CN213688659U - Sound level meter for occupational health detection - Google Patents
Sound level meter for occupational health detection Download PDFInfo
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- CN213688659U CN213688659U CN202023087563.9U CN202023087563U CN213688659U CN 213688659 U CN213688659 U CN 213688659U CN 202023087563 U CN202023087563 U CN 202023087563U CN 213688659 U CN213688659 U CN 213688659U
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- detection head
- level meter
- sound level
- occupational health
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- 238000001514 detection method Methods 0.000 title claims abstract description 87
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000007689 inspection Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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Abstract
The utility model relates to a sound level meter for occupational health detection, which relates to the field of occupational health detection equipment and comprises a sound level meter host, a detection head connected with the sound level meter host, a wind shield arranged on the detection head, and a connecting mechanism arranged between the wind shield and the detection head, wherein the wind shield is provided with a mounting hole, and the detection head is arranged in the mounting hole in a penetrating way; the connecting mechanism comprises a fixed plate fixedly arranged on the detection head, a plurality of sliding rods connected to the fixed plate in a sliding mode and a driving assembly arranged below the fixed plate, the sliding rods are located in the mounting holes, and the driving assembly drives the sliding rods to slide towards the direction close to or far away from the detection head synchronously. This application drives a plurality of slide bar butt through drive assembly on the inside wall of mounting hole, and then fixes the windshield on the detection head of sound level meter, improves the stability of windshield in the sound level meter use.
Description
Technical Field
The application relates to the field of occupational health check out test set, especially relate to a sound level meter for occupational health detects.
Background
When occupational health detection is carried out, noise of the surrounding environment is detected by a common sound level meter, the sound level meter is a noise measuring instrument, a detection head of the sound level meter receives the noise, and an acoustic signal is converted into an electric signal through an internal circuit to be output.
Among the correlation technique, the staff is when detecting the noise, and the wind cap is established to the cover on detecting the head, prevents that the detection effect of wind sound among the surrounding environment to detecting the head from producing the influence, and the inventor thinks, because the sponge is used commonly to the wind cap and is made, and the texture is softer, breaks away from easily in the testing process and detects the head, causes the influence to the accuracy of testing result.
SUMMERY OF THE UTILITY MODEL
In order to improve the fixing effect of the windshield on the sound level meter detection head, the accuracy of the detection result of the sound level meter is ensured. The application provides a sound level meter for occupational health detection.
The application provides a sound level meter for occupational health detects adopts following technical scheme:
a sound level meter for occupational health detection comprises a sound level meter host, a detection head connected to the sound level meter host, a wind shield arranged on the detection head, and a connecting mechanism arranged between the wind shield and the detection head, wherein a mounting hole is formed in the wind shield, and the detection head is arranged in the mounting hole in a penetrating manner;
the connecting mechanism comprises a fixed plate fixedly arranged on the detection head, a plurality of sliding rods connected to the fixed plate in a sliding mode and a driving assembly arranged below the fixed plate, the sliding rods are located in the mounting holes, and the driving assembly drives the sliding rods to slide towards the direction close to or far away from the detection head synchronously.
Through adopting above-mentioned technical scheme, the staff drives a plurality of slide bars through drive assembly and slides to keeping away from the direction synchronization of detecting the head, until the butt on the inside wall of mounting hole, a plurality of slide bars exert pressure to the inside wall of mounting hole, and the frictional force between slide bar and the windshield is great this moment, and the windshield is difficult for coming off from detecting the head, has promoted the fixed effect of wind shield at the detection head in the use of sound level meter effectively.
Optionally, a plurality of through grooves are formed in the fixing plate, and the sliding rods are arranged in the corresponding through grooves in a penetrating mode and slide.
Through adopting above-mentioned technical scheme, lead to the groove and restricted the movement track of slide bar, play effectual limiting displacement to the slide bar, make the slide bar only slide in leading to the groove, lead to the groove simultaneously and make the slide bar slide more smoothly when driving assembly drives down.
Optionally, a sliding barrel is rotatably connected to the sliding rod, the sliding barrel is arranged in the through groove in a penetrating mode, and the peripheral face of the sliding barrel abuts against the inner side wall of the through groove.
Through adopting above-mentioned technical scheme, the slide bar slides in leading to the inslot under drive assembly's effect, and the slide cartridge rolls in leading to the inslot, becomes slide cartridge and the rolling friction that leads to between the inslot lateral wall with the slide friction between slide bar and the logical inslot lateral wall, and then has reduced the frictional force when the slide bar slides effectively, makes the slip of slide bar more smooth and easy.
Optionally, the driving assembly includes a rotary table rotatably connected to the fixed plate, the rotary table is provided with a plurality of sliding grooves, the plurality of sliding grooves correspond to the plurality of sliding rods one by one, and each sliding groove is connected with a sliding block in a sliding manner; a through groove corresponding to the slide bar is formed in the fixed plate, and the slide bar penetrates through the corresponding through groove and then is fixedly connected with the corresponding slide block; the sliding grooves are arc-shaped grooves, one end of each sliding groove is close to the detection head, the other end of each sliding groove extends in the direction far away from the detection head, and the sliding grooves are formed at intervals along the circumferential direction of the detection head.
Through adopting above-mentioned technical scheme, the staff establishes the windshield cover on detecting the head, make a plurality of slide bars all be located the mounting hole, rotate the carousel again and make to lead to the position of groove corresponding slide groove and take place the dislocation, lead to the position that the groove has restricted the slide bar simultaneously, make the slide bar slide in leading to the groove only, the slider can only be at the radial of carousel and slide promptly, and then make the slider slide in the spout to keeping away from the detection head, until the butt on the inside wall of mounting hole, accomplish the fixed to the windshield, the course of motion is simple and convenient and easily controlled.
Optionally, a limiting plate is fixedly arranged at one end, far away from the rotary table, of the sliding rod.
Through adopting above-mentioned technical scheme, the slide bar passes through the limiting plate butt on the inside wall of mounting hole, and the limiting plate has increased the area of contact between slide bar and the mounting hole lateral wall, and then has increased the frictional force between the two, has strengthened the stability of windshield.
Optionally, the limiting plate is an arc-shaped plate, and the convex surface of the limiting plate is located on one side of the limiting plate away from the detection head.
Through adopting above-mentioned technical scheme, the arc has further increased the area of contact between slide bar and the mounting hole lateral wall, and frictional force increases, has further improved the stability of windshield on the slide bar.
Optionally, a plurality of grooves are formed in the side wall, away from the detection head, of the limiting plate.
Through adopting above-mentioned technical scheme, because the windshield material is comparatively soft, the back is gone up to the limiting plate butt on the inside wall of mounting hole, and the inside wall of mounting hole receives the extrusion and inlays in the recess, has further promoted the stability between limiting plate and the windshield, makes the windshield more difficult break away from the detection head.
Optionally, a through groove is formed in a penetrating position of the fixed plate, where the sliding rod penetrates through the through groove, a sliding cylinder is connected to the sliding rod in a rotating mode and abuts against the inner side wall of the through groove.
Through adopting above-mentioned technical scheme, the slide bar when leading to the inslot motion, drives the slide cartridge and rolls on the inside wall that leads to the groove, becomes the slide friction between slide cartridge and the lateral wall that leads to the groove with the slide friction between slide bar and the lateral wall that leads to the groove, has reduced the frictional force between slide bar and the lateral wall that leads to the groove effectively, makes the slide of slide bar in leading to the inslot more smooth and easy.
Optionally, the turntable and the detection head are arranged at intervals.
Through adopting above-mentioned technical scheme, the noise when avoiding the staff to rotate the carousel conducts to the sound level meter host computer through detecting the head to influence follow-up detection effect, stability when having promoted the sound level meter and detecting the noise.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the sliding rods synchronously slide on the fixing plate until the sliding rods abut against the inner side wall of the mounting hole, so that the windshield is effectively fixed on the detection head, and the stability of the windshield on the detection head is improved;
2. a limiting plate is fixedly arranged at one end, away from the detection head, of each sliding rod, the sliding rods abut against the inner side wall of the mounting hole through the limiting plate, the limiting plate increases the contact area between the sliding rods and the inner side wall of the mounting hole, friction force is further increased, and the fixing effect of the windshield on the detection head is further improved;
3. the spout is the arc setting, and when the staff rotated the carousel, the slider received the restriction of slide bar, can only radially move at the carousel, and the spout that the arc set up makes the slider can radially slide at the carousel, and the slider is close to or keeps away from the detection head simultaneously, drives the slide bar and is close to or keeps away from the detection head, and then fixes the windshield on the detection head.
Drawings
FIG. 1 is a schematic diagram of the structure of a sound level meter according to the present application;
FIG. 2 is a sectional view showing a positional relationship between a stopper plate and a mounting hole;
FIG. 3 is an exploded view of the connection mechanism;
fig. 4 is an exploded view showing the position of the chute.
Description of reference numerals: 1. a sound level meter host; 2. a detection head; 3. a windshield; 31. mounting holes; 4. a connecting mechanism; 41. a fixing plate; 411. a through groove; 42. a slide bar; 421. a limiting plate; 422. a slide cylinder; 4211. a limiting groove; 43. a drive assembly; 431. a turntable; 4311. a chute; 432. a slide block.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses sound level meter for occupational health detection. Referring to fig. 1 and 2, the sound level meter comprises a sound level meter main body 1, a detection head 2 fixedly arranged on the sound level meter main body 1, a windshield 3 arranged on the detection head 2, and a connecting mechanism 4 arranged between the windshield 3 and the detection head 2; detection head 2 is cylindricly, and windshield 3 sets up to the spheroid, and the material of windshield sets up to the sponge, and it leads the sound effect better, and has seted up mounting hole 31 on the windshield 3, and the mounting hole 31 radius is greater than detection head 2 radius, and detection head 2 is located mounting hole 31 to be connected with windshield 3 through coupling mechanism 4, in order to increase windshield 3 and detection head 2's connection stability, be difficult for dropping in the testing process.
Referring to fig. 2 and 3, the connection mechanism 4 includes a fixing plate 41 fixedly disposed at one end of the detection head 2 close to the sound level meter main unit 1, a plurality of sliding rods 42 slidably connected to the fixing plate 41, and a driving assembly 43 disposed below the fixing plate 41 and used for driving the plurality of sliding rods 42 to move along the radial direction of the detection head 2 synchronously, the sliding rods 42 are vertically disposed in a cylindrical shape, and the plurality of sliding rods 42 are uniformly distributed along the circumferential direction of the detection head 2 at intervals, and meanwhile, the minimum distance between the axes of the sliding rods 42 and the axes of the detection head 2 is smaller than the radius of the mounting hole 31, so that the mounting hole 31 can be sleeved on the detection head 2.
The staff establishes the back on detecting head 2 with windshield 3 cover, through drive assembly 43 control a plurality of slide bars 42 on fixed plate 41 to keeping away from the direction synchronous slip of detecting head 2 axis, until the equal butt of a plurality of slide bars 42 on the inside wall of mounting hole 31, outside power is applyed to the inside wall of mounting hole 31 to a plurality of slide bars 42, and then make the frictional force increase between slide bar 42 and the mounting hole 31 lateral wall, make windshield 3 be difficult for breaking away from detecting head 2, effectively improve the fixed effect of windshield 3 on detecting head 2.
Referring to fig. 3, the fixing plate 41 has a disk shape, the axis of the fixing plate 41 coincides with the axis of the detection head 2, the radius of the fixing plate 41 is larger than the radius of the mounting hole 31 in the windshield cover 3, and when the windshield cover 3 is fitted to the detection head 2, the windshield cover 3 abuts against the side of the fixing plate 41 away from the sound level meter main body 1, and the fixing plate 41 provides a good support function for the windshield cover 3.
Referring to fig. 2 and 3, in order to better fix the windshield 3 on the inspection head 2, a limit plate 421 is fixedly arranged at one end of each sliding rod 42 away from the fixed plate 41, the limit plate 421 is arranged in an arc shape and has the same radius as the radius of the mounting hole 31 on the windshield 3, the arc convex surface is positioned at one side of the limiting plate 421 far away from the detection head 2, meanwhile, a plurality of limiting grooves 4211 are horizontally arranged on the convex surface of the limiting plate 421, because the windshield 3 is made of soft material, when the limit plate 421 is abutted against the side wall of the mounting hole 31 under the driving of the slide rod 42, the side walls of the mounting holes 31 are pressed and fit in the plurality of limit grooves 4211, so that the contact area between the windshield 3 and the limit plate 421 is effectively increased, and then increase frictional force between the two, further improve the fixed effect of windshield 3 on detecting head 2, guarantee to detect head 2 and detect the accuracy when external noise.
Referring to fig. 3 and 4, the driving assembly 43 includes a rotary disc 431 rotatably connected to one side of the fixing plate 41 close to the sound level meter, an axis of the rotary disc 431 coincides with an axis of the detection head 2, the rotary disc 431 is sleeved on the detection head 2, and an inner diameter of the rotary disc 431 is larger than a diameter of the detection head 2, that is, the rotary disc 431 does not contact with the detection head 2, so that the detection result of the detection head 2 is prevented from being affected by the rotary disc 431 during rotation; the turntable 431 is provided with a plurality of sliding grooves 4311, the sliding grooves 4311 correspond to the sliding rods 42 one by one, each sliding groove 4311 is internally and slidably connected with a sliding block 432, the fixing plate 41 is provided with a through groove 411 corresponding to the sliding rods 42 one by one, and the sliding rods 42 are fixedly connected with the corresponding sliding blocks 432 after passing through the through grooves 411.
Referring to fig. 4, the sliding grooves 4311 are arc-shaped grooves, one end of each sliding groove 4311 is close to the axis of the turntable 431, and the other end of each sliding groove 4311 extends away from the axis of the turntable 431, and the sliding grooves 4311 are uniformly arranged along the circumferential direction of the turntable 431 at intervals; the cross section of the through slot 411 is rectangular, and the longer side of the rectangle is located in the radial direction of the fixing plate 41.
When the worker rotates the turntable 431, the positions of the sliding slots 4311 are changed, and the through slots 411 and the corresponding sliding slots 4311 are dislocated relatively because the fixing plate 41 is fixed on the detection head 2, that is, the positions of the through slots 411 on the fixing plate 41 are not changed; meanwhile, the through groove 411 limits the position of the sliding rod 42, so that the sliding rod 42 can only slide in the through groove 411 along the radial direction of the fixed plate 41, and further the motion track of the sliding block 432 in the sliding groove 4311 is limited, and the sliding block 432 does not rotate along with the rotary disc 431; because the sliding groove 4311 is an arc-shaped groove, in the rotating process of the rotary plate 431, the sliding block 432 slides in the sliding groove 4311 towards the direction close to or away from the axis of the detection head 2 to drive the sliding rod 42 to move in the through groove 411, so that the limiting plate 421 on the sliding rod 42 can be close to or away from the side wall of the mounting hole 31 of the windshield 3.
Referring to fig. 3 and 4, in order to make the movement of the sliding rod 42 in the through slot 411 on the rotary table 431 more convenient, each sliding rod 42 is rotatably connected with a sliding barrel 422, the sliding barrels 422 abut against two opposite side walls of the through slot 411, when the sliding rod 42 slides in the through slot 411, the sliding barrels 422 are driven to roll in the through slot 411, the sliding friction is changed into rolling friction, the friction force between the sliding rods is effectively reduced, and the sliding rod 42 is driven by the sliding block 432 to move in the through slot 411 more conveniently.
The implementation principle of the embodiment of the application is as follows: the staff installs windshield 3 back on detecting head 2 through mounting hole 31, rotate carousel 431, each spout 4311 all takes place the dislocation with the logical groove 411 that corresponds on the fixed plate 41 on the carousel 431, because a plurality of spouts 4311 all are the heliciform and set up and revolve to the same, and under the limiting displacement who leads to groove 411, a plurality of sliders 432 are along the radial direction synchronous slip to the direction of keeping away from detecting head 2 of carousel 431, it slides in leading to the groove 411 to drive corresponding slide bar 42, the equal butt of limiting plate 421 that corresponds on a plurality of slide bars 42 is on the inside wall of mounting hole 31 on windshield 3, increase the frictional force between detecting head 2 and the windshield 3, fix windshield 3 on detecting head 2 effectively, guarantee the whole accuracy when measuring noise on every side of sound level meter.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A sound level meter for occupational health detection is characterized in that: the wind shield detection device comprises a sound level meter host (1), a detection head (2) connected to the sound level meter host (1), a wind shield (3) arranged on the detection head (2) and a connecting mechanism (4) arranged between the wind shield (3) and the detection head (2), wherein a mounting hole (31) is formed in the wind shield (3), and the detection head (2) is arranged in the mounting hole (31) in a penetrating manner;
the connecting mechanism (4) comprises a fixed plate (41) fixedly arranged on the detection head (2), a plurality of sliding rods (42) connected to the fixed plate (41) in a sliding mode and a driving assembly (43) arranged below the fixed plate (41), the sliding rods (42) are located in the mounting holes (31), and the driving assembly (43) is used for driving the sliding rods (42) to slide towards the direction close to or far away from the detection head (2) synchronously.
2. Sound level meter for occupational health detection according to claim 1, wherein: a plurality of through grooves (411) are formed in the fixing plate (41), and the sliding rods (42) penetrate through the corresponding through grooves (411) to slide.
3. Sound level meter for occupational health detection according to claim 2, wherein: the sliding rod (42) is rotatably connected with a sliding barrel (422), the sliding barrel (422) penetrates through the through groove (411), and the peripheral surface of the sliding barrel (422) abuts against the inner side wall of the through groove (411).
4. Sound level meter for occupational health detection according to claim 2, wherein: the driving assembly (43) comprises a rotary disc (431) which is rotatably connected to the fixed plate (41), a plurality of sliding grooves (4311) are formed in the rotary disc (431), the sliding grooves (4311) correspond to a plurality of sliding rods (42) one by one, a sliding block (432) is connected in each sliding groove (4311) in a sliding mode, and the sliding rods (42) penetrate through the rotary disc (431) and then are fixedly connected with the corresponding sliding blocks (432); the sliding grooves (4311) are arc-shaped grooves, one end of each sliding groove is close to the detection head (2), the other end of each sliding groove extends towards the direction far away from the detection head (2), and the sliding grooves (4311) are formed at intervals along the circumferential direction of the detection head (2).
5. Sound level meter for occupational health detection according to claim 1, wherein: and a limiting plate (421) is fixedly arranged at one end of the sliding rod (42) far away from the rotary disc (431).
6. Sound level meter for occupational health detection according to claim 5, wherein: the limiting plate (421) is arranged to be an arc-shaped plate, and the convex surface of the limiting plate (421) is positioned on one side, away from the detection head (2), of the limiting plate (421).
7. Sound level meter for occupational health detection according to claim 6, wherein: and a plurality of grooves are formed in the side wall, away from the detection head (2), of the limiting plate (421).
8. Sound level meter for occupational health detection according to claim 4, wherein: the rotary disc (431) and the detection head (2) are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023087563.9U CN213688659U (en) | 2020-12-21 | 2020-12-21 | Sound level meter for occupational health detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023087563.9U CN213688659U (en) | 2020-12-21 | 2020-12-21 | Sound level meter for occupational health detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213688659U true CN213688659U (en) | 2021-07-13 |
Family
ID=76740089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023087563.9U Expired - Fee Related CN213688659U (en) | 2020-12-21 | 2020-12-21 | Sound level meter for occupational health detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213688659U (en) |
-
2020
- 2020-12-21 CN CN202023087563.9U patent/CN213688659U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210713 |