slide 6.2 is left right direction, and the back of left slide 7 corresponds first slide 6.2 and is equipped with first slider 7.1, first slider 7.1 sliding connection first slide 6.2, and left slide 7 is through first slider 7.1 and first slide 6.2 sliding connection left base plate 6. The left end of the first slide 6.2 is the left limit of the first slide 7.1, and the right end is the right limit of the first slide 7.1. Through first slide 6.2 and first slider 7.1, left slide 7 can slide to right above the front of left base plate 6, also can slide to the upper right side on the front of left base plate 6. The structure of the left base plate 6 is shown in fig. 4, the structure of the back surface of the left base plate 6 is shown on the left side of fig. 4, the structure of the front surface of the left base plate 6 is shown on the right side, and the structure of the back surface of the left slide plate 7 is shown in fig. 5. Through first lug 6.1, left base plate 6 can drive left slide 7 and make a round trip to slide between instrument main part shell 1 openly and instrument main part shell 1 left side.

The back of the instrument main body shell 1 is provided with a first half-buckle body 10, and the first half-buckle body 10 is positioned on the left half side of the back of the instrument main body shell 1, can be positioned on the left half side of the back of the lighting device 3, and can also be positioned on the left half side of the back of the instrument main body shell 1. Specifically, the first half buckle 10 is connected to the back of the instrument main body housing 1 or the back of the lighting device 3 through the first connecting belt 18, for example, the first half buckle 10 is connected to the back of the instrument main body housing 1 through the first connecting belt 18, and one end of the first connecting belt 18 is provided with the first half buckle 10 and the other end is connected to the back of the instrument main body housing 1. The left side of the instrument main body shell 1 is provided with a first half buckle body 11, the front side of the left sliding plate 7 is provided with a second half buckle body 12, the first half buckle body 11 and the second half buckle body 12 have the same structure and can be buckled with the first half buckle body 10, the first half buckle body 11 and the second half buckle body 12 are arranged corresponding to the first half buckle body 10, when the left sliding plate 7 is positioned on the left side of the instrument main body shell 1, the first half buckle body 10 can be buckled with the second half buckle body 12, and the left sliding plate 7 can be fixed through the left limiting of the first slide 6.2 and the buckling of the first half buckle body 10 and the second half buckle body 12; when the left base plate 6 and the left sliding plate 7 are positioned on the upper side of the front surface of the instrument main body shell 1, namely, when the display screen and the keys are shielded, the first half buckling body 10 can be buckled with the second half buckling body 11.

The right base plate 8 is located on the right side of the left base plate 6. The 8 back of right base plate corresponds two right spouts 5.2 and is equipped with two second lugs 8.1, and two second lugs 8.1 are located the top another and are located the bottom, and a right spout 5.2 corresponds a second lug 8.1, and second lug 8.1 is located right spout 5.2, and second lug 8.1 sliding connection right spout 5.2, and right base plate 8 passes through second lug 8.1 and right spout 5.2 is connected on instrument main body shell 1. One end (right lower end) of right spout 5.2 is spacing as the lower limit of right base plate 8, and the other end (left upper end) is spacing as the left of right base plate 8, through second lug 8.1 and right spout 5.2, and right base plate 8 can slide to instrument main body housing 1 right side also can slide to the positive upside of instrument main body housing 1. Preferably, when the second bump 8.1 is located at the upper left end of the right chute 5.2, the right edge of the right substrate 8 can coincide with the right edge of the front surface of the instrument main body casing 1 through the limitation of the upper left end of the right chute 5.2. Preferably, when the second protrusion 8.1 is located at the right lower end of the right sliding groove 5.2, the right base plate 8 can reach the lowest position by limiting the right lower end of the right sliding groove 5.2, and is located right on the right side of the instrument main body casing 1. Right base plate 8 openly is equipped with second slide 8.2, and second slide 8.2 is totally two, and one is located right base plate 8 openly top another and is located right base plate 8 openly bottom, and the length direction of second slide 8.2 is left right direction, and the right slide 9 back corresponds second slide 8.2 and is equipped with the second slider, second slider sliding connection second slide 8.2, and right slide 9 passes through second slider and second slide 8.2 sliding connection right base plate 8. The right end of the second slide way 8.2 is the right limit of the second slide block, and the left end is the left limit of the second slide block. Through second slide 8.2 and second slider, right slide 9 can slide to right base plate 8 directly over the front, also can slide to the positive upper left side of right base plate 8. The second cam 8.1 is mounted in the right sliding groove 5.2, and can not fall off from the right sliding groove 5.2, and can slide along the right sliding groove 5.2. Through second lug 8.1, right base plate 8 can drive right slide 9 and make a round trip to slide between instrument main part shell 1 openly and instrument main part shell 1 right side.

The back of the instrument main body shell 1 is provided with a third half buckle body 13, and the third half buckle body 13 is positioned on the right half side of the back of the instrument main body shell 1, can be positioned on the right half side of the back of the lighting device 3, and can also be positioned on the right half side of the back of the instrument main body shell 1. Specifically, the third half-button 13 is connected to the back of the instrument main body housing 1 or the back of the lighting device 3 through a second connecting band 19, for example, the third half-button 13 is connected to the back of the instrument main body housing 1 through a second connecting band 19, one end of the second connecting band 19 is provided with the third half-button 13, and the other end is connected to the back of the instrument main body housing 1. A first fourth half buckle 14 is arranged on the right side of the instrument main body shell 1, a second fourth half buckle 15 is arranged on the front side of the right sliding plate 9, the first fourth half buckle 14 and the second fourth half buckle 15 are identical in structure and can be buckled with the third half buckle 13, the first fourth half buckle 14 and the second fourth half buckle 15 are arranged corresponding to the third half buckle 13, when the right sliding plate 9 is positioned on the right side of the instrument main body shell 1, the third half buckle 13 can be buckled with the second fourth half buckle 15, and the right sliding plate 9 can be fixed through the right limit of the second slide way 8.2 and the buckling of the first third half buckle 13 and the second fourth half buckle 15; when the right base plate 8 and the right sliding plate 9 are positioned on the upper side of the front surface of the instrument main body shell 1, namely, when the instrument main body shell is used for shielding a display screen and keys, the third half buckling body 13 can be buckled with the fourth half buckling body I14.

The front of the left substrate 6 is provided with a fifth half buckle body, the front of the right substrate 8 is provided with a sixth half buckle body 17, the fifth half buckle body can be buckled on the sixth half buckle body 17, the fifth half buckle body can be connected with the left substrate 6 through a third connecting belt 16, one end of the third connecting belt 16 is connected with the other end of the left substrate 6 and is connected with the fifth half buckle body, when the left substrate 6, the left sliding plate 7, the right substrate 8 and the right sliding plate 9 are simultaneously positioned on the front upside of the instrument main body shell 1, and when the left edge of the right substrate 8 is positioned on the left substrate 6 or the right edge of the left substrate 6 is positioned on the right substrate 8, the fifth half buckle body is buckled on the sixth half buckle body 17 to ensure that dust does not fall into the display screen and the keys.

When left base plate 6, left slide 7, right base plate 8 and right slide 9 can be located instrument main body shell 1 simultaneously and openly the upside, first slider 7.1 is located the rightmost side of first slide 6.2 and the second slider is located the leftmost side of second slide 8.2, left base plate 6 and right base plate 8 have the overlap, right base plate 8 left side edge is located left base plate 6 or left base plate 6 right edge is located right base plate 8, so that there is not the space left slide 7 and right slide 9, guarantee promptly for display screen and button dustproof.

The using method comprises the following steps: when the noise vibration testing device is placed in a non-use state, as shown in fig. 1, the dust cover shields dust for the display screen and the keys, that is, at this time, the left base plate 6, the left sliding plate 7, the right base plate 8 and the right sliding plate 9 can be simultaneously positioned above the front surface of the instrument main body shell 1, the left base plate 6 and the right base plate 8 have an overlapping area, the fifth half buckle body and the sixth half buckle body 17 are buckled, and at this time, the first half buckle body 10 can also buckle the second half buckle body 11, and the third half buckle body 13 can also buckle the fourth half buckle body 14. When the noise vibration testing device of the utility model is used for testing noise in mines, the illuminating lamp is switched on and off according to requirements, the cover body 2.1 of the earplug box 2 can be opened, the sponge earplugs are taken out, the cover body 2.1 is covered, the sponge earplugs are worn, the buckling of the first half buckling body 10 and the first second half buckling body 11 is released manually, the buckling of the first half buckling body 13 and the first fourth half buckling body 14 is released, and the buckling of the fifth half buckling body and the sixth half buckling body 17 is released, as shown in figure 6, the left sliding plate 7 slides to the position right above the left base plate 6, the right sliding plate 9 slides to the position right above the right base plate 8, the left sliding plate 7 and the left base plate 6 slide to the left side of the instrument main body shell 1 along the left sliding chute 5.1, the first half buckling body 10 and the second half buckling body 12 are buckled, the right sliding plate 9 and the right base plate 8 slide to the right side of the instrument main body shell 1 along the right sliding chute 5.2, the third half buckling body 13 and the fourth half buckling body 15 are buckled, as shown in fig. 2, the test may begin. When the sponge earplugs do not need to be worn, the cover body 2.1 is opened, the sponge earplugs are placed into the earplug mounting grooves 4, and the cover body 2.1 is covered. After the test is finished, the buckling of the first half buckle body 10 and the second half buckle body 12 is released, the buckling of the third half buckle body 13 and the fourth half buckle body 15 is released, the left sliding plate 7 and the left substrate 6 slide to the upper side of the front face of the instrument main body shell 1 along the left sliding groove 5.1, the first bump 6.1 reaches the upper right limit position of the left sliding groove 5.1, the right sliding plate 9 and the right substrate 8 slide to the upper side of the front face of the instrument main body shell 1 along the right sliding groove 5.2, the second bump 8.1 reaches the upper left limit position of the right sliding groove 5.2, the left sliding plate 7 slides rightwards, the right sliding plate 9 slides leftwards, the fifth half buckle body and the sixth half buckle body 17 are buckled, and the first half buckle body 10 and the second half buckle body 11 are buckled, and the third half buckle body 13 and the fourth half buckle body 14 are buckled.

According to the noise vibration testing device, the function diversity of the noise vibration testing device is ensured through the illuminating device 3 and the earplug box 2, the earplug box 2 does not need to be provided with a sponge pad, and the structure of the earplug box 2 is simplified while sponge earplugs can be fixed through the earplug mounting groove 4 which is slightly smaller than the sponge earplugs; the existing earplug box 2 does not influence the use of the instrument main body when being connected with the instrument main body, and the earplug box 2 is fixedly connected with the instrument main body, so that the structure of the earplug box 2 is simplified. Through setting up the dust cover, when not using noise analysis appearance, can prevent that the dust from adsorbing on noise vibration testing arrangement, can prevent simultaneously that the display screen from receiving the striking and damaging, also do not influence noise vibration testing arrangement's use. When using a noise vibration testing arrangement, this dust cover need not to dismantle and places alone, still on the instrument main part, has avoided specifically placing the dust cover when having avoided testing, has just also avoided losing of dust cover simultaneously. Meanwhile, the dust cover is convenient and understandable in opening and closing operation.

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

Claims

1. A noise vibration testing device comprises an instrument main body, an earplug box (2) arranged at the bottom of the instrument main body and a lighting device (3) arranged at the back of an instrument main body shell (1), wherein the earplug box (2) is arranged at the bottom of the instrument main body shell (1), and a cover body (2.1) of the earplug box (2) is positioned at the back of the earplug box (2), and is characterized in that the earplug box (2) is fixedly connected with the instrument main body, an earplug mounting groove (4) is arranged in the earplug box (2), sponge earplugs are arranged in the earplug mounting groove (4), and sponge earplugs are positioned in the earplug mounting groove (4) and are in a squeezing state; be equipped with the dust cover that is used for protecting instrument main part display screen and instrument main part button in the instrument main part, the dust cover includes left base plate (6), left slide (7), right base plate (8) and right slide (9), equal sliding connection instrument main part shell (1) of left base plate (6) and right base plate (8), left side slide (7) sliding connection left base plate (6) and can slide to directly over the front of left base plate (6), left side base plate (6) can drive left slide (7) and make a round trip to slide between instrument main part shell (1) front and instrument main part shell (1) left surface, right side slide (9) sliding connection right base plate (8) and can slide to directly over the front of right base plate (8), right side base plate (8) can drive right slide (9) make a round trip to slide between instrument main part shell (1) front and instrument main part shell (1) right surface, left side base plate (6), Left slide (7), right base plate (8) and right slide (9) can be located instrument main body shell (1) openly top simultaneously and shelter from the dust for display screen and button.

2. A noise vibration testing device according to claim 1, wherein the volume of the sponge ear plugs in the ear plug mounting groove (4) is greater than 1/2 of the total volume of the sponge ear plugs.

3. A noise vibration testing device according to claim 1, wherein the width of the left base plate (6), the left slider (7), the right base plate (8) and the right slider (9) is smaller than the thickness of the instrument body; when the left substrate (6), the left sliding plate (7), the right substrate (8) and the right sliding plate (9) shield dust for the display screen and the keys, the left substrate (6) and the right substrate (8) have an overlapping area.

4. The noise vibration testing device according to claim 1, wherein a left sliding groove (5.1) and a right sliding groove (5.2) are arranged on the instrument main body casing (1), the left sliding groove (5.1) is positioned on the front surface and the left surface of the instrument main body casing (1), and the right sliding groove (5.2) is positioned on the front surface and the right surface of the instrument main body casing (1); the back of the left base plate (6) is provided with a first bump (6.1) corresponding to the left sliding chute (5.1), the first bump (6.1) is installed in the left sliding chute (5.1) and is connected with the left sliding chute (5.1) in a sliding manner, the back of the right base plate (8) is provided with a second bump (8.1) corresponding to the right sliding chute (5.2), and the second bump (8.1) is installed in the right sliding chute (5.2) and is connected with the right sliding chute (5.2) in a sliding manner; a first slide way (6.2) is arranged on the front surface of the left base plate (6), a second slide way (8.2) is arranged on the front surface of the right base plate (8), the first slide way (6.2) and the second slide way (8.2) are arranged along the left-right direction, a first slide block (7.1) is arranged on the back surface of the left slide plate (7) corresponding to the first slide way (6.2), the left slide plate (7) is connected with the first slide way (6.2) in a sliding manner through the first slide block (7.1), a second slide block is arranged on the back surface of the right slide plate (9) corresponding to the second slide way (8.2), and the right slide plate (9) is connected with the second slide way (8.2) in a sliding manner through the second slide block; when left base plate (6), left slide (7), right base plate (8) and right slide (9) all are located instrument main part front top, first slider (7.1) are located the rightmost side of first slide (6.2) and the second slider is located the leftmost side of second slide (8.2), right base plate (8) left side edge is located left base plate (6) top or left base plate (6) right edge is located right base plate (8) top.

5. A noisy vibration test device according to claim 4, characterized in that, when said left base plate (6) and left slide plate (7) are located at the left side of the instrument body, the left slide plate (7) is located at the right left side of the left base plate (6); when the left base plate (6) and the left sliding plate (7) are positioned on the right side of the instrument main body, the right sliding plate (9) is positioned right to the right base plate (8).

6. A noise-vibration testing device according to claim 4, characterized in that the number of said left (5.1) and right (5.2) runners is two, one left runner (5.1) being located on the top side of the display and keys, the other left runner (5.1) being located on the bottom side of the display and keys, one right runner (5.2) being located on the top side of the display and keys, the other right runner (5.2) being located on the bottom side of the display and keys; the number of the first convex blocks (6.1) and the second convex blocks (8.1) is two, the two left sliding grooves (5.1) and the two first convex blocks (6.1) are arranged in a one-to-one correspondence manner, and the two right sliding grooves (5.2) and the two second convex blocks (8.1) are arranged in a one-to-one correspondence manner.

7. The noise vibration testing device of claim 4, wherein the back of the main body housing (1) is provided with a first half button (10) and a third half button (13), the left of the main body housing (1) is provided with a first half button (11), the front of the left sliding plate (7) is provided with a second half button (12), the first half button (11) and the second half button (12) have the same structure and can be buckled with the first half button (10), when the left sliding plate (7) is positioned at the left side of the main body housing (1), the first half button (10) can be buckled with the second half button (12), the left sliding plate (7) can be fixed by the limit of the first slideway (6.2) and the buckling of the first half button (10) and the second half button (12), when the left base plate (6) and the left sliding plate (7) are positioned above the front of the main body housing (1), the first half buckle body (10) can be buckled with the second half buckle body I (11); instrument main part shell (1) right side is equipped with the first (14) of the first half knot body of fourth, be equipped with the second (15) of the half knot body of fourth on right slide (9) the front, the first (14) of the half knot body of fourth and the second (15) of the half knot body of fourth structure are the same, the homoenergetic with the first lock of the half knot body of third (13), when right slide (9) are located instrument main part shell (1) right side, the third can detain the body with the second (15) lock of the half knot body of fourth (13), spacing through second slide (8.2), and the first (9) of the half knot body of third (13) and the second (15) lock can fix right slide (9), when right base plate (8) and right slide (9) are located instrument main part shell (1) front top, the first (14) lock of the half knot body of third (13) and the half knot body of fourth.

8. The noise vibration test device according to claim 7, wherein the first half button body (10) is connected to the back surface of the instrument body case (1) by a first connecting band (18), and the third half button body (13) is connected to the back surface of the instrument body case (1) by a second connecting band (19).

9. The noise vibration testing device according to claim 4, wherein a fifth half button is disposed on the front surface of the left base plate (6), a sixth half button (17) is disposed on the front surface of the right base plate (8), the sixth half button (17) is disposed corresponding to the fifth half button, and the fifth half button can be fastened on the sixth half button (17) when the left edge of the right base plate (8) is located above the left base plate (6) or the right edge of the left base plate (6) is located above the right base plate (8).

10. A noise vibration testing device according to claim 9, wherein said fifth button half is connected to the left base plate (6) by a third connecting band (16).