CN212514981U - Digital multimeter calibrating device - Google Patents
Digital multimeter calibrating device Download PDFInfo
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- CN212514981U CN212514981U CN202022084470.4U CN202022084470U CN212514981U CN 212514981 U CN212514981 U CN 212514981U CN 202022084470 U CN202022084470 U CN 202022084470U CN 212514981 U CN212514981 U CN 212514981U
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Abstract
The utility model belongs to nuclear power detection technology, concretely relates to digital multimeter calibrating installation. The device comprises a calibrating instrument body, a mounting plate, an adjusting device and a fixing device; the adjusting device comprises a bolt rod, a threaded pipe and an adjusting plate; the fixing device comprises two fixing plates positioned at two sides of the calibrating instrument body and a supporting plate positioned below the calibrating instrument body. The mounting structure of design can be with mounting panel fixed mounting on the roof of detection room in addition, can place the examination appearance body through the backup pad, through rotating adjusting bolt, can make two splint with examination appearance body fixed clamp tight in fixing device, improve the stability in use of examining the appearance body, through the screw assembly between shank of bolt and the screwed pipe, the use height of examining the appearance body can be adjusted to the screwed pipe of rotation, it is more convenient to examine and determine, reduce the mixed and disorderly of examination environment, reduce the influence to the examination result, reduce limitation examination and reduce and examine and determine the error.
Description
Technical Field
The utility model belongs to nuclear power detection technology, concretely relates to digital multimeter calibrating installation.
Background
The multimeter is a magnetoelectric instrument with a rectifier and capable of measuring a plurality of electrical parameters such as alternating current, direct current, voltage, resistance and the like. For each electrical quantity, there are typically several ranges. Also called a multipurpose meter or simply a multipurpose meter. The multimeter is composed of a magnetoelectric system ammeter (meter head), a measuring circuit, a selection switch and the like. By changing the selection switch, various electrical parameters can be conveniently measured. The main basis for the circuit calculation is closed circuit ohm's law. Multimeters are of various types and can be selected according to different requirements when in use.
Before the multimeter leaves factory and is used, the multimeter is often required to be verified so as to have better use precision, in the prior art, the multimeter is verified in various ways, the multimeter can be sent to a measurement yard for calibration, or a meter with higher accuracy and the multimeter to be detected can be selected for measuring the same quantity, such as voltage, current and the like, and the reading is compared, measured and corrected, but the verification efficiency of the verification way is lower, so that a multimeter verification instrument appears in the market, can be used for directly testing the multimeter to be verified, has high use efficiency and can be used for batch detection, but the multimeter verification instrument is often required to be placed on the same verification platform with the multimeter to be detected when in use, and when a plurality of multimeters are detected simultaneously, the circuits and the like of the existing multimeter verification instrument are added, the calibration environment on the calibration table-board is disordered and easily affects the calibration result, so that the calibration table-board has many limitations and errors in use.
Disclosure of Invention
The utility model aims at providing a digital multimeter calibrating installation can reduce the examination error.
The technical scheme of the utility model as follows:
a digital multimeter calibrating device comprises a calibrating instrument body, a mounting plate positioned above the calibrating instrument body, an adjusting device arranged between the mounting plate and the calibrating instrument body, and a fixing device used for mounting and fixing the calibrating instrument body;
the adjusting device comprises a bolt rod, a threaded pipe and an adjusting plate; the bottom end of the threaded pipe is rotatably connected with the adjusting plate, the lower end of the bolt rod is in threaded connection with the threaded pipe below, the top end of the bolt rod is fixedly connected with the center of the mounting plate, and the threaded pipe can change relative position with the bolt rod above through threads when rotating;
the fixing device comprises two fixing plates positioned at two sides of the calibrating instrument body and a supporting plate positioned below the calibrating instrument body, the top end of each fixing plate is connected with the adjusting plate, the bottom end of each fixing plate is connected with the supporting plate, and the calibrating instrument body is placed on the supporting plate; the fixed plate pass through the horizontal regulation lead screw of threaded connection, the regulation lead screw on install splint near the one end of examining and determine the appearance body, rotate the splint relative movement who drives examination appearance body both sides through adjusting the lead screw.
The mounting plate is provided with a mounting structure through a mounting shaft hole; the mounting structure include installation pole and coupling spring, the installation pole runs through the mounting hole the mounting panel to the coupling spring suit is in the part of mounting panel below the installation pole, coupling spring's top is connected with the bottom of mounting panel, the bottom transverse connection of installation pole has the push pedal, coupling spring's bottom is connected with the top of push pedal, the push pedal promotes the installation pole, can make the coupling spring compression.
The left side and the right side of the upper end of the mounting rod are respectively provided with a steering groove with a semicircular cross section, steering sleeves can be rotatably arranged in the steering grooves, and the outer sides of the steering sleeves are connected with rotating rods in the vertical direction.
The lower end of the rotating rod is processed into an inclined surface facing the inner side.
The top ends of the mounting rods are all provided with pointed structures.
Adjusting device still include sleeve and the directional bar of the below installation of mounting panel, telescopic inside downside all inserted the directional bar, the bottom of directional bar respectively with the four corners position department fixed connection on regulating plate top.
The outer part of the threaded pipe is provided with a leather sheath with anti-skid grains.
And a fastening nut is screwed outside the bolt rod.
And a hand wheel is arranged on the adjusting screw rod.
The fixed plate and the clamping plate are provided with transverse directional structures which are uniformly distributed on the transverse section of the calibrating instrument body, each directional structure comprises a directional cylinder and a directional column which are respectively connected with the clamping plate and the fixed plate, one end of each directional column is inserted into the corresponding directional cylinder, and the corresponding directional columns are in sliding fit with the corresponding directional cylinders.
The utility model discloses the effect as follows:
1. this digital multimeter calibrating installation, can be with mounting panel fixed mounting on the roof of detection room through the cooperation of mounting panel and mounting structure, can place the examination appearance body through the backup pad, through rotating adjusting bolt, can make two splint with examination appearance body fixed clamp tight in fixing device, improve the stability in use of examining the appearance body, screw assembly through between shank of bolt and the screwed pipe, the use height of examining the appearance body can be adjusted to the rotation screwed pipe, it is more convenient to examine and determine, adaptability is strong, reduce the direct chaotic condition of placing the examination appearance body and causing on examining and determine the bench, reduce the unorganized of examining and determining the environment, reduce the influence to the examination result, reduce the examination limitation and reduce the error.
2. This digital multimeter calibrating installation, it is when installing the mounting panel, set up the through-hole through corresponding the position on the roof wall at the detection room, aim at the installation through-hole on the mounting panel, promote the installation pole through the push pedal, make the coupling spring compression, the upside that the upside region that will install the pole passed the roof passes the through-hole on roof and stretches out to the roof wall, loosen the push pedal, the installation pole slides down under coupling spring's elasticity, the bottom of dwang and the top contact of roof wall this moment, rotate through the dwang, make the dwang rotate to horizontal position, cooperation coupling spring's elasticity, thereby can fix the mounting panel on the roof wall, it is more convenient to install.
3. This digital multimeter calibrating installation can place the examination tools such as the examination probe of examination appearance body through placing the box, improves the protection to the examination probe of examination appearance body, reduces and puts and the phenomenon of damage indiscriminately, and it is more convenient to use, and the measuring environment is more regular.
Drawings
FIG. 1 is a schematic diagram of a digital multimeter calibration apparatus;
FIG. 2 is a schematic view of a portion A of FIG. 1;
FIG. 3 is a left side view schematic view showing the connection of a rotating lever, a steering sleeve mounting lever, etc.;
in the figure: 1. a calibrating instrument body; 2. mounting a plate; 3. a bolt shank; 4. a threaded pipe; 5. an adjusting plate; 6. a sleeve; 7. an orientation bar; 8. adjusting the lead screw; 9. a splint; 10. placing the box; 11. mounting a rod; 12. a connecting spring; 13. pushing the plate; 14. a steering groove; 15. a steering sleeve; 16. rotating the rod; 17. a pointed structure; 18. a bevel; 19. an orientation cylinder; 20. a directional column; 21. a hand wheel; 22. a leather sheath; 23. fastening a nut; 24. a fixing plate; 25. and a support plate.
Detailed Description
The present invention will be further explained with reference to the drawings and the detailed description.
The digital multimeter calibrating device shown in fig. 1 comprises a calibrating instrument body 1, a mounting plate 2 positioned above the calibrating instrument body 1, an adjusting device arranged between the mounting plate 2 and the calibrating instrument body 1, and a fixing device for installing and fixing the calibrating instrument body 1.
In this embodiment, the four corner regions of the mounting plate 2 are provided with mounting through holes penetrating vertically, and each mounting through hole is provided with a mounting structure for fixing the mounting plate 2;
as shown in fig. 2 and 3, the mounting structure includes a mounting rod 11 and a connecting spring 12, the mounting rod 11 penetrates the mounting plate 2 through a mounting through hole, the connecting spring 12 is sleeved on a portion of the mounting rod 11 below the mounting plate 2, a top end of the connecting spring 12 is connected with a bottom end of the mounting plate 2, a push plate 13 is transversely connected with a bottom end of the mounting rod 11, a bottom end of the connecting spring 12 is connected with a top end of the push plate 13, and the push plate 13 pushes the mounting rod 11 to compress the connecting spring 12.
It should also be noted that the top ends of the mounting rods 11 are all provided with a pointed structure 17, and the mounting rods 11 are more conveniently inserted into the through holes of the roof wall through the pointed structure 17.
When installing mounting panel 2, set up the through-hole through corresponding the position on the roof wall at the detection room, aim at the installation through-hole on the mounting panel 2, promote installation pole 11 through push pedal 13, make connecting spring 12 compress, the upside region that will install pole 11 passes the through-hole on roof and stretches out to the upside of roof wall, loosen push pedal 13, installation pole 11 is gliding downwards under connecting spring 12's elasticity, the bottom of dwang 16 and the top contact of roof wall this moment, rotate through dwang 16, make dwang 16 rotate to horizontal position, cooperation connecting spring 12's elasticity, thereby can fix mounting panel 2 on the roof wall, it is more convenient to install.
The number of mounting structures may be multiple, 4, 6 or more. Evenly distributed on the mounting plate 2.
As shown in fig. 1, an adjusting device is located between the mounting plate 2 and the prover body 1, and includes a bolt bar 3, a threaded pipe 4, and an adjusting plate 5.
The bottom of screwed pipe 4 is connected with the rotation of regulating plate 5 (regulating plate 5 processing mounting hole promptly, and 4 lower extremes of screwed pipe are located the mounting hole, can rotate but reciprocate and be injectd), the screwed pipe 4 threaded connection of the lower extreme and the below of shank of bolt 3, the top of shank of bolt 3 and above-mentioned mounting panel 2 center department fixed connection, can change through the screw thread and the shank of bolt 3 relative position of top when screwed pipe 4 rotates.
The lower part of the mounting plate 2 is provided with sleeves 6, the lower side inside each sleeve 6 is inserted with a directional rod 7, and the bottom ends of the directional rods 7 are fixedly connected with the four corners of the top end of the adjusting plate 5 respectively;
when the threaded pipe 4 rotates, the adjusting plate 5 below the threaded pipe is driven to move up and down, the position of the orientation rods 7 at the two ends and the sleeve 6 is changed, and therefore the calibrating instrument body 1 is adjusted to move up and down together with the adjusting plate 5.
The leather sheath 22 with the anti-skidding lines is fixedly sleeved outside the threaded pipe 4, so that a user can conveniently rotate the threaded pipe 4 to adjust the use height of the calibrating instrument body 1, friction is increased, and the skidding phenomenon is reduced.
In addition, a fastening nut 23 can be screwed outside the bolt rod 3, and the fastening nut 23 can be in locking contact with the top end of the threaded pipe 4 by rotating the fastening nut 23 downwards, so that the screwing fastening capacity between the bolt rod 3 and the threaded pipe 4 can be ensured, the adjusted position between the bolt rod 3 and the threaded pipe 4 is fastened, and the use reliability is improved.
As shown in fig. 3, the fixing device serves to fix the certification instrument body 1 to the adjustment plate 5.
The fixing device comprises two fixing plates 24 positioned at two sides of the calibrating instrument body 1 and a supporting plate 25 positioned below the calibrating instrument body, the top end of each fixing plate 24 is connected with the adjusting plate 5, the bottom end of each fixing plate is connected with the supporting plate 25, and the calibrating instrument body 1 is placed on the supporting plate 25.
The center processing of fixed plate 24 has the screw through-hole, adjusts lead screw 8 through the installation of screw through-hole, adjusts the one end that is close to examination appearance body 1 on the lead screw 8 and installs splint 9, adjusts lead screw 8 and rotates the splint 9 relative movement who drives examination appearance body 1 both sides for the splint 9 of examining and determine the 1 left and right sides of appearance body supports tightly with examination appearance body 1 both ends respectively, plays the positioning action to examining and determine appearance body 1. In order to facilitate the rotation of the adjusting screw 8, a hand wheel 21 is arranged on the adjusting screw 8. Meanwhile, the hand wheel 21 is convenient for clamping and disassembling the calibrating instrument body 1.
And a plurality of transverse directional structures (4, 6 or other) uniformly distributed on the transverse section of the calibrator body are further arranged between the fixing plate 24 and the clamping plate 9 on each side, and two ends of each directional structure are respectively connected with the clamping plate 9 and the fixing plate 24 on the side. The orientation structure comprises an orientation cylinder 19 and an orientation column 20 which are respectively connected with the clamping plate 9 and the fixing plate 24, one end of the orientation column 20 is inserted into the orientation cylinder 19, the orientation column 20 is in sliding fit with the orientation cylinder 19, and the stability in the left-right movement adjustment process of the clamping plate 9 is ensured through the sliding fit between the orientation cylinder 19 and the orientation column 20.
To sum up, can be with mounting panel 2 fixed mounting on the roof of detection room through mounting panel 2 and mounting structure's cooperation, can place examination appearance body 1 through backup pad 25, adjust lead screw 8 through rotating, can make two splint 9 with examining the fixed clamping of appearance body 1 in fixing device, improve the stability in use of examining the appearance body 1, screw assembly through between shank of bolt 3 and screwed pipe 4, rotate screwed pipe 4 and can adjust the use height of examining the appearance body 1, it is more convenient to examine and determine, adaptability is strong, reduce the chaotic condition that examination appearance body 1 directly placed and cause on examining the bench, reduce the disorder of examining the determine environment, reduce the influence to the examination result, reduce the examination limitation and reduce the examination error.
In addition, can the left side of backup pad bottom and the regional equal fixedly connected with in right side place box 10 to the front end that each placed box 10 all is provided with places the mouth, can place examination tools such as the examination probe of examination appearance body 1 through placing box 10, improves the protection to the examination probe of examination appearance body 1, reduces and puts in disorder and the phenomenon of damage, and it is more convenient to use, and the measuring environment is more regular.
When the universal meter calibrating platform is used, firstly, four through holes are correspondingly formed in the roof area at the top of the universal meter calibrating platform according to the positions of the four mounting through holes in the mounting plate 2, then the mounting plate 2 is aligned with the roof, the mounting rod 11 is upwards pushed by using the push plate 13, after the rotating rod 16 is inserted into the through holes, the push plate 13 is loosened, the mounting rod 11 downwards extends under the elastic force of the connecting spring 12, the rotating rod 16 on the mounting rod 11 is rotated, unfolded and tiled, after the rotating rods 16 on the four mounting rods 11 are tiled stably, the roof wall is clamped by the elastic force of the connecting spring 12 in cooperation with the rotating rod 16 and the mounting plate 2 if the roof wall is made of softer materials, a reinforcing structure can be selected to reinforce the roof wall according to actual conditions, the mounting stability is ensured, then, the calibrating instrument body 1 is calibrated to a proper using height by using the leather sleeve 22 to rotate the threaded pipe 4, after the verification is completed, the detection probes and the like on the verification instrument body 1 may be placed inside the placement box 10.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a digital multimeter calibrating installation which characterized in that: the calibrating device comprises a calibrating instrument body (1), a mounting plate (2) positioned above the calibrating instrument body (1), an adjusting device arranged between the mounting plate (2) and the calibrating instrument body (1), and a fixing device used for mounting and fixing the calibrating instrument body (1);
the adjusting device comprises a bolt rod (3), a threaded pipe (4) and an adjusting plate (5); the bottom end of the threaded pipe (4) is rotatably connected with the adjusting plate (5), the lower end of the bolt rod (3) is in threaded connection with the threaded pipe (4) below, the top end of the bolt rod (3) is fixedly connected with the center of the mounting plate (2), and the threaded pipe (4) can be changed in relative position with the bolt rod (3) above through threads when rotating;
the fixing device comprises two fixing plates (24) positioned at two sides of the calibrating instrument body (1) and a supporting plate (25) positioned below the calibrating instrument body, the top ends of the fixing plates (24) are connected with the adjusting plate (5), the bottom ends of the fixing plates are connected with the supporting plate (25), and the calibrating instrument body (1) is placed on the supporting plate (25); fixed plate (24) pass through horizontal regulation lead screw (8) of threaded connection, regulation lead screw (8) on be close to the one end of examining and determine appearance body (1) and install splint (9), rotate through adjusting lead screw (8) and drive splint (9) relative movement who examines and determine appearance body (1) both sides.
2. The digital multimeter calibration device of claim 1, wherein: the mounting plate (2) is provided with a mounting structure through a mounting shaft hole; mounting structure including installation pole (11) and coupling spring (12), installation pole (11) run through the mounting hole mounting panel (2) to coupling spring (12) suit is in the part of installation pole (11) below being located mounting panel (2), the top of coupling spring (12) is connected with the bottom of mounting panel (2), the bottom transverse connection of installation pole (11) has push pedal (13), the bottom of coupling spring (12) is connected with the top of push pedal (13), push pedal (13) promote installation pole (11), can make coupling spring (12) compression.
3. The digital multimeter calibration device of claim 2, wherein: the left side and the right side of the upper end of the mounting rod (11) are respectively provided with a steering groove (14) with a semicircular cross section, steering sleeves (15) can be rotatably arranged in the steering grooves (14), and the outer side of each steering sleeve (15) is connected with a rotating rod (16) in the vertical direction.
4. The digital multimeter calibration device of claim 3, wherein: the lower end of the rotating rod (16) is processed into an inclined surface (18) facing the inner side.
5. The digital multimeter calibration device of claim 3, wherein: the top ends of the mounting rods (11) are all set to be pointed structures (17).
6. The calibrating device for the digital multimeter as claimed in any one of claims 1 to 5, wherein: adjusting device sleeve (6) and directional bar (7) of the below installation of mounting panel (2) still include, the inside downside of sleeve (6) all inserted directional bar (7), the bottom of directional bar (7) respectively with the four corners position department fixed connection on regulating plate (5) top.
7. The calibrating device for the digital multimeter as claimed in any one of claims 1 to 5, wherein: the outer part of the threaded pipe (4) is provided with a leather sheath (22) with anti-skid threads.
8. The calibrating device for the digital multimeter as claimed in any one of claims 1 to 5, wherein: and a fastening nut (23) is screwed outside the bolt rod (3).
9. The calibrating device for the digital multimeter as claimed in any one of claims 1 to 5, wherein: and a hand wheel (21) is arranged on the adjusting screw rod (8).
10. The calibrating device for the digital multimeter as claimed in any one of claims 1 to 5, wherein: fixed plate (24) and splint (9) between be equipped with horizontal, the orientation structure of evenly distributed on the horizontal cross-section of examination appearance body, the orientation structure including respectively with splint (9) and fixed plate (24) be connected directional section of thick bamboo (19) and directional post (20), the one end of directional post (20) insert to directional section of thick bamboo (19) inside, and sliding fit between directional post (20) and the directional section of thick bamboo (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022084470.4U CN212514981U (en) | 2020-09-21 | 2020-09-21 | Digital multimeter calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022084470.4U CN212514981U (en) | 2020-09-21 | 2020-09-21 | Digital multimeter calibrating device |
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| Publication Number | Publication Date |
|---|---|
| CN212514981U true CN212514981U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022084470.4U Active CN212514981U (en) | 2020-09-21 | 2020-09-21 | Digital multimeter calibrating device |
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| CN (1) | CN212514981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068058A (en) * | 2020-09-21 | 2020-12-11 | 江苏核电有限公司 | Digital multimeter calibrating device |
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2020
- 2020-09-21 CN CN202022084470.4U patent/CN212514981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068058A (en) * | 2020-09-21 | 2020-12-11 | 江苏核电有限公司 | Digital multimeter calibrating device |
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