CN214621401U - Liquid level positioning device for detecting common glass measuring device - Google Patents
Liquid level positioning device for detecting common glass measuring device Download PDFInfo
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- CN214621401U CN214621401U CN202120571348.1U CN202120571348U CN214621401U CN 214621401 U CN214621401 U CN 214621401U CN 202120571348 U CN202120571348 U CN 202120571348U CN 214621401 U CN214621401 U CN 214621401U
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Abstract
The utility model discloses a liquid level positioning device for detecting a common glass measuring gauge, which comprises a base, a slide bar, a transmission rod, a slide block and image acquisition equipment, and is characterized in that; the sliding rod is arranged on the base to form a base frame, the sliding block is arranged on the base frame and slides axially along the base frame, the base frame is provided with a transmission rod parallel to the sliding rod, and the transmission rod drives the sliding block to move axially along the base frame; the image acquisition equipment is carried on the sliding block; the height of the liquid level detector is accurately adjusted to enable the liquid level detector to be horizontally aligned with the scale marks of the glass measuring device to be detected, so that accurate liquid level information is obtained, and errors at the position in the verification process are reduced.
Description
Technical Field
The utility model relates to a verification technical field of glass measuring vessel commonly used, more specifically the liquid level positioner who is used for examining glass measuring vessel commonly used that says so relates to one kind.
Background
Commonly used glass measuring apparatus comprises a single-marking volumetric flask, a measuring cylinder, a measuring cup, an indexing pipette, a single-marking pipette, a burette and the like, generally, after the glass measuring apparatus is produced by a manufacturer, the glass measuring apparatus can be calibrated by related professional technical departments, the calibration cycle is generally three years, and the purpose of ensuring that a user accurately meters and mixes solution or performs other operations during a test is achieved.
At present, most of verification of common glass measuring instruments is performed in a manual operation mode, for example, when the capacity indication value of the common glass measuring instrument to be verified is qualified, the quality of the glass measuring instrument to be verified is weighed and peeled through a weighing device, then purified water (distilled water or deionized water) is injected into the glass measuring instrument to be verified, the weighing and the water temperature measurement are performed, then whether the actual capacity and the capacity of the glass measuring instrument to be tested are within an allowable error range is calculated through a formula, if the calculated result and the actual capacity of the glass measuring instrument to be tested are within the error range, the glass measuring instrument to be verified is qualified, otherwise, the glass measuring instrument to be verified is unqualified, and each step of the whole process needs manual operation and reading, so that the verification is very complicated.
For the above reasons, the prior art has gradually developed an apparatus for automatically calibrating a glass measuring device, for example, an apparatus named as an automatic capacity calibrating apparatus for a glass measuring device under application No. 201910456183.0, and a method for calibrating the same, which discloses an automated technique. However, the capacity of the glass measuring apparatus is not freely determined, but is determined according to the method required by the national verification regulations to be effective.
According to the requirements of the national measurement and calibration regulation JJJG 196-2006 of the people's republic of China, the calibration point of a common glass measuring device has strict requirements, and multiple points are required to be taken for calibration instead of only one calibration point; for the selection of detection points, the following is divided:
1) a burette: 1 mL-10 mL of half volume and total volume; 25mL (0-5) mL, (0-10) mL, (0-15) mL, (0-20) mL, and (0-25) mL; 50mL (0-10) mL, (0-20) mL, (0-30) mL, (0-40) mL, or (0-50) mL; 100mL (0-20) mL, (0-40) mL, (0-60) mL, (0-80) mL, and (0-100) mL;
2) indexing the pipette: a detection point of less than 0.5mL (including 0.5mL), a half volume (half volume-liquid flow port); total capacity. 1/10 for total volume at assay site above 0.5mL (excluding 0.5 mL). If there is no 1/10 graduation line of the total volume, check 2/10 points (from the liquid outlet); half capacity (half capacity to liquid flow port); total capacity.
3) Measuring cylinder, measuring cup: 1/1O of total capacity. If there is no 1/10 graduation line for total capacity, check point 2/10 (from bottom); half capacity (half capacity to bottom), etc.
However, in the prior art, the height of the liquid level detection needs to be frequently adjusted according to the regulations to perform matching verification with the scale marks of the glass measuring device, and in the adjustment process, the prior art cannot achieve the requirements.
Disclosure of Invention
In view of this, the present application provides a liquid level positioning device for calibrating a common glass measuring device, so as to achieve accurate adjustment of the height of a liquid level detector, and make the liquid level detector horizontally align with the graduation lines of the glass measuring device to be tested, so as to obtain accurate liquid level information, and reduce errors at the position during the calibration process.
In a first aspect, the present application provides a liquid level positioning device for calibrating a conventional glass measuring device, the device comprising a base, a slide bar, a transmission rod, a slide block assembly, and an image acquisition device; the sliding rod is arranged on the base to form a base frame, the sliding block is arranged on the base frame and slides along the axial direction of the machine frame, the base is provided with a transmission rod parallel to the sliding rod, and the transmission rod drives the sliding block to move along the axial direction of the base frame; the image acquisition equipment is carried on the sliding block.
When the transmission rod is specifically arranged, the transmission rod adopts a screw rod structure, and the corresponding sliding block is provided with an inner screw hole assembled with the screw rod. The slide block is driven to move by rotating the transmission rod, and meanwhile, the locking at any position can be realized as long as the rotation of the screw rod is stopped.
In the specific technical scheme of the application, the relative positions of the transmission rod and the sliding rod are not particularly limited and are set according to actual requirements, for example, the transmission rod and the sliding rod can be opposite in front and back direction or left and right direction; meanwhile, the radial section shape of the slide rod is not limited, and for example, the slide rod can be of a cylindrical structure or a polygonal structure.
When the sliding block is arranged, laser lamps are arranged on two sides of the sliding block. The positioning device is used for positioning whether the image acquisition equipment is level with the liquid level.
When the transmission rod is arranged specifically, the transmission rod is driven to rotate through a structure of a stepping motor or a worm and gear.
In a second aspect, the application further provides a fine adjustment slider applied to the positioning device, the fine adjustment slider comprises a slider and an adjustment knob, the adjustment knob is detachably arranged below the slider, the transmission rod penetrates through the slider and the adjustment knob, the slider and the transmission rod are in sliding connection, and the adjustment knob and the transmission rod are in threaded connection; a rubber layer or a granular convex structure is arranged between the adjusting knob and the sliding block. So as to increase the friction force between the sliding block and the adjusting knob; the adjusting rod is rotated, the adjusting knob can slide along the axial direction of the adjusting knob, and meanwhile, the sliding block is arranged on the adjusting knob, so that the sliding block can be driven to move up and down.
Among the concrete technical scheme in this application, can directly superpose between adjust knob and the slider, also can set up the recess at the lower surface of slider, adjust knob coincide in the recess, and both kinds of modes are all can.
The utility model has the advantages as follows:
the utility model discloses the process is carried out the special design to image acquisition equipment's mount for its can be convenient, accurate regulation height, thereby make image acquisition equipment align with the liquid level scale that awaits measuring, just so can be very convenient detect, accord with "examination regulation" requirement.
Secondly, the specific fine setting function of this application, both can also finely tune through rotating adjust knob after having carried out the coarse adjustment through rotatory adjusting lever, just so can be more accurate assurance image acquisition equipment align with the level of the liquid level that awaits measuring.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the slider (inverted) structure of the present invention.
Fig. 3 is the utility model discloses a carry on image acquisition equipment structure schematic diagram.
Fig. 4 is a schematic view of the driving transmission rod of the worm gear structure of the present invention.
In the figure, a base 1, a sliding rod 2, a transmission rod 3, a sliding block 4, an adjusting knob 4.1, a laser lamp 4.2 and an image acquisition device 5 are arranged.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
At present, in the process of automatically calibrating the glass measuring device, the glass measuring device cannot be subjected to multi-point calibration according to the requirement of a calibration rule, and based on the problem, the liquid level positioning device for calibrating the common glass measuring device is developed and can be applied to the automatic capacity calibrating device of the glass measuring device. To facilitate an understanding of the present embodiments. Firstly, the liquid level positioning device for detecting the common glass measuring device disclosed by the embodiment of the utility model is introduced in detail.
Referring to fig. 1, the overall structure of a liquid level positioning device for calibrating a conventional glass measuring device is schematically shown, and the device includes a base 1, a slide bar 2, a transmission rod 3, a slide block 4, and an image acquisition device 5; the sliding rod 2 is fixed on the base 1 in a welding or threaded connection mode to form a base frame, the base frame is vertically arranged and can be stably placed on a horizontal plane when vertically arranged, the sliding block 4 is installed on the base frame and slides along the axial direction of the base frame, more specifically, a through hole matched with the sliding rod 2 is formed in the sliding block 4, the sliding block 4 is installed on the sliding rod 2 through the through hole, and the sliding block 4 can slide along the axial direction of the sliding rod 2; a transmission rod 3 is arranged on the base 1 in parallel with the slide rod 2, the transmission rod 3 drives the slide block 4 to move along the axial direction of the base frame, and the slide rod 2 of the transmission rod 3 jointly acts, so that the slide block 4 cannot rotate along with the transmission rod 3 when the transmission rod 3 is rotated; image acquisition equipment 5 carries on slider 4, rotates through drive transfer line 3, just can realize reciprocating image acquisition equipment 5 to make image acquisition equipment 5 align with the different scale mark of graduated flask.
Example 1
When the transmission rod 3 is specifically arranged, the transmission rod 3 adopts a screw rod structure, and the corresponding sliding block 4 is provided with an inner screw hole assembled with the screw rod. The slide block 4 is driven to move by rotating the transmission rod 3, and meanwhile, the locking at any position can be realized as long as the rotation of the screw rod is stopped, so that the adjustment corresponding to the scales of any measuring instrument can be realized. In the technical scheme of the embodiment, the relative position of the transmission rod 3 and the sliding rod 2 is not particularly limited, and the transmission rod and the sliding rod can be arranged according to actual requirements, for example, the transmission rod and the sliding rod can be opposite in front and back, and can also be opposite in left and right; meanwhile, the radial cross-sectional shape of the sliding rod 2 is not limited, and may be, for example, a cylindrical structure or a polygonal structure.
Example 2
When the slide block 4 is arranged, laser lamps 4.2 are arranged on two sides of the slide block 4; when the height of the sliding block 4 is adjusted, the laser lamp 4.2 irradiates on the scale mark of the glass measuring gauge to display the relative position of the image acquisition equipment 5 relative to the scale mark of the measuring gauge so as to position whether the image acquisition equipment 5 is level and level with the liquid level or not, and the position is visual.
Example 3
When the transmission rod 3 is specifically arranged, the transmission rod 3 is driven to rotate through a stepping motor or a worm and gear structure. For example, when the device is implemented by a stepping motor, the stepping motor is fixed on the base 1 and then is connected with the transmission rod 3 through a coupling, and the stepping motor controls the work of the stepping motor through a positive and negative circuit or a positive and negative switch, which is automatic control; the other type is manual operation, the transmission rod 3 is driven to rotate through a worm gear structure, wherein a worm wheel (in key groove matching) is arranged on the transmission rod 3, the worm is fixed on the base 1 and meshed with the worm wheel, and the transmission rod 3 is driven by rotating the worm.
Example 4
The application has further designed slider 4, and its purpose can realize the fine setting, has both called it fine setting slider 4, and fine setting slider 4 includes slider 4, adjust knob 4.1, is equipped with adjust knob 4.1 in the below detachable of slider 4, and transfer line 3 passes slider 4, adjust knob 4.1, and sliding connection (both do not form threaded connection), threaded connection between adjust knob 4.1 and the transfer line 3 between slider 4 and the transfer line 3. In the embodiment, a rubber layer or a granular convex structure is arranged between the adjusting knob 4.1 and the sliding block 4 to increase the friction force between the sliding block 4 and the adjusting knob 4.1, so that the adjusting knob 4.1 is prevented from being driven to rotate when the transmission rod 3 rotates; only after a large friction force is formed between the adjusting knob 4.1 and the sliding block 4, the adjusting rod is rotated, the adjusting knob 4.1 can slide along the axial direction of the adjusting knob, and meanwhile, the sliding block 4 is arranged on the adjusting knob, so that the sliding block 4 can be driven to move up and down. During specific implementation, the outer surface of the fine adjustment sliding block 4 is provided with a particle bulge, meanwhile, a particle point groove is formed in the sliding block 4 (the surface in contact with the adjusting knob 4.1), the particle point groove and the adjusting knob 4 form large friction force, and when the transmission rod 3 is rotated, the adjusting knob 4.1 and the sliding block 4 cannot rotate relatively. Among the concrete technical scheme in this application, can directly superpose between adjust knob 4.1 and the slider 4, also can set up the recess at the lower surface of slider 4, adjust knob 4.1 coincide in the recess, and two kinds of modes all can, for example the mode that this application demonstrates is exactly at the structure that adjust knob 4.1 is identical with slider 4.
This application is when implementing, earlier adjusts the slider (this is the coarse adjustment) through rotating transfer line 3, if the adjustment back, the position still is not just, can finely tune through rotatory adjust knob 4.1, because there is great frictional force between adjust knob 4.1 and the slider, consequently has certain damped when rotating, and the damped existence can avoid adjust knob 4.1 to control the dynamics easily when rotating, and it is convenient more well-used to adjust the location.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (6)
1. A liquid level positioning device for detecting a commonly used glass measuring device comprises a base, a slide rod, a transmission rod, a slide block assembly and image acquisition equipment, and is characterized in that the base is provided with a slide rod seat; the sliding rod is arranged on the base to form a base frame, the sliding block is arranged on the base frame and slides axially along the base frame, the base frame is provided with a transmission rod parallel to the sliding rod, and the transmission rod drives the sliding block to move axially along the base frame; the image acquisition equipment is carried on the sliding block.
2. The liquid level positioning apparatus for use in authenticating a conventional glass measuring cell of claim 1, wherein: the transmission rod adopts a screw rod structure, and the corresponding slide block is provided with an inner screw hole assembled with the screw rod.
3. The liquid level positioning apparatus for use in authenticating a conventional glass measuring cell of claim 1, wherein: laser lamps are arranged on two sides of the sliding block.
4. The liquid level positioning apparatus for use in authenticating a conventional glass measuring cell of claim 1, wherein: the transmission rod is driven to rotate by a stepping motor or a worm and gear structure.
5. The liquid level positioning apparatus for use in authenticating a conventional glass measuring cell of claim 1, wherein: an adjusting knob is detachably arranged below the sliding block, the transmission rod penetrates through the sliding block and the adjusting knob, the sliding block is connected with the transmission rod in a sliding mode, and the adjusting knob is connected with the transmission rod in a threaded mode; a rubber layer or a granular convex structure is arranged between the adjusting knob and the sliding block.
6. A liquid level positioning apparatus for use in the verification of a conventional glass measuring cell as claimed in claim 5, wherein: the adjusting knob and the sliding block are directly superposed or a groove is arranged on the lower surface of the sliding block, and the adjusting knob is inosculated in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120571348.1U CN214621401U (en) | 2021-03-22 | 2021-03-22 | Liquid level positioning device for detecting common glass measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120571348.1U CN214621401U (en) | 2021-03-22 | 2021-03-22 | Liquid level positioning device for detecting common glass measuring device |
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| CN214621401U true CN214621401U (en) | 2021-11-05 |
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| CN202120571348.1U Active CN214621401U (en) | 2021-03-22 | 2021-03-22 | Liquid level positioning device for detecting common glass measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116026434A (en) * | 2023-03-30 | 2023-04-28 | 菏泽昌盛源科技股份有限公司 | Liquid level measuring device for liquid tank |
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2021
- 2021-03-22 CN CN202120571348.1U patent/CN214621401U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116026434A (en) * | 2023-03-30 | 2023-04-28 | 菏泽昌盛源科技股份有限公司 | Liquid level measuring device for liquid tank |
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